gdb/config/mn10300/tm-mn10300.h

   1 /* Parameters for execution on a Matsushita mn10300 processor.
   2    Copyright 1996
   3    Free Software Foundation, Inc.
   4
   5    Contributed by Geoffrey Noer <noer@cygnus.com>
   6
   7 This file is part of GDB.
   8
   9 This program is free software; you can redistribute it and/or modify
  10 it under the terms of the GNU General Public License as published by
  11 the Free Software Foundation; either version 2 of the License, or
  12 (at your option) any later version.
  13
  14 This program is distributed in the hope that it will be useful,
  15 but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 GNU General Public License for more details.
  18
  19 You should have received a copy of the GNU General Public License
  20 along with this program; if not, write to the Free Software
  21 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  22
  23 #define TARGET_BYTE_ORDER LITTLE_ENDIAN
  24
  25 #define REGISTER_BYTES (NUM_REGS * 4)
  26
  27 #define REGISTER_SIZE 4
  28 #define MAX_REGISTER_RAW_SIZE 4
  29
  30 #define NUM_REGS 19
  31
  32 #define REGISTER_NAMES \
  33 { "d0", "d1", "d2", "d3", "a0", "a1", "a2", "a3", \
  34   "sp", "pc", "mdr", "psw", "lir", "lar" \
  35                                         \
  36   "fp", "vo", "rp", "arg0", "arglast"}
  37
  38 #define SP_REGNUM 8
  39 #define PC_REGNUM 9
  40 #define MDR_REGNUM 10
  41 #define PSW_REGNUM 11
  42 #define LIR_REGNUM 12
  43 #define LAR_REGNUM 13
  44
  45 #define FP_REGNUM 14 /* needs to be virtual register ??? */
  46 #define V0_REGNUM 15 /* needs to be virtual register ??? */
  47 #define RP_REGNUM 16 /* needs to be virtual register ??? */
  48 #define ARG0_REGNUM 17 /* needs to be virtual register ??? */
  49 #define ARGLAST_REGNUM 18 /* needs to be virtual register ??? */
  50
  51 #define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int
  52
  53 #define REGISTER_BYTE(REG) ((REG) * 4)
  54 #define REGISTER_VIRTUAL_SIZE(REG) 4
  55 #define REGISTER_RAW_SIZE(REG) 4
  56
  57 #define MAX_REGISTER_VIRTUAL_SIZE 4
  58
  59 #define BREAKPOINT {0xff, 0xff}
  60
  61 #define FUNCTION_START_OFFSET 0
  62
  63 #define DECR_PC_AFTER_BREAK 0
  64
  65 #define INNER_THAN <
  66
  67 #define SAVED_PC_AFTER_CALL(fi) read_register (RP_REGNUM)
  68
  69 #ifdef __STDC__
  70 struct frame_info;
  71 struct frame_saved_regs;
  72 struct type;
  73 struct value;
  74 #endif
  75
  76 #define EXTRA_FRAME_INFO struct frame_saved_regs fsr;
  77
  78 extern void mn10300_init_extra_frame_info PARAMS ((struct frame_info *fi));
  79 #define INIT_EXTRA_FRAME_INFO(fromleaf, fi) mn10300_init_extra_frame_info (fi)
  80 #define INIT_FRAME_PC           /* Not necessary */
  81
  82 extern void mn10300_frame_find_saved_regs PARAMS ((struct frame_info *fi, struct frame_saved_regs *regaddr));
  83 #define FRAME_FIND_SAVED_REGS(fi, regaddr) regaddr = fi->fsr
  84
  85 extern CORE_ADDR mn10300_frame_chain PARAMS ((struct frame_info *fi));
  86 #define FRAME_CHAIN(fi) mn10300_frame_chain (fi)
  87 #define FRAME_CHAIN_VALID(FP, FI)       generic_frame_chain_valid (FP, FI)
  88
  89 extern CORE_ADDR mn10300_find_callers_reg PARAMS ((struct frame_info *fi, int regnum));
  90 extern CORE_ADDR mn10300_frame_saved_pc   PARAMS ((struct frame_info *));
  91 #define FRAME_SAVED_PC(FI) (mn10300_frame_saved_pc (FI))
  92
  93 #define EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \
  94   memcpy (VALBUF, REGBUF + REGISTER_BYTE (V0_REGNUM), TYPE_LENGTH (TYPE))
  95
  96 #define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
  97   extract_address (REGBUF + REGISTER_BYTE (V0_REGNUM), \
  98                    REGISTER_RAW_SIZE (V0_REGNUM))
  99
 100 #define STORE_RETURN_VALUE(TYPE, VALBUF) \
 101   write_register_bytes(REGISTER_BYTE (V0_REGNUM), VALBUF, TYPE_LENGTH (TYPE));
 102
 103 extern CORE_ADDR mn10300_skip_prologue PARAMS ((CORE_ADDR pc));
 104 #define SKIP_PROLOGUE(pc) pc = mn10300_skip_prologue (pc)
 105
 106 #define FRAME_ARGS_SKIP 0
 107
 108 #define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
 109 #define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
 110 #define FRAME_NUM_ARGS(val, fi) ((val) = -1)
 111
 112 extern void mn10300_pop_frame PARAMS ((struct frame_info *frame));
 113 #define POP_FRAME mn10300_pop_frame (get_current_frame ())
 114
 115 #define USE_GENERIC_DUMMY_FRAMES
 116 #define CALL_DUMMY                   {0}
 117 #undef CALL_DUMMY /* for now, no function calls */
 118 #define CALL_DUMMY_START_OFFSET      (0)
 119 #define CALL_DUMMY_BREAKPOINT_OFFSET (0)
 120 #define CALL_DUMMY_LOCATION          AT_ENTRY_POINT
 121 #define FIX_CALL_DUMMY(DUMMY, START, FUNADDR, NARGS, ARGS, TYPE, GCCP)
 122 #define CALL_DUMMY_ADDRESS()         entry_point_address ()
 123 extern CORE_ADDR mn10300_push_return_address PARAMS ((CORE_ADDR, CORE_ADDR));
 124 #define PUSH_RETURN_ADDRESS(PC, SP)  mn10300_push_return_address (PC, SP)
 125
 126 #define PUSH_DUMMY_FRAME        generic_push_dummy_frame ()
 127
 128 extern CORE_ADDR
 129 mn10300_push_arguments PARAMS ((int nargs, struct value **args, CORE_ADDR sp,
 130                              unsigned char struct_return,
 131                              CORE_ADDR struct_addr));
 132 #define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
 133   (SP) = mn10300_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR)
 134
 135 #define STORE_STRUCT_RETURN(STRUCT_ADDR, SP)
 136
 137 #define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP)
 138
 139 #define USE_STRUCT_CONVENTION(GCC_P, TYPE) \
 140         (TYPE_NFIELDS (TYPE) > 1 || TYPE_LENGTH (TYPE) > 4)
 141
 142 /* override the default get_saved_register function with
 143    one that takes account of generic CALL_DUMMY frames */
 144 #define GET_SAVED_REGISTER
 145
 146 /* Define this for Wingdb */
 147
 148 #define TARGET_MN10300