diff options
author | Maksim Panchenko <maks@fb.com> | 2023-11-28 22:40:53 -0800 |
---|---|---|
committer | GitHub <noreply@github.com> | 2023-11-28 22:40:53 -0800 |
commit | 0acfe8483a1ab972a435bc551cc4a5c6c78be3f0 (patch) | |
tree | 8d8d6ca8d5f34e2ea8e7f1cd56a278517213a665 /bolt | |
parent | 35db35b7cfb80139ab6f23c7f10c47df5d1d7462 (diff) | |
download | llvm-0acfe8483a1ab972a435bc551cc4a5c6c78be3f0.zip llvm-0acfe8483a1ab972a435bc551cc4a5c6c78be3f0.tar.gz llvm-0acfe8483a1ab972a435bc551cc4a5c6c78be3f0.tar.bz2 |
[BOLT][DWARF] Fix output ranges for deleted code (#73464)
Set range low_pc to 0 for DIEs that correspond to deleted code.
Fixes #73428
Diffstat (limited to 'bolt')
-rw-r--r-- | bolt/lib/Rewrite/DWARFRewriter.cpp | 3 | ||||
-rw-r--r-- | bolt/test/X86/dwarf4-deleted-range.s | 432 | ||||
-rw-r--r-- | bolt/test/X86/dwarf5-deleted-range.s | 484 |
3 files changed, 917 insertions, 2 deletions
diff --git a/bolt/lib/Rewrite/DWARFRewriter.cpp b/bolt/lib/Rewrite/DWARFRewriter.cpp index 3bba617..0beb865 100644 --- a/bolt/lib/Rewrite/DWARFRewriter.cpp +++ b/bolt/lib/Rewrite/DWARFRewriter.cpp @@ -961,8 +961,7 @@ void DWARFRewriter::updateUnitDebugInfo( std::move(OutputRanges), CachedRanges); OutputRanges.clear(); } else if (OutputRanges.empty()) { - OutputRanges.push_back({RangesOrError.get().front().LowPC, - RangesOrError.get().front().HighPC}); + OutputRanges.push_back({0, RangesOrError.get().front().HighPC}); } } else if (!RangesOrError) { consumeError(RangesOrError.takeError()); diff --git a/bolt/test/X86/dwarf4-deleted-range.s b/bolt/test/X86/dwarf4-deleted-range.s new file mode 100644 index 0000000..7938bc0 --- /dev/null +++ b/bolt/test/X86/dwarf4-deleted-range.s @@ -0,0 +1,432 @@ +# REQUIRES: system-linux + +# RUN: llvm-mc -dwarf-version=4 -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_GNU_call_site +# CHECK: DW_AT_low_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 ... +# +# 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 1 "." "unreachable.c" + .globl main # -- Begin function main + .p2align 4, 0x90 + .type main,@function +main: # @main +.Lfunc_begin0: + .loc 1 7 0 # unreachable.c:7:0 + .cfi_startproc +# %bb.0: + #DEBUG_VALUE: main:argc <- $edi + #DEBUG_VALUE: main:argv <- $rsi + .loc 1 8 7 prologue_end # unreachable.c:8:7 + testl %edi, %edi +.Ltmp0: + .loc 1 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 1 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 1 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 1 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_loc,"",@progbits +.Ldebug_loc0: + .quad .Lfunc_begin0-.Lfunc_begin0 + .quad .Ltmp3-.Lfunc_begin0 + .short 1 # Loc expr size + .byte 85 # super-register DW_OP_reg5 + .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 .Ltmp4-.Lfunc_begin0 + .short 1 # Loc expr size + .byte 84 # DW_OP_reg4 + .quad .Ltmp4-.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 + .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 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 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 6 # Abbreviation Code + .byte 36 # DW_TAG_base_type + .byte 0 # DW_CHILDREN_no + .byte 3 # DW_AT_name + .byte 14 # DW_FORM_strp + .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 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 32 # DW_AT_inline + .byte 11 # DW_FORM_data1 + .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 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 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 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 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 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 11 # 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 12 # Abbreviation Code + .byte 46 # DW_TAG_subprogram + .byte 1 # DW_CHILDREN_yes + .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 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 4 # DWARF version number + .long .debug_abbrev # Offset Into Abbrev. Section + .byte 8 # Address Size (in bytes) + .byte 1 # Abbrev [1] 0xb:0xd4 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 + .quad .Lfunc_begin0 # DW_AT_low_pc + .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc + .byte 2 # Abbrev [2] 0x2a:0x11 DW_TAG_variable + .long 59 # DW_AT_type + .byte 1 # DW_AT_decl_file + .byte 4 # DW_AT_decl_line + .byte 9 # DW_AT_location + .byte 3 + .quad .L.str + .byte 3 # Abbrev [3] 0x3b:0xc DW_TAG_array_type + .long 71 # DW_AT_type + .byte 4 # Abbrev [4] 0x40:0x6 DW_TAG_subrange_type + .long 78 # DW_AT_type + .byte 3 # DW_AT_count + .byte 0 # End Of Children Mark + .byte 5 # Abbrev [5] 0x47:0x7 DW_TAG_base_type + .long .Linfo_string3 # DW_AT_name + .byte 6 # DW_AT_encoding + .byte 1 # DW_AT_byte_size + .byte 6 # Abbrev [6] 0x4e:0x7 DW_TAG_base_type + .long .Linfo_string4 # DW_AT_name + .byte 8 # DW_AT_byte_size + .byte 7 # DW_AT_encoding + .byte 7 # Abbrev [7] 0x55:0x8 DW_TAG_subprogram + .long .Linfo_string5 # DW_AT_name + .byte 1 # DW_AT_decl_file + .byte 3 # DW_AT_decl_line + .byte 1 # DW_AT_inline + .byte 8 # Abbrev [8] 0x5d:0x59 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_string7 # DW_AT_name + .byte 1 # DW_AT_decl_file + .byte 7 # DW_AT_decl_line + # DW_AT_prototyped + .long 205 # DW_AT_type + # DW_AT_external + .byte 9 # Abbrev [9] 0x76:0xf DW_TAG_formal_parameter + .long .Ldebug_loc0 # DW_AT_location + .long .Linfo_string9 # DW_AT_name + .byte 1 # DW_AT_decl_file + .byte 7 # DW_AT_decl_line + .long 205 # DW_AT_type + .byte 9 # Abbrev [9] 0x85:0xf DW_TAG_formal_parameter + .long .Ldebug_loc1 # DW_AT_location + .long .Linfo_string10 # DW_AT_name + .byte 1 # DW_AT_decl_file + .byte 7 # DW_AT_decl_line + .long 212 # DW_AT_type + .byte 10 # Abbrev [10] 0x94:0x14 DW_TAG_inlined_subroutine + .long 85 # DW_AT_abstract_origin + .quad .Ltmp2 # DW_AT_low_pc + .long .Ltmp5-.Ltmp2 # DW_AT_high_pc + .byte 1 # DW_AT_call_file + .byte 9 # DW_AT_call_line + .byte 5 # DW_AT_call_column + .byte 11 # Abbrev [11] 0xa8:0xd DW_TAG_GNU_call_site + .long 182 # DW_AT_abstract_origin + .quad .Ltmp4 # DW_AT_low_pc + .byte 0 # End Of Children Mark + .byte 12 # Abbrev [12] 0xb6:0xd DW_TAG_subprogram + .long .Linfo_string6 # DW_AT_name + .byte 1 # DW_AT_decl_file + .byte 1 # DW_AT_decl_line + # DW_AT_prototyped + # DW_AT_declaration + # DW_AT_external + .byte 13 # Abbrev [13] 0xbd:0x5 DW_TAG_formal_parameter + .long 195 # DW_AT_type + .byte 0 # End Of Children Mark + .byte 14 # Abbrev [14] 0xc3:0x5 DW_TAG_pointer_type + .long 200 # DW_AT_type + .byte 15 # Abbrev [15] 0xc8:0x5 DW_TAG_const_type + .long 71 # DW_AT_type + .byte 5 # Abbrev [5] 0xcd:0x7 DW_TAG_base_type + .long .Linfo_string8 # DW_AT_name + .byte 5 # DW_AT_encoding + .byte 4 # DW_AT_byte_size + .byte 14 # Abbrev [14] 0xd4:0x5 DW_TAG_pointer_type + .long 217 # DW_AT_type + .byte 14 # Abbrev [14] 0xd9:0x5 DW_TAG_pointer_type + .long 71 # DW_AT_type + .byte 0 # End Of Children Mark +.Ldebug_info_end0: + .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_line,"",@progbits +.Lline_table_start0: diff --git a/bolt/test/X86/dwarf5-deleted-range.s b/bolt/test/X86/dwarf5-deleted-range.s new file mode 100644 index 0000000..241c694 --- /dev/null +++ b/bolt/test/X86/dwarf5-deleted-range.s @@ -0,0 +1,484 @@ +# 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: |