IA-64 gp problem with PROVIDE and linker relaxation conflict

[Jim Wilson]

>Easiest would be to remove __gp from the default link scripts.

What about other symbols that come from PROVIDE?  If I replace __gp with
_etext in my testcase, then I can see that _etext is wrong by 48 bytes also.
However, fixing _etext this way would require either removing it from the
standard elf linker script, or else creating a new elf linker script for IA-64.

We either make PROVIDE work, or else we have to stop using it entirely.

For the 2.11 release however, just fixing __gp and leaving all other symbols
broken might be OK.  A wrong __gp is much more serious than a wrong _etext.

Jim