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       1             : //===- InitLLVM.h -----------------------------------------------*- C++ -*-===//
       2             : //
       3             : //                     The LLVM Compiler Infrastructure
       4             : //
       5             : // This file is distributed under the University of Illinois Open Source
       6             : // License. See LICENSE.TXT for details.
       7             : //
       8             : //===----------------------------------------------------------------------===//
       9             : 
      10             : #ifndef LLVM_SUPPORT_LLVM_H
      11             : #define LLVM_SUPPORT_LLVM_H
      12             : 
      13             : #include "llvm/ADT/SmallVector.h"
      14             : #include "llvm/Support/Allocator.h"
      15             : #include "llvm/Support/PrettyStackTrace.h"
      16             : 
      17             : // The main() functions in typical LLVM tools start with InitLLVM which does
      18             : // the following one-time initializations:
      19             : //
      20             : //  1. Setting up a signal handler so that pretty stack trace is printed out
      21             : //     if a process crashes.
      22             : //
      23             : //  2. If running on Windows, obtain command line arguments using a
      24             : //     multibyte character-aware API and convert arguments into UTF-8
      25             : //     encoding, so that you can assume that command line arguments are
      26             : //     always encoded in UTF-8 on any platform.
      27             : //
      28             : // InitLLVM calls llvm_shutdown() on destruction, which cleans up
      29             : // ManagedStatic objects.
      30             : namespace llvm {
      31             : class InitLLVM {
      32             : public:
      33             :   InitLLVM(int &Argc, const char **&Argv);
      34             :   InitLLVM(int &Argc, char **&Argv)
      35      110445 :       : InitLLVM(Argc, const_cast<const char **&>(Argv)) {}
      36             : 
      37             :   ~InitLLVM();
      38             : 
      39             : private:
      40             :   BumpPtrAllocator Alloc;
      41             :   SmallVector<const char *, 0> Args;
      42             :   PrettyStackTraceProgram StackPrinter;
      43             : };
      44             : } // namespace llvm
      45             : 
      46             : #endif