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76 lines
1.6 KiB
C
76 lines
1.6 KiB
C
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2016-2018 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <pthread.h>
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#include <unistd.h>
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#include <stdlib.h>
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#define NUM_THREADS 20
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const int num_threads = NUM_THREADS;
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static pthread_t child_thread[NUM_THREADS];
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static pthread_barrier_t threads_started_barrier;
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volatile int always_zero;
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volatile unsigned int dummy;
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static void
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infinite_loop (void)
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{
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while (1)
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{
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dummy++; /* set breakpoint here */
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}
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}
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static void *
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child_function (void *arg)
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{
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pthread_barrier_wait (&threads_started_barrier);
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infinite_loop ();
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}
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void
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all_started (void)
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{
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}
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int
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main (void)
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{
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int res;
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int i;
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alarm (300);
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pthread_barrier_init (&threads_started_barrier, NULL, NUM_THREADS + 1);
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for (i = 0; i < NUM_THREADS; i++)
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{
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res = pthread_create (&child_thread[i], NULL, child_function, NULL);
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}
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/* Wait until all threads have been scheduled. */
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pthread_barrier_wait (&threads_started_barrier);
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all_started ();
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infinite_loop ();
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}
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