lld/test/ELF/gdb-index-gc-sections.s

   1 # REQUIRES: x86
   2 # RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux -o %t %s
   3 # RUN: ld.lld --gdb-index --gc-sections -o %t2 %t
   4 # RUN: llvm-dwarfdump -gdb-index %t2 | FileCheck %s
   5
   6 # CHECK: Address area offset = 0x28, has 1 entries:
   7 # CHECK-NEXT:    Low/High address = [0x201150, 0x201151) (Size: 0x1), CU id = 0
   8
   9 # Generated with: (clang r302976)
  10 # echo "void _start() {} void dead() {}" | \
  11 # clang -Os -g -S -ffunction-sections -o gdb-index-gc-sections.s -x c - -Xclang -fdebug-compilation-dir -Xclang .
  12
  13         .text
  14         .file   "-"
  15         .section        .text._start,"ax",@progbits
  16         .globl  _start
  17         .type   _start,@function
  18 _start:                                 # @_start
  19 .Lfunc_begin0:
  20         .file   1 "<stdin>"
  21         .loc    1 1 0                   # <stdin>:1:0
  22         .cfi_startproc
  23 # BB#0:                                 # %entry
  24         .loc    1 1 16 prologue_end     # <stdin>:1:16
  25         retq
  26 .Ltmp0:
  27 .Lfunc_end0:
  28         .size   _start, .Lfunc_end0-_start
  29         .cfi_endproc
  30
  31         .section        .text.dead,"ax",@progbits
  32         .globl  dead
  33         .type   dead,@function
  34 dead:                                   # @dead
  35 .Lfunc_begin1:
  36         .loc    1 1 0                   # <stdin>:1:0
  37         .cfi_startproc
  38 # BB#0:                                 # %entry
  39         .loc    1 1 31 prologue_end     # <stdin>:1:31
  40         retq
  41 .Ltmp1:
  42 .Lfunc_end1:
  43         .size   dead, .Lfunc_end1-dead
  44         .cfi_endproc
  45
  46         .section        .debug_str,"MS",@progbits,1
  47 .Linfo_string0:
  48         .asciz  "clang version 5.0.0 "  # string offset=0
  49 .Linfo_string1:
  50         .asciz  "-"                     # string offset=21
  51 .Linfo_string2:
  52         .asciz  "."                     # string offset=23
  53 .Linfo_string3:
  54         .asciz  "_start"                # string offset=25
  55 .Linfo_string4:
  56         .asciz  "dead"                  # string offset=32
  57         .section        .debug_loc,"",@progbits
  58         .section        .debug_abbrev,"",@progbits
  59         .byte   1                       # Abbreviation Code
  60         .byte   17                      # DW_TAG_compile_unit
  61         .byte   1                       # DW_CHILDREN_yes
  62         .byte   37                      # DW_AT_producer
  63         .byte   14                      # DW_FORM_strp
  64         .byte   19                      # DW_AT_language
  65         .byte   5                       # DW_FORM_data2
  66         .byte   3                       # DW_AT_name
  67         .byte   14                      # DW_FORM_strp
  68         .byte   16                      # DW_AT_stmt_list
  69         .byte   23                      # DW_FORM_sec_offset
  70         .byte   27                      # DW_AT_comp_dir
  71         .byte   14                      # DW_FORM_strp
  72         .byte   17                      # DW_AT_low_pc
  73         .byte   1                       # DW_FORM_addr
  74         .byte   85                      # DW_AT_ranges
  75         .byte   23                      # DW_FORM_sec_offset
  76         .byte   0                       # EOM(1)
  77         .byte   0                       # EOM(2)
  78         .byte   2                       # Abbreviation Code
  79         .byte   46                      # DW_TAG_subprogram
  80         .byte   0                       # DW_CHILDREN_no
  81         .byte   17                      # DW_AT_low_pc
  82         .byte   1                       # DW_FORM_addr
  83         .byte   18                      # DW_AT_high_pc
  84         .byte   6                       # DW_FORM_data4
  85         .byte   64                      # DW_AT_frame_base
  86         .byte   24                      # DW_FORM_exprloc
  87         .byte   3                       # DW_AT_name
  88         .byte   14                      # DW_FORM_strp
  89         .byte   58                      # DW_AT_decl_file
  90         .byte   11                      # DW_FORM_data1
  91         .byte   59                      # DW_AT_decl_line
  92         .byte   11                      # DW_FORM_data1
  93         .byte   63                      # DW_AT_external
  94         .byte   25                      # DW_FORM_flag_present
  95         .byte   0                       # EOM(1)
  96         .byte   0                       # EOM(2)
  97         .byte   0                       # EOM(3)
  98         .section        .debug_info,"",@progbits
  99 .Lcu_begin0:
 100         .long   81                      # Length of Unit
 101         .short  4                       # DWARF version number
 102         .long   .debug_abbrev           # Offset Into Abbrev. Section
 103         .byte   8                       # Address Size (in bytes)
 104         .byte   1                       # Abbrev [1] 0xb:0x4a DW_TAG_compile_unit
 105         .long   .Linfo_string0          # DW_AT_producer
 106         .short  12                      # DW_AT_language
 107         .long   .Linfo_string1          # DW_AT_name
 108         .long   .Lline_table_start0     # DW_AT_stmt_list
 109         .long   .Linfo_string2          # DW_AT_comp_dir
 110         .quad   0                       # DW_AT_low_pc
 111         .long   .Ldebug_ranges0         # DW_AT_ranges
 112         .byte   2                       # Abbrev [2] 0x2a:0x15 DW_TAG_subprogram
 113         .quad   .Lfunc_begin0           # DW_AT_low_pc
 114         .long   .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc
 115         .byte   1                       # DW_AT_frame_base
 116         .byte   87
 117         .long   .Linfo_string3          # DW_AT_name
 118         .byte   1                       # DW_AT_decl_file
 119         .byte   1                       # DW_AT_decl_line
 120                                         # DW_AT_external
 121         .byte   2                       # Abbrev [2] 0x3f:0x15 DW_TAG_subprogram
 122         .quad   .Lfunc_begin1           # DW_AT_low_pc
 123         .long   .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc
 124         .byte   1                       # DW_AT_frame_base
 125         .byte   87
 126         .long   .Linfo_string4          # DW_AT_name
 127         .byte   1                       # DW_AT_decl_file
 128         .byte   1                       # DW_AT_decl_line
 129                                         # DW_AT_external
 130         .byte   0                       # End Of Children Mark
 131         .section        .debug_ranges,"",@progbits
 132 .Ldebug_ranges0:
 133         .quad   .Lfunc_begin0
 134         .quad   .Lfunc_end0
 135         .quad   .Lfunc_begin1
 136         .quad   .Lfunc_end1
 137         .quad   0
 138         .quad   0
 139         .section        .debug_macinfo,"",@progbits
 140 .Lcu_macro_begin0:
 141         .byte   0                       # End Of Macro List Mark
 142         .section        .debug_pubnames,"",@progbits
 143         .long   .LpubNames_end0-.LpubNames_begin0 # Length of Public Names Info
 144 .LpubNames_begin0:
 145         .short  2                       # DWARF Version
 146         .long   .Lcu_begin0             # Offset of Compilation Unit Info
 147         .long   85                      # Compilation Unit Length
 148         .long   42                      # DIE offset
 149         .asciz  "_start"                # External Name
 150         .long   63                      # DIE offset
 151         .asciz  "dead"                  # External Name
 152         .long   0                       # End Mark
 153 .LpubNames_end0:
 154
 155         .ident  "clang version 5.0.0 "
 156         .section        ".note.GNU-stack","",@progbits
 157         .section        .debug_line,"",@progbits
 158 .Lline_table_start0: