Re: [PATCH] x86: Start removing X86_X32_ABI

From: Sebastian Andrzej Siewior

Date: Tue May 26 2026 - 06:41:05 EST


On 2026-05-23 14:43:52 [-0700], H. Peter Anvin wrote:
> However, we can not recycle the syscall numbers. The x32 flag in the
> syscall number was advisory originally; it was introduced late in the
> game to work around a design bug in the input subsystem (*).

If x32 is removed/ not supported why can't the 32/64 bit ABI use syscall
numbers 512+? It is an ELF32 with EM_X86_64 which should be rejected.
Shouldn't this free the space because there are no users anymore?

> -hpa

Sebastian