aboutsummaryrefslogtreecommitdiff
path: root/llvm/lib/MC/MCStreamer.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'llvm/lib/MC/MCStreamer.cpp')
-rw-r--r--llvm/lib/MC/MCStreamer.cpp423
1 files changed, 254 insertions, 169 deletions
diff --git a/llvm/lib/MC/MCStreamer.cpp b/llvm/lib/MC/MCStreamer.cpp
index 0ab883536779..6d3a933c96a3 100644
--- a/llvm/lib/MC/MCStreamer.cpp
+++ b/llvm/lib/MC/MCStreamer.cpp
@@ -63,7 +63,7 @@ void MCTargetStreamer::changeSection(const MCSection *CurSection,
}
void MCTargetStreamer::emitDwarfFileDirective(StringRef Directive) {
- Streamer.EmitRawText(Directive);
+ Streamer.emitRawText(Directive);
}
void MCTargetStreamer::emitValue(const MCExpr *Value) {
@@ -71,7 +71,7 @@ void MCTargetStreamer::emitValue(const MCExpr *Value) {
raw_svector_ostream OS(Str);
Value->print(OS, Streamer.getContext().getAsmInfo());
- Streamer.EmitRawText(OS.str());
+ Streamer.emitRawText(OS.str());
}
void MCTargetStreamer::emitRawBytes(StringRef Data) {
@@ -82,7 +82,7 @@ void MCTargetStreamer::emitRawBytes(StringRef Data) {
raw_svector_ostream OS(Str);
OS << Directive << (unsigned)C;
- Streamer.EmitRawText(OS.str());
+ Streamer.emitRawText(OS.str());
}
}
@@ -128,73 +128,71 @@ void MCStreamer::generateCompactUnwindEncodings(MCAsmBackend *MAB) {
/// EmitIntValue - Special case of EmitValue that avoids the client having to
/// pass in a MCExpr for constant integers.
-void MCStreamer::EmitIntValue(uint64_t Value, unsigned Size) {
+void MCStreamer::emitIntValue(uint64_t Value, unsigned Size) {
assert(1 <= Size && Size <= 8 && "Invalid size");
assert((isUIntN(8 * Size, Value) || isIntN(8 * Size, Value)) &&
"Invalid size");
- char buf[8];
- const bool isLittleEndian = Context.getAsmInfo()->isLittleEndian();
- for (unsigned i = 0; i != Size; ++i) {
- unsigned index = isLittleEndian ? i : (Size - i - 1);
- buf[i] = uint8_t(Value >> (index * 8));
- }
- EmitBytes(StringRef(buf, Size));
+ const bool IsLittleEndian = Context.getAsmInfo()->isLittleEndian();
+ uint64_t Swapped = support::endian::byte_swap(
+ Value, IsLittleEndian ? support::little : support::big);
+ unsigned Index = IsLittleEndian ? 0 : 8 - Size;
+ emitBytes(StringRef(reinterpret_cast<char *>(&Swapped) + Index, Size));
}
/// EmitULEB128IntValue - Special case of EmitULEB128Value that avoids the
/// client having to pass in a MCExpr for constant integers.
-void MCStreamer::EmitULEB128IntValue(uint64_t Value, unsigned PadTo) {
+void MCStreamer::emitULEB128IntValue(uint64_t Value, unsigned PadTo) {
SmallString<128> Tmp;
raw_svector_ostream OSE(Tmp);
encodeULEB128(Value, OSE, PadTo);
- EmitBytes(OSE.str());
+ emitBytes(OSE.str());
}
/// EmitSLEB128IntValue - Special case of EmitSLEB128Value that avoids the
/// client having to pass in a MCExpr for constant integers.
-void MCStreamer::EmitSLEB128IntValue(int64_t Value) {
+void MCStreamer::emitSLEB128IntValue(int64_t Value) {
SmallString<128> Tmp;
raw_svector_ostream OSE(Tmp);
encodeSLEB128(Value, OSE);
- EmitBytes(OSE.str());
+ emitBytes(OSE.str());
}
-void MCStreamer::EmitValue(const MCExpr *Value, unsigned Size, SMLoc Loc) {
- EmitValueImpl(Value, Size, Loc);
+void MCStreamer::emitValue(const MCExpr *Value, unsigned Size, SMLoc Loc) {
+ emitValueImpl(Value, Size, Loc);
}
-void MCStreamer::EmitSymbolValue(const MCSymbol *Sym, unsigned Size,
+void MCStreamer::emitSymbolValue(const MCSymbol *Sym, unsigned Size,
bool IsSectionRelative) {
assert((!IsSectionRelative || Size == 4) &&
"SectionRelative value requires 4-bytes");
if (!IsSectionRelative)
- EmitValueImpl(MCSymbolRefExpr::create(Sym, getContext()), Size);
+ emitValueImpl(MCSymbolRefExpr::create(Sym, getContext()), Size);
else
EmitCOFFSecRel32(Sym, /*Offset=*/0);
}
-void MCStreamer::EmitDTPRel64Value(const MCExpr *Value) {
+void MCStreamer::emitDTPRel64Value(const MCExpr *Value) {
report_fatal_error("unsupported directive in streamer");
}
-void MCStreamer::EmitDTPRel32Value(const MCExpr *Value) {
+void MCStreamer::emitDTPRel32Value(const MCExpr *Value) {
report_fatal_error("unsupported directive in streamer");
}
-void MCStreamer::EmitTPRel64Value(const MCExpr *Value) {
+void MCStreamer::emitTPRel64Value(const MCExpr *Value) {
report_fatal_error("unsupported directive in streamer");
}
-void MCStreamer::EmitTPRel32Value(const MCExpr *Value) {
+void MCStreamer::emitTPRel32Value(const MCExpr *Value) {
report_fatal_error("unsupported directive in streamer");
}
-void MCStreamer::EmitGPRel64Value(const MCExpr *Value) {
+void MCStreamer::emitGPRel64Value(const MCExpr *Value) {
report_fatal_error("unsupported directive in streamer");
}
-void MCStreamer::EmitGPRel32Value(const MCExpr *Value) {
+void MCStreamer::emitGPRel32Value(const MCExpr *Value) {
report_fatal_error("unsupported directive in streamer");
}
@@ -205,9 +203,7 @@ void MCStreamer::emitFill(uint64_t NumBytes, uint8_t FillValue) {
}
/// The implementation in this class just redirects to emitFill.
-void MCStreamer::EmitZeros(uint64_t NumBytes) {
- emitFill(NumBytes, 0);
-}
+void MCStreamer::emitZeros(uint64_t NumBytes) { emitFill(NumBytes, 0); }
Expected<unsigned>
MCStreamer::tryEmitDwarfFileDirective(unsigned FileNo, StringRef Directory,
@@ -228,17 +224,16 @@ void MCStreamer::emitDwarfFile0Directive(StringRef Directory,
Source);
}
-void MCStreamer::EmitCFIBKeyFrame() {
+void MCStreamer::emitCFIBKeyFrame() {
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
if (!CurFrame)
return;
CurFrame->IsBKeyFrame = true;
}
-void MCStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
+void MCStreamer::emitDwarfLocDirective(unsigned FileNo, unsigned Line,
unsigned Column, unsigned Flags,
- unsigned Isa,
- unsigned Discriminator,
+ unsigned Isa, unsigned Discriminator,
StringRef FileName) {
getContext().setCurrentDwarfLoc(FileNo, Line, Column, Flags, Isa,
Discriminator);
@@ -293,7 +288,7 @@ bool MCStreamer::EmitCVInlineSiteIdDirective(unsigned FunctionId,
FunctionId, IAFunc, IAFile, IALine, IACol);
}
-void MCStreamer::EmitCVLocDirective(unsigned FunctionId, unsigned FileNo,
+void MCStreamer::emitCVLocDirective(unsigned FunctionId, unsigned FileNo,
unsigned Line, unsigned Column,
bool PrologueEnd, bool IsStmt,
StringRef FileName, SMLoc Loc) {}
@@ -320,11 +315,11 @@ bool MCStreamer::checkCVLocSection(unsigned FuncId, unsigned FileNo,
return true;
}
-void MCStreamer::EmitCVLinetableDirective(unsigned FunctionId,
+void MCStreamer::emitCVLinetableDirective(unsigned FunctionId,
const MCSymbol *Begin,
const MCSymbol *End) {}
-void MCStreamer::EmitCVInlineLinetableDirective(unsigned PrimaryFunctionId,
+void MCStreamer::emitCVInlineLinetableDirective(unsigned PrimaryFunctionId,
unsigned SourceFileId,
unsigned SourceLineNum,
const MCSymbol *FnStartSym,
@@ -342,45 +337,45 @@ static void copyBytesForDefRange(SmallString<20> &BytePrefix,
memcpy(&BytePrefix[2], &DefRangeHeader, sizeof(T));
}
-void MCStreamer::EmitCVDefRangeDirective(
+void MCStreamer::emitCVDefRangeDirective(
ArrayRef<std::pair<const MCSymbol *, const MCSymbol *>> Ranges,
StringRef FixedSizePortion) {}
-void MCStreamer::EmitCVDefRangeDirective(
+void MCStreamer::emitCVDefRangeDirective(
ArrayRef<std::pair<const MCSymbol *, const MCSymbol *>> Ranges,
codeview::DefRangeRegisterRelHeader DRHdr) {
SmallString<20> BytePrefix;
copyBytesForDefRange(BytePrefix, codeview::S_DEFRANGE_REGISTER_REL, DRHdr);
- EmitCVDefRangeDirective(Ranges, BytePrefix);
+ emitCVDefRangeDirective(Ranges, BytePrefix);
}
-void MCStreamer::EmitCVDefRangeDirective(
+void MCStreamer::emitCVDefRangeDirective(
ArrayRef<std::pair<const MCSymbol *, const MCSymbol *>> Ranges,
codeview::DefRangeSubfieldRegisterHeader DRHdr) {
SmallString<20> BytePrefix;
copyBytesForDefRange(BytePrefix, codeview::S_DEFRANGE_SUBFIELD_REGISTER,
DRHdr);
- EmitCVDefRangeDirective(Ranges, BytePrefix);
+ emitCVDefRangeDirective(Ranges, BytePrefix);
}
-void MCStreamer::EmitCVDefRangeDirective(
+void MCStreamer::emitCVDefRangeDirective(
ArrayRef<std::pair<const MCSymbol *, const MCSymbol *>> Ranges,
codeview::DefRangeRegisterHeader DRHdr) {
SmallString<20> BytePrefix;
copyBytesForDefRange(BytePrefix, codeview::S_DEFRANGE_REGISTER, DRHdr);
- EmitCVDefRangeDirective(Ranges, BytePrefix);
+ emitCVDefRangeDirective(Ranges, BytePrefix);
}
-void MCStreamer::EmitCVDefRangeDirective(
+void MCStreamer::emitCVDefRangeDirective(
ArrayRef<std::pair<const MCSymbol *, const MCSymbol *>> Ranges,
codeview::DefRangeFramePointerRelHeader DRHdr) {
SmallString<20> BytePrefix;
copyBytesForDefRange(BytePrefix, codeview::S_DEFRANGE_FRAMEPOINTER_REL,
DRHdr);
- EmitCVDefRangeDirective(Ranges, BytePrefix);
+ emitCVDefRangeDirective(Ranges, BytePrefix);
}
-void MCStreamer::EmitEHSymAttributes(const MCSymbol *Symbol,
+void MCStreamer::emitEHSymAttributes(const MCSymbol *Symbol,
MCSymbol *EHSymbol) {
}
@@ -397,7 +392,7 @@ void MCStreamer::AssignFragment(MCSymbol *Symbol, MCFragment *Fragment) {
SymbolOrdering[Symbol] = 1 + SymbolOrdering.size();
}
-void MCStreamer::EmitLabel(MCSymbol *Symbol, SMLoc Loc) {
+void MCStreamer::emitLabel(MCSymbol *Symbol, SMLoc Loc) {
Symbol->redefineIfPossible();
if (!Symbol->isUndefined() || Symbol->isVariable())
@@ -415,18 +410,18 @@ void MCStreamer::EmitLabel(MCSymbol *Symbol, SMLoc Loc) {
TS->emitLabel(Symbol);
}
-void MCStreamer::EmitCFISections(bool EH, bool Debug) {
+void MCStreamer::emitCFISections(bool EH, bool Debug) {
assert(EH || Debug);
}
-void MCStreamer::EmitCFIStartProc(bool IsSimple, SMLoc Loc) {
+void MCStreamer::emitCFIStartProc(bool IsSimple, SMLoc Loc) {
if (hasUnfinishedDwarfFrameInfo())
return getContext().reportError(
Loc, "starting new .cfi frame before finishing the previous one");
MCDwarfFrameInfo Frame;
Frame.IsSimple = IsSimple;
- EmitCFIStartProcImpl(Frame);
+ emitCFIStartProcImpl(Frame);
const MCAsmInfo* MAI = Context.getAsmInfo();
if (MAI) {
@@ -441,32 +436,32 @@ void MCStreamer::EmitCFIStartProc(bool IsSimple, SMLoc Loc) {
DwarfFrameInfos.push_back(Frame);
}
-void MCStreamer::EmitCFIStartProcImpl(MCDwarfFrameInfo &Frame) {
+void MCStreamer::emitCFIStartProcImpl(MCDwarfFrameInfo &Frame) {
}
-void MCStreamer::EmitCFIEndProc() {
+void MCStreamer::emitCFIEndProc() {
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
if (!CurFrame)
return;
- EmitCFIEndProcImpl(*CurFrame);
+ emitCFIEndProcImpl(*CurFrame);
}
-void MCStreamer::EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame) {
+void MCStreamer::emitCFIEndProcImpl(MCDwarfFrameInfo &Frame) {
// Put a dummy non-null value in Frame.End to mark that this frame has been
// closed.
Frame.End = (MCSymbol *)1;
}
-MCSymbol *MCStreamer::EmitCFILabel() {
+MCSymbol *MCStreamer::emitCFILabel() {
// Return a dummy non-null value so that label fields appear filled in when
// generating textual assembly.
return (MCSymbol *)1;
}
-void MCStreamer::EmitCFIDefCfa(int64_t Register, int64_t Offset) {
- MCSymbol *Label = EmitCFILabel();
+void MCStreamer::emitCFIDefCfa(int64_t Register, int64_t Offset) {
+ MCSymbol *Label = emitCFILabel();
MCCFIInstruction Instruction =
- MCCFIInstruction::createDefCfa(Label, Register, Offset);
+ MCCFIInstruction::cfiDefCfa(Label, Register, Offset);
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
if (!CurFrame)
return;
@@ -474,18 +469,18 @@ void MCStreamer::EmitCFIDefCfa(int64_t Register, int64_t Offset) {
CurFrame->CurrentCfaRegister = static_cast<unsigned>(Register);
}
-void MCStreamer::EmitCFIDefCfaOffset(int64_t Offset) {
- MCSymbol *Label = EmitCFILabel();
+void MCStreamer::emitCFIDefCfaOffset(int64_t Offset) {
+ MCSymbol *Label = emitCFILabel();
MCCFIInstruction Instruction =
- MCCFIInstruction::createDefCfaOffset(Label, Offset);
+ MCCFIInstruction::cfiDefCfaOffset(Label, Offset);
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
if (!CurFrame)
return;
CurFrame->Instructions.push_back(Instruction);
}
-void MCStreamer::EmitCFIAdjustCfaOffset(int64_t Adjustment) {
- MCSymbol *Label = EmitCFILabel();
+void MCStreamer::emitCFIAdjustCfaOffset(int64_t Adjustment) {
+ MCSymbol *Label = emitCFILabel();
MCCFIInstruction Instruction =
MCCFIInstruction::createAdjustCfaOffset(Label, Adjustment);
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
@@ -494,8 +489,8 @@ void MCStreamer::EmitCFIAdjustCfaOffset(int64_t Adjustment) {
CurFrame->Instructions.push_back(Instruction);
}
-void MCStreamer::EmitCFIDefCfaRegister(int64_t Register) {
- MCSymbol *Label = EmitCFILabel();
+void MCStreamer::emitCFIDefCfaRegister(int64_t Register) {
+ MCSymbol *Label = emitCFILabel();
MCCFIInstruction Instruction =
MCCFIInstruction::createDefCfaRegister(Label, Register);
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
@@ -505,8 +500,8 @@ void MCStreamer::EmitCFIDefCfaRegister(int64_t Register) {
CurFrame->CurrentCfaRegister = static_cast<unsigned>(Register);
}
-void MCStreamer::EmitCFIOffset(int64_t Register, int64_t Offset) {
- MCSymbol *Label = EmitCFILabel();
+void MCStreamer::emitCFIOffset(int64_t Register, int64_t Offset) {
+ MCSymbol *Label = emitCFILabel();
MCCFIInstruction Instruction =
MCCFIInstruction::createOffset(Label, Register, Offset);
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
@@ -515,8 +510,8 @@ void MCStreamer::EmitCFIOffset(int64_t Register, int64_t Offset) {
CurFrame->Instructions.push_back(Instruction);
}
-void MCStreamer::EmitCFIRelOffset(int64_t Register, int64_t Offset) {
- MCSymbol *Label = EmitCFILabel();
+void MCStreamer::emitCFIRelOffset(int64_t Register, int64_t Offset) {
+ MCSymbol *Label = emitCFILabel();
MCCFIInstruction Instruction =
MCCFIInstruction::createRelOffset(Label, Register, Offset);
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
@@ -525,7 +520,7 @@ void MCStreamer::EmitCFIRelOffset(int64_t Register, int64_t Offset) {
CurFrame->Instructions.push_back(Instruction);
}
-void MCStreamer::EmitCFIPersonality(const MCSymbol *Sym,
+void MCStreamer::emitCFIPersonality(const MCSymbol *Sym,
unsigned Encoding) {
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
if (!CurFrame)
@@ -534,7 +529,7 @@ void MCStreamer::EmitCFIPersonality(const MCSymbol *Sym,
CurFrame->PersonalityEncoding = Encoding;
}
-void MCStreamer::EmitCFILsda(const MCSymbol *Sym, unsigned Encoding) {
+void MCStreamer::emitCFILsda(const MCSymbol *Sym, unsigned Encoding) {
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
if (!CurFrame)
return;
@@ -542,8 +537,8 @@ void MCStreamer::EmitCFILsda(const MCSymbol *Sym, unsigned Encoding) {
CurFrame->LsdaEncoding = Encoding;
}
-void MCStreamer::EmitCFIRememberState() {
- MCSymbol *Label = EmitCFILabel();
+void MCStreamer::emitCFIRememberState() {
+ MCSymbol *Label = emitCFILabel();
MCCFIInstruction Instruction = MCCFIInstruction::createRememberState(Label);
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
if (!CurFrame)
@@ -551,9 +546,9 @@ void MCStreamer::EmitCFIRememberState() {
CurFrame->Instructions.push_back(Instruction);
}
-void MCStreamer::EmitCFIRestoreState() {
+void MCStreamer::emitCFIRestoreState() {
// FIXME: Error if there is no matching cfi_remember_state.
- MCSymbol *Label = EmitCFILabel();
+ MCSymbol *Label = emitCFILabel();
MCCFIInstruction Instruction = MCCFIInstruction::createRestoreState(Label);
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
if (!CurFrame)
@@ -561,8 +556,8 @@ void MCStreamer::EmitCFIRestoreState() {
CurFrame->Instructions.push_back(Instruction);
}
-void MCStreamer::EmitCFISameValue(int64_t Register) {
- MCSymbol *Label = EmitCFILabel();
+void MCStreamer::emitCFISameValue(int64_t Register) {
+ MCSymbol *Label = emitCFILabel();
MCCFIInstruction Instruction =
MCCFIInstruction::createSameValue(Label, Register);
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
@@ -571,8 +566,8 @@ void MCStreamer::EmitCFISameValue(int64_t Register) {
CurFrame->Instructions.push_back(Instruction);
}
-void MCStreamer::EmitCFIRestore(int64_t Register) {
- MCSymbol *Label = EmitCFILabel();
+void MCStreamer::emitCFIRestore(int64_t Register) {
+ MCSymbol *Label = emitCFILabel();
MCCFIInstruction Instruction =
MCCFIInstruction::createRestore(Label, Register);
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
@@ -581,8 +576,8 @@ void MCStreamer::EmitCFIRestore(int64_t Register) {
CurFrame->Instructions.push_back(Instruction);
}
-void MCStreamer::EmitCFIEscape(StringRef Values) {
- MCSymbol *Label = EmitCFILabel();
+void MCStreamer::emitCFIEscape(StringRef Values) {
+ MCSymbol *Label = emitCFILabel();
MCCFIInstruction Instruction = MCCFIInstruction::createEscape(Label, Values);
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
if (!CurFrame)
@@ -590,8 +585,8 @@ void MCStreamer::EmitCFIEscape(StringRef Values) {
CurFrame->Instructions.push_back(Instruction);
}
-void MCStreamer::EmitCFIGnuArgsSize(int64_t Size) {
- MCSymbol *Label = EmitCFILabel();
+void MCStreamer::emitCFIGnuArgsSize(int64_t Size) {
+ MCSymbol *Label = emitCFILabel();
MCCFIInstruction Instruction =
MCCFIInstruction::createGnuArgsSize(Label, Size);
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
@@ -600,15 +595,15 @@ void MCStreamer::EmitCFIGnuArgsSize(int64_t Size) {
CurFrame->Instructions.push_back(Instruction);
}
-void MCStreamer::EmitCFISignalFrame() {
+void MCStreamer::emitCFISignalFrame() {
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
if (!CurFrame)
return;
CurFrame->IsSignalFrame = true;
}
-void MCStreamer::EmitCFIUndefined(int64_t Register) {
- MCSymbol *Label = EmitCFILabel();
+void MCStreamer::emitCFIUndefined(int64_t Register) {
+ MCSymbol *Label = emitCFILabel();
MCCFIInstruction Instruction =
MCCFIInstruction::createUndefined(Label, Register);
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
@@ -617,8 +612,8 @@ void MCStreamer::EmitCFIUndefined(int64_t Register) {
CurFrame->Instructions.push_back(Instruction);
}
-void MCStreamer::EmitCFIRegister(int64_t Register1, int64_t Register2) {
- MCSymbol *Label = EmitCFILabel();
+void MCStreamer::emitCFIRegister(int64_t Register1, int64_t Register2) {
+ MCSymbol *Label = emitCFILabel();
MCCFIInstruction Instruction =
MCCFIInstruction::createRegister(Label, Register1, Register2);
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
@@ -627,8 +622,8 @@ void MCStreamer::EmitCFIRegister(int64_t Register1, int64_t Register2) {
CurFrame->Instructions.push_back(Instruction);
}
-void MCStreamer::EmitCFIWindowSave() {
- MCSymbol *Label = EmitCFILabel();
+void MCStreamer::emitCFIWindowSave() {
+ MCSymbol *Label = emitCFILabel();
MCCFIInstruction Instruction =
MCCFIInstruction::createWindowSave(Label);
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
@@ -637,8 +632,8 @@ void MCStreamer::EmitCFIWindowSave() {
CurFrame->Instructions.push_back(Instruction);
}
-void MCStreamer::EmitCFINegateRAState() {
- MCSymbol *Label = EmitCFILabel();
+void MCStreamer::emitCFINegateRAState() {
+ MCSymbol *Label = emitCFILabel();
MCCFIInstruction Instruction = MCCFIInstruction::createNegateRAState(Label);
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
if (!CurFrame)
@@ -646,7 +641,7 @@ void MCStreamer::EmitCFINegateRAState() {
CurFrame->Instructions.push_back(Instruction);
}
-void MCStreamer::EmitCFIReturnColumn(int64_t Register) {
+void MCStreamer::emitCFIReturnColumn(int64_t Register) {
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
if (!CurFrame)
return;
@@ -677,7 +672,7 @@ void MCStreamer::EmitWinCFIStartProc(const MCSymbol *Symbol, SMLoc Loc) {
getContext().reportError(
Loc, "Starting a function before ending the previous one!");
- MCSymbol *StartProc = EmitCFILabel();
+ MCSymbol *StartProc = emitCFILabel();
WinFrameInfos.emplace_back(
std::make_unique<WinEH::FrameInfo>(Symbol, StartProc));
@@ -692,7 +687,7 @@ void MCStreamer::EmitWinCFIEndProc(SMLoc Loc) {
if (CurFrame->ChainedParent)
getContext().reportError(Loc, "Not all chained regions terminated!");
- MCSymbol *Label = EmitCFILabel();
+ MCSymbol *Label = emitCFILabel();
CurFrame->End = Label;
}
@@ -703,7 +698,7 @@ void MCStreamer::EmitWinCFIFuncletOrFuncEnd(SMLoc Loc) {
if (CurFrame->ChainedParent)
getContext().reportError(Loc, "Not all chained regions terminated!");
- MCSymbol *Label = EmitCFILabel();
+ MCSymbol *Label = emitCFILabel();
CurFrame->FuncletOrFuncEnd = Label;
}
@@ -712,7 +707,7 @@ void MCStreamer::EmitWinCFIStartChained(SMLoc Loc) {
if (!CurFrame)
return;
- MCSymbol *StartProc = EmitCFILabel();
+ MCSymbol *StartProc = emitCFILabel();
WinFrameInfos.emplace_back(std::make_unique<WinEH::FrameInfo>(
CurFrame->Function, StartProc, CurFrame));
@@ -728,7 +723,7 @@ void MCStreamer::EmitWinCFIEndChained(SMLoc Loc) {
return getContext().reportError(
Loc, "End of a chained region outside a chained region!");
- MCSymbol *Label = EmitCFILabel();
+ MCSymbol *Label = emitCFILabel();
CurFrame->End = Label;
CurrentWinFrameInfo = const_cast<WinEH::FrameInfo *>(CurFrame->ChainedParent);
@@ -784,10 +779,9 @@ static MCSection *getWinCFISection(MCContext &Context, unsigned *NextWinCFIID,
// GCC does, which is to make plain comdat selectany section named like
// ".[px]data$_Z3foov".
if (!Context.getAsmInfo()->hasCOFFAssociativeComdats()) {
- std::string SectionName =
- (MainCFISecCOFF->getSectionName() + "$" +
- TextSecCOFF->getSectionName().split('$').second)
- .str();
+ std::string SectionName = (MainCFISecCOFF->getName() + "$" +
+ TextSecCOFF->getName().split('$').second)
+ .str();
return Context.getCOFFSection(
SectionName,
MainCFISecCOFF->getCharacteristics() | COFF::IMAGE_SCN_LNK_COMDAT,
@@ -810,7 +804,7 @@ MCSection *MCStreamer::getAssociatedXDataSection(const MCSection *TextSec) {
TextSec);
}
-void MCStreamer::EmitSyntaxDirective() {}
+void MCStreamer::emitSyntaxDirective() {}
static unsigned encodeSEHRegNum(MCContext &Ctx, MCRegister Reg) {
return Ctx.getRegisterInfo()->getSEHRegNum(Reg);
@@ -821,7 +815,7 @@ void MCStreamer::EmitWinCFIPushReg(MCRegister Register, SMLoc Loc) {
if (!CurFrame)
return;
- MCSymbol *Label = EmitCFILabel();
+ MCSymbol *Label = emitCFILabel();
WinEH::Instruction Inst = Win64EH::Instruction::PushNonVol(
Label, encodeSEHRegNum(Context, Register));
@@ -842,7 +836,7 @@ void MCStreamer::EmitWinCFISetFrame(MCRegister Register, unsigned Offset,
return getContext().reportError(
Loc, "frame offset must be less than or equal to 240");
- MCSymbol *Label = EmitCFILabel();
+ MCSymbol *Label = emitCFILabel();
WinEH::Instruction Inst = Win64EH::Instruction::SetFPReg(
Label, encodeSEHRegNum(getContext(), Register), Offset);
@@ -861,7 +855,7 @@ void MCStreamer::EmitWinCFIAllocStack(unsigned Size, SMLoc Loc) {
return getContext().reportError(
Loc, "stack allocation size is not a multiple of 8");
- MCSymbol *Label = EmitCFILabel();
+ MCSymbol *Label = emitCFILabel();
WinEH::Instruction Inst = Win64EH::Instruction::Alloc(Label, Size);
CurFrame->Instructions.push_back(Inst);
@@ -877,7 +871,7 @@ void MCStreamer::EmitWinCFISaveReg(MCRegister Register, unsigned Offset,
return getContext().reportError(
Loc, "register save offset is not 8 byte aligned");
- MCSymbol *Label = EmitCFILabel();
+ MCSymbol *Label = emitCFILabel();
WinEH::Instruction Inst = Win64EH::Instruction::SaveNonVol(
Label, encodeSEHRegNum(Context, Register), Offset);
@@ -892,7 +886,7 @@ void MCStreamer::EmitWinCFISaveXMM(MCRegister Register, unsigned Offset,
if (Offset & 0x0F)
return getContext().reportError(Loc, "offset is not a multiple of 16");
- MCSymbol *Label = EmitCFILabel();
+ MCSymbol *Label = emitCFILabel();
WinEH::Instruction Inst = Win64EH::Instruction::SaveXMM(
Label, encodeSEHRegNum(Context, Register), Offset);
@@ -907,7 +901,7 @@ void MCStreamer::EmitWinCFIPushFrame(bool Code, SMLoc Loc) {
return getContext().reportError(
Loc, "If present, PushMachFrame must be the first UOP");
- MCSymbol *Label = EmitCFILabel();
+ MCSymbol *Label = emitCFILabel();
WinEH::Instruction Inst = Win64EH::Instruction::PushMachFrame(Label, Code);
CurFrame->Instructions.push_back(Inst);
@@ -918,7 +912,7 @@ void MCStreamer::EmitWinCFIEndProlog(SMLoc Loc) {
if (!CurFrame)
return;
- MCSymbol *Label = EmitCFILabel();
+ MCSymbol *Label = emitCFILabel();
CurFrame->PrologEnd = Label;
}
@@ -936,7 +930,7 @@ void MCStreamer::EmitCOFFImgRel32(MCSymbol const *Symbol, int64_t Offset) {}
/// EmitRawText - If this file is backed by an assembly streamer, this dumps
/// the specified string in the output .s file. This capability is
/// indicated by the hasRawTextSupport() predicate.
-void MCStreamer::EmitRawTextImpl(StringRef String) {
+void MCStreamer::emitRawTextImpl(StringRef String) {
// This is not llvm_unreachable for the sake of out of tree backend
// developers who may not have assembly streamers and should serve as a
// reminder to not accidentally call EmitRawText in the absence of such.
@@ -945,9 +939,9 @@ void MCStreamer::EmitRawTextImpl(StringRef String) {
"implementation)");
}
-void MCStreamer::EmitRawText(const Twine &T) {
+void MCStreamer::emitRawText(const Twine &T) {
SmallString<128> Str;
- EmitRawTextImpl(T.toStringRef(Str));
+ emitRawTextImpl(T.toStringRef(Str));
}
void MCStreamer::EmitWindowsUnwindTables() {
@@ -964,10 +958,10 @@ void MCStreamer::Finish() {
if (TS)
TS->finish();
- FinishImpl();
+ finishImpl();
}
-void MCStreamer::EmitAssignment(MCSymbol *Symbol, const MCExpr *Value) {
+void MCStreamer::emitAssignment(MCSymbol *Symbol, const MCExpr *Value) {
visitUsedExpr(*Value);
Symbol->setVariableValue(Value);
@@ -1012,7 +1006,7 @@ void MCStreamer::visitUsedExpr(const MCExpr &Expr) {
}
}
-void MCStreamer::EmitInstruction(const MCInst &Inst, const MCSubtargetInfo &) {
+void MCStreamer::emitInstruction(const MCInst &Inst, const MCSubtargetInfo &) {
// Scan for values.
for (unsigned i = Inst.getNumOperands(); i--;)
if (Inst.getOperand(i).isExpr())
@@ -1028,14 +1022,14 @@ void MCStreamer::emitAbsoluteSymbolDiff(const MCSymbol *Hi, const MCSymbol *Lo,
const MCAsmInfo *MAI = Context.getAsmInfo();
if (!MAI->doesSetDirectiveSuppressReloc()) {
- EmitValue(Diff, Size);
+ emitValue(Diff, Size);
return;
}
// Otherwise, emit with .set (aka assignment).
MCSymbol *SetLabel = Context.createTempSymbol("set", true);
- EmitAssignment(SetLabel, Diff);
- EmitSymbolValue(SetLabel, Size);
+ emitAssignment(SetLabel, Diff);
+ emitSymbolValue(SetLabel, Size);
}
void MCStreamer::emitAbsoluteSymbolDiffAsULEB128(const MCSymbol *Hi,
@@ -1045,72 +1039,86 @@ void MCStreamer::emitAbsoluteSymbolDiffAsULEB128(const MCSymbol *Hi,
MCBinaryExpr::createSub(MCSymbolRefExpr::create(Hi, Context),
MCSymbolRefExpr::create(Lo, Context), Context);
- EmitULEB128Value(Diff);
+ emitULEB128Value(Diff);
}
-void MCStreamer::EmitAssemblerFlag(MCAssemblerFlag Flag) {}
-void MCStreamer::EmitThumbFunc(MCSymbol *Func) {}
-void MCStreamer::EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) {}
+void MCStreamer::emitAssemblerFlag(MCAssemblerFlag Flag) {}
+void MCStreamer::emitThumbFunc(MCSymbol *Func) {}
+void MCStreamer::emitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) {}
void MCStreamer::BeginCOFFSymbolDef(const MCSymbol *Symbol) {
llvm_unreachable("this directive only supported on COFF targets");
}
void MCStreamer::EndCOFFSymbolDef() {
llvm_unreachable("this directive only supported on COFF targets");
}
-void MCStreamer::EmitFileDirective(StringRef Filename) {}
+void MCStreamer::emitFileDirective(StringRef Filename) {}
void MCStreamer::EmitCOFFSymbolStorageClass(int StorageClass) {
llvm_unreachable("this directive only supported on COFF targets");
}
void MCStreamer::EmitCOFFSymbolType(int Type) {
llvm_unreachable("this directive only supported on COFF targets");
}
-void MCStreamer::EmitXCOFFLocalCommonSymbol(MCSymbol *LabelSym, uint64_t Size,
+void MCStreamer::emitXCOFFLocalCommonSymbol(MCSymbol *LabelSym, uint64_t Size,
MCSymbol *CsectSym,
unsigned ByteAlign) {
llvm_unreachable("this directive only supported on XCOFF targets");
}
+
+void MCStreamer::emitXCOFFSymbolLinkageWithVisibility(MCSymbol *Symbol,
+ MCSymbolAttr Linkage,
+ MCSymbolAttr Visibility) {
+ llvm_unreachable("emitXCOFFSymbolLinkageWithVisibility is only supported on "
+ "XCOFF targets");
+}
+
+void MCStreamer::emitXCOFFRenameDirective(const MCSymbol *Name,
+ StringRef Rename) {
+ llvm_unreachable("emitXCOFFRenameDirective is only supported on "
+ "XCOFF targets");
+}
+
void MCStreamer::emitELFSize(MCSymbol *Symbol, const MCExpr *Value) {}
void MCStreamer::emitELFSymverDirective(StringRef AliasName,
const MCSymbol *Aliasee) {}
-void MCStreamer::EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
+void MCStreamer::emitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
unsigned ByteAlignment) {}
-void MCStreamer::EmitTBSSSymbol(MCSection *Section, MCSymbol *Symbol,
+void MCStreamer::emitTBSSSymbol(MCSection *Section, MCSymbol *Symbol,
uint64_t Size, unsigned ByteAlignment) {}
-void MCStreamer::ChangeSection(MCSection *, const MCExpr *) {}
-void MCStreamer::EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol) {}
-void MCStreamer::EmitBytes(StringRef Data) {}
-void MCStreamer::EmitBinaryData(StringRef Data) { EmitBytes(Data); }
-void MCStreamer::EmitValueImpl(const MCExpr *Value, unsigned Size, SMLoc Loc) {
+void MCStreamer::changeSection(MCSection *, const MCExpr *) {}
+void MCStreamer::emitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol) {}
+void MCStreamer::emitBytes(StringRef Data) {}
+void MCStreamer::emitBinaryData(StringRef Data) { emitBytes(Data); }
+void MCStreamer::emitValueImpl(const MCExpr *Value, unsigned Size, SMLoc Loc) {
visitUsedExpr(*Value);
}
-void MCStreamer::EmitULEB128Value(const MCExpr *Value) {}
-void MCStreamer::EmitSLEB128Value(const MCExpr *Value) {}
+void MCStreamer::emitULEB128Value(const MCExpr *Value) {}
+void MCStreamer::emitSLEB128Value(const MCExpr *Value) {}
void MCStreamer::emitFill(const MCExpr &NumBytes, uint64_t Value, SMLoc Loc) {}
void MCStreamer::emitFill(const MCExpr &NumValues, int64_t Size, int64_t Expr,
SMLoc Loc) {}
-void MCStreamer::EmitValueToAlignment(unsigned ByteAlignment, int64_t Value,
+void MCStreamer::emitValueToAlignment(unsigned ByteAlignment, int64_t Value,
unsigned ValueSize,
unsigned MaxBytesToEmit) {}
-void MCStreamer::EmitCodeAlignment(unsigned ByteAlignment,
+void MCStreamer::emitCodeAlignment(unsigned ByteAlignment,
unsigned MaxBytesToEmit) {}
void MCStreamer::emitValueToOffset(const MCExpr *Offset, unsigned char Value,
SMLoc Loc) {}
-void MCStreamer::EmitBundleAlignMode(unsigned AlignPow2) {}
-void MCStreamer::EmitBundleLock(bool AlignToEnd) {}
-void MCStreamer::FinishImpl() {}
-void MCStreamer::EmitBundleUnlock() {}
+void MCStreamer::emitBundleAlignMode(unsigned AlignPow2) {}
+void MCStreamer::emitBundleLock(bool AlignToEnd) {}
+void MCStreamer::finishImpl() {}
+void MCStreamer::emitBundleUnlock() {}
void MCStreamer::SwitchSection(MCSection *Section, const MCExpr *Subsection) {
assert(Section && "Cannot switch to a null section!");
MCSectionSubPair curSection = SectionStack.back().first;
SectionStack.back().second = curSection;
if (MCSectionSubPair(Section, Subsection) != curSection) {
- ChangeSection(Section, Subsection);
+ changeSection(Section, Subsection);
SectionStack.back().first = MCSectionSubPair(Section, Subsection);
assert(!Section->hasEnded() && "Section already ended");
MCSymbol *Sym = Section->getBeginSymbol();
if (Sym && !Sym->isInSection())
- EmitLabel(Sym);
+ emitLabel(Sym);
}
}
@@ -1122,11 +1130,84 @@ MCSymbol *MCStreamer::endSection(MCSection *Section) {
return Sym;
SwitchSection(Section);
- EmitLabel(Sym);
+ emitLabel(Sym);
return Sym;
}
-void MCStreamer::EmitVersionForTarget(const Triple &Target,
+static VersionTuple
+targetVersionOrMinimumSupportedOSVersion(const Triple &Target,
+ VersionTuple TargetVersion) {
+ VersionTuple Min = Target.getMinimumSupportedOSVersion();
+ return !Min.empty() && Min > TargetVersion ? Min : TargetVersion;
+}
+
+static MCVersionMinType
+getMachoVersionMinLoadCommandType(const Triple &Target) {
+ assert(Target.isOSDarwin() && "expected a darwin OS");
+ switch (Target.getOS()) {
+ case Triple::MacOSX:
+ case Triple::Darwin:
+ return MCVM_OSXVersionMin;
+ case Triple::IOS:
+ assert(!Target.isMacCatalystEnvironment() &&
+ "mac Catalyst should use LC_BUILD_VERSION");
+ return MCVM_IOSVersionMin;
+ case Triple::TvOS:
+ return MCVM_TvOSVersionMin;
+ case Triple::WatchOS:
+ return MCVM_WatchOSVersionMin;
+ default:
+ break;
+ }
+ llvm_unreachable("unexpected OS type");
+}
+
+static VersionTuple getMachoBuildVersionSupportedOS(const Triple &Target) {
+ assert(Target.isOSDarwin() && "expected a darwin OS");
+ switch (Target.getOS()) {
+ case Triple::MacOSX:
+ case Triple::Darwin:
+ return VersionTuple(10, 14);
+ case Triple::IOS:
+ // Mac Catalyst always uses the build version load command.
+ if (Target.isMacCatalystEnvironment())
+ return VersionTuple();
+ LLVM_FALLTHROUGH;
+ case Triple::TvOS:
+ return VersionTuple(12);
+ case Triple::WatchOS:
+ return VersionTuple(5);
+ default:
+ break;
+ }
+ llvm_unreachable("unexpected OS type");
+}
+
+static MachO::PlatformType
+getMachoBuildVersionPlatformType(const Triple &Target) {
+ assert(Target.isOSDarwin() && "expected a darwin OS");
+ switch (Target.getOS()) {
+ case Triple::MacOSX:
+ case Triple::Darwin:
+ return MachO::PLATFORM_MACOS;
+ case Triple::IOS:
+ if (Target.isMacCatalystEnvironment())
+ return MachO::PLATFORM_MACCATALYST;
+ return Target.isSimulatorEnvironment() ? MachO::PLATFORM_IOSSIMULATOR
+ : MachO::PLATFORM_IOS;
+ case Triple::TvOS:
+ return Target.isSimulatorEnvironment() ? MachO::PLATFORM_TVOSSIMULATOR
+ : MachO::PLATFORM_TVOS;
+ case Triple::WatchOS:
+ return Target.isSimulatorEnvironment() ? MachO::PLATFORM_WATCHOSSIMULATOR
+ : MachO::PLATFORM_WATCHOS;
+ default:
+ break;
+ }
+ llvm_unreachable("unexpected OS type");
+}
+
+void MCStreamer::emitVersionForTarget(const Triple &Target,
const VersionTuple &SDKVersion) {
if (!Target.isOSBinFormatMachO() || !Target.isOSDarwin())
return;
@@ -1134,33 +1215,37 @@ void MCStreamer::EmitVersionForTarget(const Triple &Target,
if (Target.getOSMajorVersion() == 0)
return;
- unsigned Major;
- unsigned Minor;
- unsigned Update;
- if (Target.isMacCatalystEnvironment()) {
- // Mac Catalyst always uses the build version load command.
+ unsigned Major = 0;
+ unsigned Minor = 0;
+ unsigned Update = 0;
+ switch (Target.getOS()) {
+ case Triple::MacOSX:
+ case Triple::Darwin:
+ Target.getMacOSXVersion(Major, Minor, Update);
+ break;
+ case Triple::IOS:
+ case Triple::TvOS:
Target.getiOSVersion(Major, Minor, Update);
- assert(Major && "A non-zero major version is expected");
- EmitBuildVersion(MachO::PLATFORM_MACCATALYST, Major, Minor, Update,
- SDKVersion);
- return;
- }
-
- MCVersionMinType VersionType;
- if (Target.isWatchOS()) {
- VersionType = MCVM_WatchOSVersionMin;
+ break;
+ case Triple::WatchOS:
Target.getWatchOSVersion(Major, Minor, Update);
- } else if (Target.isTvOS()) {
- VersionType = MCVM_TvOSVersionMin;
- Target.getiOSVersion(Major, Minor, Update);
- } else if (Target.isMacOSX()) {
- VersionType = MCVM_OSXVersionMin;
- if (!Target.getMacOSXVersion(Major, Minor, Update))
- Major = 0;
- } else {
- VersionType = MCVM_IOSVersionMin;
- Target.getiOSVersion(Major, Minor, Update);
+ break;
+ default:
+ llvm_unreachable("unexpected OS type");
}
- if (Major != 0)
- EmitVersionMin(VersionType, Major, Minor, Update, SDKVersion);
+ assert(Major != 0 && "A non-zero major version is expected");
+ auto LinkedTargetVersion = targetVersionOrMinimumSupportedOSVersion(
+ Target, VersionTuple(Major, Minor, Update));
+ auto BuildVersionOSVersion = getMachoBuildVersionSupportedOS(Target);
+ if (BuildVersionOSVersion.empty() ||
+ LinkedTargetVersion >= BuildVersionOSVersion)
+ return emitBuildVersion(getMachoBuildVersionPlatformType(Target),
+ LinkedTargetVersion.getMajor(),
+ *LinkedTargetVersion.getMinor(),
+ *LinkedTargetVersion.getSubminor(), SDKVersion);
+
+ emitVersionMin(getMachoVersionMinLoadCommandType(Target),
+ LinkedTargetVersion.getMajor(),
+ *LinkedTargetVersion.getMinor(),
+ *LinkedTargetVersion.getSubminor(), SDKVersion);
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-07-11 17:32:48 +0000