gdb/testsuite/gdb.base/rtld-step-rtld.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2022-2024 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 <unistd.h>
  19
  20 /* The declarations below are needed if you try to make this test case
  21    work on FreeBSD.  They're disabled because there are other problems
  22    with this test on FreeBSD.  See the .exp file for more info.  If
  23    those other problems can be resolved, it may be worth reenabling
  24    these declarations.  */
  25 #if 0
  26 __attribute__((weak))
  27 char *__progname = "fake-rtld";
  28
  29 __attribute__((weak))
  30 char **environ = 0;
  31 #endif
  32
  33 void
  34 baz (int i)
  35 {
  36 }
  37
  38 void
  39 foo (int a)
  40 {
  41   baz (a);
  42 }
  43
  44 void
  45 bar ()
  46 {
  47   foo (1);
  48   baz (99);
  49   foo (2);
  50 }
  51
  52 int
  53 main ()
  54 {
  55   foo (0);
  56   bar ();
  57   return 0;
  58 }
  59
  60 void
  61 _start ()
  62 {
  63   main ();
  64   _exit (0);
  65 }