What does it mean if two debuginfo packages create the same dwz build ID file?

[Richard W.M. Jones]

On Sat, Sep 14, 2013 at 02:21:45PM +0200, Jan Kratochvil wrote:
> On Sat, 14 Sep 2013 14:17:28 +0200, Richard W.M. Jones wrote:
> > What I didn't understand is what these /usr/lib/debug/.dwz/* files
> > are.  Are they related to some files that we're building and how?
> 
> It is the dwz (=debuginfo size optimizer) option -m:
> 
> -m FILE --multifile FILE
> 	[...] create ELF object FILE and put debugging information duplicated
> 	in more than one object there, [...]

So in summary, is this a bug in how I'm building debuginfo files
or a bug in the debuginfo generation or something else?

Rich.

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