76 lines
2.4 KiB
C++
76 lines
2.4 KiB
C++
//===- PublicsStream.h - PDB Public Symbol Stream -------- ------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_DEBUGINFO_PDB_NATIVE_PUBLICSSTREAM_H
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#define LLVM_DEBUGINFO_PDB_NATIVE_PUBLICSSTREAM_H
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#include "llvm/DebugInfo/PDB/Native/GlobalsStream.h"
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#include "llvm/Support/BinaryStreamArray.h"
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#include "llvm/Support/Compiler.h"
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#include "llvm/Support/Error.h"
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namespace llvm {
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namespace msf {
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class MappedBlockStream;
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}
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namespace codeview {
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class PublicSym32;
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}
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namespace pdb {
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struct PublicsStreamHeader;
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struct SectionOffset;
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class SymbolStream;
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class PublicsStream {
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public:
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LLVM_ABI PublicsStream(std::unique_ptr<msf::MappedBlockStream> Stream);
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LLVM_ABI ~PublicsStream();
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LLVM_ABI Error reload();
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LLVM_ABI uint32_t getSymHash() const;
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LLVM_ABI uint16_t getThunkTableSection() const;
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LLVM_ABI uint32_t getThunkTableOffset() const;
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const GSIHashTable &getPublicsTable() const { return PublicsTable; }
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FixedStreamArray<support::ulittle32_t> getAddressMap() const {
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return AddressMap;
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}
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FixedStreamArray<support::ulittle32_t> getThunkMap() const {
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return ThunkMap;
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}
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FixedStreamArray<SectionOffset> getSectionOffsets() const {
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return SectionOffsets;
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}
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/// Find a public symbol by a segment and offset.
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///
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/// In case there is more than one symbol (for example due to ICF), the first
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/// one is returned.
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///
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/// \return If a symbol was found, the symbol at the provided address is
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/// returned as well as the index of this symbol in the address map. If
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/// the binary was linked with ICF, there might be more symbols with the
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/// same address after the returned one. If no symbol is found,
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/// `std::nullopt` is returned.
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LLVM_ABI std::optional<std::pair<codeview::PublicSym32, size_t>>
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findByAddress(const SymbolStream &Symbols, uint16_t Segment,
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uint32_t Offset) const;
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private:
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std::unique_ptr<msf::MappedBlockStream> Stream;
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GSIHashTable PublicsTable;
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FixedStreamArray<support::ulittle32_t> AddressMap;
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FixedStreamArray<support::ulittle32_t> ThunkMap;
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FixedStreamArray<SectionOffset> SectionOffsets;
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const PublicsStreamHeader *Header;
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};
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}
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}
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#endif
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