On Thu, Oct 13, 2022 at 02:08:22PM -0700, Nick Desaulniers wrote: > On Wed, Oct 12, 2022 at 6:37 PM Jason A. Donenfeld <Jason@xxxxxxxxx> wrote: > > > > Hi, > > > > I've been working on a (still in development) patch that tries to > > apply a few compile-time constant folding tricks to a widely used > > library function, so I wanted to make sure my trickery worked across > > all supported gcc versions for as many call sites as possible. > > I'd imagine the kernel's inconsistent use of -ffreestanding per > architecture would be a blocker, if by library function you're > referring to a symbol that would typically be provided by the libc? > > Do you have more info about what the specific issue you've observed is? As mentioned, I don't really care to follow up with this. But you can if you want to waste your time. Download a toolchain. Run allmodconfig. Observe breakage. Shrug your shoulders and wish we would sunset ancient toolchains. Jason
