Commit | Line | Data |
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c906108c | 1 | /* Select target systems and architectures at runtime for GDB. |
7998dfc3 | 2 | |
b811d2c2 | 3 | Copyright (C) 1990-2020 Free Software Foundation, Inc. |
7998dfc3 | 4 | |
c906108c SS |
5 | Contributed by Cygnus Support. |
6 | ||
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
c906108c | 23 | #include "target.h" |
68c765e2 | 24 | #include "target-dcache.h" |
c906108c SS |
25 | #include "gdbcmd.h" |
26 | #include "symtab.h" | |
27 | #include "inferior.h" | |
45741a9c | 28 | #include "infrun.h" |
c906108c SS |
29 | #include "bfd.h" |
30 | #include "symfile.h" | |
31 | #include "objfiles.h" | |
4930751a | 32 | #include "dcache.h" |
c906108c | 33 | #include <signal.h> |
4e052eda | 34 | #include "regcache.h" |
b6591e8b | 35 | #include "gdbcore.h" |
424163ea | 36 | #include "target-descriptions.h" |
e1ac3328 | 37 | #include "gdbthread.h" |
b9db4ced | 38 | #include "solib.h" |
07b82ea5 | 39 | #include "exec.h" |
edb3359d | 40 | #include "inline-frame.h" |
2f4d8875 | 41 | #include "tracepoint.h" |
7313baad | 42 | #include "gdb/fileio.h" |
268a13a5 | 43 | #include "gdbsupport/agent.h" |
8de71aab | 44 | #include "auxv.h" |
a7068b60 | 45 | #include "target-debug.h" |
41fd2b0f PA |
46 | #include "top.h" |
47 | #include "event-top.h" | |
325fac50 | 48 | #include <algorithm> |
268a13a5 | 49 | #include "gdbsupport/byte-vector.h" |
e671cd59 | 50 | #include "terminal.h" |
d9f719f1 | 51 | #include <unordered_map> |
121b3efd | 52 | #include "target-connection.h" |
c906108c | 53 | |
f0f9ff95 TT |
54 | static void generic_tls_error (void) ATTRIBUTE_NORETURN; |
55 | ||
0a4f40a2 | 56 | static void default_terminal_info (struct target_ops *, const char *, int); |
c906108c | 57 | |
5009afc5 AS |
58 | static int default_watchpoint_addr_within_range (struct target_ops *, |
59 | CORE_ADDR, CORE_ADDR, int); | |
60 | ||
31568a15 TT |
61 | static int default_region_ok_for_hw_watchpoint (struct target_ops *, |
62 | CORE_ADDR, int); | |
e0d24f8d | 63 | |
a30bf1f1 | 64 | static void default_rcmd (struct target_ops *, const char *, struct ui_file *); |
a53f3625 | 65 | |
4229b31d TT |
66 | static ptid_t default_get_ada_task_ptid (struct target_ops *self, |
67 | long lwp, long tid); | |
68 | ||
098dba18 TT |
69 | static int default_follow_fork (struct target_ops *self, int follow_child, |
70 | int detach_fork); | |
71 | ||
8d657035 TT |
72 | static void default_mourn_inferior (struct target_ops *self); |
73 | ||
58a5184e TT |
74 | static int default_search_memory (struct target_ops *ops, |
75 | CORE_ADDR start_addr, | |
76 | ULONGEST search_space_len, | |
77 | const gdb_byte *pattern, | |
78 | ULONGEST pattern_len, | |
79 | CORE_ADDR *found_addrp); | |
80 | ||
936d2992 PA |
81 | static int default_verify_memory (struct target_ops *self, |
82 | const gdb_byte *data, | |
83 | CORE_ADDR memaddr, ULONGEST size); | |
84 | ||
c25c4a8b | 85 | static void tcomplain (void) ATTRIBUTE_NORETURN; |
c906108c | 86 | |
a121b7c1 | 87 | static struct target_ops *find_default_run_target (const char *); |
c906108c | 88 | |
0b5a2719 TT |
89 | static int dummy_find_memory_regions (struct target_ops *self, |
90 | find_memory_region_ftype ignore1, | |
91 | void *ignore2); | |
92 | ||
16f796b1 TT |
93 | static char *dummy_make_corefile_notes (struct target_ops *self, |
94 | bfd *ignore1, int *ignore2); | |
95 | ||
a068643d | 96 | static std::string default_pid_to_str (struct target_ops *ops, ptid_t ptid); |
770234d3 | 97 | |
fe31bf5b TT |
98 | static enum exec_direction_kind default_execution_direction |
99 | (struct target_ops *self); | |
100 | ||
d9f719f1 PA |
101 | /* Mapping between target_info objects (which have address identity) |
102 | and corresponding open/factory function/callback. Each add_target | |
103 | call adds one entry to this map, and registers a "target | |
104 | TARGET_NAME" command that when invoked calls the factory registered | |
105 | here. The target_info object is associated with the command via | |
106 | the command's context. */ | |
107 | static std::unordered_map<const target_info *, target_open_ftype *> | |
108 | target_factories; | |
c906108c | 109 | |
06b5b831 | 110 | /* The singleton debug target. */ |
c906108c | 111 | |
f6ac5f3d | 112 | static struct target_ops *the_debug_target; |
c906108c SS |
113 | |
114 | /* Top of target stack. */ | |
c906108c SS |
115 | /* The target structure we are currently using to talk to a process |
116 | or file or whatever "inferior" we have. */ | |
117 | ||
8b88a78e PA |
118 | target_ops * |
119 | current_top_target () | |
120 | { | |
5b6d1e4f | 121 | return current_inferior ()->top_target (); |
8b88a78e | 122 | } |
c906108c SS |
123 | |
124 | /* Command list for target. */ | |
125 | ||
126 | static struct cmd_list_element *targetlist = NULL; | |
127 | ||
491144b5 | 128 | /* True if we should trust readonly sections from the |
cf7a04e8 DJ |
129 | executable when reading memory. */ |
130 | ||
491144b5 | 131 | static bool trust_readonly = false; |
cf7a04e8 | 132 | |
8defab1a DJ |
133 | /* Nonzero if we should show true memory content including |
134 | memory breakpoint inserted by gdb. */ | |
135 | ||
136 | static int show_memory_breakpoints = 0; | |
137 | ||
d914c394 SS |
138 | /* These globals control whether GDB attempts to perform these |
139 | operations; they are useful for targets that need to prevent | |
30baf67b | 140 | inadvertent disruption, such as in non-stop mode. */ |
d914c394 | 141 | |
491144b5 | 142 | bool may_write_registers = true; |
d914c394 | 143 | |
491144b5 | 144 | bool may_write_memory = true; |
d914c394 | 145 | |
491144b5 | 146 | bool may_insert_breakpoints = true; |
d914c394 | 147 | |
491144b5 | 148 | bool may_insert_tracepoints = true; |
d914c394 | 149 | |
491144b5 | 150 | bool may_insert_fast_tracepoints = true; |
d914c394 | 151 | |
491144b5 | 152 | bool may_stop = true; |
d914c394 | 153 | |
c906108c SS |
154 | /* Non-zero if we want to see trace of target level stuff. */ |
155 | ||
ccce17b0 | 156 | static unsigned int targetdebug = 0; |
3cecbbbe TT |
157 | |
158 | static void | |
eb4c3f4a | 159 | set_targetdebug (const char *args, int from_tty, struct cmd_list_element *c) |
3cecbbbe | 160 | { |
f6ac5f3d PA |
161 | if (targetdebug) |
162 | push_target (the_debug_target); | |
163 | else | |
164 | unpush_target (the_debug_target); | |
3cecbbbe TT |
165 | } |
166 | ||
920d2a44 AC |
167 | static void |
168 | show_targetdebug (struct ui_file *file, int from_tty, | |
169 | struct cmd_list_element *c, const char *value) | |
170 | { | |
171 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
172 | } | |
c906108c | 173 | |
c906108c SS |
174 | /* The user just typed 'target' without the name of a target. */ |
175 | ||
c906108c | 176 | static void |
981a3fb3 | 177 | target_command (const char *arg, int from_tty) |
c906108c SS |
178 | { |
179 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
180 | gdb_stdout); | |
181 | } | |
182 | ||
c35b1492 PA |
183 | int |
184 | target_has_all_memory_1 (void) | |
185 | { | |
b6a8c27b | 186 | for (target_ops *t = current_top_target (); t != NULL; t = t->beneath ()) |
f6ac5f3d | 187 | if (t->has_all_memory ()) |
c35b1492 PA |
188 | return 1; |
189 | ||
190 | return 0; | |
191 | } | |
192 | ||
193 | int | |
194 | target_has_memory_1 (void) | |
195 | { | |
b6a8c27b | 196 | for (target_ops *t = current_top_target (); t != NULL; t = t->beneath ()) |
f6ac5f3d | 197 | if (t->has_memory ()) |
c35b1492 PA |
198 | return 1; |
199 | ||
200 | return 0; | |
201 | } | |
202 | ||
203 | int | |
204 | target_has_stack_1 (void) | |
205 | { | |
b6a8c27b | 206 | for (target_ops *t = current_top_target (); t != NULL; t = t->beneath ()) |
f6ac5f3d | 207 | if (t->has_stack ()) |
c35b1492 PA |
208 | return 1; |
209 | ||
210 | return 0; | |
211 | } | |
212 | ||
213 | int | |
214 | target_has_registers_1 (void) | |
215 | { | |
b6a8c27b | 216 | for (target_ops *t = current_top_target (); t != NULL; t = t->beneath ()) |
f6ac5f3d | 217 | if (t->has_registers ()) |
c35b1492 PA |
218 | return 1; |
219 | ||
220 | return 0; | |
221 | } | |
222 | ||
5018ce90 PA |
223 | bool |
224 | target_has_execution_1 (inferior *inf) | |
c35b1492 | 225 | { |
5b6d1e4f PA |
226 | for (target_ops *t = inf->top_target (); |
227 | t != nullptr; | |
228 | t = inf->find_target_beneath (t)) | |
5018ce90 PA |
229 | if (t->has_execution (inf)) |
230 | return true; | |
c35b1492 | 231 | |
5018ce90 | 232 | return false; |
c35b1492 PA |
233 | } |
234 | ||
aeaec162 TT |
235 | int |
236 | target_has_execution_current (void) | |
237 | { | |
5018ce90 | 238 | return target_has_execution_1 (current_inferior ()); |
aeaec162 TT |
239 | } |
240 | ||
8981c758 TT |
241 | /* This is used to implement the various target commands. */ |
242 | ||
243 | static void | |
eb4c3f4a | 244 | open_target (const char *args, int from_tty, struct cmd_list_element *command) |
8981c758 | 245 | { |
d9f719f1 PA |
246 | auto *ti = static_cast<target_info *> (get_cmd_context (command)); |
247 | target_open_ftype *func = target_factories[ti]; | |
8981c758 TT |
248 | |
249 | if (targetdebug) | |
d9f719f1 PA |
250 | fprintf_unfiltered (gdb_stdlog, "-> %s->open (...)\n", |
251 | ti->shortname); | |
8981c758 | 252 | |
d9f719f1 | 253 | func (args, from_tty); |
8981c758 TT |
254 | |
255 | if (targetdebug) | |
d9f719f1 PA |
256 | fprintf_unfiltered (gdb_stdlog, "<- %s->open (%s, %d)\n", |
257 | ti->shortname, args, from_tty); | |
8981c758 TT |
258 | } |
259 | ||
d9f719f1 | 260 | /* See target.h. */ |
c22a2b88 TT |
261 | |
262 | void | |
d9f719f1 PA |
263 | add_target (const target_info &t, target_open_ftype *func, |
264 | completer_ftype *completer) | |
c22a2b88 TT |
265 | { |
266 | struct cmd_list_element *c; | |
267 | ||
d9f719f1 PA |
268 | auto &func_slot = target_factories[&t]; |
269 | if (func_slot != nullptr) | |
270 | internal_error (__FILE__, __LINE__, | |
271 | _("target already added (\"%s\")."), t.shortname); | |
272 | func_slot = func; | |
c906108c SS |
273 | |
274 | if (targetlist == NULL) | |
1bedd215 AC |
275 | add_prefix_cmd ("target", class_run, target_command, _("\ |
276 | Connect to a target machine or process.\n\ | |
c906108c SS |
277 | The first argument is the type or protocol of the target machine.\n\ |
278 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
279 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 280 | `help target ' followed by the protocol name."), |
c906108c | 281 | &targetlist, "target ", 0, &cmdlist); |
d9f719f1 PA |
282 | c = add_cmd (t.shortname, no_class, t.doc, &targetlist); |
283 | set_cmd_context (c, (void *) &t); | |
8981c758 | 284 | set_cmd_sfunc (c, open_target); |
9852c492 YQ |
285 | if (completer != NULL) |
286 | set_cmd_completer (c, completer); | |
287 | } | |
288 | ||
b48d48eb MM |
289 | /* See target.h. */ |
290 | ||
291 | void | |
d9f719f1 | 292 | add_deprecated_target_alias (const target_info &tinfo, const char *alias) |
b48d48eb MM |
293 | { |
294 | struct cmd_list_element *c; | |
295 | char *alt; | |
296 | ||
297 | /* If we use add_alias_cmd, here, we do not get the deprecated warning, | |
298 | see PR cli/15104. */ | |
d9f719f1 | 299 | c = add_cmd (alias, no_class, tinfo.doc, &targetlist); |
8981c758 | 300 | set_cmd_sfunc (c, open_target); |
d9f719f1 PA |
301 | set_cmd_context (c, (void *) &tinfo); |
302 | alt = xstrprintf ("target %s", tinfo.shortname); | |
b48d48eb MM |
303 | deprecate_cmd (c, alt); |
304 | } | |
305 | ||
c906108c SS |
306 | /* Stub functions */ |
307 | ||
7d85a9c0 JB |
308 | void |
309 | target_kill (void) | |
310 | { | |
8b88a78e | 311 | current_top_target ()->kill (); |
7d85a9c0 JB |
312 | } |
313 | ||
11cf8741 | 314 | void |
9cbe5fff | 315 | target_load (const char *arg, int from_tty) |
11cf8741 | 316 | { |
4e5d721f | 317 | target_dcache_invalidate (); |
8b88a78e | 318 | current_top_target ()->load (arg, from_tty); |
11cf8741 JM |
319 | } |
320 | ||
223ffa71 | 321 | /* Define it. */ |
5842f62a | 322 | |
e671cd59 PA |
323 | target_terminal_state target_terminal::m_terminal_state |
324 | = target_terminal_state::is_ours; | |
5842f62a | 325 | |
223ffa71 | 326 | /* See target/target.h. */ |
5842f62a PA |
327 | |
328 | void | |
223ffa71 | 329 | target_terminal::init (void) |
5842f62a | 330 | { |
8b88a78e | 331 | current_top_target ()->terminal_init (); |
5842f62a | 332 | |
e671cd59 | 333 | m_terminal_state = target_terminal_state::is_ours; |
5842f62a PA |
334 | } |
335 | ||
223ffa71 | 336 | /* See target/target.h. */ |
2f99e8fc | 337 | |
d9d2d8b6 | 338 | void |
223ffa71 | 339 | target_terminal::inferior (void) |
d9d2d8b6 | 340 | { |
41fd2b0f PA |
341 | struct ui *ui = current_ui; |
342 | ||
d9d2d8b6 | 343 | /* A background resume (``run&'') should leave GDB in control of the |
3b12939d PA |
344 | terminal. */ |
345 | if (ui->prompt_state != PROMPT_BLOCKED) | |
d9d2d8b6 PA |
346 | return; |
347 | ||
215d3118 PA |
348 | /* Since we always run the inferior in the main console (unless "set |
349 | inferior-tty" is in effect), when some UI other than the main one | |
223ffa71 TT |
350 | calls target_terminal::inferior, then we leave the main UI's |
351 | terminal settings as is. */ | |
215d3118 PA |
352 | if (ui != main_ui) |
353 | return; | |
354 | ||
d9d2d8b6 PA |
355 | /* If GDB is resuming the inferior in the foreground, install |
356 | inferior's terminal modes. */ | |
e671cd59 PA |
357 | |
358 | struct inferior *inf = current_inferior (); | |
359 | ||
360 | if (inf->terminal_state != target_terminal_state::is_inferior) | |
361 | { | |
8b88a78e | 362 | current_top_target ()->terminal_inferior (); |
e671cd59 PA |
363 | inf->terminal_state = target_terminal_state::is_inferior; |
364 | } | |
365 | ||
366 | m_terminal_state = target_terminal_state::is_inferior; | |
367 | ||
368 | /* If the user hit C-c before, pretend that it was hit right | |
369 | here. */ | |
370 | if (check_quit_flag ()) | |
371 | target_pass_ctrlc (); | |
372 | } | |
373 | ||
374 | /* See target/target.h. */ | |
375 | ||
376 | void | |
377 | target_terminal::restore_inferior (void) | |
378 | { | |
379 | struct ui *ui = current_ui; | |
380 | ||
381 | /* See target_terminal::inferior(). */ | |
382 | if (ui->prompt_state != PROMPT_BLOCKED || ui != main_ui) | |
383 | return; | |
384 | ||
385 | /* Restore the terminal settings of inferiors that were in the | |
386 | foreground but are now ours_for_output due to a temporary | |
387 | target_target::ours_for_output() call. */ | |
388 | ||
389 | { | |
390 | scoped_restore_current_inferior restore_inferior; | |
e671cd59 | 391 | |
84b68c77 | 392 | for (::inferior *inf : all_inferiors ()) |
e671cd59 PA |
393 | { |
394 | if (inf->terminal_state == target_terminal_state::is_ours_for_output) | |
395 | { | |
396 | set_current_inferior (inf); | |
8b88a78e | 397 | current_top_target ()->terminal_inferior (); |
e671cd59 PA |
398 | inf->terminal_state = target_terminal_state::is_inferior; |
399 | } | |
400 | } | |
401 | } | |
402 | ||
403 | m_terminal_state = target_terminal_state::is_inferior; | |
93692b58 PA |
404 | |
405 | /* If the user hit C-c before, pretend that it was hit right | |
406 | here. */ | |
407 | if (check_quit_flag ()) | |
408 | target_pass_ctrlc (); | |
5842f62a PA |
409 | } |
410 | ||
e671cd59 PA |
411 | /* Switch terminal state to DESIRED_STATE, either is_ours, or |
412 | is_ours_for_output. */ | |
413 | ||
414 | static void | |
415 | target_terminal_is_ours_kind (target_terminal_state desired_state) | |
416 | { | |
417 | scoped_restore_current_inferior restore_inferior; | |
e671cd59 PA |
418 | |
419 | /* Must do this in two passes. First, have all inferiors save the | |
420 | current terminal settings. Then, after all inferiors have add a | |
421 | chance to safely save the terminal settings, restore GDB's | |
422 | terminal settings. */ | |
423 | ||
08036331 | 424 | for (inferior *inf : all_inferiors ()) |
e671cd59 PA |
425 | { |
426 | if (inf->terminal_state == target_terminal_state::is_inferior) | |
427 | { | |
428 | set_current_inferior (inf); | |
8b88a78e | 429 | current_top_target ()->terminal_save_inferior (); |
e671cd59 PA |
430 | } |
431 | } | |
432 | ||
08036331 | 433 | for (inferior *inf : all_inferiors ()) |
e671cd59 PA |
434 | { |
435 | /* Note we don't check is_inferior here like above because we | |
436 | need to handle 'is_ours_for_output -> is_ours' too. Careful | |
437 | to never transition from 'is_ours' to 'is_ours_for_output', | |
438 | though. */ | |
439 | if (inf->terminal_state != target_terminal_state::is_ours | |
440 | && inf->terminal_state != desired_state) | |
441 | { | |
442 | set_current_inferior (inf); | |
443 | if (desired_state == target_terminal_state::is_ours) | |
8b88a78e | 444 | current_top_target ()->terminal_ours (); |
e671cd59 | 445 | else if (desired_state == target_terminal_state::is_ours_for_output) |
8b88a78e | 446 | current_top_target ()->terminal_ours_for_output (); |
e671cd59 PA |
447 | else |
448 | gdb_assert_not_reached ("unhandled desired state"); | |
449 | inf->terminal_state = desired_state; | |
450 | } | |
451 | } | |
452 | } | |
453 | ||
223ffa71 | 454 | /* See target/target.h. */ |
5842f62a PA |
455 | |
456 | void | |
223ffa71 | 457 | target_terminal::ours () |
5842f62a | 458 | { |
41fd2b0f PA |
459 | struct ui *ui = current_ui; |
460 | ||
223ffa71 | 461 | /* See target_terminal::inferior. */ |
215d3118 PA |
462 | if (ui != main_ui) |
463 | return; | |
464 | ||
e671cd59 | 465 | if (m_terminal_state == target_terminal_state::is_ours) |
5842f62a PA |
466 | return; |
467 | ||
e671cd59 PA |
468 | target_terminal_is_ours_kind (target_terminal_state::is_ours); |
469 | m_terminal_state = target_terminal_state::is_ours; | |
5842f62a PA |
470 | } |
471 | ||
223ffa71 | 472 | /* See target/target.h. */ |
5842f62a PA |
473 | |
474 | void | |
223ffa71 | 475 | target_terminal::ours_for_output () |
5842f62a | 476 | { |
215d3118 PA |
477 | struct ui *ui = current_ui; |
478 | ||
223ffa71 | 479 | /* See target_terminal::inferior. */ |
215d3118 PA |
480 | if (ui != main_ui) |
481 | return; | |
482 | ||
e671cd59 | 483 | if (!target_terminal::is_inferior ()) |
5842f62a | 484 | return; |
e671cd59 PA |
485 | |
486 | target_terminal_is_ours_kind (target_terminal_state::is_ours_for_output); | |
487 | target_terminal::m_terminal_state = target_terminal_state::is_ours_for_output; | |
d9d2d8b6 | 488 | } |
136d6dae | 489 | |
223ffa71 TT |
490 | /* See target/target.h. */ |
491 | ||
492 | void | |
493 | target_terminal::info (const char *arg, int from_tty) | |
494 | { | |
8b88a78e | 495 | current_top_target ()->terminal_info (arg, from_tty); |
223ffa71 TT |
496 | } |
497 | ||
b0ed115f TT |
498 | /* See target.h. */ |
499 | ||
20f0d60d | 500 | bool |
b0ed115f TT |
501 | target_supports_terminal_ours (void) |
502 | { | |
5b6d1e4f PA |
503 | /* The current top target is the target at the top of the target |
504 | stack of the current inferior. While normally there's always an | |
505 | inferior, we must check for nullptr here because we can get here | |
506 | very early during startup, before the initial inferior is first | |
507 | created. */ | |
508 | inferior *inf = current_inferior (); | |
20f0d60d | 509 | |
5b6d1e4f | 510 | if (inf == nullptr) |
20f0d60d | 511 | return false; |
5b6d1e4f | 512 | return inf->top_target ()->supports_terminal_ours (); |
b0ed115f TT |
513 | } |
514 | ||
c906108c | 515 | static void |
fba45db2 | 516 | tcomplain (void) |
c906108c | 517 | { |
8a3fe4f8 | 518 | error (_("You can't do that when your target is `%s'"), |
8b88a78e | 519 | current_top_target ()->shortname ()); |
c906108c SS |
520 | } |
521 | ||
522 | void | |
fba45db2 | 523 | noprocess (void) |
c906108c | 524 | { |
8a3fe4f8 | 525 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
526 | } |
527 | ||
c906108c | 528 | static void |
0a4f40a2 | 529 | default_terminal_info (struct target_ops *self, const char *args, int from_tty) |
c906108c | 530 | { |
a3f17187 | 531 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
532 | } |
533 | ||
0ef643c8 JB |
534 | /* A default implementation for the to_get_ada_task_ptid target method. |
535 | ||
536 | This function builds the PTID by using both LWP and TID as part of | |
537 | the PTID lwp and tid elements. The pid used is the pid of the | |
538 | inferior_ptid. */ | |
539 | ||
2c0b251b | 540 | static ptid_t |
1e6b91a4 | 541 | default_get_ada_task_ptid (struct target_ops *self, long lwp, long tid) |
0ef643c8 | 542 | { |
e99b03dc | 543 | return ptid_t (inferior_ptid.pid (), lwp, tid); |
0ef643c8 JB |
544 | } |
545 | ||
32231432 | 546 | static enum exec_direction_kind |
4c612759 | 547 | default_execution_direction (struct target_ops *self) |
32231432 PA |
548 | { |
549 | if (!target_can_execute_reverse) | |
550 | return EXEC_FORWARD; | |
551 | else if (!target_can_async_p ()) | |
552 | return EXEC_FORWARD; | |
553 | else | |
554 | gdb_assert_not_reached ("\ | |
555 | to_execution_direction must be implemented for reverse async"); | |
556 | } | |
557 | ||
a1740ee1 | 558 | /* See target.h. */ |
c906108c | 559 | |
5b6d1e4f PA |
560 | void |
561 | decref_target (target_ops *t) | |
562 | { | |
563 | t->decref (); | |
564 | if (t->refcount () == 0) | |
121b3efd PA |
565 | { |
566 | if (t->stratum () == process_stratum) | |
567 | connection_list_remove (as_process_stratum_target (t)); | |
568 | target_close (t); | |
569 | } | |
5b6d1e4f PA |
570 | } |
571 | ||
572 | /* See target.h. */ | |
573 | ||
b26a4dcb | 574 | void |
a1740ee1 | 575 | target_stack::push (target_ops *t) |
c906108c | 576 | { |
5b6d1e4f PA |
577 | t->incref (); |
578 | ||
66b4deae PA |
579 | strata stratum = t->stratum (); |
580 | ||
121b3efd PA |
581 | if (stratum == process_stratum) |
582 | connection_list_add (as_process_stratum_target (t)); | |
583 | ||
5b6d1e4f PA |
584 | /* If there's already a target at this stratum, remove it. */ |
585 | ||
66b4deae | 586 | if (m_stack[stratum] != NULL) |
494409bb | 587 | unpush (m_stack[stratum]); |
c906108c | 588 | |
a1740ee1 | 589 | /* Now add the new one. */ |
66b4deae | 590 | m_stack[stratum] = t; |
5d502164 | 591 | |
66b4deae PA |
592 | if (m_top < stratum) |
593 | m_top = stratum; | |
a1740ee1 PA |
594 | } |
595 | ||
596 | /* See target.h. */ | |
c906108c | 597 | |
a1740ee1 PA |
598 | void |
599 | push_target (struct target_ops *t) | |
600 | { | |
5b6d1e4f | 601 | current_inferior ()->push_target (t); |
c906108c SS |
602 | } |
603 | ||
5b6d1e4f | 604 | /* See target.h. */ |
dea57a62 TT |
605 | |
606 | void | |
607 | push_target (target_ops_up &&t) | |
608 | { | |
5b6d1e4f | 609 | current_inferior ()->push_target (t.get ()); |
dea57a62 TT |
610 | t.release (); |
611 | } | |
612 | ||
a1740ee1 | 613 | /* See target.h. */ |
c906108c SS |
614 | |
615 | int | |
fba45db2 | 616 | unpush_target (struct target_ops *t) |
a1740ee1 | 617 | { |
5b6d1e4f | 618 | return current_inferior ()->unpush_target (t); |
a1740ee1 PA |
619 | } |
620 | ||
621 | /* See target.h. */ | |
622 | ||
623 | bool | |
624 | target_stack::unpush (target_ops *t) | |
c906108c | 625 | { |
1688cb29 TT |
626 | gdb_assert (t != NULL); |
627 | ||
66b4deae PA |
628 | strata stratum = t->stratum (); |
629 | ||
630 | if (stratum == dummy_stratum) | |
c8d104ad | 631 | internal_error (__FILE__, __LINE__, |
9b20d036 | 632 | _("Attempt to unpush the dummy target")); |
c8d104ad | 633 | |
a1740ee1 PA |
634 | /* Look for the specified target. Note that a target can only occur |
635 | once in the target stack. */ | |
c906108c | 636 | |
66b4deae | 637 | if (m_stack[stratum] != t) |
258b763a | 638 | { |
a1740ee1 PA |
639 | /* If T wasn't pushed, quit. Only open targets should be |
640 | closed. */ | |
641 | return false; | |
258b763a | 642 | } |
c906108c | 643 | |
c378eb4e | 644 | /* Unchain the target. */ |
66b4deae | 645 | m_stack[stratum] = NULL; |
a1740ee1 | 646 | |
66b4deae PA |
647 | if (m_top == stratum) |
648 | m_top = t->beneath ()->stratum (); | |
c906108c | 649 | |
5b6d1e4f PA |
650 | /* Finally close the target, if there are no inferiors |
651 | referencing this target still. Note we do this after unchaining, | |
652 | so any target method calls from within the target_close | |
653 | implementation don't end up in T anymore. Do leave the target | |
654 | open if we have are other inferiors referencing this target | |
655 | still. */ | |
656 | decref_target (t); | |
305436e0 | 657 | |
a1740ee1 | 658 | return true; |
c906108c SS |
659 | } |
660 | ||
915ef8b1 PA |
661 | /* Unpush TARGET and assert that it worked. */ |
662 | ||
663 | static void | |
664 | unpush_target_and_assert (struct target_ops *target) | |
665 | { | |
666 | if (!unpush_target (target)) | |
667 | { | |
668 | fprintf_unfiltered (gdb_stderr, | |
669 | "pop_all_targets couldn't find target %s\n", | |
f6ac5f3d | 670 | target->shortname ()); |
915ef8b1 PA |
671 | internal_error (__FILE__, __LINE__, |
672 | _("failed internal consistency check")); | |
673 | } | |
674 | } | |
675 | ||
aa76d38d | 676 | void |
460014f5 | 677 | pop_all_targets_above (enum strata above_stratum) |
aa76d38d | 678 | { |
66b4deae | 679 | while ((int) (current_top_target ()->stratum ()) > (int) above_stratum) |
8b88a78e | 680 | unpush_target_and_assert (current_top_target ()); |
915ef8b1 PA |
681 | } |
682 | ||
683 | /* See target.h. */ | |
684 | ||
685 | void | |
686 | pop_all_targets_at_and_above (enum strata stratum) | |
687 | { | |
66b4deae | 688 | while ((int) (current_top_target ()->stratum ()) >= (int) stratum) |
8b88a78e | 689 | unpush_target_and_assert (current_top_target ()); |
aa76d38d PA |
690 | } |
691 | ||
87ab71f0 | 692 | void |
460014f5 | 693 | pop_all_targets (void) |
87ab71f0 | 694 | { |
460014f5 | 695 | pop_all_targets_above (dummy_stratum); |
87ab71f0 PA |
696 | } |
697 | ||
5b6d1e4f PA |
698 | /* Return true if T is now pushed in the current inferior's target |
699 | stack. Return false otherwise. */ | |
c0edd9ed | 700 | |
5b6d1e4f PA |
701 | bool |
702 | target_is_pushed (target_ops *t) | |
c0edd9ed | 703 | { |
5b6d1e4f | 704 | return current_inferior ()->target_is_pushed (t); |
c0edd9ed JK |
705 | } |
706 | ||
f0f9ff95 TT |
707 | /* Default implementation of to_get_thread_local_address. */ |
708 | ||
709 | static void | |
710 | generic_tls_error (void) | |
711 | { | |
712 | throw_error (TLS_GENERIC_ERROR, | |
713 | _("Cannot find thread-local variables on this target")); | |
714 | } | |
715 | ||
72f5cf0e | 716 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
717 | current thread's thread-local storage with offset OFFSET. */ |
718 | CORE_ADDR | |
719 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
720 | { | |
721 | volatile CORE_ADDR addr = 0; | |
8b88a78e | 722 | struct target_ops *target = current_top_target (); |
6e056c81 | 723 | struct gdbarch *gdbarch = target_gdbarch (); |
9e35dae4 | 724 | |
6e056c81 | 725 | if (gdbarch_fetch_tls_load_module_address_p (gdbarch)) |
9e35dae4 DJ |
726 | { |
727 | ptid_t ptid = inferior_ptid; | |
9e35dae4 | 728 | |
a70b8144 | 729 | try |
9e35dae4 DJ |
730 | { |
731 | CORE_ADDR lm_addr; | |
732 | ||
733 | /* Fetch the load module address for this objfile. */ | |
6e056c81 | 734 | lm_addr = gdbarch_fetch_tls_load_module_address (gdbarch, |
9e35dae4 | 735 | objfile); |
9e35dae4 | 736 | |
6e056c81 JB |
737 | if (gdbarch_get_thread_local_address_p (gdbarch)) |
738 | addr = gdbarch_get_thread_local_address (gdbarch, ptid, lm_addr, | |
739 | offset); | |
740 | else | |
741 | addr = target->get_thread_local_address (ptid, lm_addr, offset); | |
9e35dae4 DJ |
742 | } |
743 | /* If an error occurred, print TLS related messages here. Otherwise, | |
744 | throw the error to some higher catcher. */ | |
230d2906 | 745 | catch (const gdb_exception &ex) |
9e35dae4 DJ |
746 | { |
747 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
748 | ||
749 | switch (ex.error) | |
750 | { | |
751 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
3e43a32a MS |
752 | error (_("Cannot find thread-local variables " |
753 | "in this thread library.")); | |
9e35dae4 DJ |
754 | break; |
755 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
756 | if (objfile_is_library) | |
757 | error (_("Cannot find shared library `%s' in dynamic" | |
4262abfb | 758 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
759 | else |
760 | error (_("Cannot find executable file `%s' in dynamic" | |
4262abfb | 761 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
762 | break; |
763 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
764 | if (objfile_is_library) | |
765 | error (_("The inferior has not yet allocated storage for" | |
766 | " thread-local variables in\n" | |
767 | "the shared library `%s'\n" | |
768 | "for %s"), | |
a068643d TT |
769 | objfile_name (objfile), |
770 | target_pid_to_str (ptid).c_str ()); | |
9e35dae4 DJ |
771 | else |
772 | error (_("The inferior has not yet allocated storage for" | |
773 | " thread-local variables in\n" | |
774 | "the executable `%s'\n" | |
775 | "for %s"), | |
a068643d TT |
776 | objfile_name (objfile), |
777 | target_pid_to_str (ptid).c_str ()); | |
9e35dae4 DJ |
778 | break; |
779 | case TLS_GENERIC_ERROR: | |
780 | if (objfile_is_library) | |
781 | error (_("Cannot find thread-local storage for %s, " | |
782 | "shared library %s:\n%s"), | |
a068643d | 783 | target_pid_to_str (ptid).c_str (), |
3d6e9d23 | 784 | objfile_name (objfile), ex.what ()); |
9e35dae4 DJ |
785 | else |
786 | error (_("Cannot find thread-local storage for %s, " | |
787 | "executable file %s:\n%s"), | |
a068643d | 788 | target_pid_to_str (ptid).c_str (), |
3d6e9d23 | 789 | objfile_name (objfile), ex.what ()); |
9e35dae4 DJ |
790 | break; |
791 | default: | |
eedc3f4f | 792 | throw; |
9e35dae4 DJ |
793 | break; |
794 | } | |
795 | } | |
796 | } | |
9e35dae4 DJ |
797 | else |
798 | error (_("Cannot find thread-local variables on this target")); | |
799 | ||
800 | return addr; | |
801 | } | |
802 | ||
6be7b56e | 803 | const char * |
01cb8804 | 804 | target_xfer_status_to_string (enum target_xfer_status status) |
6be7b56e PA |
805 | { |
806 | #define CASE(X) case X: return #X | |
01cb8804 | 807 | switch (status) |
6be7b56e PA |
808 | { |
809 | CASE(TARGET_XFER_E_IO); | |
bc113b4e | 810 | CASE(TARGET_XFER_UNAVAILABLE); |
6be7b56e PA |
811 | default: |
812 | return "<unknown>"; | |
813 | } | |
814 | #undef CASE | |
815 | }; | |
816 | ||
817 | ||
c906108c SS |
818 | #undef MIN |
819 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
820 | ||
821 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
822 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
823 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
824 | is responsible for freeing it. Return the number of bytes successfully | |
825 | read. */ | |
826 | ||
827 | int | |
e83e4e24 TT |
828 | target_read_string (CORE_ADDR memaddr, gdb::unique_xmalloc_ptr<char> *string, |
829 | int len, int *errnop) | |
c906108c | 830 | { |
c2e8b827 | 831 | int tlen, offset, i; |
1b0ba102 | 832 | gdb_byte buf[4]; |
c906108c SS |
833 | int errcode = 0; |
834 | char *buffer; | |
835 | int buffer_allocated; | |
836 | char *bufptr; | |
837 | unsigned int nbytes_read = 0; | |
838 | ||
6217bf3e MS |
839 | gdb_assert (string); |
840 | ||
c906108c SS |
841 | /* Small for testing. */ |
842 | buffer_allocated = 4; | |
224c3ddb | 843 | buffer = (char *) xmalloc (buffer_allocated); |
c906108c SS |
844 | bufptr = buffer; |
845 | ||
c906108c SS |
846 | while (len > 0) |
847 | { | |
848 | tlen = MIN (len, 4 - (memaddr & 3)); | |
849 | offset = memaddr & 3; | |
850 | ||
1b0ba102 | 851 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
852 | if (errcode != 0) |
853 | { | |
854 | /* The transfer request might have crossed the boundary to an | |
c378eb4e | 855 | unallocated region of memory. Retry the transfer, requesting |
c906108c SS |
856 | a single byte. */ |
857 | tlen = 1; | |
858 | offset = 0; | |
b8eb5af0 | 859 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
860 | if (errcode != 0) |
861 | goto done; | |
862 | } | |
863 | ||
864 | if (bufptr - buffer + tlen > buffer_allocated) | |
865 | { | |
866 | unsigned int bytes; | |
5d502164 | 867 | |
c906108c SS |
868 | bytes = bufptr - buffer; |
869 | buffer_allocated *= 2; | |
224c3ddb | 870 | buffer = (char *) xrealloc (buffer, buffer_allocated); |
c906108c SS |
871 | bufptr = buffer + bytes; |
872 | } | |
873 | ||
874 | for (i = 0; i < tlen; i++) | |
875 | { | |
876 | *bufptr++ = buf[i + offset]; | |
877 | if (buf[i + offset] == '\000') | |
878 | { | |
879 | nbytes_read += i + 1; | |
880 | goto done; | |
881 | } | |
882 | } | |
883 | ||
884 | memaddr += tlen; | |
885 | len -= tlen; | |
886 | nbytes_read += tlen; | |
887 | } | |
c5aa993b | 888 | done: |
e83e4e24 | 889 | string->reset (buffer); |
c906108c SS |
890 | if (errnop != NULL) |
891 | *errnop = errcode; | |
c906108c SS |
892 | return nbytes_read; |
893 | } | |
894 | ||
07b82ea5 PA |
895 | struct target_section_table * |
896 | target_get_section_table (struct target_ops *target) | |
897 | { | |
f6ac5f3d | 898 | return target->get_section_table (); |
07b82ea5 PA |
899 | } |
900 | ||
8db32d44 | 901 | /* Find a section containing ADDR. */ |
07b82ea5 | 902 | |
0542c86d | 903 | struct target_section * |
8db32d44 AC |
904 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) |
905 | { | |
07b82ea5 | 906 | struct target_section_table *table = target_get_section_table (target); |
0542c86d | 907 | struct target_section *secp; |
07b82ea5 PA |
908 | |
909 | if (table == NULL) | |
910 | return NULL; | |
911 | ||
912 | for (secp = table->sections; secp < table->sections_end; secp++) | |
8db32d44 AC |
913 | { |
914 | if (addr >= secp->addr && addr < secp->endaddr) | |
915 | return secp; | |
916 | } | |
917 | return NULL; | |
918 | } | |
919 | ||
0fec99e8 PA |
920 | |
921 | /* Helper for the memory xfer routines. Checks the attributes of the | |
922 | memory region of MEMADDR against the read or write being attempted. | |
923 | If the access is permitted returns true, otherwise returns false. | |
924 | REGION_P is an optional output parameter. If not-NULL, it is | |
925 | filled with a pointer to the memory region of MEMADDR. REG_LEN | |
926 | returns LEN trimmed to the end of the region. This is how much the | |
927 | caller can continue requesting, if the access is permitted. A | |
928 | single xfer request must not straddle memory region boundaries. */ | |
929 | ||
930 | static int | |
931 | memory_xfer_check_region (gdb_byte *readbuf, const gdb_byte *writebuf, | |
932 | ULONGEST memaddr, ULONGEST len, ULONGEST *reg_len, | |
933 | struct mem_region **region_p) | |
934 | { | |
935 | struct mem_region *region; | |
936 | ||
937 | region = lookup_mem_region (memaddr); | |
938 | ||
939 | if (region_p != NULL) | |
940 | *region_p = region; | |
941 | ||
942 | switch (region->attrib.mode) | |
943 | { | |
944 | case MEM_RO: | |
945 | if (writebuf != NULL) | |
946 | return 0; | |
947 | break; | |
948 | ||
949 | case MEM_WO: | |
950 | if (readbuf != NULL) | |
951 | return 0; | |
952 | break; | |
953 | ||
954 | case MEM_FLASH: | |
955 | /* We only support writing to flash during "load" for now. */ | |
956 | if (writebuf != NULL) | |
957 | error (_("Writing to flash memory forbidden in this context")); | |
958 | break; | |
959 | ||
960 | case MEM_NONE: | |
961 | return 0; | |
962 | } | |
963 | ||
964 | /* region->hi == 0 means there's no upper bound. */ | |
965 | if (memaddr + len < region->hi || region->hi == 0) | |
966 | *reg_len = len; | |
967 | else | |
968 | *reg_len = region->hi - memaddr; | |
969 | ||
970 | return 1; | |
971 | } | |
972 | ||
9f713294 YQ |
973 | /* Read memory from more than one valid target. A core file, for |
974 | instance, could have some of memory but delegate other bits to | |
975 | the target below it. So, we must manually try all targets. */ | |
976 | ||
cc9f16aa | 977 | enum target_xfer_status |
17fde6d0 | 978 | raw_memory_xfer_partial (struct target_ops *ops, gdb_byte *readbuf, |
9b409511 YQ |
979 | const gdb_byte *writebuf, ULONGEST memaddr, LONGEST len, |
980 | ULONGEST *xfered_len) | |
9f713294 | 981 | { |
9b409511 | 982 | enum target_xfer_status res; |
9f713294 YQ |
983 | |
984 | do | |
985 | { | |
f6ac5f3d PA |
986 | res = ops->xfer_partial (TARGET_OBJECT_MEMORY, NULL, |
987 | readbuf, writebuf, memaddr, len, | |
988 | xfered_len); | |
9b409511 | 989 | if (res == TARGET_XFER_OK) |
9f713294 YQ |
990 | break; |
991 | ||
633785ff | 992 | /* Stop if the target reports that the memory is not available. */ |
bc113b4e | 993 | if (res == TARGET_XFER_UNAVAILABLE) |
633785ff MM |
994 | break; |
995 | ||
9f713294 YQ |
996 | /* We want to continue past core files to executables, but not |
997 | past a running target's memory. */ | |
f6ac5f3d | 998 | if (ops->has_all_memory ()) |
9f713294 YQ |
999 | break; |
1000 | ||
b6a8c27b | 1001 | ops = ops->beneath (); |
9f713294 YQ |
1002 | } |
1003 | while (ops != NULL); | |
1004 | ||
0f26cec1 PA |
1005 | /* The cache works at the raw memory level. Make sure the cache |
1006 | gets updated with raw contents no matter what kind of memory | |
1007 | object was originally being written. Note we do write-through | |
1008 | first, so that if it fails, we don't write to the cache contents | |
1009 | that never made it to the target. */ | |
1010 | if (writebuf != NULL | |
d7e15655 | 1011 | && inferior_ptid != null_ptid |
0f26cec1 PA |
1012 | && target_dcache_init_p () |
1013 | && (stack_cache_enabled_p () || code_cache_enabled_p ())) | |
1014 | { | |
1015 | DCACHE *dcache = target_dcache_get (); | |
1016 | ||
1017 | /* Note that writing to an area of memory which wasn't present | |
1018 | in the cache doesn't cause it to be loaded in. */ | |
1019 | dcache_update (dcache, res, memaddr, writebuf, *xfered_len); | |
1020 | } | |
1021 | ||
9f713294 YQ |
1022 | return res; |
1023 | } | |
1024 | ||
7f79c47e DE |
1025 | /* Perform a partial memory transfer. |
1026 | For docs see target.h, to_xfer_partial. */ | |
cf7a04e8 | 1027 | |
9b409511 | 1028 | static enum target_xfer_status |
f0ba3972 | 1029 | memory_xfer_partial_1 (struct target_ops *ops, enum target_object object, |
17fde6d0 | 1030 | gdb_byte *readbuf, const gdb_byte *writebuf, ULONGEST memaddr, |
9b409511 | 1031 | ULONGEST len, ULONGEST *xfered_len) |
0779438d | 1032 | { |
9b409511 | 1033 | enum target_xfer_status res; |
0fec99e8 | 1034 | ULONGEST reg_len; |
cf7a04e8 | 1035 | struct mem_region *region; |
4e5d721f | 1036 | struct inferior *inf; |
cf7a04e8 | 1037 | |
07b82ea5 PA |
1038 | /* For accesses to unmapped overlay sections, read directly from |
1039 | files. Must do this first, as MEMADDR may need adjustment. */ | |
1040 | if (readbuf != NULL && overlay_debugging) | |
1041 | { | |
1042 | struct obj_section *section = find_pc_overlay (memaddr); | |
5d502164 | 1043 | |
07b82ea5 PA |
1044 | if (pc_in_unmapped_range (memaddr, section)) |
1045 | { | |
1046 | struct target_section_table *table | |
1047 | = target_get_section_table (ops); | |
1048 | const char *section_name = section->the_bfd_section->name; | |
5d502164 | 1049 | |
07b82ea5 PA |
1050 | memaddr = overlay_mapped_address (memaddr, section); |
1051 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1052 | memaddr, len, xfered_len, |
07b82ea5 PA |
1053 | table->sections, |
1054 | table->sections_end, | |
1055 | section_name); | |
1056 | } | |
1057 | } | |
1058 | ||
1059 | /* Try the executable files, if "trust-readonly-sections" is set. */ | |
cf7a04e8 DJ |
1060 | if (readbuf != NULL && trust_readonly) |
1061 | { | |
0542c86d | 1062 | struct target_section *secp; |
07b82ea5 | 1063 | struct target_section_table *table; |
cf7a04e8 DJ |
1064 | |
1065 | secp = target_section_by_addr (ops, memaddr); | |
1066 | if (secp != NULL | |
fd361982 | 1067 | && (bfd_section_flags (secp->the_bfd_section) & SEC_READONLY)) |
07b82ea5 PA |
1068 | { |
1069 | table = target_get_section_table (ops); | |
1070 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1071 | memaddr, len, xfered_len, |
07b82ea5 PA |
1072 | table->sections, |
1073 | table->sections_end, | |
1074 | NULL); | |
1075 | } | |
98646950 UW |
1076 | } |
1077 | ||
cf7a04e8 | 1078 | /* Try GDB's internal data cache. */ |
cf7a04e8 | 1079 | |
0fec99e8 PA |
1080 | if (!memory_xfer_check_region (readbuf, writebuf, memaddr, len, ®_len, |
1081 | ®ion)) | |
1082 | return TARGET_XFER_E_IO; | |
cf7a04e8 | 1083 | |
d7e15655 | 1084 | if (inferior_ptid != null_ptid) |
00431a78 | 1085 | inf = current_inferior (); |
6c95b8df PA |
1086 | else |
1087 | inf = NULL; | |
4e5d721f DE |
1088 | |
1089 | if (inf != NULL | |
0f26cec1 | 1090 | && readbuf != NULL |
2f4d8875 PA |
1091 | /* The dcache reads whole cache lines; that doesn't play well |
1092 | with reading from a trace buffer, because reading outside of | |
1093 | the collected memory range fails. */ | |
1094 | && get_traceframe_number () == -1 | |
4e5d721f | 1095 | && (region->attrib.cache |
29453a14 YQ |
1096 | || (stack_cache_enabled_p () && object == TARGET_OBJECT_STACK_MEMORY) |
1097 | || (code_cache_enabled_p () && object == TARGET_OBJECT_CODE_MEMORY))) | |
cf7a04e8 | 1098 | { |
2a2f9fe4 YQ |
1099 | DCACHE *dcache = target_dcache_get_or_init (); |
1100 | ||
0f26cec1 PA |
1101 | return dcache_read_memory_partial (ops, dcache, memaddr, readbuf, |
1102 | reg_len, xfered_len); | |
cf7a04e8 DJ |
1103 | } |
1104 | ||
1105 | /* If none of those methods found the memory we wanted, fall back | |
1106 | to a target partial transfer. Normally a single call to | |
1107 | to_xfer_partial is enough; if it doesn't recognize an object | |
1108 | it will call the to_xfer_partial of the next target down. | |
1109 | But for memory this won't do. Memory is the only target | |
9b409511 YQ |
1110 | object which can be read from more than one valid target. |
1111 | A core file, for instance, could have some of memory but | |
1112 | delegate other bits to the target below it. So, we must | |
1113 | manually try all targets. */ | |
1114 | ||
1115 | res = raw_memory_xfer_partial (ops, readbuf, writebuf, memaddr, reg_len, | |
1116 | xfered_len); | |
cf7a04e8 DJ |
1117 | |
1118 | /* If we still haven't got anything, return the last error. We | |
1119 | give up. */ | |
1120 | return res; | |
0779438d AC |
1121 | } |
1122 | ||
f0ba3972 PA |
1123 | /* Perform a partial memory transfer. For docs see target.h, |
1124 | to_xfer_partial. */ | |
1125 | ||
9b409511 | 1126 | static enum target_xfer_status |
f0ba3972 | 1127 | memory_xfer_partial (struct target_ops *ops, enum target_object object, |
9b409511 YQ |
1128 | gdb_byte *readbuf, const gdb_byte *writebuf, |
1129 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) | |
f0ba3972 | 1130 | { |
9b409511 | 1131 | enum target_xfer_status res; |
f0ba3972 PA |
1132 | |
1133 | /* Zero length requests are ok and require no work. */ | |
1134 | if (len == 0) | |
9b409511 | 1135 | return TARGET_XFER_EOF; |
f0ba3972 | 1136 | |
a738ea1d YQ |
1137 | memaddr = address_significant (target_gdbarch (), memaddr); |
1138 | ||
f0ba3972 PA |
1139 | /* Fill in READBUF with breakpoint shadows, or WRITEBUF with |
1140 | breakpoint insns, thus hiding out from higher layers whether | |
1141 | there are software breakpoints inserted in the code stream. */ | |
1142 | if (readbuf != NULL) | |
1143 | { | |
9b409511 YQ |
1144 | res = memory_xfer_partial_1 (ops, object, readbuf, NULL, memaddr, len, |
1145 | xfered_len); | |
f0ba3972 | 1146 | |
9b409511 | 1147 | if (res == TARGET_XFER_OK && !show_memory_breakpoints) |
c63528fc | 1148 | breakpoint_xfer_memory (readbuf, NULL, NULL, memaddr, *xfered_len); |
f0ba3972 PA |
1149 | } |
1150 | else | |
1151 | { | |
67c059c2 AB |
1152 | /* A large write request is likely to be partially satisfied |
1153 | by memory_xfer_partial_1. We will continually malloc | |
1154 | and free a copy of the entire write request for breakpoint | |
1155 | shadow handling even though we only end up writing a small | |
09c98b44 DB |
1156 | subset of it. Cap writes to a limit specified by the target |
1157 | to mitigate this. */ | |
f6ac5f3d | 1158 | len = std::min (ops->get_memory_xfer_limit (), len); |
67c059c2 | 1159 | |
26fcd5d7 TT |
1160 | gdb::byte_vector buf (writebuf, writebuf + len); |
1161 | breakpoint_xfer_memory (NULL, buf.data (), writebuf, memaddr, len); | |
1162 | res = memory_xfer_partial_1 (ops, object, NULL, buf.data (), memaddr, len, | |
9b409511 | 1163 | xfered_len); |
f0ba3972 PA |
1164 | } |
1165 | ||
1166 | return res; | |
1167 | } | |
1168 | ||
cb85b21b TT |
1169 | scoped_restore_tmpl<int> |
1170 | make_scoped_restore_show_memory_breakpoints (int show) | |
8defab1a | 1171 | { |
cb85b21b | 1172 | return make_scoped_restore (&show_memory_breakpoints, show); |
8defab1a DJ |
1173 | } |
1174 | ||
7f79c47e DE |
1175 | /* For docs see target.h, to_xfer_partial. */ |
1176 | ||
9b409511 | 1177 | enum target_xfer_status |
27394598 AC |
1178 | target_xfer_partial (struct target_ops *ops, |
1179 | enum target_object object, const char *annex, | |
4ac248ca | 1180 | gdb_byte *readbuf, const gdb_byte *writebuf, |
9b409511 YQ |
1181 | ULONGEST offset, ULONGEST len, |
1182 | ULONGEST *xfered_len) | |
27394598 | 1183 | { |
9b409511 | 1184 | enum target_xfer_status retval; |
27394598 | 1185 | |
ce6d0892 YQ |
1186 | /* Transfer is done when LEN is zero. */ |
1187 | if (len == 0) | |
9b409511 | 1188 | return TARGET_XFER_EOF; |
ce6d0892 | 1189 | |
d914c394 SS |
1190 | if (writebuf && !may_write_memory) |
1191 | error (_("Writing to memory is not allowed (addr %s, len %s)"), | |
1192 | core_addr_to_string_nz (offset), plongest (len)); | |
1193 | ||
9b409511 YQ |
1194 | *xfered_len = 0; |
1195 | ||
cf7a04e8 DJ |
1196 | /* If this is a memory transfer, let the memory-specific code |
1197 | have a look at it instead. Memory transfers are more | |
1198 | complicated. */ | |
29453a14 YQ |
1199 | if (object == TARGET_OBJECT_MEMORY || object == TARGET_OBJECT_STACK_MEMORY |
1200 | || object == TARGET_OBJECT_CODE_MEMORY) | |
4e5d721f | 1201 | retval = memory_xfer_partial (ops, object, readbuf, |
9b409511 | 1202 | writebuf, offset, len, xfered_len); |
9f713294 | 1203 | else if (object == TARGET_OBJECT_RAW_MEMORY) |
cf7a04e8 | 1204 | { |
0fec99e8 PA |
1205 | /* Skip/avoid accessing the target if the memory region |
1206 | attributes block the access. Check this here instead of in | |
1207 | raw_memory_xfer_partial as otherwise we'd end up checking | |
1208 | this twice in the case of the memory_xfer_partial path is | |
1209 | taken; once before checking the dcache, and another in the | |
1210 | tail call to raw_memory_xfer_partial. */ | |
1211 | if (!memory_xfer_check_region (readbuf, writebuf, offset, len, &len, | |
1212 | NULL)) | |
1213 | return TARGET_XFER_E_IO; | |
1214 | ||
9f713294 | 1215 | /* Request the normal memory object from other layers. */ |
9b409511 YQ |
1216 | retval = raw_memory_xfer_partial (ops, readbuf, writebuf, offset, len, |
1217 | xfered_len); | |
cf7a04e8 | 1218 | } |
9f713294 | 1219 | else |
f6ac5f3d PA |
1220 | retval = ops->xfer_partial (object, annex, readbuf, |
1221 | writebuf, offset, len, xfered_len); | |
cf7a04e8 | 1222 | |
27394598 AC |
1223 | if (targetdebug) |
1224 | { | |
1225 | const unsigned char *myaddr = NULL; | |
1226 | ||
1227 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a | 1228 | "%s:target_xfer_partial " |
9b409511 | 1229 | "(%d, %s, %s, %s, %s, %s) = %d, %s", |
f6ac5f3d | 1230 | ops->shortname (), |
27394598 AC |
1231 | (int) object, |
1232 | (annex ? annex : "(null)"), | |
53b71562 JB |
1233 | host_address_to_string (readbuf), |
1234 | host_address_to_string (writebuf), | |
0b1553bc | 1235 | core_addr_to_string_nz (offset), |
9b409511 YQ |
1236 | pulongest (len), retval, |
1237 | pulongest (*xfered_len)); | |
27394598 AC |
1238 | |
1239 | if (readbuf) | |
1240 | myaddr = readbuf; | |
1241 | if (writebuf) | |
1242 | myaddr = writebuf; | |
9b409511 | 1243 | if (retval == TARGET_XFER_OK && myaddr != NULL) |
27394598 AC |
1244 | { |
1245 | int i; | |
2bc416ba | 1246 | |
27394598 | 1247 | fputs_unfiltered (", bytes =", gdb_stdlog); |
9b409511 | 1248 | for (i = 0; i < *xfered_len; i++) |
27394598 | 1249 | { |
53b71562 | 1250 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
27394598 AC |
1251 | { |
1252 | if (targetdebug < 2 && i > 0) | |
1253 | { | |
1254 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1255 | break; | |
1256 | } | |
1257 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1258 | } | |
2bc416ba | 1259 | |
27394598 AC |
1260 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1261 | } | |
1262 | } | |
2bc416ba | 1263 | |
27394598 AC |
1264 | fputc_unfiltered ('\n', gdb_stdlog); |
1265 | } | |
9b409511 YQ |
1266 | |
1267 | /* Check implementations of to_xfer_partial update *XFERED_LEN | |
1268 | properly. Do assertion after printing debug messages, so that we | |
1269 | can find more clues on assertion failure from debugging messages. */ | |
bc113b4e | 1270 | if (retval == TARGET_XFER_OK || retval == TARGET_XFER_UNAVAILABLE) |
9b409511 YQ |
1271 | gdb_assert (*xfered_len > 0); |
1272 | ||
27394598 AC |
1273 | return retval; |
1274 | } | |
1275 | ||
578d3588 PA |
1276 | /* Read LEN bytes of target memory at address MEMADDR, placing the |
1277 | results in GDB's memory at MYADDR. Returns either 0 for success or | |
d09f2c3f | 1278 | -1 if any error occurs. |
c906108c SS |
1279 | |
1280 | If an error occurs, no guarantee is made about the contents of the data at | |
1281 | MYADDR. In particular, the caller should not depend upon partial reads | |
1282 | filling the buffer with good data. There is no way for the caller to know | |
1283 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 | 1284 | deal with partial reads should call target_read (which will retry until |
c378eb4e | 1285 | it makes no progress, and then return how much was transferred). */ |
c906108c SS |
1286 | |
1287 | int | |
1b162304 | 1288 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
c906108c | 1289 | { |
8b88a78e | 1290 | if (target_read (current_top_target (), TARGET_OBJECT_MEMORY, NULL, |
cf7a04e8 DJ |
1291 | myaddr, memaddr, len) == len) |
1292 | return 0; | |
0779438d | 1293 | else |
d09f2c3f | 1294 | return -1; |
c906108c SS |
1295 | } |
1296 | ||
721ec300 GB |
1297 | /* See target/target.h. */ |
1298 | ||
1299 | int | |
1300 | target_read_uint32 (CORE_ADDR memaddr, uint32_t *result) | |
1301 | { | |
1302 | gdb_byte buf[4]; | |
1303 | int r; | |
1304 | ||
1305 | r = target_read_memory (memaddr, buf, sizeof buf); | |
1306 | if (r != 0) | |
1307 | return r; | |
1308 | *result = extract_unsigned_integer (buf, sizeof buf, | |
1309 | gdbarch_byte_order (target_gdbarch ())); | |
1310 | return 0; | |
1311 | } | |
1312 | ||
aee4bf85 PA |
1313 | /* Like target_read_memory, but specify explicitly that this is a read |
1314 | from the target's raw memory. That is, this read bypasses the | |
1315 | dcache, breakpoint shadowing, etc. */ | |
1316 | ||
1317 | int | |
1318 | target_read_raw_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1319 | { | |
8b88a78e | 1320 | if (target_read (current_top_target (), TARGET_OBJECT_RAW_MEMORY, NULL, |
aee4bf85 PA |
1321 | myaddr, memaddr, len) == len) |
1322 | return 0; | |
1323 | else | |
d09f2c3f | 1324 | return -1; |
aee4bf85 PA |
1325 | } |
1326 | ||
4e5d721f DE |
1327 | /* Like target_read_memory, but specify explicitly that this is a read from |
1328 | the target's stack. This may trigger different cache behavior. */ | |
1329 | ||
1330 | int | |
45aa4659 | 1331 | target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
4e5d721f | 1332 | { |
8b88a78e | 1333 | if (target_read (current_top_target (), TARGET_OBJECT_STACK_MEMORY, NULL, |
4e5d721f DE |
1334 | myaddr, memaddr, len) == len) |
1335 | return 0; | |
1336 | else | |
d09f2c3f | 1337 | return -1; |
4e5d721f DE |
1338 | } |
1339 | ||
29453a14 YQ |
1340 | /* Like target_read_memory, but specify explicitly that this is a read from |
1341 | the target's code. This may trigger different cache behavior. */ | |
1342 | ||
1343 | int | |
1344 | target_read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1345 | { | |
8b88a78e | 1346 | if (target_read (current_top_target (), TARGET_OBJECT_CODE_MEMORY, NULL, |
29453a14 YQ |
1347 | myaddr, memaddr, len) == len) |
1348 | return 0; | |
1349 | else | |
d09f2c3f | 1350 | return -1; |
29453a14 YQ |
1351 | } |
1352 | ||
7f79c47e | 1353 | /* Write LEN bytes from MYADDR to target memory at address MEMADDR. |
d09f2c3f PA |
1354 | Returns either 0 for success or -1 if any error occurs. If an |
1355 | error occurs, no guarantee is made about how much data got written. | |
1356 | Callers that can deal with partial writes should call | |
1357 | target_write. */ | |
7f79c47e | 1358 | |
c906108c | 1359 | int |
45aa4659 | 1360 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
c906108c | 1361 | { |
8b88a78e | 1362 | if (target_write (current_top_target (), TARGET_OBJECT_MEMORY, NULL, |
cf7a04e8 DJ |
1363 | myaddr, memaddr, len) == len) |
1364 | return 0; | |
0779438d | 1365 | else |
d09f2c3f | 1366 | return -1; |
c906108c | 1367 | } |
c5aa993b | 1368 | |
f0ba3972 | 1369 | /* Write LEN bytes from MYADDR to target raw memory at address |
d09f2c3f PA |
1370 | MEMADDR. Returns either 0 for success or -1 if any error occurs. |
1371 | If an error occurs, no guarantee is made about how much data got | |
1372 | written. Callers that can deal with partial writes should call | |
1373 | target_write. */ | |
f0ba3972 PA |
1374 | |
1375 | int | |
45aa4659 | 1376 | target_write_raw_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
f0ba3972 | 1377 | { |
8b88a78e | 1378 | if (target_write (current_top_target (), TARGET_OBJECT_RAW_MEMORY, NULL, |
f0ba3972 PA |
1379 | myaddr, memaddr, len) == len) |
1380 | return 0; | |
1381 | else | |
d09f2c3f | 1382 | return -1; |
f0ba3972 PA |
1383 | } |
1384 | ||
fd79ecee DJ |
1385 | /* Fetch the target's memory map. */ |
1386 | ||
a664f67e | 1387 | std::vector<mem_region> |
fd79ecee DJ |
1388 | target_memory_map (void) |
1389 | { | |
8b88a78e | 1390 | std::vector<mem_region> result = current_top_target ()->memory_map (); |
a664f67e SM |
1391 | if (result.empty ()) |
1392 | return result; | |
fd79ecee | 1393 | |
a664f67e | 1394 | std::sort (result.begin (), result.end ()); |
fd79ecee DJ |
1395 | |
1396 | /* Check that regions do not overlap. Simultaneously assign | |
1397 | a numbering for the "mem" commands to use to refer to | |
1398 | each region. */ | |
a664f67e SM |
1399 | mem_region *last_one = NULL; |
1400 | for (size_t ix = 0; ix < result.size (); ix++) | |
fd79ecee | 1401 | { |
a664f67e | 1402 | mem_region *this_one = &result[ix]; |
fd79ecee DJ |
1403 | this_one->number = ix; |
1404 | ||
a664f67e | 1405 | if (last_one != NULL && last_one->hi > this_one->lo) |
fd79ecee DJ |
1406 | { |
1407 | warning (_("Overlapping regions in memory map: ignoring")); | |
a664f67e | 1408 | return std::vector<mem_region> (); |
fd79ecee | 1409 | } |
a664f67e | 1410 | |
fd79ecee DJ |
1411 | last_one = this_one; |
1412 | } | |
1413 | ||
1414 | return result; | |
1415 | } | |
1416 | ||
a76d924d DJ |
1417 | void |
1418 | target_flash_erase (ULONGEST address, LONGEST length) | |
1419 | { | |
8b88a78e | 1420 | current_top_target ()->flash_erase (address, length); |
a76d924d DJ |
1421 | } |
1422 | ||
1423 | void | |
1424 | target_flash_done (void) | |
1425 | { | |
8b88a78e | 1426 | current_top_target ()->flash_done (); |
a76d924d DJ |
1427 | } |
1428 | ||
920d2a44 AC |
1429 | static void |
1430 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1431 | struct cmd_list_element *c, const char *value) | |
1432 | { | |
3e43a32a MS |
1433 | fprintf_filtered (file, |
1434 | _("Mode for reading from readonly sections is %s.\n"), | |
920d2a44 AC |
1435 | value); |
1436 | } | |
3a11626d | 1437 | |
7f79c47e | 1438 | /* Target vector read/write partial wrapper functions. */ |
0088c768 | 1439 | |
9b409511 | 1440 | static enum target_xfer_status |
1e3ff5ad AC |
1441 | target_read_partial (struct target_ops *ops, |
1442 | enum target_object object, | |
1b0ba102 | 1443 | const char *annex, gdb_byte *buf, |
9b409511 YQ |
1444 | ULONGEST offset, ULONGEST len, |
1445 | ULONGEST *xfered_len) | |
1e3ff5ad | 1446 | { |
9b409511 YQ |
1447 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len, |
1448 | xfered_len); | |
1e3ff5ad AC |
1449 | } |
1450 | ||
8a55ffb0 | 1451 | static enum target_xfer_status |
1e3ff5ad AC |
1452 | target_write_partial (struct target_ops *ops, |
1453 | enum target_object object, | |
1b0ba102 | 1454 | const char *annex, const gdb_byte *buf, |
9b409511 | 1455 | ULONGEST offset, LONGEST len, ULONGEST *xfered_len) |
1e3ff5ad | 1456 | { |
9b409511 YQ |
1457 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len, |
1458 | xfered_len); | |
1e3ff5ad AC |
1459 | } |
1460 | ||
1461 | /* Wrappers to perform the full transfer. */ | |
7f79c47e DE |
1462 | |
1463 | /* For docs on target_read see target.h. */ | |
1464 | ||
1e3ff5ad AC |
1465 | LONGEST |
1466 | target_read (struct target_ops *ops, | |
1467 | enum target_object object, | |
1b0ba102 | 1468 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1469 | ULONGEST offset, LONGEST len) |
1470 | { | |
279a6fed | 1471 | LONGEST xfered_total = 0; |
d309493c SM |
1472 | int unit_size = 1; |
1473 | ||
1474 | /* If we are reading from a memory object, find the length of an addressable | |
1475 | unit for that architecture. */ | |
1476 | if (object == TARGET_OBJECT_MEMORY | |
1477 | || object == TARGET_OBJECT_STACK_MEMORY | |
1478 | || object == TARGET_OBJECT_CODE_MEMORY | |
1479 | || object == TARGET_OBJECT_RAW_MEMORY) | |
1480 | unit_size = gdbarch_addressable_memory_unit_size (target_gdbarch ()); | |
5d502164 | 1481 | |
279a6fed | 1482 | while (xfered_total < len) |
1e3ff5ad | 1483 | { |
279a6fed | 1484 | ULONGEST xfered_partial; |
9b409511 YQ |
1485 | enum target_xfer_status status; |
1486 | ||
1487 | status = target_read_partial (ops, object, annex, | |
d309493c | 1488 | buf + xfered_total * unit_size, |
279a6fed SM |
1489 | offset + xfered_total, len - xfered_total, |
1490 | &xfered_partial); | |
5d502164 | 1491 | |
1e3ff5ad | 1492 | /* Call an observer, notifying them of the xfer progress? */ |
9b409511 | 1493 | if (status == TARGET_XFER_EOF) |
279a6fed | 1494 | return xfered_total; |
9b409511 YQ |
1495 | else if (status == TARGET_XFER_OK) |
1496 | { | |
279a6fed | 1497 | xfered_total += xfered_partial; |
9b409511 YQ |
1498 | QUIT; |
1499 | } | |
1500 | else | |
279a6fed | 1501 | return TARGET_XFER_E_IO; |
9b409511 | 1502 | |
1e3ff5ad AC |
1503 | } |
1504 | return len; | |
1505 | } | |
1506 | ||
f1a507a1 JB |
1507 | /* Assuming that the entire [begin, end) range of memory cannot be |
1508 | read, try to read whatever subrange is possible to read. | |
1509 | ||
1510 | The function returns, in RESULT, either zero or one memory block. | |
1511 | If there's a readable subrange at the beginning, it is completely | |
1512 | read and returned. Any further readable subrange will not be read. | |
1513 | Otherwise, if there's a readable subrange at the end, it will be | |
1514 | completely read and returned. Any readable subranges before it | |
1515 | (obviously, not starting at the beginning), will be ignored. In | |
1516 | other cases -- either no readable subrange, or readable subrange(s) | |
1517 | that is neither at the beginning, or end, nothing is returned. | |
1518 | ||
1519 | The purpose of this function is to handle a read across a boundary | |
1520 | of accessible memory in a case when memory map is not available. | |
1521 | The above restrictions are fine for this case, but will give | |
1522 | incorrect results if the memory is 'patchy'. However, supporting | |
1523 | 'patchy' memory would require trying to read every single byte, | |
1524 | and it seems unacceptable solution. Explicit memory map is | |
1525 | recommended for this case -- and target_read_memory_robust will | |
1526 | take care of reading multiple ranges then. */ | |
8dedea02 VP |
1527 | |
1528 | static void | |
3e43a32a | 1529 | read_whatever_is_readable (struct target_ops *ops, |
279a6fed | 1530 | const ULONGEST begin, const ULONGEST end, |
d309493c | 1531 | int unit_size, |
386c8614 | 1532 | std::vector<memory_read_result> *result) |
d5086790 | 1533 | { |
8dedea02 VP |
1534 | ULONGEST current_begin = begin; |
1535 | ULONGEST current_end = end; | |
1536 | int forward; | |
9b409511 | 1537 | ULONGEST xfered_len; |
8dedea02 VP |
1538 | |
1539 | /* If we previously failed to read 1 byte, nothing can be done here. */ | |
1540 | if (end - begin <= 1) | |
386c8614 TT |
1541 | return; |
1542 | ||
1543 | gdb::unique_xmalloc_ptr<gdb_byte> buf ((gdb_byte *) xmalloc (end - begin)); | |
8dedea02 VP |
1544 | |
1545 | /* Check that either first or the last byte is readable, and give up | |
c378eb4e | 1546 | if not. This heuristic is meant to permit reading accessible memory |
8dedea02 VP |
1547 | at the boundary of accessible region. */ |
1548 | if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
386c8614 | 1549 | buf.get (), begin, 1, &xfered_len) == TARGET_XFER_OK) |
8dedea02 VP |
1550 | { |
1551 | forward = 1; | |
1552 | ++current_begin; | |
1553 | } | |
1554 | else if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
386c8614 | 1555 | buf.get () + (end - begin) - 1, end - 1, 1, |
9b409511 | 1556 | &xfered_len) == TARGET_XFER_OK) |
8dedea02 VP |
1557 | { |
1558 | forward = 0; | |
1559 | --current_end; | |
1560 | } | |
1561 | else | |
386c8614 | 1562 | return; |
8dedea02 VP |
1563 | |
1564 | /* Loop invariant is that the [current_begin, current_end) was previously | |
1565 | found to be not readable as a whole. | |
1566 | ||
1567 | Note loop condition -- if the range has 1 byte, we can't divide the range | |
1568 | so there's no point trying further. */ | |
1569 | while (current_end - current_begin > 1) | |
1570 | { | |
1571 | ULONGEST first_half_begin, first_half_end; | |
1572 | ULONGEST second_half_begin, second_half_end; | |
1573 | LONGEST xfer; | |
279a6fed | 1574 | ULONGEST middle = current_begin + (current_end - current_begin) / 2; |
f1a507a1 | 1575 | |
8dedea02 VP |
1576 | if (forward) |
1577 | { | |
1578 | first_half_begin = current_begin; | |
1579 | first_half_end = middle; | |
1580 | second_half_begin = middle; | |
1581 | second_half_end = current_end; | |
1582 | } | |
1583 | else | |
1584 | { | |
1585 | first_half_begin = middle; | |
1586 | first_half_end = current_end; | |
1587 | second_half_begin = current_begin; | |
1588 | second_half_end = middle; | |
1589 | } | |
1590 | ||
1591 | xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
386c8614 | 1592 | buf.get () + (first_half_begin - begin) * unit_size, |
8dedea02 VP |
1593 | first_half_begin, |
1594 | first_half_end - first_half_begin); | |
1595 | ||
1596 | if (xfer == first_half_end - first_half_begin) | |
1597 | { | |
c378eb4e | 1598 | /* This half reads up fine. So, the error must be in the |
3e43a32a | 1599 | other half. */ |
8dedea02 VP |
1600 | current_begin = second_half_begin; |
1601 | current_end = second_half_end; | |
1602 | } | |
1603 | else | |
1604 | { | |
c378eb4e | 1605 | /* This half is not readable. Because we've tried one byte, we |
279a6fed | 1606 | know some part of this half if actually readable. Go to the next |
8dedea02 VP |
1607 | iteration to divide again and try to read. |
1608 | ||
1609 | We don't handle the other half, because this function only tries | |
1610 | to read a single readable subrange. */ | |
1611 | current_begin = first_half_begin; | |
1612 | current_end = first_half_end; | |
1613 | } | |
1614 | } | |
1615 | ||
1616 | if (forward) | |
1617 | { | |
1618 | /* The [begin, current_begin) range has been read. */ | |
386c8614 | 1619 | result->emplace_back (begin, current_end, std::move (buf)); |
8dedea02 VP |
1620 | } |
1621 | else | |
1622 | { | |
1623 | /* The [current_end, end) range has been read. */ | |
279a6fed | 1624 | LONGEST region_len = end - current_end; |
f1a507a1 | 1625 | |
386c8614 TT |
1626 | gdb::unique_xmalloc_ptr<gdb_byte> data |
1627 | ((gdb_byte *) xmalloc (region_len * unit_size)); | |
1628 | memcpy (data.get (), buf.get () + (current_end - begin) * unit_size, | |
d309493c | 1629 | region_len * unit_size); |
386c8614 | 1630 | result->emplace_back (current_end, end, std::move (data)); |
8dedea02 | 1631 | } |
8dedea02 VP |
1632 | } |
1633 | ||
386c8614 | 1634 | std::vector<memory_read_result> |
279a6fed SM |
1635 | read_memory_robust (struct target_ops *ops, |
1636 | const ULONGEST offset, const LONGEST len) | |
8dedea02 | 1637 | { |
386c8614 | 1638 | std::vector<memory_read_result> result; |
d309493c | 1639 | int unit_size = gdbarch_addressable_memory_unit_size (target_gdbarch ()); |
8dedea02 | 1640 | |
279a6fed SM |
1641 | LONGEST xfered_total = 0; |
1642 | while (xfered_total < len) | |
d5086790 | 1643 | { |
279a6fed SM |
1644 | struct mem_region *region = lookup_mem_region (offset + xfered_total); |
1645 | LONGEST region_len; | |
5d502164 | 1646 | |
8dedea02 VP |
1647 | /* If there is no explicit region, a fake one should be created. */ |
1648 | gdb_assert (region); | |
1649 | ||
1650 | if (region->hi == 0) | |
279a6fed | 1651 | region_len = len - xfered_total; |
8dedea02 | 1652 | else |
279a6fed | 1653 | region_len = region->hi - offset; |
8dedea02 VP |
1654 | |
1655 | if (region->attrib.mode == MEM_NONE || region->attrib.mode == MEM_WO) | |
d5086790 | 1656 | { |
c378eb4e | 1657 | /* Cannot read this region. Note that we can end up here only |
8dedea02 VP |
1658 | if the region is explicitly marked inaccessible, or |
1659 | 'inaccessible-by-default' is in effect. */ | |
279a6fed | 1660 | xfered_total += region_len; |
8dedea02 VP |
1661 | } |
1662 | else | |
1663 | { | |
325fac50 | 1664 | LONGEST to_read = std::min (len - xfered_total, region_len); |
386c8614 TT |
1665 | gdb::unique_xmalloc_ptr<gdb_byte> buffer |
1666 | ((gdb_byte *) xmalloc (to_read * unit_size)); | |
8dedea02 | 1667 | |
279a6fed | 1668 | LONGEST xfered_partial = |
386c8614 | 1669 | target_read (ops, TARGET_OBJECT_MEMORY, NULL, buffer.get (), |
279a6fed | 1670 | offset + xfered_total, to_read); |
8dedea02 | 1671 | /* Call an observer, notifying them of the xfer progress? */ |
279a6fed | 1672 | if (xfered_partial <= 0) |
d5086790 | 1673 | { |
c378eb4e | 1674 | /* Got an error reading full chunk. See if maybe we can read |
8dedea02 | 1675 | some subrange. */ |
e084c964 DB |
1676 | read_whatever_is_readable (ops, offset + xfered_total, |
1677 | offset + xfered_total + to_read, | |
1678 | unit_size, &result); | |
279a6fed | 1679 | xfered_total += to_read; |
d5086790 | 1680 | } |
8dedea02 VP |
1681 | else |
1682 | { | |
386c8614 TT |
1683 | result.emplace_back (offset + xfered_total, |
1684 | offset + xfered_total + xfered_partial, | |
1685 | std::move (buffer)); | |
279a6fed | 1686 | xfered_total += xfered_partial; |
8dedea02 VP |
1687 | } |
1688 | QUIT; | |
d5086790 | 1689 | } |
d5086790 | 1690 | } |
9d78f827 | 1691 | |
8dedea02 | 1692 | return result; |
d5086790 VP |
1693 | } |
1694 | ||
8dedea02 | 1695 | |
cf7a04e8 DJ |
1696 | /* An alternative to target_write with progress callbacks. */ |
1697 | ||
1e3ff5ad | 1698 | LONGEST |
cf7a04e8 DJ |
1699 | target_write_with_progress (struct target_ops *ops, |
1700 | enum target_object object, | |
1701 | const char *annex, const gdb_byte *buf, | |
1702 | ULONGEST offset, LONGEST len, | |
1703 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad | 1704 | { |
279a6fed | 1705 | LONGEST xfered_total = 0; |
d309493c SM |
1706 | int unit_size = 1; |
1707 | ||
1708 | /* If we are writing to a memory object, find the length of an addressable | |
1709 | unit for that architecture. */ | |
1710 | if (object == TARGET_OBJECT_MEMORY | |
1711 | || object == TARGET_OBJECT_STACK_MEMORY | |
1712 | || object == TARGET_OBJECT_CODE_MEMORY | |
1713 | || object == TARGET_OBJECT_RAW_MEMORY) | |
1714 | unit_size = gdbarch_addressable_memory_unit_size (target_gdbarch ()); | |
a76d924d DJ |
1715 | |
1716 | /* Give the progress callback a chance to set up. */ | |
1717 | if (progress) | |
1718 | (*progress) (0, baton); | |
1719 | ||
279a6fed | 1720 | while (xfered_total < len) |
1e3ff5ad | 1721 | { |
279a6fed | 1722 | ULONGEST xfered_partial; |
9b409511 YQ |
1723 | enum target_xfer_status status; |
1724 | ||
1725 | status = target_write_partial (ops, object, annex, | |
d309493c | 1726 | buf + xfered_total * unit_size, |
279a6fed SM |
1727 | offset + xfered_total, len - xfered_total, |
1728 | &xfered_partial); | |
cf7a04e8 | 1729 | |
5c328c05 | 1730 | if (status != TARGET_XFER_OK) |
279a6fed | 1731 | return status == TARGET_XFER_EOF ? xfered_total : TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1732 | |
1733 | if (progress) | |
279a6fed | 1734 | (*progress) (xfered_partial, baton); |
cf7a04e8 | 1735 | |
279a6fed | 1736 | xfered_total += xfered_partial; |
1e3ff5ad AC |
1737 | QUIT; |
1738 | } | |
1739 | return len; | |
1740 | } | |
1741 | ||
7f79c47e DE |
1742 | /* For docs on target_write see target.h. */ |
1743 | ||
cf7a04e8 DJ |
1744 | LONGEST |
1745 | target_write (struct target_ops *ops, | |
1746 | enum target_object object, | |
1747 | const char *annex, const gdb_byte *buf, | |
1748 | ULONGEST offset, LONGEST len) | |
1749 | { | |
1750 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
1751 | NULL, NULL); | |
1752 | } | |
1753 | ||
9018be22 SM |
1754 | /* Help for target_read_alloc and target_read_stralloc. See their comments |
1755 | for details. */ | |
13547ab6 | 1756 | |
9018be22 SM |
1757 | template <typename T> |
1758 | gdb::optional<gdb::def_vector<T>> | |
159f81f3 | 1759 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, |
9018be22 | 1760 | const char *annex) |
13547ab6 | 1761 | { |
9018be22 SM |
1762 | gdb::def_vector<T> buf; |
1763 | size_t buf_pos = 0; | |
1764 | const int chunk = 4096; | |
13547ab6 DJ |
1765 | |
1766 | /* This function does not have a length parameter; it reads the | |
1767 | entire OBJECT). Also, it doesn't support objects fetched partly | |
1768 | from one target and partly from another (in a different stratum, | |
1769 | e.g. a core file and an executable). Both reasons make it | |
1770 | unsuitable for reading memory. */ | |
1771 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
1772 | ||
1773 | /* Start by reading up to 4K at a time. The target will throttle | |
1774 | this number down if necessary. */ | |
13547ab6 DJ |
1775 | while (1) |
1776 | { | |
9b409511 YQ |
1777 | ULONGEST xfered_len; |
1778 | enum target_xfer_status status; | |
1779 | ||
9018be22 SM |
1780 | buf.resize (buf_pos + chunk); |
1781 | ||
1782 | status = target_read_partial (ops, object, annex, | |
1783 | (gdb_byte *) &buf[buf_pos], | |
1784 | buf_pos, chunk, | |
9b409511 YQ |
1785 | &xfered_len); |
1786 | ||
1787 | if (status == TARGET_XFER_EOF) | |
13547ab6 DJ |
1788 | { |
1789 | /* Read all there was. */ | |
9018be22 SM |
1790 | buf.resize (buf_pos); |
1791 | return buf; | |
13547ab6 | 1792 | } |
9b409511 YQ |
1793 | else if (status != TARGET_XFER_OK) |
1794 | { | |
1795 | /* An error occurred. */ | |
9018be22 | 1796 | return {}; |
9b409511 | 1797 | } |
13547ab6 | 1798 | |
9b409511 | 1799 | buf_pos += xfered_len; |
13547ab6 | 1800 | |
13547ab6 DJ |
1801 | QUIT; |
1802 | } | |
1803 | } | |
1804 | ||
9018be22 | 1805 | /* See target.h */ |
159f81f3 | 1806 | |
9018be22 | 1807 | gdb::optional<gdb::byte_vector> |
159f81f3 | 1808 | target_read_alloc (struct target_ops *ops, enum target_object object, |
9018be22 | 1809 | const char *annex) |
159f81f3 | 1810 | { |
9018be22 | 1811 | return target_read_alloc_1<gdb_byte> (ops, object, annex); |
159f81f3 DJ |
1812 | } |
1813 | ||
b7b030ad | 1814 | /* See target.h. */ |
159f81f3 | 1815 | |
9018be22 | 1816 | gdb::optional<gdb::char_vector> |
159f81f3 DJ |
1817 | target_read_stralloc (struct target_ops *ops, enum target_object object, |
1818 | const char *annex) | |
1819 | { | |
9018be22 SM |
1820 | gdb::optional<gdb::char_vector> buf |
1821 | = target_read_alloc_1<char> (ops, object, annex); | |
159f81f3 | 1822 | |
9018be22 SM |
1823 | if (!buf) |
1824 | return {}; | |
159f81f3 | 1825 | |
d00a27c5 | 1826 | if (buf->empty () || buf->back () != '\0') |
9018be22 | 1827 | buf->push_back ('\0'); |
7313baad UW |
1828 | |
1829 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
9018be22 SM |
1830 | for (auto it = std::find (buf->begin (), buf->end (), '\0'); |
1831 | it != buf->end (); it++) | |
1832 | if (*it != '\0') | |
7313baad UW |
1833 | { |
1834 | warning (_("target object %d, annex %s, " | |
1835 | "contained unexpected null characters"), | |
1836 | (int) object, annex ? annex : "(none)"); | |
1837 | break; | |
1838 | } | |
159f81f3 | 1839 | |
9018be22 | 1840 | return buf; |
159f81f3 DJ |
1841 | } |
1842 | ||
b6591e8b AC |
1843 | /* Memory transfer methods. */ |
1844 | ||
1845 | void | |
1b0ba102 | 1846 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
1847 | LONGEST len) |
1848 | { | |
07b82ea5 PA |
1849 | /* This method is used to read from an alternate, non-current |
1850 | target. This read must bypass the overlay support (as symbols | |
1851 | don't match this target), and GDB's internal cache (wrong cache | |
1852 | for this target). */ | |
1853 | if (target_read (ops, TARGET_OBJECT_RAW_MEMORY, NULL, buf, addr, len) | |
b6591e8b | 1854 | != len) |
578d3588 | 1855 | memory_error (TARGET_XFER_E_IO, addr); |
b6591e8b AC |
1856 | } |
1857 | ||
1858 | ULONGEST | |
5d502164 MS |
1859 | get_target_memory_unsigned (struct target_ops *ops, CORE_ADDR addr, |
1860 | int len, enum bfd_endian byte_order) | |
b6591e8b | 1861 | { |
f6519ebc | 1862 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
1863 | |
1864 | gdb_assert (len <= sizeof (buf)); | |
1865 | get_target_memory (ops, addr, buf, len); | |
e17a4113 | 1866 | return extract_unsigned_integer (buf, len, byte_order); |
b6591e8b AC |
1867 | } |
1868 | ||
3db08215 MM |
1869 | /* See target.h. */ |
1870 | ||
d914c394 SS |
1871 | int |
1872 | target_insert_breakpoint (struct gdbarch *gdbarch, | |
1873 | struct bp_target_info *bp_tgt) | |
1874 | { | |
1875 | if (!may_insert_breakpoints) | |
1876 | { | |
1877 | warning (_("May not insert breakpoints")); | |
1878 | return 1; | |
1879 | } | |
1880 | ||
8b88a78e | 1881 | return current_top_target ()->insert_breakpoint (gdbarch, bp_tgt); |
d914c394 SS |
1882 | } |
1883 | ||
3db08215 MM |
1884 | /* See target.h. */ |
1885 | ||
d914c394 | 1886 | int |
6b84065d | 1887 | target_remove_breakpoint (struct gdbarch *gdbarch, |
73971819 PA |
1888 | struct bp_target_info *bp_tgt, |
1889 | enum remove_bp_reason reason) | |
d914c394 SS |
1890 | { |
1891 | /* This is kind of a weird case to handle, but the permission might | |
1892 | have been changed after breakpoints were inserted - in which case | |
1893 | we should just take the user literally and assume that any | |
1894 | breakpoints should be left in place. */ | |
1895 | if (!may_insert_breakpoints) | |
1896 | { | |
1897 | warning (_("May not remove breakpoints")); | |
1898 | return 1; | |
1899 | } | |
1900 | ||
8b88a78e | 1901 | return current_top_target ()->remove_breakpoint (gdbarch, bp_tgt, reason); |
d914c394 SS |
1902 | } |
1903 | ||
c906108c | 1904 | static void |
1d12d88f | 1905 | info_target_command (const char *args, int from_tty) |
c906108c | 1906 | { |
c906108c | 1907 | int has_all_mem = 0; |
c5aa993b | 1908 | |
c906108c | 1909 | if (symfile_objfile != NULL) |
4262abfb JK |
1910 | printf_unfiltered (_("Symbols from \"%s\".\n"), |
1911 | objfile_name (symfile_objfile)); | |
c906108c | 1912 | |
b6a8c27b | 1913 | for (target_ops *t = current_top_target (); t != NULL; t = t->beneath ()) |
c906108c | 1914 | { |
f6ac5f3d | 1915 | if (!t->has_memory ()) |
c906108c SS |
1916 | continue; |
1917 | ||
66b4deae | 1918 | if ((int) (t->stratum ()) <= (int) dummy_stratum) |
c906108c SS |
1919 | continue; |
1920 | if (has_all_mem) | |
3e43a32a MS |
1921 | printf_unfiltered (_("\tWhile running this, " |
1922 | "GDB does not access memory from...\n")); | |
f6ac5f3d PA |
1923 | printf_unfiltered ("%s:\n", t->longname ()); |
1924 | t->files_info (); | |
1925 | has_all_mem = t->has_all_memory (); | |
c906108c SS |
1926 | } |
1927 | } | |
1928 | ||
fd79ecee DJ |
1929 | /* This function is called before any new inferior is created, e.g. |
1930 | by running a program, attaching, or connecting to a target. | |
1931 | It cleans up any state from previous invocations which might | |
1932 | change between runs. This is a subset of what target_preopen | |
1933 | resets (things which might change between targets). */ | |
1934 | ||
1935 | void | |
1936 | target_pre_inferior (int from_tty) | |
1937 | { | |
c378eb4e | 1938 | /* Clear out solib state. Otherwise the solib state of the previous |
b9db4ced | 1939 | inferior might have survived and is entirely wrong for the new |
c378eb4e | 1940 | target. This has been observed on GNU/Linux using glibc 2.3. How |
b9db4ced UW |
1941 | to reproduce: |
1942 | ||
1943 | bash$ ./foo& | |
1944 | [1] 4711 | |
1945 | bash$ ./foo& | |
1946 | [1] 4712 | |
1947 | bash$ gdb ./foo | |
1948 | [...] | |
1949 | (gdb) attach 4711 | |
1950 | (gdb) detach | |
1951 | (gdb) attach 4712 | |
1952 | Cannot access memory at address 0xdeadbeef | |
1953 | */ | |
b9db4ced | 1954 | |
50c71eaf PA |
1955 | /* In some OSs, the shared library list is the same/global/shared |
1956 | across inferiors. If code is shared between processes, so are | |
1957 | memory regions and features. */ | |
f5656ead | 1958 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
50c71eaf PA |
1959 | { |
1960 | no_shared_libraries (NULL, from_tty); | |
1961 | ||
1962 | invalidate_target_mem_regions (); | |
424163ea | 1963 | |
50c71eaf PA |
1964 | target_clear_description (); |
1965 | } | |
8ffcbaaf | 1966 | |
e9756d52 PP |
1967 | /* attach_flag may be set if the previous process associated with |
1968 | the inferior was attached to. */ | |
1969 | current_inferior ()->attach_flag = 0; | |
1970 | ||
5d5658a1 PA |
1971 | current_inferior ()->highest_thread_num = 0; |
1972 | ||
8ffcbaaf | 1973 | agent_capability_invalidate (); |
fd79ecee DJ |
1974 | } |
1975 | ||
c906108c SS |
1976 | /* This is to be called by the open routine before it does |
1977 | anything. */ | |
1978 | ||
1979 | void | |
fba45db2 | 1980 | target_preopen (int from_tty) |
c906108c | 1981 | { |
c5aa993b | 1982 | dont_repeat (); |
c906108c | 1983 | |
5b6d1e4f | 1984 | if (current_inferior ()->pid != 0) |
c5aa993b | 1985 | { |
adf40b2e | 1986 | if (!from_tty |
5b6d1e4f | 1987 | || !target_has_execution |
b8fa0bfa | 1988 | || query (_("A program is being debugged already. Kill it? "))) |
5b6d1e4f PA |
1989 | { |
1990 | /* Core inferiors actually should be detached, not | |
1991 | killed. */ | |
1992 | if (target_has_execution) | |
1993 | target_kill (); | |
1994 | else | |
1995 | target_detach (current_inferior (), 0); | |
1996 | } | |
c906108c | 1997 | else |
8a3fe4f8 | 1998 | error (_("Program not killed.")); |
c906108c SS |
1999 | } |
2000 | ||
2001 | /* Calling target_kill may remove the target from the stack. But if | |
2002 | it doesn't (which seems like a win for UDI), remove it now. */ | |
87ab71f0 PA |
2003 | /* Leave the exec target, though. The user may be switching from a |
2004 | live process to a core of the same program. */ | |
460014f5 | 2005 | pop_all_targets_above (file_stratum); |
fd79ecee DJ |
2006 | |
2007 | target_pre_inferior (from_tty); | |
c906108c SS |
2008 | } |
2009 | ||
6bd6f3b6 | 2010 | /* See target.h. */ |
c906108c SS |
2011 | |
2012 | void | |
6e1e1966 | 2013 | target_detach (inferior *inf, int from_tty) |
c906108c | 2014 | { |
5783e150 PW |
2015 | /* After we have detached, we will clear the register cache for this inferior |
2016 | by calling registers_changed_ptid. We must save the pid_ptid before | |
2017 | detaching, as the target detach method will clear inf->pid. */ | |
2018 | ptid_t save_pid_ptid = ptid_t (inf->pid); | |
2019 | ||
6e1e1966 SM |
2020 | /* As long as some to_detach implementations rely on the current_inferior |
2021 | (either directly, or indirectly, like through target_gdbarch or by | |
2022 | reading memory), INF needs to be the current inferior. When that | |
2023 | requirement will become no longer true, then we can remove this | |
2024 | assertion. */ | |
2025 | gdb_assert (inf == current_inferior ()); | |
2026 | ||
f5656ead | 2027 | if (gdbarch_has_global_breakpoints (target_gdbarch ())) |
50c71eaf PA |
2028 | /* Don't remove global breakpoints here. They're removed on |
2029 | disconnection from the target. */ | |
2030 | ; | |
2031 | else | |
2032 | /* If we're in breakpoints-always-inserted mode, have to remove | |
00431a78 PA |
2033 | breakpoints before detaching. */ |
2034 | remove_breakpoints_inf (current_inferior ()); | |
74960c60 | 2035 | |
24291992 PA |
2036 | prepare_for_detach (); |
2037 | ||
5b6d1e4f PA |
2038 | /* Hold a strong reference because detaching may unpush the |
2039 | target. */ | |
2040 | auto proc_target_ref = target_ops_ref::new_reference (inf->process_target ()); | |
2041 | ||
8b88a78e | 2042 | current_top_target ()->detach (inf, from_tty); |
799efbe8 | 2043 | |
5b6d1e4f PA |
2044 | process_stratum_target *proc_target |
2045 | = as_process_stratum_target (proc_target_ref.get ()); | |
2046 | ||
2047 | registers_changed_ptid (proc_target, save_pid_ptid); | |
799efbe8 PW |
2048 | |
2049 | /* We have to ensure we have no frame cache left. Normally, | |
5783e150 PW |
2050 | registers_changed_ptid (save_pid_ptid) calls reinit_frame_cache when |
2051 | inferior_ptid matches save_pid_ptid, but in our case, it does not | |
799efbe8 PW |
2052 | call it, as inferior_ptid has been reset. */ |
2053 | reinit_frame_cache (); | |
c906108c SS |
2054 | } |
2055 | ||
6ad8ae5c | 2056 | void |
fee354ee | 2057 | target_disconnect (const char *args, int from_tty) |
6ad8ae5c | 2058 | { |
50c71eaf PA |
2059 | /* If we're in breakpoints-always-inserted mode or if breakpoints |
2060 | are global across processes, we have to remove them before | |
2061 | disconnecting. */ | |
74960c60 VP |
2062 | remove_breakpoints (); |
2063 | ||
8b88a78e | 2064 | current_top_target ()->disconnect (args, from_tty); |
6ad8ae5c DJ |
2065 | } |
2066 | ||
f2b9e3df SDJ |
2067 | /* See target/target.h. */ |
2068 | ||
117de6a9 | 2069 | ptid_t |
47608cb1 | 2070 | target_wait (ptid_t ptid, struct target_waitstatus *status, int options) |
117de6a9 | 2071 | { |
8b88a78e | 2072 | return current_top_target ()->wait (ptid, status, options); |
117de6a9 PA |
2073 | } |
2074 | ||
0b333c5e PA |
2075 | /* See target.h. */ |
2076 | ||
2077 | ptid_t | |
2078 | default_target_wait (struct target_ops *ops, | |
2079 | ptid_t ptid, struct target_waitstatus *status, | |
2080 | int options) | |
2081 | { | |
2082 | status->kind = TARGET_WAITKIND_IGNORE; | |
2083 | return minus_one_ptid; | |
2084 | } | |
2085 | ||
a068643d | 2086 | std::string |
117de6a9 PA |
2087 | target_pid_to_str (ptid_t ptid) |
2088 | { | |
8b88a78e | 2089 | return current_top_target ()->pid_to_str (ptid); |
117de6a9 PA |
2090 | } |
2091 | ||
73ede765 | 2092 | const char * |
4694da01 TT |
2093 | target_thread_name (struct thread_info *info) |
2094 | { | |
5b6d1e4f PA |
2095 | gdb_assert (info->inf == current_inferior ()); |
2096 | ||
8b88a78e | 2097 | return current_top_target ()->thread_name (info); |
4694da01 TT |
2098 | } |
2099 | ||
e04ee09e KB |
2100 | struct thread_info * |
2101 | target_thread_handle_to_thread_info (const gdb_byte *thread_handle, | |
2102 | int handle_len, | |
2103 | struct inferior *inf) | |
2104 | { | |
8b88a78e | 2105 | return current_top_target ()->thread_handle_to_thread_info (thread_handle, |
f6ac5f3d | 2106 | handle_len, inf); |
e04ee09e KB |
2107 | } |
2108 | ||
3d6c6204 KB |
2109 | /* See target.h. */ |
2110 | ||
2111 | gdb::byte_vector | |
2112 | target_thread_info_to_thread_handle (struct thread_info *tip) | |
2113 | { | |
2114 | return current_top_target ()->thread_info_to_thread_handle (tip); | |
2115 | } | |
2116 | ||
e1ac3328 | 2117 | void |
2ea28649 | 2118 | target_resume (ptid_t ptid, int step, enum gdb_signal signal) |
e1ac3328 | 2119 | { |
5b6d1e4f PA |
2120 | process_stratum_target *curr_target = current_inferior ()->process_target (); |
2121 | ||
4e5d721f | 2122 | target_dcache_invalidate (); |
28439f5e | 2123 | |
8b88a78e | 2124 | current_top_target ()->resume (ptid, step, signal); |
28439f5e | 2125 | |
5b6d1e4f | 2126 | registers_changed_ptid (curr_target, ptid); |
251bde03 | 2127 | /* We only set the internal executing state here. The user/frontend |
f2ffa92b PA |
2128 | running state is set at a higher level. This also clears the |
2129 | thread's stop_pc as side effect. */ | |
5b6d1e4f PA |
2130 | set_executing (curr_target, ptid, 1); |
2131 | clear_inline_frame_state (curr_target, ptid); | |
e1ac3328 | 2132 | } |
2455069d | 2133 | |
85ad3aaf PA |
2134 | /* If true, target_commit_resume is a nop. */ |
2135 | static int defer_target_commit_resume; | |
2136 | ||
2137 | /* See target.h. */ | |
2138 | ||
2139 | void | |
2140 | target_commit_resume (void) | |
2141 | { | |
85ad3aaf PA |
2142 | if (defer_target_commit_resume) |
2143 | return; | |
2144 | ||
8b88a78e | 2145 | current_top_target ()->commit_resume (); |
85ad3aaf PA |
2146 | } |
2147 | ||
2148 | /* See target.h. */ | |
2149 | ||
a9bc57b9 TT |
2150 | scoped_restore_tmpl<int> |
2151 | make_scoped_defer_target_commit_resume () | |
85ad3aaf | 2152 | { |
a9bc57b9 | 2153 | return make_scoped_restore (&defer_target_commit_resume, 1); |
85ad3aaf PA |
2154 | } |
2155 | ||
2455069d | 2156 | void |
adc6a863 | 2157 | target_pass_signals (gdb::array_view<const unsigned char> pass_signals) |
2455069d | 2158 | { |
adc6a863 | 2159 | current_top_target ()->pass_signals (pass_signals); |
2455069d UW |
2160 | } |
2161 | ||
9b224c5e | 2162 | void |
adc6a863 | 2163 | target_program_signals (gdb::array_view<const unsigned char> program_signals) |
9b224c5e | 2164 | { |
adc6a863 | 2165 | current_top_target ()->program_signals (program_signals); |
9b224c5e PA |
2166 | } |
2167 | ||
098dba18 TT |
2168 | static int |
2169 | default_follow_fork (struct target_ops *self, int follow_child, | |
2170 | int detach_fork) | |
2171 | { | |
2172 | /* Some target returned a fork event, but did not know how to follow it. */ | |
2173 | internal_error (__FILE__, __LINE__, | |
2174 | _("could not find a target to follow fork")); | |
2175 | } | |
2176 | ||
ee057212 DJ |
2177 | /* Look through the list of possible targets for a target that can |
2178 | follow forks. */ | |
2179 | ||
2180 | int | |
07107ca6 | 2181 | target_follow_fork (int follow_child, int detach_fork) |
ee057212 | 2182 | { |
8b88a78e | 2183 | return current_top_target ()->follow_fork (follow_child, detach_fork); |
ee057212 DJ |
2184 | } |
2185 | ||
94585166 DB |
2186 | /* Target wrapper for follow exec hook. */ |
2187 | ||
2188 | void | |
4ca51187 | 2189 | target_follow_exec (struct inferior *inf, const char *execd_pathname) |
94585166 | 2190 | { |
8b88a78e | 2191 | current_top_target ()->follow_exec (inf, execd_pathname); |
94585166 DB |
2192 | } |
2193 | ||
8d657035 TT |
2194 | static void |
2195 | default_mourn_inferior (struct target_ops *self) | |
2196 | { | |
2197 | internal_error (__FILE__, __LINE__, | |
2198 | _("could not find a target to follow mourn inferior")); | |
2199 | } | |
2200 | ||
136d6dae | 2201 | void |
bc1e6c81 | 2202 | target_mourn_inferior (ptid_t ptid) |
136d6dae | 2203 | { |
d7e15655 | 2204 | gdb_assert (ptid == inferior_ptid); |
8b88a78e | 2205 | current_top_target ()->mourn_inferior (); |
136d6dae | 2206 | |
8d657035 TT |
2207 | /* We no longer need to keep handles on any of the object files. |
2208 | Make sure to release them to avoid unnecessarily locking any | |
2209 | of them while we're not actually debugging. */ | |
2210 | bfd_cache_close_all (); | |
136d6dae VP |
2211 | } |
2212 | ||
424163ea DJ |
2213 | /* Look for a target which can describe architectural features, starting |
2214 | from TARGET. If we find one, return its description. */ | |
2215 | ||
2216 | const struct target_desc * | |
2217 | target_read_description (struct target_ops *target) | |
2218 | { | |
f6ac5f3d | 2219 | return target->read_description (); |
424163ea DJ |
2220 | } |
2221 | ||
58a5184e | 2222 | /* This implements a basic search of memory, reading target memory and |
08388c79 DE |
2223 | performing the search here (as opposed to performing the search in on the |
2224 | target side with, for example, gdbserver). */ | |
2225 | ||
2226 | int | |
2227 | simple_search_memory (struct target_ops *ops, | |
2228 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2229 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2230 | CORE_ADDR *found_addrp) | |
2231 | { | |
2232 | /* NOTE: also defined in find.c testcase. */ | |
2233 | #define SEARCH_CHUNK_SIZE 16000 | |
2234 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
2235 | /* Buffer to hold memory contents for searching. */ | |
08388c79 | 2236 | unsigned search_buf_size; |
08388c79 DE |
2237 | |
2238 | search_buf_size = chunk_size + pattern_len - 1; | |
2239 | ||
2240 | /* No point in trying to allocate a buffer larger than the search space. */ | |
2241 | if (search_space_len < search_buf_size) | |
2242 | search_buf_size = search_space_len; | |
2243 | ||
26fcd5d7 | 2244 | gdb::byte_vector search_buf (search_buf_size); |
08388c79 DE |
2245 | |
2246 | /* Prime the search buffer. */ | |
2247 | ||
2248 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
26fcd5d7 TT |
2249 | search_buf.data (), start_addr, search_buf_size) |
2250 | != search_buf_size) | |
08388c79 | 2251 | { |
b3dc46ff AB |
2252 | warning (_("Unable to access %s bytes of target " |
2253 | "memory at %s, halting search."), | |
2254 | pulongest (search_buf_size), hex_string (start_addr)); | |
08388c79 DE |
2255 | return -1; |
2256 | } | |
2257 | ||
2258 | /* Perform the search. | |
2259 | ||
2260 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
2261 | When we've scanned N bytes we copy the trailing bytes to the start and | |
2262 | read in another N bytes. */ | |
2263 | ||
2264 | while (search_space_len >= pattern_len) | |
2265 | { | |
2266 | gdb_byte *found_ptr; | |
325fac50 PA |
2267 | unsigned nr_search_bytes |
2268 | = std::min (search_space_len, (ULONGEST) search_buf_size); | |
08388c79 | 2269 | |
26fcd5d7 | 2270 | found_ptr = (gdb_byte *) memmem (search_buf.data (), nr_search_bytes, |
d7f3ff3e | 2271 | pattern, pattern_len); |
08388c79 DE |
2272 | |
2273 | if (found_ptr != NULL) | |
2274 | { | |
26fcd5d7 | 2275 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf.data ()); |
5d502164 | 2276 | |
08388c79 | 2277 | *found_addrp = found_addr; |
08388c79 DE |
2278 | return 1; |
2279 | } | |
2280 | ||
2281 | /* Not found in this chunk, skip to next chunk. */ | |
2282 | ||
2283 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
2284 | if (search_space_len >= chunk_size) | |
2285 | search_space_len -= chunk_size; | |
2286 | else | |
2287 | search_space_len = 0; | |
2288 | ||
2289 | if (search_space_len >= pattern_len) | |
2290 | { | |
2291 | unsigned keep_len = search_buf_size - chunk_size; | |
8a35fb51 | 2292 | CORE_ADDR read_addr = start_addr + chunk_size + keep_len; |
08388c79 DE |
2293 | int nr_to_read; |
2294 | ||
2295 | /* Copy the trailing part of the previous iteration to the front | |
2296 | of the buffer for the next iteration. */ | |
2297 | gdb_assert (keep_len == pattern_len - 1); | |
26fcd5d7 | 2298 | memcpy (&search_buf[0], &search_buf[chunk_size], keep_len); |
08388c79 | 2299 | |
325fac50 PA |
2300 | nr_to_read = std::min (search_space_len - keep_len, |
2301 | (ULONGEST) chunk_size); | |
08388c79 DE |
2302 | |
2303 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
26fcd5d7 | 2304 | &search_buf[keep_len], read_addr, |
08388c79 DE |
2305 | nr_to_read) != nr_to_read) |
2306 | { | |
b3dc46ff | 2307 | warning (_("Unable to access %s bytes of target " |
9b20d036 | 2308 | "memory at %s, halting search."), |
b3dc46ff | 2309 | plongest (nr_to_read), |
08388c79 | 2310 | hex_string (read_addr)); |
08388c79 DE |
2311 | return -1; |
2312 | } | |
2313 | ||
2314 | start_addr += chunk_size; | |
2315 | } | |
2316 | } | |
2317 | ||
2318 | /* Not found. */ | |
2319 | ||
08388c79 DE |
2320 | return 0; |
2321 | } | |
2322 | ||
58a5184e TT |
2323 | /* Default implementation of memory-searching. */ |
2324 | ||
2325 | static int | |
2326 | default_search_memory (struct target_ops *self, | |
2327 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2328 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2329 | CORE_ADDR *found_addrp) | |
2330 | { | |
2331 | /* Start over from the top of the target stack. */ | |
8b88a78e | 2332 | return simple_search_memory (current_top_target (), |
58a5184e TT |
2333 | start_addr, search_space_len, |
2334 | pattern, pattern_len, found_addrp); | |
2335 | } | |
2336 | ||
08388c79 DE |
2337 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the |
2338 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
2339 | ||
2340 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
2341 | requiring halting of the search (e.g. memory read error). | |
2342 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
2343 | ||
2344 | int | |
2345 | target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len, | |
2346 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2347 | CORE_ADDR *found_addrp) | |
2348 | { | |
8b88a78e | 2349 | return current_top_target ()->search_memory (start_addr, search_space_len, |
f6ac5f3d | 2350 | pattern, pattern_len, found_addrp); |
08388c79 DE |
2351 | } |
2352 | ||
8edfe269 DJ |
2353 | /* Look through the currently pushed targets. If none of them will |
2354 | be able to restart the currently running process, issue an error | |
2355 | message. */ | |
2356 | ||
2357 | void | |
2358 | target_require_runnable (void) | |
2359 | { | |
b6a8c27b | 2360 | for (target_ops *t = current_top_target (); t != NULL; t = t->beneath ()) |
8edfe269 DJ |
2361 | { |
2362 | /* If this target knows how to create a new program, then | |
2363 | assume we will still be able to after killing the current | |
2364 | one. Either killing and mourning will not pop T, or else | |
2365 | find_default_run_target will find it again. */ | |
f6ac5f3d | 2366 | if (t->can_create_inferior ()) |
8edfe269 DJ |
2367 | return; |
2368 | ||
548740d6 | 2369 | /* Do not worry about targets at certain strata that can not |
8edfe269 DJ |
2370 | create inferiors. Assume they will be pushed again if |
2371 | necessary, and continue to the process_stratum. */ | |
66b4deae | 2372 | if (t->stratum () > process_stratum) |
8edfe269 DJ |
2373 | continue; |
2374 | ||
3e43a32a MS |
2375 | error (_("The \"%s\" target does not support \"run\". " |
2376 | "Try \"help target\" or \"continue\"."), | |
f6ac5f3d | 2377 | t->shortname ()); |
8edfe269 DJ |
2378 | } |
2379 | ||
2380 | /* This function is only called if the target is running. In that | |
2381 | case there should have been a process_stratum target and it | |
c378eb4e | 2382 | should either know how to create inferiors, or not... */ |
9b20d036 | 2383 | internal_error (__FILE__, __LINE__, _("No targets found")); |
8edfe269 DJ |
2384 | } |
2385 | ||
6a3cb8e8 PA |
2386 | /* Whether GDB is allowed to fall back to the default run target for |
2387 | "run", "attach", etc. when no target is connected yet. */ | |
491144b5 | 2388 | static bool auto_connect_native_target = true; |
6a3cb8e8 PA |
2389 | |
2390 | static void | |
2391 | show_auto_connect_native_target (struct ui_file *file, int from_tty, | |
2392 | struct cmd_list_element *c, const char *value) | |
2393 | { | |
2394 | fprintf_filtered (file, | |
2395 | _("Whether GDB may automatically connect to the " | |
2396 | "native target is %s.\n"), | |
2397 | value); | |
2398 | } | |
2399 | ||
d9f719f1 PA |
2400 | /* A pointer to the target that can respond to "run" or "attach". |
2401 | Native targets are always singletons and instantiated early at GDB | |
2402 | startup. */ | |
2403 | static target_ops *the_native_target; | |
2404 | ||
2405 | /* See target.h. */ | |
2406 | ||
2407 | void | |
2408 | set_native_target (target_ops *target) | |
2409 | { | |
2410 | if (the_native_target != NULL) | |
2411 | internal_error (__FILE__, __LINE__, | |
2412 | _("native target already set (\"%s\")."), | |
2413 | the_native_target->longname ()); | |
2414 | ||
2415 | the_native_target = target; | |
2416 | } | |
2417 | ||
2418 | /* See target.h. */ | |
2419 | ||
2420 | target_ops * | |
2421 | get_native_target () | |
2422 | { | |
2423 | return the_native_target; | |
2424 | } | |
2425 | ||
c906108c SS |
2426 | /* Look through the list of possible targets for a target that can |
2427 | execute a run or attach command without any other data. This is | |
2428 | used to locate the default process stratum. | |
2429 | ||
5f667f2d PA |
2430 | If DO_MESG is not NULL, the result is always valid (error() is |
2431 | called for errors); else, return NULL on error. */ | |
c906108c SS |
2432 | |
2433 | static struct target_ops * | |
a121b7c1 | 2434 | find_default_run_target (const char *do_mesg) |
c906108c | 2435 | { |
d9f719f1 PA |
2436 | if (auto_connect_native_target && the_native_target != NULL) |
2437 | return the_native_target; | |
c906108c | 2438 | |
d9f719f1 PA |
2439 | if (do_mesg != NULL) |
2440 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
2441 | return NULL; | |
c906108c SS |
2442 | } |
2443 | ||
b3ccfe11 | 2444 | /* See target.h. */ |
c906108c | 2445 | |
b3ccfe11 TT |
2446 | struct target_ops * |
2447 | find_attach_target (void) | |
c906108c | 2448 | { |
b3ccfe11 | 2449 | /* If a target on the current stack can attach, use it. */ |
b6a8c27b | 2450 | for (target_ops *t = current_top_target (); t != NULL; t = t->beneath ()) |
b3ccfe11 | 2451 | { |
f6ac5f3d | 2452 | if (t->can_attach ()) |
d9f719f1 | 2453 | return t; |
b3ccfe11 | 2454 | } |
c906108c | 2455 | |
b3ccfe11 | 2456 | /* Otherwise, use the default run target for attaching. */ |
d9f719f1 | 2457 | return find_default_run_target ("attach"); |
b84876c2 PA |
2458 | } |
2459 | ||
b3ccfe11 | 2460 | /* See target.h. */ |
b84876c2 | 2461 | |
b3ccfe11 TT |
2462 | struct target_ops * |
2463 | find_run_target (void) | |
9908b566 | 2464 | { |
f6ac5f3d | 2465 | /* If a target on the current stack can run, use it. */ |
b6a8c27b | 2466 | for (target_ops *t = current_top_target (); t != NULL; t = t->beneath ()) |
b3ccfe11 | 2467 | { |
f6ac5f3d | 2468 | if (t->can_create_inferior ()) |
d9f719f1 | 2469 | return t; |
b3ccfe11 | 2470 | } |
5d502164 | 2471 | |
b3ccfe11 | 2472 | /* Otherwise, use the default run target. */ |
d9f719f1 | 2473 | return find_default_run_target ("run"); |
9908b566 VP |
2474 | } |
2475 | ||
f6ac5f3d PA |
2476 | bool |
2477 | target_ops::info_proc (const char *args, enum info_proc_what what) | |
2478 | { | |
2479 | return false; | |
2480 | } | |
2481 | ||
145b16a9 UW |
2482 | /* Implement the "info proc" command. */ |
2483 | ||
451b7c33 | 2484 | int |
7bc112c1 | 2485 | target_info_proc (const char *args, enum info_proc_what what) |
145b16a9 UW |
2486 | { |
2487 | struct target_ops *t; | |
2488 | ||
2489 | /* If we're already connected to something that can get us OS | |
2490 | related data, use it. Otherwise, try using the native | |
2491 | target. */ | |
f6ac5f3d PA |
2492 | t = find_target_at (process_stratum); |
2493 | if (t == NULL) | |
145b16a9 UW |
2494 | t = find_default_run_target (NULL); |
2495 | ||
b6a8c27b | 2496 | for (; t != NULL; t = t->beneath ()) |
145b16a9 | 2497 | { |
f6ac5f3d | 2498 | if (t->info_proc (args, what)) |
145b16a9 | 2499 | { |
145b16a9 UW |
2500 | if (targetdebug) |
2501 | fprintf_unfiltered (gdb_stdlog, | |
2502 | "target_info_proc (\"%s\", %d)\n", args, what); | |
2503 | ||
451b7c33 | 2504 | return 1; |
145b16a9 UW |
2505 | } |
2506 | } | |
2507 | ||
451b7c33 | 2508 | return 0; |
145b16a9 UW |
2509 | } |
2510 | ||
03583c20 | 2511 | static int |
2bfc0540 | 2512 | find_default_supports_disable_randomization (struct target_ops *self) |
03583c20 UW |
2513 | { |
2514 | struct target_ops *t; | |
2515 | ||
2516 | t = find_default_run_target (NULL); | |
f6ac5f3d PA |
2517 | if (t != NULL) |
2518 | return t->supports_disable_randomization (); | |
03583c20 UW |
2519 | return 0; |
2520 | } | |
2521 | ||
2522 | int | |
2523 | target_supports_disable_randomization (void) | |
2524 | { | |
8b88a78e | 2525 | return current_top_target ()->supports_disable_randomization (); |
03583c20 | 2526 | } |
9908b566 | 2527 | |
1fb77080 SDJ |
2528 | /* See target/target.h. */ |
2529 | ||
2530 | int | |
2531 | target_supports_multi_process (void) | |
2532 | { | |
8b88a78e | 2533 | return current_top_target ()->supports_multi_process (); |
1fb77080 SDJ |
2534 | } |
2535 | ||
b7b030ad TT |
2536 | /* See target.h. */ |
2537 | ||
9018be22 | 2538 | gdb::optional<gdb::char_vector> |
07e059b5 VP |
2539 | target_get_osdata (const char *type) |
2540 | { | |
07e059b5 VP |
2541 | struct target_ops *t; |
2542 | ||
739ef7fb PA |
2543 | /* If we're already connected to something that can get us OS |
2544 | related data, use it. Otherwise, try using the native | |
2545 | target. */ | |
f6ac5f3d PA |
2546 | t = find_target_at (process_stratum); |
2547 | if (t == NULL) | |
739ef7fb | 2548 | t = find_default_run_target ("get OS data"); |
07e059b5 VP |
2549 | |
2550 | if (!t) | |
9018be22 | 2551 | return {}; |
07e059b5 | 2552 | |
6d097e65 | 2553 | return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type); |
07e059b5 VP |
2554 | } |
2555 | ||
8eaff7cd TT |
2556 | /* Determine the current address space of thread PTID. */ |
2557 | ||
2558 | struct address_space * | |
2559 | target_thread_address_space (ptid_t ptid) | |
2560 | { | |
2561 | struct address_space *aspace; | |
2562 | ||
8b88a78e | 2563 | aspace = current_top_target ()->thread_address_space (ptid); |
8eaff7cd TT |
2564 | gdb_assert (aspace != NULL); |
2565 | ||
8eaff7cd TT |
2566 | return aspace; |
2567 | } | |
2568 | ||
b6a8c27b PA |
2569 | /* See target.h. */ |
2570 | ||
2571 | target_ops * | |
2572 | target_ops::beneath () const | |
2573 | { | |
5b6d1e4f | 2574 | return current_inferior ()->find_target_beneath (this); |
b6a8c27b PA |
2575 | } |
2576 | ||
f6ac5f3d PA |
2577 | void |
2578 | target_ops::close () | |
2579 | { | |
2580 | } | |
2581 | ||
2582 | bool | |
2583 | target_ops::can_attach () | |
2584 | { | |
2585 | return 0; | |
2586 | } | |
2587 | ||
2588 | void | |
2589 | target_ops::attach (const char *, int) | |
2590 | { | |
2591 | gdb_assert_not_reached ("target_ops::attach called"); | |
2592 | } | |
2593 | ||
2594 | bool | |
2595 | target_ops::can_create_inferior () | |
2596 | { | |
2597 | return 0; | |
2598 | } | |
2599 | ||
2600 | void | |
2601 | target_ops::create_inferior (const char *, const std::string &, | |
2602 | char **, int) | |
2603 | { | |
2604 | gdb_assert_not_reached ("target_ops::create_inferior called"); | |
2605 | } | |
2606 | ||
57810aa7 | 2607 | bool |
f6ac5f3d PA |
2608 | target_ops::can_run () |
2609 | { | |
57810aa7 | 2610 | return false; |
f6ac5f3d PA |
2611 | } |
2612 | ||
2613 | int | |
2614 | target_can_run () | |
2615 | { | |
b6a8c27b | 2616 | for (target_ops *t = current_top_target (); t != NULL; t = t->beneath ()) |
f6ac5f3d PA |
2617 | { |
2618 | if (t->can_run ()) | |
2619 | return 1; | |
2620 | } | |
2621 | ||
2622 | return 0; | |
2623 | } | |
7313baad UW |
2624 | |
2625 | /* Target file operations. */ | |
2626 | ||
2627 | static struct target_ops * | |
2628 | default_fileio_target (void) | |
2629 | { | |
f6ac5f3d PA |
2630 | struct target_ops *t; |
2631 | ||
7313baad UW |
2632 | /* If we're already connected to something that can perform |
2633 | file I/O, use it. Otherwise, try using the native target. */ | |
f6ac5f3d PA |
2634 | t = find_target_at (process_stratum); |
2635 | if (t != NULL) | |
2636 | return t; | |
2637 | return find_default_run_target ("file I/O"); | |
7313baad UW |
2638 | } |
2639 | ||
1c4b552b GB |
2640 | /* File handle for target file operations. */ |
2641 | ||
5ff79300 | 2642 | struct fileio_fh_t |
1c4b552b | 2643 | { |
20db9c52 PA |
2644 | /* The target on which this file is open. NULL if the target is |
2645 | meanwhile closed while the handle is open. */ | |
5ff79300 | 2646 | target_ops *target; |
1c4b552b GB |
2647 | |
2648 | /* The file descriptor on the target. */ | |
5ff79300 | 2649 | int target_fd; |
1c4b552b | 2650 | |
5ff79300 PA |
2651 | /* Check whether this fileio_fh_t represents a closed file. */ |
2652 | bool is_closed () | |
2653 | { | |
2654 | return target_fd < 0; | |
2655 | } | |
2656 | }; | |
1c4b552b GB |
2657 | |
2658 | /* Vector of currently open file handles. The value returned by | |
2659 | target_fileio_open and passed as the FD argument to other | |
2660 | target_fileio_* functions is an index into this vector. This | |
2661 | vector's entries are never freed; instead, files are marked as | |
2662 | closed, and the handle becomes available for reuse. */ | |
5ff79300 | 2663 | static std::vector<fileio_fh_t> fileio_fhandles; |
1c4b552b GB |
2664 | |
2665 | /* Index into fileio_fhandles of the lowest handle that might be | |
2666 | closed. This permits handle reuse without searching the whole | |
2667 | list each time a new file is opened. */ | |
2668 | static int lowest_closed_fd; | |
2669 | ||
20db9c52 PA |
2670 | /* Invalidate the target associated with open handles that were open |
2671 | on target TARG, since we're about to close (and maybe destroy) the | |
2672 | target. The handles remain open from the client's perspective, but | |
2673 | trying to do anything with them other than closing them will fail | |
2674 | with EIO. */ | |
2675 | ||
2676 | static void | |
2677 | fileio_handles_invalidate_target (target_ops *targ) | |
2678 | { | |
2679 | for (fileio_fh_t &fh : fileio_fhandles) | |
2680 | if (fh.target == targ) | |
2681 | fh.target = NULL; | |
2682 | } | |
2683 | ||
1c4b552b GB |
2684 | /* Acquire a target fileio file descriptor. */ |
2685 | ||
2686 | static int | |
5ff79300 | 2687 | acquire_fileio_fd (target_ops *target, int target_fd) |
1c4b552b | 2688 | { |
1c4b552b | 2689 | /* Search for closed handles to reuse. */ |
5ff79300 PA |
2690 | for (; lowest_closed_fd < fileio_fhandles.size (); lowest_closed_fd++) |
2691 | { | |
2692 | fileio_fh_t &fh = fileio_fhandles[lowest_closed_fd]; | |
2693 | ||
2694 | if (fh.is_closed ()) | |
2695 | break; | |
2696 | } | |
1c4b552b GB |
2697 | |
2698 | /* Push a new handle if no closed handles were found. */ | |
5ff79300 PA |
2699 | if (lowest_closed_fd == fileio_fhandles.size ()) |
2700 | fileio_fhandles.push_back (fileio_fh_t {target, target_fd}); | |
2701 | else | |
2702 | fileio_fhandles[lowest_closed_fd] = {target, target_fd}; | |
1c4b552b | 2703 | |
5ff79300 PA |
2704 | /* Should no longer be marked closed. */ |
2705 | gdb_assert (!fileio_fhandles[lowest_closed_fd].is_closed ()); | |
1c4b552b GB |
2706 | |
2707 | /* Return its index, and start the next lookup at | |
2708 | the next index. */ | |
2709 | return lowest_closed_fd++; | |
2710 | } | |
2711 | ||
2712 | /* Release a target fileio file descriptor. */ | |
2713 | ||
2714 | static void | |
2715 | release_fileio_fd (int fd, fileio_fh_t *fh) | |
2716 | { | |
5ff79300 | 2717 | fh->target_fd = -1; |
325fac50 | 2718 | lowest_closed_fd = std::min (lowest_closed_fd, fd); |
1c4b552b GB |
2719 | } |
2720 | ||
2721 | /* Return a pointer to the fileio_fhandle_t corresponding to FD. */ | |
2722 | ||
5ff79300 PA |
2723 | static fileio_fh_t * |
2724 | fileio_fd_to_fh (int fd) | |
2725 | { | |
2726 | return &fileio_fhandles[fd]; | |
2727 | } | |
1c4b552b | 2728 | |
f6ac5f3d PA |
2729 | |
2730 | /* Default implementations of file i/o methods. We don't want these | |
2731 | to delegate automatically, because we need to know which target | |
2732 | supported the method, in order to call it directly from within | |
2733 | pread/pwrite, etc. */ | |
2734 | ||
2735 | int | |
2736 | target_ops::fileio_open (struct inferior *inf, const char *filename, | |
2737 | int flags, int mode, int warn_if_slow, | |
2738 | int *target_errno) | |
2739 | { | |
2740 | *target_errno = FILEIO_ENOSYS; | |
2741 | return -1; | |
2742 | } | |
2743 | ||
2744 | int | |
2745 | target_ops::fileio_pwrite (int fd, const gdb_byte *write_buf, int len, | |
2746 | ULONGEST offset, int *target_errno) | |
2747 | { | |
2748 | *target_errno = FILEIO_ENOSYS; | |
2749 | return -1; | |
2750 | } | |
2751 | ||
2752 | int | |
2753 | target_ops::fileio_pread (int fd, gdb_byte *read_buf, int len, | |
2754 | ULONGEST offset, int *target_errno) | |
2755 | { | |
2756 | *target_errno = FILEIO_ENOSYS; | |
2757 | return -1; | |
2758 | } | |
2759 | ||
2760 | int | |
2761 | target_ops::fileio_fstat (int fd, struct stat *sb, int *target_errno) | |
2762 | { | |
2763 | *target_errno = FILEIO_ENOSYS; | |
2764 | return -1; | |
2765 | } | |
2766 | ||
2767 | int | |
2768 | target_ops::fileio_close (int fd, int *target_errno) | |
2769 | { | |
2770 | *target_errno = FILEIO_ENOSYS; | |
2771 | return -1; | |
2772 | } | |
2773 | ||
2774 | int | |
2775 | target_ops::fileio_unlink (struct inferior *inf, const char *filename, | |
2776 | int *target_errno) | |
2777 | { | |
2778 | *target_errno = FILEIO_ENOSYS; | |
2779 | return -1; | |
2780 | } | |
2781 | ||
2782 | gdb::optional<std::string> | |
2783 | target_ops::fileio_readlink (struct inferior *inf, const char *filename, | |
2784 | int *target_errno) | |
2785 | { | |
2786 | *target_errno = FILEIO_ENOSYS; | |
2787 | return {}; | |
2788 | } | |
2789 | ||
4313b8c0 GB |
2790 | /* Helper for target_fileio_open and |
2791 | target_fileio_open_warn_if_slow. */ | |
12e2a5fd | 2792 | |
4313b8c0 GB |
2793 | static int |
2794 | target_fileio_open_1 (struct inferior *inf, const char *filename, | |
2795 | int flags, int mode, int warn_if_slow, | |
2796 | int *target_errno) | |
7313baad | 2797 | { |
b6a8c27b | 2798 | for (target_ops *t = default_fileio_target (); t != NULL; t = t->beneath ()) |
7313baad | 2799 | { |
f6ac5f3d PA |
2800 | int fd = t->fileio_open (inf, filename, flags, mode, |
2801 | warn_if_slow, target_errno); | |
7313baad | 2802 | |
f6ac5f3d PA |
2803 | if (fd == -1 && *target_errno == FILEIO_ENOSYS) |
2804 | continue; | |
1c4b552b | 2805 | |
f6ac5f3d PA |
2806 | if (fd < 0) |
2807 | fd = -1; | |
2808 | else | |
2809 | fd = acquire_fileio_fd (t, fd); | |
2810 | ||
2811 | if (targetdebug) | |
2812 | fprintf_unfiltered (gdb_stdlog, | |
4313b8c0 | 2813 | "target_fileio_open (%d,%s,0x%x,0%o,%d)" |
07c138c8 GB |
2814 | " = %d (%d)\n", |
2815 | inf == NULL ? 0 : inf->num, | |
7313baad | 2816 | filename, flags, mode, |
4313b8c0 GB |
2817 | warn_if_slow, fd, |
2818 | fd != -1 ? 0 : *target_errno); | |
f6ac5f3d | 2819 | return fd; |
7313baad UW |
2820 | } |
2821 | ||
2822 | *target_errno = FILEIO_ENOSYS; | |
2823 | return -1; | |
2824 | } | |
2825 | ||
12e2a5fd GB |
2826 | /* See target.h. */ |
2827 | ||
4313b8c0 GB |
2828 | int |
2829 | target_fileio_open (struct inferior *inf, const char *filename, | |
2830 | int flags, int mode, int *target_errno) | |
2831 | { | |
2832 | return target_fileio_open_1 (inf, filename, flags, mode, 0, | |
2833 | target_errno); | |
2834 | } | |
2835 | ||
2836 | /* See target.h. */ | |
2837 | ||
2838 | int | |
2839 | target_fileio_open_warn_if_slow (struct inferior *inf, | |
2840 | const char *filename, | |
2841 | int flags, int mode, int *target_errno) | |
2842 | { | |
2843 | return target_fileio_open_1 (inf, filename, flags, mode, 1, | |
2844 | target_errno); | |
2845 | } | |
2846 | ||
2847 | /* See target.h. */ | |
2848 | ||
7313baad UW |
2849 | int |
2850 | target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len, | |
2851 | ULONGEST offset, int *target_errno) | |
2852 | { | |
1c4b552b GB |
2853 | fileio_fh_t *fh = fileio_fd_to_fh (fd); |
2854 | int ret = -1; | |
7313baad | 2855 | |
5ff79300 | 2856 | if (fh->is_closed ()) |
1c4b552b | 2857 | *target_errno = EBADF; |
20db9c52 PA |
2858 | else if (fh->target == NULL) |
2859 | *target_errno = EIO; | |
1c4b552b | 2860 | else |
f6ac5f3d PA |
2861 | ret = fh->target->fileio_pwrite (fh->target_fd, write_buf, |
2862 | len, offset, target_errno); | |
7313baad | 2863 | |
1c4b552b GB |
2864 | if (targetdebug) |
2865 | fprintf_unfiltered (gdb_stdlog, | |
2866 | "target_fileio_pwrite (%d,...,%d,%s) " | |
2867 | "= %d (%d)\n", | |
2868 | fd, len, pulongest (offset), | |
2869 | ret, ret != -1 ? 0 : *target_errno); | |
2870 | return ret; | |
7313baad UW |
2871 | } |
2872 | ||
12e2a5fd GB |
2873 | /* See target.h. */ |
2874 | ||
7313baad UW |
2875 | int |
2876 | target_fileio_pread (int fd, gdb_byte *read_buf, int len, | |
2877 | ULONGEST offset, int *target_errno) | |
2878 | { | |
1c4b552b GB |
2879 | fileio_fh_t *fh = fileio_fd_to_fh (fd); |
2880 | int ret = -1; | |
7313baad | 2881 | |
5ff79300 | 2882 | if (fh->is_closed ()) |
1c4b552b | 2883 | *target_errno = EBADF; |
20db9c52 PA |
2884 | else if (fh->target == NULL) |
2885 | *target_errno = EIO; | |
1c4b552b | 2886 | else |
f6ac5f3d PA |
2887 | ret = fh->target->fileio_pread (fh->target_fd, read_buf, |
2888 | len, offset, target_errno); | |
7313baad | 2889 | |
1c4b552b GB |
2890 | if (targetdebug) |
2891 | fprintf_unfiltered (gdb_stdlog, | |
2892 | "target_fileio_pread (%d,...,%d,%s) " | |
2893 | "= %d (%d)\n", | |
2894 | fd, len, pulongest (offset), | |
2895 | ret, ret != -1 ? 0 : *target_errno); | |
9b15c1f0 GB |
2896 | return ret; |
2897 | } | |
2898 | ||
2899 | /* See target.h. */ | |
12e2a5fd | 2900 | |
9b15c1f0 GB |
2901 | int |
2902 | target_fileio_fstat (int fd, struct stat *sb, int *target_errno) | |
2903 | { | |
2904 | fileio_fh_t *fh = fileio_fd_to_fh (fd); | |
2905 | int ret = -1; | |
2906 | ||
5ff79300 | 2907 | if (fh->is_closed ()) |
9b15c1f0 | 2908 | *target_errno = EBADF; |
20db9c52 PA |
2909 | else if (fh->target == NULL) |
2910 | *target_errno = EIO; | |
9b15c1f0 | 2911 | else |
f6ac5f3d | 2912 | ret = fh->target->fileio_fstat (fh->target_fd, sb, target_errno); |
9b15c1f0 GB |
2913 | |
2914 | if (targetdebug) | |
2915 | fprintf_unfiltered (gdb_stdlog, | |
2916 | "target_fileio_fstat (%d) = %d (%d)\n", | |
2917 | fd, ret, ret != -1 ? 0 : *target_errno); | |
1c4b552b | 2918 | return ret; |
7313baad UW |
2919 | } |
2920 | ||
12e2a5fd GB |
2921 | /* See target.h. */ |
2922 | ||
7313baad UW |
2923 | int |
2924 | target_fileio_close (int fd, int *target_errno) | |
2925 | { | |
1c4b552b GB |
2926 | fileio_fh_t *fh = fileio_fd_to_fh (fd); |
2927 | int ret = -1; | |
7313baad | 2928 | |
5ff79300 | 2929 | if (fh->is_closed ()) |
1c4b552b GB |
2930 | *target_errno = EBADF; |
2931 | else | |
7313baad | 2932 | { |
20db9c52 | 2933 | if (fh->target != NULL) |
f6ac5f3d PA |
2934 | ret = fh->target->fileio_close (fh->target_fd, |
2935 | target_errno); | |
20db9c52 PA |
2936 | else |
2937 | ret = 0; | |
1c4b552b | 2938 | release_fileio_fd (fd, fh); |
7313baad UW |
2939 | } |
2940 | ||
1c4b552b GB |
2941 | if (targetdebug) |
2942 | fprintf_unfiltered (gdb_stdlog, | |
2943 | "target_fileio_close (%d) = %d (%d)\n", | |
2944 | fd, ret, ret != -1 ? 0 : *target_errno); | |
2945 | return ret; | |
7313baad UW |
2946 | } |
2947 | ||
12e2a5fd GB |
2948 | /* See target.h. */ |
2949 | ||
7313baad | 2950 | int |
07c138c8 GB |
2951 | target_fileio_unlink (struct inferior *inf, const char *filename, |
2952 | int *target_errno) | |
7313baad | 2953 | { |
b6a8c27b | 2954 | for (target_ops *t = default_fileio_target (); t != NULL; t = t->beneath ()) |
7313baad | 2955 | { |
f6ac5f3d | 2956 | int ret = t->fileio_unlink (inf, filename, target_errno); |
7313baad | 2957 | |
f6ac5f3d PA |
2958 | if (ret == -1 && *target_errno == FILEIO_ENOSYS) |
2959 | continue; | |
2960 | ||
2961 | if (targetdebug) | |
2962 | fprintf_unfiltered (gdb_stdlog, | |
2963 | "target_fileio_unlink (%d,%s)" | |
2964 | " = %d (%d)\n", | |
2965 | inf == NULL ? 0 : inf->num, filename, | |
2966 | ret, ret != -1 ? 0 : *target_errno); | |
2967 | return ret; | |
7313baad UW |
2968 | } |
2969 | ||
2970 | *target_errno = FILEIO_ENOSYS; | |
2971 | return -1; | |
2972 | } | |
2973 | ||
12e2a5fd GB |
2974 | /* See target.h. */ |
2975 | ||
e0d3522b | 2976 | gdb::optional<std::string> |
07c138c8 GB |
2977 | target_fileio_readlink (struct inferior *inf, const char *filename, |
2978 | int *target_errno) | |
b9e7b9c3 | 2979 | { |
b6a8c27b | 2980 | for (target_ops *t = default_fileio_target (); t != NULL; t = t->beneath ()) |
b9e7b9c3 | 2981 | { |
f6ac5f3d PA |
2982 | gdb::optional<std::string> ret |
2983 | = t->fileio_readlink (inf, filename, target_errno); | |
b9e7b9c3 | 2984 | |
f6ac5f3d PA |
2985 | if (!ret.has_value () && *target_errno == FILEIO_ENOSYS) |
2986 | continue; | |
2987 | ||
2988 | if (targetdebug) | |
2989 | fprintf_unfiltered (gdb_stdlog, | |
2990 | "target_fileio_readlink (%d,%s)" | |
2991 | " = %s (%d)\n", | |
2992 | inf == NULL ? 0 : inf->num, | |
2993 | filename, ret ? ret->c_str () : "(nil)", | |
2994 | ret ? 0 : *target_errno); | |
2995 | return ret; | |
b9e7b9c3 UW |
2996 | } |
2997 | ||
2998 | *target_errno = FILEIO_ENOSYS; | |
e0d3522b | 2999 | return {}; |
b9e7b9c3 UW |
3000 | } |
3001 | ||
770623f7 TT |
3002 | /* Like scoped_fd, but specific to target fileio. */ |
3003 | ||
3004 | class scoped_target_fd | |
7313baad | 3005 | { |
770623f7 TT |
3006 | public: |
3007 | explicit scoped_target_fd (int fd) noexcept | |
3008 | : m_fd (fd) | |
3009 | { | |
3010 | } | |
7313baad | 3011 | |
770623f7 TT |
3012 | ~scoped_target_fd () |
3013 | { | |
3014 | if (m_fd >= 0) | |
3015 | { | |
3016 | int target_errno; | |
3017 | ||
3018 | target_fileio_close (m_fd, &target_errno); | |
3019 | } | |
3020 | } | |
3021 | ||
3022 | DISABLE_COPY_AND_ASSIGN (scoped_target_fd); | |
3023 | ||
3024 | int get () const noexcept | |
3025 | { | |
3026 | return m_fd; | |
3027 | } | |
3028 | ||
3029 | private: | |
3030 | int m_fd; | |
3031 | }; | |
7313baad | 3032 | |
07c138c8 GB |
3033 | /* Read target file FILENAME, in the filesystem as seen by INF. If |
3034 | INF is NULL, use the filesystem seen by the debugger (GDB or, for | |
3035 | remote targets, the remote stub). Store the result in *BUF_P and | |
3036 | return the size of the transferred data. PADDING additional bytes | |
3037 | are available in *BUF_P. This is a helper function for | |
3038 | target_fileio_read_alloc; see the declaration of that function for | |
3039 | more information. */ | |
7313baad | 3040 | |
f7af1fcd JK |
3041 | static LONGEST |
3042 | target_fileio_read_alloc_1 (struct inferior *inf, const char *filename, | |
3043 | gdb_byte **buf_p, int padding) | |
3044 | { | |
db1ff28b JK |
3045 | size_t buf_alloc, buf_pos; |
3046 | gdb_byte *buf; | |
3047 | LONGEST n; | |
db1ff28b | 3048 | int target_errno; |
f7af1fcd | 3049 | |
770623f7 TT |
3050 | scoped_target_fd fd (target_fileio_open (inf, filename, FILEIO_O_RDONLY, |
3051 | 0700, &target_errno)); | |
3052 | if (fd.get () == -1) | |
f7af1fcd JK |
3053 | return -1; |
3054 | ||
db1ff28b JK |
3055 | /* Start by reading up to 4K at a time. The target will throttle |
3056 | this number down if necessary. */ | |
3057 | buf_alloc = 4096; | |
224c3ddb | 3058 | buf = (gdb_byte *) xmalloc (buf_alloc); |
db1ff28b JK |
3059 | buf_pos = 0; |
3060 | while (1) | |
3061 | { | |
770623f7 | 3062 | n = target_fileio_pread (fd.get (), &buf[buf_pos], |
db1ff28b JK |
3063 | buf_alloc - buf_pos - padding, buf_pos, |
3064 | &target_errno); | |
3065 | if (n < 0) | |
3066 | { | |
3067 | /* An error occurred. */ | |
db1ff28b JK |
3068 | xfree (buf); |
3069 | return -1; | |
3070 | } | |
3071 | else if (n == 0) | |
3072 | { | |
3073 | /* Read all there was. */ | |
db1ff28b JK |
3074 | if (buf_pos == 0) |
3075 | xfree (buf); | |
3076 | else | |
3077 | *buf_p = buf; | |
3078 | return buf_pos; | |
3079 | } | |
3080 | ||
3081 | buf_pos += n; | |
3082 | ||
3083 | /* If the buffer is filling up, expand it. */ | |
3084 | if (buf_alloc < buf_pos * 2) | |
3085 | { | |
3086 | buf_alloc *= 2; | |
224c3ddb | 3087 | buf = (gdb_byte *) xrealloc (buf, buf_alloc); |
db1ff28b JK |
3088 | } |
3089 | ||
3090 | QUIT; | |
3091 | } | |
f7af1fcd JK |
3092 | } |
3093 | ||
12e2a5fd | 3094 | /* See target.h. */ |
7313baad UW |
3095 | |
3096 | LONGEST | |
07c138c8 GB |
3097 | target_fileio_read_alloc (struct inferior *inf, const char *filename, |
3098 | gdb_byte **buf_p) | |
7313baad | 3099 | { |
07c138c8 | 3100 | return target_fileio_read_alloc_1 (inf, filename, buf_p, 0); |
7313baad UW |
3101 | } |
3102 | ||
db1ff28b | 3103 | /* See target.h. */ |
f7af1fcd | 3104 | |
87028b87 | 3105 | gdb::unique_xmalloc_ptr<char> |
f7af1fcd JK |
3106 | target_fileio_read_stralloc (struct inferior *inf, const char *filename) |
3107 | { | |
db1ff28b JK |
3108 | gdb_byte *buffer; |
3109 | char *bufstr; | |
3110 | LONGEST i, transferred; | |
3111 | ||
3112 | transferred = target_fileio_read_alloc_1 (inf, filename, &buffer, 1); | |
3113 | bufstr = (char *) buffer; | |
3114 | ||
3115 | if (transferred < 0) | |
87028b87 | 3116 | return gdb::unique_xmalloc_ptr<char> (nullptr); |
db1ff28b JK |
3117 | |
3118 | if (transferred == 0) | |
b02f78f9 | 3119 | return make_unique_xstrdup (""); |
db1ff28b JK |
3120 | |
3121 | bufstr[transferred] = 0; | |
3122 | ||
3123 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
3124 | for (i = strlen (bufstr); i < transferred; i++) | |
3125 | if (bufstr[i] != 0) | |
3126 | { | |
3127 | warning (_("target file %s " | |
3128 | "contained unexpected null characters"), | |
3129 | filename); | |
3130 | break; | |
3131 | } | |
3132 | ||
87028b87 | 3133 | return gdb::unique_xmalloc_ptr<char> (bufstr); |
f7af1fcd | 3134 | } |
7313baad | 3135 | |
db1ff28b | 3136 | |
e0d24f8d | 3137 | static int |
31568a15 TT |
3138 | default_region_ok_for_hw_watchpoint (struct target_ops *self, |
3139 | CORE_ADDR addr, int len) | |
e0d24f8d | 3140 | { |
f5656ead | 3141 | return (len <= gdbarch_ptr_bit (target_gdbarch ()) / TARGET_CHAR_BIT); |
ccaa32c7 GS |
3142 | } |
3143 | ||
5009afc5 AS |
3144 | static int |
3145 | default_watchpoint_addr_within_range (struct target_ops *target, | |
3146 | CORE_ADDR addr, | |
3147 | CORE_ADDR start, int length) | |
3148 | { | |
3149 | return addr >= start && addr < start + length; | |
3150 | } | |
3151 | ||
8b06beed TT |
3152 | /* See target.h. */ |
3153 | ||
a1740ee1 PA |
3154 | target_ops * |
3155 | target_stack::find_beneath (const target_ops *t) const | |
8b06beed | 3156 | { |
a1740ee1 | 3157 | /* Look for a non-empty slot at stratum levels beneath T's. */ |
66b4deae | 3158 | for (int stratum = t->stratum () - 1; stratum >= 0; --stratum) |
a1740ee1 PA |
3159 | if (m_stack[stratum] != NULL) |
3160 | return m_stack[stratum]; | |
8b06beed TT |
3161 | |
3162 | return NULL; | |
3163 | } | |
3164 | ||
a1740ee1 PA |
3165 | /* See target.h. */ |
3166 | ||
3167 | struct target_ops * | |
3168 | find_target_at (enum strata stratum) | |
3169 | { | |
5b6d1e4f | 3170 | return current_inferior ()->target_at (stratum); |
a1740ee1 PA |
3171 | } |
3172 | ||
c906108c | 3173 | \f |
0f48b757 PA |
3174 | |
3175 | /* See target.h */ | |
3176 | ||
3177 | void | |
3178 | target_announce_detach (int from_tty) | |
3179 | { | |
3180 | pid_t pid; | |
a121b7c1 | 3181 | const char *exec_file; |
0f48b757 PA |
3182 | |
3183 | if (!from_tty) | |
3184 | return; | |
3185 | ||
3186 | exec_file = get_exec_file (0); | |
3187 | if (exec_file == NULL) | |
3188 | exec_file = ""; | |
3189 | ||
e99b03dc | 3190 | pid = inferior_ptid.pid (); |
0f48b757 | 3191 | printf_unfiltered (_("Detaching from program: %s, %s\n"), exec_file, |
a068643d | 3192 | target_pid_to_str (ptid_t (pid)).c_str ()); |
0f48b757 PA |
3193 | } |
3194 | ||
c906108c SS |
3195 | /* The inferior process has died. Long live the inferior! */ |
3196 | ||
3197 | void | |
fba45db2 | 3198 | generic_mourn_inferior (void) |
c906108c | 3199 | { |
00431a78 | 3200 | inferior *inf = current_inferior (); |
c906108c | 3201 | |
39f77062 | 3202 | inferior_ptid = null_ptid; |
7f9f62ba | 3203 | |
f59f708a PA |
3204 | /* Mark breakpoints uninserted in case something tries to delete a |
3205 | breakpoint while we delete the inferior's threads (which would | |
3206 | fail, since the inferior is long gone). */ | |
3207 | mark_breakpoints_out (); | |
3208 | ||
00431a78 PA |
3209 | if (inf->pid != 0) |
3210 | exit_inferior (inf); | |
7f9f62ba | 3211 | |
f59f708a PA |
3212 | /* Note this wipes step-resume breakpoints, so needs to be done |
3213 | after exit_inferior, which ends up referencing the step-resume | |
3214 | breakpoints through clear_thread_inferior_resources. */ | |
c906108c | 3215 | breakpoint_init_inferior (inf_exited); |
f59f708a | 3216 | |
c906108c SS |
3217 | registers_changed (); |
3218 | ||
c906108c SS |
3219 | reopen_exec_file (); |
3220 | reinit_frame_cache (); | |
3221 | ||
9a4105ab AC |
3222 | if (deprecated_detach_hook) |
3223 | deprecated_detach_hook (); | |
c906108c SS |
3224 | } |
3225 | \f | |
fd0a2a6f MK |
3226 | /* Convert a normal process ID to a string. Returns the string in a |
3227 | static buffer. */ | |
c906108c | 3228 | |
a068643d | 3229 | std::string |
39f77062 | 3230 | normal_pid_to_str (ptid_t ptid) |
c906108c | 3231 | { |
a068643d | 3232 | return string_printf ("process %d", ptid.pid ()); |
c906108c SS |
3233 | } |
3234 | ||
a068643d | 3235 | static std::string |
770234d3 | 3236 | default_pid_to_str (struct target_ops *ops, ptid_t ptid) |
117de6a9 PA |
3237 | { |
3238 | return normal_pid_to_str (ptid); | |
3239 | } | |
3240 | ||
9b4eba8e HZ |
3241 | /* Error-catcher for target_find_memory_regions. */ |
3242 | static int | |
2e73927c TT |
3243 | dummy_find_memory_regions (struct target_ops *self, |
3244 | find_memory_region_ftype ignore1, void *ignore2) | |
be4d1333 | 3245 | { |
9b4eba8e | 3246 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3247 | return 0; |
3248 | } | |
3249 | ||
9b4eba8e HZ |
3250 | /* Error-catcher for target_make_corefile_notes. */ |
3251 | static char * | |
fc6691b2 TT |
3252 | dummy_make_corefile_notes (struct target_ops *self, |
3253 | bfd *ignore1, int *ignore2) | |
be4d1333 | 3254 | { |
9b4eba8e | 3255 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3256 | return NULL; |
3257 | } | |
3258 | ||
f6ac5f3d PA |
3259 | #include "target-delegates.c" |
3260 | ||
06b5b831 TT |
3261 | /* The initial current target, so that there is always a semi-valid |
3262 | current target. */ | |
3263 | ||
3264 | static dummy_target the_dummy_target; | |
c906108c | 3265 | |
5b6d1e4f PA |
3266 | /* See target.h. */ |
3267 | ||
3268 | target_ops * | |
3269 | get_dummy_target () | |
3270 | { | |
3271 | return &the_dummy_target; | |
3272 | } | |
3273 | ||
d9f719f1 PA |
3274 | static const target_info dummy_target_info = { |
3275 | "None", | |
3276 | N_("None"), | |
3277 | "" | |
3278 | }; | |
3279 | ||
66b4deae PA |
3280 | strata |
3281 | dummy_target::stratum () const | |
f6ac5f3d | 3282 | { |
66b4deae | 3283 | return dummy_stratum; |
f6ac5f3d PA |
3284 | } |
3285 | ||
66b4deae PA |
3286 | strata |
3287 | debug_target::stratum () const | |
f6ac5f3d | 3288 | { |
66b4deae | 3289 | return debug_stratum; |
f6ac5f3d PA |
3290 | } |
3291 | ||
d9f719f1 PA |
3292 | const target_info & |
3293 | dummy_target::info () const | |
f6ac5f3d | 3294 | { |
d9f719f1 | 3295 | return dummy_target_info; |
f6ac5f3d PA |
3296 | } |
3297 | ||
d9f719f1 PA |
3298 | const target_info & |
3299 | debug_target::info () const | |
f6ac5f3d | 3300 | { |
b6a8c27b | 3301 | return beneath ()->info (); |
f6ac5f3d PA |
3302 | } |
3303 | ||
c906108c | 3304 | \f |
c906108c | 3305 | |
f1c07ab0 | 3306 | void |
460014f5 | 3307 | target_close (struct target_ops *targ) |
f1c07ab0 | 3308 | { |
7fdc1521 TT |
3309 | gdb_assert (!target_is_pushed (targ)); |
3310 | ||
20db9c52 PA |
3311 | fileio_handles_invalidate_target (targ); |
3312 | ||
f6ac5f3d | 3313 | targ->close (); |
947b8855 PA |
3314 | |
3315 | if (targetdebug) | |
460014f5 | 3316 | fprintf_unfiltered (gdb_stdlog, "target_close ()\n"); |
f1c07ab0 AC |
3317 | } |
3318 | ||
28439f5e PA |
3319 | int |
3320 | target_thread_alive (ptid_t ptid) | |
c906108c | 3321 | { |
8b88a78e | 3322 | return current_top_target ()->thread_alive (ptid); |
28439f5e PA |
3323 | } |
3324 | ||
3325 | void | |
e8032dde | 3326 | target_update_thread_list (void) |
28439f5e | 3327 | { |
8b88a78e | 3328 | current_top_target ()->update_thread_list (); |
c906108c SS |
3329 | } |
3330 | ||
d914c394 SS |
3331 | void |
3332 | target_stop (ptid_t ptid) | |
3333 | { | |
3334 | if (!may_stop) | |
3335 | { | |
3336 | warning (_("May not interrupt or stop the target, ignoring attempt")); | |
3337 | return; | |
3338 | } | |
3339 | ||
8b88a78e | 3340 | current_top_target ()->stop (ptid); |
d914c394 SS |
3341 | } |
3342 | ||
bfedc46a | 3343 | void |
e671cd59 | 3344 | target_interrupt () |
bfedc46a PA |
3345 | { |
3346 | if (!may_stop) | |
3347 | { | |
3348 | warning (_("May not interrupt or stop the target, ignoring attempt")); | |
3349 | return; | |
3350 | } | |
3351 | ||
8b88a78e | 3352 | current_top_target ()->interrupt (); |
bfedc46a PA |
3353 | } |
3354 | ||
abc56d60 PA |
3355 | /* See target.h. */ |
3356 | ||
93692b58 PA |
3357 | void |
3358 | target_pass_ctrlc (void) | |
3359 | { | |
5b6d1e4f PA |
3360 | /* Pass the Ctrl-C to the first target that has a thread |
3361 | running. */ | |
3362 | for (inferior *inf : all_inferiors ()) | |
3363 | { | |
3364 | target_ops *proc_target = inf->process_target (); | |
3365 | if (proc_target == NULL) | |
3366 | continue; | |
3367 | ||
3368 | for (thread_info *thr : inf->threads ()) | |
3369 | { | |
3370 | /* A thread can be THREAD_STOPPED and executing, while | |
3371 | running an infcall. */ | |
3372 | if (thr->state == THREAD_RUNNING || thr->executing) | |
3373 | { | |
3374 | /* We can get here quite deep in target layers. Avoid | |
3375 | switching thread context or anything that would | |
3376 | communicate with the target (e.g., to fetch | |
3377 | registers), or flushing e.g., the frame cache. We | |
3378 | just switch inferior in order to be able to call | |
3379 | through the target_stack. */ | |
3380 | scoped_restore_current_inferior restore_inferior; | |
3381 | set_current_inferior (inf); | |
3382 | current_top_target ()->pass_ctrlc (); | |
3383 | return; | |
3384 | } | |
3385 | } | |
3386 | } | |
93692b58 PA |
3387 | } |
3388 | ||
3389 | /* See target.h. */ | |
3390 | ||
3391 | void | |
3392 | default_target_pass_ctrlc (struct target_ops *ops) | |
3393 | { | |
e671cd59 | 3394 | target_interrupt (); |
93692b58 PA |
3395 | } |
3396 | ||
f8c1d06b GB |
3397 | /* See target/target.h. */ |
3398 | ||
3399 | void | |
03f4463b | 3400 | target_stop_and_wait (ptid_t ptid) |
f8c1d06b GB |
3401 | { |
3402 | struct target_waitstatus status; | |
491144b5 | 3403 | bool was_non_stop = non_stop; |
f8c1d06b | 3404 | |
491144b5 | 3405 | non_stop = true; |
f8c1d06b GB |
3406 | target_stop (ptid); |
3407 | ||
3408 | memset (&status, 0, sizeof (status)); | |
3409 | target_wait (ptid, &status, 0); | |
3410 | ||
3411 | non_stop = was_non_stop; | |
3412 | } | |
3413 | ||
3414 | /* See target/target.h. */ | |
3415 | ||
3416 | void | |
03f4463b | 3417 | target_continue_no_signal (ptid_t ptid) |
f8c1d06b GB |
3418 | { |
3419 | target_resume (ptid, 0, GDB_SIGNAL_0); | |
3420 | } | |
3421 | ||
049a8570 SDJ |
3422 | /* See target/target.h. */ |
3423 | ||
3424 | void | |
3425 | target_continue (ptid_t ptid, enum gdb_signal signal) | |
3426 | { | |
3427 | target_resume (ptid, 0, signal); | |
3428 | } | |
3429 | ||
fdbac7d8 | 3430 | /* Concatenate ELEM to LIST, a comma-separated list. */ |
09826ec5 | 3431 | |
09ce46f2 SM |
3432 | static void |
3433 | str_comma_list_concat_elem (std::string *list, const char *elem) | |
09826ec5 | 3434 | { |
09ce46f2 SM |
3435 | if (!list->empty ()) |
3436 | list->append (", "); | |
3437 | ||
3438 | list->append (elem); | |
09826ec5 PA |
3439 | } |
3440 | ||
3441 | /* Helper for target_options_to_string. If OPT is present in | |
3442 | TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET. | |
09ce46f2 | 3443 | OPT is removed from TARGET_OPTIONS. */ |
09826ec5 | 3444 | |
09ce46f2 SM |
3445 | static void |
3446 | do_option (int *target_options, std::string *ret, | |
a121b7c1 | 3447 | int opt, const char *opt_str) |
09826ec5 PA |
3448 | { |
3449 | if ((*target_options & opt) != 0) | |
3450 | { | |
09ce46f2 | 3451 | str_comma_list_concat_elem (ret, opt_str); |
09826ec5 PA |
3452 | *target_options &= ~opt; |
3453 | } | |
09826ec5 PA |
3454 | } |
3455 | ||
fdbac7d8 SM |
3456 | /* See target.h. */ |
3457 | ||
09ce46f2 | 3458 | std::string |
09826ec5 PA |
3459 | target_options_to_string (int target_options) |
3460 | { | |
09ce46f2 | 3461 | std::string ret; |
09826ec5 PA |
3462 | |
3463 | #define DO_TARG_OPTION(OPT) \ | |
09ce46f2 | 3464 | do_option (&target_options, &ret, OPT, #OPT) |
09826ec5 PA |
3465 | |
3466 | DO_TARG_OPTION (TARGET_WNOHANG); | |
3467 | ||
3468 | if (target_options != 0) | |
09ce46f2 | 3469 | str_comma_list_concat_elem (&ret, "unknown???"); |
09826ec5 | 3470 | |
09826ec5 PA |
3471 | return ret; |
3472 | } | |
3473 | ||
28439f5e PA |
3474 | void |
3475 | target_fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 3476 | { |
8b88a78e | 3477 | current_top_target ()->fetch_registers (regcache, regno); |
ad5989bd | 3478 | if (targetdebug) |
ef79d9a3 | 3479 | regcache->debug_print_register ("target_fetch_registers", regno); |
c906108c SS |
3480 | } |
3481 | ||
28439f5e PA |
3482 | void |
3483 | target_store_registers (struct regcache *regcache, int regno) | |
c906108c | 3484 | { |
d914c394 SS |
3485 | if (!may_write_registers) |
3486 | error (_("Writing to registers is not allowed (regno %d)"), regno); | |
3487 | ||
8b88a78e | 3488 | current_top_target ()->store_registers (regcache, regno); |
6b84065d | 3489 | if (targetdebug) |
28439f5e | 3490 | { |
ef79d9a3 | 3491 | regcache->debug_print_register ("target_store_registers", regno); |
28439f5e | 3492 | } |
c906108c SS |
3493 | } |
3494 | ||
dc146f7c VP |
3495 | int |
3496 | target_core_of_thread (ptid_t ptid) | |
3497 | { | |
8b88a78e | 3498 | return current_top_target ()->core_of_thread (ptid); |
dc146f7c VP |
3499 | } |
3500 | ||
936d2992 PA |
3501 | int |
3502 | simple_verify_memory (struct target_ops *ops, | |
3503 | const gdb_byte *data, CORE_ADDR lma, ULONGEST size) | |
3504 | { | |
3505 | LONGEST total_xfered = 0; | |
3506 | ||
3507 | while (total_xfered < size) | |
3508 | { | |
3509 | ULONGEST xfered_len; | |
3510 | enum target_xfer_status status; | |
3511 | gdb_byte buf[1024]; | |
768adc05 | 3512 | ULONGEST howmuch = std::min<ULONGEST> (sizeof (buf), size - total_xfered); |
936d2992 PA |
3513 | |
3514 | status = target_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
3515 | buf, NULL, lma + total_xfered, howmuch, | |
3516 | &xfered_len); | |
3517 | if (status == TARGET_XFER_OK | |
3518 | && memcmp (data + total_xfered, buf, xfered_len) == 0) | |
3519 | { | |
3520 | total_xfered += xfered_len; | |
3521 | QUIT; | |
3522 | } | |
3523 | else | |
3524 | return 0; | |
3525 | } | |
3526 | return 1; | |
3527 | } | |
3528 | ||
3529 | /* Default implementation of memory verification. */ | |
3530 | ||
3531 | static int | |
3532 | default_verify_memory (struct target_ops *self, | |
3533 | const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size) | |
3534 | { | |
3535 | /* Start over from the top of the target stack. */ | |
8b88a78e | 3536 | return simple_verify_memory (current_top_target (), |
936d2992 PA |
3537 | data, memaddr, size); |
3538 | } | |
3539 | ||
4a5e7a5b PA |
3540 | int |
3541 | target_verify_memory (const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size) | |
3542 | { | |
8b88a78e | 3543 | return current_top_target ()->verify_memory (data, memaddr, size); |
4a5e7a5b PA |
3544 | } |
3545 | ||
9c06b0b4 TJB |
3546 | /* The documentation for this function is in its prototype declaration in |
3547 | target.h. */ | |
3548 | ||
3549 | int | |
f4b0a671 SM |
3550 | target_insert_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, |
3551 | enum target_hw_bp_type rw) | |
9c06b0b4 | 3552 | { |
8b88a78e | 3553 | return current_top_target ()->insert_mask_watchpoint (addr, mask, rw); |
9c06b0b4 TJB |
3554 | } |
3555 | ||
3556 | /* The documentation for this function is in its prototype declaration in | |
3557 | target.h. */ | |
3558 | ||
3559 | int | |
f4b0a671 SM |
3560 | target_remove_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, |
3561 | enum target_hw_bp_type rw) | |
9c06b0b4 | 3562 | { |
8b88a78e | 3563 | return current_top_target ()->remove_mask_watchpoint (addr, mask, rw); |
9c06b0b4 TJB |
3564 | } |
3565 | ||
3566 | /* The documentation for this function is in its prototype declaration | |
3567 | in target.h. */ | |
3568 | ||
3569 | int | |
3570 | target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask) | |
3571 | { | |
8b88a78e | 3572 | return current_top_target ()->masked_watch_num_registers (addr, mask); |
9c06b0b4 TJB |
3573 | } |
3574 | ||
f1310107 TJB |
3575 | /* The documentation for this function is in its prototype declaration |
3576 | in target.h. */ | |
3577 | ||
3578 | int | |
3579 | target_ranged_break_num_registers (void) | |
3580 | { | |
8b88a78e | 3581 | return current_top_target ()->ranged_break_num_registers (); |
f1310107 TJB |
3582 | } |
3583 | ||
02d27625 MM |
3584 | /* See target.h. */ |
3585 | ||
02d27625 | 3586 | struct btrace_target_info * |
f4abbc16 | 3587 | target_enable_btrace (ptid_t ptid, const struct btrace_config *conf) |
02d27625 | 3588 | { |
8b88a78e | 3589 | return current_top_target ()->enable_btrace (ptid, conf); |
02d27625 MM |
3590 | } |
3591 | ||
3592 | /* See target.h. */ | |
3593 | ||
3594 | void | |
3595 | target_disable_btrace (struct btrace_target_info *btinfo) | |
3596 | { | |
8b88a78e | 3597 | current_top_target ()->disable_btrace (btinfo); |
02d27625 MM |
3598 | } |
3599 | ||
3600 | /* See target.h. */ | |
3601 | ||
3602 | void | |
3603 | target_teardown_btrace (struct btrace_target_info *btinfo) | |
3604 | { | |
8b88a78e | 3605 | current_top_target ()->teardown_btrace (btinfo); |
02d27625 MM |
3606 | } |
3607 | ||
3608 | /* See target.h. */ | |
3609 | ||
969c39fb | 3610 | enum btrace_error |
734b0e4b | 3611 | target_read_btrace (struct btrace_data *btrace, |
969c39fb | 3612 | struct btrace_target_info *btinfo, |
02d27625 MM |
3613 | enum btrace_read_type type) |
3614 | { | |
8b88a78e | 3615 | return current_top_target ()->read_btrace (btrace, btinfo, type); |
02d27625 MM |
3616 | } |
3617 | ||
d02ed0bb MM |
3618 | /* See target.h. */ |
3619 | ||
f4abbc16 MM |
3620 | const struct btrace_config * |
3621 | target_btrace_conf (const struct btrace_target_info *btinfo) | |
3622 | { | |
8b88a78e | 3623 | return current_top_target ()->btrace_conf (btinfo); |
f4abbc16 MM |
3624 | } |
3625 | ||
3626 | /* See target.h. */ | |
3627 | ||
7c1687a9 MM |
3628 | void |
3629 | target_stop_recording (void) | |
3630 | { | |
8b88a78e | 3631 | current_top_target ()->stop_recording (); |
7c1687a9 MM |
3632 | } |
3633 | ||
3634 | /* See target.h. */ | |
3635 | ||
d02ed0bb | 3636 | void |
85e1311a | 3637 | target_save_record (const char *filename) |
d02ed0bb | 3638 | { |
8b88a78e | 3639 | current_top_target ()->save_record (filename); |
d02ed0bb MM |
3640 | } |
3641 | ||
3642 | /* See target.h. */ | |
3643 | ||
3644 | int | |
f6ac5f3d | 3645 | target_supports_delete_record () |
d02ed0bb | 3646 | { |
8b88a78e | 3647 | return current_top_target ()->supports_delete_record (); |
d02ed0bb MM |
3648 | } |
3649 | ||
3650 | /* See target.h. */ | |
3651 | ||
3652 | void | |
3653 | target_delete_record (void) | |
3654 | { | |
8b88a78e | 3655 | current_top_target ()->delete_record (); |
d02ed0bb MM |
3656 | } |
3657 | ||
3658 | /* See target.h. */ | |
3659 | ||
b158a20f TW |
3660 | enum record_method |
3661 | target_record_method (ptid_t ptid) | |
3662 | { | |
8b88a78e | 3663 | return current_top_target ()->record_method (ptid); |
b158a20f TW |
3664 | } |
3665 | ||
3666 | /* See target.h. */ | |
3667 | ||
d02ed0bb | 3668 | int |
a52eab48 | 3669 | target_record_is_replaying (ptid_t ptid) |
d02ed0bb | 3670 | { |
8b88a78e | 3671 | return current_top_target ()->record_is_replaying (ptid); |
d02ed0bb MM |
3672 | } |
3673 | ||
3674 | /* See target.h. */ | |
3675 | ||
7ff27e9b MM |
3676 | int |
3677 | target_record_will_replay (ptid_t ptid, int dir) | |
3678 | { | |
8b88a78e | 3679 | return current_top_target ()->record_will_replay (ptid, dir); |
7ff27e9b MM |
3680 | } |
3681 | ||
3682 | /* See target.h. */ | |
3683 | ||
797094dd MM |
3684 | void |
3685 | target_record_stop_replaying (void) | |
3686 | { | |
8b88a78e | 3687 | current_top_target ()->record_stop_replaying (); |
797094dd MM |
3688 | } |
3689 | ||
3690 | /* See target.h. */ | |
3691 | ||
d02ed0bb MM |
3692 | void |
3693 | target_goto_record_begin (void) | |
3694 | { | |
8b88a78e | 3695 | current_top_target ()->goto_record_begin (); |
d02ed0bb MM |
3696 | } |
3697 | ||
3698 | /* See target.h. */ | |
3699 | ||
3700 | void | |
3701 | target_goto_record_end (void) | |
3702 | { | |
8b88a78e | 3703 | current_top_target ()->goto_record_end (); |
d02ed0bb MM |
3704 | } |
3705 | ||
3706 | /* See target.h. */ | |
3707 | ||
3708 | void | |
3709 | target_goto_record (ULONGEST insn) | |
3710 | { | |
8b88a78e | 3711 | current_top_target ()->goto_record (insn); |
d02ed0bb MM |
3712 | } |
3713 | ||
67c86d06 MM |
3714 | /* See target.h. */ |
3715 | ||
3716 | void | |
9a24775b | 3717 | target_insn_history (int size, gdb_disassembly_flags flags) |
67c86d06 | 3718 | { |
8b88a78e | 3719 | current_top_target ()->insn_history (size, flags); |
67c86d06 MM |
3720 | } |
3721 | ||
3722 | /* See target.h. */ | |
3723 | ||
3724 | void | |
9a24775b PA |
3725 | target_insn_history_from (ULONGEST from, int size, |
3726 | gdb_disassembly_flags flags) | |
67c86d06 | 3727 | { |
8b88a78e | 3728 | current_top_target ()->insn_history_from (from, size, flags); |
67c86d06 MM |
3729 | } |
3730 | ||
3731 | /* See target.h. */ | |
3732 | ||
3733 | void | |
9a24775b PA |
3734 | target_insn_history_range (ULONGEST begin, ULONGEST end, |
3735 | gdb_disassembly_flags flags) | |
67c86d06 | 3736 | { |
8b88a78e | 3737 | current_top_target ()->insn_history_range (begin, end, flags); |
67c86d06 MM |
3738 | } |
3739 | ||
15984c13 MM |
3740 | /* See target.h. */ |
3741 | ||
3742 | void | |
0cb7c7b0 | 3743 | target_call_history (int size, record_print_flags flags) |
15984c13 | 3744 | { |
8b88a78e | 3745 | current_top_target ()->call_history (size, flags); |
15984c13 MM |
3746 | } |
3747 | ||
3748 | /* See target.h. */ | |
3749 | ||
3750 | void | |
0cb7c7b0 | 3751 | target_call_history_from (ULONGEST begin, int size, record_print_flags flags) |
15984c13 | 3752 | { |
8b88a78e | 3753 | current_top_target ()->call_history_from (begin, size, flags); |
15984c13 MM |
3754 | } |
3755 | ||
3756 | /* See target.h. */ | |
3757 | ||
3758 | void | |
0cb7c7b0 | 3759 | target_call_history_range (ULONGEST begin, ULONGEST end, record_print_flags flags) |
15984c13 | 3760 | { |
8b88a78e | 3761 | current_top_target ()->call_history_range (begin, end, flags); |
15984c13 MM |
3762 | } |
3763 | ||
ea001bdc MM |
3764 | /* See target.h. */ |
3765 | ||
3766 | const struct frame_unwind * | |
3767 | target_get_unwinder (void) | |
3768 | { | |
8b88a78e | 3769 | return current_top_target ()->get_unwinder (); |
ea001bdc MM |
3770 | } |
3771 | ||
3772 | /* See target.h. */ | |
3773 | ||
3774 | const struct frame_unwind * | |
3775 | target_get_tailcall_unwinder (void) | |
3776 | { | |
8b88a78e | 3777 | return current_top_target ()->get_tailcall_unwinder (); |
ea001bdc MM |
3778 | } |
3779 | ||
5fff78c4 MM |
3780 | /* See target.h. */ |
3781 | ||
3782 | void | |
3783 | target_prepare_to_generate_core (void) | |
3784 | { | |
8b88a78e | 3785 | current_top_target ()->prepare_to_generate_core (); |
5fff78c4 MM |
3786 | } |
3787 | ||
3788 | /* See target.h. */ | |
3789 | ||
3790 | void | |
3791 | target_done_generating_core (void) | |
3792 | { | |
8b88a78e | 3793 | current_top_target ()->done_generating_core (); |
5fff78c4 MM |
3794 | } |
3795 | ||
c906108c | 3796 | \f |
c5aa993b JM |
3797 | |
3798 | static char targ_desc[] = | |
3e43a32a MS |
3799 | "Names of targets and files being debugged.\nShows the entire \ |
3800 | stack of targets currently in use (including the exec-file,\n\ | |
c906108c SS |
3801 | core-file, and process, if any), as well as the symbol file name."; |
3802 | ||
a53f3625 | 3803 | static void |
a30bf1f1 TT |
3804 | default_rcmd (struct target_ops *self, const char *command, |
3805 | struct ui_file *output) | |
a53f3625 TT |
3806 | { |
3807 | error (_("\"monitor\" command not supported by this target.")); | |
3808 | } | |
3809 | ||
96baa820 | 3810 | static void |
0b39b52e | 3811 | do_monitor_command (const char *cmd, int from_tty) |
96baa820 | 3812 | { |
96baa820 JM |
3813 | target_rcmd (cmd, gdb_stdtarg); |
3814 | } | |
3815 | ||
78cbbba8 LM |
3816 | /* Erases all the memory regions marked as flash. CMD and FROM_TTY are |
3817 | ignored. */ | |
3818 | ||
3819 | void | |
0b39b52e | 3820 | flash_erase_command (const char *cmd, int from_tty) |
78cbbba8 LM |
3821 | { |
3822 | /* Used to communicate termination of flash operations to the target. */ | |
3823 | bool found_flash_region = false; | |
78cbbba8 LM |
3824 | struct gdbarch *gdbarch = target_gdbarch (); |
3825 | ||
a664f67e | 3826 | std::vector<mem_region> mem_regions = target_memory_map (); |
78cbbba8 LM |
3827 | |
3828 | /* Iterate over all memory regions. */ | |
a664f67e | 3829 | for (const mem_region &m : mem_regions) |
78cbbba8 | 3830 | { |
78cbbba8 | 3831 | /* Is this a flash memory region? */ |
a664f67e | 3832 | if (m.attrib.mode == MEM_FLASH) |
78cbbba8 LM |
3833 | { |
3834 | found_flash_region = true; | |
a664f67e | 3835 | target_flash_erase (m.lo, m.hi - m.lo); |
78cbbba8 | 3836 | |
76f9c9cf | 3837 | ui_out_emit_tuple tuple_emitter (current_uiout, "erased-regions"); |
78cbbba8 LM |
3838 | |
3839 | current_uiout->message (_("Erasing flash memory region at address ")); | |
ca8d69be | 3840 | current_uiout->field_core_addr ("address", gdbarch, m.lo); |
78cbbba8 | 3841 | current_uiout->message (", size = "); |
33eca680 | 3842 | current_uiout->field_string ("size", hex_string (m.hi - m.lo)); |
78cbbba8 | 3843 | current_uiout->message ("\n"); |
78cbbba8 LM |
3844 | } |
3845 | } | |
3846 | ||
3847 | /* Did we do any flash operations? If so, we need to finalize them. */ | |
3848 | if (found_flash_region) | |
3849 | target_flash_done (); | |
3850 | else | |
3851 | current_uiout->message (_("No flash memory regions found.\n")); | |
3852 | } | |
3853 | ||
87680a14 JB |
3854 | /* Print the name of each layers of our target stack. */ |
3855 | ||
3856 | static void | |
d3cb6b99 | 3857 | maintenance_print_target_stack (const char *cmd, int from_tty) |
87680a14 | 3858 | { |
87680a14 JB |
3859 | printf_filtered (_("The current target stack is:\n")); |
3860 | ||
b6a8c27b | 3861 | for (target_ops *t = current_top_target (); t != NULL; t = t->beneath ()) |
87680a14 | 3862 | { |
66b4deae | 3863 | if (t->stratum () == debug_stratum) |
f6ac5f3d PA |
3864 | continue; |
3865 | printf_filtered (" - %s (%s)\n", t->shortname (), t->longname ()); | |
87680a14 JB |
3866 | } |
3867 | } | |
3868 | ||
372316f1 PA |
3869 | /* See target.h. */ |
3870 | ||
3871 | void | |
3872 | target_async (int enable) | |
3873 | { | |
3874 | infrun_async (enable); | |
8b88a78e | 3875 | current_top_target ()->async (enable); |
372316f1 PA |
3876 | } |
3877 | ||
65706a29 PA |
3878 | /* See target.h. */ |
3879 | ||
3880 | void | |
3881 | target_thread_events (int enable) | |
3882 | { | |
8b88a78e | 3883 | current_top_target ()->thread_events (enable); |
65706a29 PA |
3884 | } |
3885 | ||
329ea579 PA |
3886 | /* Controls if targets can report that they can/are async. This is |
3887 | just for maintainers to use when debugging gdb. */ | |
491144b5 | 3888 | bool target_async_permitted = true; |
c6ebd6cf VP |
3889 | |
3890 | /* The set command writes to this variable. If the inferior is | |
b5419e49 | 3891 | executing, target_async_permitted is *not* updated. */ |
491144b5 | 3892 | static bool target_async_permitted_1 = true; |
c6ebd6cf VP |
3893 | |
3894 | static void | |
eb4c3f4a | 3895 | maint_set_target_async_command (const char *args, int from_tty, |
329ea579 | 3896 | struct cmd_list_element *c) |
c6ebd6cf | 3897 | { |
c35b1492 | 3898 | if (have_live_inferiors ()) |
c6ebd6cf VP |
3899 | { |
3900 | target_async_permitted_1 = target_async_permitted; | |
3901 | error (_("Cannot change this setting while the inferior is running.")); | |
3902 | } | |
3903 | ||
3904 | target_async_permitted = target_async_permitted_1; | |
3905 | } | |
3906 | ||
3907 | static void | |
329ea579 PA |
3908 | maint_show_target_async_command (struct ui_file *file, int from_tty, |
3909 | struct cmd_list_element *c, | |
3910 | const char *value) | |
c6ebd6cf | 3911 | { |
3e43a32a MS |
3912 | fprintf_filtered (file, |
3913 | _("Controlling the inferior in " | |
3914 | "asynchronous mode is %s.\n"), value); | |
c6ebd6cf VP |
3915 | } |
3916 | ||
fbea99ea PA |
3917 | /* Return true if the target operates in non-stop mode even with "set |
3918 | non-stop off". */ | |
3919 | ||
3920 | static int | |
3921 | target_always_non_stop_p (void) | |
3922 | { | |
8b88a78e | 3923 | return current_top_target ()->always_non_stop_p (); |
fbea99ea PA |
3924 | } |
3925 | ||
3926 | /* See target.h. */ | |
3927 | ||
3928 | int | |
3929 | target_is_non_stop_p (void) | |
3930 | { | |
3931 | return (non_stop | |
3932 | || target_non_stop_enabled == AUTO_BOOLEAN_TRUE | |
3933 | || (target_non_stop_enabled == AUTO_BOOLEAN_AUTO | |
3934 | && target_always_non_stop_p ())); | |
3935 | } | |
3936 | ||
3937 | /* Controls if targets can report that they always run in non-stop | |
3938 | mode. This is just for maintainers to use when debugging gdb. */ | |
3939 | enum auto_boolean target_non_stop_enabled = AUTO_BOOLEAN_AUTO; | |
3940 | ||
3941 | /* The set command writes to this variable. If the inferior is | |
3942 | executing, target_non_stop_enabled is *not* updated. */ | |
3943 | static enum auto_boolean target_non_stop_enabled_1 = AUTO_BOOLEAN_AUTO; | |
3944 | ||
3945 | /* Implementation of "maint set target-non-stop". */ | |
3946 | ||
3947 | static void | |
eb4c3f4a | 3948 | maint_set_target_non_stop_command (const char *args, int from_tty, |
fbea99ea PA |
3949 | struct cmd_list_element *c) |
3950 | { | |
3951 | if (have_live_inferiors ()) | |
3952 | { | |
3953 | target_non_stop_enabled_1 = target_non_stop_enabled; | |
3954 | error (_("Cannot change this setting while the inferior is running.")); | |
3955 | } | |
3956 | ||
3957 | target_non_stop_enabled = target_non_stop_enabled_1; | |
3958 | } | |
3959 | ||
3960 | /* Implementation of "maint show target-non-stop". */ | |
3961 | ||
3962 | static void | |
3963 | maint_show_target_non_stop_command (struct ui_file *file, int from_tty, | |
3964 | struct cmd_list_element *c, | |
3965 | const char *value) | |
3966 | { | |
3967 | if (target_non_stop_enabled == AUTO_BOOLEAN_AUTO) | |
3968 | fprintf_filtered (file, | |
3969 | _("Whether the target is always in non-stop mode " | |
3970 | "is %s (currently %s).\n"), value, | |
3971 | target_always_non_stop_p () ? "on" : "off"); | |
3972 | else | |
3973 | fprintf_filtered (file, | |
3974 | _("Whether the target is always in non-stop mode " | |
3975 | "is %s.\n"), value); | |
3976 | } | |
3977 | ||
d914c394 SS |
3978 | /* Temporary copies of permission settings. */ |
3979 | ||
491144b5 CB |
3980 | static bool may_write_registers_1 = true; |
3981 | static bool may_write_memory_1 = true; | |
3982 | static bool may_insert_breakpoints_1 = true; | |
3983 | static bool may_insert_tracepoints_1 = true; | |
3984 | static bool may_insert_fast_tracepoints_1 = true; | |
3985 | static bool may_stop_1 = true; | |
d914c394 SS |
3986 | |
3987 | /* Make the user-set values match the real values again. */ | |
3988 | ||
3989 | void | |
3990 | update_target_permissions (void) | |
3991 | { | |
3992 | may_write_registers_1 = may_write_registers; | |
3993 | may_write_memory_1 = may_write_memory; | |
3994 | may_insert_breakpoints_1 = may_insert_breakpoints; | |
3995 | may_insert_tracepoints_1 = may_insert_tracepoints; | |
3996 | may_insert_fast_tracepoints_1 = may_insert_fast_tracepoints; | |
3997 | may_stop_1 = may_stop; | |
3998 | } | |
3999 | ||
4000 | /* The one function handles (most of) the permission flags in the same | |
4001 | way. */ | |
4002 | ||
4003 | static void | |
eb4c3f4a | 4004 | set_target_permissions (const char *args, int from_tty, |
d914c394 SS |
4005 | struct cmd_list_element *c) |
4006 | { | |
4007 | if (target_has_execution) | |
4008 | { | |
4009 | update_target_permissions (); | |
4010 | error (_("Cannot change this setting while the inferior is running.")); | |
4011 | } | |
4012 | ||
4013 | /* Make the real values match the user-changed values. */ | |
4014 | may_write_registers = may_write_registers_1; | |
4015 | may_insert_breakpoints = may_insert_breakpoints_1; | |
4016 | may_insert_tracepoints = may_insert_tracepoints_1; | |
4017 | may_insert_fast_tracepoints = may_insert_fast_tracepoints_1; | |
4018 | may_stop = may_stop_1; | |
4019 | update_observer_mode (); | |
4020 | } | |
4021 | ||
4022 | /* Set memory write permission independently of observer mode. */ | |
4023 | ||
4024 | static void | |
eb4c3f4a | 4025 | set_write_memory_permission (const char *args, int from_tty, |
d914c394 SS |
4026 | struct cmd_list_element *c) |
4027 | { | |
4028 | /* Make the real values match the user-changed values. */ | |
4029 | may_write_memory = may_write_memory_1; | |
4030 | update_observer_mode (); | |
4031 | } | |
4032 | ||
6c265988 SM |
4033 | void _initialize_target (); |
4034 | ||
c906108c | 4035 | void |
5b6d1e4f | 4036 | _initialize_target () |
c906108c | 4037 | { |
f6ac5f3d | 4038 | the_debug_target = new debug_target (); |
c906108c | 4039 | |
11db9430 SM |
4040 | add_info ("target", info_target_command, targ_desc); |
4041 | add_info ("files", info_target_command, targ_desc); | |
c906108c | 4042 | |
ccce17b0 | 4043 | add_setshow_zuinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
85c07804 AC |
4044 | Set target debugging."), _("\ |
4045 | Show target debugging."), _("\ | |
333dabeb | 4046 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
3cecbbbe TT |
4047 | verbose."), |
4048 | set_targetdebug, | |
ccce17b0 YQ |
4049 | show_targetdebug, |
4050 | &setdebuglist, &showdebuglist); | |
3a11626d | 4051 | |
2bc416ba | 4052 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
4053 | &trust_readonly, _("\ |
4054 | Set mode for reading from readonly sections."), _("\ | |
4055 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
4056 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
4057 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 4058 | result in significant performance improvement for remote targets."), |
2c5b56ce | 4059 | NULL, |
920d2a44 | 4060 | show_trust_readonly, |
e707bbc2 | 4061 | &setlist, &showlist); |
96baa820 JM |
4062 | |
4063 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 4064 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 4065 | |
87680a14 JB |
4066 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
4067 | _("Print the name of each layer of the internal target stack."), | |
4068 | &maintenanceprintlist); | |
4069 | ||
c6ebd6cf VP |
4070 | add_setshow_boolean_cmd ("target-async", no_class, |
4071 | &target_async_permitted_1, _("\ | |
4072 | Set whether gdb controls the inferior in asynchronous mode."), _("\ | |
4073 | Show whether gdb controls the inferior in asynchronous mode."), _("\ | |
4074 | Tells gdb whether to control the inferior in asynchronous mode."), | |
329ea579 PA |
4075 | maint_set_target_async_command, |
4076 | maint_show_target_async_command, | |
4077 | &maintenance_set_cmdlist, | |
4078 | &maintenance_show_cmdlist); | |
c6ebd6cf | 4079 | |
fbea99ea PA |
4080 | add_setshow_auto_boolean_cmd ("target-non-stop", no_class, |
4081 | &target_non_stop_enabled_1, _("\ | |
4082 | Set whether gdb always controls the inferior in non-stop mode."), _("\ | |
4083 | Show whether gdb always controls the inferior in non-stop mode."), _("\ | |
4084 | Tells gdb whether to control the inferior in non-stop mode."), | |
4085 | maint_set_target_non_stop_command, | |
4086 | maint_show_target_non_stop_command, | |
4087 | &maintenance_set_cmdlist, | |
4088 | &maintenance_show_cmdlist); | |
4089 | ||
d914c394 SS |
4090 | add_setshow_boolean_cmd ("may-write-registers", class_support, |
4091 | &may_write_registers_1, _("\ | |
4092 | Set permission to write into registers."), _("\ | |
4093 | Show permission to write into registers."), _("\ | |
4094 | When this permission is on, GDB may write into the target's registers.\n\ | |
4095 | Otherwise, any sort of write attempt will result in an error."), | |
4096 | set_target_permissions, NULL, | |
4097 | &setlist, &showlist); | |
4098 | ||
4099 | add_setshow_boolean_cmd ("may-write-memory", class_support, | |
4100 | &may_write_memory_1, _("\ | |
4101 | Set permission to write into target memory."), _("\ | |
4102 | Show permission to write into target memory."), _("\ | |
4103 | When this permission is on, GDB may write into the target's memory.\n\ | |
4104 | Otherwise, any sort of write attempt will result in an error."), | |
4105 | set_write_memory_permission, NULL, | |
4106 | &setlist, &showlist); | |
4107 | ||
4108 | add_setshow_boolean_cmd ("may-insert-breakpoints", class_support, | |
4109 | &may_insert_breakpoints_1, _("\ | |
4110 | Set permission to insert breakpoints in the target."), _("\ | |
4111 | Show permission to insert breakpoints in the target."), _("\ | |
4112 | When this permission is on, GDB may insert breakpoints in the program.\n\ | |
4113 | Otherwise, any sort of insertion attempt will result in an error."), | |
4114 | set_target_permissions, NULL, | |
4115 | &setlist, &showlist); | |
4116 | ||
4117 | add_setshow_boolean_cmd ("may-insert-tracepoints", class_support, | |
4118 | &may_insert_tracepoints_1, _("\ | |
4119 | Set permission to insert tracepoints in the target."), _("\ | |
4120 | Show permission to insert tracepoints in the target."), _("\ | |
4121 | When this permission is on, GDB may insert tracepoints in the program.\n\ | |
4122 | Otherwise, any sort of insertion attempt will result in an error."), | |
4123 | set_target_permissions, NULL, | |
4124 | &setlist, &showlist); | |
4125 | ||
4126 | add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support, | |
4127 | &may_insert_fast_tracepoints_1, _("\ | |
4128 | Set permission to insert fast tracepoints in the target."), _("\ | |
4129 | Show permission to insert fast tracepoints in the target."), _("\ | |
4130 | When this permission is on, GDB may insert fast tracepoints.\n\ | |
4131 | Otherwise, any sort of insertion attempt will result in an error."), | |
4132 | set_target_permissions, NULL, | |
4133 | &setlist, &showlist); | |
4134 | ||
4135 | add_setshow_boolean_cmd ("may-interrupt", class_support, | |
4136 | &may_stop_1, _("\ | |
4137 | Set permission to interrupt or signal the target."), _("\ | |
4138 | Show permission to interrupt or signal the target."), _("\ | |
4139 | When this permission is on, GDB may interrupt/stop the target's execution.\n\ | |
4140 | Otherwise, any attempt to interrupt or stop will be ignored."), | |
4141 | set_target_permissions, NULL, | |
4142 | &setlist, &showlist); | |
6a3cb8e8 | 4143 | |
78cbbba8 LM |
4144 | add_com ("flash-erase", no_class, flash_erase_command, |
4145 | _("Erase all flash memory regions.")); | |
4146 | ||
6a3cb8e8 PA |
4147 | add_setshow_boolean_cmd ("auto-connect-native-target", class_support, |
4148 | &auto_connect_native_target, _("\ | |
4149 | Set whether GDB may automatically connect to the native target."), _("\ | |
4150 | Show whether GDB may automatically connect to the native target."), _("\ | |
4151 | When on, and GDB is not connected to a target yet, GDB\n\ | |
4152 | attempts \"run\" and other commands with the native target."), | |
4153 | NULL, show_auto_connect_native_target, | |
4154 | &setlist, &showlist); | |
c906108c | 4155 | } |