Add basic CFI methods to the streamer interface.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119972 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCParser/AsmParser.cpp b/lib/MC/MCParser/AsmParser.cpp
index 63ddfb9..a03e496 100644
--- a/lib/MC/MCParser/AsmParser.cpp
+++ b/lib/MC/MCParser/AsmParser.cpp
@@ -2151,13 +2151,13 @@
/// ::= .cfi_startproc
bool GenericAsmParser::ParseDirectiveCFIStartProc(StringRef,
SMLoc DirectiveLoc) {
- return false;
+ return getStreamer().EmitCFIStartProc();
}
/// ParseDirectiveCFIEndProc
/// ::= .cfi_endproc
bool GenericAsmParser::ParseDirectiveCFIEndProc(StringRef, SMLoc DirectiveLoc) {
- return false;
+ return getStreamer().EmitCFIEndProc();
}
/// ParseDirectiveCFIDefCfaOffset
@@ -2168,7 +2168,7 @@
if (getParser().ParseAbsoluteExpression(Offset))
return true;
- return false;
+ return getStreamer().EmitCFIDefCfaOffset(Offset);
}
/// ParseDirectiveCFIDefCfaRegister
@@ -2178,7 +2178,8 @@
int64_t Register = 0;
if (getParser().ParseAbsoluteExpression(Register))
return true;
- return false;
+
+ return getStreamer().EmitCFIDefCfaRegister(Register);
}
/// ParseDirectiveCFIOffset
@@ -2196,13 +2197,13 @@
if (getParser().ParseAbsoluteExpression(Offset))
return true;
- return false;
+ return getStreamer().EmitCFIOffset(Register, Offset);
}
/// ParseDirectiveCFIPersonalityOrLsda
/// ::= .cfi_personality encoding, [symbol_name]
/// ::= .cfi_lsda encoding, [symbol_name]
-bool GenericAsmParser::ParseDirectiveCFIPersonalityOrLsda(StringRef,
+bool GenericAsmParser::ParseDirectiveCFIPersonalityOrLsda(StringRef IDVal,
SMLoc DirectiveLoc) {
int64_t Encoding = 0;
if (getParser().ParseAbsoluteExpression(Encoding))
@@ -2210,6 +2211,9 @@
if (Encoding == 255)
return false;
+ if (Encoding != 0)
+ return TokError("unsupported encoding.");
+
if (getLexer().isNot(AsmToken::Comma))
return TokError("unexpected token in directive");
Lex();
@@ -2217,7 +2221,15 @@
StringRef Name;
if (getParser().ParseIdentifier(Name))
return TokError("expected identifier in directive");
- return false;
+
+ MCSymbol *Sym = getContext().GetOrCreateSymbol(Name);
+
+ if (IDVal == ".cfi_personality")
+ return getStreamer().EmitCFIPersonality(Sym);
+ else {
+ assert(IDVal == ".cfi_lsda");
+ return getStreamer().EmitCFILsda(Sym);
+ }
}
/// ParseDirectiveMacrosOnOff