blob: 668be833a27d97923a11ca8ee2378766e258d466 [file] [log] [blame]
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <stddef.h>
#include <stdlib.h>
#include <memory>
#include <utility>
#include "base/lazy_instance.h"
#include "base/message_loop/message_loop.h"
#include "base/metrics/histogram_macros.h"
#include "base/metrics/statistics_recorder.h"
#include "base/rand_util.h"
#include "base/run_loop.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/stringprintf.h"
#include "base/third_party/dynamic_annotations/dynamic_annotations.h"
#include "base/threading/platform_thread.h"
#include "base/trace_event/trace_event.h"
#include "build/build_config.h"
#include "content/child/child_process.h"
#include "content/common/content_constants_internal.h"
#include "content/common/gpu_host_messages.h"
#include "content/common/sandbox_linux/sandbox_linux.h"
#include "content/gpu/gpu_child_thread.h"
#include "content/gpu/gpu_process.h"
#include "content/public/common/content_client.h"
#include "content/public/common/content_switches.h"
#include "content/public/common/main_function_params.h"
#include "content/public/common/result_codes.h"
#include "gpu/command_buffer/service/gpu_switches.h"
#include "gpu/config/gpu_driver_bug_list.h"
#include "gpu/config/gpu_info_collector.h"
#include "gpu/config/gpu_switches.h"
#include "gpu/config/gpu_util.h"
#include "gpu/ipc/common/gpu_memory_buffer_support.h"
#include "gpu/ipc/service/gpu_config.h"
#include "gpu/ipc/service/gpu_init.h"
#include "gpu/ipc/service/gpu_memory_buffer_factory.h"
#include "gpu/ipc/service/gpu_watchdog_thread.h"
#include "ui/events/platform/platform_event_source.h"
#include "ui/gfx/switches.h"
#include "ui/gl/gl_context.h"
#include "ui/gl/gl_implementation.h"
#include "ui/gl/gl_surface.h"
#include "ui/gl/gl_switches.h"
#include "ui/gl/gpu_switching_manager.h"
#include "ui/gl/init/gl_factory.h"
#if defined(OS_WIN)
#include <windows.h>
#include <dwmapi.h>
#endif
#if defined(OS_ANDROID)
#include "base/trace_event/memory_dump_manager.h"
#include "components/tracing/common/graphics_memory_dump_provider_android.h"
#endif
#if defined(OS_WIN)
#include "base/win/scoped_com_initializer.h"
#include "base/win/windows_version.h"
#include "media/gpu/dxva_video_decode_accelerator_win.h"
#include "media/gpu/media_foundation_video_encode_accelerator_win.h"
#include "sandbox/win/src/sandbox.h"
#endif
#if defined(USE_X11)
#include "ui/base/x/x11_util.h" // nogncheck
#include "ui/gfx/x/x11_switches.h" // nogncheck
#endif
#if defined(OS_LINUX)
#include "content/public/common/sandbox_init.h"
#endif
#if defined(OS_MACOSX)
#include "base/message_loop/message_pump_mac.h"
#include "content/common/sandbox_mac.h"
#endif
#if defined(OS_CHROMEOS) && defined(ARCH_CPU_X86_FAMILY)
#include "media/gpu/vaapi_wrapper.h"
#endif
#if defined(SANITIZER_COVERAGE)
#include <sanitizer/common_interface_defs.h>
#include <sanitizer/coverage_interface.h>
#endif
namespace content {
namespace {
#if defined(OS_LINUX)
bool StartSandboxLinux(gpu::GpuWatchdogThread*);
#elif defined(OS_WIN)
bool StartSandboxWindows(const sandbox::SandboxInterfaceInfo*);
#endif
base::LazyInstance<GpuChildThread::DeferredMessages> deferred_messages =
LAZY_INSTANCE_INITIALIZER;
bool GpuProcessLogMessageHandler(int severity,
const char* file, int line,
size_t message_start,
const std::string& str) {
GpuChildThread::LogMessage log;
log.severity = severity;
log.header = str.substr(0, message_start);
log.message = str.substr(message_start);
deferred_messages.Get().push(std::move(log));
return false;
}
class ContentSandboxHelper : public gpu::GpuSandboxHelper {
public:
ContentSandboxHelper() {}
~ContentSandboxHelper() override {}
#if defined(OS_WIN)
void set_sandbox_info(const sandbox::SandboxInterfaceInfo* info) {
sandbox_info_ = info;
}
#endif
private:
// SandboxHelper:
void PreSandboxStartup() override {
// Warm up resources that don't need access to GPUInfo.
{
TRACE_EVENT0("gpu", "Warm up rand");
// Warm up the random subsystem, which needs to be done pre-sandbox on all
// platforms.
(void)base::RandUint64();
}
#if defined(OS_CHROMEOS) && defined(ARCH_CPU_X86_FAMILY)
media::VaapiWrapper::PreSandboxInitialization();
#endif
#if defined(OS_WIN)
media::DXVAVideoDecodeAccelerator::PreSandboxInitialization();
media::MediaFoundationVideoEncodeAccelerator::PreSandboxInitialization();
#endif
}
bool EnsureSandboxInitialized(
gpu::GpuWatchdogThread* watchdog_thread) override {
#if defined(OS_LINUX)
return StartSandboxLinux(watchdog_thread);
#elif defined(OS_WIN)
return StartSandboxWindows(sandbox_info_);
#elif defined(OS_MACOSX)
return Sandbox::SandboxIsCurrentlyActive();
#else
return false;
#endif
}
#if defined(OS_WIN)
const sandbox::SandboxInterfaceInfo* sandbox_info_ = nullptr;
#endif
DISALLOW_COPY_AND_ASSIGN(ContentSandboxHelper);
};
} // namespace
// Main function for starting the Gpu process.
int GpuMain(const MainFunctionParams& parameters) {
TRACE_EVENT0("gpu", "GpuMain");
base::trace_event::TraceLog::GetInstance()->SetProcessName("GPU Process");
base::trace_event::TraceLog::GetInstance()->SetProcessSortIndex(
kTraceEventGpuProcessSortIndex);
const base::CommandLine& command_line = parameters.command_line;
if (command_line.HasSwitch(switches::kGpuStartupDialog)) {
ChildProcess::WaitForDebugger("Gpu");
}
base::Time start_time = base::Time::Now();
#if defined(OS_WIN)
// Prevent Windows from displaying a modal dialog on failures like not being
// able to load a DLL.
SetErrorMode(
SEM_FAILCRITICALERRORS |
SEM_NOGPFAULTERRORBOX |
SEM_NOOPENFILEERRORBOX);
#elif defined(USE_X11)
ui::SetDefaultX11ErrorHandlers();
#endif
logging::SetLogMessageHandler(GpuProcessLogMessageHandler);
// We are experiencing what appear to be memory-stomp issues in the GPU
// process. These issues seem to be impacting the message loop and listeners
// registered to it. Create the message loop on the heap to guard against
// this.
// TODO(ericrk): Revisit this once we assess its impact on crbug.com/662802
// and crbug.com/609252.
std::unique_ptr<base::MessageLoop> main_message_loop;
std::unique_ptr<ui::PlatformEventSource> event_source;
if (command_line.HasSwitch(switches::kHeadless)) {
main_message_loop.reset(
new base::MessageLoop(base::MessageLoop::TYPE_DEFAULT));
} else {
#if defined(OS_WIN)
// OK to use default non-UI message loop because all GPU windows run on
// dedicated thread.
main_message_loop.reset(
new base::MessageLoop(base::MessageLoop::TYPE_DEFAULT));
#elif defined(USE_X11)
// We need a UI loop so that we can grab the Expose events. See GLSurfaceGLX
// and https://crbug.com/326995.
main_message_loop.reset(new base::MessageLoop(base::MessageLoop::TYPE_UI));
event_source = ui::PlatformEventSource::CreateDefault();
#elif defined(USE_OZONE) && defined(OZONE_X11)
// If we might be running Ozone X11 we need a UI loop to grab Expose events.
// See GLSurfaceGLX and https://crbug.com/326995.
main_message_loop.reset(new base::MessageLoop(base::MessageLoop::TYPE_UI));
#elif defined(USE_OZONE)
main_message_loop.reset(
new base::MessageLoop(base::MessageLoop::TYPE_DEFAULT));
#elif defined(OS_LINUX)
#error "Unsupported Linux platform."
#elif defined(OS_MACOSX)
// This is necessary for CoreAnimation layers hosted in the GPU process to
// be drawn. See http://crbug.com/312462.
std::unique_ptr<base::MessagePump> pump(new base::MessagePumpCFRunLoop());
main_message_loop.reset(new base::MessageLoop(std::move(pump)));
#else
main_message_loop.reset(
new base::MessageLoop(base::MessageLoop::TYPE_DEFAULT));
#endif
}
base::PlatformThread::SetName("CrGpuMain");
// Initializes StatisticsRecorder which tracks UMA histograms.
base::StatisticsRecorder::Initialize();
#if defined(OS_ANDROID) || defined(OS_CHROMEOS)
// Set thread priority before sandbox initialization.
base::PlatformThread::SetCurrentThreadPriority(base::ThreadPriority::DISPLAY);
#endif
gpu::GpuInit gpu_init;
ContentSandboxHelper sandbox_helper;
#if defined(OS_WIN)
sandbox_helper.set_sandbox_info(parameters.sandbox_info);
#endif
gpu_init.set_sandbox_helper(&sandbox_helper);
// Gpu initialization may fail for various reasons, in which case we will need
// to tear down this process. However, we can not do so safely until the IPC
// channel is set up, because the detection of early return of a child process
// is implemented using an IPC channel error. If the IPC channel is not fully
// set up between the browser and GPU process, and the GPU process crashes or
// exits early, the browser process will never detect it. For this reason we
// defer tearing down the GPU process until receiving the GpuMsg_Initialize
// message from the browser.
const bool init_success = gpu_init.InitializeAndStartSandbox(command_line);
const bool dead_on_arrival = !init_success;
logging::SetLogMessageHandler(NULL);
GetContentClient()->SetGpuInfo(gpu_init.gpu_info());
std::unique_ptr<gpu::GpuMemoryBufferFactory> gpu_memory_buffer_factory;
if (init_success &&
gpu::GetNativeGpuMemoryBufferType() != gfx::EMPTY_BUFFER)
gpu_memory_buffer_factory = gpu::GpuMemoryBufferFactory::CreateNativeType();
base::ThreadPriority io_thread_priority = base::ThreadPriority::NORMAL;
#if defined(OS_ANDROID) || defined(OS_CHROMEOS)
io_thread_priority = base::ThreadPriority::DISPLAY;
#endif
GpuProcess gpu_process(io_thread_priority);
GpuChildThread* child_thread = new GpuChildThread(
gpu_init.TakeWatchdogThread(), dead_on_arrival, gpu_init.gpu_info(),
deferred_messages.Get(), gpu_memory_buffer_factory.get());
while (!deferred_messages.Get().empty())
deferred_messages.Get().pop();
child_thread->Init(start_time);
gpu_process.set_main_thread(child_thread);
if (child_thread->watchdog_thread())
child_thread->watchdog_thread()->AddPowerObserver();
#if defined(OS_ANDROID)
base::trace_event::MemoryDumpManager::GetInstance()->RegisterDumpProvider(
tracing::GraphicsMemoryDumpProvider::GetInstance(), "AndroidGraphics",
nullptr);
#endif
{
TRACE_EVENT0("gpu", "Run Message Loop");
base::RunLoop().Run();
}
return dead_on_arrival ? RESULT_CODE_GPU_DEAD_ON_ARRIVAL : 0;
}
namespace {
#if defined(OS_LINUX)
bool StartSandboxLinux(gpu::GpuWatchdogThread* watchdog_thread) {
TRACE_EVENT0("gpu,startup", "Initialize sandbox");
bool res = false;
if (watchdog_thread) {
// LinuxSandbox needs to be able to ensure that the thread
// has really been stopped.
LinuxSandbox::StopThread(watchdog_thread);
}
#if defined(SANITIZER_COVERAGE)
const std::string sancov_file_name =
"gpu." + base::Uint64ToString(base::RandUint64());
LinuxSandbox* linux_sandbox = LinuxSandbox::GetInstance();
linux_sandbox->sanitizer_args()->coverage_sandboxed = 1;
linux_sandbox->sanitizer_args()->coverage_fd =
__sanitizer_maybe_open_cov_file(sancov_file_name.c_str());
linux_sandbox->sanitizer_args()->coverage_max_block_size = 0;
#endif
// LinuxSandbox::InitializeSandbox() must always be called
// with only one thread.
res = LinuxSandbox::InitializeSandbox();
if (watchdog_thread) {
base::Thread::Options options;
options.timer_slack = base::TIMER_SLACK_MAXIMUM;
watchdog_thread->StartWithOptions(options);
}
return res;
}
#endif // defined(OS_LINUX)
#if defined(OS_WIN)
bool StartSandboxWindows(const sandbox::SandboxInterfaceInfo* sandbox_info) {
TRACE_EVENT0("gpu,startup", "Lower token");
// For Windows, if the target_services interface is not zero, the process
// is sandboxed and we must call LowerToken() before rendering untrusted
// content.
sandbox::TargetServices* target_services = sandbox_info->target_services;
if (target_services) {
target_services->LowerToken();
return true;
}
return false;
}
#endif // defined(OS_WIN)
} // namespace.
} // namespace content