| 41b175aba41c9365a1c53b8a1afbd17129c87c14 |
|
19-May-2015 |
Vladimir Marko <vmarko@google.com> |
ART: Clean up arm64 kNumberOfXRegisters usage.
Avoid undefined behavior for arm64 stemming from 1u << 32 in
loops with upper bound kNumberOfXRegisters.
Create iterators for enumerating bits in an integer either
from high to low or from low to high and use them for
<arch>Context::FillCalleeSaves() on all architectures.
Refactor runtime/utils.{h,cc} by moving all bit-fiddling
functions to runtime/base/bit_utils.{h,cc} (together with
the new bit iterators) and all time-related functions to
runtime/base/time_utils.{h,cc}. Improve test coverage and
fix some corner cases for the bit-fiddling functions.
Bug: 13925192
(cherry picked from commit 80afd02024d20e60b197d3adfbb43cc303cf29e0)
Change-Id: I905257a21de90b5860ebe1e39563758f721eab82
|
| 2cebb24bfc3247d3e9be138a3350106737455918 |
|
22-Apr-2015 |
Mathieu Chartier <mathieuc@google.com> |
Replace NULL with nullptr
Also fixed some lines that were too long, and a few other minor
details.
Change-Id: I6efba5fb6e03eb5d0a300fddb2a75bf8e2f175cb
|
| 12d625f87bcd6c4059a205bb39007a255f57f382 |
|
13-Mar-2015 |
Mathieu Chartier <mathieuc@google.com> |
Change method verifiers to be thread local roots
Bug: 10921004
Change-Id: I3a1425d76cd380587ba67ef6d5ec1227564e55bf
|
| 2435a43f6c851c23922d8508fb17c6079248201c |
|
13-Mar-2015 |
bowen_lai <bowen_lai@htc.com> |
ART: Add entries_ lock for race condition
GCDaemon thread would visit incorrect RegType content when there is
another thread initializing classes.
Add a lock to protect entries_.
https://code.google.com/p/android/issues/detail?id=159849
Change-Id: Iabaa1c7f5cc5106b60a6e3856152e0797e8a5d6d
|
| 91e56692c6bd9fa1d41951ee7dc311f19461f4be |
|
03-Mar-2015 |
Mathieu Chartier <mathieuc@google.com> |
Wait for threads to finish unregistering
There was a race where Thread::join would return before the thread was
unregistered. This caused a problem with Daemons.stop since the thread
list could get deleted before the daemon thread was removed from list_.
This caused occasional "Request to unregister unattached thread"
errors and warnings.
The fix is to wait until threads finish registering before destroying
the thread list. The only threads which can be unregistering at this
point are the daemons we stopped earlier during the runtime shutdown
process. The issue is that thread join finishes before we remove the
thread from the thread list.
Also some cleanup.
Bug: 18713034
Change-Id: I8921122fe8462643a6b814b5f00632481e3831fb
|
| 227dfb0a25d020f0571eb194b98eca350bd6d036 |
|
14-Jan-2015 |
tony.ys_liu <tony.ys_liu@htc.com> |
Fix false alarm on thread suspend timeout
Root cause:
CLOCK_REALTIME will jump backward/forward when system time-of-day clock is changed.
It implies now_abs_ts will jump a lot across end_abs_ts.
Then, it makes a false alarm (process crash) on thread suspend timeout when doing ComputeRelativeTimeSpec.
if (ComputeRelativeTimeSpec(&rel_ts, end_abs_ts, now_abs_ts)) {
return false; // Timed out.
}
Solution:
Use CLOCK_MONOTONIC instead
Bug: 19296054
Bug: 19268145
(cherry picked from commit 071e48ecfc95b1c67b07c975190d51f646ac4276)
Change-Id: I68fa5afda75e53373e836dd7779821aeb6f1bd46
(cherry picked from commit 7d9ad8bb71df2b1dc957121ef2ebee69d96f8e0c)
|
| 7d9ad8bb71df2b1dc957121ef2ebee69d96f8e0c |
|
14-Jan-2015 |
tony.ys_liu <tony.ys_liu@htc.com> |
Fix false alarm on thread suspend timeout
Root cause:
CLOCK_REALTIME will jump backward/forward when system time-of-day clock is changed.
It implies now_abs_ts will jump a lot across end_abs_ts.
Then, it makes a false alarm (process crash) on thread suspend timeout when doing ComputeRelativeTimeSpec.
if (ComputeRelativeTimeSpec(&rel_ts, end_abs_ts, now_abs_ts)) {
return false; // Timed out.
}
Solution:
Use CLOCK_MONOTONIC instead
Bug: 19296054
(cherry picked from commit 071e48ecfc95b1c67b07c975190d51f646ac4276)
Change-Id: I68fa5afda75e53373e836dd7779821aeb6f1bd46
|
| 4c10110b144eafa47333dc9d30da9220a03e7c08 |
|
28-Jan-2015 |
Mathieu Chartier <mathieuc@google.com> |
Print lock level in ExclusiveUnlock
Bug: 18713034
Change-Id: I83e1bf1e2023b595d8ddf20008935c75b2b0aa0c
|
| 8f1fa100ee037131976c616ec72a6608dccb51e2 |
|
23-Jan-2015 |
Andreas Gampe <agampe@google.com> |
ART: On shutdown, only warn on mutex contention
Do not abort, as daemon threads may still be active.
Bug: 17894429
(cherry picked from commit c0440f69ebf051ff2ffdc00de51005a040014462)
Change-Id: I7c1d50ff8d4a5e150279e703a69c8f2f1d423e6b
|
| c0440f69ebf051ff2ffdc00de51005a040014462 |
|
23-Jan-2015 |
Andreas Gampe <agampe@google.com> |
ART: On shutdown, only warn on mutex contention
Do not abort, as daemon threads may still be active.
Bug: 17894429
Change-Id: I7c1d50ff8d4a5e150279e703a69c8f2f1d423e6b
|
| 071e48ecfc95b1c67b07c975190d51f646ac4276 |
|
14-Jan-2015 |
tony.ys_liu <tony.ys_liu@htc.com> |
Fix false alarm on thread suspend timeout
Root cause:
CLOCK_REALTIME will jump backward/forward when system time-of-day clock is changed.
It implies now_abs_ts will jump a lot across end_abs_ts.
Then, it makes a false alarm (process crash) on thread suspend timeout when doing ComputeRelativeTimeSpec.
if (ComputeRelativeTimeSpec(&rel_ts, end_abs_ts, now_abs_ts)) {
return false; // Timed out.
}
Solution:
Use CLOCK_MONOTONIC instead
Change-Id: I768af52b05ee1548bb291f7d5e2f389ec85e0e71
|
| eb0a179508f3c0533dd7db86ec7ab9dfa3773256 |
|
16-Dec-2014 |
Mathieu Chartier <mathieuc@google.com> |
Add more logging to Mutex::ExclusiveUnlock
Bug: 18713034
Change-Id: I9db5ca0a25592714ac9e292a2b8d46ef73779c8b
|
| cef50f0487929f72183623bc2a5819cf3a63bff6 |
|
10-Dec-2014 |
Mathieu Chartier <mathieuc@google.com> |
Stop daemon threads in runtime shutdown
Ensure that daemons are stopped and joins before bringing down the
runtime. This fixes bugs related to native code still running when
we shutdown the runtime.
Also changed the mutex destructor to allow contenders if we are
deleting a monitor lock level mutex.
Bug: 18577101
Change-Id: I6457b35fd69c6997b9003b5f15f39861749843a9
|
| db978719dbcb73fc6acfd193561445c4462786b8 |
|
09-Dec-2014 |
Nicolas Geoffray <ngeoffray@google.com> |
Revert "Tidy gAborting."
Creates infinite loop: b/18674776.
This reverts commit 015b137efb434528173779bc3ec8d72494456254.
Change-Id: I67fe310d2e95ee2ec37bec842be06fb1123b6f4e
|
| 015b137efb434528173779bc3ec8d72494456254 |
|
05-Dec-2014 |
Ian Rogers <irogers@google.com> |
Tidy gAborting.
Reduce scope to Runtime::Abort and short-cut recursive case earlier. gAborting
remains global to avoid two fatal errors in thread and the verifier.
Change-Id: Ibc893f891ffee9a763c65cde9507d99083d47b3f
|
| 90675a77fa03850ebd46280e60b0ff54b8d5eb79 |
|
24-Nov-2014 |
Andreas Gampe <agampe@google.com> |
ART: Avoid recursive abort
Bug: 18469797
Change-Id: Ided50bec3377034dd9a995f9f0700a795adb3940
|
| 4ad5cd3e7d519484559ef778d96fb3f0be8919fa |
|
12-Nov-2014 |
Ian Rogers <irogers@google.com> |
Modify the behavior of thread suspend shootouts.
The thread doing the suspension doesn't attempt to suspend the other thread
unless it knows another thread isn't trying to suspend it. Use the suspend
count, and its lock, for this purpose.
Re-enable ThreadStress test.
Bug: 15446488
Change-Id: Idd34410c7b89d8abd6973e5699a15ca699472c78
|
| 51d212ef31945743abe8a469707aaa25bab95357 |
|
24-Oct-2014 |
Ian Rogers <irogers@google.com> |
Make out-of-line mutex contention dependent on ART_USE_FUTEXES.
Fix Mac build. Also fix Linux compilation if ART_USE_FUTEXES is disabled.
Change-Id: I51cb1d70b5548ea6121ff7567b9546bad0894e01
|
| cf7f19135f0e273f7b0136315633c2abfc715343 |
|
23-Oct-2014 |
Ian Rogers <irogers@google.com> |
C++11 related clean-up of DISALLOW_..
Move DISALLOW_COPY_AND_ASSIGN to delete functions. By no having declarations
with no definitions this prompts better warning messages so deal with these
by correcting the code.
Add a DISALLOW_ALLOCATION and use for ValueObject and mirror::Object.
Make X86 assembly operand types ValueObjects to fix compilation errors.
Tidy the use of iostream and ostream.
Avoid making cutils a dependency via mutex-inl.h for tests that link against
libart. Push tracing dependencies into appropriate files and mutex.cc.
x86 32-bit host symbols size is increased for libarttest, avoid copying this
in run-test 115 by using symlinks and remove this test's higher than normal
ulimit.
Fix the RunningOnValgrind test in RosAllocSpace to not use GetHeap as it
returns NULL when the heap is under construction by Runtime.
Change-Id: Ia246f7ac0c11f73072b30d70566a196e9b78472b
|
| c7dd295a4e0cc1d15c0c96088e55a85389bade74 |
|
22-Oct-2014 |
Ian Rogers <irogers@google.com> |
Tidy up logging.
Move gVerboseMethods to CompilerOptions. Now "--verbose-methods=" option to
dex2oat rather than runtime argument "-verbose-methods:".
Move ToStr and Dumpable out of logging.h, move LogMessageData into logging.cc
except for a forward declaration.
Remove ConstDumpable as Dump methods are all const (and make this so if not
currently true).
Make LogSeverity an enum and improve compile time assertions and type checking.
Remove log_severity.h that's only used in logging.h.
With system headers gone from logging.h, go add to .cc files missing system
header includes.
Also, make operator new in ValueObject private for compile time instantiation
checking.
Change-Id: I3228f614500ccc9b14b49c72b9821c8b0db3d641
|
| 677cd61ad05d993c4d3b22656675874f06d6aabc |
|
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
|
| 6f3dbbadf4ce66982eb3d400e0a74cb73eb034f3 |
|
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
|
| 5869a2c27ee0dbd7b420614c76ff14a706f0c5fb |
|
08-Oct-2014 |
Mathieu Chartier <mathieuc@google.com> |
Dump mutator lock for thread suspend timeout
Should help us see if thread suspend timeouts are due to someone
holding on the mutator lock for too long or if it is a missed
futex wake.
(cherry picked from commit f924d2381a5ea53967ba1e279766d601b9be05ea)
Bug: 17837911
Change-Id: I3417156a78f574076d5da17c86836c5a7c76084a
|
| f924d2381a5ea53967ba1e279766d601b9be05ea |
|
08-Oct-2014 |
Mathieu Chartier <mathieuc@google.com> |
Dump mutator lock for thread suspend timeout
Should help us see if thread suspend timeouts are due to someone
holding on the mutator lock for too long or if it is a missed
futex wake.
Bug: 17837911
Change-Id: I3417156a78f574076d5da17c86836c5a7c76084a
|
| 9ef78b59da51080882e47505896b420977fd79ae |
|
26-Sep-2014 |
Mathieu Chartier <mathieuc@google.com> |
Fix broken runtime SetStatsEnabled logic
Previously, Runtime::SetStatsEnabled wouldn't take stats_enabled_
into account when deciding whether or not to increment / decrement
teh stats enabled counter. This resulted in counter underflows and
other errors which caused some CTS tests to fail.
Also added some locking to prevent race conditions.
Bug: 17360878
(cherry picked from commit a98ffd745bbecb2e84a492194950c0b94966546b)
Change-Id: I21d241a58d35bd6a607aa2305c6da81720bd0886
|
| a98ffd745bbecb2e84a492194950c0b94966546b |
|
26-Sep-2014 |
Mathieu Chartier <mathieuc@google.com> |
Fix broken runtime SetStatsEnabled logic
Previously, Runtime::SetStatsEnabled wouldn't take stats_enabled_
into account when deciding whether or not to increment / decrement
teh stats enabled counter. This resulted in counter underflows and
other errors which caused some CTS tests to fail.
Also added some locking to prevent race conditions.
Bug: 17360878
Change-Id: I779237d55dda4f35054a4d27fb2c660a38750fc0
|
| 69dbec6d9d55eeb2867949c2791d01dc9aa916c8 |
|
16-Sep-2014 |
Jeff Hao <jeffhao@google.com> |
Avoid suspending for alloc trace enabling when already suspended.
Bug: 17499772
(cherry picked from commit 1d6ee090fddd4bfd35c304d6ceb929d5c529dfcc)
Change-Id: Id09809c476c685f0a197ee75bb08638931364efd
|
| 1d6ee090fddd4bfd35c304d6ceb929d5c529dfcc |
|
16-Sep-2014 |
Jeff Hao <jeffhao@google.com> |
Avoid suspending for alloc trace enabling when already suspended.
Bug: 17499772
Change-Id: Id98c10967b28e8859e5ac46f5878c304fb85c498
|
| a5a53efea976af505f4f849b5925d5e14c4f8e5c |
|
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
|
| 3256166df40981f1f1997a5f00303712277c963f |
|
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
|
| 7b078e8c04f3e1451dbdd18543c8b9692b5b067e |
|
10-Sep-2014 |
Ian Rogers <irogers@google.com> |
Compile time performance improvements focusing on interpret-only.
Reduce virtual method dispatch in the method verifier and make more code
inline-able.
Add a StringPiece with const char* equality operator to avoid redundant
StringPieces and strlens.
Remove back link from register line to verifier and pass as argument to reduce
size of RegisterLine.
Remove instruction length from instruction flags and compute from the
instruction, again to reduce size.
Add suspend checks to resolve and verify to allow for more easy monitor
inflation and reduce contention on Locks::thread_list_suspend_thread_lock_.
Change ThrowEarlierClassFailure to throw pre-allocated exception.
Avoid calls to Thread::Current() by passing self.
Template specialize IsValidClassName.
Make ANR reporting with SIGQUIT run using checkpoints rather than suspending
all threads. This makes the stack/lock analysis less lock error prone.
Extra Barrier assertions and condition variable time out is now returned as a
boolean both from Barrier and ConditionVariable::Wait.
2 threaded host x86-64 interpret-only numbers from 341 samples:
Before change: Avg 176.137ms 99% CI 3.468ms to 1060.770ms
After change: Avg 139.163% 99% CI 3.027ms to 838.257ms
Reduction in average compile time after change is 20.9%.
Slow-down without change is 26.5%.
Bug: 17471626 - Fix bug where RegTypeCache::JavaLangObject/String/Class/Throwable
could return unresolved type when class loading is disabled.
Bug: 17398101
Change-Id: Id59ce3cc520701c6ecf612f7152498107bc40684
|
| 306db81aba41eb244a4e8299cf58ac18ae9999c7 |
|
05-Sep-2014 |
Brian Carlstrom <bdc@google.com> |
Fix numerous issues with DdmVmInternal allocation tracking
Issues addressed:
- Using without JDWP attached caused native crash.
- When buffer is full (64k entries), number of entries reported was 0.
- Disabling tracking after disabling tracking caused native crash.
- Asking for allocations after disabled caused native crash.
- Lock ordering issues between mutator lock and alloc tracker lock.
Adding 098-ddmc test to cover these cases.
Bug: 17392248
(cherry picked from commit a5815065ac0877add9c0db3605d27b4d6c426e61)
Change-Id: Ib0bc18dfcdafcc050ab9dceed3d167dd878d1d7a
|
| f4cb036808b88fe60d71a705b2744284155cbc01 |
|
05-Sep-2014 |
Brian Carlstrom <bdc@google.com> |
Fix numerous issues with DdmVmInternal allocation tracking
Issues addressed:
- Using without JDWP attached caused native crash.
- When buffer is full (64k entries), number of entries reported was 0.
- Disabling tracking after disabling tracking caused native crash.
- Asking for allocations after disabled caused native crash.
- Lock ordering issues between mutator lock and alloc tracker lock.
Adding 098-ddmc test to cover these cases.
Bug: 17392248
Change-Id: I45c0abbfb3dd7a7421aea3bbba2ea8d05225e48b
|
| ed2be1725fb79075892b1a9103487c9d9a95b350 |
|
19-Aug-2014 |
Sebastien Hertz <shertz@google.com> |
Reduce lock contention when debugging
Uses a ReaderWriterMutex for the breakpoint lock to reduce contention during
debugging session.
Also adds missing thread safety annotations on fields and methods related to
instrumentation and debugging.
Bug: 16814665
Bug: 11667502
(cherry picked from commit 59d9d668d4f4286813afe2b4e7c6db839222ce96)
Change-Id: I5f1156da8c6cc8316d6db16e6cfb2470fe289ad3
|
| 59d9d668d4f4286813afe2b4e7c6db839222ce96 |
|
19-Aug-2014 |
Sebastien Hertz <shertz@google.com> |
Reduce lock contention when debugging
Uses a ReaderWriterMutex for the breakpoint lock to reduce contention during
debugging session.
Also adds missing thread safety annotations on fields and methods related to
instrumentation and debugging.
Bug: 16814665
Bug: 11667502
Change-Id: I056cdafa91109e0c83806c8d8df75c37ade0a354
|
| 68d8b42ddec39ec0174162d90d4abaa004d1983e |
|
17-Jul-2014 |
Ian Rogers <irogers@google.com> |
Wire up check JNI force copy mode.
Increase check JNI checks.
Break apart jni_internal.h in to jni_env_ext.h and java_vm_ext.h.
Fix the abuse of ScopedObjectAccess/annotalysis by ScopedCheck in the case
of VM routines.
Make class loader override and shared library class loader JNI global
references rather than mirror pointers.
Clean-ups to native bridge.
Change-Id: If7c6110b5aade7a402bfb67534af86a7b2cdeb55
|
| f3d874c60ee3ada19ce26a5c4e532312b6f3a9e9 |
|
18-Jul-2014 |
Ian Rogers <irogers@google.com> |
Avoid race in single thread suspension.
Don't allow more than one concurrent single thread suspension to avoid
potential cycles and deadlocks where threads try to suspend each other.
Bug: 16364458, 16354227
Change-Id: I907f1d5591a6aa5c241d37d6b4a34f968f98df77
|
| 37f3c968ecd04e77802fe17bb82dabc07de21ca1 |
|
17-Jul-2014 |
Ian Rogers <irogers@google.com> |
Avoid direct use of QuasiAtomic by using Atomic.
Change-Id: I92d0f822cddb2085de7cbb4c44c3a429081892a2
|
| 6093a5c277e54bcd949dd6fac7b3856e5f371d06 |
|
18-Jul-2014 |
Ian Rogers <irogers@google.com> |
Avoid race in single thread suspension.
Don't allow more than one concurrent single thread suspension to avoid
potential cycles and deadlocks where threads try to suspend each other.
Bug: 16364458, 16354227
(cherry picked from commit f3d874c60ee3ada19ce26a5c4e532312b6f3a9e9)
Change-Id: I907f1d5591a6aa5c241d37d6b4a34f968f98df77
|
| c7190697f8665e706f6ebb4ae36fa63c46a32cd5 |
|
09-Jul-2014 |
Ian Rogers <irogers@google.com> |
Remove legacy CAS implementations from mutex.
Removes the use of __sync_bool_compare_and_swap and android_atomic_cas and uses
intention revealing atomic operations from art::Atomic (which will eventually
give way to std::atomic).
Change-Id: Iea44e1923f6706ec04b5459fe25427282c189a7e
|
| 74240819ae09e29b2753ef38f4eb4be1c2762e2e |
|
17-Apr-2014 |
Andreas Gampe <agampe@google.com> |
Use memory chunks for monitors on LP64
Monitor IDs in lock words are only 30b. On a 32b system that works
fine, as memory is usually aligned enough that shifting works out.
On 64b systems, the virtual memory space is too large for that.
This adds memory chunks into which we allocate the monitors so that
we have base_addr + offset and can use the offset as the monitor ID.
To allow for relatively compact but growable storage, we use a list
of chunks.
Added a global lock for the monitor pool.
Change-Id: I0e290c4914a2556e0b2eef9902422d7c4dcf536d
|
| c5f17732d8144491c642776b6b48c85dfadf4b52 |
|
06-Jun-2014 |
Ian Rogers <irogers@google.com> |
Remove deprecated WITH_HOST_DALVIK.
Bug: 13751317
Fix the Mac build:
- disable x86 selector removal that causes OS/X 10.9 kernel panics,
- madvise don't need does zero memory on the Mac, factor into MemMap
routine,
- switch to the elf.h in elfutils to avoid Linux kernel dependencies,
- we can't rely on exclusive_owner_ being available from other pthread
libraries so maintain our own when futexes aren't available (we
can't rely on the OS/X 10.8 hack any more),
- fix symbol naming in assembly code,
- work around C library differences,
- disable backtrace in DumpNativeStack to avoid a broken libbacktrace
dependency,
- disable main thread signal handling logic,
- align the stack in stub_test,
- use $(HOST_SHLIB_SUFFIX) rather than .so in host make file variables.
Not all host tests are passing on the Mac with this change. dex2oat
works as does running HelloWorld.
Change-Id: I5a232aedfb2028524d49daa6397a8e60f3ee40d3
|
| 3035961cb41865b80b927546be0c708b6389cec6 |
|
22-May-2014 |
Hans Boehm <hboehm@google.com> |
Clean up and augment Atomic class. Replace QuasiAtomic MemBars.
Add a number of missing C++11 operations to Atomic class.
Invoke the 64 bit routines in QuasiAtomic when necessary.
Replace QuasiAtomic membars with fences that correspond to C++11 fences.
QuasiAtomic was moved to the top of the file. Only fence implementations
actually changed.
This replaces some buggy uses of MembarStoreStore, as reported
in b/14685856 .
Avoid some redundant fences for long volatile operations.
Incompletely converts low-level memory access operations to Atomic.
Change-Id: Iea828431a0cea46540eb74fcaa02071cab6fdcda
|
| 3eed93dd5be03e5539827bebf0f414251a12e15e |
|
04-Jun-2014 |
Hiroshi Yamauchi <yamauchi@google.com> |
Verify there's no mem map gap for immune region not to break.
This adds code that verifies that there's no memory map gap between
the image space and the main space so that the immune region
functionality won't silently break. For example, if there's a gap and
a large object is allocated in that gap, the large object is
incorrectly part of the immune region and the marking breaks.
Bug: 14059466
Change-Id: Ie6ed82988d74b6d0562ebbbaac96ee43c15b14a6
|
| ffddfdf6fec0b9d98a692e27242eecb15af5ead2 |
|
03-Jun-2014 |
Tim Murray <timmurray@google.com> |
DO NOT MERGE
Merge ART from AOSP to lmp-preview-dev.
Change-Id: I0f578733a4b8756fd780d4a052ad69b746f687a9
|
| 7f0a6d6a699111e254a91c3980eb0522d4f8f0cd |
|
26-May-2014 |
Nicolas Geoffray <ngeoffray@google.com> |
Fix x86_64 test failures.
Change-Id: I97b3d1755d2e205ca7423248a2af37f1875d5116
|
| 9e36931cc79ca665908db9575126881d1cfdea5a |
|
21-May-2014 |
Chao-ying Fu <chao-ying.fu@intel.com> |
Move modify_ldt_lock into global lock order.
Mutex modify_ldt_lock was being removed during runtime shutdown while
daemons thread may still detach. Avoid this by placing in global lock
order.
This fixes cts dalvik vm-tests-tf that hang on some x86 devices.
By irogers: also, tidy global locks to agree with enum constants and
add extra verification that the global annotalysis order agrees with
the LockLevel order. Bumped the oat version and moved the locks as
LockLevel additions previously caused entrypoints to be moved. Make
unattached lock not handle the default mutex level case by moving the
allocated thread ids lock into the global order.
Change-Id: I9d03f19d44ea254accf0ceae8022563c77f7a02f
Signed-off-by: Chao-ying Fu <chao-ying.fu@intel.com>
|
| 3e5cf305db800b2989ad57b7cde8fb3cc9fa1b9e |
|
21-May-2014 |
Ian Rogers <irogers@google.com> |
Begin migration of art::Atomic to std::atomic.
Change-Id: I4858d9cbed95e5ca560956b9dabd976cebe68333
|
| 73d1e17b3afc7d5e56184f90bf819dc64956448a |
|
12-Apr-2014 |
Mathieu Chartier <mathieuc@google.com> |
Enable reading page map without lock in RosAlloc::BulkFree
Enabling this flag greatly reduces how much time was spent in the GC.
It was not done previously since it was regressing MemAllocTest. With
these RosAlloc changes, the benchmark score no longer regresses after
we enable the flag.
Changed Run::AllocSlot to only have one mode of allocation. The new
mode is finding the first free bit in the bitmap. This was
previously the slow path but is now the fast path. Some optimizations
which enabled this include always having the alloc bitmap bits which
correspond to invalid slots be set to 1. This prevents us from needing
a bound check since we will never end up allocating there.
Changed revoking thread local buffer to point to an invalid run. The
invalid run is just a run which always has all the allocation bits set
to 1. When a thread attempts to do a thread local allocation from here
it will always fail and go slow path. This eliminates the need for a
null check for revoked runs.
Changed zeroing of memory to happen during free, AllocPages should
always return zeroed memory. Added prefetching which happens when we
allocate a run.
Some refactoring to reduce duplicated code.
Ergonomics changes: Changed kStickyGcThroughputAdjustment to 1.0,
this helps reduce GC time.
Measurements (3 samples per benchmark):
Before: MemAllocTest scores: 3463, 3445, 3431
EvaluateAndApplyChanges score | total GC time
Iter 1: 3485, 23.602436s
Iter 2: 3434, 22.499882s
Iter 3: 3483, 23.253274s
After: MemAllocTest scores: 3495, 3417, 3409
EvaluateAndApplyChanges score | total GC time:
Iter 1: 3375, 17.463462s
Iter 2: 3358, 16.185188s
Iter 3: 3367, 15.822312s
Bug: 8788501
Bug: 11790317
Bug: 9986565
Change-Id: Ifd273a054824028dabed27c07c081dde1816f93c
|
| 4d25df3f76f864b7629ac8c0046d46997f293d8d |
|
21-Mar-2014 |
Sebastien Hertz <shertz@google.com> |
Refactor deoptimization support in debugger
This CL prepares breakpoint support for inlined methods where we'll have to
deoptimize everything.
We move deoptimization-related information to Dbg class only (deoptimization
request queue, full deoptimization event count and deoptimization lock). We
replace MethodInstrumentionRequest by DeoptimizationRequest. This is used to
know which kind of deoptimization is required for a particular event.
It also simplifies lock ordering a bit during event setup: we no longer need to
hold the deoptimization lock while holding the breakpoint lock. Moreover, the
deoptimization lock should be held only after the event list lock.
Bug: 12187616
Change-Id: Iff13f004adaeb25e5d609238bacce0b9720510e6
|
| 51b71028661092e8860cca4f8ca79848e03cdc2c |
|
04-Mar-2014 |
Narayan Kamath <narayan@google.com> |
Remove use of pthread_cond_timedwait_monotonic.
Use posix compliant pthread_condattr_setclock instead.
Also, remove usage of HAVE_TIMEDWAIT_MONOTONIC and replace
it with a specific reference to the only supported platform
that doesn't have it.
Change-Id: I933f05c5b4965bab88ccd8e3e26c91549ed4184d
|
| 719d1a33f6569864f529e5a3fff59e7bca97aad0 |
|
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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| ef7d42fca18c16fbaf103822ad16f23246e2905d |
|
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
|
| b122a4bbed34ab22b4c1541ee25e5cf22f12a926 |
|
20-Nov-2013 |
Ian Rogers <irogers@google.com> |
Tidy up memory barriers.
Change-Id: I937ea93e6df1835ecfe2d4bb7d84c24fe7fc097b
|
| 34e82934546bd470283346907bd7b74990797c56 |
|
13-Nov-2013 |
Mathieu Chartier <mathieuc@google.com> |
Fix remaining mips build issues.
Missed a few things in mutex.cc.
Change-Id: I1c3acfc5faa2511490170199c03ab74c1f23022a
|
| 590fee9e8972f872301c2d16a575d579ee564bee |
|
13-Sep-2013 |
Mathieu Chartier <mathieuc@google.com> |
Compacting collector.
The compacting collector is currently similar to semispace. It works by
copying objects back and forth between two bump pointer spaces. There
are types of objects which are "non-movable" due to current runtime
limitations. These are Classes, Methods, and Fields.
Bump pointer spaces are a new type of continuous alloc space which have
no lock in the allocation code path. When you allocate from these it uses
atomic operations to increase an index. Traversing the objects in the bump
pointer space relies on Object::SizeOf matching the allocated size exactly.
Runtime changes:
JNI::GetArrayElements returns copies objects if you attempt to get the
backing data of a movable array. For GetArrayElementsCritical, we return
direct backing storage for any types of arrays, but temporarily disable
the GC until the critical region is completed.
Added a new runtime call called VisitObjects, this is used in place of
the old pattern which was flushing the allocation stack and walking
the bitmaps.
Changed image writer to be compaction safe and use object monitor word
for forwarding addresses.
Added a bunch of added SIRTs to ClassLinker, MethodLinker, etc..
TODO: Enable switching allocators, compacting on background, etc..
Bug: 8981901
Change-Id: I3c886fd322a6eef2b99388d19a765042ec26ab99
|
| d9c4fc94fa618617f94e1de9af5f034549100753 |
|
02-Oct-2013 |
Ian Rogers <irogers@google.com> |
Inflate contended lock word by suspending owner.
Bug 6961405.
Don't inflate monitors for Notify and NotifyAll.
Tidy lock word, handle recursive lock case alongside unlocked case and move
assembly out of line (except for ARM quick). Also handle null in out-of-line
assembly as the test is quick and the enter/exit code is already a safepoint.
To gain ownership of a monitor on behalf of another thread, monitor contenders
must not hold the monitor_lock_, so they wait on a condition variable.
Reduce size of per mutex contention log.
Be consistent in calling thin lock thread ids just thread ids.
Fix potential thread death races caused by the use of FindThreadByThreadId,
make it invariant that returned threads are either self or suspended now.
Code size reduction on ARM boot.oat 0.2%.
Old nexus 7 speedup 0.25%, new nexus 7 speedup 1.4%, nexus 10 speedup 2.24%,
nexus 4 speedup 2.09% on DeltaBlue.
Change-Id: Id52558b914f160d9c8578fdd7fc8199a9598576a
|
| 967a0adf8b93a23d2a8fef82e06bd913db94ac19 |
|
11-Sep-2013 |
Hiroshi Yamauchi <yamauchi@google.com> |
More allocation code optimizations.
- Inline Class::AllocObject() and Array::Alloc().
- Inline some short Mutex functions and add LIKELY/UNLIKELY to some
Mutex functions.
- This change improves the Ritz MemAllocTest by ~6% on Nexus 4 and
~10% on host.
Bug: 9986565
Change-Id: I1606c74ddb21676cbc1de1a40e9b076fc23eaea4
|
| b3733086ab415088b97fac20b3eea24433a7d2c5 |
|
13-Aug-2013 |
Hiroshi Yamauchi <yamauchi@google.com> |
Add a systrace support for lock contention logging.
- Now several ART executables like oatdump need to link with libcutils
as the mutex code is shared among them.
- The blocking thread ID and lock owner thread ID are passed to
ScopedContentionRecorder in the correct order.
Bug: 9986464
Change-Id: Id766de23fbc4af1d8ba2de051595e365b04f5ae7
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| 1afde13b36cc1d67528104c2b1395495f669cd3f |
|
07-Aug-2013 |
Hiroshi Yamauchi <yamauchi@google.com> |
Polish the lock contention logging.
- Make the code compilable.
- Surround the code with kLogLockContentions instead of #ifdef CONTENTION_LOGGING.
- Dump contended locks before never-contended locks for better log readability.
- Change the wait time unit from ms to us for better precision.
Bug: 9986464
Change-Id: I121c6ccf4424d3e0339b0dcd25e18976b41fe4f3
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| 7934ac288acfb2552bb0b06ec1f61e5820d924a4 |
|
26-Jul-2013 |
Brian Carlstrom <bdc@google.com> |
Fix cpplint whitespace/comments issues
Change-Id: Iae286862c85fb8fd8901eae1204cd6d271d69496
|
| 0de7985b29257bb60be511db774a4f0119a81f20 |
|
26-Jul-2013 |
Brian Carlstrom <bdc@google.com> |
Consistently handle EINTR on FUTEX_WAIT
Change-Id: I848f33b51f7087232275a125d7ae414909233437
|
| 6eb5288264d68276085855bd041fa74fbca6827c |
|
19-Jul-2013 |
Brian Carlstrom <bdc@google.com> |
Conditionally define non-Android pthread structures
Change-Id: I2258b521db20dcc6940cb5540ca24ea5bbaf006f
|
| fb6996fe2b1bb28526751650441d7ac29dcdb4e6 |
|
19-Jul-2013 |
Brian Carlstrom <bdc@google.com> |
Fixing cpplint runtime/arrays, runtime/int, runtime/virtual issues
Change-Id: Ia2ff94d2fb69465df26aaf83df82614a483b26e0
|
| 02c8cc6d1312a2b55533f02f6369dc7c94672f90 |
|
19-Jul-2013 |
Brian Carlstrom <bdc@google.com> |
Fixing cpplint whitespace/blank_line, whitespace/end_of_line, whitespace/labels, whitespace/semicolon issues
Change-Id: Ide4f8ea608338b3fed528de7582cfeb2011997b6
|
| df62950e7a32031b82360c407d46a37b94188fbb |
|
18-Jul-2013 |
Brian Carlstrom <bdc@google.com> |
Fix cpplint whitespace/parens issues
Change-Id: Ifc678d59a8bed24ffddde5a0e543620b17b0aba9
|
| 93ba893c20532990a430741e0a97212900094e8c |
|
18-Jul-2013 |
Brian Carlstrom <bdc@google.com> |
Fix cpplint runtime/explicit issues
Change-Id: I352ba0b427f1ff9b22887693952b180eae0839ba
|
| 2ce745c06271d5223d57dbf08117b20d5b60694a |
|
18-Jul-2013 |
Brian Carlstrom <bdc@google.com> |
Fix cpplint whitespace/braces issues
Change-Id: Ide80939faf8e8690d8842dde8133902ac725ed1a
|
| 7940e44f4517de5e2634a7e07d58d0fb26160513 |
|
12-Jul-2013 |
Brian Carlstrom <bdc@google.com> |
Create separate Android.mk for main build targets
The runtime, compiler, dex2oat, and oatdump now are in seperate trees
to prevent dependency creep. They can now be individually built
without rebuilding the rest of the art projects. dalvikvm and jdwpspy
were already this way. Builds in the art directory should behave as
before, building everything including tests.
Change-Id: Ic6b1151e5ed0f823c3dd301afd2b13eb2d8feb81
|