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//===- IRObjectFile.h - LLVM IR object file implementation ------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file declares the IRObjectFile template class.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_OBJECT_IROBJECTFILE_H
#define LLVM_OBJECT_IROBJECTFILE_H
#include "llvm/Bitcode/BitcodeReader.h"
#include "llvm/Object/IRSymtab.h"
#include "llvm/Object/ModuleSymbolTable.h"
#include "llvm/Object/SymbolicFile.h"
namespace llvm {
class Module;
namespace object {
class ObjectFile;
class IRObjectFile : public SymbolicFile {
std::vector<std::unique_ptr<Module>> Mods;
ModuleSymbolTable SymTab;
IRObjectFile(MemoryBufferRef Object,
std::vector<std::unique_ptr<Module>> Mods);
public:
~IRObjectFile() override;
void moveSymbolNext(DataRefImpl &Symb) const override;
Error printSymbolName(raw_ostream &OS, DataRefImpl Symb) const override;
Expected<uint32_t> getSymbolFlags(DataRefImpl Symb) const override;
basic_symbol_iterator symbol_begin() const override;
basic_symbol_iterator symbol_end() const override;
bool is64Bit() const override {
return Triple(getTargetTriple()).isArch64Bit();
}
StringRef getTargetTriple() const;
static bool classof(const Binary *v) {
return v->isIR();
}
using module_iterator =
pointee_iterator<std::vector<std::unique_ptr<Module>>::const_iterator,
const Module>;
module_iterator module_begin() const { return module_iterator(Mods.begin()); }
module_iterator module_end() const { return module_iterator(Mods.end()); }
iterator_range<module_iterator> modules() const {
return make_range(module_begin(), module_end());
}
/// Finds and returns bitcode embedded in the given object file, or an
/// error code if not found.
static Expected<MemoryBufferRef> findBitcodeInObject(const ObjectFile &Obj);
/// Finds and returns bitcode in the given memory buffer (which may
/// be either a bitcode file or a native object file with embedded bitcode),
/// or an error code if not found.
static Expected<MemoryBufferRef>
findBitcodeInMemBuffer(MemoryBufferRef Object);
static Expected<std::unique_ptr<IRObjectFile>> create(MemoryBufferRef Object,
LLVMContext &Context);
};
/// The contents of a bitcode file and its irsymtab. Any underlying data
/// for the irsymtab are owned by Symtab and Strtab.
struct IRSymtabFile {
std::vector<BitcodeModule> Mods;
SmallVector<char, 0> Symtab, Strtab;
irsymtab::Reader TheReader;
};
/// Reads a bitcode file, creating its irsymtab if necessary.
Expected<IRSymtabFile> readIRSymtab(MemoryBufferRef MBRef);
}
} // namespace llvm
#endif
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