#include

#include #include "fg_os.hxx" #if defined(SG_MAC) #include // for transformToForegroundApp #endif #if defined(HAVE_CRASHRPT) #include #endif std::string homedir; std::string hostname; // forward declaration. void fgExitCleanup(); static bool fpeAbort = false; static void initFPE(); #if defined(HAVE_FEENABLEEXCEPT) static void handleFPE(int); static void initFPE () { if (fpeAbort) { int except = fegetexcept(); feenableexcept(except | FE_DIVBYZERO | FE_INVALID); } else { signal(SIGFPE, handleFPE); } } static void handleFPE(int) { feclearexcept(FE_ALL_EXCEPT); signal(SIGFPE, handleFPE); } #elif defined(__linux__) && defined(__i386__) static void handleFPE(int); static void initFPE () { fpu_control_t fpe_flags = 0; _FPU_GETCW(fpe_flags); // fpe_flags &= ~_FPU_MASK_IM; // invalid operation // fpe_flags &= ~_FPU_MASK_DM; // denormalized operand // fpe_flags &= ~_FPU_MASK_ZM; // zero-divide // fpe_flags &= ~_FPU_MASK_OM; // overflow // fpe_flags &= ~_FPU_MASK_UM; // underflow // fpe_flags &= ~_FPU_MASK_PM; // precision (inexact result) _FPU_SETCW(fpe_flags); signal(SIGFPE, handleFPE); } static void handleFPE (int num) { initFPE(); SG_LOG(SG_GENERAL, SG_ALERT, "Floating point interrupt (SIGFPE)"); } #else static void initFPE() { } #endif #if defined(SG_WINDOWS) int main ( int argc, char **argv ); int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) { main( __argc, __argv ); } #endif static void fg_terminate() { cerr << endl << "Uncaught Exception: missing exception handler on some thread" << endl << endl; abort(); } int _bootstrap_OSInit; // Main entry point; catch any exceptions that have made it this far. int main ( int argc, char **argv ) { #if defined(SG_WINDOWS) // Don't show blocking "no disk in drive" error messages on Windows 7, // silently return errors to application instead. // See Microsoft MSDN #ms680621: "GUI apps should specify SEM_NOOPENFILEERRORBOX" SetErrorMode(SEM_NOOPENFILEERRORBOX); hostname = ::getenv( "COMPUTERNAME" ); #else // Unix(alike) systems char _hostname[256]; gethostname(_hostname, 256); hostname = _hostname; signal(SIGPIPE, SIG_IGN); #endif #if defined(SG_MAC) // required so native messages boxes work prior to osgViewer init // (only needed when not running as a bundled app) transformToForegroundApp(); #endif #ifdef PTW32_STATIC_LIB // Initialise static pthread win32 lib pthread_win32_process_attach_np (); #endif _bootstrap_OSInit = 0; #if defined(HAVE_CRASHRPT) // Define CrashRpt configuration parameters CR_INSTALL_INFO info; memset(&info, 0, sizeof(CR_INSTALL_INFO)); info.cb = sizeof(CR_INSTALL_INFO); info.pszAppName = "FlightGear"; info.pszAppVersion = FLIGHTGEAR_VERSION; info.pszEmailSubject = "FlightGear " FLIGHTGEAR_VERSION " crash report"; info.pszEmailTo = "fgcrash@goneabitbursar.com"; info.pszUrl = "http://fgfs.goneabitbursar.com/crashreporter/crashrpt.php"; info.uPriorities[CR_HTTP] = 3; info.uPriorities[CR_SMTP] = 2; info.uPriorities[CR_SMAPI] = 1; // Install all available exception handlers info.dwFlags |= CR_INST_ALL_POSSIBLE_HANDLERS; // Restart the app on crash info.dwFlags |= CR_INST_SEND_QUEUED_REPORTS; // autoamticallty install handlers for all threads info.dwFlags |= CR_INST_AUTO_THREAD_HANDLERS; // Define the Privacy Policy URL info.pszPrivacyPolicyURL = "http://flightgear.org/crash-privacypolicy.html"; // Install crash reporting int nResult = crInstall(&info); if(nResult!=0) { std::cerr << "failed to install crash reporting engine" << std::endl; } else { crAddProperty("hudson-build-id", HUDSON_BUILD_ID); } #endif #if defined(__FreeBSD__) // Ignore floating-point exceptions on FreeBSD signal(SIGFPE, SIG_IGN); #else // Maybe Enable floating-point exceptions on Linux for (int i = 0; i < argc; ++i) { if (!strcmp("--enable-fpe", argv[i])) { fpeAbort = true; break; } } initFPE(); #endif // Enable floating-point exceptions for Windows #if defined( _MSC_VER ) && defined( DEBUG ) // Christian, we should document what this does _control87( _EM_INEXACT, _MCW_EM ); #endif bool fgviewer = false; for (int i = 0; i < argc; ++i) { if (!strcmp("--fgviewer", argv[i])) { fgviewer = true; break; } } // FIXME: add other, more specific // exceptions. try { // http://code.google.com/p/flightgear-bugs/issues/detail?id=1231 // ensure sglog is inited before atexit() is registered, so logging // is possible inside fgExitCleanup sglog(); // similar to above, ensure some static maps inside OSG exist before // we register our at-exit handler, otherwise the statics are gone // when fg_terminate runs, which causes crashes. osg::Texture::getTextureObjectManager(0); osg::GLBufferObjectManager::getGLBufferObjectManager(0); std::set_terminate(fg_terminate); atexit(fgExitCleanup); if (fgviewer) fgviewerMain(argc, argv); else fgMainInit(argc, argv); } catch (const sg_throwable &t) { std::string info; if (std::strlen(t.getOrigin()) != 0) info = std::string("received from ") + t.getOrigin(); flightgear::fatalMessageBox("Fatal exception", t.getFormattedMessage(), info); } catch (const std::exception &e ) { flightgear::fatalMessageBox("Fatal exception", e.what()); } catch (const std::string &s) { flightgear::fatalMessageBox("Fatal exception", s); } catch (const char *s) { cerr << "Fatal error (const char*): " << s << endl; } catch (...) { cerr << "Unknown exception in the main loop. Aborting..." << endl; if (errno) perror("Possible cause"); } #if defined(HAVE_CRASHRPT) crUninstall(); #endif return 0; } // do some clean up on exit. Specifically we want to delete the sound-manager, // so OpenAL device and context are released cleanly void fgExitCleanup() { if (_bootstrap_OSInit != 0) { fgSetMouseCursor(MOUSE_CURSOR_POINTER); fgOSCloseWindow(); } // on the common exit path globals is already deleted, and NULL, // so this only happens on error paths. delete globals; }