Files
archived-llvm/include/llvm/Object/IRObjectFile.h
Chandler Carruth 6b547686c5 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@351636 91177308-0d34-0410-b5e6-96231b3b80d8
2019-01-19 08:50:56 +00:00

93 lines
2.9 KiB
C++

//===- 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/ADT/PointerUnion.h"
#include "llvm/Object/IRSymtab.h"
#include "llvm/Object/ModuleSymbolTable.h"
#include "llvm/Object/SymbolicFile.h"
namespace llvm {
class BitcodeModule;
class Mangler;
class Module;
class GlobalValue;
class Triple;
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;
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;
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);
}
}
#endif