6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
105 lines
3.5 KiB
C++
105 lines
3.5 KiB
C++
#ifndef LLVM_DWP_DWP_H
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#define LLVM_DWP_DWP_H
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#include "DWPStringPool.h"
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/ADT/MapVector.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/DebugInfo/DWARF/DWARFContext.h"
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#include "llvm/DebugInfo/DWARF/DWARFUnitIndex.h"
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#include "llvm/MC/MCSection.h"
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#include "llvm/MC/MCStreamer.h"
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#include "llvm/Object/ObjectFile.h"
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#include "llvm/Support/Error.h"
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#include <deque>
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#include <vector>
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namespace llvm {
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enum OnCuIndexOverflow {
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HardStop,
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SoftStop,
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Continue,
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};
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struct UnitIndexEntry {
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DWARFUnitIndex::Entry::SectionContribution Contributions[8];
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std::string Name;
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std::string DWOName;
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StringRef DWPName;
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};
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// Holds data for Skeleton, Split Compilation, and Type Unit Headers (only in
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// v5) as defined in Dwarf 5 specification, 7.5.1.2, 7.5.1.3 and Dwarf 4
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// specification 7.5.1.1.
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struct InfoSectionUnitHeader {
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// unit_length field. Note that the type is uint64_t even in 32-bit dwarf.
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uint64_t Length = 0;
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// version field.
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uint16_t Version = 0;
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// unit_type field. Initialized only if Version >= 5.
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uint8_t UnitType = 0;
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// address_size field.
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uint8_t AddrSize = 0;
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// debug_abbrev_offset field. Note that the type is uint64_t even in 32-bit
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// dwarf. It is assumed to be 0.
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uint64_t DebugAbbrevOffset = 0;
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// dwo_id field. This resides in the header only if Version >= 5.
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// In earlier versions, it is read from DW_AT_GNU_dwo_id.
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std::optional<uint64_t> Signature;
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// Derived from the length of Length field.
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dwarf::DwarfFormat Format = dwarf::DwarfFormat::DWARF32;
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// The size of the Header in bytes. This is derived while parsing the header,
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// and is stored as a convenience.
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uint8_t HeaderSize = 0;
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};
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struct CompileUnitIdentifiers {
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uint64_t Signature = 0;
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const char *Name = "";
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const char *DWOName = "";
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};
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Error write(MCStreamer &Out, ArrayRef<std::string> Inputs,
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OnCuIndexOverflow OverflowOptValue);
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unsigned getContributionIndex(DWARFSectionKind Kind, uint32_t IndexVersion);
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Error handleSection(
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const StringMap<std::pair<MCSection *, DWARFSectionKind>> &KnownSections,
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const MCSection *StrSection, const MCSection *StrOffsetSection,
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const MCSection *TypesSection, const MCSection *CUIndexSection,
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const MCSection *TUIndexSection, const MCSection *InfoSection,
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const object::SectionRef &Section, MCStreamer &Out,
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std::deque<SmallString<32>> &UncompressedSections,
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uint32_t (&ContributionOffsets)[8], UnitIndexEntry &CurEntry,
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StringRef &CurStrSection, StringRef &CurStrOffsetSection,
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std::vector<StringRef> &CurTypesSection,
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std::vector<StringRef> &CurInfoSection, StringRef &AbbrevSection,
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StringRef &CurCUIndexSection, StringRef &CurTUIndexSection,
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std::vector<std::pair<DWARFSectionKind, uint32_t>> &SectionLength);
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Expected<InfoSectionUnitHeader> parseInfoSectionUnitHeader(StringRef Info);
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void writeStringsAndOffsets(MCStreamer &Out, DWPStringPool &Strings,
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MCSection *StrOffsetSection,
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StringRef CurStrSection,
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StringRef CurStrOffsetSection, uint16_t Version);
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Error buildDuplicateError(const std::pair<uint64_t, UnitIndexEntry> &PrevE,
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const CompileUnitIdentifiers &ID, StringRef DWPName);
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void writeIndex(MCStreamer &Out, MCSection *Section,
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ArrayRef<unsigned> ContributionOffsets,
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const MapVector<uint64_t, UnitIndexEntry> &IndexEntries,
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uint32_t IndexVersion);
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} // namespace llvm
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#endif // LLVM_DWP_DWP_H
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