Chromecast: adds crash handling for Android build.

chromecast/crash/android/crash_handler.cc

+// Copyright 2014 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 "chromecast/crash/android/crash_handler.h"
+
+#include <jni.h>
+#include <string>
+
+#include "base/android/jni_android.h"
+#include "base/android/jni_string.h"
+#include "base/files/file_path.h"
+#include "base/logging.h"
+#include "breakpad/src/client/linux/handler/exception_handler.h"
+#include "breakpad/src/client/linux/handler/minidump_descriptor.h"
+#include "chromecast/common/version.h"
+#include "chromecast/crash/android/cast_crash_reporter_client_android.h"
+#include "components/crash/app/breakpad_linux.h"
+#include "components/crash/app/crash_reporter_client.h"
+#include "content/public/common/content_switches.h"
+#include "jni/CastCrashHandler_jni.h"
+
+namespace {
+
+chromecast::CrashHandler* g_crash_handler = NULL;
+
+// ExceptionHandler requires a HandlerCallback as a function pointer. This
+// function exists to proxy into the global CrashHandler instance.
+bool HandleCrash(const void* /* crash_context */,
+                 size_t /* crash_context_size */,
+                 void* /* context */) {
+  DCHECK(g_crash_handler);
+  if (g_crash_handler->CanUploadCrashDump()) {
+    g_crash_handler->AttemptUploadCrashDump();
+  } else {
+    g_crash_handler->RemoveCrashDumps();
+  }
+
+  // Let the exception continue to propagate up to the system.
+  return false;
+}
+
+}  // namespace
+
+namespace chromecast {
+
+// static
+void CrashHandler::Initialize(const std::string& process_type,
+                              const base::FilePath& log_file_path) {
+  DCHECK(!g_crash_handler);
+  g_crash_handler = new CrashHandler(log_file_path);
+  g_crash_handler->Initialize(process_type);
+}
+
+// static
+bool CrashHandler::GetCrashDumpLocation(base::FilePath* crash_dir) {
+  DCHECK(g_crash_handler);
+  return g_crash_handler->crash_reporter_client_->
+      GetCrashDumpLocation(crash_dir);
+}
+
+// static
+bool CrashHandler::RegisterCastCrashJni(JNIEnv* env) {
+  return RegisterNativesImpl(env);
+}
+
+CrashHandler::CrashHandler(const base::FilePath& log_file_path)
+    : log_file_path_(log_file_path),
+      crash_reporter_client_(new CastCrashReporterClientAndroid) {
+  if (!crash_reporter_client_->GetCrashDumpLocation(&crash_dump_path_)) {
+    LOG(ERROR) << "Could not get crash dump location";
+  }
+  SetCrashReporterClient(crash_reporter_client_.get());
+}
+
+CrashHandler::~CrashHandler() {
+  DCHECK(g_crash_handler);
+  g_crash_handler = NULL;
+}
+
+void CrashHandler::Initialize(const std::string& process_type) {
+  if (process_type != switches::kZygoteProcess) {
+    if (process_type.empty()) {
+      // ExceptionHandlers are called on crash in reverse order of
+      // instantiation. This ExceptionHandler will attempt to upload crashes
+      // and the log file written out by the main process.
+
+      // Dummy MinidumpDescriptor just to start up another ExceptionHandler.
+      google_breakpad::MinidumpDescriptor dummy(crash_dump_path_.value());
+      crash_uploader_.reset(new google_breakpad::ExceptionHandler(
+          dummy, NULL, NULL, NULL, true, -1));
+      crash_uploader_->set_crash_handler(&::HandleCrash);
+
+      breakpad::InitCrashReporter(process_type);
+    } else {
+      breakpad::InitNonBrowserCrashReporterForAndroid(process_type);
+    }
+  }
+
+  UploadCrashDumpsAsync();
+}
+
+bool CrashHandler::CanUploadCrashDump() {
+  DCHECK(crash_reporter_client_);
+  return crash_reporter_client_->GetCollectStatsConsent();
+}
+
+void CrashHandler::AttemptUploadCrashDump() {
+  VLOG(1) << "Attempting to upload current process crash";
+  JNIEnv* env = base::android::AttachCurrentThread();
+  // Crash dump location
+  base::android::ScopedJavaLocalRef<jstring> crash_dump_path_java =
+      base::android::ConvertUTF8ToJavaString(env,
+                                             crash_dump_path_.value());
+  // Current log file location
+  base::android::ScopedJavaLocalRef<jstring> log_file_path_java =
+      base::android::ConvertUTF8ToJavaString(env, log_file_path_.value());
+  Java_CastCrashHandler_uploadCurrentProcessDumpSync(
+      env,
+      crash_dump_path_java.obj(),
+      log_file_path_java.obj(),
+      CAST_IS_DEBUG_BUILD);
+}
+
+void CrashHandler::UploadCrashDumpsAsync() {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  base::android::ScopedJavaLocalRef<jstring> crash_dump_path_java =
+      base::android::ConvertUTF8ToJavaString(env,
+                                             crash_dump_path_.value());
+  Java_CastCrashHandler_uploadCrashDumpsAsync(env,
+                                              crash_dump_path_java.obj(),
+                                              CAST_IS_DEBUG_BUILD);
+}
+
+void CrashHandler::RemoveCrashDumps() {
+  VLOG(1) << "Removing crash dumps instead of uploading";
+  JNIEnv* env = base::android::AttachCurrentThread();
+  base::android::ScopedJavaLocalRef<jstring> crash_dump_path_java =
+      base::android::ConvertUTF8ToJavaString(env,
+                                             crash_dump_path_.value());
+  Java_CastCrashHandler_removeCrashDumpsSync(
+      env, crash_dump_path_java.obj(), CAST_IS_DEBUG_BUILD);
+}
+
+}  // namespace chromecast