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//===- InitLLVM.h -----------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_SUPPORT_LLVM_H
#define LLVM_SUPPORT_LLVM_H
#include "llvm/ADT/SmallVector.h"
#include "llvm/Support/Allocator.h"
#include "llvm/Support/PrettyStackTrace.h"
// The main() functions in typical LLVM tools start with InitLLVM which does
// the following one-time initializations:
//
// 1. Setting up a signal handler so that pretty stack trace is printed out
// if a process crashes.
//
// 2. If running on Windows, obtain command line arguments using a
// multibyte character-aware API and convert arguments into UTF-8
// encoding, so that you can assume that command line arguments are
// always encoded in UTF-8 on any platform.
//
// InitLLVM calls llvm_shutdown() on destruction, which cleans up
// ManagedStatic objects.
namespace llvm {
class InitLLVM {
public:
InitLLVM(int &Argc, const char **&Argv);
InitLLVM(int &Argc, char **&Argv)
: InitLLVM(Argc, const_cast<const char **&>(Argv)) {}
~InitLLVM();
private:
BumpPtrAllocator Alloc;
SmallVector<const char *, 0> Args;
PrettyStackTraceProgram StackPrinter;
};
} // namespace llvm
#endif
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