From: Richard Henderson <rth@twiddle.net>
To: qemu-devel@nongnu.org
Cc: Riku Voipio <riku.voipio@iki.fi>
Subject: Re: [Qemu-devel] [PATCH 4/6] linux-user: Rewrite __get_user/__put_user with __builtin_choose_expr
Date: Thu, 11 Oct 2012 12:52:27 -0700 [thread overview]
Message-ID: <5077237B.40502@twiddle.net> (raw)
In-Reply-To: <1349983336-9974-5-git-send-email-rth@twiddle.net>
On 10/11/2012 12:22 PM, Richard Henderson wrote:
> The previous formuation with multiple assignments to __typeof(*hptr) falls
> down when hptr is qualified const. E.g. with const struct S *p, p->f is
> also qualified const.
>
> With this formulation, there's no assignment to any local variable.
>
> Signed-off-by: Richard Henderson <rth@twiddle.net>
Scratch that... I lost the unaligned access capability.
I'll have to re-work the patch.
r~
next prev parent reply other threads:[~2012-10-11 19:52 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-11 19:22 [Qemu-devel] [PATCH v3 0/6] linux-user improvements Richard Henderson
2012-10-11 19:22 ` [Qemu-devel] [PATCH 1/6] linux-user: Perform more checks on iovec lists Richard Henderson
2012-10-11 19:22 ` [Qemu-devel] [PATCH 2/6] linux-user: Implement gethostname Richard Henderson
2012-10-11 19:43 ` Peter Maydell
2012-10-11 19:22 ` [Qemu-devel] [PATCH 3/6] alpha-linux-user: Fix sigaltstack structure definition Richard Henderson
2012-10-11 19:22 ` [Qemu-devel] [PATCH 4/6] linux-user: Rewrite __get_user/__put_user with __builtin_choose_expr Richard Henderson
2012-10-11 19:52 ` Richard Henderson [this message]
2012-10-12 11:10 ` Riku Voipio
2012-10-12 14:43 ` Richard Henderson
2012-10-11 19:22 ` [Qemu-devel] [PATCH 5/6] alpha-linux-user: Fix sigaction Richard Henderson
2012-10-11 19:22 ` [Qemu-devel] [PATCH 6/6] linux-user: Fix siginfo handling Richard Henderson
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