Re: [Qemu-devel] [PATCH 0/2] vdso for x86_64-linux-user

[Peter Maydell]

On 24 July 2013 17:34, Richard Henderson <address@hidden> wrote:
> 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?

Maaaybe, but it doesn't require a cross-compiler :-)

-- PMM