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Diffstat (limited to 'lib/MC/MCParser/COFFAsmParser.cpp')
-rw-r--r--lib/MC/MCParser/COFFAsmParser.cpp92
1 files changed, 37 insertions, 55 deletions
diff --git a/lib/MC/MCParser/COFFAsmParser.cpp b/lib/MC/MCParser/COFFAsmParser.cpp
index decf01c..5ecf9e5 100644
--- a/lib/MC/MCParser/COFFAsmParser.cpp
+++ b/lib/MC/MCParser/COFFAsmParser.cpp
@@ -13,6 +13,7 @@
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCExpr.h"
+#include "llvm/MC/MCObjectFileInfo.h"
#include "llvm/MC/MCParser/MCAsmLexer.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCSectionCOFF.h"
@@ -37,7 +38,7 @@ class COFFAsmParser : public MCAsmParserExtension {
bool ParseSectionSwitch(StringRef Section, unsigned Characteristics,
SectionKind Kind, StringRef COMDATSymName,
- COFF::COMDATType Type, const MCSectionCOFF *Assoc);
+ COFF::COMDATType Type);
bool ParseSectionName(StringRef &SectionName);
bool ParseSectionFlags(StringRef FlagsString, unsigned* Flags);
@@ -117,8 +118,7 @@ class COFFAsmParser : public MCAsmParserExtension {
bool ParseDirectiveEndef(StringRef, SMLoc);
bool ParseDirectiveSecRel32(StringRef, SMLoc);
bool ParseDirectiveSecIdx(StringRef, SMLoc);
- bool parseCOMDATTypeAndAssoc(COFF::COMDATType &Type,
- const MCSectionCOFF *&Assoc);
+ bool parseCOMDATType(COFF::COMDATType &Type);
bool ParseDirectiveLinkOnce(StringRef, SMLoc);
// Win64 EH directives.
@@ -170,8 +170,8 @@ bool COFFAsmParser::ParseSectionFlags(StringRef FlagsString, unsigned* Flags) {
bool ReadOnlyRemoved = false;
unsigned SecFlags = None;
- for (unsigned i = 0; i < FlagsString.size(); ++i) {
- switch (FlagsString[i]) {
+ for (char FlagChar : FlagsString) {
+ switch (FlagChar) {
case 'a':
// Ignored.
break;
@@ -292,22 +292,20 @@ bool COFFAsmParser::ParseDirectiveSymbolAttribute(StringRef Directive, SMLoc) {
bool COFFAsmParser::ParseSectionSwitch(StringRef Section,
unsigned Characteristics,
SectionKind Kind) {
- return ParseSectionSwitch(Section, Characteristics, Kind, "",
- COFF::IMAGE_COMDAT_SELECT_ANY, nullptr);
+ return ParseSectionSwitch(Section, Characteristics, Kind, "", (COFF::COMDATType)0);
}
bool COFFAsmParser::ParseSectionSwitch(StringRef Section,
unsigned Characteristics,
SectionKind Kind,
StringRef COMDATSymName,
- COFF::COMDATType Type,
- const MCSectionCOFF *Assoc) {
+ COFF::COMDATType Type) {
if (getLexer().isNot(AsmToken::EndOfStatement))
return TokError("unexpected token in section switching directive");
Lex();
getStreamer().SwitchSection(getContext().getCOFFSection(
- Section, Characteristics, Kind, COMDATSymName, Type, Assoc));
+ Section, Characteristics, Kind, COMDATSymName, Type));
return false;
}
@@ -358,15 +356,15 @@ bool COFFAsmParser::ParseDirectiveSection(StringRef, SMLoc) {
return true;
}
- COFF::COMDATType Type = COFF::IMAGE_COMDAT_SELECT_ANY;
- const MCSectionCOFF *Assoc = nullptr;
+ COFF::COMDATType Type = (COFF::COMDATType)0;
StringRef COMDATSymName;
if (getLexer().is(AsmToken::Comma)) {
+ Type = COFF::IMAGE_COMDAT_SELECT_ANY;;
Lex();
Flags |= COFF::IMAGE_SCN_LNK_COMDAT;
- if (parseCOMDATTypeAndAssoc(Type, Assoc))
+ if (parseCOMDATType(Type))
return true;
if (getLexer().isNot(AsmToken::Comma))
@@ -381,7 +379,12 @@ bool COFFAsmParser::ParseDirectiveSection(StringRef, SMLoc) {
return TokError("unexpected token in directive");
SectionKind Kind = computeSectionKind(Flags);
- ParseSectionSwitch(SectionName, Flags, Kind, COMDATSymName, Type, Assoc);
+ if (Kind.isText()) {
+ const Triple &T = getContext().getObjectFileInfo()->getTargetTriple();
+ if (T.getArch() == Triple::arm || T.getArch() == Triple::thumb)
+ Flags |= COFF::IMAGE_SCN_MEM_16BIT;
+ }
+ ParseSectionSwitch(SectionName, Flags, Kind, COMDATSymName, Type);
return false;
}
@@ -461,9 +464,8 @@ bool COFFAsmParser::ParseDirectiveSecIdx(StringRef, SMLoc) {
return false;
}
-/// ::= [ identifier [ identifier ] ]
-bool COFFAsmParser::parseCOMDATTypeAndAssoc(COFF::COMDATType &Type,
- const MCSectionCOFF *&Assoc) {
+/// ::= [ identifier ]
+bool COFFAsmParser::parseCOMDATType(COFF::COMDATType &Type) {
StringRef TypeId = getTok().getIdentifier();
Type = StringSwitch<COFF::COMDATType>(TypeId)
@@ -481,48 +483,28 @@ bool COFFAsmParser::parseCOMDATTypeAndAssoc(COFF::COMDATType &Type,
Lex();
- if (Type == COFF::IMAGE_COMDAT_SELECT_ASSOCIATIVE) {
- SMLoc Loc = getTok().getLoc();
- StringRef AssocName;
- if (ParseSectionName(AssocName))
- return TokError("expected associated section name");
-
- Assoc = static_cast<const MCSectionCOFF*>(
- getContext().getCOFFSection(AssocName));
- if (!Assoc)
- return Error(Loc, "cannot associate unknown section '" + AssocName + "'");
- if (!(Assoc->getCharacteristics() & COFF::IMAGE_SCN_LNK_COMDAT))
- return Error(Loc, "associated section must be a COMDAT section");
- if (Assoc->getSelection() == COFF::IMAGE_COMDAT_SELECT_ASSOCIATIVE)
- return Error(Loc, "associated section cannot be itself associative");
- }
-
return false;
}
/// ParseDirectiveLinkOnce
-/// ::= .linkonce [ identifier [ identifier ] ]
+/// ::= .linkonce [ identifier ]
bool COFFAsmParser::ParseDirectiveLinkOnce(StringRef, SMLoc Loc) {
COFF::COMDATType Type = COFF::IMAGE_COMDAT_SELECT_ANY;
- const MCSectionCOFF *Assoc = nullptr;
if (getLexer().is(AsmToken::Identifier))
- if (parseCOMDATTypeAndAssoc(Type, Assoc))
+ if (parseCOMDATType(Type))
return true;
const MCSectionCOFF *Current = static_cast<const MCSectionCOFF*>(
getStreamer().getCurrentSection().first);
-
- if (Type == COFF::IMAGE_COMDAT_SELECT_ASSOCIATIVE) {
- if (Assoc == Current)
- return Error(Loc, "cannot associate a section with itself");
- }
+ if (Type == COFF::IMAGE_COMDAT_SELECT_ASSOCIATIVE)
+ return Error(Loc, "cannot make section associative with .linkonce");
if (Current->getCharacteristics() & COFF::IMAGE_SCN_LNK_COMDAT)
return Error(Loc, Twine("section '") + Current->getSectionName() +
"' is already linkonce");
- Current->setSelection(Type, Assoc);
+ Current->setSelection(Type);
if (getLexer().isNot(AsmToken::EndOfStatement))
return TokError("unexpected token in directive");
@@ -541,25 +523,25 @@ bool COFFAsmParser::ParseSEHDirectiveStartProc(StringRef, SMLoc) {
MCSymbol *Symbol = getContext().GetOrCreateSymbol(SymbolID);
Lex();
- getStreamer().EmitWin64EHStartProc(Symbol);
+ getStreamer().EmitWinCFIStartProc(Symbol);
return false;
}
bool COFFAsmParser::ParseSEHDirectiveEndProc(StringRef, SMLoc) {
Lex();
- getStreamer().EmitWin64EHEndProc();
+ getStreamer().EmitWinCFIEndProc();
return false;
}
bool COFFAsmParser::ParseSEHDirectiveStartChained(StringRef, SMLoc) {
Lex();
- getStreamer().EmitWin64EHStartChained();
+ getStreamer().EmitWinCFIStartChained();
return false;
}
bool COFFAsmParser::ParseSEHDirectiveEndChained(StringRef, SMLoc) {
Lex();
- getStreamer().EmitWin64EHEndChained();
+ getStreamer().EmitWinCFIEndChained();
return false;
}
@@ -585,13 +567,13 @@ bool COFFAsmParser::ParseSEHDirectiveHandler(StringRef, SMLoc) {
MCSymbol *handler = getContext().GetOrCreateSymbol(SymbolID);
Lex();
- getStreamer().EmitWin64EHHandler(handler, unwind, except);
+ getStreamer().EmitWinEHHandler(handler, unwind, except);
return false;
}
bool COFFAsmParser::ParseSEHDirectiveHandlerData(StringRef, SMLoc) {
Lex();
- getStreamer().EmitWin64EHHandlerData();
+ getStreamer().EmitWinEHHandlerData();
return false;
}
@@ -604,7 +586,7 @@ bool COFFAsmParser::ParseSEHDirectivePushReg(StringRef, SMLoc L) {
return TokError("unexpected token in directive");
Lex();
- getStreamer().EmitWin64EHPushReg(Reg);
+ getStreamer().EmitWinCFIPushReg(Reg);
return false;
}
@@ -628,7 +610,7 @@ bool COFFAsmParser::ParseSEHDirectiveSetFrame(StringRef, SMLoc L) {
return TokError("unexpected token in directive");
Lex();
- getStreamer().EmitWin64EHSetFrame(Reg, Off);
+ getStreamer().EmitWinCFISetFrame(Reg, Off);
return false;
}
@@ -645,7 +627,7 @@ bool COFFAsmParser::ParseSEHDirectiveAllocStack(StringRef, SMLoc) {
return TokError("unexpected token in directive");
Lex();
- getStreamer().EmitWin64EHAllocStack(Size);
+ getStreamer().EmitWinCFIAllocStack(Size);
return false;
}
@@ -670,7 +652,7 @@ bool COFFAsmParser::ParseSEHDirectiveSaveReg(StringRef, SMLoc L) {
Lex();
// FIXME: Err on %xmm* registers
- getStreamer().EmitWin64EHSaveReg(Reg, Off);
+ getStreamer().EmitWinCFISaveReg(Reg, Off);
return false;
}
@@ -697,7 +679,7 @@ bool COFFAsmParser::ParseSEHDirectiveSaveXMM(StringRef, SMLoc L) {
Lex();
// FIXME: Err on non-%xmm* registers
- getStreamer().EmitWin64EHSaveXMM(Reg, Off);
+ getStreamer().EmitWinCFISaveXMM(Reg, Off);
return false;
}
@@ -718,13 +700,13 @@ bool COFFAsmParser::ParseSEHDirectivePushFrame(StringRef, SMLoc) {
return TokError("unexpected token in directive");
Lex();
- getStreamer().EmitWin64EHPushFrame(Code);
+ getStreamer().EmitWinCFIPushFrame(Code);
return false;
}
bool COFFAsmParser::ParseSEHDirectiveEndProlog(StringRef, SMLoc) {
Lex();
- getStreamer().EmitWin64EHEndProlog();
+ getStreamer().EmitWinCFIEndProlog();
return false;
}
generated by cgit v1.1 at 2024-05-17 22:18:32 +0000