Documentation about debugging formats

[Robert Kiesling]

How does GCC select which debugging format to use?  Pointers to some
info documents would be useful, or some specification of which format
gets used - is that system dependent, or simply which format provides
the most information?  There don't seem to be any actual info
documents about the formats, only info files about the bfd interfaces.
If there aren't any actual info documents about these formats, some
pointers to the relevant source code would be very helpful.

Thanks in advance,

Robert

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