RE: [gentoo-soc] Weekly Report: Portage Powered Android

[Pengcheng Xu]

Nice progress.  Looking forward to your elaboration on the LLVM/Clang toolchain for aarch64 host!

Regards,
-- 
Pengcheng Xu
https://jsteward.moe

> -----Original Message-----
> From: Gunwant Jain <therealgunwant@×××××.com>
> Sent: Wednesday, July 8, 2020 7:39 PM
> To: gentoo-soc@l.g.o
> Cc: heroxbd@g.o
> Subject: [gentoo-soc] Weekly Report: Portage Powered Android
>
> Hey Everyone !
>
> I was about to give a coherent report for what I have been doing for 2
> weeks next week, but my mentor suggested to explain my findings briefly.
>
> I found out that AOSP has actually been phasing out of using GCC in
> favour to Clang/LLVM based toolchains. And so, from the last time I
> gave in my weekly report, I have been checking up on llvm_android [1],
> the source of the toolchain which AOSP uses to build itself.
>
> I built the toolchain for x86 host using the original scripts AOSP
> provides and found out that they in terms of Bionic (Android's libc),
> they only copy Bionic's headers, compiles Clang for different targets
> using a prebuilt toolchain bundled with the entire package.
>
> Later, when we build Android, the prebuilt toolchain compiles Bionic and
> uses it as intermediatories to compile the other bulk of Android
> (frameworks, etc.).
>
> My main objective I think would be to introduce a aarch64 host config
> for llvm_android, and integrate the toolchain in the AOSP build process.
> Take this with a grain of salt, as I believe I should put more research
> into this first, which is why I was taking another week.
>
> I would probably write a detailed blog documenting AOSP's build process
> by the end of this working week, covering everything we need to proceed.
>
>
> Regards,
> Gunwant
>
> [1] https://android.googlesource.com/toolchain/llvm_android/