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c906108c | 1 | /* Core dump and executable file functions below target vector, for GDB. |
4646aa9d | 2 | |
42a4f53d | 3 | Copyright (C) 1986-2019 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" | |
d55e5aa6 TT |
21 | |
22 | /* Standard C includes. */ | |
c906108c | 23 | #include <fcntl.h> |
d55e5aa6 TT |
24 | #include <signal.h> |
25 | ||
26 | /* Local non-gdb includes. */ | |
27 | #include "arch-utils.h" | |
c906108c | 28 | #include "bfd.h" |
d55e5aa6 TT |
29 | #include "command.h" |
30 | #include "common/filestuff.h" | |
31 | #include "completer.h" | |
32 | #include "exec.h" | |
33 | #include "filenames.h" | |
34 | #include "frame.h" | |
35 | #include "gdb_bfd.h" | |
c906108c SS |
36 | #include "gdbcore.h" |
37 | #include "gdbthread.h" | |
d55e5aa6 TT |
38 | #include "inferior.h" |
39 | #include "infrun.h" | |
40 | #include "objfiles.h" | |
41 | #include "process-stratum-target.h" | |
42 | #include "progspace.h" | |
43 | #include "readline/readline.h" | |
4e052eda | 44 | #include "regcache.h" |
0e24ac5d | 45 | #include "regset.h" |
a77053c2 | 46 | #include "solib.h" |
d55e5aa6 TT |
47 | #include "symfile.h" |
48 | #include "symtab.h" | |
49 | #include "target.h" | |
8e860359 | 50 | |
ee28ca0f AC |
51 | #ifndef O_LARGEFILE |
52 | #define O_LARGEFILE 0 | |
53 | #endif | |
54 | ||
15244507 PA |
55 | static core_fns *sniff_core_bfd (gdbarch *core_gdbarch, |
56 | bfd *abfd); | |
57 | ||
f6ac5f3d PA |
58 | /* The core file target. */ |
59 | ||
d9f719f1 PA |
60 | static const target_info core_target_info = { |
61 | "core", | |
62 | N_("Local core dump file"), | |
63 | N_("Use a core file as a target. Specify the filename of the core file.") | |
64 | }; | |
65 | ||
3b3dac9b | 66 | class core_target final : public process_stratum_target |
f6ac5f3d PA |
67 | { |
68 | public: | |
15244507 PA |
69 | core_target (); |
70 | ~core_target () override; | |
f6ac5f3d | 71 | |
d9f719f1 PA |
72 | const target_info &info () const override |
73 | { return core_target_info; } | |
f6ac5f3d | 74 | |
f6ac5f3d PA |
75 | void close () override; |
76 | void detach (inferior *, int) override; | |
77 | void fetch_registers (struct regcache *, int) override; | |
78 | ||
79 | enum target_xfer_status xfer_partial (enum target_object object, | |
80 | const char *annex, | |
81 | gdb_byte *readbuf, | |
82 | const gdb_byte *writebuf, | |
83 | ULONGEST offset, ULONGEST len, | |
84 | ULONGEST *xfered_len) override; | |
85 | void files_info () override; | |
86 | ||
57810aa7 | 87 | bool thread_alive (ptid_t ptid) override; |
f6ac5f3d PA |
88 | const struct target_desc *read_description () override; |
89 | ||
a068643d | 90 | std::string pid_to_str (ptid_t) override; |
f6ac5f3d PA |
91 | |
92 | const char *thread_name (struct thread_info *) override; | |
93 | ||
f3d11a9a | 94 | bool has_all_memory () override { return false; } |
57810aa7 PA |
95 | bool has_memory () override; |
96 | bool has_stack () override; | |
97 | bool has_registers () override; | |
f3d11a9a PA |
98 | bool has_execution (ptid_t) override { return false; } |
99 | ||
f6ac5f3d | 100 | bool info_proc (const char *, enum info_proc_what) override; |
f6ac5f3d | 101 | |
15244507 PA |
102 | /* A few helpers. */ |
103 | ||
104 | /* Getter, see variable definition. */ | |
105 | struct gdbarch *core_gdbarch () | |
106 | { | |
107 | return m_core_gdbarch; | |
108 | } | |
109 | ||
110 | /* See definition. */ | |
111 | void get_core_register_section (struct regcache *regcache, | |
112 | const struct regset *regset, | |
113 | const char *name, | |
dbd534fe | 114 | int section_min_size, |
15244507 PA |
115 | int which, |
116 | const char *human_name, | |
117 | bool required); | |
118 | ||
119 | private: /* per-core data */ | |
120 | ||
121 | /* The core's section table. Note that these target sections are | |
122 | *not* mapped in the current address spaces' set of target | |
123 | sections --- those should come only from pure executable or | |
124 | shared library bfds. The core bfd sections are an implementation | |
125 | detail of the core target, just like ptrace is for unix child | |
126 | targets. */ | |
127 | target_section_table m_core_section_table {}; | |
128 | ||
129 | /* The core_fns for a core file handler that is prepared to read the | |
130 | core file currently open on core_bfd. */ | |
131 | core_fns *m_core_vec = NULL; | |
132 | ||
133 | /* FIXME: kettenis/20031023: Eventually this field should | |
134 | disappear. */ | |
135 | struct gdbarch *m_core_gdbarch = NULL; | |
136 | }; | |
c906108c | 137 | |
15244507 PA |
138 | core_target::core_target () |
139 | { | |
15244507 | 140 | m_core_gdbarch = gdbarch_from_bfd (core_bfd); |
2acceee2 | 141 | |
15244507 PA |
142 | /* Find a suitable core file handler to munch on core_bfd */ |
143 | m_core_vec = sniff_core_bfd (m_core_gdbarch, core_bfd); | |
2acceee2 | 144 | |
15244507 PA |
145 | /* Find the data section */ |
146 | if (build_section_table (core_bfd, | |
147 | &m_core_section_table.sections, | |
148 | &m_core_section_table.sections_end)) | |
149 | error (_("\"%s\": Can't find sections: %s"), | |
150 | bfd_get_filename (core_bfd), bfd_errmsg (bfd_get_error ())); | |
151 | } | |
0e24ac5d | 152 | |
15244507 PA |
153 | core_target::~core_target () |
154 | { | |
155 | xfree (m_core_section_table.sections); | |
156 | } | |
0e24ac5d | 157 | |
15244507 PA |
158 | /* List of all available core_fns. On gdb startup, each core file |
159 | register reader calls deprecated_add_core_fns() to register | |
160 | information on each core format it is prepared to read. */ | |
07b82ea5 | 161 | |
15244507 | 162 | static struct core_fns *core_file_fns = NULL; |
2acceee2 | 163 | |
020cc13c | 164 | static int gdb_check_format (bfd *); |
2acceee2 | 165 | |
4efb68b1 | 166 | static void add_to_thread_list (bfd *, asection *, void *); |
c906108c | 167 | |
7f9f62ba PA |
168 | /* An arbitrary identifier for the core inferior. */ |
169 | #define CORELOW_PID 1 | |
170 | ||
aff410f1 MS |
171 | /* Link a new core_fns into the global core_file_fns list. Called on |
172 | gdb startup by the _initialize routine in each core file register | |
b021a221 | 173 | reader, to register information about each format the reader is |
aff410f1 | 174 | prepared to handle. */ |
c906108c SS |
175 | |
176 | void | |
00e32a35 | 177 | deprecated_add_core_fns (struct core_fns *cf) |
c906108c | 178 | { |
c5aa993b | 179 | cf->next = core_file_fns; |
c906108c SS |
180 | core_file_fns = cf; |
181 | } | |
182 | ||
2acceee2 JM |
183 | /* The default function that core file handlers can use to examine a |
184 | core file BFD and decide whether or not to accept the job of | |
aff410f1 | 185 | reading the core file. */ |
2acceee2 JM |
186 | |
187 | int | |
fba45db2 | 188 | default_core_sniffer (struct core_fns *our_fns, bfd *abfd) |
2acceee2 JM |
189 | { |
190 | int result; | |
191 | ||
192 | result = (bfd_get_flavour (abfd) == our_fns -> core_flavour); | |
193 | return (result); | |
194 | } | |
195 | ||
196 | /* Walk through the list of core functions to find a set that can | |
06b9f45f | 197 | handle the core file open on ABFD. Returns pointer to set that is |
aff410f1 | 198 | selected. */ |
2acceee2 JM |
199 | |
200 | static struct core_fns * | |
15244507 | 201 | sniff_core_bfd (struct gdbarch *core_gdbarch, bfd *abfd) |
2acceee2 JM |
202 | { |
203 | struct core_fns *cf; | |
204 | struct core_fns *yummy = NULL; | |
45eba0ab | 205 | int matches = 0; |
2acceee2 | 206 | |
aff410f1 MS |
207 | /* Don't sniff if we have support for register sets in |
208 | CORE_GDBARCH. */ | |
29082443 | 209 | if (core_gdbarch && gdbarch_iterate_over_regset_sections_p (core_gdbarch)) |
0e24ac5d MK |
210 | return NULL; |
211 | ||
2acceee2 JM |
212 | for (cf = core_file_fns; cf != NULL; cf = cf->next) |
213 | { | |
214 | if (cf->core_sniffer (cf, abfd)) | |
215 | { | |
216 | yummy = cf; | |
217 | matches++; | |
218 | } | |
219 | } | |
220 | if (matches > 1) | |
221 | { | |
8a3fe4f8 | 222 | warning (_("\"%s\": ambiguous core format, %d handlers match"), |
2acceee2 JM |
223 | bfd_get_filename (abfd), matches); |
224 | } | |
225 | else if (matches == 0) | |
06b9f45f JK |
226 | error (_("\"%s\": no core file handler recognizes format"), |
227 | bfd_get_filename (abfd)); | |
228 | ||
2acceee2 JM |
229 | return (yummy); |
230 | } | |
231 | ||
232 | /* The default is to reject every core file format we see. Either | |
233 | BFD has to recognize it, or we have to provide a function in the | |
aff410f1 | 234 | core file handler that recognizes it. */ |
2acceee2 JM |
235 | |
236 | int | |
fba45db2 | 237 | default_check_format (bfd *abfd) |
2acceee2 JM |
238 | { |
239 | return (0); | |
240 | } | |
241 | ||
aff410f1 | 242 | /* Attempt to recognize core file formats that BFD rejects. */ |
2acceee2 | 243 | |
020cc13c | 244 | static int |
fba45db2 | 245 | gdb_check_format (bfd *abfd) |
2acceee2 JM |
246 | { |
247 | struct core_fns *cf; | |
248 | ||
249 | for (cf = core_file_fns; cf != NULL; cf = cf->next) | |
250 | { | |
251 | if (cf->check_format (abfd)) | |
252 | { | |
81a9a963 | 253 | return (1); |
2acceee2 JM |
254 | } |
255 | } | |
81a9a963 | 256 | return (0); |
2acceee2 | 257 | } |
c906108c | 258 | |
15244507 | 259 | /* Close the core target. */ |
c906108c | 260 | |
15244507 PA |
261 | void |
262 | core_target::close () | |
c906108c | 263 | { |
c906108c SS |
264 | if (core_bfd) |
265 | { | |
aff410f1 MS |
266 | inferior_ptid = null_ptid; /* Avoid confusion from thread |
267 | stuff. */ | |
00431a78 | 268 | exit_inferior_silent (current_inferior ()); |
c906108c | 269 | |
aff410f1 MS |
270 | /* Clear out solib state while the bfd is still open. See |
271 | comments in clear_solib in solib.c. */ | |
a77053c2 | 272 | clear_solib (); |
7a292a7a | 273 | |
06333fea | 274 | current_program_space->cbfd.reset (nullptr); |
c906108c | 275 | } |
c906108c | 276 | |
15244507 PA |
277 | /* Core targets are heap-allocated (see core_target_open), so here |
278 | we delete ourselves. */ | |
279 | delete this; | |
74b7792f AC |
280 | } |
281 | ||
aff410f1 MS |
282 | /* Look for sections whose names start with `.reg/' so that we can |
283 | extract the list of threads in a core file. */ | |
c906108c SS |
284 | |
285 | static void | |
4efb68b1 | 286 | add_to_thread_list (bfd *abfd, asection *asect, void *reg_sect_arg) |
c906108c | 287 | { |
0de3b513 | 288 | ptid_t ptid; |
3cdd9356 PA |
289 | int core_tid; |
290 | int pid, lwpid; | |
c906108c | 291 | asection *reg_sect = (asection *) reg_sect_arg; |
88f38a04 PA |
292 | int fake_pid_p = 0; |
293 | struct inferior *inf; | |
c906108c | 294 | |
61012eef | 295 | if (!startswith (bfd_section_name (abfd, asect), ".reg/")) |
c906108c SS |
296 | return; |
297 | ||
3cdd9356 | 298 | core_tid = atoi (bfd_section_name (abfd, asect) + 5); |
c906108c | 299 | |
261b8d08 PA |
300 | pid = bfd_core_file_pid (core_bfd); |
301 | if (pid == 0) | |
3cdd9356 | 302 | { |
88f38a04 | 303 | fake_pid_p = 1; |
3cdd9356 | 304 | pid = CORELOW_PID; |
3cdd9356 | 305 | } |
0de3b513 | 306 | |
261b8d08 PA |
307 | lwpid = core_tid; |
308 | ||
88f38a04 PA |
309 | inf = current_inferior (); |
310 | if (inf->pid == 0) | |
311 | { | |
312 | inferior_appeared (inf, pid); | |
313 | inf->fake_pid_p = fake_pid_p; | |
314 | } | |
3cdd9356 | 315 | |
fd79271b | 316 | ptid = ptid_t (pid, lwpid, 0); |
3cdd9356 PA |
317 | |
318 | add_thread (ptid); | |
c906108c SS |
319 | |
320 | /* Warning, Will Robinson, looking at BFD private data! */ | |
321 | ||
322 | if (reg_sect != NULL | |
aff410f1 MS |
323 | && asect->filepos == reg_sect->filepos) /* Did we find .reg? */ |
324 | inferior_ptid = ptid; /* Yes, make it current. */ | |
c906108c SS |
325 | } |
326 | ||
451953fa PA |
327 | /* Issue a message saying we have no core to debug, if FROM_TTY. */ |
328 | ||
329 | static void | |
330 | maybe_say_no_core_file_now (int from_tty) | |
331 | { | |
332 | if (from_tty) | |
333 | printf_filtered (_("No core file now.\n")); | |
334 | } | |
335 | ||
336 | /* Backward compatability with old way of specifying core files. */ | |
337 | ||
338 | void | |
339 | core_file_command (const char *filename, int from_tty) | |
340 | { | |
341 | dont_repeat (); /* Either way, seems bogus. */ | |
342 | ||
343 | if (filename == NULL) | |
344 | { | |
345 | if (core_bfd != NULL) | |
346 | { | |
347 | target_detach (current_inferior (), from_tty); | |
348 | gdb_assert (core_bfd == NULL); | |
349 | } | |
350 | else | |
351 | maybe_say_no_core_file_now (from_tty); | |
352 | } | |
353 | else | |
354 | core_target_open (filename, from_tty); | |
355 | } | |
356 | ||
d9f719f1 | 357 | /* See gdbcore.h. */ |
c906108c | 358 | |
f6ac5f3d | 359 | void |
d9f719f1 | 360 | core_target_open (const char *arg, int from_tty) |
c906108c SS |
361 | { |
362 | const char *p; | |
363 | int siggy; | |
c906108c | 364 | int scratch_chan; |
ee28ca0f | 365 | int flags; |
c906108c SS |
366 | |
367 | target_preopen (from_tty); | |
014f9477 | 368 | if (!arg) |
c906108c | 369 | { |
8a3fe4f8 | 370 | if (core_bfd) |
3e43a32a MS |
371 | error (_("No core file specified. (Use `detach' " |
372 | "to stop debugging a core file.)")); | |
8a3fe4f8 AC |
373 | else |
374 | error (_("No core file specified.")); | |
c906108c SS |
375 | } |
376 | ||
ee0c3293 TT |
377 | gdb::unique_xmalloc_ptr<char> filename (tilde_expand (arg)); |
378 | if (!IS_ABSOLUTE_PATH (filename.get ())) | |
379 | filename.reset (concat (current_directory, "/", | |
380 | filename.get (), (char *) NULL)); | |
c906108c | 381 | |
ee28ca0f AC |
382 | flags = O_BINARY | O_LARGEFILE; |
383 | if (write_files) | |
384 | flags |= O_RDWR; | |
385 | else | |
386 | flags |= O_RDONLY; | |
ee0c3293 | 387 | scratch_chan = gdb_open_cloexec (filename.get (), flags, 0); |
c906108c | 388 | if (scratch_chan < 0) |
ee0c3293 | 389 | perror_with_name (filename.get ()); |
c906108c | 390 | |
ee0c3293 | 391 | gdb_bfd_ref_ptr temp_bfd (gdb_bfd_fopen (filename.get (), gnutarget, |
192b62ce TT |
392 | write_files ? FOPEN_RUB : FOPEN_RB, |
393 | scratch_chan)); | |
c906108c | 394 | if (temp_bfd == NULL) |
ee0c3293 | 395 | perror_with_name (filename.get ()); |
c906108c | 396 | |
192b62ce TT |
397 | if (!bfd_check_format (temp_bfd.get (), bfd_core) |
398 | && !gdb_check_format (temp_bfd.get ())) | |
c906108c SS |
399 | { |
400 | /* Do it after the err msg */ | |
aff410f1 MS |
401 | /* FIXME: should be checking for errors from bfd_close (for one |
402 | thing, on error it does not free all the storage associated | |
403 | with the bfd). */ | |
8a3fe4f8 | 404 | error (_("\"%s\" is not a core dump: %s"), |
ee0c3293 | 405 | filename.get (), bfd_errmsg (bfd_get_error ())); |
c906108c SS |
406 | } |
407 | ||
06333fea | 408 | current_program_space->cbfd = std::move (temp_bfd); |
c906108c | 409 | |
15244507 | 410 | core_target *target = new core_target (); |
0e24ac5d | 411 | |
15244507 PA |
412 | /* Own the target until it is successfully pushed. */ |
413 | target_ops_up target_holder (target); | |
2acceee2 | 414 | |
c906108c SS |
415 | validate_files (); |
416 | ||
2f1b5984 MK |
417 | /* If we have no exec file, try to set the architecture from the |
418 | core file. We don't do this unconditionally since an exec file | |
419 | typically contains more information that helps us determine the | |
420 | architecture than a core file. */ | |
421 | if (!exec_bfd) | |
422 | set_gdbarch_from_file (core_bfd); | |
cbda0a99 | 423 | |
dea57a62 | 424 | push_target (std::move (target_holder)); |
c906108c | 425 | |
3cdd9356 | 426 | inferior_ptid = null_ptid; |
0de3b513 | 427 | |
739fc47a PA |
428 | /* Need to flush the register cache (and the frame cache) from a |
429 | previous debug session. If inferior_ptid ends up the same as the | |
430 | last debug session --- e.g., b foo; run; gcore core1; step; gcore | |
431 | core2; core core1; core core2 --- then there's potential for | |
432 | get_current_regcache to return the cached regcache of the | |
433 | previous session, and the frame cache being stale. */ | |
434 | registers_changed (); | |
435 | ||
0de3b513 PA |
436 | /* Build up thread list from BFD sections, and possibly set the |
437 | current thread to the .reg/NN section matching the .reg | |
aff410f1 | 438 | section. */ |
0de3b513 PA |
439 | bfd_map_over_sections (core_bfd, add_to_thread_list, |
440 | bfd_get_section_by_name (core_bfd, ".reg")); | |
441 | ||
d7e15655 | 442 | if (inferior_ptid == null_ptid) |
3cdd9356 PA |
443 | { |
444 | /* Either we found no .reg/NN section, and hence we have a | |
445 | non-threaded core (single-threaded, from gdb's perspective), | |
446 | or for some reason add_to_thread_list couldn't determine | |
447 | which was the "main" thread. The latter case shouldn't | |
448 | usually happen, but we're dealing with input here, which can | |
449 | always be broken in different ways. */ | |
00431a78 | 450 | thread_info *thread = first_thread_of_inferior (current_inferior ()); |
c5504eaf | 451 | |
3cdd9356 PA |
452 | if (thread == NULL) |
453 | { | |
c45ceae0 | 454 | inferior_appeared (current_inferior (), CORELOW_PID); |
f2907e49 | 455 | inferior_ptid = ptid_t (CORELOW_PID); |
3cdd9356 PA |
456 | add_thread_silent (inferior_ptid); |
457 | } | |
458 | else | |
00431a78 | 459 | switch_to_thread (thread); |
3cdd9356 PA |
460 | } |
461 | ||
15244507 | 462 | post_create_inferior (target, from_tty); |
959b8724 | 463 | |
0de3b513 PA |
464 | /* Now go through the target stack looking for threads since there |
465 | may be a thread_stratum target loaded on top of target core by | |
466 | now. The layer above should claim threads found in the BFD | |
467 | sections. */ | |
492d29ea | 468 | TRY |
8e7b59a5 | 469 | { |
e8032dde | 470 | target_update_thread_list (); |
8e7b59a5 KS |
471 | } |
472 | ||
492d29ea PA |
473 | CATCH (except, RETURN_MASK_ERROR) |
474 | { | |
475 | exception_print (gdb_stderr, except); | |
476 | } | |
477 | END_CATCH | |
0de3b513 | 478 | |
c906108c SS |
479 | p = bfd_core_file_failing_command (core_bfd); |
480 | if (p) | |
a3f17187 | 481 | printf_filtered (_("Core was generated by `%s'.\n"), p); |
c906108c | 482 | |
0c557179 SDJ |
483 | /* Clearing any previous state of convenience variables. */ |
484 | clear_exit_convenience_vars (); | |
485 | ||
c906108c SS |
486 | siggy = bfd_core_file_failing_signal (core_bfd); |
487 | if (siggy > 0) | |
423ec54c | 488 | { |
15244507 PA |
489 | gdbarch *core_gdbarch = target->core_gdbarch (); |
490 | ||
22203bbf | 491 | /* If we don't have a CORE_GDBARCH to work with, assume a native |
1f8cf220 PA |
492 | core (map gdb_signal from host signals). If we do have |
493 | CORE_GDBARCH to work with, but no gdb_signal_from_target | |
494 | implementation for that gdbarch, as a fallback measure, | |
495 | assume the host signal mapping. It'll be correct for native | |
496 | cores, but most likely incorrect for cross-cores. */ | |
2ea28649 | 497 | enum gdb_signal sig = (core_gdbarch != NULL |
1f8cf220 PA |
498 | && gdbarch_gdb_signal_from_target_p (core_gdbarch) |
499 | ? gdbarch_gdb_signal_from_target (core_gdbarch, | |
500 | siggy) | |
501 | : gdb_signal_from_host (siggy)); | |
423ec54c | 502 | |
2d503272 PM |
503 | printf_filtered (_("Program terminated with signal %s, %s.\n"), |
504 | gdb_signal_to_name (sig), gdb_signal_to_string (sig)); | |
0c557179 SDJ |
505 | |
506 | /* Set the value of the internal variable $_exitsignal, | |
507 | which holds the signal uncaught by the inferior. */ | |
508 | set_internalvar_integer (lookup_internalvar ("_exitsignal"), | |
509 | siggy); | |
423ec54c | 510 | } |
c906108c | 511 | |
87ab71f0 PA |
512 | /* Fetch all registers from core file. */ |
513 | target_fetch_registers (get_current_regcache (), -1); | |
c906108c | 514 | |
87ab71f0 PA |
515 | /* Now, set up the frame cache, and print the top of stack. */ |
516 | reinit_frame_cache (); | |
08d72866 | 517 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1); |
f0e8c4c5 JK |
518 | |
519 | /* Current thread should be NUM 1 but the user does not know that. | |
520 | If a program is single threaded gdb in general does not mention | |
521 | anything about threads. That is why the test is >= 2. */ | |
522 | if (thread_count () >= 2) | |
523 | { | |
492d29ea | 524 | TRY |
f0e8c4c5 JK |
525 | { |
526 | thread_command (NULL, from_tty); | |
527 | } | |
492d29ea PA |
528 | CATCH (except, RETURN_MASK_ERROR) |
529 | { | |
530 | exception_print (gdb_stderr, except); | |
531 | } | |
532 | END_CATCH | |
f0e8c4c5 | 533 | } |
c906108c SS |
534 | } |
535 | ||
f6ac5f3d PA |
536 | void |
537 | core_target::detach (inferior *inf, int from_tty) | |
c906108c | 538 | { |
15244507 PA |
539 | /* Note that 'this' is dangling after this call. unpush_target |
540 | closes the target, and our close implementation deletes | |
541 | 'this'. */ | |
f6ac5f3d | 542 | unpush_target (this); |
15244507 | 543 | |
c906108c | 544 | reinit_frame_cache (); |
451953fa | 545 | maybe_say_no_core_file_now (from_tty); |
c906108c SS |
546 | } |
547 | ||
de57eccd | 548 | /* Try to retrieve registers from a section in core_bfd, and supply |
15244507 PA |
549 | them to m_core_vec->core_read_registers, as the register set |
550 | numbered WHICH. | |
de57eccd | 551 | |
11a33714 SM |
552 | If ptid's lwp member is zero, do the single-threaded |
553 | thing: look for a section named NAME. If ptid's lwp | |
0de3b513 PA |
554 | member is non-zero, do the multi-threaded thing: look for a section |
555 | named "NAME/LWP", where LWP is the shortest ASCII decimal | |
11a33714 | 556 | representation of ptid's lwp member. |
de57eccd JM |
557 | |
558 | HUMAN_NAME is a human-readable name for the kind of registers the | |
559 | NAME section contains, for use in error messages. | |
560 | ||
15244507 PA |
561 | If REQUIRED is true, print an error if the core file doesn't have a |
562 | section by the appropriate name. Otherwise, just do nothing. */ | |
de57eccd | 563 | |
15244507 PA |
564 | void |
565 | core_target::get_core_register_section (struct regcache *regcache, | |
566 | const struct regset *regset, | |
567 | const char *name, | |
dbd534fe | 568 | int section_min_size, |
15244507 PA |
569 | int which, |
570 | const char *human_name, | |
571 | bool required) | |
de57eccd | 572 | { |
7be0c536 | 573 | struct bfd_section *section; |
de57eccd JM |
574 | bfd_size_type size; |
575 | char *contents; | |
874a1c8c AT |
576 | bool variable_size_section = (regset != NULL |
577 | && regset->flags & REGSET_VARIABLE_SIZE); | |
de57eccd | 578 | |
3c3ae77e | 579 | thread_section_name section_name (name, regcache->ptid ()); |
de57eccd | 580 | |
3c3ae77e | 581 | section = bfd_get_section_by_name (core_bfd, section_name.c_str ()); |
de57eccd JM |
582 | if (! section) |
583 | { | |
584 | if (required) | |
aff410f1 MS |
585 | warning (_("Couldn't find %s registers in core file."), |
586 | human_name); | |
de57eccd JM |
587 | return; |
588 | } | |
589 | ||
590 | size = bfd_section_size (core_bfd, section); | |
dbd534fe | 591 | if (size < section_min_size) |
8f0435f7 | 592 | { |
3c3ae77e PA |
593 | warning (_("Section `%s' in core file too small."), |
594 | section_name.c_str ()); | |
8f0435f7 AA |
595 | return; |
596 | } | |
dbd534fe | 597 | if (size != section_min_size && !variable_size_section) |
f962539a AA |
598 | { |
599 | warning (_("Unexpected size of section `%s' in core file."), | |
3c3ae77e | 600 | section_name.c_str ()); |
f962539a | 601 | } |
8f0435f7 | 602 | |
224c3ddb | 603 | contents = (char *) alloca (size); |
de57eccd JM |
604 | if (! bfd_get_section_contents (core_bfd, section, contents, |
605 | (file_ptr) 0, size)) | |
606 | { | |
8a3fe4f8 | 607 | warning (_("Couldn't read %s registers from `%s' section in core file."), |
3c3ae77e | 608 | human_name, section_name.c_str ()); |
de57eccd JM |
609 | return; |
610 | } | |
611 | ||
8f0435f7 AA |
612 | if (regset != NULL) |
613 | { | |
9eefc95f | 614 | regset->supply_regset (regset, regcache, -1, contents, size); |
0e24ac5d MK |
615 | return; |
616 | } | |
617 | ||
15244507 PA |
618 | gdb_assert (m_core_vec != nullptr); |
619 | m_core_vec->core_read_registers (regcache, contents, size, which, | |
620 | ((CORE_ADDR) | |
621 | bfd_section_vma (core_bfd, section))); | |
de57eccd JM |
622 | } |
623 | ||
15244507 PA |
624 | /* Data passed to gdbarch_iterate_over_regset_sections's callback. */ |
625 | struct get_core_registers_cb_data | |
626 | { | |
627 | core_target *target; | |
628 | struct regcache *regcache; | |
629 | }; | |
630 | ||
5aa82d05 AA |
631 | /* Callback for get_core_registers that handles a single core file |
632 | register note section. */ | |
633 | ||
634 | static void | |
a616bb94 | 635 | get_core_registers_cb (const char *sect_name, int supply_size, int collect_size, |
8f0435f7 | 636 | const struct regset *regset, |
5aa82d05 AA |
637 | const char *human_name, void *cb_data) |
638 | { | |
15244507 PA |
639 | auto *data = (get_core_registers_cb_data *) cb_data; |
640 | bool required = false; | |
a616bb94 AH |
641 | bool variable_size_section = (regset != NULL |
642 | && regset->flags & REGSET_VARIABLE_SIZE); | |
643 | ||
644 | if (!variable_size_section) | |
645 | gdb_assert (supply_size == collect_size); | |
5aa82d05 AA |
646 | |
647 | if (strcmp (sect_name, ".reg") == 0) | |
8f0435f7 | 648 | { |
15244507 | 649 | required = true; |
8f0435f7 AA |
650 | if (human_name == NULL) |
651 | human_name = "general-purpose"; | |
652 | } | |
5aa82d05 | 653 | else if (strcmp (sect_name, ".reg2") == 0) |
8f0435f7 AA |
654 | { |
655 | if (human_name == NULL) | |
656 | human_name = "floating-point"; | |
657 | } | |
658 | ||
659 | /* The 'which' parameter is only used when no regset is provided. | |
660 | Thus we just set it to -1. */ | |
15244507 | 661 | data->target->get_core_register_section (data->regcache, regset, sect_name, |
a616bb94 AH |
662 | supply_size, -1, human_name, |
663 | required); | |
5aa82d05 | 664 | } |
de57eccd | 665 | |
c906108c SS |
666 | /* Get the registers out of a core file. This is the machine- |
667 | independent part. Fetch_core_registers is the machine-dependent | |
aff410f1 MS |
668 | part, typically implemented in the xm-file for each |
669 | architecture. */ | |
c906108c SS |
670 | |
671 | /* We just get all the registers, so we don't use regno. */ | |
672 | ||
f6ac5f3d PA |
673 | void |
674 | core_target::fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 675 | { |
9c5ea4d9 | 676 | int i; |
5aa82d05 | 677 | struct gdbarch *gdbarch; |
c906108c | 678 | |
15244507 PA |
679 | if (!(m_core_gdbarch != nullptr |
680 | && gdbarch_iterate_over_regset_sections_p (m_core_gdbarch)) | |
681 | && (m_core_vec == NULL || m_core_vec->core_read_registers == NULL)) | |
c906108c SS |
682 | { |
683 | fprintf_filtered (gdb_stderr, | |
c5aa993b | 684 | "Can't fetch registers from this type of core file\n"); |
c906108c SS |
685 | return; |
686 | } | |
687 | ||
ac7936df | 688 | gdbarch = regcache->arch (); |
5aa82d05 | 689 | if (gdbarch_iterate_over_regset_sections_p (gdbarch)) |
15244507 PA |
690 | { |
691 | get_core_registers_cb_data data = { this, regcache }; | |
692 | gdbarch_iterate_over_regset_sections (gdbarch, | |
693 | get_core_registers_cb, | |
694 | (void *) &data, NULL); | |
695 | } | |
1b1818e4 UW |
696 | else |
697 | { | |
8f0435f7 AA |
698 | get_core_register_section (regcache, NULL, |
699 | ".reg", 0, 0, "general-purpose", 1); | |
700 | get_core_register_section (regcache, NULL, | |
701 | ".reg2", 0, 2, "floating-point", 0); | |
1b1818e4 | 702 | } |
c906108c | 703 | |
ee99023e | 704 | /* Mark all registers not found in the core as unavailable. */ |
ac7936df | 705 | for (i = 0; i < gdbarch_num_regs (regcache->arch ()); i++) |
0ec9f114 | 706 | if (regcache->get_register_status (i) == REG_UNKNOWN) |
73e1c03f | 707 | regcache->raw_supply (i, NULL); |
c906108c SS |
708 | } |
709 | ||
f6ac5f3d PA |
710 | void |
711 | core_target::files_info () | |
c906108c | 712 | { |
15244507 | 713 | print_section_info (&m_core_section_table, core_bfd); |
c906108c | 714 | } |
e2544d02 | 715 | \f |
efcbbd14 UW |
716 | struct spuid_list |
717 | { | |
718 | gdb_byte *buf; | |
719 | ULONGEST offset; | |
720 | LONGEST len; | |
721 | ULONGEST pos; | |
722 | ULONGEST written; | |
723 | }; | |
724 | ||
725 | static void | |
726 | add_to_spuid_list (bfd *abfd, asection *asect, void *list_p) | |
727 | { | |
9a3c8263 | 728 | struct spuid_list *list = (struct spuid_list *) list_p; |
efcbbd14 | 729 | enum bfd_endian byte_order |
aff410f1 | 730 | = bfd_big_endian (abfd) ? BFD_ENDIAN_BIG : BFD_ENDIAN_LITTLE; |
efcbbd14 UW |
731 | int fd, pos = 0; |
732 | ||
733 | sscanf (bfd_section_name (abfd, asect), "SPU/%d/regs%n", &fd, &pos); | |
734 | if (pos == 0) | |
735 | return; | |
736 | ||
737 | if (list->pos >= list->offset && list->pos + 4 <= list->offset + list->len) | |
738 | { | |
739 | store_unsigned_integer (list->buf + list->pos - list->offset, | |
740 | 4, byte_order, fd); | |
741 | list->written += 4; | |
742 | } | |
743 | list->pos += 4; | |
744 | } | |
745 | ||
f6ac5f3d PA |
746 | enum target_xfer_status |
747 | core_target::xfer_partial (enum target_object object, const char *annex, | |
748 | gdb_byte *readbuf, const gdb_byte *writebuf, | |
749 | ULONGEST offset, ULONGEST len, ULONGEST *xfered_len) | |
e2544d02 RM |
750 | { |
751 | switch (object) | |
752 | { | |
753 | case TARGET_OBJECT_MEMORY: | |
15244507 PA |
754 | return (section_table_xfer_memory_partial |
755 | (readbuf, writebuf, | |
756 | offset, len, xfered_len, | |
757 | m_core_section_table.sections, | |
758 | m_core_section_table.sections_end, | |
759 | NULL)); | |
e2544d02 RM |
760 | |
761 | case TARGET_OBJECT_AUXV: | |
762 | if (readbuf) | |
763 | { | |
764 | /* When the aux vector is stored in core file, BFD | |
765 | represents this with a fake section called ".auxv". */ | |
766 | ||
c4c5b7ba | 767 | struct bfd_section *section; |
e2544d02 | 768 | bfd_size_type size; |
e2544d02 RM |
769 | |
770 | section = bfd_get_section_by_name (core_bfd, ".auxv"); | |
771 | if (section == NULL) | |
2ed4b548 | 772 | return TARGET_XFER_E_IO; |
e2544d02 RM |
773 | |
774 | size = bfd_section_size (core_bfd, section); | |
775 | if (offset >= size) | |
9b409511 | 776 | return TARGET_XFER_EOF; |
e2544d02 RM |
777 | size -= offset; |
778 | if (size > len) | |
779 | size = len; | |
9b409511 YQ |
780 | |
781 | if (size == 0) | |
782 | return TARGET_XFER_EOF; | |
783 | if (!bfd_get_section_contents (core_bfd, section, readbuf, | |
784 | (file_ptr) offset, size)) | |
e2544d02 | 785 | { |
8a3fe4f8 | 786 | warning (_("Couldn't read NT_AUXV note in core file.")); |
2ed4b548 | 787 | return TARGET_XFER_E_IO; |
e2544d02 RM |
788 | } |
789 | ||
9b409511 YQ |
790 | *xfered_len = (ULONGEST) size; |
791 | return TARGET_XFER_OK; | |
e2544d02 | 792 | } |
2ed4b548 | 793 | return TARGET_XFER_E_IO; |
e2544d02 | 794 | |
403e1656 MK |
795 | case TARGET_OBJECT_WCOOKIE: |
796 | if (readbuf) | |
797 | { | |
798 | /* When the StackGhost cookie is stored in core file, BFD | |
aff410f1 MS |
799 | represents this with a fake section called |
800 | ".wcookie". */ | |
403e1656 MK |
801 | |
802 | struct bfd_section *section; | |
803 | bfd_size_type size; | |
403e1656 MK |
804 | |
805 | section = bfd_get_section_by_name (core_bfd, ".wcookie"); | |
806 | if (section == NULL) | |
2ed4b548 | 807 | return TARGET_XFER_E_IO; |
403e1656 MK |
808 | |
809 | size = bfd_section_size (core_bfd, section); | |
810 | if (offset >= size) | |
96c4f946 | 811 | return TARGET_XFER_EOF; |
403e1656 MK |
812 | size -= offset; |
813 | if (size > len) | |
814 | size = len; | |
9b409511 YQ |
815 | |
816 | if (size == 0) | |
817 | return TARGET_XFER_EOF; | |
818 | if (!bfd_get_section_contents (core_bfd, section, readbuf, | |
819 | (file_ptr) offset, size)) | |
403e1656 | 820 | { |
8a3fe4f8 | 821 | warning (_("Couldn't read StackGhost cookie in core file.")); |
2ed4b548 | 822 | return TARGET_XFER_E_IO; |
403e1656 MK |
823 | } |
824 | ||
9b409511 YQ |
825 | *xfered_len = (ULONGEST) size; |
826 | return TARGET_XFER_OK; | |
827 | ||
403e1656 | 828 | } |
2ed4b548 | 829 | return TARGET_XFER_E_IO; |
403e1656 | 830 | |
de584861 | 831 | case TARGET_OBJECT_LIBRARIES: |
15244507 PA |
832 | if (m_core_gdbarch != nullptr |
833 | && gdbarch_core_xfer_shared_libraries_p (m_core_gdbarch)) | |
de584861 PA |
834 | { |
835 | if (writebuf) | |
2ed4b548 | 836 | return TARGET_XFER_E_IO; |
9b409511 YQ |
837 | else |
838 | { | |
15244507 | 839 | *xfered_len = gdbarch_core_xfer_shared_libraries (m_core_gdbarch, |
9b409511 YQ |
840 | readbuf, |
841 | offset, len); | |
842 | ||
843 | if (*xfered_len == 0) | |
844 | return TARGET_XFER_EOF; | |
845 | else | |
846 | return TARGET_XFER_OK; | |
847 | } | |
de584861 PA |
848 | } |
849 | /* FALL THROUGH */ | |
850 | ||
356a5233 | 851 | case TARGET_OBJECT_LIBRARIES_AIX: |
15244507 PA |
852 | if (m_core_gdbarch != nullptr |
853 | && gdbarch_core_xfer_shared_libraries_aix_p (m_core_gdbarch)) | |
356a5233 JB |
854 | { |
855 | if (writebuf) | |
2ed4b548 | 856 | return TARGET_XFER_E_IO; |
9b409511 YQ |
857 | else |
858 | { | |
859 | *xfered_len | |
15244507 | 860 | = gdbarch_core_xfer_shared_libraries_aix (m_core_gdbarch, |
9b409511 YQ |
861 | readbuf, offset, |
862 | len); | |
863 | ||
864 | if (*xfered_len == 0) | |
865 | return TARGET_XFER_EOF; | |
866 | else | |
867 | return TARGET_XFER_OK; | |
868 | } | |
356a5233 JB |
869 | } |
870 | /* FALL THROUGH */ | |
871 | ||
efcbbd14 UW |
872 | case TARGET_OBJECT_SPU: |
873 | if (readbuf && annex) | |
874 | { | |
875 | /* When the SPU contexts are stored in a core file, BFD | |
aff410f1 MS |
876 | represents this with a fake section called |
877 | "SPU/<annex>". */ | |
efcbbd14 UW |
878 | |
879 | struct bfd_section *section; | |
880 | bfd_size_type size; | |
efcbbd14 | 881 | char sectionstr[100]; |
c5504eaf | 882 | |
efcbbd14 UW |
883 | xsnprintf (sectionstr, sizeof sectionstr, "SPU/%s", annex); |
884 | ||
885 | section = bfd_get_section_by_name (core_bfd, sectionstr); | |
886 | if (section == NULL) | |
2ed4b548 | 887 | return TARGET_XFER_E_IO; |
efcbbd14 UW |
888 | |
889 | size = bfd_section_size (core_bfd, section); | |
890 | if (offset >= size) | |
9b409511 | 891 | return TARGET_XFER_EOF; |
efcbbd14 UW |
892 | size -= offset; |
893 | if (size > len) | |
894 | size = len; | |
9b409511 YQ |
895 | |
896 | if (size == 0) | |
897 | return TARGET_XFER_EOF; | |
898 | if (!bfd_get_section_contents (core_bfd, section, readbuf, | |
899 | (file_ptr) offset, size)) | |
efcbbd14 UW |
900 | { |
901 | warning (_("Couldn't read SPU section in core file.")); | |
2ed4b548 | 902 | return TARGET_XFER_E_IO; |
efcbbd14 UW |
903 | } |
904 | ||
9b409511 YQ |
905 | *xfered_len = (ULONGEST) size; |
906 | return TARGET_XFER_OK; | |
efcbbd14 UW |
907 | } |
908 | else if (readbuf) | |
909 | { | |
910 | /* NULL annex requests list of all present spuids. */ | |
911 | struct spuid_list list; | |
c5504eaf | 912 | |
efcbbd14 UW |
913 | list.buf = readbuf; |
914 | list.offset = offset; | |
915 | list.len = len; | |
916 | list.pos = 0; | |
917 | list.written = 0; | |
918 | bfd_map_over_sections (core_bfd, add_to_spuid_list, &list); | |
9b409511 YQ |
919 | |
920 | if (list.written == 0) | |
921 | return TARGET_XFER_EOF; | |
922 | else | |
923 | { | |
924 | *xfered_len = (ULONGEST) list.written; | |
925 | return TARGET_XFER_OK; | |
926 | } | |
efcbbd14 | 927 | } |
2ed4b548 | 928 | return TARGET_XFER_E_IO; |
efcbbd14 | 929 | |
9015683b TT |
930 | case TARGET_OBJECT_SIGNAL_INFO: |
931 | if (readbuf) | |
9b409511 | 932 | { |
15244507 PA |
933 | if (m_core_gdbarch != nullptr |
934 | && gdbarch_core_xfer_siginfo_p (m_core_gdbarch)) | |
9b409511 | 935 | { |
15244507 | 936 | LONGEST l = gdbarch_core_xfer_siginfo (m_core_gdbarch, readbuf, |
382b69bb JB |
937 | offset, len); |
938 | ||
939 | if (l >= 0) | |
940 | { | |
941 | *xfered_len = l; | |
942 | if (l == 0) | |
943 | return TARGET_XFER_EOF; | |
944 | else | |
945 | return TARGET_XFER_OK; | |
946 | } | |
9b409511 YQ |
947 | } |
948 | } | |
2ed4b548 | 949 | return TARGET_XFER_E_IO; |
9015683b | 950 | |
e2544d02 | 951 | default: |
b6a8c27b PA |
952 | return this->beneath ()->xfer_partial (object, annex, readbuf, |
953 | writebuf, offset, len, | |
954 | xfered_len); | |
e2544d02 RM |
955 | } |
956 | } | |
957 | ||
c906108c | 958 | \f |
c906108c SS |
959 | |
960 | /* Okay, let's be honest: threads gleaned from a core file aren't | |
961 | exactly lively, are they? On the other hand, if we don't claim | |
962 | that each & every one is alive, then we don't get any of them | |
963 | to appear in an "info thread" command, which is quite a useful | |
964 | behaviour. | |
c5aa993b | 965 | */ |
57810aa7 | 966 | bool |
f6ac5f3d | 967 | core_target::thread_alive (ptid_t ptid) |
c906108c | 968 | { |
57810aa7 | 969 | return true; |
c906108c SS |
970 | } |
971 | ||
4eb0ad19 DJ |
972 | /* Ask the current architecture what it knows about this core file. |
973 | That will be used, in turn, to pick a better architecture. This | |
974 | wrapper could be avoided if targets got a chance to specialize | |
15244507 | 975 | core_target. */ |
4eb0ad19 | 976 | |
f6ac5f3d PA |
977 | const struct target_desc * |
978 | core_target::read_description () | |
4eb0ad19 | 979 | { |
15244507 | 980 | if (m_core_gdbarch && gdbarch_core_read_description_p (m_core_gdbarch)) |
2117c711 TT |
981 | { |
982 | const struct target_desc *result; | |
983 | ||
15244507 | 984 | result = gdbarch_core_read_description (m_core_gdbarch, this, core_bfd); |
2117c711 TT |
985 | if (result != NULL) |
986 | return result; | |
987 | } | |
4eb0ad19 | 988 | |
b6a8c27b | 989 | return this->beneath ()->read_description (); |
4eb0ad19 DJ |
990 | } |
991 | ||
a068643d | 992 | std::string |
f6ac5f3d | 993 | core_target::pid_to_str (ptid_t ptid) |
0de3b513 | 994 | { |
88f38a04 | 995 | struct inferior *inf; |
a5ee0f0c | 996 | int pid; |
0de3b513 | 997 | |
a5ee0f0c PA |
998 | /* The preferred way is to have a gdbarch/OS specific |
999 | implementation. */ | |
15244507 PA |
1000 | if (m_core_gdbarch != nullptr |
1001 | && gdbarch_core_pid_to_str_p (m_core_gdbarch)) | |
1002 | return gdbarch_core_pid_to_str (m_core_gdbarch, ptid); | |
c5504eaf | 1003 | |
a5ee0f0c PA |
1004 | /* Otherwise, if we don't have one, we'll just fallback to |
1005 | "process", with normal_pid_to_str. */ | |
28439f5e | 1006 | |
a5ee0f0c | 1007 | /* Try the LWPID field first. */ |
e38504b3 | 1008 | pid = ptid.lwp (); |
a5ee0f0c | 1009 | if (pid != 0) |
f2907e49 | 1010 | return normal_pid_to_str (ptid_t (pid)); |
a5ee0f0c PA |
1011 | |
1012 | /* Otherwise, this isn't a "threaded" core -- use the PID field, but | |
1013 | only if it isn't a fake PID. */ | |
c9657e70 | 1014 | inf = find_inferior_ptid (ptid); |
88f38a04 | 1015 | if (inf != NULL && !inf->fake_pid_p) |
a5ee0f0c | 1016 | return normal_pid_to_str (ptid); |
0de3b513 | 1017 | |
a5ee0f0c | 1018 | /* No luck. We simply don't have a valid PID to print. */ |
a068643d | 1019 | return "<main task>"; |
0de3b513 PA |
1020 | } |
1021 | ||
f6ac5f3d PA |
1022 | const char * |
1023 | core_target::thread_name (struct thread_info *thr) | |
4dfc5dbc | 1024 | { |
15244507 PA |
1025 | if (m_core_gdbarch != nullptr |
1026 | && gdbarch_core_thread_name_p (m_core_gdbarch)) | |
1027 | return gdbarch_core_thread_name (m_core_gdbarch, thr); | |
4dfc5dbc JB |
1028 | return NULL; |
1029 | } | |
1030 | ||
57810aa7 | 1031 | bool |
f6ac5f3d | 1032 | core_target::has_memory () |
c35b1492 PA |
1033 | { |
1034 | return (core_bfd != NULL); | |
1035 | } | |
1036 | ||
57810aa7 | 1037 | bool |
f6ac5f3d | 1038 | core_target::has_stack () |
c35b1492 PA |
1039 | { |
1040 | return (core_bfd != NULL); | |
1041 | } | |
1042 | ||
57810aa7 | 1043 | bool |
f6ac5f3d | 1044 | core_target::has_registers () |
c35b1492 PA |
1045 | { |
1046 | return (core_bfd != NULL); | |
1047 | } | |
1048 | ||
451b7c33 TT |
1049 | /* Implement the to_info_proc method. */ |
1050 | ||
f6ac5f3d PA |
1051 | bool |
1052 | core_target::info_proc (const char *args, enum info_proc_what request) | |
451b7c33 TT |
1053 | { |
1054 | struct gdbarch *gdbarch = get_current_arch (); | |
1055 | ||
1056 | /* Since this is the core file target, call the 'core_info_proc' | |
1057 | method on gdbarch, not 'info_proc'. */ | |
1058 | if (gdbarch_core_info_proc_p (gdbarch)) | |
1059 | gdbarch_core_info_proc (gdbarch, args, request); | |
c906108c | 1060 | |
f6ac5f3d | 1061 | return true; |
c906108c SS |
1062 | } |
1063 | ||
c906108c | 1064 | void |
fba45db2 | 1065 | _initialize_corelow (void) |
c906108c | 1066 | { |
d9f719f1 | 1067 | add_target (core_target_info, core_target_open, filename_completer); |
c906108c | 1068 | } |