97 lines
2.1 KiB
C
97 lines
2.1 KiB
C
/* This testcase is part of GDB, the GNU debugger.
|
|
|
|
Copyright 2014-2016 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 <unistd.h>
|
|
#include <stdlib.h>
|
|
#include <signal.h>
|
|
|
|
#define NUM_THREADS 10
|
|
const int num_threads = NUM_THREADS;
|
|
/* Allow for as much timeout as DejaGnu wants, plus a bit of
|
|
slack. */
|
|
|
|
volatile unsigned int timeout = TIMEOUT;
|
|
#define SECONDS (timeout + 20)
|
|
|
|
pthread_t child_thread[NUM_THREADS];
|
|
volatile pthread_t signal_thread;
|
|
volatile int got_sig;
|
|
|
|
void
|
|
handler (int signo)
|
|
{
|
|
got_sig = 1;
|
|
}
|
|
|
|
void
|
|
loop_broke (void)
|
|
{
|
|
}
|
|
|
|
#define INF_LOOP \
|
|
do \
|
|
{ \
|
|
while (!got_sig) \
|
|
; \
|
|
} \
|
|
while (0)
|
|
|
|
void *
|
|
child_function (void *arg)
|
|
{
|
|
pthread_t self = pthread_self ();
|
|
|
|
while (1)
|
|
{
|
|
/* Reset the timer before going to INF_LOOP. */
|
|
alarm (SECONDS);
|
|
INF_LOOP; /* set thread breakpoint here */
|
|
loop_broke ();
|
|
}
|
|
}
|
|
|
|
int
|
|
main (void)
|
|
{
|
|
int res;
|
|
int i;
|
|
|
|
/* Call these early so that we're sure their PLTs are quickly
|
|
resolved now, instead of in the busy threads. */
|
|
pthread_kill (pthread_self (), 0);
|
|
alarm (0);
|
|
|
|
signal (SIGUSR1, handler);
|
|
|
|
for (i = 0; i < NUM_THREADS; i++)
|
|
{
|
|
res = pthread_create (&child_thread[i], NULL, child_function, NULL);
|
|
}
|
|
|
|
while (1)
|
|
{
|
|
pthread_kill (signal_thread, SIGUSR1); /* set kill breakpoint here */
|
|
/* Reset the timer before going to INF_LOOP. */
|
|
alarm (SECONDS);
|
|
INF_LOOP;
|
|
loop_broke ();
|
|
}
|
|
|
|
exit(EXIT_SUCCESS);
|
|
}
|