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/* This testcase is part of GDB, the GNU debugger.
Copyright 2023-2024 Free Software Foundation, Inc.
This program 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 of the License, or
(at your option) any later version.
This program 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 program. If not, see <http://www.gnu.org/licenses/>. */
#include <pthread.h>
#include <assert.h>
#include <unistd.h>
/* Set to 0 by GDB to cause the inferior to drop out of a spin loop. */
volatile int spin = 1;
/* Set by the inferior to communicate to GDB what stage of the test we are
in. Initially 0, but set to 1 once a new thread has been created. Then
set to 2 once the extra thread has exited. */
volatile int stage = 0;
/* New thread worker function. Just spins until GDB tells it to exit. */
void *
thread_func (void *arg)
{
assert (arg == NULL);
stage = 1;
while (spin)
sleep (1);
return NULL;
}
/* Somewhere to place a breakpoint. */
void
breakpt ()
{
/* Nothing. */
}
/* Create a new test that spins until GDB tells it to exit. Then, once the
new thread has exited, this thread spins until GDB tells us to exit. */
int
main ()
{
alarm (600);
breakpt ();
pthread_t thr;
int res;
res = pthread_create (&thr, NULL, thread_func, NULL);
assert (res == 0);
void *retval;
res = pthread_join (thr, &retval);
assert (res == 0);
spin = 1;
stage = 2;
while (spin)
sleep (1);
breakpt ();
return 0;
}
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