# Binary and .o was generated by: # 1) clang++ -g -gsplit-dwarf=single splitdwarf-single-issue.cpp -O3 -o splitdwarf-single-issue.s -S # 2) Split in to two .s by making a copy and removing .dwo sections from skeleton .s. # # Input .cpp file # __attribute__((nodebug)) __attribute__((optnone)) void f1() { # } # # __attribute__((always_inline)) inline void f2() { # # f1(); # } # # int main() { # # f2(); # } # RUN: rm -rf %t # RUN: mkdir -p %t # RUN: llvm-mc --filetype=obj --triple=x86_64-pc-linux %s -o %t/symbolize-debug-fission-single -g # RUN: llvm-mc --filetype=obj --triple=x86_64-pc-linux %s --defsym INCDWO=1 -o %t/symbolize-debug-fission-single.o -g # RUN: cd %t # RUN: llvm-symbolizer 0x0000000000000011 -a --obj=%t/symbolize-debug-fission-single \ # RUN: | FileCheck %s # CHECK: 0x11 # CHECK-NEXT: f2() # CHECK-NEXT: {{.*}}splitdwarf-single-issue.cpp:7:3 # CHECK-NEXT: main # CHECK-NEXT: {{.*}}splitdwarf-single-issue.cpp:13:3 .text .file "splitdwarf-single-issue.cpp" .globl _Z2f1v # -- Begin function _Z2f1v .p2align 4, 0x90 .type _Z2f1v,@function _Z2f1v: # @_Z2f1v .Lfunc_begin0: .cfi_startproc # %bb.0: # %entry retq .Lfunc_end0: .size _Z2f1v, .Lfunc_end0-_Z2f1v .cfi_endproc # -- End function .globl main # -- Begin function main .p2align 4, 0x90 .type main,@function main: # @main .Lfunc_begin1: .file 1 "." "splitdwarf-single-issue.cpp" .loc 1 11 0 # splitdwarf-single-issue.cpp:11:0 .cfi_startproc # %bb.0: # %entry pushq %rax .cfi_def_cfa_offset 16 .Ltmp0: .loc 1 7 3 prologue_end # splitdwarf-single-issue.cpp:7:3 callq _Z2f1v .Ltmp1: .loc 1 15 1 # splitdwarf-single-issue.cpp:15:1 xorl %eax, %eax popq %rcx .cfi_def_cfa_offset 8 retq .Ltmp2: .Lfunc_end1: .size main, .Lfunc_end1-main .cfi_endproc # -- End function .section .debug_abbrev,"",@progbits .byte 1 # Abbreviation Code .byte 17 # DW_TAG_compile_unit .byte 0 # DW_CHILDREN_no .byte 16 # DW_AT_stmt_list .byte 23 # DW_FORM_sec_offset .byte 27 # DW_AT_comp_dir .byte 14 # DW_FORM_strp .ascii "\264B" # DW_AT_GNU_pubnames .byte 25 # DW_FORM_flag_present .ascii "\260B" # DW_AT_GNU_dwo_name .byte 14 # DW_FORM_strp .ascii "\261B" # DW_AT_GNU_dwo_id .byte 7 # DW_FORM_data8 .byte 17 # DW_AT_low_pc .byte 1 # DW_FORM_addr .byte 18 # DW_AT_high_pc .byte 6 # DW_FORM_data4 .ascii "\263B" # DW_AT_GNU_addr_base .byte 23 # DW_FORM_sec_offset .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:0x25 DW_TAG_compile_unit .long .Lline_table_start0 # DW_AT_stmt_list .long .Lskel_string0 # DW_AT_comp_dir # DW_AT_GNU_pubnames .long .Lskel_string1 # DW_AT_GNU_dwo_name .quad -4321749769762995760 # DW_AT_GNU_dwo_id .quad .Lfunc_begin1 # DW_AT_low_pc .long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc .long .Laddr_table_base0 # DW_AT_GNU_addr_base .Ldebug_info_end0: .section .debug_str,"MS",@progbits,1 .Lskel_string0: .asciz "." # string offset=0 .Lskel_string1: .asciz "symbolize-debug-fission-single.o" # string offset=37 .section .debug_addr,"",@progbits .Laddr_table_base0: .quad .Lfunc_begin1 .quad .Ltmp0 .section .debug_gnu_pubnames,"",@progbits .long .LpubNames_end0-.LpubNames_start0 # Length of Public Names Info .LpubNames_start0: .short 2 # DWARF Version .long .Lcu_begin0 # Offset of Compilation Unit Info .long 48 # Compilation Unit Length .long 31 # DIE offset .byte 48 # Attributes: FUNCTION, EXTERNAL .asciz "main" # External Name .long 25 # DIE offset .byte 48 # Attributes: FUNCTION, EXTERNAL .asciz "f2" # External Name .long 0 # End Mark .LpubNames_end0: .section .debug_gnu_pubtypes,"",@progbits .long .LpubTypes_end0-.LpubTypes_start0 # Length of Public Types Info .LpubTypes_start0: .short 2 # DWARF Version .long .Lcu_begin0 # Offset of Compilation Unit Info .long 48 # Compilation Unit Length .long 60 # DIE offset .byte 144 # Attributes: TYPE, STATIC .asciz "int" # External Name .long 0 # End Mark .LpubTypes_end0: .ident "clang version 13.0.0 (https://github.com/llvm/llvm-project.git f0363d3d38b9a3b831b1bb6fa602eff54ac928fa)" .section ".note.GNU-stack","",@progbits .addrsig .section .debug_line,"",@progbits .Lline_table_start0: .ifdef INCDWO .section .debug_str.dwo,"eMS",@progbits,1 .Linfo_string0: .asciz "_Z2f2v" # string offset=0 .Linfo_string1: .asciz "f2" # string offset=7 .Linfo_string2: .asciz "main" # string offset=10 .Linfo_string3: .asciz "int" # string offset=15 .Linfo_string4: .asciz "clang version 13.0.0 (https://github.com/llvm/llvm-project.git f0363d3d38b9a3b831b1bb6fa602eff54ac928fa)" # string offset=19 .Linfo_string5: .asciz "splitdwarf-single-issue.cpp" # string offset=124 .Linfo_string6: .asciz "symbolize-debug-fission-single.o" # string offset=152 .section .debug_str_offsets.dwo,"e",@progbits .long 0 .long 7 .long 10 .long 15 .long 19 .long 124 .long 152 .section .debug_info.dwo,"e",@progbits .long .Ldebug_info_dwo_end0-.Ldebug_info_dwo_start0 # Length of Unit .Ldebug_info_dwo_start0: .short 4 # DWARF version number .long 0 # Offset Into Abbrev. Section .byte 8 # Address Size (in bytes) .byte 1 # Abbrev [1] 0xb:0x36 DW_TAG_compile_unit .byte 4 # DW_AT_producer .short 33 # DW_AT_language .byte 5 # DW_AT_name .byte 6 # DW_AT_GNU_dwo_name .quad -4321749769762995760 # DW_AT_GNU_dwo_id .byte 2 # Abbrev [2] 0x19:0x6 DW_TAG_subprogram .byte 0 # DW_AT_linkage_name .byte 1 # DW_AT_name .byte 1 # DW_AT_decl_file .byte 5 # DW_AT_decl_line # DW_AT_external .byte 1 # DW_AT_inline .byte 3 # Abbrev [3] 0x1f:0x1d DW_TAG_subprogram .byte 0 # DW_AT_low_pc .long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc .byte 1 # DW_AT_frame_base .byte 87 # DW_AT_GNU_all_call_sites .byte 2 # DW_AT_name .byte 1 # DW_AT_decl_file .byte 11 # DW_AT_decl_line .long 60 # DW_AT_type # DW_AT_external .byte 4 # Abbrev [4] 0x2e:0xd DW_TAG_inlined_subroutine .long 25 # DW_AT_abstract_origin .byte 1 # DW_AT_low_pc .long .Ltmp1-.Ltmp0 # DW_AT_high_pc .byte 1 # DW_AT_call_file .byte 13 # DW_AT_call_line .byte 3 # DW_AT_call_column .byte 0 # End Of Children Mark .byte 5 # Abbrev [5] 0x3c:0x4 DW_TAG_base_type .byte 3 # DW_AT_name .byte 5 # DW_AT_encoding .byte 4 # DW_AT_byte_size .byte 0 # End Of Children Mark .Ldebug_info_dwo_end0: .section .debug_abbrev.dwo,"e",@progbits .byte 1 # Abbreviation Code .byte 17 # DW_TAG_compile_unit .byte 1 # DW_CHILDREN_yes .byte 37 # DW_AT_producer .ascii "\202>" # DW_FORM_GNU_str_index .byte 19 # DW_AT_language .byte 5 # DW_FORM_data2 .byte 3 # DW_AT_name .ascii "\202>" # DW_FORM_GNU_str_index .ascii "\260B" # DW_AT_GNU_dwo_name .ascii "\202>" # DW_FORM_GNU_str_index .ascii "\261B" # DW_AT_GNU_dwo_id .byte 7 # DW_FORM_data8 .byte 0 # EOM(1) .byte 0 # EOM(2) .byte 2 # Abbreviation Code .byte 46 # DW_TAG_subprogram .byte 0 # DW_CHILDREN_no .byte 110 # DW_AT_linkage_name .ascii "\202>" # DW_FORM_GNU_str_index .byte 3 # DW_AT_name .ascii "\202>" # DW_FORM_GNU_str_index .byte 58 # DW_AT_decl_file .byte 11 # DW_FORM_data1 .byte 59 # DW_AT_decl_line .byte 11 # DW_FORM_data1 .byte 63 # DW_AT_external .byte 25 # DW_FORM_flag_present .byte 32 # DW_AT_inline .byte 11 # DW_FORM_data1 .byte 0 # EOM(1) .byte 0 # EOM(2) .byte 3 # Abbreviation Code .byte 46 # DW_TAG_subprogram .byte 1 # DW_CHILDREN_yes .byte 17 # DW_AT_low_pc .ascii "\201>" # DW_FORM_GNU_addr_index .byte 18 # DW_AT_high_pc .byte 6 # DW_FORM_data4 .byte 64 # DW_AT_frame_base .byte 24 # DW_FORM_exprloc .ascii "\227B" # DW_AT_GNU_all_call_sites .byte 25 # DW_FORM_flag_present .byte 3 # DW_AT_name .ascii "\202>" # DW_FORM_GNU_str_index .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 4 # Abbreviation Code .byte 29 # DW_TAG_inlined_subroutine .byte 0 # DW_CHILDREN_no .byte 49 # DW_AT_abstract_origin .byte 19 # DW_FORM_ref4 .byte 17 # DW_AT_low_pc .ascii "\201>" # DW_FORM_GNU_addr_index .byte 18 # DW_AT_high_pc .byte 6 # DW_FORM_data4 .byte 88 # DW_AT_call_file .byte 11 # DW_FORM_data1 .byte 89 # DW_AT_call_line .byte 11 # DW_FORM_data1 .byte 87 # DW_AT_call_column .byte 11 # DW_FORM_data1 .byte 0 # EOM(1) .byte 0 # EOM(2) .byte 5 # Abbreviation Code .byte 36 # DW_TAG_base_type .byte 0 # DW_CHILDREN_no .byte 3 # DW_AT_name .ascii "\202>" # DW_FORM_GNU_str_index .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) .endif