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4a94e36819
This commit brings all the changes made by running gdb/copyright.py as per GDB's Start of New Year Procedure. For the avoidance of doubt, all changes in this commits were performed by the script.
91 lines
2.2 KiB
C
91 lines
2.2 KiB
C
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2020-2022 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 <unistd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <pthread.h>
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#include "../lib/my-syscalls.h"
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#if (!defined(LEADER_DOES_EXEC) && !defined(OTHER_DOES_EXEC) \
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|| defined(LEADER_DOES_EXEC) && defined(OTHER_DOES_EXEC))
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# error "Exactly one of LEADER_DOES_EXEC and OTHER_DOES_EXEC must be defined."
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#endif
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static char *argv0;
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static pthread_barrier_t barrier;
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static void
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do_the_exec (void)
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{
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char *execd_path = (char *) malloc (strlen (argv0) + sizeof ("-execd"));
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sprintf (execd_path, "%s-execd", argv0);
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char *argv[] = { execd_path, NULL };
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printf ("Exec-ing %s\n", execd_path);
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extern char **environ;
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my_execve (execd_path, argv, environ);
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printf ("Exec failed :(\n");
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abort ();
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}
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static void *
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thread_func (void *arg)
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{
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pthread_barrier_wait (&barrier);
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#ifdef OTHER_DOES_EXEC
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printf ("Other going in exec.\n");
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do_the_exec ();
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#endif
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/* Just make sure the thread does not exit when the leader does the exec. */
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pthread_barrier_wait (&barrier);
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return NULL;
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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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argv0 = argv[0];
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int ret = pthread_barrier_init (&barrier, NULL, 2);
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if (ret != 0)
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abort ();
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pthread_t thread;
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ret = pthread_create (&thread, NULL, thread_func, argv[0]);
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if (ret != 0)
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abort ();
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pthread_barrier_wait (&barrier);
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#ifdef LEADER_DOES_EXEC
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printf ("Leader going in exec.\n");
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do_the_exec ();
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#endif
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pthread_join (thread, NULL);
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return 0;
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}
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