diff options
| -rw-r--r-- | lib/MC/MCParser/AsmParser.cpp | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/lib/MC/MCParser/AsmParser.cpp b/lib/MC/MCParser/AsmParser.cpp index 3632c93..933b75e 100644 --- a/lib/MC/MCParser/AsmParser.cpp +++ b/lib/MC/MCParser/AsmParser.cpp @@ -238,6 +238,22 @@ public: AddDirectiveHandler<&GenericAsmParser::ParseDirectiveLoc>(".loc"); AddDirectiveHandler<&GenericAsmParser::ParseDirectiveStabs>(".stabs"); + // CFI directives. + AddDirectiveHandler<&GenericAsmParser::ParseDirectiveCFIStartProc>( + ".cfi_startproc"); + AddDirectiveHandler<&GenericAsmParser::ParseDirectiveCFIEndProc>( + ".cfi_endproc"); + AddDirectiveHandler<&GenericAsmParser::ParseDirectiveCFIDefCfaOffset>( + ".cfi_def_cfa_offset"); + AddDirectiveHandler<&GenericAsmParser::ParseDirectiveCFIDefCfaRegister>( + ".cfi_def_cfa_register"); + AddDirectiveHandler<&GenericAsmParser::ParseDirectiveCFIOffset>( + ".cfi_offset"); + AddDirectiveHandler< + &GenericAsmParser::ParseDirectiveCFIPersonalityOrLsda>(".cfi_personality"); + AddDirectiveHandler< + &GenericAsmParser::ParseDirectiveCFIPersonalityOrLsda>(".cfi_lsda"); + // Macro directives. AddDirectiveHandler<&GenericAsmParser::ParseDirectiveMacrosOnOff>( ".macros_on"); @@ -255,6 +271,12 @@ public: bool ParseDirectiveLine(StringRef, SMLoc DirectiveLoc); bool ParseDirectiveLoc(StringRef, SMLoc DirectiveLoc); bool ParseDirectiveStabs(StringRef, SMLoc DirectiveLoc); + bool ParseDirectiveCFIStartProc(StringRef, SMLoc DirectiveLoc); + bool ParseDirectiveCFIEndProc(StringRef, SMLoc DirectiveLoc); + bool ParseDirectiveCFIDefCfaOffset(StringRef, SMLoc DirectiveLoc); + bool ParseDirectiveCFIDefCfaRegister(StringRef, SMLoc DirectiveLoc); + bool ParseDirectiveCFIOffset(StringRef, SMLoc DirectiveLoc); + bool ParseDirectiveCFIPersonalityOrLsda(StringRef, SMLoc DirectiveLoc); bool ParseDirectiveMacrosOnOff(StringRef, SMLoc DirectiveLoc); bool ParseDirectiveMacro(StringRef, SMLoc DirectiveLoc); @@ -2116,6 +2138,79 @@ bool GenericAsmParser::ParseDirectiveStabs(StringRef Directive, return TokError("unsupported directive '" + Directive + "'"); } +/// ParseDirectiveCFIStartProc +/// ::= .cfi_startproc +bool GenericAsmParser::ParseDirectiveCFIStartProc(StringRef, + SMLoc DirectiveLoc) { + return false; +} + +/// ParseDirectiveCFIEndProc +/// ::= .cfi_endproc +bool GenericAsmParser::ParseDirectiveCFIEndProc(StringRef, SMLoc DirectiveLoc) { + return false; +} + +/// ParseDirectiveCFIDefCfaOffset +/// ::= .cfi_def_cfa_offset offset +bool GenericAsmParser::ParseDirectiveCFIDefCfaOffset(StringRef, + SMLoc DirectiveLoc) { + int64_t Offset = 0; + if (getParser().ParseAbsoluteExpression(Offset)) + return true; + + return false; +} + +/// ParseDirectiveCFIDefCfaRegister +/// ::= .cfi_def_cfa_register register +bool GenericAsmParser::ParseDirectiveCFIDefCfaRegister(StringRef, + SMLoc DirectiveLoc) { + int64_t Register = 0; + if (getParser().ParseAbsoluteExpression(Register)) + return true; + return false; +} + +/// ParseDirectiveCFIOffset +/// ::= .cfi_off register, offset +bool GenericAsmParser::ParseDirectiveCFIOffset(StringRef, SMLoc DirectiveLoc) { + int64_t Register = 0; + int64_t Offset = 0; + if (getParser().ParseAbsoluteExpression(Register)) + return true; + + if (getLexer().isNot(AsmToken::Comma)) + return TokError("unexpected token in directive"); + Lex(); + + if (getParser().ParseAbsoluteExpression(Offset)) + return true; + + return false; +} + +/// ParseDirectiveCFIPersonalityOrLsda +/// ::= .cfi_personality encoding, [symbol_name] +/// ::= .cfi_lsda encoding, [symbol_name] +bool GenericAsmParser::ParseDirectiveCFIPersonalityOrLsda(StringRef, + SMLoc DirectiveLoc) { + int64_t Encoding = 0; + if (getParser().ParseAbsoluteExpression(Encoding)) + return true; + if (Encoding == 255) + return false; + + if (getLexer().isNot(AsmToken::Comma)) + return TokError("unexpected token in directive"); + Lex(); + + StringRef Name; + if (getParser().ParseIdentifier(Name)) + return TokError("expected identifier in directive"); + return false; +} + /// ParseDirectiveMacrosOnOff /// ::= .macros_on /// ::= .macros_off |