* Added breakpad support for Linux.

thirdparty/CMakeLists.txt

@@ -3,3 +3,6 @@ ADD_SUBDIRECTORY( liblastfm2 )
 IF( APPLE )
     ADD_SUBDIRECTORY( SPMediaKeyTap )
 ENDIF()
+IF( UNIX AND NOT APPLE )
+    ADD_SUBDIRECTORY( breakpad )
+ENDIF()

thirdparty/breakpad/CMakeLists.txt

@@ -0,0 +1,47 @@
+PROJECT(breakpad)
+cmake_minimum_required(VERSION 2.8)
+
+set( CMAKE_MODULE_PATH
+     ${CMAKE_MODULE_PATH}
+     ${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules
+)
+
+add_definitions(-DSTDC_HEADERS -std=gnu++98)
+
+if(${CMAKE_BUILD_TYPE} MATCHES "Release")
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+endif(${CMAKE_BUILD_TYPE} MATCHES "Release")
+
+IF(UNIX)
+  IF(APPLE)
+
+
+  ELSE(APPLE)
+
+    SET( breakpadSources
+         client/linux/crash_generation/crash_generation_client.cc
+         client/linux/crash_generation/crash_generation_server.cc
+#         client/linux/sender/google_crash_report_sender.cc
+         client/linux/minidump_writer/minidump_writer.cc
+         client/linux/minidump_writer/linux_dumper.cc
+         client/linux/handler/exception_handler.cc
+         common/linux/dump_symbols.cc
+         common/linux/file_id.cc
+         common/linux/libcurl_wrapper.cc
+         common/linux/google_crashdump_uploader.cc
+         common/linux/synth_elf.cc
+         common/linux/http_upload.cc
+         common/linux/guid_creator.cc
+         common/linux/elf_symbols_to_module.cc
+         common/string_conversion.cc
+         common/convert_UTF.c
+         client/minidump_file_writer.cc
+    )
+
+  ENDIF(APPLE)
+ENDIF(UNIX)
+
+include_directories(.)
+add_definitions(-fPIC)
+add_library(tomahawk_breakpad STATIC ${breakpadSources})
+target_link_libraries(tomahawk_breakpad)

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+
+# Set the component getting installed.
+IF(NOT CMAKE_INSTALL_COMPONENT)
+  IF(COMPONENT)
+    MESSAGE(STATUS "Install component: \"${COMPONENT}\"")
+    SET(CMAKE_INSTALL_COMPONENT "${COMPONENT}")
+  ELSE(COMPONENT)
+    SET(CMAKE_INSTALL_COMPONENT)
+  ENDIF(COMPONENT)
+ENDIF(NOT CMAKE_INSTALL_COMPONENT)
+
+# Install shared libraries without execute permission?
+IF(NOT DEFINED CMAKE_INSTALL_SO_NO_EXE)
+  SET(CMAKE_INSTALL_SO_NO_EXE "0")
+ENDIF(NOT DEFINED CMAKE_INSTALL_SO_NO_EXE)
+
+IF(CMAKE_INSTALL_COMPONENT)
+  SET(CMAKE_INSTALL_MANIFEST "install_manifest_${CMAKE_INSTALL_COMPONENT}.txt")
+ELSE(CMAKE_INSTALL_COMPONENT)
+  SET(CMAKE_INSTALL_MANIFEST "install_manifest.txt")
+ENDIF(CMAKE_INSTALL_COMPONENT)
+
+FILE(WRITE "/home/muesli/Sources/tomahawk/master/thirdparty/breakpad/build/${CMAKE_INSTALL_MANIFEST}" "")
+FOREACH(file ${CMAKE_INSTALL_MANIFEST_FILES})
+  FILE(APPEND "/home/muesli/Sources/tomahawk/master/thirdparty/breakpad/build/${CMAKE_INSTALL_MANIFEST}" "${file}\n")
+ENDFOREACH(file)

thirdparty/breakpad/client/linux/android_link.h

@@ -0,0 +1,44 @@
+// Copyright (c) 2010, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// The Android NDK doesn't have link.h. Fortunately, the only thing
+// that Breakpad uses from it is the ElfW macro, so define it here.
+
+#ifndef GOOGLE_BREAKPAD_CLIENT_LINUX_ANDROID_LINK_H_
+#define GOOGLE_BREAKPAD_CLIENT_LINUX_ANDROID_LINK_H_
+
+#include <sys/exec_elf.h>
+
+#ifndef ElfW
+#define ElfW(type)	_ElfW (Elf, ELFSIZE, type)
+#define _ElfW(e,w,t)	_ElfW_1 (e, w, _##t)
+#define _ElfW_1(e,w,t)	e##w##t
+#endif
+
+#endif  // GOOGLE_BREAKPAD_CLIENT_LINUX_ANDROID_LINK_H_

thirdparty/breakpad/client/linux/android_ucontext.h

@@ -0,0 +1,77 @@
+// Copyright (c) 2009, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Android runs a fairly new Linux kernel, so signal info is there,
+// but the NDK doesn't have the structs defined, so define
+// them here.
+// Adapted from platform-linux.cc in V8
+
+#ifndef GOOGLE_BREAKPAD_CLIENT_LINUX_ANDROID_UCONTEXT_H_
+#define GOOGLE_BREAKPAD_CLIENT_LINUX_ANDROID_UCONTEXT_H_
+
+#include <signal.h>
+
+#if !defined(__GLIBC__) && (defined(__arm__) || defined(__thumb__))
+
+struct sigcontext {
+  uint32_t trap_no;
+  uint32_t error_code;
+  uint32_t oldmask;
+  uint32_t arm_r0;
+  uint32_t arm_r1;
+  uint32_t arm_r2;
+  uint32_t arm_r3;
+  uint32_t arm_r4;
+  uint32_t arm_r5;
+  uint32_t arm_r6;
+  uint32_t arm_r7;
+  uint32_t arm_r8;
+  uint32_t arm_r9;
+  uint32_t arm_r10;
+  uint32_t arm_fp;
+  uint32_t arm_ip;
+  uint32_t arm_sp;
+  uint32_t arm_lr;
+  uint32_t arm_pc;
+  uint32_t arm_cpsr;
+  uint32_t fault_address;
+};
+typedef uint32_t __sigset_t;
+typedef struct sigcontext mcontext_t;
+typedef struct ucontext {
+  uint32_t uc_flags;
+  struct ucontext* uc_link;
+  stack_t uc_stack;
+  mcontext_t uc_mcontext;
+  __sigset_t uc_sigmask;
+} ucontext_t;
+
+#endif
+
+#endif  // GOOGLE_BREAKPAD_CLIENT_LINUX_ANDROID_UCONTEXT_H_

thirdparty/breakpad/client/linux/crash_generation/client_info.h

@@ -0,0 +1,44 @@
+// Copyright (c) 2010 Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CLIENT_LINUX_CRASH_GENERATION_CLIENT_INFO_H_
+#define CLIENT_LINUX_CRASH_GENERATION_CLIENT_INFO_H_
+
+namespace google_breakpad {
+
+class CrashGenerationServer;
+
+struct ClientInfo {
+  CrashGenerationServer* crash_server_;
+  pid_t pid_;
+};
+
+}
+
+#endif // CLIENT_LINUX_CRASH_GENERATION_CLIENT_INFO_H_

thirdparty/breakpad/client/linux/crash_generation/crash_generation_client.cc

@@ -0,0 +1,89 @@
+// Copyright (c) 2010 Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include <stdio.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+
+#include <algorithm>
+
+#include "client/linux/crash_generation/crash_generation_client.h"
+#include "common/linux/eintr_wrapper.h"
+#include "common/linux/linux_libc_support.h"
+#include "third_party/lss/linux_syscall_support.h"
+
+namespace google_breakpad {
+
+bool
+CrashGenerationClient::RequestDump(const void* blob, size_t blob_size)
+{
+  int fds[2];
+  sys_socketpair(AF_UNIX, SOCK_STREAM, 0, fds);
+  static const unsigned kControlMsgSize = CMSG_SPACE(sizeof(int));
+
+  struct kernel_msghdr msg;
+  my_memset(&msg, 0, sizeof(struct kernel_msghdr));
+  struct kernel_iovec iov[1];
+  iov[0].iov_base = const_cast<void*>(blob);
+  iov[0].iov_len = blob_size;
+
+  msg.msg_iov = iov;
+  msg.msg_iovlen = sizeof(iov) / sizeof(iov[0]);
+  char cmsg[kControlMsgSize];
+  my_memset(cmsg, 0, kControlMsgSize);
+  msg.msg_control = cmsg;
+  msg.msg_controllen = sizeof(cmsg);
+
+  struct cmsghdr* hdr = CMSG_FIRSTHDR(&msg);
+  hdr->cmsg_level = SOL_SOCKET;
+  hdr->cmsg_type = SCM_RIGHTS;
+  hdr->cmsg_len = CMSG_LEN(sizeof(int));
+  int* p = reinterpret_cast<int*>(CMSG_DATA(hdr));
+  *p = fds[1];
+
+  HANDLE_EINTR(sys_sendmsg(server_fd_, &msg, 0));
+  sys_close(fds[1]);
+
+  // wait for an ACK from the server
+  char b;
+  HANDLE_EINTR(sys_read(fds[0], &b, 1));
+
+  return true;
+}
+
+//static
+CrashGenerationClient*
+CrashGenerationClient::TryCreate(int server_fd)
+{
+  if (0 > server_fd)
+    return NULL;
+  return new CrashGenerationClient(server_fd);
+}
+
+}

thirdparty/breakpad/client/linux/crash_generation/crash_generation_client.h

@@ -0,0 +1,69 @@
+// Copyright (c) 2010 Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CLIENT_LINUX_CRASH_GENERATION_CRASH_GENERATION_CLIENT_H_
+#define CLIENT_LINUX_CRASH_GENERATION_CRASH_GENERATION_CLIENT_H_
+
+#include <stddef.h>
+
+namespace google_breakpad {
+
+class CrashGenerationClient {
+public:
+  ~CrashGenerationClient()
+  {
+  }
+
+  // Request the crash server to generate a dump.  |blob| is a hack,
+  // see exception_handler.h and minidump_writer.h
+  //
+  // Return true if the dump was successful; false otherwise.
+  bool RequestDump(const void* blob, size_t blob_size);
+
+  // Return a new CrashGenerationClient if |server_fd| is valid and
+  // connects to a CrashGenerationServer.  Otherwise, return NULL.
+  // The returned CrashGenerationClient* is owned by the caller of
+  // this function.
+  static CrashGenerationClient* TryCreate(int server_fd);
+
+private:
+  CrashGenerationClient(int server_fd) : server_fd_(server_fd)
+  {
+  }
+
+  int server_fd_;
+
+  // prevent copy construction and assignment
+  CrashGenerationClient(const CrashGenerationClient&);
+  CrashGenerationClient& operator=(const CrashGenerationClient&);
+};
+
+} // namespace google_breakpad
+
+#endif // CLIENT_LINUX_CRASH_GENERATION_CRASH_GENERATION_CLIENT_H_

thirdparty/breakpad/client/linux/crash_generation/crash_generation_server.cc

@@ -0,0 +1,468 @@
+// Copyright (c) 2010 Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include <assert.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <poll.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <vector>
+
+#include "client/linux/crash_generation/crash_generation_server.h"
+#include "client/linux/crash_generation/client_info.h"
+#include "client/linux/handler/exception_handler.h"
+#include "client/linux/minidump_writer/minidump_writer.h"
+#include "common/linux/eintr_wrapper.h"
+#include "common/linux/guid_creator.h"
+
+static const char kCommandQuit = 'x';
+
+static bool
+GetInodeForFileDescriptor(ino_t* inode_out, int fd)
+{
+  assert(inode_out);
+
+  struct stat buf;
+  if (fstat(fd, &buf) < 0)
+    return false;
+
+  if (!S_ISSOCK(buf.st_mode))
+    return false;
+
+  *inode_out = buf.st_ino;
+  return true;
+}
+
+// expected prefix of the target of the /proc/self/fd/%d link for a socket
+static const char kSocketLinkPrefix[] = "socket:[";
+
+// Parse a symlink in /proc/pid/fd/$x and return the inode number of the
+// socket.
+//   inode_out: (output) set to the inode number on success
+//   path: e.g. /proc/1234/fd/5 (must be a UNIX domain socket descriptor)
+static bool
+GetInodeForProcPath(ino_t* inode_out, const char* path)
+{
+  assert(inode_out);
+  assert(path);
+
+  char buf[256];
+  const ssize_t n = readlink(path, buf, sizeof(buf) - 1);
+  if (n == -1) {
+    return false;
+  }
+  buf[n] = 0;
+
+  if (0 != memcmp(kSocketLinkPrefix, buf, sizeof(kSocketLinkPrefix) - 1)) {
+    return false;
+  }
+
+  char* endptr;
+  const u_int64_t inode_ul =
+      strtoull(buf + sizeof(kSocketLinkPrefix) - 1, &endptr, 10);
+  if (*endptr != ']')
+    return false;
+
+  if (inode_ul == ULLONG_MAX) {
+    return false;
+  }
+
+  *inode_out = inode_ul;
+  return true;
+}
+
+static bool
+FindProcessHoldingSocket(pid_t* pid_out, ino_t socket_inode)
+{
+  assert(pid_out);
+  bool already_found = false;
+
+  DIR* proc = opendir("/proc");
+  if (!proc) {
+    return false;
+  }
+
+  std::vector<pid_t> pids;
+
+  struct dirent* dent;
+  while ((dent = readdir(proc))) {
+    char* endptr;
+    const unsigned long int pid_ul = strtoul(dent->d_name, &endptr, 10);
+    if (pid_ul == ULONG_MAX || '\0' != *endptr)
+      continue;
+    pids.push_back(pid_ul);
+  }
+  closedir(proc);
+
+  for (std::vector<pid_t>::const_iterator
+       i = pids.begin(); i != pids.end(); ++i) {
+    const pid_t current_pid = *i;
+    char buf[256];
+    snprintf(buf, sizeof(buf), "/proc/%d/fd", current_pid);
+    DIR* fd = opendir(buf);
+    if (!fd)
+      continue;
+
+    while ((dent = readdir(fd))) {
+      if (snprintf(buf, sizeof(buf), "/proc/%d/fd/%s", current_pid,
+                   dent->d_name) >= static_cast<int>(sizeof(buf))) {
+        continue;
+      }
+
+      ino_t fd_inode;
+      if (GetInodeForProcPath(&fd_inode, buf)
+          && fd_inode == socket_inode) {
+        if (already_found) {
+          closedir(fd);
+          return false;
+        }
+
+        already_found = true;
+        *pid_out = current_pid;
+        break;
+      }
+    }
+
+    closedir(fd);
+  }
+
+  return already_found;
+}
+
+namespace google_breakpad {
+
+CrashGenerationServer::CrashGenerationServer(
+  const int listen_fd,
+  OnClientDumpRequestCallback dump_callback,
+  void* dump_context,
+  OnClientExitingCallback exit_callback,
+  void* exit_context,
+  bool generate_dumps,
+  const std::string* dump_path) :
+    server_fd_(listen_fd),
+    dump_callback_(dump_callback),
+    dump_context_(dump_context),
+    exit_callback_(exit_callback),
+    exit_context_(exit_context),
+    generate_dumps_(generate_dumps),
+    started_(false)
+{
+  if (dump_path)
+    dump_dir_ = *dump_path;
+  else
+    dump_dir_ = "/tmp";
+}
+
+CrashGenerationServer::~CrashGenerationServer()
+{
+  if (started_)
+    Stop();
+}
+
+bool
+CrashGenerationServer::Start()
+{
+  if (started_ || 0 > server_fd_)
+    return false;
+
+  int control_pipe[2];
+  if (pipe(control_pipe))
+    return false;
+
+  if (fcntl(control_pipe[0], F_SETFD, FD_CLOEXEC))
+    return false;
+  if (fcntl(control_pipe[1], F_SETFD, FD_CLOEXEC))
+    return false;
+
+  if (fcntl(control_pipe[0], F_SETFL, O_NONBLOCK))
+    return false;
+
+  control_pipe_in_ = control_pipe[0];
+  control_pipe_out_ = control_pipe[1];
+
+  if (pthread_create(&thread_, NULL,
+                     ThreadMain, reinterpret_cast<void*>(this)))
+    return false;
+
+  started_ = true;
+  return true;
+}
+
+void
+CrashGenerationServer::Stop()
+{
+  assert(pthread_self() != thread_);
+
+  if (!started_)
+    return;
+
+  HANDLE_EINTR(write(control_pipe_out_, &kCommandQuit, 1));
+
+  void* dummy;
+  pthread_join(thread_, &dummy);
+
+  started_ = false;
+}
+
+//static
+bool
+CrashGenerationServer::CreateReportChannel(int* server_fd, int* client_fd)
+{
+  int fds[2];
+
+  if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, fds))
+    return false;
+
+  static const int on = 1;
+  // Enable passcred on the server end of the socket
+  if (setsockopt(fds[1], SOL_SOCKET, SO_PASSCRED, &on, sizeof(on)))
+    return false;
+
+  if (fcntl(fds[1], F_SETFL, O_NONBLOCK))
+    return false;
+  if (fcntl(fds[1], F_SETFD, FD_CLOEXEC))
+    return false;
+
+  *client_fd = fds[0];
+  *server_fd = fds[1];
+  return true;
+}
+
+// The following methods/functions execute on the server thread
+
+void
+CrashGenerationServer::Run()
+{
+  struct pollfd pollfds[2];
+  memset(&pollfds, 0, sizeof(pollfds));
+
+  pollfds[0].fd = server_fd_;
+  pollfds[0].events = POLLIN;
+
+  pollfds[1].fd = control_pipe_in_;
+  pollfds[1].events = POLLIN;
+
+  while (true) {
+    // infinite timeout
+    int nevents = poll(pollfds, sizeof(pollfds)/sizeof(pollfds[0]), -1);
+    if (-1 == nevents) {
+      if (EINTR == errno) {
+        continue;
+      } else {
+        return;
+      }
+    }
+
+    if (pollfds[0].revents && !ClientEvent(pollfds[0].revents))
+      return;
+
+    if (pollfds[1].revents && !ControlEvent(pollfds[1].revents))
+      return;
+  }
+}
+
+bool
+CrashGenerationServer::ClientEvent(short revents)
+{
+  if (POLLHUP & revents)
+    return false;
+  assert(POLLIN & revents);
+
+  // A process has crashed and has signaled us by writing a datagram
+  // to the death signal socket. The datagram contains the crash context needed
+  // for writing the minidump as well as a file descriptor and a credentials
+  // block so that they can't lie about their pid.
+
+  // The length of the control message:
+  static const unsigned kControlMsgSize =
+      CMSG_SPACE(sizeof(int)) + CMSG_SPACE(sizeof(struct ucred));
+  // The length of the regular payload:
+  static const unsigned kCrashContextSize =
+      sizeof(google_breakpad::ExceptionHandler::CrashContext);
+
+  struct msghdr msg = {0};
+  struct iovec iov[1];
+  char crash_context[kCrashContextSize];
+  char control[kControlMsgSize];
+  const ssize_t expected_msg_size = sizeof(crash_context);
+
+  iov[0].iov_base = crash_context;
+  iov[0].iov_len = sizeof(crash_context);
+  msg.msg_iov = iov;
+  msg.msg_iovlen = sizeof(iov)/sizeof(iov[0]);
+  msg.msg_control = control;
+  msg.msg_controllen = kControlMsgSize;
+
+  const ssize_t msg_size = HANDLE_EINTR(recvmsg(server_fd_, &msg, 0));
+  if (msg_size != expected_msg_size)
+    return true;
+
+  if (msg.msg_controllen != kControlMsgSize ||
+      msg.msg_flags & ~MSG_TRUNC)
+    return true;
+
+  // Walk the control payload and extract the file descriptor and validated pid.
+  pid_t crashing_pid = -1;
+  int signal_fd = -1;
+  for (struct cmsghdr *hdr = CMSG_FIRSTHDR(&msg); hdr;
+       hdr = CMSG_NXTHDR(&msg, hdr)) {
+    if (hdr->cmsg_level != SOL_SOCKET)
+      continue;
+    if (hdr->cmsg_type == SCM_RIGHTS) {
+      const unsigned len = hdr->cmsg_len -
+          (((uint8_t*)CMSG_DATA(hdr)) - (uint8_t*)hdr);
+      assert(len % sizeof(int) == 0u);
+      const unsigned num_fds = len / sizeof(int);
+      if (num_fds > 1 || num_fds == 0) {
+        // A nasty process could try and send us too many descriptors and
+        // force a leak.
+        for (unsigned i = 0; i < num_fds; ++i)
+          HANDLE_EINTR(close(reinterpret_cast<int*>(CMSG_DATA(hdr))[i]));
+        return true;
+      } else {
+        signal_fd = reinterpret_cast<int*>(CMSG_DATA(hdr))[0];
+      }
+    } else if (hdr->cmsg_type == SCM_CREDENTIALS) {
+      const struct ucred *cred =
+          reinterpret_cast<struct ucred*>(CMSG_DATA(hdr));
+      crashing_pid = cred->pid;
+    }
+  }
+
+  if (crashing_pid == -1 || signal_fd == -1) {
+    if (signal_fd)
+      HANDLE_EINTR(close(signal_fd));
+    return true;
+  }
+
+  // Kernel bug workaround (broken in 2.6.30 at least):
+  // The kernel doesn't translate PIDs in SCM_CREDENTIALS across PID
+  // namespaces. Thus |crashing_pid| might be garbage from our point of view.
+  // In the future we can remove this workaround, but we have to wait a couple
+  // of years to be sure that it's worked its way out into the world.
+
+  ino_t inode_number;
+  if (!GetInodeForFileDescriptor(&inode_number, signal_fd)) {
+    HANDLE_EINTR(close(signal_fd));
+    return true;
+  }
+
+  if (!FindProcessHoldingSocket(&crashing_pid, inode_number - 1)) {
+    HANDLE_EINTR(close(signal_fd));
+    return true;
+  }
+
+  std::string minidump_filename;
+  if (!MakeMinidumpFilename(minidump_filename))
+    return true;
+
+  if (!google_breakpad::WriteMinidump(minidump_filename.c_str(),
+                                      crashing_pid, crash_context,
+                                      kCrashContextSize)) {
+    HANDLE_EINTR(close(signal_fd));
+    return true;
+  }
+
+  if (dump_callback_) {
+    ClientInfo info;
+
+    info.crash_server_ = this;
+    info.pid_ = crashing_pid;
+
+    dump_callback_(dump_context_, &info, &minidump_filename);
+  }
+
+  // Send the done signal to the process: it can exit now.
+  memset(&msg, 0, sizeof(msg));
+  struct iovec done_iov;
+  done_iov.iov_base = const_cast<char*>("\x42");
+  done_iov.iov_len = 1;
+  msg.msg_iov = &done_iov;
+  msg.msg_iovlen = 1;
+
+  HANDLE_EINTR(sendmsg(signal_fd, &msg, MSG_DONTWAIT | MSG_NOSIGNAL));
+  HANDLE_EINTR(close(signal_fd));
+
+  return true;
+}
+
+bool
+CrashGenerationServer::ControlEvent(short revents)
+{
+  if (POLLHUP & revents)
+    return false;
+  assert(POLLIN & revents);
+
+  char command;
+  if (read(control_pipe_in_, &command, 1))
+    return false;
+
+  switch (command) {
+  case kCommandQuit:
+    return false;
+  default:
+    assert(0);
+  }
+
+  return true;
+}
+
+bool
+CrashGenerationServer::MakeMinidumpFilename(std::string& outFilename)
+{
+  GUID guid;
+  char guidString[kGUIDStringLength+1];
+
+  if (!(CreateGUID(&guid)
+        && GUIDToString(&guid, guidString, sizeof(guidString))))
+    return false;
+
+  char path[PATH_MAX];
+  snprintf(path, sizeof(path), "%s/%s.dmp", dump_dir_.c_str(), guidString);
+
+  outFilename = path;
+  return true;
+}
+
+// static
+void*
+CrashGenerationServer::ThreadMain(void *arg)
+{
+  reinterpret_cast<CrashGenerationServer*>(arg)->Run();
+  return NULL;
+}
+
+}  // namespace google_breakpad

thirdparty/breakpad/client/linux/crash_generation/crash_generation_server.h

@@ -0,0 +1,133 @@
+// Copyright (c) 2010 Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CLIENT_LINUX_CRASH_GENERATION_CRASH_GENERATION_SERVER_H_
+#define CLIENT_LINUX_CRASH_GENERATION_CRASH_GENERATION_SERVER_H_
+
+#include <pthread.h>
+
+#include <string>
+
+namespace google_breakpad {
+
+class ClientInfo;
+
+class CrashGenerationServer {
+public:
+  // WARNING: callbacks may be invoked on a different thread
+  // than that which creates the CrashGenerationServer.  They must
+  // be thread safe.
+  typedef void (*OnClientDumpRequestCallback)(void* context,
+                                              const ClientInfo* client_info,
+                                              const std::string* file_path);
+
+  typedef void (*OnClientExitingCallback)(void* context,
+                                          const ClientInfo* client_info);
+
+  // Create an instance with the given parameters.
+  //
+  // Parameter listen_fd: The server fd created by CreateReportChannel().
+  // Parameter dump_callback: Callback for a client crash dump request.
+  // Parameter dump_context: Context for client crash dump request callback.
+  // Parameter exit_callback: Callback for client process exit.
+  // Parameter exit_context: Context for client exit callback.
+  // Parameter generate_dumps: Whether to automatically generate dumps.
+  //     Client code of this class might want to generate dumps explicitly
+  //     in the crash dump request callback. In that case, false can be
+  //     passed for this parameter.
+  // Parameter dump_path: Path for generating dumps; required only if true is
+  //     passed for generateDumps parameter; NULL can be passed otherwise.
+  CrashGenerationServer(const int listen_fd,
+                        OnClientDumpRequestCallback dump_callback,
+                        void* dump_context,
+                        OnClientExitingCallback exit_callback,
+                        void* exit_context,
+                        bool generate_dumps,
+                        const std::string* dump_path);
+
+  ~CrashGenerationServer();
+
+  // Perform initialization steps needed to start listening to clients.
+  //
+  // Return true if initialization is successful; false otherwise.
+  bool Start();
+
+  // Stop the server.
+  void Stop();
+
+  // Create a "channel" that can be used by clients to report crashes
+  // to a CrashGenerationServer.  |*server_fd| should be passed to
+  // this class's constructor, and |*client_fd| should be passed to
+  // the ExceptionHandler constructor in the client process.
+  static bool CreateReportChannel(int* server_fd, int* client_fd);
+
+private:
+  // Run the server's event loop
+  void Run();
+
+  // Invoked when an child process (client) event occurs
+  // Returning true => "keep running", false => "exit loop"
+  bool ClientEvent(short revents);
+
+  // Invoked when the controlling thread (main) event occurs
+  // Returning true => "keep running", false => "exit loop"
+  bool ControlEvent(short revents);
+
+  // Return a unique filename at which a minidump can be written
+  bool MakeMinidumpFilename(std::string& outFilename);
+
+  // Trampoline to |Run()|
+  static void* ThreadMain(void* arg);
+
+  int server_fd_;
+
+  OnClientDumpRequestCallback dump_callback_;
+  void* dump_context_;
+
+  OnClientExitingCallback exit_callback_;
+  void* exit_context_;
+
+  bool generate_dumps_;
+
+  std::string dump_dir_;
+
+  bool started_;
+
+  pthread_t thread_;
+  int control_pipe_in_;
+  int control_pipe_out_;
+
+  // disable these
+  CrashGenerationServer(const CrashGenerationServer&);
+  CrashGenerationServer& operator=(const CrashGenerationServer&);
+};
+
+} // namespace google_breakpad
+
+#endif // CLIENT_LINUX_CRASH_GENERATION_CRASH_GENERATION_SERVER_H_

thirdparty/breakpad/client/linux/data/linux-gate-amd.sym

@@ -0,0 +1,3 @@
+MODULE Linux x86 B8CFDE93002D54DA1900A40AA1BD67690 linux-gate.so
+PUBLIC 400 0 __kernel_vsyscall
+STACK WIN 4 400 100 1 1 0 0 0 0 0 1

thirdparty/breakpad/client/linux/data/linux-gate-intel.sym

@@ -0,0 +1,3 @@
+MODULE Linux x86 4FBDA58B5A1DF5A379E3CF19A235EA090 linux-gate.so
+PUBLIC 400 0 __kernel_vsyscall
+STACK WIN 4 400 200 3 3 0 0 0 0 0 1

thirdparty/breakpad/client/linux/handler/exception_handler.cc

@@ -0,0 +1,514 @@
+// Copyright (c) 2010 Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// The ExceptionHandler object installs signal handlers for a number of
+// signals. We rely on the signal handler running on the thread which crashed
+// in order to identify it. This is true of the synchronous signals (SEGV etc),
+// but not true of ABRT. Thus, if you send ABRT to yourself in a program which
+// uses ExceptionHandler, you need to use tgkill to direct it to the current
+// thread.
+//
+// The signal flow looks like this:
+//
+//   SignalHandler (uses a global stack of ExceptionHandler objects to find
+//        |         one to handle the signal. If the first rejects it, try
+//        |         the second etc...)
+//        V
+//   HandleSignal ----------------------------| (clones a new process which
+//        |                                   |  shares an address space with
+//   (wait for cloned                         |  the crashed process. This
+//     process)                               |  allows us to ptrace the crashed
+//        |                                   |  process)
+//        V                                   V
+//   (set signal handler to             ThreadEntry (static function to bounce
+//    SIG_DFL and rethrow,                    |      back into the object)
+//    killing the crashed                     |
+//    process)                                V
+//                                          DoDump  (writes minidump)
+//                                            |
+//                                            V
+//                                         sys_exit
+//
+
+// This code is a little fragmented. Different functions of the ExceptionHandler
+// class run in a number of different contexts. Some of them run in a normal
+// context and are easy to code, others run in a compromised context and the
+// restrictions at the top of minidump_writer.cc apply: no libc and use the
+// alternative malloc. Each function should have comment above it detailing the
+// context which it runs in.
+
+#include "client/linux/handler/exception_handler.h"
+
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/limits.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdio.h>
+#include <sys/mman.h>
+#include <sys/prctl.h>
+#if !defined(__ANDROID__)
+#include <sys/signal.h>
+#endif
+#include <sys/syscall.h>
+#if !defined(__ANDROID__)
+#include <sys/ucontext.h>
+#include <sys/user.h>
+#endif
+#include <sys/wait.h>
+#if !defined(__ANDROID__)
+#include <ucontext.h>
+#endif
+#include <unistd.h>
+
+#include <algorithm>
+#include <utility>
+#include <vector>
+
+#include "common/linux/linux_libc_support.h"
+#include "common/memory.h"
+#include "client/linux/minidump_writer/linux_dumper.h"
+#include "client/linux/minidump_writer/minidump_writer.h"
+#include "common/linux/guid_creator.h"
+#include "common/linux/eintr_wrapper.h"
+#include "third_party/lss/linux_syscall_support.h"
+
+#include "linux/sched.h"
+
+#ifndef PR_SET_PTRACER
+#define PR_SET_PTRACER 0x59616d61
+#endif
+
+// A wrapper for the tgkill syscall: send a signal to a specific thread.
+static int tgkill(pid_t tgid, pid_t tid, int sig) {
+  return syscall(__NR_tgkill, tgid, tid, sig);
+  return 0;
+}
+
+namespace google_breakpad {
+
+// The list of signals which we consider to be crashes. The default action for
+// all these signals must be Core (see man 7 signal) because we rethrow the
+// signal after handling it and expect that it'll be fatal.
+static const int kExceptionSignals[] = {
+  SIGSEGV, SIGABRT, SIGFPE, SIGILL, SIGBUS, -1
+};
+
+// We can stack multiple exception handlers. In that case, this is the global
+// which holds the stack.
+std::vector<ExceptionHandler*>* ExceptionHandler::handler_stack_ = NULL;
+unsigned ExceptionHandler::handler_stack_index_ = 0;
+pthread_mutex_t ExceptionHandler::handler_stack_mutex_ =
+    PTHREAD_MUTEX_INITIALIZER;
+
+// Runs before crashing: normal context.
+ExceptionHandler::ExceptionHandler(const std::string &dump_path,
+                                   FilterCallback filter,
+                                   MinidumpCallback callback,
+                                   void *callback_context,
+                                   bool install_handler)
+  : filter_(filter),
+    callback_(callback),
+    callback_context_(callback_context),
+    handler_installed_(install_handler)
+{
+  Init(dump_path, -1);
+}
+
+ExceptionHandler::ExceptionHandler(const std::string &dump_path,
+                                   FilterCallback filter,
+                                   MinidumpCallback callback,
+                                   void* callback_context,
+                                   bool install_handler,
+                                   const int server_fd)
+  : filter_(filter),
+    callback_(callback),
+    callback_context_(callback_context),
+    handler_installed_(install_handler)
+{
+  Init(dump_path, server_fd);
+}
+
+// Runs before crashing: normal context.
+ExceptionHandler::~ExceptionHandler() {
+  UninstallHandlers();
+}
+
+void ExceptionHandler::Init(const std::string &dump_path,
+                            const int server_fd)
+{
+  crash_handler_ = NULL;
+  if (0 <= server_fd)
+    crash_generation_client_
+      .reset(CrashGenerationClient::TryCreate(server_fd));
+
+  if (handler_installed_)
+    InstallHandlers();
+
+  if (!IsOutOfProcess())
+    set_dump_path(dump_path);
+
+  pthread_mutex_lock(&handler_stack_mutex_);
+  if (handler_stack_ == NULL)
+    handler_stack_ = new std::vector<ExceptionHandler *>;
+  handler_stack_->push_back(this);
+  pthread_mutex_unlock(&handler_stack_mutex_);
+}
+
+// Runs before crashing: normal context.
+bool ExceptionHandler::InstallHandlers() {
+  // We run the signal handlers on an alternative stack because we might have
+  // crashed because of a stack overflow.
+
+  // We use this value rather than SIGSTKSZ because we would end up overrunning
+  // such a small stack.
+  static const unsigned kSigStackSize = 8192;
+
+  signal_stack = malloc(kSigStackSize);
+  stack_t stack;
+  memset(&stack, 0, sizeof(stack));
+  stack.ss_sp = signal_stack;
+  stack.ss_size = kSigStackSize;
+
+  if (sys_sigaltstack(&stack, NULL) == -1)
+    return false;
+
+  struct sigaction sa;
+  memset(&sa, 0, sizeof(sa));
+  sigemptyset(&sa.sa_mask);
+
+  // mask all exception signals when we're handling one of them.
+  for (unsigned i = 0; kExceptionSignals[i] != -1; ++i)
+    sigaddset(&sa.sa_mask, kExceptionSignals[i]);
+
+  sa.sa_sigaction = SignalHandler;
+  sa.sa_flags = SA_ONSTACK | SA_SIGINFO;
+
+  for (unsigned i = 0; kExceptionSignals[i] != -1; ++i) {
+    struct sigaction* old = new struct sigaction;
+    if (sigaction(kExceptionSignals[i], &sa, old) == -1)
+      return false;
+    old_handlers_.push_back(std::make_pair(kExceptionSignals[i], old));
+  }
+  return true;
+}
+
+// Runs before crashing: normal context.
+void ExceptionHandler::UninstallHandlers() {
+  for (unsigned i = 0; i < old_handlers_.size(); ++i) {
+    struct sigaction *action =
+        reinterpret_cast<struct sigaction*>(old_handlers_[i].second);
+    sigaction(old_handlers_[i].first, action, NULL);
+    delete action;
+  }
+  pthread_mutex_lock(&handler_stack_mutex_);
+  std::vector<ExceptionHandler*>::iterator handler =
+      std::find(handler_stack_->begin(), handler_stack_->end(), this);
+  handler_stack_->erase(handler);
+  pthread_mutex_unlock(&handler_stack_mutex_);
+  old_handlers_.clear();
+}
+
+// Runs before crashing: normal context.
+void ExceptionHandler::UpdateNextID() {
+  GUID guid;
+  char guid_str[kGUIDStringLength + 1];
+  if (CreateGUID(&guid) && GUIDToString(&guid, guid_str, sizeof(guid_str))) {
+    next_minidump_id_ = guid_str;
+    next_minidump_id_c_ = next_minidump_id_.c_str();
+
+    char minidump_path[PATH_MAX];
+    snprintf(minidump_path, sizeof(minidump_path), "%s/%s.dmp",
+             dump_path_c_,
+             guid_str);
+
+    next_minidump_path_ = minidump_path;
+    next_minidump_path_c_ = next_minidump_path_.c_str();
+  }
+}
+
+// void ExceptionHandler::set_crash_handler(HandlerCallback callback) {
+//   crash_handler_ = callback;
+// }
+
+// This function runs in a compromised context: see the top of the file.
+// Runs on the crashing thread.
+// static
+void ExceptionHandler::SignalHandler(int sig, siginfo_t* info, void* uc) {
+  // All the exception signals are blocked at this point.
+  pthread_mutex_lock(&handler_stack_mutex_);
+
+  if (!handler_stack_->size()) {
+    pthread_mutex_unlock(&handler_stack_mutex_);
+    return;
+  }
+
+  for (int i = handler_stack_->size() - 1; i >= 0; --i) {
+    if ((*handler_stack_)[i]->HandleSignal(sig, info, uc)) {
+      // successfully handled: We are in an invalid state since an exception
+      // signal has been delivered. We don't call the exit handlers because
+      // they could end up corrupting on-disk state.
+      break;
+    }
+  }
+
+  pthread_mutex_unlock(&handler_stack_mutex_);
+
+  if (info->si_pid) {
+    // This signal was triggered by somebody sending us the signal with kill().
+    // In order to retrigger it, we have to queue a new signal by calling
+    // kill() ourselves.
+    if (tgkill(getpid(), syscall(__NR_gettid), sig) < 0) {
+      // If we failed to kill ourselves (e.g. because a sandbox disallows us
+      // to do so), we instead resort to terminating our process. This will
+      // result in an incorrect exit code.
+      _exit(1);
+    }
+  } else {
+    // This was a synchronous signal triggered by a hard fault (e.g. SIGSEGV).
+    // No need to reissue the signal. It will automatically trigger again,
+    // when we return from the signal handler.
+  }
+
+  // As soon as we return from the signal handler, our signal will become
+  // unmasked. At that time, we will  get terminated with the same signal that
+  // was triggered originally. This allows our parent to know that we crashed.
+  // The default action for all the signals which we catch is Core, so
+  // this is the end of us.
+  signal(sig, SIG_DFL);
+}
+
+struct ThreadArgument {
+  pid_t pid;  // the crashing process
+  ExceptionHandler* handler;
+  const void* context;  // a CrashContext structure
+  size_t context_size;
+};
+
+// This is the entry function for the cloned process. We are in a compromised
+// context here: see the top of the file.
+// static
+int ExceptionHandler::ThreadEntry(void *arg) {
+  const ThreadArgument *thread_arg = reinterpret_cast<ThreadArgument*>(arg);
+
+  // Block here until the crashing process unblocks us when
+  // we're allowed to use ptrace
+  thread_arg->handler->WaitForContinueSignal();
+
+  return thread_arg->handler->DoDump(thread_arg->pid, thread_arg->context,
+                                     thread_arg->context_size) == false;
+}
+
+// This function runs in a compromised context: see the top of the file.
+// Runs on the crashing thread.
+bool ExceptionHandler::HandleSignal(int sig, siginfo_t* info, void* uc) {
+  if (filter_ && !filter_(callback_context_))
+    return false;
+
+  // Allow ourselves to be dumped if the signal is trusted.
+  bool signal_trusted = info->si_code > 0;
+  bool signal_pid_trusted = info->si_code == SI_USER ||
+      info->si_code == SI_TKILL;
+  if (signal_trusted || (signal_pid_trusted && info->si_pid == getpid())) {
+    sys_prctl(PR_SET_DUMPABLE, 1);
+  }
+  CrashContext context;
+  memcpy(&context.siginfo, info, sizeof(siginfo_t));
+  memcpy(&context.context, uc, sizeof(struct ucontext));
+#if !defined(__ARM_EABI__)
+  // FP state is not part of user ABI on ARM Linux.
+  struct ucontext *uc_ptr = (struct ucontext*)uc;
+  if (uc_ptr->uc_mcontext.fpregs) {
+    memcpy(&context.float_state,
+           uc_ptr->uc_mcontext.fpregs,
+           sizeof(context.float_state));
+  }
+#endif
+  context.tid = syscall(__NR_gettid);
+  if (crash_handler_ != NULL) {
+    if (crash_handler_(&context, sizeof(context),
+                       callback_context_)) {
+      return true;
+    }
+  }
+  return GenerateDump(&context);
+}
+
+// This function may run in a compromised context: see the top of the file.
+bool ExceptionHandler::GenerateDump(CrashContext *context) {
+  if (IsOutOfProcess())
+    return crash_generation_client_->RequestDump(context, sizeof(*context));
+
+  static const unsigned kChildStackSize = 8000;
+  PageAllocator allocator;
+  uint8_t* stack = (uint8_t*) allocator.Alloc(kChildStackSize);
+  if (!stack)
+    return false;
+  // clone() needs the top-most address. (scrub just to be safe)
+  stack += kChildStackSize;
+  my_memset(stack - 16, 0, 16);
+
+  ThreadArgument thread_arg;
+  thread_arg.handler = this;
+  thread_arg.pid = getpid();
+  thread_arg.context = context;
+  thread_arg.context_size = sizeof(*context);
+
+  // We need to explicitly enable ptrace of parent processes on some
+  // kernels, but we need to know the PID of the cloned process before we
+  // can do this. Create a pipe here which we can use to block the
+  // cloned process after creating it, until we have explicitly enabled ptrace
+  if(sys_pipe(fdes) == -1) {
+    // Creating the pipe failed. We'll log an error but carry on anyway,
+    // as we'll probably still get a useful crash report. All that will happen
+    // is the write() and read() calls will fail with EBADF
+    static const char no_pipe_msg[] = "ExceptionHandler::GenerateDump \
+                                       sys_pipe failed:";
+    sys_write(2, no_pipe_msg, sizeof(no_pipe_msg) - 1);
+    sys_write(2, strerror(errno), strlen(strerror(errno)));
+    sys_write(2, "\n", 1);
+  }
+
+  const pid_t child = sys_clone(
+      ThreadEntry, stack, CLONE_FILES | CLONE_FS | CLONE_UNTRACED,
+      &thread_arg, NULL, NULL, NULL);
+  int r, status;
+  // Allow the child to ptrace us
+  prctl(PR_SET_PTRACER, child, 0, 0, 0);
+  SendContinueSignalToChild();
+  do {
+    r = sys_waitpid(child, &status, __WALL);
+  } while (r == -1 && errno == EINTR);
+
+  sys_close(fdes[0]);
+  sys_close(fdes[1]);
+
+  if (r == -1) {
+    static const char msg[] = "ExceptionHandler::GenerateDump waitpid failed:";
+    sys_write(2, msg, sizeof(msg) - 1);
+    sys_write(2, strerror(errno), strlen(strerror(errno)));
+    sys_write(2, "\n", 1);
+  }
+
+  bool success = r != -1 && WIFEXITED(status) && WEXITSTATUS(status) == 0;
+
+  if (callback_)
+    success = callback_(dump_path_c_, next_minidump_id_c_,
+                        callback_context_, success);
+
+  return success;
+}
+
+// This function runs in a compromised context: see the top of the file.
+void ExceptionHandler::SendContinueSignalToChild() {
+  static const char okToContinueMessage = 'a';
+  int r;
+  r = HANDLE_EINTR(sys_write(fdes[1], &okToContinueMessage, sizeof(char)));
+  if(r == -1) {
+    static const char msg[] = "ExceptionHandler::SendContinueSignalToChild \
+                               sys_write failed:";
+    sys_write(2, msg, sizeof(msg) - 1);
+    sys_write(2, strerror(errno), strlen(strerror(errno)));
+    sys_write(2, "\n", 1);
+  }
+}
+
+// This function runs in a compromised context: see the top of the file.
+// Runs on the cloned process.
+void ExceptionHandler::WaitForContinueSignal() {
+  int r;
+  char receivedMessage;
+  r = HANDLE_EINTR(sys_read(fdes[0], &receivedMessage, sizeof(char)));
+  if(r == -1) {
+    static const char msg[] = "ExceptionHandler::WaitForContinueSignal \
+                               sys_read failed:";
+    sys_write(2, msg, sizeof(msg) - 1);
+    sys_write(2, strerror(errno), strlen(strerror(errno)));
+    sys_write(2, "\n", 1);
+  }
+}
+
+// This function runs in a compromised context: see the top of the file.
+// Runs on the cloned process.
+bool ExceptionHandler::DoDump(pid_t crashing_process, const void* context,
+                              size_t context_size) {
+  return google_breakpad::WriteMinidump(next_minidump_path_c_,
+                                        crashing_process,
+                                        context,
+                                        context_size,
+                                        mapping_list_);
+}
+
+// static
+bool ExceptionHandler::WriteMinidump(const std::string &dump_path,
+                                     MinidumpCallback callback,
+                                     void* callback_context) {
+  ExceptionHandler eh(dump_path, NULL, callback, callback_context, false);
+  return eh.WriteMinidump();
+}
+
+bool ExceptionHandler::WriteMinidump() {
+#if !defined(__ARM_EABI__)
+  // Allow ourselves to be dumped.
+  sys_prctl(PR_SET_DUMPABLE, 1);
+
+  CrashContext context;
+  int getcontext_result = getcontext(&context.context);
+  if (getcontext_result)
+    return false;
+  memcpy(&context.float_state, context.context.uc_mcontext.fpregs,
+         sizeof(context.float_state));
+  context.tid = sys_gettid();
+
+  bool success = GenerateDump(&context);
+  UpdateNextID();
+  return success;
+#else
+  return false;
+#endif  // !defined(__ARM_EABI__)
+}
+
+void ExceptionHandler::AddMappingInfo(const std::string& name,
+                                      const u_int8_t identifier[sizeof(MDGUID)],
+                                      uintptr_t start_address,
+                                      size_t mapping_size,
+                                      size_t file_offset) {
+  MappingInfo info;
+  info.start_addr = start_address;
+  info.size = mapping_size;
+  info.offset = file_offset;
+  strncpy(info.name, name.c_str(), std::min(name.size(), sizeof(info)));
+
+  MappingEntry mapping;
+  mapping.first = info;
+  memcpy(mapping.second, identifier, sizeof(MDGUID));
+  mapping_list_.push_back(mapping);
+}
+
+}  // namespace google_breakpad

thirdparty/breakpad/client/linux/handler/exception_handler.h

@@ -0,0 +1,259 @@
+// Copyright (c) 2010 Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CLIENT_LINUX_HANDLER_EXCEPTION_HANDLER_H_
+#define CLIENT_LINUX_HANDLER_EXCEPTION_HANDLER_H_
+
+#include <string>
+#include <vector>
+
+#include <pthread.h>
+#include <signal.h>
+#include <stdint.h>
+#include <stdio.h>
+
+#if defined(__ANDROID__)
+#include "client/linux/android_ucontext.h"
+#endif
+#include "client/linux/crash_generation/crash_generation_client.h"
+#include "client/linux/minidump_writer/minidump_writer.h"
+#include "google_breakpad/common/minidump_format.h"
+#include "processor/scoped_ptr.h"
+
+struct sigaction;
+
+namespace google_breakpad {
+
+class ExceptionHandler;
+
+// ExceptionHandler
+//
+// ExceptionHandler can write a minidump file when an exception occurs,
+// or when WriteMinidump() is called explicitly by your program.
+//
+// To have the exception handler write minidumps when an uncaught exception
+// (crash) occurs, you should create an instance early in the execution
+// of your program, and keep it around for the entire time you want to
+// have crash handling active (typically, until shutdown).
+// (NOTE): There should be only be one this kind of exception handler
+// object per process.
+//
+// If you want to write minidumps without installing the exception handler,
+// you can create an ExceptionHandler with install_handler set to false,
+// then call WriteMinidump.  You can also use this technique if you want to
+// use different minidump callbacks for different call sites.
+//
+// In either case, a callback function is called when a minidump is written,
+// which receives the unqiue id of the minidump.  The caller can use this
+// id to collect and write additional application state, and to launch an
+// external crash-reporting application.
+//
+// Caller should try to make the callbacks as crash-friendly as possible,
+// it should avoid use heap memory allocation as much as possible.
+class ExceptionHandler {
+ public:
+  // A callback function to run before Breakpad performs any substantial
+  // processing of an exception.  A FilterCallback is called before writing
+  // a minidump.  context is the parameter supplied by the user as
+  // callback_context when the handler was created.
+  //
+  // If a FilterCallback returns true, Breakpad will continue processing,
+  // attempting to write a minidump.  If a FilterCallback returns false,
+  // Breakpad  will immediately report the exception as unhandled without
+  // writing a minidump, allowing another handler the opportunity to handle it.
+  typedef bool (*FilterCallback)(void *context);
+
+  // A callback function to run after the minidump has been written.
+  // minidump_id is a unique id for the dump, so the minidump
+  // file is <dump_path>\<minidump_id>.dmp.  context is the parameter supplied
+  // by the user as callback_context when the handler was created.  succeeded
+  // indicates whether a minidump file was successfully written.
+  //
+  // If an exception occurred and the callback returns true, Breakpad will
+  // treat the exception as fully-handled, suppressing any other handlers from
+  // being notified of the exception.  If the callback returns false, Breakpad
+  // will treat the exception as unhandled, and allow another handler to handle
+  // it. If there are no other handlers, Breakpad will report the exception to
+  // the system as unhandled, allowing a debugger or native crash dialog the
+  // opportunity to handle the exception.  Most callback implementations
+  // should normally return the value of |succeeded|, or when they wish to
+  // not report an exception of handled, false.  Callbacks will rarely want to
+  // return true directly (unless |succeeded| is true).
+  typedef bool (*MinidumpCallback)(const char *dump_path,
+                                   const char *minidump_id,
+                                   void *context,
+                                   bool succeeded);
+
+  // In certain cases, a user may wish to handle the generation of the minidump
+  // themselves. In this case, they can install a handler callback which is
+  // called when a crash has occurred. If this function returns true, no other
+  // processing of occurs and the process will shortly be crashed. If this
+  // returns false, the normal processing continues.
+  typedef bool (*HandlerCallback)(const void* crash_context,
+                                  size_t crash_context_size,
+                                  void* context);
+
+  // Creates a new ExceptionHandler instance to handle writing minidumps.
+  // Before writing a minidump, the optional filter callback will be called.
+  // Its return value determines whether or not Breakpad should write a
+  // minidump.  Minidump files will be written to dump_path, and the optional
+  // callback is called after writing the dump file, as described above.
+  // If install_handler is true, then a minidump will be written whenever
+  // an unhandled exception occurs.  If it is false, minidumps will only
+  // be written when WriteMinidump is called.
+  ExceptionHandler(const std::string &dump_path,
+                   FilterCallback filter, MinidumpCallback callback,
+                   void *callback_context,
+                   bool install_handler);
+
+  // Creates a new ExceptionHandler instance that can attempt to
+  // perform out-of-process dump generation if server_fd is valid. If
+  // server_fd is invalid, in-process dump generation will be
+  // used. See the above ctor for a description of the other
+  // parameters.
+  ExceptionHandler(const std::string& dump_path,
+                   FilterCallback filter, MinidumpCallback callback,
+                   void* callback_context,
+                   bool install_handler,
+                   const int server_fd);
+
+  ~ExceptionHandler();
+
+  // Get and set the minidump path.
+  std::string dump_path() const { return dump_path_; }
+  void set_dump_path(const std::string &dump_path) {
+    dump_path_ = dump_path;
+    dump_path_c_ = dump_path_.c_str();
+    UpdateNextID();
+  }
+
+  void set_crash_handler(HandlerCallback callback) {
+    crash_handler_ = callback;
+  }
+
+  // Writes a minidump immediately.  This can be used to capture the
+  // execution state independently of a crash.  Returns true on success.
+  bool WriteMinidump();
+
+  // Convenience form of WriteMinidump which does not require an
+  // ExceptionHandler instance.
+  static bool WriteMinidump(const std::string &dump_path,
+                            MinidumpCallback callback,
+                            void *callback_context);
+
+  // This structure is passed to minidump_writer.h:WriteMinidump via an opaque
+  // blob. It shouldn't be needed in any user code.
+  struct CrashContext {
+    siginfo_t siginfo;
+    pid_t tid;  // the crashing thread.
+    struct ucontext context;
+#if !defined(__ARM_EABI__)
+    // #ifdef this out because FP state is not part of user ABI for Linux ARM.
+    struct _libc_fpstate float_state;
+#endif
+  };
+
+  // Returns whether out-of-process dump generation is used or not.
+  bool IsOutOfProcess() const {
+      return crash_generation_client_.get() != NULL;
+  }
+
+  // Add information about a memory mapping. This can be used if
+  // a custom library loader is used that maps things in a way
+  // that the linux dumper can't handle by reading the maps file.
+  void AddMappingInfo(const std::string& name,
+                      const u_int8_t identifier[sizeof(MDGUID)],
+                      uintptr_t start_address,
+                      size_t mapping_size,
+                      size_t file_offset);
+
+ private:
+  void Init(const std::string &dump_path,
+            const int server_fd);
+  bool InstallHandlers();
+  void UninstallHandlers();
+  void PreresolveSymbols();
+  bool GenerateDump(CrashContext *context);
+  void SendContinueSignalToChild();
+  void WaitForContinueSignal();
+
+  void UpdateNextID();
+  static void SignalHandler(int sig, siginfo_t* info, void* uc);
+  bool HandleSignal(int sig, siginfo_t* info, void* uc);
+  static int ThreadEntry(void* arg);
+  bool DoDump(pid_t crashing_process, const void* context,
+              size_t context_size);
+
+  const FilterCallback filter_;
+  const MinidumpCallback callback_;
+  void* const callback_context_;
+
+  scoped_ptr<CrashGenerationClient> crash_generation_client_;
+
+  std::string dump_path_;
+  std::string next_minidump_path_;
+  std::string next_minidump_id_;
+
+  // Pointers to C-string representations of the above. These are set
+  // when the above are set so we can avoid calling c_str during
+  // an exception.
+  const char* dump_path_c_;
+  const char* next_minidump_path_c_;
+  const char* next_minidump_id_c_;
+
+  const bool handler_installed_;
+  void* signal_stack;  // the handler stack.
+  HandlerCallback crash_handler_;
+
+  // The global exception handler stack. This is need becuase there may exist
+  // multiple ExceptionHandler instances in a process. Each will have itself
+  // registered in this stack.
+  static std::vector<ExceptionHandler*> *handler_stack_;
+  // The index of the handler that should handle the next exception.
+  static unsigned handler_stack_index_;
+  static pthread_mutex_t handler_stack_mutex_;
+
+  // A vector of the old signal handlers.
+  std::vector<std::pair<int, struct sigaction *> > old_handlers_;
+
+  // We need to explicitly enable ptrace of parent processes on some
+  // kernels, but we need to know the PID of the cloned process before we
+  // can do this. We create a pipe which we can use to block the
+  // cloned process after creating it, until we have explicitly enabled 
+  // ptrace. This is used to store the file descriptors for the pipe
+  int fdes[2];
+
+  // Callers can add extra info about mappings for cases where the
+  // dumper code cannot extract enough information from /proc/<pid>/maps.
+  MappingList mapping_list_;
+};
+
+}  // namespace google_breakpad
+
+#endif  // CLIENT_LINUX_HANDLER_EXCEPTION_HANDLER_H_

thirdparty/breakpad/client/linux/handler/exception_handler_unittest.cc

@@ -0,0 +1,775 @@
+// Copyright (c) 2010 Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include <stdint.h>
+#include <unistd.h>
+#include <signal.h>
+#include <sys/mman.h>
+#include <sys/poll.h>
+#include <sys/socket.h>
+#include <sys/uio.h>
+#include <sys/wait.h>
+
+#include <string>
+
+#include "breakpad_googletest_includes.h"
+#include "client/linux/handler/exception_handler.h"
+#include "client/linux/minidump_writer/minidump_writer.h"
+#include "common/linux/eintr_wrapper.h"
+#include "common/linux/file_id.h"
+#include "common/linux/linux_libc_support.h"
+#include "third_party/lss/linux_syscall_support.h"
+#include "google_breakpad/processor/minidump.h"
+
+using namespace google_breakpad;
+
+#if !defined(__ANDROID__)
+#define TEMPDIR "/tmp"
+#else
+#define TEMPDIR "/data/local/tmp"
+#endif
+
+// Length of a formatted GUID string =
+// sizeof(MDGUID) * 2 + 4 (for dashes) + 1 (null terminator)
+const int kGUIDStringSize = 37;
+
+static void sigchld_handler(int signo) { }
+
+class ExceptionHandlerTest : public ::testing::Test {
+ protected:
+  void SetUp() {
+    // We need to be able to wait for children, so SIGCHLD cannot be SIG_IGN.
+    struct sigaction sa;
+    memset(&sa, 0, sizeof(sa));
+    sa.sa_handler = sigchld_handler;
+    ASSERT_NE(sigaction(SIGCHLD, &sa, &old_action), -1);
+  }
+
+  void TearDown() {
+    sigaction(SIGCHLD, &old_action, NULL);
+  }
+
+  struct sigaction old_action;
+};
+
+TEST(ExceptionHandlerTest, Simple) {
+  ExceptionHandler handler(TEMPDIR, NULL, NULL, NULL, true);
+}
+
+static bool DoneCallback(const char* dump_path,
+                         const char* minidump_id,
+                         void* context,
+                         bool succeeded) {
+  if (!succeeded)
+    return succeeded;
+
+  int fd = (intptr_t) context;
+  uint32_t len = my_strlen(minidump_id);
+  HANDLE_EINTR(sys_write(fd, &len, sizeof(len)));
+  HANDLE_EINTR(sys_write(fd, minidump_id, len));
+  sys_close(fd);
+
+  return true;
+}
+
+TEST(ExceptionHandlerTest, ChildCrash) {
+  int fds[2];
+  ASSERT_NE(pipe(fds), -1);
+
+  const pid_t child = fork();
+  if (child == 0) {
+    close(fds[0]);
+    ExceptionHandler handler(TEMPDIR, NULL, DoneCallback, (void*) fds[1],
+                             true);
+    *reinterpret_cast<volatile int*>(NULL) = 0;
+  }
+  close(fds[1]);
+
+  int status;
+  ASSERT_NE(HANDLE_EINTR(waitpid(child, &status, 0)), -1);
+  ASSERT_TRUE(WIFSIGNALED(status));
+  ASSERT_EQ(WTERMSIG(status), SIGSEGV);
+
+  struct pollfd pfd;
+  memset(&pfd, 0, sizeof(pfd));
+  pfd.fd = fds[0];
+  pfd.events = POLLIN | POLLERR;
+
+  const int r = HANDLE_EINTR(poll(&pfd, 1, 0));
+  ASSERT_EQ(r, 1);
+  ASSERT_TRUE(pfd.revents & POLLIN);
+
+  uint32_t len;
+  ASSERT_EQ(read(fds[0], &len, sizeof(len)), (ssize_t)sizeof(len));
+  ASSERT_LT(len, (uint32_t)2048);
+  char* filename = reinterpret_cast<char*>(malloc(len + 1));
+  ASSERT_EQ(read(fds[0], filename, len), len);
+  filename[len] = 0;
+  close(fds[0]);
+
+  const std::string minidump_filename = std::string(TEMPDIR) + "/" + filename +
+                                        ".dmp";
+
+  struct stat st;
+  ASSERT_EQ(stat(minidump_filename.c_str(), &st), 0);
+  ASSERT_GT(st.st_size, 0u);
+  unlink(minidump_filename.c_str());
+}
+
+// Test that memory around the instruction pointer is written
+// to the dump as a MinidumpMemoryRegion.
+TEST(ExceptionHandlerTest, InstructionPointerMemory) {
+  int fds[2];
+  ASSERT_NE(pipe(fds), -1);
+
+  // These are defined here so the parent can use them to check the
+  // data from the minidump afterwards.
+  const u_int32_t kMemorySize = 256;  // bytes
+  const int kOffset = kMemorySize / 2;
+  // This crashes with SIGILL on x86/x86-64/arm.
+  const unsigned char instructions[] = { 0xff, 0xff, 0xff, 0xff };
+
+  const pid_t child = fork();
+  if (child == 0) {
+    close(fds[0]);
+    ExceptionHandler handler(TEMPDIR, NULL, DoneCallback, (void*) fds[1],
+                             true);
+    // Get some executable memory.
+    char* memory =
+      reinterpret_cast<char*>(mmap(NULL,
+                                   kMemorySize,
+                                   PROT_READ | PROT_WRITE | PROT_EXEC,
+                                   MAP_PRIVATE | MAP_ANON,
+                                   -1,
+                                   0));
+    if (!memory)
+      exit(0);
+
+    // Write some instructions that will crash. Put them in the middle
+    // of the block of memory, because the minidump should contain 128
+    // bytes on either side of the instruction pointer.
+    memcpy(memory + kOffset, instructions, sizeof(instructions));
+
+    // Now execute the instructions, which should crash.
+    typedef void (*void_function)(void);
+    void_function memory_function =
+      reinterpret_cast<void_function>(memory + kOffset);
+    memory_function();
+  }
+  close(fds[1]);
+
+  int status;
+  ASSERT_NE(HANDLE_EINTR(waitpid(child, &status, 0)), -1);
+  ASSERT_TRUE(WIFSIGNALED(status));
+  ASSERT_EQ(WTERMSIG(status), SIGILL);
+
+  struct pollfd pfd;
+  memset(&pfd, 0, sizeof(pfd));
+  pfd.fd = fds[0];
+  pfd.events = POLLIN | POLLERR;
+
+  const int r = HANDLE_EINTR(poll(&pfd, 1, 0));
+  ASSERT_EQ(r, 1);
+  ASSERT_TRUE(pfd.revents & POLLIN);
+
+  uint32_t len;
+  ASSERT_EQ(read(fds[0], &len, sizeof(len)), (ssize_t)sizeof(len));
+  ASSERT_LT(len, (uint32_t)2048);
+  char* filename = reinterpret_cast<char*>(malloc(len + 1));
+  ASSERT_EQ(read(fds[0], filename, len), len);
+  filename[len] = 0;
+  close(fds[0]);
+
+  const std::string minidump_filename = std::string(TEMPDIR) + "/" + filename +
+                                        ".dmp";
+
+  struct stat st;
+  ASSERT_EQ(stat(minidump_filename.c_str(), &st), 0);
+  ASSERT_GT(st.st_size, 0u);
+
+  // Read the minidump. Locate the exception record and the
+  // memory list, and then ensure that there is a memory region
+  // in the memory list that covers the instruction pointer from
+  // the exception record.
+  Minidump minidump(minidump_filename);
+  ASSERT_TRUE(minidump.Read());
+
+  MinidumpException* exception = minidump.GetException();
+  MinidumpMemoryList* memory_list = minidump.GetMemoryList();
+  ASSERT_TRUE(exception);
+  ASSERT_TRUE(memory_list);
+  ASSERT_LT(0, memory_list->region_count());
+
+  MinidumpContext* context = exception->GetContext();
+  ASSERT_TRUE(context);
+
+  u_int64_t instruction_pointer;
+  switch (context->GetContextCPU()) {
+  case MD_CONTEXT_X86:
+    instruction_pointer = context->GetContextX86()->eip;
+    break;
+  case MD_CONTEXT_AMD64:
+    instruction_pointer = context->GetContextAMD64()->rip;
+    break;
+  case MD_CONTEXT_ARM:
+    instruction_pointer = context->GetContextARM()->iregs[15];
+    break;
+  default:
+    FAIL() << "Unknown context CPU: " << context->GetContextCPU();
+    break;
+  }
+
+  MinidumpMemoryRegion* region =
+    memory_list->GetMemoryRegionForAddress(instruction_pointer);
+  ASSERT_TRUE(region);
+
+  EXPECT_EQ(kMemorySize, region->GetSize());
+  const u_int8_t* bytes = region->GetMemory();
+  ASSERT_TRUE(bytes);
+
+  u_int8_t prefix_bytes[kOffset];
+  u_int8_t suffix_bytes[kMemorySize - kOffset - sizeof(instructions)];
+  memset(prefix_bytes, 0, sizeof(prefix_bytes));
+  memset(suffix_bytes, 0, sizeof(suffix_bytes));
+  EXPECT_TRUE(memcmp(bytes, prefix_bytes, sizeof(prefix_bytes)) == 0);
+  EXPECT_TRUE(memcmp(bytes + kOffset, instructions, sizeof(instructions)) == 0);
+  EXPECT_TRUE(memcmp(bytes + kOffset + sizeof(instructions),
+                     suffix_bytes, sizeof(suffix_bytes)) == 0);
+
+  unlink(minidump_filename.c_str());
+  free(filename);
+}
+
+// Test that the memory region around the instruction pointer is
+// bounded correctly on the low end.
+TEST(ExceptionHandlerTest, InstructionPointerMemoryMinBound) {
+  int fds[2];
+  ASSERT_NE(pipe(fds), -1);
+
+  // These are defined here so the parent can use them to check the
+  // data from the minidump afterwards.
+  const u_int32_t kMemorySize = 256;  // bytes
+  const int kOffset = 0;
+  // This crashes with SIGILL on x86/x86-64/arm.
+  const unsigned char instructions[] = { 0xff, 0xff, 0xff, 0xff };
+
+  const pid_t child = fork();
+  if (child == 0) {
+    close(fds[0]);
+    ExceptionHandler handler(TEMPDIR, NULL, DoneCallback, (void*) fds[1],
+                             true);
+    // Get some executable memory.
+    char* memory =
+      reinterpret_cast<char*>(mmap(NULL,
+                                   kMemorySize,
+                                   PROT_READ | PROT_WRITE | PROT_EXEC,
+                                   MAP_PRIVATE | MAP_ANON,
+                                   -1,
+                                   0));
+    if (!memory)
+      exit(0);
+
+    // Write some instructions that will crash. Put them in the middle
+    // of the block of memory, because the minidump should contain 128
+    // bytes on either side of the instruction pointer.
+    memcpy(memory + kOffset, instructions, sizeof(instructions));
+
+    // Now execute the instructions, which should crash.
+    typedef void (*void_function)(void);
+    void_function memory_function =
+      reinterpret_cast<void_function>(memory + kOffset);
+    memory_function();
+  }
+  close(fds[1]);
+
+  int status;
+  ASSERT_NE(HANDLE_EINTR(waitpid(child, &status, 0)), -1);
+  ASSERT_TRUE(WIFSIGNALED(status));
+  ASSERT_EQ(WTERMSIG(status), SIGILL);
+
+  struct pollfd pfd;
+  memset(&pfd, 0, sizeof(pfd));
+  pfd.fd = fds[0];
+  pfd.events = POLLIN | POLLERR;
+
+  const int r = HANDLE_EINTR(poll(&pfd, 1, 0));
+  ASSERT_EQ(r, 1);
+  ASSERT_TRUE(pfd.revents & POLLIN);
+
+  uint32_t len;
+  ASSERT_EQ(read(fds[0], &len, sizeof(len)), (ssize_t)sizeof(len));
+  ASSERT_LT(len, (uint32_t)2048);
+  char* filename = reinterpret_cast<char*>(malloc(len + 1));
+  ASSERT_EQ(read(fds[0], filename, len), len);
+  filename[len] = 0;
+  close(fds[0]);
+
+  const std::string minidump_filename = std::string(TEMPDIR) + "/" + filename +
+                                        ".dmp";
+
+  struct stat st;
+  ASSERT_EQ(stat(minidump_filename.c_str(), &st), 0);
+  ASSERT_GT(st.st_size, 0u);
+
+  // Read the minidump. Locate the exception record and the
+  // memory list, and then ensure that there is a memory region
+  // in the memory list that covers the instruction pointer from
+  // the exception record.
+  Minidump minidump(minidump_filename);
+  ASSERT_TRUE(minidump.Read());
+
+  MinidumpException* exception = minidump.GetException();
+  MinidumpMemoryList* memory_list = minidump.GetMemoryList();
+  ASSERT_TRUE(exception);
+  ASSERT_TRUE(memory_list);
+  ASSERT_LT(0, memory_list->region_count());
+
+  MinidumpContext* context = exception->GetContext();
+  ASSERT_TRUE(context);
+
+  u_int64_t instruction_pointer;
+  switch (context->GetContextCPU()) {
+  case MD_CONTEXT_X86:
+    instruction_pointer = context->GetContextX86()->eip;
+    break;
+  case MD_CONTEXT_AMD64:
+    instruction_pointer = context->GetContextAMD64()->rip;
+    break;
+  case MD_CONTEXT_ARM:
+    instruction_pointer = context->GetContextARM()->iregs[15];
+    break;
+  default:
+    FAIL() << "Unknown context CPU: " << context->GetContextCPU();
+    break;
+  }
+
+  MinidumpMemoryRegion* region =
+    memory_list->GetMemoryRegionForAddress(instruction_pointer);
+  ASSERT_TRUE(region);
+
+  EXPECT_EQ(kMemorySize / 2, region->GetSize());
+  const u_int8_t* bytes = region->GetMemory();
+  ASSERT_TRUE(bytes);
+
+  u_int8_t suffix_bytes[kMemorySize / 2 - sizeof(instructions)];
+  memset(suffix_bytes, 0, sizeof(suffix_bytes));
+  EXPECT_TRUE(memcmp(bytes + kOffset, instructions, sizeof(instructions)) == 0);
+  EXPECT_TRUE(memcmp(bytes + kOffset + sizeof(instructions),
+                     suffix_bytes, sizeof(suffix_bytes)) == 0);
+
+  unlink(minidump_filename.c_str());
+  free(filename);
+}
+
+// Test that the memory region around the instruction pointer is
+// bounded correctly on the high end.
+TEST(ExceptionHandlerTest, InstructionPointerMemoryMaxBound) {
+  int fds[2];
+  ASSERT_NE(pipe(fds), -1);
+
+  // These are defined here so the parent can use them to check the
+  // data from the minidump afterwards.
+  // Use 4k here because the OS will hand out a single page even
+  // if a smaller size is requested, and this test wants to
+  // test the upper bound of the memory range.
+  const u_int32_t kMemorySize = 4096;  // bytes
+  // This crashes with SIGILL on x86/x86-64/arm.
+  const unsigned char instructions[] = { 0xff, 0xff, 0xff, 0xff };
+  const int kOffset = kMemorySize - sizeof(instructions);
+
+  const pid_t child = fork();
+  if (child == 0) {
+    close(fds[0]);
+    ExceptionHandler handler(TEMPDIR, NULL, DoneCallback, (void*) fds[1],
+                             true);
+    // Get some executable memory.
+    char* memory =
+      reinterpret_cast<char*>(mmap(NULL,
+                                   kMemorySize,
+                                   PROT_READ | PROT_WRITE | PROT_EXEC,
+                                   MAP_PRIVATE | MAP_ANON,
+                                   -1,
+                                   0));
+    if (!memory)
+      exit(0);
+
+    // Write some instructions that will crash. Put them in the middle
+    // of the block of memory, because the minidump should contain 128
+    // bytes on either side of the instruction pointer.
+    memcpy(memory + kOffset, instructions, sizeof(instructions));
+
+    // Now execute the instructions, which should crash.
+    typedef void (*void_function)(void);
+    void_function memory_function =
+      reinterpret_cast<void_function>(memory + kOffset);
+    memory_function();
+  }
+  close(fds[1]);
+
+  int status;
+  ASSERT_NE(HANDLE_EINTR(waitpid(child, &status, 0)), -1);
+  ASSERT_TRUE(WIFSIGNALED(status));
+  ASSERT_EQ(WTERMSIG(status), SIGILL);
+
+  struct pollfd pfd;
+  memset(&pfd, 0, sizeof(pfd));
+  pfd.fd = fds[0];
+  pfd.events = POLLIN | POLLERR;
+
+  const int r = HANDLE_EINTR(poll(&pfd, 1, 0));
+  ASSERT_EQ(r, 1);
+  ASSERT_TRUE(pfd.revents & POLLIN);
+
+  uint32_t len;
+  ASSERT_EQ(read(fds[0], &len, sizeof(len)), (ssize_t)sizeof(len));
+  ASSERT_LT(len, (uint32_t)2048);
+  char* filename = reinterpret_cast<char*>(malloc(len + 1));
+  ASSERT_EQ(read(fds[0], filename, len), len);
+  filename[len] = 0;
+  close(fds[0]);
+
+  const std::string minidump_filename = std::string(TEMPDIR) + "/" + filename +
+                                        ".dmp";
+
+  struct stat st;
+  ASSERT_EQ(stat(minidump_filename.c_str(), &st), 0);
+  ASSERT_GT(st.st_size, 0u);
+
+  // Read the minidump. Locate the exception record and the
+  // memory list, and then ensure that there is a memory region
+  // in the memory list that covers the instruction pointer from
+  // the exception record.
+  Minidump minidump(minidump_filename);
+  ASSERT_TRUE(minidump.Read());
+
+  MinidumpException* exception = minidump.GetException();
+  MinidumpMemoryList* memory_list = minidump.GetMemoryList();
+  ASSERT_TRUE(exception);
+  ASSERT_TRUE(memory_list);
+  ASSERT_LT(0, memory_list->region_count());
+
+  MinidumpContext* context = exception->GetContext();
+  ASSERT_TRUE(context);
+
+  u_int64_t instruction_pointer;
+  switch (context->GetContextCPU()) {
+  case MD_CONTEXT_X86:
+    instruction_pointer = context->GetContextX86()->eip;
+    break;
+  case MD_CONTEXT_AMD64:
+    instruction_pointer = context->GetContextAMD64()->rip;
+    break;
+  case MD_CONTEXT_ARM:
+    instruction_pointer = context->GetContextARM()->iregs[15];
+    break;
+  default:
+    FAIL() << "Unknown context CPU: " << context->GetContextCPU();
+    break;
+  }
+
+  MinidumpMemoryRegion* region =
+    memory_list->GetMemoryRegionForAddress(instruction_pointer);
+  ASSERT_TRUE(region);
+
+  const size_t kPrefixSize = 128;  // bytes
+  EXPECT_EQ(kPrefixSize + sizeof(instructions), region->GetSize());
+  const u_int8_t* bytes = region->GetMemory();
+  ASSERT_TRUE(bytes);
+
+  u_int8_t prefix_bytes[kPrefixSize];
+  memset(prefix_bytes, 0, sizeof(prefix_bytes));
+  EXPECT_TRUE(memcmp(bytes, prefix_bytes, sizeof(prefix_bytes)) == 0);
+  EXPECT_TRUE(memcmp(bytes + kPrefixSize,
+                     instructions, sizeof(instructions)) == 0);
+
+  unlink(minidump_filename.c_str());
+  free(filename);
+}
+
+// Ensure that an extra memory block doesn't get added when the
+// instruction pointer is not in mapped memory.
+TEST(ExceptionHandlerTest, InstructionPointerMemoryNullPointer) {
+  int fds[2];
+  ASSERT_NE(pipe(fds), -1);
+
+
+  const pid_t child = fork();
+  if (child == 0) {
+    close(fds[0]);
+    ExceptionHandler handler(TEMPDIR, NULL, DoneCallback, (void*) fds[1],
+                             true);
+    // Try calling a NULL pointer.
+    typedef void (*void_function)(void);
+    void_function memory_function =
+      reinterpret_cast<void_function>(NULL);
+    memory_function();
+  }
+  close(fds[1]);
+
+  int status;
+  ASSERT_NE(HANDLE_EINTR(waitpid(child, &status, 0)), -1);
+  ASSERT_TRUE(WIFSIGNALED(status));
+  ASSERT_EQ(WTERMSIG(status), SIGSEGV);
+
+  struct pollfd pfd;
+  memset(&pfd, 0, sizeof(pfd));
+  pfd.fd = fds[0];
+  pfd.events = POLLIN | POLLERR;
+
+  const int r = HANDLE_EINTR(poll(&pfd, 1, 0));
+  ASSERT_EQ(r, 1);
+  ASSERT_TRUE(pfd.revents & POLLIN);
+
+  uint32_t len;
+  ASSERT_EQ(read(fds[0], &len, sizeof(len)), (ssize_t)sizeof(len));
+  ASSERT_LT(len, (uint32_t)2048);
+  char* filename = reinterpret_cast<char*>(malloc(len + 1));
+  ASSERT_EQ(read(fds[0], filename, len), len);
+  filename[len] = 0;
+  close(fds[0]);
+
+  const std::string minidump_filename = std::string(TEMPDIR) + "/" + filename +
+                                        ".dmp";
+
+  struct stat st;
+  ASSERT_EQ(stat(minidump_filename.c_str(), &st), 0);
+  ASSERT_GT(st.st_size, 0u);
+
+  // Read the minidump. Locate the exception record and the
+  // memory list, and then ensure that there is a memory region
+  // in the memory list that covers the instruction pointer from
+  // the exception record.
+  Minidump minidump(minidump_filename);
+  ASSERT_TRUE(minidump.Read());
+
+  MinidumpException* exception = minidump.GetException();
+  MinidumpMemoryList* memory_list = minidump.GetMemoryList();
+  ASSERT_TRUE(exception);
+  ASSERT_TRUE(memory_list);
+  ASSERT_EQ((unsigned int)1, memory_list->region_count());
+
+  unlink(minidump_filename.c_str());
+  free(filename);
+}
+
+static bool SimpleCallback(const char* dump_path,
+                           const char* minidump_id,
+                           void* context,
+                           bool succeeded) {
+  if (!succeeded)
+    return succeeded;
+
+  string* minidump_file = reinterpret_cast<string*>(context);
+  minidump_file->append(dump_path);
+  minidump_file->append("/");
+  minidump_file->append(minidump_id);
+  minidump_file->append(".dmp");
+  return true;
+}
+
+// Test that anonymous memory maps can be annotated with names and IDs.
+TEST(ExceptionHandlerTest, ModuleInfo) {
+  // These are defined here so the parent can use them to check the
+  // data from the minidump afterwards.
+  const u_int32_t kMemorySize = sysconf(_SC_PAGESIZE);
+  const char* kMemoryName = "a fake module";
+  const u_int8_t kModuleGUID[sizeof(MDGUID)] = {
+    0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
+    0x88, 0x99, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF
+  };
+  char module_identifier_buffer[kGUIDStringSize];
+  FileID::ConvertIdentifierToString(kModuleGUID,
+                                    module_identifier_buffer,
+                                    sizeof(module_identifier_buffer));
+  string module_identifier(module_identifier_buffer);
+  // Strip out dashes
+  size_t pos;
+  while ((pos = module_identifier.find('-')) != string::npos) {
+    module_identifier.erase(pos, 1);
+  }
+  // And append a zero, because module IDs include an "age" field
+  // which is always zero on Linux.
+  module_identifier += "0";
+
+  // Get some memory.
+  char* memory =
+    reinterpret_cast<char*>(mmap(NULL,
+                                 kMemorySize,
+                                 PROT_READ | PROT_WRITE,
+                                 MAP_PRIVATE | MAP_ANON,
+                                 -1,
+                                 0));
+  const u_int64_t kMemoryAddress = reinterpret_cast<u_int64_t>(memory);
+  ASSERT_TRUE(memory);
+
+  string minidump_filename;
+  ExceptionHandler handler(TEMPDIR, NULL, SimpleCallback,
+                           (void*)&minidump_filename, true);
+  // Add info about the anonymous memory mapping.
+  handler.AddMappingInfo(kMemoryName,
+                         kModuleGUID,
+                         kMemoryAddress,
+                         kMemorySize,
+                         0);
+  handler.WriteMinidump();
+
+  // Read the minidump. Load the module list, and ensure that
+  // the mmap'ed |memory| is listed with the given module name
+  // and debug ID.
+  Minidump minidump(minidump_filename);
+  ASSERT_TRUE(minidump.Read());
+
+  MinidumpModuleList* module_list = minidump.GetModuleList();
+  ASSERT_TRUE(module_list);
+  const MinidumpModule* module =
+    module_list->GetModuleForAddress(kMemoryAddress);
+  ASSERT_TRUE(module);
+
+  EXPECT_EQ(kMemoryAddress, module->base_address());
+  EXPECT_EQ(kMemorySize, module->size());
+  EXPECT_EQ(kMemoryName, module->code_file());
+  EXPECT_EQ(module_identifier, module->debug_identifier());
+
+  unlink(minidump_filename.c_str());
+}
+
+static const unsigned kControlMsgSize =
+    CMSG_SPACE(sizeof(int)) + CMSG_SPACE(sizeof(struct ucred));
+
+static bool
+CrashHandler(const void* crash_context, size_t crash_context_size,
+             void* context) {
+  const int fd = (intptr_t) context;
+  int fds[2];
+  pipe(fds);
+  struct kernel_msghdr msg = {0};
+  struct kernel_iovec iov;
+  iov.iov_base = const_cast<void*>(crash_context);
+  iov.iov_len = crash_context_size;
+  msg.msg_iov = &iov;
+  msg.msg_iovlen = 1;
+  char cmsg[kControlMsgSize];
+  memset(cmsg, 0, kControlMsgSize);
+  msg.msg_control = cmsg;
+  msg.msg_controllen = sizeof(cmsg);
+
+  struct cmsghdr *hdr = CMSG_FIRSTHDR(&msg);
+  hdr->cmsg_level = SOL_SOCKET;
+  hdr->cmsg_type = SCM_RIGHTS;
+  hdr->cmsg_len = CMSG_LEN(sizeof(int));
+  *((int*) CMSG_DATA(hdr)) = fds[1];
+  hdr = CMSG_NXTHDR((struct msghdr*) &msg, hdr);
+  hdr->cmsg_level = SOL_SOCKET;
+  hdr->cmsg_type = SCM_CREDENTIALS;
+  hdr->cmsg_len = CMSG_LEN(sizeof(struct ucred));
+  struct ucred *cred = reinterpret_cast<struct ucred*>(CMSG_DATA(hdr));
+  cred->uid = getuid();
+  cred->gid = getgid();
+  cred->pid = getpid();
+
+  HANDLE_EINTR(sys_sendmsg(fd, &msg, 0));
+  sys_close(fds[1]);
+
+  char b;
+  HANDLE_EINTR(sys_read(fds[0], &b, 1));
+
+  return true;
+}
+
+TEST(ExceptionHandlerTest, ExternalDumper) {
+  int fds[2];
+  ASSERT_NE(socketpair(AF_UNIX, SOCK_DGRAM, 0, fds), -1);
+  static const int on = 1;
+  setsockopt(fds[0], SOL_SOCKET, SO_PASSCRED, &on, sizeof(on));
+  setsockopt(fds[1], SOL_SOCKET, SO_PASSCRED, &on, sizeof(on));
+
+  const pid_t child = fork();
+  if (child == 0) {
+    close(fds[0]);
+    ExceptionHandler handler("/tmp1", NULL, NULL, (void*) fds[1], true);
+    handler.set_crash_handler(CrashHandler);
+    *reinterpret_cast<volatile int*>(NULL) = 0;
+  }
+  close(fds[1]);
+  struct msghdr msg = {0};
+  struct iovec iov;
+  static const unsigned kCrashContextSize =
+      sizeof(ExceptionHandler::CrashContext);
+  char context[kCrashContextSize];
+  char control[kControlMsgSize];
+  iov.iov_base = context;
+  iov.iov_len = kCrashContextSize;
+  msg.msg_iov = &iov;
+  msg.msg_iovlen = 1;
+  msg.msg_control = control;
+  msg.msg_controllen = kControlMsgSize;
+
+  const ssize_t n = HANDLE_EINTR(recvmsg(fds[0], &msg, 0));
+  ASSERT_EQ(n, kCrashContextSize);
+  ASSERT_EQ(msg.msg_controllen, kControlMsgSize);
+  ASSERT_EQ(msg.msg_flags, 0);
+
+  pid_t crashing_pid = -1;
+  int signal_fd = -1;
+  for (struct cmsghdr *hdr = CMSG_FIRSTHDR(&msg); hdr;
+       hdr = CMSG_NXTHDR(&msg, hdr)) {
+    if (hdr->cmsg_level != SOL_SOCKET)
+      continue;
+    if (hdr->cmsg_type == SCM_RIGHTS) {
+      const unsigned len = hdr->cmsg_len -
+          (((uint8_t*)CMSG_DATA(hdr)) - (uint8_t*)hdr);
+      ASSERT_EQ(len, sizeof(int));
+      signal_fd = *((int *) CMSG_DATA(hdr));
+    } else if (hdr->cmsg_type == SCM_CREDENTIALS) {
+      const struct ucred *cred =
+          reinterpret_cast<struct ucred*>(CMSG_DATA(hdr));
+      crashing_pid = cred->pid;
+    }
+  }
+
+  ASSERT_NE(crashing_pid, -1);
+  ASSERT_NE(signal_fd, -1);
+
+  char templ[] = TEMPDIR "/exception-handler-unittest-XXXXXX";
+  mktemp(templ);
+  ASSERT_TRUE(WriteMinidump(templ, crashing_pid, context,
+                            kCrashContextSize));
+  static const char b = 0;
+  HANDLE_EINTR(write(signal_fd, &b, 1));
+
+  int status;
+  ASSERT_NE(HANDLE_EINTR(waitpid(child, &status, 0)), -1);
+  ASSERT_TRUE(WIFSIGNALED(status));
+  ASSERT_EQ(WTERMSIG(status), SIGSEGV);
+
+  struct stat st;
+  ASSERT_EQ(stat(templ, &st), 0);
+  ASSERT_GT(st.st_size, 0u);
+  unlink(templ);
+}

thirdparty/breakpad/client/linux/minidump_writer/directory_reader.h

@@ -0,0 +1,105 @@
+// Copyright (c) 2009, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CLIENT_LINUX_MINIDUMP_WRITER_DIRECTORY_READER_H_
+#define CLIENT_LINUX_MINIDUMP_WRITER_DIRECTORY_READER_H_
+
+#include <stdint.h>
+#include <unistd.h>
+#include <limits.h>
+#include <assert.h>
+#include <errno.h>
+#include <string.h>
+
+#include "third_party/lss/linux_syscall_support.h"
+
+namespace google_breakpad {
+
+// A class for enumerating a directory without using diropen/readdir or other
+// functions which may allocate memory.
+class DirectoryReader {
+ public:
+  DirectoryReader(int fd)
+      : fd_(fd),
+        buf_used_(0) {
+  }
+
+  // Return the next entry from the directory
+  //   name: (output) the NUL terminated entry name
+  //
+  // Returns true iff successful (false on EOF).
+  //
+  // After calling this, one must call |PopEntry| otherwise you'll get the same
+  // entry over and over.
+  bool GetNextEntry(const char** name) {
+    struct kernel_dirent* const dent =
+      reinterpret_cast<kernel_dirent*>(buf_);
+
+    if (buf_used_ == 0) {
+      // need to read more entries.
+      const int n = sys_getdents(fd_, dent, sizeof(buf_));
+      if (n < 0) {
+        return false;
+      } else if (n == 0) {
+        hit_eof_ = true;
+      } else {
+        buf_used_ += n;
+      }
+    }
+
+    if (buf_used_ == 0 && hit_eof_)
+      return false;
+
+    assert(buf_used_ > 0);
+
+    *name = dent->d_name;
+    return true;
+  }
+
+  void PopEntry() {
+    if (!buf_used_)
+      return;
+
+    const struct kernel_dirent* const dent =
+      reinterpret_cast<kernel_dirent*>(buf_);
+
+    buf_used_ -= dent->d_reclen;
+    memmove(buf_, buf_ + dent->d_reclen, buf_used_);
+  }
+
+ private:
+  const int fd_;
+  bool hit_eof_;
+  unsigned buf_used_;
+  uint8_t buf_[sizeof(struct kernel_dirent) + NAME_MAX + 1];
+};
+
+}  // namespace google_breakpad
+
+#endif  // CLIENT_LINUX_MINIDUMP_WRITER_DIRECTORY_READER_H_

thirdparty/breakpad/client/linux/minidump_writer/directory_reader_unittest.cc

@@ -0,0 +1,77 @@
+// Copyright (c) 2009, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include <set>
+#include <string>
+
+#include <dirent.h>
+#include <fcntl.h>
+#include <sys/types.h>
+
+#include "client/linux/minidump_writer/directory_reader.h"
+#include "breakpad_googletest_includes.h"
+
+using namespace google_breakpad;
+
+namespace {
+typedef testing::Test DirectoryReaderTest;
+}
+
+TEST(DirectoryReaderTest, CompareResults) {
+  std::set<std::string> dent_set;
+
+  DIR *const dir = opendir("/proc/self");
+  ASSERT_TRUE(dir != NULL);
+
+  struct dirent* dent;
+  while ((dent = readdir(dir)))
+    dent_set.insert(dent->d_name);
+
+  closedir(dir);
+
+  const int fd = open("/proc/self", O_DIRECTORY | O_RDONLY);
+  ASSERT_GE(fd, 0);
+
+  DirectoryReader dir_reader(fd);
+  unsigned seen = 0;
+
+  const char* name;
+  while (dir_reader.GetNextEntry(&name)) {
+    ASSERT_TRUE(dent_set.find(name) != dent_set.end());
+    seen++;
+    dir_reader.PopEntry();
+  }
+
+  ASSERT_TRUE(dent_set.find("status") != dent_set.end());
+  ASSERT_TRUE(dent_set.find("stat") != dent_set.end());
+  ASSERT_TRUE(dent_set.find("cmdline") != dent_set.end());
+
+  ASSERT_EQ(dent_set.size(), seen);
+  close(fd);
+}

thirdparty/breakpad/client/linux/minidump_writer/line_reader.h

@@ -0,0 +1,130 @@
+// Copyright (c) 2009, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CLIENT_LINUX_MINIDUMP_WRITER_LINE_READER_H_
+#define CLIENT_LINUX_MINIDUMP_WRITER_LINE_READER_H_
+
+#include <stdint.h>
+#include <assert.h>
+#include <string.h>
+
+#include "third_party/lss/linux_syscall_support.h"
+
+namespace google_breakpad {
+
+// A class for reading a file, line by line, without using fopen/fgets or other
+// functions which may allocate memory.
+class LineReader {
+ public:
+  LineReader(int fd)
+      : fd_(fd),
+        hit_eof_(false),
+        buf_used_(0) {
+  }
+
+  // The maximum length of a line.
+  static const size_t kMaxLineLen = 512;
+
+  // Return the next line from the file.
+  //   line: (output) a pointer to the start of the line. The line is NUL
+  //     terminated.
+  //   len: (output) the length of the line (not inc the NUL byte)
+  //
+  // Returns true iff successful (false on EOF).
+  //
+  // One must call |PopLine| after this function, otherwise you'll continue to
+  // get the same line over and over.
+  bool GetNextLine(const char **line, unsigned *len) {
+    for (;;) {
+      if (buf_used_ == 0 && hit_eof_)
+        return false;
+
+      for (unsigned i = 0; i < buf_used_; ++i) {
+        if (buf_[i] == '\n' || buf_[i] == 0) {
+          buf_[i] = 0;
+          *len = i;
+          *line = buf_;
+          return true;
+        }
+      }
+
+      if (buf_used_ == sizeof(buf_)) {
+        // we scanned the whole buffer and didn't find an end-of-line marker.
+        // This line is too long to process.
+        return false;
+      }
+
+      // We didn't find any end-of-line terminators in the buffer. However, if
+      // this is the last line in the file it might not have one:
+      if (hit_eof_) {
+        assert(buf_used_);
+        // There's room for the NUL because of the buf_used_ == sizeof(buf_)
+        // check above.
+        buf_[buf_used_] = 0;
+        *len = buf_used_;
+        buf_used_ += 1;  // since we appended the NUL.
+        *line = buf_;
+        return true;
+      }
+
+      // Otherwise, we should pull in more data from the file
+      const ssize_t n = sys_read(fd_, buf_ + buf_used_,
+                                 sizeof(buf_) - buf_used_);
+      if (n < 0) {
+        return false;
+      } else if (n == 0) {
+        hit_eof_ = true;
+      } else {
+        buf_used_ += n;
+      }
+
+      // At this point, we have either set the hit_eof_ flag, or we have more
+      // data to process...
+    }
+  }
+
+  void PopLine(unsigned len) {
+    // len doesn't include the NUL byte at the end.
+
+    assert(buf_used_ >= len + 1);
+    buf_used_ -= len + 1;
+    memmove(buf_, buf_ + len + 1, buf_used_);
+  }
+
+ private:
+  const int fd_;
+
+  bool hit_eof_;
+  unsigned buf_used_;
+  char buf_[kMaxLineLen];
+};
+
+}  // namespace google_breakpad
+
+#endif  // CLIENT_LINUX_MINIDUMP_WRITER_LINE_READER_H_

thirdparty/breakpad/client/linux/minidump_writer/line_reader_unittest.cc

@@ -0,0 +1,190 @@
+// Copyright (c) 2009, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+
+#include "client/linux/minidump_writer/line_reader.h"
+#include "breakpad_googletest_includes.h"
+
+using namespace google_breakpad;
+
+#if !defined(__ANDROID__)
+#define TEMPDIR "/tmp"
+#else
+#define TEMPDIR "/data/local/tmp"
+#endif
+
+static int TemporaryFile() {
+  static const char templ[] = TEMPDIR "/line-reader-unittest-XXXXXX";
+  char templ_copy[sizeof(templ)];
+  memcpy(templ_copy, templ, sizeof(templ));
+  const int fd = mkstemp(templ_copy);
+  if (fd >= 0)
+    unlink(templ_copy);
+
+  return fd;
+}
+
+namespace {
+typedef testing::Test LineReaderTest;
+}
+
+TEST(LineReaderTest, EmptyFile) {
+  const int fd = TemporaryFile();
+  LineReader reader(fd);
+
+  const char *line;
+  unsigned len;
+  ASSERT_FALSE(reader.GetNextLine(&line, &len));
+
+  close(fd);
+}
+
+TEST(LineReaderTest, OneLineTerminated) {
+  const int fd = TemporaryFile();
+  write(fd, "a\n", 2);
+  lseek(fd, 0, SEEK_SET);
+  LineReader reader(fd);
+
+  const char *line;
+  unsigned int len;
+  ASSERT_TRUE(reader.GetNextLine(&line, &len));
+  ASSERT_EQ(len, (unsigned int)1);
+  ASSERT_EQ(line[0], 'a');
+  ASSERT_EQ(line[1], 0);
+  reader.PopLine(len);
+
+  ASSERT_FALSE(reader.GetNextLine(&line, &len));
+
+  close(fd);
+}
+
+TEST(LineReaderTest, OneLine) {
+  const int fd = TemporaryFile();
+  write(fd, "a", 1);
+  lseek(fd, 0, SEEK_SET);
+  LineReader reader(fd);
+
+  const char *line;
+  unsigned len;
+  ASSERT_TRUE(reader.GetNextLine(&line, &len));
+  ASSERT_EQ(len, (unsigned)1);
+  ASSERT_EQ(line[0], 'a');
+  ASSERT_EQ(line[1], 0);
+  reader.PopLine(len);
+
+  ASSERT_FALSE(reader.GetNextLine(&line, &len));
+
+  close(fd);
+}
+
+TEST(LineReaderTest, TwoLinesTerminated) {
+  const int fd = TemporaryFile();
+  write(fd, "a\nb\n", 4);
+  lseek(fd, 0, SEEK_SET);
+  LineReader reader(fd);
+
+  const char *line;
+  unsigned len;
+  ASSERT_TRUE(reader.GetNextLine(&line, &len));
+  ASSERT_EQ(len, (unsigned)1);
+  ASSERT_EQ(line[0], 'a');
+  ASSERT_EQ(line[1], 0);
+  reader.PopLine(len);
+
+  ASSERT_TRUE(reader.GetNextLine(&line, &len));
+  ASSERT_EQ(len, (unsigned)1);
+  ASSERT_EQ(line[0], 'b');
+  ASSERT_EQ(line[1], 0);
+  reader.PopLine(len);
+
+  ASSERT_FALSE(reader.GetNextLine(&line, &len));
+
+  close(fd);
+}
+
+TEST(LineReaderTest, TwoLines) {
+  const int fd = TemporaryFile();
+  write(fd, "a\nb", 3);
+  lseek(fd, 0, SEEK_SET);
+  LineReader reader(fd);
+
+  const char *line;
+  unsigned len;
+  ASSERT_TRUE(reader.GetNextLine(&line, &len));
+  ASSERT_EQ(len, (unsigned)1);
+  ASSERT_EQ(line[0], 'a');
+  ASSERT_EQ(line[1], 0);
+  reader.PopLine(len);
+
+  ASSERT_TRUE(reader.GetNextLine(&line, &len));
+  ASSERT_EQ(len, (unsigned)1);
+  ASSERT_EQ(line[0], 'b');
+  ASSERT_EQ(line[1], 0);
+  reader.PopLine(len);
+
+  ASSERT_FALSE(reader.GetNextLine(&line, &len));
+
+  close(fd);
+}
+
+TEST(LineReaderTest, MaxLength) {
+  const int fd = TemporaryFile();
+  char l[LineReader::kMaxLineLen - 1];
+  memset(l, 'a', sizeof(l));
+  write(fd, l, sizeof(l));
+  lseek(fd, 0, SEEK_SET);
+  LineReader reader(fd);
+
+  const char *line;
+  unsigned len;
+  ASSERT_TRUE(reader.GetNextLine(&line, &len));
+  ASSERT_EQ(len, sizeof(l));
+  ASSERT_TRUE(memcmp(l, line, sizeof(l)) == 0);
+  ASSERT_EQ(line[len], 0);
+
+  close(fd);
+}
+
+TEST(LineReaderTest, TooLong) {
+  const int fd = TemporaryFile();
+  char l[LineReader::kMaxLineLen];
+  memset(l, 'a', sizeof(l));
+  write(fd, l, sizeof(l));
+  lseek(fd, 0, SEEK_SET);
+  LineReader reader(fd);
+
+  const char *line;
+  unsigned len;
+  ASSERT_FALSE(reader.GetNextLine(&line, &len));
+
+  close(fd);
+}

thirdparty/breakpad/client/linux/minidump_writer/linux_dumper.cc

@@ -0,0 +1,571 @@
+// Copyright (c) 2010, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// This code deals with the mechanics of getting information about a crashed
+// process. Since this code may run in a compromised address space, the same
+// rules apply as detailed at the top of minidump_writer.h: no libc calls and
+// use the alternative allocator.
+
+#include "client/linux/minidump_writer/linux_dumper.h"
+
+#include <asm/ptrace.h>
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#if !defined(__ANDROID__)
+#include <link.h>
+#endif
+#include <stddef.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/ptrace.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include <algorithm>
+
+#include "client/linux/minidump_writer/directory_reader.h"
+#include "client/linux/minidump_writer/line_reader.h"
+#include "common/linux/file_id.h"
+#include "common/linux/linux_libc_support.h"
+#include "third_party/lss/linux_syscall_support.h"
+
+static const char kMappedFileUnsafePrefix[] = "/dev/";
+static const char kDeletedSuffix[] = " (deleted)";
+
+// Suspend a thread by attaching to it.
+static bool SuspendThread(pid_t pid) {
+  // This may fail if the thread has just died or debugged.
+  errno = 0;
+  if (sys_ptrace(PTRACE_ATTACH, pid, NULL, NULL) != 0 &&
+      errno != 0) {
+    return false;
+  }
+  while (sys_waitpid(pid, NULL, __WALL) < 0) {
+    if (errno != EINTR) {
+      sys_ptrace(PTRACE_DETACH, pid, NULL, NULL);
+      return false;
+    }
+  }
+#if defined(__i386) || defined(__x86_64)
+  // On x86, the stack pointer is NULL or -1, when executing trusted code in
+  // the seccomp sandbox. Not only does this cause difficulties down the line
+  // when trying to dump the thread's stack, it also results in the minidumps
+  // containing information about the trusted threads. This information is
+  // generally completely meaningless and just pollutes the minidumps.
+  // We thus test the stack pointer and exclude any threads that are part of
+  // the seccomp sandbox's trusted code.
+  user_regs_struct regs;
+  if (sys_ptrace(PTRACE_GETREGS, pid, NULL, &regs) == -1 ||
+#if defined(__i386)
+      !regs.esp
+#elif defined(__x86_64)
+      !regs.rsp
+#endif
+      ) {
+    sys_ptrace(PTRACE_DETACH, pid, NULL, NULL);
+    return false;
+  }
+#endif
+  return true;
+}
+
+// Resume a thread by detaching from it.
+static bool ResumeThread(pid_t pid) {
+  return sys_ptrace(PTRACE_DETACH, pid, NULL, NULL) >= 0;
+}
+
+inline static bool IsMappedFileOpenUnsafe(
+    const google_breakpad::MappingInfo& mapping) {
+  // It is unsafe to attempt to open a mapped file that lives under /dev,
+  // because the semantics of the open may be driver-specific so we'd risk
+  // hanging the crash dumper. And a file in /dev/ almost certainly has no
+  // ELF file identifier anyways.
+  return my_strncmp(mapping.name,
+                    kMappedFileUnsafePrefix,
+                    sizeof(kMappedFileUnsafePrefix) - 1) == 0;
+}
+
+namespace google_breakpad {
+
+LinuxDumper::LinuxDumper(int pid)
+    : pid_(pid),
+      threads_suspended_(false),
+      threads_(&allocator_, 8),
+      mappings_(&allocator_) {
+}
+
+bool LinuxDumper::Init() {
+  return EnumerateThreads(&threads_) &&
+         EnumerateMappings(&mappings_);
+}
+
+bool LinuxDumper::ThreadsSuspend() {
+  if (threads_suspended_)
+    return true;
+  for (size_t i = 0; i < threads_.size(); ++i) {
+    if (!SuspendThread(threads_[i])) {
+      // If the thread either disappeared before we could attach to it, or if
+      // it was part of the seccomp sandbox's trusted code, it is OK to
+      // silently drop it from the minidump.
+      memmove(&threads_[i], &threads_[i+1],
+              (threads_.size() - i - 1) * sizeof(threads_[i]));
+      threads_.resize(threads_.size() - 1);
+      --i;
+    }
+  }
+  threads_suspended_ = true;
+  return threads_.size() > 0;
+}
+
+bool LinuxDumper::ThreadsResume() {
+  if (!threads_suspended_)
+    return false;
+  bool good = true;
+  for (size_t i = 0; i < threads_.size(); ++i)
+    good &= ResumeThread(threads_[i]);
+  threads_suspended_ = false;
+  return good;
+}
+
+void
+LinuxDumper::BuildProcPath(char* path, pid_t pid, const char* node) const {
+  assert(path);
+  if (!path) {
+    return;
+  }
+
+  path[0] = '\0';
+
+  const unsigned pid_len = my_int_len(pid);
+
+  assert(node);
+  if (!node) {
+    return;
+  }
+
+  size_t node_len = my_strlen(node);
+  assert(node_len < NAME_MAX);
+  if (node_len >= NAME_MAX) {
+    return;
+  }
+
+  assert(node_len > 0);
+  if (node_len == 0) {
+    return;
+  }
+
+  assert(pid > 0);
+  if (pid <= 0) {
+    return;
+  }
+
+  const size_t total_length = 6 + pid_len + 1 + node_len;
+
+  assert(total_length < NAME_MAX);
+  if (total_length >= NAME_MAX) {
+    return;
+  }
+
+  memcpy(path, "/proc/", 6);
+  my_itos(path + 6, pid, pid_len);
+  memcpy(path + 6 + pid_len, "/", 1);
+  memcpy(path + 6 + pid_len + 1, node, node_len);
+  path[total_length] = '\0';
+}
+
+bool
+LinuxDumper::ElfFileIdentifierForMapping(const MappingInfo& mapping,
+                                         bool member,
+                                         unsigned int mapping_id,
+                                         uint8_t identifier[sizeof(MDGUID)])
+{
+  assert(!member || mapping_id < mappings_.size());
+  my_memset(identifier, 0, sizeof(MDGUID));
+  if (IsMappedFileOpenUnsafe(mapping))
+    return false;
+
+  // Special-case linux-gate because it's not a real file.
+  if (my_strcmp(mapping.name, kLinuxGateLibraryName) == 0) {
+    const uintptr_t kPageSize = getpagesize();
+    void* linux_gate = NULL;
+    if (pid_ == sys_getpid()) {
+      linux_gate = reinterpret_cast<void*>(mapping.start_addr);
+    } else {
+      linux_gate = allocator_.Alloc(kPageSize);
+      CopyFromProcess(linux_gate, pid_,
+                      reinterpret_cast<const void*>(mapping.start_addr),
+                      kPageSize);
+    }
+    return FileID::ElfFileIdentifierFromMappedFile(linux_gate, identifier);
+  }
+
+  char filename[NAME_MAX];
+  size_t filename_len = my_strlen(mapping.name);
+  assert(filename_len < NAME_MAX);
+  if (filename_len >= NAME_MAX)
+    return false;
+  memcpy(filename, mapping.name, filename_len);
+  filename[filename_len] = '\0';
+  bool filename_modified = HandleDeletedFileInMapping(filename);
+
+  int fd = sys_open(filename, O_RDONLY, 0);
+  if (fd < 0)
+    return false;
+  struct kernel_stat st;
+  if (sys_fstat(fd, &st) != 0) {
+    sys_close(fd);
+    return false;
+  }
+#if defined(__x86_64)
+#define sys_mmap2 sys_mmap
+#endif
+  void* base = sys_mmap2(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
+  sys_close(fd);
+  if (base == MAP_FAILED)
+    return false;
+
+  bool success = FileID::ElfFileIdentifierFromMappedFile(base, identifier);
+  sys_munmap(base, st.st_size);
+  if (success && member && filename_modified) {
+    mappings_[mapping_id]->name[filename_len -
+                                sizeof(kDeletedSuffix) + 1] = '\0';
+  }
+
+  return success;
+}
+
+void*
+LinuxDumper::FindBeginningOfLinuxGateSharedLibrary(const pid_t pid) const {
+  char auxv_path[NAME_MAX];
+  BuildProcPath(auxv_path, pid, "auxv");
+
+  // If BuildProcPath errors out due to invalid input, we'll handle it when
+  // we try to sys_open the file.
+
+  // Find the AT_SYSINFO_EHDR entry for linux-gate.so
+  // See http://www.trilithium.com/johan/2005/08/linux-gate/ for more
+  // information.
+  int fd = sys_open(auxv_path, O_RDONLY, 0);
+  if (fd < 0) {
+    return NULL;
+  }
+
+  elf_aux_entry one_aux_entry;
+  while (sys_read(fd,
+                  &one_aux_entry,
+                  sizeof(elf_aux_entry)) == sizeof(elf_aux_entry) &&
+         one_aux_entry.a_type != AT_NULL) {
+    if (one_aux_entry.a_type == AT_SYSINFO_EHDR) {
+      close(fd);
+      return reinterpret_cast<void*>(one_aux_entry.a_un.a_val);
+    }
+  }
+  close(fd);
+  return NULL;
+}
+
+bool
+LinuxDumper::EnumerateMappings(wasteful_vector<MappingInfo*>* result) const {
+  char maps_path[NAME_MAX];
+  BuildProcPath(maps_path, pid_, "maps");
+
+  // linux_gate_loc is the beginning of the kernel's mapping of
+  // linux-gate.so in the process.  It doesn't actually show up in the
+  // maps list as a filename, so we use the aux vector to find it's
+  // load location and special case it's entry when creating the list
+  // of mappings.
+  const void* linux_gate_loc;
+  linux_gate_loc = FindBeginningOfLinuxGateSharedLibrary(pid_);
+
+  const int fd = sys_open(maps_path, O_RDONLY, 0);
+  if (fd < 0)
+    return false;
+  LineReader* const line_reader = new(allocator_) LineReader(fd);
+
+  const char* line;
+  unsigned line_len;
+  while (line_reader->GetNextLine(&line, &line_len)) {
+    uintptr_t start_addr, end_addr, offset;
+
+    const char* i1 = my_read_hex_ptr(&start_addr, line);
+    if (*i1 == '-') {
+      const char* i2 = my_read_hex_ptr(&end_addr, i1 + 1);
+      if (*i2 == ' ') {
+        const char* i3 = my_read_hex_ptr(&offset, i2 + 6 /* skip ' rwxp ' */);
+        if (*i3 == ' ') {
+          const char* name = NULL;
+          // Only copy name if the name is a valid path name, or if
+          // it's the VDSO image.
+          if (((name = my_strchr(line, '/')) == NULL) &&
+              linux_gate_loc &&
+              reinterpret_cast<void*>(start_addr) == linux_gate_loc) {
+            name = kLinuxGateLibraryName;
+            offset = 0;
+          }
+          // Merge adjacent mappings with the same name into one module,
+          // assuming they're a single library mapped by the dynamic linker
+          if (name && result->size()) {
+            MappingInfo* module = (*result)[result->size() - 1];
+            if ((start_addr == module->start_addr + module->size) &&
+                (my_strlen(name) == my_strlen(module->name)) &&
+                (my_strncmp(name, module->name, my_strlen(name)) == 0)) {
+              module->size = end_addr - module->start_addr;
+              line_reader->PopLine(line_len);
+              continue;
+            }
+          }
+          MappingInfo* const module = new(allocator_) MappingInfo;
+          memset(module, 0, sizeof(MappingInfo));
+          module->start_addr = start_addr;
+          module->size = end_addr - start_addr;
+          module->offset = offset;
+          if (name != NULL) {
+            const unsigned l = my_strlen(name);
+            if (l < sizeof(module->name))
+              memcpy(module->name, name, l);
+          }
+          result->push_back(module);
+        }
+      }
+    }
+    line_reader->PopLine(line_len);
+  }
+
+  sys_close(fd);
+
+  return result->size() > 0;
+}
+
+// Parse /proc/$pid/task to list all the threads of the process identified by
+// pid.
+bool LinuxDumper::EnumerateThreads(wasteful_vector<pid_t>* result) const {
+  char task_path[NAME_MAX];
+  BuildProcPath(task_path, pid_, "task");
+
+  const int fd = sys_open(task_path, O_RDONLY | O_DIRECTORY, 0);
+  if (fd < 0)
+    return false;
+  DirectoryReader* dir_reader = new(allocator_) DirectoryReader(fd);
+
+  // The directory may contain duplicate entries which we filter by assuming
+  // that they are consecutive.
+  int last_tid = -1;
+  const char* dent_name;
+  while (dir_reader->GetNextEntry(&dent_name)) {
+    if (my_strcmp(dent_name, ".") &&
+        my_strcmp(dent_name, "..")) {
+      int tid = 0;
+      if (my_strtoui(&tid, dent_name) &&
+          last_tid != tid) {
+        last_tid = tid;
+        result->push_back(tid);
+      }
+    }
+    dir_reader->PopEntry();
+  }
+
+  sys_close(fd);
+  return true;
+}
+
+// Read thread info from /proc/$pid/status.
+// Fill out the |tgid|, |ppid| and |pid| members of |info|. If unavailable,
+// these members are set to -1. Returns true iff all three members are
+// available.
+bool LinuxDumper::ThreadInfoGet(pid_t tid, ThreadInfo* info) {
+  assert(info != NULL);
+  char status_path[NAME_MAX];
+  BuildProcPath(status_path, tid, "status");
+
+  const int fd = open(status_path, O_RDONLY);
+  if (fd < 0)
+    return false;
+
+  LineReader* const line_reader = new(allocator_) LineReader(fd);
+  const char* line;
+  unsigned line_len;
+
+  info->ppid = info->tgid = -1;
+
+  while (line_reader->GetNextLine(&line, &line_len)) {
+    if (my_strncmp("Tgid:\t", line, 6) == 0) {
+      my_strtoui(&info->tgid, line + 6);
+    } else if (my_strncmp("PPid:\t", line, 6) == 0) {
+      my_strtoui(&info->ppid, line + 6);
+    }
+
+    line_reader->PopLine(line_len);
+  }
+
+  if (info->ppid == -1 || info->tgid == -1)
+    return false;
+
+  if (sys_ptrace(PTRACE_GETREGS, tid, NULL, &info->regs) == -1) {
+    return false;
+  }
+
+#if !defined(__ANDROID__)
+  if (sys_ptrace(PTRACE_GETFPREGS, tid, NULL, &info->fpregs) == -1) {
+    return false;
+  }
+#endif
+
+#if defined(__i386)
+  if (sys_ptrace(PTRACE_GETFPXREGS, tid, NULL, &info->fpxregs) == -1)
+    return false;
+#endif
+
+#if defined(__i386) || defined(__x86_64)
+  for (unsigned i = 0; i < ThreadInfo::kNumDebugRegisters; ++i) {
+    if (sys_ptrace(
+        PTRACE_PEEKUSER, tid,
+        reinterpret_cast<void*> (offsetof(struct user,
+                                          u_debugreg[0]) + i *
+                                 sizeof(debugreg_t)),
+        &info->dregs[i]) == -1) {
+      return false;
+    }
+  }
+#endif
+
+  const uint8_t* stack_pointer;
+#if defined(__i386)
+  memcpy(&stack_pointer, &info->regs.esp, sizeof(info->regs.esp));
+#elif defined(__x86_64)
+  memcpy(&stack_pointer, &info->regs.rsp, sizeof(info->regs.rsp));
+#elif defined(__ARM_EABI__)
+  memcpy(&stack_pointer, &info->regs.ARM_sp, sizeof(info->regs.ARM_sp));
+#else
+#error "This code hasn't been ported to your platform yet."
+#endif
+
+  return GetStackInfo(&info->stack, &info->stack_len,
+                      (uintptr_t) stack_pointer);
+}
+
+// Get information about the stack, given the stack pointer. We don't try to
+// walk the stack since we might not have all the information needed to do
+// unwind. So we just grab, up to, 32k of stack.
+bool LinuxDumper::GetStackInfo(const void** stack, size_t* stack_len,
+                               uintptr_t int_stack_pointer) {
+  // Move the stack pointer to the bottom of the page that it's in.
+  const uintptr_t page_size = getpagesize();
+
+  uint8_t* const stack_pointer =
+      reinterpret_cast<uint8_t*>(int_stack_pointer & ~(page_size - 1));
+
+  // The number of bytes of stack which we try to capture.
+  static const ptrdiff_t kStackToCapture = 32 * 1024;
+
+  const MappingInfo* mapping = FindMapping(stack_pointer);
+  if (!mapping)
+    return false;
+  const ptrdiff_t offset = stack_pointer - (uint8_t*) mapping->start_addr;
+  const ptrdiff_t distance_to_end =
+      static_cast<ptrdiff_t>(mapping->size) - offset;
+  *stack_len = distance_to_end > kStackToCapture ?
+      kStackToCapture : distance_to_end;
+  *stack = stack_pointer;
+  return true;
+}
+
+// static
+void LinuxDumper::CopyFromProcess(void* dest, pid_t child, const void* src,
+                                  size_t length) {
+  unsigned long tmp = 55;
+  size_t done = 0;
+  static const size_t word_size = sizeof(tmp);
+  uint8_t* const local = (uint8_t*) dest;
+  uint8_t* const remote = (uint8_t*) src;
+
+  while (done < length) {
+    const size_t l = length - done > word_size ? word_size : length - done;
+    if (sys_ptrace(PTRACE_PEEKDATA, child, remote + done, &tmp) == -1) {
+      tmp = 0;
+    }
+    memcpy(local + done, &tmp, l);
+    done += l;
+  }
+}
+
+// Find the mapping which the given memory address falls in.
+const MappingInfo* LinuxDumper::FindMapping(const void* address) const {
+  const uintptr_t addr = (uintptr_t) address;
+
+  for (size_t i = 0; i < mappings_.size(); ++i) {
+    const uintptr_t start = static_cast<uintptr_t>(mappings_[i]->start_addr);
+    if (addr >= start && addr - start < mappings_[i]->size)
+      return mappings_[i];
+  }
+
+  return NULL;
+}
+
+bool LinuxDumper::HandleDeletedFileInMapping(char* path) const {
+  static const size_t kDeletedSuffixLen = sizeof(kDeletedSuffix) - 1;
+
+  // Check for ' (deleted)' in |path|.
+  // |path| has to be at least as long as "/x (deleted)".
+  const size_t path_len = my_strlen(path);
+  if (path_len < kDeletedSuffixLen + 2)
+    return false;
+  if (my_strncmp(path + path_len - kDeletedSuffixLen, kDeletedSuffix,
+                 kDeletedSuffixLen) != 0) {
+    return false;
+  }
+
+  // Check |path| against the /proc/pid/exe 'symlink'.
+  char exe_link[NAME_MAX];
+  char new_path[NAME_MAX];
+  BuildProcPath(exe_link, pid_, "exe");
+  ssize_t new_path_len = sys_readlink(exe_link, new_path, NAME_MAX);
+  if (new_path_len <= 0 || new_path_len == NAME_MAX)
+    return false;
+  new_path[new_path_len] = '\0';
+  if (my_strcmp(path, new_path) != 0)
+    return false;
+
+  // Check to see if someone actually named their executable 'foo (deleted)'.
+  struct kernel_stat exe_stat;
+  struct kernel_stat new_path_stat;
+  if (sys_stat(exe_link, &exe_stat) == 0 &&
+      sys_stat(new_path, &new_path_stat) == 0 &&
+      exe_stat.st_dev == new_path_stat.st_dev &&
+      exe_stat.st_ino == new_path_stat.st_ino) {
+    return false;
+  }
+
+  memcpy(path, exe_link, NAME_MAX);
+  return true;
+}
+
+}  // namespace google_breakpad

thirdparty/breakpad/client/linux/minidump_writer/linux_dumper.h

@@ -0,0 +1,193 @@
+// Copyright (c) 2010, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CLIENT_LINUX_MINIDUMP_WRITER_LINUX_DUMPER_H_
+#define CLIENT_LINUX_MINIDUMP_WRITER_LINUX_DUMPER_H_
+
+#include <elf.h>
+#include <linux/limits.h>
+#include <stdint.h>
+#include <sys/types.h>
+#if !defined(__ANDROID__)
+#include <sys/user.h>
+#endif
+
+#include "common/memory.h"
+#include "google_breakpad/common/minidump_format.h"
+
+namespace google_breakpad {
+
+#if defined(__i386) || defined(__x86_64)
+typedef typeof(((struct user*) 0)->u_debugreg[0]) debugreg_t;
+#endif
+
+// Typedef for our parsing of the auxv variables in /proc/pid/auxv.
+#if defined(__i386) || defined(__ARM_EABI__)
+#if !defined(__ANDROID__)
+typedef Elf32_auxv_t elf_aux_entry;
+#else
+// Android is missing this structure definition
+typedef struct
+{
+  uint32_t a_type;              /* Entry type */
+  union
+    {
+      uint32_t a_val;           /* Integer value */
+    } a_un;
+} elf_aux_entry;
+
+#if !defined(AT_SYSINFO_EHDR)
+#define AT_SYSINFO_EHDR 33
+#endif
+#endif  // __ANDROID__
+#elif defined(__x86_64__)
+typedef Elf64_auxv_t elf_aux_entry;
+#endif
+// When we find the VDSO mapping in the process's address space, this
+// is the name we use for it when writing it to the minidump.
+// This should always be less than NAME_MAX!
+const char kLinuxGateLibraryName[] = "linux-gate.so";
+
+// We produce one of these structures for each thread in the crashed process.
+struct ThreadInfo {
+  pid_t tgid;   // thread group id
+  pid_t ppid;   // parent process
+
+  // Even on platforms where the stack grows down, the following will point to
+  // the smallest address in the stack.
+  const void* stack;  // pointer to the stack area
+  size_t stack_len;  // length of the stack to copy
+
+
+#if defined(__i386) || defined(__x86_64)
+  user_regs_struct regs;
+  user_fpregs_struct fpregs;
+  static const unsigned kNumDebugRegisters = 8;
+  debugreg_t dregs[8];
+#if defined(__i386)
+  user_fpxregs_struct fpxregs;
+#endif  // defined(__i386)
+
+#elif defined(__ARM_EABI__)
+  // Mimicking how strace does this(see syscall.c, search for GETREGS)
+#if defined(__ANDROID__)
+  struct pt_regs regs;
+#else
+  struct user_regs regs;
+  struct user_fpregs fpregs;
+#endif  // __ANDROID__
+#endif
+};
+
+// One of these is produced for each mapping in the process (i.e. line in
+// /proc/$x/maps).
+struct MappingInfo {
+  uintptr_t start_addr;
+  size_t size;
+  size_t offset;  // offset into the backed file.
+  char name[NAME_MAX];
+};
+
+class LinuxDumper {
+ public:
+  explicit LinuxDumper(pid_t pid);
+
+  // Parse the data for |threads| and |mappings|.
+  bool Init();
+
+  // Suspend/resume all threads in the given process.
+  bool ThreadsSuspend();
+  bool ThreadsResume();
+
+  // Read information about the given thread. Returns true on success. One must
+  // have called |ThreadsSuspend| first.
+  bool ThreadInfoGet(pid_t tid, ThreadInfo* info);
+
+  // These are only valid after a call to |Init|.
+  const wasteful_vector<pid_t> &threads() { return threads_; }
+  const wasteful_vector<MappingInfo*> &mappings() { return mappings_; }
+  const MappingInfo* FindMapping(const void* address) const;
+
+  // Find a block of memory to take as the stack given the top of stack pointer.
+  //   stack: (output) the lowest address in the memory area
+  //   stack_len: (output) the length of the memory area
+  //   stack_top: the current top of the stack
+  bool GetStackInfo(const void** stack, size_t* stack_len, uintptr_t stack_top);
+
+  PageAllocator* allocator() { return &allocator_; }
+
+  // memcpy from a remote process.
+  static void CopyFromProcess(void* dest, pid_t child, const void* src,
+                              size_t length);
+
+  // Builds a proc path for a certain pid for a node.  path is a
+  // character array that is overwritten, and node is the final node
+  // without any slashes.
+  void BuildProcPath(char* path, pid_t pid, const char* node) const;
+
+  // Generate a File ID from the .text section of a mapped entry.
+  // If not a member, mapping_id is ignored.
+  bool ElfFileIdentifierForMapping(const MappingInfo& mapping,
+                                   bool member,
+                                   unsigned int mapping_id,
+                                   uint8_t identifier[sizeof(MDGUID)]);
+
+  // Utility method to find the location of where the kernel has
+  // mapped linux-gate.so in memory(shows up in /proc/pid/maps as
+  // [vdso], but we can't guarantee that it's the only virtual dynamic
+  // shared object.  Parsing the auxilary vector for AT_SYSINFO_EHDR
+  // is the safest way to go.)
+  void* FindBeginningOfLinuxGateSharedLibrary(const pid_t pid) const;
+ private:
+  bool EnumerateMappings(wasteful_vector<MappingInfo*>* result) const;
+  bool EnumerateThreads(wasteful_vector<pid_t>* result) const;
+
+  // For the case where a running program has been deleted, it'll show up in
+  // /proc/pid/maps as "/path/to/program (deleted)". If this is the case, then
+  // see if '/path/to/program (deleted)' matches /proc/pid/exe and return
+  // /proc/pid/exe in |path| so ELF identifier generation works correctly. This
+  // also checks to see if '/path/to/program (deleted)' exists, so it does not
+  // get fooled by a poorly named binary.
+  // For programs that don't end with ' (deleted)', this is a no-op.
+  // This assumes |path| is a buffer with length NAME_MAX.
+  // Returns true if |path| is modified.
+  bool HandleDeletedFileInMapping(char* path) const;
+
+  const pid_t pid_;
+
+  mutable PageAllocator allocator_;
+
+  bool threads_suspended_;
+  wasteful_vector<pid_t> threads_;  // the ids of all the threads
+  wasteful_vector<MappingInfo*> mappings_;  // info from /proc/<pid>/maps
+};
+
+}  // namespace google_breakpad
+
+#endif  // CLIENT_LINUX_HANDLER_LINUX_DUMPER_H_

thirdparty/breakpad/client/linux/minidump_writer/linux_dumper_unittest.cc

@@ -0,0 +1,429 @@
+// Copyright (c) 2009, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include <string>
+
+#include <fcntl.h>
+#include <limits.h>
+#include <unistd.h>
+#include <signal.h>
+#include <stdint.h>
+#include <sys/mman.h>
+#include <sys/poll.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include "breakpad_googletest_includes.h"
+#include "client/linux/minidump_writer/linux_dumper.h"
+#include "common/linux/eintr_wrapper.h"
+#include "common/linux/file_id.h"
+#include "common/memory.h"
+
+using std::string;
+using namespace google_breakpad;
+
+namespace {
+typedef testing::Test LinuxDumperTest;
+
+string GetHelperBinary() {
+  // Locate helper binary next to the current binary.
+  char self_path[PATH_MAX];
+  if (readlink("/proc/self/exe", self_path, sizeof(self_path) - 1) == -1) {
+    return "";
+  }
+  string helper_path(self_path);
+  size_t pos = helper_path.rfind('/');
+  if (pos == string::npos) {
+    return "";
+  }
+  helper_path.erase(pos + 1);
+  helper_path += "linux_dumper_unittest_helper";
+
+  return helper_path;
+}
+
+}
+
+TEST(LinuxDumperTest, Setup) {
+  LinuxDumper dumper(getpid());
+}
+
+TEST(LinuxDumperTest, FindMappings) {
+  LinuxDumper dumper(getpid());
+  ASSERT_TRUE(dumper.Init());
+
+  ASSERT_TRUE(dumper.FindMapping(reinterpret_cast<void*>(getpid)));
+  ASSERT_TRUE(dumper.FindMapping(reinterpret_cast<void*>(printf)));
+  ASSERT_FALSE(dumper.FindMapping(NULL));
+}
+
+TEST(LinuxDumperTest, ThreadList) {
+  LinuxDumper dumper(getpid());
+  ASSERT_TRUE(dumper.Init());
+
+  ASSERT_GE(dumper.threads().size(), (size_t)1);
+  bool found = false;
+  for (size_t i = 0; i < dumper.threads().size(); ++i) {
+    if (dumper.threads()[i] == getpid()) {
+      found = true;
+      break;
+    }
+  }
+}
+
+// Helper stack class to close a file descriptor and unmap
+// a mmap'ed mapping.
+class StackHelper {
+public:
+  StackHelper(int fd, char* mapping, size_t size)
+    : fd_(fd), mapping_(mapping), size_(size) {}
+  ~StackHelper() {
+    munmap(mapping_, size_);
+    close(fd_);
+  }
+
+private:
+  int fd_;
+  char* mapping_;
+  size_t size_;
+};
+
+TEST(LinuxDumperTest, MergedMappings) {
+  string helper_path(GetHelperBinary());
+  if (helper_path.empty()) {
+    FAIL() << "Couldn't find helper binary";
+    exit(1);
+  }
+
+  // mmap two segments out of the helper binary, one
+  // enclosed in the other, but with different protections.
+  const size_t kPageSize = sysconf(_SC_PAGESIZE);
+  const size_t kMappingSize = 3 * kPageSize;
+  int fd = open(helper_path.c_str(), O_RDONLY);
+  ASSERT_NE(-1, fd);
+  char* mapping =
+    reinterpret_cast<char*>(mmap(NULL,
+                                 kMappingSize,
+                                 PROT_READ,
+                                 MAP_SHARED,
+                                 fd,
+                                 0));
+  ASSERT_TRUE(mapping);
+
+  const u_int64_t kMappingAddress = reinterpret_cast<u_int64_t>(mapping);
+
+  // Ensure that things get cleaned up.
+  StackHelper helper(fd, mapping, kMappingSize);
+
+  // Carve a page out of the first mapping with different permissions.
+  char* inside_mapping =  reinterpret_cast<char*>(mmap(mapping + 2 *kPageSize,
+                                 kPageSize,
+                                 PROT_NONE,
+                                 MAP_SHARED | MAP_FIXED,
+                                 fd,
+                                 // Map a different offset just to
+                                 // better test real-world conditions.
+                                 kPageSize));
+  ASSERT_TRUE(inside_mapping);
+
+  // Now check that LinuxDumper interpreted the mappings properly.
+  LinuxDumper dumper(getpid());
+  ASSERT_TRUE(dumper.Init());
+  int mapping_count = 0;
+  for (unsigned i = 0; i < dumper.mappings().size(); ++i) {
+    const MappingInfo& mapping = *dumper.mappings()[i];
+    if (strcmp(mapping.name, helper_path.c_str()) == 0) {
+      // This mapping should encompass the entire original mapped
+      // range.
+      EXPECT_EQ(kMappingAddress, mapping.start_addr);
+      EXPECT_EQ(kMappingSize, mapping.size);
+      EXPECT_EQ(0, mapping.offset);
+      mapping_count++;
+    }
+  }
+  EXPECT_EQ(1, mapping_count);
+}
+
+TEST(LinuxDumperTest, VerifyStackReadWithMultipleThreads) {
+  static const int kNumberOfThreadsInHelperProgram = 5;
+  char kNumberOfThreadsArgument[2];
+  sprintf(kNumberOfThreadsArgument, "%d", kNumberOfThreadsInHelperProgram);
+
+  int fds[2];
+  ASSERT_NE(-1, pipe(fds));
+
+  pid_t child_pid = fork();
+  if (child_pid == 0) {
+    // In child process.
+    close(fds[0]);
+
+    string helper_path(GetHelperBinary());
+    if (helper_path.empty()) {
+      FAIL() << "Couldn't find helper binary";
+      exit(1);
+    }
+
+    // Pass the pipe fd and the number of threads as arguments.
+    char pipe_fd_string[8];
+    sprintf(pipe_fd_string, "%d", fds[1]);
+    execl(helper_path.c_str(),
+          "linux_dumper_unittest_helper",
+          pipe_fd_string,
+          kNumberOfThreadsArgument,
+          NULL);
+    // Kill if we get here.
+    printf("Errno from exec: %d", errno);
+    FAIL() << "Exec of " << helper_path << " failed: " << strerror(errno);
+    exit(0);
+  }
+  close(fds[1]);
+  // Wait for the child process to signal that it's ready.
+  struct pollfd pfd;
+  memset(&pfd, 0, sizeof(pfd));
+  pfd.fd = fds[0];
+  pfd.events = POLLIN | POLLERR;
+
+  const int r = HANDLE_EINTR(poll(&pfd, 1, 1000));
+  ASSERT_EQ(1, r);
+  ASSERT_TRUE(pfd.revents & POLLIN);
+  uint8_t junk;
+  read(fds[0], &junk, sizeof(junk));
+  close(fds[0]);
+
+  // Child is ready now.
+  LinuxDumper dumper(child_pid);
+  ASSERT_TRUE(dumper.Init());
+  EXPECT_EQ((size_t)kNumberOfThreadsInHelperProgram, dumper.threads().size());
+  EXPECT_TRUE(dumper.ThreadsSuspend());
+
+  ThreadInfo one_thread;
+  for(size_t i = 0; i < dumper.threads().size(); ++i) {
+    EXPECT_TRUE(dumper.ThreadInfoGet(dumper.threads()[i], &one_thread));
+    // In the helper program, we stored a pointer to the thread id in a
+    // specific register. Check that we can recover its value.
+#if defined(__ARM_EABI__)
+    pid_t *process_tid_location = (pid_t *)(one_thread.regs.uregs[3]);
+#elif defined(__i386)
+    pid_t *process_tid_location = (pid_t *)(one_thread.regs.ecx);
+#elif defined(__x86_64)
+    pid_t *process_tid_location = (pid_t *)(one_thread.regs.rcx);
+#else
+#error This test has not been ported to this platform.
+#endif
+    pid_t one_thread_id;
+    dumper.CopyFromProcess(&one_thread_id,
+                           dumper.threads()[i],
+                           process_tid_location,
+                           4);
+    EXPECT_EQ(dumper.threads()[i], one_thread_id);
+  }
+  kill(child_pid, SIGKILL);
+}
+
+TEST(LinuxDumperTest, BuildProcPath) {
+  const pid_t pid = getpid();
+  LinuxDumper dumper(pid);
+
+  char maps_path[256] = "dummymappath";
+  char maps_path_expected[256];
+  snprintf(maps_path_expected, sizeof(maps_path_expected),
+           "/proc/%d/maps", pid);
+  dumper.BuildProcPath(maps_path, pid, "maps");
+  ASSERT_STREQ(maps_path, maps_path_expected);
+
+  // In release mode, we expect BuildProcPath to handle the invalid
+  // parameters correctly and fill map_path with an empty
+  // NULL-terminated string.
+#ifdef NDEBUG
+  snprintf(maps_path, sizeof(maps_path), "dummymappath");
+  dumper.BuildProcPath(maps_path, 0, "maps");
+  EXPECT_STREQ(maps_path, "");
+
+  snprintf(maps_path, sizeof(maps_path), "dummymappath");
+  dumper.BuildProcPath(maps_path, getpid(), "");
+  EXPECT_STREQ(maps_path, "");
+
+  snprintf(maps_path, sizeof(maps_path), "dummymappath");
+  dumper.BuildProcPath(maps_path, getpid(), NULL);
+  EXPECT_STREQ(maps_path, "");
+#endif
+}
+
+#if !defined(__ARM_EABI__)
+// Ensure that the linux-gate VDSO is included in the mapping list.
+TEST(LinuxDumperTest, MappingsIncludeLinuxGate) {
+  LinuxDumper dumper(getpid());
+  ASSERT_TRUE(dumper.Init());
+
+  void* linux_gate_loc = dumper.FindBeginningOfLinuxGateSharedLibrary(getpid());
+  ASSERT_TRUE(linux_gate_loc);
+  bool found_linux_gate = false;
+
+  const wasteful_vector<MappingInfo*> mappings = dumper.mappings();
+  const MappingInfo* mapping;
+  for (unsigned i = 0; i < mappings.size(); ++i) {
+    mapping = mappings[i];
+    if (!strcmp(mapping->name, kLinuxGateLibraryName)) {
+      found_linux_gate = true;
+      break;
+    }
+  }
+  EXPECT_TRUE(found_linux_gate);
+  EXPECT_EQ(linux_gate_loc, reinterpret_cast<void*>(mapping->start_addr));
+  EXPECT_EQ(0, memcmp(linux_gate_loc, ELFMAG, SELFMAG));
+}
+
+// Ensure that the linux-gate VDSO can generate a non-zeroed File ID.
+TEST(LinuxDumperTest, LinuxGateMappingID) {
+  LinuxDumper dumper(getpid());
+  ASSERT_TRUE(dumper.Init());
+
+  bool found_linux_gate = false;
+  const wasteful_vector<MappingInfo*> mappings = dumper.mappings();
+  unsigned index = 0;
+  for (unsigned i = 0; i < mappings.size(); ++i) {
+    if (!strcmp(mappings[i]->name, kLinuxGateLibraryName)) {
+      found_linux_gate = true;
+      index = i;
+      break;
+    }
+  }
+  ASSERT_TRUE(found_linux_gate);
+
+  uint8_t identifier[sizeof(MDGUID)];
+  ASSERT_TRUE(dumper.ElfFileIdentifierForMapping(*mappings[index],
+                                                 true,
+                                                 index,
+                                                 identifier));
+  uint8_t empty_identifier[sizeof(MDGUID)];
+  memset(empty_identifier, 0, sizeof(empty_identifier));
+  EXPECT_NE(0, memcmp(empty_identifier, identifier, sizeof(identifier)));
+}
+
+// Ensure that the linux-gate VDSO can generate a non-zeroed File ID
+// from a child process.
+TEST(LinuxDumperTest, LinuxGateMappingIDChild) {
+  int fds[2];
+  ASSERT_NE(-1, pipe(fds));
+
+  // Fork a child so ptrace works.
+  const pid_t child = fork();
+  if (child == 0) {
+    close(fds[1]);
+    // Now wait forever for the parent.
+    char b;
+    HANDLE_EINTR(read(fds[0], &b, sizeof(b)));
+    close(fds[0]);
+    syscall(__NR_exit);
+  }
+  close(fds[0]);
+
+  LinuxDumper dumper(child);
+  ASSERT_TRUE(dumper.Init());
+
+  bool found_linux_gate = false;
+  const wasteful_vector<MappingInfo*> mappings = dumper.mappings();
+  unsigned index = 0;
+  for (unsigned i = 0; i < mappings.size(); ++i) {
+    if (!strcmp(mappings[i]->name, kLinuxGateLibraryName)) {
+      found_linux_gate = true;
+      index = i;
+      break;
+    }
+  }
+  ASSERT_TRUE(found_linux_gate);
+
+  // Need to suspend the child so ptrace actually works.
+  ASSERT_TRUE(dumper.ThreadsSuspend());
+  uint8_t identifier[sizeof(MDGUID)];
+  ASSERT_TRUE(dumper.ElfFileIdentifierForMapping(*mappings[index],
+                                                 true,
+                                                 index,
+                                                 identifier));
+  uint8_t empty_identifier[sizeof(MDGUID)];
+  memset(empty_identifier, 0, sizeof(empty_identifier));
+  EXPECT_NE(0, memcmp(empty_identifier, identifier, sizeof(identifier)));
+  EXPECT_TRUE(dumper.ThreadsResume());
+  close(fds[1]);
+}
+#endif
+
+TEST(LinuxDumperTest, FileIDsMatch) {
+  // Calculate the File ID of our binary using both
+  // FileID::ElfFileIdentifier and LinuxDumper::ElfFileIdentifierForMapping
+  // and ensure that we get the same result from both.
+  char exe_name[PATH_MAX];
+  ssize_t len = readlink("/proc/self/exe", exe_name, PATH_MAX - 1);
+  ASSERT_NE(len, -1);
+  exe_name[len] = '\0';
+
+  int fds[2];
+  ASSERT_NE(-1, pipe(fds));
+
+  // Fork a child so ptrace works.
+  const pid_t child = fork();
+  if (child == 0) {
+    close(fds[1]);
+    // Now wait forever for the parent.
+    char b;
+    HANDLE_EINTR(read(fds[0], &b, sizeof(b)));
+    close(fds[0]);
+    syscall(__NR_exit);
+  }
+  close(fds[0]);
+
+  LinuxDumper dumper(child);
+  ASSERT_TRUE(dumper.Init());
+  const wasteful_vector<MappingInfo*> mappings = dumper.mappings();
+  bool found_exe = false;
+  unsigned i;
+  for (i = 0; i < mappings.size(); ++i) {
+    const MappingInfo* mapping = mappings[i];
+    if (!strcmp(mapping->name, exe_name)) {
+      found_exe = true;
+      break;
+    }
+  }
+  ASSERT_TRUE(found_exe);
+
+  uint8_t identifier1[sizeof(MDGUID)];
+  uint8_t identifier2[sizeof(MDGUID)];
+  EXPECT_TRUE(dumper.ElfFileIdentifierForMapping(*mappings[i], true, i,
+                                                 identifier1));
+  FileID fileid(exe_name);
+  EXPECT_TRUE(fileid.ElfFileIdentifier(identifier2));
+  char identifier_string1[37];
+  char identifier_string2[37];
+  FileID::ConvertIdentifierToString(identifier1, identifier_string1,
+                                    37);
+  FileID::ConvertIdentifierToString(identifier2, identifier_string2,
+                                    37);
+  EXPECT_STREQ(identifier_string1, identifier_string2);
+  close(fds[1]);
+}

thirdparty/breakpad/client/linux/minidump_writer/linux_dumper_unittest_helper.cc

@@ -0,0 +1,85 @@
+// Copyright (c) 2010, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Helper program for the linux_dumper class, which creates a bunch of
+// threads. The first word of each thread's stack is set to the thread
+// id.
+
+#include <pthread.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+
+#include "third_party/lss/linux_syscall_support.h"
+
+#if defined(__ARM_EABI__)
+#define TID_PTR_REGISTER "r3"
+#elif defined(__i386)
+#define TID_PTR_REGISTER "ecx"
+#elif defined(__x86_64)
+#define TID_PTR_REGISTER "rcx"
+#else
+#error This test has not been ported to this platform.
+#endif
+
+void *thread_function(void *data) {
+  volatile pid_t thread_id = syscall(__NR_gettid);
+  register volatile pid_t *thread_id_ptr asm(TID_PTR_REGISTER) = &thread_id;
+  while (true)
+    asm volatile ("" : : "r" (thread_id_ptr));
+  return NULL;
+}
+
+int main(int argc, char *argv[]) {
+  if (argc < 2) {
+    fprintf(stderr,
+            "usage: linux_dumper_unittest_helper <pipe fd> <# of threads\n");
+    return 1;
+  }
+  int pipefd = atoi(argv[1]);
+  int num_threads = atoi(argv[2]);
+  if (num_threads < 1) {
+    fprintf(stderr, "ERROR: number of threads is 0");
+    return 1;
+  }
+  pthread_t threads[num_threads];
+  pthread_attr_t thread_attributes;
+  pthread_attr_init(&thread_attributes);
+  pthread_attr_setdetachstate(&thread_attributes, PTHREAD_CREATE_DETACHED);
+  for (int i = 1; i < num_threads; i++) {
+    pthread_create(&threads[i], &thread_attributes, &thread_function, NULL);
+  }
+  // Signal parent that this process has started all threads.
+  uint8_t byte = 1;
+  write(pipefd, &byte, sizeof(byte));
+  thread_function(NULL);
+  return 0;
+}

thirdparty/breakpad/client/linux/minidump_writer/minidump_extension_linux.h

@@ -0,0 +1,75 @@
+/* Copyright (c) 2010, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
+
+/* minidump_extension_linux.h: A definition of exception codes for
+ * Linux
+ *
+ * (This is C99 source, please don't corrupt it with C++.)
+ *
+ * Author: Adam Langley
+ * Split into its own file: Markus Gutschke */
+
+
+#ifndef SRC_CLIENT_LINUX_MINIDUMP_WRITER_MINIDUMP_EXTENSION_LINUX_H_
+#define SRC_CLIENT_LINUX_MINIDUMP_WRITER_MINIDUMP_EXTENSION_LINUX_H_
+
+#include <stddef.h>
+
+#include "google_breakpad/common/breakpad_types.h"
+#include "google_breakpad/common/minidump_format.h"
+
+// These are additional minidump stream values which are specific to the linux
+// breakpad implementation.
+enum {
+  MD_LINUX_CPU_INFO              = 0x47670003,    /* /proc/cpuinfo    */
+  MD_LINUX_PROC_STATUS           = 0x47670004,    /* /proc/$x/status  */
+  MD_LINUX_LSB_RELEASE           = 0x47670005,    /* /etc/lsb-release */
+  MD_LINUX_CMD_LINE              = 0x47670006,    /* /proc/$x/cmdline */
+  MD_LINUX_ENVIRON               = 0x47670007,    /* /proc/$x/environ */
+  MD_LINUX_AUXV                  = 0x47670008,    /* /proc/$x/auxv    */
+  MD_LINUX_MAPS                  = 0x47670009,    /* /proc/$x/maps    */
+  MD_LINUX_DSO_DEBUG             = 0x4767000A     /* DSO data         */
+};
+
+typedef struct {
+  void*     addr;
+  MDRVA     name;
+  void*     ld;
+} MDRawLinkMap;
+
+typedef struct {
+  u_int32_t version;
+  MDRVA     map;
+  u_int32_t dso_count;
+  void*     brk;
+  void*     ldbase;
+  void*     dynamic;
+} MDRawDebug;
+
+#endif  // SRC_CLIENT_LINUX_MINIDUMP_WRITER_MINIDUMP_EXTENSION_LINUX_H_

thirdparty/breakpad/client/linux/minidump_writer/minidump_writer.h

@@ -0,0 +1,67 @@
+// Copyright (c) 2009, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CLIENT_LINUX_MINIDUMP_WRITER_MINIDUMP_WRITER_H_
+#define CLIENT_LINUX_MINIDUMP_WRITER_MINIDUMP_WRITER_H_
+
+#include <stdint.h>
+#include <unistd.h>
+
+#include <list>
+#include <utility>
+
+#include "google_breakpad/common/minidump_format.h"
+
+namespace google_breakpad {
+
+// A list of <MappingInfo, GUID>
+typedef std::pair<struct MappingInfo, u_int8_t[sizeof(MDGUID)]> MappingEntry;
+typedef std::list<MappingEntry> MappingList;
+
+// Write a minidump to the filesystem. This function does not malloc nor use
+// libc functions which may. Thus, it can be used in contexts where the state
+// of the heap may be corrupt.
+//   filename: the filename to write to. This is opened O_EXCL and fails if
+//     open fails.
+//   crashing_process: the pid of the crashing process. This must be trusted.
+//   blob: a blob of data from the crashing process. See exception_handler.h
+//   blob_size: the length of |blob|, in bytes
+//
+// Returns true iff successful.
+bool WriteMinidump(const char* filename, pid_t crashing_process,
+                   const void* blob, size_t blob_size);
+
+// This overload also allows passing a list of known mappings.
+bool WriteMinidump(const char* filename, pid_t crashing_process,
+                   const void* blob, size_t blob_size,
+                   const MappingList& mappings);
+
+}  // namespace google_breakpad
+
+#endif  // CLIENT_LINUX_MINIDUMP_WRITER_MINIDUMP_WRITER_H_

thirdparty/breakpad/client/linux/minidump_writer/minidump_writer_unittest.cc

@@ -0,0 +1,396 @@
+// Copyright (c) 2011 Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include <fcntl.h>
+#include <sys/poll.h>
+#include <sys/stat.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <string>
+
+#include "breakpad_googletest_includes.h"
+#include "client/linux/handler/exception_handler.h"
+#include "client/linux/minidump_writer/linux_dumper.h"
+#include "client/linux/minidump_writer/minidump_writer.h"
+#include "common/linux/eintr_wrapper.h"
+#include "common/linux/file_id.h"
+#include "google_breakpad/processor/minidump.h"
+
+using namespace google_breakpad;
+
+#if !defined(__ANDROID__)
+#define TEMPDIR "/tmp"
+#else
+#define TEMPDIR "/data/local/tmp"
+#endif
+
+// Length of a formatted GUID string =
+// sizeof(MDGUID) * 2 + 4 (for dashes) + 1 (null terminator)
+const int kGUIDStringSize = 37;
+
+namespace {
+typedef testing::Test MinidumpWriterTest;
+}
+
+TEST(MinidumpWriterTest, Setup) {
+  int fds[2];
+  ASSERT_NE(-1, pipe(fds));
+
+  const pid_t child = fork();
+  if (child == 0) {
+    close(fds[1]);
+    char b;
+    HANDLE_EINTR(read(fds[0], &b, sizeof(b)));
+    close(fds[0]);
+    syscall(__NR_exit);
+  }
+  close(fds[0]);
+
+  ExceptionHandler::CrashContext context;
+  memset(&context, 0, sizeof(context));
+
+  char templ[] = TEMPDIR "/minidump-writer-unittest-XXXXXX";
+  mktemp(templ);
+  // Set a non-zero tid to avoid tripping asserts.
+  context.tid = 1;
+  ASSERT_TRUE(WriteMinidump(templ, child, &context, sizeof(context)));
+  struct stat st;
+  ASSERT_EQ(stat(templ, &st), 0);
+  ASSERT_GT(st.st_size, 0u);
+  unlink(templ);
+
+  close(fds[1]);
+}
+
+// Test that mapping info can be specified when writing a minidump,
+// and that it ends up in the module list of the minidump.
+TEST(MinidumpWriterTest, MappingInfo) {
+  int fds[2];
+  ASSERT_NE(-1, pipe(fds));
+
+  // These are defined here so the parent can use them to check the
+  // data from the minidump afterwards.
+  const u_int32_t kMemorySize = sysconf(_SC_PAGESIZE);
+  const char* kMemoryName = "a fake module";
+  const u_int8_t kModuleGUID[sizeof(MDGUID)] = {
+    0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
+    0x88, 0x99, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF
+  };
+  char module_identifier_buffer[kGUIDStringSize];
+  FileID::ConvertIdentifierToString(kModuleGUID,
+                                    module_identifier_buffer,
+                                    sizeof(module_identifier_buffer));
+  string module_identifier(module_identifier_buffer);
+  // Strip out dashes
+  size_t pos;
+  while ((pos = module_identifier.find('-')) != string::npos) {
+    module_identifier.erase(pos, 1);
+  }
+  // And append a zero, because module IDs include an "age" field
+  // which is always zero on Linux.
+  module_identifier += "0";
+
+  // Get some memory.
+  char* memory =
+    reinterpret_cast<char*>(mmap(NULL,
+                                 kMemorySize,
+                                 PROT_READ | PROT_WRITE,
+                                 MAP_PRIVATE | MAP_ANON,
+                                 -1,
+                                 0));
+  const u_int64_t kMemoryAddress = reinterpret_cast<u_int64_t>(memory);
+  ASSERT_TRUE(memory);
+
+  const pid_t child = fork();
+  if (child == 0) {
+    close(fds[1]);
+    char b;
+    HANDLE_EINTR(read(fds[0], &b, sizeof(b)));
+    close(fds[0]);
+    syscall(__NR_exit);
+  }
+  close(fds[0]);
+
+  ExceptionHandler::CrashContext context;
+  memset(&context, 0, sizeof(context));
+  context.tid = 1;
+
+  char templ[] = TEMPDIR "/minidump-writer-unittest-XXXXXX";
+  mktemp(templ);
+
+  // Add information about the mapped memory.
+  MappingInfo info;
+  info.start_addr = kMemoryAddress;
+  info.size = kMemorySize;
+  info.offset = 0;
+  strcpy(info.name, kMemoryName);
+
+  MappingList mappings;
+  MappingEntry mapping;
+  mapping.first = info;
+  memcpy(mapping.second, kModuleGUID, sizeof(MDGUID));
+  mappings.push_back(mapping);
+  ASSERT_TRUE(WriteMinidump(templ, child, &context, sizeof(context), mappings));
+
+  // Read the minidump. Load the module list, and ensure that
+  // the mmap'ed |memory| is listed with the given module name
+  // and debug ID.
+  Minidump minidump(templ);
+  ASSERT_TRUE(minidump.Read());
+
+  MinidumpModuleList* module_list = minidump.GetModuleList();
+  ASSERT_TRUE(module_list);
+  const MinidumpModule* module =
+    module_list->GetModuleForAddress(kMemoryAddress);
+  ASSERT_TRUE(module);
+
+  EXPECT_EQ(kMemoryAddress, module->base_address());
+  EXPECT_EQ(kMemorySize, module->size());
+  EXPECT_EQ(kMemoryName, module->code_file());
+  EXPECT_EQ(module_identifier, module->debug_identifier());
+
+  unlink(templ);
+  close(fds[1]);
+}
+
+// Test that mapping info can be specified, and that it overrides
+// existing mappings that are wholly contained within the specified
+// range.
+TEST(MinidumpWriterTest, MappingInfoContained) {
+  int fds[2];
+  ASSERT_NE(-1, pipe(fds));
+
+  // These are defined here so the parent can use them to check the
+  // data from the minidump afterwards.
+  const u_int32_t kMemorySize = sysconf(_SC_PAGESIZE);
+  const char* kMemoryName = "a fake module";
+  const u_int8_t kModuleGUID[sizeof(MDGUID)] = {
+    0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
+    0x88, 0x99, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF
+  };
+  char module_identifier_buffer[kGUIDStringSize];
+  FileID::ConvertIdentifierToString(kModuleGUID,
+                                    module_identifier_buffer,
+                                    sizeof(module_identifier_buffer));
+  string module_identifier(module_identifier_buffer);
+  // Strip out dashes
+  size_t pos;
+  while ((pos = module_identifier.find('-')) != string::npos) {
+    module_identifier.erase(pos, 1);
+  }
+  // And append a zero, because module IDs include an "age" field
+  // which is always zero on Linux.
+  module_identifier += "0";
+
+  // mmap a file
+  char tempfile[] = TEMPDIR "/minidump-writer-unittest-temp-XXXXXX";
+  mktemp(tempfile);
+  int fd = open(tempfile, O_RDWR | O_CREAT, 0);
+  ASSERT_NE(-1, fd);
+  unlink(tempfile);
+  // fill with zeros
+  char buffer[kMemorySize];
+  memset(buffer, 0, kMemorySize);
+  ASSERT_EQ(kMemorySize, write(fd, buffer, kMemorySize));
+  lseek(fd, 0, SEEK_SET);
+
+  char* memory =
+    reinterpret_cast<char*>(mmap(NULL,
+                                 kMemorySize,
+                                 PROT_READ | PROT_WRITE,
+                                 MAP_PRIVATE,
+                                 fd,
+                                 0));
+  const u_int64_t kMemoryAddress = reinterpret_cast<u_int64_t>(memory);
+  ASSERT_TRUE(memory);
+  close(fd);
+
+  const pid_t child = fork();
+  if (child == 0) {
+    close(fds[1]);
+    char b;
+    HANDLE_EINTR(read(fds[0], &b, sizeof(b)));
+    close(fds[0]);
+    syscall(__NR_exit);
+  }
+  close(fds[0]);
+
+  ExceptionHandler::CrashContext context;
+  memset(&context, 0, sizeof(context));
+  context.tid = 1;
+
+  char dumpfile[] = TEMPDIR "/minidump-writer-unittest-XXXXXX";
+  mktemp(dumpfile);
+
+  // Add information about the mapped memory. Report it as being larger than
+  // it actually is.
+  MappingInfo info;
+  info.start_addr = kMemoryAddress - kMemorySize;
+  info.size = kMemorySize * 3;
+  info.offset = 0;
+  strcpy(info.name, kMemoryName);
+
+  MappingList mappings;
+  MappingEntry mapping;
+  mapping.first = info;
+  memcpy(mapping.second, kModuleGUID, sizeof(MDGUID));
+  mappings.push_back(mapping);
+  ASSERT_TRUE(
+      WriteMinidump(dumpfile, child, &context, sizeof(context), mappings));
+
+  // Read the minidump. Load the module list, and ensure that
+  // the mmap'ed |memory| is listed with the given module name
+  // and debug ID.
+  Minidump minidump(dumpfile);
+  ASSERT_TRUE(minidump.Read());
+
+  MinidumpModuleList* module_list = minidump.GetModuleList();
+  ASSERT_TRUE(module_list);
+  const MinidumpModule* module =
+    module_list->GetModuleForAddress(kMemoryAddress);
+  ASSERT_TRUE(module);
+
+  EXPECT_EQ(info.start_addr, module->base_address());
+  EXPECT_EQ(info.size, module->size());
+  EXPECT_EQ(kMemoryName, module->code_file());
+  EXPECT_EQ(module_identifier, module->debug_identifier());
+
+  unlink(dumpfile);
+  close(fds[1]);
+}
+
+TEST(MinidumpWriterTest, DeletedBinary) {
+  static const int kNumberOfThreadsInHelperProgram = 1;
+  char kNumberOfThreadsArgument[2];
+  sprintf(kNumberOfThreadsArgument, "%d", kNumberOfThreadsInHelperProgram);
+
+  // Locate helper binary next to the current binary.
+  char self_path[PATH_MAX];
+  if (readlink("/proc/self/exe", self_path, sizeof(self_path) - 1) == -1) {
+    FAIL() << "readlink failed: " << strerror(errno);
+    exit(1);
+  }
+  string helper_path(self_path);
+  size_t pos = helper_path.rfind('/');
+  if (pos == string::npos) {
+    FAIL() << "no trailing slash in path: " << helper_path;
+    exit(1);
+  }
+  helper_path.erase(pos + 1);
+  helper_path += "linux_dumper_unittest_helper";
+
+  // Copy binary to a temp file.
+  char binpath[] = TEMPDIR "/linux-dumper-unittest-helper-XXXXXX";
+  mktemp(binpath);
+  char cmdline[2 * PATH_MAX];
+  sprintf(cmdline, "/bin/cp \"%s\" \"%s\"", helper_path.c_str(), binpath);
+  ASSERT_EQ(0, system(cmdline));
+  ASSERT_EQ(0, chmod(binpath, 0755));
+
+  int fds[2];
+  ASSERT_NE(-1, pipe(fds));
+
+  pid_t child_pid = fork();
+  if (child_pid == 0) {
+    // In child process.
+    close(fds[0]);
+
+    // Pass the pipe fd and the number of threads as arguments.
+    char pipe_fd_string[8];
+    sprintf(pipe_fd_string, "%d", fds[1]);
+    execl(binpath,
+          binpath,
+          pipe_fd_string,
+          kNumberOfThreadsArgument,
+          NULL);
+  }
+  close(fds[1]);
+  // Wait for the child process to signal that it's ready.
+  struct pollfd pfd;
+  memset(&pfd, 0, sizeof(pfd));
+  pfd.fd = fds[0];
+  pfd.events = POLLIN | POLLERR;
+
+  const int r = HANDLE_EINTR(poll(&pfd, 1, 1000));
+  ASSERT_EQ(1, r);
+  ASSERT_TRUE(pfd.revents & POLLIN);
+  uint8_t junk;
+  read(fds[0], &junk, sizeof(junk));
+  close(fds[0]);
+
+  // Child is ready now.
+  // Unlink the test binary.
+  unlink(binpath);
+
+  ExceptionHandler::CrashContext context;
+  memset(&context, 0, sizeof(context));
+
+  char templ[] = TEMPDIR "/minidump-writer-unittest-XXXXXX";
+  mktemp(templ);
+  // Set a non-zero tid to avoid tripping asserts.
+  context.tid = 1;
+  ASSERT_TRUE(WriteMinidump(templ, child_pid, &context, sizeof(context)));
+  kill(child_pid, SIGKILL);
+
+  struct stat st;
+  ASSERT_EQ(stat(templ, &st), 0);
+  ASSERT_GT(st.st_size, 0u);
+
+
+
+  Minidump minidump(templ);
+  ASSERT_TRUE(minidump.Read());
+
+  // Check that the main module filename is correct.
+  MinidumpModuleList* module_list = minidump.GetModuleList();
+  ASSERT_TRUE(module_list);
+  const MinidumpModule* module = module_list->GetMainModule();
+  EXPECT_STREQ(binpath, module->code_file().c_str());
+  // Check that the file ID is correct.
+  FileID fileid(helper_path.c_str());
+  uint8_t identifier[sizeof(MDGUID)];
+  EXPECT_TRUE(fileid.ElfFileIdentifier(identifier));
+  char identifier_string[kGUIDStringSize];
+  FileID::ConvertIdentifierToString(identifier,
+                                    identifier_string,
+                                    kGUIDStringSize);
+  string module_identifier(identifier_string);
+  // Strip out dashes
+  while ((pos = module_identifier.find('-')) != string::npos) {
+    module_identifier.erase(pos, 1);
+  }
+  // And append a zero, because module IDs include an "age" field
+  // which is always zero on Linux.
+  module_identifier += "0";
+  EXPECT_EQ(module_identifier, module->debug_identifier());
+
+  unlink(templ);
+}

thirdparty/breakpad/client/linux/sender/google_crash_report_sender.cc

@@ -0,0 +1,104 @@
+// Copyright (c) 2009, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "common/linux/google_crashdump_uploader.h"
+#include "third_party/linux/include/gflags/gflags.h"
+#include <string>
+#include <iostream>
+
+using std::string;
+
+DEFINE_string(crash_server, "http://clients2.google.com/cr",
+              "The crash server to upload minidumps to.");
+DEFINE_string(product_name, "",
+              "The product name that the minidump corresponds to.");
+DEFINE_string(product_version, "",
+              "The version of the product that produced the minidump.");
+DEFINE_string(client_id, "",
+              "The client GUID");
+DEFINE_string(minidump_path, "",
+              "The path of the minidump file.");
+DEFINE_string(ptime, "",
+              "The process uptime in milliseconds.");
+DEFINE_string(ctime, "",
+              "The cumulative process uptime in milliseconds.");
+DEFINE_string(email, "",
+              "The user's email address.");
+DEFINE_string(comments, "",
+              "Extra user comments");
+DEFINE_string(proxy_host, "",
+              "Proxy host");
+DEFINE_string(proxy_userpasswd, "",
+              "Proxy username/password in user:pass format.");
+
+
+bool CheckForRequiredFlagsOrDie() {
+  std::string error_text = "";
+  if (FLAGS_product_name.empty()) {
+    error_text.append("\nProduct name must be specified.");
+  }
+
+  if (FLAGS_product_version.empty()) {
+    error_text.append("\nProduct version must be specified.");
+  }
+
+  if (FLAGS_client_id.empty()) {
+    error_text.append("\nClient ID must be specified.");
+  }
+
+  if (FLAGS_minidump_path.empty()) {
+    error_text.append("\nMinidump pathname must be specified.");
+  }
+
+  if (!error_text.empty()) {
+    std::cout << error_text;
+    return false;
+  }
+  return true;
+}
+
+int main(int argc, char *argv[]) {
+  google::InitGoogleLogging(argv[0]);
+  google::ParseCommandLineFlags(&argc, &argv, true);
+  if (!CheckForRequiredFlagsOrDie()) {
+    return 1;
+  }
+  google_breakpad::GoogleCrashdumpUploader g(FLAGS_product_name,
+                                             FLAGS_product_version,
+                                             FLAGS_client_id,
+                                             FLAGS_ptime,
+                                             FLAGS_ctime,
+                                             FLAGS_email,
+                                             FLAGS_comments,
+                                             FLAGS_minidump_path,
+                                             FLAGS_crash_server,
+                                             FLAGS_proxy_host,
+                                             FLAGS_proxy_userpasswd);
+  g.Upload();
+}

thirdparty/breakpad/client/mac/Framework/Breakpad.h

@@ -0,0 +1,316 @@
+// Copyright (c) 2006, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Framework to provide a simple C API to crash reporting for
+// applications.  By default, if any machine-level exception (e.g.,
+// EXC_BAD_ACCESS) occurs, it will be handled by the BreakpadRef
+// object as follows:
+//
+// 1. Create a minidump file (see Breakpad for details)
+// 2. Prompt the user (using CFUserNotification)
+// 3. Invoke a command line reporting tool to send the minidump to a
+//    server
+//
+// By specifying parameters to the BreakpadCreate function, you can
+// modify the default behavior to suit your needs and wants and
+// desires.
+
+typedef void *BreakpadRef;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <CoreFoundation/CoreFoundation.h>
+#include <Foundation/Foundation.h>
+
+// Keys for configuration file
+#define kReporterMinidumpDirectoryKey "MinidumpDir"
+#define kReporterMinidumpIDKey        "MinidumpID"
+
+// Filename for recording uploaded IDs
+#define kReporterLogFilename          "uploads.log"
+
+// The default subdirectory of the Library to put crash dumps in
+// The subdirectory is
+//  ~/Library/<kDefaultLibrarySubdirectory>/<GoogleBreakpadProduct>
+#define kDefaultLibrarySubdirectory   "Breakpad"
+
+// Specify some special keys to be used in the configuration file that is
+// generated by Breakpad and consumed by the crash_sender.
+#define BREAKPAD_PRODUCT               "BreakpadProduct"
+#define BREAKPAD_PRODUCT_DISPLAY       "BreakpadProductDisplay"
+#define BREAKPAD_VERSION               "BreakpadVersion"
+#define BREAKPAD_VENDOR                "BreakpadVendor"
+#define BREAKPAD_URL                   "BreakpadURL"
+#define BREAKPAD_REPORT_INTERVAL       "BreakpadReportInterval"
+#define BREAKPAD_SKIP_CONFIRM          "BreakpadSkipConfirm"
+#define BREAKPAD_CONFIRM_TIMEOUT       "BreakpadConfirmTimeout"
+#define BREAKPAD_SEND_AND_EXIT         "BreakpadSendAndExit"
+#define BREAKPAD_DUMP_DIRECTORY        "BreakpadMinidumpLocation"
+#define BREAKPAD_INSPECTOR_LOCATION    "BreakpadInspectorLocation"
+#define BREAKPAD_REPORTER_EXE_LOCATION \
+  "BreakpadReporterExeLocation"
+#define BREAKPAD_LOGFILES              "BreakpadLogFiles"
+#define BREAKPAD_LOGFILE_UPLOAD_SIZE   "BreakpadLogFileTailSize"
+#define BREAKPAD_REQUEST_COMMENTS      "BreakpadRequestComments"
+#define BREAKPAD_COMMENTS              "BreakpadComments"
+#define BREAKPAD_REQUEST_EMAIL         "BreakpadRequestEmail"
+#define BREAKPAD_EMAIL                 "BreakpadEmail"
+#define BREAKPAD_SERVER_TYPE           "BreakpadServerType"
+#define BREAKPAD_SERVER_PARAMETER_DICT "BreakpadServerParameters"
+
+// The keys below are NOT user supplied, and are used internally.
+#define BREAKPAD_PROCESS_START_TIME       "BreakpadProcStartTime"
+#define BREAKPAD_PROCESS_UP_TIME          "BreakpadProcessUpTime"
+#define BREAKPAD_PROCESS_CRASH_TIME       "BreakpadProcessCrashTime"
+#define BREAKPAD_LOGFILE_KEY_PREFIX       "BreakpadAppLogFile"
+#define BREAKPAD_SERVER_PARAMETER_PREFIX  "BreakpadServerParameterPrefix_"
+#define BREAKPAD_ON_DEMAND                "BreakpadOnDemand"
+
+// Optional user-defined function to dec to decide if we should handle
+// this crash or forward it along.
+// Return true if you want Breakpad to handle it.
+// Return false if you want Breakpad to skip it
+// The exception handler always returns false, as if SEND_AND_EXIT were false
+// (which means the next exception handler will take the exception)
+typedef bool (*BreakpadFilterCallback)(int exception_type,
+                                       int exception_code,
+                                       mach_port_t crashing_thread,
+                                       void *context);
+
+// Create a new BreakpadRef object and install it as an exception
+// handler.  The |parameters| will typically be the contents of your
+// bundle's Info.plist.
+//
+// You can also specify these additional keys for customizable behavior:
+// Key:                           Value:
+// BREAKPAD_PRODUCT               Product name (e.g., "MyAwesomeProduct")
+//                                This one is used as the key to identify
+//                                the product when uploading. Falls back to
+//                                CFBundleName if not specified.
+//                                REQUIRED
+//
+// BREAKPAD_PRODUCT_DISPLAY       This is the display name, e.g. a pretty
+//                                name for the product when the crash_sender
+//                                pops up UI for the user. Falls back first to
+//                                CFBundleDisplayName and then to
+//                                BREAKPAD_PRODUCT if not specified.
+//
+// BREAKPAD_VERSION               Product version (e.g., 1.2.3), used
+//                                as metadata for crash report. Falls back to
+//                                CFBundleVersion if not specified.
+//                                REQUIRED
+//
+// BREAKPAD_VENDOR                Vendor name, used in UI (e.g. "A report has
+//                                been created that you can send to <vendor>")
+//
+// BREAKPAD_URL                   URL destination for reporting
+//                                REQUIRED
+//
+// BREAKPAD_REPORT_INTERVAL       # of seconds between sending
+//                                reports.  If an additional report is
+//                                generated within this time, it will
+//                                be ignored.  Default: 3600sec.
+//                                Specify 0 to send all reports.
+//
+// BREAKPAD_SKIP_CONFIRM          If true, the reporter will send the report
+//                                without any user intervention.
+//                                Defaults to NO
+//
+// BREAKPAD_CONFIRM_TIMEOUT       Number of seconds before the upload
+//                                confirmation dialog will be automatically
+//                                dismissed (cancelling the upload).
+//                                Default: 300 seconds (min of 60).
+//                                Specify 0 to prevent timeout.
+//
+// BREAKPAD_SEND_AND_EXIT         If true, the handler will exit after sending.
+//                                This will prevent any other handler (e.g.,
+//                                CrashReporter) from getting the crash.
+//                                Defaults TO YES
+//
+// BREAKPAD_DUMP_DIRECTORY        The directory to store crash-dumps
+//                                in. By default, we use
+//                                ~/Library/Breakpad/<BREAKPAD_PRODUCT>
+//                                The path you specify here is tilde-expanded.
+//
+// BREAKPAD_INSPECTOR_LOCATION    The full path to the Inspector executable.
+//                                Defaults to <Framework resources>/Inspector
+//
+// BREAKPAD_REPORTER_EXE_LOCATION The full path to the Reporter/sender
+//                                executable.
+//                                Default:
+//                                <Framework Resources>/crash_report_sender.app
+//
+// BREAKPAD_LOGFILES              Indicates an array of log file paths that
+//                                should be uploaded at crash time.
+//
+// BREAKPAD_REQUEST_COMMENTS      If true, the message dialog will have a
+//                                text box for the user to enter comments.
+//                                Default: NO
+//
+// BREAKPAD_REQUEST_EMAIL         If true and BREAKPAD_REQUEST_COMMENTS is also
+//                                true, the message dialog will have a text
+//                                box for the user to enter their email address.
+//                                Default: NO
+//
+// BREAKPAD_SERVER_TYPE           A parameter that tells Breakpad how to
+//                                rewrite the upload parameters for a specific
+//                                server type.  The currently valid values are
+//                                'socorro' or 'google'.  If you want to add
+//                                other types, see the function in
+//                                crash_report_sender.m that maps parameters to
+//                                URL parameters.  Defaults to 'google'.
+//
+// BREAKPAD_SERVER_PARAMETER_DICT A plist dictionary of static
+//                                parameters that are uploaded to the
+//                                server.  The parameters are sent as
+//                                is to the crash server.  Their
+//                                content isn't added to the minidump
+//                                but pass as URL parameters when
+//                                uploading theminidump to the crash
+//                                server.
+//=============================================================================
+// The BREAKPAD_PRODUCT, BREAKPAD_VERSION and BREAKPAD_URL are
+// required to have non-NULL values.  By default, the BREAKPAD_PRODUCT
+// will be the CFBundleName and the BREAKPAD_VERSION will be the
+// CFBundleVersion when these keys are present in the bundle's
+// Info.plist, which is usually passed in to BreakpadCreate() as an
+// NSDictionary (you could also pass in another dictionary that had
+// the same keys configured).  If the BREAKPAD_PRODUCT or
+// BREAKPAD_VERSION are ultimately undefined, BreakpadCreate() will
+// fail.  You have been warned.
+//
+// If you are running in a debugger, Breakpad will not install, unless the
+// BREAKPAD_IGNORE_DEBUGGER envionment variable is set and/or non-zero.
+//
+// The BREAKPAD_SKIP_CONFIRM and BREAKPAD_SEND_AND_EXIT default
+// values are NO and YES.  However, they can be controlled by setting their
+// values in a user or global plist.
+//
+// It's easiest to use Breakpad via the Framework, but if you're compiling the
+// code in directly, BREAKPAD_INSPECTOR_LOCATION and
+// BREAKPAD_REPORTER_EXE_LOCATION allow you to specify custom paths
+// to the helper executables.
+//
+//=============================================================================
+// The following are NOT user-supplied but are documented here for
+// completeness.  They are calculated by Breakpad during initialization &
+// crash-dump generation, or entered in by the user.
+//
+// BREAKPAD_PROCESS_START_TIME       The time the process started.
+//
+// BREAKPAD_PROCESS_CRASH_TIME       The time the process crashed.
+//
+// BREAKPAD_PROCESS_UP_TIME          The total time the process has been
+//                                   running.  This parameter is not set
+//                                   until the crash-dump-generation phase.
+//
+// BREAKPAD_LOGFILE_KEY_PREFIX       Used to find out which parameters in the
+//                                   parameter dictionary correspond to log
+//                                   file paths.
+//
+// BREAKPAD_SERVER_PARAMETER_PREFIX  This prefix is used by Breakpad
+//                                   internally, because Breakpad uses
+//                                   the same dictionary internally to
+//                                   track both its internal
+//                                   configuration parameters and
+//                                   parameters meant to be uploaded
+//                                   to the server.  This string is
+//                                   used internally by Breakpad to
+//                                   prefix user-supplied parameter
+//                                   names so those can be sent to the
+//                                   server without leaking Breakpad's
+//                                   internal values.
+//
+// BREAKPAD_ON_DEMAND                Used internally to indicate to the
+//                                   Reporter that we're sending on-demand,
+//                                   not as result of a crash.
+//
+// BREAKPAD_COMMENTS                 The text the user provided as comments.
+//                                   Only used in crash_report_sender.
+
+// Returns a new BreakpadRef object on success, NULL otherwise.
+BreakpadRef BreakpadCreate(NSDictionary *parameters);
+
+// Uninstall and release the data associated with |ref|.
+void BreakpadRelease(BreakpadRef ref);
+
+// Clients may set an optional callback which gets called when a crash
+// occurs.  The callback function should return |true| if we should
+// handle the crash, generate a crash report, etc. or |false| if we
+// should ignore it and forward the crash (normally to CrashReporter).
+// Context is a pointer to arbitrary data to make the callback with.
+void BreakpadSetFilterCallback(BreakpadRef ref,
+                               BreakpadFilterCallback callback,
+                               void *context);
+
+// User defined key and value string storage.  Generally this is used
+// to configure Breakpad's internal operation, such as whether the
+// crash_sender should prompt the user, or the filesystem location for
+// the minidump file.  See Breakpad.h for some parameters that can be
+// set.  Anything longer than 255 bytes will be truncated. Note that
+// the string is converted to UTF8 before truncation, so any multibyte
+// character that straddles the 255(256 - 1 for terminator) byte limit
+// will be mangled.
+//
+// A maximum number of 64 key/value pairs are supported.  An assert()
+// will fire if more than this number are set.  Unfortunately, right
+// now, the same dictionary is used for both Breakpad's parameters AND
+// the Upload parameters.
+//
+// TODO (nealsid): Investigate how necessary this is if we don't
+// automatically upload parameters to the server anymore.
+// TODO (nealsid): separate server parameter dictionary from the
+// dictionary used to configure Breakpad, and document limits for each
+// independently.
+void BreakpadSetKeyValue(BreakpadRef ref, NSString *key, NSString *value);
+NSString *BreakpadKeyValue(BreakpadRef ref, NSString *key);
+void BreakpadRemoveKeyValue(BreakpadRef ref, NSString *key);
+
+// You can use this method to specify parameters that will be uploaded
+// to the crash server.  They will be automatically encoded as
+// necessary.  Note that as mentioned above there are limits on both
+// the number of keys and their length.
+void BreakpadAddUploadParameter(BreakpadRef ref, NSString *key,
+                                NSString *value);
+
+// This method will remove a previously-added parameter from the
+// upload parameter set.
+void BreakpadRemoveUploadParameter(BreakpadRef ref, NSString *key);
+
+// Add a log file for Breakpad to read and send upon crash dump
+void BreakpadAddLogFile(BreakpadRef ref, NSString *logPathname);
+
+// Generate a minidump and send
+void BreakpadGenerateAndSendReport(BreakpadRef ref);
+
+#ifdef __cplusplus
+}
+#endif

thirdparty/breakpad/client/mac/Framework/Breakpad.mm

@@ -0,0 +1,996 @@
+// Copyright (c) 2006, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+
+#define VERBOSE 0
+
+#if VERBOSE
+  static bool gDebugLog = true;
+#else
+  static bool gDebugLog = false;
+#endif
+
+#define DEBUGLOG if (gDebugLog) fprintf
+#define IGNORE_DEBUGGER "BREAKPAD_IGNORE_DEBUGGER"
+
+#import "common/mac/MachIPC.h"
+#import "common/mac/SimpleStringDictionary.h"
+
+#import "client/mac/crash_generation/Inspector.h"
+#import "client/mac/handler/exception_handler.h"
+#import "client/mac/Framework/Breakpad.h"
+#import "client/mac/Framework/OnDemandServer.h"
+#import "client/mac/handler/protected_memory_allocator.h"
+
+#import <sys/stat.h>
+#import <sys/sysctl.h>
+
+#import <Foundation/Foundation.h>
+
+
+using google_breakpad::KeyValueEntry;
+using google_breakpad::MachPortSender;
+using google_breakpad::MachReceiveMessage;
+using google_breakpad::MachSendMessage;
+using google_breakpad::ReceivePort;
+using google_breakpad::SimpleStringDictionary;
+using google_breakpad::SimpleStringDictionaryIterator;
+
+//=============================================================================
+// We want any memory allocations which are used by breakpad during the
+// exception handling process (after a crash has happened) to be read-only
+// to prevent them from being smashed before a crash occurs.  Unfortunately
+// we cannot protect against smashes to our exception handling thread's
+// stack.
+//
+// NOTE: Any memory allocations which are not used during the exception
+// handling process may be allocated in the normal ways.
+//
+// The ProtectedMemoryAllocator class provides an Allocate() method which
+// we'll using in conjunction with placement operator new() to control
+// allocation of C++ objects.  Note that we don't use operator delete()
+// but instead call the objects destructor directly:  object->~ClassName();
+//
+ProtectedMemoryAllocator *gMasterAllocator = NULL;
+ProtectedMemoryAllocator *gKeyValueAllocator = NULL;
+ProtectedMemoryAllocator *gBreakpadAllocator = NULL;
+
+// Mutex for thread-safe access to the key/value dictionary used by breakpad.
+// It's a global instead of an instance variable of Breakpad
+// since it can't live in a protected memory area.
+pthread_mutex_t gDictionaryMutex;
+
+//=============================================================================
+// Stack-based object for thread-safe access to a memory-protected region.
+// It's assumed that normally the memory block (allocated by the allocator)
+// is protected (read-only).  Creating a stack-based instance of
+// ProtectedMemoryLocker will unprotect this block after taking the lock.
+// Its destructor will first re-protect the memory then release the lock.
+class ProtectedMemoryLocker {
+public:
+  // allocator may be NULL, in which case no Protect() or Unprotect() calls
+  // will be made, but a lock will still be taken
+  ProtectedMemoryLocker(pthread_mutex_t *mutex,
+                        ProtectedMemoryAllocator *allocator)
+  : mutex_(mutex), allocator_(allocator) {
+    // Lock the mutex
+    assert(pthread_mutex_lock(mutex_) == 0);
+
+    // Unprotect the memory
+    if (allocator_ ) {
+      allocator_->Unprotect();
+    }
+  }
+
+  ~ProtectedMemoryLocker() {
+    // First protect the memory
+    if (allocator_) {
+      allocator_->Protect();
+    }
+
+    // Then unlock the mutex
+    assert(pthread_mutex_unlock(mutex_) == 0);
+  };
+
+private:
+  //  Keep anybody from ever creating one of these things not on the stack.
+  ProtectedMemoryLocker() { }
+  ProtectedMemoryLocker(const ProtectedMemoryLocker&);
+  ProtectedMemoryLocker & operator=(ProtectedMemoryLocker&);
+
+  pthread_mutex_t           *mutex_;
+  ProtectedMemoryAllocator  *allocator_;
+};
+
+//=============================================================================
+class Breakpad {
+ public:
+  // factory method
+  static Breakpad *Create(NSDictionary *parameters) {
+    // Allocate from our special allocation pool
+    Breakpad *breakpad =
+      new (gBreakpadAllocator->Allocate(sizeof(Breakpad)))
+        Breakpad();
+
+    if (!breakpad)
+      return NULL;
+
+    if (!breakpad->Initialize(parameters)) {
+      // Don't use operator delete() here since we allocated from special pool
+      breakpad->~Breakpad();
+      return NULL;
+    }
+
+    return breakpad;
+  }
+
+  ~Breakpad();
+
+  void SetKeyValue(NSString *key, NSString *value);
+  NSString *KeyValue(NSString *key);
+  void RemoveKeyValue(NSString *key);
+
+  void GenerateAndSendReport();
+
+  void SetFilterCallback(BreakpadFilterCallback callback, void *context) {
+    filter_callback_ = callback;
+    filter_callback_context_ = context;
+  }
+
+ private:
+  Breakpad()
+    : handler_(NULL),
+      config_params_(NULL),
+      send_and_exit_(true),
+      filter_callback_(NULL),
+      filter_callback_context_(NULL) {
+    inspector_path_[0] = 0;
+  }
+
+  bool Initialize(NSDictionary *parameters);
+
+  bool ExtractParameters(NSDictionary *parameters);
+
+  // Dispatches to HandleException()
+  static bool ExceptionHandlerDirectCallback(void *context,
+                                             int exception_type,
+                                             int exception_code,
+                                             int exception_subcode,
+                                             mach_port_t crashing_thread);
+
+  bool HandleException(int exception_type,
+                       int exception_code,
+                       int exception_subcode,
+                       mach_port_t crashing_thread);
+
+  // Since ExceptionHandler (w/o namespace) is defined as typedef in OSX's
+  // MachineExceptions.h, we have to explicitly name the handler.
+  google_breakpad::ExceptionHandler *handler_; // The actual handler (STRONG)
+
+  char                    inspector_path_[PATH_MAX];  // Path to inspector tool
+
+  SimpleStringDictionary  *config_params_; // Create parameters (STRONG)
+
+  OnDemandServer          inspector_;
+
+  bool                    send_and_exit_;  // Exit after sending, if true
+
+  BreakpadFilterCallback  filter_callback_;
+  void                    *filter_callback_context_;
+};
+
+#pragma mark -
+#pragma mark Helper functions
+
+//=============================================================================
+// Helper functions
+
+//=============================================================================
+static BOOL IsDebuggerActive() {
+  BOOL result = NO;
+  NSUserDefaults *stdDefaults = [NSUserDefaults standardUserDefaults];
+
+  // We check both defaults and the environment variable here
+
+  BOOL ignoreDebugger = [stdDefaults boolForKey:@IGNORE_DEBUGGER];
+
+  if (!ignoreDebugger) {
+    char *ignoreDebuggerStr = getenv(IGNORE_DEBUGGER);
+    ignoreDebugger = (ignoreDebuggerStr ? strtol(ignoreDebuggerStr, NULL, 10) : 0) != 0;
+  }
+
+  if (!ignoreDebugger) {
+    pid_t pid = getpid();
+    int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PID, pid};
+    int mibSize = sizeof(mib) / sizeof(int);
+    size_t actualSize;
+
+    if (sysctl(mib, mibSize, NULL, &actualSize, NULL, 0) == 0) {
+      struct kinfo_proc *info = (struct kinfo_proc *)malloc(actualSize);
+
+      if (info) {
+        // This comes from looking at the Darwin xnu Kernel
+        if (sysctl(mib, mibSize, info, &actualSize, NULL, 0) == 0)
+          result = (info->kp_proc.p_flag & P_TRACED) ? YES : NO;
+
+        free(info);
+      }
+    }
+  }
+
+  return result;
+}
+
+//=============================================================================
+bool Breakpad::ExceptionHandlerDirectCallback(void *context,
+                                                    int exception_type,
+                                                    int exception_code,
+                                                    int exception_subcode,
+                                                    mach_port_t crashing_thread) {
+  Breakpad *breakpad = (Breakpad *)context;
+
+  // If our context is damaged or something, just return false to indicate that
+  // the handler should continue without us.
+  if (!breakpad)
+    return false;
+
+  return breakpad->HandleException( exception_type,
+                                    exception_code,
+                                    exception_subcode,
+                                    crashing_thread);
+}
+
+//=============================================================================
+#pragma mark -
+
+#include <dlfcn.h>
+
+//=============================================================================
+// Returns the pathname to the Resources directory for this version of
+// Breakpad which we are now running.
+//
+// Don't make the function static, since _dyld_lookup_and_bind_fully needs a
+// simple non-static C name
+//
+extern "C" {
+NSString * GetResourcePath();
+NSString * GetResourcePath() {
+  NSString *resourcePath = nil;
+
+  // If there are multiple breakpads installed then calling bundleWithIdentifier
+  // will not work properly, so only use that as a backup plan.
+  // We want to find the bundle containing the code where this function lives
+  // and work from there
+  //
+
+  // Get the pathname to the code which contains this function
+  Dl_info info;
+  if (dladdr((const void*)GetResourcePath, &info) != 0) {
+    NSFileManager *filemgr = [NSFileManager defaultManager];
+    NSString *filePath =
+        [filemgr stringWithFileSystemRepresentation:info.dli_fname
+                                             length:strlen(info.dli_fname)];
+    NSString *bundlePath = [filePath stringByDeletingLastPathComponent];
+    // The "Resources" directory should be in the same directory as the
+    // executable code, since that's how the Breakpad framework is built.
+    resourcePath = [bundlePath stringByAppendingPathComponent:@"Resources/"];
+  } else {
+    DEBUGLOG(stderr, "Could not find GetResourcePath\n");
+    // fallback plan
+    NSBundle *bundle =
+        [NSBundle bundleWithIdentifier:@"com.Google.BreakpadFramework"];
+    resourcePath = [bundle resourcePath];
+  }
+
+  return resourcePath;
+}
+}  // extern "C"
+
+//=============================================================================
+bool Breakpad::Initialize(NSDictionary *parameters) {
+  // Initialize
+  config_params_ = NULL;
+  handler_ = NULL;
+
+  // Check for debugger
+  if (IsDebuggerActive()) {
+    DEBUGLOG(stderr, "Debugger is active:  Not installing handler\n");
+    return true;
+  }
+
+  // Gather any user specified parameters
+  if (!ExtractParameters(parameters)) {
+    return false;
+  }
+
+  // Get path to Inspector executable.
+  NSString *inspectorPathString = KeyValue(@BREAKPAD_INSPECTOR_LOCATION);
+
+  // Standardize path (resolve symlinkes, etc.)  and escape spaces
+  inspectorPathString = [inspectorPathString stringByStandardizingPath];
+  inspectorPathString = [[inspectorPathString componentsSeparatedByString:@" "]
+                                              componentsJoinedByString:@"\\ "];
+
+  // Create an on-demand server object representing the Inspector.
+  // In case of a crash, we simply need to call the LaunchOnDemand()
+  // method on it, then send a mach message to its service port.
+  // It will then launch and perform a process inspection of our crashed state.
+  // See the HandleException() method for the details.
+#define RECEIVE_PORT_NAME "com.Breakpad.Inspector"
+
+  name_t portName;
+  snprintf(portName, sizeof(name_t),  "%s%d", RECEIVE_PORT_NAME, getpid());
+
+  // Save the location of the Inspector
+  strlcpy(inspector_path_, [inspectorPathString fileSystemRepresentation],
+          sizeof(inspector_path_));
+
+  // Append a single command-line argument to the Inspector path
+  // representing the bootstrap name of the launch-on-demand receive port.
+  // When the Inspector is launched, it can use this to lookup the port
+  // by calling bootstrap_check_in().
+  strlcat(inspector_path_, " ", sizeof(inspector_path_));
+  strlcat(inspector_path_, portName, sizeof(inspector_path_));
+
+  kern_return_t kr = inspector_.Initialize(inspector_path_,
+                                           portName,
+                                           true);        // shutdown on exit
+
+  if (kr != KERN_SUCCESS) {
+    return false;
+  }
+
+  // Create the handler (allocating it in our special protected pool)
+  handler_ =
+      new (gBreakpadAllocator->Allocate(
+          sizeof(google_breakpad::ExceptionHandler)))
+          google_breakpad::ExceptionHandler(
+              Breakpad::ExceptionHandlerDirectCallback, this, true);
+  return true;
+}
+
+//=============================================================================
+Breakpad::~Breakpad() {
+  // Note that we don't use operator delete() on these pointers,
+  // since they were allocated by ProtectedMemoryAllocator objects.
+  //
+  if (config_params_) {
+    config_params_->~SimpleStringDictionary();
+  }
+
+  if (handler_)
+    handler_->~ExceptionHandler();
+}
+
+//=============================================================================
+bool Breakpad::ExtractParameters(NSDictionary *parameters) {
+  NSUserDefaults *stdDefaults = [NSUserDefaults standardUserDefaults];
+  NSString *skipConfirm = [stdDefaults stringForKey:@BREAKPAD_SKIP_CONFIRM];
+  NSString *sendAndExit = [stdDefaults stringForKey:@BREAKPAD_SEND_AND_EXIT];
+
+  NSString *serverType = [parameters objectForKey:@BREAKPAD_SERVER_TYPE];
+  NSString *display = [parameters objectForKey:@BREAKPAD_PRODUCT_DISPLAY];
+  NSString *product = [parameters objectForKey:@BREAKPAD_PRODUCT];
+  NSString *version = [parameters objectForKey:@BREAKPAD_VERSION];
+  NSString *urlStr = [parameters objectForKey:@BREAKPAD_URL];
+  NSString *interval = [parameters objectForKey:@BREAKPAD_REPORT_INTERVAL];
+  NSString *inspectorPathString =
+      [parameters objectForKey:@BREAKPAD_INSPECTOR_LOCATION];
+  NSString *reporterPathString =
+      [parameters objectForKey:@BREAKPAD_REPORTER_EXE_LOCATION];
+  NSString *timeout = [parameters objectForKey:@BREAKPAD_CONFIRM_TIMEOUT];
+  NSArray  *logFilePaths = [parameters objectForKey:@BREAKPAD_LOGFILES];
+  NSString *logFileTailSize =
+      [parameters objectForKey:@BREAKPAD_LOGFILE_UPLOAD_SIZE];
+  NSString *requestUserText =
+      [parameters objectForKey:@BREAKPAD_REQUEST_COMMENTS];
+  NSString *requestEmail = [parameters objectForKey:@BREAKPAD_REQUEST_EMAIL];
+  NSString *vendor =
+      [parameters objectForKey:@BREAKPAD_VENDOR];
+  NSString *dumpSubdirectory =
+      [parameters objectForKey:@BREAKPAD_DUMP_DIRECTORY];
+
+  NSDictionary *serverParameters =
+      [parameters objectForKey:@BREAKPAD_SERVER_PARAMETER_DICT];
+
+  // These may have been set above as user prefs, which take priority.
+  if (!skipConfirm) {
+    skipConfirm = [parameters objectForKey:@BREAKPAD_SKIP_CONFIRM];
+  }
+  if (!sendAndExit) {
+    sendAndExit = [parameters objectForKey:@BREAKPAD_SEND_AND_EXIT];
+  }
+
+  if (!product)
+    product = [parameters objectForKey:@"CFBundleName"];
+
+  if (!display) {
+    display = [parameters objectForKey:@"CFBundleDisplayName"];
+    if (!display) {
+      display = product;
+    }
+  }
+
+  if (!version)
+    version = [parameters objectForKey:@"CFBundleVersion"];
+
+  if (!interval)
+    interval = @"3600";
+
+  if (!timeout)
+    timeout = @"300";
+
+  if (!logFileTailSize)
+    logFileTailSize = @"200000";
+
+  if (!vendor) {
+    vendor = @"Vendor not specified";
+  }
+
+  // Normalize the values.
+  if (skipConfirm) {
+    skipConfirm = [skipConfirm uppercaseString];
+
+    if ([skipConfirm isEqualToString:@"YES"] ||
+        [skipConfirm isEqualToString:@"TRUE"] ||
+        [skipConfirm isEqualToString:@"1"])
+      skipConfirm = @"YES";
+    else
+      skipConfirm = @"NO";
+  } else {
+    skipConfirm = @"NO";
+  }
+
+  send_and_exit_ = true;
+  if (sendAndExit) {
+    sendAndExit = [sendAndExit uppercaseString];
+
+    if ([sendAndExit isEqualToString:@"NO"] ||
+        [sendAndExit isEqualToString:@"FALSE"] ||
+        [sendAndExit isEqualToString:@"0"])
+      send_and_exit_ = false;
+  }
+
+  if (requestUserText) {
+    requestUserText = [requestUserText uppercaseString];
+
+    if ([requestUserText isEqualToString:@"YES"] ||
+        [requestUserText isEqualToString:@"TRUE"] ||
+        [requestUserText isEqualToString:@"1"])
+      requestUserText = @"YES";
+    else
+      requestUserText = @"NO";
+  } else {
+    requestUserText = @"NO";
+  }
+
+  // Find the helper applications if not specified in user config.
+  NSString *resourcePath = nil;
+  if (!inspectorPathString || !reporterPathString) {
+    resourcePath = GetResourcePath();
+    if (!resourcePath) {
+      DEBUGLOG(stderr, "Could not get resource path\n");
+      return false;
+    }
+  }
+
+  // Find Inspector.
+  if (!inspectorPathString) {
+    inspectorPathString =
+        [resourcePath stringByAppendingPathComponent:@"Inspector"];
+  }
+
+  // Verify that there is an Inspector tool.
+  if (![[NSFileManager defaultManager] fileExistsAtPath:inspectorPathString]) {
+    DEBUGLOG(stderr, "Cannot find Inspector tool\n");
+    return false;
+  }
+
+  // Find Reporter.
+  if (!reporterPathString) {
+    reporterPathString =
+        [resourcePath
+         stringByAppendingPathComponent:@"crash_report_sender.app"];
+    reporterPathString =
+        [[NSBundle bundleWithPath:reporterPathString] executablePath];
+  }
+
+  // Verify that there is a Reporter application.
+  if (![[NSFileManager defaultManager]
+             fileExistsAtPath:reporterPathString]) {
+    DEBUGLOG(stderr, "Cannot find Reporter tool\n");
+    return false;
+  }
+
+  if (!dumpSubdirectory) {
+    dumpSubdirectory = @"";
+  }
+
+  // The product, version, and URL are required values.
+  if (![product length]) {
+    DEBUGLOG(stderr, "Missing required product key.\n");
+    return false;
+  }
+
+  if (![version length]) {
+    DEBUGLOG(stderr, "Missing required version key.\n");
+    return false;
+  }
+
+  if (![urlStr length]) {
+    DEBUGLOG(stderr, "Missing required URL key.\n");
+    return false;
+  }
+
+  config_params_ =
+      new (gKeyValueAllocator->Allocate(sizeof(SimpleStringDictionary)) )
+        SimpleStringDictionary();
+
+  SimpleStringDictionary &dictionary = *config_params_;
+
+  dictionary.SetKeyValue(BREAKPAD_SERVER_TYPE,     [serverType UTF8String]);
+  dictionary.SetKeyValue(BREAKPAD_PRODUCT_DISPLAY, [display UTF8String]);
+  dictionary.SetKeyValue(BREAKPAD_PRODUCT,         [product UTF8String]);
+  dictionary.SetKeyValue(BREAKPAD_VERSION,         [version UTF8String]);
+  dictionary.SetKeyValue(BREAKPAD_URL,             [urlStr UTF8String]);
+  dictionary.SetKeyValue(BREAKPAD_REPORT_INTERVAL, [interval UTF8String]);
+  dictionary.SetKeyValue(BREAKPAD_SKIP_CONFIRM,    [skipConfirm UTF8String]);
+  dictionary.SetKeyValue(BREAKPAD_CONFIRM_TIMEOUT, [timeout UTF8String]);
+  dictionary.SetKeyValue(BREAKPAD_INSPECTOR_LOCATION,
+                         [inspectorPathString fileSystemRepresentation]);
+  dictionary.SetKeyValue(BREAKPAD_REPORTER_EXE_LOCATION,
+                         [reporterPathString fileSystemRepresentation]);
+  dictionary.SetKeyValue(BREAKPAD_LOGFILE_UPLOAD_SIZE,
+                         [logFileTailSize UTF8String]);
+  dictionary.SetKeyValue(BREAKPAD_REQUEST_COMMENTS,
+                         [requestUserText UTF8String]);
+  dictionary.SetKeyValue(BREAKPAD_REQUEST_EMAIL, [requestEmail UTF8String]);
+  dictionary.SetKeyValue(BREAKPAD_VENDOR, [vendor UTF8String]);
+  dictionary.SetKeyValue(BREAKPAD_DUMP_DIRECTORY,
+                         [dumpSubdirectory UTF8String]);
+
+  struct timeval tv;
+  gettimeofday(&tv, NULL);
+  char timeStartedString[32];
+  sprintf(timeStartedString, "%zd", tv.tv_sec);
+  dictionary.SetKeyValue(BREAKPAD_PROCESS_START_TIME,
+                         timeStartedString);
+
+  if (logFilePaths) {
+    char logFileKey[255];
+    for(unsigned int i = 0; i < [logFilePaths count]; i++) {
+      sprintf(logFileKey,"%s%d", BREAKPAD_LOGFILE_KEY_PREFIX, i);
+      dictionary.SetKeyValue(logFileKey,
+                             [[logFilePaths objectAtIndex:i]
+                               fileSystemRepresentation]);
+    }
+  }
+
+  if (serverParameters) {
+    // For each key-value pair, call BreakpadAddUploadParameter()
+    NSEnumerator *keyEnumerator = [serverParameters keyEnumerator];
+    NSString *aParameter;
+    while ((aParameter = [keyEnumerator nextObject])) {
+      BreakpadAddUploadParameter(this, aParameter,
+				 [serverParameters objectForKey:aParameter]);
+    }
+  }
+  return true;
+}
+
+//=============================================================================
+void Breakpad::SetKeyValue(NSString *key, NSString *value) {
+  // We allow nil values. This is the same as removing the keyvalue.
+  if (!config_params_ || !key)
+    return;
+
+  config_params_->SetKeyValue([key UTF8String], [value UTF8String]);
+}
+
+//=============================================================================
+NSString *Breakpad::KeyValue(NSString *key) {
+  if (!config_params_ || !key)
+    return nil;
+
+  const char *value = config_params_->GetValueForKey([key UTF8String]);
+  return value ? [NSString stringWithUTF8String:value] : nil;
+}
+
+//=============================================================================
+void Breakpad::RemoveKeyValue(NSString *key) {
+  if (!config_params_ || !key) return;
+
+  config_params_->RemoveKey([key UTF8String]);
+}
+
+//=============================================================================
+void Breakpad::GenerateAndSendReport() {
+  config_params_->SetKeyValue(BREAKPAD_ON_DEMAND, "YES");
+  HandleException(0, 0, 0, mach_thread_self());
+  config_params_->SetKeyValue(BREAKPAD_ON_DEMAND, "NO");
+}
+
+//=============================================================================
+bool Breakpad::HandleException(int exception_type,
+                               int exception_code,
+                               int exception_subcode,
+                               mach_port_t crashing_thread) {
+  DEBUGLOG(stderr, "Breakpad: an exception occurred\n");
+
+  if (filter_callback_) {
+    bool should_handle = filter_callback_(exception_type,
+                                          exception_code,
+                                          crashing_thread,
+                                          filter_callback_context_);
+    if (!should_handle) return false;
+  }
+
+  // We need to reset the memory protections to be read/write,
+  // since LaunchOnDemand() requires changing state.
+  gBreakpadAllocator->Unprotect();
+  // Configure the server to launch when we message the service port.
+  // The reason we do this here, rather than at startup, is that we
+  // can leak a bootstrap service entry if this method is called and
+  // there never ends up being a crash.
+  inspector_.LaunchOnDemand();
+  gBreakpadAllocator->Protect();
+
+  // The Inspector should send a message to this port to verify it
+  // received our information and has finished the inspection.
+  ReceivePort acknowledge_port;
+
+  // Send initial information to the Inspector.
+  MachSendMessage message(kMsgType_InspectorInitialInfo);
+  message.AddDescriptor(mach_task_self());          // our task
+  message.AddDescriptor(crashing_thread);           // crashing thread
+  message.AddDescriptor(mach_thread_self());        // exception-handling thread
+  message.AddDescriptor(acknowledge_port.GetPort());// message receive port
+
+  InspectorInfo info;
+  info.exception_type = exception_type;
+  info.exception_code = exception_code;
+  info.exception_subcode = exception_subcode;
+  info.parameter_count = config_params_->GetCount();
+  message.SetData(&info, sizeof(info));
+
+  MachPortSender sender(inspector_.GetServicePort());
+
+  kern_return_t result = sender.SendMessage(message, 2000);
+
+  if (result == KERN_SUCCESS) {
+    // Now, send a series of key-value pairs to the Inspector.
+    const KeyValueEntry *entry = NULL;
+    SimpleStringDictionaryIterator iter(*config_params_);
+
+    while ( (entry = iter.Next()) ) {
+      KeyValueMessageData keyvalue_data(*entry);
+
+      MachSendMessage keyvalue_message(kMsgType_InspectorKeyValuePair);
+      keyvalue_message.SetData(&keyvalue_data, sizeof(keyvalue_data));
+
+      result = sender.SendMessage(keyvalue_message, 2000);
+
+      if (result != KERN_SUCCESS) {
+        break;
+      }
+    }
+
+    if (result == KERN_SUCCESS) {
+      // Wait for acknowledgement that the inspection has finished.
+      MachReceiveMessage acknowledge_messsage;
+      result = acknowledge_port.WaitForMessage(&acknowledge_messsage, 5000);
+    }
+  }
+
+#if VERBOSE
+  PRINT_MACH_RESULT(result, "Breakpad: SendMessage ");
+  printf("Breakpad: Inspector service port = %#x\n",
+    inspector_.GetServicePort());
+#endif
+
+  // If we don't want any forwarding, return true here to indicate that we've
+  // processed things as much as we want.
+  if (send_and_exit_) return true;
+
+  return false;
+}
+
+//=============================================================================
+//=============================================================================
+
+#pragma mark -
+#pragma mark Public API
+
+//=============================================================================
+BreakpadRef BreakpadCreate(NSDictionary *parameters) {
+  try {
+    // This is confusing.  Our two main allocators for breakpad memory are:
+    //    - gKeyValueAllocator for the key/value memory
+    //    - gBreakpadAllocator for the Breakpad, ExceptionHandler, and other
+    //      breakpad allocations which are accessed at exception handling time.
+    //
+    // But in order to avoid these two allocators themselves from being smashed,
+    // we'll protect them as well by allocating them with gMasterAllocator.
+    //
+    // gMasterAllocator itself will NOT be protected, but this doesn't matter,
+    // since once it does its allocations and locks the memory, smashes to itself
+    // don't affect anything we care about.
+    gMasterAllocator =
+        new ProtectedMemoryAllocator(sizeof(ProtectedMemoryAllocator) * 2);
+
+    gKeyValueAllocator =
+        new (gMasterAllocator->Allocate(sizeof(ProtectedMemoryAllocator)))
+            ProtectedMemoryAllocator(sizeof(SimpleStringDictionary));
+
+    // Create a mutex for use in accessing the SimpleStringDictionary
+    int mutexResult = pthread_mutex_init(&gDictionaryMutex, NULL);
+    if (mutexResult == 0) {
+
+      // With the current compiler, gBreakpadAllocator is allocating 1444 bytes.
+      // Let's round up to the nearest page size.
+      //
+      int breakpad_pool_size = 4096;
+
+      /*
+       sizeof(Breakpad)
+       + sizeof(google_breakpad::ExceptionHandler)
+       + sizeof( STUFF ALLOCATED INSIDE ExceptionHandler )
+       */
+
+      gBreakpadAllocator =
+          new (gMasterAllocator->Allocate(sizeof(ProtectedMemoryAllocator)))
+              ProtectedMemoryAllocator(breakpad_pool_size);
+
+      // Stack-based autorelease pool for Breakpad::Create() obj-c code.
+      NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
+      Breakpad *breakpad = Breakpad::Create(parameters);
+
+      if (breakpad) {
+        // Make read-only to protect against memory smashers
+        gMasterAllocator->Protect();
+        gKeyValueAllocator->Protect();
+        gBreakpadAllocator->Protect();
+        // Can uncomment this line to figure out how much space was actually
+        // allocated using this allocator
+        //     printf("gBreakpadAllocator allocated size = %d\n",
+        //         gBreakpadAllocator->GetAllocatedSize() );
+        [pool release];
+        return (BreakpadRef)breakpad;
+      }
+
+      [pool release];
+    }
+  } catch(...) {    // don't let exceptions leave this C API
+    fprintf(stderr, "BreakpadCreate() : error\n");
+  }
+
+  if (gKeyValueAllocator) {
+    gKeyValueAllocator->~ProtectedMemoryAllocator();
+    gKeyValueAllocator = NULL;
+  }
+
+  if (gBreakpadAllocator) {
+    gBreakpadAllocator->~ProtectedMemoryAllocator();
+    gBreakpadAllocator = NULL;
+  }
+
+  delete gMasterAllocator;
+  gMasterAllocator = NULL;
+
+  return NULL;
+}
+
+//=============================================================================
+void BreakpadRelease(BreakpadRef ref) {
+  try {
+    Breakpad *breakpad = (Breakpad *)ref;
+
+    if (gMasterAllocator) {
+      gMasterAllocator->Unprotect();
+      gKeyValueAllocator->Unprotect();
+      gBreakpadAllocator->Unprotect();
+
+      breakpad->~Breakpad();
+
+      // Unfortunately, it's not possible to deallocate this stuff
+      // because the exception handling thread is still finishing up
+      // asynchronously at this point...  OK, it could be done with
+      // locks, etc.  But since BreakpadRelease() should usually only
+      // be called right before the process exits, it's not worth
+      // deallocating this stuff.
+#if 0
+      gKeyValueAllocator->~ProtectedMemoryAllocator();
+      gBreakpadAllocator->~ProtectedMemoryAllocator();
+      delete gMasterAllocator;
+
+      gMasterAllocator = NULL;
+      gKeyValueAllocator = NULL;
+      gBreakpadAllocator = NULL;
+#endif
+
+      pthread_mutex_destroy(&gDictionaryMutex);
+    }
+  } catch(...) {    // don't let exceptions leave this C API
+    fprintf(stderr, "BreakpadRelease() : error\n");
+  }
+}
+
+//=============================================================================
+void BreakpadSetKeyValue(BreakpadRef ref, NSString *key, NSString *value) {
+  try {
+    // Not called at exception time
+    Breakpad *breakpad = (Breakpad *)ref;
+
+    if (breakpad && key && gKeyValueAllocator) {
+      ProtectedMemoryLocker locker(&gDictionaryMutex, gKeyValueAllocator);
+
+      breakpad->SetKeyValue(key, value);
+    }
+  } catch(...) {    // don't let exceptions leave this C API
+    fprintf(stderr, "BreakpadSetKeyValue() : error\n");
+  }
+}
+
+void BreakpadAddUploadParameter(BreakpadRef ref,
+                                NSString *key,
+                                NSString *value) {
+  // The only difference, internally, between an upload parameter and
+  // a key value one that is set with BreakpadSetKeyValue is that we
+  // prepend the keyname with a special prefix.  This informs the
+  // crash sender that the parameter should be sent along with the
+  // POST of the crash dump upload.
+  try {
+    Breakpad *breakpad = (Breakpad *)ref;
+
+    if (breakpad && key && gKeyValueAllocator) {
+      ProtectedMemoryLocker locker(&gDictionaryMutex, gKeyValueAllocator);
+
+      NSString *prefixedKey = [@BREAKPAD_SERVER_PARAMETER_PREFIX
+				stringByAppendingString:key];
+      breakpad->SetKeyValue(prefixedKey, value);
+    }
+  } catch(...) {    // don't let exceptions leave this C API
+    fprintf(stderr, "BreakpadSetKeyValue() : error\n");
+  }
+}
+
+void BreakpadRemoveUploadParameter(BreakpadRef ref,
+                                   NSString *key) {
+  try {
+    // Not called at exception time
+    Breakpad *breakpad = (Breakpad *)ref;
+
+    if (breakpad && key && gKeyValueAllocator) {
+      ProtectedMemoryLocker locker(&gDictionaryMutex, gKeyValueAllocator);
+
+      NSString *prefixedKey = [NSString stringWithFormat:@"%@%@",
+                                        @BREAKPAD_SERVER_PARAMETER_PREFIX, key];
+      breakpad->RemoveKeyValue(prefixedKey);
+    }
+  } catch(...) {    // don't let exceptions leave this C API
+    fprintf(stderr, "BreakpadRemoveKeyValue() : error\n");
+  }
+}
+//=============================================================================
+NSString *BreakpadKeyValue(BreakpadRef ref, NSString *key) {
+  NSString *value = nil;
+
+  try {
+    // Not called at exception time
+    Breakpad *breakpad = (Breakpad *)ref;
+
+    if (!breakpad || !key || !gKeyValueAllocator)
+      return nil;
+
+    ProtectedMemoryLocker locker(&gDictionaryMutex, gKeyValueAllocator);
+
+    value = breakpad->KeyValue(key);
+  } catch(...) {    // don't let exceptions leave this C API
+    fprintf(stderr, "BreakpadKeyValue() : error\n");
+  }
+
+  return value;
+}
+
+//=============================================================================
+void BreakpadRemoveKeyValue(BreakpadRef ref, NSString *key) {
+  try {
+    // Not called at exception time
+    Breakpad *breakpad = (Breakpad *)ref;
+
+    if (breakpad && key && gKeyValueAllocator) {
+      ProtectedMemoryLocker locker(&gDictionaryMutex, gKeyValueAllocator);
+
+      breakpad->RemoveKeyValue(key);
+    }
+  } catch(...) {    // don't let exceptions leave this C API
+    fprintf(stderr, "BreakpadRemoveKeyValue() : error\n");
+  }
+}
+
+//=============================================================================
+void BreakpadGenerateAndSendReport(BreakpadRef ref) {
+  try {
+    Breakpad *breakpad = (Breakpad *)ref;
+
+    if (breakpad && gKeyValueAllocator) {
+      ProtectedMemoryLocker locker(&gDictionaryMutex, gKeyValueAllocator);
+
+      gBreakpadAllocator->Unprotect();
+      breakpad->GenerateAndSendReport();
+      gBreakpadAllocator->Protect();
+    }
+  } catch(...) {    // don't let exceptions leave this C API
+    fprintf(stderr, "BreakpadGenerateAndSendReport() : error\n");
+  }
+}
+
+//=============================================================================
+void BreakpadSetFilterCallback(BreakpadRef ref,
+                               BreakpadFilterCallback callback,
+                               void *context) {
+
+  try {
+    Breakpad *breakpad = (Breakpad *)ref;
+
+    if (breakpad && gBreakpadAllocator) {
+      // share the dictionary mutex here (we really don't need a mutex)
+      ProtectedMemoryLocker locker(&gDictionaryMutex, gBreakpadAllocator);
+
+      breakpad->SetFilterCallback(callback, context);
+    }
+  } catch(...) {    // don't let exceptions leave this C API
+    fprintf(stderr, "BreakpadSetFilterCallback() : error\n");
+  }
+}
+
+//============================================================================
+void BreakpadAddLogFile(BreakpadRef ref, NSString *logPathname) {
+  int logFileCounter = 0;
+
+  NSString *logFileKey = [NSString stringWithFormat:@"%@%d",
+                                   @BREAKPAD_LOGFILE_KEY_PREFIX,
+                                   logFileCounter];
+
+  NSString *existingLogFilename = nil;
+  existingLogFilename = BreakpadKeyValue(ref, logFileKey);
+  // Find the first log file key that we can use by testing for existence
+  while (existingLogFilename) {
+    if ([existingLogFilename isEqualToString:logPathname]) {
+      return;
+    }
+    logFileCounter++;
+    logFileKey = [NSString stringWithFormat:@"%@%d",
+                           @BREAKPAD_LOGFILE_KEY_PREFIX,
+                           logFileCounter];
+    existingLogFilename = BreakpadKeyValue(ref, logFileKey);
+  }
+
+  BreakpadSetKeyValue(ref, logFileKey, logPathname);
+}

thirdparty/breakpad/client/mac/Framework/Breakpad_Prefix.pch

@@ -0,0 +1,8 @@
+//
+// Prefix header for all source files of the 'Breakpad' target in the
+// 'Breakpad' project.
+//
+
+#ifdef __OBJC__
+    #import <Cocoa/Cocoa.h>
+#endif

thirdparty/breakpad/client/mac/Framework/Info.plist

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>English</string>
+	<key>CFBundleExecutable</key>
+	<string>${EXECUTABLE_NAME}</string>
+	<key>CFBundleName</key>
+	<string>${PRODUCT_NAME}</string>
+	<key>CFBundleIconFile</key>
+	<string></string>
+	<key>CFBundleIdentifier</key>
+	<string>com.googlecode.google-breakpad</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundlePackageType</key>
+	<string>FMWK</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>1.0</string>
+	<key>NSPrincipalClass</key>
+	<string></string>
+</dict>
+</plist>

thirdparty/breakpad/client/mac/Framework/OnDemandServer.h

@@ -0,0 +1,146 @@
+// Copyright (c) 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#import <iostream>
+#import <mach/mach.h>
+#import <servers/bootstrap.h>
+#import <stdio.h>
+#import <stdlib.h>
+#import <sys/stat.h>
+#import <unistd.h>
+
+//==============================================================================
+// class OnDemandServer :
+//    A basic on-demand server launcher supporting a single named service port
+//
+// Example Usage :
+//
+//  kern_return_t result;
+//  OnDemandServer *server = OnDemandServer::Create("/tmp/myserver",
+//                                                  "com.MyCompany.MyServiceName",
+//                                                  true,
+//                                                  &result);
+//
+//  if (server) {
+//    server->LaunchOnDemand();
+//    mach_port_t service_port = GetServicePort();
+//
+//    // Send a mach message to service_port and "myserver" will be launched
+//  }
+//
+//
+//                  ---- Now in the server code ----
+//
+//  // "myserver" should get the service port and read the message which
+//  // launched it:
+//  mach_port_t service_rcv_port_;
+//  kern_return_t kr = bootstrap_check_in(bootstrap_port,
+//                                      "com.MyCompany.MyServiceName",
+//                                      &service_rcv_port_);
+//  // mach_msg() read service_rcv_port_ ....
+//
+//  ....
+//
+//  // Later "myserver" may want to unregister the service if it doesn't
+//  // want its bootstrap service to stick around after it exits.
+//
+//  // DO NOT use mach_port_deallocate() here -- it will fail and the
+//  // following bootstrap_register() will also fail leaving our service
+//  // name hanging around forever (until reboot)
+//  kern_return_t kr = mach_port_destroy(mach_task_self(), service_rcv_port_);
+//
+//  kr = bootstrap_register(bootstrap_port,
+//                          "com.MyCompany.MyServiceName",
+//                          MACH_PORT_NULL);
+
+class OnDemandServer {
+ public:
+  // must call Initialize() to be useful
+  OnDemandServer()
+    : server_port_(MACH_PORT_NULL),
+      service_port_(MACH_PORT_NULL),
+      unregister_on_cleanup_(true) {
+  }
+
+  // Creates the bootstrap server and service
+  kern_return_t Initialize(const char *server_command,
+                           const char *service_name,
+                           bool unregister_on_cleanup);
+
+  // Returns an OnDemandServer object if successful, or NULL if there's
+  // an error.  The error result will be returned in out_result.
+  //
+  //    server_command : the full path name including optional command-line
+  //      arguments to the executable representing the server
+  //
+  //    service_name : represents service name
+  //      something like "com.company.ServiceName"
+  //
+  //    unregister_on_cleanup : if true, unregisters the service name
+  //      when the OnDemandServer is deleted -- unregistering will
+  //      ONLY be possible if LaunchOnDemand() has NOT been called.
+  //      If false, then the service will continue to be registered
+  //      even after the current process quits.
+  //
+  //    out_result : if non-NULL, returns the result
+  //      this value will be KERN_SUCCESS if Create() returns non-NULL
+  //
+  static OnDemandServer *Create(const char *server_command,
+                                const char *service_name,
+                                bool unregister_on_cleanup,
+                                kern_return_t *out_result);
+
+  // Cleans up and if LaunchOnDemand() has not yet been called then
+  // the bootstrap service will be unregistered.
+  ~OnDemandServer();
+
+  // This must be called if we intend to commit to launching the server
+  // by sending a mach message to our service port.  Do not call it otherwise
+  // or it will be difficult (impossible?) to unregister the service name.
+  void LaunchOnDemand();
+
+  // This is the port we need to send a mach message to after calling
+  // LaunchOnDemand().  Sending a message causing an immediate launch
+  // of the server
+  mach_port_t GetServicePort() { return service_port_; };
+
+ private:
+  // Disallow copy constructor
+  OnDemandServer(const OnDemandServer&);
+
+  // Cleans up and if LaunchOnDemand() has not yet been called then
+  // the bootstrap service will be unregistered.
+  void Unregister();
+
+  name_t      service_name_;
+
+  mach_port_t server_port_;
+  mach_port_t service_port_;
+  bool        unregister_on_cleanup_;
+};

thirdparty/breakpad/client/mac/Framework/OnDemandServer.mm

@@ -0,0 +1,145 @@
+// Copyright (c) 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#import "OnDemandServer.h"
+
+#if DEBUG
+  #define PRINT_MACH_RESULT(result_, message_) \
+    printf(message_"%s (%d)\n", mach_error_string(result_), result_ );
+#else
+  #define PRINT_MACH_RESULT(result_, message_)
+#endif
+
+//==============================================================================
+OnDemandServer *OnDemandServer::Create(const char *server_command,
+                                       const char *service_name,
+                                       bool unregister_on_cleanup,
+                                       kern_return_t *out_result) {
+  OnDemandServer *server = new OnDemandServer();
+
+  if (!server) return NULL;
+
+  kern_return_t result = server->Initialize(server_command,
+                                            service_name,
+                                            unregister_on_cleanup);
+
+  if (out_result) {
+    *out_result = result;
+  }
+
+  if (result == KERN_SUCCESS) {
+    return server;
+  }
+
+  delete server;
+  return NULL;
+};
+
+//==============================================================================
+kern_return_t OnDemandServer::Initialize(const char *server_command,
+                                         const char *service_name,
+                                         bool unregister_on_cleanup) {
+  unregister_on_cleanup_ = unregister_on_cleanup;
+
+  kern_return_t kr =
+    bootstrap_create_server(bootstrap_port,
+                            const_cast<char*>(server_command),
+                            geteuid(),       // server uid
+                            true,
+                            &server_port_);
+
+  if (kr != KERN_SUCCESS) {
+    PRINT_MACH_RESULT(kr, "bootstrap_create_server() : ");
+    return kr;
+  }
+
+  strlcpy(service_name_, service_name, sizeof(service_name_));
+
+  // Create a service called service_name, and return send rights to
+  // that port in service_port_.
+  kr = bootstrap_create_service(server_port_,
+                                const_cast<char*>(service_name),
+                                &service_port_);
+
+  if (kr != KERN_SUCCESS) {
+    PRINT_MACH_RESULT(kr, "bootstrap_create_service() : ");
+
+    // perhaps the service has already been created - try to look it up
+    kr = bootstrap_look_up(bootstrap_port, (char*)service_name, &service_port_);
+
+    if (kr != KERN_SUCCESS) {
+      PRINT_MACH_RESULT(kr, "bootstrap_look_up() : ");
+      Unregister();  // clean up server port
+      return kr;
+    }
+  }
+
+  return KERN_SUCCESS;
+}
+
+//==============================================================================
+OnDemandServer::~OnDemandServer() {
+  if (unregister_on_cleanup_) {
+    Unregister();
+  }
+}
+
+//==============================================================================
+void OnDemandServer::LaunchOnDemand() {
+  // We need to do this, since the launched server is another process
+  // and holding on to this port delays launching until the current process
+  // exits!
+  mach_port_deallocate(mach_task_self(), server_port_);
+  server_port_ = MACH_PORT_DEAD;
+
+  // Now, the service is still registered and all we need to do is send
+  // a mach message to the service port in order to launch the server.
+}
+
+//==============================================================================
+void OnDemandServer::Unregister() {
+  if (service_port_ != MACH_PORT_NULL) {
+    mach_port_deallocate(mach_task_self(), service_port_);
+    service_port_ = MACH_PORT_NULL;
+  }
+
+  if (server_port_ != MACH_PORT_NULL) {
+    // unregister the service
+    kern_return_t kr = bootstrap_register(server_port_,
+                                          service_name_,
+                                          MACH_PORT_NULL);
+
+    if (kr != KERN_SUCCESS) {
+      PRINT_MACH_RESULT(kr, "Breakpad UNREGISTER : bootstrap_register() : ");
+    }
+
+    mach_port_deallocate(mach_task_self(), server_port_);
+    server_port_ = MACH_PORT_NULL;
+  }
+}

thirdparty/breakpad/client/mac/UnitTests-Info.plist

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>English</string>
+	<key>CFBundleExecutable</key>
+	<string>${EXECUTABLE_NAME}</string>
+	<key>CFBundleIdentifier</key>
+	<string>com.yourcompany.${PRODUCT_NAME:identifier}</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundlePackageType</key>
+	<string>BNDL</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>1.0</string>
+</dict>
+</plist>

thirdparty/breakpad/client/mac/crash_generation/Inspector.h

@@ -0,0 +1,193 @@
+// Copyright (c) 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Interface file between the Breakpad.framework and
+// the Inspector process.
+
+#import "common/mac/SimpleStringDictionary.h"
+
+#import <Foundation/Foundation.h>
+#import "client/mac/handler/minidump_generator.h"
+
+#define VERBOSE 0
+
+extern bool gDebugLog;
+
+#define DEBUGLOG if (gDebugLog) fprintf
+
+// Types of mach messsages (message IDs)
+enum {
+  kMsgType_InspectorInitialInfo = 0,    // data is InspectorInfo
+  kMsgType_InspectorKeyValuePair = 1,   // data is KeyValueMessageData
+  kMsgType_InspectorAcknowledgement = 2 // no data sent
+};
+
+// Initial information sent from the crashed process by
+// Breakpad.framework to the Inspector process
+// The mach message with this struct as data will also include
+// several descriptors for sending mach port rights to the crashed
+// task, etc.
+struct InspectorInfo {
+  int           exception_type;
+  int           exception_code;
+  int           exception_subcode;
+  unsigned int  parameter_count;  // key-value pairs
+};
+
+// Key/value message data to be sent to the Inspector
+struct KeyValueMessageData {
+ public:
+  KeyValueMessageData() {}
+  KeyValueMessageData(const google_breakpad::KeyValueEntry &inEntry) {
+    strlcpy(key, inEntry.GetKey(), sizeof(key) );
+    strlcpy(value, inEntry.GetValue(), sizeof(value) );
+  }
+
+  char key[google_breakpad::KeyValueEntry::MAX_STRING_STORAGE_SIZE];
+  char value[google_breakpad::KeyValueEntry::MAX_STRING_STORAGE_SIZE];
+};
+
+using std::string;
+using google_breakpad::MinidumpGenerator;
+
+namespace google_breakpad {
+
+BOOL EnsureDirectoryPathExists(NSString *dirPath);
+
+//=============================================================================
+class ConfigFile {
+ public:
+  ConfigFile() {
+    config_file_ = -1;
+    config_file_path_[0] = 0;
+    has_created_file_ = false;
+  };
+
+  ~ConfigFile() {
+  };
+
+  void WriteFile(const SimpleStringDictionary *configurationParameters,
+                 const char *dump_dir,
+                 const char *minidump_id);
+
+  const char *GetFilePath() { return config_file_path_; }
+
+  void Unlink() {
+    if (config_file_ != -1)
+      unlink(config_file_path_);
+
+    config_file_ = -1;
+  }
+
+ private:
+  BOOL WriteData(const void *data, size_t length);
+
+  BOOL AppendConfigData(const char *key,
+                        const void *data,
+                        size_t length);
+
+  BOOL AppendConfigString(const char *key,
+                          const char *value);
+
+  int   config_file_;                    // descriptor for config file
+  char  config_file_path_[PATH_MAX];     // Path to configuration file
+  bool  has_created_file_;
+};
+
+//=============================================================================
+class MinidumpLocation {
+ public:
+  MinidumpLocation(NSString *minidumpDir) {
+    // Ensure that the path exists.  Fallback to /tmp if unable to locate path.
+    assert(minidumpDir);
+    if (!EnsureDirectoryPathExists(minidumpDir)) {
+      DEBUGLOG(stderr, "Unable to create: %s\n", [minidumpDir UTF8String]);
+      minidumpDir = @"/tmp";
+    }
+
+    strlcpy(minidump_dir_path_, [minidumpDir fileSystemRepresentation],
+            sizeof(minidump_dir_path_));
+
+    // now generate a unique ID
+    string dump_path(minidump_dir_path_);
+    string next_minidump_id;
+
+    string next_minidump_path_ =
+      (MinidumpGenerator::UniqueNameInDirectory(dump_path, &next_minidump_id));
+
+    strlcpy(minidump_id_, next_minidump_id.c_str(), sizeof(minidump_id_));
+  };
+
+  const char *GetPath() { return minidump_dir_path_; }
+  const char *GetID() { return minidump_id_; }
+
+ private:
+  char minidump_dir_path_[PATH_MAX];             // Path to minidump directory
+  char minidump_id_[128];
+};
+
+//=============================================================================
+class Inspector {
+ public:
+  Inspector() {};
+
+  // given a bootstrap service name, receives mach messages
+  // from a crashed process, then inspects it, creates a minidump file
+  // and asks the user if he wants to upload it to a server.
+  void            Inspect(const char *receive_port_name);
+
+ private:
+  kern_return_t   ServiceCheckIn(const char *receive_port_name);
+  kern_return_t   ServiceCheckOut(const char *receive_port_name);
+
+  kern_return_t   ReadMessages();
+
+  bool            InspectTask();
+  kern_return_t   SendAcknowledgement();
+  void            LaunchReporter(const char *inConfigFilePath);
+
+  void            SetCrashTimeParameters();
+
+  mach_port_t     service_rcv_port_;
+
+  int             exception_type_;
+  int             exception_code_;
+  int             exception_subcode_;
+  mach_port_t     remote_task_;
+  mach_port_t     crashing_thread_;
+  mach_port_t     handler_thread_;
+  mach_port_t     ack_port_;
+
+  SimpleStringDictionary config_params_;
+
+  ConfigFile      config_file_;
+};
+
+
+} // namespace google_breakpad

thirdparty/breakpad/client/mac/crash_generation/Inspector.mm

@@ -0,0 +1,555 @@
+// Copyright (c) 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Utility that can inspect another process and write a crash dump
+
+#include <cstdio>
+#include <iostream>
+#include <stdio.h>
+#include <string.h>
+#include <string>
+#include <sys/time.h>
+
+#import "client/mac/crash_generation/Inspector.h"
+
+#import "client/mac/Framework/Breakpad.h"
+#import "client/mac/handler/minidump_generator.h"
+
+#import "common/mac/SimpleStringDictionary.h"
+#import "common/mac/MachIPC.h"
+
+#import "GTMDefines.h"
+
+#import <Foundation/Foundation.h>
+
+#if VERBOSE
+  bool gDebugLog = true;
+#else
+  bool gDebugLog = false;
+#endif
+
+namespace google_breakpad {
+
+//=============================================================================
+BOOL EnsureDirectoryPathExists(NSString *dirPath) {
+  NSFileManager *mgr = [NSFileManager defaultManager];
+
+  // If we got a relative path, prepend the current directory
+  if (![dirPath isAbsolutePath])
+    dirPath = [[mgr currentDirectoryPath] stringByAppendingPathComponent:dirPath];
+
+  NSString *path = dirPath;
+
+  // Ensure that no file exists within the path which would block creation
+  while (1) {
+    BOOL isDir;
+    if ([mgr fileExistsAtPath:path isDirectory:&isDir]) {
+      if (isDir)
+        break;
+
+      return NO;
+    }
+
+    path = [path stringByDeletingLastPathComponent];
+  }
+
+  // Path now contains the first valid directory (or is empty)
+  if (![path length])
+    return NO;
+
+  NSString *common =
+    [dirPath commonPrefixWithString:path options:NSLiteralSearch];
+
+  // If everything is good
+  if ([common isEqualToString:dirPath])
+    return YES;
+
+  // Break up the difference into components
+  NSString *diff = [dirPath substringFromIndex:[common length] + 1];
+  NSArray *components = [diff pathComponents];
+  NSUInteger count = [components count];
+
+  // Rebuild the path one component at a time
+  NSDictionary *attrs =
+    [NSDictionary dictionaryWithObject:[NSNumber numberWithUnsignedLong:0750]
+                                forKey:NSFilePosixPermissions];
+  path = common;
+  for (NSUInteger i = 0; i < count; ++i) {
+    path = [path stringByAppendingPathComponent:[components objectAtIndex:i]];
+
+    if (![mgr createDirectoryAtPath:path attributes:attrs])
+      return NO;
+  }
+
+  return YES;
+}
+
+//=============================================================================
+BOOL ConfigFile::WriteData(const void *data, size_t length) {
+  size_t result = write(config_file_, data, length);
+
+  return result == length;
+}
+
+//=============================================================================
+BOOL ConfigFile::AppendConfigData(const char *key,
+                                  const void *data, size_t length) {
+  assert(config_file_ != -1);
+
+  if (!key) {
+    DEBUGLOG(stderr, "Breakpad: Missing Key\n");
+    return NO;
+  }
+
+  if (!data) {
+    DEBUGLOG(stderr, "Breakpad: Missing data for key: %s\n", key ? key :
+            "<Unknown Key>");
+    return NO;
+  }
+
+  // Write the key, \n, length of data (ascii integer), \n, data
+  char buffer[16];
+  char nl = '\n';
+  BOOL result = WriteData(key, strlen(key));
+
+  snprintf(buffer, sizeof(buffer) - 1, "\n%lu\n", length);
+  result &= WriteData(buffer, strlen(buffer));
+  result &= WriteData(data, length);
+  result &= WriteData(&nl, 1);
+  return result;
+}
+
+//=============================================================================
+BOOL ConfigFile::AppendConfigString(const char *key,
+                                    const char *value) {
+  return AppendConfigData(key, value, strlen(value));
+}
+
+//=============================================================================
+void ConfigFile::WriteFile(const SimpleStringDictionary *configurationParameters,
+                           const char *dump_dir,
+                           const char *minidump_id) {
+
+  assert(config_file_ == -1);
+
+  // Open and write out configuration file preamble
+  strlcpy(config_file_path_, "/tmp/Config-XXXXXX",
+          sizeof(config_file_path_));
+  config_file_ = mkstemp(config_file_path_);
+
+  if (config_file_ == -1) {
+    DEBUGLOG(stderr,
+             "mkstemp(config_file_path_) == -1 (%s)\n",
+             strerror(errno));
+    return;
+  }
+  else {
+    DEBUGLOG(stderr, "Writing config file to (%s)\n", config_file_path_);
+  }
+
+  has_created_file_ = true;
+
+  // Add the minidump dir
+  AppendConfigString(kReporterMinidumpDirectoryKey, dump_dir);
+  AppendConfigString(kReporterMinidumpIDKey, minidump_id);
+
+  // Write out the configuration parameters
+  BOOL result = YES;
+  const SimpleStringDictionary &dictionary = *configurationParameters;
+
+  const KeyValueEntry *entry = NULL;
+  SimpleStringDictionaryIterator iter(dictionary);
+
+  while ((entry = iter.Next())) {
+    DEBUGLOG(stderr,
+             "config: (%s) -> (%s)\n",
+             entry->GetKey(),
+             entry->GetValue());
+    result = AppendConfigString(entry->GetKey(), entry->GetValue());
+
+    if (!result)
+      break;
+  }
+
+  close(config_file_);
+  config_file_ = -1;
+}
+
+//=============================================================================
+void Inspector::Inspect(const char *receive_port_name) {
+  kern_return_t result = ServiceCheckIn(receive_port_name);
+
+  if (result == KERN_SUCCESS) {
+    result = ReadMessages();
+
+    if (result == KERN_SUCCESS) {
+      // Inspect the task and write a minidump file.
+      bool wrote_minidump = InspectTask();
+
+      // Send acknowledgement to the crashed process that the inspection
+      // has finished.  It will then be able to cleanly exit.
+      // The return value is ignored because failure isn't fatal. If the process
+      // didn't get the message there's nothing we can do, and we still want to
+      // send the report.
+      SendAcknowledgement();
+
+      if (wrote_minidump) {
+        // Ask the user if he wants to upload the crash report to a server,
+        // and do so if he agrees.
+        LaunchReporter(config_file_.GetFilePath());
+      } else {
+        fprintf(stderr, "Inspection of crashed process failed\n");
+      }
+
+      // Now that we're done reading messages, cleanup the service, but only
+      // if there was an actual exception
+      // Otherwise, it means the dump was generated on demand and the process
+      // lives on, and we might be needed again in the future.
+      if (exception_code_) {
+        ServiceCheckOut(receive_port_name);
+      }
+    } else {
+        PRINT_MACH_RESULT(result, "Inspector: WaitForMessage()");
+    }
+  }
+}
+
+//=============================================================================
+kern_return_t Inspector::ServiceCheckIn(const char *receive_port_name) {
+  // We need to get the mach port representing this service, so we can
+  // get information from the crashed process.
+  kern_return_t kr = bootstrap_check_in(bootstrap_port,
+                                        (char*)receive_port_name,
+                                        &service_rcv_port_);
+
+  if (kr != KERN_SUCCESS) {
+#if VERBOSE
+    PRINT_MACH_RESULT(kr, "Inspector: bootstrap_check_in()");
+#endif
+  }
+
+  return kr;
+}
+
+//=============================================================================
+kern_return_t Inspector::ServiceCheckOut(const char *receive_port_name) {
+  // We're done receiving mach messages from the crashed process,
+  // so clean up a bit.
+  kern_return_t kr;
+
+  // DO NOT use mach_port_deallocate() here -- it will fail and the
+  // following bootstrap_register() will also fail leaving our service
+  // name hanging around forever (until reboot)
+  kr = mach_port_destroy(mach_task_self(), service_rcv_port_);
+
+  if (kr != KERN_SUCCESS) {
+    PRINT_MACH_RESULT(kr,
+      "Inspector: UNREGISTERING: service_rcv_port mach_port_deallocate()");
+    return kr;
+  }
+
+  // Unregister the service associated with the receive port.
+  kr = bootstrap_register(bootstrap_port,
+                          (char*)receive_port_name,
+                          MACH_PORT_NULL);
+
+  if (kr != KERN_SUCCESS) {
+    PRINT_MACH_RESULT(kr, "Inspector: UNREGISTERING: bootstrap_register()");
+  }
+
+  return kr;
+}
+
+//=============================================================================
+kern_return_t Inspector::ReadMessages() {
+  // Wait for an initial message from the crashed process containing basic
+  // information about the crash.
+  ReceivePort receive_port(service_rcv_port_);
+
+  MachReceiveMessage message;
+  kern_return_t result = receive_port.WaitForMessage(&message, 1000);
+
+  if (result == KERN_SUCCESS) {
+    InspectorInfo &info = (InspectorInfo &)*message.GetData();
+    exception_type_ = info.exception_type;
+    exception_code_ = info.exception_code;
+    exception_subcode_ = info.exception_subcode;
+
+#if VERBOSE
+    printf("message ID = %d\n", message.GetMessageID());
+#endif
+
+    remote_task_ = message.GetTranslatedPort(0);
+    crashing_thread_ = message.GetTranslatedPort(1);
+    handler_thread_ = message.GetTranslatedPort(2);
+    ack_port_ = message.GetTranslatedPort(3);
+
+#if VERBOSE
+    printf("exception_type = %d\n", exception_type_);
+    printf("exception_code = %d\n", exception_code_);
+    printf("exception_subcode = %d\n", exception_subcode_);
+    printf("remote_task = %d\n", remote_task_);
+    printf("crashing_thread = %d\n", crashing_thread_);
+    printf("handler_thread = %d\n", handler_thread_);
+    printf("ack_port_ = %d\n", ack_port_);
+    printf("parameter count = %d\n", info.parameter_count);
+#endif
+
+    // In certain situations where multiple crash requests come
+    // through quickly, we can end up with the mach IPC messages not
+    // coming through correctly.  Since we don't know what parameters
+    // we've missed, we can't do much besides abort the crash dump
+    // situation in this case.
+    unsigned int parameters_read = 0;
+    // The initial message contains the number of key value pairs that
+    // we are expected to read.
+    // Read each key/value pair, one mach message per key/value pair.
+    for (unsigned int i = 0; i < info.parameter_count; ++i) {
+      MachReceiveMessage parameter_message;
+      result = receive_port.WaitForMessage(&parameter_message, 1000);
+
+      if(result == KERN_SUCCESS) {
+        KeyValueMessageData &key_value_data =
+          (KeyValueMessageData&)*parameter_message.GetData();
+        // If we get a blank key, make sure we don't increment the
+        // parameter count; in some cases (notably on-demand generation
+        // many times in a short period of time) caused the Mach IPC
+        // messages to not come through correctly.
+        if (strlen(key_value_data.key) == 0) {
+          continue;
+        }
+        parameters_read++;
+
+        config_params_.SetKeyValue(key_value_data.key, key_value_data.value);
+      } else {
+        PRINT_MACH_RESULT(result, "Inspector: key/value message");
+        break;
+      }
+    }
+    if (parameters_read != info.parameter_count) {
+      DEBUGLOG(stderr, "Only read %d parameters instead of %d, aborting crash "
+               "dump generation.", parameters_read, info.parameter_count);
+      return KERN_FAILURE;
+    }
+  }
+
+  return result;
+}
+
+//=============================================================================
+// Sets keys in the parameters dictionary that are specific to process uptime.
+// The two we set are process up time, and process crash time.
+void Inspector::SetCrashTimeParameters() {
+  // Set process uptime parameter
+  struct timeval tv;
+  gettimeofday(&tv, NULL);
+
+  char processUptimeString[32], processCrashtimeString[32];
+  const char *processStartTimeString =
+    config_params_.GetValueForKey(BREAKPAD_PROCESS_START_TIME);
+
+  // Set up time if we've received the start time.
+  if (processStartTimeString) {
+    time_t processStartTime = strtol(processStartTimeString, NULL, 10);
+    time_t processUptime = tv.tv_sec - processStartTime;
+    sprintf(processUptimeString, "%zd", processUptime);
+    config_params_.SetKeyValue(BREAKPAD_PROCESS_UP_TIME, processUptimeString);
+  }
+
+  sprintf(processCrashtimeString, "%zd", tv.tv_sec);
+  config_params_.SetKeyValue(BREAKPAD_PROCESS_CRASH_TIME,
+                             processCrashtimeString);
+}
+
+bool Inspector::InspectTask() {
+  // keep the task quiet while we're looking at it
+  task_suspend(remote_task_);
+  DEBUGLOG(stderr, "Suspended Remote task\n");
+
+  NSString *minidumpDir;
+
+  const char *minidumpDirectory =
+    config_params_.GetValueForKey(BREAKPAD_DUMP_DIRECTORY);
+
+  SetCrashTimeParameters();
+  // If the client app has not specified a minidump directory,
+  // use a default of Library/<kDefaultLibrarySubdirectory>/<Product Name>
+  if (!minidumpDirectory || 0 == strlen(minidumpDirectory)) {
+    NSArray *libraryDirectories =
+      NSSearchPathForDirectoriesInDomains(NSLibraryDirectory,
+                                          NSUserDomainMask,
+                                          YES);
+
+    NSString *applicationSupportDirectory =
+        [libraryDirectories objectAtIndex:0];
+    NSString *library_subdirectory = [NSString 
+        stringWithUTF8String:kDefaultLibrarySubdirectory];
+    NSString *breakpad_product = [NSString 
+        stringWithUTF8String:config_params_.GetValueForKey(BREAKPAD_PRODUCT)];
+        
+    NSArray *path_components = [NSArray
+        arrayWithObjects:applicationSupportDirectory,
+                         library_subdirectory,
+                         breakpad_product,
+                         nil];
+
+    minidumpDir = [NSString pathWithComponents:path_components];
+  } else {
+    minidumpDir = [[NSString stringWithUTF8String:minidumpDirectory]
+                    stringByExpandingTildeInPath];
+  }
+  DEBUGLOG(stderr, 
+           "Writing minidump to directory (%s)\n",
+           [minidumpDir UTF8String]);
+
+  MinidumpLocation minidumpLocation(minidumpDir);
+
+  // Obscure bug alert:
+  // Don't use [NSString stringWithFormat] to build up the path here since it
+  // assumes system encoding and in RTL locales will prepend an LTR override
+  // character for paths beginning with '/' which fileSystemRepresentation does
+  // not remove. Filed as rdar://6889706 .
+  NSString *path_ns = [NSString
+      stringWithUTF8String:minidumpLocation.GetPath()];
+  NSString *pathid_ns = [NSString
+      stringWithUTF8String:minidumpLocation.GetID()];
+  NSString *minidumpPath = [path_ns stringByAppendingPathComponent:pathid_ns];
+  minidumpPath = [minidumpPath 
+      stringByAppendingPathExtension:@"dmp"];
+  
+  DEBUGLOG(stderr, 
+           "minidump path (%s)\n",
+           [minidumpPath UTF8String]);
+
+
+  config_file_.WriteFile( &config_params_,
+                          minidumpLocation.GetPath(),
+                          minidumpLocation.GetID());
+
+
+  MinidumpGenerator generator(remote_task_, handler_thread_);
+
+  if (exception_type_ && exception_code_) {
+    generator.SetExceptionInformation(exception_type_,
+                                      exception_code_,
+                                      exception_subcode_,
+                                      crashing_thread_);
+  }
+
+
+  bool result = generator.Write([minidumpPath fileSystemRepresentation]);
+
+  if (result) {
+    DEBUGLOG(stderr, "Wrote minidump - OK\n");
+  } else {
+    DEBUGLOG(stderr, "Error writing minidump - errno=%s\n",  strerror(errno));
+  }
+
+  // let the task continue
+  task_resume(remote_task_);
+  DEBUGLOG(stderr, "Resumed remote task\n");
+
+  return result;
+}
+
+//=============================================================================
+// The crashed task needs to be told that the inspection has finished.
+// It will wait on a mach port (with timeout) until we send acknowledgement.
+kern_return_t Inspector::SendAcknowledgement() {
+  if (ack_port_ != MACH_PORT_DEAD) {
+    MachPortSender sender(ack_port_);
+    MachSendMessage ack_message(kMsgType_InspectorAcknowledgement);
+
+    DEBUGLOG(stderr, "Inspector: trying to send acknowledgement to port %d\n",
+      ack_port_);
+
+    kern_return_t result = sender.SendMessage(ack_message, 2000);
+
+#if VERBOSE
+    PRINT_MACH_RESULT(result, "Inspector: sent acknowledgement");
+#endif
+
+    return result;
+  }
+
+  DEBUGLOG(stderr, "Inspector: port translation failure!\n");
+  return KERN_INVALID_NAME;
+}
+
+//=============================================================================
+void Inspector::LaunchReporter(const char *inConfigFilePath) {
+  // Extract the path to the reporter executable.
+  const char *reporterExecutablePath =
+          config_params_.GetValueForKey(BREAKPAD_REPORTER_EXE_LOCATION);
+  DEBUGLOG(stderr, "reporter path = %s\n", reporterExecutablePath);
+
+  // Setup and launch the crash dump sender.
+  const char *argv[3];
+  argv[0] = reporterExecutablePath;
+  argv[1] = inConfigFilePath;
+  argv[2] = NULL;
+
+  // Launch the reporter
+  pid_t pid = fork();
+
+  // If we're in the child, load in our new executable and run.
+  // The parent will not wait for the child to complete.
+  if (pid == 0) {
+    execv(argv[0], (char * const *)argv);
+    config_file_.Unlink();  // launch failed - get rid of config file
+    DEBUGLOG(stderr, "Inspector: unable to launch reporter app\n");
+    _exit(1);
+  }
+
+  // Wait until the Reporter child process exits.
+  //
+
+  // We'll use a timeout of one minute.
+  int timeoutCount = 60;   // 60 seconds
+
+  while (timeoutCount-- > 0) {
+    int status;
+    pid_t result = waitpid(pid, &status, WNOHANG);
+
+    if (result == 0) {
+      // The child has not yet finished.
+      sleep(1);
+    } else if (result == -1) {
+      DEBUGLOG(stderr, "Inspector: waitpid error (%d) waiting for reporter app\n",
+        errno);
+      break;
+    } else {
+      // child has finished
+      break;
+    }
+  }
+}
+
+} // namespace google_breakpad
+

thirdparty/breakpad/client/mac/crash_generation/InspectorMain.mm

@@ -0,0 +1,65 @@
+// Copyright (c) 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Main driver for Inspector
+
+#import "client/mac/crash_generation/Inspector.h"
+#import <Cocoa/Cocoa.h>
+
+namespace google_breakpad {
+
+//=============================================================================
+extern "C" {
+
+int main(int argc, char *const argv[]) {
+#if DEBUG
+  // Since we're launched on-demand, this is necessary to see debugging
+  // output in the console window.
+  freopen("/dev/console", "w", stdout);
+  freopen("/dev/console", "w", stderr);
+#endif
+
+  NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
+
+  if (argc != 2) {
+    exit(0);
+  }
+  // Our first command-line argument contains the name of the service
+  // that we're providing.
+  google_breakpad::Inspector inspector;
+  inspector.Inspect(argv[1]);
+
+  [pool release];
+
+  return 0;
+}
+
+} // extern "C"
+
+} // namespace google_breakpad

thirdparty/breakpad/client/mac/crash_generation/client_info.h

@@ -0,0 +1,47 @@
+// Copyright (c) 2010 Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CLIENT_MAC_CRASH_GENERATION_CLIENT_INFO_H_
+#define CLIENT_MAC_CRASH_GENERATION_CLIENT_INFO_H_
+
+namespace google_breakpad {
+
+class ClientInfo {
+ public:
+  explicit ClientInfo(pid_t pid) : pid_(pid) {}
+
+  pid_t pid() const { return pid_; }
+
+ private:
+  pid_t pid_;
+};
+
+}  // namespace google_breakpad
+
+#endif  // CLIENT_MAC_CRASH_GENERATION_CLIENT_INFO_H_

thirdparty/breakpad/client/mac/crash_generation/crash_generation_client.cc

@@ -0,0 +1,72 @@
+// Copyright (c) 2010 Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "client/mac/crash_generation/crash_generation_client.h"
+
+#include "client/mac/crash_generation/crash_generation_server.h"
+#include "common/mac/MachIPC.h"
+
+namespace google_breakpad {
+
+bool CrashGenerationClient::RequestDumpForException(
+    int exception_type,
+    int exception_code,
+    int exception_subcode,
+    mach_port_t crashing_thread) {
+  // The server will send a message to this port indicating that it
+  // has finished its work.
+  ReceivePort acknowledge_port;
+
+  MachSendMessage message(kDumpRequestMessage);
+  message.AddDescriptor(mach_task_self());            // this task
+  message.AddDescriptor(crashing_thread);             // crashing thread
+  message.AddDescriptor(mach_thread_self());          // handler thread
+  message.AddDescriptor(acknowledge_port.GetPort());  // message receive port
+
+  ExceptionInfo info;
+  info.exception_type = exception_type;
+  info.exception_code = exception_code;
+  info.exception_subcode = exception_subcode;
+  message.SetData(&info, sizeof(info));
+
+  const mach_msg_timeout_t kSendTimeoutMs = 2 * 1000;
+  kern_return_t result = sender_.SendMessage(message, kSendTimeoutMs);
+  if (result != KERN_SUCCESS)
+    return false;
+
+  // Give the server slightly longer to reply since it has to
+  // inspect this task and write the minidump.
+  const mach_msg_timeout_t kReceiveTimeoutMs = 5 * 1000;
+  MachReceiveMessage acknowledge_message;
+  result = acknowledge_port.WaitForMessage(&acknowledge_message,
+					   kReceiveTimeoutMs);
+  return result == KERN_SUCCESS;
+}
+
+}  // namespace google_breakpad

thirdparty/breakpad/client/mac/crash_generation/crash_generation_client.h

@@ -0,0 +1,65 @@
+// Copyright (c) 2010 Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef GOOGLE_BREAKPAD_CLIENT_MAC_CRASH_GENERATION_CRASH_GENERATION_CLIENT_H_
+#define GOOGLE_BREAKPAD_CLIENT_MAC_CRASH_GENERATION_CRASH_GENERATION_CLIENT_H_
+
+#include "common/mac/MachIPC.h"
+
+namespace google_breakpad {
+
+class CrashGenerationClient {
+ public:
+  explicit CrashGenerationClient(const char* mach_port_name)
+    : sender_(mach_port_name) {
+  }
+
+  // Request the crash server to generate a dump.
+  //
+  // Return true if the dump was successful; false otherwise.
+  bool RequestDumpForException(int exception_type,
+			       int exception_code,
+			       int exception_subcode,
+			       mach_port_t crashing_thread);
+
+  bool RequestDump() {
+    return RequestDumpForException(0, 0, 0, MACH_PORT_NULL);
+  }
+
+ private:
+  MachPortSender sender_;
+
+  // Prevent copy construction and assignment.
+  CrashGenerationClient(const CrashGenerationClient&);
+  CrashGenerationClient& operator=(const CrashGenerationClient&);
+};
+
+}  // namespace google_breakpad
+
+#endif  // GOOGLE_BREAKPAD_CLIENT_MAC_CRASH_GENERATION_CRASH_GENERATION_CLIENT_H_

thirdparty/breakpad/client/mac/crash_generation/crash_generation_server.cc

@@ -0,0 +1,160 @@
+// Copyright (c) 2010 Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "client/mac/crash_generation/crash_generation_server.h"
+
+#include "client/mac/crash_generation/client_info.h"
+#include "client/mac/handler/minidump_generator.h"
+#include "common/mac/scoped_task_suspend-inl.h"
+
+namespace google_breakpad {
+
+CrashGenerationServer::CrashGenerationServer(
+    const char *mach_port_name,
+    OnClientDumpRequestCallback dump_callback,
+    void *dump_context,
+    OnClientExitingCallback exit_callback,
+    void *exit_context,
+    bool generate_dumps,
+    const std::string &dump_path)
+    : dump_callback_(dump_callback),
+      dump_context_(dump_context),
+      exit_callback_(exit_callback),
+      exit_context_(exit_context),
+      generate_dumps_(generate_dumps),
+      dump_dir_(dump_path.empty() ? "/tmp" : dump_path),
+      started_(false),
+      receive_port_(mach_port_name),
+      mach_port_name_(mach_port_name) {
+}
+
+CrashGenerationServer::~CrashGenerationServer() {
+  if (started_)
+    Stop();
+}
+
+bool CrashGenerationServer::Start() {
+  int thread_create_result = pthread_create(&server_thread_, NULL,
+                                            &WaitForMessages, this);
+  started_ = thread_create_result == 0;
+  return started_;
+}
+
+bool CrashGenerationServer::Stop() {
+  if (!started_)
+    return false;
+
+  // Send a quit message to the background thread, and then join it.
+  MachPortSender sender(mach_port_name_.c_str());
+  MachSendMessage quit_message(kQuitMessage);
+  const mach_msg_timeout_t kSendTimeoutMs = 2 * 1000;
+  kern_return_t result = sender.SendMessage(quit_message, kSendTimeoutMs);
+  if (result == KERN_SUCCESS) {
+    int thread_join_result = pthread_join(server_thread_, NULL);
+    started_ = thread_join_result != 0;
+  }
+
+  return !started_;
+}
+
+// static
+void *CrashGenerationServer::WaitForMessages(void *server) {
+  CrashGenerationServer *self =
+      reinterpret_cast<CrashGenerationServer*>(server);
+  while (self->WaitForOneMessage()) {}
+  return NULL;
+}
+
+bool CrashGenerationServer::WaitForOneMessage() {
+  MachReceiveMessage message;
+  kern_return_t result = receive_port_.WaitForMessage(&message,
+                                                      MACH_MSG_TIMEOUT_NONE);
+  if (result == KERN_SUCCESS) {
+    switch (message.GetMessageID()) {
+      case kDumpRequestMessage: {
+        ExceptionInfo &info = (ExceptionInfo &)*message.GetData();
+      
+        mach_port_t remote_task = message.GetTranslatedPort(0);
+        mach_port_t crashing_thread = message.GetTranslatedPort(1);
+        mach_port_t handler_thread = message.GetTranslatedPort(2);
+        mach_port_t ack_port = message.GetTranslatedPort(3);
+        pid_t remote_pid = -1;
+        pid_for_task(remote_task, &remote_pid);
+        ClientInfo client(remote_pid);
+
+        bool result;
+        std::string dump_path;
+        if (generate_dumps_) {
+          ScopedTaskSuspend suspend(remote_task);
+
+          MinidumpGenerator generator(remote_task, handler_thread);
+          dump_path = generator.UniqueNameInDirectory(dump_dir_, NULL);
+        
+          if (info.exception_type && info.exception_code) {
+            generator.SetExceptionInformation(info.exception_type,
+                                              info.exception_code,
+                                              info.exception_subcode,
+                                              crashing_thread);
+          }
+          result = generator.Write(dump_path.c_str());
+        } else {
+          result = true;
+        }
+
+        if (result && dump_callback_) {
+          dump_callback_(dump_context_, client, dump_path);
+        }
+
+        // TODO(ted): support a way for the client to send additional data,
+        // perhaps with a callback so users of the server can read the data
+        // themselves?
+      
+        if (ack_port != MACH_PORT_DEAD && ack_port != MACH_PORT_NULL) {
+          MachPortSender sender(ack_port);
+          MachSendMessage ack_message(kAcknowledgementMessage);
+          const mach_msg_timeout_t kSendTimeoutMs = 2 * 1000;
+
+          sender.SendMessage(ack_message, kSendTimeoutMs);
+        }
+
+        if (exit_callback_) {
+          exit_callback_(exit_context_, client);
+        }
+        break;
+      }
+      case kQuitMessage:
+        return false;
+    }
+  } else {  // result != KERN_SUCCESS
+    return false;
+  }
+  return true;
+}
+
+}  // namespace google_breakpad

thirdparty/breakpad/client/mac/crash_generation/crash_generation_server.h

@@ -0,0 +1,141 @@
+// Copyright (c) 2010 Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef GOOGLE_BREAKPAD_CLIENT_MAC_CRASH_GENERATION_CRASH_GENERATION_SERVER_H_
+#define GOOGLE_BREAKPAD_CLIENT_MAC_CRASH_GENERATION_CRASH_GENERATION_SERVER_H_
+
+#include <stdint.h>
+
+#include <string>
+
+#include "common/mac/MachIPC.h"
+
+namespace google_breakpad {
+
+class ClientInfo;
+
+// Messages the server can read via its mach port
+enum {
+  kDumpRequestMessage     = 1,
+  kAcknowledgementMessage = 2,
+  kQuitMessage            = 3
+};
+
+// Exception details sent by the client when requesting a dump.
+struct ExceptionInfo {
+  int32_t exception_type;
+  int32_t exception_code;
+  int32_t exception_subcode;
+};
+
+class CrashGenerationServer {
+ public:
+  // WARNING: callbacks may be invoked on a different thread
+  // than that which creates the CrashGenerationServer.  They must
+  // be thread safe.
+  typedef void (*OnClientDumpRequestCallback)(void *context,
+                                              const ClientInfo &client_info,
+                                              const std::string &file_path);
+
+  typedef void (*OnClientExitingCallback)(void *context,
+                                          const ClientInfo &client_info);
+
+  // Create an instance with the given parameters.
+  //
+  // mach_port_name: Named server port to listen on.
+  // dump_callback: Callback for a client crash dump request.
+  // dump_context: Context for client crash dump request callback.
+  // exit_callback: Callback for client process exit.
+  // exit_context: Context for client exit callback.
+  // generate_dumps: Whether to automatically generate dumps.
+  //     Client code of this class might want to generate dumps explicitly
+  //     in the crash dump request callback. In that case, false can be
+  //     passed for this parameter.
+  // dump_path: Path for generating dumps; required only if true is
+  //     passed for generateDumps parameter; NULL can be passed otherwise.
+  CrashGenerationServer(const char *mach_port_name,
+                        OnClientDumpRequestCallback dump_callback,
+                        void *dump_context,
+                        OnClientExitingCallback exit_callback,
+                        void *exit_context,
+                        bool generate_dumps,
+                        const std::string &dump_path);
+
+  ~CrashGenerationServer();
+
+  // Perform initialization steps needed to start listening to clients.
+  //
+  // Return true if initialization is successful; false otherwise.
+  bool Start();
+
+  // Stop the server.
+  bool Stop();
+
+ private:
+  // Return a unique filename at which a minidump can be written.
+  bool MakeMinidumpFilename(std::string &outFilename);
+
+  // Loop reading client messages and responding to them until
+  // a quit message is received.
+  static void *WaitForMessages(void *server);
+
+  // Wait for a single client message and respond to it. Returns false
+  // if a quit message was received or if an error occurred.
+  bool WaitForOneMessage();
+
+  OnClientDumpRequestCallback dump_callback_;
+  void *dump_context_;
+
+  OnClientExitingCallback exit_callback_;
+  void *exit_context_;
+
+  bool generate_dumps_;
+
+  std::string dump_dir_;
+
+  bool started_;
+
+  // The mach port that receives requests to dump from child processes.
+  ReceivePort receive_port_;
+
+  // The name of the mach port. Stored so the Stop method can message
+  // the background thread to shut it down.
+  std::string mach_port_name_;
+
+  // The thread that waits on the receive port.
+  pthread_t server_thread_;
+
+  // Disable copy constructor and operator=.
+  CrashGenerationServer(const CrashGenerationServer&);
+  CrashGenerationServer& operator=(const CrashGenerationServer&);
+};
+
+}  // namespace google_breakpad
+
+#endif  // GOOGLE_BREAKPAD_CLIENT_MAC_CRASH_GENERATION_CRASH_GENERATION_SERVER_H_

thirdparty/breakpad/client/mac/handler/breakpad_exc_server.h

@@ -0,0 +1,258 @@
+#ifndef	_exc_user_
+#define	_exc_user_
+
+/* Module exc */
+
+#include <string.h>
+#include <mach/ndr.h>
+#include <mach/boolean.h>
+#include <mach/kern_return.h>
+#include <mach/notify.h>
+#include <mach/mach_types.h>
+#include <mach/message.h>
+#include <mach/mig_errors.h>
+#include <mach/port.h>
+
+#ifdef AUTOTEST
+#ifndef FUNCTION_PTR_T
+#define FUNCTION_PTR_T
+typedef void (*function_ptr_t)(mach_port_t, char *, mach_msg_type_number_t);
+typedef struct {
+        char            *name;
+        function_ptr_t  function;
+} function_table_entry;
+typedef function_table_entry 	*function_table_t;
+#endif /* FUNCTION_PTR_T */
+#endif /* AUTOTEST */
+
+#ifndef	exc_MSG_COUNT
+#define	exc_MSG_COUNT	3
+#endif	/* exc_MSG_COUNT */
+
+#include <mach/std_types.h>
+#include <mach/mig.h>
+#include <mach/mig.h>
+#include <mach/mach_types.h>
+
+#ifdef __BeforeMigUserHeader
+__BeforeMigUserHeader
+#endif /* __BeforeMigUserHeader */
+
+#include <sys/cdefs.h>
+__BEGIN_DECLS
+
+
+/* Routine exception_raise */
+#ifdef	mig_external
+mig_external
+#else
+extern
+#endif	/* mig_external */
+kern_return_t exception_raise
+(
+	mach_port_t exception_port,
+	mach_port_t thread,
+	mach_port_t task,
+	exception_type_t exception,
+	exception_data_t code,
+	mach_msg_type_number_t codeCnt
+);
+
+/* Routine exception_raise_state */
+#ifdef	mig_external
+mig_external
+#else
+extern
+#endif	/* mig_external */
+kern_return_t exception_raise_state
+(
+	mach_port_t exception_port,
+	exception_type_t exception,
+	const exception_data_t code,
+	mach_msg_type_number_t codeCnt,
+	int *flavor,
+	const thread_state_t old_state,
+	mach_msg_type_number_t old_stateCnt,
+	thread_state_t new_state,
+	mach_msg_type_number_t *new_stateCnt
+);
+
+/* Routine exception_raise_state_identity */
+#ifdef	mig_external
+mig_external
+#else
+extern
+#endif	/* mig_external */
+kern_return_t exception_raise_state_identity
+(
+	mach_port_t exception_port,
+	mach_port_t thread,
+	mach_port_t task,
+	exception_type_t exception,
+	exception_data_t code,
+	mach_msg_type_number_t codeCnt,
+	int *flavor,
+	thread_state_t old_state,
+	mach_msg_type_number_t old_stateCnt,
+	thread_state_t new_state,
+	mach_msg_type_number_t *new_stateCnt
+);
+
+__END_DECLS
+
+/********************** Caution **************************/
+/* The following data types should be used to calculate  */
+/* maximum message sizes only. The actual message may be */
+/* smaller, and the position of the arguments within the */
+/* message layout may vary from what is presented here.  */
+/* For example, if any of the arguments are variable-    */
+/* sized, and less than the maximum is sent, the data    */
+/* will be packed tight in the actual message to reduce  */
+/* the presence of holes.                                */
+/********************** Caution **************************/
+
+/* typedefs for all requests */
+
+#ifndef __Request__exc_subsystem__defined
+#define __Request__exc_subsystem__defined
+
+#ifdef  __MigPackStructs
+#pragma pack(4)
+#endif
+	typedef struct {
+		mach_msg_header_t Head;
+		/* start of the kernel processed data */
+		mach_msg_body_t msgh_body;
+		mach_msg_port_descriptor_t thread;
+		mach_msg_port_descriptor_t task;
+		/* end of the kernel processed data */
+		NDR_record_t NDR;
+		exception_type_t exception;
+		mach_msg_type_number_t codeCnt;
+		integer_t code[2];
+	} __Request__exception_raise_t;
+#ifdef  __MigPackStructs
+#pragma pack()
+#endif
+
+#ifdef  __MigPackStructs
+#pragma pack(4)
+#endif
+	typedef struct {
+		mach_msg_header_t Head;
+		NDR_record_t NDR;
+		exception_type_t exception;
+		mach_msg_type_number_t codeCnt;
+		integer_t code[2];
+		int flavor;
+		mach_msg_type_number_t old_stateCnt;
+		natural_t old_state[144];
+	} __Request__exception_raise_state_t;
+#ifdef  __MigPackStructs
+#pragma pack()
+#endif
+
+#ifdef  __MigPackStructs
+#pragma pack(4)
+#endif
+	typedef struct {
+		mach_msg_header_t Head;
+		/* start of the kernel processed data */
+		mach_msg_body_t msgh_body;
+		mach_msg_port_descriptor_t thread;
+		mach_msg_port_descriptor_t task;
+		/* end of the kernel processed data */
+		NDR_record_t NDR;
+		exception_type_t exception;
+		mach_msg_type_number_t codeCnt;
+		integer_t code[2];
+		int flavor;
+		mach_msg_type_number_t old_stateCnt;
+		natural_t old_state[144];
+	} __Request__exception_raise_state_identity_t;
+#ifdef  __MigPackStructs
+#pragma pack()
+#endif
+#endif /* !__Request__exc_subsystem__defined */
+
+/* union of all requests */
+
+#ifndef __RequestUnion__exc_subsystem__defined
+#define __RequestUnion__exc_subsystem__defined
+union __RequestUnion__exc_subsystem {
+	__Request__exception_raise_t Request_exception_raise;
+	__Request__exception_raise_state_t Request_exception_raise_state;
+	__Request__exception_raise_state_identity_t Request_exception_raise_state_identity;
+};
+#endif /* !__RequestUnion__exc_subsystem__defined */
+/* typedefs for all replies */
+
+#ifndef __Reply__exc_subsystem__defined
+#define __Reply__exc_subsystem__defined
+
+#ifdef  __MigPackStructs
+#pragma pack(4)
+#endif
+	typedef struct {
+		mach_msg_header_t Head;
+		NDR_record_t NDR;
+		kern_return_t RetCode;
+	} __Reply__exception_raise_t;
+#ifdef  __MigPackStructs
+#pragma pack()
+#endif
+
+#ifdef  __MigPackStructs
+#pragma pack(4)
+#endif
+	typedef struct {
+		mach_msg_header_t Head;
+		NDR_record_t NDR;
+		kern_return_t RetCode;
+		int flavor;
+		mach_msg_type_number_t new_stateCnt;
+		natural_t new_state[144];
+	} __Reply__exception_raise_state_t;
+#ifdef  __MigPackStructs
+#pragma pack()
+#endif
+
+#ifdef  __MigPackStructs
+#pragma pack(4)
+#endif
+	typedef struct {
+		mach_msg_header_t Head;
+		NDR_record_t NDR;
+		kern_return_t RetCode;
+		int flavor;
+		mach_msg_type_number_t new_stateCnt;
+		natural_t new_state[144];
+	} __Reply__exception_raise_state_identity_t;
+#ifdef  __MigPackStructs
+#pragma pack()
+#endif
+#endif /* !__Reply__exc_subsystem__defined */
+
+/* union of all replies */
+
+#ifndef __ReplyUnion__exc_subsystem__defined
+#define __ReplyUnion__exc_subsystem__defined
+union __ReplyUnion__exc_subsystem {
+	__Reply__exception_raise_t Reply_exception_raise;
+	__Reply__exception_raise_state_t Reply_exception_raise_state;
+	__Reply__exception_raise_state_identity_t Reply_exception_raise_state_identity;
+};
+#endif /* !__RequestUnion__exc_subsystem__defined */
+
+#ifndef subsystem_to_name_map_exc
+#define subsystem_to_name_map_exc \
+    { "exception_raise", 2401 },\
+    { "exception_raise_state", 2402 },\
+    { "exception_raise_state_identity", 2403 }
+#endif
+
+#ifdef __AfterMigUserHeader
+__AfterMigUserHeader
+#endif /* __AfterMigUserHeader */
+
+#endif	 /* _exc_user_ */

thirdparty/breakpad/client/mac/handler/breakpad_nlist_64.cc

@@ -0,0 +1,412 @@
+/*
+ * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+/*
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by the University of
+ *      California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+
+/*
+ * This file was copied from libc/gen/nlist.c from Darwin's source code       
+ * The version of nlist used as a base is from 10.5.2, libc-498               
+ * http://www.opensource.apple.com/darwinsource/10.5.2/Libc-498/gen/nlist.c   
+ *                                                                            
+ * The full tarball is at:                                                    
+ * http://www.opensource.apple.com/darwinsource/tarballs/apsl/Libc-498.tar.gz 
+ *                                                                            
+ * I've modified it to be compatible with 64-bit images.
+*/
+
+#include "breakpad_nlist_64.h"
+
+#include <fcntl.h>
+#include <mach-o/nlist.h>
+#include <mach-o/loader.h>
+#include <mach-o/fat.h>
+#include <mach/mach.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/uio.h>
+#include <TargetConditionals.h>
+#include <unistd.h>
+
+/* Stuff lifted from <a.out.h> and <sys/exec.h> since they are gone */
+/*
+ * Header prepended to each a.out file.
+ */
+struct exec {
+  unsigned short  a_machtype;     /* machine type */
+  unsigned short  a_magic;        /* magic number */
+  unsigned long a_text;         /* size of text segment */
+  unsigned long a_data;         /* size of initialized data */
+  unsigned long a_bss;          /* size of uninitialized data */
+  unsigned long a_syms;         /* size of symbol table */
+  unsigned long a_entry;        /* entry point */
+  unsigned long a_trsize;       /* size of text relocation */
+  unsigned long a_drsize;       /* size of data relocation */
+};
+
+#define OMAGIC  0407            /* old impure format */
+#define NMAGIC  0410            /* read-only text */
+#define ZMAGIC  0413            /* demand load format */
+
+#define N_BADMAG(x)                                                     \
+  (((x).a_magic)!=OMAGIC && ((x).a_magic)!=NMAGIC && ((x).a_magic)!=ZMAGIC)
+#define N_TXTOFF(x)                                     \
+  ((x).a_magic==ZMAGIC ? 0 : sizeof (struct exec))
+#define N_SYMOFF(x)                                                     \
+  (N_TXTOFF(x) + (x).a_text+(x).a_data + (x).a_trsize+(x).a_drsize)
+
+// Traits structs for specializing function templates to handle
+// 32-bit/64-bit Mach-O files.
+template<typename T>
+struct MachBits {};
+
+typedef struct nlist nlist32;
+typedef struct nlist_64 nlist64;
+
+template<>
+struct MachBits<nlist32> {
+  typedef mach_header mach_header_type;
+  typedef uint32_t word_type;
+  static const uint32_t magic = MH_MAGIC;
+};
+
+template<>
+struct MachBits<nlist64> {
+  typedef mach_header_64 mach_header_type;
+  typedef uint64_t word_type;
+  static const uint32_t magic = MH_MAGIC_64;
+};
+
+template<typename nlist_type>
+int
+__breakpad_fdnlist(int fd, nlist_type *list, const char **symbolNames,
+                   cpu_type_t cpu_type);
+
+/*
+ * nlist - retreive attributes from name list (string table version)
+ */
+
+template <typename nlist_type>
+int breakpad_nlist_common(const char *name,
+                          nlist_type *list,
+                          const char **symbolNames,
+                          cpu_type_t cpu_type) {
+  int fd = open(name, O_RDONLY, 0);
+  if (fd < 0)
+    return -1;
+  int n = __breakpad_fdnlist(fd, list, symbolNames, cpu_type);
+  close(fd);
+  return n;
+}
+
+int breakpad_nlist(const char *name,
+                   struct nlist *list,
+                   const char **symbolNames,
+                   cpu_type_t cpu_type) {
+  return breakpad_nlist_common(name, list, symbolNames, cpu_type);
+}
+
+int breakpad_nlist(const char *name,
+                   struct nlist_64 *list,
+                   const char **symbolNames,
+                   cpu_type_t cpu_type) {
+  return breakpad_nlist_common(name, list, symbolNames, cpu_type);
+}
+
+/* Note: __fdnlist() is called from kvm_nlist in libkvm's kvm.c */
+
+template<typename nlist_type>
+int __breakpad_fdnlist(int fd, nlist_type *list, const char **symbolNames,
+                       cpu_type_t cpu_type) {
+  typedef typename MachBits<nlist_type>::mach_header_type mach_header_type;
+  typedef typename MachBits<nlist_type>::word_type word_type;
+
+  const uint32_t magic = MachBits<nlist_type>::magic;
+
+  int maxlen = 500;
+  int nreq = 0;
+  for (nlist_type* q = list;
+       symbolNames[q-list] && symbolNames[q-list][0];
+       q++, nreq++) {
+
+    q->n_type = 0;
+    q->n_value = 0;
+    q->n_desc = 0;
+    q->n_sect = 0;
+    q->n_un.n_strx = 0;
+  }
+
+  struct exec buf;
+  if (read(fd, (char *)&buf, sizeof(buf)) != sizeof(buf) ||
+      (N_BADMAG(buf) && *((long *)&buf) != magic &&
+       NXSwapBigLongToHost(*((long *)&buf)) != FAT_MAGIC) &&
+      /* The following is the big-endian ppc64 check */
+      (*((long*)&buf)) != FAT_MAGIC) {
+    return -1;
+  }
+
+  /* Deal with fat file if necessary */
+  unsigned arch_offset = 0;
+  if (NXSwapBigLongToHost(*((long *)&buf)) == FAT_MAGIC ||
+      /* The following is the big-endian ppc64 check */
+      *((unsigned int *)&buf) == FAT_MAGIC) {
+    /* Get host info */
+    host_t host = mach_host_self();
+    unsigned i = HOST_BASIC_INFO_COUNT;
+    struct host_basic_info hbi;
+    kern_return_t kr;
+    if ((kr = host_info(host, HOST_BASIC_INFO,
+                        (host_info_t)(&hbi), &i)) != KERN_SUCCESS) {
+      return -1;
+    }
+    mach_port_deallocate(mach_task_self(), host);
+
+    /* Read in the fat header */
+    struct fat_header fh;
+    if (lseek(fd, 0, SEEK_SET) == -1) {
+      return -1;
+    }
+    if (read(fd, (char *)&fh, sizeof(fh)) != sizeof(fh)) {
+      return -1;
+    }
+
+    /* Convert fat_narchs to host byte order */
+    fh.nfat_arch = NXSwapBigIntToHost(fh.nfat_arch);
+
+    /* Read in the fat archs */
+    struct fat_arch *fat_archs =
+        (struct fat_arch *)malloc(fh.nfat_arch * sizeof(struct fat_arch));
+    if (fat_archs == NULL) {
+      return -1;
+    }
+    if (read(fd, (char *)fat_archs,
+             sizeof(struct fat_arch) * fh.nfat_arch) !=
+        (ssize_t)sizeof(struct fat_arch) * fh.nfat_arch) {
+      free(fat_archs);
+      return -1;
+    }
+
+    /*
+     * Convert archs to host byte ordering (a constraint of
+     * cpusubtype_getbestarch()
+     */
+    for (unsigned i = 0; i < fh.nfat_arch; i++) {
+      fat_archs[i].cputype =
+        NXSwapBigIntToHost(fat_archs[i].cputype);
+      fat_archs[i].cpusubtype =
+        NXSwapBigIntToHost(fat_archs[i].cpusubtype);
+      fat_archs[i].offset =
+        NXSwapBigIntToHost(fat_archs[i].offset);
+      fat_archs[i].size =
+        NXSwapBigIntToHost(fat_archs[i].size);
+      fat_archs[i].align =
+        NXSwapBigIntToHost(fat_archs[i].align);
+    }
+
+    struct fat_arch *fap = NULL;
+    for (unsigned i = 0; i < fh.nfat_arch; i++) {
+      if (fat_archs[i].cputype == cpu_type) {
+        fap = &fat_archs[i];
+        break;
+      }
+    }
+
+    if (!fap) {
+      free(fat_archs);
+      return -1;
+    }
+    arch_offset = fap->offset;
+    free(fat_archs);
+
+    /* Read in the beginning of the architecture-specific file */
+    if (lseek(fd, arch_offset, SEEK_SET) == -1) {
+      return -1;
+    }
+    if (read(fd, (char *)&buf, sizeof(buf)) != sizeof(buf)) {
+      return -1;
+    }
+  }
+
+  off_t sa;  /* symbol address */
+  off_t ss;  /* start of strings */
+  register register_t n;
+  if (*((unsigned int *)&buf) == magic) {
+    if (lseek(fd, arch_offset, SEEK_SET) == -1) {
+      return -1;
+    }
+    mach_header_type mh;
+    if (read(fd, (char *)&mh, sizeof(mh)) != sizeof(mh)) {
+      return -1;
+    }
+
+    struct load_command *load_commands =
+        (struct load_command *)malloc(mh.sizeofcmds);
+    if (load_commands == NULL) {
+      return -1;
+    }
+    if (read(fd, (char *)load_commands, mh.sizeofcmds) !=
+        mh.sizeofcmds) {
+      free(load_commands);
+      return -1;
+    }
+    struct symtab_command *stp = NULL;
+    struct load_command *lcp = load_commands;
+    // iterate through all load commands, looking for
+    // LC_SYMTAB load command
+    for (long i = 0; i < mh.ncmds; i++) {
+      if (lcp->cmdsize % sizeof(word_type) != 0 ||
+          lcp->cmdsize <= 0 ||
+          (char *)lcp + lcp->cmdsize >
+          (char *)load_commands + mh.sizeofcmds) {
+        free(load_commands);
+        return -1;
+      }
+      if (lcp->cmd == LC_SYMTAB) {
+        if (lcp->cmdsize !=
+            sizeof(struct symtab_command)) {
+          free(load_commands);
+          return -1;
+        }
+        stp = (struct symtab_command *)lcp;
+        break;
+      }
+      lcp = (struct load_command *)
+        ((char *)lcp + lcp->cmdsize);
+    }
+    if (stp == NULL) {
+      free(load_commands);
+      return -1;
+    }
+    // sa points to the beginning of the symbol table
+    sa = stp->symoff + arch_offset;
+    // ss points to the beginning of the string table
+    ss = stp->stroff + arch_offset;
+    // n is the number of bytes in the symbol table
+    // each symbol table entry is an nlist structure
+    n = stp->nsyms * sizeof(nlist_type);
+    free(load_commands);
+  } else {
+    sa = N_SYMOFF(buf) + arch_offset;
+    ss = sa + buf.a_syms + arch_offset;
+    n = buf.a_syms;
+  }
+
+  if (lseek(fd, sa, SEEK_SET) == -1) {
+    return -1;
+  }
+
+  // the algorithm here is to read the nlist entries in m-sized
+  // chunks into q.  q is then iterated over. for each entry in q,
+  // use the string table index(q->n_un.n_strx) to read the symbol 
+  // name, then scan the nlist entries passed in by the user(via p),
+  // and look for a match
+  while (n) {
+    nlist_type space[BUFSIZ/sizeof (nlist_type)];
+    register register_t m = sizeof (space);
+
+    if (n < m)
+      m = n;
+    if (read(fd, (char *)space, m) != m)
+      break;
+    n -= m;
+    long savpos = lseek(fd, 0, SEEK_CUR);
+    if (savpos == -1) {
+      return -1;
+    }
+    for (nlist_type* q = space; (m -= sizeof(nlist_type)) >= 0; q++) {
+      char nambuf[BUFSIZ];
+
+      if (q->n_un.n_strx == 0 || q->n_type & N_STAB)
+        continue;
+
+      // seek to the location in the binary where the symbol
+      // name is stored & read it into memory
+      if (lseek(fd, ss+q->n_un.n_strx, SEEK_SET) == -1) {
+        return -1;
+      }
+      if (read(fd, nambuf, maxlen+1) == -1) {
+        return -1;
+      }
+      const char *s2 = nambuf;
+      for (nlist_type *p = list; 
+           symbolNames[p-list] && symbolNames[p-list][0];
+           p++) {
+        // get the symbol name the user has passed in that 
+        // corresponds to the nlist entry that we're looking at
+        const char *s1 = symbolNames[p - list];
+        while (*s1) {
+          if (*s1++ != *s2++)
+            goto cont;
+        }
+        if (*s2)
+          goto cont;
+
+        p->n_value = q->n_value;
+        p->n_type = q->n_type;
+        p->n_desc = q->n_desc;
+        p->n_sect = q->n_sect;
+        p->n_un.n_strx = q->n_un.n_strx;
+        if (--nreq == 0)
+          return nreq;
+
+        break;
+      cont:           ;
+      }
+    }
+    if (lseek(fd, savpos, SEEK_SET) == -1) {
+      return -1;
+    }
+  }
+  return nreq;
+}

thirdparty/breakpad/client/mac/handler/breakpad_nlist_64.h

@@ -0,0 +1,47 @@
+// Copyright (c) 2008, Google Inc.
+// All rights reserved
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// breakpad_nlist.h
+//
+// This file is meant to provide a header for clients of the modified
+// nlist function implemented to work on 64-bit.
+
+#ifndef CLIENT_MAC_HANDLER_BREAKPAD_NLIST_H__
+
+#include <mach/machine.h>
+
+int breakpad_nlist(const char *name,
+                   struct nlist *list,
+                   const char **symbolNames,
+                   cpu_type_t cpu_type);
+int breakpad_nlist(const char *name,
+                   struct nlist_64 *list,
+                   const char **symbolNames,
+                   cpu_type_t cpu_type);
+
+#endif  /* CLIENT_MAC_HANDLER_BREAKPAD_NLIST_H__ */

thirdparty/breakpad/client/mac/handler/dynamic_images.cc

@@ -0,0 +1,567 @@
+// Copyright (c) 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "client/mac/handler/dynamic_images.h"
+
+extern "C" { // needed to compile on Leopard
+  #include <mach-o/nlist.h>
+  #include <stdlib.h>
+  #include <stdio.h>
+}
+
+#include "breakpad_nlist_64.h"
+#include <AvailabilityMacros.h>
+#include <assert.h>
+#include <CoreServices/CoreServices.h>
+#include <dlfcn.h>
+#include <mach/mach_vm.h>
+#include <mach/task_info.h>
+#include <sys/sysctl.h>
+
+#include <algorithm>
+#include <string>
+#include <vector>
+
+#ifndef MAC_OS_X_VERSION_10_6
+#define MAC_OS_X_VERSION_10_6 1060
+#endif
+
+#if MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_6
+
+// Fallback declarations for TASK_DYLD_INFO and friends, introduced in
+// <mach/task_info.h> in the Mac OS X 10.6 SDK.
+#define TASK_DYLD_INFO 17
+struct task_dyld_info {
+  mach_vm_address_t all_image_info_addr;
+  mach_vm_size_t all_image_info_size;
+};
+typedef struct task_dyld_info task_dyld_info_data_t;
+typedef struct task_dyld_info *task_dyld_info_t;
+#define TASK_DYLD_INFO_COUNT (sizeof(task_dyld_info_data_t) / sizeof(natural_t))
+
+#endif
+
+namespace google_breakpad {
+
+using std::string;
+using std::vector;
+
+//==============================================================================
+// Returns the size of the memory region containing |address| and the
+// number of bytes from |address| to the end of the region.
+// We potentially, will extend the size of the original
+// region by the size of the following region if it's contiguous with the
+// first in order to handle cases when we're reading strings and they
+// straddle two vm regions.
+//
+static mach_vm_size_t GetMemoryRegionSize(task_port_t target_task,
+                                          const uint64_t address,
+                                          mach_vm_size_t *size_to_end) {
+  mach_vm_address_t region_base = (mach_vm_address_t)address;
+  mach_vm_size_t region_size;
+  natural_t nesting_level = 0;
+  vm_region_submap_info_64 submap_info;
+  mach_msg_type_number_t info_count = VM_REGION_SUBMAP_INFO_COUNT_64;
+
+  // Get information about the vm region containing |address|
+  vm_region_recurse_info_t region_info;
+  region_info = reinterpret_cast<vm_region_recurse_info_t>(&submap_info);
+
+  kern_return_t result =
+    mach_vm_region_recurse(target_task,
+                           &region_base,
+                           &region_size,
+                           &nesting_level,
+                           region_info,
+                           &info_count);
+
+  if (result == KERN_SUCCESS) {
+    // Get distance from |address| to the end of this region
+    *size_to_end = region_base + region_size -(mach_vm_address_t)address;
+
+    // If we want to handle strings as long as 4096 characters we may need
+    // to check if there's a vm region immediately following the first one.
+    // If so, we need to extend |*size_to_end| to go all the way to the end
+    // of the second region.
+    if (*size_to_end < 4096) {
+      // Second region starts where the first one ends
+      mach_vm_address_t region_base2 =
+        (mach_vm_address_t)(region_base + region_size);
+      mach_vm_size_t region_size2;
+
+      // Get information about the following vm region
+      result =
+        mach_vm_region_recurse(target_task,
+                               &region_base2,
+                               &region_size2,
+                               &nesting_level,
+                               region_info,
+                               &info_count);
+
+      // Extend region_size to go all the way to the end of the 2nd region
+      if (result == KERN_SUCCESS
+          && region_base2 == region_base + region_size) {
+        region_size += region_size2;
+      }
+    }
+
+    *size_to_end = region_base + region_size -(mach_vm_address_t)address;
+  } else {
+    region_size = 0;
+    *size_to_end = 0;
+  }
+
+  return region_size;
+}
+
+#define kMaxStringLength 8192
+//==============================================================================
+// Reads a NULL-terminated string from another task.
+//
+// Warning!  This will not read any strings longer than kMaxStringLength-1
+//
+static string ReadTaskString(task_port_t target_task,
+                             const uint64_t address) {
+  // The problem is we don't know how much to read until we know how long
+  // the string is. And we don't know how long the string is, until we've read
+  // the memory!  So, we'll try to read kMaxStringLength bytes
+  // (or as many bytes as we can until we reach the end of the vm region).
+  mach_vm_size_t size_to_end;
+  GetMemoryRegionSize(target_task, address, &size_to_end);
+
+  if (size_to_end > 0) {
+    mach_vm_size_t size_to_read =
+      size_to_end > kMaxStringLength ? kMaxStringLength : size_to_end;
+
+    vector<uint8_t> bytes;
+    if (ReadTaskMemory(target_task, address, (size_t)size_to_read, bytes) !=
+        KERN_SUCCESS)
+      return string();
+
+    return string(reinterpret_cast<const char*>(&bytes[0]));
+  }
+
+  return string();
+}
+
+//==============================================================================
+// Reads an address range from another task. The bytes read will be returned
+// in bytes, which will be resized as necessary.
+kern_return_t ReadTaskMemory(task_port_t target_task,
+                             const uint64_t address,
+                             size_t length,
+                             vector<uint8_t> &bytes) {
+  int systemPageSize = getpagesize();
+
+  // use the negative of the page size for the mask to find the page address
+  mach_vm_address_t page_address = address & (-systemPageSize);
+
+  mach_vm_address_t last_page_address =
+      (address + length + (systemPageSize - 1)) & (-systemPageSize);
+
+  mach_vm_size_t page_size = last_page_address - page_address;
+  uint8_t* local_start;
+  uint32_t local_length;
+
+  kern_return_t r = mach_vm_read(target_task,
+                                 page_address,
+                                 page_size,
+                                 reinterpret_cast<vm_offset_t*>(&local_start),
+                                 &local_length);
+
+  if (r != KERN_SUCCESS)
+    return r;
+
+  bytes.resize(length);
+  memcpy(&bytes[0],
+         &local_start[(mach_vm_address_t)address - page_address],
+         length);
+  mach_vm_deallocate(mach_task_self(), (uintptr_t)local_start, local_length);
+  return KERN_SUCCESS;
+}
+
+#pragma mark -
+
+//==============================================================================
+// Traits structs for specializing function templates to handle
+// 32-bit/64-bit Mach-O files.
+struct MachO32 {
+  typedef mach_header mach_header_type;
+  typedef segment_command mach_segment_command_type;
+  typedef dyld_image_info32 dyld_image_info;
+  typedef dyld_all_image_infos32 dyld_all_image_infos;
+  typedef struct nlist nlist_type;
+  static const uint32_t magic = MH_MAGIC;
+  static const uint32_t segment_load_command = LC_SEGMENT;
+};
+
+struct MachO64 {
+  typedef mach_header_64 mach_header_type;
+  typedef segment_command_64 mach_segment_command_type;
+  typedef dyld_image_info64 dyld_image_info;
+  typedef dyld_all_image_infos64 dyld_all_image_infos;
+  typedef struct nlist_64 nlist_type;
+  static const uint32_t magic = MH_MAGIC_64;
+  static const uint32_t segment_load_command = LC_SEGMENT_64;
+};
+
+template<typename MachBits>
+bool FindTextSection(DynamicImage& image) {
+  typedef typename MachBits::mach_header_type mach_header_type;
+  typedef typename MachBits::mach_segment_command_type
+      mach_segment_command_type;
+  
+  const mach_header_type* header =
+      reinterpret_cast<const mach_header_type*>(&image.header_[0]);
+
+  if(header->magic != MachBits::magic) {
+    return false;
+  }
+
+  const struct load_command *cmd =
+      reinterpret_cast<const struct load_command *>(header + 1);
+
+  bool found_text_section = false;
+  bool found_dylib_id_command = false;
+  for (unsigned int i = 0; cmd && (i < header->ncmds); ++i) {
+    if (!found_text_section) {
+      if (cmd->cmd == MachBits::segment_load_command) {
+        const mach_segment_command_type *seg =
+            reinterpret_cast<const mach_segment_command_type *>(cmd);
+
+        if (!strcmp(seg->segname, "__TEXT")) {
+          image.vmaddr_ = seg->vmaddr;
+          image.vmsize_ = seg->vmsize;
+          image.slide_ = 0;
+
+          if (seg->fileoff == 0 && seg->filesize != 0) {
+            image.slide_ =
+                (uintptr_t)image.GetLoadAddress() - (uintptr_t)seg->vmaddr;
+          }
+          found_text_section = true;
+        }
+      }
+    }
+
+    if (!found_dylib_id_command) {
+      if (cmd->cmd == LC_ID_DYLIB) {
+        const struct dylib_command *dc =
+            reinterpret_cast<const struct dylib_command *>(cmd);
+
+        image.version_ = dc->dylib.current_version;
+        found_dylib_id_command = true;
+      }
+    }
+
+    if (found_dylib_id_command && found_text_section) {
+      return true;
+    }
+
+    cmd = reinterpret_cast<const struct load_command *>
+        (reinterpret_cast<const char *>(cmd) + cmd->cmdsize);
+  }
+
+  return false;
+}
+
+//==============================================================================
+// Initializes vmaddr_, vmsize_, and slide_
+void DynamicImage::CalculateMemoryAndVersionInfo() {
+  // unless we can process the header, ensure that calls to
+  // IsValid() will return false
+  vmaddr_ = 0;
+  vmsize_ = 0;
+  slide_ = 0;
+  version_ = 0;
+
+  // The function template above does all the real work.
+  if (Is64Bit())
+    FindTextSection<MachO64>(*this);
+  else
+    FindTextSection<MachO32>(*this);
+}
+
+//==============================================================================
+// The helper function template abstracts the 32/64-bit differences.
+template<typename MachBits>
+uint32_t GetFileTypeFromHeader(DynamicImage& image) {
+  typedef typename MachBits::mach_header_type mach_header_type;
+
+  const mach_header_type* header =
+      reinterpret_cast<const mach_header_type*>(&image.header_[0]);
+  return header->filetype;
+}
+
+uint32_t DynamicImage::GetFileType() {
+  if (Is64Bit())
+    return GetFileTypeFromHeader<MachO64>(*this);
+
+  return GetFileTypeFromHeader<MachO32>(*this);
+}
+
+#pragma mark -
+
+//==============================================================================
+// Loads information about dynamically loaded code in the given task.
+DynamicImages::DynamicImages(mach_port_t task)
+    : task_(task),
+      cpu_type_(DetermineTaskCPUType(task)),
+      image_list_() {
+  ReadImageInfoForTask();
+}
+
+template<typename MachBits>
+static uint64_t LookupSymbol(const char* symbol_name,
+                             const char* filename,
+                             cpu_type_t cpu_type) {
+  typedef typename MachBits::nlist_type nlist_type;
+
+  nlist_type symbol_info[8] = {};
+  const char *symbolNames[2] = { symbol_name, "\0" };
+  nlist_type &list = symbol_info[0];
+  int invalidEntriesCount = breakpad_nlist(filename,
+                                           &list,
+                                           symbolNames,
+                                           cpu_type);
+
+  if(invalidEntriesCount != 0) {
+    return 0;
+  }
+
+  assert(list.n_value);
+  return list.n_value;
+}
+
+static SInt32 GetOSVersionInternal() {
+  SInt32 os_version = 0;
+  Gestalt(gestaltSystemVersion, &os_version);
+  return os_version;
+}
+
+static SInt32 GetOSVersion() {
+  static SInt32 os_version = GetOSVersionInternal();
+  return os_version;
+}
+
+static bool IsSnowLeopardOrLater() {
+#if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_6
+  return true;
+#else
+  return GetOSVersion() >= 0x1060;
+#endif
+}
+
+uint64_t DynamicImages::GetDyldAllImageInfosPointer() {
+  if (IsSnowLeopardOrLater()) {
+    task_dyld_info_data_t task_dyld_info;
+    mach_msg_type_number_t count = TASK_DYLD_INFO_COUNT;
+    if (task_info(task_, TASK_DYLD_INFO, (task_info_t)&task_dyld_info,
+                  &count) != KERN_SUCCESS) {
+      return NULL;
+    }
+
+    return (uint64_t)task_dyld_info.all_image_info_addr;
+  } else {
+    const char *imageSymbolName = "_dyld_all_image_infos";
+    const char *dyldPath = "/usr/lib/dyld";
+
+    if (Is64Bit())
+      return LookupSymbol<MachO64>(imageSymbolName, dyldPath, cpu_type_);
+    return LookupSymbol<MachO32>(imageSymbolName, dyldPath, cpu_type_);
+  }
+}
+
+//==============================================================================
+// This code was written using dyld_debug.c (from Darwin) as a guide.
+
+template<typename MachBits>
+void ReadImageInfo(DynamicImages& images,
+                   uint64_t image_list_address) {
+  typedef typename MachBits::dyld_image_info dyld_image_info;
+  typedef typename MachBits::dyld_all_image_infos dyld_all_image_infos;
+  typedef typename MachBits::mach_header_type mach_header_type;
+
+  // Read the structure inside of dyld that contains information about
+  // loaded images.  We're reading from the desired task's address space.
+
+  // Here we make the assumption that dyld loaded at the same address in
+  // the crashed process vs. this one.  This is an assumption made in
+  // "dyld_debug.c" and is said to be nearly always valid.
+  vector<uint8_t> dyld_all_info_bytes;
+  if (ReadTaskMemory(images.task_,
+                     image_list_address,
+                     sizeof(dyld_all_image_infos),
+                     dyld_all_info_bytes) != KERN_SUCCESS)
+    return;
+
+  dyld_all_image_infos *dyldInfo =
+    reinterpret_cast<dyld_all_image_infos*>(&dyld_all_info_bytes[0]);
+
+  // number of loaded images
+  int count = dyldInfo->infoArrayCount;
+
+  // Read an array of dyld_image_info structures each containing
+  // information about a loaded image.
+  vector<uint8_t> dyld_info_array_bytes;
+    if (ReadTaskMemory(images.task_,
+                       dyldInfo->infoArray,
+                       count * sizeof(dyld_image_info),
+                       dyld_info_array_bytes) != KERN_SUCCESS)
+      return;
+
+    dyld_image_info *infoArray =
+        reinterpret_cast<dyld_image_info*>(&dyld_info_array_bytes[0]);
+    images.image_list_.reserve(count);
+
+    for (int i = 0; i < count; ++i) {
+      dyld_image_info &info = infoArray[i];
+
+      // First read just the mach_header from the image in the task.
+      vector<uint8_t> mach_header_bytes;
+      if (ReadTaskMemory(images.task_,
+                         info.load_address_,
+                         sizeof(mach_header_type),
+                         mach_header_bytes) != KERN_SUCCESS)
+        continue;  // bail on this dynamic image
+
+      mach_header_type *header =
+          reinterpret_cast<mach_header_type*>(&mach_header_bytes[0]);
+
+      // Now determine the total amount necessary to read the header
+      // plus all of the load commands.
+      size_t header_size =
+          sizeof(mach_header_type) + header->sizeofcmds;
+
+      if (ReadTaskMemory(images.task_,
+                         info.load_address_,
+                         header_size,
+                         mach_header_bytes) != KERN_SUCCESS)
+        continue;
+
+      header = reinterpret_cast<mach_header_type*>(&mach_header_bytes[0]);
+
+      // Read the file name from the task's memory space.
+      string file_path;
+      if (info.file_path_) {
+        // Although we're reading kMaxStringLength bytes, it's copied in the
+        // the DynamicImage constructor below with the correct string length,
+        // so it's not really wasting memory.
+        file_path = ReadTaskString(images.task_, info.file_path_);
+      }
+
+      // Create an object representing this image and add it to our list.
+      DynamicImage *new_image;
+      new_image = new DynamicImage(&mach_header_bytes[0],
+                                   header_size,
+                                   info.load_address_,
+                                   file_path,
+                                   info.file_mod_date_,
+                                   images.task_,
+                                   images.cpu_type_);
+
+      if (new_image->IsValid()) {
+        images.image_list_.push_back(DynamicImageRef(new_image));
+      } else {
+        delete new_image;
+      }
+    }
+
+    // sorts based on loading address
+    sort(images.image_list_.begin(), images.image_list_.end());
+    // remove duplicates - this happens in certain strange cases
+    // You can see it in DashboardClient when Google Gadgets plugin
+    // is installed.  Apple's crash reporter log and gdb "info shared"
+    // both show the same library multiple times at the same address
+
+    vector<DynamicImageRef>::iterator it = unique(images.image_list_.begin(),
+                                                  images.image_list_.end());
+    images.image_list_.erase(it, images.image_list_.end());
+}
+
+void DynamicImages::ReadImageInfoForTask() {
+  uint64_t imageList = GetDyldAllImageInfosPointer();
+
+  if (imageList) {
+    if (Is64Bit())
+      ReadImageInfo<MachO64>(*this, imageList);
+    else
+      ReadImageInfo<MachO32>(*this, imageList);
+  }
+}
+
+//==============================================================================
+DynamicImage  *DynamicImages::GetExecutableImage() {
+  int executable_index = GetExecutableImageIndex();
+
+  if (executable_index >= 0) {
+    return GetImage(executable_index);
+  }
+
+  return NULL;
+}
+
+//==============================================================================
+// returns -1 if failure to find executable
+int DynamicImages::GetExecutableImageIndex() {
+  int image_count = GetImageCount();
+
+  for (int i = 0; i < image_count; ++i) {
+    DynamicImage  *image = GetImage(i);
+    if (image->GetFileType() == MH_EXECUTE) {
+      return i;
+    }
+  }
+
+  return -1;
+}
+
+//==============================================================================
+// static
+cpu_type_t DynamicImages::DetermineTaskCPUType(task_t task) {
+  if (task == mach_task_self())
+    return GetNativeCPUType();
+
+  int mib[CTL_MAXNAME];
+  size_t mibLen = CTL_MAXNAME;
+  int err = sysctlnametomib("sysctl.proc_cputype", mib, &mibLen);
+  if (err == 0) {
+    assert(mibLen < CTL_MAXNAME);
+    pid_for_task(task, &mib[mibLen]);
+    mibLen += 1;
+
+    cpu_type_t cpu_type;
+    size_t cpuTypeSize = sizeof(cpu_type);
+    sysctl(mib, mibLen, &cpu_type, &cpuTypeSize, 0, 0);
+    return cpu_type;
+  }
+
+  return GetNativeCPUType();
+}
+
+}  // namespace google_breakpad

thirdparty/breakpad/client/mac/handler/dynamic_images.h

@@ -0,0 +1,313 @@
+// Copyright (c) 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+//  dynamic_images.h
+//
+//    Implements most of the function of the dyld API, but allowing an
+//    arbitrary task to be introspected, unlike the dyld API which
+//    only allows operation on the current task.  The current implementation
+//    is limited to use by 32-bit tasks.
+
+#ifndef CLIENT_MAC_HANDLER_DYNAMIC_IMAGES_H__
+#define CLIENT_MAC_HANDLER_DYNAMIC_IMAGES_H__
+
+#include <mach/mach.h>
+#include <mach-o/dyld.h>
+#include <mach-o/loader.h>
+#include <sys/types.h>
+
+#include <string>
+#include <vector>
+
+namespace google_breakpad {
+
+using std::string;
+using std::vector;
+
+//==============================================================================
+// The memory layout of this struct matches the dyld_image_info struct
+// defined in "dyld_gdb.h" in the darwin source.
+typedef struct dyld_image_info32 {
+  uint32_t                   load_address_;  // struct mach_header*
+  uint32_t                   file_path_;     // char*
+  uint32_t                   file_mod_date_;
+} dyld_image_info32;
+
+typedef struct dyld_image_info64 {
+  uint64_t                   load_address_;  // struct mach_header*
+  uint64_t                   file_path_;     // char*
+  uint64_t                   file_mod_date_;
+} dyld_image_info64;
+
+//==============================================================================
+// This is as defined in "dyld_gdb.h" in the darwin source.
+// _dyld_all_image_infos (in dyld) is a structure of this type
+// which will be used to determine which dynamic code has been loaded.
+typedef struct dyld_all_image_infos32 {
+  uint32_t                      version;  // == 1 in Mac OS X 10.4
+  uint32_t                      infoArrayCount;
+  uint32_t                      infoArray;  // const struct dyld_image_info*
+  uint32_t                      notification;
+  bool                          processDetachedFromSharedRegion;
+} dyld_all_image_infos32;
+
+typedef struct dyld_all_image_infos64 {
+  uint32_t                      version;  // == 1 in Mac OS X 10.4
+  uint32_t                      infoArrayCount;
+  uint64_t                      infoArray;  // const struct dyld_image_info*
+  uint64_t                      notification;
+  bool                          processDetachedFromSharedRegion;
+} dyld_all_image_infos64;
+
+// some typedefs to isolate 64/32 bit differences
+#ifdef __LP64__
+typedef mach_header_64 breakpad_mach_header;
+typedef segment_command_64 breakpad_mach_segment_command;
+#else
+typedef mach_header breakpad_mach_header;
+typedef segment_command breakpad_mach_segment_command;
+#endif
+
+// Helper functions to deal with 32-bit/64-bit Mach-O differences.
+class DynamicImage;
+template<typename MachBits>
+bool FindTextSection(DynamicImage& image);
+
+template<typename MachBits>
+uint32_t GetFileTypeFromHeader(DynamicImage& image);
+
+//==============================================================================
+// Represents a single dynamically loaded mach-o image
+class DynamicImage {
+ public:
+  DynamicImage(uint8_t *header,     // data is copied
+               size_t header_size,  // includes load commands
+               uint64_t load_address,
+               string file_path,
+               uintptr_t image_mod_date,
+               mach_port_t task,
+               cpu_type_t cpu_type)
+    : header_(header, header + header_size),
+      header_size_(header_size),
+      load_address_(load_address),
+      vmaddr_(0),
+      vmsize_(0),
+      slide_(0),
+      version_(0),
+      file_path_(file_path),
+      file_mod_date_(image_mod_date),
+      task_(task),
+      cpu_type_(cpu_type) {
+    CalculateMemoryAndVersionInfo();
+  }
+
+  // Size of mach_header plus load commands
+  size_t GetHeaderSize() const {return header_.size();}
+
+  // Full path to mach-o binary
+  string GetFilePath() {return file_path_;}
+
+  uint64_t GetModDate() const {return file_mod_date_;}
+
+  // Actual address where the image was loaded
+  uint64_t GetLoadAddress() const {return load_address_;}
+
+  // Address where the image should be loaded
+  mach_vm_address_t GetVMAddr() const {return vmaddr_;}
+
+  // Difference between GetLoadAddress() and GetVMAddr()
+  ptrdiff_t GetVMAddrSlide() const {return slide_;}
+
+  // Size of the image
+  mach_vm_size_t GetVMSize() const {return vmsize_;}
+
+  // Task owning this loaded image
+  mach_port_t GetTask() {return task_;}
+
+  // CPU type of the task
+  cpu_type_t GetCPUType() {return cpu_type_;}
+
+  // filetype from the Mach-O header.
+  uint32_t GetFileType();
+
+  // Return true if the task is a 64-bit architecture.
+  bool Is64Bit() { return (GetCPUType() & CPU_ARCH_ABI64) == CPU_ARCH_ABI64; }
+
+  uint32_t GetVersion() {return version_;}
+  // For sorting
+  bool operator<(const DynamicImage &inInfo) {
+    return GetLoadAddress() < inInfo.GetLoadAddress();
+  }
+
+  // Sanity checking
+  bool IsValid() {return GetVMSize() != 0;}
+
+ private:
+  DynamicImage(const DynamicImage &);
+  DynamicImage &operator=(const DynamicImage &);
+
+  friend class DynamicImages;
+  template<typename MachBits>
+  friend bool FindTextSection(DynamicImage& image);
+  template<typename MachBits>
+  friend uint32_t GetFileTypeFromHeader(DynamicImage& image);
+
+  // Initializes vmaddr_, vmsize_, and slide_
+  void CalculateMemoryAndVersionInfo();
+
+  const vector<uint8_t>   header_;        // our local copy of the header
+  size_t                  header_size_;    // mach_header plus load commands
+  uint64_t                load_address_;   // base address image is mapped into
+  mach_vm_address_t       vmaddr_;
+  mach_vm_size_t          vmsize_;
+  ptrdiff_t               slide_;
+  uint32_t                version_;        // Dylib version
+  string                  file_path_;     // path dyld used to load the image
+  uintptr_t               file_mod_date_;  // time_t of image file
+
+  mach_port_t             task_;
+  cpu_type_t              cpu_type_;        // CPU type of task_
+};
+
+//==============================================================================
+// DynamicImageRef is just a simple wrapper for a pointer to
+// DynamicImage.  The reason we use it instead of a simple typedef is so
+// that we can use stl::sort() on a vector of DynamicImageRefs
+// and simple class pointers can't implement operator<().
+//
+class DynamicImageRef {
+ public:
+  explicit DynamicImageRef(DynamicImage *inP) : p(inP) {}
+  // The copy constructor is required by STL
+  DynamicImageRef(const DynamicImageRef &inRef) : p(inRef.p) {}
+
+  bool operator<(const DynamicImageRef &inRef) const {
+    return (*const_cast<DynamicImageRef*>(this)->p)
+      < (*const_cast<DynamicImageRef&>(inRef).p);
+  }
+
+  bool operator==(const DynamicImageRef &inInfo) const {
+    return (*const_cast<DynamicImageRef*>(this)->p).GetLoadAddress() ==
+        (*const_cast<DynamicImageRef&>(inInfo)).GetLoadAddress();
+  }
+
+  // Be just like DynamicImage*
+  DynamicImage  *operator->() {return p;}
+  operator DynamicImage*() {return p;}
+
+ private:
+  DynamicImage  *p;
+};
+
+// Helper function to deal with 32-bit/64-bit Mach-O differences.
+class DynamicImages;
+template<typename MachBits>
+void ReadImageInfo(DynamicImages& images, uint64_t image_list_address);
+
+//==============================================================================
+// An object of type DynamicImages may be created to allow introspection of
+// an arbitrary task's dynamically loaded mach-o binaries.  This makes the
+// assumption that the current task has send rights to the target task.
+class DynamicImages {
+ public:
+  explicit DynamicImages(mach_port_t task);
+
+  ~DynamicImages() {
+    for (int i = 0; i < GetImageCount(); ++i) {
+      delete image_list_[i];
+    }
+  }
+
+  // Returns the number of dynamically loaded mach-o images.
+  int GetImageCount() const {return static_cast<int>(image_list_.size());}
+
+  // Returns an individual image.
+  DynamicImage *GetImage(int i) {
+    if (i < (int)image_list_.size()) {
+      return image_list_[i];
+    }
+    return NULL;
+  }
+
+  // Returns the image corresponding to the main executable.
+  DynamicImage *GetExecutableImage();
+  int GetExecutableImageIndex();
+
+  // Returns the task which we're looking at.
+  mach_port_t GetTask() const {return task_;}
+
+  // CPU type of the task
+  cpu_type_t GetCPUType() {return cpu_type_;}
+
+  // Return true if the task is a 64-bit architecture.
+  bool Is64Bit() { return (GetCPUType() & CPU_ARCH_ABI64) == CPU_ARCH_ABI64; }
+
+  // Determine the CPU type of the task being dumped.
+  static cpu_type_t DetermineTaskCPUType(task_t task);
+
+  // Get the native CPU type of this task.
+  static cpu_type_t GetNativeCPUType() {
+#if defined(__i386__)
+    return CPU_TYPE_I386;
+#elif defined(__x86_64__)
+    return CPU_TYPE_X86_64;
+#elif defined(__ppc__)
+    return CPU_TYPE_POWERPC;
+#elif defined(__ppc64__)
+    return CPU_TYPE_POWERPC64;
+#else
+#error "GetNativeCPUType not implemented for this architecture"
+#endif
+  }
+
+ private:
+  template<typename MachBits>
+  friend void ReadImageInfo(DynamicImages& images, uint64_t image_list_address);
+
+  bool IsOurTask() {return task_ == mach_task_self();}
+
+  // Initialization
+  void ReadImageInfoForTask();
+  uint64_t GetDyldAllImageInfosPointer();
+
+  mach_port_t              task_;
+  cpu_type_t               cpu_type_;  // CPU type of task_
+  vector<DynamicImageRef>  image_list_;
+};
+
+// Fill bytes with the contents of memory at a particular
+// location in another task.
+kern_return_t ReadTaskMemory(task_port_t target_task,
+                             const uint64_t address,
+                             size_t length,
+                             vector<uint8_t> &bytes);
+
+}   // namespace google_breakpad
+
+#endif // CLIENT_MAC_HANDLER_DYNAMIC_IMAGES_H__

thirdparty/breakpad/client/mac/handler/exception_handler.cc

@@ -0,0 +1,821 @@
+// Copyright (c) 2006, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include <map>
+#include <pthread.h>
+
+#include "client/mac/handler/exception_handler.h"
+#include "client/mac/handler/minidump_generator.h"
+#include "common/mac/macho_utilities.h"
+#include "common/mac/scoped_task_suspend-inl.h"
+
+#ifndef USE_PROTECTED_ALLOCATIONS
+#define USE_PROTECTED_ALLOCATIONS 0
+#endif
+
+// If USE_PROTECTED_ALLOCATIONS is activated then the
+// gBreakpadAllocator needs to be setup in other code
+// ahead of time.  Please see ProtectedMemoryAllocator.h
+// for more details.
+#if USE_PROTECTED_ALLOCATIONS
+  #include "protected_memory_allocator.h"
+  extern ProtectedMemoryAllocator *gBreakpadAllocator;
+#endif
+
+
+namespace google_breakpad {
+
+using std::map;
+
+// These structures and techniques are illustrated in
+// Mac OS X Internals, Amit Singh, ch 9.7
+struct ExceptionMessage {
+  mach_msg_header_t           header;
+  mach_msg_body_t             body;
+  mach_msg_port_descriptor_t  thread;
+  mach_msg_port_descriptor_t  task;
+  NDR_record_t                ndr;
+  exception_type_t            exception;
+  mach_msg_type_number_t      code_count;
+  integer_t                   code[EXCEPTION_CODE_MAX];
+  char                        padding[512];
+};
+
+struct ExceptionParameters {
+  ExceptionParameters() : count(0) {}
+  mach_msg_type_number_t count;
+  exception_mask_t masks[EXC_TYPES_COUNT];
+  mach_port_t ports[EXC_TYPES_COUNT];
+  exception_behavior_t behaviors[EXC_TYPES_COUNT];
+  thread_state_flavor_t flavors[EXC_TYPES_COUNT];
+};
+
+struct ExceptionReplyMessage {
+  mach_msg_header_t  header;
+  NDR_record_t       ndr;
+  kern_return_t      return_code;
+};
+
+// Only catch these three exceptions.  The other ones are nebulously defined
+// and may result in treating a non-fatal exception as fatal.
+exception_mask_t s_exception_mask = EXC_MASK_BAD_ACCESS |
+EXC_MASK_BAD_INSTRUCTION | EXC_MASK_ARITHMETIC | EXC_MASK_BREAKPOINT;
+
+extern "C"
+{
+  // Forward declarations for functions that need "C" style compilation
+  boolean_t exc_server(mach_msg_header_t *request,
+                       mach_msg_header_t *reply);
+
+  // This symbol must be visible to dlsym() - see
+  // http://code.google.com/p/google-breakpad/issues/detail?id=345 for details.
+  kern_return_t catch_exception_raise(mach_port_t target_port,
+                                      mach_port_t failed_thread,
+                                      mach_port_t task,
+                                      exception_type_t exception,
+                                      exception_data_t code,
+                                      mach_msg_type_number_t code_count)
+      __attribute__((visibility("default")));
+
+  kern_return_t ForwardException(mach_port_t task,
+                                 mach_port_t failed_thread,
+                                 exception_type_t exception,
+                                 exception_data_t code,
+                                 mach_msg_type_number_t code_count);
+
+  kern_return_t exception_raise(mach_port_t target_port,
+                                mach_port_t failed_thread,
+                                mach_port_t task,
+                                exception_type_t exception,
+                                exception_data_t exception_code,
+                                mach_msg_type_number_t exception_code_count);
+
+  kern_return_t
+    exception_raise_state(mach_port_t target_port,
+                          mach_port_t failed_thread,
+                          mach_port_t task,
+                          exception_type_t exception,
+                          exception_data_t exception_code,
+                          mach_msg_type_number_t code_count,
+                          thread_state_flavor_t *target_flavor,
+                          thread_state_t in_thread_state,
+                          mach_msg_type_number_t in_thread_state_count,
+                          thread_state_t out_thread_state,
+                          mach_msg_type_number_t *out_thread_state_count);
+
+  kern_return_t
+    exception_raise_state_identity(mach_port_t target_port,
+                                   mach_port_t failed_thread,
+                                   mach_port_t task,
+                                   exception_type_t exception,
+                                   exception_data_t exception_code,
+                                   mach_msg_type_number_t exception_code_count,
+                                   thread_state_flavor_t *target_flavor,
+                                   thread_state_t in_thread_state,
+                                   mach_msg_type_number_t in_thread_state_count,
+                                   thread_state_t out_thread_state,
+                                   mach_msg_type_number_t *out_thread_state_count);
+
+  kern_return_t breakpad_exception_raise_state(mach_port_t exception_port,
+                                               exception_type_t exception,
+                                               const exception_data_t code,
+                                               mach_msg_type_number_t codeCnt,
+                                               int *flavor,
+                                               const thread_state_t old_state,
+                                               mach_msg_type_number_t old_stateCnt,
+                                               thread_state_t new_state,
+                                               mach_msg_type_number_t *new_stateCnt
+                                               );
+
+  kern_return_t breakpad_exception_raise_state_identity(mach_port_t exception_port,
+                                                        mach_port_t thread,
+                                                        mach_port_t task,
+                                                        exception_type_t exception,
+                                                        exception_data_t code,
+                                                        mach_msg_type_number_t codeCnt,
+                                                        int *flavor,
+                                                        thread_state_t old_state,
+                                                        mach_msg_type_number_t old_stateCnt,
+                                                        thread_state_t new_state,
+                                                        mach_msg_type_number_t *new_stateCnt
+                                                        );
+
+  kern_return_t breakpad_exception_raise(mach_port_t port, mach_port_t failed_thread,
+                                         mach_port_t task,
+                                         exception_type_t exception,
+                                         exception_data_t code,
+                                         mach_msg_type_number_t code_count);
+}
+
+
+
+kern_return_t breakpad_exception_raise_state(mach_port_t exception_port,
+					     exception_type_t exception,
+					     const exception_data_t code,
+					     mach_msg_type_number_t codeCnt,
+					     int *flavor,
+					     const thread_state_t old_state,
+					     mach_msg_type_number_t old_stateCnt,
+					     thread_state_t new_state,
+					     mach_msg_type_number_t *new_stateCnt
+                                             )
+{
+  return KERN_SUCCESS;
+}
+
+kern_return_t breakpad_exception_raise_state_identity(mach_port_t exception_port,
+						      mach_port_t thread,
+						      mach_port_t task,
+						      exception_type_t exception,
+						      exception_data_t code,
+						      mach_msg_type_number_t codeCnt,
+						      int *flavor,
+						      thread_state_t old_state,
+						      mach_msg_type_number_t old_stateCnt,
+						      thread_state_t new_state,
+						      mach_msg_type_number_t *new_stateCnt
+                                                      )
+{
+  return KERN_SUCCESS;
+}
+
+kern_return_t breakpad_exception_raise(mach_port_t port, mach_port_t failed_thread,
+                                       mach_port_t task,
+                                       exception_type_t exception,
+                                       exception_data_t code,
+                                       mach_msg_type_number_t code_count) {
+
+  if (task != mach_task_self()) {
+    return KERN_FAILURE;
+  }
+  return ForwardException(task, failed_thread, exception, code, code_count);
+}
+
+
+ExceptionHandler::ExceptionHandler(const string &dump_path,
+                                   FilterCallback filter,
+                                   MinidumpCallback callback,
+                                   void *callback_context,
+                                   bool install_handler,
+				   const char *port_name)
+    : dump_path_(),
+      filter_(filter),
+      callback_(callback),
+      callback_context_(callback_context),
+      directCallback_(NULL),
+      handler_thread_(NULL),
+      handler_port_(MACH_PORT_NULL),
+      previous_(NULL),
+      installed_exception_handler_(false),
+      is_in_teardown_(false),
+      last_minidump_write_result_(false),
+      use_minidump_write_mutex_(false) {
+  // This will update to the ID and C-string pointers
+  set_dump_path(dump_path);
+  MinidumpGenerator::GatherSystemInformation();
+  if (port_name)
+    crash_generation_client_.reset(new CrashGenerationClient(port_name));
+  Setup(install_handler);
+}
+
+// special constructor if we want to bypass minidump writing and
+// simply get a callback with the exception information
+ExceptionHandler::ExceptionHandler(DirectCallback callback,
+                                   void *callback_context,
+                                   bool install_handler)
+    : dump_path_(),
+      filter_(NULL),
+      callback_(NULL),
+      callback_context_(callback_context),
+      directCallback_(callback),
+      handler_thread_(NULL),
+      handler_port_(MACH_PORT_NULL),
+      previous_(NULL),
+      installed_exception_handler_(false),
+      is_in_teardown_(false),
+      last_minidump_write_result_(false),
+      use_minidump_write_mutex_(false) {
+  MinidumpGenerator::GatherSystemInformation();
+  Setup(install_handler);
+}
+
+ExceptionHandler::~ExceptionHandler() {
+  Teardown();
+}
+
+bool ExceptionHandler::WriteMinidump(bool write_exception_stream) {
+  // If we're currently writing, just return
+  if (use_minidump_write_mutex_)
+    return false;
+
+  use_minidump_write_mutex_ = true;
+  last_minidump_write_result_ = false;
+
+  // Lock the mutex.  Since we just created it, this will return immediately.
+  if (pthread_mutex_lock(&minidump_write_mutex_) == 0) {
+    // Send an empty message to the handle port so that a minidump will
+    // be written
+    SendMessageToHandlerThread(write_exception_stream ?
+                                   kWriteDumpWithExceptionMessage :
+                                   kWriteDumpMessage);
+
+    // Wait for the minidump writer to complete its writing.  It will unlock
+    // the mutex when completed
+    pthread_mutex_lock(&minidump_write_mutex_);
+  }
+
+  use_minidump_write_mutex_ = false;
+  UpdateNextID();
+  return last_minidump_write_result_;
+}
+
+// static
+bool ExceptionHandler::WriteMinidump(const string &dump_path,
+                                     bool write_exception_stream,
+                                     MinidumpCallback callback,
+                                     void *callback_context) {
+  ExceptionHandler handler(dump_path, NULL, callback, callback_context, false,
+			   NULL);
+  return handler.WriteMinidump(write_exception_stream);
+}
+
+// static
+bool ExceptionHandler::WriteMinidumpForChild(mach_port_t child,
+					     mach_port_t child_blamed_thread,
+					     const string &dump_path,
+					     MinidumpCallback callback,
+					     void *callback_context) {
+  ScopedTaskSuspend suspend(child);
+
+  MinidumpGenerator generator(child, MACH_PORT_NULL);
+  string dump_id;
+  string dump_filename = generator.UniqueNameInDirectory(dump_path, &dump_id);
+
+  generator.SetExceptionInformation(EXC_BREAKPOINT,
+#if defined (__i386__) || defined(__x86_64__)
+				    EXC_I386_BPT,
+#elif defined (__ppc__) || defined (__ppc64__)
+				    EXC_PPC_BREAKPOINT,
+#else
+#error architecture not supported
+#endif
+				    0,
+				    child_blamed_thread);
+  bool result = generator.Write(dump_filename.c_str());
+
+  if (callback) {
+    return callback(dump_path.c_str(), dump_id.c_str(),
+		    callback_context, result);
+  }
+  return result;
+}
+
+bool ExceptionHandler::WriteMinidumpWithException(int exception_type,
+                                                  int exception_code,
+                                                  int exception_subcode,
+                                                  mach_port_t thread_name,
+                                                  bool exit_after_write) {
+  bool result = false;
+
+  if (directCallback_) {
+    if (directCallback_(callback_context_,
+                        exception_type,
+                        exception_code,
+                        exception_subcode,
+                        thread_name) ) {
+      if (exit_after_write)
+        _exit(exception_type);
+    }
+  } else if (IsOutOfProcess()) {
+    if (exception_type && exception_code) {
+      // If this is a real exception, give the filter (if any) a chance to
+      // decide if this should be sent.
+      if (filter_ && !filter_(callback_context_))
+	return false;
+      return crash_generation_client_->RequestDumpForException(
+	         exception_type,
+		 exception_code,
+		 exception_subcode,
+		 thread_name);
+    }
+  } else {
+    string minidump_id;
+
+    // Putting the MinidumpGenerator in its own context will ensure that the
+    // destructor is executed, closing the newly created minidump file.
+    if (!dump_path_.empty()) {
+      MinidumpGenerator md;
+      if (exception_type && exception_code) {
+        // If this is a real exception, give the filter (if any) a chance to
+        // decide if this should be sent.
+        if (filter_ && !filter_(callback_context_))
+          return false;
+
+        md.SetExceptionInformation(exception_type, exception_code,
+                                   exception_subcode, thread_name);
+      }
+
+      result = md.Write(next_minidump_path_c_);
+    }
+
+    // Call user specified callback (if any)
+    if (callback_) {
+      // If the user callback returned true and we're handling an exception
+      // (rather than just writing out the file), then we should exit without
+      // forwarding the exception to the next handler.
+      if (callback_(dump_path_c_, next_minidump_id_c_, callback_context_,
+                    result)) {
+        if (exit_after_write)
+          _exit(exception_type);
+      }
+    }
+  }
+
+  return result;
+}
+
+kern_return_t ForwardException(mach_port_t task, mach_port_t failed_thread,
+                               exception_type_t exception,
+                               exception_data_t code,
+                               mach_msg_type_number_t code_count) {
+  // At this time, we should have called Uninstall() on the exception handler
+  // so that the current exception ports are the ones that we should be
+  // forwarding to.
+  ExceptionParameters current;
+
+  current.count = EXC_TYPES_COUNT;
+  mach_port_t current_task = mach_task_self();
+  kern_return_t result = task_get_exception_ports(current_task,
+                                                  s_exception_mask,
+                                                  current.masks,
+                                                  &current.count,
+                                                  current.ports,
+                                                  current.behaviors,
+                                                  current.flavors);
+
+  // Find the first exception handler that matches the exception
+  unsigned int found;
+  for (found = 0; found < current.count; ++found) {
+    if (current.masks[found] & (1 << exception)) {
+      break;
+    }
+  }
+
+  // Nothing to forward
+  if (found == current.count) {
+    fprintf(stderr, "** No previous ports for forwarding!! \n");
+    exit(KERN_FAILURE);
+  }
+
+  mach_port_t target_port = current.ports[found];
+  exception_behavior_t target_behavior = current.behaviors[found];
+  thread_state_flavor_t target_flavor = current.flavors[found];
+
+  mach_msg_type_number_t thread_state_count = THREAD_STATE_MAX;
+  breakpad_thread_state_data_t thread_state;
+  switch (target_behavior) {
+    case EXCEPTION_DEFAULT:
+      result = exception_raise(target_port, failed_thread, task, exception,
+                               code, code_count);
+      break;
+
+    case EXCEPTION_STATE:
+      result = thread_get_state(failed_thread, target_flavor, thread_state,
+                                &thread_state_count);
+      if (result == KERN_SUCCESS)
+        result = exception_raise_state(target_port, failed_thread, task,
+                                       exception, code,
+                                       code_count, &target_flavor,
+                                       thread_state, thread_state_count,
+                                       thread_state, &thread_state_count);
+      if (result == KERN_SUCCESS)
+        result = thread_set_state(failed_thread, target_flavor, thread_state,
+                                  thread_state_count);
+      break;
+
+    case EXCEPTION_STATE_IDENTITY:
+      result = thread_get_state(failed_thread, target_flavor, thread_state,
+                                &thread_state_count);
+      if (result == KERN_SUCCESS)
+        result = exception_raise_state_identity(target_port, failed_thread,
+                                                task, exception, code,
+                                                code_count, &target_flavor,
+                                                thread_state,
+                                                thread_state_count,
+                                                thread_state,
+                                                &thread_state_count);
+      if (result == KERN_SUCCESS)
+        result = thread_set_state(failed_thread, target_flavor, thread_state,
+                                  thread_state_count);
+      break;
+
+    default:
+      fprintf(stderr, "** Unknown exception behavior\n");
+      result = KERN_FAILURE;
+      break;
+  }
+
+  return result;
+}
+
+// Callback from exc_server()
+kern_return_t catch_exception_raise(mach_port_t port, mach_port_t failed_thread,
+                                    mach_port_t task,
+                                    exception_type_t exception,
+                                    exception_data_t code,
+                                    mach_msg_type_number_t code_count) {
+  if (task != mach_task_self()) {
+    return KERN_FAILURE;
+  }
+  return ForwardException(task, failed_thread, exception, code, code_count);
+}
+
+// static
+void *ExceptionHandler::WaitForMessage(void *exception_handler_class) {
+  ExceptionHandler *self =
+    reinterpret_cast<ExceptionHandler *>(exception_handler_class);
+  ExceptionMessage receive;
+
+  // Wait for the exception info
+  while (1) {
+    receive.header.msgh_local_port = self->handler_port_;
+    receive.header.msgh_size = static_cast<mach_msg_size_t>(sizeof(receive));
+    kern_return_t result = mach_msg(&(receive.header),
+                                    MACH_RCV_MSG | MACH_RCV_LARGE, 0,
+                                    receive.header.msgh_size,
+                                    self->handler_port_,
+                                    MACH_MSG_TIMEOUT_NONE, MACH_PORT_NULL);
+
+
+    if (result == KERN_SUCCESS) {
+      // Uninstall our handler so that we don't get in a loop if the process of
+      // writing out a minidump causes an exception.  However, if the exception
+      // was caused by a fork'd process, don't uninstall things
+
+      // If the actual exception code is zero, then we're calling this handler
+      // in a way that indicates that we want to either exit this thread or
+      // generate a minidump
+      //
+      // While reporting, all threads (except this one) must be suspended
+      // to avoid misleading stacks.  If appropriate they will be resumed
+      // afterwards.
+      if (!receive.exception) {
+        // Don't touch self, since this message could have been sent
+        // from its destructor.
+        if (receive.header.msgh_id == kShutdownMessage)
+          return NULL;
+
+        self->SuspendThreads();
+
+#if USE_PROTECTED_ALLOCATIONS
+        if(gBreakpadAllocator)
+          gBreakpadAllocator->Unprotect();
+#endif
+
+        mach_port_t thread = MACH_PORT_NULL;
+        int exception_type = 0;
+        int exception_code = 0;
+        if (receive.header.msgh_id == kWriteDumpWithExceptionMessage) {
+          thread = receive.thread.name;
+          exception_type = EXC_BREAKPOINT;
+#if defined (__i386__) || defined(__x86_64__)
+          exception_code = EXC_I386_BPT;
+#elif defined (__ppc__) || defined (__ppc64__)
+          exception_code = EXC_PPC_BREAKPOINT;
+#else
+#error architecture not supported
+#endif
+        }
+
+        // Write out the dump and save the result for later retrieval
+        self->last_minidump_write_result_ =
+          self->WriteMinidumpWithException(exception_type, exception_code,
+                                           0, thread,
+                                           false);
+
+#if USE_PROTECTED_ALLOCATIONS
+        if(gBreakpadAllocator)
+          gBreakpadAllocator->Protect();
+#endif
+
+        self->ResumeThreads();
+
+        if (self->use_minidump_write_mutex_)
+          pthread_mutex_unlock(&self->minidump_write_mutex_);
+      } else {
+        // When forking a child process with the exception handler installed,
+        // if the child crashes, it will send the exception back to the parent
+        // process.  The check for task == self_task() ensures that only
+        // exceptions that occur in the parent process are caught and
+        // processed.  If the exception was not caused by this task, we
+        // still need to call into the exception server and have it return
+        // KERN_FAILURE (see breakpad_exception_raise) in order for the kernel
+        // to move onto the host exception handler for the child task
+        if (receive.task.name == mach_task_self()) {
+          self->SuspendThreads();
+
+#if USE_PROTECTED_ALLOCATIONS
+        if(gBreakpadAllocator)
+          gBreakpadAllocator->Unprotect();
+#endif
+
+        int subcode = 0;
+        if (receive.exception == EXC_BAD_ACCESS && receive.code_count > 1)
+          subcode = receive.code[1];
+
+        // Generate the minidump with the exception data.
+        self->WriteMinidumpWithException(receive.exception, receive.code[0],
+                                         subcode, receive.thread.name, true);
+
+#if USE_PROTECTED_ALLOCATIONS
+        // This may have become protected again within
+        // WriteMinidumpWithException, but it needs to be unprotected for
+        // UninstallHandler.
+        if(gBreakpadAllocator)
+          gBreakpadAllocator->Unprotect();
+#endif
+
+        self->UninstallHandler(true);
+
+#if USE_PROTECTED_ALLOCATIONS
+        if(gBreakpadAllocator)
+          gBreakpadAllocator->Protect();
+#endif
+        }
+        // Pass along the exception to the server, which will setup the
+        // message and call breakpad_exception_raise() and put the return
+        // code into the reply.
+        ExceptionReplyMessage reply;
+        if (!exc_server(&receive.header, &reply.header))
+          exit(1);
+
+        // Send a reply and exit
+        result = mach_msg(&(reply.header), MACH_SEND_MSG,
+                          reply.header.msgh_size, 0, MACH_PORT_NULL,
+                          MACH_MSG_TIMEOUT_NONE, MACH_PORT_NULL);
+      }
+    }
+  }
+
+  return NULL;
+}
+
+bool ExceptionHandler::InstallHandler() {
+  try {
+#if USE_PROTECTED_ALLOCATIONS
+    previous_ = new (gBreakpadAllocator->Allocate(sizeof(ExceptionParameters)) )
+      ExceptionParameters();
+#else
+    previous_ = new ExceptionParameters();
+#endif
+
+  }
+  catch (std::bad_alloc) {
+    return false;
+  }
+
+  // Save the current exception ports so that we can forward to them
+  previous_->count = EXC_TYPES_COUNT;
+  mach_port_t current_task = mach_task_self();
+  kern_return_t result = task_get_exception_ports(current_task,
+                                                  s_exception_mask,
+                                                  previous_->masks,
+                                                  &previous_->count,
+                                                  previous_->ports,
+                                                  previous_->behaviors,
+                                                  previous_->flavors);
+
+  // Setup the exception ports on this task
+  if (result == KERN_SUCCESS)
+    result = task_set_exception_ports(current_task, s_exception_mask,
+                                      handler_port_, EXCEPTION_DEFAULT,
+                                      THREAD_STATE_NONE);
+
+  installed_exception_handler_ = (result == KERN_SUCCESS);
+
+  return installed_exception_handler_;
+}
+
+bool ExceptionHandler::UninstallHandler(bool in_exception) {
+  kern_return_t result = KERN_SUCCESS;
+
+  if (installed_exception_handler_) {
+    mach_port_t current_task = mach_task_self();
+
+    // Restore the previous ports
+    for (unsigned int i = 0; i < previous_->count; ++i) {
+       result = task_set_exception_ports(current_task, previous_->masks[i],
+                                        previous_->ports[i],
+                                        previous_->behaviors[i],
+                                        previous_->flavors[i]);
+      if (result != KERN_SUCCESS)
+        return false;
+    }
+
+    // this delete should NOT happen if an exception just occurred!
+    if (!in_exception) {
+#if USE_PROTECTED_ALLOCATIONS
+      previous_->~ExceptionParameters();
+#else
+      delete previous_;
+#endif
+    }
+
+    previous_ = NULL;
+    installed_exception_handler_ = false;
+  }
+
+  return result == KERN_SUCCESS;
+}
+
+bool ExceptionHandler::Setup(bool install_handler) {
+  if (pthread_mutex_init(&minidump_write_mutex_, NULL))
+    return false;
+
+  // Create a receive right
+  mach_port_t current_task = mach_task_self();
+  kern_return_t result = mach_port_allocate(current_task,
+                                            MACH_PORT_RIGHT_RECEIVE,
+                                            &handler_port_);
+  // Add send right
+  if (result == KERN_SUCCESS)
+    result = mach_port_insert_right(current_task, handler_port_, handler_port_,
+                                    MACH_MSG_TYPE_MAKE_SEND);
+
+  if (install_handler && result == KERN_SUCCESS)
+    if (!InstallHandler())
+      return false;
+
+  if (result == KERN_SUCCESS) {
+    // Install the handler in its own thread, detached as we won't be joining.
+    pthread_attr_t attr;
+    pthread_attr_init(&attr);
+    pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
+    int thread_create_result = pthread_create(&handler_thread_, &attr,
+                                              &WaitForMessage, this);
+    pthread_attr_destroy(&attr);
+    result = thread_create_result ? KERN_FAILURE : KERN_SUCCESS;
+  }
+
+  return result == KERN_SUCCESS ? true : false;
+}
+
+bool ExceptionHandler::Teardown() {
+  kern_return_t result = KERN_SUCCESS;
+  is_in_teardown_ = true;
+
+  if (!UninstallHandler(false))
+    return false;
+
+  // Send an empty message so that the handler_thread exits
+  if (SendMessageToHandlerThread(kShutdownMessage)) {
+    mach_port_t current_task = mach_task_self();
+    result = mach_port_deallocate(current_task, handler_port_);
+    if (result != KERN_SUCCESS)
+      return false;
+  } else {
+    return false;
+  }
+
+  handler_thread_ = NULL;
+  handler_port_ = NULL;
+  pthread_mutex_destroy(&minidump_write_mutex_);
+
+  return result == KERN_SUCCESS;
+}
+
+bool ExceptionHandler::SendMessageToHandlerThread(
+    HandlerThreadMessage message_id) {
+  ExceptionMessage msg;
+  memset(&msg, 0, sizeof(msg));
+  msg.header.msgh_id = message_id;
+  if (message_id == kWriteDumpMessage ||
+      message_id == kWriteDumpWithExceptionMessage) {
+    // Include this thread's port.
+    msg.thread.name = mach_thread_self();
+    msg.thread.disposition = MACH_MSG_TYPE_PORT_SEND;
+    msg.thread.type = MACH_MSG_PORT_DESCRIPTOR;
+  }
+  msg.header.msgh_size = sizeof(msg) - sizeof(msg.padding);
+  msg.header.msgh_remote_port = handler_port_;
+  msg.header.msgh_bits = MACH_MSGH_BITS(MACH_MSG_TYPE_COPY_SEND,
+                                          MACH_MSG_TYPE_MAKE_SEND_ONCE);
+  kern_return_t result = mach_msg(&(msg.header),
+                                  MACH_SEND_MSG | MACH_SEND_TIMEOUT,
+                                  msg.header.msgh_size, 0, 0,
+                                  MACH_MSG_TIMEOUT_NONE, MACH_PORT_NULL);
+
+  return result == KERN_SUCCESS;
+}
+
+void ExceptionHandler::UpdateNextID() {
+  next_minidump_path_ =
+    (MinidumpGenerator::UniqueNameInDirectory(dump_path_, &next_minidump_id_));
+
+  next_minidump_path_c_ = next_minidump_path_.c_str();
+  next_minidump_id_c_ = next_minidump_id_.c_str();
+}
+
+bool ExceptionHandler::SuspendThreads() {
+  thread_act_port_array_t   threads_for_task;
+  mach_msg_type_number_t    thread_count;
+
+  if (task_threads(mach_task_self(), &threads_for_task, &thread_count))
+    return false;
+
+  // suspend all of the threads except for this one
+  for (unsigned int i = 0; i < thread_count; ++i) {
+    if (threads_for_task[i] != mach_thread_self()) {
+      if (thread_suspend(threads_for_task[i]))
+        return false;
+    }
+  }
+
+  return true;
+}
+
+bool ExceptionHandler::ResumeThreads() {
+  thread_act_port_array_t   threads_for_task;
+  mach_msg_type_number_t    thread_count;
+
+  if (task_threads(mach_task_self(), &threads_for_task, &thread_count))
+    return false;
+
+  // resume all of the threads except for this one
+  for (unsigned int i = 0; i < thread_count; ++i) {
+    if (threads_for_task[i] != mach_thread_self()) {
+      if (thread_resume(threads_for_task[i]))
+        return false;
+    }
+  }
+
+  return true;
+}
+
+}  // namespace google_breakpad

thirdparty/breakpad/client/mac/handler/exception_handler.h

@@ -0,0 +1,259 @@
+// Copyright (c) 2006, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// exception_handler.h:  MacOS exception handler
+// This class can install a Mach exception port handler to trap most common
+// programming errors.  If an exception occurs, a minidump file will be
+// generated which contains detailed information about the process and the
+// exception.
+
+#ifndef CLIENT_MAC_HANDLER_EXCEPTION_HANDLER_H__
+#define CLIENT_MAC_HANDLER_EXCEPTION_HANDLER_H__
+
+#include <mach/mach.h>
+
+#include <string>
+
+#include "client/mac/crash_generation/crash_generation_client.h"
+#include "processor/scoped_ptr.h"
+
+namespace google_breakpad {
+
+using std::string;
+
+struct ExceptionParameters;
+
+enum HandlerThreadMessage {
+  // Message ID telling the handler thread to write a dump.
+  kWriteDumpMessage = 0,
+  // Message ID telling the handler thread to write a dump and include
+  // an exception stream.
+  kWriteDumpWithExceptionMessage = 1,
+  // Message ID telling the handler thread to quit.
+  kShutdownMessage = 2
+};
+
+class ExceptionHandler {
+ public:
+  // A callback function to run before Breakpad performs any substantial
+  // processing of an exception.  A FilterCallback is called before writing
+  // a minidump.  context is the parameter supplied by the user as
+  // callback_context when the handler was created.
+  //
+  // If a FilterCallback returns true, Breakpad will continue processing,
+  // attempting to write a minidump.  If a FilterCallback returns false, Breakpad
+  // will immediately report the exception as unhandled without writing a
+  // minidump, allowing another handler the opportunity to handle it.
+  typedef bool (*FilterCallback)(void *context);
+
+  // A callback function to run after the minidump has been written.
+  // |minidump_id| is a unique id for the dump, so the minidump
+  // file is <dump_dir>/<minidump_id>.dmp.
+  // |context| is the value passed into the constructor.
+  // |succeeded| indicates whether a minidump file was successfully written.
+  // Return true if the exception was fully handled and breakpad should exit.
+  // Return false to allow any other exception handlers to process the
+  // exception.
+  typedef bool (*MinidumpCallback)(const char *dump_dir,
+                                   const char *minidump_id,
+                                   void *context, bool succeeded);
+
+  // A callback function which will be called directly if an exception occurs.
+  // This bypasses the minidump file writing and simply gives the client
+  // the exception information.
+  typedef bool (*DirectCallback)( void *context,
+                                  int exception_type,
+                                  int exception_code,
+                                  int exception_subcode,
+                                  mach_port_t thread_name);
+
+  // Creates a new ExceptionHandler instance to handle writing minidumps.
+  // Minidump files will be written to dump_path, and the optional callback
+  // is called after writing the dump file, as described above.
+  // If install_handler is true, then a minidump will be written whenever
+  // an unhandled exception occurs.  If it is false, minidumps will only
+  // be written when WriteMinidump is called.
+  // If port_name is non-NULL, attempt to perform out-of-process dump generation
+  // If port_name is NULL, in-process dump generation will be used.
+  ExceptionHandler(const string &dump_path,
+                   FilterCallback filter, MinidumpCallback callback,
+                   void *callback_context, bool install_handler,
+		   const char *port_name);
+
+  // A special constructor if we want to bypass minidump writing and
+  // simply get a callback with the exception information.
+  ExceptionHandler(DirectCallback callback,
+                   void *callback_context,
+                   bool install_handler);
+
+  ~ExceptionHandler();
+
+  // Get and set the minidump path.
+  string dump_path() const { return dump_path_; }
+  void set_dump_path(const string &dump_path) {
+    dump_path_ = dump_path;
+    dump_path_c_ = dump_path_.c_str();
+    UpdateNextID();  // Necessary to put dump_path_ in next_minidump_path_.
+  }
+
+  // Writes a minidump immediately.  This can be used to capture the
+  // execution state independently of a crash.  Returns true on success.
+  bool WriteMinidump() {
+    return WriteMinidump(false);
+  }
+
+  bool WriteMinidump(bool write_exception_stream);
+
+  // Convenience form of WriteMinidump which does not require an
+  // ExceptionHandler instance.
+  static bool WriteMinidump(const string &dump_path, MinidumpCallback callback,
+                            void *callback_context) {
+    return WriteMinidump(dump_path, false, callback, callback_context);
+  }
+
+  static bool WriteMinidump(const string &dump_path,
+                            bool write_exception_stream,
+                            MinidumpCallback callback,
+                            void *callback_context);
+
+  // Write a minidump of child immediately. This can be used to capture
+  // the execution state of a child process independently of a crash.
+  static bool WriteMinidumpForChild(mach_port_t child,
+				    mach_port_t child_blamed_thread,
+				    const std::string &dump_path,
+				    MinidumpCallback callback,
+				    void *callback_context);
+
+  // Returns whether out-of-process dump generation is used or not.
+  bool IsOutOfProcess() const {
+    return crash_generation_client_.get() != NULL;
+  }
+
+ private:
+  // Install the mach exception handler
+  bool InstallHandler();
+
+  // Uninstall the mach exception handler (if any)
+  bool UninstallHandler(bool in_exception);
+
+  // Setup the handler thread, and if |install_handler| is true, install the
+  // mach exception port handler
+  bool Setup(bool install_handler);
+
+  // Uninstall the mach exception handler (if any) and terminate the helper
+  // thread
+  bool Teardown();
+
+  // Send a mach message to the exception handler.  Return true on
+  // success, false otherwise.
+  bool SendMessageToHandlerThread(HandlerThreadMessage message_id);
+
+  // All minidump writing goes through this one routine
+  bool WriteMinidumpWithException(int exception_type,
+                                  int exception_code,
+                                  int exception_subcode,
+                                  mach_port_t thread_name,
+                                  bool exit_after_write);
+
+  // When installed, this static function will be call from a newly created
+  // pthread with |this| as the argument
+  static void *WaitForMessage(void *exception_handler_class);
+
+  // disallow copy ctor and operator=
+  explicit ExceptionHandler(const ExceptionHandler &);
+  void operator=(const ExceptionHandler &);
+
+  // Generates a new ID and stores it in next_minidump_id_, and stores the
+  // path of the next minidump to be written in next_minidump_path_.
+  void UpdateNextID();
+
+  // These functions will suspend/resume all threads except for the
+  // reporting thread
+  bool SuspendThreads();
+  bool ResumeThreads();
+
+  // The destination directory for the minidump
+  string dump_path_;
+
+  // The basename of the next minidump w/o extension
+  string next_minidump_id_;
+
+  // The full path to the next minidump to be written, including extension
+  string next_minidump_path_;
+
+  // Pointers to the UTF-8 versions of above
+  const char *dump_path_c_;
+  const char *next_minidump_id_c_;
+  const char *next_minidump_path_c_;
+
+  // The callback function and pointer to be passed back after the minidump
+  // has been written
+  FilterCallback filter_;
+  MinidumpCallback callback_;
+  void *callback_context_;
+
+  // The callback function to be passed back when we don't want a minidump
+  // file to be written
+  DirectCallback directCallback_;
+
+  // The thread that is created for the handler
+  pthread_t handler_thread_;
+
+  // The port that is waiting on an exception message to be sent, if the
+  // handler is installed
+  mach_port_t handler_port_;
+
+  // These variables save the previous exception handler's data so that it
+  // can be re-installed when this handler is uninstalled
+  ExceptionParameters *previous_;
+
+  // True, if we've installed the exception handler
+  bool installed_exception_handler_;
+
+  // True, if we're in the process of uninstalling the exception handler and
+  // the thread.
+  bool is_in_teardown_;
+
+  // Save the last result of the last minidump
+  bool last_minidump_write_result_;
+
+  // A mutex for use when writing out a minidump that was requested on a
+  // thread other than the exception handler.
+  pthread_mutex_t minidump_write_mutex_;
+
+  // True, if we're using the mutext to indicate when mindump writing occurs
+  bool use_minidump_write_mutex_;
+
+  // Client for out-of-process dump generation.
+  scoped_ptr<CrashGenerationClient> crash_generation_client_;
+};
+
+}  // namespace google_breakpad
+
+#endif  // CLIENT_MAC_HANDLER_EXCEPTION_HANDLER_H__

thirdparty/breakpad/client/mac/handler/minidump_generator.h

@@ -0,0 +1,194 @@
+// Copyright (c) 2006, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// minidump_generator.h:  Create a minidump of the current MacOS process.
+
+#ifndef CLIENT_MAC_GENERATOR_MINIDUMP_GENERATOR_H__
+#define CLIENT_MAC_GENERATOR_MINIDUMP_GENERATOR_H__
+
+#include <mach/mach.h>
+
+#include <string>
+
+#include "client/minidump_file_writer.h"
+#include "common/memory.h"
+#include "common/mac/macho_utilities.h"
+#include "google_breakpad/common/minidump_format.h"
+
+#include "dynamic_images.h"
+
+#if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_7
+  #define HAS_PPC_SUPPORT
+#endif
+
+namespace google_breakpad {
+
+using std::string;
+
+// Use the REGISTER_FROM_THREADSTATE to access a register name from the
+// breakpad_thread_state_t structure.
+#if __DARWIN_UNIX03 || TARGET_CPU_X86_64 || TARGET_CPU_PPC64
+// In The 10.5 SDK Headers Apple prepended __ to the variable names in the
+// i386_thread_state_t structure.  There's no good way to tell what version of
+// the SDK we're compiling against so we just toggle on the same preprocessor
+// symbol Apple's headers use.
+#define REGISTER_FROM_THREADSTATE(a, b) ((a)->__ ## b)
+#else
+#define REGISTER_FROM_THREADSTATE(a, b) (a->b)
+#endif
+
+// Creates a minidump file of the current process.  If there is exception data,
+// use SetExceptionInformation() to add this to the minidump.  The minidump
+// file is generated by the Write() function.
+// Usage:
+// MinidumpGenerator minidump();
+// minidump.Write("/tmp/minidump");
+//
+class MinidumpGenerator {
+ public:
+  MinidumpGenerator();
+  MinidumpGenerator(mach_port_t crashing_task, mach_port_t handler_thread);
+
+  ~MinidumpGenerator();
+
+  // Return <dir>/<unique_name>.dmp
+  // Sets |unique_name| (if requested) to the unique name for the minidump
+  static string UniqueNameInDirectory(const string &dir, string *unique_name);
+
+  // Write out the minidump into |path|
+  // All of the components of |path| must exist and be writable
+  // Return true if successful, false otherwise
+  bool Write(const char *path);
+
+  // Specify some exception information, if applicable
+  void SetExceptionInformation(int type, int code, int subcode,
+                               mach_port_t thread_name) {
+    exception_type_ = type;
+    exception_code_ = code;
+    exception_subcode_ = subcode;
+    exception_thread_ = thread_name;
+  }
+
+  // Gather system information.  This should be call at least once before using
+  // the MinidumpGenerator class.
+  static void GatherSystemInformation();
+
+ private:
+    typedef bool (MinidumpGenerator::*WriteStreamFN)(MDRawDirectory *);
+
+  // Stream writers
+  bool WriteThreadListStream(MDRawDirectory *thread_list_stream);
+  bool WriteMemoryListStream(MDRawDirectory *memory_list_stream);
+  bool WriteExceptionStream(MDRawDirectory *exception_stream);
+  bool WriteSystemInfoStream(MDRawDirectory *system_info_stream);
+  bool WriteModuleListStream(MDRawDirectory *module_list_stream);
+  bool WriteMiscInfoStream(MDRawDirectory *misc_info_stream);
+  bool WriteBreakpadInfoStream(MDRawDirectory *breakpad_info_stream);
+
+  // Helpers
+  u_int64_t CurrentPCForStack(breakpad_thread_state_data_t state);
+  bool GetThreadState(thread_act_t target_thread, thread_state_t state,
+                      mach_msg_type_number_t *count);
+  bool WriteStackFromStartAddress(mach_vm_address_t start_addr,
+                                  MDMemoryDescriptor *stack_location);
+  bool WriteStack(breakpad_thread_state_data_t state,
+                  MDMemoryDescriptor *stack_location);
+  bool WriteContext(breakpad_thread_state_data_t state,
+                    MDLocationDescriptor *register_location);
+  bool WriteThreadStream(mach_port_t thread_id, MDRawThread *thread);
+  bool WriteCVRecord(MDRawModule *module, int cpu_type, 
+                     const char *module_path);
+  bool WriteModuleStream(unsigned int index, MDRawModule *module);
+  size_t CalculateStackSize(mach_vm_address_t start_addr);
+  int  FindExecutableModule();
+
+  // Per-CPU implementations of these methods
+#ifdef HAS_PPC_SUPPORT
+  bool WriteStackPPC(breakpad_thread_state_data_t state,
+                     MDMemoryDescriptor *stack_location);
+  bool WriteContextPPC(breakpad_thread_state_data_t state,
+                       MDLocationDescriptor *register_location);
+  u_int64_t CurrentPCForStackPPC(breakpad_thread_state_data_t state);
+  bool WriteStackPPC64(breakpad_thread_state_data_t state,
+                       MDMemoryDescriptor *stack_location);
+  bool WriteContextPPC64(breakpad_thread_state_data_t state,
+                       MDLocationDescriptor *register_location);
+  u_int64_t CurrentPCForStackPPC64(breakpad_thread_state_data_t state);
+#endif
+  bool WriteStackX86(breakpad_thread_state_data_t state,
+                       MDMemoryDescriptor *stack_location);
+  bool WriteContextX86(breakpad_thread_state_data_t state,
+                       MDLocationDescriptor *register_location);
+  u_int64_t CurrentPCForStackX86(breakpad_thread_state_data_t state);
+  bool WriteStackX86_64(breakpad_thread_state_data_t state,
+                        MDMemoryDescriptor *stack_location);
+  bool WriteContextX86_64(breakpad_thread_state_data_t state,
+                          MDLocationDescriptor *register_location);
+  u_int64_t CurrentPCForStackX86_64(breakpad_thread_state_data_t state);
+
+  // disallow copy ctor and operator=
+  explicit MinidumpGenerator(const MinidumpGenerator &);
+  void operator=(const MinidumpGenerator &);
+
+  // Use this writer to put the data to disk
+  MinidumpFileWriter writer_;
+
+  // Exception information
+  int exception_type_;
+  int exception_code_;
+  int exception_subcode_;
+  mach_port_t exception_thread_;
+  mach_port_t crashing_task_;
+  mach_port_t handler_thread_;
+
+  // CPU type of the task being dumped.
+  cpu_type_t cpu_type_;
+  
+  // System information
+  static char build_string_[16];
+  static int os_major_version_;
+  static int os_minor_version_;
+  static int os_build_number_;
+  
+  // Information about dynamically loaded code
+  DynamicImages *dynamic_images_;
+
+  // PageAllocator makes it possible to allocate memory
+  // directly from the system, even while handling an exception.
+  mutable PageAllocator allocator_;
+
+  // Blocks of memory written to the dump. These are all currently
+  // written while writing the thread list stream, but saved here
+  // so a memory list stream can be written afterwards.
+  wasteful_vector<MDMemoryDescriptor> memory_blocks_;
+};
+
+}  // namespace google_breakpad
+
+#endif  // CLIENT_MAC_GENERATOR_MINIDUMP_GENERATOR_H__

thirdparty/breakpad/client/mac/handler/minidump_test.xcodeproj/project.pbxproj

@@ -0,0 +1,834 @@
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@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>English</string>
+	<key>CFBundleExecutable</key>
+	<string>${EXECUTABLE_NAME}</string>
+	<key>CFBundleIdentifier</key>
+	<string>com.yourcompany.${PRODUCT_NAME:identifier}</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundlePackageType</key>
+	<string>BNDL</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>1.0</string>
+</dict>
+</plist>

thirdparty/breakpad/client/mac/handler/protected_memory_allocator.cc

@@ -0,0 +1,92 @@
+// Copyright (c) 2006, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// ProtectedMemoryAllocator
+//
+// See the header file for documentation
+
+#include "protected_memory_allocator.h"
+#include <assert.h>
+
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ProtectedMemoryAllocator::ProtectedMemoryAllocator(vm_size_t pool_size) 
+  : pool_size_(pool_size),
+    next_alloc_offset_(0),
+    valid_(false) {
+  
+  kern_return_t result = vm_allocate(mach_task_self(),
+                                     &base_address_,
+                                     pool_size,
+                                     TRUE
+                                     );
+  
+  valid_ = (result == KERN_SUCCESS);
+  assert(valid_);
+}
+
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ProtectedMemoryAllocator::~ProtectedMemoryAllocator() {
+  vm_deallocate(mach_task_self(),
+                base_address_,
+                pool_size_
+                );
+}
+
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+char *ProtectedMemoryAllocator::Allocate(vm_size_t bytes) {
+  if (valid_ && next_alloc_offset_ + bytes <= pool_size_) {
+    char *p = (char*)base_address_ + next_alloc_offset_;
+    next_alloc_offset_ += bytes;
+    return p;
+  }
+  
+  return NULL;  // ran out of memory in our allocation block
+}
+
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+kern_return_t  ProtectedMemoryAllocator::Protect() {
+  kern_return_t result = vm_protect(mach_task_self(),
+                                    base_address_,
+                                    pool_size_,
+                                    FALSE,
+                                    VM_PROT_READ);
+  
+  return result;
+}
+
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+kern_return_t  ProtectedMemoryAllocator::Unprotect() {
+  kern_return_t result = vm_protect(mach_task_self(),
+                                    base_address_,
+                                    pool_size_,
+                                    FALSE,
+                                    VM_PROT_READ | VM_PROT_WRITE);
+  
+  return result;
+}

thirdparty/breakpad/client/mac/handler/protected_memory_allocator.h

@@ -0,0 +1,85 @@
+// Copyright (c) 2006, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// ProtectedMemoryAllocator
+//
+// A very simple allocator class which allows allocation, but not deallocation.
+// The allocations can be made read-only with the Protect() method.
+// This class is NOT useful as a general-purpose memory allocation system,
+// since it does not allow deallocation.  It is useful to use for a group
+// of allocations which are created in the same time-frame and destroyed
+// in the same time-frame.  It is useful for making allocations of memory
+// which will not need to change often once initialized.  This memory can then
+// be protected from memory smashers by calling the Protect() method.
+
+#ifndef PROTECTED_MEMORY_ALLOCATOR_H__
+#define PROTECTED_MEMORY_ALLOCATOR_H__
+
+#include <mach/mach.h>
+
+//
+class ProtectedMemoryAllocator {
+ public:
+  ProtectedMemoryAllocator(vm_size_t pool_size);  
+  ~ProtectedMemoryAllocator();
+  
+  // Returns a pointer to an allocation of size n within the pool.
+  // Fails by returning NULL is no more space is available.
+  // Please note that the pointers returned from this method should not
+  // be freed in any way (for example by calling free() on them ).
+  char *         Allocate(vm_size_t n);
+  
+  // Returns the base address of the allocation pool.
+  char *         GetBaseAddress() { return (char*)base_address_; }
+
+  // Returns the size of the allocation pool, including allocated
+  // plus free space.
+  vm_size_t      GetTotalSize() { return pool_size_; }
+
+  // Returns the number of bytes already allocated in the pool.
+  vm_size_t      GetAllocatedSize() { return next_alloc_offset_; }
+
+  // Returns the number of bytes available for allocation.
+  vm_size_t      GetFreeSize() { return pool_size_ - next_alloc_offset_; }
+  
+  // Makes the entire allocation pool read-only including, of course,
+  // all allocations made from the pool.
+  kern_return_t  Protect();  
+
+  // Makes the entire allocation pool read/write.
+  kern_return_t  Unprotect();  
+  
+ private:
+  vm_size_t      pool_size_;
+  vm_address_t   base_address_;
+  vm_size_t      next_alloc_offset_;
+  bool           valid_;
+};
+
+#endif // PROTECTED_MEMORY_ALLOCATOR_H__

thirdparty/breakpad/client/mac/handler/testcases/DynamicImagesTests.cc

@@ -0,0 +1,85 @@
+// Copyright (c) 2008, Google Inc.
+// All rights reserved
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+//
+//  DynamicImagesTests.cpp
+//  minidump_test
+//
+//  Created by Neal Sidhwaney on 4/17/08.
+//  Copyright 2008 Google Inc. All rights reserved.
+//
+
+#include "client/mac/handler/testcases/DynamicImagesTests.h"
+#include "client/mac/handler/dynamic_images.h"
+
+DynamicImagesTests test2(TEST_INVOCATION(DynamicImagesTests,
+                                         ReadTaskMemoryTest));
+DynamicImagesTests test3(TEST_INVOCATION(DynamicImagesTests,
+                                         ReadLibrariesFromLocalTaskTest));
+
+DynamicImagesTests::DynamicImagesTests(TestInvocation *invocation)
+    : TestCase(invocation) {
+}
+
+DynamicImagesTests::~DynamicImagesTests() {
+}
+
+void DynamicImagesTests::ReadTaskMemoryTest() {
+  kern_return_t kr;
+
+  // pick test2 as a symbol we know to be valid to read
+  // anything will work, really
+  void *addr = reinterpret_cast<void*>(&test2);
+  void *buf;
+
+  fprintf(stderr, "reading 0x%p\n", addr);
+  buf = google_breakpad::ReadTaskMemory(mach_task_self(),
+                                        addr,
+                                        getpagesize(),
+                                        &kr);
+
+  CPTAssert(kr == KERN_SUCCESS);
+
+  CPTAssert(buf != NULL);
+
+  CPTAssert(0 == memcmp(buf, (const void*)addr, getpagesize()));
+
+  free(buf);
+}
+
+void DynamicImagesTests::ReadLibrariesFromLocalTaskTest() {
+
+  mach_port_t me = mach_task_self();
+  google_breakpad::DynamicImages *d = new google_breakpad::DynamicImages(me);
+
+  fprintf(stderr,"Local task image count: %d\n", d->GetImageCount());
+
+  d->TestPrint();
+
+  CPTAssert(d->GetImageCount() > 0);
+}

thirdparty/breakpad/client/mac/handler/testcases/DynamicImagesTests.h

@@ -0,0 +1,52 @@
+// Copyright (c) 2008, Google Inc.
+// All rights reserved
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+//
+//  DynamicImagesTests.h
+//  minidump_test
+//
+//  Created by Neal Sidhwaney on 4/17/08.
+//  Copyright 2008 Google Inc. All rights reserved.
+//
+//
+
+#ifndef _CLIENT_MAC_HANDLER_TESTCASES_DYNAMICIMAGESTESTS_H__
+#define _CLIENT_MAC_HANDLER_TESTCASES_DYNAMICIMAGESTESTS_H__
+
+#include <CPlusTest/CPlusTest.h>
+
+class DynamicImagesTests : public TestCase {
+ public:
+  explicit DynamicImagesTests(TestInvocation* invocation);
+  virtual ~DynamicImagesTests();
+
+  void ReadTaskMemoryTest();
+  void ReadLibrariesFromLocalTaskTest();
+};
+
+#endif /* _CLIENT_MAC_HANDLER_TESTCASES_DYNAMICIMAGESTESTS_H__ */

thirdparty/breakpad/client/mac/handler/testcases/breakpad_nlist_test.cc

@@ -0,0 +1,106 @@
+// Copyright (c) 2008, Google Inc.
+// All rights reserved
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+//
+//  breakpad_nlist_test.cc
+//  minidump_test
+//
+//  Created by Neal Sidhwaney on 4/13/08.
+//  Copyright 2008 Google Inc. All rights reserved.
+//
+
+#include "client/mac/handler/testcases/breakpad_nlist_test.h"
+#include <mach-o/nlist.h>
+#include "client/mac/handler/breakpad_nlist_64.h"
+
+BreakpadNlistTest test1(TEST_INVOCATION(BreakpadNlistTest, CompareToNM));
+
+BreakpadNlistTest::BreakpadNlistTest(TestInvocation *invocation)
+    : TestCase(invocation) {
+}
+
+
+BreakpadNlistTest::~BreakpadNlistTest() {
+}
+
+void BreakpadNlistTest::CompareToNM() {
+#if TARGET_CPU_X86_64
+  system("/usr/bin/nm -arch x86_64 /usr/lib/dyld > /tmp/dyld-namelist.txt");
+#elif TARGET_CPU_PPC64
+  system("/usr/bin/nm -arch ppc64 /usr/lib/dyld > /tmp/dyld-namelist.txt");
+#endif
+
+  FILE *fd = fopen("/tmp/dyld-namelist.txt", "rt");
+
+  char oneNMAddr[30];
+  char symbolType;
+  char symbolName[500];
+  while (!feof(fd)) {
+    fscanf(fd, "%s %c %s", oneNMAddr, &symbolType, symbolName);
+    breakpad_nlist symbolList[2];
+    breakpad_nlist &list = symbolList[0];
+
+    memset(symbolList, 0, sizeof(breakpad_nlist)*2);
+    const char *symbolNames[2];
+    symbolNames[0] = (const char*)symbolName;
+    symbolNames[1] = "\0";
+    breakpad_nlist_64("/usr/lib/dyld", &list, symbolNames);
+    uint64_t nmAddr = strtol(oneNMAddr, NULL, 16);
+    if (!IsSymbolMoreThanOnceInDyld(symbolName)) {
+      CPTAssert(nmAddr == symbolList[0].n_value);
+    }
+  }
+
+  fclose(fd);
+}
+
+bool BreakpadNlistTest::IsSymbolMoreThanOnceInDyld(const char *symbolName) {
+  // These are the symbols that occur more than once when nm dumps
+  // the symbol table of /usr/lib/dyld.  Our nlist program returns
+  // the first address because it's doing a search so we need to exclude
+  // these from causing the test to fail
+  const char *multipleSymbols[] = {
+    "__Z41__static_initialization_and_destruction_0ii",
+    "___tcf_0",
+    "___tcf_1",
+    "_read_encoded_value_with_base",
+    "_read_sleb128",
+    "_read_uleb128",
+    "\0"};
+
+  bool found = false;
+
+  for (int i = 0; multipleSymbols[i][0]; i++) {
+    if (!strcmp(multipleSymbols[i], symbolName)) {
+      found = true;
+      break;
+    }
+  }
+
+  return found;
+}

thirdparty/breakpad/client/mac/handler/testcases/breakpad_nlist_test.h

@@ -0,0 +1,62 @@
+// Copyright (c) 2008, Google Inc.
+// All rights reserved
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+//
+//  breakpad_nlist_test.h
+//  minidump_test
+//
+//  Created by Neal Sidhwaney on 4/13/08.
+//  Copyright 2008 Google Inc. All rights reserved.
+//
+//
+
+#ifndef CLIENT_MAC_HANDLER_TESTCASES_BREAKPAD_NLIST_TEST_H__
+#define CLIENT_MAC_HANDLER_TESTCASES_BREAKPAD_NLIST_TEST_H__
+
+#include <CPlusTest/CPlusTest.h>
+
+class BreakpadNlistTest : public TestCase {
+ private:
+
+  // nm dumps multiple addresses for the same symbol in
+  // /usr/lib/dyld. So we track those so we don't report failures
+  // in mismatches between what our nlist returns and what nm has
+  // for the duplicate symbols.
+  bool IsSymbolMoreThanOnceInDyld(const char *symbolName);
+
+ public:
+  explicit BreakpadNlistTest(TestInvocation* invocation);
+  virtual ~BreakpadNlistTest();
+
+
+  /* This test case runs nm on /usr/lib/dyld and then compares the
+     output of every symbol to what our nlist implementation returns */
+  void CompareToNM();
+};
+
+#endif /* CLIENT_MAC_HANDLER_TESTCASES_BREAKPAD_NLIST_TEST_H__*/

thirdparty/breakpad/client/mac/handler/testcases/dwarftests.h

@@ -0,0 +1,46 @@
+// Copyright (c) 2008, Google Inc.
+// All rights reserved
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+//
+//  dwarftests.h
+//  minidump_test
+//
+//  Created by Neal Sidhwaney on 9/24/08.
+//  Copyright 2008 Google Inc. All rights reserved.
+//
+
+#import <SenTestingKit/SenTestingKit.h>
+
+
+@interface dwarftests : SenTestCase {
+
+}
+
+- (void) testDWARFSymbolFileGeneration;
+
+@end

thirdparty/breakpad/client/mac/handler/testcases/dwarftests.mm

@@ -0,0 +1,60 @@
+// Copyright (c) 2008, Google Inc.
+// All rights reserved
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+//
+//  dwarftests.m
+//  minidump_test
+//
+//  Created by Neal Sidhwaney on 9/24/08.
+//  Copyright 2008 Google Inc. All rights reserved.
+//
+
+#import "dwarftests.h"
+#import "dump_syms.h"
+
+@implementation dwarftests
+- (void) testDWARFSymbolFileGeneration {
+  NSString *inputBreakpadSymbolFile = @"testcases/testdata/dump_syms_i386_breakpad.sym";
+  NSString *outputBreakpadSymbolFile = @"/tmp/dump_syms_i386.breakpad";
+
+  DumpSymbols *dump = [[DumpSymbols alloc] initWithContentsOfFile:@"testcases/testdata/dump_syms_dwarf_data"];
+
+  STAssertNotNil(dump, @"DumpSymbols is nil");
+  [dump setArchitecture:@"i386"];
+  [dump writeSymbolFile:outputBreakpadSymbolFile];
+  
+  NSData *d = [[NSData alloc] initWithContentsOfFile:inputBreakpadSymbolFile];
+  STAssertNotNil(d, @"Input breakpad symbol file not found");
+  
+  NSData *d1 = [[NSData alloc] initWithContentsOfFile:outputBreakpadSymbolFile]; 
+  STAssertNotNil(d1, @"Output breakpad symbol file not found");
+
+  STAssertTrue([d isEqualToData:d1],
+  @"Symbol files were not equal!",nil);
+}
+@end

thirdparty/breakpad/client/mac/sender/crash_report_sender-Info.plist

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>English</string>
+	<key>CFBundleDisplayName</key>
+	<string>${EXECUTABLE_NAME}</string>
+	<key>CFBundleExecutable</key>
+	<string>${EXECUTABLE_NAME}</string>
+	<key>CFBundleIconFile</key>
+	<string>crash_report_sender</string>
+	<key>CFBundleIdentifier</key>
+	<string>com.Breakpad.${PRODUCT_NAME:identifier}</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>${EXECUTABLE_NAME}</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>1.0</string>
+	<key>LSHasLocalizedDisplayName</key>
+	<true/>
+	<key>NSMainNibFile</key>
+	<string>MainMenu</string>
+	<key>NSPrincipalClass</key>
+	<string>NSApplication</string>
+</dict>
+</plist>

thirdparty/breakpad/client/mac/sender/crash_report_sender.h

@@ -0,0 +1,140 @@
+// Copyright (c) 2006, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// This component uses the HTTPMultipartUpload of the breakpad project to send
+// the minidump and associated data to the crash reporting servers.
+// It will perform throttling based on the parameters passed to it and will
+// prompt the user to send the minidump.
+
+#include <Foundation/Foundation.h>
+
+#include "client/mac/Framework/Breakpad.h"
+#import "GTMDefines.h"
+
+#define kClientIdPreferenceKey @"clientid"
+
+extern NSString *const kGoogleServerType;
+extern NSString *const kSocorroServerType;
+extern NSString *const kDefaultServerType;
+
+// We're sublcassing NSTextField in order to override a particular
+// method (see the implementation) that lets us reject changes if they
+// are longer than a particular length.  Bindings would normally solve
+// this problem, but when we implemented a validation method, and
+// returned NO for strings that were too long, the UI was not updated
+// right away, which was a poor user experience.  The UI would be
+// updated as soon as the text field lost first responder status,
+// which isn't soon enough.  It is a known bug that the UI KVO didn't
+// work in the middle of a validation.
+@interface LengthLimitingTextField : NSTextField {
+  @private
+   NSUInteger maximumLength_;
+}
+
+- (void)setMaximumLength:(NSUInteger)maxLength;
+@end
+
+@interface Reporter : NSObject {
+ @public
+  IBOutlet NSWindow *alertWindow_;        // The alert window
+
+  // Grouping boxes used for resizing.
+  IBOutlet NSBox *headerBox_;
+  IBOutlet NSBox *preEmailBox_;
+  IBOutlet NSBox *emailSectionBox_;
+  // Localized elements (or things that need to be moved during localization).
+  IBOutlet NSTextField                *dialogTitle_;
+  IBOutlet NSTextField                *commentMessage_;
+  IBOutlet NSTextField                *emailMessage_;
+  IBOutlet NSTextField                *emailLabel_;
+  IBOutlet NSTextField                *privacyLinkLabel_;
+  IBOutlet NSButton                   *sendButton_;
+  IBOutlet NSButton                   *cancelButton_;
+  IBOutlet LengthLimitingTextField    *emailEntryField_;
+  IBOutlet LengthLimitingTextField    *commentsEntryField_;
+  IBOutlet NSTextField                *countdownLabel_;
+  IBOutlet NSView                     *privacyLinkArrow_;
+
+  // Text field bindings, for user input.
+  NSString *commentsValue_;                // Comments from the user
+  NSString *emailValue_;                   // Email from the user
+  NSString *countdownMessage_;             // Message indicating time
+                                           // left for input.
+ @private
+  int configFile_;                         // File descriptor for config file
+  NSMutableDictionary *parameters_;        // Key value pairs of data (STRONG)
+  NSData *minidumpContents_;               // The data in the minidump (STRONG)
+  NSData *logFileData_;                    // An NSdata for the tar,
+                                           // bz2'd log file.
+  NSTimeInterval remainingDialogTime_;     // Keeps track of how long
+                                           // we have until we cancel
+                                           // the dialog
+  NSTimer *messageTimer_;                  // Timer we use to update
+                                           // the dialog
+  NSMutableDictionary *serverDictionary_;  // The dictionary mapping a
+                                           // server type name to a
+                                           // dictionary of server
+                                           // parameter names.
+  NSMutableDictionary *socorroDictionary_; // The dictionary for
+                                           // Socorro.
+  NSMutableDictionary *googleDictionary_;  // The dictionary for
+                                           // Google.
+  NSMutableDictionary *extraServerVars_;   // A dictionary containing
+                                           // extra key/value pairs
+                                           // that are uploaded to the
+                                           // crash server with the
+                                           // minidump.
+}
+
+// Stops the modal panel with an NSAlertDefaultReturn value. This is the action
+// invoked by the "Send Report" button.
+- (IBAction)sendReport:(id)sender;
+// Stops the modal panel with an NSAlertAlternateReturn value. This is the
+// action invoked by the "Cancel" button.
+- (IBAction)cancel:(id)sender;
+// Opens the Privacy Policy url in the default web browser.
+- (IBAction)showPrivacyPolicy:(id)sender;
+
+// Delegate methods for the NSTextField for comments. We want to capture the
+// Return key and use it to send the message when no text has been entered.
+// Otherwise, we want Return to add a carriage return to the comments field.
+- (BOOL)control:(NSControl *)control textView:(NSTextView *)textView
+                          doCommandBySelector:(SEL)commandSelector;
+
+// Accessors to make bindings work
+- (NSString *)commentsValue;
+- (void)setCommentsValue:(NSString *)value;
+
+- (NSString *)emailValue;
+- (void)setEmailValue:(NSString *)value;
+
+- (NSString *)countdownMessage;
+- (void)setCountdownMessage:(NSString *)value;
+
+@end