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/* Macro definitions for Power PC running embedded ABI.
   Copyright 1995, 1996, 1997 Free Software Foundation, Inc.
 
   This file is part of GDB.
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
 
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
 
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */
 
#ifndef TM_PPC_EABI_H
#define TM_PPC_EABI_H
 
/* Use generic RS6000 definitions. */
#include "rs6000/tm-rs6000.h"
/* except we want to allow single stepping */
#undef SOFTWARE_SINGLE_STEP_P
#define SOFTWARE_SINGLE_STEP_P 0
 
#undef	DEFAULT_LR_SAVE
#define	DEFAULT_LR_SAVE 4	/* eabi saves LR at 4 off of SP */
 
#define GDB_TARGET_POWERPC
 
#undef PC_LOAD_SEGMENT
#undef PROCESS_LINENUMBER_HOOK
 
#undef TEXT_SEGMENT_BASE
#define TEXT_SEGMENT_BASE 1
 
/* Say that we're using ELF, not XCOFF.  */
#define ELF_OBJECT_FORMAT 1
 
#define TARGET_BYTE_ORDER_SELECTABLE_P 1
 
/* return true if a given `pc' value is in `call dummy' function. */
/* FIXME: This just checks for the end of the stack, which is broken
   for things like stepping through gcc nested function stubs.  */
#undef PC_IN_CALL_DUMMY
 
/* generic dummy frame stuff */
 
 
 
/* target-specific dummy_frame stuff */
 
extern struct frame_info *rs6000_pop_frame PARAMS ((struct frame_info * frame));
 
extern CORE_ADDR ppc_push_return_address PARAMS ((CORE_ADDR, CORE_ADDR));
 
#undef PUSH_DUMMY_FRAME
#define PUSH_DUMMY_FRAME             generic_push_dummy_frame ()
 
#define PUSH_RETURN_ADDRESS(PC, SP)      ppc_push_return_address (PC, SP)
 
/* override the standard get_saved_register function with 
   one that takes account of generic CALL_DUMMY frames */
#define GET_SAVED_REGISTER(raw_buffer, optimized, addrp, frame, regnum, lval) \
      generic_get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
 
#define USE_GENERIC_DUMMY_FRAMES 1
#define CALL_DUMMY_BREAKPOINT_OFFSET (0)
#define CALL_DUMMY_LOCATION          AT_ENTRY_POINT
#define CALL_DUMMY_ADDRESS()         entry_point_address ()
#undef CALL_DUMMY_START_OFFSET
#define CALL_DUMMY_START_OFFSET      0
 
/* The value of symbols of type N_SO and N_FUN maybe null when 
   it shouldn't be. */
#define SOFUN_ADDRESS_MAYBE_MISSING
 
#endif /* TM_PPC_EABI_H */