1 /* This testcase is part of GDB, the GNU debugger. 2 3 Copyright 2012-2023 Free Software Foundation, Inc. 4 5 This program is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 3 of the License, or 8 (at your option) any later version. 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 17 18 #include <stdlib.h> 19 #include <stdio.h> 20 #include <unistd.h> 21 #include <limits.h> 22 #include <string.h> 23 #include <pthread.h> 24 25 #define NUM_THREADS 1 26 27 static pthread_barrier_t barrier; 28 29 static void * 30 thread_start (void *arg) 31 { 32 pthread_barrier_wait (&barrier); 33 pthread_barrier_wait (&barrier); 34 pthread_barrier_wait (&barrier); 35 36 while (1) 37 sleep (1); 38 return NULL; 39 } 40 41 static void 42 all_started (void) 43 { 44 } 45 46 int 47 main (int argc, char ** argv) 48 { 49 char prog[PATH_MAX]; 50 pthread_t thread; 51 int len; 52 53 strcpy (prog, argv[0]); 54 len = strlen (prog); 55 /* Replace "multi-arch-exec" with "multi-arch-exec-hello". */ 56 memcpy (prog + len - 15, "multi-arch-exec-hello", 21); 57 prog[len + 6] = 0; 58 59 pthread_barrier_init (&barrier, NULL, NUM_THREADS + 1); 60 pthread_create (&thread, NULL, thread_start, NULL); 61 62 pthread_barrier_wait (&barrier); 63 all_started (); 64 65 /* Avoid races with GDB ptrace-resuming the threads and the exec: ensure 66 both threads were resumed by GDB before going into the exec. */ 67 pthread_barrier_wait (&barrier); 68 pthread_barrier_wait (&barrier); 69 70 execl (prog, 71 prog, 72 (char *) NULL); 73 perror ("execl failed"); 74 exit (1); 75 } 76