On Fri, Jul 11, 2025 at 12:32:57AM -0700, Christoph Hellwig wrote: > On Fri, Jul 11, 2025 at 09:30:31AM +0200, Greg Kroah-Hartman wrote: > > That's a crazy exception, and one that should probably be talked about > > with the FSF to determine exactly what the SPDX lines should be. > > It is called the libgcc exception and has been around forever for the > files in libgcc.a that a lot of these low-level kernel helpers were > copied from as the kernel doesn't link libgcc.
Almost. It is called the "GCC Runtime Library Exception", and it is about a lot more than libgcc, although that of course is one of the most important things it covers :-) Not linking to libgcc is a foolish thing btw. The main reason for it originally is to not have long divisions in the kernel (for x86 anyway!), but not using libgcc is neither sufficient nor necessary for that goal. Segher
