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authororivej <orivej@yandex-team.ru>2022-02-10 16:44:49 +0300
committerDaniil Cherednik <dcherednik@yandex-team.ru>2022-02-10 16:44:49 +0300
commit718c552901d703c502ccbefdfc3c9028d608b947 (patch)
tree46534a98bbefcd7b1f3faa5b52c138ab27db75b7 /contrib/libs/llvm12/include/llvm/MC/MCMachObjectWriter.h
parente9656aae26e0358d5378e5b63dcac5c8dbe0e4d0 (diff)
downloadydb-718c552901d703c502ccbefdfc3c9028d608b947.tar.gz
Restoring authorship annotation for <orivej@yandex-team.ru>. Commit 1 of 2.
Diffstat (limited to 'contrib/libs/llvm12/include/llvm/MC/MCMachObjectWriter.h')
-rw-r--r--contrib/libs/llvm12/include/llvm/MC/MCMachObjectWriter.h580
1 files changed, 290 insertions, 290 deletions
diff --git a/contrib/libs/llvm12/include/llvm/MC/MCMachObjectWriter.h b/contrib/libs/llvm12/include/llvm/MC/MCMachObjectWriter.h
index 8ffd972bb6..08c0c952f9 100644
--- a/contrib/libs/llvm12/include/llvm/MC/MCMachObjectWriter.h
+++ b/contrib/libs/llvm12/include/llvm/MC/MCMachObjectWriter.h
@@ -1,293 +1,293 @@
-#pragma once
-
-#ifdef __GNUC__
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wunused-parameter"
-#endif
-
-//===- llvm/MC/MCMachObjectWriter.h - Mach Object Writer --------*- C++ -*-===//
-//
-// 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 LLVM_MC_MCMACHOBJECTWRITER_H
-#define LLVM_MC_MCMACHOBJECTWRITER_H
-
-#include "llvm/ADT/DenseMap.h"
-#include "llvm/ADT/StringRef.h"
-#include "llvm/BinaryFormat/MachO.h"
-#include "llvm/MC/MCExpr.h"
-#include "llvm/MC/MCObjectWriter.h"
-#include "llvm/MC/MCSection.h"
-#include "llvm/MC/StringTableBuilder.h"
-#include "llvm/Support/EndianStream.h"
-#include <cstdint>
-#include <memory>
-#include <string>
-#include <vector>
-
-namespace llvm {
-
-class MachObjectWriter;
-
-class MCMachObjectTargetWriter : public MCObjectTargetWriter {
- const unsigned Is64Bit : 1;
- const uint32_t CPUType;
-protected:
- uint32_t CPUSubtype;
-public:
- unsigned LocalDifference_RIT;
-
-protected:
- MCMachObjectTargetWriter(bool Is64Bit_, uint32_t CPUType_,
- uint32_t CPUSubtype_);
-
- void setLocalDifferenceRelocationType(unsigned Type) {
- LocalDifference_RIT = Type;
- }
-
-public:
- virtual ~MCMachObjectTargetWriter();
-
- Triple::ObjectFormatType getFormat() const override { return Triple::MachO; }
- static bool classof(const MCObjectTargetWriter *W) {
- return W->getFormat() == Triple::MachO;
- }
-
- /// \name Lifetime Management
- /// @{
-
- virtual void reset() {}
-
- /// @}
-
- /// \name Accessors
- /// @{
-
- bool is64Bit() const { return Is64Bit; }
- uint32_t getCPUType() const { return CPUType; }
- uint32_t getCPUSubtype() const { return CPUSubtype; }
- unsigned getLocalDifferenceRelocationType() const {
- return LocalDifference_RIT;
- }
-
- /// @}
-
- /// \name API
- /// @{
-
- virtual void recordRelocation(MachObjectWriter *Writer, MCAssembler &Asm,
- const MCAsmLayout &Layout,
- const MCFragment *Fragment,
- const MCFixup &Fixup, MCValue Target,
- uint64_t &FixedValue) = 0;
-
- /// @}
-};
-
-class MachObjectWriter : public MCObjectWriter {
- /// Helper struct for containing some precomputed information on symbols.
- struct MachSymbolData {
- const MCSymbol *Symbol;
- uint64_t StringIndex;
- uint8_t SectionIndex;
-
- // Support lexicographic sorting.
- bool operator<(const MachSymbolData &RHS) const;
- };
-
- /// The target specific Mach-O writer instance.
- std::unique_ptr<MCMachObjectTargetWriter> TargetObjectWriter;
-
- /// \name Relocation Data
- /// @{
-
- struct RelAndSymbol {
- const MCSymbol *Sym;
- MachO::any_relocation_info MRE;
- RelAndSymbol(const MCSymbol *Sym, const MachO::any_relocation_info &MRE)
- : Sym(Sym), MRE(MRE) {}
- };
-
- DenseMap<const MCSection *, std::vector<RelAndSymbol>> Relocations;
- DenseMap<const MCSection *, unsigned> IndirectSymBase;
-
- SectionAddrMap SectionAddress;
-
- /// @}
- /// \name Symbol Table Data
- /// @{
-
+#pragma once
+
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-parameter"
+#endif
+
+//===- llvm/MC/MCMachObjectWriter.h - Mach Object Writer --------*- C++ -*-===//
+//
+// 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 LLVM_MC_MCMACHOBJECTWRITER_H
+#define LLVM_MC_MCMACHOBJECTWRITER_H
+
+#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/BinaryFormat/MachO.h"
+#include "llvm/MC/MCExpr.h"
+#include "llvm/MC/MCObjectWriter.h"
+#include "llvm/MC/MCSection.h"
+#include "llvm/MC/StringTableBuilder.h"
+#include "llvm/Support/EndianStream.h"
+#include <cstdint>
+#include <memory>
+#include <string>
+#include <vector>
+
+namespace llvm {
+
+class MachObjectWriter;
+
+class MCMachObjectTargetWriter : public MCObjectTargetWriter {
+ const unsigned Is64Bit : 1;
+ const uint32_t CPUType;
+protected:
+ uint32_t CPUSubtype;
+public:
+ unsigned LocalDifference_RIT;
+
+protected:
+ MCMachObjectTargetWriter(bool Is64Bit_, uint32_t CPUType_,
+ uint32_t CPUSubtype_);
+
+ void setLocalDifferenceRelocationType(unsigned Type) {
+ LocalDifference_RIT = Type;
+ }
+
+public:
+ virtual ~MCMachObjectTargetWriter();
+
+ Triple::ObjectFormatType getFormat() const override { return Triple::MachO; }
+ static bool classof(const MCObjectTargetWriter *W) {
+ return W->getFormat() == Triple::MachO;
+ }
+
+ /// \name Lifetime Management
+ /// @{
+
+ virtual void reset() {}
+
+ /// @}
+
+ /// \name Accessors
+ /// @{
+
+ bool is64Bit() const { return Is64Bit; }
+ uint32_t getCPUType() const { return CPUType; }
+ uint32_t getCPUSubtype() const { return CPUSubtype; }
+ unsigned getLocalDifferenceRelocationType() const {
+ return LocalDifference_RIT;
+ }
+
+ /// @}
+
+ /// \name API
+ /// @{
+
+ virtual void recordRelocation(MachObjectWriter *Writer, MCAssembler &Asm,
+ const MCAsmLayout &Layout,
+ const MCFragment *Fragment,
+ const MCFixup &Fixup, MCValue Target,
+ uint64_t &FixedValue) = 0;
+
+ /// @}
+};
+
+class MachObjectWriter : public MCObjectWriter {
+ /// Helper struct for containing some precomputed information on symbols.
+ struct MachSymbolData {
+ const MCSymbol *Symbol;
+ uint64_t StringIndex;
+ uint8_t SectionIndex;
+
+ // Support lexicographic sorting.
+ bool operator<(const MachSymbolData &RHS) const;
+ };
+
+ /// The target specific Mach-O writer instance.
+ std::unique_ptr<MCMachObjectTargetWriter> TargetObjectWriter;
+
+ /// \name Relocation Data
+ /// @{
+
+ struct RelAndSymbol {
+ const MCSymbol *Sym;
+ MachO::any_relocation_info MRE;
+ RelAndSymbol(const MCSymbol *Sym, const MachO::any_relocation_info &MRE)
+ : Sym(Sym), MRE(MRE) {}
+ };
+
+ DenseMap<const MCSection *, std::vector<RelAndSymbol>> Relocations;
+ DenseMap<const MCSection *, unsigned> IndirectSymBase;
+
+ SectionAddrMap SectionAddress;
+
+ /// @}
+ /// \name Symbol Table Data
+ /// @{
+
StringTableBuilder StringTable;
- std::vector<MachSymbolData> LocalSymbolData;
- std::vector<MachSymbolData> ExternalSymbolData;
- std::vector<MachSymbolData> UndefinedSymbolData;
-
- /// @}
-
- MachSymbolData *findSymbolData(const MCSymbol &Sym);
-
- void writeWithPadding(StringRef Str, uint64_t Size);
-
-public:
- MachObjectWriter(std::unique_ptr<MCMachObjectTargetWriter> MOTW,
- raw_pwrite_stream &OS, bool IsLittleEndian)
- : TargetObjectWriter(std::move(MOTW)),
+ std::vector<MachSymbolData> LocalSymbolData;
+ std::vector<MachSymbolData> ExternalSymbolData;
+ std::vector<MachSymbolData> UndefinedSymbolData;
+
+ /// @}
+
+ MachSymbolData *findSymbolData(const MCSymbol &Sym);
+
+ void writeWithPadding(StringRef Str, uint64_t Size);
+
+public:
+ MachObjectWriter(std::unique_ptr<MCMachObjectTargetWriter> MOTW,
+ raw_pwrite_stream &OS, bool IsLittleEndian)
+ : TargetObjectWriter(std::move(MOTW)),
StringTable(TargetObjectWriter->is64Bit() ? StringTableBuilder::MachO64
: StringTableBuilder::MachO),
- W(OS, IsLittleEndian ? support::little : support::big) {}
-
- support::endian::Writer W;
-
- const MCSymbol &findAliasedSymbol(const MCSymbol &Sym) const;
-
- /// \name Lifetime management Methods
- /// @{
-
- void reset() override;
-
- /// @}
-
- /// \name Utility Methods
- /// @{
-
- bool isFixupKindPCRel(const MCAssembler &Asm, unsigned Kind);
-
- SectionAddrMap &getSectionAddressMap() { return SectionAddress; }
-
- uint64_t getSectionAddress(const MCSection *Sec) const {
- return SectionAddress.lookup(Sec);
- }
- uint64_t getSymbolAddress(const MCSymbol &S, const MCAsmLayout &Layout) const;
-
- uint64_t getFragmentAddress(const MCFragment *Fragment,
- const MCAsmLayout &Layout) const;
-
- uint64_t getPaddingSize(const MCSection *SD, const MCAsmLayout &Layout) const;
-
- bool doesSymbolRequireExternRelocation(const MCSymbol &S);
-
- /// @}
-
- /// \name Target Writer Proxy Accessors
- /// @{
-
- bool is64Bit() const { return TargetObjectWriter->is64Bit(); }
- bool isX86_64() const {
- uint32_t CPUType = TargetObjectWriter->getCPUType();
- return CPUType == MachO::CPU_TYPE_X86_64;
- }
-
- /// @}
-
- void writeHeader(MachO::HeaderFileType Type, unsigned NumLoadCommands,
- unsigned LoadCommandsSize, bool SubsectionsViaSymbols);
-
- /// Write a segment load command.
- ///
- /// \param NumSections The number of sections in this segment.
- /// \param SectionDataSize The total size of the sections.
- void writeSegmentLoadCommand(StringRef Name, unsigned NumSections,
- uint64_t VMAddr, uint64_t VMSize,
- uint64_t SectionDataStartOffset,
- uint64_t SectionDataSize, uint32_t MaxProt,
- uint32_t InitProt);
-
- void writeSection(const MCAsmLayout &Layout, const MCSection &Sec,
- uint64_t VMAddr, uint64_t FileOffset, unsigned Flags,
- uint64_t RelocationsStart, unsigned NumRelocations);
-
- void writeSymtabLoadCommand(uint32_t SymbolOffset, uint32_t NumSymbols,
- uint32_t StringTableOffset,
- uint32_t StringTableSize);
-
- void writeDysymtabLoadCommand(
- uint32_t FirstLocalSymbol, uint32_t NumLocalSymbols,
- uint32_t FirstExternalSymbol, uint32_t NumExternalSymbols,
- uint32_t FirstUndefinedSymbol, uint32_t NumUndefinedSymbols,
- uint32_t IndirectSymbolOffset, uint32_t NumIndirectSymbols);
-
- void writeNlist(MachSymbolData &MSD, const MCAsmLayout &Layout);
-
- void writeLinkeditLoadCommand(uint32_t Type, uint32_t DataOffset,
- uint32_t DataSize);
-
- void writeLinkerOptionsLoadCommand(const std::vector<std::string> &Options);
-
- // FIXME: We really need to improve the relocation validation. Basically, we
- // want to implement a separate computation which evaluates the relocation
- // entry as the linker would, and verifies that the resultant fixup value is
- // exactly what the encoder wanted. This will catch several classes of
- // problems:
- //
- // - Relocation entry bugs, the two algorithms are unlikely to have the same
- // exact bug.
- //
- // - Relaxation issues, where we forget to relax something.
- //
- // - Input errors, where something cannot be correctly encoded. 'as' allows
- // these through in many cases.
-
- // Add a relocation to be output in the object file. At the time this is
- // called, the symbol indexes are not know, so if the relocation refers
- // to a symbol it should be passed as \p RelSymbol so that it can be updated
- // afterwards. If the relocation doesn't refer to a symbol, nullptr should be
- // used.
- void addRelocation(const MCSymbol *RelSymbol, const MCSection *Sec,
- MachO::any_relocation_info &MRE) {
- RelAndSymbol P(RelSymbol, MRE);
- Relocations[Sec].push_back(P);
- }
-
- void recordRelocation(MCAssembler &Asm, const MCAsmLayout &Layout,
- const MCFragment *Fragment, const MCFixup &Fixup,
- MCValue Target, uint64_t &FixedValue) override;
-
- void bindIndirectSymbols(MCAssembler &Asm);
-
- /// Compute the symbol table data.
- void computeSymbolTable(MCAssembler &Asm,
- std::vector<MachSymbolData> &LocalSymbolData,
- std::vector<MachSymbolData> &ExternalSymbolData,
- std::vector<MachSymbolData> &UndefinedSymbolData);
-
- void computeSectionAddresses(const MCAssembler &Asm,
- const MCAsmLayout &Layout);
-
- void executePostLayoutBinding(MCAssembler &Asm,
- const MCAsmLayout &Layout) override;
-
- bool isSymbolRefDifferenceFullyResolvedImpl(const MCAssembler &Asm,
- const MCSymbol &A,
- const MCSymbol &B,
- bool InSet) const override;
-
- bool isSymbolRefDifferenceFullyResolvedImpl(const MCAssembler &Asm,
- const MCSymbol &SymA,
- const MCFragment &FB, bool InSet,
- bool IsPCRel) const override;
-
- uint64_t writeObject(MCAssembler &Asm, const MCAsmLayout &Layout) override;
-};
-
-/// Construct a new Mach-O writer instance.
-///
-/// This routine takes ownership of the target writer subclass.
-///
-/// \param MOTW - The target specific Mach-O writer subclass.
-/// \param OS - The stream to write to.
-/// \returns The constructed object writer.
-std::unique_ptr<MCObjectWriter>
-createMachObjectWriter(std::unique_ptr<MCMachObjectTargetWriter> MOTW,
- raw_pwrite_stream &OS, bool IsLittleEndian);
-
-} // end namespace llvm
-
-#endif // LLVM_MC_MCMACHOBJECTWRITER_H
-
-#ifdef __GNUC__
-#pragma GCC diagnostic pop
-#endif
+ W(OS, IsLittleEndian ? support::little : support::big) {}
+
+ support::endian::Writer W;
+
+ const MCSymbol &findAliasedSymbol(const MCSymbol &Sym) const;
+
+ /// \name Lifetime management Methods
+ /// @{
+
+ void reset() override;
+
+ /// @}
+
+ /// \name Utility Methods
+ /// @{
+
+ bool isFixupKindPCRel(const MCAssembler &Asm, unsigned Kind);
+
+ SectionAddrMap &getSectionAddressMap() { return SectionAddress; }
+
+ uint64_t getSectionAddress(const MCSection *Sec) const {
+ return SectionAddress.lookup(Sec);
+ }
+ uint64_t getSymbolAddress(const MCSymbol &S, const MCAsmLayout &Layout) const;
+
+ uint64_t getFragmentAddress(const MCFragment *Fragment,
+ const MCAsmLayout &Layout) const;
+
+ uint64_t getPaddingSize(const MCSection *SD, const MCAsmLayout &Layout) const;
+
+ bool doesSymbolRequireExternRelocation(const MCSymbol &S);
+
+ /// @}
+
+ /// \name Target Writer Proxy Accessors
+ /// @{
+
+ bool is64Bit() const { return TargetObjectWriter->is64Bit(); }
+ bool isX86_64() const {
+ uint32_t CPUType = TargetObjectWriter->getCPUType();
+ return CPUType == MachO::CPU_TYPE_X86_64;
+ }
+
+ /// @}
+
+ void writeHeader(MachO::HeaderFileType Type, unsigned NumLoadCommands,
+ unsigned LoadCommandsSize, bool SubsectionsViaSymbols);
+
+ /// Write a segment load command.
+ ///
+ /// \param NumSections The number of sections in this segment.
+ /// \param SectionDataSize The total size of the sections.
+ void writeSegmentLoadCommand(StringRef Name, unsigned NumSections,
+ uint64_t VMAddr, uint64_t VMSize,
+ uint64_t SectionDataStartOffset,
+ uint64_t SectionDataSize, uint32_t MaxProt,
+ uint32_t InitProt);
+
+ void writeSection(const MCAsmLayout &Layout, const MCSection &Sec,
+ uint64_t VMAddr, uint64_t FileOffset, unsigned Flags,
+ uint64_t RelocationsStart, unsigned NumRelocations);
+
+ void writeSymtabLoadCommand(uint32_t SymbolOffset, uint32_t NumSymbols,
+ uint32_t StringTableOffset,
+ uint32_t StringTableSize);
+
+ void writeDysymtabLoadCommand(
+ uint32_t FirstLocalSymbol, uint32_t NumLocalSymbols,
+ uint32_t FirstExternalSymbol, uint32_t NumExternalSymbols,
+ uint32_t FirstUndefinedSymbol, uint32_t NumUndefinedSymbols,
+ uint32_t IndirectSymbolOffset, uint32_t NumIndirectSymbols);
+
+ void writeNlist(MachSymbolData &MSD, const MCAsmLayout &Layout);
+
+ void writeLinkeditLoadCommand(uint32_t Type, uint32_t DataOffset,
+ uint32_t DataSize);
+
+ void writeLinkerOptionsLoadCommand(const std::vector<std::string> &Options);
+
+ // FIXME: We really need to improve the relocation validation. Basically, we
+ // want to implement a separate computation which evaluates the relocation
+ // entry as the linker would, and verifies that the resultant fixup value is
+ // exactly what the encoder wanted. This will catch several classes of
+ // problems:
+ //
+ // - Relocation entry bugs, the two algorithms are unlikely to have the same
+ // exact bug.
+ //
+ // - Relaxation issues, where we forget to relax something.
+ //
+ // - Input errors, where something cannot be correctly encoded. 'as' allows
+ // these through in many cases.
+
+ // Add a relocation to be output in the object file. At the time this is
+ // called, the symbol indexes are not know, so if the relocation refers
+ // to a symbol it should be passed as \p RelSymbol so that it can be updated
+ // afterwards. If the relocation doesn't refer to a symbol, nullptr should be
+ // used.
+ void addRelocation(const MCSymbol *RelSymbol, const MCSection *Sec,
+ MachO::any_relocation_info &MRE) {
+ RelAndSymbol P(RelSymbol, MRE);
+ Relocations[Sec].push_back(P);
+ }
+
+ void recordRelocation(MCAssembler &Asm, const MCAsmLayout &Layout,
+ const MCFragment *Fragment, const MCFixup &Fixup,
+ MCValue Target, uint64_t &FixedValue) override;
+
+ void bindIndirectSymbols(MCAssembler &Asm);
+
+ /// Compute the symbol table data.
+ void computeSymbolTable(MCAssembler &Asm,
+ std::vector<MachSymbolData> &LocalSymbolData,
+ std::vector<MachSymbolData> &ExternalSymbolData,
+ std::vector<MachSymbolData> &UndefinedSymbolData);
+
+ void computeSectionAddresses(const MCAssembler &Asm,
+ const MCAsmLayout &Layout);
+
+ void executePostLayoutBinding(MCAssembler &Asm,
+ const MCAsmLayout &Layout) override;
+
+ bool isSymbolRefDifferenceFullyResolvedImpl(const MCAssembler &Asm,
+ const MCSymbol &A,
+ const MCSymbol &B,
+ bool InSet) const override;
+
+ bool isSymbolRefDifferenceFullyResolvedImpl(const MCAssembler &Asm,
+ const MCSymbol &SymA,
+ const MCFragment &FB, bool InSet,
+ bool IsPCRel) const override;
+
+ uint64_t writeObject(MCAssembler &Asm, const MCAsmLayout &Layout) override;
+};
+
+/// Construct a new Mach-O writer instance.
+///
+/// This routine takes ownership of the target writer subclass.
+///
+/// \param MOTW - The target specific Mach-O writer subclass.
+/// \param OS - The stream to write to.
+/// \returns The constructed object writer.
+std::unique_ptr<MCObjectWriter>
+createMachObjectWriter(std::unique_ptr<MCMachObjectTargetWriter> MOTW,
+ raw_pwrite_stream &OS, bool IsLittleEndian);
+
+} // end namespace llvm
+
+#endif // LLVM_MC_MCMACHOBJECTWRITER_H
+
+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif