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