# clang++ -fbasic-block-sections=all -ffunction-sections -g2 -gdwarf-4 # int doStuff(int val) { # if (val) # ++val; # return val; # } # # int main(int argc, const char** argv) { # return doStuff(argc); # } .text .file "main.cpp" .section .text._Z7doStuffi,"ax",@progbits .globl _Z7doStuffi # -- Begin function _Z7doStuffi .p2align 4, 0x90 .type _Z7doStuffi,@function _Z7doStuffi: # @_Z7doStuffi .Lfunc_begin0: .file 1 "/subprogramRanges" "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 movl %edi, -4(%rbp) .Ltmp0: .loc 1 2 7 prologue_end # main.cpp:2:7 cmpl $0, -4(%rbp) .Ltmp1: .loc 1 2 7 is_stmt 0 # main.cpp:2:7 je _Z7doStuffi.__part.2 jmp _Z7doStuffi.__part.1 .LBB_END0_0: .cfi_endproc .section .text._Z7doStuffi,"ax",@progbits,unique,1 _Z7doStuffi.__part.1: # %if.then .cfi_startproc .cfi_def_cfa %rbp, 16 .cfi_offset %rbp, -16 .loc 1 3 5 is_stmt 1 # main.cpp:3:5 movl -4(%rbp), %eax addl $1, %eax movl %eax, -4(%rbp) jmp _Z7doStuffi.__part.2 .LBB_END0_1: .size _Z7doStuffi.__part.1, .LBB_END0_1-_Z7doStuffi.__part.1 .cfi_endproc .section .text._Z7doStuffi,"ax",@progbits,unique,2 _Z7doStuffi.__part.2: # %if.end .cfi_startproc .cfi_def_cfa %rbp, 16 .cfi_offset %rbp, -16 .loc 1 4 10 # main.cpp:4:10 movl -4(%rbp), %eax .loc 1 4 3 epilogue_begin is_stmt 0 # main.cpp:4:3 popq %rbp .cfi_def_cfa %rsp, 8 retq .LBB_END0_2: .size _Z7doStuffi.__part.2, .LBB_END0_2-_Z7doStuffi.__part.2 .cfi_endproc .section .text._Z7doStuffi,"ax",@progbits .Lfunc_end0: .size _Z7doStuffi, .Lfunc_end0-_Z7doStuffi # -- End function .section .text.main,"ax",@progbits .globl main # -- Begin function main .p2align 4, 0x90 .type main,@function main: # @main .Lfunc_begin1: .loc 1 7 0 is_stmt 1 # main.cpp:7:0 .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) movl %edi, -8(%rbp) movq %rsi, -16(%rbp) .Ltmp2: .loc 1 8 21 prologue_end # main.cpp:8:21 movl -8(%rbp), %edi .loc 1 8 13 is_stmt 0 # main.cpp:8:13 callq _Z7doStuffi .loc 1 8 5 epilogue_begin # main.cpp:8:5 addq $16, %rsp popq %rbp .cfi_def_cfa %rsp, 8 retq .LBB_END1_0: .cfi_endproc .Lfunc_end1: .size main, .Lfunc_end1-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 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 85 # DW_AT_ranges .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 85 # DW_AT_ranges .byte 23 # DW_FORM_sec_offset .byte 64 # DW_AT_frame_base .byte 24 # DW_FORM_exprloc .byte 110 # DW_AT_linkage_name .byte 14 # DW_FORM_strp .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 5 # DW_TAG_formal_parameter .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 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 5 # 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 6 # Abbreviation Code .byte 15 # DW_TAG_pointer_type .byte 0 # DW_CHILDREN_no .byte 73 # DW_AT_type .byte 19 # DW_FORM_ref4 .byte 0 # EOM(1) .byte 0 # EOM(2) .byte 7 # Abbreviation Code .byte 38 # DW_TAG_const_type .byte 0 # DW_CHILDREN_no .byte 73 # DW_AT_type .byte 19 # DW_FORM_ref4 .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:0x97 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 0 # DW_AT_low_pc .long .Ldebug_ranges1 # DW_AT_ranges .byte 2 # Abbrev [2] 0x2a:0x24 DW_TAG_subprogram .long .Ldebug_ranges0 # DW_AT_ranges .byte 1 # DW_AT_frame_base .byte 86 .long .Linfo_string3 # DW_AT_linkage_name .long .Linfo_string4 # DW_AT_name .byte 1 # DW_AT_decl_file .byte 1 # DW_AT_decl_line .long 132 # DW_AT_type # DW_AT_external .byte 3 # Abbrev [3] 0x3f:0xe DW_TAG_formal_parameter .byte 2 # DW_AT_location .byte 145 .byte 124 .long .Linfo_string7 # DW_AT_name .byte 1 # DW_AT_decl_file .byte 1 # DW_AT_decl_line .long 132 # DW_AT_type .byte 0 # End Of Children Mark .byte 4 # Abbrev [4] 0x4e:0x36 DW_TAG_subprogram .quad .Lfunc_begin1 # DW_AT_low_pc .long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc .byte 1 # DW_AT_frame_base .byte 86 .long .Linfo_string6 # DW_AT_name .byte 1 # DW_AT_decl_file .byte 7 # DW_AT_decl_line .long 132 # DW_AT_type # DW_AT_external .byte 3 # Abbrev [3] 0x67:0xe DW_TAG_formal_parameter .byte 2 # DW_AT_location .byte 145 .byte 120 .long .Linfo_string8 # DW_AT_name .byte 1 # DW_AT_decl_file .byte 7 # DW_AT_decl_line .long 132 # DW_AT_type .byte 3 # Abbrev [3] 0x75:0xe DW_TAG_formal_parameter .byte 2 # DW_AT_location .byte 145 .byte 112 .long .Linfo_string9 # DW_AT_name .byte 1 # DW_AT_decl_file .byte 7 # DW_AT_decl_line .long 139 # DW_AT_type .byte 0 # End Of Children Mark .byte 5 # Abbrev [5] 0x84:0x7 DW_TAG_base_type .long .Linfo_string5 # DW_AT_name .byte 5 # DW_AT_encoding .byte 4 # DW_AT_byte_size .byte 6 # Abbrev [6] 0x8b:0x5 DW_TAG_pointer_type .long 144 # DW_AT_type .byte 6 # Abbrev [6] 0x90:0x5 DW_TAG_pointer_type .long 149 # DW_AT_type .byte 7 # Abbrev [7] 0x95:0x5 DW_TAG_const_type .long 154 # DW_AT_type .byte 5 # Abbrev [5] 0x9a:0x7 DW_TAG_base_type .long .Linfo_string10 # DW_AT_name .byte 6 # DW_AT_encoding .byte 1 # DW_AT_byte_size .byte 0 # End Of Children Mark .Ldebug_info_end0: .section .debug_ranges,"",@progbits .Ldebug_ranges0: .quad _Z7doStuffi.__part.1 .quad .LBB_END0_1 .quad _Z7doStuffi.__part.2 .quad .LBB_END0_2 .quad .Lfunc_begin0 .quad .Lfunc_end0 .quad 0 .quad 0 .Ldebug_ranges1: .quad _Z7doStuffi.__part.1 .quad .LBB_END0_1 .quad _Z7doStuffi.__part.2 .quad .LBB_END0_2 .quad .Lfunc_begin0 .quad .Lfunc_end0 .quad .Lfunc_begin1 .quad .Lfunc_end1 .quad 0 .quad 0 .section .debug_str,"MS",@progbits,1 .Linfo_string0: .asciz "clang version 17.0.0 (https://github.com/llvm/llvm-project.git 640e07c49037cca41a1bfbeb916b569d8c950aea)" # string offset=0 .Linfo_string1: .asciz "main.cpp" # string offset=105 .Linfo_string2: .asciz "/subprogramRanges" # string offset=114 .Linfo_string3: .asciz "_Z7doStuffi" # string offset=169 .Linfo_string4: .asciz "doStuff" # string offset=181 .Linfo_string5: .asciz "int" # string offset=189 .Linfo_string6: .asciz "main" # string offset=193 .Linfo_string7: .asciz "val" # string offset=198 .Linfo_string8: .asciz "argc" # string offset=202 .Linfo_string9: .asciz "argv" # string offset=207 .Linfo_string10: .asciz "char" # string offset=212 .ident "clang version 17.0.0 (https://github.com/llvm/llvm-project.git 640e07c49037cca41a1bfbeb916b569d8c950aea)" .section ".note.GNU-stack","",@progbits .addrsig .addrsig_sym _Z7doStuffi .section .debug_line,"",@progbits .Lline_table_start0: