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c906108c SS |
1 | /* Interface GDB to Mach 3.0 operating systems. |
2 | (Most) Mach 3.0 related routines live in this file. | |
3 | ||
8e65ff28 AC |
4 | Copyright (C) 1992, 1996, 1999, 2000, 2001 |
5 | Free Software Foundation, Inc. | |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
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 | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
c906108c | 13 | |
c5aa993b JM |
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. | |
c906108c | 18 | |
c5aa993b JM |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 59 Temple Place - Suite 330, | |
22 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
23 | |
24 | /* | |
25 | * Author: Jukka Virtanen <jtv@hut.fi> | |
c5aa993b | 26 | * Computing Centre |
c906108c SS |
27 | * Helsinki University of Technology |
28 | * Finland | |
29 | * | |
30 | * Thanks to my friends who helped with ideas and testing: | |
31 | * | |
c5aa993b JM |
32 | * Johannes Helander, Antti Louko, Tero Mononen, |
33 | * jvh@cs.hut.fi alo@hut.fi tmo@cs.hut.fi | |
c906108c SS |
34 | * |
35 | * Tero Kivinen and Eamonn McManus | |
c5aa993b JM |
36 | * kivinen@cs.hut.fi emcmanus@gr.osf.org |
37 | * | |
c906108c SS |
38 | */ |
39 | ||
40 | #include <stdio.h> | |
41 | ||
42 | #include <mach.h> | |
43 | #include <servers/netname.h> | |
44 | #include <servers/machid.h> | |
45 | #include <mach/message.h> | |
46 | #include <mach/notify.h> | |
47 | #include <mach_error.h> | |
48 | #include <mach/exception.h> | |
49 | #include <mach/vm_attributes.h> | |
50 | ||
51 | #include "defs.h" | |
52 | #include "inferior.h" | |
53 | #include "symtab.h" | |
54 | #include "value.h" | |
55 | #include "language.h" | |
56 | #include "target.h" | |
03f2053f | 57 | #include "gdb_wait.h" |
c906108c SS |
58 | #include "gdbcmd.h" |
59 | #include "gdbcore.h" | |
60 | ||
61 | #if 0 | |
62 | #include <servers/machid_lib.h> | |
63 | #else | |
64 | #define MACH_TYPE_TASK 1 | |
65 | #define MACH_TYPE_THREAD 2 | |
66 | #endif | |
67 | ||
68 | /* Included only for signal names and NSIG | |
c5aa993b | 69 | |
c906108c SS |
70 | * note: There are many problems in signal handling with |
71 | * gdb in Mach 3.0 in general. | |
72 | */ | |
73 | #include <signal.h> | |
c5aa993b | 74 | #define SIG_UNKNOWN 0 /* Exception that has no matching unix signal */ |
c906108c SS |
75 | |
76 | #include <cthreads.h> | |
77 | ||
78 | /* This is what a cproc looks like. This is here partly because | |
79 | cthread_internals.h is not a header we can just #include, partly with | |
80 | an eye towards perhaps getting this to work with cross-debugging | |
81 | someday. Best solution is if CMU publishes a real interface to this | |
82 | stuff. */ | |
83 | #define CPROC_NEXT_OFFSET 0 | |
84 | #define CPROC_NEXT_SIZE (TARGET_PTR_BIT / HOST_CHAR_BIT) | |
85 | #define CPROC_INCARNATION_OFFSET (CPROC_NEXT_OFFSET + CPROC_NEXT_SIZE) | |
86 | #define CPROC_INCARNATION_SIZE (sizeof (cthread_t)) | |
87 | #define CPROC_LIST_OFFSET (CPROC_INCARNATION_OFFSET + CPROC_INCARNATION_SIZE) | |
88 | #define CPROC_LIST_SIZE (TARGET_PTR_BIT / HOST_CHAR_BIT) | |
89 | #define CPROC_WAIT_OFFSET (CPROC_LIST_OFFSET + CPROC_LIST_SIZE) | |
90 | #define CPROC_WAIT_SIZE (TARGET_PTR_BIT / HOST_CHAR_BIT) | |
91 | #define CPROC_REPLY_OFFSET (CPROC_WAIT_OFFSET + CPROC_WAIT_SIZE) | |
92 | #define CPROC_REPLY_SIZE (sizeof (mach_port_t)) | |
93 | #define CPROC_CONTEXT_OFFSET (CPROC_REPLY_OFFSET + CPROC_REPLY_SIZE) | |
94 | #define CPROC_CONTEXT_SIZE (TARGET_INT_BIT / HOST_CHAR_BIT) | |
95 | #define CPROC_LOCK_OFFSET (CPROC_CONTEXT_OFFSET + CPROC_CONTEXT_SIZE) | |
96 | #define CPROC_LOCK_SIZE (sizeof (spin_lock_t)) | |
97 | #define CPROC_STATE_OFFSET (CPROC_LOCK_OFFSET + CPROC_LOCK_SIZE) | |
98 | #define CPROC_STATE_SIZE (TARGET_INT_BIT / HOST_CHAR_BIT) | |
99 | #define CPROC_WIRED_OFFSET (CPROC_STATE_OFFSET + CPROC_STATE_SIZE) | |
100 | #define CPROC_WIRED_SIZE (sizeof (mach_port_t)) | |
101 | #define CPROC_BUSY_OFFSET (CPROC_WIRED_OFFSET + CPROC_WIRED_SIZE) | |
102 | #define CPROC_BUSY_SIZE (TARGET_INT_BIT / HOST_CHAR_BIT) | |
103 | #define CPROC_MSG_OFFSET (CPROC_BUSY_OFFSET + CPROC_BUSY_SIZE) | |
104 | #define CPROC_MSG_SIZE (sizeof (mach_msg_header_t)) | |
105 | #define CPROC_BASE_OFFSET (CPROC_MSG_OFFSET + CPROC_MSG_SIZE) | |
106 | #define CPROC_BASE_SIZE (TARGET_INT_BIT / HOST_CHAR_BIT) | |
107 | #define CPROC_SIZE_OFFSET (CPROC_BASE_OFFSET + CPROC_BASE_SIZE) | |
108 | #define CPROC_SIZE_SIZE (TARGET_INT_BIT / HOST_CHAR_BIT) | |
109 | #define CPROC_SIZE (CPROC_SIZE_OFFSET + CPROC_SIZE_SIZE) | |
110 | ||
111 | /* Values for the state field in the cproc. */ | |
112 | #define CPROC_RUNNING 0 | |
113 | #define CPROC_SWITCHING 1 | |
114 | #define CPROC_BLOCKED 2 | |
115 | #define CPROC_CONDWAIT 4 | |
116 | ||
117 | /* For cproc and kernel thread mapping */ | |
c5aa993b JM |
118 | typedef struct gdb_thread |
119 | { | |
120 | mach_port_t name; | |
121 | CORE_ADDR sp; | |
122 | CORE_ADDR pc; | |
123 | CORE_ADDR fp; | |
124 | boolean_t in_emulator; | |
125 | int slotid; | |
126 | ||
127 | /* This is for the mthreads list. It points to the cproc list. | |
128 | Perhaps the two lists should be merged (or perhaps it was a mistake | |
129 | to make them both use a struct gdb_thread). */ | |
130 | struct gdb_thread *cproc; | |
131 | ||
132 | /* These are for the cproc list, which is linked through the next field | |
133 | of the struct gdb_thread. */ | |
134 | char raw_cproc[CPROC_SIZE]; | |
135 | /* The cthread which is pointed to by the incarnation field from the | |
136 | cproc. This points to the copy we've read into GDB. */ | |
137 | cthread_t cthread; | |
138 | /* Point back to the mthreads list. */ | |
139 | int reverse_map; | |
140 | struct gdb_thread *next; | |
141 | } | |
142 | *gdb_thread_t; | |
c906108c SS |
143 | |
144 | /* | |
145 | * Actions for Mach exceptions. | |
146 | * | |
147 | * sigmap field maps the exception to corresponding Unix signal. | |
148 | * | |
149 | * I do not know how to map the exception to unix signal | |
150 | * if SIG_UNKNOWN is specified. | |
151 | */ | |
152 | ||
c5aa993b JM |
153 | struct exception_list |
154 | { | |
155 | char *name; | |
156 | boolean_t forward; | |
157 | boolean_t print; | |
158 | int sigmap; | |
159 | } | |
160 | exception_map[] = | |
161 | { | |
162 | { | |
163 | "not_mach3_exception", FALSE, TRUE, SIG_UNKNOWN | |
164 | } | |
165 | , | |
166 | { | |
167 | "EXC_BAD_ACCESS", FALSE, TRUE, SIGSEGV | |
168 | } | |
169 | , | |
170 | { | |
171 | "EXC_BAD_INSTRUCTION", FALSE, TRUE, SIGILL | |
172 | } | |
173 | , | |
174 | { | |
175 | "EXC_ARITHMETIC", FALSE, TRUE, SIGFPE | |
176 | } | |
177 | , | |
178 | { | |
179 | "EXC_EMULATION", FALSE, TRUE, SIGEMT | |
180 | } | |
181 | , /* ??? */ | |
182 | { | |
183 | "EXC_SOFTWARE", FALSE, TRUE, SIG_UNKNOWN | |
184 | } | |
185 | , | |
186 | { | |
187 | "EXC_BREAKPOINT", FALSE, FALSE, SIGTRAP | |
188 | } | |
c906108c SS |
189 | }; |
190 | ||
191 | /* Mach exception table size */ | |
c5aa993b | 192 | int max_exception = sizeof (exception_map) / sizeof (struct exception_list) - 1; |
c906108c SS |
193 | |
194 | #define MAX_EXCEPTION max_exception | |
195 | ||
196 | WAITTYPE wait_status; | |
197 | ||
198 | /* If you define this, intercepted bsd server calls will be | |
199 | * dumped while waiting the inferior to EXEC the correct | |
200 | * program | |
201 | */ | |
c5aa993b | 202 | /* #define DUMP_SYSCALL /* debugging interceptor */ |
c906108c SS |
203 | |
204 | /* xx_debug() outputs messages if this is nonzero. | |
205 | * If > 1, DUMP_SYSCALL will dump message contents. | |
206 | */ | |
207 | int debug_level = 0; | |
208 | ||
209 | /* "Temporary" debug stuff */ | |
210 | void | |
fba45db2 | 211 | xx_debug (char *fmt, int a, int b, int c) |
c906108c SS |
212 | { |
213 | if (debug_level) | |
214 | warning (fmt, a, b, c); | |
215 | } | |
216 | ||
217 | /* This is in libmach.a */ | |
c5aa993b | 218 | extern mach_port_t name_server_port; |
c906108c SS |
219 | |
220 | /* Set in catch_exception_raise */ | |
221 | int stop_exception, stop_code, stop_subcode; | |
222 | int stopped_in_exception; | |
223 | ||
224 | /* Thread that was the active thread when we stopped */ | |
225 | thread_t stop_thread = MACH_PORT_NULL; | |
226 | ||
227 | char *hostname = ""; | |
228 | ||
229 | /* Set when task is attached or created */ | |
230 | boolean_t emulator_present = FALSE; | |
231 | ||
c5aa993b | 232 | task_t inferior_task; |
c906108c SS |
233 | thread_t current_thread; |
234 | ||
235 | /* Exception ports for inferior task */ | |
c5aa993b | 236 | mach_port_t inferior_exception_port = MACH_PORT_NULL; |
c906108c SS |
237 | mach_port_t inferior_old_exception_port = MACH_PORT_NULL; |
238 | ||
239 | /* task exceptions and notifications */ | |
c5aa993b JM |
240 | mach_port_t inferior_wait_port_set = MACH_PORT_NULL; |
241 | mach_port_t our_notify_port = MACH_PORT_NULL; | |
c906108c SS |
242 | |
243 | /* This is "inferior_wait_port_set" when not single stepping, and | |
244 | * "singlestepped_thread_port" when we are single stepping. | |
245 | * | |
246 | * This is protected by a cleanup function: discard_single_step() | |
247 | */ | |
c5aa993b | 248 | mach_port_t currently_waiting_for = MACH_PORT_NULL; |
c906108c SS |
249 | |
250 | /* A port for external messages to gdb. | |
251 | * External in the meaning that they do not come | |
252 | * from the inferior_task, but rather from external | |
253 | * tasks. | |
254 | * | |
255 | * As a debugging feature: | |
256 | * A debugger debugging another debugger can stop the | |
257 | * inferior debugger by the following command sequence | |
258 | * (without running external programs) | |
259 | * | |
260 | * (top-gdb) set stop_inferior_gdb () | |
261 | * (top-gdb) continue | |
262 | */ | |
c5aa993b | 263 | mach_port_t our_message_port = MACH_PORT_NULL; |
c906108c SS |
264 | |
265 | /* For single stepping */ | |
c5aa993b | 266 | mach_port_t thread_exception_port = MACH_PORT_NULL; |
c906108c | 267 | mach_port_t thread_saved_exception_port = MACH_PORT_NULL; |
c5aa993b | 268 | mach_port_t singlestepped_thread_port = MACH_PORT_NULL; |
c906108c SS |
269 | |
270 | /* For machid calls */ | |
271 | mach_port_t mid_server = MACH_PORT_NULL; | |
c5aa993b | 272 | mach_port_t mid_auth = MACH_PORT_NULL; |
c906108c SS |
273 | |
274 | /* If gdb thinks the inferior task is not suspended, it | |
275 | * must take suspend/abort the threads when it reads the state. | |
276 | */ | |
277 | int must_suspend_thread = 0; | |
278 | ||
279 | /* When single stepping, we switch the port that mach_really_wait() listens to. | |
280 | * This cleanup is a guard to prevent the port set from being left to | |
281 | * the singlestepped_thread_port when error() is called. | |
282 | * This is nonzero only when we are single stepping. | |
283 | */ | |
284 | #define NULL_CLEANUP (struct cleanup *)0 | |
285 | struct cleanup *cleanup_step = NULL_CLEANUP; | |
c906108c | 286 | \f |
c5aa993b | 287 | |
c906108c SS |
288 | static struct target_ops m3_ops; |
289 | ||
290 | static void m3_kill_inferior (); | |
291 | \f | |
292 | #if 0 | |
293 | #define MACH_TYPE_EXCEPTION_PORT -1 | |
294 | #endif | |
295 | ||
296 | /* Chain of ports to remember requested notifications. */ | |
297 | ||
c5aa993b JM |
298 | struct port_chain |
299 | { | |
300 | struct port_chain *next; | |
301 | mach_port_t port; | |
302 | int type; | |
303 | int mid; /* Now only valid with MACH_TYPE_THREAD and */ | |
304 | /* MACH_TYPE_THREAD */ | |
305 | }; | |
c906108c SS |
306 | typedef struct port_chain *port_chain_t; |
307 | ||
308 | /* Room for chain nodes comes from pchain_obstack */ | |
309 | struct obstack pchain_obstack; | |
310 | struct obstack *port_chain_obstack = &pchain_obstack; | |
311 | ||
312 | /* For thread handling */ | |
313 | struct obstack Cproc_obstack; | |
314 | struct obstack *cproc_obstack = &Cproc_obstack; | |
315 | ||
316 | /* the list of notified ports */ | |
317 | port_chain_t notify_chain = (port_chain_t) NULL; | |
318 | ||
319 | port_chain_t | |
fba45db2 | 320 | port_chain_insert (port_chain_t list, mach_port_t name, int type) |
c906108c SS |
321 | { |
322 | kern_return_t ret; | |
323 | port_chain_t new; | |
324 | int mid; | |
325 | ||
c5aa993b | 326 | if (!MACH_PORT_VALID (name)) |
c906108c | 327 | return list; |
c5aa993b | 328 | |
c906108c SS |
329 | if (type == MACH_TYPE_TASK || type == MACH_TYPE_THREAD) |
330 | { | |
c5aa993b | 331 | if (!MACH_PORT_VALID (mid_server)) |
c906108c SS |
332 | { |
333 | warning ("Machid server port invalid, can not map port 0x%x to MID", | |
334 | name); | |
335 | mid = name; | |
336 | } | |
337 | else | |
338 | { | |
339 | ret = machid_mach_register (mid_server, mid_auth, name, type, &mid); | |
c5aa993b | 340 | |
c906108c SS |
341 | if (ret != KERN_SUCCESS) |
342 | { | |
343 | warning ("Can not map name (0x%x) to MID with machid", name); | |
344 | mid = name; | |
345 | } | |
346 | } | |
347 | } | |
348 | else | |
e1e9e218 | 349 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c SS |
350 | |
351 | new = (port_chain_t) obstack_alloc (port_chain_obstack, | |
352 | sizeof (struct port_chain)); | |
c5aa993b JM |
353 | new->next = list; |
354 | new->port = name; | |
355 | new->type = type; | |
356 | new->mid = mid; | |
c906108c SS |
357 | |
358 | return new; | |
359 | } | |
360 | ||
361 | port_chain_t | |
fba45db2 | 362 | port_chain_delete (port_chain_t list, mach_port_t elem) |
c906108c SS |
363 | { |
364 | if (list) | |
365 | if (list->port == elem) | |
366 | list = list->next; | |
367 | else | |
368 | while (list->next) | |
369 | { | |
370 | if (list->next->port == elem) | |
c5aa993b | 371 | list->next = list->next->next; /* GCd with obstack_free() */ |
c906108c SS |
372 | else |
373 | list = list->next; | |
374 | } | |
375 | return list; | |
376 | } | |
377 | ||
378 | void | |
fba45db2 | 379 | port_chain_destroy (struct obstack *ostack) |
c906108c SS |
380 | { |
381 | obstack_free (ostack, 0); | |
382 | obstack_init (ostack); | |
383 | } | |
384 | ||
385 | port_chain_t | |
fba45db2 | 386 | port_chain_member (port_chain_t list, mach_port_t elem) |
c906108c SS |
387 | { |
388 | while (list) | |
389 | { | |
390 | if (list->port == elem) | |
391 | return list; | |
392 | list = list->next; | |
393 | } | |
394 | return (port_chain_t) NULL; | |
395 | } | |
396 | \f | |
397 | int | |
fba45db2 | 398 | map_port_name_to_mid (mach_port_t name, int type) |
c906108c SS |
399 | { |
400 | port_chain_t elem; | |
401 | ||
402 | if (!MACH_PORT_VALID (name)) | |
403 | return -1; | |
404 | ||
405 | elem = port_chain_member (notify_chain, name); | |
406 | ||
407 | if (elem && (elem->type == type)) | |
408 | return elem->mid; | |
c5aa993b | 409 | |
c906108c SS |
410 | if (elem) |
411 | return -1; | |
c5aa993b JM |
412 | |
413 | if (!MACH_PORT_VALID (mid_server)) | |
c906108c SS |
414 | { |
415 | warning ("Machid server port invalid, can not map port 0x%x to mid", | |
416 | name); | |
417 | return -1; | |
418 | } | |
419 | else | |
420 | { | |
421 | int mid; | |
422 | kern_return_t ret; | |
423 | ||
424 | ret = machid_mach_register (mid_server, mid_auth, name, type, &mid); | |
c5aa993b | 425 | |
c906108c SS |
426 | if (ret != KERN_SUCCESS) |
427 | { | |
428 | warning ("Can not map name (0x%x) to mid with machid", name); | |
429 | return -1; | |
430 | } | |
431 | return mid; | |
432 | } | |
433 | } | |
434 | \f | |
435 | /* Guard for currently_waiting_for and singlestepped_thread_port */ | |
436 | static void | |
fba45db2 | 437 | discard_single_step (thread_t thread) |
c906108c SS |
438 | { |
439 | currently_waiting_for = inferior_wait_port_set; | |
440 | ||
441 | cleanup_step = NULL_CLEANUP; | |
442 | if (MACH_PORT_VALID (thread) && MACH_PORT_VALID (singlestepped_thread_port)) | |
443 | setup_single_step (thread, FALSE); | |
444 | } | |
445 | ||
fba45db2 | 446 | setup_single_step (thread_t thread, boolean_t start_step) |
c906108c SS |
447 | { |
448 | kern_return_t ret; | |
449 | ||
c5aa993b | 450 | if (!MACH_PORT_VALID (thread)) |
c906108c SS |
451 | error ("Invalid thread supplied to setup_single_step"); |
452 | else | |
453 | { | |
454 | mach_port_t teport; | |
455 | ||
456 | /* Get the current thread exception port */ | |
457 | ret = thread_get_exception_port (thread, &teport); | |
458 | CHK ("Getting thread's exception port", ret); | |
c5aa993b | 459 | |
c906108c SS |
460 | if (start_step) |
461 | { | |
462 | if (MACH_PORT_VALID (singlestepped_thread_port)) | |
463 | { | |
464 | warning ("Singlestepped_thread_port (0x%x) is still valid?", | |
465 | singlestepped_thread_port); | |
466 | singlestepped_thread_port = MACH_PORT_NULL; | |
467 | } | |
c5aa993b | 468 | |
c906108c SS |
469 | /* If we are already stepping this thread */ |
470 | if (MACH_PORT_VALID (teport) && teport == thread_exception_port) | |
471 | { | |
472 | ret = mach_port_deallocate (mach_task_self (), teport); | |
473 | CHK ("Could not deallocate thread exception port", ret); | |
474 | } | |
475 | else | |
476 | { | |
477 | ret = thread_set_exception_port (thread, thread_exception_port); | |
478 | CHK ("Setting exception port for thread", ret); | |
479 | #if 0 | |
480 | /* Insert thread exception port to wait port set */ | |
c5aa993b | 481 | ret = mach_port_move_member (mach_task_self (), |
c906108c SS |
482 | thread_exception_port, |
483 | inferior_wait_port_set); | |
484 | CHK ("Moving thread exception port to inferior_wait_port_set", | |
485 | ret); | |
486 | #endif | |
487 | thread_saved_exception_port = teport; | |
488 | } | |
c5aa993b | 489 | |
c906108c | 490 | thread_trace (thread, TRUE); |
c5aa993b JM |
491 | |
492 | singlestepped_thread_port = thread_exception_port; | |
493 | currently_waiting_for = singlestepped_thread_port; | |
c906108c SS |
494 | cleanup_step = make_cleanup (discard_single_step, thread); |
495 | } | |
496 | else | |
497 | { | |
c5aa993b | 498 | if (!MACH_PORT_VALID (teport)) |
c906108c SS |
499 | error ("Single stepped thread had an invalid exception port?"); |
500 | ||
501 | if (teport != thread_exception_port) | |
502 | error ("Single stepped thread had an unknown exception port?"); | |
c5aa993b | 503 | |
c906108c SS |
504 | ret = mach_port_deallocate (mach_task_self (), teport); |
505 | CHK ("Couldn't deallocate thread exception port", ret); | |
506 | #if 0 | |
507 | /* Remove thread exception port from wait port set */ | |
c5aa993b | 508 | ret = mach_port_move_member (mach_task_self (), |
c906108c SS |
509 | thread_exception_port, |
510 | MACH_PORT_NULL); | |
511 | CHK ("Removing thread exception port from inferior_wait_port_set", | |
512 | ret); | |
c5aa993b | 513 | #endif |
c906108c SS |
514 | /* Restore thread's old exception port */ |
515 | ret = thread_set_exception_port (thread, | |
516 | thread_saved_exception_port); | |
517 | CHK ("Restoring stepped thread's exception port", ret); | |
c5aa993b | 518 | |
c906108c SS |
519 | if (MACH_PORT_VALID (thread_saved_exception_port)) |
520 | (void) mach_port_deallocate (mach_task_self (), | |
521 | thread_saved_exception_port); | |
c5aa993b | 522 | |
c906108c | 523 | thread_trace (thread, FALSE); |
c5aa993b | 524 | |
c906108c SS |
525 | singlestepped_thread_port = MACH_PORT_NULL; |
526 | currently_waiting_for = inferior_wait_port_set; | |
527 | if (cleanup_step) | |
528 | discard_cleanups (cleanup_step); | |
529 | } | |
530 | } | |
531 | } | |
532 | \f | |
533 | static | |
fba45db2 | 534 | request_notify (mach_port_t name, mach_msg_id_t variant, int type) |
c906108c SS |
535 | { |
536 | kern_return_t ret; | |
c5aa993b JM |
537 | mach_port_t previous_port_dummy = MACH_PORT_NULL; |
538 | ||
539 | if (!MACH_PORT_VALID (name)) | |
c906108c | 540 | return; |
c5aa993b | 541 | |
c906108c SS |
542 | if (port_chain_member (notify_chain, name)) |
543 | return; | |
544 | ||
c5aa993b | 545 | ret = mach_port_request_notification (mach_task_self (), |
c906108c SS |
546 | name, |
547 | variant, | |
548 | 1, | |
549 | our_notify_port, | |
550 | MACH_MSG_TYPE_MAKE_SEND_ONCE, | |
551 | &previous_port_dummy); | |
552 | CHK ("Serious: request_notify failed", ret); | |
553 | ||
554 | (void) mach_port_deallocate (mach_task_self (), | |
555 | previous_port_dummy); | |
556 | ||
557 | notify_chain = port_chain_insert (notify_chain, name, type); | |
558 | } | |
559 | ||
fba45db2 | 560 | reverse_msg_bits (mach_msg_header_t *msgp, int type) |
c906108c | 561 | { |
c5aa993b JM |
562 | int rbits, lbits; |
563 | rbits = MACH_MSGH_BITS_REMOTE (msgp->msgh_bits); | |
c906108c SS |
564 | lbits = type; |
565 | msgp->msgh_bits = | |
566 | (msgp->msgh_bits & ~MACH_MSGH_BITS_PORTS_MASK) | | |
c5aa993b | 567 | MACH_MSGH_BITS (lbits, rbits); |
c906108c SS |
568 | } |
569 | \f | |
570 | /* On the third day He said: | |
571 | ||
c5aa993b JM |
572 | Let this be global |
573 | and then it was global. | |
c906108c SS |
574 | |
575 | When creating the inferior fork, the | |
576 | child code in inflow.c sets the name of the | |
577 | bootstrap_port in its address space to this | |
578 | variable. | |
579 | ||
580 | The name is transferred to our address space | |
581 | with mach3_read_inferior(). | |
582 | ||
583 | Thou shalt not do this with | |
584 | task_get_bootstrap_port() in this task, since | |
585 | the name in the inferior task is different than | |
586 | the one we get. | |
587 | ||
588 | For blessed are the meek, as they shall inherit | |
589 | the address space. | |
590 | */ | |
591 | mach_port_t original_server_port_name = MACH_PORT_NULL; | |
592 | ||
593 | ||
594 | /* Called from inferior after FORK but before EXEC */ | |
595 | static void | |
fba45db2 | 596 | m3_trace_me (void) |
c906108c SS |
597 | { |
598 | kern_return_t ret; | |
c5aa993b | 599 | |
c906108c SS |
600 | /* Get the NAME of the bootstrap port in this task |
601 | so that GDB can read it */ | |
602 | ret = task_get_bootstrap_port (mach_task_self (), | |
603 | &original_server_port_name); | |
604 | if (ret != KERN_SUCCESS) | |
e1e9e218 | 605 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c SS |
606 | ret = mach_port_deallocate (mach_task_self (), |
607 | original_server_port_name); | |
608 | if (ret != KERN_SUCCESS) | |
e1e9e218 | 609 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c5aa993b | 610 | |
c906108c SS |
611 | /* Suspend this task to let the parent change my ports. |
612 | Resumed by the debugger */ | |
613 | ret = task_suspend (mach_task_self ()); | |
614 | if (ret != KERN_SUCCESS) | |
e1e9e218 | 615 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c SS |
616 | } |
617 | \f | |
618 | /* | |
619 | * Intercept system calls to Unix server. | |
620 | * After EXEC_COUNTER calls to exec(), return. | |
621 | * | |
622 | * Pre-assertion: Child is suspended. (Not verified) | |
623 | * Post-condition: Child is suspended after EXEC_COUNTER exec() calls. | |
624 | */ | |
625 | ||
626 | void | |
fba45db2 | 627 | intercept_exec_calls (int exec_counter) |
c906108c SS |
628 | { |
629 | int terminal_initted = 0; | |
630 | ||
c5aa993b JM |
631 | struct syscall_msg_t |
632 | { | |
633 | mach_msg_header_t header; | |
634 | mach_msg_type_t type; | |
635 | char room[2000]; /* Enuff space */ | |
636 | }; | |
c906108c SS |
637 | |
638 | struct syscall_msg_t syscall_in, syscall_out; | |
639 | ||
640 | mach_port_t fake_server; | |
641 | mach_port_t original_server_send; | |
642 | mach_port_t original_exec_reply; | |
643 | mach_port_t exec_reply; | |
644 | mach_port_t exec_reply_send; | |
645 | mach_msg_type_name_t acquired; | |
646 | mach_port_t emulator_server_port_name; | |
647 | struct task_basic_info info; | |
648 | mach_msg_type_number_t info_count; | |
649 | ||
650 | kern_return_t ret; | |
651 | ||
652 | if (exec_counter <= 0) | |
c5aa993b JM |
653 | return; /* We are already set up in the correct program */ |
654 | ||
655 | ret = mach_port_allocate (mach_task_self (), | |
656 | MACH_PORT_RIGHT_RECEIVE, | |
657 | &fake_server); | |
658 | CHK ("create inferior_fake_server port failed", ret); | |
c906108c | 659 | |
c906108c | 660 | /* Wait for inferior_task to suspend itself */ |
c5aa993b | 661 | while (1) |
c906108c SS |
662 | { |
663 | info_count = sizeof (info); | |
664 | ret = task_info (inferior_task, | |
665 | TASK_BASIC_INFO, | |
c5aa993b | 666 | (task_info_t) & info, |
c906108c SS |
667 | &info_count); |
668 | CHK ("Task info", ret); | |
669 | ||
670 | if (info.suspend_count) | |
671 | break; | |
672 | ||
673 | /* Note that the definition of the parameter was undefined | |
674 | * at the time of this writing, so I just use an `ad hoc' value. | |
675 | */ | |
c5aa993b | 676 | (void) swtch_pri (42); /* Universal Priority Value */ |
c906108c SS |
677 | } |
678 | ||
679 | /* Read the inferior's bootstrap port name */ | |
680 | if (!mach3_read_inferior (&original_server_port_name, | |
681 | &original_server_port_name, | |
682 | sizeof (original_server_port_name))) | |
683 | error ("Can't read inferior task bootstrap port name"); | |
684 | ||
685 | /* @@ BUG: If more than 1 send right GDB will FAIL!!! */ | |
686 | /* Should get refs, and set them back when restoring */ | |
687 | /* Steal the original bsd server send right from inferior */ | |
688 | ret = mach_port_extract_right (inferior_task, | |
689 | original_server_port_name, | |
690 | MACH_MSG_TYPE_MOVE_SEND, | |
691 | &original_server_send, | |
692 | &acquired); | |
c5aa993b JM |
693 | CHK ("mach_port_extract_right (bsd server send)", ret); |
694 | ||
c906108c | 695 | if (acquired != MACH_MSG_TYPE_PORT_SEND) |
8e1a459b | 696 | error ("Incorrect right extracted, send right to bsd server expected"); |
c906108c SS |
697 | |
698 | ret = mach_port_insert_right (inferior_task, | |
699 | original_server_port_name, | |
700 | fake_server, | |
701 | MACH_MSG_TYPE_MAKE_SEND); | |
c5aa993b | 702 | CHK ("mach_port_insert_right (fake server send)", ret); |
c906108c SS |
703 | |
704 | xx_debug ("inferior task bsd server ports set up \nfs %x, ospn %x, oss %x\n", | |
705 | fake_server, | |
706 | original_server_port_name, original_server_send); | |
707 | ||
708 | /* A receive right to the reply generated by unix server exec() request */ | |
c5aa993b JM |
709 | ret = mach_port_allocate (mach_task_self (), |
710 | MACH_PORT_RIGHT_RECEIVE, | |
711 | &exec_reply); | |
712 | CHK ("create intercepted_reply_port port failed", ret); | |
713 | ||
c906108c SS |
714 | /* Pass this send right to Unix server so it replies to us after exec() */ |
715 | ret = mach_port_extract_right (mach_task_self (), | |
716 | exec_reply, | |
717 | MACH_MSG_TYPE_MAKE_SEND_ONCE, | |
718 | &exec_reply_send, | |
719 | &acquired); | |
c5aa993b | 720 | CHK ("mach_port_extract_right (exec_reply)", ret); |
c906108c SS |
721 | |
722 | if (acquired != MACH_MSG_TYPE_PORT_SEND_ONCE) | |
8e1a459b | 723 | error ("Incorrect right extracted, send once expected for exec reply"); |
c906108c | 724 | |
c5aa993b JM |
725 | ret = mach_port_move_member (mach_task_self (), |
726 | fake_server, | |
727 | inferior_wait_port_set); | |
c906108c SS |
728 | CHK ("Moving fake syscall port to inferior_wait_port_set", ret); |
729 | ||
730 | xx_debug ("syscall fake server set up, resuming inferior\n"); | |
c5aa993b | 731 | |
c906108c | 732 | ret = task_resume (inferior_task); |
c5aa993b JM |
733 | CHK ("task_resume (startup)", ret); |
734 | ||
c906108c SS |
735 | /* Read requests from the inferior. |
736 | Pass directly through everything else except exec() calls. | |
737 | */ | |
c5aa993b | 738 | while (exec_counter > 0) |
c906108c SS |
739 | { |
740 | ret = mach_msg (&syscall_in.header, /* header */ | |
c5aa993b JM |
741 | MACH_RCV_MSG, /* options */ |
742 | 0, /* send size */ | |
743 | sizeof (struct syscall_msg_t), /* receive size */ | |
744 | inferior_wait_port_set, /* receive_name */ | |
c906108c SS |
745 | MACH_MSG_TIMEOUT_NONE, |
746 | MACH_PORT_NULL); | |
c5aa993b JM |
747 | CHK ("mach_msg (intercepted sycall)", ret); |
748 | ||
c906108c SS |
749 | #ifdef DUMP_SYSCALL |
750 | print_msg (&syscall_in.header); | |
751 | #endif | |
752 | ||
753 | /* ASSERT : msgh_local_port == fake_server */ | |
754 | ||
755 | if (notify_server (&syscall_in.header, &syscall_out.header)) | |
756 | error ("received a notify while intercepting syscalls"); | |
757 | ||
758 | if (syscall_in.header.msgh_id == MIG_EXEC_SYSCALL_ID) | |
759 | { | |
760 | xx_debug ("Received EXEC SYSCALL, counter = %d\n", exec_counter); | |
761 | if (exec_counter == 1) | |
762 | { | |
763 | original_exec_reply = syscall_in.header.msgh_remote_port; | |
764 | syscall_in.header.msgh_remote_port = exec_reply_send; | |
765 | } | |
766 | ||
767 | if (!terminal_initted) | |
768 | { | |
769 | /* Now that the child has exec'd we know it has already set its | |
c5aa993b JM |
770 | process group. On POSIX systems, tcsetpgrp will fail with |
771 | EPERM if we try it before the child's setpgid. */ | |
c906108c SS |
772 | |
773 | /* Set up the "saved terminal modes" of the inferior | |
c5aa993b | 774 | based on what modes we are starting it with. */ |
c906108c SS |
775 | target_terminal_init (); |
776 | ||
777 | /* Install inferior's terminal modes. */ | |
778 | target_terminal_inferior (); | |
779 | ||
780 | terminal_initted = 1; | |
781 | } | |
782 | ||
783 | exec_counter--; | |
784 | } | |
c5aa993b JM |
785 | |
786 | syscall_in.header.msgh_local_port = syscall_in.header.msgh_remote_port; | |
c906108c SS |
787 | syscall_in.header.msgh_remote_port = original_server_send; |
788 | ||
c5aa993b | 789 | reverse_msg_bits (&syscall_in.header, MACH_MSG_TYPE_COPY_SEND); |
c906108c SS |
790 | |
791 | ret = mach_msg_send (&syscall_in.header); | |
792 | CHK ("Forwarded syscall", ret); | |
793 | } | |
c5aa993b JM |
794 | |
795 | ret = mach_port_move_member (mach_task_self (), | |
796 | fake_server, | |
797 | MACH_PORT_NULL); | |
c906108c SS |
798 | CHK ("Moving fake syscall out of inferior_wait_port_set", ret); |
799 | ||
c5aa993b JM |
800 | ret = mach_port_move_member (mach_task_self (), |
801 | exec_reply, | |
802 | inferior_wait_port_set); | |
c906108c SS |
803 | CHK ("Moving exec_reply to inferior_wait_port_set", ret); |
804 | ||
805 | ret = mach_msg (&syscall_in.header, /* header */ | |
c5aa993b JM |
806 | MACH_RCV_MSG, /* options */ |
807 | 0, /* send size */ | |
c906108c | 808 | sizeof (struct syscall_msg_t), /* receive size */ |
c5aa993b | 809 | inferior_wait_port_set, /* receive_name */ |
c906108c SS |
810 | MACH_MSG_TIMEOUT_NONE, |
811 | MACH_PORT_NULL); | |
c5aa993b | 812 | CHK ("mach_msg (exec reply)", ret); |
c906108c SS |
813 | |
814 | ret = task_suspend (inferior_task); | |
815 | CHK ("Suspending inferior after last exec", ret); | |
816 | ||
817 | must_suspend_thread = 0; | |
818 | ||
819 | xx_debug ("Received exec reply from bsd server, suspended inferior task\n"); | |
820 | ||
821 | #ifdef DUMP_SYSCALL | |
c5aa993b | 822 | print_msg (&syscall_in.header); |
c906108c SS |
823 | #endif |
824 | ||
825 | /* Message should appear as if it came from the unix server */ | |
826 | syscall_in.header.msgh_local_port = MACH_PORT_NULL; | |
827 | ||
828 | /* and go to the inferior task original reply port */ | |
829 | syscall_in.header.msgh_remote_port = original_exec_reply; | |
830 | ||
c5aa993b | 831 | reverse_msg_bits (&syscall_in.header, MACH_MSG_TYPE_MOVE_SEND_ONCE); |
c906108c SS |
832 | |
833 | ret = mach_msg_send (&syscall_in.header); | |
834 | CHK ("Forwarding exec reply to inferior", ret); | |
835 | ||
836 | /* Garbage collect */ | |
837 | ret = mach_port_deallocate (inferior_task, | |
838 | original_server_port_name); | |
839 | CHK ("deallocating fake server send right", ret); | |
840 | ||
841 | ret = mach_port_insert_right (inferior_task, | |
842 | original_server_port_name, | |
843 | original_server_send, | |
844 | MACH_MSG_TYPE_MOVE_SEND); | |
845 | CHK ("Restoring the original bsd server send right", ret); | |
846 | ||
847 | ret = mach_port_destroy (mach_task_self (), | |
848 | fake_server); | |
849 | fake_server = MACH_PORT_DEAD; | |
c5aa993b | 850 | CHK ("mach_port_destroy (fake_server)", ret); |
c906108c SS |
851 | |
852 | ret = mach_port_destroy (mach_task_self (), | |
853 | exec_reply); | |
854 | exec_reply = MACH_PORT_DEAD; | |
c5aa993b | 855 | CHK ("mach_port_destroy (exec_reply)", ret); |
c906108c SS |
856 | |
857 | xx_debug ("Done with exec call interception\n"); | |
858 | } | |
859 | ||
860 | void | |
fba45db2 | 861 | consume_send_rights (thread_array_t thread_list, int thread_count) |
c906108c SS |
862 | { |
863 | int index; | |
864 | ||
865 | if (!thread_count) | |
866 | return; | |
867 | ||
868 | for (index = 0; index < thread_count; index++) | |
869 | { | |
870 | /* Since thread kill command kills threads, don't check ret */ | |
871 | (void) mach_port_deallocate (mach_task_self (), | |
c5aa993b | 872 | thread_list[index]); |
c906108c SS |
873 | } |
874 | } | |
875 | ||
876 | /* suspend/abort/resume a thread. */ | |
fba45db2 | 877 | setup_thread (mach_port_t thread, int what) |
c906108c SS |
878 | { |
879 | kern_return_t ret; | |
880 | ||
881 | if (what) | |
882 | { | |
883 | ret = thread_suspend (thread); | |
884 | CHK ("setup_thread thread_suspend", ret); | |
c5aa993b | 885 | |
c906108c SS |
886 | ret = thread_abort (thread); |
887 | CHK ("setup_thread thread_abort", ret); | |
888 | } | |
889 | else | |
890 | { | |
891 | ret = thread_resume (thread); | |
892 | CHK ("setup_thread thread_resume", ret); | |
893 | } | |
894 | } | |
895 | ||
896 | int | |
fba45db2 | 897 | map_slot_to_mid (int slot, thread_array_t threads, int thread_count) |
c906108c SS |
898 | { |
899 | kern_return_t ret; | |
900 | int deallocate = 0; | |
901 | int index; | |
902 | int mid; | |
903 | ||
c5aa993b | 904 | if (!threads) |
c906108c SS |
905 | { |
906 | deallocate++; | |
907 | ret = task_threads (inferior_task, &threads, &thread_count); | |
908 | CHK ("Can not select a thread from a dead task", ret); | |
909 | } | |
c5aa993b | 910 | |
c906108c SS |
911 | if (slot < 0 || slot >= thread_count) |
912 | { | |
913 | if (deallocate) | |
914 | { | |
915 | consume_send_rights (threads, thread_count); | |
c5aa993b JM |
916 | (void) vm_deallocate (mach_task_self (), (vm_address_t) threads, |
917 | (thread_count * sizeof (mach_port_t))); | |
c906108c SS |
918 | } |
919 | if (slot < 0) | |
920 | error ("invalid slot number"); | |
921 | else | |
c5aa993b | 922 | return -(slot + 1); |
c906108c SS |
923 | } |
924 | ||
c5aa993b | 925 | mid = map_port_name_to_mid (threads[slot], MACH_TYPE_THREAD); |
c906108c SS |
926 | |
927 | if (deallocate) | |
928 | { | |
929 | consume_send_rights (threads, thread_count); | |
c5aa993b JM |
930 | (void) vm_deallocate (mach_task_self (), (vm_address_t) threads, |
931 | (thread_count * sizeof (mach_port_t))); | |
c906108c SS |
932 | } |
933 | ||
934 | return mid; | |
935 | } | |
936 | ||
937 | static int | |
fba45db2 | 938 | parse_thread_id (char *arg, int thread_count, int slots) |
c906108c SS |
939 | { |
940 | kern_return_t ret; | |
941 | int mid; | |
942 | int slot; | |
943 | int index; | |
c5aa993b | 944 | |
c906108c SS |
945 | if (arg == 0) |
946 | return 0; | |
c5aa993b | 947 | |
c906108c SS |
948 | while (*arg && (*arg == ' ' || *arg == '\t')) |
949 | arg++; | |
c5aa993b JM |
950 | |
951 | if (!*arg) | |
c906108c | 952 | return 0; |
c5aa993b | 953 | |
c906108c SS |
954 | /* Currently parse MID and @SLOTNUMBER */ |
955 | if (*arg != '@') | |
956 | { | |
957 | mid = atoi (arg); | |
958 | if (mid <= 0) | |
959 | error ("valid thread mid expected"); | |
960 | return mid; | |
961 | } | |
c5aa993b | 962 | |
c906108c SS |
963 | arg++; |
964 | slot = atoi (arg); | |
965 | ||
966 | if (slot < 0) | |
967 | error ("invalid slot number"); | |
968 | ||
969 | /* If you want slot numbers to remain slot numbers, set slots. | |
c5aa993b | 970 | |
c906108c SS |
971 | * Well, since 0 is reserved, return the ordinal number |
972 | * of the thread rather than the slot number. Awk, this | |
973 | * counts as a kludge. | |
974 | */ | |
975 | if (slots) | |
c5aa993b | 976 | return -(slot + 1); |
c906108c SS |
977 | |
978 | if (thread_count && slot >= thread_count) | |
c5aa993b | 979 | return -(slot + 1); |
c906108c SS |
980 | |
981 | mid = map_slot_to_mid (slot); | |
c5aa993b | 982 | |
c906108c SS |
983 | return mid; |
984 | } | |
985 | ||
986 | /* THREAD_ID 0 is special; it selects the first kernel | |
987 | * thread from the list (i.e. SLOTNUMBER 0) | |
988 | * This is used when starting the program with 'run' or when attaching. | |
989 | * | |
990 | * If FLAG is 0 the context is not changed, and the registers, frame, etc | |
991 | * will continue to describe the old thread. | |
992 | * | |
993 | * If FLAG is nonzero, really select the thread. | |
994 | * If FLAG is 2, the THREAD_ID is a slotnumber instead of a mid. | |
995 | * | |
996 | */ | |
997 | kern_return_t | |
fba45db2 | 998 | select_thread (mach_port_t task, int thread_id, int flag) |
c906108c SS |
999 | { |
1000 | thread_array_t thread_list; | |
1001 | int thread_count; | |
1002 | kern_return_t ret; | |
1003 | int index; | |
1004 | thread_t new_thread = MACH_PORT_NULL; | |
1005 | ||
1006 | if (thread_id < 0) | |
1007 | error ("Can't select cprocs without kernel thread"); | |
1008 | ||
1009 | ret = task_threads (task, &thread_list, &thread_count); | |
1010 | if (ret != KERN_SUCCESS) | |
1011 | { | |
1012 | warning ("Can not select a thread from a dead task"); | |
1013 | m3_kill_inferior (); | |
1014 | return KERN_FAILURE; | |
1015 | } | |
1016 | ||
1017 | if (thread_count == 0) | |
1018 | { | |
1019 | /* The task can not do anything anymore, but it still | |
1020 | * exists as a container for memory and ports. | |
1021 | */ | |
1022 | registers_changed (); | |
1023 | warning ("Task %d has no threads", | |
1024 | map_port_name_to_mid (task, MACH_TYPE_TASK)); | |
1025 | current_thread = MACH_PORT_NULL; | |
c5aa993b JM |
1026 | (void) vm_deallocate (mach_task_self (), |
1027 | (vm_address_t) thread_list, | |
1028 | (thread_count * sizeof (mach_port_t))); | |
c906108c SS |
1029 | return KERN_FAILURE; |
1030 | } | |
1031 | ||
c5aa993b | 1032 | if (!thread_id || flag == 2) |
c906108c SS |
1033 | { |
1034 | /* First thread or a slotnumber */ | |
c5aa993b | 1035 | if (!thread_id) |
c906108c SS |
1036 | new_thread = thread_list[0]; |
1037 | else | |
1038 | { | |
1039 | if (thread_id < thread_count) | |
c5aa993b | 1040 | new_thread = thread_list[thread_id]; |
c906108c SS |
1041 | else |
1042 | { | |
c5aa993b JM |
1043 | (void) vm_deallocate (mach_task_self (), |
1044 | (vm_address_t) thread_list, | |
1045 | (thread_count * sizeof (mach_port_t))); | |
c906108c SS |
1046 | error ("No such thread slot number : %d", thread_id); |
1047 | } | |
1048 | } | |
1049 | } | |
1050 | else | |
1051 | { | |
1052 | for (index = 0; index < thread_count; index++) | |
c5aa993b | 1053 | if (thread_id == map_port_name_to_mid (thread_list[index], |
c906108c SS |
1054 | MACH_TYPE_THREAD)) |
1055 | { | |
c5aa993b | 1056 | new_thread = thread_list[index]; |
c906108c SS |
1057 | index = -1; |
1058 | break; | |
1059 | } | |
c5aa993b | 1060 | |
c906108c SS |
1061 | if (index != -1) |
1062 | error ("No thread with mid %d", thread_id); | |
1063 | } | |
c5aa993b | 1064 | |
c906108c SS |
1065 | /* Notify when the selected thread dies */ |
1066 | request_notify (new_thread, MACH_NOTIFY_DEAD_NAME, MACH_TYPE_THREAD); | |
c5aa993b JM |
1067 | |
1068 | ret = vm_deallocate (mach_task_self (), | |
1069 | (vm_address_t) thread_list, | |
1070 | (thread_count * sizeof (mach_port_t))); | |
c906108c | 1071 | CHK ("vm_deallocate", ret); |
c5aa993b JM |
1072 | |
1073 | if (!flag) | |
c906108c SS |
1074 | current_thread = new_thread; |
1075 | else | |
1076 | { | |
1077 | #if 0 | |
1078 | if (MACH_PORT_VALID (current_thread)) | |
1079 | { | |
1080 | /* Store the gdb's view of the thread we are deselecting | |
c5aa993b | 1081 | |
c906108c SS |
1082 | * @@ I think gdb updates registers immediately when they are |
1083 | * changed, so don't do this. | |
1084 | */ | |
1085 | ret = thread_abort (current_thread); | |
1086 | CHK ("Could not abort system calls when saving state of old thread", | |
1087 | ret); | |
1088 | target_prepare_to_store (); | |
1089 | target_store_registers (-1); | |
1090 | } | |
1091 | #endif | |
1092 | ||
1093 | registers_changed (); | |
1094 | ||
1095 | current_thread = new_thread; | |
1096 | ||
1097 | ret = thread_abort (current_thread); | |
1098 | CHK ("Could not abort system calls when selecting a thread", ret); | |
1099 | ||
c5aa993b | 1100 | stop_pc = read_pc (); |
c906108c SS |
1101 | flush_cached_frames (); |
1102 | ||
1103 | select_frame (get_current_frame (), 0); | |
1104 | } | |
1105 | ||
1106 | return KERN_SUCCESS; | |
1107 | } | |
1108 | ||
1109 | /* | |
1110 | * Switch to use thread named NEW_THREAD. | |
1111 | * Return it's MID | |
1112 | */ | |
1113 | int | |
fba45db2 | 1114 | switch_to_thread (thread_t new_thread) |
c906108c SS |
1115 | { |
1116 | thread_t saved_thread = current_thread; | |
1117 | int mid; | |
1118 | ||
1119 | mid = map_port_name_to_mid (new_thread, | |
1120 | MACH_TYPE_THREAD); | |
1121 | if (mid == -1) | |
1122 | warning ("Can't map thread name 0x%x to mid", new_thread); | |
1123 | else if (select_thread (inferior_task, mid, 1) != KERN_SUCCESS) | |
1124 | { | |
1125 | if (current_thread) | |
1126 | current_thread = saved_thread; | |
1127 | error ("Could not select thread %d", mid); | |
1128 | } | |
c5aa993b | 1129 | |
c906108c SS |
1130 | return mid; |
1131 | } | |
1132 | ||
1133 | /* Do this in gdb after doing FORK but before STARTUP_INFERIOR. | |
1134 | * Note that the registers are not yet valid in the inferior task. | |
1135 | */ | |
1136 | static int | |
fba45db2 | 1137 | m3_trace_him (int pid) |
c906108c SS |
1138 | { |
1139 | kern_return_t ret; | |
1140 | ||
1141 | push_target (&m3_ops); | |
1142 | ||
1143 | inferior_task = task_by_pid (pid); | |
1144 | ||
c5aa993b | 1145 | if (!MACH_PORT_VALID (inferior_task)) |
c906108c SS |
1146 | error ("Can not map Unix pid %d to Mach task", pid); |
1147 | ||
1148 | /* Clean up previous notifications and create new ones */ | |
1149 | setup_notify_port (1); | |
1150 | ||
1151 | /* When notification appears, the inferior task has died */ | |
1152 | request_notify (inferior_task, MACH_NOTIFY_DEAD_NAME, MACH_TYPE_TASK); | |
1153 | ||
1154 | emulator_present = have_emulator_p (inferior_task); | |
1155 | ||
1156 | /* By default, select the first thread, | |
1157 | * If task has no threads, gives a warning | |
1158 | * Does not fetch registers, since they are not yet valid. | |
1159 | */ | |
1160 | select_thread (inferior_task, 0, 0); | |
1161 | ||
1162 | inferior_exception_port = MACH_PORT_NULL; | |
1163 | ||
1164 | setup_exception_port (); | |
1165 | ||
1166 | xx_debug ("Now the debugged task is created\n"); | |
1167 | ||
1168 | /* One trap to exec the shell, one to exec the program being debugged. */ | |
1169 | intercept_exec_calls (2); | |
1170 | ||
1171 | return pid; | |
1172 | } | |
1173 | ||
fba45db2 | 1174 | setup_exception_port (void) |
c906108c SS |
1175 | { |
1176 | kern_return_t ret; | |
1177 | ||
c5aa993b | 1178 | ret = mach_port_allocate (mach_task_self (), |
c906108c SS |
1179 | MACH_PORT_RIGHT_RECEIVE, |
1180 | &inferior_exception_port); | |
c5aa993b | 1181 | CHK ("mach_port_allocate", ret); |
c906108c SS |
1182 | |
1183 | /* add send right */ | |
1184 | ret = mach_port_insert_right (mach_task_self (), | |
1185 | inferior_exception_port, | |
1186 | inferior_exception_port, | |
1187 | MACH_MSG_TYPE_MAKE_SEND); | |
c5aa993b | 1188 | CHK ("mach_port_insert_right", ret); |
c906108c | 1189 | |
c5aa993b | 1190 | ret = mach_port_move_member (mach_task_self (), |
c906108c SS |
1191 | inferior_exception_port, |
1192 | inferior_wait_port_set); | |
c5aa993b | 1193 | CHK ("mach_port_move_member", ret); |
c906108c | 1194 | |
c5aa993b | 1195 | ret = task_get_special_port (inferior_task, |
c906108c SS |
1196 | TASK_EXCEPTION_PORT, |
1197 | &inferior_old_exception_port); | |
c5aa993b | 1198 | CHK ("task_get_special_port(old exc)", ret); |
c906108c SS |
1199 | |
1200 | ret = task_set_special_port (inferior_task, | |
c5aa993b | 1201 | TASK_EXCEPTION_PORT, |
c906108c | 1202 | inferior_exception_port); |
c5aa993b | 1203 | CHK ("task_set_special_port", ret); |
c906108c SS |
1204 | |
1205 | ret = mach_port_deallocate (mach_task_self (), | |
1206 | inferior_exception_port); | |
c5aa993b | 1207 | CHK ("mack_port_deallocate", ret); |
c906108c SS |
1208 | |
1209 | #if 0 | |
1210 | /* When notify appears, the inferior_task's exception | |
1211 | * port has been destroyed. | |
1212 | * | |
1213 | * Not used, since the dead_name_notification already | |
1214 | * appears when task dies. | |
1215 | * | |
1216 | */ | |
1217 | request_notify (inferior_exception_port, | |
1218 | MACH_NOTIFY_NO_SENDERS, | |
1219 | MACH_TYPE_EXCEPTION_PORT); | |
1220 | #endif | |
1221 | } | |
1222 | ||
1223 | /* Nonzero if gdb is waiting for a message */ | |
1224 | int mach_really_waiting; | |
1225 | ||
1226 | /* Wait for the inferior to stop for some reason. | |
1227 | - Loop on notifications until inferior_task dies. | |
1228 | - Loop on exceptions until stopped_in_exception comes true. | |
c5aa993b | 1229 | (e.g. we receive a single step trace trap) |
c906108c SS |
1230 | - a message arrives to gdb's message port |
1231 | ||
1232 | There is no other way to exit this loop. | |
1233 | ||
1234 | Returns the inferior_pid for rest of gdb. | |
1235 | Side effects: Set *OURSTATUS. */ | |
1236 | int | |
fba45db2 | 1237 | mach_really_wait (int pid, struct target_waitstatus *ourstatus) |
c906108c SS |
1238 | { |
1239 | kern_return_t ret; | |
1240 | int w; | |
1241 | ||
c5aa993b JM |
1242 | struct msg |
1243 | { | |
1244 | mach_msg_header_t header; | |
1245 | mach_msg_type_t foo; | |
1246 | int data[8000]; | |
1247 | } | |
1248 | in_msg, out_msg; | |
c906108c SS |
1249 | |
1250 | /* Either notify (death), exception or message can stop the inferior */ | |
1251 | stopped_in_exception = FALSE; | |
1252 | ||
1253 | while (1) | |
1254 | { | |
1255 | QUIT; | |
1256 | ||
1257 | stop_exception = stop_code = stop_subcode = -1; | |
1258 | stop_thread = MACH_PORT_NULL; | |
1259 | ||
1260 | mach_really_waiting = 1; | |
c5aa993b JM |
1261 | ret = mach_msg (&in_msg.header, /* header */ |
1262 | MACH_RCV_MSG, /* options */ | |
1263 | 0, /* send size */ | |
c906108c SS |
1264 | sizeof (struct msg), /* receive size */ |
1265 | currently_waiting_for, /* receive name */ | |
1266 | MACH_MSG_TIMEOUT_NONE, | |
1267 | MACH_PORT_NULL); | |
1268 | mach_really_waiting = 0; | |
c5aa993b | 1269 | CHK ("mach_msg (receive)", ret); |
c906108c SS |
1270 | |
1271 | /* Check if we received a notify of the childs' death */ | |
1272 | if (notify_server (&in_msg.header, &out_msg.header)) | |
1273 | { | |
1274 | /* If inferior_task is null then the inferior has | |
1275 | gone away and we want to return to command level. | |
1276 | Otherwise it was just an informative message and we | |
1277 | need to look to see if there are any more. */ | |
1278 | if (inferior_task != MACH_PORT_NULL) | |
1279 | continue; | |
1280 | else | |
1281 | { | |
1282 | /* Collect Unix exit status for gdb */ | |
1283 | ||
c5aa993b | 1284 | wait3 (&w, WNOHANG, 0); |
c906108c SS |
1285 | |
1286 | /* This mess is here to check that the rest of | |
1287 | * gdb knows that the inferior died. It also | |
1288 | * tries to hack around the fact that Mach 3.0 (mk69) | |
1289 | * unix server (ux28) does not always know what | |
1290 | * has happened to it's children when mach-magic | |
1291 | * is applied on them. | |
1292 | */ | |
c5aa993b JM |
1293 | if ((!WIFEXITED (w) && WIFSTOPPED (w)) || |
1294 | (WIFEXITED (w) && WEXITSTATUS (w) > 0377)) | |
c906108c | 1295 | { |
c5aa993b | 1296 | WSETEXIT (w, 0); |
c906108c SS |
1297 | warning ("Using exit value 0 for terminated task"); |
1298 | } | |
c5aa993b | 1299 | else if (!WIFEXITED (w)) |
c906108c | 1300 | { |
c5aa993b | 1301 | int sig = WTERMSIG (w); |
c906108c SS |
1302 | |
1303 | /* Signals cause problems. Warn the user. */ | |
c5aa993b | 1304 | if (sig != SIGKILL) /* Bad luck if garbage matches this */ |
c906108c SS |
1305 | warning ("The terminating signal stuff may be nonsense"); |
1306 | else if (sig > NSIG) | |
1307 | { | |
c5aa993b | 1308 | WSETEXIT (w, 0); |
c906108c SS |
1309 | warning ("Using exit value 0 for terminated task"); |
1310 | } | |
1311 | } | |
1312 | store_waitstatus (ourstatus, w); | |
1313 | return inferior_pid; | |
1314 | } | |
1315 | } | |
1316 | ||
1317 | /* Hmm. Check for exception, as it was not a notification. | |
c5aa993b JM |
1318 | exc_server() does an upcall to catch_exception_raise() |
1319 | if this rpc is an exception. Further actions are decided | |
1320 | there. | |
c906108c | 1321 | */ |
c5aa993b | 1322 | if (!exc_server (&in_msg.header, &out_msg.header)) |
c906108c SS |
1323 | { |
1324 | ||
1325 | /* Not an exception, check for message. | |
c5aa993b | 1326 | |
c906108c SS |
1327 | * Messages don't come from the inferior, or if they |
1328 | * do they better be asynchronous or it will hang. | |
1329 | */ | |
1330 | if (gdb_message_server (&in_msg.header)) | |
1331 | continue; | |
1332 | ||
1333 | error ("Unrecognized message received in mach_really_wait"); | |
1334 | } | |
1335 | ||
1336 | /* Send the reply of the exception rpc to the suspended task */ | |
1337 | ret = mach_msg_send (&out_msg.header); | |
1338 | CHK ("mach_msg_send (exc reply)", ret); | |
c5aa993b | 1339 | |
c906108c SS |
1340 | if (stopped_in_exception) |
1341 | { | |
1342 | /* Get unix state. May be changed in mach3_exception_actions() */ | |
c5aa993b | 1343 | wait3 (&w, WNOHANG, 0); |
c906108c SS |
1344 | |
1345 | mach3_exception_actions (&w, FALSE, "Task"); | |
1346 | ||
1347 | store_waitstatus (ourstatus, w); | |
1348 | return inferior_pid; | |
1349 | } | |
1350 | } | |
1351 | } | |
1352 | ||
1353 | /* Called by macro DO_QUIT() in utils.c(quit). | |
1354 | * This is called just before calling error() to return to command level | |
1355 | */ | |
1356 | void | |
fba45db2 | 1357 | mach3_quit (void) |
c906108c SS |
1358 | { |
1359 | int mid; | |
1360 | kern_return_t ret; | |
c5aa993b | 1361 | |
c906108c SS |
1362 | if (mach_really_waiting) |
1363 | { | |
1364 | ret = task_suspend (inferior_task); | |
c5aa993b | 1365 | |
c906108c SS |
1366 | if (ret != KERN_SUCCESS) |
1367 | { | |
1368 | warning ("Could not suspend task for interrupt: %s", | |
1369 | mach_error_string (ret)); | |
1370 | mach_really_waiting = 0; | |
1371 | return; | |
1372 | } | |
1373 | } | |
1374 | ||
1375 | must_suspend_thread = 0; | |
1376 | mach_really_waiting = 0; | |
1377 | ||
1378 | mid = map_port_name_to_mid (current_thread, MACH_TYPE_THREAD); | |
1379 | if (mid == -1) | |
1380 | { | |
1381 | warning ("Selecting first existing kernel thread"); | |
1382 | mid = 0; | |
1383 | } | |
1384 | ||
c5aa993b | 1385 | current_thread = MACH_PORT_NULL; /* Force setup */ |
c906108c SS |
1386 | select_thread (inferior_task, mid, 1); |
1387 | ||
1388 | return; | |
1389 | } | |
1390 | ||
1391 | #if 0 | |
1392 | /* bogus bogus bogus. It is NOT OK to quit out of target_wait. */ | |
1393 | ||
1394 | /* If ^C is typed when we are waiting for a message | |
1395 | * and your Unix server is able to notice that we | |
1396 | * should quit now. | |
1397 | * | |
1398 | * Called by REQUEST_QUIT() from utils.c(request_quit) | |
1399 | */ | |
1400 | void | |
fba45db2 | 1401 | mach3_request_quit (void) |
c906108c SS |
1402 | { |
1403 | if (mach_really_waiting) | |
1404 | immediate_quit = 1; | |
c5aa993b | 1405 | } |
c906108c SS |
1406 | #endif |
1407 | ||
1408 | /* | |
1409 | * Gdb message server. | |
1410 | * Currently implemented is the STOP message, that causes | |
1411 | * gdb to return to the command level like ^C had been typed from terminal. | |
1412 | */ | |
1413 | int | |
fba45db2 | 1414 | gdb_message_server (mach_msg_header_t *InP) |
c906108c SS |
1415 | { |
1416 | kern_return_t ret; | |
1417 | int mid; | |
1418 | ||
1419 | if (InP->msgh_local_port == our_message_port) | |
1420 | { | |
1421 | /* A message coming to our_message_port. Check validity */ | |
c5aa993b JM |
1422 | switch (InP->msgh_id) |
1423 | { | |
c906108c | 1424 | |
c5aa993b JM |
1425 | case GDB_MESSAGE_ID_STOP: |
1426 | ret = task_suspend (inferior_task); | |
1427 | if (ret != KERN_SUCCESS) | |
1428 | warning ("Could not suspend task for stop message: %s", | |
1429 | mach_error_string (ret)); | |
c906108c | 1430 | |
c5aa993b JM |
1431 | /* QUIT in mach_really_wait() loop. */ |
1432 | request_quit (0); | |
1433 | break; | |
c906108c | 1434 | |
c5aa993b JM |
1435 | default: |
1436 | warning ("Invalid message id %d received, ignored.", | |
1437 | InP->msgh_id); | |
1438 | break; | |
1439 | } | |
c906108c SS |
1440 | |
1441 | return 1; | |
1442 | } | |
1443 | ||
1444 | /* Message not handled by this server */ | |
1445 | return 0; | |
1446 | } | |
1447 | ||
1448 | /* NOTE: This is not an RPC call. It is a simpleroutine. | |
c5aa993b | 1449 | |
c906108c SS |
1450 | * This is not called from this gdb code. |
1451 | * | |
1452 | * It may be called by another debugger to cause this | |
1453 | * debugger to enter command level: | |
1454 | * | |
1455 | * (gdb) set stop_inferior_gdb () | |
1456 | * (gdb) continue | |
1457 | * | |
1458 | * External program "stop-gdb" implements this also. | |
1459 | */ | |
1460 | void | |
fba45db2 | 1461 | stop_inferior_gdb (void) |
c906108c SS |
1462 | { |
1463 | kern_return_t ret; | |
1464 | ||
1465 | /* Code generated by mig, with minor cleanups :-) | |
c5aa993b | 1466 | |
c906108c SS |
1467 | * simpleroutine stop_inferior_gdb (our_message_port : mach_port_t); |
1468 | */ | |
1469 | ||
c5aa993b JM |
1470 | typedef struct |
1471 | { | |
1472 | mach_msg_header_t Head; | |
1473 | } | |
1474 | Request; | |
c906108c SS |
1475 | |
1476 | Request Mess; | |
1477 | ||
1478 | register Request *InP = &Mess; | |
1479 | ||
c5aa993b | 1480 | InP->Head.msgh_bits = MACH_MSGH_BITS (MACH_MSG_TYPE_COPY_SEND, 0); |
c906108c SS |
1481 | |
1482 | /* msgh_size passed as argument */ | |
1483 | InP->Head.msgh_remote_port = our_message_port; | |
c5aa993b JM |
1484 | InP->Head.msgh_local_port = MACH_PORT_NULL; |
1485 | InP->Head.msgh_seqno = 0; | |
1486 | InP->Head.msgh_id = GDB_MESSAGE_ID_STOP; | |
c906108c SS |
1487 | |
1488 | ret = mach_msg (&InP->Head, | |
c5aa993b JM |
1489 | MACH_SEND_MSG | MACH_MSG_OPTION_NONE, |
1490 | sizeof (Request), | |
c906108c SS |
1491 | 0, |
1492 | MACH_PORT_NULL, | |
1493 | MACH_MSG_TIMEOUT_NONE, | |
1494 | MACH_PORT_NULL); | |
1495 | } | |
1496 | ||
1497 | #ifdef THREAD_ALLOWED_TO_BREAK | |
1498 | /* | |
1499 | * Return 1 if the MID specifies the thread that caused the | |
1500 | * last exception. | |
1501 | * Since catch_exception_raise() selects the thread causing | |
1502 | * the last exception to current_thread, we just check that | |
1503 | * it is selected and the last exception was a breakpoint. | |
1504 | */ | |
1505 | int | |
fba45db2 | 1506 | mach_thread_for_breakpoint (int mid) |
c906108c SS |
1507 | { |
1508 | int cmid = map_port_name_to_mid (current_thread, MACH_TYPE_THREAD); | |
1509 | ||
1510 | if (mid < 0) | |
1511 | { | |
c5aa993b | 1512 | mid = map_slot_to_mid (-(mid + 1), 0, 0); |
c906108c SS |
1513 | if (mid < 0) |
1514 | return 0; /* Don't stop, no such slot */ | |
1515 | } | |
1516 | ||
c5aa993b JM |
1517 | if (!mid || cmid == -1) |
1518 | return 1; /* stop */ | |
c906108c SS |
1519 | |
1520 | return cmid == mid && stop_exception == EXC_BREAKPOINT; | |
1521 | } | |
1522 | #endif /* THREAD_ALLOWED_TO_BREAK */ | |
1523 | ||
1524 | #ifdef THREAD_PARSE_ID | |
1525 | /* | |
1526 | * Map a thread id string (MID or a @SLOTNUMBER) | |
1527 | * to a thread-id. | |
1528 | * | |
1529 | * 0 matches all threads. | |
1530 | * Otherwise the meaning is defined only in this file. | |
1531 | * (mach_thread_for_breakpoint uses it) | |
1532 | * | |
1533 | * @@ This allows non-existent MIDs to be specified. | |
1534 | * It now also allows non-existent slots to be | |
1535 | * specified. (Slot numbers stored are negative, | |
1536 | * and the magnitude is one greater than the actual | |
1537 | * slot index. (Since 0 is reserved)) | |
1538 | */ | |
1539 | int | |
fba45db2 | 1540 | mach_thread_parse_id (char *arg) |
c906108c SS |
1541 | { |
1542 | int mid; | |
1543 | if (arg == 0) | |
8e1a459b | 1544 | error ("thread id expected"); |
c906108c SS |
1545 | mid = parse_thread_id (arg, 0, 1); |
1546 | ||
1547 | return mid; | |
1548 | } | |
1549 | #endif /* THREAD_PARSE_ID */ | |
1550 | ||
1551 | #ifdef THREAD_OUTPUT_ID | |
1552 | char * | |
fba45db2 | 1553 | mach_thread_output_id (int mid) |
c906108c | 1554 | { |
c5aa993b | 1555 | static char foobar[20]; |
c906108c SS |
1556 | |
1557 | if (mid > 0) | |
1558 | sprintf (foobar, "mid %d", mid); | |
1559 | else if (mid < 0) | |
c5aa993b | 1560 | sprintf (foobar, "@%d", -(mid + 1)); |
c906108c SS |
1561 | else |
1562 | sprintf (foobar, "*any thread*"); | |
1563 | ||
1564 | return foobar; | |
1565 | } | |
1566 | #endif /* THREAD_OUTPUT_ID */ | |
1567 | ||
1568 | /* Called with hook PREPARE_TO_PROCEED() from infrun.c. | |
c5aa993b | 1569 | |
c906108c SS |
1570 | * If we have switched threads and stopped at breakpoint return 1 otherwise 0. |
1571 | * | |
1572 | * if SELECT_IT is nonzero, reselect the thread that was active when | |
1573 | * we stopped at a breakpoint. | |
1574 | * | |
1575 | */ | |
1576 | ||
fba45db2 | 1577 | mach3_prepare_to_proceed (int select_it) |
c906108c SS |
1578 | { |
1579 | if (stop_thread && | |
1580 | stop_thread != current_thread && | |
1581 | stop_exception == EXC_BREAKPOINT) | |
1582 | { | |
1583 | int mid; | |
1584 | ||
c5aa993b | 1585 | if (!select_it) |
c906108c SS |
1586 | return 1; |
1587 | ||
1588 | mid = switch_to_thread (stop_thread); | |
1589 | ||
1590 | return 1; | |
1591 | } | |
1592 | ||
1593 | return 0; | |
1594 | } | |
1595 | ||
1596 | /* this stuff here is an upcall via libmach/excServer.c | |
1597 | and mach_really_wait which does the actual upcall. | |
1598 | ||
1599 | The code will pass the exception to the inferior if: | |
1600 | ||
c5aa993b JM |
1601 | - The task that signaled is not the inferior task |
1602 | (e.g. when debugging another debugger) | |
c906108c | 1603 | |
c5aa993b JM |
1604 | - The user has explicitely requested to pass on the exceptions. |
1605 | (e.g to the default unix exception handler, which maps | |
1606 | exceptions to signals, or the user has her own exception handler) | |
c906108c | 1607 | |
c5aa993b JM |
1608 | - If the thread that signaled is being single-stepped and it |
1609 | has set it's own exception port and the exception is not | |
1610 | EXC_BREAKPOINT. (Maybe this is not desirable?) | |
c906108c SS |
1611 | */ |
1612 | ||
1613 | kern_return_t | |
fba45db2 KB |
1614 | catch_exception_raise (mach_port_t port, thread_t thread, task_t task, |
1615 | int exception, int code, int subcode) | |
c906108c SS |
1616 | { |
1617 | kern_return_t ret; | |
1618 | boolean_t signal_thread; | |
1619 | int mid = map_port_name_to_mid (thread, MACH_TYPE_THREAD); | |
1620 | ||
c5aa993b | 1621 | if (!MACH_PORT_VALID (thread)) |
c906108c SS |
1622 | { |
1623 | /* If the exception was sent and thread dies before we | |
c5aa993b | 1624 | receive it, THREAD will be MACH_PORT_DEAD |
c906108c SS |
1625 | */ |
1626 | ||
1627 | current_thread = thread = MACH_PORT_NULL; | |
1628 | error ("Received exception from nonexistent thread"); | |
1629 | } | |
1630 | ||
1631 | /* Check if the task died in transit. | |
1632 | * @@ Isn't the thread also invalid in such case? | |
1633 | */ | |
c5aa993b | 1634 | if (!MACH_PORT_VALID (task)) |
c906108c SS |
1635 | { |
1636 | current_thread = thread = MACH_PORT_NULL; | |
1637 | error ("Received exception from nonexistent task"); | |
1638 | } | |
1639 | ||
1640 | if (exception < 0 || exception > MAX_EXCEPTION) | |
8e65ff28 AC |
1641 | internal_error (__FILE__, __LINE__, |
1642 | "catch_exception_raise: unknown exception code %d thread %d", | |
96baa820 JM |
1643 | exception, |
1644 | mid); | |
c906108c | 1645 | |
c5aa993b | 1646 | if (!MACH_PORT_VALID (inferior_task)) |
c906108c | 1647 | error ("got an exception, but inferior_task is null or dead"); |
c5aa993b | 1648 | |
c906108c | 1649 | stop_exception = exception; |
c5aa993b JM |
1650 | stop_code = code; |
1651 | stop_subcode = subcode; | |
1652 | stop_thread = thread; | |
1653 | ||
1654 | signal_thread = exception != EXC_BREAKPOINT && | |
1655 | port == singlestepped_thread_port && | |
1656 | MACH_PORT_VALID (thread_saved_exception_port); | |
c906108c SS |
1657 | |
1658 | /* If it was not our inferior or if we want to forward | |
1659 | * the exception to the inferior's handler, do it here | |
1660 | * | |
1661 | * Note: If you have forwarded EXC_BREAKPOINT I trust you know why. | |
1662 | */ | |
1663 | if (task != inferior_task || | |
c5aa993b JM |
1664 | signal_thread || |
1665 | exception_map[exception].forward) | |
c906108c SS |
1666 | { |
1667 | mach_port_t eport = inferior_old_exception_port; | |
1668 | ||
1669 | if (signal_thread) | |
1670 | { | |
1671 | /* | |
c5aa993b JM |
1672 | GDB now forwards the exeption to thread's original handler, |
1673 | since the user propably knows what he is doing. | |
1674 | Give a message, though. | |
c906108c SS |
1675 | */ |
1676 | ||
c5aa993b | 1677 | mach3_exception_actions ((WAITTYPE *) NULL, TRUE, "Thread"); |
c906108c SS |
1678 | eport = thread_saved_exception_port; |
1679 | } | |
1680 | ||
1681 | /* Send the exception to the original handler */ | |
1682 | ret = exception_raise (eport, | |
c5aa993b | 1683 | thread, |
c906108c SS |
1684 | task, |
1685 | exception, | |
1686 | code, | |
1687 | subcode); | |
1688 | ||
1689 | (void) mach_port_deallocate (mach_task_self (), task); | |
1690 | (void) mach_port_deallocate (mach_task_self (), thread); | |
1691 | ||
1692 | /* If we come here, we don't want to trace any more, since we | |
1693 | * will never stop for tracing anyway. | |
1694 | */ | |
1695 | discard_single_step (thread); | |
1696 | ||
1697 | /* Do not stop the inferior */ | |
1698 | return ret; | |
1699 | } | |
c5aa993b | 1700 | |
c906108c SS |
1701 | /* Now gdb handles the exception */ |
1702 | stopped_in_exception = TRUE; | |
1703 | ||
1704 | ret = task_suspend (task); | |
1705 | CHK ("Error suspending inferior after exception", ret); | |
1706 | ||
1707 | must_suspend_thread = 0; | |
1708 | ||
1709 | if (current_thread != thread) | |
1710 | { | |
1711 | if (MACH_PORT_VALID (singlestepped_thread_port)) | |
1712 | /* Cleanup discards single stepping */ | |
1713 | error ("Exception from thread %d while singlestepping thread %d", | |
1714 | mid, | |
1715 | map_port_name_to_mid (current_thread, MACH_TYPE_THREAD)); | |
c5aa993b | 1716 | |
c906108c SS |
1717 | /* Then select the thread that caused the exception */ |
1718 | if (select_thread (inferior_task, mid, 0) != KERN_SUCCESS) | |
1719 | error ("Could not select thread %d causing exception", mid); | |
1720 | else | |
1721 | warning ("Gdb selected thread %d", mid); | |
1722 | } | |
1723 | ||
1724 | /* If we receive an exception that is not breakpoint | |
1725 | * exception, we interrupt the single step and return to | |
1726 | * debugger. Trace condition is cleared. | |
1727 | */ | |
1728 | if (MACH_PORT_VALID (singlestepped_thread_port)) | |
1729 | { | |
1730 | if (stop_exception != EXC_BREAKPOINT) | |
1731 | warning ("Single step interrupted by exception"); | |
1732 | else if (port == singlestepped_thread_port) | |
1733 | { | |
1734 | /* Single step exception occurred, remove trace bit | |
1735 | * and return to gdb. | |
1736 | */ | |
c5aa993b | 1737 | if (!MACH_PORT_VALID (current_thread)) |
c906108c | 1738 | error ("Single stepped thread is not valid"); |
c5aa993b | 1739 | |
c906108c SS |
1740 | /* Resume threads, but leave the task suspended */ |
1741 | resume_all_threads (0); | |
1742 | } | |
1743 | else | |
1744 | warning ("Breakpoint while single stepping?"); | |
1745 | ||
1746 | discard_single_step (current_thread); | |
1747 | } | |
c5aa993b | 1748 | |
c906108c SS |
1749 | (void) mach_port_deallocate (mach_task_self (), task); |
1750 | (void) mach_port_deallocate (mach_task_self (), thread); | |
1751 | ||
1752 | return KERN_SUCCESS; | |
1753 | } | |
1754 | \f | |
1755 | int | |
fba45db2 | 1756 | port_valid (mach_port_t port, int mask) |
c906108c SS |
1757 | { |
1758 | kern_return_t ret; | |
1759 | mach_port_type_t type; | |
1760 | ||
1761 | ret = mach_port_type (mach_task_self (), | |
1762 | port, | |
1763 | &type); | |
1764 | if (ret != KERN_SUCCESS || (type & mask) != mask) | |
1765 | return 0; | |
1766 | return 1; | |
1767 | } | |
1768 | \f | |
1769 | /* @@ No vm read cache implemented yet */ | |
1770 | boolean_t vm_read_cache_valid = FALSE; | |
1771 | ||
1772 | /* | |
1773 | * Read inferior task's LEN bytes from ADDR and copy it to MYADDR | |
1774 | * in gdb's address space. | |
1775 | * | |
1776 | * Return 0 on failure; number of bytes read otherwise. | |
1777 | */ | |
1778 | int | |
fba45db2 | 1779 | mach3_read_inferior (CORE_ADDR addr, char *myaddr, int length) |
c906108c SS |
1780 | { |
1781 | kern_return_t ret; | |
c5aa993b JM |
1782 | vm_address_t low_address = (vm_address_t) trunc_page (addr); |
1783 | vm_size_t aligned_length = | |
1784 | (vm_size_t) round_page (addr + length) - low_address; | |
1785 | pointer_t copied_memory; | |
1786 | int copy_count; | |
c906108c SS |
1787 | |
1788 | /* Get memory from inferior with page aligned addresses */ | |
1789 | ret = vm_read (inferior_task, | |
1790 | low_address, | |
1791 | aligned_length, | |
1792 | &copied_memory, | |
1793 | ©_count); | |
1794 | if (ret != KERN_SUCCESS) | |
1795 | { | |
1796 | /* the problem is that the inferior might be killed for whatever reason | |
1797 | * before we go to mach_really_wait. This is one place that ought to | |
1798 | * catch many of those errors. | |
1799 | * @@ A better fix would be to make all external events to GDB | |
1800 | * to arrive via a SINGLE port set. (Including user input!) | |
1801 | */ | |
1802 | ||
c5aa993b | 1803 | if (!port_valid (inferior_task, MACH_PORT_TYPE_SEND)) |
c906108c SS |
1804 | { |
1805 | m3_kill_inferior (); | |
1806 | error ("Inferior killed (task port invalid)"); | |
1807 | } | |
1808 | else | |
1809 | { | |
1810 | #ifdef OSF | |
1811 | extern int errno; | |
1812 | /* valprint.c gives nicer format if this does not | |
1813 | screw it. Eamonn seems to like this, so I enable | |
1814 | it if OSF is defined... | |
1815 | */ | |
1816 | warning ("[read inferior %x failed: %s]", | |
1817 | addr, mach_error_string (ret)); | |
1818 | errno = 0; | |
1819 | #endif | |
1820 | return 0; | |
1821 | } | |
1822 | } | |
1823 | ||
c5aa993b | 1824 | memcpy (myaddr, (char *) addr - low_address + copied_memory, length); |
c906108c SS |
1825 | |
1826 | ret = vm_deallocate (mach_task_self (), | |
1827 | copied_memory, | |
1828 | copy_count); | |
c5aa993b | 1829 | CHK ("mach3_read_inferior vm_deallocate failed", ret); |
c906108c SS |
1830 | |
1831 | return length; | |
1832 | } | |
1833 | ||
1834 | #ifdef __STDC__ | |
1835 | #define CHK_GOTO_OUT(str,ret) \ | |
1836 | do if (ret != KERN_SUCCESS) { errstr = #str; goto out; } while(0) | |
1837 | #else | |
1838 | #define CHK_GOTO_OUT(str,ret) \ | |
1839 | do if (ret != KERN_SUCCESS) { errstr = str; goto out; } while(0) | |
1840 | #endif | |
1841 | ||
c5aa993b JM |
1842 | struct vm_region_list |
1843 | { | |
c906108c | 1844 | struct vm_region_list *next; |
c5aa993b JM |
1845 | vm_prot_t protection; |
1846 | vm_address_t start; | |
1847 | vm_size_t length; | |
c906108c SS |
1848 | }; |
1849 | ||
c5aa993b | 1850 | struct obstack region_obstack; |
c906108c SS |
1851 | |
1852 | /* | |
1853 | * Write inferior task's LEN bytes from ADDR and copy it to MYADDR | |
1854 | * in gdb's address space. | |
1855 | */ | |
1856 | int | |
fba45db2 | 1857 | mach3_write_inferior (CORE_ADDR addr, char *myaddr, int length) |
c906108c SS |
1858 | { |
1859 | kern_return_t ret; | |
c5aa993b JM |
1860 | vm_address_t low_address = (vm_address_t) trunc_page (addr); |
1861 | vm_size_t aligned_length = | |
1862 | (vm_size_t) round_page (addr + length) - low_address; | |
1863 | pointer_t copied_memory; | |
1864 | int copy_count; | |
1865 | int deallocate = 0; | |
c906108c | 1866 | |
c5aa993b | 1867 | char *errstr = "Bug in mach3_write_inferior"; |
c906108c SS |
1868 | |
1869 | struct vm_region_list *region_element; | |
c5aa993b | 1870 | struct vm_region_list *region_head = (struct vm_region_list *) NULL; |
c906108c SS |
1871 | |
1872 | /* Get memory from inferior with page aligned addresses */ | |
1873 | ret = vm_read (inferior_task, | |
1874 | low_address, | |
1875 | aligned_length, | |
1876 | &copied_memory, | |
1877 | ©_count); | |
1878 | CHK_GOTO_OUT ("mach3_write_inferior vm_read failed", ret); | |
1879 | ||
1880 | deallocate++; | |
1881 | ||
c5aa993b | 1882 | memcpy ((char *) addr - low_address + copied_memory, myaddr, length); |
c906108c SS |
1883 | |
1884 | obstack_init (®ion_obstack); | |
1885 | ||
1886 | /* Do writes atomically. | |
1887 | * First check for holes and unwritable memory. | |
1888 | */ | |
1889 | { | |
c5aa993b JM |
1890 | vm_size_t remaining_length = aligned_length; |
1891 | vm_address_t region_address = low_address; | |
c906108c SS |
1892 | |
1893 | struct vm_region_list *scan; | |
1894 | ||
c5aa993b | 1895 | while (region_address < low_address + aligned_length) |
c906108c SS |
1896 | { |
1897 | vm_prot_t protection; | |
1898 | vm_prot_t max_protection; | |
1899 | vm_inherit_t inheritance; | |
1900 | boolean_t shared; | |
1901 | mach_port_t object_name; | |
1902 | vm_offset_t offset; | |
c5aa993b JM |
1903 | vm_size_t region_length = remaining_length; |
1904 | vm_address_t old_address = region_address; | |
1905 | ||
c906108c SS |
1906 | ret = vm_region (inferior_task, |
1907 | ®ion_address, | |
1908 | ®ion_length, | |
1909 | &protection, | |
1910 | &max_protection, | |
1911 | &inheritance, | |
1912 | &shared, | |
1913 | &object_name, | |
1914 | &offset); | |
1915 | CHK_GOTO_OUT ("vm_region failed", ret); | |
1916 | ||
1917 | /* Check for holes in memory */ | |
1918 | if (old_address != region_address) | |
1919 | { | |
1920 | warning ("No memory at 0x%x. Nothing written", | |
1921 | old_address); | |
1922 | ret = KERN_SUCCESS; | |
1923 | length = 0; | |
1924 | goto out; | |
1925 | } | |
1926 | ||
1927 | if (!(max_protection & VM_PROT_WRITE)) | |
1928 | { | |
1929 | warning ("Memory at address 0x%x is unwritable. Nothing written", | |
1930 | old_address); | |
1931 | ret = KERN_SUCCESS; | |
1932 | length = 0; | |
1933 | goto out; | |
1934 | } | |
1935 | ||
1936 | /* Chain the regions for later use */ | |
c5aa993b | 1937 | region_element = |
c906108c | 1938 | (struct vm_region_list *) |
c5aa993b JM |
1939 | obstack_alloc (®ion_obstack, sizeof (struct vm_region_list)); |
1940 | ||
c906108c | 1941 | region_element->protection = protection; |
c5aa993b JM |
1942 | region_element->start = region_address; |
1943 | region_element->length = region_length; | |
c906108c SS |
1944 | |
1945 | /* Chain the regions along with protections */ | |
1946 | region_element->next = region_head; | |
c5aa993b JM |
1947 | region_head = region_element; |
1948 | ||
c906108c SS |
1949 | region_address += region_length; |
1950 | remaining_length = remaining_length - region_length; | |
1951 | } | |
1952 | ||
1953 | /* If things fail after this, we give up. | |
1954 | * Somebody is messing up inferior_task's mappings. | |
1955 | */ | |
c5aa993b | 1956 | |
c906108c SS |
1957 | /* Enable writes to the chained vm regions */ |
1958 | for (scan = region_head; scan; scan = scan->next) | |
1959 | { | |
1960 | boolean_t protection_changed = FALSE; | |
c5aa993b | 1961 | |
c906108c SS |
1962 | if (!(scan->protection & VM_PROT_WRITE)) |
1963 | { | |
1964 | ret = vm_protect (inferior_task, | |
1965 | scan->start, | |
1966 | scan->length, | |
1967 | FALSE, | |
1968 | scan->protection | VM_PROT_WRITE); | |
1969 | CHK_GOTO_OUT ("vm_protect: enable write failed", ret); | |
1970 | } | |
1971 | } | |
1972 | ||
1973 | ret = vm_write (inferior_task, | |
1974 | low_address, | |
1975 | copied_memory, | |
1976 | aligned_length); | |
1977 | CHK_GOTO_OUT ("vm_write failed", ret); | |
c5aa993b | 1978 | |
c906108c SS |
1979 | /* Set up the original region protections, if they were changed */ |
1980 | for (scan = region_head; scan; scan = scan->next) | |
1981 | { | |
1982 | boolean_t protection_changed = FALSE; | |
c5aa993b | 1983 | |
c906108c SS |
1984 | if (!(scan->protection & VM_PROT_WRITE)) |
1985 | { | |
1986 | ret = vm_protect (inferior_task, | |
1987 | scan->start, | |
1988 | scan->length, | |
1989 | FALSE, | |
1990 | scan->protection); | |
1991 | CHK_GOTO_OUT ("vm_protect: enable write failed", ret); | |
1992 | } | |
1993 | } | |
1994 | } | |
1995 | ||
c5aa993b | 1996 | out: |
c906108c SS |
1997 | if (deallocate) |
1998 | { | |
1999 | obstack_free (®ion_obstack, 0); | |
c5aa993b | 2000 | |
c906108c SS |
2001 | (void) vm_deallocate (mach_task_self (), |
2002 | copied_memory, | |
2003 | copy_count); | |
2004 | } | |
2005 | ||
2006 | if (ret != KERN_SUCCESS) | |
2007 | { | |
2008 | warning ("%s %s", errstr, mach_error_string (ret)); | |
2009 | return 0; | |
2010 | } | |
2011 | ||
2012 | return length; | |
2013 | } | |
2014 | ||
ad525611 KB |
2015 | /* Return 0 on failure, number of bytes handled otherwise. TARGET is |
2016 | ignored. */ | |
c906108c | 2017 | static int |
ad525611 KB |
2018 | m3_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
2019 | struct target_ops *target) | |
c906108c SS |
2020 | { |
2021 | int result; | |
2022 | ||
2023 | if (write) | |
2024 | result = mach3_write_inferior (memaddr, myaddr, len); | |
2025 | else | |
c5aa993b | 2026 | result = mach3_read_inferior (memaddr, myaddr, len); |
c906108c SS |
2027 | |
2028 | return result; | |
2029 | } | |
c906108c | 2030 | \f |
c5aa993b | 2031 | |
c906108c | 2032 | static char * |
fba45db2 | 2033 | translate_state (int state) |
c906108c | 2034 | { |
c5aa993b JM |
2035 | switch (state) |
2036 | { | |
2037 | case TH_STATE_RUNNING: | |
2038 | return ("R"); | |
2039 | case TH_STATE_STOPPED: | |
2040 | return ("S"); | |
2041 | case TH_STATE_WAITING: | |
2042 | return ("W"); | |
2043 | case TH_STATE_UNINTERRUPTIBLE: | |
2044 | return ("U"); | |
2045 | case TH_STATE_HALTED: | |
2046 | return ("H"); | |
2047 | default: | |
2048 | return ("?"); | |
2049 | } | |
c906108c SS |
2050 | } |
2051 | ||
2052 | static char * | |
fba45db2 | 2053 | translate_cstate (int state) |
c906108c SS |
2054 | { |
2055 | switch (state) | |
2056 | { | |
c5aa993b JM |
2057 | case CPROC_RUNNING: |
2058 | return "R"; | |
2059 | case CPROC_SWITCHING: | |
2060 | return "S"; | |
2061 | case CPROC_BLOCKED: | |
2062 | return "B"; | |
2063 | case CPROC_CONDWAIT: | |
2064 | return "C"; | |
2065 | case CPROC_CONDWAIT | CPROC_SWITCHING: | |
2066 | return "CS"; | |
2067 | default: | |
2068 | return "?"; | |
c906108c SS |
2069 | } |
2070 | } | |
2071 | ||
2072 | /* type == MACH_MSG_TYPE_COPY_SEND || type == MACH_MSG_TYPE_MAKE_SEND */ | |
2073 | ||
c5aa993b | 2074 | mach_port_t /* no mach_port_name_t found in include files. */ |
fba45db2 | 2075 | map_inferior_port_name (mach_port_t inferior_name, mach_msg_type_name_t type) |
c906108c | 2076 | { |
c5aa993b | 2077 | kern_return_t ret; |
c906108c | 2078 | mach_msg_type_name_t acquired; |
c5aa993b JM |
2079 | mach_port_t iport; |
2080 | ||
c906108c SS |
2081 | ret = mach_port_extract_right (inferior_task, |
2082 | inferior_name, | |
2083 | type, | |
2084 | &iport, | |
2085 | &acquired); | |
c5aa993b | 2086 | CHK ("mach_port_extract_right (map_inferior_port_name)", ret); |
c906108c SS |
2087 | |
2088 | if (acquired != MACH_MSG_TYPE_PORT_SEND) | |
c5aa993b | 2089 | error ("Incorrect right extracted, (map_inferior_port_name)"); |
c906108c SS |
2090 | |
2091 | ret = mach_port_deallocate (mach_task_self (), | |
2092 | iport); | |
2093 | CHK ("Deallocating mapped port (map_inferior_port_name)", ret); | |
2094 | ||
2095 | return iport; | |
2096 | } | |
2097 | ||
2098 | /* | |
2099 | * Naming convention: | |
2100 | * Always return user defined name if found. | |
2101 | * _K == A kernel thread with no matching CPROC | |
2102 | * _C == A cproc with no current cthread | |
2103 | * _t == A cthread with no user defined name | |
2104 | * | |
2105 | * The digits that follow the _names are the SLOT number of the | |
2106 | * kernel thread if there is such a thing, otherwise just a negation | |
2107 | * of the sequential number of such cprocs. | |
2108 | */ | |
2109 | ||
2110 | static char buf[7]; | |
2111 | ||
2112 | static char * | |
fba45db2 | 2113 | get_thread_name (gdb_thread_t one_cproc, int id) |
c906108c SS |
2114 | { |
2115 | if (one_cproc) | |
2116 | if (one_cproc->cthread == NULL) | |
2117 | { | |
2118 | /* cproc not mapped to any cthread */ | |
c5aa993b | 2119 | sprintf (buf, "_C%d", id); |
c906108c | 2120 | } |
c5aa993b | 2121 | else if (!one_cproc->cthread->name) |
c906108c SS |
2122 | { |
2123 | /* cproc and cthread, but no name */ | |
c5aa993b | 2124 | sprintf (buf, "_t%d", id); |
c906108c SS |
2125 | } |
2126 | else | |
c5aa993b | 2127 | return (char *) (one_cproc->cthread->name); |
c906108c SS |
2128 | else |
2129 | { | |
2130 | if (id < 0) | |
2131 | warning ("Inconsistency in thread name id %d", id); | |
2132 | ||
2133 | /* Kernel thread without cproc */ | |
c5aa993b | 2134 | sprintf (buf, "_K%d", id); |
c906108c SS |
2135 | } |
2136 | ||
2137 | return buf; | |
2138 | } | |
2139 | ||
2140 | int | |
ad525611 | 2141 | fetch_thread_info (mach_port_t task, gdb_thread_t *mthreads_out) |
c906108c | 2142 | { |
c5aa993b | 2143 | kern_return_t ret; |
c906108c | 2144 | thread_array_t th_table; |
c5aa993b | 2145 | int th_count; |
c906108c | 2146 | gdb_thread_t mthreads = NULL; |
c5aa993b | 2147 | int index; |
c906108c SS |
2148 | |
2149 | ret = task_threads (task, &th_table, &th_count); | |
2150 | if (ret != KERN_SUCCESS) | |
2151 | { | |
2152 | warning ("Error getting inferior's thread list:%s", | |
c5aa993b | 2153 | mach_error_string (ret)); |
c906108c SS |
2154 | m3_kill_inferior (); |
2155 | return -1; | |
2156 | } | |
c5aa993b | 2157 | |
c906108c | 2158 | mthreads = (gdb_thread_t) |
c5aa993b JM |
2159 | obstack_alloc |
2160 | (cproc_obstack, | |
2161 | th_count * sizeof (struct gdb_thread)); | |
c906108c SS |
2162 | |
2163 | for (index = 0; index < th_count; index++) | |
2164 | { | |
2165 | thread_t saved_thread = MACH_PORT_NULL; | |
2166 | int mid; | |
2167 | ||
2168 | if (must_suspend_thread) | |
c5aa993b | 2169 | setup_thread (th_table[index], 1); |
c906108c SS |
2170 | |
2171 | if (th_table[index] != current_thread) | |
2172 | { | |
2173 | saved_thread = current_thread; | |
c5aa993b JM |
2174 | |
2175 | mid = switch_to_thread (th_table[index]); | |
c906108c SS |
2176 | } |
2177 | ||
c5aa993b | 2178 | mthreads[index].name = th_table[index]; |
c906108c SS |
2179 | mthreads[index].cproc = NULL; /* map_cprocs_to_kernel_threads() */ |
2180 | mthreads[index].in_emulator = FALSE; | |
2181 | mthreads[index].slotid = index; | |
c5aa993b | 2182 | |
c906108c SS |
2183 | mthreads[index].sp = read_register (SP_REGNUM); |
2184 | mthreads[index].fp = read_register (FP_REGNUM); | |
2185 | mthreads[index].pc = read_pc (); | |
2186 | ||
2187 | if (MACH_PORT_VALID (saved_thread)) | |
2188 | mid = switch_to_thread (saved_thread); | |
2189 | ||
2190 | if (must_suspend_thread) | |
c5aa993b | 2191 | setup_thread (th_table[index], 0); |
c906108c | 2192 | } |
c5aa993b | 2193 | |
c906108c | 2194 | consume_send_rights (th_table, th_count); |
c5aa993b JM |
2195 | ret = vm_deallocate (mach_task_self (), (vm_address_t) th_table, |
2196 | (th_count * sizeof (mach_port_t))); | |
c906108c SS |
2197 | if (ret != KERN_SUCCESS) |
2198 | { | |
2199 | warning ("Error trying to deallocate thread list : %s", | |
2200 | mach_error_string (ret)); | |
2201 | } | |
2202 | ||
2203 | *mthreads_out = mthreads; | |
2204 | ||
2205 | return th_count; | |
2206 | } | |
2207 | ||
2208 | ||
2209 | /* | |
2210 | * Current emulator always saves the USP on top of | |
2211 | * emulator stack below struct emul_stack_top stuff. | |
2212 | */ | |
2213 | CORE_ADDR | |
fba45db2 | 2214 | fetch_usp_from_emulator_stack (CORE_ADDR sp) |
c906108c SS |
2215 | { |
2216 | CORE_ADDR stack_pointer; | |
2217 | ||
c5aa993b JM |
2218 | sp = (sp & ~(EMULATOR_STACK_SIZE - 1)) + |
2219 | EMULATOR_STACK_SIZE - sizeof (struct emul_stack_top); | |
2220 | ||
c906108c SS |
2221 | if (mach3_read_inferior (sp, |
2222 | &stack_pointer, | |
2223 | sizeof (CORE_ADDR)) != sizeof (CORE_ADDR)) | |
2224 | { | |
2225 | warning ("Can't read user sp from emulator stack address 0x%x", sp); | |
2226 | return 0; | |
2227 | } | |
2228 | ||
2229 | return stack_pointer; | |
2230 | } | |
2231 | ||
2232 | #ifdef MK67 | |
2233 | ||
2234 | /* get_emulation_vector() interface was changed after mk67 */ | |
2235 | #define EMUL_VECTOR_COUNT 400 /* Value does not matter too much */ | |
2236 | ||
2237 | #endif /* MK67 */ | |
2238 | ||
2239 | /* Check if the emulator exists at task's address space. | |
2240 | */ | |
2241 | boolean_t | |
fba45db2 | 2242 | have_emulator_p (task_t task) |
c906108c | 2243 | { |
c5aa993b | 2244 | kern_return_t ret; |
c906108c | 2245 | #ifndef EMUL_VECTOR_COUNT |
c5aa993b JM |
2246 | vm_offset_t *emulation_vector; |
2247 | int n; | |
c906108c | 2248 | #else |
c5aa993b JM |
2249 | vm_offset_t emulation_vector[EMUL_VECTOR_COUNT]; |
2250 | int n = EMUL_VECTOR_COUNT; | |
c906108c | 2251 | #endif |
c5aa993b JM |
2252 | int i; |
2253 | int vector_start; | |
2254 | ||
c906108c SS |
2255 | ret = task_get_emulation_vector (task, |
2256 | &vector_start, | |
2257 | #ifndef EMUL_VECTOR_COUNT | |
2258 | &emulation_vector, | |
2259 | #else | |
2260 | emulation_vector, | |
2261 | #endif | |
2262 | &n); | |
c5aa993b | 2263 | CHK ("task_get_emulation_vector", ret); |
c906108c SS |
2264 | xx_debug ("%d vectors from %d at 0x%08x\n", |
2265 | n, vector_start, emulation_vector); | |
c5aa993b JM |
2266 | |
2267 | for (i = 0; i < n; i++) | |
c906108c | 2268 | { |
c5aa993b | 2269 | vm_offset_t entry = emulation_vector[i]; |
c906108c SS |
2270 | |
2271 | if (EMULATOR_BASE <= entry && entry <= EMULATOR_END) | |
2272 | return TRUE; | |
2273 | else if (entry) | |
2274 | { | |
2275 | static boolean_t informed = FALSE; | |
2276 | if (!informed) | |
2277 | { | |
c5aa993b JM |
2278 | warning ("Emulation vector address 0x08%x outside emulator space", |
2279 | entry); | |
c906108c SS |
2280 | informed = TRUE; |
2281 | } | |
2282 | } | |
2283 | } | |
2284 | return FALSE; | |
2285 | } | |
2286 | ||
2287 | /* Map cprocs to kernel threads and vice versa. */ | |
2288 | ||
2289 | void | |
fba45db2 KB |
2290 | map_cprocs_to_kernel_threads (gdb_thread_t cprocs, gdb_thread_t mthreads, |
2291 | int thread_count) | |
c906108c SS |
2292 | { |
2293 | int index; | |
2294 | gdb_thread_t scan; | |
2295 | boolean_t all_mapped = TRUE; | |
2296 | LONGEST stack_base; | |
2297 | LONGEST stack_size; | |
2298 | ||
2299 | for (scan = cprocs; scan; scan = scan->next) | |
2300 | { | |
2301 | /* Default to: no kernel thread for this cproc */ | |
2302 | scan->reverse_map = -1; | |
2303 | ||
2304 | /* Check if the cproc is found by its stack */ | |
2305 | for (index = 0; index < thread_count; index++) | |
2306 | { | |
2307 | stack_base = | |
2308 | extract_signed_integer (scan->raw_cproc + CPROC_BASE_OFFSET, | |
2309 | CPROC_BASE_SIZE); | |
c5aa993b | 2310 | stack_size = |
c906108c SS |
2311 | extract_signed_integer (scan->raw_cproc + CPROC_SIZE_OFFSET, |
2312 | CPROC_SIZE_SIZE); | |
2313 | if ((mthreads + index)->sp > stack_base && | |
2314 | (mthreads + index)->sp <= stack_base + stack_size) | |
2315 | { | |
2316 | (mthreads + index)->cproc = scan; | |
2317 | scan->reverse_map = index; | |
2318 | break; | |
2319 | } | |
2320 | } | |
2321 | all_mapped &= (scan->reverse_map != -1); | |
2322 | } | |
2323 | ||
2324 | /* Check for threads that are currently in the emulator. | |
2325 | * If so, they have a different stack, and the still unmapped | |
2326 | * cprocs may well get mapped to these threads. | |
2327 | * | |
2328 | * If: | |
2329 | * - cproc stack does not match any kernel thread stack pointer | |
2330 | * - there is at least one extra kernel thread | |
2331 | * that has no cproc mapped above. | |
2332 | * - some kernel thread stack pointer points to emulator space | |
2333 | * then we find the user stack pointer saved in the emulator | |
2334 | * stack, and try to map that to the cprocs. | |
2335 | * | |
2336 | * Also set in_emulator for kernel threads. | |
c5aa993b | 2337 | */ |
c906108c SS |
2338 | |
2339 | if (emulator_present) | |
2340 | { | |
2341 | for (index = 0; index < thread_count; index++) | |
2342 | { | |
2343 | CORE_ADDR emul_sp; | |
2344 | CORE_ADDR usp; | |
2345 | ||
c5aa993b | 2346 | gdb_thread_t mthread = (mthreads + index); |
c906108c SS |
2347 | emul_sp = mthread->sp; |
2348 | ||
2349 | if (mthread->cproc == NULL && | |
2350 | EMULATOR_BASE <= emul_sp && emul_sp <= EMULATOR_END) | |
2351 | { | |
2352 | mthread->in_emulator = emulator_present; | |
c5aa993b | 2353 | |
c906108c SS |
2354 | if (!all_mapped && cprocs) |
2355 | { | |
2356 | usp = fetch_usp_from_emulator_stack (emul_sp); | |
c5aa993b | 2357 | |
c906108c | 2358 | /* @@ Could be more accurate */ |
c5aa993b | 2359 | if (!usp) |
c906108c | 2360 | error ("Zero stack pointer read from emulator?"); |
c5aa993b | 2361 | |
c906108c SS |
2362 | /* Try to match this stack pointer to the cprocs that |
2363 | * don't yet have a kernel thread. | |
2364 | */ | |
2365 | for (scan = cprocs; scan; scan = scan->next) | |
2366 | { | |
c5aa993b | 2367 | |
c906108c SS |
2368 | /* Check is this unmapped CPROC stack contains |
2369 | * the user stack pointer saved in the | |
2370 | * emulator. | |
2371 | */ | |
2372 | if (scan->reverse_map == -1) | |
2373 | { | |
2374 | stack_base = | |
2375 | extract_signed_integer | |
c5aa993b JM |
2376 | (scan->raw_cproc + CPROC_BASE_OFFSET, |
2377 | CPROC_BASE_SIZE); | |
2378 | stack_size = | |
c906108c | 2379 | extract_signed_integer |
c5aa993b JM |
2380 | (scan->raw_cproc + CPROC_SIZE_OFFSET, |
2381 | CPROC_SIZE_SIZE); | |
c906108c SS |
2382 | if (usp > stack_base && |
2383 | usp <= stack_base + stack_size) | |
2384 | { | |
2385 | mthread->cproc = scan; | |
2386 | scan->reverse_map = index; | |
2387 | break; | |
2388 | } | |
2389 | } | |
2390 | } | |
2391 | } | |
2392 | } | |
2393 | } | |
2394 | } | |
2395 | } | |
2396 | \f | |
2397 | /* | |
2398 | * Format of the thread_list command | |
2399 | * | |
c5aa993b | 2400 | * slot mid sel name emul ks susp cstate wired address |
c906108c SS |
2401 | */ |
2402 | #define TL_FORMAT "%-2.2s %5d%c %-10.10s %1.1s%s%-5.5s %-2.2s %-5.5s " | |
2403 | ||
2404 | #define TL_HEADER "\n@ MID Name KState CState Where\n" | |
2405 | ||
2406 | void | |
fba45db2 | 2407 | print_tl_address (struct ui_file *stream, CORE_ADDR pc) |
c906108c | 2408 | { |
c5aa993b JM |
2409 | if (!lookup_minimal_symbol_by_pc (pc)) |
2410 | fprintf_filtered (stream, local_hex_format (), pc); | |
c906108c SS |
2411 | else |
2412 | { | |
2413 | extern int addressprint; | |
2414 | extern int asm_demangle; | |
2415 | ||
c5aa993b | 2416 | int store = addressprint; |
c906108c SS |
2417 | addressprint = 0; |
2418 | print_address_symbolic (pc, stream, asm_demangle, ""); | |
2419 | addressprint = store; | |
2420 | } | |
2421 | } | |
2422 | \f | |
2423 | /* For thread names, but also for gdb_message_port external name */ | |
2424 | #define MAX_NAME_LEN 50 | |
2425 | ||
2426 | /* Returns the address of variable NAME or 0 if not found */ | |
2427 | CORE_ADDR | |
fba45db2 | 2428 | lookup_address_of_variable (char *name) |
c906108c SS |
2429 | { |
2430 | struct symbol *sym; | |
2431 | CORE_ADDR symaddr = 0; | |
2432 | struct minimal_symbol *msymbol; | |
2433 | ||
2434 | sym = lookup_symbol (name, | |
c5aa993b | 2435 | (struct block *) NULL, |
c906108c | 2436 | VAR_NAMESPACE, |
c5aa993b JM |
2437 | (int *) NULL, |
2438 | (struct symtab **) NULL); | |
c906108c SS |
2439 | |
2440 | if (sym) | |
2441 | symaddr = SYMBOL_VALUE (sym); | |
2442 | ||
c5aa993b | 2443 | if (!symaddr) |
c906108c SS |
2444 | { |
2445 | msymbol = lookup_minimal_symbol (name, NULL, NULL); | |
2446 | ||
2447 | if (msymbol && msymbol->type == mst_data) | |
2448 | symaddr = SYMBOL_VALUE_ADDRESS (msymbol); | |
2449 | } | |
2450 | ||
2451 | return symaddr; | |
2452 | } | |
2453 | ||
2454 | static gdb_thread_t | |
fba45db2 | 2455 | get_cprocs (void) |
c906108c SS |
2456 | { |
2457 | gdb_thread_t cproc_head; | |
2458 | gdb_thread_t cproc_copy; | |
2459 | CORE_ADDR their_cprocs; | |
35fc8285 | 2460 | char *buf; |
c906108c SS |
2461 | char *name; |
2462 | cthread_t cthread; | |
2463 | CORE_ADDR symaddr; | |
c5aa993b | 2464 | |
35fc8285 | 2465 | buf = alloca (TARGET_PTR_BIT / HOST_CHAR_BIT); |
c906108c SS |
2466 | symaddr = lookup_address_of_variable ("cproc_list"); |
2467 | ||
c5aa993b | 2468 | if (!symaddr) |
c906108c SS |
2469 | { |
2470 | /* cproc_list is not in a file compiled with debugging | |
c5aa993b | 2471 | symbols, but don't give up yet */ |
c906108c SS |
2472 | |
2473 | symaddr = lookup_address_of_variable ("cprocs"); | |
2474 | ||
2475 | if (symaddr) | |
2476 | { | |
2477 | static int informed = 0; | |
2478 | if (!informed) | |
2479 | { | |
2480 | informed++; | |
2481 | warning ("Your program is loaded with an old threads library."); | |
2482 | warning ("GDB does not know the old form of threads"); | |
2483 | warning ("so things may not work."); | |
2484 | } | |
2485 | } | |
2486 | } | |
2487 | ||
2488 | /* Stripped or no -lthreads loaded or "cproc_list" is in wrong segment. */ | |
c5aa993b | 2489 | if (!symaddr) |
c906108c SS |
2490 | return NULL; |
2491 | ||
2492 | /* Get the address of the first cproc in the task */ | |
2493 | if (!mach3_read_inferior (symaddr, | |
2494 | buf, | |
2495 | TARGET_PTR_BIT / HOST_CHAR_BIT)) | |
2496 | error ("Can't read cproc master list at address (0x%x).", symaddr); | |
2497 | their_cprocs = extract_address (buf, TARGET_PTR_BIT / HOST_CHAR_BIT); | |
2498 | ||
2499 | /* Scan the CPROCs in the task. | |
2500 | CPROCs are chained with LIST field, not NEXT field, which | |
2501 | chains mutexes, condition variables and queues */ | |
2502 | ||
2503 | cproc_head = NULL; | |
2504 | ||
c5aa993b | 2505 | while (their_cprocs != (CORE_ADDR) 0) |
c906108c SS |
2506 | { |
2507 | CORE_ADDR cproc_copy_incarnation; | |
2508 | cproc_copy = (gdb_thread_t) obstack_alloc (cproc_obstack, | |
2509 | sizeof (struct gdb_thread)); | |
2510 | ||
2511 | if (!mach3_read_inferior (their_cprocs, | |
2512 | &cproc_copy->raw_cproc[0], | |
2513 | CPROC_SIZE)) | |
c5aa993b | 2514 | error ("Can't read next cproc at 0x%x.", their_cprocs); |
c906108c SS |
2515 | |
2516 | their_cprocs = | |
2517 | extract_address (cproc_copy->raw_cproc + CPROC_LIST_OFFSET, | |
2518 | CPROC_LIST_SIZE); | |
2519 | cproc_copy_incarnation = | |
2520 | extract_address (cproc_copy->raw_cproc + CPROC_INCARNATION_OFFSET, | |
2521 | CPROC_INCARNATION_SIZE); | |
2522 | ||
c5aa993b | 2523 | if (cproc_copy_incarnation == (CORE_ADDR) 0) |
c906108c SS |
2524 | cproc_copy->cthread = NULL; |
2525 | else | |
2526 | { | |
2527 | /* This CPROC has an attached CTHREAD. Get its name */ | |
c5aa993b JM |
2528 | cthread = (cthread_t) obstack_alloc (cproc_obstack, |
2529 | sizeof (struct cthread)); | |
c906108c SS |
2530 | |
2531 | if (!mach3_read_inferior (cproc_copy_incarnation, | |
2532 | cthread, | |
c5aa993b JM |
2533 | sizeof (struct cthread))) |
2534 | error ("Can't read next thread at 0x%x.", | |
2535 | cproc_copy_incarnation); | |
c906108c SS |
2536 | |
2537 | cproc_copy->cthread = cthread; | |
2538 | ||
2539 | if (cthread->name) | |
2540 | { | |
2541 | name = (char *) obstack_alloc (cproc_obstack, MAX_NAME_LEN); | |
2542 | ||
c5aa993b JM |
2543 | if (!mach3_read_inferior (cthread->name, name, MAX_NAME_LEN)) |
2544 | error ("Can't read next thread's name at 0x%x.", cthread->name); | |
c906108c SS |
2545 | |
2546 | cthread->name = name; | |
2547 | } | |
2548 | } | |
2549 | ||
2550 | /* insert in front */ | |
2551 | cproc_copy->next = cproc_head; | |
2552 | cproc_head = cproc_copy; | |
2553 | } | |
2554 | return cproc_head; | |
2555 | } | |
2556 | ||
2557 | #ifndef FETCH_CPROC_STATE | |
2558 | /* | |
2559 | * Check if your machine does not grok the way this routine | |
2560 | * fetches the FP,PC and SP of a cproc that is not | |
2561 | * currently attached to any kernel thread (e.g. its cproc.context | |
2562 | * field points to the place in stack where the context | |
2563 | * is saved). | |
2564 | * | |
2565 | * If it doesn't, define your own routine. | |
2566 | */ | |
2567 | #define FETCH_CPROC_STATE(mth) mach3_cproc_state (mth) | |
2568 | ||
2569 | int | |
fba45db2 | 2570 | mach3_cproc_state (gdb_thread_t mthread) |
c906108c SS |
2571 | { |
2572 | int context; | |
2573 | ||
c5aa993b | 2574 | if (!mthread || !mthread->cproc) |
c906108c SS |
2575 | return -1; |
2576 | ||
2577 | context = extract_signed_integer | |
2578 | (mthread->cproc->raw_cproc + CPROC_CONTEXT_OFFSET, | |
2579 | CPROC_CONTEXT_SIZE); | |
2580 | if (context == 0) | |
2581 | return -1; | |
2582 | ||
2583 | mthread->sp = context + MACHINE_CPROC_SP_OFFSET; | |
2584 | ||
2585 | if (mach3_read_inferior (context + MACHINE_CPROC_PC_OFFSET, | |
2586 | &mthread->pc, | |
2587 | sizeof (CORE_ADDR)) != sizeof (CORE_ADDR)) | |
2588 | { | |
2589 | warning ("Can't read cproc pc from inferior"); | |
2590 | return -1; | |
2591 | } | |
2592 | ||
2593 | if (mach3_read_inferior (context + MACHINE_CPROC_FP_OFFSET, | |
2594 | &mthread->fp, | |
2595 | sizeof (CORE_ADDR)) != sizeof (CORE_ADDR)) | |
2596 | { | |
2597 | warning ("Can't read cproc fp from inferior"); | |
2598 | return -1; | |
2599 | } | |
2600 | ||
2601 | return 0; | |
2602 | } | |
2603 | #endif /* FETCH_CPROC_STATE */ | |
c906108c | 2604 | \f |
c5aa993b | 2605 | |
c906108c | 2606 | void |
fba45db2 | 2607 | thread_list_command (void) |
c906108c SS |
2608 | { |
2609 | thread_basic_info_data_t ths; | |
c5aa993b | 2610 | int thread_count; |
c906108c SS |
2611 | gdb_thread_t cprocs; |
2612 | gdb_thread_t scan; | |
c5aa993b JM |
2613 | int index; |
2614 | char *name; | |
2615 | char selected; | |
2616 | char *wired; | |
2617 | int infoCnt; | |
c906108c | 2618 | kern_return_t ret; |
c5aa993b JM |
2619 | mach_port_t mid_or_port; |
2620 | gdb_thread_t their_threads; | |
2621 | gdb_thread_t kthread; | |
c906108c SS |
2622 | |
2623 | int neworder = 1; | |
2624 | ||
2625 | char *fmt = "There are %d kernel threads in task %d.\n"; | |
c5aa993b | 2626 | |
c906108c | 2627 | int tmid = map_port_name_to_mid (inferior_task, MACH_TYPE_TASK); |
c5aa993b | 2628 | |
c906108c | 2629 | MACH_ERROR_NO_INFERIOR; |
c5aa993b | 2630 | |
c906108c SS |
2631 | thread_count = fetch_thread_info (inferior_task, |
2632 | &their_threads); | |
2633 | if (thread_count == -1) | |
2634 | return; | |
c5aa993b | 2635 | |
c906108c SS |
2636 | if (thread_count == 1) |
2637 | fmt = "There is %d kernel thread in task %d.\n"; | |
c5aa993b | 2638 | |
c906108c | 2639 | printf_filtered (fmt, thread_count, tmid); |
c5aa993b | 2640 | |
c906108c | 2641 | puts_filtered (TL_HEADER); |
c5aa993b JM |
2642 | |
2643 | cprocs = get_cprocs (); | |
2644 | ||
c906108c | 2645 | map_cprocs_to_kernel_threads (cprocs, their_threads, thread_count); |
c5aa993b | 2646 | |
c906108c SS |
2647 | for (scan = cprocs; scan; scan = scan->next) |
2648 | { | |
2649 | int mid; | |
2650 | char buf[10]; | |
2651 | char slot[3]; | |
2652 | int cproc_state = | |
c5aa993b JM |
2653 | extract_signed_integer |
2654 | (scan->raw_cproc + CPROC_STATE_OFFSET, CPROC_STATE_SIZE); | |
2655 | ||
c906108c | 2656 | selected = ' '; |
c5aa993b | 2657 | |
c906108c SS |
2658 | /* a wired cproc? */ |
2659 | wired = (extract_address (scan->raw_cproc + CPROC_WIRED_OFFSET, | |
2660 | CPROC_WIRED_SIZE) | |
2661 | ? "wired" : ""); | |
2662 | ||
2663 | if (scan->reverse_map != -1) | |
c5aa993b | 2664 | kthread = (their_threads + scan->reverse_map); |
c906108c | 2665 | else |
c5aa993b | 2666 | kthread = NULL; |
c906108c SS |
2667 | |
2668 | if (kthread) | |
2669 | { | |
2670 | /* These cprocs have a kernel thread */ | |
c5aa993b | 2671 | |
c906108c | 2672 | mid = map_port_name_to_mid (kthread->name, MACH_TYPE_THREAD); |
c5aa993b | 2673 | |
c906108c | 2674 | infoCnt = THREAD_BASIC_INFO_COUNT; |
c5aa993b | 2675 | |
c906108c SS |
2676 | ret = thread_info (kthread->name, |
2677 | THREAD_BASIC_INFO, | |
c5aa993b | 2678 | (thread_info_t) & ths, |
c906108c | 2679 | &infoCnt); |
c5aa993b | 2680 | |
c906108c SS |
2681 | if (ret != KERN_SUCCESS) |
2682 | { | |
2683 | warning ("Unable to get basic info on thread %d : %s", | |
2684 | mid, | |
2685 | mach_error_string (ret)); | |
2686 | continue; | |
2687 | } | |
2688 | ||
2689 | /* Who is the first to have more than 100 threads */ | |
c5aa993b | 2690 | sprintf (slot, "%d", kthread->slotid % 100); |
c906108c SS |
2691 | |
2692 | if (kthread->name == current_thread) | |
2693 | selected = '*'; | |
c5aa993b | 2694 | |
c906108c SS |
2695 | if (ths.suspend_count) |
2696 | sprintf (buf, "%d", ths.suspend_count); | |
2697 | else | |
2698 | buf[0] = '\000'; | |
2699 | ||
2700 | #if 0 | |
2701 | if (ths.flags & TH_FLAGS_SWAPPED) | |
2702 | strcat (buf, "S"); | |
2703 | #endif | |
2704 | ||
2705 | if (ths.flags & TH_FLAGS_IDLE) | |
2706 | strcat (buf, "I"); | |
2707 | ||
2708 | printf_filtered (TL_FORMAT, | |
2709 | slot, | |
2710 | mid, | |
2711 | selected, | |
2712 | get_thread_name (scan, kthread->slotid), | |
2713 | kthread->in_emulator ? "E" : "", | |
2714 | translate_state (ths.run_state), | |
2715 | buf, | |
2716 | translate_cstate (cproc_state), | |
2717 | wired); | |
2718 | print_tl_address (gdb_stdout, kthread->pc); | |
2719 | } | |
2720 | else | |
2721 | { | |
2722 | /* These cprocs don't have a kernel thread. | |
2723 | * find out the calling frame with | |
2724 | * FETCH_CPROC_STATE. | |
2725 | */ | |
2726 | ||
2727 | struct gdb_thread state; | |
2728 | ||
2729 | #if 0 | |
2730 | /* jtv -> emcmanus: why do you want this here? */ | |
2731 | if (scan->incarnation == NULL) | |
c5aa993b | 2732 | continue; /* EMcM */ |
c906108c SS |
2733 | #endif |
2734 | ||
2735 | printf_filtered (TL_FORMAT, | |
2736 | "-", | |
2737 | -neworder, /* Pseudo MID */ | |
2738 | selected, | |
2739 | get_thread_name (scan, -neworder), | |
2740 | "", | |
2741 | "-", /* kernel state */ | |
2742 | "", | |
2743 | translate_cstate (cproc_state), | |
2744 | ""); | |
2745 | state.cproc = scan; | |
2746 | ||
2747 | if (FETCH_CPROC_STATE (&state) == -1) | |
2748 | puts_filtered ("???"); | |
2749 | else | |
2750 | print_tl_address (gdb_stdout, state.pc); | |
2751 | ||
2752 | neworder++; | |
2753 | } | |
2754 | puts_filtered ("\n"); | |
2755 | } | |
c5aa993b | 2756 | |
c906108c SS |
2757 | /* Scan for kernel threads without cprocs */ |
2758 | for (index = 0; index < thread_count; index++) | |
2759 | { | |
c5aa993b | 2760 | if (!their_threads[index].cproc) |
c906108c SS |
2761 | { |
2762 | int mid; | |
c5aa993b | 2763 | |
c906108c SS |
2764 | char buf[10]; |
2765 | char slot[3]; | |
2766 | ||
2767 | mach_port_t name = their_threads[index].name; | |
c5aa993b | 2768 | |
c906108c | 2769 | mid = map_port_name_to_mid (name, MACH_TYPE_THREAD); |
c5aa993b | 2770 | |
c906108c | 2771 | infoCnt = THREAD_BASIC_INFO_COUNT; |
c5aa993b JM |
2772 | |
2773 | ret = thread_info (name, | |
2774 | THREAD_BASIC_INFO, | |
2775 | (thread_info_t) & ths, | |
2776 | &infoCnt); | |
2777 | ||
c906108c SS |
2778 | if (ret != KERN_SUCCESS) |
2779 | { | |
2780 | warning ("Unable to get basic info on thread %d : %s", | |
2781 | mid, | |
2782 | mach_error_string (ret)); | |
2783 | continue; | |
2784 | } | |
2785 | ||
c5aa993b | 2786 | sprintf (slot, "%d", index % 100); |
c906108c SS |
2787 | |
2788 | if (name == current_thread) | |
2789 | selected = '*'; | |
2790 | else | |
2791 | selected = ' '; | |
2792 | ||
2793 | if (ths.suspend_count) | |
2794 | sprintf (buf, "%d", ths.suspend_count); | |
2795 | else | |
2796 | buf[0] = '\000'; | |
2797 | ||
2798 | #if 0 | |
2799 | if (ths.flags & TH_FLAGS_SWAPPED) | |
2800 | strcat (buf, "S"); | |
2801 | #endif | |
2802 | ||
2803 | if (ths.flags & TH_FLAGS_IDLE) | |
2804 | strcat (buf, "I"); | |
2805 | ||
2806 | printf_filtered (TL_FORMAT, | |
2807 | slot, | |
2808 | mid, | |
2809 | selected, | |
2810 | get_thread_name (NULL, index), | |
2811 | their_threads[index].in_emulator ? "E" : "", | |
2812 | translate_state (ths.run_state), | |
2813 | buf, | |
c5aa993b | 2814 | "", /* No cproc state */ |
c906108c SS |
2815 | ""); /* Can't be wired */ |
2816 | print_tl_address (gdb_stdout, their_threads[index].pc); | |
2817 | puts_filtered ("\n"); | |
2818 | } | |
2819 | } | |
c5aa993b | 2820 | |
c906108c SS |
2821 | obstack_free (cproc_obstack, 0); |
2822 | obstack_init (cproc_obstack); | |
2823 | } | |
2824 | \f | |
2825 | void | |
fba45db2 | 2826 | thread_select_command (char *args, int from_tty) |
c906108c SS |
2827 | { |
2828 | int mid; | |
2829 | thread_array_t thread_list; | |
2830 | int thread_count; | |
2831 | kern_return_t ret; | |
2832 | int is_slot = 0; | |
2833 | ||
2834 | MACH_ERROR_NO_INFERIOR; | |
2835 | ||
2836 | if (!args) | |
2837 | error_no_arg ("MID or @SLOTNUMBER to specify a thread to select"); | |
2838 | ||
2839 | while (*args == ' ' || *args == '\t') | |
2840 | args++; | |
2841 | ||
2842 | if (*args == '@') | |
2843 | { | |
2844 | is_slot++; | |
2845 | args++; | |
2846 | } | |
2847 | ||
c5aa993b | 2848 | mid = atoi (args); |
c906108c SS |
2849 | |
2850 | if (mid == 0) | |
c5aa993b | 2851 | if (!is_slot || *args != '0') /* Rudimentary checks */ |
c906108c SS |
2852 | error ("You must select threads by MID or @SLOTNUMBER"); |
2853 | ||
c5aa993b | 2854 | if (select_thread (inferior_task, mid, is_slot ? 2 : 1) != KERN_SUCCESS) |
c906108c SS |
2855 | return; |
2856 | ||
2857 | if (from_tty) | |
2858 | printf_filtered ("Thread %d selected\n", | |
2859 | is_slot ? map_port_name_to_mid (current_thread, | |
c5aa993b | 2860 | MACH_TYPE_THREAD) : mid); |
c906108c SS |
2861 | } |
2862 | \f | |
fba45db2 | 2863 | thread_trace (mach_port_t thread, boolean_t set) |
c906108c | 2864 | { |
c5aa993b JM |
2865 | int flavor = TRACE_FLAVOR; |
2866 | unsigned int stateCnt = TRACE_FLAVOR_SIZE; | |
2867 | kern_return_t ret; | |
2868 | thread_state_data_t state; | |
c906108c | 2869 | |
c5aa993b | 2870 | if (!MACH_PORT_VALID (thread)) |
c906108c SS |
2871 | { |
2872 | warning ("thread_trace: invalid thread"); | |
2873 | return; | |
2874 | } | |
2875 | ||
2876 | if (must_suspend_thread) | |
2877 | setup_thread (thread, 1); | |
2878 | ||
c5aa993b | 2879 | ret = thread_get_state (thread, flavor, state, &stateCnt); |
c906108c | 2880 | CHK ("thread_trace: error reading thread state", ret); |
c5aa993b | 2881 | |
c906108c SS |
2882 | if (set) |
2883 | { | |
2884 | TRACE_SET (thread, state); | |
2885 | } | |
2886 | else | |
2887 | { | |
c5aa993b | 2888 | if (!TRACE_CLEAR (thread, state)) |
c906108c SS |
2889 | { |
2890 | if (must_suspend_thread) | |
2891 | setup_thread (thread, 0); | |
2892 | return; | |
2893 | } | |
2894 | } | |
2895 | ||
c5aa993b | 2896 | ret = thread_set_state (thread, flavor, state, stateCnt); |
c906108c SS |
2897 | CHK ("thread_trace: error writing thread state", ret); |
2898 | if (must_suspend_thread) | |
2899 | setup_thread (thread, 0); | |
c5aa993b | 2900 | } |
c906108c SS |
2901 | |
2902 | #ifdef FLUSH_INFERIOR_CACHE | |
2903 | ||
2904 | /* When over-writing code on some machines the I-Cache must be flushed | |
2905 | explicitly, because it is not kept coherent by the lazy hardware. | |
2906 | This definitely includes breakpoints, for instance, or else we | |
2907 | end up looping in mysterious Bpt traps */ | |
2908 | ||
fba45db2 | 2909 | flush_inferior_icache (CORE_ADDR pc, int amount) |
c906108c SS |
2910 | { |
2911 | vm_machine_attribute_val_t flush = MATTR_VAL_ICACHE_FLUSH; | |
c5aa993b JM |
2912 | kern_return_t ret; |
2913 | ||
c906108c SS |
2914 | ret = vm_machine_attribute (inferior_task, |
2915 | pc, | |
2916 | amount, | |
2917 | MATTR_CACHE, | |
2918 | &flush); | |
2919 | if (ret != KERN_SUCCESS) | |
2920 | warning ("Error flushing inferior's cache : %s", | |
2921 | mach_error_string (ret)); | |
2922 | } | |
c5aa993b | 2923 | #endif /* FLUSH_INFERIOR_CACHE */ |
c906108c | 2924 | \f |
c5aa993b | 2925 | |
c906108c | 2926 | static |
fba45db2 | 2927 | suspend_all_threads (int from_tty) |
c906108c | 2928 | { |
c5aa993b JM |
2929 | kern_return_t ret; |
2930 | thread_array_t thread_list; | |
2931 | int thread_count, index; | |
2932 | int infoCnt; | |
c906108c SS |
2933 | thread_basic_info_data_t th_info; |
2934 | ||
c5aa993b | 2935 | |
c906108c SS |
2936 | ret = task_threads (inferior_task, &thread_list, &thread_count); |
2937 | if (ret != KERN_SUCCESS) | |
2938 | { | |
2939 | warning ("Could not suspend inferior threads."); | |
2940 | m3_kill_inferior (); | |
2941 | return_to_top_level (RETURN_ERROR); | |
2942 | } | |
c5aa993b | 2943 | |
c906108c SS |
2944 | for (index = 0; index < thread_count; index++) |
2945 | { | |
2946 | int mid; | |
2947 | ||
c5aa993b | 2948 | mid = map_port_name_to_mid (thread_list[index], |
c906108c | 2949 | MACH_TYPE_THREAD); |
c5aa993b JM |
2950 | |
2951 | ret = thread_suspend (thread_list[index]); | |
c906108c SS |
2952 | |
2953 | if (ret != KERN_SUCCESS) | |
2954 | warning ("Error trying to suspend thread %d : %s", | |
2955 | mid, mach_error_string (ret)); | |
2956 | ||
2957 | if (from_tty) | |
2958 | { | |
2959 | infoCnt = THREAD_BASIC_INFO_COUNT; | |
c5aa993b | 2960 | ret = thread_info (thread_list[index], |
c906108c | 2961 | THREAD_BASIC_INFO, |
c5aa993b | 2962 | (thread_info_t) & th_info, |
c906108c SS |
2963 | &infoCnt); |
2964 | CHK ("suspend can't get thread info", ret); | |
c5aa993b | 2965 | |
c906108c SS |
2966 | warning ("Thread %d suspend count is %d", |
2967 | mid, th_info.suspend_count); | |
2968 | } | |
2969 | } | |
2970 | ||
2971 | consume_send_rights (thread_list, thread_count); | |
c5aa993b JM |
2972 | ret = vm_deallocate (mach_task_self (), |
2973 | (vm_address_t) thread_list, | |
2974 | (thread_count * sizeof (int))); | |
c906108c SS |
2975 | CHK ("Error trying to deallocate thread list", ret); |
2976 | } | |
2977 | ||
2978 | void | |
fba45db2 | 2979 | thread_suspend_command (char *args, int from_tty) |
c906108c SS |
2980 | { |
2981 | kern_return_t ret; | |
c5aa993b JM |
2982 | int mid; |
2983 | mach_port_t saved_thread; | |
2984 | int infoCnt; | |
c906108c | 2985 | thread_basic_info_data_t th_info; |
c5aa993b | 2986 | |
c906108c SS |
2987 | MACH_ERROR_NO_INFERIOR; |
2988 | ||
c5aa993b JM |
2989 | if (!strcasecmp (args, "all")) |
2990 | { | |
2991 | suspend_all_threads (from_tty); | |
2992 | return; | |
2993 | } | |
c906108c SS |
2994 | |
2995 | saved_thread = current_thread; | |
2996 | ||
2997 | mid = parse_thread_id (args, 0, 0); | |
2998 | ||
2999 | if (mid < 0) | |
3000 | error ("You can suspend only existing kernel threads with MID or @SLOTNUMBER"); | |
3001 | ||
3002 | if (mid == 0) | |
3003 | mid = map_port_name_to_mid (current_thread, MACH_TYPE_THREAD); | |
c5aa993b JM |
3004 | else if (select_thread (inferior_task, mid, 0) != KERN_SUCCESS) |
3005 | { | |
3006 | if (current_thread) | |
3007 | current_thread = saved_thread; | |
3008 | error ("Could not select thread %d", mid); | |
3009 | } | |
c906108c SS |
3010 | |
3011 | ret = thread_suspend (current_thread); | |
3012 | if (ret != KERN_SUCCESS) | |
3013 | warning ("thread_suspend failed : %s", | |
3014 | mach_error_string (ret)); | |
3015 | ||
3016 | infoCnt = THREAD_BASIC_INFO_COUNT; | |
3017 | ret = thread_info (current_thread, | |
3018 | THREAD_BASIC_INFO, | |
c5aa993b | 3019 | (thread_info_t) & th_info, |
c906108c SS |
3020 | &infoCnt); |
3021 | CHK ("suspend can't get thread info", ret); | |
c5aa993b | 3022 | |
c906108c | 3023 | warning ("Thread %d suspend count is %d", mid, th_info.suspend_count); |
c5aa993b | 3024 | |
c906108c SS |
3025 | current_thread = saved_thread; |
3026 | } | |
3027 | ||
fba45db2 | 3028 | resume_all_threads (int from_tty) |
c906108c | 3029 | { |
c5aa993b JM |
3030 | kern_return_t ret; |
3031 | thread_array_t thread_list; | |
3032 | int thread_count, index; | |
3033 | int mid; | |
3034 | int infoCnt; | |
3035 | thread_basic_info_data_t th_info; | |
c906108c | 3036 | |
c5aa993b JM |
3037 | ret = task_threads (inferior_task, &thread_list, &thread_count); |
3038 | if (ret != KERN_SUCCESS) | |
3039 | { | |
3040 | m3_kill_inferior (); | |
3041 | error ("task_threads", mach_error_string (ret)); | |
3042 | } | |
c906108c | 3043 | |
c5aa993b JM |
3044 | for (index = 0; index < thread_count; index++) |
3045 | { | |
3046 | infoCnt = THREAD_BASIC_INFO_COUNT; | |
3047 | ret = thread_info (thread_list[index], | |
3048 | THREAD_BASIC_INFO, | |
3049 | (thread_info_t) & th_info, | |
3050 | &infoCnt); | |
3051 | CHK ("resume_all can't get thread info", ret); | |
c906108c | 3052 | |
c5aa993b JM |
3053 | mid = map_port_name_to_mid (thread_list[index], |
3054 | MACH_TYPE_THREAD); | |
c906108c | 3055 | |
c5aa993b JM |
3056 | if (!th_info.suspend_count) |
3057 | { | |
3058 | if (mid != -1 && from_tty) | |
3059 | warning ("Thread %d is not suspended", mid); | |
3060 | continue; | |
3061 | } | |
c906108c | 3062 | |
c5aa993b JM |
3063 | ret = thread_resume (thread_list[index]); |
3064 | ||
3065 | if (ret != KERN_SUCCESS) | |
3066 | warning ("Error trying to resume thread %d : %s", | |
3067 | mid, mach_error_string (ret)); | |
3068 | else if (mid != -1 && from_tty) | |
3069 | warning ("Thread %d suspend count is %d", | |
3070 | mid, --th_info.suspend_count); | |
3071 | } | |
3072 | ||
3073 | consume_send_rights (thread_list, thread_count); | |
3074 | ret = vm_deallocate (mach_task_self (), | |
3075 | (vm_address_t) thread_list, | |
3076 | (thread_count * sizeof (int))); | |
3077 | CHK ("Error trying to deallocate thread list", ret); | |
c906108c SS |
3078 | } |
3079 | ||
3080 | void | |
fba45db2 | 3081 | thread_resume_command (char *args, int from_tty) |
c906108c SS |
3082 | { |
3083 | int mid; | |
3084 | mach_port_t saved_thread; | |
3085 | kern_return_t ret; | |
3086 | thread_basic_info_data_t th_info; | |
3087 | int infoCnt = THREAD_BASIC_INFO_COUNT; | |
c5aa993b | 3088 | |
c906108c SS |
3089 | MACH_ERROR_NO_INFERIOR; |
3090 | ||
c5aa993b JM |
3091 | if (!strcasecmp (args, "all")) |
3092 | { | |
3093 | resume_all_threads (from_tty); | |
3094 | return; | |
3095 | } | |
c906108c SS |
3096 | |
3097 | saved_thread = current_thread; | |
3098 | ||
3099 | mid = parse_thread_id (args, 0, 0); | |
3100 | ||
3101 | if (mid < 0) | |
3102 | error ("You can resume only existing kernel threads with MID or @SLOTNUMBER"); | |
3103 | ||
3104 | if (mid == 0) | |
3105 | mid = map_port_name_to_mid (current_thread, MACH_TYPE_THREAD); | |
c5aa993b JM |
3106 | else if (select_thread (inferior_task, mid, 0) != KERN_SUCCESS) |
3107 | { | |
3108 | if (current_thread) | |
3109 | current_thread = saved_thread; | |
3110 | return_to_top_level (RETURN_ERROR); | |
3111 | } | |
c906108c SS |
3112 | |
3113 | ret = thread_info (current_thread, | |
3114 | THREAD_BASIC_INFO, | |
c5aa993b | 3115 | (thread_info_t) & th_info, |
c906108c SS |
3116 | &infoCnt); |
3117 | CHK ("resume can't get thread info", ret); | |
c5aa993b JM |
3118 | |
3119 | if (!th_info.suspend_count) | |
c906108c SS |
3120 | { |
3121 | warning ("Thread %d is not suspended", mid); | |
3122 | goto out; | |
3123 | } | |
3124 | ||
3125 | ret = thread_resume (current_thread); | |
3126 | if (ret != KERN_SUCCESS) | |
3127 | warning ("thread_resume failed : %s", | |
3128 | mach_error_string (ret)); | |
3129 | else | |
3130 | { | |
3131 | th_info.suspend_count--; | |
3132 | warning ("Thread %d suspend count is %d", mid, th_info.suspend_count); | |
3133 | } | |
c5aa993b JM |
3134 | |
3135 | out: | |
c906108c SS |
3136 | current_thread = saved_thread; |
3137 | } | |
3138 | ||
3139 | void | |
fba45db2 | 3140 | thread_kill_command (char *args, int from_tty) |
c906108c SS |
3141 | { |
3142 | int mid; | |
3143 | kern_return_t ret; | |
3144 | int thread_count; | |
3145 | thread_array_t thread_table; | |
c5aa993b | 3146 | int index; |
c906108c | 3147 | mach_port_t thread_to_kill = MACH_PORT_NULL; |
c5aa993b JM |
3148 | |
3149 | ||
c906108c SS |
3150 | MACH_ERROR_NO_INFERIOR; |
3151 | ||
3152 | if (!args) | |
3153 | error_no_arg ("thread mid to kill from the inferior task"); | |
3154 | ||
3155 | mid = parse_thread_id (args, 0, 0); | |
3156 | ||
3157 | if (mid < 0) | |
3158 | error ("You can kill only existing kernel threads with MID or @SLOTNUMBER"); | |
3159 | ||
3160 | if (mid) | |
3161 | { | |
3162 | ret = machid_mach_port (mid_server, mid_auth, mid, &thread_to_kill); | |
3163 | CHK ("thread_kill_command: machid_mach_port map failed", ret); | |
3164 | } | |
3165 | else | |
3166 | mid = map_port_name_to_mid (current_thread, MACH_TYPE_THREAD); | |
c5aa993b | 3167 | |
c906108c SS |
3168 | /* Don't allow gdb to kill *any* thread in the system. Use mkill program for that */ |
3169 | ret = task_threads (inferior_task, &thread_table, &thread_count); | |
3170 | CHK ("Error getting inferior's thread list", ret); | |
c5aa993b | 3171 | |
c906108c SS |
3172 | if (thread_to_kill == current_thread) |
3173 | { | |
3174 | ret = thread_terminate (thread_to_kill); | |
3175 | CHK ("Thread could not be terminated", ret); | |
3176 | ||
3177 | if (select_thread (inferior_task, 0, 1) != KERN_SUCCESS) | |
3178 | warning ("Last thread was killed, use \"kill\" command to kill task"); | |
3179 | } | |
3180 | else | |
3181 | for (index = 0; index < thread_count; index++) | |
c5aa993b | 3182 | if (thread_table[index] == thread_to_kill) |
c906108c SS |
3183 | { |
3184 | ret = thread_terminate (thread_to_kill); | |
3185 | CHK ("Thread could not be terminated", ret); | |
3186 | } | |
3187 | ||
3188 | if (thread_count > 1) | |
3189 | consume_send_rights (thread_table, thread_count); | |
c5aa993b JM |
3190 | |
3191 | ret = vm_deallocate (mach_task_self (), (vm_address_t) thread_table, | |
3192 | (thread_count * sizeof (mach_port_t))); | |
c906108c | 3193 | CHK ("Error trying to deallocate thread list", ret); |
c5aa993b | 3194 | |
c906108c SS |
3195 | warning ("Thread %d killed", mid); |
3196 | } | |
c906108c | 3197 | \f |
c5aa993b | 3198 | |
c906108c SS |
3199 | /* Task specific commands; add more if you like */ |
3200 | ||
3201 | void | |
fba45db2 | 3202 | task_resume_command (char *args, int from_tty) |
c906108c SS |
3203 | { |
3204 | kern_return_t ret; | |
3205 | task_basic_info_data_t ta_info; | |
3206 | int infoCnt = TASK_BASIC_INFO_COUNT; | |
3207 | int mid = map_port_name_to_mid (inferior_task, MACH_TYPE_TASK); | |
c5aa993b | 3208 | |
c906108c SS |
3209 | MACH_ERROR_NO_INFERIOR; |
3210 | ||
3211 | /* Would be trivial to change, but is it desirable? */ | |
3212 | if (args) | |
3213 | error ("Currently gdb can resume only it's inferior task"); | |
3214 | ||
3215 | ret = task_info (inferior_task, | |
3216 | TASK_BASIC_INFO, | |
c5aa993b | 3217 | (task_info_t) & ta_info, |
c906108c SS |
3218 | &infoCnt); |
3219 | CHK ("task_resume_command: task_info failed", ret); | |
c5aa993b | 3220 | |
c906108c SS |
3221 | if (ta_info.suspend_count == 0) |
3222 | error ("Inferior task %d is not suspended", mid); | |
3223 | else if (ta_info.suspend_count == 1 && | |
3224 | from_tty && | |
c5aa993b | 3225 | !query ("Suspend count is now 1. Do you know what you are doing? ")) |
c906108c SS |
3226 | error ("Task not resumed"); |
3227 | ||
3228 | ret = task_resume (inferior_task); | |
3229 | CHK ("task_resume_command: task_resume", ret); | |
3230 | ||
3231 | if (ta_info.suspend_count == 1) | |
3232 | { | |
3233 | warning ("Inferior task %d is no longer suspended", mid); | |
3234 | must_suspend_thread = 1; | |
3235 | /* @@ This is not complete: Registers change all the time when not | |
c5aa993b | 3236 | suspended! */ |
c906108c SS |
3237 | registers_changed (); |
3238 | } | |
3239 | else | |
3240 | warning ("Inferior task %d suspend count is now %d", | |
c5aa993b | 3241 | mid, ta_info.suspend_count - 1); |
c906108c SS |
3242 | } |
3243 | ||
3244 | ||
3245 | void | |
fba45db2 | 3246 | task_suspend_command (char *args, int from_tty) |
c906108c SS |
3247 | { |
3248 | kern_return_t ret; | |
3249 | task_basic_info_data_t ta_info; | |
3250 | int infoCnt = TASK_BASIC_INFO_COUNT; | |
3251 | int mid = map_port_name_to_mid (inferior_task, MACH_TYPE_TASK); | |
c5aa993b | 3252 | |
c906108c SS |
3253 | MACH_ERROR_NO_INFERIOR; |
3254 | ||
3255 | /* Would be trivial to change, but is it desirable? */ | |
3256 | if (args) | |
3257 | error ("Currently gdb can suspend only it's inferior task"); | |
3258 | ||
3259 | ret = task_suspend (inferior_task); | |
3260 | CHK ("task_suspend_command: task_suspend", ret); | |
3261 | ||
3262 | must_suspend_thread = 0; | |
3263 | ||
3264 | ret = task_info (inferior_task, | |
3265 | TASK_BASIC_INFO, | |
c5aa993b | 3266 | (task_info_t) & ta_info, |
c906108c SS |
3267 | &infoCnt); |
3268 | CHK ("task_suspend_command: task_info failed", ret); | |
c5aa993b | 3269 | |
c906108c SS |
3270 | warning ("Inferior task %d suspend count is now %d", |
3271 | mid, ta_info.suspend_count); | |
3272 | } | |
3273 | ||
3274 | static char * | |
fba45db2 | 3275 | get_size (int bytes) |
c906108c | 3276 | { |
c5aa993b JM |
3277 | static char size[30]; |
3278 | int zz = bytes / 1024; | |
c906108c SS |
3279 | |
3280 | if (zz / 1024) | |
c5aa993b | 3281 | sprintf (size, "%-2.1f M", ((float) bytes) / (1024.0 * 1024.0)); |
c906108c SS |
3282 | else |
3283 | sprintf (size, "%d K", zz); | |
3284 | ||
3285 | return size; | |
3286 | } | |
3287 | ||
3288 | /* Does this require the target task to be suspended?? I don't think so. */ | |
3289 | void | |
fba45db2 | 3290 | task_info_command (char *args, int from_tty) |
c906108c SS |
3291 | { |
3292 | int mid = -5; | |
3293 | mach_port_t task; | |
3294 | kern_return_t ret; | |
3295 | task_basic_info_data_t ta_info; | |
3296 | int infoCnt = TASK_BASIC_INFO_COUNT; | |
c5aa993b | 3297 | int page_size = round_page (1); |
c906108c | 3298 | int thread_count = 0; |
c5aa993b | 3299 | |
c906108c SS |
3300 | if (MACH_PORT_VALID (inferior_task)) |
3301 | mid = map_port_name_to_mid (inferior_task, | |
3302 | MACH_TYPE_TASK); | |
3303 | ||
3304 | task = inferior_task; | |
3305 | ||
3306 | if (args) | |
3307 | { | |
3308 | int tmid = atoi (args); | |
3309 | ||
3310 | if (tmid <= 0) | |
3311 | error ("Invalid mid %d for task info", tmid); | |
3312 | ||
3313 | if (tmid != mid) | |
3314 | { | |
3315 | mid = tmid; | |
3316 | ret = machid_mach_port (mid_server, mid_auth, tmid, &task); | |
3317 | CHK ("task_info_command: machid_mach_port map failed", ret); | |
3318 | } | |
3319 | } | |
3320 | ||
3321 | if (mid < 0) | |
3322 | error ("You have to give the task MID as an argument"); | |
3323 | ||
3324 | ret = task_info (task, | |
3325 | TASK_BASIC_INFO, | |
c5aa993b | 3326 | (task_info_t) & ta_info, |
c906108c SS |
3327 | &infoCnt); |
3328 | CHK ("task_info_command: task_info failed", ret); | |
3329 | ||
3330 | printf_filtered ("\nTask info for task %d:\n\n", mid); | |
3331 | printf_filtered (" Suspend count : %d\n", ta_info.suspend_count); | |
3332 | printf_filtered (" Base priority : %d\n", ta_info.base_priority); | |
3333 | printf_filtered (" Virtual size : %s\n", get_size (ta_info.virtual_size)); | |
3334 | printf_filtered (" Resident size : %s\n", get_size (ta_info.resident_size)); | |
3335 | ||
3336 | { | |
3337 | thread_array_t thread_list; | |
c5aa993b | 3338 | |
c906108c SS |
3339 | ret = task_threads (task, &thread_list, &thread_count); |
3340 | CHK ("task_info_command: task_threads", ret); | |
c5aa993b | 3341 | |
c906108c SS |
3342 | printf_filtered (" Thread count : %d\n", thread_count); |
3343 | ||
3344 | consume_send_rights (thread_list, thread_count); | |
c5aa993b JM |
3345 | ret = vm_deallocate (mach_task_self (), |
3346 | (vm_address_t) thread_list, | |
3347 | (thread_count * sizeof (int))); | |
3348 | CHK ("Error trying to deallocate thread list", ret); | |
c906108c SS |
3349 | } |
3350 | if (have_emulator_p (task)) | |
3351 | printf_filtered (" Emulator at : 0x%x..0x%x\n", | |
3352 | EMULATOR_BASE, EMULATOR_END); | |
3353 | else | |
3354 | printf_filtered (" No emulator.\n"); | |
3355 | ||
3356 | if (thread_count && task == inferior_task) | |
3357 | printf_filtered ("\nUse the \"thread list\" command to see the threads\n"); | |
3358 | } | |
3359 | \f | |
3360 | /* You may either FORWARD the exception to the inferior, or KEEP | |
3361 | * it and return to GDB command level. | |
3362 | * | |
3363 | * exception mid [ forward | keep ] | |
3364 | */ | |
3365 | ||
3366 | static void | |
fba45db2 | 3367 | exception_command (char *args, int from_tty) |
c906108c SS |
3368 | { |
3369 | char *scan = args; | |
3370 | int exception; | |
3371 | int len; | |
3372 | ||
3373 | if (!args) | |
3374 | error_no_arg ("exception number action"); | |
3375 | ||
c5aa993b JM |
3376 | while (*scan == ' ' || *scan == '\t') |
3377 | scan++; | |
3378 | ||
c906108c SS |
3379 | if ('0' <= *scan && *scan <= '9') |
3380 | while ('0' <= *scan && *scan <= '9') | |
3381 | scan++; | |
3382 | else | |
3383 | error ("exception number action"); | |
3384 | ||
3385 | exception = atoi (args); | |
3386 | if (exception <= 0 || exception > MAX_EXCEPTION) | |
3387 | error ("Allowed exception numbers are in range 1..%d", | |
3388 | MAX_EXCEPTION); | |
3389 | ||
3390 | if (*scan != ' ' && *scan != '\t') | |
3391 | error ("exception number must be followed by a space"); | |
3392 | else | |
c5aa993b JM |
3393 | while (*scan == ' ' || *scan == '\t') |
3394 | scan++; | |
c906108c SS |
3395 | |
3396 | args = scan; | |
3397 | len = 0; | |
3398 | while (*scan) | |
3399 | { | |
3400 | len++; | |
3401 | scan++; | |
3402 | } | |
3403 | ||
3404 | if (!len) | |
c5aa993b | 3405 | error ("exception number action"); |
c906108c SS |
3406 | |
3407 | if (!strncasecmp (args, "forward", len)) | |
c5aa993b | 3408 | exception_map[exception].forward = TRUE; |
c906108c | 3409 | else if (!strncasecmp (args, "keep", len)) |
c5aa993b | 3410 | exception_map[exception].forward = FALSE; |
c906108c SS |
3411 | else |
3412 | error ("exception action is either \"keep\" or \"forward\""); | |
3413 | } | |
3414 | ||
3415 | static void | |
fba45db2 | 3416 | print_exception_info (int exception) |
c906108c | 3417 | { |
c5aa993b | 3418 | boolean_t forward = exception_map[exception].forward; |
c906108c | 3419 | |
c5aa993b | 3420 | printf_filtered ("%s\t(%d): ", exception_map[exception].name, |
c906108c SS |
3421 | exception); |
3422 | if (!forward) | |
c5aa993b | 3423 | if (exception_map[exception].sigmap != SIG_UNKNOWN) |
c906108c | 3424 | printf_filtered ("keep and handle as signal %d\n", |
c5aa993b | 3425 | exception_map[exception].sigmap); |
c906108c SS |
3426 | else |
3427 | printf_filtered ("keep and handle as unknown signal %d\n", | |
c5aa993b | 3428 | exception_map[exception].sigmap); |
c906108c SS |
3429 | else |
3430 | printf_filtered ("forward exception to inferior\n"); | |
3431 | } | |
3432 | ||
3433 | void | |
fba45db2 | 3434 | exception_info (char *args, int from_tty) |
c906108c SS |
3435 | { |
3436 | int exception; | |
3437 | ||
3438 | if (!args) | |
3439 | for (exception = 1; exception <= MAX_EXCEPTION; exception++) | |
3440 | print_exception_info (exception); | |
3441 | else | |
3442 | { | |
3443 | exception = atoi (args); | |
3444 | ||
3445 | if (exception <= 0 || exception > MAX_EXCEPTION) | |
3446 | error ("Invalid exception number, values from 1 to %d allowed", | |
3447 | MAX_EXCEPTION); | |
3448 | print_exception_info (exception); | |
3449 | } | |
3450 | } | |
3451 | \f | |
3452 | /* Check for actions for mach exceptions. | |
3453 | */ | |
fba45db2 | 3454 | mach3_exception_actions (WAITTYPE *w, boolean_t force_print_only, char *who) |
c906108c SS |
3455 | { |
3456 | boolean_t force_print = FALSE; | |
3457 | ||
c5aa993b | 3458 | |
c906108c SS |
3459 | if (force_print_only || |
3460 | exception_map[stop_exception].sigmap == SIG_UNKNOWN) | |
3461 | force_print = TRUE; | |
3462 | else | |
3463 | WSETSTOP (*w, exception_map[stop_exception].sigmap); | |
3464 | ||
3465 | if (exception_map[stop_exception].print || force_print) | |
3466 | { | |
3467 | target_terminal_ours (); | |
c5aa993b | 3468 | |
c906108c SS |
3469 | printf_filtered ("\n%s received %s exception : ", |
3470 | who, | |
3471 | exception_map[stop_exception].name); | |
c5aa993b | 3472 | |
c906108c SS |
3473 | wrap_here (" "); |
3474 | ||
c5aa993b JM |
3475 | switch (stop_exception) |
3476 | { | |
3477 | case EXC_BAD_ACCESS: | |
3478 | printf_filtered ("referencing address 0x%x : %s\n", | |
3479 | stop_subcode, | |
3480 | mach_error_string (stop_code)); | |
3481 | break; | |
3482 | case EXC_BAD_INSTRUCTION: | |
3483 | printf_filtered | |
3484 | ("illegal or undefined instruction. code %d subcode %d\n", | |
3485 | stop_code, stop_subcode); | |
3486 | break; | |
3487 | case EXC_ARITHMETIC: | |
3488 | printf_filtered ("code %d\n", stop_code); | |
3489 | break; | |
3490 | case EXC_EMULATION: | |
3491 | printf_filtered ("code %d subcode %d\n", stop_code, stop_subcode); | |
3492 | break; | |
3493 | case EXC_SOFTWARE: | |
3494 | printf_filtered ("%s specific, code 0x%x\n", | |
3495 | stop_code < 0xffff ? "hardware" : "os emulation", | |
3496 | stop_code); | |
3497 | break; | |
3498 | case EXC_BREAKPOINT: | |
3499 | printf_filtered ("type %d (machine dependent)\n", | |
3500 | stop_code); | |
3501 | break; | |
3502 | default: | |
8e65ff28 AC |
3503 | internal_error (__FILE__, __LINE__, |
3504 | "Unknown exception"); | |
c5aa993b | 3505 | } |
c906108c SS |
3506 | } |
3507 | } | |
3508 | \f | |
fba45db2 | 3509 | setup_notify_port (int create_new) |
c906108c SS |
3510 | { |
3511 | kern_return_t ret; | |
3512 | ||
3513 | if (MACH_PORT_VALID (our_notify_port)) | |
3514 | { | |
3515 | ret = mach_port_destroy (mach_task_self (), our_notify_port); | |
3516 | CHK ("Could not destroy our_notify_port", ret); | |
3517 | } | |
3518 | ||
3519 | our_notify_port = MACH_PORT_NULL; | |
c5aa993b | 3520 | notify_chain = (port_chain_t) NULL; |
c906108c SS |
3521 | port_chain_destroy (port_chain_obstack); |
3522 | ||
3523 | if (create_new) | |
3524 | { | |
c5aa993b | 3525 | ret = mach_port_allocate (mach_task_self (), |
c906108c SS |
3526 | MACH_PORT_RIGHT_RECEIVE, |
3527 | &our_notify_port); | |
3528 | if (ret != KERN_SUCCESS) | |
8e65ff28 AC |
3529 | internal_error (__FILE__, __LINE__, |
3530 | "Creating notify port %s", mach_error_string (ret)); | |
c5aa993b JM |
3531 | |
3532 | ret = mach_port_move_member (mach_task_self (), | |
3533 | our_notify_port, | |
3534 | inferior_wait_port_set); | |
c906108c | 3535 | if (ret != KERN_SUCCESS) |
8e65ff28 AC |
3536 | internal_error (__FILE__, __LINE__, |
3537 | "initial move member %s", mach_error_string (ret)); | |
c906108c SS |
3538 | } |
3539 | } | |
3540 | ||
3541 | /* | |
3542 | * Register our message port to the net name server | |
3543 | * | |
3544 | * Currently used only by the external stop-gdb program | |
3545 | * since ^C does not work if you would like to enter | |
3546 | * gdb command level while debugging your program. | |
3547 | * | |
3548 | * NOTE: If the message port is sometimes used for other | |
3549 | * purposes also, the NAME must not be a guessable one. | |
3550 | * Then, there should be a way to change it. | |
3551 | */ | |
3552 | ||
c5aa993b | 3553 | char registered_name[MAX_NAME_LEN]; |
c906108c SS |
3554 | |
3555 | void | |
fba45db2 | 3556 | message_port_info (char *args, int from_tty) |
c906108c SS |
3557 | { |
3558 | if (registered_name[0]) | |
3559 | printf_filtered ("gdb's message port name: '%s'\n", | |
3560 | registered_name); | |
3561 | else | |
3562 | printf_filtered ("gdb's message port is not currently registered\n"); | |
3563 | } | |
3564 | ||
3565 | void | |
fba45db2 | 3566 | gdb_register_port (char *name, mach_port_t port) |
c906108c SS |
3567 | { |
3568 | kern_return_t ret; | |
3569 | static int already_signed = 0; | |
3570 | int len; | |
3571 | ||
c5aa993b | 3572 | if (!MACH_PORT_VALID (port) || !name || !*name) |
c906108c SS |
3573 | { |
3574 | warning ("Invalid registration request"); | |
3575 | return; | |
3576 | } | |
3577 | ||
c5aa993b | 3578 | if (!already_signed) |
c906108c SS |
3579 | { |
3580 | ret = mach_port_insert_right (mach_task_self (), | |
3581 | our_message_port, | |
3582 | our_message_port, | |
3583 | MACH_MSG_TYPE_MAKE_SEND); | |
3584 | CHK ("Failed to create a signature to our_message_port", ret); | |
3585 | already_signed = 1; | |
3586 | } | |
3587 | else if (already_signed > 1) | |
3588 | { | |
3589 | ret = netname_check_out (name_server_port, | |
3590 | registered_name, | |
3591 | our_message_port); | |
3592 | CHK ("Failed to check out gdb's message port", ret); | |
3593 | registered_name[0] = '\000'; | |
3594 | already_signed = 1; | |
3595 | } | |
3596 | ||
3597 | ret = netname_check_in (name_server_port, /* Name server port */ | |
c5aa993b | 3598 | name, /* Name of service */ |
c906108c | 3599 | our_message_port, /* Signature */ |
c5aa993b JM |
3600 | port); /* Creates a new send right */ |
3601 | CHK ("Failed to check in the port", ret); | |
3602 | ||
c906108c | 3603 | len = 0; |
c5aa993b | 3604 | while (len < MAX_NAME_LEN && *(name + len)) |
c906108c | 3605 | { |
c5aa993b | 3606 | registered_name[len] = *(name + len); |
c906108c SS |
3607 | len++; |
3608 | } | |
3609 | registered_name[len] = '\000'; | |
3610 | already_signed = 2; | |
c5aa993b | 3611 | } |
c906108c SS |
3612 | |
3613 | struct cmd_list_element *cmd_thread_list; | |
3614 | struct cmd_list_element *cmd_task_list; | |
3615 | ||
c5aa993b | 3616 | /*ARGSUSED */ |
c906108c | 3617 | static void |
fba45db2 | 3618 | thread_command (char *arg, int from_tty) |
c906108c SS |
3619 | { |
3620 | printf_unfiltered ("\"thread\" must be followed by the name of a thread command.\n"); | |
3621 | help_list (cmd_thread_list, "thread ", -1, gdb_stdout); | |
3622 | } | |
3623 | ||
c5aa993b | 3624 | /*ARGSUSED */ |
c906108c | 3625 | static void |
fba45db2 | 3626 | task_command (char *arg, int from_tty) |
c906108c SS |
3627 | { |
3628 | printf_unfiltered ("\"task\" must be followed by the name of a task command.\n"); | |
3629 | help_list (cmd_task_list, "task ", -1, gdb_stdout); | |
3630 | } | |
3631 | ||
fba45db2 | 3632 | add_mach_specific_commands (void) |
c906108c SS |
3633 | { |
3634 | /* Thread handling commands */ | |
3635 | ||
3636 | /* FIXME: Move our thread support into the generic thread.c stuff so we | |
3637 | can share that code. */ | |
3638 | add_prefix_cmd ("mthread", class_stack, thread_command, | |
c5aa993b JM |
3639 | "Generic command for handling Mach threads in the debugged task.", |
3640 | &cmd_thread_list, "thread ", 0, &cmdlist); | |
c906108c SS |
3641 | |
3642 | add_com_alias ("th", "mthread", class_stack, 1); | |
3643 | ||
c5aa993b | 3644 | add_cmd ("select", class_stack, thread_select_command, |
c906108c SS |
3645 | "Select and print MID of the selected thread", |
3646 | &cmd_thread_list); | |
c5aa993b | 3647 | add_cmd ("list", class_stack, thread_list_command, |
c906108c SS |
3648 | "List info of task's threads. Selected thread is marked with '*'", |
3649 | &cmd_thread_list); | |
3650 | add_cmd ("suspend", class_run, thread_suspend_command, | |
3651 | "Suspend one or all of the threads in the selected task.", | |
3652 | &cmd_thread_list); | |
3653 | add_cmd ("resume", class_run, thread_resume_command, | |
3654 | "Resume one or all of the threads in the selected task.", | |
3655 | &cmd_thread_list); | |
3656 | add_cmd ("kill", class_run, thread_kill_command, | |
3657 | "Kill the specified thread MID from inferior task.", | |
3658 | &cmd_thread_list); | |
3659 | #if 0 | |
3660 | /* The rest of this support (condition_thread) was not merged. It probably | |
3661 | should not be merged in this form, but instead added to the generic GDB | |
3662 | thread support. */ | |
3663 | add_cmd ("break", class_breakpoint, condition_thread, | |
3664 | "Breakpoint N will only be effective for thread MID or @SLOT\n\ | |
3665 | If MID/@SLOT is omitted allow all threads to break at breakpoint", | |
3666 | &cmd_thread_list); | |
3667 | #endif | |
3668 | /* Thread command shorthands (for backward compatibility) */ | |
3669 | add_alias_cmd ("ts", "mthread select", 0, 0, &cmdlist); | |
c5aa993b | 3670 | add_alias_cmd ("tl", "mthread list", 0, 0, &cmdlist); |
c906108c SS |
3671 | |
3672 | /* task handling commands */ | |
3673 | ||
3674 | add_prefix_cmd ("task", class_stack, task_command, | |
c5aa993b JM |
3675 | "Generic command for handling debugged task.", |
3676 | &cmd_task_list, "task ", 0, &cmdlist); | |
c906108c SS |
3677 | |
3678 | add_com_alias ("ta", "task", class_stack, 1); | |
3679 | ||
3680 | add_cmd ("suspend", class_run, task_suspend_command, | |
3681 | "Suspend the inferior task.", | |
3682 | &cmd_task_list); | |
3683 | add_cmd ("resume", class_run, task_resume_command, | |
3684 | "Resume the inferior task.", | |
3685 | &cmd_task_list); | |
3686 | add_cmd ("info", no_class, task_info_command, | |
3687 | "Print information about the specified task.", | |
3688 | &cmd_task_list); | |
3689 | ||
3690 | /* Print my message port name */ | |
3691 | ||
3692 | add_info ("message-port", message_port_info, | |
3693 | "Returns the name of gdb's message port in the netnameserver"); | |
3694 | ||
3695 | /* Exception commands */ | |
3696 | ||
3697 | add_info ("exceptions", exception_info, | |
3698 | "What debugger does when program gets various exceptions.\n\ | |
3699 | Specify an exception number as argument to print info on that\n\ | |
3700 | exception only."); | |
3701 | ||
3702 | add_com ("exception", class_run, exception_command, | |
3703 | "Specify how to handle an exception.\n\ | |
3704 | Args are exception number followed by \"forward\" or \"keep\".\n\ | |
3705 | `Forward' means forward the exception to the program's normal exception\n\ | |
3706 | handler.\n\ | |
3707 | `Keep' means reenter debugger if this exception happens, and GDB maps\n\ | |
3708 | the exception to some signal (see info exception)\n\ | |
3709 | Normally \"keep\" is used to return to GDB on exception."); | |
3710 | } | |
3711 | ||
3712 | kern_return_t | |
fba45db2 | 3713 | do_mach_notify_dead_name (mach_port_t notify, mach_port_t name) |
c906108c SS |
3714 | { |
3715 | kern_return_t kr = KERN_SUCCESS; | |
3716 | ||
3717 | /* Find the thing that notified */ | |
3718 | port_chain_t element = port_chain_member (notify_chain, name); | |
3719 | ||
3720 | /* Take name of from unreceived dead name notification list */ | |
3721 | notify_chain = port_chain_delete (notify_chain, name); | |
3722 | ||
c5aa993b | 3723 | if (!element) |
c906108c | 3724 | error ("Received a dead name notify from unchained port (0x%x)", name); |
c906108c | 3725 | |
c5aa993b JM |
3726 | switch (element->type) |
3727 | { | |
c906108c | 3728 | |
c5aa993b JM |
3729 | case MACH_TYPE_THREAD: |
3730 | target_terminal_ours_for_output (); | |
3731 | if (name == current_thread) | |
3732 | { | |
3733 | printf_filtered ("\nCurrent thread %d died", element->mid); | |
3734 | current_thread = MACH_PORT_NULL; | |
3735 | } | |
3736 | else | |
3737 | printf_filtered ("\nThread %d died", element->mid); | |
c906108c | 3738 | |
c5aa993b | 3739 | break; |
c906108c | 3740 | |
c5aa993b JM |
3741 | case MACH_TYPE_TASK: |
3742 | target_terminal_ours_for_output (); | |
3743 | if (name != inferior_task) | |
3744 | printf_filtered ("Task %d died, but it was not the selected task", | |
3745 | element->mid); | |
3746 | else | |
3747 | { | |
3748 | printf_filtered ("Current task %d died", element->mid); | |
c906108c | 3749 | |
c5aa993b JM |
3750 | mach_port_destroy (mach_task_self (), name); |
3751 | inferior_task = MACH_PORT_NULL; | |
3752 | ||
3753 | if (notify_chain) | |
3754 | warning ("There were still unreceived dead_name_notifications???"); | |
3755 | ||
3756 | /* Destroy the old notifications */ | |
3757 | setup_notify_port (0); | |
3758 | ||
3759 | } | |
3760 | break; | |
3761 | ||
3762 | default: | |
3763 | error ("Unregistered dead_name 0x%x notification received. Type is %d, mid is 0x%x", | |
3764 | name, element->type, element->mid); | |
3765 | break; | |
3766 | } | |
c906108c SS |
3767 | |
3768 | return KERN_SUCCESS; | |
3769 | } | |
3770 | ||
3771 | kern_return_t | |
fba45db2 | 3772 | do_mach_notify_msg_accepted (mach_port_t notify, mach_port_t name) |
c906108c SS |
3773 | { |
3774 | warning ("do_mach_notify_msg_accepted : notify %x, name %x", | |
3775 | notify, name); | |
3776 | return KERN_SUCCESS; | |
3777 | } | |
3778 | ||
3779 | kern_return_t | |
fba45db2 | 3780 | do_mach_notify_no_senders (mach_port_t notify, mach_port_mscount_t mscount) |
c906108c SS |
3781 | { |
3782 | warning ("do_mach_notify_no_senders : notify %x, mscount %x", | |
3783 | notify, mscount); | |
3784 | return KERN_SUCCESS; | |
3785 | } | |
3786 | ||
3787 | kern_return_t | |
fba45db2 | 3788 | do_mach_notify_port_deleted (mach_port_t notify, mach_port_t name) |
c906108c SS |
3789 | { |
3790 | warning ("do_mach_notify_port_deleted : notify %x, name %x", | |
3791 | notify, name); | |
3792 | return KERN_SUCCESS; | |
3793 | } | |
3794 | ||
3795 | kern_return_t | |
fba45db2 | 3796 | do_mach_notify_port_destroyed (mach_port_t notify, mach_port_t rights) |
c906108c SS |
3797 | { |
3798 | warning ("do_mach_notify_port_destroyed : notify %x, rights %x", | |
3799 | notify, rights); | |
3800 | return KERN_SUCCESS; | |
3801 | } | |
3802 | ||
3803 | kern_return_t | |
fba45db2 | 3804 | do_mach_notify_send_once (mach_port_t notify) |
c906108c SS |
3805 | { |
3806 | #ifdef DUMP_SYSCALL | |
3807 | /* MANY of these are generated. */ | |
3808 | warning ("do_mach_notify_send_once : notify %x", | |
3809 | notify); | |
3810 | #endif | |
3811 | return KERN_SUCCESS; | |
3812 | } | |
3813 | ||
3814 | /* Kills the inferior. It's gone when you call this */ | |
3815 | static void | |
fba45db2 | 3816 | kill_inferior_fast (void) |
c906108c SS |
3817 | { |
3818 | WAITTYPE w; | |
3819 | ||
3820 | if (inferior_pid == 0 || inferior_pid == 1) | |
3821 | return; | |
3822 | ||
3823 | /* kill() it, since the Unix server does not otherwise notice when | |
3824 | * killed with task_terminate(). | |
3825 | */ | |
3826 | if (inferior_pid > 0) | |
3827 | kill (inferior_pid, SIGKILL); | |
3828 | ||
3829 | /* It's propably terminate already */ | |
3830 | (void) task_terminate (inferior_task); | |
3831 | ||
c5aa993b | 3832 | inferior_task = MACH_PORT_NULL; |
c906108c SS |
3833 | current_thread = MACH_PORT_NULL; |
3834 | ||
3835 | wait3 (&w, WNOHANG, 0); | |
3836 | ||
3837 | setup_notify_port (0); | |
3838 | } | |
3839 | ||
3840 | static void | |
fba45db2 | 3841 | m3_kill_inferior (void) |
c906108c SS |
3842 | { |
3843 | kill_inferior_fast (); | |
3844 | target_mourn_inferior (); | |
3845 | } | |
3846 | ||
3847 | /* Clean up after the inferior dies. */ | |
3848 | ||
3849 | static void | |
fba45db2 | 3850 | m3_mourn_inferior (void) |
c906108c SS |
3851 | { |
3852 | unpush_target (&m3_ops); | |
3853 | generic_mourn_inferior (); | |
3854 | } | |
c906108c | 3855 | \f |
c5aa993b | 3856 | |
c906108c SS |
3857 | /* Fork an inferior process, and start debugging it. */ |
3858 | ||
3859 | static void | |
fba45db2 | 3860 | m3_create_inferior (char *exec_file, char *allargs, char **env) |
c906108c SS |
3861 | { |
3862 | fork_inferior (exec_file, allargs, env, m3_trace_me, m3_trace_him, NULL, NULL); | |
3863 | /* We are at the first instruction we care about. */ | |
3864 | /* Pedal to the metal... */ | |
2acceee2 | 3865 | proceed ((CORE_ADDR) -1, 0, 0); |
c906108c SS |
3866 | } |
3867 | ||
3868 | /* Mark our target-struct as eligible for stray "run" and "attach" | |
3869 | commands. */ | |
3870 | static int | |
fba45db2 | 3871 | m3_can_run (void) |
c906108c SS |
3872 | { |
3873 | return 1; | |
3874 | } | |
3875 | \f | |
3876 | /* Mach 3.0 does not need ptrace for anything | |
3877 | * Make sure nobody uses it on mach. | |
3878 | */ | |
fba45db2 | 3879 | ptrace (int a, int b, int c, int d) |
c906108c SS |
3880 | { |
3881 | error ("Lose, Lose! Somebody called ptrace\n"); | |
3882 | } | |
3883 | ||
3884 | /* Resume execution of the inferior process. | |
3885 | If STEP is nonzero, single-step it. | |
3886 | If SIGNAL is nonzero, give it that signal. */ | |
3887 | ||
3888 | void | |
fba45db2 | 3889 | m3_resume (int pid, int step, enum target_signal signal) |
c906108c | 3890 | { |
c5aa993b | 3891 | kern_return_t ret; |
c906108c SS |
3892 | |
3893 | if (step) | |
3894 | { | |
3895 | thread_basic_info_data_t th_info; | |
c5aa993b JM |
3896 | unsigned int infoCnt = THREAD_BASIC_INFO_COUNT; |
3897 | ||
c906108c SS |
3898 | /* There is no point in single stepping when current_thread |
3899 | * is dead. | |
3900 | */ | |
c5aa993b | 3901 | if (!MACH_PORT_VALID (current_thread)) |
c906108c | 3902 | error ("No thread selected; can not single step"); |
c5aa993b | 3903 | |
c906108c SS |
3904 | /* If current_thread is suspended, tracing it would never return. |
3905 | */ | |
3906 | ret = thread_info (current_thread, | |
3907 | THREAD_BASIC_INFO, | |
c5aa993b | 3908 | (thread_info_t) & th_info, |
c906108c SS |
3909 | &infoCnt); |
3910 | CHK ("child_resume: can't get thread info", ret); | |
c5aa993b | 3911 | |
c906108c SS |
3912 | if (th_info.suspend_count) |
3913 | error ("Can't trace a suspended thread. Use \"thread resume\" command to resume it"); | |
3914 | } | |
3915 | ||
3916 | vm_read_cache_valid = FALSE; | |
3917 | ||
c5aa993b | 3918 | if (signal && inferior_pid > 0) /* Do not signal, if attached by MID */ |
c906108c SS |
3919 | kill (inferior_pid, target_signal_to_host (signal)); |
3920 | ||
3921 | if (step) | |
3922 | { | |
3923 | suspend_all_threads (0); | |
3924 | ||
3925 | setup_single_step (current_thread, TRUE); | |
c5aa993b | 3926 | |
c906108c SS |
3927 | ret = thread_resume (current_thread); |
3928 | CHK ("thread_resume", ret); | |
3929 | } | |
c5aa993b | 3930 | |
c906108c SS |
3931 | ret = task_resume (inferior_task); |
3932 | if (ret == KERN_FAILURE) | |
3933 | warning ("Task was not suspended"); | |
3934 | else | |
3935 | CHK ("Resuming task", ret); | |
c5aa993b | 3936 | |
c906108c | 3937 | /* HACK HACK This is needed by the multiserver system HACK HACK */ |
c5aa993b JM |
3938 | while ((ret = task_resume (inferior_task)) == KERN_SUCCESS) |
3939 | /* make sure it really runs */ ; | |
c906108c SS |
3940 | /* HACK HACK This is needed by the multiserver system HACK HACK */ |
3941 | } | |
3942 | \f | |
3943 | #ifdef ATTACH_DETACH | |
3944 | ||
3945 | /* Start debugging the process with the given task */ | |
3946 | void | |
fba45db2 | 3947 | task_attach (task_t tid) |
c906108c SS |
3948 | { |
3949 | kern_return_t ret; | |
3950 | inferior_task = tid; | |
3951 | ||
3952 | ret = task_suspend (inferior_task); | |
c5aa993b | 3953 | CHK ("task_attach: task_suspend", ret); |
c906108c SS |
3954 | |
3955 | must_suspend_thread = 0; | |
3956 | ||
3957 | setup_notify_port (1); | |
3958 | ||
3959 | request_notify (inferior_task, MACH_NOTIFY_DEAD_NAME, MACH_TYPE_TASK); | |
3960 | ||
3961 | setup_exception_port (); | |
c5aa993b | 3962 | |
c906108c SS |
3963 | emulator_present = have_emulator_p (inferior_task); |
3964 | ||
3965 | attach_flag = 1; | |
3966 | } | |
3967 | ||
3968 | /* Well, we can call error also here and leave the | |
3969 | * target stack inconsistent. Sigh. | |
3970 | * Fix this sometime (the only way to fail here is that | |
3971 | * the task has no threads at all, which is rare, but | |
3972 | * possible; or if the target task has died, which is also | |
3973 | * possible, but unlikely, since it has been suspended. | |
3974 | * (Someone must have killed it)) | |
3975 | */ | |
3976 | void | |
fba45db2 | 3977 | attach_to_thread (void) |
c906108c SS |
3978 | { |
3979 | if (select_thread (inferior_task, 0, 1) != KERN_SUCCESS) | |
3980 | error ("Could not select any threads to attach to"); | |
3981 | } | |
3982 | ||
fba45db2 | 3983 | mid_attach (int mid) |
c906108c | 3984 | { |
c5aa993b | 3985 | kern_return_t ret; |
c906108c | 3986 | |
c5aa993b JM |
3987 | ret = machid_mach_port (mid_server, mid_auth, mid, &inferior_task); |
3988 | CHK ("mid_attach: machid_mach_port", ret); | |
c906108c | 3989 | |
c5aa993b | 3990 | task_attach (inferior_task); |
c906108c | 3991 | |
c5aa993b | 3992 | return mid; |
c906108c SS |
3993 | } |
3994 | ||
3995 | /* | |
3996 | * Start debugging the process whose unix process-id is PID. | |
3997 | * A negative "pid" value is legal and signifies a mach_id not a unix pid. | |
3998 | * | |
3999 | * Prevent (possible unwanted) dangerous operations by enabled users | |
4000 | * like "atta 0" or "atta foo" (equal to the previous :-) and | |
4001 | * "atta pidself". Anyway, the latter is allowed by specifying a MID. | |
4002 | */ | |
4003 | static int | |
fba45db2 | 4004 | m3_do_attach (int pid) |
c906108c SS |
4005 | { |
4006 | kern_return_t ret; | |
4007 | ||
4008 | if (pid == 0) | |
c5aa993b | 4009 | error ("MID=0, Debugging the master unix server does not compute"); |
c906108c SS |
4010 | |
4011 | /* Foo. This assumes gdb has a unix pid */ | |
c5aa993b | 4012 | if (pid == getpid ()) |
c906108c SS |
4013 | error ("I will debug myself only by mid. (Gdb would suspend itself!)"); |
4014 | ||
4015 | if (pid < 0) | |
4016 | { | |
4017 | mid_attach (-(pid)); | |
4018 | ||
4019 | /* inferior_pid will be NEGATIVE! */ | |
4020 | inferior_pid = pid; | |
4021 | ||
4022 | return inferior_pid; | |
4023 | } | |
4024 | ||
4025 | inferior_task = task_by_pid (pid); | |
c5aa993b JM |
4026 | if (!MACH_PORT_VALID (inferior_task)) |
4027 | error ("Cannot map Unix pid %d to Mach task port", pid); | |
c906108c SS |
4028 | |
4029 | task_attach (inferior_task); | |
4030 | ||
4031 | inferior_pid = pid; | |
4032 | ||
4033 | return inferior_pid; | |
4034 | } | |
4035 | ||
4036 | /* Attach to process PID, then initialize for debugging it | |
4037 | and wait for the trace-trap that results from attaching. */ | |
4038 | ||
4039 | static void | |
fba45db2 | 4040 | m3_attach (char *args, int from_tty) |
c906108c SS |
4041 | { |
4042 | char *exec_file; | |
4043 | int pid; | |
4044 | ||
4045 | if (!args) | |
4046 | error_no_arg ("process-id to attach"); | |
4047 | ||
4048 | pid = atoi (args); | |
4049 | ||
c5aa993b | 4050 | if (pid == getpid ()) /* Trying to masturbate? */ |
c906108c SS |
4051 | error ("I refuse to debug myself!"); |
4052 | ||
4053 | if (from_tty) | |
4054 | { | |
4055 | exec_file = (char *) get_exec_file (0); | |
4056 | ||
4057 | if (exec_file) | |
4058 | printf_unfiltered ("Attaching to program `%s', %s\n", exec_file, target_pid_to_str (pid)); | |
4059 | else | |
4060 | printf_unfiltered ("Attaching to %s\n", target_pid_to_str (pid)); | |
4061 | ||
4062 | gdb_flush (gdb_stdout); | |
4063 | } | |
4064 | ||
4065 | m3_do_attach (pid); | |
4066 | inferior_pid = pid; | |
4067 | push_target (&m3_ops); | |
4068 | } | |
4069 | \f | |
4070 | void | |
fba45db2 | 4071 | deallocate_inferior_ports (void) |
c906108c | 4072 | { |
c5aa993b | 4073 | kern_return_t ret; |
c906108c | 4074 | thread_array_t thread_list; |
c5aa993b | 4075 | int thread_count, index; |
c906108c SS |
4076 | |
4077 | if (!MACH_PORT_VALID (inferior_task)) | |
4078 | return; | |
4079 | ||
4080 | ret = task_threads (inferior_task, &thread_list, &thread_count); | |
4081 | if (ret != KERN_SUCCESS) | |
4082 | { | |
4083 | warning ("deallocate_inferior_ports: task_threads", | |
c5aa993b | 4084 | mach_error_string (ret)); |
c906108c SS |
4085 | return; |
4086 | } | |
4087 | ||
4088 | /* Get rid of send rights to task threads */ | |
4089 | for (index = 0; index < thread_count; index++) | |
4090 | { | |
4091 | int rights; | |
4092 | ret = mach_port_get_refs (mach_task_self (), | |
4093 | thread_list[index], | |
4094 | MACH_PORT_RIGHT_SEND, | |
4095 | &rights); | |
c5aa993b | 4096 | CHK ("deallocate_inferior_ports: get refs", ret); |
c906108c SS |
4097 | |
4098 | if (rights > 0) | |
4099 | { | |
4100 | ret = mach_port_mod_refs (mach_task_self (), | |
4101 | thread_list[index], | |
4102 | MACH_PORT_RIGHT_SEND, | |
4103 | -rights); | |
c5aa993b | 4104 | CHK ("deallocate_inferior_ports: mod refs", ret); |
c906108c SS |
4105 | } |
4106 | } | |
4107 | ||
4108 | ret = mach_port_mod_refs (mach_task_self (), | |
4109 | inferior_exception_port, | |
4110 | MACH_PORT_RIGHT_RECEIVE, | |
4111 | -1); | |
4112 | CHK ("deallocate_inferior_ports: cannot get rid of exception port", ret); | |
4113 | ||
4114 | ret = mach_port_deallocate (mach_task_self (), | |
4115 | inferior_task); | |
4116 | CHK ("deallocate_task_port: deallocating inferior_task", ret); | |
4117 | ||
4118 | current_thread = MACH_PORT_NULL; | |
c5aa993b | 4119 | inferior_task = MACH_PORT_NULL; |
c906108c SS |
4120 | } |
4121 | ||
4122 | /* Stop debugging the process whose number is PID | |
4123 | and continue it with signal number SIGNAL. | |
4124 | SIGNAL = 0 means just continue it. */ | |
4125 | ||
4126 | static void | |
fba45db2 | 4127 | m3_do_detach (int signal) |
c906108c SS |
4128 | { |
4129 | kern_return_t ret; | |
4130 | ||
4131 | MACH_ERROR_NO_INFERIOR; | |
4132 | ||
4133 | if (current_thread != MACH_PORT_NULL) | |
4134 | { | |
4135 | /* Store the gdb's view of the thread we are deselecting | |
4136 | * before we detach. | |
4137 | * @@ I am really not sure if this is ever needeed. | |
4138 | */ | |
4139 | target_prepare_to_store (); | |
4140 | target_store_registers (-1); | |
4141 | } | |
4142 | ||
4143 | ret = task_set_special_port (inferior_task, | |
c5aa993b | 4144 | TASK_EXCEPTION_PORT, |
c906108c SS |
4145 | inferior_old_exception_port); |
4146 | CHK ("task_set_special_port", ret); | |
4147 | ||
4148 | /* Discard all requested notifications */ | |
4149 | setup_notify_port (0); | |
4150 | ||
4151 | if (remove_breakpoints ()) | |
4152 | warning ("Could not remove breakpoints when detaching"); | |
c5aa993b | 4153 | |
c906108c SS |
4154 | if (signal && inferior_pid > 0) |
4155 | kill (inferior_pid, signal); | |
c5aa993b | 4156 | |
c906108c SS |
4157 | /* the task might be dead by now */ |
4158 | (void) task_resume (inferior_task); | |
c5aa993b | 4159 | |
c906108c | 4160 | deallocate_inferior_ports (); |
c5aa993b | 4161 | |
c906108c SS |
4162 | attach_flag = 0; |
4163 | } | |
4164 | ||
4165 | /* Take a program previously attached to and detaches it. | |
4166 | The program resumes execution and will no longer stop | |
4167 | on signals, etc. We'd better not have left any breakpoints | |
4168 | in the program or it'll die when it hits one. For this | |
4169 | to work, it may be necessary for the process to have been | |
4170 | previously attached. It *might* work if the program was | |
4171 | started via fork. */ | |
4172 | ||
4173 | static void | |
fba45db2 | 4174 | m3_detach (char *args, int from_tty) |
c906108c SS |
4175 | { |
4176 | int siggnal = 0; | |
4177 | ||
4178 | if (from_tty) | |
4179 | { | |
4180 | char *exec_file = get_exec_file (0); | |
4181 | if (exec_file == 0) | |
4182 | exec_file = ""; | |
4183 | printf_unfiltered ("Detaching from program: %s %s\n", | |
c5aa993b | 4184 | exec_file, target_pid_to_str (inferior_pid)); |
c906108c SS |
4185 | gdb_flush (gdb_stdout); |
4186 | } | |
4187 | if (args) | |
4188 | siggnal = atoi (args); | |
c5aa993b | 4189 | |
c906108c SS |
4190 | m3_do_detach (siggnal); |
4191 | inferior_pid = 0; | |
c5aa993b | 4192 | unpush_target (&m3_ops); /* Pop out of handling an inferior */ |
c906108c SS |
4193 | } |
4194 | #endif /* ATTACH_DETACH */ | |
4195 | ||
4196 | /* Get ready to modify the registers array. On machines which store | |
4197 | individual registers, this doesn't need to do anything. On machines | |
4198 | which store all the registers in one fell swoop, this makes sure | |
4199 | that registers contains all the registers from the program being | |
4200 | debugged. */ | |
4201 | ||
4202 | static void | |
fba45db2 | 4203 | m3_prepare_to_store (void) |
c906108c SS |
4204 | { |
4205 | #ifdef CHILD_PREPARE_TO_STORE | |
4206 | CHILD_PREPARE_TO_STORE (); | |
4207 | #endif | |
4208 | } | |
4209 | ||
4210 | /* Print status information about what we're accessing. */ | |
4211 | ||
4212 | static void | |
fba45db2 | 4213 | m3_files_info (struct target_ops *ignore) |
c906108c SS |
4214 | { |
4215 | /* FIXME: should print MID and all that crap. */ | |
4216 | printf_unfiltered ("\tUsing the running image of %s %s.\n", | |
c5aa993b | 4217 | attach_flag ? "attached" : "child", target_pid_to_str (inferior_pid)); |
c906108c SS |
4218 | } |
4219 | ||
4220 | static void | |
fba45db2 | 4221 | m3_open (char *arg, int from_tty) |
c906108c SS |
4222 | { |
4223 | error ("Use the \"run\" command to start a Unix child process."); | |
4224 | } | |
4225 | ||
4226 | #ifdef DUMP_SYSCALL | |
4227 | #ifdef __STDC__ | |
4228 | #define STR(x) #x | |
4229 | #else | |
4230 | #define STR(x) "x" | |
4231 | #endif | |
4232 | ||
c5aa993b JM |
4233 | char *bsd1_names[] = |
4234 | { | |
c906108c SS |
4235 | "execve", |
4236 | "fork", | |
4237 | "take_signal", | |
4238 | "sigreturn", | |
4239 | "getrusage", | |
4240 | "chdir", | |
4241 | "chroot", | |
4242 | "open", | |
4243 | "creat", | |
4244 | "mknod", | |
4245 | "link", | |
4246 | "symlink", | |
4247 | "unlink", | |
4248 | "access", | |
4249 | "stat", | |
4250 | "readlink", | |
4251 | "chmod", | |
4252 | "chown", | |
4253 | "utimes", | |
4254 | "truncate", | |
4255 | "rename", | |
4256 | "mkdir", | |
4257 | "rmdir", | |
4258 | "xutimes", | |
4259 | "mount", | |
4260 | "umount", | |
4261 | "acct", | |
4262 | "setquota", | |
4263 | "write_short", | |
4264 | "write_long", | |
4265 | "send_short", | |
4266 | "send_long", | |
4267 | "sendto_short", | |
4268 | "sendto_long", | |
4269 | "select", | |
4270 | "task_by_pid", | |
4271 | "recvfrom_short", | |
4272 | "recvfrom_long", | |
4273 | "setgroups", | |
4274 | "setrlimit", | |
4275 | "sigvec", | |
4276 | "sigstack", | |
4277 | "settimeofday", | |
4278 | "adjtime", | |
4279 | "setitimer", | |
4280 | "sethostname", | |
4281 | "bind", | |
4282 | "accept", | |
4283 | "connect", | |
4284 | "setsockopt", | |
4285 | "getsockopt", | |
4286 | "getsockname", | |
4287 | "getpeername", | |
4288 | "init_process", | |
4289 | "table_set", | |
4290 | "table_get", | |
4291 | "pioctl", | |
4292 | "emulator_error", | |
4293 | "readwrite", | |
4294 | "share_wakeup", | |
4295 | 0, | |
4296 | "maprw_request_it", | |
4297 | "maprw_release_it", | |
4298 | "maprw_remap", | |
4299 | "pid_by_task", | |
4300 | }; | |
4301 | ||
c5aa993b | 4302 | int bsd1_nnames = sizeof (bsd1_names) / sizeof (bsd1_names[0]); |
c906108c | 4303 | |
c5aa993b | 4304 | char * |
fba45db2 | 4305 | name_str (int name, char *buf) |
c906108c | 4306 | { |
c5aa993b JM |
4307 | switch (name) |
4308 | { | |
4309 | case MACH_MSG_TYPE_BOOLEAN: | |
4310 | return "boolean"; | |
4311 | case MACH_MSG_TYPE_INTEGER_16: | |
4312 | return "short"; | |
4313 | case MACH_MSG_TYPE_INTEGER_32: | |
4314 | return "long"; | |
4315 | case MACH_MSG_TYPE_CHAR: | |
4316 | return "char"; | |
4317 | case MACH_MSG_TYPE_BYTE: | |
4318 | return "byte"; | |
4319 | case MACH_MSG_TYPE_REAL: | |
4320 | return "real"; | |
4321 | case MACH_MSG_TYPE_STRING: | |
4322 | return "string"; | |
4323 | default: | |
4324 | sprintf (buf, "%d", name); | |
4325 | return buf; | |
4326 | } | |
c906108c SS |
4327 | } |
4328 | ||
4329 | char * | |
fba45db2 | 4330 | id_str (int id, char *buf) |
c906108c | 4331 | { |
c5aa993b JM |
4332 | char *p; |
4333 | if (id >= 101000 && id < 101000 + bsd1_nnames) | |
4334 | { | |
4335 | if (p = bsd1_names[id - 101000]) | |
4336 | return p; | |
4337 | } | |
c906108c SS |
4338 | if (id == 102000) |
4339 | return "psignal_retry"; | |
4340 | if (id == 100000) | |
4341 | return "syscall"; | |
c5aa993b | 4342 | sprintf (buf, "%d", id); |
c906108c SS |
4343 | return buf; |
4344 | } | |
4345 | ||
fba45db2 | 4346 | print_msg (mach_msg_header_t *mp) |
c906108c | 4347 | { |
c5aa993b JM |
4348 | char *fmt_x = "%20s : 0x%08x\n"; |
4349 | char *fmt_d = "%20s : %10d\n"; | |
4350 | char *fmt_s = "%20s : %s\n"; | |
4351 | char buf[100]; | |
c906108c SS |
4352 | |
4353 | puts_filtered ("\n"); | |
4354 | #define pr(fmt,h,x) printf_filtered(fmt,STR(x),(h).x) | |
c5aa993b JM |
4355 | pr (fmt_x, (*mp), msgh_bits); |
4356 | pr (fmt_d, (*mp), msgh_size); | |
4357 | pr (fmt_x, (*mp), msgh_remote_port); | |
4358 | pr (fmt_x, (*mp), msgh_local_port); | |
4359 | pr (fmt_d, (*mp), msgh_kind); | |
4360 | printf_filtered (fmt_s, STR (msgh_id), id_str (mp->msgh_id, buf)); | |
4361 | ||
c906108c | 4362 | if (debug_level > 1) |
c5aa993b JM |
4363 | { |
4364 | char *p, *ep, *dp; | |
4365 | int plen; | |
4366 | p = (char *) mp; | |
4367 | ep = p + mp->msgh_size; | |
4368 | p += sizeof (*mp); | |
4369 | for (; p < ep; p += plen) | |
4370 | { | |
4371 | mach_msg_type_t *tp; | |
4372 | mach_msg_type_long_t *tlp; | |
4373 | int name, size, number; | |
4374 | tp = (mach_msg_type_t *) p; | |
4375 | if (tp->msgt_longform) | |
4376 | { | |
4377 | tlp = (mach_msg_type_long_t *) tp; | |
4378 | name = tlp->msgtl_name; | |
4379 | size = tlp->msgtl_size; | |
4380 | number = tlp->msgtl_number; | |
4381 | plen = sizeof (*tlp); | |
4382 | } | |
4383 | else | |
4384 | { | |
4385 | name = tp->msgt_name; | |
4386 | size = tp->msgt_size; | |
4387 | number = tp->msgt_number; | |
4388 | plen = sizeof (*tp); | |
4389 | } | |
4390 | printf_filtered ("name=%-16s size=%2d number=%7d inline=%d long=%d deal=%d\n", | |
4391 | name_str (name, buf), size, number, tp->msgt_inline, | |
4392 | tp->msgt_longform, tp->msgt_deallocate); | |
4393 | dp = p + plen; | |
4394 | if (tp->msgt_inline) | |
4395 | { | |
4396 | int l; | |
4397 | l = size * number / 8; | |
4398 | l = (l + sizeof (long) - 1) & ~((sizeof (long)) - 1); | |
4399 | plen += l; | |
4400 | print_data (dp, size, number); | |
4401 | } | |
4402 | else | |
4403 | { | |
4404 | plen += sizeof (int *); | |
4405 | } | |
4406 | printf_filtered ("plen=%d\n", plen); | |
4407 | } | |
c906108c | 4408 | } |
c906108c SS |
4409 | } |
4410 | ||
fba45db2 | 4411 | print_data (char *p, int size, int number) |
c906108c | 4412 | { |
c5aa993b JM |
4413 | int *ip; |
4414 | short *sp; | |
4415 | int i; | |
4416 | ||
4417 | switch (size) | |
4418 | { | |
4419 | case 8: | |
4420 | for (i = 0; i < number; i++) | |
4421 | { | |
4422 | printf_filtered (" %02x", p[i]); | |
4423 | } | |
4424 | break; | |
4425 | case 16: | |
4426 | sp = (short *) p; | |
4427 | for (i = 0; i < number; i++) | |
4428 | { | |
4429 | printf_filtered (" %04x", sp[i]); | |
4430 | } | |
4431 | break; | |
4432 | case 32: | |
4433 | ip = (int *) p; | |
4434 | for (i = 0; i < number; i++) | |
4435 | { | |
4436 | printf_filtered (" %08x", ip[i]); | |
4437 | } | |
4438 | break; | |
c906108c | 4439 | } |
c5aa993b | 4440 | puts_filtered ("\n"); |
c906108c | 4441 | } |
c5aa993b | 4442 | #endif /* DUMP_SYSCALL */ |
c906108c SS |
4443 | |
4444 | static void | |
fba45db2 | 4445 | m3_stop (void) |
c906108c SS |
4446 | { |
4447 | error ("to_stop target function not implemented"); | |
4448 | } | |
4449 | ||
4450 | static char * | |
fba45db2 | 4451 | m3_pid_to_exec_file (int pid) |
c906108c SS |
4452 | { |
4453 | error ("to_pid_to_exec_file target function not implemented"); | |
c5aa993b | 4454 | return NULL; /* To keep all compilers happy. */ |
c906108c SS |
4455 | } |
4456 | ||
4457 | static void | |
fba45db2 | 4458 | init_m3_ops (void) |
c906108c SS |
4459 | { |
4460 | m3_ops.to_shortname = "mach"; | |
4461 | m3_ops.to_longname = "Mach child process"; | |
4462 | m3_ops.to_doc = "Mach child process (started by the \"run\" command)."; | |
4463 | m3_ops.to_open = m3_open; | |
4464 | m3_ops.to_attach = m3_attach; | |
4465 | m3_ops.to_detach = m3_detach; | |
4466 | m3_ops.to_resume = m3_resume; | |
4467 | m3_ops.to_wait = mach_really__wait; | |
4468 | m3_ops.to_fetch_registers = fetch_inferior_registers; | |
4469 | m3_ops.to_store_registers = store_inferior_registers; | |
4470 | m3_ops.to_prepare_to_store = m3_prepare_to_store; | |
4471 | m3_ops.to_xfer_memory = m3_xfer_memory; | |
4472 | m3_ops.to_files_info = m3_files_info; | |
4473 | m3_ops.to_insert_breakpoint = memory_insert_breakpoint; | |
4474 | m3_ops.to_remove_breakpoint = memory_remove_breakpoint; | |
4475 | m3_ops.to_terminal_init = terminal_init_inferior; | |
4476 | m3_ops.to_terminal_inferior = terminal_inferior; | |
4477 | m3_ops.to_terminal_ours_for_output = terminal_ours_for_output; | |
4478 | m3_ops.to_terminal_ours = terminal_ours; | |
4479 | m3_ops.to_terminal_info = child_terminal_info; | |
4480 | m3_ops.to_kill = m3_kill_inferior; | |
4481 | m3_ops.to_create_inferior = m3_create_inferior; | |
4482 | m3_ops.to_mourn_inferior = m3_mourn_inferior; | |
4483 | m3_ops.to_can_run = m3_can_run; | |
4484 | m3_ops.to_stop = m3_stop; | |
4485 | m3_ops.to_pid_to_exec_file = m3_pid_to_exec_file; | |
4486 | m3_ops.to_stratum = process_stratum; | |
4487 | m3_ops.to_has_all_memory = 1; | |
4488 | m3_ops.to_has_memory = 1; | |
4489 | m3_ops.to_has_stack = 1; | |
4490 | m3_ops.to_has_registers = 1; | |
4491 | m3_ops.to_has_execution = 1; | |
4492 | m3_ops.to_magic = OPS_MAGIC; | |
4493 | } | |
4494 | ||
4495 | void | |
fba45db2 | 4496 | _initialize_m3_nat (void) |
c906108c SS |
4497 | { |
4498 | kern_return_t ret; | |
4499 | ||
4500 | init_m3_ops (); | |
4501 | add_target (&m3_ops); | |
4502 | ||
c5aa993b JM |
4503 | ret = mach_port_allocate (mach_task_self (), |
4504 | MACH_PORT_RIGHT_PORT_SET, | |
4505 | &inferior_wait_port_set); | |
c906108c | 4506 | if (ret != KERN_SUCCESS) |
8e65ff28 AC |
4507 | internal_error (__FILE__, __LINE__, |
4508 | "initial port set %s", mach_error_string (ret)); | |
c906108c SS |
4509 | |
4510 | /* mach_really_wait now waits for this */ | |
4511 | currently_waiting_for = inferior_wait_port_set; | |
4512 | ||
c5aa993b | 4513 | ret = netname_look_up (name_server_port, hostname, "MachID", &mid_server); |
c906108c SS |
4514 | if (ret != KERN_SUCCESS) |
4515 | { | |
4516 | mid_server = MACH_PORT_NULL; | |
c5aa993b | 4517 | |
c906108c | 4518 | warning ("initialize machid: netname_lookup_up(MachID) : %s", |
c5aa993b | 4519 | mach_error_string (ret)); |
c906108c SS |
4520 | warning ("Some (most?) features disabled..."); |
4521 | } | |
c5aa993b JM |
4522 | |
4523 | mid_auth = mach_privileged_host_port (); | |
c906108c | 4524 | if (mid_auth == MACH_PORT_NULL) |
c5aa993b JM |
4525 | mid_auth = mach_task_self (); |
4526 | ||
c906108c SS |
4527 | obstack_init (port_chain_obstack); |
4528 | ||
c5aa993b | 4529 | ret = mach_port_allocate (mach_task_self (), |
c906108c SS |
4530 | MACH_PORT_RIGHT_RECEIVE, |
4531 | &thread_exception_port); | |
4532 | CHK ("Creating thread_exception_port for single stepping", ret); | |
c5aa993b | 4533 | |
c906108c SS |
4534 | ret = mach_port_insert_right (mach_task_self (), |
4535 | thread_exception_port, | |
4536 | thread_exception_port, | |
4537 | MACH_MSG_TYPE_MAKE_SEND); | |
4538 | CHK ("Inserting send right to thread_exception_port", ret); | |
4539 | ||
4540 | /* Allocate message port */ | |
4541 | ret = mach_port_allocate (mach_task_self (), | |
4542 | MACH_PORT_RIGHT_RECEIVE, | |
4543 | &our_message_port); | |
4544 | if (ret != KERN_SUCCESS) | |
4545 | warning ("Creating message port %s", mach_error_string (ret)); | |
4546 | else | |
4547 | { | |
c5aa993b JM |
4548 | char buf[MAX_NAME_LEN]; |
4549 | ret = mach_port_move_member (mach_task_self (), | |
4550 | our_message_port, | |
4551 | inferior_wait_port_set); | |
c906108c SS |
4552 | if (ret != KERN_SUCCESS) |
4553 | warning ("message move member %s", mach_error_string (ret)); | |
4554 | ||
4555 | ||
4556 | /* @@@@ No way to change message port name currently */ | |
4557 | /* Foo. This assumes gdb has a unix pid */ | |
4558 | sprintf (buf, "gdb-%d", getpid ()); | |
4559 | gdb_register_port (buf, our_message_port); | |
4560 | } | |
c5aa993b | 4561 | |
c906108c SS |
4562 | /* Heap for thread commands */ |
4563 | obstack_init (cproc_obstack); | |
4564 | ||
4565 | add_mach_specific_commands (); | |
4566 | } |