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/* Test that throwing C++ exceptions works with the minimum stack size.
Copyright (C) 2018-2024 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
<https://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>
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