Re: [Xen-devel] [PATCH v4 8/9] symbols: Generate an xen-sym.map

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 24.08.16 at 04:22, <konrad.wilk@xxxxxxxxxx> wrote:
> You could construct _most_ of the names of the functions
> by doing 'nm --defined' but unfortunatly you do not get the
> <file> prefix that is added on in Xen . For example:
> 
> $ cat xen-syms.symbols |grep do_domain_pause
> 0xffff82d080104920 t domain.c#do_domain_pause
> $ nm --defined xen-syms|grep do_domain_pause
> ffff82d080104920 t do_domain_pause
> 
> This is normally not an issue, but if one is doing livepatching and
> wants during build-time verify that the symbols the livepatch payloads
> will patch do correspond to the one the hypervisor has built - this helps a 
> lot.
> 
> Note that during runtime one can do:
> [root@localhost xen]# cat /proc/xen/xensyms |grep do_domain_pause
> ffff82d080104920 t domain.c#do_domain_pause
> 
> But one may not want to build and verify a livepatch on the same host.
> 
> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>

Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>


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