Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Abstract the handling of dirty stacked registers in ia64_read_reg() and
ia64_write_reg() and call these whenever we read or write registers from
and to memory. This way we correctly read registers from addresses in
the register cache and thus fixes backtraces when the saved registers
(such as rp and ar.pfs) are in dirty stacked registers.

Various improvements for ia64:
o s/TARGET_XFER_DIRTY/NATIVE_XFER_DIRTY/g to be conformant,
o Handle TARGET_OBJECT_DIRTY for core files. Required on Linux,
o Replace ia64_fbsd_supply_fpregs() and ia64_fbsd_supply_gregs()
with supply_fpregset() and supply_gregset() resp. Needed to
support libthread_db.
o For target_read_partial(), pass the address of bspstore as the
annex instead of bspstore itself. This fixes crossbuilds. The
annex is a pointer, while bspstore is a ULONGEST.
o In ia64_frame_prev_register(), handle dirty stacked registers.

This commit was generated by cvs2svn to compensate for changes in r131082,
which included commits to RCS files with non-trunk default branches.

Add support for ia64. This code will be contributed to GDB as soon
as the legal prerequisites are met. To avoid future merge conflicts,
this is added to the vendor branch. The changes are seperately kept
in FREEBSD-diffs for easy reference.

Import of GDB version 6.1.1 (stripped; see FREEBSD-Xlist rev. 1.6).

Vendor import of GDB 5.2.
These bits are taken from the FSF gdb_5_2-branch anoncvs repo
on 27-June-2002 12:01:00 EDT.