On 17 December 2015 at 18:14, Adhemerval Zanella adhemerval.zanella@linaro.org wrote:

1. On which LLVM & clang version, linaro is actively working now ?

We currently work only on master with mainly focusing new enablement and bugfixes. We do not currently focus neither on maintaining or backports for older releases.

That's correct.

If you want to backport patches to previous releases, we'll have to do that upstream and wait for the next point-release to come out. Our job is to make sure the backports work well on ARM and AArch64, and we will run the same validation as we always do.

Linaro doesn't have infrastructure to do a private release. We can't test all back-ends, so we can't afford to support a side product.

2. Where can I find the latest "linaro-llvm" source code & binary? I could not find any official git repo for "linaro-llvm" at https://git.linaro.org/.

Because there is none at git.linaro.org. We do not track the devel internally, but rather use the already clang/llvm infra (maillist, repo, review tools, etc.)

Precisely. *Everything* we do is upstream.

If you need a special feature, please create a bug on LLVM's bugzilla and copy one of us. If the feature is private/sensitive, members can create bugs on our internal system instead.

However, since we cannot afford supporting a side product, *all* features will be ultimately implemented upstream.

3. Could you please explain Linaro LLVM working model? How similar/different it is when compared with Linaro-GCC engagement.

It is similar on the aspect we try to work as much as possible on master, but we not aim to provide a toolchain suite based on LLVM (like we do for GCC).

The main difference is how the LLVM community works, which is completely different than GCC's with respect to how patches are accepted, features implemented, releases validated and used.

That's the reason we can't afford to support Linaro-LLVM in the same way we do Linaro-GCC. The expectations and overall usage are completely different.

4. Certain links (e.g Roadmap) at https://wiki.linaro.org/WorkingGroups/ToolChain/LLVM ask for login credentials. Any comment on how to obtain the permission?

You will need to ask either to Ryan Arnold ryan.arnold@linaro.org or Renato Golin renato.golin@linaro.org. The 'Roadmap' is a link to the old issue tracking we used and I am not sure how it the procedure (if any) to give access to the one we are using now.

Our roadmap is not public. We can, however, divulge the upstream focus, as Adhemerval did below. We should, however, have a public-facing webpage with all possible upstream information, and you're not the first one to ask.

I'll start working on that first thing next year, following Linaro's guidelines, which I believe so far have been scarce on that subject.

But I can talk with current projects we are working at Linaro now, since they are pretty much public. Currently we are focusing on general ARM and AArch64 fixes and development, we are closing the sanitizer work (asan, msan, tsan, lsan, and dfsan), and on the new linker.

We're also working on the debugger (LLDB) for AArch64 and ARM, integrated assembler support, libc++ and compiler-rt, as well as most ARM and AArch64 validation for continuous integration and releases.

cheers, --renato