Added llvm-mc support for parsing the .lsym directive.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75685 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvm-mc/AsmParser.cpp b/tools/llvm-mc/AsmParser.cpp
index d94b7b3..b4e0f57 100644
--- a/tools/llvm-mc/AsmParser.cpp
+++ b/tools/llvm-mc/AsmParser.cpp
@@ -528,6 +528,8 @@
return ParseDirectiveDarwinZerofill();
if (!strcmp(IDVal, ".desc"))
return ParseDirectiveDarwinSymbolDesc();
+ if (!strcmp(IDVal, ".lsym"))
+ return ParseDirectiveDarwinLsym();
if (!strcmp(IDVal, ".subsections_via_symbols"))
return ParseDirectiveDarwinSubsectionsViaSymbols();
@@ -1126,3 +1128,33 @@
return false;
}
+
+/// ParseDirectiveLsym
+/// ::= .lsym identifier , expression
+bool AsmParser::ParseDirectiveDarwinLsym() {
+ if (Lexer.isNot(asmtok::Identifier))
+ return TokError("expected identifier in directive");
+
+ // handle the identifier as the key symbol.
+ SMLoc IDLoc = Lexer.getLoc();
+ MCSymbol *Sym = Ctx.GetOrCreateSymbol(Lexer.getCurStrVal());
+ Lexer.Lex();
+
+ if (Lexer.isNot(asmtok::Comma))
+ return TokError("unexpected token in '.lsym' directive");
+ Lexer.Lex();
+
+ MCValue Expr;
+ if (ParseRelocatableExpression(Expr))
+ return true;
+
+ if (Lexer.isNot(asmtok::EndOfStatement))
+ return TokError("unexpected token in '.lsym' directive");
+
+ Lexer.Lex();
+
+ // Create the Sym with the value of the Expr
+ Out.EmitLocalSymbol(Sym, Expr);
+
+ return false;
+}