gdb/config/powerpc/tm-ppc-eabi.h

   1 /* Macro definitions for Power PC running embedded ABI.
   2    Copyright 1995, 1996, 1997 Free Software Foundation, Inc.
   3
   4    This file is part of GDB.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 59 Temple Place - Suite 330,
  19    Boston, MA 02111-1307, USA.  */
  20
  21 #ifndef TM_PPC_EABI_H
  22 #define TM_PPC_EABI_H
  23
  24 /* Use generic RS6000 definitions. */
  25 #include "rs6000/tm-rs6000.h"
  26 /* except we want to allow single stepping */
  27 #undef SOFTWARE_SINGLE_STEP_P
  28 #define SOFTWARE_SINGLE_STEP_P 0
  29
  30 #undef  DEFAULT_LR_SAVE
  31 #define DEFAULT_LR_SAVE 4       /* eabi saves LR at 4 off of SP */
  32
  33 #define GDB_TARGET_POWERPC
  34
  35 #undef PC_LOAD_SEGMENT
  36 #undef PROCESS_LINENUMBER_HOOK
  37
  38 #undef TEXT_SEGMENT_BASE
  39 #define TEXT_SEGMENT_BASE 1
  40
  41 /* Say that we're using ELF, not XCOFF.  */
  42 #define ELF_OBJECT_FORMAT 1
  43
  44 #define TARGET_BYTE_ORDER_SELECTABLE_P 1
  45
  46 /* return true if a given `pc' value is in `call dummy' function. */
  47 /* FIXME: This just checks for the end of the stack, which is broken
  48    for things like stepping through gcc nested function stubs.  */
  49 #undef PC_IN_CALL_DUMMY
  50
  51 /* generic dummy frame stuff */
  52
  53
  54
  55 /* target-specific dummy_frame stuff */
  56
  57 extern struct frame_info *rs6000_pop_frame PARAMS ((struct frame_info * frame));
  58
  59 extern CORE_ADDR ppc_push_return_address PARAMS ((CORE_ADDR, CORE_ADDR));
  60
  61 #undef PUSH_DUMMY_FRAME
  62 #define PUSH_DUMMY_FRAME             generic_push_dummy_frame ()
  63
  64 #define PUSH_RETURN_ADDRESS(PC, SP)      ppc_push_return_address (PC, SP)
  65
  66 /* override the standard get_saved_register function with
  67    one that takes account of generic CALL_DUMMY frames */
  68 #define GET_SAVED_REGISTER(raw_buffer, optimized, addrp, frame, regnum, lval) \
  69       generic_get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
  70
  71 #define USE_GENERIC_DUMMY_FRAMES 1
  72 #define CALL_DUMMY_BREAKPOINT_OFFSET (0)
  73 #define CALL_DUMMY_LOCATION          AT_ENTRY_POINT
  74 #define CALL_DUMMY_ADDRESS()         entry_point_address ()
  75 #undef CALL_DUMMY_START_OFFSET
  76 #define CALL_DUMMY_START_OFFSET      0
  77
  78
  79 #endif /* TM_PPC_EABI_H */