# REQUIRES: system-linux # RUN: llvm-mc -dwarf-version=4 -filetype=obj -triple x86_64-unknown-linux %s -o %t1.o # RUN: %clang %cflags -dwarf-4 %t1.o -o %t.exe # RUN: llvm-objcopy --remove-section=.debug_loc %t.exe # RUN: llvm-bolt %t.exe -o %t.bolt --update-debug-sections &> file # RUN: cat file | FileCheck --check-prefix=CHECK %s ## Making sure we handle error returned by visitLocationList correctly. # CHECK: BOLT-WARNING: empty location list detected at # CHECK-NEXT: BOLT-WARNING: empty location list detected at # CHECK-NEXT: BOLT: # clang++ main.cpp -g -ffunction-sections -Os -gdwarf-4 -S # int doStuff2(int val) { # return val += 3; # } # # int main(int argc, const char** argv) { # return doStuff2(argc); # } .text .file "main.cpp" .section .text._Z8doStuff2i,"ax",@progbits .globl _Z8doStuff2i # -- Begin function _Z8doStuff2i .type _Z8doStuff2i,@function _Z8doStuff2i: # @_Z8doStuff2i .Lfunc_begin0: .file 1 "." "main.cpp" .loc 1 2 0 # main.cpp:2:0 .cfi_startproc # %bb.0: # %entry #DEBUG_VALUE: doStuff2:val <- $edi # kill: def $edi killed $edi def $rdi .loc 1 3 14 prologue_end # main.cpp:3:14 leal 3(%rdi), %eax .Ltmp0: #DEBUG_VALUE: doStuff2:val <- $eax .loc 1 3 3 is_stmt 0 # main.cpp:3:3 retq .Ltmp1: .Lfunc_end0: .size _Z8doStuff2i, .Lfunc_end0-_Z8doStuff2i .cfi_endproc # -- End function .section .text.main,"ax",@progbits .globl main # -- Begin function main .type main,@function main: # @main .Lfunc_begin1: .loc 1 6 0 is_stmt 1 # main.cpp:6:0 .cfi_startproc # %bb.0: # %entry #DEBUG_VALUE: main:argc <- $edi #DEBUG_VALUE: main:argv <- $rsi #DEBUG_VALUE: doStuff2:val <- $edi # kill: def $edi killed $edi def $rdi .loc 1 3 14 prologue_end # main.cpp:3:14 leal 3(%rdi), %eax .Ltmp2: #DEBUG_VALUE: doStuff2:val <- $eax .loc 1 7 3 # main.cpp:7:3 retq .Ltmp3: .Lfunc_end1: .size main, .Lfunc_end1-main .cfi_endproc # -- End function .section .debug_loc,"",@progbits .Ldebug_loc0: .quad -1 .quad .Lfunc_begin0 # base address .quad .Lfunc_begin0-.Lfunc_begin0 .quad .Ltmp0-.Lfunc_begin0 .short 1 # Loc expr size .byte 85 # super-register DW_OP_reg5 .quad .Ltmp0-.Lfunc_begin0 .quad .Lfunc_end0-.Lfunc_begin0 .short 1 # Loc expr size .byte 80 # super-register DW_OP_reg0 .quad 0 .quad 0 .Ldebug_loc1: .quad -1 .quad .Lfunc_begin1 # base address .quad .Lfunc_begin1-.Lfunc_begin1 .quad .Ltmp2-.Lfunc_begin1 .short 1 # Loc expr size .byte 85 # super-register DW_OP_reg5 .quad .Ltmp2-.Lfunc_begin1 .quad .Lfunc_end1-.Lfunc_begin1 .short 1 # Loc expr size .byte 80 # super-register DW_OP_reg0 .quad 0 .quad 0 .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 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 .ascii "\227B" # DW_AT_GNU_all_call_sites .byte 25 # DW_FORM_flag_present .byte 49 # DW_AT_abstract_origin .byte 19 # DW_FORM_ref4 .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 23 # DW_FORM_sec_offset .byte 49 # DW_AT_abstract_origin .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 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 32 # DW_AT_inline .byte 11 # DW_FORM_data1 .byte 0 # EOM(1) .byte 0 # EOM(2) .byte 5 # Abbreviation Code .byte 5 # DW_TAG_formal_parameter .byte 0 # DW_CHILDREN_no .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 6 # 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 7 # 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 .ascii "\227B" # DW_AT_GNU_all_call_sites .byte 25 # DW_FORM_flag_present .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 8 # 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 9 # Abbreviation Code .byte 29 # DW_TAG_inlined_subroutine .byte 1 # DW_CHILDREN_yes .byte 49 # DW_AT_abstract_origin .byte 19 # DW_FORM_ref4 .byte 17 # DW_AT_low_pc .byte 1 # DW_FORM_addr .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 10 # 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 11 # 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:0xc8 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_ranges0 # DW_AT_ranges .byte 2 # Abbrev [2] 0x2a:0x1d 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 87 # DW_AT_GNU_all_call_sites .long 71 # DW_AT_abstract_origin .byte 3 # Abbrev [3] 0x3d:0x9 DW_TAG_formal_parameter .long .Ldebug_loc0 # DW_AT_location .long 87 # DW_AT_abstract_origin .byte 0 # End Of Children Mark .byte 4 # Abbrev [4] 0x47:0x1c DW_TAG_subprogram .long .Linfo_string3 # DW_AT_linkage_name .long .Linfo_string4 # DW_AT_name .byte 1 # DW_AT_decl_file .byte 2 # DW_AT_decl_line .long 99 # DW_AT_type # DW_AT_external .byte 1 # DW_AT_inline .byte 5 # Abbrev [5] 0x57:0xb DW_TAG_formal_parameter .long .Linfo_string6 # DW_AT_name .byte 1 # DW_AT_decl_file .byte 2 # DW_AT_decl_line .long 99 # DW_AT_type .byte 0 # End Of Children Mark .byte 6 # Abbrev [6] 0x63:0x7 DW_TAG_base_type .long .Linfo_string5 # DW_AT_name .byte 5 # DW_AT_encoding .byte 4 # DW_AT_byte_size .byte 7 # Abbrev [7] 0x6a:0x52 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 87 # DW_AT_GNU_all_call_sites .long .Linfo_string7 # DW_AT_name .byte 1 # DW_AT_decl_file .byte 6 # DW_AT_decl_line .long 99 # DW_AT_type # DW_AT_external .byte 8 # Abbrev [8] 0x83:0xd DW_TAG_formal_parameter .byte 1 # DW_AT_location .byte 85 .long .Linfo_string8 # DW_AT_name .byte 1 # DW_AT_decl_file .byte 6 # DW_AT_decl_line .long 99 # DW_AT_type .byte 8 # Abbrev [8] 0x90:0xd DW_TAG_formal_parameter .byte 1 # DW_AT_location .byte 84 .long .Linfo_string9 # DW_AT_name .byte 1 # DW_AT_decl_file .byte 6 # DW_AT_decl_line .long 188 # DW_AT_type .byte 9 # Abbrev [9] 0x9d:0x1e DW_TAG_inlined_subroutine .long 71 # DW_AT_abstract_origin .quad .Lfunc_begin1 # DW_AT_low_pc .long .Ltmp2-.Lfunc_begin1 # DW_AT_high_pc .byte 1 # DW_AT_call_file .byte 7 # DW_AT_call_line .byte 10 # DW_AT_call_column .byte 3 # Abbrev [3] 0xb1:0x9 DW_TAG_formal_parameter .long .Ldebug_loc1 # DW_AT_location .long 87 # DW_AT_abstract_origin .byte 0 # End Of Children Mark .byte 0 # End Of Children Mark .byte 10 # Abbrev [10] 0xbc:0x5 DW_TAG_pointer_type .long 193 # DW_AT_type .byte 10 # Abbrev [10] 0xc1:0x5 DW_TAG_pointer_type .long 198 # DW_AT_type .byte 11 # Abbrev [11] 0xc6:0x5 DW_TAG_const_type .long 203 # DW_AT_type .byte 6 # Abbrev [6] 0xcb: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 .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 15.0.0" # string offset=0 .Linfo_string1: .asciz "main.cpp" # string offset=134 .Linfo_string2: .asciz "." # string offset=143 .Linfo_string3: .asciz "_Z8doStuff2i" # string offset=181 .Linfo_string4: .asciz "doStuff2" # string offset=194 .Linfo_string5: .asciz "int" # string offset=203 .Linfo_string6: .asciz "val" # string offset=207 .Linfo_string7: .asciz "main" # string offset=211 .Linfo_string8: .asciz "argc" # string offset=216 .Linfo_string9: .asciz "argv" # string offset=221 .Linfo_string10: .asciz "char" # string offset=226 .ident "clang version 15.0.0" .section ".note.GNU-stack","",@progbits .addrsig .section .debug_line,"",@progbits .Lline_table_start0: