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", \
38 /* Initializer for an array of names of registers.
39 Entries beyond the first NUM_REGS are ignored. */
41 extern char **v850_register_names
;
42 #define REGISTER_NAME(i) v850_register_names[i]
45 #define REGISTER_BYTES (NUM_REGS * 4)
47 #define REGISTER_SIZE 4
48 #define MAX_REGISTER_RAW_SIZE 4
52 #define SAVE1_START_REGNUM 2
53 #define SAVE1_END_REGNUM 2
56 #define ARGLAST_REGNUM 9
60 #define SAVE2_START_REGNUM 20
61 #define SAVE2_END_REGNUM 29
63 #define SAVE3_START_REGNUM 31
64 #define SAVE3_END_REGNUM 31
67 #define PS_REGNUM (SR0_REGNUM+5)
68 #define CTBP_REGNUM (SR0_REGNUM+20)
71 #define FP_RAW_REGNUM 29
73 #define TARGET_READ_FP() read_register (FP_RAW_REGNUM)
74 #define TARGET_WRITE_FP(VAL) write_register (FP_REGNUM, (VAL))
76 #define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int
78 #define REGISTER_BYTE(REG) ((REG) * 4)
79 #define REGISTER_VIRTUAL_SIZE(REG) 4
80 #define REGISTER_RAW_SIZE(REG) 4
82 #define MAX_REGISTER_VIRTUAL_SIZE 4
84 #define BREAKPOINT {0x40, 0xF8} /* little-ended */
86 #define FUNCTION_START_OFFSET 0
88 #define DECR_PC_AFTER_BREAK 0
90 #define INNER_THAN(lhs,rhs) ((lhs) < (rhs))
92 #define SAVED_PC_AFTER_CALL(fi) read_register (RP_REGNUM)
96 struct frame_saved_regs
;
101 #define EXTRA_FRAME_INFO struct frame_saved_regs fsr;
103 extern void v850_init_extra_frame_info
PARAMS ((struct frame_info
*fi
));
104 #define INIT_EXTRA_FRAME_INFO(fromleaf, fi) v850_init_extra_frame_info (fi)
105 #define INIT_FRAME_PC /* Not necessary */
107 extern void v850_frame_find_saved_regs
PARAMS ((struct frame_info
*fi
, struct frame_saved_regs
*regaddr
));
108 #define FRAME_FIND_SAVED_REGS(fi, regaddr) regaddr = fi->fsr
110 extern CORE_ADDR v850_frame_chain
PARAMS ((struct frame_info
*fi
));
111 #define FRAME_CHAIN(fi) v850_frame_chain (fi)
112 #define FRAME_CHAIN_VALID(FP, FI) generic_frame_chain_valid (FP, FI)
114 extern CORE_ADDR v850_find_callers_reg
PARAMS ((struct frame_info
*fi
, int regnum
));
115 extern CORE_ADDR v850_frame_saved_pc
PARAMS ((struct frame_info
*));
116 #define FRAME_SAVED_PC(FI) (v850_frame_saved_pc (FI))
118 #define EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \
119 memcpy (VALBUF, REGBUF + REGISTER_BYTE (V0_REGNUM), TYPE_LENGTH (TYPE))
121 #define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
122 extract_address (REGBUF + REGISTER_BYTE (V0_REGNUM), \
123 REGISTER_RAW_SIZE (V0_REGNUM))
125 #define STORE_RETURN_VALUE(TYPE, VALBUF) \
126 write_register_bytes(REGISTER_BYTE (V0_REGNUM), VALBUF, TYPE_LENGTH (TYPE));
128 extern CORE_ADDR v850_skip_prologue
PARAMS ((CORE_ADDR pc
));
129 #define SKIP_PROLOGUE(pc) pc = v850_skip_prologue (pc)
131 #define FRAME_ARGS_SKIP 0
133 #define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
134 #define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
135 #define FRAME_NUM_ARGS(val, fi) ((val) = -1)
137 extern void v850_pop_frame
PARAMS ((struct frame_info
*frame
));
138 #define POP_FRAME v850_pop_frame (get_current_frame ())
140 #define USE_GENERIC_DUMMY_FRAMES 1
141 #define CALL_DUMMY {0}
142 #define CALL_DUMMY_START_OFFSET (0)
143 #define CALL_DUMMY_BREAKPOINT_OFFSET (0)
144 #define CALL_DUMMY_LOCATION AT_ENTRY_POINT
145 #define FIX_CALL_DUMMY(DUMMY, START, FUNADDR, NARGS, ARGS, TYPE, GCCP)
146 #define CALL_DUMMY_ADDRESS() entry_point_address ()
147 extern CORE_ADDR v850_push_return_address
PARAMS ((CORE_ADDR
, CORE_ADDR
));
148 #define PUSH_RETURN_ADDRESS(PC, SP) v850_push_return_address (PC, SP)
151 #define PUSH_DUMMY_FRAME generic_push_dummy_frame ()
154 v850_push_arguments
PARAMS ((int nargs
, struct value
**args
, CORE_ADDR sp
,
155 unsigned char struct_return
,
156 CORE_ADDR struct_addr
));
157 #define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
158 (SP) = v850_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR)
160 #define STORE_STRUCT_RETURN(STRUCT_ADDR, SP)
163 #define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP, FP)
165 extern use_struct_convention_fn v850_use_struct_convention
;
166 #define USE_STRUCT_CONVENTION(GCC_P, TYPE) v850_use_struct_convention (GCC_P, TYPE);
168 /* override the default get_saved_register function with
169 one that takes account of generic CALL_DUMMY frames */
170 #define GET_SAVED_REGISTER(raw_buffer, optimized, addrp, frame, regnum, lval) \
171 generic_get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
173 /* Define this for Wingdb */