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 | { | |
aff410f1 MS |
263 | inferior_ptid = null_ptid; /* Avoid confusion from thread |
264 | stuff. */ | |
00431a78 | 265 | exit_inferior_silent (current_inferior ()); |
c906108c | 266 | |
aff410f1 MS |
267 | /* Clear out solib state while the bfd is still open. See |
268 | comments in clear_solib in solib.c. */ | |
a77053c2 | 269 | clear_solib (); |
7a292a7a | 270 | |
06333fea | 271 | current_program_space->cbfd.reset (nullptr); |
c906108c | 272 | } |
c906108c | 273 | |
15244507 PA |
274 | /* Core targets are heap-allocated (see core_target_open), so here |
275 | we delete ourselves. */ | |
276 | delete this; | |
74b7792f AC |
277 | } |
278 | ||
aff410f1 MS |
279 | /* Look for sections whose names start with `.reg/' so that we can |
280 | extract the list of threads in a core file. */ | |
c906108c SS |
281 | |
282 | static void | |
4efb68b1 | 283 | add_to_thread_list (bfd *abfd, asection *asect, void *reg_sect_arg) |
c906108c | 284 | { |
0de3b513 | 285 | ptid_t ptid; |
3cdd9356 PA |
286 | int core_tid; |
287 | int pid, lwpid; | |
c906108c | 288 | asection *reg_sect = (asection *) reg_sect_arg; |
88f38a04 PA |
289 | int fake_pid_p = 0; |
290 | struct inferior *inf; | |
c906108c | 291 | |
61012eef | 292 | if (!startswith (bfd_section_name (abfd, asect), ".reg/")) |
c906108c SS |
293 | return; |
294 | ||
3cdd9356 | 295 | core_tid = atoi (bfd_section_name (abfd, asect) + 5); |
c906108c | 296 | |
261b8d08 PA |
297 | pid = bfd_core_file_pid (core_bfd); |
298 | if (pid == 0) | |
3cdd9356 | 299 | { |
88f38a04 | 300 | fake_pid_p = 1; |
3cdd9356 | 301 | pid = CORELOW_PID; |
3cdd9356 | 302 | } |
0de3b513 | 303 | |
261b8d08 PA |
304 | lwpid = core_tid; |
305 | ||
88f38a04 PA |
306 | inf = current_inferior (); |
307 | if (inf->pid == 0) | |
308 | { | |
309 | inferior_appeared (inf, pid); | |
310 | inf->fake_pid_p = fake_pid_p; | |
311 | } | |
3cdd9356 | 312 | |
fd79271b | 313 | ptid = ptid_t (pid, lwpid, 0); |
3cdd9356 PA |
314 | |
315 | add_thread (ptid); | |
c906108c SS |
316 | |
317 | /* Warning, Will Robinson, looking at BFD private data! */ | |
318 | ||
319 | if (reg_sect != NULL | |
aff410f1 MS |
320 | && asect->filepos == reg_sect->filepos) /* Did we find .reg? */ |
321 | inferior_ptid = ptid; /* Yes, make it current. */ | |
c906108c SS |
322 | } |
323 | ||
451953fa PA |
324 | /* Issue a message saying we have no core to debug, if FROM_TTY. */ |
325 | ||
326 | static void | |
327 | maybe_say_no_core_file_now (int from_tty) | |
328 | { | |
329 | if (from_tty) | |
330 | printf_filtered (_("No core file now.\n")); | |
331 | } | |
332 | ||
333 | /* Backward compatability with old way of specifying core files. */ | |
334 | ||
335 | void | |
336 | core_file_command (const char *filename, int from_tty) | |
337 | { | |
338 | dont_repeat (); /* Either way, seems bogus. */ | |
339 | ||
340 | if (filename == NULL) | |
341 | { | |
342 | if (core_bfd != NULL) | |
343 | { | |
344 | target_detach (current_inferior (), from_tty); | |
345 | gdb_assert (core_bfd == NULL); | |
346 | } | |
347 | else | |
348 | maybe_say_no_core_file_now (from_tty); | |
349 | } | |
350 | else | |
351 | core_target_open (filename, from_tty); | |
352 | } | |
353 | ||
d9f719f1 | 354 | /* See gdbcore.h. */ |
c906108c | 355 | |
f6ac5f3d | 356 | void |
d9f719f1 | 357 | core_target_open (const char *arg, int from_tty) |
c906108c SS |
358 | { |
359 | const char *p; | |
360 | int siggy; | |
361 | struct cleanup *old_chain; | |
c906108c | 362 | int scratch_chan; |
ee28ca0f | 363 | int flags; |
c906108c SS |
364 | |
365 | target_preopen (from_tty); | |
014f9477 | 366 | if (!arg) |
c906108c | 367 | { |
8a3fe4f8 | 368 | if (core_bfd) |
3e43a32a MS |
369 | error (_("No core file specified. (Use `detach' " |
370 | "to stop debugging a core file.)")); | |
8a3fe4f8 AC |
371 | else |
372 | error (_("No core file specified.")); | |
c906108c SS |
373 | } |
374 | ||
ee0c3293 TT |
375 | gdb::unique_xmalloc_ptr<char> filename (tilde_expand (arg)); |
376 | if (!IS_ABSOLUTE_PATH (filename.get ())) | |
377 | filename.reset (concat (current_directory, "/", | |
378 | filename.get (), (char *) NULL)); | |
c906108c | 379 | |
ee28ca0f AC |
380 | flags = O_BINARY | O_LARGEFILE; |
381 | if (write_files) | |
382 | flags |= O_RDWR; | |
383 | else | |
384 | flags |= O_RDONLY; | |
ee0c3293 | 385 | scratch_chan = gdb_open_cloexec (filename.get (), flags, 0); |
c906108c | 386 | if (scratch_chan < 0) |
ee0c3293 | 387 | perror_with_name (filename.get ()); |
c906108c | 388 | |
ee0c3293 | 389 | gdb_bfd_ref_ptr temp_bfd (gdb_bfd_fopen (filename.get (), gnutarget, |
192b62ce TT |
390 | write_files ? FOPEN_RUB : FOPEN_RB, |
391 | scratch_chan)); | |
c906108c | 392 | if (temp_bfd == NULL) |
ee0c3293 | 393 | perror_with_name (filename.get ()); |
c906108c | 394 | |
192b62ce TT |
395 | if (!bfd_check_format (temp_bfd.get (), bfd_core) |
396 | && !gdb_check_format (temp_bfd.get ())) | |
c906108c SS |
397 | { |
398 | /* Do it after the err msg */ | |
aff410f1 MS |
399 | /* FIXME: should be checking for errors from bfd_close (for one |
400 | thing, on error it does not free all the storage associated | |
401 | with the bfd). */ | |
8a3fe4f8 | 402 | error (_("\"%s\" is not a core dump: %s"), |
ee0c3293 | 403 | filename.get (), bfd_errmsg (bfd_get_error ())); |
c906108c SS |
404 | } |
405 | ||
06333fea | 406 | current_program_space->cbfd = std::move (temp_bfd); |
c906108c | 407 | |
15244507 | 408 | core_target *target = new core_target (); |
0e24ac5d | 409 | |
15244507 PA |
410 | /* Own the target until it is successfully pushed. */ |
411 | target_ops_up target_holder (target); | |
2acceee2 | 412 | |
c906108c SS |
413 | validate_files (); |
414 | ||
2f1b5984 MK |
415 | /* If we have no exec file, try to set the architecture from the |
416 | core file. We don't do this unconditionally since an exec file | |
417 | typically contains more information that helps us determine the | |
418 | architecture than a core file. */ | |
419 | if (!exec_bfd) | |
420 | set_gdbarch_from_file (core_bfd); | |
cbda0a99 | 421 | |
15244507 PA |
422 | push_target (target); |
423 | target_holder.release (); | |
c906108c | 424 | |
0de3b513 PA |
425 | /* Do this before acknowledging the inferior, so if |
426 | post_create_inferior throws (can happen easilly if you're loading | |
427 | a core file with the wrong exec), we aren't left with threads | |
428 | from the previous inferior. */ | |
429 | init_thread_list (); | |
430 | ||
3cdd9356 | 431 | inferior_ptid = null_ptid; |
0de3b513 | 432 | |
739fc47a PA |
433 | /* Need to flush the register cache (and the frame cache) from a |
434 | previous debug session. If inferior_ptid ends up the same as the | |
435 | last debug session --- e.g., b foo; run; gcore core1; step; gcore | |
436 | core2; core core1; core core2 --- then there's potential for | |
437 | get_current_regcache to return the cached regcache of the | |
438 | previous session, and the frame cache being stale. */ | |
439 | registers_changed (); | |
440 | ||
0de3b513 PA |
441 | /* Build up thread list from BFD sections, and possibly set the |
442 | current thread to the .reg/NN section matching the .reg | |
aff410f1 | 443 | section. */ |
0de3b513 PA |
444 | bfd_map_over_sections (core_bfd, add_to_thread_list, |
445 | bfd_get_section_by_name (core_bfd, ".reg")); | |
446 | ||
d7e15655 | 447 | if (inferior_ptid == null_ptid) |
3cdd9356 PA |
448 | { |
449 | /* Either we found no .reg/NN section, and hence we have a | |
450 | non-threaded core (single-threaded, from gdb's perspective), | |
451 | or for some reason add_to_thread_list couldn't determine | |
452 | which was the "main" thread. The latter case shouldn't | |
453 | usually happen, but we're dealing with input here, which can | |
454 | always be broken in different ways. */ | |
00431a78 | 455 | thread_info *thread = first_thread_of_inferior (current_inferior ()); |
c5504eaf | 456 | |
3cdd9356 PA |
457 | if (thread == NULL) |
458 | { | |
c45ceae0 | 459 | inferior_appeared (current_inferior (), CORELOW_PID); |
f2907e49 | 460 | inferior_ptid = ptid_t (CORELOW_PID); |
3cdd9356 PA |
461 | add_thread_silent (inferior_ptid); |
462 | } | |
463 | else | |
00431a78 | 464 | switch_to_thread (thread); |
3cdd9356 PA |
465 | } |
466 | ||
15244507 | 467 | post_create_inferior (target, from_tty); |
959b8724 | 468 | |
0de3b513 PA |
469 | /* Now go through the target stack looking for threads since there |
470 | may be a thread_stratum target loaded on top of target core by | |
471 | now. The layer above should claim threads found in the BFD | |
472 | sections. */ | |
492d29ea | 473 | TRY |
8e7b59a5 | 474 | { |
e8032dde | 475 | target_update_thread_list (); |
8e7b59a5 KS |
476 | } |
477 | ||
492d29ea PA |
478 | CATCH (except, RETURN_MASK_ERROR) |
479 | { | |
480 | exception_print (gdb_stderr, except); | |
481 | } | |
482 | END_CATCH | |
0de3b513 | 483 | |
c906108c SS |
484 | p = bfd_core_file_failing_command (core_bfd); |
485 | if (p) | |
a3f17187 | 486 | printf_filtered (_("Core was generated by `%s'.\n"), p); |
c906108c | 487 | |
0c557179 SDJ |
488 | /* Clearing any previous state of convenience variables. */ |
489 | clear_exit_convenience_vars (); | |
490 | ||
c906108c SS |
491 | siggy = bfd_core_file_failing_signal (core_bfd); |
492 | if (siggy > 0) | |
423ec54c | 493 | { |
15244507 PA |
494 | gdbarch *core_gdbarch = target->core_gdbarch (); |
495 | ||
22203bbf | 496 | /* If we don't have a CORE_GDBARCH to work with, assume a native |
1f8cf220 PA |
497 | core (map gdb_signal from host signals). If we do have |
498 | CORE_GDBARCH to work with, but no gdb_signal_from_target | |
499 | implementation for that gdbarch, as a fallback measure, | |
500 | assume the host signal mapping. It'll be correct for native | |
501 | cores, but most likely incorrect for cross-cores. */ | |
2ea28649 | 502 | enum gdb_signal sig = (core_gdbarch != NULL |
1f8cf220 PA |
503 | && gdbarch_gdb_signal_from_target_p (core_gdbarch) |
504 | ? gdbarch_gdb_signal_from_target (core_gdbarch, | |
505 | siggy) | |
506 | : gdb_signal_from_host (siggy)); | |
423ec54c | 507 | |
2d503272 PM |
508 | printf_filtered (_("Program terminated with signal %s, %s.\n"), |
509 | gdb_signal_to_name (sig), gdb_signal_to_string (sig)); | |
0c557179 SDJ |
510 | |
511 | /* Set the value of the internal variable $_exitsignal, | |
512 | which holds the signal uncaught by the inferior. */ | |
513 | set_internalvar_integer (lookup_internalvar ("_exitsignal"), | |
514 | siggy); | |
423ec54c | 515 | } |
c906108c | 516 | |
87ab71f0 PA |
517 | /* Fetch all registers from core file. */ |
518 | target_fetch_registers (get_current_regcache (), -1); | |
c906108c | 519 | |
87ab71f0 PA |
520 | /* Now, set up the frame cache, and print the top of stack. */ |
521 | reinit_frame_cache (); | |
08d72866 | 522 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1); |
f0e8c4c5 JK |
523 | |
524 | /* Current thread should be NUM 1 but the user does not know that. | |
525 | If a program is single threaded gdb in general does not mention | |
526 | anything about threads. That is why the test is >= 2. */ | |
527 | if (thread_count () >= 2) | |
528 | { | |
492d29ea | 529 | TRY |
f0e8c4c5 JK |
530 | { |
531 | thread_command (NULL, from_tty); | |
532 | } | |
492d29ea PA |
533 | CATCH (except, RETURN_MASK_ERROR) |
534 | { | |
535 | exception_print (gdb_stderr, except); | |
536 | } | |
537 | END_CATCH | |
f0e8c4c5 | 538 | } |
c906108c SS |
539 | } |
540 | ||
f6ac5f3d PA |
541 | void |
542 | core_target::detach (inferior *inf, int from_tty) | |
c906108c | 543 | { |
15244507 PA |
544 | /* Note that 'this' is dangling after this call. unpush_target |
545 | closes the target, and our close implementation deletes | |
546 | 'this'. */ | |
f6ac5f3d | 547 | unpush_target (this); |
15244507 | 548 | |
c906108c | 549 | reinit_frame_cache (); |
451953fa | 550 | maybe_say_no_core_file_now (from_tty); |
c906108c SS |
551 | } |
552 | ||
de57eccd | 553 | /* Try to retrieve registers from a section in core_bfd, and supply |
15244507 PA |
554 | them to m_core_vec->core_read_registers, as the register set |
555 | numbered WHICH. | |
de57eccd | 556 | |
11a33714 SM |
557 | If ptid's lwp member is zero, do the single-threaded |
558 | thing: look for a section named NAME. If ptid's lwp | |
0de3b513 PA |
559 | member is non-zero, do the multi-threaded thing: look for a section |
560 | named "NAME/LWP", where LWP is the shortest ASCII decimal | |
11a33714 | 561 | representation of ptid's lwp member. |
de57eccd JM |
562 | |
563 | HUMAN_NAME is a human-readable name for the kind of registers the | |
564 | NAME section contains, for use in error messages. | |
565 | ||
15244507 PA |
566 | If REQUIRED is true, print an error if the core file doesn't have a |
567 | section by the appropriate name. Otherwise, just do nothing. */ | |
de57eccd | 568 | |
15244507 PA |
569 | void |
570 | core_target::get_core_register_section (struct regcache *regcache, | |
571 | const struct regset *regset, | |
572 | const char *name, | |
573 | int min_size, | |
574 | int which, | |
575 | const char *human_name, | |
576 | bool required) | |
de57eccd | 577 | { |
7be0c536 | 578 | struct bfd_section *section; |
de57eccd JM |
579 | bfd_size_type size; |
580 | char *contents; | |
874a1c8c AT |
581 | bool variable_size_section = (regset != NULL |
582 | && regset->flags & REGSET_VARIABLE_SIZE); | |
de57eccd | 583 | |
3c3ae77e | 584 | thread_section_name section_name (name, regcache->ptid ()); |
de57eccd | 585 | |
3c3ae77e | 586 | section = bfd_get_section_by_name (core_bfd, section_name.c_str ()); |
de57eccd JM |
587 | if (! section) |
588 | { | |
589 | if (required) | |
aff410f1 MS |
590 | warning (_("Couldn't find %s registers in core file."), |
591 | human_name); | |
de57eccd JM |
592 | return; |
593 | } | |
594 | ||
595 | size = bfd_section_size (core_bfd, section); | |
8f0435f7 AA |
596 | if (size < min_size) |
597 | { | |
3c3ae77e PA |
598 | warning (_("Section `%s' in core file too small."), |
599 | section_name.c_str ()); | |
8f0435f7 AA |
600 | return; |
601 | } | |
874a1c8c | 602 | if (size != min_size && !variable_size_section) |
f962539a AA |
603 | { |
604 | warning (_("Unexpected size of section `%s' in core file."), | |
3c3ae77e | 605 | section_name.c_str ()); |
f962539a | 606 | } |
8f0435f7 | 607 | |
224c3ddb | 608 | contents = (char *) alloca (size); |
de57eccd JM |
609 | if (! bfd_get_section_contents (core_bfd, section, contents, |
610 | (file_ptr) 0, size)) | |
611 | { | |
8a3fe4f8 | 612 | warning (_("Couldn't read %s registers from `%s' section in core file."), |
3c3ae77e | 613 | human_name, section_name.c_str ()); |
de57eccd JM |
614 | return; |
615 | } | |
616 | ||
8f0435f7 AA |
617 | if (regset != NULL) |
618 | { | |
9eefc95f | 619 | regset->supply_regset (regset, regcache, -1, contents, size); |
0e24ac5d MK |
620 | return; |
621 | } | |
622 | ||
15244507 PA |
623 | gdb_assert (m_core_vec != nullptr); |
624 | m_core_vec->core_read_registers (regcache, contents, size, which, | |
625 | ((CORE_ADDR) | |
626 | bfd_section_vma (core_bfd, section))); | |
de57eccd JM |
627 | } |
628 | ||
15244507 PA |
629 | /* Data passed to gdbarch_iterate_over_regset_sections's callback. */ |
630 | struct get_core_registers_cb_data | |
631 | { | |
632 | core_target *target; | |
633 | struct regcache *regcache; | |
634 | }; | |
635 | ||
5aa82d05 AA |
636 | /* Callback for get_core_registers that handles a single core file |
637 | register note section. */ | |
638 | ||
639 | static void | |
640 | get_core_registers_cb (const char *sect_name, int size, | |
8f0435f7 | 641 | const struct regset *regset, |
5aa82d05 AA |
642 | const char *human_name, void *cb_data) |
643 | { | |
15244507 PA |
644 | auto *data = (get_core_registers_cb_data *) cb_data; |
645 | bool required = false; | |
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 PA |
661 | data->target->get_core_register_section (data->regcache, regset, sect_name, |
662 | size, -1, human_name, required); | |
5aa82d05 | 663 | } |
de57eccd | 664 | |
c906108c SS |
665 | /* Get the registers out of a core file. This is the machine- |
666 | independent part. Fetch_core_registers is the machine-dependent | |
aff410f1 MS |
667 | part, typically implemented in the xm-file for each |
668 | architecture. */ | |
c906108c SS |
669 | |
670 | /* We just get all the registers, so we don't use regno. */ | |
671 | ||
f6ac5f3d PA |
672 | void |
673 | core_target::fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 674 | { |
9c5ea4d9 | 675 | int i; |
5aa82d05 | 676 | struct gdbarch *gdbarch; |
c906108c | 677 | |
15244507 PA |
678 | if (!(m_core_gdbarch != nullptr |
679 | && gdbarch_iterate_over_regset_sections_p (m_core_gdbarch)) | |
680 | && (m_core_vec == NULL || m_core_vec->core_read_registers == NULL)) | |
c906108c SS |
681 | { |
682 | fprintf_filtered (gdb_stderr, | |
c5aa993b | 683 | "Can't fetch registers from this type of core file\n"); |
c906108c SS |
684 | return; |
685 | } | |
686 | ||
ac7936df | 687 | gdbarch = regcache->arch (); |
5aa82d05 | 688 | if (gdbarch_iterate_over_regset_sections_p (gdbarch)) |
15244507 PA |
689 | { |
690 | get_core_registers_cb_data data = { this, regcache }; | |
691 | gdbarch_iterate_over_regset_sections (gdbarch, | |
692 | get_core_registers_cb, | |
693 | (void *) &data, NULL); | |
694 | } | |
1b1818e4 UW |
695 | else |
696 | { | |
8f0435f7 AA |
697 | get_core_register_section (regcache, NULL, |
698 | ".reg", 0, 0, "general-purpose", 1); | |
699 | get_core_register_section (regcache, NULL, | |
700 | ".reg2", 0, 2, "floating-point", 0); | |
1b1818e4 | 701 | } |
c906108c | 702 | |
ee99023e | 703 | /* Mark all registers not found in the core as unavailable. */ |
ac7936df | 704 | for (i = 0; i < gdbarch_num_regs (regcache->arch ()); i++) |
0ec9f114 | 705 | if (regcache->get_register_status (i) == REG_UNKNOWN) |
73e1c03f | 706 | regcache->raw_supply (i, NULL); |
c906108c SS |
707 | } |
708 | ||
f6ac5f3d PA |
709 | void |
710 | core_target::files_info () | |
c906108c | 711 | { |
15244507 | 712 | print_section_info (&m_core_section_table, core_bfd); |
c906108c | 713 | } |
e2544d02 | 714 | \f |
efcbbd14 UW |
715 | struct spuid_list |
716 | { | |
717 | gdb_byte *buf; | |
718 | ULONGEST offset; | |
719 | LONGEST len; | |
720 | ULONGEST pos; | |
721 | ULONGEST written; | |
722 | }; | |
723 | ||
724 | static void | |
725 | add_to_spuid_list (bfd *abfd, asection *asect, void *list_p) | |
726 | { | |
9a3c8263 | 727 | struct spuid_list *list = (struct spuid_list *) list_p; |
efcbbd14 | 728 | enum bfd_endian byte_order |
aff410f1 | 729 | = bfd_big_endian (abfd) ? BFD_ENDIAN_BIG : BFD_ENDIAN_LITTLE; |
efcbbd14 UW |
730 | int fd, pos = 0; |
731 | ||
732 | sscanf (bfd_section_name (abfd, asect), "SPU/%d/regs%n", &fd, &pos); | |
733 | if (pos == 0) | |
734 | return; | |
735 | ||
736 | if (list->pos >= list->offset && list->pos + 4 <= list->offset + list->len) | |
737 | { | |
738 | store_unsigned_integer (list->buf + list->pos - list->offset, | |
739 | 4, byte_order, fd); | |
740 | list->written += 4; | |
741 | } | |
742 | list->pos += 4; | |
743 | } | |
744 | ||
f6ac5f3d PA |
745 | enum target_xfer_status |
746 | core_target::xfer_partial (enum target_object object, const char *annex, | |
747 | gdb_byte *readbuf, const gdb_byte *writebuf, | |
748 | ULONGEST offset, ULONGEST len, ULONGEST *xfered_len) | |
e2544d02 RM |
749 | { |
750 | switch (object) | |
751 | { | |
752 | case TARGET_OBJECT_MEMORY: | |
15244507 PA |
753 | return (section_table_xfer_memory_partial |
754 | (readbuf, writebuf, | |
755 | offset, len, xfered_len, | |
756 | m_core_section_table.sections, | |
757 | m_core_section_table.sections_end, | |
758 | NULL)); | |
e2544d02 RM |
759 | |
760 | case TARGET_OBJECT_AUXV: | |
761 | if (readbuf) | |
762 | { | |
763 | /* When the aux vector is stored in core file, BFD | |
764 | represents this with a fake section called ".auxv". */ | |
765 | ||
c4c5b7ba | 766 | struct bfd_section *section; |
e2544d02 | 767 | bfd_size_type size; |
e2544d02 RM |
768 | |
769 | section = bfd_get_section_by_name (core_bfd, ".auxv"); | |
770 | if (section == NULL) | |
2ed4b548 | 771 | return TARGET_XFER_E_IO; |
e2544d02 RM |
772 | |
773 | size = bfd_section_size (core_bfd, section); | |
774 | if (offset >= size) | |
9b409511 | 775 | return TARGET_XFER_EOF; |
e2544d02 RM |
776 | size -= offset; |
777 | if (size > len) | |
778 | size = len; | |
9b409511 YQ |
779 | |
780 | if (size == 0) | |
781 | return TARGET_XFER_EOF; | |
782 | if (!bfd_get_section_contents (core_bfd, section, readbuf, | |
783 | (file_ptr) offset, size)) | |
e2544d02 | 784 | { |
8a3fe4f8 | 785 | warning (_("Couldn't read NT_AUXV note in core file.")); |
2ed4b548 | 786 | return TARGET_XFER_E_IO; |
e2544d02 RM |
787 | } |
788 | ||
9b409511 YQ |
789 | *xfered_len = (ULONGEST) size; |
790 | return TARGET_XFER_OK; | |
e2544d02 | 791 | } |
2ed4b548 | 792 | return TARGET_XFER_E_IO; |
e2544d02 | 793 | |
403e1656 MK |
794 | case TARGET_OBJECT_WCOOKIE: |
795 | if (readbuf) | |
796 | { | |
797 | /* When the StackGhost cookie is stored in core file, BFD | |
aff410f1 MS |
798 | represents this with a fake section called |
799 | ".wcookie". */ | |
403e1656 MK |
800 | |
801 | struct bfd_section *section; | |
802 | bfd_size_type size; | |
403e1656 MK |
803 | |
804 | section = bfd_get_section_by_name (core_bfd, ".wcookie"); | |
805 | if (section == NULL) | |
2ed4b548 | 806 | return TARGET_XFER_E_IO; |
403e1656 MK |
807 | |
808 | size = bfd_section_size (core_bfd, section); | |
809 | if (offset >= size) | |
96c4f946 | 810 | return TARGET_XFER_EOF; |
403e1656 MK |
811 | size -= offset; |
812 | if (size > len) | |
813 | size = len; | |
9b409511 YQ |
814 | |
815 | if (size == 0) | |
816 | return TARGET_XFER_EOF; | |
817 | if (!bfd_get_section_contents (core_bfd, section, readbuf, | |
818 | (file_ptr) offset, size)) | |
403e1656 | 819 | { |
8a3fe4f8 | 820 | warning (_("Couldn't read StackGhost cookie in core file.")); |
2ed4b548 | 821 | return TARGET_XFER_E_IO; |
403e1656 MK |
822 | } |
823 | ||
9b409511 YQ |
824 | *xfered_len = (ULONGEST) size; |
825 | return TARGET_XFER_OK; | |
826 | ||
403e1656 | 827 | } |
2ed4b548 | 828 | return TARGET_XFER_E_IO; |
403e1656 | 829 | |
de584861 | 830 | case TARGET_OBJECT_LIBRARIES: |
15244507 PA |
831 | if (m_core_gdbarch != nullptr |
832 | && gdbarch_core_xfer_shared_libraries_p (m_core_gdbarch)) | |
de584861 PA |
833 | { |
834 | if (writebuf) | |
2ed4b548 | 835 | return TARGET_XFER_E_IO; |
9b409511 YQ |
836 | else |
837 | { | |
15244507 | 838 | *xfered_len = gdbarch_core_xfer_shared_libraries (m_core_gdbarch, |
9b409511 YQ |
839 | readbuf, |
840 | offset, len); | |
841 | ||
842 | if (*xfered_len == 0) | |
843 | return TARGET_XFER_EOF; | |
844 | else | |
845 | return TARGET_XFER_OK; | |
846 | } | |
de584861 PA |
847 | } |
848 | /* FALL THROUGH */ | |
849 | ||
356a5233 | 850 | case TARGET_OBJECT_LIBRARIES_AIX: |
15244507 PA |
851 | if (m_core_gdbarch != nullptr |
852 | && gdbarch_core_xfer_shared_libraries_aix_p (m_core_gdbarch)) | |
356a5233 JB |
853 | { |
854 | if (writebuf) | |
2ed4b548 | 855 | return TARGET_XFER_E_IO; |
9b409511 YQ |
856 | else |
857 | { | |
858 | *xfered_len | |
15244507 | 859 | = gdbarch_core_xfer_shared_libraries_aix (m_core_gdbarch, |
9b409511 YQ |
860 | readbuf, offset, |
861 | len); | |
862 | ||
863 | if (*xfered_len == 0) | |
864 | return TARGET_XFER_EOF; | |
865 | else | |
866 | return TARGET_XFER_OK; | |
867 | } | |
356a5233 JB |
868 | } |
869 | /* FALL THROUGH */ | |
870 | ||
efcbbd14 UW |
871 | case TARGET_OBJECT_SPU: |
872 | if (readbuf && annex) | |
873 | { | |
874 | /* When the SPU contexts are stored in a core file, BFD | |
aff410f1 MS |
875 | represents this with a fake section called |
876 | "SPU/<annex>". */ | |
efcbbd14 UW |
877 | |
878 | struct bfd_section *section; | |
879 | bfd_size_type size; | |
efcbbd14 | 880 | char sectionstr[100]; |
c5504eaf | 881 | |
efcbbd14 UW |
882 | xsnprintf (sectionstr, sizeof sectionstr, "SPU/%s", annex); |
883 | ||
884 | section = bfd_get_section_by_name (core_bfd, sectionstr); | |
885 | if (section == NULL) | |
2ed4b548 | 886 | return TARGET_XFER_E_IO; |
efcbbd14 UW |
887 | |
888 | size = bfd_section_size (core_bfd, section); | |
889 | if (offset >= size) | |
9b409511 | 890 | return TARGET_XFER_EOF; |
efcbbd14 UW |
891 | size -= offset; |
892 | if (size > len) | |
893 | size = len; | |
9b409511 YQ |
894 | |
895 | if (size == 0) | |
896 | return TARGET_XFER_EOF; | |
897 | if (!bfd_get_section_contents (core_bfd, section, readbuf, | |
898 | (file_ptr) offset, size)) | |
efcbbd14 UW |
899 | { |
900 | warning (_("Couldn't read SPU section in core file.")); | |
2ed4b548 | 901 | return TARGET_XFER_E_IO; |
efcbbd14 UW |
902 | } |
903 | ||
9b409511 YQ |
904 | *xfered_len = (ULONGEST) size; |
905 | return TARGET_XFER_OK; | |
efcbbd14 UW |
906 | } |
907 | else if (readbuf) | |
908 | { | |
909 | /* NULL annex requests list of all present spuids. */ | |
910 | struct spuid_list list; | |
c5504eaf | 911 | |
efcbbd14 UW |
912 | list.buf = readbuf; |
913 | list.offset = offset; | |
914 | list.len = len; | |
915 | list.pos = 0; | |
916 | list.written = 0; | |
917 | bfd_map_over_sections (core_bfd, add_to_spuid_list, &list); | |
9b409511 YQ |
918 | |
919 | if (list.written == 0) | |
920 | return TARGET_XFER_EOF; | |
921 | else | |
922 | { | |
923 | *xfered_len = (ULONGEST) list.written; | |
924 | return TARGET_XFER_OK; | |
925 | } | |
efcbbd14 | 926 | } |
2ed4b548 | 927 | return TARGET_XFER_E_IO; |
efcbbd14 | 928 | |
9015683b TT |
929 | case TARGET_OBJECT_SIGNAL_INFO: |
930 | if (readbuf) | |
9b409511 | 931 | { |
15244507 PA |
932 | if (m_core_gdbarch != nullptr |
933 | && gdbarch_core_xfer_siginfo_p (m_core_gdbarch)) | |
9b409511 | 934 | { |
15244507 | 935 | LONGEST l = gdbarch_core_xfer_siginfo (m_core_gdbarch, readbuf, |
382b69bb JB |
936 | offset, len); |
937 | ||
938 | if (l >= 0) | |
939 | { | |
940 | *xfered_len = l; | |
941 | if (l == 0) | |
942 | return TARGET_XFER_EOF; | |
943 | else | |
944 | return TARGET_XFER_OK; | |
945 | } | |
9b409511 YQ |
946 | } |
947 | } | |
2ed4b548 | 948 | return TARGET_XFER_E_IO; |
9015683b | 949 | |
e2544d02 | 950 | default: |
b6a8c27b PA |
951 | return this->beneath ()->xfer_partial (object, annex, readbuf, |
952 | writebuf, offset, len, | |
953 | xfered_len); | |
e2544d02 RM |
954 | } |
955 | } | |
956 | ||
c906108c | 957 | \f |
c906108c SS |
958 | |
959 | /* Okay, let's be honest: threads gleaned from a core file aren't | |
960 | exactly lively, are they? On the other hand, if we don't claim | |
961 | that each & every one is alive, then we don't get any of them | |
962 | to appear in an "info thread" command, which is quite a useful | |
963 | behaviour. | |
c5aa993b | 964 | */ |
57810aa7 | 965 | bool |
f6ac5f3d | 966 | core_target::thread_alive (ptid_t ptid) |
c906108c | 967 | { |
57810aa7 | 968 | return true; |
c906108c SS |
969 | } |
970 | ||
4eb0ad19 DJ |
971 | /* Ask the current architecture what it knows about this core file. |
972 | That will be used, in turn, to pick a better architecture. This | |
973 | wrapper could be avoided if targets got a chance to specialize | |
15244507 | 974 | core_target. */ |
4eb0ad19 | 975 | |
f6ac5f3d PA |
976 | const struct target_desc * |
977 | core_target::read_description () | |
4eb0ad19 | 978 | { |
15244507 | 979 | if (m_core_gdbarch && gdbarch_core_read_description_p (m_core_gdbarch)) |
2117c711 TT |
980 | { |
981 | const struct target_desc *result; | |
982 | ||
15244507 | 983 | result = gdbarch_core_read_description (m_core_gdbarch, this, core_bfd); |
2117c711 TT |
984 | if (result != NULL) |
985 | return result; | |
986 | } | |
4eb0ad19 | 987 | |
b6a8c27b | 988 | return this->beneath ()->read_description (); |
4eb0ad19 DJ |
989 | } |
990 | ||
f6ac5f3d PA |
991 | const char * |
992 | core_target::pid_to_str (ptid_t ptid) | |
0de3b513 PA |
993 | { |
994 | static char buf[64]; | |
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 PA |
1018 | /* No luck. We simply don't have a valid PID to print. */ |
1019 | xsnprintf (buf, sizeof buf, "<main task>"); | |
0de3b513 PA |
1020 | return buf; |
1021 | } | |
1022 | ||
f6ac5f3d PA |
1023 | const char * |
1024 | core_target::thread_name (struct thread_info *thr) | |
4dfc5dbc | 1025 | { |
15244507 PA |
1026 | if (m_core_gdbarch != nullptr |
1027 | && gdbarch_core_thread_name_p (m_core_gdbarch)) | |
1028 | return gdbarch_core_thread_name (m_core_gdbarch, thr); | |
4dfc5dbc JB |
1029 | return NULL; |
1030 | } | |
1031 | ||
57810aa7 | 1032 | bool |
f6ac5f3d | 1033 | core_target::has_memory () |
c35b1492 PA |
1034 | { |
1035 | return (core_bfd != NULL); | |
1036 | } | |
1037 | ||
57810aa7 | 1038 | bool |
f6ac5f3d | 1039 | core_target::has_stack () |
c35b1492 PA |
1040 | { |
1041 | return (core_bfd != NULL); | |
1042 | } | |
1043 | ||
57810aa7 | 1044 | bool |
f6ac5f3d | 1045 | core_target::has_registers () |
c35b1492 PA |
1046 | { |
1047 | return (core_bfd != NULL); | |
1048 | } | |
1049 | ||
451b7c33 TT |
1050 | /* Implement the to_info_proc method. */ |
1051 | ||
f6ac5f3d PA |
1052 | bool |
1053 | core_target::info_proc (const char *args, enum info_proc_what request) | |
451b7c33 TT |
1054 | { |
1055 | struct gdbarch *gdbarch = get_current_arch (); | |
1056 | ||
1057 | /* Since this is the core file target, call the 'core_info_proc' | |
1058 | method on gdbarch, not 'info_proc'. */ | |
1059 | if (gdbarch_core_info_proc_p (gdbarch)) | |
1060 | gdbarch_core_info_proc (gdbarch, args, request); | |
c906108c | 1061 | |
f6ac5f3d | 1062 | return true; |
c906108c SS |
1063 | } |
1064 | ||
c906108c | 1065 | void |
fba45db2 | 1066 | _initialize_corelow (void) |
c906108c | 1067 | { |
d9f719f1 | 1068 | add_target (core_target_info, core_target_open, filename_completer); |
c906108c | 1069 | } |