SourceMgr &SrcMgr;
MCAsmParserExtension *GenericParser;
MCAsmParserExtension *PlatformParser;
+ int64_t LastOffset;
/// This is the current buffer index we're lexing from as managed by the
/// SourceMgr object.
/// }
+ int64_t adjustLastOffset(int64_t Adjustment) {
+ LastOffset += Adjustment;
+ return LastOffset;
+ }
+ void setLastOffset(int64_t Offset) {
+ LastOffset = Offset;
+ }
+
private:
void CheckForValidSection();
".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>(
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 ParseDirectiveCFIPersonalityOrLsda(StringRef, SMLoc DirectiveLoc);
AsmParser::AsmParser(const Target &T, SourceMgr &_SM, MCContext &_Ctx,
MCStreamer &_Out, const MCAsmInfo &_MAI)
: Lexer(_MAI), Ctx(_Ctx), Out(_Out), SrcMgr(_SM),
- GenericParser(new GenericAsmParser), PlatformParser(0),
+ GenericParser(new GenericAsmParser), PlatformParser(0), LastOffset(0),
CurBuffer(0), MacrosEnabled(true) {
Lexer.setBuffer(SrcMgr.getMemoryBuffer(CurBuffer));
if (getParser().ParseAbsoluteExpression(Offset))
return true;
+ getParser().setLastOffset(Offset);
+
+ return getStreamer().EmitCFIDefCfaOffset(Offset);
+}
+
+/// ParseDirectiveCFIAdjustCfaOffset
+/// ::= .cfi_adjust_cfa_offset adjustment
+bool GenericAsmParser::ParseDirectiveCFIAdjustCfaOffset(StringRef,
+ SMLoc DirectiveLoc) {
+ int64_t Adjustment = 0;
+ if (getParser().ParseAbsoluteExpression(Adjustment))
+ return true;
+
+ int64_t Offset = getParser().adjustLastOffset(Adjustment);
+
return getStreamer().EmitCFIDefCfaOffset(Offset);
}