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RuntimeDyldMachOARM.h
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1 //===----- RuntimeDyldMachOARM.h ---- MachO/ARM specific code. ----*- C++ -*-=//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #ifndef LLVM_LIB_EXECUTIONENGINE_RUNTIMEDYLD_TARGETS_RUNTIMEDYLDMACHOARM_H
11 #define LLVM_LIB_EXECUTIONENGINE_RUNTIMEDYLD_TARGETS_RUNTIMEDYLDMACHOARM_H
12 
13 #include "../RuntimeDyldMachO.h"
14 #include <string>
15 
16 #define DEBUG_TYPE "dyld"
17 
18 namespace llvm {
19 
21  : public RuntimeDyldMachOCRTPBase<RuntimeDyldMachOARM> {
22 private:
24 
25 public:
26 
28 
31  : RuntimeDyldMachOCRTPBase(MM, Resolver) {}
32 
33  unsigned getMaxStubSize() override { return 8; }
34 
35  unsigned getStubAlignment() override { return 4; }
36 
38  auto Flags = RuntimeDyldImpl::getJITSymbolFlags(SR);
39  Flags.getTargetFlags() = ARMJITSymbolFlags::fromObjectSymbol(SR);
40  return Flags;
41  }
42 
43  uint64_t modifyAddressBasedOnFlags(uint64_t Addr,
44  JITSymbolFlags Flags) const override {
46  Addr |= 0x1;
47  return Addr;
48  }
49 
50  bool isAddrTargetThumb(unsigned SectionID, uint64_t Offset) {
51  auto TargetObjAddr = Sections[SectionID].getObjAddress() + Offset;
52  for (auto &KV : GlobalSymbolTable) {
53  auto &Entry = KV.second;
54  auto SymbolObjAddr =
55  Sections[Entry.getSectionID()].getObjAddress() + Entry.getOffset();
56  if (TargetObjAddr == SymbolObjAddr)
57  return (Entry.getFlags().getTargetFlags() & ARMJITSymbolFlags::Thumb);
58  }
59  return false;
60  }
61 
64  uint8_t *LocalAddress = Section.getAddressWithOffset(RE.Offset);
65 
66  switch (RE.RelType) {
67  default:
68  return memcpyAddend(RE);
69  case MachO::ARM_RELOC_BR24: {
70  uint32_t Temp = readBytesUnaligned(LocalAddress, 4);
71  Temp &= 0x00ffffff; // Mask out the opcode.
72  // Now we've got the shifted immediate, shift by 2, sign extend and ret.
73  return SignExtend32<26>(Temp << 2);
74  }
75 
77  // This is a pair of instructions whose operands combine to provide 22
78  // bits of displacement:
79  // Encoding for high bits 1111 0XXX XXXX XXXX
80  // Encoding for low bits 1111 1XXX XXXX XXXX
81  uint16_t HighInsn = readBytesUnaligned(LocalAddress, 2);
82  if ((HighInsn & 0xf800) != 0xf000)
83  return make_error<StringError>("Unrecognized thumb branch encoding "
84  "(BR22 high bits)",
86 
87  uint16_t LowInsn = readBytesUnaligned(LocalAddress + 2, 2);
88  if ((LowInsn & 0xf800) != 0xf800)
89  return make_error<StringError>("Unrecognized thumb branch encoding "
90  "(BR22 low bits)",
92 
93  return SignExtend64<23>(((HighInsn & 0x7ff) << 12) |
94  ((LowInsn & 0x7ff) << 1));
95  }
96  }
97  }
98 
100  processRelocationRef(unsigned SectionID, relocation_iterator RelI,
101  const ObjectFile &BaseObjT,
102  ObjSectionToIDMap &ObjSectionToID,
103  StubMap &Stubs) override {
104  const MachOObjectFile &Obj =
105  static_cast<const MachOObjectFile &>(BaseObjT);
107  Obj.getRelocation(RelI->getRawDataRefImpl());
108  uint32_t RelType = Obj.getAnyRelocationType(RelInfo);
109 
110  // Set to true for thumb functions in this (or previous) TUs.
111  // Will be used to set the TargetIsThumbFunc member on the relocation entry.
112  bool TargetIsLocalThumbFunc = false;
113  if (Obj.getPlainRelocationExternal(RelInfo)) {
114  auto Symbol = RelI->getSymbol();
115  StringRef TargetName;
116  if (auto TargetNameOrErr = Symbol->getName())
117  TargetName = *TargetNameOrErr;
118  else
119  return TargetNameOrErr.takeError();
120 
121  // If the target is external but the value doesn't have a name then we've
122  // converted the value to a section/offset pair, but we still need to set
123  // the IsTargetThumbFunc bit, so look the value up in the globla symbol table.
124  auto EntryItr = GlobalSymbolTable.find(TargetName);
125  if (EntryItr != GlobalSymbolTable.end()) {
126  TargetIsLocalThumbFunc =
127  EntryItr->second.getFlags().getTargetFlags() &
129  }
130  }
131 
132  if (Obj.isRelocationScattered(RelInfo)) {
133  if (RelType == MachO::ARM_RELOC_HALF_SECTDIFF)
134  return processHALFSECTDIFFRelocation(SectionID, RelI, Obj,
135  ObjSectionToID);
136  else if (RelType == MachO::GENERIC_RELOC_VANILLA)
137  return processScatteredVANILLA(SectionID, RelI, Obj, ObjSectionToID,
138  TargetIsLocalThumbFunc);
139  else
140  return ++RelI;
141  }
142 
143  // Sanity check relocation type.
144  switch (RelType) {
151  default:
152  if (RelType > MachO::ARM_RELOC_HALF_SECTDIFF)
153  return make_error<RuntimeDyldError>(("MachO ARM relocation type " +
154  Twine(RelType) +
155  " is out of range").str());
156  break;
157  }
158 
159  RelocationEntry RE(getRelocationEntry(SectionID, Obj, RelI));
160  if (auto AddendOrErr = decodeAddend(RE))
161  RE.Addend = *AddendOrErr;
162  else
163  return AddendOrErr.takeError();
164  RE.IsTargetThumbFunc = TargetIsLocalThumbFunc;
165 
167  if (auto ValueOrErr = getRelocationValueRef(Obj, RelI, RE, ObjSectionToID))
168  Value = *ValueOrErr;
169  else
170  return ValueOrErr.takeError();
171 
172  // If this is a branch from a thumb function (BR22) then make sure we mark
173  // the value as being a thumb stub: we don't want to mix it up with an ARM
174  // stub targeting the same function.
176  Value.IsStubThumb = true;
177 
178  if (RE.IsPCRel)
179  makeValueAddendPCRel(Value, RelI,
180  (RE.RelType == MachO::ARM_THUMB_RELOC_BR22) ? 4 : 8);
181 
182  // If this is a non-external branch target check whether Value points to a
183  // thumb func.
184  if (!Value.SymbolName && (RelType == MachO::ARM_RELOC_BR24 ||
185  RelType == MachO::ARM_THUMB_RELOC_BR22))
187 
188  if (RE.RelType == MachO::ARM_RELOC_BR24 ||
190  processBranchRelocation(RE, Value, Stubs);
191  else {
192  RE.Addend = Value.Offset;
193  if (Value.SymbolName)
195  else
197  }
198 
199  return ++RelI;
200  }
201 
202  void resolveRelocation(const RelocationEntry &RE, uint64_t Value) override {
204  const SectionEntry &Section = Sections[RE.SectionID];
205  uint8_t *LocalAddress = Section.getAddressWithOffset(RE.Offset);
206 
207  // If the relocation is PC-relative, the value to be encoded is the
208  // pointer difference.
209  if (RE.IsPCRel) {
210  uint64_t FinalAddress = Section.getLoadAddressWithOffset(RE.Offset);
211  Value -= FinalAddress;
212  // ARM PCRel relocations have an effective-PC offset of two instructions
213  // (four bytes in Thumb mode, 8 bytes in ARM mode).
214  Value -= (RE.RelType == MachO::ARM_THUMB_RELOC_BR22) ? 4 : 8;
215  }
216 
217  switch (RE.RelType) {
219  Value += RE.Addend;
220  uint16_t HighInsn = readBytesUnaligned(LocalAddress, 2);
221  assert((HighInsn & 0xf800) == 0xf000 &&
222  "Unrecognized thumb branch encoding (BR22 high bits)");
223  HighInsn = (HighInsn & 0xf800) | ((Value >> 12) & 0x7ff);
224 
225  uint16_t LowInsn = readBytesUnaligned(LocalAddress + 2, 2);
226  assert((LowInsn & 0xf800) != 0xf8000 &&
227  "Unrecognized thumb branch encoding (BR22 low bits)");
228  LowInsn = (LowInsn & 0xf800) | ((Value >> 1) & 0x7ff);
229 
230  writeBytesUnaligned(HighInsn, LocalAddress, 2);
231  writeBytesUnaligned(LowInsn, LocalAddress + 2, 2);
232  break;
233  }
234 
236  if (RE.IsTargetThumbFunc)
237  Value |= 0x01;
238  writeBytesUnaligned(Value + RE.Addend, LocalAddress, 1 << RE.Size);
239  break;
240  case MachO::ARM_RELOC_BR24: {
241  // Mask the value into the target address. We know instructions are
242  // 32-bit aligned, so we can do it all at once.
243  Value += RE.Addend;
244  // The low two bits of the value are not encoded.
245  Value >>= 2;
246  // Mask the value to 24 bits.
247  uint64_t FinalValue = Value & 0xffffff;
248  // FIXME: If the destination is a Thumb function (and the instruction
249  // is a non-predicated BL instruction), we need to change it to a BLX
250  // instruction instead.
251 
252  // Insert the value into the instruction.
253  uint32_t Temp = readBytesUnaligned(LocalAddress, 4);
254  writeBytesUnaligned((Temp & ~0xffffff) | FinalValue, LocalAddress, 4);
255 
256  break;
257  }
259  uint64_t SectionABase = Sections[RE.Sections.SectionA].getLoadAddress();
260  uint64_t SectionBBase = Sections[RE.Sections.SectionB].getLoadAddress();
261  assert((Value == SectionABase || Value == SectionBBase) &&
262  "Unexpected HALFSECTDIFF relocation value.");
263  Value = SectionABase - SectionBBase + RE.Addend;
264  if (RE.Size & 0x1) // :upper16:
265  Value = (Value >> 16);
266 
267  bool IsThumb = RE.Size & 0x2;
268 
269  Value &= 0xffff;
270 
271  uint32_t Insn = readBytesUnaligned(LocalAddress, 4);
272 
273  if (IsThumb)
274  Insn = (Insn & 0x8f00fbf0) | ((Value & 0xf000) >> 12) |
275  ((Value & 0x0800) >> 1) | ((Value & 0x0700) << 20) |
276  ((Value & 0x00ff) << 16);
277  else
278  Insn = (Insn & 0xfff0f000) | ((Value & 0xf000) << 4) | (Value & 0x0fff);
279  writeBytesUnaligned(Insn, LocalAddress, 4);
280  break;
281  }
282 
283  default:
284  llvm_unreachable("Invalid relocation type");
285  }
286  }
287 
288  Error finalizeSection(const ObjectFile &Obj, unsigned SectionID,
289  const SectionRef &Section) {
290  StringRef Name;
291  Section.getName(Name);
292 
293  if (Name == "__nl_symbol_ptr")
294  return populateIndirectSymbolPointersSection(cast<MachOObjectFile>(Obj),
295  Section, SectionID);
296  return Error::success();
297  }
298 
299 private:
300 
301  void processBranchRelocation(const RelocationEntry &RE,
302  const RelocationValueRef &Value,
303  StubMap &Stubs) {
304  // This is an ARM branch relocation, need to use a stub function.
305  // Look up for existing stub.
307  RuntimeDyldMachO::StubMap::const_iterator i = Stubs.find(Value);
308  uint8_t *Addr;
309  if (i != Stubs.end()) {
310  Addr = Section.getAddressWithOffset(i->second);
311  } else {
312  // Create a new stub function.
313  assert(Section.getStubOffset() % 4 == 0 && "Misaligned stub");
314  Stubs[Value] = Section.getStubOffset();
315  uint32_t StubOpcode = 0;
316  if (RE.RelType == MachO::ARM_RELOC_BR24)
317  StubOpcode = 0xe51ff004; // ldr pc, [pc, #-4]
318  else if (RE.RelType == MachO::ARM_THUMB_RELOC_BR22)
319  StubOpcode = 0xf000f8df; // ldr pc, [pc]
320  else
321  llvm_unreachable("Unrecognized relocation");
322  Addr = Section.getAddressWithOffset(Section.getStubOffset());
323  writeBytesUnaligned(StubOpcode, Addr, 4);
324  uint8_t *StubTargetAddr = Addr + 4;
325  RelocationEntry StubRE(
326  RE.SectionID, StubTargetAddr - Section.getAddress(),
327  MachO::GENERIC_RELOC_VANILLA, Value.Offset, false, 2);
329  if (Value.SymbolName)
330  addRelocationForSymbol(StubRE, Value.SymbolName);
331  else
332  addRelocationForSection(StubRE, Value.SectionID);
334  }
335  RelocationEntry TargetRE(RE.SectionID, RE.Offset, RE.RelType, 0,
336  RE.IsPCRel, RE.Size);
337  resolveRelocation(TargetRE, (uint64_t)Addr);
338  }
339 
341  processHALFSECTDIFFRelocation(unsigned SectionID, relocation_iterator RelI,
342  const ObjectFile &BaseTObj,
343  ObjSectionToIDMap &ObjSectionToID) {
344  const MachOObjectFile &MachO =
345  static_cast<const MachOObjectFile&>(BaseTObj);
347  MachO.getRelocation(RelI->getRawDataRefImpl());
348 
349  // For a half-diff relocation the length bits actually record whether this
350  // is a movw/movt, and whether this is arm or thumb.
351  // Bit 0 indicates movw (b0 == 0) or movt (b0 == 1).
352  // Bit 1 indicates arm (b1 == 0) or thumb (b1 == 1).
353  unsigned HalfDiffKindBits = MachO.getAnyRelocationLength(RE);
354  bool IsThumb = HalfDiffKindBits & 0x2;
355 
356  SectionEntry &Section = Sections[SectionID];
357  uint32_t RelocType = MachO.getAnyRelocationType(RE);
358  bool IsPCRel = MachO.getAnyRelocationPCRel(RE);
359  uint64_t Offset = RelI->getOffset();
360  uint8_t *LocalAddress = Section.getAddressWithOffset(Offset);
361  int64_t Immediate = readBytesUnaligned(LocalAddress, 4); // Copy the whole instruction out.
362 
363  if (IsThumb)
364  Immediate = ((Immediate & 0x0000000f) << 12) |
365  ((Immediate & 0x00000400) << 1) |
366  ((Immediate & 0x70000000) >> 20) |
367  ((Immediate & 0x00ff0000) >> 16);
368  else
369  Immediate = ((Immediate >> 4) & 0xf000) | (Immediate & 0xfff);
370 
371  ++RelI;
373  MachO.getRelocation(RelI->getRawDataRefImpl());
374  uint32_t AddrA = MachO.getScatteredRelocationValue(RE);
375  section_iterator SAI = getSectionByAddress(MachO, AddrA);
376  assert(SAI != MachO.section_end() && "Can't find section for address A");
377  uint64_t SectionABase = SAI->getAddress();
378  uint64_t SectionAOffset = AddrA - SectionABase;
379  SectionRef SectionA = *SAI;
380  bool IsCode = SectionA.isText();
381  uint32_t SectionAID = ~0U;
382  if (auto SectionAIDOrErr =
383  findOrEmitSection(MachO, SectionA, IsCode, ObjSectionToID))
384  SectionAID = *SectionAIDOrErr;
385  else
386  return SectionAIDOrErr.takeError();
387 
388  uint32_t AddrB = MachO.getScatteredRelocationValue(RE2);
389  section_iterator SBI = getSectionByAddress(MachO, AddrB);
390  assert(SBI != MachO.section_end() && "Can't find section for address B");
391  uint64_t SectionBBase = SBI->getAddress();
392  uint64_t SectionBOffset = AddrB - SectionBBase;
393  SectionRef SectionB = *SBI;
394  uint32_t SectionBID = ~0U;
395  if (auto SectionBIDOrErr =
396  findOrEmitSection(MachO, SectionB, IsCode, ObjSectionToID))
397  SectionBID = *SectionBIDOrErr;
398  else
399  return SectionBIDOrErr.takeError();
400 
401  uint32_t OtherHalf = MachO.getAnyRelocationAddress(RE2) & 0xffff;
402  unsigned Shift = (HalfDiffKindBits & 0x1) ? 16 : 0;
403  uint32_t FullImmVal = (Immediate << Shift) | (OtherHalf << (16 - Shift));
404  int64_t Addend = FullImmVal - (AddrA - AddrB);
405 
406  // addend = Encoded - Expected
407  // = Encoded - (AddrA - AddrB)
408 
409  LLVM_DEBUG(dbgs() << "Found SECTDIFF: AddrA: " << AddrA
410  << ", AddrB: " << AddrB << ", Addend: " << Addend
411  << ", SectionA ID: " << SectionAID << ", SectionAOffset: "
412  << SectionAOffset << ", SectionB ID: " << SectionBID
413  << ", SectionBOffset: " << SectionBOffset << "\n");
414  RelocationEntry R(SectionID, Offset, RelocType, Addend, SectionAID,
415  SectionAOffset, SectionBID, SectionBOffset, IsPCRel,
416  HalfDiffKindBits);
417 
418  addRelocationForSection(R, SectionAID);
419 
420  return ++RelI;
421  }
422 
423 };
424 }
425 
426 #undef DEBUG_TYPE
427 
428 #endif
unsigned getStubAlignment() override
RelocationEntry - used to represent relocations internally in the dynamic linker. ...
unsigned getAnyRelocationAddress(const MachO::any_relocation_info &RE) const
Compute iterated dominance frontiers using a linear time algorithm.
Definition: AllocatorList.h:24
unsigned getAnyRelocationPCRel(const MachO::any_relocation_info &RE) const
uint64_t readBytesUnaligned(uint8_t *Src, unsigned Size) const
Endian-aware read Read the least significant Size bytes from Src.
uint64_t getLoadAddressWithOffset(unsigned OffsetBytes) const
Return the load address of this section with an offset.
bool getPlainRelocationExternal(const MachO::any_relocation_info &RE) const
iterator find(StringRef Key)
Definition: StringMap.h:333
void dumpRelocationToResolve(const RelocationEntry &RE, uint64_t Value) const
Dump information about the relocation entry (RE) and resolved value.
This class is the base class for all object file types.
Definition: ObjectFile.h:190
unsigned getMaxStubSize() override
uint8_t * getAddress() const
void writeBytesUnaligned(uint64_t Value, uint8_t *Dst, unsigned Size) const
Endian-aware write.
bool IsPCRel
True if this is a PCRel relocation (MachO specific).
unsigned SectionID
SectionID - the section this relocation points to.
uint64_t modifyAddressBasedOnFlags(uint64_t Addr, JITSymbolFlags Flags) const override
Modify the given target address based on the given symbol flags.
Twine - A lightweight data structure for efficiently representing the concatenation of temporary valu...
Definition: Twine.h:81
Expected< relocation_iterator > processRelocationRef(unsigned SectionID, relocation_iterator RelI, const ObjectFile &BaseObjT, ObjSectionToIDMap &ObjSectionToID, StubMap &Stubs) override
Parses one or more object file relocations (some object files use relocation pairs) and stores it to ...
std::map< RelocationValueRef, uintptr_t > StubMap
Tagged union holding either a T or a Error.
Definition: CachePruning.h:23
int64_t memcpyAddend(const RelocationEntry &RE) const
This convenience method uses memcpy to extract a contiguous addend (the addend size and offset are ta...
RuntimeDyldMachOARM(RuntimeDyld::MemoryManager &MM, JITSymbolResolver &Resolver)
unsigned getAnyRelocationType(const MachO::any_relocation_info &RE) const
RuntimeDyldMachOTarget - Templated base class for generic MachO linker algorithms and data structures...
Error finalizeSection(const ObjectFile &Obj, unsigned SectionID, const SectionRef &Section)
Expected< RelocationValueRef > getRelocationValueRef(const ObjectFile &BaseTObj, const relocation_iterator &RI, const RelocationEntry &RE, ObjSectionToIDMap &ObjSectionToID)
Construct a RelocationValueRef representing the relocation target.
void addRelocationForSymbol(const RelocationEntry &RE, StringRef SymbolName)
RelocationEntry getRelocationEntry(unsigned SectionID, const ObjectFile &BaseTObj, const relocation_iterator &RI) const
Given a relocation_iterator for a non-scattered relocation, construct a RelocationEntry and fill in t...
void addRelocationForSection(const RelocationEntry &RE, unsigned SectionID)
MachO::any_relocation_info getRelocation(DataRefImpl Rel) const
Interface for looking up the initializer for a variable name, used by Init::resolveReferences.
Definition: Record.h:1774
Flags for symbols in the JIT.
Definition: JITSymbol.h:43
Symbol resolution interface.
Definition: JITSymbol.h:292
virtual JITSymbolFlags getJITSymbolFlags(const BasicSymbolRef &Sym)
Generate JITSymbolFlags from a libObject symbol.
Expected< unsigned > findOrEmitSection(const ObjectFile &Obj, const SectionRef &Section, bool IsCode, ObjSectionToIDMap &LocalSections)
Find Section in LocalSections.
static section_iterator getSectionByAddress(const MachOObjectFile &Obj, uint64_t Addr)
#define llvm_unreachable(msg)
Marks that the current location is not supposed to be reachable.
bool isRelocationScattered(const MachO::any_relocation_info &RE) const
Expected< int64_t > decodeAddend(const RelocationEntry &RE) const
static ErrorSuccess success()
Create a success value.
Definition: Error.h:321
int64_t Addend
Addend - the relocation addend encoded in the instruction itself.
std::error_code getName(StringRef &Result) const
Definition: ObjectFile.h:400
uint32_t RelType
RelType - relocation type.
Expected< relocation_iterator > processScatteredVANILLA(unsigned SectionID, relocation_iterator RelI, const ObjectFile &BaseObjT, RuntimeDyldMachO::ObjSectionToIDMap &ObjSectionToID, bool TargetIsLocalThumbFunc=false)
Process a scattered vanilla relocation.
raw_ostream & dbgs()
dbgs() - This returns a reference to a raw_ostream for debugging messages.
Definition: Debug.cpp:133
uintptr_t getStubOffset() const
bool isAddrTargetThumb(unsigned SectionID, uint64_t Offset)
unsigned getAnyRelocationLength(const MachO::any_relocation_info &RE) const
uint64_t Offset
Offset - offset into the section.
std::map< SectionRef, unsigned > ObjSectionToIDMap
uint8_t * getAddressWithOffset(unsigned OffsetBytes) const
Return the address of this section with an offset.
This is a value type class that represents a single symbol in the list of symbols in the object file...
Definition: SymbolicFile.h:99
TargetFlagsType & getTargetFlags()
Return a reference to the target-specific flags.
Definition: JITSymbol.h:119
SectionEntry - represents a section emitted into memory by the dynamic linker.
assert(ImpDefSCC.getReg()==AMDGPU::SCC &&ImpDefSCC.isDef())
LLVM Value Representation.
Definition: Value.h:73
void resolveRelocation(const RelocationEntry &RE, uint64_t Value) override
A object file specific relocation resolver.
RTDyldSymbolTable GlobalSymbolTable
Lightweight error class with error context and mandatory checking.
Definition: Error.h:156
unsigned Size
The size of this relocation (MachO specific).
section_iterator section_end() const override
#define UNIMPLEMENTED_RELOC(RelType)
Error populateIndirectSymbolPointersSection(const MachOObjectFile &Obj, const SectionRef &PTSection, unsigned PTSectionID)
JITSymbolFlags getJITSymbolFlags(const BasicSymbolRef &SR) override
Generate JITSymbolFlags from a libObject symbol.
void advanceStubOffset(unsigned StubSize)
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:49
static ARMJITSymbolFlags fromObjectSymbol(const object::BasicSymbolRef &Symbol)
Definition: JITSymbol.cpp:43
void makeValueAddendPCRel(RelocationValueRef &Value, const relocation_iterator &RI, unsigned OffsetToNextPC)
Make the RelocationValueRef addend PC-relative.
#define LLVM_DEBUG(X)
Definition: Debug.h:119
uint32_t getScatteredRelocationValue(const MachO::any_relocation_info &RE) const
iterator end()
Definition: StringMap.h:318
This is a value type class that represents a single section in the list of sections in the object fil...
Definition: ObjectFile.h:81
std::error_code inconvertibleErrorCode()
The value returned by this function can be returned from convertToErrorCode for Error values where no...
Definition: Error.cpp:73