1 //===-- InitLLVM.cpp -----------------------------------------------------===// 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 #include "llvm/Support/InitLLVM.h" 11 #include "llvm/Support/Error.h" 12 #include "llvm/Support/ManagedStatic.h" 13 #include "llvm/Support/PrettyStackTrace.h" 14 #include "llvm/Support/Process.h" 15 #include "llvm/Support/Signals.h" 16 #include <string> 17 18 #ifdef _WIN32 19 #include "Windows/WindowsSupport.h" 20 #endif 21 22 using namespace llvm; 23 using namespace llvm::sys; 24 25 InitLLVM::InitLLVM(int &Argc, const char **&Argv) : StackPrinter(Argc, Argv) { 26 sys::PrintStackTraceOnErrorSignal(Argv[0]); 27 28 #ifdef _WIN32 29 // We use UTF-8 as the internal character encoding. On Windows, 30 // arguments passed to main() may not be encoded in UTF-8. In order 31 // to reliably detect encoding of command line arguments, we use an 32 // Windows API to obtain arguments, convert them to UTF-8, and then 33 // write them back to the Argv vector. 34 // 35 // There's probably other way to do the same thing (e.g. using 36 // wmain() instead of main()), but this way seems less intrusive 37 // than that. 38 std::string Banner = std::string(Argv[0]) + ": "; 39 ExitOnError ExitOnErr(Banner); 40 41 ExitOnErr(errorCodeToError(windows::GetCommandLineArguments(Args, Alloc))); 42 43 // GetCommandLineArguments doesn't terminate the vector with a 44 // nullptr. Do it to make it compatible with the real argv. 45 Args.push_back(nullptr); 46 47 Argc = Args.size() - 1; 48 Argv = Args.data(); 49 #endif 50 } 51 52 InitLLVM::~InitLLVM() { llvm_shutdown(); } 53
