On Sun, Nov 07, 2004 at 04:29:42PM -0800, Dan Strick wrote:
> Does anyone know where the system calls are really defined?
> I followed open() to _open() to __sys_open() which seems
> to be part of something called libc_r before I ran into a
> blank wall. I grepped all of the regular files in /usr/src
> and /usr/include and turned up nothing. I even tried
> grepping for open in the output of "nm -g /usr/lib/libc.a".
> There is no __sys_open() in libc. Am I dealing with
> C-compiler magic? Secret macro instructions invoking
> undocumented gnu C-compiler asm() features? A CIA plot?
>
> Is any of this low level structure documented anywhere?
Grok the following:
/usr/src/lib/libc/sys/Makefile.inc
/usr/src/sys/sys/syscall.mk
-Kurt
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