Particularly useful sources of information about libraries
include the following:
``The GCC HOWTO'' by Daniel Barlow.
In particular, this HOWTO discusses
compiler options for creating libraries and how to query
libraries.
It covers information not covered here, and vice versa.
This HOWTO is available through the Linux Documentation Project at
http://www.linuxdoc.org.
``Executable and Linkable Format (ELF)'' by
the Tool Interface Standards (TIS) committee
(this is actually one chapter of the Portable Formats Specification
Version 1.1 by the same committee).
This provides information about the ELF format
(it isn't specific to Linux or GNU gcc), and provides a great deal of
detail on the ELF format.
See
ftp://tsx-11.mit.edu/pub/linux/packages/GCC/ELF.doc.tar.gz
If you get the file from MIT, note that the format is unusual;
after gunzipping and untarring, you'll get an ``hps'' file; just
strip off the top and bottom lines and you'll get a printable
Postscript file.
