gdb/testsuite/gdb.trace/unavailable-dwarf-piece.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2013-2024 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 struct s
  19 {
  20   unsigned char a;
  21   unsigned char b;
  22   unsigned char c;
  23 };
  24
  25 struct t
  26 {
  27   /* First, a complete byte.  */
  28   unsigned char a;
  29   /* Next, 8 single bits.  */
  30   unsigned char b : 1;
  31   unsigned char c : 1;
  32   unsigned char d : 1;
  33   unsigned char e : 1;
  34   unsigned char f : 1;
  35   unsigned char g : 1;
  36   unsigned char h : 1;
  37   unsigned char i : 1;
  38   /* Now another byte.  */
  39   unsigned char j;
  40 };
  41
  42 void
  43 end (void)
  44 {
  45   /* Nothing.  */
  46 }
  47
  48 void
  49 dummy (void)
  50 {
  51   /* Nothing.  */
  52 }
  53
  54 int
  55 foo (struct s x, struct s y, struct s z)
  56 {
  57   asm (".global foo_start_lbl\nfoo_start_lbl:");
  58   dummy ();
  59   asm (".global foo_end_lbl\nfoo_end_lbl:");
  60   return 0;
  61 }
  62
  63 int
  64 bar (struct t x, struct t y, struct t z)
  65 {
  66   asm (".global bar_start_lbl\nbar_start_lbl:");
  67   dummy ();
  68   asm (".global bar_end_lbl\nbar_end_lbl:");
  69   return 0;
  70 }
  71
  72 int
  73 main (void)
  74 {
  75   struct s v = { 0, 1, 2 };
  76   struct t w = { 5, 0, 1, 0, 1, 0, 1, 0, 1, 7 };
  77   int ans;
  78
  79   ans = foo (v, v, v);
  80
  81   end ();
  82
  83   ans = bar (w, w, w);
  84
  85   end ();
  86
  87   return ans;
  88 }