[gentoo-embedded] Android support

[gentoo-embedded] Android support

[John Lowry]

Has there been any discussion of coming up with cross compiler support 
for the Android platform? I know the Android SDK is in portage, I 
talking about building native program against the C library the Android 
platfor, Bionic. People with either rooted G1s, dev phones, or some 
other platform it would be nice to have other programs on there. Here is 
some CPU info:

$ cat /proc/cpuinfo
Processor       : ARMv6-compatible processor rev 2 (v6l)
BogoMIPS: 245.36
Features: swp half thumb fastmult edsp java
CPU implementer : 0x41
CPU architecture: 6TEJ
CPU part: 0xb36
CPU revision    : 2
Cache type      : write-back
Cache clean     : cp15 c7 ops
Cache lockdown  : format C
Cache format    : Harvard
I size  : 32768
I assoc : 4
I line length   : 32
I sets  : 256
D size  : 32768
D assoc : 4
D line length   : 32
D sets  : 256

Hardware: trout
Revision: 0080
Serial  : 0000000000000000

Re: [gentoo-embedded] Android support

[Ned Ludd]

On Mon, 2009-05-04 at 11:21 -0700, John Lowry wrote:
> Has there been any discussion of coming up with cross compiler support 
> for the Android platform?

Whats missing? 
armv6j as a cross compiler works fine. You mean the java bits?

Re: [gentoo-embedded] Android support

[Maksim 'max_posedon' Melnikau]

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On Monday 04 May 2009 21:21:07 John Lowry wrote:
> Has there been any discussion of coming up with cross compiler support
> for the Android platform? I know the Android SDK is in portage, I
> talking about building native program against the C library the Android
> platfor, Bionic. People with either rooted G1s, dev phones, or some
> other platform it would be nice to have other programs on there. Here is
> some CPU info:
>
> $ cat /proc/cpuinfo
> Processor       : ARMv6-compatible processor rev 2 (v6l)
> BogoMIPS: 245.36
> Features: swp half thumb fastmult edsp java
> CPU implementer : 0x41
> CPU architecture: 6TEJ
> CPU part: 0xb36
> CPU revision    : 2
> Cache type      : write-back
> Cache clean     : cp15 c7 ops
> Cache lockdown  : format C
> Cache format    : Harvard
> I size  : 32768
> I assoc : 4
> I line length   : 32
> I sets  : 256
> D size  : 32768
> D assoc : 4
> D line length   : 32
> D sets  : 256
>
> Hardware: trout
> Revision: 0080
> Serial  : 0000000000000000
Main problem with android, that it is quite big with VERY strange build steps,
if you want begin ebuild-ing them - very nice, at least Gentoo-Openmoko people 
will test them.

We [Gentoo-Openmoko] also thinked about porting android to Gentoo, but it 
postponed now because of others more important stuff. FSO/SHR is better than 
android anyway :), and they should be ported first.

Android basically is just kernel+busybox, if I'm not mistaken they have even 
separate libc (neither glibc, neither uclibc). So porting work isn't very 
simple.


P.S. Neo Freerunner (gta02) where android runs too:
root@om-gta02 ~ $ cat /proc/cpuinfo
Processor       : ARM920T rev 0 (v4l)
BogoMIPS        : 199.47
Features        : swp half thumb
CPU implementer : 0x41
CPU architecture: 4T
CPU variant     : 0x1
CPU part        : 0x920
CPU revision    : 0
Cache type      : write-back
Cache clean     : cp15 c7 ops
Cache lockdown  : format A
Cache format    : Harvard
I size          : 16384
I assoc         : 64
I line length   : 32
I sets          : 8
D size          : 16384
D assoc         : 64
D line length   : 32
D sets          : 8

Hardware        : GTA02
Revision        : 0360
Serial          : 0000000000000000


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Re: [gentoo-embedded] Android support

[John Lowry]

I am not sure, perhaps I framed my question improperly. How about has 
anyone built a cross compiler for the android that uses Bionic as the 
libc implementation? I am trying to keep the native Android system with 
binaries built from portage.

Ned Ludd wrote:
> On Mon, 2009-05-04 at 11:21 -0700, John Lowry wrote:
>   
>> Has there been any discussion of coming up with cross compiler support 
>> for the Android platform?
>>     
>
> Whats missing? 
> armv6j as a cross compiler works fine. You mean the java bits?
>
>
>
>
>
>   

Re: [gentoo-embedded] Android support

[Christoph Spielmann]

On 04.05.2009 20:41, John Lowry wrote:
> I am not sure, perhaps I framed my question improperly. How about has 
> anyone built a cross compiler for the android that uses Bionic as the 
> libc implementation? I am trying to keep the native Android system 
> with binaries built from portage.
You won't be able to create a cross-compile environment using crossdev 
because crossdev doesn't support bionic as  c library. (at least as far 
as i know?) Maybe somewhere is a ready to use cross-compile environment 
that you can use to play around?

Another question: Why do you insist on using bionic? Why not use one of 
the other libc-implementations that are known to work? Just as solar 
said arm6j should be perfectly fine.
>
> Ned Ludd wrote:
>> On Mon, 2009-05-04 at 11:21 -0700, John Lowry wrote:
>>> Has there been any discussion of coming up with cross compiler 
>>> support for the Android platform?
>>
>> Whats missing? armv6j as a cross compiler works fine. You mean the 
>> java bits?
>>
>>
>>
>>
>>
>
>
>

Re: [gentoo-embedded] Android support

[Peter Stuge]

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Maksim 'max_posedon' Melnikau wrote:
> if I'm not mistaken they have even separate libc (neither glibc,
> neither uclibc).

Correct. I had a quick look and the libc has a bunch of NetBSD
strings in it.


//Peter

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