Sync to HEAD@r272516.

1 files changed, 261 insertions, 0 deletions

diff --git a/contrib/netbsd-tests/lib/libpthread/t_sigmask.c b/contrib/netbsd-tests/lib/libpthread/t_sigmask.c
new file mode 100644
index 0000000..69e0577
--- /dev/null
+++ b/contrib/netbsd-tests/lib/libpthread/t_sigmask.c
@@ -0,0 +1,261 @@
+/* $NetBSD: t_sigmask.c,v 1.3 2013/10/19 17:45:01 christos Exp $ */
+
+/*
+ * Copyright (c) 2008, 2010 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__COPYRIGHT("@(#) Copyright (c) 2008, 2010\
+ The NetBSD Foundation, inc. All rights reserved.");
+__RCSID("$NetBSD: t_sigmask.c,v 1.3 2013/10/19 17:45:01 christos Exp $");
+
+/*
+ * Regression test for pthread_sigmask when SA upcalls aren't started yet.
+ *
+ * Written by Christian Limpach <cl@NetBSD.org>, December 2003.
+ * Public domain.
+ */
+
+#include <errno.h>
+#include <pthread.h>
+#include <signal.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include <sys/resource.h>
+
+#include <atf-c.h>
+
+#include "h_common.h"
+
+static volatile sig_atomic_t flag;
+static volatile sig_atomic_t flag2;
+
+static volatile pthread_t thr_usr1;
+static volatile pthread_t thr_usr2;
+
+static sig_atomic_t count = 0;
+
+ATF_TC(upcalls_not_started);
+ATF_TC_HEAD(upcalls_not_started, tc)
+{
+	atf_tc_set_md_var(tc, "descr", "Checks pthread_sigmask when SA upcalls "
+	    "aren't started yet");
+}
+ATF_TC_BODY(upcalls_not_started, tc)
+{
+	sigset_t nset;
+	struct rlimit rlim;
+
+	rlim.rlim_cur = rlim.rlim_max = 0;
+	(void) setrlimit(RLIMIT_CORE, &rlim);
+
+	sigemptyset(&nset);
+	sigaddset(&nset, SIGFPE);
+	pthread_sigmask(SIG_BLOCK, &nset, NULL);
+
+	kill(getpid(), SIGFPE);
+}
+
+static void
+upcalls_not_started_handler1(int sig, siginfo_t *info, void *ctx)
+{
+
+	kill(getpid(), SIGUSR2);
+	/*
+	 * If the mask is properly set, SIGUSR2 will not be handled
+	 * until this handler returns.
+	 */
+	flag = 1;
+}
+
+static void
+upcalls_not_started_handler2(int sig, siginfo_t *info, void *ctx)
+{
+	if (flag == 1)
+		flag = 2;
+}
+
+ATF_TC(before_threads);
+ATF_TC_HEAD(before_threads, tc)
+{
+	atf_tc_set_md_var(tc, "descr", "Checks that signal masks are respected "
+	    "before threads are started");
+}
+ATF_TC_BODY(before_threads, tc)
+{
+	struct sigaction act;
+
+	act.sa_sigaction = upcalls_not_started_handler1;
+	sigemptyset(&act.sa_mask);
+	sigaddset(&act.sa_mask, SIGUSR2);
+	act.sa_flags = SA_SIGINFO;
+
+	ATF_REQUIRE_EQ(sigaction(SIGUSR1, &act, NULL), 0);
+
+	act.sa_sigaction = upcalls_not_started_handler2;
+	sigemptyset(&act.sa_mask);
+	act.sa_flags = SA_SIGINFO;
+	(void)sigaction(SIGUSR2, &act, NULL);
+
+	kill(getpid(), SIGUSR1);
+
+	ATF_REQUIRE_EQ(flag, 2);
+	printf("Success: Both handlers ran in order\n");
+}
+
+static void
+respected_while_running_handler1(int sig, siginfo_t *info, void *ctx)
+{
+
+	kill(getpid(), SIGUSR2);
+	/*
+	 * If the mask is properly set, SIGUSR2 will not be handled
+	 * by the current thread until this handler returns.
+	 */
+	flag = 1;
+	thr_usr1 = pthread_self();
+}
+
+static void
+respected_while_running_handler2(int sig, siginfo_t *info, void *ctx)
+{
+	if (flag == 1)
+		flag = 2;
+	flag2 = 1;
+	thr_usr2 = pthread_self();
+}
+
+static void *
+respected_while_running_threadroutine(void *arg)
+{
+
+	kill(getpid(), SIGUSR1);
+	sleep(1);
+
+	if (flag == 2)
+		printf("Success: Both handlers ran in order\n");
+	else if (flag == 1 && flag2 == 1 && thr_usr1 != thr_usr2)
+		printf("Success: Handlers were invoked by different threads\n");
+	else {
+		printf("Failure: flag=%d, flag2=%d, thr1=%p, thr2=%p\n",
+			(int)flag, (int)flag2, (void *)thr_usr1, (void *)thr_usr2);
+		atf_tc_fail("failure");
+	}
+
+	return NULL;
+}
+
+ATF_TC(respected_while_running);
+ATF_TC_HEAD(respected_while_running, tc)
+{
+	atf_tc_set_md_var(tc, "descr", "Checks that signal masks are respected "
+	    "while threads are running");
+}
+ATF_TC_BODY(respected_while_running, tc)
+{
+	struct sigaction act;
+	pthread_t thread;
+
+	act.sa_sigaction = respected_while_running_handler1;
+	sigemptyset(&act.sa_mask);
+	sigaddset(&act.sa_mask, SIGUSR2);
+	act.sa_flags = SA_SIGINFO;
+
+	ATF_REQUIRE_EQ(sigaction(SIGUSR1, &act, NULL), 0);
+
+	act.sa_sigaction = respected_while_running_handler2;
+	sigemptyset(&act.sa_mask);
+	act.sa_flags = SA_SIGINFO;
+	(void)sigaction(SIGUSR2, &act, NULL);
+
+	PTHREAD_REQUIRE(pthread_create(&thread, NULL,
+	    respected_while_running_threadroutine, NULL));
+	PTHREAD_REQUIRE(pthread_join(thread, NULL));
+}
+
+static void
+incorrect_mask_bug_handler(int sig)
+{
+	count++;
+}
+
+static void *
+incorrect_mask_bug_sleeper(void* arg)
+{
+	int i;
+	for (i = 0; i < 10; i++)
+		sleep(1);
+
+	atf_tc_fail("sleeper");
+}
+
+ATF_TC(incorrect_mask_bug);
+ATF_TC_HEAD(incorrect_mask_bug, tc)
+{
+	atf_tc_set_md_var(tc, "descr", "Checks for bug in libpthread where "
+	    "incorrect signal mask was used");
+}
+ATF_TC_BODY(incorrect_mask_bug, tc)
+{
+	pthread_t id;
+	struct sigaction act;
+
+	act.sa_sigaction = NULL;
+	sigemptyset(&act.sa_mask);
+	act.sa_flags = 0;
+	act.sa_handler = incorrect_mask_bug_handler;
+
+	ATF_REQUIRE_EQ_MSG(sigaction(SIGALRM, &act, NULL), 0, "%s",
+	    strerror(errno));
+
+	sigaddset(&act.sa_mask, SIGALRM);
+	PTHREAD_REQUIRE(pthread_sigmask(SIG_SETMASK, &act.sa_mask, NULL));
+
+	PTHREAD_REQUIRE(pthread_create(&id, NULL, incorrect_mask_bug_sleeper,
+	    NULL));
+	sleep(1);
+
+	sigemptyset(&act.sa_mask);
+	PTHREAD_REQUIRE(pthread_sigmask(SIG_SETMASK, &act.sa_mask, NULL));
+
+	for (;;) {
+		alarm(1);
+		if (select(1, NULL, NULL, NULL, NULL) == -1 && errno == EINTR)
+			if (count == 2)
+				return;
+	}
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+	ATF_TP_ADD_TC(tp, upcalls_not_started);
+	ATF_TP_ADD_TC(tp, before_threads);
+	ATF_TP_ADD_TC(tp, respected_while_running);
+	ATF_TP_ADD_TC(tp, incorrect_mask_bug);
+
+	return atf_no_error();
+}