blob: 8f9343784fa07e8c82b2b7dd18ce9d57c9231ae0 [file] [log] [blame]
//===- MinGW.h --------------------------------------------------*- C++ -*-===//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#include "Config.h"
#include "Symbols.h"
#include "lld/Common/LLVM.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/StringSet.h"
#include "llvm/Option/ArgList.h"
#include <vector>
namespace lld {
namespace coff {
class COFFLinkerContext;
// Logic for deciding what symbols to export, when exporting all
// symbols for MinGW.
class AutoExporter {
void addWholeArchive(StringRef path);
llvm::StringSet<> excludeSymbols;
llvm::StringSet<> excludeSymbolPrefixes;
llvm::StringSet<> excludeSymbolSuffixes;
llvm::StringSet<> excludeLibs;
llvm::StringSet<> excludeObjects;
bool shouldExport(const COFFLinkerContext &ctx, Defined *sym) const;
void writeDefFile(StringRef name);
// The -wrap option is a feature to rename symbols so that you can write
// wrappers for existing functions. If you pass `-wrap:foo`, all
// occurrences of symbol `foo` are resolved to `__wrap_foo` (so, you are
// expected to write `__wrap_foo` function as a wrapper). The original
// symbol becomes accessible as `__real_foo`, so you can call that from your
// wrapper.
// This data structure is instantiated for each -wrap option.
struct WrappedSymbol {
Symbol *sym;
Symbol *real;
Symbol *wrap;
std::vector<WrappedSymbol> addWrappedSymbols(COFFLinkerContext &ctx,
llvm::opt::InputArgList &args);
void wrapSymbols(COFFLinkerContext &ctx, ArrayRef<WrappedSymbol> wrapped);
} // namespace coff
} // namespace lld