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Diffstat (limited to 'contrib/llvm/lib/Object/ELFYAML.cpp')
| -rw-r--r-- | contrib/llvm/lib/Object/ELFYAML.cpp | 560 |
1 files changed, 560 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Object/ELFYAML.cpp b/contrib/llvm/lib/Object/ELFYAML.cpp new file mode 100644 index 0000000..7e35fb5 --- /dev/null +++ b/contrib/llvm/lib/Object/ELFYAML.cpp @@ -0,0 +1,560 @@ +//===- ELFYAML.cpp - ELF YAMLIO implementation ----------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file defines classes for handling the YAML representation of ELF. +// +//===----------------------------------------------------------------------===// + +#include "llvm/Object/ELFYAML.h" +#include "llvm/Support/Casting.h" + +namespace llvm { + +ELFYAML::Section::~Section() {} + +namespace yaml { + +void +ScalarEnumerationTraits<ELFYAML::ELF_ET>::enumeration(IO &IO, + ELFYAML::ELF_ET &Value) { +#define ECase(X) IO.enumCase(Value, #X, ELF::X); + ECase(ET_NONE) + ECase(ET_REL) + ECase(ET_EXEC) + ECase(ET_DYN) + ECase(ET_CORE) +#undef ECase +} + +void +ScalarEnumerationTraits<ELFYAML::ELF_EM>::enumeration(IO &IO, + ELFYAML::ELF_EM &Value) { +#define ECase(X) IO.enumCase(Value, #X, ELF::X); + ECase(EM_NONE) + ECase(EM_M32) + ECase(EM_SPARC) + ECase(EM_386) + ECase(EM_68K) + ECase(EM_88K) + ECase(EM_486) + ECase(EM_860) + ECase(EM_MIPS) + ECase(EM_S370) + ECase(EM_MIPS_RS3_LE) + ECase(EM_PARISC) + ECase(EM_VPP500) + ECase(EM_SPARC32PLUS) + ECase(EM_960) + ECase(EM_PPC) + ECase(EM_PPC64) + ECase(EM_S390) + ECase(EM_SPU) + ECase(EM_V800) + ECase(EM_FR20) + ECase(EM_RH32) + ECase(EM_RCE) + ECase(EM_ARM) + ECase(EM_ALPHA) + ECase(EM_SH) + ECase(EM_SPARCV9) + ECase(EM_TRICORE) + ECase(EM_ARC) + ECase(EM_H8_300) + ECase(EM_H8_300H) + ECase(EM_H8S) + ECase(EM_H8_500) + ECase(EM_IA_64) + ECase(EM_MIPS_X) + ECase(EM_COLDFIRE) + ECase(EM_68HC12) + ECase(EM_MMA) + ECase(EM_PCP) + ECase(EM_NCPU) + ECase(EM_NDR1) + ECase(EM_STARCORE) + ECase(EM_ME16) + ECase(EM_ST100) + ECase(EM_TINYJ) + ECase(EM_X86_64) + ECase(EM_PDSP) + ECase(EM_PDP10) + ECase(EM_PDP11) + ECase(EM_FX66) + ECase(EM_ST9PLUS) + ECase(EM_ST7) + ECase(EM_68HC16) + ECase(EM_68HC11) + ECase(EM_68HC08) + ECase(EM_68HC05) + ECase(EM_SVX) + ECase(EM_ST19) + ECase(EM_VAX) + ECase(EM_CRIS) + ECase(EM_JAVELIN) + ECase(EM_FIREPATH) + ECase(EM_ZSP) + ECase(EM_MMIX) + ECase(EM_HUANY) + ECase(EM_PRISM) + ECase(EM_AVR) + ECase(EM_FR30) + ECase(EM_D10V) + ECase(EM_D30V) + ECase(EM_V850) + ECase(EM_M32R) + ECase(EM_MN10300) + ECase(EM_MN10200) + ECase(EM_PJ) + ECase(EM_OPENRISC) + ECase(EM_ARC_COMPACT) + ECase(EM_XTENSA) + ECase(EM_VIDEOCORE) + ECase(EM_TMM_GPP) + ECase(EM_NS32K) + ECase(EM_TPC) + ECase(EM_SNP1K) + ECase(EM_ST200) + ECase(EM_IP2K) + ECase(EM_MAX) + ECase(EM_CR) + ECase(EM_F2MC16) + ECase(EM_MSP430) + ECase(EM_BLACKFIN) + ECase(EM_SE_C33) + ECase(EM_SEP) + ECase(EM_ARCA) + ECase(EM_UNICORE) + ECase(EM_EXCESS) + ECase(EM_DXP) + ECase(EM_ALTERA_NIOS2) + ECase(EM_CRX) + ECase(EM_XGATE) + ECase(EM_C166) + ECase(EM_M16C) + ECase(EM_DSPIC30F) + ECase(EM_CE) + ECase(EM_M32C) + ECase(EM_TSK3000) + ECase(EM_RS08) + ECase(EM_SHARC) + ECase(EM_ECOG2) + ECase(EM_SCORE7) + ECase(EM_DSP24) + ECase(EM_VIDEOCORE3) + ECase(EM_LATTICEMICO32) + ECase(EM_SE_C17) + ECase(EM_TI_C6000) + ECase(EM_TI_C2000) + ECase(EM_TI_C5500) + ECase(EM_MMDSP_PLUS) + ECase(EM_CYPRESS_M8C) + ECase(EM_R32C) + ECase(EM_TRIMEDIA) + ECase(EM_HEXAGON) + ECase(EM_8051) + ECase(EM_STXP7X) + ECase(EM_NDS32) + ECase(EM_ECOG1) + ECase(EM_ECOG1X) + ECase(EM_MAXQ30) + ECase(EM_XIMO16) + ECase(EM_MANIK) + ECase(EM_CRAYNV2) + ECase(EM_RX) + ECase(EM_METAG) + ECase(EM_MCST_ELBRUS) + ECase(EM_ECOG16) + ECase(EM_CR16) + ECase(EM_ETPU) + ECase(EM_SLE9X) + ECase(EM_L10M) + ECase(EM_K10M) + ECase(EM_AARCH64) + ECase(EM_AVR32) + ECase(EM_STM8) + ECase(EM_TILE64) + ECase(EM_TILEPRO) + ECase(EM_CUDA) + ECase(EM_TILEGX) + ECase(EM_CLOUDSHIELD) + ECase(EM_COREA_1ST) + ECase(EM_COREA_2ND) + ECase(EM_ARC_COMPACT2) + ECase(EM_OPEN8) + ECase(EM_RL78) + ECase(EM_VIDEOCORE5) + ECase(EM_78KOR) + ECase(EM_56800EX) +#undef ECase +} + +void ScalarEnumerationTraits<ELFYAML::ELF_ELFCLASS>::enumeration( + IO &IO, ELFYAML::ELF_ELFCLASS &Value) { +#define ECase(X) IO.enumCase(Value, #X, ELF::X); + // Since the semantics of ELFCLASSNONE is "invalid", just don't accept it + // here. + ECase(ELFCLASS32) + ECase(ELFCLASS64) +#undef ECase +} + +void ScalarEnumerationTraits<ELFYAML::ELF_ELFDATA>::enumeration( + IO &IO, ELFYAML::ELF_ELFDATA &Value) { +#define ECase(X) IO.enumCase(Value, #X, ELF::X); + // Since the semantics of ELFDATANONE is "invalid", just don't accept it + // here. + ECase(ELFDATA2LSB) + ECase(ELFDATA2MSB) +#undef ECase +} + +void ScalarEnumerationTraits<ELFYAML::ELF_ELFOSABI>::enumeration( + IO &IO, ELFYAML::ELF_ELFOSABI &Value) { +#define ECase(X) IO.enumCase(Value, #X, ELF::X); + ECase(ELFOSABI_NONE) + ECase(ELFOSABI_HPUX) + ECase(ELFOSABI_NETBSD) + ECase(ELFOSABI_GNU) + ECase(ELFOSABI_GNU) + ECase(ELFOSABI_HURD) + ECase(ELFOSABI_SOLARIS) + ECase(ELFOSABI_AIX) + ECase(ELFOSABI_IRIX) + ECase(ELFOSABI_FREEBSD) + ECase(ELFOSABI_TRU64) + ECase(ELFOSABI_MODESTO) + ECase(ELFOSABI_OPENBSD) + ECase(ELFOSABI_OPENVMS) + ECase(ELFOSABI_NSK) + ECase(ELFOSABI_AROS) + ECase(ELFOSABI_FENIXOS) + ECase(ELFOSABI_C6000_ELFABI) + ECase(ELFOSABI_C6000_LINUX) + ECase(ELFOSABI_ARM) + ECase(ELFOSABI_STANDALONE) +#undef ECase +} + +void ScalarBitSetTraits<ELFYAML::ELF_EF>::bitset(IO &IO, + ELFYAML::ELF_EF &Value) { + const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext()); + assert(Object && "The IO context is not initialized"); +#define BCase(X) IO.bitSetCase(Value, #X, ELF::X); +#define BCaseMask(X, M) IO.maskedBitSetCase(Value, #X, ELF::X, ELF::M); + switch (Object->Header.Machine) { + case ELF::EM_ARM: + BCase(EF_ARM_SOFT_FLOAT) + BCase(EF_ARM_VFP_FLOAT) + BCaseMask(EF_ARM_EABI_UNKNOWN, EF_ARM_EABIMASK) + BCaseMask(EF_ARM_EABI_VER1, EF_ARM_EABIMASK) + BCaseMask(EF_ARM_EABI_VER2, EF_ARM_EABIMASK) + BCaseMask(EF_ARM_EABI_VER3, EF_ARM_EABIMASK) + BCaseMask(EF_ARM_EABI_VER4, EF_ARM_EABIMASK) + BCaseMask(EF_ARM_EABI_VER5, EF_ARM_EABIMASK) + break; + case ELF::EM_MIPS: + BCase(EF_MIPS_NOREORDER) + BCase(EF_MIPS_PIC) + BCase(EF_MIPS_CPIC) + BCase(EF_MIPS_ABI2) + BCase(EF_MIPS_32BITMODE) + BCase(EF_MIPS_NAN2008) + BCase(EF_MIPS_ABI_O32) + BCase(EF_MIPS_MICROMIPS) + BCase(EF_MIPS_ARCH_ASE_M16) + BCaseMask(EF_MIPS_ARCH_1, EF_MIPS_ARCH) + BCaseMask(EF_MIPS_ARCH_2, EF_MIPS_ARCH) + BCaseMask(EF_MIPS_ARCH_3, EF_MIPS_ARCH) + BCaseMask(EF_MIPS_ARCH_4, EF_MIPS_ARCH) + BCaseMask(EF_MIPS_ARCH_5, EF_MIPS_ARCH) + BCaseMask(EF_MIPS_ARCH_32, EF_MIPS_ARCH) + BCaseMask(EF_MIPS_ARCH_64, EF_MIPS_ARCH) + BCaseMask(EF_MIPS_ARCH_32R2, EF_MIPS_ARCH) + BCaseMask(EF_MIPS_ARCH_64R2, EF_MIPS_ARCH) + BCaseMask(EF_MIPS_ARCH_32R6, EF_MIPS_ARCH) + BCaseMask(EF_MIPS_ARCH_64R6, EF_MIPS_ARCH) + break; + case ELF::EM_HEXAGON: + BCase(EF_HEXAGON_MACH_V2) + BCase(EF_HEXAGON_MACH_V3) + BCase(EF_HEXAGON_MACH_V4) + BCase(EF_HEXAGON_MACH_V5) + BCase(EF_HEXAGON_ISA_V2) + BCase(EF_HEXAGON_ISA_V3) + BCase(EF_HEXAGON_ISA_V4) + BCase(EF_HEXAGON_ISA_V5) + break; + default: + llvm_unreachable("Unsupported architecture"); + } +#undef BCase +#undef BCaseMask +} + +void ScalarEnumerationTraits<ELFYAML::ELF_SHT>::enumeration( + IO &IO, ELFYAML::ELF_SHT &Value) { + const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext()); + assert(Object && "The IO context is not initialized"); +#define ECase(X) IO.enumCase(Value, #X, ELF::X); + ECase(SHT_NULL) + ECase(SHT_PROGBITS) + // No SHT_SYMTAB. Use the top-level `Symbols` key instead. + // FIXME: Issue a diagnostic with this information. + ECase(SHT_STRTAB) + ECase(SHT_RELA) + ECase(SHT_HASH) + ECase(SHT_DYNAMIC) + ECase(SHT_NOTE) + ECase(SHT_NOBITS) + ECase(SHT_REL) + ECase(SHT_SHLIB) + ECase(SHT_DYNSYM) + ECase(SHT_INIT_ARRAY) + ECase(SHT_FINI_ARRAY) + ECase(SHT_PREINIT_ARRAY) + ECase(SHT_GROUP) + ECase(SHT_SYMTAB_SHNDX) + ECase(SHT_LOOS) + ECase(SHT_GNU_ATTRIBUTES) + ECase(SHT_GNU_HASH) + ECase(SHT_GNU_verdef) + ECase(SHT_GNU_verneed) + ECase(SHT_GNU_versym) + ECase(SHT_HIOS) + ECase(SHT_LOPROC) + switch (Object->Header.Machine) { + case ELF::EM_ARM: + ECase(SHT_ARM_EXIDX) + ECase(SHT_ARM_PREEMPTMAP) + ECase(SHT_ARM_ATTRIBUTES) + ECase(SHT_ARM_DEBUGOVERLAY) + ECase(SHT_ARM_OVERLAYSECTION) + break; + case ELF::EM_HEXAGON: + ECase(SHT_HEX_ORDERED) + break; + case ELF::EM_X86_64: + ECase(SHT_X86_64_UNWIND) + break; + case ELF::EM_MIPS: + ECase(SHT_MIPS_REGINFO) + ECase(SHT_MIPS_OPTIONS) + ECase(SHT_MIPS_ABIFLAGS) + break; + default: + // Nothing to do. + break; + } +#undef ECase +} + +void ScalarBitSetTraits<ELFYAML::ELF_SHF>::bitset(IO &IO, + ELFYAML::ELF_SHF &Value) { +#define BCase(X) IO.bitSetCase(Value, #X, ELF::X); + BCase(SHF_WRITE) + BCase(SHF_ALLOC) + BCase(SHF_EXCLUDE) + BCase(SHF_EXECINSTR) + BCase(SHF_MERGE) + BCase(SHF_STRINGS) + BCase(SHF_INFO_LINK) + BCase(SHF_LINK_ORDER) + BCase(SHF_OS_NONCONFORMING) + BCase(SHF_GROUP) + BCase(SHF_TLS) +#undef BCase +} + +void ScalarEnumerationTraits<ELFYAML::ELF_STT>::enumeration( + IO &IO, ELFYAML::ELF_STT &Value) { +#define ECase(X) IO.enumCase(Value, #X, ELF::X); + ECase(STT_NOTYPE) + ECase(STT_OBJECT) + ECase(STT_FUNC) + ECase(STT_SECTION) + ECase(STT_FILE) + ECase(STT_COMMON) + ECase(STT_TLS) + ECase(STT_GNU_IFUNC) +#undef ECase +} + +void ScalarEnumerationTraits<ELFYAML::ELF_STV>::enumeration( + IO &IO, ELFYAML::ELF_STV &Value) { +#define ECase(X) IO.enumCase(Value, #X, ELF::X); + ECase(STV_DEFAULT) + ECase(STV_INTERNAL) + ECase(STV_HIDDEN) + ECase(STV_PROTECTED) +#undef ECase +} + +void ScalarBitSetTraits<ELFYAML::ELF_STO>::bitset(IO &IO, + ELFYAML::ELF_STO &Value) { + const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext()); + assert(Object && "The IO context is not initialized"); +#define BCase(X) IO.bitSetCase(Value, #X, ELF::X); + switch (Object->Header.Machine) { + case ELF::EM_MIPS: + BCase(STO_MIPS_OPTIONAL) + BCase(STO_MIPS_PLT) + BCase(STO_MIPS_PIC) + BCase(STO_MIPS_MICROMIPS) + break; + default: + break; // Nothing to do + } +#undef BCase +#undef BCaseMask +} + +void ScalarEnumerationTraits<ELFYAML::ELF_REL>::enumeration( + IO &IO, ELFYAML::ELF_REL &Value) { + const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext()); + assert(Object && "The IO context is not initialized"); +#define ELF_RELOC(X, Y) IO.enumCase(Value, #X, ELF::X); + switch (Object->Header.Machine) { + case ELF::EM_X86_64: +#include "llvm/Support/ELFRelocs/x86_64.def" + break; + case ELF::EM_MIPS: +#include "llvm/Support/ELFRelocs/Mips.def" + break; + case ELF::EM_HEXAGON: +#include "llvm/Support/ELFRelocs/Hexagon.def" + break; + case ELF::EM_386: +#include "llvm/Support/ELFRelocs/i386.def" + break; + case ELF::EM_AARCH64: +#include "llvm/Support/ELFRelocs/AArch64.def" + break; + case ELF::EM_ARM: +#include "llvm/Support/ELFRelocs/ARM.def" + break; + default: + llvm_unreachable("Unsupported architecture"); + } +#undef ELF_RELOC +} + +void MappingTraits<ELFYAML::FileHeader>::mapping(IO &IO, + ELFYAML::FileHeader &FileHdr) { + IO.mapRequired("Class", FileHdr.Class); + IO.mapRequired("Data", FileHdr.Data); + IO.mapOptional("OSABI", FileHdr.OSABI, ELFYAML::ELF_ELFOSABI(0)); + IO.mapRequired("Type", FileHdr.Type); + IO.mapRequired("Machine", FileHdr.Machine); + IO.mapOptional("Flags", FileHdr.Flags, ELFYAML::ELF_EF(0)); + IO.mapOptional("Entry", FileHdr.Entry, Hex64(0)); +} + +namespace { +struct NormalizedOther { + NormalizedOther(IO &) + : Visibility(ELFYAML::ELF_STV(0)), Other(ELFYAML::ELF_STO(0)) {} + NormalizedOther(IO &, uint8_t Original) + : Visibility(Original & 0x3), Other(Original & ~0x3) {} + + uint8_t denormalize(IO &) { return Visibility | Other; } + + ELFYAML::ELF_STV Visibility; + ELFYAML::ELF_STO Other; +}; +} + +void MappingTraits<ELFYAML::Symbol>::mapping(IO &IO, ELFYAML::Symbol &Symbol) { + IO.mapOptional("Name", Symbol.Name, StringRef()); + IO.mapOptional("Type", Symbol.Type, ELFYAML::ELF_STT(0)); + IO.mapOptional("Section", Symbol.Section, StringRef()); + IO.mapOptional("Value", Symbol.Value, Hex64(0)); + IO.mapOptional("Size", Symbol.Size, Hex64(0)); + + MappingNormalization<NormalizedOther, uint8_t> Keys(IO, Symbol.Other); + IO.mapOptional("Visibility", Keys->Visibility, ELFYAML::ELF_STV(0)); + IO.mapOptional("Other", Keys->Other, ELFYAML::ELF_STO(0)); +} + +void MappingTraits<ELFYAML::LocalGlobalWeakSymbols>::mapping( + IO &IO, ELFYAML::LocalGlobalWeakSymbols &Symbols) { + IO.mapOptional("Local", Symbols.Local); + IO.mapOptional("Global", Symbols.Global); + IO.mapOptional("Weak", Symbols.Weak); +} + +static void commonSectionMapping(IO &IO, ELFYAML::Section &Section) { + IO.mapOptional("Name", Section.Name, StringRef()); + IO.mapRequired("Type", Section.Type); + IO.mapOptional("Flags", Section.Flags, ELFYAML::ELF_SHF(0)); + IO.mapOptional("Address", Section.Address, Hex64(0)); + IO.mapOptional("Link", Section.Link, StringRef()); + IO.mapOptional("AddressAlign", Section.AddressAlign, Hex64(0)); +} + +static void sectionMapping(IO &IO, ELFYAML::RawContentSection &Section) { + commonSectionMapping(IO, Section); + IO.mapOptional("Content", Section.Content); + IO.mapOptional("Size", Section.Size, Hex64(Section.Content.binary_size())); +} + +static void sectionMapping(IO &IO, ELFYAML::RelocationSection &Section) { + commonSectionMapping(IO, Section); + IO.mapOptional("Info", Section.Info, StringRef()); + IO.mapOptional("Relocations", Section.Relocations); +} + +void MappingTraits<std::unique_ptr<ELFYAML::Section>>::mapping( + IO &IO, std::unique_ptr<ELFYAML::Section> &Section) { + ELFYAML::ELF_SHT sectionType; + if (IO.outputting()) + sectionType = Section->Type; + else + IO.mapRequired("Type", sectionType); + + switch (sectionType) { + case ELF::SHT_REL: + case ELF::SHT_RELA: + if (!IO.outputting()) + Section.reset(new ELFYAML::RelocationSection()); + sectionMapping(IO, *cast<ELFYAML::RelocationSection>(Section.get())); + break; + default: + if (!IO.outputting()) + Section.reset(new ELFYAML::RawContentSection()); + sectionMapping(IO, *cast<ELFYAML::RawContentSection>(Section.get())); + } +} + +StringRef MappingTraits<std::unique_ptr<ELFYAML::Section>>::validate( + IO &io, std::unique_ptr<ELFYAML::Section> &Section) { + const auto *RawSection = dyn_cast<ELFYAML::RawContentSection>(Section.get()); + if (!RawSection || RawSection->Size >= RawSection->Content.binary_size()) + return StringRef(); + return "Section size must be greater or equal to the content size"; +} + +void MappingTraits<ELFYAML::Relocation>::mapping(IO &IO, + ELFYAML::Relocation &Rel) { + IO.mapRequired("Offset", Rel.Offset); + IO.mapRequired("Symbol", Rel.Symbol); + IO.mapRequired("Type", Rel.Type); + IO.mapOptional("Addend", Rel.Addend); +} + +void MappingTraits<ELFYAML::Object>::mapping(IO &IO, ELFYAML::Object &Object) { + assert(!IO.getContext() && "The IO context is initialized already"); + IO.setContext(&Object); + IO.mapRequired("FileHeader", Object.Header); + IO.mapOptional("Sections", Object.Sections); + IO.mapOptional("Symbols", Object.Symbols); + IO.setContext(nullptr); +} + +} // end namespace yaml +} // end namespace llvm |
