1 /* Parameters for execution on a Matsushita mn10300 processor.
2 Copyright 1996, 1997 Free Software Foundation, Inc.
4 Contributed by Geoffrey Noer <noer@cygnus.com>
6 This file is part of GDB.
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.
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.
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. */
23 /* The mn10300 is little endian. */
24 #define TARGET_BYTE_ORDER_DEFAULT LITTLE_ENDIAN
26 /* All registers are 32bits (phew!). */
27 #define REGISTER_SIZE 4
28 #define MAX_REGISTER_RAW_SIZE 4
31 #define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int
33 #define REGISTER_BYTE(REG) ((REG) * 4)
34 #define REGISTER_VIRTUAL_SIZE(REG) 4
35 #define REGISTER_RAW_SIZE(REG) 4
37 #define MAX_REGISTER_VIRTUAL_SIZE 4
39 #define REGISTER_BYTES (NUM_REGS * REGISTER_SIZE)
41 extern char *mn10300_register_name (int regnr
);
42 #define REGISTER_NAME(i) (mn10300_register_name (i))
56 /* Pseudo register that contains true address of executing stack frame */
59 /* BREAKPOINT_FROM_PC uses the program counter value to determine the
60 breakpoint that should be used */
61 extern breakpoint_from_pc_fn mn10300_breakpoint_from_pc
;
62 #define BREAKPOINT_FROM_PC(pcptr, lenptr) mn10300_breakpoint_from_pc (pcptr, lenptr)
64 #define FUNCTION_START_OFFSET 0
66 #define DECR_PC_AFTER_BREAK 0
68 #define INNER_THAN(lhs,rhs) ((lhs) < (rhs))
70 extern CORE_ADDR
mn10300_saved_pc_after_call (struct frame_info
*frame
);
71 #define SAVED_PC_AFTER_CALL(frame) \
72 mn10300_saved_pc_after_call (frame)
78 extern void mn10300_init_extra_frame_info (struct frame_info
*);
79 #define INIT_EXTRA_FRAME_INFO(fromleaf, fi) mn10300_init_extra_frame_info (fi)
80 #define INIT_FRAME_PC /* Not necessary */
82 #define FRAME_INIT_SAVED_REGS(fi) /* handled by init_extra_frame_info */
84 extern CORE_ADDR
mn10300_frame_chain (struct frame_info
*);
85 #define FRAME_CHAIN(fi) mn10300_frame_chain (fi)
86 #define FRAME_CHAIN_VALID(FP, FI) generic_file_frame_chain_valid (FP, FI)
88 extern CORE_ADDR
mn10300_find_callers_reg (struct frame_info
*, int);
89 extern CORE_ADDR
mn10300_frame_saved_pc (struct frame_info
*);
90 #define FRAME_SAVED_PC(FI) (mn10300_frame_saved_pc (FI))
92 /* Extract from an array REGBUF containing the (raw) register state
93 a function return value of type TYPE, and copy that, in virtual format,
96 extern void mn10300_extract_return_value (struct type
*type
, char *regbuf
,
98 #define EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \
99 mn10300_extract_return_value (TYPE, REGBUF, VALBUF)
101 CORE_ADDR
mn10300_extract_struct_value_address (char *regbuf
);
102 #define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
103 mn10300_extract_struct_value_address (REGBUF)
105 void mn10300_store_return_value (struct type
*type
, char *valbuf
);
106 #define STORE_RETURN_VALUE(TYPE, VALBUF) \
107 mn10300_store_return_value (TYPE, VALBUF)
110 extern CORE_ADDR
mn10300_store_struct_return (CORE_ADDR addr
, CORE_ADDR sp
);
111 #define STORE_STRUCT_RETURN(STRUCT_ADDR, SP) \
112 (mn10300_store_struct_return (STRUCT_ADDR, SP))
114 extern CORE_ADDR
mn10300_skip_prologue (CORE_ADDR
);
115 #define SKIP_PROLOGUE(pc) (mn10300_skip_prologue (pc))
117 #define FRAME_ARGS_SKIP 0
119 #define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
120 #define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
121 #define FRAME_NUM_ARGS(fi) (-1)
123 extern void mn10300_pop_frame (struct frame_info
*);
124 #define POP_FRAME mn10300_pop_frame (get_current_frame ())
126 #define USE_GENERIC_DUMMY_FRAMES 1
127 #define CALL_DUMMY {0}
128 #define CALL_DUMMY_START_OFFSET (0)
129 #define CALL_DUMMY_BREAKPOINT_OFFSET (0)
130 #define CALL_DUMMY_LOCATION AT_ENTRY_POINT
131 #define FIX_CALL_DUMMY(DUMMY, START, FUNADDR, NARGS, ARGS, TYPE, GCCP)
132 #define CALL_DUMMY_ADDRESS() entry_point_address ()
134 #define TARGET_READ_FP() read_sp ()
136 extern CORE_ADDR
mn10300_push_return_address (CORE_ADDR
, CORE_ADDR
);
137 #define PUSH_RETURN_ADDRESS(PC, SP) mn10300_push_return_address (PC, SP)
139 #define PUSH_DUMMY_FRAME generic_push_dummy_frame ()
140 #define SAVE_DUMMY_FRAME_TOS(SP) generic_save_dummy_frame_tos (SP)
143 mn10300_push_arguments (int, struct value
**, CORE_ADDR
,
144 unsigned char, CORE_ADDR
);
145 #define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
146 (mn10300_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR))
148 #define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP, FP)
150 #define REG_STRUCT_HAS_ADDR(gcc_p,TYPE) \
151 (TYPE_LENGTH (TYPE) > 8)
153 extern use_struct_convention_fn mn10300_use_struct_convention
;
154 #define USE_STRUCT_CONVENTION(GCC_P, TYPE) mn10300_use_struct_convention (GCC_P, TYPE)
156 /* override the default get_saved_register function with
157 one that takes account of generic CALL_DUMMY frames */
158 #define GET_SAVED_REGISTER(raw_buffer, optimized, addrp, frame, regnum, lval) \
159 generic_get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
161 /* Cons up virtual frame pointer for trace */
162 extern void mn10300_virtual_frame_pointer (CORE_ADDR
, long *, long *);
163 #define TARGET_VIRTUAL_FRAME_POINTER(PC, REGP, OFFP) \
164 mn10300_virtual_frame_pointer ((PC), (REGP), (OFFP))