From: GNU Libc Maintainers <debian-glibc@lists.debian.org>
Date: Sat, 17 Sep 2016 18:00:44 +0000 (+0000)
Subject: libpthread_sigmask
X-Git-Tag: archive/raspbian/2.25-3+rpi1~1^2^2^2^2^2^2^2^2^2^2^2^2~115
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=71a71411a32a7d2501876eadc7e9554908339120;p=glibc.git

libpthread_sigmask

* libpthread/sysdeps/mach/hurd/pt-sigstate.c (__pthread_sigstate): Wake up the message
thread if any pending signals have been unblocked (code grabbed from glibc).

Gbp-Pq: Topic hurd-i386
Gbp-Pq: Name libpthread_sigmask.diff
---

diff --git a/libpthread/sysdeps/mach/hurd/pt-sigstate.c b/libpthread/sysdeps/mach/hurd/pt-sigstate.c
index 68c79c5be..2af3e396e 100644
--- a/libpthread/sysdeps/mach/hurd/pt-sigstate.c
+++ b/libpthread/sysdeps/mach/hurd/pt-sigstate.c
@@ -21,6 +21,7 @@
 #include <assert.h>
 #include <signal.h>
 #include <hurd/signal.h>
+#include <hurd/msg.h>
 
 #include <pt-internal.h>
 
@@ -31,11 +32,12 @@ __pthread_sigstate (struct __pthread *thread, int how,
 {
   error_t err = 0;
   struct hurd_sigstate *ss;
+  sigset_t pending;
 
   ss = _hurd_thread_sigstate (thread->kernel_thread);
   assert (ss);
 
-  __pthread_spin_lock (&ss->lock);
+  _hurd_sigstate_lock (ss);
 
   if (oset)
     *oset = ss->blocked;
@@ -63,7 +65,13 @@ __pthread_sigstate (struct __pthread *thread, int how,
   if (! err && clear_pending)
     __sigemptyset (&ss->pending);
 
-  __pthread_spin_unlock (&ss->lock);
+  pending = _hurd_sigstate_pending (ss) & ~ss->blocked;
+  _hurd_sigstate_unlock (ss);
+
+  if (! err && pending)
+    /* Send a message to the signal thread so it
+       will wake up and check for pending signals.  */
+    __msg_sig_post (_hurd_msgport, 0, 0, __mach_task_self ());
 
   return err;
 }