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,
  20    Boston, MA 02111-1307, USA.  */
  21
  22 #define TARGET_BYTE_ORDER LITTLE_ENDIAN
  23
  24 #define NUM_REGS 66
  25
  26 #define REGISTER_NAMES \
  27 { "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \
  28   "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", \
  29   "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", \
  30   "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", \
  31     \
  32   "eipc", "eipsw", "fepc", "fepsw", "ecr", "psw", "sr6", "sr7", \
  33   "sr8", "sr9", "sr10", "sr11", "sr12", "sr13", "sr14", "sr15", \
  34   "sr16", "sr17", "sr18", "sr19", "sr20", "sr21", "sr22", "sr23", \
  35   "sr24", "sr25", "sr26", "sr27", "sr28", "sr29", "sr30", "sr31", \
  36     \
  37   "pc", "fp" }
  38
  39 /* Initializer for an array of names of registers.
  40    Entries beyond the first NUM_REGS are ignored.  */
  41
  42 extern char **v850_register_names;
  43 #define REGISTER_NAME(i) v850_register_names[i]
  44
  45
  46 #define REGISTER_BYTES (NUM_REGS * 4)
  47
  48 #define REGISTER_SIZE 4
  49 #define MAX_REGISTER_RAW_SIZE 4
  50
  51 #define R0_REGNUM 0
  52 #define R1_REGNUM 1
  53 #define SAVE1_START_REGNUM 2
  54 #define SAVE1_END_REGNUM 2
  55 #define SP_REGNUM 3
  56 #define ARG0_REGNUM 6
  57 #define ARGLAST_REGNUM 9
  58 #define V0_REGNUM 10
  59 #define V1_REGNUM 11
  60 #define R12_REGNUM 12
  61 #define SAVE2_START_REGNUM 20
  62 #define SAVE2_END_REGNUM 29
  63 #define EP_REGNUM 30
  64 #define SAVE3_START_REGNUM 31
  65 #define SAVE3_END_REGNUM 31
  66 #define RP_REGNUM 31
  67 #define SR0_REGNUM 32
  68 #define PS_REGNUM (SR0_REGNUM+5)
  69 #define CTBP_REGNUM (SR0_REGNUM+20)
  70 #define PC_REGNUM 64
  71 #define FP_REGNUM 65
  72 #define FP_RAW_REGNUM 29
  73
  74 #define TARGET_READ_FP() read_register (FP_RAW_REGNUM)
  75 #define TARGET_WRITE_FP(VAL) write_register (FP_REGNUM, (VAL))
  76
  77 #define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int
  78
  79 #define REGISTER_BYTE(REG) ((REG) * 4)
  80 #define REGISTER_VIRTUAL_SIZE(REG) 4
  81 #define REGISTER_RAW_SIZE(REG) 4
  82
  83 #define MAX_REGISTER_VIRTUAL_SIZE 4
  84
  85 #define BREAKPOINT {0x40, 0xF8} /* little-ended */
  86
  87 #define FUNCTION_START_OFFSET 0
  88
  89 #define DECR_PC_AFTER_BREAK 0
  90
  91 #define INNER_THAN(lhs,rhs) ((lhs) < (rhs))
  92
  93 #define SAVED_PC_AFTER_CALL(fi) read_register (RP_REGNUM)
  94
  95 struct frame_info;
  96 struct frame_saved_regs;
  97 struct type;
  98 struct value;
  99
 100 #define EXTRA_FRAME_INFO struct frame_saved_regs fsr;
 101
 102 extern void v850_init_extra_frame_info PARAMS ((struct frame_info * fi));
 103 #define INIT_EXTRA_FRAME_INFO(fromleaf, fi) v850_init_extra_frame_info (fi)
 104 #define INIT_FRAME_PC           /* Not necessary */
 105
 106 extern void v850_frame_find_saved_regs PARAMS ((struct frame_info * fi, struct frame_saved_regs * regaddr));
 107 #define FRAME_FIND_SAVED_REGS(fi, regaddr) regaddr = fi->fsr
 108
 109 extern CORE_ADDR v850_frame_chain PARAMS ((struct frame_info * fi));
 110 #define FRAME_CHAIN(fi) v850_frame_chain (fi)
 111 #define FRAME_CHAIN_VALID(FP, FI)       generic_file_frame_chain_valid (FP, FI)
 112
 113 extern CORE_ADDR v850_find_callers_reg PARAMS ((struct frame_info * fi, int regnum));
 114 extern CORE_ADDR v850_frame_saved_pc PARAMS ((struct frame_info *));
 115 #define FRAME_SAVED_PC(FI) (v850_frame_saved_pc (FI))
 116
 117 #define EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \
 118   memcpy (VALBUF, REGBUF + REGISTER_BYTE (V0_REGNUM), TYPE_LENGTH (TYPE))
 119
 120 #define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
 121   extract_address (REGBUF + REGISTER_BYTE (V0_REGNUM), \
 122                    REGISTER_RAW_SIZE (V0_REGNUM))
 123
 124 #define STORE_RETURN_VALUE(TYPE, VALBUF) \
 125   write_register_bytes(REGISTER_BYTE (V0_REGNUM), VALBUF, TYPE_LENGTH (TYPE));
 126
 127 extern CORE_ADDR v850_skip_prologue PARAMS ((CORE_ADDR pc));
 128 #define SKIP_PROLOGUE(pc) (v850_skip_prologue (pc))
 129
 130 #define FRAME_ARGS_SKIP 0
 131
 132 #define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
 133 #define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
 134 #define FRAME_NUM_ARGS(fi) (-1)
 135
 136 extern void v850_pop_frame PARAMS ((struct frame_info * frame));
 137 #define POP_FRAME v850_pop_frame (get_current_frame ())
 138
 139 #define USE_GENERIC_DUMMY_FRAMES 1
 140 #define CALL_DUMMY                   {0}
 141 #define CALL_DUMMY_START_OFFSET      (0)
 142 #define CALL_DUMMY_BREAKPOINT_OFFSET (0)
 143 #define CALL_DUMMY_LOCATION          AT_ENTRY_POINT
 144 #define FIX_CALL_DUMMY(DUMMY, START, FUNADDR, NARGS, ARGS, TYPE, GCCP)
 145 #define CALL_DUMMY_ADDRESS()         entry_point_address ()
 146 extern CORE_ADDR v850_push_return_address PARAMS ((CORE_ADDR, CORE_ADDR));
 147 #define PUSH_RETURN_ADDRESS(PC, SP)  v850_push_return_address (PC, SP)
 148
 149
 150 #define PUSH_DUMMY_FRAME        generic_push_dummy_frame ()
 151
 152 extern CORE_ADDR
 153   v850_push_arguments PARAMS ((int nargs, struct value ** args, CORE_ADDR sp,
 154                                unsigned char struct_return,
 155                                CORE_ADDR struct_addr));
 156 #define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
 157   (v850_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR))
 158
 159 #define STORE_STRUCT_RETURN(STRUCT_ADDR, SP)
 160
 161
 162 #define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP, FP)
 163
 164 extern use_struct_convention_fn v850_use_struct_convention;
 165 #define USE_STRUCT_CONVENTION(GCC_P, TYPE) v850_use_struct_convention (GCC_P, TYPE);
 166
 167 /* override the default get_saved_register function with
 168    one that takes account of generic CALL_DUMMY frames */
 169 #define GET_SAVED_REGISTER(raw_buffer, optimized, addrp, frame, regnum, lval) \
 170       generic_get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
 171
 172 /* Define this for Wingdb */
 173
 174 #define TARGET_V850