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llvm-mirror/include/llvm/Linker/Linker.h
Chandler Carruth ae65e281f3 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.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00

59 lines
1.8 KiB
C++

//===- Linker.h - Module Linker Interface -----------------------*- 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
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LINKER_LINKER_H
#define LLVM_LINKER_LINKER_H
#include "llvm/ADT/StringSet.h"
#include "llvm/Linker/IRMover.h"
namespace llvm {
class Module;
class StructType;
class Type;
/// This class provides the core functionality of linking in LLVM. It keeps a
/// pointer to the merged module so far. It doesn't take ownership of the
/// module since it is assumed that the user of this class will want to do
/// something with it after the linking.
class Linker {
IRMover Mover;
public:
enum Flags {
None = 0,
OverrideFromSrc = (1 << 0),
LinkOnlyNeeded = (1 << 1),
};
Linker(Module &M);
/// Link \p Src into the composite.
///
/// Passing OverrideSymbols as true will have symbols from Src
/// shadow those in the Dest.
///
/// Passing InternalizeCallback will have the linker call the function with
/// the new module and a list of global value names to be internalized by the
/// callback.
///
/// Returns true on error.
bool linkInModule(std::unique_ptr<Module> Src, unsigned Flags = Flags::None,
std::function<void(Module &, const StringSet<> &)>
InternalizeCallback = {});
static bool linkModules(Module &Dest, std::unique_ptr<Module> Src,
unsigned Flags = Flags::None,
std::function<void(Module &, const StringSet<> &)>
InternalizeCallback = {});
};
} // End llvm namespace
#endif