Re: [Qemu-devel] [PATCH 01/13] linux-user: Use memcpy in get_user/put

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Re: [Qemu-devel] [PATCH 01/13] linux-user: Use memcpy in get_user/put_us

From:	Richard Henderson
Subject:	Re: [Qemu-devel] [PATCH 01/13] linux-user: Use memcpy in get_user/put_user.
Date:	Mon, 17 Sep 2012 08:40:49 -0700
User-agent:	Mozilla/5.0 (X11; Linux x86_64; rv:15.0) Gecko/20120828 Thunderbird/15.0

On 09/17/2012 08:35 AM, Peter Maydell wrote:
> On 17 September 2012 16:28, Richard Henderson <address@hidden> wrote:
>> Not sure whether this is a gcc bug, but on sparc we wind up
>> trying to use std to an unaligned address.  The patch does
>> work around the problem.
> 
> Hmm. I guess this is guest and host having differing alignment
> requirements for 64 bit types? What case does it fail on?

I'll have to re-check.  I'm pretty sure this was sparc32 hosting arm-linux-user.


r~

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[Qemu-devel] [PATCH] fix gcc warnings when RESERVED_VA is 0, Mike Frysinger, 2012/09/15
- Re: [Qemu-devel] [PATCH] fix gcc warnings when RESERVED_VA is 0, Peter Maydell, 2012/09/16
  - Re: [Qemu-devel] [PATCH] fix gcc warnings when RESERVED_VA is 0, Blue Swirl, 2012/09/16
    - [Qemu-devel] [PATCH v2 00/13] Sparc TCG cleanup, Richard Henderson, 2012/09/17
    - [Qemu-devel] [PATCH 01/13] linux-user: Use memcpy in get_user/put_user., Richard Henderson, 2012/09/17
    - Re: [Qemu-devel] [PATCH 01/13] linux-user: Use memcpy in get_user/put_user., Peter Maydell, 2012/09/17
    - Re: [Qemu-devel] [PATCH 01/13] linux-user: Use memcpy in get_user/put_user., Richard Henderson <=
    - Re: [Qemu-devel] [PATCH 01/13] linux-user: Use memcpy in get_user/put_user., Peter Maydell, 2012/09/17
    - [Qemu-devel] [PATCH 02/13] tcg-sparc: Hack in qemu_ld/st64 for 32-bit., Richard Henderson, 2012/09/17
    - [Qemu-devel] [PATCH 06/13] tcg-sparc: Support GUEST_BASE., Richard Henderson, 2012/09/17
    - [Qemu-devel] [PATCH 03/13] tcg-sparc: Fix ADDX opcode., Richard Henderson, 2012/09/17
    - [Qemu-devel] [PATCH 04/13] tcg-sparc: Assume v9 cpu always, i.e. force v8plus in 32-bit mode., Richard Henderson, 2012/09/17
    - Re: [Qemu-devel] [PATCH 04/13] tcg-sparc: Assume v9 cpu always, i.e. force v8plus in 32-bit mode., Andreas Färber, 2012/09/17
    - Re: [Qemu-devel] [PATCH 04/13] tcg-sparc: Assume v9 cpu always, i.e. force v8plus in 32-bit mode., Richard Henderson, 2012/09/17
    - Re: [Qemu-devel] [PATCH 04/13] tcg-sparc: Assume v9 cpu always, i.e. force v8plus in 32-bit mode., Blue Swirl, 2012/09/17
    - Re: [Qemu-devel] [PATCH 04/13] tcg-sparc: Assume v9 cpu always, i.e. force v8plus in 32-bit mode., Richard Henderson, 2012/09/17
    - [Qemu-devel] [PATCH 09/13] tcg-sparc: Mask shift immediates to avoid illegal insns., Richard Henderson, 2012/09/17

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