android_dalvik/libdex, branch gingerbread

Exclude sha1.c when building libdex for device

2011-10-01T17:17:38+00:00

In bionic, there is already an optimized SHA-1 hash implementation,
and the file 'sha1.c' in libdex is almost identical.  It is only
necessary to build sha1.c for host version of libdex.

In addition, the SHA-1 hash implementation in bionic is slightly faster
than the one included in libdex.

Here is the reference SHA-1 benchmark on Nexus S:

[libdex]
Rounds: 100000, size: 6250K, time: 1.28s,  speed: 4.768 MB/s

[bionic]
Rounds: 100000, size: 6250K, time: 1.184s, speed: 5.156 MB/s

Change-Id: Ia8918aeaeec75aceecbbb8cd55130d709a9fe311

Merge branch 'gingerbread' of git://git.omapzoom.org/platform/dalvik into 237

2011-09-29T23:19:43+00:00

Only use O_BINARY if it is defined (windows compatibility)

2011-06-09T18:51:34+00:00

Change-Id: Iaa3c0812ef4d90d46b4031be7f4faca84c7d7200
Signed-off-by: Bruce Beare

Combined patch from master branch

2011-06-09T16:15:58+00:00

From: Jack Ren
Date: Tue, 1 Mar 2011 21:10:42 +0800
Subject: [PATCH 1/2] sync with korg/master commit dd19f5b91a1032e60871febb143850fd81000c5a

following patches are applied in one time:

commit dd19f5b91a1032e60871febb143850fd81000c5a
Merge: 2b3d7e8 a62c84f
Author: Romain Guy
Date: Thu Feb 24 11:24:47 2011 -0800

Merge "Fix for a crash when GC weak references."

commit 2b3d7e8eccd7cbf64b2ac41c05073a9191d0d3b3
Merge: ef4b061 b4719ed
Author: Raphael Moll
Date: Tue Feb 22 14:55:59 2011 -0800

Merge "Open dexdump files in binary mode."

commit b4719eda048c4dc4a4b6e5280c7a2b8299051078
Author: Raphael Moll
Date: Wed Feb 16 13:39:27 2011 -0800

Open dexdump files in binary mode.

Requires change Ia5c0a59e from system/core
(which defines O_BINARY globally.)

commit a62c84f62a27a08d6bef6da0b96913d616dd659f
Author: Mattias Petersson
Date: Tue Dec 21 09:28:04 2010 +0100

Fix for a crash when GC weak references.

When a weak reference had been cleared there was a small risk that
the VM crashed when the cleared reference was garbage collected.

This is an example of code that can cause the problem:
Integer referent = new Integer(10);
wref = new WeakReference(referent);
wref.clear(); //set the referent to null

When a garbage collection starts, all objects are scanned, looking
for objects that can be collected. During this phase, a list of
weak references is created. A check is performed to ensure that
only references with a non-null referent are added to this list.
In most cases, for the example above, the referent will be null
at this point, and it will never be added to the list. But if
the timing is extremely bad it looks like it is possible for the
reference to end up on the list before the referent has been set
to null, and the referent is set to null a little while later.
This means that we now have a reference on the list with a null
referent.

A bit later in the garbage collection flow, the list of weak

s is traversed in order to clear the references that
can be collected. Here we got the crash because the code asserted
that the referent of the references in the list should be
non-null. And in some rare cases it actually was null. The fix
is simply to remove the assert.

commit ef4b0613d6952770aefac07d503955eb7b962d2b
Merge: 464104b e9503ef
Author: Andy McFadden
Date: Mon Nov 8 19:38:19 2010 -0800

am e9503ef8: am 886130bc: (-s ours) Two patches.

* commit 'e9503ef8c460f4818062ecc80a9e0b4f8c6745b8':
Two patches.

Change-Id: I04c1c9204af8197a4352358d805af40f1312d2ea
Signed-off-by: Bruce Beare

DexOpt anything in /system on /cache

2011-01-10T02:30:50+00:00

Change-Id: I24d77e263df1cf86c4d45174a654edabe0ecd9a5

Allow system property to disable use of /cache for dexfiles.

Correct dexopt for uniprocessors.

2010-09-30T22:15:32+00:00

The SMP flag was defaulting to "true" for dexopt, even on uniprocessors.
With this change the VM now has three choices: dexopt for SMP, dexopt
for uniprocessor, or dexopt for current system.  The last is used for
just-in-time dexopt (used by -eng and -userdebug builds on bootstrap DEX
files) and installd dexopt (used for apps on all builds).

The dexopt used by the build system during -user builds will either be
explicitly SMP or explicitly uniprocessor, since "current system" has
no meaning when you're cross-dexopting.

Also, unified the dexopt control flags into a single enum.

(cherry-pick from dalvik-dev)

Change-Id: Id1d9c548ca8567585a28ef9ee911cc2ac6b116dd

Add optional tags to dalvik.

2010-09-17T00:30:27+00:00

Change-Id: I29a78ccb6312d12b3ef0ed02cfbc638a5b01db9c

Remove the functionality in ReduceConstants.[ch].

2010-09-09T18:34:19+00:00

It was a good experiment to try, but it was never made production-ready,
and it doesn't look like it would be a net win at this point. We
metaphorically pour out a beer in its honor.

Change-Id: I7f6ac95f5b7c963df0a3015ed33595fa1a928636

Correct Volatile SGET/SPUT format tag, add missing cases for JIT

2010-09-03T16:17:43+00:00

Fix for http://b/issue?id=2971877, which was identified via
debug tracing on http://b/issue?id=2971569.  There were a couple
of problems: first, the volatile sget/sput byte codes had the
wrong format tag (22c instead of 21c).  Second, the JIT was missing
a couple of case statments to handle these.  As far as the JIT goes,
this would not have caused correctness problems, but would have
been slower than necessary.

Change-Id: I57a41c4e063642b0c19acba5bb0855dd8ce2d4ba

Let (or its substitute) get picked up via the preexisting

2010-09-01T23:44:23+00:00

mechanism in vm/Common.h.

Change-Id: I6b79ee3d67b23d8077567a1bce0a58ae46ceb7f3