CRITICAL_SECTIONs have useful debug info that we'd like to keep around at least
on nightly, rather than having diverging signatures on crash stats we'd like to
just keep a unified implementation. As we didn't see significant perf
improvements after landing we're going to just back this out.
This patch reduces the differences between builds where the profiler is enabled
and those where the profiler is disabled. It does this by removing numerous
MOZ_GECKO_PROFILER checks.
These changes have the following consequences.
- Various functions and classes are now defined in all builds, and so can be
used unconditionally: profiler_add_marker(), profiler_set_js_context(),
profiler_clear_js_context(), profiler_get_pseudo_stack(), AutoProfilerLabel.
(They are effectively no-ops in non-profiler builds, of course.)
- The no-op versions of PROFILER_* are now gone. The remaining versions are
almost no-ops when the profiler isn't built.
--HG--
extra : rebase_source : 8fb5e8757600210c2f77865694d25162f0b7698a
EnsureWalkThreadReady takes two locks, one in _beginthreadex and another in the DLL hook setup.
We can avoid the first by not calling EnsureWalkThreadReady if we're walking a suspended thread, since we won't be using a separate WalkThread anyway.
To avoid the hook locks, I gave in and decided to go back to setting up the hooks in DllBlocklist_Initialize as originally planned.
Profiler labels can't currently be used in mozglue, because the profiler's code
is in libxul, and mozglue cannot depend on libxul.
This patch addresses this by basically duplicating AutoProfilerLabel in
mozglue. libxul passes two callback functions to mozglue to do the actual
pushing/popping of labels.
It's an annoying amount of machinery, but it is unavoidable if we want to use
profiler labels within mozglue.
--HG--
extra : rebase_source : 4bcb6fb0f050bba42c23d92d01f9c56611f8518f
In TSF mode, application should retrieve messages with ITfMessagePump::GetMessage() or ITfMessagePump::PeekMessage() since TSF/TIP may handle the message before or after the host application handles it.
This patch rewrites the API users with WinUtils::(Get|Peek)Message() which use ITfMessagePump if it's available.
MozReview-Commit-ID: LwHIgp7SxLH
--HG--
extra : rebase_source : aa5750af9812f9b107c29546cbee6f9eede6ebfa
Add unit tests for Printf. Code coverage now at 90%. Doing better is
difficult due to the large number of assertions and failure cases, and
because some remaining untested code implements behavior undefined by
the spec, for example "%0s".
MozReview-Commit-ID: FenOur7bOt2
--HG--
extra : rebase_source : 4a399743e87912d8a72a8607dd520e676785f52d
This removes some "#if 0"s, and some related code that is also obviously
dead.
MozReview-Commit-ID: 1vEPohvdpw8
--HG--
extra : rebase_source : b7a1c08c422f0aae6538db03331773f31be33ac6
This annotates vsprintf-like functions with MOZ_FORMAT_PRINTF. This may
provide some minimal checking of such calls (the GCC docs say that it
checks for the string for "consistency"); but in any case shouldn't
hurt.
MozReview-Commit-ID: HgnAK1LiorE
--HG--
extra : rebase_source : 9c8d715d6560f89078c26ba3934e52a2b5778b6a
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.
This will prevent the profiler from suspending a target thread while that thread holds the RtlLookupFunctionEntry lock, which the profiler itself also wants to use.
Change mozilla::Smprintf and friends to return a UniquePtr, rather than
relying on manual memory management. (Though after this patch there are
still a handful of spots needing SmprintfFree.)
MozReview-Commit-ID: COa4nzIX5qa
--HG--
extra : rebase_source : ab4a11b4d2e758099bd0794d5c25d799a7e42680
Bug 1350097 points out a case where the assertion in cvt_f, added in
https://bugzilla.mozilla.org/show_bug.cgi?id=1060419#c127, triggers.
Before this addition, code calling this printf variant would end up just
printing something invalid, as the truncated value would be emitted.
This patch increases the buffer size to be sufficient for DBL_MAX.
MozReview-Commit-ID: AVphURGa6jL
--HG--
extra : rebase_source : c7a2dad8e496434a631441ccc25dfee2db1ea71a
For pthreads platforms, we have a terribly large condition for the size
of a MutexImpl that attempts to hardcode the number of words that
pthread_mutex_t takes. This hardcoding isn't always correct. We
originally did this to try and keep <pthread.h> includes out of the
headers, but the PlatformConditionVariable.h header already includes
<pthread.h> anyway, and <pthread.h> isn't so namespace-invasive as
<windows.h>. So go ahead and include <pthread.h> and use the actual
definition of pthread_mutex_t to size the platformData_ member.
Android uses android.os.SystemClock.uptimeMilles for event time and SystemClock.uptimeMilles uses SYSTEM_TIME_MONOTONIC.
So since TimeStamp posix impelemetation uses SYSTEM_TIME_MONOTONIC too, so we can use event time on FromSystemTime.
MozReview-Commit-ID: 5Qb5kmnHHCI
--HG--
extra : rebase_source : 26d1554fa60e3216edfd4b149380910fe2a9d845
With frame pointer omission disabled we should always have usable stacks on Windows. This allows us to remove the MOZ_STACKWALKING define as it will always be enabled.
MozReview-Commit-ID: 54xs3Hf1r4P
--HG--
extra : rebase_source : dfaf13fb4c2185985f4f074c338ccf1fef8f3c94
CLOSED TREE
Backed out changeset 01cfc71ce542 (bug 1322735)
Backed out changeset 84c729c41230 (bug 1322735)
Backed out changeset b419aaefae95 (bug 1322735)
With frame pointer omission disabled we should always have usable stacks on Windows. This allows us to remove the MOZ_STACKWALKING define as it will always be enabled.
MozReview-Commit-ID: 54xs3Hf1r4P
--HG--
extra : rebase_source : 5fe27cdeeb464d81fbedc8c02ac187658bd759e7
Newer versions of clang warn about this construct, as the behavior is
not consistent between compilers. These warnings break
warnings-as-error builds, and seem like reasonable warnings to fix, so
let's do that.
X86_OR_PPC was only used in one place, so inlining it and getting rid of
the definition seemed reasonable.
Without this change, Visual Studio 2015 complains:
mozglue/misc/StackWalk.cpp(261): warning C4477: 'fprintf' : format
string '%s' requires an argument of type 'char *', but variadic argument
2 has type 'LPVOID'
MozReview-Commit-ID: HIAs5L57Nd1
--HG--
extra : rebase_source : 1ac50c03c4d6b14e22f3d55aca026fce15565f5c
This patch introduces a small utility program to extract a guid from a shared library
or executable on windows to identify the correct symbol file to read in fix_stack_using_bpsyms.py.
In order for this to work correctly on windows, the library name provided by
MozDescribeCodeAddress needs to be a full path, so the LoadedImageName field
from the IMAGEHLP_MODULE64 structure is used here instead of the ModuleName
field.
MozReview-Commit-ID: 8zkfLWjKVs2
This patch introduces a small utility program to extract a guid from a shared library
or executable on windows to identify the correct symbol file to read in fix_stack_using_bpsyms.py.
In order for this to work correctly on windows, the library name provided by
MozDescribeCodeAddress needs to be a full path, so the LoadedImageName field
from the IMAGEHLP_MODULE64 structure is used here instead of the ModuleName
field.
--HG--
extra : commitid : GwkhBdm81g3
Also, in the unlikely case none of the supported methods is available, error
out at compile time, because it's not supposed to happen, apart if something
like what bug 989499 did happens again.
The patch removes 455 occurrences of FAIL_ON_WARNINGS from moz.build files, and
adds 78 instances of ALLOW_COMPILER_WARNINGS. About half of those 78 are in
code we control and which should be removable with a little effort.
--HG--
extra : rebase_source : 82e3387abfbd5f1471e953961d301d3d97ed2973
The bulk of this commit was generated by running:
run-clang-tidy.py \
-checks='-*,llvm-namespace-comment' \
-header-filter=^/.../mozilla-central/.* \
-fix
