| # REQUIRES: system-linux |
| |
| # RUN: llvm-mc -dwarf-version=4 -filetype=obj -triple x86_64-unknown-linux %s -o %t.o |
| # RUN: %clang %cflags -gdwarf-4 %t.o -o %t.exe |
| # RUN: llvm-bolt %t.exe -o %t.bolt --update-debug-sections |
| # RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.bolt | FileCheck --check-prefix=POSTCHECK %s |
| |
| # This test checks that BOLT handles DW_AT_sibling. |
| |
| # The assembly was manually modified to do cross CU reference. |
| |
| # POSTCHECK: version = 0x0004 |
| # POSTCHECK: DW_TAG_structure_type [5] |
| # POSTCHECK: DW_AT_sibling [DW_FORM_ref4] (cu + 0x0062 => {0x00000062}) |
| # POSTCHECK-EMPTY: |
| # POSTCHECK-NEXT: DW_TAG_typedef [6] |
| # POSTCHECK-NEXT: DW_AT_type [DW_FORM_ref4] (cu + 0x0059 => {0x00000059} "structure ") |
| |
| # typedef struct |
| # { |
| # unsigned a; |
| # unsigned b; |
| # } S; |
| # |
| # int main() { |
| # S s; |
| # s.a = 0x64A40101; |
| # } |
| |
| .text |
| .file "main.cpp" |
| .globl main # -- Begin function main |
| .p2align 4, 0x90 |
| .type main,@function |
| main: # @main |
| .Lfunc_begin0: |
| .file 1 "/dwarf4-sibling-test" "main.cpp" |
| .loc 1 7 0 # main.cpp:7:0 |
| .cfi_startproc |
| # %bb.0: |
| pushq %rbp |
| .cfi_def_cfa_offset 16 |
| .cfi_offset %rbp, -16 |
| movq %rsp, %rbp |
| .cfi_def_cfa_register %rbp |
| .Ltmp0: |
| .loc 1 9 7 prologue_end # main.cpp:9:7 |
| movl $1688469761, -8(%rbp) # imm = 0x64A40101 |
| .loc 1 10 1 # main.cpp:10:1 |
| xorl %eax, %eax |
| .loc 1 10 1 epilogue_begin is_stmt 0 # main.cpp:10:1 |
| popq %rbp |
| .cfi_def_cfa %rsp, 8 |
| retq |
| .Ltmp1: |
| .Lfunc_end0: |
| .size main, .Lfunc_end0-main |
| .cfi_endproc |
| # -- End function |
| .section .debug_abbrev,"",@progbits |
| .byte 1 # Abbreviation Code |
| .byte 17 # DW_TAG_compile_unit |
| .byte 1 # DW_CHILDREN_yes |
| .byte 37 # DW_AT_producer |
| .byte 14 # DW_FORM_strp |
| .byte 19 # DW_AT_language |
| .byte 5 # DW_FORM_data2 |
| .byte 3 # DW_AT_name |
| .byte 14 # DW_FORM_strp |
| .byte 16 # DW_AT_stmt_list |
| .byte 23 # DW_FORM_sec_offset |
| .byte 27 # DW_AT_comp_dir |
| .byte 14 # DW_FORM_strp |
| .byte 17 # DW_AT_low_pc |
| .byte 1 # DW_FORM_addr |
| .byte 18 # DW_AT_high_pc |
| .byte 6 # DW_FORM_data4 |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .byte 2 # Abbreviation Code |
| .byte 46 # DW_TAG_subprogram |
| .byte 1 # DW_CHILDREN_yes |
| .byte 17 # DW_AT_low_pc |
| .byte 1 # DW_FORM_addr |
| .byte 18 # DW_AT_high_pc |
| .byte 6 # DW_FORM_data4 |
| .byte 64 # DW_AT_frame_base |
| .byte 24 # DW_FORM_exprloc |
| .byte 3 # DW_AT_name |
| .byte 14 # DW_FORM_strp |
| .byte 58 # DW_AT_decl_file |
| .byte 11 # DW_FORM_data1 |
| .byte 59 # DW_AT_decl_line |
| .byte 11 # DW_FORM_data1 |
| .byte 73 # DW_AT_type |
| .byte 19 # DW_FORM_ref4 |
| .byte 63 # DW_AT_external |
| .byte 25 # DW_FORM_flag_present |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .byte 3 # Abbreviation Code |
| .byte 52 # DW_TAG_variable |
| .byte 0 # DW_CHILDREN_no |
| .byte 2 # DW_AT_location |
| .byte 24 # DW_FORM_exprloc |
| .byte 3 # DW_AT_name |
| .byte 14 # DW_FORM_strp |
| .byte 58 # DW_AT_decl_file |
| .byte 11 # DW_FORM_data1 |
| .byte 59 # DW_AT_decl_line |
| .byte 11 # DW_FORM_data1 |
| .byte 73 # DW_AT_type |
| .byte 19 # DW_FORM_ref4 |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .byte 4 # Abbreviation Code |
| .byte 36 # DW_TAG_base_type |
| .byte 0 # DW_CHILDREN_no |
| .byte 3 # DW_AT_name |
| .byte 14 # DW_FORM_strp |
| .byte 62 # DW_AT_encoding |
| .byte 11 # DW_FORM_data1 |
| .byte 11 # DW_AT_byte_size |
| .byte 11 # DW_FORM_data1 |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .byte 5 # Abbreviation Code |
| .byte 22 # DW_TAG_typedef |
| .byte 0 # DW_CHILDREN_no |
| .byte 73 # DW_AT_type |
| .byte 19 # DW_FORM_ref4 |
| .byte 3 # DW_AT_name |
| .byte 14 # DW_FORM_strp |
| .byte 58 # DW_AT_decl_file |
| .byte 11 # DW_FORM_data1 |
| .byte 59 # DW_AT_decl_line |
| .byte 11 # DW_FORM_data1 |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .byte 6 # Abbreviation Code |
| .byte 19 # DW_TAG_structure_type |
| .byte 1 # DW_CHILDREN_yes |
| .byte 54 # DW_AT_calling_convention |
| .byte 11 # DW_FORM_data1 |
| .byte 11 # DW_AT_byte_size |
| .byte 11 # DW_FORM_data1 |
| .byte 58 # DW_AT_decl_file |
| .byte 11 # DW_FORM_data1 |
| .byte 59 # DW_AT_decl_line |
| .byte 11 # DW_FORM_data1 |
| .byte 1 # DW_AT_sibling <-- manually added |
| .byte 19 # DW_FORM_ref4 |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .byte 7 # Abbreviation Code |
| .byte 13 # DW_TAG_member |
| .byte 0 # DW_CHILDREN_no |
| .byte 3 # DW_AT_name |
| .byte 14 # DW_FORM_strp |
| .byte 73 # DW_AT_type |
| .byte 19 # DW_FORM_ref4 |
| .byte 58 # DW_AT_decl_file |
| .byte 11 # DW_FORM_data1 |
| .byte 59 # DW_AT_decl_line |
| .byte 11 # DW_FORM_data1 |
| .byte 56 # DW_AT_data_member_location |
| .byte 11 # DW_FORM_data1 |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .byte 0 # EOM(3) |
| .section .debug_info,"",@progbits |
| .Lcu_begin0: |
| .long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit |
| .Ldebug_info_start0: |
| .short 4 # DWARF version number |
| .long .debug_abbrev # Offset Into Abbrev. Section |
| .byte 8 # Address Size (in bytes) |
| .byte 1 # Abbrev [1] 0xb:0x7f DW_TAG_compile_unit |
| .long .Linfo_string0 # DW_AT_producer |
| .short 33 # DW_AT_language |
| .long .Linfo_string1 # DW_AT_name |
| .long .Lline_table_start0 # DW_AT_stmt_list |
| .long .Linfo_string2 # DW_AT_comp_dir |
| .quad .Lfunc_begin0 # DW_AT_low_pc |
| .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc |
| .byte 2 # Abbrev [2] 0x2a:0x28 DW_TAG_subprogram |
| .quad .Lfunc_begin0 # DW_AT_low_pc |
| .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc |
| .byte 1 # DW_AT_frame_base |
| .byte 86 |
| .long .Linfo_string3 # DW_AT_name |
| .byte 1 # DW_AT_decl_file |
| .byte 7 # DW_AT_decl_line |
| .long 82 # DW_AT_type |
| # DW_AT_external |
| .byte 3 # Abbrev [3] 0x43:0xe DW_TAG_variable |
| .byte 2 # DW_AT_location |
| .byte 145 |
| .byte 120 |
| .long .Linfo_string5 # DW_AT_name |
| .byte 1 # DW_AT_decl_file |
| .byte 8 # DW_AT_decl_line |
| .long 89 # DW_AT_type |
| .byte 0 # End Of Children Mark |
| .byte 4 # Abbrev [4] 0x52:0x7 DW_TAG_base_type |
| .long .Linfo_string4 # DW_AT_name |
| .byte 5 # DW_AT_encoding |
| .byte 4 # DW_AT_byte_size |
| .Linfo_structured_type: |
| .byte 6 # Abbrev [6] 0x64:0x1e DW_TAG_structure_type |
| .byte 5 # DW_AT_calling_convention |
| .byte 8 # DW_AT_byte_size |
| .byte 1 # DW_AT_decl_file |
| .byte 1 # DW_AT_decl_line |
| .long .Linfo_sibling # DW_AT_sibling <-- Manually added |
| .Linfo_sibling: |
| .byte 5 # Abbrev [5] 0x59:0xb DW_TAG_typedef |
| .long .Linfo_structured_type # DW_AT_type <-- Manually modified |
| .long .Linfo_string9 # DW_AT_name |
| .byte 1 # DW_AT_decl_file |
| .byte 5 # DW_AT_decl_line |
| .byte 7 # Abbrev [7] 0x69:0xc DW_TAG_member |
| .long .Linfo_string6 # DW_AT_name |
| .long .Linfo_base_type # DW_AT_type |
| .byte 1 # DW_AT_decl_file |
| .byte 3 # DW_AT_decl_line |
| .byte 0 # DW_AT_data_member_location |
| .byte 7 # Abbrev [7] 0x75:0xc DW_TAG_member |
| .long .Linfo_string8 # DW_AT_name |
| .long .Linfo_base_type # DW_AT_type |
| .byte 1 # DW_AT_decl_file |
| .byte 4 # DW_AT_decl_line |
| .byte 4 # DW_AT_data_member_location |
| .byte 0 # End Of Children Mark |
| .Linfo_base_type: |
| .byte 4 # Abbrev [4] 0x82:0x7 DW_TAG_base_type |
| .long .Linfo_string7 # DW_AT_name |
| .byte 7 # DW_AT_encoding |
| .byte 4 # DW_AT_byte_size |
| .byte 0 # End Of Children Mark |
| .Ldebug_info_end0: |
| .section .debug_str,"MS",@progbits,1 |
| .Linfo_string0: |
| .asciz "clang version 15.0.0" # string offset=0 |
| .Linfo_string1: |
| .asciz "main.cpp" # string offset=146 |
| .Linfo_string2: |
| .asciz "/dwarf4-sibling-test" # string offset=155 |
| .Linfo_string3: |
| .asciz "main" # string offset=213 |
| .Linfo_string4: |
| .asciz "int" # string offset=218 |
| .Linfo_string5: |
| .asciz "s" # string offset=222 |
| .Linfo_string6: |
| .asciz "a" # string offset=224 |
| .Linfo_string7: |
| .asciz "unsigned int" # string offset=226 |
| .Linfo_string8: |
| .asciz "b" # string offset=239 |
| .Linfo_string9: |
| .asciz "S" # string offset=241 |
| .ident "clang version 15.0.0" |
| .section ".note.GNU-stack","",@progbits |
| .addrsig |
| .section .debug_line,"",@progbits |
| .Lline_table_start0: |