| Commit message (Collapse) | Author | Age | Files | Lines |
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Also, fix quick iget/iput that had similar issues to:
https://android-review.googlesource.com/91423
Also, remove fall-back resolution code from quick invokes/igets/iputs as we
allow class loading for the exception throw and regular verification already
allows class loading.
Bug: 14133618
Change-Id: I51199e6e2392da0354f64b157e79af494c183778
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GC time in FormulaEvaluationActions.EvaluateAndApplyChanges goes from
26.1s to 23.2s. Benchmark score goes down ~50 in
FormulaEvaluationActions.EvaluateAndApplyChanges, and up ~50 in
GenericCalcActions.MemAllocTest.
Bug: 8788501
Change-Id: I412af1205f8b67e70a12237c990231ea62167bc0
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If we have the threads suspended, attempting to use a
ScopedObjectAccess causes a deadlock. We now specifically avoid this
to prevent deadlocks.
Bug: 13747880
Change-Id: I45fd3fff917da98b22970e5351a9e25b143a4eed
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By default the profiler starts immediately upon app startup. To delay the
startup by some random offset use -Xprofile-start_lazy.
Bug: 12877748
Change-Id: Ifc1bb7f79f9f9aa53204b2fb1fbae3cd5c780cac
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Necessary for proper cross-compiling.
Change-Id: I852901ee6ca5121e480b83a8e318bdc9c7d615e8
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This method aborts on failure (as it should) and unconditionally
returns true, so making it return void simplifies callers.
Change-Id: Iae39bd327f20311579ece47efa8afd1be7defce9
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This mode skips all verification and compilation.
Public bug: https://code.google.com/p/android/issues/detail?id=67664
Change-Id: Idd00ab8e9e46d129c02988b063c41a507e07bf5b
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Change-Id: I1727af7beb9f710c29124d4d6bc9175e4856f3cc
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Avoids code duplication across art/dalvik. Also, most of
this code is not directly related to the runtime (mounting external
storage, multi user etc.) and therefore belongs in the frameworks.
Change-Id: Icf4723dd0ec4521ef6b1f785c99d50aebca7779a
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Updates Thread::CreateInternalStackTrace to support both transactional and
non-transactional modes using template.
Generalizes non-transactional mode for invariant fields (which are set only
once).
Removes ArrayLog::VisitRoots as we never create Array logs of ObjectArray. As
ObjectArray elements are set using Object::SetFieldObject, they are already
recorded in the object logs: the object is the array itself and the offset
corresponds to the element index in this array. And also checks we never log
ObjectArray in array logs.
Fixes location of thrown exception when calling native method during class
initialization.
Change-Id: Idbc368d3b8292b85ff40bc8a7c559e085477bf89
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Bug: 13748830
Bug: 13744490
Change-Id: Ieec97cf58ebf9864a40ee85aae582cdcf3f27c0c
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Added a new FaultHandler which attempts to print a java stack trace
when a SIGSEGV occurse in generated code. This should help debugging
compiler and GC related heap corruption.
Bug: 13725693
Bug: 12934910
Change-Id: Id54d83ea180c222eb86d449c61926e83f0b026ad
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Begin a more full implementation x86-64 REX prefixes.
Doesn't implement 64bit thread offset support for the JNI compiler.
Change-Id: If9af2f08a1833c21ddb4b4077f9b03add1a05147
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Bug: 13634574
Change-Id: I2a76f6c43f1d0ad1922f06deb40a71ff651129fd
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STL implementations vary causing offsets not to be consistent. Place member
variables we care about the offsets of at the start of Runtime.
Change-Id: I3ad7fe606cb99bcdd884a8fdbdd06bd7e047cd84
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Adds support for arm64 to ART. Assembler stubs are sufficient for
down calls into interpreter. JNI compiler and generics are not finished.
Basic Generic JNI functionality.
Change-Id: I4a07c79d1e037b9f5746673480e32cf456867b82
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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
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This adds the ability to use SEGV signals
to throw NullPointerException exceptions from Java code rather
than having the compiler generate explicit comparisons and
branches. It does this by using sigaction to trap SIGSEGV and when triggered
makes sure it's in compiled code and if so, sets the return
address to the entry point to throw the exception.
It also uses this signal mechanism to determine whether to check
for thread suspension. Instead of the compiler generating calls
to a function to check for threads being suspended, the compiler
will now load indirect via an address in the TLS area. To trigger
a suspend, the contents of this address are changed from something
valid to 0. A SIGSEGV will occur and the handler will check
for a valid instruction pattern before invoking the thread
suspension check code.
If a user program taps SIGSEGV it will prevent our signal handler
working. This will cause a failure in the runtime.
There are two signal handlers at present. You can control them
individually using the flags -implicit-checks: on the runtime
command line. This takes a string parameter, a comma
separated set of strings. Each can be one of:
none switch off
null null pointer checks
suspend suspend checks
all all checks
So to switch only suspend checks on, pass:
-implicit-checks:suspend
There is also -explicit-checks to provide the reverse once
we change the default.
For dalvikvm, pass --runtime-arg -implicit-checks:foo,bar
The default is -implicit-checks:none
There is also a property 'dalvik.vm.implicit_checks' whose value is the same
string as the command option. The default is 'none'. For example to switch on
null checks using the option:
setprop dalvik.vm.implicit_checks null
It only works for ARM right now.
Bumps OAT version number due to change to Thread offsets.
Bug: 13121132
Change-Id: If743849138162f3c7c44a523247e413785677370
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If the profile file exists, the compiler driver will read it
and store the data in an internal map. Then, when we want to work
out whether to compile a method or not, the map is consulted and if
the method shows up with a high enough percentage of use we compile it.
The profile file itself is created by installd and is writeable by the
app. The file is in /data/dalvik-cache/profiles and is named by
the package name.
This also modifies the profiler itself to:
1. Only count runnable threads (not suspended threads) in the profile
2. Use system properties to allow tuning of the profile parameters
3. Merge profiles from multiple processes using file locking.
Bug: 12877748
Change-Id: Iab2f3a327a2860db2a80d5724277d6c626227f2b
Conflicts:
compiler/dex/frontend.cc
compiler/dex/mir_analysis.cc
compiler/dex/verification_results.cc
compiler/driver/compiler_driver.cc
dex2oat/dex2oat.cc
runtime/class_linker.cc
runtime/runtime.cc
runtime/runtime.h
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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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image_writer.cc
Remove assumption that all methods in the boot classpath are compiled
oat_writer.cc
Don't skip writing ArtMethod::quick_code_offset_ for methods that need resolution, leave that to ImageWriter
dex2oat.cc
Allow dex2dex compilation of image dex files by making the in memory pages writable in all cases, not just app case.
oatdump.cc
dump new OatHeader fields
use ImageSpace.GetImageFilename, not command line image filename, since location may be in dalvik-cache
remove inaccurate check about non-null GC map
quick_trampoline_entrypoints.cc
add and improve some DCHECKS that were useful while debugging
class_linker.cc
image_space.cc
fix double facepalm
parsed_options.cc
fix zygote logging to not skip values to two part options like -classpath <foo>
runtime.cc
wireup parsed compiler options to runtime
Change-Id: Iad314df0b80623c0663d61713d5098297ab9ac87
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The new root visiting logic has a concept of a root log which holds
new roots which were added since the start of the GC. This is an
optimization since it lets us only mark these newly added roots
during the pause (or pre-cleaning) since the other roots intern table
and class linker roots were marked concurrently at the start of the
GC.
Before (EvaluateAndApplyChanges):
MarkConcurrentRoots: Sum: 605.193ms
After:
MarkConcurrentRoots: Sum: 271.858ms
This should also reduce pathological GC pauses which used to be able
to happen when the intern table or class linker became "dirty"
during the concurrent GC.
Change-Id: I433fab021f2c339d50c35aaae7161a50a0901dec
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The oat file is now always in the same directory, and has the
same name as the image file. Only difference is the extension.
This also removes the need for host-prefix.
Change-Id: I16d1f7aeb1d58372d41921694664e9c321afc1ad
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Bug: https://code.google.com/p/android/issues/detail?id=62149
Change-Id: I5c21c0433f5f341f94e7d977e8d2d69cc46d6fe3
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The new signal handler prints heap diagnostics when you get a SIGSEGV.
Added a fault message member in runtime which is modifiable by
Runtime::SetFaultMessage. When you get a SIGSEGV it will print out
whatever is stored in this string as well as the normal information.
This is useful for debugging heap corruption since it lets you see
which threads were in which methods when the last GC occured.
Added some smarter object dumping logic when the faulting address is
in the heap.
Bug: 12934910
Change-Id: Ia72be2c39f70ad711cbd746d66fad2b617d5d29f
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Package up most compiler related options in CompilerOptions. Details include:
- Includes compiler filter, method thresholds, SEA IR mode.
- Excludes those needed during Runtime::Init such as CompilerCallbacks and VerificationResults.
- Pass CompilerOptions to CompilerDriver.
- Remove CompilerOptions from Runtime.
- Add ability to pass options for app and image dex2oat to runtime via
-Xcompiler-option and -Ximage-compiler-option respectively.
Other
- Replace 2x CompilerCallbacks implementations with one.
- Factor out execv code for use by both image and oat generation.
- More OatFile error_msg reporting.
- DCHECK for SuspendAll found trying to run valgrind.
Change-Id: Iecb57da907be0c856d00c3cd634b5042a229e620
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Sufficient to pass jni_internal_test.
Change-Id: Ia0d9b8241ab8450e04765b9c32eb6dc8fc1a8733
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Simplifies code and improves the performance of root visiting since
we usually don't need to check to see if the object moved.
Change-Id: Iba998f5a15ae1fa1b53ca5226dd2168a411196cf
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Removes the class initialization blacklist and use transaction to detect and
revert class initialization attempting to invoke native method. This only
concerns class initialization happening at compilation time when generating an
image (like boot.art for the system).
In transactional mode, we log every object's field assignment and array update.
Therefore we're able to abort a transaction to restore values of fields and
array as they were before the transaction starts. We also log changes to the
intern string table so we can restore its state prior to transaction start.
Since transactional mode only happens at compilation time, we don't need to log
all these changes at runtime. In order to reduce the overhead of testing if
transactional mode is on/off, we templatize interfaces of mirror::Object and
mirror::Array, respectively responsible for setting a field and setting an
array element.
For various reasons, we skip some specific fields from transaction:
- Object's class and array's length must remain unchanged so garbage collector
can compute object's size.
- Immutable fields only set during class loading: list of fields, method,
dex caches, vtables, ... as all classes have been loaded and verified before a
transaction occurs.
- Object's monitor for performance reason.
Before generating the image, we browse the heap to collect objects that need to
be written into it. Since the heap may still holds references to unreachable
objects due to aborted transactions, we trigger one collection at the end of
the class preinitialization phase.
Since the transaction is held by the runtime and all compilation threads share
the same runtime, we need to ensure only one compilation thread has exclusive
access to the runtime. To workaround this issue, we force class initialization
phase to run with only one thread. Note this is only done when generating image
so application compilation is not impacted. This issue will be addressed in a
separate CL.
Bug: 9676614
Change-Id: I221910a9183a5ba6c2b99a277f5a5a68bc69b5f9
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This reverts commit 4b23250f4cbf3047924c646c1a0c078394f8362d.
Change-Id: Ib749a8267abf35e51552b741ba749d6ed6975f95
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This reverts commit 41dcb9f856a2051527cd595f8fe7d200066acba4.
Change-Id: Ide6fa696c6fb43fe17e0993e8c9d1b588c99b1f3
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This reverts commit 1f5a90f28443886ebefcfbd531b8e41ece298cca.
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Change-Id: I0c48856d811c40662a6e4a4782478a0bc8e0f697
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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
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Enables us to pass the root type and thread id to hprof.
Bug: 12680863
Change-Id: I6a0f1f9e3aa8f9b4033d695818ae7ca3460d67cb
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Fixed GetInstances, GetReferringObjects, CountInstances to use
VisitObjects instead of the live bitmap.
We now treat the object registry as system weaks and update the
objects when/if they move. Also added the recent_allocation_records_
as roots.
Bug: 12936165
Change-Id: I615c289efbf2977ceab5c4ffa73d216d799e6e33
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If enabled, RosAlloc verification checks the allocator internal
metadata and invariants to detect bugs, heap corruptions, and race
conditions. Added runtime options for enabling and disabling
it. Enable it for the debug build.
Bug: 9986565
Bug: 12592026
Change-Id: I923742b87805ae839f1549d78d0d492733da6a58
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Modify mirror objects so that references between them use an ObjectReference
value type rather than an Object* so that functionality to compress larger
references can be captured in the ObjectRefererence implementation.
ObjectReferences are 32bit and all other aspects of object layout remain as
they are currently.
Expand fields in objects holding pointers so they can hold 64bit pointers. Its
expected the size of these will come down by improving where we hold compiler
meta-data.
Stub out x86_64 architecture specific runtime implementation.
Modify OutputStream so that reads and writes are of unsigned quantities.
Make the use of portable or quick code more explicit.
Templatize AtomicInteger to support more than just int32_t as a type.
Add missing, and fix issues relating to, missing annotalysis information on the
mutator lock.
Refactor and share implementations for array copy between System and uses
elsewhere in the runtime.
Fix numerous 64bit build issues.
Change-Id: I1a5694c251a42c9eff71084dfdd4b51fff716822
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When we transition to kWaitingForJniOnLoad, we are suspended and
a GC can occur. This caused issues since classloaders are movable.
Change-Id: Iae59019c22ac64322a82300107d06a4323ee602b
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The concurrent gc thread number and parallel gc thread number is configurable by the options,
This patch fix the bug that making the options value valid.
This patch also fix that GC log threshold settings as MillionSecond.
Change-Id: I737838ef4af44396c23a538cd8a33581d9ae5e4d
Author: Lin Zang <lin.zang@intel.com>
Signed-off-by: Jack Ren <jack.ren@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
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- Rather than looking up a class from its type ID (and checking if
it's resolved/initialized, resolving/initializing if not), use
direct class pointers, if possible (boot-code-to-boot-class pointers
and app-code-to-boot-class pointers.)
- This results in a 1-2% speedup in Ritz MemAllocTest on Nexus 4.
- Embedding the object size (along with class pointers) caused a 1-2%
slowdown in MemAllocTest and isn't implemented in this change.
- TODO: do the same for array allocations.
- TODO: when/if an application gets its own image, implement
app-code-to-app-class pointers.
- Fix a -XX:gc bug.
cf. https://android-review.googlesource.com/79460/
- Add /tmp/android-data/dalvik-cache to the list of locations to
remove oat files in clean-oat-host.
cf. https://android-review.googlesource.com/79550
- Add back a dropped UNLIKELY in FindMethodFromCode().
cf. https://android-review.googlesource.com/74205
Bug: 9986565
Change-Id: I590b96bd21f7a7472f88e36752e675547559a5b1
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Post GC heap verification is now enabled by default for debug builds.
Added four Xgc runtime options: preverify, nopreverify, postverify,
nopostverify.
Fixed another bug where the non-moving space could theoretically end
up outside of the card table address range.
Bug: 10672951
Change-Id: I5ba3cd96dbfb900263dba795242df74c563deaa3
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Default collector type had been changed to generational semi-space
by default by accident.
Change-Id: I060b3f292261b8bb258ca2a350e26a328340c49c
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