gdb/testsuite/gdb.base/pie-execl.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2010-2022 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 <unistd.h>
  20 #include <assert.h>
  21
  22 static void pie_execl_marker (void);
  23
  24 int
  25 main (int argc, char **argv)
  26 {
  27   setbuf (stdout, NULL);
  28
  29 #if BIN == 1
  30   if (argc == 2)
  31     {
  32       printf ("pie-execl: re-exec: %s\n", argv[1]);
  33       execl (argv[1], argv[1], NULL);
  34       assert (0);
  35     }
  36 #endif
  37
  38   pie_execl_marker ();
  39
  40   return 0;
  41 }
  42
  43 /* pie_execl_marker must be on a different address than in `pie-execl2.c'.  */
  44
  45 volatile int v;
  46
  47 static void
  48 pie_execl_marker (void)
  49 {
  50   v = 1;
  51 }