binutils/testsuite/binutils-all/dwo.s

   1 /* Assembler source used to create an object file for testing readelf's
   2    and objdump's ability to process separate dwarf object files.
   3
   4    Copyright (C) 2017-2018 Free Software Foundation, Inc.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  18
  19
  20         /* Create a .debug_str section for local use.  This is also to check
  21            the ability to dump the same section twice, if it exists in
  22            both the main file and the separate debug info file.  */
  23
  24         .section        .debug_str,"MS",%progbits,1
  25 string1:
  26         .asciz  "debugfile.dwo"
  27 string2:
  28         .asciz  "/path/to/dwo/files"
  29 string3:
  30         .asciz  "/another/path/"
  31         .balign 2
  32 string_end:
  33
  34         /* Create a .debug_info section that contains the dwo links.  */
  35
  36         .section        .debug_info,"",%progbits
  37         .4byte  debugE - debugS ;# Length of Compilation Unit Info
  38 debugS:
  39         .short  0x4     ;# DWARF version number.
  40         .4byte  0x0     ;# Offset into .debug_abbrev section.
  41         .byte   0x4     ;# Pointer Size (in bytes).
  42
  43         .uleb128 0x1    ;# Use abbrev #1.  This needs strings from the .debug_str section.
  44         .4byte  string1
  45         .4byte  string2
  46
  47         .uleb128 0x2    ;# Use abbrev #2.
  48         .asciz   "file.dwo"
  49         .4byte   string3
  50         .8byte   0x12345678aabbccdd
  51
  52         ;# Minimal section alignment on alpha-* is 2, so ensure no new invalid CU
  53         ;# will be started.
  54         .balign 2, 0
  55 debugE:
  56
  57         .section        .debug_abbrev,"",%progbits
  58
  59         /* Create an abbrev containing a DWARF5 style dwo link.  */
  60         .uleb128 0x01   ;# Abbrev code.
  61         .uleb128 0x11   ;# DW_TAG_compile_unit
  62         .byte    0x00   ;# DW_children_no
  63         .uleb128 0x76   ;# DW_AT_dwo_name
  64         .uleb128 0x0e   ;# DW_FORM_strp
  65         .uleb128 0x1b   ;# DW_AT_comp_dir
  66         .uleb128 0x0e   ;# DW_FORM_strp
  67         .byte    0x00   ;# End of abbrev
  68         .byte    0x00
  69
  70         /* Create an abbrev containing a GNU style dwo link.  */
  71         .uleb128 0x02   ;# Abbrev code.
  72         .uleb128 0x11   ;# DW_TAG_compile_unit
  73         .byte    0x00   ;# DW_children_no
  74         .uleb128 0x2130 ;# DW_AT_GNU_dwo_name
  75         .uleb128 0x08   ;# DW_FORM_string
  76         .uleb128 0x1b   ;# DW_AT_comp_dir
  77         .uleb128 0x0e   ;# DW_FORM_strp
  78         .uleb128 0x2131 ;# DW_AT_GNU_dwo_id
  79         .uleb128 0x07   ;# DW_FORM_data8
  80         .byte    0x00   ;# End of abbrev
  81         .byte    0x00
  82
  83         .byte    0x0    ;# Abbrevs terminator
  84