On Wed, Nov 20, 2019 at 11:29 AM Hendrik Leppkes <[email protected]> wrote:
> On Wed, Nov 20, 2019 at 5:00 PM Timo Rothenpieler <[email protected]> > wrote: > > > > On 20.11.2019 13:51, Rick Kern wrote: > > > The current version of clang enables stack checking by default, causing > > > a crash when binaries are run. > > > > Why does it trigger a crash? Doesn't it indicate something is wrong that > > should be fixed instead? > Here's the discussion about the compiler bug - https://forums.developer.apple.com/thread/121887 Maybe this is too heavy-handed. Disabling avx, avx2, and avx512 fixes the issue too, so maybe this is the better than disabling a security feature. Detecting the compiler bug in configure and disabling only when present would have less impact on performance. I'm torn between automatically disabling it when the bug is detected, or bailing from configure with an error message to disable it. What's the best option? > > Its a bug in the Apple compiler (not in Clang in general afaik) that > causes stack alignment to be thrown off. > > The commit should probably indicate that this is a Apple compiler bug. > > - Hendrik > _______________________________________________ > ffmpeg-devel mailing list > [email protected] > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". _______________________________________________ ffmpeg-devel mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
