1# Show that multiple CUs can have a single common .debug_abbrev table. This can 2# occur due to e.g. LTO. 3 4# REQUIRES: x86-registered-target 5 6# RUN: llvm-mc --filetype=obj --triple=x86_64-pc-linux %s -o %t.o 7# RUN: llvm-symbolizer --obj=%t.o 0 16 --functions=short | FileCheck %s 8 9# CHECK: foo 10# CHECK-NEXT: foo.c:1:0 11 12# CHECK: bar 13# CHECK-NEXT: bar.c:2:0 14 15.global foo 16.type foo,@function 17foo: 18.Lfunc_begin0: 19 .file 1 "." "foo.c" 20 .loc 1 1 0 21 ret 22.Lfunc_end0: 23 24.global bar 25.p2align 4, 0x90 26.type bar,@function 27bar: 28.Lfunc_begin1: 29 .file 2 "." "bar.c" 30 .loc 2 2 0 31 ret 32.Lfunc_end1: 33 34 .section .debug_str,"MS",@progbits,1 35.Linfo_string1: 36 .asciz "foo.c" 37.Linfo_string2: 38 .asciz "." 39.Linfo_string3: 40 .asciz "foo" 41.Linfo_string4: 42 .asciz "bar.c" 43.Linfo_string5: 44 .asciz "bar" 45 46 # Regular .debug_abbrev section with CU and subprogram, but duplicated, with second 47 # half reordered slightly, to show that the correct abbrev is being referenced. 48 .section .debug_abbrev,"",@progbits 49 .byte 1 # Abbreviation Code 50 .byte 17 # DW_TAG_compile_unit 51 .byte 1 # DW_CHILDREN_yes 52 .byte 3 # DW_AT_name 53 .byte 14 # DW_FORM_strp 54 .byte 16 # DW_AT_stmt_list 55 .byte 23 # DW_FORM_sec_offset 56 .byte 27 # DW_AT_comp_dir 57 .byte 14 # DW_FORM_strp 58 .byte 17 # DW_AT_low_pc 59 .byte 1 # DW_FORM_addr 60 .byte 18 # DW_AT_high_pc 61 .byte 6 # DW_FORM_data4 62 .byte 0 # EOM(1) 63 .byte 0 # EOM(2) 64 .byte 2 # Abbreviation Code 65 .byte 46 # DW_TAG_subprogram 66 .byte 0 # DW_CHILDREN_no 67 .byte 17 # DW_AT_low_pc 68 .byte 1 # DW_FORM_addr 69 .byte 18 # DW_AT_high_pc 70 .byte 6 # DW_FORM_data4 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 63 # DW_AT_external 78 .byte 25 # DW_FORM_flag_present 79 .byte 0 # EOM(1) 80 .byte 0 # EOM(2) 81 # Second-half starts here. 82 .byte 3 # Abbreviation Code 83 .byte 17 # DW_TAG_compile_unit 84 .byte 1 # DW_CHILDREN_yes 85 .byte 16 # DW_AT_stmt_list 86 .byte 23 # DW_FORM_sec_offset 87 .byte 27 # DW_AT_comp_dir 88 .byte 14 # DW_FORM_strp 89 .byte 17 # DW_AT_low_pc 90 .byte 1 # DW_FORM_addr 91 .byte 18 # DW_AT_high_pc 92 .byte 6 # DW_FORM_data4 93 .byte 3 # DW_AT_name 94 .byte 14 # DW_FORM_strp 95 .byte 0 # EOM(1) 96 .byte 0 # EOM(2) 97 .byte 4 # Abbreviation Code 98 .byte 46 # DW_TAG_subprogram 99 .byte 0 # DW_CHILDREN_no 100 .byte 17 # DW_AT_low_pc 101 .byte 1 # DW_FORM_addr 102 .byte 18 # DW_AT_high_pc 103 .byte 6 # DW_FORM_data4 104 .byte 58 # DW_AT_decl_file 105 .byte 11 # DW_FORM_data1 106 .byte 59 # DW_AT_decl_line 107 .byte 11 # DW_FORM_data1 108 .byte 63 # DW_AT_external 109 .byte 25 # DW_FORM_flag_present 110 .byte 3 # DW_AT_name 111 .byte 14 # DW_FORM_strp 112 .byte 0 # EOM(1) 113 .byte 0 # EOM(2) 114 .byte 0 # EOM(3) 115 116 .section .debug_info,"",@progbits 117 # First CU table. 118 .long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit 119.Ldebug_info_start0: 120 .short 4 # DWARF version number 121 .long .debug_abbrev # Offset Into Abbrev. Section 122 .byte 8 # Address Size (in bytes) 123 .byte 1 # Abbrev [1] 0xb:0x35 DW_TAG_compile_unit 124 .long .Linfo_string1 # DW_AT_name 125 .long .Lline_table_start0 # DW_AT_stmt_list 126 .long .Linfo_string2 # DW_AT_comp_dir 127 .quad .Lfunc_begin0 # DW_AT_low_pc 128 .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc 129 .byte 2 # Abbrev [2] 0x2a:0x15 DW_TAG_subprogram 130 .quad .Lfunc_begin0 # DW_AT_low_pc 131 .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc 132 .long .Linfo_string3 # DW_AT_name 133 .byte 1 # DW_AT_decl_file 134 .byte 1 # DW_AT_decl_line 135 # DW_AT_external 136 .byte 0 # End Of Children Mark 137.Ldebug_info_end0: 138 139 # Second CU table. 140 .long .Ldebug_info_end1-.Ldebug_info_start1 # Length of Unit 141.Ldebug_info_start1: 142 .short 4 # DWARF version number 143 .long .debug_abbrev # Offset Into Abbrev. Section 144 .byte 8 # Address Size (in bytes) 145 .byte 3 # Abbrev [1] 0xb:0x35 DW_TAG_compile_unit 146 .long .Lline_table_start0 # DW_AT_stmt_list 147 .long .Linfo_string2 # DW_AT_comp_dir 148 .quad .Lfunc_begin1 # DW_AT_low_pc 149 .long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc 150 .long .Linfo_string4 # DW_AT_name 151 .byte 4 # Abbrev [2] 0x2a:0x15 DW_TAG_subprogram 152 .quad .Lfunc_begin1 # DW_AT_low_pc 153 .long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc 154 .byte 1 # DW_AT_decl_file 155 .byte 1 # DW_AT_decl_line 156 # DW_AT_external 157 .long .Linfo_string5 # DW_AT_name 158 .byte 0 # End Of Children Mark 159.Ldebug_info_end1: 160 161 .section .debug_line,"",@progbits 162.Lline_table_start0: 163