bolt/test/X86/high_pc_udata.s

   1 # REQUIRES: system-linux
   2
   3 # RUN: llvm-mc -filetype=obj -triple x86_64-unknown-linux %s -o %t1.o
   4 # RUN: %clang %cflags %t1.o -o %t.exe -Wl,-q
   5 # RUN: llvm-bolt %t.exe -o %t.bolt --update-debug-sections
   6 # RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.exe | FileCheck --check-prefix=PRECHECK %s
   7 # RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.bolt | FileCheck --check-prefix=POSTCHECK %s
   8
   9 # PRECHECK: DW_AT_high_pc [DW_FORM_udata]       (15)
  10 # PRECHECK-NEXT: DW_AT_name [DW_FORM_strp]
  11 # PRECHECK-SAME: "main.cpp"
  12
  13 # POSTCHECK: DW_AT_ranges [DW_FORM_sec_offset]
  14 # POSTCHECK-NEXT: [
  15 # POSTCHECK-NEXT: DW_AT_name [DW_FORM_strp]
  16 # POSTCHECK-SAME: "main.cpp"
  17
  18 # Testing that BOLT transforms DW_AT_high_pc of form DW_FORM_udata correctly into DW_AT_ranges.
  19 # Manually changed so that DW_AT_high_pc is DW_FORM_udata, and that DW_AT_name is after it.
  20 # int main() {
  21 #    return 0;
  22 # }
  23 .text
  24         .file   "main.cpp"
  25         .globl  main                            # -- Begin function main
  26         .p2align        4, 0x90
  27         .type   main,@function
  28 main:                                   # @main
  29 .Lfunc_begin0:
  30         .file   1 "" "main.cpp"
  31         .loc    1 1 0                           # main.cpp:1:0
  32         .cfi_startproc
  33 # %bb.0:                                # %entry
  34         pushq   %rbp
  35         .cfi_def_cfa_offset 16
  36         .cfi_offset %rbp, -16
  37         movq    %rsp, %rbp
  38         .cfi_def_cfa_register %rbp
  39         movl    $0, -4(%rbp)
  40 .Ltmp0:
  41         .loc    1 2 1 prologue_end              # main.cpp:2:1
  42         xorl    %eax, %eax
  43         popq    %rbp
  44         .cfi_def_cfa %rsp, 8
  45         retq
  46 .Ltmp1:
  47 .Lfunc_end0:
  48         .size   main, .Lfunc_end0-main
  49         .cfi_endproc
  50                                         # -- End function
  51         .section        .debug_abbrev,"",@progbits
  52         .byte   1                               # Abbreviation Code
  53         .byte   17                              # DW_TAG_compile_unit
  54         .byte   1                               # DW_CHILDREN_yes
  55         .byte   37                              # DW_AT_producer
  56         .byte   14                              # DW_FORM_strp
  57         .byte   19                              # DW_AT_language
  58         .byte   5                               # DW_FORM_data2
  59         .byte   16                              # DW_AT_stmt_list
  60         .byte   23                              # DW_FORM_sec_offset
  61         .byte   27                              # DW_AT_comp_dir
  62         .byte   14                              # DW_FORM_strp
  63         .byte   17                              # DW_AT_low_pc
  64         .byte   1                               # DW_FORM_addr
  65         .byte   18                              # DW_AT_high_pc
  66         .byte   15                              # DW_FORM_udata
  67         .byte   3                               # DW_AT_name
  68         .byte   14                              # DW_FORM_strp
  69         .byte   0                               # EOM(1)
  70         .byte   0                               # EOM(2)
  71         .byte   2                               # Abbreviation Code
  72         .byte   46                              # DW_TAG_subprogram
  73         .byte   0                               # DW_CHILDREN_no
  74         .byte   17                              # DW_AT_low_pc
  75         .byte   1                               # DW_FORM_addr
  76         .byte   18                              # DW_AT_high_pc
  77         .byte   6                               # DW_FORM_data4
  78         .byte   64                              # DW_AT_frame_base
  79         .byte   24                              # DW_FORM_exprloc
  80         .byte   3                               # DW_AT_name
  81         .byte   14                              # DW_FORM_strp
  82         .byte   58                              # DW_AT_decl_file
  83         .byte   11                              # DW_FORM_data1
  84         .byte   59                              # DW_AT_decl_line
  85         .byte   11                              # DW_FORM_data1
  86         .byte   73                              # DW_AT_type
  87         .byte   19                              # DW_FORM_ref4
  88         .byte   63                              # DW_AT_external
  89         .byte   25                              # DW_FORM_flag_present
  90         .byte   0                               # EOM(1)
  91         .byte   0                               # EOM(2)
  92         .byte   3                               # Abbreviation Code
  93         .byte   36                              # DW_TAG_base_type
  94         .byte   0                               # DW_CHILDREN_no
  95         .byte   3                               # DW_AT_name
  96         .byte   14                              # DW_FORM_strp
  97         .byte   62                              # DW_AT_encoding
  98         .byte   11                              # DW_FORM_data1
  99         .byte   11                              # DW_AT_byte_size
 100         .byte   11                              # DW_FORM_data1
 101         .byte   0                               # EOM(1)
 102         .byte   0                               # EOM(2)
 103         .byte   0                               # EOM(3)
 104         .section        .debug_info,"",@progbits
 105 .Lcu_begin0:
 106         .long   .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit
 107 .Ldebug_info_start0:
 108         .short  4                               # DWARF version number
 109         .long   .debug_abbrev                   # Offset Into Abbrev. Section
 110         .byte   8                               # Address Size (in bytes)
 111         .byte   1                               # Abbrev [1] 0xb:0x40 DW_TAG_compile_unit
 112         .long   .Linfo_string0                  # DW_AT_producer
 113         .short  33                              # DW_AT_language
 114         .long   .Lline_table_start0             # DW_AT_stmt_list
 115         .long   .Linfo_string2                  # DW_AT_comp_dir
 116         .quad   .Lfunc_begin0                   # DW_AT_low_pc
 117         .byte   .Lfunc_end0-.Lfunc_begin0       # DW_AT_high_pc
 118         .long   .Linfo_string1                  # DW_AT_name
 119         .byte   2                               # Abbrev [2] 0x2a:0x19 DW_TAG_subprogram
 120         .quad   .Lfunc_begin0                   # DW_AT_low_pc
 121         .long   .Lfunc_end0-.Lfunc_begin0       # DW_AT_high_pc
 122         .byte   1                               # DW_AT_frame_base
 123         .byte   86
 124         .long   .Linfo_string3                  # DW_AT_name
 125         .byte   1                               # DW_AT_decl_file
 126         .byte   1                               # DW_AT_decl_line
 127         .long   64                              # DW_AT_type
 128                                         # DW_AT_external
 129         .byte   3                               # Abbrev [3] 0x43:0x7 DW_TAG_base_type
 130         .long   .Linfo_string4                  # DW_AT_name
 131         .byte   5                               # DW_AT_encoding
 132         .byte   4                               # DW_AT_byte_size
 133         .byte   0                               # End Of Children Mark
 134 .Ldebug_info_end0:
 135         .section        .debug_str,"MS",@progbits,1
 136 .Linfo_string0:
 137         .asciz  "clang" # string offset=0
 138 .Linfo_string1:
 139         .asciz  "main.cpp"                      # string offset=134
 140 .Linfo_string2:
 141         .asciz  "test" # string offset=143
 142 .Linfo_string3:
 143         .asciz  "main"                          # string offset=186
 144 .Linfo_string4:
 145         .asciz  "int"                           # string offset=191
 146         .ident  "clang"
 147         .section        ".note.GNU-stack","",@progbits
 148         .addrsig
 149         .section        .debug_line,"",@progbits
 150 .Lline_table_start0: