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RE: [GCC Steering Committee] Android sub-port reviewer

From: "Fu, Chao-Ying" <fu at mips dot com>
To: Andrew Pinski <pinskia at gmail dot com>
Cc: Richard Sandiford <rdsandiford at googlemail dot com>, Maxim Kuvyrkov <maxim at codesourcery dot com>, Richard Earnshaw <rearnsha at arm dot com>, Jan Hubicka <hubicka at ucw dot cz>, "gcc at gcc dot gnu dot org" <gcc at gcc dot gnu dot org>
Date: Tue, 3 Apr 2012 17:45:54 +0000
Subject: RE: [GCC Steering Committee] Android sub-port reviewer
References: <BCDE03C0-61B1-4C07-9E09-35A3E5C4BA38@codesourcery.com> <16285357-1E07-4D60-BD8D-2B2FE796609B@codesourcery.com> <87sjgmm0rt.fsf@talisman.home> <7C6479EB2BF52547AC332FD6034646DA01448C282D@exchdb03.mips.com> <CA+=Sn1mYyCOusJWY9vswVA9k6Rm-goXPDxBvQYpXsh8zgJ30ng@mail.gmail.com>

Andrew Pinski wrote:

> On Mon, Apr 2, 2012 at 1:55 PM, Fu, Chao-Ying <fu@mips.com> wrote:
> > ?It basically sets the MIPS target to little-endian MIPS32 
> for mips-linux-android.
> 
> That seems broken because mips-*-* is big-endian and mipsel-*-* is
> little-endian.  Is any way of fixing that before even trying to
> submitting the patch?  Because it will be the only port for mips which
> is the opposite endian which makes it out of place.

  We fixed the MIPS target to little endian, because there is only one
MIPS ABI in official NDK for Android: little-endian MIPS32 release 1.
NDK scripts are tested with mips-linux-android.  (We didn't test mipsel-linux-android targets.)
Note that Android software components (ex: google v8, webkit jsc) may be coded for
little-endian targets only.

  If GCC doesn't set the MIPS Android targets to little endian, it will be easy to
add a small patch into googlesource in the future.  Ex: Add -EL options for compilation/linking.
Thanks!

Regards,
Chao-ying

Follow-Ups:
- Re: [GCC Steering Committee] Android sub-port reviewer
  - From: Andrew Pinski

References:
- Re: [GCC Steering Committee] Android sub-port reviewer
  - From: Maxim Kuvyrkov
- Re: [GCC Steering Committee] Android sub-port reviewer
  - From: Richard Sandiford
- RE: [GCC Steering Committee] Android sub-port reviewer
  - From: Fu, Chao-Ying
- Re: [GCC Steering Committee] Android sub-port reviewer
  - From: Andrew Pinski

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