android_webview/crash_reporter/aw_microdump_crash_reporter.cc

   1 // Copyright 2015 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 "android_webview/crash_reporter/aw_microdump_crash_reporter.h"
   6
   7 #include "android_webview/common/aw_version_info_values.h"
   8 #include "base/lazy_instance.h"
   9 #include "build/build_config.h"
  10 #include "components/crash/app/breakpad_linux.h"
  11 #include "components/crash/app/crash_reporter_client.h"
  12
  13 namespace android_webview {
  14 namespace crash_reporter {
  15
  16 namespace {
  17
  18 class AwCrashReporterClient : public ::crash_reporter::CrashReporterClient {
  19  public:
  20   AwCrashReporterClient() {}
  21
  22   // crash_reporter::CrashReporterClient implementation.
  23   bool IsRunningUnattended() override { return false; }
  24   bool GetCollectStatsConsent() override { return false; }
  25
  26   void GetProductNameAndVersion(const char** product_name,
  27                                 const char** version) override {
  28     *product_name = "WebView";
  29     *version = PRODUCT_VERSION;
  30   }
  31   // Microdumps are always enabled in WebView builds, conversely to what happens
  32   // in the case of the other Chrome for Android builds (where they are enabled
  33   // only when NO_UNWIND_TABLES == 1).
  34   bool ShouldEnableBreakpadMicrodumps() override { return true; }
  35
  36  private:
  37   DISALLOW_COPY_AND_ASSIGN(AwCrashReporterClient);
  38 };
  39
  40 base::LazyInstance<AwCrashReporterClient>::Leaky g_crash_reporter_client =
  41     LAZY_INSTANCE_INITIALIZER;
  42
  43 bool g_enabled = false;
  44
  45 }  // namespace
  46
  47 void EnableMicrodumpCrashReporter() {
  48 #if defined(ARCH_CPU_X86_FAMILY)
  49   // Don't install signal handler on X86/64 because this breaks binary
  50   // translators that handle SIGSEGV in userspace and get chained after our
  51   // handler. See crbug.com/477444
  52   return;
  53 #endif
  54
  55   if (g_enabled) {
  56     NOTREACHED() << "EnableMicrodumpCrashReporter called more than once";
  57     return;
  58   }
  59
  60   ::crash_reporter::SetCrashReporterClient(g_crash_reporter_client.Pointer());
  61
  62   // |process_type| is not really relevant here, as long as it not empty.
  63   breakpad::InitNonBrowserCrashReporterForAndroid("webview" /* process_type */);
  64   g_enabled = true;
  65 }
  66
  67 }  // namespace crash_reporter
  68 }  // namespace android_webview