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re PR libstdc++/33394 (Add test case for Thread race segfault in std::string::append with -O and -s)

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PR libstdc++/33394
	* testsuite/21_strings/basic_string/pthread33394.cc: Add test.

# Auto-generated commit message above this line, original below.
	PR libstdc++/33394
	* testsuite/21_strings/basic_string/pthread33394.cc: Add test.

From-SVN: r221635
This commit is contained in:
Jonathan Wakely 2015-03-24 14:47:32 +00:00 committed by Jonathan Wakely
parent eaed2a2c96
commit 9ccd0dba21
2 changed files with 54 additions and 0 deletions
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libstdc++-v3/ChangeLog
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2015-03-24 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/33394
* testsuite/21_strings/basic_string/pthread33394.cc: Add test.
2015-03-23 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/64967

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libstdc++-v3/testsuite/21_strings/basic_string/pthread33394.cc Normal file
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// Copyright (C) 2015 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This 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 General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// { dg-do run { target *-*-freebsd* *-*-dragonfly* *-*-netbsd* *-*-linux* *-*-gnu* *-*-solaris* *-*-cygwin *-*-darwin* } }
// { dg-options "-pthread" { target *-*-freebsd* *-*-dragonfly* *-*-netbsd* *-*-linux* *-*-gnu* *-*-solaris* } }
// { dg-options "-DITERATIONS=1000" { target simulator } }
#ifndef ITERATIONS
#define ITERATIONS 50000
#endif
// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=32261
#include <pthread.h>
#include <string>
extern "C" void* thread_function(void*) {
for (int k = 0; k < ITERATIONS; k++) {
std::string my_str;
my_str += "foo";
}
return 0;
}
int main()
{
pthread_t thread1, thread2;
pthread_create(&thread1, NULL, thread_function, NULL);
pthread_create(&thread2, NULL, thread_function, NULL);
void* exitcode;
pthread_join(thread1, &exitcode);
pthread_join(thread2, &exitcode);
}