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2003-12-20  Ulrich Drepper  <drepper@redhat.com>

	* elf/rtld.c (dl_main): Optimize order or subexpressions in if().
This commit is contained in:
Ulrich Drepper
2003-12-20 23:39:42 +00:00
parent bbe35eb571
commit c0ecb80a43
9 changed files with 82 additions and 18 deletions
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11
nptl/sysdeps/unix/sysv/linux/fork.c
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@ -117,6 +117,12 @@ __libc_fork (void)
pid_t ppid = THREAD_GETMEM (THREAD_SELF, tid);
#endif
/* We need to prevent the getpid() code to update the PID field so
that, if a signal arrives in the child very early and the signal
handler uses getpid(), the value returned is correct. */
pid_t parentpid = THREAD_GETMEM (THREAD_SELF, pid);
THREAD_SETMEM (THREAD_SELF, pid, -parentpid);
#ifdef ARCH_FORK
pid = ARCH_FORK ();
#else
@ -135,7 +141,7 @@ __libc_fork (void)
*__fork_generation_pointer += 4;
/* Adjust the PID field for the new process. */
self->pid = self->tid;
THREAD_SETMEM (self, pid, THREAD_GETMEM (self, tid));
#if HP_TIMING_AVAIL
/* The CPU clock of the thread and process have to be set to zero. */
@ -180,6 +186,9 @@ __libc_fork (void)
{
assert (THREAD_GETMEM (THREAD_SELF, tid) == ppid);
/* Restore the PID value. */
THREAD_SETMEM (THREAD_SELF, pid, parentpid);
/* We execute this even if the 'fork' call failed. */
_IO_list_unlock ();