//===-- llvm-mc.cpp - Machine Code Hacking Driver ---------------*- C++ -*-===//
//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
#include "llvm/MC/MCInstPrinter.h"
#include "llvm/MC/MCInstrInfo.h"
#include "llvm/MC/MCObjectFileInfo.h"
+#include "llvm/MC/MCObjectWriter.h"
#include "llvm/MC/MCParser/AsmLexer.h"
#include "llvm/MC/MCParser/MCTargetAsmParser.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSubtargetInfo.h"
-#include "llvm/MC/MCTargetOptionsCommandFlags.def"
+#include "llvm/MC/MCTargetOptionsCommandFlags.inc"
#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/InitLLVM.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/WithColor.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<std::string> OutputFilename("o", cl::desc("Output filename"),
+ cl::value_desc("filename"),
+ cl::init("-"));
+
+static cl::opt<std::string> SplitDwarfFile("split-dwarf-file",
+ cl::desc("DWO output filename"),
+ cl::value_desc("filename"));
static cl::opt<bool>
ShowEncoding("show-encoding", cl::desc("Show instruction encodings"));
DebugCompilationDir("fdebug-compilation-dir",
cl::desc("Specifies the debug info's compilation dir"));
+static cl::list<std::string>
+DebugPrefixMap("fdebug-prefix-map",
+ cl::desc("Map file source paths in debug info"),
+ cl::value_desc("= separated key-value pairs"));
+
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> LexMasmIntegers(
+ "masm-integers",
+ cl::desc("Enable binary and hex masm integers (0b110 and 0ABCh)"));
+
static cl::opt<bool> NoExecStack("no-exec-stack",
cl::desc("File doesn't need an exec stack"));
const Target *TheTarget = TargetRegistry::lookupTarget(ArchName, TheTriple,
Error);
if (!TheTarget) {
- errs() << ProgName << ": " << Error;
+ WithColor::error(errs(), ProgName) << Error;
return nullptr;
}
return TheTarget;
}
-static std::unique_ptr<ToolOutputFile> GetOutputStream() {
- if (OutputFilename == "")
- OutputFilename = "-";
-
+static std::unique_ptr<ToolOutputFile> GetOutputStream(StringRef Path) {
std::error_code EC;
- auto Out =
- llvm::make_unique<ToolOutputFile>(OutputFilename, EC, sys::fs::F_None);
+ auto Out = llvm::make_unique<ToolOutputFile>(Path, EC, sys::fs::F_None);
if (EC) {
- errs() << EC.message() << '\n';
+ WithColor::error() << EC.message() << '\n';
return nullptr;
}
bool Error = false;
while (Lexer.Lex().isNot(AsmToken::Eof)) {
- const AsmToken &Tok = Lexer.getTok();
-
- switch (Tok.getKind()) {
- default:
- SrcMgr.PrintMessage(Lexer.getLoc(), SourceMgr::DK_Warning,
- "unknown token");
+ Lexer.getTok().dump(OS);
+ OS << "\n";
+ if (Lexer.getTok().getKind() == AsmToken::Error)
Error = true;
- break;
- case AsmToken::Error:
- Error = true; // error already printed.
- break;
- case AsmToken::Identifier:
- OS << "identifier: " << Lexer.getTok().getString();
- break;
- case AsmToken::Integer:
- OS << "int: " << Lexer.getTok().getString();
- break;
- case AsmToken::Real:
- OS << "real: " << Lexer.getTok().getString();
- break;
- case AsmToken::String:
- OS << "string: " << Lexer.getTok().getString();
- break;
-
- case AsmToken::Amp: OS << "Amp"; break;
- case AsmToken::AmpAmp: OS << "AmpAmp"; break;
- case AsmToken::At: OS << "At"; break;
- case AsmToken::Caret: OS << "Caret"; break;
- case AsmToken::Colon: OS << "Colon"; break;
- case AsmToken::Comma: OS << "Comma"; break;
- case AsmToken::Dollar: OS << "Dollar"; break;
- case AsmToken::Dot: OS << "Dot"; break;
- case AsmToken::EndOfStatement: OS << "EndOfStatement"; break;
- case AsmToken::Eof: OS << "Eof"; break;
- case AsmToken::Equal: OS << "Equal"; break;
- case AsmToken::EqualEqual: OS << "EqualEqual"; break;
- case AsmToken::Exclaim: OS << "Exclaim"; break;
- case AsmToken::ExclaimEqual: OS << "ExclaimEqual"; break;
- case AsmToken::Greater: OS << "Greater"; break;
- case AsmToken::GreaterEqual: OS << "GreaterEqual"; break;
- case AsmToken::GreaterGreater: OS << "GreaterGreater"; break;
- case AsmToken::Hash: OS << "Hash"; break;
- case AsmToken::LBrac: OS << "LBrac"; break;
- case AsmToken::LCurly: OS << "LCurly"; break;
- case AsmToken::LParen: OS << "LParen"; break;
- case AsmToken::Less: OS << "Less"; break;
- case AsmToken::LessEqual: OS << "LessEqual"; break;
- case AsmToken::LessGreater: OS << "LessGreater"; break;
- case AsmToken::LessLess: OS << "LessLess"; break;
- case AsmToken::Minus: OS << "Minus"; break;
- case AsmToken::Percent: OS << "Percent"; break;
- case AsmToken::Pipe: OS << "Pipe"; break;
- case AsmToken::PipePipe: OS << "PipePipe"; break;
- case AsmToken::Plus: OS << "Plus"; break;
- case AsmToken::RBrac: OS << "RBrac"; break;
- case AsmToken::RCurly: OS << "RCurly"; break;
- case AsmToken::RParen: OS << "RParen"; break;
- case AsmToken::Slash: OS << "Slash"; break;
- case AsmToken::Star: OS << "Star"; break;
- case AsmToken::Tilde: OS << "Tilde"; break;
- case AsmToken::PercentCall16:
- OS << "PercentCall16";
- break;
- case AsmToken::PercentCall_Hi:
- OS << "PercentCall_Hi";
- break;
- case AsmToken::PercentCall_Lo:
- OS << "PercentCall_Lo";
- break;
- case AsmToken::PercentDtprel_Hi:
- OS << "PercentDtprel_Hi";
- break;
- case AsmToken::PercentDtprel_Lo:
- OS << "PercentDtprel_Lo";
- break;
- case AsmToken::PercentGot:
- OS << "PercentGot";
- break;
- case AsmToken::PercentGot_Disp:
- OS << "PercentGot_Disp";
- break;
- case AsmToken::PercentGot_Hi:
- OS << "PercentGot_Hi";
- break;
- case AsmToken::PercentGot_Lo:
- OS << "PercentGot_Lo";
- break;
- case AsmToken::PercentGot_Ofst:
- OS << "PercentGot_Ofst";
- break;
- case AsmToken::PercentGot_Page:
- OS << "PercentGot_Page";
- break;
- case AsmToken::PercentGottprel:
- OS << "PercentGottprel";
- break;
- case AsmToken::PercentGp_Rel:
- OS << "PercentGp_Rel";
- break;
- case AsmToken::PercentHi:
- OS << "PercentHi";
- break;
- case AsmToken::PercentHigher:
- OS << "PercentHigher";
- break;
- case AsmToken::PercentHighest:
- OS << "PercentHighest";
- break;
- case AsmToken::PercentLo:
- OS << "PercentLo";
- break;
- case AsmToken::PercentNeg:
- OS << "PercentNeg";
- break;
- case AsmToken::PercentPcrel_Hi:
- OS << "PercentPcrel_Hi";
- break;
- case AsmToken::PercentPcrel_Lo:
- OS << "PercentPcrel_Lo";
- break;
- case AsmToken::PercentTlsgd:
- OS << "PercentTlsgd";
- break;
- case AsmToken::PercentTlsldm:
- OS << "PercentTlsldm";
- break;
- case AsmToken::PercentTprel_Hi:
- OS << "PercentTprel_Hi";
- break;
- case AsmToken::PercentTprel_Lo:
- OS << "PercentTprel_Lo";
- break;
- }
-
- // Print the token string.
- OS << " (\"";
- OS.write_escaped(Tok.getString());
- OS << "\")\n";
}
return Error;
auto Val = Pair.second;
if (Sym.empty() || Val.empty()) {
- errs() << "error: defsym must be of the form: sym=value: " << I << "\n";
+ WithColor::error() << "defsym must be of the form: sym=value: " << I
+ << "\n";
return 1;
}
int64_t Value;
if (Val.getAsInteger(0, Value)) {
- errs() << "error: Value is not an integer: " << Val << "\n";
+ WithColor::error() << "value is not an integer: " << Val << "\n";
return 1;
}
Parser.getContext().setSymbolValue(Parser.getStreamer(), Sym, Value);
TheTarget->createMCAsmParser(STI, *Parser, MCII, MCOptions));
if (!TAP) {
- errs() << ProgName
- << ": error: this target does not support assembly parsing.\n";
+ WithColor::error(errs(), ProgName)
+ << "this target does not support assembly parsing.\n";
return 1;
}
return SymbolResult;
Parser->setShowParsedOperands(ShowInstOperands);
Parser->setTargetParser(*TAP);
+ Parser->getLexer().setLexMasmIntegers(LexMasmIntegers);
int Res = Parser->Run(NoInitialTextSection);
}
int main(int argc, char **argv) {
- // Print a stack trace if we signal out.
- sys::PrintStackTraceOnErrorSignal(argv[0]);
- PrettyStackTraceProgram X(argc, argv);
- llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
+ InitLLVM X(argc, argv);
// Initialize targets and assembly printers/parsers.
llvm::InitializeAllTargetInfos();
cl::ParseCommandLineOptions(argc, argv, "llvm machine code playground\n");
MCTargetOptions MCOptions = InitMCTargetOptionsFromFlags();
- TripleName = Triple::normalize(TripleName);
setDwarfDebugFlags(argc, argv);
setDwarfDebugProducer();
ErrorOr<std::unique_ptr<MemoryBuffer>> BufferPtr =
MemoryBuffer::getFileOrSTDIN(InputFilename);
if (std::error_code EC = BufferPtr.getError()) {
- errs() << InputFilename << ": " << EC.message() << '\n';
+ WithColor::error(errs(), ProgName)
+ << InputFilename << ": " << EC.message() << '\n';
return 1;
}
MemoryBuffer *Buffer = BufferPtr->get();
if (CompressDebugSections != DebugCompressionType::None) {
if (!zlib::isAvailable()) {
- errs() << ProgName
- << ": build tools with zlib to enable -compress-debug-sections";
+ WithColor::error(errs(), ProgName)
+ << "build tools with zlib to enable -compress-debug-sections";
return 1;
}
MAI->setCompressDebugSections(CompressDebugSections);
if (!sys::fs::current_path(CWD))
Ctx.setCompilationDir(CWD);
}
+ for (const auto &Arg : DebugPrefixMap) {
+ const auto &KV = StringRef(Arg).split('=');
+ Ctx.addDebugPrefixMapEntry(KV.first, KV.second);
+ }
if (!MainFileName.empty())
Ctx.setMainFileName(MainFileName);
+ if (GenDwarfForAssembly)
+ Ctx.setGenDwarfRootFile(InputFilename, Buffer->getBuffer());
// Package up features to be passed to target/subtarget
std::string FeaturesStr;
FeaturesStr = Features.getString();
}
- std::unique_ptr<ToolOutputFile> Out = GetOutputStream();
+ std::unique_ptr<ToolOutputFile> Out = GetOutputStream(OutputFilename);
if (!Out)
return 1;
+ std::unique_ptr<ToolOutputFile> DwoOut;
+ if (!SplitDwarfFile.empty()) {
+ if (FileType != OFT_ObjectFile) {
+ WithColor::error() << "dwo output only supported with object files\n";
+ return 1;
+ }
+ DwoOut = GetOutputStream(SplitDwarfFile);
+ if (!DwoOut)
+ return 1;
+ }
+
std::unique_ptr<buffer_ostream> BOS;
raw_pwrite_stream *OS = &Out->os();
std::unique_ptr<MCStreamer> Str;
*MAI, *MCII, *MRI);
if (!IP) {
- errs()
- << "error: unable to create instruction printer for target triple '"
+ WithColor::error()
+ << "unable to create instruction printer for target triple '"
<< TheTriple.normalize() << "' with assembly variant "
<< OutputAsmVariant << ".\n";
return 1;
IP->setPrintImmHex(PrintImmHex);
// Set up the AsmStreamer.
- MCCodeEmitter *CE = nullptr;
- MCAsmBackend *MAB = nullptr;
- if (ShowEncoding) {
- CE = TheTarget->createMCCodeEmitter(*MCII, *MRI, Ctx);
- MAB = TheTarget->createMCAsmBackend(*STI, *MRI, MCOptions);
- }
+ std::unique_ptr<MCCodeEmitter> CE;
+ if (ShowEncoding)
+ CE.reset(TheTarget->createMCCodeEmitter(*MCII, *MRI, Ctx));
+
+ std::unique_ptr<MCAsmBackend> MAB(
+ TheTarget->createMCAsmBackend(*STI, *MRI, MCOptions));
auto FOut = llvm::make_unique<formatted_raw_ostream>(*OS);
- Str.reset(TheTarget->createAsmStreamer(
- Ctx, std::move(FOut), /*asmverbose*/ true,
- /*useDwarfDirectory*/ true, IP, CE, MAB, ShowInst));
+ Str.reset(
+ TheTarget->createAsmStreamer(Ctx, std::move(FOut), /*asmverbose*/ true,
+ /*useDwarfDirectory*/ true, IP,
+ std::move(CE), std::move(MAB), ShowInst));
} else if (FileType == OFT_Null) {
Str.reset(TheTarget->createNullStreamer(Ctx));
MCCodeEmitter *CE = TheTarget->createMCCodeEmitter(*MCII, *MRI, Ctx);
MCAsmBackend *MAB = TheTarget->createMCAsmBackend(*STI, *MRI, MCOptions);
Str.reset(TheTarget->createMCObjectStreamer(
- TheTriple, Ctx, std::unique_ptr<MCAsmBackend>(MAB), *OS,
+ TheTriple, Ctx, std::unique_ptr<MCAsmBackend>(MAB),
+ DwoOut ? MAB->createDwoObjectWriter(*OS, DwoOut->os())
+ : MAB->createObjectWriter(*OS),
std::unique_ptr<MCCodeEmitter>(CE), *STI, MCOptions.MCRelaxAll,
MCOptions.MCIncrementalLinkerCompatible,
/*DWARFMustBeAtTheEnd*/ false));
Str->InitSections(true);
}
+ // Use Assembler information for parsing.
+ Str->setUseAssemblerInfoForParsing(true);
+
int Res = 1;
bool disassemble = false;
switch (Action) {
*Buffer, SrcMgr, Out->os());
// Keep output if no errors.
- if (Res == 0) Out->keep();
+ if (Res == 0) {
+ Out->keep();
+ if (DwoOut)
+ DwoOut->keep();
+ }
return Res;
}
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