| # This test ensures that dwarfdump doesn't crash for malformed DWARF where a |
| # DIE references itself. |
| # |
| # Source: |
| # void f(); |
| # __attribute__((always_inline)) void g() { |
| # f(); |
| # } |
| # void h() { |
| # g(); |
| # }; |
| # |
| # Compile with: |
| # clang inlined.c -S -g -o inlined.s |
| # |
| # RUN: llvm-mc %s -filetype obj -triple x86_64-apple-darwin -o - \ |
| # RUN: | llvm-dwarfdump -debug-info - \ |
| # RUN: | FileCheck %s |
| |
| # CHECK: 0x0000005a: DW_TAG_inlined_subroutine |
| # CHECK-NEXT: DW_AT_abstract_origin (0x0000005a) |
| |
| .section __TEXT,__text,regular,pure_instructions |
| .macosx_version_min 10, 13 |
| .globl _g ## -- Begin function g |
| .p2align 4, 0x90 |
| _g: ## @g |
| Lfunc_begin0: |
| .file 1 "inlined.c" |
| .loc 1 2 0 ## inlined.c:2:0 |
| .cfi_startproc |
| ## %bb.0: ## %entry |
| pushq %rbp |
| .cfi_def_cfa_offset 16 |
| .cfi_offset %rbp, -16 |
| movq %rsp, %rbp |
| .cfi_def_cfa_register %rbp |
| Ltmp0: |
| .loc 1 3 3 prologue_end ## inlined.c:3:3 |
| movb $0, %al |
| callq _f |
| .loc 1 4 1 ## inlined.c:4:1 |
| popq %rbp |
| retq |
| Ltmp1: |
| Lfunc_end0: |
| .cfi_endproc |
| ## -- End function |
| .globl _h ## -- Begin function h |
| .p2align 4, 0x90 |
| _h: ## @h |
| Lfunc_begin1: |
| .loc 1 5 0 ## inlined.c:5:0 |
| .cfi_startproc |
| ## %bb.0: ## %entry |
| pushq %rbp |
| .cfi_def_cfa_offset 16 |
| .cfi_offset %rbp, -16 |
| movq %rsp, %rbp |
| .cfi_def_cfa_register %rbp |
| Ltmp2: |
| .loc 1 3 3 prologue_end ## inlined.c:3:3 |
| movb $0, %al |
| callq _f |
| Ltmp3: |
| .loc 1 7 1 ## inlined.c:7:1 |
| popq %rbp |
| retq |
| Ltmp4: |
| Lfunc_end1: |
| .cfi_endproc |
| ## -- End function |
| .section __DWARF,__debug_str,regular,debug |
| Linfo_string: |
| .asciz "clang version 7.0.0 " ## string offset=0 |
| .asciz "inlined.c" ## string offset=21 |
| .asciz "/private/tmp" ## string offset=31 |
| .asciz "g" ## string offset=44 |
| .asciz "h" ## string offset=46 |
| .section __DWARF,__debug_abbrev,regular,debug |
| 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 |
| .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 0 ## DW_CHILDREN_no |
| .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 49 ## DW_AT_abstract_origin |
| .byte 19 ## DW_FORM_ref4 |
| .byte 0 ## EOM(1) |
| .byte 0 ## EOM(2) |
| .byte 3 ## Abbreviation Code |
| .byte 46 ## DW_TAG_subprogram |
| .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 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 4 ## 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 63 ## DW_AT_external |
| .byte 25 ## DW_FORM_flag_present |
| .byte 0 ## EOM(1) |
| .byte 0 ## EOM(2) |
| .byte 5 ## 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 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 0 ## EOM(1) |
| .byte 0 ## EOM(2) |
| .byte 0 ## EOM(3) |
| .section __DWARF,__debug_info,regular,debug |
| Lsection_info: |
| Lcu_begin0: |
| .long 107 ## Length of Unit |
| .short 4 ## DWARF version number |
| Lset0 = Lsection_abbrev-Lsection_abbrev ## Offset Into Abbrev. Section |
| .long Lset0 |
| .byte 8 ## Address Size (in bytes) |
| .byte 1 ## Abbrev [1] 0xb:0x64 DW_TAG_compile_unit |
| .long 0 ## DW_AT_producer |
| .short 12 ## DW_AT_language |
| .long 21 ## DW_AT_name |
| Lset1 = Lline_table_start0-Lsection_line ## DW_AT_stmt_list |
| .long Lset1 |
| .long 31 ## DW_AT_comp_dir |
| .quad Lfunc_begin0 ## DW_AT_low_pc |
| Lset2 = Lfunc_end1-Lfunc_begin0 ## DW_AT_high_pc |
| .long Lset2 |
| .byte 2 ## Abbrev [2] 0x2a:0x13 DW_TAG_subprogram |
| .quad Lfunc_begin0 ## DW_AT_low_pc |
| Lset3 = Lfunc_end0-Lfunc_begin0 ## DW_AT_high_pc |
| .long Lset3 |
| .byte 1 ## DW_AT_frame_base |
| .byte 86 |
| .long 61 ## DW_AT_abstract_origin |
| .byte 3 ## Abbrev [3] 0x3d:0x8 DW_TAG_subprogram |
| .long 44 ## DW_AT_name |
| .byte 1 ## DW_AT_decl_file |
| .byte 2 ## DW_AT_decl_line |
| ## DW_AT_external |
| .byte 1 ## DW_AT_inline |
| .byte 4 ## Abbrev [4] 0x45:0x29 DW_TAG_subprogram |
| .quad Lfunc_begin1 ## DW_AT_low_pc |
| Lset4 = Lfunc_end1-Lfunc_begin1 ## DW_AT_high_pc |
| .long Lset4 |
| .byte 1 ## DW_AT_frame_base |
| .byte 86 |
| .long 46 ## DW_AT_name |
| .byte 1 ## DW_AT_decl_file |
| .byte 5 ## DW_AT_decl_line |
| ## DW_AT_external |
| .byte 5 ## Abbrev [5] 0x5a:0x13 DW_TAG_inlined_subroutine |
| .long 90 ## DW_AT_abstract_origin <- We modified the value so the DIE references itself. |
| .quad Ltmp2 ## DW_AT_low_pc |
| Lset5 = Ltmp3-Ltmp2 ## DW_AT_high_pc |
| .long Lset5 |
| .byte 1 ## DW_AT_call_file |
| .byte 6 ## DW_AT_call_line |
| .byte 0 ## End Of Children Mark |
| .byte 0 ## End Of Children Mark |
| .section __DWARF,__debug_ranges,regular,debug |
| Ldebug_range: |
| .section __DWARF,__debug_macinfo,regular,debug |
| Ldebug_macinfo: |
| Lcu_macro_begin0: |
| .byte 0 ## End Of Macro List Mark |
| .section __DWARF,__apple_names,regular,debug |
| Lnames_begin: |
| .long 1212240712 ## Header Magic |
| .short 1 ## Header Version |
| .short 0 ## Header Hash Function |
| .long 2 ## Header Bucket Count |
| .long 2 ## Header Hash Count |
| .long 12 ## Header Data Length |
| .long 0 ## HeaderData Die Offset Base |
| .long 1 ## HeaderData Atom Count |
| .short 1 ## DW_ATOM_die_offset |
| .short 6 ## DW_FORM_data4 |
| .long 0 ## Bucket 0 |
| .long 1 ## Bucket 1 |
| .long 177676 ## Hash in Bucket 0 |
| .long 177677 ## Hash in Bucket 1 |
| .long LNames0-Lnames_begin ## Offset in Bucket 0 |
| .long LNames1-Lnames_begin ## Offset in Bucket 1 |
| LNames0: |
| .long 44 ## g |
| .long 2 ## Num DIEs |
| .long 42 |
| .long 90 |
| .long 0 |
| LNames1: |
| .long 46 ## h |
| .long 1 ## Num DIEs |
| .long 69 |
| .long 0 |
| .section __DWARF,__apple_objc,regular,debug |
| Lobjc_begin: |
| .long 1212240712 ## Header Magic |
| .short 1 ## Header Version |
| .short 0 ## Header Hash Function |
| .long 1 ## Header Bucket Count |
| .long 0 ## Header Hash Count |
| .long 12 ## Header Data Length |
| .long 0 ## HeaderData Die Offset Base |
| .long 1 ## HeaderData Atom Count |
| .short 1 ## DW_ATOM_die_offset |
| .short 6 ## DW_FORM_data4 |
| .long -1 ## Bucket 0 |
| .section __DWARF,__apple_namespac,regular,debug |
| Lnamespac_begin: |
| .long 1212240712 ## Header Magic |
| .short 1 ## Header Version |
| .short 0 ## Header Hash Function |
| .long 1 ## Header Bucket Count |
| .long 0 ## Header Hash Count |
| .long 12 ## Header Data Length |
| .long 0 ## HeaderData Die Offset Base |
| .long 1 ## HeaderData Atom Count |
| .short 1 ## DW_ATOM_die_offset |
| .short 6 ## DW_FORM_data4 |
| .long -1 ## Bucket 0 |
| .section __DWARF,__apple_types,regular,debug |
| Ltypes_begin: |
| .long 1212240712 ## Header Magic |
| .short 1 ## Header Version |
| .short 0 ## Header Hash Function |
| .long 1 ## Header Bucket Count |
| .long 0 ## Header Hash Count |
| .long 20 ## Header Data Length |
| .long 0 ## HeaderData Die Offset Base |
| .long 3 ## HeaderData Atom Count |
| .short 1 ## DW_ATOM_die_offset |
| .short 6 ## DW_FORM_data4 |
| .short 3 ## DW_ATOM_die_tag |
| .short 5 ## DW_FORM_data2 |
| .short 4 ## DW_ATOM_type_flags |
| .short 11 ## DW_FORM_data1 |
| .long -1 ## Bucket 0 |
| |
| .subsections_via_symbols |
| .section __DWARF,__debug_line,regular,debug |
| Lsection_line: |
| Lline_table_start0: |
