//
//===----------------------------------------------------------------------===//
+#include "llvm/MC/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/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/Signals.h"
+#include "llvm/Target/TargetAsmParser.h"
#include "llvm/Target/TargetRegistry.h"
+#include "llvm/Target/TargetMachine.h" // FIXME.
#include "llvm/Target/TargetSelect.h"
#include "AsmParser.h"
using namespace llvm;
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<unsigned>
+OutputAsmVariant("output-asm-variant",
+ cl::desc("Syntax variant to use for output printing"));
+
+enum OutputFileType {
+ 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_ObjectFile, "obj",
+ "Emit a native object ('.o') file"),
+ clEnumValEnd));
+
+static cl::opt<bool>
+Force("f", cl::desc("Enable binary output on terminals"));
+
static cl::list<std::string>
IncludeDirs("I", cl::desc("Directory of include files"),
cl::value_desc("directory"), cl::Prefix);
"Assemble a .s file (default)"),
clEnumValEnd));
+static const Target *GetTarget(const char *ProgName) {
+ // 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,
// it later.
SrcMgr.setIncludeDirs(IncludeDirs);
- AsmLexer Lexer(SrcMgr);
+ const Target *TheTarget = GetTarget(ProgName);
+ if (!TheTarget)
+ return 1;
+
+ const MCAsmInfo *MAI = TheTarget->createAsmInfo(TripleName);
+ assert(MAI && "Unable to create target asm info!");
+
+ AsmLexer Lexer(SrcMgr, *MAI);
bool Error = false;
- AsmToken::TokenKind Tok = Lexer.Lex();
- while (Tok != AsmToken::Eof) {
- switch (Tok) {
+ while (Lexer.Lex().isNot(AsmToken::Eof)) {
+ switch (Lexer.getKind()) {
default:
Lexer.PrintMessage(Lexer.getLoc(), "unknown token", "warning");
Error = true;
case AsmToken::Identifier:
outs() << "identifier: " << Lexer.getTok().getString() << '\n';
break;
- case AsmToken::Register:
- outs() << "register: " << Lexer.getTok().getString() << '\n';
- break;
case AsmToken::String:
outs() << "string: " << Lexer.getTok().getString() << '\n';
break;
case AsmToken::Star: outs() << "Star\n"; break;
case AsmToken::Tilde: outs() << "Tilde\n"; break;
}
-
- Tok = Lexer.Lex();
}
return Error;
}
-static int AssembleInput(const char *ProgName) {
- // Get the target specific parser.
- std::string Error;
- const Target *TheTarget =
- TargetRegistry::lookupTarget(TripleName,
- /*FallbackToHost=*/true,
- /*RequireJIT=*/false,
- Error);
- if (TheTarget == 0) {
- errs() << ProgName << ": error: unable to get target for '" << TripleName
- << "', see --version and --triple.\n";
- return 1;
- }
+static formatted_raw_ostream *GetOutputStream() {
+ if (OutputFilename == "")
+ OutputFilename = "-";
- TargetAsmParser *TAP = TheTarget->createAsmParser();
- if (!TAP) {
- errs() << ProgName
- << ": error: this target does not support assembly parsing.\n";
- return 1;
+ // 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);
+}
- std::string ErrorMessage;
- MemoryBuffer *Buffer = MemoryBuffer::getFileOrSTDIN(InputFilename,
- &ErrorMessage);
+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 (ErrorMessage.size())
- errs() << ErrorMessage << "\n";
+ 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 TGParser will pick up.
+ // 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
SrcMgr.setIncludeDirs(IncludeDirs);
MCContext Ctx;
- OwningPtr<MCStreamer> Str(createAsmStreamer(Ctx, outs()));
+ 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<MCInstPrinter> IP;
+ OwningPtr<MCCodeEmitter> CE;
+ OwningPtr<MCStreamer> Str;
+
+ const MCAsmInfo *MAI = TheTarget->createAsmInfo(TripleName);
+ assert(MAI && "Unable to create target asm info!");
+
+ if (FileType == OFT_AssemblyFile) {
+ IP.reset(TheTarget->createMCInstPrinter(OutputAsmVariant, *MAI, *Out));
+ if (ShowEncoding)
+ CE.reset(TheTarget->createCodeEmitter(*TM));
+ Str.reset(createAsmStreamer(Ctx, *Out, *MAI, IP.get(), CE.get()));
+ } else {
+ assert(FileType == OFT_ObjectFile && "Invalid file type!");
+ CE.reset(TheTarget->createCodeEmitter(*TM));
+ Str.reset(createMachOStreamer(Ctx, *Out, CE.get()));
+ }
+
+ 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());
- // FIXME: Target hook & command line option for initial section.
- Str.get()->SwitchSection(Ctx.GetSection("__TEXT,__text,"
- "regular,pure_instructions"));
+ int Res = Parser.Run();
+ if (Out != &fouts())
+ delete Out;
- AsmParser Parser(SrcMgr, Ctx, *Str.get(), *TAP);
- return Parser.Run();
+ return Res;
}
PrettyStackTraceProgram X(argc, argv);
llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
- // Initialize targets and assembly parsers.
+ // 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();
cl::ParseCommandLineOptions(argc, argv, "llvm machine code playground\n");
projects / oota-llvm.git / blobdiff