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2001-11-30  Andreas Schwab  <schwab@suse.de>

	* pthread.c (pthread_handle_sigcancel) [THREAD_SELF]: Double check
	that self is the manager thread, and initialize the thread
	register if not.
	(thread_self_stack) [THREAD_SELF]: New function to find self via
	stack pointer.
	* manager.c (pthread_handle_create): Don't block cancel signal any
	more.

	(THREAD_GETMEM_NC):
This commit is contained in:
Ulrich Drepper
2001-11-30 21:14:09 +00:00
parent 096f115125
commit c3317d1e8b
3 changed files with 47 additions and 17 deletions
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13
linuxthreads/manager.c
View File

@ -534,7 +534,6 @@ static int pthread_handle_create(pthread_t *thread, const pthread_attr_t *attr,
size_t guardsize = 0;
int pagesize = __getpagesize();
int saved_errno;
sigset_t newmask, oldmask;
/* First check whether we have to change the policy and if yes, whether
we can do this. Normally this should be done by examining the
@ -620,11 +619,6 @@ static int pthread_handle_create(pthread_t *thread, const pthread_attr_t *attr,
if ((mask & (__pthread_threads_events.event_bits[idx]
| event_maskp->event_bits[idx])) != 0)
{
/* Block cancel signal in the child until it is fully
initialized. */
sigemptyset(&newmask);
sigaddset(&newmask, __pthread_sig_cancel);
sigprocmask(SIG_BLOCK, &newmask, &oldmask);
/* Lock the mutex the child will use now so that it will stop. */
__pthread_lock(new_thread->p_lock, NULL);
@ -653,7 +647,6 @@ static int pthread_handle_create(pthread_t *thread, const pthread_attr_t *attr,
__pthread_sig_cancel, new_thread);
#endif
saved_errno = errno;
sigprocmask(SIG_SETMASK, &oldmask, NULL);
if (pid != -1)
{
/* Now fill in the information about the new thread in
@ -679,11 +672,6 @@ static int pthread_handle_create(pthread_t *thread, const pthread_attr_t *attr,
}
if (pid == 0)
{
/* Block cancel signal in the child until it is fully
initialized. */
sigemptyset(&newmask);
sigaddset(&newmask, __pthread_sig_cancel);
sigprocmask(SIG_BLOCK, &newmask, &oldmask);
#ifdef NEED_SEPARATE_REGISTER_STACK
pid = __clone2(pthread_start_thread,
(void **)new_thread_bottom,
@ -700,7 +688,6 @@ static int pthread_handle_create(pthread_t *thread, const pthread_attr_t *attr,
__pthread_sig_cancel, new_thread);
#endif /* !NEED_SEPARATE_REGISTER_STACK */
saved_errno = errno;
sigprocmask(SIG_SETMASK, &oldmask, NULL);
}
/* Check if cloning succeeded */
if (pid == -1) {