llvm/lib/MC/MCParser/XCOFFAsmParser.cpp

   1 //===- XCOFFAsmParser.cpp - XCOFF Assembly Parser
   2 //-----------------------------===//
   3 //
   4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   5 // See https://llvm.org/LICENSE.txt for license information.
   6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #include "llvm/BinaryFormat/XCOFF.h"
  11 #include "llvm/MC/MCContext.h"
  12 #include "llvm/MC/MCParser/MCAsmLexer.h"
  13 #include "llvm/MC/MCParser/MCAsmParser.h"
  14 #include "llvm/MC/MCParser/MCAsmParserExtension.h"
  15 #include "llvm/MC/MCSectionXCOFF.h"
  16 #include "llvm/MC/MCStreamer.h"
  17 #include "llvm/MC/MCSymbol.h"
  18 #include "llvm/MC/MCSymbolXCOFF.h"
  19 #include "llvm/Support/MachineValueType.h"
  20
  21 using namespace llvm;
  22
  23 namespace {
  24
  25 class XCOFFAsmParser : public MCAsmParserExtension {
  26   MCAsmParser *Parser = nullptr;
  27   MCAsmLexer *Lexer = nullptr;
  28
  29   template <bool (XCOFFAsmParser::*HandlerMethod)(StringRef, SMLoc)>
  30   void addDirectiveHandler(StringRef Directive) {
  31     MCAsmParser::ExtensionDirectiveHandler Handler =
  32         std::make_pair(this, HandleDirective<XCOFFAsmParser, HandlerMethod>);
  33
  34     getParser().addDirectiveHandler(Directive, Handler);
  35   }
  36
  37 public:
  38   XCOFFAsmParser() {}
  39
  40   void Initialize(MCAsmParser &P) override {
  41     Parser = &P;
  42     Lexer = &Parser->getLexer();
  43     // Call the base implementation.
  44     MCAsmParserExtension::Initialize(*Parser);
  45
  46     addDirectiveHandler<&XCOFFAsmParser::ParseDirectiveCSect>(".csect");
  47   }
  48   bool ParseDirectiveCSect(StringRef, SMLoc);
  49 };
  50
  51 } // end anonymous namespace
  52
  53 namespace llvm {
  54
  55 MCAsmParserExtension *createXCOFFAsmParser() { return new XCOFFAsmParser; }
  56
  57 } // end namespace llvm
  58
  59 // .csect QualName [, Number ]
  60 bool XCOFFAsmParser::ParseDirectiveCSect(StringRef, SMLoc) {
  61   report_fatal_error("XCOFFAsmParser directive not yet supported!");
  62   return false;
  63 }