llvm/test/tools/llvm-dwp/X86/empty_warning.s

   1 # RUN: llvm-mc --triple=x86_64-unknown-linux --filetype=obj -dwarf-version=4 %s -o %t.o
   2 # RUN: llvm-dwp -e %t.o -o %t.dwp 2>&1 | FileCheck %s --check-prefix=CHECK-WARNING
   3
   4 # CHECK-WARNING: warning: executable file does not contain any references to dwo files
   5
   6 .ifdef GEN
   7 ;--- main.c
   8 int main() {
   9     return 0;
  10 }
  11 ;--- gen
  12 clang -g -S -gdwarf-4 main.c -o -
  13 .endif
  14         .text
  15         .file   "main.c"
  16         .globl  main                            # -- Begin function main
  17         .p2align        4, 0x90
  18         .type   main,@function
  19 main:                                   # @main
  20 .Lfunc_begin0:
  21         .file   1 "/proc/self/cwd" "main.c"
  22         .loc    1 8 0                           # main.c:8:0
  23         .cfi_startproc
  24 # %bb.0:                                # %entry
  25         pushq   %rbp
  26         .cfi_def_cfa_offset 16
  27         .cfi_offset %rbp, -16
  28         movq    %rsp, %rbp
  29         .cfi_def_cfa_register %rbp
  30         xorl    %eax, %eax
  31         movl    $0, -4(%rbp)
  32 .Ltmp0:
  33         .loc    1 9 5 prologue_end              # main.c:9:5
  34         popq    %rbp
  35         .cfi_def_cfa %rsp, 8
  36         retq
  37 .Ltmp1:
  38 .Lfunc_end0:
  39         .size   main, .Lfunc_end0-main
  40         .cfi_endproc
  41                                         # -- End function
  42         .section        .debug_abbrev,"",@progbits
  43         .byte   1                               # Abbreviation Code
  44         .byte   17                              # DW_TAG_compile_unit
  45         .byte   1                               # DW_CHILDREN_yes
  46         .byte   37                              # DW_AT_producer
  47         .byte   14                              # DW_FORM_strp
  48         .byte   19                              # DW_AT_language
  49         .byte   5                               # DW_FORM_data2
  50         .byte   3                               # DW_AT_name
  51         .byte   14                              # DW_FORM_strp
  52         .byte   16                              # DW_AT_stmt_list
  53         .byte   23                              # DW_FORM_sec_offset
  54         .byte   27                              # DW_AT_comp_dir
  55         .byte   14                              # DW_FORM_strp
  56         .byte   17                              # DW_AT_low_pc
  57         .byte   1                               # DW_FORM_addr
  58         .byte   18                              # DW_AT_high_pc
  59         .byte   6                               # DW_FORM_data4
  60         .byte   0                               # EOM(1)
  61         .byte   0                               # EOM(2)
  62         .byte   2                               # Abbreviation Code
  63         .byte   46                              # DW_TAG_subprogram
  64         .byte   0                               # DW_CHILDREN_no
  65         .byte   17                              # DW_AT_low_pc
  66         .byte   1                               # DW_FORM_addr
  67         .byte   18                              # DW_AT_high_pc
  68         .byte   6                               # DW_FORM_data4
  69         .byte   64                              # DW_AT_frame_base
  70         .byte   24                              # DW_FORM_exprloc
  71         .byte   3                               # DW_AT_name
  72         .byte   14                              # DW_FORM_strp
  73         .byte   58                              # DW_AT_decl_file
  74         .byte   11                              # DW_FORM_data1
  75         .byte   59                              # DW_AT_decl_line
  76         .byte   11                              # DW_FORM_data1
  77         .byte   73                              # DW_AT_type
  78         .byte   19                              # DW_FORM_ref4
  79         .byte   63                              # DW_AT_external
  80         .byte   25                              # DW_FORM_flag_present
  81         .byte   0                               # EOM(1)
  82         .byte   0                               # EOM(2)
  83         .byte   3                               # Abbreviation Code
  84         .byte   36                              # DW_TAG_base_type
  85         .byte   0                               # DW_CHILDREN_no
  86         .byte   3                               # DW_AT_name
  87         .byte   14                              # DW_FORM_strp
  88         .byte   62                              # DW_AT_encoding
  89         .byte   11                              # DW_FORM_data1
  90         .byte   11                              # DW_AT_byte_size
  91         .byte   11                              # DW_FORM_data1
  92         .byte   0                               # EOM(1)
  93         .byte   0                               # EOM(2)
  94         .byte   0                               # EOM(3)
  95         .section        .debug_info,"",@progbits
  96 .Lcu_begin0:
  97         .long   .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit
  98 .Ldebug_info_start0:
  99         .short  4                               # DWARF version number
 100         .long   .debug_abbrev                   # Offset Into Abbrev. Section
 101         .byte   8                               # Address Size (in bytes)
 102         .byte   1                               # Abbrev [1] 0xb:0x40 DW_TAG_compile_unit
 103         .long   .Linfo_string0                  # DW_AT_producer
 104         .short  12                              # DW_AT_language
 105         .long   .Linfo_string1                  # DW_AT_name
 106         .long   .Lline_table_start0             # DW_AT_stmt_list
 107         .long   .Linfo_string2                  # DW_AT_comp_dir
 108         .quad   .Lfunc_begin0                   # DW_AT_low_pc
 109         .long   .Lfunc_end0-.Lfunc_begin0       # DW_AT_high_pc
 110         .byte   2                               # Abbrev [2] 0x2a:0x19 DW_TAG_subprogram
 111         .quad   .Lfunc_begin0                   # DW_AT_low_pc
 112         .long   .Lfunc_end0-.Lfunc_begin0       # DW_AT_high_pc
 113         .byte   1                               # DW_AT_frame_base
 114         .byte   86
 115         .long   .Linfo_string3                  # DW_AT_name
 116         .byte   1                               # DW_AT_decl_file
 117         .byte   8                               # DW_AT_decl_line
 118         .long   67                              # DW_AT_type
 119                                         # DW_AT_external
 120         .byte   3                               # Abbrev [3] 0x43:0x7 DW_TAG_base_type
 121         .long   .Linfo_string4                  # DW_AT_name
 122         .byte   5                               # DW_AT_encoding
 123         .byte   4                               # DW_AT_byte_size
 124         .byte   0                               # End Of Children Mark
 125 .Ldebug_info_end0:
 126         .section        .debug_str,"MS",@progbits,1
 127 .Linfo_string0:
 128         .byte   0                               # string offset=0
 129 .Linfo_string1:
 130         .asciz  "main.c"                        # string offset=1
 131 .Linfo_string2:
 132         .asciz  "/proc/self/cwd"                # string offset=8
 133 .Linfo_string3:
 134         .asciz  "main"                          # string offset=23
 135 .Linfo_string4:
 136         .asciz  "int"                           # string offset=28
 137         .section        .GCC.command.line,"MS",@progbits,1
 138         .zero   1
 139         .ascii  "/usr/local/bin/clang-11 -Qn -g -S -gdwarf-4 main.c -o -"
 140         .zero   1
 141         .section        .debug_str,"MS",@progbits,1
 142         .section        ".note.GNU-stack","",@progbits
 143         .addrsig
 144         .section        .debug_line,"",@progbits
 145 .Lline_table_start0: