gdb/testsuite/gdb.dwarf2/dw2-entry-points.c

   1 /* Copyright 2023-2024 Free Software Foundation, Inc.
   2
   3    This program is free software; you can redistribute it and/or modify
   4    it under the terms of the GNU General Public License as published by
   5    the Free Software Foundation; either version 3 of the License, or
   6    (at your option) any later version.
   7
   8    This program is distributed in the hope that it will be useful,
   9    but WITHOUT ANY WARRANTY; without even the implied warranty of
  10    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11    GNU General Public License for more details.
  12
  13    You should have received a copy of the GNU General Public License
  14    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  15
  16 /* In the generated DWARF, we'll use the locations of foo_entry_label and
  17    foobar_entry_label as the low_pc's of our entry point TAGs.  */
  18
  19 int I = 0;
  20 int J = 0;
  21 int K = 0;
  22
  23 __attribute__ ((noinline))
  24 void
  25 bar_helper (void)
  26 {
  27   asm ("bar_helper_label: .globl bar_helper_label");
  28   I++;
  29   J++;
  30   asm ("foo_entry_label: .globl foo_entry_label");
  31   J++;
  32   K++;
  33   asm ("foobar_entry_label: .globl foobar_entry_label");
  34 }
  35
  36 int
  37 main (void)
  38 {
  39   asm ("main_label: .globl main_label");
  40   bar_helper ();
  41
  42   return 0;
  43 }