Commit | Line | Data |
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bd5635a1 | 1 | /* Select target systems and architectures at runtime for GDB. |
47b8a5ce | 2 | Copyright 1990, 1992, 1993, 1994, 1995, 1998 Free Software Foundation, Inc. |
bd5635a1 RP |
3 | Contributed by Cygnus Support. |
4 | ||
5 | This file is part of GDB. | |
6 | ||
e17960fb | 7 | This program is free software; you can redistribute it and/or modify |
bd5635a1 | 8 | it under the terms of the GNU General Public License as published by |
e17960fb JG |
9 | the Free Software Foundation; either version 2 of the License, or |
10 | (at your option) any later version. | |
bd5635a1 | 11 | |
e17960fb | 12 | This program is distributed in the hope that it will be useful, |
bd5635a1 RP |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
e17960fb | 18 | along with this program; if not, write to the Free Software |
8fc2b417 | 19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
bd5635a1 | 20 | |
80d68b1d | 21 | #include "defs.h" |
bd5635a1 RP |
22 | #include <errno.h> |
23 | #include <ctype.h> | |
2b576293 | 24 | #include "gdb_string.h" |
bd5635a1 RP |
25 | #include "target.h" |
26 | #include "gdbcmd.h" | |
27 | #include "symtab.h" | |
28 | #include "inferior.h" | |
29 | #include "bfd.h" | |
30 | #include "symfile.h" | |
51b57ded | 31 | #include "objfiles.h" |
4ad0021e JK |
32 | #include "wait.h" |
33 | #include <signal.h> | |
bd5635a1 | 34 | |
e17960fb JG |
35 | extern int errno; |
36 | ||
7919c3ed JG |
37 | static void |
38 | target_info PARAMS ((char *, int)); | |
39 | ||
40 | static void | |
41 | cleanup_target PARAMS ((struct target_ops *)); | |
42 | ||
43 | static void | |
44 | maybe_kill_then_create_inferior PARAMS ((char *, char *, char **)); | |
45 | ||
46 | static void | |
47 | maybe_kill_then_attach PARAMS ((char *, int)); | |
48 | ||
49 | static void | |
50 | kill_or_be_killed PARAMS ((int)); | |
51 | ||
52 | static void | |
53 | default_terminal_info PARAMS ((char *, int)); | |
54 | ||
55 | static int | |
56 | nosymbol PARAMS ((char *, CORE_ADDR *)); | |
57 | ||
7919c3ed JG |
58 | static void |
59 | tcomplain PARAMS ((void)); | |
60 | ||
61 | static int | |
4fc5969d | 62 | nomemory PARAMS ((CORE_ADDR, char *, int, int, struct target_ops *)); |
7919c3ed | 63 | |
597dc86b SG |
64 | static int |
65 | return_zero PARAMS ((void)); | |
66 | ||
7919c3ed JG |
67 | static void |
68 | ignore PARAMS ((void)); | |
597dc86b | 69 | |
7919c3ed JG |
70 | static void |
71 | target_command PARAMS ((char *, int)); | |
bd5635a1 | 72 | |
597dc86b SG |
73 | static struct target_ops * |
74 | find_default_run_target PARAMS ((char *)); | |
75 | ||
47b8a5ce PS |
76 | static void |
77 | update_current_target PARAMS ((void)); | |
78 | ||
79 | /* Transfer LEN bytes between target address MEMADDR and GDB address MYADDR. | |
80 | Returns 0 for success, errno code for failure (which includes partial | |
81 | transfers--if you want a more useful response to partial transfers, try | |
82 | target_read_memory_partial). */ | |
83 | ||
84 | static int | |
85 | target_xfer_memory PARAMS ((CORE_ADDR memaddr, char *myaddr, int len, | |
86 | int write, asection *bfd_section)); | |
87 | ||
88 | static void | |
89 | debug_to_open PARAMS ((char *, int)); | |
90 | ||
91 | static void | |
92 | debug_to_close PARAMS ((int)); | |
93 | ||
94 | static void | |
95 | debug_to_attach PARAMS ((char *, int)); | |
96 | ||
97 | static void | |
98 | debug_to_detach PARAMS ((char *, int)); | |
99 | ||
100 | static void | |
101 | debug_to_resume PARAMS ((int, int, enum target_signal)); | |
102 | ||
103 | static int | |
104 | debug_to_wait PARAMS ((int, struct target_waitstatus *)); | |
105 | ||
106 | static void | |
107 | debug_to_fetch_registers PARAMS ((int)); | |
108 | ||
109 | static void | |
110 | debug_to_store_registers PARAMS ((int)); | |
111 | ||
112 | static void | |
113 | debug_to_prepare_to_store PARAMS ((void)); | |
114 | ||
115 | static int | |
116 | debug_to_xfer_memory PARAMS ((CORE_ADDR, char *, int, int, struct target_ops *)); | |
117 | ||
118 | static void | |
119 | debug_to_files_info PARAMS ((struct target_ops *)); | |
120 | ||
121 | static int | |
122 | debug_to_insert_breakpoint PARAMS ((CORE_ADDR, char *)); | |
123 | ||
124 | static int | |
125 | debug_to_remove_breakpoint PARAMS ((CORE_ADDR, char *)); | |
126 | ||
127 | static void | |
128 | debug_to_terminal_init PARAMS ((void)); | |
129 | ||
130 | static void | |
131 | debug_to_terminal_inferior PARAMS ((void)); | |
132 | ||
133 | static void | |
134 | debug_to_terminal_ours_for_output PARAMS ((void)); | |
135 | ||
136 | static void | |
137 | debug_to_terminal_ours PARAMS ((void)); | |
138 | ||
139 | static void | |
140 | debug_to_terminal_info PARAMS ((char *, int)); | |
141 | ||
142 | static void | |
143 | debug_to_kill PARAMS ((void)); | |
144 | ||
145 | static void | |
146 | debug_to_load PARAMS ((char *, int)); | |
147 | ||
148 | static int | |
149 | debug_to_lookup_symbol PARAMS ((char *, CORE_ADDR *)); | |
150 | ||
151 | static void | |
152 | debug_to_create_inferior PARAMS ((char *, char *, char **)); | |
153 | ||
154 | static void | |
155 | debug_to_mourn_inferior PARAMS ((void)); | |
156 | ||
157 | static int | |
158 | debug_to_can_run PARAMS ((void)); | |
159 | ||
160 | static void | |
161 | debug_to_notice_signals PARAMS ((int)); | |
162 | ||
163 | static int | |
164 | debug_to_thread_alive PARAMS ((int)); | |
165 | ||
166 | static void | |
167 | debug_to_stop PARAMS ((void)); | |
168 | ||
bd5635a1 RP |
169 | /* Pointer to array of target architecture structures; the size of the |
170 | array; the current index into the array; the allocated size of the | |
171 | array. */ | |
172 | struct target_ops **target_structs; | |
173 | unsigned target_struct_size; | |
174 | unsigned target_struct_index; | |
175 | unsigned target_struct_allocsize; | |
176 | #define DEFAULT_ALLOCSIZE 10 | |
177 | ||
178 | /* The initial current target, so that there is always a semi-valid | |
179 | current target. */ | |
180 | ||
43fc25c8 JL |
181 | struct target_ops dummy_target = { |
182 | "None", /* to_shortname */ | |
183 | "None", /* to_longname */ | |
184 | "", /* to_doc */ | |
185 | 0, /* to_open */ | |
186 | 0, /* to_close */ | |
187 | find_default_attach, /* to_attach */ | |
188 | 0, /* to_detach */ | |
189 | 0, /* to_resume */ | |
190 | 0, /* to_wait */ | |
191 | 0, /* to_fetch_registers */ | |
192 | 0, /* to_store_registers */ | |
193 | 0, /* to_prepare_to_store */ | |
194 | 0, /* to_xfer_memory */ | |
195 | 0, /* to_files_info */ | |
196 | 0, /* to_insert_breakpoint */ | |
197 | 0, /* to_remove_breakpoint */ | |
198 | 0, /* to_terminal_init */ | |
199 | 0, /* to_terminal_inferior */ | |
200 | 0, /* to_terminal_ours_for_output */ | |
201 | 0, /* to_terminal_ours */ | |
202 | 0, /* to_terminal_info */ | |
203 | 0, /* to_kill */ | |
204 | 0, /* to_load */ | |
205 | 0, /* to_lookup_symbol */ | |
206 | find_default_create_inferior, /* to_create_inferior */ | |
207 | 0, /* to_mourn_inferior */ | |
208 | 0, /* to_can_run */ | |
209 | 0, /* to_notice_signals */ | |
210 | 0, /* to_thread_alive */ | |
211 | 0, /* to_stop */ | |
212 | dummy_stratum, /* to_stratum */ | |
213 | 0, /* to_next */ | |
43fc25c8 JL |
214 | 0, /* to_has_all_memory */ |
215 | 0, /* to_has_memory */ | |
47b8a5ce | 216 | 0, /* to_has_stack */ |
43fc25c8 JL |
217 | 0, /* to_has_registers */ |
218 | 0, /* to_has_execution */ | |
219 | 0, /* to_sections */ | |
220 | 0, /* to_sections_end */ | |
221 | OPS_MAGIC, /* to_magic */ | |
bd5635a1 RP |
222 | }; |
223 | ||
cad1498f | 224 | /* Top of target stack. */ |
bd5635a1 | 225 | |
cad1498f | 226 | struct target_stack_item *target_stack; |
bd5635a1 | 227 | |
cad1498f SG |
228 | /* The target structure we are currently using to talk to a process |
229 | or file or whatever "inferior" we have. */ | |
bd5635a1 | 230 | |
cad1498f | 231 | struct target_ops current_target; |
bd5635a1 | 232 | |
f2fc6e7a JK |
233 | /* Command list for target. */ |
234 | ||
235 | static struct cmd_list_element *targetlist = NULL; | |
236 | ||
16d2cc80 SS |
237 | /* Nonzero if we are debugging an attached outside process |
238 | rather than an inferior. */ | |
239 | ||
240 | int attach_flag; | |
241 | ||
43fc25c8 JL |
242 | #ifdef MAINTENANCE_CMDS |
243 | /* Non-zero if we want to see trace of target level stuff. */ | |
244 | ||
245 | static int targetdebug = 0; | |
246 | ||
247 | static void setup_target_debug PARAMS ((void)); | |
248 | ||
249 | #endif | |
250 | ||
f2fc6e7a JK |
251 | /* The user just typed 'target' without the name of a target. */ |
252 | ||
e1ce8aa5 | 253 | /* ARGSUSED */ |
f2fc6e7a JK |
254 | static void |
255 | target_command (arg, from_tty) | |
256 | char *arg; | |
257 | int from_tty; | |
258 | { | |
597dc86b | 259 | fputs_filtered ("Argument required (target name). Try `help target'\n", |
67ac9759 | 260 | gdb_stdout); |
f2fc6e7a | 261 | } |
bd5635a1 RP |
262 | |
263 | /* Add a possible target architecture to the list. */ | |
264 | ||
265 | void | |
266 | add_target (t) | |
267 | struct target_ops *t; | |
268 | { | |
bd5635a1 RP |
269 | if (!target_structs) |
270 | { | |
271 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
272 | target_structs = (struct target_ops **) xmalloc | |
273 | (target_struct_allocsize * sizeof (*target_structs)); | |
274 | } | |
275 | if (target_struct_size >= target_struct_allocsize) | |
276 | { | |
277 | target_struct_allocsize *= 2; | |
7919c3ed JG |
278 | target_structs = (struct target_ops **) |
279 | xrealloc ((char *) target_structs, | |
280 | target_struct_allocsize * sizeof (*target_structs)); | |
bd5635a1 RP |
281 | } |
282 | target_structs[target_struct_size++] = t; | |
a3ecbe7c | 283 | /* cleanup_target (t);*/ |
f2fc6e7a JK |
284 | |
285 | if (targetlist == NULL) | |
286 | add_prefix_cmd ("target", class_run, target_command, | |
287 | "Connect to a target machine or process.\n\ | |
288 | The first argument is the type or protocol of the target machine.\n\ | |
289 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
290 | information on the arguments for a particular protocol, type\n\ | |
291 | `help target ' followed by the protocol name.", | |
292 | &targetlist, "target ", 0, &cmdlist); | |
293 | add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, &targetlist); | |
bd5635a1 RP |
294 | } |
295 | ||
296 | /* Stub functions */ | |
297 | ||
298 | static void | |
299 | ignore () | |
300 | { | |
301 | } | |
302 | ||
303 | /* ARGSUSED */ | |
304 | static int | |
4fc5969d | 305 | nomemory (memaddr, myaddr, len, write, t) |
bd5635a1 RP |
306 | CORE_ADDR memaddr; |
307 | char *myaddr; | |
308 | int len; | |
309 | int write; | |
4fc5969d | 310 | struct target_ops *t; |
bd5635a1 | 311 | { |
51b57ded | 312 | errno = EIO; /* Can't read/write this location */ |
bd5635a1 RP |
313 | return 0; /* No bytes handled */ |
314 | } | |
315 | ||
316 | static void | |
317 | tcomplain () | |
318 | { | |
319 | error ("You can't do that when your target is `%s'", | |
cad1498f | 320 | current_target.to_shortname); |
bd5635a1 RP |
321 | } |
322 | ||
80d68b1d | 323 | void |
bd5635a1 RP |
324 | noprocess () |
325 | { | |
326 | error ("You can't do that without a process to debug"); | |
327 | } | |
328 | ||
e1ce8aa5 | 329 | /* ARGSUSED */ |
bd5635a1 RP |
330 | static int |
331 | nosymbol (name, addrp) | |
332 | char *name; | |
333 | CORE_ADDR *addrp; | |
334 | { | |
335 | return 1; /* Symbol does not exist in target env */ | |
336 | } | |
337 | ||
e1ce8aa5 | 338 | /* ARGSUSED */ |
bd5635a1 RP |
339 | static void |
340 | default_terminal_info (args, from_tty) | |
341 | char *args; | |
342 | int from_tty; | |
343 | { | |
67ac9759 | 344 | printf_unfiltered("No saved terminal information.\n"); |
bd5635a1 RP |
345 | } |
346 | ||
bd5635a1 RP |
347 | /* This is the default target_create_inferior and target_attach function. |
348 | If the current target is executing, it asks whether to kill it off. | |
349 | If this function returns without calling error(), it has killed off | |
350 | the target, and the operation should be attempted. */ | |
351 | ||
352 | static void | |
353 | kill_or_be_killed (from_tty) | |
354 | int from_tty; | |
355 | { | |
bd5635a1 RP |
356 | if (target_has_execution) |
357 | { | |
67ac9759 | 358 | printf_unfiltered ("You are already running a program:\n"); |
bd5635a1 RP |
359 | target_files_info (); |
360 | if (query ("Kill it? ")) { | |
e17960fb | 361 | target_kill (); |
bd5635a1 RP |
362 | if (target_has_execution) |
363 | error ("Killing the program did not help."); | |
364 | return; | |
365 | } else { | |
366 | error ("Program not killed."); | |
367 | } | |
368 | } | |
369 | tcomplain(); | |
370 | } | |
371 | ||
372 | static void | |
373 | maybe_kill_then_attach (args, from_tty) | |
374 | char *args; | |
375 | int from_tty; | |
376 | { | |
377 | kill_or_be_killed (from_tty); | |
378 | target_attach (args, from_tty); | |
379 | } | |
380 | ||
381 | static void | |
382 | maybe_kill_then_create_inferior (exec, args, env) | |
383 | char *exec; | |
384 | char *args; | |
385 | char **env; | |
386 | { | |
387 | kill_or_be_killed (0); | |
388 | target_create_inferior (exec, args, env); | |
389 | } | |
390 | ||
391 | /* Clean up a target struct so it no longer has any zero pointers in it. | |
392 | We default entries, at least to stubs that print error messages. */ | |
393 | ||
394 | static void | |
395 | cleanup_target (t) | |
396 | struct target_ops *t; | |
397 | { | |
398 | ||
bd5635a1 RP |
399 | #define de_fault(field, value) \ |
400 | if (!t->field) t->field = value | |
401 | ||
402 | /* FIELD DEFAULT VALUE */ | |
403 | ||
47b8a5ce PS |
404 | de_fault (to_open, (void (*) PARAMS((char *, int))) tcomplain); |
405 | de_fault (to_close, (void (*) PARAMS((int))) ignore); | |
bd5635a1 | 406 | de_fault (to_attach, maybe_kill_then_attach); |
47b8a5ce PS |
407 | de_fault (to_detach, (void (*) PARAMS((char *, int))) ignore); |
408 | de_fault (to_resume, (void (*) PARAMS((int, int, enum target_signal))) noprocess); | |
409 | de_fault (to_wait, (int (*) PARAMS((int, struct target_waitstatus *))) noprocess); | |
410 | de_fault (to_fetch_registers, (void (*) PARAMS((int))) ignore); | |
411 | de_fault (to_store_registers, (void (*) PARAMS((int))) noprocess); | |
412 | de_fault (to_prepare_to_store, (void (*) PARAMS((void))) noprocess); | |
413 | de_fault (to_xfer_memory, (int (*) PARAMS((CORE_ADDR, char *, int, int, struct target_ops *))) nomemory); | |
414 | de_fault (to_files_info, (void (*) PARAMS((struct target_ops *))) ignore); | |
bd5635a1 RP |
415 | de_fault (to_insert_breakpoint, memory_insert_breakpoint); |
416 | de_fault (to_remove_breakpoint, memory_remove_breakpoint); | |
47b8a5ce PS |
417 | de_fault (to_terminal_init, (void (*) PARAMS((void))) ignore); |
418 | de_fault (to_terminal_inferior, (void (*) PARAMS ((void))) ignore); | |
419 | de_fault (to_terminal_ours_for_output,(void (*) PARAMS ((void))) ignore); | |
420 | de_fault (to_terminal_ours, (void (*) PARAMS ((void))) ignore); | |
bd5635a1 | 421 | de_fault (to_terminal_info, default_terminal_info); |
47b8a5ce PS |
422 | de_fault (to_kill, (void (*) PARAMS((void))) noprocess); |
423 | de_fault (to_load, (void (*) PARAMS((char *, int))) tcomplain); | |
424 | de_fault (to_lookup_symbol, (int (*) PARAMS ((char *, CORE_ADDR *))) nosymbol); | |
bd5635a1 | 425 | de_fault (to_create_inferior, maybe_kill_then_create_inferior); |
47b8a5ce | 426 | de_fault (to_mourn_inferior, (void (*) PARAMS((void))) noprocess); |
597dc86b | 427 | de_fault (to_can_run, return_zero); |
47b8a5ce PS |
428 | de_fault (to_notice_signals, (void (*) PARAMS((int))) ignore); |
429 | de_fault (to_thread_alive, (int (*) PARAMS((int))) ignore); | |
430 | de_fault (to_stop, (void (*) PARAMS((void))) ignore); | |
bd5635a1 RP |
431 | |
432 | #undef de_fault | |
433 | } | |
434 | ||
cad1498f SG |
435 | /* Go through the target stack from top to bottom, copying over zero entries in |
436 | current_target. In effect, we are doing class inheritance through the | |
437 | pushed target vectors. */ | |
438 | ||
439 | static void | |
440 | update_current_target () | |
441 | { | |
442 | struct target_stack_item *item; | |
443 | struct target_ops *t; | |
444 | ||
445 | /* First, reset current_target */ | |
446 | memset (¤t_target, 0, sizeof current_target); | |
447 | ||
448 | for (item = target_stack; item; item = item->next) | |
449 | { | |
450 | t = item->target_ops; | |
451 | ||
452 | #define INHERIT(FIELD, TARGET) \ | |
453 | if (!current_target.FIELD) \ | |
454 | current_target.FIELD = TARGET->FIELD | |
455 | ||
456 | INHERIT (to_shortname, t); | |
457 | INHERIT (to_longname, t); | |
458 | INHERIT (to_doc, t); | |
459 | INHERIT (to_open, t); | |
460 | INHERIT (to_close, t); | |
461 | INHERIT (to_attach, t); | |
462 | INHERIT (to_detach, t); | |
463 | INHERIT (to_resume, t); | |
464 | INHERIT (to_wait, t); | |
465 | INHERIT (to_fetch_registers, t); | |
466 | INHERIT (to_store_registers, t); | |
467 | INHERIT (to_prepare_to_store, t); | |
468 | INHERIT (to_xfer_memory, t); | |
469 | INHERIT (to_files_info, t); | |
470 | INHERIT (to_insert_breakpoint, t); | |
471 | INHERIT (to_remove_breakpoint, t); | |
472 | INHERIT (to_terminal_init, t); | |
473 | INHERIT (to_terminal_inferior, t); | |
474 | INHERIT (to_terminal_ours_for_output, t); | |
475 | INHERIT (to_terminal_ours, t); | |
476 | INHERIT (to_terminal_info, t); | |
477 | INHERIT (to_kill, t); | |
478 | INHERIT (to_load, t); | |
479 | INHERIT (to_lookup_symbol, t); | |
480 | INHERIT (to_create_inferior, t); | |
481 | INHERIT (to_mourn_inferior, t); | |
482 | INHERIT (to_can_run, t); | |
483 | INHERIT (to_notice_signals, t); | |
43fc25c8 JL |
484 | INHERIT (to_thread_alive, t); |
485 | INHERIT (to_stop, t); | |
cad1498f SG |
486 | INHERIT (to_stratum, t); |
487 | INHERIT (DONT_USE, t); | |
488 | INHERIT (to_has_all_memory, t); | |
489 | INHERIT (to_has_memory, t); | |
490 | INHERIT (to_has_stack, t); | |
491 | INHERIT (to_has_registers, t); | |
492 | INHERIT (to_has_execution, t); | |
493 | INHERIT (to_sections, t); | |
494 | INHERIT (to_sections_end, t); | |
495 | INHERIT (to_magic, t); | |
496 | ||
497 | #undef INHERIT | |
498 | } | |
499 | } | |
500 | ||
bd5635a1 RP |
501 | /* Push a new target type into the stack of the existing target accessors, |
502 | possibly superseding some of the existing accessors. | |
503 | ||
504 | Result is zero if the pushed target ended up on top of the stack, | |
505 | nonzero if at least one target is on top of it. | |
506 | ||
507 | Rather than allow an empty stack, we always have the dummy target at | |
508 | the bottom stratum, so we can call the function vectors without | |
509 | checking them. */ | |
510 | ||
511 | int | |
512 | push_target (t) | |
513 | struct target_ops *t; | |
514 | { | |
cad1498f SG |
515 | struct target_stack_item *cur, *prev, *tmp; |
516 | ||
517 | /* Check magic number. If wrong, it probably means someone changed | |
518 | the struct definition, but not all the places that initialize one. */ | |
519 | if (t->to_magic != OPS_MAGIC) | |
520 | { | |
521 | fprintf_unfiltered(gdb_stderr, | |
522 | "Magic number of %s target struct wrong\n", | |
523 | t->to_shortname); | |
524 | abort(); | |
525 | } | |
526 | ||
527 | /* Find the proper stratum to install this target in. */ | |
528 | ||
529 | for (prev = NULL, cur = target_stack; cur; prev = cur, cur = cur->next) | |
530 | { | |
531 | if ((int)(t->to_stratum) >= (int)(cur->target_ops->to_stratum)) | |
532 | break; | |
533 | } | |
534 | ||
535 | /* If there's already targets at this stratum, remove them. */ | |
536 | ||
537 | if (cur) | |
538 | while (t->to_stratum == cur->target_ops->to_stratum) | |
539 | { | |
540 | /* There's already something on this stratum. Close it off. */ | |
8fc2b417 SG |
541 | if (cur->target_ops->to_close) |
542 | (cur->target_ops->to_close) (0); | |
cad1498f SG |
543 | if (prev) |
544 | prev->next = cur->next; /* Unchain old target_ops */ | |
545 | else | |
546 | target_stack = cur->next; /* Unchain first on list */ | |
547 | tmp = cur->next; | |
548 | free (cur); | |
549 | cur = tmp; | |
550 | } | |
551 | ||
552 | /* We have removed all targets in our stratum, now add the new one. */ | |
553 | ||
f6d5d006 JK |
554 | tmp = (struct target_stack_item *) |
555 | xmalloc (sizeof (struct target_stack_item)); | |
cad1498f SG |
556 | tmp->next = cur; |
557 | tmp->target_ops = t; | |
bd5635a1 | 558 | |
bd5635a1 | 559 | if (prev) |
cad1498f | 560 | prev->next = tmp; |
bd5635a1 | 561 | else |
cad1498f SG |
562 | target_stack = tmp; |
563 | ||
564 | update_current_target (); | |
bd5635a1 | 565 | |
cad1498f | 566 | cleanup_target (¤t_target); /* Fill in the gaps */ |
43fc25c8 JL |
567 | |
568 | #ifdef MAINTENANCE_CMDS | |
569 | if (targetdebug) | |
570 | setup_target_debug (); | |
571 | #endif | |
572 | ||
bd5635a1 RP |
573 | return prev != 0; |
574 | } | |
575 | ||
576 | /* Remove a target_ops vector from the stack, wherever it may be. | |
cad1498f | 577 | Return how many times it was removed (0 or 1). */ |
bd5635a1 RP |
578 | |
579 | int | |
580 | unpush_target (t) | |
581 | struct target_ops *t; | |
582 | { | |
cad1498f | 583 | struct target_stack_item *cur, *prev; |
bd5635a1 | 584 | |
a3ecbe7c SG |
585 | if (t->to_close) |
586 | t->to_close (0); /* Let it clean up */ | |
67e947de | 587 | |
cad1498f SG |
588 | /* Look for the specified target. Note that we assume that a target |
589 | can only occur once in the target stack. */ | |
590 | ||
591 | for (cur = target_stack, prev = NULL; cur; prev = cur, cur = cur->next) | |
592 | if (cur->target_ops == t) | |
593 | break; | |
594 | ||
595 | if (!cur) | |
596 | return 0; /* Didn't find target_ops, quit now */ | |
597 | ||
598 | /* Unchain the target */ | |
599 | ||
600 | if (!prev) | |
67e947de | 601 | target_stack = cur->next; |
cad1498f SG |
602 | else |
603 | prev->next = cur->next; | |
604 | ||
605 | free (cur); /* Release the target_stack_item */ | |
606 | ||
67e947de SG |
607 | update_current_target (); |
608 | cleanup_target (¤t_target); | |
cad1498f SG |
609 | |
610 | return 1; | |
bd5635a1 RP |
611 | } |
612 | ||
613 | void | |
614 | pop_target () | |
615 | { | |
cad1498f SG |
616 | (current_target.to_close)(0); /* Let it clean up */ |
617 | if (unpush_target (target_stack->target_ops) == 1) | |
618 | return; | |
619 | ||
620 | fprintf_unfiltered(gdb_stderr, | |
621 | "pop_target couldn't find target %s\n", | |
622 | current_target.to_shortname); | |
623 | abort(); | |
bd5635a1 RP |
624 | } |
625 | ||
49781499 | 626 | #undef MIN |
e17960fb JG |
627 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) |
628 | ||
4ad0021e JK |
629 | /* target_read_string -- read a null terminated string, up to LEN bytes, |
630 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
631 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
632 | is responsible for freeing it. Return the number of bytes successfully | |
633 | read. */ | |
e17960fb JG |
634 | |
635 | int | |
4ad0021e | 636 | target_read_string (memaddr, string, len, errnop) |
e17960fb | 637 | CORE_ADDR memaddr; |
4ad0021e | 638 | char **string; |
e17960fb | 639 | int len; |
4ad0021e | 640 | int *errnop; |
e17960fb JG |
641 | { |
642 | int tlen, origlen, offset, i; | |
643 | char buf[4]; | |
4ad0021e JK |
644 | int errcode = 0; |
645 | char *buffer; | |
646 | int buffer_allocated; | |
647 | char *bufptr; | |
648 | unsigned int nbytes_read = 0; | |
649 | ||
650 | /* Small for testing. */ | |
651 | buffer_allocated = 4; | |
652 | buffer = xmalloc (buffer_allocated); | |
653 | bufptr = buffer; | |
e17960fb JG |
654 | |
655 | origlen = len; | |
656 | ||
657 | while (len > 0) | |
658 | { | |
659 | tlen = MIN (len, 4 - (memaddr & 3)); | |
660 | offset = memaddr & 3; | |
661 | ||
47b8a5ce | 662 | errcode = target_xfer_memory (memaddr & ~3, buf, 4, 0, NULL); |
4ad0021e | 663 | if (errcode != 0) |
47b8a5ce PS |
664 | { |
665 | /* The transfer request might have crossed the boundary to an | |
666 | unallocated region of memory. Retry the transfer, requesting | |
667 | a single byte. */ | |
668 | tlen = 1; | |
669 | offset = 0; | |
670 | errcode = target_xfer_memory (memaddr, buf, 1, 0, NULL); | |
671 | if (errcode != 0) | |
672 | goto done; | |
673 | } | |
4ad0021e JK |
674 | |
675 | if (bufptr - buffer + tlen > buffer_allocated) | |
676 | { | |
677 | unsigned int bytes; | |
678 | bytes = bufptr - buffer; | |
679 | buffer_allocated *= 2; | |
680 | buffer = xrealloc (buffer, buffer_allocated); | |
681 | bufptr = buffer + bytes; | |
682 | } | |
e17960fb JG |
683 | |
684 | for (i = 0; i < tlen; i++) | |
685 | { | |
4ad0021e | 686 | *bufptr++ = buf[i + offset]; |
e17960fb | 687 | if (buf[i + offset] == '\000') |
4ad0021e JK |
688 | { |
689 | nbytes_read += i + 1; | |
690 | goto done; | |
691 | } | |
e17960fb JG |
692 | } |
693 | ||
694 | memaddr += tlen; | |
695 | len -= tlen; | |
4ad0021e | 696 | nbytes_read += tlen; |
e17960fb | 697 | } |
4ad0021e JK |
698 | done: |
699 | if (errnop != NULL) | |
700 | *errnop = errcode; | |
701 | if (string != NULL) | |
702 | *string = buffer; | |
703 | return nbytes_read; | |
e17960fb JG |
704 | } |
705 | ||
49781499 JK |
706 | /* Read LEN bytes of target memory at address MEMADDR, placing the results in |
707 | GDB's memory at MYADDR. Returns either 0 for success or an errno value | |
708 | if any error occurs. | |
bd5635a1 | 709 | |
49781499 JK |
710 | If an error occurs, no guarantee is made about the contents of the data at |
711 | MYADDR. In particular, the caller should not depend upon partial reads | |
712 | filling the buffer with good data. There is no way for the caller to know | |
713 | how much good data might have been transfered anyway. Callers that can | |
714 | deal with partial reads should call target_read_memory_partial. */ | |
bd5635a1 RP |
715 | |
716 | int | |
717 | target_read_memory (memaddr, myaddr, len) | |
718 | CORE_ADDR memaddr; | |
719 | char *myaddr; | |
720 | int len; | |
721 | { | |
47b8a5ce PS |
722 | return target_xfer_memory (memaddr, myaddr, len, 0, NULL); |
723 | } | |
724 | ||
725 | int | |
726 | target_read_memory_section (memaddr, myaddr, len, bfd_section) | |
727 | CORE_ADDR memaddr; | |
728 | char *myaddr; | |
729 | int len; | |
730 | asection *bfd_section; | |
731 | { | |
732 | return target_xfer_memory (memaddr, myaddr, len, 0, bfd_section); | |
bd5635a1 RP |
733 | } |
734 | ||
49781499 JK |
735 | /* Read LEN bytes of target memory at address MEMADDR, placing the results |
736 | in GDB's memory at MYADDR. Returns a count of the bytes actually read, | |
737 | and optionally an errno value in the location pointed to by ERRNOPTR | |
738 | if ERRNOPTR is non-null. */ | |
739 | ||
740 | int | |
741 | target_read_memory_partial (memaddr, myaddr, len, errnoptr) | |
742 | CORE_ADDR memaddr; | |
743 | char *myaddr; | |
744 | int len; | |
745 | int *errnoptr; | |
746 | { | |
747 | int nread; /* Number of bytes actually read. */ | |
748 | int errcode; /* Error from last read. */ | |
749 | ||
750 | /* First try a complete read. */ | |
47b8a5ce | 751 | errcode = target_xfer_memory (memaddr, myaddr, len, 0, NULL); |
49781499 JK |
752 | if (errcode == 0) |
753 | { | |
754 | /* Got it all. */ | |
755 | nread = len; | |
756 | } | |
757 | else | |
758 | { | |
759 | /* Loop, reading one byte at a time until we get as much as we can. */ | |
760 | for (errcode = 0, nread = 0; len > 0 && errcode == 0; nread++, len--) | |
761 | { | |
47b8a5ce | 762 | errcode = target_xfer_memory (memaddr++, myaddr++, 1, 0, NULL); |
49781499 JK |
763 | } |
764 | /* If an error, the last read was unsuccessful, so adjust count. */ | |
765 | if (errcode != 0) | |
766 | { | |
767 | nread--; | |
768 | } | |
769 | } | |
770 | if (errnoptr != NULL) | |
771 | { | |
772 | *errnoptr = errcode; | |
773 | } | |
774 | return (nread); | |
775 | } | |
776 | ||
bd5635a1 RP |
777 | int |
778 | target_write_memory (memaddr, myaddr, len) | |
779 | CORE_ADDR memaddr; | |
780 | char *myaddr; | |
781 | int len; | |
782 | { | |
47b8a5ce | 783 | return target_xfer_memory (memaddr, myaddr, len, 1, NULL); |
bd5635a1 RP |
784 | } |
785 | ||
47b8a5ce PS |
786 | /* This variable is used to pass section information down to targets. This |
787 | *should* be done by adding an argument to the target_xfer_memory function | |
788 | of all the targets, but I didn't feel like changing 50+ files. */ | |
789 | ||
790 | asection *target_memory_bfd_section = NULL; | |
791 | ||
49781499 JK |
792 | /* Move memory to or from the targets. Iterate until all of it has |
793 | been moved, if necessary. The top target gets priority; anything | |
794 | it doesn't want, is offered to the next one down, etc. Note the | |
795 | business with curlen: if an early target says "no, but I have a | |
796 | boundary overlapping this xfer" then we shorten what we offer to | |
797 | the subsequent targets so the early guy will get a chance at the | |
798 | tail before the subsequent ones do. | |
799 | ||
800 | Result is 0 or errno value. */ | |
801 | ||
47b8a5ce PS |
802 | static int |
803 | target_xfer_memory (memaddr, myaddr, len, write, bfd_section) | |
bd5635a1 RP |
804 | CORE_ADDR memaddr; |
805 | char *myaddr; | |
806 | int len; | |
807 | int write; | |
47b8a5ce | 808 | asection *bfd_section; |
bd5635a1 RP |
809 | { |
810 | int curlen; | |
811 | int res; | |
812 | struct target_ops *t; | |
cad1498f | 813 | struct target_stack_item *item; |
49781499 | 814 | |
47b8a5ce PS |
815 | /* Zero length requests are ok and require no work. */ |
816 | if (len == 0) | |
817 | return 0; | |
818 | ||
819 | target_memory_bfd_section = bfd_section; | |
820 | ||
49781499 JK |
821 | /* to_xfer_memory is not guaranteed to set errno, even when it returns |
822 | 0. */ | |
823 | errno = 0; | |
824 | ||
bd5635a1 | 825 | /* The quick case is that the top target does it all. */ |
cad1498f SG |
826 | res = current_target.to_xfer_memory |
827 | (memaddr, myaddr, len, write, ¤t_target); | |
bd5635a1 RP |
828 | if (res == len) |
829 | return 0; | |
830 | ||
831 | if (res > 0) | |
832 | goto bump; | |
833 | /* If res <= 0 then we call it again in the loop. Ah well. */ | |
834 | ||
835 | for (; len > 0;) | |
836 | { | |
837 | curlen = len; /* Want to do it all */ | |
cad1498f | 838 | for (item = target_stack; item; item = item->next) |
bd5635a1 | 839 | { |
cad1498f | 840 | t = item->target_ops; |
a3ecbe7c SG |
841 | if (!t->to_has_memory) |
842 | continue; | |
cad1498f SG |
843 | |
844 | res = t->to_xfer_memory (memaddr, myaddr, curlen, write, t); | |
845 | if (res > 0) | |
846 | break; /* Handled all or part of xfer */ | |
847 | if (t->to_has_all_memory) | |
848 | break; | |
bd5635a1 | 849 | } |
cad1498f | 850 | |
bd5635a1 RP |
851 | if (res <= 0) |
852 | { | |
853 | /* If this address is for nonexistent memory, | |
854 | read zeros if reading, or do nothing if writing. Return error. */ | |
855 | if (!write) | |
a8e033f2 | 856 | memset (myaddr, 0, len); |
e17960fb JG |
857 | if (errno == 0) |
858 | return EIO; | |
859 | else | |
860 | return errno; | |
bd5635a1 RP |
861 | } |
862 | bump: | |
863 | memaddr += res; | |
864 | myaddr += res; | |
865 | len -= res; | |
866 | } | |
867 | return 0; /* We managed to cover it all somehow. */ | |
868 | } | |
869 | ||
870 | ||
e1ce8aa5 | 871 | /* ARGSUSED */ |
bd5635a1 RP |
872 | static void |
873 | target_info (args, from_tty) | |
874 | char *args; | |
875 | int from_tty; | |
876 | { | |
877 | struct target_ops *t; | |
cad1498f | 878 | struct target_stack_item *item; |
bd5635a1 RP |
879 | int has_all_mem = 0; |
880 | ||
80d68b1d | 881 | if (symfile_objfile != NULL) |
67ac9759 | 882 | printf_unfiltered ("Symbols from \"%s\".\n", symfile_objfile->name); |
bd5635a1 RP |
883 | |
884 | #ifdef FILES_INFO_HOOK | |
885 | if (FILES_INFO_HOOK ()) | |
886 | return; | |
887 | #endif | |
888 | ||
cad1498f | 889 | for (item = target_stack; item; item = item->next) |
bd5635a1 | 890 | { |
cad1498f SG |
891 | t = item->target_ops; |
892 | ||
a3ecbe7c SG |
893 | if (!t->to_has_memory) |
894 | continue; | |
895 | ||
bd5635a1 RP |
896 | if ((int)(t->to_stratum) <= (int)dummy_stratum) |
897 | continue; | |
898 | if (has_all_mem) | |
cad1498f | 899 | printf_unfiltered("\tWhile running this, GDB does not access memory from...\n"); |
67ac9759 | 900 | printf_unfiltered("%s:\n", t->to_longname); |
e17960fb | 901 | (t->to_files_info)(t); |
bd5635a1 RP |
902 | has_all_mem = t->to_has_all_memory; |
903 | } | |
904 | } | |
905 | ||
f2fc6e7a JK |
906 | /* This is to be called by the open routine before it does |
907 | anything. */ | |
bd5635a1 | 908 | |
f2fc6e7a JK |
909 | void |
910 | target_preopen (from_tty) | |
bd5635a1 RP |
911 | int from_tty; |
912 | { | |
bd5635a1 RP |
913 | dont_repeat(); |
914 | ||
bd5635a1 RP |
915 | if (target_has_execution) |
916 | { | |
917 | if (query ("A program is being debugged already. Kill it? ")) | |
e17960fb | 918 | target_kill (); |
bd5635a1 RP |
919 | else |
920 | error ("Program not killed."); | |
921 | } | |
4ad0021e JK |
922 | |
923 | /* Calling target_kill may remove the target from the stack. But if | |
924 | it doesn't (which seems like a win for UDI), remove it now. */ | |
925 | ||
926 | if (target_has_execution) | |
927 | pop_target (); | |
bd5635a1 RP |
928 | } |
929 | ||
49781499 JK |
930 | /* Detach a target after doing deferred register stores. */ |
931 | ||
932 | void | |
933 | target_detach (args, from_tty) | |
934 | char *args; | |
935 | int from_tty; | |
936 | { | |
937 | /* Handle any optimized stores to the inferior. */ | |
938 | #ifdef DO_DEFERRED_STORES | |
939 | DO_DEFERRED_STORES; | |
940 | #endif | |
cad1498f | 941 | (current_target.to_detach) (args, from_tty); |
49781499 JK |
942 | } |
943 | ||
1340861c KH |
944 | void |
945 | target_link (modname, t_reloc) | |
946 | char *modname; | |
947 | CORE_ADDR *t_reloc; | |
948 | { | |
cad1498f | 949 | if (STREQ(current_target.to_shortname, "rombug")) |
1340861c | 950 | { |
cad1498f | 951 | (current_target.to_lookup_symbol) (modname, t_reloc); |
16d2cc80 SS |
952 | if (*t_reloc == 0) |
953 | error("Unable to link to %s and get relocation in rombug", modname); | |
1340861c KH |
954 | } |
955 | else | |
956 | *t_reloc = (CORE_ADDR)-1; | |
957 | } | |
958 | ||
597dc86b SG |
959 | /* Look through the list of possible targets for a target that can |
960 | execute a run or attach command without any other data. This is | |
961 | used to locate the default process stratum. | |
962 | ||
963 | Result is always valid (error() is called for errors). */ | |
964 | ||
965 | static struct target_ops * | |
966 | find_default_run_target (do_mesg) | |
967 | char *do_mesg; | |
968 | { | |
969 | struct target_ops **t; | |
49781499 | 970 | struct target_ops *runable = NULL; |
597dc86b SG |
971 | int count; |
972 | ||
973 | count = 0; | |
974 | ||
975 | for (t = target_structs; t < target_structs + target_struct_size; | |
976 | ++t) | |
977 | { | |
43fc25c8 | 978 | if ((*t)->to_can_run && target_can_run(*t)) |
597dc86b SG |
979 | { |
980 | runable = *t; | |
981 | ++count; | |
982 | } | |
983 | } | |
984 | ||
985 | if (count != 1) | |
986 | error ("Don't know how to %s. Try \"help target\".", do_mesg); | |
987 | ||
988 | return runable; | |
989 | } | |
990 | ||
991 | void | |
992 | find_default_attach (args, from_tty) | |
993 | char *args; | |
994 | int from_tty; | |
995 | { | |
996 | struct target_ops *t; | |
997 | ||
998 | t = find_default_run_target("attach"); | |
999 | (t->to_attach) (args, from_tty); | |
1000 | return; | |
1001 | } | |
1002 | ||
1003 | void | |
1004 | find_default_create_inferior (exec_file, allargs, env) | |
1005 | char *exec_file; | |
1006 | char *allargs; | |
1007 | char **env; | |
1008 | { | |
1009 | struct target_ops *t; | |
1010 | ||
1011 | t = find_default_run_target("run"); | |
1012 | (t->to_create_inferior) (exec_file, allargs, env); | |
1013 | return; | |
1014 | } | |
1015 | ||
1016 | static int | |
1017 | return_zero () | |
1018 | { | |
1019 | return 0; | |
1020 | } | |
1021 | ||
49781499 JK |
1022 | struct target_ops * |
1023 | find_core_target () | |
1024 | { | |
1025 | struct target_ops **t; | |
1026 | struct target_ops *runable = NULL; | |
1027 | int count; | |
1028 | ||
1029 | count = 0; | |
1030 | ||
1031 | for (t = target_structs; t < target_structs + target_struct_size; | |
1032 | ++t) | |
1033 | { | |
1034 | if ((*t)->to_stratum == core_stratum) | |
1035 | { | |
1036 | runable = *t; | |
1037 | ++count; | |
1038 | } | |
1039 | } | |
1040 | ||
1041 | return(count == 1 ? runable : NULL); | |
1042 | } | |
67ac9759 | 1043 | \f |
16d2cc80 SS |
1044 | /* The inferior process has died. Long live the inferior! */ |
1045 | ||
1046 | void | |
1047 | generic_mourn_inferior () | |
1048 | { | |
cad1498f SG |
1049 | extern int show_breakpoint_hit_counts; |
1050 | ||
16d2cc80 SS |
1051 | inferior_pid = 0; |
1052 | attach_flag = 0; | |
1053 | breakpoint_init_inferior (); | |
1054 | registers_changed (); | |
1055 | ||
1056 | #ifdef CLEAR_DEFERRED_STORES | |
1057 | /* Delete any pending stores to the inferior... */ | |
1058 | CLEAR_DEFERRED_STORES; | |
1059 | #endif | |
1060 | ||
1061 | reopen_exec_file (); | |
1062 | reinit_frame_cache (); | |
1063 | ||
1064 | /* It is confusing to the user for ignore counts to stick around | |
1065 | from previous runs of the inferior. So clear them. */ | |
cad1498f SG |
1066 | /* However, it is more confusing for the ignore counts to disappear when |
1067 | using hit counts. So don't clear them if we're counting hits. */ | |
1068 | if (!show_breakpoint_hit_counts) | |
1069 | breakpoint_clear_ignore_counts (); | |
16d2cc80 SS |
1070 | } |
1071 | \f | |
67ac9759 JK |
1072 | /* This table must match in order and size the signals in enum target_signal |
1073 | in target.h. */ | |
1074 | static struct { | |
1075 | char *name; | |
1076 | char *string; | |
1077 | } signals [] = | |
1078 | { | |
1079 | {"0", "Signal 0"}, | |
1080 | {"SIGHUP", "Hangup"}, | |
1081 | {"SIGINT", "Interrupt"}, | |
1082 | {"SIGQUIT", "Quit"}, | |
1083 | {"SIGILL", "Illegal instruction"}, | |
1084 | {"SIGTRAP", "Trace/breakpoint trap"}, | |
1085 | {"SIGABRT", "Aborted"}, | |
1086 | {"SIGEMT", "Emulation trap"}, | |
1087 | {"SIGFPE", "Arithmetic exception"}, | |
1088 | {"SIGKILL", "Killed"}, | |
1089 | {"SIGBUS", "Bus error"}, | |
1090 | {"SIGSEGV", "Segmentation fault"}, | |
1091 | {"SIGSYS", "Bad system call"}, | |
1092 | {"SIGPIPE", "Broken pipe"}, | |
1093 | {"SIGALRM", "Alarm clock"}, | |
1094 | {"SIGTERM", "Terminated"}, | |
1095 | {"SIGURG", "Urgent I/O condition"}, | |
1096 | {"SIGSTOP", "Stopped (signal)"}, | |
1097 | {"SIGTSTP", "Stopped (user)"}, | |
1098 | {"SIGCONT", "Continued"}, | |
1099 | {"SIGCHLD", "Child status changed"}, | |
1100 | {"SIGTTIN", "Stopped (tty input)"}, | |
1101 | {"SIGTTOU", "Stopped (tty output)"}, | |
1102 | {"SIGIO", "I/O possible"}, | |
1103 | {"SIGXCPU", "CPU time limit exceeded"}, | |
1104 | {"SIGXFSZ", "File size limit exceeded"}, | |
1105 | {"SIGVTALRM", "Virtual timer expired"}, | |
1106 | {"SIGPROF", "Profiling timer expired"}, | |
1107 | {"SIGWINCH", "Window size changed"}, | |
1108 | {"SIGLOST", "Resource lost"}, | |
1109 | {"SIGUSR1", "User defined signal 1"}, | |
1110 | {"SIGUSR2", "User defined signal 2"}, | |
1111 | {"SIGPWR", "Power fail/restart"}, | |
1112 | {"SIGPOLL", "Pollable event occurred"}, | |
1113 | {"SIGWIND", "SIGWIND"}, | |
1114 | {"SIGPHONE", "SIGPHONE"}, | |
1115 | {"SIGWAITING", "Process's LWPs are blocked"}, | |
1116 | {"SIGLWP", "Signal LWP"}, | |
1117 | {"SIGDANGER", "Swap space dangerously low"}, | |
1118 | {"SIGGRANT", "Monitor mode granted"}, | |
1119 | {"SIGRETRACT", "Need to relinguish monitor mode"}, | |
1120 | {"SIGMSG", "Monitor mode data available"}, | |
1121 | {"SIGSOUND", "Sound completed"}, | |
1122 | {"SIGSAK", "Secure attention"}, | |
43fc25c8 JL |
1123 | {"SIGPRIO", "SIGPRIO"}, |
1124 | {"SIG33", "Real-time event 33"}, | |
1125 | {"SIG34", "Real-time event 34"}, | |
1126 | {"SIG35", "Real-time event 35"}, | |
1127 | {"SIG36", "Real-time event 36"}, | |
1128 | {"SIG37", "Real-time event 37"}, | |
1129 | {"SIG38", "Real-time event 38"}, | |
1130 | {"SIG39", "Real-time event 39"}, | |
1131 | {"SIG40", "Real-time event 40"}, | |
1132 | {"SIG41", "Real-time event 41"}, | |
1133 | {"SIG42", "Real-time event 42"}, | |
1134 | {"SIG43", "Real-time event 43"}, | |
1135 | {"SIG44", "Real-time event 44"}, | |
1136 | {"SIG45", "Real-time event 45"}, | |
1137 | {"SIG46", "Real-time event 46"}, | |
1138 | {"SIG47", "Real-time event 47"}, | |
1139 | {"SIG48", "Real-time event 48"}, | |
1140 | {"SIG49", "Real-time event 49"}, | |
1141 | {"SIG50", "Real-time event 50"}, | |
1142 | {"SIG51", "Real-time event 51"}, | |
1143 | {"SIG52", "Real-time event 52"}, | |
1144 | {"SIG53", "Real-time event 53"}, | |
1145 | {"SIG54", "Real-time event 54"}, | |
1146 | {"SIG55", "Real-time event 55"}, | |
1147 | {"SIG56", "Real-time event 56"}, | |
1148 | {"SIG57", "Real-time event 57"}, | |
1149 | {"SIG58", "Real-time event 58"}, | |
1150 | {"SIG59", "Real-time event 59"}, | |
1151 | {"SIG60", "Real-time event 60"}, | |
1152 | {"SIG61", "Real-time event 61"}, | |
1153 | {"SIG62", "Real-time event 62"}, | |
1154 | {"SIG63", "Real-time event 63"}, | |
1155 | ||
47b8a5ce | 1156 | #if defined(MACH) || defined(__MACH__) |
647e52ea SG |
1157 | /* Mach exceptions */ |
1158 | {"EXC_BAD_ACCESS", "Could not access memory"}, | |
1159 | {"EXC_BAD_INSTRUCTION", "Illegal instruction/operand"}, | |
1160 | {"EXC_ARITHMETIC", "Arithmetic exception"}, | |
1161 | {"EXC_EMULATION", "Emulation instruction"}, | |
1162 | {"EXC_SOFTWARE", "Software generated exception"}, | |
1163 | {"EXC_BREAKPOINT", "Breakpoint"}, | |
47b8a5ce | 1164 | #endif |
67ac9759 | 1165 | {NULL, "Unknown signal"}, |
4ad0021e JK |
1166 | {NULL, "Internal error: printing TARGET_SIGNAL_DEFAULT"}, |
1167 | ||
67ac9759 JK |
1168 | /* Last entry, used to check whether the table is the right size. */ |
1169 | {NULL, "TARGET_SIGNAL_MAGIC"} | |
1170 | }; | |
1171 | ||
1172 | /* Return the string for a signal. */ | |
1173 | char * | |
1174 | target_signal_to_string (sig) | |
1175 | enum target_signal sig; | |
1176 | { | |
1177 | return signals[sig].string; | |
1178 | } | |
1179 | ||
1180 | /* Return the name for a signal. */ | |
1181 | char * | |
1182 | target_signal_to_name (sig) | |
1183 | enum target_signal sig; | |
1184 | { | |
1185 | if (sig == TARGET_SIGNAL_UNKNOWN) | |
1186 | /* I think the code which prints this will always print it along with | |
1187 | the string, so no need to be verbose. */ | |
1188 | return "?"; | |
1189 | return signals[sig].name; | |
1190 | } | |
1191 | ||
1192 | /* Given a name, return its signal. */ | |
1193 | enum target_signal | |
1194 | target_signal_from_name (name) | |
1195 | char *name; | |
1196 | { | |
1197 | enum target_signal sig; | |
1198 | ||
1199 | /* It's possible we also should allow "SIGCLD" as well as "SIGCHLD" | |
1200 | for TARGET_SIGNAL_SIGCHLD. SIGIOT, on the other hand, is more | |
1201 | questionable; seems like by now people should call it SIGABRT | |
1202 | instead. */ | |
1203 | ||
4ad0021e JK |
1204 | /* This ugly cast brought to you by the native VAX compiler. */ |
1205 | for (sig = TARGET_SIGNAL_HUP; | |
1206 | signals[sig].name != NULL; | |
1207 | sig = (enum target_signal)((int)sig + 1)) | |
67ac9759 JK |
1208 | if (STREQ (name, signals[sig].name)) |
1209 | return sig; | |
1210 | return TARGET_SIGNAL_UNKNOWN; | |
1211 | } | |
4ad0021e JK |
1212 | \f |
1213 | /* The following functions are to help certain targets deal | |
1214 | with the signal/waitstatus stuff. They could just as well be in | |
1215 | a file called native-utils.c or unixwaitstatus-utils.c or whatever. */ | |
1216 | ||
1217 | /* Convert host signal to our signals. */ | |
1218 | enum target_signal | |
1219 | target_signal_from_host (hostsig) | |
1220 | int hostsig; | |
1221 | { | |
1222 | /* A switch statement would make sense but would require special kludges | |
1223 | to deal with the cases where more than one signal has the same number. */ | |
1224 | ||
1225 | if (hostsig == 0) return TARGET_SIGNAL_0; | |
1226 | ||
1227 | #if defined (SIGHUP) | |
1228 | if (hostsig == SIGHUP) return TARGET_SIGNAL_HUP; | |
1229 | #endif | |
1230 | #if defined (SIGINT) | |
1231 | if (hostsig == SIGINT) return TARGET_SIGNAL_INT; | |
1232 | #endif | |
1233 | #if defined (SIGQUIT) | |
1234 | if (hostsig == SIGQUIT) return TARGET_SIGNAL_QUIT; | |
1235 | #endif | |
1236 | #if defined (SIGILL) | |
1237 | if (hostsig == SIGILL) return TARGET_SIGNAL_ILL; | |
1238 | #endif | |
1239 | #if defined (SIGTRAP) | |
1240 | if (hostsig == SIGTRAP) return TARGET_SIGNAL_TRAP; | |
1241 | #endif | |
1242 | #if defined (SIGABRT) | |
1243 | if (hostsig == SIGABRT) return TARGET_SIGNAL_ABRT; | |
1244 | #endif | |
1245 | #if defined (SIGEMT) | |
1246 | if (hostsig == SIGEMT) return TARGET_SIGNAL_EMT; | |
1247 | #endif | |
1248 | #if defined (SIGFPE) | |
1249 | if (hostsig == SIGFPE) return TARGET_SIGNAL_FPE; | |
1250 | #endif | |
1251 | #if defined (SIGKILL) | |
1252 | if (hostsig == SIGKILL) return TARGET_SIGNAL_KILL; | |
1253 | #endif | |
1254 | #if defined (SIGBUS) | |
1255 | if (hostsig == SIGBUS) return TARGET_SIGNAL_BUS; | |
1256 | #endif | |
1257 | #if defined (SIGSEGV) | |
1258 | if (hostsig == SIGSEGV) return TARGET_SIGNAL_SEGV; | |
1259 | #endif | |
1260 | #if defined (SIGSYS) | |
1261 | if (hostsig == SIGSYS) return TARGET_SIGNAL_SYS; | |
1262 | #endif | |
1263 | #if defined (SIGPIPE) | |
1264 | if (hostsig == SIGPIPE) return TARGET_SIGNAL_PIPE; | |
1265 | #endif | |
1266 | #if defined (SIGALRM) | |
1267 | if (hostsig == SIGALRM) return TARGET_SIGNAL_ALRM; | |
1268 | #endif | |
1269 | #if defined (SIGTERM) | |
1270 | if (hostsig == SIGTERM) return TARGET_SIGNAL_TERM; | |
1271 | #endif | |
1272 | #if defined (SIGUSR1) | |
1273 | if (hostsig == SIGUSR1) return TARGET_SIGNAL_USR1; | |
1274 | #endif | |
1275 | #if defined (SIGUSR2) | |
1276 | if (hostsig == SIGUSR2) return TARGET_SIGNAL_USR2; | |
1277 | #endif | |
1278 | #if defined (SIGCLD) | |
1279 | if (hostsig == SIGCLD) return TARGET_SIGNAL_CHLD; | |
1280 | #endif | |
1281 | #if defined (SIGCHLD) | |
1282 | if (hostsig == SIGCHLD) return TARGET_SIGNAL_CHLD; | |
1283 | #endif | |
1284 | #if defined (SIGPWR) | |
1285 | if (hostsig == SIGPWR) return TARGET_SIGNAL_PWR; | |
1286 | #endif | |
1287 | #if defined (SIGWINCH) | |
1288 | if (hostsig == SIGWINCH) return TARGET_SIGNAL_WINCH; | |
1289 | #endif | |
1290 | #if defined (SIGURG) | |
1291 | if (hostsig == SIGURG) return TARGET_SIGNAL_URG; | |
1292 | #endif | |
1293 | #if defined (SIGIO) | |
1294 | if (hostsig == SIGIO) return TARGET_SIGNAL_IO; | |
1295 | #endif | |
1296 | #if defined (SIGPOLL) | |
1297 | if (hostsig == SIGPOLL) return TARGET_SIGNAL_POLL; | |
1298 | #endif | |
1299 | #if defined (SIGSTOP) | |
1300 | if (hostsig == SIGSTOP) return TARGET_SIGNAL_STOP; | |
1301 | #endif | |
1302 | #if defined (SIGTSTP) | |
1303 | if (hostsig == SIGTSTP) return TARGET_SIGNAL_TSTP; | |
1304 | #endif | |
1305 | #if defined (SIGCONT) | |
1306 | if (hostsig == SIGCONT) return TARGET_SIGNAL_CONT; | |
1307 | #endif | |
1308 | #if defined (SIGTTIN) | |
1309 | if (hostsig == SIGTTIN) return TARGET_SIGNAL_TTIN; | |
1310 | #endif | |
1311 | #if defined (SIGTTOU) | |
1312 | if (hostsig == SIGTTOU) return TARGET_SIGNAL_TTOU; | |
1313 | #endif | |
1314 | #if defined (SIGVTALRM) | |
1315 | if (hostsig == SIGVTALRM) return TARGET_SIGNAL_VTALRM; | |
1316 | #endif | |
1317 | #if defined (SIGPROF) | |
1318 | if (hostsig == SIGPROF) return TARGET_SIGNAL_PROF; | |
1319 | #endif | |
1320 | #if defined (SIGXCPU) | |
1321 | if (hostsig == SIGXCPU) return TARGET_SIGNAL_XCPU; | |
1322 | #endif | |
1323 | #if defined (SIGXFSZ) | |
1324 | if (hostsig == SIGXFSZ) return TARGET_SIGNAL_XFSZ; | |
1325 | #endif | |
1326 | #if defined (SIGWIND) | |
1327 | if (hostsig == SIGWIND) return TARGET_SIGNAL_WIND; | |
1328 | #endif | |
1329 | #if defined (SIGPHONE) | |
1330 | if (hostsig == SIGPHONE) return TARGET_SIGNAL_PHONE; | |
1331 | #endif | |
1332 | #if defined (SIGLOST) | |
1333 | if (hostsig == SIGLOST) return TARGET_SIGNAL_LOST; | |
1334 | #endif | |
1335 | #if defined (SIGWAITING) | |
1336 | if (hostsig == SIGWAITING) return TARGET_SIGNAL_WAITING; | |
1337 | #endif | |
1338 | #if defined (SIGLWP) | |
1339 | if (hostsig == SIGLWP) return TARGET_SIGNAL_LWP; | |
1340 | #endif | |
1341 | #if defined (SIGDANGER) | |
1342 | if (hostsig == SIGDANGER) return TARGET_SIGNAL_DANGER; | |
1343 | #endif | |
1344 | #if defined (SIGGRANT) | |
1345 | if (hostsig == SIGGRANT) return TARGET_SIGNAL_GRANT; | |
1346 | #endif | |
1347 | #if defined (SIGRETRACT) | |
1348 | if (hostsig == SIGRETRACT) return TARGET_SIGNAL_RETRACT; | |
1349 | #endif | |
1350 | #if defined (SIGMSG) | |
1351 | if (hostsig == SIGMSG) return TARGET_SIGNAL_MSG; | |
1352 | #endif | |
1353 | #if defined (SIGSOUND) | |
1354 | if (hostsig == SIGSOUND) return TARGET_SIGNAL_SOUND; | |
1355 | #endif | |
1356 | #if defined (SIGSAK) | |
1357 | if (hostsig == SIGSAK) return TARGET_SIGNAL_SAK; | |
43fc25c8 JL |
1358 | #endif |
1359 | #if defined (SIGPRIO) | |
1360 | if (hostsig == SIGPRIO) return TARGET_SIGNAL_PRIO; | |
1361 | #endif | |
647e52ea SG |
1362 | |
1363 | /* Mach exceptions. Assumes that the values for EXC_ are positive! */ | |
1364 | #if defined (EXC_BAD_ACCESS) && defined (_NSIG) | |
1365 | if (hostsig == _NSIG + EXC_BAD_ACCESS) return TARGET_EXC_BAD_ACCESS; | |
1366 | #endif | |
1367 | #if defined (EXC_BAD_INSTRUCTION) && defined (_NSIG) | |
1368 | if (hostsig == _NSIG + EXC_BAD_INSTRUCTION) return TARGET_EXC_BAD_INSTRUCTION; | |
1369 | #endif | |
1370 | #if defined (EXC_ARITHMETIC) && defined (_NSIG) | |
1371 | if (hostsig == _NSIG + EXC_ARITHMETIC) return TARGET_EXC_ARITHMETIC; | |
1372 | #endif | |
1373 | #if defined (EXC_EMULATION) && defined (_NSIG) | |
1374 | if (hostsig == _NSIG + EXC_EMULATION) return TARGET_EXC_EMULATION; | |
1375 | #endif | |
1376 | #if defined (EXC_SOFTWARE) && defined (_NSIG) | |
1377 | if (hostsig == _NSIG + EXC_SOFTWARE) return TARGET_EXC_SOFTWARE; | |
1378 | #endif | |
1379 | #if defined (EXC_BREAKPOINT) && defined (_NSIG) | |
1380 | if (hostsig == _NSIG + EXC_BREAKPOINT) return TARGET_EXC_BREAKPOINT; | |
1381 | #endif | |
1382 | ||
43fc25c8 JL |
1383 | #if defined (REALTIME_LO) |
1384 | if (hostsig >= REALTIME_LO && hostsig < REALTIME_HI) | |
1385 | return (enum target_signal) | |
1386 | (hostsig - 33 + (int) TARGET_SIGNAL_REALTIME_33); | |
4ad0021e JK |
1387 | #endif |
1388 | return TARGET_SIGNAL_UNKNOWN; | |
1389 | } | |
1390 | ||
1391 | int | |
1392 | target_signal_to_host (oursig) | |
1393 | enum target_signal oursig; | |
1394 | { | |
1395 | switch (oursig) | |
1396 | { | |
1397 | case TARGET_SIGNAL_0: return 0; | |
1398 | ||
1399 | #if defined (SIGHUP) | |
1400 | case TARGET_SIGNAL_HUP: return SIGHUP; | |
1401 | #endif | |
1402 | #if defined (SIGINT) | |
1403 | case TARGET_SIGNAL_INT: return SIGINT; | |
1404 | #endif | |
1405 | #if defined (SIGQUIT) | |
1406 | case TARGET_SIGNAL_QUIT: return SIGQUIT; | |
1407 | #endif | |
1408 | #if defined (SIGILL) | |
1409 | case TARGET_SIGNAL_ILL: return SIGILL; | |
1410 | #endif | |
1411 | #if defined (SIGTRAP) | |
1412 | case TARGET_SIGNAL_TRAP: return SIGTRAP; | |
1413 | #endif | |
1414 | #if defined (SIGABRT) | |
1415 | case TARGET_SIGNAL_ABRT: return SIGABRT; | |
1416 | #endif | |
1417 | #if defined (SIGEMT) | |
1418 | case TARGET_SIGNAL_EMT: return SIGEMT; | |
1419 | #endif | |
1420 | #if defined (SIGFPE) | |
1421 | case TARGET_SIGNAL_FPE: return SIGFPE; | |
1422 | #endif | |
1423 | #if defined (SIGKILL) | |
1424 | case TARGET_SIGNAL_KILL: return SIGKILL; | |
1425 | #endif | |
1426 | #if defined (SIGBUS) | |
1427 | case TARGET_SIGNAL_BUS: return SIGBUS; | |
1428 | #endif | |
1429 | #if defined (SIGSEGV) | |
1430 | case TARGET_SIGNAL_SEGV: return SIGSEGV; | |
1431 | #endif | |
1432 | #if defined (SIGSYS) | |
1433 | case TARGET_SIGNAL_SYS: return SIGSYS; | |
1434 | #endif | |
1435 | #if defined (SIGPIPE) | |
1436 | case TARGET_SIGNAL_PIPE: return SIGPIPE; | |
1437 | #endif | |
1438 | #if defined (SIGALRM) | |
1439 | case TARGET_SIGNAL_ALRM: return SIGALRM; | |
1440 | #endif | |
1441 | #if defined (SIGTERM) | |
1442 | case TARGET_SIGNAL_TERM: return SIGTERM; | |
1443 | #endif | |
1444 | #if defined (SIGUSR1) | |
1445 | case TARGET_SIGNAL_USR1: return SIGUSR1; | |
1446 | #endif | |
1447 | #if defined (SIGUSR2) | |
1448 | case TARGET_SIGNAL_USR2: return SIGUSR2; | |
1449 | #endif | |
1450 | #if defined (SIGCHLD) || defined (SIGCLD) | |
1451 | case TARGET_SIGNAL_CHLD: | |
1452 | #if defined (SIGCHLD) | |
1453 | return SIGCHLD; | |
1454 | #else | |
1455 | return SIGCLD; | |
1456 | #endif | |
1457 | #endif /* SIGCLD or SIGCHLD */ | |
1458 | #if defined (SIGPWR) | |
1459 | case TARGET_SIGNAL_PWR: return SIGPWR; | |
1460 | #endif | |
1461 | #if defined (SIGWINCH) | |
1462 | case TARGET_SIGNAL_WINCH: return SIGWINCH; | |
1463 | #endif | |
1464 | #if defined (SIGURG) | |
1465 | case TARGET_SIGNAL_URG: return SIGURG; | |
1466 | #endif | |
1467 | #if defined (SIGIO) | |
1468 | case TARGET_SIGNAL_IO: return SIGIO; | |
1469 | #endif | |
1470 | #if defined (SIGPOLL) | |
1471 | case TARGET_SIGNAL_POLL: return SIGPOLL; | |
1472 | #endif | |
1473 | #if defined (SIGSTOP) | |
1474 | case TARGET_SIGNAL_STOP: return SIGSTOP; | |
1475 | #endif | |
1476 | #if defined (SIGTSTP) | |
1477 | case TARGET_SIGNAL_TSTP: return SIGTSTP; | |
1478 | #endif | |
1479 | #if defined (SIGCONT) | |
1480 | case TARGET_SIGNAL_CONT: return SIGCONT; | |
1481 | #endif | |
1482 | #if defined (SIGTTIN) | |
1483 | case TARGET_SIGNAL_TTIN: return SIGTTIN; | |
1484 | #endif | |
1485 | #if defined (SIGTTOU) | |
1486 | case TARGET_SIGNAL_TTOU: return SIGTTOU; | |
1487 | #endif | |
1488 | #if defined (SIGVTALRM) | |
1489 | case TARGET_SIGNAL_VTALRM: return SIGVTALRM; | |
1490 | #endif | |
1491 | #if defined (SIGPROF) | |
1492 | case TARGET_SIGNAL_PROF: return SIGPROF; | |
1493 | #endif | |
1494 | #if defined (SIGXCPU) | |
1495 | case TARGET_SIGNAL_XCPU: return SIGXCPU; | |
1496 | #endif | |
1497 | #if defined (SIGXFSZ) | |
1498 | case TARGET_SIGNAL_XFSZ: return SIGXFSZ; | |
1499 | #endif | |
1500 | #if defined (SIGWIND) | |
1501 | case TARGET_SIGNAL_WIND: return SIGWIND; | |
1502 | #endif | |
1503 | #if defined (SIGPHONE) | |
1504 | case TARGET_SIGNAL_PHONE: return SIGPHONE; | |
1505 | #endif | |
1506 | #if defined (SIGLOST) | |
1507 | case TARGET_SIGNAL_LOST: return SIGLOST; | |
1508 | #endif | |
1509 | #if defined (SIGWAITING) | |
1510 | case TARGET_SIGNAL_WAITING: return SIGWAITING; | |
1511 | #endif | |
1512 | #if defined (SIGLWP) | |
1513 | case TARGET_SIGNAL_LWP: return SIGLWP; | |
1514 | #endif | |
1515 | #if defined (SIGDANGER) | |
1516 | case TARGET_SIGNAL_DANGER: return SIGDANGER; | |
1517 | #endif | |
1518 | #if defined (SIGGRANT) | |
1519 | case TARGET_SIGNAL_GRANT: return SIGGRANT; | |
1520 | #endif | |
1521 | #if defined (SIGRETRACT) | |
1522 | case TARGET_SIGNAL_RETRACT: return SIGRETRACT; | |
1523 | #endif | |
1524 | #if defined (SIGMSG) | |
1525 | case TARGET_SIGNAL_MSG: return SIGMSG; | |
1526 | #endif | |
1527 | #if defined (SIGSOUND) | |
1528 | case TARGET_SIGNAL_SOUND: return SIGSOUND; | |
1529 | #endif | |
1530 | #if defined (SIGSAK) | |
1531 | case TARGET_SIGNAL_SAK: return SIGSAK; | |
43fc25c8 JL |
1532 | #endif |
1533 | #if defined (SIGPRIO) | |
1534 | case TARGET_SIGNAL_PRIO: return SIGPRIO; | |
4ad0021e | 1535 | #endif |
647e52ea SG |
1536 | |
1537 | /* Mach exceptions. Assumes that the values for EXC_ are positive! */ | |
1538 | #if defined (EXC_BAD_ACCESS) && defined (_NSIG) | |
1539 | case TARGET_EXC_BAD_ACCESS: return _NSIG + EXC_BAD_ACCESS; | |
1540 | #endif | |
1541 | #if defined (EXC_BAD_INSTRUCTION) && defined (_NSIG) | |
1542 | case TARGET_EXC_BAD_INSTRUCTION: return _NSIG + EXC_BAD_INSTRUCTION; | |
1543 | #endif | |
1544 | #if defined (EXC_ARITHMETIC) && defined (_NSIG) | |
1545 | case TARGET_EXC_ARITHMETIC: return _NSIG + EXC_ARITHMETIC; | |
1546 | #endif | |
1547 | #if defined (EXC_EMULATION) && defined (_NSIG) | |
1548 | case TARGET_EXC_EMULATION: return _NSIG + EXC_EMULATION; | |
1549 | #endif | |
1550 | #if defined (EXC_SOFTWARE) && defined (_NSIG) | |
1551 | case TARGET_EXC_SOFTWARE: return _NSIG + EXC_SOFTWARE; | |
1552 | #endif | |
1553 | #if defined (EXC_BREAKPOINT) && defined (_NSIG) | |
1554 | case TARGET_EXC_BREAKPOINT: return _NSIG + EXC_BREAKPOINT; | |
1555 | #endif | |
1556 | ||
4ad0021e | 1557 | default: |
43fc25c8 JL |
1558 | #if defined (REALTIME_LO) |
1559 | if (oursig >= TARGET_SIGNAL_REALTIME_33 | |
1560 | && oursig <= TARGET_SIGNAL_REALTIME_63) | |
1561 | { | |
1562 | int retsig = | |
1563 | (int)oursig - (int)TARGET_SIGNAL_REALTIME_33 + REALTIME_LO; | |
1564 | if (retsig < REALTIME_HI) | |
1565 | return retsig; | |
1566 | } | |
1567 | #endif | |
4ad0021e JK |
1568 | /* The user might be trying to do "signal SIGSAK" where this system |
1569 | doesn't have SIGSAK. */ | |
1570 | warning ("Signal %s does not exist on this system.\n", | |
1571 | target_signal_to_name (oursig)); | |
1572 | return 0; | |
1573 | } | |
1574 | } | |
1575 | ||
1576 | /* Helper function for child_wait and the Lynx derivatives of child_wait. | |
1577 | HOSTSTATUS is the waitstatus from wait() or the equivalent; store our | |
1578 | translation of that in OURSTATUS. */ | |
1579 | void | |
1580 | store_waitstatus (ourstatus, hoststatus) | |
1581 | struct target_waitstatus *ourstatus; | |
1582 | int hoststatus; | |
1583 | { | |
1584 | #ifdef CHILD_SPECIAL_WAITSTATUS | |
1585 | /* CHILD_SPECIAL_WAITSTATUS should return nonzero and set *OURSTATUS | |
1586 | if it wants to deal with hoststatus. */ | |
1587 | if (CHILD_SPECIAL_WAITSTATUS (ourstatus, hoststatus)) | |
1588 | return; | |
1589 | #endif | |
1590 | ||
1591 | if (WIFEXITED (hoststatus)) | |
1592 | { | |
1593 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1594 | ourstatus->value.integer = WEXITSTATUS (hoststatus); | |
1595 | } | |
1596 | else if (!WIFSTOPPED (hoststatus)) | |
1597 | { | |
1598 | ourstatus->kind = TARGET_WAITKIND_SIGNALLED; | |
1599 | ourstatus->value.sig = target_signal_from_host (WTERMSIG (hoststatus)); | |
1600 | } | |
1601 | else | |
1602 | { | |
1603 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
1604 | ourstatus->value.sig = target_signal_from_host (WSTOPSIG (hoststatus)); | |
1605 | } | |
1606 | } | |
43fc25c8 JL |
1607 | \f |
1608 | /* In some circumstances we allow a command to specify a numeric | |
1609 | signal. The idea is to keep these circumstances limited so that | |
1610 | users (and scripts) develop portable habits. For comparison, | |
1611 | POSIX.2 `kill' requires that 1,2,3,6,9,14, and 15 work (and using a | |
1612 | numeric signal at all is obscelescent. We are slightly more | |
1613 | lenient and allow 1-15 which should match host signal numbers on | |
1614 | most systems. Use of symbolic signal names is strongly encouraged. */ | |
4ad0021e | 1615 | |
43fc25c8 JL |
1616 | enum target_signal |
1617 | target_signal_from_command (num) | |
1618 | int num; | |
1619 | { | |
1620 | if (num >= 1 && num <= 15) | |
1621 | return (enum target_signal)num; | |
1622 | error ("Only signals 1-15 are valid as numeric signals.\n\ | |
1623 | Use \"info signals\" for a list of symbolic signals."); | |
1624 | } | |
cad1498f SG |
1625 | \f |
1626 | /* Returns zero to leave the inferior alone, one to interrupt it. */ | |
1627 | int (*target_activity_function) PARAMS ((void)); | |
1628 | int target_activity_fd; | |
67ac9759 | 1629 | \f |
49781499 JK |
1630 | /* Convert a normal process ID to a string. Returns the string in a static |
1631 | buffer. */ | |
1632 | ||
1633 | char * | |
1634 | normal_pid_to_str (pid) | |
1635 | int pid; | |
1636 | { | |
1637 | static char buf[30]; | |
1638 | ||
43fc25c8 JL |
1639 | if (STREQ (current_target.to_shortname, "remote")) |
1640 | sprintf (buf, "thread %d", pid); | |
1641 | else | |
1642 | sprintf (buf, "process %d", pid); | |
49781499 JK |
1643 | |
1644 | return buf; | |
1645 | } | |
67ac9759 | 1646 | \f |
43fc25c8 JL |
1647 | #ifdef MAINTENANCE_CMDS |
1648 | static struct target_ops debug_target; | |
1649 | ||
1650 | static void | |
1651 | debug_to_open (args, from_tty) | |
1652 | char *args; | |
1653 | int from_tty; | |
1654 | { | |
1655 | debug_target.to_open (args, from_tty); | |
1656 | ||
1657 | fprintf_unfiltered (stderr, "target_open (%s, %d)\n", args, from_tty); | |
1658 | } | |
1659 | ||
1660 | static void | |
1661 | debug_to_close (quitting) | |
1662 | int quitting; | |
1663 | { | |
1664 | debug_target.to_close (quitting); | |
1665 | ||
1666 | fprintf_unfiltered (stderr, "target_close (%d)\n", quitting); | |
1667 | } | |
1668 | ||
1669 | static void | |
1670 | debug_to_attach (args, from_tty) | |
1671 | char *args; | |
1672 | int from_tty; | |
1673 | { | |
1674 | debug_target.to_attach (args, from_tty); | |
1675 | ||
1676 | fprintf_unfiltered (stderr, "target_attach (%s, %d)\n", args, from_tty); | |
1677 | } | |
1678 | ||
1679 | static void | |
1680 | debug_to_detach (args, from_tty) | |
1681 | char *args; | |
1682 | int from_tty; | |
1683 | { | |
1684 | debug_target.to_detach (args, from_tty); | |
1685 | ||
1686 | fprintf_unfiltered (stderr, "target_detach (%s, %d)\n", args, from_tty); | |
1687 | } | |
1688 | ||
1689 | static void | |
1690 | debug_to_resume (pid, step, siggnal) | |
1691 | int pid; | |
1692 | int step; | |
1693 | enum target_signal siggnal; | |
1694 | { | |
1695 | debug_target.to_resume (pid, step, siggnal); | |
1696 | ||
1697 | fprintf_unfiltered (stderr, "target_resume (%d, %s, %s)\n", pid, | |
1698 | step ? "step" : "continue", | |
1699 | target_signal_to_name (siggnal)); | |
1700 | } | |
1701 | ||
1702 | static int | |
1703 | debug_to_wait (pid, status) | |
1704 | int pid; | |
1705 | struct target_waitstatus *status; | |
1706 | { | |
1707 | int retval; | |
1708 | ||
1709 | retval = debug_target.to_wait (pid, status); | |
1710 | ||
1711 | fprintf_unfiltered (stderr, "target_wait (%d, status) = %d, ", pid, retval); | |
1712 | fprintf_unfiltered (stderr, "status->kind = "); | |
1713 | switch (status->kind) | |
1714 | { | |
1715 | case TARGET_WAITKIND_EXITED: | |
1716 | fprintf_unfiltered (stderr, "exited, status = %d\n", status->value.integer); | |
1717 | break; | |
1718 | case TARGET_WAITKIND_STOPPED: | |
1719 | fprintf_unfiltered (stderr, "stopped, signal = %s\n", | |
1720 | target_signal_to_name (status->value.sig)); | |
1721 | break; | |
1722 | case TARGET_WAITKIND_SIGNALLED: | |
1723 | fprintf_unfiltered (stderr, "signalled, signal = %s\n", | |
1724 | target_signal_to_name (status->value.sig)); | |
1725 | break; | |
1726 | case TARGET_WAITKIND_LOADED: | |
1727 | fprintf_unfiltered (stderr, "loaded\n"); | |
1728 | break; | |
1729 | case TARGET_WAITKIND_SPURIOUS: | |
1730 | fprintf_unfiltered (stderr, "spurious\n"); | |
1731 | break; | |
1732 | default: | |
1733 | fprintf_unfiltered (stderr, "unknown???\n"); | |
1734 | break; | |
1735 | } | |
1736 | ||
1737 | return retval; | |
1738 | } | |
1739 | ||
1740 | static void | |
1741 | debug_to_fetch_registers (regno) | |
1742 | int regno; | |
1743 | { | |
1744 | debug_target.to_fetch_registers (regno); | |
1745 | ||
1746 | fprintf_unfiltered (stderr, "target_fetch_registers (%s)", | |
1747 | regno != -1 ? reg_names[regno] : "-1"); | |
1748 | if (regno != -1) | |
47b8a5ce PS |
1749 | fprintf_unfiltered (stderr, " = 0x%x %d", |
1750 | (unsigned long) read_register (regno), | |
43fc25c8 JL |
1751 | read_register (regno)); |
1752 | fprintf_unfiltered (stderr, "\n"); | |
1753 | } | |
1754 | ||
1755 | static void | |
1756 | debug_to_store_registers (regno) | |
1757 | int regno; | |
1758 | { | |
1759 | debug_target.to_store_registers (regno); | |
1760 | ||
1761 | if (regno >= 0 && regno < NUM_REGS) | |
1762 | fprintf_unfiltered (stderr, "target_store_registers (%s) = 0x%x %d\n", | |
47b8a5ce PS |
1763 | reg_names[regno], |
1764 | (unsigned long) read_register (regno), | |
1765 | (unsigned long) read_register (regno)); | |
43fc25c8 JL |
1766 | else |
1767 | fprintf_unfiltered (stderr, "target_store_registers (%d)\n", regno); | |
1768 | } | |
1769 | ||
1770 | static void | |
1771 | debug_to_prepare_to_store () | |
1772 | { | |
1773 | debug_target.to_prepare_to_store (); | |
1774 | ||
1775 | fprintf_unfiltered (stderr, "target_prepare_to_store ()\n"); | |
1776 | } | |
1777 | ||
1778 | static int | |
1779 | debug_to_xfer_memory (memaddr, myaddr, len, write, target) | |
1780 | CORE_ADDR memaddr; | |
1781 | char *myaddr; | |
1782 | int len; | |
1783 | int write; | |
1784 | struct target_ops *target; | |
1785 | { | |
1786 | int retval; | |
1787 | ||
1788 | retval = debug_target.to_xfer_memory (memaddr, myaddr, len, write, target); | |
1789 | ||
647e52ea SG |
1790 | fprintf_unfiltered (stderr, |
1791 | "target_xfer_memory (0x%x, xxx, %d, %s, xxx) = %d", | |
47b8a5ce PS |
1792 | (unsigned int) memaddr, /* possable truncate long long */ |
1793 | len, write ? "write" : "read", retval); | |
1794 | ||
1795 | ||
43fc25c8 JL |
1796 | |
1797 | if (retval > 0) | |
1798 | { | |
1799 | int i; | |
1800 | ||
1801 | fputs_unfiltered (", bytes =", gdb_stderr); | |
1802 | for (i = 0; i < retval; i++) | |
647e52ea SG |
1803 | { |
1804 | if ((((long) &(myaddr[i])) & 0xf) == 0) | |
1805 | fprintf_unfiltered (stderr, "\n"); | |
1806 | fprintf_unfiltered (stderr, " %02x", myaddr[i] & 0xff); | |
1807 | } | |
43fc25c8 JL |
1808 | } |
1809 | ||
1810 | fputc_unfiltered ('\n', gdb_stderr); | |
1811 | ||
1812 | return retval; | |
1813 | } | |
1814 | ||
1815 | static void | |
1816 | debug_to_files_info (target) | |
1817 | struct target_ops *target; | |
1818 | { | |
1819 | debug_target.to_files_info (target); | |
1820 | ||
1821 | fprintf_unfiltered (stderr, "target_files_info (xxx)\n"); | |
1822 | } | |
1823 | ||
1824 | static int | |
1825 | debug_to_insert_breakpoint (addr, save) | |
1826 | CORE_ADDR addr; | |
1827 | char *save; | |
1828 | { | |
1829 | int retval; | |
1830 | ||
1831 | retval = debug_target.to_insert_breakpoint (addr, save); | |
1832 | ||
1833 | fprintf_unfiltered (stderr, "target_insert_breakpoint (0x%x, xxx) = %d\n", | |
47b8a5ce | 1834 | (unsigned long) addr, retval); |
43fc25c8 JL |
1835 | return retval; |
1836 | } | |
1837 | ||
1838 | static int | |
1839 | debug_to_remove_breakpoint (addr, save) | |
1840 | CORE_ADDR addr; | |
1841 | char *save; | |
1842 | { | |
1843 | int retval; | |
1844 | ||
1845 | retval = debug_target.to_remove_breakpoint (addr, save); | |
1846 | ||
1847 | fprintf_unfiltered (stderr, "target_remove_breakpoint (0x%x, xxx) = %d\n", | |
47b8a5ce | 1848 | (unsigned long)addr, retval); |
43fc25c8 JL |
1849 | return retval; |
1850 | } | |
1851 | ||
1852 | static void | |
1853 | debug_to_terminal_init () | |
1854 | { | |
1855 | debug_target.to_terminal_init (); | |
1856 | ||
1857 | fprintf_unfiltered (stderr, "target_terminal_init ()\n"); | |
1858 | } | |
1859 | ||
1860 | static void | |
1861 | debug_to_terminal_inferior () | |
1862 | { | |
1863 | debug_target.to_terminal_inferior (); | |
1864 | ||
1865 | fprintf_unfiltered (stderr, "target_terminal_inferior ()\n"); | |
1866 | } | |
1867 | ||
1868 | static void | |
1869 | debug_to_terminal_ours_for_output () | |
1870 | { | |
1871 | debug_target.to_terminal_ours_for_output (); | |
1872 | ||
1873 | fprintf_unfiltered (stderr, "target_terminal_ours_for_output ()\n"); | |
1874 | } | |
1875 | ||
1876 | static void | |
1877 | debug_to_terminal_ours () | |
1878 | { | |
1879 | debug_target.to_terminal_ours (); | |
1880 | ||
1881 | fprintf_unfiltered (stderr, "target_terminal_ours ()\n"); | |
1882 | } | |
1883 | ||
1884 | static void | |
1885 | debug_to_terminal_info (arg, from_tty) | |
1886 | char *arg; | |
1887 | int from_tty; | |
1888 | { | |
1889 | debug_target.to_terminal_info (arg, from_tty); | |
1890 | ||
1891 | fprintf_unfiltered (stderr, "target_terminal_info (%s, %d)\n", arg, | |
1892 | from_tty); | |
1893 | } | |
1894 | ||
1895 | static void | |
1896 | debug_to_kill () | |
1897 | { | |
1898 | debug_target.to_kill (); | |
1899 | ||
1900 | fprintf_unfiltered (stderr, "target_kill ()\n"); | |
1901 | } | |
1902 | ||
1903 | static void | |
1904 | debug_to_load (args, from_tty) | |
1905 | char *args; | |
1906 | int from_tty; | |
1907 | { | |
1908 | debug_target.to_load (args, from_tty); | |
1909 | ||
1910 | fprintf_unfiltered (stderr, "target_load (%s, %d)\n", args, from_tty); | |
1911 | } | |
1912 | ||
1913 | static int | |
1914 | debug_to_lookup_symbol (name, addrp) | |
1915 | char *name; | |
1916 | CORE_ADDR *addrp; | |
1917 | { | |
1918 | int retval; | |
1919 | ||
1920 | retval = debug_target.to_lookup_symbol (name, addrp); | |
1921 | ||
1922 | fprintf_unfiltered (stderr, "target_lookup_symbol (%s, xxx)\n", name); | |
1923 | ||
1924 | return retval; | |
1925 | } | |
1926 | ||
1927 | static void | |
1928 | debug_to_create_inferior (exec_file, args, env) | |
1929 | char *exec_file; | |
1930 | char *args; | |
1931 | char **env; | |
1932 | { | |
1933 | debug_target.to_create_inferior (exec_file, args, env); | |
1934 | ||
1935 | fprintf_unfiltered (stderr, "target_create_inferior (%s, %s, xxx)\n", | |
1936 | exec_file, args); | |
1937 | } | |
1938 | ||
1939 | static void | |
1940 | debug_to_mourn_inferior () | |
1941 | { | |
1942 | debug_target.to_mourn_inferior (); | |
1943 | ||
1944 | fprintf_unfiltered (stderr, "target_mourn_inferior ()\n"); | |
1945 | } | |
1946 | ||
1947 | static int | |
1948 | debug_to_can_run () | |
1949 | { | |
1950 | int retval; | |
1951 | ||
1952 | retval = debug_target.to_can_run (); | |
1953 | ||
1954 | fprintf_unfiltered (stderr, "target_can_run () = %d\n", retval); | |
1955 | ||
1956 | return retval; | |
1957 | } | |
1958 | ||
1959 | static void | |
1960 | debug_to_notice_signals (pid) | |
1961 | int pid; | |
1962 | { | |
1963 | debug_target.to_notice_signals (pid); | |
1964 | ||
1965 | fprintf_unfiltered (stderr, "target_notice_signals (%d)\n", pid); | |
1966 | } | |
1967 | ||
2b576293 | 1968 | static int |
43fc25c8 JL |
1969 | debug_to_thread_alive (pid) |
1970 | int pid; | |
1971 | { | |
647e52ea SG |
1972 | int retval; |
1973 | ||
1974 | retval = debug_target.to_thread_alive (pid); | |
43fc25c8 | 1975 | |
647e52ea SG |
1976 | fprintf_unfiltered (stderr, "target_thread_alive (%d) = %d\n", pid, retval); |
1977 | ||
1978 | return retval; | |
43fc25c8 JL |
1979 | } |
1980 | ||
1981 | static void | |
1982 | debug_to_stop () | |
1983 | { | |
1984 | debug_target.to_stop (); | |
1985 | ||
1986 | fprintf_unfiltered (stderr, "target_stop ()\n"); | |
1987 | } | |
1988 | ||
1989 | static void | |
1990 | setup_target_debug () | |
1991 | { | |
1992 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
1993 | ||
1994 | current_target.to_open = debug_to_open; | |
1995 | current_target.to_close = debug_to_close; | |
1996 | current_target.to_attach = debug_to_attach; | |
1997 | current_target.to_detach = debug_to_detach; | |
1998 | current_target.to_resume = debug_to_resume; | |
1999 | current_target.to_wait = debug_to_wait; | |
2000 | current_target.to_fetch_registers = debug_to_fetch_registers; | |
2001 | current_target.to_store_registers = debug_to_store_registers; | |
2002 | current_target.to_prepare_to_store = debug_to_prepare_to_store; | |
2003 | current_target.to_xfer_memory = debug_to_xfer_memory; | |
2004 | current_target.to_files_info = debug_to_files_info; | |
2005 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
2006 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
2007 | current_target.to_terminal_init = debug_to_terminal_init; | |
2008 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
2009 | current_target.to_terminal_ours_for_output = debug_to_terminal_ours_for_output; | |
2010 | current_target.to_terminal_ours = debug_to_terminal_ours; | |
2011 | current_target.to_terminal_info = debug_to_terminal_info; | |
2012 | current_target.to_kill = debug_to_kill; | |
2013 | current_target.to_load = debug_to_load; | |
2014 | current_target.to_lookup_symbol = debug_to_lookup_symbol; | |
2015 | current_target.to_create_inferior = debug_to_create_inferior; | |
2016 | current_target.to_mourn_inferior = debug_to_mourn_inferior; | |
2017 | current_target.to_can_run = debug_to_can_run; | |
2018 | current_target.to_notice_signals = debug_to_notice_signals; | |
2019 | current_target.to_thread_alive = debug_to_thread_alive; | |
2020 | current_target.to_stop = debug_to_stop; | |
2021 | } | |
2022 | #endif /* MAINTENANCE_CMDS */ | |
2023 | \f | |
bd5635a1 RP |
2024 | static char targ_desc[] = |
2025 | "Names of targets and files being debugged.\n\ | |
2026 | Shows the entire stack of targets currently in use (including the exec-file,\n\ | |
2027 | core-file, and process, if any), as well as the symbol file name."; | |
2028 | ||
2029 | void | |
4fc5969d | 2030 | initialize_targets () |
bd5635a1 | 2031 | { |
cad1498f | 2032 | push_target (&dummy_target); |
bd5635a1 | 2033 | |
bd5635a1 RP |
2034 | add_info ("target", target_info, targ_desc); |
2035 | add_info ("files", target_info, targ_desc); | |
67ac9759 | 2036 | |
43fc25c8 JL |
2037 | #ifdef MAINTENANCE_CMDS |
2038 | add_show_from_set ( | |
2039 | add_set_cmd ("targetdebug", class_maintenance, var_zinteger, | |
2040 | (char *)&targetdebug, | |
2041 | "Set target debugging.\n\ | |
2042 | When non-zero, target debugging is enabled.", &setlist), | |
2043 | &showlist); | |
2044 | #endif | |
2045 | ||
67ac9759 JK |
2046 | if (!STREQ (signals[TARGET_SIGNAL_LAST].string, "TARGET_SIGNAL_MAGIC")) |
2047 | abort (); | |
bd5635a1 | 2048 | } |