[git commit branch/0.9.33] librt: re-add SIGCANCEL to the list of blocked signal in helper thread

Carmelo Amoroso carmelo.amoroso at st.com
Thu Aug 30 10:14:44 UTC 2012

commit: http://git.uclibc.org/uClibc/commit/?id=fec308fdfaf9f557ef5fb17c308c48259012b825
branch: http://git.uclibc.org/uClibc/commit/?id=refs/heads/0.9.33

Indeed if the libpthread is before the libc in the library look up
the SIGCANCEL is removed from the list of the blocked signal by
sigfillset func, this can produce the handler not properly called.
This commit revert what Denys modified in commit

Signed-off-by: Filippo Arcidiacono <filippo.arcidiacono at st.com>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso at st.com>
(cherry picked from commit cb43f2afba0633400387fa7c55dda3396517f58a)

Signed-off-by: Carmelo Amoroso <carmelo.amoroso at st.com>
 .../nptl/sysdeps/unix/sysv/linux/timer_routines.c  |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/timer_routines.c b/libpthread/nptl/sysdeps/unix/sysv/linux/timer_routines.c
index 4319d8d..2681961 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/timer_routines.c
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/timer_routines.c
@@ -175,7 +175,7 @@ __start_helper_thread (void)
   sigset_t ss;
   sigset_t oss;
   sigfillset (&ss);
-  /*__sigaddset (&ss, SIGCANCEL); - already done by sigfillset */
+  __sigaddset (&ss, SIGCANCEL);
   INTERNAL_SYSCALL (rt_sigprocmask, err, 4, SIG_SETMASK, &ss, &oss, _NSIG / 8);

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