1 /* Parameters for execution on an NEC V850 processor.
3 Free Software Foundation, Inc.
5 This file is part of GDB.
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.
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.
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. */
21 #define TARGET_BYTE_ORDER LITTLE_ENDIAN
25 #define REGISTER_NAMES \
26 { "r0", "r1", "r2", "r3", "r4", "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", "r30", "r31", \
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", \
37 #define REGISTER_BYTES (NUM_REGS * 4)
39 #define REGISTER_SIZE 4
40 #define MAX_REGISTER_RAW_SIZE 4
44 #define SAVE1_START_REGNUM 2
45 #define SAVE1_END_REGNUM 2
48 #define ARGLAST_REGNUM 9
52 #define SAVE2_START_REGNUM 20
53 #define SAVE2_END_REGNUM 29
56 #define SAVE3_START_REGNUM 31
57 #define SAVE3_END_REGNUM 31
62 #define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int
64 #define REGISTER_BYTE(REG) ((REG) * 4)
65 #define REGISTER_VIRTUAL_SIZE(REG) 4
66 #define REGISTER_RAW_SIZE(REG) 4
68 #define MAX_REGISTER_VIRTUAL_SIZE 4
70 #define BREAKPOINT {0x40, 0xF8} /* little-ended */
72 #define FUNCTION_START_OFFSET 0
74 #define DECR_PC_AFTER_BREAK 0
78 #define SAVED_PC_AFTER_CALL(fi) read_register (RP_REGNUM)
82 struct frame_saved_regs
;
87 #define EXTRA_FRAME_INFO struct frame_saved_regs fsr;
89 extern void v850_init_extra_frame_info
PARAMS ((struct frame_info
*fi
));
90 #define INIT_EXTRA_FRAME_INFO(fromleaf, fi) v850_init_extra_frame_info (fi)
91 #define INIT_FRAME_PC /* Not necessary */
93 extern void v850_frame_find_saved_regs
PARAMS ((struct frame_info
*fi
, struct frame_saved_regs
*regaddr
));
94 #define FRAME_FIND_SAVED_REGS(fi, regaddr) regaddr = fi->fsr
96 extern CORE_ADDR v850_frame_chain
PARAMS ((struct frame_info
*fi
));
97 #define FRAME_CHAIN(fi) v850_frame_chain (fi)
98 #define FRAME_CHAIN_VALID(FP, FI) generic_frame_chain_valid (FP, FI)
100 extern CORE_ADDR v850_find_callers_reg
PARAMS ((struct frame_info
*fi
, int regnum
));
101 extern CORE_ADDR v850_frame_saved_pc
PARAMS ((struct frame_info
*));
102 #define FRAME_SAVED_PC(FI) (v850_frame_saved_pc (FI))
104 #define EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \
105 memcpy (VALBUF, REGBUF + REGISTER_BYTE (V0_REGNUM), TYPE_LENGTH (TYPE))
107 #define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
108 extract_address (REGBUF + REGISTER_BYTE (V0_REGNUM), \
109 REGISTER_RAW_SIZE (V0_REGNUM))
111 #define STORE_RETURN_VALUE(TYPE, VALBUF) \
112 write_register_bytes(REGISTER_BYTE (V0_REGNUM), VALBUF, TYPE_LENGTH (TYPE));
114 extern CORE_ADDR v850_skip_prologue
PARAMS ((CORE_ADDR pc
));
115 #define SKIP_PROLOGUE(pc) pc = v850_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(val, fi) ((val) = -1)
123 extern void v850_pop_frame
PARAMS ((struct frame_info
*frame
));
124 #define POP_FRAME v850_pop_frame (get_current_frame ())
126 #define USE_GENERIC_DUMMY_FRAMES
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 ()
133 extern CORE_ADDR v850_push_return_address
PARAMS ((CORE_ADDR
, CORE_ADDR
));
134 #define PUSH_RETURN_ADDRESS(PC, SP) v850_push_return_address (PC, SP)
137 #define PUSH_DUMMY_FRAME generic_push_dummy_frame ()
140 v850_push_arguments
PARAMS ((int nargs
, struct value
**args
, CORE_ADDR sp
,
141 unsigned char struct_return
,
142 CORE_ADDR struct_addr
));
143 #define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
144 (SP) = v850_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR)
146 #define STORE_STRUCT_RETURN(STRUCT_ADDR, SP)
149 #define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP)
151 #define USE_STRUCT_CONVENTION(GCC_P, TYPE) \
152 (TYPE_NFIELDS (TYPE) > 1 || TYPE_LENGTH (TYPE) > 4)
154 /* override the default get_saved_register function with
155 one that takes account of generic CALL_DUMMY frames */
156 #define GET_SAVED_REGISTER
158 /* Define this for Wingdb */