diff --git a/llvm/lib/Object/XCOFFObjectFile.cpp b/llvm/lib/Object/XCOFFObjectFile.cpp --- a/llvm/lib/Object/XCOFFObjectFile.cpp +++ b/llvm/lib/Object/XCOFFObjectFile.cpp @@ -43,6 +43,10 @@ Offset); } +static Error createError(const Twine &Err) { + return make_error(Err, object_error::parse_failed); +} + template static const T *viewAs(uintptr_t in) { return reinterpret_cast(in); } @@ -190,8 +194,9 @@ if (StringTable.Data != nullptr && StringTable.Size > Offset) return (StringTable.Data + Offset); - return make_error("Bad offset for string table entry", - object_error::parse_failed); + return createError("entry with offset 0x" + Twine::utohexstr(Offset) + + " in a string table with size 0x" + + Twine::utohexstr(StringTable.Size) + " is invalid"); } StringRef XCOFFObjectFile::getStringTable() const { @@ -297,7 +302,10 @@ uint64_t SectionSize = getSectionSize(Sec); if (Error E = Binary::checkOffset( Data, reinterpret_cast(ContentStart), SectionSize)) - return std::move(E); + return createError( + toString(std::move(E)) + ": section data with offset 0x" + + Twine::utohexstr(OffsetToRaw) + " and size 0x" + + Twine::utohexstr(SectionSize) + " goes past the end of the file"); return makeArrayRef(ContentStart,SectionSize); } @@ -336,7 +344,12 @@ reinterpret_cast(base() + OffsetToLoaderSection); if (Error E = Binary::checkOffset(Data, LoderSectionStart, SizeOfLoaderSection)) - return std::move(E); + return createError(toString(std::move(E)) + + ": loader section with offset 0x" + + Twine::utohexstr(OffsetToLoaderSection) + + " and size 0x" + Twine::utohexstr(SizeOfLoaderSection) + + " goes past the end of the file"); + return LoderSectionStart; } @@ -712,7 +725,9 @@ const uint32_t NumberOfSymTableEntries = getNumberOfSymbolTableEntries(); if (Index >= NumberOfSymTableEntries) - return errorCodeToError(object_error::invalid_symbol_index); + return createError("symbol index " + Twine(Index) + + " exceeds symbol count " + + Twine(NumberOfSymTableEntries)); DataRefImpl SymDRI; SymDRI.p = getSymbolEntryAddressByIndex(Index); @@ -791,8 +806,12 @@ auto RelocationOrErr = getObject(Data, reinterpret_cast(RelocAddr), NumRelocEntries * sizeof(Reloc)); - if (Error E = RelocationOrErr.takeError()) - return std::move(E); + if (!RelocationOrErr) + return createError( + toString(RelocationOrErr.takeError()) + ": relocations with offset 0x" + + Twine::utohexstr(Sec.FileOffsetToRelocationInfo) + " and size 0x" + + Twine::utohexstr(NumRelocEntries * sizeof(Reloc)) + + " go past the end of the file"); const Reloc *StartReloc = RelocationOrErr.get(); @@ -819,8 +838,12 @@ auto StringTableOrErr = getObject(Obj->Data, Obj->base() + Offset, Size); - if (Error E = StringTableOrErr.takeError()) - return std::move(E); + if (!StringTableOrErr) + return createError(toString(StringTableOrErr.takeError()) + + ": string table with offset 0x" + + Twine::utohexstr(Offset) + " and size 0x" + + Twine::utohexstr(Size) + + " goes past the end of the file"); const char *StringTablePtr = StringTableOrErr.get(); if (StringTablePtr[Size - 1] != '\0') @@ -858,14 +881,21 @@ Data, reinterpret_cast(LoaderSectionAddr + OffsetToImportFileTable), LengthOfImportFileTable); - if (Error E = ImportTableOrErr.takeError()) - return std::move(E); + if (!ImportTableOrErr) + return createError( + toString(ImportTableOrErr.takeError()) + + ": import file name table with offset 0x" + + Twine::utohexstr(LoaderSectionAddr + OffsetToImportFileTable) + + " and size 0x" + Twine::utohexstr(LengthOfImportFileTable) + + " goes past the end of the file"); const char *ImportTablePtr = ImportTableOrErr.get(); if (ImportTablePtr[LengthOfImportFileTable - 1] != '\0') - return createStringError( - object_error::parse_failed, - "the import file table must end with a null terminator"); + return createError( + ": import file name table with offset 0x" + + Twine::utohexstr(LoaderSectionAddr + OffsetToImportFileTable) + + " and size 0x" + Twine::utohexstr(LengthOfImportFileTable) + + " must end with a null terminator"); return StringRef(ImportTablePtr, LengthOfImportFileTable); } @@ -894,11 +924,17 @@ // Parse the section header table if it is present. if (Obj->getNumberOfSections()) { - auto SecHeadersOrErr = getObject(Data, Base + CurOffset, - Obj->getNumberOfSections() * - Obj->getSectionHeaderSize()); - if (Error E = SecHeadersOrErr.takeError()) - return std::move(E); + uint64_t SectionHeadersSize = + Obj->getNumberOfSections() * Obj->getSectionHeaderSize(); + auto SecHeadersOrErr = + getObject(Data, Base + CurOffset, SectionHeadersSize); + if (!SecHeadersOrErr) + return createError(toString(SecHeadersOrErr.takeError()) + + ": section headers with offset 0x" + + Twine::utohexstr(CurOffset) + " and size 0x" + + Twine::utohexstr(SectionHeadersSize) + + " go past the end of the file"); + Obj->SectionHeaderTable = SecHeadersOrErr.get(); } @@ -917,8 +953,12 @@ NumberOfSymbolTableEntries; auto SymTableOrErr = getObject(Data, Base + CurOffset, SymbolTableSize); - if (Error E = SymTableOrErr.takeError()) - return std::move(E); + if (!SymTableOrErr) + return createError( + toString(SymTableOrErr.takeError()) + ": symbol table with offset 0x" + + Twine::utohexstr(CurOffset) + " and size 0x" + + Twine::utohexstr(SymbolTableSize) + " goes past the end of the file"); + Obj->SymbolTblPtr = SymTableOrErr.get(); CurOffset += SymbolTableSize; @@ -988,10 +1028,10 @@ if (auto Err = NameOrErr.takeError()) return std::move(Err); + uint32_t SymbolIdx = OwningObjectPtr->getSymbolIndex(getEntryAddress()); if (!NumberOfAuxEntries) { - return createStringError(object_error::parse_failed, - "csect symbol \"" + *NameOrErr + - "\" contains no auxiliary entry"); + return createError("csect symbol \"" + *NameOrErr + "\" with index " + + Twine(SymbolIdx) + " contains no auxiliary entry"); } if (!OwningObjectPtr->is64Bit()) { @@ -1016,9 +1056,9 @@ } } - return createStringError( - object_error::parse_failed, - "a csect auxiliary entry is not found for symbol \"" + *NameOrErr + "\""); + return createError( + "a csect auxiliary entry has not been found for symbol \"" + *NameOrErr + + "\" with index " + Twine(SymbolIdx)); } Expected XCOFFSymbolRef::getName() const { diff --git a/llvm/test/tools/llvm-objdump/XCOFF/section-headers.test b/llvm/test/tools/llvm-objdump/XCOFF/section-headers.test --- a/llvm/test/tools/llvm-objdump/XCOFF/section-headers.test +++ b/llvm/test/tools/llvm-objdump/XCOFF/section-headers.test @@ -73,7 +73,7 @@ # RUN: not llvm-objdump --section-headers %t-truncate.o 2>&1 \ # RUN: | FileCheck --check-prefix=ERROR %s -# ERROR: The end of the file was unexpectedly encountered +# ERROR: The end of the file was unexpectedly encountered: section headers with offset 0x14 and size 0x28 go past the end of the file --- !XCOFF FileHeader: diff --git a/llvm/test/tools/llvm-readobj/XCOFF/relocations-invalid.test b/llvm/test/tools/llvm-readobj/XCOFF/relocations-invalid.test --- a/llvm/test/tools/llvm-readobj/XCOFF/relocations-invalid.test +++ b/llvm/test/tools/llvm-readobj/XCOFF/relocations-invalid.test @@ -5,7 +5,7 @@ # RUN: FileCheck %s -DFILE=%t1 --check-prefix=INVALID-REL # INVALID-REL: Relocations [ -# INVALID-REL-NEXT: warning: '[[FILE]]': The end of the file was unexpectedly encountered +# INVALID-REL-NEXT: warning: '[[FILE]]': The end of the file was unexpectedly encountered: relocations with offset 0x222 and size 0x0 go past the end of the file # INVALID-REL-NEXT: ] --- !XCOFF @@ -23,7 +23,7 @@ # INVALID-SYM: Relocations [ # INVALID-SYM-NEXT: Section (index: 1) .text { -# INVALID-SYM-NEXT: warning: '[[FILE]]': Invalid symbol index +# INVALID-SYM-NEXT: warning: '[[FILE]]': symbol index 33 exceeds symbol count 0 # INVALID-SYM-NEXT: } # INVALID-SYM-NEXT: ] diff --git a/llvm/test/tools/obj2yaml/XCOFF/invalid-section.yaml b/llvm/test/tools/obj2yaml/XCOFF/invalid-section.yaml --- a/llvm/test/tools/obj2yaml/XCOFF/invalid-section.yaml +++ b/llvm/test/tools/obj2yaml/XCOFF/invalid-section.yaml @@ -5,7 +5,7 @@ # RUN: yaml2obj %s --docnum=1 -o %t1 # RUN: not obj2yaml %t1 2>&1 | FileCheck %s -DFILE=%t1 --check-prefix=ERROR1 -# ERROR1: The end of the file was unexpectedly encountered +# ERROR1: The end of the file was unexpectedly encountered: section data with offset 0x70 and size 0x4 goes past the end of the file --- !XCOFF FileHeader: @@ -18,7 +18,7 @@ # RUN: yaml2obj %s --docnum=2 -o %t2 # RUN: not obj2yaml %t2 2>&1 | FileCheck %s -DFILE=%t2 --check-prefix=ERROR2 -# ERROR2: The end of the file was unexpectedly encountered +# ERROR2: The end of the file was unexpectedly encountered: relocations with offset 0x3c and size 0x1e go past the end of the file --- !XCOFF FileHeader: diff --git a/llvm/test/tools/obj2yaml/XCOFF/invalid-symbol.yaml b/llvm/test/tools/obj2yaml/XCOFF/invalid-symbol.yaml --- a/llvm/test/tools/obj2yaml/XCOFF/invalid-symbol.yaml +++ b/llvm/test/tools/obj2yaml/XCOFF/invalid-symbol.yaml @@ -3,9 +3,9 @@ ## Error1: failed to get the section name for a symbol. # RUN: yaml2obj %s --docnum=1 -o %t1 -# RUN: not obj2yaml %t1 2>&1 | FileCheck %s --check-prefix=ERROR1 +# RUN: not obj2yaml %t1 2>&1 | FileCheck %s -DFILE=%t1 --check-prefix=ERROR1 -# ERROR1: Invalid section index +# ERROR1: Error reading file: [[FILE]]: the section index (2) is invalid --- !XCOFF FileHeader: @@ -17,9 +17,9 @@ ## Error2: failed to get the symbol name. # RUN: yaml2obj %s --docnum=2 -o %t2 -# RUN: not obj2yaml %t2 2>&1 | FileCheck %s --check-prefix=ERROR2 +# RUN: not obj2yaml %t2 2>&1 | FileCheck %s -DFILE=%t2 --check-prefix=ERROR2 -# ERROR2: Invalid data was encountered while parsing the file +# ERROR2: Error reading file: [[FILE]]: entry with offset 0x4 in a string table with size 0x4 is invalid --- !XCOFF FileHeader: diff --git a/llvm/tools/obj2yaml/obj2yaml.h b/llvm/tools/obj2yaml/obj2yaml.h --- a/llvm/tools/obj2yaml/obj2yaml.h +++ b/llvm/tools/obj2yaml/obj2yaml.h @@ -28,8 +28,8 @@ const llvm::object::Binary &Obj); llvm::Error minidump2yaml(llvm::raw_ostream &Out, const llvm::object::MinidumpFile &Obj); -std::error_code xcoff2yaml(llvm::raw_ostream &Out, - const llvm::object::XCOFFObjectFile &Obj); +llvm::Error xcoff2yaml(llvm::raw_ostream &Out, + const llvm::object::XCOFFObjectFile &Obj); std::error_code wasm2yaml(llvm::raw_ostream &Out, const llvm::object::WasmObjectFile &Obj); llvm::Error archive2yaml(llvm::raw_ostream &Out, llvm::MemoryBufferRef Source); diff --git a/llvm/tools/obj2yaml/obj2yaml.cpp b/llvm/tools/obj2yaml/obj2yaml.cpp --- a/llvm/tools/obj2yaml/obj2yaml.cpp +++ b/llvm/tools/obj2yaml/obj2yaml.cpp @@ -23,7 +23,7 @@ return errorCodeToError(coff2yaml(outs(), cast(Obj))); if (Obj.isXCOFF()) - return errorCodeToError(xcoff2yaml(outs(), cast(Obj))); + return xcoff2yaml(outs(), cast(Obj)); if (Obj.isELF()) return elf2yaml(outs(), Obj); diff --git a/llvm/tools/obj2yaml/xcoff2yaml.cpp b/llvm/tools/obj2yaml/xcoff2yaml.cpp --- a/llvm/tools/obj2yaml/xcoff2yaml.cpp +++ b/llvm/tools/obj2yaml/xcoff2yaml.cpp @@ -138,15 +138,14 @@ return Error::success(); } -std::error_code xcoff2yaml(raw_ostream &Out, - const object::XCOFFObjectFile &Obj) { +Error xcoff2yaml(raw_ostream &Out, const object::XCOFFObjectFile &Obj) { XCOFFDumper Dumper(Obj); if (Error E = Dumper.dump()) - return errorToErrorCode(std::move(E)); + return E; yaml::Output Yout(Out); Yout << Dumper.getYAMLObj(); - return std::error_code(); + return Error::success(); } diff --git a/llvm/unittests/Object/XCOFFObjectFileTest.cpp b/llvm/unittests/Object/XCOFFObjectFileTest.cpp --- a/llvm/unittests/Object/XCOFFObjectFileTest.cpp +++ b/llvm/unittests/Object/XCOFFObjectFileTest.cpp @@ -445,7 +445,8 @@ Expected ExpectErr = SymRef.getXCOFFCsectAuxRef(); EXPECT_THAT_ERROR( ExpectErr.takeError(), - FailedWithMessage("csect symbol \".data\" contains no auxiliary entry")); + FailedWithMessage( + "csect symbol \".data\" with index 2 contains no auxiliary entry")); } TEST(XCOFFObjectFileTest, XCOFFGetCsectAuxRef64) { @@ -500,15 +501,16 @@ Expected NotFoundErr = SymRef.getXCOFFCsectAuxRef(); EXPECT_THAT_ERROR( NotFoundErr.takeError(), - FailedWithMessage( - "a csect auxiliary entry is not found for symbol \".data\"")); + FailedWithMessage("a csect auxiliary entry has not been found for symbol " + "\".data\" with index 2")); // Set csect symbol's auxiliary entry count to 0. XCOFF64Binary[149] = 0; Expected ExpectErr = SymRef.getXCOFFCsectAuxRef(); EXPECT_THAT_ERROR( ExpectErr.takeError(), - FailedWithMessage("csect symbol \".data\" contains no auxiliary entry")); + FailedWithMessage( + "csect symbol \".data\" with index 2 contains no auxiliary entry")); } TEST(XCOFFObjectFileTest, XCOFFTracebackTableErrorAtParameterType) {