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//===-- driver.cpp - Clang GCC-Compatible Driver --------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This is the entry point to the clang driver; it is a thin wrapper
// for functionality in the Driver clang library.
//
//===----------------------------------------------------------------------===//
#include "clang/Driver/Compilation.h"
#include "clang/Driver/Driver.h"
#include "clang/Driver/Option.h"
#include "clang/Driver/Options.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/OwningPtr.h"
#include "llvm/Config/config.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/PrettyStackTrace.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/System/Path.h"
#include "llvm/System/Signals.h"
using namespace clang;
using namespace clang::driver;
class DriverDiagnosticPrinter : public DiagnosticClient {
std::string ProgName;
llvm::raw_ostream &OS;
public:
DriverDiagnosticPrinter(const std::string _ProgName,
llvm::raw_ostream &_OS)
: ProgName(_ProgName),
OS(_OS) {}
virtual void HandleDiagnostic(Diagnostic::Level DiagLevel,
const DiagnosticInfo &Info);
};
void DriverDiagnosticPrinter::HandleDiagnostic(Diagnostic::Level Level,
const DiagnosticInfo &Info) {
OS << ProgName << ": ";
switch (Level) {
case Diagnostic::Ignored: assert(0 && "Invalid diagnostic type");
case Diagnostic::Note: OS << "note: "; break;
case Diagnostic::Warning: OS << "warning: "; break;
case Diagnostic::Error: OS << "error: "; break;
case Diagnostic::Fatal: OS << "fatal error: "; break;
}
llvm::SmallString<100> OutStr;
Info.FormatDiagnostic(OutStr);
OS.write(OutStr.begin(), OutStr.size());
OS << '\n';
}
int main(int argc, const char **argv) {
llvm::sys::PrintStackTraceOnErrorSignal();
llvm::PrettyStackTraceProgram X(argc, argv);
// FIXME: We should use GetMainExecutable here, probably, but we may
// want to handle symbolic links slightly differently. The problem
// is that the path derived from this will influence search paths.
llvm::sys::Path Path(argv[0]);
llvm::OwningPtr<DiagnosticClient>
DiagClient(new DriverDiagnosticPrinter(Path.getBasename(), llvm::errs()));
Diagnostic Diags(DiagClient.get());
// FIXME: Use the triple of the host, not the triple that we were
// compiled on.
llvm::OwningPtr<Driver> TheDriver(new Driver(Path.getBasename().c_str(),
Path.getDirname().c_str(),
LLVM_HOSTTRIPLE,
"a.out",
Diags));
llvm::OwningPtr<Compilation> C(TheDriver->BuildCompilation(argc, argv));
// If there were errors building the compilation, quit now.
if (Diags.getNumErrors())
return 1;
if (!C.get())
return 0;
int res = C->Execute();
llvm::llvm_shutdown();
return res;
}
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