| c4695dfdab80c280c98a89c20e027a3804191585 |
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15-Jan-2016 |
Richard Uhler <ruhler@google.com> |
Always use pendingNext to test enqueability of references.
Also clean up a misleading comment in a reference queue test.
Bug: 24404957
Change-Id: Ieea4788039ecef73cba1871fb480a439bf65b499
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| 90443477f9a0061581c420775ce3b7eeae7468bc |
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17-Jul-2015 |
Mathieu Chartier <mathieuc@google.com> |
Move to newer clang annotations
Also enable -Wthread-safety-negative.
Changes:
Switch to capabilities and negative capabilities.
Future work:
Use capabilities to implement uninterruptible annotations to work
with AssertNoThreadSuspension.
Bug: 20072211
Change-Id: I42fcbe0300d98a831c89d1eff3ecd5a7e99ebf33
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| 97509954404d031594b2ecbda607314d169d512e |
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13-Jul-2015 |
Mathieu Chartier <mathieuc@google.com> |
Clean up GC callbacks to be virtual methods
Change-Id: Ia08034a4e5931c4fcb329c3bd3c4b1f301135735
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| 414369a2e3f23e1408fc1cbf4f623014bd95cb8f |
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04-May-2015 |
Mathieu Chartier <mathieuc@google.com> |
Add some more DISALLOW_COPY_AND_ASSIGN
May help prevent bugs maybe.
(cherry picked from commit 3130cdf29eb203be0c38d1107a65d920ec39c106)
Change-Id: Ie73d469dfcd078492ecb3aa28682b42707221202
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| 3130cdf29eb203be0c38d1107a65d920ec39c106 |
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04-May-2015 |
Mathieu Chartier <mathieuc@google.com> |
Add some more DISALLOW_COPY_AND_ASSIGN
May help prevent bugs maybe.
Change-Id: Ie73d469dfcd078492ecb3aa28682b42707221202
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| 9e2094f921b63582e84d65849b1c5c6dc4d22b44 |
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12-Dec-2014 |
Mathieu Chartier <mathieuc@google.com> |
Add ReferenceQueue test
Also cleaned up reference queue.
TODO: Add tests for missing functionality.
Bug: 10808403
Change-Id: I182f9cb69022fe542ea9e53d4c6d35cff90af332
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| 677cd61ad05d993c4d3b22656675874f06d6aabc |
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15-Oct-2014 |
Ian Rogers <irogers@google.com> |
Make ART compile with GCC -O0 again.
Tidy up InstructionSetFeatures so that it has a type hierarchy dependent on
architecture.
Add to instruction_set_test to warn when InstructionSetFeatures don't agree
with ones from system properties, AT_HWCAP and /proc/cpuinfo.
Clean-up class linker entry point logic to not return entry points but to
test whether the passed code is the particular entrypoint. This works around
image trampolines that replicate entrypoints.
Bug: 17993736
(cherry picked from commit 6f3dbbadf4ce66982eb3d400e0a74cb73eb034f3)
Change-Id: I3e7595f437db4828072589d475a5453b7f31003e
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| 6f3dbbadf4ce66982eb3d400e0a74cb73eb034f3 |
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15-Oct-2014 |
Ian Rogers <irogers@google.com> |
Make ART compile with GCC -O0 again.
Tidy up InstructionSetFeatures so that it has a type hierarchy dependent on
architecture.
Add to instruction_set_test to warn when InstructionSetFeatures don't agree
with ones from system properties, AT_HWCAP and /proc/cpuinfo.
Clean-up class linker entry point logic to not return entry points but to
test whether the passed code is the particular entrypoint. This works around
image trampolines that replicate entrypoints.
Bug: 17993736
Change-Id: I5f4b49e88c3b02a79f9bee04f83395146ed7be23
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| a5a53efea976af505f4f849b5925d5e14c4f8e5c |
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12-Sep-2014 |
Mathieu Chartier <mathieuc@google.com> |
Add native support for FinalizerList.makeCircularListIfUnenqueued
Called from FinalizerReference.enqueueSentinelReference to prevent
a race where the GC updates pendingNext of the sentinel reference
before enqueueSentinelReference.
Bug: 17462553
(cherry picked from commit 3256166df40981f1f1997a5f00303712277c963f)
Change-Id: I7ad2fd250c2715d1aeb919bd548ef9aab24f30a2
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| 3256166df40981f1f1997a5f00303712277c963f |
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12-Sep-2014 |
Mathieu Chartier <mathieuc@google.com> |
Add native support for FinalizerList.makeCircularListIfUnenqueued
Called from FinalizerReference.enqueueSentinelReference to prevent
a race where the GC updates pendingNext of the sentinel reference
before enqueueSentinelReference.
Bug: 17462553
Change-Id: I7ad2fd250c2715d1aeb919bd548ef9aab24f30a2
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| 52e4b43d62896b56f8c2bd041e528472bb4a0d8d |
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10-Jun-2014 |
Mathieu Chartier <mathieuc@google.com> |
Add mark compact collector.
The mark compact collector is a 4 phase collection, doing a normal
full mark_sweep, calculating forwarding addresses of objects in the
from space, updating references of objects in the from space, and
moving the objects in the from space.
Support is diabled by default since it needs to have non movable
classes and field arrays. Performance numbers is around 50% as fast.
The main advantage that this has over semispace is that the worst
case memory usage is 50% since we only need one space isntead of two.
TODO: Make field arrays and classes movable. This causes complication
since Object::VisitReferences relies on these, so if we update the
fields of an object but another future object uses this object to
figure out what fields are reference fields it doesn't work.
Bug: 14059466
Change-Id: I661ed3b71ad4dde124ef80312c95696b4a5665a1
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| 308351ada0008b0cbe1a5afc31c302c975554ee4 |
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15-Jun-2014 |
Mathieu Chartier <mathieuc@google.com> |
Change reference processing to use heap references.
Removes several SetReferents for updating moved referents. Cleaned
up other aspects of the code.
Change-Id: Ibcb4d713fadea617efee7e936352ddf77ff4c370
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| 530e1b54887b6b5e7d648170096e22a5f1850ea8 |
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10-Jun-2014 |
Fred Shih <ffred@google.com> |
Reduced frequency of blocks for concurrent gc
Immediately return for references that are marked before reference
processing without blocking. Soft references are kept in the queue until
the reference processor stops preserving, after which, all marked
references are removed. Finalizer references will still block on get().
Bug: 15471830
Change-Id: I588fcaef40b79ed7c95a4aa7f4fc2e17ee0c288f
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| 78f7b4c04ab6e8b5581921bc95b67a9beee1c246 |
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06-May-2014 |
Mathieu Chartier <mathieuc@google.com> |
Add concurrent reference processing.
Concurrent reference processing currently works by going into native
code from java.lang.ref.Reference.get(). From there, we have a fast
path if the references aren't being processed which returns the
referent without needing to access any locks. In the slow path we
block until reference processing is complete. It may be possible to
improve the slow path if the referent is blackened.
TODO: Investigate doing the fast path in java code by using racy reads
of a static volatile boolean. This will work as long as there are no
suspend points inbetween the boolean read and referent read.
Bug: 14381653
Change-Id: I1546b55be4691fe4ff4aa6d857b234cce7187d87
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| 8fa2dad7fe7909c8335101d6c8904ae997cdf29f |
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13-Mar-2014 |
Mathieu Chartier <mathieuc@google.com> |
Refactor reference code into mirror namespace.
Added two new files: mirror/reference.h and mirror/reference-inl.h.
Change-Id: Ibe3ff6379aef7096ff130594535b7f7c0b7dabce
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| 719d1a33f6569864f529e5a3fff59e7bca97aad0 |
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06-Mar-2014 |
Ian Rogers <irogers@google.com> |
Enable annotalysis on clang ART builds.
Fix clang build errors aswell as restructure locking/mutex code for correct
thread safety analysis support.
Reorder make dependencies so that host builds build first as they should
provide better compilation errors than target.
Remove host's use of -fno-omit-frame-pointer as it has no value with correct
use of CFI, which we should have.
Change-Id: I72cea8da9a3757b1a0b3acb4081feccb7c6cef90
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| 83c8ee000d525017ead8753fce6bc1020249b96a |
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28-Jan-2014 |
Mathieu Chartier <mathieuc@google.com> |
Add root types and thread id to root visiting.
Enables us to pass the root type and thread id to hprof.
Bug: 12680863
Change-Id: I6a0f1f9e3aa8f9b4033d695818ae7ca3460d67cb
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| ef7d42fca18c16fbaf103822ad16f23246e2905d |
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06-Jan-2014 |
Ian Rogers <irogers@google.com> |
Object model changes to support 64bit.
Modify mirror objects so that references between them use an ObjectReference
value type rather than an Object* so that functionality to compress larger
references can be captured in the ObjectRefererence implementation.
ObjectReferences are 32bit and all other aspects of object layout remain as
they are currently.
Expand fields in objects holding pointers so they can hold 64bit pointers. Its
expected the size of these will come down by improving where we hold compiler
meta-data.
Stub out x86_64 architecture specific runtime implementation.
Modify OutputStream so that reads and writes are of unsigned quantities.
Make the use of portable or quick code more explicit.
Templatize AtomicInteger to support more than just int32_t as a type.
Add missing, and fix issues relating to, missing annotalysis information on the
mutator lock.
Refactor and share implementations for array copy between System and uses
elsewhere in the runtime.
Fix numerous 64bit build issues.
Change-Id: I1a5694c251a42c9eff71084dfdd4b51fff716822
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| 39e3261168e7761fea6d873494d7c5d191285791 |
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13-Nov-2013 |
Mathieu Chartier <mathieuc@google.com> |
Refactor reference queues.
Refactored the reference queue processing to reside in the heap code.
This removes significant code duplication in the semispace and
marksweep garbage collectors.
Changed the soft reference behaviour to preserve all soft references
unless the GC requires them to be cleared to avoid an out of memory
error. It may be worth investigating a better heuristic in the
future to preserve soft references by LRU order.
Change-Id: I1f3ff5bd4b3c5149271f4bb4fc94ba199e2f9bc2
|