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 65
  24
  25 #define REGISTER_NAMES \
  26 { "r0", "r1", "r2", "sp", "gp", "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", "ep", "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   "pc" }
  36
  37 #define REGISTER_BYTES (NUM_REGS * 4)
  38
  39 #define REGISTER_SIZE 4
  40 #define MAX_REGISTER_RAW_SIZE 4
  41
  42 #define SP_REGNUM 3
  43 #define FP_REGNUM 2
  44 #define V0_REGNUM 10
  45 #define V1_REGNUM 11
  46 #define RP_REGNUM 31
  47 #define PC_REGNUM 64
  48
  49 #define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int
  50
  51 #define REGISTER_BYTE(REG) ((REG) * 4)
  52 #define REGISTER_VIRTUAL_SIZE(REG) 4
  53 #define REGISTER_RAW_SIZE(REG) 4
  54
  55 #define MAX_REGISTER_VIRTUAL_SIZE 4
  56
  57 #define BREAKPOINT {0xff, 0xff}
  58
  59 #define FUNCTION_START_OFFSET 0
  60
  61 #define DECR_PC_AFTER_BREAK 0
  62
  63 #define INNER_THAN <
  64
  65 #define SAVED_PC_AFTER_CALL(fi) read_register (RP_REGNUM)
  66
  67 #ifdef __STDC__
  68 struct frame_info;
  69 struct frame_saved_regs;
  70 struct type;
  71 struct value;
  72 #endif
  73
  74 #define EXTRA_FRAME_INFO struct frame_saved_regs fsr;
  75
  76 extern void v850_init_extra_frame_info PARAMS ((struct frame_info *fi));
  77 #define INIT_EXTRA_FRAME_INFO(fromleaf, fi) v850_init_extra_frame_info (fi)
  78 #define INIT_FRAME_PC           /* Not necessary */
  79
  80 extern void v850_frame_find_saved_regs PARAMS ((struct frame_info *fi, struct frame_saved_regs *regaddr));
  81 #define FRAME_FIND_SAVED_REGS(fi, regaddr) regaddr = fi->fsr
  82
  83 extern CORE_ADDR v850_frame_chain PARAMS ((struct frame_info *fi));
  84 #define FRAME_CHAIN(fi) v850_frame_chain (fi)
  85
  86 extern CORE_ADDR v850_find_callers_reg PARAMS ((struct frame_info *fi, int regnum));
  87 #define FRAME_SAVED_PC(fi) (v850_find_callers_reg (fi, RP_REGNUM))
  88
  89 #define EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \
  90   memcpy (VALBUF, REGBUF + REGISTER_BYTE (V0_REGNUM), TYPE_LENGTH (TYPE))
  91
  92 #define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
  93   (extract_address (REGBUF + REGISTER_BYTE (V0_REGNUM), \
  94                     REGISTER_RAW_SIZE (V0_REGNUM)))
  95
  96 #define STORE_RETURN_VALUE(TYPE, VALBUF) \
  97   write_register_bytes(REGISTER_BYTE (V0_REGNUM), VALBUF, TYPE_LENGTH (TYPE));
  98
  99 extern CORE_ADDR v850_skip_prologue PARAMS ((CORE_ADDR pc));
 100 #define SKIP_PROLOGUE(pc) pc = v850_skip_prologue (pc)
 101
 102 #define FRAME_ARGS_SKIP 0
 103
 104 #define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
 105 #define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
 106 #define FRAME_NUM_ARGS(val, fi) ((val) = -1)
 107
 108 extern struct frame_info *v850_pop_frame PARAMS ((struct frame_info *frame));
 109 #define POP_FRAME v850_pop_frame (get_current_frame ())
 110
 111 #define CALL_DUMMY { 0 }
 112
 113 #define CALL_DUMMY_START_OFFSET (0)
 114
 115 #define CALL_DUMMY_BREAKPOINT_OFFSET (0)
 116
 117 extern void v850_push_dummy_frame PARAMS ((void));
 118 #define PUSH_DUMMY_FRAME v850_push_dummy_frame ()
 119
 120 #define FIX_CALL_DUMMY(DUMMY1, START_SP, FUNADDR, NARGS, ARGS, VALUE_TYPE, USING_GCC)
 121
 122 #define CALL_DUMMY_LOCATION AT_ENTRY_POINT
 123
 124 #define STACK_ALIGN(x) ((x + 3) & ~3)
 125
 126 extern CORE_ADDR
 127 v850_push_arguments PARAMS ((int nargs, struct value **args, CORE_ADDR sp,
 128                              unsigned char struct_return,
 129                              CORE_ADDR struct_addr));
 130 #define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
 131   (SP) = v850_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR)
 132
 133 #define STORE_STRUCT_RETURN(STRUCT_ADDR, SP)
 134
 135 #define CALL_DUMMY_ADDRESS() (entry_point_address ())
 136
 137 extern int v850_pc_in_call_dummy PARAMS ((CORE_ADDR pc));
 138 #define PC_IN_CALL_DUMMY(PC, SP, FP) v850_pc_in_call_dummy (PC)
 139
 140 #define USE_STRUCT_CONVENTION(GCC_P, TYPE) \
 141         (TYPE_NFIELDS (TYPE) > 1 || TYPE_LENGTH (TYPE) > 4)