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Re: [Qemu-devel] [PATCH 0/2] vdso for x86_64-linux-user
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From: |
Richard Henderson |
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Subject: |
Re: [Qemu-devel] [PATCH 0/2] vdso for x86_64-linux-user |
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Date: |
Wed, 24 Jul 2013 06:34:54 -1000 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130625 Thunderbird/17.0.7 |
On 07/23/2013 11:15 AM, Peter Maydell wrote:
> On 23 July 2013 21:27, Richard Henderson <address@hidden> wrote:
>> This is a refresh of a patch I wrote in 2010, and have re-posted every
>> 6 months thereafter. To my knowledge, it has never been reviewed.
>>
>> It supplies a replacement for the required x86-64 vdso. Anyone trying
>> to emulate x86_64-linux on a host other than same will quickly run into
>> the lack of a gettimeofday syscall, which glibc assumes is always
>> provided by the vdso.
>
> Do we really need to mess with building an x86 shared object
> and pulling it in, rather than the kind of ad-hoc way we
> handle the ARM commpage?
Isn't the arm ad-hoc really the much larger and uglier hack?
r~