UnwindInfoSection.h

//===- 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
#defineLLD_MACHO_UNWIND_INFO_H

#include"ConcatOutputSection.h"
#include"SyntheticSections.h"
#include"llvm/ADT/MapVector.h"

namespacelld::macho {

classUnwindInfoSection : publicSyntheticSection {
public:
// If all functions are free of unwind info, we can omit the unwind info
// section entirely.
boolisNeeded() constoverride { return !allEntriesAreOmitted; }
voidaddSymbol(const Defined *);
virtualvoidprepare() = 0;

protected:
UnwindInfoSection();

 llvm::MapVector<std::pair<const InputSection *, uint64_t/*Defined::value*/>,
const Defined *>
 symbols;
bool allEntriesAreOmitted = true;
};

UnwindInfoSection *makeUnwindInfoSection();

} // namespace lld::macho

#endif