History log of /art/runtime/reflection.cc
Revision Date Author Comments
103992b9171fac9eceb2fe4015ab04f544b9c559 05-Jan-2016 Andreas Gampe <agampe@google.com> ART: Move ThrowStackOverflowError to common_throws

This should really be in common_throws considering all the callers.

Change-Id: I410c07cbf5659f216d44597530cb85f99740f320
f015c2f4835a9985a8b31cfc810129b69865a6c4 09-Sep-2015 Andreas Gampe <agampe@google.com> ART: Add missing GetInterfaceMethodIfProxy

Add missing uses of GetInterfaceMethodIfProxy in reflection code.

Add a test case for a JNI call to a proxy method.

Bug: https://code.google.com/p/android-developer-preview/issues/detail?id=2973
Bug: 23886441

(cherry picked from commit e80673245c0433a71a4930e460be5dc0920885b2)

Change-Id: I5b66b64b5561fcee15d0314707d67e8abc02ce5b
e80673245c0433a71a4930e460be5dc0920885b2 09-Sep-2015 Andreas Gampe <agampe@google.com> ART: Add missing GetInterfaceMethodIfProxy

Add missing uses of GetInterfaceMethodIfProxy in reflection code.

Add a test case for a JNI call to a proxy method.

Bug: https://code.google.com/p/android-developer-preview/issues/detail?id=2973
Bug: 23886441
Change-Id: I5b66b64b5561fcee15d0314707d67e8abc02ce5b
05792b98980741111b4d0a24d68cff2a8e070a3a 03-Aug-2015 Vladimir Marko <vmarko@google.com> ART: Move DexCache arrays to native.

This CL has a companion CL in libcore/
https://android-review.googlesource.com/162985

Change-Id: Icbc9e20ad1b565e603195b12714762bb446515fa
3887c468d731420e929e6ad3acf190d5431e94fc 12-Aug-2015 Roland Levillain <rpl@google.com> Remove unnecessary `explicit` qualifiers on constructors.

Change-Id: Id12e392ad50f66a6e2251a68662b7959315dc567
54d220eb9cc51215d75b9e0fe921b94bebbb3fd6 31-Jul-2015 Mathieu Chartier <mathieuc@google.com> Move ArtFields and ArtMethods to be a length prefixed array

Fixes race conditions between changing method and fields arrays
being seen in the wrong order by the GC.

Bug: 22832610
Change-Id: Ia21d6698f73ba207a6392c3d6b9be2658933073f
90443477f9a0061581c420775ce3b7eeae7468bc 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
3d21bdf8894e780d349c481e5c9e29fe1556051c 22-Apr-2015 Mathieu Chartier <mathieuc@google.com> Move mirror::ArtMethod to native

Optimizing + quick tests are passing, devices boot.

TODO: Test and fix bugs in mips64.

Saves 16 bytes per most ArtMethod, 7.5MB reduction in system PSS.
Some of the savings are from removal of virtual methods and direct
methods object arrays.

Bug: 19264997

(cherry picked from commit e401d146407d61eeb99f8d6176b2ac13c4df1e33)

Change-Id: I622469a0cfa0e7082a2119f3d6a9491eb61e3f3d

Fix some ArtMethod related bugs

Added root visiting for runtime methods, not currently required
since the GcRoots in these methods are null.

Added missing GetInterfaceMethodIfProxy in GetMethodLine, fixes
--trace run-tests 005, 044.

Fixed optimizing compiler bug where we used a normal stack location
instead of double on ARM64, this fixes the debuggable tests.

TODO: Fix JDWP tests.

Bug: 19264997

Change-Id: I7c55f69c61d1b45351fd0dc7185ffe5efad82bd3

ART: Fix casts for 64-bit pointers on 32-bit compiler.

Bug: 19264997
Change-Id: Ief45cdd4bae5a43fc8bfdfa7cf744e2c57529457

Fix JDWP tests after ArtMethod change

Fixes Throwable::GetStackDepth for exception event detection after
internal stack trace representation change.

Adds missing ArtMethod::GetInterfaceMethodIfProxy call in case of
proxy method.

Bug: 19264997
Change-Id: I363e293796848c3ec491c963813f62d868da44d2

Fix accidental IMT and root marking regression

Was always using the conflict trampoline. Also included fix for
regression in GC time caused by extra roots. Most of the regression
was IMT.

Fixed bug in DumpGcPerformanceInfo where we would get SIGABRT due to
detached thread.

EvaluateAndApplyChanges:
From ~2500 -> ~1980
GC time: 8.2s -> 7.2s due to 1s less of MarkConcurrentRoots

Bug: 19264997
Change-Id: I4333e80a8268c2ed1284f87f25b9f113d4f2c7e0

Fix bogus image test assert

Previously we were comparing the size of the non moving space to
size of the image file.

Now we properly compare the size of the image space against the size
of the image file.

Bug: 19264997
Change-Id: I7359f1f73ae3df60c5147245935a24431c04808a

[MIPS64] Fix art_quick_invoke_stub argument offsets.

ArtMethod reference's size got bigger, so we need to move other args
and leave enough space for ArtMethod* and 'this' pointer.

This fixes mips64 boot.

Bug: 19264997
Change-Id: I47198d5f39a4caab30b3b77479d5eedaad5006ab
e401d146407d61eeb99f8d6176b2ac13c4df1e33 22-Apr-2015 Mathieu Chartier <mathieuc@google.com> Move mirror::ArtMethod to native

Optimizing + quick tests are passing, devices boot.

TODO: Test and fix bugs in mips64.

Saves 16 bytes per most ArtMethod, 7.5MB reduction in system PSS.
Some of the savings are from removal of virtual methods and direct
methods object arrays.

Bug: 19264997
Change-Id: I622469a0cfa0e7082a2119f3d6a9491eb61e3f3d
83c81955bfbfe8fbe6daf215ca73e436747e3e60 28-May-2015 Jeff Hao <jeffhao@google.com> Fix updating of JNI references for String.<init>.

Was missing updates to globals and weak globals.

Bug: 21288130
Bug: 21440428

(cherry picked from commit 1a302fb4f84525289c1cf7a437f5be1999a75251)

Change-Id: I41b64e8aae906f5986de483db096d8191e45f260
1a302fb4f84525289c1cf7a437f5be1999a75251 28-May-2015 Jeff Hao <jeffhao@google.com> Fix updating of JNI references for String.<init>.

Was missing updates to globals and weak globals.

Bug: 21288130
Bug: 21440428
Change-Id: I5f801f68b61f6b066b441b92ace367e6ba434789
39b6c24ce68cf05db0f82f454b4401cfb03d675f 20-May-2015 Jeff Hao <jeffhao@google.com> Intercept JNI invocation of String.<init> methods.

libmono uses JNI AllocObject and CallNonvirtualVoidMethod to create and
initialize a string instead of using the recommended NewObject. This
change adds an intercept to change the String.<init> call to a
StringFactory call instead. Then, it uses the object id of the original
string object referrer and maps it to the result of the StringFactory.

Bug: 21288130

(cherry picked from commit 15e9ad1d028d7f12cb598b075453173532a00d91)

Change-Id: I3421c43722c07397da4a398c2ca9110e1d40bcfa
15e9ad1d028d7f12cb598b075453173532a00d91 20-May-2015 Jeff Hao <jeffhao@google.com> Intercept JNI invocation of String.<init> methods.

libmono uses JNI AllocObject and CallNonvirtualVoidMethod to create and
initialize a string instead of using the recommended NewObject. This
change adds an intercept to change the String.<init> call to a
StringFactory call instead. Then, it uses the object id of the original
string object referrer and maps it to the result of the StringFactory.

Bug: 21288130
Change-Id: Ib4db402c178bc37188d5c5faf30b6e4fdc747b17
54462546aad8adb552e74e422f5f2fb107b7ee1b 07-May-2015 Sebastien Hertz <shertz@google.com> Remove unused InvokeWithShadowFrame

This is an artifact of the Portable compiler, probably left after its
removal https://android-review.googlesource.com/119049.

Change-Id: I7f6caa008e37e7a93792840c79713e90d0c7e1e1
848f70a3d73833fc1bf3032a9ff6812e429661d9 15-Jan-2014 Jeff Hao <jeffhao@google.com> Replace String CharArray with internal uint16_t array.

Summary of high level changes:
- Adds compiler inliner support to identify string init methods
- Adds compiler support (quick & optimizing) with new invoke code path
that calls method off the thread pointer
- Adds thread entrypoints for all string init methods
- Adds map to verifier to log when receiver of string init has been
copied to other registers. used by compiler and interpreter

Change-Id: I797b992a8feb566f9ad73060011ab6f51eb7ce01
f36cb5f65cb150151aa40b23937e2b0ad75cc546 25-Apr-2015 Mathieu Chartier <mathieuc@google.com> Move Class.newInstance to native

Avoids 1 allocation and several JNI transitions.

Before:
Class_classNewInstance: 4462.39 ns; σ=39.42 ns @ 3 trials

After:
Class_classNewInstance: 1073.39 ns; σ=24.14 ns @ 10 trials

Bug: 20269715
Bug: 20566996
Change-Id: Icd52155ce79a978a4d869855bfdfd7735abd8187
a61894d88fabe45677f491c9f6bde30059a49026 24-Apr-2015 Mathieu Chartier <mathieuc@google.com> Fix reflection handling and test flakiness

Fixed reflection invoke to handle exceptions which occur from
FindClass or NewObject by throwing these instead of
the expected InvocationTargetException.

Added test case to 080 for this reflection invoke.

Fixed println throwing OOM in 104-growth-limit.

Change-Id: I65766e7c3478e299da06fdc3a521fe3f3e8fdba9
fc58af45e342ba9e18bbdf597f205a58ec731658 17-Apr-2015 Mathieu Chartier <mathieuc@google.com> Add AbstractMethod, Constructor, Method

Moves functionality to ART from libcore. Precursor to moving
ArtMethods to native. Mostly performance improvements.

N5 perf before (irrelevant results removed):
Class_getConstructor 962.87 ===========
Class_getDeclaredMethod 2394.37 ============================
Class_getMethod 2509.20 ==============================
Class_newInstance 1999.81 =======================
Method_invokeI 1439.02 =================
Method_invokePreBoxedI 1415.82 ================
Method_invokeStaticI 1456.24 =================
Method_invokeStaticPreBoxedI 1427.32 =================
Method_invokeStaticV 814.47 =========
Method_invokeV 816.56 =========
After:
benchmark ns linear runtime
Class_getConstructor 1302.04 ================
Class_getDeclaredMethod 1459.01 ==================
Class_getMethod 1560.40 ===================
Class_newInstance 2029.94 =========================
Method_invokeI 1312.89 ================
Method_invokePreBoxedI 1255.01 ===============
Method_invokeStaticI 1289.13 ===============
Method_invokeStaticPreBoxedI 1196.52 ==============
Method_invokeStaticV 790.82 =========
Method_invokeV 791.73 =========

Performance improvements are more than just fixing regressions introduced
in: http://android-review.googlesource.com/#/c/146069/

Bug: 19264997

Change-Id: Ife79c469fdb09f30e3aefcfc3e0ce5ed32303fce
c785344b87221f5e4e6473e5b762e4e61fe65dcf 27-Mar-2015 Mathieu Chartier <mathieuc@google.com> Move ArtField to native

Add linear alloc. Moved ArtField to be native object. Changed image
writer to put ArtFields after the mirror section.

Savings:
2MB on low ram devices
4MB on normal devices

Total PSS measurements before (normal N5, 95s after shell start):
Image size: 7729152 bytes
23112 kB: .NonMoving
23212 kB: .NonMoving
22868 kB: .NonMoving
23072 kB: .NonMoving
22836 kB: .NonMoving
19618 kB: .Zygote
19850 kB: .Zygote
19623 kB: .Zygote
19924 kB: .Zygote
19612 kB: .Zygote
Avg: 42745.4 kB

After:
Image size: 7462912 bytes
17440 kB: .NonMoving
16776 kB: .NonMoving
16804 kB: .NonMoving
17812 kB: .NonMoving
16820 kB: .NonMoving
18788 kB: .Zygote
18856 kB: .Zygote
19064 kB: .Zygote
18841 kB: .Zygote
18629 kB: .Zygote
3499 kB: .LinearAlloc
3408 kB: .LinearAlloc
3424 kB: .LinearAlloc
3600 kB: .LinearAlloc
3436 kB: .LinearAlloc
Avg: 39439.4 kB

No reflection performance changes.

Bug: 19264997
Bug: 17643507

Change-Id: I10c73a37913332080aeb978c7c94713bdfe4fe1c
ca239af73e512df5eeb80fe6c09c2ca614649e06 30-Mar-2015 Mathieu Chartier <mathieuc@google.com> Fix some reflection errors

Fixed incorrectly using 2nd frame instead of 1st in VerifyAccess.
Added regression test to ART. Fixed broken setShort,
getDeclaredFieldInternal.

Change-Id: I4b21d52d998cb768fe9503b8bccec506b7b972e5
daaf3265806eb2eadb2e03302bd68022fab5ca28 24-Mar-2015 Mathieu Chartier <mathieuc@google.com> Add AccessibleObject and Field to mirror

Main motivation is to remove all the functionality / field access on
java side to ArtField. Also comes with some reflection speedups /
slowdowns.

Summary results:
getDeclaredField/getField are slower mostly due to JNI overhead.
However, there is a large speedup in getInt, setInt,
GetInstanceField, and GetStaticField.

Before timings (N5 --compiler-filter=everything):

benchmark ns linear runtime
Class_getDeclaredField 782.86 ===
Class_getField 832.77 ===
Field_getInt 160.17 =
Field_setInt 195.88 =
GetInstanceField 3214.38 ==============
GetStaticField 6809.49 ==============================

After:
Class_getDeclaredField 1068.15 ============
Class_getField 1180.00 ==============
Field_getInt 121.85 =
Field_setInt 139.98 =
GetInstanceField 1986.15 =======================
GetStaticField 2523.63 ==============================

Bug: 19264997

Change-Id: Ic0d0fc1b56b95cd6d60f8e76f19caeaa23045c77
0aa50ce2fb75bfc2e815a0c33adf9b049561923b 10-Mar-2015 Nicolas Geoffray <ngeoffray@google.com> Remove ThrowLocation.

Note that this is a cleanup change, and has no functionality change.
The ThrowLocation had no use anymore.

Change-Id: I3d2126af1dc673cec3a0453ff3d56a172663a5f6
14691c5e786e8c2c5734f687e4c96217340771be 05-Mar-2015 Nicolas Geoffray <ngeoffray@google.com> Compute the right catch location for the debugger.

Also remove tls ThrowLocation, it is not needed anymore.

Change-Id: I78fddf09ce968ca475e39c17fa76d699c589c8d9
956af0f0cb05422e38c1d22cbef309d16b8a1a12 11-Dec-2014 Elliott Hughes <enh@google.com> Remove portable.

Change-Id: I3bf3250fa866fd2265f1b115d52fa5dedc48a7fc
a0485607a4a4d8c683a9849f6f20902c4e1da7a4 03-Dec-2014 Ian Rogers <irogers@google.com> Move GetClassFromTypeIdx to ArtMethod.

Move GetClassFromTypeIdx out of MethodHelper into ArtMethod in
preparation for the removal of MethodHelper.

Change-Id: I9c03dd8c821944c606ea08cdf92afc80c4275247
e94652f1e321b2c8b71acbe5b07d2ebf69fbdb99 02-Dec-2014 Ian Rogers <irogers@google.com> Remove MethodHelper from the interpreter.

Use ShadowFrame to get the executing method to avoid a handle for the current
method.
Various associated bits of header file clean-up and removal of an unnecessary
use of MethodHelper in CompilerDriver.

Change-Id: I3b6f4413701e8fc6b0c58b0041a0dd15472bedaa
9ee0f776095c0a93f388a29f2c37689892baa2df 26-Sep-2014 Mathieu Chartier <mathieuc@google.com> Optimize get/set reflection performance

Speedups mostly from reducing how often access checks are needed,
and adding more inlining, and adding templates.

Field_getInt from ~850ns -> 350ns.
Field_setInt from ~900ns -> 370ns.

Bug: 14063288
Change-Id: I2441581ff3478c6ae43b6aa49939ff3f07555ec8
(cherry picked from commit ffc788cb7b5b9f53734d7bb8af2d5e45d885546b)
6a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866f 31-Oct-2014 Ian Rogers <irogers@google.com> Remove -Wno-unused-parameter and -Wno-sign-promo from base cflags.

Fix associated errors about unused paramenters and implict sign conversions.
For sign conversion this was largely in the area of enums, so add ostream
operators for the effected enums and fix tools/generate-operator-out.py.
Tidy arena allocation code and arena allocated data types, rather than fixing
new and delete operators.
Remove dead code.

Change-Id: I5b433e722d2f75baacfacae4d32aef4a828bfe1b
ded66a01f81812e0129d17c3d08d5eda18433062 29-Oct-2014 Ian Rogers <irogers@google.com> Move MethodHelper::GetReturnType to mirror::ArtMethod.

Also, fix missing handle in HasSameSignatureWithDifferentClassLoaders.

Change-Id: I9e1ffd09be950ecc8346fc3c485760d82d9ecab3
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
c0d8229898c44c0f604f08a5df1de83ff56c18fd 23-Sep-2014 Andreas Gampe <agampe@google.com> ART: Better IllegalAccessException message

Bug: 17618578
Bug: 17614623
Change-Id: I0e3f15e676acd6ed5844fc86e136f75cc335372d
76433275dbe39e5ced1c223b006d1b900b1937f6 26-Sep-2014 Mathieu Chartier <mathieuc@google.com> Optimize get/set reflection performance

Speedups mostly from reducing how often access checks are needed,
and adding more inlining, and adding templates.

Field_getInt from ~850ns -> 350ns.
Field_setInt from ~900ns -> 370ns.

Bug: 14063288

(cherry picked from commit ffc788cb7b5b9f53734d7bb8af2d5e45d885546b)

Change-Id: I2441581ff3478c6ae43b6aa49939ff3f07555ec8
ffc788cb7b5b9f53734d7bb8af2d5e45d885546b 26-Sep-2014 Mathieu Chartier <mathieuc@google.com> Optimize get/set reflection performance

Speedups mostly from reducing how often access checks are needed,
and adding more inlining, and adding templates.

Field_getInt from ~850ns -> 350ns.
Field_setInt from ~900ns -> 370ns.

Bug: 14063288
Change-Id: I2441581ff3478c6ae43b6aa49939ff3f07555ec8
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
b038ba66a166fb264ca121632f447712e0973b5b 14-Aug-2014 Dave Allison <dallison@google.com> Revert "Revert "Reduce stack usage for overflow checks""

Fixes stack protection issue.
Fixes mac build issue.

This reverts commit 83b1940e6482b9d8feba5c492507735686650ea5.

Change-Id: I7ba17252882b23a740bcda2ea94aacf398255406
4cf00ba324f5f6884059796a6ba41937f32e1844 14-Aug-2014 Dave Allison <dallison@google.com> Revert "Reduce stack usage for overflow checks"

This reverts commit 63c051a540e6dfc806f656b88ac3a63e99395429.

Change-Id: I282a048994fcd130fe73842b16c21680053c592f
03c9785a8a6d712775cf406c4371d0227c44148f 14-Aug-2014 Dave Allison <dallison@google.com> Revert "Revert "Reduce stack usage for overflow checks""

Fixes stack protection issue.
Fixes mac build issue.

This reverts commit 83b1940e6482b9d8feba5c492507735686650ea5.

Change-Id: I7ba17252882b23a740bcda2ea94aacf398255406
83b1940e6482b9d8feba5c492507735686650ea5 14-Aug-2014 Dave Allison <dallison@google.com> Revert "Reduce stack usage for overflow checks"

This reverts commit 63c051a540e6dfc806f656b88ac3a63e99395429.

Change-Id: I282a048994fcd130fe73842b16c21680053c592f
63c051a540e6dfc806f656b88ac3a63e99395429 26-Jul-2014 Dave Allison <dallison@google.com> Reduce stack usage for overflow checks

This reduces the stack space reserved for overflow checks to 12K, split
into an 8K gap and a 4K protected region. GC needs over 8K when running
in a stack overflow situation.

Also prevents signal runaway by detecting a signal inside code that
resulted from a signal handler invokation. And adds a max signal count to
the SignalTest to prevent it running forever.

Also reduces the number of iterations for the InterfaceTest as this was
taking (almost) forever with the --trace option on run-test.

Bug: 15435566

Change-Id: Id4fd46f22d52d42a9eb431ca07948673e8fda694

Conflicts:
compiler/optimizing/code_generator_x86_64.cc
runtime/arch/x86/fault_handler_x86.cc
runtime/arch/x86_64/quick_entrypoints_x86_64.S
cb6b0f31ede2275e79e6199ec391147585a37a2a 12-Aug-2014 Ian Rogers <irogers@google.com> Avoid use of std::string where we have const char*.

Removing the ClassHelper caused std::string creation for all calls to
Class::GetDescriptor and a significant performance regression. Make the
std::string an out argument so the caller can maintain it and its life time
while allowing GetDescriptor to return the common const char* case.

Don't generate GC maps when compilation is disabled.

Remove other uses of std::string that are occuring on critical paths.
Use the cheaper SkipClass in CompileMethod in CompilerDriver.
Specialize the utf8 as utf16 comparison code for the common shorter byte
encoding.
Force a bit of inlining, remove some UNLIKELYs (they are prone to pessimizing
code), add some LIKELYs.

x86-64 host 1-thread interpret-only of 57 apks:
Before: 29.539s
After: 23.467s

Regular compile:
Before: 1m35.347s
After: 1m20.056s

Bug: 16853450
Change-Id: Ic705ea24784bee24ab80084d06174cbf87d557ad

Conflicts:
runtime/utils.cc
1ff3c98775a4577cf053dba9a0c2d5c21c07b298 12-Aug-2014 Ian Rogers <irogers@google.com> Avoid use of std::string where we have const char*.

Removing the ClassHelper caused std::string creation for all calls to
Class::GetDescriptor and a significant performance regression. Make the
std::string an out argument so the caller can maintain it and its life time
while allowing GetDescriptor to return the common const char* case.

Don't generate GC maps when compilation is disabled.

Remove other uses of std::string that are occuring on critical paths.
Use the cheaper SkipClass in CompileMethod in CompilerDriver.
Specialize the utf8 as utf16 comparison code for the common shorter byte
encoding.
Force a bit of inlining, remove some UNLIKELYs (they are prone to pessimizing
code), add some LIKELYs.

x86-64 host 1-thread interpret-only of 57 apks:
Before: 29.539s
After: 23.467s

Regular compile:
Before: 1m35.347s
After: 1m20.056s

Bug: 16853450
Change-Id: Ic705ea24784bee24ab80084d06174cbf87d557ad
648d7112609dd19c38131b3e71c37bcbbd19d11e 26-Jul-2014 Dave Allison <dallison@google.com> Reduce stack usage for overflow checks

This reduces the stack space reserved for overflow checks to 12K, split
into an 8K gap and a 4K protected region. GC needs over 8K when running
in a stack overflow situation.

Also prevents signal runaway by detecting a signal inside code that
resulted from a signal handler invokation. And adds a max signal count to
the SignalTest to prevent it running forever.

Also reduces the number of iterations for the InterfaceTest as this was
taking (almost) forever with the --trace option on run-test.

Bug: 15435566

Change-Id: Id4fd46f22d52d42a9eb431ca07948673e8fda694
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
e5877a12c30afe10a5c6a1afaff7a47ef44a2a5f 16-Jul-2014 Ian Rogers <irogers@google.com> Fix x86 build.

Also fix attributes/annotalysis on entrypoint_utils functions now we have
clang that is smarter wrt warnings than GCC.

Change-Id: I69257b4ad9a27d07acbc973d21a1cfa4260a8ed6
22d5e735f403c57525fe868304c7123f0ce66399 16-Jul-2014 Ian Rogers <irogers@google.com> Remove object_utils.h.

Break into object_lock, field_helper and method_helper.
Clean up header files following this.
Also tidy some of the Handle code in response to compiler errors when resolving
the changes in this CL.

Change-Id: I73e63015a0f02a754d0866bfaf58208aebcaa295
e63db27db913f1a88e2095a1ee8239b2bb9124e8 16-Jul-2014 Ian Rogers <irogers@google.com> Break apart header files.

Create libart-gtest for common runtime and compiler gtest routines.
Rename CompilerCallbacksImpl that is quick compiler specific.
Rename trace clock source constants to not use the overloaded profiler term.

Change-Id: I4aac4bdc7e7850c68335f81e59a390133b54e933
0aa08bb3d443e294f9f99b4fa7572ff4d60e1e39 12-Jun-2014 Vladimir Marko <vmarko@google.com> Fix reflection access check for attached native threads.

Bug: 15539150

(cherry picked from commit 3bd7a6c1716935e758f230e2f199128cb3c28b42)

Change-Id: If7f6e023ef5a38220329cf5644e3a2af12cc1495
3bd7a6c1716935e758f230e2f199128cb3c28b42 12-Jun-2014 Vladimir Marko <vmarko@google.com> Fix reflection access check for attached native threads.

Bug: 15539150
Change-Id: Ie580cad1c0169d550162bcc878b07643259323c4
bfd9a4378eacaf2dc2bbe05ad48c5164fc93c9fe 22-May-2014 Mathieu Chartier <mathieuc@google.com> Change MethodHelper to use a Handle.

Added ConstHandle to help prevent errors where you modify the value
stored in the handle of the caller. Also fixed compaction bugs
related to not knowing MethodHelper::GetReturnType can resolve types.
This bug was present in interpreter RETURN_OBJECT.

Bug: 13077697

Change-Id: I71f964d4d810ab4debda1a09bc968af8f3c874a3
700a402244a1a423da4f3ba8032459f4b65fa18f 20-May-2014 Ian Rogers <irogers@google.com> Now we have a proper C++ library, use std::unique_ptr.

Also remove the Android.libcxx.mk and other bits of stlport compatibility
mechanics.

Change-Id: Icdf7188ba3c79cdf5617672c1cfd0a68ae596a61
2b7c4d196c8abe32f4ca633534917da9de53c359 19-May-2014 Mathieu Chartier <mathieuc@google.com> Don't get and restore thread state for ScopedFastNativeObjectAccess.

Before we would ensure that we were runnable for fast native object
access. However, these are done when you are already runnable.

Change-Id: Ia4c6e4c83d146fe2a988b37b3133ca46b0f0fa42
f832284dd847ff077577bb5712225430bbbb3b67 16-May-2014 Mathieu Chartier <mathieuc@google.com> Delete ClassHelper and fix compaction bug in GetDirectInterface

Cleanup helps to prevent compaction bugs. Fixed a fairly serious
compaction error caused by calling ClassHelper::GetDirectInterface
without handling the case where it causes thread suspension due to
ResolveType.

Bug: 8981901

Change-Id: I82b3bb6dd48d21eb6ece7aae0733c4a23c2bc408
eb8167a4f4d27fce0530f6724ab8032610cd146b 08-May-2014 Mathieu Chartier <mathieuc@google.com> Add Handle/HandleScope and delete SirtRef.

Delete SirtRef and replaced it with Handle. Handles are value types
which wrap around StackReference*.

Renamed StackIndirectReferenceTable to HandleScope.

Added a scoped handle wrapper which wraps around an Object** and
restores it in its destructor.

Renamed Handle::get -> Get.

Bug: 8473721

Change-Id: Idbfebd4f35af629f0f43931b7c5184b334822c7a
2406556ba503036cc56af6edcad7c5a2a1b0c7c1 01-Apr-2014 Jeff Hao <jeffhao@google.com> Fix reflection access checks for app compatibility.

Also updates field access test.

Bug: 13740995

Change-Id: I224712cfcb0c05429b831c26980cabad7bdef49a
925b687c29ddfe952c29e13e6c05c2491e3b37f7 01-Apr-2014 Jeff Hao <jeffhao@google.com> Fix reflection access checks for app compatibility.

Also updates field access test.

Bug: 13740995

Change-Id: I224712cfcb0c05429b831c26980cabad7bdef49a
dd9699a536e5d0c1a10b4bdb37b88312930793e8 01-Apr-2014 Jeff Hao <jeffhao@google.com> Revert "Fix access checks for app compatibility."

This reverts commit b59b2c8dbdea2a6a3086378f2cf65adc9bc282cd.

Change-Id: I718658b8450a5ce6249df317b635f63356b1ce3c
b59b2c8dbdea2a6a3086378f2cf65adc9bc282cd 01-Apr-2014 Jeff Hao <jeffhao@google.com> Fix access checks for app compatibility.

Change-Id: I3191e5e92d30e9bee24051fd305296ddcf143e18
cb4581aa13d6f43f705535818a4d0893d551be3a 28-Mar-2014 Jeff Hao <jeffhao@google.com> Some fixes for comments and implied conversions.

Addresses comments in:
https://android-review.googlesource.com/#/c/89148/3

Change-Id: If21cfaa541210c8702371efd1e6d4f071a7b9ec3
11d5d8fffe41cc7daadbfa2ca98ecb978f3029af 26-Mar-2014 Jeff Hao <jeffhao@google.com> Add access checks to Method and Field reflection.

Art side of this change. Has a corresponding libcore change.

Bug: 13620925
Change-Id: Ie67f802a2a400e8212b489b9a261b7028422d8ba
84956ff6c0ff150d86a08157216ded79217d860a 27-Mar-2014 Ian Rogers <irogers@google.com> Reflection tidying.

Move out arguments to the right and make pointer not reference types.
Remove unused unbox for argument routine.
Simplify convert primitive routine for the case of identical types.

Change-Id: I6456331b0f3f3e5f0b2c361a9f50b4ed1c9462a3
62f0512bf6d9bc6141358bf22e93afa70dc58b1a 21-Mar-2014 Ian Rogers <irogers@google.com> Improvements to Field.get/set.

Avoid unnecessary repeated computation in Field.get/set.
Refactor FromReflectedField and FromReflectedMethod into common helpers in
mirror::ArtField and mirror::ArtMethod, and make use of thereby avoiding
transitions through JNI.
Avoid JNI use from within FromReflectedField and FromReflectedMethod.
Tidy up Field.get/set wrt moving collector support.
Bug: 12189533

Change-Id: I643ab3474bade4abac3a3ae2b6e373b2bb0891c8
e18fdd2f0e57873c22113975739139abe7418e09 14-Mar-2014 Ian Rogers <irogers@google.com> Work-around GCC polymorphism problems.

Change-Id: Ica1d8e6840cdd9ba493405e66c1728b5da9540a2
11e4c038c5e319ee7dd423ff47ef9411920d198e 14-Mar-2014 Ian Rogers <irogers@google.com> 64bit build fix.

Change-Id: I8c597217955d12b215bdcf1d92ca5fab9a7ed6e0
53b8b09fc80329539585dcf43657bc5f4ecefdff 14-Mar-2014 Ian Rogers <irogers@google.com> Refactor reflective method invocation.

Move invocation code out of JNI internal into reflection, including ArgArray
code. Make reflective invocation use the ArgArray to build arguments rather
than allocating a jvalue[] and unboxing arguments into that.
Move reflection part of jni_internal_test into reflection_test.
Make greater use of fast JNI.

Change-Id: Ib381372df5f9a83679e30e7275de24fa0e6b1057
0177e53ea521ad58b70c305700dab32f1ac773b7 12-Feb-2014 Ian Rogers <irogers@google.com> Work in the direction of hard float quick ABIs.

Pass a shorty to ArtMethod::Invoke so that register setup can use it.
Document x86-64 ABI.
Add extra debug output for one JNI native method registration fails, namely a
dump of the Class and its dex file's location.
Add hack to get testing of OatMethod's without GC maps working in 64bit.

Change-Id: Ic06b68e18eac33637df2caf5e7e775ff95ae70f3
c528dba35b5faece51ca658fc008b688f8b690ad 26-Nov-2013 Mathieu Chartier <mathieuc@google.com> Enable moving classes.

Slight reduction in Zygote size, memory savings are in the noise.
Before: Zygote size: 8739224
After: Zygote size: 8733568

Fixed a bug where we didn't set the concurrent start bytes after
switching the allocator from bump pointer to ROSAlloc in the
zygote. This caused excessive memory usage.

Added the method verifiers as roots to fix an issue caused by
RegTypes holding a Class*.

Added logic to clear card table in the SemiSpace collector, this
reduces DalvikOther from ~2400k -> ~1760k when using the SemiSpace
collector.

Added a missing lock to the timing loggers which caused a rare
one time crash in std::set.

Bug: 11771255
Bug: 8499494
Bug: 10802951

Change-Id: I99d2b528cd51c1c5ed7012e3220b3aefded680ae
dfb325e0ddd746cd8f7c2e3723b3a573eb7cc111 30-Oct-2013 Ian Rogers <irogers@google.com> Don't use UTF16 length as length for MUTF8.

Bug 11367555.

Change-Id: Ia0b07072a1a49d435c3b71ed9a668b316b7ff5d8
fc0e94bed3f88ed7e50854fd8dfaf5dcb345250f 24-Sep-2013 Ian Rogers <irogers@google.com> StringPiece clean up.

Profile guided clean up.
Try to avoid creating StringPieces with the contents of a dex file where
the length is known.
Try to avoid RegTypeCache::FromDescriptor when there's a class available.
Make ConstantType::ConstantValue inlinable.
Saving of about 50ms from a 2 threaded ThinkFree compile on host.

Change-Id: I47a12c3c76f46e2c9805be1c3a3e3870fe1f5d85
2e450bf45e1bacc9c356f6ab239ccfb31bd8d7e4 07-Sep-2013 Brian Carlstrom <bdc@google.com> Revert "Remove bogus fastpath from String::Equals(const StringPiece&)"

This reverts commit 8438ed31e10f3881ed92f03877d5edaca7d5b48c.

Bug: 10614658
Change-Id: I335f10a7140e1644957bc1cee21a9b310a558499
8438ed31e10f3881ed92f03877d5edaca7d5b48c 05-Sep-2013 Brian Carlstrom <bdc@google.com> Remove bogus fastpath from String::Equals(const StringPiece&)

Bug: 10614658
Change-Id: I907ec77a65c1ae29e800356abdf755a457620081
ea46f950e7a51585db293cd7f047de190a482414 30-Jul-2013 Brian Carlstrom <bdc@google.com> Refactor java.lang.reflect implementation

Cherry-picked from commit ed41d5c44299ec5d44b8514f6e17f802f48094d1.

Move to ArtMethod/Field instead of AbstractMethod/Field and have
java.lang.reflect APIs delegate to ArtMethod/ArtField.

Bug: 10014286.

Change-Id: Iafc1d8c5b62562c9af8fb9fd8c5e1d61270536e7
7934ac288acfb2552bb0b06ec1f61e5820d924a4 26-Jul-2013 Brian Carlstrom <bdc@google.com> Fix cpplint whitespace/comments issues

Change-Id: Iae286862c85fb8fd8901eae1204cd6d271d69496
df62950e7a32031b82360c407d46a37b94188fbb 18-Jul-2013 Brian Carlstrom <bdc@google.com> Fix cpplint whitespace/parens issues

Change-Id: Ifc678d59a8bed24ffddde5a0e543620b17b0aba9
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