gdb/testsuite/gdb.arch/amd64-tailcall-ret.S

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2012-2021 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 source file was generated by:
  19    gcc -o gdb.arch/amd64-tailcall-ret.S gdb.arch/amd64-tailcall-ret.c -Wall -S -dA -O2 -g
  20    */
  21
  22         .file   "amd64-tailcall-ret.c"
  23         .text
  24 .Ltext0:
  25         .p2align 4,,15
  26         .type   g, @function
  27 g:
  28 .LFB0:
  29         .file 1 "gdb.arch/amd64-tailcall-ret.c"
  30         # gdb.arch/amd64-tailcall-ret.c:22
  31         .loc 1 22 0
  32         .cfi_startproc
  33 # BLOCK 2 freq:10000 seq:0
  34 # PRED: ENTRY [100.0%]  (fallthru)
  35         # gdb.arch/amd64-tailcall-ret.c:23
  36         .loc 1 23 0
  37         movl    $2, v(%rip)
  38 # SUCC: EXIT [100.0%]
  39         ret
  40         .cfi_endproc
  41 .LFE0:
  42         .size   g, .-g
  43         .p2align 4,,15
  44         .type   f, @function
  45 f:
  46 .LFB1:
  47         # gdb.arch/amd64-tailcall-ret.c:28
  48         .loc 1 28 0
  49         .cfi_startproc
  50 # BLOCK 2 freq:10000 seq:0
  51 # PRED: ENTRY [100.0%]  (fallthru)
  52         # gdb.arch/amd64-tailcall-ret.c:29
  53         .loc 1 29 0
  54         jmp     g
  55 # SUCC: EXIT [100.0%]  (ab,sibcall)
  56 .LVL0:
  57         .cfi_endproc
  58 .LFE1:
  59         .size   f, .-f
  60         .section        .text.startup,"ax",@progbits
  61         .p2align 4,,15
  62         .globl  main
  63         .type   main, @function
  64 main:
  65 .LFB2:
  66         # gdb.arch/amd64-tailcall-ret.c:34
  67         .loc 1 34 0
  68         .cfi_startproc
  69 # BLOCK 2 freq:10000 seq:0
  70 # PRED: ENTRY [100.0%]  (fallthru)
  71         # gdb.arch/amd64-tailcall-ret.c:35
  72         .loc 1 35 0
  73         call    f
  74 .LVL1:
  75         # gdb.arch/amd64-tailcall-ret.c:36
  76         .loc 1 36 0
  77         call    f
  78 .LVL2:
  79         # gdb.arch/amd64-tailcall-ret.c:37
  80         .loc 1 37 0
  81         movl    $3, v(%rip)
  82         # gdb.arch/amd64-tailcall-ret.c:39
  83         .loc 1 39 0
  84         xorl    %eax, %eax
  85 # SUCC: EXIT [100.0%]
  86         ret
  87         .cfi_endproc
  88 .LFE2:
  89         .size   main, .-main
  90         .comm   v,4,4
  91         .text
  92 .Letext0:
  93         .section        .debug_info,"",@progbits
  94 .Ldebug_info0:
  95         .long   0xd5    # Length of Compilation Unit Info
  96         .value  0x2     # DWARF version number
  97         .long   .Ldebug_abbrev0 # Offset Into Abbrev. Section
  98         .byte   0x8     # Pointer Size (in bytes)
  99         .uleb128 0x1    # (DIE (0xb) DW_TAG_compile_unit)
 100         .long   .LASF0  # DW_AT_producer: "GNU C 4.7.2 20120911 (prerelease)"
 101         .byte   0x1     # DW_AT_language
 102         .long   .LASF1  # DW_AT_name: "gdb.arch/amd64-tailcall-ret.c"
 103         .long   .LASF2  # DW_AT_comp_dir: ""
 104         .long   .Ldebug_ranges0+0       # DW_AT_ranges
 105         .quad   0       # DW_AT_low_pc
 106         .quad   0       # DW_AT_entry_pc
 107         .long   .Ldebug_line0   # DW_AT_stmt_list
 108         .uleb128 0x2    # (DIE (0x31) DW_TAG_subprogram)
 109         .ascii "g\0"    # DW_AT_name
 110         .byte   0x1     # DW_AT_decl_file (gdb.arch/amd64-tailcall-ret.c)
 111         .byte   0x15    # DW_AT_decl_line
 112         .byte   0x1     # DW_AT_prototyped
 113         .quad   .LFB0   # DW_AT_low_pc
 114         .quad   .LFE0   # DW_AT_high_pc
 115         .byte   0x2     # DW_AT_frame_base
 116         .byte   0x77    # DW_OP_breg7
 117         .sleb128 8
 118         .byte   0x1     # DW_AT_GNU_all_call_sites
 119         .uleb128 0x3    # (DIE (0x4b) DW_TAG_subprogram)
 120         .ascii "f\0"    # DW_AT_name
 121         .byte   0x1     # DW_AT_decl_file (gdb.arch/amd64-tailcall-ret.c)
 122         .byte   0x1b    # DW_AT_decl_line
 123         .byte   0x1     # DW_AT_prototyped
 124         .quad   .LFB1   # DW_AT_low_pc
 125         .quad   .LFE1   # DW_AT_high_pc
 126         .byte   0x2     # DW_AT_frame_base
 127         .byte   0x77    # DW_OP_breg7
 128         .sleb128 8
 129         .byte   0x1     # DW_AT_GNU_all_call_sites
 130         .long   0x78    # DW_AT_sibling
 131         .uleb128 0x4    # (DIE (0x69) DW_TAG_GNU_call_site)
 132         .quad   .LVL0   # DW_AT_low_pc
 133         .byte   0x1     # DW_AT_GNU_tail_call
 134         .long   0x31    # DW_AT_abstract_origin
 135         .byte   0       # end of children of DIE 0x4b
 136         .uleb128 0x5    # (DIE (0x78) DW_TAG_subprogram)
 137         .byte   0x1     # DW_AT_external
 138         .long   .LASF3  # DW_AT_name: "main"
 139         .byte   0x1     # DW_AT_decl_file (gdb.arch/amd64-tailcall-ret.c)
 140         .byte   0x21    # DW_AT_decl_line
 141         .byte   0x1     # DW_AT_prototyped
 142         .long   0xb8    # DW_AT_type
 143         .quad   .LFB2   # DW_AT_low_pc
 144         .quad   .LFE2   # DW_AT_high_pc
 145         .byte   0x2     # DW_AT_frame_base
 146         .byte   0x77    # DW_OP_breg7
 147         .sleb128 8
 148         .byte   0x1     # DW_AT_GNU_all_call_sites
 149         .long   0xb8    # DW_AT_sibling
 150         .uleb128 0x6    # (DIE (0x9d) DW_TAG_GNU_call_site)
 151         .quad   .LVL1   # DW_AT_low_pc
 152         .long   0x4b    # DW_AT_abstract_origin
 153         .uleb128 0x6    # (DIE (0xaa) DW_TAG_GNU_call_site)
 154         .quad   .LVL2   # DW_AT_low_pc
 155         .long   0x4b    # DW_AT_abstract_origin
 156         .byte   0       # end of children of DIE 0x78
 157         .uleb128 0x7    # (DIE (0xb8) DW_TAG_base_type)
 158         .byte   0x4     # DW_AT_byte_size
 159         .byte   0x5     # DW_AT_encoding
 160         .ascii "int\0"  # DW_AT_name
 161         .uleb128 0x8    # (DIE (0xbf) DW_TAG_variable)
 162         .ascii "v\0"    # DW_AT_name
 163         .byte   0x1     # DW_AT_decl_file (gdb.arch/amd64-tailcall-ret.c)
 164         .byte   0x12    # DW_AT_decl_line
 165         .long   0xd3    # DW_AT_type
 166         .byte   0x1     # DW_AT_external
 167         .byte   0x9     # DW_AT_location
 168         .byte   0x3     # DW_OP_addr
 169         .quad   v
 170         .uleb128 0x9    # (DIE (0xd3) DW_TAG_volatile_type)
 171         .long   0xb8    # DW_AT_type
 172         .byte   0       # end of children of DIE 0xb
 173         .section        .debug_abbrev,"",@progbits
 174 .Ldebug_abbrev0:
 175         .uleb128 0x1    # (abbrev code)
 176         .uleb128 0x11   # (TAG: DW_TAG_compile_unit)
 177         .byte   0x1     # DW_children_yes
 178         .uleb128 0x25   # (DW_AT_producer)
 179         .uleb128 0xe    # (DW_FORM_strp)
 180         .uleb128 0x13   # (DW_AT_language)
 181         .uleb128 0xb    # (DW_FORM_data1)
 182         .uleb128 0x3    # (DW_AT_name)
 183         .uleb128 0xe    # (DW_FORM_strp)
 184         .uleb128 0x1b   # (DW_AT_comp_dir)
 185         .uleb128 0xe    # (DW_FORM_strp)
 186         .uleb128 0x55   # (DW_AT_ranges)
 187         .uleb128 0x6    # (DW_FORM_data4)
 188         .uleb128 0x11   # (DW_AT_low_pc)
 189         .uleb128 0x1    # (DW_FORM_addr)
 190         .uleb128 0x52   # (DW_AT_entry_pc)
 191         .uleb128 0x1    # (DW_FORM_addr)
 192         .uleb128 0x10   # (DW_AT_stmt_list)
 193         .uleb128 0x6    # (DW_FORM_data4)
 194         .byte   0
 195         .byte   0
 196         .uleb128 0x2    # (abbrev code)
 197         .uleb128 0x2e   # (TAG: DW_TAG_subprogram)
 198         .byte   0       # DW_children_no
 199         .uleb128 0x3    # (DW_AT_name)
 200         .uleb128 0x8    # (DW_FORM_string)
 201         .uleb128 0x3a   # (DW_AT_decl_file)
 202         .uleb128 0xb    # (DW_FORM_data1)
 203         .uleb128 0x3b   # (DW_AT_decl_line)
 204         .uleb128 0xb    # (DW_FORM_data1)
 205         .uleb128 0x27   # (DW_AT_prototyped)
 206         .uleb128 0xc    # (DW_FORM_flag)
 207         .uleb128 0x11   # (DW_AT_low_pc)
 208         .uleb128 0x1    # (DW_FORM_addr)
 209         .uleb128 0x12   # (DW_AT_high_pc)
 210         .uleb128 0x1    # (DW_FORM_addr)
 211         .uleb128 0x40   # (DW_AT_frame_base)
 212         .uleb128 0xa    # (DW_FORM_block1)
 213         .uleb128 0x2117 # (DW_AT_GNU_all_call_sites)
 214         .uleb128 0xc    # (DW_FORM_flag)
 215         .byte   0
 216         .byte   0
 217         .uleb128 0x3    # (abbrev code)
 218         .uleb128 0x2e   # (TAG: DW_TAG_subprogram)
 219         .byte   0x1     # DW_children_yes
 220         .uleb128 0x3    # (DW_AT_name)
 221         .uleb128 0x8    # (DW_FORM_string)
 222         .uleb128 0x3a   # (DW_AT_decl_file)
 223         .uleb128 0xb    # (DW_FORM_data1)
 224         .uleb128 0x3b   # (DW_AT_decl_line)
 225         .uleb128 0xb    # (DW_FORM_data1)
 226         .uleb128 0x27   # (DW_AT_prototyped)
 227         .uleb128 0xc    # (DW_FORM_flag)
 228         .uleb128 0x11   # (DW_AT_low_pc)
 229         .uleb128 0x1    # (DW_FORM_addr)
 230         .uleb128 0x12   # (DW_AT_high_pc)
 231         .uleb128 0x1    # (DW_FORM_addr)
 232         .uleb128 0x40   # (DW_AT_frame_base)
 233         .uleb128 0xa    # (DW_FORM_block1)
 234         .uleb128 0x2117 # (DW_AT_GNU_all_call_sites)
 235         .uleb128 0xc    # (DW_FORM_flag)
 236         .uleb128 0x1    # (DW_AT_sibling)
 237         .uleb128 0x13   # (DW_FORM_ref4)
 238         .byte   0
 239         .byte   0
 240         .uleb128 0x4    # (abbrev code)
 241         .uleb128 0x4109 # (TAG: DW_TAG_GNU_call_site)
 242         .byte   0       # DW_children_no
 243         .uleb128 0x11   # (DW_AT_low_pc)
 244         .uleb128 0x1    # (DW_FORM_addr)
 245         .uleb128 0x2115 # (DW_AT_GNU_tail_call)
 246         .uleb128 0xc    # (DW_FORM_flag)
 247         .uleb128 0x31   # (DW_AT_abstract_origin)
 248         .uleb128 0x13   # (DW_FORM_ref4)
 249         .byte   0
 250         .byte   0
 251         .uleb128 0x5    # (abbrev code)
 252         .uleb128 0x2e   # (TAG: DW_TAG_subprogram)
 253         .byte   0x1     # DW_children_yes
 254         .uleb128 0x3f   # (DW_AT_external)
 255         .uleb128 0xc    # (DW_FORM_flag)
 256         .uleb128 0x3    # (DW_AT_name)
 257         .uleb128 0xe    # (DW_FORM_strp)
 258         .uleb128 0x3a   # (DW_AT_decl_file)
 259         .uleb128 0xb    # (DW_FORM_data1)
 260         .uleb128 0x3b   # (DW_AT_decl_line)
 261         .uleb128 0xb    # (DW_FORM_data1)
 262         .uleb128 0x27   # (DW_AT_prototyped)
 263         .uleb128 0xc    # (DW_FORM_flag)
 264         .uleb128 0x49   # (DW_AT_type)
 265         .uleb128 0x13   # (DW_FORM_ref4)
 266         .uleb128 0x11   # (DW_AT_low_pc)
 267         .uleb128 0x1    # (DW_FORM_addr)
 268         .uleb128 0x12   # (DW_AT_high_pc)
 269         .uleb128 0x1    # (DW_FORM_addr)
 270         .uleb128 0x40   # (DW_AT_frame_base)
 271         .uleb128 0xa    # (DW_FORM_block1)
 272         .uleb128 0x2117 # (DW_AT_GNU_all_call_sites)
 273         .uleb128 0xc    # (DW_FORM_flag)
 274         .uleb128 0x1    # (DW_AT_sibling)
 275         .uleb128 0x13   # (DW_FORM_ref4)
 276         .byte   0
 277         .byte   0
 278         .uleb128 0x6    # (abbrev code)
 279         .uleb128 0x4109 # (TAG: DW_TAG_GNU_call_site)
 280         .byte   0       # DW_children_no
 281         .uleb128 0x11   # (DW_AT_low_pc)
 282         .uleb128 0x1    # (DW_FORM_addr)
 283         .uleb128 0x31   # (DW_AT_abstract_origin)
 284         .uleb128 0x13   # (DW_FORM_ref4)
 285         .byte   0
 286         .byte   0
 287         .uleb128 0x7    # (abbrev code)
 288         .uleb128 0x24   # (TAG: DW_TAG_base_type)
 289         .byte   0       # DW_children_no
 290         .uleb128 0xb    # (DW_AT_byte_size)
 291         .uleb128 0xb    # (DW_FORM_data1)
 292         .uleb128 0x3e   # (DW_AT_encoding)
 293         .uleb128 0xb    # (DW_FORM_data1)
 294         .uleb128 0x3    # (DW_AT_name)
 295         .uleb128 0x8    # (DW_FORM_string)
 296         .byte   0
 297         .byte   0
 298         .uleb128 0x8    # (abbrev code)
 299         .uleb128 0x34   # (TAG: DW_TAG_variable)
 300         .byte   0       # DW_children_no
 301         .uleb128 0x3    # (DW_AT_name)
 302         .uleb128 0x8    # (DW_FORM_string)
 303         .uleb128 0x3a   # (DW_AT_decl_file)
 304         .uleb128 0xb    # (DW_FORM_data1)
 305         .uleb128 0x3b   # (DW_AT_decl_line)
 306         .uleb128 0xb    # (DW_FORM_data1)
 307         .uleb128 0x49   # (DW_AT_type)
 308         .uleb128 0x13   # (DW_FORM_ref4)
 309         .uleb128 0x3f   # (DW_AT_external)
 310         .uleb128 0xc    # (DW_FORM_flag)
 311         .uleb128 0x2    # (DW_AT_location)
 312         .uleb128 0xa    # (DW_FORM_block1)
 313         .byte   0
 314         .byte   0
 315         .uleb128 0x9    # (abbrev code)
 316         .uleb128 0x35   # (TAG: DW_TAG_volatile_type)
 317         .byte   0       # DW_children_no
 318         .uleb128 0x49   # (DW_AT_type)
 319         .uleb128 0x13   # (DW_FORM_ref4)
 320         .byte   0
 321         .byte   0
 322         .byte   0
 323         .section        .debug_aranges,"",@progbits
 324         .long   0x3c    # Length of Address Ranges Info
 325         .value  0x2     # DWARF Version
 326         .long   .Ldebug_info0   # Offset of Compilation Unit Info
 327         .byte   0x8     # Size of Address
 328         .byte   0       # Size of Segment Descriptor
 329         .value  0       # Pad to 16 byte boundary
 330         .value  0
 331         .quad   .Ltext0 # Address
 332         .quad   .Letext0-.Ltext0        # Length
 333         .quad   .LFB2   # Address
 334         .quad   .LFE2-.LFB2     # Length
 335         .quad   0
 336         .quad   0
 337         .section        .debug_ranges,"",@progbits
 338 .Ldebug_ranges0:
 339         .quad   .Ltext0 # Offset 0
 340         .quad   .Letext0
 341         .quad   .LFB2   # Offset 0x10
 342         .quad   .LFE2
 343         .quad   0
 344         .quad   0
 345         .section        .debug_line,"",@progbits
 346 .Ldebug_line0:
 347         .section        .debug_str,"MS",@progbits,1
 348 .LASF0:
 349         .string "GNU C 4.7.2 20120911 (prerelease)"
 350 .LASF1:
 351         .string "gdb.arch/amd64-tailcall-ret.c"
 352 .LASF2:
 353         .string ""
 354 .LASF3:
 355         .string "main"
 356         .ident  "GCC: (GNU) 4.7.2 20120911 (prerelease)"
 357         .section        .note.GNU-stack,"",@progbits