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548f2b6e8f
Owning the buffer is somewhat inflexible. Some Binaries have sub Binaries (like Archive) and we had to create dummy buffers just to handle that. It is also a bad fit for IRObjectFile where the Module wants to own the buffer too. Keeping this ownership would make supporting IR inside native objects particularly painful. This patch focuses in lib/Object. If something elsewhere used to own an Binary, now it also owns a MemoryBuffer. This patch introduces a few new types. * MemoryBufferRef. This is just a pair of StringRefs for the data and name. This is to MemoryBuffer as StringRef is to std::string. * OwningBinary. A combination of Binary and a MemoryBuffer. This is needed for convenience functions that take a filename and return both the buffer and the Binary using that buffer. The C api now uses OwningBinary to avoid any change in semantics. I will start a new thread to see if we want to change it and how. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216002 91177308-0d34-0410-b5e6-96231b3b80d8
59 lines
1.7 KiB
C++
59 lines
1.7 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/Object/SymbolicFile.h"
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namespace llvm {
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class Mangler;
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class Module;
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class GlobalValue;
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namespace object {
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class IRObjectFile : public SymbolicFile {
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std::unique_ptr<Module> M;
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std::unique_ptr<Mangler> Mang;
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std::vector<std::pair<std::string, uint32_t>> AsmSymbols;
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public:
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IRObjectFile(MemoryBufferRef Object, std::unique_ptr<Module> M);
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~IRObjectFile();
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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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const GlobalValue *getSymbolGV(DataRefImpl Symb) const;
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basic_symbol_iterator symbol_begin_impl() const override;
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basic_symbol_iterator symbol_end_impl() const override;
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const Module &getModule() const {
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return const_cast<IRObjectFile*>(this)->getModule();
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}
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Module &getModule() {
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return *M;
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}
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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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static ErrorOr<IRObjectFile *> createIRObjectFile(MemoryBufferRef Object,
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LLVMContext &Context);
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};
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}
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}
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#endif
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