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// Copyright 2013 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 "components/crash/content/browser/crash_dump_manager_android.h"
#include <stdint.h>
#include "base/bind.h"
#include "base/files/file_util.h"
#include "base/format_macros.h"
#include "base/logging.h"
#include "base/metrics/histogram_macros.h"
#include "base/posix/global_descriptors.h"
#include "base/process/process.h"
#include "base/rand_util.h"
#include "base/stl_util.h"
#include "base/strings/stringprintf.h"
#include "components/crash/content/app/breakpad_linux.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/child_process_data.h"
#include "content/public/browser/file_descriptor_info.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/notification_types.h"
#include "content/public/browser/render_process_host.h"
using content::BrowserThread;
namespace breakpad {
CrashDumpManager::CrashDumpManager(const base::FilePath& crash_dump_dir,
int descriptor_id)
: crash_dump_dir_(crash_dump_dir), descriptor_id_(descriptor_id) {}
CrashDumpManager::~CrashDumpManager() {
}
void CrashDumpManager::OnChildStart(int child_process_id,
content::FileDescriptorInfo* mappings) {
DCHECK_CURRENTLY_ON(BrowserThread::PROCESS_LAUNCHER);
if (!breakpad::IsCrashReporterEnabled())
return;
base::FilePath minidump_path;
if (!base::CreateTemporaryFile(&minidump_path)) {
LOG(ERROR) << "Failed to create temporary file, crash won't be reported.";
return;
}
// We need read permission as the minidump is generated in several phases
// and needs to be read at some point.
int flags = base::File::FLAG_OPEN | base::File::FLAG_READ |
base::File::FLAG_WRITE;
base::File minidump_file(minidump_path, flags);
if (!minidump_file.IsValid()) {
LOG(ERROR) << "Failed to open temporary file, crash won't be reported.";
return;
}
{
base::AutoLock auto_lock(child_process_id_to_minidump_path_lock_);
DCHECK(!base::ContainsKey(child_process_id_to_minidump_path_,
child_process_id));
child_process_id_to_minidump_path_[child_process_id] = minidump_path;
}
mappings->Transfer(descriptor_id_,
base::ScopedFD(minidump_file.TakePlatformFile()));
}
// static
void CrashDumpManager::ProcessMinidump(
const base::FilePath& minidump_path,
const base::FilePath& crash_dump_dir,
base::ProcessHandle pid,
content::ProcessType process_type,
base::TerminationStatus termination_status,
base::android::ApplicationState app_state) {
DCHECK_CURRENTLY_ON(BrowserThread::FILE);
int64_t file_size = 0;
int r = base::GetFileSize(minidump_path, &file_size);
DCHECK(r) << "Failed to retrieve size for minidump "
<< minidump_path.value();
// TODO(wnwen): If these numbers match up to TabWebContentsObserver's
// TabRendererCrashStatus histogram, then remove that one as this is more
// accurate with more detail.
if ((process_type == content::PROCESS_TYPE_RENDERER ||
process_type == content::PROCESS_TYPE_GPU) &&
app_state != base::android::APPLICATION_STATE_UNKNOWN) {
ExitStatus exit_status;
bool is_running =
(app_state == base::android::APPLICATION_STATE_HAS_RUNNING_ACTIVITIES);
bool is_paused =
(app_state == base::android::APPLICATION_STATE_HAS_PAUSED_ACTIVITIES);
if (file_size == 0) {
if (is_running) {
exit_status = EMPTY_MINIDUMP_WHILE_RUNNING;
} else if (is_paused) {
exit_status = EMPTY_MINIDUMP_WHILE_PAUSED;
} else {
exit_status = EMPTY_MINIDUMP_WHILE_BACKGROUND;
}
} else {
if (is_running) {
exit_status = VALID_MINIDUMP_WHILE_RUNNING;
} else if (is_paused) {
exit_status = VALID_MINIDUMP_WHILE_PAUSED;
} else {
exit_status = VALID_MINIDUMP_WHILE_BACKGROUND;
}
}
if (process_type == content::PROCESS_TYPE_RENDERER) {
if (termination_status == base::TERMINATION_STATUS_OOM_PROTECTED) {
UMA_HISTOGRAM_ENUMERATION("Tab.RendererDetailedExitStatus",
exit_status,
ExitStatus::MINIDUMP_STATUS_COUNT);
} else {
UMA_HISTOGRAM_ENUMERATION("Tab.RendererDetailedExitStatusUnbound",
exit_status,
ExitStatus::MINIDUMP_STATUS_COUNT);
}
} else if (process_type == content::PROCESS_TYPE_GPU) {
UMA_HISTOGRAM_ENUMERATION("GPU.GPUProcessDetailedExitStatus",
exit_status,
ExitStatus::MINIDUMP_STATUS_COUNT);
}
}
if (file_size == 0) {
// Empty minidump, this process did not crash. Just remove the file.
r = base::DeleteFile(minidump_path, false);
DCHECK(r) << "Failed to delete temporary minidump file "
<< minidump_path.value();
return;
}
// We are dealing with a valid minidump. Copy it to the crash report
// directory from where Java code will upload it later on.
if (crash_dump_dir.empty()) {
NOTREACHED() << "Failed to retrieve the crash dump directory.";
return;
}
const uint64_t rand = base::RandUint64();
const std::string filename =
base::StringPrintf("chromium-renderer-minidump-%016" PRIx64 ".dmp%d",
rand, pid);
base::FilePath dest_path = crash_dump_dir.Append(filename);
r = base::Move(minidump_path, dest_path);
if (!r) {
LOG(ERROR) << "Failed to move crash dump from " << minidump_path.value()
<< " to " << dest_path.value();
base::DeleteFile(minidump_path, false);
return;
}
VLOG(1) << "Crash minidump successfully generated: "
<< crash_dump_dir.Append(filename).value();
}
void CrashDumpManager::OnChildExit(int child_process_id,
base::ProcessHandle pid,
content::ProcessType process_type,
base::TerminationStatus termination_status,
base::android::ApplicationState app_state) {
base::FilePath minidump_path;
{
base::AutoLock auto_lock(child_process_id_to_minidump_path_lock_);
ChildProcessIDToMinidumpPath::iterator iter =
child_process_id_to_minidump_path_.find(child_process_id);
if (iter == child_process_id_to_minidump_path_.end()) {
// We might get a NOTIFICATION_RENDERER_PROCESS_TERMINATED and a
// NOTIFICATION_RENDERER_PROCESS_CLOSED.
return;
}
minidump_path = iter->second;
child_process_id_to_minidump_path_.erase(iter);
}
BrowserThread::PostTask(
BrowserThread::FILE, FROM_HERE,
base::Bind(&CrashDumpManager::ProcessMinidump, minidump_path,
crash_dump_dir_, pid, process_type, termination_status,
app_state));
}
} // namespace breakpad
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