[llvm-dev] [cfe-dev] [8.0.0 Release] Need help with PR40761: Sanitizers broken on FreeBSD (original) (raw)

Kim Gräsman via llvm-dev llvm-dev at lists.llvm.org
Sun Feb 24 02:36:08 PST 2019

Hi again,

It took me a while to get the environment up and running. Turns out the sanitizer test suite is in pretty bad shape overall on FreeBSD.

The target reproducing the DEADLYSIGNAL loop is check-asan-dynamic.

I ran the bisect all the way from release/7.x to release/8.x --

warning: %shared_libasan substitution not set but dynamic ASan is available.

The DEADLYSIGNAL behavior is in fact introduced by https://reviews.llvm.org/D55596. But it looks like FreeBSD was broken even before this. I'll see if I can bisect where $somewhere is.

On Fri, Feb 22, 2019 at 1:39 PM Hans Wennborg <hans at chromium.org> wrote:

That's excellent! I think the check-sanitizer target should cover it. Thanks, Hans On Fri, Feb 22, 2019 at 1:34 PM Kim Gräsman <kim.grasman at gmail.com> wrote: > > Hi Hans, > > I have a freebsd machine and some time to spare this weekend. > > Could you offer the minimal git bisect command to repro? I'm hoping not to have to run the full check-clang test suite if there's a smaller subset of tests for ASAN. > > Thanks, > - Kim > > On Thu, Feb 21, 2019, 11:27 Hans Wennborg via cfe-dev <cfe-dev at lists.llvm.org> wrote: >> >> I think the release is looking pretty good, but there is one blocker >> that's worrying me: https://llvm.org/PR40761 >> >> From what I understand, ASan et al. used to work on FreeBSD but don't >> anymore, and there's nobody working on it. >> >> Is there someone who has access to a FreeBSD machine that could help >> investigate this? Just getting it bisected would be super helpful. >> >> Thanks, >> Hans _>> ________________________ >> cfe-dev mailing list >> cfe-dev at lists.llvm.org >> https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-dev

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