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-rw-r--r--contrib/llvm/tools/llvm-mc/CMakeLists.txt7
-rw-r--r--contrib/llvm/tools/llvm-mc/Disassembler.cpp360
-rw-r--r--contrib/llvm/tools/llvm-mc/Disassembler.h37
-rw-r--r--contrib/llvm/tools/llvm-mc/Makefile27
-rw-r--r--contrib/llvm/tools/llvm-mc/llvm-mc.cpp392
5 files changed, 823 insertions, 0 deletions
diff --git a/contrib/llvm/tools/llvm-mc/CMakeLists.txt b/contrib/llvm/tools/llvm-mc/CMakeLists.txt
new file mode 100644
index 0000000..8b61a4e
--- /dev/null
+++ b/contrib/llvm/tools/llvm-mc/CMakeLists.txt
@@ -0,0 +1,7 @@
+set( LLVM_USED_LIBS EnhancedDisassembly)
+set(LLVM_LINK_COMPONENTS ${LLVM_TARGETS_TO_BUILD} support MC MCParser)
+
+add_llvm_tool(llvm-mc
+ llvm-mc.cpp
+ Disassembler.cpp
+ )
diff --git a/contrib/llvm/tools/llvm-mc/Disassembler.cpp b/contrib/llvm/tools/llvm-mc/Disassembler.cpp
new file mode 100644
index 0000000..37b2cb8
--- /dev/null
+++ b/contrib/llvm/tools/llvm-mc/Disassembler.cpp
@@ -0,0 +1,360 @@
+//===- 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 "llvm/ADT/OwningPtr.h"
+#include "llvm/ADT/Triple.h"
+#include "llvm/MC/MCAsmInfo.h"
+#include "llvm/MC/MCDisassembler.h"
+#include "llvm/MC/MCInst.h"
+#include "llvm/MC/MCInstPrinter.h"
+#include "llvm/Target/TargetRegistry.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/MemoryObject.h"
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/Support/SourceMgr.h"
+
+#include "llvm-c/EnhancedDisassembly.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) {
+ // 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;
+
+ if (DisAsm.getInstruction(Inst, Size, memoryObject, Index,
+ /*REMOVE*/ nulls())) {
+ Printer.printInst(&Inst, outs());
+ outs() << "\n";
+ } else {
+ SM.PrintMessage(SMLoc::getFromPointer(Bytes[Index].second),
+ "invalid instruction encoding", "warning");
+ if (Size == 0)
+ Size = 1; // skip illegible bytes
+ }
+ }
+
+ 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()),
+ "invalid input token", "error");
+ 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,
+ MemoryBuffer &Buffer) {
+ // Set up disassembler.
+ OwningPtr<const MCAsmInfo> AsmInfo(T.createAsmInfo(Triple));
+
+ if (!AsmInfo) {
+ errs() << "error: no assembly info for target " << Triple << "\n";
+ return -1;
+ }
+
+ OwningPtr<const MCDisassembler> DisAsm(T.createMCDisassembler());
+ if (!DisAsm) {
+ errs() << "error: no disassembler for target " << Triple << "\n";
+ return -1;
+ }
+
+ int AsmPrinterVariant = AsmInfo->getAssemblerDialect();
+ OwningPtr<MCInstPrinter> IP(T.createMCInstPrinter(AsmPrinterVariant,
+ *AsmInfo));
+ 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);
+
+ 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) {
+ EDDisassemblerRef &disassembler = *((EDDisassemblerRef*)Arg);
+
+ const char *regName;
+
+ if (!EDGetRegisterName(&regName,
+ disassembler,
+ R))
+ outs() << "[" << regName << "/" << R << "]";
+ if (EDRegisterIsStackPointer(disassembler, R))
+ outs() << "(sp)";
+ if (EDRegisterIsProgramCounter(disassembler, R))
+ outs() << "(pc)";
+
+ *V = 0;
+
+ return 0;
+}
+
+int Disassembler::disassembleEnhanced(const std::string &TS,
+ MemoryBuffer &Buffer) {
+ ByteArrayTy ByteArray;
+ StringRef Str = Buffer.getBuffer();
+ SourceMgr SM;
+
+ SM.AddNewSourceBuffer(&Buffer, SMLoc());
+
+ if (ByteArrayFromString(ByteArray, Str, SM)) {
+ return -1;
+ }
+
+ EDDisassemblerRef disassembler;
+
+ Triple T(TS);
+ EDAssemblySyntax_t 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 = kEDAssemblySyntaxARMUAL;
+ break;
+ case Triple::x86:
+ case Triple::x86_64:
+ AS = kEDAssemblySyntaxX86ATT;
+ break;
+ }
+
+ if (EDGetDisassembler(&disassembler,
+ TS.c_str(),
+ AS)) {
+ errs() << "error: couldn't get disassembler for " << TS.c_str() << "\n";
+ return -1;
+ }
+
+ EDInstRef inst;
+
+ if (EDCreateInsts(&inst, 1, disassembler, byteArrayReader, 0,&ByteArray)
+ != 1) {
+ errs() << "error: Didn't get an instruction\n";
+ return -1;
+ }
+
+ int numTokens = EDNumTokens(inst);
+
+ if (numTokens < 0) {
+ errs() << "error: Couldn't count the instruction's tokens\n";
+ return -1;
+ }
+
+ int tokenIndex;
+
+ for (tokenIndex = 0; tokenIndex < numTokens; ++tokenIndex) {
+ EDTokenRef token;
+
+ if (EDGetToken(&token, inst, tokenIndex)) {
+ errs() << "error: Couldn't get token\n";
+ return -1;
+ }
+
+ const char *buf;
+
+ if (EDGetTokenString(&buf, token)) {
+ errs() << "error: Couldn't get string for token\n";
+ return -1;
+ }
+
+ outs() << "[";
+
+ int operandIndex = EDOperandIndexForToken(token);
+
+ if (operandIndex >= 0)
+ outs() << operandIndex << "-";
+
+ if (EDTokenIsWhitespace(token)) {
+ outs() << "w";
+ } else if (EDTokenIsPunctuation(token)) {
+ outs() << "p";
+ } else if (EDTokenIsOpcode(token)) {
+ outs() << "o";
+ } else if (EDTokenIsLiteral(token)) {
+ outs() << "l";
+ } else if (EDTokenIsRegister(token)) {
+ outs() << "r";
+ } else {
+ outs() << "?";
+ }
+
+ outs() << ":" << buf;
+
+ if (EDTokenIsLiteral(token)) {
+ outs() << "=";
+ if (EDTokenIsNegativeLiteral(token))
+ outs() << "-";
+ uint64_t absoluteValue;
+ if (EDLiteralTokenAbsoluteValue(&absoluteValue, token)) {
+ errs() << "error: Couldn't get the value of a literal token\n";
+ return -1;
+ }
+ outs() << absoluteValue;
+ } else if (EDTokenIsRegister(token)) {
+ outs() << "=";
+ unsigned regID;
+ if (EDRegisterTokenValue(&regID, token)) {
+ errs() << "error: Couldn't get the ID of a register token\n";
+ return -1;
+ }
+ outs() << "r" << regID;
+ }
+
+ outs() << "]";
+ }
+
+ outs() << " ";
+
+ if (EDInstIsBranch(inst))
+ outs() << "<br> ";
+ if (EDInstIsMove(inst))
+ outs() << "<mov> ";
+
+ int numOperands = EDNumOperands(inst);
+
+ if (numOperands < 0) {
+ errs() << "error: Couldn't count operands\n";
+ return -1;
+ }
+
+ int operandIndex;
+
+ for (operandIndex = 0; operandIndex < numOperands; ++operandIndex) {
+ outs() << operandIndex << ":";
+
+ EDOperandRef operand;
+
+ if (EDGetOperand(&operand,
+ inst,
+ operandIndex)) {
+ errs() << "error: Couldn't get operand\n";
+ return -1;
+ }
+
+ uint64_t evaluatedResult;
+
+ EDEvaluateOperand(&evaluatedResult,
+ operand,
+ verboseEvaluator,
+ &disassembler);
+
+ outs() << "=" << evaluatedResult;
+
+ outs() << " ";
+ }
+
+ outs() << "\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..3da2396
--- /dev/null
+++ b/contrib/llvm/tools/llvm-mc/Disassembler.h
@@ -0,0 +1,37 @@
+//===- 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 Target;
+class MemoryBuffer;
+
+class Disassembler {
+public:
+ static int disassemble(const Target &target,
+ const std::string &tripleString,
+ MemoryBuffer &buffer);
+
+ static int disassembleEnhanced(const std::string &tripleString,
+ MemoryBuffer &buffer);
+};
+
+} // namespace llvm
+
+#endif
diff --git a/contrib/llvm/tools/llvm-mc/Makefile b/contrib/llvm/tools/llvm-mc/Makefile
new file mode 100644
index 0000000..f92e643
--- /dev/null
+++ b/contrib/llvm/tools/llvm-mc/Makefile
@@ -0,0 +1,27 @@
+##===- tools/llvm-mc/Makefile ------------------------------*- Makefile -*-===##
+#
+# The LLVM Compiler Infrastructure
+#
+# This file is distributed under the University of Illinois Open Source
+# License. See LICENSE.TXT for details.
+#
+##===----------------------------------------------------------------------===##
+
+LEVEL = ../..
+TOOLNAME = llvm-mc
+
+# This tool has no plugins, optimize startup time.
+TOOL_NO_EXPORTS = 1
+NO_INSTALL = 1
+
+# Include this here so we can get the configuration of the targets
+# that have been configured for construction. We have to do this
+# early so we can set up LINK_COMPONENTS before including Makefile.rules
+include $(LEVEL)/Makefile.config
+
+LINK_COMPONENTS := $(TARGETS_TO_BUILD) MCParser MC support
+
+include $(LLVM_SRC_ROOT)/Makefile.rules
+
+# Using LIBS instead of USEDLIBS to force static linking
+LIBS += $(LLVMLibDir)/libEnhancedDisassembly.a
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..a114ab0
--- /dev/null
+++ b/contrib/llvm/tools/llvm-mc/llvm-mc.cpp
@@ -0,0 +1,392 @@
+//===-- 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/MC/MCParser/AsmParser.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 "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 "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"));
+
+static cl::opt<bool>
+RelaxAll("mc-relax-all", cl::desc("Relax all fixups"));
+
+static cl::opt<bool>
+EnableLogging("enable-api-logging", cl::desc("Enable MC API logging"));
+
+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<bool>
+NoInitialTextSection("n", cl::desc(
+ "Don't assume assembly file starts in the text section"));
+
+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::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,
+ &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;
+
+ llvm::OwningPtr<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);
+
+
+ llvm::OwningPtr<MCAsmInfo> MAI(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, ""));
+
+ 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);
+ if (ShowEncoding)
+ CE.reset(TheTarget->createCodeEmitter(*TM, Ctx));
+ Str.reset(createAsmStreamer(Ctx, *Out,TM->getTargetData()->isLittleEndian(),
+ /*asmverbose*/true, IP, CE.get(), ShowInst));
+ } else if (FileType == OFT_Null) {
+ Str.reset(createNullStreamer(Ctx));
+ } else {
+ assert(FileType == OFT_ObjectFile && "Invalid file type!");
+ CE.reset(TheTarget->createCodeEmitter(*TM, Ctx));
+ TAB.reset(TheTarget->createAsmBackend(TripleName));
+ Str.reset(TheTarget->createObjectStreamer(TripleName, Ctx, *TAB,
+ *Out, CE.get(), RelaxAll));
+ }
+
+ if (EnableLogging) {
+ Str.reset(createLoggingStreamer(Str.take(), errs()));
+ }
+
+ 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(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, bool Enhanced) {
+ 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())
+ errs() << ErrorMessage << "\n";
+ else
+ errs() << "input file didn't read correctly.\n";
+ return 1;
+ }
+
+ if (Enhanced)
+ return Disassembler::disassembleEnhanced(TripleName, *Buffer);
+ else
+ 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], false);
+ case AC_EDisassemble:
+ return DisassembleInput(argv[0], true);
+ }
+
+ return 0;
+}
+
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