//
//===----------------------------------------------------------------------===//
+#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/Host.h"
#include "llvm/System/Signals.h"
+#include "llvm/Target/TargetAsmBackend.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 "AsmParser.h"
+#include "llvm/MC/MCParser/AsmParser.h"
+#include "Disassembler.h"
using namespace llvm;
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));
+ArchName("arch", cl::desc("Target arch to assemble for, "
+ "see -version for available targets"));
+
+static cl::opt<std::string>
+TripleName("triple", cl::desc("Target triple to assemble for, "
+ "see -version for available targets"));
+
+static cl::opt<bool>
+NoInitialTextSection("n", cl::desc(
+ "Don't assume assembly file starts in the text section"));
enum ActionType {
AC_AsLex,
- AC_Assemble
+ AC_Assemble,
+ AC_Disassemble
};
static cl::opt<ActionType>
"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) {
+ // Figure out the target triple.
+ if (TripleName.empty())
+ TripleName = sys::getHostTriple();
+ if (!ArchName.empty()) {
+ llvm::Triple TT(TripleName);
+ TT.setArchName(ArchName);
+ TripleName = TT.str();
+ }
+
+ // 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,
// it later.
SrcMgr.setIncludeDirs(IncludeDirs);
- AsmLexer Lexer(SrcMgr);
+ const Target *TheTarget = GetTarget(ProgName);
+ if (!TheTarget)
+ return 1;
+
+ llvm::OwningPtr<MCAsmInfo> MAI((MCAsmInfo*) 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:
- Lexer.PrintMessage(Lexer.getLoc(), "unknown token", "warning");
+ SrcMgr.PrintMessage(Lexer.getLoc(), "unknown token", "warning");
Error = true;
break;
case AsmToken::Error:
case AsmToken::Identifier:
outs() << "identifier: " << Lexer.getTok().getString() << '\n';
break;
- case AsmToken::Register:
- outs() << "register: " << Lexer.getTok().getString() << '\n';
- break;
case AsmToken::String:
outs() << "string: " << Lexer.getTok().getString() << '\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) {
- // Get the target specific parser.
+ const Target *TheTarget = GetTarget(ProgName);
+ if (!TheTarget)
+ return 1;
+
std::string Error;
- const Target *TheTarget =
- TargetRegistry::lookupTarget(TripleName,
- /*FallbackToHost=*/true,
- /*RequireJIT=*/false,
- Error);
- if (TheTarget == 0) {
- errs() << ProgName << ": error: unable to get target for '" << TripleName
- << "', see --version and --triple.\n";
+ 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);
+
+
+ llvm::OwningPtr<MCAsmInfo> MAI((MCAsmInfo*) TheTarget->createAsmInfo(TripleName));
+ assert(MAI && "Unable to create target asm info!");
+
+ MCContext Ctx(*MAI);
+ 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, ""));
- TargetAsmParser *TAP = TheTarget->createAsmParser();
+ if (!TM) {
+ errs() << ProgName << ": error: could not create target for triple '"
+ << TripleName << "'.\n";
+ return 1;
+ }
+
+ OwningPtr<MCCodeEmitter> CE;
+ OwningPtr<MCStreamer> Str;
+ OwningPtr<TargetAsmBackend> TAB;
+
+ if (FileType == OFT_AssemblyFile) {
+ MCInstPrinter *IP =
+ TheTarget->createMCInstPrinter(OutputAsmVariant, *MAI, *Out);
+ if (ShowEncoding)
+ CE.reset(TheTarget->createCodeEmitter(*TM, Ctx));
+ Str.reset(createAsmStreamer(Ctx, *Out,TM->getTargetData()->isLittleEndian(),
+ /*asmverbose*/true, IP, CE.get(), ShowInst));
+ } else {
+ assert(FileType == OFT_ObjectFile && "Invalid file type!");
+ CE.reset(TheTarget->createCodeEmitter(*TM, Ctx));
+ TAB.reset(TheTarget->createAsmBackend(TripleName));
+ Str.reset(createMachOStreamer(Ctx, *TAB, *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;
+ return 1;
}
+ Parser.setTargetParser(*TAP.get());
+
+ int Res = Parser.Run(NoInitialTextSection);
+ if (Out != &fouts())
+ delete Out;
+
+ // Delete output on errors.
+ if (Res && OutputFilename != "-")
+ sys::Path(OutputFilename).eraseFromDisk();
+
+ return Res;
+}
+
+static int DisassembleInput(const char *ProgName) {
+ const Target *TheTarget = GetTarget(ProgName);
+ if (!TheTarget)
+ return 0;
+
std::string ErrorMessage;
+
MemoryBuffer *Buffer = MemoryBuffer::getFileOrSTDIN(InputFilename,
&ErrorMessage);
+
if (Buffer == 0) {
errs() << ProgName << ": ";
if (ErrorMessage.size())
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);
-
- MCContext Ctx;
- OwningPtr<MCStreamer> Str(createAsmStreamer(Ctx, outs()));
-
- // FIXME: Target hook & command line option for initial section.
- Str.get()->SwitchSection(Ctx.GetSection("__TEXT,__text,"
- "regular,pure_instructions"));
-
- AsmParser Parser(SrcMgr, Ctx, *Str.get(), *TAP);
- return Parser.Run();
-}
+ return Disassembler::disassemble(*TheTarget, TripleName, *Buffer);
+}
int main(int argc, char **argv) {
PrettyStackTraceProgram X(argc, argv);
llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
- // Initialize targets and assembly parsers.
+ // 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");
return AsLexInput(argv[0]);
case AC_Assemble:
return AssembleInput(argv[0]);
+ case AC_Disassemble:
+ return DisassembleInput(argv[0]);
}
return 0;
projects / oota-llvm.git / blobdiff