| //===- WasmObjectFile.h - Wasm object file implementation -------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file declares the WasmObjectFile class, which implements the ObjectFile |
| // interface for Wasm files. |
| // |
| // See: https://github.com/WebAssembly/design/blob/master/BinaryEncoding.md |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_OBJECT_WASM_H |
| #define LLVM_OBJECT_WASM_H |
| |
| #include "llvm/Object/ObjectFile.h" |
| #include "llvm/Support/Wasm.h" |
| |
| namespace llvm { |
| namespace object { |
| |
| class WasmObjectFile : public ObjectFile { |
| public: |
| WasmObjectFile(MemoryBufferRef Object, Error &Err); |
| const wasm::WasmObjectHeader &getHeader() const; |
| const wasm::WasmSection *getWasmSection(const SectionRef &Section) const; |
| static bool classof(const Binary *v) { return v->isWasm(); } |
| |
| protected: |
| void moveSymbolNext(DataRefImpl &Symb) const override; |
| |
| std::error_code printSymbolName(raw_ostream &OS, |
| DataRefImpl Symb) const override; |
| |
| uint32_t getSymbolFlags(DataRefImpl Symb) const override; |
| |
| basic_symbol_iterator symbol_begin() const override; |
| |
| basic_symbol_iterator symbol_end() const override; |
| Expected<StringRef> getSymbolName(DataRefImpl Symb) const override; |
| |
| Expected<uint64_t> getSymbolAddress(DataRefImpl Symb) const override; |
| uint64_t getSymbolValueImpl(DataRefImpl Symb) const override; |
| uint32_t getSymbolAlignment(DataRefImpl Symb) const override; |
| uint64_t getCommonSymbolSizeImpl(DataRefImpl Symb) const override; |
| Expected<SymbolRef::Type> getSymbolType(DataRefImpl Symb) const override; |
| Expected<section_iterator> getSymbolSection(DataRefImpl Symb) const override; |
| |
| // Overrides from SectionRef. |
| void moveSectionNext(DataRefImpl &Sec) const override; |
| std::error_code getSectionName(DataRefImpl Sec, |
| StringRef &Res) const override; |
| uint64_t getSectionAddress(DataRefImpl Sec) const override; |
| uint64_t getSectionSize(DataRefImpl Sec) const override; |
| std::error_code getSectionContents(DataRefImpl Sec, |
| StringRef &Res) const override; |
| uint64_t getSectionAlignment(DataRefImpl Sec) const override; |
| bool isSectionCompressed(DataRefImpl Sec) const override; |
| bool isSectionText(DataRefImpl Sec) const override; |
| bool isSectionData(DataRefImpl Sec) const override; |
| bool isSectionBSS(DataRefImpl Sec) const override; |
| bool isSectionVirtual(DataRefImpl Sec) const override; |
| bool isSectionBitcode(DataRefImpl Sec) const override; |
| relocation_iterator section_rel_begin(DataRefImpl Sec) const override; |
| relocation_iterator section_rel_end(DataRefImpl Sec) const override; |
| section_iterator getRelocatedSection(DataRefImpl Sec) const override; |
| |
| // Overrides from RelocationRef. |
| void moveRelocationNext(DataRefImpl &Rel) const override; |
| uint64_t getRelocationOffset(DataRefImpl Rel) const override; |
| symbol_iterator getRelocationSymbol(DataRefImpl Rel) const override; |
| uint64_t getRelocationType(DataRefImpl Rel) const override; |
| void getRelocationTypeName(DataRefImpl Rel, |
| SmallVectorImpl<char> &Result) const override; |
| |
| section_iterator section_begin() const override; |
| section_iterator section_end() const override; |
| uint8_t getBytesInAddress() const override; |
| StringRef getFileFormatName() const override; |
| unsigned getArch() const override; |
| SubtargetFeatures getFeatures() const override; |
| bool isRelocatableObject() const override; |
| |
| private: |
| const uint8_t *getPtr(size_t Offset) const; |
| Error parseUserSection(wasm::WasmSection &Sec, const uint8_t *Ptr, |
| size_t Length); |
| |
| wasm::WasmObjectHeader Header; |
| std::vector<wasm::WasmSection> Sections; |
| }; |
| } |
| } |
| |
| #endif |