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Mathieu Maret
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153 followers
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What's new in Android N adb/shell?

adb push/pull/sync much faster. (AOSP N9 full /system sync down from 60s to 20s.) Now with better progress feedback showing percentage complete.

adb push/pull interpret command-line arguments more like scp.

adb shell: returns remote process’ exit status, distinguishes stdout/stderr, passes through stdin (so you can pipe into a remote process), passes window size and terminal type (and updates window size), >1024 shell command length. These features all require a new adbd, so even with a new adb they’ll only work when talking to new devices. (Most of this work was done by the Brillo team.)

Windows support greatly improved (99% of this work done by external contributor Spencer Low).

Increased stability for automated testing.

Helpful diagnostics for adb/fastboot Linux USB permissions problems.

Numerous command-line tool improvements/bug fixes. In particular, ls(1) is now the much more full-featured toybox ls. Unlike in M, sed(1) now works fine.

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Something I was particularly proud of being able to demo last week at Linaro Connect, was the Nexus7 running a mainline kernel, which has been part of our form-factor enablement effort.

So here is a little demo video of the current status:
https://drive.google.com/file/d/0B2zT38Egh-1TdFRybUZsSUY4bEU/view?usp=sharing

We've got Android Marshmallow running on a mainline kernel with ~50 patches on top of mainline:
https://git.linaro.org/people/john.stultz/flo.git/shortlog/refs/heads/flo-WIP

We've got accelerated graphics using freedreno and the latest mesa, with a DRM based hwcomposer.

This is really great, because we now have a very-close to mainline test bed on a actual consumer device. So we can make sure upstream doesn't introduce any regressions (just recently, two ABI breaks that affected android were recently caught) and allows us to make sure when we push Android functionality upstream, that any interface changes required by maintainers can be properly tested to make sure what lands upstream really works.

Again, I've not done much actual development to make this happen. I've just been doing integration work. So a huge thanks to +Rob Clark, +Bjorn Andersson, +Vinay Simha, +Archit Taneja, +Rob Herring, +Amit Pundir +Srinivas Kandagatla, and everyone who has been pushing related patches upstream at Qualcomm, Sony and Linaro's landing teams.

Its a huge credit to those folks that for the most part enabling functionality on this device has just been a matter of adding config options and devicetree entries. Of the ~50 patches, half are for the iommu and rpm-clk support for the device, ~10% is the display panel, and the rest are really config and device-tree changes, and a few small hacks to integrate into Android builds and getting the touch panel working.

If you want to try to reproduce this yourself, you can find instructions here (though no promises this won't set your device on fire):
https://wiki.linaro.org/LMG/Kernel/FormFactorEnablement


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Some AOSP bulding tips
[Old But Gold]

Our guy +Mathieu Maret shared a few months ago nice tips on how to set up an efficient ROM environment. Always good to know!

#AndroidDev #AndroidROM #DevTips

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Let's hack the genymotion kernel !
#androiddev Our kernel source code is now available on GitHub! → http://buff.ly/1V7r8s9
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The newly released Genymotion 2.5 is packed with new features for testing and CI.

Join our webinar on July 30th 9am PDT to discover how all these new Genymotion features can help you build better apps.

This event will happen on YouTube live:  http://www.youtube.com/watch?v=is3mE3u9asY

You will be able to ask questions before and during the webinar in the Youtube comments.

See you there!
Genymotion team

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Want to get some Android building trick ?

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Genymotion 2.5 is out! Enjoy continuous integration, #GmTool & #GradlePlugin. Check out the release note: http://buff.ly/1G7uR06 #AndroidDev #automation #scripting
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