https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81490
--- Comment #26 from H. Peter Anvin <hpa at zytor dot com> --- @GPREL (altough it probably should be @GPOFF by analogy with @TPOFF?) gives the linker an option to distinguish the relocations which need to be adjusted at link/load time and the ones that don't. We have our own way of doing that for the Linux kernel, but I'm guessing H.J. wants a more general solution. @TPOFF would do the same thing for %fs, so @GPOFF would presumably be used for %gs (the other way around for i386...)
