gdb/testsuite/gdb.dwarf2/dw2-unresolved-main.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2009-2013 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
  20 asm (".globl cu_text_start");
  21 asm ("cu_text_start:");
  22
  23 int
  24 main (void)
  25 {
  26   unsigned char var = 1;
  27
  28   if (var != 1)
  29     abort ();
  30   {
  31     extern unsigned char var;
  32
  33     /* Do not rely on the `extern' DIE output by GCC (GCC PR debug/39563).  */
  34 asm (".globl extern_block_start");
  35 asm ("extern_block_start:");
  36     if (var != 2)
  37       abort ();
  38 asm (".globl extern_block_end");
  39 asm ("extern_block_end:");
  40   }
  41
  42   return 0;
  43 }
  44
  45 asm (".globl cu_text_end");
  46 asm ("cu_text_end:");