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nptl: Add PTHREAD_MIN_STACK C++ throw test [BZ #22636]

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(cherry picked from commit 860b0240a5)
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Florian Weimer 2018-01-15 15:30:00 +01:00
parent 41acd32eb7
commit ea2da72230
3 changed files with 100 additions and 2 deletions
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8
ChangeLog
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@ -1,3 +1,11 @@
2018-01-15 Florian Weimer <fweimer@redhat.com>
[BZ #22636]
* nptl/tst-minstack-throw.cc: New file.
* nptl/Makefile (tests): Add tst-minstack-throw.
(LDLIBS-tst-minstack-throw): Link with libstdc++.
[!CXX] (tests-unsupported): Add tst-minstack-throw.
2018-01-11 Florian Weimer <fweimer@redhat.com>
[BZ #22636]

7
nptl/Makefile
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@ -221,6 +221,7 @@ CFLAGS-tst-thread_local1.o = -std=gnu++11
LDLIBS-tst-thread_local1 = -lstdc++
CFLAGS-tst-thread-exit-clobber.o = -std=gnu++11
LDLIBS-tst-thread-exit-clobber = -lstdc++
LDLIBS-tst-minstack-throw = -lstdc++
tests = tst-typesizes \
tst-attr1 tst-attr2 tst-attr3 tst-default-attr \
@ -300,7 +301,8 @@ tests = tst-typesizes \
tst-bad-schedattr \
tst-thread_local1 tst-mutex-errorcheck tst-robust10 \
tst-robust-fork tst-create-detached \
tst-thread-exit-clobber tst-minstack-cancel tst-minstack-exit
tst-thread-exit-clobber tst-minstack-cancel tst-minstack-exit \
tst-minstack-throw
xtests = tst-setuid1 tst-setuid1-static tst-setuid2 \
tst-mutexpp1 tst-mutexpp6 tst-mutexpp10
@ -445,7 +447,8 @@ endif
ifeq (,$(CXX))
# These tests require a C++ compiler and runtime.
tests-unsupported += tst-cancel24 tst-cancel24-static tst-once5
tests-unsupported += tst-cancel24 tst-cancel24-static tst-once5 \
tst-minstack-throw
endif
# These tests require a C++ compiler and runtime with thread_local support.
ifneq ($(have-cxx-thread_local),yes)

87
nptl/tst-minstack-throw.cc Normal file
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@ -0,0 +1,87 @@
/* Test that throwing C++ exceptions 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/>. */
#include <stdexcept>
#include <limits.h>
#include <string.h>
#include <support/check.h>
#include <support/xthread.h>
/* Throw a std::runtime_exception. */
__attribute__ ((noinline, noclone, weak))
void
do_throw_exception ()
{
throw std::runtime_error ("test exception");
}
/* Class with a destructor, to trigger unwind handling. */
struct class_with_destructor
{
class_with_destructor ();
~class_with_destructor ();
};
__attribute__ ((noinline, noclone, weak))
class_with_destructor::class_with_destructor ()
{
}
__attribute__ ((noinline, noclone, weak))
class_with_destructor::~class_with_destructor ()
{
}
__attribute__ ((noinline, noclone, weak))
void
function_with_destructed_object ()
{
class_with_destructor obj;
do_throw_exception ();
}
static void *
threadfunc (void *closure)
{
try
{
function_with_destructed_object ();
FAIL_EXIT1 ("no exception thrown");
}
catch (std::exception &e)
{
TEST_COMPARE (strcmp (e.what (), "test exception"), 0);
return reinterpret_cast<void *> (threadfunc);
}
FAIL_EXIT1 ("no exception caught");
}
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>