1  /*
       2   * Check status=detached filtering when a non-leader thread invokes execve.
       3   *
       4   * Copyright (c) 2019 Paul Chaignon <paul.chaignon@gmail.com>
       5   * Copyright (c) 2022 Dmitry V. Levin <ldv@strace.io>
       6   * All rights reserved.
       7   *
       8   * SPDX-License-Identifier: GPL-2.0-or-later
       9   */
      10  
      11  #include "tests.h"
      12  #include "scno.h"
      13  
      14  #include <errno.h>
      15  #include <pthread.h>
      16  #include <stdio.h>
      17  #include <time.h>
      18  #include <unistd.h>
      19  
      20  static void *
      21  thread(void *arg)
      22  {
      23  	struct timespec ts = { .tv_nsec = 100000000 };
      24  	nanosleep(&ts, 0);
      25  
      26  	char *argv[] = {((char **) arg)[0], (char *) "0", NULL};
      27  	pid_t pid = getpid();
      28  	pid_t tid = syscall(__NR_gettid);
      29  
      30  	printf("%-5d execve(\"%s\", [\"%s\", \"0\"], NULL <pid changed to %u ...>\n"
      31  	       "%-5d +++ superseded by execve in pid %u +++\n"
      32  	       "%-5d +++ exited with 0 +++\n",
      33  	       tid, argv[0], argv[0], pid, pid, tid, pid);
      34  
      35  	execve(argv[0], argv, NULL);
      36  	perror_msg_and_fail("execve");
      37  }
      38  
      39  int
      40  main(int ac, char **av)
      41  {
      42  	setvbuf(stdout, NULL, _IONBF, 0);
      43  
      44  	if (ac > 1)
      45  		return 0;
      46  
      47  	pthread_t t;
      48  	errno = pthread_create(&t, NULL, thread, av);
      49  	if (errno)
      50  		perror_msg_and_fail("pthread_create");
      51  
      52  	struct timespec ts = { .tv_sec = 123 };
      53  	nanosleep(&ts, 0);
      54  
      55  	return 1;
      56  }