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Re: [android-building] Re: Android with Hardware Float


Jean-Baptiste Queru May 1, 2012 8:01 AM
Posted in group: Android Building
We don't use GitHub for Android, and all contributions to Android must
go through Gerrit.

JBQ

On Tue, May 1, 2012 at 7:44 AM, Mathew Says IdareYou
<iamthe...@gmail.com> wrote:
> Hmm....I see.
> Thanks for the info.
> By the way do you manage any pull requests on Android @ GitHub?
>
> On May 1, 2012 9:58 PM, "Jean-Baptiste Queru" <j...@android.com> wrote:
>>
>> Technically, there are a few other devices that Google has had some
>> involvement in that weren't ever supported in AOSP (most notably,
>> "sholes", i.e. the original VZW Droid).
>>
>> We don't have full sources to any device, there are always some
>> hardware-specific or customer-specific binaries that we don't have
>> source access to.
>>
>> With the exception of dream/sapphire (which were ARMv6 but which we
>> considered as ARMv5TE), every device we've worked on over the last 3
>> years has been compatible with ARMv7-A, with at least VFPv3-D16.
>>
>> JBQ
>>
>> On Tue, May 1, 2012 at 6:44 AM, Mathew Says IdareYou
>> <iamthe...@gmail.com> wrote:
>> > I see, so the devices in the webpage are the ones that you own + have
>> > open
>> > sources?
>> >
>> > On May 1, 2012 8:18 PM, "Jean-Baptiste Queru" <j...@android.com> wrote:
>> >>
>> >> Well, it's hard to officially support something that you can't test.
>> >>
>> >> JBQ
>> >>
>> >> On Tue, May 1, 2012 at 5:11 AM, Mathew Says IdareYou
>> >> <iamthe...@gmail.com> wrote:
>> >> > That's what I thought.....you don't accept official support for other
>> >> > devices than the ones stated in the Android Source webpage, right?
>> >> >
>> >> > On Apr 30, 2012 11:44 PM, "Jean-Baptiste Queru" <j...@android.com>
>> >> > wrote:
>> >> >>
>> >> >> Yes, I expect that'd be possible. We've never had that combo in a
>> >> >> flagship device, so there's no direct AOSP support for it.
>> >> >>
>> >> >> JBQ
>> >> >>
>> >> >> On Sun, Apr 29, 2012 at 11:54 PM, Mathew Says IdareYou
>> >> >> <iamthe...@gmail.com> wrote:
>> >> >> > Also with custom source files from Cyanogenmod, even ARMv6-VFP is
>> >> >> > possible.
>> >> >> >
>> >> >> > On Apr 29, 2012 3:04 AM, "Jean-Baptiste Queru" <j...@android.com>
>> >> >> > wrote:
>> >> >> >>
>> >> >> >> Yes, the emulator supports ARMv7-A, VFPv3-D32 and NEON.
>> >> >> >>
>> >> >> >> Note: in the emulator, NEON code is sometimes slower than
>> >> >> >> non-NEON
>> >> >> >> code.
>> >> >> >>
>> >> >> >> JBQ
>> >> >> >>
>> >> >> >> On Sat, Apr 28, 2012 at 11:20 AM, Vik <vikra...@gmail.com>
>> >> >> >> wrote:
>> >> >> >> > Thanks JBQ. But will it work with the emulator?
>> >> >> >> > Also, isn't NEON the SIMD extension and vfp3 the floating point
>> >> >> >> > extension for v7?
>> >> >> >> >
>> >> >> >> > Thanks,
>> >> >> >> > V
>> >> >> >> >
>> >> >> >> > On Apr 27, 3:29 pm, Jean-Baptiste Queru <j...@android.com>
>> >> >> >> > wrote:
>> >> >> >> >> I meant, device/samsung/tuna/BoardConfig.mk
>> >> >> >> >>
>> >> >> >> >> JBQ
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >> On Fri, Apr 27, 2012 at 3:29 PM, Jean-Baptiste Queru
>> >> >> >> >> <j...@android.com>
>> >> >> >> >> wrote:
>> >> >> >> >> > See e.g. device/samsung/tuna:
>> >> >> >> >>
>> >> >> >> >> > TARGET_CPU_ABI := armeabi-v7a
>> >> >> >> >> > TARGET_CPU_ABI2 := armeabi
>> >> >> >> >> > TARGET_ARCH_VARIANT := armv7-a-neon
>> >> >> >> >>
>> >> >> >> >> > JBQ
>> >> >> >> >>
>> >> >> >> >> > On Fri, Apr 27, 2012 at 3:24 PM, Vik <vikrams...@gmail.com>
>> >> >> >> >> > wrote:
>> >> >> >> >> >> Hi,
>> >> >> >> >>
>> >> >> >> >> >> Has anyone built Android from source with hardware floating
>> >> >> >> >> >> point
>> >> >> >> >> >> support enabled?
>> >> >> >> >> >> If so then what about the kernel. I know that it is built
>> >> >> >> >> >> with
>> >> >> >> >> >> the
>> >> >> >> >> >> -msoft-float gcc flag and thats how it is supposed to be.
>> >> >> >> >> >> So I
>> >> >> >> >> >> am
>> >> >> >> >> >> a
>> >> >> >> >> >> little confused about how this would work.
>> >> >> >> >>
>> >> >> >> >> >> Any help from experts will be appreciated.
>> >> >> >> >>
>> >> >> >> >> >> Thanks,
>> >> >> >> >> >> V
>> >> >> >> >>
>> >> >> >> >> >> --
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>> >> >> >> >> >>http://groups.google.com/group/android-building?hl=en
>> >> >> >> >>
>> >> >> >> >> > --
>> >> >> >> >> > Jean-Baptiste M. "JBQ" Queru
>> >> >> >> >> > Software Engineer, Android Open-Source Project, Google.
>> >> >> >> >>
>> >> >> >> >> > Questions sent directly to me that have no reason for being
>> >> >> >> >> > private
>> >> >> >> >> > will likely get ignored or forwarded to a public forum with
>> >> >> >> >> > no
>> >> >> >> >> > further
>> >> >> >> >> > warning.
>> >> >> >> >>
>> >> >> >> >> --
>> >> >> >> >> Jean-Baptiste M. "JBQ" Queru
>> >> >> >> >> Software Engineer, Android Open-Source Project, Google.
>> >> >> >> >>
>> >> >> >> >> Questions sent directly to me that have no reason for being
>> >> >> >> >> private
>> >> >> >> >> will likely get ignored or forwarded to a public forum with no
>> >> >> >> >> further
>> >> >> >> >> warning.
>> >> >> >> >
>> >> >> >> > --
>> >> >> >> > You received this message because you are subscribed to the
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>> >> >> >> > Building" mailing list.
>> >> >> >> > To post to this group, send email to
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>> >> >> >> > For more options, visit this group at
>> >> >> >> > http://groups.google.com/group/android-building?hl=en
>> >> >> >>
>> >> >> >>
>> >> >> >>
>> >> >> >> --
>> >> >> >> Jean-Baptiste M. "JBQ" Queru
>> >> >> >> Software Engineer, Android Open-Source Project, Google.
>> >> >> >>
>> >> >> >> Questions sent directly to me that have no reason for being
>> >> >> >> private
>> >> >> >> will likely get ignored or forwarded to a public forum with no
>> >> >> >> further
>> >> >> >> warning.
>> >> >> >>
>> >> >> >> --
>> >> >> >> You received this message because you are subscribed to the
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>> >> >> >> Building" mailing list.
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>> >> >> >> http://groups.google.com/group/android-building?hl=en
>> >> >> >
>> >> >> > --
>> >> >> > You received this message because you are subscribed to the
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>> >> >>
>> >> >>
>> >> >>
>> >> >> --
>> >> >> Jean-Baptiste M. "JBQ" Queru
>> >> >> Software Engineer, Android Open-Source Project, Google.
>> >> >>
>> >> >> Questions sent directly to me that have no reason for being private
>> >> >> will likely get ignored or forwarded to a public forum with no
>> >> >> further
>> >> >> warning.
>> >> >>
>> >> >> --
>> >> >> You received this message because you are subscribed to the "Android
>> >> >> Building" mailing list.
>> >> >> To post to this group, send email to
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>> >> >> http://groups.google.com/group/android-building?hl=en
>> >> >
>> >> > --
>> >> > You received this message because you are subscribed to the "Android
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>> >>
>> >>
>> >>
>> >> --
>> >> Jean-Baptiste M. "JBQ" Queru
>> >> Software Engineer, Android Open-Source Project, Google.
>> >>
>> >> Questions sent directly to me that have no reason for being private
>> >> will likely get ignored or forwarded to a public forum with no further
>> >> warning.
>> >>
>> >> --
>> >> You received this message because you are subscribed to the "Android
>> >> Building" mailing list.
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>> >> http://groups.google.com/group/android-building?hl=en
>> >
>> > --
>> > You received this message because you are subscribed to the "Android
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>>
>>
>>
>> --
>> Jean-Baptiste M. "JBQ" Queru
>> Software Engineer, Android Open-Source Project, Google.
>>
>> Questions sent directly to me that have no reason for being private
>> will likely get ignored or forwarded to a public forum with no further
>> warning.
>>
>> --
>> You received this message because you are subscribed to the "Android
>> Building" mailing list.
>> To post to this group, send email to android-...@googlegroups.com
>> To unsubscribe from this group, send email to
>> android-buildi...@googlegroups.com
>> For more options, visit this group at
>> http://groups.google.com/group/android-building?hl=en
>
> --
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--
Jean-Baptiste M. "JBQ" Queru
Software Engineer, Android Open-Source Project, Google.

Questions sent directly to me that have no reason for being private
will likely get ignored or forwarded to a public forum with no further
warning.