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6823374b GN |
1 | /* Parameters for execution on a Matsushita mn10300 processor. |
2 | Copyright 1996 | |
3 | Free Software Foundation, Inc. | |
4 | ||
5 | Contributed by Geoffrey Noer <noer@cygnus.com> | |
6 | ||
7 | This file is part of GDB. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
22 | ||
23 | #define TARGET_BYTE_ORDER LITTLE_ENDIAN | |
24 | ||
6823374b GN |
25 | #define REGISTER_BYTES (NUM_REGS * 4) |
26 | ||
27 | #define REGISTER_SIZE 4 | |
28 | #define MAX_REGISTER_RAW_SIZE 4 | |
29 | ||
ddc2888e GN |
30 | #define NUM_REGS 14 |
31 | ||
32 | #define REGISTER_NAMES \ | |
33 | { "d0", "d1", "d2", "d3", "a0", "a1", "a2", "a3", \ | |
34 | "sp", "pc", "mdr", "psw", "lir", "lar"} | |
35 | ||
36 | #define SP_REGNUM 8 | |
37 | #define PC_REGNUM 9 | |
38 | #define MDR_REGNUM 10 | |
39 | #define PSW_REGNUM 11 | |
40 | #define LIR_REGNUM 12 | |
41 | #define LAR_REGNUM 13 | |
6823374b | 42 | |
578d1f44 GN |
43 | #define FP_REGNUM 3 /* ??? */ |
44 | #define V0_REGNUM 2 /* ??? */ | |
45 | #define RP_REGNUM 1 /* ??? */ | |
46 | ||
6823374b GN |
47 | #define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int |
48 | ||
49 | #define REGISTER_BYTE(REG) ((REG) * 4) | |
50 | #define REGISTER_VIRTUAL_SIZE(REG) 4 | |
51 | #define REGISTER_RAW_SIZE(REG) 4 | |
52 | ||
53 | #define MAX_REGISTER_VIRTUAL_SIZE 4 | |
54 | ||
55 | #define BREAKPOINT {0xff, 0xff} | |
56 | ||
57 | #define FUNCTION_START_OFFSET 0 | |
58 | ||
59 | #define DECR_PC_AFTER_BREAK 0 | |
60 | ||
61 | #define INNER_THAN < | |
62 | ||
63 | #define SAVED_PC_AFTER_CALL(fi) read_register (RP_REGNUM) | |
64 | ||
65 | #ifdef __STDC__ | |
66 | struct frame_info; | |
67 | struct frame_saved_regs; | |
68 | struct type; | |
69 | struct value; | |
70 | #endif | |
71 | ||
72 | #define EXTRA_FRAME_INFO struct frame_saved_regs fsr; | |
73 | ||
74 | extern void mn10300_init_extra_frame_info PARAMS ((struct frame_info *fi)); | |
75 | #define INIT_EXTRA_FRAME_INFO(fromleaf, fi) mn10300_init_extra_frame_info (fi) | |
76 | #define INIT_FRAME_PC /* Not necessary */ | |
77 | ||
78 | extern void mn10300_frame_find_saved_regs PARAMS ((struct frame_info *fi, struct frame_saved_regs *regaddr)); | |
79 | #define FRAME_FIND_SAVED_REGS(fi, regaddr) regaddr = fi->fsr | |
80 | ||
81 | extern CORE_ADDR mn10300_frame_chain PARAMS ((struct frame_info *fi)); | |
82 | #define FRAME_CHAIN(fi) mn10300_frame_chain (fi) | |
83 | #define FRAME_CHAIN_VALID(FP, FI) generic_frame_chain_valid (FP, FI) | |
84 | ||
85 | extern CORE_ADDR mn10300_find_callers_reg PARAMS ((struct frame_info *fi, int regnum)); | |
86 | extern CORE_ADDR mn10300_frame_saved_pc PARAMS ((struct frame_info *)); | |
87 | #define FRAME_SAVED_PC(FI) (mn10300_frame_saved_pc (FI)) | |
88 | ||
89 | #define EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \ | |
90 | memcpy (VALBUF, REGBUF + REGISTER_BYTE (V0_REGNUM), TYPE_LENGTH (TYPE)) | |
91 | ||
92 | #define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \ | |
93 | extract_address (REGBUF + REGISTER_BYTE (V0_REGNUM), \ | |
94 | REGISTER_RAW_SIZE (V0_REGNUM)) | |
95 | ||
96 | #define STORE_RETURN_VALUE(TYPE, VALBUF) \ | |
97 | write_register_bytes(REGISTER_BYTE (V0_REGNUM), VALBUF, TYPE_LENGTH (TYPE)); | |
98 | ||
99 | extern CORE_ADDR mn10300_skip_prologue PARAMS ((CORE_ADDR pc)); | |
100 | #define SKIP_PROLOGUE(pc) pc = mn10300_skip_prologue (pc) | |
101 | ||
102 | #define FRAME_ARGS_SKIP 0 | |
103 | ||
104 | #define FRAME_ARGS_ADDRESS(fi) ((fi)->frame) | |
105 | #define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame) | |
106 | #define FRAME_NUM_ARGS(val, fi) ((val) = -1) | |
107 | ||
108 | extern void mn10300_pop_frame PARAMS ((struct frame_info *frame)); | |
109 | #define POP_FRAME mn10300_pop_frame (get_current_frame ()) | |
110 | ||
111 | #define CALL_DUMMY {0} | |
112 | #define CALL_DUMMY_START_OFFSET (0) | |
113 | #define CALL_DUMMY_BREAKPOINT_OFFSET (0) | |
114 | #define CALL_DUMMY_LOCATION AT_ENTRY_POINT | |
115 | #define FIX_CALL_DUMMY(DUMMY, START, FUNADDR, NARGS, ARGS, TYPE, GCCP) | |
116 | #define CALL_DUMMY_ADDRESS() entry_point_address () | |
117 | extern CORE_ADDR mn10300_push_return_address PARAMS ((CORE_ADDR, CORE_ADDR)); | |
118 | #define PUSH_RETURN_ADDRESS(PC, SP) mn10300_push_return_address (PC, SP) | |
119 | ||
6823374b GN |
120 | #define PUSH_DUMMY_FRAME generic_push_dummy_frame () |
121 | ||
122 | extern CORE_ADDR | |
123 | mn10300_push_arguments PARAMS ((int nargs, struct value **args, CORE_ADDR sp, | |
124 | unsigned char struct_return, | |
125 | CORE_ADDR struct_addr)); | |
126 | #define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \ | |
127 | (SP) = mn10300_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) | |
128 | ||
129 | #define STORE_STRUCT_RETURN(STRUCT_ADDR, SP) | |
130 | ||
6823374b GN |
131 | #define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP) |
132 | ||
133 | #define USE_STRUCT_CONVENTION(GCC_P, TYPE) \ | |
134 | (TYPE_NFIELDS (TYPE) > 1 || TYPE_LENGTH (TYPE) > 4) | |
135 | ||
136 | /* override the default get_saved_register function with | |
137 | one that takes account of generic CALL_DUMMY frames */ | |
138 | #define GET_SAVED_REGISTER | |
139 | ||
140 | /* Define this for Wingdb */ | |
141 | ||
142 | #define TARGET_MN10300 |