| # REQUIRES: system-linux |
| |
| # RUN: llvm-mc -dwarf-version=5 -filetype=obj -triple x86_64-unknown-linux %s -o %tmain.o |
| # RUN: %clang %cflags -no-pie %s -o %t.exe -Wl,-q |
| # RUN: llvm-bolt %t.exe -o %t.bolt --update-debug-sections |
| # RUN: llvm-dwarfdump --show-children --name=main --debug-info %t.bolt \ |
| # RUN: | FileCheck %s |
| |
| # CHECK: DW_TAG_inlined_subroutine |
| # CHECK: DW_AT_low_pc |
| # CHECK-SAME: 0x0000000000000000 |
| |
| # CHECK: DW_TAG_call_site |
| # CHECK: DW_AT_call_return_pc |
| # CHECK-SAME: 0x0000000000000000 |
| |
| ## Test that llvm-bolt correctly updates DIEs corresponding to deleted code. |
| |
| # Test case built from the following source using: |
| # |
| # clang -O2 -g -gdwarf-5 ... |
| # |
| # Assembly modified with "je" -> "jmp" to introduce unreachable block. |
| # |
| # extern void puts(const char *); |
| # |
| # static void foo() { |
| # puts("hi"); |
| # } |
| # |
| # int main(int argc, char **argv) { |
| # if (argc) |
| # foo(); |
| # return 0; |
| # } |
| |
| .text |
| .file "unreachable.c" |
| .file 0 "." "unreachable.c" md5 0xd268d8460ea246544a440d4d42235947 |
| .globl main # -- Begin function main |
| .p2align 4, 0x90 |
| .type main,@function |
| main: # @main |
| .Lfunc_begin0: |
| .loc 0 7 0 # unreachable.c:7:0 |
| .cfi_startproc |
| # %bb.0: |
| #DEBUG_VALUE: main:argc <- $edi |
| #DEBUG_VALUE: main:argv <- $rsi |
| .loc 0 8 7 prologue_end # unreachable.c:8:7 |
| testl %edi, %edi |
| .Ltmp0: |
| .loc 0 8 7 is_stmt 0 # unreachable.c:8:7 |
| jmp .LBB0_2 |
| .Ltmp1: |
| # %bb.1: |
| #DEBUG_VALUE: main:argc <- $edi |
| #DEBUG_VALUE: main:argv <- $rsi |
| pushq %rax |
| .cfi_def_cfa_offset 16 |
| .Ltmp2: |
| .loc 0 4 3 is_stmt 1 # unreachable.c:4:3 |
| movl $.L.str, %edi |
| .Ltmp3: |
| #DEBUG_VALUE: main:argc <- [DW_OP_LLVM_entry_value 1] $edi |
| callq puts |
| .Ltmp4: |
| #DEBUG_VALUE: main:argv <- [DW_OP_LLVM_entry_value 1] $rsi |
| .loc 0 0 3 is_stmt 0 # unreachable.c:0:3 |
| addq $8, %rsp |
| .Ltmp5: |
| .cfi_def_cfa_offset 8 |
| .LBB0_2: |
| #DEBUG_VALUE: main:argc <- [DW_OP_LLVM_entry_value 1] $edi |
| #DEBUG_VALUE: main:argv <- [DW_OP_LLVM_entry_value 1] $rsi |
| .loc 0 10 3 is_stmt 1 # unreachable.c:10:3 |
| xorl %eax, %eax |
| retq |
| .Ltmp6: |
| .Lfunc_end0: |
| .size main, .Lfunc_end0-main |
| .cfi_endproc |
| # -- End function |
| .type .L.str,@object # @.str |
| .section .rodata.str1.1,"aMS",@progbits,1 |
| .L.str: |
| .asciz "hi" |
| .size .L.str, 3 |
| |
| .section .debug_loclists,"",@progbits |
| .long .Ldebug_list_header_end0-.Ldebug_list_header_start0 # Length |
| .Ldebug_list_header_start0: |
| .short 5 # Version |
| .byte 8 # Address size |
| .byte 0 # Segment selector size |
| .long 2 # Offset entry count |
| .Lloclists_table_base0: |
| .long .Ldebug_loc0-.Lloclists_table_base0 |
| .long .Ldebug_loc1-.Lloclists_table_base0 |
| .Ldebug_loc0: |
| .byte 4 # DW_LLE_offset_pair |
| .uleb128 .Lfunc_begin0-.Lfunc_begin0 # starting offset |
| .uleb128 .Ltmp3-.Lfunc_begin0 # ending offset |
| .byte 1 # Loc expr size |
| .byte 85 # super-register DW_OP_reg5 |
| .byte 4 # DW_LLE_offset_pair |
| .uleb128 .Ltmp3-.Lfunc_begin0 # starting offset |
| .uleb128 .Lfunc_end0-.Lfunc_begin0 # ending offset |
| .byte 4 # Loc expr size |
| .byte 163 # DW_OP_entry_value |
| .byte 1 # 1 |
| .byte 85 # super-register DW_OP_reg5 |
| .byte 159 # DW_OP_stack_value |
| .byte 0 # DW_LLE_end_of_list |
| .Ldebug_loc1: |
| .byte 4 # DW_LLE_offset_pair |
| .uleb128 .Lfunc_begin0-.Lfunc_begin0 # starting offset |
| .uleb128 .Ltmp4-.Lfunc_begin0 # ending offset |
| .byte 1 # Loc expr size |
| .byte 84 # DW_OP_reg4 |
| .byte 4 # DW_LLE_offset_pair |
| .uleb128 .Ltmp4-.Lfunc_begin0 # starting offset |
| .uleb128 .Lfunc_end0-.Lfunc_begin0 # ending offset |
| .byte 4 # Loc expr size |
| .byte 163 # DW_OP_entry_value |
| .byte 1 # 1 |
| .byte 84 # DW_OP_reg4 |
| .byte 159 # DW_OP_stack_value |
| .byte 0 # DW_LLE_end_of_list |
| .Ldebug_list_header_end0: |
| .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 37 # DW_FORM_strx1 |
| .byte 19 # DW_AT_language |
| .byte 5 # DW_FORM_data2 |
| .byte 3 # DW_AT_name |
| .byte 37 # DW_FORM_strx1 |
| .byte 114 # DW_AT_str_offsets_base |
| .byte 23 # DW_FORM_sec_offset |
| .byte 16 # DW_AT_stmt_list |
| .byte 23 # DW_FORM_sec_offset |
| .byte 27 # DW_AT_comp_dir |
| .byte 37 # DW_FORM_strx1 |
| .byte 17 # DW_AT_low_pc |
| .byte 27 # DW_FORM_addrx |
| .byte 18 # DW_AT_high_pc |
| .byte 6 # DW_FORM_data4 |
| .byte 115 # DW_AT_addr_base |
| .byte 23 # DW_FORM_sec_offset |
| .ascii "\214\001" # DW_AT_loclists_base |
| .byte 23 # DW_FORM_sec_offset |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .byte 2 # Abbreviation Code |
| .byte 52 # DW_TAG_variable |
| .byte 0 # DW_CHILDREN_no |
| .byte 73 # DW_AT_type |
| .byte 19 # DW_FORM_ref4 |
| .byte 58 # DW_AT_decl_file |
| .byte 11 # DW_FORM_data1 |
| .byte 59 # DW_AT_decl_line |
| .byte 11 # DW_FORM_data1 |
| .byte 2 # DW_AT_location |
| .byte 24 # DW_FORM_exprloc |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .byte 3 # Abbreviation Code |
| .byte 1 # DW_TAG_array_type |
| .byte 1 # DW_CHILDREN_yes |
| .byte 73 # DW_AT_type |
| .byte 19 # DW_FORM_ref4 |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .byte 4 # Abbreviation Code |
| .byte 33 # DW_TAG_subrange_type |
| .byte 0 # DW_CHILDREN_no |
| .byte 73 # DW_AT_type |
| .byte 19 # DW_FORM_ref4 |
| .byte 55 # DW_AT_count |
| .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 |
| .byte 37 # DW_FORM_strx1 |
| .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 36 # DW_TAG_base_type |
| .byte 0 # DW_CHILDREN_no |
| .byte 3 # DW_AT_name |
| .byte 37 # DW_FORM_strx1 |
| .byte 11 # DW_AT_byte_size |
| .byte 11 # DW_FORM_data1 |
| .byte 62 # DW_AT_encoding |
| .byte 11 # DW_FORM_data1 |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .byte 7 # Abbreviation Code |
| .byte 46 # DW_TAG_subprogram |
| .byte 0 # DW_CHILDREN_no |
| .byte 3 # DW_AT_name |
| .byte 37 # DW_FORM_strx1 |
| .byte 58 # DW_AT_decl_file |
| .byte 11 # DW_FORM_data1 |
| .byte 59 # DW_AT_decl_line |
| .byte 11 # DW_FORM_data1 |
| .byte 32 # DW_AT_inline |
| .byte 33 # DW_FORM_implicit_const |
| .byte 1 |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .byte 8 # Abbreviation Code |
| .byte 46 # DW_TAG_subprogram |
| .byte 1 # DW_CHILDREN_yes |
| .byte 17 # DW_AT_low_pc |
| .byte 27 # DW_FORM_addrx |
| .byte 18 # DW_AT_high_pc |
| .byte 6 # DW_FORM_data4 |
| .byte 64 # DW_AT_frame_base |
| .byte 24 # DW_FORM_exprloc |
| .byte 122 # DW_AT_call_all_calls |
| .byte 25 # DW_FORM_flag_present |
| .byte 3 # DW_AT_name |
| .byte 37 # DW_FORM_strx1 |
| .byte 58 # DW_AT_decl_file |
| .byte 11 # DW_FORM_data1 |
| .byte 59 # DW_AT_decl_line |
| .byte 11 # DW_FORM_data1 |
| .byte 39 # DW_AT_prototyped |
| .byte 25 # DW_FORM_flag_present |
| .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 9 # Abbreviation Code |
| .byte 5 # DW_TAG_formal_parameter |
| .byte 0 # DW_CHILDREN_no |
| .byte 2 # DW_AT_location |
| .byte 34 # DW_FORM_loclistx |
| .byte 3 # DW_AT_name |
| .byte 37 # DW_FORM_strx1 |
| .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 10 # 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 |
| .byte 27 # DW_FORM_addrx |
| .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 11 # Abbreviation Code |
| .byte 72 # DW_TAG_call_site |
| .byte 0 # DW_CHILDREN_no |
| .byte 127 # DW_AT_call_origin |
| .byte 19 # DW_FORM_ref4 |
| .byte 125 # DW_AT_call_return_pc |
| .byte 27 # DW_FORM_addrx |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .byte 12 # Abbreviation Code |
| .byte 46 # DW_TAG_subprogram |
| .byte 1 # DW_CHILDREN_yes |
| .byte 3 # DW_AT_name |
| .byte 37 # DW_FORM_strx1 |
| .byte 58 # DW_AT_decl_file |
| .byte 11 # DW_FORM_data1 |
| .byte 59 # DW_AT_decl_line |
| .byte 11 # DW_FORM_data1 |
| .byte 39 # DW_AT_prototyped |
| .byte 25 # DW_FORM_flag_present |
| .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 13 # Abbreviation Code |
| .byte 5 # DW_TAG_formal_parameter |
| .byte 0 # DW_CHILDREN_no |
| .byte 73 # DW_AT_type |
| .byte 19 # DW_FORM_ref4 |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .byte 14 # 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 15 # 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 5 # DWARF version number |
| .byte 1 # DWARF Unit Type |
| .byte 8 # Address Size (in bytes) |
| .long .debug_abbrev # Offset Into Abbrev. Section |
| .byte 1 # Abbrev [1] 0xc:0x95 DW_TAG_compile_unit |
| .byte 0 # DW_AT_producer |
| .short 12 # DW_AT_language |
| .byte 1 # DW_AT_name |
| .long .Lstr_offsets_base0 # DW_AT_str_offsets_base |
| .long .Lline_table_start0 # DW_AT_stmt_list |
| .byte 2 # DW_AT_comp_dir |
| .byte 1 # DW_AT_low_pc |
| .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc |
| .long .Laddr_table_base0 # DW_AT_addr_base |
| .long .Lloclists_table_base0 # DW_AT_loclists_base |
| .byte 2 # Abbrev [2] 0x27:0xa DW_TAG_variable |
| .long 49 # DW_AT_type |
| .byte 0 # DW_AT_decl_file |
| .byte 4 # DW_AT_decl_line |
| .byte 2 # DW_AT_location |
| .byte 161 |
| .byte 0 |
| .byte 3 # Abbrev [3] 0x31:0xc DW_TAG_array_type |
| .long 61 # DW_AT_type |
| .byte 4 # Abbrev [4] 0x36:0x6 DW_TAG_subrange_type |
| .long 65 # DW_AT_type |
| .byte 3 # DW_AT_count |
| .byte 0 # End Of Children Mark |
| .byte 5 # Abbrev [5] 0x3d:0x4 DW_TAG_base_type |
| .byte 3 # DW_AT_name |
| .byte 6 # DW_AT_encoding |
| .byte 1 # DW_AT_byte_size |
| .byte 6 # Abbrev [6] 0x41:0x4 DW_TAG_base_type |
| .byte 4 # DW_AT_name |
| .byte 8 # DW_AT_byte_size |
| .byte 7 # DW_AT_encoding |
| .byte 7 # Abbrev [7] 0x45:0x4 DW_TAG_subprogram |
| .byte 5 # DW_AT_name |
| .byte 0 # DW_AT_decl_file |
| .byte 3 # DW_AT_decl_line |
| # DW_AT_inline |
| .byte 8 # Abbrev [8] 0x49:0x35 DW_TAG_subprogram |
| .byte 1 # DW_AT_low_pc |
| .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc |
| .byte 1 # DW_AT_frame_base |
| .byte 87 |
| # DW_AT_call_all_calls |
| .byte 7 # DW_AT_name |
| .byte 0 # DW_AT_decl_file |
| .byte 7 # DW_AT_decl_line |
| # DW_AT_prototyped |
| .long 146 # DW_AT_type |
| # DW_AT_external |
| .byte 9 # Abbrev [9] 0x58:0x9 DW_TAG_formal_parameter |
| .byte 0 # DW_AT_location |
| .byte 9 # DW_AT_name |
| .byte 0 # DW_AT_decl_file |
| .byte 7 # DW_AT_decl_line |
| .long 146 # DW_AT_type |
| .byte 9 # Abbrev [9] 0x61:0x9 DW_TAG_formal_parameter |
| .byte 1 # DW_AT_location |
| .byte 10 # DW_AT_name |
| .byte 0 # DW_AT_decl_file |
| .byte 7 # DW_AT_decl_line |
| .long 150 # DW_AT_type |
| .byte 10 # Abbrev [10] 0x6a:0xd DW_TAG_inlined_subroutine |
| .long 69 # DW_AT_abstract_origin |
| .byte 2 # DW_AT_low_pc |
| .long .Ltmp5-.Ltmp2 # DW_AT_high_pc |
| .byte 0 # DW_AT_call_file |
| .byte 9 # DW_AT_call_line |
| .byte 5 # DW_AT_call_column |
| .byte 11 # Abbrev [11] 0x77:0x6 DW_TAG_call_site |
| .long 126 # DW_AT_call_origin |
| .byte 3 # DW_AT_call_return_pc |
| .byte 0 # End Of Children Mark |
| .byte 12 # Abbrev [12] 0x7e:0xa DW_TAG_subprogram |
| .byte 6 # DW_AT_name |
| .byte 0 # DW_AT_decl_file |
| .byte 1 # DW_AT_decl_line |
| # DW_AT_prototyped |
| # DW_AT_declaration |
| # DW_AT_external |
| .byte 13 # Abbrev [13] 0x82:0x5 DW_TAG_formal_parameter |
| .long 136 # DW_AT_type |
| .byte 0 # End Of Children Mark |
| .byte 14 # Abbrev [14] 0x88:0x5 DW_TAG_pointer_type |
| .long 141 # DW_AT_type |
| .byte 15 # Abbrev [15] 0x8d:0x5 DW_TAG_const_type |
| .long 61 # DW_AT_type |
| .byte 5 # Abbrev [5] 0x92:0x4 DW_TAG_base_type |
| .byte 8 # DW_AT_name |
| .byte 5 # DW_AT_encoding |
| .byte 4 # DW_AT_byte_size |
| .byte 14 # Abbrev [14] 0x96:0x5 DW_TAG_pointer_type |
| .long 155 # DW_AT_type |
| .byte 14 # Abbrev [14] 0x9b:0x5 DW_TAG_pointer_type |
| .long 61 # DW_AT_type |
| .byte 0 # End Of Children Mark |
| .Ldebug_info_end0: |
| .section .debug_str_offsets,"",@progbits |
| .long 48 # Length of String Offsets Set |
| .short 5 |
| .short 0 |
| .Lstr_offsets_base0: |
| .section .debug_str,"MS",@progbits,1 |
| .Linfo_string0: |
| .asciz "clang version 15.0.7 " # string offset=0 |
| .Linfo_string1: |
| .asciz "unreachable.c" # string offset=69 |
| .Linfo_string2: |
| .asciz "." # string offset=83 |
| .Linfo_string3: |
| .asciz "char" # string offset=85 |
| .Linfo_string4: |
| .asciz "__ARRAY_SIZE_TYPE__" # string offset=90 |
| .Linfo_string5: |
| .asciz "foo" # string offset=110 |
| .Linfo_string6: |
| .asciz "puts" # string offset=114 |
| .Linfo_string7: |
| .asciz "main" # string offset=119 |
| .Linfo_string8: |
| .asciz "int" # string offset=124 |
| .Linfo_string9: |
| .asciz "argc" # string offset=128 |
| .Linfo_string10: |
| .asciz "argv" # string offset=133 |
| .section .debug_str_offsets,"",@progbits |
| .long .Linfo_string0 |
| .long .Linfo_string1 |
| .long .Linfo_string2 |
| .long .Linfo_string3 |
| .long .Linfo_string4 |
| .long .Linfo_string5 |
| .long .Linfo_string6 |
| .long .Linfo_string7 |
| .long .Linfo_string8 |
| .long .Linfo_string9 |
| .long .Linfo_string10 |
| .section .debug_addr,"",@progbits |
| .long .Ldebug_addr_end0-.Ldebug_addr_start0 # Length of contribution |
| .Ldebug_addr_start0: |
| .short 5 # DWARF version number |
| .byte 8 # Address size |
| .byte 0 # Segment selector size |
| .Laddr_table_base0: |
| .quad .L.str |
| .quad .Lfunc_begin0 |
| .quad .Ltmp2 |
| .quad .Ltmp4 |
| .Ldebug_addr_end0: |
| .section .debug_line,"",@progbits |
| .Lline_table_start0: |
