MCSection.cpp Source File (original) (raw)

11#include "llvm/Config/llvm-config.h"

17#include

19using namespace llvm;

22 : Begin(Begin), HasInstructions(false), IsRegistered(false), IsText(IsText),

24 DummyFragment.setParent(this);

25}

28 if (!End)

29 End = Ctx.createTempSymbol("sec_end");

30 return End;

31}

35#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)

38 const {

41 OS << "MCSection Name:" << getName();

44 for (auto &F : *this) {

45 OS << '\n';

46 F.dump();

47 if (!FragToSyms)

48 continue;

49 auto It = FragToSyms->find(&F);

50 if (It == FragToSyms->end())

51 continue;

52 for (auto *Sym : It->second) {

53 OS << "\n Symbol @" << Sym->getOffset() << ' ' << Sym->getName();

54 if (Sym->isTemporary())

55 OS << " Temporary";

56 }

57 }

58}

59#endif

62 auto &S = getParent()->ContentStorage;

63 if (VarContentStart + Contents.size() > VarContentEnd) {

64 VarContentStart = S.size();

65 S.resize_for_overwrite(S.size() + Contents.size());

66 }

67 VarContentEnd = VarContentStart + Contents.size();

69}

74 auto &S = getParent()->FixupStorage;

78 auto Size = FixupEnd - FixupStart;

79 auto I = std::exchange(FixupStart, S.size());

80 S.reserve(S.size() + Size);

81 S.append(S.begin() + I, S.begin() + I + Size);

82 }

83 S.append(Fixups.begin(), Fixups.end());

84 FixupEnd = S.size();

85}

88 assert(Fixups.size() < 256 &&

89 "variable-size tail cannot have more than 256 fixups");

90 auto &S = getParent()->FixupStorage;

91 if (Fixups.size() > VarFixupSize) {

92 VarFixupStart = S.size();

93 S.resize_for_overwrite(S.size() + Fixups.size());

94 }

95 VarFixupSize = Fixups.size();

98 std::transform(Fixups.begin(), Fixups.end(), S.begin() + VarFixupStart,

100 F.setOffset(Fixed + F.getOffset());

101 return F;

102 });

103}

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

#define LLVM_UNLIKELY(EXPR)

#define LLVM_DUMP_METHOD

Mark debug helper function definitions like dump() that should not be stripped from debug builds.

PowerPC TLS Dynamic Call Fixup

This file defines the SmallVector class.

ArrayRef - Represent a constant reference to an array (0 or more elements consecutively in memory),...

size_t size() const

size - Get the array size.

Context object for machine code objects.

Encode information on a single operation to perform on a byte sequence (e.g., an encoded instruction)...

LLVM_ABI void appendFixups(ArrayRef< MCFixup > Fixups)

Definition MCSection.cpp:73

MCSection * getParent() const

LLVM_ABI void setVarFixups(ArrayRef< MCFixup > Fixups)

Definition MCSection.cpp:87

LLVM_ABI void addFixup(MCFixup Fixup)

Definition MCSection.cpp:71

size_t getFixedSize() const

LLVM_ABI void setVarContents(ArrayRef< char > Contents)

Definition MCSection.cpp:61

MCSymbol * getEndSymbol(MCContext &Ctx)

Definition MCSection.cpp:27

bool isLinkerRelaxable() const

void dump(DenseMap< const MCFragment *, SmallVector< const MCSymbol *, 0 > > *FragToSyms=nullptr) const

Definition MCSection.cpp:36

StringRef getName() const

bool hasEnded() const

Definition MCSection.cpp:33

unsigned firstLinkerRelaxable() const

MCSection(StringRef Name, bool IsText, bool IsBss, MCSymbol *Begin)

Definition MCSection.cpp:21

MCSymbol - Instances of this class represent a symbol name in the MC file, and MCSymbols are created ...

This is a 'vector' (really, a variable-sized array), optimized for the case when the array is small.

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

This class implements an extremely fast bulk output stream that can only output to a stream.

This is an optimization pass for GlobalISel generic memory operations.

LLVM_ABI raw_fd_ostream & errs()

This returns a reference to a raw_ostream for standard error.

OutputIt copy(R &&Range, OutputIt Out)