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 #include "regcache.h"
  22
  23 /* Used by mswin.  */
  24 #define TARGET_M32R 1
  25
  26 /* mvs_check REGISTER_NAMES */
  27 #define REGISTER_NAMES \
  28 { "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \
  29   "r8", "r9", "r10", "r11", "r12", "fp", "lr", "sp", \
  30   "psw", "cbr", "spi", "spu", "bpc", "pc", "accl", "acch", \
  31     /*  "cond", "sm", "bsm", "ie", "bie", "bcarry",  */ \
  32 }
  33 /* mvs_check  NUM_REGS */
  34 #define NUM_REGS                        24
  35
  36 /* mvs_check  REGISTER_SIZE */
  37 #define REGISTER_SIZE                   4
  38 /* mvs_check  MAX_REGISTER_RAW_SIZE */
  39 #define MAX_REGISTER_RAW_SIZE           4
  40
  41 /* mvs_check  *_REGNUM */
  42 #define R0_REGNUM       0
  43 #define STRUCT_RETURN_REGNUM 0
  44 #define ARG0_REGNUM     0
  45 #define ARGLAST_REGNUM  3
  46 #define V0_REGNUM       0
  47 #define V1_REGNUM       1
  48 #define FP_REGNUM       13
  49 #define RP_REGNUM       14
  50 #define SP_REGNUM       15
  51 #define PSW_REGNUM      16
  52 #define CBR_REGNUM      17
  53 #define SPI_REGNUM      18
  54 #define SPU_REGNUM      19
  55 #define BPC_REGNUM      20
  56 #define PC_REGNUM       21
  57 #define ACCL_REGNUM     22
  58 #define ACCH_REGNUM     23
  59
  60 /* mvs_check  REGISTER_BYTES */
  61 #define REGISTER_BYTES                  (NUM_REGS * 4)
  62
  63 /* mvs_check  REGISTER_VIRTUAL_TYPE */
  64 #define REGISTER_VIRTUAL_TYPE(REG)      builtin_type_int
  65
  66 /* mvs_check  REGISTER_BYTE */
  67 #define REGISTER_BYTE(REG)              ((REG) * 4)
  68 /* mvs_check  REGISTER_VIRTUAL_SIZE */
  69 #define REGISTER_VIRTUAL_SIZE(REG)      4
  70 /* mvs_check  REGISTER_RAW_SIZE */
  71 #define REGISTER_RAW_SIZE(REG)          4
  72
  73 /* mvs_check  MAX_REGISTER_VIRTUAL_SIZE */
  74 #define MAX_REGISTER_VIRTUAL_SIZE       4
  75
  76 /* mvs_check  BREAKPOINT */
  77 #define BREAKPOINT {0x10, 0xf1}
  78
  79 /* mvs_no_check  FUNCTION_START_OFFSET */
  80 #define FUNCTION_START_OFFSET 0
  81
  82 /* mvs_check  DECR_PC_AFTER_BREAK */
  83 #define DECR_PC_AFTER_BREAK 0
  84
  85 /* mvs_check  INNER_THAN */
  86 #define INNER_THAN(lhs,rhs) ((lhs) < (rhs))
  87
  88 /* mvs_check  SAVED_PC_AFTER_CALL */
  89 #define SAVED_PC_AFTER_CALL(fi) read_register (RP_REGNUM)
  90
  91 struct frame_info;
  92 struct frame_saved_regs;
  93 struct type;
  94 struct value;
  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 (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 (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 (struct frame_info *fi);
 130 /* mvs_check  FRAME_CHAIN */
 131 #define FRAME_CHAIN(fi)                 m32r_frame_chain (fi)
 132
 133 #define FRAME_CHAIN_VALID(fp, frame)    generic_file_frame_chain_valid (fp, frame)
 134
 135 extern CORE_ADDR m32r_find_callers_reg (struct frame_info *fi, int regnum);
 136 extern CORE_ADDR m32r_frame_saved_pc (struct frame_info *);
 137 /* mvs_check  FRAME_SAVED_PC */
 138 #define FRAME_SAVED_PC(fi)              m32r_frame_saved_pc (fi)
 139
 140 /* mvs_check  DEPRECATED_EXTRACT_RETURN_VALUE */
 141 #define DEPRECATED_EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \
 142   memcpy ((VALBUF), \
 143           (char *)(REGBUF) + REGISTER_BYTE (V0_REGNUM) + \
 144           ((TYPE_LENGTH (TYPE) > 4 ? 8 : 4) - TYPE_LENGTH (TYPE)), \
 145           TYPE_LENGTH (TYPE))
 146
 147 /* mvs_check  DEPRECATED_STORE_RETURN_VALUE */
 148 #define DEPRECATED_STORE_RETURN_VALUE(TYPE, VALBUF) \
 149   write_register_bytes(REGISTER_BYTE (V0_REGNUM) + \
 150                        ((TYPE_LENGTH (TYPE) > 4 ? 8:4) - TYPE_LENGTH (TYPE)),\
 151                        (VALBUF), TYPE_LENGTH (TYPE));
 152
 153 extern CORE_ADDR m32r_skip_prologue (CORE_ADDR pc);
 154 /* mvs_check  SKIP_PROLOGUE */
 155 #define SKIP_PROLOGUE(pc) (m32r_skip_prologue (pc))
 156
 157 /* mvs_no_check  FRAME_ARGS_SKIP */
 158 #define FRAME_ARGS_SKIP 0
 159
 160 /* mvs_no_check  FRAME_ARGS_ADDRESS */
 161 #define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
 162 /* mvs_no_check  FRAME_LOCALS_ADDRESS */
 163 #define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
 164 /* mvs_no_check  FRAME_NUM_ARGS */
 165 #define FRAME_NUM_ARGS(fi) (-1)
 166
 167 #define COERCE_FLOAT_TO_DOUBLE(formal, actual) (1)
 168
 169 extern void m32r_write_sp (CORE_ADDR val);
 170 #define TARGET_WRITE_SP m32r_write_sp
 171
 172
 173
 174
 175
 176
 177 /* struct passing and returning stuff */
 178 #define STORE_STRUCT_RETURN(STRUCT_ADDR, SP)    \
 179         write_register (0, STRUCT_ADDR)
 180
 181 extern use_struct_convention_fn m32r_use_struct_convention;
 182 #define USE_STRUCT_CONVENTION(GCC_P, TYPE) m32r_use_struct_convention (GCC_P, TYPE)
 183
 184 #define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
 185   extract_address (REGBUF + REGISTER_BYTE (V0_REGNUM), \
 186                    REGISTER_RAW_SIZE (V0_REGNUM))
 187
 188 #define REG_STRUCT_HAS_ADDR(gcc_p,type)     (TYPE_LENGTH (type) > 8)
 189
 190
 191 /* generic dummy frame stuff */
 192
 193 #define PUSH_DUMMY_FRAME             generic_push_dummy_frame ()
 194 #define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP, FP)
 195
 196
 197 /* target-specific dummy_frame stuff */
 198
 199 extern struct frame_info *m32r_pop_frame (struct frame_info *frame);
 200 /* mvs_check  POP_FRAME */
 201 #define POP_FRAME m32r_pop_frame (get_current_frame ())
 202
 203 /* mvs_no_check  STACK_ALIGN */
 204 /* #define STACK_ALIGN(x) ((x + 3) & ~3) */
 205
 206 extern CORE_ADDR m32r_push_return_address (CORE_ADDR, CORE_ADDR);
 207 extern CORE_ADDR m32r_push_arguments (int nargs,
 208                                       struct value **args,
 209                                       CORE_ADDR sp,
 210                                       unsigned char struct_return,
 211                                       CORE_ADDR struct_addr);
 212
 213
 214
 215 /* mvs_no_check  PUSH_ARGUMENTS */
 216 #define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
 217   (m32r_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR))
 218
 219 #define PUSH_RETURN_ADDRESS(PC, SP)      m32r_push_return_address (PC, SP)
 220
 221 /* override the standard get_saved_register function with
 222    one that takes account of generic CALL_DUMMY frames */
 223 #define GET_SAVED_REGISTER(raw_buffer, optimized, addrp, frame, regnum, lval) \
 224      generic_get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
 225
 226
 227 #define USE_GENERIC_DUMMY_FRAMES 1
 228 #define CALL_DUMMY                   {0}
 229 #define CALL_DUMMY_LENGTH            (0)
 230 #define CALL_DUMMY_START_OFFSET      (0)
 231 #define CALL_DUMMY_BREAKPOINT_OFFSET (0)
 232 #define FIX_CALL_DUMMY(DUMMY1, STARTADDR, FUNADDR, NARGS, ARGS, TYPE, GCCP)
 233 #define CALL_DUMMY_LOCATION          AT_ENTRY_POINT
 234 #define CALL_DUMMY_ADDRESS()         entry_point_address ()