mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-30 13:45:27 +00:00
cb4e448046
When SPS profiler is disabled (breakpad is disabled etc), mozilla_sampler_stop() is undefined. We should use profiler_stop() instead. profiler_stop calls mozilla_sampler_stop() when SPS profiler is built. MozReview-Commit-ID: LmuDJEQV7Pr --HG-- extra : rebase_source : 741a68fea1a76152d332c1ce97a926dab41d4073
90 lines
2.7 KiB
C++
90 lines
2.7 KiB
C++
/* -*- Mode: c++; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
|
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "ANRReporter.h"
|
|
#include "GeckoProfiler.h"
|
|
|
|
#include <unistd.h>
|
|
|
|
namespace mozilla {
|
|
|
|
bool
|
|
ANRReporter::RequestNativeStack(bool aUnwind)
|
|
{
|
|
if (profiler_is_active()) {
|
|
// Don't proceed if profiler is already running
|
|
return false;
|
|
}
|
|
// WARNING: we are on the ANR reporter thread at this point and it is
|
|
// generally unsafe to use the profiler from off the main thread. However,
|
|
// the risk here is limited because for most users, the profiler is not run
|
|
// elsewhere. See the discussion in Bug 863777, comment 13
|
|
const char *NATIVE_STACK_FEATURES[] =
|
|
{"leaf", "threads", "privacy"};
|
|
const char *NATIVE_STACK_UNWIND_FEATURES[] =
|
|
{"leaf", "threads", "privacy", "stackwalk"};
|
|
|
|
const char **features = NATIVE_STACK_FEATURES;
|
|
size_t features_size = sizeof(NATIVE_STACK_FEATURES);
|
|
if (aUnwind) {
|
|
features = NATIVE_STACK_UNWIND_FEATURES;
|
|
features_size = sizeof(NATIVE_STACK_UNWIND_FEATURES);
|
|
// We want the new unwinder if the unwind mode has not been set yet
|
|
putenv("MOZ_PROFILER_NEW=1");
|
|
}
|
|
|
|
const char *NATIVE_STACK_THREADS[] =
|
|
{"GeckoMain", "Compositor"};
|
|
// Buffer one sample and let the profiler wait a long time
|
|
profiler_start(100, 10000, features, features_size / sizeof(char*),
|
|
NATIVE_STACK_THREADS, sizeof(NATIVE_STACK_THREADS) / sizeof(char*));
|
|
return true;
|
|
}
|
|
|
|
jni::String::LocalRef
|
|
ANRReporter::GetNativeStack()
|
|
{
|
|
if (!profiler_is_active()) {
|
|
// Maybe profiler support is disabled?
|
|
return nullptr;
|
|
}
|
|
|
|
// Timeout if we don't get a profiler sample after 5 seconds.
|
|
const PRIntervalTime timeout = PR_SecondsToInterval(5);
|
|
const PRIntervalTime startTime = PR_IntervalNow();
|
|
|
|
// Pointer to a profile JSON string
|
|
typedef mozilla::UniquePtr<char[]> ProfilePtr;
|
|
|
|
ProfilePtr profile(profiler_get_profile());
|
|
|
|
while (profile && !strstr(profile.get(), "\"samples\":[{")) {
|
|
// no sample yet?
|
|
if (PR_IntervalNow() - startTime >= timeout) {
|
|
return nullptr;
|
|
}
|
|
usleep(100000ul); // Sleep for 100ms
|
|
profile = ProfilePtr(profiler_get_profile());
|
|
}
|
|
|
|
if (profile) {
|
|
return jni::String::Param(profile.get());
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
void
|
|
ANRReporter::ReleaseNativeStack()
|
|
{
|
|
if (!profiler_is_active()) {
|
|
// Maybe profiler support is disabled?
|
|
return;
|
|
}
|
|
profiler_stop();
|
|
}
|
|
|
|
} // namespace
|
|
|