1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "base/command_line.h" 6 #include "base/debug/leak_annotations.h" 7 #include "base/message_loop/message_loop.h" 8 #include "base/threading/platform_thread.h" 9 #include "base/timer/hi_res_timer_manager.h" 10 #include "content/child/child_process.h" 11 #include "content/common/sandbox_linux/sandbox_linux.h" 12 #include "content/public/common/content_switches.h" 13 #include "content/public/common/main_function_params.h" 14 #include "content/public/common/sandbox_init.h" 15 #include "content/utility/utility_thread_impl.h" 16 17 #if defined(OS_WIN) 18 #include "sandbox/win/src/sandbox.h" 19 #endif 20 21 #if defined(TOOLKIT_GTK) 22 #include <gtk/gtk.h> 23 24 #include "ui/gfx/gtk_util.h" 25 #endif 26 27 namespace content { 28 29 // Mainline routine for running as the utility process. 30 int UtilityMain(const MainFunctionParams& parameters) { 31 // The main message loop of the utility process. 32 base::MessageLoop main_message_loop; 33 base::PlatformThread::SetName("CrUtilityMain"); 34 35 #if defined(OS_LINUX) 36 // Initializes the sandbox before any threads are created. 37 // TODO(jorgelo): move this after GTK initialization when we enable a strict 38 // Seccomp-BPF policy. 39 LinuxSandbox::InitializeSandbox(); 40 #endif 41 42 #if defined(OS_POSIX) 43 // The utility process is used to load plugins (see OnLoadPlugins() in 44 // utility_thread_impl.cc). Some plugins expect the browser to have loaded 45 // GLib/GTK. 46 // Due to bugs in GLib we need to initialize GLib/GTK before we start threads, 47 // see crbug.com/309093. 48 49 #if defined(TOOLKIT_GTK) 50 bool is_sandboxed = false; 51 52 #if defined(OS_LINUX) 53 // On Linux, we only initialize GLib/GTK if we're not sandboxed. 54 is_sandboxed = !parameters.command_line.HasSwitch(switches::kNoSandbox); 55 #endif 56 57 if (!is_sandboxed) { 58 // g_thread_init() is deprecated since glib 2.31.0, please see release note: 59 // http://mail.gnome.org/archives/gnome-announce-list/2011-October/msg00041.html 60 #if !(GLIB_CHECK_VERSION(2, 31, 0)) 61 if (!g_thread_get_initialized()) { 62 g_thread_init(NULL); 63 } 64 #endif 65 gfx::GtkInitFromCommandLine(*CommandLine::ForCurrentProcess()); 66 } 67 #endif 68 #endif 69 70 ChildProcess utility_process; 71 utility_process.set_main_thread(new UtilityThreadImpl()); 72 73 base::HighResolutionTimerManager hi_res_timer_manager; 74 75 #if defined(OS_WIN) 76 bool no_sandbox = parameters.command_line.HasSwitch(switches::kNoSandbox); 77 if (!no_sandbox) { 78 sandbox::TargetServices* target_services = 79 parameters.sandbox_info->target_services; 80 if (!target_services) 81 return false; 82 target_services->LowerToken(); 83 } 84 #endif 85 86 base::MessageLoop::current()->Run(); 87 88 #if defined(LEAK_SANITIZER) 89 // Invoke LeakSanitizer before shutting down the utility thread, to avoid 90 // reporting shutdown-only leaks. 91 __lsan_do_leak_check(); 92 #endif 93 94 return 0; 95 } 96 97 } // namespace content 98
