| # REQUIRES: system-linux |
| |
| # RUN: llvm-mc -dwarf-version=4 -filetype=obj -triple x86_64-unknown-linux %s -o %tmain.o |
| # RUN: %clang %cflags -dwarf-4 %tmain.o -o %t.exe -Wl,-q |
| # RUN: llvm-bolt %t.exe -o %t.bolt --update-debug-sections --use-old-text |
| # RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.bolt > %t.txt |
| # RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.exe >> %t.txt |
| # RUN: cat %t.txt | FileCheck --check-prefix=CHECK %s |
| |
| # CHECK: DW_TAG_inlined_subroutine |
| # CHECK: DW_AT_low_pc [DW_FORM_addr] (0x[[#%.16x,ADDR:]]) |
| # CHECK: DW_AT_high_pc [DW_FORM_data4] (0x00000000) |
| |
| # CHECK: DW_TAG_inlined_subroutine |
| # CHECK-NOT: DW_AT_low_pc [DW_FORM_addr] (0x[[#ADDR]]) |
| # CHECK: DW_AT_high_pc [DW_FORM_data4] (0x00000000) |
| |
| |
| ## Testing BOLT handles correctly when size of DW_AT_inlined_subroutine is 0. |
| ## In other words DW_AT_high_pc is 0 or DW_AT_low_pc == DW_AT_high_pc. |
| |
| # Modified assembly manually to set DW_AT_high_pc to 0. |
| # clang++ -g2 -gdwarf-4 main.cpp -O1 -S -o main4.s |
| |
| # static int helper(int i) { |
| # return ++i; |
| # } |
| # void may_not_exist(void) __attribute__ ((weak)); |
| # int main(int argc, char *argv[]) { |
| # if (may_not_exist) |
| # may_not_exist(); |
| # int j = 0; |
| # [[clang::always_inline]] j = helper(argc); |
| # return j; |
| # } |
| |
| |
| .text |
| .file "main.cpp" |
| .globl main # -- Begin function main |
| .p2align 4, 0x90 |
| .type main,@function |
| main: # @main |
| .Lfunc_begin0: |
| .file 1 "." "main.cpp" |
| .loc 1 5 0 # main.cpp:5:0 |
| .cfi_startproc |
| # %bb.0: # %entry |
| #DEBUG_VALUE: main:argc <- $edi |
| #DEBUG_VALUE: main:argv <- $rsi |
| pushq %rbx |
| .cfi_def_cfa_offset 16 |
| .cfi_offset %rbx, -16 |
| movl %edi, %ebx |
| .Ltmp0: |
| .loc 1 6 7 prologue_end # main.cpp:6:7 |
| cmpq $0, _Z13may_not_existv@GOTPCREL(%rip) |
| je .LBB0_2 |
| .Ltmp1: |
| # %bb.1: # %if.then |
| #DEBUG_VALUE: main:argc <- $ebx |
| #DEBUG_VALUE: main:argv <- $rsi |
| .loc 1 7 5 # main.cpp:7:5 |
| callq _Z13may_not_existv@PLT |
| .Ltmp2: |
| #DEBUG_VALUE: main:argv <- [DW_OP_LLVM_entry_value 1] $rsi |
| .LBB0_2: # %if.end |
| #DEBUG_VALUE: main:argc <- $ebx |
| #DEBUG_VALUE: main:argv <- [DW_OP_LLVM_entry_value 1] $rsi |
| #DEBUG_VALUE: main:j <- 0 |
| #DEBUG_VALUE: helper:i <- $ebx |
| .loc 1 2 10 # main.cpp:2:10 |
| incl %ebx |
| .Ltmp3: |
| #DEBUG_VALUE: main:argc <- [DW_OP_LLVM_entry_value 1] $edi |
| #DEBUG_VALUE: helper:i <- $ebx |
| #DEBUG_VALUE: main:j <- $ebx |
| .loc 1 10 3 # main.cpp:10:3 |
| movl %ebx, %eax |
| popq %rbx |
| .Ltmp4: |
| #DEBUG_VALUE: helper:i <- $eax |
| #DEBUG_VALUE: main:j <- $eax |
| .cfi_def_cfa_offset 8 |
| retq |
| .Ltmp5: |
| .Lfunc_end0: |
| .size main, .Lfunc_end0-main |
| .cfi_endproc |
| # -- End function |
| .section .debug_loc,"",@progbits |
| .Ldebug_loc0: |
| .quad .Lfunc_begin0-.Lfunc_begin0 |
| .quad .Ltmp1-.Lfunc_begin0 |
| .short 1 # Loc expr size |
| .byte 85 # super-register DW_OP_reg5 |
| .quad .Ltmp1-.Lfunc_begin0 |
| .quad .Ltmp3-.Lfunc_begin0 |
| .short 1 # Loc expr size |
| .byte 83 # super-register DW_OP_reg3 |
| .quad .Ltmp3-.Lfunc_begin0 |
| .quad .Lfunc_end0-.Lfunc_begin0 |
| .short 4 # Loc expr size |
| .byte 243 # DW_OP_GNU_entry_value |
| .byte 1 # 1 |
| .byte 85 # super-register DW_OP_reg5 |
| .byte 159 # DW_OP_stack_value |
| .quad 0 |
| .quad 0 |
| .Ldebug_loc1: |
| .quad .Lfunc_begin0-.Lfunc_begin0 |
| .quad .Ltmp2-.Lfunc_begin0 |
| .short 1 # Loc expr size |
| .byte 84 # DW_OP_reg4 |
| .quad .Ltmp2-.Lfunc_begin0 |
| .quad .Lfunc_end0-.Lfunc_begin0 |
| .short 4 # Loc expr size |
| .byte 243 # DW_OP_GNU_entry_value |
| .byte 1 # 1 |
| .byte 84 # DW_OP_reg4 |
| .byte 159 # DW_OP_stack_value |
| .quad 0 |
| .quad 0 |
| .Ldebug_loc2: |
| .quad .Ltmp2-.Lfunc_begin0 |
| .quad .Ltmp3-.Lfunc_begin0 |
| .short 3 # Loc expr size |
| .byte 17 # DW_OP_consts |
| .byte 0 # 0 |
| .byte 159 # DW_OP_stack_value |
| .quad .Ltmp3-.Lfunc_begin0 |
| .quad .Ltmp4-.Lfunc_begin0 |
| .short 1 # Loc expr size |
| .byte 83 # super-register DW_OP_reg3 |
| .quad .Ltmp4-.Lfunc_begin0 |
| .quad .Lfunc_end0-.Lfunc_begin0 |
| .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 18 # DW_AT_high_pc |
| .byte 6 # DW_FORM_data4 |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .byte 2 # 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 32 # DW_AT_inline |
| .byte 11 # DW_FORM_data1 |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .byte 3 # 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 4 # 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 5 # 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 6 # 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 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 7 # Abbreviation Code |
| .byte 52 # DW_TAG_variable |
| .byte 0 # DW_CHILDREN_no |
| .byte 2 # DW_AT_location |
| .byte 23 # DW_FORM_sec_offset |
| .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 8 # 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 9 # Abbreviation Code |
| .byte 5 # DW_TAG_formal_parameter |
| .byte 0 # DW_CHILDREN_no |
| .byte 2 # DW_AT_location |
| .byte 24 # DW_FORM_exprloc |
| .byte 49 # DW_AT_abstract_origin |
| .byte 19 # DW_FORM_ref4 |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .byte 10 # Abbreviation Code |
| .ascii "\211\202\001" # DW_TAG_GNU_call_site |
| .byte 0 # DW_CHILDREN_no |
| .byte 49 # DW_AT_abstract_origin |
| .byte 19 # DW_FORM_ref4 |
| .byte 17 # DW_AT_low_pc |
| .byte 1 # DW_FORM_addr |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .byte 11 # Abbreviation Code |
| .byte 46 # DW_TAG_subprogram |
| .byte 0 # DW_CHILDREN_no |
| .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 60 # DW_AT_declaration |
| .byte 25 # DW_FORM_flag_present |
| .byte 63 # DW_AT_external |
| .byte 25 # DW_FORM_flag_present |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .byte 12 # 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 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:0xcf 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 .Lfunc_begin0 # DW_AT_low_pc |
| .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc |
| .byte 2 # Abbrev [2] 0x2a:0x1c DW_TAG_subprogram |
| .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 70 # DW_AT_type |
| .byte 1 # DW_AT_inline |
| .byte 3 # Abbrev [3] 0x3a:0xb DW_TAG_formal_parameter |
| .long .Linfo_string6 # DW_AT_name |
| .byte 1 # DW_AT_decl_file |
| .byte 1 # DW_AT_decl_line |
| .long 70 # DW_AT_type |
| .byte 0 # End Of Children Mark |
| .byte 4 # Abbrev [4] 0x46:0x7 DW_TAG_base_type |
| .long .Linfo_string5 # DW_AT_name |
| .byte 5 # DW_AT_encoding |
| .byte 4 # DW_AT_byte_size |
| .byte 5 # Abbrev [5] 0x4d:0x70 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 .Linfo_string9 # DW_AT_name |
| .byte 1 # DW_AT_decl_file |
| .byte 5 # DW_AT_decl_line |
| .long 70 # DW_AT_type |
| # DW_AT_external |
| .byte 6 # Abbrev [6] 0x66:0xf DW_TAG_formal_parameter |
| .long .Ldebug_loc0 # DW_AT_location |
| .long .Linfo_string10 # DW_AT_name |
| .byte 1 # DW_AT_decl_file |
| .byte 5 # DW_AT_decl_line |
| .long 70 # DW_AT_type |
| .byte 6 # Abbrev [6] 0x75:0xf DW_TAG_formal_parameter |
| .long .Ldebug_loc1 # DW_AT_location |
| .long .Linfo_string11 # DW_AT_name |
| .byte 1 # DW_AT_decl_file |
| .byte 5 # DW_AT_decl_line |
| .long 200 # DW_AT_type |
| .byte 7 # Abbrev [7] 0x84:0xf DW_TAG_variable |
| .long .Ldebug_loc2 # DW_AT_location |
| .long .Linfo_string13 # DW_AT_name |
| .byte 1 # DW_AT_decl_file |
| .byte 8 # DW_AT_decl_line |
| .long 70 # DW_AT_type |
| .byte 8 # Abbrev [8] 0x93:0x1c DW_TAG_inlined_subroutine |
| .long 42 # DW_AT_abstract_origin |
| .quad .Ltmp2 # DW_AT_low_pc |
| .long 0 # DW_AT_high_pc Manually modified |
| .byte 1 # DW_AT_call_file |
| .byte 9 # DW_AT_call_line |
| .byte 32 # DW_AT_call_column |
| .byte 9 # Abbrev [9] 0xa7:0x7 DW_TAG_formal_parameter |
| .byte 1 # DW_AT_location |
| .byte 83 |
| .long 58 # DW_AT_abstract_origin |
| .byte 0 # End Of Children Mark |
| .byte 10 # Abbrev [10] 0xaf:0xd DW_TAG_GNU_call_site |
| .long 189 # DW_AT_abstract_origin |
| .quad .Ltmp2 # DW_AT_low_pc |
| .byte 0 # End Of Children Mark |
| .byte 11 # Abbrev [11] 0xbd:0xb DW_TAG_subprogram |
| .long .Linfo_string7 # DW_AT_linkage_name |
| .long .Linfo_string8 # DW_AT_name |
| .byte 1 # DW_AT_decl_file |
| .byte 4 # DW_AT_decl_line |
| # DW_AT_declaration |
| # DW_AT_external |
| .byte 12 # Abbrev [12] 0xc8:0x5 DW_TAG_pointer_type |
| .long 205 # DW_AT_type |
| .byte 12 # Abbrev [12] 0xcd:0x5 DW_TAG_pointer_type |
| .long 210 # DW_AT_type |
| .byte 4 # Abbrev [4] 0xd2:0x7 DW_TAG_base_type |
| .long .Linfo_string12 # 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_str,"MS",@progbits,1 |
| .Linfo_string0: |
| .asciz "clang version 16.0.0" # string offset=0 |
| .Linfo_string1: |
| .asciz "main.cpp" # string offset=105 |
| .Linfo_string2: |
| .asciz "." # string offset=114 |
| .Linfo_string3: |
| .asciz "_ZL6helperi" # string offset=152 |
| .Linfo_string4: |
| .asciz "helper" # string offset=164 |
| .Linfo_string5: |
| .asciz "int" # string offset=171 |
| .Linfo_string6: |
| .asciz "i" # string offset=175 |
| .Linfo_string7: |
| .asciz "_Z13may_not_existv" # string offset=177 |
| .Linfo_string8: |
| .asciz "may_not_exist" # string offset=196 |
| .Linfo_string9: |
| .asciz "main" # string offset=210 |
| .Linfo_string10: |
| .asciz "argc" # string offset=215 |
| .Linfo_string11: |
| .asciz "argv" # string offset=220 |
| .Linfo_string12: |
| .asciz "char" # string offset=225 |
| .Linfo_string13: |
| .asciz "j" # string offset=230 |
| .weak _Z13may_not_existv |
| .ident "clang version 16.0.0" |
| .section ".note.GNU-stack","",@progbits |
| .addrsig |
| .addrsig_sym _Z13may_not_existv |
| .section .debug_line,"",@progbits |
| .Lline_table_start0: |
