This patch adds a new environment variable XPCOM_MEM_LOG_JS_STACK that
changes XPCOM leakchecking to record a JS stack for all objects, in
addition to a C++ stack. This is useful when a C++ object is being
leaked due to JS. The JS stack will be printed if the object leaks, if
it is used in combination with XPCOM_MEM_BLOAT_LOG=1 and
XPCOM_MEM_LOG_CLASSES=nsFoo, if nsFoo is the class of interest.
This patch moves a few XPConnect functions for recording the stack
into xpcpublic.h so they can be called from nsTraceRefcnt.cpp.
MozReview-Commit-ID: FX2QVCSXz4f
--HG--
extra : rebase_source : 5bd4e341072f4cf7d3be774b63d2107479fe9985
This commit adds a paint worker thread pool to PaintThread, and dispatches
tiled paints to it. The thread pool is only created if tiling is enabled,
and its size is set by 'layers.omtp.paint-workers' and defaults to 1. If
-1 is specified, it will be sized to 'max((cpu_cores * 3) / 4, 1)'.
The one tricky part of dispatching tiled paints to a thread pool is the
AsyncEndLayerTransaction message that must execute once all paints are
finished. Previously, this runnable would be queued after all the paints
had been queued, ensuring it would be run after they had all completed.
With a thread pool, there is no guarantee. Instead this commit, uses
a flag on CompositorBridgeChild to signify whether all of the paints
have been queued ('mOutstandingAsyncEndLayerTransaction'), and after
every tiled paint it is examined to see if that paint was the last
paint, and if it is to run AsyncEndLayerTransaction. In addition,
if the async paints complete before we even mark the end of the
layer transaction, we queue it like normal.
The profiler markers are also complicated by using a thread pool.
I don't know of a great way to keep them working as they are per
thread, so for now I've removed them. I may have been the only
one using them anyway.
MozReview-Commit-ID: 5LIJ9GWSfCn
--HG--
extra : rebase_source : 0c26806f337a1b4b1511945f9c72e787b426c5ba
We had to force-include Char16.h to simulate char16_t on older MSVC versions.
But it is no longer the case. We should not rebuild the world whenever we
touch this file.
MozReview-Commit-ID: 1XY7tQD8LoK
--HG--
extra : rebase_source : a08ccfc9b6a4abf90f6f8b97a42079865724c9ec
Most subclasses of Runnable don't bother to override AddRef and
Release, so XPCOM leak checking ends up reporting Runnable, which
makes it impossible to know what is actually leaking.
Each subclass of Runnable is already required to pass in the name of
the class, which is stored in the field mName. This patch changes
Runnable to use mName as the class name for XPCOM leak checking, thus
giving each subclass a specific name without needing to change the
hundreds of existing subclasses of Runnable.
The limitation of this approach is the classes that DO use
NS_IMPL_ADDREF/RELEASE_INHERITED end up using the same class name that
is used by the superclass AddRef/Release, but with a different size,
which causes assertions in the leak checker. To work around this, I
change NS_IMPL_ADDREF/RELEASE_INHERITED to not call into
NS_LOG_ADDREF/RELEASE for classes that are a subclass of
Runnable. This needs to use IsConvertible<> and not IsBaseOf<> because
the latter requires the classes involved to be defined, and headers
can use nsISupportsImpl.h without nsThreadUtils.h.
MozReview-Commit-ID: H0pgvwQSZAE
--HG--
extra : rebase_source : 0be13fe2e649e62be1f9471fc03fac43024eb0aa
Remove the headers included for "backwards compatibility" and just include them
where required.
--HG--
extra : source : e2beba7e6875120ebbbcadf24bcbcb5b86411a94
extra : amend_source : 11f07a27431cd468511f0bd45afe36150c6e342c
Remove the headers included for "backwards compatibility" and just include them
where required.
--HG--
extra : rebase_source : 03e703a81ed4b80f4f116ff36d8787464ce5acba
This removes an unnecessary level of indirection by replacing all
nsStringGlue.h instances with just nsString.h.
--HG--
extra : rebase_source : 340989240af4018f3ebfd92826ae11b0cb46d019
Back when mozalloc was a separate library, the xpcom glue code could not
use the infallible allocator API. But since bug 868814, that's not the
case anymore, so we can safely include mozalloc.h when XPCOM_GLUE is
set.
--HG--
extra : rebase_source : a8fbf8dc7020765d7287e2eb7ceaf41c99be8b18
NoteIntentionalCrash is supposed to leave a marker that a process has crashed
intentionally, but if it can't open the target file it will crash the process
itself. This can cause difficulty debugging and false-positive results for
tests expecting crashes.
MozReview-Commit-ID: CgLauJIEAKD
--HG--
extra : rebase_source : 689bfaa0e93b96f8ebbbaf31e17e80547004506f
There's no good reason why these should't just be constants. The patch also
appends "MiB" to some of the C++ values to make their meaning clearer.
This patch fixes one outright bug, and one inconsistency.
The bug is due to a prefname mismatch:
- ContentPrefs.cpp and AvailableMemoryTracker.cpp use
"memory.low_virtual_mem_threshold_mb".
- all.js uses "memory.low_virtual_memory_threshold_mb".
Which means that "memory.low_virtual_memory_threshold_mb" showed up in
about:config, but if you changed it nothing would happen because the callback
listened for changes to to "memory.low_virtual_mem_threshold_mb"!
Now for the inconsistency. The above means we actually use a value of 256 for
the virtual memory threshold, even though all.js says 128. But we *do* use a
value of 128 for the commit space threshold, because that's what all.js says
and that prefname is used correctly everywhere. The patch changes the commit
space threshold to 256 for consistency with the virtual memory threshold.
What a mess!
--HG--
extra : rebase_source : d3842c732efa9ab0e90eeb6a4f341aeb289589ed
This was originally added for b2g, where the pref had a different value.
Bug 1398033 enabled it everywhere.
--HG--
extra : rebase_source : c8bb03190cd00d25e6c2ec62a99ed8e911e08197
Use MOZ_CRASH, MOZ_CRASH_UNSAFE_OOL, or MOZ_CRASH_UNSAFE_PRINTF instead.
MozReview-Commit-ID: 1kCCHMlgbGP
--HG--
extra : rebase_source : 2f07ced16bccebf30cd3b2b5fea35e9868d32dad
extra : source : 0bf2c8425b828e71de55dd175fd0dad635b4e67d
There should be no functional change here, but we rely upon the new
structure in the next patch in the series. This separates out the
notions of removing a request from the load group (which is always
final, and must be executed outside of synchronous calls from the owner
of the imgRequestProxy) and wanting to readd a request to the load group
as a background request (for multipart images).
The most important addition is mForceDispatchLoadGroup which if true
when imgRequestProxy::RemoveFromLoadGroup is called, will dispatch the
removal from the load group instead of executing it inline. This ensures
safety for any callers (e.g. to CancelAndForgetObserver) as above.
This was created for B2G and isn't really useful otherwise. It only works on
Linux, and it's behind the memory.system_memory_reporter pref, which is false
by default.
The patch also removes LinuxUtils.{h,cpp}, which is no longer used.
--HG--
extra : rebase_source : b97a018be11a79f83855a73b88020bfa86e60f78
And remove unreachable code after MOZ_CRASH_UNSAFE_OOL().
MOZ_CRASH_UNSAFE_OOL causes data collection because crash strings are annotated to crash-stats and are publicly visible. Firefox data stewards must do data review on usages of this macro. However, all the crash strings this patch collects with MOZ_CRASH_UNSAFE_OOL are already collected with NS_RUNTIMEABORT.
MozReview-Commit-ID: IHmJfuxXSqw
--HG--
extra : rebase_source : 031f30934b58a7b87f960e57179641d44aefe5c5
extra : source : fe9f638a56a53c8721eecc4273dcc074c988546e
This lets us replace moz_xstrdup() of string literals with AssignLiteral(),
among other improvements.
--HG--
extra : rebase_source : 9994d8ccb4f196cf63564b0dac2ae6c4370defb4
This change requires introducing nsID::Clone(). Because it's infallible, the
patch also removes some redundant failure-handling code. (nsMemory::Clone() is
also infallible, so this code was redundant even before this change.)
--HG--
extra : rebase_source : ef22757d3fa814320490bf7e19e822b8f0c4bdc3
Bug 1134923 removed the use of those functions in gecko, and left some
for the XPCOM standalone glue. The XPCOM standalone glue was severely
stripped down in bug 1306327, with the effect of removing the
implementation for those functions.
The remains in nsXPCOM.h are:
XPCOM_API(void*) NS_Alloc(size_t aSize);
XPCOM_API(void*) NS_Realloc(void* aPtr, size_t aSize);
XPCOM_API(void) NS_Free(void* aPtr);
With no implementation left, the first arm is never actually used, and
the second arm means every remaining use of those functions in the tree
is a macro expansion to one of moz_xmalloc, moz_xrealloc or free.
--HG--
extra : rebase_source : fd1669abc5a25d8edbd5c3a8522e22a5c3f558e2
Currently the Gecko Profiler defines a moderate amount of stuff when
MOZ_GECKO_PROFILER is undefined. It also #includes various headers, including
JS ones. This is making it difficult to separate Gecko's media stack for
inclusion in Servo.
This patch greatly simplifies how things are exposed. The starting point is:
- GeckoProfiler.h can be #included unconditionally;
- everything else from the profiler must be guarded by MOZ_GECKO_PROFILER.
In practice this introduces way too many #ifdefs, so the patch loosens it by
adding no-op macros for a number of the most common operations.
The net result is that #ifdefs and macros are used a bit more, but almost
nothing is exposed in non-MOZ_GECKO_PROFILER builds (including
ProfilerMarkerPayload.h and GeckoProfiler.h), and understanding what is exposed
is much simpler than before.
Note also that in BHR, ThreadStackHelper is now entirely absent in
non-MOZ_GECKO_PROFILER builds.
It seemingly hasn't been needed since Mac OS 10.7. A diagnostic assertion that
has been in place for a while hasn't caught any uses of it.
--HG--
extra : rebase_source : 9834849eec9174267c7df8de7fd22840ffa36d8f
Add macro for nsISupports inheriting classes that need cycle
collection and only inherit from one parent, with no interface table
needed. Takes care of map and addref/release calls.
MozReview-Commit-ID: LtTwYH0DeEz
--HG--
extra : rebase_source : d3650209ddd7e28cbf205ac84f152b9763c26bde
There is no use mozilla namespace statement in this compilation unit, so the
call to GetErrorName() has to be prefixed with the mozilla namespace.
MozReview-Commit-ID: G3caP2v9PFF
--HG--
extra : rebase_source : 9aebe0711cf8ad81dc47592521a4f29b4f75caab
nsIHandleReportCallback, typedef of nsIMemoryReporterCallback, has been the
preferred name for a long time and is used in most places. This patch removes
nsIMemoryReporterCallback.
--HG--
extra : rebase_source : c675076b4f98d93d96235dad890e31e0b0e6c277
The compiler complains because a postfix increment is done inside of an assert.
MozReview-Commit-ID: LSRsWMn9Tlj
--HG--
extra : rebase_source : 18539a430c3d84675c602699be9a5a62dd477fec
We're calling GetCurrentVirtualThread() which is defined in nsThreadUtils.h, so
without including nsThreadUtils.h we'll get a compile error if unified builds
are disabled.
MozReview-Commit-ID: JWCigMqNJDi
--HG--
extra : rebase_source : bac48b8f91e6561dfb7afe2828c3652431347c40
Free dirty pages appear as "page-cache" in about:memory reports, but
when minimizing memory, and more generally, on memory pressure, they're
currently not force-free()ed on desktop, while they are on mobile.
There doesn't seem to be much reason not to do it on desktop as well,
and it should help reduce the noise in "explicit" allocations measurements
on CI, too.
--HG--
extra : rebase_source : e477532dda5e72eb8797b5bcdc9060ca46106275
ISO C++ forbids converting a string constant to 'wchar_t*' [-Werror=write-strings]
Either change it to a nullptr (which has same intent) or pass through a static
MozReview-Commit-ID: CSunOCyO9PN
--HG--
extra : rebase_source : bfdabc1f463eca75987c6561f7c3ea60acf0340f
These methods return an addrefed raw pointer, which makes them easy to use in
ways that cause leaks. If they're to continue returning an addrefed pointer,
they should explicitly return an already_AddRefed.
This also switches to StaticRefPtr with ClearOnShutdown for the cached
pointers for the sake of sanity.
MozReview-Commit-ID: D0lDpU8Hqug
--HG--
extra : rebase_source : 7b199070805fc0472eaf8409932517700ed23d49
NS_GetWeakReference, called from do_GetWeakReference, QI's its argument
to nsISupportsWeakReference to determine whether a weak reference can be
obtained. If NS_GetWeakReference is already receiving a
nsISupportsWeakReference pointer, or something than can be converted to
one, then we can skip the QI for a small performance win.
QIing to CC interfaces shows up in Speedometer profiles for a few
classes. Presumably there are many of these objects being created and
destroyed. By making these classes check first for the CC interfaces
directly, rather than going up the inheritance chain, this overhead
should be reduced.
MozReview-Commit-ID: I3sf3my8oua
--HG--
extra : rebase_source : f08884a944d5b4ed1eb1da1070de64f21fc9868a
The main purpose of defining this is to make conversion of places that
use the non-CC variant easier. There are many more places that could
be converted to use these new macros, if somebody felt motivated.
MozReview-Commit-ID: HspjcN76fjg
--HG--
extra : rebase_source : bf3baa586f90f0afbe9229c32d38cb34cc909b9b
We now have jemalloc_ptr_info() and moz_malloc_enclosing_size_of(), which can
be used to measure heap blocks via interior pointers. This patch does the
following.
- Adds MOZ_DEFINE_MALLOC_ENCLOSING_SIZE_OF, for defining
measure-via-interior-pointer functions.
- Uses these functions to replace some horrid pointer arithmetic in functions
measuring Rust types.
--HG--
extra : rebase_source : 5128408256c128222025153ae3e0f924b2499a2a
Also adds a mozilla/ResultExtensions.h header to define the appropriate
conversion functions for nsresult and PRResult. This is in a separate header
since those types are not available in Spidermonkey, and this is the pattern
other *Extensions.h headers follow.
Also removes equivalent NS_TRY macros and WrapNSResult inlines that served the
same purpose in existing code, and are no longer necessary.
MozReview-Commit-ID: A85PCAeyWhx
--HG--
extra : rebase_source : a5988ff770888f901dd0798e7717bcf6254460cd
This allows MOZ_TRY and MOZ_TRY_VAR to be transparently used in XPCOM methods
when compatible Result types are used.
Also removes a compatibility macro in SimpleChannel.cpp, and an identical
specialization in AddonManagerStartup, which are no longer necessary after
this change.
MozReview-Commit-ID: 94iNrPDJEnN
--HG--
extra : rebase_source : 24ad4a54cbd170eb04ded21794530e56b1dfbd82
When used as an error value, nsresult should never be NS_OK, which means that
we should be able to safely pack simple nsresult Result values into a single
word.
MozReview-Commit-ID: GJvnyTPjynk
--HG--
extra : rebase_source : ab5a64b545dfbfe9bbef167f8b63ecbf00b16e07
We now have jemalloc_ptr_info() and moz_malloc_enclosing_size_of(), which can
be used to measure heap blocks via interior pointers. This patch does the
following.
- Adds MOZ_DEFINE_MALLOC_ENCLOSING_SIZE_OF, for defining
measure-via-interior-pointer functions.
- Uses these functions to replace some horrid pointer arithmetic in functions
measuring Rust types.
--HG--
extra : rebase_source : 81940a72a4b6355b1e99cede4db40db68d4afad3
We already periodically calculate the ghost window amount after cycle
collection, this just uses a cached value of that for the distinguished amount.
This avoids the overhead of a recalculating the value when reporting telemetry.
--HG--
extra : histedit_source : 4ba3ee62fd2871a87970faca8a70b2284e83981d%2C9246ac39cea50c3bb0d1693d8e831c3b3ad33ad9
Replace it with NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION, because it
has been the same for a while.
MozReview-Commit-ID: 5agRGFyUry1
--HG--
extra : rebase_source : 5388c56b2f6905c6ef969150f0c5b77bf247624d
It appears some Android devices like to send spurious RT signals to our process
which we interpret to mean a gc/cc log is being requested. This causes large
files to pile up in the device storage. We can just disable this feature for
Android as it would be pretty hard for a user to actually use (they can just
go to about:memory). Automation can still enable the FIFO queue if we ever
want to start dumping memory reports on device again.
--HG--
extra : rebase_source : 80cb04473677db7f3edc9377b2fca4c72eb63b71
The virtual call to this method shows up in profiles, and therefore
would be nice to avoid if possible. We can do that by making
nsIWeakReference hold the weak reference itself and therefore
implementing a non-virtual QueryReferent method.
nsQueryReferent is defined as an nsCOMPtr_helper, which implies that
calling its operator() method requires a virtual call. While
nsQueryReferent is marked `final`, compiler inlining decisions make it
impossible to de-virtualize the call to operator(). However, we have
many other classes returned by do_* functions that nsCOMPtr handles
directly, requiring no extra virtual calls, and we can give
nsQueryReferent the same treatment.
We should not be declaring forward declarations for nsString classes directly,
instead we should use nsStringFwd.h. This will make changing the underlying
types easier.
--HG--
extra : rebase_source : b2c7554e8632f078167ff2f609392e63a136c299
This function takes up quite a bit of space, and there's no need to for
the log getter to be inlined everywhere. Moving this to out-of-line
code saves ~200K on x86-64 Linux.
The current definition of MOZ_LOG requires calling
LazyLogModule::operator() multiple times, which is unnecessary. We can
avoid that with a bit of clever macro definition and a lengthy
explanation.
As our threattype-listname conversion design, "goog-harmful-proto" is allocated
for this new threat type. This threat type is mainly for mobile.
MozReview-Commit-ID: G9GbgmHHHfp
--HG--
extra : rebase_source : 0681fcd9322b94451a86eafe57bf1ccc4b89db30
extra : intermediate-source : 28b0502d9add81beeae58a2c33f9fd5839d4d544
extra : source : 646f02f15131aa98ad37015b0a641304a3271796
MozStackWalk() is different on Windows to the other platforms. It has two extra
arguments, which can be used to walk the stack of a different thread.
This patch makes those differences clearer. Instead of having a single function
and forbidding those two arguments on non-Windows, it removes those arguments
from MozStackWalk, and splits off MozStackWalkThread() which retains them. This
also allows those arguments to have more appropriate types (HANDLE instead of
uintptr_t; CONTEXT* instead of than void*) and names (aContext instead of
aPlatformData).
The patch also removes unnecessary reinterpret_casts for the aClosure argument
at a couple of MozStackWalk() callsites.
--HG--
extra : rebase_source : 111ab7d6426d7be921facc2264f6db86c501d127
This callback is only used in very limited ways, so just require that
the caller pass in the canonical supports pointer, plus the
participant. This probably won't affect performance much.
MozReview-Commit-ID: CsThzFsKyYx
--HG--
extra : rebase_source : 9595b1d75fc45bc5ee6d932a840e98b5d760cb78
The nsISupports objects added to the purple buffer are already
canonical, so we can avoid some overhead by not QIing them to
nsCycleCollectionISupports. This QIing overhead shows up in profiles.
MozReview-Commit-ID: CQN6wwc7MZm
--HG--
extra : rebase_source : 27e6b70f83b42b5db7af3d1e7d62e36d6f4013a0
All the SizeOf{In,Ex}cludingThis() functions take a MallocSizeOf function
which measures memory blocks. This patch introduces a new type, SizeOfState,
which includes a MallocSizeOf function *and* a table of already-measured
pointers, called SeenPtrs. This gives us a general mechanism to measure
graph-like data structures, by recording which nodes have already been
measured. (This approach is used in a number of existing reporters, but not in
a uniform fashion.)
The patch also converts the window memory reporting to use SizeOfState in a lot
of places, all the way through to the measurement of Elements. This is a
precursor for bug 1383977 which will measure Stylo elements, which involve
Arcs.
The patch also converts the existing mAlreadyMeasuredOrphanTrees table in the
OrphanReporter to use the new mechanism.
--HG--
extra : rebase_source : 2c23285f8b6c3b667560a9d14014efc4633aed51
This is basically a cosmetic change; references are the normal way to do string
outparams.
--HG--
extra : rebase_source : ffc5945f269bdcd3d4116755b56713e87a44b6cd
As well as the straightforward things, this lets us remove ReadSysFile and
WriteSysFile, which in turn lets us remove TestFileUtils.cpp.
--HG--
extra : rebase_source : fc90c05352e654ffc41009d8504a9c54f394fc3f
We already periodically calculate the ghost window amount after cycle
collection, this just uses a cached value of that for the distinguished amount.
This avoids the overhead of a recalculating the value when reporting telemetry.
This allows a bunch of other things to be removed too, including
PluginModuleParent::mSurrogateInstances,
PluginModuleChromeParent::sInstantiated, and NS_PLUGIN_INIT_PENDING.
The patch also removes the AsyncPluginInit crash annotation.
--HG--
extra : rebase_source : cadb1d215fd93051c9032ea0a1fb6f1d2fb80c6d
Implement nsMemoryReporterManager::GetHeapAllocatedAsync() by dispatching
nsMemoryReporterManager::GetHeapAllocated() to a thread pool and dispatching
the result back to the main thread to run the callback with the requested
attribute.
MozReview-Commit-ID: 9jj1UYqu5KD
--HG--
extra : rebase_source : a3620c6313b3253c41adff8d67c77a347240891b
extra : amend_source : 1732a5e4390fadbc597b6a61dc7d51e892f8441e
extra : histedit_source : b892d2046a07fe00368e8f1976394dc1f4c2f496
nsIMemoryReporter::getHeapAllocatedAsync() is added to get attribute
'heapAllocated' asynchronously.
MozReview-Commit-ID: 96KyZpCeTG1
--HG--
extra : rebase_source : 5c27b26788a3a96821ce054911dda8ce2932007d
extra : amend_source : fcb923dac2dfa9d7aa5bf520d38c5bb11f0d60e9
extra : histedit_source : 83ae65c153f7cef6c6529296838a9d9aa367219e
This requires:
- Moving the constructors of ProfilerMarkerPayload and its subclasses into the
.h file so they are visible even when ProfilerMarkerPayload.cpp isn't
compiled.
- Similarly, using a macro to make StreamPayload() a crashing no-op when the
profiler isn't enabled. (It is never called in that case.)
--HG--
extra : rebase_source : 7aad2fdb1bd4e49782024dba6664e8f992771520
It's silly to use prmem.h within Firefox code given that in our configuration
its functions are just wrappers for malloc() et al. (Indeed, in some places we
mix PR_Malloc() with free(), or malloc() with PR_Free().)
This patch removes all uses, except for the places where we need to use
PR_Free() to free something allocated by another NSPR function; in those cases
I've added a comment explaining which function did the allocation.
--HG--
extra : rebase_source : 0f781bca68b5bf3c4c191e09e277dfc8becffa09
This patch makes the following changes to the macros.
- Removes PROFILER_LABEL_FUNC. It's only suitable for use in functions outside
classes, due to PROFILER_FUNCTION_NAME not getting class names, and it was
mostly misused.
- Removes PROFILER_FUNCTION_NAME. It's no longer used, and __func__ is
universally available now anyway.
- Combines the first two string literal arguments of PROFILER_LABEL and
PROFILER_LABEL_DYNAMIC into a single argument. There was no good reason for
them to be separate, and it forced a '::' in the label, which isn't always
appropriate. Also, the meaning of the "name_space" argument was interpreted
in an interesting variety of ways.
- Adds an "AUTO_" prefix to PROFILER_LABEL and PROFILER_LABEL_DYNAMIC, to make
it clearer they construct RAII objects rather than just being function calls.
(I myself have screwed up the scoping because of this in the past.)
- Fills in the 'js::ProfileEntry::Category::' qualifier within the macro, so
the caller doesn't need to. This makes a *lot* more of the uses fit onto a
single line.
The patch also makes the following changes to the macro uses (beyond those
required by the changes described above).
- Fixes a bunch of labels that had gotten out of sync with the name of the
class and/or function that encloses them.
- Removes a useless PROFILER_LABEL use within a trivial scope in
EventStateManager::DispatchMouseOrPointerEvent(). It clearly wasn't serving
any useful purpose. It also serves as extra evidence that the AUTO_ prefix is
a good idea.
- Tweaks DecodePool::SyncRunIf{Preferred,Possible} so that the labelling is
done within them, instead of at their callsites, because that's a more
standard way of doing things.
--HG--
extra : rebase_source : 318d1bc6fc1425a94aacbf489dd46e4f83211de4
PROFILER_MARKER is now just a trivial wrapper for profiler_add_marker(). This
patch removes it.
--HG--
extra : rebase_source : 9858f34763bb343757896a91ab7ad8bd8e56b076
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
mozilla::EditorBase stores nsISelectionController and nsIDocument with nsWeakPtr. However, nsWeakPtr requires QI to retrieve actual pointer and it makes some damage to the performance. If mozilla::WeakPter were available for them, it'd be great. However, it's not available with nsISelectionController nor nsIDocument because it's possible to implement SupportsWeakPtr only with their subclasses but the subclasses shouldn't be referred by editor. Therefore, this patch creates mozilla::CachedWeakPtr<class T> which stores both raw pointer (as cache) and nsWeakPtr and when its cache is requested, it checks if the object referred by nsWeakPtr is still alive.
Additionally, this patch hides the members from subclasses of EditorBase for reducing the maintenance cost.
MozReview-Commit-ID: FvtM7453Vv8
--HG--
extra : rebase_source : a524a8ea327c3993645fafa81db8aef65090f1e0
Once the |aPayload| argument to profile_add_marker() became a UniquePtr the
default value of nullptr caused compilation difficulties that could only be
fixed by #including ProfilerMarkerPayload.h into lots of additional places
(because the UniquePtr<T> instantiation required the T to be fully defined). To
get around this I just split profile_add_marker() into two functions, one with
1 argument and one with 2 arguments.
The patch also removes the definition of PROFILER_MARKER_PAYLOAD in the case
where MOZ_GECKO_PROFILER isn't defined. A comment explains why.
Bug 1368932 removed MOZ_STATIC_ASSERT_VALID_ARG_COUNT because it didn't
actually work for large numbers of arguments. But it was kind of useful
for macros that expand to something broken when they are given no
variadic argument at all.
Now that we have a macro that doesn't require tricks to count empty
arguments lists, however, we can use straightforward static_asserts
instead of a generic macro, which has the side effect of providing more
context in the error message.
--HG--
extra : rebase_source : 223f85c2c5cc7b3fa8c584b70bb084784fb5764a
In a couple places, MOZ_PASTE_PREFIX_AND_ARG_COUNT is used to only count
the number of arguments, we can now use MOZ_ARG_COUNT directly for that.
--HG--
extra : rebase_source : 1064e4cc231863dc4aff83ee6bc90d318b4be418
At the same time, remove the MOZ_STATIC_ASSERT_VALID_ARG_COUNT, which
doesn't actually work for more than 50 arguments(*), and which is now not
useful to detect 0 arguments.
(*) the build fails, but not directly thanks to the static_assert it
expands to.
--HG--
extra : rebase_source : 8f0fe7b352c89b5a3ec87f42ef5464c370c362ef
A previous bug missed a few places where we could theoretically
reenter the CC.
MozReview-Commit-ID: I0otlAEwyZa
--HG--
extra : rebase_source : 064b127a2c28a52b2807cd78031de9af4f258f60
Add breakpoint support for AArch64, and fix a scanf format specifier
warning. Also fix an #if line in xptcinvoke_arm.cpp to work as intended.
MozReview-Commit-ID: BSjYVD8Zq0t
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
See also bug 1361495 - PR_SI_HOSTNAME is implemented in NSPR on
Windows as initializing winsock which can be janky. There don't seem
to be any users of this property, and it has tracker concerns anyhow -
so remove it.
MozReview-Commit-ID: S2AwzMUgYk
--HG--
extra : rebase_source : 552bed219913f40c002b807be3239d4666a5284b
When we just had CycleCollectedJSContext (and no CycleCollectedJSRuntime) a
weird thing happened at shutdown:
1. We would call JS_DestroyContext from ~CycleCollectedJSContext. By that time,
the ~XPCJSContext destructor had already finished.
2. Destroying the context runs a final GC. That GC would call back into various
GC callbacks, such as TraceBlackJS and TraceGrayJS.
3. These callbacks would do a virtual method call:
http://searchfox.org/mozilla-central/rev/876c7dd30586f9c6f9c99ef7444f2d73c7acfe7c/xpcom/base/CycleCollectedJSRuntime.cpp#791
4. Normally this method call would call into
XPCContext::TraceNativeBlackRoots. However, C++ changes the vtable for an
object during destruction. So we would only call CycleCollectedJSContext's
version of TraceNativeBlackRoots, which is empty. So we never traced anything.
When I moved this code into the runtime, we actually do call into
XPCJSRuntime::TraceNativeBlackRoots at that time. So the behavior changed, and
that was causing crashes once I nulled out the TLS as you asked. So I removed
these callbacks for the last GC.
MozReview-Commit-ID: 3do13bjpwQj
This patch keeps a list of all the cooperatively scheduled contexts that are
linked to a runtime. In places where we need to iterate over all contexts (for
GC, specifically), it iterates over the list.
MozReview-Commit-ID: 3pKJX78f2l0
This change moves most of the logic for the threadsafety check into
nsAutoOwningThread, rather than having part of the logic live in
nsAutoOwningThread and part of the logic live in nsDebug.h. Changing
this also forces us to clean up a couple of places that replicated the
logic that lived in nsDebug.h as well.
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
To run JS in separate cooperative threads, we need to split up per-thread state
from per-runtime state. This patch does that for XPConnect.
MozReview-Commit-ID: 407SlJ7nR6v
This is necessary to allow helper threads to attempt large allocations and recover from fragmentation situations with the LargeAllocationFailureCallback.
MozReview-Commit-ID: AyA3pbXcaYy
--HG--
extra : rebase_source : 7a5feb779b690ec7f123481e76f2390c850dac91
The header uses nsDataHashtable, but not nsTHashtable.
MozReview-Commit-ID: 1wxmqjTyPMS
--HG--
extra : rebase_source : 869a63c52f688e731343fab7ae0b1f3f9eaec5da
This patch makes the error codes in nsError.h be generated by a python script.
This gives us the opportunity to add rust code generation in parallel with the
C++ code generation, which will happen in part 2.
This patch also reworks the name calculation in ErrorNames.cpp to use generated
code by the python script.
MozReview-Commit-ID: 5wxbdZwxe7q
This patch makes the error codes in nsError.h be generated by a python script.
This gives us the opportunity to add rust code generation in parallel with the
C++ code generation, which will happen in part 2.
This patch also reworks the name calculation in ErrorNames.cpp to use generated
code by the python script.
MozReview-Commit-ID: 5wxbdZwxe7q
This uses std::atomic rather than mozilla::Atomic since mozilla::Atomic
does not support using different memory synchronization for different
atomic operations on the same variable.
The added comments could use careful review since, while they reflect my
understanding of the issue, I don't consider myself an expert on the
topic.
MozReview-Commit-ID: 7xByCXt17Dr
--HG--
extra : transplant_source : %8DM%88%E8%B7%B4%D8a%D6%F5%3F%9B%DC%09X%F3%7C%98%DE%21
This uses std::atomic rather than mozilla::Atomic since mozilla::Atomic
does not support using different memory synchronization for different
atomic operations on the same variable.
The added comments could use careful review since, while they reflect my
understanding of the issue, I don't consider myself an expert on the
topic.
MozReview-Commit-ID: 7xByCXt17Dr
--HG--
extra : transplant_source : 8%8Ci%CC%EA%0F%CF%C7%3E%F1%93%F5%C9%ED9%84%F9%3Evx
For testing purposes it will be useful to be able to trigger crashes in Rust
code. Being able to trigger a panic seems like a good place to start. This
will make it easier to validate improvements in crash reporting.
MozReview-Commit-ID: Bh5rBieLLWW
--HG--
rename : toolkit/crashreporter/test/unit/test_crash_moz_crash.js => toolkit/crashreporter/test/unit/test_crash_rust_panic.js
extra : rebase_source : ba9f626ca2d2852f966e93401b8f8f7543615310
extra : source : 8c9117de1e7f40af42b7cbce25bc3780c032fe45
For testing purposes it will be useful to be able to trigger crashes in Rust
code. Being able to trigger a panic seems like a good place to start. This
will make it easier to validate improvements in crash reporting.
MozReview-Commit-ID: Bh5rBieLLWW
--HG--
rename : toolkit/crashreporter/test/unit/test_crash_moz_crash.js => toolkit/crashreporter/test/unit/test_crash_rust_panic.js
extra : rebase_source : 0ac96469629a7a933fcf3bf6720c448db45543eb
extra : source : 8c9117de1e7f40af42b7cbce25bc3780c032fe45
It's a very general mechanism for replacing the implementation of
printf_stderr().
It's primarily used by the profiler, sparingly, and not in an important way.
Worse, it prevents us from using MOZ_LOG in the profiler, which is something I
want. Because if any code that locks gPSMutex also calls MOZ_LOG, that then
calls printf_stderr(), which calls profiler_log(), which locks gPSMutex, which
deadlocks.
The only other use of set_stderr_callback() is for the ultra-hacky,
for-local-use-only copy_stderr_to_file() function, which was added for B2G
debugging and is no longer necessary.
This patch removes set_stderr_callback() altogether.
--HG--
extra : rebase_source : d31ecb482fe5899f62dc56a38e87d91f9271bab0
