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2d2959e8 JL |
1 | /* Low level interface to HP800 running mach 4.0. |
2 | Copyright (C) 1995 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | #include "defs.h" | |
21 | #include "inferior.h" | |
22 | #include "floatformat.h" | |
23 | ||
24 | #include <stdio.h> | |
25 | ||
26 | #include <mach.h> | |
27 | #include <mach/message.h> | |
28 | #include <mach/exception.h> | |
29 | #include <mach_error.h> | |
30 | ||
31 | #include <target.h> | |
32 | ||
33 | /* | |
34 | * Fetch inferiors registers for gdb. | |
35 | * REGNO specifies which (as gdb views it) register, -1 for all. | |
36 | */ | |
37 | ||
38 | void | |
39 | fetch_inferior_registers (regno) | |
40 | int regno; | |
41 | { | |
42 | kern_return_t ret; | |
43 | thread_state_data_t state; | |
44 | unsigned int stateCnt = HP800_THREAD_STATE_COUNT; | |
45 | int index; | |
46 | ||
47 | if (! MACH_PORT_VALID (current_thread)) | |
48 | error ("fetch inferior registers: Invalid thread"); | |
49 | ||
50 | if (must_suspend_thread) | |
51 | setup_thread (current_thread, 1); | |
52 | ||
53 | ret = thread_get_state (current_thread, | |
54 | HP800_THREAD_STATE, | |
55 | state, | |
56 | &stateCnt); | |
57 | ||
58 | if (ret != KERN_SUCCESS) | |
59 | warning ("fetch_inferior_registers: %s ", | |
60 | mach_error_string (ret)); | |
61 | else | |
62 | { | |
63 | for (index = 0; index < NUM_REGS; index++) | |
64 | supply_register (index,&state[index]); | |
65 | } | |
66 | ||
67 | if (must_suspend_thread) | |
68 | setup_thread (current_thread, 0); | |
69 | } | |
70 | \f | |
71 | /* Store our register values back into the inferior. | |
72 | * If REGNO is -1, do this for all registers. | |
73 | * Otherwise, REGNO specifies which register | |
74 | * | |
75 | * On mach3 all registers are always saved in one call. | |
76 | */ | |
77 | void | |
78 | store_inferior_registers (regno) | |
79 | int regno; | |
80 | { | |
81 | kern_return_t ret; | |
82 | thread_state_data_t state; | |
83 | unsigned int stateCnt = HP800_THREAD_STATE_COUNT; | |
84 | register int index; | |
85 | ||
86 | if (! MACH_PORT_VALID (current_thread)) | |
87 | error ("store inferior registers: Invalid thread"); | |
88 | ||
89 | if (must_suspend_thread) | |
90 | setup_thread (current_thread, 1); | |
91 | ||
92 | /* Fetch the state of the current thread */ | |
93 | ret = thread_get_state (current_thread, | |
94 | HP800_THREAD_STATE, | |
95 | state, | |
96 | &stateCnt); | |
97 | ||
98 | if (ret != KERN_SUCCESS) | |
99 | { | |
100 | warning ("store_inferior_registers (get): %s", | |
101 | mach_error_string (ret)); | |
102 | if (must_suspend_thread) | |
103 | setup_thread (current_thread, 0); | |
104 | return; | |
105 | } | |
106 | ||
107 | ||
108 | /* move gdb's registers to thread's state | |
109 | * | |
110 | * Since we save all registers anyway, save the ones | |
111 | * that gdb thinks are valid (e.g. ignore the regno | |
112 | * parameter) | |
113 | */ | |
114 | if (regno > 0 && regno < NUM_REGS ) | |
115 | { | |
116 | memcpy(&state[regno], ®isters[REGISTER_BYTE (regno)], | |
117 | REGISTER_RAW_SIZE(regno)); | |
118 | } | |
119 | else | |
120 | { | |
121 | for (index = 0; index < NUM_REGS; index++) | |
122 | memcpy(&state[index], ®isters[REGISTER_BYTE (index)], | |
123 | REGISTER_RAW_SIZE(index)); | |
124 | /* state[index] = registers[REGISTER_BYTE (index)];*/ | |
125 | ||
126 | } | |
127 | ||
128 | /* Write gdb's current view of register to the thread | |
129 | */ | |
130 | ret = thread_set_state (current_thread, | |
131 | HP800_THREAD_STATE, | |
132 | state, | |
133 | HP800_THREAD_STATE_COUNT); | |
134 | ||
135 | if (ret != KERN_SUCCESS) | |
136 | warning ("store_inferior_registers (set): %s", | |
137 | mach_error_string (ret)); | |
138 | ||
139 | if (must_suspend_thread) | |
140 | setup_thread (current_thread, 0); | |
141 | } |