perl script to find symbols for libgcc-compat

[Jack Howarth]

Hello,
    As an aid to those arches which haven't yet clearly determined if
they need to add a libgcc-compat for run-time resolution of the newly
.hidden libgcc symbols, I have created a perl script to gather these
symbols. Whether you can find all the symbols with it may be effected
by how many binaries/libraries you have available to search. However
it should at least clarify which arches need a libgcc-compat file added.
The perl script is based on the following assumptions

1) that only defined internal symbols in libgcc_s.so.1 are of interest
2) that "frame" related libgcc symbols can be ignored as they arrived
    after the .hidden change
3) that of the files to be searched for these symbols, those compiled 
    with c++ (as determined by libstdc++ linkage) can be ignored
4) likewise libgcj.so and libstdc++ themselves as c++ code can be
    ignored.

To run the program, place it in a directory with write access and
execute it. When finished you will have a list of candidate symbols
for libgcc-compat in final.list and a list of their occurrences in
the files searched in found.list. If anyone finds any flaws in this
search approach let me know and I'll see if I can fix it.
                                        Jack


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