gdb/config/m32r/tm-m32r.h

   1 /* Parameters for execution on a Mitsubishi m32r processor.
   2    Copyright 1996, 1997 Free Software Foundation, Inc.
   3
   4    This file is part of GDB.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 59 Temple Place - Suite 330,
  19    Boston, MA 02111-1307, USA.  */
  20
  21 /* Used by mswin.  */
  22 #define TARGET_M32R 1
  23
  24 /* mvs_check TARGET_BYTE_ORDER BIG_ENDIAN */
  25 #define TARGET_BYTE_ORDER BIG_ENDIAN
  26
  27 /* mvs_check REGISTER_NAMES */
  28 #define REGISTER_NAMES \
  29 { "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \
  30   "r8", "r9", "r10", "r11", "r12", "fp", "lr", "sp", \
  31   "psw", "cbr", "spi", "spu", "bpc", "pc", "accl", "acch", \
  32     /*  "cond", "sm", "bsm", "ie", "bie", "bcarry",  */ \
  33 }
  34 /* mvs_check  NUM_REGS */
  35 #define NUM_REGS                        24
  36
  37 /* mvs_check  REGISTER_SIZE */
  38 #define REGISTER_SIZE                   4
  39 /* mvs_check  MAX_REGISTER_RAW_SIZE */
  40 #define MAX_REGISTER_RAW_SIZE           4
  41
  42 /* mvs_check  *_REGNUM */
  43 #define R0_REGNUM       0
  44 #define STRUCT_RETURN_REGNUM 0
  45 #define ARG0_REGNUM     0
  46 #define ARGLAST_REGNUM  3
  47 #define V0_REGNUM       0
  48 #define V1_REGNUM       1
  49 #define FP_REGNUM       13
  50 #define RP_REGNUM       14
  51 #define SP_REGNUM       15
  52 #define PSW_REGNUM      16
  53 #define CBR_REGNUM      17
  54 #define SPI_REGNUM      18
  55 #define SPU_REGNUM      19
  56 #define BPC_REGNUM      20
  57 #define PC_REGNUM       21
  58 #define ACCL_REGNUM     22
  59 #define ACCH_REGNUM     23
  60
  61 /* mvs_check  REGISTER_BYTES */
  62 #define REGISTER_BYTES                  (NUM_REGS * 4)
  63
  64 /* mvs_check  REGISTER_VIRTUAL_TYPE */
  65 #define REGISTER_VIRTUAL_TYPE(REG)      builtin_type_int
  66
  67 /* mvs_check  REGISTER_BYTE */
  68 #define REGISTER_BYTE(REG)              ((REG) * 4)
  69 /* mvs_check  REGISTER_VIRTUAL_SIZE */
  70 #define REGISTER_VIRTUAL_SIZE(REG)      4
  71 /* mvs_check  REGISTER_RAW_SIZE */
  72 #define REGISTER_RAW_SIZE(REG)          4
  73
  74 /* mvs_check  MAX_REGISTER_VIRTUAL_SIZE */
  75 #define MAX_REGISTER_VIRTUAL_SIZE       4
  76
  77 /* mvs_check  BREAKPOINT */
  78 #define BREAKPOINT {0x10, 0xf1}
  79
  80 /* mvs_no_check  FUNCTION_START_OFFSET */
  81 #define FUNCTION_START_OFFSET 0
  82
  83 /* mvs_check  DECR_PC_AFTER_BREAK */
  84 #define DECR_PC_AFTER_BREAK 0
  85
  86 /* mvs_check  INNER_THAN */
  87 #define INNER_THAN(lhs,rhs) ((lhs) < (rhs))
  88
  89 /* mvs_check  SAVED_PC_AFTER_CALL */
  90 #define SAVED_PC_AFTER_CALL(fi) read_register (RP_REGNUM)
  91
  92 #ifdef __STDC__
  93 struct frame_info;
  94 struct frame_saved_regs;
  95 struct type;
  96 struct value;
  97 #endif
  98
  99 /* Define other aspects of the stack frame.
 100    We keep the offsets of all saved registers, 'cause we need 'em a lot!
 101    We also keep the current size of the stack frame, and whether
 102    the frame pointer is valid (for frameless functions, and when we're
 103    still in the prologue of a function with a frame) */
 104
 105 /* mvs_check  EXTRA_FRAME_INFO */
 106 #define EXTRA_FRAME_INFO        \
 107   struct frame_saved_regs fsr;  \
 108   int framesize;                \
 109   int using_frame_pointer;
 110
 111
 112 extern void m32r_init_extra_frame_info PARAMS ((struct frame_info * fi));
 113 /* mvs_check  INIT_EXTRA_FRAME_INFO */
 114 #define INIT_EXTRA_FRAME_INFO(fromleaf, fi) m32r_init_extra_frame_info (fi)
 115 /* mvs_no_check  INIT_FRAME_PC */
 116 #define INIT_FRAME_PC           /* Not necessary */
 117
 118 extern void
 119 m32r_frame_find_saved_regs PARAMS ((struct frame_info * fi,
 120                                     struct frame_saved_regs * regaddr));
 121
 122 /* Put here the code to store, into a struct frame_saved_regs,
 123    the addresses of the saved registers of frame described by FRAME_INFO.
 124    This includes special registers such as pc and fp saved in special
 125    ways in the stack frame.  sp is even more special:
 126    the address we return for it IS the sp for the next frame.  */
 127
 128 /* mvs_check  FRAME_FIND_SAVED_REGS */
 129 #define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs)         \
 130    m32r_frame_find_saved_regs(frame_info, &(frame_saved_regs))
 131
 132 extern CORE_ADDR m32r_frame_chain PARAMS ((struct frame_info * fi));
 133 /* mvs_check  FRAME_CHAIN */
 134 #define FRAME_CHAIN(fi)                 m32r_frame_chain (fi)
 135
 136 #define FRAME_CHAIN_VALID(fp, frame)    generic_frame_chain_valid (fp, frame)
 137
 138 extern CORE_ADDR m32r_find_callers_reg PARAMS ((struct frame_info * fi,
 139                                                 int regnum));
 140 extern CORE_ADDR m32r_frame_saved_pc PARAMS ((struct frame_info *));
 141 /* mvs_check  FRAME_SAVED_PC */
 142 #define FRAME_SAVED_PC(fi)              m32r_frame_saved_pc (fi)
 143
 144 /* mvs_check  EXTRACT_RETURN_VALUE */
 145 #define EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \
 146   memcpy ((VALBUF), \
 147           (char *)(REGBUF) + REGISTER_BYTE (V0_REGNUM) + \
 148           ((TYPE_LENGTH (TYPE) > 4 ? 8 : 4) - TYPE_LENGTH (TYPE)), \
 149           TYPE_LENGTH (TYPE))
 150
 151 /* mvs_check  STORE_RETURN_VALUE */
 152 #define STORE_RETURN_VALUE(TYPE, VALBUF) \
 153   write_register_bytes(REGISTER_BYTE (V0_REGNUM) + \
 154                        ((TYPE_LENGTH (TYPE) > 4 ? 8:4) - TYPE_LENGTH (TYPE)),\
 155                        (VALBUF), TYPE_LENGTH (TYPE));
 156
 157 extern CORE_ADDR m32r_skip_prologue PARAMS ((CORE_ADDR pc));
 158 /* mvs_check  SKIP_PROLOGUE */
 159 #define SKIP_PROLOGUE(pc) (m32r_skip_prologue (pc))
 160
 161 /* mvs_no_check  FRAME_ARGS_SKIP */
 162 #define FRAME_ARGS_SKIP 0
 163
 164 /* mvs_no_check  FRAME_ARGS_ADDRESS */
 165 #define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
 166 /* mvs_no_check  FRAME_LOCALS_ADDRESS */
 167 #define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
 168 /* mvs_no_check  FRAME_NUM_ARGS */
 169 #define FRAME_NUM_ARGS(fi) (-1)
 170
 171 #define COERCE_FLOAT_TO_DOUBLE 1
 172
 173 #define TARGET_WRITE_SP m32r_write_sp
 174
 175
 176
 177
 178
 179
 180 /* struct passing and returning stuff */
 181 #define STORE_STRUCT_RETURN(STRUCT_ADDR, SP)    \
 182         write_register (0, STRUCT_ADDR)
 183
 184 extern use_struct_convention_fn m32r_use_struct_convention;
 185 #define USE_STRUCT_CONVENTION(GCC_P, TYPE) m32r_use_struct_convention (GCC_P, TYPE)
 186
 187 #define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
 188   extract_address (REGBUF + REGISTER_BYTE (V0_REGNUM), \
 189                    REGISTER_RAW_SIZE (V0_REGNUM))
 190
 191 #define REG_STRUCT_HAS_ADDR(gcc_p,type)     (TYPE_LENGTH (type) > 8)
 192
 193
 194 /* generic dummy frame stuff */
 195
 196 #define PUSH_DUMMY_FRAME             generic_push_dummy_frame ()
 197 #define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP, FP)
 198
 199
 200 /* target-specific dummy_frame stuff */
 201
 202 extern struct frame_info *m32r_pop_frame PARAMS ((struct frame_info * frame));
 203 /* mvs_check  POP_FRAME */
 204 #define POP_FRAME m32r_pop_frame (get_current_frame ())
 205
 206 /* mvs_no_check  STACK_ALIGN */
 207 /* #define STACK_ALIGN(x) ((x + 3) & ~3) */
 208
 209 extern CORE_ADDR m32r_push_return_address PARAMS ((CORE_ADDR, CORE_ADDR));
 210 extern CORE_ADDR m32r_push_arguments PARAMS ((int nargs,
 211                                               struct value ** args,
 212                                               CORE_ADDR sp,
 213                                               unsigned char struct_return,
 214                                               CORE_ADDR struct_addr));
 215
 216
 217
 218 /* mvs_no_check  PUSH_ARGUMENTS */
 219 #define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
 220   (m32r_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR))
 221
 222 #define PUSH_RETURN_ADDRESS(PC, SP)      m32r_push_return_address (PC, SP)
 223
 224 /* override the standard get_saved_register function with
 225    one that takes account of generic CALL_DUMMY frames */
 226 #define GET_SAVED_REGISTER(raw_buffer, optimized, addrp, frame, regnum, lval) \
 227      generic_get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
 228
 229
 230 #define USE_GENERIC_DUMMY_FRAMES 1
 231 #define CALL_DUMMY                   {0}
 232 #define CALL_DUMMY_LENGTH            (0)
 233 #define CALL_DUMMY_START_OFFSET      (0)
 234 #define CALL_DUMMY_BREAKPOINT_OFFSET (0)
 235 #define FIX_CALL_DUMMY(DUMMY1, STARTADDR, FUNADDR, NARGS, ARGS, TYPE, GCCP)
 236 #define CALL_DUMMY_LOCATION          AT_ENTRY_POINT
 237 #define CALL_DUMMY_ADDRESS()         entry_point_address ()