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MC/AsmParser: Move ELF specific parser to ELFAsmParser.cpp.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108196 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Dunbar 2010-07-12 21:23:32 +00:00
parent 9c23d7f25e
commit 5146a0970d
3 changed files with 71 additions and 43 deletions
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45
lib/MC/MCParser/AsmParser.cpp
View File

@ -18,7 +18,6 @@
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCSectionELF.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/MC/MCParser/MCParsedAsmOperand.h"
@ -55,40 +54,12 @@ public:
bool ParseDirectiveLoc(StringRef, SMLoc DirectiveLoc); // ".loc"
};
class ELFAsmParser : public MCAsmParserExtension {
bool ParseSectionSwitch(StringRef Section, unsigned Type,
unsigned Flags, SectionKind Kind);
public:
ELFAsmParser() {}
virtual void Initialize(MCAsmParser &Parser) {
// Call the base implementation.
this->MCAsmParserExtension::Initialize(Parser);
Parser.AddDirectiveHandler(this, ".data", MCAsmParser::DirectiveHandler(
&ELFAsmParser::ParseSectionDirectiveData));
Parser.AddDirectiveHandler(this, ".text", MCAsmParser::DirectiveHandler(
&ELFAsmParser::ParseSectionDirectiveText));
}
bool ParseSectionDirectiveData(StringRef, SMLoc) {
return ParseSectionSwitch(".data", MCSectionELF::SHT_PROGBITS,
MCSectionELF::SHF_WRITE |MCSectionELF::SHF_ALLOC,
SectionKind::getDataRel());
}
bool ParseSectionDirectiveText(StringRef, SMLoc) {
return ParseSectionSwitch(".text", MCSectionELF::SHT_PROGBITS,
MCSectionELF::SHF_EXECINSTR |
MCSectionELF::SHF_ALLOC, SectionKind::getText());
}
};
}
namespace llvm {
extern MCAsmParserExtension *createDarwinAsmParser();
extern MCAsmParserExtension *createELFAsmParser();
}
@ -112,7 +83,7 @@ AsmParser::AsmParser(const Target &T, SourceMgr &_SM, MCContext &_Ctx,
PlatformParser = createDarwinAsmParser();
PlatformParser->Initialize(*this);
} else {
PlatformParser = new ELFAsmParser;
PlatformParser = createELFAsmParser();
PlatformParser->Initialize(*this);
}
}
@ -815,18 +786,6 @@ bool AsmParser::ParseDirectiveSet() {
return ParseAssignment(Name);
}
bool ELFAsmParser::ParseSectionSwitch(StringRef Section, unsigned Type,
unsigned Flags, SectionKind Kind) {
if (getLexer().isNot(AsmToken::EndOfStatement))
return TokError("unexpected token in section switching directive");
Lex();
getStreamer().SwitchSection(getContext().getELFSection(
Section, Type, Flags, Kind));
return false;
}
bool AsmParser::ParseEscapedString(std::string &Data) {
assert(getLexer().is(AsmToken::String) && "Unexpected current token!");

1
lib/MC/MCParser/CMakeLists.txt
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@ -2,6 +2,7 @@ add_llvm_library(LLVMMCParser
AsmLexer.cpp
AsmParser.cpp
DarwinAsmParser.cpp
ELFAsmParser.cpp
MCAsmLexer.cpp
MCAsmParser.cpp
MCAsmParserExtension.cpp

68
lib/MC/MCParser/ELFAsmParser.cpp Normal file
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@ -0,0 +1,68 @@
//===- ELFAsmParser.cpp - ELF Assembly Parser -----------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/MC/MCParser/MCAsmParserExtension.h"
#include "llvm/MC/MCSectionELF.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCParser/MCAsmLexer.h"
using namespace llvm;
namespace {
class ELFAsmParser : public MCAsmParserExtension {
bool ParseSectionSwitch(StringRef Section, unsigned Type,
unsigned Flags, SectionKind Kind);
public:
ELFAsmParser() {}
virtual void Initialize(MCAsmParser &Parser) {
// Call the base implementation.
this->MCAsmParserExtension::Initialize(Parser);
Parser.AddDirectiveHandler(this, ".data", MCAsmParser::DirectiveHandler(
&ELFAsmParser::ParseSectionDirectiveData));
Parser.AddDirectiveHandler(this, ".text", MCAsmParser::DirectiveHandler(
&ELFAsmParser::ParseSectionDirectiveText));
}
bool ParseSectionDirectiveData(StringRef, SMLoc) {
return ParseSectionSwitch(".data", MCSectionELF::SHT_PROGBITS,
MCSectionELF::SHF_WRITE |MCSectionELF::SHF_ALLOC,
SectionKind::getDataRel());
}
bool ParseSectionDirectiveText(StringRef, SMLoc) {
return ParseSectionSwitch(".text", MCSectionELF::SHT_PROGBITS,
MCSectionELF::SHF_EXECINSTR |
MCSectionELF::SHF_ALLOC, SectionKind::getText());
}
};
}
bool ELFAsmParser::ParseSectionSwitch(StringRef Section, unsigned Type,
unsigned Flags, SectionKind Kind) {
if (getLexer().isNot(AsmToken::EndOfStatement))
return TokError("unexpected token in section switching directive");
Lex();
getStreamer().SwitchSection(getContext().getELFSection(
Section, Type, Flags, Kind));
return false;
}
namespace llvm {
MCAsmParserExtension *createELFAsmParser() {
return new ELFAsmParser;
}
}