NativeLauncher/launcher/lib/core_runtime.cc

   1 /*
   2  * Copyright (c) 2016 Samsung Electronics Co., Ltd All Rights Reserved
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the License);
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an AS IS BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17
  18 #include <dlfcn.h>
  19 #include <signal.h>
  20 #include <dirent.h>
  21
  22 #include <string>
  23 #include <fstream>
  24 #include <vector>
  25 #include <sstream>
  26
  27 #include <locale>
  28 #include <codecvt>
  29
  30 #include <fcntl.h>
  31 #include <sys/stat.h>
  32 #include <sys/types.h>
  33 #include <sys/wait.h>
  34 #include <unistd.h>
  35 #include <linux/limits.h>
  36
  37 #include <storage.h>
  38 #include <vconf.h>
  39 #include <app_common.h>
  40
  41 #include <Ecore.h>
  42
  43 #include "injection.h"
  44 #include "utils.h"
  45 #include "log.h"
  46 #include "core_runtime.h"
  47 #include "plugin_manager.h"
  48 #include "path_manager.h"
  49
  50 namespace tizen {
  51 namespace runtime {
  52 namespace dotnetcore {
  53
  54 static coreclr_initialize_ptr initializeClr = nullptr;
  55 static coreclr_execute_assembly_ptr executeAssembly = nullptr;
  56 static coreclr_shutdown_ptr shutdown = nullptr;
  57 static coreclr_create_delegate_ptr createDelegate = nullptr;
  58 static set_environment_variable_ptr setEnvironmentVariable = nullptr;
  59 static stop_profile_after_delay_ptr stopProfileAfterDelay = nullptr;
  60 static set_switch_ptr setSwitch = nullptr;
  61 static void* __coreclrLib = nullptr;
  62 static void* __hostHandle = nullptr;
  63 static unsigned int __domainId = -1;
  64 static bool __initialized = false;
  65 static bool __isProfileMode = false;
  66 PathManager* CoreRuntime::__pm = nullptr;
  67
  68 #define MAX_DELAY_SEC 100
  69
  70 static std::vector<std::string> __envList;
  71
  72 static void setEnvFromFile()
  73 {
  74         std::string envList;
  75         std::ifstream inFile(ENV_FILE_PATH);
  76
  77         __envList.clear();
  78
  79         if (inFile) {
  80                 _INFO("coreclr_env.list is found");
  81
  82                 std::string token;
  83                 while (std::getline(inFile, token, '\n')) {
  84                         if (!token.empty()) {
  85                                 __envList.push_back(token);
  86                         }
  87                 }
  88
  89                 for (unsigned int i = 0; i < __envList.size(); i++) {
  90                         putenv(const_cast<char *>(__envList[i].c_str()));
  91                 }
  92         } else {
  93                 _INFO("coreclr_env.list file is not found. skip");
  94         }
  95 }
  96
  97 #define _unused(x) ((void)(x))
  98
  99 struct sigaction sig_abrt_new;
 100 struct sigaction sig_abrt_old;
 101
 102 static bool checkOnSigabrt = false;
 103 static bool checkOnTerminate = false;
 104
 105 static void onSigabrt(int signum)
 106 {
 107         // use unused variable to avoid build warning
 108         ssize_t ret = write(STDERR_FILENO, "onSigabrt called\n", 17);
 109
 110         if (checkOnTerminate) {
 111                 ret = write(STDERR_FILENO, "onSigabrt called while terminate. go to exit\n", 45);
 112                 _unused(ret);
 113                 exit(0);
 114         }
 115
 116         if (checkOnSigabrt) {
 117                 ret = write(STDERR_FILENO, "onSigabrt called again. go to exit\n", 35);
 118                 _unused(ret);
 119                 exit(0);
 120         }
 121
 122         checkOnSigabrt = true;
 123         if (sigaction(SIGABRT, &sig_abrt_old, NULL) == 0) {
 124                 if (raise(signum) < 0) {
 125                         ret = write(STDERR_FILENO, "Fail to raise SIGABRT\n", 22);
 126                 }
 127         } else {
 128                 ret = write(STDERR_FILENO, "Fail to set original SIGABRT handler\n", 37);
 129         }
 130         _unused(ret);
 131 }
 132
 133 static void registerSigHandler()
 134 {
 135         sig_abrt_new.sa_handler = onSigabrt;
 136         if (sigemptyset(&sig_abrt_new.sa_mask) != 0) {
 137                 _ERR("Fail to sigemptyset");
 138         }
 139
 140         if (sigaction(SIGABRT, &sig_abrt_new, &sig_abrt_old) < 0) {
 141                 _ERR("Fail to add sig handler");
 142         }
 143 }
 144
 145 static bool storage_cb(int id, storage_type_e type, storage_state_e state, const char *path, void *user_data)
 146 {
 147         int* tmp = (int*)user_data;
 148         if (type == STORAGE_TYPE_INTERNAL)
 149         {
 150                 *tmp = id;
 151                 return false;
 152         }
 153
 154         return true;
 155 }
 156
 157 static void setSpecialFolder(storage_directory_e type, const char* key)
 158 {
 159         int error;
 160         char* path = NULL;
 161         static int __storageId = -1;
 162
 163         if (__storageId < 0) {
 164                 error = storage_foreach_device_supported(storage_cb, &__storageId);
 165                 if (error != STORAGE_ERROR_NONE) {
 166                         return;
 167                 }
 168         }
 169
 170         error = storage_get_directory(__storageId, type, &path);
 171         if (error == STORAGE_ERROR_NONE && path != NULL) {
 172                 setenv(key, const_cast<char *>(path), 1);
 173                 free(path);
 174         }
 175 }
 176
 177 static void initEnvForSpecialFolder()
 178 {
 179         if (getenv("XDG_PICTURES_DIR") == NULL) {
 180                 setSpecialFolder(STORAGE_DIRECTORY_IMAGES, "XDG_PICTURES_DIR");
 181         }
 182
 183         if (getenv("XDG_MUSIC_DIR") == NULL) {
 184                 setSpecialFolder(STORAGE_DIRECTORY_MUSIC, "XDG_MUSIC_DIR");
 185         }
 186
 187         if (getenv("XDG_VIDEOS_DIR") == NULL) {
 188                 setSpecialFolder(STORAGE_DIRECTORY_VIDEOS, "XDG_VIDEOS_DIR");
 189         }
 190 }
 191
 192 // terminate candidate process when language changed
 193 // icu related data (CultureInfo, etc) should be recreated.
 194 static void langChangedCB(keynode_t *key, void* data)
 195 {
 196         _INFO("terminiate candidate process to update language.");
 197         exit(0);
 198 }
 199
 200 static void setLang()
 201 {
 202         char* lang = vconf_get_str(VCONFKEY_LANGSET);
 203         if (!lang) {
 204                 _ERR("Fail to get language from vconf");
 205                 return;
 206         }
 207
 208         // In order to operate ICU (used for globalization) normally, the following
 209         // environment variables must be set before using ICU API.
 210         // When running Applicaiton, the following environment variables are set by AppFW.
 211         // But when preloading the dll in the candidate process, the following environment variables are not set
 212         // As a result, CultureInfo is incorrectly generated and malfunctions.
 213         // For example, uloc_getDefault() returns en_US_POSIX, CultureInfo is set to invariant mode.
 214         setenv("LANG", const_cast<char *>(lang), 1);
 215         setlocale(LC_ALL, const_cast<char *>(lang));
 216
 217         free(lang);
 218 }
 219
 220 static std::string readSelfPath()
 221 {
 222         char buff[PATH_MAX];
 223         ssize_t len = ::readlink("/proc/self/exe", buff, sizeof(buff)-1);
 224         if (len != -1) {
 225                 buff[len] = '\0';
 226                 return std::string(buff);
 227         }
 228
 229         return "";
 230 }
 231
 232 static void removeDebugPipe()
 233 {
 234         DIR *dir;
 235         struct dirent* entry;
 236         char debugPipeFiles[PATH_MAX];;
 237         sprintf(debugPipeFiles, "/tmp/clr-debug-pipe-%d-", getpid());
 238
 239         dir = opendir("/tmp");
 240         if (dir == nullptr) {
 241                 _ERR("Fail to open /tmp directory");
 242                 return;
 243         }
 244
 245         while ((entry = readdir(dir)) != nullptr) {
 246                 std::string path = concatPath("/tmp", entry->d_name);
 247                 if (path.find(debugPipeFiles) != std::string::npos) {
 248                         if (!removeFile(path)) {
 249                                 _ERR("Fail to remove file (%s)", path.c_str());
 250                         }
 251                 }
 252         }
 253
 254         closedir(dir);
 255 }
 256
 257 void preload()
 258 {
 259         typedef void (*PreloadDelegate)();
 260         PreloadDelegate preloadDelegate;
 261
 262         int ret = createDelegate(__hostHandle,
 263                 __domainId,
 264                 "Tizen.Runtime",
 265                 "Tizen.Runtime.Preloader",
 266                 "Preload",
 267                 (void**)&preloadDelegate);
 268
 269         if (ret < 0) {
 270                 _ERR("Failed to create delegate for Tizen.Runtime Preload (0x%08x)", ret);
 271         } else {
 272                 preloadDelegate();
 273         }
 274
 275         pluginPreload();
 276 }
 277
 278 bool initializeCoreClr(PathManager* pm, const std::string& tpa)
 279 {
 280         const char *propertyKeys[] = {
 281                 "TRUSTED_PLATFORM_ASSEMBLIES",
 282                 "APP_PATHS",
 283                 "APP_NI_PATHS",
 284                 "NATIVE_DLL_SEARCH_DIRECTORIES",
 285                 "AppDomainCompatSwitch"
 286         };
 287
 288         const char *propertyValues[] = {
 289                 tpa.c_str(),
 290                 pm->getAppPaths().c_str(),
 291                 pm->getAppNIPaths().c_str(),
 292                 pm->getNativeDllSearchingPaths().c_str(),
 293                 "UseLatestBehaviorWhenTFMNotSpecified"
 294         };
 295
 296         std::string selfPath = readSelfPath();
 297
 298         int st = initializeClr(selfPath.c_str(),
 299                                                         "TizenDotnetApp",
 300                                                         sizeof(propertyKeys) / sizeof(propertyKeys[0]),
 301                                                         propertyKeys,
 302                                                         propertyValues,
 303                                                         &__hostHandle,
 304                                                         &__domainId);
 305
 306         if (st < 0) {
 307                 _ERR("initialize core clr fail! (0x%08x)", st);
 308                 return false;
 309         }
 310
 311         pluginSetCoreclrInfo(__hostHandle, __domainId, createDelegate);
 312
 313         _INFO("Initialize core clr success");
 314         return true;
 315 }
 316
 317 int CoreRuntime::initialize(const char* appType, LaunchMode launchMode)
 318 {
 319         if (__initialized) {
 320                 _ERR("CoreRuntime is already initialized");
 321                 return -1;
 322         }
 323
 324         // Intiailize ecore first (signal handlers, etc.) before runtime init.
 325         ecore_init();
 326
 327         // set language environment to support ICU
 328         setLang();
 329
 330         char *env = nullptr;
 331         env = getenv("CORECLR_ENABLE_PROFILING");
 332         if (env != nullptr && !strcmp(env, "1")) {
 333                 _INFO("profiling mode on");
 334                 __isProfileMode = true;
 335         }
 336
 337         // plugin initialize should be called before creating threads.
 338         // In case of VD plugins, attaching secure zone is done in the plugin_initialize().
 339         // When attaching to a secure zone, if there is a created thread, it will failed.
 340         // So, plugin initialize should be called before creating threads.
 341         if (initializePluginManager(appType) < 0) {
 342                 _ERR("Failed to initialize PluginManager");
 343         }
 344
 345         // checkInjection checks dotnet-launcher run mode
 346         // At the moment, this mechanism is used only when the Memory Profiler is started.
 347         int res = checkInjection();
 348         if (res != 0) {
 349                 _ERR("Failed to initnialize Memory Profiler");
 350                 return -1;
 351         }
 352
 353 #ifdef __arm__
 354         // libunwind library is used to unwind stack frame, but libunwind for ARM
 355         // does not support ARM vfpv3/NEON registers in DWARF format correctly.
 356         // Therefore let's disable stack unwinding using DWARF information
 357         // See https://github.com/dotnet/coreclr/issues/6698
 358         //
 359         // libunwind use following methods to unwind stack frame.
 360         // UNW_ARM_METHOD_ALL          0xFF
 361         // UNW_ARM_METHOD_DWARF        0x01
 362         // UNW_ARM_METHOD_FRAME        0x02
 363         // UNW_ARM_METHOD_EXIDX        0x04
 364         putenv(const_cast<char *>("UNW_ARM_UNWIND_METHOD=6"));
 365 #endif // __arm__
 366
 367         // Enable diagnostics.
 368         // clr create clr-debug-pipe-xxx and dotnet-diagnostics-xxx file under /tmp dir.
 369         putenv(const_cast<char *>("COMPlus_EnableDiagnostics=1"));
 370
 371         // Write Debug.WriteLine to stderr
 372         putenv(const_cast<char *>("COMPlus_DebugWriteToStdErr=1"));
 373
 374 #ifdef USE_DEFAULT_BASE_ADDR
 375         putenv(const_cast<char *>("COMPlus_UseDefaultBaseAddr=1"));
 376 #endif // USE_DEFAULT_BASE_ADDR
 377
 378         // Disable config cache to set environment after coreclr_initialize()
 379         putenv(const_cast<char *>("COMPlus_DisableConfigCache=1"));
 380
 381         // read string from external file and set them to environment value.
 382         setEnvFromFile();
 383
 384         try {
 385                 __pm = new PathManager();
 386         } catch (const std::exception& e) {
 387                 _ERR("Failed to create PathManager");
 388                 return -1;
 389         }
 390
 391         char* pluginDllPaths = pluginGetDllPath();
 392         if (pluginDllPaths && pluginDllPaths[0] != '\0') {
 393                 __pm->addPlatformAssembliesPaths(pluginDllPaths, true);
 394         }
 395
 396         char* pluginNativePaths = pluginGetNativeDllSearchingPath();
 397         if (pluginNativePaths && pluginNativePaths[0] != '\0') {
 398                 __pm->addNativeDllSearchingPaths(pluginNativePaths, true);
 399         }
 400
 401         char* pluginExtraDllPaths = pluginGetExtraDllPath();
 402         if (pluginExtraDllPaths && pluginExtraDllPaths[0] != '\0') {
 403                 __pm->setExtraDllPaths(pluginExtraDllPaths);
 404         }
 405
 406         pluginHasLogControl();
 407
 408         std::string libCoreclr(concatPath(__pm->getRuntimePath(), "libcoreclr.so"));
 409
 410         __coreclrLib = dlopen(libCoreclr.c_str(), RTLD_NOW | RTLD_LOCAL);
 411         if (__coreclrLib == nullptr) {
 412                 char *err = dlerror();
 413                 _ERR("dlopen failed to open libcoreclr.so with error %s", err);
 414                 return -1;
 415         }
 416
 417 #define CORELIB_RETURN_IF_NOSYM(type, variable, name) \
 418         do { \
 419                 variable = (type)dlsym(__coreclrLib, name); \
 420                 if (variable == nullptr) { \
 421                         _ERR(name " is not found in the libcoreclr.so"); \
 422                         return -1; \
 423                 } \
 424         } while (0)
 425
 426         CORELIB_RETURN_IF_NOSYM(coreclr_initialize_ptr, initializeClr, "coreclr_initialize");
 427         CORELIB_RETURN_IF_NOSYM(coreclr_execute_assembly_ptr, executeAssembly, "coreclr_execute_assembly");
 428         CORELIB_RETURN_IF_NOSYM(coreclr_shutdown_ptr, shutdown, "coreclr_shutdown");
 429         CORELIB_RETURN_IF_NOSYM(coreclr_create_delegate_ptr, createDelegate, "coreclr_create_delegate");
 430
 431 #undef CORELIB_RETURN_IF_NOSYM
 432
 433         _INFO("libcoreclr dlopen and dlsym success");
 434
 435         // Set environment for System.Environment.SpecialFolder
 436         // Below function creates dbus connection by callging storage API.
 437         // If dbus connection is created bofere fork(), forked process cannot use dbus.
 438         // To avoid gdbus blocking issue, below function should be called after fork()
 439         initEnvForSpecialFolder();
 440
 441         std::string tpa;
 442         char* pluginTPA = pluginGetTPA();
 443         if (pluginTPA && pluginTPA[0] != '\0') {
 444                 tpa = std::string(pluginTPA);
 445         } else {
 446                 addAssembliesFromDirectories(__pm->getPlatformAssembliesPaths(), tpa);
 447         }
 448
 449         if (!initializeCoreClr(__pm, tpa)) {
 450                 _ERR("Failed to initialize coreclr");
 451                 return -1;
 452         }
 453
 454         int st = createDelegate(__hostHandle, __domainId, "Tizen.Runtime", "Tizen.Runtime.Environment", "SetEnvironmentVariable", (void**)&setEnvironmentVariable);
 455         if (st < 0 || setEnvironmentVariable == nullptr) {
 456                 _ERR("Create delegate for Tizen.Runtime.dll -> Tizen.Runtime.Environment -> SetEnvironmentVariable failed (0x%08x)", st);
 457                 return -1;
 458         }
 459
 460         st = createDelegate(__hostHandle, __domainId, "Tizen.Runtime", "Tizen.Runtime.Profiler", "StopProfileAfterDelay", (void**)&stopProfileAfterDelay);
 461         if (st < 0 || stopProfileAfterDelay == nullptr) {
 462                 _ERR("Create delegate for Tizen.Runtime.dll -> Tizen.Runtime.Profiler -> StopProfileAfterDelay failed (0x%08x)", st);
 463                 return -1;
 464         }
 465
 466         st = createDelegate(__hostHandle, __domainId, "Tizen.Runtime", "Tizen.Runtime.AppSetting", "SetSwitch", (void**)&setSwitch);
 467         if (st < 0 || setSwitch == nullptr) {
 468                 _ERR("Create delegate for Tizen.Runtime.dll -> Tizen.Runtime.AppSetting -> SetSwitch failed (0x%08x)", st);
 469                 return -1;
 470         }
 471
 472         if (launchMode == LaunchMode::loader) {
 473                 // terminate candidate process if language is changed.
 474                 // CurrentCulture created for preloaded dlls should be updated.
 475                 vconf_notify_key_changed(VCONFKEY_LANGSET, langChangedCB, NULL);
 476
 477                 // preload libraries and manage dlls for optimizing startup time
 478                 preload();
 479
 480                 // The debug pipe created in the candidate process has a "User" label.
 481                 // As a result, smack deny occurs when app process try to access the debug pipe.
 482                 // Also, since debugging is performed only in standalone mode,
 483                 // the debug pipe doesnot be used in the candidate process.
 484                 // So, to avoid smack deny error, delete unused debug pipe files.
 485                 removeDebugPipe();
 486         }
 487
 488         __initialized = true;
 489
 490         _INFO("CoreRuntime initialize success");
 491
 492         return 0;
 493 }
 494
 495 void CoreRuntime::finalize()
 496 {
 497         // call plugin finalize function to notify finalize to plugin
 498         // dlclose shoud be done after coreclr shutdown to avoid breaking signal chain
 499         pluginFinalize();
 500
 501         // ignore the signal generated by an exception that occurred during shutdown
 502         checkOnTerminate = true;
 503
 504         // workaround : to prevent crash while process terminate on profiling mode,
 505         //              kill process immediately.
 506         // see https://github.com/dotnet/coreclr/issues/26687
 507         if (__isProfileMode) {
 508                 _INFO("shutdown process immediately.");
 509                 _exit(0);
 510         }
 511
 512         if (__hostHandle != nullptr) {
 513                 int st = shutdown(__hostHandle, __domainId);
 514                 if (st < 0)
 515                         _ERR("shutdown core clr fail! (0x%08x)", st);
 516                 __hostHandle = nullptr;
 517         }
 518
 519         if (__coreclrLib != nullptr) {
 520                 if (dlclose(__coreclrLib) != 0) {
 521                         _ERR("libcoreclr.so close failed");
 522                 }
 523
 524                 __coreclrLib = nullptr;
 525         }
 526
 527         finalizePluginManager();
 528
 529         delete __pm;
 530         __pm = NULL;
 531
 532         __envList.clear();
 533
 534         _INFO("CoreRuntime finalized");
 535 }
 536
 537 int CoreRuntime::launch(const char* appId, const char* root, const char* path, int argc, char* argv[], bool profile)
 538 {
 539         if (!__initialized) {
 540                 _ERR("Runtime is not initialized");
 541                 return -1;
 542         }
 543
 544         if (path == nullptr) {
 545                 _ERR("executable path is null");
 546                 return -1;
 547         }
 548
 549         if (!isFile(path)) {
 550                 _ERR("File not exist : %s", path);
 551                 return -1;
 552         }
 553
 554         // VD has their own signal handler.
 555         if (!pluginHasLogControl()) {
 556                 registerSigHandler();
 557         }
 558
 559         pluginSetAppInfo(appId, path);
 560
 561         // temporal root path is overrided to real application root path
 562         __pm->setAppRootPath(root);
 563
 564         // set application data path to coreclr environment.
 565         // application data path can be changed by owner. So, we have to set data path just before launching.
 566         char* localDataPath = app_get_data_path();
 567         if (localDataPath != nullptr) {
 568                 setEnvironmentVariable("XDG_DATA_HOME", localDataPath);
 569
 570                 // set profile.data path and collect/use it if it non-exists/exists.
 571                 if (profile) {
 572                         char multiCoreJitProfile[strlen(localDataPath) + strlen(PROFILE_BASENAME) + 1];
 573                         memcpy(multiCoreJitProfile, localDataPath, strlen(localDataPath) + 1);
 574                         strncat(multiCoreJitProfile, PROFILE_BASENAME, strlen(PROFILE_BASENAME));
 575
 576                         setEnvironmentVariable("COMPlus_MultiCoreJitProfile", multiCoreJitProfile);
 577                         setEnvironmentVariable("COMPlus_MultiCoreJitMinNumCpus", "1");
 578
 579                         if (exist(multiCoreJitProfile)) {
 580                                 setEnvironmentVariable("COMPlus_MultiCoreJitNoProfileGather", "1");
 581                         } else {
 582                                 setEnvironmentVariable("COMPlus_MultiCoreJitNoProfileGather", "0");
 583                                 // stop profiling and write collected data after delay if env value is set.
 584                                 char *env = getenv("CLR_MCJ_PROFILE_WRITE_DELAY");
 585                                 if (env != nullptr) {
 586                                         int delay = std::atoi(env);
 587                                         // To avoid undefined behavior by out-of-range input(atoi), set max delay value to 100.
 588                                         if (delay > 0) {
 589                                                 if (delay > MAX_DELAY_SEC) delay = MAX_DELAY_SEC;
 590                                                 stopProfileAfterDelay(delay);
 591                                         }
 592                                 }
 593                         }
 594                 }
 595                 free(localDataPath);
 596         }
 597
 598         if (exist(__pm->getAppRootPath() + "/bin/" + DISABLE_IPV6_FILE)) {
 599                 setSwitch("System.Net.DisableIPv6", true);
 600         }
 601
 602         setSwitch("Switch.System.Diagnostics.StackTrace.ShowILOffsets", true);
 603
 604         vconf_ignore_key_changed(VCONFKEY_LANGSET, langChangedCB);
 605
 606         pluginBeforeExecute();
 607
 608         _INFO("execute assembly : %s", path);
 609
 610         unsigned int ret = 0;
 611         int st = executeAssembly(__hostHandle, __domainId, argc, (const char**)argv, path, &ret);
 612         if (st < 0)
 613                 _ERR("Failed to Execute Assembly %s (0x%08x)", path, st);
 614         return ret;
 615 }
 616
 617 }  // namespace dotnetcore
 618 }  // namespace runtime
 619 }  // namespace tizen