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* pthread-errnos.sym: New file.

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* Makefile (gen-as-const-headers): New variable, list that file.
	* sysdeps/unix/sysv/linux/i386/i486/sem_wait.S: Include generated
	header <pthread-errnos.h> instead of defining errno values here.
	* sysdeps/unix/sysv/linux/i386/i486/sem_trywait.S: Likewise.
	* sysdeps/unix/sysv/linux/i386/i486/sem_timedwait.S: Likewise.
	* sysdeps/unix/sysv/linux/i386/i486/sem_post.S: Likewise.
	* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S: Likewise.
	* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S:
	Likewise.
	* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S:
	Likewise.
	* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S: Likewise.
	* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S: Likewise.
	* sysdeps/unix/sysv/linux/i386/i486/lowlevelmutex.S: Likewise.
	* sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sem_wait.S: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sem_trywait.S: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sem_timedwait.S: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sem_post.S: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/lowlevelmutex.S: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/lowlevellock.S: Likewise.
	* sysdeps/unix/sysv/linux/sh/sem_trywait.S: Likewise.
	* sysdeps/unix/sysv/linux/sh/sem_timedwait.S: Likewise.
	* sysdeps/unix/sysv/linux/sh/sem_post.S: Likewise.
	* sysdeps/unix/sysv/linux/sh/sem_wait.S: Likewise.
	* sysdeps/unix/sysv/linux/sh/pthread_rwlock_wrlock.S: Likewise.
	* sysdeps/unix/sysv/linux/sh/pthread_rwlock_timedwrlock.S: Likewise.
	* sysdeps/unix/sysv/linux/sh/pthread_rwlock_timedrdlock.S: Likewise.
	* sysdeps/unix/sysv/linux/sh/pthread_cond_timedwait.S: Likewise.
	* sysdeps/unix/sysv/linux/sh/pthread_rwlock_rdlock.S: Likewise.
	* sysdeps/unix/sysv/linux/sh/lowlevellock.S: Likewise.
	* sysdeps/unix/sysv/linux/sh/lowlevelmutex.S: Likewise.
	* sysdeps/i386/i486/pthread_spin_trylock.S: Likewise.
	* sysdeps/x86_64/pthread_spin_trylock.S: Likewise.
	* sysdeps/sh/pthread_spin_trylock.S: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.S: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_wrlock.S: Likewise.

	* sysdeps/unix/sysv/linux/fork.c: Add an assert to check that
	CLONE_CHILD_SETTID worked.
This commit is contained in:
Roland McGrath
2003-03-12 10:30:26 +00:00
parent 326132dbdb
commit 0bb2ac85a6
5 changed files with 56 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
nptl/sysdeps/unix/sysv/linux/fork.c
View File

@@ -25,6 +25,7 @@
#include <tls.h>
#include "fork.h"
#include <bits/stdio-lock.h>
#include <assert.h>
unsigned long int *__fork_generation_pointer;
@@ -68,6 +69,8 @@ __libc_fork (void)
_IO_list_lock ();
pid_t ppid = THREAD_GETMEM (THREAD_SELF, tid);
#ifdef ARCH_FORK
pid = ARCH_FORK ();
#else
@@ -75,8 +78,11 @@ __libc_fork (void)
pid = INLINE_SYSCALL (fork, 0);
#endif
if (pid == 0)
{
assert (THREAD_GETMEM (THREAD_SELF, tid) != ppid);
if (__fork_generation_pointer != NULL)
*__fork_generation_pointer += 4;
@@ -101,6 +107,8 @@ __libc_fork (void)
}
else
{
assert (THREAD_GETMEM (THREAD_SELF, tid) == ppid);
/* We execute this even if the 'fork' call failed. */
_IO_list_unlock ();