TimeStamp::ProcessCreations()'s aIsInconsistent outparam is ignored by the
majority of its caller. This patch makes it optional. Notably, this makes
ProcessCreation() easier to use in a constructor's initializer list.
On x86_64-Linux, LUL currently can only unwind frames for which CFI unwind data
is available. This causes a noticeable number of junk samples in the profiler,
characterised by failures at transition points between JIT and native frame
sequences. This patch allows LUL to try recovering the previous frame using
frame pointer chasing in the case where CFI isn't present. This allows LUL to
unwind through or jump over interleaved JIT frames, because, respectively:
* The baseline JIT produces frame-pointerised code.
* If the profiler is enabled, IonMonkey doesn't produce frame-pointerised code,
but also doesn't change the frame pointer register value. It can use the
frame pointer if profiling is disabled, but that's irrelevant here.
The patch also adds counts of FP-recovered frames to LUL's statistics printing,
to make it possible to assess how often this feature is used.
--HG--
extra : rebase_source : eadc54393788693b0e3f8d5129d48aaaad143a0b
We can lower the eslint cyclomatic complexity threshold in some directories without adding eslint suppression comments in any .js source files. We need to specify the complexity rule in accessible/.eslintrc because it doesn't inherit the mozilla/recommended rules. eslint's default complexity threshold is 20.
Also bump the eslint-plugin-mozilla version because we modified the mozilla/recommended rules.
MozReview-Commit-ID: 57T4gAjPH7z
--HG--
extra : rebase_source : 4565abfa722b9459cfb4e006e843da13ed7cffd4
extra : intermediate-source : 658588564c08c9fd5e60633d1457f24087de8570
extra : source : 7e0526e3b943419a80c0cd2fa462cabbf8925eb1
eslint's default max-nested-callbacks threshold is 10, but now we make it an error. We could further lower the max-nested-callbacks threshold globally to 8, like browser/.eslintrc.js, but that would require adding suppression comments in (two) more .js test files. 10 seems good enough for now since it's the eslint default.
We need to specify max-nested-callbacks in accessible/.eslintrc because it doesn't inherit the mozilla/recommended rules.
Also bump the eslint-plugin-mozilla version because we modified the mozilla/recommended rules.
MozReview-Commit-ID: JA41vsi4U7j
--HG--
extra : rebase_source : 2dd211ebd3b8cf83f67f26cac5244bec8978f0e2
extra : intermediate-source : 6f5e75502be394038543029e3cfd474c5b1c2e98
extra : source : a13437d73c97fabd073ab8a6f93e85a5084b7405
We've had 4 submissions in 2017. jgriffin and I agreed that it was a
failed experiment and we should either abandon it or figure out how
to increase participation. Since nobody is available to improve it,
I'm inclined to just delete it. If we want to bring it back, it is
always in version control.
MozReview-Commit-ID: AizkZxjQ8IJ
--HG--
extra : rebase_source : 0e29058cfc909fb51fc56fa9b46c0e0a6eef0bf9
This should make it unnecessary to bump the version number of our self-built modules, by comparing the actual files.
MozReview-Commit-ID: GFbxBs4bc4Z
--HG--
extra : rebase_source : d96d465615254655ce0fa7af29503a534e795428
AddPseudoEntry() has a single callsite which always passes nullptr for the
last argument. This means that js::ProfilingGetPC() is never called, and so can
be removed. (Even if it was called, it always returns nullptr because ipToPC()
always returns nullptr!)
--HG--
extra : rebase_source : 1260d726c79bf5116143da9904d39b38e3c93837
Remove the definition of sig_safe_t, which is only used by PseudoStack,
and replace the uses with mozilla::Atomic<uint32_t>.
MozReview-Commit-ID: GcPd9R94Vci
--HG--
extra : rebase_source : dcc05a219d59ffdc0486ef2e7118d888c6a93fda
This fixes a JS exception that gets thrown when one tries to capture a profile
in this case.
--HG--
extra : rebase_source : 46f6eeed3c17086b0b6c35b26f3c9e4841dd6cff
clang's -Wcomma warning warns about suspicious use of the comma operator such as between two statements.
tools/profiler/lul/LulDwarf.cpp:604:15: warning: possible misuse of comma operator here [-Wcomma]
MozReview-Commit-ID: 6ZP79hgtrAD
--HG--
extra : rebase_source : 77028600c713aa3235c3729a5db7be0290df57e4
extra : source : e4536bbeb28050b38979a05b379f13eb4a12beee
The patch adds a missing |delete|. (This leak only occurred when the
"mainthreadio" feature was enabled, which is not the default.)
The patch also makes the unregistering of the interpose observer conditional on
there being one in the first place, avoiding a harmless but useless
unregistering of |nullptr|.
--HG--
extra : rebase_source : 7cc3679192e3effa8d86edad5374643d2e2b8948
For reasons related to the architecture of the Gecko Profiler in previous years,
which are no longer relevant, LUL will only unwind through the first 32KB of
stack. This is mostly harmless, since most stacks are smaller than 4KB, per
measurements today, but occasionally they go above 32KB, causing unwinding to
stop prematurely.
This patch changes the max size to 160KB, and documents the rationale for
copying the stack and unwinding, rather than unwinding in place. 160KB is big
enough for all stacks observed in several minutes of profiling all threads at
1KHz.
--HG--
extra : rebase_source : a1d5526aff50345be8b965c2b6b01c66b40fd0d8
Everything depending on the widget being gonk can go away, as well as
everything depending on MOZ_AUDIO_CHANNEL_MANAGER, which was only
defined on gonk builds under b2g/ (which goes away in bug 1357326).
--HG--
extra : rebase_source : 9f0aeeb7eea8417fa4e06d662d566d67ecaf2a24
Bump the version number to match what is currently published.
MozReview-Commit-ID: 8r8otQQBqBo
--HG--
extra : rebase_source : 1b7daac6b2852117ae08927fd5a09b2a7650d683
This function can run off the main thread when 'layers.frame-counter' is
enabled.
--HG--
extra : rebase_source : f3db0fd01c636d5af97109761bb0b57b57c79293
This also renames HasProfile() to IsBeingProfiled().
MozReview-Commit-ID: 70RGHNbyZG3
--HG--
extra : rebase_source : 64f1df6985f41ae52d2385edcfd7822d16fd1e00
Wes Kocher
Carsten "Tomcat" Book
Nicholas Nethercote
Julian Seward
Mike Cooper
Chris Peterson
Gregory Szorc
Greg Tatum
Mark Banner
Tom Tromey
Markus Stange
Andi-Bogdan Postelnicu
Dan Banner
Frederik Braun
Mike Hommey
Iris Hsiao