* arm-tdep.c: Include frame-unwind.h, frame-base.h, and
trad-frame.h.
(arm_get_cache): Delete macro.
(struct arm_prologue_cache): Update comments. Make saved_regs into
a trad_frame_saved_reg pointer. Remove unwound_pc; rename unwound_sp
to prev_sp.
(thumb_scan_prologue): Update for cache changes. Don't call
DEPRECATED_PC_IN_CALL_DUMMY.
(arm_scan_prologue): Update for cache changes. Take NEXT_FRAME
argument and use it in desperation search for our prologue. Do not
search past the specified PC.
(arm_make_prologue_cache): Simplify.
(arm_prologue_this_id, arm_prologue_prev_register)
(arm_prologue_unwind, arm_prologue_unwind_sniffer)
(arm_normal_frame_base, arm_normal_base, arm_make_sigtramp_cache)
(arm_sigtramp_this_id, arm_sigtramp_prev_register)
(arm_sigtramp_unwind, arm_sigtramp_unwind_sniffer)
(arm_unwind_dummy_id, arm_unwind_pc, arm_unwind_sp): New.
(arm_frame_chain_valid, arm_find_callers_reg)
(arm_frame_saved_pc, arm_read_fp, arm_frame_init_saved_regs)
(arm_pop_frame): Delete obsolete methods.
(arm_minimal_frame_chain, arm_minimal_frame_info): Delete.
(arm_gdbarch_init): Update for new frame methods. Register prologue
and sigtramp unwinders. Set the default frame base method.
* Makefile.in (arm-tdep.o): Update dependencies.
* varobj.c (find_frame_addr_in_frame_chain): Call
get_frame_base_address.
* std-regs.c (value_of_builtin_frame_fp_reg): Likewise.