| |
| # 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 |
| # RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.exe | FileCheck --check-prefix=PRECHECK %s |
| # RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.bolt > %t.txt |
| # RUN: llvm-objdump -d %t.bolt >> %t.txt |
| # RUN: cat %t.txt | FileCheck --check-prefix=POSTCHECK %s |
| |
| ## This test checks that we correctly handle DW_AT_low_pc [DW_FORM_addr] that is part of DW_TAG_label. |
| |
| # PRECHECK: version = 0x0004 |
| # PRECHECK: DW_TAG_label |
| # PRECHECK-NEXT: DW_AT_name |
| # PRECHECK-NEXT: DW_AT_decl_file |
| # PRECHECK-NEXT: DW_AT_decl_line |
| # PRECHECK-NEXT:DW_AT_low_pc [DW_FORM_addr] |
| # PRECHECK: DW_TAG_label |
| # PRECHECK-NEXT: DW_AT_name |
| # PRECHECK-NEXT: DW_AT_decl_file |
| # PRECHECK-NEXT: DW_AT_decl_line |
| # PRECHECK-NEXT:DW_AT_low_pc [DW_FORM_addr] |
| |
| # POSTCHECK: version = 0x0004 |
| # POSTCHECK: DW_TAG_label |
| # POSTCHECK-NEXT: DW_AT_name |
| # POSTCHECK-NEXT: DW_AT_decl_file |
| # POSTCHECK-NEXT: DW_AT_decl_line |
| # POSTCHECK-NEXT:DW_AT_low_pc [DW_FORM_addr] (0x[[ADDR:[1-9a-f]*]] |
| # POSTCHECK: DW_TAG_label |
| # POSTCHECK-NEXT: DW_AT_name |
| # POSTCHECK-NEXT: DW_AT_decl_file |
| # POSTCHECK-NEXT: DW_AT_decl_line |
| # POSTCHECK-NEXT:DW_AT_low_pc [DW_FORM_addr] (0x[[ADDR2:[1-9a-f]*]] |
| |
| # POSTCHECK: [[ADDR]]: 8b 45 f8 |
| # POSTCHECK: [[ADDR2]]: 8b 45 f8 |
| |
| ## clang++ main.cpp -g2 -gdwarf-4 -S |
| ## int main() { |
| ## int a = 4; |
| ## if (a == 5) |
| ## goto LABEL1; |
| ## else |
| ## goto LABEL2; |
| ## LABEL1:a++; |
| ## LABEL2:a--; |
| ## return 0; |
| ## } |
| |
| .text |
| .file "main.cpp" |
| .globl main # -- Begin function main |
| .p2align 4, 0x90 |
| .type main,@function |
| main: # @main |
| .Lfunc_begin0: |
| .file 1 "/home" "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 $0, -4(%rbp) |
| .Ltmp0: |
| .loc 1 2 7 prologue_end # main.cpp:2:7 |
| movl $4, -8(%rbp) |
| .Ltmp1: |
| .loc 1 3 9 # main.cpp:3:9 |
| cmpl $5, -8(%rbp) |
| .Ltmp2: |
| .loc 1 3 7 is_stmt 0 # main.cpp:3:7 |
| jne .LBB0_2 |
| # %bb.1: # %if.then |
| .Ltmp3: |
| .loc 1 4 5 is_stmt 1 # main.cpp:4:5 |
| jmp .LBB0_3 |
| .LBB0_2: # %if.else |
| .loc 1 6 5 # main.cpp:6:5 |
| jmp .LBB0_4 |
| .Ltmp4: |
| .LBB0_3: # %LABEL1 |
| #DEBUG_LABEL: main:LABEL1 |
| .loc 1 7 11 # main.cpp:7:11 |
| movl -8(%rbp), %eax |
| addl $1, %eax |
| movl %eax, -8(%rbp) |
| .LBB0_4: # %LABEL2 |
| .Ltmp5: |
| #DEBUG_LABEL: main:LABEL2 |
| .loc 1 8 11 # main.cpp:8:11 |
| movl -8(%rbp), %eax |
| addl $-1, %eax |
| movl %eax, -8(%rbp) |
| .loc 1 9 3 # main.cpp:9:3 |
| xorl %eax, %eax |
| .loc 1 9 3 epilogue_begin is_stmt 0 # main.cpp:9:3 |
| popq %rbp |
| .cfi_def_cfa %rsp, 8 |
| retq |
| .Ltmp6: |
| .Lfunc_end0: |
| .size main, .Lfunc_end0-main |
| .cfi_endproc |
| # -- 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 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 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 3 # Abbreviation Code |
| .byte 52 # DW_TAG_variable |
| .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 10 # DW_TAG_label |
| .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 17 # DW_AT_low_pc |
| .byte 1 # DW_FORM_addr |
| .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 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:0x6d 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:0x46 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 86 |
| .long .Linfo_string3 # DW_AT_name |
| .byte 1 # DW_AT_decl_file |
| .byte 1 # DW_AT_decl_line |
| .long 112 # DW_AT_type |
| # DW_AT_external |
| .byte 3 # Abbrev [3] 0x43:0xe DW_TAG_variable |
| .byte 2 # DW_AT_location |
| .byte 145 |
| .byte 120 |
| .long .Linfo_string5 # DW_AT_name |
| .byte 1 # DW_AT_decl_file |
| .byte 2 # DW_AT_decl_line |
| .long 112 # DW_AT_type |
| .byte 4 # Abbrev [4] 0x51:0xf DW_TAG_label |
| .long .Linfo_string6 # DW_AT_name |
| .byte 1 # DW_AT_decl_file |
| .byte 7 # DW_AT_decl_line |
| .quad .Ltmp4 # DW_AT_low_pc |
| .byte 4 # Abbrev [4] 0x60:0xf DW_TAG_label |
| .long .Linfo_string7 # DW_AT_name |
| .byte 1 # DW_AT_decl_file |
| .byte 8 # DW_AT_decl_line |
| .quad .Ltmp5 # DW_AT_low_pc |
| .byte 0 # End Of Children Mark |
| .byte 5 # Abbrev [5] 0x70:0x7 DW_TAG_base_type |
| .long .Linfo_string4 # DW_AT_name |
| .byte 5 # DW_AT_encoding |
| .byte 4 # DW_AT_byte_size |
| .byte 0 # End Of Children Mark |
| .Ldebug_info_end0: |
| .section .debug_str,"MS",@progbits,1 |
| .Linfo_string0: |
| .asciz "clang version 19.0.0git" # string offset=0 |
| .Linfo_string1: |
| .asciz "main.cpp" # string offset=24 |
| .Linfo_string2: |
| .asciz "/home" # string offset=33 |
| .Linfo_string3: |
| .asciz "main" # string offset=71 |
| .Linfo_string4: |
| .asciz "int" # string offset=76 |
| .Linfo_string5: |
| .asciz "a" # string offset=80 |
| .Linfo_string6: |
| .asciz "LABEL1" # string offset=82 |
| .Linfo_string7: |
| .asciz "LABEL2" # string offset=89 |
| .ident "clang version 19.0.0git" |
| .section ".note.GNU-stack","",@progbits |
| .addrsig |
| .section .debug_line,"",@progbits |
| .Lline_table_start0: |
