Please don't drop x86 support from the Linux kernel ! You may not realize it, but there are plenty of people who care about x86 systems. I have a good old Pentium 4 based computer which is 32-bit, using it for some weird Linux experiments + retro gaming, and if I can't run new Linux kernels there - it would be SAD ср, 12 дек. 2018 г. в 21:15, Joseph Myers <joseph@xxxxxxxxxxxxxxxx>: > > On Wed, 12 Dec 2018, Arnd Bergmann wrote: > > > > MIPS had o32, n32, n64 since like forever. > > > > o32 and n32 are practically the same, the only difference on the > > syscall ABI that I can see are the actual syscall numbers, and > > the 'struct sigcontext' definition. > > And for syscalls that have 64-bit arguments, n32 generally passes those in > a single register (like n64), not pairs of registers (like o32). But, > yes, userspace structure layout for n32 is generally much closer to o32 > than to n64. > > -- > Joseph S. Myers > joseph@xxxxxxxxxxxxxxxx
