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[hurd,commited] htl: Fix calling pthread_exit in the child of a fork
- From: Samuel Thibault <samuel dot thibault at ens-lyon dot org>
- To: libc-alpha at sourceware dot org
- Cc: Samuel Thibault <samuel dot thibault at ens-lyon dot org>, commit-hurd at gnu dot org
- Date: Sun, 9 Feb 2020 17:02:10 +0100
- Subject: [hurd,commited] htl: Fix calling pthread_exit in the child of a fork
We need to reset the threads counter, otherwise pthread_exit() would not
call exit(0).
---
sysdeps/mach/hurd/htl/pt-sysdep.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/sysdeps/mach/hurd/htl/pt-sysdep.c b/sysdeps/mach/hurd/htl/pt-sysdep.c
index e306cc81dc..32a290c4ee 100644
--- a/sysdeps/mach/hurd/htl/pt-sysdep.c
+++ b/sysdeps/mach/hurd/htl/pt-sysdep.c
@@ -35,6 +35,13 @@ static void *init_routine (void);
want to change it yet. */
void *(*_cthread_init_routine) (void) = &init_routine;
+static void
+reset_pthread_total (void)
+{
+ /* Only current thread remains */
+ __pthread_total = 1;
+}
+
/* This function is called from the Hurd-specific startup code. It
should return a new stack pointer for the main thread. The caller
will switch to this new stack before doing anything serious. */
@@ -78,6 +85,8 @@ _init_routine (void *stack)
when we return from here) shouldn't be seen as a user thread. */
__pthread_total--;
+ __pthread_atfork (NULL, NULL, reset_pthread_total);
+
/* Make MiG code thread aware. */
__mig_init (thread->stackaddr);
--
2.24.1