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| 1 /* Copyright 2012 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 /* Testcase to exercise the code path in bug 13961. |
| 17 |
| 18 Compiled from: |
| 19 |
| 20 class foo |
| 21 { |
| 22 public: |
| 23 int bar; |
| 24 }; |
| 25 |
| 26 foo baz; |
| 27 |
| 28 int |
| 29 main () |
| 30 { |
| 31 return 0; |
| 32 } |
| 33 |
| 34 And then manually edited to insert the necessary DW_AT_specification |
| 35 entries to trigger the desired code path. |
| 36 There's no real need to make this architecture-specific, so it has been |
| 37 further hand-edited to support that. |
| 38 */ |
| 39 |
| 40 .file "pr13961.cc" |
| 41 |
| 42 .globl baz |
| 43 .data /* Previously this used .bss, but it's not portable. */ |
| 44 .align 4 |
| 45 .type baz, @object |
| 46 .size baz, 4 |
| 47 baz: |
| 48 #if 0 |
| 49 /* This is disabled because when it was accidentally left out it |
| 50 caused a segv when used with .gdb_index. */ |
| 51 .file 1 "foo.c" |
| 52 .loc 1 12 0 |
| 53 #endif |
| 54 .zero 4 |
| 55 |
| 56 .text |
| 57 .Ltext0: |
| 58 .globl main |
| 59 .type main, @function |
| 60 main: |
| 61 .LFB0: |
| 62 .4byte 0 |
| 63 .LFE0: |
| 64 .size main, .-main |
| 65 .Letext0: |
| 66 |
| 67 .section .debug_types,"",@progbits |
| 68 .Ldebug_types0: |
| 69 .4byte .Ltu_end - .Ltu_start /* Length of Compilation Unit Info */ |
| 70 .Ltu_start: |
| 71 .2byte 0x4 /* DWARF version number */ |
| 72 .4byte .Ldebug_abbrev0 /* Offset Into Abbrev. Section */ |
| 73 .byte 0x4 /* Pointer Size (in bytes) */ |
| 74 .byte 0x19 /* Type Signature */ |
| 75 .byte 0x8b |
| 76 .byte 0x7e |
| 77 .byte 0xac |
| 78 .byte 0xce |
| 79 .byte 0xf1 |
| 80 .byte 0x22 |
| 81 .byte 0x90 |
| 82 .4byte .Ltu_class_type - .Ldebug_types0 /* Offset to Type DIE */ |
| 83 .uleb128 0x1 /* (DIE (0x17) DW_TAG_type_unit) */ |
| 84 .byte 0x4 /* DW_AT_language */ |
| 85 .byte 0x73 /* DW_AT_GNU_odr_signature */ |
| 86 .byte 0xea |
| 87 .byte 0x85 |
| 88 .byte 0x23 |
| 89 .byte 0x75 |
| 90 .byte 0x8a |
| 91 .byte 0x7e |
| 92 .byte 0x87 |
| 93 .4byte .Ldebug_line0 /* DW_AT_stmt_list */ |
| 94 |
| 95 /* Manually inserted to have a DW_AT_specification refering to |
| 96 something and appearing ahead of it. */ |
| 97 .uleb128 0x8 /* DW_TAG_class_type */ |
| 98 .4byte .Ltu_class_type - .Ldebug_types0 |
| 99 /* End of manual insertion */ |
| 100 |
| 101 .Ltu_class_type: |
| 102 .uleb128 0x2 /* (DIE (0x25) DW_TAG_class_type) */ |
| 103 .ascii "foo\0" /* DW_AT_name */ |
| 104 .byte 0x4 /* DW_AT_byte_size */ |
| 105 .byte 0x1 /* DW_AT_decl_file (pr13961.cc) */ |
| 106 .byte 0x1 /* DW_AT_decl_line */ |
| 107 .4byte 0x3f /* DW_AT_sibling */ |
| 108 .uleb128 0x3 /* (DIE (0x31) DW_TAG_member) */ |
| 109 .ascii "bar\0" /* DW_AT_name */ |
| 110 .byte 0x1 /* DW_AT_decl_file (pr13961.cc) */ |
| 111 .byte 0x4 /* DW_AT_decl_line */ |
| 112 .4byte 0x3f /* DW_AT_type */ |
| 113 .byte 0 /* DW_AT_data_member_location */ |
| 114 .byte 0x1 /* DW_AT_accessibility */ |
| 115 .byte 0 /* end of children of DIE 0x25 */ |
| 116 .uleb128 0x4 /* (DIE (0x3f) DW_TAG_base_type) */ |
| 117 .byte 0x4 /* DW_AT_byte_size */ |
| 118 .byte 0x5 /* DW_AT_encoding */ |
| 119 .ascii "int\0" /* DW_AT_name */ |
| 120 .byte 0 /* end of children of DIE 0x17 */ |
| 121 |
| 122 .Ltu_end: |
| 123 |
| 124 .section .debug_info,"",@progbits |
| 125 .Ldebug_info0: |
| 126 .4byte .Lcu_end - .Lcu_start /* Length of Compilation Unit Info */ |
| 127 .Lcu_start: |
| 128 .2byte 0x4 /* DWARF version number */ |
| 129 .4byte .Ldebug_abbrev0 /* Offset Into Abbrev. Section */ |
| 130 .byte 0x4 /* Pointer Size (in bytes) */ |
| 131 .uleb128 0x5 /* (DIE (0xb) DW_TAG_compile_unit) */ |
| 132 .4byte .LASF0 /* DW_AT_producer: "GNU C++ 4.6.3 20120306" */ |
| 133 .byte 0x4 /* DW_AT_language */ |
| 134 .4byte .LASF1 /* DW_AT_name: "pr13961.cc" */ |
| 135 .4byte .LASF2 /* DW_AT_comp_dir: "." */ |
| 136 .4byte .Ltext0 /* DW_AT_low_pc */ |
| 137 .4byte .Letext0 /* DW_AT_high_pc */ |
| 138 .4byte .Ldebug_line0 /* DW_AT_stmt_list */ |
| 139 .Lint_base_type: |
| 140 .uleb128 0x4 /* (DIE (0x25) DW_TAG_base_type) */ |
| 141 .byte 0x4 /* DW_AT_byte_size */ |
| 142 .byte 0x5 /* DW_AT_encoding */ |
| 143 .ascii "int\0" /* DW_AT_name */ |
| 144 .uleb128 0x6 /* (DIE (0x2c) DW_TAG_subprogram) */ |
| 145 /* DW_AT_external */ |
| 146 .4byte .LASF3 /* DW_AT_name: "main" */ |
| 147 .byte 0x1 /* DW_AT_decl_file (pr13961.cc) */ |
| 148 .byte 0xa /* DW_AT_decl_line */ |
| 149 .4byte 0x25 /* DW_AT_type */ |
| 150 .4byte .LFB0 /* DW_AT_low_pc */ |
| 151 .4byte .LFE0 /* DW_AT_high_pc */ |
| 152 .uleb128 0x1 /* DW_AT_frame_base */ |
| 153 .byte 0x9c /* DW_OP_call_frame_cfa */ |
| 154 /* DW_AT_GNU_all_call_sites */ |
| 155 .uleb128 0x7 /* (DIE (0x41) DW_TAG_variable) */ |
| 156 .ascii "baz\0" /* DW_AT_name */ |
| 157 .byte 0x1 /* DW_AT_decl_file (pr13961.cc) */ |
| 158 .byte 0x7 /* DW_AT_decl_line */ |
| 159 .byte 0x19 /* DW_AT_type */ |
| 160 .byte 0x8b |
| 161 .byte 0x7e |
| 162 .byte 0xac |
| 163 .byte 0xce |
| 164 .byte 0xf1 |
| 165 .byte 0x22 |
| 166 .byte 0x90 |
| 167 /* DW_AT_external */ |
| 168 .uleb128 0x5 /* DW_AT_location */ |
| 169 .byte 0x3 /* DW_OP_addr */ |
| 170 .4byte baz |
| 171 |
| 172 /* Manually inserted to have a DW_AT_specification refering to |
| 173 something and appearing ahead of it. */ |
| 174 .uleb128 0x8 /* DW_TAG_class_type */ |
| 175 .4byte .Lcu_class_type - .Ldebug_info0 /* DW_AT_specification */ |
| 176 |
| 177 .Lcu_int_type: |
| 178 .uleb128 0x4 /* (DIE (0x3f) DW_TAG_base_type) */ |
| 179 .byte 0x4 /* DW_AT_byte_size */ |
| 180 .byte 0x5 /* DW_AT_encoding */ |
| 181 .ascii "int\0" /* DW_AT_name */ |
| 182 .Lcu_class_type: |
| 183 .uleb128 0x2 /* (DIE (0x25) DW_TAG_class_type) */ |
| 184 .ascii "foo2\0" /* DW_AT_name */ |
| 185 .byte 0x4 /* DW_AT_byte_size */ |
| 186 .byte 0x1 /* DW_AT_decl_file (pr13961.cc) */ |
| 187 .byte 0x1 /* DW_AT_decl_line */ |
| 188 .4byte 0x3f /* DW_AT_sibling */ |
| 189 .uleb128 0x3 /* (DIE (0x31) DW_TAG_member) */ |
| 190 .ascii "bar\0" /* DW_AT_name */ |
| 191 .byte 0x1 /* DW_AT_decl_file (pr13961.cc) */ |
| 192 .byte 0x4 /* DW_AT_decl_line */ |
| 193 .4byte .Lcu_int_type - .Ldebug_info0 /* DW_AT_type */ |
| 194 .byte 0 /* DW_AT_data_member_location */ |
| 195 .byte 0x1 /* DW_AT_accessibility */ |
| 196 .byte 0 /* end of children of DIE 0x25 */ |
| 197 .uleb128 0x4 /* (DIE (0x3f) DW_TAG_base_type) */ |
| 198 .byte 0x4 /* DW_AT_byte_size */ |
| 199 .byte 0x5 /* DW_AT_encoding */ |
| 200 .ascii "int\0" /* DW_AT_name */ |
| 201 .byte 0 /* end of children of DIE 0x17 */ |
| 202 /* End of manual insertion */ |
| 203 |
| 204 .byte 0 /* end of children of DIE 0xb */ |
| 205 |
| 206 .Lcu_end: |
| 207 |
| 208 .section .debug_abbrev,"",@progbits |
| 209 .Ldebug_abbrev0: |
| 210 .uleb128 0x1 /* (abbrev code) */ |
| 211 .uleb128 0x41 /* (TAG: DW_TAG_type_unit) */ |
| 212 .byte 0x1 /* DW_children_yes */ |
| 213 .uleb128 0x13 /* (DW_AT_language) */ |
| 214 .uleb128 0xb /* (DW_FORM_data1) */ |
| 215 .uleb128 0x210f /* (DW_AT_GNU_odr_signature) */ |
| 216 .uleb128 0x7 /* (DW_FORM_data8) */ |
| 217 .uleb128 0x10 /* (DW_AT_stmt_list) */ |
| 218 .uleb128 0x17 /* (DW_FORM_sec_offset) */ |
| 219 .byte 0 |
| 220 .byte 0 |
| 221 .uleb128 0x2 /* (abbrev code) */ |
| 222 .uleb128 0x2 /* (TAG: DW_TAG_class_type) */ |
| 223 .byte 0x1 /* DW_children_yes */ |
| 224 .uleb128 0x3 /* (DW_AT_name) */ |
| 225 .uleb128 0x8 /* (DW_FORM_string) */ |
| 226 .uleb128 0xb /* (DW_AT_byte_size) */ |
| 227 .uleb128 0xb /* (DW_FORM_data1) */ |
| 228 .uleb128 0x3a /* (DW_AT_decl_file) */ |
| 229 .uleb128 0xb /* (DW_FORM_data1) */ |
| 230 .uleb128 0x3b /* (DW_AT_decl_line) */ |
| 231 .uleb128 0xb /* (DW_FORM_data1) */ |
| 232 .uleb128 0x1 /* (DW_AT_sibling) */ |
| 233 .uleb128 0x13 /* (DW_FORM_ref4) */ |
| 234 .byte 0 |
| 235 .byte 0 |
| 236 .uleb128 0x3 /* (abbrev code) */ |
| 237 .uleb128 0xd /* (TAG: DW_TAG_member) */ |
| 238 .byte 0 /* DW_children_no */ |
| 239 .uleb128 0x3 /* (DW_AT_name) */ |
| 240 .uleb128 0x8 /* (DW_FORM_string) */ |
| 241 .uleb128 0x3a /* (DW_AT_decl_file) */ |
| 242 .uleb128 0xb /* (DW_FORM_data1) */ |
| 243 .uleb128 0x3b /* (DW_AT_decl_line) */ |
| 244 .uleb128 0xb /* (DW_FORM_data1) */ |
| 245 .uleb128 0x49 /* (DW_AT_type) */ |
| 246 .uleb128 0x13 /* (DW_FORM_ref4) */ |
| 247 .uleb128 0x38 /* (DW_AT_data_member_location) */ |
| 248 .uleb128 0xb /* (DW_FORM_data1) */ |
| 249 .uleb128 0x32 /* (DW_AT_accessibility) */ |
| 250 .uleb128 0xb /* (DW_FORM_data1) */ |
| 251 .byte 0 |
| 252 .byte 0 |
| 253 .uleb128 0x4 /* (abbrev code) */ |
| 254 .uleb128 0x24 /* (TAG: DW_TAG_base_type) */ |
| 255 .byte 0 /* DW_children_no */ |
| 256 .uleb128 0xb /* (DW_AT_byte_size) */ |
| 257 .uleb128 0xb /* (DW_FORM_data1) */ |
| 258 .uleb128 0x3e /* (DW_AT_encoding) */ |
| 259 .uleb128 0xb /* (DW_FORM_data1) */ |
| 260 .uleb128 0x3 /* (DW_AT_name) */ |
| 261 .uleb128 0x8 /* (DW_FORM_string) */ |
| 262 .byte 0 |
| 263 .byte 0 |
| 264 .uleb128 0x5 /* (abbrev code) */ |
| 265 .uleb128 0x11 /* (TAG: DW_TAG_compile_unit) */ |
| 266 .byte 0x1 /* DW_children_yes */ |
| 267 .uleb128 0x25 /* (DW_AT_producer) */ |
| 268 .uleb128 0xe /* (DW_FORM_strp) */ |
| 269 .uleb128 0x13 /* (DW_AT_language) */ |
| 270 .uleb128 0xb /* (DW_FORM_data1) */ |
| 271 .uleb128 0x3 /* (DW_AT_name) */ |
| 272 .uleb128 0xe /* (DW_FORM_strp) */ |
| 273 .uleb128 0x1b /* (DW_AT_comp_dir) */ |
| 274 .uleb128 0xe /* (DW_FORM_strp) */ |
| 275 .uleb128 0x11 /* (DW_AT_low_pc) */ |
| 276 .uleb128 0x1 /* (DW_FORM_addr) */ |
| 277 .uleb128 0x12 /* (DW_AT_high_pc) */ |
| 278 .uleb128 0x1 /* (DW_FORM_addr) */ |
| 279 .uleb128 0x10 /* (DW_AT_stmt_list) */ |
| 280 .uleb128 0x17 /* (DW_FORM_sec_offset) */ |
| 281 .byte 0 |
| 282 .byte 0 |
| 283 .uleb128 0x6 /* (abbrev code) */ |
| 284 .uleb128 0x2e /* (TAG: DW_TAG_subprogram) */ |
| 285 .byte 0 /* DW_children_no */ |
| 286 .uleb128 0x3f /* (DW_AT_external) */ |
| 287 .uleb128 0x19 /* (DW_FORM_flag_present) */ |
| 288 .uleb128 0x3 /* (DW_AT_name) */ |
| 289 .uleb128 0xe /* (DW_FORM_strp) */ |
| 290 .uleb128 0x3a /* (DW_AT_decl_file) */ |
| 291 .uleb128 0xb /* (DW_FORM_data1) */ |
| 292 .uleb128 0x3b /* (DW_AT_decl_line) */ |
| 293 .uleb128 0xb /* (DW_FORM_data1) */ |
| 294 .uleb128 0x49 /* (DW_AT_type) */ |
| 295 .uleb128 0x13 /* (DW_FORM_ref4) */ |
| 296 .uleb128 0x11 /* (DW_AT_low_pc) */ |
| 297 .uleb128 0x1 /* (DW_FORM_addr) */ |
| 298 .uleb128 0x12 /* (DW_AT_high_pc) */ |
| 299 .uleb128 0x1 /* (DW_FORM_addr) */ |
| 300 .uleb128 0x40 /* (DW_AT_frame_base) */ |
| 301 .uleb128 0x18 /* (DW_FORM_exprloc) */ |
| 302 .uleb128 0x2117 /* (DW_AT_GNU_all_call_sites) */ |
| 303 .uleb128 0x19 /* (DW_FORM_flag_present) */ |
| 304 .byte 0 |
| 305 .byte 0 |
| 306 .uleb128 0x7 /* (abbrev code) */ |
| 307 .uleb128 0x34 /* (TAG: DW_TAG_variable) */ |
| 308 .byte 0 /* DW_children_no */ |
| 309 .uleb128 0x3 /* (DW_AT_name) */ |
| 310 .uleb128 0x8 /* (DW_FORM_string) */ |
| 311 .uleb128 0x3a /* (DW_AT_decl_file) */ |
| 312 .uleb128 0xb /* (DW_FORM_data1) */ |
| 313 .uleb128 0x3b /* (DW_AT_decl_line) */ |
| 314 .uleb128 0xb /* (DW_FORM_data1) */ |
| 315 .uleb128 0x49 /* (DW_AT_type) */ |
| 316 .uleb128 0x20 /* (DW_FORM_ref_sig8) */ |
| 317 .uleb128 0x3f /* (DW_AT_external) */ |
| 318 .uleb128 0x19 /* (DW_FORM_flag_present) */ |
| 319 .uleb128 0x2 /* (DW_AT_location) */ |
| 320 .uleb128 0x18 /* (DW_FORM_exprloc) */ |
| 321 .byte 0 |
| 322 .byte 0 |
| 323 |
| 324 /* Manually inserted. */ |
| 325 .uleb128 0x8 /* abbrev code */ |
| 326 .uleb128 0x2 /* DW_TAG_class_type */ |
| 327 .byte 0x0 /* DW_has_children_no */ |
| 328 .uleb128 0x47 /* DW_AT_specification */ |
| 329 .uleb128 0x13 /* DW_FORM_ref4 */ |
| 330 .byte 0x0 /* Terminator */ |
| 331 .byte 0x0 /* Terminator */ |
| 332 /* End of manual insertion. */ |
| 333 |
| 334 .byte 0 |
| 335 |
| 336 .section .debug_aranges,"",@progbits |
| 337 .4byte 0x1c /* Length of Address Ranges Info */ |
| 338 .2byte 0x2 /* DWARF Version */ |
| 339 .4byte .Ldebug_info0 /* Offset of Compilation Unit Info */ |
| 340 .byte 0x4 /* Size of Address */ |
| 341 .byte 0 /* Size of Segment Descriptor */ |
| 342 .2byte 0 /* Pad to 8 byte boundary */ |
| 343 .2byte 0 |
| 344 .4byte .Ltext0 /* Address */ |
| 345 .4byte .Letext0-.Ltext0 /* Length */ |
| 346 .4byte 0 |
| 347 .4byte 0 |
| 348 |
| 349 .section .debug_line,"",@progbits |
| 350 .Ldebug_line0: |
| 351 |
| 352 .section .debug_str,"MS",@progbits,1 |
| 353 .LASF0: |
| 354 .string "GNU C++ 4.6.3 20120306" |
| 355 .LASF2: |
| 356 .string "." |
| 357 .LASF1: |
| 358 .string "pr13961.cc" |
| 359 .LASF3: |
| 360 .string "main" |
| 361 |
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Chromium Code Reviews
Issue 11969036:
Merge GDB 7.5.1 (Closed)
Base URL: http://git.chromium.org/native_client/nacl-gdb.git@master