| // 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/dbg_connection.h" |
| #include "bin/directory.h" |
| #include "bin/eventhandler.h" |
| #include "bin/extensions.h" |
| #include "bin/file.h" |
| #include "bin/isolate_data.h" |
| #include "bin/log.h" |
| #include "bin/platform.h" |
| #include "bin/process.h" |
| #include "bin/thread.h" |
| #include "bin/vmservice_impl.h" |
| #include "platform/globals.h" |
| #include "platform/hashmap.h" |
| |
| 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 that stores a pointer to the application script snapshot. |
| static bool generate_script_snapshot = false; |
| static const char* snapshot_filename = NULL; |
| |
| |
| // Global state that indicates whether there is a debug breakpoint. |
| // This pointer points into an argv buffer and does not need to be |
| // free'd. |
| static const char* breakpoint_at = NULL; |
| |
| |
| // Global state that indicates whether we should open a connection |
| // and listen for a debugger to connect. |
| static bool start_debugger = false; |
| static const char* debug_ip = NULL; |
| static int debug_port = -1; |
| static const char* DEFAULT_DEBUG_IP = "127.0.0.1"; |
| static const int DEFAULT_DEBUG_PORT = 5858; |
| |
| // 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 has_compile_all = false; |
| |
| |
| // Global flag that is used to indicate that we want to compile all the |
| // dart functions before running main and not compile anything thereafter. |
| static bool has_gen_precompiled_snapshot = false; |
| |
| |
| // Global flag that is used to indicate that we want to run from a precompiled |
| // snapshot. |
| static bool has_run_precompiled_snapshot = false; |
| |
| |
| extern const char* kPrecompiledLibraryName; |
| extern const char* kPrecompiledSymbolName; |
| static const char* kPrecompiledVmIsolateName = "precompiled.vmisolate"; |
| static const char* kPrecompiledIsolateName = "precompiled.isolate"; |
| static const char* kPrecompiledInstructionsName = "precompiled.S"; |
| |
| |
| // 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 has_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 bool start_vm_service = false; |
| 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; |
| |
| extern bool do_vm_shutdown; // Defined in bin/process.cc |
| 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) { |
| DebuggerConnectionHandler::StopHandler(); |
| EventHandler::Stop(); |
| } |
| 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 has_version_option = false; |
| static bool ProcessVersionOption(const char* arg, |
| CommandLineOptions* vm_options) { |
| if (*arg != '\0') { |
| return false; |
| } |
| has_version_option = true; |
| return true; |
| } |
| |
| |
| static bool has_help_option = false; |
| static bool ProcessHelpOption(const char* arg, CommandLineOptions* vm_options) { |
| if (*arg != '\0') { |
| return false; |
| } |
| has_help_option = true; |
| return true; |
| } |
| |
| |
| static bool has_verbose_option = false; |
| static bool ProcessVerboseOption(const char* arg, |
| CommandLineOptions* vm_options) { |
| if (*arg != '\0') { |
| return false; |
| } |
| has_verbose_option = true; |
| return true; |
| } |
| |
| |
| static bool ProcessBreakpointOption(const char* funcname, |
| CommandLineOptions* vm_options) { |
| ASSERT(funcname != NULL); |
| if (*funcname == '\0') { |
| return false; |
| } |
| breakpoint_at = funcname; |
| return true; |
| } |
| |
| |
| static bool ProcessPackageRootOption(const char* arg, |
| CommandLineOptions* vm_options) { |
| ASSERT(arg != NULL); |
| if (*arg == '\0' || *arg == '-') { |
| return false; |
| } |
| commandline_package_root = arg; |
| return true; |
| } |
| |
| |
| static bool ProcessPackagesOption(const char* arg, |
| CommandLineOptions* vm_options) { |
| ASSERT(arg != NULL); |
| if (*arg == '\0' || *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; |
| } |
| has_compile_all = true; |
| return true; |
| } |
| |
| |
| static bool ProcessGenPrecompiledSnapshotOption( |
| const char* arg, |
| CommandLineOptions* vm_options) { |
| ASSERT(arg != NULL); |
| if (*arg != '\0') { |
| return false; |
| } |
| // Ensure that we are not already running using a full snapshot. |
| if (isolate_snapshot_buffer != NULL) { |
| Log::PrintErr("Precompiled snapshots must be generated with" |
| " dart_no_snapshot."); |
| return false; |
| } |
| has_gen_precompiled_snapshot = true; |
| vm_options->AddArgument("--precompile"); |
| return true; |
| } |
| |
| |
| static bool ProcessRunPrecompiledSnapshotOption( |
| const char* arg, |
| CommandLineOptions* vm_options) { |
| ASSERT(arg != NULL); |
| if (*arg != '\0') { |
| return false; |
| } |
| has_run_precompiled_snapshot = true; |
| vm_options->AddArgument("--precompile"); |
| return true; |
| } |
| |
| |
| static bool ProcessDebugOption(const char* option_value, |
| CommandLineOptions* vm_options) { |
| ASSERT(option_value != NULL); |
| if (!ExtractPortAndIP(option_value, &debug_port, &debug_ip, |
| DEFAULT_DEBUG_PORT, DEFAULT_DEBUG_IP)) { |
| Log::PrintErr("unrecognized --debug option syntax. " |
| "Use --debug[:<port number>[/<IPv4 address>]]\n"); |
| return false; |
| } |
| |
| breakpoint_at = "main"; |
| start_debugger = true; |
| return true; |
| } |
| |
| |
| static bool ProcessGenScriptSnapshotOption(const char* filename, |
| CommandLineOptions* vm_options) { |
| if (filename != NULL && strlen(filename) != 0) { |
| // Ensure that we are already running using a full snapshot. |
| if (isolate_snapshot_buffer == NULL) { |
| Log::PrintErr("Script snapshots cannot be generated in this version of" |
| " dart\n"); |
| return false; |
| } |
| snapshot_filename = filename; |
| generate_script_snapshot = true; |
| return true; |
| } |
| return false; |
| } |
| |
| |
| 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; |
| } |
| |
| start_vm_service = true; |
| 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; |
| } |
| |
| start_vm_service = true; |
| |
| vm_options->AddArgument("--pause-isolates-on-exit"); |
| return true; |
| } |
| |
| |
| extern bool trace_debug_protocol; |
| static bool ProcessTraceDebugProtocolOption(const char* arg, |
| CommandLineOptions* vm_options) { |
| if (*arg != '\0') { |
| return false; |
| } |
| trace_debug_protocol = true; |
| return true; |
| } |
| |
| |
| static bool ProcessTraceLoadingOption(const char* arg, |
| CommandLineOptions* vm_options) { |
| if (*arg != '\0') { |
| return false; |
| } |
| has_trace_loading = true; |
| 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. |
| { "--break-at=", ProcessBreakpointOption }, |
| { "--compile_all", ProcessCompileAllOption }, |
| { "--debug", ProcessDebugOption }, |
| { "--enable-vm-service", ProcessEnableVmServiceOption }, |
| { "--gen-precompiled-snapshot", ProcessGenPrecompiledSnapshotOption }, |
| { "--observe", ProcessObserveOption }, |
| { "--run-precompiled-snapshot", ProcessRunPrecompiledSnapshotOption }, |
| { "--shutdown", ProcessShutdownOption }, |
| { "--snapshot=", ProcessGenScriptSnapshotOption }, |
| { "--trace-debug-protocol", ProcessTraceDebugProtocolOption }, |
| { "--trace-loading", ProcessTraceLoadingOption }, |
| { 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."); |
| 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)); \ |
| *exit_code = Dart_IsCompilationError(result) ? kCompilationErrorExitCode : \ |
| (Dart_IsApiError(result) ? kApiErrorExitCode : 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_file, |
| Dart_IsolateFlags* flags, |
| char** error, |
| int* exit_code) { |
| ASSERT(script_uri != NULL); |
| IsolateData* isolate_data = new IsolateData(script_uri, |
| package_root, |
| packages_file); |
| Dart_Isolate isolate = NULL; |
| |
| 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(DartUtils::LibraryTagHandler); |
| CHECK_RESULT(result); |
| |
| if (Dart_IsServiceIsolate(isolate)) { |
| // If this is the service isolate, load embedder specific bits and return. |
| if (!VmService::Setup(vm_service_server_ip, vm_service_server_port)) { |
| *error = strdup(VmService::GetErrorMessage()); |
| return NULL; |
| } |
| if (has_compile_all) { |
| result = Dart_CompileAll(); |
| CHECK_RESULT(result); |
| } |
| Dart_ExitScope(); |
| Dart_ExitIsolate(); |
| return isolate; |
| } |
| |
| // Load the specified application script into the newly created isolate. |
| |
| // Prepare builtin and its dependent libraries for use to resolve URIs. |
| // The builtin library is part of the core snapshot and would already be |
| // available here in the case of script snapshot loading. |
| Dart_Handle builtin_lib = |
| Builtin::LoadAndCheckLibrary(Builtin::kBuiltinLibrary); |
| CHECK_RESULT(builtin_lib); |
| |
| // Prepare for script loading by setting up the 'print' and 'timer' |
| // closures and setting up 'package root' for URI resolution. |
| result = DartUtils::PrepareForScriptLoading(package_root, |
| packages_file, |
| false, |
| has_trace_loading, |
| builtin_lib); |
| CHECK_RESULT(result); |
| |
| result = Dart_SetEnvironmentCallback(EnvironmentCallback); |
| CHECK_RESULT(result); |
| |
| if (!has_run_precompiled_snapshot) { |
| // Load the script. |
| result = DartUtils::LoadScript(script_uri, builtin_lib); |
| CHECK_RESULT(result); |
| |
| // Run event-loop and wait for script loading to complete. |
| result = Dart_RunLoop(); |
| CHECK_RESULT(result); |
| |
| if (isolate_data->load_async_id >= 0) { |
| Dart_TimelineAsyncEnd("LoadScript", isolate_data->load_async_id); |
| } |
| |
| Platform::SetPackageRoot(package_root); |
| |
| 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, |
| 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); |
| IsolateData* parent_isolate_data = reinterpret_cast<IsolateData*>(data); |
| int exit_code = 0; |
| if (script_uri == NULL) { |
| if (data == NULL) { |
| *error = strdup("Invalid 'callback_data' - Unable to spawn new isolate"); |
| return NULL; |
| } |
| script_uri = parent_isolate_data->script_url; |
| if (script_uri == NULL) { |
| *error = strdup("Invalid 'callback_data' - Unable to spawn new isolate"); |
| return NULL; |
| } |
| } |
| const char* packages_file = NULL; |
| if (package_root == NULL) { |
| if (parent_isolate_data != NULL) { |
| package_root = parent_isolate_data->package_root; |
| packages_file = parent_isolate_data->packages_file; |
| } |
| } |
| return CreateIsolateAndSetupHelper(script_uri, |
| main, |
| package_root, |
| packages_file, |
| 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 (!has_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" |
| " Enable the VM service and cause isolates to pause on exit (default port is\n" |
| " 8181, default bind address is 127.0.0.1). With the default options,\n" |
| " Observatory will be available locally at http://127.0.0.1:8181/\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" |
| " Enable the VM service and cause isolates to pause on exit (default port is\n" |
| " 8181, default bind address is 127.0.0.1). With the default options,\n" |
| " Observatory will be available locally at http://127.0.0.1:8181/\n" |
| "--version\n" |
| " Print the VM version.\n" |
| "\n" |
| "--debug[:<port number>]\n" |
| " enables debugging and listens on specified port for debugger connections\n" |
| " (default port number is 5858)\n" |
| "\n" |
| "--break-at=<location>\n" |
| " sets a breakpoint at specified location where <location> is one of :\n" |
| " url:<line_num> e.g. test.dart:10\n" |
| " [<class_name>.]<function_name> e.g. B.foo\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 number>]\n" |
| " enables the VM service and listens on specified port for connections\n" |
| " (default port number is 8181)\n" |
| "\n" |
| "--noopt\n" |
| " run unoptimized code only\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); |
| } |
| } |
| |
| |
| static Dart_Handle SetBreakpoint(const char* breakpoint_at, |
| Dart_Handle library) { |
| char* bpt_function = strdup(breakpoint_at); |
| Dart_Handle class_name; |
| Dart_Handle function_name; |
| char* dot = strchr(bpt_function, '.'); |
| if (dot == NULL) { |
| class_name = DartUtils::NewString(""); |
| function_name = DartUtils::NewString(breakpoint_at); |
| } else { |
| *dot = '\0'; |
| class_name = DartUtils::NewString(bpt_function); |
| function_name = DartUtils::NewString(dot + 1); |
| } |
| free(bpt_function); |
| return Dart_OneTimeBreakAtEntry(library, class_name, function_name); |
| } |
| |
| |
| 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 DartExitOnError(Dart_Handle error) { |
| if (!Dart_IsError(error)) { |
| return; |
| } |
| const int exit_code = Dart_IsCompilationError(error) ? |
| kCompilationErrorExitCode : kErrorExitCode; |
| ErrorExit(exit_code, "%s\n", Dart_GetError(error)); |
| } |
| |
| |
| static void ShutdownIsolate(void* callback_data) { |
| IsolateData* isolate_data = reinterpret_cast<IsolateData*>(callback_data); |
| delete isolate_data; |
| } |
| |
| |
| static const char* ServiceRequestError(Dart_Handle error) { |
| TextBuffer buffer(128); |
| buffer.Printf("{\"type\":\"Error\",\"text\":\"Internal error %s\"}", |
| Dart_GetError(error)); |
| return buffer.Steal(); |
| } |
| |
| |
| class DartScope { |
| public: |
| DartScope() { Dart_EnterScope(); } |
| ~DartScope() { Dart_ExitScope(); } |
| }; |
| |
| |
| static const char* ServiceGetIOHandler( |
| const char* method, |
| const char** param_keys, |
| const char** param_values, |
| intptr_t num_params, |
| void* user_data) { |
| 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)) return ServiceRequestError(dart_io_str); |
| Dart_Handle io_lib = Dart_LookupLibrary(dart_io_str); |
| if (Dart_IsError(io_lib)) return ServiceRequestError(io_lib); |
| Dart_Handle handler_function_name = |
| Dart_NewStringFromCString("_serviceObjectHandler"); |
| if (Dart_IsError(handler_function_name)) { |
| return ServiceRequestError(handler_function_name); |
| } |
| // 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)) return ServiceRequestError(result); |
| const char *json; |
| result = Dart_StringToCString(result, &json); |
| if (Dart_IsError(result)) return ServiceRequestError(result); |
| return strdup(json); |
| } |
| |
| |
| extern bool capture_stdio; |
| extern bool capture_stdout; |
| extern bool capture_stderr; |
| static const char* kStdoutStreamId = "Stdout"; |
| static const char* kStderrStreamId = "Stderr"; |
| |
| |
| static bool ServiceStreamListenCallback(const char* stream_id) { |
| if (strcmp(stream_id, kStdoutStreamId) == 0) { |
| capture_stdio = true; |
| capture_stdout = true; |
| return true; |
| } else if (strcmp(stream_id, kStderrStreamId) == 0) { |
| capture_stdio = true; |
| capture_stderr = true; |
| return true; |
| } |
| return false; |
| } |
| |
| |
| static void ServiceStreamCancelCallback(const char* stream_id) { |
| if (strcmp(stream_id, kStdoutStreamId) == 0) { |
| capture_stdout = false; |
| } else if (strcmp(stream_id, kStderrStreamId) == 0) { |
| capture_stderr = false; |
| } |
| capture_stdio = (capture_stdout || capture_stderr); |
| } |
| |
| |
| static void WriteSnapshotFile(const char* filename, |
| const uint8_t* buffer, |
| const intptr_t size) { |
| File* file = File::Open(filename, File::kWriteTruncate); |
| ASSERT(file != NULL); |
| if (!file->WriteFully(buffer, size)) { |
| ErrorExit(kErrorExitCode, |
| "Unable to open file %s for writing snapshot\n", |
| filename); |
| } |
| delete file; |
| } |
| |
| |
| static void ReadSnapshotFile(const char* filename, |
| const uint8_t** buffer) { |
| void* file = DartUtils::OpenFile(filename, false); |
| if (file == NULL) { |
| ErrorExit(kErrorExitCode, |
| "Error: Unable to open file %s for reading snapshot\n", filename); |
| } |
| intptr_t len = -1; |
| DartUtils::ReadFile(buffer, &len, file); |
| if (*buffer == NULL || len == -1) { |
| ErrorExit(kErrorExitCode, |
| "Error: Unable to read snapshot file %s\n", filename); |
| } |
| DartUtils::CloseFile(file); |
| } |
| |
| |
| static void* LoadLibrarySymbol(const char* libname, const char* symname) { |
| void* library = Extensions::LoadExtensionLibrary(libname); |
| if (library == NULL) { |
| ErrorExit(kErrorExitCode, |
| "Error: Failed to load library '%s'\n", libname); |
| } |
| void* symbol = Extensions::ResolveSymbol(library, symname); |
| if (symbol == NULL) { |
| ErrorExit(kErrorExitCode, |
| "Error: Failed to load symbol '%s'\n", symname); |
| } |
| return symbol; |
| } |
| |
| |
| 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 (has_help_option) { |
| PrintUsage(); |
| exit(0); |
| } else if (has_version_option) { |
| PrintVersion(); |
| 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()); |
| exit(0); |
| } else { |
| PrintUsage(); |
| exit(kErrorExitCode); |
| } |
| } |
| |
| Thread::InitOnce(); |
| |
| if (!DartUtils::SetOriginalWorkingDirectory()) { |
| OSError err; |
| fprintf(stderr, "Error determining current directory: %s\n", err.message()); |
| fflush(stderr); |
| exit(kErrorExitCode); |
| } |
| |
| if (generate_script_snapshot) { |
| vm_options.AddArgument("--load_deferred_eagerly"); |
| } |
| |
| Dart_SetVMFlags(vm_options.count(), vm_options.arguments()); |
| |
| // Start event handler. |
| EventHandler::Start(); |
| |
| // Start the debugger wire protocol handler if necessary. |
| if (start_debugger) { |
| ASSERT(debug_port >= 0); |
| bool print_msg = verbose_debug_seen || (debug_port == 0); |
| debug_port = DebuggerConnectionHandler::StartHandler(debug_ip, debug_port); |
| if (print_msg) { |
| Log::Print("Debugger listening on port %d\n", debug_port); |
| } |
| } else { |
| DebuggerConnectionHandler::InitForVmService(); |
| } |
| |
| const uint8_t* instructions_snapshot = NULL; |
| if (has_run_precompiled_snapshot) { |
| instructions_snapshot = reinterpret_cast<const uint8_t*>( |
| LoadLibrarySymbol(kPrecompiledLibraryName, kPrecompiledSymbolName)); |
| ReadSnapshotFile(kPrecompiledVmIsolateName, &vm_isolate_snapshot_buffer); |
| ReadSnapshotFile(kPrecompiledIsolateName, &isolate_snapshot_buffer); |
| } |
| |
| // Initialize the Dart VM. |
| char* error = Dart_Initialize( |
| vm_isolate_snapshot_buffer, instructions_snapshot, |
| CreateIsolateAndSetup, NULL, NULL, ShutdownIsolate, |
| DartUtils::OpenFile, |
| DartUtils::ReadFile, |
| DartUtils::WriteFile, |
| DartUtils::CloseFile, |
| DartUtils::EntropySource); |
| if (error != NULL) { |
| if (do_vm_shutdown) { |
| DebuggerConnectionHandler::StopHandler(); |
| EventHandler::Stop(); |
| } |
| fprintf(stderr, "VM initialization failed: %s\n", error); |
| fflush(stderr); |
| free(error); |
| exit(kErrorExitCode); |
| } |
| |
| Dart_RegisterIsolateServiceRequestCallback( |
| "getIO", &ServiceGetIOHandler, NULL); |
| Dart_SetServiceStreamCallbacks(&ServiceStreamListenCallback, |
| &ServiceStreamCancelCallback); |
| |
| // Call CreateIsolateAndSetup which creates an isolate and loads up |
| // the specified application script. |
| 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) { |
| Log::PrintErr("%s\n", error); |
| free(error); |
| error = NULL; |
| delete [] isolate_name; |
| Process::TerminateExitCodeHandler(); |
| error = Dart_Cleanup(); |
| if (error != NULL) { |
| Log::PrintErr("VM cleanup failed: %s\n", error); |
| free(error); |
| } |
| if (do_vm_shutdown) { |
| DebuggerConnectionHandler::StopHandler(); |
| EventHandler::Stop(); |
| } |
| 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 (generate_script_snapshot) { |
| // First create a snapshot. |
| Dart_Handle result; |
| uint8_t* buffer = NULL; |
| intptr_t size = 0; |
| result = Dart_CreateScriptSnapshot(&buffer, &size); |
| DartExitOnError(result); |
| |
| // Open the snapshot file. |
| File* snapshot_file = File::Open(snapshot_filename, File::kWriteTruncate); |
| if (snapshot_file == NULL) { |
| ErrorExit(kErrorExitCode, |
| "Unable to open file %s for writing the snapshot\n", |
| snapshot_filename); |
| } |
| |
| // Write the magic number to indicate file is a script snapshot. |
| DartUtils::WriteMagicNumber(snapshot_file); |
| |
| // Now write the snapshot out to specified file. |
| bool bytes_written = snapshot_file->WriteFully(buffer, size); |
| ASSERT(bytes_written); |
| delete snapshot_file; |
| snapshot_file = NULL; |
| } 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. |
| Dart_Handle builtin_lib = |
| Builtin::LoadAndCheckLibrary(Builtin::kBuiltinLibrary); |
| ASSERT(!Dart_IsError(builtin_lib)); |
| result = Dart_LibraryImportLibrary(builtin_lib, root_lib, Dart_Null()); |
| |
| if (has_gen_precompiled_snapshot) { |
| result = Dart_Precompile(); |
| DartExitOnError(result); |
| |
| 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_buffer = NULL; |
| intptr_t instructions_size = 0; |
| result = Dart_CreatePrecompiledSnapshot(&vm_isolate_buffer, |
| &vm_isolate_size, |
| &isolate_buffer, |
| &isolate_size, |
| &instructions_buffer, |
| &instructions_size); |
| DartExitOnError(result); |
| WriteSnapshotFile(kPrecompiledVmIsolateName, |
| vm_isolate_buffer, |
| vm_isolate_size); |
| WriteSnapshotFile(kPrecompiledIsolateName, |
| isolate_buffer, |
| isolate_size); |
| WriteSnapshotFile(kPrecompiledInstructionsName, |
| instructions_buffer, |
| instructions_size); |
| } else { |
| if (has_compile_all) { |
| result = Dart_CompileAll(); |
| DartExitOnError(result); |
| } |
| |
| 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(builtin_lib, |
| Dart_NewStringFromCString("_getMainClosure"), 0, NULL); |
| DartExitOnError(main_closure); |
| |
| // Set debug breakpoint if specified on the command line before calling |
| // the main function. |
| if (breakpoint_at != NULL) { |
| result = SetBreakpoint(breakpoint_at, root_lib); |
| if (Dart_IsError(result)) { |
| ErrorExit(kErrorExitCode, |
| "Error setting breakpoint at '%s': %s\n", |
| breakpoint_at, |
| Dart_GetError(result)); |
| } |
| } |
| |
| // 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); |
| DartExitOnError(result); |
| |
| // Keep handling messages until the last active receive port is closed. |
| result = Dart_RunLoop(); |
| DartExitOnError(result); |
| } |
| } |
| |
| Dart_ExitScope(); |
| // Shutdown the isolate. |
| Dart_ShutdownIsolate(); |
| // 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) { |
| DebuggerConnectionHandler::StopHandler(); |
| 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; |
| } |
| |
| exit(Process::GlobalExitCode()); |
| } |
| |
| } // namespace bin |
| } // namespace dart |
| |
| int main(int argc, char** argv) { |
| dart::bin::main(argc, argv); |
| UNREACHABLE(); |
| } |
