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c906108c | 1 | /* Memory-access and commands for "inferior" process, for GDB. |
990a07ab | 2 | |
213516ef | 3 | Copyright (C) 1986-2023 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | #include "defs.h" | |
5af949e3 | 21 | #include "arch-utils.h" |
c906108c SS |
22 | #include "symtab.h" |
23 | #include "gdbtypes.h" | |
24 | #include "frame.h" | |
25 | #include "inferior.h" | |
45741a9c | 26 | #include "infrun.h" |
268a13a5 | 27 | #include "gdbsupport/environ.h" |
c906108c SS |
28 | #include "value.h" |
29 | #include "gdbcmd.h" | |
1adeb98a | 30 | #include "symfile.h" |
c906108c SS |
31 | #include "gdbcore.h" |
32 | #include "target.h" | |
33 | #include "language.h" | |
c906108c | 34 | #include "objfiles.h" |
c94fdfd0 | 35 | #include "completer.h" |
8b93c638 | 36 | #include "ui-out.h" |
36160dc4 | 37 | #include "regcache.h" |
f9418c0f | 38 | #include "reggroups.h" |
fe898f56 | 39 | #include "block.h" |
a77053c2 | 40 | #include "solib.h" |
f9418c0f | 41 | #include <ctype.h> |
76727919 | 42 | #include "observable.h" |
424163ea | 43 | #include "target-descriptions.h" |
ad842144 | 44 | #include "user-regs.h" |
a0ef4274 | 45 | #include "gdbthread.h" |
79a45b7d | 46 | #include "valprint.h" |
edb3359d | 47 | #include "inline-frame.h" |
573cda03 | 48 | #include "tracepoint.h" |
09cee04b | 49 | #include "inf-loop.h" |
f8eba3c6 | 50 | #include "linespec.h" |
243a9253 | 51 | #include "thread-fsm.h" |
3b12939d | 52 | #include "top.h" |
8980e177 | 53 | #include "interps.h" |
4a4c04f1 | 54 | #include "skip.h" |
268a13a5 | 55 | #include "gdbsupport/gdb_optional.h" |
b46a8d7c | 56 | #include "source.h" |
7f6aba03 | 57 | #include "cli/cli-style.h" |
a0eda3df | 58 | #include "dwarf2/loc.h" |
d5551862 | 59 | |
a58dd373 EZ |
60 | /* Local functions: */ |
61 | ||
a14ed312 | 62 | static void until_next_command (int); |
c906108c | 63 | |
0b39b52e | 64 | static void step_1 (int, int, const char *); |
c906108c | 65 | |
c906108c | 66 | #define ERROR_NO_INFERIOR \ |
55f6301a | 67 | if (!target_has_execution ()) error (_("The program is not being run.")); |
c906108c | 68 | |
c906108c SS |
69 | /* Pid of our debugged inferior, or 0 if no inferior now. |
70 | Since various parts of infrun.c test this to see whether there is a program | |
71 | being debugged it should be nonzero (currently 3 is used) for remote | |
72 | debugging. */ | |
73 | ||
39f77062 | 74 | ptid_t inferior_ptid; |
c906108c | 75 | |
c906108c SS |
76 | /* Nonzero if stopped due to completion of a stack dummy routine. */ |
77 | ||
aa7d318d | 78 | enum stop_stack_kind stop_stack_dummy; |
c906108c SS |
79 | |
80 | /* Nonzero if stopped due to a random (unexpected) signal in inferior | |
81 | process. */ | |
82 | ||
83 | int stopped_by_random_signal; | |
84 | ||
5ffa6ca3 TT |
85 | |
86 | /* Whether "finish" should print the value. */ | |
87 | ||
88 | static bool finish_print = true; | |
89 | ||
c906108c | 90 | \f |
3f81c18a | 91 | |
598e87ec AB |
92 | /* Store the new value passed to 'set inferior-tty'. */ |
93 | ||
3f81c18a | 94 | static void |
598e87ec | 95 | set_tty_value (const std::string &tty) |
3f81c18a | 96 | { |
598e87ec | 97 | current_inferior ()->set_tty (tty); |
3f81c18a VP |
98 | } |
99 | ||
598e87ec AB |
100 | /* Get the current 'inferior-tty' value. */ |
101 | ||
102 | static const std::string & | |
103 | get_tty_value () | |
104 | { | |
105 | return current_inferior ()->tty (); | |
106 | } | |
107 | ||
108 | /* Implement 'show inferior-tty' command. */ | |
109 | ||
3f81c18a VP |
110 | static void |
111 | show_inferior_tty_command (struct ui_file *file, int from_tty, | |
112 | struct cmd_list_element *c, const char *value) | |
113 | { | |
114 | /* Note that we ignore the passed-in value in favor of computing it | |
115 | directly. */ | |
4e93ea6e | 116 | const std::string &inferior_tty = current_inferior ()->tty (); |
abbb1732 | 117 | |
6cb06a8c TT |
118 | gdb_printf (file, |
119 | _("Terminal for future runs of program being debugged " | |
120 | "is \"%s\".\n"), inferior_tty.c_str ()); | |
3cb3b8df BR |
121 | } |
122 | ||
cc09d372 | 123 | /* Store the new value passed to 'set args'. */ |
6339bfc4 | 124 | |
552c04a7 | 125 | static void |
cc09d372 | 126 | set_args_value (const std::string &args) |
552c04a7 | 127 | { |
cc09d372 | 128 | current_inferior ()->set_args (args); |
552c04a7 TT |
129 | } |
130 | ||
cc09d372 AB |
131 | /* Return the value for 'show args' to display. */ |
132 | ||
133 | static const std::string & | |
134 | get_args_value () | |
135 | { | |
136 | return current_inferior ()->args (); | |
137 | } | |
138 | ||
139 | /* Callback to implement 'show args' command. */ | |
6339bfc4 | 140 | |
552c04a7 | 141 | static void |
3f81c18a VP |
142 | show_args_command (struct ui_file *file, int from_tty, |
143 | struct cmd_list_element *c, const char *value) | |
552c04a7 | 144 | { |
cc09d372 AB |
145 | /* Ignore the passed in value, pull the argument directly from the |
146 | inferior. However, these should always be the same. */ | |
147 | gdb_printf (_("\ | |
148 | Argument list to give program being debugged when it is started is \"%s\".\n"), | |
149 | current_inferior ()->args ().c_str ()); | |
552c04a7 TT |
150 | } |
151 | ||
268a13a5 | 152 | /* See gdbsupport/common-inferior.h. */ |
d092c5a2 | 153 | |
11bd012e | 154 | const std::string & |
d092c5a2 SDJ |
155 | get_inferior_cwd () |
156 | { | |
90cc31c9 | 157 | return current_inferior ()->cwd (); |
d092c5a2 SDJ |
158 | } |
159 | ||
94e6c564 | 160 | /* Store the new value passed to 'set cwd'. */ |
d092c5a2 SDJ |
161 | |
162 | static void | |
94e6c564 | 163 | set_cwd_value (const std::string &args) |
d092c5a2 | 164 | { |
94e6c564 | 165 | current_inferior ()->set_cwd (args); |
d092c5a2 SDJ |
166 | } |
167 | ||
168 | /* Handle the 'show cwd' command. */ | |
169 | ||
170 | static void | |
171 | show_cwd_command (struct ui_file *file, int from_tty, | |
172 | struct cmd_list_element *c, const char *value) | |
173 | { | |
11bd012e | 174 | const std::string &cwd = current_inferior ()->cwd (); |
d092c5a2 | 175 | |
11bd012e | 176 | if (cwd.empty ()) |
6cb06a8c TT |
177 | gdb_printf (file, |
178 | _("\ | |
d092c5a2 | 179 | You have not set the inferior's current working directory.\n\ |
bc3b087d SDJ |
180 | The inferior will inherit GDB's cwd if native debugging, or the remote\n\ |
181 | server's cwd if remote debugging.\n")); | |
d092c5a2 | 182 | else |
6cb06a8c TT |
183 | gdb_printf (file, |
184 | _("Current working directory that will be used " | |
185 | "when starting the inferior is \"%s\".\n"), | |
186 | cwd.c_str ()); | |
d092c5a2 SDJ |
187 | } |
188 | ||
552c04a7 | 189 | |
6c4486e6 PA |
190 | /* This function strips the '&' character (indicating background |
191 | execution) that is added as *the last* of the arguments ARGS of a | |
192 | command. A copy of the incoming ARGS without the '&' is returned, | |
193 | unless the resulting string after stripping is empty, in which case | |
194 | NULL is returned. *BG_CHAR_P is an output boolean that indicates | |
195 | whether the '&' character was found. */ | |
6339bfc4 | 196 | |
6be9a197 | 197 | static gdb::unique_xmalloc_ptr<char> |
6c4486e6 | 198 | strip_bg_char (const char *args, int *bg_char_p) |
43ff13b4 | 199 | { |
6c4486e6 | 200 | const char *p; |
c5aa993b | 201 | |
03acd4d8 | 202 | if (args == nullptr || *args == '\0') |
6c4486e6 PA |
203 | { |
204 | *bg_char_p = 0; | |
03acd4d8 | 205 | return nullptr; |
6c4486e6 | 206 | } |
c5aa993b | 207 | |
6c4486e6 PA |
208 | p = args + strlen (args); |
209 | if (p[-1] == '&') | |
43ff13b4 | 210 | { |
6c4486e6 PA |
211 | p--; |
212 | while (p > args && isspace (p[-1])) | |
213 | p--; | |
214 | ||
215 | *bg_char_p = 1; | |
216 | if (p != args) | |
6be9a197 TT |
217 | return gdb::unique_xmalloc_ptr<char> |
218 | (savestring (args, p - args)); | |
6c4486e6 | 219 | else |
6be9a197 | 220 | return gdb::unique_xmalloc_ptr<char> (nullptr); |
43ff13b4 | 221 | } |
6c4486e6 PA |
222 | |
223 | *bg_char_p = 0; | |
b02f78f9 | 224 | return make_unique_xstrdup (args); |
43ff13b4 JM |
225 | } |
226 | ||
281b533b DJ |
227 | /* Common actions to take after creating any sort of inferior, by any |
228 | means (running, attaching, connecting, et cetera). The target | |
229 | should be stopped. */ | |
230 | ||
231 | void | |
a7aba266 | 232 | post_create_inferior (int from_tty) |
281b533b | 233 | { |
ce406537 | 234 | |
b79599ff | 235 | /* Be sure we own the terminal in case write operations are performed. */ |
223ffa71 | 236 | target_terminal::ours_for_output (); |
b79599ff | 237 | |
1f9d9e32 AB |
238 | infrun_debug_show_threads ("threads in the newly created inferior", |
239 | current_inferior ()->non_exited_threads ()); | |
240 | ||
424163ea DJ |
241 | /* If the target hasn't taken care of this already, do it now. |
242 | Targets which need to access registers during to_open, | |
243 | to_create_inferior, or to_attach should do it earlier; but many | |
244 | don't need to. */ | |
245 | target_find_description (); | |
246 | ||
ce406537 PA |
247 | /* Now that we know the register layout, retrieve current PC. But |
248 | if the PC is unavailable (e.g., we're opening a core file with | |
249 | missing registers info), ignore it. */ | |
f2ffa92b PA |
250 | thread_info *thr = inferior_thread (); |
251 | ||
351031f2 | 252 | thr->clear_stop_pc (); |
a70b8144 | 253 | try |
ce406537 | 254 | { |
8dc3273e | 255 | regcache *rc = get_thread_regcache (thr); |
1edb66d8 | 256 | thr->set_stop_pc (regcache_read_pc (rc)); |
ce406537 | 257 | } |
230d2906 | 258 | catch (const gdb_exception_error &ex) |
7556d4a4 PA |
259 | { |
260 | if (ex.error != NOT_AVAILABLE_ERROR) | |
eedc3f4f | 261 | throw; |
7556d4a4 | 262 | } |
f698437e | 263 | |
7e10abd1 | 264 | if (current_program_space->exec_bfd ()) |
50c71eaf | 265 | { |
2eff07b3 PP |
266 | const unsigned solib_add_generation |
267 | = current_program_space->solib_add_generation; | |
268 | ||
122373f7 SM |
269 | scoped_restore restore_in_initial_library_scan |
270 | = make_scoped_restore (¤t_inferior ()->in_initial_library_scan, | |
271 | true); | |
272 | ||
9353355f DJ |
273 | /* Create the hooks to handle shared library load and unload |
274 | events. */ | |
268a4a75 | 275 | solib_create_inferior_hook (from_tty); |
268a4a75 | 276 | |
2eff07b3 PP |
277 | if (current_program_space->solib_add_generation == solib_add_generation) |
278 | { | |
279 | /* The platform-specific hook should load initial shared libraries, | |
280 | but didn't. FROM_TTY will be incorrectly 0 but such solib | |
281 | targets should be fixed anyway. Call it only after the solib | |
282 | target has been initialized by solib_create_inferior_hook. */ | |
283 | ||
284 | if (info_verbose) | |
285 | warning (_("platform-specific solib_create_inferior_hook did " | |
286 | "not load initial shared libraries.")); | |
287 | ||
288 | /* If the solist is global across processes, there's no need to | |
289 | refetch it here. */ | |
f5656ead | 290 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
03acd4d8 | 291 | solib_add (nullptr, 0, auto_solib_add); |
2eff07b3 | 292 | } |
9353355f DJ |
293 | } |
294 | ||
ea5d7a99 PM |
295 | /* If the user sets watchpoints before execution having started, |
296 | then she gets software watchpoints, because GDB can't know which | |
297 | target will end up being pushed, or if it supports hardware | |
298 | watchpoints or not. breakpoint_re_set takes care of promoting | |
299 | watchpoints to hardware watchpoints if possible, however, if this | |
300 | new inferior doesn't load shared libraries or we don't pull in | |
301 | symbols from any other source on this target/arch, | |
302 | breakpoint_re_set is never called. Call it now so that software | |
303 | watchpoints get a chance to be promoted to hardware watchpoints | |
304 | if the now pushed target supports hardware watchpoints. */ | |
305 | breakpoint_re_set (); | |
306 | ||
a0ff652f | 307 | gdb::observers::inferior_created.notify (current_inferior ()); |
281b533b DJ |
308 | } |
309 | ||
a4d5f2e0 JB |
310 | /* Kill the inferior if already running. This function is designed |
311 | to be called when we are about to start the execution of the program | |
312 | from the beginning. Ask the user to confirm that he wants to restart | |
313 | the program being debugged when FROM_TTY is non-null. */ | |
c906108c | 314 | |
8edfe269 | 315 | static void |
a4d5f2e0 JB |
316 | kill_if_already_running (int from_tty) |
317 | { | |
55f6301a | 318 | if (inferior_ptid != null_ptid && target_has_execution ()) |
c906108c | 319 | { |
8edfe269 DJ |
320 | /* Bail out before killing the program if we will not be able to |
321 | restart it. */ | |
322 | target_require_runnable (); | |
323 | ||
adf40b2e | 324 | if (from_tty |
9e2f0ad4 HZ |
325 | && !query (_("The program being debugged has been started already.\n\ |
326 | Start it from the beginning? "))) | |
8a3fe4f8 | 327 | error (_("Program not restarted.")); |
c906108c | 328 | target_kill (); |
c906108c | 329 | } |
a4d5f2e0 JB |
330 | } |
331 | ||
329ea579 | 332 | /* See inferior.h. */ |
8bc2fe48 | 333 | |
329ea579 | 334 | void |
8bc2fe48 PA |
335 | prepare_execution_command (struct target_ops *target, int background) |
336 | { | |
337 | /* If we get a request for running in the bg but the target | |
338 | doesn't support it, error out. */ | |
0c1e6e26 | 339 | if (background && !target_can_async_p (target)) |
8bc2fe48 PA |
340 | error (_("Asynchronous execution not supported on this target.")); |
341 | ||
0b333c5e | 342 | if (!background) |
8bc2fe48 | 343 | { |
0b333c5e PA |
344 | /* If we get a request for running in the fg, then we need to |
345 | simulate synchronous (fg) execution. Note no cleanup is | |
346 | necessary for this. stdin is re-enabled whenever an error | |
347 | reaches the top level. */ | |
a8836c93 | 348 | all_uis_on_sync_execution_starting (); |
8bc2fe48 PA |
349 | } |
350 | } | |
351 | ||
4e5a4f58 JB |
352 | /* Determine how the new inferior will behave. */ |
353 | ||
354 | enum run_how | |
355 | { | |
356 | /* Run program without any explicit stop during startup. */ | |
357 | RUN_NORMAL, | |
358 | ||
359 | /* Stop at the beginning of the program's main function. */ | |
360 | RUN_STOP_AT_MAIN, | |
361 | ||
362 | /* Stop at the first instruction of the program. */ | |
363 | RUN_STOP_AT_FIRST_INSN | |
364 | }; | |
365 | ||
366 | /* Implement the "run" command. Force a stop during program start if | |
367 | requested by RUN_HOW. */ | |
f67a969f | 368 | |
a4d5f2e0 | 369 | static void |
0b39b52e | 370 | run_command_1 (const char *args, int from_tty, enum run_how run_how) |
a4d5f2e0 | 371 | { |
7c5ded6a | 372 | const char *exec_file; |
79a45e25 | 373 | struct ui_out *uiout = current_uiout; |
b3ccfe11 | 374 | struct target_ops *run_target; |
6c4486e6 | 375 | int async_exec; |
c906108c | 376 | |
a4d5f2e0 JB |
377 | dont_repeat (); |
378 | ||
1192f124 SM |
379 | scoped_disable_commit_resumed disable_commit_resumed ("running"); |
380 | ||
a4d5f2e0 | 381 | kill_if_already_running (from_tty); |
3c35e65b UW |
382 | |
383 | init_wait_for_inferior (); | |
c906108c SS |
384 | clear_breakpoint_hit_counts (); |
385 | ||
fd79ecee DJ |
386 | /* Clean up any leftovers from other runs. Some other things from |
387 | this function should probably be moved into target_pre_inferior. */ | |
388 | target_pre_inferior (from_tty); | |
389 | ||
39ad761d JB |
390 | /* The comment here used to read, "The exec file is re-read every |
391 | time we do a generic_mourn_inferior, so we just have to worry | |
392 | about the symbol file." The `generic_mourn_inferior' function | |
393 | gets called whenever the program exits. However, suppose the | |
394 | program exits, and *then* the executable file changes? We need | |
395 | to check again here. Since reopen_exec_file doesn't do anything | |
396 | if the timestamp hasn't changed, I don't see the harm. */ | |
397 | reopen_exec_file (); | |
9dec38d3 | 398 | reread_symbols (from_tty); |
c906108c | 399 | |
6be9a197 TT |
400 | gdb::unique_xmalloc_ptr<char> stripped = strip_bg_char (args, &async_exec); |
401 | args = stripped.get (); | |
f67a969f | 402 | |
8bc2fe48 PA |
403 | /* Do validation and preparation before possibly changing anything |
404 | in the inferior. */ | |
39ad761d | 405 | |
b3ccfe11 TT |
406 | run_target = find_run_target (); |
407 | ||
8bc2fe48 PA |
408 | prepare_execution_command (run_target, async_exec); |
409 | ||
f6ac5f3d | 410 | if (non_stop && !run_target->supports_non_stop ()) |
9908b566 VP |
411 | error (_("The target does not support running in non-stop mode.")); |
412 | ||
8bc2fe48 PA |
413 | /* Done. Can now set breakpoints, change inferior args, etc. */ |
414 | ||
4e5a4f58 JB |
415 | /* Insert temporary breakpoint in main function if requested. */ |
416 | if (run_how == RUN_STOP_AT_MAIN) | |
e242fd12 | 417 | { |
0be837be SM |
418 | /* To avoid other inferiors hitting this breakpoint, make it |
419 | inferior-specific using a condition. A better solution would be to | |
420 | have proper inferior-specific breakpoint support, in the breakpoint | |
421 | machinery. We could then avoid inserting a breakpoint in the program | |
422 | spaces unrelated to this inferior. */ | |
075732ad SM |
423 | const char *op |
424 | = ((current_language->la_language == language_ada | |
425 | || current_language->la_language == language_pascal | |
426 | || current_language->la_language == language_m2) ? "=" : "=="); | |
427 | std::string arg = string_printf | |
428 | ("-qualified %s if $_inferior %s %d", main_name (), op, | |
429 | current_inferior ()->num); | |
e242fd12 SM |
430 | tbreak_command (arg.c_str (), 0); |
431 | } | |
8bc2fe48 | 432 | |
7c5ded6a | 433 | exec_file = get_exec_file (0); |
8bc2fe48 | 434 | |
c906108c SS |
435 | /* We keep symbols from add-symbol-file, on the grounds that the |
436 | user might want to add some symbols before running the program | |
437 | (right?). But sometimes (dynamic loading where the user manually | |
438 | introduces the new symbols with add-symbol-file), the code which | |
439 | the symbols describe does not persist between runs. Currently | |
440 | the user has to manually nuke all symbols between runs if they | |
441 | want them to go away (PR 2207). This is probably reasonable. */ | |
442 | ||
8bc2fe48 | 443 | /* If there were other args, beside '&', process them. */ |
03acd4d8 | 444 | if (args != nullptr) |
e5169525 | 445 | current_inferior ()->set_args (args); |
c906108c SS |
446 | |
447 | if (from_tty) | |
448 | { | |
03acd4d8 | 449 | uiout->field_string (nullptr, "Starting program"); |
112e8700 | 450 | uiout->text (": "); |
8b93c638 | 451 | if (exec_file) |
972f7a4b TT |
452 | uiout->field_string ("execfile", exec_file, |
453 | file_name_style.style ()); | |
112e8700 | 454 | uiout->spaces (1); |
e5169525 | 455 | uiout->field_string ("infargs", current_inferior ()->args ()); |
112e8700 SM |
456 | uiout->text ("\n"); |
457 | uiout->flush (); | |
c906108c SS |
458 | } |
459 | ||
f6ac5f3d | 460 | run_target->create_inferior (exec_file, |
e5169525 | 461 | current_inferior ()->args (), |
f6ac5f3d PA |
462 | current_inferior ()->environment.envp (), |
463 | from_tty); | |
b3ccfe11 TT |
464 | /* to_create_inferior should push the target, so after this point we |
465 | shouldn't refer to run_target again. */ | |
03acd4d8 | 466 | run_target = nullptr; |
281b533b | 467 | |
1f9d9e32 AB |
468 | infrun_debug_show_threads ("immediately after create_process", |
469 | current_inferior ()->non_exited_threads ()); | |
470 | ||
29f49a6a PA |
471 | /* We're starting off a new process. When we get out of here, in |
472 | non-stop mode, finish the state of all threads of that process, | |
473 | but leave other threads alone, as they may be stopped in internal | |
474 | events --- the frontend shouldn't see them as stopped. In | |
475 | all-stop, always finish the state of all threads, as we may be | |
476 | resuming more than just the new process. */ | |
5b6d1e4f PA |
477 | process_stratum_target *finish_target; |
478 | ptid_t finish_ptid; | |
479 | if (non_stop) | |
480 | { | |
481 | finish_target = current_inferior ()->process_target (); | |
482 | finish_ptid = ptid_t (current_inferior ()->pid); | |
483 | } | |
484 | else | |
485 | { | |
486 | finish_target = nullptr; | |
487 | finish_ptid = minus_one_ptid; | |
488 | } | |
489 | scoped_finish_thread_state finish_state (finish_target, finish_ptid); | |
29f49a6a | 490 | |
de1b3c3d PA |
491 | /* Pass zero for FROM_TTY, because at this point the "run" command |
492 | has done its thing; now we are setting up the running program. */ | |
a7aba266 | 493 | post_create_inferior (0); |
281b533b | 494 | |
4e5a4f58 JB |
495 | /* Queue a pending event so that the program stops immediately. */ |
496 | if (run_how == RUN_STOP_AT_FIRST_INSN) | |
497 | { | |
498 | thread_info *thr = inferior_thread (); | |
1edb66d8 | 499 | target_waitstatus ws; |
183be222 | 500 | ws.set_stopped (GDB_SIGNAL_0); |
1edb66d8 | 501 | thr->set_pending_waitstatus (ws); |
4e5a4f58 JB |
502 | } |
503 | ||
74d1f91e JK |
504 | /* Start the target running. Do not use -1 continuation as it would skip |
505 | breakpoint right at the entry point. */ | |
64ce06e4 | 506 | proceed (regcache_read_pc (get_current_regcache ()), GDB_SIGNAL_0); |
c906108c | 507 | |
29f49a6a PA |
508 | /* Since there was no error, there's no need to finish the thread |
509 | states here. */ | |
731f534f | 510 | finish_state.release (); |
1192f124 SM |
511 | |
512 | disable_commit_resumed.reset_and_commit (); | |
29f49a6a | 513 | } |
c906108c | 514 | |
f67a969f | 515 | static void |
0b39b52e | 516 | run_command (const char *args, int from_tty) |
f67a969f | 517 | { |
4e5a4f58 | 518 | run_command_1 (args, from_tty, RUN_NORMAL); |
f67a969f JB |
519 | } |
520 | ||
a4d5f2e0 JB |
521 | /* Start the execution of the program up until the beginning of the main |
522 | program. */ | |
523 | ||
524 | static void | |
0b39b52e | 525 | start_command (const char *args, int from_tty) |
a4d5f2e0 JB |
526 | { |
527 | /* Some languages such as Ada need to search inside the program | |
528 | minimal symbols for the location where to put the temporary | |
529 | breakpoint before starting. */ | |
530 | if (!have_minimal_symbols ()) | |
8a3fe4f8 | 531 | error (_("No symbol table loaded. Use the \"file\" command.")); |
a4d5f2e0 | 532 | |
f67a969f | 533 | /* Run the program until reaching the main procedure... */ |
4e5a4f58 JB |
534 | run_command_1 (args, from_tty, RUN_STOP_AT_MAIN); |
535 | } | |
536 | ||
537 | /* Start the execution of the program stopping at the first | |
538 | instruction. */ | |
539 | ||
540 | static void | |
0b39b52e | 541 | starti_command (const char *args, int from_tty) |
4e5a4f58 JB |
542 | { |
543 | run_command_1 (args, from_tty, RUN_STOP_AT_FIRST_INSN); | |
a4d5f2e0 JB |
544 | } |
545 | ||
8cae4b3f PA |
546 | static int |
547 | proceed_thread_callback (struct thread_info *thread, void *arg) | |
548 | { | |
74531fed PA |
549 | /* We go through all threads individually instead of compressing |
550 | into a single target `resume_all' request, because some threads | |
551 | may be stopped in internal breakpoints/events, or stopped waiting | |
552 | for its turn in the displaced stepping queue (that is, they are | |
553 | running && !executing). The target side has no idea about why | |
554 | the thread is stopped, so a `resume_all' command would resume too | |
555 | much. If/when GDB gains a way to tell the target `hold this | |
556 | thread stopped until I say otherwise', then we can optimize | |
557 | this. */ | |
00431a78 | 558 | if (thread->state != THREAD_STOPPED) |
8cae4b3f PA |
559 | return 0; |
560 | ||
5b6d1e4f PA |
561 | if (!thread->inf->has_execution ()) |
562 | return 0; | |
563 | ||
00431a78 | 564 | switch_to_thread (thread); |
70509625 | 565 | clear_proceed_status (0); |
64ce06e4 | 566 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT); |
8cae4b3f PA |
567 | return 0; |
568 | } | |
569 | ||
70221824 | 570 | static void |
d729566a PA |
571 | ensure_valid_thread (void) |
572 | { | |
00431a78 PA |
573 | if (inferior_ptid == null_ptid |
574 | || inferior_thread ()->state == THREAD_EXITED) | |
3e43a32a | 575 | error (_("Cannot execute this command without a live selected thread.")); |
d729566a PA |
576 | } |
577 | ||
573cda03 | 578 | /* If the user is looking at trace frames, any resumption of execution |
1777feb0 | 579 | is likely to mix up recorded and live target data. So simply |
573cda03 SS |
580 | disallow those commands. */ |
581 | ||
70221824 | 582 | static void |
573cda03 SS |
583 | ensure_not_tfind_mode (void) |
584 | { | |
585 | if (get_traceframe_number () >= 0) | |
3e43a32a | 586 | error (_("Cannot execute this command while looking at trace frames.")); |
573cda03 SS |
587 | } |
588 | ||
3d3fef6b YQ |
589 | /* Throw an error indicating the current thread is running. */ |
590 | ||
591 | static void | |
592 | error_is_running (void) | |
593 | { | |
594 | error (_("Cannot execute this command while " | |
595 | "the selected thread is running.")); | |
596 | } | |
597 | ||
598 | /* Calls error_is_running if the current thread is running. */ | |
599 | ||
600 | static void | |
601 | ensure_not_running (void) | |
602 | { | |
00431a78 | 603 | if (inferior_thread ()->state == THREAD_RUNNING) |
3d3fef6b YQ |
604 | error_is_running (); |
605 | } | |
606 | ||
77ebaa5a VP |
607 | void |
608 | continue_1 (int all_threads) | |
609 | { | |
3d488bfc | 610 | ERROR_NO_INFERIOR; |
573cda03 | 611 | ensure_not_tfind_mode (); |
3d488bfc | 612 | |
77ebaa5a VP |
613 | if (non_stop && all_threads) |
614 | { | |
615 | /* Don't error out if the current thread is running, because | |
abbb1732 | 616 | there may be other stopped threads. */ |
77ebaa5a | 617 | |
5ed8105e PA |
618 | /* Backup current thread and selected frame and restore on scope |
619 | exit. */ | |
620 | scoped_restore_current_thread restore_thread; | |
6f4cb31c SM |
621 | scoped_disable_commit_resumed disable_commit_resumed |
622 | ("continue all threads in non-stop"); | |
77ebaa5a | 623 | |
03acd4d8 | 624 | iterate_over_threads (proceed_thread_callback, nullptr); |
77ebaa5a | 625 | |
3b12939d | 626 | if (current_ui->prompt_state == PROMPT_BLOCKED) |
0ff33695 PA |
627 | { |
628 | /* If all threads in the target were already running, | |
629 | proceed_thread_callback ends up never calling proceed, | |
630 | and so nothing calls this to put the inferior's terminal | |
631 | settings in effect and remove stdin from the event loop, | |
632 | which we must when running a foreground command. E.g.: | |
633 | ||
634 | (gdb) c -a& | |
635 | Continuing. | |
636 | <all threads are running now> | |
637 | (gdb) c -a | |
638 | Continuing. | |
639 | <no thread was resumed, but the inferior now owns the terminal> | |
640 | */ | |
223ffa71 | 641 | target_terminal::inferior (); |
0ff33695 | 642 | } |
6f4cb31c SM |
643 | |
644 | disable_commit_resumed.reset_and_commit (); | |
77ebaa5a VP |
645 | } |
646 | else | |
647 | { | |
d729566a | 648 | ensure_valid_thread (); |
77ebaa5a | 649 | ensure_not_running (); |
70509625 | 650 | clear_proceed_status (0); |
64ce06e4 | 651 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT); |
77ebaa5a VP |
652 | } |
653 | } | |
654 | ||
8cae4b3f | 655 | /* continue [-a] [proceed-count] [&] */ |
6339bfc4 | 656 | |
1dd5fedc | 657 | static void |
0b39b52e | 658 | continue_command (const char *args, int from_tty) |
c906108c | 659 | { |
6c4486e6 | 660 | int async_exec; |
5b6d1e4f | 661 | bool all_threads_p = false; |
6c4486e6 | 662 | |
c906108c SS |
663 | ERROR_NO_INFERIOR; |
664 | ||
1777feb0 | 665 | /* Find out whether we must run in the background. */ |
6be9a197 TT |
666 | gdb::unique_xmalloc_ptr<char> stripped = strip_bg_char (args, &async_exec); |
667 | args = stripped.get (); | |
43ff13b4 | 668 | |
03acd4d8 | 669 | if (args != nullptr) |
8cae4b3f | 670 | { |
61012eef | 671 | if (startswith (args, "-a")) |
8cae4b3f | 672 | { |
5b6d1e4f | 673 | all_threads_p = true; |
8cae4b3f PA |
674 | args += sizeof ("-a") - 1; |
675 | if (*args == '\0') | |
03acd4d8 | 676 | args = nullptr; |
8cae4b3f PA |
677 | } |
678 | } | |
679 | ||
5b6d1e4f | 680 | if (!non_stop && all_threads_p) |
8cae4b3f PA |
681 | error (_("`-a' is meaningless in all-stop mode.")); |
682 | ||
03acd4d8 | 683 | if (args != nullptr && all_threads_p) |
3e43a32a MS |
684 | error (_("Can't resume all threads and specify " |
685 | "proceed count simultaneously.")); | |
8cae4b3f PA |
686 | |
687 | /* If we have an argument left, set proceed count of breakpoint we | |
688 | stopped at. */ | |
03acd4d8 | 689 | if (args != nullptr) |
c906108c | 690 | { |
313f3b21 | 691 | bpstat *bs = nullptr; |
8671a17b PA |
692 | int num, stat; |
693 | int stopped = 0; | |
347bddb7 PA |
694 | struct thread_info *tp; |
695 | ||
696 | if (non_stop) | |
00431a78 | 697 | tp = inferior_thread (); |
347bddb7 PA |
698 | else |
699 | { | |
5b6d1e4f | 700 | process_stratum_target *last_target; |
347bddb7 | 701 | ptid_t last_ptid; |
347bddb7 | 702 | |
5b6d1e4f | 703 | get_last_target_status (&last_target, &last_ptid, nullptr); |
9213a6d7 | 704 | tp = last_target->find_thread (last_ptid); |
347bddb7 | 705 | } |
03acd4d8 | 706 | if (tp != nullptr) |
16c381f0 | 707 | bs = tp->control.stop_bpstat; |
8671a17b PA |
708 | |
709 | while ((stat = bpstat_num (&bs, &num)) != 0) | |
710 | if (stat > 0) | |
711 | { | |
712 | set_ignore_count (num, | |
8cae4b3f | 713 | parse_and_eval_long (args) - 1, |
8671a17b PA |
714 | from_tty); |
715 | /* set_ignore_count prints a message ending with a period. | |
716 | So print two spaces before "Continuing.". */ | |
717 | if (from_tty) | |
6cb06a8c | 718 | gdb_printf (" "); |
8671a17b PA |
719 | stopped = 1; |
720 | } | |
721 | ||
722 | if (!stopped && from_tty) | |
c906108c | 723 | { |
6cb06a8c | 724 | gdb_printf |
c906108c SS |
725 | ("Not stopped at any breakpoint; argument ignored.\n"); |
726 | } | |
c906108c SS |
727 | } |
728 | ||
3b12939d PA |
729 | ensure_not_tfind_mode (); |
730 | ||
5b6d1e4f | 731 | if (!non_stop || !all_threads_p) |
3b12939d PA |
732 | { |
733 | ensure_valid_thread (); | |
734 | ensure_not_running (); | |
735 | } | |
736 | ||
328d42d8 | 737 | prepare_execution_command (current_inferior ()->top_target (), async_exec); |
3b12939d | 738 | |
c906108c | 739 | if (from_tty) |
6cb06a8c | 740 | gdb_printf (_("Continuing.\n")); |
c906108c | 741 | |
5b6d1e4f | 742 | continue_1 (all_threads_p); |
c906108c SS |
743 | } |
744 | \f | |
29734269 | 745 | /* Record in TP the starting point of a "step" or "next" command. */ |
edb3359d DJ |
746 | |
747 | static void | |
29734269 | 748 | set_step_frame (thread_info *tp) |
edb3359d | 749 | { |
29734269 SM |
750 | /* This can be removed once this function no longer implicitly relies on the |
751 | inferior_ptid value. */ | |
752 | gdb_assert (inferior_ptid == tp->ptid); | |
753 | ||
bd2b40ac | 754 | frame_info_ptr frame = get_current_frame (); |
edb3359d | 755 | |
51abb421 | 756 | symtab_and_line sal = find_frame_sal (frame); |
29734269 | 757 | set_step_info (tp, frame, sal); |
51abb421 PA |
758 | |
759 | CORE_ADDR pc = get_frame_pc (frame); | |
64ce06e4 | 760 | tp->control.step_start_function = find_pc_function (pc); |
edb3359d DJ |
761 | } |
762 | ||
c906108c SS |
763 | /* Step until outside of current statement. */ |
764 | ||
c906108c | 765 | static void |
0b39b52e | 766 | step_command (const char *count_string, int from_tty) |
c906108c SS |
767 | { |
768 | step_1 (0, 0, count_string); | |
769 | } | |
770 | ||
771 | /* Likewise, but skip over subroutine calls as if single instructions. */ | |
772 | ||
c906108c | 773 | static void |
0b39b52e | 774 | next_command (const char *count_string, int from_tty) |
c906108c SS |
775 | { |
776 | step_1 (1, 0, count_string); | |
777 | } | |
778 | ||
779 | /* Likewise, but step only one instruction. */ | |
780 | ||
1dd5fedc | 781 | static void |
0b39b52e | 782 | stepi_command (const char *count_string, int from_tty) |
c906108c SS |
783 | { |
784 | step_1 (0, 1, count_string); | |
785 | } | |
786 | ||
1dd5fedc | 787 | static void |
0b39b52e | 788 | nexti_command (const char *count_string, int from_tty) |
c906108c SS |
789 | { |
790 | step_1 (1, 1, count_string); | |
791 | } | |
792 | ||
243a9253 PA |
793 | /* Data for the FSM that manages the step/next/stepi/nexti |
794 | commands. */ | |
795 | ||
46e3ed7f | 796 | struct step_command_fsm : public thread_fsm |
243a9253 | 797 | { |
243a9253 PA |
798 | /* How many steps left in a "step N"-like command. */ |
799 | int count; | |
800 | ||
801 | /* If true, this is a next/nexti, otherwise a step/stepi. */ | |
802 | int skip_subroutines; | |
803 | ||
804 | /* If true, this is a stepi/nexti, otherwise a step/step. */ | |
805 | int single_inst; | |
243a9253 | 806 | |
46e3ed7f TT |
807 | explicit step_command_fsm (struct interp *cmd_interp) |
808 | : thread_fsm (cmd_interp) | |
809 | { | |
810 | } | |
243a9253 | 811 | |
46e3ed7f TT |
812 | void clean_up (struct thread_info *thread) override; |
813 | bool should_stop (struct thread_info *thread) override; | |
814 | enum async_reply_reason do_async_reply_reason () override; | |
243a9253 PA |
815 | }; |
816 | ||
243a9253 PA |
817 | /* Prepare for a step/next/etc. command. Any target resource |
818 | allocated here is undone in the FSM's clean_up method. */ | |
819 | ||
820 | static void | |
821 | step_command_fsm_prepare (struct step_command_fsm *sm, | |
822 | int skip_subroutines, int single_inst, | |
823 | int count, struct thread_info *thread) | |
824 | { | |
825 | sm->skip_subroutines = skip_subroutines; | |
826 | sm->single_inst = single_inst; | |
827 | sm->count = count; | |
243a9253 PA |
828 | |
829 | /* Leave the si command alone. */ | |
830 | if (!sm->single_inst || sm->skip_subroutines) | |
831 | set_longjmp_breakpoint (thread, get_frame_id (get_current_frame ())); | |
832 | ||
833 | thread->control.stepping_command = 1; | |
834 | } | |
835 | ||
29734269 | 836 | static int prepare_one_step (thread_info *, struct step_command_fsm *sm); |
243a9253 | 837 | |
c906108c | 838 | static void |
0b39b52e | 839 | step_1 (int skip_subroutines, int single_inst, const char *count_string) |
c906108c | 840 | { |
243a9253 | 841 | int count; |
6c4486e6 | 842 | int async_exec; |
243a9253 PA |
843 | struct thread_info *thr; |
844 | struct step_command_fsm *step_sm; | |
c5aa993b | 845 | |
c906108c | 846 | ERROR_NO_INFERIOR; |
573cda03 | 847 | ensure_not_tfind_mode (); |
d729566a | 848 | ensure_valid_thread (); |
94cc34af | 849 | ensure_not_running (); |
43ff13b4 | 850 | |
6be9a197 TT |
851 | gdb::unique_xmalloc_ptr<char> stripped |
852 | = strip_bg_char (count_string, &async_exec); | |
853 | count_string = stripped.get (); | |
c5aa993b | 854 | |
328d42d8 | 855 | prepare_execution_command (current_inferior ()->top_target (), async_exec); |
43ff13b4 | 856 | |
bb518678 | 857 | count = count_string ? parse_and_eval_long (count_string) : 1; |
c906108c | 858 | |
243a9253 | 859 | clear_proceed_status (1); |
611c83ae | 860 | |
243a9253 PA |
861 | /* Setup the execution command state machine to handle all the COUNT |
862 | steps. */ | |
863 | thr = inferior_thread (); | |
46e3ed7f | 864 | step_sm = new step_command_fsm (command_interp ()); |
573269a8 | 865 | thr->set_thread_fsm (std::unique_ptr<thread_fsm> (step_sm)); |
611c83ae | 866 | |
243a9253 PA |
867 | step_command_fsm_prepare (step_sm, skip_subroutines, |
868 | single_inst, count, thr); | |
c2d11a7d | 869 | |
0b333c5e PA |
870 | /* Do only one step for now, before returning control to the event |
871 | loop. Let the continuation figure out how many other steps we | |
872 | need to do, and handle them one at the time, through | |
873 | step_once. */ | |
29734269 | 874 | if (!prepare_one_step (thr, step_sm)) |
243a9253 PA |
875 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT); |
876 | else | |
877 | { | |
878 | /* Stepped into an inline frame. Pretend that we've | |
879 | stopped. */ | |
573269a8 | 880 | thr->thread_fsm ()->clean_up (thr); |
8dd08de7 | 881 | bool proceeded = normal_stop (); |
3b12939d | 882 | if (!proceeded) |
b1a35af2 | 883 | inferior_event_handler (INF_EXEC_COMPLETE); |
3b12939d | 884 | all_uis_check_sync_execution_done (); |
243a9253 | 885 | } |
c2d11a7d | 886 | } |
c906108c | 887 | |
243a9253 PA |
888 | /* Implementation of the 'should_stop' FSM method for stepping |
889 | commands. Called after we are done with one step operation, to | |
890 | check whether we need to step again, before we print the prompt and | |
891 | return control to the user. If count is > 1, returns false, as we | |
892 | will need to keep going. */ | |
6339bfc4 | 893 | |
46e3ed7f TT |
894 | bool |
895 | step_command_fsm::should_stop (struct thread_info *tp) | |
c2d11a7d | 896 | { |
243a9253 | 897 | if (tp->control.stop_step) |
f13468d9 | 898 | { |
243a9253 PA |
899 | /* There are more steps to make, and we did stop due to |
900 | ending a stepping range. Do another step. */ | |
46e3ed7f | 901 | if (--count > 0) |
29734269 | 902 | return prepare_one_step (tp, this); |
af679fd0 | 903 | |
46e3ed7f | 904 | set_finished (); |
f107f563 | 905 | } |
af679fd0 | 906 | |
46e3ed7f | 907 | return true; |
c2d11a7d JM |
908 | } |
909 | ||
243a9253 | 910 | /* Implementation of the 'clean_up' FSM method for stepping commands. */ |
37d94800 | 911 | |
46e3ed7f TT |
912 | void |
913 | step_command_fsm::clean_up (struct thread_info *thread) | |
bfec99b2 | 914 | { |
46e3ed7f | 915 | if (!single_inst || skip_subroutines) |
8980e177 | 916 | delete_longjmp_breakpoint (thread->global_num); |
243a9253 PA |
917 | } |
918 | ||
919 | /* Implementation of the 'async_reply_reason' FSM method for stepping | |
920 | commands. */ | |
921 | ||
46e3ed7f TT |
922 | enum async_reply_reason |
923 | step_command_fsm::do_async_reply_reason () | |
243a9253 PA |
924 | { |
925 | return EXEC_ASYNC_END_STEPPING_RANGE; | |
926 | } | |
927 | ||
928 | /* Prepare for one step in "step N". The actual target resumption is | |
929 | done by the caller. Return true if we're done and should thus | |
930 | report a stop to the user. Returns false if the target needs to be | |
931 | resumed. */ | |
c2d11a7d | 932 | |
243a9253 | 933 | static int |
29734269 | 934 | prepare_one_step (thread_info *tp, struct step_command_fsm *sm) |
243a9253 | 935 | { |
29734269 SM |
936 | /* This can be removed once this function no longer implicitly relies on the |
937 | inferior_ptid value. */ | |
938 | gdb_assert (inferior_ptid == tp->ptid); | |
939 | ||
243a9253 | 940 | if (sm->count > 0) |
c906108c | 941 | { |
bd2b40ac | 942 | frame_info_ptr frame = get_current_frame (); |
243a9253 | 943 | |
29734269 | 944 | set_step_frame (tp); |
c906108c | 945 | |
243a9253 | 946 | if (!sm->single_inst) |
c906108c | 947 | { |
1641cfcc PA |
948 | CORE_ADDR pc; |
949 | ||
edb3359d | 950 | /* Step at an inlined function behaves like "down". */ |
243a9253 | 951 | if (!sm->skip_subroutines |
00431a78 | 952 | && inline_skipped_frames (tp)) |
edb3359d | 953 | { |
09cee04b | 954 | ptid_t resume_ptid; |
03acd4d8 | 955 | const char *fn = nullptr; |
4a4c04f1 BE |
956 | symtab_and_line sal; |
957 | struct symbol *sym; | |
09cee04b PA |
958 | |
959 | /* Pretend that we've ran. */ | |
960 | resume_ptid = user_visible_resume_ptid (1); | |
5b6d1e4f | 961 | set_running (tp->inf->process_target (), resume_ptid, true); |
09cee04b | 962 | |
00431a78 | 963 | step_into_inline_frame (tp); |
4a4c04f1 BE |
964 | |
965 | frame = get_current_frame (); | |
966 | sal = find_frame_sal (frame); | |
967 | sym = get_frame_function (frame); | |
968 | ||
03acd4d8 | 969 | if (sym != nullptr) |
4a4c04f1 BE |
970 | fn = sym->print_name (); |
971 | ||
972 | if (sal.line == 0 | |
973 | || !function_name_is_marked_for_skip (fn, sal)) | |
974 | { | |
975 | sm->count--; | |
29734269 | 976 | return prepare_one_step (tp, sm); |
4a4c04f1 | 977 | } |
edb3359d DJ |
978 | } |
979 | ||
1641cfcc PA |
980 | pc = get_frame_pc (frame); |
981 | find_pc_line_pc_range (pc, | |
16c381f0 JK |
982 | &tp->control.step_range_start, |
983 | &tp->control.step_range_end); | |
5fbbeb29 | 984 | |
340d00fb TV |
985 | /* There's a problem in gcc (PR gcc/98780) that causes missing line |
986 | table entries, which results in a too large stepping range. | |
987 | Use inlined_subroutine info to make the range more narrow. */ | |
988 | if (inline_skipped_frames (tp) > 0) | |
989 | { | |
990 | symbol *sym = inline_skipped_symbol (tp); | |
66d7f48f | 991 | if (sym->aclass () == LOC_BLOCK) |
340d00fb | 992 | { |
4aeddc50 | 993 | const block *block = sym->value_block (); |
4b8791e1 SM |
994 | if (block->end () < tp->control.step_range_end) |
995 | tp->control.step_range_end = block->end (); | |
340d00fb TV |
996 | } |
997 | } | |
998 | ||
c1e36e3e PA |
999 | tp->control.may_range_step = 1; |
1000 | ||
5fbbeb29 | 1001 | /* If we have no line info, switch to stepi mode. */ |
16c381f0 | 1002 | if (tp->control.step_range_end == 0 && step_stop_if_no_debug) |
c1e36e3e PA |
1003 | { |
1004 | tp->control.step_range_start = tp->control.step_range_end = 1; | |
1005 | tp->control.may_range_step = 0; | |
1006 | } | |
16c381f0 | 1007 | else if (tp->control.step_range_end == 0) |
c906108c | 1008 | { |
2c02bd72 | 1009 | const char *name; |
abbb1732 | 1010 | |
1641cfcc | 1011 | if (find_pc_partial_function (pc, &name, |
16c381f0 JK |
1012 | &tp->control.step_range_start, |
1013 | &tp->control.step_range_end) == 0) | |
8a3fe4f8 | 1014 | error (_("Cannot find bounds of current function")); |
c906108c | 1015 | |
223ffa71 | 1016 | target_terminal::ours_for_output (); |
6cb06a8c TT |
1017 | gdb_printf (_("Single stepping until exit from function %s," |
1018 | "\nwhich has no line number information.\n"), | |
1019 | name); | |
c906108c SS |
1020 | } |
1021 | } | |
1022 | else | |
1023 | { | |
1024 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
16c381f0 | 1025 | tp->control.step_range_start = tp->control.step_range_end = 1; |
243a9253 | 1026 | if (!sm->skip_subroutines) |
c906108c SS |
1027 | /* It is stepi. |
1028 | Don't step over function calls, not even to functions lacking | |
1029 | line numbers. */ | |
16c381f0 | 1030 | tp->control.step_over_calls = STEP_OVER_NONE; |
c906108c SS |
1031 | } |
1032 | ||
243a9253 | 1033 | if (sm->skip_subroutines) |
16c381f0 | 1034 | tp->control.step_over_calls = STEP_OVER_ALL; |
c906108c | 1035 | |
243a9253 | 1036 | return 0; |
c906108c | 1037 | } |
243a9253 PA |
1038 | |
1039 | /* Done. */ | |
46e3ed7f | 1040 | sm->set_finished (); |
243a9253 | 1041 | return 1; |
c906108c | 1042 | } |
c2d11a7d | 1043 | |
c906108c SS |
1044 | \f |
1045 | /* Continue program at specified address. */ | |
1046 | ||
1047 | static void | |
0b39b52e | 1048 | jump_command (const char *arg, int from_tty) |
c906108c | 1049 | { |
5af949e3 | 1050 | struct gdbarch *gdbarch = get_current_arch (); |
52f0bd74 | 1051 | CORE_ADDR addr; |
c906108c SS |
1052 | struct symbol *fn; |
1053 | struct symbol *sfn; | |
6c4486e6 | 1054 | int async_exec; |
c5aa993b | 1055 | |
c906108c | 1056 | ERROR_NO_INFERIOR; |
573cda03 | 1057 | ensure_not_tfind_mode (); |
d729566a | 1058 | ensure_valid_thread (); |
94cc34af | 1059 | ensure_not_running (); |
c906108c | 1060 | |
1777feb0 | 1061 | /* Find out whether we must run in the background. */ |
6be9a197 TT |
1062 | gdb::unique_xmalloc_ptr<char> stripped = strip_bg_char (arg, &async_exec); |
1063 | arg = stripped.get (); | |
43ff13b4 | 1064 | |
328d42d8 | 1065 | prepare_execution_command (current_inferior ()->top_target (), async_exec); |
43ff13b4 | 1066 | |
c906108c | 1067 | if (!arg) |
e2e0b3e5 | 1068 | error_no_arg (_("starting address")); |
c906108c | 1069 | |
6c5b2ebe PA |
1070 | std::vector<symtab_and_line> sals |
1071 | = decode_line_with_last_displayed (arg, DECODE_LINE_FUNFIRSTLINE); | |
1072 | if (sals.size () != 1) | |
1073 | error (_("Unreasonable jump request")); | |
c906108c | 1074 | |
6c5b2ebe PA |
1075 | symtab_and_line &sal = sals[0]; |
1076 | ||
c906108c | 1077 | if (sal.symtab == 0 && sal.pc == 0) |
8a3fe4f8 | 1078 | error (_("No source file has been specified.")); |
c906108c | 1079 | |
1777feb0 | 1080 | resolve_sal_pc (&sal); /* May error out. */ |
c906108c | 1081 | |
1777feb0 | 1082 | /* See if we are trying to jump to another function. */ |
c906108c SS |
1083 | fn = get_frame_function (get_current_frame ()); |
1084 | sfn = find_pc_function (sal.pc); | |
03acd4d8 | 1085 | if (fn != nullptr && sfn != fn) |
c906108c | 1086 | { |
9e2f0ad4 | 1087 | if (!query (_("Line %d is not in `%s'. Jump anyway? "), sal.line, |
987012b8 | 1088 | fn->print_name ())) |
c906108c | 1089 | { |
8a3fe4f8 | 1090 | error (_("Not confirmed.")); |
c906108c SS |
1091 | /* NOTREACHED */ |
1092 | } | |
1093 | } | |
1094 | ||
03acd4d8 | 1095 | if (sfn != nullptr) |
c906108c | 1096 | { |
253342b8 DE |
1097 | struct obj_section *section; |
1098 | ||
e19b2d94 | 1099 | section = sfn->obj_section (sfn->objfile ()); |
253342b8 DE |
1100 | if (section_is_overlay (section) |
1101 | && !section_is_mapped (section)) | |
c906108c | 1102 | { |
3e43a32a MS |
1103 | if (!query (_("WARNING!!! Destination is in " |
1104 | "unmapped overlay! Jump anyway? "))) | |
c906108c | 1105 | { |
8a3fe4f8 | 1106 | error (_("Not confirmed.")); |
c906108c SS |
1107 | /* NOTREACHED */ |
1108 | } | |
1109 | } | |
1110 | } | |
1111 | ||
c906108c SS |
1112 | addr = sal.pc; |
1113 | ||
1114 | if (from_tty) | |
1115 | { | |
6cb06a8c | 1116 | gdb_printf (_("Continuing at ")); |
0426ad51 | 1117 | gdb_puts (paddress (gdbarch, addr)); |
6cb06a8c | 1118 | gdb_printf (".\n"); |
c906108c SS |
1119 | } |
1120 | ||
70509625 | 1121 | clear_proceed_status (0); |
64ce06e4 | 1122 | proceed (addr, GDB_SIGNAL_0); |
c906108c | 1123 | } |
c906108c | 1124 | \f |
c906108c SS |
1125 | /* Continue program giving it specified signal. */ |
1126 | ||
1127 | static void | |
0b39b52e | 1128 | signal_command (const char *signum_exp, int from_tty) |
c906108c | 1129 | { |
2ea28649 | 1130 | enum gdb_signal oursig; |
6c4486e6 | 1131 | int async_exec; |
c906108c SS |
1132 | |
1133 | dont_repeat (); /* Too dangerous. */ | |
1134 | ERROR_NO_INFERIOR; | |
573cda03 | 1135 | ensure_not_tfind_mode (); |
d729566a | 1136 | ensure_valid_thread (); |
94cc34af | 1137 | ensure_not_running (); |
c906108c | 1138 | |
32c1e744 | 1139 | /* Find out whether we must run in the background. */ |
6be9a197 TT |
1140 | gdb::unique_xmalloc_ptr<char> stripped |
1141 | = strip_bg_char (signum_exp, &async_exec); | |
1142 | signum_exp = stripped.get (); | |
32c1e744 | 1143 | |
328d42d8 | 1144 | prepare_execution_command (current_inferior ()->top_target (), async_exec); |
32c1e744 | 1145 | |
c906108c | 1146 | if (!signum_exp) |
e2e0b3e5 | 1147 | error_no_arg (_("signal number")); |
c906108c SS |
1148 | |
1149 | /* It would be even slicker to make signal names be valid expressions, | |
1150 | (the type could be "enum $signal" or some such), then the user could | |
1151 | assign them to convenience variables. */ | |
2ea28649 | 1152 | oursig = gdb_signal_from_name (signum_exp); |
c906108c | 1153 | |
a493e3e2 | 1154 | if (oursig == GDB_SIGNAL_UNKNOWN) |
c906108c SS |
1155 | { |
1156 | /* No, try numeric. */ | |
bb518678 | 1157 | int num = parse_and_eval_long (signum_exp); |
c906108c SS |
1158 | |
1159 | if (num == 0) | |
a493e3e2 | 1160 | oursig = GDB_SIGNAL_0; |
c906108c | 1161 | else |
2ea28649 | 1162 | oursig = gdb_signal_from_command (num); |
c906108c SS |
1163 | } |
1164 | ||
70509625 PA |
1165 | /* Look for threads other than the current that this command ends up |
1166 | resuming too (due to schedlock off), and warn if they'll get a | |
1167 | signal delivered. "signal 0" is used to suppress a previous | |
1168 | signal, but if the current thread is no longer the one that got | |
1169 | the signal, then the user is potentially suppressing the signal | |
1170 | of the wrong thread. */ | |
1171 | if (!non_stop) | |
1172 | { | |
70509625 PA |
1173 | int must_confirm = 0; |
1174 | ||
1175 | /* This indicates what will be resumed. Either a single thread, | |
1176 | a whole process, or all threads of all processes. */ | |
08036331 | 1177 | ptid_t resume_ptid = user_visible_resume_ptid (0); |
5b6d1e4f PA |
1178 | process_stratum_target *resume_target |
1179 | = user_visible_resume_target (resume_ptid); | |
70509625 | 1180 | |
5b6d1e4f PA |
1181 | thread_info *current = inferior_thread (); |
1182 | ||
1183 | for (thread_info *tp : all_non_exited_threads (resume_target, resume_ptid)) | |
70509625 | 1184 | { |
5b6d1e4f | 1185 | if (tp == current) |
70509625 | 1186 | continue; |
70509625 | 1187 | |
1edb66d8 SM |
1188 | if (tp->stop_signal () != GDB_SIGNAL_0 |
1189 | && signal_pass_state (tp->stop_signal ())) | |
70509625 PA |
1190 | { |
1191 | if (!must_confirm) | |
6cb06a8c TT |
1192 | gdb_printf (_("Note:\n")); |
1193 | gdb_printf (_(" Thread %s previously stopped with signal %s, %s.\n"), | |
1194 | print_thread_id (tp), | |
1195 | gdb_signal_to_name (tp->stop_signal ()), | |
1196 | gdb_signal_to_string (tp->stop_signal ())); | |
70509625 PA |
1197 | must_confirm = 1; |
1198 | } | |
1199 | } | |
1200 | ||
1201 | if (must_confirm | |
43792cf0 | 1202 | && !query (_("Continuing thread %s (the current thread) with specified signal will\n" |
70509625 PA |
1203 | "still deliver the signals noted above to their respective threads.\n" |
1204 | "Continue anyway? "), | |
43792cf0 | 1205 | print_thread_id (inferior_thread ()))) |
70509625 PA |
1206 | error (_("Not confirmed.")); |
1207 | } | |
1208 | ||
c906108c SS |
1209 | if (from_tty) |
1210 | { | |
a493e3e2 | 1211 | if (oursig == GDB_SIGNAL_0) |
6cb06a8c | 1212 | gdb_printf (_("Continuing with no signal.\n")); |
c906108c | 1213 | else |
6cb06a8c TT |
1214 | gdb_printf (_("Continuing with signal %s.\n"), |
1215 | gdb_signal_to_name (oursig)); | |
c906108c SS |
1216 | } |
1217 | ||
70509625 | 1218 | clear_proceed_status (0); |
64ce06e4 | 1219 | proceed ((CORE_ADDR) -1, oursig); |
c906108c SS |
1220 | } |
1221 | ||
81219e53 DE |
1222 | /* Queue a signal to be delivered to the current thread. */ |
1223 | ||
1224 | static void | |
0b39b52e | 1225 | queue_signal_command (const char *signum_exp, int from_tty) |
81219e53 DE |
1226 | { |
1227 | enum gdb_signal oursig; | |
1228 | struct thread_info *tp; | |
1229 | ||
1230 | ERROR_NO_INFERIOR; | |
1231 | ensure_not_tfind_mode (); | |
1232 | ensure_valid_thread (); | |
1233 | ensure_not_running (); | |
1234 | ||
03acd4d8 | 1235 | if (signum_exp == nullptr) |
81219e53 DE |
1236 | error_no_arg (_("signal number")); |
1237 | ||
1238 | /* It would be even slicker to make signal names be valid expressions, | |
1239 | (the type could be "enum $signal" or some such), then the user could | |
1240 | assign them to convenience variables. */ | |
1241 | oursig = gdb_signal_from_name (signum_exp); | |
1242 | ||
1243 | if (oursig == GDB_SIGNAL_UNKNOWN) | |
1244 | { | |
1245 | /* No, try numeric. */ | |
1246 | int num = parse_and_eval_long (signum_exp); | |
1247 | ||
1248 | if (num == 0) | |
1249 | oursig = GDB_SIGNAL_0; | |
1250 | else | |
1251 | oursig = gdb_signal_from_command (num); | |
1252 | } | |
1253 | ||
1254 | if (oursig != GDB_SIGNAL_0 | |
1255 | && !signal_pass_state (oursig)) | |
1256 | error (_("Signal handling set to not pass this signal to the program.")); | |
1257 | ||
1258 | tp = inferior_thread (); | |
1edb66d8 | 1259 | tp->set_stop_signal (oursig); |
81219e53 DE |
1260 | } |
1261 | ||
cfc31633 PA |
1262 | /* Data for the FSM that manages the until (with no argument) |
1263 | command. */ | |
1264 | ||
46e3ed7f | 1265 | struct until_next_fsm : public thread_fsm |
fa4cd53f | 1266 | { |
cfc31633 | 1267 | /* The thread that as current when the command was executed. */ |
fa4cd53f | 1268 | int thread; |
cfc31633 | 1269 | |
46e3ed7f TT |
1270 | until_next_fsm (struct interp *cmd_interp, int thread) |
1271 | : thread_fsm (cmd_interp), | |
1272 | thread (thread) | |
1273 | { | |
1274 | } | |
cfc31633 | 1275 | |
46e3ed7f TT |
1276 | bool should_stop (struct thread_info *thread) override; |
1277 | void clean_up (struct thread_info *thread) override; | |
1278 | enum async_reply_reason do_async_reply_reason () override; | |
cfc31633 PA |
1279 | }; |
1280 | ||
cfc31633 PA |
1281 | /* Implementation of the 'should_stop' FSM method for the until (with |
1282 | no arg) command. */ | |
1283 | ||
46e3ed7f TT |
1284 | bool |
1285 | until_next_fsm::should_stop (struct thread_info *tp) | |
cfc31633 | 1286 | { |
cfc31633 | 1287 | if (tp->control.stop_step) |
46e3ed7f | 1288 | set_finished (); |
cfc31633 | 1289 | |
46e3ed7f | 1290 | return true; |
cfc31633 PA |
1291 | } |
1292 | ||
1293 | /* Implementation of the 'clean_up' FSM method for the until (with no | |
1294 | arg) command. */ | |
186c406b | 1295 | |
46e3ed7f TT |
1296 | void |
1297 | until_next_fsm::clean_up (struct thread_info *thread) | |
186c406b | 1298 | { |
8980e177 | 1299 | delete_longjmp_breakpoint (thread->global_num); |
cfc31633 PA |
1300 | } |
1301 | ||
1302 | /* Implementation of the 'async_reply_reason' FSM method for the until | |
1303 | (with no arg) command. */ | |
1304 | ||
46e3ed7f TT |
1305 | enum async_reply_reason |
1306 | until_next_fsm::do_async_reply_reason () | |
cfc31633 PA |
1307 | { |
1308 | return EXEC_ASYNC_END_STEPPING_RANGE; | |
186c406b TT |
1309 | } |
1310 | ||
c906108c SS |
1311 | /* Proceed until we reach a different source line with pc greater than |
1312 | our current one or exit the function. We skip calls in both cases. | |
1313 | ||
1314 | Note that eventually this command should probably be changed so | |
1315 | that only source lines are printed out when we hit the breakpoint | |
1316 | we set. This may involve changes to wait_for_inferior and the | |
1317 | proceed status code. */ | |
1318 | ||
c906108c | 1319 | static void |
fba45db2 | 1320 | until_next_command (int from_tty) |
c906108c | 1321 | { |
bd2b40ac | 1322 | frame_info_ptr frame; |
c906108c SS |
1323 | CORE_ADDR pc; |
1324 | struct symbol *func; | |
1325 | struct symtab_and_line sal; | |
4e1c45ea | 1326 | struct thread_info *tp = inferior_thread (); |
5d5658a1 | 1327 | int thread = tp->global_num; |
cfc31633 | 1328 | struct until_next_fsm *sm; |
c5aa993b | 1329 | |
70509625 | 1330 | clear_proceed_status (0); |
29734269 | 1331 | set_step_frame (tp); |
c906108c SS |
1332 | |
1333 | frame = get_current_frame (); | |
1334 | ||
1335 | /* Step until either exited from this function or greater | |
1336 | than the current line (if in symbolic section) or pc (if | |
1777feb0 | 1337 | not). */ |
c906108c | 1338 | |
1c7819ef | 1339 | pc = get_frame_pc (frame); |
c906108c | 1340 | func = find_pc_function (pc); |
c5aa993b | 1341 | |
c906108c SS |
1342 | if (!func) |
1343 | { | |
7cbd4a93 | 1344 | struct bound_minimal_symbol msymbol = lookup_minimal_symbol_by_pc (pc); |
c5aa993b | 1345 | |
03acd4d8 | 1346 | if (msymbol.minsym == nullptr) |
8a3fe4f8 | 1347 | error (_("Execution is not within a known function.")); |
c5aa993b | 1348 | |
4aeddc50 | 1349 | tp->control.step_range_start = msymbol.value_address (); |
7e09a223 YQ |
1350 | /* The upper-bound of step_range is exclusive. In order to make PC |
1351 | within the range, set the step_range_end with PC + 1. */ | |
1352 | tp->control.step_range_end = pc + 1; | |
c906108c SS |
1353 | } |
1354 | else | |
1355 | { | |
1356 | sal = find_pc_line (pc, 0); | |
c5aa993b | 1357 | |
6395b628 | 1358 | tp->control.step_range_start = func->value_block ()->entry_pc (); |
16c381f0 | 1359 | tp->control.step_range_end = sal.end; |
9ab50efc BL |
1360 | |
1361 | /* By setting the step_range_end based on the current pc, we are | |
1362 | assuming that the last line table entry for any given source line | |
1363 | will have is_stmt set to true. This is not necessarily the case, | |
1364 | there may be additional entries for the same source line with | |
1365 | is_stmt set false. Consider the following code: | |
1366 | ||
1367 | for (int i = 0; i < 10; i++) | |
1368 | loop_body (); | |
1369 | ||
1370 | Clang-13, will generate multiple line table entries at the end of | |
1371 | the loop all associated with the 'for' line. The first of these | |
1372 | entries is marked is_stmt true, but the other entries are is_stmt | |
1373 | false. | |
1374 | ||
1375 | If we only use the values in SAL, then our stepping range may not | |
1376 | extend to the end of the loop. The until command will reach the | |
1377 | end of the range, find a non is_stmt instruction, and step to the | |
1378 | next is_stmt instruction. This stopping point, however, will be | |
1379 | inside the loop, which is not what we wanted. | |
1380 | ||
1381 | Instead, we now check any subsequent line table entries to see if | |
1382 | they are for the same line. If they are, and they are marked | |
1383 | is_stmt false, then we extend the end of our stepping range. | |
1384 | ||
1385 | When we finish this process the end of the stepping range will | |
1386 | point either to a line with a different line number, or, will | |
1387 | point at an address for the same line number that is marked as a | |
1388 | statement. */ | |
1389 | ||
1390 | struct symtab_and_line final_sal | |
1391 | = find_pc_line (tp->control.step_range_end, 0); | |
1392 | ||
1393 | while (final_sal.line == sal.line && final_sal.symtab == sal.symtab | |
1394 | && !final_sal.is_stmt) | |
1395 | { | |
1396 | tp->control.step_range_end = final_sal.end; | |
1397 | final_sal = find_pc_line (final_sal.end, 0); | |
1398 | } | |
c906108c | 1399 | } |
c1e36e3e | 1400 | tp->control.may_range_step = 1; |
c5aa993b | 1401 | |
16c381f0 | 1402 | tp->control.step_over_calls = STEP_OVER_ALL; |
c906108c | 1403 | |
186c406b | 1404 | set_longjmp_breakpoint (tp, get_frame_id (frame)); |
5419bdae | 1405 | delete_longjmp_breakpoint_cleanup lj_deleter (thread); |
186c406b | 1406 | |
46e3ed7f | 1407 | sm = new until_next_fsm (command_interp (), tp->global_num); |
573269a8 | 1408 | tp->set_thread_fsm (std::unique_ptr<thread_fsm> (sm)); |
5419bdae | 1409 | lj_deleter.release (); |
fa4cd53f | 1410 | |
cfc31633 | 1411 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT); |
c906108c SS |
1412 | } |
1413 | ||
c5aa993b | 1414 | static void |
0b39b52e | 1415 | until_command (const char *arg, int from_tty) |
c906108c | 1416 | { |
6c4486e6 | 1417 | int async_exec; |
43ff13b4 | 1418 | |
4247603b | 1419 | ERROR_NO_INFERIOR; |
573cda03 | 1420 | ensure_not_tfind_mode (); |
4247603b PA |
1421 | ensure_valid_thread (); |
1422 | ensure_not_running (); | |
573cda03 | 1423 | |
1777feb0 | 1424 | /* Find out whether we must run in the background. */ |
6be9a197 TT |
1425 | gdb::unique_xmalloc_ptr<char> stripped = strip_bg_char (arg, &async_exec); |
1426 | arg = stripped.get (); | |
43ff13b4 | 1427 | |
328d42d8 | 1428 | prepare_execution_command (current_inferior ()->top_target (), async_exec); |
43ff13b4 | 1429 | |
c906108c | 1430 | if (arg) |
ae66c1fc | 1431 | until_break_command (arg, from_tty, 0); |
c906108c SS |
1432 | else |
1433 | until_next_command (from_tty); | |
1434 | } | |
ae66c1fc EZ |
1435 | |
1436 | static void | |
0b39b52e | 1437 | advance_command (const char *arg, int from_tty) |
ae66c1fc | 1438 | { |
6c4486e6 | 1439 | int async_exec; |
ae66c1fc | 1440 | |
4247603b | 1441 | ERROR_NO_INFERIOR; |
573cda03 | 1442 | ensure_not_tfind_mode (); |
4247603b PA |
1443 | ensure_valid_thread (); |
1444 | ensure_not_running (); | |
573cda03 | 1445 | |
03acd4d8 | 1446 | if (arg == nullptr) |
e2e0b3e5 | 1447 | error_no_arg (_("a location")); |
ae66c1fc EZ |
1448 | |
1449 | /* Find out whether we must run in the background. */ | |
6be9a197 TT |
1450 | gdb::unique_xmalloc_ptr<char> stripped = strip_bg_char (arg, &async_exec); |
1451 | arg = stripped.get (); | |
ae66c1fc | 1452 | |
328d42d8 | 1453 | prepare_execution_command (current_inferior ()->top_target (), async_exec); |
ae66c1fc EZ |
1454 | |
1455 | until_break_command (arg, from_tty, 1); | |
1456 | } | |
c906108c | 1457 | \f |
e6b36367 | 1458 | /* See inferior.h. */ |
f941662f | 1459 | |
cc72b2a2 | 1460 | struct value * |
e6b36367 | 1461 | get_return_value (struct symbol *func_symbol, struct value *function) |
11cf8741 | 1462 | { |
215c69dc YQ |
1463 | regcache *stop_regs = get_current_regcache (); |
1464 | struct gdbarch *gdbarch = stop_regs->arch (); | |
44e5158b AC |
1465 | struct value *value; |
1466 | ||
e6b36367 | 1467 | struct type *value_type |
27710edb | 1468 | = check_typedef (func_symbol->type ()->target_type ()); |
78134374 | 1469 | gdb_assert (value_type->code () != TYPE_CODE_VOID); |
11cf8741 | 1470 | |
d0c97917 | 1471 | if (is_nocall_function (check_typedef (function->type ()))) |
0b35f123 LS |
1472 | { |
1473 | warning (_("Function '%s' does not follow the target calling " | |
1474 | "convention, cannot determine its returned value."), | |
1475 | func_symbol->print_name ()); | |
1476 | ||
1477 | return nullptr; | |
1478 | } | |
1479 | ||
92ad9cd9 AC |
1480 | /* FIXME: 2003-09-27: When returning from a nested inferior function |
1481 | call, it's possible (with no help from the architecture vector) | |
1482 | to locate and return/print a "struct return" value. This is just | |
7a9dd1b2 | 1483 | a more complicated case of what is already being done in the |
92ad9cd9 AC |
1484 | inferior function call code. In fact, when inferior function |
1485 | calls are made async, this will likely be made the norm. */ | |
31db7b6c | 1486 | |
4e1d2f58 TT |
1487 | switch (gdbarch_return_value_as_value (gdbarch, function, value_type, |
1488 | nullptr, nullptr, nullptr)) | |
44e5158b | 1489 | { |
750eb019 AC |
1490 | case RETURN_VALUE_REGISTER_CONVENTION: |
1491 | case RETURN_VALUE_ABI_RETURNS_ADDRESS: | |
181fc57c | 1492 | case RETURN_VALUE_ABI_PRESERVES_ADDRESS: |
4e1d2f58 TT |
1493 | gdbarch_return_value_as_value (gdbarch, function, value_type, stop_regs, |
1494 | &value, nullptr); | |
750eb019 AC |
1495 | break; |
1496 | case RETURN_VALUE_STRUCT_CONVENTION: | |
03acd4d8 | 1497 | value = nullptr; |
750eb019 AC |
1498 | break; |
1499 | default: | |
f34652de | 1500 | internal_error (_("bad switch")); |
44e5158b | 1501 | } |
bb472c1e | 1502 | |
cc72b2a2 KP |
1503 | return value; |
1504 | } | |
1505 | ||
243a9253 PA |
1506 | /* The captured function return value/type and its position in the |
1507 | value history. */ | |
cc72b2a2 | 1508 | |
243a9253 | 1509 | struct return_value_info |
cc72b2a2 | 1510 | { |
243a9253 PA |
1511 | /* The captured return value. May be NULL if we weren't able to |
1512 | retrieve it. See get_return_value. */ | |
1513 | struct value *value; | |
1514 | ||
1515 | /* The return type. In some cases, we'll not be able extract the | |
1516 | return value, but we always know the type. */ | |
1517 | struct type *type; | |
1518 | ||
1519 | /* If we captured a value, this is the value history index. */ | |
1520 | int value_history_index; | |
1521 | }; | |
1522 | ||
1523 | /* Helper for print_return_value. */ | |
cc72b2a2 | 1524 | |
243a9253 PA |
1525 | static void |
1526 | print_return_value_1 (struct ui_out *uiout, struct return_value_info *rv) | |
1527 | { | |
03acd4d8 | 1528 | if (rv->value != nullptr) |
31db7b6c MK |
1529 | { |
1530 | /* Print it. */ | |
112e8700 SM |
1531 | uiout->text ("Value returned is "); |
1532 | uiout->field_fmt ("gdb-result-var", "$%d", | |
d7e74731 | 1533 | rv->value_history_index); |
112e8700 | 1534 | uiout->text (" = "); |
d7e74731 | 1535 | |
5ffa6ca3 | 1536 | if (finish_print) |
000439d5 | 1537 | { |
5ffa6ca3 TT |
1538 | struct value_print_options opts; |
1539 | get_user_print_options (&opts); | |
1540 | ||
000439d5 TT |
1541 | string_file stb; |
1542 | value_print (rv->value, &stb, &opts); | |
1543 | uiout->field_stream ("return-value", stb); | |
1544 | } | |
1545 | else | |
7f6aba03 TT |
1546 | uiout->field_string ("return-value", _("<not displayed>"), |
1547 | metadata_style.style ()); | |
112e8700 | 1548 | uiout->text ("\n"); |
31db7b6c MK |
1549 | } |
1550 | else | |
1551 | { | |
2f408ecb | 1552 | std::string type_name = type_to_string (rv->type); |
112e8700 | 1553 | uiout->text ("Value returned has type: "); |
8dd8c8d4 | 1554 | uiout->field_string ("return-type", type_name); |
112e8700 SM |
1555 | uiout->text ("."); |
1556 | uiout->text (" Cannot determine contents\n"); | |
31db7b6c | 1557 | } |
11cf8741 JM |
1558 | } |
1559 | ||
243a9253 PA |
1560 | /* Print the result of a function at the end of a 'finish' command. |
1561 | RV points at an object representing the captured return value/type | |
1562 | and its position in the value history. */ | |
1563 | ||
1564 | void | |
1565 | print_return_value (struct ui_out *uiout, struct return_value_info *rv) | |
1566 | { | |
03acd4d8 | 1567 | if (rv->type == nullptr |
78134374 | 1568 | || check_typedef (rv->type)->code () == TYPE_CODE_VOID) |
243a9253 PA |
1569 | return; |
1570 | ||
a70b8144 | 1571 | try |
243a9253 PA |
1572 | { |
1573 | /* print_return_value_1 can throw an exception in some | |
1574 | circumstances. We need to catch this so that we still | |
1575 | delete the breakpoint. */ | |
1576 | print_return_value_1 (uiout, rv); | |
1577 | } | |
b1ffd112 | 1578 | catch (const gdb_exception_error &ex) |
243a9253 PA |
1579 | { |
1580 | exception_print (gdb_stdout, ex); | |
1581 | } | |
243a9253 PA |
1582 | } |
1583 | ||
1584 | /* Data for the FSM that manages the finish command. */ | |
f941662f | 1585 | |
46e3ed7f | 1586 | struct finish_command_fsm : public thread_fsm |
43ff13b4 | 1587 | { |
243a9253 PA |
1588 | /* The momentary breakpoint set at the function's return address in |
1589 | the caller. */ | |
46e3ed7f | 1590 | breakpoint_up breakpoint; |
243a9253 PA |
1591 | |
1592 | /* The function that we're stepping out of. */ | |
46e3ed7f | 1593 | struct symbol *function = nullptr; |
8a6c4031 | 1594 | |
243a9253 PA |
1595 | /* If the FSM finishes successfully, this stores the function's |
1596 | return value. */ | |
46e3ed7f | 1597 | struct return_value_info return_value_info {}; |
c5aa993b | 1598 | |
a0eda3df CL |
1599 | /* If the current function uses the "struct return convention", |
1600 | this holds the address at which the value being returned will | |
1601 | be stored, or zero if that address could not be determined or | |
1602 | the "struct return convention" is not being used. */ | |
1603 | CORE_ADDR return_buf; | |
1604 | ||
46e3ed7f TT |
1605 | explicit finish_command_fsm (struct interp *cmd_interp) |
1606 | : thread_fsm (cmd_interp) | |
1607 | { | |
1608 | } | |
243a9253 | 1609 | |
46e3ed7f TT |
1610 | bool should_stop (struct thread_info *thread) override; |
1611 | void clean_up (struct thread_info *thread) override; | |
1612 | struct return_value_info *return_value () override; | |
1613 | enum async_reply_reason do_async_reply_reason () override; | |
1614 | }; | |
347bddb7 | 1615 | |
243a9253 PA |
1616 | /* Implementation of the 'should_stop' FSM method for the finish |
1617 | commands. Detects whether the thread stepped out of the function | |
1618 | successfully, and if so, captures the function's return value and | |
1619 | marks the FSM finished. */ | |
1620 | ||
46e3ed7f TT |
1621 | bool |
1622 | finish_command_fsm::should_stop (struct thread_info *tp) | |
243a9253 | 1623 | { |
46e3ed7f | 1624 | struct return_value_info *rv = &return_value_info; |
243a9253 | 1625 | |
03acd4d8 | 1626 | if (function != nullptr |
243a9253 | 1627 | && bpstat_find_breakpoint (tp->control.stop_bpstat, |
03acd4d8 | 1628 | breakpoint.get ()) != nullptr) |
43ff13b4 | 1629 | { |
243a9253 | 1630 | /* We're done. */ |
46e3ed7f | 1631 | set_finished (); |
bfec99b2 | 1632 | |
27710edb | 1633 | rv->type = function->type ()->target_type (); |
03acd4d8 | 1634 | if (rv->type == nullptr) |
f34652de | 1635 | internal_error (_("finish_command: function has no target type")); |
f5871ec0 | 1636 | |
78134374 | 1637 | if (check_typedef (rv->type)->code () != TYPE_CODE_VOID) |
40c549d6 | 1638 | { |
243a9253 PA |
1639 | struct value *func; |
1640 | ||
03acd4d8 | 1641 | func = read_var_value (function, nullptr, get_current_frame ()); |
a0eda3df CL |
1642 | |
1643 | if (return_buf != 0) | |
1644 | /* Retrieve return value from the buffer where it was saved. */ | |
1645 | rv->value = value_at (rv->type, return_buf); | |
1646 | else | |
1647 | rv->value = get_return_value (function, func); | |
1648 | ||
03acd4d8 | 1649 | if (rv->value != nullptr) |
0d0f488e | 1650 | rv->value_history_index = rv->value->record_latest (); |
243a9253 PA |
1651 | } |
1652 | } | |
1653 | else if (tp->control.stop_step) | |
1654 | { | |
1655 | /* Finishing from an inline frame, or reverse finishing. In | |
1656 | either case, there's no way to retrieve the return value. */ | |
46e3ed7f | 1657 | set_finished (); |
243a9253 | 1658 | } |
fa4cd53f | 1659 | |
46e3ed7f | 1660 | return true; |
243a9253 | 1661 | } |
40c549d6 | 1662 | |
243a9253 PA |
1663 | /* Implementation of the 'clean_up' FSM method for the finish |
1664 | commands. */ | |
fa4cd53f | 1665 | |
46e3ed7f TT |
1666 | void |
1667 | finish_command_fsm::clean_up (struct thread_info *thread) | |
243a9253 | 1668 | { |
46e3ed7f | 1669 | breakpoint.reset (); |
8980e177 | 1670 | delete_longjmp_breakpoint (thread->global_num); |
243a9253 | 1671 | } |
f941662f | 1672 | |
243a9253 PA |
1673 | /* Implementation of the 'return_value' FSM method for the finish |
1674 | commands. */ | |
1675 | ||
46e3ed7f TT |
1676 | struct return_value_info * |
1677 | finish_command_fsm::return_value () | |
243a9253 | 1678 | { |
46e3ed7f | 1679 | return &return_value_info; |
43ff13b4 JM |
1680 | } |
1681 | ||
243a9253 PA |
1682 | /* Implementation of the 'async_reply_reason' FSM method for the |
1683 | finish commands. */ | |
1684 | ||
46e3ed7f TT |
1685 | enum async_reply_reason |
1686 | finish_command_fsm::do_async_reply_reason () | |
604ead4a | 1687 | { |
243a9253 PA |
1688 | if (execution_direction == EXEC_REVERSE) |
1689 | return EXEC_ASYNC_END_STEPPING_RANGE; | |
1690 | else | |
1691 | return EXEC_ASYNC_FUNCTION_FINISHED; | |
604ead4a PA |
1692 | } |
1693 | ||
b2175913 MS |
1694 | /* finish_backward -- helper function for finish_command. */ |
1695 | ||
1696 | static void | |
243a9253 | 1697 | finish_backward (struct finish_command_fsm *sm) |
b2175913 MS |
1698 | { |
1699 | struct symtab_and_line sal; | |
1700 | struct thread_info *tp = inferior_thread (); | |
1c7819ef | 1701 | CORE_ADDR pc; |
b2175913 | 1702 | CORE_ADDR func_addr; |
70ea5a46 CL |
1703 | CORE_ADDR alt_entry_point; |
1704 | CORE_ADDR entry_point; | |
2a8339b7 CL |
1705 | frame_info_ptr frame = get_selected_frame (nullptr); |
1706 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
b2175913 | 1707 | |
1c7819ef PA |
1708 | pc = get_frame_pc (get_current_frame ()); |
1709 | ||
03acd4d8 | 1710 | if (find_pc_partial_function (pc, nullptr, &func_addr, nullptr) == 0) |
1f267ae3 | 1711 | error (_("Cannot find bounds of current function")); |
b2175913 MS |
1712 | |
1713 | sal = find_pc_line (func_addr, 0); | |
70ea5a46 CL |
1714 | alt_entry_point = sal.pc; |
1715 | entry_point = alt_entry_point; | |
b2175913 | 1716 | |
2a8339b7 CL |
1717 | if (gdbarch_skip_entrypoint_p (gdbarch)) |
1718 | /* Some architectures, like PowerPC use local and global entry points. | |
1719 | There is only one Entry Point (GEP = LEP) for other architectures. | |
1720 | The GEP is an alternate entry point. The LEP is the normal entry point. | |
1721 | The value of entry_point was initialized to the alternate entry point | |
1722 | (GEP). It will be adjusted to the normal entry point if the function | |
1723 | has two entry points. */ | |
1724 | entry_point = gdbarch_skip_entrypoint (gdbarch, sal.pc); | |
1725 | ||
b986eec5 CL |
1726 | tp->control.proceed_to_finish = 1; |
1727 | /* Special case: if we're sitting at the function entry point, | |
1728 | then all we need to do is take a reverse singlestep. We | |
1729 | don't need to set a breakpoint, and indeed it would do us | |
1730 | no good to do so. | |
1731 | ||
1732 | Note that this can only happen at frame #0, since there's | |
1733 | no way that a function up the stack can have a return address | |
1734 | that's equal to its entry point. */ | |
b2175913 | 1735 | |
2a8339b7 | 1736 | if ((pc < alt_entry_point) || (pc > entry_point)) |
b2175913 | 1737 | { |
2a8339b7 CL |
1738 | /* We are in the body of the function. Set a breakpoint to go back to |
1739 | the normal entry point. */ | |
15d2b36c | 1740 | symtab_and_line sr_sal; |
2a8339b7 | 1741 | sr_sal.pc = entry_point; |
15d2b36c CL |
1742 | sr_sal.pspace = get_frame_program_space (frame); |
1743 | insert_step_resume_breakpoint_at_sal (gdbarch, | |
1744 | sr_sal, null_frame_id); | |
b986eec5 CL |
1745 | |
1746 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT); | |
15d2b36c CL |
1747 | } |
1748 | else | |
b2175913 | 1749 | { |
2a8339b7 CL |
1750 | /* We are either at one of the entry points or between the entry points. |
1751 | If we are not at the alt_entry point, go back to the alt_entry_point | |
1752 | If we at the normal entry point step back one instruction, when we | |
1753 | stop we will determine if we entered via the entry point or the | |
1754 | alternate entry point. If we are at the alternate entry point, | |
1755 | single step back to the function call. */ | |
b986eec5 CL |
1756 | tp->control.step_range_start = tp->control.step_range_end = 1; |
1757 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT); | |
b2175913 | 1758 | } |
b2175913 MS |
1759 | } |
1760 | ||
243a9253 PA |
1761 | /* finish_forward -- helper function for finish_command. FRAME is the |
1762 | frame that called the function we're about to step out of. */ | |
b2175913 MS |
1763 | |
1764 | static void | |
bd2b40ac | 1765 | finish_forward (struct finish_command_fsm *sm, frame_info_ptr frame) |
b2175913 | 1766 | { |
def166f6 | 1767 | struct frame_id frame_id = get_frame_id (frame); |
a6d9a66e | 1768 | struct gdbarch *gdbarch = get_frame_arch (frame); |
b2175913 MS |
1769 | struct symtab_and_line sal; |
1770 | struct thread_info *tp = inferior_thread (); | |
b2175913 MS |
1771 | |
1772 | sal = find_pc_line (get_frame_pc (frame), 0); | |
1773 | sal.pc = get_frame_pc (frame); | |
1774 | ||
243a9253 PA |
1775 | sm->breakpoint = set_momentary_breakpoint (gdbarch, sal, |
1776 | get_stack_frame_id (frame), | |
46e3ed7f | 1777 | bp_finish); |
b2175913 | 1778 | |
c70a6932 | 1779 | /* set_momentary_breakpoint invalidates FRAME. */ |
03acd4d8 | 1780 | frame = nullptr; |
c70a6932 | 1781 | |
def166f6 | 1782 | set_longjmp_breakpoint (tp, frame_id); |
186c406b | 1783 | |
b986eec5 CL |
1784 | /* We want to print return value, please... */ |
1785 | tp->control.proceed_to_finish = 1; | |
1786 | ||
243a9253 | 1787 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT); |
b2175913 MS |
1788 | } |
1789 | ||
e3b5daf9 MM |
1790 | /* Skip frames for "finish". */ |
1791 | ||
bd2b40ac TT |
1792 | static frame_info_ptr |
1793 | skip_finish_frames (frame_info_ptr frame) | |
e3b5daf9 | 1794 | { |
bd2b40ac | 1795 | frame_info_ptr start; |
e3b5daf9 MM |
1796 | |
1797 | do | |
1798 | { | |
1799 | start = frame; | |
1800 | ||
1801 | frame = skip_tailcall_frames (frame); | |
03acd4d8 | 1802 | if (frame == nullptr) |
e3b5daf9 MM |
1803 | break; |
1804 | ||
1805 | frame = skip_unwritable_frames (frame); | |
03acd4d8 | 1806 | if (frame == nullptr) |
e3b5daf9 MM |
1807 | break; |
1808 | } | |
1809 | while (start != frame); | |
1810 | ||
1811 | return frame; | |
1812 | } | |
1813 | ||
f941662f MK |
1814 | /* "finish": Set a temporary breakpoint at the place the selected |
1815 | frame will return to, then continue. */ | |
c906108c SS |
1816 | |
1817 | static void | |
0b39b52e | 1818 | finish_command (const char *arg, int from_tty) |
c906108c | 1819 | { |
bd2b40ac | 1820 | frame_info_ptr frame; |
6c4486e6 | 1821 | int async_exec; |
243a9253 PA |
1822 | struct finish_command_fsm *sm; |
1823 | struct thread_info *tp; | |
43ff13b4 | 1824 | |
4247603b | 1825 | ERROR_NO_INFERIOR; |
573cda03 | 1826 | ensure_not_tfind_mode (); |
4247603b PA |
1827 | ensure_valid_thread (); |
1828 | ensure_not_running (); | |
573cda03 | 1829 | |
f941662f | 1830 | /* Find out whether we must run in the background. */ |
6be9a197 TT |
1831 | gdb::unique_xmalloc_ptr<char> stripped = strip_bg_char (arg, &async_exec); |
1832 | arg = stripped.get (); | |
43ff13b4 | 1833 | |
328d42d8 | 1834 | prepare_execution_command (current_inferior ()->top_target (), async_exec); |
c906108c SS |
1835 | |
1836 | if (arg) | |
8a3fe4f8 | 1837 | error (_("The \"finish\" command does not take any arguments.")); |
c906108c | 1838 | |
206415a3 | 1839 | frame = get_prev_frame (get_selected_frame (_("No selected frame."))); |
c906108c | 1840 | if (frame == 0) |
8a3fe4f8 | 1841 | error (_("\"finish\" not meaningful in the outermost frame.")); |
c906108c | 1842 | |
70509625 | 1843 | clear_proceed_status (0); |
c906108c | 1844 | |
243a9253 PA |
1845 | tp = inferior_thread (); |
1846 | ||
46e3ed7f | 1847 | sm = new finish_command_fsm (command_interp ()); |
243a9253 | 1848 | |
573269a8 | 1849 | tp->set_thread_fsm (std::unique_ptr<thread_fsm> (sm)); |
243a9253 | 1850 | |
edb3359d | 1851 | /* Finishing from an inline frame is completely different. We don't |
243a9253 | 1852 | try to show the "return value" - no way to locate it. */ |
edb3359d DJ |
1853 | if (get_frame_type (get_selected_frame (_("No selected frame."))) |
1854 | == INLINE_FRAME) | |
1855 | { | |
1856 | /* Claim we are stepping in the calling frame. An empty step | |
1857 | range means that we will stop once we aren't in a function | |
1858 | called by that frame. We don't use the magic "1" value for | |
1859 | step_range_end, because then infrun will think this is nexti, | |
1860 | and not step over the rest of this inlined function call. */ | |
29734269 | 1861 | set_step_info (tp, frame, {}); |
16c381f0 JK |
1862 | tp->control.step_range_start = get_frame_pc (frame); |
1863 | tp->control.step_range_end = tp->control.step_range_start; | |
1864 | tp->control.step_over_calls = STEP_OVER_ALL; | |
edb3359d DJ |
1865 | |
1866 | /* Print info on the selected frame, including level number but not | |
1867 | source. */ | |
1868 | if (from_tty) | |
1869 | { | |
6cb06a8c | 1870 | gdb_printf (_("Run till exit from ")); |
03acd4d8 | 1871 | print_stack_frame (get_selected_frame (nullptr), 1, LOCATION, 0); |
edb3359d DJ |
1872 | } |
1873 | ||
64ce06e4 | 1874 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT); |
edb3359d DJ |
1875 | return; |
1876 | } | |
1877 | ||
c906108c | 1878 | /* Find the function we will return from. */ |
03acd4d8 | 1879 | frame_info_ptr callee_frame = get_selected_frame (nullptr); |
a0eda3df | 1880 | sm->function = find_pc_function (get_frame_pc (callee_frame)); |
d2bbd19d | 1881 | sm->return_buf = 0; /* Initialize buffer address is not available. */ |
a0eda3df CL |
1882 | |
1883 | /* Determine the return convention. If it is RETURN_VALUE_STRUCT_CONVENTION, | |
1884 | attempt to determine the address of the return buffer. */ | |
03acd4d8 | 1885 | if (sm->function != nullptr) |
d2bbd19d CL |
1886 | { |
1887 | enum return_value_convention return_value; | |
1888 | struct gdbarch *gdbarch = get_frame_arch (callee_frame); | |
a0eda3df | 1889 | |
d2bbd19d CL |
1890 | struct type * val_type |
1891 | = check_typedef (sm->function->type ()->target_type ()); | |
a0eda3df | 1892 | |
4e1d2f58 TT |
1893 | return_value |
1894 | = gdbarch_return_value_as_value (gdbarch, | |
1895 | read_var_value (sm->function, nullptr, | |
1896 | callee_frame), | |
1897 | val_type, nullptr, nullptr, nullptr); | |
a0eda3df | 1898 | |
d2bbd19d CL |
1899 | if (return_value == RETURN_VALUE_STRUCT_CONVENTION |
1900 | && val_type->code () != TYPE_CODE_VOID) | |
1901 | sm->return_buf = gdbarch_get_return_buf_addr (gdbarch, val_type, | |
1902 | callee_frame); | |
1903 | } | |
c906108c | 1904 | |
f941662f MK |
1905 | /* Print info on the selected frame, including level number but not |
1906 | source. */ | |
c906108c SS |
1907 | if (from_tty) |
1908 | { | |
b2175913 | 1909 | if (execution_direction == EXEC_REVERSE) |
6cb06a8c | 1910 | gdb_printf (_("Run back to call of ")); |
b2175913 | 1911 | else |
743649fd | 1912 | { |
03acd4d8 | 1913 | if (sm->function != nullptr && TYPE_NO_RETURN (sm->function->type ()) |
743649fd MW |
1914 | && !query (_("warning: Function %s does not return normally.\n" |
1915 | "Try to finish anyway? "), | |
987012b8 | 1916 | sm->function->print_name ())) |
743649fd | 1917 | error (_("Not confirmed.")); |
6cb06a8c | 1918 | gdb_printf (_("Run till exit from ")); |
743649fd | 1919 | } |
b2175913 | 1920 | |
a0eda3df | 1921 | print_stack_frame (callee_frame, 1, LOCATION, 0); |
c906108c SS |
1922 | } |
1923 | ||
b2175913 | 1924 | if (execution_direction == EXEC_REVERSE) |
243a9253 | 1925 | finish_backward (sm); |
b2175913 | 1926 | else |
33b4777c | 1927 | { |
e3b5daf9 | 1928 | frame = skip_finish_frames (frame); |
7eb89530 | 1929 | |
03acd4d8 | 1930 | if (frame == nullptr) |
33b4777c MM |
1931 | error (_("Cannot find the caller frame.")); |
1932 | ||
1933 | finish_forward (sm, frame); | |
1934 | } | |
c906108c SS |
1935 | } |
1936 | \f | |
f941662f | 1937 | |
c906108c | 1938 | static void |
1d12d88f | 1939 | info_program_command (const char *args, int from_tty) |
c906108c | 1940 | { |
6bf09ec0 | 1941 | scoped_restore_current_thread restore_thread; |
c5aa993b | 1942 | |
6bf09ec0 PA |
1943 | thread_info *tp; |
1944 | ||
1945 | /* In non-stop, since every thread is controlled individually, we'll | |
1946 | show execution info about the current thread. In all-stop, we'll | |
1947 | show execution info about the last stop. */ | |
c906108c | 1948 | |
347bddb7 | 1949 | if (non_stop) |
5b6d1e4f | 1950 | { |
6bf09ec0 PA |
1951 | if (!target_has_execution ()) |
1952 | { | |
1953 | gdb_printf (_("The program being debugged is not being run.\n")); | |
1954 | return; | |
1955 | } | |
1956 | ||
1957 | if (inferior_ptid == null_ptid) | |
1958 | error (_("No selected thread.")); | |
1959 | ||
1960 | tp = inferior_thread (); | |
1961 | ||
1962 | gdb_printf (_("Selected thread %s (%s).\n"), | |
1963 | print_thread_id (tp), | |
1964 | target_pid_to_str (tp->ptid).c_str ()); | |
1965 | ||
1966 | if (tp->state == THREAD_EXITED) | |
1967 | { | |
1968 | gdb_printf (_("Selected thread has exited.\n")); | |
1969 | return; | |
1970 | } | |
1971 | else if (tp->state == THREAD_RUNNING) | |
1972 | { | |
1973 | gdb_printf (_("Selected thread is running.\n")); | |
1974 | return; | |
1975 | } | |
5b6d1e4f | 1976 | } |
347bddb7 | 1977 | else |
6bf09ec0 PA |
1978 | { |
1979 | tp = get_previous_thread (); | |
1980 | ||
1981 | if (tp == nullptr) | |
1982 | { | |
1983 | gdb_printf (_("The program being debugged is not being run.\n")); | |
1984 | return; | |
1985 | } | |
347bddb7 | 1986 | |
6bf09ec0 | 1987 | switch_to_thread (tp); |
00431a78 | 1988 | |
6bf09ec0 PA |
1989 | gdb_printf (_("Last stopped for thread %s (%s).\n"), |
1990 | print_thread_id (tp), | |
1991 | target_pid_to_str (tp->ptid).c_str ()); | |
00431a78 | 1992 | |
6bf09ec0 PA |
1993 | if (tp->state == THREAD_EXITED) |
1994 | { | |
1995 | gdb_printf (_("Thread has since exited.\n")); | |
1996 | return; | |
1997 | } | |
1998 | ||
1999 | if (tp->state == THREAD_RUNNING) | |
2000 | { | |
2001 | gdb_printf (_("Thread is now running.\n")); | |
2002 | return; | |
2003 | } | |
2004 | } | |
347bddb7 | 2005 | |
6bf09ec0 PA |
2006 | int num; |
2007 | bpstat *bs = tp->control.stop_bpstat; | |
2008 | int stat = bpstat_num (&bs, &num); | |
347bddb7 | 2009 | |
c906108c | 2010 | target_files_info (); |
6cb06a8c TT |
2011 | gdb_printf (_("Program stopped at %s.\n"), |
2012 | paddress (target_gdbarch (), tp->stop_pc ())); | |
16c381f0 | 2013 | if (tp->control.stop_step) |
6cb06a8c | 2014 | gdb_printf (_("It stopped after being stepped.\n")); |
8671a17b | 2015 | else if (stat != 0) |
c906108c SS |
2016 | { |
2017 | /* There may be several breakpoints in the same place, so this | |
dda83cd7 | 2018 | isn't as strange as it seems. */ |
8671a17b | 2019 | while (stat != 0) |
c906108c | 2020 | { |
8671a17b | 2021 | if (stat < 0) |
c906108c | 2022 | { |
6cb06a8c TT |
2023 | gdb_printf (_("It stopped at a breakpoint " |
2024 | "that has since been deleted.\n")); | |
c906108c SS |
2025 | } |
2026 | else | |
6cb06a8c | 2027 | gdb_printf (_("It stopped at breakpoint %d.\n"), num); |
8671a17b | 2028 | stat = bpstat_num (&bs, &num); |
c906108c SS |
2029 | } |
2030 | } | |
1edb66d8 | 2031 | else if (tp->stop_signal () != GDB_SIGNAL_0) |
c906108c | 2032 | { |
6cb06a8c TT |
2033 | gdb_printf (_("It stopped with signal %s, %s.\n"), |
2034 | gdb_signal_to_name (tp->stop_signal ()), | |
2035 | gdb_signal_to_string (tp->stop_signal ())); | |
c906108c SS |
2036 | } |
2037 | ||
0d41ba00 | 2038 | if (from_tty) |
c906108c | 2039 | { |
6cb06a8c TT |
2040 | gdb_printf (_("Type \"info stack\" or \"info " |
2041 | "registers\" for more information.\n")); | |
c906108c SS |
2042 | } |
2043 | } | |
2044 | \f | |
2045 | static void | |
69f476a3 | 2046 | environment_info (const char *var, int from_tty) |
c906108c SS |
2047 | { |
2048 | if (var) | |
2049 | { | |
9a6c7d9c | 2050 | const char *val = current_inferior ()->environment.get (var); |
abbb1732 | 2051 | |
c906108c SS |
2052 | if (val) |
2053 | { | |
0426ad51 TT |
2054 | gdb_puts (var); |
2055 | gdb_puts (" = "); | |
2056 | gdb_puts (val); | |
2057 | gdb_puts ("\n"); | |
c906108c SS |
2058 | } |
2059 | else | |
2060 | { | |
0426ad51 TT |
2061 | gdb_puts ("Environment variable \""); |
2062 | gdb_puts (var); | |
2063 | gdb_puts ("\" not defined.\n"); | |
c906108c SS |
2064 | } |
2065 | } | |
2066 | else | |
2067 | { | |
9a6c7d9c | 2068 | char **envp = current_inferior ()->environment.envp (); |
abbb1732 | 2069 | |
03acd4d8 | 2070 | for (int idx = 0; envp[idx] != nullptr; ++idx) |
c906108c | 2071 | { |
0426ad51 TT |
2072 | gdb_puts (envp[idx]); |
2073 | gdb_puts ("\n"); | |
c906108c SS |
2074 | } |
2075 | } | |
2076 | } | |
2077 | ||
2078 | static void | |
69f476a3 | 2079 | set_environment_command (const char *arg, int from_tty) |
c906108c | 2080 | { |
69f476a3 | 2081 | const char *p, *val; |
c906108c SS |
2082 | int nullset = 0; |
2083 | ||
2084 | if (arg == 0) | |
e2e0b3e5 | 2085 | error_no_arg (_("environment variable and value")); |
c906108c | 2086 | |
85102364 | 2087 | /* Find separation between variable name and value. */ |
c906108c SS |
2088 | p = (char *) strchr (arg, '='); |
2089 | val = (char *) strchr (arg, ' '); | |
2090 | ||
2091 | if (p != 0 && val != 0) | |
2092 | { | |
2093 | /* We have both a space and an equals. If the space is before the | |
dda83cd7 SM |
2094 | equals, walk forward over the spaces til we see a nonspace |
2095 | (possibly the equals). */ | |
c906108c SS |
2096 | if (p > val) |
2097 | while (*val == ' ') | |
2098 | val++; | |
2099 | ||
2100 | /* Now if the = is after the char following the spaces, | |
dda83cd7 | 2101 | take the char following the spaces. */ |
c906108c SS |
2102 | if (p > val) |
2103 | p = val - 1; | |
2104 | } | |
2105 | else if (val != 0 && p == 0) | |
2106 | p = val; | |
2107 | ||
2108 | if (p == arg) | |
e2e0b3e5 | 2109 | error_no_arg (_("environment variable to set")); |
c906108c SS |
2110 | |
2111 | if (p == 0 || p[1] == 0) | |
2112 | { | |
2113 | nullset = 1; | |
2114 | if (p == 0) | |
1777feb0 | 2115 | p = arg + strlen (arg); /* So that savestring below will work. */ |
c906108c SS |
2116 | } |
2117 | else | |
2118 | { | |
1777feb0 | 2119 | /* Not setting variable value to null. */ |
c906108c SS |
2120 | val = p + 1; |
2121 | while (*val == ' ' || *val == '\t') | |
2122 | val++; | |
2123 | } | |
2124 | ||
c5aa993b JM |
2125 | while (p != arg && (p[-1] == ' ' || p[-1] == '\t')) |
2126 | p--; | |
c906108c | 2127 | |
69f476a3 | 2128 | std::string var (arg, p - arg); |
c906108c SS |
2129 | if (nullset) |
2130 | { | |
6cb06a8c TT |
2131 | gdb_printf (_("Setting environment variable " |
2132 | "\"%s\" to null value.\n"), | |
2133 | var.c_str ()); | |
69f476a3 | 2134 | current_inferior ()->environment.set (var.c_str (), ""); |
c906108c SS |
2135 | } |
2136 | else | |
69f476a3 | 2137 | current_inferior ()->environment.set (var.c_str (), val); |
c906108c SS |
2138 | } |
2139 | ||
2140 | static void | |
69f476a3 | 2141 | unset_environment_command (const char *var, int from_tty) |
c906108c SS |
2142 | { |
2143 | if (var == 0) | |
2144 | { | |
2145 | /* If there is no argument, delete all environment variables. | |
dda83cd7 | 2146 | Ask for confirmation if reading from the terminal. */ |
e2e0b3e5 | 2147 | if (!from_tty || query (_("Delete all environment variables? "))) |
206726fb | 2148 | current_inferior ()->environment.clear (); |
c906108c SS |
2149 | } |
2150 | else | |
9a6c7d9c | 2151 | current_inferior ()->environment.unset (var); |
c906108c SS |
2152 | } |
2153 | ||
1777feb0 | 2154 | /* Handle the execution path (PATH variable). */ |
c906108c SS |
2155 | |
2156 | static const char path_var_name[] = "PATH"; | |
2157 | ||
c906108c | 2158 | static void |
69f476a3 | 2159 | path_info (const char *args, int from_tty) |
c906108c | 2160 | { |
0426ad51 TT |
2161 | gdb_puts ("Executable and object file path: "); |
2162 | gdb_puts (current_inferior ()->environment.get (path_var_name)); | |
2163 | gdb_puts ("\n"); | |
c906108c SS |
2164 | } |
2165 | ||
2166 | /* Add zero or more directories to the front of the execution path. */ | |
2167 | ||
2168 | static void | |
0b39b52e | 2169 | path_command (const char *dirname, int from_tty) |
c906108c | 2170 | { |
a121b7c1 | 2171 | const char *env; |
abbb1732 | 2172 | |
c906108c | 2173 | dont_repeat (); |
9a6c7d9c | 2174 | env = current_inferior ()->environment.get (path_var_name); |
1777feb0 | 2175 | /* Can be null if path is not set. */ |
c906108c SS |
2176 | if (!env) |
2177 | env = ""; | |
e0700ba4 SM |
2178 | std::string exec_path = env; |
2179 | mod_path (dirname, exec_path); | |
2180 | current_inferior ()->environment.set (path_var_name, exec_path.c_str ()); | |
c906108c | 2181 | if (from_tty) |
03acd4d8 | 2182 | path_info (nullptr, from_tty); |
c906108c | 2183 | } |
c906108c | 2184 | \f |
c5aa993b | 2185 | |
e813d34a RK |
2186 | static void |
2187 | pad_to_column (string_file &stream, int col) | |
2188 | { | |
2189 | /* At least one space must be printed to separate columns. */ | |
2190 | stream.putc (' '); | |
2191 | const int size = stream.size (); | |
2192 | if (size < col) | |
2193 | stream.puts (n_spaces (col - size)); | |
2194 | } | |
2195 | ||
1292279a PA |
2196 | /* Print out the register NAME with value VAL, to FILE, in the default |
2197 | fashion. */ | |
2198 | ||
2199 | static void | |
2200 | default_print_one_register_info (struct ui_file *file, | |
2201 | const char *name, | |
2202 | struct value *val) | |
2203 | { | |
d0c97917 | 2204 | struct type *regtype = val->type (); |
f69d9aef | 2205 | int print_raw_format; |
e813d34a RK |
2206 | string_file format_stream; |
2207 | enum tab_stops | |
2208 | { | |
2209 | value_column_1 = 15, | |
2210 | /* Give enough room for "0x", 16 hex digits and two spaces in | |
dda83cd7 | 2211 | preceding column. */ |
e813d34a RK |
2212 | value_column_2 = value_column_1 + 2 + 16 + 2, |
2213 | }; | |
1292279a | 2214 | |
e813d34a RK |
2215 | format_stream.puts (name); |
2216 | pad_to_column (format_stream, value_column_1); | |
1292279a | 2217 | |
d00664db TT |
2218 | print_raw_format = (val->entirely_available () |
2219 | && !val->optimized_out ()); | |
1292279a PA |
2220 | |
2221 | /* If virtual format is floating, print it that way, and in raw | |
2222 | hex. */ | |
78134374 SM |
2223 | if (regtype->code () == TYPE_CODE_FLT |
2224 | || regtype->code () == TYPE_CODE_DECFLOAT) | |
1292279a | 2225 | { |
1292279a | 2226 | struct value_print_options opts; |
efaf1ae0 | 2227 | const gdb_byte *valaddr = val->contents_for_printing ().data (); |
34877895 | 2228 | enum bfd_endian byte_order = type_byte_order (regtype); |
1292279a PA |
2229 | |
2230 | get_user_print_options (&opts); | |
dad6b350 | 2231 | opts.deref_ref = true; |
1292279a | 2232 | |
3444c526 | 2233 | common_val_print (val, &format_stream, 0, &opts, current_language); |
1292279a | 2234 | |
f69d9aef AB |
2235 | if (print_raw_format) |
2236 | { | |
e813d34a RK |
2237 | pad_to_column (format_stream, value_column_2); |
2238 | format_stream.puts ("(raw "); | |
df86565b | 2239 | print_hex_chars (&format_stream, valaddr, regtype->length (), |
e813d34a RK |
2240 | byte_order, true); |
2241 | format_stream.putc (')'); | |
f69d9aef | 2242 | } |
1292279a PA |
2243 | } |
2244 | else | |
2245 | { | |
2246 | struct value_print_options opts; | |
2247 | ||
2248 | /* Print the register in hex. */ | |
2249 | get_formatted_print_options (&opts, 'x'); | |
dad6b350 | 2250 | opts.deref_ref = true; |
3444c526 | 2251 | common_val_print (val, &format_stream, 0, &opts, current_language); |
1292279a PA |
2252 | /* If not a vector register, print it also according to its |
2253 | natural format. */ | |
bd63c870 | 2254 | if (print_raw_format && regtype->is_vector () == 0) |
1292279a | 2255 | { |
e813d34a | 2256 | pad_to_column (format_stream, value_column_2); |
1292279a | 2257 | get_user_print_options (&opts); |
dad6b350 | 2258 | opts.deref_ref = true; |
3444c526 | 2259 | common_val_print (val, &format_stream, 0, &opts, current_language); |
1292279a PA |
2260 | } |
2261 | } | |
2262 | ||
0426ad51 | 2263 | gdb_puts (format_stream.c_str (), file); |
6cb06a8c | 2264 | gdb_printf (file, "\n"); |
1292279a PA |
2265 | } |
2266 | ||
1777feb0 | 2267 | /* Print out the machine register regnum. If regnum is -1, print all |
0ab7a791 AC |
2268 | registers (print_all == 1) or all non-float and non-vector |
2269 | registers (print_all == 0). | |
c906108c SS |
2270 | |
2271 | For most machines, having all_registers_info() print the | |
0ab7a791 AC |
2272 | register(s) one per line is good enough. If a different format is |
2273 | required, (eg, for MIPS or Pyramid 90x, which both have lots of | |
2274 | regs), or there is an existing convention for showing all the | |
2275 | registers, define the architecture method PRINT_REGISTERS_INFO to | |
2276 | provide that format. */ | |
c906108c | 2277 | |
666e11c5 | 2278 | void |
0ab7a791 AC |
2279 | default_print_registers_info (struct gdbarch *gdbarch, |
2280 | struct ui_file *file, | |
bd2b40ac | 2281 | frame_info_ptr frame, |
0ab7a791 | 2282 | int regnum, int print_all) |
c906108c | 2283 | { |
0ab7a791 | 2284 | int i; |
f6efe3f8 | 2285 | const int numregs = gdbarch_num_cooked_regs (gdbarch); |
0ab7a791 | 2286 | |
c906108c SS |
2287 | for (i = 0; i < numregs; i++) |
2288 | { | |
4782dc19 | 2289 | /* Decide between printing all regs, non-float / vector regs, or |
dda83cd7 | 2290 | specific reg. */ |
c5aa993b JM |
2291 | if (regnum == -1) |
2292 | { | |
f9418c0f | 2293 | if (print_all) |
4782dc19 | 2294 | { |
f9418c0f | 2295 | if (!gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) |
4782dc19 | 2296 | continue; |
f9418c0f AC |
2297 | } |
2298 | else | |
2299 | { | |
2300 | if (!gdbarch_register_reggroup_p (gdbarch, i, general_reggroup)) | |
4782dc19 AC |
2301 | continue; |
2302 | } | |
c5aa993b JM |
2303 | } |
2304 | else | |
2305 | { | |
2306 | if (i != regnum) | |
2307 | continue; | |
2308 | } | |
c906108c SS |
2309 | |
2310 | /* If the register name is empty, it is undefined for this | |
dda83cd7 | 2311 | processor, so don't display anything. */ |
637b2f86 | 2312 | if (*(gdbarch_register_name (gdbarch, i)) == '\0') |
c906108c SS |
2313 | continue; |
2314 | ||
1292279a PA |
2315 | default_print_one_register_info (file, |
2316 | gdbarch_register_name (gdbarch, i), | |
901461f8 | 2317 | value_of_register (i, frame)); |
c906108c SS |
2318 | } |
2319 | } | |
c906108c | 2320 | |
c906108c | 2321 | void |
1d12d88f | 2322 | registers_info (const char *addr_exp, int fpregs) |
c906108c | 2323 | { |
bd2b40ac | 2324 | frame_info_ptr frame; |
a4bd449d | 2325 | struct gdbarch *gdbarch; |
c906108c | 2326 | |
9dccd06e | 2327 | if (!target_has_registers ()) |
8a3fe4f8 | 2328 | error (_("The program has no registers now.")); |
03acd4d8 | 2329 | frame = get_selected_frame (nullptr); |
a4bd449d | 2330 | gdbarch = get_frame_arch (frame); |
c906108c SS |
2331 | |
2332 | if (!addr_exp) | |
2333 | { | |
a4bd449d | 2334 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 2335 | frame, -1, fpregs); |
c906108c SS |
2336 | return; |
2337 | } | |
2338 | ||
f9418c0f | 2339 | while (*addr_exp != '\0') |
c5aa993b | 2340 | { |
1d12d88f | 2341 | const char *start; |
f9418c0f | 2342 | const char *end; |
c906108c | 2343 | |
529480d0 KS |
2344 | /* Skip leading white space. */ |
2345 | addr_exp = skip_spaces (addr_exp); | |
c906108c | 2346 | |
f9418c0f | 2347 | /* Discard any leading ``$''. Check that there is something |
dda83cd7 | 2348 | resembling a register following it. */ |
f9418c0f AC |
2349 | if (addr_exp[0] == '$') |
2350 | addr_exp++; | |
2351 | if (isspace ((*addr_exp)) || (*addr_exp) == '\0') | |
8a3fe4f8 | 2352 | error (_("Missing register name")); |
c906108c | 2353 | |
f9418c0f AC |
2354 | /* Find the start/end of this register name/num/group. */ |
2355 | start = addr_exp; | |
2356 | while ((*addr_exp) != '\0' && !isspace ((*addr_exp))) | |
2357 | addr_exp++; | |
2358 | end = addr_exp; | |
ad842144 | 2359 | |
f9418c0f AC |
2360 | /* Figure out what we've found and display it. */ |
2361 | ||
2362 | /* A register name? */ | |
2363 | { | |
029a67e4 | 2364 | int regnum = user_reg_map_name_to_regnum (gdbarch, start, end - start); |
abbb1732 | 2365 | |
f9418c0f AC |
2366 | if (regnum >= 0) |
2367 | { | |
ad842144 MR |
2368 | /* User registers lie completely outside of the range of |
2369 | normal registers. Catch them early so that the target | |
2370 | never sees them. */ | |
f6efe3f8 | 2371 | if (regnum >= gdbarch_num_cooked_regs (gdbarch)) |
ad842144 | 2372 | { |
1292279a PA |
2373 | struct value *regval = value_of_user_reg (regnum, frame); |
2374 | const char *regname = user_reg_map_regnum_to_name (gdbarch, | |
2375 | regnum); | |
2376 | ||
2377 | /* Print in the same fashion | |
2378 | gdbarch_print_registers_info's default | |
2379 | implementation prints. */ | |
2380 | default_print_one_register_info (gdb_stdout, | |
2381 | regname, | |
2382 | regval); | |
ad842144 MR |
2383 | } |
2384 | else | |
2385 | gdbarch_print_registers_info (gdbarch, gdb_stdout, | |
2386 | frame, regnum, fpregs); | |
f9418c0f AC |
2387 | continue; |
2388 | } | |
2389 | } | |
ad842144 | 2390 | |
f9418c0f AC |
2391 | /* A register group? */ |
2392 | { | |
1bca9b1e AB |
2393 | const struct reggroup *group = nullptr; |
2394 | for (const struct reggroup *g : gdbarch_reggroups (gdbarch)) | |
f9418c0f AC |
2395 | { |
2396 | /* Don't bother with a length check. Should the user | |
2397 | enter a short register group name, go with the first | |
2398 | group that matches. */ | |
af7ce09b | 2399 | if (strncmp (start, g->name (), end - start) == 0) |
1bca9b1e AB |
2400 | { |
2401 | group = g; | |
2402 | break; | |
2403 | } | |
f9418c0f | 2404 | } |
03acd4d8 | 2405 | if (group != nullptr) |
f9418c0f AC |
2406 | { |
2407 | int regnum; | |
abbb1732 | 2408 | |
f57d151a | 2409 | for (regnum = 0; |
f6efe3f8 | 2410 | regnum < gdbarch_num_cooked_regs (gdbarch); |
f57d151a | 2411 | regnum++) |
f9418c0f | 2412 | { |
a4bd449d UW |
2413 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
2414 | gdbarch_print_registers_info (gdbarch, | |
206415a3 | 2415 | gdb_stdout, frame, |
f9418c0f AC |
2416 | regnum, fpregs); |
2417 | } | |
2418 | continue; | |
2419 | } | |
2420 | } | |
c906108c | 2421 | |
f9418c0f | 2422 | /* Nothing matched. */ |
8a3fe4f8 | 2423 | error (_("Invalid register `%.*s'"), (int) (end - start), start); |
c5aa993b | 2424 | } |
c906108c SS |
2425 | } |
2426 | ||
1dd5fedc | 2427 | static void |
1d12d88f | 2428 | info_all_registers_command (const char *addr_exp, int from_tty) |
c906108c SS |
2429 | { |
2430 | registers_info (addr_exp, 1); | |
2431 | } | |
2432 | ||
a58dd373 | 2433 | static void |
1d12d88f | 2434 | info_registers_command (const char *addr_exp, int from_tty) |
c906108c SS |
2435 | { |
2436 | registers_info (addr_exp, 0); | |
2437 | } | |
e76f1f2e AC |
2438 | |
2439 | static void | |
d80b854b | 2440 | print_vector_info (struct ui_file *file, |
bd2b40ac | 2441 | frame_info_ptr frame, const char *args) |
e76f1f2e | 2442 | { |
d80b854b UW |
2443 | struct gdbarch *gdbarch = get_frame_arch (frame); |
2444 | ||
e76f1f2e AC |
2445 | if (gdbarch_print_vector_info_p (gdbarch)) |
2446 | gdbarch_print_vector_info (gdbarch, file, frame, args); | |
2447 | else | |
2448 | { | |
2449 | int regnum; | |
2450 | int printed_something = 0; | |
ab4327e0 | 2451 | |
f6efe3f8 | 2452 | for (regnum = 0; regnum < gdbarch_num_cooked_regs (gdbarch); regnum++) |
e76f1f2e | 2453 | { |
f9418c0f | 2454 | if (gdbarch_register_reggroup_p (gdbarch, regnum, vector_reggroup)) |
e76f1f2e AC |
2455 | { |
2456 | printed_something = 1; | |
e76f1f2e | 2457 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
e76f1f2e AC |
2458 | } |
2459 | } | |
2460 | if (!printed_something) | |
6cb06a8c | 2461 | gdb_printf (file, "No vector information\n"); |
e76f1f2e AC |
2462 | } |
2463 | } | |
2464 | ||
2465 | static void | |
1d12d88f | 2466 | info_vector_command (const char *args, int from_tty) |
e76f1f2e | 2467 | { |
9dccd06e | 2468 | if (!target_has_registers ()) |
206415a3 DJ |
2469 | error (_("The program has no registers now.")); |
2470 | ||
03acd4d8 | 2471 | print_vector_info (gdb_stdout, get_selected_frame (nullptr), args); |
e76f1f2e | 2472 | } |
c906108c | 2473 | \f |
5fd62852 PA |
2474 | /* Kill the inferior process. Make us have no inferior. */ |
2475 | ||
2476 | static void | |
981a3fb3 | 2477 | kill_command (const char *arg, int from_tty) |
5fd62852 PA |
2478 | { |
2479 | /* FIXME: This should not really be inferior_ptid (or target_has_execution). | |
2480 | It should be a distinct flag that indicates that a target is active, cuz | |
1777feb0 | 2481 | some targets don't have processes! */ |
5fd62852 | 2482 | |
d7e15655 | 2483 | if (inferior_ptid == null_ptid) |
5fd62852 PA |
2484 | error (_("The program is not being run.")); |
2485 | if (!query (_("Kill the program being debugged? "))) | |
2486 | error (_("Not confirmed.")); | |
f67c0c91 | 2487 | |
249b5733 PA |
2488 | int pid = current_inferior ()->pid; |
2489 | /* Save the pid as a string before killing the inferior, since that | |
2490 | may unpush the current target, and we need the string after. */ | |
f2907e49 | 2491 | std::string pid_str = target_pid_to_str (ptid_t (pid)); |
f67c0c91 SDJ |
2492 | int infnum = current_inferior ()->num; |
2493 | ||
5fd62852 | 2494 | target_kill (); |
34fda50b | 2495 | bfd_cache_close_all (); |
5fd62852 | 2496 | |
a81871f7 PA |
2497 | update_previous_thread (); |
2498 | ||
f67c0c91 | 2499 | if (print_inferior_events) |
6cb06a8c TT |
2500 | gdb_printf (_("[Inferior %d (%s) killed]\n"), |
2501 | infnum, pid_str.c_str ()); | |
5fd62852 | 2502 | } |
c5aa993b | 2503 | |
08036331 | 2504 | /* Used in `attach&' command. Proceed threads of inferior INF iff |
74531fed | 2505 | they stopped due to debugger request, and when they did, they |
08036331 PA |
2506 | reported a clean stop (GDB_SIGNAL_0). Do not proceed threads that |
2507 | have been explicitly been told to stop. */ | |
74531fed PA |
2508 | |
2509 | static void | |
08036331 | 2510 | proceed_after_attach (inferior *inf) |
74531fed PA |
2511 | { |
2512 | /* Don't error out if the current thread is running, because | |
2513 | there may be other stopped threads. */ | |
74531fed PA |
2514 | |
2515 | /* Backup current thread and selected frame. */ | |
5ed8105e | 2516 | scoped_restore_current_thread restore_thread; |
74531fed | 2517 | |
08036331 | 2518 | for (thread_info *thread : inf->non_exited_threads ()) |
611841bb | 2519 | if (!thread->executing () |
08036331 | 2520 | && !thread->stop_requested |
1edb66d8 | 2521 | && thread->stop_signal () == GDB_SIGNAL_0) |
08036331 PA |
2522 | { |
2523 | switch_to_thread (thread); | |
2524 | clear_proceed_status (0); | |
2525 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT); | |
2526 | } | |
74531fed PA |
2527 | } |
2528 | ||
6efcd9a8 | 2529 | /* See inferior.h. */ |
c906108c | 2530 | |
6efcd9a8 PA |
2531 | void |
2532 | setup_inferior (int from_tty) | |
9356cf8d | 2533 | { |
d6b48e9c | 2534 | struct inferior *inferior; |
9356cf8d | 2535 | |
d6b48e9c | 2536 | inferior = current_inferior (); |
30220b46 | 2537 | inferior->needs_setup = false; |
9356cf8d PA |
2538 | |
2539 | /* If no exec file is yet known, try to determine it from the | |
2540 | process itself. */ | |
03acd4d8 | 2541 | if (get_exec_file (0) == nullptr) |
e99b03dc | 2542 | exec_file_locate_attach (inferior_ptid.pid (), 1, from_tty); |
9356cf8d PA |
2543 | else |
2544 | { | |
2545 | reopen_exec_file (); | |
9dec38d3 | 2546 | reread_symbols (from_tty); |
9356cf8d PA |
2547 | } |
2548 | ||
2549 | /* Take any necessary post-attaching actions for this platform. */ | |
e99b03dc | 2550 | target_post_attach (inferior_ptid.pid ()); |
9356cf8d | 2551 | |
a7aba266 | 2552 | post_create_inferior (from_tty); |
6efcd9a8 PA |
2553 | } |
2554 | ||
2555 | /* What to do after the first program stops after attaching. */ | |
2556 | enum attach_post_wait_mode | |
2557 | { | |
2558 | /* Do nothing. Leaves threads as they are. */ | |
2559 | ATTACH_POST_WAIT_NOTHING, | |
2560 | ||
2561 | /* Re-resume threads that are marked running. */ | |
2562 | ATTACH_POST_WAIT_RESUME, | |
2563 | ||
2564 | /* Stop all threads. */ | |
2565 | ATTACH_POST_WAIT_STOP, | |
2566 | }; | |
2567 | ||
2568 | /* Called after we've attached to a process and we've seen it stop for | |
6fee5eee TBA |
2569 | the first time. Resume, stop, or don't touch the threads according |
2570 | to MODE. */ | |
6efcd9a8 PA |
2571 | |
2572 | static void | |
27d0790a | 2573 | attach_post_wait (int from_tty, enum attach_post_wait_mode mode) |
6efcd9a8 PA |
2574 | { |
2575 | struct inferior *inferior; | |
9356cf8d | 2576 | |
6efcd9a8 PA |
2577 | inferior = current_inferior (); |
2578 | inferior->control.stop_soon = NO_STOP_QUIETLY; | |
2579 | ||
2580 | if (inferior->needs_setup) | |
2581 | setup_inferior (from_tty); | |
2582 | ||
2583 | if (mode == ATTACH_POST_WAIT_RESUME) | |
74531fed PA |
2584 | { |
2585 | /* The user requested an `attach&', so be sure to leave threads | |
2586 | that didn't get a signal running. */ | |
2587 | ||
6fee5eee | 2588 | /* Immediately resume all suspended threads of this inferior, |
74531fed PA |
2589 | and this inferior only. This should have no effect on |
2590 | already running threads. If a thread has been stopped with a | |
2591 | signal, leave it be. */ | |
2592 | if (non_stop) | |
08036331 | 2593 | proceed_after_attach (inferior); |
74531fed PA |
2594 | else |
2595 | { | |
1edb66d8 | 2596 | if (inferior_thread ()->stop_signal () == GDB_SIGNAL_0) |
74531fed | 2597 | { |
70509625 | 2598 | clear_proceed_status (0); |
64ce06e4 | 2599 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT); |
74531fed PA |
2600 | } |
2601 | } | |
2602 | } | |
6efcd9a8 | 2603 | else if (mode == ATTACH_POST_WAIT_STOP) |
9356cf8d | 2604 | { |
74531fed PA |
2605 | /* The user requested a plain `attach', so be sure to leave |
2606 | the inferior stopped. */ | |
2607 | ||
74531fed PA |
2608 | /* At least the current thread is already stopped. */ |
2609 | ||
2610 | /* In all-stop, by definition, all threads have to be already | |
2611 | stopped at this point. In non-stop, however, although the | |
2612 | selected thread is stopped, others may still be executing. | |
2613 | Be sure to explicitly stop all threads of the process. This | |
2614 | should have no effect on already stopped threads. */ | |
066f6b6e | 2615 | if (non_stop) |
f2907e49 | 2616 | target_stop (ptid_t (inferior->pid)); |
066f6b6e PA |
2617 | else if (target_is_non_stop_p ()) |
2618 | { | |
066f6b6e | 2619 | struct thread_info *lowest = inferior_thread (); |
066f6b6e | 2620 | |
4f5539f0 | 2621 | stop_all_threads ("attaching"); |
066f6b6e PA |
2622 | |
2623 | /* It's not defined which thread will report the attach | |
2624 | stop. For consistency, always select the thread with | |
2625 | lowest GDB number, which should be the main thread, if it | |
2626 | still exists. */ | |
08036331 PA |
2627 | for (thread_info *thread : current_inferior ()->non_exited_threads ()) |
2628 | if (thread->inf->num < lowest->inf->num | |
2629 | || thread->per_inf_num < lowest->per_inf_num) | |
2630 | lowest = thread; | |
066f6b6e | 2631 | |
00431a78 | 2632 | switch_to_thread (lowest); |
066f6b6e | 2633 | } |
74531fed PA |
2634 | |
2635 | /* Tell the user/frontend where we're stopped. */ | |
9356cf8d PA |
2636 | normal_stop (); |
2637 | if (deprecated_attach_hook) | |
2638 | deprecated_attach_hook (); | |
2639 | } | |
2640 | } | |
2641 | ||
6efcd9a8 PA |
2642 | /* "attach" command entry point. Takes a program started up outside |
2643 | of gdb and ``attaches'' to it. This stops it cold in its tracks | |
2644 | and allows us to start debugging it. */ | |
2645 | ||
c906108c | 2646 | void |
0b39b52e | 2647 | attach_command (const char *args, int from_tty) |
c906108c | 2648 | { |
6c4486e6 | 2649 | int async_exec; |
b3ccfe11 | 2650 | struct target_ops *attach_target; |
6efcd9a8 PA |
2651 | struct inferior *inferior = current_inferior (); |
2652 | enum attach_post_wait_mode mode; | |
c906108c | 2653 | |
c5aa993b | 2654 | dont_repeat (); /* Not for the faint of heart */ |
c906108c | 2655 | |
1192f124 SM |
2656 | scoped_disable_commit_resumed disable_commit_resumed ("attaching"); |
2657 | ||
f5656ead | 2658 | if (gdbarch_has_global_solist (target_gdbarch ())) |
2567c7d9 PA |
2659 | /* Don't complain if all processes share the same symbol |
2660 | space. */ | |
8a305172 | 2661 | ; |
55f6301a | 2662 | else if (target_has_execution ()) |
c906108c | 2663 | { |
9e2f0ad4 | 2664 | if (query (_("A program is being debugged already. Kill it? "))) |
c906108c SS |
2665 | target_kill (); |
2666 | else | |
8a3fe4f8 | 2667 | error (_("Not killed.")); |
c906108c SS |
2668 | } |
2669 | ||
fd79ecee DJ |
2670 | /* Clean up any leftovers from other runs. Some other things from |
2671 | this function should probably be moved into target_pre_inferior. */ | |
2672 | target_pre_inferior (from_tty); | |
2673 | ||
6be9a197 TT |
2674 | gdb::unique_xmalloc_ptr<char> stripped = strip_bg_char (args, &async_exec); |
2675 | args = stripped.get (); | |
8bc2fe48 | 2676 | |
b3ccfe11 TT |
2677 | attach_target = find_attach_target (); |
2678 | ||
8bc2fe48 PA |
2679 | prepare_execution_command (attach_target, async_exec); |
2680 | ||
f6ac5f3d | 2681 | if (non_stop && !attach_target->supports_non_stop ()) |
9908b566 VP |
2682 | error (_("Cannot attach to this target in non-stop mode")); |
2683 | ||
f6ac5f3d | 2684 | attach_target->attach (args, from_tty); |
b3ccfe11 TT |
2685 | /* to_attach should push the target, so after this point we |
2686 | shouldn't refer to attach_target again. */ | |
03acd4d8 | 2687 | attach_target = nullptr; |
c906108c | 2688 | |
1f9d9e32 AB |
2689 | infrun_debug_show_threads ("immediately after attach", |
2690 | current_inferior ()->non_exited_threads ()); | |
993248f4 | 2691 | |
e05523bd JB |
2692 | /* Enable async mode if it is supported by the target. */ |
2693 | if (target_can_async_p ()) | |
4a570176 | 2694 | target_async (true); |
e05523bd | 2695 | |
c906108c SS |
2696 | /* Set up the "saved terminal modes" of the inferior |
2697 | based on what modes we are starting it with. */ | |
223ffa71 | 2698 | target_terminal::init (); |
c906108c | 2699 | |
7180e04a PA |
2700 | /* Install inferior's terminal modes. This may look like a no-op, |
2701 | as we've just saved them above, however, this does more than | |
2702 | restore terminal settings: | |
2703 | ||
2704 | - installs a SIGINT handler that forwards SIGINT to the inferior. | |
2705 | Otherwise a Ctrl-C pressed just while waiting for the initial | |
2706 | stop would end up as a spurious Quit. | |
2707 | ||
2708 | - removes stdin from the event loop, which we need if attaching | |
2709 | in the foreground, otherwise on targets that report an initial | |
2710 | stop on attach (which are most) we'd process input/commands | |
2711 | while we're in the event loop waiting for that stop. That is, | |
2712 | before the attach continuation runs and the command is really | |
2713 | finished. */ | |
223ffa71 | 2714 | target_terminal::inferior (); |
7180e04a | 2715 | |
c906108c SS |
2716 | /* Set up execution context to know that we should return from |
2717 | wait_for_inferior as soon as the target reports a stop. */ | |
2718 | init_wait_for_inferior (); | |
c906108c | 2719 | |
30220b46 | 2720 | inferior->needs_setup = true; |
6efcd9a8 | 2721 | |
fbea99ea | 2722 | if (target_is_non_stop_p ()) |
74531fed PA |
2723 | { |
2724 | /* If we find that the current thread isn't stopped, explicitly | |
2725 | do so now, because we're going to install breakpoints and | |
2726 | poke at memory. */ | |
2727 | ||
2728 | if (async_exec) | |
2729 | /* The user requested an `attach&'; stop just one thread. */ | |
2730 | target_stop (inferior_ptid); | |
2731 | else | |
2732 | /* The user requested an `attach', so stop all threads of this | |
2733 | inferior. */ | |
e99b03dc | 2734 | target_stop (ptid_t (inferior_ptid.pid ())); |
74531fed PA |
2735 | } |
2736 | ||
a2fedca9 PW |
2737 | /* Check for exec file mismatch, and let the user solve it. */ |
2738 | validate_exec_file (from_tty); | |
2739 | ||
6efcd9a8 PA |
2740 | mode = async_exec ? ATTACH_POST_WAIT_RESUME : ATTACH_POST_WAIT_STOP; |
2741 | ||
dc177b7a PA |
2742 | /* Some system don't generate traps when attaching to inferior. |
2743 | E.g. Mach 3 or GNU hurd. */ | |
f6ac5f3d | 2744 | if (!target_attach_no_wait ()) |
c5aa993b | 2745 | { |
1777feb0 | 2746 | /* Careful here. See comments in inferior.h. Basically some |
dc177b7a PA |
2747 | OSes don't ignore SIGSTOPs on continue requests anymore. We |
2748 | need a way for handle_inferior_event to reset the stop_signal | |
2749 | variable after an attach, and this is what | |
2750 | STOP_QUIETLY_NO_SIGSTOP is for. */ | |
16c381f0 | 2751 | inferior->control.stop_soon = STOP_QUIETLY_NO_SIGSTOP; |
c5aa993b | 2752 | |
3b12939d | 2753 | /* Wait for stop. */ |
4efeb0d3 | 2754 | inferior->add_continuation ([=] () |
c4c493de TBA |
2755 | { |
2756 | attach_post_wait (from_tty, mode); | |
2757 | }); | |
0b333c5e | 2758 | |
5b6d1e4f PA |
2759 | /* Let infrun consider waiting for events out of this |
2760 | target. */ | |
2761 | inferior->process_target ()->threads_executing = true; | |
2762 | ||
0b333c5e PA |
2763 | if (!target_is_async_p ()) |
2764 | mark_infrun_async_event_handler (); | |
2765 | return; | |
dc177b7a | 2766 | } |
5b6d1e4f | 2767 | else |
27d0790a | 2768 | attach_post_wait (from_tty, mode); |
1192f124 SM |
2769 | |
2770 | disable_commit_resumed.reset_and_commit (); | |
c906108c SS |
2771 | } |
2772 | ||
1941c569 PA |
2773 | /* We had just found out that the target was already attached to an |
2774 | inferior. PTID points at a thread of this new inferior, that is | |
2775 | the most likely to be stopped right now, but not necessarily so. | |
2776 | The new inferior is assumed to be already added to the inferior | |
2777 | list at this point. If LEAVE_RUNNING, then leave the threads of | |
2778 | this inferior running, except those we've explicitly seen reported | |
2779 | as stopped. */ | |
2780 | ||
2781 | void | |
8a82de58 | 2782 | notice_new_inferior (thread_info *thr, bool leave_running, int from_tty) |
1941c569 | 2783 | { |
5ed8105e PA |
2784 | enum attach_post_wait_mode mode |
2785 | = leave_running ? ATTACH_POST_WAIT_RESUME : ATTACH_POST_WAIT_NOTHING; | |
1941c569 | 2786 | |
5ed8105e | 2787 | gdb::optional<scoped_restore_current_thread> restore_thread; |
1941c569 | 2788 | |
5ed8105e PA |
2789 | if (inferior_ptid != null_ptid) |
2790 | restore_thread.emplace (); | |
1941c569 | 2791 | |
6efcd9a8 PA |
2792 | /* Avoid reading registers -- we haven't fetched the target |
2793 | description yet. */ | |
00431a78 | 2794 | switch_to_thread_no_regs (thr); |
1941c569 PA |
2795 | |
2796 | /* When we "notice" a new inferior we need to do all the things we | |
2797 | would normally do if we had just attached to it. */ | |
2798 | ||
611841bb | 2799 | if (thr->executing ()) |
1941c569 PA |
2800 | { |
2801 | struct inferior *inferior = current_inferior (); | |
2802 | ||
2803 | /* We're going to install breakpoints, and poke at memory, | |
2804 | ensure that the inferior is stopped for a moment while we do | |
2805 | that. */ | |
2806 | target_stop (inferior_ptid); | |
2807 | ||
16c381f0 | 2808 | inferior->control.stop_soon = STOP_QUIETLY_REMOTE; |
1941c569 PA |
2809 | |
2810 | /* Wait for stop before proceeding. */ | |
4efeb0d3 | 2811 | inferior->add_continuation ([=] () |
c4c493de TBA |
2812 | { |
2813 | attach_post_wait (from_tty, mode); | |
2814 | }); | |
1941c569 | 2815 | |
0b333c5e | 2816 | return; |
1941c569 PA |
2817 | } |
2818 | ||
27d0790a | 2819 | attach_post_wait (from_tty, mode); |
1941c569 PA |
2820 | } |
2821 | ||
c906108c SS |
2822 | /* |
2823 | * detach_command -- | |
2824 | * takes a program previously attached to and detaches it. | |
2825 | * The program resumes execution and will no longer stop | |
2826 | * on signals, etc. We better not have left any breakpoints | |
2827 | * in the program or it'll die when it hits one. For this | |
2828 | * to work, it may be necessary for the process to have been | |
2829 | * previously attached. It *might* work if the program was | |
2830 | * started via the normal ptrace (PTRACE_TRACEME). | |
2831 | */ | |
2832 | ||
6418d433 | 2833 | void |
981a3fb3 | 2834 | detach_command (const char *args, int from_tty) |
c906108c | 2835 | { |
1f5d0fc9 | 2836 | dont_repeat (); /* Not for the faint of heart. */ |
d729566a | 2837 | |
d7e15655 | 2838 | if (inferior_ptid == null_ptid) |
d729566a PA |
2839 | error (_("The program is not being run.")); |
2840 | ||
1192f124 SM |
2841 | scoped_disable_commit_resumed disable_commit_resumed ("detaching"); |
2842 | ||
2f9d54cf PA |
2843 | query_if_trace_running (from_tty); |
2844 | ||
2845 | disconnect_tracing (); | |
d5551862 | 2846 | |
408f6686 PA |
2847 | /* Hold a strong reference to the target while (maybe) |
2848 | detaching the parent. Otherwise detaching could close the | |
2849 | target. */ | |
2850 | auto target_ref | |
2851 | = target_ops_ref::new_reference (current_inferior ()->process_target ()); | |
2852 | ||
2853 | /* Save this before detaching, since detaching may unpush the | |
2854 | process_stratum target. */ | |
2855 | bool was_non_stop_p = target_is_non_stop_p (); | |
2856 | ||
6e1e1966 | 2857 | target_detach (current_inferior (), from_tty); |
50c71eaf | 2858 | |
a81871f7 PA |
2859 | update_previous_thread (); |
2860 | ||
63000888 PA |
2861 | /* The current inferior process was just detached successfully. Get |
2862 | rid of breakpoints that no longer make sense. Note we don't do | |
2863 | this within target_detach because that is also used when | |
2864 | following child forks, and in that case we will want to transfer | |
2865 | breakpoints to the child, not delete them. */ | |
2866 | breakpoint_init_inferior (inf_exited); | |
2867 | ||
50c71eaf PA |
2868 | /* If the solist is global across inferiors, don't clear it when we |
2869 | detach from a single inferior. */ | |
f5656ead | 2870 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
03acd4d8 | 2871 | no_shared_libraries (nullptr, from_tty); |
8a305172 | 2872 | |
9a4105ab AC |
2873 | if (deprecated_detach_hook) |
2874 | deprecated_detach_hook (); | |
408f6686 PA |
2875 | |
2876 | if (!was_non_stop_p) | |
2877 | restart_after_all_stop_detach (as_process_stratum_target (target_ref.get ())); | |
1192f124 SM |
2878 | |
2879 | disable_commit_resumed.reset_and_commit (); | |
c906108c SS |
2880 | } |
2881 | ||
6ad8ae5c DJ |
2882 | /* Disconnect from the current target without resuming it (leaving it |
2883 | waiting for a debugger). | |
2884 | ||
2885 | We'd better not have left any breakpoints in the program or the | |
2886 | next debugger will get confused. Currently only supported for some | |
2887 | remote targets, since the normal attach mechanisms don't work on | |
2888 | stopped processes on some native platforms (e.g. GNU/Linux). */ | |
2889 | ||
2890 | static void | |
0b39b52e | 2891 | disconnect_command (const char *args, int from_tty) |
6ad8ae5c | 2892 | { |
1777feb0 | 2893 | dont_repeat (); /* Not for the faint of heart. */ |
2f9d54cf PA |
2894 | query_if_trace_running (from_tty); |
2895 | disconnect_tracing (); | |
6ad8ae5c | 2896 | target_disconnect (args, from_tty); |
03acd4d8 | 2897 | no_shared_libraries (nullptr, from_tty); |
a0ef4274 | 2898 | init_thread_list (); |
a81871f7 | 2899 | update_previous_thread (); |
9a4105ab AC |
2900 | if (deprecated_detach_hook) |
2901 | deprecated_detach_hook (); | |
6ad8ae5c DJ |
2902 | } |
2903 | ||
5b6d1e4f PA |
2904 | /* Stop PTID in the current target, and tag the PTID threads as having |
2905 | been explicitly requested to stop. PTID can be a thread, a | |
2906 | process, or minus_one_ptid, meaning all threads of all inferiors of | |
2907 | the current target. */ | |
e42de8c7 | 2908 | |
5b6d1e4f PA |
2909 | static void |
2910 | stop_current_target_threads_ns (ptid_t ptid) | |
2911 | { | |
2912 | target_stop (ptid); | |
252fbfc8 PA |
2913 | |
2914 | /* Tag the thread as having been explicitly requested to stop, so | |
2915 | other parts of gdb know not to resume this thread automatically, | |
2916 | if it was stopped due to an internal event. Limit this to | |
2917 | non-stop mode, as when debugging a multi-threaded application in | |
2918 | all-stop mode, we will only get one stop event --- it's undefined | |
2919 | which thread will report the event. */ | |
5b6d1e4f PA |
2920 | set_stop_requested (current_inferior ()->process_target (), |
2921 | ptid, 1); | |
2922 | } | |
2923 | ||
2924 | /* See inferior.h. */ | |
2925 | ||
2926 | void | |
2927 | interrupt_target_1 (bool all_threads) | |
2928 | { | |
1192f124 SM |
2929 | scoped_disable_commit_resumed disable_commit_resumed ("interrupting"); |
2930 | ||
252fbfc8 | 2931 | if (non_stop) |
5b6d1e4f PA |
2932 | { |
2933 | if (all_threads) | |
2934 | { | |
2935 | scoped_restore_current_thread restore_thread; | |
2936 | ||
2937 | for (inferior *inf : all_inferiors ()) | |
2938 | { | |
2939 | switch_to_inferior_no_thread (inf); | |
2940 | stop_current_target_threads_ns (minus_one_ptid); | |
2941 | } | |
2942 | } | |
2943 | else | |
2944 | stop_current_target_threads_ns (inferior_ptid); | |
2945 | } | |
2946 | else | |
2947 | target_interrupt (); | |
1192f124 SM |
2948 | |
2949 | disable_commit_resumed.reset_and_commit (); | |
77ebaa5a VP |
2950 | } |
2951 | ||
6339bfc4 DE |
2952 | /* interrupt [-a] |
2953 | Stop the execution of the target while running in async mode, in | |
17e5269b | 2954 | the background. In all-stop, stop the whole process. In non-stop |
8cae4b3f PA |
2955 | mode, stop the current thread only by default, or stop all threads |
2956 | if the `-a' switch is used. */ | |
2957 | ||
1dd5fedc | 2958 | static void |
0b39b52e | 2959 | interrupt_command (const char *args, int from_tty) |
43ff13b4 | 2960 | { |
362646f5 | 2961 | if (target_can_async_p ()) |
43ff13b4 | 2962 | { |
8cae4b3f PA |
2963 | int all_threads = 0; |
2964 | ||
1777feb0 | 2965 | dont_repeat (); /* Not for the faint of heart. */ |
94cc34af | 2966 | |
03acd4d8 | 2967 | if (args != nullptr |
61012eef | 2968 | && startswith (args, "-a")) |
8cae4b3f PA |
2969 | all_threads = 1; |
2970 | ||
77ebaa5a | 2971 | interrupt_target_1 (all_threads); |
43ff13b4 JM |
2972 | } |
2973 | } | |
2974 | ||
cc86d1cb YQ |
2975 | /* See inferior.h. */ |
2976 | ||
2977 | void | |
2978 | default_print_float_info (struct gdbarch *gdbarch, struct ui_file *file, | |
bd2b40ac | 2979 | frame_info_ptr frame, const char *args) |
c906108c | 2980 | { |
cc86d1cb YQ |
2981 | int regnum; |
2982 | int printed_something = 0; | |
d80b854b | 2983 | |
f6efe3f8 | 2984 | for (regnum = 0; regnum < gdbarch_num_cooked_regs (gdbarch); regnum++) |
23e3a7ac | 2985 | { |
cc86d1cb | 2986 | if (gdbarch_register_reggroup_p (gdbarch, regnum, float_reggroup)) |
23e3a7ac | 2987 | { |
cc86d1cb YQ |
2988 | printed_something = 1; |
2989 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); | |
23e3a7ac | 2990 | } |
23e3a7ac | 2991 | } |
cc86d1cb | 2992 | if (!printed_something) |
6cb06a8c TT |
2993 | gdb_printf (file, "No floating-point info " |
2994 | "available for this processor.\n"); | |
23e3a7ac AC |
2995 | } |
2996 | ||
2997 | static void | |
1d12d88f | 2998 | info_float_command (const char *args, int from_tty) |
23e3a7ac | 2999 | { |
bd2b40ac | 3000 | frame_info_ptr frame; |
cc86d1cb | 3001 | |
9dccd06e | 3002 | if (!target_has_registers ()) |
206415a3 DJ |
3003 | error (_("The program has no registers now.")); |
3004 | ||
03acd4d8 | 3005 | frame = get_selected_frame (nullptr); |
cc86d1cb | 3006 | gdbarch_print_float_info (get_frame_arch (frame), gdb_stdout, frame, args); |
c906108c SS |
3007 | } |
3008 | \f | |
145b16a9 UW |
3009 | /* Implement `info proc' family of commands. */ |
3010 | ||
3011 | static void | |
69f476a3 | 3012 | info_proc_cmd_1 (const char *args, enum info_proc_what what, int from_tty) |
145b16a9 | 3013 | { |
3030c96e UW |
3014 | struct gdbarch *gdbarch = get_current_arch (); |
3015 | ||
451b7c33 TT |
3016 | if (!target_info_proc (args, what)) |
3017 | { | |
3018 | if (gdbarch_info_proc_p (gdbarch)) | |
3019 | gdbarch_info_proc (gdbarch, args, what); | |
3020 | else | |
3021 | error (_("Not supported on this target.")); | |
3022 | } | |
145b16a9 UW |
3023 | } |
3024 | ||
85102364 | 3025 | /* Implement `info proc' when given without any further parameters. */ |
145b16a9 UW |
3026 | |
3027 | static void | |
981a3fb3 | 3028 | info_proc_cmd (const char *args, int from_tty) |
145b16a9 UW |
3029 | { |
3030 | info_proc_cmd_1 (args, IP_MINIMAL, from_tty); | |
3031 | } | |
3032 | ||
3033 | /* Implement `info proc mappings'. */ | |
3034 | ||
3035 | static void | |
69f476a3 | 3036 | info_proc_cmd_mappings (const char *args, int from_tty) |
145b16a9 UW |
3037 | { |
3038 | info_proc_cmd_1 (args, IP_MAPPINGS, from_tty); | |
3039 | } | |
3040 | ||
3041 | /* Implement `info proc stat'. */ | |
3042 | ||
3043 | static void | |
69f476a3 | 3044 | info_proc_cmd_stat (const char *args, int from_tty) |
145b16a9 UW |
3045 | { |
3046 | info_proc_cmd_1 (args, IP_STAT, from_tty); | |
3047 | } | |
3048 | ||
3049 | /* Implement `info proc status'. */ | |
3050 | ||
3051 | static void | |
69f476a3 | 3052 | info_proc_cmd_status (const char *args, int from_tty) |
145b16a9 UW |
3053 | { |
3054 | info_proc_cmd_1 (args, IP_STATUS, from_tty); | |
3055 | } | |
3056 | ||
3057 | /* Implement `info proc cwd'. */ | |
3058 | ||
3059 | static void | |
69f476a3 | 3060 | info_proc_cmd_cwd (const char *args, int from_tty) |
145b16a9 UW |
3061 | { |
3062 | info_proc_cmd_1 (args, IP_CWD, from_tty); | |
3063 | } | |
3064 | ||
3065 | /* Implement `info proc cmdline'. */ | |
3066 | ||
3067 | static void | |
69f476a3 | 3068 | info_proc_cmd_cmdline (const char *args, int from_tty) |
145b16a9 UW |
3069 | { |
3070 | info_proc_cmd_1 (args, IP_CMDLINE, from_tty); | |
3071 | } | |
3072 | ||
3073 | /* Implement `info proc exe'. */ | |
3074 | ||
3075 | static void | |
69f476a3 | 3076 | info_proc_cmd_exe (const char *args, int from_tty) |
145b16a9 UW |
3077 | { |
3078 | info_proc_cmd_1 (args, IP_EXE, from_tty); | |
3079 | } | |
3080 | ||
e98ee8c4 JB |
3081 | /* Implement `info proc files'. */ |
3082 | ||
3083 | static void | |
3084 | info_proc_cmd_files (const char *args, int from_tty) | |
3085 | { | |
3086 | info_proc_cmd_1 (args, IP_FILES, from_tty); | |
3087 | } | |
3088 | ||
145b16a9 UW |
3089 | /* Implement `info proc all'. */ |
3090 | ||
3091 | static void | |
69f476a3 | 3092 | info_proc_cmd_all (const char *args, int from_tty) |
145b16a9 UW |
3093 | { |
3094 | info_proc_cmd_1 (args, IP_ALL, from_tty); | |
3095 | } | |
3096 | ||
000439d5 TT |
3097 | /* Implement `show print finish'. */ |
3098 | ||
3099 | static void | |
3100 | show_print_finish (struct ui_file *file, int from_tty, | |
3101 | struct cmd_list_element *c, | |
3102 | const char *value) | |
3103 | { | |
6cb06a8c | 3104 | gdb_printf (file, _("\ |
000439d5 | 3105 | Printing of return value after `finish' is %s.\n"), |
6cb06a8c | 3106 | value); |
000439d5 TT |
3107 | } |
3108 | ||
3109 | ||
4e5a4f58 JB |
3110 | /* This help string is used for the run, start, and starti commands. |
3111 | It is defined as a macro to prevent duplication. */ | |
3112 | ||
3113 | #define RUN_ARGS_HELP \ | |
3114 | "You may specify arguments to give it.\n\ | |
3115 | Args may include \"*\", or \"[...]\"; they are expanded using the\n\ | |
3116 | shell that will start the program (specified by the \"$SHELL\" environment\n\ | |
3117 | variable). Input and output redirection with \">\", \"<\", or \">>\"\n\ | |
3118 | are also allowed.\n\ | |
3119 | \n\ | |
3120 | With no arguments, uses arguments last specified (with \"run\" or \n\ | |
3121 | \"set args\"). To cancel previous arguments and run with no arguments,\n\ | |
3122 | use \"set args\" without arguments.\n\ | |
3123 | \n\ | |
3124 | To start the inferior without using a shell, use \"set startup-with-shell off\"." | |
3125 | ||
6c265988 | 3126 | void _initialize_infcmd (); |
c906108c | 3127 | void |
6c265988 | 3128 | _initialize_infcmd () |
c906108c | 3129 | { |
145b16a9 | 3130 | static struct cmd_list_element *info_proc_cmdlist; |
03acd4d8 | 3131 | struct cmd_list_element *c = nullptr; |
3cb3b8df | 3132 | |
1777feb0 | 3133 | /* Add the filename of the terminal connected to inferior I/O. */ |
33c054b0 | 3134 | auto tty_set_show |
598e87ec | 3135 | = add_setshow_optional_filename_cmd ("inferior-tty", class_run, _("\ |
33c054b0 AB |
3136 | Set terminal for future runs of program being debugged."), _(" \ |
3137 | Show terminal for future runs of program being debugged."), _(" \ | |
3138 | Usage: set inferior-tty [TTY]\n\n \ | |
3139 | If TTY is omitted, the default behavior of using the same terminal as GDB\n \ | |
0a1ddfa6 | 3140 | is restored."), |
598e87ec AB |
3141 | set_tty_value, |
3142 | get_tty_value, | |
33c054b0 AB |
3143 | show_inferior_tty_command, |
3144 | &setlist, &showlist); | |
3145 | add_alias_cmd ("tty", tty_set_show.set, class_run, 0, &cmdlist); | |
3146 | ||
3147 | auto args_set_show | |
cc09d372 | 3148 | = add_setshow_string_noescape_cmd ("args", class_run, _("\ |
b4b4ac0b AC |
3149 | Set argument list to give program being debugged when it is started."), _("\ |
3150 | Show argument list to give program being debugged when it is started."), _("\ | |
3151 | Follow this command with any number of args, to be passed to the program."), | |
cc09d372 AB |
3152 | set_args_value, |
3153 | get_args_value, | |
33c054b0 AB |
3154 | show_args_command, |
3155 | &setlist, &showlist); | |
3156 | set_cmd_completer (args_set_show.set, filename_completer); | |
3157 | ||
3158 | auto cwd_set_show | |
94e6c564 | 3159 | = add_setshow_string_noescape_cmd ("cwd", class_run, _("\ |
33c054b0 AB |
3160 | Set the current working directory to be used when the inferior is started.\n \ |
3161 | Changing this setting does not have any effect on inferiors that are\n \ | |
d092c5a2 | 3162 | already running."), |
33c054b0 | 3163 | _("\ |
d092c5a2 | 3164 | Show the current working directory that is used when the inferior is started."), |
33c054b0 | 3165 | _("\ |
d092c5a2 SDJ |
3166 | Use this command to change the current working directory that will be used\n\ |
3167 | when the inferior is started. This setting does not affect GDB's current\n\ | |
3168 | working directory."), | |
94e6c564 | 3169 | set_cwd_value, get_inferior_cwd, |
33c054b0 AB |
3170 | show_cwd_command, |
3171 | &setlist, &showlist); | |
3172 | set_cmd_completer (cwd_set_show.set, filename_completer); | |
d092c5a2 | 3173 | |
1a966eab AC |
3174 | c = add_cmd ("environment", no_class, environment_info, _("\ |
3175 | The environment to give the program, or one variable's value.\n\ | |
c906108c SS |
3176 | With an argument VAR, prints the value of environment variable VAR to\n\ |
3177 | give the program being debugged. With no arguments, prints the entire\n\ | |
1a966eab | 3178 | environment to be given to the program."), &showlist); |
5ba2abeb | 3179 | set_cmd_completer (c, noop_completer); |
c906108c | 3180 | |
0743fc83 TT |
3181 | add_basic_prefix_cmd ("unset", no_class, |
3182 | _("Complement to certain \"set\" commands."), | |
2f822da5 | 3183 | &unsetlist, 0, &cmdlist); |
c5aa993b | 3184 | |
1a966eab AC |
3185 | c = add_cmd ("environment", class_run, unset_environment_command, _("\ |
3186 | Cancel environment variable VAR for the program.\n\ | |
3187 | This does not affect the program until the next \"run\" command."), | |
c5aa993b | 3188 | &unsetlist); |
5ba2abeb | 3189 | set_cmd_completer (c, noop_completer); |
c906108c | 3190 | |
1a966eab AC |
3191 | c = add_cmd ("environment", class_run, set_environment_command, _("\ |
3192 | Set environment variable value to give the program.\n\ | |
c906108c SS |
3193 | Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\ |
3194 | VALUES of environment variables are uninterpreted strings.\n\ | |
1a966eab | 3195 | This does not affect the program until the next \"run\" command."), |
c5aa993b | 3196 | &setlist); |
5ba2abeb | 3197 | set_cmd_completer (c, noop_completer); |
c5aa993b | 3198 | |
1bedd215 AC |
3199 | c = add_com ("path", class_files, path_command, _("\ |
3200 | Add directory DIR(s) to beginning of search path for object files.\n\ | |
c906108c SS |
3201 | $cwd in the path means the current working directory.\n\ |
3202 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
3203 | directories, separated by colons. These directories are searched to find\n\ | |
3e43a32a MS |
3204 | fully linked executable files and separately compiled object files as \ |
3205 | needed.")); | |
5ba2abeb | 3206 | set_cmd_completer (c, filename_completer); |
c906108c | 3207 | |
1a966eab AC |
3208 | c = add_cmd ("paths", no_class, path_info, _("\ |
3209 | Current search path for finding object files.\n\ | |
c906108c SS |
3210 | $cwd in the path means the current working directory.\n\ |
3211 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
3212 | directories, separated by colons. These directories are searched to find\n\ | |
3e43a32a MS |
3213 | fully linked executable files and separately compiled object files as \ |
3214 | needed."), | |
c906108c | 3215 | &showlist); |
5ba2abeb | 3216 | set_cmd_completer (c, noop_completer); |
c906108c | 3217 | |
2277426b PA |
3218 | add_prefix_cmd ("kill", class_run, kill_command, |
3219 | _("Kill execution of program being debugged."), | |
2f822da5 | 3220 | &killlist, 0, &cmdlist); |
5fd62852 | 3221 | |
1bedd215 AC |
3222 | add_com ("attach", class_run, attach_command, _("\ |
3223 | Attach to a process or file outside of GDB.\n\ | |
c906108c SS |
3224 | This command attaches to another target, of the same type as your last\n\ |
3225 | \"target\" command (\"info files\" will show your target stack).\n\ | |
3226 | The command may take as argument a process id or a device file.\n\ | |
3227 | For a process id, you must have permission to send the process a signal,\n\ | |
3228 | and it must have the same effective uid as the debugger.\n\ | |
3229 | When using \"attach\" with a process id, the debugger finds the\n\ | |
3230 | program running in the process, looking first in the current working\n\ | |
3231 | directory, or (if not found there) using the source file search path\n\ | |
3232 | (see the \"directory\" command). You can also use the \"file\" command\n\ | |
1bedd215 | 3233 | to specify the program, and to load its symbol table.")); |
c906108c | 3234 | |
f73adfeb | 3235 | add_prefix_cmd ("detach", class_run, detach_command, _("\ |
1bedd215 | 3236 | Detach a process or file previously attached.\n\ |
c906108c | 3237 | If a process, it is no longer traced, and it continues its execution. If\n\ |
f73adfeb | 3238 | you were debugging a file, the file is closed and gdb no longer accesses it."), |
2f822da5 | 3239 | &detachlist, 0, &cmdlist); |
c906108c | 3240 | |
1bedd215 AC |
3241 | add_com ("disconnect", class_run, disconnect_command, _("\ |
3242 | Disconnect from a target.\n\ | |
6ad8ae5c | 3243 | The target will wait for another debugger to connect. Not available for\n\ |
1bedd215 | 3244 | all targets.")); |
6ad8ae5c | 3245 | |
de0bea00 | 3246 | c = add_com ("signal", class_run, signal_command, _("\ |
486c7739 MF |
3247 | Continue program with the specified signal.\n\ |
3248 | Usage: signal SIGNAL\n\ | |
2edda2ff | 3249 | The SIGNAL argument is processed the same as the handle command.\n\ |
486c7739 MF |
3250 | \n\ |
3251 | An argument of \"0\" means continue the program without sending it a signal.\n\ | |
3252 | This is useful in cases where the program stopped because of a signal,\n\ | |
81219e53 DE |
3253 | and you want to resume the program while discarding the signal.\n\ |
3254 | \n\ | |
3255 | In a multi-threaded program the signal is delivered to, or discarded from,\n\ | |
3256 | the current thread only.")); | |
3257 | set_cmd_completer (c, signal_completer); | |
3258 | ||
3259 | c = add_com ("queue-signal", class_run, queue_signal_command, _("\ | |
3260 | Queue a signal to be delivered to the current thread when it is resumed.\n\ | |
3261 | Usage: queue-signal SIGNAL\n\ | |
3262 | The SIGNAL argument is processed the same as the handle command.\n\ | |
3263 | It is an error if the handling state of SIGNAL is \"nopass\".\n\ | |
3264 | \n\ | |
3265 | An argument of \"0\" means remove any currently queued signal from\n\ | |
3266 | the current thread. This is useful in cases where the program stopped\n\ | |
3267 | because of a signal, and you want to resume it while discarding the signal.\n\ | |
3268 | \n\ | |
3269 | In a multi-threaded program the signal is queued with, or discarded from,\n\ | |
3270 | the current thread only.")); | |
de0bea00 | 3271 | set_cmd_completer (c, signal_completer); |
c906108c | 3272 | |
3947f654 SM |
3273 | cmd_list_element *stepi_cmd |
3274 | = add_com ("stepi", class_run, stepi_command, _("\ | |
1bedd215 | 3275 | Step one instruction exactly.\n\ |
486c7739 MF |
3276 | Usage: stepi [N]\n\ |
3277 | Argument N means step N times (or till program stops for another \ | |
3e43a32a | 3278 | reason).")); |
3947f654 | 3279 | add_com_alias ("si", stepi_cmd, class_run, 0); |
c906108c | 3280 | |
3947f654 SM |
3281 | cmd_list_element *nexti_cmd |
3282 | = add_com ("nexti", class_run, nexti_command, _("\ | |
1bedd215 | 3283 | Step one instruction, but proceed through subroutine calls.\n\ |
486c7739 MF |
3284 | Usage: nexti [N]\n\ |
3285 | Argument N means step N times (or till program stops for another \ | |
3e43a32a | 3286 | reason).")); |
3947f654 | 3287 | add_com_alias ("ni", nexti_cmd, class_run, 0); |
c906108c | 3288 | |
3947f654 SM |
3289 | cmd_list_element *finish_cmd |
3290 | = add_com ("finish", class_run, finish_command, _("\ | |
1bedd215 | 3291 | Execute until selected stack frame returns.\n\ |
486c7739 | 3292 | Usage: finish\n\ |
1bedd215 | 3293 | Upon return, the value returned is printed and put in the value history.")); |
3947f654 | 3294 | add_com_alias ("fin", finish_cmd, class_run, 1); |
c906108c | 3295 | |
3947f654 SM |
3296 | cmd_list_element *next_cmd |
3297 | = add_com ("next", class_run, next_command, _("\ | |
1bedd215 | 3298 | Step program, proceeding through subroutine calls.\n\ |
486c7739 MF |
3299 | Usage: next [N]\n\ |
3300 | Unlike \"step\", if the current source line calls a subroutine,\n\ | |
3301 | this command does not enter the subroutine, but instead steps over\n\ | |
dbf6a605 | 3302 | the call, in effect treating it as a single source line.")); |
3947f654 | 3303 | add_com_alias ("n", next_cmd, class_run, 1); |
c906108c | 3304 | |
3947f654 SM |
3305 | cmd_list_element *step_cmd |
3306 | = add_com ("step", class_run, step_command, _("\ | |
1bedd215 | 3307 | Step program until it reaches a different source line.\n\ |
486c7739 MF |
3308 | Usage: step [N]\n\ |
3309 | Argument N means step N times (or till program stops for another \ | |
3e43a32a | 3310 | reason).")); |
3947f654 | 3311 | add_com_alias ("s", step_cmd, class_run, 1); |
c906108c | 3312 | |
3947f654 SM |
3313 | cmd_list_element *until_cmd |
3314 | = add_com ("until", class_run, until_command, _("\ | |
590042fc | 3315 | Execute until past the current line or past a LOCATION.\n\ |
1bedd215 | 3316 | Execute until the program reaches a source line greater than the current\n\ |
3e43a32a MS |
3317 | or a specified location (same args as break command) within the current \ |
3318 | frame.")); | |
3947f654 SM |
3319 | set_cmd_completer (until_cmd, location_completer); |
3320 | add_com_alias ("u", until_cmd, class_run, 1); | |
c5aa993b | 3321 | |
1bedd215 | 3322 | c = add_com ("advance", class_run, advance_command, _("\ |
3e43a32a MS |
3323 | Continue the program up to the given location (same form as args for break \ |
3324 | command).\n\ | |
1bedd215 | 3325 | Execution will also stop upon exit from the current stack frame.")); |
ae66c1fc EZ |
3326 | set_cmd_completer (c, location_completer); |
3327 | ||
3947f654 SM |
3328 | cmd_list_element *jump_cmd |
3329 | = add_com ("jump", class_run, jump_command, _("\ | |
1bedd215 | 3330 | Continue program being debugged at specified line or address.\n\ |
0a8ba311 | 3331 | Usage: jump LOCATION\n\ |
c906108c | 3332 | Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\ |
1bedd215 | 3333 | for an address to start at.")); |
3947f654 SM |
3334 | set_cmd_completer (jump_cmd, location_completer); |
3335 | add_com_alias ("j", jump_cmd, class_run, 1); | |
c906108c | 3336 | |
3947f654 SM |
3337 | cmd_list_element *continue_cmd |
3338 | = add_com ("continue", class_run, continue_command, _("\ | |
1bedd215 | 3339 | Continue program being debugged, after signal or breakpoint.\n\ |
486c7739 | 3340 | Usage: continue [N]\n\ |
c906108c SS |
3341 | If proceeding from breakpoint, a number N may be used as an argument,\n\ |
3342 | which means to set the ignore count of that breakpoint to N - 1 (so that\n\ | |
8cae4b3f PA |
3343 | the breakpoint won't break until the Nth time it is reached).\n\ |
3344 | \n\ | |
3345 | If non-stop mode is enabled, continue only the current thread,\n\ | |
3346 | otherwise all the threads in the program are continued. To \n\ | |
3347 | continue all stopped threads in non-stop mode, use the -a option.\n\ | |
3348 | Specifying -a and an ignore count simultaneously is an error.")); | |
3947f654 SM |
3349 | add_com_alias ("c", continue_cmd, class_run, 1); |
3350 | add_com_alias ("fg", continue_cmd, class_run, 1); | |
c906108c | 3351 | |
3947f654 SM |
3352 | cmd_list_element *run_cmd |
3353 | = add_com ("run", class_run, run_command, _("\ | |
4e5a4f58 JB |
3354 | Start debugged program.\n" |
3355 | RUN_ARGS_HELP)); | |
3947f654 SM |
3356 | set_cmd_completer (run_cmd, filename_completer); |
3357 | add_com_alias ("r", run_cmd, class_run, 1); | |
c906108c | 3358 | |
1bedd215 | 3359 | c = add_com ("start", class_run, start_command, _("\ |
4e5a4f58 JB |
3360 | Start the debugged program stopping at the beginning of the main procedure.\n" |
3361 | RUN_ARGS_HELP)); | |
3362 | set_cmd_completer (c, filename_completer); | |
3363 | ||
3364 | c = add_com ("starti", class_run, starti_command, _("\ | |
3365 | Start the debugged program stopping at the first instruction.\n" | |
3366 | RUN_ARGS_HELP)); | |
a4d5f2e0 JB |
3367 | set_cmd_completer (c, filename_completer); |
3368 | ||
0a07590b | 3369 | add_com ("interrupt", class_run, interrupt_command, |
df983543 | 3370 | _("Interrupt the execution of the debugged program.\n\ |
8cae4b3f PA |
3371 | If non-stop mode is enabled, interrupt only the current thread,\n\ |
3372 | otherwise all the threads in the program are stopped. To \n\ | |
3373 | interrupt all running threads in non-stop mode, use the -a option.")); | |
43ff13b4 | 3374 | |
e0f25bd9 SM |
3375 | cmd_list_element *info_registers_cmd |
3376 | = add_info ("registers", info_registers_command, _("\ | |
1bedd215 | 3377 | List of integer registers and their contents, for selected stack frame.\n\ |
b67d92b0 SH |
3378 | One or more register names as argument means describe the given registers.\n\ |
3379 | One or more register group names as argument means describe the registers\n\ | |
3380 | in the named register groups.")); | |
e0f25bd9 SM |
3381 | add_info_alias ("r", info_registers_cmd, 1); |
3382 | set_cmd_completer (info_registers_cmd, reg_or_group_completer); | |
c906108c | 3383 | |
11db9430 | 3384 | c = add_info ("all-registers", info_all_registers_command, _("\ |
1bedd215 | 3385 | List of all registers and their contents, for selected stack frame.\n\ |
b67d92b0 SH |
3386 | One or more register names as argument means describe the given registers.\n\ |
3387 | One or more register group names as argument means describe the registers\n\ | |
3388 | in the named register groups.")); | |
71c24708 | 3389 | set_cmd_completer (c, reg_or_group_completer); |
c906108c | 3390 | |
11db9430 | 3391 | add_info ("program", info_program_command, |
1bedd215 | 3392 | _("Execution status of the program.")); |
c906108c | 3393 | |
11db9430 | 3394 | add_info ("float", info_float_command, |
590042fc | 3395 | _("Print the status of the floating point unit.")); |
c906108c | 3396 | |
11db9430 | 3397 | add_info ("vector", info_vector_command, |
590042fc | 3398 | _("Print the status of the vector unit.")); |
145b16a9 UW |
3399 | |
3400 | add_prefix_cmd ("proc", class_info, info_proc_cmd, | |
3401 | _("\ | |
73f1bd76 | 3402 | Show additional information about a process.\n\ |
145b16a9 | 3403 | Specify any process id, or use the program being debugged by default."), |
2f822da5 | 3404 | &info_proc_cmdlist, |
145b16a9 UW |
3405 | 1/*allow-unknown*/, &infolist); |
3406 | ||
3407 | add_cmd ("mappings", class_info, info_proc_cmd_mappings, _("\ | |
73f1bd76 | 3408 | List memory regions mapped by the specified process."), |
145b16a9 UW |
3409 | &info_proc_cmdlist); |
3410 | ||
3411 | add_cmd ("stat", class_info, info_proc_cmd_stat, _("\ | |
3412 | List process info from /proc/PID/stat."), | |
3413 | &info_proc_cmdlist); | |
3414 | ||
3415 | add_cmd ("status", class_info, info_proc_cmd_status, _("\ | |
3416 | List process info from /proc/PID/status."), | |
3417 | &info_proc_cmdlist); | |
3418 | ||
3419 | add_cmd ("cwd", class_info, info_proc_cmd_cwd, _("\ | |
73f1bd76 | 3420 | List current working directory of the specified process."), |
145b16a9 UW |
3421 | &info_proc_cmdlist); |
3422 | ||
3423 | add_cmd ("cmdline", class_info, info_proc_cmd_cmdline, _("\ | |
73f1bd76 | 3424 | List command line arguments of the specified process."), |
145b16a9 UW |
3425 | &info_proc_cmdlist); |
3426 | ||
3427 | add_cmd ("exe", class_info, info_proc_cmd_exe, _("\ | |
73f1bd76 | 3428 | List absolute filename for executable of the specified process."), |
145b16a9 UW |
3429 | &info_proc_cmdlist); |
3430 | ||
e98ee8c4 JB |
3431 | add_cmd ("files", class_info, info_proc_cmd_files, _("\ |
3432 | List files opened by the specified process."), | |
3433 | &info_proc_cmdlist); | |
3434 | ||
145b16a9 | 3435 | add_cmd ("all", class_info, info_proc_cmd_all, _("\ |
73f1bd76 | 3436 | List all available info about the specified process."), |
145b16a9 | 3437 | &info_proc_cmdlist); |
000439d5 TT |
3438 | |
3439 | add_setshow_boolean_cmd ("finish", class_support, | |
5ffa6ca3 | 3440 | &finish_print, _("\ |
000439d5 | 3441 | Set whether `finish' prints the return value."), _("\ |
03acd4d8 CL |
3442 | Show whether `finish' prints the return value."), nullptr, |
3443 | nullptr, | |
000439d5 TT |
3444 | show_print_finish, |
3445 | &setprintlist, &showprintlist); | |
c906108c | 3446 | } |