gdb/testsuite/gdb.dwarf2/valop.S

   1 /*
   2    Copyright 2009-2013 Free Software Foundation, Inc.
   3
   4    This program is free software; you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 /* This was compiled from a trivial program just to test the
  19    DW_OP_stack_value and DW_OP_implicit_value operators:
  20
  21     unsigned int func (unsigned int arg) __attribute__ ((__noinline__));
  22
  23     unsigned int func (unsigned int arg)
  24     {
  25       unsigned int uses_stack_op = 23;
  26       unsigned int uses_lit_op = 0x7fffffff;
  27       unsigned int result = arg;
  28
  29       if (arg % 2)
  30         result += uses_lit_op + uses_stack_op;
  31       else
  32         {
  33           ++uses_stack_op;
  34           ++uses_lit_op;
  35
  36           result -= uses_stack_op + uses_lit_op;
  37         }
  38
  39       return result * uses_stack_op;  // line 19, see the .exp file
  40     }
  41
  42     int main (int argc, char *argv[])
  43     {
  44       return func (1024);
  45     }
  46
  47   Then it was compiled with:
  48
  49         gcc -fvar-tracking{,-assignments} -gdwarf-3
  50         -fno-inline{,-functions,-small-functions,-functions-called-once}
  51         -O2
  52
  53 */
  54
  55         .file   "valop.c"
  56         .section        .debug_abbrev,"",@progbits
  57 .Ldebug_abbrev0:
  58         .section        .debug_info,"",@progbits
  59 .Ldebug_info0:
  60         .section        .debug_line,"",@progbits
  61 .Ldebug_line0:
  62         .text
  63 .Ltext0:
  64         .p2align 4,,15
  65 .globl func
  66         .type   func, @function
  67 func:
  68 .LFB0:
  69         .file 1 "valop.c"
  70         .loc 1 4 0
  71         .cfi_startproc
  72 .LVL0:
  73         pushl   %ebp
  74         .cfi_def_cfa_offset 8
  75         movl    %esp, %ebp
  76         .cfi_offset 5, -8
  77         .cfi_def_cfa_register 5
  78         .loc 1 4 0
  79         movl    8(%ebp), %eax
  80 .LVL1:
  81         .loc 1 9 0
  82         testb   $1, %al
  83         jne     .L5
  84 .LVL2:
  85         .loc 1 16 0
  86         addl    $2147483624, %eax
  87 .LVL3:
  88         .loc 1 13 0
  89         movl    $24, %edx
  90 .LVL4:
  91         .loc 1 16 0
  92         imull   %edx, %eax
  93 .LVL5:
  94         .loc 1 20 0
  95         popl    %ebp
  96         .cfi_remember_state
  97         .cfi_restore 5
  98         .cfi_def_cfa 4, 4
  99         ret
 100 .LVL6:
 101         .p2align 4,,7
 102         .p2align 3
 103 .L5:
 104         .cfi_restore_state
 105         .loc 1 10 0
 106         subl    $2147483626, %eax
 107 .LVL7:
 108         .loc 1 5 0
 109         movl    $23, %edx
 110 .LVL8:
 111         .loc 1 16 0
 112         imull   %edx, %eax
 113 .LVL9:
 114         .loc 1 20 0
 115         popl    %ebp
 116         .cfi_def_cfa 4, 4
 117         .cfi_restore 5
 118         ret
 119         .cfi_endproc
 120 .LFE0:
 121         .size   func, .-func
 122         .p2align 4,,15
 123 .globl _start
 124         .type   _start, @function
 125 _start:
 126 .LFB1:
 127         .loc 1 23 0
 128         .cfi_startproc
 129 .LVL10:
 130         pushl   %ebp
 131         .cfi_def_cfa_offset 8
 132         movl    %esp, %ebp
 133         .cfi_offset 5, -8
 134         .cfi_def_cfa_register 5
 135         subl    $4, %esp
 136         .loc 1 24 0
 137         movl    $1024, (%esp)
 138         call    func
 139 .LVL11:
 140         .loc 1 25 0
 141         leave
 142         .cfi_restore 5
 143         .cfi_def_cfa 4, 4
 144         ret
 145         .cfi_endproc
 146 .LFE1:
 147         .size   _start, .-_start
 148 .Letext0:
 149         .section        .debug_loc,"",@progbits
 150 .Ldebug_loc0:
 151 .LLST0:
 152         .long   .LVL0-.Ltext0
 153         .long   .LVL2-.Ltext0
 154         .value  0x4
 155         .byte   0x47
 156         .byte   0x9f
 157         .byte   0x93
 158         .uleb128 0x4
 159         .long   .LVL2-.Ltext0
 160         .long   .LVL4-.Ltext0
 161         .value  0x4
 162         .byte   0x48
 163         .byte   0x9f
 164         .byte   0x93
 165         .uleb128 0x4
 166         .long   .LVL4-.Ltext0
 167         .long   .LVL6-.Ltext0
 168         .value  0x1
 169         .byte   0x52
 170         .long   .LVL6-.Ltext0
 171         .long   .LVL8-.Ltext0
 172         .value  0x4
 173         .byte   0x47
 174         .byte   0x9f
 175         .byte   0x93
 176         .uleb128 0x4
 177         .long   .LVL8-.Ltext0
 178         .long   .LFE0-.Ltext0
 179         .value  0x1
 180         .byte   0x52
 181         .long   0x0
 182         .long   0x0
 183 .LLST1:
 184         .long   .LVL0-.Ltext0
 185         .long   .LVL2-.Ltext0
 186         .value  0x6
 187         .byte   0x9e
 188         .uleb128 0x4
 189         .long   0x7fffffff
 190         .long   .LVL2-.Ltext0
 191         .long   .LVL6-.Ltext0
 192         .value  0x6
 193         .byte   0x9e
 194         .uleb128 0x4
 195         .long   0x80000000
 196         .long   .LVL6-.Ltext0
 197         .long   .LFE0-.Ltext0
 198         .value  0x6
 199         .byte   0x9e
 200         .uleb128 0x4
 201         .long   0x7fffffff
 202         .long   0x0
 203         .long   0x0
 204 .LLST2:
 205         .long   .LVL1-.Ltext0
 206         .long   .LVL3-.Ltext0
 207         .value  0x1
 208         .byte   0x50
 209         .long   .LVL3-.Ltext0
 210         .long   .LVL5-.Ltext0
 211         .value  0x1
 212         .byte   0x50
 213         .long   .LVL6-.Ltext0
 214         .long   .LVL7-.Ltext0
 215         .value  0x1
 216         .byte   0x50
 217         .long   .LVL7-.Ltext0
 218         .long   .LVL9-.Ltext0
 219         .value  0x1
 220         .byte   0x50
 221         .long   0x0
 222         .long   0x0
 223 .LLST3:
 224         .long   .LVL10-.Ltext0
 225         .long   .LVL11-1-.Ltext0
 226         .value  0x2
 227         .byte   0x91
 228         .sleb128 0
 229         .long   0x0
 230         .long   0x0
 231 .LLST4:
 232         .long   .LVL10-.Ltext0
 233         .long   .LVL11-1-.Ltext0
 234         .value  0x2
 235         .byte   0x91
 236         .sleb128 4
 237         .long   0x0
 238         .long   0x0
 239         .section        .debug_info
 240         .long   0xd4
 241         .value  0x3
 242         .long   .Ldebug_abbrev0
 243         .byte   0x4
 244         .uleb128 0x1
 245         .long   .LASF9
 246         .byte   0x1
 247         .long   .LASF10
 248         .long   .LASF11
 249         .long   .Ltext0
 250         .long   .Letext0
 251         .long   .Ldebug_line0
 252         .uleb128 0x2
 253         .byte   0x1
 254         .long   .LASF3
 255         .byte   0x1
 256         .byte   0x3
 257         .byte   0x1
 258         .long   0x7c
 259         .long   .LFB0
 260         .long   .LFE0
 261         .byte   0x1
 262         .byte   0x9c
 263         .long   0x7c
 264         .uleb128 0x3
 265         .string "arg"
 266         .byte   0x1
 267         .byte   0x3
 268         .long   0x7c
 269         .byte   0x2
 270         .byte   0x91
 271         .sleb128 0
 272         .uleb128 0x4
 273         .long   .LASF0
 274         .byte   0x1
 275         .byte   0x5
 276         .long   0x7c
 277         .long   .LLST0
 278         .uleb128 0x4
 279         .long   .LASF1
 280         .byte   0x1
 281         .byte   0x6
 282         .long   0x7c
 283         .long   .LLST1
 284         .uleb128 0x4
 285         .long   .LASF2
 286         .byte   0x1
 287         .byte   0x7
 288         .long   0x7c
 289         .long   .LLST2
 290         .byte   0x0
 291         .uleb128 0x5
 292         .byte   0x4
 293         .byte   0x7
 294         .long   .LASF7
 295         .uleb128 0x2
 296         .byte   0x1
 297         .long   .LASF4
 298         .byte   0x1
 299         .byte   0x16
 300         .byte   0x1
 301         .long   0xbd
 302         .long   .LFB1
 303         .long   .LFE1
 304         .byte   0x1
 305         .byte   0x9c
 306         .long   0xbd
 307         .uleb128 0x6
 308         .long   .LASF5
 309         .byte   0x1
 310         .byte   0x16
 311         .long   0xbd
 312         .long   .LLST3
 313         .uleb128 0x6
 314         .long   .LASF6
 315         .byte   0x1
 316         .byte   0x16
 317         .long   0xc4
 318         .long   .LLST4
 319         .byte   0x0
 320         .uleb128 0x7
 321         .byte   0x4
 322         .byte   0x5
 323         .string "int"
 324         .uleb128 0x8
 325         .byte   0x4
 326         .long   0xca
 327         .uleb128 0x8
 328         .byte   0x4
 329         .long   0xd0
 330         .uleb128 0x5
 331         .byte   0x1
 332         .byte   0x6
 333         .long   .LASF8
 334         .byte   0x0
 335         .section        .debug_abbrev
 336         .uleb128 0x1
 337         .uleb128 0x11
 338         .byte   0x1
 339         .uleb128 0x25
 340         .uleb128 0xe
 341         .uleb128 0x13
 342         .uleb128 0xb
 343         .uleb128 0x3
 344         .uleb128 0xe
 345         .uleb128 0x1b
 346         .uleb128 0xe
 347         .uleb128 0x11
 348         .uleb128 0x1
 349         .uleb128 0x12
 350         .uleb128 0x1
 351         .uleb128 0x10
 352         .uleb128 0x6
 353         .byte   0x0
 354         .byte   0x0
 355         .uleb128 0x2
 356         .uleb128 0x2e
 357         .byte   0x1
 358         .uleb128 0x3f
 359         .uleb128 0xc
 360         .uleb128 0x3
 361         .uleb128 0xe
 362         .uleb128 0x3a
 363         .uleb128 0xb
 364         .uleb128 0x3b
 365         .uleb128 0xb
 366         .uleb128 0x27
 367         .uleb128 0xc
 368         .uleb128 0x49
 369         .uleb128 0x13
 370         .uleb128 0x11
 371         .uleb128 0x1
 372         .uleb128 0x12
 373         .uleb128 0x1
 374         .uleb128 0x40
 375         .uleb128 0xa
 376         .uleb128 0x1
 377         .uleb128 0x13
 378         .byte   0x0
 379         .byte   0x0
 380         .uleb128 0x3
 381         .uleb128 0x5
 382         .byte   0x0
 383         .uleb128 0x3
 384         .uleb128 0x8
 385         .uleb128 0x3a
 386         .uleb128 0xb
 387         .uleb128 0x3b
 388         .uleb128 0xb
 389         .uleb128 0x49
 390         .uleb128 0x13
 391         .uleb128 0x2
 392         .uleb128 0xa
 393         .byte   0x0
 394         .byte   0x0
 395         .uleb128 0x4
 396         .uleb128 0x34
 397         .byte   0x0
 398         .uleb128 0x3
 399         .uleb128 0xe
 400         .uleb128 0x3a
 401         .uleb128 0xb
 402         .uleb128 0x3b
 403         .uleb128 0xb
 404         .uleb128 0x49
 405         .uleb128 0x13
 406         .uleb128 0x2
 407         .uleb128 0x6
 408         .byte   0x0
 409         .byte   0x0
 410         .uleb128 0x5
 411         .uleb128 0x24
 412         .byte   0x0
 413         .uleb128 0xb
 414         .uleb128 0xb
 415         .uleb128 0x3e
 416         .uleb128 0xb
 417         .uleb128 0x3
 418         .uleb128 0xe
 419         .byte   0x0
 420         .byte   0x0
 421         .uleb128 0x6
 422         .uleb128 0x5
 423         .byte   0x0
 424         .uleb128 0x3
 425         .uleb128 0xe
 426         .uleb128 0x3a
 427         .uleb128 0xb
 428         .uleb128 0x3b
 429         .uleb128 0xb
 430         .uleb128 0x49
 431         .uleb128 0x13
 432         .uleb128 0x2
 433         .uleb128 0x6
 434         .byte   0x0
 435         .byte   0x0
 436         .uleb128 0x7
 437         .uleb128 0x24
 438         .byte   0x0
 439         .uleb128 0xb
 440         .uleb128 0xb
 441         .uleb128 0x3e
 442         .uleb128 0xb
 443         .uleb128 0x3
 444         .uleb128 0x8
 445         .byte   0x0
 446         .byte   0x0
 447         .uleb128 0x8
 448         .uleb128 0xf
 449         .byte   0x0
 450         .uleb128 0xb
 451         .uleb128 0xb
 452         .uleb128 0x49
 453         .uleb128 0x13
 454         .byte   0x0
 455         .byte   0x0
 456         .byte   0x0
 457         .section        .debug_pubnames,"",@progbits
 458         .long   0x20
 459         .value  0x2
 460         .long   .Ldebug_info0
 461         .long   0xd8
 462         .long   0x25
 463         .string "func"
 464         .long   0x83
 465         .string "main"
 466         .long   0x0
 467         .section        .debug_aranges,"",@progbits
 468         .long   0x1c
 469         .value  0x2
 470         .long   .Ldebug_info0
 471         .byte   0x4
 472         .byte   0x0
 473         .value  0x0
 474         .value  0x0
 475         .long   .Ltext0
 476         .long   .Letext0-.Ltext0
 477         .long   0x0
 478         .long   0x0
 479         .section        .debug_str,"MS",@progbits,1
 480 .LASF7:
 481         .string "unsigned int"
 482 .LASF3:
 483         .string "func"
 484 .LASF0:
 485         .string "uses_stack_op"
 486 .LASF5:
 487         .string "argc"
 488 .LASF10:
 489         .string "valop.c"
 490 .LASF2:
 491         .string "result"
 492 .LASF8:
 493         .string "char"
 494 .LASF9:
 495         .string "GNU C 4.5.0 20090818 (experimental) [var-tracking-assignments-branch revision 150964]"
 496 .LASF4:
 497         .string "main"
 498 .LASF11:
 499         .string "/tmp"
 500 .LASF1:
 501         .string "uses_lit_op"
 502 .LASF6:
 503         .string "argv"
 504         .ident  "GCC: (GNU) 4.5.0 20090818 (experimental) [var-tracking-assignments-branch revision 150964]"
 505         .section        .note.GNU-stack,"",@progbits