From: Xing GUO Date: Fri, 21 Aug 2020 04:14:58 +0000 (+0800) Subject: Revert "[DWARFYAML] Add support for referencing different abbrev tables." X-Git-Tag: llvmorg-13-init~14116 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6d242a73264ef1e3e128547f00e0fe2d20d3ada0;p=platform%2Fupstream%2Fllvm.git Revert "[DWARFYAML] Add support for referencing different abbrev tables." This reverts commit f7ff0ace96db9164dcde232c36cab6519ea4fce8. This change is causing build failure. http://lab.llvm.org:8011/builders/clang-cmake-armv7-global-isel/builds/10400 --- diff --git a/llvm/include/llvm/ObjectYAML/DWARFYAML.h b/llvm/include/llvm/ObjectYAML/DWARFYAML.h index 005936d..a37cfd8 100644 --- a/llvm/include/llvm/ObjectYAML/DWARFYAML.h +++ b/llvm/include/llvm/ObjectYAML/DWARFYAML.h @@ -21,7 +21,6 @@ #include "llvm/ObjectYAML/YAML.h" #include "llvm/Support/YAMLTraits.h" #include -#include #include namespace llvm { @@ -41,7 +40,6 @@ struct Abbrev { }; struct AbbrevTable { - Optional ID; std::vector Table; }; @@ -112,7 +110,6 @@ struct Unit { uint16_t Version; Optional AddrSize; llvm::dwarf::UnitType Type; // Added in DWARF 5 - Optional AbbrevTableID; yaml::Hex64 AbbrOffset; std::vector Entries; }; @@ -231,10 +228,6 @@ struct Data { bool isEmpty() const; SetVector getNonEmptySectionNames() const; - Expected getAbbrevTableIndexByID(uint64_t ID) const; - -private: - mutable std::unordered_map AbbrevTableID2Index; }; } // end namespace DWARFYAML diff --git a/llvm/lib/ObjectYAML/DWARFEmitter.cpp b/llvm/lib/ObjectYAML/DWARFEmitter.cpp index c932337..682969a 100644 --- a/llvm/lib/ObjectYAML/DWARFEmitter.cpp +++ b/llvm/lib/ObjectYAML/DWARFEmitter.cpp @@ -246,8 +246,7 @@ Error DWARFYAML::emitDebugGNUPubtypes(raw_ostream &OS, const Data &DI) { /*IsGNUStyle=*/true); } -static Expected writeDIE(const DWARFYAML::Data &DI, uint64_t CUIndex, - uint64_t AbbrevTableID, +static Expected writeDIE(ArrayRef AbbrevTable, const dwarf::FormParams &Params, const DWARFYAML::Entry &Entry, raw_ostream &OS, bool IsLittleEndian) { @@ -257,15 +256,12 @@ static Expected writeDIE(const DWARFYAML::Data &DI, uint64_t CUIndex, if (AbbrCode == 0 || Entry.Values.empty()) return OS.tell() - EntryBegin; - Expected AbbrevTableIndexOrErr = - DI.getAbbrevTableIndexByID(AbbrevTableID); - if (!AbbrevTableIndexOrErr) - return createStringError(errc::invalid_argument, - toString(AbbrevTableIndexOrErr.takeError()) + - " for compilation unit with index " + - utostr(CUIndex)); - ArrayRef AbbrevDecls( - DI.DebugAbbrev[*AbbrevTableIndexOrErr].Table); + if (AbbrevTable.empty()) + return createStringError( + errc::invalid_argument, + "non-empty compilation unit should have an associated abbrev table"); + + ArrayRef AbbrevDecls(AbbrevTable[0].Table); if (AbbrCode > AbbrevDecls.size()) return createStringError( @@ -388,8 +384,7 @@ static Expected writeDIE(const DWARFYAML::Data &DI, uint64_t CUIndex, } Error DWARFYAML::emitDebugInfo(raw_ostream &OS, const DWARFYAML::Data &DI) { - for (uint64_t I = 0; I < DI.CompileUnits.size(); ++I) { - const DWARFYAML::Unit &Unit = DI.CompileUnits[I]; + for (const DWARFYAML::Unit &Unit : DI.CompileUnits) { uint8_t AddrSize; if (Unit.AddrSize) AddrSize = *Unit.AddrSize; @@ -407,11 +402,9 @@ Error DWARFYAML::emitDebugInfo(raw_ostream &OS, const DWARFYAML::Data &DI) { std::string EntryBuffer; raw_string_ostream EntryBufferOS(EntryBuffer); - uint64_t AbbrevTableID = Unit.AbbrevTableID.getValueOr(I); for (const DWARFYAML::Entry &Entry : Unit.Entries) { - if (Expected EntryLength = - writeDIE(DI, I, AbbrevTableID, Params, Entry, EntryBufferOS, - DI.IsLittleEndian)) + if (Expected EntryLength = writeDIE( + DI.DebugAbbrev, Params, Entry, EntryBufferOS, DI.IsLittleEndian)) Length += *EntryLength; else return EntryLength.takeError(); diff --git a/llvm/lib/ObjectYAML/DWARFYAML.cpp b/llvm/lib/ObjectYAML/DWARFYAML.cpp index e1ebdfa..5c4fd53 100644 --- a/llvm/lib/ObjectYAML/DWARFYAML.cpp +++ b/llvm/lib/ObjectYAML/DWARFYAML.cpp @@ -13,8 +13,6 @@ #include "llvm/ObjectYAML/DWARFYAML.h" #include "llvm/BinaryFormat/Dwarf.h" -#include "llvm/Support/Errc.h" -#include "llvm/Support/Error.h" namespace llvm { @@ -55,31 +53,6 @@ SetVector DWARFYAML::Data::getNonEmptySectionNames() const { return SecNames; } -Expected DWARFYAML::Data::getAbbrevTableIndexByID(uint64_t ID) const { - if (AbbrevTableID2Index.empty()) { - for (auto &AbbrevTable : enumerate(DebugAbbrev)) { - // If the abbrev table's ID isn't specified, we use the index as its ID. - uint64_t AbbrevTableID = - AbbrevTable.value().ID.getValueOr(AbbrevTable.index()); - auto It = - AbbrevTableID2Index.insert({AbbrevTableID, AbbrevTable.index()}); - if (!It.second) - return createStringError( - errc::invalid_argument, - "the ID (%" PRIu64 ") of abbrev table with index %" PRIu64 - " has been used by abbrev table with index %" PRIu64, - AbbrevTableID, AbbrevTable.index(), It.first->second); - } - } - - auto It = AbbrevTableID2Index.find(ID); - if (It == AbbrevTableID2Index.end()) - return createStringError(errc::invalid_argument, - "cannot find abbrev table whose ID is %" PRIu64, - ID); - return It->second; -} - namespace yaml { void MappingTraits::mapping(IO &IO, DWARFYAML::Data &DWARF) { @@ -107,7 +80,6 @@ void MappingTraits::mapping(IO &IO, DWARFYAML::Data &DWARF) { void MappingTraits::mapping( IO &IO, DWARFYAML::AbbrevTable &AbbrevTable) { - IO.mapOptional("ID", AbbrevTable.ID); IO.mapOptional("Table", AbbrevTable.Table); } @@ -181,7 +153,6 @@ void MappingTraits::mapping(IO &IO, DWARFYAML::Unit &Unit) { IO.mapRequired("Version", Unit.Version); if (Unit.Version >= 5) IO.mapRequired("UnitType", Unit.Type); - IO.mapOptional("AbbrevTableID", Unit.AbbrevTableID); IO.mapRequired("AbbrOffset", Unit.AbbrOffset); IO.mapOptional("AddrSize", Unit.AddrSize); IO.mapOptional("Entries", Unit.Entries); diff --git a/llvm/lib/ObjectYAML/ELFEmitter.cpp b/llvm/lib/ObjectYAML/ELFEmitter.cpp index d9774c2..b1adf03 100644 --- a/llvm/lib/ObjectYAML/ELFEmitter.cpp +++ b/llvm/lib/ObjectYAML/ELFEmitter.cpp @@ -944,7 +944,7 @@ static bool shouldEmitDWARF(DWARFYAML::Data &DWARF, StringRef Name) { template Expected emitDWARF(typename ELFT::Shdr &SHeader, StringRef Name, - DWARFYAML::Data &DWARF, + const DWARFYAML::Data &DWARF, ContiguousBlobAccumulator &CBA) { // We are unable to predict the size of debug data, so we request to write 0 // bytes. This should always return us an output stream unless CBA is already diff --git a/llvm/test/ObjectYAML/MachO/DWARF-debug_abbrev.yaml b/llvm/test/ObjectYAML/MachO/DWARF-debug_abbrev.yaml index 91af7bd..607d6eb 100644 --- a/llvm/test/ObjectYAML/MachO/DWARF-debug_abbrev.yaml +++ b/llvm/test/ObjectYAML/MachO/DWARF-debug_abbrev.yaml @@ -1,7 +1,4 @@ -## a) Test that yaml2obj is able to emit the __debug_abbrev section and obj2yaml is -## able to convert it back. - -# RUN: yaml2obj --docnum=1 %s | obj2yaml | FileCheck %s +# RUN: yaml2obj %s | obj2yaml | FileCheck %s --- !mach-o FileHeader: @@ -423,69 +420,3 @@ DWARF: #CHECK: Attributes: #CHECK: - Attribute: DW_AT_type #CHECK: Form: DW_FORM_ref4 - -## b) Test that yaml2obj emits an error message when there are non-empty compilation -## units and multiple abbrev tables are assigned the same ID. - -# RUN: not yaml2obj --docnum=2 %s 2>&1 | FileCheck %s --check-prefix=ID-COLLISION - -# ID-COLLISION: yaml2obj: error: the ID (1) of abbrev table with index 1 has been used by abbrev table with index 0 - ---- !mach-o -FileHeader: - magic: 0xFEEDFACF - cputype: 0x01000007 - cpusubtype: 0x00000003 - filetype: 0x0000000A - ncmds: 1 - sizeofcmds: 232 - flags: 0x00000000 - reserved: 0x00000000 -LoadCommands: - - cmd: LC_SEGMENT_64 - cmdsize: 232 - segname: __DWARF - vmaddr: 0x00 - vmsize: 0x00 - fileoff: 0x00 - filesize: 0x00 - maxprot: 0 - initprot: 0 - nsects: 2 - flags: 0 - Sections: - - sectname: __debug_abbrev - segname: __DWARF - addr: 0x00 - size: 24 - offset: 528 - align: 0 - reloff: 0x00000000 - nreloc: 0 - flags: 0x00000000 - reserved1: 0x00000000 - reserved2: 0x00000000 - reserved3: 0x00000000 - - sectname: __debug_info - segname: __DWARF - addr: 0x00 - size: 64 - offset: 1070 - align: 0 - reloff: 0x00000000 - nreloc: 0 - flags: 0x00000000 - reserved1: 0x00000000 - reserved2: 0x00000000 - reserved3: 0x00000000 -DWARF: - debug_abbrev: - - ID: 1 - - ID: 1 - debug_info: - - Version: 4 - AbbrOffset: 0x00 - Entries: - - AbbrCode: 1 - Values: - - Value: 0x1234 diff --git a/llvm/test/ObjectYAML/MachO/DWARF-debug_info.yaml b/llvm/test/ObjectYAML/MachO/DWARF-debug_info.yaml index 7683da7..46bf522 100644 --- a/llvm/test/ObjectYAML/MachO/DWARF-debug_info.yaml +++ b/llvm/test/ObjectYAML/MachO/DWARF-debug_info.yaml @@ -514,7 +514,6 @@ DWARF: # DWARF32: debug_info: # DWARF32-NEXT: - Length: 0x0000000000000075 # DWARF32-NEXT: Version: 4 -# DWARF32-NEXT: AbbrevTableID: 0 # DWARF32-NEXT: AbbrOffset: 0 # DWARF32-NEXT: AddrSize: 8 # DWARF32-NEXT: Entries: @@ -584,7 +583,6 @@ DWARF: # DWARF32-YAML: debug_info: # DWARF32-YAML-NEXT: - Length: 0x000000000000000C # DWARF32-YAML-NEXT: Version: 4 -# DWARF32-YAML-NEXT: AbbrevTableID: 0 # DWARF32-YAML-NEXT: AbbrOffset: 0 # DWARF32-YAML-NEXT: AddrSize: 8 # DWARF32-YAML-NEXT: Entries: @@ -668,234 +666,9 @@ DWARF: # DWARF64-YAML-NEXT: - Format: DWARF64 # DWARF64-YAML-NEXT: Length: 0x000000000000000C # DWARF64-YAML-NEXT: Version: 4 -# DWARF64-YAML-NEXT: AbbrevTableID: 0 # DWARF64-YAML-NEXT: AbbrOffset: 0 # DWARF64-YAML-NEXT: AddrSize: 8 # DWARF64-YAML-NEXT: Entries: # DWARF64-YAML-NEXT: - AbbrCode: 0x00000001 # DWARF64-YAML-NEXT: Values: # DWARF64-YAML-NEXT: - Value: 0x0000000000001234 - -## c) Test that yaml2obj is able to generate compilation units according to the -## associated abbrev table that is referenced by the 'AbbrevTableID' and obj2yaml -## is able to convert it back. - -# RUN: yaml2obj --docnum=3 %s | obj2yaml | FileCheck %s --check-prefix=MULTI-TABLES - -# MULTI-TABLES: DWARF: -# MULTI-TABLES-NEXT: debug_abbrev: -# MULTI-TABLES-NEXT: - ID: 0 -# MULTI-TABLES-NEXT: Table: -# MULTI-TABLES-NEXT: - Code: 0x0000000000000001 -# MULTI-TABLES-NEXT: Tag: DW_TAG_compile_unit -# MULTI-TABLES-NEXT: Children: DW_CHILDREN_no -# MULTI-TABLES-NEXT: Attributes: -# MULTI-TABLES-NEXT: - Attribute: DW_AT_low_pc -# MULTI-TABLES-NEXT: Form: DW_FORM_addr -# MULTI-TABLES-NEXT: - ID: 1 -# MULTI-TABLES-NEXT: Table: -# MULTI-TABLES-NEXT: - Code: 0x0000000000000001 -# MULTI-TABLES-NEXT: Tag: DW_TAG_compile_unit -# MULTI-TABLES-NEXT: Children: DW_CHILDREN_no -# MULTI-TABLES-NEXT: Attributes: -# MULTI-TABLES-NEXT: - Attribute: DW_AT_low_pc -# MULTI-TABLES-NEXT: Form: DW_FORM_data4 -# MULTI-TABLES-NEXT: - ID: 2 -# MULTI-TABLES-NEXT: Table: -# MULTI-TABLES-NEXT: - Code: 0x0000000000000001 -# MULTI-TABLES-NEXT: Tag: DW_TAG_compile_unit -# MULTI-TABLES-NEXT: Children: DW_CHILDREN_no -# MULTI-TABLES-NEXT: Attributes: -# MULTI-TABLES-NEXT: - Attribute: DW_AT_low_pc -# MULTI-TABLES-NEXT: Form: DW_FORM_udata -# MULTI-TABLES-NEXT: debug_info: -# MULTI-TABLES-NEXT: - Length: 0x000000000000000C -# MULTI-TABLES-NEXT: Version: 4 -# MULTI-TABLES-NEXT: AbbrevTableID: 1 -# MULTI-TABLES-NEXT: AbbrOffset: 0x0000000000000008 -# MULTI-TABLES-NEXT: AddrSize: 8 -# MULTI-TABLES-NEXT: Entries: -# MULTI-TABLES-NEXT: - AbbrCode: 0x00000001 -# MULTI-TABLES-NEXT: Values: -# MULTI-TABLES-NEXT: - Value: 0x0000000000001234 -# MULTI-TABLES-NEXT: - Length: 0x000000000000000C -# MULTI-TABLES-NEXT: Version: 4 -# MULTI-TABLES-NEXT: AbbrevTableID: 1 -# MULTI-TABLES-NEXT: AbbrOffset: 0x0000000000000008 -# MULTI-TABLES-NEXT: AddrSize: 8 -# MULTI-TABLES-NEXT: Entries: -# MULTI-TABLES-NEXT: - AbbrCode: 0x00000001 -# MULTI-TABLES-NEXT: Values: -# MULTI-TABLES-NEXT: - Value: 0x0000000000004321 -# MULTI-TABLES-NEXT: - Length: 0x0000000000000010 -# MULTI-TABLES-NEXT: Version: 4 -# MULTI-TABLES-NEXT: AbbrevTableID: 0 -# MULTI-TABLES-NEXT: AbbrOffset: 0x0000000000000000 -# MULTI-TABLES-NEXT: AddrSize: 8 -# MULTI-TABLES-NEXT: Entries: -# MULTI-TABLES-NEXT: - AbbrCode: 0x00000001 -# MULTI-TABLES-NEXT: Values: -# MULTI-TABLES-NEXT: - Value: 0x0000000000005678 -# MULTI-TABLES-NEXT: - Length: 0x000000000000000B -# MULTI-TABLES-NEXT: Version: 4 -# MULTI-TABLES-NEXT: AbbrevTableID: 2 -# MULTI-TABLES-NEXT: AbbrOffset: 0x0000000000000010 -# MULTI-TABLES-NEXT: AddrSize: 8 -# MULTI-TABLES-NEXT: Entries: -# MULTI-TABLES-NEXT: - AbbrCode: 0x00000001 -# MULTI-TABLES-NEXT: Values: -# MULTI-TABLES-NEXT: - Value: 0x0000000000008765 -# MULTI-TABLES-NEXT: ... - ---- !mach-o -FileHeader: - magic: 0xFEEDFACF - cputype: 0x01000007 - cpusubtype: 0x00000003 - filetype: 0x0000000A - ncmds: 1 - sizeofcmds: 232 - flags: 0x00000000 - reserved: 0x00000000 -LoadCommands: - - cmd: LC_SEGMENT_64 - cmdsize: 232 - segname: __DWARF - vmaddr: 0x00 - vmsize: 0x00 - fileoff: 0x00 - filesize: 0x00 - maxprot: 0 - initprot: 0 - nsects: 2 - flags: 0 - Sections: - - sectname: __debug_abbrev - segname: __DWARF - addr: 0x00 - size: 24 - offset: 528 - align: 0 - reloff: 0x00000000 - nreloc: 0 - flags: 0x00000000 - reserved1: 0x00000000 - reserved2: 0x00000000 - reserved3: 0x00000000 - - sectname: __debug_info - segname: __DWARF - addr: 0x00 - size: 67 - offset: 1070 - align: 0 - reloff: 0x00000000 - nreloc: 0 - flags: 0x00000000 - reserved1: 0x00000000 - reserved2: 0x00000000 - reserved3: 0x00000000 -DWARF: - debug_abbrev: - - Table: - - Code: 1 - Tag: DW_TAG_compile_unit - Children: DW_CHILDREN_no - Attributes: - - Attribute: DW_AT_low_pc - Form: DW_FORM_addr - - ID: 2 - Table: - - Code: 1 - Tag: DW_TAG_compile_unit - Children: DW_CHILDREN_no - Attributes: - - Attribute: DW_AT_low_pc - Form: DW_FORM_data4 - - ID: 1 - Table: - - Code: 1 - Tag: DW_TAG_compile_unit - Children: DW_CHILDREN_no - Attributes: - - Attribute: DW_AT_low_pc - Form: DW_FORM_udata - debug_info: - - Version: 4 - AbbrevTableID: 2 - AbbrOffset: 8 - Entries: - - AbbrCode: 1 - Values: - - Value: 0x1234 - - Version: 4 - AbbrevTableID: 2 - AbbrOffset: 8 - Entries: - - AbbrCode: 1 - Values: - - Value: 0x4321 - - Version: 4 - AbbrevTableID: 0 - AbbrOffset: 0 - Entries: - - AbbrCode: 1 - Values: - - Value: 0x5678 - - Version: 4 - AbbrevTableID: 1 - AbbrOffset: 16 - Entries: - - AbbrCode: 1 - Values: - - Value: 0x8765 - -## d) Test that yaml2obj emits an error message when a compilation unit doesn't have -## an associated abbrev table. - -# RUN: not yaml2obj --docnum=4 %s 2>&1 | FileCheck %s --check-prefix=MISSING-ABBREV - -# MISSING-ABBREV: yaml2obj: error: cannot find abbrev table whose ID is 0 - ---- !mach-o -FileHeader: - magic: 0xFEEDFACF - cputype: 0x01000007 - cpusubtype: 0x00000003 - filetype: 0x0000000A - ncmds: 1 - sizeofcmds: 232 - flags: 0x00000000 - reserved: 0x00000000 -LoadCommands: - - cmd: LC_SEGMENT_64 - cmdsize: 152 - segname: __DWARF - vmaddr: 0x00 - vmsize: 0x00 - fileoff: 0x00 - filesize: 0x00 - maxprot: 0 - initprot: 0 - nsects: 2 - flags: 0 - Sections: - - sectname: __debug_info - segname: __DWARF - addr: 0x00 - size: 64 - offset: 1070 - align: 0 - reloff: 0x00000000 - nreloc: 0 - flags: 0x00000000 - reserved1: 0x00000000 - reserved2: 0x00000000 - reserved3: 0x00000000 -DWARF: - debug_info: - - Version: 4 - AbbrOffset: 0x00 - Entries: - - AbbrCode: 1 - Values: - - Value: 0x1234 diff --git a/llvm/test/ObjectYAML/MachO/DWARF5-debug_info.yaml b/llvm/test/ObjectYAML/MachO/DWARF5-debug_info.yaml index d016b8c..d63be60 100644 --- a/llvm/test/ObjectYAML/MachO/DWARF5-debug_info.yaml +++ b/llvm/test/ObjectYAML/MachO/DWARF5-debug_info.yaml @@ -515,7 +515,6 @@ DWARF: # DWARF32-NEXT: - Length: 0x0000000000000076 # DWARF32-NEXT: Version: 5 # DWARF32-NEXT: UnitType: DW_UT_compile -# DWARF32-NEXT: AbbrevTableID: 0 # DWARF32-NEXT: AbbrOffset: 0 # DWARF32-NEXT: AddrSize: 8 # DWARF32-NEXT: Entries: @@ -586,7 +585,6 @@ DWARF: # DWARF32-YAML-NEXT: - Length: 0x000000000000000C # DWARF32-YAML-NEXT: Version: 5 # DWARF32-YAML-NEXT: UnitType: DW_UT_compile -# DWARF32-YAML-NEXT: AbbrevTableID: 0 # DWARF32-YAML-NEXT: AbbrOffset: 0x0000000000000000 # DWARF32-YAML-NEXT: AddrSize: 8 # DWARF32-YAML-NEXT: Entries: @@ -672,7 +670,6 @@ DWARF: # DWARF64-YAML-NEXT: Length: 0x0000000000000014 # DWARF64-YAML-NEXT: Version: 5 # DWARF64-YAML-NEXT: UnitType: DW_UT_compile -# DWARF64-YAML-NEXT: AbbrevTableID: 0 # DWARF64-YAML-NEXT: AbbrOffset: 0x0000000000000000 # DWARF64-YAML-NEXT: AddrSize: 8 # DWARF64-YAML-NEXT: Entries: diff --git a/llvm/test/tools/yaml2obj/ELF/DWARF/debug-abbrev.yaml b/llvm/test/tools/yaml2obj/ELF/DWARF/debug-abbrev.yaml index d199ac2..82786db 100644 --- a/llvm/test/tools/yaml2obj/ELF/DWARF/debug-abbrev.yaml +++ b/llvm/test/tools/yaml2obj/ELF/DWARF/debug-abbrev.yaml @@ -306,28 +306,3 @@ DWARF: - Tag: DW_TAG_subprogram Children: DW_CHILDREN_no Attributes: [] - -## i) Test that yaml2obj emits an error message when there are non-empty compilation units -## and multiple abbrev tables are assigned the same ID. - -## RUN: not yaml2obj --docnum=9 %s 2>&1 | FileCheck %s --check-prefix=ID-COLLISION - -# ID-COLLISION: yaml2obj: error: the ID (1) of abbrev table with index 1 has been used by abbrev table with index 0 - ---- !ELF -FileHeader: - Class: ELFCLASS64 - Data: ELFDATA2LSB - Type: ET_EXEC - Machine: EM_X86_64 -DWARF: - debug_abbrev: - - ID: 1 - - ID: 1 - debug_info: - - Version: 4 - AbbrOffset: 0x00 - Entries: - - AbbrCode: 1 - Values: - - Value: 0x1234 diff --git a/llvm/test/tools/yaml2obj/ELF/DWARF/debug-info.yaml b/llvm/test/tools/yaml2obj/ELF/DWARF/debug-info.yaml index 80bb064..d3698f1 100644 --- a/llvm/test/tools/yaml2obj/ELF/DWARF/debug-info.yaml +++ b/llvm/test/tools/yaml2obj/ELF/DWARF/debug-info.yaml @@ -206,12 +206,11 @@ DWARF: - Attribute: 0x01 Form: DW_FORM_addrx4 ## 0x2c debug_info: - - Length: 0x1234 - Version: 5 - UnitType: DW_UT_type - AbbrevTableID: 0 - AbbrOffset: 0x1234 - AddrSize: 4 + - Length: 0x1234 + Version: 5 + UnitType: DW_UT_type + AbbrOffset: 0x1234 + AddrSize: 4 Entries: - AbbrCode: 1 Values: @@ -272,7 +271,6 @@ DWARF: Version: 5 ## Test another unit type. UnitType: DW_UT_compile - AbbrevTableID: 0 AbbrOffset: 0x1234 AddrSize: 4 Entries: @@ -281,7 +279,6 @@ DWARF: - Length: 0x5678 ## Test DWARFv4 Version: 4 - AbbrevTableID: 0 AbbrOffset: 0x5678 AddrSize: 4 Entries: @@ -889,7 +886,7 @@ DWARF: ## RUN: not yaml2obj --docnum=16 %s 2>&1 | FileCheck %s --check-prefix=NO-ABBREV -# NO-ABBREV: yaml2obj: error: cannot find abbrev table whose ID is 0 for compilation unit with index 0 +# NO-ABBREV: yaml2obj: error: non-empty compilation unit should have an associated abbrev table --- !ELF FileHeader: @@ -905,102 +902,3 @@ DWARF: - AbbrCode: 1 Values: - Value: 0x1234 - -## o) Test that yaml2obj is able to generate compilation units according to the -## associated abbrev table that is referenced by the 'AbbrevTableID'. - -# RUN: yaml2obj --docnum=17 %s -o %t17.o -# RUN: llvm-readelf --hex-dump=.debug_info %t17.o | FileCheck %s --check-prefix=MULTI-TABLES - -# MULTI-TABLES: Hex dump of section '.debug_info': -# MULTI-TABLES-NEXT: 0x00000000 0c000000 04000800 00000801 34120000 ............4... -## ^------- unit_length (4-byte) -## ^--- version (2-byte) -## ^-------- debug_abbrev_offset (4-byte) -## ^- address_size (1-byte) -## ^- abbrev_code (ULEB128) 0x01 -## ^------- Form: DW_FORM_data4 (4-byte) 0x1234 -# MULTI-TABLES-NEXT: 0x00000010 0c000000 04000800 00000801 21430000 ............!C.. -## ^------- unit_length (4-byte) -## ^--- version (2-byte) -## ^-------- debug_abbrev_offset (4-byte) -## ^- address_size (1-byte) -## ^- abbrev_code (ULEB128) 0x01 -## ^------- Form: DW_FORM_data4 (4-byte) 0x4321 -# MULTI-TABLES-NEXT: 0x00000020 10000000 04000000 00000801 78560000 ............xV.. -## ^------- unit_length (4-byte) -## ^--- version (2-byte) -## ^-------- debug_abbrev_offset (4-byte) -## ^- address_size (1-byte) -## ^- abbrev_code (ULEB128) 0x01 -## ^------- Form: DW_FORM_addr (8-byte) 0x5678 -# MULTI-TABLES-NEXT: 0x00000030 00000000 0b000000 04001000 00000801 ................ -## -------- -## ^------- unit_length (4-byte) -## ^--- version (2-byte) -## ^-------- debug_abbrev_offset (4-byte) -## ^- address_size (1-byte) -## ^- abbrev_code (ULEB128) 0x01 -# MULTI-TABLES-NEXT: 0x00000040 e58e02 ... -## ^----- Form: DW_FORM_udata (ULEB128) 0x8765 - ---- !ELF -FileHeader: - Class: ELFCLASS64 - Data: ELFDATA2LSB - Type: ET_EXEC - Machine: EM_X86_64 -DWARF: - debug_abbrev: - - Table: - - Code: 1 - Tag: DW_TAG_compile_unit - Children: DW_CHILDREN_no - Attributes: - - Attribute: DW_AT_low_pc - Form: DW_FORM_addr - - ID: 2 - Table: - - Code: 1 - Tag: DW_TAG_compile_unit - Children: DW_CHILDREN_no - Attributes: - - Attribute: DW_AT_low_pc - Form: DW_FORM_data4 - - ID: 1 - Table: - - Code: 1 - Tag: DW_TAG_compile_unit - Children: DW_CHILDREN_no - Attributes: - - Attribute: DW_AT_low_pc - Form: DW_FORM_udata - debug_info: - - Version: 4 - AbbrevTableID: 2 - AbbrOffset: 8 - Entries: - - AbbrCode: 1 - Values: - - Value: 0x1234 - - Version: 4 - AbbrevTableID: 2 - AbbrOffset: 8 - Entries: - - AbbrCode: 1 - Values: - - Value: 0x4321 - - Version: 4 - AbbrevTableID: 0 - AbbrOffset: 0 - Entries: - - AbbrCode: 1 - Values: - - Value: 0x5678 - - Version: 4 - AbbrevTableID: 1 - AbbrOffset: 16 - Entries: - - AbbrCode: 1 - Values: - - Value: 0x8765 diff --git a/llvm/tools/obj2yaml/dwarf2yaml.cpp b/llvm/tools/obj2yaml/dwarf2yaml.cpp index 0f9794f..6acce09 100644 --- a/llvm/tools/obj2yaml/dwarf2yaml.cpp +++ b/llvm/tools/obj2yaml/dwarf2yaml.cpp @@ -23,7 +23,6 @@ using namespace llvm; void dumpDebugAbbrev(DWARFContext &DCtx, DWARFYAML::Data &Y) { auto AbbrevSetPtr = DCtx.getDebugAbbrev(); if (AbbrevSetPtr) { - uint64_t AbbrevTableID = 0; for (auto AbbrvDeclSet : *AbbrevSetPtr) { Y.DebugAbbrev.emplace_back(); for (auto AbbrvDecl : AbbrvDeclSet.second) { @@ -40,7 +39,6 @@ void dumpDebugAbbrev(DWARFContext &DCtx, DWARFYAML::Data &Y) { AttAbrv.Value = Attribute.getImplicitConstValue(); Abbrv.Attributes.push_back(AttAbrv); } - Y.DebugAbbrev.back().ID = AbbrevTableID++; Y.DebugAbbrev.back().Table.push_back(Abbrv); } } @@ -174,14 +172,6 @@ void dumpDebugInfo(DWARFContext &DCtx, DWARFYAML::Data &Y) { NewUnit.Version = CU->getVersion(); if (NewUnit.Version >= 5) NewUnit.Type = (dwarf::UnitType)CU->getUnitType(); - const DWARFDebugAbbrev *DebugAbbrev = DCtx.getDebugAbbrev(); - NewUnit.AbbrevTableID = std::distance( - DebugAbbrev->begin(), - std::find_if( - DebugAbbrev->begin(), DebugAbbrev->end(), - [&](const std::pair &P) { - return P.first == CU->getAbbreviations()->getOffset(); - })); NewUnit.AbbrOffset = CU->getAbbreviations()->getOffset(); NewUnit.AddrSize = CU->getAddressByteSize(); for (auto DIE : CU->dies()) { diff --git a/llvm/unittests/DebugInfo/DWARF/DWARFDebugInfoTest.cpp b/llvm/unittests/DebugInfo/DWARF/DWARFDebugInfoTest.cpp index c08a0e1..f59b18f 100644 --- a/llvm/unittests/DebugInfo/DWARF/DWARFDebugInfoTest.cpp +++ b/llvm/unittests/DebugInfo/DWARF/DWARFDebugInfoTest.cpp @@ -2487,7 +2487,6 @@ TEST(DWARFDebugInfo, TestDwarfVerifyCUDontShareLineTable) { - Value: 0x0000000000000000 - Length: 16 Version: 4 - AbbrevTableID: 0 AbbrOffset: 0 AddrSize: 8 Entries: