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-rw-r--r--test/nptl/tst-signal6.c192
1 files changed, 192 insertions, 0 deletions
diff --git a/test/nptl/tst-signal6.c b/test/nptl/tst-signal6.c
new file mode 100644
index 000000000..85a864002
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+++ b/test/nptl/tst-signal6.c
@@ -0,0 +1,192 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <pthread.h>
+#include <signal.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+
+#define N 2
+static pthread_barrier_t bar;
+static struct
+{
+ void *p;
+ pthread_t s;
+} ti[N];
+static int sig1;
+
+
+static void
+handler (int sig)
+{
+ pthread_t self = pthread_self ();
+ size_t i;
+
+ for (i = 0; i < N; ++i)
+ if (ti[i].s == self)
+ {
+ if ((uintptr_t) ti[i].p <= (uintptr_t) &self
+ && (uintptr_t) ti[i].p + 2 * MINSIGSTKSZ > (uintptr_t) &self)
+ {
+ puts ("alt stack not used");
+ exit (1);
+ }
+
+ printf ("thread %zu used alt stack for signal %d\n", i, sig);
+
+ return;
+ }
+
+ puts ("handler: thread not found");
+ exit (1);
+}
+
+
+static void *
+tf (void *arg)
+{
+ size_t nr = (uintptr_t) arg;
+ if (nr >= N)
+ {
+ puts ("wrong nr parameter");
+ exit (1);
+ }
+
+ sigset_t ss;
+ sigemptyset (&ss);
+ size_t i;
+ for (i = 0; i < N; ++i)
+ if (i != nr)
+ if (sigaddset (&ss, sig1 + i) != 0)
+ {
+ puts ("tf: sigaddset failed");
+ exit (1);
+ }
+ if (pthread_sigmask (SIG_BLOCK, &ss, NULL) != 0)
+ {
+ puts ("tf: sigmask failed");
+ exit (1);
+ }
+
+ void *p = malloc (2 * MINSIGSTKSZ);
+ if (p == NULL)
+ {
+ puts ("tf: malloc failed");
+ exit (1);
+ }
+
+ stack_t s;
+ s.ss_sp = p;
+ s.ss_size = 2 * MINSIGSTKSZ;
+ s.ss_flags = 0;
+ if (sigaltstack (&s, NULL) != 0)
+ {
+ puts ("tf: sigaltstack failed");
+ exit (1);
+ }
+
+ ti[nr].p = p;
+ ti[nr].s = pthread_self ();
+
+ pthread_barrier_wait (&bar);
+
+ pthread_barrier_wait (&bar);
+
+ return NULL;
+}
+
+
+static int
+do_test (void)
+{
+ sig1 = SIGRTMIN;
+ if (sig1 + N > SIGRTMAX)
+ {
+ puts ("too few RT signals");
+ return 0;
+ }
+
+ struct sigaction sa;
+ sa.sa_handler = handler;
+ sa.sa_flags = 0;
+ sigemptyset (&sa.sa_mask);
+
+ if (sigaction (sig1, &sa, NULL) != 0
+ || sigaction (sig1 + 1, &sa, NULL) != 0
+ || sigaction (sig1 + 2, &sa, NULL) != 0)
+ {
+ puts ("sigaction failed");
+ return 1;
+ }
+
+ if (pthread_barrier_init (&bar, NULL, 1 + N) != 0)
+ {
+ puts ("barrier_init failed");
+ return 1;
+ }
+
+ pthread_t th[N];
+ size_t i;
+ for (i = 0; i < N; ++i)
+ if (pthread_create (&th[i], NULL, tf, (void *) (long int) i) != 0)
+ {
+ puts ("create failed");
+ return 1;
+ }
+
+ /* Block the three signals. */
+ sigset_t ss;
+ sigemptyset (&ss);
+ for (i = 0; i <= N; ++i)
+ sigaddset (&ss, sig1 + i);
+ if (pthread_sigmask (SIG_BLOCK, &ss, NULL) != 0)
+ {
+ puts ("main: sigmask failed");
+ return 1;
+ }
+
+ pthread_barrier_wait (&bar);
+
+ /* Send some signals. */
+ pid_t me = getpid ();
+ kill (me, sig1 + N);
+ for (i = 0; i < N; ++i)
+ kill (me, sig1 + i);
+ kill (me, sig1 + N);
+
+ /* Give the signals a chance to be worked on. */
+ sleep (1);
+
+ pthread_barrier_wait (&bar);
+
+ for (i = 0; i < N; ++i)
+ if (pthread_join (th[i], NULL) != 0)
+ {
+ puts ("join failed");
+ return 1;
+ }
+
+ return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"