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, Boston, MA 02111-1307, USA.  */
  19
  20 #ifndef TM_PPC_EABI_H
  21 #define TM_PPC_EABI_H
  22
  23 /* Use generic RS6000 definitions. */
  24 #include "rs6000/tm-rs6000.h"
  25 /* except we want to allow single stepping */
  26 #undef SOFTWARE_SINGLE_STEP_P
  27 #define SOFTWARE_SINGLE_STEP_P 0
  28
  29 #undef  DEFAULT_LR_SAVE
  30 #define DEFAULT_LR_SAVE 4       /* eabi saves LR at 4 off of SP */
  31
  32 #define GDB_TARGET_POWERPC
  33
  34 #undef PC_LOAD_SEGMENT
  35 #undef PROCESS_LINENUMBER_HOOK
  36
  37 #undef TEXT_SEGMENT_BASE
  38 #define TEXT_SEGMENT_BASE 1
  39
  40 /* Say that we're using ELF, not XCOFF.  */
  41 #define ELF_OBJECT_FORMAT 1
  42
  43 #define TARGET_BYTE_ORDER_SELECTABLE_P 1
  44
  45 /* return true if a given `pc' value is in `call dummy' function. */
  46 /* FIXME: This just checks for the end of the stack, which is broken
  47    for things like stepping through gcc nested function stubs.  */
  48 #undef PC_IN_CALL_DUMMY
  49 #define PC_IN_CALL_DUMMY(STOP_PC, STOP_SP, STOP_FRAME_ADDR)     \
  50         (STOP_SP < STOP_PC)
  51
  52 /* generic dummy frame stuff */
  53
  54
  55
  56 /* target-specific dummy_frame stuff */
  57
  58 extern struct frame_info *rs6000_pop_frame PARAMS ((struct frame_info *frame));
  59
  60 extern CORE_ADDR ppc_push_return_address PARAMS ((CORE_ADDR, CORE_ADDR));
  61 extern CORE_ADDR rs6000_push_arguments PARAMS ((int nargs,
  62                                               struct value **args,
  63                                               CORE_ADDR sp,
  64                                               unsigned char struct_return,
  65                                               CORE_ADDR struct_addr));
  66
  67 #undef PUSH_DUMMY_FRAME
  68 #define PUSH_DUMMY_FRAME             generic_push_dummy_frame ()
  69
  70 #define PUSH_RETURN_ADDRESS(PC, SP)      ppc_push_return_address (PC, SP)
  71
  72 /* override the standard get_saved_register function with
  73    one that takes account of generic CALL_DUMMY frames */
  74 #define GET_SAVED_REGISTER
  75
  76 #define USE_GENERIC_DUMMY_FRAMES
  77 #define CALL_DUMMY_BREAKPOINT_OFFSET (0)
  78 #define CALL_DUMMY_LOCATION          AT_ENTRY_POINT
  79 #define CALL_DUMMY_ADDRESS()         entry_point_address ()
  80 #undef CALL_DUMMY_START_OFFSET
  81 #define CALL_DUMMY_START_OFFSET      0
  82
  83
  84 #endif /* TM_PPC_EABI_H */