//
//===----------------------------------------------------------------------===//
-#include "llvm/MC/MCParser/AsmLexer.h"
-#include "llvm/MC/MCParser/MCAsmLexer.h"
+#include "Disassembler.h"
+#include "llvm/MC/MCAsmBackend.h"
+#include "llvm/MC/MCAsmInfo.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/MCParser/AsmLexer.h"
+#include "llvm/MC/MCRegisterInfo.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/MC/MCSubtargetInfo.h"
+#include "llvm/MC/MCTargetAsmParser.h"
+#include "llvm/MC/MCTargetOptionsCommandFlags.h"
#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/Compression.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>
static cl::opt<bool>
ShowEncoding("show-encoding", cl::desc("Show instruction encodings"));
+static cl::opt<bool>
+CompressDebugSections("compress-debug-sections",
+ cl::desc("Compress DWARF debug sections"));
+
static cl::opt<bool>
ShowInst("show-inst", cl::desc("Show internal instruction representation"));
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"));
+PrintImmHex("print-imm-hex", cl::init(false),
+ cl::desc("Prefer hex format for immediate values"));
enum OutputFileType {
OFT_Null,
static cl::opt<std::string>
ArchName("arch", cl::desc("Target arch to assemble for, "
- "see -version for available targets"));
+ "see -version for available targets"));
static cl::opt<std::string>
TripleName("triple", cl::desc("Target triple to assemble for, "
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>
-NoInitialTextSection("n", cl::desc(
- "Don't assume assembly file starts in the text section"));
+GenDwarfForAssembly("g", cl::desc("Generate dwarf debugging info for assembly "
+ "source files"));
+
+static cl::opt<std::string>
+DebugCompilationDir("fdebug-compilation-dir",
+ cl::desc("Specifies the debug info's compilation dir"));
+
+static cl::opt<std::string>
+MainFileName("main-file-name",
+ cl::desc("Specifies the name we should consider the input file"));
+
+static cl::opt<bool> SaveTempLabels("save-temp-labels",
+ cl::desc("Don't discard temporary labels"));
+
+static cl::opt<bool> NoExecStack("no-exec-stack",
+ cl::desc("File doesn't need an exec stack"));
enum ActionType {
AC_AsLex,
AC_Assemble,
AC_Disassemble,
- AC_EDisassemble
+ AC_MDisassemble,
};
static cl::opt<ActionType>
"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"),
+ clEnumValN(AC_MDisassemble, "mdis",
+ "Marked up 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();
- }
+ 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 nullptr;
+ }
- 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() {
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';
+ std::error_code EC;
+ tool_output_file *Out =
+ new tool_output_file(OutputFilename, EC, sys::fs::F_None);
+ if (EC) {
+ errs() << EC.message() << '\n';
delete Out;
- return 0;
+ return nullptr;
}
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->createAsmInfo(TripleName));
- assert(MAI && "Unable to create target asm info!");
+static std::string DwarfDebugProducer;
+static void setDwarfDebugProducer(void) {
+ if(!getenv("DEBUG_PRODUCER"))
+ return;
+ DwarfDebugProducer += getenv("DEBUG_PRODUCER");
+}
- AsmLexer Lexer(*MAI);
- Lexer.setBuffer(SrcMgr.getMemoryBuffer(0));
+static int AsLexInput(SourceMgr &SrcMgr, MCAsmInfo &MAI,
+ tool_output_file *Out) {
- OwningPtr<tool_output_file> Out(GetOutputStream());
- if (!Out)
- return 1;
+ AsmLexer Lexer(MAI);
+ Lexer.setBuffer(SrcMgr.getMemoryBuffer(SrcMgr.getMainFileID())->getBuffer());
bool Error = false;
while (Lexer.Lex().isNot(AsmToken::Eof)) {
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:
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;
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,
+ MCInstrInfo &MCII, MCTargetOptions &MCOptions) {
+ std::unique_ptr<MCAsmParser> Parser(
+ createMCAsmParser(SrcMgr, Ctx, Str, MAI));
+ std::unique_ptr<MCTargetAsmParser> TAP(
+ TheTarget->createMCAsmParser(STI, *Parser, MCII, MCOptions));
+
+ 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");
+ MCTargetOptions MCOptions = InitMCTargetOptionsFromFlags();
+ TripleName = Triple::normalize(TripleName);
+ setDwarfDebugFlags(argc, argv);
+
+ setDwarfDebugProducer();
+
+ const char *ProgName = argv[0];
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';
+ ErrorOr<std::unique_ptr<MemoryBuffer>> BufferPtr =
+ MemoryBuffer::getFileOrSTDIN(InputFilename);
+ if (std::error_code EC = BufferPtr.getError()) {
+ errs() << ProgName << ": " << EC.message() << '\n';
return 1;
}
- MemoryBuffer *Buffer = BufferPtr.take();
-
+ MemoryBuffer *Buffer = BufferPtr->get();
+
SourceMgr SrcMgr;
-
+
// Tell SrcMgr about this buffer, which is what the parser will pick up.
- SrcMgr.AddNewSourceBuffer(Buffer, SMLoc());
-
+ SrcMgr.AddNewSourceBuffer(std::move(*BufferPtr), 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));
+
+ std::unique_ptr<MCRegisterInfo> MRI(TheTarget->createMCRegInfo(TripleName));
+ assert(MRI && "Unable to create target register info!");
+
+ std::unique_ptr<MCAsmInfo> MAI(TheTarget->createMCAsmInfo(*MRI, 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).
- // 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 (CompressDebugSections) {
+ if (!zlib::isAvailable()) {
+ errs() << ProgName
+ << ": build tools with zlib to enable -compress-debug-sections";
+ return 1;
+ }
+ MAI->setCompressDebugSections(true);
+ }
- if (!TM) {
- errs() << ProgName << ": error: could not create target for triple '"
- << TripleName << "'.\n";
+ // FIXME: This is not pretty. MCContext has a ptr to MCObjectFileInfo and
+ // MCObjectFileInfo needs a MCContext reference in order to initialize itself.
+ MCObjectFileInfo MOFI;
+ MCContext Ctx(MAI.get(), MRI.get(), &MOFI, &SrcMgr);
+ MOFI.InitMCObjectFileInfo(TripleName, RelocModel, CMModel, Ctx);
+
+ if (SaveTempLabels)
+ Ctx.setAllowTemporaryLabels(false);
+
+ Ctx.setGenDwarfForAssembly(GenDwarfForAssembly);
+ // Default to 4 for dwarf version.
+ unsigned DwarfVersion = MCOptions.DwarfVersion ? MCOptions.DwarfVersion : 4;
+ if (DwarfVersion < 2 || DwarfVersion > 4) {
+ errs() << ProgName << ": Dwarf version " << DwarfVersion
+ << " is not supported." << '\n';
return 1;
}
+ Ctx.setDwarfVersion(DwarfVersion);
+ if (!DwarfDebugFlags.empty())
+ Ctx.setDwarfDebugFlags(StringRef(DwarfDebugFlags));
+ if (!DwarfDebugProducer.empty())
+ Ctx.setDwarfDebugProducer(StringRef(DwarfDebugProducer));
+ if (!DebugCompilationDir.empty())
+ Ctx.setCompilationDir(DebugCompilationDir);
+ if (!MainFileName.empty())
+ Ctx.setMainFileName(MainFileName);
- const TargetAsmInfo *tai = new TargetAsmInfo(*TM);
- MCContext Ctx(*MAI, tai);
+ // 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());
+ std::unique_ptr<tool_output_file> Out(GetOutputStream());
if (!Out)
return 1;
formatted_raw_ostream FOS(Out->os());
- OwningPtr<MCStreamer> Str;
+ std::unique_ptr<MCStreamer> Str;
- const TargetLoweringObjectFile &TLOF =
- TM->getTargetLowering()->getObjFileLowering();
- const_cast<TargetLoweringObjectFile&>(TLOF).Initialize(Ctx, *TM);
+ std::unique_ptr<MCInstrInfo> MCII(TheTarget->createMCInstrInfo());
+ std::unique_ptr<MCSubtargetInfo> STI(
+ TheTarget->createMCSubtargetInfo(TripleName, MCPU, FeaturesStr));
- // FIXME: There is a bit of code duplication with addPassesToEmitFile.
+ MCInstPrinter *IP = nullptr;
if (FileType == OFT_AssemblyFile) {
- MCInstPrinter *IP =
- TheTarget->createMCInstPrinter(OutputAsmVariant, *MAI);
- MCCodeEmitter *CE = 0;
- TargetAsmBackend *TAB = 0;
+ IP =
+ TheTarget->createMCInstPrinter(OutputAsmVariant, *MAI, *MCII, *MRI, *STI);
+
+ // Set the display preference for hex vs. decimal immediates.
+ IP->setPrintImmHex(PrintImmHex);
+
+ // Set up the AsmStreamer.
+ MCCodeEmitter *CE = nullptr;
+ MCAsmBackend *MAB = nullptr;
if (ShowEncoding) {
- CE = TheTarget->createCodeEmitter(*TM, Ctx);
- TAB = TheTarget->createAsmBackend(TripleName);
+ CE = TheTarget->createMCCodeEmitter(*MCII, *MRI, *STI, Ctx);
+ MAB = TheTarget->createMCAsmBackend(*MRI, TripleName, MCPU);
}
- Str.reset(TheTarget->createAsmStreamer(Ctx, FOS, /*asmverbose*/true,
- /*useLoc*/ true, IP, CE, TAB,
- ShowInst));
+ Str.reset(TheTarget->createAsmStreamer(Ctx, FOS, /*asmverbose*/ 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->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()));
- }
-
- OwningPtr<MCAsmParser> Parser(createMCAsmParser(*TheTarget, SrcMgr, Ctx,
- *Str.get(), *MAI));
- OwningPtr<TargetAsmParser> TAP(TheTarget->createAsmParser(*Parser, *TM));
- 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;
+ MCCodeEmitter *CE = TheTarget->createMCCodeEmitter(*MCII, *MRI, *STI, Ctx);
+ MCAsmBackend *MAB = TheTarget->createMCAsmBackend(*MRI, TripleName, MCPU);
+ Str.reset(TheTarget->createMCObjectStreamer(TripleName, Ctx, *MAB, FOS, CE,
+ *STI, RelaxAll));
+ if (NoExecStack)
+ Str->InitSections(true);
}
-
- 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::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,
+ *MCII, MCOptions);
+ break;
+ case AC_MDisassemble:
+ assert(IP && "Expected assembly output");
+ IP->setUseMarkup(1);
+ disassemble = true;
+ break;
case AC_Disassemble:
- return DisassembleInput(argv[0], false);
- case AC_EDisassemble:
- return DisassembleInput(argv[0], true);
+ disassemble = true;
+ break;
}
-
- return 0;
-}
+ if (disassemble)
+ Res = Disassembler::disassemble(*TheTarget, TripleName, *STI, *Str,
+ *Buffer, SrcMgr, Out->os());
+ // Keep output if no errors.
+ if (Res == 0) Out->keep();
+ return Res;
+}