gdb/testsuite/gdb.base/foll-exec-mode.c

   1 /* This test program is part of GDB, the GNU debugger.
   2
   3    Copyright 2015-2019 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 <stdio.h>
  19 #include <stdlib.h>
  20 #include <unistd.h>
  21 #include <string.h>
  22 #include <limits.h>
  23
  24 int global_i = 100;
  25
  26 int main (int argc, char ** argv)
  27 {
  28   int local_j = global_i + 1;
  29   int local_k = local_j + 1;
  30   char prog[PATH_MAX];
  31   int len;
  32
  33   strcpy (prog, argv[0]);
  34   len = strlen (prog);
  35   /* Replace "foll-exec-mode" with "execd-prog".  */
  36   memcpy (prog + len - 14, "execd-prog", 10);
  37   prog[len - 4] = 0;
  38
  39   printf ("foll-exec is about to execlp(execd-prog)...\n");
  40
  41   execlp (prog,     /* Set breakpoint here.  */
  42           "/execd-prog",
  43           "execlp arg1 from foll-exec",
  44           (char *) 0);
  45 }