[cfe-dev] Consult how to cross compile clang for arm on x86 linux ubuntu box

[Puyan Lotfi via cfe-dev]

Hi

You’ll want an arm64 Linux sysroot and an arm64 libcxx. I have a docker setup on docker hub for building a cross build toolchain for arm64 that you can look at: https://hub.docker.com/r/plotfi/llvm-pi

My quick steps here https://github.com/plotfi/llvm-pi/blob/master/Quick-Steps.md are for building the llvm-test-suite for arm64 but they can be repurposed for building clang for arm64 too. 

Hope this helps

-Puyan

Sent from my iPhone

> On Aug 13, 2020, at 4:33 AM, Dongdong Yang via cfe-dev <cfe-dev at lists.llvm.org> wrote:
> 
> 
> May I ask how to build clang for arm on x86 linux ubuntu box? And how to use  sysroot  to cross compile clang  libc++  for arm on x86 linux?   Appreciate any guidance. 
> 
> Thanks,
> Andy
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