gdb/config/mn10300/tm-mn10300.h

   1 /* Parameters for execution on a Matsushita mn10300 processor.
   2    Copyright 1996, 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 #define REGISTER_BYTES (NUM_REGS * 4)
  25
  26 #define REGISTER_SIZE 4
  27 #define MAX_REGISTER_RAW_SIZE 4
  28
  29 #define NUM_REGS 14
  30
  31 #define REGISTER_NAMES \
  32 { "d0", "d1", "d2", "d3", "a0", "a1", "a2", "a3", \
  33   "sp", "pc", "mdr", "psw", "lir", "lar" }
  34
  35 #define SP_REGNUM 8
  36 #define PC_REGNUM 9
  37 #define MDR_REGNUM 10
  38 #define PSW_REGNUM 11
  39 #define LIR_REGNUM 12
  40 #define LAR_REGNUM 13
  41
  42 #define FP_REGNUM 7
  43
  44 #define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int
  45
  46 #define REGISTER_BYTE(REG) ((REG) * 4)
  47 #define REGISTER_VIRTUAL_SIZE(REG) 4
  48 #define REGISTER_RAW_SIZE(REG) 4
  49
  50 #define MAX_REGISTER_VIRTUAL_SIZE 4
  51
  52 #define BREAKPOINT {0xff, 0xff}
  53
  54 #define FUNCTION_START_OFFSET 0
  55
  56 #define DECR_PC_AFTER_BREAK 0
  57
  58 #define INNER_THAN <
  59
  60 #define SAVED_PC_AFTER_CALL(frame) \
  61   read_memory_integer (read_register (SP_REGNUM), 4)
  62
  63 #ifdef __STDC__
  64 struct frame_info;
  65 struct frame_saved_regs;
  66 struct type;
  67 struct value;
  68 #endif
  69
  70 #define EXTRA_FRAME_INFO struct frame_saved_regs fsr;
  71
  72 extern void mn10300_frame_find_saved_regs PARAMS ((struct frame_info *fi, struct frame_saved_regs *regaddr));
  73 #define FRAME_FIND_SAVED_REGS(fi, regaddr) regaddr = fi->fsr
  74
  75 extern CORE_ADDR mn10300_frame_chain PARAMS ((struct frame_info *fi));
  76 #define FRAME_CHAIN(fi) mn10300_frame_chain (fi)
  77 #define FRAME_CHAIN_VALID(FP, FI)       generic_frame_chain_valid (FP, FI)
  78
  79 extern CORE_ADDR mn10300_find_callers_reg PARAMS ((struct frame_info *fi, int regnum));
  80 extern CORE_ADDR mn10300_frame_saved_pc   PARAMS ((struct frame_info *));
  81 #define FRAME_SAVED_PC(FI) (mn10300_frame_saved_pc (FI))
  82
  83 /* Extract from an array REGBUF containing the (raw) register state
  84    a function return value of type TYPE, and copy that, in virtual format,
  85    into VALBUF. */
  86
  87 #define EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \
  88   memcpy (VALBUF, REGBUF + REGISTER_BYTE (0), TYPE_LENGTH (TYPE))
  89
  90 #define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
  91   extract_address (REGBUF + REGISTER_BYTE (0), \
  92                    REGISTER_RAW_SIZE (0))
  93
  94 #define STORE_RETURN_VALUE(TYPE, VALBUF) \
  95   write_register_bytes(REGISTER_BYTE (0), VALBUF, TYPE_LENGTH (TYPE));
  96
  97 extern CORE_ADDR mn10300_skip_prologue PARAMS ((CORE_ADDR pc));
  98 #define SKIP_PROLOGUE(pc) pc = mn10300_skip_prologue (pc)
  99
 100 #define FRAME_ARGS_SKIP 0
 101
 102 #define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
 103 #define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
 104 #define FRAME_NUM_ARGS(val, fi) ((val) = -1)
 105
 106 extern void mn10300_pop_frame PARAMS ((struct frame_info *frame));
 107 #define POP_FRAME mn10300_pop_frame (get_current_frame ())
 108
 109 #define USE_GENERIC_DUMMY_FRAMES
 110 #define CALL_DUMMY                   {0}
 111 #undef CALL_DUMMY /* for now, no function calls */
 112 #define CALL_DUMMY_START_OFFSET      (0)
 113 #define CALL_DUMMY_BREAKPOINT_OFFSET (0)
 114 #define CALL_DUMMY_LOCATION          AT_ENTRY_POINT
 115 #define FIX_CALL_DUMMY(DUMMY, START, FUNADDR, NARGS, ARGS, TYPE, GCCP)
 116 #define CALL_DUMMY_ADDRESS()         entry_point_address ()
 117
 118 extern CORE_ADDR mn10300_push_return_address PARAMS ((CORE_ADDR, CORE_ADDR));
 119 #define PUSH_RETURN_ADDRESS(PC, SP)  mn10300_push_return_address (PC, SP)
 120
 121 #define PUSH_DUMMY_FRAME        generic_push_dummy_frame ()
 122
 123 extern CORE_ADDR
 124 mn10300_push_arguments PARAMS ((int nargs, struct value **args, CORE_ADDR sp,
 125                              unsigned char struct_return,
 126                              CORE_ADDR struct_addr));
 127 #define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
 128   (SP) = mn10300_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR)
 129
 130 #define STORE_STRUCT_RETURN(STRUCT_ADDR, SP)
 131
 132 #define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP)
 133
 134 #define USE_STRUCT_CONVENTION(GCC_P, TYPE) \
 135         (TYPE_NFIELDS (TYPE) > 1 || TYPE_LENGTH (TYPE) > 4)
 136
 137 /* override the default get_saved_register function with
 138    one that takes account of generic CALL_DUMMY frames */
 139 #define GET_SAVED_REGISTER
 140
 141 /* Define this for Wingdb */
 142
 143 #define TARGET_MN10300