diff --git a/bolt/include/bolt/Core/BinaryContext.h b/bolt/include/bolt/Core/BinaryContext.h index 72c8817daa714..082f1cec34d52 100644 --- a/bolt/include/bolt/Core/BinaryContext.h +++ b/bolt/include/bolt/Core/BinaryContext.h @@ -326,6 +326,9 @@ class BinaryContext { /// Returns true if DWARF4 or lower is used. bool isDWARFLegacyUsed() const { return ContainsDwarfLegacy; } + /// Returns true if DWARFUnit is valid. + bool isValidDwarfUnit(DWARFUnit &DU) const; + std::map &getDwarfLineTables() { return DwarfLineTablesCUMap; } diff --git a/bolt/include/bolt/Core/DIEBuilder.h b/bolt/include/bolt/Core/DIEBuilder.h index e4a4fc6b2f258..4c3c277adf422 100644 --- a/bolt/include/bolt/Core/DIEBuilder.h +++ b/bolt/include/bolt/Core/DIEBuilder.h @@ -217,7 +217,8 @@ class DIEBuilder { std::optional Parent, uint32_t NumberParentsInChain); - void registerUnit(DWARFUnit &DU, bool NeedSort); + /// Returns true if DWARFUnit is registered successfully. + bool registerUnit(DWARFUnit &DU, bool NeedSort); /// \return the unique ID of \p U if it exists. std::optional getUnitId(const DWARFUnit &DU); diff --git a/bolt/lib/Core/BinaryContext.cpp b/bolt/lib/Core/BinaryContext.cpp index 72c72bbaf4a65..98440cde7cebd 100644 --- a/bolt/lib/Core/BinaryContext.cpp +++ b/bolt/lib/Core/BinaryContext.cpp @@ -1624,10 +1624,26 @@ DWARFContext *BinaryContext::getDWOContext() const { return &DWOCUs.begin()->second->getContext(); } +bool BinaryContext::isValidDwarfUnit(DWARFUnit &DU) const { + // Invalid DWARF unit with a DWOId but lacking a dwo_name. + if (DU.getDWOId() && !DU.isDWOUnit() && + !DU.getUnitDIE().find( + {dwarf::DW_AT_dwo_name, dwarf::DW_AT_GNU_dwo_name})) { + this->outs() << "BOLT-ERROR: broken DWARF found in CU at offset 0x" + << Twine::utohexstr(DU.getOffset()) << " (DWOId=0x" + << Twine::utohexstr(*(DU.getDWOId())) + << ", missing DW_AT_dwo_name / DW_AT_GNU_dwo_name)\n"; + return false; + } + return true; +} + /// Handles DWO sections that can either be in .o, .dwo or .dwp files. void BinaryContext::preprocessDWODebugInfo() { for (const std::unique_ptr &CU : DwCtx->compile_units()) { DWARFUnit *const DwarfUnit = CU.get(); + if (!isValidDwarfUnit(*DwarfUnit)) + continue; if (std::optional DWOId = DwarfUnit->getDWOId()) { std::string DWOName = dwarf::toString( DwarfUnit->getUnitDIE().find( diff --git a/bolt/lib/Core/DIEBuilder.cpp b/bolt/lib/Core/DIEBuilder.cpp index b041dc5ea1cce..7ce55f9165136 100644 --- a/bolt/lib/Core/DIEBuilder.cpp +++ b/bolt/lib/Core/DIEBuilder.cpp @@ -584,7 +584,8 @@ DWARFDie DIEBuilder::resolveDIEReference( if ((RefCU = getUnitForOffset(*this, *DwarfContext, TmpRefOffset, AttrSpec))) { /// Trying to add to current working set in case it's cross CU reference. - registerUnit(*RefCU, true); + if (!registerUnit(*RefCU, true)) + return DWARFDie(); DWARFDataExtractor DebugInfoData = RefCU->getDebugInfoExtractor(); if (DwarfDebugInfoEntry.extractFast(*RefCU, &TmpRefOffset, DebugInfoData, RefCU->getNextUnitOffset(), 0)) { @@ -1008,12 +1009,14 @@ static uint64_t getHash(const DWARFUnit &DU) { return DU.getOffset(); } -void DIEBuilder::registerUnit(DWARFUnit &DU, bool NeedSort) { +bool DIEBuilder::registerUnit(DWARFUnit &DU, bool NeedSort) { + if (!BC.isValidDwarfUnit(DU)) + return false; auto IterGlobal = AllProcessed.insert(getHash(DU)); // If DU is already in a current working set or was already processed we can // skip it. if (!IterGlobal.second) - return; + return true; if (getState().Type == ProcessingType::DWARF4TUs) { getState().DWARF4TUVector.push_back(&DU); } else if (getState().Type == ProcessingType::DWARF5TUs) { @@ -1034,6 +1037,7 @@ void DIEBuilder::registerUnit(DWARFUnit &DU, bool NeedSort) { if (getState().DUList.size() == getState().CloneUnitCtxMap.size()) getState().CloneUnitCtxMap.emplace_back(); getState().DUList.push_back(&DU); + return true; } std::optional DIEBuilder::getUnitId(const DWARFUnit &DU) { diff --git a/bolt/test/X86/dwarf5-dwoid-no-dwoname.s b/bolt/test/X86/dwarf5-dwoid-no-dwoname.s new file mode 100644 index 0000000000000..415d0b8f987e6 --- /dev/null +++ b/bolt/test/X86/dwarf5-dwoid-no-dwoname.s @@ -0,0 +1,629 @@ +## Check that DWARF CU with a valid DWOId but missing a dwo_name is correctly detected. +# RUN: rm -rf %t && mkdir -p %t && cd %t +# RUN: llvm-mc -dwarf-version=5 -filetype=obj -triple x86_64-unknown-linux %s -split-dwarf-file=main.dwo -o main.o +# RUN: %clang -O3 -g -gdwarf-5 -gsplit-dwarf -Wl,-q %t/main.o -o main.exe +# RUN: llvm-bolt %t/main.exe -o %t/main.exe.bolt -update-debug-sections 2>&1 | FileCheck %s --check-prefix=PRECHECK +# PRECHECK: BOLT-ERROR: broken DWARF found in CU at offset 0x3e (DWOId=0x0, missing DW_AT_dwo_name / DW_AT_GNU_dwo_name) + +## Checks that Broken dwarf CU is removed +# RUN: llvm-dwarfdump --show-form --verbose --debug-info %t/main.exe.bolt | FileCheck %s --check-prefix=POSTCHECK +# POSTCHECK-LABEL: .debug_info contents: +# POSTCHECK: DW_TAG_skeleton_unit +# POSTCHECK-DAG: DW_AT_dwo_name{{.*=.*\.dwo.*}} +# POSTCHECK: NULL +# POSTCHECK-NOT: DW_TAG_skeleton_unit + + .text + .file "main.cpp" + .section .rodata.cst16,"aM",@progbits,16 +.LCPI0_0: +.LCPI0_1: +.LCPI0_2: +.LCPI0_3: +.LCPI0_4: +.LCPI0_5: +.LCPI0_6: +.LCPI0_7: +.LCPI0_8: +.LCPI0_9: +.LCPI0_10: + .text + .globl main + .type main,@function +main: # @main +.Lfunc_begin0: + .file 1 "." "main.cpp" md5 0x8a68374187457ce14ac0c6c2121349a2 + .loc 1 5 0 # main.cpp:5:0 +# %bb.0: # %vector.ph +.Ltmp0: +.Ltmp1: +.LBB0_1: # %vector.body +.Ltmp2: + .file 2 "." "callee.cpp" md5 0x86e19c24983503540b9bb1a6f7bad737 + .loc 2 8 15 prologue_end # callee.cpp:8:15 +.Ltmp3: + .loc 2 3 15 # callee.cpp:3:15 +.Ltmp4: + .loc 2 8 15 # callee.cpp:8:15 +.Ltmp5: + .loc 2 9 19 # callee.cpp:9:19 +.Ltmp6: + .loc 2 9 13 is_stmt 0 # callee.cpp:9:13 +.Ltmp7: + .loc 2 3 15 is_stmt 1 # callee.cpp:3:15 + .loc 2 3 19 is_stmt 0 # callee.cpp:3:19 +.Ltmp8: + .loc 2 4 19 is_stmt 1 # callee.cpp:4:19 +.Ltmp9: + .loc 2 4 13 is_stmt 0 # callee.cpp:4:13 +.Ltmp10: + .loc 2 4 19 # callee.cpp:4:19 +.Ltmp11: + .loc 2 4 13 # callee.cpp:4:13 +.Ltmp12: + .loc 2 2 12 is_stmt 1 # callee.cpp:2:12 + .loc 2 2 17 is_stmt 0 # callee.cpp:2:17 +.Ltmp13: + .loc 2 4 13 is_stmt 1 # callee.cpp:4:13 +.Ltmp14: + .loc 2 0 0 is_stmt 0 # callee.cpp:0:0 +.Ltmp15: + .loc 1 8 13 is_stmt 1 # main.cpp:8:13 +.Ltmp16: + .loc 2 0 0 is_stmt 0 # callee.cpp:0:0 +.Ltmp17: + .loc 1 8 13 # main.cpp:8:13 +.Ltmp18: + .loc 1 7 35 is_stmt 1 # main.cpp:7:35 +.Ltmp19: +# %bb.2: # %middle.block + .loc 1 7 5 is_stmt 0 # main.cpp:7:5 +.Ltmp20: + .loc 1 11 9 is_stmt 1 # main.cpp:11:9 +.Ltmp21: + .loc 1 15 1 # main.cpp:15:1 + retq +.Ltmp22: +.Lfunc_end0: + .size main, .Lfunc_end0-main + .section .debug_abbrev,"",@progbits + .byte 1 # Abbreviation Code + .byte 74 # DW_TAG_skeleton_unit + .byte 1 # DW_CHILDREN_yes + .byte 16 # DW_AT_stmt_list + .byte 23 # DW_FORM_sec_offset + .byte 114 # DW_AT_str_offsets_base + .byte 23 # DW_FORM_sec_offset + .byte 27 # DW_AT_comp_dir + .byte 37 # DW_FORM_strx1 + .ascii "\264B" # DW_AT_GNU_pubnames + .byte 25 # DW_FORM_flag_present + .byte 118 # DW_AT_dwo_name + .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 + .byte 116 # DW_AT_rnglists_base + .byte 23 # DW_FORM_sec_offset + .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 27 # DW_FORM_addrx + .byte 18 # DW_AT_high_pc + .byte 6 # DW_FORM_data4 + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 3 # Abbreviation Code + .byte 29 # DW_TAG_inlined_subroutine + .byte 0 # DW_CHILDREN_no + .byte 49 # DW_AT_abstract_origin + .byte 16 # DW_FORM_ref_addr + .byte 85 # DW_AT_ranges + .byte 35 # DW_FORM_rnglistx + .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 4 # Abbreviation Code + .byte 74 # DW_TAG_skeleton_unit + .byte 1 # DW_CHILDREN_yes + .byte 16 # DW_AT_stmt_list + .byte 23 # DW_FORM_sec_offset + .byte 114 # DW_AT_str_offsets_base + .byte 23 # DW_FORM_sec_offset + .byte 27 # DW_AT_comp_dir + .byte 37 # DW_FORM_strx1 + .ascii "\264B" # DW_AT_GNU_pubnames + .byte 25 # DW_FORM_flag_present + .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 115 # DW_AT_addr_base + .byte 23 # DW_FORM_sec_offset + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 5 # Abbreviation Code + .byte 46 # DW_TAG_subprogram + .byte 0 # DW_CHILDREN_no + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 32 # DW_AT_inline + .byte 33 # DW_FORM_implicit_const + .byte 1 + .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 4 # DWARF Unit Type + .byte 8 # Address Size (in bytes) + .long .debug_abbrev # Offset Into Abbrev. Section + .quad -1861901018463438211 + .byte 1 # Abbrev [1] 0x14:0x2a DW_TAG_skeleton_unit + .long .Lline_table_start0 # DW_AT_stmt_list + .long .Lstr_offsets_base0 # DW_AT_str_offsets_base + .byte 0 # DW_AT_comp_dir + # DW_AT_GNU_pubnames + .byte 3 # DW_AT_dwo_name + .byte 0 # DW_AT_low_pc + .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc + .long .Laddr_table_base0 # DW_AT_addr_base + .long .Lrnglists_table_base0 # DW_AT_rnglists_base + .byte 2 # Abbrev [2] 0x2c:0x11 DW_TAG_subprogram + .byte 0 # DW_AT_low_pc + .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc + .byte 2 # DW_AT_name + .byte 3 # Abbrev [3] 0x33:0x9 DW_TAG_inlined_subroutine + .long .debug_info+100 # DW_AT_abstract_origin + .byte 0 # DW_AT_ranges + .byte 1 # DW_AT_call_file + .byte 8 # DW_AT_call_line + .byte 16 # DW_AT_call_column + .byte 0 # End Of Children Mark + .byte 0 # End Of Children Mark +.Ldebug_info_end0: +.Lcu_begin1: + .long .Ldebug_info_end1-.Ldebug_info_start1 # Length of Unit +.Ldebug_info_start1: + .short 5 # DWARF version number + .byte 4 # DWARF Unit Type + .byte 8 # Address Size (in bytes) + .long .debug_abbrev # Offset Into Abbrev. Section + .quad 0 + .byte 4 # Abbrev [4] 0x14:0x15 DW_TAG_skeleton_unit + .long .Lline_table_start0 # DW_AT_stmt_list + .long .Lstr_offsets_base0 # DW_AT_str_offsets_base + .byte 0 # DW_AT_comp_dir + # DW_AT_GNU_pubnames + .byte 4 # DW_AT_producer + .short 33 # DW_AT_language + .byte 5 # DW_AT_name + .long .Laddr_table_base0 # DW_AT_addr_base + .byte 5 # Abbrev [5] 0x26:0x2 DW_TAG_subprogram + .byte 1 # DW_AT_name + # DW_AT_inline + .byte 0 # End Of Children Mark +.Ldebug_info_end1: + .section .debug_rnglists,"",@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 1 # Offset entry count +.Lrnglists_table_base0: + .long .Ldebug_ranges1-.Lrnglists_table_base0 +.Ldebug_ranges1: + .byte 4 # DW_RLE_offset_pair + .uleb128 .Ltmp2-.Lfunc_begin0 # starting offset + .uleb128 .Ltmp15-.Lfunc_begin0 # ending offset + .byte 4 # DW_RLE_offset_pair + .uleb128 .Ltmp16-.Lfunc_begin0 # starting offset + .uleb128 .Ltmp17-.Lfunc_begin0 # ending offset + .byte 0 # DW_RLE_end_of_list +.Ldebug_list_header_end0: + .section .debug_str_offsets,"",@progbits + .long 28 # Length of String Offsets Set + .short 5 + .short 0 +.Lstr_offsets_base0: + .section .debug_str,"MS",@progbits,1 +.Lskel_string0: + .asciz "." # string offset=0 +.Lskel_string1: + .asciz "hotFunction" # string offset=45 +.Lskel_string2: + .asciz "main" # string offset=57 +.Lskel_string3: + .asciz "main.dwo" # string offset=62 +.Lskel_string4: + .asciz "clang version 16.0.6" # string offset=71 +.Lskel_string5: + .asciz "callee.cpp" # string offset=177 + .section .debug_str_offsets,"",@progbits + .long .Lskel_string0 + .long .Lskel_string1 + .long .Lskel_string2 + .long .Lskel_string3 + .long .Lskel_string4 + .long .Lskel_string5 + .section .debug_str_offsets.dwo,"e",@progbits + .long 56 # Length of String Offsets Set + .short 5 + .short 0 + .section .debug_str.dwo,"eMS",@progbits,1 +.Linfo_string0: + .asciz "_Z11hotFunctioni" # string offset=0 +.Linfo_string1: + .asciz "hotFunction" # string offset=17 +.Linfo_string2: + .asciz "int" # string offset=29 +.Linfo_string3: + .asciz "x" # string offset=33 +.Linfo_string4: + .asciz "main" # string offset=35 +.Linfo_string5: + .asciz "argc" # string offset=40 +.Linfo_string6: + .asciz "argv" # string offset=45 +.Linfo_string7: + .asciz "char" # string offset=50 +.Linfo_string8: + .asciz "sum" # string offset=55 +.Linfo_string9: + .asciz "i" # string offset=59 +.Linfo_string10: + .asciz "clang version 16.0.6" # string offset=61 +.Linfo_string11: + .asciz "main.cpp" # string offset=167 +.Linfo_string12: + .asciz "main.dwo" # string offset=176 + .section .debug_str_offsets.dwo,"e",@progbits + .long 0 + .long 17 + .long 29 + .long 33 + .long 35 + .long 40 + .long 45 + .long 50 + .long 55 + .long 59 + .long 61 + .long 167 + .long 176 + .section .debug_info.dwo,"e",@progbits + .long .Ldebug_info_dwo_end0-.Ldebug_info_dwo_start0 # Length of Unit +.Ldebug_info_dwo_start0: + .short 5 # DWARF version number + .byte 5 # DWARF Unit Type + .byte 8 # Address Size (in bytes) + .long 0 # Offset Into Abbrev. Section + .quad -1861901018463438211 + .byte 1 # Abbrev [1] 0x14:0x71 DW_TAG_compile_unit + .byte 10 # DW_AT_producer + .short 33 # DW_AT_language + .byte 11 # DW_AT_name + .byte 12 # DW_AT_dwo_name + .byte 2 # Abbrev [2] 0x1a:0x12 DW_TAG_subprogram + .byte 0 # DW_AT_linkage_name + .byte 1 # DW_AT_name + .byte 2 # DW_AT_decl_file + .byte 1 # DW_AT_decl_line + .long 44 # DW_AT_type + # DW_AT_external + # DW_AT_inline + .byte 3 # Abbrev [3] 0x23:0x8 DW_TAG_formal_parameter + .byte 3 # DW_AT_name + .byte 2 # DW_AT_decl_file + .byte 1 # DW_AT_decl_line + .long 44 # DW_AT_type + .byte 0 # End Of Children Mark + .byte 4 # Abbrev [4] 0x2c:0x4 DW_TAG_base_type + .byte 2 # DW_AT_name + .byte 5 # DW_AT_encoding + .byte 4 # DW_AT_byte_size + .byte 5 # Abbrev [5] 0x30:0x46 DW_TAG_subprogram + .byte 0 # 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 4 # DW_AT_name + .byte 1 # DW_AT_decl_file + .byte 5 # DW_AT_decl_line + .long 44 # DW_AT_type + # DW_AT_external + .byte 6 # Abbrev [6] 0x3f:0xa DW_TAG_formal_parameter + .byte 1 # DW_AT_location + .byte 85 + .byte 5 # DW_AT_name + .byte 1 # DW_AT_decl_file + .byte 5 # DW_AT_decl_line + .long 44 # DW_AT_type + .byte 6 # Abbrev [6] 0x49:0xa DW_TAG_formal_parameter + .byte 1 # DW_AT_location + .byte 84 + .byte 6 # DW_AT_name + .byte 1 # DW_AT_decl_file + .byte 5 # DW_AT_decl_line + .long 118 # DW_AT_type + .byte 7 # Abbrev [7] 0x53:0x9 DW_TAG_variable + .byte 0 # DW_AT_const_value + .byte 8 # DW_AT_name + .byte 1 # DW_AT_decl_file + .byte 6 # DW_AT_decl_line + .long 44 # DW_AT_type + .byte 8 # Abbrev [8] 0x5c:0x19 DW_TAG_lexical_block + .byte 1 # DW_AT_low_pc + .long .Ltmp20-.Ltmp2 # DW_AT_high_pc + .byte 7 # Abbrev [7] 0x62:0x9 DW_TAG_variable + .byte 0 # DW_AT_const_value + .byte 9 # DW_AT_name + .byte 1 # DW_AT_decl_file + .byte 7 # DW_AT_decl_line + .long 44 # DW_AT_type + .byte 9 # Abbrev [9] 0x6b:0x9 DW_TAG_inlined_subroutine + .long 26 # DW_AT_abstract_origin + .byte 0 # DW_AT_ranges + .byte 1 # DW_AT_call_file + .byte 8 # DW_AT_call_line + .byte 16 # DW_AT_call_column + .byte 0 # End Of Children Mark + .byte 0 # End Of Children Mark + .byte 10 # Abbrev [10] 0x76:0x5 DW_TAG_pointer_type + .long 123 # DW_AT_type + .byte 10 # Abbrev [10] 0x7b:0x5 DW_TAG_pointer_type + .long 128 # DW_AT_type + .byte 4 # Abbrev [4] 0x80:0x4 DW_TAG_base_type + .byte 7 # DW_AT_name + .byte 6 # DW_AT_encoding + .byte 1 # DW_AT_byte_size + .byte 0 # End Of Children Mark +.Ldebug_info_dwo_end0: + .section .debug_abbrev.dwo,"e",@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 118 # DW_AT_dwo_name + .byte 37 # DW_FORM_strx1 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 2 # Abbreviation Code + .byte 46 # DW_TAG_subprogram + .byte 1 # DW_CHILDREN_yes + .byte 110 # DW_AT_linkage_name + .byte 37 # DW_FORM_strx1 + .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 63 # DW_AT_external + .byte 25 # DW_FORM_flag_present + .byte 32 # DW_AT_inline + .byte 33 # DW_FORM_implicit_const + .byte 1 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 3 # Abbreviation Code + .byte 5 # DW_TAG_formal_parameter + .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 73 # DW_AT_type + .byte 19 # DW_FORM_ref4 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 4 # 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 5 # 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 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 6 # Abbreviation Code + .byte 5 # DW_TAG_formal_parameter + .byte 0 # DW_CHILDREN_no + .byte 2 # DW_AT_location + .byte 24 # DW_FORM_exprloc + .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 7 # Abbreviation Code + .byte 52 # DW_TAG_variable + .byte 0 # DW_CHILDREN_no + .byte 28 # DW_AT_const_value + .byte 13 # DW_FORM_sdata + .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 8 # Abbreviation Code + .byte 11 # DW_TAG_lexical_block + .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 0 # EOM(1) + .byte 0 # EOM(2) + .byte 9 # 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 85 # DW_AT_ranges + .byte 35 # DW_FORM_rnglistx + .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 10 # 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 0 # EOM(3) + .section .debug_rnglists.dwo,"e",@progbits + .long .Ldebug_list_header_end1-.Ldebug_list_header_start1 # Length +.Ldebug_list_header_start1: + .short 5 # Version + .byte 8 # Address size + .byte 0 # Segment selector size + .long 1 # Offset entry count +.Lrnglists_dwo_table_base0: + .long .Ldebug_ranges0-.Lrnglists_dwo_table_base0 +.Ldebug_ranges0: + .byte 4 # DW_RLE_offset_pair + .uleb128 .Ltmp2-.Lfunc_begin0 # starting offset + .uleb128 .Ltmp15-.Lfunc_begin0 # ending offset + .byte 4 # DW_RLE_offset_pair + .uleb128 .Ltmp16-.Lfunc_begin0 # starting offset + .uleb128 .Ltmp17-.Lfunc_begin0 # ending offset + .byte 0 # DW_RLE_end_of_list +.Ldebug_list_header_end1: + .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 .Lfunc_begin0 + .quad .Ltmp2 +.Ldebug_addr_end0: + .section .debug_gnu_pubnames,"",@progbits + .long .LpubNames_end0-.LpubNames_start0 # Length of Public Names Info +.LpubNames_start0: + .short 2 # DWARF Version + .long .Lcu_begin0 # Offset of Compilation Unit Info + .long 62 # Compilation Unit Length + .long 26 # DIE offset + .byte 48 # Attributes: FUNCTION, EXTERNAL + .asciz "hotFunction" # External Name + .long 48 # DIE offset + .byte 48 # Attributes: FUNCTION, EXTERNAL + .asciz "main" # External Name + .long 0 # End Mark +.LpubNames_end0: + .section .debug_gnu_pubtypes,"",@progbits + .long .LpubTypes_end0-.LpubTypes_start0 # Length of Public Types Info +.LpubTypes_start0: + .short 2 # DWARF Version + .long .Lcu_begin0 # Offset of Compilation Unit Info + .long 62 # Compilation Unit Length + .long 44 # DIE offset + .byte 144 # Attributes: TYPE, STATIC + .asciz "int" # External Name + .long 128 # DIE offset + .byte 144 # Attributes: TYPE, STATIC + .asciz "char" # External Name + .long 0 # End Mark +.LpubTypes_end0: + .section .debug_gnu_pubnames,"",@progbits + .long .LpubNames_end1-.LpubNames_start1 # Length of Public Names Info +.LpubNames_start1: + .short 2 # DWARF Version + .long .Lcu_begin1 # Offset of Compilation Unit Info + .long 41 # Compilation Unit Length + .long 0 # End Mark +.LpubNames_end1: + .section .debug_gnu_pubtypes,"",@progbits + .long .LpubTypes_end1-.LpubTypes_start1 # Length of Public Types Info +.LpubTypes_start1: + .short 2 # DWARF Version + .long .Lcu_begin1 # Offset of Compilation Unit Info + .long 41 # Compilation Unit Length + .long 0 # End Mark +.LpubTypes_end1: + .ident "clang version 16.0.6" + .ident "clang version 16.0.6" + .section .GCC.command.line,"MS",@progbits,1 + .zero 1 + .ascii "" + .zero 1 + .ascii "" + .zero 1 + .section .debug_gnu_pubtypes,"",@progbits + .section ".note.GNU-stack","",@progbits + .addrsig + .section .debug_line,"",@progbits +.Lline_table_start0: