gdb/testsuite/gdb.dwarf2/dw2-anon-mptr.S

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2012-2013 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 /* This test triggers a crash when a physname for a subprogram has
  19    a method pointer to an anonymous struct as a parameter.  This
  20    situation is possible with templates and lambda expressions,
  21    reproduced here by the following source code:
  22
  23    class a
  24    {
  25     public:
  26      int doit (void) { return 0; }
  27    };
  28
  29   class crash
  30    {
  31     public:
  32      crash (int (a::*mp) (void)) {}
  33    };
  34
  35    In order to avoid lambdas, the resulting output has been edited to
  36    remove the DW_AT_name attribute from the DIEs describing "class a."  */
  37
  38 #define OFFSET(LBL) .Ldie_ ## LBL - .Lcu1_begin
  39
  40         .section        .debug_info
  41 .Lcu1_begin:
  42         .4byte  .Lcu1_end - .Lcu1_start /* Length of Compilation Unit Info */
  43 .Lcu1_start:
  44         .2byte  0x3     /* DWARF version number */
  45         .4byte  .Labbrev1_begin /* Offset Into Abbrev. Section */
  46         .byte   0x4     /* Pointer Size (in bytes) */
  47
  48 .Ldie_b:
  49         .uleb128 0x1    /* (DIE (0xb) DW_TAG_compile_unit) */
  50         .ascii  "GNU C++ 4.6.3\0"       /* DW_AT_producer */
  51         .byte   0x4     /* DW_AT_language */
  52         .ascii  "anon-member-ptr.cc\0"  /* DW_AT_name */
  53         .4byte  .Ldebug_line0   /* DW_AT_stmt_list */
  54
  55 .Ldie_31:
  56         .uleb128 0x2    /* (DIE (0x31) DW_TAG_class_type  */
  57 #if 0
  58         /* This is the "fudging" part...  */
  59         .ascii  "a\0"   /* DW_AT_name */
  60 #endif
  61         .byte   0x1     /* DW_AT_byte_size */
  62
  63 .Ldie_59:
  64         .uleb128 0x4    /* (DIE (0x59) DW_TAG_base_type */
  65         .byte   0x4     /* DW_AT_byte_size */
  66         .byte   0x5     /* DW_AT_encoding */
  67         .ascii  "int\0" /* DW_AT_name */
  68
  69 .Ldie_60:
  70         .uleb128 0x5    /* (DIE (0x60) DW_TAG_pointer_type) */
  71         .byte   0x4     /* DW_AT_byte_size */
  72         .4byte  OFFSET (31)     /* DW_AT_type */
  73
  74 .Ldie_66:
  75         .uleb128 0x6    /* (DIE (0x66) DW_TAG_class_type) */
  76         .ascii  "crash\0"       /* DW_AT_name */
  77         .byte   0x1     /* DW_AT_byte_size */
  78         .4byte  OFFSET (8d)     /* DW_AT_sibling */
  79
  80 .Ldie_72:
  81         .uleb128 0x7    /* (DIE (0x72) DW_TAG_subprogram) */
  82         .byte   0x1     /* DW_AT_external */
  83         .ascii  "crash\0"       /* DW_AT_name */
  84         .byte   0x1     /* DW_AT_accessibility */
  85         .byte   0x1     /* DW_AT_declaration */
  86         .4byte  OFFSET (80)     /* DW_AT_object_pointer */
  87
  88 .Ldie_80:
  89         .uleb128 0x3    /* (DIE (0x80) DW_TAG_formal_parameter */
  90         .4byte  OFFSET (8d)     /* DW_AT_type */
  91         .byte   0x1     /* DW_AT_artificial */
  92
  93 .Ldie_86:
  94         .uleb128 0x3    /* (DIE (0x86) DW_TAG_formal_parameter */
  95         .4byte  OFFSET (93)     /* DW_AT_type */
  96         .byte   0x0     /* DW_AT_artificial */
  97         .byte   0       /* end of children of DIE 0x72 */
  98         .byte   0       /* end of children of DIE 0x66 */
  99
 100 .Ldie_8d:
 101         .uleb128 0x5    /* (DIE (0x8d) DW_TAG_pointer_type */
 102         .byte   0x4     /* DW_AT_size */
 103         .4byte  OFFSET (66)     /* DW_AT_type */
 104
 105 .Ldie_93:
 106         .uleb128 0x8    /* (DIE (0x93) DW_TAG_structure_type */
 107         .byte   0x10    /* DW_AT_byte_size */
 108         .4byte  OFFSET (b4)     /* DW_AT_sibling */
 109
 110 .Ldie_9b:
 111         .uleb128 0x9    /* (DIE (0x9b) DW_TAG_member */
 112         .ascii  "__pfn\0"       /* DW_AT_name */
 113         .4byte  OFFSET (c8)     /* DW_AT_type */
 114         .byte   0       /* DW_AT_data_member_location */
 115
 116 .Ldie_a7:
 117         .uleb128 0x9    /* (DIE (0xa7) DW_TAG_member */
 118         .ascii  "__delta\0"     /* DW_AT_name */
 119         .4byte  OFFSET (ce)     /* DW_AT_type */
 120         .byte   0x8     /* DW_AT_data_member_location */
 121         .byte   0       /* end of children of DIE 0x93 */
 122
 123 .Ldie_b4:
 124         .uleb128 0xa    /* (DIE (0xb4) DW_TAG_subroutine_type) */
 125         .4byte  OFFSET (59)     /* DW_AT_type */
 126         .4byte  OFFSET (c1)     /* DW_AT_object_pointer */
 127         .4byte  OFFSET (c8)     /* DW_AT_sibling */
 128
 129 .Ldie_c1:
 130         .uleb128 0x3    /* (DIE (0xc1) DW_TAG_formal_parameter) */
 131         .4byte  OFFSET (60)     /* DW_AT_type */
 132         .byte   0x1     /* DW_AT_artificial */
 133         .byte   0       /* end of children of DIE 0xb4 */
 134
 135 .Ldie_c8:
 136         .uleb128 0x5    /* (DIE (0xc8) DW_TAG_pointer_type) */
 137         .byte   0x4     /* DW_AT_byte_size */
 138         .4byte  OFFSET (b4)     /* DW_AT_type */
 139
 140 .Ldie_ce:
 141         .uleb128 0x4    /* (DIE (0xce) DW_TAG_base_type) */
 142         .byte   0x8     /* DW_AT_byte_size */
 143         .byte   0x5     /* DW_AT_encoding */
 144         .ascii  "long int\0"    /* DW_AT_name */
 145
 146 .Ldie_107:
 147         .uleb128 0xc    /* (DIE (0x107) DW_TAG_subprogram) */
 148         .4byte  OFFSET (72)     /* DW_AT_specification */
 149         .byte   0x2     /* DW_AT_inline */
 150         .4byte  OFFSET (115)    /* DW_AT_object_pointer */
 151         .4byte  OFFSET (12a)    /* DW_AT_sibling */
 152
 153 .Ldie_115:
 154         .uleb128 0xd    /* (DIE (0x115) DW_TAG_formal_parameter) */
 155         .ascii  "this\0"        /* DW_AT_name */
 156         .4byte  OFFSET (12a)    /* DW_AT_type */
 157         .byte   0x1     /* DW_AT_artificial */
 158
 159 .Ldie_11f:
 160         .uleb128 0xd    /* (DIE (0x11f) DW_TAG_formal_parameter) */
 161         .ascii  "mp\0"  /* DW_AT_name */
 162         .4byte  OFFSET (93)     /* DW_AT_type */
 163         .byte   0x0     /* DW_AT_artificial */
 164         .byte   0       /* end of children of DIE 0x107 */
 165
 166 .Ldie_12a:
 167         .uleb128 0xb    /* (DIE (0x12a) DW_TAG_const_type) */
 168         .4byte  OFFSET (8d)     /* DW_AT_type */
 169
 170 .Ldie_12f:
 171         .uleb128 0xe    /* (DIE (0x12f) DW_TAG_subprogram) */
 172         .4byte  OFFSET (107)    /* DW_AT_abstract_origin */
 173         .4byte  0x20    /* DW_AT_low_pc */
 174         .4byte  0x2c    /* DW_AT_high_pc */
 175         .4byte  OFFSET (14e)    /* DW_AT_object_pointer */
 176
 177 .Ldie_14e:
 178         .uleb128 0xf    /* (DIE (0x14e) DW_TAG_formal_parameter) */
 179         .4byte  OFFSET (115)    /* DW_AT_abstract_origin */
 180         .byte   0x2     /* DW_AT_location */
 181         .byte   0x91
 182         .sleb128 -24
 183
 184 .Ldie_156:
 185         .uleb128 0xf    /* (DIE (0x156) DW_TAG_formal_parameter) */
 186         .4byte  OFFSET (11f)    /* DW_at_abstract_origin */
 187         .byte   0x2     /* DW_AT_location */
 188         .byte   0x91
 189         .sleb128 -40
 190         .byte   0       /* end of children of DIE 0x12f */
 191         .byte   0       /* end of children of DIE 0x5b */
 192 .Lcu1_end:
 193
 194 /* Abbrev table */
 195         .section        .debug_abbrev
 196         .uleb128 0x1    /* (abbrev code) */
 197         .uleb128 0x11   /* (TAG: DW_TAG_compile_unit) */
 198         .byte   0x1     /* DW_children_yes */
 199         .uleb128 0x25   /* (DW_AT_producer) */
 200         .uleb128 0x8    /* (DW_FORM_string) */
 201         .uleb128 0x13   /* (DW_AT_language) */
 202         .uleb128 0xb    /* (DW_FORM_data1) */
 203         .uleb128 0x3    /* (DW_AT_name) */
 204         .uleb128 0x8    /* (DW_FORM_string) */
 205         .uleb128 0x10   /* (DW_AT_stmt_list) */
 206         .uleb128 0x6    /* (DW_FORM_data4) */
 207         .byte   0
 208         .byte   0
 209
 210         .uleb128 0x2    /* (abbrev code) */
 211         .uleb128 0x2    /* (TAG: DW_TAG_class_type) */
 212         .byte   0x0     /* DW_children_no */
 213 #if 0
 214         /* This is the "fudging" part...  */
 215         .uleb128 0x3    /* (DW_AT_name) */
 216         .uleb128 0x8    /* (DW_FORM_string) */
 217 #endif
 218         .uleb128 0xb    /* (DW_AT_byte_size) */
 219         .uleb128 0xb    /* (DW_FORM_data1) */
 220         .byte   0
 221         .byte   0
 222
 223         .uleb128 0x3    /* (abbrev code) */
 224         .uleb128 0x5    /* (TAG: DW_TAG_formal_parameter) */
 225         .byte   0       /* DW_children_no */
 226         .uleb128 0x49   /* (DW_AT_type) */
 227         .uleb128 0x13   /* (DW_FORM_ref4) */
 228         .uleb128 0x34   /* (DW_AT_artificial) */
 229         .uleb128 0xc    /* (DW_FORM_flag) */
 230         .byte   0
 231         .byte   0
 232
 233         .uleb128 0x4    /* (abbrev code) */
 234         .uleb128 0x24   /* (TAG: DW_TAG_base_type) */
 235         .byte   0       /* DW_children_no */
 236         .uleb128 0xb    /* (DW_AT_byte_size) */
 237         .uleb128 0xb    /* (DW_FORM_data1) */
 238         .uleb128 0x3e   /* (DW_AT_encoding) */
 239         .uleb128 0xb    /* (DW_FORM_data1) */
 240         .uleb128 0x3    /* (DW_AT_name) */
 241         .uleb128 0x8    /* (DW_FORM_string) */
 242         .byte   0
 243         .byte   0
 244
 245         .uleb128 0x5    /* (abbrev code) */
 246         .uleb128 0xf    /* (TAG: DW_TAG_pointer_type) */
 247         .byte   0       /* DW_children_no */
 248         .uleb128 0xb    /* (DW_AT_byte_size) */
 249         .uleb128 0xb    /* (DW_FORM_data1) */
 250         .uleb128 0x49   /* (DW_AT_type) */
 251         .uleb128 0x13   /* (DW_FORM_ref4) */
 252         .byte   0
 253         .byte   0
 254
 255         .uleb128 0x6    /* (abbrev code) */
 256         .uleb128 0x2    /* (TAG: DW_TAG_class_type) */
 257         .byte   0x1     /* DW_children_yes */
 258         .uleb128 0x3    /* (DW_AT_name) */
 259         .uleb128 0x8    /* (DW_FORM_string) */
 260         .uleb128 0xb    /* (DW_AT_byte_size) */
 261         .uleb128 0xb    /* (DW_FORM_data1) */
 262         .uleb128 0x1    /* (DW_AT_sibling) */
 263         .uleb128 0x13
 264         .byte   0
 265         .byte   0
 266
 267         .uleb128 0x7    /* (abbrev code) */
 268         .uleb128 0x2e   /* (TAG: DW_TAG_subprogram) */
 269         .byte   0x1     /* DW_children_yes */
 270         .uleb128 0x3f   /* (DW_AT_external) */
 271         .uleb128 0xc    /* (DW_FORM_flag) */
 272         .uleb128 0x3    /* (DW_AT_name) */
 273         .uleb128 0x8    /* (DW_FORM_string) */
 274         .uleb128 0x32   /* (DW_AT_accessibility) */
 275         .uleb128 0xb    /* (DW_FORM_data1) */
 276         .uleb128 0x3c   /* (DW_AT_declaration) */
 277         .uleb128 0xc    /* (DW_FORM_flag) */
 278         .uleb128 0x64   /* (DW_AT_object_pointer) */
 279         .uleb128 0x13   /* (DW_FORM_ref4) */
 280         .byte   0
 281         .byte   0
 282
 283         .uleb128 0x8    /* (abbrev code) */
 284         .uleb128 0x13   /* (TAG: DW_TAG_structure_type) */
 285         .byte   0x1     /* DW_children_yes */
 286         .uleb128 0xb    /* (DW_AT_byte_size) */
 287         .uleb128 0xb    /* (DW_FORM_data1) */
 288         .uleb128 0x1    /* (DW_AT_sibling) */
 289         .uleb128 0x13   /* (DW_FORM_ref4) */
 290         .byte   0
 291         .byte   0
 292
 293         .uleb128 0x9    /* (abbrev code) */
 294         .uleb128 0xd    /* (TAG: DW_TAG_member) */
 295         .byte   0       /* DW_children_no */
 296         .uleb128 0x3    /* (DW_AT_name) */
 297         .uleb128 0x8    /* (DW_FORM_string) */
 298         .uleb128 0x49   /* (DW_AT_type) */
 299         .uleb128 0x13   /* (DW_FORM_ref4) */
 300         .uleb128 0x38   /* (DW_AT_data_member_location) */
 301         .uleb128 0xb    /* (DW_FORM_data1) */
 302         .byte   0
 303         .byte   0
 304
 305         .uleb128 0xa    /* (abbrev code) */
 306         .uleb128 0x15   /* (TAG: DW_TAG_subroutine_type) */
 307         .byte   0x1     /* DW_children_yes */
 308         .uleb128 0x49   /* (DW_AT_type) */
 309         .uleb128 0x13   /* (DW_FORM_ref4) */
 310         .uleb128 0x64   /* (DW_AT_object_pointer) */
 311         .uleb128 0x13   /* (DW_FORM_ref4) */
 312         .uleb128 0x1    /* (DW_AT_sibling) */
 313         .uleb128 0x13   /* (DW_FORM_ref4) */
 314         .byte   0
 315         .byte   0
 316
 317         .uleb128 0xb    /* (abbrev code) */
 318         .uleb128 0x26   /* (TAG: DW_TAG_const_type) */
 319         .byte   0       /* DW_children_no */
 320         .uleb128 0x49   /* (DW_AT_type) */
 321         .uleb128 0x13   /* (DW_FORM_ref4) */
 322         .byte   0
 323         .byte   0
 324
 325         .uleb128 0xc    /* (abbrev code) */
 326         .uleb128 0x2e   /* (TAG: DW_TAG_subprogram) */
 327         .byte   0x1     /* DW_children_yes */
 328         .uleb128 0x47   /* (DW_AT_specification) */
 329         .uleb128 0x13   /* (DW_FORM_ref4) */
 330         .uleb128 0x20   /* (DW_AT_inline) */
 331         .uleb128 0xb    /* (DW_FORM_data1) */
 332         .uleb128 0x64   /* (DW_AT_object_pointer) */
 333         .uleb128 0x13   /* (DW_FORM_ref4) */
 334         .uleb128 0x1    /* (DW_AT_sibling) */
 335         .uleb128 0x13   /* (DW_FORM_ref4) */
 336         .byte   0
 337         .byte   0
 338
 339         .uleb128 0xd    /* (abbrev code) */
 340         .uleb128 0x5    /* (TAG: DW_TAG_formal_parameter) */
 341         .byte   0       /* DW_children_no */
 342         .uleb128 0x3    /* (DW_AT_name) */
 343         .uleb128 0x8    /* (DW_FORM_string) */
 344         .uleb128 0x49   /* (DW_AT_type) */
 345         .uleb128 0x13   /* (DW_FORM_ref4) */
 346         .uleb128 0x34   /* (DW_AT_artificial) */
 347         .uleb128 0xc    /* (DW_FORM_flag) */
 348         .byte   0
 349         .byte   0
 350
 351         .uleb128 0xe    /* (abbrev code) */
 352         .uleb128 0x2e   /* (TAG: DW_TAG_subprogram) */
 353         .byte   0x1     /* DW_children_yes */
 354         .uleb128 0x31   /* (DW_AT_abstract_origin) */
 355         .uleb128 0x13   /* (DW_FORM_ref4) */
 356         .uleb128 0x11   /* (DW_AT_low_pc) */
 357         .uleb128 0x13   /* (DW_FORM_ref4) */
 358         .uleb128 0x12   /* (DW_AT_high_pc) */
 359         .uleb128 0x13   /* (DW_FORM_ref4) */
 360         .uleb128 0x64   /* (DW_AT_object_pointer) */
 361         .uleb128 0x13   /* (DW_FORM_ref4) */
 362         .byte   0
 363         .byte   0
 364
 365         .uleb128 0xf    /* (abbrev code) */
 366         .uleb128 0x5    /* (TAG: DW_TAG_formal_parameter) */
 367         .byte   0       /* DW_children_no */
 368         .uleb128 0x31   /* (DW_AT_abstract_origin) */
 369         .uleb128 0x13   /* (DW_FORM_ref4) */
 370         .uleb128 0x2    /* (DW_AT_location) */
 371         .uleb128 0xa    /* (DW_FORM_block) */
 372         .byte   0
 373         .byte   0
 374         .byte   0
 375
 376         .section        .debug_line
 377 .Ldebug_line0: