Fix _exit for Linux

[Alexandre Oliva]

On Sep 16, 2002, Ulrich Drepper <drepper@redhat.com> wrote:

> Jakub Jelinek wrote:
>> There is a difference between libc_hidden_def in .S files and in .c files.
>> In .S files it will work even if libc_hidden_proto () was not declared
>> in header files (usually the assembly doesn't even include those headers),
>> while if you use libc_hidden_{def,weak} without previous libc_hidden_proto,
>> things will break badly...

> Anyway, the _exit code can now be hidden.  The implementation in glibc
> itself is now correct if compiled with the new kernel headers so there
> is no need to allow it to be overwritten.  Let's change
> include/unistd.h and add hidden everywhere for _exit.

Apologies for the delay.  Here's the patch that fixes the mips port
such that libc.so doesn't fail to link because __syscall_exit is not
defined.

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-- 
Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer                 aoliva@{redhat.com, gcc.gnu.org}
CS PhD student at IC-Unicamp        oliva@{lsd.ic.unicamp.br, gnu.org}
Free Software Evangelist                Professional serial bug killer