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C standard lib spelling/grammar
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@@ -111,7 +111,7 @@ The C standard library is more important to the operating system than you might
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think. It provides some useful functions and an interface to the kernel. But it
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also handles DNS requests and provides a dynamic linker. We don't really have to
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pay attention to any of this, we can just statically link the one we are using
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right know which is probably 'glibc'. This means the following part is optional.
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right now which is probably 'glibc'. This means the following part is optional.
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But I thought this would make it more interesting and it also makes us able to
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build smaller binaries.
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@@ -121,18 +121,18 @@ on Ubuntu or simply ``musl`` on Arch Linux. Now we can link binaries to musl
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instead of glibc by using ``musl-gcc`` instead of ``gcc``.
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Before we can build busybox with musl, we need sanitized kernel headers for use
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with musl. You get get that from [this github
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with musl. You get that from [this github
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repo](https://github.com/sabotage-linux/kernel-headers). And set
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``CONFIG_EXTRA_CFLAGS`` in your busybox config to
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``CONFIG_EXTRA_CFLAGS="-I/path/to/kernel-headers/x86_64/include"`` to use them.
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Obviously change ``/path/to`` to the location where you put the headers repo,
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can be relative from within the busybox source directory.
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which can be relative from within the busybox source directory.
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If you run ``make CC=musl-gcc`` now, the busybox executable will be
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significantly smaller because we are statically linking a much smaller libc.
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Be aware that even though there is a libc standard, musl is not always a
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drop-in replacement from glibc if the application you're compiling uses glibc
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drop-in replacement for glibc if the application you're compiling uses glibc
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specific things.
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Building the Disk Image
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