mirror of
https://github.com/c64scene-ar/llvm-6502.git
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74ec1a3b11
all of health and voronoi (ignoring directives). We only get 409 lines into 176.gcc though because we don't have binary operators yet: Parsing 176.gcc.llc.s:409: unexpected token in operand list movsbl _arityvec+1(,%edi,8), %eax ^ git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73877 91177308-0d34-0410-b5e6-96231b3b80d8
162 lines
4.8 KiB
C++
162 lines
4.8 KiB
C++
//===-- llvm-mc.cpp - Machine Code Hacking Driver -------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This utility is a simple driver that allows command line hacking on machine
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// code.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/ManagedStatic.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/PrettyStackTrace.h"
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#include "llvm/Support/SourceMgr.h"
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#include "llvm/Support/raw_ostream.h"
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#include "llvm/System/Signals.h"
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#include "AsmParser.h"
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using namespace llvm;
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static cl::opt<std::string>
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InputFilename(cl::Positional, cl::desc("<input file>"), cl::init("-"));
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static cl::opt<std::string>
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OutputFilename("o", cl::desc("Output filename"),
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cl::value_desc("filename"));
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static cl::list<std::string>
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IncludeDirs("I", cl::desc("Directory of include files"),
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cl::value_desc("directory"), cl::Prefix);
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enum ActionType {
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AC_AsLex,
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AC_Assemble
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};
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static cl::opt<ActionType>
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Action(cl::desc("Action to perform:"),
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cl::init(AC_Assemble),
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cl::values(clEnumValN(AC_AsLex, "as-lex",
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"Lex tokens from a .s file"),
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clEnumValN(AC_Assemble, "assemble",
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"Assemble a .s file (default)"),
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clEnumValEnd));
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static int AsLexInput(const char *ProgName) {
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std::string ErrorMessage;
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MemoryBuffer *Buffer = MemoryBuffer::getFileOrSTDIN(InputFilename,
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&ErrorMessage);
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if (Buffer == 0) {
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errs() << ProgName << ": ";
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if (ErrorMessage.size())
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errs() << ErrorMessage << "\n";
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else
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errs() << "input file didn't read correctly.\n";
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return 1;
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}
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SourceMgr SrcMgr;
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// Tell SrcMgr about this buffer, which is what TGParser will pick up.
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SrcMgr.AddNewSourceBuffer(Buffer, SMLoc());
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// Record the location of the include directories so that the lexer can find
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// it later.
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SrcMgr.setIncludeDirs(IncludeDirs);
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AsmLexer Lexer(SrcMgr);
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bool Error = false;
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asmtok::TokKind Tok = Lexer.Lex();
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while (Tok != asmtok::Eof) {
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switch (Tok) {
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default:
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Lexer.PrintMessage(Lexer.getLoc(), "driver: unknown token");
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Error = true;
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break;
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case asmtok::Error:
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Error = true; // error already printed.
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break;
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case asmtok::Identifier:
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outs() << "identifier: " << Lexer.getCurStrVal() << '\n';
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break;
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case asmtok::Register:
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outs() << "register: " << Lexer.getCurStrVal() << '\n';
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break;
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case asmtok::String:
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outs() << "string: " << Lexer.getCurStrVal() << '\n';
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break;
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case asmtok::IntVal:
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outs() << "int: " << Lexer.getCurIntVal() << '\n';
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break;
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case asmtok::EndOfStatement: outs() << "EndOfStatement\n"; break;
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case asmtok::Colon: outs() << "Colon\n"; break;
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case asmtok::Plus: outs() << "Plus\n"; break;
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case asmtok::Minus: outs() << "Minus\n"; break;
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case asmtok::Tilde: outs() << "Tilde\n"; break;
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case asmtok::Slash: outs() << "Slash\n"; break;
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case asmtok::LParen: outs() << "LParen\n"; break;
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case asmtok::RParen: outs() << "RParen\n"; break;
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case asmtok::Star: outs() << "Star\n"; break;
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case asmtok::Comma: outs() << "Comma\n"; break;
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case asmtok::Dollar: outs() << "Dollar\n"; break;
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}
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Tok = Lexer.Lex();
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}
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return Error;
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}
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static int AssembleInput(const char *ProgName) {
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std::string ErrorMessage;
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MemoryBuffer *Buffer = MemoryBuffer::getFileOrSTDIN(InputFilename,
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&ErrorMessage);
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if (Buffer == 0) {
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errs() << ProgName << ": ";
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if (ErrorMessage.size())
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errs() << ErrorMessage << "\n";
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else
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errs() << "input file didn't read correctly.\n";
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return 1;
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}
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SourceMgr SrcMgr;
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// Tell SrcMgr about this buffer, which is what TGParser will pick up.
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SrcMgr.AddNewSourceBuffer(Buffer, SMLoc());
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// Record the location of the include directories so that the lexer can find
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// it later.
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SrcMgr.setIncludeDirs(IncludeDirs);
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AsmParser Parser(SrcMgr);
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return Parser.Run();
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}
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int main(int argc, char **argv) {
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// Print a stack trace if we signal out.
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sys::PrintStackTraceOnErrorSignal();
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PrettyStackTraceProgram X(argc, argv);
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llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
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cl::ParseCommandLineOptions(argc, argv, "llvm machine code playground\n");
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switch (Action) {
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default:
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case AC_AsLex:
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return AsLexInput(argv[0]);
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case AC_Assemble:
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return AssembleInput(argv[0]);
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}
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return 0;
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}
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