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 /* Initializer for an array of names of registers.
  39    Entries beyond the first NUM_REGS are ignored.  */
  40
  41 extern char **v850_register_names;
  42 #define REGISTER_NAME(i) v850_register_names[i]
  43
  44
  45 #define REGISTER_BYTES (NUM_REGS * 4)
  46
  47 #define REGISTER_SIZE 4
  48 #define MAX_REGISTER_RAW_SIZE 4
  49
  50 #define R0_REGNUM 0
  51 #define R1_REGNUM 1
  52 #define SAVE1_START_REGNUM 2
  53 #define SAVE1_END_REGNUM 2
  54 #define SP_REGNUM 3
  55 #define ARG0_REGNUM 6
  56 #define ARGLAST_REGNUM 9
  57 #define V0_REGNUM 10
  58 #define V1_REGNUM 11
  59 #define R12_REGNUM 12
  60 #define SAVE2_START_REGNUM 20
  61 #define SAVE2_END_REGNUM 29
  62 #define EP_REGNUM 30
  63 #define SAVE3_START_REGNUM 31
  64 #define SAVE3_END_REGNUM 31
  65 #define RP_REGNUM 31
  66 #define SR0_REGNUM 32
  67 #define PS_REGNUM (SR0_REGNUM+5)
  68 #define CTBP_REGNUM (SR0_REGNUM+20)
  69 #define PC_REGNUM 64
  70 #define FP_REGNUM 65
  71 #define FP_RAW_REGNUM 29
  72
  73 #define TARGET_READ_FP() read_register (FP_RAW_REGNUM)
  74 #define TARGET_WRITE_FP(VAL) write_register (FP_REGNUM, (VAL))
  75
  76 #define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int
  77
  78 #define REGISTER_BYTE(REG) ((REG) * 4)
  79 #define REGISTER_VIRTUAL_SIZE(REG) 4
  80 #define REGISTER_RAW_SIZE(REG) 4
  81
  82 #define MAX_REGISTER_VIRTUAL_SIZE 4
  83
  84 #define BREAKPOINT {0x40, 0xF8} /* little-ended */
  85
  86 #define FUNCTION_START_OFFSET 0
  87
  88 #define DECR_PC_AFTER_BREAK 0
  89
  90 #define INNER_THAN(lhs,rhs) ((lhs) < (rhs))
  91
  92 #define SAVED_PC_AFTER_CALL(fi) read_register (RP_REGNUM)
  93
  94 #ifdef __STDC__
  95 struct frame_info;
  96 struct frame_saved_regs;
  97 struct type;
  98 struct value;
  99 #endif
 100
 101 #define EXTRA_FRAME_INFO struct frame_saved_regs fsr;
 102
 103 extern void v850_init_extra_frame_info PARAMS ((struct frame_info *fi));
 104 #define INIT_EXTRA_FRAME_INFO(fromleaf, fi) v850_init_extra_frame_info (fi)
 105 #define INIT_FRAME_PC           /* Not necessary */
 106
 107 extern void v850_frame_find_saved_regs PARAMS ((struct frame_info *fi, struct frame_saved_regs *regaddr));
 108 #define FRAME_FIND_SAVED_REGS(fi, regaddr) regaddr = fi->fsr
 109
 110 extern CORE_ADDR v850_frame_chain PARAMS ((struct frame_info *fi));
 111 #define FRAME_CHAIN(fi) v850_frame_chain (fi)
 112 #define FRAME_CHAIN_VALID(FP, FI)       generic_frame_chain_valid (FP, FI)
 113
 114 extern CORE_ADDR v850_find_callers_reg PARAMS ((struct frame_info *fi, int regnum));
 115 extern CORE_ADDR v850_frame_saved_pc   PARAMS ((struct frame_info *));
 116 #define FRAME_SAVED_PC(FI) (v850_frame_saved_pc (FI))
 117
 118 #define EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \
 119   memcpy (VALBUF, REGBUF + REGISTER_BYTE (V0_REGNUM), TYPE_LENGTH (TYPE))
 120
 121 #define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
 122   extract_address (REGBUF + REGISTER_BYTE (V0_REGNUM), \
 123                    REGISTER_RAW_SIZE (V0_REGNUM))
 124
 125 #define STORE_RETURN_VALUE(TYPE, VALBUF) \
 126   write_register_bytes(REGISTER_BYTE (V0_REGNUM), VALBUF, TYPE_LENGTH (TYPE));
 127
 128 extern CORE_ADDR v850_skip_prologue PARAMS ((CORE_ADDR pc));
 129 #define SKIP_PROLOGUE(pc) pc = v850_skip_prologue (pc)
 130
 131 #define FRAME_ARGS_SKIP 0
 132
 133 #define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
 134 #define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
 135 #define FRAME_NUM_ARGS(val, fi) ((val) = -1)
 136
 137 extern void v850_pop_frame PARAMS ((struct frame_info *frame));
 138 #define POP_FRAME v850_pop_frame (get_current_frame ())
 139
 140 #define USE_GENERIC_DUMMY_FRAMES
 141 #define CALL_DUMMY                   {0}
 142 #define CALL_DUMMY_START_OFFSET      (0)
 143 #define CALL_DUMMY_BREAKPOINT_OFFSET (0)
 144 #define CALL_DUMMY_LOCATION          AT_ENTRY_POINT
 145 #define FIX_CALL_DUMMY(DUMMY, START, FUNADDR, NARGS, ARGS, TYPE, GCCP)
 146 #define CALL_DUMMY_ADDRESS()         entry_point_address ()
 147 extern CORE_ADDR v850_push_return_address PARAMS ((CORE_ADDR, CORE_ADDR));
 148 #define PUSH_RETURN_ADDRESS(PC, SP)  v850_push_return_address (PC, SP)
 149
 150
 151 #define PUSH_DUMMY_FRAME        generic_push_dummy_frame ()
 152
 153 extern CORE_ADDR
 154 v850_push_arguments PARAMS ((int nargs, struct value **args, CORE_ADDR sp,
 155                              unsigned char struct_return,
 156                              CORE_ADDR struct_addr));
 157 #define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
 158   (SP) = v850_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR)
 159
 160 #define STORE_STRUCT_RETURN(STRUCT_ADDR, SP)
 161
 162
 163 #define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP)
 164
 165 extern use_struct_convention_fn v850_use_struct_convention;
 166 #define USE_STRUCT_CONVENTION(GCC_P, TYPE) v850_use_struct_convention (GCC_P, TYPE);
 167
 168 /* override the default get_saved_register function with
 169    one that takes account of generic CALL_DUMMY frames */
 170 #define GET_SAVED_REGISTER
 171
 172 /* Define this for Wingdb */
 173
 174 #define TARGET_V850