67 lines
1.4 KiB
C
67 lines
1.4 KiB
C
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/* This testcase is part of GDB, the GNU debugger.
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Copyright 2019 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 <stdio.h>
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#include <unistd.h>
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#include <pthread.h>
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#include <string.h>
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#include <stdlib.h>
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static char *program_name;
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static void *
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f (void *arg)
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{
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int res = vfork ();
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if (res == -1)
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{
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perror ("vfork");
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return NULL;
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}
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else if (res == 0)
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{
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/* Child. */
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execl (program_name, program_name, "1", NULL);
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perror ("exec");
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abort ();
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}
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else
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{
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/* Parent. */
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return NULL;
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}
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}
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int
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main (int argc, char **argv)
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{
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pthread_t tid;
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if (argc > 1)
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{
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/* Getting here via execl. */
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return 0;
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}
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program_name = argv[0];
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pthread_create (&tid, NULL, f, NULL);
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pthread_join (tid, NULL);
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return 0;
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}
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