| // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| #include <stdlib.h> |
| #include <string.h> |
| #include <stdio.h> |
| |
| #include "include/dart_api.h" |
| #include "include/dart_tools_api.h" |
| |
| #include "bin/builtin.h" |
| #include "bin/dartutils.h" |
| #include "bin/directory.h" |
| #include "bin/embedded_dart_io.h" |
| #include "bin/eventhandler.h" |
| #include "bin/extensions.h" |
| #include "bin/file.h" |
| #include "bin/isolate_data.h" |
| #include "bin/loader.h" |
| #include "bin/log.h" |
| #include "bin/platform.h" |
| #include "bin/process.h" |
| #include "bin/thread.h" |
| #include "bin/utils.h" |
| #include "bin/vmservice_impl.h" |
| #include "platform/globals.h" |
| #include "platform/hashmap.h" |
| #include "platform/text_buffer.h" |
| #if !defined(DART_PRECOMPILER) |
| #include "zlib/zlib.h" |
| #endif |
| |
| namespace dart { |
| namespace bin { |
| |
| // vm_isolate_snapshot_buffer points to a snapshot for the vm isolate if we |
| // link in a snapshot otherwise it is initialized to NULL. |
| extern const uint8_t* vm_isolate_snapshot_buffer; |
| |
| // isolate_snapshot_buffer points to a snapshot for an isolate if we link in a |
| // snapshot otherwise it is initialized to NULL. |
| extern const uint8_t* isolate_snapshot_buffer; |
| |
| /** |
| * Global state used to control and store generation of application snapshots |
| * (script/full). |
| * A full application snapshot can be generated and run using the following |
| * commands |
| * - Generating a full application snapshot : |
| * dart_bootstrap --full-snapshot-after-run=<filename> --package-root=<dirs> |
| * <script_uri> [<script_options>] |
| * - Running the full application snapshot generated above : |
| * dart --run-full-snapshot=<filename> <script_uri> [<script_options>] |
| */ |
| static bool run_app_snapshot = false; |
| static const char* snapshot_filename = NULL; |
| enum SnapshotKind { |
| kNone, |
| kScript, |
| kAppAOT, |
| kAppJITAfterRun, |
| kAppAfterRun, |
| }; |
| static SnapshotKind gen_snapshot_kind = kNone; |
| |
| // Value of the --package-root flag. |
| // (This pointer points into an argv buffer and does not need to be |
| // free'd.) |
| static const char* commandline_package_root = NULL; |
| |
| // Value of the --packages flag. |
| // (This pointer points into an argv buffer and does not need to be |
| // free'd.) |
| static const char* commandline_packages_file = NULL; |
| |
| |
| // Global flag that is used to indicate that we want to compile all the |
| // dart functions and not run anything. |
| static bool compile_all = false; |
| |
| |
| // Global flag that is used to indicate that we want to use blobs/mmap instead |
| // of assembly/shared libraries for precompilation. |
| static bool use_blobs = false; |
| |
| |
| // Global flag that is used to indicate that we want to compile everything in |
| // the same way as precompilation before main, then continue running in the |
| // same process. |
| // Always set this with dart_noopt. |
| #if defined(DART_PRECOMPILER) && !defined(DART_NO_SNAPSHOT) |
| static const bool is_noopt = true; |
| #else |
| static const bool is_noopt = false; |
| #endif |
| |
| |
| extern const char* kPrecompiledLibraryName; |
| extern const char* kPrecompiledInstructionsSymbolName; |
| extern const char* kPrecompiledDataSymbolName; |
| |
| static const char* kVMIsolateSuffix = "snapshot.vmisolate"; |
| static const char* kIsolateSuffix = "snapshot.isolate"; |
| static const char* kAssemblySuffix = "snapshot.S"; |
| static const char* kInstructionsSuffix = "snapshot.instructions"; |
| static const char* kRODataSuffix = "snapshot.rodata"; |
| |
| |
| // Global flag that is used to indicate that we want to trace resolution of |
| // URIs and the loading of libraries, parts and scripts. |
| static bool trace_loading = false; |
| |
| |
| static const char* DEFAULT_VM_SERVICE_SERVER_IP = "127.0.0.1"; |
| static const int DEFAULT_VM_SERVICE_SERVER_PORT = 8181; |
| // VM Service options. |
| static const char* vm_service_server_ip = DEFAULT_VM_SERVICE_SERVER_IP; |
| // The 0 port is a magic value which results in the first available port |
| // being allocated. |
| static int vm_service_server_port = -1; |
| |
| |
| // Exit code indicating an API error. |
| static const int kApiErrorExitCode = 253; |
| // Exit code indicating a compilation error. |
| static const int kCompilationErrorExitCode = 254; |
| // Exit code indicating an unhandled error that is not a compilation error. |
| static const int kErrorExitCode = 255; |
| // Exit code indicating a vm restart request. Never returned to the user. |
| static const int kRestartRequestExitCode = 1000; |
| |
| // Global flag that is used to indicate that the VM should do a clean |
| // shutdown. |
| static bool do_vm_shutdown = true; |
| |
| static void ErrorExit(int exit_code, const char* format, ...) { |
| va_list arguments; |
| va_start(arguments, format); |
| Log::VPrintErr(format, arguments); |
| va_end(arguments); |
| fflush(stderr); |
| |
| Dart_ExitScope(); |
| Dart_ShutdownIsolate(); |
| |
| // Terminate process exit-code handler. |
| Process::TerminateExitCodeHandler(); |
| |
| char* error = Dart_Cleanup(); |
| if (error != NULL) { |
| Log::PrintErr("VM cleanup failed: %s\n", error); |
| free(error); |
| } |
| |
| if (do_vm_shutdown) { |
| EventHandler::Stop(); |
| } |
| Platform::Exit(exit_code); |
| } |
| |
| |
| // The environment provided through the command line using -D options. |
| static dart::HashMap* environment = NULL; |
| |
| static bool IsValidFlag(const char* name, |
| const char* prefix, |
| intptr_t prefix_length) { |
| intptr_t name_length = strlen(name); |
| return ((name_length > prefix_length) && |
| (strncmp(name, prefix, prefix_length) == 0)); |
| } |
| |
| |
| static bool version_option = false; |
| static bool ProcessVersionOption(const char* arg, |
| CommandLineOptions* vm_options) { |
| if (*arg != '\0') { |
| return false; |
| } |
| version_option = true; |
| return true; |
| } |
| |
| |
| static bool help_option = false; |
| static bool ProcessHelpOption(const char* arg, CommandLineOptions* vm_options) { |
| if (*arg != '\0') { |
| return false; |
| } |
| help_option = true; |
| return true; |
| } |
| |
| |
| static bool verbose_option = false; |
| static bool ProcessVerboseOption(const char* arg, |
| CommandLineOptions* vm_options) { |
| if (*arg != '\0') { |
| return false; |
| } |
| verbose_option = true; |
| return true; |
| } |
| |
| |
| static bool ProcessPackageRootOption(const char* arg, |
| CommandLineOptions* vm_options) { |
| ASSERT(arg != NULL); |
| if (*arg == '-') { |
| return false; |
| } |
| commandline_package_root = arg; |
| return true; |
| } |
| |
| |
| static bool ProcessPackagesOption(const char* arg, |
| CommandLineOptions* vm_options) { |
| ASSERT(arg != NULL); |
| if (*arg == '-') { |
| return false; |
| } |
| commandline_packages_file = arg; |
| return true; |
| } |
| |
| |
| static void* GetHashmapKeyFromString(char* key) { |
| return reinterpret_cast<void*>(key); |
| } |
| |
| |
| static bool ExtractPortAndIP(const char *option_value, |
| int *out_port, |
| const char **out_ip, |
| int default_port, |
| const char *default_ip) { |
| // [option_value] has to be one of the following formats: |
| // - "" |
| // - ":8181" |
| // - "=8181" |
| // - ":8181/192.168.0.1" |
| // - "=8181/192.168.0.1" |
| |
| if (*option_value== '\0') { |
| *out_ip = default_ip; |
| *out_port = default_port; |
| return true; |
| } |
| |
| if ((*option_value != '=') && (*option_value != ':')) { |
| return false; |
| } |
| |
| int port = atoi(option_value + 1); |
| const char *slash = strstr(option_value, "/"); |
| if (slash == NULL) { |
| *out_ip = default_ip; |
| *out_port = port; |
| return true; |
| } |
| |
| int _, n; |
| if (sscanf(option_value + 1, "%d/%d.%d.%d.%d%n", // NOLINT(runtime/printf) |
| &_, &_, &_, &_, &_, &n)) { |
| if (option_value[1 + n] == '\0') { |
| *out_ip = slash + 1; |
| *out_port = port; |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| |
| static bool ProcessEnvironmentOption(const char* arg, |
| CommandLineOptions* vm_options) { |
| ASSERT(arg != NULL); |
| if (*arg == '\0') { |
| // Ignore empty -D option. |
| Log::PrintErr("No arguments given to -D option\n"); |
| return true; |
| } |
| if (environment == NULL) { |
| environment = new HashMap(&HashMap::SameStringValue, 4); |
| } |
| // Split the name=value part of the -Dname=value argument. |
| char* name; |
| char* value = NULL; |
| const char* equals_pos = strchr(arg, '='); |
| if (equals_pos == NULL) { |
| // No equal sign (name without value) currently not supported. |
| Log::PrintErr("No value given to -D option\n"); |
| return false; |
| } else { |
| int name_len = equals_pos - arg; |
| if (name_len == 0) { |
| Log::PrintErr("No name given to -D option\n"); |
| return false; |
| } |
| // Split name=value into name and value. |
| name = reinterpret_cast<char*>(malloc(name_len + 1)); |
| strncpy(name, arg, name_len); |
| name[name_len] = '\0'; |
| value = strdup(equals_pos + 1); |
| } |
| HashMap::Entry* entry = environment->Lookup( |
| GetHashmapKeyFromString(name), HashMap::StringHash(name), true); |
| ASSERT(entry != NULL); // Lookup adds an entry if key not found. |
| entry->value = value; |
| return true; |
| } |
| |
| |
| static bool ProcessCompileAllOption(const char* arg, |
| CommandLineOptions* vm_options) { |
| ASSERT(arg != NULL); |
| if (*arg != '\0') { |
| return false; |
| } |
| compile_all = true; |
| return true; |
| } |
| |
| |
| static bool ProcessUseBlobsOption(const char* arg, |
| CommandLineOptions* vm_options) { |
| ASSERT(arg != NULL); |
| if (*arg != '\0') { |
| return false; |
| } |
| use_blobs = true; |
| return true; |
| } |
| |
| |
| static bool ProcessSnapshotFilenameOption(const char* filename, |
| CommandLineOptions* vm_options) { |
| snapshot_filename = filename; |
| if (gen_snapshot_kind == kNone) { |
| gen_snapshot_kind = kScript; // Default behavior. |
| } |
| return true; |
| } |
| |
| |
| static bool ProcessSnapshotKindOption(const char* kind, |
| CommandLineOptions* vm_options) { |
| if (strcmp(kind, "script") == 0) { |
| gen_snapshot_kind = kScript; |
| return true; |
| } else if (strcmp(kind, "app-aot") == 0) { |
| gen_snapshot_kind = kAppAOT; |
| return true; |
| } else if (strcmp(kind, "app-jit-after-run") == 0) { |
| gen_snapshot_kind = kAppJITAfterRun; |
| return true; |
| } else if (strcmp(kind, "app-after-run") == 0) { |
| gen_snapshot_kind = kAppAfterRun; |
| return true; |
| } |
| Log::PrintErr("Unrecognized snapshot kind: '%s'\nValid kinds are: " |
| "script, app-aot, app-jit-after-run, app-after-run\n", kind); |
| return false; |
| } |
| |
| |
| static bool ProcessRunAppSnapshotOption( |
| const char* filename, CommandLineOptions* vm_options) { |
| ASSERT(filename != NULL); |
| snapshot_filename = filename; |
| run_app_snapshot = true; |
| return true; |
| } |
| |
| |
| static bool ProcessEnableVmServiceOption(const char* option_value, |
| CommandLineOptions* vm_options) { |
| ASSERT(option_value != NULL); |
| |
| if (!ExtractPortAndIP(option_value, |
| &vm_service_server_port, |
| &vm_service_server_ip, |
| DEFAULT_VM_SERVICE_SERVER_PORT, |
| DEFAULT_VM_SERVICE_SERVER_IP)) { |
| Log::PrintErr("unrecognized --enable-vm-service option syntax. " |
| "Use --enable-vm-service[=<port number>[/<IPv4 address>]]\n"); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| |
| static bool ProcessObserveOption(const char* option_value, |
| CommandLineOptions* vm_options) { |
| ASSERT(option_value != NULL); |
| |
| if (!ExtractPortAndIP(option_value, |
| &vm_service_server_port, |
| &vm_service_server_ip, |
| DEFAULT_VM_SERVICE_SERVER_PORT, |
| DEFAULT_VM_SERVICE_SERVER_IP)) { |
| Log::PrintErr("unrecognized --observe option syntax. " |
| "Use --observe[=<port number>[/<IPv4 address>]]\n"); |
| return false; |
| } |
| |
| // These options should also be documented in the help message. |
| vm_options->AddArgument("--pause-isolates-on-exit"); |
| vm_options->AddArgument("--pause-isolates-on-unhandled-exceptions"); |
| vm_options->AddArgument("--warn-on-pause-with-no-debugger"); |
| return true; |
| } |
| |
| |
| static bool ProcessTraceLoadingOption(const char* arg, |
| CommandLineOptions* vm_options) { |
| if (*arg != '\0') { |
| return false; |
| } |
| trace_loading = true; |
| return true; |
| } |
| |
| |
| static bool ProcessHotReloadTestModeOption(const char* arg, |
| CommandLineOptions* vm_options) { |
| if (*arg != '\0') { |
| return false; |
| } |
| |
| // Identity reload. |
| vm_options->AddArgument("--identity_reload"); |
| // Start reloading quickly. |
| vm_options->AddArgument("--reload_every=50"); |
| // Reload from optimized and unoptimized code. |
| vm_options->AddArgument("--reload_every_optimized=false"); |
| // Reload less frequently as time goes on. |
| vm_options->AddArgument("--reload_every_back_off"); |
| // Ensure that an isolate has reloaded once. |
| vm_options->AddArgument("--check_reloaded"); |
| |
| return true; |
| } |
| |
| |
| static bool ProcessShutdownOption(const char* arg, |
| CommandLineOptions* vm_options) { |
| ASSERT(arg != NULL); |
| if (*arg == '\0') { |
| do_vm_shutdown = true; |
| vm_options->AddArgument("--shutdown"); |
| return true; |
| } |
| |
| if ((*arg != '=') && (*arg != ':')) { |
| return false; |
| } |
| |
| if (strcmp(arg + 1, "true") == 0) { |
| do_vm_shutdown = true; |
| vm_options->AddArgument("--shutdown"); |
| return true; |
| } else if (strcmp(arg + 1, "false") == 0) { |
| do_vm_shutdown = false; |
| vm_options->AddArgument("--no-shutdown"); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| |
| static struct { |
| const char* option_name; |
| bool (*process)(const char* option, CommandLineOptions* vm_options); |
| } main_options[] = { |
| // Standard options shared with dart2js. |
| { "-D", ProcessEnvironmentOption }, |
| { "-h", ProcessHelpOption }, |
| { "--help", ProcessHelpOption }, |
| { "--packages=", ProcessPackagesOption }, |
| { "--package-root=", ProcessPackageRootOption }, |
| { "-v", ProcessVerboseOption }, |
| { "--verbose", ProcessVerboseOption }, |
| { "--version", ProcessVersionOption }, |
| |
| // VM specific options to the standalone dart program. |
| { "--compile_all", ProcessCompileAllOption }, |
| { "--enable-vm-service", ProcessEnableVmServiceOption }, |
| { "--observe", ProcessObserveOption }, |
| { "--shutdown", ProcessShutdownOption }, |
| { "--snapshot=", ProcessSnapshotFilenameOption }, |
| { "--snapshot-kind=", ProcessSnapshotKindOption }, |
| { "--run-app-snapshot=", ProcessRunAppSnapshotOption }, |
| { "--use-blobs", ProcessUseBlobsOption }, |
| { "--trace-loading", ProcessTraceLoadingOption }, |
| { "--hot-reload-test-mode", ProcessHotReloadTestModeOption }, |
| { NULL, NULL } |
| }; |
| |
| |
| static bool ProcessMainOptions(const char* option, |
| CommandLineOptions* vm_options) { |
| int i = 0; |
| const char* name = main_options[0].option_name; |
| int option_length = strlen(option); |
| while (name != NULL) { |
| int length = strlen(name); |
| if ((option_length >= length) && (strncmp(option, name, length) == 0)) { |
| if (main_options[i].process(option + length, vm_options)) { |
| return true; |
| } |
| } |
| i += 1; |
| name = main_options[i].option_name; |
| } |
| return false; |
| } |
| |
| |
| // Parse out the command line arguments. Returns -1 if the arguments |
| // are incorrect, 0 otherwise. |
| static int ParseArguments(int argc, |
| char** argv, |
| CommandLineOptions* vm_options, |
| char** script_name, |
| CommandLineOptions* dart_options, |
| bool* print_flags_seen, |
| bool* verbose_debug_seen) { |
| const char* kPrefix = "--"; |
| const intptr_t kPrefixLen = strlen(kPrefix); |
| |
| // Store the executable name. |
| Platform::SetExecutableName(argv[0]); |
| |
| // Start the rest after the executable name. |
| int i = 1; |
| |
| // Parse out the vm options. |
| while (i < argc) { |
| if (ProcessMainOptions(argv[i], vm_options)) { |
| i++; |
| } else { |
| // Check if this flag is a potentially valid VM flag. |
| const char* kChecked = "-c"; |
| const char* kPackageRoot = "-p"; |
| if (strncmp(argv[i], kPackageRoot, strlen(kPackageRoot)) == 0) { |
| if (!ProcessPackageRootOption(argv[i] + strlen(kPackageRoot), |
| vm_options)) { |
| i++; |
| if ((argv[i] == NULL) || |
| !ProcessPackageRootOption(argv[i], vm_options)) { |
| Log::PrintErr("Invalid option specification : '%s'\n", argv[i - 1]); |
| i++; |
| break; |
| } |
| } |
| i++; |
| continue; // '-p' is not a VM flag so don't add to vm options. |
| } else if (strncmp(argv[i], kChecked, strlen(kChecked)) == 0) { |
| vm_options->AddArgument("--checked"); |
| i++; |
| continue; // '-c' is not a VM flag so don't add to vm options. |
| } else if (!IsValidFlag(argv[i], kPrefix, kPrefixLen)) { |
| break; |
| } |
| // The following two flags are processed by both the embedder and |
| // the VM. |
| const char* kPrintFlags1 = "--print-flags"; |
| const char* kPrintFlags2 = "--print_flags"; |
| const char* kVerboseDebug1 = "--verbose_debug"; |
| const char* kVerboseDebug2 = "--verbose-debug"; |
| if ((strncmp(argv[i], kPrintFlags1, strlen(kPrintFlags1)) == 0) || |
| (strncmp(argv[i], kPrintFlags2, strlen(kPrintFlags2)) == 0)) { |
| *print_flags_seen = true; |
| } else if ((strncmp(argv[i], |
| kVerboseDebug1, |
| strlen(kVerboseDebug1)) == 0) || |
| (strncmp(argv[i], |
| kVerboseDebug2, |
| strlen(kVerboseDebug2)) == 0)) { |
| *verbose_debug_seen = true; |
| } |
| vm_options->AddArgument(argv[i]); |
| i++; |
| } |
| } |
| |
| // The arguments to the VM are at positions 1 through i-1 in argv. |
| Platform::SetExecutableArguments(i, argv); |
| |
| // Get the script name. |
| if (i < argc) { |
| *script_name = argv[i]; |
| i++; |
| } else { |
| return -1; |
| } |
| |
| // Parse out options to be passed to dart main. |
| while (i < argc) { |
| dart_options->AddArgument(argv[i]); |
| i++; |
| } |
| |
| // Verify consistency of arguments. |
| if ((commandline_package_root != NULL) && |
| (commandline_packages_file != NULL)) { |
| Log::PrintErr("Specifying both a packages directory and a packages " |
| "file is invalid.\n"); |
| return -1; |
| } |
| if ((commandline_package_root != NULL) && |
| (strlen(commandline_package_root) == 0)) { |
| Log::PrintErr("Empty package root specified.\n"); |
| return -1; |
| } |
| if ((commandline_packages_file != NULL) && |
| (strlen(commandline_packages_file) == 0)) { |
| Log::PrintErr("Empty package file name specified.\n"); |
| return -1; |
| } |
| if (is_noopt && gen_snapshot_kind != kNone) { |
| Log::PrintErr("Generating a snapshot with dart_noopt is invalid.\n"); |
| return -1; |
| } |
| if ((gen_snapshot_kind != kNone) && (snapshot_filename == NULL)) { |
| Log::PrintErr("Generating a snapshot requires a filename (--snapshot).\n"); |
| return -1; |
| } |
| if ((gen_snapshot_kind != kNone) && run_app_snapshot) { |
| Log::PrintErr("Specifying an option to generate a snapshot and" |
| " run using a snapshot is invalid.\n"); |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| |
| static Dart_Handle CreateRuntimeOptions(CommandLineOptions* options) { |
| int options_count = options->count(); |
| Dart_Handle dart_arguments = Dart_NewList(options_count); |
| if (Dart_IsError(dart_arguments)) { |
| return dart_arguments; |
| } |
| for (int i = 0; i < options_count; i++) { |
| Dart_Handle argument_value = |
| DartUtils::NewString(options->GetArgument(i)); |
| if (Dart_IsError(argument_value)) { |
| return argument_value; |
| } |
| Dart_Handle result = Dart_ListSetAt(dart_arguments, i, argument_value); |
| if (Dart_IsError(result)) { |
| return result; |
| } |
| } |
| return dart_arguments; |
| } |
| |
| |
| static Dart_Handle EnvironmentCallback(Dart_Handle name) { |
| uint8_t* utf8_array; |
| intptr_t utf8_len; |
| Dart_Handle result = Dart_Null(); |
| Dart_Handle handle = Dart_StringToUTF8(name, &utf8_array, &utf8_len); |
| if (Dart_IsError(handle)) { |
| handle = Dart_ThrowException( |
| DartUtils::NewDartArgumentError(Dart_GetError(handle))); |
| } else { |
| char* name_chars = reinterpret_cast<char*>(malloc(utf8_len + 1)); |
| memmove(name_chars, utf8_array, utf8_len); |
| name_chars[utf8_len] = '\0'; |
| const char* value = NULL; |
| if (environment != NULL) { |
| HashMap::Entry* entry = environment->Lookup( |
| GetHashmapKeyFromString(name_chars), |
| HashMap::StringHash(name_chars), |
| false); |
| if (entry != NULL) { |
| value = reinterpret_cast<char*>(entry->value); |
| } |
| } |
| if (value != NULL) { |
| result = Dart_NewStringFromUTF8(reinterpret_cast<const uint8_t*>(value), |
| strlen(value)); |
| } |
| free(name_chars); |
| } |
| return result; |
| } |
| |
| |
| #define CHECK_RESULT(result) \ |
| if (Dart_IsError(result)) { \ |
| *error = strdup(Dart_GetError(result)); \ |
| if (Dart_IsCompilationError(result)) { \ |
| *exit_code = kCompilationErrorExitCode; \ |
| } else if (Dart_IsApiError(result)) { \ |
| *exit_code = kApiErrorExitCode; \ |
| } else if (Dart_IsVMRestartRequest(result)) { \ |
| *exit_code = kRestartRequestExitCode; \ |
| } else { \ |
| *exit_code = kErrorExitCode; \ |
| } \ |
| Dart_ExitScope(); \ |
| Dart_ShutdownIsolate(); \ |
| return NULL; \ |
| } \ |
| |
| |
| // Returns true on success, false on failure. |
| static Dart_Isolate CreateIsolateAndSetupHelper(const char* script_uri, |
| const char* main, |
| const char* package_root, |
| const char* packages_config, |
| Dart_IsolateFlags* flags, |
| char** error, |
| int* exit_code) { |
| ASSERT(script_uri != NULL); |
| |
| const bool needs_load_port = true; |
| #if defined(PRODUCT) |
| const bool run_service_isolate = needs_load_port; |
| #else |
| // Always create the service isolate in DEBUG and RELEASE modes for profiling, |
| // even if we don't need it for loading. |
| const bool run_service_isolate = true; |
| #endif // PRODUCT |
| if (!run_service_isolate && |
| (strcmp(script_uri, DART_VM_SERVICE_ISOLATE_NAME) == 0)) { |
| return NULL; |
| } |
| |
| IsolateData* isolate_data = new IsolateData(script_uri, |
| package_root, |
| packages_config); |
| Dart_Isolate isolate = Dart_CreateIsolate(script_uri, |
| main, |
| isolate_snapshot_buffer, |
| flags, |
| isolate_data, |
| error); |
| if (isolate == NULL) { |
| delete isolate_data; |
| return NULL; |
| } |
| |
| Dart_EnterScope(); |
| |
| if (isolate_snapshot_buffer != NULL) { |
| // Setup the native resolver as the snapshot does not carry it. |
| Builtin::SetNativeResolver(Builtin::kBuiltinLibrary); |
| Builtin::SetNativeResolver(Builtin::kIOLibrary); |
| } |
| |
| // Set up the library tag handler for this isolate. |
| Dart_Handle result = Dart_SetLibraryTagHandler(Loader::LibraryTagHandler); |
| CHECK_RESULT(result); |
| |
| if (Dart_IsServiceIsolate(isolate)) { |
| // If this is the service isolate, load embedder specific bits and return. |
| bool skip_library_load = run_app_snapshot; |
| if (!VmService::Setup(vm_service_server_ip, |
| vm_service_server_port, |
| skip_library_load)) { |
| *error = strdup(VmService::GetErrorMessage()); |
| return NULL; |
| } |
| if (compile_all) { |
| result = Dart_CompileAll(); |
| CHECK_RESULT(result); |
| } |
| Dart_ExitScope(); |
| Dart_ExitIsolate(); |
| return isolate; |
| } |
| |
| // Prepare builtin and other core libraries for use to resolve URIs. |
| // Set up various closures, e.g: printing, timers etc. |
| // Set up 'package root' for URI resolution. |
| result = DartUtils::PrepareForScriptLoading(false, trace_loading); |
| CHECK_RESULT(result); |
| |
| if (needs_load_port) { |
| // Set up the load port provided by the service isolate so that we can |
| // load scripts. |
| result = DartUtils::SetupServiceLoadPort(); |
| CHECK_RESULT(result); |
| } |
| |
| // Setup package root if specified. |
| result = DartUtils::SetupPackageRoot(package_root, packages_config); |
| CHECK_RESULT(result); |
| |
| result = Dart_SetEnvironmentCallback(EnvironmentCallback); |
| CHECK_RESULT(result); |
| |
| if (run_app_snapshot) { |
| result = DartUtils::SetupIOLibrary(script_uri); |
| CHECK_RESULT(result); |
| Loader::InitForSnapshot(script_uri); |
| } else { |
| // Load the specified application script into the newly created isolate. |
| Dart_Handle uri = |
| DartUtils::ResolveScript(Dart_NewStringFromCString(script_uri)); |
| CHECK_RESULT(uri); |
| result = Loader::LibraryTagHandler(Dart_kScriptTag, |
| Dart_Null(), |
| uri); |
| CHECK_RESULT(result); |
| |
| Dart_TimelineEvent("LoadScript", |
| Dart_TimelineGetMicros(), |
| Dart_GetMainPortId(), |
| Dart_Timeline_Event_Async_End, |
| 0, NULL, NULL); |
| |
| result = DartUtils::SetupIOLibrary(script_uri); |
| CHECK_RESULT(result); |
| } |
| |
| // Make the isolate runnable so that it is ready to handle messages. |
| Dart_ExitScope(); |
| Dart_ExitIsolate(); |
| bool retval = Dart_IsolateMakeRunnable(isolate); |
| if (!retval) { |
| *error = strdup("Invalid isolate state - Unable to make it runnable"); |
| Dart_EnterIsolate(isolate); |
| Dart_ShutdownIsolate(); |
| return NULL; |
| } |
| |
| return isolate; |
| } |
| |
| #undef CHECK_RESULT |
| |
| |
| static Dart_Isolate CreateIsolateAndSetup(const char* script_uri, |
| const char* main, |
| const char* package_root, |
| const char* package_config, |
| Dart_IsolateFlags* flags, |
| void* data, char** error) { |
| // The VM should never call the isolate helper with a NULL flags. |
| ASSERT(flags != NULL); |
| ASSERT(flags->version == DART_FLAGS_CURRENT_VERSION); |
| if ((package_root != NULL) && (package_config != NULL)) { |
| *error = strdup("Invalid arguments - Cannot simultaneously specify " |
| "package root and package map."); |
| return NULL; |
| } |
| |
| int exit_code = 0; |
| return CreateIsolateAndSetupHelper(script_uri, |
| main, |
| package_root, |
| package_config, |
| flags, |
| error, |
| &exit_code); |
| } |
| |
| |
| static void PrintVersion() { |
| Log::PrintErr("Dart VM version: %s\n", Dart_VersionString()); |
| } |
| |
| |
| static void PrintUsage() { |
| Log::PrintErr( |
| "Usage: dart [<vm-flags>] <dart-script-file> [<dart-options>]\n" |
| "\n" |
| "Executes the Dart script passed as <dart-script-file>.\n" |
| "\n"); |
| if (!verbose_option) { |
| Log::PrintErr( |
| "Common options:\n" |
| "--checked or -c\n" |
| " Insert runtime type checks and enable assertions (checked mode).\n" |
| "--help or -h\n" |
| " Display this message (add -v or --verbose for information about\n" |
| " all VM options).\n" |
| "--package-root=<path> or -p<path>\n" |
| " Where to find packages, that is, \"package:...\" imports.\n" |
| "--packages=<path>\n" |
| " Where to find a package spec file.\n" |
| "--observe[=<port>[/<bind-address>]]\n" |
| " The observe flag is a convenience flag used to run a program with a\n" |
| " set of options which are often useful for debugging under Observatory.\n" |
| " These options are currently:\n" |
| " --enable-vm-service[=<port>[/<bind-address>]]\n" |
| " --pause-isolates-on-exit\n" |
| " --pause-isolates-on-unhandled-exceptions\n" |
| " --warn-on-pause-with-no-debugger\n" |
| " This set is subject to change.\n" |
| " Please see these options (--help --verbose) for further documentation.\n" |
| "--version\n" |
| " Print the VM version.\n"); |
| } else { |
| Log::PrintErr( |
| "Supported options:\n" |
| "--checked or -c\n" |
| " Insert runtime type checks and enable assertions (checked mode).\n" |
| "--help or -h\n" |
| " Display this message (add -v or --verbose for information about\n" |
| " all VM options).\n" |
| "--package-root=<path> or -p<path>\n" |
| " Where to find packages, that is, \"package:...\" imports.\n" |
| "--packages=<path>\n" |
| " Where to find a package spec file.\n" |
| "--observe[=<port>[/<bind-address>]]\n" |
| " The observe flag is a convenience flag used to run a program with a\n" |
| " set of options which are often useful for debugging under Observatory.\n" |
| " These options are currently:\n" |
| " --enable-vm-service[=<port>[/<bind-address>]]\n" |
| " --pause-isolates-on-exit\n" |
| " --pause-isolates-on-unhandled-exceptions\n" |
| " --warn-on-pause-with-no-debugger\n" |
| " This set is subject to change.\n" |
| " Please see these options for further documentation.\n" |
| "--version\n" |
| " Print the VM version.\n" |
| "\n" |
| "--snapshot=<file_name>\n" |
| " loads Dart script and generates a snapshot in the specified file\n" |
| "\n" |
| "--trace-loading\n" |
| " enables tracing of library and script loading\n" |
| "\n" |
| "--enable-vm-service[=<port>[/<bind-address>]]\n" |
| " enables the VM service and listens on specified port for connections\n" |
| " (default port number is 8181, default bind address is 127.0.0.1).\n" |
| "\n" |
| "The following options are only used for VM development and may\n" |
| "be changed in any future version:\n"); |
| const char* print_flags = "--print_flags"; |
| Dart_SetVMFlags(1, &print_flags); |
| } |
| } |
| |
| |
| char* BuildIsolateName(const char* script_name, |
| const char* func_name) { |
| // Skip past any slashes in the script name. |
| const char* last_slash = strrchr(script_name, '/'); |
| if (last_slash != NULL) { |
| script_name = last_slash + 1; |
| } |
| |
| const char* kFormat = "%s/%s"; |
| intptr_t len = strlen(script_name) + strlen(func_name) + 2; |
| char* buffer = new char[len]; |
| ASSERT(buffer != NULL); |
| snprintf(buffer, len, kFormat, script_name, func_name); |
| return buffer; |
| } |
| |
| static void ShutdownIsolate(void* callback_data) { |
| IsolateData* isolate_data = reinterpret_cast<IsolateData*>(callback_data); |
| delete isolate_data; |
| } |
| |
| |
| static const char* InternalJsonRpcError(Dart_Handle error) { |
| TextBuffer buffer(128); |
| buffer.Printf("{\"code\":-32603," |
| "\"message\":\"Internal error\"," |
| "\"details\": \"%s\"}", |
| Dart_GetError(error)); |
| return buffer.Steal(); |
| } |
| |
| |
| class DartScope { |
| public: |
| DartScope() { Dart_EnterScope(); } |
| ~DartScope() { Dart_ExitScope(); } |
| }; |
| |
| |
| static bool ServiceGetIOHandler( |
| const char* method, |
| const char** param_keys, |
| const char** param_values, |
| intptr_t num_params, |
| void* user_data, |
| const char** response) { |
| DartScope scope; |
| // TODO(ajohnsen): Store the library/function in isolate data or user_data. |
| Dart_Handle dart_io_str = Dart_NewStringFromCString("dart:io"); |
| if (Dart_IsError(dart_io_str)) { |
| *response = InternalJsonRpcError(dart_io_str); |
| return false; |
| } |
| |
| Dart_Handle io_lib = Dart_LookupLibrary(dart_io_str); |
| if (Dart_IsError(io_lib)) { |
| *response = InternalJsonRpcError(io_lib); |
| return false; |
| } |
| |
| Dart_Handle handler_function_name = |
| Dart_NewStringFromCString("_serviceObjectHandler"); |
| if (Dart_IsError(handler_function_name)) { |
| *response = InternalJsonRpcError(handler_function_name); |
| return false; |
| } |
| |
| // TODO(johnmccutchan): paths is no longer used. Update the io |
| // _serviceObjectHandler function to use json rpc. |
| Dart_Handle paths = Dart_NewList(0); |
| Dart_Handle keys = Dart_NewList(num_params); |
| Dart_Handle values = Dart_NewList(num_params); |
| for (int i = 0; i < num_params; i++) { |
| Dart_ListSetAt(keys, i, Dart_NewStringFromCString(param_keys[i])); |
| Dart_ListSetAt(values, i, Dart_NewStringFromCString(param_values[i])); |
| } |
| Dart_Handle args[] = {paths, keys, values}; |
| Dart_Handle result = Dart_Invoke(io_lib, handler_function_name, 3, args); |
| if (Dart_IsError(result)) { |
| *response = InternalJsonRpcError(result); |
| return false; |
| } |
| |
| const char *json; |
| result = Dart_StringToCString(result, &json); |
| if (Dart_IsError(result)) { |
| *response = InternalJsonRpcError(result); |
| return false; |
| } |
| *response = strdup(json); |
| return true; |
| } |
| |
| |
| static const char* kStdoutStreamId = "Stdout"; |
| static const char* kStderrStreamId = "Stderr"; |
| |
| |
| static bool ServiceStreamListenCallback(const char* stream_id) { |
| if (strcmp(stream_id, kStdoutStreamId) == 0) { |
| SetCaptureStdout(true); |
| return true; |
| } else if (strcmp(stream_id, kStderrStreamId) == 0) { |
| SetCaptureStderr(true); |
| return true; |
| } |
| return false; |
| } |
| |
| |
| static void ServiceStreamCancelCallback(const char* stream_id) { |
| if (strcmp(stream_id, kStdoutStreamId) == 0) { |
| SetCaptureStdout(false); |
| } else if (strcmp(stream_id, kStderrStreamId) == 0) { |
| SetCaptureStderr(false); |
| } |
| } |
| |
| |
| static void WriteSnapshotFile(const char* snapshot_directory, |
| const char* filename, |
| bool write_magic_number, |
| const uint8_t* buffer, |
| const intptr_t size) { |
| char* concat = NULL; |
| const char* qualified_filename; |
| if ((snapshot_directory != NULL) && (strlen(snapshot_directory) > 0)) { |
| intptr_t len = snprintf(NULL, 0, "%s/%s", snapshot_directory, filename); |
| concat = new char[len + 1]; |
| snprintf(concat, len + 1, "%s/%s", snapshot_directory, filename); |
| qualified_filename = concat; |
| } else { |
| qualified_filename = filename; |
| } |
| |
| File* file = File::Open(qualified_filename, File::kWriteTruncate); |
| ASSERT(file != NULL); |
| |
| if (write_magic_number) { |
| // Write the magic number to indicate file is a script snapshot. |
| DartUtils::WriteMagicNumber(file); |
| } |
| |
| if (!file->WriteFully(buffer, size)) { |
| ErrorExit(kErrorExitCode, |
| "Unable to open file %s for writing snapshot\n", |
| qualified_filename); |
| } |
| file->Release(); |
| if (concat != NULL) { |
| delete concat; |
| } |
| } |
| |
| |
| static void ReadSnapshotFile(const char* snapshot_directory, |
| const char* filename, |
| const uint8_t** buffer) { |
| char* concat = NULL; |
| const char* qualified_filename; |
| if ((snapshot_directory != NULL) && (strlen(snapshot_directory) > 0)) { |
| intptr_t len = snprintf(NULL, 0, "%s/%s", snapshot_directory, filename); |
| concat = new char[len + 1]; |
| snprintf(concat, len + 1, "%s/%s", snapshot_directory, filename); |
| qualified_filename = concat; |
| } else { |
| qualified_filename = filename; |
| } |
| |
| void* file = DartUtils::OpenFile(qualified_filename, false); |
| if (file == NULL) { |
| fprintf(stderr, |
| "Error: Unable to open file %s for reading snapshot\n", |
| qualified_filename); |
| fflush(stderr); |
| Platform::Exit(kErrorExitCode); |
| } |
| intptr_t len = -1; |
| DartUtils::ReadFile(buffer, &len, file); |
| if ((*buffer == NULL) || (len == -1)) { |
| fprintf(stderr, |
| "Error: Unable to read snapshot file %s\n", qualified_filename); |
| fflush(stderr); |
| Platform::Exit(kErrorExitCode); |
| } |
| DartUtils::CloseFile(file); |
| if (concat != NULL) { |
| delete concat; |
| } |
| } |
| |
| |
| static void ReadExecutableSnapshotFile(const char* snapshot_directory, |
| const char* filename, |
| const uint8_t** buffer) { |
| char* concat = NULL; |
| const char* qualified_filename; |
| if ((snapshot_directory != NULL) && (strlen(snapshot_directory) > 0)) { |
| intptr_t len = snprintf(NULL, 0, "%s/%s", snapshot_directory, filename); |
| concat = new char[len + 1]; |
| snprintf(concat, len + 1, "%s/%s", snapshot_directory, filename); |
| qualified_filename = concat; |
| } else { |
| qualified_filename = filename; |
| } |
| |
| intptr_t len = -1; |
| *buffer = reinterpret_cast<uint8_t*>( |
| DartUtils::MapExecutable(qualified_filename, &len)); |
| if ((*buffer == NULL) || (len == -1)) { |
| fprintf(stderr, |
| "Error: Unable to read snapshot file %s\n", qualified_filename); |
| fflush(stderr); |
| Platform::Exit(kErrorExitCode); |
| } |
| if (concat != NULL) { |
| delete concat; |
| } |
| } |
| |
| |
| static void* LoadLibrarySymbol(const char* snapshot_directory, |
| const char* libname, |
| const char* symname) { |
| char* concat = NULL; |
| const char* qualified_libname; |
| if ((snapshot_directory != NULL) && (strlen(snapshot_directory) > 0)) { |
| intptr_t len = snprintf(NULL, 0, "%s/%s", snapshot_directory, libname); |
| concat = new char[len + 1]; |
| snprintf(concat, len + 1, "%s/%s", snapshot_directory, libname); |
| qualified_libname = concat; |
| } else { |
| qualified_libname = libname; |
| } |
| void* library = Extensions::LoadExtensionLibrary(qualified_libname); |
| if (concat != NULL) { |
| delete concat; |
| } |
| if (library == NULL) { |
| return NULL; |
| } |
| return Extensions::ResolveSymbol(library, symname); |
| } |
| |
| |
| static void GenerateScriptSnapshot() { |
| // First create a snapshot. |
| uint8_t* buffer = NULL; |
| intptr_t size = 0; |
| Dart_Handle result = Dart_CreateScriptSnapshot(&buffer, &size); |
| if (Dart_IsError(result)) { |
| ErrorExit(kErrorExitCode, "%s\n", Dart_GetError(result)); |
| } |
| |
| WriteSnapshotFile(NULL, snapshot_filename, true, buffer, size); |
| } |
| |
| |
| static void GeneratePrecompiledSnapshot() { |
| uint8_t* vm_isolate_buffer = NULL; |
| intptr_t vm_isolate_size = 0; |
| uint8_t* isolate_buffer = NULL; |
| intptr_t isolate_size = 0; |
| uint8_t* assembly_buffer = NULL; |
| intptr_t assembly_size = 0; |
| uint8_t* instructions_blob_buffer = NULL; |
| intptr_t instructions_blob_size = 0; |
| uint8_t* rodata_blob_buffer = NULL; |
| intptr_t rodata_blob_size = 0; |
| Dart_Handle result; |
| if (use_blobs) { |
| result = Dart_CreatePrecompiledSnapshotBlob( |
| &vm_isolate_buffer, |
| &vm_isolate_size, |
| &isolate_buffer, |
| &isolate_size, |
| &instructions_blob_buffer, |
| &instructions_blob_size, |
| &rodata_blob_buffer, |
| &rodata_blob_size); |
| } else { |
| result = Dart_CreatePrecompiledSnapshotAssembly( |
| &vm_isolate_buffer, |
| &vm_isolate_size, |
| &isolate_buffer, |
| &isolate_size, |
| &assembly_buffer, |
| &assembly_size); |
| } |
| if (Dart_IsError(result)) { |
| ErrorExit(kErrorExitCode, "%s\n", Dart_GetError(result)); |
| } |
| WriteSnapshotFile(snapshot_filename, kVMIsolateSuffix, |
| false, |
| vm_isolate_buffer, |
| vm_isolate_size); |
| WriteSnapshotFile(snapshot_filename, kIsolateSuffix, |
| false, |
| isolate_buffer, |
| isolate_size); |
| if (use_blobs) { |
| WriteSnapshotFile(snapshot_filename, kInstructionsSuffix, |
| false, |
| instructions_blob_buffer, |
| instructions_blob_size); |
| WriteSnapshotFile(snapshot_filename, kRODataSuffix, |
| false, |
| rodata_blob_buffer, |
| rodata_blob_size); |
| } else { |
| WriteSnapshotFile(snapshot_filename, kAssemblySuffix, |
| false, |
| assembly_buffer, |
| assembly_size); |
| } |
| } |
| |
| |
| static void GeneratePrecompiledJITSnapshot() { |
| if (!use_blobs) { |
| ErrorExit(kErrorExitCode, |
| "Generating app JIT snapshots as assembly unimplemented\n"); |
| } |
| uint8_t* vm_isolate_buffer = NULL; |
| intptr_t vm_isolate_size = 0; |
| uint8_t* isolate_buffer = NULL; |
| intptr_t isolate_size = 0; |
| uint8_t* instructions_blob_buffer = NULL; |
| intptr_t instructions_blob_size = 0; |
| uint8_t* rodata_blob_buffer = NULL; |
| intptr_t rodata_blob_size = 0; |
| Dart_Handle result = Dart_CreateAppJITSnapshot( |
| &vm_isolate_buffer, |
| &vm_isolate_size, |
| &isolate_buffer, |
| &isolate_size, |
| &instructions_blob_buffer, |
| &instructions_blob_size, |
| &rodata_blob_buffer, |
| &rodata_blob_size); |
| if (Dart_IsError(result)) { |
| ErrorExit(kErrorExitCode, "%s\n", Dart_GetError(result)); |
| } |
| WriteSnapshotFile(snapshot_filename, kVMIsolateSuffix, |
| false, |
| vm_isolate_buffer, |
| vm_isolate_size); |
| WriteSnapshotFile(snapshot_filename, kIsolateSuffix, |
| false, |
| isolate_buffer, |
| isolate_size); |
| WriteSnapshotFile(snapshot_filename, kInstructionsSuffix, |
| false, |
| instructions_blob_buffer, |
| instructions_blob_size); |
| WriteSnapshotFile(snapshot_filename, kRODataSuffix, |
| false, |
| rodata_blob_buffer, |
| rodata_blob_size); |
| } |
| |
| |
| static void GenerateFullSnapshot() { |
| // Create a full snapshot of the script. |
| Dart_Handle result; |
| uint8_t* vm_isolate_buffer = NULL; |
| intptr_t vm_isolate_size = 0; |
| uint8_t* isolate_buffer = NULL; |
| intptr_t isolate_size = 0; |
| |
| result = Dart_CreateSnapshot(&vm_isolate_buffer, |
| &vm_isolate_size, |
| &isolate_buffer, |
| &isolate_size); |
| if (Dart_IsError(result)) { |
| ErrorExit(kErrorExitCode, "%s\n", Dart_GetError(result)); |
| } |
| |
| WriteSnapshotFile(snapshot_filename, |
| kVMIsolateSuffix, |
| false, |
| vm_isolate_buffer, |
| vm_isolate_size); |
| WriteSnapshotFile(snapshot_filename, |
| kIsolateSuffix, |
| false, |
| isolate_buffer, |
| isolate_size); |
| } |
| |
| |
| #define CHECK_RESULT(result) \ |
| if (Dart_IsError(result)) { \ |
| if (Dart_IsVMRestartRequest(result)) { \ |
| Dart_ExitScope(); \ |
| Dart_ShutdownIsolate(); \ |
| return true; \ |
| } \ |
| const int exit_code = Dart_IsCompilationError(result) ? \ |
| kCompilationErrorExitCode : kErrorExitCode; \ |
| ErrorExit(exit_code, "%s\n", Dart_GetError(result)); \ |
| } |
| |
| |
| bool RunMainIsolate(const char* script_name, |
| CommandLineOptions* dart_options) { |
| // Call CreateIsolateAndSetup which creates an isolate and loads up |
| // the specified application script. |
| char* error = NULL; |
| int exit_code = 0; |
| char* isolate_name = BuildIsolateName(script_name, "main"); |
| Dart_Isolate isolate = CreateIsolateAndSetupHelper(script_name, |
| "main", |
| commandline_package_root, |
| commandline_packages_file, |
| NULL, |
| &error, |
| &exit_code); |
| if (isolate == NULL) { |
| delete [] isolate_name; |
| if (exit_code == kRestartRequestExitCode) { |
| free(error); |
| return true; |
| } |
| Log::PrintErr("%s\n", error); |
| free(error); |
| error = NULL; |
| Process::TerminateExitCodeHandler(); |
| error = Dart_Cleanup(); |
| if (error != NULL) { |
| Log::PrintErr("VM cleanup failed: %s\n", error); |
| free(error); |
| } |
| if (do_vm_shutdown) { |
| EventHandler::Stop(); |
| } |
| Platform::Exit((exit_code != 0) ? exit_code : kErrorExitCode); |
| } |
| delete [] isolate_name; |
| |
| Dart_EnterIsolate(isolate); |
| ASSERT(isolate == Dart_CurrentIsolate()); |
| ASSERT(isolate != NULL); |
| Dart_Handle result; |
| |
| Dart_EnterScope(); |
| |
| if (gen_snapshot_kind == kScript) { |
| GenerateScriptSnapshot(); |
| } else { |
| // Lookup the library of the root script. |
| Dart_Handle root_lib = Dart_RootLibrary(); |
| // Import the root library into the builtin library so that we can easily |
| // lookup the main entry point exported from the root library. |
| IsolateData* isolate_data = |
| reinterpret_cast<IsolateData*>(Dart_IsolateData(isolate)); |
| result = Dart_LibraryImportLibrary( |
| isolate_data->builtin_lib(), root_lib, Dart_Null()); |
| if (is_noopt || |
| (gen_snapshot_kind == kAppAfterRun) || |
| (gen_snapshot_kind == kAppAOT) || |
| (gen_snapshot_kind == kAppJITAfterRun)) { |
| // Load the embedder's portion of the VM service's Dart code so it will |
| // be included in the app snapshot. |
| if (!VmService::LoadForGenPrecompiled()) { |
| fprintf(stderr, |
| "VM service loading failed: %s\n", |
| VmService::GetErrorMessage()); |
| fflush(stderr); |
| exit(kErrorExitCode); |
| } |
| } |
| |
| if (compile_all) { |
| result = Dart_CompileAll(); |
| CHECK_RESULT(result); |
| } |
| |
| if (is_noopt || (gen_snapshot_kind == kAppAOT)) { |
| Dart_QualifiedFunctionName standalone_entry_points[] = { |
| { "dart:_builtin", "::", "_getMainClosure" }, |
| { "dart:_builtin", "::", "_getPrintClosure" }, |
| { "dart:_builtin", "::", "_getUriBaseClosure" }, |
| { "dart:_builtin", "::", "_resolveInWorkingDirectory" }, |
| { "dart:_builtin", "::", "_setWorkingDirectory" }, |
| { "dart:_builtin", "::", "_setPackageRoot" }, |
| { "dart:_builtin", "::", "_libraryFilePath" }, |
| { "dart:io", "::", "_makeUint8ListView" }, |
| { "dart:io", "::", "_makeDatagram" }, |
| { "dart:io", "::", "_setupHooks" }, |
| { "dart:io", "::", "_getWatchSignalInternal" }, |
| { "dart:io", "CertificateException", "CertificateException." }, |
| { "dart:io", "Directory", "Directory." }, |
| { "dart:io", "File", "File." }, |
| { "dart:io", "FileSystemException", "FileSystemException." }, |
| { "dart:io", "HandshakeException", "HandshakeException." }, |
| { "dart:io", "Link", "Link." }, |
| { "dart:io", "OSError", "OSError." }, |
| { "dart:io", "TlsException", "TlsException." }, |
| { "dart:io", "X509Certificate", "X509Certificate._" }, |
| { "dart:io", "_ExternalBuffer", "set:data" }, |
| { "dart:io", "_Platform", "set:_nativeScript" }, |
| { "dart:io", "_ProcessStartStatus", "set:_errorCode" }, |
| { "dart:io", "_ProcessStartStatus", "set:_errorMessage" }, |
| { "dart:io", "_SecureFilterImpl", "get:ENCRYPTED_SIZE" }, |
| { "dart:io", "_SecureFilterImpl", "get:SIZE" }, |
| { "dart:vmservice_io", "::", "main" }, |
| { NULL, NULL, NULL } // Must be terminated with NULL entries. |
| }; |
| |
| const bool reset_fields = gen_snapshot_kind == kAppAOT; |
| result = Dart_Precompile(standalone_entry_points, reset_fields); |
| CHECK_RESULT(result); |
| } |
| |
| if (gen_snapshot_kind == kAppAOT) { |
| GeneratePrecompiledSnapshot(); |
| } else { |
| if (Dart_IsNull(root_lib)) { |
| ErrorExit(kErrorExitCode, |
| "Unable to find root library for '%s'\n", |
| script_name); |
| } |
| |
| // The helper function _getMainClosure creates a closure for the main |
| // entry point which is either explicitly or implictly exported from the |
| // root library. |
| Dart_Handle main_closure = Dart_Invoke(isolate_data->builtin_lib(), |
| Dart_NewStringFromCString("_getMainClosure"), 0, NULL); |
| CHECK_RESULT(main_closure); |
| |
| // Call _startIsolate in the isolate library to enable dispatching the |
| // initial startup message. |
| const intptr_t kNumIsolateArgs = 2; |
| Dart_Handle isolate_args[kNumIsolateArgs]; |
| isolate_args[0] = main_closure; // entryPoint |
| isolate_args[1] = CreateRuntimeOptions(dart_options); // args |
| |
| Dart_Handle isolate_lib = |
| Dart_LookupLibrary(Dart_NewStringFromCString("dart:isolate")); |
| result = Dart_Invoke(isolate_lib, |
| Dart_NewStringFromCString("_startMainIsolate"), |
| kNumIsolateArgs, isolate_args); |
| CHECK_RESULT(result); |
| |
| // Keep handling messages until the last active receive port is closed. |
| result = Dart_RunLoop(); |
| // Generate an app snapshot after execution if specified. |
| if ((gen_snapshot_kind == kAppAfterRun) || |
| (gen_snapshot_kind == kAppJITAfterRun)) { |
| if (!Dart_IsCompilationError(result) && |
| !Dart_IsVMRestartRequest(result)) { |
| if (gen_snapshot_kind == kAppAfterRun) { |
| GenerateFullSnapshot(); |
| } else { |
| Dart_Handle prepare_result = Dart_PrecompileJIT(); |
| CHECK_RESULT(prepare_result); |
| GeneratePrecompiledJITSnapshot(); |
| } |
| } |
| } |
| CHECK_RESULT(result); |
| } |
| } |
| |
| Dart_ExitScope(); |
| // Shutdown the isolate. |
| Dart_ShutdownIsolate(); |
| |
| // No restart. |
| return false; |
| } |
| |
| #undef CHECK_RESULT |
| |
| |
| // Observatory assets are only needed in the regular dart binary. |
| #if !defined(DART_PRECOMPILER) |
| extern unsigned int observatory_assets_archive_len; |
| extern const uint8_t* observatory_assets_archive; |
| |
| |
| // |input| is assumed to be a gzipped stream. |
| // This function allocates the output buffer in the C heap and the caller |
| // is responsible for freeing it. |
| void Decompress(const uint8_t* input, unsigned int input_len, |
| uint8_t** output, unsigned int* output_length) { |
| ASSERT(input != NULL); |
| ASSERT(input_len > 0); |
| ASSERT(output != NULL); |
| ASSERT(output_length != NULL); |
| |
| // Initialize output. |
| *output = NULL; |
| *output_length = 0; |
| |
| const unsigned int kChunkSize = 256 * 1024; |
| uint8_t chunk_out[kChunkSize]; |
| z_stream strm; |
| strm.zalloc = Z_NULL; |
| strm.zfree = Z_NULL; |
| strm.opaque = Z_NULL; |
| strm.avail_in = 0; |
| strm.next_in = 0; |
| int ret = inflateInit2(&strm, 32 + MAX_WBITS); |
| ASSERT(ret == Z_OK); |
| |
| unsigned int input_cursor = 0; |
| unsigned int output_cursor = 0; |
| do { |
| // Setup input. |
| unsigned int size_in = input_len - input_cursor; |
| if (size_in > kChunkSize) { |
| size_in = kChunkSize; |
| } |
| strm.avail_in = size_in; |
| strm.next_in = const_cast<uint8_t*>(&input[input_cursor]); |
| |
| // Inflate until we've exhausted the current input chunk. |
| do { |
| // Setup output. |
| strm.avail_out = kChunkSize; |
| strm.next_out = &chunk_out[0]; |
| // Inflate. |
| ret = inflate(&strm, Z_SYNC_FLUSH); |
| // We either hit the end of the stream or made forward progress. |
| ASSERT((ret == Z_STREAM_END) || (ret == Z_OK)); |
| // Grow output buffer size. |
| unsigned int size_out = kChunkSize - strm.avail_out; |
| *output_length += size_out; |
| *output = reinterpret_cast<uint8_t*>(realloc(*output, *output_length)); |
| // Copy output. |
| memmove(&((*output)[output_cursor]), &chunk_out[0], size_out); |
| output_cursor += size_out; |
| } while (strm.avail_out == 0); |
| |
| // We've processed size_in bytes. |
| input_cursor += size_in; |
| |
| // We're finished decompressing when zlib tells us. |
| } while (ret != Z_STREAM_END); |
| |
| inflateEnd(&strm); |
| } |
| |
| |
| Dart_Handle GetVMServiceAssetsArchiveCallback() { |
| uint8_t* decompressed = NULL; |
| unsigned int decompressed_len = 0; |
| Decompress(observatory_assets_archive, |
| observatory_assets_archive_len, |
| &decompressed, |
| &decompressed_len); |
| Dart_Handle tar_file = DartUtils::MakeUint8Array(decompressed, |
| decompressed_len); |
| // Free decompressed memory as it has been copied into a Dart array. |
| free(decompressed); |
| return tar_file; |
| } |
| #else // !defined(DART_PRECOMPILER) |
| static Dart_GetVMServiceAssetsArchive GetVMServiceAssetsArchiveCallback = NULL; |
| #endif // !defined(DART_PRECOMPILER) |
| |
| |
| void main(int argc, char** argv) { |
| char* script_name; |
| const int EXTRA_VM_ARGUMENTS = 2; |
| CommandLineOptions vm_options(argc + EXTRA_VM_ARGUMENTS); |
| CommandLineOptions dart_options(argc); |
| bool print_flags_seen = false; |
| bool verbose_debug_seen = false; |
| |
| vm_options.AddArgument("--no_write_protect_code"); |
| // Perform platform specific initialization. |
| if (!Platform::Initialize()) { |
| Log::PrintErr("Initialization failed\n"); |
| } |
| |
| // On Windows, the argv strings are code page encoded and not |
| // utf8. We need to convert them to utf8. |
| bool argv_converted = ShellUtils::GetUtf8Argv(argc, argv); |
| |
| // Parse command line arguments. |
| if (ParseArguments(argc, |
| argv, |
| &vm_options, |
| &script_name, |
| &dart_options, |
| &print_flags_seen, |
| &verbose_debug_seen) < 0) { |
| if (help_option) { |
| PrintUsage(); |
| Platform::Exit(0); |
| } else if (version_option) { |
| PrintVersion(); |
| Platform::Exit(0); |
| } else if (print_flags_seen) { |
| // Will set the VM flags, print them out and then we exit as no |
| // script was specified on the command line. |
| Dart_SetVMFlags(vm_options.count(), vm_options.arguments()); |
| Platform::Exit(0); |
| } else { |
| PrintUsage(); |
| Platform::Exit(kErrorExitCode); |
| } |
| } |
| |
| Thread::InitOnce(); |
| |
| if (!DartUtils::SetOriginalWorkingDirectory()) { |
| OSError err; |
| fprintf(stderr, "Error determining current directory: %s\n", err.message()); |
| fflush(stderr); |
| Platform::Exit(kErrorExitCode); |
| } |
| |
| #if !defined(PRODUCT) && !defined(DART_PRECOMPILED_RUNTIME) |
| // Constant true if PRODUCT or DART_PRECOMPILED_RUNTIME. |
| if ((gen_snapshot_kind != kNone) || run_app_snapshot) { |
| vm_options.AddArgument("--load_deferred_eagerly"); |
| } |
| #endif |
| |
| if ((gen_snapshot_kind == kAppAOT) || is_noopt) { |
| vm_options.AddArgument("--precompilation"); |
| } |
| #if defined(DART_PRECOMPILED_RUNTIME) |
| vm_options.AddArgument("--precompilation"); |
| #endif |
| |
| Dart_SetVMFlags(vm_options.count(), vm_options.arguments()); |
| |
| // Start event handler. |
| TimerUtils::InitOnce(); |
| EventHandler::Start(); |
| |
| const uint8_t* instructions_snapshot = NULL; |
| const uint8_t* data_snapshot = NULL; |
| if (run_app_snapshot) { |
| ReadSnapshotFile(snapshot_filename, kVMIsolateSuffix, |
| &vm_isolate_snapshot_buffer); |
| ReadSnapshotFile(snapshot_filename, kIsolateSuffix, |
| &isolate_snapshot_buffer); |
| if (use_blobs) { |
| ReadExecutableSnapshotFile(snapshot_filename, |
| kInstructionsSuffix, |
| &instructions_snapshot); |
| ReadSnapshotFile(snapshot_filename, kRODataSuffix, |
| &data_snapshot); |
| } else { |
| instructions_snapshot = reinterpret_cast<const uint8_t*>( |
| LoadLibrarySymbol(snapshot_filename, |
| kPrecompiledLibraryName, |
| kPrecompiledInstructionsSymbolName)); |
| data_snapshot = reinterpret_cast<const uint8_t*>( |
| LoadLibrarySymbol(snapshot_filename, |
| kPrecompiledLibraryName, |
| kPrecompiledDataSymbolName)); |
| } |
| } |
| |
| // Initialize the Dart VM. |
| char* error = Dart_Initialize( |
| vm_isolate_snapshot_buffer, instructions_snapshot, data_snapshot, |
| CreateIsolateAndSetup, NULL, NULL, ShutdownIsolate, |
| NULL, |
| DartUtils::OpenFile, |
| DartUtils::ReadFile, |
| DartUtils::WriteFile, |
| DartUtils::CloseFile, |
| DartUtils::EntropySource, |
| GetVMServiceAssetsArchiveCallback); |
| if (error != NULL) { |
| if (do_vm_shutdown) { |
| EventHandler::Stop(); |
| } |
| fprintf(stderr, "VM initialization failed: %s\n", error); |
| fflush(stderr); |
| free(error); |
| Platform::Exit(kErrorExitCode); |
| } |
| |
| Dart_RegisterIsolateServiceRequestCallback( |
| "getIO", &ServiceGetIOHandler, NULL); |
| Dart_SetServiceStreamCallbacks(&ServiceStreamListenCallback, |
| &ServiceStreamCancelCallback); |
| |
| // Run the main isolate until we aren't told to restart. |
| while (RunMainIsolate(script_name, &dart_options)) { |
| Log::PrintErr("Restarting VM\n"); |
| } |
| |
| // Terminate process exit-code handler. |
| Process::TerminateExitCodeHandler(); |
| |
| error = Dart_Cleanup(); |
| if (error != NULL) { |
| Log::PrintErr("VM cleanup failed: %s\n", error); |
| free(error); |
| } |
| if (do_vm_shutdown) { |
| EventHandler::Stop(); |
| } |
| |
| // Free copied argument strings if converted. |
| if (argv_converted) { |
| for (int i = 0; i < argc; i++) { |
| free(argv[i]); |
| } |
| } |
| |
| // Free environment if any. |
| if (environment != NULL) { |
| for (HashMap::Entry* p = environment->Start(); |
| p != NULL; |
| p = environment->Next(p)) { |
| free(p->key); |
| free(p->value); |
| } |
| delete environment; |
| } |
| |
| Platform::Exit(Process::GlobalExitCode()); |
| } |
| |
| } // namespace bin |
| } // namespace dart |
| |
| int main(int argc, char** argv) { |
| dart::bin::main(argc, argv); |
| UNREACHABLE(); |
| } |
