gdb/testsuite/gdb.dlang/watch-loc.c

   1 /* Copyright 2017-2020 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
  17 /* DWARF will describe these contents as being inside a D module.  */
  18
  19 typedef struct tstruct
  20 {
  21 } tstruct;
  22
  23 tstruct my_data;
  24
  25 int _Dmain (void)
  26 {
  27   asm ("_Dmain_label: .globl _Dmain_label");
  28   return 0;
  29 }
  30
  31 asm ("_Dmain_end: .globl _Dmain_end");
  32
  33 int
  34 main (void)
  35 {
  36   return _Dmain ();
  37 }
  38
  39 /* The .debug_names-based index support depends on .debug_aranges
  40    generated by GCC.  (.gdb_index includes a gdb-generated map
  41    instead.)  */
  42 asm (
  43 "       .pushsection    .debug_info,\"\",%progbits \n"
  44 ".Lcu1_begin:"
  45 "       .popsection \n"
  46 "       .pushsection    .debug_aranges,\"\",%progbits \n"
  47 "       .4byte  .Laranges_end - .Laranges_start \n"     // Length of Address Ranges Info
  48 ".Laranges_start: \n"
  49 "       .2byte  0x2 \n" // DWARF Version
  50 "       .4byte  .Lcu1_begin\n" // .Ldebug_info0 - Offset of Compilation Unit Info
  51 "       .byte   4 \n"   // Size of Address
  52 "       .byte   0 \n"   // Size of Segment Descriptor
  53 "       .2byte  0 \n"   // Pad to 16 byte boundary
  54 "       .2byte  0 \n"
  55 "       .4byte  _Dmain \n"      // Address
  56 "       .4byte  _Dmain_end - _Dmain \n" // Length
  57 "       .4byte  0 \n"
  58 "       .4byte  0 \n"
  59 ".Laranges_end: \n"
  60 "       .popsection \n"
  61 );