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-rw-r--r--contrib/llvm/tools/llvm-mc/Disassembler.cpp382
-rw-r--r--contrib/llvm/tools/llvm-mc/Disassembler.h42
-rw-r--r--contrib/llvm/tools/llvm-mc/llvm-mc.cpp532
3 files changed, 956 insertions, 0 deletions
diff --git a/contrib/llvm/tools/llvm-mc/Disassembler.cpp b/contrib/llvm/tools/llvm-mc/Disassembler.cpp
new file mode 100644
index 0000000..a8cd7c1
--- /dev/null
+++ b/contrib/llvm/tools/llvm-mc/Disassembler.cpp
@@ -0,0 +1,382 @@
+//===- Disassembler.cpp - Disassembler for hex strings --------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This class implements the disassembler of strings of bytes written in
+// hexadecimal, from standard input or from a file.
+//
+//===----------------------------------------------------------------------===//
+
+#include "Disassembler.h"
+#include "../../lib/MC/MCDisassembler/EDDisassembler.h"
+#include "../../lib/MC/MCDisassembler/EDInst.h"
+#include "../../lib/MC/MCDisassembler/EDOperand.h"
+#include "../../lib/MC/MCDisassembler/EDToken.h"
+#include "llvm/MC/MCAsmInfo.h"
+#include "llvm/MC/MCDisassembler.h"
+#include "llvm/MC/MCInst.h"
+#include "llvm/MC/MCInstPrinter.h"
+#include "llvm/MC/MCInstrInfo.h"
+#include "llvm/MC/MCRegisterInfo.h"
+#include "llvm/MC/MCSubtargetInfo.h"
+#include "llvm/ADT/OwningPtr.h"
+#include "llvm/ADT/Triple.h"
+#include "llvm/ADT/Twine.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/MemoryObject.h"
+#include "llvm/Support/SourceMgr.h"
+#include "llvm/Support/TargetRegistry.h"
+#include "llvm/Support/raw_ostream.h"
+using namespace llvm;
+
+typedef std::vector<std::pair<unsigned char, const char*> > ByteArrayTy;
+
+namespace {
+class VectorMemoryObject : public MemoryObject {
+private:
+ const ByteArrayTy &Bytes;
+public:
+ VectorMemoryObject(const ByteArrayTy &bytes) : Bytes(bytes) {}
+
+ uint64_t getBase() const { return 0; }
+ uint64_t getExtent() const { return Bytes.size(); }
+
+ int readByte(uint64_t Addr, uint8_t *Byte) const {
+ if (Addr >= getExtent())
+ return -1;
+ *Byte = Bytes[Addr].first;
+ return 0;
+ }
+};
+}
+
+static bool PrintInsts(const MCDisassembler &DisAsm,
+ MCInstPrinter &Printer, const ByteArrayTy &Bytes,
+ SourceMgr &SM, raw_ostream &Out) {
+ // Wrap the vector in a MemoryObject.
+ VectorMemoryObject memoryObject(Bytes);
+
+ // Disassemble it to strings.
+ uint64_t Size;
+ uint64_t Index;
+
+ for (Index = 0; Index < Bytes.size(); Index += Size) {
+ MCInst Inst;
+
+ MCDisassembler::DecodeStatus S;
+ S = DisAsm.getInstruction(Inst, Size, memoryObject, Index,
+ /*REMOVE*/ nulls(), nulls());
+ switch (S) {
+ case MCDisassembler::Fail:
+ SM.PrintMessage(SMLoc::getFromPointer(Bytes[Index].second),
+ SourceMgr::DK_Warning,
+ "invalid instruction encoding");
+ if (Size == 0)
+ Size = 1; // skip illegible bytes
+ break;
+
+ case MCDisassembler::SoftFail:
+ SM.PrintMessage(SMLoc::getFromPointer(Bytes[Index].second),
+ SourceMgr::DK_Warning,
+ "potentially undefined instruction encoding");
+ // Fall through
+
+ case MCDisassembler::Success:
+ Printer.printInst(&Inst, Out, "");
+ Out << "\n";
+ break;
+ }
+ }
+
+ return false;
+}
+
+static bool ByteArrayFromString(ByteArrayTy &ByteArray,
+ StringRef &Str,
+ SourceMgr &SM) {
+ while (!Str.empty()) {
+ // Strip horizontal whitespace.
+ if (size_t Pos = Str.find_first_not_of(" \t\r")) {
+ Str = Str.substr(Pos);
+ continue;
+ }
+
+ // If this is the end of a line or start of a comment, remove the rest of
+ // the line.
+ if (Str[0] == '\n' || Str[0] == '#') {
+ // Strip to the end of line if we already processed any bytes on this
+ // line. This strips the comment and/or the \n.
+ if (Str[0] == '\n') {
+ Str = Str.substr(1);
+ } else {
+ Str = Str.substr(Str.find_first_of('\n'));
+ if (!Str.empty())
+ Str = Str.substr(1);
+ }
+ continue;
+ }
+
+ // Get the current token.
+ size_t Next = Str.find_first_of(" \t\n\r#");
+ StringRef Value = Str.substr(0, Next);
+
+ // Convert to a byte and add to the byte vector.
+ unsigned ByteVal;
+ if (Value.getAsInteger(0, ByteVal) || ByteVal > 255) {
+ // If we have an error, print it and skip to the end of line.
+ SM.PrintMessage(SMLoc::getFromPointer(Value.data()), SourceMgr::DK_Error,
+ "invalid input token");
+ Str = Str.substr(Str.find('\n'));
+ ByteArray.clear();
+ continue;
+ }
+
+ ByteArray.push_back(std::make_pair((unsigned char)ByteVal, Value.data()));
+ Str = Str.substr(Next);
+ }
+
+ return false;
+}
+
+int Disassembler::disassemble(const Target &T,
+ const std::string &Triple,
+ const std::string &Cpu,
+ const std::string &FeaturesStr,
+ MemoryBuffer &Buffer,
+ raw_ostream &Out) {
+ // Set up disassembler.
+ OwningPtr<const MCAsmInfo> AsmInfo(T.createMCAsmInfo(Triple));
+
+ if (!AsmInfo) {
+ errs() << "error: no assembly info for target " << Triple << "\n";
+ return -1;
+ }
+
+ OwningPtr<const MCSubtargetInfo> STI(T.createMCSubtargetInfo(Triple, Cpu,
+ FeaturesStr));
+ if (!STI) {
+ errs() << "error: no subtarget info for target " << Triple << "\n";
+ return -1;
+ }
+
+ OwningPtr<const MCDisassembler> DisAsm(T.createMCDisassembler(*STI));
+ if (!DisAsm) {
+ errs() << "error: no disassembler for target " << Triple << "\n";
+ return -1;
+ }
+
+ OwningPtr<const MCRegisterInfo> MRI(T.createMCRegInfo(Triple));
+ if (!MRI) {
+ errs() << "error: no register info for target " << Triple << "\n";
+ return -1;
+ }
+
+ OwningPtr<const MCInstrInfo> MII(T.createMCInstrInfo());
+ if (!MII) {
+ errs() << "error: no instruction info for target " << Triple << "\n";
+ return -1;
+ }
+
+ int AsmPrinterVariant = AsmInfo->getAssemblerDialect();
+ OwningPtr<MCInstPrinter> IP(T.createMCInstPrinter(AsmPrinterVariant, *AsmInfo,
+ *MII, *MRI, *STI));
+ if (!IP) {
+ errs() << "error: no instruction printer for target " << Triple << '\n';
+ return -1;
+ }
+
+ bool ErrorOccurred = false;
+
+ SourceMgr SM;
+ SM.AddNewSourceBuffer(&Buffer, SMLoc());
+
+ // Convert the input to a vector for disassembly.
+ ByteArrayTy ByteArray;
+ StringRef Str = Buffer.getBuffer();
+
+ ErrorOccurred |= ByteArrayFromString(ByteArray, Str, SM);
+
+ if (!ByteArray.empty())
+ ErrorOccurred |= PrintInsts(*DisAsm, *IP, ByteArray, SM, Out);
+
+ return ErrorOccurred;
+}
+
+static int byteArrayReader(uint8_t *B, uint64_t A, void *Arg) {
+ ByteArrayTy &ByteArray = *((ByteArrayTy*)Arg);
+
+ if (A >= ByteArray.size())
+ return -1;
+
+ *B = ByteArray[A].first;
+
+ return 0;
+}
+
+static int verboseEvaluator(uint64_t *V, unsigned R, void *Arg) {
+ EDDisassembler &disassembler = *(EDDisassembler *)((void **)Arg)[0];
+ raw_ostream &Out = *(raw_ostream *)((void **)Arg)[1];
+
+ if (const char *regName = disassembler.nameWithRegisterID(R))
+ Out << "[" << regName << "/" << R << "]";
+
+ if (disassembler.registerIsStackPointer(R))
+ Out << "(sp)";
+ if (disassembler.registerIsProgramCounter(R))
+ Out << "(pc)";
+
+ *V = 0;
+ return 0;
+}
+
+int Disassembler::disassembleEnhanced(const std::string &TS,
+ MemoryBuffer &Buffer,
+ raw_ostream &Out) {
+ ByteArrayTy ByteArray;
+ StringRef Str = Buffer.getBuffer();
+ SourceMgr SM;
+
+ SM.AddNewSourceBuffer(&Buffer, SMLoc());
+
+ if (ByteArrayFromString(ByteArray, Str, SM)) {
+ return -1;
+ }
+
+ Triple T(TS);
+ EDDisassembler::AssemblySyntax AS;
+
+ switch (T.getArch()) {
+ default:
+ errs() << "error: no default assembly syntax for " << TS.c_str() << "\n";
+ return -1;
+ case Triple::arm:
+ case Triple::thumb:
+ AS = EDDisassembler::kEDAssemblySyntaxARMUAL;
+ break;
+ case Triple::x86:
+ case Triple::x86_64:
+ AS = EDDisassembler::kEDAssemblySyntaxX86ATT;
+ break;
+ }
+
+ OwningPtr<EDDisassembler>
+ disassembler(EDDisassembler::getDisassembler(TS.c_str(), AS));
+
+ if (disassembler == 0) {
+ errs() << "error: couldn't get disassembler for " << TS << '\n';
+ return -1;
+ }
+
+ while (ByteArray.size()) {
+ OwningPtr<EDInst>
+ inst(disassembler->createInst(byteArrayReader, 0, &ByteArray));
+
+ if (inst == 0) {
+ errs() << "error: Didn't get an instruction\n";
+ return -1;
+ }
+
+ ByteArray.erase (ByteArray.begin(), ByteArray.begin() + inst->byteSize());
+
+ unsigned numTokens = inst->numTokens();
+ if ((int)numTokens < 0) {
+ errs() << "error: couldn't count the instruction's tokens\n";
+ return -1;
+ }
+
+ for (unsigned tokenIndex = 0; tokenIndex != numTokens; ++tokenIndex) {
+ EDToken *token;
+
+ if (inst->getToken(token, tokenIndex)) {
+ errs() << "error: Couldn't get token\n";
+ return -1;
+ }
+
+ const char *buf;
+ if (token->getString(buf)) {
+ errs() << "error: Couldn't get string for token\n";
+ return -1;
+ }
+
+ Out << '[';
+ int operandIndex = token->operandID();
+
+ if (operandIndex >= 0)
+ Out << operandIndex << "-";
+
+ switch (token->type()) {
+ case EDToken::kTokenWhitespace: Out << "w"; break;
+ case EDToken::kTokenPunctuation: Out << "p"; break;
+ case EDToken::kTokenOpcode: Out << "o"; break;
+ case EDToken::kTokenLiteral: Out << "l"; break;
+ case EDToken::kTokenRegister: Out << "r"; break;
+ }
+
+ Out << ":" << buf;
+
+ if (token->type() == EDToken::kTokenLiteral) {
+ Out << "=";
+ if (token->literalSign())
+ Out << "-";
+ uint64_t absoluteValue;
+ if (token->literalAbsoluteValue(absoluteValue)) {
+ errs() << "error: Couldn't get the value of a literal token\n";
+ return -1;
+ }
+ Out << absoluteValue;
+ } else if (token->type() == EDToken::kTokenRegister) {
+ Out << "=";
+ unsigned regID;
+ if (token->registerID(regID)) {
+ errs() << "error: Couldn't get the ID of a register token\n";
+ return -1;
+ }
+ Out << "r" << regID;
+ }
+
+ Out << "]";
+ }
+
+ Out << " ";
+
+ if (inst->isBranch())
+ Out << "<br> ";
+ if (inst->isMove())
+ Out << "<mov> ";
+
+ unsigned numOperands = inst->numOperands();
+
+ if ((int)numOperands < 0) {
+ errs() << "error: Couldn't count operands\n";
+ return -1;
+ }
+
+ for (unsigned operandIndex = 0; operandIndex != numOperands;
+ ++operandIndex) {
+ Out << operandIndex << ":";
+
+ EDOperand *operand;
+ if (inst->getOperand(operand, operandIndex)) {
+ errs() << "error: couldn't get operand\n";
+ return -1;
+ }
+
+ uint64_t evaluatedResult;
+ void *Arg[] = { disassembler.get(), &Out };
+ if (operand->evaluate(evaluatedResult, verboseEvaluator, Arg)) {
+ errs() << "error: Couldn't evaluate an operand\n";
+ return -1;
+ }
+ Out << "=" << evaluatedResult << " ";
+ }
+
+ Out << '\n';
+ }
+
+ return 0;
+}
diff --git a/contrib/llvm/tools/llvm-mc/Disassembler.h b/contrib/llvm/tools/llvm-mc/Disassembler.h
new file mode 100644
index 0000000..e8cd92d
--- /dev/null
+++ b/contrib/llvm/tools/llvm-mc/Disassembler.h
@@ -0,0 +1,42 @@
+//===- Disassembler.h - Text File Disassembler ----------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This class implements the disassembler of strings of bytes written in
+// hexadecimal, from standard input or from a file.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef DISASSEMBLER_H
+#define DISASSEMBLER_H
+
+#include <string>
+
+namespace llvm {
+
+class MemoryBuffer;
+class Target;
+class raw_ostream;
+
+class Disassembler {
+public:
+ static int disassemble(const Target &target,
+ const std::string &tripleString,
+ const std::string &Cpu,
+ const std::string &FeaturesStr,
+ MemoryBuffer &buffer,
+ raw_ostream &Out);
+
+ static int disassembleEnhanced(const std::string &tripleString,
+ MemoryBuffer &buffer,
+ raw_ostream &Out);
+};
+
+} // namespace llvm
+
+#endif
diff --git a/contrib/llvm/tools/llvm-mc/llvm-mc.cpp b/contrib/llvm/tools/llvm-mc/llvm-mc.cpp
new file mode 100644
index 0000000..d882e01
--- /dev/null
+++ b/contrib/llvm/tools/llvm-mc/llvm-mc.cpp
@@ -0,0 +1,532 @@
+//===-- 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/AsmLexer.h"
+#include "llvm/MC/MCParser/MCAsmLexer.h"
+#include "llvm/MC/MCAsmBackend.h"
+#include "llvm/MC/MCContext.h"
+#include "llvm/MC/MCCodeEmitter.h"
+#include "llvm/MC/MCInstPrinter.h"
+#include "llvm/MC/MCInstrInfo.h"
+#include "llvm/MC/MCObjectFileInfo.h"
+#include "llvm/MC/MCRegisterInfo.h"
+#include "llvm/MC/MCSectionMachO.h"
+#include "llvm/MC/MCStreamer.h"
+#include "llvm/MC/MCSubtargetInfo.h"
+#include "llvm/MC/MCTargetAsmParser.h"
+#include "llvm/MC/SubtargetFeature.h"
+#include "llvm/ADT/OwningPtr.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/ToolOutputFile.h"
+#include "llvm/Support/Host.h"
+#include "llvm/Support/Signals.h"
+#include "llvm/Support/TargetRegistry.h"
+#include "llvm/Support/TargetSelect.h"
+#include "llvm/Support/system_error.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<bool>
+ShowInstOperands("show-inst-operands",
+ cl::desc("Show instructions operands as parsed"));
+
+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"));
+
+enum OutputFileType {
+ OFT_Null,
+ 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_Null, "null",
+ "Don't emit anything (for timing purposes)"),
+ clEnumValN(OFT_ObjectFile, "obj",
+ "Emit a native object ('.o') file"),
+ clEnumValEnd));
+
+static cl::list<std::string>
+IncludeDirs("I", cl::desc("Directory of include files"),
+ cl::value_desc("directory"), cl::Prefix);
+
+static cl::opt<std::string>
+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::list<std::string>
+MAttrs("mattr",
+ cl::CommaSeparated,
+ cl::desc("Target specific attributes (-mattr=help for details)"),
+ cl::value_desc("a1,+a2,-a3,..."));
+
+static cl::opt<Reloc::Model>
+RelocModel("relocation-model",
+ cl::desc("Choose relocation model"),
+ cl::init(Reloc::Default),
+ cl::values(
+ clEnumValN(Reloc::Default, "default",
+ "Target default relocation model"),
+ clEnumValN(Reloc::Static, "static",
+ "Non-relocatable code"),
+ clEnumValN(Reloc::PIC_, "pic",
+ "Fully relocatable, position independent code"),
+ clEnumValN(Reloc::DynamicNoPIC, "dynamic-no-pic",
+ "Relocatable external references, non-relocatable code"),
+ clEnumValEnd));
+
+static cl::opt<llvm::CodeModel::Model>
+CMModel("code-model",
+ cl::desc("Choose code model"),
+ cl::init(CodeModel::Default),
+ cl::values(clEnumValN(CodeModel::Default, "default",
+ "Target default code model"),
+ clEnumValN(CodeModel::Small, "small",
+ "Small code model"),
+ clEnumValN(CodeModel::Kernel, "kernel",
+ "Kernel code model"),
+ clEnumValN(CodeModel::Medium, "medium",
+ "Medium code model"),
+ clEnumValN(CodeModel::Large, "large",
+ "Large code model"),
+ clEnumValEnd));
+
+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"));
+
+static cl::opt<bool>
+GenDwarfForAssembly("g", cl::desc("Generate dwarf debugging info for assembly "
+ "source files"));
+
+enum ActionType {
+ AC_AsLex,
+ AC_Assemble,
+ AC_Disassemble,
+ AC_EDisassemble
+};
+
+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"),
+ 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::getDefaultTargetTriple();
+ Triple TheTriple(Triple::normalize(TripleName));
+
+ const Target *TheTarget = 0;
+ if (!ArchName.empty()) {
+ for (TargetRegistry::iterator it = TargetRegistry::begin(),
+ ie = TargetRegistry::end(); it != ie; ++it) {
+ if (ArchName == it->getName()) {
+ TheTarget = &*it;
+ break;
+ }
+ }
+
+ if (!TheTarget) {
+ errs() << ProgName << ": error: invalid target '" << ArchName << "'.\n";
+ return 0;
+ }
+
+ // Adjust the triple to match (if known), otherwise stick with the
+ // module/host triple.
+ Triple::ArchType Type = Triple::getArchTypeForLLVMName(ArchName);
+ if (Type != Triple::UnknownArch)
+ TheTriple.setArch(Type);
+ } else {
+ // Get the target specific parser.
+ std::string Error;
+ TheTarget = TargetRegistry::lookupTarget(TheTriple.getTriple(), Error);
+ if (TheTarget == 0) {
+ errs() << ProgName << ": error: unable to get target for '"
+ << TheTriple.getTriple()
+ << "', see --version and --triple.\n";
+ return 0;
+ }
+ }
+
+ TripleName = TheTriple.getTriple();
+ return TheTarget;
+}
+
+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 std::string DwarfDebugFlags;
+static void setDwarfDebugFlags(int argc, char **argv) {
+ if (!getenv("RC_DEBUG_OPTIONS"))
+ return;
+ for (int i = 0; i < argc; i++) {
+ DwarfDebugFlags += argv[i];
+ if (i + 1 < argc)
+ DwarfDebugFlags += " ";
+ }
+}
+
+static int AsLexInput(const char *ProgName) {
+ 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);
+
+ const Target *TheTarget = GetTarget(ProgName);
+ if (!TheTarget)
+ return 1;
+
+ llvm::OwningPtr<MCAsmInfo> MAI(TheTarget->createMCAsmInfo(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)) {
+ AsmToken Tok = Lexer.getTok();
+
+ switch (Tok.getKind()) {
+ default:
+ SrcMgr.PrintMessage(Lexer.getLoc(), SourceMgr::DK_Warning,
+ "unknown token");
+ Error = true;
+ break;
+ case AsmToken::Error:
+ Error = true; // error already printed.
+ break;
+ case AsmToken::Identifier:
+ 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:
+ Out->os() << "register: " << Lexer.getTok().getRegVal();
+ break;
+ case AsmToken::String:
+ Out->os() << "string: " << Lexer.getTok().getString();
+ 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;
+ }
+
+ // Print the token string.
+ Out->os() << " (\"";
+ Out->os().write_escaped(Tok.getString());
+ Out->os() << "\")\n";
+ }
+
+ // Keep output if no errors.
+ if (Error == 0) Out->keep();
+
+ return Error;
+}
+
+static int AssembleInput(const char *ProgName) {
+ const Target *TheTarget = GetTarget(ProgName);
+ if (!TheTarget)
+ return 1;
+
+ 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);
+
+
+ llvm::OwningPtr<MCAsmInfo> MAI(TheTarget->createMCAsmInfo(TripleName));
+ assert(MAI && "Unable to create target asm info!");
+
+ llvm::OwningPtr<MCRegisterInfo> MRI(TheTarget->createMCRegInfo(TripleName));
+ assert(MRI && "Unable to create target register info!");
+
+ // FIXME: This is not pretty. MCContext has a ptr to MCObjectFileInfo and
+ // MCObjectFileInfo needs a MCContext reference in order to initialize itself.
+ OwningPtr<MCObjectFileInfo> MOFI(new MCObjectFileInfo());
+ MCContext Ctx(*MAI, *MRI, MOFI.get(), &SrcMgr);
+ MOFI->InitMCObjectFileInfo(TripleName, RelocModel, CMModel, Ctx);
+
+ if (SaveTempLabels)
+ Ctx.setAllowTemporaryLabels(false);
+
+ Ctx.setGenDwarfForAssembly(GenDwarfForAssembly);
+ if (!DwarfDebugFlags.empty())
+ Ctx.setDwarfDebugFlags(StringRef(DwarfDebugFlags));
+
+ // Package up features to be passed to target/subtarget
+ std::string FeaturesStr;
+ if (MAttrs.size()) {
+ SubtargetFeatures Features;
+ for (unsigned i = 0; i != MAttrs.size(); ++i)
+ Features.AddFeature(MAttrs[i]);
+ FeaturesStr = Features.getString();
+ }
+
+ OwningPtr<tool_output_file> Out(GetOutputStream());
+ if (!Out)
+ return 1;
+
+ formatted_raw_ostream FOS(Out->os());
+ OwningPtr<MCStreamer> Str;
+
+ OwningPtr<MCInstrInfo> MCII(TheTarget->createMCInstrInfo());
+ OwningPtr<MCSubtargetInfo>
+ STI(TheTarget->createMCSubtargetInfo(TripleName, MCPU, FeaturesStr));
+
+ // FIXME: There is a bit of code duplication with addPassesToEmitFile.
+ if (FileType == OFT_AssemblyFile) {
+ MCInstPrinter *IP =
+ TheTarget->createMCInstPrinter(OutputAsmVariant, *MAI, *MCII, *MRI, *STI);
+ MCCodeEmitter *CE = 0;
+ MCAsmBackend *MAB = 0;
+ if (ShowEncoding) {
+ CE = TheTarget->createMCCodeEmitter(*MCII, *STI, Ctx);
+ MAB = TheTarget->createMCAsmBackend(TripleName);
+ }
+ Str.reset(TheTarget->createAsmStreamer(Ctx, FOS, /*asmverbose*/true,
+ /*useLoc*/ true,
+ /*useCFI*/ true,
+ /*useDwarfDirectory*/ true,
+ IP, CE, MAB, ShowInst));
+
+ } else if (FileType == OFT_Null) {
+ Str.reset(createNullStreamer(Ctx));
+ } else {
+ assert(FileType == OFT_ObjectFile && "Invalid file type!");
+ MCCodeEmitter *CE = TheTarget->createMCCodeEmitter(*MCII, *STI, Ctx);
+ MCAsmBackend *MAB = TheTarget->createMCAsmBackend(TripleName);
+ Str.reset(TheTarget->createMCObjectStreamer(TripleName, Ctx, *MAB,
+ FOS, CE, RelaxAll,
+ NoExecStack));
+ }
+
+ OwningPtr<MCAsmParser> Parser(createMCAsmParser(SrcMgr, Ctx,
+ *Str.get(), *MAI));
+ OwningPtr<MCTargetAsmParser> TAP(TheTarget->createMCAsmParser(*STI, *Parser));
+ if (!TAP) {
+ errs() << ProgName
+ << ": error: this target does not support assembly parsing.\n";
+ return 1;
+ }
+
+ Parser->setShowParsedOperands(ShowInstOperands);
+ Parser->setTargetParser(*TAP.get());
+
+ 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 (MAttrs.size()) {
+ SubtargetFeatures Features;
+ for (unsigned i = 0; i != MAttrs.size(); ++i)
+ Features.AddFeature(MAttrs[i]);
+ FeaturesStr = Features.getString();
+ }
+
+ Res = Disassembler::disassemble(*TheTarget, TripleName, MCPU, FeaturesStr,
+ *Buffer.take(), Out->os());
+ }
+
+ // Keep output if no errors.
+ if (Res == 0) Out->keep();
+
+ return Res;
+}
+
+
+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();
+ llvm::InitializeAllTargetMCs();
+ llvm::InitializeAllAsmParsers();
+ llvm::InitializeAllDisassemblers();
+
+ // Register the target printer for --version.
+ cl::AddExtraVersionPrinter(TargetRegistry::printRegisteredTargetsForVersion);
+
+ cl::ParseCommandLineOptions(argc, argv, "llvm machine code playground\n");
+ TripleName = Triple::normalize(TripleName);
+ setDwarfDebugFlags(argc, argv);
+
+ switch (Action) {
+ case AC_AsLex:
+ 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);
+ }
+}
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