[rfa] cris-tdep.c: Frame unwind and dummy call fixes

[Orjan Friberg]

This is a rather monstrous patch, but the CRIS port hadn't been updated in quite 
a while, and a lot of the stuff that had changed since the last update was 
interconnected.  In addition to this, I got rid of support for a now obsolete 
ABI (instead of updating it) which further increases the size of the patch.

Andrew, it was a while since I contributed to the tree, and my public key has 
most likely changed since then.  Should I send you a new identity.pub?

I realize this patch comes very close to branching for 6.1, so if it fits badly 
with the 6.1 schedule for whatever reason then I'm prepared to wait until later.


2004-02-26  Orjan Friberg  <orjanf@axis.com>

        * cris-tdep.c (frame_unwind.h, frame-base.h, trad-frame.h)
        (dwarf2-frame.h): Include.
        (enum cris_regnums): New enum CRIS_FP_REGNUM.
        Remove static variables related to ABI setting.
        (struct gdbarch_tdep): Remove cris_abi member.
        (struct frame_extra_info): Remove.
        (cris_unwind_cache, stack_item): New structs.
        (cris_frame_unwind, cris_frame_base): New variables.
        (push_stack_item, pop_stack_item)
        (cris_frame_unwind_cache, cris_frame_this_id)
        (cris_frame_prev_register, cris_unwind_dummy_id, cris_frame_align)
        (cris_push_dummy_code, cris_push_dummy_call, cris_frame_sniffer)
        (cris_frame_base_address, cris_scan_prologue, cris_unwind_pc)
        (cris_unwind_sp, cris_store_return_value, cris_extract_return_value)
        (cris_reg_struct_has_addr): New functions.
        (cris_examine, cris_frame_init_saved_regs, cris_frame_chain)
        (cris_frame_saved_pc, cris_saved_pc_after_call,
        (cris_store_struct_return, cris_frameless_function_invocation)
        (cris_pop_frame, cris_skip_prologue_main)
        (cris_abi_original_store_return_value)
        (cris_abi_v2_store_return_value)
        (cris_abi_original_extract_return_value)
        (cris_abi_v2_extract_return_value)
        (cris_abi_original_reg_struct_has_addr)
        (cris_abi_v2_reg_struct_has_addr)
        (cris_abi_original_push_arguments, cris_abi_v2_push_arguments)
        (cris_push_return_address, cris_abi_update): Remove.
        (_initialize_cris_tdep): Remove ABI command.
        (cris_dump_tdep): Ditto.
        (cris_gdbarch_init): Remove ABI command.
        Set store_return_value, extract_return_value, push_dummy_code,
        push_dummy_call, frame_align, unwind_pc, unwind_sp, unwind_dummy_id,
        frame_unwind_append_sniffer, frame_base_set_default.
        Clear deprecated init_frame_pc, push_arguments, store_return_value,
        extract_return_value, fp_regnum, pc_in_call_dummy, call_dummy_words,
        sizeof_call_dummy_words, get_saved_register, push_return_address,
        pop_frame, store_struct_return, frame_init_saved_regs,
        init_extra_frame_info, frameless_function_invocation, frame_chain,
        frame_saved_pc, saved_pc_after_call, save_dummy_frame_tos,
        dummy_write_sp.

-- 
Orjan Friberg
Axis Communications

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