[MC/Mach-O] Add AsmParser support for .linker_option directive.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172778 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCParser/DarwinAsmParser.cpp b/lib/MC/MCParser/DarwinAsmParser.cpp
index 7fda7ac..9029c6d 100644
--- a/lib/MC/MCParser/DarwinAsmParser.cpp
+++ b/lib/MC/MCParser/DarwinAsmParser.cpp
@@ -87,6 +87,8 @@
AddDirectiveHandler<
&DarwinAsmParser::ParseSectionDirectiveLazySymbolPointers>(
".lazy_symbol_pointer");
+ AddDirectiveHandler<&DarwinAsmParser::ParseDirectiveLinkerOption>(
+ ".linker_option");
AddDirectiveHandler<&DarwinAsmParser::ParseSectionDirectiveLiteral16>(
".literal16");
AddDirectiveHandler<&DarwinAsmParser::ParseSectionDirectiveLiteral4>(
@@ -163,6 +165,7 @@
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 @@
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) {