gdb/config/v850/tm-v850.h

   1 /* Parameters for execution on an NEC V850 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 #define TARGET_BYTE_ORDER LITTLE_ENDIAN
  22
  23 #define NUM_REGS 66
  24
  25 #define REGISTER_NAMES \
  26 { "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \
  27   "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", \
  28   "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", \
  29   "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", \
  30     \
  31   "eipc", "eipsw", "fepc", "fepsw", "ecr", "psw", "sr6", "sr7", \
  32   "sr8", "sr9", "sr10", "sr11", "sr12", "sr13", "sr14", "sr15", \
  33   "sr16", "sr17", "sr18", "sr19", "sr20", "sr21", "sr22", "sr23", \
  34   "sr24", "sr25", "sr26", "sr27", "sr28", "sr29", "sr30", "sr31", \
  35     \
  36   "pc", "fp" }
  37
  38 #define REGISTER_BYTES (NUM_REGS * 4)
  39
  40 #define REGISTER_SIZE 4
  41 #define MAX_REGISTER_RAW_SIZE 4
  42
  43 #define R0_REGNUM 0
  44 #define R1_REGNUM 1
  45 #define SAVE1_START_REGNUM 2
  46 #define SAVE1_END_REGNUM 2
  47 #define SP_REGNUM 3
  48 #define ARG0_REGNUM 6
  49 #define ARGLAST_REGNUM 9
  50 #define V0_REGNUM 10
  51 #define V1_REGNUM 11
  52 #define R12_REGNUM 12
  53 #define SAVE2_START_REGNUM 20
  54 #define SAVE2_END_REGNUM 29
  55 #define EP_REGNUM 30
  56 #define SAVE3_START_REGNUM 31
  57 #define SAVE3_END_REGNUM 31
  58 #define RP_REGNUM 31
  59 #define PS_REGNUM 37
  60 #define PC_REGNUM 64
  61 #define FP_REGNUM 65
  62 #define FP_RAW_REGNUM 29
  63
  64 #define TARGET_READ_FP() read_register (FP_RAW_REGNUM)
  65 #define TARGET_WRITE_FP(VAL) write_register (FP_REGNUM, (VAL))
  66
  67 #define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int
  68
  69 #define REGISTER_BYTE(REG) ((REG) * 4)
  70 #define REGISTER_VIRTUAL_SIZE(REG) 4
  71 #define REGISTER_RAW_SIZE(REG) 4
  72
  73 #define MAX_REGISTER_VIRTUAL_SIZE 4
  74
  75 #define BREAKPOINT {0x40, 0xF8} /* little-ended */
  76
  77 #define FUNCTION_START_OFFSET 0
  78
  79 #define DECR_PC_AFTER_BREAK 0
  80
  81 #define INNER_THAN <
  82
  83 #define SAVED_PC_AFTER_CALL(fi) read_register (RP_REGNUM)
  84
  85 #ifdef __STDC__
  86 struct frame_info;
  87 struct frame_saved_regs;
  88 struct type;
  89 struct value;
  90 #endif
  91
  92 #define EXTRA_FRAME_INFO struct frame_saved_regs fsr;
  93
  94 extern void v850_init_extra_frame_info PARAMS ((struct frame_info *fi));
  95 #define INIT_EXTRA_FRAME_INFO(fromleaf, fi) v850_init_extra_frame_info (fi)
  96 #define INIT_FRAME_PC           /* Not necessary */
  97
  98 extern void v850_frame_find_saved_regs PARAMS ((struct frame_info *fi, struct frame_saved_regs *regaddr));
  99 #define FRAME_FIND_SAVED_REGS(fi, regaddr) regaddr = fi->fsr
 100
 101 extern CORE_ADDR v850_frame_chain PARAMS ((struct frame_info *fi));
 102 #define FRAME_CHAIN(fi) v850_frame_chain (fi)
 103 #define FRAME_CHAIN_VALID(FP, FI)       generic_frame_chain_valid (FP, FI)
 104
 105 extern CORE_ADDR v850_find_callers_reg PARAMS ((struct frame_info *fi, int regnum));
 106 extern CORE_ADDR v850_frame_saved_pc   PARAMS ((struct frame_info *));
 107 #define FRAME_SAVED_PC(FI) (v850_frame_saved_pc (FI))
 108
 109 #define EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \
 110   memcpy (VALBUF, REGBUF + REGISTER_BYTE (V0_REGNUM), TYPE_LENGTH (TYPE))
 111
 112 #define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
 113   extract_address (REGBUF + REGISTER_BYTE (V0_REGNUM), \
 114                    REGISTER_RAW_SIZE (V0_REGNUM))
 115
 116 #define STORE_RETURN_VALUE(TYPE, VALBUF) \
 117   write_register_bytes(REGISTER_BYTE (V0_REGNUM), VALBUF, TYPE_LENGTH (TYPE));
 118
 119 extern CORE_ADDR v850_skip_prologue PARAMS ((CORE_ADDR pc));
 120 #define SKIP_PROLOGUE(pc) pc = v850_skip_prologue (pc)
 121
 122 #define FRAME_ARGS_SKIP 0
 123
 124 #define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
 125 #define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
 126 #define FRAME_NUM_ARGS(val, fi) ((val) = -1)
 127
 128 extern void v850_pop_frame PARAMS ((struct frame_info *frame));
 129 #define POP_FRAME v850_pop_frame (get_current_frame ())
 130
 131 #define USE_GENERIC_DUMMY_FRAMES
 132 #define CALL_DUMMY                   {0}
 133 #define CALL_DUMMY_START_OFFSET      (0)
 134 #define CALL_DUMMY_BREAKPOINT_OFFSET (0)
 135 #define CALL_DUMMY_LOCATION          AT_ENTRY_POINT
 136 #define FIX_CALL_DUMMY(DUMMY, START, FUNADDR, NARGS, ARGS, TYPE, GCCP)
 137 #define CALL_DUMMY_ADDRESS()         entry_point_address ()
 138 extern CORE_ADDR v850_push_return_address PARAMS ((CORE_ADDR, CORE_ADDR));
 139 #define PUSH_RETURN_ADDRESS(PC, SP)  v850_push_return_address (PC, SP)
 140
 141
 142 #define PUSH_DUMMY_FRAME        generic_push_dummy_frame ()
 143
 144 extern CORE_ADDR
 145 v850_push_arguments PARAMS ((int nargs, struct value **args, CORE_ADDR sp,
 146                              unsigned char struct_return,
 147                              CORE_ADDR struct_addr));
 148 #define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
 149   (SP) = v850_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR)
 150
 151 #define STORE_STRUCT_RETURN(STRUCT_ADDR, SP)
 152
 153
 154 #define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP)
 155
 156 #define USE_STRUCT_CONVENTION(GCC_P, TYPE) \
 157         (TYPE_NFIELDS (TYPE) > 1 || TYPE_LENGTH (TYPE) > 4)
 158
 159 /* override the default get_saved_register function with
 160    one that takes account of generic CALL_DUMMY frames */
 161 #define GET_SAVED_REGISTER
 162
 163 /* Define this for Wingdb */
 164
 165 #define TARGET_V850