On August 22, 2016 4:48:00 PM PDT, Linus Torvalds <torva...@linux-foundation.org> wrote: >On Mon, Aug 22, 2016 at 4:12 PM, H. Peter Anvin <h...@zytor.com> wrote: >> >> How about the gcc native __builtin_setjmp stuff which is supposedly >better? > >How new is it? The whole point was that we'd not have to worry and >wait for gcc features.. > >glibc doesn't use it, which worries me a bit. Has it ever gotten any >use/testing? > >But yes, the compiler could do better. If we can rely on it, and it >doesn't do stupid things (like have signal state etc crap - glibc >seems to just alias "setjmp" to "sigsetjmp" with a "didn't save >signals" flag) > > Linus
We can always fall back on the classic implementation for older gcc, just like we do for so many other features. -- Sent from my Android device with K-9 Mail. Please excuse brevity and formatting.
