gdb/testsuite/gdb.dwarf2/dw2-const.S

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2010-2015 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 /* Dummy function to provide debug information for.  */
  19
  20         .text
  21 .Lbegin_text1:
  22         .globl func_cu1
  23         .type func_cu1, %function
  24 func_cu1:
  25 .Lbegin_func_cu1:
  26         .int 0
  27 .Lend_func_cu1:
  28         .size func_cu1, .-func_cu1
  29 .Lend_text1:
  30
  31 /* Debug information */
  32
  33         .section .debug_info
  34 .Lcu1_begin:
  35         /* CU header */
  36         .4byte  .Lcu1_end - .Lcu1_start         /* Length of Compilation Unit */
  37 .Lcu1_start:
  38         .2byte  2                               /* DWARF Version */
  39         .4byte  .Labbrev1_begin                 /* Offset into abbrev section */
  40         .byte   8                               /* Pointer size */
  41
  42         /* CU die */
  43         .uleb128 1                              /* Abbrev: DW_TAG_compile_unit */
  44         .4byte  .Lline1_begin                   /* DW_AT_stmt_list */
  45         .ascii  "file1.txt\0"                   /* DW_AT_name */
  46         .ascii  "GNU C 3.3.3\0"                 /* DW_AT_producer */
  47         .byte   1                               /* DW_AT_language (C) */
  48
  49         .uleb128        0x8                     /* Abbrev: DW_TAG_constant */
  50         .ascii          "twelve\0"              /* DW_AT_name */
  51         .4byte          .Ltype_const-.Lcu1_begin   /* DW_AT_type */
  52         .byte           0xc                     /* DW_AT_const_value */
  53
  54 .Ltype_const:
  55         .uleb128        0x9                     /* Abbrev: DW_TAG_const_type */
  56         .4byte           .Ltype_int-.Lcu1_begin /* DW_AT_type */
  57
  58         .uleb128        0xa                     /* Abbrev: DW_TAG_variable */
  59         .ascii          "val8\0"                /* DW_AT_name */
  60         .4byte          .Ltype_const8-.Lcu1_begin   /* DW_AT_type */
  61         .byte           2f - 1f                 /* DW_AT_location */
  62 1:      .byte           0x11                    /* DW_OP_consts */
  63 #if 0 /* gas encodes it explicitly.  */
  64         .slab128        0xffffffff00000000
  65 #endif
  66 #if 0 /* gas encoded it correctly - formed GDB FAILed.  */
  67         .sleb128        -4294967296
  68 #endif
  69 #if 1 /* Rather encode sleb128 by hand.  */
  70         .byte           0x80, 0x80, 0x80, 0x80, 0x70
  71 #endif
  72         .byte           0x9f                    /* DW_OP_stack_value */
  73 2:
  74
  75 .Ltype_const8:
  76         .uleb128        0x9                     /* Abbrev: DW_TAG_const_type */
  77         .4byte           .Ltype_int8-.Lcu1_begin /* DW_AT_type */
  78
  79         /* func_cu1 */
  80         .uleb128        2                       /* Abbrev: DW_TAG_subprogram */
  81         .byte           1                       /* DW_AT_external */
  82         .byte           1                       /* DW_AT_decl_file */
  83         .byte           2                       /* DW_AT_decl_line */
  84         .ascii          "func_cu1\0"            /* DW_AT_name */
  85         .4byte          .Ltype_int-.Lcu1_begin  /* DW_AT_type */
  86         .byte           1                       /* DW_AT_frame_base: length */
  87         .byte           0x55                    /* DW_AT_frame_base: DW_OP_reg5 */
  88
  89 .Ltype_int:
  90         .uleb128        3                       /* Abbrev: DW_TAG_base_type */
  91         .ascii          "int\0"                 /* DW_AT_name */
  92         .byte           4                       /* DW_AT_byte_size */
  93         .byte           5                       /* DW_AT_encoding */
  94
  95 .Ltype_int8:
  96         .uleb128        3                       /* Abbrev: DW_TAG_base_type */
  97         .ascii          "int8\0"                /* DW_AT_name */
  98         .byte           8                       /* DW_AT_byte_size */
  99         .byte           5                       /* DW_AT_encoding */
 100
 101         .byte           0                       /* End of children of CU */
 102
 103 .Lcu1_end:
 104
 105 /* Abbrev table */
 106         .section .debug_abbrev
 107 .Labbrev1_begin:
 108         .uleb128        1                       /* Abbrev code */
 109         .uleb128        0x11                    /* DW_TAG_compile_unit */
 110         .byte           1                       /* has_children */
 111         .uleb128        0x10                    /* DW_AT_stmt_list */
 112         .uleb128        0x6                     /* DW_FORM_data4 */
 113         .uleb128        0x3                     /* DW_AT_name */
 114         .uleb128        0x8                     /* DW_FORM_string */
 115         .uleb128        0x25                    /* DW_AT_producer */
 116         .uleb128        0x8                     /* DW_FORM_string */
 117         .uleb128        0x13                    /* DW_AT_language */
 118         .uleb128        0xb                     /* DW_FORM_data1 */
 119         .byte           0x0                     /* Terminator */
 120         .byte           0x0                     /* Terminator */
 121
 122         .uleb128        2                       /* Abbrev code */
 123         .uleb128        0x2e                    /* DW_TAG_subprogram */
 124         .byte           0                       /* has_children */
 125         .uleb128        0x3f                    /* DW_AT_external */
 126         .uleb128        0xc                     /* DW_FORM_flag */
 127         .uleb128        0x3a                    /* DW_AT_decl_file */
 128         .uleb128        0xb                     /* DW_FORM_data1 */
 129         .uleb128        0x3b                    /* DW_AT_decl_line */
 130         .uleb128        0xb                     /* DW_FORM_data1 */
 131         .uleb128        0x3                     /* DW_AT_name */
 132         .uleb128        0x8                     /* DW_FORM_string */
 133         .uleb128        0x49                    /* DW_AT_type */
 134         .uleb128        0x13                    /* DW_FORM_ref4 */
 135         .uleb128        0x40                    /* DW_AT_frame_base */
 136         .uleb128        0xa                     /* DW_FORM_block1 */
 137         .byte           0x0                     /* Terminator */
 138         .byte           0x0                     /* Terminator */
 139
 140         .uleb128        3                       /* Abbrev code */
 141         .uleb128        0x24                    /* DW_TAG_base_type */
 142         .byte           0                       /* has_children */
 143         .uleb128        0x3                     /* DW_AT_name */
 144         .uleb128        0x8                     /* DW_FORM_string */
 145         .uleb128        0xb                     /* DW_AT_byte_size */
 146         .uleb128        0xb                     /* DW_FORM_data1 */
 147         .uleb128        0x3e                    /* DW_AT_encoding */
 148         .uleb128        0xb                     /* DW_FORM_data1 */
 149         .byte           0x0                     /* Terminator */
 150         .byte           0x0                     /* Terminator */
 151
 152         .uleb128        0x8                     /* abbrev code */
 153         .uleb128        0x27                    /* TAG: DW_TAG_constant */
 154         .byte           0x0                     /* DW_children_no */
 155         .uleb128        0x3                     /* DW_AT_name */
 156         .uleb128        0x8                     /* DW_FORM_string */
 157         .uleb128        0x49                    /* DW_AT_type */
 158         .uleb128        0x13                    /* DW_FORM_ref4 */
 159         .uleb128        0x1c                    /* DW_AT_const_value */
 160         .uleb128        0xb                     /* DW_FORM_data1 */
 161         .byte           0x0                     /* Terminator */
 162         .byte           0x0                     /* Terminator */
 163
 164         .uleb128        0x9                     /* abbrev code */
 165         .uleb128        0x26                    /* TAG: DW_TAG_const_type */
 166         .byte           0x0                     /* DW_children_no */
 167         .uleb128        0x49                    /* DW_AT_type */
 168         .uleb128        0x13                    /* DW_FORM_ref4 */
 169         .byte           0x0                     /* Terminator */
 170         .byte           0x0                     /* Terminator */
 171
 172         .uleb128        0xa                     /* abbrev code */
 173         .uleb128        0x34                    /* TAG: DW_TAG_variable */
 174         .byte           0x0                     /* DW_children_no */
 175         .uleb128        0x3                     /* DW_AT_name */
 176         .uleb128        0x8                     /* DW_FORM_string */
 177         .uleb128        0x49                    /* DW_AT_type */
 178         .uleb128        0x13                    /* DW_FORM_ref4 */
 179         .uleb128        0x02                    /* DW_AT_location */
 180         .uleb128        0xa                     /* DW_FORM_block1 */
 181         .byte           0x0                     /* Terminator */
 182         .byte           0x0                     /* Terminator */
 183
 184         .byte           0x0                     /* Terminator */
 185         .byte           0x0                     /* Terminator */
 186
 187 /* Line table */
 188         .section .debug_line
 189 .Lline1_begin:
 190         .4byte          .Lline1_end - .Lline1_start     /* Initial length */
 191 .Lline1_start:
 192         .2byte          2                       /* Version */
 193         .4byte          .Lline1_lines - .Lline1_hdr     /* header_length */
 194 .Lline1_hdr:
 195         .byte           1                       /* Minimum insn length */
 196         .byte           1                       /* default_is_stmt */
 197         .byte           1                       /* line_base */
 198         .byte           1                       /* line_range */
 199         .byte           0x10                    /* opcode_base */
 200
 201         /* Standard lengths */
 202         .byte           0
 203         .byte           1
 204         .byte           1
 205         .byte           1
 206         .byte           1
 207         .byte           0
 208         .byte           0
 209         .byte           0
 210         .byte           1
 211         .byte           0
 212         .byte           0
 213         .byte           1
 214         .byte           0
 215         .byte           0
 216         .byte           0
 217
 218         /* Include directories */
 219         .byte           0
 220
 221         /* File names */
 222         .ascii          "file1.txt\0"
 223         .uleb128        0
 224         .uleb128        0
 225         .uleb128        0
 226
 227         .byte           0
 228
 229 .Lline1_lines:
 230         .byte           0       /* DW_LNE_set_address */
 231         .uleb128        5
 232         .byte           2
 233         .4byte          .Lbegin_func_cu1
 234
 235         .byte           3       /* DW_LNS_advance_line */
 236         .sleb128        3       /* ... to 4 */
 237
 238         .byte           1       /* DW_LNS_copy */
 239
 240         .byte           1       /* DW_LNS_copy (second time as an end-of-prologue marker) */
 241
 242         .byte           0       /* DW_LNE_set_address */
 243         .uleb128        5
 244         .byte           2
 245         .4byte          .Lend_func_cu1
 246
 247         .byte           0       /* DW_LNE_end_of_sequence */
 248         .uleb128        1
 249         .byte           1
 250
 251 .Lline1_end: