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This data type includes the contents of a bitcode file. Right now a bitcode file can only contain modules, but a later change will add a symbol table. Differential Revision: https://reviews.llvm.org/D33969 llvm-svn: 305019
83 lines
2.5 KiB
C++
83 lines
2.5 KiB
C++
//===- IRObjectFile.h - LLVM IR 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 IRObjectFile template class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_OBJECT_IROBJECTFILE_H
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#define LLVM_OBJECT_IROBJECTFILE_H
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#include "llvm/ADT/PointerUnion.h"
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#include "llvm/Object/IRSymtab.h"
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#include "llvm/Object/ModuleSymbolTable.h"
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#include "llvm/Object/SymbolicFile.h"
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namespace llvm {
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class BitcodeModule;
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class Mangler;
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class Module;
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class GlobalValue;
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class Triple;
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namespace object {
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class ObjectFile;
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class IRObjectFile : public SymbolicFile {
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std::vector<std::unique_ptr<Module>> Mods;
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ModuleSymbolTable SymTab;
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IRObjectFile(MemoryBufferRef Object,
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std::vector<std::unique_ptr<Module>> Mods);
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public:
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~IRObjectFile() override;
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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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StringRef getTargetTriple() const;
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static inline bool classof(const Binary *v) {
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return v->isIR();
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}
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/// \brief Finds and returns bitcode embedded in the given object file, or an
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/// error code if not found.
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static ErrorOr<MemoryBufferRef> findBitcodeInObject(const ObjectFile &Obj);
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/// \brief Finds and returns bitcode in the given memory buffer (which may
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/// be either a bitcode file or a native object file with embedded bitcode),
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/// or an error code if not found.
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static ErrorOr<MemoryBufferRef>
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findBitcodeInMemBuffer(MemoryBufferRef Object);
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static Expected<std::unique_ptr<IRObjectFile>> create(MemoryBufferRef Object,
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LLVMContext &Context);
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};
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/// The contents of a bitcode file and its irsymtab. Any underlying data
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/// for the irsymtab are owned by Symtab and Strtab.
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struct IRSymtabFile {
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std::vector<BitcodeModule> Mods;
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SmallVector<char, 0> Symtab, Strtab;
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irsymtab::Reader TheReader;
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};
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/// Reads a bitcode file, creating its irsymtab if necessary.
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Expected<IRSymtabFile> readIRSymtab(MemoryBufferRef MBRef);
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}
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}
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#endif
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