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 = [0x201000, 0x201001) (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 34dead: # @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: 159