Commit | Line | Data |
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6823374b | 1 | /* Parameters for execution on a Matsushita mn10300 processor. |
4efc4045 | 2 | Copyright 1996, 1997 Free Software Foundation, Inc. |
6823374b GN |
3 | |
4 | Contributed by Geoffrey Noer <noer@cygnus.com> | |
5 | ||
6 | This file is part of GDB. | |
7 | ||
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. | |
12 | ||
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. | |
17 | ||
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, Boston, MA 02111-1307, USA. */ | |
21 | ||
fc8d57c2 | 22 | /* The mn10300 is little endian. */ |
6823374b GN |
23 | #define TARGET_BYTE_ORDER LITTLE_ENDIAN |
24 | ||
fc8d57c2 | 25 | /* All registers are 32bits (phew!). */ |
6823374b GN |
26 | #define REGISTER_SIZE 4 |
27 | #define MAX_REGISTER_RAW_SIZE 4 | |
f05bd277 | 28 | #define NUM_REGS 32 |
ddc2888e | 29 | |
fc8d57c2 JL |
30 | #define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int |
31 | ||
32 | #define REGISTER_BYTE(REG) ((REG) * 4) | |
33 | #define REGISTER_VIRTUAL_SIZE(REG) 4 | |
34 | #define REGISTER_RAW_SIZE(REG) 4 | |
35 | ||
36 | #define MAX_REGISTER_VIRTUAL_SIZE 4 | |
37 | ||
95efddf2 GN |
38 | #define REGISTER_BYTES (NUM_REGS * REGISTER_SIZE) |
39 | ||
ddc2888e GN |
40 | #define REGISTER_NAMES \ |
41 | { "d0", "d1", "d2", "d3", "a0", "a1", "a2", "a3", \ | |
f05bd277 JL |
42 | "sp", "pc", "mdr", "psw", "lir", "lar", "", "", \ |
43 | "", "", "", "", "", "", "", "", \ | |
11ac7952 | 44 | "", "", "", "", "", "", "", "fp" } |
ddc2888e | 45 | |
11ac7952 MA |
46 | #define D2_REGNUM 2 |
47 | #define D3_REGNUM 3 | |
48 | #define A2_REGNUM 6 | |
49 | #define A3_REGNUM 7 | |
ddc2888e GN |
50 | #define SP_REGNUM 8 |
51 | #define PC_REGNUM 9 | |
52 | #define MDR_REGNUM 10 | |
53 | #define PSW_REGNUM 11 | |
54 | #define LIR_REGNUM 12 | |
55 | #define LAR_REGNUM 13 | |
f05bd277 JL |
56 | /* start-sanitize-am33 */ |
57 | #define E0_REGNUM 14 | |
58 | /* end-sanitize-am33 */ | |
6823374b | 59 | |
11ac7952 MA |
60 | /* Pseudo register that contains true address of executing stack frame */ |
61 | #define FP_REGNUM 31 | |
578d1f44 | 62 | |
fc8d57c2 JL |
63 | /* The breakpoint instruction must be the same size as the smallest |
64 | instruction in the instruction set. | |
6823374b | 65 | |
fc8d57c2 JL |
66 | The Matsushita mn10x00 processors have single byte instructions |
67 | so we need a single byte breakpoint. Matsushita hasn't defined | |
68 | one, so we defined it ourselves. */ | |
1bb1df85 | 69 | #define BREAKPOINT {0xff} |
6823374b GN |
70 | |
71 | #define FUNCTION_START_OFFSET 0 | |
72 | ||
73 | #define DECR_PC_AFTER_BREAK 0 | |
74 | ||
75 | #define INNER_THAN < | |
76 | ||
4efc4045 GN |
77 | #define SAVED_PC_AFTER_CALL(frame) \ |
78 | read_memory_integer (read_register (SP_REGNUM), 4) | |
6823374b GN |
79 | |
80 | #ifdef __STDC__ | |
81 | struct frame_info; | |
82 | struct frame_saved_regs; | |
83 | struct type; | |
84 | struct value; | |
85 | #endif | |
86 | ||
fc8d57c2 | 87 | #define EXTRA_FRAME_INFO struct frame_saved_regs fsr; int status; int stack_size; |
6823374b | 88 | |
fc8d57c2 | 89 | extern void mn10300_init_extra_frame_info PARAMS ((struct frame_info *)); |
95efddf2 GN |
90 | #define INIT_EXTRA_FRAME_INFO(fromleaf, fi) mn10300_init_extra_frame_info (fi) |
91 | #define INIT_FRAME_PC /* Not necessary */ | |
92 | ||
fc8d57c2 JL |
93 | extern void mn10300_frame_find_saved_regs PARAMS ((struct frame_info *, |
94 | struct frame_saved_regs *)); | |
6823374b GN |
95 | #define FRAME_FIND_SAVED_REGS(fi, regaddr) regaddr = fi->fsr |
96 | ||
fc8d57c2 | 97 | extern CORE_ADDR mn10300_frame_chain PARAMS ((struct frame_info *)); |
6823374b GN |
98 | #define FRAME_CHAIN(fi) mn10300_frame_chain (fi) |
99 | #define FRAME_CHAIN_VALID(FP, FI) generic_frame_chain_valid (FP, FI) | |
100 | ||
fc8d57c2 | 101 | extern CORE_ADDR mn10300_find_callers_reg PARAMS ((struct frame_info *, int)); |
6823374b GN |
102 | extern CORE_ADDR mn10300_frame_saved_pc PARAMS ((struct frame_info *)); |
103 | #define FRAME_SAVED_PC(FI) (mn10300_frame_saved_pc (FI)) | |
104 | ||
4efc4045 GN |
105 | /* Extract from an array REGBUF containing the (raw) register state |
106 | a function return value of type TYPE, and copy that, in virtual format, | |
107 | into VALBUF. */ | |
108 | ||
6823374b | 109 | #define EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \ |
726229db JL |
110 | if (TYPE_CODE (TYPE) == TYPE_CODE_PTR) \ |
111 | memcpy (VALBUF, REGBUF + REGISTER_BYTE (4), TYPE_LENGTH (TYPE)); \ | |
112 | else \ | |
113 | memcpy (VALBUF, REGBUF + REGISTER_BYTE (0), TYPE_LENGTH (TYPE)); | |
114 | ||
6823374b GN |
115 | |
116 | #define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \ | |
157d3d5d JL |
117 | extract_address (REGBUF + REGISTER_BYTE (4), \ |
118 | REGISTER_RAW_SIZE (4)) | |
6823374b GN |
119 | |
120 | #define STORE_RETURN_VALUE(TYPE, VALBUF) \ | |
726229db JL |
121 | if (TYPE_CODE (TYPE) == TYPE_CODE_PTR) \ |
122 | write_register_bytes(REGISTER_BYTE (4), VALBUF, TYPE_LENGTH (TYPE)); \ | |
123 | else \ | |
124 | write_register_bytes(REGISTER_BYTE (0), VALBUF, TYPE_LENGTH (TYPE)); | |
6823374b | 125 | |
fc8d57c2 JL |
126 | #define STORE_STRUCT_RETURN(STRUCT_ADDR, SP) \ |
127 | (SP) = mn10300_store_struct_return (STRUCT_ADDR, SP) | |
128 | ||
129 | extern CORE_ADDR mn10300_skip_prologue PARAMS ((CORE_ADDR)); | |
6823374b GN |
130 | #define SKIP_PROLOGUE(pc) pc = mn10300_skip_prologue (pc) |
131 | ||
132 | #define FRAME_ARGS_SKIP 0 | |
133 | ||
134 | #define FRAME_ARGS_ADDRESS(fi) ((fi)->frame) | |
135 | #define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame) | |
136 | #define FRAME_NUM_ARGS(val, fi) ((val) = -1) | |
137 | ||
fc8d57c2 | 138 | extern void mn10300_pop_frame PARAMS ((struct frame_info *)); |
6823374b GN |
139 | #define POP_FRAME mn10300_pop_frame (get_current_frame ()) |
140 | ||
4da0f856 | 141 | #define USE_GENERIC_DUMMY_FRAMES |
6823374b GN |
142 | #define CALL_DUMMY {0} |
143 | #define CALL_DUMMY_START_OFFSET (0) | |
144 | #define CALL_DUMMY_BREAKPOINT_OFFSET (0) | |
145 | #define CALL_DUMMY_LOCATION AT_ENTRY_POINT | |
146 | #define FIX_CALL_DUMMY(DUMMY, START, FUNADDR, NARGS, ARGS, TYPE, GCCP) | |
147 | #define CALL_DUMMY_ADDRESS() entry_point_address () | |
4efc4045 | 148 | |
6823374b GN |
149 | extern CORE_ADDR mn10300_push_return_address PARAMS ((CORE_ADDR, CORE_ADDR)); |
150 | #define PUSH_RETURN_ADDRESS(PC, SP) mn10300_push_return_address (PC, SP) | |
151 | ||
6823374b GN |
152 | #define PUSH_DUMMY_FRAME generic_push_dummy_frame () |
153 | ||
154 | extern CORE_ADDR | |
fc8d57c2 JL |
155 | mn10300_push_arguments PARAMS ((int, struct value **, CORE_ADDR, |
156 | unsigned char, CORE_ADDR )); | |
6823374b GN |
157 | #define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \ |
158 | (SP) = mn10300_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) | |
159 | ||
6823374b GN |
160 | #define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP) |
161 | ||
fc8d57c2 JL |
162 | #define REG_STRUCT_HAS_ADDR(gcc_p,TYPE) \ |
163 | (TYPE_LENGTH (TYPE) > 8) | |
164 | ||
6823374b | 165 | #define USE_STRUCT_CONVENTION(GCC_P, TYPE) \ |
fc8d57c2 | 166 | (TYPE_NFIELDS (TYPE) > 1 || TYPE_LENGTH (TYPE) > 8) |
6823374b GN |
167 | |
168 | /* override the default get_saved_register function with | |
169 | one that takes account of generic CALL_DUMMY frames */ | |
170 | #define GET_SAVED_REGISTER | |
171 | ||
172 | /* Define this for Wingdb */ | |
173 | ||
174 | #define TARGET_MN10300 |