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Re: [Xen-devel] REST MAINTAINERS feedback requested Was:Re: [PATCH v5 01/28] HYPERCALL_version_op. New hypercall mirroring XENVER_ but sane.



>>> On 11.04.16 at 18:53, <konrad.wilk@xxxxxxxxxx> wrote:
> On Mon, Apr 11, 2016 at 05:25:04PM +0100, Ian Jackson wrote:
>> Jan Beulich writes ("Re: REST MAINTAINERS feedback requested Was:Re: 
>> Certainly if
>> we are going to permit these strings etc. to be bigger than fits in
>> the old hypercall, the old hypercall needs to be deprecated on the
>> grounds that it can provide incomplete or inaccurate information.
> 
> The build-id in Config.mk is set to use sha1. Which produces 20 bytes.
> You (or anybody else) can modify Config.mk to modify --build-id
> as per man ld (there is an uuid or md5 or):
> 
>  "0xhexstring" to use a chosen bit string specified as an even number of 
> hexadecimal
>   digits ("-" and ":" characters between digit pairs are ignored)."
> 
> which does not impose any limits.

This has nothing to do with the discussion here, imo. The new
build-id sub-op can, as said numerous times before, easily have
a buffer length communicated.

Jan


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