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3666a04883
This commits the result of running gdb/copyright.py as per our Start
of New Year procedure...
gdb/ChangeLog
Update copyright year range in copyright header of all GDB files.
131 lines
2.8 KiB
C
131 lines
2.8 KiB
C
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2016-2021 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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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <assert.h>
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#include <errno.h>
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#include <string.h>
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/* This barrier ensures we only reach the initial breakpoint after all
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threads have started. */
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pthread_barrier_t start_threads_barrier;
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/* Many threads in order to be fairly sure the process exits while GDB
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is detaching from each thread in the process, on targets that need
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to detach from each thread individually. */
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#define NTHREADS 256
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/* GDB sets a watchpoint here. */
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int globalvar = 1;
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/* GDB reads this. */
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int mypid;
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/* Threads' entry point. */
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void *
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thread_function (void *arg)
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{
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pthread_barrier_wait (&start_threads_barrier);
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_exit (0);
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}
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/* The fork child's entry point. */
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void
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child_function (void)
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{
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pthread_t threads[NTHREADS];
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int i;
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pthread_barrier_init (&start_threads_barrier, NULL, NTHREADS + 1);
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for (i = 0; i < NTHREADS; i++)
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pthread_create (&threads[i], NULL, thread_function, NULL);
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pthread_barrier_wait (&start_threads_barrier);
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exit (0);
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}
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/* This is defined by the .exp file if testing the multi-process
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variant. */
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#ifdef MULTIPROCESS
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/* The fork parent's entry point. */
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void
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parent_function (pid_t child)
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{
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int status, ret;
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alarm (300);
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ret = waitpid (child, &status, 0);
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if (ret == -1)
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{
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printf ("waitpid, errno=%d (%s)\n", errno, strerror (errno));
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exit (1);
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}
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else if (WIFEXITED (status))
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{
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printf ("exited, status=%d\n", WEXITSTATUS (status));
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exit (0);
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}
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else if (WIFSIGNALED (status))
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{
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printf ("signaled, sig=%d\n", WTERMSIG (status));
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exit (2);
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}
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else
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{
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printf ("unexpected, status=%x\n", status);
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exit (3);
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}
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}
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#endif
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int
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main (void)
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{
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#ifdef MULTIPROCESS
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pid_t child;
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child = fork ();
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if (child == -1)
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return 1;
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#endif
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mypid = getpid ();
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#ifdef MULTIPROCESS
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if (child != 0)
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parent_function (child);
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else
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#endif
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child_function ();
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/* Not reached. */
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abort ();
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}
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