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1# REQUIRES: system-linux2 3# RUN: llvm-mc -dwarf-version=4 -filetype=obj -triple x86_64-unknown-linux %s -o %t.o4# RUN: %clang %cflags -gdwarf-4 %t.o -o %t.exe5# RUN: llvm-bolt %t.exe -o %t.bolt --update-debug-sections6# RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.bolt | FileCheck --check-prefix=POSTCHECK %s7 8## This test checks that BOLT handles DW_AT_sibling.9 10## The assembly was manually modified to do cross CU reference.11 12# POSTCHECK: version = 0x000413# POSTCHECK: DW_TAG_structure_type [5]14# POSTCHECK: DW_AT_sibling [DW_FORM_ref4] (cu + 0x0062 => {0x00000062})15# POSTCHECK-EMPTY:16# POSTCHECK-NEXT: DW_TAG_typedef [6]17# POSTCHECK-NEXT: DW_AT_type [DW_FORM_ref4] (cu + 0x0059 => {0x00000059} "structure ")18 19# typedef struct20# {21# unsigned a;22# unsigned b;23# } S;24#25# int main() {26# S s;27# s.a = 0x64A40101;28# }29 30 .text31 .file "main.cpp"32 .globl main # -- Begin function main33 .p2align 4, 0x9034 .type main,@function35main: # @main36.Lfunc_begin0:37 .file 1 "/dwarf4-sibling-test" "main.cpp"38 .loc 1 7 0 # main.cpp:7:039 .cfi_startproc40# %bb.0:41 pushq %rbp42 .cfi_def_cfa_offset 1643 .cfi_offset %rbp, -1644 movq %rsp, %rbp45 .cfi_def_cfa_register %rbp46.Ltmp0:47 .loc 1 9 7 prologue_end # main.cpp:9:748 movl $1688469761, -8(%rbp) # imm = 0x64A4010149 .loc 1 10 1 # main.cpp:10:150 xorl %eax, %eax51 .loc 1 10 1 epilogue_begin is_stmt 0 # main.cpp:10:152 popq %rbp53 .cfi_def_cfa %rsp, 854 retq55.Ltmp1:56.Lfunc_end0:57 .size main, .Lfunc_end0-main58 .cfi_endproc59 # -- End function60 .section .debug_abbrev,"",@progbits61 .byte 1 # Abbreviation Code62 .byte 17 # DW_TAG_compile_unit63 .byte 1 # DW_CHILDREN_yes64 .byte 37 # DW_AT_producer65 .byte 14 # DW_FORM_strp66 .byte 19 # DW_AT_language67 .byte 5 # DW_FORM_data268 .byte 3 # DW_AT_name69 .byte 14 # DW_FORM_strp70 .byte 16 # DW_AT_stmt_list71 .byte 23 # DW_FORM_sec_offset72 .byte 27 # DW_AT_comp_dir73 .byte 14 # DW_FORM_strp74 .byte 17 # DW_AT_low_pc75 .byte 1 # DW_FORM_addr76 .byte 18 # DW_AT_high_pc77 .byte 6 # DW_FORM_data478 .byte 0 # EOM(1)79 .byte 0 # EOM(2)80 .byte 2 # Abbreviation Code81 .byte 46 # DW_TAG_subprogram82 .byte 1 # DW_CHILDREN_yes83 .byte 17 # DW_AT_low_pc84 .byte 1 # DW_FORM_addr85 .byte 18 # DW_AT_high_pc86 .byte 6 # DW_FORM_data487 .byte 64 # DW_AT_frame_base88 .byte 24 # DW_FORM_exprloc89 .byte 3 # DW_AT_name90 .byte 14 # DW_FORM_strp91 .byte 58 # DW_AT_decl_file92 .byte 11 # DW_FORM_data193 .byte 59 # DW_AT_decl_line94 .byte 11 # DW_FORM_data195 .byte 73 # DW_AT_type96 .byte 19 # DW_FORM_ref497 .byte 63 # DW_AT_external98 .byte 25 # DW_FORM_flag_present99 .byte 0 # EOM(1)100 .byte 0 # EOM(2)101 .byte 3 # Abbreviation Code102 .byte 52 # DW_TAG_variable103 .byte 0 # DW_CHILDREN_no104 .byte 2 # DW_AT_location105 .byte 24 # DW_FORM_exprloc106 .byte 3 # DW_AT_name107 .byte 14 # DW_FORM_strp108 .byte 58 # DW_AT_decl_file109 .byte 11 # DW_FORM_data1110 .byte 59 # DW_AT_decl_line111 .byte 11 # DW_FORM_data1112 .byte 73 # DW_AT_type113 .byte 19 # DW_FORM_ref4114 .byte 0 # EOM(1)115 .byte 0 # EOM(2)116 .byte 4 # Abbreviation Code117 .byte 36 # DW_TAG_base_type118 .byte 0 # DW_CHILDREN_no119 .byte 3 # DW_AT_name120 .byte 14 # DW_FORM_strp121 .byte 62 # DW_AT_encoding122 .byte 11 # DW_FORM_data1123 .byte 11 # DW_AT_byte_size124 .byte 11 # DW_FORM_data1125 .byte 0 # EOM(1)126 .byte 0 # EOM(2)127 .byte 5 # Abbreviation Code128 .byte 22 # DW_TAG_typedef129 .byte 0 # DW_CHILDREN_no130 .byte 73 # DW_AT_type131 .byte 19 # DW_FORM_ref4132 .byte 3 # DW_AT_name133 .byte 14 # DW_FORM_strp134 .byte 58 # DW_AT_decl_file135 .byte 11 # DW_FORM_data1136 .byte 59 # DW_AT_decl_line137 .byte 11 # DW_FORM_data1138 .byte 0 # EOM(1)139 .byte 0 # EOM(2)140 .byte 6 # Abbreviation Code141 .byte 19 # DW_TAG_structure_type142 .byte 1 # DW_CHILDREN_yes143 .byte 54 # DW_AT_calling_convention144 .byte 11 # DW_FORM_data1145 .byte 11 # DW_AT_byte_size146 .byte 11 # DW_FORM_data1147 .byte 58 # DW_AT_decl_file148 .byte 11 # DW_FORM_data1149 .byte 59 # DW_AT_decl_line150 .byte 11 # DW_FORM_data1151 .byte 1 # DW_AT_sibling <-- manually added152 .byte 19 # DW_FORM_ref4153 .byte 0 # EOM(1)154 .byte 0 # EOM(2)155 .byte 7 # Abbreviation Code156 .byte 13 # DW_TAG_member157 .byte 0 # DW_CHILDREN_no158 .byte 3 # DW_AT_name159 .byte 14 # DW_FORM_strp160 .byte 73 # DW_AT_type161 .byte 19 # DW_FORM_ref4162 .byte 58 # DW_AT_decl_file163 .byte 11 # DW_FORM_data1164 .byte 59 # DW_AT_decl_line165 .byte 11 # DW_FORM_data1166 .byte 56 # DW_AT_data_member_location167 .byte 11 # DW_FORM_data1168 .byte 0 # EOM(1)169 .byte 0 # EOM(2)170 .byte 0 # EOM(3)171 .section .debug_info,"",@progbits172.Lcu_begin0:173 .long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit174.Ldebug_info_start0:175 .short 4 # DWARF version number176 .long .debug_abbrev # Offset Into Abbrev. Section177 .byte 8 # Address Size (in bytes)178 .byte 1 # Abbrev [1] 0xb:0x7f DW_TAG_compile_unit179 .long .Linfo_string0 # DW_AT_producer180 .short 33 # DW_AT_language181 .long .Linfo_string1 # DW_AT_name182 .long .Lline_table_start0 # DW_AT_stmt_list183 .long .Linfo_string2 # DW_AT_comp_dir184 .quad .Lfunc_begin0 # DW_AT_low_pc185 .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc186 .byte 2 # Abbrev [2] 0x2a:0x28 DW_TAG_subprogram187 .quad .Lfunc_begin0 # DW_AT_low_pc188 .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc189 .byte 1 # DW_AT_frame_base190 .byte 86191 .long .Linfo_string3 # DW_AT_name192 .byte 1 # DW_AT_decl_file193 .byte 7 # DW_AT_decl_line194 .long 82 # DW_AT_type195 # DW_AT_external196 .byte 3 # Abbrev [3] 0x43:0xe DW_TAG_variable197 .byte 2 # DW_AT_location198 .byte 145199 .byte 120200 .long .Linfo_string5 # DW_AT_name201 .byte 1 # DW_AT_decl_file202 .byte 8 # DW_AT_decl_line203 .long 89 # DW_AT_type204 .byte 0 # End Of Children Mark205 .byte 4 # Abbrev [4] 0x52:0x7 DW_TAG_base_type206 .long .Linfo_string4 # DW_AT_name207 .byte 5 # DW_AT_encoding208 .byte 4 # DW_AT_byte_size209.Linfo_structured_type:210 .byte 6 # Abbrev [6] 0x64:0x1e DW_TAG_structure_type211 .byte 5 # DW_AT_calling_convention212 .byte 8 # DW_AT_byte_size213 .byte 1 # DW_AT_decl_file214 .byte 1 # DW_AT_decl_line215 .long .Linfo_sibling # DW_AT_sibling <-- Manually added216.Linfo_sibling:217 .byte 5 # Abbrev [5] 0x59:0xb DW_TAG_typedef218 .long .Linfo_structured_type # DW_AT_type <-- Manually modified219 .long .Linfo_string9 # DW_AT_name220 .byte 1 # DW_AT_decl_file221 .byte 5 # DW_AT_decl_line222 .byte 7 # Abbrev [7] 0x69:0xc DW_TAG_member223 .long .Linfo_string6 # DW_AT_name224 .long .Linfo_base_type # DW_AT_type225 .byte 1 # DW_AT_decl_file226 .byte 3 # DW_AT_decl_line227 .byte 0 # DW_AT_data_member_location228 .byte 7 # Abbrev [7] 0x75:0xc DW_TAG_member229 .long .Linfo_string8 # DW_AT_name230 .long .Linfo_base_type # DW_AT_type231 .byte 1 # DW_AT_decl_file232 .byte 4 # DW_AT_decl_line233 .byte 4 # DW_AT_data_member_location234 .byte 0 # End Of Children Mark235.Linfo_base_type:236 .byte 4 # Abbrev [4] 0x82:0x7 DW_TAG_base_type237 .long .Linfo_string7 # DW_AT_name238 .byte 7 # DW_AT_encoding239 .byte 4 # DW_AT_byte_size240 .byte 0 # End Of Children Mark241.Ldebug_info_end0:242 .section .debug_str,"MS",@progbits,1243.Linfo_string0:244 .asciz "clang version 15.0.0" # string offset=0245.Linfo_string1:246 .asciz "main.cpp" # string offset=146247.Linfo_string2:248 .asciz "/dwarf4-sibling-test" # string offset=155249.Linfo_string3:250 .asciz "main" # string offset=213251.Linfo_string4:252 .asciz "int" # string offset=218253.Linfo_string5:254 .asciz "s" # string offset=222255.Linfo_string6:256 .asciz "a" # string offset=224257.Linfo_string7:258 .asciz "unsigned int" # string offset=226259.Linfo_string8:260 .asciz "b" # string offset=239261.Linfo_string9:262 .asciz "S" # string offset=241263 .ident "clang version 15.0.0"264 .section ".note.GNU-stack","",@progbits265 .addrsig266 .section .debug_line,"",@progbits267.Lline_table_start0:268