Replacing NDK's LLVM with the one built from source?

[Naville Zhang]

Hey:

I'm finally able to build a fairly recent android-llvm from source, what's the "canonical" method to use my local build?

toolchains//llvm/prebuilts/whatever/ contains a bunch other stuff not exists in my local LLVM like:

- ld(not lld)

- arm-linux-androideabi/

- aarch64-linux-android/

- sysroot/

So what's the canonical method to replace my llvm into NDK?

Do I just replace (or merge?) those folders:

- include

- bin

- lib

- lib64

- libexec

Or is there anything else needs to be done?

[Pirama Arumuga Nainar]

Replacing/dropping in the toolchain should be enough.  +Dan Albert is there an easier way to do this?

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[Dan Albert]

It isn't. The output of the tool chain build has never been structured quite right for NDK use. The NDK's build (see the readme.md in the NDK repo) needs to tweak a few things for it to be functional. There is not any easy way to do this, unless you count building the NDK (or repeating that process manually) as easy.

[Naville Zhang]

Hey Dan:

What I meant was reusing an existing NDK and patch my build in. Is this still requiring rebuilding the full NDK with sys lib?

If I need to replace the stuff manually, is there any hint I should start with?

[Dan Albert]

If I need to replace the stuff manually, is there any hint I should start with?

The only way is to read the NDK's build steps and reproduce them by hand. It won't be less work than just rebuilding. 

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