Commit | Line | Data |
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f03b093c AC |
1 | /* Generic simulator halt/restart. |
2 | Copyright (C) 1997 Free Software Foundation, Inc. | |
3 | Contributed by Cygnus Support. | |
4 | ||
5 | This file is part of GDB, the GNU debugger. | |
6 | ||
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, or (at your option) | |
10 | any later version. | |
11 | ||
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. | |
16 | ||
17 | You should have received a copy of the GNU General Public License along | |
18 | with this program; if not, write to the Free Software Foundation, Inc., | |
19 | 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
20 | ||
f03b093c AC |
21 | #include <stdio.h> |
22 | #include <signal.h> | |
23 | ||
6e61ecfc GRK |
24 | #include "sim-main.h" |
25 | #include "sim-assert.h" | |
26 | ||
f03b093c AC |
27 | |
28 | /* Generic halt */ | |
29 | ||
30 | void | |
31 | sim_engine_halt (SIM_DESC sd, | |
32 | sim_cpu *last_cpu, | |
33 | sim_cpu *next_cpu, /* NULL - use default */ | |
34 | sim_cia cia, | |
35 | enum sim_stop reason, | |
36 | int sigrc) | |
37 | { | |
38 | sim_engine *engine = STATE_ENGINE (sd); | |
6e61ecfc | 39 | ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER); |
f03b093c AC |
40 | if (engine->jmpbuf != NULL) |
41 | { | |
42 | jmp_buf *halt_buf = engine->jmpbuf; | |
43 | engine->last_cpu = last_cpu; | |
44 | engine->next_cpu = next_cpu; | |
45 | engine->reason = reason; | |
46 | engine->sigrc = sigrc; | |
47 | SIM_ENGINE_HALT_HOOK (sd, last_cpu, cia); | |
48 | longjmp(*halt_buf, 1); | |
49 | } | |
50 | else | |
51 | sim_io_error (sd, "sim_halt - bad long jump"); | |
52 | } | |
53 | ||
54 | ||
55 | /* Generic restart */ | |
56 | ||
57 | void | |
58 | sim_engine_restart (SIM_DESC sd, | |
59 | sim_cpu *last_cpu, | |
60 | sim_cpu *next_cpu, | |
61 | sim_cia cia) | |
62 | { | |
63 | sim_engine *engine = STATE_ENGINE (sd); | |
6e61ecfc | 64 | ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER); |
f03b093c AC |
65 | if (engine->jmpbuf != NULL) |
66 | { | |
67 | jmp_buf *halt_buf = engine->jmpbuf; | |
68 | engine->last_cpu = last_cpu; | |
69 | engine->next_cpu = next_cpu; | |
70 | SIM_ENGINE_RESTART_HOOK (sd, last_cpu, cia); | |
6e61ecfc | 71 | longjmp(*halt_buf, 2); |
f03b093c AC |
72 | } |
73 | else | |
74 | sim_io_error (sd, "sim_restart - bad long jump"); | |
75 | } | |
76 | ||
77 | ||
78 | /* Generic error code */ | |
79 | ||
80 | void | |
81 | sim_engine_abort (SIM_DESC sd, | |
82 | sim_cpu *cpu, | |
83 | sim_cia cia, | |
84 | const char *fmt, | |
85 | ...) | |
86 | { | |
6e61ecfc | 87 | ASSERT (sd == NULL || STATE_MAGIC (sd) == SIM_MAGIC_NUMBER); |
f03b093c AC |
88 | if (sd == NULL) |
89 | { | |
90 | va_list ap; | |
91 | va_start(ap, fmt); | |
92 | vfprintf (stderr, fmt, ap); | |
93 | va_end(ap); | |
94 | fprintf (stderr, "\nQuit\n"); | |
95 | abort (); | |
96 | } | |
97 | else if (STATE_ENGINE (sd)->jmpbuf == NULL) | |
98 | { | |
99 | va_list ap; | |
100 | va_start(ap, fmt); | |
101 | sim_io_evprintf (sd, fmt, ap); | |
102 | va_end(ap); | |
103 | sim_io_eprintf (sd, "\n"); | |
104 | sim_io_error (sd, "Quit Simulator"); | |
105 | } | |
106 | else | |
107 | { | |
108 | va_list ap; | |
109 | va_start(ap, fmt); | |
110 | sim_io_evprintf (sd, fmt, ap); | |
111 | va_end(ap); | |
112 | sim_io_eprintf (sd, "\n"); | |
113 | sim_engine_halt (sd, cpu, NULL, cia, sim_stopped, SIGABRT); | |
114 | } | |
115 | } | |
116 | ||
117 | ||
118 | /* Generic next/last cpu */ | |
119 | ||
120 | int | |
121 | sim_engine_last_cpu_nr (SIM_DESC sd) | |
122 | { | |
123 | sim_engine *engine = STATE_ENGINE (sd); | |
124 | if (engine->last_cpu != NULL) | |
125 | return engine->last_cpu - STATE_CPU (sd, 0); | |
126 | else | |
127 | return MAX_NR_PROCESSORS; | |
128 | } | |
129 | ||
130 | int | |
131 | sim_engine_next_cpu_nr (SIM_DESC sd) | |
132 | { | |
133 | sim_engine *engine = STATE_ENGINE (sd); | |
134 | if (engine->next_cpu != NULL) | |
135 | return engine->next_cpu - STATE_CPU (sd, 0); | |
136 | else | |
137 | return sim_engine_last_cpu_nr (sd) + 1; | |
138 | } |