# RUN: llvm-mc -dwarf-version=5 -filetype=obj -triple x86_64-unknown-linux %s -o %tmain.o # RUN: %clang %cflags -gdwarf-5 %tmain.o -o %tmain.exe # RUN: llvm-bolt %tmain.exe -o %tmain.exe.bolt --update-debug-sections # RUN: llvm-dwarfdump --debug-names %tmain.exe.bolt > %tlog.txt # RUN: cat %tlog.txt | FileCheck -check-prefix=BOLT %s ## This test checks that bolt correctly generates entry for DW_TAG_union_type for .debug_name section. # BOLT: Abbreviations [ # BOLT-NEXT: Abbreviation [[ABBREV1:0x[0-9a-f]*]] { # BOLT-NEXT: Tag: DW_TAG_subprogram # BOLT-NEXT: DW_IDX_die_offset: DW_FORM_ref4 # BOLT-NEXT: DW_IDX_parent: DW_FORM_flag_present # BOLT-NEXT: } # BOLT-NEXT: Abbreviation [[ABBREV2:0x[0-9a-f]*]] { # BOLT-NEXT: Tag: DW_TAG_base_type # BOLT-NEXT: DW_IDX_die_offset: DW_FORM_ref4 # BOLT-NEXT: DW_IDX_parent: DW_FORM_flag_present # BOLT-NEXT: } # BOLT-NEXT: Abbreviation [[ABBREV3:0x[0-9a-f]*]] { # BOLT-NEXT: Tag: DW_TAG_union_type # BOLT-NEXT: DW_IDX_die_offset: DW_FORM_ref4 # BOLT-NEXT: DW_IDX_parent: DW_FORM_ref4 # BOLT-NEXT: } # BOLT-NEXT: Abbreviation [[ABBREV4:0x[0-9a-f]*]] { # BOLT-NEXT: Tag: DW_TAG_structure_type # BOLT-NEXT: DW_IDX_die_offset: DW_FORM_ref4 # BOLT-NEXT: DW_IDX_parent: DW_FORM_ref4 # BOLT-NEXT: } # BOLT-NEXT: ] # BOLT-NEXT: Bucket 0 [ # BOLT-NEXT: EMPTY # BOLT-NEXT: ] # BOLT-NEXT: Bucket 1 [ # BOLT-NEXT: Name 1 { # BOLT-NEXT: Hash: 0x7C9A7F6A # BOLT-NEXT: String: {{.+}} "main" # BOLT-NEXT: Entry @ [[ENTRY:0x[0-9a-f]*]] { # BOLT-NEXT: Abbrev: [[ABBREV1]] # BOLT-NEXT: Tag: DW_TAG_subprogram # BOLT-NEXT: DW_IDX_die_offset: 0x00000024 # BOLT-NEXT: DW_IDX_parent: # BOLT-NEXT: } # BOLT-NEXT: } # BOLT-NEXT: ] # BOLT-NEXT: Bucket 2 [ # BOLT-NEXT: EMPTY # BOLT-NEXT: ] # BOLT-NEXT: Bucket 3 [ # BOLT-NEXT: Name 2 { # BOLT-NEXT: Hash: 0xB888030 # BOLT-NEXT: String: {{.+}} "int" # BOLT-NEXT: Entry @ {{.+}} { # BOLT-NEXT: Abbrev: [[ABBREV2]] # BOLT-NEXT: Tag: DW_TAG_base_type # BOLT-NEXT: DW_IDX_die_offset: 0x00000083 # BOLT-NEXT: DW_IDX_parent: # BOLT-NEXT: } # BOLT-NEXT: } # BOLT-NEXT: Name 3 { # BOLT-NEXT: Hash: 0xED0F01B4 # BOLT-NEXT: String: {{.+}} "MyUnion" # BOLT-NEXT: Entry @ {{.+}} { # BOLT-NEXT: Abbrev: [[ABBREV3]] # BOLT-NEXT: Tag: DW_TAG_union_type # BOLT-NEXT: DW_IDX_die_offset: 0x00000049 # BOLT-NEXT: DW_IDX_parent: Entry @ [[ENTRY]] # BOLT-NEXT: } # BOLT-NEXT: } # BOLT-NEXT: ] # BOLT-NEXT: Bucket 4 [ # BOLT-NEXT: Name 4 { # BOLT-NEXT: Hash: 0x8AB681F0 # BOLT-NEXT: String: {{.+}} "MyStruct" # BOLT-NEXT: Entry @ [[ENTRY2:0x[0-9a-f]*]] { # BOLT-NEXT: Abbrev: [[ABBREV4]] # BOLT-NEXT: Tag: DW_TAG_structure_type # BOLT-NEXT: DW_IDX_die_offset: 0x00000062 # BOLT-NEXT: DW_IDX_parent: Entry @ [[ENTRY]] # BOLT-NEXT: } # BOLT-NEXT: } # BOLT-NEXT: Name 5 { # BOLT-NEXT: Hash: 0x8EEF3866 # BOLT-NEXT: String: {{.+}} "MyUnion2" # BOLT-NEXT: Entry @ {{.+}} { # BOLT-NEXT: Abbrev: [[ABBREV3]] # BOLT-NEXT: Tag: DW_TAG_union_type # BOLT-NEXT: DW_IDX_die_offset: 0x00000071 # BOLT-NEXT: DW_IDX_parent: Entry @ [[ENTRY2]] ## int main() { ## union MyUnion { ## int a; ## int b; ## }; ## struct MyStruct { ## union MyUnion2 { ## int a; ## }; ## MyUnion2 myUnion2; ## }; ## MyUnion myEnum; ## myEnum.a = 5; ## MyStruct myStruct; ## return myEnum.a + myStruct.myUnion2.a; ## } .text .file "main.cpp" .globl main # -- Begin function main .p2align 4, 0x90 .type main,@function main: # @main .Lfunc_begin0: .file 0 "union" "main.cpp" md5 0xb75b2512f2daa57bbcfe0c29f56d95f4 .loc 0 1 0 # main.cpp:1:0 retq .Lfunc_end0: .size main, .-main # -- 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 37 # DW_FORM_strx1 .byte 19 # DW_AT_language .byte 5 # DW_FORM_data2 .byte 3 # DW_AT_name .byte 37 # DW_FORM_strx1 .byte 114 # DW_AT_str_offsets_base .byte 23 # DW_FORM_sec_offset .byte 16 # DW_AT_stmt_list .byte 23 # DW_FORM_sec_offset .byte 27 # DW_AT_comp_dir .byte 37 # DW_FORM_strx1 .byte 17 # DW_AT_low_pc .byte 27 # DW_FORM_addrx .byte 18 # DW_AT_high_pc .byte 6 # DW_FORM_data4 .byte 115 # DW_AT_addr_base .byte 23 # DW_FORM_sec_offset .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 27 # DW_FORM_addrx .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 37 # DW_FORM_strx1 .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 37 # DW_FORM_strx1 .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 23 # DW_TAG_union_type .byte 1 # DW_CHILDREN_yes .byte 54 # DW_AT_calling_convention .byte 11 # DW_FORM_data1 .byte 3 # DW_AT_name .byte 37 # DW_FORM_strx1 .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 0 # EOM(1) .byte 0 # EOM(2) .byte 5 # Abbreviation Code .byte 13 # DW_TAG_member .byte 0 # DW_CHILDREN_no .byte 3 # DW_AT_name .byte 37 # DW_FORM_strx1 .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 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 3 # DW_AT_name .byte 37 # DW_FORM_strx1 .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 0 # EOM(1) .byte 0 # EOM(2) .byte 7 # Abbreviation Code .byte 36 # DW_TAG_base_type .byte 0 # DW_CHILDREN_no .byte 3 # DW_AT_name .byte 37 # DW_FORM_strx1 .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 0 # EOM(3) .section .debug_info,"",@progbits .Lcu_begin0: .long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit .Ldebug_info_start0: .short 5 # DWARF version number .byte 1 # DWARF Unit Type .byte 8 # Address Size (in bytes) .long .debug_abbrev # Offset Into Abbrev. Section .byte 1 # Abbrev [1] 0xc:0x7b DW_TAG_compile_unit .byte 0 # DW_AT_producer .short 33 # DW_AT_language .byte 1 # DW_AT_name .long .Lstr_offsets_base0 # DW_AT_str_offsets_base .long .Lline_table_start0 # DW_AT_stmt_list .byte 2 # DW_AT_comp_dir .byte 0 # DW_AT_low_pc .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc .long .Laddr_table_base0 # DW_AT_addr_base .byte 2 # Abbrev [2] 0x23:0x5f DW_TAG_subprogram .byte 0 # DW_AT_low_pc .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc .byte 1 # DW_AT_frame_base .byte 86 .byte 3 # DW_AT_name .byte 0 # DW_AT_decl_file .byte 1 # DW_AT_decl_line .long 130 # DW_AT_type # DW_AT_external .byte 3 # Abbrev [3] 0x32:0xb DW_TAG_variable .byte 2 # DW_AT_location .byte 145 .byte 120 .byte 5 # DW_AT_name .byte 0 # DW_AT_decl_file .byte 12 # DW_AT_decl_line .long 72 # DW_AT_type .byte 3 # Abbrev [3] 0x3d:0xb DW_TAG_variable .byte 2 # DW_AT_location .byte 145 .byte 116 .byte 9 # DW_AT_name .byte 0 # DW_AT_decl_file .byte 14 # DW_AT_decl_line .long 97 # DW_AT_type .byte 4 # Abbrev [4] 0x48:0x19 DW_TAG_union_type .byte 5 # DW_AT_calling_convention .byte 8 # DW_AT_name .byte 4 # DW_AT_byte_size .byte 0 # DW_AT_decl_file .byte 2 # DW_AT_decl_line .byte 5 # Abbrev [5] 0x4e:0x9 DW_TAG_member .byte 6 # DW_AT_name .long 130 # DW_AT_type .byte 0 # DW_AT_decl_file .byte 3 # DW_AT_decl_line .byte 0 # DW_AT_data_member_location .byte 5 # Abbrev [5] 0x57:0x9 DW_TAG_member .byte 7 # DW_AT_name .long 130 # DW_AT_type .byte 0 # DW_AT_decl_file .byte 4 # DW_AT_decl_line .byte 0 # DW_AT_data_member_location .byte 0 # End Of Children Mark .byte 6 # Abbrev [6] 0x61:0x20 DW_TAG_structure_type .byte 5 # DW_AT_calling_convention .byte 12 # DW_AT_name .byte 4 # DW_AT_byte_size .byte 0 # DW_AT_decl_file .byte 6 # DW_AT_decl_line .byte 5 # Abbrev [5] 0x67:0x9 DW_TAG_member .byte 10 # DW_AT_name .long 112 # DW_AT_type .byte 0 # DW_AT_decl_file .byte 10 # DW_AT_decl_line .byte 0 # DW_AT_data_member_location .byte 4 # Abbrev [4] 0x70:0x10 DW_TAG_union_type .byte 5 # DW_AT_calling_convention .byte 11 # DW_AT_name .byte 4 # DW_AT_byte_size .byte 0 # DW_AT_decl_file .byte 7 # DW_AT_decl_line .byte 5 # Abbrev [5] 0x76:0x9 DW_TAG_member .byte 6 # DW_AT_name .long 130 # DW_AT_type .byte 0 # DW_AT_decl_file .byte 8 # DW_AT_decl_line .byte 0 # DW_AT_data_member_location .byte 0 # End Of Children Mark .byte 0 # End Of Children Mark .byte 0 # End Of Children Mark .byte 7 # Abbrev [7] 0x82:0x4 DW_TAG_base_type .byte 4 # DW_AT_name .byte 5 # DW_AT_encoding .byte 4 # DW_AT_byte_size .byte 0 # End Of Children Mark .Ldebug_info_end0: .section .debug_str_offsets,"",@progbits .long 56 # Length of String Offsets Set .short 5 .short 0 .Lstr_offsets_base0: .section .debug_str,"MS",@progbits,1 .Linfo_string0: .asciz "clang version 20.0.0git" # string offset=0 .Linfo_string1: .asciz "main.cpp" # string offset=24 .Linfo_string2: .asciz "union" # string offset=33 .Linfo_string3: .asciz "main" # string offset=77 .Linfo_string4: .asciz "int" # string offset=82 .Linfo_string5: .asciz "myEnum" # string offset=86 .Linfo_string6: .asciz "MyUnion" # string offset=93 .Linfo_string7: .asciz "a" # string offset=101 .Linfo_string8: .asciz "b" # string offset=103 .Linfo_string9: .asciz "myStruct" # string offset=105 .Linfo_string10: .asciz "MyStruct" # string offset=114 .Linfo_string11: .asciz "myUnion2" # string offset=123 .Linfo_string12: .asciz "MyUnion2" # string offset=132 .section .debug_str_offsets,"",@progbits .long .Linfo_string0 .long .Linfo_string1 .long .Linfo_string2 .long .Linfo_string3 .long .Linfo_string4 .long .Linfo_string5 .long .Linfo_string7 .long .Linfo_string8 .long .Linfo_string6 .long .Linfo_string9 .long .Linfo_string11 .long .Linfo_string12 .long .Linfo_string10 .section .debug_addr,"",@progbits .long .Ldebug_addr_end0-.Ldebug_addr_start0 # Length of contribution .Ldebug_addr_start0: .short 5 # DWARF version number .byte 8 # Address size .byte 0 # Segment selector size .Laddr_table_base0: .quad .Lfunc_begin0 .Ldebug_addr_end0: .section .debug_names,"",@progbits .long .Lnames_end0-.Lnames_start0 # Header: unit length .Lnames_start0: .short 5 # Header: version .short 0 # Header: padding .long 1 # Header: compilation unit count .long 0 # Header: local type unit count .long 0 # Header: foreign type unit count .long 5 # Header: bucket count .long 5 # Header: name count .long .Lnames_abbrev_end0-.Lnames_abbrev_start0 # Header: abbreviation table size .long 8 # Header: augmentation string size .ascii "LLVM0700" # Header: augmentation string .long .Lcu_begin0 # Compilation unit 0 .long 0 # Bucket 0 .long 1 # Bucket 1 .long 0 # Bucket 2 .long 2 # Bucket 3 .long 4 # Bucket 4 .long 2090499946 # Hash in Bucket 1 .long 193495088 # Hash in Bucket 3 .long -317783628 # Hash in Bucket 3 .long -1967750672 # Hash in Bucket 4 .long -1896925082 # Hash in Bucket 4 .long .Linfo_string3 # String in Bucket 1: main .long .Linfo_string4 # String in Bucket 3: int .long .Linfo_string6 # String in Bucket 3: MyUnion .long .Linfo_string10 # String in Bucket 4: MyStruct .long .Linfo_string12 # String in Bucket 4: MyUnion2 .long .Lnames0-.Lnames_entries0 # Offset in Bucket 1 .long .Lnames1-.Lnames_entries0 # Offset in Bucket 3 .long .Lnames2-.Lnames_entries0 # Offset in Bucket 3 .long .Lnames3-.Lnames_entries0 # Offset in Bucket 4 .long .Lnames4-.Lnames_entries0 # Offset in Bucket 4 .Lnames_abbrev_start0: .byte 1 # Abbrev code .byte 46 # DW_TAG_subprogram .byte 3 # DW_IDX_die_offset .byte 19 # DW_FORM_ref4 .byte 4 # DW_IDX_parent .byte 25 # DW_FORM_flag_present .byte 0 # End of abbrev .byte 0 # End of abbrev .byte 2 # Abbrev code .byte 36 # DW_TAG_base_type .byte 3 # DW_IDX_die_offset .byte 19 # DW_FORM_ref4 .byte 4 # DW_IDX_parent .byte 25 # DW_FORM_flag_present .byte 0 # End of abbrev .byte 0 # End of abbrev .byte 3 # Abbrev code .byte 23 # DW_TAG_union_type .byte 3 # DW_IDX_die_offset .byte 19 # DW_FORM_ref4 .byte 4 # DW_IDX_parent .byte 19 # DW_FORM_ref4 .byte 0 # End of abbrev .byte 0 # End of abbrev .byte 4 # Abbrev code .byte 19 # DW_TAG_structure_type .byte 3 # DW_IDX_die_offset .byte 19 # DW_FORM_ref4 .byte 4 # DW_IDX_parent .byte 19 # DW_FORM_ref4 .byte 0 # End of abbrev .byte 0 # End of abbrev .byte 0 # End of abbrev list .Lnames_abbrev_end0: .Lnames_entries0: .Lnames0: .L3: .byte 1 # Abbreviation code .long 35 # DW_IDX_die_offset .byte 0 # DW_IDX_parent # End of list: main .Lnames1: .L1: .byte 2 # Abbreviation code .long 130 # DW_IDX_die_offset .byte 0 # DW_IDX_parent # End of list: int .Lnames2: .L4: .byte 3 # Abbreviation code .long 72 # DW_IDX_die_offset .long .L3-.Lnames_entries0 # DW_IDX_parent .byte 0 # End of list: MyUnion .Lnames3: .L2: .byte 4 # Abbreviation code .long 97 # DW_IDX_die_offset .long .L3-.Lnames_entries0 # DW_IDX_parent .byte 0 # End of list: MyStruct .Lnames4: .L0: .byte 3 # Abbreviation code .long 112 # DW_IDX_die_offset .long .L2-.Lnames_entries0 # DW_IDX_parent .byte 0 # End of list: MyUnion2 .p2align 2, 0x0 .Lnames_end0: .ident "clang version 20.0.0git" .section ".note.GNU-stack","",@progbits .addrsig .section .debug_line,"",@progbits .Lline_table_start0: