MachOLinkGraphBuilder.h Source File (original) (raw)

13#ifndef LIB_EXECUTIONENGINE_JITLINK_MACHOLINKGRAPHBUILDER_H

14#define LIB_EXECUTIONENGINE_JITLINK_MACHOLINKGRAPHBUILDER_H

24namespace llvm {

28public:

32protected:

34 struct NormalizedSymbol {

37 private:

42 S(S) {

43 assert(( Name || Name ->empty()) && "Name must be none or non-empty");

44 }

46 public:

48 NormalizedSymbol &operator=(const NormalizedSymbol &) = delete;

50 NormalizedSymbol &operator=(NormalizedSymbol &&) = delete;

52 std::optional Name;

60 };

64 class NormalizedSection {

67 private:

68 NormalizedSection() = default;

70 public:

77 const char *Data = nullptr;

80 };

85 std::shared_ptrorc::SymbolStringPool SSP, Triple TT,

98 template <typename... ArgTs>

105

106

107

109 auto I = IndexToSection.find(Index);

110 assert(I != IndexToSection.end() && "No section recorded at index");

111 return I->second;

112 }

113

114

115

116

118 auto I = IndexToSection.find(Index);

119 if (I == IndexToSection.end())

121 formatv("{0:d}", Index));

122 return I->second;

123 }

124

125

126

127

129 auto I = IndexToSymbol.find(Index);

130 if (I == IndexToSymbol.end())

132 formatv("{0:d}", Index));

133 assert(I->second && "Null symbol at index");

134 return *I->second;

135 }

136

137

138

143 return nullptr;

144 return std::prev(I)->second;

145 }

146

147

148

152 if (Sym)

154 return *Sym;

157 }

158

161 static bool isAltEntry(const NormalizedSymbol &NSym);

162

163 static bool isDebugSection(const NormalizedSection &NSec);

165

179

180private:

183

184 void setCanonicalSymbol(NormalizedSection &NSec, Symbol &Sym) {

185 auto *&CanonicalSymEntry = NSec.CanonicalSymbols[Sym.getAddress()];

186

187

188

189 assert((!CanonicalSymEntry || CanonicalSymEntry->getSize() == 0) &&

190 "Duplicate canonical symbol at address");

191 CanonicalSymEntry = &Sym;

192 }

193

194 Section &getCommonSection();

195 void addSectionStartSymAndBlock(unsigned SecIndex, Section &GraphSec,

198 uint32_t Alignment, bool IsLive);

199

200 Error createNormalizedSections();

201 Error createNormalizedSymbols();

202

203

204

205 Error graphifyRegularSymbols();

206

207

208

209

210

211 Symbol &createStandardGraphSymbol(NormalizedSymbol &Sym, Block &B,

212 size_t Size, bool IsText,

213 bool IsNoDeadStrip, bool IsCanonical);

214

215

216 Error graphifySectionsWithCustomParsers();

217

218

219 Error graphifyCStringSection(NormalizedSection &NSec,

220 std::vector<NormalizedSymbol *> NSyms);

221

222

223

225

227 std::unique_ptr G;

228

229 bool SubsectionsViaSymbols = false;

231 Section *CommonSection = nullptr;

232

235};

236

237}

238}

239

240#endif

assert(UImm &&(UImm !=~static_cast< T >(0)) &&"Invalid immediate!")

This file defines the StringMap class.

static GCRegistry::Add< OcamlGC > B("ocaml", "ocaml 3.10-compatible GC")

static std::optional< TypeSize > getPointerSize(const Value *V, const DataLayout &DL, const TargetLibraryInfo &TLI, const Function *F)

This file defines the DenseMap class.

Lightweight error class with error context and mandatory checking.

Tagged union holding either a T or a Error.

StringMap - This is an unconventional map that is specialized for handling keys that are "strings",...

StringRef - Represent a constant reference to a string, i.e.

Manages the enabling and disabling of subtarget specific features.

Triple - Helper class for working with autoconf configuration names.

The instances of the Type class are immutable: once they are created, they are never changed.

const char *(*)(Edge::Kind) GetEdgeKindNameFunction

Section * GraphSection

Definition MachOLinkGraphBuilder.h:78

friend class MachOLinkGraphBuilder

Definition MachOLinkGraphBuilder.h:65

uint32_t Flags

Definition MachOLinkGraphBuilder.h:76

orc::ExecutorAddr Address

Definition MachOLinkGraphBuilder.h:73

char SectName[17]

Definition MachOLinkGraphBuilder.h:71

std::map< orc::ExecutorAddr, Symbol * > CanonicalSymbols

Definition MachOLinkGraphBuilder.h:79

uint64_t Alignment

Definition MachOLinkGraphBuilder.h:75

uint64_t Size

Definition MachOLinkGraphBuilder.h:74

char SegName[17]

Definition MachOLinkGraphBuilder.h:72

const char * Data

Definition MachOLinkGraphBuilder.h:77

static bool isDebugSection(const NormalizedSection &NSec)

void addCustomSectionParser(StringRef SectionName, SectionParserFunction Parse)

const object::MachOObjectFile & getObject() const

Definition MachOLinkGraphBuilder.h:90

virtual ~MachOLinkGraphBuilder()

virtual Error addRelocations()=0

std::function< Error(NormalizedSection &S)> SectionParserFunction

Definition MachOLinkGraphBuilder.h:82

static Scope getScope(StringRef Name, uint8_t Type)

static bool isZeroFillSection(const NormalizedSection &NSec)

Expected< Symbol & > findSymbolByAddress(NormalizedSection &NSec, orc::ExecutorAddr Address)

Returns the symbol with the highest address not greater than the search address, or an error if no su...

Definition MachOLinkGraphBuilder.h:149

Expected< NormalizedSymbol & > findSymbolByIndex(uint64_t Index)

Try to get the symbol at the given index.

Definition MachOLinkGraphBuilder.h:128

LinkGraph & getGraph() const

Definition MachOLinkGraphBuilder.h:88

Expected< std::unique_ptr< LinkGraph > > buildGraph()

NormalizedSection & getSectionByIndex(unsigned Index)

Index is zero-based (MachO section indexes are usually one-based) and assumed to be in-range.

Definition MachOLinkGraphBuilder.h:108

MachOLinkGraphBuilder(const object::MachOObjectFile &Obj, std::shared_ptr< orc::SymbolStringPool > SSP, Triple TT, SubtargetFeatures Features, LinkGraph::GetEdgeKindNameFunction GetEdgeKindName)

NormalizedSymbol & createNormalizedSymbol(ArgTs &&... Args)

Create a symbol.

Definition MachOLinkGraphBuilder.h:99

static Linkage getLinkage(uint16_t Desc)

Symbol * getSymbolByAddress(NormalizedSection &NSec, orc::ExecutorAddr Address)

Returns the symbol with the highest address not greater than the search address, or null if no such s...

Definition MachOLinkGraphBuilder.h:139

static bool isAltEntry(const NormalizedSymbol &NSym)

MachO::relocation_info getRelocationInfo(const object::relocation_iterator RelItr)

Definition MachOLinkGraphBuilder.h:167

Expected< NormalizedSection & > findSectionByIndex(unsigned Index)

Try to get the section at the given index.

Definition MachOLinkGraphBuilder.h:117

Represents an object file section.

orc::ExecutorAddr getAddress() const

Returns the address of this symbol.

MachO::any_relocation_info getRelocation(DataRefImpl Rel) const

DataRefImpl getRawDataRefImpl() const

Represents an address in the executor process.

Linkage

Describes symbol linkage. This can be used to resolve definition clashes.

Scope

Defines the scope in which this symbol should be visible: Default – Visible in the public interface o...

content_iterator< RelocationRef > relocation_iterator

uint64_t ExecutorAddrDiff

This is an optimization pass for GlobalISel generic memory operations.

auto formatv(bool Validate, const char *Fmt, Ts &&...Vals)

Error make_error(ArgTs &&... Args)

Make a Error instance representing failure using the given error info type.

FunctionAddr VTableAddr uintptr_t uintptr_t Data

BumpPtrAllocatorImpl<> BumpPtrAllocator

The standard BumpPtrAllocator which just uses the default template parameters.

NormalizedSymbol & operator=(const NormalizedSymbol &)=delete

uint8_t Type

Definition MachOLinkGraphBuilder.h:54

std::optional< StringRef > Name

Definition MachOLinkGraphBuilder.h:52

Symbol * GraphSymbol

Definition MachOLinkGraphBuilder.h:59

friend class MachOLinkGraphBuilder

Definition MachOLinkGraphBuilder.h:35

Linkage L

Definition MachOLinkGraphBuilder.h:57

uint8_t Sect

Definition MachOLinkGraphBuilder.h:55

uint16_t Desc

Definition MachOLinkGraphBuilder.h:56

uint64_t Value

Definition MachOLinkGraphBuilder.h:53

NormalizedSymbol(NormalizedSymbol &&)=delete

NormalizedSymbol & operator=(NormalizedSymbol &&)=delete

Scope S

Definition MachOLinkGraphBuilder.h:58

NormalizedSymbol(const NormalizedSymbol &)=delete