563 lines
19 KiB
C++
563 lines
19 KiB
C++
//===-- 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.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This utility is a simple driver that allows command line hacking on machine
|
|
// code.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "Disassembler.h"
|
|
#include "llvm/MC/MCAsmBackend.h"
|
|
#include "llvm/MC/MCAsmInfo.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/MCTargetAsmParser.h"
|
|
#include "llvm/MC/MCRegisterInfo.h"
|
|
#include "llvm/MC/MCSectionMachO.h"
|
|
#include "llvm/MC/MCStreamer.h"
|
|
#include "llvm/MC/MCSubtargetInfo.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"
|
|
|
|
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> RelaxELFRel(
|
|
"relax-relocations", cl::init(true),
|
|
cl::desc("Emit R_X86_64_GOTPCRELX instead of R_X86_64_GOTPCREL"));
|
|
|
|
static cl::opt<DebugCompressionType>
|
|
CompressDebugSections("compress-debug-sections", cl::ValueOptional,
|
|
cl::init(DebugCompressionType::DCT_None),
|
|
cl::desc("Choose DWARF debug sections compression:"),
|
|
cl::values(
|
|
clEnumValN(DebugCompressionType::DCT_None, "none",
|
|
"No compression"),
|
|
clEnumValN(DebugCompressionType::DCT_Zlib, "zlib",
|
|
"Use zlib compression"),
|
|
clEnumValN(DebugCompressionType::DCT_ZlibGnu, "zlib-gnu",
|
|
"Use zlib-gnu compression (depricated)"),
|
|
clEnumValEnd));
|
|
|
|
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>
|
|
PrintImmHex("print-imm-hex", cl::init(false),
|
|
cl::desc("Prefer hex format for immediate values"));
|
|
|
|
static cl::list<std::string>
|
|
DefineSymbol("defsym", cl::desc("Defines a symbol to be an integer constant"));
|
|
|
|
static cl::opt<bool>
|
|
PreserveComments("preserve-comments",
|
|
cl::desc("Preserve Comments in outputted assembly"));
|
|
|
|
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<bool> PIC("position-independent",
|
|
cl::desc("Position independent"), cl::init(false));
|
|
|
|
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>
|
|
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_MDisassemble,
|
|
};
|
|
|
|
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_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::getDefaultTargetTriple();
|
|
Triple TheTriple(Triple::normalize(TripleName));
|
|
|
|
// Get the target specific parser.
|
|
std::string Error;
|
|
const Target *TheTarget = TargetRegistry::lookupTarget(ArchName, TheTriple,
|
|
Error);
|
|
if (!TheTarget) {
|
|
errs() << ProgName << ": " << Error;
|
|
return nullptr;
|
|
}
|
|
|
|
// Update the triple name and return the found target.
|
|
TripleName = TheTriple.getTriple();
|
|
return TheTarget;
|
|
}
|
|
|
|
static std::unique_ptr<tool_output_file> GetOutputStream() {
|
|
if (OutputFilename == "")
|
|
OutputFilename = "-";
|
|
|
|
std::error_code EC;
|
|
auto Out = llvm::make_unique<tool_output_file>(OutputFilename, EC,
|
|
sys::fs::F_None);
|
|
if (EC) {
|
|
errs() << EC.message() << '\n';
|
|
return nullptr;
|
|
}
|
|
|
|
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 std::string DwarfDebugProducer;
|
|
static void setDwarfDebugProducer() {
|
|
if(!getenv("DEBUG_PRODUCER"))
|
|
return;
|
|
DwarfDebugProducer += getenv("DEBUG_PRODUCER");
|
|
}
|
|
|
|
static int AsLexInput(SourceMgr &SrcMgr, MCAsmInfo &MAI,
|
|
raw_ostream &OS) {
|
|
|
|
AsmLexer Lexer(MAI);
|
|
Lexer.setBuffer(SrcMgr.getMemoryBuffer(SrcMgr.getMainFileID())->getBuffer());
|
|
|
|
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");
|
|
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;
|
|
}
|
|
|
|
// Print the token string.
|
|
OS << " (\"";
|
|
OS.write_escaped(Tok.getString());
|
|
OS << "\")\n";
|
|
}
|
|
|
|
return Error;
|
|
}
|
|
|
|
static int fillCommandLineSymbols(MCAsmParser &Parser){
|
|
for(auto &I: DefineSymbol){
|
|
auto Pair = StringRef(I).split('=');
|
|
if(Pair.second.empty()){
|
|
errs() << "error: defsym must be of the form: sym=value: " << I;
|
|
return 1;
|
|
}
|
|
int64_t Value;
|
|
if(Pair.second.getAsInteger(0, Value)){
|
|
errs() << "error: Value is not an integer: " << Pair.second;
|
|
return 1;
|
|
}
|
|
auto &Context = Parser.getContext();
|
|
auto Symbol = Context.getOrCreateSymbol(Pair.first);
|
|
Parser.getStreamer().EmitAssignment(Symbol,
|
|
MCConstantExpr::create(Value, Context));
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
int SymbolResult = fillCommandLineSymbols(*Parser);
|
|
if(SymbolResult)
|
|
return SymbolResult;
|
|
Parser->setShowParsedOperands(ShowInstOperands);
|
|
Parser->setTargetParser(*TAP);
|
|
|
|
int Res = Parser->Run(NoInitialTextSection);
|
|
|
|
return Res;
|
|
}
|
|
|
|
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.
|
|
|
|
// 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;
|
|
// Now that GetTarget() has (potentially) replaced TripleName, it's safe to
|
|
// construct the Triple object.
|
|
Triple TheTriple(TripleName);
|
|
|
|
ErrorOr<std::unique_ptr<MemoryBuffer>> BufferPtr =
|
|
MemoryBuffer::getFileOrSTDIN(InputFilename);
|
|
if (std::error_code EC = BufferPtr.getError()) {
|
|
errs() << InputFilename << ": " << EC.message() << '\n';
|
|
return 1;
|
|
}
|
|
MemoryBuffer *Buffer = BufferPtr->get();
|
|
|
|
SourceMgr SrcMgr;
|
|
|
|
// Tell SrcMgr about this buffer, which is what the parser will pick up.
|
|
SrcMgr.AddNewSourceBuffer(std::move(*BufferPtr), SMLoc());
|
|
|
|
// Record the location of the include directories so that the lexer can find
|
|
// it later.
|
|
SrcMgr.setIncludeDirs(IncludeDirs);
|
|
|
|
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!");
|
|
|
|
MAI->setRelaxELFRelocations(RelaxELFRel);
|
|
|
|
if (CompressDebugSections != DebugCompressionType::DCT_None) {
|
|
if (!zlib::isAvailable()) {
|
|
errs() << ProgName
|
|
<< ": build tools with zlib to enable -compress-debug-sections";
|
|
return 1;
|
|
}
|
|
MAI->setCompressDebugSections(CompressDebugSections);
|
|
}
|
|
MAI->setPreserveAsmComments(PreserveComments);
|
|
|
|
// 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(TheTriple, PIC, 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);
|
|
else {
|
|
// If no compilation dir is set, try to use the current directory.
|
|
SmallString<128> CWD;
|
|
if (!sys::fs::current_path(CWD))
|
|
Ctx.setCompilationDir(CWD);
|
|
}
|
|
if (!MainFileName.empty())
|
|
Ctx.setMainFileName(MainFileName);
|
|
|
|
// 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();
|
|
}
|
|
|
|
std::unique_ptr<tool_output_file> Out = GetOutputStream();
|
|
if (!Out)
|
|
return 1;
|
|
|
|
std::unique_ptr<buffer_ostream> BOS;
|
|
raw_pwrite_stream *OS = &Out->os();
|
|
std::unique_ptr<MCStreamer> Str;
|
|
|
|
std::unique_ptr<MCInstrInfo> MCII(TheTarget->createMCInstrInfo());
|
|
std::unique_ptr<MCSubtargetInfo> STI(
|
|
TheTarget->createMCSubtargetInfo(TripleName, MCPU, FeaturesStr));
|
|
|
|
MCInstPrinter *IP = nullptr;
|
|
if (FileType == OFT_AssemblyFile) {
|
|
IP = TheTarget->createMCInstPrinter(Triple(TripleName), OutputAsmVariant,
|
|
*MAI, *MCII, *MRI);
|
|
|
|
// 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->createMCCodeEmitter(*MCII, *MRI, Ctx);
|
|
MAB = TheTarget->createMCAsmBackend(*MRI, TripleName, MCPU);
|
|
}
|
|
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));
|
|
|
|
} else if (FileType == OFT_Null) {
|
|
Str.reset(TheTarget->createNullStreamer(Ctx));
|
|
} else {
|
|
assert(FileType == OFT_ObjectFile && "Invalid file type!");
|
|
|
|
// Don't waste memory on names of temp labels.
|
|
Ctx.setUseNamesOnTempLabels(false);
|
|
|
|
if (!Out->os().supportsSeeking()) {
|
|
BOS = make_unique<buffer_ostream>(Out->os());
|
|
OS = BOS.get();
|
|
}
|
|
|
|
MCCodeEmitter *CE = TheTarget->createMCCodeEmitter(*MCII, *MRI, Ctx);
|
|
MCAsmBackend *MAB = TheTarget->createMCAsmBackend(*MRI, TripleName, MCPU);
|
|
Str.reset(TheTarget->createMCObjectStreamer(
|
|
TheTriple, Ctx, *MAB, *OS, CE, *STI, MCOptions.MCRelaxAll,
|
|
MCOptions.MCIncrementalLinkerCompatible,
|
|
/*DWARFMustBeAtTheEnd*/ false));
|
|
if (NoExecStack)
|
|
Str->InitSections(true);
|
|
}
|
|
|
|
int Res = 1;
|
|
bool disassemble = false;
|
|
switch (Action) {
|
|
case AC_AsLex:
|
|
Res = AsLexInput(SrcMgr, *MAI, Out->os());
|
|
break;
|
|
case AC_Assemble:
|
|
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:
|
|
disassemble = true;
|
|
break;
|
|
}
|
|
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;
|
|
}
|