Add pthread_atfork support

* Versions (libc): Add __register_atfork with GLIBC_PRIVATE version.
* forward.c: Include <errno.h>
(atfork): New structure.
(atfork_lock): New mutex.
(fork_handlers, fork_last_handler): New variables.
(atfork_pthread_prepare, atfork_pthread_parent, atfork_pthread_child): New
atfork hooks
(__register_atfork): New function.
* sysdeps/generic/pt-atfork.c (pthread_atfork): Call __register_atfork.

1 files changed, 1 insertions, 0 deletions

diff --git a/Versions b/Versions
index 3d151cf..41bff96 100644
--- a/Versions
+++ b/Versions
@@ -18,6 +18,7 @@ libc {
     __pthread_get_cleanup_stack;
   GLIBC_PRIVATE {
     __libc_pthread_init;
+    __register_atfork;
   }
 }