//
//===----------------------------------------------------------------------===//
-#include "llvm/MC/MCParser/AsmLexer.h"
-#include "llvm/MC/MCParser/MCAsmLexer.h"
-#include "llvm/MC/MCContext.h"
+#include "Disassembler.h"
+#include "llvm/ADT/OwningPtr.h"
+#include "llvm/MC/MCAsmBackend.h"
+#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCCodeEmitter.h"
+#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCInstPrinter.h"
#include "llvm/MC/MCInstrInfo.h"
+#include "llvm/MC/MCObjectFileInfo.h"
+#include "llvm/MC/MCParser/AsmLexer.h"
+#include "llvm/MC/MCParser/MCAsmLexer.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/Target/TargetAsmBackend.h"
-#include "llvm/Target/TargetAsmParser.h"
-#include "llvm/Target/TargetData.h"
-#include "llvm/Target/TargetRegistry.h"
-#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/Support/CommandLine.h"
#include "llvm/Support/FileUtilities.h"
#include "llvm/Support/FormattedStream.h"
+#include "llvm/Support/Host.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/PrettyStackTrace.h"
+#include "llvm/Support/Signals.h"
#include "llvm/Support/SourceMgr.h"
+#include "llvm/Support/TargetRegistry.h"
+#include "llvm/Support/TargetSelect.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>
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"));
+DisableCFI("disable-cfi", cl::desc("Do not use .cfi_* directives"));
static cl::opt<bool>
-EnableLogging("enable-api-logging", cl::desc("Enable MC API logging"));
+NoExecStack("mc-no-exec-stack", cl::desc("File doesn't need an exec stack"));
enum OutputFileType {
OFT_Null,
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"),
"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
+ AC_EDisassemble,
+ AC_MDisassemble,
+ AC_HDisassemble
};
static cl::opt<ActionType>
"Disassemble strings of hex bytes"),
clEnumValN(AC_EDisassemble, "edis",
"Enhanced disassembly of strings of hex bytes"),
+ clEnumValN(AC_MDisassemble, "mdis",
+ "Marked up disassembly of strings of hex bytes"),
+ clEnumValN(AC_HDisassemble, "hdis",
+ "Disassemble strings of hex bytes printing "
+ "immediates as hex"),
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();
- }
+ TripleName = sys::getDefaultTargetTriple();
+ Triple TheTriple(Triple::normalize(TripleName));
// Get the target specific parser.
std::string Error;
- const Target *TheTarget = TargetRegistry::lookupTarget(TripleName, Error);
- if (TheTarget)
- return TheTarget;
+ const Target *TheTarget = TargetRegistry::lookupTarget(ArchName, TheTriple,
+ Error);
+ if (!TheTarget) {
+ errs() << ProgName << ": " << Error;
+ return 0;
+ }
- errs() << ProgName << ": error: unable to get target for '" << TripleName
- << "', see --version and --triple.\n";
- return 0;
+ // Update the triple name and return the found target.
+ TripleName = TheTriple.getTriple();
+ return TheTarget;
}
static tool_output_file *GetOutputStream() {
return Out;
}
-static int AsLexInput(const char *ProgName) {
- OwningPtr<MemoryBuffer> BufferPtr;
- if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputFilename, BufferPtr)) {
- errs() << ProgName << ": " << ec.message() << '\n';
- return 1;
+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 += " ";
}
- 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!");
+static int AsLexInput(SourceMgr &SrcMgr, MCAsmInfo &MAI, tool_output_file *Out) {
- AsmLexer Lexer(*MAI);
+ 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(), "unknown token", "warning");
+ SrcMgr.PrintMessage(Lexer.getLoc(), SourceMgr::DK_Warning,
+ "unknown token");
Error = true;
break;
case AsmToken::Error:
Out->os() << "\")\n";
}
- // Keep output if no errors.
- if (Error == 0) Out->keep();
-
return Error;
}
-static int AssembleInput(const char *ProgName) {
+static int AssembleInput(const char *ProgName, const Target *TheTarget,
+ SourceMgr &SrcMgr, MCContext &Ctx, MCStreamer &Str,
+ MCAsmInfo &MAI, MCSubtargetInfo &STI) {
+ OwningPtr<MCAsmParser> Parser(createMCAsmParser(SrcMgr, Ctx,
+ Str, 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);
+
+ 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);
+
+ const char *ProgName = argv[0];
const Target *TheTarget = GetTarget(ProgName);
if (!TheTarget)
return 1;
llvm::OwningPtr<MCRegisterInfo> MRI(TheTarget->createMCRegInfo(TripleName));
assert(MRI && "Unable to create target register info!");
- // Package up features to be passed to target/subtarget
- std::string FeaturesStr;
-
- // 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,
- MCPU,
- FeaturesStr,
- RelocModel));
-
- if (!TM) {
- errs() << ProgName << ": error: could not create target for triple '"
- << TripleName << "'.\n";
- return 1;
- }
+ // 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);
- const TargetAsmInfo *tai = new TargetAsmInfo(*TM);
- MCContext Ctx(*MAI, *MRI, tai);
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;
- const TargetLoweringObjectFile &TLOF =
- TM->getTargetLowering()->getObjFileLowering();
- const_cast<TargetLoweringObjectFile&>(TLOF).Initialize(Ctx, *TM);
-
OwningPtr<MCInstrInfo> MCII(TheTarget->createMCInstrInfo());
OwningPtr<MCSubtargetInfo>
STI(TheTarget->createMCSubtargetInfo(TripleName, MCPU, FeaturesStr));
- // FIXME: There is a bit of code duplication with addPassesToEmitFile.
+ MCInstPrinter *IP;
if (FileType == OFT_AssemblyFile) {
- MCInstPrinter *IP =
- TheTarget->createMCInstPrinter(OutputAsmVariant, *MAI);
+ IP =
+ TheTarget->createMCInstPrinter(OutputAsmVariant, *MAI, *MCII, *MRI, *STI);
MCCodeEmitter *CE = 0;
- TargetAsmBackend *TAB = 0;
+ MCAsmBackend *MAB = 0;
if (ShowEncoding) {
- CE = TheTarget->createCodeEmitter(*MCII, *STI, Ctx);
- TAB = TheTarget->createAsmBackend(TripleName);
+ CE = TheTarget->createMCCodeEmitter(*MCII, *MRI, *STI, Ctx);
+ MAB = TheTarget->createMCAsmBackend(TripleName, MCPU);
}
+ bool UseCFI = !DisableCFI;
Str.reset(TheTarget->createAsmStreamer(Ctx, FOS, /*asmverbose*/true,
/*useLoc*/ true,
- /*useCFI*/ true, IP, CE, TAB,
- ShowInst));
+ UseCFI,
+ /*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->createCodeEmitter(*MCII, *STI, 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()));
- }
-
- OwningPtr<MCAsmParser> Parser(createMCAsmParser(*TheTarget, SrcMgr, Ctx,
- *Str.get(), *MAI));
- OwningPtr<TargetAsmParser> TAP(TheTarget->createAsmParser(*STI, *Parser));
- if (!TAP) {
- errs() << ProgName
- << ": error: this target does not support assembly parsing.\n";
- return 1;
+ MCCodeEmitter *CE = TheTarget->createMCCodeEmitter(*MCII, *MRI, *STI, Ctx);
+ MCAsmBackend *MAB = TheTarget->createMCAsmBackend(TripleName, MCPU);
+ Str.reset(TheTarget->createMCObjectStreamer(TripleName, Ctx, *MAB,
+ FOS, CE, RelaxAll,
+ NoExecStack));
}
- 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 {
- Res = Disassembler::disassemble(*TheTarget, TripleName,
- *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();
- // FIXME: We shouldn't need to initialize the Target(Machine)s.
- llvm::InitializeAllTargets();
- llvm::InitializeAllMCAsmInfos();
- llvm::InitializeAllMCCodeGenInfos();
- llvm::InitializeAllMCInstrInfos();
- llvm::InitializeAllMCRegisterInfos();
- llvm::InitializeAllMCSubtargetInfos();
- llvm::InitializeAllAsmPrinters();
- llvm::InitializeAllAsmParsers();
- llvm::InitializeAllDisassemblers();
-
- cl::ParseCommandLineOptions(argc, argv, "llvm machine code playground\n");
- TripleName = Triple::normalize(TripleName);
-
+ int Res = 1;
+ bool disassemble = false;
switch (Action) {
- default:
case AC_AsLex:
- return AsLexInput(argv[0]);
+ Res = AsLexInput(SrcMgr, *MAI, Out.get());
+ break;
case AC_Assemble:
- return AssembleInput(argv[0]);
+ Res = AssembleInput(ProgName, TheTarget, SrcMgr, Ctx, *Str, *MAI, *STI);
+ break;
+ case AC_MDisassemble:
+ IP->setUseMarkup(1);
+ disassemble = true;
+ break;
+ case AC_HDisassemble:
+ IP->setPrintImmHex(1);
+ disassemble = true;
+ break;
case AC_Disassemble:
- return DisassembleInput(argv[0], false);
+ disassemble = true;
+ break;
case AC_EDisassemble:
- return DisassembleInput(argv[0], true);
+ Res = Disassembler::disassembleEnhanced(TripleName, *Buffer, SrcMgr, Out->os());
+ break;
}
+ if (disassemble)
+ Res = Disassembler::disassemble(*TheTarget, TripleName, *STI, *Str,
+ *Buffer, SrcMgr, Out->os());
- return 0;
+ // Keep output if no errors.
+ if (Res == 0) Out->keep();
+ return Res;
}
-
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