Start of .sleb128/.uleb128 parsing support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108612 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCParser/ELFAsmParser.cpp b/lib/MC/MCParser/ELFAsmParser.cpp
index 340af23..8bbc8b3 100644
--- a/lib/MC/MCParser/ELFAsmParser.cpp
+++ b/lib/MC/MCParser/ELFAsmParser.cpp
@@ -8,6 +8,7 @@
//===----------------------------------------------------------------------===//
#include "llvm/MC/MCParser/MCAsmParserExtension.h"
+#include "llvm/ADT/Twine.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCParser/MCAsmLexer.h"
@@ -36,6 +37,10 @@
&ELFAsmParser::ParseDirectiveSection));
Parser.AddDirectiveHandler(this, ".size", MCAsmParser::DirectiveHandler(
&ELFAsmParser::ParseDirectiveSize));
+ Parser.AddDirectiveHandler(this, ".sleb128", MCAsmParser::DirectiveHandler(
+ &ELFAsmParser::ParseDirectiveLEB128));
+ Parser.AddDirectiveHandler(this, ".uleb128", MCAsmParser::DirectiveHandler(
+ &ELFAsmParser::ParseDirectiveLEB128));
}
bool ParseSectionDirectiveData(StringRef, SMLoc) {
@@ -48,6 +53,7 @@
MCSectionELF::SHF_EXECINSTR |
MCSectionELF::SHF_ALLOC, SectionKind::getText());
}
+ bool ParseDirectiveLEB128(StringRef, SMLoc);
bool ParseDirectiveSection(StringRef, SMLoc);
bool ParseDirectiveSize(StringRef, SMLoc);
};
@@ -191,6 +197,26 @@
return false;
}
+bool ELFAsmParser::ParseDirectiveLEB128(StringRef DirName, SMLoc) {
+ int64_t Value;
+ if (getParser().ParseAbsoluteExpression(Value))
+ return true;
+
+ if (getLexer().isNot(AsmToken::EndOfStatement))
+ return TokError("unexpected token in directive");
+
+ // FIXME: Add proper MC support.
+ if (getContext().getAsmInfo().hasLEB128()) {
+ if (DirName[1] == 's')
+ getStreamer().EmitRawText("\t.sleb128\t" + Twine(Value));
+ else
+ getStreamer().EmitRawText("\t.uleb128\t" + Twine(Value));
+ return false;
+ }
+ // FIXME: This shouldn't be an error!
+ return TokError("LEB128 not supported yet");
+}
+
namespace llvm {
MCAsmParserExtension *createELFAsmParser() {