//
//===----------------------------------------------------------------------===//
+#include "llvm/MC/MCParser/AsmLexer.h"
+#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/Target/TargetAsmBackend.h"
+#include "llvm/Target/TargetAsmParser.h"
+#include "llvm/Target/TargetData.h"
+#include "llvm/Target/TargetRegistry.h"
+#include "llvm/Target/SubtargetFeature.h" // FIXME.
+#include "llvm/Target/TargetAsmInfo.h" // FIXME.
+#include "llvm/Target/TargetLowering.h" // FIXME.
+#include "llvm/Target/TargetLoweringObjectFile.h" // FIXME.
+#include "llvm/Target/TargetMachine.h" // FIXME.
+#include "llvm/Target/TargetSelect.h"
#include "llvm/ADT/OwningPtr.h"
-#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/FileUtilities.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/TargetRegistry.h"
-#include "llvm/Target/TargetSelect.h"
-#include "AsmParser.h"
+#include "llvm/Support/ToolOutputFile.h"
+#include "llvm/Support/Host.h"
+#include "llvm/Support/Signals.h"
+#include "llvm/Support/system_error.h"
+#include "Disassembler.h"
using namespace llvm;
static cl::opt<std::string>
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<bool>
+ShowInstOperands("show-inst-operands",
+ cl::desc("Show instructions operands as parsed"));
+
+static cl::opt<bool>
+DecodeLSDA("decode-lsda",
+ cl::desc("Print LSDA in human readable format"));
+
+static cl::opt<unsigned>
+OutputAsmVariant("output-asm-variant",
+ cl::desc("Syntax variant to use for output printing"));
+
+static cl::opt<bool>
+RelaxAll("mc-relax-all", cl::desc("Relax all fixups"));
+
+static cl::opt<bool>
+NoExecStack("mc-no-exec-stack", cl::desc("File doesn't need an exec stack"));
+
+static cl::opt<bool>
+EnableLogging("enable-api-logging", cl::desc("Enable MC API logging"));
+
enum OutputFileType {
+ OFT_Null,
OFT_AssemblyFile,
OFT_ObjectFile
};
cl::values(
clEnumValN(OFT_AssemblyFile, "asm",
"Emit an assembly ('.s') file"),
+ clEnumValN(OFT_Null, "null",
+ "Don't emit anything (for timing purposes)"),
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<std::string>
+MCPU("mcpu",
+ cl::desc("Target a specific cpu type (-mcpu=help for details)"),
+ cl::value_desc("cpu-name"),
+ cl::init(""));
+
+static cl::opt<bool>
+NoInitialTextSection("n", cl::desc("Don't assume assembly file starts "
+ "in the text section"));
+
+static cl::opt<bool>
+SaveTempLabels("L", cl::desc("Don't discard temporary labels"));
enum ActionType {
AC_AsLex,
- AC_Assemble
+ AC_Assemble,
+ AC_Disassemble,
+ AC_EDisassemble
};
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"),
+ clEnumValN(AC_EDisassemble, "edis",
+ "Enhanced disassembly of 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 tool_output_file *GetOutputStream() {
+ if (OutputFilename == "")
+ OutputFilename = "-";
+
+ std::string Err;
+ tool_output_file *Out = new tool_output_file(OutputFilename.c_str(), Err,
+ raw_fd_ostream::F_Binary);
+ if (!Err.empty()) {
+ errs() << Err << '\n';
+ delete Out;
+ return 0;
+ }
+
+ return Out;
+}
+
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";
+ OwningPtr<MemoryBuffer> BufferPtr;
+ if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputFilename, BufferPtr)) {
+ errs() << ProgName << ": " << ec.message() << '\n';
return 1;
}
+ MemoryBuffer *Buffer = BufferPtr.take();
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);
- AsmLexer Lexer(SrcMgr);
-
+ const Target *TheTarget = GetTarget(ProgName);
+ if (!TheTarget)
+ return 1;
+
+ llvm::OwningPtr<MCAsmInfo> MAI(TheTarget->createAsmInfo(TripleName));
+ assert(MAI && "Unable to create target asm info!");
+
+ AsmLexer Lexer(*MAI);
+ Lexer.setBuffer(SrcMgr.getMemoryBuffer(0));
+
+ OwningPtr<tool_output_file> Out(GetOutputStream());
+ if (!Out)
+ return 1;
+
bool Error = false;
-
while (Lexer.Lex().isNot(AsmToken::Eof)) {
- switch (Lexer.getKind()) {
+ AsmToken Tok = Lexer.getTok();
+
+ switch (Tok.getKind()) {
default:
- Lexer.PrintMessage(Lexer.getLoc(), "unknown token", "warning");
+ 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';
+ Out->os() << "identifier: " << Lexer.getTok().getString();
+ break;
+ case AsmToken::Integer:
+ Out->os() << "int: " << Lexer.getTok().getString();
+ break;
+ case AsmToken::Real:
+ Out->os() << "real: " << Lexer.getTok().getString();
break;
case AsmToken::Register:
- outs() << "register: " << Lexer.getTok().getString() << '\n';
+ Out->os() << "register: " << Lexer.getTok().getRegVal();
break;
case AsmToken::String:
- outs() << "string: " << Lexer.getTok().getString() << '\n';
- break;
- case AsmToken::Integer:
- outs() << "int: " << Lexer.getTok().getString() << '\n';
+ Out->os() << "string: " << Lexer.getTok().getString();
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;
+ case AsmToken::Amp: Out->os() << "Amp"; break;
+ case AsmToken::AmpAmp: Out->os() << "AmpAmp"; break;
+ case AsmToken::At: Out->os() << "At"; break;
+ case AsmToken::Caret: Out->os() << "Caret"; break;
+ case AsmToken::Colon: Out->os() << "Colon"; break;
+ case AsmToken::Comma: Out->os() << "Comma"; break;
+ case AsmToken::Dollar: Out->os() << "Dollar"; break;
+ case AsmToken::Dot: Out->os() << "Dot"; break;
+ case AsmToken::EndOfStatement: Out->os() << "EndOfStatement"; break;
+ case AsmToken::Eof: Out->os() << "Eof"; break;
+ case AsmToken::Equal: Out->os() << "Equal"; break;
+ case AsmToken::EqualEqual: Out->os() << "EqualEqual"; break;
+ case AsmToken::Exclaim: Out->os() << "Exclaim"; break;
+ case AsmToken::ExclaimEqual: Out->os() << "ExclaimEqual"; break;
+ case AsmToken::Greater: Out->os() << "Greater"; break;
+ case AsmToken::GreaterEqual: Out->os() << "GreaterEqual"; break;
+ case AsmToken::GreaterGreater: Out->os() << "GreaterGreater"; break;
+ case AsmToken::Hash: Out->os() << "Hash"; break;
+ case AsmToken::LBrac: Out->os() << "LBrac"; break;
+ case AsmToken::LCurly: Out->os() << "LCurly"; break;
+ case AsmToken::LParen: Out->os() << "LParen"; break;
+ case AsmToken::Less: Out->os() << "Less"; break;
+ case AsmToken::LessEqual: Out->os() << "LessEqual"; break;
+ case AsmToken::LessGreater: Out->os() << "LessGreater"; break;
+ case AsmToken::LessLess: Out->os() << "LessLess"; break;
+ case AsmToken::Minus: Out->os() << "Minus"; break;
+ case AsmToken::Percent: Out->os() << "Percent"; break;
+ case AsmToken::Pipe: Out->os() << "Pipe"; break;
+ case AsmToken::PipePipe: Out->os() << "PipePipe"; break;
+ case AsmToken::Plus: Out->os() << "Plus"; break;
+ case AsmToken::RBrac: Out->os() << "RBrac"; break;
+ case AsmToken::RCurly: Out->os() << "RCurly"; break;
+ case AsmToken::RParen: Out->os() << "RParen"; break;
+ case AsmToken::Slash: Out->os() << "Slash"; break;
+ case AsmToken::Star: Out->os() << "Star"; break;
+ case AsmToken::Tilde: Out->os() << "Tilde"; break;
}
- }
-
- return Error;
-}
-
-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 formatted_raw_ostream *GetOutputStream() {
- if (OutputFilename == "")
- OutputFilename = "-";
+ // Print the token string.
+ Out->os() << " (\"";
+ Out->os().write_escaped(Tok.getString());
+ Out->os() << "\")\n";
+ }
- // Make sure that the Out file gets unlinked from the disk if we get a
- // SIGINT.
- if (OutputFilename != "-")
- sys::RemoveFileOnSignal(sys::Path(OutputFilename));
+ // Keep output if no errors.
+ if (Error == 0) Out->keep();
- 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);
+ return Error;
}
static int AssembleInput(const char *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";
+ OwningPtr<MemoryBuffer> BufferPtr;
+ if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputFilename, BufferPtr)) {
+ errs() << ProgName << ": " << ec.message() << '\n';
return 1;
}
-
+ MemoryBuffer *Buffer = BufferPtr.take();
+
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;
+ llvm::OwningPtr<MCAsmInfo> MAI(TheTarget->createAsmInfo(TripleName));
+ assert(MAI && "Unable to create target asm info!");
+
+ // Package up features to be passed to target/subtarget
+ std::string FeaturesStr;
+ if (MCPU.size()) {
+ SubtargetFeatures Features;
+ Features.setCPU(MCPU);
+ FeaturesStr = Features.getString();
+ }
+
// FIXME: We shouldn't need to do this (and link in codegen).
- OwningPtr<TargetMachine> TM(TheTarget->createTargetMachine(TripleName, ""));
+ // When we split this out, we should do it in a way that makes
+ // it straightforward to switch subtargets on the fly (.e.g,
+ // the .cpu and .code16 directives).
+ OwningPtr<TargetMachine> TM(TheTarget->createTargetMachine(TripleName,
+ FeaturesStr));
if (!TM) {
errs() << ProgName << ": error: could not create target for triple '"
return 1;
}
- OwningPtr<AsmPrinter> AP;
- OwningPtr<MCCodeEmitter> CE;
+ const TargetAsmInfo *tai = new TargetAsmInfo(*TM);
+ MCContext Ctx(*MAI, tai);
+ if (SaveTempLabels)
+ Ctx.setAllowTemporaryLabels(false);
+
+ OwningPtr<tool_output_file> Out(GetOutputStream());
+ if (!Out)
+ return 1;
+
+ formatted_raw_ostream FOS(Out->os());
OwningPtr<MCStreamer> Str;
- if (FileType == OFT_AssemblyFile) {
- const MCAsmInfo *TAI = TheTarget->createAsmInfo(TripleName);
- assert(TAI && "Unable to create target asm info!");
+ const TargetLoweringObjectFile &TLOF =
+ TM->getTargetLowering()->getObjFileLowering();
+ const_cast<TargetLoweringObjectFile&>(TLOF).Initialize(Ctx, *TM);
- AP.reset(TheTarget->createAsmPrinter(*Out, *TM, TAI, true));
- if (ShowEncoding)
- CE.reset(TheTarget->createCodeEmitter(*TM));
- Str.reset(createAsmStreamer(Ctx, *Out, *TAI, AP.get(), CE.get()));
+ // FIXME: There is a bit of code duplication with addPassesToEmitFile.
+ if (FileType == OFT_AssemblyFile) {
+ MCInstPrinter *IP =
+ TheTarget->createMCInstPrinter(*TM, OutputAsmVariant, *MAI);
+ MCCodeEmitter *CE = 0;
+ TargetAsmBackend *TAB = 0;
+ if (ShowEncoding) {
+ CE = TheTarget->createCodeEmitter(*TM, Ctx);
+ TAB = TheTarget->createAsmBackend(TripleName);
+ }
+ Str.reset(TheTarget->createAsmStreamer(Ctx, FOS, /*asmverbose*/true,
+ /*useLoc*/ true,
+ /*useCFI*/ true, IP, CE, TAB,
+ ShowInst,
+ DecodeLSDA));
+ } else if (FileType == OFT_Null) {
+ Str.reset(createNullStreamer(Ctx));
} else {
assert(FileType == OFT_ObjectFile && "Invalid file type!");
- CE.reset(TheTarget->createCodeEmitter(*TM));
- Str.reset(createMachOStreamer(Ctx, *Out, CE.get()));
+ MCCodeEmitter *CE = TheTarget->createCodeEmitter(*TM, Ctx);
+ TargetAsmBackend *TAB = TheTarget->createAsmBackend(TripleName);
+ Str.reset(TheTarget->createObjectStreamer(TripleName, Ctx, *TAB,
+ FOS, CE, RelaxAll,
+ NoExecStack));
+ }
+
+ if (EnableLogging) {
+ Str.reset(createLoggingStreamer(Str.take(), errs()));
}
- AsmParser Parser(SrcMgr, Ctx, *Str.get());
- OwningPtr<TargetAsmParser> TAP(TheTarget->createAsmParser(Parser));
+ OwningPtr<MCAsmParser> Parser(createMCAsmParser(*TheTarget, SrcMgr, Ctx,
+ *Str.get(), *MAI));
+ OwningPtr<TargetAsmParser> TAP(TheTarget->createAsmParser(*Parser, *TM));
if (!TAP) {
- errs() << ProgName
+ errs() << ProgName
<< ": error: this target does not support assembly parsing.\n";
return 1;
}
- Parser.setTargetParser(*TAP.get());
+ Parser->setShowParsedOperands(ShowInstOperands);
+ Parser->setTargetParser(*TAP.get());
- int Res = Parser.Run();
- if (Out != &fouts())
- delete Out;
+ int Res = Parser->Run(NoInitialTextSection);
+
+ // Keep output if no errors.
+ if (Res == 0) Out->keep();
return Res;
-}
+}
+
+static int DisassembleInput(const char *ProgName, bool Enhanced) {
+ const Target *TheTarget = GetTarget(ProgName);
+ if (!TheTarget)
+ return 0;
+
+ OwningPtr<MemoryBuffer> Buffer;
+ if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputFilename, Buffer)) {
+ errs() << ProgName << ": " << ec.message() << '\n';
+ return 1;
+ }
+
+ OwningPtr<tool_output_file> Out(GetOutputStream());
+ if (!Out)
+ return 1;
+
+ int Res;
+ if (Enhanced) {
+ Res =
+ Disassembler::disassembleEnhanced(TripleName, *Buffer.take(), Out->os());
+ } else {
+ // Package up features to be passed to target/subtarget
+ std::string FeaturesStr;
+ if (MCPU.size()) {
+ SubtargetFeatures Features;
+ Features.setCPU(MCPU);
+ FeaturesStr = Features.getString();
+ }
+
+ // FIXME: We shouldn't need to do this (and link in codegen).
+ // When we split this out, we should do it in a way that makes
+ // it straightforward to switch subtargets on the fly (.e.g,
+ // the .cpu and .code16 directives).
+ OwningPtr<TargetMachine> TM(TheTarget->createTargetMachine(TripleName,
+ FeaturesStr));
+
+ if (!TM) {
+ errs() << ProgName << ": error: could not create target for triple '"
+ << TripleName << "'.\n";
+ return 1;
+ }
+
+ Res = Disassembler::disassemble(*TheTarget, *TM, TripleName,
+ *Buffer.take(), Out->os());
+ }
+
+ // Keep output if no errors.
+ if (Res == 0) Out->keep();
+
+ return Res;
+}
int main(int argc, char **argv) {
llvm::InitializeAllTargets();
llvm::InitializeAllAsmPrinters();
llvm::InitializeAllAsmParsers();
-
+ llvm::InitializeAllDisassemblers();
+
cl::ParseCommandLineOptions(argc, argv, "llvm machine code playground\n");
+ TripleName = Triple::normalize(TripleName);
switch (Action) {
default:
return AsLexInput(argv[0]);
case AC_Assemble:
return AssembleInput(argv[0]);
+ case AC_Disassemble:
+ return DisassembleInput(argv[0], false);
+ case AC_EDisassemble:
+ return DisassembleInput(argv[0], true);
}
-
+
return 0;
}
projects / oota-llvm.git / blobdiff