mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-21 00:32:23 +00:00
9dee8e3009
output. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95227 91177308-0d34-0410-b5e6-96231b3b80d8
353 lines
11 KiB
C++
353 lines
11 KiB
C++
//===-- llvm-mc.cpp - Machine Code Hacking Driver -------------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This utility is a simple driver that allows command line hacking on machine
|
|
// code.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/MC/MCParser/MCAsmLexer.h"
|
|
#include "llvm/MC/MCContext.h"
|
|
#include "llvm/MC/MCCodeEmitter.h"
|
|
#include "llvm/MC/MCInstPrinter.h"
|
|
#include "llvm/MC/MCSectionMachO.h"
|
|
#include "llvm/MC/MCStreamer.h"
|
|
#include "llvm/ADT/OwningPtr.h"
|
|
#include "llvm/Support/CommandLine.h"
|
|
#include "llvm/Support/FormattedStream.h"
|
|
#include "llvm/Support/ManagedStatic.h"
|
|
#include "llvm/Support/MemoryBuffer.h"
|
|
#include "llvm/Support/PrettyStackTrace.h"
|
|
#include "llvm/Support/SourceMgr.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
#include "llvm/System/Signals.h"
|
|
#include "llvm/Target/TargetAsmParser.h"
|
|
#include "llvm/Target/TargetData.h"
|
|
#include "llvm/Target/TargetRegistry.h"
|
|
#include "llvm/Target/TargetMachine.h" // FIXME.
|
|
#include "llvm/Target/TargetSelect.h"
|
|
#include "llvm/MC/MCParser/AsmParser.h"
|
|
#include "Disassembler.h"
|
|
using namespace llvm;
|
|
|
|
static cl::opt<std::string>
|
|
InputFilename(cl::Positional, cl::desc("<input file>"), cl::init("-"));
|
|
|
|
static cl::opt<std::string>
|
|
OutputFilename("o", cl::desc("Output filename"),
|
|
cl::value_desc("filename"));
|
|
|
|
static cl::opt<bool>
|
|
ShowEncoding("show-encoding", cl::desc("Show instruction encodings"));
|
|
|
|
static cl::opt<bool>
|
|
ShowInst("show-inst", cl::desc("Show internal instruction representation"));
|
|
|
|
static cl::opt<unsigned>
|
|
OutputAsmVariant("output-asm-variant",
|
|
cl::desc("Syntax variant to use for output printing"));
|
|
|
|
enum OutputFileType {
|
|
OFT_AssemblyFile,
|
|
OFT_ObjectFile
|
|
};
|
|
static cl::opt<OutputFileType>
|
|
FileType("filetype", cl::init(OFT_AssemblyFile),
|
|
cl::desc("Choose an output file type:"),
|
|
cl::values(
|
|
clEnumValN(OFT_AssemblyFile, "asm",
|
|
"Emit an assembly ('.s') file"),
|
|
clEnumValN(OFT_ObjectFile, "obj",
|
|
"Emit a native object ('.o') file"),
|
|
clEnumValEnd));
|
|
|
|
static cl::opt<bool>
|
|
Force("f", cl::desc("Enable binary output on terminals"));
|
|
|
|
static cl::list<std::string>
|
|
IncludeDirs("I", cl::desc("Directory of include files"),
|
|
cl::value_desc("directory"), cl::Prefix);
|
|
|
|
static cl::opt<std::string>
|
|
TripleName("triple", cl::desc("Target triple to assemble for, "
|
|
"see -version for available targets"),
|
|
cl::init(LLVM_HOSTTRIPLE));
|
|
|
|
enum ActionType {
|
|
AC_AsLex,
|
|
AC_Assemble,
|
|
AC_Disassemble
|
|
};
|
|
|
|
static cl::opt<ActionType>
|
|
Action(cl::desc("Action to perform:"),
|
|
cl::init(AC_Assemble),
|
|
cl::values(clEnumValN(AC_AsLex, "as-lex",
|
|
"Lex tokens from a .s file"),
|
|
clEnumValN(AC_Assemble, "assemble",
|
|
"Assemble a .s file (default)"),
|
|
clEnumValN(AC_Disassemble, "disassemble",
|
|
"Disassemble strings of hex bytes"),
|
|
clEnumValEnd));
|
|
|
|
static const Target *GetTarget(const char *ProgName) {
|
|
// Get the target specific parser.
|
|
std::string Error;
|
|
const Target *TheTarget = TargetRegistry::lookupTarget(TripleName, Error);
|
|
if (TheTarget)
|
|
return TheTarget;
|
|
|
|
errs() << ProgName << ": error: unable to get target for '" << TripleName
|
|
<< "', see --version and --triple.\n";
|
|
return 0;
|
|
}
|
|
|
|
static int AsLexInput(const char *ProgName) {
|
|
std::string ErrorMessage;
|
|
MemoryBuffer *Buffer = MemoryBuffer::getFileOrSTDIN(InputFilename,
|
|
&ErrorMessage);
|
|
if (Buffer == 0) {
|
|
errs() << ProgName << ": ";
|
|
if (ErrorMessage.size())
|
|
errs() << ErrorMessage << "\n";
|
|
else
|
|
errs() << "input file didn't read correctly.\n";
|
|
return 1;
|
|
}
|
|
|
|
SourceMgr SrcMgr;
|
|
|
|
// Tell SrcMgr about this buffer, which is what TGParser will pick up.
|
|
SrcMgr.AddNewSourceBuffer(Buffer, SMLoc());
|
|
|
|
// Record the location of the include directories so that the lexer can find
|
|
// it later.
|
|
SrcMgr.setIncludeDirs(IncludeDirs);
|
|
|
|
const Target *TheTarget = GetTarget(ProgName);
|
|
if (!TheTarget)
|
|
return 1;
|
|
|
|
const MCAsmInfo *MAI = TheTarget->createAsmInfo(TripleName);
|
|
assert(MAI && "Unable to create target asm info!");
|
|
|
|
AsmLexer Lexer(*MAI);
|
|
|
|
bool Error = false;
|
|
|
|
while (Lexer.Lex().isNot(AsmToken::Eof)) {
|
|
switch (Lexer.getKind()) {
|
|
default:
|
|
SrcMgr.PrintMessage(Lexer.getLoc(), "unknown token", "warning");
|
|
Error = true;
|
|
break;
|
|
case AsmToken::Error:
|
|
Error = true; // error already printed.
|
|
break;
|
|
case AsmToken::Identifier:
|
|
outs() << "identifier: " << Lexer.getTok().getString() << '\n';
|
|
break;
|
|
case AsmToken::String:
|
|
outs() << "string: " << Lexer.getTok().getString() << '\n';
|
|
break;
|
|
case AsmToken::Integer:
|
|
outs() << "int: " << Lexer.getTok().getString() << '\n';
|
|
break;
|
|
|
|
case AsmToken::Amp: outs() << "Amp\n"; break;
|
|
case AsmToken::AmpAmp: outs() << "AmpAmp\n"; break;
|
|
case AsmToken::Caret: outs() << "Caret\n"; break;
|
|
case AsmToken::Colon: outs() << "Colon\n"; break;
|
|
case AsmToken::Comma: outs() << "Comma\n"; break;
|
|
case AsmToken::Dollar: outs() << "Dollar\n"; break;
|
|
case AsmToken::EndOfStatement: outs() << "EndOfStatement\n"; break;
|
|
case AsmToken::Eof: outs() << "Eof\n"; break;
|
|
case AsmToken::Equal: outs() << "Equal\n"; break;
|
|
case AsmToken::EqualEqual: outs() << "EqualEqual\n"; break;
|
|
case AsmToken::Exclaim: outs() << "Exclaim\n"; break;
|
|
case AsmToken::ExclaimEqual: outs() << "ExclaimEqual\n"; break;
|
|
case AsmToken::Greater: outs() << "Greater\n"; break;
|
|
case AsmToken::GreaterEqual: outs() << "GreaterEqual\n"; break;
|
|
case AsmToken::GreaterGreater: outs() << "GreaterGreater\n"; break;
|
|
case AsmToken::LParen: outs() << "LParen\n"; break;
|
|
case AsmToken::Less: outs() << "Less\n"; break;
|
|
case AsmToken::LessEqual: outs() << "LessEqual\n"; break;
|
|
case AsmToken::LessGreater: outs() << "LessGreater\n"; break;
|
|
case AsmToken::LessLess: outs() << "LessLess\n"; break;
|
|
case AsmToken::Minus: outs() << "Minus\n"; break;
|
|
case AsmToken::Percent: outs() << "Percent\n"; break;
|
|
case AsmToken::Pipe: outs() << "Pipe\n"; break;
|
|
case AsmToken::PipePipe: outs() << "PipePipe\n"; break;
|
|
case AsmToken::Plus: outs() << "Plus\n"; break;
|
|
case AsmToken::RParen: outs() << "RParen\n"; break;
|
|
case AsmToken::Slash: outs() << "Slash\n"; break;
|
|
case AsmToken::Star: outs() << "Star\n"; break;
|
|
case AsmToken::Tilde: outs() << "Tilde\n"; break;
|
|
}
|
|
}
|
|
|
|
return Error;
|
|
}
|
|
|
|
static formatted_raw_ostream *GetOutputStream() {
|
|
if (OutputFilename == "")
|
|
OutputFilename = "-";
|
|
|
|
// Make sure that the Out file gets unlinked from the disk if we get a
|
|
// SIGINT.
|
|
if (OutputFilename != "-")
|
|
sys::RemoveFileOnSignal(sys::Path(OutputFilename));
|
|
|
|
std::string Err;
|
|
raw_fd_ostream *Out = new raw_fd_ostream(OutputFilename.c_str(), Err,
|
|
raw_fd_ostream::F_Binary);
|
|
if (!Err.empty()) {
|
|
errs() << Err << '\n';
|
|
delete Out;
|
|
return 0;
|
|
}
|
|
|
|
return new formatted_raw_ostream(*Out, formatted_raw_ostream::DELETE_STREAM);
|
|
}
|
|
|
|
static int AssembleInput(const char *ProgName) {
|
|
const Target *TheTarget = GetTarget(ProgName);
|
|
if (!TheTarget)
|
|
return 1;
|
|
|
|
std::string Error;
|
|
MemoryBuffer *Buffer = MemoryBuffer::getFileOrSTDIN(InputFilename, &Error);
|
|
if (Buffer == 0) {
|
|
errs() << ProgName << ": ";
|
|
if (Error.size())
|
|
errs() << Error << "\n";
|
|
else
|
|
errs() << "input file didn't read correctly.\n";
|
|
return 1;
|
|
}
|
|
|
|
SourceMgr SrcMgr;
|
|
|
|
// Tell SrcMgr about this buffer, which is what the parser will pick up.
|
|
SrcMgr.AddNewSourceBuffer(Buffer, SMLoc());
|
|
|
|
// Record the location of the include directories so that the lexer can find
|
|
// it later.
|
|
SrcMgr.setIncludeDirs(IncludeDirs);
|
|
|
|
MCContext Ctx;
|
|
formatted_raw_ostream *Out = GetOutputStream();
|
|
if (!Out)
|
|
return 1;
|
|
|
|
|
|
// FIXME: We shouldn't need to do this (and link in codegen).
|
|
OwningPtr<TargetMachine> TM(TheTarget->createTargetMachine(TripleName, ""));
|
|
|
|
if (!TM) {
|
|
errs() << ProgName << ": error: could not create target for triple '"
|
|
<< TripleName << "'.\n";
|
|
return 1;
|
|
}
|
|
|
|
OwningPtr<MCInstPrinter> IP;
|
|
OwningPtr<MCCodeEmitter> CE;
|
|
OwningPtr<MCStreamer> Str;
|
|
|
|
const MCAsmInfo *MAI = TheTarget->createAsmInfo(TripleName);
|
|
assert(MAI && "Unable to create target asm info!");
|
|
|
|
if (FileType == OFT_AssemblyFile) {
|
|
IP.reset(TheTarget->createMCInstPrinter(OutputAsmVariant, *MAI, *Out));
|
|
if (ShowEncoding)
|
|
CE.reset(TheTarget->createCodeEmitter(*TM));
|
|
Str.reset(createAsmStreamer(Ctx, *Out, *MAI,
|
|
TM->getTargetData()->isLittleEndian(),
|
|
/*asmverbose*/true, IP.get(), CE.get(),
|
|
ShowInst));
|
|
} else {
|
|
assert(FileType == OFT_ObjectFile && "Invalid file type!");
|
|
CE.reset(TheTarget->createCodeEmitter(*TM));
|
|
Str.reset(createMachOStreamer(Ctx, *Out, CE.get()));
|
|
}
|
|
|
|
AsmParser Parser(SrcMgr, Ctx, *Str.get(), *MAI);
|
|
OwningPtr<TargetAsmParser> TAP(TheTarget->createAsmParser(Parser));
|
|
if (!TAP) {
|
|
errs() << ProgName
|
|
<< ": error: this target does not support assembly parsing.\n";
|
|
return 1;
|
|
}
|
|
|
|
Parser.setTargetParser(*TAP.get());
|
|
|
|
int Res = Parser.Run();
|
|
if (Out != &fouts())
|
|
delete Out;
|
|
|
|
return Res;
|
|
}
|
|
|
|
static int DisassembleInput(const char *ProgName) {
|
|
std::string Error;
|
|
const Target *TheTarget = TargetRegistry::lookupTarget(TripleName, Error);
|
|
if (TheTarget == 0) {
|
|
errs() << ProgName << ": error: unable to get target for '" << TripleName
|
|
<< "', see --version and --triple.\n";
|
|
return 0;
|
|
}
|
|
|
|
std::string ErrorMessage;
|
|
|
|
MemoryBuffer *Buffer = MemoryBuffer::getFileOrSTDIN(InputFilename,
|
|
&ErrorMessage);
|
|
|
|
if (Buffer == 0) {
|
|
errs() << ProgName << ": ";
|
|
if (ErrorMessage.size())
|
|
errs() << ErrorMessage << "\n";
|
|
else
|
|
errs() << "input file didn't read correctly.\n";
|
|
return 1;
|
|
}
|
|
|
|
return Disassembler::disassemble(*TheTarget, TripleName, *Buffer);
|
|
}
|
|
|
|
|
|
int main(int argc, char **argv) {
|
|
// Print a stack trace if we signal out.
|
|
sys::PrintStackTraceOnErrorSignal();
|
|
PrettyStackTraceProgram X(argc, argv);
|
|
llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
|
|
|
|
// Initialize targets and assembly printers/parsers.
|
|
llvm::InitializeAllTargetInfos();
|
|
// FIXME: We shouldn't need to initialize the Target(Machine)s.
|
|
llvm::InitializeAllTargets();
|
|
llvm::InitializeAllAsmPrinters();
|
|
llvm::InitializeAllAsmParsers();
|
|
llvm::InitializeAllDisassemblers();
|
|
|
|
cl::ParseCommandLineOptions(argc, argv, "llvm machine code playground\n");
|
|
|
|
switch (Action) {
|
|
default:
|
|
case AC_AsLex:
|
|
return AsLexInput(argv[0]);
|
|
case AC_Assemble:
|
|
return AssembleInput(argv[0]);
|
|
case AC_Disassemble:
|
|
return DisassembleInput(argv[0]);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|