Enable support for debugging pie programs. Code from Elena Zannoni's
<ezannoni at redhat dot com> pie branch in gdb cvs, less extraneous
parts and with some bug fixes. Debugging w/core files for pie

Enable support for debugging pie programs. Code from Elena Zannoni's
<ezannoni at redhat dot com> pie branch in gdb cvs, less extraneous
parts and with some bug fixes. Debugging w/core files for pie programs
isn't working yet since AUXV data isn't included in our core files at
the moment.

feedback and ok kettenis@

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Resolve conflicts for GDB 6.3. Add local patches.
ok deraadt@

GDB 6.1 (excluding .info files)

Merge to Cygnus 961112 + add some support (not ready) for shared libs