namespace {
-
/// \brief Helper class for storing information about an active macro
/// instantiation.
struct MacroInstantiation {
SourceMgr &SrcMgr;
SourceMgr::DiagHandlerTy SavedDiagHandler;
void *SavedDiagContext;
- MCAsmParserExtension *GenericParser;
MCAsmParserExtension *PlatformParser;
/// This is the current buffer index we're lexing from as managed by the
AsmCond TheCondState;
std::vector<AsmCond> TheCondStack;
- /// DirectiveMap - This is a table handlers for directives. Each handler is
- /// invoked after the directive identifier is read and is responsible for
- /// parsing and validating the rest of the directive. The handler is passed
- /// in the directive name and the location of the directive keyword.
- StringMap<std::pair<MCAsmParserExtension*, DirectiveHandler> > DirectiveMap;
+ /// ExtensionDirectiveMap - maps directive names to handler methods in parser
+ /// extensions. Extensions register themselves in this map by calling
+ /// AddDirectiveHandler.
+ typedef std::pair<MCAsmParserExtension*, DirectiveHandler>
+ ExtensionDirectiveHandler;
+ StringMap<ExtensionDirectiveHandler> ExtensionDirectiveMap;
/// MacroMap - Map of currently defined macros.
StringMap<MCAsmMacro*> MacroMap;
virtual void AddDirectiveHandler(MCAsmParserExtension *Object,
StringRef Directive,
DirectiveHandler Handler) {
- DirectiveMap[Directive] = std::make_pair(Object, Handler);
+ ExtensionDirectiveMap[Directive] = std::make_pair(Object, Handler);
}
public:
bool ParseParenExpr(const MCExpr *&Res, SMLoc &EndLoc);
bool ParseBracketExpr(const MCExpr *&Res, SMLoc &EndLoc);
- // Directive Parsing.
+ bool ParseRegisterOrRegisterNumber(int64_t &Register, SMLoc DirectiveLoc);
+ // Generic (target and platform independent) directive parsing.
enum DirectiveKind {
DK_NO_DIRECTIVE, // Placeholder
DK_SET, DK_EQU, DK_EQUIV, DK_ASCII, DK_ASCIZ, DK_STRING, DK_BYTE, DK_SHORT,
DK_WEAK_DEF_CAN_BE_HIDDEN, DK_COMM, DK_COMMON, DK_LCOMM, DK_ABORT,
DK_INCLUDE, DK_INCBIN, DK_CODE16, DK_CODE16GCC, DK_REPT, DK_IRP, DK_IRPC,
DK_IF, DK_IFB, DK_IFNB, DK_IFC, DK_IFNC, DK_IFDEF, DK_IFNDEF, DK_IFNOTDEF,
- DK_ELSEIF, DK_ELSE, DK_ENDIF
+ DK_ELSEIF, DK_ELSE, DK_ENDIF,
+ DK_SPACE, DK_SKIP, DK_FILE, DK_LINE, DK_LOC, DK_STABS,
+ DK_CFI_SECTIONS, DK_CFI_STARTPROC, DK_CFI_ENDPROC, DK_CFI_DEF_CFA,
+ DK_CFI_DEF_CFA_OFFSET, DK_CFI_ADJUST_CFA_OFFSET, DK_CFI_DEF_CFA_REGISTER,
+ DK_CFI_OFFSET, DK_CFI_REL_OFFSET, DK_CFI_PERSONALITY, DK_CFI_LSDA,
+ DK_CFI_REMEMBER_STATE, DK_CFI_RESTORE_STATE, DK_CFI_SAME_VALUE,
+ DK_CFI_RESTORE, DK_CFI_ESCAPE, DK_CFI_SIGNAL_FRAME, DK_CFI_UNDEFINED,
+ DK_CFI_REGISTER,
+ DK_MACROS_ON, DK_MACROS_OFF, DK_MACRO, DK_ENDM, DK_ENDMACRO, DK_PURGEM,
+ DK_SLEB128, DK_ULEB128
};
- StringMap<DirectiveKind> DirectiveKindMapping;
+ /// DirectiveKindMap - Maps directive name --> DirectiveKind enum, for
+ /// directives parsed by this class.
+ StringMap<DirectiveKind> DirectiveKindMap;
// ".ascii", ".asciz", ".string"
bool ParseDirectiveAscii(StringRef IDVal, bool ZeroTerminated);
// ".align{,32}", ".p2align{,w,l}"
bool ParseDirectiveAlign(bool IsPow2, unsigned ValueSize);
+ // ".file", ".line", ".loc", ".stabs"
+ bool ParseDirectiveFile(SMLoc DirectiveLoc);
+ bool ParseDirectiveLine();
+ bool ParseDirectiveLoc();
+ bool ParseDirectiveStabs();
+
+ // .cfi directives
+ bool ParseDirectiveCFIRegister(SMLoc DirectiveLoc);
+ bool ParseDirectiveCFISections();
+ bool ParseDirectiveCFIStartProc();
+ bool ParseDirectiveCFIEndProc();
+ bool ParseDirectiveCFIDefCfaOffset();
+ bool ParseDirectiveCFIDefCfa(SMLoc DirectiveLoc);
+ bool ParseDirectiveCFIAdjustCfaOffset();
+ bool ParseDirectiveCFIDefCfaRegister(SMLoc DirectiveLoc);
+ bool ParseDirectiveCFIOffset(SMLoc DirectiveLoc);
+ bool ParseDirectiveCFIRelOffset(SMLoc DirectiveLoc);
+ bool ParseDirectiveCFIPersonalityOrLsda(bool IsPersonality);
+ bool ParseDirectiveCFIRememberState();
+ bool ParseDirectiveCFIRestoreState();
+ bool ParseDirectiveCFISameValue(SMLoc DirectiveLoc);
+ bool ParseDirectiveCFIRestore(SMLoc DirectiveLoc);
+ bool ParseDirectiveCFIEscape();
+ bool ParseDirectiveCFISignalFrame();
+ bool ParseDirectiveCFIUndefined(SMLoc DirectiveLoc);
+
+ // macro directives
+ bool ParseDirectivePurgeMacro(SMLoc DirectiveLoc);
+ bool ParseDirectiveEndMacro(StringRef Directive);
+ bool ParseDirectiveMacro(SMLoc DirectiveLoc);
+ bool ParseDirectiveMacrosOnOff(StringRef Directive);
+
// ".bundle_align_mode"
bool ParseDirectiveBundleAlignMode();
// ".bundle_lock"
// ".bundle_unlock"
bool ParseDirectiveBundleUnlock();
+ // ".space", ".skip"
+ bool ParseDirectiveSpace(StringRef IDVal);
+
+ // .sleb128 (Signed=true) and .uleb128 (Signed=false)
+ bool ParseDirectiveLEB128(bool Signed);
+
/// ParseDirectiveSymbolAttribute - Parse a directive like ".globl" which
/// accepts a single symbol (which should be a label or an external).
bool ParseDirectiveSymbolAttribute(MCSymbolAttr Attr);
// "_emit"
bool ParseDirectiveEmit(SMLoc DirectiveLoc, ParseStatementInfo &Info);
- void initializeDirectiveKindMapping();
-};
-
-/// \brief Generic implementation of directive handling, etc. which is shared
-/// (or the default, at least) for all assembler parsers.
-class GenericAsmParser : public MCAsmParserExtension {
- template<bool (GenericAsmParser::*Handler)(StringRef, SMLoc)>
- void AddDirectiveHandler(StringRef Directive) {
- getParser().AddDirectiveHandler(this, Directive,
- HandleDirective<GenericAsmParser, Handler>);
- }
-public:
- GenericAsmParser() {}
-
- virtual void Initialize(MCAsmParser &Parser) {
- // Call the base implementation.
- this->MCAsmParserExtension::Initialize(Parser);
-
- // Debugging directives.
- AddDirectiveHandler<&GenericAsmParser::ParseDirectiveFile>(".file");
- AddDirectiveHandler<&GenericAsmParser::ParseDirectiveLine>(".line");
- AddDirectiveHandler<&GenericAsmParser::ParseDirectiveLoc>(".loc");
- AddDirectiveHandler<&GenericAsmParser::ParseDirectiveStabs>(".stabs");
-
- AddDirectiveHandler<&GenericAsmParser::ParseDirectiveSpace>(".space");
- AddDirectiveHandler<&GenericAsmParser::ParseDirectiveSpace>(".skip");
-
- // CFI directives.
- AddDirectiveHandler<&GenericAsmParser::ParseDirectiveCFISections>(
- ".cfi_sections");
- AddDirectiveHandler<&GenericAsmParser::ParseDirectiveCFIStartProc>(
- ".cfi_startproc");
- AddDirectiveHandler<&GenericAsmParser::ParseDirectiveCFIEndProc>(
- ".cfi_endproc");
- AddDirectiveHandler<&GenericAsmParser::ParseDirectiveCFIDefCfa>(
- ".cfi_def_cfa");
- AddDirectiveHandler<&GenericAsmParser::ParseDirectiveCFIDefCfaOffset>(
- ".cfi_def_cfa_offset");
- AddDirectiveHandler<&GenericAsmParser::ParseDirectiveCFIAdjustCfaOffset>(
- ".cfi_adjust_cfa_offset");
- AddDirectiveHandler<&GenericAsmParser::ParseDirectiveCFIDefCfaRegister>(
- ".cfi_def_cfa_register");
- AddDirectiveHandler<&GenericAsmParser::ParseDirectiveCFIOffset>(
- ".cfi_offset");
- AddDirectiveHandler<&GenericAsmParser::ParseDirectiveCFIRelOffset>(
- ".cfi_rel_offset");
- AddDirectiveHandler<
- &GenericAsmParser::ParseDirectiveCFIPersonalityOrLsda>(".cfi_personality");
- AddDirectiveHandler<
- &GenericAsmParser::ParseDirectiveCFIPersonalityOrLsda>(".cfi_lsda");
- AddDirectiveHandler<
- &GenericAsmParser::ParseDirectiveCFIRememberState>(".cfi_remember_state");
- AddDirectiveHandler<
- &GenericAsmParser::ParseDirectiveCFIRestoreState>(".cfi_restore_state");
- AddDirectiveHandler<
- &GenericAsmParser::ParseDirectiveCFISameValue>(".cfi_same_value");
- AddDirectiveHandler<
- &GenericAsmParser::ParseDirectiveCFIRestore>(".cfi_restore");
- AddDirectiveHandler<
- &GenericAsmParser::ParseDirectiveCFIEscape>(".cfi_escape");
- AddDirectiveHandler<
- &GenericAsmParser::ParseDirectiveCFISignalFrame>(".cfi_signal_frame");
- AddDirectiveHandler<
- &GenericAsmParser::ParseDirectiveCFIUndefined>(".cfi_undefined");
- AddDirectiveHandler<
- &GenericAsmParser::ParseDirectiveCFIRegister>(".cfi_register");
-
- // Macro directives.
- AddDirectiveHandler<&GenericAsmParser::ParseDirectiveMacrosOnOff>(
- ".macros_on");
- AddDirectiveHandler<&GenericAsmParser::ParseDirectiveMacrosOnOff>(
- ".macros_off");
- AddDirectiveHandler<&GenericAsmParser::ParseDirectiveMacro>(".macro");
- AddDirectiveHandler<&GenericAsmParser::ParseDirectiveEndMacro>(".endm");
- AddDirectiveHandler<&GenericAsmParser::ParseDirectiveEndMacro>(".endmacro");
- AddDirectiveHandler<&GenericAsmParser::ParseDirectivePurgeMacro>(".purgem");
-
- AddDirectiveHandler<&GenericAsmParser::ParseDirectiveLEB128>(".sleb128");
- AddDirectiveHandler<&GenericAsmParser::ParseDirectiveLEB128>(".uleb128");
- }
-
- bool ParseRegisterOrRegisterNumber(int64_t &Register, SMLoc DirectiveLoc);
-
- bool ParseDirectiveFile(StringRef, SMLoc DirectiveLoc);
- bool ParseDirectiveLine(StringRef, SMLoc DirectiveLoc);
- bool ParseDirectiveLoc(StringRef, SMLoc DirectiveLoc);
- bool ParseDirectiveStabs(StringRef, SMLoc DirectiveLoc);
- bool ParseDirectiveSpace(StringRef, SMLoc DirectiveLoc);
- bool ParseDirectiveCFISections(StringRef, SMLoc DirectiveLoc);
- bool ParseDirectiveCFIStartProc(StringRef, SMLoc DirectiveLoc);
- bool ParseDirectiveCFIEndProc(StringRef, SMLoc DirectiveLoc);
- bool ParseDirectiveCFIDefCfa(StringRef, SMLoc DirectiveLoc);
- bool ParseDirectiveCFIDefCfaOffset(StringRef, SMLoc DirectiveLoc);
- bool ParseDirectiveCFIAdjustCfaOffset(StringRef, SMLoc DirectiveLoc);
- bool ParseDirectiveCFIDefCfaRegister(StringRef, SMLoc DirectiveLoc);
- bool ParseDirectiveCFIOffset(StringRef, SMLoc DirectiveLoc);
- bool ParseDirectiveCFIRelOffset(StringRef, SMLoc DirectiveLoc);
- bool ParseDirectiveCFIPersonalityOrLsda(StringRef, SMLoc DirectiveLoc);
- bool ParseDirectiveCFIRememberState(StringRef, SMLoc DirectiveLoc);
- bool ParseDirectiveCFIRestoreState(StringRef, SMLoc DirectiveLoc);
- bool ParseDirectiveCFISameValue(StringRef, SMLoc DirectiveLoc);
- bool ParseDirectiveCFIRestore(StringRef, SMLoc DirectiveLoc);
- bool ParseDirectiveCFIEscape(StringRef, SMLoc DirectiveLoc);
- bool ParseDirectiveCFISignalFrame(StringRef, SMLoc DirectiveLoc);
- bool ParseDirectiveCFIUndefined(StringRef, SMLoc DirectiveLoc);
- bool ParseDirectiveCFIRegister(StringRef, SMLoc DirectiveLoc);
-
- bool ParseDirectiveMacrosOnOff(StringRef, SMLoc DirectiveLoc);
- bool ParseDirectiveMacro(StringRef, SMLoc DirectiveLoc);
- bool ParseDirectiveEndMacro(StringRef, SMLoc DirectiveLoc);
- bool ParseDirectivePurgeMacro(StringRef, SMLoc DirectiveLoc);
-
- bool ParseDirectiveLEB128(StringRef, SMLoc);
+ void initializeDirectiveKindMap();
};
-
}
namespace llvm {
AsmParser::AsmParser(SourceMgr &_SM, MCContext &_Ctx,
MCStreamer &_Out, const MCAsmInfo &_MAI)
: Lexer(_MAI), Ctx(_Ctx), Out(_Out), MAI(_MAI), SrcMgr(_SM),
- GenericParser(new GenericAsmParser), PlatformParser(0),
+ PlatformParser(0),
CurBuffer(0), MacrosEnabledFlag(true), CppHashLineNumber(0),
AssemblerDialect(~0U), IsDarwin(false), ParsingInlineAsm(false) {
// Save the old handler.
SrcMgr.setDiagHandler(DiagHandler, this);
Lexer.setBuffer(SrcMgr.getMemoryBuffer(CurBuffer));
- // Initialize the generic parser.
- GenericParser->Initialize(*this);
-
// Initialize the platform / file format parser.
//
// FIXME: This is a hack, we need to (majorly) cleanup how these objects are
PlatformParser->Initialize(*this);
}
- initializeDirectiveKindMapping();
+ initializeDirectiveKindMap();
}
AsmParser::~AsmParser() {
delete it->getValue();
delete PlatformParser;
- delete GenericParser;
}
void AsmParser::PrintMacroInstantiations() {
// have to do this so that .endif isn't skipped in a ".if 0" block for
// example.
StringMap<DirectiveKind>::const_iterator DirKindIt =
- DirectiveKindMapping.find(IDVal);
+ DirectiveKindMap.find(IDVal);
DirectiveKind DirKind =
- (DirKindIt == DirectiveKindMapping.end()) ? DK_NO_DIRECTIVE :
- DirKindIt->getValue();
+ (DirKindIt == DirectiveKindMap.end()) ? DK_NO_DIRECTIVE :
+ DirKindIt->getValue();
switch (DirKind) {
default:
break;
}
// Otherwise, we have a normal instruction or directive.
+
+ // Directives start with "."
if (IDVal[0] == '.' && IDVal != ".") {
-
- // Target hook for parsing target specific directives.
+ // There are several entities interested in parsing directives:
+ //
+ // 1. The target-specific assembly parser. Some directives are target
+ // specific or may potentially behave differently on certain targets.
+ // 2. Asm parser extensions. For example, platform-specific parsers
+ // (like the ELF parser) register themselves as extensions.
+ // 3. The generic directive parser implemented by this class. These are
+ // all the directives that behave in a target and platform independent
+ // manner, or at least have a default behavior that's shared between
+ // all targets and platforms.
+
+ // First query the target-specific parser. It will return 'true' if it
+ // isn't interested in this directive.
if (!getTargetParser().ParseDirective(ID))
return false;
+ // Next, check the extention directive map to see if any extension has
+ // registered itself to parse this directive.
+ std::pair<MCAsmParserExtension*, DirectiveHandler> Handler =
+ ExtensionDirectiveMap.lookup(IDVal);
+ if (Handler.first)
+ return (*Handler.second)(Handler.first, IDVal, IDLoc);
+
+ // Finally, if no one else is interested in this directive, it must be
+ // generic and familiar to this class.
switch (DirKind) {
default:
break;
return ParseDirectiveBundleLock();
case DK_BUNDLE_UNLOCK:
return ParseDirectiveBundleUnlock();
+ case DK_SLEB128:
+ return ParseDirectiveLEB128(true);
+ case DK_ULEB128:
+ return ParseDirectiveLEB128(false);
+ case DK_SPACE:
+ case DK_SKIP:
+ return ParseDirectiveSpace(IDVal);
+ case DK_FILE:
+ return ParseDirectiveFile(IDLoc);
+ case DK_LINE:
+ return ParseDirectiveLine();
+ case DK_LOC:
+ return ParseDirectiveLoc();
+ case DK_STABS:
+ return ParseDirectiveStabs();
+ case DK_CFI_SECTIONS:
+ return ParseDirectiveCFISections();
+ case DK_CFI_STARTPROC:
+ return ParseDirectiveCFIStartProc();
+ case DK_CFI_ENDPROC:
+ return ParseDirectiveCFIEndProc();
+ case DK_CFI_DEF_CFA:
+ return ParseDirectiveCFIDefCfa(IDLoc);
+ case DK_CFI_DEF_CFA_OFFSET:
+ return ParseDirectiveCFIDefCfaOffset();
+ case DK_CFI_ADJUST_CFA_OFFSET:
+ return ParseDirectiveCFIAdjustCfaOffset();
+ case DK_CFI_DEF_CFA_REGISTER:
+ return ParseDirectiveCFIDefCfaRegister(IDLoc);
+ case DK_CFI_OFFSET:
+ return ParseDirectiveCFIOffset(IDLoc);
+ case DK_CFI_REL_OFFSET:
+ return ParseDirectiveCFIRelOffset(IDLoc);
+ case DK_CFI_PERSONALITY:
+ return ParseDirectiveCFIPersonalityOrLsda(true);
+ case DK_CFI_LSDA:
+ return ParseDirectiveCFIPersonalityOrLsda(false);
+ case DK_CFI_REMEMBER_STATE:
+ return ParseDirectiveCFIRememberState();
+ case DK_CFI_RESTORE_STATE:
+ return ParseDirectiveCFIRestoreState();
+ case DK_CFI_SAME_VALUE:
+ return ParseDirectiveCFISameValue(IDLoc);
+ case DK_CFI_RESTORE:
+ return ParseDirectiveCFIRestore(IDLoc);
+ case DK_CFI_ESCAPE:
+ return ParseDirectiveCFIEscape();
+ case DK_CFI_SIGNAL_FRAME:
+ return ParseDirectiveCFISignalFrame();
+ case DK_CFI_UNDEFINED:
+ return ParseDirectiveCFIUndefined(IDLoc);
+ case DK_CFI_REGISTER:
+ return ParseDirectiveCFIRegister(IDLoc);
+ case DK_MACROS_ON:
+ case DK_MACROS_OFF:
+ return ParseDirectiveMacrosOnOff(IDVal);
+ case DK_MACRO:
+ return ParseDirectiveMacro(IDLoc);
+ case DK_ENDM:
+ case DK_ENDMACRO:
+ return ParseDirectiveEndMacro(IDVal);
+ case DK_PURGEM:
+ return ParseDirectivePurgeMacro(IDLoc);
}
- // Look up the handler in the extension handler table.
- std::pair<MCAsmParserExtension*, DirectiveHandler> Handler =
- DirectiveMap.lookup(IDVal);
- if (Handler.first)
- return (*Handler.second)(Handler.first, IDVal, IDLoc);
-
return Error(IDLoc, "unknown directive");
}
return false;
}
+/// ParseDirectiveFile
+/// ::= .file [number] filename
+/// ::= .file number directory filename
+bool AsmParser::ParseDirectiveFile(SMLoc DirectiveLoc) {
+ // FIXME: I'm not sure what this is.
+ int64_t FileNumber = -1;
+ SMLoc FileNumberLoc = getLexer().getLoc();
+ if (getLexer().is(AsmToken::Integer)) {
+ FileNumber = getTok().getIntVal();
+ Lex();
-/// ParseDirectiveBundleAlignMode
-/// ::= {.bundle_align_mode} expression
-bool AsmParser::ParseDirectiveBundleAlignMode() {
- CheckForValidSection();
+ if (FileNumber < 1)
+ return TokError("file number less than one");
+ }
- // Expect a single argument: an expression that evaluates to a constant
- // in the inclusive range 0-30.
- SMLoc ExprLoc = getLexer().getLoc();
- int64_t AlignSizePow2;
- if (ParseAbsoluteExpression(AlignSizePow2))
- return true;
- else if (getLexer().isNot(AsmToken::EndOfStatement))
- return TokError("unexpected token after expression in"
- " '.bundle_align_mode' directive");
- else if (AlignSizePow2 < 0 || AlignSizePow2 > 30)
- return Error(ExprLoc,
- "invalid bundle alignment size (expected between 0 and 30)");
+ if (getLexer().isNot(AsmToken::String))
+ return TokError("unexpected token in '.file' directive");
+ // Usually the directory and filename together, otherwise just the directory.
+ StringRef Path = getTok().getString();
+ Path = Path.substr(1, Path.size()-2);
Lex();
- // Because of AlignSizePow2's verified range we can safely truncate it to
- // unsigned.
- getStreamer().EmitBundleAlignMode(static_cast<unsigned>(AlignSizePow2));
+ StringRef Directory;
+ StringRef Filename;
+ if (getLexer().is(AsmToken::String)) {
+ if (FileNumber == -1)
+ return TokError("explicit path specified, but no file number");
+ Filename = getTok().getString();
+ Filename = Filename.substr(1, Filename.size()-2);
+ Directory = Path;
+ Lex();
+ } else {
+ Filename = Path;
+ }
+
+ if (getLexer().isNot(AsmToken::EndOfStatement))
+ return TokError("unexpected token in '.file' directive");
+
+ if (FileNumber == -1)
+ getStreamer().EmitFileDirective(Filename);
+ else {
+ if (getContext().getGenDwarfForAssembly() == true)
+ Error(DirectiveLoc, "input can't have .file dwarf directives when -g is "
+ "used to generate dwarf debug info for assembly code");
+
+ if (getStreamer().EmitDwarfFileDirective(FileNumber, Directory, Filename))
+ Error(FileNumberLoc, "file number already allocated");
+ }
+
return false;
}
-/// ParseDirectiveBundleLock
-/// ::= {.bundle_lock} [align_to_end]
-bool AsmParser::ParseDirectiveBundleLock() {
- CheckForValidSection();
- bool AlignToEnd = false;
-
+/// ParseDirectiveLine
+/// ::= .line [number]
+bool AsmParser::ParseDirectiveLine() {
if (getLexer().isNot(AsmToken::EndOfStatement)) {
- StringRef Option;
- SMLoc Loc = getTok().getLoc();
- const char *kInvalidOptionError =
- "invalid option for '.bundle_lock' directive";
+ if (getLexer().isNot(AsmToken::Integer))
+ return TokError("unexpected token in '.line' directive");
- if (ParseIdentifier(Option))
- return Error(Loc, kInvalidOptionError);
+ int64_t LineNumber = getTok().getIntVal();
+ (void) LineNumber;
+ Lex();
- if (Option != "align_to_end")
- return Error(Loc, kInvalidOptionError);
- else if (getLexer().isNot(AsmToken::EndOfStatement))
- return Error(Loc,
- "unexpected token after '.bundle_lock' directive option");
- AlignToEnd = true;
+ // FIXME: Do something with the .line.
}
- Lex();
+ if (getLexer().isNot(AsmToken::EndOfStatement))
+ return TokError("unexpected token in '.line' directive");
- getStreamer().EmitBundleLock(AlignToEnd);
return false;
}
-/// ParseDirectiveBundleLock
-/// ::= {.bundle_lock}
-bool AsmParser::ParseDirectiveBundleUnlock() {
- CheckForValidSection();
-
- if (getLexer().isNot(AsmToken::EndOfStatement))
- return TokError("unexpected token in '.bundle_unlock' directive");
+/// ParseDirectiveLoc
+/// ::= .loc FileNumber [LineNumber] [ColumnPos] [basic_block] [prologue_end]
+/// [epilogue_begin] [is_stmt VALUE] [isa VALUE]
+/// The first number is a file number, must have been previously assigned with
+/// a .file directive, the second number is the line number and optionally the
+/// third number is a column position (zero if not specified). The remaining
+/// optional items are .loc sub-directives.
+bool AsmParser::ParseDirectiveLoc() {
+ if (getLexer().isNot(AsmToken::Integer))
+ return TokError("unexpected token in '.loc' directive");
+ int64_t FileNumber = getTok().getIntVal();
+ if (FileNumber < 1)
+ return TokError("file number less than one in '.loc' directive");
+ if (!getContext().isValidDwarfFileNumber(FileNumber))
+ return TokError("unassigned file number in '.loc' directive");
Lex();
- getStreamer().EmitBundleUnlock();
- return false;
-}
+ int64_t LineNumber = 0;
+ if (getLexer().is(AsmToken::Integer)) {
+ LineNumber = getTok().getIntVal();
+ if (LineNumber < 1)
+ return TokError("line number less than one in '.loc' directive");
+ Lex();
+ }
-/// ParseDirectiveSymbolAttribute
-/// ::= { ".globl", ".weak", ... } [ identifier ( , identifier )* ]
-bool AsmParser::ParseDirectiveSymbolAttribute(MCSymbolAttr Attr) {
+ int64_t ColumnPos = 0;
+ if (getLexer().is(AsmToken::Integer)) {
+ ColumnPos = getTok().getIntVal();
+ if (ColumnPos < 0)
+ return TokError("column position less than zero in '.loc' directive");
+ Lex();
+ }
+
+ unsigned Flags = DWARF2_LINE_DEFAULT_IS_STMT ? DWARF2_FLAG_IS_STMT : 0;
+ unsigned Isa = 0;
+ int64_t Discriminator = 0;
if (getLexer().isNot(AsmToken::EndOfStatement)) {
for (;;) {
+ if (getLexer().is(AsmToken::EndOfStatement))
+ break;
+
StringRef Name;
SMLoc Loc = getTok().getLoc();
-
if (ParseIdentifier(Name))
- return Error(Loc, "expected identifier in directive");
-
- MCSymbol *Sym = getContext().GetOrCreateSymbol(Name);
-
- // Assembler local symbols don't make any sense here. Complain loudly.
- if (Sym->isTemporary())
- return Error(Loc, "non-local symbol required in directive");
+ return TokError("unexpected token in '.loc' directive");
- getStreamer().EmitSymbolAttribute(Sym, Attr);
+ if (Name == "basic_block")
+ Flags |= DWARF2_FLAG_BASIC_BLOCK;
+ else if (Name == "prologue_end")
+ Flags |= DWARF2_FLAG_PROLOGUE_END;
+ else if (Name == "epilogue_begin")
+ Flags |= DWARF2_FLAG_EPILOGUE_BEGIN;
+ else if (Name == "is_stmt") {
+ Loc = getTok().getLoc();
+ const MCExpr *Value;
+ if (ParseExpression(Value))
+ return true;
+ // The expression must be the constant 0 or 1.
+ if (const MCConstantExpr *MCE = dyn_cast<MCConstantExpr>(Value)) {
+ int Value = MCE->getValue();
+ if (Value == 0)
+ Flags &= ~DWARF2_FLAG_IS_STMT;
+ else if (Value == 1)
+ Flags |= DWARF2_FLAG_IS_STMT;
+ else
+ return Error(Loc, "is_stmt value not 0 or 1");
+ }
+ else {
+ return Error(Loc, "is_stmt value not the constant value of 0 or 1");
+ }
+ }
+ else if (Name == "isa") {
+ Loc = getTok().getLoc();
+ const MCExpr *Value;
+ if (ParseExpression(Value))
+ return true;
+ // The expression must be a constant greater or equal to 0.
+ if (const MCConstantExpr *MCE = dyn_cast<MCConstantExpr>(Value)) {
+ int Value = MCE->getValue();
+ if (Value < 0)
+ return Error(Loc, "isa number less than zero");
+ Isa = Value;
+ }
+ else {
+ return Error(Loc, "isa number not a constant value");
+ }
+ }
+ else if (Name == "discriminator") {
+ if (ParseAbsoluteExpression(Discriminator))
+ return true;
+ }
+ else {
+ return Error(Loc, "unknown sub-directive in '.loc' directive");
+ }
if (getLexer().is(AsmToken::EndOfStatement))
break;
-
- if (getLexer().isNot(AsmToken::Comma))
- return TokError("unexpected token in directive");
- Lex();
}
}
- Lex();
+ getStreamer().EmitDwarfLocDirective(FileNumber, LineNumber, ColumnPos, Flags,
+ Isa, Discriminator, StringRef());
+
return false;
}
-/// ParseDirectiveComm
-/// ::= ( .comm | .lcomm ) identifier , size_expression [ , align_expression ]
-bool AsmParser::ParseDirectiveComm(bool IsLocal) {
- CheckForValidSection();
+/// ParseDirectiveStabs
+/// ::= .stabs string, number, number, number
+bool AsmParser::ParseDirectiveStabs() {
+ return TokError("unsupported directive '.stabs'");
+}
- SMLoc IDLoc = getLexer().getLoc();
+/// ParseDirectiveCFISections
+/// ::= .cfi_sections section [, section]
+bool AsmParser::ParseDirectiveCFISections() {
StringRef Name;
+ bool EH = false;
+ bool Debug = false;
+
if (ParseIdentifier(Name))
- return TokError("expected identifier in directive");
+ return TokError("Expected an identifier");
- // Handle the identifier as the key symbol.
- MCSymbol *Sym = getContext().GetOrCreateSymbol(Name);
+ if (Name == ".eh_frame")
+ EH = true;
+ else if (Name == ".debug_frame")
+ Debug = true;
- if (getLexer().isNot(AsmToken::Comma))
- return TokError("unexpected token in directive");
- Lex();
+ if (getLexer().is(AsmToken::Comma)) {
+ Lex();
- int64_t Size;
- SMLoc SizeLoc = getLexer().getLoc();
- if (ParseAbsoluteExpression(Size))
- return true;
-
- int64_t Pow2Alignment = 0;
- SMLoc Pow2AlignmentLoc;
- if (getLexer().is(AsmToken::Comma)) {
- Lex();
- Pow2AlignmentLoc = getLexer().getLoc();
- if (ParseAbsoluteExpression(Pow2Alignment))
- return true;
-
- LCOMM::LCOMMType LCOMM = Lexer.getMAI().getLCOMMDirectiveAlignmentType();
- if (IsLocal && LCOMM == LCOMM::NoAlignment)
- return Error(Pow2AlignmentLoc, "alignment not supported on this target");
+ if (ParseIdentifier(Name))
+ return TokError("Expected an identifier");
- // If this target takes alignments in bytes (not log) validate and convert.
- if ((!IsLocal && Lexer.getMAI().getCOMMDirectiveAlignmentIsInBytes()) ||
- (IsLocal && LCOMM == LCOMM::ByteAlignment)) {
- if (!isPowerOf2_64(Pow2Alignment))
- return Error(Pow2AlignmentLoc, "alignment must be a power of 2");
- Pow2Alignment = Log2_64(Pow2Alignment);
- }
+ if (Name == ".eh_frame")
+ EH = true;
+ else if (Name == ".debug_frame")
+ Debug = true;
}
- if (getLexer().isNot(AsmToken::EndOfStatement))
- return TokError("unexpected token in '.comm' or '.lcomm' directive");
-
- Lex();
+ getStreamer().EmitCFISections(EH, Debug);
+ return false;
+}
- // NOTE: a size of zero for a .comm should create a undefined symbol
- // but a size of .lcomm creates a bss symbol of size zero.
- if (Size < 0)
- return Error(SizeLoc, "invalid '.comm' or '.lcomm' directive size, can't "
- "be less than zero");
+/// ParseDirectiveCFIStartProc
+/// ::= .cfi_startproc
+bool AsmParser::ParseDirectiveCFIStartProc() {
+ getStreamer().EmitCFIStartProc();
+ return false;
+}
- // NOTE: The alignment in the directive is a power of 2 value, the assembler
- // may internally end up wanting an alignment in bytes.
- // FIXME: Diagnose overflow.
- if (Pow2Alignment < 0)
- return Error(Pow2AlignmentLoc, "invalid '.comm' or '.lcomm' directive "
- "alignment, can't be less than zero");
+/// ParseDirectiveCFIEndProc
+/// ::= .cfi_endproc
+bool AsmParser::ParseDirectiveCFIEndProc() {
+ getStreamer().EmitCFIEndProc();
+ return false;
+}
- if (!Sym->isUndefined())
- return Error(IDLoc, "invalid symbol redefinition");
+/// ParseRegisterOrRegisterNumber - parse register name or number.
+bool AsmParser::ParseRegisterOrRegisterNumber(int64_t &Register,
+ SMLoc DirectiveLoc) {
+ unsigned RegNo;
- // Create the Symbol as a common or local common with Size and Pow2Alignment
- if (IsLocal) {
- getStreamer().EmitLocalCommonSymbol(Sym, Size, 1 << Pow2Alignment);
- return false;
- }
+ if (getLexer().isNot(AsmToken::Integer)) {
+ if (getTargetParser().ParseRegister(RegNo, DirectiveLoc, DirectiveLoc))
+ return true;
+ Register = getContext().getRegisterInfo().getDwarfRegNum(RegNo, true);
+ } else
+ return ParseAbsoluteExpression(Register);
- getStreamer().EmitCommonSymbol(Sym, Size, 1 << Pow2Alignment);
return false;
}
-/// ParseDirectiveAbort
-/// ::= .abort [... message ...]
-bool AsmParser::ParseDirectiveAbort() {
- // FIXME: Use loc from directive.
- SMLoc Loc = getLexer().getLoc();
-
- StringRef Str = ParseStringToEndOfStatement();
- if (getLexer().isNot(AsmToken::EndOfStatement))
- return TokError("unexpected token in '.abort' directive");
+/// ParseDirectiveCFIDefCfa
+/// ::= .cfi_def_cfa register, offset
+bool AsmParser::ParseDirectiveCFIDefCfa(SMLoc DirectiveLoc) {
+ int64_t Register = 0;
+ if (ParseRegisterOrRegisterNumber(Register, DirectiveLoc))
+ return true;
+ if (getLexer().isNot(AsmToken::Comma))
+ return TokError("unexpected token in directive");
Lex();
- if (Str.empty())
- Error(Loc, ".abort detected. Assembly stopping.");
- else
- Error(Loc, ".abort '" + Str + "' detected. Assembly stopping.");
- // FIXME: Actually abort assembly here.
+ int64_t Offset = 0;
+ if (ParseAbsoluteExpression(Offset))
+ return true;
+ getStreamer().EmitCFIDefCfa(Register, Offset);
return false;
}
-/// ParseDirectiveInclude
-/// ::= .include "filename"
-bool AsmParser::ParseDirectiveInclude() {
- if (getLexer().isNot(AsmToken::String))
- return TokError("expected string in '.include' directive");
+/// ParseDirectiveCFIDefCfaOffset
+/// ::= .cfi_def_cfa_offset offset
+bool AsmParser::ParseDirectiveCFIDefCfaOffset() {
+ int64_t Offset = 0;
+ if (ParseAbsoluteExpression(Offset))
+ return true;
- std::string Filename = getTok().getString();
- SMLoc IncludeLoc = getLexer().getLoc();
- Lex();
+ getStreamer().EmitCFIDefCfaOffset(Offset);
+ return false;
+}
- if (getLexer().isNot(AsmToken::EndOfStatement))
- return TokError("unexpected token in '.include' directive");
+/// ParseDirectiveCFIRegister
+/// ::= .cfi_register register, register
+bool AsmParser::ParseDirectiveCFIRegister(SMLoc DirectiveLoc) {
+ int64_t Register1 = 0;
+ if (ParseRegisterOrRegisterNumber(Register1, DirectiveLoc))
+ return true;
- // Strip the quotes.
- Filename = Filename.substr(1, Filename.size()-2);
+ if (getLexer().isNot(AsmToken::Comma))
+ return TokError("unexpected token in directive");
+ Lex();
- // Attempt to switch the lexer to the included file before consuming the end
- // of statement to avoid losing it when we switch.
- if (EnterIncludeFile(Filename)) {
- Error(IncludeLoc, "Could not find include file '" + Filename + "'");
+ int64_t Register2 = 0;
+ if (ParseRegisterOrRegisterNumber(Register2, DirectiveLoc))
return true;
- }
+ getStreamer().EmitCFIRegister(Register1, Register2);
return false;
}
-/// ParseDirectiveIncbin
-/// ::= .incbin "filename"
-bool AsmParser::ParseDirectiveIncbin() {
- if (getLexer().isNot(AsmToken::String))
- return TokError("expected string in '.incbin' directive");
-
- std::string Filename = getTok().getString();
- SMLoc IncbinLoc = getLexer().getLoc();
- Lex();
-
- if (getLexer().isNot(AsmToken::EndOfStatement))
- return TokError("unexpected token in '.incbin' directive");
+/// ParseDirectiveCFIAdjustCfaOffset
+/// ::= .cfi_adjust_cfa_offset adjustment
+bool AsmParser::ParseDirectiveCFIAdjustCfaOffset() {
+ int64_t Adjustment = 0;
+ if (ParseAbsoluteExpression(Adjustment))
+ return true;
- // Strip the quotes.
- Filename = Filename.substr(1, Filename.size()-2);
+ getStreamer().EmitCFIAdjustCfaOffset(Adjustment);
+ return false;
+}
- // Attempt to process the included file.
- if (ProcessIncbinFile(Filename)) {
- Error(IncbinLoc, "Could not find incbin file '" + Filename + "'");
+/// ParseDirectiveCFIDefCfaRegister
+/// ::= .cfi_def_cfa_register register
+bool AsmParser::ParseDirectiveCFIDefCfaRegister(SMLoc DirectiveLoc) {
+ int64_t Register = 0;
+ if (ParseRegisterOrRegisterNumber(Register, DirectiveLoc))
return true;
- }
+ getStreamer().EmitCFIDefCfaRegister(Register);
return false;
}
-/// ParseDirectiveIf
-/// ::= .if expression
-bool AsmParser::ParseDirectiveIf(SMLoc DirectiveLoc) {
- TheCondStack.push_back(TheCondState);
- TheCondState.TheCond = AsmCond::IfCond;
- if (TheCondState.Ignore) {
- EatToEndOfStatement();
- } else {
- int64_t ExprValue;
- if (ParseAbsoluteExpression(ExprValue))
- return true;
+/// ParseDirectiveCFIOffset
+/// ::= .cfi_offset register, offset
+bool AsmParser::ParseDirectiveCFIOffset(SMLoc DirectiveLoc) {
+ int64_t Register = 0;
+ int64_t Offset = 0;
- if (getLexer().isNot(AsmToken::EndOfStatement))
- return TokError("unexpected token in '.if' directive");
+ if (ParseRegisterOrRegisterNumber(Register, DirectiveLoc))
+ return true;
- Lex();
+ if (getLexer().isNot(AsmToken::Comma))
+ return TokError("unexpected token in directive");
+ Lex();
- TheCondState.CondMet = ExprValue;
- TheCondState.Ignore = !TheCondState.CondMet;
- }
+ if (ParseAbsoluteExpression(Offset))
+ return true;
+ getStreamer().EmitCFIOffset(Register, Offset);
return false;
}
-/// ParseDirectiveIfb
-/// ::= .ifb string
-bool AsmParser::ParseDirectiveIfb(SMLoc DirectiveLoc, bool ExpectBlank) {
- TheCondStack.push_back(TheCondState);
- TheCondState.TheCond = AsmCond::IfCond;
-
- if (TheCondState.Ignore) {
- EatToEndOfStatement();
- } else {
- StringRef Str = ParseStringToEndOfStatement();
+/// ParseDirectiveCFIRelOffset
+/// ::= .cfi_rel_offset register, offset
+bool AsmParser::ParseDirectiveCFIRelOffset(SMLoc DirectiveLoc) {
+ int64_t Register = 0;
- if (getLexer().isNot(AsmToken::EndOfStatement))
- return TokError("unexpected token in '.ifb' directive");
+ if (ParseRegisterOrRegisterNumber(Register, DirectiveLoc))
+ return true;
- Lex();
+ if (getLexer().isNot(AsmToken::Comma))
+ return TokError("unexpected token in directive");
+ Lex();
- TheCondState.CondMet = ExpectBlank == Str.empty();
- TheCondState.Ignore = !TheCondState.CondMet;
- }
+ int64_t Offset = 0;
+ if (ParseAbsoluteExpression(Offset))
+ return true;
+ getStreamer().EmitCFIRelOffset(Register, Offset);
return false;
}
-/// ParseDirectiveIfc
-/// ::= .ifc string1, string2
-bool AsmParser::ParseDirectiveIfc(SMLoc DirectiveLoc, bool ExpectEqual) {
- TheCondStack.push_back(TheCondState);
- TheCondState.TheCond = AsmCond::IfCond;
+static bool isValidEncoding(int64_t Encoding) {
+ if (Encoding & ~0xff)
+ return false;
- if (TheCondState.Ignore) {
- EatToEndOfStatement();
- } else {
- StringRef Str1 = ParseStringToComma();
+ if (Encoding == dwarf::DW_EH_PE_omit)
+ return true;
- if (getLexer().isNot(AsmToken::Comma))
- return TokError("unexpected token in '.ifc' directive");
+ const unsigned Format = Encoding & 0xf;
+ if (Format != dwarf::DW_EH_PE_absptr && Format != dwarf::DW_EH_PE_udata2 &&
+ Format != dwarf::DW_EH_PE_udata4 && Format != dwarf::DW_EH_PE_udata8 &&
+ Format != dwarf::DW_EH_PE_sdata2 && Format != dwarf::DW_EH_PE_sdata4 &&
+ Format != dwarf::DW_EH_PE_sdata8 && Format != dwarf::DW_EH_PE_signed)
+ return false;
- Lex();
+ const unsigned Application = Encoding & 0x70;
+ if (Application != dwarf::DW_EH_PE_absptr &&
+ Application != dwarf::DW_EH_PE_pcrel)
+ return false;
- StringRef Str2 = ParseStringToEndOfStatement();
+ return true;
+}
- if (getLexer().isNot(AsmToken::EndOfStatement))
- return TokError("unexpected token in '.ifc' directive");
+/// ParseDirectiveCFIPersonalityOrLsda
+/// IsPersonality true for cfi_personality, false for cfi_lsda
+/// ::= .cfi_personality encoding, [symbol_name]
+/// ::= .cfi_lsda encoding, [symbol_name]
+bool AsmParser::ParseDirectiveCFIPersonalityOrLsda(bool IsPersonality) {
+ int64_t Encoding = 0;
+ if (ParseAbsoluteExpression(Encoding))
+ return true;
+ if (Encoding == dwarf::DW_EH_PE_omit)
+ return false;
- Lex();
+ if (!isValidEncoding(Encoding))
+ return TokError("unsupported encoding.");
- TheCondState.CondMet = ExpectEqual == (Str1 == Str2);
- TheCondState.Ignore = !TheCondState.CondMet;
- }
+ if (getLexer().isNot(AsmToken::Comma))
+ return TokError("unexpected token in directive");
+ Lex();
+ StringRef Name;
+ if (ParseIdentifier(Name))
+ return TokError("expected identifier in directive");
+
+ MCSymbol *Sym = getContext().GetOrCreateSymbol(Name);
+
+ if (IsPersonality)
+ getStreamer().EmitCFIPersonality(Sym, Encoding);
+ else
+ getStreamer().EmitCFILsda(Sym, Encoding);
return false;
}
-/// ParseDirectiveIfdef
-/// ::= .ifdef symbol
-bool AsmParser::ParseDirectiveIfdef(SMLoc DirectiveLoc, bool expect_defined) {
- StringRef Name;
- TheCondStack.push_back(TheCondState);
- TheCondState.TheCond = AsmCond::IfCond;
-
- if (TheCondState.Ignore) {
- EatToEndOfStatement();
- } else {
- if (ParseIdentifier(Name))
- return TokError("expected identifier after '.ifdef'");
+/// ParseDirectiveCFIRememberState
+/// ::= .cfi_remember_state
+bool AsmParser::ParseDirectiveCFIRememberState() {
+ getStreamer().EmitCFIRememberState();
+ return false;
+}
- Lex();
+/// ParseDirectiveCFIRestoreState
+/// ::= .cfi_remember_state
+bool AsmParser::ParseDirectiveCFIRestoreState() {
+ getStreamer().EmitCFIRestoreState();
+ return false;
+}
- MCSymbol *Sym = getContext().LookupSymbol(Name);
+/// ParseDirectiveCFISameValue
+/// ::= .cfi_same_value register
+bool AsmParser::ParseDirectiveCFISameValue(SMLoc DirectiveLoc) {
+ int64_t Register = 0;
- if (expect_defined)
- TheCondState.CondMet = (Sym != NULL && !Sym->isUndefined());
- else
- TheCondState.CondMet = (Sym == NULL || Sym->isUndefined());
- TheCondState.Ignore = !TheCondState.CondMet;
- }
+ if (ParseRegisterOrRegisterNumber(Register, DirectiveLoc))
+ return true;
+ getStreamer().EmitCFISameValue(Register);
return false;
}
-/// ParseDirectiveElseIf
-/// ::= .elseif expression
-bool AsmParser::ParseDirectiveElseIf(SMLoc DirectiveLoc) {
- if (TheCondState.TheCond != AsmCond::IfCond &&
- TheCondState.TheCond != AsmCond::ElseIfCond)
- Error(DirectiveLoc, "Encountered a .elseif that doesn't follow a .if or "
- " an .elseif");
- TheCondState.TheCond = AsmCond::ElseIfCond;
+/// ParseDirectiveCFIRestore
+/// ::= .cfi_restore register
+bool AsmParser::ParseDirectiveCFIRestore(SMLoc DirectiveLoc) {
+ int64_t Register = 0;
+ if (ParseRegisterOrRegisterNumber(Register, DirectiveLoc))
+ return true;
- bool LastIgnoreState = false;
- if (!TheCondStack.empty())
- LastIgnoreState = TheCondStack.back().Ignore;
- if (LastIgnoreState || TheCondState.CondMet) {
- TheCondState.Ignore = true;
- EatToEndOfStatement();
- }
- else {
- int64_t ExprValue;
- if (ParseAbsoluteExpression(ExprValue))
- return true;
+ getStreamer().EmitCFIRestore(Register);
+ return false;
+}
- if (getLexer().isNot(AsmToken::EndOfStatement))
- return TokError("unexpected token in '.elseif' directive");
+/// ParseDirectiveCFIEscape
+/// ::= .cfi_escape expression[,...]
+bool AsmParser::ParseDirectiveCFIEscape() {
+ std::string Values;
+ int64_t CurrValue;
+ if (ParseAbsoluteExpression(CurrValue))
+ return true;
+
+ Values.push_back((uint8_t)CurrValue);
+ while (getLexer().is(AsmToken::Comma)) {
Lex();
- TheCondState.CondMet = ExprValue;
- TheCondState.Ignore = !TheCondState.CondMet;
+
+ if (ParseAbsoluteExpression(CurrValue))
+ return true;
+
+ Values.push_back((uint8_t)CurrValue);
}
+ getStreamer().EmitCFIEscape(Values);
return false;
}
-/// ParseDirectiveElse
-/// ::= .else
-bool AsmParser::ParseDirectiveElse(SMLoc DirectiveLoc) {
+/// ParseDirectiveCFISignalFrame
+/// ::= .cfi_signal_frame
+bool AsmParser::ParseDirectiveCFISignalFrame() {
if (getLexer().isNot(AsmToken::EndOfStatement))
- return TokError("unexpected token in '.else' directive");
+ return Error(getLexer().getLoc(),
+ "unexpected token in '.cfi_signal_frame'");
- Lex();
+ getStreamer().EmitCFISignalFrame();
+ return false;
+}
- if (TheCondState.TheCond != AsmCond::IfCond &&
- TheCondState.TheCond != AsmCond::ElseIfCond)
- Error(DirectiveLoc, "Encountered a .else that doesn't follow a .if or an "
- ".elseif");
- TheCondState.TheCond = AsmCond::ElseCond;
- bool LastIgnoreState = false;
- if (!TheCondStack.empty())
- LastIgnoreState = TheCondStack.back().Ignore;
- if (LastIgnoreState || TheCondState.CondMet)
- TheCondState.Ignore = true;
- else
- TheCondState.Ignore = false;
+/// ParseDirectiveCFIUndefined
+/// ::= .cfi_undefined register
+bool AsmParser::ParseDirectiveCFIUndefined(SMLoc DirectiveLoc) {
+ int64_t Register = 0;
+ if (ParseRegisterOrRegisterNumber(Register, DirectiveLoc))
+ return true;
+
+ getStreamer().EmitCFIUndefined(Register);
return false;
}
-/// ParseDirectiveEndIf
-/// ::= .endif
-bool AsmParser::ParseDirectiveEndIf(SMLoc DirectiveLoc) {
+/// ParseDirectiveMacrosOnOff
+/// ::= .macros_on
+/// ::= .macros_off
+bool AsmParser::ParseDirectiveMacrosOnOff(StringRef Directive) {
if (getLexer().isNot(AsmToken::EndOfStatement))
- return TokError("unexpected token in '.endif' directive");
-
- Lex();
-
- if ((TheCondState.TheCond == AsmCond::NoCond) ||
- TheCondStack.empty())
- Error(DirectiveLoc, "Encountered a .endif that doesn't follow a .if or "
- ".else");
- if (!TheCondStack.empty()) {
- TheCondState = TheCondStack.back();
- TheCondStack.pop_back();
- }
+ return Error(getLexer().getLoc(),
+ "unexpected token in '" + Directive + "' directive");
+ SetMacrosEnabled(Directive == ".macros_on");
return false;
}
-void AsmParser::initializeDirectiveKindMapping() {
- DirectiveKindMapping[".set"] = DK_SET;
- DirectiveKindMapping[".equ"] = DK_EQU;
- DirectiveKindMapping[".equiv"] = DK_EQUIV;
- DirectiveKindMapping[".ascii"] = DK_ASCII;
- DirectiveKindMapping[".asciz"] = DK_ASCIZ;
- DirectiveKindMapping[".string"] = DK_STRING;
- DirectiveKindMapping[".byte"] = DK_BYTE;
- DirectiveKindMapping[".short"] = DK_SHORT;
- DirectiveKindMapping[".value"] = DK_VALUE;
- DirectiveKindMapping[".2byte"] = DK_2BYTE;
- DirectiveKindMapping[".long"] = DK_LONG;
- DirectiveKindMapping[".int"] = DK_INT;
- DirectiveKindMapping[".4byte"] = DK_4BYTE;
- DirectiveKindMapping[".quad"] = DK_QUAD;
- DirectiveKindMapping[".8byte"] = DK_8BYTE;
- DirectiveKindMapping[".single"] = DK_SINGLE;
- DirectiveKindMapping[".float"] = DK_FLOAT;
- DirectiveKindMapping[".double"] = DK_DOUBLE;
- DirectiveKindMapping[".align"] = DK_ALIGN;
- DirectiveKindMapping[".align32"] = DK_ALIGN32;
- DirectiveKindMapping[".balign"] = DK_BALIGN;
- DirectiveKindMapping[".balignw"] = DK_BALIGNW;
- DirectiveKindMapping[".balignl"] = DK_BALIGNL;
- DirectiveKindMapping[".p2align"] = DK_P2ALIGN;
- DirectiveKindMapping[".p2alignw"] = DK_P2ALIGNW;
- DirectiveKindMapping[".p2alignl"] = DK_P2ALIGNL;
- DirectiveKindMapping[".org"] = DK_ORG;
- DirectiveKindMapping[".fill"] = DK_FILL;
- DirectiveKindMapping[".zero"] = DK_ZERO;
- DirectiveKindMapping[".extern"] = DK_EXTERN;
- DirectiveKindMapping[".globl"] = DK_GLOBL;
- DirectiveKindMapping[".global"] = DK_GLOBAL;
- DirectiveKindMapping[".indirect_symbol"] = DK_INDIRECT_SYMBOL;
- DirectiveKindMapping[".lazy_reference"] = DK_LAZY_REFERENCE;
- DirectiveKindMapping[".no_dead_strip"] = DK_NO_DEAD_STRIP;
- DirectiveKindMapping[".symbol_resolver"] = DK_SYMBOL_RESOLVER;
- DirectiveKindMapping[".private_extern"] = DK_PRIVATE_EXTERN;
- DirectiveKindMapping[".reference"] = DK_REFERENCE;
- DirectiveKindMapping[".weak_definition"] = DK_WEAK_DEFINITION;
- DirectiveKindMapping[".weak_reference"] = DK_WEAK_REFERENCE;
- DirectiveKindMapping[".weak_def_can_be_hidden"] = DK_WEAK_DEF_CAN_BE_HIDDEN;
- DirectiveKindMapping[".comm"] = DK_COMM;
- DirectiveKindMapping[".common"] = DK_COMMON;
- DirectiveKindMapping[".lcomm"] = DK_LCOMM;
- DirectiveKindMapping[".abort"] = DK_ABORT;
- DirectiveKindMapping[".include"] = DK_INCLUDE;
- DirectiveKindMapping[".incbin"] = DK_INCBIN;
- DirectiveKindMapping[".code16"] = DK_CODE16;
- DirectiveKindMapping[".code16gcc"] = DK_CODE16GCC;
- DirectiveKindMapping[".rept"] = DK_REPT;
- DirectiveKindMapping[".irp"] = DK_IRP;
- DirectiveKindMapping[".irpc"] = DK_IRPC;
- DirectiveKindMapping[".endr"] = DK_ENDR;
- DirectiveKindMapping[".bundle_align_mode"] = DK_BUNDLE_ALIGN_MODE;
- DirectiveKindMapping[".bundle_lock"] = DK_BUNDLE_LOCK;
- DirectiveKindMapping[".bundle_unlock"] = DK_BUNDLE_UNLOCK;
- DirectiveKindMapping[".if"] = DK_IF;
- DirectiveKindMapping[".ifb"] = DK_IFB;
- DirectiveKindMapping[".ifnb"] = DK_IFNB;
- DirectiveKindMapping[".ifc"] = DK_IFC;
- DirectiveKindMapping[".ifnc"] = DK_IFNC;
- DirectiveKindMapping[".ifdef"] = DK_IFDEF;
- DirectiveKindMapping[".ifndef"] = DK_IFNDEF;
- DirectiveKindMapping[".ifnotdef"] = DK_IFNOTDEF;
- DirectiveKindMapping[".elseif"] = DK_ELSEIF;
- DirectiveKindMapping[".else"] = DK_ELSE;
- DirectiveKindMapping[".endif"] = DK_ENDIF;
-}
+/// ParseDirectiveMacro
+/// ::= .macro name [parameters]
+bool AsmParser::ParseDirectiveMacro(SMLoc DirectiveLoc) {
+ StringRef Name;
+ if (ParseIdentifier(Name))
+ return TokError("expected identifier in '.macro' directive");
-/// ParseDirectiveFile
-/// ::= .file [number] filename
-/// ::= .file number directory filename
-bool GenericAsmParser::ParseDirectiveFile(StringRef, SMLoc DirectiveLoc) {
- // FIXME: I'm not sure what this is.
- int64_t FileNumber = -1;
- SMLoc FileNumberLoc = getLexer().getLoc();
- if (getLexer().is(AsmToken::Integer)) {
- FileNumber = getTok().getIntVal();
- Lex();
+ MCAsmMacroParameters Parameters;
+ // Argument delimiter is initially unknown. It will be set by
+ // ParseMacroArgument()
+ AsmToken::TokenKind ArgumentDelimiter = AsmToken::Eof;
+ if (getLexer().isNot(AsmToken::EndOfStatement)) {
+ for (;;) {
+ MCAsmMacroParameter Parameter;
+ if (ParseIdentifier(Parameter.first))
+ return TokError("expected identifier in '.macro' directive");
- if (FileNumber < 1)
- return TokError("file number less than one");
- }
+ if (getLexer().is(AsmToken::Equal)) {
+ Lex();
+ if (ParseMacroArgument(Parameter.second, ArgumentDelimiter))
+ return true;
+ }
- if (getLexer().isNot(AsmToken::String))
- return TokError("unexpected token in '.file' directive");
+ Parameters.push_back(Parameter);
- // Usually the directory and filename together, otherwise just the directory.
- StringRef Path = getTok().getString();
- Path = Path.substr(1, Path.size()-2);
+ if (getLexer().is(AsmToken::Comma))
+ Lex();
+ else if (getLexer().is(AsmToken::EndOfStatement))
+ break;
+ }
+ }
+
+ // Eat the end of statement.
Lex();
- StringRef Directory;
- StringRef Filename;
- if (getLexer().is(AsmToken::String)) {
- if (FileNumber == -1)
- return TokError("explicit path specified, but no file number");
- Filename = getTok().getString();
- Filename = Filename.substr(1, Filename.size()-2);
- Directory = Path;
- Lex();
- } else {
- Filename = Path;
- }
+ AsmToken EndToken, StartToken = getTok();
- if (getLexer().isNot(AsmToken::EndOfStatement))
- return TokError("unexpected token in '.file' directive");
+ // Lex the macro definition.
+ for (;;) {
+ // Check whether we have reached the end of the file.
+ if (getLexer().is(AsmToken::Eof))
+ return Error(DirectiveLoc, "no matching '.endmacro' in definition");
- if (FileNumber == -1)
- getStreamer().EmitFileDirective(Filename);
- else {
- if (getContext().getGenDwarfForAssembly() == true)
- Error(DirectiveLoc, "input can't have .file dwarf directives when -g is "
- "used to generate dwarf debug info for assembly code");
+ // Otherwise, check whether we have reach the .endmacro.
+ if (getLexer().is(AsmToken::Identifier) &&
+ (getTok().getIdentifier() == ".endm" ||
+ getTok().getIdentifier() == ".endmacro")) {
+ EndToken = getTok();
+ Lex();
+ if (getLexer().isNot(AsmToken::EndOfStatement))
+ return TokError("unexpected token in '" + EndToken.getIdentifier() +
+ "' directive");
+ break;
+ }
- if (getStreamer().EmitDwarfFileDirective(FileNumber, Directory, Filename))
- Error(FileNumberLoc, "file number already allocated");
+ // Otherwise, scan til the end of the statement.
+ EatToEndOfStatement();
}
+ if (LookupMacro(Name)) {
+ return Error(DirectiveLoc, "macro '" + Name + "' is already defined");
+ }
+
+ const char *BodyStart = StartToken.getLoc().getPointer();
+ const char *BodyEnd = EndToken.getLoc().getPointer();
+ StringRef Body = StringRef(BodyStart, BodyEnd - BodyStart);
+ DefineMacro(Name, MCAsmMacro(Name, Body, Parameters));
return false;
}
-/// ParseDirectiveLine
-/// ::= .line [number]
-bool GenericAsmParser::ParseDirectiveLine(StringRef, SMLoc DirectiveLoc) {
- if (getLexer().isNot(AsmToken::EndOfStatement)) {
- if (getLexer().isNot(AsmToken::Integer))
- return TokError("unexpected token in '.line' directive");
-
- int64_t LineNumber = getTok().getIntVal();
- (void) LineNumber;
- Lex();
+/// ParseDirectiveEndMacro
+/// ::= .endm
+/// ::= .endmacro
+bool AsmParser::ParseDirectiveEndMacro(StringRef Directive) {
+ if (getLexer().isNot(AsmToken::EndOfStatement))
+ return TokError("unexpected token in '" + Directive + "' directive");
- // FIXME: Do something with the .line.
+ // If we are inside a macro instantiation, terminate the current
+ // instantiation.
+ if (InsideMacroInstantiation()) {
+ HandleMacroExit();
+ return false;
}
+ // Otherwise, this .endmacro is a stray entry in the file; well formed
+ // .endmacro directives are handled during the macro definition parsing.
+ return TokError("unexpected '" + Directive + "' in file, "
+ "no current macro definition");
+}
+
+/// ParseDirectivePurgeMacro
+/// ::= .purgem
+bool AsmParser::ParseDirectivePurgeMacro(SMLoc DirectiveLoc) {
+ StringRef Name;
+ if (ParseIdentifier(Name))
+ return TokError("expected identifier in '.purgem' directive");
+
if (getLexer().isNot(AsmToken::EndOfStatement))
- return TokError("unexpected token in '.line' directive");
+ return TokError("unexpected token in '.purgem' directive");
+
+ if (!LookupMacro(Name))
+ return Error(DirectiveLoc, "macro '" + Name + "' is not defined");
+ UndefineMacro(Name);
return false;
}
+/// ParseDirectiveBundleAlignMode
+/// ::= {.bundle_align_mode} expression
+bool AsmParser::ParseDirectiveBundleAlignMode() {
+ CheckForValidSection();
-/// ParseDirectiveLoc
-/// ::= .loc FileNumber [LineNumber] [ColumnPos] [basic_block] [prologue_end]
-/// [epilogue_begin] [is_stmt VALUE] [isa VALUE]
-/// The first number is a file number, must have been previously assigned with
-/// a .file directive, the second number is the line number and optionally the
-/// third number is a column position (zero if not specified). The remaining
-/// optional items are .loc sub-directives.
-bool GenericAsmParser::ParseDirectiveLoc(StringRef, SMLoc DirectiveLoc) {
+ // Expect a single argument: an expression that evaluates to a constant
+ // in the inclusive range 0-30.
+ SMLoc ExprLoc = getLexer().getLoc();
+ int64_t AlignSizePow2;
+ if (ParseAbsoluteExpression(AlignSizePow2))
+ return true;
+ else if (getLexer().isNot(AsmToken::EndOfStatement))
+ return TokError("unexpected token after expression in"
+ " '.bundle_align_mode' directive");
+ else if (AlignSizePow2 < 0 || AlignSizePow2 > 30)
+ return Error(ExprLoc,
+ "invalid bundle alignment size (expected between 0 and 30)");
- if (getLexer().isNot(AsmToken::Integer))
- return TokError("unexpected token in '.loc' directive");
- int64_t FileNumber = getTok().getIntVal();
- if (FileNumber < 1)
- return TokError("file number less than one in '.loc' directive");
- if (!getContext().isValidDwarfFileNumber(FileNumber))
- return TokError("unassigned file number in '.loc' directive");
Lex();
- int64_t LineNumber = 0;
- if (getLexer().is(AsmToken::Integer)) {
- LineNumber = getTok().getIntVal();
- if (LineNumber < 1)
- return TokError("line number less than one in '.loc' directive");
- Lex();
- }
+ // Because of AlignSizePow2's verified range we can safely truncate it to
+ // unsigned.
+ getStreamer().EmitBundleAlignMode(static_cast<unsigned>(AlignSizePow2));
+ return false;
+}
- int64_t ColumnPos = 0;
- if (getLexer().is(AsmToken::Integer)) {
- ColumnPos = getTok().getIntVal();
- if (ColumnPos < 0)
- return TokError("column position less than zero in '.loc' directive");
- Lex();
- }
+/// ParseDirectiveBundleLock
+/// ::= {.bundle_lock} [align_to_end]
+bool AsmParser::ParseDirectiveBundleLock() {
+ CheckForValidSection();
+ bool AlignToEnd = false;
- unsigned Flags = DWARF2_LINE_DEFAULT_IS_STMT ? DWARF2_FLAG_IS_STMT : 0;
- unsigned Isa = 0;
- int64_t Discriminator = 0;
if (getLexer().isNot(AsmToken::EndOfStatement)) {
- for (;;) {
- if (getLexer().is(AsmToken::EndOfStatement))
- break;
-
- StringRef Name;
- SMLoc Loc = getTok().getLoc();
- if (getParser().ParseIdentifier(Name))
- return TokError("unexpected token in '.loc' directive");
+ StringRef Option;
+ SMLoc Loc = getTok().getLoc();
+ const char *kInvalidOptionError =
+ "invalid option for '.bundle_lock' directive";
- if (Name == "basic_block")
- Flags |= DWARF2_FLAG_BASIC_BLOCK;
- else if (Name == "prologue_end")
- Flags |= DWARF2_FLAG_PROLOGUE_END;
- else if (Name == "epilogue_begin")
- Flags |= DWARF2_FLAG_EPILOGUE_BEGIN;
- else if (Name == "is_stmt") {
- Loc = getTok().getLoc();
- const MCExpr *Value;
- if (getParser().ParseExpression(Value))
- return true;
- // The expression must be the constant 0 or 1.
- if (const MCConstantExpr *MCE = dyn_cast<MCConstantExpr>(Value)) {
- int Value = MCE->getValue();
- if (Value == 0)
- Flags &= ~DWARF2_FLAG_IS_STMT;
- else if (Value == 1)
- Flags |= DWARF2_FLAG_IS_STMT;
- else
- return Error(Loc, "is_stmt value not 0 or 1");
- }
- else {
- return Error(Loc, "is_stmt value not the constant value of 0 or 1");
- }
- }
- else if (Name == "isa") {
- Loc = getTok().getLoc();
- const MCExpr *Value;
- if (getParser().ParseExpression(Value))
- return true;
- // The expression must be a constant greater or equal to 0.
- if (const MCConstantExpr *MCE = dyn_cast<MCConstantExpr>(Value)) {
- int Value = MCE->getValue();
- if (Value < 0)
- return Error(Loc, "isa number less than zero");
- Isa = Value;
- }
- else {
- return Error(Loc, "isa number not a constant value");
- }
- }
- else if (Name == "discriminator") {
- if (getParser().ParseAbsoluteExpression(Discriminator))
- return true;
- }
- else {
- return Error(Loc, "unknown sub-directive in '.loc' directive");
- }
+ if (ParseIdentifier(Option))
+ return Error(Loc, kInvalidOptionError);
- if (getLexer().is(AsmToken::EndOfStatement))
- break;
- }
+ if (Option != "align_to_end")
+ return Error(Loc, kInvalidOptionError);
+ else if (getLexer().isNot(AsmToken::EndOfStatement))
+ return Error(Loc,
+ "unexpected token after '.bundle_lock' directive option");
+ AlignToEnd = true;
}
- getStreamer().EmitDwarfLocDirective(FileNumber, LineNumber, ColumnPos, Flags,
- Isa, Discriminator, StringRef());
+ Lex();
+ getStreamer().EmitBundleLock(AlignToEnd);
return false;
}
-/// ParseDirectiveStabs
-/// ::= .stabs string, number, number, number
-bool GenericAsmParser::ParseDirectiveStabs(StringRef Directive,
- SMLoc DirectiveLoc) {
- return TokError("unsupported directive '" + Directive + "'");
+/// ParseDirectiveBundleLock
+/// ::= {.bundle_lock}
+bool AsmParser::ParseDirectiveBundleUnlock() {
+ CheckForValidSection();
+
+ if (getLexer().isNot(AsmToken::EndOfStatement))
+ return TokError("unexpected token in '.bundle_unlock' directive");
+ Lex();
+
+ getStreamer().EmitBundleUnlock();
+ return false;
}
/// ParseDirectiveSpace
-/// ::= .space expression [ , expression ]
-bool GenericAsmParser::ParseDirectiveSpace(StringRef, SMLoc DirectiveLoc) {
- getParser().CheckForValidSection();
+/// ::= (.skip | .space) expression [ , expression ]
+bool AsmParser::ParseDirectiveSpace(StringRef IDVal) {
+ CheckForValidSection();
int64_t NumBytes;
- if (getParser().ParseAbsoluteExpression(NumBytes))
+ if (ParseAbsoluteExpression(NumBytes))
return true;
int64_t FillExpr = 0;
if (getLexer().isNot(AsmToken::EndOfStatement)) {
if (getLexer().isNot(AsmToken::Comma))
- return TokError("unexpected token in '.space' directive");
+ return TokError("unexpected token in '" + Twine(IDVal) + "' directive");
Lex();
- if (getParser().ParseAbsoluteExpression(FillExpr))
+ if (ParseAbsoluteExpression(FillExpr))
return true;
if (getLexer().isNot(AsmToken::EndOfStatement))
- return TokError("unexpected token in '.space' directive");
- }
-
- Lex();
-
- if (NumBytes <= 0)
- return TokError("invalid number of bytes in '.space' directive");
-
- // FIXME: Sometimes the fill expr is 'nop' if it isn't supplied, instead of 0.
- getStreamer().EmitFill(NumBytes, FillExpr, DEFAULT_ADDRSPACE);
-
- return false;
-}
-
-/// ParseDirectiveCFISections
-/// ::= .cfi_sections section [, section]
-bool GenericAsmParser::ParseDirectiveCFISections(StringRef,
- SMLoc DirectiveLoc) {
- StringRef Name;
- bool EH = false;
- bool Debug = false;
-
- if (getParser().ParseIdentifier(Name))
- return TokError("Expected an identifier");
-
- if (Name == ".eh_frame")
- EH = true;
- else if (Name == ".debug_frame")
- Debug = true;
-
- if (getLexer().is(AsmToken::Comma)) {
- Lex();
-
- if (getParser().ParseIdentifier(Name))
- return TokError("Expected an identifier");
-
- if (Name == ".eh_frame")
- EH = true;
- else if (Name == ".debug_frame")
- Debug = true;
- }
-
- getStreamer().EmitCFISections(EH, Debug);
-
- return false;
-}
-
-/// ParseDirectiveCFIStartProc
-/// ::= .cfi_startproc
-bool GenericAsmParser::ParseDirectiveCFIStartProc(StringRef,
- SMLoc DirectiveLoc) {
- getStreamer().EmitCFIStartProc();
- return false;
-}
+ return TokError("unexpected token in '" + Twine(IDVal) + "' directive");
+ }
-/// ParseDirectiveCFIEndProc
-/// ::= .cfi_endproc
-bool GenericAsmParser::ParseDirectiveCFIEndProc(StringRef, SMLoc DirectiveLoc) {
- getStreamer().EmitCFIEndProc();
- return false;
-}
+ Lex();
-/// ParseRegisterOrRegisterNumber - parse register name or number.
-bool GenericAsmParser::ParseRegisterOrRegisterNumber(int64_t &Register,
- SMLoc DirectiveLoc) {
- unsigned RegNo;
+ if (NumBytes <= 0)
+ return TokError("invalid number of bytes in '" +
+ Twine(IDVal) + "' directive");
- if (getLexer().isNot(AsmToken::Integer)) {
- if (getParser().getTargetParser().ParseRegister(RegNo, DirectiveLoc,
- DirectiveLoc))
- return true;
- Register = getContext().getRegisterInfo().getDwarfRegNum(RegNo, true);
- } else
- return getParser().ParseAbsoluteExpression(Register);
+ // FIXME: Sometimes the fill expr is 'nop' if it isn't supplied, instead of 0.
+ getStreamer().EmitFill(NumBytes, FillExpr, DEFAULT_ADDRSPACE);
return false;
}
-/// ParseDirectiveCFIDefCfa
-/// ::= .cfi_def_cfa register, offset
-bool GenericAsmParser::ParseDirectiveCFIDefCfa(StringRef,
- SMLoc DirectiveLoc) {
- int64_t Register = 0;
- if (ParseRegisterOrRegisterNumber(Register, DirectiveLoc))
+/// ParseDirectiveLEB128
+/// ::= (.sleb128 | .uleb128) expression
+bool AsmParser::ParseDirectiveLEB128(bool Signed) {
+ CheckForValidSection();
+ const MCExpr *Value;
+
+ if (ParseExpression(Value))
return true;
- if (getLexer().isNot(AsmToken::Comma))
+ if (getLexer().isNot(AsmToken::EndOfStatement))
return TokError("unexpected token in directive");
- Lex();
- int64_t Offset = 0;
- if (getParser().ParseAbsoluteExpression(Offset))
- return true;
+ if (Signed)
+ getStreamer().EmitSLEB128Value(Value);
+ else
+ getStreamer().EmitULEB128Value(Value);
- getStreamer().EmitCFIDefCfa(Register, Offset);
return false;
}
-/// ParseDirectiveCFIDefCfaOffset
-/// ::= .cfi_def_cfa_offset offset
-bool GenericAsmParser::ParseDirectiveCFIDefCfaOffset(StringRef,
- SMLoc DirectiveLoc) {
- int64_t Offset = 0;
- if (getParser().ParseAbsoluteExpression(Offset))
- return true;
+/// ParseDirectiveSymbolAttribute
+/// ::= { ".globl", ".weak", ... } [ identifier ( , identifier )* ]
+bool AsmParser::ParseDirectiveSymbolAttribute(MCSymbolAttr Attr) {
+ if (getLexer().isNot(AsmToken::EndOfStatement)) {
+ for (;;) {
+ StringRef Name;
+ SMLoc Loc = getTok().getLoc();
- getStreamer().EmitCFIDefCfaOffset(Offset);
- return false;
-}
+ if (ParseIdentifier(Name))
+ return Error(Loc, "expected identifier in directive");
-/// ParseDirectiveCFIAdjustCfaOffset
-/// ::= .cfi_adjust_cfa_offset adjustment
-bool GenericAsmParser::ParseDirectiveCFIAdjustCfaOffset(StringRef,
- SMLoc DirectiveLoc) {
- int64_t Adjustment = 0;
- if (getParser().ParseAbsoluteExpression(Adjustment))
- return true;
+ MCSymbol *Sym = getContext().GetOrCreateSymbol(Name);
- getStreamer().EmitCFIAdjustCfaOffset(Adjustment);
- return false;
-}
+ // Assembler local symbols don't make any sense here. Complain loudly.
+ if (Sym->isTemporary())
+ return Error(Loc, "non-local symbol required in directive");
-/// ParseDirectiveCFIDefCfaRegister
-/// ::= .cfi_def_cfa_register register
-bool GenericAsmParser::ParseDirectiveCFIDefCfaRegister(StringRef,
- SMLoc DirectiveLoc) {
- int64_t Register = 0;
- if (ParseRegisterOrRegisterNumber(Register, DirectiveLoc))
- return true;
+ getStreamer().EmitSymbolAttribute(Sym, Attr);
- getStreamer().EmitCFIDefCfaRegister(Register);
+ if (getLexer().is(AsmToken::EndOfStatement))
+ break;
+
+ if (getLexer().isNot(AsmToken::Comma))
+ return TokError("unexpected token in directive");
+ Lex();
+ }
+ }
+
+ Lex();
return false;
}
-/// ParseDirectiveCFIOffset
-/// ::= .cfi_offset register, offset
-bool GenericAsmParser::ParseDirectiveCFIOffset(StringRef, SMLoc DirectiveLoc) {
- int64_t Register = 0;
- int64_t Offset = 0;
+/// ParseDirectiveComm
+/// ::= ( .comm | .lcomm ) identifier , size_expression [ , align_expression ]
+bool AsmParser::ParseDirectiveComm(bool IsLocal) {
+ CheckForValidSection();
- if (ParseRegisterOrRegisterNumber(Register, DirectiveLoc))
- return true;
+ SMLoc IDLoc = getLexer().getLoc();
+ StringRef Name;
+ if (ParseIdentifier(Name))
+ return TokError("expected identifier in directive");
+
+ // Handle the identifier as the key symbol.
+ MCSymbol *Sym = getContext().GetOrCreateSymbol(Name);
if (getLexer().isNot(AsmToken::Comma))
return TokError("unexpected token in directive");
Lex();
- if (getParser().ParseAbsoluteExpression(Offset))
+ int64_t Size;
+ SMLoc SizeLoc = getLexer().getLoc();
+ if (ParseAbsoluteExpression(Size))
return true;
- getStreamer().EmitCFIOffset(Register, Offset);
- return false;
-}
+ int64_t Pow2Alignment = 0;
+ SMLoc Pow2AlignmentLoc;
+ if (getLexer().is(AsmToken::Comma)) {
+ Lex();
+ Pow2AlignmentLoc = getLexer().getLoc();
+ if (ParseAbsoluteExpression(Pow2Alignment))
+ return true;
-/// ParseDirectiveCFIRelOffset
-/// ::= .cfi_rel_offset register, offset
-bool GenericAsmParser::ParseDirectiveCFIRelOffset(StringRef,
- SMLoc DirectiveLoc) {
- int64_t Register = 0;
+ LCOMM::LCOMMType LCOMM = Lexer.getMAI().getLCOMMDirectiveAlignmentType();
+ if (IsLocal && LCOMM == LCOMM::NoAlignment)
+ return Error(Pow2AlignmentLoc, "alignment not supported on this target");
- if (ParseRegisterOrRegisterNumber(Register, DirectiveLoc))
- return true;
+ // If this target takes alignments in bytes (not log) validate and convert.
+ if ((!IsLocal && Lexer.getMAI().getCOMMDirectiveAlignmentIsInBytes()) ||
+ (IsLocal && LCOMM == LCOMM::ByteAlignment)) {
+ if (!isPowerOf2_64(Pow2Alignment))
+ return Error(Pow2AlignmentLoc, "alignment must be a power of 2");
+ Pow2Alignment = Log2_64(Pow2Alignment);
+ }
+ }
+
+ if (getLexer().isNot(AsmToken::EndOfStatement))
+ return TokError("unexpected token in '.comm' or '.lcomm' directive");
- if (getLexer().isNot(AsmToken::Comma))
- return TokError("unexpected token in directive");
Lex();
- int64_t Offset = 0;
- if (getParser().ParseAbsoluteExpression(Offset))
- return true;
+ // NOTE: a size of zero for a .comm should create a undefined symbol
+ // but a size of .lcomm creates a bss symbol of size zero.
+ if (Size < 0)
+ return Error(SizeLoc, "invalid '.comm' or '.lcomm' directive size, can't "
+ "be less than zero");
- getStreamer().EmitCFIRelOffset(Register, Offset);
+ // NOTE: The alignment in the directive is a power of 2 value, the assembler
+ // may internally end up wanting an alignment in bytes.
+ // FIXME: Diagnose overflow.
+ if (Pow2Alignment < 0)
+ return Error(Pow2AlignmentLoc, "invalid '.comm' or '.lcomm' directive "
+ "alignment, can't be less than zero");
+
+ if (!Sym->isUndefined())
+ return Error(IDLoc, "invalid symbol redefinition");
+
+ // Create the Symbol as a common or local common with Size and Pow2Alignment
+ if (IsLocal) {
+ getStreamer().EmitLocalCommonSymbol(Sym, Size, 1 << Pow2Alignment);
+ return false;
+ }
+
+ getStreamer().EmitCommonSymbol(Sym, Size, 1 << Pow2Alignment);
return false;
}
-static bool isValidEncoding(int64_t Encoding) {
- if (Encoding & ~0xff)
- return false;
+/// ParseDirectiveAbort
+/// ::= .abort [... message ...]
+bool AsmParser::ParseDirectiveAbort() {
+ // FIXME: Use loc from directive.
+ SMLoc Loc = getLexer().getLoc();
- if (Encoding == dwarf::DW_EH_PE_omit)
- return true;
+ StringRef Str = ParseStringToEndOfStatement();
+ if (getLexer().isNot(AsmToken::EndOfStatement))
+ return TokError("unexpected token in '.abort' directive");
- const unsigned Format = Encoding & 0xf;
- if (Format != dwarf::DW_EH_PE_absptr && Format != dwarf::DW_EH_PE_udata2 &&
- Format != dwarf::DW_EH_PE_udata4 && Format != dwarf::DW_EH_PE_udata8 &&
- Format != dwarf::DW_EH_PE_sdata2 && Format != dwarf::DW_EH_PE_sdata4 &&
- Format != dwarf::DW_EH_PE_sdata8 && Format != dwarf::DW_EH_PE_signed)
- return false;
+ Lex();
- const unsigned Application = Encoding & 0x70;
- if (Application != dwarf::DW_EH_PE_absptr &&
- Application != dwarf::DW_EH_PE_pcrel)
- return false;
+ if (Str.empty())
+ Error(Loc, ".abort detected. Assembly stopping.");
+ else
+ Error(Loc, ".abort '" + Str + "' detected. Assembly stopping.");
+ // FIXME: Actually abort assembly here.
- return true;
+ return false;
}
-/// ParseDirectiveCFIPersonalityOrLsda
-/// ::= .cfi_personality encoding, [symbol_name]
-/// ::= .cfi_lsda encoding, [symbol_name]
-bool GenericAsmParser::ParseDirectiveCFIPersonalityOrLsda(StringRef IDVal,
- SMLoc DirectiveLoc) {
- int64_t Encoding = 0;
- if (getParser().ParseAbsoluteExpression(Encoding))
- return true;
- if (Encoding == dwarf::DW_EH_PE_omit)
- return false;
-
- if (!isValidEncoding(Encoding))
- return TokError("unsupported encoding.");
+/// ParseDirectiveInclude
+/// ::= .include "filename"
+bool AsmParser::ParseDirectiveInclude() {
+ if (getLexer().isNot(AsmToken::String))
+ return TokError("expected string in '.include' directive");
- if (getLexer().isNot(AsmToken::Comma))
- return TokError("unexpected token in directive");
+ std::string Filename = getTok().getString();
+ SMLoc IncludeLoc = getLexer().getLoc();
Lex();
- StringRef Name;
- if (getParser().ParseIdentifier(Name))
- return TokError("expected identifier in directive");
+ if (getLexer().isNot(AsmToken::EndOfStatement))
+ return TokError("unexpected token in '.include' directive");
- MCSymbol *Sym = getContext().GetOrCreateSymbol(Name);
+ // Strip the quotes.
+ Filename = Filename.substr(1, Filename.size()-2);
- if (IDVal == ".cfi_personality")
- getStreamer().EmitCFIPersonality(Sym, Encoding);
- else {
- assert(IDVal == ".cfi_lsda");
- getStreamer().EmitCFILsda(Sym, Encoding);
+ // Attempt to switch the lexer to the included file before consuming the end
+ // of statement to avoid losing it when we switch.
+ if (EnterIncludeFile(Filename)) {
+ Error(IncludeLoc, "Could not find include file '" + Filename + "'");
+ return true;
}
- return false;
-}
-
-/// ParseDirectiveCFIRememberState
-/// ::= .cfi_remember_state
-bool GenericAsmParser::ParseDirectiveCFIRememberState(StringRef IDVal,
- SMLoc DirectiveLoc) {
- getStreamer().EmitCFIRememberState();
- return false;
-}
-/// ParseDirectiveCFIRestoreState
-/// ::= .cfi_remember_state
-bool GenericAsmParser::ParseDirectiveCFIRestoreState(StringRef IDVal,
- SMLoc DirectiveLoc) {
- getStreamer().EmitCFIRestoreState();
return false;
}
-/// ParseDirectiveCFISameValue
-/// ::= .cfi_same_value register
-bool GenericAsmParser::ParseDirectiveCFISameValue(StringRef IDVal,
- SMLoc DirectiveLoc) {
- int64_t Register = 0;
+/// ParseDirectiveIncbin
+/// ::= .incbin "filename"
+bool AsmParser::ParseDirectiveIncbin() {
+ if (getLexer().isNot(AsmToken::String))
+ return TokError("expected string in '.incbin' directive");
- if (ParseRegisterOrRegisterNumber(Register, DirectiveLoc))
- return true;
+ std::string Filename = getTok().getString();
+ SMLoc IncbinLoc = getLexer().getLoc();
+ Lex();
- getStreamer().EmitCFISameValue(Register);
+ if (getLexer().isNot(AsmToken::EndOfStatement))
+ return TokError("unexpected token in '.incbin' directive");
- return false;
-}
+ // Strip the quotes.
+ Filename = Filename.substr(1, Filename.size()-2);
-/// ParseDirectiveCFIRestore
-/// ::= .cfi_restore register
-bool GenericAsmParser::ParseDirectiveCFIRestore(StringRef IDVal,
- SMLoc DirectiveLoc) {
- int64_t Register = 0;
- if (ParseRegisterOrRegisterNumber(Register, DirectiveLoc))
+ // Attempt to process the included file.
+ if (ProcessIncbinFile(Filename)) {
+ Error(IncbinLoc, "Could not find incbin file '" + Filename + "'");
return true;
-
- getStreamer().EmitCFIRestore(Register);
+ }
return false;
}
-/// ParseDirectiveCFIEscape
-/// ::= .cfi_escape expression[,...]
-bool GenericAsmParser::ParseDirectiveCFIEscape(StringRef IDVal,
- SMLoc DirectiveLoc) {
- std::string Values;
- int64_t CurrValue;
- if (getParser().ParseAbsoluteExpression(CurrValue))
- return true;
+/// ParseDirectiveIf
+/// ::= .if expression
+bool AsmParser::ParseDirectiveIf(SMLoc DirectiveLoc) {
+ TheCondStack.push_back(TheCondState);
+ TheCondState.TheCond = AsmCond::IfCond;
+ if (TheCondState.Ignore) {
+ EatToEndOfStatement();
+ } else {
+ int64_t ExprValue;
+ if (ParseAbsoluteExpression(ExprValue))
+ return true;
- Values.push_back((uint8_t)CurrValue);
+ if (getLexer().isNot(AsmToken::EndOfStatement))
+ return TokError("unexpected token in '.if' directive");
- while (getLexer().is(AsmToken::Comma)) {
Lex();
- if (getParser().ParseAbsoluteExpression(CurrValue))
- return true;
-
- Values.push_back((uint8_t)CurrValue);
+ TheCondState.CondMet = ExprValue;
+ TheCondState.Ignore = !TheCondState.CondMet;
}
- getStreamer().EmitCFIEscape(Values);
return false;
}
-/// ParseDirectiveCFISignalFrame
-/// ::= .cfi_signal_frame
-bool GenericAsmParser::ParseDirectiveCFISignalFrame(StringRef Directive,
- SMLoc DirectiveLoc) {
- if (getLexer().isNot(AsmToken::EndOfStatement))
- return Error(getLexer().getLoc(),
- "unexpected token in '" + Directive + "' directive");
-
- getStreamer().EmitCFISignalFrame();
+/// ParseDirectiveIfb
+/// ::= .ifb string
+bool AsmParser::ParseDirectiveIfb(SMLoc DirectiveLoc, bool ExpectBlank) {
+ TheCondStack.push_back(TheCondState);
+ TheCondState.TheCond = AsmCond::IfCond;
- return false;
-}
+ if (TheCondState.Ignore) {
+ EatToEndOfStatement();
+ } else {
+ StringRef Str = ParseStringToEndOfStatement();
-/// ParseDirectiveCFIUndefined
-/// ::= .cfi_undefined register
-bool GenericAsmParser::ParseDirectiveCFIUndefined(StringRef Directive,
- SMLoc DirectiveLoc) {
- int64_t Register = 0;
+ if (getLexer().isNot(AsmToken::EndOfStatement))
+ return TokError("unexpected token in '.ifb' directive");
- if (ParseRegisterOrRegisterNumber(Register, DirectiveLoc))
- return true;
+ Lex();
- getStreamer().EmitCFIUndefined(Register);
+ TheCondState.CondMet = ExpectBlank == Str.empty();
+ TheCondState.Ignore = !TheCondState.CondMet;
+ }
return false;
}
-/// ParseDirectiveCFIRegister
-/// ::= .cfi_register register, register
-bool GenericAsmParser::ParseDirectiveCFIRegister(StringRef Directive,
- SMLoc DirectiveLoc) {
- int64_t Register1 = 0;
-
- if (ParseRegisterOrRegisterNumber(Register1, DirectiveLoc))
- return true;
+/// ParseDirectiveIfc
+/// ::= .ifc string1, string2
+bool AsmParser::ParseDirectiveIfc(SMLoc DirectiveLoc, bool ExpectEqual) {
+ TheCondStack.push_back(TheCondState);
+ TheCondState.TheCond = AsmCond::IfCond;
- if (getLexer().isNot(AsmToken::Comma))
- return TokError("unexpected token in directive");
- Lex();
+ if (TheCondState.Ignore) {
+ EatToEndOfStatement();
+ } else {
+ StringRef Str1 = ParseStringToComma();
- int64_t Register2 = 0;
+ if (getLexer().isNot(AsmToken::Comma))
+ return TokError("unexpected token in '.ifc' directive");
- if (ParseRegisterOrRegisterNumber(Register2, DirectiveLoc))
- return true;
+ Lex();
- getStreamer().EmitCFIRegister(Register1, Register2);
+ StringRef Str2 = ParseStringToEndOfStatement();
- return false;
-}
+ if (getLexer().isNot(AsmToken::EndOfStatement))
+ return TokError("unexpected token in '.ifc' directive");
-/// ParseDirectiveMacrosOnOff
-/// ::= .macros_on
-/// ::= .macros_off
-bool GenericAsmParser::ParseDirectiveMacrosOnOff(StringRef Directive,
- SMLoc DirectiveLoc) {
- if (getLexer().isNot(AsmToken::EndOfStatement))
- return Error(getLexer().getLoc(),
- "unexpected token in '" + Directive + "' directive");
+ Lex();
- getParser().SetMacrosEnabled(Directive == ".macros_on");
+ TheCondState.CondMet = ExpectEqual == (Str1 == Str2);
+ TheCondState.Ignore = !TheCondState.CondMet;
+ }
return false;
}
-/// ParseDirectiveMacro
-/// ::= .macro name [parameters]
-bool GenericAsmParser::ParseDirectiveMacro(StringRef Directive,
- SMLoc DirectiveLoc) {
+/// ParseDirectiveIfdef
+/// ::= .ifdef symbol
+bool AsmParser::ParseDirectiveIfdef(SMLoc DirectiveLoc, bool expect_defined) {
StringRef Name;
- if (getParser().ParseIdentifier(Name))
- return TokError("expected identifier in '.macro' directive");
+ TheCondStack.push_back(TheCondState);
+ TheCondState.TheCond = AsmCond::IfCond;
- MCAsmMacroParameters Parameters;
- // Argument delimiter is initially unknown. It will be set by
- // ParseMacroArgument()
- AsmToken::TokenKind ArgumentDelimiter = AsmToken::Eof;
- if (getLexer().isNot(AsmToken::EndOfStatement)) {
- for (;;) {
- MCAsmMacroParameter Parameter;
- if (getParser().ParseIdentifier(Parameter.first))
- return TokError("expected identifier in '.macro' directive");
+ if (TheCondState.Ignore) {
+ EatToEndOfStatement();
+ } else {
+ if (ParseIdentifier(Name))
+ return TokError("expected identifier after '.ifdef'");
- if (getLexer().is(AsmToken::Equal)) {
- Lex();
- if (getParser().ParseMacroArgument(Parameter.second, ArgumentDelimiter))
- return true;
- }
+ Lex();
- Parameters.push_back(Parameter);
+ MCSymbol *Sym = getContext().LookupSymbol(Name);
- if (getLexer().is(AsmToken::Comma))
- Lex();
- else if (getLexer().is(AsmToken::EndOfStatement))
- break;
- }
+ if (expect_defined)
+ TheCondState.CondMet = (Sym != NULL && !Sym->isUndefined());
+ else
+ TheCondState.CondMet = (Sym == NULL || Sym->isUndefined());
+ TheCondState.Ignore = !TheCondState.CondMet;
}
- // Eat the end of statement.
- Lex();
-
- AsmToken EndToken, StartToken = getTok();
-
- // Lex the macro definition.
- for (;;) {
- // Check whether we have reached the end of the file.
- if (getLexer().is(AsmToken::Eof))
- return Error(DirectiveLoc, "no matching '.endmacro' in definition");
+ return false;
+}
- // Otherwise, check whether we have reach the .endmacro.
- if (getLexer().is(AsmToken::Identifier) &&
- (getTok().getIdentifier() == ".endm" ||
- getTok().getIdentifier() == ".endmacro")) {
- EndToken = getTok();
- Lex();
- if (getLexer().isNot(AsmToken::EndOfStatement))
- return TokError("unexpected token in '" + EndToken.getIdentifier() +
- "' directive");
- break;
- }
+/// ParseDirectiveElseIf
+/// ::= .elseif expression
+bool AsmParser::ParseDirectiveElseIf(SMLoc DirectiveLoc) {
+ if (TheCondState.TheCond != AsmCond::IfCond &&
+ TheCondState.TheCond != AsmCond::ElseIfCond)
+ Error(DirectiveLoc, "Encountered a .elseif that doesn't follow a .if or "
+ " an .elseif");
+ TheCondState.TheCond = AsmCond::ElseIfCond;
- // Otherwise, scan til the end of the statement.
- getParser().EatToEndOfStatement();
+ bool LastIgnoreState = false;
+ if (!TheCondStack.empty())
+ LastIgnoreState = TheCondStack.back().Ignore;
+ if (LastIgnoreState || TheCondState.CondMet) {
+ TheCondState.Ignore = true;
+ EatToEndOfStatement();
}
+ else {
+ int64_t ExprValue;
+ if (ParseAbsoluteExpression(ExprValue))
+ return true;
- if (getParser().LookupMacro(Name)) {
- return Error(DirectiveLoc, "macro '" + Name + "' is already defined");
+ if (getLexer().isNot(AsmToken::EndOfStatement))
+ return TokError("unexpected token in '.elseif' directive");
+
+ Lex();
+ TheCondState.CondMet = ExprValue;
+ TheCondState.Ignore = !TheCondState.CondMet;
}
- const char *BodyStart = StartToken.getLoc().getPointer();
- const char *BodyEnd = EndToken.getLoc().getPointer();
- StringRef Body = StringRef(BodyStart, BodyEnd - BodyStart);
- getParser().DefineMacro(Name, MCAsmMacro(Name, Body, Parameters));
return false;
}
-/// ParseDirectiveEndMacro
-/// ::= .endm
-/// ::= .endmacro
-bool GenericAsmParser::ParseDirectiveEndMacro(StringRef Directive,
- SMLoc DirectiveLoc) {
+/// ParseDirectiveElse
+/// ::= .else
+bool AsmParser::ParseDirectiveElse(SMLoc DirectiveLoc) {
if (getLexer().isNot(AsmToken::EndOfStatement))
- return TokError("unexpected token in '" + Directive + "' directive");
-
- // If we are inside a macro instantiation, terminate the current
- // instantiation.
- if (getParser().InsideMacroInstantiation()) {
- getParser().HandleMacroExit();
- return false;
- }
-
- // Otherwise, this .endmacro is a stray entry in the file; well formed
- // .endmacro directives are handled during the macro definition parsing.
- return TokError("unexpected '" + Directive + "' in file, "
- "no current macro definition");
-}
-
-/// ParseDirectivePurgeMacro
-/// ::= .purgem
-bool GenericAsmParser::ParseDirectivePurgeMacro(StringRef Directive,
- SMLoc DirectiveLoc) {
- StringRef Name;
- if (getParser().ParseIdentifier(Name))
- return TokError("expected identifier in '.purgem' directive");
+ return TokError("unexpected token in '.else' directive");
- if (getLexer().isNot(AsmToken::EndOfStatement))
- return TokError("unexpected token in '.purgem' directive");
+ Lex();
- if (!getParser().LookupMacro(Name))
- return Error(DirectiveLoc, "macro '" + Name + "' is not defined");
+ if (TheCondState.TheCond != AsmCond::IfCond &&
+ TheCondState.TheCond != AsmCond::ElseIfCond)
+ Error(DirectiveLoc, "Encountered a .else that doesn't follow a .if or an "
+ ".elseif");
+ TheCondState.TheCond = AsmCond::ElseCond;
+ bool LastIgnoreState = false;
+ if (!TheCondStack.empty())
+ LastIgnoreState = TheCondStack.back().Ignore;
+ if (LastIgnoreState || TheCondState.CondMet)
+ TheCondState.Ignore = true;
+ else
+ TheCondState.Ignore = false;
- getParser().UndefineMacro(Name);
return false;
}
-bool GenericAsmParser::ParseDirectiveLEB128(StringRef DirName, SMLoc) {
- getParser().CheckForValidSection();
-
- const MCExpr *Value;
-
- if (getParser().ParseExpression(Value))
- return true;
-
+/// ParseDirectiveEndIf
+/// ::= .endif
+bool AsmParser::ParseDirectiveEndIf(SMLoc DirectiveLoc) {
if (getLexer().isNot(AsmToken::EndOfStatement))
- return TokError("unexpected token in directive");
+ return TokError("unexpected token in '.endif' directive");
- if (DirName[1] == 's')
- getStreamer().EmitSLEB128Value(Value);
- else
- getStreamer().EmitULEB128Value(Value);
+ Lex();
+
+ if ((TheCondState.TheCond == AsmCond::NoCond) ||
+ TheCondStack.empty())
+ Error(DirectiveLoc, "Encountered a .endif that doesn't follow a .if or "
+ ".else");
+ if (!TheCondStack.empty()) {
+ TheCondState = TheCondStack.back();
+ TheCondStack.pop_back();
+ }
return false;
}
+void AsmParser::initializeDirectiveKindMap() {
+ DirectiveKindMap[".set"] = DK_SET;
+ DirectiveKindMap[".equ"] = DK_EQU;
+ DirectiveKindMap[".equiv"] = DK_EQUIV;
+ DirectiveKindMap[".ascii"] = DK_ASCII;
+ DirectiveKindMap[".asciz"] = DK_ASCIZ;
+ DirectiveKindMap[".string"] = DK_STRING;
+ DirectiveKindMap[".byte"] = DK_BYTE;
+ DirectiveKindMap[".short"] = DK_SHORT;
+ DirectiveKindMap[".value"] = DK_VALUE;
+ DirectiveKindMap[".2byte"] = DK_2BYTE;
+ DirectiveKindMap[".long"] = DK_LONG;
+ DirectiveKindMap[".int"] = DK_INT;
+ DirectiveKindMap[".4byte"] = DK_4BYTE;
+ DirectiveKindMap[".quad"] = DK_QUAD;
+ DirectiveKindMap[".8byte"] = DK_8BYTE;
+ DirectiveKindMap[".single"] = DK_SINGLE;
+ DirectiveKindMap[".float"] = DK_FLOAT;
+ DirectiveKindMap[".double"] = DK_DOUBLE;
+ DirectiveKindMap[".align"] = DK_ALIGN;
+ DirectiveKindMap[".align32"] = DK_ALIGN32;
+ DirectiveKindMap[".balign"] = DK_BALIGN;
+ DirectiveKindMap[".balignw"] = DK_BALIGNW;
+ DirectiveKindMap[".balignl"] = DK_BALIGNL;
+ DirectiveKindMap[".p2align"] = DK_P2ALIGN;
+ DirectiveKindMap[".p2alignw"] = DK_P2ALIGNW;
+ DirectiveKindMap[".p2alignl"] = DK_P2ALIGNL;
+ DirectiveKindMap[".org"] = DK_ORG;
+ DirectiveKindMap[".fill"] = DK_FILL;
+ DirectiveKindMap[".zero"] = DK_ZERO;
+ DirectiveKindMap[".extern"] = DK_EXTERN;
+ DirectiveKindMap[".globl"] = DK_GLOBL;
+ DirectiveKindMap[".global"] = DK_GLOBAL;
+ DirectiveKindMap[".indirect_symbol"] = DK_INDIRECT_SYMBOL;
+ DirectiveKindMap[".lazy_reference"] = DK_LAZY_REFERENCE;
+ DirectiveKindMap[".no_dead_strip"] = DK_NO_DEAD_STRIP;
+ DirectiveKindMap[".symbol_resolver"] = DK_SYMBOL_RESOLVER;
+ DirectiveKindMap[".private_extern"] = DK_PRIVATE_EXTERN;
+ DirectiveKindMap[".reference"] = DK_REFERENCE;
+ DirectiveKindMap[".weak_definition"] = DK_WEAK_DEFINITION;
+ DirectiveKindMap[".weak_reference"] = DK_WEAK_REFERENCE;
+ DirectiveKindMap[".weak_def_can_be_hidden"] = DK_WEAK_DEF_CAN_BE_HIDDEN;
+ DirectiveKindMap[".comm"] = DK_COMM;
+ DirectiveKindMap[".common"] = DK_COMMON;
+ DirectiveKindMap[".lcomm"] = DK_LCOMM;
+ DirectiveKindMap[".abort"] = DK_ABORT;
+ DirectiveKindMap[".include"] = DK_INCLUDE;
+ DirectiveKindMap[".incbin"] = DK_INCBIN;
+ DirectiveKindMap[".code16"] = DK_CODE16;
+ DirectiveKindMap[".code16gcc"] = DK_CODE16GCC;
+ DirectiveKindMap[".rept"] = DK_REPT;
+ DirectiveKindMap[".irp"] = DK_IRP;
+ DirectiveKindMap[".irpc"] = DK_IRPC;
+ DirectiveKindMap[".endr"] = DK_ENDR;
+ DirectiveKindMap[".bundle_align_mode"] = DK_BUNDLE_ALIGN_MODE;
+ DirectiveKindMap[".bundle_lock"] = DK_BUNDLE_LOCK;
+ DirectiveKindMap[".bundle_unlock"] = DK_BUNDLE_UNLOCK;
+ DirectiveKindMap[".if"] = DK_IF;
+ DirectiveKindMap[".ifb"] = DK_IFB;
+ DirectiveKindMap[".ifnb"] = DK_IFNB;
+ DirectiveKindMap[".ifc"] = DK_IFC;
+ DirectiveKindMap[".ifnc"] = DK_IFNC;
+ DirectiveKindMap[".ifdef"] = DK_IFDEF;
+ DirectiveKindMap[".ifndef"] = DK_IFNDEF;
+ DirectiveKindMap[".ifnotdef"] = DK_IFNOTDEF;
+ DirectiveKindMap[".elseif"] = DK_ELSEIF;
+ DirectiveKindMap[".else"] = DK_ELSE;
+ DirectiveKindMap[".endif"] = DK_ENDIF;
+ DirectiveKindMap[".skip"] = DK_SKIP;
+ DirectiveKindMap[".space"] = DK_SPACE;
+ DirectiveKindMap[".file"] = DK_FILE;
+ DirectiveKindMap[".line"] = DK_LINE;
+ DirectiveKindMap[".loc"] = DK_LOC;
+ DirectiveKindMap[".stabs"] = DK_STABS;
+ DirectiveKindMap[".sleb128"] = DK_SLEB128;
+ DirectiveKindMap[".uleb128"] = DK_ULEB128;
+ DirectiveKindMap[".cfi_sections"] = DK_CFI_SECTIONS;
+ DirectiveKindMap[".cfi_startproc"] = DK_CFI_STARTPROC;
+ DirectiveKindMap[".cfi_endproc"] = DK_CFI_ENDPROC;
+ DirectiveKindMap[".cfi_def_cfa"] = DK_CFI_DEF_CFA;
+ DirectiveKindMap[".cfi_def_cfa_offset"] = DK_CFI_DEF_CFA_OFFSET;
+ DirectiveKindMap[".cfi_adjust_cfa_offset"] = DK_CFI_ADJUST_CFA_OFFSET;
+ DirectiveKindMap[".cfi_def_cfa_register"] = DK_CFI_DEF_CFA_REGISTER;
+ DirectiveKindMap[".cfi_offset"] = DK_CFI_OFFSET;
+ DirectiveKindMap[".cfi_rel_offset"] = DK_CFI_REL_OFFSET;
+ DirectiveKindMap[".cfi_personality"] = DK_CFI_PERSONALITY;
+ DirectiveKindMap[".cfi_lsda"] = DK_CFI_LSDA;
+ DirectiveKindMap[".cfi_remember_state"] = DK_CFI_REMEMBER_STATE;
+ DirectiveKindMap[".cfi_restore_state"] = DK_CFI_RESTORE_STATE;
+ DirectiveKindMap[".cfi_same_value"] = DK_CFI_SAME_VALUE;
+ DirectiveKindMap[".cfi_restore"] = DK_CFI_RESTORE;
+ DirectiveKindMap[".cfi_escape"] = DK_CFI_ESCAPE;
+ DirectiveKindMap[".cfi_signal_frame"] = DK_CFI_SIGNAL_FRAME;
+ DirectiveKindMap[".cfi_undefined"] = DK_CFI_UNDEFINED;
+ DirectiveKindMap[".cfi_register"] = DK_CFI_REGISTER;
+ DirectiveKindMap[".macros_on"] = DK_MACROS_ON;
+ DirectiveKindMap[".macros_off"] = DK_MACROS_OFF;
+ DirectiveKindMap[".macro"] = DK_MACRO;
+ DirectiveKindMap[".endm"] = DK_ENDM;
+ DirectiveKindMap[".endmacro"] = DK_ENDMACRO;
+ DirectiveKindMap[".purgem"] = DK_PURGEM;
+}
+
+
MCAsmMacro *AsmParser::ParseMacroLikeBody(SMLoc DirectiveLoc) {
AsmToken EndToken, StartToken = getTok();
projects / oota-llvm.git / blobdiff