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 ARG0_REGNUM     0
  42 #define ARGLAST_REGNUM  3
  43 #define V0_REGNUM       0
  44 #define V1_REGNUM       1
  45 #define FP_REGNUM       13
  46 #define RP_REGNUM       14
  47 #define SP_REGNUM       15
  48 #define PSW_REGNUM      16
  49 #define CBR_REGNUM      17
  50 #define SPI_REGNUM      18
  51 #define SPU_REGNUM      19
  52 #define BPC_REGNUM      20
  53 #define PC_REGNUM       21
  54 #define ACCL_REGNUM     22
  55 #define ACCH_REGNUM     23
  56
  57 /* mvs_check  REGISTER_BYTES */
  58 #define REGISTER_BYTES                  (NUM_REGS * 4)
  59
  60 /* mvs_check  REGISTER_VIRTUAL_TYPE */
  61 #define REGISTER_VIRTUAL_TYPE(REG)      builtin_type_int
  62
  63 /* mvs_check  REGISTER_BYTE */
  64 #define REGISTER_BYTE(REG)              ((REG) * 4)
  65 /* mvs_check  REGISTER_VIRTUAL_SIZE */
  66 #define REGISTER_VIRTUAL_SIZE(REG)      4
  67 /* mvs_check  REGISTER_RAW_SIZE */
  68 #define REGISTER_RAW_SIZE(REG)          4
  69
  70 /* mvs_check  MAX_REGISTER_VIRTUAL_SIZE */
  71 #define MAX_REGISTER_VIRTUAL_SIZE       4
  72
  73 /* mvs_check  BREAKPOINT */
  74 #define BREAKPOINT {0x10, 0xf1}
  75
  76 /* mvs_no_check  FUNCTION_START_OFFSET */
  77 #define FUNCTION_START_OFFSET 0
  78
  79 /* mvs_check  DECR_PC_AFTER_BREAK */
  80 #define DECR_PC_AFTER_BREAK 0
  81
  82 /* mvs_check  INNER_THAN */
  83 #define INNER_THAN <
  84
  85 /* mvs_check  SAVED_PC_AFTER_CALL */
  86 #define SAVED_PC_AFTER_CALL(fi) read_register (RP_REGNUM)
  87
  88 #ifdef __STDC__
  89 struct frame_info;
  90 struct frame_saved_regs;
  91 struct type;
  92 struct value;
  93 #endif
  94
  95 /* Define other aspects of the stack frame.
  96    We keep the offsets of all saved registers, 'cause we need 'em a lot!
  97    We also keep the current size of the stack frame, and whether
  98    the frame pointer is valid (for frameless functions, and when we're
  99    still in the prologue of a function with a frame) */
 100
 101 /* mvs_check  EXTRA_FRAME_INFO */
 102 #define EXTRA_FRAME_INFO        \
 103   struct frame_saved_regs fsr;  \
 104   int framesize;                \
 105   int using_frame_pointer;
 106
 107
 108 extern void m32r_init_extra_frame_info PARAMS ((struct frame_info *fi));
 109 /* mvs_check  INIT_EXTRA_FRAME_INFO */
 110 #define INIT_EXTRA_FRAME_INFO(fromleaf, fi) m32r_init_extra_frame_info (fi)
 111 /* mvs_no_check  INIT_FRAME_PC */
 112 #define INIT_FRAME_PC           /* Not necessary */
 113
 114 extern void
 115 m32r_frame_find_saved_regs PARAMS ((struct frame_info *fi,
 116                                     struct frame_saved_regs *regaddr));
 117
 118 /* Put here the code to store, into a struct frame_saved_regs,
 119    the addresses of the saved registers of frame described by FRAME_INFO.
 120    This includes special registers such as pc and fp saved in special
 121    ways in the stack frame.  sp is even more special:
 122    the address we return for it IS the sp for the next frame.  */
 123
 124 /* mvs_check  FRAME_FIND_SAVED_REGS */
 125 #define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs)         \
 126    m32r_frame_find_saved_regs(frame_info, &(frame_saved_regs))
 127
 128 extern CORE_ADDR m32r_frame_chain PARAMS ((struct frame_info *fi));
 129 /* mvs_check  FRAME_CHAIN */
 130 #define FRAME_CHAIN(fi) m32r_frame_chain (fi)
 131
 132 extern CORE_ADDR m32r_find_callers_reg PARAMS ((struct frame_info *fi,
 133                                                 int regnum));
 134 /* mvs_check  FRAME_SAVED_PC */
 135 #define FRAME_SAVED_PC(fi) (m32r_find_callers_reg (fi, RP_REGNUM))
 136
 137 /* mvs_check  EXTRACT_RETURN_VALUE */
 138 #define EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \
 139   memcpy ((VALBUF), \
 140           (char *)(REGBUF) + REGISTER_BYTE (V0_REGNUM) + \
 141           ((TYPE_LENGTH (TYPE) > 4 ? 8 : 4) - TYPE_LENGTH (TYPE)), \
 142           TYPE_LENGTH (TYPE))
 143
 144 /* mvs_check  STORE_RETURN_VALUE */
 145 #define STORE_RETURN_VALUE(TYPE, VALBUF) \
 146   write_register_bytes(REGISTER_BYTE (V0_REGNUM) + \
 147                        ((TYPE_LENGTH (TYPE) > 4 ? 8:4) - TYPE_LENGTH (TYPE)),\
 148                        (VALBUF), TYPE_LENGTH (TYPE));
 149
 150 /* mvs_check  EXTRACT_STRUCT_VALUE_ADDRESS */
 151 #define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
 152   (extract_address (REGBUF + REGISTER_BYTE (V0_REGNUM), \
 153                     REGISTER_RAW_SIZE (V0_REGNUM)))
 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 extern struct frame_info *m32r_pop_frame PARAMS ((struct frame_info *frame));
 170 /* mvs_check  POP_FRAME */
 171 #define POP_FRAME m32r_pop_frame (get_current_frame ())
 172
 173 /* mvs_no_check  CALL_DUMMY */
 174 /* #define CALL_DUMMY { 0 } */
 175
 176 /* mvs_no_check  CALL_DUMMY_START_OFFSET */
 177 #define CALL_DUMMY_START_OFFSET (0)
 178
 179 /* mvs_no_check  CALL_DUMMY_BREAKPOINT_OFFSET */
 180 #define CALL_DUMMY_BREAKPOINT_OFFSET (0)
 181
 182 extern void m32r_push_dummy_frame PARAMS ((void));
 183 /* mvs_no_check  PUSH_DUMMY_FRAME */
 184 #define PUSH_DUMMY_FRAME m32r_push_dummy_frame ()
 185
 186 /* mvs_no_check  FIX_CALL_DUMMY */
 187 #define FIX_CALL_DUMMY(DUMMY1, START_SP, FUNADDR, NARGS, \
 188                        ARGS, VALUE_TYPE, USING_GCC)
 189
 190 /* mvs_no_check  CALL_DUMMY_LOCATION_AT_ENTRY_POINT */
 191 #define CALL_DUMMY_LOCATION AT_ENTRY_POINT
 192
 193 /* mvs_no_check  STACK_ALIGN */
 194 #define STACK_ALIGN(x) ((x + 3) & ~3)
 195
 196 extern CORE_ADDR
 197 m32r_push_arguments PARAMS ((int nargs, struct value **args, CORE_ADDR sp,
 198                              unsigned char struct_return,
 199                              CORE_ADDR struct_addr));
 200 /* mvs_no_check  PUSH_ARGUMENTS */
 201 #define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
 202   (SP) = m32r_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR)
 203
 204 /* mvs_no_check  STORE_STRUCT_RETURN */
 205 #define STORE_STRUCT_RETURN(STRUCT_ADDR, SP)
 206
 207 /* mvs_no_check  CALL_DUMMY_ADDRESS */
 208 #define CALL_DUMMY_ADDRESS() (entry_point_address ())
 209
 210 extern int m32r_pc_in_call_dummy PARAMS ((CORE_ADDR pc));
 211 /* mvs_no_check  PC_IN_CALL_DUMMY */
 212 #define PC_IN_CALL_DUMMY(PC, SP, FP) m32r_pc_in_call_dummy (PC)
 213
 214 /* mvs_check  USE_STRUCT_CONVENTION */
 215 #define USE_STRUCT_CONVENTION(GCC_P, TYPE) \
 216         (TYPE_LENGTH (TYPE) > 8)