mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-27 05:00:15 +00:00
c0ecb80a43
2003-12-20 Ulrich Drepper <drepper@redhat.com> * elf/rtld.c (dl_main): Optimize order or subexpressions in if().
53 lines
1.7 KiB
C
53 lines
1.7 KiB
C
/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <errno.h>
|
|
#include <signal.h>
|
|
#include <sysdep.h>
|
|
#include <tls.h>
|
|
#include <kernel-features.h>
|
|
|
|
|
|
int
|
|
raise (sig)
|
|
int sig;
|
|
{
|
|
#if __ASSUME_TGKILL || defined __NR_tgkill
|
|
/* raise is an async-safe function. It could be called while the
|
|
fork function temporarily invalidated the PID field. Adjust for
|
|
that. */
|
|
pid_t pid = THREAD_GETMEM (THREAD_SELF, pid);
|
|
if (__builtin_expect (pid < 0, 0))
|
|
pid = -pid;
|
|
#endif
|
|
|
|
#if __ASSUME_TGKILL
|
|
return INLINE_SYSCALL (tgkill, 3, pid, THREAD_GETMEM (THREAD_SELF, tid),
|
|
sig);
|
|
#else
|
|
# ifdef __NR_tgkill
|
|
int res = INLINE_SYSCALL (tgkill, 3, pid, THREAD_GETMEM (THREAD_SELF, tid),
|
|
sig);
|
|
if (res != -1 || errno != ENOSYS)
|
|
return res;
|
|
# endif
|
|
return INLINE_SYSCALL (tkill, 2, THREAD_GETMEM (THREAD_SELF, tid), sig);
|
|
#endif
|
|
}
|