SMDA incorrectly maps sections/segments from ELF files about smda

[williballenthin]

I'll wrap this fix into my PR for #22.

[williballenthin]

pending code, needs a bit more documentation, likely to be submitted tomorrow.

[williballenthin]

incidentally, should we be using both sections and segments, rather than just one or the other? maybe its good enough as is. certainly i'll open an issue if i find this breaking in the real world.

[danielplohmann]

Oh, that's a good catch!
I must have overlooked that when I previously added/fixed the simulated loading of the ELF files.
At least I didn't notice such significant cases of code truncation when running SMDA against my groundtruth in the evaluation. The results were within the expected margin that I didn't even consider that the loading was bugged that much.
I don't have an understanding of ELF files deep enough to propose a solid solution as my previous attempt at loading showed. :)
The first segments - then sections sounds really good though and appears to fix the problems you encountered!