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nptl: Add tst-minstack-cancel, tst-minstack-exit [BZ #22636]

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I verified that without the guard accounting change in commit
630f4cc3aa (Fix stack guard size
accounting) and RTLD_NOW for libgcc_s introduced by commit
f993b87540 (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>
This commit is contained in:
Florian Weimer 2018-01-11 13:13:14 +01:00
parent b303185df9
commit d8b778907e
4 changed files with 101 additions and 1 deletions
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6
ChangeLog
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@ -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 Joseph Myers <joseph@codesourcery.com>
[BZ #22693]

2
nptl/Makefile
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@ -307,7 +307,7 @@ tests = tst-attr1 tst-attr2 tst-attr3 tst-default-attr \
tst-bad-schedattr \
tst-thread_local1 tst-mutex-errorcheck tst-robust10 \
tst-robust-fork tst-create-detached tst-memstream \
tst-thread-exit-clobber
tst-thread-exit-clobber tst-minstack-cancel tst-minstack-exit
tests-internal := tst-rwlock19 tst-rwlock20 \
tst-sem11 tst-sem12 tst-sem13 \

48
nptl/tst-minstack-cancel.c Normal file
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@ -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>

46
nptl/tst-minstack-exit.c Normal file
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@ -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>