About the ART on Nexus 5

[Qiang Wang]

Hi, all

I'm switching from Android 4.4 to Android 5.1.

I'm using Nexus 5.

I know well about the dalvik in which I can replace the framework.jar when need.

But I found that the framework.jar and other jars are packed into the boot.oat.

While  when I build the Android 5.1 source with the branch  android-5.1.1_r1

source build/envsetup.sh

lunch  aosp_hammerhead-eng

make -j4

I can't get the the boot.art and boot.oat.

I have to use the dex2oat command to convert the jars into the boot.art and boot.oat.

But when I replace the factory release files, the Android can't start normally.

So how should I do ?

thanks alot.

[程超]

HI Qiang:

You mean that the device can work normally but you can't find the boot.art and boot.oat files?

If so the ART may work in interpreter-only mode caused by default settings.

You can try to change the flag:

Example usage (in product’s BoardConfig.mk):

WITH_DEXPREOPT := true

https://source.android.com/devices/tech/dalvik/configure.html

在 2015年5月10日星期日 UTC+8上午7:39:57，Qiang Wang写道：