[libcxx-dev] How to include abi and unwind tests in libcxx test suite in standalone mode

Dominik Montada via libcxx-dev libcxx-dev at lists.llvm.org
Mon Aug 3 23:59:06 PDT 2020

Hi Louis,

sorry for digging up this old thread. I only just got around to start 
working on this again.

I wanted to set up the libc++abi tests as standalone and I'm getting the 
following error:

CMake Warning at CMakeLists.txt:480 (message):
   The libc++abi tests aren't valid when libc++abi is built standalone (i.e.
   outside of llvm/projects/libcxxabi ) and is built without a shared 
   Either build a shared library, build libc++abi at the same time as you
   build libc++, or do without testing.  No check target will be available!

I'm building in-tree but standalone. Is this intended even with your new 
patches or a bug?



Am 25.06.20 um 18:16 schrieb Louis Dionne:
> I just landed these patches:
>      commit c55051eea5d3cd57abfd9727f519b670517704d9
>      Author: Louis Dionne <ldionne at apple.com>
>      Date:   Thu Jun 25 12:02:43 2020 -0400
>          [libunwind] Allow specifying custom Lit config files
>          This is the libunwind counterpart of 0c66af970c80.
>      commit 33c9c10d183371edc95fa936705bef56f55ab611
>      Author: Louis Dionne <ldionne at apple.com>
>      Date:   Thu Jun 25 11:46:00 2020 -0400
>          [libc++abi] Allow specifying custom Lit config files
>          This is the libc++abi counterpart of 0c66af970c80.
> Louis
>> On Jun 25, 2020, at 11:28, Louis Dionne via libcxx-dev <libcxx-dev at lists.llvm.org> wrote:
>>> On Jun 25, 2020, at 08:14, Dominik Montada <dominik.montada at hightec-rt.com> wrote:
>>> Hi Louis,
>>> sorry for bothering you once more about the libcxx test suite! I was wondering whether you could help with some of my problems again.
>>> After the recent discussion on the mailing list and your diff, I was able to set up cross-compilation and remote-execution of the libcxx test suite, so thank you for that!
>> I'm glad to hear that!
>>> We have split up the build of the libraries into different stages, so libcxx, libcxxabi and libunwind are all built in standalone mode. If I understand correctly, libcxxabi and libunwind tests are not supported when using this. Is there a way to include those tests when running the libcxx test suite?
>>> If not, what is the recommended way to build and test those libraries when doing cross-compilation?
>> Yes, they are supported. It's just that I haven't implemented the ability to use a 100% custom site config file for libcxxabi and libunwind, but it should work just the same. I'll try doing that today -- it should be the same dance as what I did for libcxx.
>> Louis
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