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30f006473b
This is the first part of an effort to add wasm binary support across all llvm tools. Patch by Sam Clegg Differential Revision: https://reviews.llvm.org/D26172 llvm-svn: 288251
100 lines
3.9 KiB
C++
100 lines
3.9 KiB
C++
//===- WasmObjectFile.h - Wasm object file implementation -------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file declares the WasmObjectFile class, which implements the ObjectFile
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// interface for Wasm files.
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//
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// See: https://github.com/WebAssembly/design/blob/master/BinaryEncoding.md
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_OBJECT_WASM_H
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#define LLVM_OBJECT_WASM_H
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#include "llvm/Object/ObjectFile.h"
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#include "llvm/Support/Wasm.h"
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namespace llvm {
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namespace object {
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class WasmObjectFile : public ObjectFile {
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public:
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WasmObjectFile(MemoryBufferRef Object, Error &Err);
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const wasm::WasmObjectHeader &getHeader() const;
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const wasm::WasmSection *getWasmSection(const SectionRef &Section) const;
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static bool classof(const Binary *v) { return v->isWasm(); }
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protected:
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void moveSymbolNext(DataRefImpl &Symb) const override;
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std::error_code printSymbolName(raw_ostream &OS,
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DataRefImpl Symb) const override;
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uint32_t getSymbolFlags(DataRefImpl Symb) const override;
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basic_symbol_iterator symbol_begin() const override;
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basic_symbol_iterator symbol_end() const override;
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Expected<StringRef> getSymbolName(DataRefImpl Symb) const override;
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Expected<uint64_t> getSymbolAddress(DataRefImpl Symb) const override;
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uint64_t getSymbolValueImpl(DataRefImpl Symb) const override;
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uint32_t getSymbolAlignment(DataRefImpl Symb) const override;
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uint64_t getCommonSymbolSizeImpl(DataRefImpl Symb) const override;
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Expected<SymbolRef::Type> getSymbolType(DataRefImpl Symb) const override;
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Expected<section_iterator> getSymbolSection(DataRefImpl Symb) const override;
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// Overrides from SectionRef.
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void moveSectionNext(DataRefImpl &Sec) const override;
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std::error_code getSectionName(DataRefImpl Sec,
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StringRef &Res) const override;
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uint64_t getSectionAddress(DataRefImpl Sec) const override;
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uint64_t getSectionSize(DataRefImpl Sec) const override;
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std::error_code getSectionContents(DataRefImpl Sec,
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StringRef &Res) const override;
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uint64_t getSectionAlignment(DataRefImpl Sec) const override;
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bool isSectionCompressed(DataRefImpl Sec) const override;
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bool isSectionText(DataRefImpl Sec) const override;
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bool isSectionData(DataRefImpl Sec) const override;
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bool isSectionBSS(DataRefImpl Sec) const override;
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bool isSectionVirtual(DataRefImpl Sec) const override;
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bool isSectionBitcode(DataRefImpl Sec) const override;
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relocation_iterator section_rel_begin(DataRefImpl Sec) const override;
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relocation_iterator section_rel_end(DataRefImpl Sec) const override;
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section_iterator getRelocatedSection(DataRefImpl Sec) const override;
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// Overrides from RelocationRef.
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void moveRelocationNext(DataRefImpl &Rel) const override;
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uint64_t getRelocationOffset(DataRefImpl Rel) const override;
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symbol_iterator getRelocationSymbol(DataRefImpl Rel) const override;
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uint64_t getRelocationType(DataRefImpl Rel) const override;
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void getRelocationTypeName(DataRefImpl Rel,
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SmallVectorImpl<char> &Result) const override;
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section_iterator section_begin() const override;
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section_iterator section_end() const override;
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uint8_t getBytesInAddress() const override;
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StringRef getFileFormatName() const override;
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unsigned getArch() const override;
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SubtargetFeatures getFeatures() const override;
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bool isRelocatableObject() const override;
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private:
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const uint8_t *getPtr(size_t Offset) const;
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Error parseUserSection(wasm::WasmSection &Sec, const uint8_t *Ptr,
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size_t Length);
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wasm::WasmObjectHeader Header;
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std::vector<wasm::WasmSection> Sections;
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};
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}
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}
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#endif
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