| # int foo() { return 0; } |
| # int main() { return foo(); } |
| # clang++ -ffunction-sections -g2 -gdwarf-4 -gsplit-dwarf -S main.cpp |
| |
| .text |
| .file "main.cpp" |
| .globl _Z3foov # -- Begin function _Z3foov |
| .p2align 4, 0x90 |
| .type _Z3foov,@function |
| _Z3foov: # @_Z3foov |
| .Lfunc_begin0: |
| .file 1 "." "main.cpp" |
| .loc 1 1 0 # main.cpp:1:0 |
| .cfi_startproc |
| # %bb.0: # %entry |
| pushq %rbp |
| .cfi_def_cfa_offset 16 |
| .cfi_offset %rbp, -16 |
| movq %rsp, %rbp |
| .cfi_def_cfa_register %rbp |
| .Ltmp0: |
| .loc 1 1 13 prologue_end # main.cpp:1:13 |
| xorl %eax, %eax |
| .loc 1 1 13 epilogue_begin is_stmt 0 # main.cpp:1:13 |
| popq %rbp |
| .cfi_def_cfa %rsp, 8 |
| retq |
| .Ltmp1: |
| .Lfunc_end0: |
| .size _Z3foov, .Lfunc_end0-_Z3foov |
| .cfi_endproc |
| # -- End function |
| .globl main # -- Begin function main |
| .p2align 4, 0x90 |
| .type main,@function |
| main: # @main |
| .Lfunc_begin1: |
| .loc 1 2 0 is_stmt 1 # main.cpp:2:0 |
| .cfi_startproc |
| # %bb.0: # %entry |
| pushq %rbp |
| .cfi_def_cfa_offset 16 |
| .cfi_offset %rbp, -16 |
| movq %rsp, %rbp |
| .cfi_def_cfa_register %rbp |
| subq $16, %rsp |
| movl $0, -4(%rbp) |
| .Ltmp2: |
| .loc 1 2 21 prologue_end # main.cpp:2:21 |
| callq _Z3foov |
| .loc 1 2 14 epilogue_begin is_stmt 0 # main.cpp:2:14 |
| addq $16, %rsp |
| popq %rbp |
| .cfi_def_cfa %rsp, 8 |
| retq |
| .Ltmp3: |
| .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 -252790171939032967 # DW_AT_GNU_dwo_id |
| .quad .Lfunc_begin0 # DW_AT_low_pc |
| .long .Lfunc_end1-.Lfunc_begin0 # 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 "main.dwo" # string offset=59 |
| .section .debug_str.dwo,"eMS",@progbits,1 |
| .Linfo_string0: |
| .asciz "_Z3foov" # string offset=0 |
| .Linfo_string1: |
| .asciz "foo" # string offset=8 |
| .Linfo_string2: |
| .asciz "int" # string offset=12 |
| .Linfo_string3: |
| .asciz "main" # string offset=16 |
| .Linfo_string4: |
| .asciz "clang version 17.0.0 (https://github.com/llvm/llvm-project.git 640e07c49037cca41a1bfbeb916b569d8c950aea)" # string offset=21 |
| .Linfo_string5: |
| .asciz "main.cpp" # string offset=126 |
| .Linfo_string6: |
| .asciz "main.dwo" # string offset=135 |
| .section .debug_str_offsets.dwo,"e",@progbits |
| .long 0 |
| .long 8 |
| .long 12 |
| .long 16 |
| .long 21 |
| .long 126 |
| .long 135 |
| .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:0x32 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 -252790171939032967 # DW_AT_GNU_dwo_id |
| .byte 2 # Abbrev [2] 0x19:0x10 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 0 # DW_AT_linkage_name |
| .byte 1 # DW_AT_name |
| .byte 1 # DW_AT_decl_file |
| .byte 1 # DW_AT_decl_line |
| .long 56 # DW_AT_type |
| # DW_AT_external |
| .byte 3 # Abbrev [3] 0x29:0xf DW_TAG_subprogram |
| .byte 1 # DW_AT_low_pc |
| .long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc |
| .byte 1 # DW_AT_frame_base |
| .byte 86 |
| .byte 3 # DW_AT_name |
| .byte 1 # DW_AT_decl_file |
| .byte 2 # DW_AT_decl_line |
| .long 56 # DW_AT_type |
| # DW_AT_external |
| .byte 4 # Abbrev [4] 0x38:0x4 DW_TAG_base_type |
| .byte 2 # 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 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 |
| .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 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 46 # DW_TAG_subprogram |
| .byte 0 # DW_CHILDREN_no |
| .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 |
| .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 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) |
| .section .debug_addr,"",@progbits |
| .Laddr_table_base0: |
| .quad .Lfunc_begin0 |
| .quad .Lfunc_begin1 |
| .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 41 # DIE offset |
| .byte 48 # Attributes: FUNCTION, EXTERNAL |
| .asciz "main" # External Name |
| .long 25 # DIE offset |
| .byte 48 # Attributes: FUNCTION, EXTERNAL |
| .asciz "foo" # 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 56 # DIE offset |
| .byte 144 # Attributes: TYPE, STATIC |
| .asciz "int" # External Name |
| .long 0 # End Mark |
| .LpubTypes_end0: |
| .ident "clang version 17.0.0 (https://github.com/llvm/llvm-project.git 640e07c49037cca41a1bfbeb916b569d8c950aea)" |
| .section ".note.GNU-stack","",@progbits |
| .addrsig |
| .addrsig_sym _Z3foov |
| .section .debug_line,"",@progbits |
| .Lline_table_start0: |
