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Update to v101r18 release.

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byuu says:

Changelog:

  - added 30 new PAL games to icarus (courtesy of Mikerochip)
  - new version of libco no longer requires mprotect nor W|X permissions
  - nall: default C compiler to -std=c11 instead of -std=c99
  - nall: use `-fno-strict-aliasing` during compilation
  - updated nall/certificates (hopefully for the last time)
  - updated nall/http to newer coding conventions
  - nall: improve handling of range() function

I didn't really work on higan at all, this is mostly just a release
because lots of other things have changed.

The most interesting is `-fno-strict-aliasing` ... basically, it joins
`-fwrapv` as being "stop the GCC developers from doing *really* evil
shit that could lead to security vulnerabilities or instabilities."

For the most part, it's a ~2% speed penalty for higan. Except for the
Sega Genesis, where it's a ~10% speedup. I have no idea how that's
possible, but clearly something's going very wrong with strict aliasing
on the Genesis core.

So ... it is what it is. If you need the performance for the non-Genesis
cores, you can turn it off in your builds. But I'm getting quite sick of
C++'s "surprises" and clever compiler developers, so I'm keeping it on
in all of my software going forward.
This commit is contained in:
Tim Allen
2016-09-14 21:55:53 +10:00
parent d6e9d94ec3
commit c6fc15f8d2
26 changed files with 980 additions and 514 deletions
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13
libco/sjlj.c
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@@ -5,11 +5,9 @@
*/
/*
* Note this was designed for UNIX systems. Based on ideas expressed in a paper
* by Ralf Engelschall.
* For SJLJ on other systems, one would want to rewrite springboard() and
* co_create() and hack the jmb_buf stack pointer.
*/
note this was designed for UNIX systems. Based on ideas expressed in a paper by Ralf Engelschall.
for SJLJ on other systems, one would want to rewrite springboard() and co_create() and hack the jmb_buf stack pointer.
*/
#define LIBCO_C
#include "libco.h"
@@ -25,11 +23,12 @@ extern "C" {
typedef struct {
sigjmp_buf context;
void (*coentry)(void);
void *stack;
void* stack;
} cothread_struct;
static thread_local cothread_struct co_primary;
static thread_local cothread_struct *creating, *co_running = 0;
static thread_local cothread_struct* creating;
static thread_local cothread_struct* co_running = 0;
static void springboard(int ignored) {
if(sigsetjmp(creating->context, 0)) {