gdb/config/mn10200/tm-mn10200.h

   1 /* Parameters for execution on a Matsushita mn10200 processor.
   2    Copyright 1997 Free Software Foundation, Inc.
   3
   4    Contributed by Geoffrey Noer <noer@cygnus.com>
   5
   6 This file is part of GDB.
   7
   8 This program is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 2 of the License, or
  11 (at your option) any later version.
  12
  13 This program is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with this program; if not, write to the Free Software
  20 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  21
  22 #define TARGET_BYTE_ORDER LITTLE_ENDIAN
  23
  24 /* 24 bit registers but we'll pretend that they are 32 bits */
  25 #define REGISTER_SIZE 4
  26
  27 #define MAX_REGISTER_RAW_SIZE REGISTER_SIZE
  28 #define NUM_REGS 11
  29
  30 #define REGISTER_BYTES (NUM_REGS * REGISTER_SIZE)
  31
  32 #define REGISTER_NAMES \
  33 { "d0", "d1", "d2", "d3", "a0", "a1", "a2", "sp", \
  34   "pc", "mdr", "psw"}
  35
  36 #define FP_REGNUM 6
  37 #define SP_REGNUM 7
  38 #define PC_REGNUM 8
  39 #define MDR_REGNUM 9
  40 #define PSW_REGNUM 10
  41
  42 #define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int
  43
  44 #define REGISTER_BYTE(REG) ((REG) * REGISTER_SIZE)
  45 #define REGISTER_VIRTUAL_SIZE(REG) REGISTER_SIZE
  46 #define REGISTER_RAW_SIZE(REG) REGISTER_SIZE
  47
  48 #define MAX_REGISTER_VIRTUAL_SIZE REGISTER_SIZE
  49
  50 #define BREAKPOINT {0xff}
  51
  52 #define FUNCTION_START_OFFSET 0
  53
  54 #define DECR_PC_AFTER_BREAK 0
  55
  56 #define INNER_THAN <
  57
  58 #define SAVED_PC_AFTER_CALL(frame) \
  59   read_memory_integer (read_register (SP_REGNUM), REGISTER_SIZE)
  60
  61 #ifdef __STDC__
  62 struct frame_info;
  63 struct frame_saved_regs;
  64 struct type;
  65 struct value;
  66 #endif
  67
  68 #define EXTRA_FRAME_INFO struct frame_saved_regs fsr;
  69
  70 extern void mn10200_init_extra_frame_info PARAMS ((struct frame_info *fi));
  71 #define INIT_EXTRA_FRAME_INFO(fromleaf, fi) mn10200_init_extra_frame_info (fi)
  72 #define INIT_FRAME_PC           /* Not necessary */
  73
  74 extern void mn10200_frame_find_saved_regs PARAMS ((struct frame_info *fi, struct frame_saved_regs *regaddr));
  75 #define FRAME_FIND_SAVED_REGS(fi, regaddr) regaddr = fi->fsr
  76
  77 extern CORE_ADDR mn10200_frame_chain PARAMS ((struct frame_info *fi));
  78 #define FRAME_CHAIN(fi) mn10200_frame_chain (fi)
  79 #define FRAME_CHAIN_VALID(FP, FI)       generic_frame_chain_valid (FP, FI)
  80
  81 extern CORE_ADDR mn10200_find_callers_reg PARAMS ((struct frame_info *fi, int regnum));
  82 extern CORE_ADDR mn10200_frame_saved_pc   PARAMS ((struct frame_info *));
  83 #define FRAME_SAVED_PC(FI) (mn10200_frame_saved_pc (FI))
  84
  85 /* Extract from an array REGBUF containing the (raw) register state
  86    a function return value of type TYPE, and copy that, in virtual format,
  87    into VALBUF. */
  88
  89 #define EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \
  90   memcpy (VALBUF, REGBUF + REGISTER_BYTE (0), TYPE_LENGTH (TYPE))
  91
  92 #define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
  93   extract_address (REGBUF + REGISTER_BYTE (0), \
  94                    REGISTER_RAW_SIZE (0))
  95
  96 #define STORE_RETURN_VALUE(TYPE, VALBUF) \
  97   write_register_bytes(REGISTER_BYTE (0), VALBUF, TYPE_LENGTH (TYPE));
  98
  99 extern CORE_ADDR mn10200_skip_prologue PARAMS ((CORE_ADDR pc));
 100 #define SKIP_PROLOGUE(pc) pc = mn10200_skip_prologue (pc)
 101
 102 #define FRAME_ARGS_SKIP 0
 103
 104 #define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
 105 #define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
 106 #define FRAME_NUM_ARGS(val, fi) ((val) = -1)
 107
 108 extern void mn10200_pop_frame PARAMS ((struct frame_info *frame));
 109 #define POP_FRAME mn10200_pop_frame (get_current_frame ())
 110
 111 #define USE_GENERIC_DUMMY_FRAMES
 112 #define CALL_DUMMY                   {0}
 113 #undef CALL_DUMMY /* for now, no function calls */
 114 #define CALL_DUMMY_START_OFFSET      (0)
 115 #define CALL_DUMMY_BREAKPOINT_OFFSET (0)
 116 #define CALL_DUMMY_LOCATION          AT_ENTRY_POINT
 117 #define FIX_CALL_DUMMY(DUMMY, START, FUNADDR, NARGS, ARGS, TYPE, GCCP)
 118 #define CALL_DUMMY_ADDRESS()         entry_point_address ()
 119
 120 extern CORE_ADDR mn10200_push_return_address PARAMS ((CORE_ADDR, CORE_ADDR));
 121 #define PUSH_RETURN_ADDRESS(PC, SP)  mn10200_push_return_address (PC, SP)
 122
 123 #define PUSH_DUMMY_FRAME        generic_push_dummy_frame ()
 124
 125 extern CORE_ADDR
 126 mn10200_push_arguments PARAMS ((int nargs, struct value **args, CORE_ADDR sp,
 127                              unsigned char struct_return,
 128                              CORE_ADDR struct_addr));
 129 #define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
 130   (SP) = mn10200_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR)
 131
 132 #define STORE_STRUCT_RETURN(STRUCT_ADDR, SP)
 133
 134 #define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP)
 135
 136 #define USE_STRUCT_CONVENTION(GCC_P, TYPE) \
 137         (TYPE_NFIELDS (TYPE) > 1 || TYPE_LENGTH (TYPE) > 4)
 138
 139 /* override the default get_saved_register function with
 140    one that takes account of generic CALL_DUMMY frames */
 141 #define GET_SAVED_REGISTER
 142
 143 /* Define this for Wingdb */
 144
 145 #define TARGET_MN10200