[diffoscope] Bug#838260: diffoscope: Reduce noise from offsets deltas in readelf(1) diffs

Jérémy Bobbio lunar at debian.org
Tue Sep 20 21:34:18 CEST 2016

Daniel Shahaf:
> Jérémy Bobbio wrote on Tue, Sep 20, 2016 at 13:18:49 +0000:
>> But why stop with images? In the precise case of the readelf output,
>> having line-oriented diff means we are carrying around a useless and
>> confusing information: the line numbers are not helpful in anyway to
>> locate and undrstand the differences.
>> But what if we could replace the line numbers by the instruction
>> addresses? Then the noise mentioned by Daniel disappears. Meanwhile, the
>> actual output will become even more relevant.
> In the example in the OP, the (source code) line numbers and instruction
> addresses are the same between both builds.  It is the .rodata addresses
> embeddded into the instructions that differ.

Thanks for pointing this out, I had actually misunderstood the problem
at hand. :)

Lunar                                .''`.
lunar at debian.org                 : :Ⓐ :  # apt-get install anarchism
                                    `. `'`

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