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c906108c | 1 | /* Module support. |
836cc9f4 | 2 | |
4a94e368 | 3 | Copyright 1996-2022 Free Software Foundation, Inc. |
836cc9f4 | 4 | |
c906108c SS |
5 | Contributed by Cygnus Support. |
6 | ||
7 | This file is part of GDB, the GNU debugger. | |
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 | |
4744ac1b JB |
11 | the Free Software Foundation; either version 3 of the License, or |
12 | (at your option) any later version. | |
c906108c SS |
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 | ||
4744ac1b JB |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
c906108c | 21 | |
6df01ab8 MF |
22 | /* This must come before any other includes. */ |
23 | #include "defs.h" | |
24 | ||
20a8e078 MF |
25 | #include <stdlib.h> |
26 | ||
27 | #include "libiberty.h" | |
28 | ||
c906108c SS |
29 | #include "sim-main.h" |
30 | #include "sim-io.h" | |
31 | #include "sim-options.h" | |
32 | #include "sim-assert.h" | |
33 | ||
8e5f1516 MF |
34 | /* List of all early/core modules. |
35 | TODO: Should trim this list by converting to sim_install_* framework. */ | |
36 | static MODULE_INSTALL_FN * const early_modules[] = { | |
c906108c SS |
37 | standard_install, |
38 | sim_events_install, | |
c906108c | 39 | sim_model_install, |
c906108c | 40 | sim_core_install, |
c906108c | 41 | sim_memopt_install, |
c906108c | 42 | sim_watchpoint_install, |
c906108c | 43 | }; |
8e5f1516 MF |
44 | static int early_modules_len = ARRAY_SIZE (early_modules); |
45 | ||
46 | /* List of dynamically detected modules. Declared in generated modules.c. */ | |
47 | extern MODULE_INSTALL_FN * const sim_modules_detected[]; | |
48 | extern const int sim_modules_detected_len; | |
c906108c SS |
49 | \f |
50 | /* Functions called from sim_open. */ | |
51 | ||
52 | /* Initialize common parts before argument processing. */ | |
53 | ||
54 | SIM_RC | |
55 | sim_pre_argv_init (SIM_DESC sd, const char *myname) | |
56 | { | |
57 | SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER); | |
58 | SIM_ASSERT (STATE_MODULES (sd) == NULL); | |
59 | ||
9950eccb | 60 | STATE_MY_NAME (sd) = lbasename (myname); |
c906108c SS |
61 | |
62 | /* Set the cpu names to default values. */ | |
63 | { | |
64 | int i; | |
65 | for (i = 0; i < MAX_NR_PROCESSORS; ++i) | |
66 | { | |
67 | char *name; | |
39a3ae0a MF |
68 | if (asprintf (&name, "cpu%d", i) < 0) |
69 | return SIM_RC_FAIL; | |
c906108c SS |
70 | CPU_NAME (STATE_CPU (sd, i)) = name; |
71 | } | |
72 | } | |
73 | ||
74 | sim_config_default (sd); | |
75 | ||
8e5f1516 | 76 | /* Install all early configured-in modules. */ |
c906108c SS |
77 | if (sim_module_install (sd) != SIM_RC_OK) |
78 | return SIM_RC_FAIL; | |
79 | ||
8e5f1516 MF |
80 | /* Install all remaining dynamically detected modules. */ |
81 | return sim_module_install_list (sd, sim_modules_detected, | |
82 | sim_modules_detected_len); | |
c906108c SS |
83 | } |
84 | ||
85 | /* Initialize common parts after argument processing. */ | |
86 | ||
87 | SIM_RC | |
88 | sim_post_argv_init (SIM_DESC sd) | |
89 | { | |
90 | int i; | |
91 | SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER); | |
92 | SIM_ASSERT (STATE_MODULES (sd) != NULL); | |
93 | ||
94 | /* Set the cpu->state backlinks for each cpu. */ | |
95 | for (i = 0; i < MAX_NR_PROCESSORS; ++i) | |
96 | { | |
97 | CPU_STATE (STATE_CPU (sd, i)) = sd; | |
98 | CPU_INDEX (STATE_CPU (sd, i)) = i; | |
99 | } | |
100 | ||
101 | if (sim_module_init (sd) != SIM_RC_OK) | |
102 | return SIM_RC_FAIL; | |
103 | ||
104 | return SIM_RC_OK; | |
105 | } | |
106 | \f | |
8e5f1516 | 107 | /* Install a list of modules. |
c906108c | 108 | If this fails, no modules are left installed. */ |
c906108c | 109 | SIM_RC |
8e5f1516 MF |
110 | sim_module_install_list (SIM_DESC sd, MODULE_INSTALL_FN * const *modules, |
111 | size_t modules_len) | |
c906108c | 112 | { |
8e5f1516 | 113 | size_t i; |
c906108c | 114 | |
8e5f1516 | 115 | for (i = 0; i < modules_len; ++i) |
c906108c | 116 | { |
8e5f1516 MF |
117 | MODULE_INSTALL_FN *modp = modules[i]; |
118 | ||
119 | if (modp != NULL && modp (sd) != SIM_RC_OK) | |
c906108c SS |
120 | { |
121 | sim_module_uninstall (sd); | |
122 | SIM_ASSERT (STATE_MODULES (sd) == NULL); | |
123 | return SIM_RC_FAIL; | |
124 | } | |
125 | } | |
8e5f1516 | 126 | |
c906108c SS |
127 | return SIM_RC_OK; |
128 | } | |
129 | ||
8e5f1516 MF |
130 | /* Install all modules. |
131 | If this fails, no modules are left installed. */ | |
132 | ||
133 | SIM_RC | |
134 | sim_module_install (SIM_DESC sd) | |
135 | { | |
136 | MODULE_INSTALL_FN * const *modp; | |
137 | ||
138 | SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER); | |
139 | SIM_ASSERT (STATE_MODULES (sd) == NULL); | |
140 | ||
141 | STATE_MODULES (sd) = ZALLOC (struct module_list); | |
142 | return sim_module_install_list (sd, early_modules, early_modules_len); | |
143 | } | |
144 | ||
c906108c SS |
145 | /* Called after all modules have been installed and after argv |
146 | has been processed. */ | |
147 | ||
148 | SIM_RC | |
149 | sim_module_init (SIM_DESC sd) | |
150 | { | |
151 | struct module_list *modules = STATE_MODULES (sd); | |
152 | MODULE_INIT_LIST *modp; | |
153 | ||
154 | SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER); | |
155 | SIM_ASSERT (STATE_MODULES (sd) != NULL); | |
156 | ||
157 | for (modp = modules->init_list; modp != NULL; modp = modp->next) | |
158 | { | |
159 | if ((*modp->fn) (sd) != SIM_RC_OK) | |
160 | return SIM_RC_FAIL; | |
161 | } | |
162 | return SIM_RC_OK; | |
163 | } | |
164 | ||
165 | /* Called when ever the simulator is resumed */ | |
166 | ||
167 | SIM_RC | |
168 | sim_module_resume (SIM_DESC sd) | |
169 | { | |
170 | struct module_list *modules = STATE_MODULES (sd); | |
171 | MODULE_RESUME_LIST *modp; | |
172 | ||
173 | SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER); | |
174 | SIM_ASSERT (STATE_MODULES (sd) != NULL); | |
175 | ||
176 | for (modp = modules->resume_list; modp != NULL; modp = modp->next) | |
177 | { | |
178 | if ((*modp->fn) (sd) != SIM_RC_OK) | |
179 | return SIM_RC_FAIL; | |
180 | } | |
181 | return SIM_RC_OK; | |
182 | } | |
183 | ||
184 | /* Called when ever the simulator is suspended */ | |
185 | ||
186 | SIM_RC | |
187 | sim_module_suspend (SIM_DESC sd) | |
188 | { | |
189 | struct module_list *modules = STATE_MODULES (sd); | |
190 | MODULE_SUSPEND_LIST *modp; | |
191 | ||
192 | SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER); | |
193 | SIM_ASSERT (STATE_MODULES (sd) != NULL); | |
194 | ||
195 | for (modp = modules->suspend_list; modp != NULL; modp = modp->next) | |
196 | { | |
197 | if ((*modp->fn) (sd) != SIM_RC_OK) | |
198 | return SIM_RC_FAIL; | |
199 | } | |
200 | return SIM_RC_OK; | |
201 | } | |
202 | ||
203 | /* Uninstall installed modules, called by sim_close. */ | |
204 | ||
205 | void | |
206 | sim_module_uninstall (SIM_DESC sd) | |
207 | { | |
208 | struct module_list *modules = STATE_MODULES (sd); | |
209 | MODULE_UNINSTALL_LIST *modp; | |
210 | ||
211 | SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER); | |
212 | SIM_ASSERT (STATE_MODULES (sd) != NULL); | |
213 | ||
214 | /* Uninstall the modules. */ | |
215 | for (modp = modules->uninstall_list; modp != NULL; modp = modp->next) | |
216 | (*modp->fn) (sd); | |
217 | ||
218 | /* clean-up init list */ | |
219 | { | |
220 | MODULE_INIT_LIST *n, *d; | |
221 | for (d = modules->init_list; d != NULL; d = n) | |
222 | { | |
223 | n = d->next; | |
d79fe0d6 | 224 | free (d); |
c906108c SS |
225 | } |
226 | } | |
227 | ||
228 | /* clean-up resume list */ | |
229 | { | |
230 | MODULE_RESUME_LIST *n, *d; | |
231 | for (d = modules->resume_list; d != NULL; d = n) | |
232 | { | |
233 | n = d->next; | |
d79fe0d6 | 234 | free (d); |
c906108c SS |
235 | } |
236 | } | |
237 | ||
238 | /* clean-up suspend list */ | |
239 | { | |
240 | MODULE_SUSPEND_LIST *n, *d; | |
241 | for (d = modules->suspend_list; d != NULL; d = n) | |
242 | { | |
243 | n = d->next; | |
d79fe0d6 | 244 | free (d); |
c906108c SS |
245 | } |
246 | } | |
247 | ||
248 | /* clean-up uninstall list */ | |
249 | { | |
250 | MODULE_UNINSTALL_LIST *n, *d; | |
251 | for (d = modules->uninstall_list; d != NULL; d = n) | |
252 | { | |
253 | n = d->next; | |
d79fe0d6 | 254 | free (d); |
c906108c SS |
255 | } |
256 | } | |
257 | ||
258 | /* clean-up info list */ | |
259 | { | |
260 | MODULE_INFO_LIST *n, *d; | |
261 | for (d = modules->info_list; d != NULL; d = n) | |
262 | { | |
263 | n = d->next; | |
d79fe0d6 | 264 | free (d); |
c906108c SS |
265 | } |
266 | } | |
267 | ||
d79fe0d6 | 268 | free (modules); |
c906108c SS |
269 | STATE_MODULES (sd) = NULL; |
270 | } | |
271 | ||
272 | /* Called when ever simulator info is needed */ | |
273 | ||
274 | void | |
275 | sim_module_info (SIM_DESC sd, int verbose) | |
276 | { | |
277 | struct module_list *modules = STATE_MODULES (sd); | |
278 | MODULE_INFO_LIST *modp; | |
279 | ||
280 | SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER); | |
281 | SIM_ASSERT (STATE_MODULES (sd) != NULL); | |
282 | ||
283 | for (modp = modules->info_list; modp != NULL; modp = modp->next) | |
284 | { | |
285 | (*modp->fn) (sd, verbose); | |
286 | } | |
287 | } | |
288 | \f | |
289 | /* Add FN to the init handler list. | |
290 | init in the same order as the install. */ | |
291 | ||
292 | void | |
293 | sim_module_add_init_fn (SIM_DESC sd, MODULE_INIT_FN fn) | |
294 | { | |
295 | struct module_list *modules = STATE_MODULES (sd); | |
296 | MODULE_INIT_LIST *l = ZALLOC (MODULE_INIT_LIST); | |
297 | MODULE_INIT_LIST **last; | |
298 | ||
299 | SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER); | |
300 | SIM_ASSERT (STATE_MODULES (sd) != NULL); | |
301 | ||
302 | last = &modules->init_list; | |
303 | while (*last != NULL) | |
304 | last = &((*last)->next); | |
305 | ||
306 | l->fn = fn; | |
307 | l->next = NULL; | |
308 | *last = l; | |
309 | } | |
310 | ||
311 | /* Add FN to the resume handler list. | |
312 | resume in the same order as the install. */ | |
313 | ||
314 | void | |
315 | sim_module_add_resume_fn (SIM_DESC sd, MODULE_RESUME_FN fn) | |
316 | { | |
317 | struct module_list *modules = STATE_MODULES (sd); | |
318 | MODULE_RESUME_LIST *l = ZALLOC (MODULE_RESUME_LIST); | |
319 | MODULE_RESUME_LIST **last; | |
320 | ||
321 | SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER); | |
322 | SIM_ASSERT (STATE_MODULES (sd) != NULL); | |
323 | ||
324 | last = &modules->resume_list; | |
325 | while (*last != NULL) | |
326 | last = &((*last)->next); | |
327 | ||
328 | l->fn = fn; | |
329 | l->next = NULL; | |
330 | *last = l; | |
331 | } | |
332 | ||
333 | /* Add FN to the init handler list. | |
334 | suspend in the reverse order to install. */ | |
335 | ||
336 | void | |
337 | sim_module_add_suspend_fn (SIM_DESC sd, MODULE_SUSPEND_FN fn) | |
338 | { | |
339 | struct module_list *modules = STATE_MODULES (sd); | |
340 | MODULE_SUSPEND_LIST *l = ZALLOC (MODULE_SUSPEND_LIST); | |
341 | MODULE_SUSPEND_LIST **last; | |
342 | ||
343 | SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER); | |
344 | SIM_ASSERT (STATE_MODULES (sd) != NULL); | |
345 | ||
346 | last = &modules->suspend_list; | |
347 | while (*last != NULL) | |
348 | last = &((*last)->next); | |
349 | ||
350 | l->fn = fn; | |
351 | l->next = modules->suspend_list; | |
352 | modules->suspend_list = l; | |
353 | } | |
354 | ||
355 | /* Add FN to the uninstall handler list. | |
356 | Uninstall in reverse order to install. */ | |
357 | ||
358 | void | |
359 | sim_module_add_uninstall_fn (SIM_DESC sd, MODULE_UNINSTALL_FN fn) | |
360 | { | |
361 | struct module_list *modules = STATE_MODULES (sd); | |
362 | MODULE_UNINSTALL_LIST *l = ZALLOC (MODULE_UNINSTALL_LIST); | |
363 | ||
364 | SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER); | |
365 | SIM_ASSERT (STATE_MODULES (sd) != NULL); | |
366 | ||
367 | l->fn = fn; | |
368 | l->next = modules->uninstall_list; | |
369 | modules->uninstall_list = l; | |
370 | } | |
371 | ||
372 | /* Add FN to the info handler list. | |
373 | Report info in the same order as the install. */ | |
374 | ||
375 | void | |
376 | sim_module_add_info_fn (SIM_DESC sd, MODULE_INFO_FN fn) | |
377 | { | |
378 | struct module_list *modules = STATE_MODULES (sd); | |
379 | MODULE_INFO_LIST *l = ZALLOC (MODULE_INFO_LIST); | |
380 | MODULE_INFO_LIST **last; | |
381 | ||
382 | SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER); | |
383 | SIM_ASSERT (STATE_MODULES (sd) != NULL); | |
384 | ||
385 | last = &modules->info_list; | |
386 | while (*last != NULL) | |
387 | last = &((*last)->next); | |
388 | ||
389 | l->fn = fn; | |
390 | l->next = NULL; | |
391 | *last = l; | |
392 | } |