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ddc2888e GN |
1 | /* Target-dependent code for the NEC MN10300 for GDB, the GNU debugger. |
2 | Copyright 1996, Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GDB. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
19 | ||
20 | /* Contributed by Geoffrey Noer, noer@cygnus.com */ | |
21 | ||
22 | #include "defs.h" | |
23 | #include "frame.h" | |
24 | #include "inferior.h" | |
25 | #include "obstack.h" | |
26 | #include "target.h" | |
27 | #include "value.h" | |
28 | #include "bfd.h" | |
29 | #include "gdb_string.h" | |
30 | #include "gdbcore.h" | |
31 | #include "symfile.h" | |
32 | ||
33 | /* Info gleaned from scanning a function's prologue. */ | |
34 | ||
35 | struct pifsr /* Info about one saved reg */ | |
36 | { | |
37 | int framereg; /* Frame reg (SP or FP) */ | |
38 | int offset; /* Offset from framereg */ | |
39 | int reg; /* Saved register number */ | |
40 | }; | |
41 | ||
42 | struct prologue_info | |
43 | { | |
44 | int framereg; | |
45 | int frameoffset; | |
46 | int start_function; | |
47 | struct pifsr *pifsrs; | |
48 | }; | |
49 | ||
50 | static CORE_ADDR | |
51 | mn10300_scan_prologue (pc, pi) | |
52 | CORE_ADDR pc; | |
53 | struct prologue_info *pi; | |
54 | { | |
55 | } | |
56 | ||
57 | void | |
58 | mn10300_init_extra_frame_info (fi) | |
59 | struct frame_info *fi; | |
60 | { | |
61 | } | |
62 | ||
63 | CORE_ADDR | |
64 | mn10300_frame_chain (fi) | |
65 | struct frame_info *fi; | |
66 | { | |
67 | } | |
68 | ||
69 | CORE_ADDR | |
70 | mn10300_find_callers_reg (fi, regnum) | |
71 | struct frame_info *fi; | |
72 | int regnum; | |
73 | { | |
74 | } | |
75 | ||
76 | CORE_ADDR | |
77 | mn10300_skip_prologue (pc) | |
78 | CORE_ADDR pc; | |
79 | { | |
80 | } | |
81 | ||
82 | /* Function: pop_frame | |
83 | This routine gets called when either the user uses the `return' | |
84 | command, or the call dummy breakpoint gets hit. */ | |
85 | ||
86 | void | |
87 | mn10300_pop_frame (frame) | |
88 | struct frame_info *frame; | |
89 | { | |
90 | } | |
91 | ||
92 | CORE_ADDR | |
93 | mn10300_push_arguments (nargs, args, sp, struct_return, struct_addr) | |
94 | int nargs; | |
95 | value_ptr *args; | |
96 | CORE_ADDR sp; | |
97 | unsigned char struct_return; | |
98 | CORE_ADDR struct_addr; | |
99 | { | |
100 | } | |
101 | ||
102 | CORE_ADDR | |
103 | mn10300_push_return_address (pc, sp) | |
104 | CORE_ADDR pc; | |
105 | CORE_ADDR sp; | |
106 | { | |
107 | } | |
108 | ||
109 | CORE_ADDR | |
110 | mn10300_frame_saved_pc (fi) | |
111 | struct frame_info *fi; | |
112 | { | |
113 | } | |
114 | ||
115 | void | |
116 | get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval) | |
117 | char *raw_buffer; | |
118 | int *optimized; | |
119 | CORE_ADDR *addrp; | |
120 | struct frame_info *frame; | |
121 | int regnum; | |
122 | enum lval_type *lval; | |
123 | { | |
124 | generic_get_saved_register (raw_buffer, optimized, addrp, | |
125 | frame, regnum, lval); | |
126 | } | |
127 | ||
128 | int | |
129 | mn10300_fix_call_dummy (dummy, sp, fun, nargs, args, type, gcc_p) | |
130 | char *dummy; | |
131 | CORE_ADDR sp; | |
132 | CORE_ADDR fun; | |
133 | int nargs; | |
134 | value_ptr *args; | |
135 | struct type *type; | |
136 | int gcc_p; | |
137 | { | |
138 | } | |
139 | ||
140 | void | |
141 | _initialize_mn10300_tdep () | |
142 | { | |
143 | tm_print_insn = print_insn_mn10300; | |
144 | } |