Re: [Xen-devel] Xen 4.2 / Xen 4.3 ABI compatibility

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Sat, 2013-05-18 at 11:31 +0100, Alex Bligh wrote:
> 
> --On 18 May 2013 12:15:58 +0200 Roger Pau Monné <roger.pau@xxxxxxxxxx> 
> wrote:
> 
> >> If the answer to this is 'yes', I think I may have some bugs to report.
> >
> > If you are asking about libxl, it is not ABI compatible, only API. You
> > should recompile your programs when updating.
> 
> libxl and the other libraries. I will recompile and see what happens :-)

Where the ABI has changed between 4.2 and 4.3 the SONAMEs should also
have been bumped. The last missing bumps should have been caught by:
        commit dac66a5b2db37a40c7eb4b9d25ee8095106906c0
        Author: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
        Date:   Tue May 7 11:39:10 2013 +0100
        
            tools: Bump some library sonames
        
Please let us know if we missed one.

We don't (usually) bump the SONAME more than once during a dev cycle so
if the ABI changed more than one things built against intermediate
versions may not work and would need rebuilding.

If you haven't recompiled then you may also be picking up the 4.2
SONAMEs (i.e. the 4.2 versions of the libraries), which wouldn't be
expected to work with 4.3.

Ian.


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