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//===- UnwindInfoSection.h ------------------------------------------------===//
//
// 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 LLD_MACHO_UNWIND_INFO_H
#define LLD_MACHO_UNWIND_INFO_H
#include "ConcatOutputSection.h"
#include "SyntheticSections.h"
#include "llvm/ADT/MapVector.h"
#include "mach-o/compact_unwind_encoding.h"
namespace lld {
namespace macho {
class UnwindInfoSection : public SyntheticSection {
public:
// If all functions are free of unwind info, we can omit the unwind info
// section entirely.
bool isNeeded() const override { return !allEntriesAreOmitted; }
void addSymbol(const Defined *);
virtual void prepare() = 0;
protected:
UnwindInfoSection();
llvm::MapVector<std::pair<const InputSection *, uint64_t /*Defined::value*/>,
const Defined *>
symbols;
bool allEntriesAreOmitted = true;
};
UnwindInfoSection *makeUnwindInfoSection();
} // namespace macho
} // namespace lld
#endif
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