gdb/config/m32r/tm-m32r.h

   1 /* Parameters for execution on a Mitsubishi m32r processor.
   2    Copyright 1996
   3    Free Software Foundation, Inc.
   4
   5 This file is part of GDB.
   6
   7 This program is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2 of the License, or
  10 (at your option) any later version.
  11
  12 This program is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with this program; if not, write to the Free Software
  19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  20
  21 /* mvs_check TARGET_BYTE_ORDER BIG_ENDIAN */
  22 #define TARGET_BYTE_ORDER BIG_ENDIAN
  23
  24 /* mvs_check REGISTER_NAMES */
  25 #define REGISTER_NAMES \
  26 { "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \
  27   "r8", "r9", "r10", "r11", "r12", "fp", "lr", "sp", \
  28   "psw", "cbr", "spi", "spu", "bpc", "pc", "accl", "acch", \
  29     /*  "cond", "sm", "bsm", "ie", "bie", "bcarry",  */ \
  30 }
  31 /* mvs_check  NUM_REGS */
  32 #define NUM_REGS                        24
  33
  34 /* mvs_check  REGISTER_SIZE */
  35 #define REGISTER_SIZE                   4
  36 /* mvs_check  MAX_REGISTER_RAW_SIZE */
  37 #define MAX_REGISTER_RAW_SIZE           4
  38
  39 /* mvs_check  *_REGNUM */
  40 #define R0_REGNUM       0
  41 #define STRUCT_RETURN_REGNUM 0
  42 #define ARG0_REGNUM     0
  43 #define ARGLAST_REGNUM  3
  44 #define V0_REGNUM       0
  45 #define V1_REGNUM       1
  46 #define FP_REGNUM       13
  47 #define RP_REGNUM       14
  48 #define SP_REGNUM       15
  49 #define PSW_REGNUM      16
  50 #define CBR_REGNUM      17
  51 #define SPI_REGNUM      18
  52 #define SPU_REGNUM      19
  53 #define BPC_REGNUM      20
  54 #define PC_REGNUM       21
  55 #define ACCL_REGNUM     22
  56 #define ACCH_REGNUM     23
  57
  58 /* mvs_check  REGISTER_BYTES */
  59 #define REGISTER_BYTES                  (NUM_REGS * 4)
  60
  61 /* mvs_check  REGISTER_VIRTUAL_TYPE */
  62 #define REGISTER_VIRTUAL_TYPE(REG)      builtin_type_int
  63
  64 /* mvs_check  REGISTER_BYTE */
  65 #define REGISTER_BYTE(REG)              ((REG) * 4)
  66 /* mvs_check  REGISTER_VIRTUAL_SIZE */
  67 #define REGISTER_VIRTUAL_SIZE(REG)      4
  68 /* mvs_check  REGISTER_RAW_SIZE */
  69 #define REGISTER_RAW_SIZE(REG)          4
  70
  71 /* mvs_check  MAX_REGISTER_VIRTUAL_SIZE */
  72 #define MAX_REGISTER_VIRTUAL_SIZE       4
  73
  74 /* mvs_check  BREAKPOINT */
  75 #define BREAKPOINT {0x10, 0xf1}
  76
  77 /* mvs_no_check  FUNCTION_START_OFFSET */
  78 #define FUNCTION_START_OFFSET 0
  79
  80 /* mvs_check  DECR_PC_AFTER_BREAK */
  81 #define DECR_PC_AFTER_BREAK 0
  82
  83 /* mvs_check  INNER_THAN */
  84 #define INNER_THAN <
  85
  86 /* mvs_check  SAVED_PC_AFTER_CALL */
  87 #define SAVED_PC_AFTER_CALL(fi) read_register (RP_REGNUM)
  88
  89 #ifdef __STDC__
  90 struct frame_info;
  91 struct frame_saved_regs;
  92 struct type;
  93 struct value;
  94 #endif
  95
  96 /* Define other aspects of the stack frame.
  97    We keep the offsets of all saved registers, 'cause we need 'em a lot!
  98    We also keep the current size of the stack frame, and whether
  99    the frame pointer is valid (for frameless functions, and when we're
 100    still in the prologue of a function with a frame) */
 101
 102 /* mvs_check  EXTRA_FRAME_INFO */
 103 #define EXTRA_FRAME_INFO        \
 104   struct frame_saved_regs fsr;  \
 105   int framesize;                \
 106   int using_frame_pointer;
 107
 108
 109 extern void m32r_init_extra_frame_info PARAMS ((struct frame_info *fi));
 110 /* mvs_check  INIT_EXTRA_FRAME_INFO */
 111 #define INIT_EXTRA_FRAME_INFO(fromleaf, fi) m32r_init_extra_frame_info (fi)
 112 /* mvs_no_check  INIT_FRAME_PC */
 113 #define INIT_FRAME_PC           /* Not necessary */
 114
 115 extern void
 116 m32r_frame_find_saved_regs PARAMS ((struct frame_info *fi,
 117                                     struct frame_saved_regs *regaddr));
 118
 119 /* Put here the code to store, into a struct frame_saved_regs,
 120    the addresses of the saved registers of frame described by FRAME_INFO.
 121    This includes special registers such as pc and fp saved in special
 122    ways in the stack frame.  sp is even more special:
 123    the address we return for it IS the sp for the next frame.  */
 124
 125 /* mvs_check  FRAME_FIND_SAVED_REGS */
 126 #define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs)         \
 127    m32r_frame_find_saved_regs(frame_info, &(frame_saved_regs))
 128
 129 extern CORE_ADDR m32r_frame_chain PARAMS ((struct frame_info *fi));
 130 /* mvs_check  FRAME_CHAIN */
 131 #define FRAME_CHAIN(fi) m32r_frame_chain (fi)
 132
 133 extern int generic_frame_chain_valid PARAMS ((CORE_ADDR, struct frame_info *));
 134 #define FRAME_CHAIN_VALID(fp, frame)    (generic_frame_chain_valid (fp, frame))
 135
 136 extern CORE_ADDR m32r_find_callers_reg PARAMS ((struct frame_info *fi,
 137                                                 int regnum));
 138 extern CORE_ADDR m32r_frame_saved_pc PARAMS((struct frame_info *));
 139 /* mvs_check  FRAME_SAVED_PC */
 140 #define FRAME_SAVED_PC(fi) (m32r_frame_saved_pc (fi))
 141
 142 /* mvs_check  EXTRACT_RETURN_VALUE */
 143 #define EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \
 144   memcpy ((VALBUF), \
 145           (char *)(REGBUF) + REGISTER_BYTE (V0_REGNUM) + \
 146           ((TYPE_LENGTH (TYPE) > 4 ? 8 : 4) - TYPE_LENGTH (TYPE)), \
 147           TYPE_LENGTH (TYPE))
 148
 149 /* mvs_check  STORE_RETURN_VALUE */
 150 #define STORE_RETURN_VALUE(TYPE, VALBUF) \
 151   write_register_bytes(REGISTER_BYTE (V0_REGNUM) + \
 152                        ((TYPE_LENGTH (TYPE) > 4 ? 8:4) - TYPE_LENGTH (TYPE)),\
 153                        (VALBUF), TYPE_LENGTH (TYPE));
 154
 155 extern CORE_ADDR m32r_skip_prologue PARAMS ((CORE_ADDR pc));
 156 /* mvs_check  SKIP_PROLOGUE */
 157 #define SKIP_PROLOGUE(pc) pc = m32r_skip_prologue (pc)
 158
 159 /* mvs_no_check  FRAME_ARGS_SKIP */
 160 #define FRAME_ARGS_SKIP 0
 161
 162 /* mvs_no_check  FRAME_ARGS_ADDRESS */
 163 #define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
 164 /* mvs_no_check  FRAME_LOCALS_ADDRESS */
 165 #define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
 166 /* mvs_no_check  FRAME_NUM_ARGS */
 167 #define FRAME_NUM_ARGS(val, fi) ((val) = -1)
 168
 169 #define COERCE_FLOAT_TO_DOUBLE 1
 170
 171 #define TARGET_WRITE_SP m32r_write_sp
 172
 173
 174
 175
 176
 177
 178 /* struct passing and returning stuff */
 179 #define STORE_STRUCT_RETURN(STRUCT_ADDR, SP)    \
 180         write_register (0, STRUCT_ADDR)
 181
 182 #define USE_STRUCT_CONVENTION(GCC_P, TYPE) \
 183         (TYPE_LENGTH (TYPE) > 8)
 184
 185 #define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
 186   (extract_address (REGBUF + REGISTER_BYTE (V0_REGNUM), \
 187                     REGISTER_RAW_SIZE (V0_REGNUM)))
 188
 189 #define REG_STRUCT_HAS_ADDR(gcc_p,type)     (TYPE_LENGTH (type) > 8)
 190
 191
 192
 193
 194
 195 /* generic dummy frame stuff */
 196
 197 extern CORE_ADDR generic_read_register_dummy PARAMS ((struct frame_info *fi,
 198                                                       int regno));
 199
 200 extern void generic_push_dummy_frame    PARAMS ((void));
 201 extern void generic_pop_dummy_frame     PARAMS ((void));
 202
 203 extern int  generic_pc_in_call_dummy    PARAMS ((CORE_ADDR pc,
 204                                                  CORE_ADDR fp,
 205                                                  CORE_ADDR sp));
 206 extern char * generic_find_dummy_frame  PARAMS ((CORE_ADDR pc,
 207                                                  CORE_ADDR fp,
 208                                                  CORE_ADDR sp));
 209
 210 #define PUSH_DUMMY_FRAME             (generic_push_dummy_frame ())
 211 #define PC_IN_CALL_DUMMY(PC, SP, FP) (generic_pc_in_call_dummy (PC, SP, FP))
 212
 213
 214 /* target-specific dummy_frame stuff */
 215
 216 extern struct frame_info *m32r_pop_frame PARAMS ((struct frame_info *frame));
 217 /* mvs_check  POP_FRAME */
 218 #define POP_FRAME m32r_pop_frame (get_current_frame ())
 219
 220 /* mvs_no_check  STACK_ALIGN */
 221 /* #define STACK_ALIGN(x) ((x + 3) & ~3) */
 222
 223 extern void m32r_push_return_address PARAMS ((CORE_ADDR));
 224 extern CORE_ADDR m32r_push_arguments PARAMS ((int nargs,
 225                                               struct value **args,
 226                                               CORE_ADDR sp,
 227                                               unsigned char struct_return,
 228                                               CORE_ADDR struct_addr));
 229
 230
 231
 232 /* mvs_no_check  PUSH_ARGUMENTS */
 233 #define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
 234   (SP) = m32r_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR)
 235
 236
 237
 238 #define CALL_DUMMY                 { } /* mvs_no_check  CALL_DUMMY */
 239 #define CALL_DUMMY_ADDRESS() (entry_point_address ()) /* mvs_no_check  CALL_DUMMY_ADDRESS */
 240
 241 #define CALL_DUMMY_START_OFFSET    (0) /* mvs_no_check  CALL_DUMMY_START_OFFSET */
 242 #define CALL_DUMMY_BREAKPOINT_OFFSET (0) /* mvs_no_check  CALL_DUMMY_BREAKPOINT_OFFSET */
 243 #define CALL_DUMMY_LENGTH  (0)  /* mvs_no_check CALL_DUMMY_LENGTH */
 244
 245 /* mvs_no_check  FIX_CALL_DUMMY */
 246 #define FIX_CALL_DUMMY(DUMMY1, START_SP, FUNADDR, NARGS, \
 247                        ARGS, VALUE_TYPE, USING_GCC)
 248
 249 #define CALL_DUMMY_LOCATION        AT_ENTRY_POINT
 250 #define PUSH_RETURN_ADDRESS(pc)      (m32r_push_return_address (pc))