Commit | Line | Data |
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bd5635a1 | 1 | /* Select target systems and architectures at runtime for GDB. |
4ad0021e | 2 | Copyright 1990, 1992, 1993, 1994 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 JG |
18 | along with this program; if not, write to the Free Software |
19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
bd5635a1 | 20 | |
80d68b1d | 21 | #include "defs.h" |
bd5635a1 RP |
22 | #include <errno.h> |
23 | #include <ctype.h> | |
bd5635a1 RP |
24 | #include "target.h" |
25 | #include "gdbcmd.h" | |
26 | #include "symtab.h" | |
27 | #include "inferior.h" | |
28 | #include "bfd.h" | |
29 | #include "symfile.h" | |
51b57ded | 30 | #include "objfiles.h" |
4ad0021e JK |
31 | #include "wait.h" |
32 | #include <signal.h> | |
bd5635a1 | 33 | |
e17960fb JG |
34 | extern int errno; |
35 | ||
7919c3ed JG |
36 | static void |
37 | target_info PARAMS ((char *, int)); | |
38 | ||
39 | static void | |
40 | cleanup_target PARAMS ((struct target_ops *)); | |
41 | ||
42 | static void | |
43 | maybe_kill_then_create_inferior PARAMS ((char *, char *, char **)); | |
44 | ||
45 | static void | |
46 | maybe_kill_then_attach PARAMS ((char *, int)); | |
47 | ||
48 | static void | |
49 | kill_or_be_killed PARAMS ((int)); | |
50 | ||
51 | static void | |
52 | default_terminal_info PARAMS ((char *, int)); | |
53 | ||
54 | static int | |
55 | nosymbol PARAMS ((char *, CORE_ADDR *)); | |
56 | ||
7919c3ed JG |
57 | static void |
58 | tcomplain PARAMS ((void)); | |
59 | ||
60 | static int | |
61 | nomemory PARAMS ((CORE_ADDR, char *, int, int)); | |
62 | ||
597dc86b SG |
63 | static int |
64 | return_zero PARAMS ((void)); | |
65 | ||
7919c3ed JG |
66 | static void |
67 | ignore PARAMS ((void)); | |
597dc86b | 68 | |
7919c3ed JG |
69 | static void |
70 | target_command PARAMS ((char *, int)); | |
bd5635a1 | 71 | |
597dc86b SG |
72 | static struct target_ops * |
73 | find_default_run_target PARAMS ((char *)); | |
74 | ||
bd5635a1 RP |
75 | /* Pointer to array of target architecture structures; the size of the |
76 | array; the current index into the array; the allocated size of the | |
77 | array. */ | |
78 | struct target_ops **target_structs; | |
79 | unsigned target_struct_size; | |
80 | unsigned target_struct_index; | |
81 | unsigned target_struct_allocsize; | |
82 | #define DEFAULT_ALLOCSIZE 10 | |
83 | ||
84 | /* The initial current target, so that there is always a semi-valid | |
85 | current target. */ | |
86 | ||
f2fc6e7a | 87 | struct target_ops dummy_target = {"None", "None", "", |
597dc86b SG |
88 | 0, 0, /* open, close */ |
89 | find_default_attach, 0, /* attach, detach */ | |
bd5635a1 | 90 | 0, 0, /* resume, wait */ |
dcc8abce | 91 | 0, 0, 0, /* registers */ |
bd5635a1 RP |
92 | 0, 0, /* memory */ |
93 | 0, 0, /* bkpts */ | |
94 | 0, 0, 0, 0, 0, /* terminal */ | |
fc47a10d | 95 | 0, 0, /* kill, load */ |
e17960fb | 96 | 0, /* lookup_symbol */ |
597dc86b SG |
97 | find_default_create_inferior, /* create_inferior */ |
98 | 0, /* mourn_inferior */ | |
99 | 0, /* can_run */ | |
49781499 | 100 | 0, /* notice_signals */ |
bd5635a1 RP |
101 | dummy_stratum, 0, /* stratum, next */ |
102 | 0, 0, 0, 0, 0, /* all mem, mem, stack, regs, exec */ | |
e17960fb | 103 | 0, 0, /* section pointers */ |
bd5635a1 RP |
104 | OPS_MAGIC, |
105 | }; | |
106 | ||
107 | /* The target structure we are currently using to talk to a process | |
108 | or file or whatever "inferior" we have. */ | |
109 | ||
110 | struct target_ops *current_target; | |
111 | ||
112 | /* The stack of target structures that have been pushed. */ | |
113 | ||
114 | struct target_ops **current_target_stack; | |
115 | ||
f2fc6e7a JK |
116 | /* Command list for target. */ |
117 | ||
118 | static struct cmd_list_element *targetlist = NULL; | |
119 | ||
f2fc6e7a JK |
120 | /* The user just typed 'target' without the name of a target. */ |
121 | ||
e1ce8aa5 | 122 | /* ARGSUSED */ |
f2fc6e7a JK |
123 | static void |
124 | target_command (arg, from_tty) | |
125 | char *arg; | |
126 | int from_tty; | |
127 | { | |
597dc86b | 128 | fputs_filtered ("Argument required (target name). Try `help target'\n", |
67ac9759 | 129 | gdb_stdout); |
f2fc6e7a | 130 | } |
bd5635a1 RP |
131 | |
132 | /* Add a possible target architecture to the list. */ | |
133 | ||
134 | void | |
135 | add_target (t) | |
136 | struct target_ops *t; | |
137 | { | |
138 | if (t->to_magic != OPS_MAGIC) | |
139 | { | |
67ac9759 | 140 | fprintf_unfiltered(gdb_stderr, "Magic number of %s target struct wrong\n", |
bd5635a1 RP |
141 | t->to_shortname); |
142 | abort(); | |
143 | } | |
144 | ||
145 | if (!target_structs) | |
146 | { | |
147 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
148 | target_structs = (struct target_ops **) xmalloc | |
149 | (target_struct_allocsize * sizeof (*target_structs)); | |
150 | } | |
151 | if (target_struct_size >= target_struct_allocsize) | |
152 | { | |
153 | target_struct_allocsize *= 2; | |
7919c3ed JG |
154 | target_structs = (struct target_ops **) |
155 | xrealloc ((char *) target_structs, | |
156 | target_struct_allocsize * sizeof (*target_structs)); | |
bd5635a1 RP |
157 | } |
158 | target_structs[target_struct_size++] = t; | |
159 | cleanup_target (t); | |
f2fc6e7a JK |
160 | |
161 | if (targetlist == NULL) | |
162 | add_prefix_cmd ("target", class_run, target_command, | |
163 | "Connect to a target machine or process.\n\ | |
164 | The first argument is the type or protocol of the target machine.\n\ | |
165 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
166 | information on the arguments for a particular protocol, type\n\ | |
167 | `help target ' followed by the protocol name.", | |
168 | &targetlist, "target ", 0, &cmdlist); | |
169 | add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, &targetlist); | |
bd5635a1 RP |
170 | } |
171 | ||
172 | /* Stub functions */ | |
173 | ||
174 | static void | |
175 | ignore () | |
176 | { | |
177 | } | |
178 | ||
179 | /* ARGSUSED */ | |
180 | static int | |
181 | nomemory (memaddr, myaddr, len, write) | |
182 | CORE_ADDR memaddr; | |
183 | char *myaddr; | |
184 | int len; | |
185 | int write; | |
186 | { | |
51b57ded | 187 | errno = EIO; /* Can't read/write this location */ |
bd5635a1 RP |
188 | return 0; /* No bytes handled */ |
189 | } | |
190 | ||
191 | static void | |
192 | tcomplain () | |
193 | { | |
194 | error ("You can't do that when your target is `%s'", | |
195 | current_target->to_shortname); | |
196 | } | |
197 | ||
80d68b1d | 198 | void |
bd5635a1 RP |
199 | noprocess () |
200 | { | |
201 | error ("You can't do that without a process to debug"); | |
202 | } | |
203 | ||
e1ce8aa5 | 204 | /* ARGSUSED */ |
bd5635a1 RP |
205 | static int |
206 | nosymbol (name, addrp) | |
207 | char *name; | |
208 | CORE_ADDR *addrp; | |
209 | { | |
210 | return 1; /* Symbol does not exist in target env */ | |
211 | } | |
212 | ||
e1ce8aa5 | 213 | /* ARGSUSED */ |
bd5635a1 RP |
214 | static void |
215 | default_terminal_info (args, from_tty) | |
216 | char *args; | |
217 | int from_tty; | |
218 | { | |
67ac9759 | 219 | printf_unfiltered("No saved terminal information.\n"); |
bd5635a1 RP |
220 | } |
221 | ||
222 | #if 0 | |
223 | /* With strata, this function is no longer needed. FIXME. */ | |
224 | /* This is the default target_create_inferior function. It looks up | |
225 | the stack for some target that cares to create inferiors, then | |
226 | calls it -- or complains if not found. */ | |
227 | ||
228 | static void | |
229 | upstack_create_inferior (exec, args, env) | |
230 | char *exec; | |
231 | char *args; | |
232 | char **env; | |
233 | { | |
234 | struct target_ops *t; | |
235 | ||
236 | for (t = current_target; | |
237 | t; | |
238 | t = t->to_next) | |
239 | { | |
240 | if (t->to_create_inferior != upstack_create_inferior) | |
241 | { | |
242 | t->to_create_inferior (exec, args, env); | |
243 | return; | |
244 | } | |
245 | ||
246 | } | |
247 | tcomplain(); | |
248 | } | |
249 | #endif | |
250 | ||
251 | /* This is the default target_create_inferior and target_attach function. | |
252 | If the current target is executing, it asks whether to kill it off. | |
253 | If this function returns without calling error(), it has killed off | |
254 | the target, and the operation should be attempted. */ | |
255 | ||
256 | static void | |
257 | kill_or_be_killed (from_tty) | |
258 | int from_tty; | |
259 | { | |
bd5635a1 RP |
260 | if (target_has_execution) |
261 | { | |
67ac9759 | 262 | printf_unfiltered ("You are already running a program:\n"); |
bd5635a1 RP |
263 | target_files_info (); |
264 | if (query ("Kill it? ")) { | |
e17960fb | 265 | target_kill (); |
bd5635a1 RP |
266 | if (target_has_execution) |
267 | error ("Killing the program did not help."); | |
268 | return; | |
269 | } else { | |
270 | error ("Program not killed."); | |
271 | } | |
272 | } | |
273 | tcomplain(); | |
274 | } | |
275 | ||
276 | static void | |
277 | maybe_kill_then_attach (args, from_tty) | |
278 | char *args; | |
279 | int from_tty; | |
280 | { | |
281 | kill_or_be_killed (from_tty); | |
282 | target_attach (args, from_tty); | |
283 | } | |
284 | ||
285 | static void | |
286 | maybe_kill_then_create_inferior (exec, args, env) | |
287 | char *exec; | |
288 | char *args; | |
289 | char **env; | |
290 | { | |
291 | kill_or_be_killed (0); | |
292 | target_create_inferior (exec, args, env); | |
293 | } | |
294 | ||
295 | /* Clean up a target struct so it no longer has any zero pointers in it. | |
296 | We default entries, at least to stubs that print error messages. */ | |
297 | ||
298 | static void | |
299 | cleanup_target (t) | |
300 | struct target_ops *t; | |
301 | { | |
302 | ||
303 | /* Check magic number. If wrong, it probably means someone changed | |
304 | the struct definition, but not all the places that initialize one. */ | |
305 | if (t->to_magic != OPS_MAGIC) | |
306 | { | |
67ac9759 | 307 | fprintf_unfiltered(gdb_stderr, "Magic number of %s target struct wrong\n", |
bd5635a1 RP |
308 | t->to_shortname); |
309 | abort(); | |
310 | } | |
311 | ||
312 | #define de_fault(field, value) \ | |
313 | if (!t->field) t->field = value | |
314 | ||
315 | /* FIELD DEFAULT VALUE */ | |
316 | ||
7919c3ed | 317 | de_fault (to_open, (void (*)())tcomplain); |
bd5635a1 RP |
318 | de_fault (to_close, (void (*)())ignore); |
319 | de_fault (to_attach, maybe_kill_then_attach); | |
320 | de_fault (to_detach, (void (*)())ignore); | |
321 | de_fault (to_resume, (void (*)())noprocess); | |
7919c3ed JG |
322 | de_fault (to_wait, (int (*)())noprocess); |
323 | de_fault (to_fetch_registers, (void (*)())ignore); | |
e17960fb | 324 | de_fault (to_store_registers, (void (*)())noprocess); |
bd5635a1 | 325 | de_fault (to_prepare_to_store, (void (*)())noprocess); |
7919c3ed JG |
326 | de_fault (to_xfer_memory, (int (*)())nomemory); |
327 | de_fault (to_files_info, (void (*)())ignore); | |
bd5635a1 RP |
328 | de_fault (to_insert_breakpoint, memory_insert_breakpoint); |
329 | de_fault (to_remove_breakpoint, memory_remove_breakpoint); | |
330 | de_fault (to_terminal_init, ignore); | |
331 | de_fault (to_terminal_inferior, ignore); | |
332 | de_fault (to_terminal_ours_for_output,ignore); | |
333 | de_fault (to_terminal_ours, ignore); | |
334 | de_fault (to_terminal_info, default_terminal_info); | |
335 | de_fault (to_kill, (void (*)())noprocess); | |
7919c3ed | 336 | de_fault (to_load, (void (*)())tcomplain); |
bd5635a1 RP |
337 | de_fault (to_lookup_symbol, nosymbol); |
338 | de_fault (to_create_inferior, maybe_kill_then_create_inferior); | |
339 | de_fault (to_mourn_inferior, (void (*)())noprocess); | |
597dc86b | 340 | de_fault (to_can_run, return_zero); |
49781499 | 341 | de_fault (to_notice_signals, (void (*)())ignore); |
bd5635a1 RP |
342 | de_fault (to_next, 0); |
343 | de_fault (to_has_all_memory, 0); | |
344 | de_fault (to_has_memory, 0); | |
345 | de_fault (to_has_stack, 0); | |
346 | de_fault (to_has_registers, 0); | |
347 | de_fault (to_has_execution, 0); | |
348 | ||
349 | #undef de_fault | |
350 | } | |
351 | ||
352 | /* Push a new target type into the stack of the existing target accessors, | |
353 | possibly superseding some of the existing accessors. | |
354 | ||
355 | Result is zero if the pushed target ended up on top of the stack, | |
356 | nonzero if at least one target is on top of it. | |
357 | ||
358 | Rather than allow an empty stack, we always have the dummy target at | |
359 | the bottom stratum, so we can call the function vectors without | |
360 | checking them. */ | |
361 | ||
362 | int | |
363 | push_target (t) | |
364 | struct target_ops *t; | |
365 | { | |
366 | struct target_ops *st, *prev; | |
367 | ||
368 | for (prev = 0, st = current_target; | |
369 | st; | |
370 | prev = st, st = st->to_next) { | |
371 | if ((int)(t->to_stratum) >= (int)(st->to_stratum)) | |
372 | break; | |
373 | } | |
374 | ||
375 | while (t->to_stratum == st->to_stratum) { | |
376 | /* There's already something on this stratum. Close it off. */ | |
377 | (st->to_close) (0); | |
378 | if (prev) | |
379 | prev->to_next = st->to_next; /* Unchain old target_ops */ | |
380 | else | |
381 | current_target = st->to_next; /* Unchain first on list */ | |
382 | st = st->to_next; | |
383 | } | |
384 | ||
385 | /* We have removed all targets in our stratum, now add ourself. */ | |
386 | t->to_next = st; | |
387 | if (prev) | |
388 | prev->to_next = t; | |
389 | else | |
390 | current_target = t; | |
391 | ||
392 | cleanup_target (current_target); | |
393 | return prev != 0; | |
394 | } | |
395 | ||
396 | /* Remove a target_ops vector from the stack, wherever it may be. | |
397 | Return how many times it was removed (0 or 1 unless bug). */ | |
398 | ||
399 | int | |
400 | unpush_target (t) | |
401 | struct target_ops *t; | |
402 | { | |
403 | struct target_ops *u, *v; | |
404 | int result = 0; | |
405 | ||
406 | for (u = current_target, v = 0; | |
407 | u; | |
408 | v = u, u = u->to_next) | |
409 | if (u == t) | |
410 | { | |
411 | if (v == 0) | |
412 | pop_target(); /* unchain top copy */ | |
413 | else { | |
414 | (t->to_close)(0); /* Let it clean up */ | |
415 | v->to_next = t->to_next; /* unchain middle copy */ | |
416 | } | |
417 | result++; | |
418 | } | |
419 | return result; | |
420 | } | |
421 | ||
422 | void | |
423 | pop_target () | |
424 | { | |
425 | (current_target->to_close)(0); /* Let it clean up */ | |
426 | current_target = current_target->to_next; | |
49781499 JK |
427 | #if 0 |
428 | /* This will dump core if ever called--push_target expects current_target | |
429 | to be non-NULL. But I don't think it's needed; I don't see how the | |
430 | dummy_target could ever be removed from the stack. */ | |
bd5635a1 RP |
431 | if (!current_target) /* At bottom, push dummy. */ |
432 | push_target (&dummy_target); | |
49781499 | 433 | #endif |
bd5635a1 RP |
434 | } |
435 | ||
49781499 | 436 | #undef MIN |
e17960fb JG |
437 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) |
438 | ||
4ad0021e JK |
439 | /* target_read_string -- read a null terminated string, up to LEN bytes, |
440 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
441 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
442 | is responsible for freeing it. Return the number of bytes successfully | |
443 | read. */ | |
e17960fb JG |
444 | |
445 | int | |
4ad0021e | 446 | target_read_string (memaddr, string, len, errnop) |
e17960fb | 447 | CORE_ADDR memaddr; |
4ad0021e | 448 | char **string; |
e17960fb | 449 | int len; |
4ad0021e | 450 | int *errnop; |
e17960fb JG |
451 | { |
452 | int tlen, origlen, offset, i; | |
453 | char buf[4]; | |
4ad0021e JK |
454 | int errcode = 0; |
455 | char *buffer; | |
456 | int buffer_allocated; | |
457 | char *bufptr; | |
458 | unsigned int nbytes_read = 0; | |
459 | ||
460 | /* Small for testing. */ | |
461 | buffer_allocated = 4; | |
462 | buffer = xmalloc (buffer_allocated); | |
463 | bufptr = buffer; | |
e17960fb JG |
464 | |
465 | origlen = len; | |
466 | ||
467 | while (len > 0) | |
468 | { | |
469 | tlen = MIN (len, 4 - (memaddr & 3)); | |
470 | offset = memaddr & 3; | |
471 | ||
4ad0021e JK |
472 | errcode = target_xfer_memory (memaddr & ~3, buf, 4, 0); |
473 | if (errcode != 0) | |
474 | goto done; | |
475 | ||
476 | if (bufptr - buffer + tlen > buffer_allocated) | |
477 | { | |
478 | unsigned int bytes; | |
479 | bytes = bufptr - buffer; | |
480 | buffer_allocated *= 2; | |
481 | buffer = xrealloc (buffer, buffer_allocated); | |
482 | bufptr = buffer + bytes; | |
483 | } | |
e17960fb JG |
484 | |
485 | for (i = 0; i < tlen; i++) | |
486 | { | |
4ad0021e | 487 | *bufptr++ = buf[i + offset]; |
e17960fb | 488 | if (buf[i + offset] == '\000') |
4ad0021e JK |
489 | { |
490 | nbytes_read += i + 1; | |
491 | goto done; | |
492 | } | |
e17960fb JG |
493 | } |
494 | ||
495 | memaddr += tlen; | |
496 | len -= tlen; | |
4ad0021e | 497 | nbytes_read += tlen; |
e17960fb | 498 | } |
4ad0021e JK |
499 | done: |
500 | if (errnop != NULL) | |
501 | *errnop = errcode; | |
502 | if (string != NULL) | |
503 | *string = buffer; | |
504 | return nbytes_read; | |
e17960fb JG |
505 | } |
506 | ||
49781499 JK |
507 | /* Read LEN bytes of target memory at address MEMADDR, placing the results in |
508 | GDB's memory at MYADDR. Returns either 0 for success or an errno value | |
509 | if any error occurs. | |
bd5635a1 | 510 | |
49781499 JK |
511 | If an error occurs, no guarantee is made about the contents of the data at |
512 | MYADDR. In particular, the caller should not depend upon partial reads | |
513 | filling the buffer with good data. There is no way for the caller to know | |
514 | how much good data might have been transfered anyway. Callers that can | |
515 | deal with partial reads should call target_read_memory_partial. */ | |
bd5635a1 RP |
516 | |
517 | int | |
518 | target_read_memory (memaddr, myaddr, len) | |
519 | CORE_ADDR memaddr; | |
520 | char *myaddr; | |
521 | int len; | |
522 | { | |
523 | return target_xfer_memory (memaddr, myaddr, len, 0); | |
524 | } | |
525 | ||
49781499 JK |
526 | /* Read LEN bytes of target memory at address MEMADDR, placing the results |
527 | in GDB's memory at MYADDR. Returns a count of the bytes actually read, | |
528 | and optionally an errno value in the location pointed to by ERRNOPTR | |
529 | if ERRNOPTR is non-null. */ | |
530 | ||
531 | int | |
532 | target_read_memory_partial (memaddr, myaddr, len, errnoptr) | |
533 | CORE_ADDR memaddr; | |
534 | char *myaddr; | |
535 | int len; | |
536 | int *errnoptr; | |
537 | { | |
538 | int nread; /* Number of bytes actually read. */ | |
539 | int errcode; /* Error from last read. */ | |
540 | ||
541 | /* First try a complete read. */ | |
542 | errcode = target_xfer_memory (memaddr, myaddr, len, 0); | |
543 | if (errcode == 0) | |
544 | { | |
545 | /* Got it all. */ | |
546 | nread = len; | |
547 | } | |
548 | else | |
549 | { | |
550 | /* Loop, reading one byte at a time until we get as much as we can. */ | |
551 | for (errcode = 0, nread = 0; len > 0 && errcode == 0; nread++, len--) | |
552 | { | |
553 | errcode = target_xfer_memory (memaddr++, myaddr++, 1, 0); | |
554 | } | |
555 | /* If an error, the last read was unsuccessful, so adjust count. */ | |
556 | if (errcode != 0) | |
557 | { | |
558 | nread--; | |
559 | } | |
560 | } | |
561 | if (errnoptr != NULL) | |
562 | { | |
563 | *errnoptr = errcode; | |
564 | } | |
565 | return (nread); | |
566 | } | |
567 | ||
bd5635a1 RP |
568 | int |
569 | target_write_memory (memaddr, myaddr, len) | |
570 | CORE_ADDR memaddr; | |
571 | char *myaddr; | |
572 | int len; | |
573 | { | |
574 | return target_xfer_memory (memaddr, myaddr, len, 1); | |
575 | } | |
576 | ||
49781499 JK |
577 | /* Move memory to or from the targets. Iterate until all of it has |
578 | been moved, if necessary. The top target gets priority; anything | |
579 | it doesn't want, is offered to the next one down, etc. Note the | |
580 | business with curlen: if an early target says "no, but I have a | |
581 | boundary overlapping this xfer" then we shorten what we offer to | |
582 | the subsequent targets so the early guy will get a chance at the | |
583 | tail before the subsequent ones do. | |
584 | ||
585 | Result is 0 or errno value. */ | |
586 | ||
bd5635a1 RP |
587 | int |
588 | target_xfer_memory (memaddr, myaddr, len, write) | |
589 | CORE_ADDR memaddr; | |
590 | char *myaddr; | |
591 | int len; | |
592 | int write; | |
593 | { | |
594 | int curlen; | |
595 | int res; | |
596 | struct target_ops *t; | |
49781499 JK |
597 | |
598 | /* to_xfer_memory is not guaranteed to set errno, even when it returns | |
599 | 0. */ | |
600 | errno = 0; | |
601 | ||
bd5635a1 | 602 | /* The quick case is that the top target does it all. */ |
e17960fb JG |
603 | res = current_target->to_xfer_memory |
604 | (memaddr, myaddr, len, write, current_target); | |
bd5635a1 RP |
605 | if (res == len) |
606 | return 0; | |
607 | ||
608 | if (res > 0) | |
609 | goto bump; | |
610 | /* If res <= 0 then we call it again in the loop. Ah well. */ | |
611 | ||
612 | for (; len > 0;) | |
613 | { | |
614 | curlen = len; /* Want to do it all */ | |
615 | for (t = current_target; | |
616 | t; | |
617 | t = t->to_has_all_memory? 0: t->to_next) | |
618 | { | |
e17960fb | 619 | res = t->to_xfer_memory(memaddr, myaddr, curlen, write, t); |
bd5635a1 RP |
620 | if (res > 0) break; /* Handled all or part of xfer */ |
621 | if (res == 0) continue; /* Handled none */ | |
622 | curlen = -res; /* Could handle once we get past res bytes */ | |
623 | } | |
624 | if (res <= 0) | |
625 | { | |
626 | /* If this address is for nonexistent memory, | |
627 | read zeros if reading, or do nothing if writing. Return error. */ | |
628 | if (!write) | |
a8e033f2 | 629 | memset (myaddr, 0, len); |
e17960fb JG |
630 | if (errno == 0) |
631 | return EIO; | |
632 | else | |
633 | return errno; | |
bd5635a1 RP |
634 | } |
635 | bump: | |
636 | memaddr += res; | |
637 | myaddr += res; | |
638 | len -= res; | |
639 | } | |
640 | return 0; /* We managed to cover it all somehow. */ | |
641 | } | |
642 | ||
643 | ||
e1ce8aa5 | 644 | /* ARGSUSED */ |
bd5635a1 RP |
645 | static void |
646 | target_info (args, from_tty) | |
647 | char *args; | |
648 | int from_tty; | |
649 | { | |
650 | struct target_ops *t; | |
651 | int has_all_mem = 0; | |
652 | ||
80d68b1d | 653 | if (symfile_objfile != NULL) |
67ac9759 | 654 | printf_unfiltered ("Symbols from \"%s\".\n", symfile_objfile->name); |
bd5635a1 RP |
655 | |
656 | #ifdef FILES_INFO_HOOK | |
657 | if (FILES_INFO_HOOK ()) | |
658 | return; | |
659 | #endif | |
660 | ||
661 | for (t = current_target; | |
662 | t; | |
663 | t = t->to_next) | |
664 | { | |
665 | if ((int)(t->to_stratum) <= (int)dummy_stratum) | |
666 | continue; | |
667 | if (has_all_mem) | |
67ac9759 JK |
668 | printf_unfiltered("\tWhile running this, gdb does not access memory from...\n"); |
669 | printf_unfiltered("%s:\n", t->to_longname); | |
e17960fb | 670 | (t->to_files_info)(t); |
bd5635a1 RP |
671 | has_all_mem = t->to_has_all_memory; |
672 | } | |
673 | } | |
674 | ||
f2fc6e7a JK |
675 | /* This is to be called by the open routine before it does |
676 | anything. */ | |
bd5635a1 | 677 | |
f2fc6e7a JK |
678 | void |
679 | target_preopen (from_tty) | |
bd5635a1 RP |
680 | int from_tty; |
681 | { | |
bd5635a1 RP |
682 | dont_repeat(); |
683 | ||
bd5635a1 RP |
684 | if (target_has_execution) |
685 | { | |
686 | if (query ("A program is being debugged already. Kill it? ")) | |
e17960fb | 687 | target_kill (); |
bd5635a1 RP |
688 | else |
689 | error ("Program not killed."); | |
690 | } | |
4ad0021e JK |
691 | |
692 | /* Calling target_kill may remove the target from the stack. But if | |
693 | it doesn't (which seems like a win for UDI), remove it now. */ | |
694 | ||
695 | if (target_has_execution) | |
696 | pop_target (); | |
bd5635a1 RP |
697 | } |
698 | ||
49781499 JK |
699 | /* Detach a target after doing deferred register stores. */ |
700 | ||
701 | void | |
702 | target_detach (args, from_tty) | |
703 | char *args; | |
704 | int from_tty; | |
705 | { | |
706 | /* Handle any optimized stores to the inferior. */ | |
707 | #ifdef DO_DEFERRED_STORES | |
708 | DO_DEFERRED_STORES; | |
709 | #endif | |
710 | (current_target->to_detach) (args, from_tty); | |
49781499 JK |
711 | } |
712 | ||
597dc86b SG |
713 | /* Look through the list of possible targets for a target that can |
714 | execute a run or attach command without any other data. This is | |
715 | used to locate the default process stratum. | |
716 | ||
717 | Result is always valid (error() is called for errors). */ | |
718 | ||
719 | static struct target_ops * | |
720 | find_default_run_target (do_mesg) | |
721 | char *do_mesg; | |
722 | { | |
723 | struct target_ops **t; | |
49781499 | 724 | struct target_ops *runable = NULL; |
597dc86b SG |
725 | int count; |
726 | ||
727 | count = 0; | |
728 | ||
729 | for (t = target_structs; t < target_structs + target_struct_size; | |
730 | ++t) | |
731 | { | |
732 | if (target_can_run(*t)) | |
733 | { | |
734 | runable = *t; | |
735 | ++count; | |
736 | } | |
737 | } | |
738 | ||
739 | if (count != 1) | |
740 | error ("Don't know how to %s. Try \"help target\".", do_mesg); | |
741 | ||
742 | return runable; | |
743 | } | |
744 | ||
745 | void | |
746 | find_default_attach (args, from_tty) | |
747 | char *args; | |
748 | int from_tty; | |
749 | { | |
750 | struct target_ops *t; | |
751 | ||
752 | t = find_default_run_target("attach"); | |
753 | (t->to_attach) (args, from_tty); | |
754 | return; | |
755 | } | |
756 | ||
757 | void | |
758 | find_default_create_inferior (exec_file, allargs, env) | |
759 | char *exec_file; | |
760 | char *allargs; | |
761 | char **env; | |
762 | { | |
763 | struct target_ops *t; | |
764 | ||
765 | t = find_default_run_target("run"); | |
766 | (t->to_create_inferior) (exec_file, allargs, env); | |
767 | return; | |
768 | } | |
769 | ||
770 | static int | |
771 | return_zero () | |
772 | { | |
773 | return 0; | |
774 | } | |
775 | ||
49781499 JK |
776 | struct target_ops * |
777 | find_core_target () | |
778 | { | |
779 | struct target_ops **t; | |
780 | struct target_ops *runable = NULL; | |
781 | int count; | |
782 | ||
783 | count = 0; | |
784 | ||
785 | for (t = target_structs; t < target_structs + target_struct_size; | |
786 | ++t) | |
787 | { | |
788 | if ((*t)->to_stratum == core_stratum) | |
789 | { | |
790 | runable = *t; | |
791 | ++count; | |
792 | } | |
793 | } | |
794 | ||
795 | return(count == 1 ? runable : NULL); | |
796 | } | |
67ac9759 JK |
797 | \f |
798 | /* This table must match in order and size the signals in enum target_signal | |
799 | in target.h. */ | |
800 | static struct { | |
801 | char *name; | |
802 | char *string; | |
803 | } signals [] = | |
804 | { | |
805 | {"0", "Signal 0"}, | |
806 | {"SIGHUP", "Hangup"}, | |
807 | {"SIGINT", "Interrupt"}, | |
808 | {"SIGQUIT", "Quit"}, | |
809 | {"SIGILL", "Illegal instruction"}, | |
810 | {"SIGTRAP", "Trace/breakpoint trap"}, | |
811 | {"SIGABRT", "Aborted"}, | |
812 | {"SIGEMT", "Emulation trap"}, | |
813 | {"SIGFPE", "Arithmetic exception"}, | |
814 | {"SIGKILL", "Killed"}, | |
815 | {"SIGBUS", "Bus error"}, | |
816 | {"SIGSEGV", "Segmentation fault"}, | |
817 | {"SIGSYS", "Bad system call"}, | |
818 | {"SIGPIPE", "Broken pipe"}, | |
819 | {"SIGALRM", "Alarm clock"}, | |
820 | {"SIGTERM", "Terminated"}, | |
821 | {"SIGURG", "Urgent I/O condition"}, | |
822 | {"SIGSTOP", "Stopped (signal)"}, | |
823 | {"SIGTSTP", "Stopped (user)"}, | |
824 | {"SIGCONT", "Continued"}, | |
825 | {"SIGCHLD", "Child status changed"}, | |
826 | {"SIGTTIN", "Stopped (tty input)"}, | |
827 | {"SIGTTOU", "Stopped (tty output)"}, | |
828 | {"SIGIO", "I/O possible"}, | |
829 | {"SIGXCPU", "CPU time limit exceeded"}, | |
830 | {"SIGXFSZ", "File size limit exceeded"}, | |
831 | {"SIGVTALRM", "Virtual timer expired"}, | |
832 | {"SIGPROF", "Profiling timer expired"}, | |
833 | {"SIGWINCH", "Window size changed"}, | |
834 | {"SIGLOST", "Resource lost"}, | |
835 | {"SIGUSR1", "User defined signal 1"}, | |
836 | {"SIGUSR2", "User defined signal 2"}, | |
837 | {"SIGPWR", "Power fail/restart"}, | |
838 | {"SIGPOLL", "Pollable event occurred"}, | |
839 | {"SIGWIND", "SIGWIND"}, | |
840 | {"SIGPHONE", "SIGPHONE"}, | |
841 | {"SIGWAITING", "Process's LWPs are blocked"}, | |
842 | {"SIGLWP", "Signal LWP"}, | |
843 | {"SIGDANGER", "Swap space dangerously low"}, | |
844 | {"SIGGRANT", "Monitor mode granted"}, | |
845 | {"SIGRETRACT", "Need to relinguish monitor mode"}, | |
846 | {"SIGMSG", "Monitor mode data available"}, | |
847 | {"SIGSOUND", "Sound completed"}, | |
848 | {"SIGSAK", "Secure attention"}, | |
849 | {NULL, "Unknown signal"}, | |
4ad0021e JK |
850 | {NULL, "Internal error: printing TARGET_SIGNAL_DEFAULT"}, |
851 | ||
67ac9759 JK |
852 | /* Last entry, used to check whether the table is the right size. */ |
853 | {NULL, "TARGET_SIGNAL_MAGIC"} | |
854 | }; | |
855 | ||
856 | /* Return the string for a signal. */ | |
857 | char * | |
858 | target_signal_to_string (sig) | |
859 | enum target_signal sig; | |
860 | { | |
861 | return signals[sig].string; | |
862 | } | |
863 | ||
864 | /* Return the name for a signal. */ | |
865 | char * | |
866 | target_signal_to_name (sig) | |
867 | enum target_signal sig; | |
868 | { | |
869 | if (sig == TARGET_SIGNAL_UNKNOWN) | |
870 | /* I think the code which prints this will always print it along with | |
871 | the string, so no need to be verbose. */ | |
872 | return "?"; | |
873 | return signals[sig].name; | |
874 | } | |
875 | ||
876 | /* Given a name, return its signal. */ | |
877 | enum target_signal | |
878 | target_signal_from_name (name) | |
879 | char *name; | |
880 | { | |
881 | enum target_signal sig; | |
882 | ||
883 | /* It's possible we also should allow "SIGCLD" as well as "SIGCHLD" | |
884 | for TARGET_SIGNAL_SIGCHLD. SIGIOT, on the other hand, is more | |
885 | questionable; seems like by now people should call it SIGABRT | |
886 | instead. */ | |
887 | ||
4ad0021e JK |
888 | /* This ugly cast brought to you by the native VAX compiler. */ |
889 | for (sig = TARGET_SIGNAL_HUP; | |
890 | signals[sig].name != NULL; | |
891 | sig = (enum target_signal)((int)sig + 1)) | |
67ac9759 JK |
892 | if (STREQ (name, signals[sig].name)) |
893 | return sig; | |
894 | return TARGET_SIGNAL_UNKNOWN; | |
895 | } | |
4ad0021e JK |
896 | \f |
897 | /* The following functions are to help certain targets deal | |
898 | with the signal/waitstatus stuff. They could just as well be in | |
899 | a file called native-utils.c or unixwaitstatus-utils.c or whatever. */ | |
900 | ||
901 | /* Convert host signal to our signals. */ | |
902 | enum target_signal | |
903 | target_signal_from_host (hostsig) | |
904 | int hostsig; | |
905 | { | |
906 | /* A switch statement would make sense but would require special kludges | |
907 | to deal with the cases where more than one signal has the same number. */ | |
908 | ||
909 | if (hostsig == 0) return TARGET_SIGNAL_0; | |
910 | ||
911 | #if defined (SIGHUP) | |
912 | if (hostsig == SIGHUP) return TARGET_SIGNAL_HUP; | |
913 | #endif | |
914 | #if defined (SIGINT) | |
915 | if (hostsig == SIGINT) return TARGET_SIGNAL_INT; | |
916 | #endif | |
917 | #if defined (SIGQUIT) | |
918 | if (hostsig == SIGQUIT) return TARGET_SIGNAL_QUIT; | |
919 | #endif | |
920 | #if defined (SIGILL) | |
921 | if (hostsig == SIGILL) return TARGET_SIGNAL_ILL; | |
922 | #endif | |
923 | #if defined (SIGTRAP) | |
924 | if (hostsig == SIGTRAP) return TARGET_SIGNAL_TRAP; | |
925 | #endif | |
926 | #if defined (SIGABRT) | |
927 | if (hostsig == SIGABRT) return TARGET_SIGNAL_ABRT; | |
928 | #endif | |
929 | #if defined (SIGEMT) | |
930 | if (hostsig == SIGEMT) return TARGET_SIGNAL_EMT; | |
931 | #endif | |
932 | #if defined (SIGFPE) | |
933 | if (hostsig == SIGFPE) return TARGET_SIGNAL_FPE; | |
934 | #endif | |
935 | #if defined (SIGKILL) | |
936 | if (hostsig == SIGKILL) return TARGET_SIGNAL_KILL; | |
937 | #endif | |
938 | #if defined (SIGBUS) | |
939 | if (hostsig == SIGBUS) return TARGET_SIGNAL_BUS; | |
940 | #endif | |
941 | #if defined (SIGSEGV) | |
942 | if (hostsig == SIGSEGV) return TARGET_SIGNAL_SEGV; | |
943 | #endif | |
944 | #if defined (SIGSYS) | |
945 | if (hostsig == SIGSYS) return TARGET_SIGNAL_SYS; | |
946 | #endif | |
947 | #if defined (SIGPIPE) | |
948 | if (hostsig == SIGPIPE) return TARGET_SIGNAL_PIPE; | |
949 | #endif | |
950 | #if defined (SIGALRM) | |
951 | if (hostsig == SIGALRM) return TARGET_SIGNAL_ALRM; | |
952 | #endif | |
953 | #if defined (SIGTERM) | |
954 | if (hostsig == SIGTERM) return TARGET_SIGNAL_TERM; | |
955 | #endif | |
956 | #if defined (SIGUSR1) | |
957 | if (hostsig == SIGUSR1) return TARGET_SIGNAL_USR1; | |
958 | #endif | |
959 | #if defined (SIGUSR2) | |
960 | if (hostsig == SIGUSR2) return TARGET_SIGNAL_USR2; | |
961 | #endif | |
962 | #if defined (SIGCLD) | |
963 | if (hostsig == SIGCLD) return TARGET_SIGNAL_CHLD; | |
964 | #endif | |
965 | #if defined (SIGCHLD) | |
966 | if (hostsig == SIGCHLD) return TARGET_SIGNAL_CHLD; | |
967 | #endif | |
968 | #if defined (SIGPWR) | |
969 | if (hostsig == SIGPWR) return TARGET_SIGNAL_PWR; | |
970 | #endif | |
971 | #if defined (SIGWINCH) | |
972 | if (hostsig == SIGWINCH) return TARGET_SIGNAL_WINCH; | |
973 | #endif | |
974 | #if defined (SIGURG) | |
975 | if (hostsig == SIGURG) return TARGET_SIGNAL_URG; | |
976 | #endif | |
977 | #if defined (SIGIO) | |
978 | if (hostsig == SIGIO) return TARGET_SIGNAL_IO; | |
979 | #endif | |
980 | #if defined (SIGPOLL) | |
981 | if (hostsig == SIGPOLL) return TARGET_SIGNAL_POLL; | |
982 | #endif | |
983 | #if defined (SIGSTOP) | |
984 | if (hostsig == SIGSTOP) return TARGET_SIGNAL_STOP; | |
985 | #endif | |
986 | #if defined (SIGTSTP) | |
987 | if (hostsig == SIGTSTP) return TARGET_SIGNAL_TSTP; | |
988 | #endif | |
989 | #if defined (SIGCONT) | |
990 | if (hostsig == SIGCONT) return TARGET_SIGNAL_CONT; | |
991 | #endif | |
992 | #if defined (SIGTTIN) | |
993 | if (hostsig == SIGTTIN) return TARGET_SIGNAL_TTIN; | |
994 | #endif | |
995 | #if defined (SIGTTOU) | |
996 | if (hostsig == SIGTTOU) return TARGET_SIGNAL_TTOU; | |
997 | #endif | |
998 | #if defined (SIGVTALRM) | |
999 | if (hostsig == SIGVTALRM) return TARGET_SIGNAL_VTALRM; | |
1000 | #endif | |
1001 | #if defined (SIGPROF) | |
1002 | if (hostsig == SIGPROF) return TARGET_SIGNAL_PROF; | |
1003 | #endif | |
1004 | #if defined (SIGXCPU) | |
1005 | if (hostsig == SIGXCPU) return TARGET_SIGNAL_XCPU; | |
1006 | #endif | |
1007 | #if defined (SIGXFSZ) | |
1008 | if (hostsig == SIGXFSZ) return TARGET_SIGNAL_XFSZ; | |
1009 | #endif | |
1010 | #if defined (SIGWIND) | |
1011 | if (hostsig == SIGWIND) return TARGET_SIGNAL_WIND; | |
1012 | #endif | |
1013 | #if defined (SIGPHONE) | |
1014 | if (hostsig == SIGPHONE) return TARGET_SIGNAL_PHONE; | |
1015 | #endif | |
1016 | #if defined (SIGLOST) | |
1017 | if (hostsig == SIGLOST) return TARGET_SIGNAL_LOST; | |
1018 | #endif | |
1019 | #if defined (SIGWAITING) | |
1020 | if (hostsig == SIGWAITING) return TARGET_SIGNAL_WAITING; | |
1021 | #endif | |
1022 | #if defined (SIGLWP) | |
1023 | if (hostsig == SIGLWP) return TARGET_SIGNAL_LWP; | |
1024 | #endif | |
1025 | #if defined (SIGDANGER) | |
1026 | if (hostsig == SIGDANGER) return TARGET_SIGNAL_DANGER; | |
1027 | #endif | |
1028 | #if defined (SIGGRANT) | |
1029 | if (hostsig == SIGGRANT) return TARGET_SIGNAL_GRANT; | |
1030 | #endif | |
1031 | #if defined (SIGRETRACT) | |
1032 | if (hostsig == SIGRETRACT) return TARGET_SIGNAL_RETRACT; | |
1033 | #endif | |
1034 | #if defined (SIGMSG) | |
1035 | if (hostsig == SIGMSG) return TARGET_SIGNAL_MSG; | |
1036 | #endif | |
1037 | #if defined (SIGSOUND) | |
1038 | if (hostsig == SIGSOUND) return TARGET_SIGNAL_SOUND; | |
1039 | #endif | |
1040 | #if defined (SIGSAK) | |
1041 | if (hostsig == SIGSAK) return TARGET_SIGNAL_SAK; | |
1042 | #endif | |
1043 | return TARGET_SIGNAL_UNKNOWN; | |
1044 | } | |
1045 | ||
1046 | int | |
1047 | target_signal_to_host (oursig) | |
1048 | enum target_signal oursig; | |
1049 | { | |
1050 | switch (oursig) | |
1051 | { | |
1052 | case TARGET_SIGNAL_0: return 0; | |
1053 | ||
1054 | #if defined (SIGHUP) | |
1055 | case TARGET_SIGNAL_HUP: return SIGHUP; | |
1056 | #endif | |
1057 | #if defined (SIGINT) | |
1058 | case TARGET_SIGNAL_INT: return SIGINT; | |
1059 | #endif | |
1060 | #if defined (SIGQUIT) | |
1061 | case TARGET_SIGNAL_QUIT: return SIGQUIT; | |
1062 | #endif | |
1063 | #if defined (SIGILL) | |
1064 | case TARGET_SIGNAL_ILL: return SIGILL; | |
1065 | #endif | |
1066 | #if defined (SIGTRAP) | |
1067 | case TARGET_SIGNAL_TRAP: return SIGTRAP; | |
1068 | #endif | |
1069 | #if defined (SIGABRT) | |
1070 | case TARGET_SIGNAL_ABRT: return SIGABRT; | |
1071 | #endif | |
1072 | #if defined (SIGEMT) | |
1073 | case TARGET_SIGNAL_EMT: return SIGEMT; | |
1074 | #endif | |
1075 | #if defined (SIGFPE) | |
1076 | case TARGET_SIGNAL_FPE: return SIGFPE; | |
1077 | #endif | |
1078 | #if defined (SIGKILL) | |
1079 | case TARGET_SIGNAL_KILL: return SIGKILL; | |
1080 | #endif | |
1081 | #if defined (SIGBUS) | |
1082 | case TARGET_SIGNAL_BUS: return SIGBUS; | |
1083 | #endif | |
1084 | #if defined (SIGSEGV) | |
1085 | case TARGET_SIGNAL_SEGV: return SIGSEGV; | |
1086 | #endif | |
1087 | #if defined (SIGSYS) | |
1088 | case TARGET_SIGNAL_SYS: return SIGSYS; | |
1089 | #endif | |
1090 | #if defined (SIGPIPE) | |
1091 | case TARGET_SIGNAL_PIPE: return SIGPIPE; | |
1092 | #endif | |
1093 | #if defined (SIGALRM) | |
1094 | case TARGET_SIGNAL_ALRM: return SIGALRM; | |
1095 | #endif | |
1096 | #if defined (SIGTERM) | |
1097 | case TARGET_SIGNAL_TERM: return SIGTERM; | |
1098 | #endif | |
1099 | #if defined (SIGUSR1) | |
1100 | case TARGET_SIGNAL_USR1: return SIGUSR1; | |
1101 | #endif | |
1102 | #if defined (SIGUSR2) | |
1103 | case TARGET_SIGNAL_USR2: return SIGUSR2; | |
1104 | #endif | |
1105 | #if defined (SIGCHLD) || defined (SIGCLD) | |
1106 | case TARGET_SIGNAL_CHLD: | |
1107 | #if defined (SIGCHLD) | |
1108 | return SIGCHLD; | |
1109 | #else | |
1110 | return SIGCLD; | |
1111 | #endif | |
1112 | #endif /* SIGCLD or SIGCHLD */ | |
1113 | #if defined (SIGPWR) | |
1114 | case TARGET_SIGNAL_PWR: return SIGPWR; | |
1115 | #endif | |
1116 | #if defined (SIGWINCH) | |
1117 | case TARGET_SIGNAL_WINCH: return SIGWINCH; | |
1118 | #endif | |
1119 | #if defined (SIGURG) | |
1120 | case TARGET_SIGNAL_URG: return SIGURG; | |
1121 | #endif | |
1122 | #if defined (SIGIO) | |
1123 | case TARGET_SIGNAL_IO: return SIGIO; | |
1124 | #endif | |
1125 | #if defined (SIGPOLL) | |
1126 | case TARGET_SIGNAL_POLL: return SIGPOLL; | |
1127 | #endif | |
1128 | #if defined (SIGSTOP) | |
1129 | case TARGET_SIGNAL_STOP: return SIGSTOP; | |
1130 | #endif | |
1131 | #if defined (SIGTSTP) | |
1132 | case TARGET_SIGNAL_TSTP: return SIGTSTP; | |
1133 | #endif | |
1134 | #if defined (SIGCONT) | |
1135 | case TARGET_SIGNAL_CONT: return SIGCONT; | |
1136 | #endif | |
1137 | #if defined (SIGTTIN) | |
1138 | case TARGET_SIGNAL_TTIN: return SIGTTIN; | |
1139 | #endif | |
1140 | #if defined (SIGTTOU) | |
1141 | case TARGET_SIGNAL_TTOU: return SIGTTOU; | |
1142 | #endif | |
1143 | #if defined (SIGVTALRM) | |
1144 | case TARGET_SIGNAL_VTALRM: return SIGVTALRM; | |
1145 | #endif | |
1146 | #if defined (SIGPROF) | |
1147 | case TARGET_SIGNAL_PROF: return SIGPROF; | |
1148 | #endif | |
1149 | #if defined (SIGXCPU) | |
1150 | case TARGET_SIGNAL_XCPU: return SIGXCPU; | |
1151 | #endif | |
1152 | #if defined (SIGXFSZ) | |
1153 | case TARGET_SIGNAL_XFSZ: return SIGXFSZ; | |
1154 | #endif | |
1155 | #if defined (SIGWIND) | |
1156 | case TARGET_SIGNAL_WIND: return SIGWIND; | |
1157 | #endif | |
1158 | #if defined (SIGPHONE) | |
1159 | case TARGET_SIGNAL_PHONE: return SIGPHONE; | |
1160 | #endif | |
1161 | #if defined (SIGLOST) | |
1162 | case TARGET_SIGNAL_LOST: return SIGLOST; | |
1163 | #endif | |
1164 | #if defined (SIGWAITING) | |
1165 | case TARGET_SIGNAL_WAITING: return SIGWAITING; | |
1166 | #endif | |
1167 | #if defined (SIGLWP) | |
1168 | case TARGET_SIGNAL_LWP: return SIGLWP; | |
1169 | #endif | |
1170 | #if defined (SIGDANGER) | |
1171 | case TARGET_SIGNAL_DANGER: return SIGDANGER; | |
1172 | #endif | |
1173 | #if defined (SIGGRANT) | |
1174 | case TARGET_SIGNAL_GRANT: return SIGGRANT; | |
1175 | #endif | |
1176 | #if defined (SIGRETRACT) | |
1177 | case TARGET_SIGNAL_RETRACT: return SIGRETRACT; | |
1178 | #endif | |
1179 | #if defined (SIGMSG) | |
1180 | case TARGET_SIGNAL_MSG: return SIGMSG; | |
1181 | #endif | |
1182 | #if defined (SIGSOUND) | |
1183 | case TARGET_SIGNAL_SOUND: return SIGSOUND; | |
1184 | #endif | |
1185 | #if defined (SIGSAK) | |
1186 | case TARGET_SIGNAL_SAK: return SIGSAK; | |
1187 | #endif | |
1188 | default: | |
1189 | /* The user might be trying to do "signal SIGSAK" where this system | |
1190 | doesn't have SIGSAK. */ | |
1191 | warning ("Signal %s does not exist on this system.\n", | |
1192 | target_signal_to_name (oursig)); | |
1193 | return 0; | |
1194 | } | |
1195 | } | |
1196 | ||
1197 | /* Helper function for child_wait and the Lynx derivatives of child_wait. | |
1198 | HOSTSTATUS is the waitstatus from wait() or the equivalent; store our | |
1199 | translation of that in OURSTATUS. */ | |
1200 | void | |
1201 | store_waitstatus (ourstatus, hoststatus) | |
1202 | struct target_waitstatus *ourstatus; | |
1203 | int hoststatus; | |
1204 | { | |
1205 | #ifdef CHILD_SPECIAL_WAITSTATUS | |
1206 | /* CHILD_SPECIAL_WAITSTATUS should return nonzero and set *OURSTATUS | |
1207 | if it wants to deal with hoststatus. */ | |
1208 | if (CHILD_SPECIAL_WAITSTATUS (ourstatus, hoststatus)) | |
1209 | return; | |
1210 | #endif | |
1211 | ||
1212 | if (WIFEXITED (hoststatus)) | |
1213 | { | |
1214 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1215 | ourstatus->value.integer = WEXITSTATUS (hoststatus); | |
1216 | } | |
1217 | else if (!WIFSTOPPED (hoststatus)) | |
1218 | { | |
1219 | ourstatus->kind = TARGET_WAITKIND_SIGNALLED; | |
1220 | ourstatus->value.sig = target_signal_from_host (WTERMSIG (hoststatus)); | |
1221 | } | |
1222 | else | |
1223 | { | |
1224 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
1225 | ourstatus->value.sig = target_signal_from_host (WSTOPSIG (hoststatus)); | |
1226 | } | |
1227 | } | |
1228 | ||
67ac9759 | 1229 | \f |
49781499 JK |
1230 | /* Convert a normal process ID to a string. Returns the string in a static |
1231 | buffer. */ | |
1232 | ||
1233 | char * | |
1234 | normal_pid_to_str (pid) | |
1235 | int pid; | |
1236 | { | |
1237 | static char buf[30]; | |
1238 | ||
1239 | sprintf (buf, "process %d", pid); | |
1240 | ||
1241 | return buf; | |
1242 | } | |
67ac9759 | 1243 | \f |
bd5635a1 RP |
1244 | static char targ_desc[] = |
1245 | "Names of targets and files being debugged.\n\ | |
1246 | Shows the entire stack of targets currently in use (including the exec-file,\n\ | |
1247 | core-file, and process, if any), as well as the symbol file name."; | |
1248 | ||
1249 | void | |
1250 | _initialize_targets () | |
1251 | { | |
1252 | current_target = &dummy_target; | |
1253 | cleanup_target (current_target); | |
1254 | ||
bd5635a1 RP |
1255 | add_info ("target", target_info, targ_desc); |
1256 | add_info ("files", target_info, targ_desc); | |
67ac9759 JK |
1257 | |
1258 | if (!STREQ (signals[TARGET_SIGNAL_LAST].string, "TARGET_SIGNAL_MAGIC")) | |
1259 | abort (); | |
bd5635a1 | 1260 | } |