Re: [PATCH v5 3/3] arm64: Add seccomp support

From: Catalin Marinas
Date: Thu Jul 24 2014 - 11:16:53 EST

On Thu, Jul 24, 2014 at 04:00:03PM +0100, Andy Lutomirski wrote:
> On Jul 23, 2014 10:40 PM, "AKASHI Takahiro" <takahiro.akashi@xxxxxxxxxx> wrote:
> > when I implemented audit for arm64, the assumptions were
> > * If userspace is LE, then the kernel is also LE and if BE, then the kernel is BE.
> > * the syscall numbers and how arguments are encoded are the same btw BE and LE.
> > So syscall_get_arch() always return the same value.
> If arm64 ever adds support for mixed-endian userspace, this could
> become awkward. Hmm.

I really doubt we would ever support mixed endian user space. Too many
problems with translating syscalls, futexes (someone looked into this
and gave up eventually).

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