# RUN: llvm-mc %s -filetype obj -triple x86_64-linux-elf -o - \ # RUN: | llvm-dwarfdump --debug-loc - \ # RUN: | FileCheck %s # RUN: llvm-mc %s -filetype obj -triple x86_64-linux-elf -o - \ # RUN: | llvm-dwarfdump --verify - \ # RUN: | FileCheck %s --check-prefix VERIFY # CHECK: .debug_loc contents: # CHECK: 0x00000000: # CHECK-NEXT: (0x0000000000000000, 0x0000000000000003): DW_OP_reg5 RDI # CHECK-NEXT: (0x0000000000000003, 0x0000000000000004): DW_OP_reg0 RAX # CHECK: 0x00000036: # CHECK-NEXT: (0x0000000000000010, 0x0000000000000013): DW_OP_reg5 RDI # CHECK-NEXT: (0x0000000000000013, 0x0000000000000014): DW_OP_reg0 RAX # VERIFY: Verifying .debug_info Unit Header Chain # VERIFY-NOT: DIE has invalid DW_AT_location encoding # Source: # int* foo(int* i) { return i; } # int* bar(int* i) { return i; } # Compile with: # clang -g -O3 test.c -S -o debugloc.s .text .file "test.c" .globl foo .align 16, 0x90 .type foo,@function foo: # @foo .Lfunc_begin0: .file 1 "test.c" .loc 1 1 0 # test.c:1:0 .cfi_startproc # %bb.0: #DEBUG_VALUE: foo:i <- %RDI .loc 1 2 3 prologue_end # test.c:2:3 movq %rdi, %rax .Ltmp0: #DEBUG_VALUE: foo:i <- %RAX retq .Ltmp1: .Lfunc_end0: .size foo, .Lfunc_end0-foo .cfi_endproc .globl bar .align 16, 0x90 .type bar,@function bar: # @bar .Lfunc_begin1: .loc 1 5 0 # test.c:5:0 .cfi_startproc # %bb.0: #DEBUG_VALUE: bar:i <- %RDI .loc 1 6 3 prologue_end # test.c:6:3 movq %rdi, %rax .Ltmp2: #DEBUG_VALUE: bar:i <- %RAX retq .Ltmp3: .Lfunc_end1: .size bar, .Lfunc_end1-bar .cfi_endproc .section .debug_str,"MS",@progbits,1 .Linfo_string0: .asciz "clang version 3.8.0-2ubuntu4 (tags/RELEASE_380/final)" # string offset=0 .Linfo_string1: .asciz "test.c" # string offset=54 .Linfo_string2: .asciz "/tmp" # string offset=61 .Linfo_string3: .asciz "foo" # string offset=66 .Linfo_string4: .asciz "int" # string offset=70 .Linfo_string5: .asciz "bar" # string offset=74 .Linfo_string6: .asciz "i" # string offset=78 .section .debug_loc,"",@progbits .Ldebug_loc0: .quad .Lfunc_begin0-.Lfunc_begin0 .quad .Ltmp0-.Lfunc_begin0 .short 1 # Loc expr size .byte 85 # DW_OP_reg5 .quad .Ltmp0-.Lfunc_begin0 .quad .Lfunc_end0-.Lfunc_begin0 .short 1 # Loc expr size .byte 80 # DW_OP_reg0 .quad 0 .quad 0 .Ldebug_loc1: .quad .Lfunc_begin1-.Lfunc_begin0 .quad .Ltmp2-.Lfunc_begin0 .short 1 # Loc expr size .byte 85 # DW_OP_reg5 .quad .Ltmp2-.Lfunc_begin0 .quad .Lfunc_end1-.Lfunc_begin0 .short 1 # Loc expr size .byte 80 # DW_OP_reg0 .quad 0 .quad 0 .section .debug_abbrev,"",@progbits .Lsection_abbrev: .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 .ascii "\341\177" # DW_AT_APPLE_optimized .byte 25 # DW_FORM_flag_present .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 .ascii "\347\177" # DW_AT_APPLE_omit_frame_ptr .byte 25 # DW_FORM_flag_present .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 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 .ascii "\341\177" # DW_AT_APPLE_optimized .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 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 4 # 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 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 .Lsection_info: .Lcu_begin0: .long 133 # Length of Unit .short 4 # DWARF version number .long .Lsection_abbrev # Offset Into Abbrev. Section .byte 8 # Address Size (in bytes) .byte 1 # Abbrev [1] 0xb:0x7e DW_TAG_compile_unit .long .Linfo_string0 # DW_AT_producer .short 12 # DW_AT_language .long .Linfo_string1 # DW_AT_name .long .Lline_table_start0 # DW_AT_stmt_list .long .Linfo_string2 # DW_AT_comp_dir # DW_AT_APPLE_optimized .quad .Lfunc_begin0 # DW_AT_low_pc .long .Lfunc_end1-.Lfunc_begin0 # DW_AT_high_pc .byte 2 # Abbrev [2] 0x2a:0x29 DW_TAG_subprogram .quad .Lfunc_begin0 # DW_AT_low_pc .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc # DW_AT_APPLE_omit_frame_ptr .byte 1 # DW_AT_frame_base .byte 87 .long .Linfo_string3 # DW_AT_name .byte 1 # DW_AT_decl_file .byte 1 # DW_AT_decl_line # DW_AT_prototyped .long 124 # DW_AT_type # DW_AT_external # DW_AT_APPLE_optimized .byte 3 # Abbrev [3] 0x43:0xf DW_TAG_formal_parameter .long .Ldebug_loc0 # DW_AT_location .long .Linfo_string6 # DW_AT_name .byte 1 # DW_AT_decl_file .byte 1 # DW_AT_decl_line .long 124 # DW_AT_type .byte 0 # End Of Children Mark .byte 2 # Abbrev [2] 0x53:0x29 DW_TAG_subprogram .quad .Lfunc_begin1 # DW_AT_low_pc .long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc # DW_AT_APPLE_omit_frame_ptr .byte 1 # DW_AT_frame_base .byte 87 .long .Linfo_string5 # DW_AT_name .byte 1 # DW_AT_decl_file .byte 5 # DW_AT_decl_line # DW_AT_prototyped .long 124 # DW_AT_type # DW_AT_external # DW_AT_APPLE_optimized .byte 3 # Abbrev [3] 0x6c:0xf DW_TAG_formal_parameter .long .Ldebug_loc1 # DW_AT_location .long .Linfo_string6 # DW_AT_name .byte 1 # DW_AT_decl_file .byte 5 # DW_AT_decl_line .long 124 # DW_AT_type .byte 0 # End Of Children Mark .byte 4 # Abbrev [4] 0x7c:0x5 DW_TAG_pointer_type .long 129 # DW_AT_type .byte 5 # Abbrev [5] 0x81:0x7 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 .section .debug_ranges,"",@progbits .Ldebug_range: .section .debug_macinfo,"",@progbits .byte 0 # End Of Macro List Mark .section .debug_pubnames,"",@progbits .long .LpubNames_end0-.LpubNames_begin0 # Length of Public Names Info .LpubNames_begin0: .short 2 # DWARF Version .long .Lcu_begin0 # Offset of Compilation Unit Info .long 137 # Compilation Unit Length .long 42 # DIE offset .asciz "foo" # External Name .long 83 # DIE offset .asciz "bar" # External Name .long 0 # End Mark .LpubNames_end0: .section .debug_pubtypes,"",@progbits .long .LpubTypes_end0-.LpubTypes_begin0 # Length of Public Types Info .LpubTypes_begin0: .short 2 # DWARF Version .long .Lcu_begin0 # Offset of Compilation Unit Info .long 137 # Compilation Unit Length .long 129 # DIE offset .asciz "int" # External Name .long 0 # End Mark .LpubTypes_end0: .ident "clang version 3.8.0-2ubuntu4 (tags/RELEASE_380/final)" .section ".note.GNU-stack","",@progbits .section .debug_line,"",@progbits .Lline_table_start0: