[cfe-dev] C++ Module failures on ARM

[Richard Smith]

These all look like something is going wrong with timestamps in your
filesystem.
On 16 Apr 2015 12:57 pm, "Renato Golin" <renato.golin at linaro.org> wrote:

> Folks,
>
> I have been trying to get this buildbot green for a while...
>
> http://lab.llvm.org:8011/builders/clang-cmake-armv7-a15/
>
> but for some reason, those four tests fail:
>
> FAIL: Clang::fmodules-validate-once-per-build-session.c
> FAIL: Clang::prune.m
> FAIL: Clang::validate-system-headers.m
> FAIL: LLVM::archive-update.test
>
> I have no idea why, since the same build on other ARM boards work
> perfectly.
>
> I have completely removed the buildbot directory, re-created,
> restarted, and still the same four errors occur. I have updated the
> system, removed spurious packages, moved the version of all relevant
> tools (compiler, cmake, ninja, etc) to the other bots, for instance:
>
> http://lab.llvm.org:8011/builders/clang-cmake-thumbv7-a15
>
> which is green ever since. I also run NEON and non-NEON ARMv7 tests on
> my test box and all tests pass.
>
> It seems that the problem is with versions of the modules that get
> included, for example:
>
>
> http://lab.llvm.org:8011/builders/clang-cmake-armv7-a15/builds/4811/steps/ninja%20check%201/logs/FAIL%3A%20LLVM%3A%3Aarchive-update.test
>
> archive-update.test:34:8: error: expected string not found in input
> NEWER: newer
>        ^
> <stdin>:1:1: note: scanning from here
> older
> ^
>
> Does anyone have any idea on how to fix this issue? I don't think it's
> in Clang itself, but I can't think of anything else to do in the
> machine... My last resort will be to kill that machine and re-install
> from scratch, but that would be to admit failure. :)
>
> cheers,
> --renato
>
> PS: Those problems occurred after a power cut, which left all my bots
> in a terrible state. All others recuperated well, not this...
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