Commit | Line | Data |
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c906108c | 1 | /* Core dump and executable file functions below target vector, for GDB. |
4646aa9d | 2 | |
e2882c85 | 3 | Copyright (C) 1986-2018 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" | |
0e24ac5d | 21 | #include "arch-utils.h" |
c906108c SS |
22 | #include <signal.h> |
23 | #include <fcntl.h> | |
fc24370e MS |
24 | #ifdef HAVE_SYS_FILE_H |
25 | #include <sys/file.h> /* needed for F_OK and friends */ | |
26 | #endif | |
c5aa993b | 27 | #include "frame.h" /* required by inferior.h */ |
c906108c | 28 | #include "inferior.h" |
45741a9c | 29 | #include "infrun.h" |
c906108c SS |
30 | #include "symtab.h" |
31 | #include "command.h" | |
32 | #include "bfd.h" | |
33 | #include "target.h" | |
34 | #include "gdbcore.h" | |
35 | #include "gdbthread.h" | |
4e052eda | 36 | #include "regcache.h" |
0e24ac5d | 37 | #include "regset.h" |
990f9fe3 | 38 | #include "symfile.h" |
4646aa9d | 39 | #include "exec.h" |
dbda9972 | 40 | #include "readline/readline.h" |
a77053c2 | 41 | #include "solib.h" |
f90c07ac | 42 | #include "filenames.h" |
6c95b8df | 43 | #include "progspace.h" |
516ba659 | 44 | #include "objfiles.h" |
cbb099e8 | 45 | #include "gdb_bfd.h" |
9852c492 | 46 | #include "completer.h" |
614c279d | 47 | #include "filestuff.h" |
8e860359 | 48 | |
ee28ca0f AC |
49 | #ifndef O_LARGEFILE |
50 | #define O_LARGEFILE 0 | |
51 | #endif | |
52 | ||
15244507 PA |
53 | static core_fns *sniff_core_bfd (gdbarch *core_gdbarch, |
54 | bfd *abfd); | |
55 | ||
f6ac5f3d PA |
56 | /* The core file target. */ |
57 | ||
d9f719f1 PA |
58 | static const target_info core_target_info = { |
59 | "core", | |
60 | N_("Local core dump file"), | |
61 | N_("Use a core file as a target. Specify the filename of the core file.") | |
62 | }; | |
63 | ||
f6ac5f3d PA |
64 | class core_target final : public target_ops |
65 | { | |
66 | public: | |
15244507 PA |
67 | core_target (); |
68 | ~core_target () override; | |
f6ac5f3d | 69 | |
d9f719f1 PA |
70 | const target_info &info () const override |
71 | { return core_target_info; } | |
f6ac5f3d | 72 | |
f6ac5f3d PA |
73 | void close () override; |
74 | void detach (inferior *, int) override; | |
75 | void fetch_registers (struct regcache *, int) override; | |
76 | ||
77 | enum target_xfer_status xfer_partial (enum target_object object, | |
78 | const char *annex, | |
79 | gdb_byte *readbuf, | |
80 | const gdb_byte *writebuf, | |
81 | ULONGEST offset, ULONGEST len, | |
82 | ULONGEST *xfered_len) override; | |
83 | void files_info () override; | |
84 | ||
57810aa7 | 85 | bool thread_alive (ptid_t ptid) override; |
f6ac5f3d PA |
86 | const struct target_desc *read_description () override; |
87 | ||
88 | const char *pid_to_str (ptid_t) override; | |
89 | ||
90 | const char *thread_name (struct thread_info *) override; | |
91 | ||
57810aa7 PA |
92 | bool has_memory () override; |
93 | bool has_stack () override; | |
94 | bool has_registers () override; | |
f6ac5f3d | 95 | bool info_proc (const char *, enum info_proc_what) override; |
f6ac5f3d | 96 | |
15244507 PA |
97 | /* A few helpers. */ |
98 | ||
99 | /* Getter, see variable definition. */ | |
100 | struct gdbarch *core_gdbarch () | |
101 | { | |
102 | return m_core_gdbarch; | |
103 | } | |
104 | ||
105 | /* See definition. */ | |
106 | void get_core_register_section (struct regcache *regcache, | |
107 | const struct regset *regset, | |
108 | const char *name, | |
109 | int min_size, | |
110 | int which, | |
111 | const char *human_name, | |
112 | bool required); | |
113 | ||
114 | private: /* per-core data */ | |
115 | ||
116 | /* The core's section table. Note that these target sections are | |
117 | *not* mapped in the current address spaces' set of target | |
118 | sections --- those should come only from pure executable or | |
119 | shared library bfds. The core bfd sections are an implementation | |
120 | detail of the core target, just like ptrace is for unix child | |
121 | targets. */ | |
122 | target_section_table m_core_section_table {}; | |
123 | ||
124 | /* The core_fns for a core file handler that is prepared to read the | |
125 | core file currently open on core_bfd. */ | |
126 | core_fns *m_core_vec = NULL; | |
127 | ||
128 | /* FIXME: kettenis/20031023: Eventually this field should | |
129 | disappear. */ | |
130 | struct gdbarch *m_core_gdbarch = NULL; | |
131 | }; | |
c906108c | 132 | |
15244507 PA |
133 | core_target::core_target () |
134 | { | |
135 | to_stratum = process_stratum; | |
c906108c | 136 | |
15244507 | 137 | m_core_gdbarch = gdbarch_from_bfd (core_bfd); |
2acceee2 | 138 | |
15244507 PA |
139 | /* Find a suitable core file handler to munch on core_bfd */ |
140 | m_core_vec = sniff_core_bfd (m_core_gdbarch, core_bfd); | |
2acceee2 | 141 | |
15244507 PA |
142 | /* Find the data section */ |
143 | if (build_section_table (core_bfd, | |
144 | &m_core_section_table.sections, | |
145 | &m_core_section_table.sections_end)) | |
146 | error (_("\"%s\": Can't find sections: %s"), | |
147 | bfd_get_filename (core_bfd), bfd_errmsg (bfd_get_error ())); | |
148 | } | |
0e24ac5d | 149 | |
15244507 PA |
150 | core_target::~core_target () |
151 | { | |
152 | xfree (m_core_section_table.sections); | |
153 | } | |
0e24ac5d | 154 | |
15244507 PA |
155 | /* List of all available core_fns. On gdb startup, each core file |
156 | register reader calls deprecated_add_core_fns() to register | |
157 | information on each core format it is prepared to read. */ | |
07b82ea5 | 158 | |
15244507 | 159 | static struct core_fns *core_file_fns = NULL; |
2acceee2 | 160 | |
020cc13c | 161 | static int gdb_check_format (bfd *); |
2acceee2 | 162 | |
4efb68b1 | 163 | static void add_to_thread_list (bfd *, asection *, void *); |
c906108c | 164 | |
7f9f62ba PA |
165 | /* An arbitrary identifier for the core inferior. */ |
166 | #define CORELOW_PID 1 | |
167 | ||
aff410f1 MS |
168 | /* Link a new core_fns into the global core_file_fns list. Called on |
169 | gdb startup by the _initialize routine in each core file register | |
b021a221 | 170 | reader, to register information about each format the reader is |
aff410f1 | 171 | prepared to handle. */ |
c906108c SS |
172 | |
173 | void | |
00e32a35 | 174 | deprecated_add_core_fns (struct core_fns *cf) |
c906108c | 175 | { |
c5aa993b | 176 | cf->next = core_file_fns; |
c906108c SS |
177 | core_file_fns = cf; |
178 | } | |
179 | ||
2acceee2 JM |
180 | /* The default function that core file handlers can use to examine a |
181 | core file BFD and decide whether or not to accept the job of | |
aff410f1 | 182 | reading the core file. */ |
2acceee2 JM |
183 | |
184 | int | |
fba45db2 | 185 | default_core_sniffer (struct core_fns *our_fns, bfd *abfd) |
2acceee2 JM |
186 | { |
187 | int result; | |
188 | ||
189 | result = (bfd_get_flavour (abfd) == our_fns -> core_flavour); | |
190 | return (result); | |
191 | } | |
192 | ||
193 | /* Walk through the list of core functions to find a set that can | |
06b9f45f | 194 | handle the core file open on ABFD. Returns pointer to set that is |
aff410f1 | 195 | selected. */ |
2acceee2 JM |
196 | |
197 | static struct core_fns * | |
15244507 | 198 | sniff_core_bfd (struct gdbarch *core_gdbarch, bfd *abfd) |
2acceee2 JM |
199 | { |
200 | struct core_fns *cf; | |
201 | struct core_fns *yummy = NULL; | |
45eba0ab | 202 | int matches = 0; |
2acceee2 | 203 | |
aff410f1 MS |
204 | /* Don't sniff if we have support for register sets in |
205 | CORE_GDBARCH. */ | |
29082443 | 206 | if (core_gdbarch && gdbarch_iterate_over_regset_sections_p (core_gdbarch)) |
0e24ac5d MK |
207 | return NULL; |
208 | ||
2acceee2 JM |
209 | for (cf = core_file_fns; cf != NULL; cf = cf->next) |
210 | { | |
211 | if (cf->core_sniffer (cf, abfd)) | |
212 | { | |
213 | yummy = cf; | |
214 | matches++; | |
215 | } | |
216 | } | |
217 | if (matches > 1) | |
218 | { | |
8a3fe4f8 | 219 | warning (_("\"%s\": ambiguous core format, %d handlers match"), |
2acceee2 JM |
220 | bfd_get_filename (abfd), matches); |
221 | } | |
222 | else if (matches == 0) | |
06b9f45f JK |
223 | error (_("\"%s\": no core file handler recognizes format"), |
224 | bfd_get_filename (abfd)); | |
225 | ||
2acceee2 JM |
226 | return (yummy); |
227 | } | |
228 | ||
229 | /* The default is to reject every core file format we see. Either | |
230 | BFD has to recognize it, or we have to provide a function in the | |
aff410f1 | 231 | core file handler that recognizes it. */ |
2acceee2 JM |
232 | |
233 | int | |
fba45db2 | 234 | default_check_format (bfd *abfd) |
2acceee2 JM |
235 | { |
236 | return (0); | |
237 | } | |
238 | ||
aff410f1 | 239 | /* Attempt to recognize core file formats that BFD rejects. */ |
2acceee2 | 240 | |
020cc13c | 241 | static int |
fba45db2 | 242 | gdb_check_format (bfd *abfd) |
2acceee2 JM |
243 | { |
244 | struct core_fns *cf; | |
245 | ||
246 | for (cf = core_file_fns; cf != NULL; cf = cf->next) | |
247 | { | |
248 | if (cf->check_format (abfd)) | |
249 | { | |
81a9a963 | 250 | return (1); |
2acceee2 JM |
251 | } |
252 | } | |
81a9a963 | 253 | return (0); |
2acceee2 | 254 | } |
c906108c | 255 | |
15244507 | 256 | /* Close the core target. */ |
c906108c | 257 | |
15244507 PA |
258 | void |
259 | core_target::close () | |
c906108c | 260 | { |
c906108c SS |
261 | if (core_bfd) |
262 | { | |
959b8724 | 263 | int pid = ptid_get_pid (inferior_ptid); |
aff410f1 MS |
264 | inferior_ptid = null_ptid; /* Avoid confusion from thread |
265 | stuff. */ | |
06b9f45f JK |
266 | if (pid != 0) |
267 | exit_inferior_silent (pid); | |
c906108c | 268 | |
aff410f1 MS |
269 | /* Clear out solib state while the bfd is still open. See |
270 | comments in clear_solib in solib.c. */ | |
a77053c2 | 271 | clear_solib (); |
7a292a7a | 272 | |
06333fea | 273 | current_program_space->cbfd.reset (nullptr); |
c906108c | 274 | } |
c906108c | 275 | |
15244507 PA |
276 | /* Core targets are heap-allocated (see core_target_open), so here |
277 | we delete ourselves. */ | |
278 | delete this; | |
74b7792f AC |
279 | } |
280 | ||
aff410f1 MS |
281 | /* Look for sections whose names start with `.reg/' so that we can |
282 | extract the list of threads in a core file. */ | |
c906108c SS |
283 | |
284 | static void | |
4efb68b1 | 285 | add_to_thread_list (bfd *abfd, asection *asect, void *reg_sect_arg) |
c906108c | 286 | { |
0de3b513 | 287 | ptid_t ptid; |
3cdd9356 PA |
288 | int core_tid; |
289 | int pid, lwpid; | |
c906108c | 290 | asection *reg_sect = (asection *) reg_sect_arg; |
88f38a04 PA |
291 | int fake_pid_p = 0; |
292 | struct inferior *inf; | |
c906108c | 293 | |
61012eef | 294 | if (!startswith (bfd_section_name (abfd, asect), ".reg/")) |
c906108c SS |
295 | return; |
296 | ||
3cdd9356 | 297 | core_tid = atoi (bfd_section_name (abfd, asect) + 5); |
c906108c | 298 | |
261b8d08 PA |
299 | pid = bfd_core_file_pid (core_bfd); |
300 | if (pid == 0) | |
3cdd9356 | 301 | { |
88f38a04 | 302 | fake_pid_p = 1; |
3cdd9356 | 303 | pid = CORELOW_PID; |
3cdd9356 | 304 | } |
0de3b513 | 305 | |
261b8d08 PA |
306 | lwpid = core_tid; |
307 | ||
88f38a04 PA |
308 | inf = current_inferior (); |
309 | if (inf->pid == 0) | |
310 | { | |
311 | inferior_appeared (inf, pid); | |
312 | inf->fake_pid_p = fake_pid_p; | |
313 | } | |
3cdd9356 PA |
314 | |
315 | ptid = ptid_build (pid, lwpid, 0); | |
316 | ||
317 | add_thread (ptid); | |
c906108c SS |
318 | |
319 | /* Warning, Will Robinson, looking at BFD private data! */ | |
320 | ||
321 | if (reg_sect != NULL | |
aff410f1 MS |
322 | && asect->filepos == reg_sect->filepos) /* Did we find .reg? */ |
323 | inferior_ptid = ptid; /* Yes, make it current. */ | |
c906108c SS |
324 | } |
325 | ||
451953fa PA |
326 | /* Issue a message saying we have no core to debug, if FROM_TTY. */ |
327 | ||
328 | static void | |
329 | maybe_say_no_core_file_now (int from_tty) | |
330 | { | |
331 | if (from_tty) | |
332 | printf_filtered (_("No core file now.\n")); | |
333 | } | |
334 | ||
335 | /* Backward compatability with old way of specifying core files. */ | |
336 | ||
337 | void | |
338 | core_file_command (const char *filename, int from_tty) | |
339 | { | |
340 | dont_repeat (); /* Either way, seems bogus. */ | |
341 | ||
342 | if (filename == NULL) | |
343 | { | |
344 | if (core_bfd != NULL) | |
345 | { | |
346 | target_detach (current_inferior (), from_tty); | |
347 | gdb_assert (core_bfd == NULL); | |
348 | } | |
349 | else | |
350 | maybe_say_no_core_file_now (from_tty); | |
351 | } | |
352 | else | |
353 | core_target_open (filename, from_tty); | |
354 | } | |
355 | ||
d9f719f1 | 356 | /* See gdbcore.h. */ |
c906108c | 357 | |
f6ac5f3d | 358 | void |
d9f719f1 | 359 | core_target_open (const char *arg, int from_tty) |
c906108c SS |
360 | { |
361 | const char *p; | |
362 | int siggy; | |
363 | struct cleanup *old_chain; | |
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 | |
15244507 PA |
424 | push_target (target); |
425 | target_holder.release (); | |
c906108c | 426 | |
0de3b513 PA |
427 | /* Do this before acknowledging the inferior, so if |
428 | post_create_inferior throws (can happen easilly if you're loading | |
429 | a core file with the wrong exec), we aren't left with threads | |
430 | from the previous inferior. */ | |
431 | init_thread_list (); | |
432 | ||
3cdd9356 | 433 | inferior_ptid = null_ptid; |
0de3b513 | 434 | |
739fc47a PA |
435 | /* Need to flush the register cache (and the frame cache) from a |
436 | previous debug session. If inferior_ptid ends up the same as the | |
437 | last debug session --- e.g., b foo; run; gcore core1; step; gcore | |
438 | core2; core core1; core core2 --- then there's potential for | |
439 | get_current_regcache to return the cached regcache of the | |
440 | previous session, and the frame cache being stale. */ | |
441 | registers_changed (); | |
442 | ||
0de3b513 PA |
443 | /* Build up thread list from BFD sections, and possibly set the |
444 | current thread to the .reg/NN section matching the .reg | |
aff410f1 | 445 | section. */ |
0de3b513 PA |
446 | bfd_map_over_sections (core_bfd, add_to_thread_list, |
447 | bfd_get_section_by_name (core_bfd, ".reg")); | |
448 | ||
3cdd9356 PA |
449 | if (ptid_equal (inferior_ptid, null_ptid)) |
450 | { | |
451 | /* Either we found no .reg/NN section, and hence we have a | |
452 | non-threaded core (single-threaded, from gdb's perspective), | |
453 | or for some reason add_to_thread_list couldn't determine | |
454 | which was the "main" thread. The latter case shouldn't | |
455 | usually happen, but we're dealing with input here, which can | |
456 | always be broken in different ways. */ | |
457 | struct thread_info *thread = first_thread_of_process (-1); | |
c5504eaf | 458 | |
3cdd9356 PA |
459 | if (thread == NULL) |
460 | { | |
c45ceae0 | 461 | inferior_appeared (current_inferior (), CORELOW_PID); |
3cdd9356 PA |
462 | inferior_ptid = pid_to_ptid (CORELOW_PID); |
463 | add_thread_silent (inferior_ptid); | |
464 | } | |
465 | else | |
466 | switch_to_thread (thread->ptid); | |
467 | } | |
468 | ||
15244507 | 469 | post_create_inferior (target, from_tty); |
959b8724 | 470 | |
0de3b513 PA |
471 | /* Now go through the target stack looking for threads since there |
472 | may be a thread_stratum target loaded on top of target core by | |
473 | now. The layer above should claim threads found in the BFD | |
474 | sections. */ | |
492d29ea | 475 | TRY |
8e7b59a5 | 476 | { |
e8032dde | 477 | target_update_thread_list (); |
8e7b59a5 KS |
478 | } |
479 | ||
492d29ea PA |
480 | CATCH (except, RETURN_MASK_ERROR) |
481 | { | |
482 | exception_print (gdb_stderr, except); | |
483 | } | |
484 | END_CATCH | |
0de3b513 | 485 | |
c906108c SS |
486 | p = bfd_core_file_failing_command (core_bfd); |
487 | if (p) | |
a3f17187 | 488 | printf_filtered (_("Core was generated by `%s'.\n"), p); |
c906108c | 489 | |
0c557179 SDJ |
490 | /* Clearing any previous state of convenience variables. */ |
491 | clear_exit_convenience_vars (); | |
492 | ||
c906108c SS |
493 | siggy = bfd_core_file_failing_signal (core_bfd); |
494 | if (siggy > 0) | |
423ec54c | 495 | { |
15244507 PA |
496 | gdbarch *core_gdbarch = target->core_gdbarch (); |
497 | ||
22203bbf | 498 | /* If we don't have a CORE_GDBARCH to work with, assume a native |
1f8cf220 PA |
499 | core (map gdb_signal from host signals). If we do have |
500 | CORE_GDBARCH to work with, but no gdb_signal_from_target | |
501 | implementation for that gdbarch, as a fallback measure, | |
502 | assume the host signal mapping. It'll be correct for native | |
503 | cores, but most likely incorrect for cross-cores. */ | |
2ea28649 | 504 | enum gdb_signal sig = (core_gdbarch != NULL |
1f8cf220 PA |
505 | && gdbarch_gdb_signal_from_target_p (core_gdbarch) |
506 | ? gdbarch_gdb_signal_from_target (core_gdbarch, | |
507 | siggy) | |
508 | : gdb_signal_from_host (siggy)); | |
423ec54c | 509 | |
2d503272 PM |
510 | printf_filtered (_("Program terminated with signal %s, %s.\n"), |
511 | gdb_signal_to_name (sig), gdb_signal_to_string (sig)); | |
0c557179 SDJ |
512 | |
513 | /* Set the value of the internal variable $_exitsignal, | |
514 | which holds the signal uncaught by the inferior. */ | |
515 | set_internalvar_integer (lookup_internalvar ("_exitsignal"), | |
516 | siggy); | |
423ec54c | 517 | } |
c906108c | 518 | |
87ab71f0 PA |
519 | /* Fetch all registers from core file. */ |
520 | target_fetch_registers (get_current_regcache (), -1); | |
c906108c | 521 | |
87ab71f0 PA |
522 | /* Now, set up the frame cache, and print the top of stack. */ |
523 | reinit_frame_cache (); | |
08d72866 | 524 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1); |
f0e8c4c5 JK |
525 | |
526 | /* Current thread should be NUM 1 but the user does not know that. | |
527 | If a program is single threaded gdb in general does not mention | |
528 | anything about threads. That is why the test is >= 2. */ | |
529 | if (thread_count () >= 2) | |
530 | { | |
492d29ea | 531 | TRY |
f0e8c4c5 JK |
532 | { |
533 | thread_command (NULL, from_tty); | |
534 | } | |
492d29ea PA |
535 | CATCH (except, RETURN_MASK_ERROR) |
536 | { | |
537 | exception_print (gdb_stderr, except); | |
538 | } | |
539 | END_CATCH | |
f0e8c4c5 | 540 | } |
c906108c SS |
541 | } |
542 | ||
f6ac5f3d PA |
543 | void |
544 | core_target::detach (inferior *inf, int from_tty) | |
c906108c | 545 | { |
15244507 PA |
546 | /* Note that 'this' is dangling after this call. unpush_target |
547 | closes the target, and our close implementation deletes | |
548 | 'this'. */ | |
f6ac5f3d | 549 | unpush_target (this); |
15244507 | 550 | |
c906108c | 551 | reinit_frame_cache (); |
451953fa | 552 | maybe_say_no_core_file_now (from_tty); |
c906108c SS |
553 | } |
554 | ||
de57eccd | 555 | /* Try to retrieve registers from a section in core_bfd, and supply |
15244507 PA |
556 | them to m_core_vec->core_read_registers, as the register set |
557 | numbered WHICH. | |
de57eccd | 558 | |
11a33714 SM |
559 | If ptid's lwp member is zero, do the single-threaded |
560 | thing: look for a section named NAME. If ptid's lwp | |
0de3b513 PA |
561 | member is non-zero, do the multi-threaded thing: look for a section |
562 | named "NAME/LWP", where LWP is the shortest ASCII decimal | |
11a33714 | 563 | representation of ptid's lwp member. |
de57eccd JM |
564 | |
565 | HUMAN_NAME is a human-readable name for the kind of registers the | |
566 | NAME section contains, for use in error messages. | |
567 | ||
15244507 PA |
568 | If REQUIRED is true, print an error if the core file doesn't have a |
569 | section by the appropriate name. Otherwise, just do nothing. */ | |
de57eccd | 570 | |
15244507 PA |
571 | void |
572 | core_target::get_core_register_section (struct regcache *regcache, | |
573 | const struct regset *regset, | |
574 | const char *name, | |
575 | int min_size, | |
576 | int which, | |
577 | const char *human_name, | |
578 | bool required) | |
de57eccd | 579 | { |
7be0c536 | 580 | struct bfd_section *section; |
de57eccd JM |
581 | bfd_size_type size; |
582 | char *contents; | |
874a1c8c AT |
583 | bool variable_size_section = (regset != NULL |
584 | && regset->flags & REGSET_VARIABLE_SIZE); | |
de57eccd | 585 | |
3c3ae77e | 586 | thread_section_name section_name (name, regcache->ptid ()); |
de57eccd | 587 | |
3c3ae77e | 588 | section = bfd_get_section_by_name (core_bfd, section_name.c_str ()); |
de57eccd JM |
589 | if (! section) |
590 | { | |
591 | if (required) | |
aff410f1 MS |
592 | warning (_("Couldn't find %s registers in core file."), |
593 | human_name); | |
de57eccd JM |
594 | return; |
595 | } | |
596 | ||
597 | size = bfd_section_size (core_bfd, section); | |
8f0435f7 AA |
598 | if (size < min_size) |
599 | { | |
3c3ae77e PA |
600 | warning (_("Section `%s' in core file too small."), |
601 | section_name.c_str ()); | |
8f0435f7 AA |
602 | return; |
603 | } | |
874a1c8c | 604 | if (size != min_size && !variable_size_section) |
f962539a AA |
605 | { |
606 | warning (_("Unexpected size of section `%s' in core file."), | |
3c3ae77e | 607 | section_name.c_str ()); |
f962539a | 608 | } |
8f0435f7 | 609 | |
224c3ddb | 610 | contents = (char *) alloca (size); |
de57eccd JM |
611 | if (! bfd_get_section_contents (core_bfd, section, contents, |
612 | (file_ptr) 0, size)) | |
613 | { | |
8a3fe4f8 | 614 | warning (_("Couldn't read %s registers from `%s' section in core file."), |
3c3ae77e | 615 | human_name, section_name.c_str ()); |
de57eccd JM |
616 | return; |
617 | } | |
618 | ||
8f0435f7 AA |
619 | if (regset != NULL) |
620 | { | |
9eefc95f | 621 | regset->supply_regset (regset, regcache, -1, contents, size); |
0e24ac5d MK |
622 | return; |
623 | } | |
624 | ||
15244507 PA |
625 | gdb_assert (m_core_vec != nullptr); |
626 | m_core_vec->core_read_registers (regcache, contents, size, which, | |
627 | ((CORE_ADDR) | |
628 | bfd_section_vma (core_bfd, section))); | |
de57eccd JM |
629 | } |
630 | ||
15244507 PA |
631 | /* Data passed to gdbarch_iterate_over_regset_sections's callback. */ |
632 | struct get_core_registers_cb_data | |
633 | { | |
634 | core_target *target; | |
635 | struct regcache *regcache; | |
636 | }; | |
637 | ||
5aa82d05 AA |
638 | /* Callback for get_core_registers that handles a single core file |
639 | register note section. */ | |
640 | ||
641 | static void | |
642 | get_core_registers_cb (const char *sect_name, int size, | |
8f0435f7 | 643 | const struct regset *regset, |
5aa82d05 AA |
644 | const char *human_name, void *cb_data) |
645 | { | |
15244507 PA |
646 | auto *data = (get_core_registers_cb_data *) cb_data; |
647 | bool required = false; | |
5aa82d05 AA |
648 | |
649 | if (strcmp (sect_name, ".reg") == 0) | |
8f0435f7 | 650 | { |
15244507 | 651 | required = true; |
8f0435f7 AA |
652 | if (human_name == NULL) |
653 | human_name = "general-purpose"; | |
654 | } | |
5aa82d05 | 655 | else if (strcmp (sect_name, ".reg2") == 0) |
8f0435f7 AA |
656 | { |
657 | if (human_name == NULL) | |
658 | human_name = "floating-point"; | |
659 | } | |
660 | ||
661 | /* The 'which' parameter is only used when no regset is provided. | |
662 | Thus we just set it to -1. */ | |
15244507 PA |
663 | data->target->get_core_register_section (data->regcache, regset, sect_name, |
664 | size, -1, human_name, required); | |
5aa82d05 | 665 | } |
de57eccd | 666 | |
c906108c SS |
667 | /* Get the registers out of a core file. This is the machine- |
668 | independent part. Fetch_core_registers is the machine-dependent | |
aff410f1 MS |
669 | part, typically implemented in the xm-file for each |
670 | architecture. */ | |
c906108c SS |
671 | |
672 | /* We just get all the registers, so we don't use regno. */ | |
673 | ||
f6ac5f3d PA |
674 | void |
675 | core_target::fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 676 | { |
9c5ea4d9 | 677 | int i; |
5aa82d05 | 678 | struct gdbarch *gdbarch; |
c906108c | 679 | |
15244507 PA |
680 | if (!(m_core_gdbarch != nullptr |
681 | && gdbarch_iterate_over_regset_sections_p (m_core_gdbarch)) | |
682 | && (m_core_vec == NULL || m_core_vec->core_read_registers == NULL)) | |
c906108c SS |
683 | { |
684 | fprintf_filtered (gdb_stderr, | |
c5aa993b | 685 | "Can't fetch registers from this type of core file\n"); |
c906108c SS |
686 | return; |
687 | } | |
688 | ||
ac7936df | 689 | gdbarch = regcache->arch (); |
5aa82d05 | 690 | if (gdbarch_iterate_over_regset_sections_p (gdbarch)) |
15244507 PA |
691 | { |
692 | get_core_registers_cb_data data = { this, regcache }; | |
693 | gdbarch_iterate_over_regset_sections (gdbarch, | |
694 | get_core_registers_cb, | |
695 | (void *) &data, NULL); | |
696 | } | |
1b1818e4 UW |
697 | else |
698 | { | |
8f0435f7 AA |
699 | get_core_register_section (regcache, NULL, |
700 | ".reg", 0, 0, "general-purpose", 1); | |
701 | get_core_register_section (regcache, NULL, | |
702 | ".reg2", 0, 2, "floating-point", 0); | |
1b1818e4 | 703 | } |
c906108c | 704 | |
ee99023e | 705 | /* Mark all registers not found in the core as unavailable. */ |
ac7936df | 706 | for (i = 0; i < gdbarch_num_regs (regcache->arch ()); i++) |
0ec9f114 | 707 | if (regcache->get_register_status (i) == REG_UNKNOWN) |
73e1c03f | 708 | regcache->raw_supply (i, NULL); |
c906108c SS |
709 | } |
710 | ||
f6ac5f3d PA |
711 | void |
712 | core_target::files_info () | |
c906108c | 713 | { |
15244507 | 714 | print_section_info (&m_core_section_table, core_bfd); |
c906108c | 715 | } |
e2544d02 | 716 | \f |
efcbbd14 UW |
717 | struct spuid_list |
718 | { | |
719 | gdb_byte *buf; | |
720 | ULONGEST offset; | |
721 | LONGEST len; | |
722 | ULONGEST pos; | |
723 | ULONGEST written; | |
724 | }; | |
725 | ||
726 | static void | |
727 | add_to_spuid_list (bfd *abfd, asection *asect, void *list_p) | |
728 | { | |
9a3c8263 | 729 | struct spuid_list *list = (struct spuid_list *) list_p; |
efcbbd14 | 730 | enum bfd_endian byte_order |
aff410f1 | 731 | = bfd_big_endian (abfd) ? BFD_ENDIAN_BIG : BFD_ENDIAN_LITTLE; |
efcbbd14 UW |
732 | int fd, pos = 0; |
733 | ||
734 | sscanf (bfd_section_name (abfd, asect), "SPU/%d/regs%n", &fd, &pos); | |
735 | if (pos == 0) | |
736 | return; | |
737 | ||
738 | if (list->pos >= list->offset && list->pos + 4 <= list->offset + list->len) | |
739 | { | |
740 | store_unsigned_integer (list->buf + list->pos - list->offset, | |
741 | 4, byte_order, fd); | |
742 | list->written += 4; | |
743 | } | |
744 | list->pos += 4; | |
745 | } | |
746 | ||
f6ac5f3d PA |
747 | enum target_xfer_status |
748 | core_target::xfer_partial (enum target_object object, const char *annex, | |
749 | gdb_byte *readbuf, const gdb_byte *writebuf, | |
750 | ULONGEST offset, ULONGEST len, ULONGEST *xfered_len) | |
e2544d02 RM |
751 | { |
752 | switch (object) | |
753 | { | |
754 | case TARGET_OBJECT_MEMORY: | |
15244507 PA |
755 | return (section_table_xfer_memory_partial |
756 | (readbuf, writebuf, | |
757 | offset, len, xfered_len, | |
758 | m_core_section_table.sections, | |
759 | m_core_section_table.sections_end, | |
760 | NULL)); | |
e2544d02 RM |
761 | |
762 | case TARGET_OBJECT_AUXV: | |
763 | if (readbuf) | |
764 | { | |
765 | /* When the aux vector is stored in core file, BFD | |
766 | represents this with a fake section called ".auxv". */ | |
767 | ||
c4c5b7ba | 768 | struct bfd_section *section; |
e2544d02 | 769 | bfd_size_type size; |
e2544d02 RM |
770 | |
771 | section = bfd_get_section_by_name (core_bfd, ".auxv"); | |
772 | if (section == NULL) | |
2ed4b548 | 773 | return TARGET_XFER_E_IO; |
e2544d02 RM |
774 | |
775 | size = bfd_section_size (core_bfd, section); | |
776 | if (offset >= size) | |
9b409511 | 777 | return TARGET_XFER_EOF; |
e2544d02 RM |
778 | size -= offset; |
779 | if (size > len) | |
780 | size = len; | |
9b409511 YQ |
781 | |
782 | if (size == 0) | |
783 | return TARGET_XFER_EOF; | |
784 | if (!bfd_get_section_contents (core_bfd, section, readbuf, | |
785 | (file_ptr) offset, size)) | |
e2544d02 | 786 | { |
8a3fe4f8 | 787 | warning (_("Couldn't read NT_AUXV note in core file.")); |
2ed4b548 | 788 | return TARGET_XFER_E_IO; |
e2544d02 RM |
789 | } |
790 | ||
9b409511 YQ |
791 | *xfered_len = (ULONGEST) size; |
792 | return TARGET_XFER_OK; | |
e2544d02 | 793 | } |
2ed4b548 | 794 | return TARGET_XFER_E_IO; |
e2544d02 | 795 | |
403e1656 MK |
796 | case TARGET_OBJECT_WCOOKIE: |
797 | if (readbuf) | |
798 | { | |
799 | /* When the StackGhost cookie is stored in core file, BFD | |
aff410f1 MS |
800 | represents this with a fake section called |
801 | ".wcookie". */ | |
403e1656 MK |
802 | |
803 | struct bfd_section *section; | |
804 | bfd_size_type size; | |
403e1656 MK |
805 | |
806 | section = bfd_get_section_by_name (core_bfd, ".wcookie"); | |
807 | if (section == NULL) | |
2ed4b548 | 808 | return TARGET_XFER_E_IO; |
403e1656 MK |
809 | |
810 | size = bfd_section_size (core_bfd, section); | |
811 | if (offset >= size) | |
96c4f946 | 812 | return TARGET_XFER_EOF; |
403e1656 MK |
813 | size -= offset; |
814 | if (size > len) | |
815 | size = len; | |
9b409511 YQ |
816 | |
817 | if (size == 0) | |
818 | return TARGET_XFER_EOF; | |
819 | if (!bfd_get_section_contents (core_bfd, section, readbuf, | |
820 | (file_ptr) offset, size)) | |
403e1656 | 821 | { |
8a3fe4f8 | 822 | warning (_("Couldn't read StackGhost cookie in core file.")); |
2ed4b548 | 823 | return TARGET_XFER_E_IO; |
403e1656 MK |
824 | } |
825 | ||
9b409511 YQ |
826 | *xfered_len = (ULONGEST) size; |
827 | return TARGET_XFER_OK; | |
828 | ||
403e1656 | 829 | } |
2ed4b548 | 830 | return TARGET_XFER_E_IO; |
403e1656 | 831 | |
de584861 | 832 | case TARGET_OBJECT_LIBRARIES: |
15244507 PA |
833 | if (m_core_gdbarch != nullptr |
834 | && gdbarch_core_xfer_shared_libraries_p (m_core_gdbarch)) | |
de584861 PA |
835 | { |
836 | if (writebuf) | |
2ed4b548 | 837 | return TARGET_XFER_E_IO; |
9b409511 YQ |
838 | else |
839 | { | |
15244507 | 840 | *xfered_len = gdbarch_core_xfer_shared_libraries (m_core_gdbarch, |
9b409511 YQ |
841 | readbuf, |
842 | offset, len); | |
843 | ||
844 | if (*xfered_len == 0) | |
845 | return TARGET_XFER_EOF; | |
846 | else | |
847 | return TARGET_XFER_OK; | |
848 | } | |
de584861 PA |
849 | } |
850 | /* FALL THROUGH */ | |
851 | ||
356a5233 | 852 | case TARGET_OBJECT_LIBRARIES_AIX: |
15244507 PA |
853 | if (m_core_gdbarch != nullptr |
854 | && gdbarch_core_xfer_shared_libraries_aix_p (m_core_gdbarch)) | |
356a5233 JB |
855 | { |
856 | if (writebuf) | |
2ed4b548 | 857 | return TARGET_XFER_E_IO; |
9b409511 YQ |
858 | else |
859 | { | |
860 | *xfered_len | |
15244507 | 861 | = gdbarch_core_xfer_shared_libraries_aix (m_core_gdbarch, |
9b409511 YQ |
862 | readbuf, offset, |
863 | len); | |
864 | ||
865 | if (*xfered_len == 0) | |
866 | return TARGET_XFER_EOF; | |
867 | else | |
868 | return TARGET_XFER_OK; | |
869 | } | |
356a5233 JB |
870 | } |
871 | /* FALL THROUGH */ | |
872 | ||
efcbbd14 UW |
873 | case TARGET_OBJECT_SPU: |
874 | if (readbuf && annex) | |
875 | { | |
876 | /* When the SPU contexts are stored in a core file, BFD | |
aff410f1 MS |
877 | represents this with a fake section called |
878 | "SPU/<annex>". */ | |
efcbbd14 UW |
879 | |
880 | struct bfd_section *section; | |
881 | bfd_size_type size; | |
efcbbd14 | 882 | char sectionstr[100]; |
c5504eaf | 883 | |
efcbbd14 UW |
884 | xsnprintf (sectionstr, sizeof sectionstr, "SPU/%s", annex); |
885 | ||
886 | section = bfd_get_section_by_name (core_bfd, sectionstr); | |
887 | if (section == NULL) | |
2ed4b548 | 888 | return TARGET_XFER_E_IO; |
efcbbd14 UW |
889 | |
890 | size = bfd_section_size (core_bfd, section); | |
891 | if (offset >= size) | |
9b409511 | 892 | return TARGET_XFER_EOF; |
efcbbd14 UW |
893 | size -= offset; |
894 | if (size > len) | |
895 | size = len; | |
9b409511 YQ |
896 | |
897 | if (size == 0) | |
898 | return TARGET_XFER_EOF; | |
899 | if (!bfd_get_section_contents (core_bfd, section, readbuf, | |
900 | (file_ptr) offset, size)) | |
efcbbd14 UW |
901 | { |
902 | warning (_("Couldn't read SPU section in core file.")); | |
2ed4b548 | 903 | return TARGET_XFER_E_IO; |
efcbbd14 UW |
904 | } |
905 | ||
9b409511 YQ |
906 | *xfered_len = (ULONGEST) size; |
907 | return TARGET_XFER_OK; | |
efcbbd14 UW |
908 | } |
909 | else if (readbuf) | |
910 | { | |
911 | /* NULL annex requests list of all present spuids. */ | |
912 | struct spuid_list list; | |
c5504eaf | 913 | |
efcbbd14 UW |
914 | list.buf = readbuf; |
915 | list.offset = offset; | |
916 | list.len = len; | |
917 | list.pos = 0; | |
918 | list.written = 0; | |
919 | bfd_map_over_sections (core_bfd, add_to_spuid_list, &list); | |
9b409511 YQ |
920 | |
921 | if (list.written == 0) | |
922 | return TARGET_XFER_EOF; | |
923 | else | |
924 | { | |
925 | *xfered_len = (ULONGEST) list.written; | |
926 | return TARGET_XFER_OK; | |
927 | } | |
efcbbd14 | 928 | } |
2ed4b548 | 929 | return TARGET_XFER_E_IO; |
efcbbd14 | 930 | |
9015683b TT |
931 | case TARGET_OBJECT_SIGNAL_INFO: |
932 | if (readbuf) | |
9b409511 | 933 | { |
15244507 PA |
934 | if (m_core_gdbarch != nullptr |
935 | && gdbarch_core_xfer_siginfo_p (m_core_gdbarch)) | |
9b409511 | 936 | { |
15244507 | 937 | LONGEST l = gdbarch_core_xfer_siginfo (m_core_gdbarch, readbuf, |
382b69bb JB |
938 | offset, len); |
939 | ||
940 | if (l >= 0) | |
941 | { | |
942 | *xfered_len = l; | |
943 | if (l == 0) | |
944 | return TARGET_XFER_EOF; | |
945 | else | |
946 | return TARGET_XFER_OK; | |
947 | } | |
9b409511 YQ |
948 | } |
949 | } | |
2ed4b548 | 950 | return TARGET_XFER_E_IO; |
9015683b | 951 | |
e2544d02 | 952 | default: |
b6a8c27b PA |
953 | return this->beneath ()->xfer_partial (object, annex, readbuf, |
954 | writebuf, offset, len, | |
955 | xfered_len); | |
e2544d02 RM |
956 | } |
957 | } | |
958 | ||
c906108c | 959 | \f |
c906108c SS |
960 | |
961 | /* Okay, let's be honest: threads gleaned from a core file aren't | |
962 | exactly lively, are they? On the other hand, if we don't claim | |
963 | that each & every one is alive, then we don't get any of them | |
964 | to appear in an "info thread" command, which is quite a useful | |
965 | behaviour. | |
c5aa993b | 966 | */ |
57810aa7 | 967 | bool |
f6ac5f3d | 968 | core_target::thread_alive (ptid_t ptid) |
c906108c | 969 | { |
57810aa7 | 970 | return true; |
c906108c SS |
971 | } |
972 | ||
4eb0ad19 DJ |
973 | /* Ask the current architecture what it knows about this core file. |
974 | That will be used, in turn, to pick a better architecture. This | |
975 | wrapper could be avoided if targets got a chance to specialize | |
15244507 | 976 | core_target. */ |
4eb0ad19 | 977 | |
f6ac5f3d PA |
978 | const struct target_desc * |
979 | core_target::read_description () | |
4eb0ad19 | 980 | { |
15244507 | 981 | if (m_core_gdbarch && gdbarch_core_read_description_p (m_core_gdbarch)) |
2117c711 TT |
982 | { |
983 | const struct target_desc *result; | |
984 | ||
15244507 | 985 | result = gdbarch_core_read_description (m_core_gdbarch, this, core_bfd); |
2117c711 TT |
986 | if (result != NULL) |
987 | return result; | |
988 | } | |
4eb0ad19 | 989 | |
b6a8c27b | 990 | return this->beneath ()->read_description (); |
4eb0ad19 DJ |
991 | } |
992 | ||
f6ac5f3d PA |
993 | const char * |
994 | core_target::pid_to_str (ptid_t ptid) | |
0de3b513 PA |
995 | { |
996 | static char buf[64]; | |
88f38a04 | 997 | struct inferior *inf; |
a5ee0f0c | 998 | int pid; |
0de3b513 | 999 | |
a5ee0f0c PA |
1000 | /* The preferred way is to have a gdbarch/OS specific |
1001 | implementation. */ | |
15244507 PA |
1002 | if (m_core_gdbarch != nullptr |
1003 | && gdbarch_core_pid_to_str_p (m_core_gdbarch)) | |
1004 | return gdbarch_core_pid_to_str (m_core_gdbarch, ptid); | |
c5504eaf | 1005 | |
a5ee0f0c PA |
1006 | /* Otherwise, if we don't have one, we'll just fallback to |
1007 | "process", with normal_pid_to_str. */ | |
28439f5e | 1008 | |
a5ee0f0c PA |
1009 | /* Try the LWPID field first. */ |
1010 | pid = ptid_get_lwp (ptid); | |
1011 | if (pid != 0) | |
1012 | return normal_pid_to_str (pid_to_ptid (pid)); | |
1013 | ||
1014 | /* Otherwise, this isn't a "threaded" core -- use the PID field, but | |
1015 | only if it isn't a fake PID. */ | |
c9657e70 | 1016 | inf = find_inferior_ptid (ptid); |
88f38a04 | 1017 | if (inf != NULL && !inf->fake_pid_p) |
a5ee0f0c | 1018 | return normal_pid_to_str (ptid); |
0de3b513 | 1019 | |
a5ee0f0c PA |
1020 | /* No luck. We simply don't have a valid PID to print. */ |
1021 | xsnprintf (buf, sizeof buf, "<main task>"); | |
0de3b513 PA |
1022 | return buf; |
1023 | } | |
1024 | ||
f6ac5f3d PA |
1025 | const char * |
1026 | core_target::thread_name (struct thread_info *thr) | |
4dfc5dbc | 1027 | { |
15244507 PA |
1028 | if (m_core_gdbarch != nullptr |
1029 | && gdbarch_core_thread_name_p (m_core_gdbarch)) | |
1030 | return gdbarch_core_thread_name (m_core_gdbarch, thr); | |
4dfc5dbc JB |
1031 | return NULL; |
1032 | } | |
1033 | ||
57810aa7 | 1034 | bool |
f6ac5f3d | 1035 | core_target::has_memory () |
c35b1492 PA |
1036 | { |
1037 | return (core_bfd != NULL); | |
1038 | } | |
1039 | ||
57810aa7 | 1040 | bool |
f6ac5f3d | 1041 | core_target::has_stack () |
c35b1492 PA |
1042 | { |
1043 | return (core_bfd != NULL); | |
1044 | } | |
1045 | ||
57810aa7 | 1046 | bool |
f6ac5f3d | 1047 | core_target::has_registers () |
c35b1492 PA |
1048 | { |
1049 | return (core_bfd != NULL); | |
1050 | } | |
1051 | ||
451b7c33 TT |
1052 | /* Implement the to_info_proc method. */ |
1053 | ||
f6ac5f3d PA |
1054 | bool |
1055 | core_target::info_proc (const char *args, enum info_proc_what request) | |
451b7c33 TT |
1056 | { |
1057 | struct gdbarch *gdbarch = get_current_arch (); | |
1058 | ||
1059 | /* Since this is the core file target, call the 'core_info_proc' | |
1060 | method on gdbarch, not 'info_proc'. */ | |
1061 | if (gdbarch_core_info_proc_p (gdbarch)) | |
1062 | gdbarch_core_info_proc (gdbarch, args, request); | |
c906108c | 1063 | |
f6ac5f3d | 1064 | return true; |
c906108c SS |
1065 | } |
1066 | ||
c906108c | 1067 | void |
fba45db2 | 1068 | _initialize_corelow (void) |
c906108c | 1069 | { |
d9f719f1 | 1070 | add_target (core_target_info, core_target_open, filename_completer); |
c906108c | 1071 | } |