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Re: PATCH: Add x32 arch_prctl support
> The goes back to user uint32_t vs kernel uint64_t:
> The difference is movq vs movl. There is no need for movq
> since x32 will only pass unsigned 32-bit value to kernel.
I see. That one byte in a rarely-used call is not reason enough to
make the code uglier.
> Thanks. But since x32 kernel takes PTRACE_ARCH_PRCTL, I
> still need x32 ptrace to either handle it properly or set EINVAL
> when PTRACE_ARCH_PRCTL is passed.
It was my proposal that the kernel be changed to refuse PTRACE_ARCH_PRCTL
in a ptrace call made from an x32 task.