(ia64_loc_t): New type. For UNW_LOCAL_ONLY, it's a single word, as before.
For the generic case, it's a 2-word structure. This provides enough
space to encode all necessary info both for 32-bit targets (which require
only 4-byte aligned addresses) and for targets which are limited to
accessing ucontext_t values via uc_access(3).
(ABI_MARKER_LINUX_SIGTRAMP): New macro.
(ABI_MARKER_HP_UX_SIGTRAMP): New macro.
(struct cursor): Consolidate bsp_loc, bspstore_loc, pfs_loc, rnat_loc, ip_loc,
pri_unat_loc, unat_loc, pr_loc, lc_loc, fpsr_loc, r4-r7_loc,
b1-b5_loc, f2-f7_loc, and fr_loc[] into loc[] array. Note that
there is now a separate PSP-loc (loc[IA64_REG_PSP]) in addition
to the cached psp value.
Rename sigcontext_loc to sigcontext_addr.
Remove is_signal_frame memeber and add abi_marker member instead.
Change type of rbs_area[].rnat_loc to ia64_loc_t.
(struct ia64_global_unwind_state): Remove preg_index[] array.
(Logical change 1.84)
(struct cursor): Add member "eh_valid_mask" to track which eh_args[] are valid.
Fix comment for rbs_curr.
(tdep_get_elf_image): New routine.
(Logical change 1.45)
