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When a module built with -autolink-force-load is imported, add a reference to a special symbol in the corresponding library so that ld is forced to link it. This means the library will be linked into the final binary even if no other symbols are used (which happens for some of our overlays that just add category methods to Objective-C classes). Second part of <rdar://problem/16829587> Swift SVN r17751
51 lines
1.4 KiB
C++
51 lines
1.4 KiB
C++
//===--- LinkLibrary.h - A module-level linker dependency -------*- C++ -*-===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See http://swift.org/LICENSE.txt for license information
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// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_AST_LINKLIBRARY_H
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#define SWIFT_AST_LINKLIBRARY_H
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#include "swift/Basic/LLVM.h"
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#include "llvm/ADT/SmallString.h"
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#include <string>
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namespace swift {
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// Must be kept in sync with diag::error_immediate_mode_missing_library.
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enum class LibraryKind {
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Library = 0,
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Framework
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};
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/// Represents a linker dependency for an imported module.
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// FIXME: This is basically a slightly more generic version of Clang's
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// Module::LinkLibrary.
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class LinkLibrary {
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private:
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std::string Name;
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unsigned Kind : 1;
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unsigned ForceLoad : 1;
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public:
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LinkLibrary(StringRef N, LibraryKind K, bool forceLoad = false)
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: Name(N), Kind(static_cast<unsigned>(K)), ForceLoad(forceLoad) {
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assert(getKind() == K && "not enough bits for the kind");
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}
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LibraryKind getKind() const { return static_cast<LibraryKind>(Kind); }
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StringRef getName() const { return Name; }
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bool shouldForceLoad() const { return ForceLoad; }
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};
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} // end namespace swift
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#endif
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