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 /* The mn10300 is little endian.  */
  23 #define TARGET_BYTE_ORDER LITTLE_ENDIAN
  24
  25 /* All registers are 32bits (phew!).  */
  26 #define REGISTER_SIZE 4
  27 #define MAX_REGISTER_RAW_SIZE 4
  28 #define NUM_REGS 32
  29
  30 #define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int
  31
  32 #define REGISTER_BYTE(REG) ((REG) * 4)
  33 #define REGISTER_VIRTUAL_SIZE(REG) 4
  34 #define REGISTER_RAW_SIZE(REG) 4
  35
  36 #define MAX_REGISTER_VIRTUAL_SIZE 4
  37
  38 #define REGISTER_BYTES (NUM_REGS * REGISTER_SIZE)
  39
  40 #define REGISTER_NAMES \
  41 { "d0", "d1", "d2", "d3", "a0", "a1", "a2", "a3", \
  42   "sp", "pc", "mdr", "psw", "lir", "lar", "", "", \
  43   "", "", "", "", "", "", "", "", \
  44   "", "", "", "", "", "", "", "fp" }
  45
  46 #define D2_REGNUM 2
  47 #define D3_REGNUM 3
  48 #define A2_REGNUM 6
  49 #define A3_REGNUM 7
  50 #define SP_REGNUM 8
  51 #define PC_REGNUM 9
  52 #define MDR_REGNUM 10
  53 #define PSW_REGNUM 11
  54 #define LIR_REGNUM 12
  55 #define LAR_REGNUM 13
  56 /* start-sanitize-am33 */
  57 #define E0_REGNUM 14
  58 /* end-sanitize-am33 */
  59
  60 /* Pseudo register that contains true address of executing stack frame */
  61 #define FP_REGNUM 31
  62
  63 /* BREAKPOINT_FROM_PC uses the program counter value to determine the
  64    breakpoint that should be used */
  65 extern breakpoint_from_pc_fn mn10300_breakpoint_from_pc;
  66 #define BREAKPOINT_FROM_PC(pcptr, lenptr) mn10300_breakpoint_from_pc (pcptr, lenptr)
  67
  68 #define FUNCTION_START_OFFSET 0
  69
  70 #define DECR_PC_AFTER_BREAK 0
  71
  72 #define INNER_THAN <
  73
  74 #define SAVED_PC_AFTER_CALL(frame) \
  75   read_memory_integer (read_register (SP_REGNUM), 4)
  76
  77 #ifdef __STDC__
  78 struct frame_info;
  79 struct frame_saved_regs;
  80 struct type;
  81 struct value;
  82 #endif
  83
  84 #define EXTRA_FRAME_INFO struct frame_saved_regs fsr; int status; int stack_size;
  85
  86 extern void mn10300_init_extra_frame_info PARAMS ((struct frame_info *));
  87 #define INIT_EXTRA_FRAME_INFO(fromleaf, fi) mn10300_init_extra_frame_info (fi)
  88 #define INIT_FRAME_PC           /* Not necessary */
  89
  90 extern void mn10300_frame_find_saved_regs PARAMS ((struct frame_info *,
  91                                                    struct frame_saved_regs *));
  92 #define FRAME_FIND_SAVED_REGS(fi, regaddr) regaddr = fi->fsr
  93
  94 extern CORE_ADDR mn10300_frame_chain PARAMS ((struct frame_info *));
  95 #define FRAME_CHAIN(fi) mn10300_frame_chain (fi)
  96 #define FRAME_CHAIN_VALID(FP, FI)       generic_frame_chain_valid (FP, FI)
  97
  98 extern CORE_ADDR mn10300_find_callers_reg PARAMS ((struct frame_info *, int));
  99 extern CORE_ADDR mn10300_frame_saved_pc   PARAMS ((struct frame_info *));
 100 #define FRAME_SAVED_PC(FI) (mn10300_frame_saved_pc (FI))
 101
 102 /* Extract from an array REGBUF containing the (raw) register state
 103    a function return value of type TYPE, and copy that, in virtual format,
 104    into VALBUF. */
 105
 106 #define EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \
 107   if (TYPE_CODE (TYPE) == TYPE_CODE_PTR) \
 108     memcpy (VALBUF, REGBUF + REGISTER_BYTE (4), TYPE_LENGTH (TYPE)); \
 109   else \
 110     memcpy (VALBUF, REGBUF + REGISTER_BYTE (0), TYPE_LENGTH (TYPE));
 111
 112
 113 #define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
 114   extract_address (REGBUF + REGISTER_BYTE (4), \
 115                    REGISTER_RAW_SIZE (4))
 116
 117 #define STORE_RETURN_VALUE(TYPE, VALBUF) \
 118   if (TYPE_CODE (TYPE) == TYPE_CODE_PTR) \
 119     write_register_bytes(REGISTER_BYTE (4), VALBUF, TYPE_LENGTH (TYPE)); \
 120   else \
 121     write_register_bytes(REGISTER_BYTE (0), VALBUF, TYPE_LENGTH (TYPE));
 122
 123 #define STORE_STRUCT_RETURN(STRUCT_ADDR, SP) \
 124   (SP) = mn10300_store_struct_return (STRUCT_ADDR, SP)
 125
 126 extern CORE_ADDR mn10300_skip_prologue PARAMS ((CORE_ADDR));
 127 #define SKIP_PROLOGUE(pc) pc = mn10300_skip_prologue (pc)
 128
 129 #define FRAME_ARGS_SKIP 0
 130
 131 #define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
 132 #define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
 133 #define FRAME_NUM_ARGS(val, fi) ((val) = -1)
 134
 135 extern void mn10300_pop_frame PARAMS ((struct frame_info *));
 136 #define POP_FRAME mn10300_pop_frame (get_current_frame ())
 137
 138 #define USE_GENERIC_DUMMY_FRAMES
 139 #define CALL_DUMMY                   {0}
 140 #define CALL_DUMMY_START_OFFSET      (0)
 141 #define CALL_DUMMY_BREAKPOINT_OFFSET (0)
 142 #define CALL_DUMMY_LOCATION          AT_ENTRY_POINT
 143 #define FIX_CALL_DUMMY(DUMMY, START, FUNADDR, NARGS, ARGS, TYPE, GCCP)
 144 #define CALL_DUMMY_ADDRESS()         entry_point_address ()
 145
 146 extern CORE_ADDR mn10300_push_return_address PARAMS ((CORE_ADDR, CORE_ADDR));
 147 #define PUSH_RETURN_ADDRESS(PC, SP)  mn10300_push_return_address (PC, SP)
 148
 149 #define PUSH_DUMMY_FRAME        generic_push_dummy_frame ()
 150
 151 extern CORE_ADDR
 152 mn10300_push_arguments PARAMS ((int, struct value **, CORE_ADDR,
 153                                 unsigned char, CORE_ADDR ));
 154 #define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
 155   (SP) = mn10300_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR)
 156
 157 #define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP)
 158
 159 #define REG_STRUCT_HAS_ADDR(gcc_p,TYPE) \
 160         (TYPE_LENGTH (TYPE) > 8)
 161
 162 extern use_struct_convention_fn mn10300_use_struct_convention;
 163 #define USE_STRUCT_CONVENTION(GCC_P, TYPE) mn10300_use_struct_convention (GCC_P, TYPE)
 164
 165 /* override the default get_saved_register function with
 166    one that takes account of generic CALL_DUMMY frames */
 167 #define GET_SAVED_REGISTER
 168
 169 /* Define this for Wingdb */
 170
 171 #define TARGET_MN10300