From: Aurelien Jarno <aurelien@aurel32.net>
To: libc-stable@sourceware.org
Cc: Florian Weimer <fweimer@redhat.com>
Subject: [2.24 COMMITTED 3/5] nptl: Add tst-minstack-cancel, tst-minstack-exit [BZ #22636]
Date: Mon, 01 Jan 2018 00:00:00 -0000 [thread overview]
Message-ID: <20181228222540.18325-3-aurelien@aurel32.net> (raw)
In-Reply-To: <20181228222540.18325-1-aurelien@aurel32.net>
From: Florian Weimer <fweimer@redhat.com>
I verified that without the guard accounting change in commit
630f4cc3aa019ede55976ea561f1a7af2f068639 (Fix stack guard size
accounting) and RTLD_NOW for libgcc_s introduced by commit
f993b8754080ac7572b692870e926d8b493db16c (nptl: Open libgcc.so with
RTLD_NOW during pthread_cancel), the tst-minstack-cancel test fails on
an AVX-512F machine. tst-minstack-exit still passes, and either of
the mentioned commit by itself frees sufficient stack space to make
tst-minstack-cancel pass, too.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
(cherry picked from commit d8b778907e5270fdeb70459842ffbc20bd2ca5e1)
---
ChangeLog | 6 +++++
nptl/Makefile | 4 +++-
nptl/tst-minstack-cancel.c | 48 ++++++++++++++++++++++++++++++++++++++
nptl/tst-minstack-exit.c | 46 ++++++++++++++++++++++++++++++++++++
4 files changed, 103 insertions(+), 1 deletion(-)
create mode 100644 nptl/tst-minstack-cancel.c
create mode 100644 nptl/tst-minstack-exit.c
diff --git a/ChangeLog b/ChangeLog
index 48292d6bf0..1062e4fa59 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2018-01-11 Florian Weimer <fweimer@redhat.com>
+
+ [BZ #22636]
+ * nptl/Makefile (tests): Add tst-minstack-cancel, tst-minstack-exit.
+ * nptl/tst-minstack-cancel.c, nptl/tst-minstack-exit.c: New files.
+
2018-01-10 Florian Weimer <fweimer@redhat.com>
[BZ #22636]
diff --git a/nptl/Makefile b/nptl/Makefile
index fa925819ca..1aa52afd71 100644
--- a/nptl/Makefile
+++ b/nptl/Makefile
@@ -290,7 +290,9 @@ tests = tst-typesizes \
tst-initializers1 $(addprefix tst-initializers1-,\
c89 gnu89 c99 gnu99 c11 gnu11) \
tst-bad-schedattr \
- tst-thread_local1 tst-mutex-errorcheck tst-robust10
+ tst-thread_local1 tst-mutex-errorcheck tst-robust10 \
+ tst-minstack-cancel tst-minstack-exit
+
xtests = tst-setuid1 tst-setuid1-static tst-setuid2 \
tst-mutexpp1 tst-mutexpp6 tst-mutexpp10
test-srcs = tst-oddstacklimit
diff --git a/nptl/tst-minstack-cancel.c b/nptl/tst-minstack-cancel.c
new file mode 100644
index 0000000000..a306320e88
--- /dev/null
+++ b/nptl/tst-minstack-cancel.c
@@ -0,0 +1,48 @@
+/* Test cancellation with a minimal stack size.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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, see
+ <http://www.gnu.org/licenses/>. */
+
+/* Note: This test is similar to tst-minstack-exit, but is separate to
+ avoid spurious test passes due to warm-up effects. */
+
+#include <limits.h>
+#include <unistd.h>
+#include <support/check.h>
+#include <support/xthread.h>
+
+static void *
+threadfunc (void *closure)
+{
+ while (1)
+ pause ();
+ return NULL;
+}
+
+static int
+do_test (void)
+{
+ pthread_attr_t attr;
+ xpthread_attr_init (&attr);
+ xpthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN);
+ pthread_t thr = xpthread_create (&attr, threadfunc, NULL);
+ xpthread_cancel (thr);
+ TEST_VERIFY (xpthread_join (thr) == PTHREAD_CANCELED);
+ xpthread_attr_destroy (&attr);
+ return 0;
+}
+
+#include <support/test-driver.c>
diff --git a/nptl/tst-minstack-exit.c b/nptl/tst-minstack-exit.c
new file mode 100644
index 0000000000..9c7e9a4dfe
--- /dev/null
+++ b/nptl/tst-minstack-exit.c
@@ -0,0 +1,46 @@
+/* Test that pthread_exit works with the minimum stack size.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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, see
+ <http://www.gnu.org/licenses/>. */
+
+/* Note: This test is similar to tst-minstack-cancel, but is separate
+ to avoid spurious test passes due to warm-up effects. */
+
+#include <limits.h>
+#include <unistd.h>
+#include <support/check.h>
+#include <support/xthread.h>
+
+static void *
+threadfunc (void *closure)
+{
+ pthread_exit (threadfunc);
+ return NULL;
+}
+
+static int
+do_test (void)
+{
+ pthread_attr_t attr;
+ xpthread_attr_init (&attr);
+ xpthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN);
+ pthread_t thr = xpthread_create (&attr, threadfunc, NULL);
+ TEST_VERIFY (xpthread_join (thr) == threadfunc);
+ xpthread_attr_destroy (&attr);
+ return 0;
+}
+
+#include <support/test-driver.c>
--
2.19.2
next prev parent reply other threads:[~2018-12-28 22:26 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-01 0:00 [2.24 COMMITTED 1/5] [BZ #22637] Fix stack guard size accounting Aurelien Jarno
2018-01-01 0:00 ` [2.24 COMMITTED 5/5] csu: Update __libgcc_s_init comment Aurelien Jarno
2018-01-01 0:00 ` Aurelien Jarno [this message]
2018-01-01 0:00 ` [2.24 COMMITTED 4/5] nptl/tst-minstack-throw: Compile in C++11 mode with GNU extensions Aurelien Jarno
2018-01-01 0:00 ` [2.24 COMMITTED 2/5] nptl: Open libgcc.so with RTLD_NOW during pthread_cancel [BZ #22636] Aurelien Jarno
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