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[MC/Mach-O] Add AsmParser support for .linker_option directive.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172778 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Dunbar
2013-01-18 01:25:48 +00:00
parent bfdcc70d34
commit cddd236e8a
4 changed files with 66 additions and 0 deletions
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30
lib/MC/MCParser/DarwinAsmParser.cpp
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@@ -87,6 +87,8 @@ public:
AddDirectiveHandler<
&DarwinAsmParser::ParseSectionDirectiveLazySymbolPointers>(
".lazy_symbol_pointer");
AddDirectiveHandler<&DarwinAsmParser::ParseDirectiveLinkerOption>(
".linker_option");
AddDirectiveHandler<&DarwinAsmParser::ParseSectionDirectiveLiteral16>(
".literal16");
AddDirectiveHandler<&DarwinAsmParser::ParseSectionDirectiveLiteral4>(
@@ -163,6 +165,7 @@ public:
bool ParseDirectiveDesc(StringRef, SMLoc);
bool ParseDirectiveDumpOrLoad(StringRef, SMLoc);
bool ParseDirectiveLsym(StringRef, SMLoc);
bool ParseDirectiveLinkerOption(StringRef, SMLoc);
bool ParseDirectiveSection(StringRef, SMLoc);
bool ParseDirectivePushSection(StringRef, SMLoc);
bool ParseDirectivePopSection(StringRef, SMLoc);
@@ -435,6 +438,33 @@ bool DarwinAsmParser::ParseDirectiveDumpOrLoad(StringRef Directive,
return Warning(IDLoc, "ignoring directive .load for now");
}
/// ParseDirectiveLinkerOption
/// ::= .linker_option "string" ( , "string" )*
bool DarwinAsmParser::ParseDirectiveLinkerOption(StringRef IDVal, SMLoc) {
SmallVector<std::string, 4> Args;
for (;;) {
if (getLexer().isNot(AsmToken::String))
return TokError("expected string in '" + Twine(IDVal) + "' directive");
std::string Data;
if (getParser().ParseEscapedString(Data))
return true;
Args.push_back(Data);
Lex();
if (getLexer().is(AsmToken::EndOfStatement))
break;
if (getLexer().isNot(AsmToken::Comma))
return TokError("unexpected token in '" + Twine(IDVal) + "' directive");
Lex();
}
getStreamer().EmitLinkerOptions(Args);
return false;
}
/// ParseDirectiveLsym
/// ::= .lsym identifier , expression
bool DarwinAsmParser::ParseDirectiveLsym(StringRef, SMLoc) {