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); InitLLVM(int & Argc,char ** & Argv)34 InitLLVM(int &Argc, char **&Argv) 35 : 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 47