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
PARAMS ((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
PARAMS ((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
PARAMS ((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
PARAMS ((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
PARAMS ((struct frame_info
*, int));
89 extern CORE_ADDR mn10300_frame_saved_pc
PARAMS ((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
PARAMS ((struct type
* type
, char *regbuf
, char *valbuf
));
97 #define EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \
98 mn10300_extract_return_value (TYPE, REGBUF, VALBUF)
100 CORE_ADDR mn10300_extract_struct_value_address
PARAMS ((char *regbuf
));
101 #define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
102 mn10300_extract_struct_value_address (REGBUF)
104 void mn10300_store_return_value
PARAMS ((struct type
* type
, char *valbuf
));
105 #define STORE_RETURN_VALUE(TYPE, VALBUF) \
106 mn10300_store_return_value (TYPE, VALBUF)
109 extern CORE_ADDR
mn10300_store_struct_return (CORE_ADDR addr
, CORE_ADDR sp
);
110 #define STORE_STRUCT_RETURN(STRUCT_ADDR, SP) \
111 (mn10300_store_struct_return (STRUCT_ADDR, SP))
113 extern CORE_ADDR mn10300_skip_prologue
PARAMS ((CORE_ADDR
));
114 #define SKIP_PROLOGUE(pc) (mn10300_skip_prologue (pc))
116 #define FRAME_ARGS_SKIP 0
118 #define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
119 #define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
120 #define FRAME_NUM_ARGS(fi) (-1)
122 extern void mn10300_pop_frame
PARAMS ((struct frame_info
*));
123 #define POP_FRAME mn10300_pop_frame (get_current_frame ())
125 #define USE_GENERIC_DUMMY_FRAMES 1
126 #define CALL_DUMMY {0}
127 #define CALL_DUMMY_START_OFFSET (0)
128 #define CALL_DUMMY_BREAKPOINT_OFFSET (0)
129 #define CALL_DUMMY_LOCATION AT_ENTRY_POINT
130 #define FIX_CALL_DUMMY(DUMMY, START, FUNADDR, NARGS, ARGS, TYPE, GCCP)
131 #define CALL_DUMMY_ADDRESS() entry_point_address ()
133 #define TARGET_READ_FP() read_sp ()
135 extern CORE_ADDR mn10300_push_return_address
PARAMS ((CORE_ADDR
, CORE_ADDR
));
136 #define PUSH_RETURN_ADDRESS(PC, SP) mn10300_push_return_address (PC, SP)
138 #define PUSH_DUMMY_FRAME generic_push_dummy_frame ()
139 #define SAVE_DUMMY_FRAME_TOS(SP) generic_save_dummy_frame_tos (SP)
142 mn10300_push_arguments
PARAMS ((int, struct value
**, CORE_ADDR
,
143 unsigned char, CORE_ADDR
));
144 #define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
145 (mn10300_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR))
147 #define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP, FP)
149 #define REG_STRUCT_HAS_ADDR(gcc_p,TYPE) \
150 (TYPE_LENGTH (TYPE) > 8)
152 extern use_struct_convention_fn mn10300_use_struct_convention
;
153 #define USE_STRUCT_CONVENTION(GCC_P, TYPE) mn10300_use_struct_convention (GCC_P, TYPE)
155 /* override the default get_saved_register function with
156 one that takes account of generic CALL_DUMMY frames */
157 #define GET_SAVED_REGISTER(raw_buffer, optimized, addrp, frame, regnum, lval) \
158 generic_get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
160 /* Cons up virtual frame pointer for trace */
161 extern void mn10300_virtual_frame_pointer
PARAMS ((CORE_ADDR
, long *, long *));
162 #define TARGET_VIRTUAL_FRAME_POINTER(PC, REGP, OFFP) \
163 mn10300_virtual_frame_pointer ((PC), (REGP), (OFFP))