gdb/config/mn10300/tm-mn10300.h

   1 /* Parameters for execution on a Matsushita mn10300 processor.
   2    Copyright 1996, 1997 Free Software Foundation, Inc.
   3
   4    Contributed by Geoffrey Noer <noer@cygnus.com>
   5
   6    This file is part of GDB.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 59 Temple Place - Suite 330,
  21    Boston, MA 02111-1307, USA.  */
  22
  23 /* The mn10300 is little endian.  */
  24 #define TARGET_BYTE_ORDER_DEFAULT LITTLE_ENDIAN
  25
  26 /* All registers are 32bits (phew!).  */
  27 #define REGISTER_SIZE 4
  28 #define MAX_REGISTER_RAW_SIZE 4
  29 #define NUM_REGS 32
  30
  31 #define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int
  32
  33 #define REGISTER_BYTE(REG) ((REG) * 4)
  34 #define REGISTER_VIRTUAL_SIZE(REG) 4
  35 #define REGISTER_RAW_SIZE(REG) 4
  36
  37 #define MAX_REGISTER_VIRTUAL_SIZE 4
  38
  39 #define REGISTER_BYTES (NUM_REGS * REGISTER_SIZE)
  40
  41 extern char *mn10300_register_name PARAMS ((int regnr));
  42 #define REGISTER_NAME(i) (mn10300_register_name (i))
  43
  44 #define D2_REGNUM 2
  45 #define D3_REGNUM 3
  46 #define A2_REGNUM 6
  47 #define A3_REGNUM 7
  48 #define SP_REGNUM 8
  49 #define PC_REGNUM 9
  50 #define MDR_REGNUM 10
  51 #define PSW_REGNUM 11
  52 #define LIR_REGNUM 12
  53 #define LAR_REGNUM 13
  54
  55 /* Pseudo register that contains true address of executing stack frame */
  56 #define FP_REGNUM 31
  57
  58 /* BREAKPOINT_FROM_PC uses the program counter value to determine the
  59    breakpoint that should be used */
  60 extern breakpoint_from_pc_fn mn10300_breakpoint_from_pc;
  61 #define BREAKPOINT_FROM_PC(pcptr, lenptr) mn10300_breakpoint_from_pc (pcptr, lenptr)
  62
  63 #define FUNCTION_START_OFFSET 0
  64
  65 #define DECR_PC_AFTER_BREAK 0
  66
  67 #define INNER_THAN(lhs,rhs) ((lhs) < (rhs))
  68
  69 extern CORE_ADDR mn10300_saved_pc_after_call PARAMS ((struct frame_info * frame));
  70 #define SAVED_PC_AFTER_CALL(frame) \
  71   mn10300_saved_pc_after_call (frame)
  72
  73 #ifdef __STDC__
  74 struct frame_info;
  75 struct type;
  76 struct value;
  77 #endif
  78
  79 extern void mn10300_init_extra_frame_info PARAMS ((struct frame_info *));
  80 #define INIT_EXTRA_FRAME_INFO(fromleaf, fi) mn10300_init_extra_frame_info (fi)
  81 #define INIT_FRAME_PC           /* Not necessary */
  82
  83 #define FRAME_INIT_SAVED_REGS(fi)       /* handled by init_extra_frame_info */
  84
  85 extern CORE_ADDR mn10300_frame_chain PARAMS ((struct frame_info *));
  86 #define FRAME_CHAIN(fi) mn10300_frame_chain (fi)
  87 #define FRAME_CHAIN_VALID(FP, FI)       generic_frame_chain_valid (FP, FI)
  88
  89 extern CORE_ADDR mn10300_find_callers_reg PARAMS ((struct frame_info *, int));
  90 extern CORE_ADDR mn10300_frame_saved_pc PARAMS ((struct frame_info *));
  91 #define FRAME_SAVED_PC(FI) (mn10300_frame_saved_pc (FI))
  92
  93 /* Extract from an array REGBUF containing the (raw) register state
  94    a function return value of type TYPE, and copy that, in virtual format,
  95    into VALBUF. */
  96
  97 extern void mn10300_extract_return_value PARAMS ((struct type * type, char *regbuf, char *valbuf));
  98 #define EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \
  99   mn10300_extract_return_value (TYPE, REGBUF, VALBUF)
 100
 101 CORE_ADDR mn10300_extract_struct_value_address PARAMS ((char *regbuf));
 102 #define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
 103   mn10300_extract_struct_value_address (REGBUF)
 104
 105 void mn10300_store_return_value PARAMS ((struct type * type, char *valbuf));
 106 #define STORE_RETURN_VALUE(TYPE, VALBUF) \
 107   mn10300_store_return_value (TYPE, VALBUF)
 108
 109 #define STORE_STRUCT_RETURN(STRUCT_ADDR, SP) \
 110   (mn10300_store_struct_return (STRUCT_ADDR, SP))
 111
 112 extern CORE_ADDR mn10300_skip_prologue PARAMS ((CORE_ADDR));
 113 #define SKIP_PROLOGUE(pc) (mn10300_skip_prologue (pc))
 114
 115 #define FRAME_ARGS_SKIP 0
 116
 117 #define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
 118 #define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
 119 #define FRAME_NUM_ARGS(fi) (-1)
 120
 121 extern void mn10300_pop_frame PARAMS ((struct frame_info *));
 122 #define POP_FRAME mn10300_pop_frame (get_current_frame ())
 123
 124 #define USE_GENERIC_DUMMY_FRAMES 1
 125 #define CALL_DUMMY                   {0}
 126 #define CALL_DUMMY_START_OFFSET      (0)
 127 #define CALL_DUMMY_BREAKPOINT_OFFSET (0)
 128 #define CALL_DUMMY_LOCATION          AT_ENTRY_POINT
 129 #define FIX_CALL_DUMMY(DUMMY, START, FUNADDR, NARGS, ARGS, TYPE, GCCP)
 130 #define CALL_DUMMY_ADDRESS()         entry_point_address ()
 131
 132 #define TARGET_READ_FP() read_sp ()
 133
 134 extern CORE_ADDR mn10300_push_return_address PARAMS ((CORE_ADDR, CORE_ADDR));
 135 #define PUSH_RETURN_ADDRESS(PC, SP)  mn10300_push_return_address (PC, SP)
 136
 137 #define PUSH_DUMMY_FRAME        generic_push_dummy_frame ()
 138 #define SAVE_DUMMY_FRAME_TOS(SP) generic_save_dummy_frame_tos (SP)
 139
 140 extern CORE_ADDR
 141   mn10300_push_arguments PARAMS ((int, struct value **, CORE_ADDR,
 142                                   unsigned char, CORE_ADDR));
 143 #define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
 144   (mn10300_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR))
 145
 146 #define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP, FP)
 147
 148 #define REG_STRUCT_HAS_ADDR(gcc_p,TYPE) \
 149         (TYPE_LENGTH (TYPE) > 8)
 150
 151 extern use_struct_convention_fn mn10300_use_struct_convention;
 152 #define USE_STRUCT_CONVENTION(GCC_P, TYPE) mn10300_use_struct_convention (GCC_P, TYPE)
 153
 154 /* override the default get_saved_register function with
 155    one that takes account of generic CALL_DUMMY frames */
 156 #define GET_SAVED_REGISTER(raw_buffer, optimized, addrp, frame, regnum, lval) \
 157     generic_get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
 158
 159 /* Cons up virtual frame pointer for trace */
 160 extern void mn10300_virtual_frame_pointer PARAMS ((CORE_ADDR, long *, long *));
 161 #define TARGET_VIRTUAL_FRAME_POINTER(PC, REGP, OFFP) \
 162         mn10300_virtual_frame_pointer ((PC), (REGP), (OFFP))