8e9c531922
Before this patch, when an unknown symbol type is used in IFS stub, it will be treated as a NO_TYPE and parsed without error. This patch makes llvm-ifs throw an error when this scenario happens.
135 lines
3.5 KiB
C++
135 lines
3.5 KiB
C++
//===- IFSStub.cpp --------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===-----------------------------------------------------------------------===/
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#include "llvm/InterfaceStub/IFSStub.h"
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#include "llvm/BinaryFormat/ELF.h"
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#include "llvm/Support/ErrorHandling.h"
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using namespace llvm;
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using namespace llvm::ifs;
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IFSStub::IFSStub(IFSStub const &Stub) {
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IfsVersion = Stub.IfsVersion;
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Target = Stub.Target;
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SoName = Stub.SoName;
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NeededLibs = Stub.NeededLibs;
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Symbols = Stub.Symbols;
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}
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IFSStub::IFSStub(IFSStub &&Stub) {
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IfsVersion = std::move(Stub.IfsVersion);
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Target = std::move(Stub.Target);
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SoName = std::move(Stub.SoName);
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NeededLibs = std::move(Stub.NeededLibs);
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Symbols = std::move(Stub.Symbols);
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}
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IFSStubTriple::IFSStubTriple(IFSStubTriple const &Stub) : IFSStub() {
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IfsVersion = Stub.IfsVersion;
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Target = Stub.Target;
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SoName = Stub.SoName;
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NeededLibs = Stub.NeededLibs;
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Symbols = Stub.Symbols;
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}
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IFSStubTriple::IFSStubTriple(IFSStub const &Stub) {
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IfsVersion = Stub.IfsVersion;
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Target = Stub.Target;
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SoName = Stub.SoName;
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NeededLibs = Stub.NeededLibs;
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Symbols = Stub.Symbols;
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}
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IFSStubTriple::IFSStubTriple(IFSStubTriple &&Stub) {
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IfsVersion = std::move(Stub.IfsVersion);
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Target = std::move(Stub.Target);
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SoName = std::move(Stub.SoName);
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NeededLibs = std::move(Stub.NeededLibs);
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Symbols = std::move(Stub.Symbols);
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}
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bool IFSTarget::empty() {
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return !Triple && !ObjectFormat && !Arch && !ArchString && !Endianness &&
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!BitWidth;
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}
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uint8_t ifs::convertIFSBitWidthToELF(IFSBitWidthType BitWidth) {
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switch (BitWidth) {
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case IFSBitWidthType::IFS32:
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return ELF::ELFCLASS32;
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case IFSBitWidthType::IFS64:
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return ELF::ELFCLASS64;
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default:
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llvm_unreachable("unknown bitwidth");
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}
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}
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uint8_t ifs::convertIFSEndiannessToELF(IFSEndiannessType Endianness) {
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switch (Endianness) {
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case IFSEndiannessType::Little:
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return ELF::ELFDATA2LSB;
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case IFSEndiannessType::Big:
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return ELF::ELFDATA2MSB;
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default:
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llvm_unreachable("unknown endianness");
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}
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}
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uint8_t ifs::convertIFSSymbolTypeToELF(IFSSymbolType SymbolType) {
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switch (SymbolType) {
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case IFSSymbolType::Object:
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return ELF::STT_OBJECT;
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case IFSSymbolType::Func:
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return ELF::STT_FUNC;
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case IFSSymbolType::TLS:
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return ELF::STT_TLS;
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case IFSSymbolType::NoType:
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return ELF::STT_NOTYPE;
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default:
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llvm_unreachable("unknown symbol type");
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}
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}
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IFSBitWidthType ifs::convertELFBitWidthToIFS(uint8_t BitWidth) {
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switch (BitWidth) {
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case ELF::ELFCLASS32:
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return IFSBitWidthType::IFS32;
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case ELF::ELFCLASS64:
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return IFSBitWidthType::IFS64;
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default:
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return IFSBitWidthType::Unknown;
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}
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}
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IFSEndiannessType ifs::convertELFEndiannessToIFS(uint8_t Endianness) {
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switch (Endianness) {
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case ELF::ELFDATA2LSB:
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return IFSEndiannessType::Little;
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case ELF::ELFDATA2MSB:
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return IFSEndiannessType::Big;
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default:
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return IFSEndiannessType::Unknown;
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}
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}
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IFSSymbolType ifs::convertELFSymbolTypeToIFS(uint8_t SymbolType) {
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SymbolType = SymbolType & 0xf;
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switch (SymbolType) {
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case ELF::STT_OBJECT:
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return IFSSymbolType::Object;
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case ELF::STT_FUNC:
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return IFSSymbolType::Func;
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case ELF::STT_TLS:
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return IFSSymbolType::TLS;
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case ELF::STT_NOTYPE:
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return IFSSymbolType::NoType;
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default:
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return IFSSymbolType::Unknown;
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}
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}
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