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13 years agoam cab0fdf8: (-s ours) DO NOT MERGE Further refinement of card table clear
Andy McFadden [Thu, 10 Nov 2011 19:39:09 +0000 (19:39 +0000)]
am cab0fdf8: (-s ours) DO NOT MERGE Further refinement of card table clear

* commit 'cab0fdf82a668e2a1a054cd6506835046218e419':
  DO NOT MERGE Further refinement of card table clear

13 years agoDO NOT MERGE Further refinement of card table clear
Andy McFadden [Tue, 8 Nov 2011 00:57:54 +0000 (16:57 -0800)]
DO NOT MERGE Further refinement of card table clear

We're currently using memset() to clear cards out to the growth
limit, which on a device configured for 48MB/128MB process caps
means we're sitting on 384KB or 1MB of pages.  We can reduce that
substantially.

This change attempts to reduce the memset() length to the currently
active portion of the card table, based on the placement of objects
in the "live objects" bitmap.  This should avoid faulting in card
pages that we don't actually need.

This is suboptimal when parts of the card table are used briefly
and then ignored for a while.  An alternative implementation, which
uses madvise(DONTNEED) aggressively, is also included (#ifdefed out).

Bug 5567332

(cherry-pick from master)

Change-Id: I6b181de20a0c8b6307acaebbc5d6dac20422f25d

13 years agoFurther refinement of card table clear
Andy McFadden [Tue, 8 Nov 2011 00:57:54 +0000 (16:57 -0800)]
Further refinement of card table clear

We're currently using memset() to clear cards out to the growth
limit, which on a device configured for 48MB/128MB process caps
means we're sitting on 384KB or 1MB of pages.  We can reduce that
substantially.

This change attempts to reduce the memset() length to the currently
active portion of the card table, based on the placement of objects
in the "live objects" bitmap.  This should avoid faulting in card
pages that we don't actually need.

This is suboptimal when parts of the card table are used briefly
and then ignored for a while.  An alternative implementation, which
uses madvise(DONTNEED) aggressively, is also included (#ifdefed out).

Bug 5567332

Change-Id: I7663ae7d15d0aaa8158deed5e331bf05333da6bb

13 years agoMerge "Fix reporting of initial pause time"
Andy McFadden [Tue, 8 Nov 2011 17:33:53 +0000 (09:33 -0800)]
Merge "Fix reporting of initial pause time"

13 years agoFix reporting of initial pause time
Andy McFadden [Tue, 8 Nov 2011 00:20:51 +0000 (16:20 -0800)]
Fix reporting of initial pause time

The "rootEnd" time was being captured before dvmClearCardTable()
was called.

Bug 5567332

Change-Id: I5499f1648c3e41296c18fa5d95d834c2d2853e8f

13 years agoReconcile with ics-mr1-release
The Android Open Source Project [Mon, 7 Nov 2011 16:30:42 +0000 (08:30 -0800)]
Reconcile with ics-mr1-release

Change-Id: I91ffc584e0d2d39aaec9b28ac3cde8b625234968

13 years agomerge in ics-mr1-release history after reset to ics-mr1
The Android Automerger [Sun, 6 Nov 2011 14:45:27 +0000 (06:45 -0800)]
merge in ics-mr1-release history after reset to ics-mr1

13 years agoam 6cd72bd0: Merge "Don\'t pay for filename/line number lookup unless you need to...
Elliott Hughes [Sat, 5 Nov 2011 19:33:54 +0000 (19:33 +0000)]
am 6cd72bd0: Merge "Don\'t pay for filename/line number lookup unless you need to." into ics-mr1

* commit '6cd72bd0161459e21d496b927967bd0ca6fe0f94':
  Don't pay for filename/line number lookup unless you need to.

13 years agoam 50e01501: Merge "Knock ::self() out of the ParseXml profile." into ics-mr1
Elliott Hughes [Sat, 5 Nov 2011 19:33:53 +0000 (19:33 +0000)]
am 50e01501: Merge "Knock ::self() out of the ParseXml profile." into ics-mr1

* commit '50e015017f091118f0147d02d23140ff9f88daec':
  Knock ::self() out of the ParseXml profile.

13 years agoam 4c83f214: Merge "Reduce Dalvik card table overhead" into ics-mr1
Andy McFadden [Sat, 5 Nov 2011 19:33:51 +0000 (19:33 +0000)]
am 4c83f214: Merge "Reduce Dalvik card table overhead" into ics-mr1

* commit '4c83f214932af008cf79aee528ca3f9e66572040':
  Reduce Dalvik card table overhead

13 years agoam ccf4c9d9: Don\'t decr profiling count without incr
Andy McFadden [Sat, 5 Nov 2011 19:33:50 +0000 (19:33 +0000)]
am ccf4c9d9: Don\'t decr profiling count without incr

* commit 'ccf4c9d99fcffbc9bf65066004896745b9dcc340':
  Don't decr profiling count without incr

13 years agoMerge "Slight change to unwinder API."
Jeff Brown [Sat, 5 Nov 2011 03:06:58 +0000 (20:06 -0700)]
Merge "Slight change to unwinder API."

13 years agoMerge "Don't pay for filename/line number lookup unless you need to." into ics-mr1
Elliott Hughes [Sat, 5 Nov 2011 00:22:17 +0000 (17:22 -0700)]
Merge "Don't pay for filename/line number lookup unless you need to." into ics-mr1

13 years agoMerge "Knock ::self() out of the ParseXml profile." into ics-mr1
Elliott Hughes [Sat, 5 Nov 2011 00:22:01 +0000 (17:22 -0700)]
Merge "Knock ::self() out of the ParseXml profile." into ics-mr1

13 years agoMerge "Reduce Dalvik card table overhead" into ics-mr1
Andy McFadden [Fri, 4 Nov 2011 23:46:14 +0000 (16:46 -0700)]
Merge "Reduce Dalvik card table overhead" into ics-mr1

13 years agoDon't decr profiling count without incr
Andy McFadden [Fri, 4 Nov 2011 22:58:37 +0000 (15:58 -0700)]
Don't decr profiling count without incr

The failure cleanup code in dvmMethodTraceStart() was assuming
that profiling had already been started, which was true until my
previous change.  The code in the interpreter isn't too picky, but
updateActiveProfilers() is trying to keep an accurate acount, and
gets upset.  If you pass in a bad filename, we disable something that
was never enabled, and the VM gets confused and aborts out of spite.

Related to bug 5564440

Change-Id: I17fd8bf4654c29f49efb10142d222a91c190b6ed

13 years agoReduce Dalvik card table overhead
Andy McFadden [Fri, 4 Nov 2011 19:56:55 +0000 (12:56 -0700)]
Reduce Dalvik card table overhead

The VM has a "growth limit" (e.g. 48MB) that is used to cap normal
apps, and a "max heap" (e.g. 128MB) that is used for apps with unusual
high-memory requirements.  The Dalvik GC uses a 128:1 "card table"
that spans the entire managed heap, out to the "max heap" limit.

The table is erased during every concurrent GC.  The first time
we do that post-zygote, the copy-on-write behavior causes physical
pages to be allocated.  We're currently clearing out to the heap max,
not the growth limit, which means we have a bunch of physical memory
allocated for pages that will never be used.

This changes it so we only clear out to the growth limit.  If the
growth limit is removed by the app, we clear out to the heap max.
On devices with a 128MB max heap, this reduces the private/dirty
usage for most apps by 640KB.

Bug 5567332

Change-Id: Iac633017c128d63b284d48016e47d40cc46df1de

13 years agoReconcile with ics-mr1-release
The Android Open Source Project [Fri, 4 Nov 2011 15:31:11 +0000 (08:31 -0700)]
Reconcile with ics-mr1-release

Change-Id: Ibae283408ede0f3ff5a297e8d205e976455f3b95

13 years agoDon't pay for filename/line number lookup unless you need to.
Elliott Hughes [Fri, 4 Nov 2011 01:17:19 +0000 (18:17 -0700)]
Don't pay for filename/line number lookup unless you need to.

This wasn't a regression; the code's always been like this. But this shows up
in profiles of anything doing a lot of synchronized stuff, even when there's
no contention.

There are two awkward cases. One is that the old code used to offer a variety
of special-case messages for failures to find the current frame, save area,
and Method*. I assume this was just to help in debugging and shouldn't happen
in practice, so I don't think we've lost anything there. The other case was
that on unlocking, we used to explicitly say "unlocked". But I'm not sure we
could get into a situation where we'd be reporting contention on a monitor
that wasn't locked when we tried to lock it. So I think that's okay too.

Change-Id: Ib4401c771f717e9c8cc9c4e5346ec7a5f46a1636

13 years agoSlight change to unwinder API.
Jeff Brown [Fri, 4 Nov 2011 00:30:07 +0000 (17:30 -0700)]
Slight change to unwinder API.

Change-Id: If73f01fff9fb56ce9cba70a386d865957eaebe78

13 years agoKnock ::self() out of the ParseXml profile.
Elliott Hughes [Thu, 3 Nov 2011 21:07:24 +0000 (14:07 -0700)]
Knock ::self() out of the ParseXml profile.

New profile (>=0.6, which is where the original seems to have cut off):

47       11.0070  dvmCallJNIMethod(unsigned int const*, JValue*, Method const*, Thread*)
30        7.0258  dvmChangeStatus(Thread*, ThreadStatus)
29        6.7916  addLocalReference(Thread*, Object*)
26        6.0890  dexDecodeDebugInfo(DexFile const*, DexCode const*, char const*, unsigned int, unsigned int, int (*)(void*, unsigned int, unsigned int), void (*)(void*, unsigned short, unsigned int, unsigned int, char const*, char const*, char const*), void*)
22        5.1522  dalvik_inst
15        3.5129  lockMonitor(Thread*, Monitor*)
14        3.2787  dvmLineNumFromPC
13        3.0445  javaLangString_equals(unsigned int, unsigned int, unsigned int, unsigned int, JValue*)
13        3.0445  scanObject(Object const*, GcMarkContext*)
12        2.8103  ScopedJniThreadState::ScopedJniThreadState(_JNIEnv*)
12        2.8103  common_invokeMethodNoRange
12        2.8103  dvmDecodeIndirectRef(Thread*, _jobject*)
9         2.1077  IndirectRefTable::add(unsigned int, Object*)
9         2.1077  ReleasePrimitiveArrayCritical(_JNIEnv*, _jarray*, void*, int)
9         2.1077  markObjectNonNull(Object const*, GcMarkContext*, bool)
9         2.1077  unpinPrimitiveArray(ArrayObject*)
8         1.8735  getCodeAddrCommon(unsigned short const*, bool)
7         1.6393  dexStringByTypeIdx(DexFile const*, unsigned int)
7         1.6393  dvmHeapSourceAlloc(unsigned int)
6         1.4052  GetPrimitiveArrayCritical(_JNIEnv*, _jarray*, unsigned char*)
6         1.4052  dvmPlatformInvoke
6         1.4052  pinPrimitiveArray(ArrayObject*)
6         1.4052  readUnsignedLeb128(unsigned char const**)
6         1.4052  scanFields(Object const*, GcMarkContext*)
5         1.1710  IndirectRefTable::get(void*) const
5         1.1710  dvmFindInReferenceTable(ReferenceTable const*, Object**, Object*)
4         0.9368  common_returnFromMethod
4         0.9368  dvmAddToReferenceTable(ReferenceTable*, Object*)
4         0.9368  dvmHeapBitmapScanWalk(HeapBitmap*, void (*)(Object*, void*, void*), void*)
4         0.9368  dvmInterpret(Thread*, Method const*, JValue*)
4         0.9368  dvmLockObject
4         0.9368  dvmMalloc(unsigned int, int)
4         0.9368  findPackedSwitchIndex(unsigned short const*, int, int)
4         0.9368  readStringIdx(DexFile const*, unsigned char const**)
4         0.9368  unlockMonitor(Thread*, Monitor*)
3         0.7026  dvmSetFinalizable

Change-Id: Ic5c36859f6810413bd0b48aad1d99da7daa6e8ba

13 years agoam ab97cd16: Start profiling after state prep
Andy McFadden [Thu, 3 Nov 2011 22:59:13 +0000 (22:59 +0000)]
am ab97cd16: Start profiling after state prep

* commit 'ab97cd1634ed4e2c9e5c558a9f88ed9ca8623c8c':
  Start profiling after state prep

13 years agoStart profiling after state prep
Andy McFadden [Thu, 3 Nov 2011 21:13:24 +0000 (14:13 -0700)]
Start profiling after state prep

The updateActiveProfilers() call was happening before the profiler
state setup was completed, creating a race that could lead to a
native crash.

Bug 5564440

Change-Id: I8c030fc87f106aa8b2a67876d604a5bd79e05175

13 years agoMerge "hprof-conv: Better error message when run on a 1.0.2 file."
Siva Velusamy [Thu, 3 Nov 2011 20:54:35 +0000 (13:54 -0700)]
Merge "hprof-conv: Better error message when run on a 1.0.2 file."

13 years agohprof-conv: Better error message when run on a 1.0.2 file.
Siva Velusamy [Thu, 3 Nov 2011 20:34:29 +0000 (13:34 -0700)]
hprof-conv: Better error message when run on a 1.0.2 file.

Change-Id: I36b14aadc11f6ba8a66543546043280da64e7605

13 years agoMerge "Disable dumping native stacks of non-Dalvik threads. Bug: 5544153"
Jeff Brown [Thu, 3 Nov 2011 18:05:50 +0000 (11:05 -0700)]
Merge "Disable dumping native stacks of non-Dalvik threads. Bug: 5544153"

13 years agoam c4102d66: (-s ours) Merge "DO NOT MERGE: Optimize IndirectRefTable." into ics-mr1
Elliott Hughes [Thu, 3 Nov 2011 18:02:24 +0000 (18:02 +0000)]
am c4102d66: (-s ours) Merge "DO NOT MERGE: Optimize IndirectRefTable." into ics-mr1

* commit 'c4102d6647043591bd89bba75454cc04d23753bd':
  DO NOT MERGE: Optimize IndirectRefTable.

13 years agoMerge "DO NOT MERGE: Optimize IndirectRefTable." into ics-mr1
Elliott Hughes [Thu, 3 Nov 2011 17:59:19 +0000 (10:59 -0700)]
Merge "DO NOT MERGE: Optimize IndirectRefTable." into ics-mr1

13 years agoam 63cd4b08: Don\'t malloc between fork and exec
Andy McFadden [Thu, 3 Nov 2011 14:44:40 +0000 (14:44 +0000)]
am 63cd4b08: Don\'t malloc between fork and exec

* commit '63cd4b08e623242066c63563bad3a9f414a2bd2d':
  Don't malloc between fork and exec

13 years agoDisable dumping native stacks of non-Dalvik threads.
Jeff Brown [Thu, 3 Nov 2011 10:51:01 +0000 (03:51 -0700)]
Disable dumping native stacks of non-Dalvik threads.
Bug: 5544153

We are seeing cases where dumping certain non-Dalvik threads
causes system instability.  Temporarily disable this feature.

Change-Id: I14d7907a90f152bcb15d066f8bd3fdedc578e722

13 years agoDon't malloc between fork and exec
Andy McFadden [Wed, 2 Nov 2011 22:26:39 +0000 (15:26 -0700)]
Don't malloc between fork and exec

This was causing hangs in DEX file loading.

Bug 5329833

Change-Id: I19e9e0624f3823cc771c71a4b4ac177d57343c58

13 years agoam 5269ef7b: am 3931f798: Fix cleanup (cherry-picked from ics-mr1)
Andy McFadden [Wed, 2 Nov 2011 17:31:49 +0000 (17:31 +0000)]
am 5269ef7b: am 3931f798: Fix cleanup (cherry-picked from ics-mr1)

* commit '5269ef7b87c6aa89d86e73f438363661f2f65a04':
  Fix cleanup (cherry-picked from ics-mr1)

13 years agoam f51d43f0: am e3d9cde4: Disable JIT single-stepping resume mode.
Ben Cheng [Wed, 2 Nov 2011 17:31:44 +0000 (17:31 +0000)]
am f51d43f0: am e3d9cde4: Disable JIT single-stepping resume mode.

* commit 'f51d43f0ebfa5739d1ee691d661097dbbad98041':
  Disable JIT single-stepping resume mode.

13 years agoam a78b1255: Fix cleanup
Andy McFadden [Wed, 2 Nov 2011 17:30:36 +0000 (17:30 +0000)]
am a78b1255: Fix cleanup

* commit 'a78b1255ad1ce8dcacad21338d4f88db4231c4cd':
  Fix cleanup

13 years agomerge in ics-mr1-release history after reset to ics-mr1
The Android Automerger [Wed, 2 Nov 2011 13:45:25 +0000 (06:45 -0700)]
merge in ics-mr1-release history after reset to ics-mr1

13 years agoam 3931f798: Fix cleanup (cherry-picked from ics-mr1)
Andy McFadden [Tue, 1 Nov 2011 23:34:39 +0000 (23:34 +0000)]
am 3931f798: Fix cleanup (cherry-picked from ics-mr1)

* commit '3931f79801b67577bf8ac12d0b3fb5b4aeaaf766':
  Fix cleanup (cherry-picked from ics-mr1)

13 years agoFix cleanup
Andy McFadden [Tue, 1 Nov 2011 18:04:46 +0000 (11:04 -0700)]
Fix cleanup
(cherry-picked from ics-mr1)

The code was attempting to null out a struct member after freeing
the struct.

Also, changed the order of directory permission tests so that
writable comes first.  Somehow "dalvik-cache directory not
writable" seems more direct than "not readable", since the code
isn't generally interested in reading the directory.

Bug 5549907

Change-Id: If737ab822b356aae98e47292d21946e33a04342b

13 years agoam e3d9cde4: Disable JIT single-stepping resume mode.
Ben Cheng [Tue, 1 Nov 2011 22:05:11 +0000 (22:05 +0000)]
am e3d9cde4: Disable JIT single-stepping resume mode.

* commit 'e3d9cde40f96bf40dd4ad3d495949869bde5dd1e':
  Disable JIT single-stepping resume mode.

13 years agoDisable JIT single-stepping resume mode.
Ben Cheng [Tue, 1 Nov 2011 20:53:39 +0000 (13:53 -0700)]
Disable JIT single-stepping resume mode.

BUG: 5551114
Change-Id: Id8ee75be5e71ee258994235952871ad181024e56

13 years agoFix cleanup
Andy McFadden [Tue, 1 Nov 2011 18:04:46 +0000 (11:04 -0700)]
Fix cleanup

The code was attempting to null out a struct member after freeing
the struct.

Also, changed the order of directory permission tests so that
writable comes first.  Somehow "dalvik-cache directory not
writable" seems more direct than "not readable", since the code
isn't generally interested in reading the directory.

Bug 5549907

Change-Id: Ie412ff6c0870357b92e53606f70cb9407e04e7cf

13 years agoDO NOT MERGE: Optimize IndirectRefTable.
Jeff Brown [Thu, 27 Oct 2011 00:04:54 +0000 (17:04 -0700)]
DO NOT MERGE: Optimize IndirectRefTable.

Removed unused debugging code that maintained pointers to the
4 previous objects in each slot.

Promoted the serial number property of a slot to be first class.
This is a sufficiently cheap and useful check to perform that we
might as well always do it.

Changed get() and remove() so they check the validity of the
references at the same time as they retrieve them.  They're
also a bit smarter about checking the reference kind given
that they can assume that the table will only contain references
of one kind.  The checks are now much more consistent.
For example, remove() used to check whether an index was
stale only in the case where it was not removing the top entry
(now it always checks).

Made add() return NULL instead of dvmAbort()'ing in the case
where the table overflowed and ensure we don't blow away the
table in that cases.  This change resolves an issue with
TestIndirectRefTable.cpp which deliberately overflows the table
and expects add() to return NULL (as documented!).  As it
happens, the add() method is called in exactly 3 places in
Jni.cpp.  In each of those cases, the code was written to
handle a NULL result and only in the case of adding a weak
global reference did it not abort.  Fixed the weak global
reference case to be consistent with the others.

Changed the signature of contains() to take an Object* since
that's what we're actually looking for inside the table.

Added a couple of calls to dump() in TestIndirectRefTable.cpp
for visual inspection of its correctness.

Performance as measured by TestIndirectRefTable on same hardware.

Old implementation:
- Add/remove 100 objects FIFO order, 100000 iterations, 0.023ms / iteration
- Add/remove 100 objects LIFO order, 100000 iterations, 0.020ms / iteration
- Get 100 objects, 100000 iterations, 0.009ms / iteration

New implementation:
- Add/remove 100 objects FIFO order, 100000 iterations, 0.010ms / iteration
- Add/remove 100 objects LIFO order, 100000 iterations, 0.009ms / iteration
- Get 100 objects, 100000 iterations, 0.002ms / iteration

Cherry-pick from master.

Conflicts:

vm/IndirectRefTable.cpp

Change-Id: I157f3c1ba598137222878b8e6a5890efb744fe76

13 years agoReconcile with ics-mr1-release
The Android Open Source Project [Mon, 31 Oct 2011 20:19:07 +0000 (13:19 -0700)]
Reconcile with ics-mr1-release

Change-Id: Iaa5f9ff52792e1eff28cf9591a5efca18ac165e3

13 years agoFix single-stepping resume mode in the interpreter.
Ben Cheng [Thu, 27 Oct 2011 21:04:12 +0000 (14:04 -0700)]
Fix single-stepping resume mode in the interpreter.

(cherry-picked from master)

When a resume attempt is cancelled due to other pending request make sure
the old native resume PC is cleared. Otherwise the JIT code cache may be
re-entered with mismatching Dalvik PC.

Also fix a code bloat problem where single-step count is not set properly
after executing a return instruction.

BUG: 5208786

Change-Id: I39db1633dcda1f464311c878ded4b5695a9b7ffd

13 years agoam f4948cc1: am b1e2271b: Fix single-stepping resume mode in the interpreter.
Ben Cheng [Fri, 28 Oct 2011 22:27:49 +0000 (22:27 +0000)]
am f4948cc1: am b1e2271b: Fix single-stepping resume mode in the interpreter.

* commit 'f4948cc1ddb41ed72e5843ffe3d4af4889e6c74c':
  Fix single-stepping resume mode in the interpreter.

13 years agoam 8faec7e7: Fix single-stepping resume mode in the interpreter.
Ben Cheng [Fri, 28 Oct 2011 22:27:48 +0000 (22:27 +0000)]
am 8faec7e7: Fix single-stepping resume mode in the interpreter.

* commit '8faec7e782eca1fd6a2ad071c30b939c77c82662':
  Fix single-stepping resume mode in the interpreter.

13 years agoam b1e2271b: Fix single-stepping resume mode in the interpreter.
Ben Cheng [Fri, 28 Oct 2011 20:12:05 +0000 (20:12 +0000)]
am b1e2271b: Fix single-stepping resume mode in the interpreter.

* commit 'b1e2271b51cfb1f264b8966f1151652767259751':
  Fix single-stepping resume mode in the interpreter.

13 years agoFix single-stepping resume mode in the interpreter.
Ben Cheng [Thu, 27 Oct 2011 21:04:12 +0000 (14:04 -0700)]
Fix single-stepping resume mode in the interpreter.

(cherry-picked from master)

When a resume attempt is cancelled due to other pending request make sure
the old native resume PC is cleared. Otherwise the JIT code cache may be
re-entered with mismatching Dalvik PC.

Also fix a code bloat problem where single-step count is not set properly
after executing a return instruction.

BUG: 5208786

Change-Id: I39db1633dcda1f464311c878ded4b5695a9b7ffd

13 years agoFix single-stepping resume mode in the interpreter.
Ben Cheng [Thu, 27 Oct 2011 21:04:12 +0000 (14:04 -0700)]
Fix single-stepping resume mode in the interpreter.

(cherry-picked from master)

When a resume attempt is cancelled due to other pending request make sure
the old native resume PC is cleared. Otherwise the JIT code cache may be
re-entered with mismatching Dalvik PC.

Also fix a code bloat problem where single-step count is not set properly
after executing a return instruction.

BUG: 5208786

Change-Id: I54775215b11eae29ccdb6111dc0fdfa99e41e08d

13 years agoMerge "Fix single-stepping resume mode in the interpreter."
Ben Cheng [Fri, 28 Oct 2011 01:42:33 +0000 (18:42 -0700)]
Merge "Fix single-stepping resume mode in the interpreter."

13 years agoDump stacks for all native threads, not just those in JNI.
Jeff Brown [Thu, 27 Oct 2011 20:05:45 +0000 (13:05 -0700)]
Dump stacks for all native threads, not just those in JNI.

Change-Id: I276f5f448f22f8a926cdfc8c93935da687db5d9b

13 years agoFix single-stepping resume mode in the interpreter.
Ben Cheng [Thu, 27 Oct 2011 21:04:12 +0000 (14:04 -0700)]
Fix single-stepping resume mode in the interpreter.

When a resume attempt is cancelled due to other pending request make sure
the old native resume PC is cleared. Otherwise the JIT code cache may be
re-entered with mismatching Dalvik PC.

Also fix a code bloat problem where single-step count is not set properly
after executing a return instruction.

Change-Id: Ia926bc3a87cae1296719a1069838060b181ce54d

13 years agoOptimize IndirectRefTable.
Jeff Brown [Thu, 27 Oct 2011 00:04:54 +0000 (17:04 -0700)]
Optimize IndirectRefTable.

Removed unused debugging code that maintained pointers to the
4 previous objects in each slot.

Promoted the serial number property of a slot to be first class.
This is a sufficiently cheap and useful check to perform that we
might as well always do it.

Changed get() and remove() so they check the validity of the
references at the same time as they retrieve them.  They're
also a bit smarter about checking the reference kind given
that they can assume that the table will only contain references
of one kind.  The checks are now much more consistent.
For example, remove() used to check whether an index was
stale only in the case where it was not removing the top entry
(now it always checks).

Made add() return NULL instead of dvmAbort()'ing in the case
where the table overflowed and ensure we don't blow away the
table in that cases.  This change resolves an issue with
TestIndirectRefTable.cpp which deliberately overflows the table
and expects add() to return NULL (as documented!).  As it
happens, the add() method is called in exactly 3 places in
Jni.cpp.  In each of those cases, the code was written to
handle a NULL result and only in the case of adding a weak
global reference did it not abort.  Fixed the weak global
reference case to be consistent with the others.

Changed the signature of contains() to take an Object* since
that's what we're actually looking for inside the table.

Added a couple of calls to dump() in TestIndirectRefTable.cpp
for visual inspection of its correctness.

Performance as measured by TestIndirectRefTable on same hardware.

Old implementation:
- Add/remove 100 objects FIFO order, 100000 iterations, 0.023ms / iteration
- Add/remove 100 objects LIFO order, 100000 iterations, 0.020ms / iteration
- Get 100 objects, 100000 iterations, 0.009ms / iteration

New implementation:
- Add/remove 100 objects FIFO order, 100000 iterations, 0.010ms / iteration
- Add/remove 100 objects LIFO order, 100000 iterations, 0.009ms / iteration
- Get 100 objects, 100000 iterations, 0.002ms / iteration

Change-Id: I1c904eb03bc8dd9822e6d9cce702c696e976974e

13 years agoAdd a simple performance test for IndirectRefTable.
Jeff Brown [Thu, 27 Oct 2011 01:41:12 +0000 (18:41 -0700)]
Add a simple performance test for IndirectRefTable.

Change-Id: Ib75354508fff1921d8d73eba5e3a3905a362b1e1

13 years agoFix reference to non-existent function in debug code.
Jeff Brown [Wed, 26 Oct 2011 23:25:27 +0000 (16:25 -0700)]
Fix reference to non-existent function in debug code.

The generated interpreter code has some debugging code
that call dvmIsHeapAddressObject, which doesn't exist.
This causes the build to fails when we build Dalvik with
DEBUG_DALVIK_VM=true.  Use dvmIsHeapAddress instead.

Change-Id: Ifc5eeb4bd2ea6b45046c606b744b1a70a5e56dfc

13 years agoRename (IF_)LOGV(_IF) to (IF_)ALOGV(_IF) DO NOT MERGE
Steve Block [Thu, 20 Oct 2011 10:55:54 +0000 (11:55 +0100)]
Rename (IF_)LOGV(_IF) to (IF_)ALOGV(_IF)  DO NOT MERGE

See https://android-git.corp.google.com/g/#/c/143865

Bug: 5449033
Change-Id: I8bd96961e369a08e86ff78b82d90f20f42787eb1

13 years agoRename (IF_)LOG() to (IF_)ALOG() DO NOT MERGE
Steve Block [Wed, 12 Oct 2011 16:24:48 +0000 (17:24 +0100)]
Rename (IF_)LOG() to (IF_)ALOG()  DO NOT MERGE

See https://android-git.corp.google.com/g/#/c/141576

Bug: 5449033
Change-Id: Ie3bc0d5436218ea05f98cb0373ecf5924f78db05

13 years agoDump native stack of JNI methods when handling SIGQUIT.
Jeff Brown [Thu, 20 Oct 2011 03:32:03 +0000 (20:32 -0700)]
Dump native stack of JNI methods when handling SIGQUIT.

Change-Id: I7da7259f1350e853153ba4dea96797fc86284068

13 years agomerge in ics-release history after reset to master
The Android Automerger [Thu, 20 Oct 2011 13:59:36 +0000 (06:59 -0700)]
merge in ics-release history after reset to master

13 years agoMerge "Provide debugging info should extended opcode lookup fail."
Jesse Wilson [Wed, 19 Oct 2011 20:26:19 +0000 (13:26 -0700)]
Merge "Provide debugging info should extended opcode lookup fail."

13 years agoProvide debugging info should extended opcode lookup fail.
Jesse Wilson [Wed, 19 Oct 2011 15:02:51 +0000 (11:02 -0400)]
Provide debugging info should extended opcode lookup fail.

Bug: http://code.google.com/p/android/issues/detail?id=20814
Change-Id: Iedaf07721c29dd3d24827c3f7a953b7371c9735d

13 years agomerge in ics-release history after reset to master
The Android Automerger [Tue, 18 Oct 2011 13:59:26 +0000 (06:59 -0700)]
merge in ics-release history after reset to master

13 years agoAvoid deadlock.
Elliott Hughes [Fri, 14 Oct 2011 21:36:46 +0000 (14:36 -0700)]
Avoid deadlock.

dvmIsHeapAddress is the pointer validity checker for use outside the GC. If
it doesn't take the heap lock, it risks looking at data structures that are
changing under its feet. If it does take the heap lock, it risks deadlock
between a thread doing an explicit GC and the signal catcher trying to dump
threads (causing the GC thread to be suspended while holding the heap lock).

Calling back into managed code while holding the heap lock and with other
threads resumed sounds like an inherently bad idea to me, but that's a battle
for another day.

With this change, we can handle SIGQUIT while we're in ReferenceQueue.add
as a result of an explicit GC in a system doing concurrent collections, so
the only known problem is fixed.

Bug: 5425802
Change-Id: I42d434d5ea3ffbcb77a4c544b81b08a4c7364a16

13 years agomerge in ics-release history after reset to master
The Android Automerger [Tue, 11 Oct 2011 12:32:21 +0000 (05:32 -0700)]
merge in ics-release history after reset to master

13 years agoMerge "Leave up to 512 chars of gDvm.lastMessage on dvmAbort's stack frame."
Ben Cheng [Mon, 10 Oct 2011 23:55:23 +0000 (16:55 -0700)]
Merge "Leave up to 512 chars of gDvm.lastMessage on dvmAbort's stack frame."

13 years agoLeave up to 512 chars of gDvm.lastMessage on dvmAbort's stack frame.
Ben Cheng [Mon, 10 Oct 2011 23:26:36 +0000 (16:26 -0700)]
Leave up to 512 chars of gDvm.lastMessage on dvmAbort's stack frame.

Bug: 5372634
Change-Id: I019a059e5a989de3dfc9e2f5e78f7caa7168cf75

13 years agoMerge "Reordered some checks and added more to the verifier."
jeffhao [Mon, 10 Oct 2011 21:51:45 +0000 (14:51 -0700)]
Merge "Reordered some checks and added more to the verifier."

13 years agoMerge "Revert "Use the card table to scan the immune region of the heap.""
Ben Cheng [Mon, 10 Oct 2011 21:08:17 +0000 (14:08 -0700)]
Merge "Revert "Use the card table to scan the immune region of the heap.""

13 years agoRevert "Use the card table to scan the immune region of the heap."
Ben Cheng [Mon, 10 Oct 2011 20:17:58 +0000 (13:17 -0700)]
Revert "Use the card table to scan the immune region of the heap."

This reverts commit 6c355e53332502314c3d82a7afcf898d66118f27.

Conflicts are resolved in:

vm/alloc/CardTable.cpp
vm/alloc/HeapBitmap.cpp
vm/alloc/HeapInternal.h
vm/alloc/HeapSource.cpp
vm/alloc/MarkSweep.cpp

Tested with overnight monkey runs + Delaunay.

Bug: 5037417
Change-Id: I400eff8542d0bddd865ce570a479f7750c1ba484

13 years agoMerge "Don't say UTF-8 in Dalvik's CheckJNI when we mean Modified UTF-8."
Elliott Hughes [Mon, 10 Oct 2011 18:17:13 +0000 (11:17 -0700)]
Merge "Don't say UTF-8 in Dalvik's CheckJNI when we mean Modified UTF-8."

13 years agoDon't say UTF-8 in Dalvik's CheckJNI when we mean Modified UTF-8.
Elliott Hughes [Fri, 7 Oct 2011 22:42:23 +0000 (15:42 -0700)]
Don't say UTF-8 in Dalvik's CheckJNI when we mean Modified UTF-8.

Change-Id: I4130e7f92275275a6d6f782e1ad979fbf9197a8e

13 years agoRevert "GC experiment."
The Android Automerger [Fri, 7 Oct 2011 00:32:54 +0000 (17:32 -0700)]
Revert "GC experiment."

This reverts commit b3fb1d08137ead7b6be016e1bc147cb781e76111.

13 years agoReordered some checks and added more to the verifier.
jeffhao [Thu, 6 Oct 2011 17:33:22 +0000 (10:33 -0700)]
Reordered some checks and added more to the verifier.

The verifier checks for 2 errors in put instructions. First, if the
field can't be resolved, the instruction is overwritten to throw a
verifier error. Second, if the data types of the field and instruction
mismatch, the verifier rejects the whole class. This change swaps the
order of the checks, so that if both errors occur, the class is
rejected.

Also, checks were added to prevent float values from being used as array
indexes or arguments to if statements.

Change-Id: I7b122f4ebc4043266be4466e10679c6319a788ef

13 years agoGC experiment.
Ben Cheng [Thu, 6 Oct 2011 05:43:34 +0000 (22:43 -0700)]
GC experiment.

Change-Id: Ifbeec98a796fe8347da25a1be50288d756b40f02

13 years agomerge in ics-release history after reset to master
The Android Automerger [Wed, 5 Oct 2011 13:58:05 +0000 (06:58 -0700)]
merge in ics-release history after reset to master

13 years agoFixed dx verifier issue when an error is detected.
jeffhao [Tue, 4 Oct 2011 21:33:57 +0000 (14:33 -0700)]
Fixed dx verifier issue when an error is detected.

The code needed to break out properly when an error was detected to
prevent it from causing even more problems.

Change-Id: If497655a406689aeb1b4aa6523421cc22f2b7593

13 years agomerge in ics-release history after reset to master
The Android Automerger [Fri, 30 Sep 2011 13:44:24 +0000 (06:44 -0700)]
merge in ics-release history after reset to master

13 years agoFix a typo in unused code.
Elliott Hughes [Thu, 29 Sep 2011 17:47:22 +0000 (10:47 -0700)]
Fix a typo in unused code.

Change-Id: Ied11a79337a3cc795428dfde29e405ec0bbcb98c

13 years agomerge in ics-release history after reset to master
The Android Automerger [Thu, 29 Sep 2011 00:57:05 +0000 (17:57 -0700)]
merge in ics-release history after reset to master

13 years agoFix memory barriers (Issue 3338450)
buzbee [Tue, 27 Sep 2011 18:47:28 +0000 (11:47 -0700)]
Fix memory barriers (Issue 3338450)

Add extra memory barrier on volatile stores.

Change-Id: Id4a4750cdfc910eda2f0b44ead0af2a569b5735e

13 years agomerge in ics-release history after reset to master
The Android Automerger [Wed, 21 Sep 2011 13:59:19 +0000 (06:59 -0700)]
merge in ics-release history after reset to master

13 years agoDon't spam the logs with thread priority information.
Jesse Wilson [Tue, 20 Sep 2011 15:52:02 +0000 (11:52 -0400)]
Don't spam the logs with thread priority information.

Ten minutes of logs contained 108 lines of 'Elevating priority from 10 to 0'
and 108 lines of 'Reset priority to 10'. This provides little value.

Change-Id: Id96e8304238aa3344af4dd6342ace575534acc0f

13 years agoAttempt to fix dalvik heap corruption.
Jesse Wilson [Tue, 6 Sep 2011 16:55:25 +0000 (12:55 -0400)]
Attempt to fix dalvik heap corruption.

This is bccheng's find, as reported here:
http://b/5208786#ISSUE_HistoryHeader49

Bug: http://b/5208786
Change-Id: I1616bac1ef6c197f723656187a784fc6838975d4

13 years agoAttempt to fix dalvik heap corruption.
Jesse Wilson [Tue, 6 Sep 2011 16:55:25 +0000 (12:55 -0400)]
Attempt to fix dalvik heap corruption.

This is bccheng's find, as reported here:
http://b/5208786#ISSUE_HistoryHeader49

Bug: http://b/5208786
Change-Id: I1616bac1ef6c197f723656187a784fc6838975d4

13 years agomerge in ics-release history after reset to master
The Android Automerger [Tue, 6 Sep 2011 13:33:14 +0000 (06:33 -0700)]
merge in ics-release history after reset to master

13 years agomerge in ics-release history after reset to master
The Android Automerger [Mon, 5 Sep 2011 13:33:20 +0000 (06:33 -0700)]
merge in ics-release history after reset to master

13 years agoFix document formatting error (html tags)
Logan Chien [Mon, 5 Sep 2011 13:14:25 +0000 (21:14 +0800)]
Fix document formatting error (html tags)

Change-Id: I57d10b69f400ce3ffda1a26dc632a4122a4f3d70

13 years agomerge in ics-release history after reset to master
The Android Automerger [Fri, 2 Sep 2011 23:01:51 +0000 (16:01 -0700)]
merge in ics-release history after reset to master

13 years agoMerge "Dx reg allocator fix for accidental long/double clobbering."
jeffhao [Fri, 2 Sep 2011 19:00:05 +0000 (12:00 -0700)]
Merge "Dx reg allocator fix for accidental long/double clobbering."

13 years agoMerge "Rename register to conform to instruction format"
Shih-wei Liao [Fri, 2 Sep 2011 14:15:10 +0000 (07:15 -0700)]
Merge "Rename register to conform to instruction format"

13 years agomerge in ics-release history after reset to master
The Android Automerger [Thu, 1 Sep 2011 13:33:23 +0000 (06:33 -0700)]
merge in ics-release history after reset to master

13 years agoRename register to conform to instruction format
Logan Chien [Thu, 1 Sep 2011 07:19:31 +0000 (15:19 +0800)]
Rename register to conform to instruction format

For instruction format 35c, 41c, 52c, and 5rc, the register
name was different from the Dalvik Instruction Format document,
and InstrUtils.cpp of libdex.  This commit updates the name,
so that they will look consistent.

Change-Id: I857b1f9c1ac7178dc147d0019df589c9c6d102e1

13 years agoFix a corner-case dex merging bug.
Jesse Wilson [Wed, 31 Aug 2011 19:00:57 +0000 (15:00 -0400)]
Fix a corner-case dex merging bug.

When doing a null merge (merging a dex file with an empty file) word-alignment
means that the output may be two bytes longer than the input. Always include the
rounded-up length in the bytes allocated to a section.

com.android.dx.util.DexException: Section limit 669894 exceeded by type list
at com.android.dx.io.DexBuffer$Section.ensureCapacity(DexBuffer.java:541)
at com.android.dx.io.DexBuffer$Section.writeShort(DexBuffer.java:574)
at com.android.dx.io.DexBuffer$Section.writeTypeList(DexBuffer.java:636)
at com.android.dx.merge.DexMerger$3.write(DexMerger.java:439)
at com.android.dx.merge.DexMerger$3.write(DexMerger.java:424)
at com.android.dx.merge.DexMerger$IdMerger.mergeUnsorted(DexMerger.java:321)

Change-Id: I67b81ba8c837b0307e313f4012a051b022b25db2

13 years agomerge in ics-release history after reset to master
The Android Automerger [Wed, 31 Aug 2011 13:33:16 +0000 (06:33 -0700)]
merge in ics-release history after reset to master

13 years agoam 4130f726: am 1dd1d924: am e4e76feb: Merge "Set DX stack size to 1M by default...
Raphael Moll [Tue, 30 Aug 2011 16:50:59 +0000 (09:50 -0700)]
am 4130f726: am 1dd1d924: am e4e76feb: Merge "Set DX stack size to 1M by default on Windows."

* commit '4130f726d82493748bf7252da631e1f315f2538c':
  Set DX stack size to 1M by default on Windows.

13 years agoam 1dd1d924: am e4e76feb: Merge "Set DX stack size to 1M by default on Windows."
Raphael Moll [Tue, 30 Aug 2011 01:01:08 +0000 (18:01 -0700)]
am 1dd1d924: am e4e76feb: Merge "Set DX stack size to 1M by default on Windows."

* commit '1dd1d9246c0804d1b4fda955c56a6d89c989ec6a':
  Set DX stack size to 1M by default on Windows.

13 years agoam e4e76feb: Merge "Set DX stack size to 1M by default on Windows."
Raphael Moll [Tue, 30 Aug 2011 00:58:08 +0000 (17:58 -0700)]
am e4e76feb: Merge "Set DX stack size to 1M by default on Windows."

* commit 'e4e76feb6aad0d0161fabe12cb7d97e665f7b109':
  Set DX stack size to 1M by default on Windows.

13 years agoMerge "Set DX stack size to 1M by default on Windows."
Raphael Moll [Fri, 26 Aug 2011 23:33:03 +0000 (16:33 -0700)]
Merge "Set DX stack size to 1M by default on Windows."

13 years agoDx reg allocator fix for accidental long/double clobbering.
jeffhao [Fri, 26 Aug 2011 22:01:11 +0000 (15:01 -0700)]
Dx reg allocator fix for accidental long/double clobbering.

Addresses this bug: http://b/issue?id=5215643.

Change-Id: I82613c38b0a6247d071aa6c5cc90bf8b60d5d84b

13 years agoSet DX stack size to 1M by default on Windows.
Raphael Moll [Fri, 26 Aug 2011 21:42:41 +0000 (14:42 -0700)]
Set DX stack size to 1M by default on Windows.

Bug: http://code.google.com/p/android/issues/detail?id=15181

Summary of bug: some user reported issues running dx.bat and
Fadden figured out the VM's stack size default was too small.
Using -Xss1m fixed it.

This CL introduces a default of -Xss1m and the usual mechanism
to override it using -JXssNm (like for -JXmx...)

Change-Id: I9769316c1708f08c91b93e07bd6d713a10561ea2

13 years agomerge in ics-release history after reset to master
The Android Automerger [Wed, 24 Aug 2011 13:33:17 +0000 (06:33 -0700)]
merge in ics-release history after reset to master