Re: [PATCH] rpm: update to 4.14.0

[Alexander Kanavin <alexander.kanavin@linux.intel.com>]

On 11/08/2017 05:31 PM, Mark Hatle wrote:

>> BTW. If you really don't want to use debugedit then you could use
>> something simple like a quick hack to list all sources I wrote some
>> time ago:
>> https://lists.fedorahosted.org/archives/list/elfutils-devel@lists.fedor
>> ahosted.org/message/VZP4G5N2ELYZEDAB3QYLXYHDGX4WMCUF/
>> (see the dwarfsrcfiles.c attachement)
> 
> This may very well do what we need.   Our output does not depend on RPM (or any
> specific package manager.)  We had simply been using the debugedit from RPM as
> it was the best tool for the job.  Now that GCC has the debug-prefix-map option,
> we no longer really need debugedit.

After poking some more at elfutils/binutils, I think that indeed the 
dwarfsrcfiles.c is what we need.

The standard utilities can dump the full debug table content on you, but 
they don't have a simple 'give me all sources' feature. And parsing that 
output is more fragile than I thought: there are 'compile units' and 
there are sources used to form them, and linking the two into a simple 
list of sources isn't easy.

Thanks a lot!

Alex