where to find exit(int) function implementation

[Trond Endrestøl]

On Wed, 10 Jan 2018 15:38-0000, Vitalio D wrote:

> Hello, 
> Indeed I'm interested in _exit syscall.
> 
> Thanks for response Yuri, but i'm a newbie and don't
> see any PSEUDO marking in unistd.h at least.
> What i see in unisrd.h is 
> 
> ...
> __BEGIN_DECLS
> /* 1003.1-1990 */
> void     _exit(int) __dead2;
> ...
> 
> __BEGIN_DECLS being defined in sys/sys/cdefs.h as exten "C" {
> but no PSEUDO. Am i missing something?

If you want to see what happens inside the kernel when servicing the 
exit syscall, have a look at /usr/src/sys/kern/kern_exit.c.

-- 
Trond.