Commit | Line | Data |
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c906108c | 1 | /* Core dump and executable file functions below target vector, for GDB. |
4646aa9d | 2 | |
61baf725 | 3 | Copyright (C) 1986-2017 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 | ||
00e32a35 AC |
53 | /* List of all available core_fns. On gdb startup, each core file |
54 | register reader calls deprecated_add_core_fns() to register | |
55 | information on each core format it is prepared to read. */ | |
c906108c SS |
56 | |
57 | static struct core_fns *core_file_fns = NULL; | |
58 | ||
aff410f1 MS |
59 | /* The core_fns for a core file handler that is prepared to read the |
60 | core file currently open on core_bfd. */ | |
2acceee2 JM |
61 | |
62 | static struct core_fns *core_vec = NULL; | |
63 | ||
0e24ac5d MK |
64 | /* FIXME: kettenis/20031023: Eventually this variable should |
65 | disappear. */ | |
66 | ||
6a3bfc5c | 67 | static struct gdbarch *core_gdbarch = NULL; |
0e24ac5d | 68 | |
07b82ea5 PA |
69 | /* Per-core data. Currently, only the section table. Note that these |
70 | target sections are *not* mapped in the current address spaces' set | |
71 | of target sections --- those should come only from pure executable | |
72 | or shared library bfds. The core bfd sections are an | |
73 | implementation detail of the core target, just like ptrace is for | |
74 | unix child targets. */ | |
75 | static struct target_section_table *core_data; | |
76 | ||
a14ed312 | 77 | static void core_files_info (struct target_ops *); |
c906108c | 78 | |
a14ed312 | 79 | static struct core_fns *sniff_core_bfd (bfd *); |
2acceee2 | 80 | |
020cc13c | 81 | static int gdb_check_format (bfd *); |
2acceee2 | 82 | |
de90e03d | 83 | static void core_close (struct target_ops *self); |
c906108c | 84 | |
74b7792f AC |
85 | static void core_close_cleanup (void *ignore); |
86 | ||
4efb68b1 | 87 | static void add_to_thread_list (bfd *, asection *, void *); |
c906108c | 88 | |
a14ed312 | 89 | static void init_core_ops (void); |
c906108c | 90 | |
c0edd9ed | 91 | static struct target_ops core_ops; |
c906108c | 92 | |
7f9f62ba PA |
93 | /* An arbitrary identifier for the core inferior. */ |
94 | #define CORELOW_PID 1 | |
95 | ||
aff410f1 MS |
96 | /* Link a new core_fns into the global core_file_fns list. Called on |
97 | gdb startup by the _initialize routine in each core file register | |
b021a221 | 98 | reader, to register information about each format the reader is |
aff410f1 | 99 | prepared to handle. */ |
c906108c SS |
100 | |
101 | void | |
00e32a35 | 102 | deprecated_add_core_fns (struct core_fns *cf) |
c906108c | 103 | { |
c5aa993b | 104 | cf->next = core_file_fns; |
c906108c SS |
105 | core_file_fns = cf; |
106 | } | |
107 | ||
2acceee2 JM |
108 | /* The default function that core file handlers can use to examine a |
109 | core file BFD and decide whether or not to accept the job of | |
aff410f1 | 110 | reading the core file. */ |
2acceee2 JM |
111 | |
112 | int | |
fba45db2 | 113 | default_core_sniffer (struct core_fns *our_fns, bfd *abfd) |
2acceee2 JM |
114 | { |
115 | int result; | |
116 | ||
117 | result = (bfd_get_flavour (abfd) == our_fns -> core_flavour); | |
118 | return (result); | |
119 | } | |
120 | ||
121 | /* Walk through the list of core functions to find a set that can | |
06b9f45f | 122 | handle the core file open on ABFD. Returns pointer to set that is |
aff410f1 | 123 | selected. */ |
2acceee2 JM |
124 | |
125 | static struct core_fns * | |
fba45db2 | 126 | sniff_core_bfd (bfd *abfd) |
2acceee2 JM |
127 | { |
128 | struct core_fns *cf; | |
129 | struct core_fns *yummy = NULL; | |
45eba0ab | 130 | int matches = 0; |
2acceee2 | 131 | |
aff410f1 MS |
132 | /* Don't sniff if we have support for register sets in |
133 | CORE_GDBARCH. */ | |
29082443 | 134 | if (core_gdbarch && gdbarch_iterate_over_regset_sections_p (core_gdbarch)) |
0e24ac5d MK |
135 | return NULL; |
136 | ||
2acceee2 JM |
137 | for (cf = core_file_fns; cf != NULL; cf = cf->next) |
138 | { | |
139 | if (cf->core_sniffer (cf, abfd)) | |
140 | { | |
141 | yummy = cf; | |
142 | matches++; | |
143 | } | |
144 | } | |
145 | if (matches > 1) | |
146 | { | |
8a3fe4f8 | 147 | warning (_("\"%s\": ambiguous core format, %d handlers match"), |
2acceee2 JM |
148 | bfd_get_filename (abfd), matches); |
149 | } | |
150 | else if (matches == 0) | |
06b9f45f JK |
151 | error (_("\"%s\": no core file handler recognizes format"), |
152 | bfd_get_filename (abfd)); | |
153 | ||
2acceee2 JM |
154 | return (yummy); |
155 | } | |
156 | ||
157 | /* The default is to reject every core file format we see. Either | |
158 | BFD has to recognize it, or we have to provide a function in the | |
aff410f1 | 159 | core file handler that recognizes it. */ |
2acceee2 JM |
160 | |
161 | int | |
fba45db2 | 162 | default_check_format (bfd *abfd) |
2acceee2 JM |
163 | { |
164 | return (0); | |
165 | } | |
166 | ||
aff410f1 | 167 | /* Attempt to recognize core file formats that BFD rejects. */ |
2acceee2 | 168 | |
020cc13c | 169 | static int |
fba45db2 | 170 | gdb_check_format (bfd *abfd) |
2acceee2 JM |
171 | { |
172 | struct core_fns *cf; | |
173 | ||
174 | for (cf = core_file_fns; cf != NULL; cf = cf->next) | |
175 | { | |
176 | if (cf->check_format (abfd)) | |
177 | { | |
81a9a963 | 178 | return (1); |
2acceee2 JM |
179 | } |
180 | } | |
81a9a963 | 181 | return (0); |
2acceee2 | 182 | } |
c906108c | 183 | |
aff410f1 MS |
184 | /* Discard all vestiges of any previous core file and mark data and |
185 | stack spaces as empty. */ | |
c906108c | 186 | |
c906108c | 187 | static void |
de90e03d | 188 | core_close (struct target_ops *self) |
c906108c | 189 | { |
c906108c SS |
190 | if (core_bfd) |
191 | { | |
959b8724 | 192 | int pid = ptid_get_pid (inferior_ptid); |
aff410f1 MS |
193 | inferior_ptid = null_ptid; /* Avoid confusion from thread |
194 | stuff. */ | |
06b9f45f JK |
195 | if (pid != 0) |
196 | exit_inferior_silent (pid); | |
c906108c | 197 | |
aff410f1 MS |
198 | /* Clear out solib state while the bfd is still open. See |
199 | comments in clear_solib in solib.c. */ | |
a77053c2 | 200 | clear_solib (); |
7a292a7a | 201 | |
06b9f45f JK |
202 | if (core_data) |
203 | { | |
204 | xfree (core_data->sections); | |
205 | xfree (core_data); | |
206 | core_data = NULL; | |
207 | } | |
07b82ea5 | 208 | |
cbb099e8 | 209 | gdb_bfd_unref (core_bfd); |
c906108c | 210 | core_bfd = NULL; |
c906108c | 211 | } |
2acceee2 | 212 | core_vec = NULL; |
0e24ac5d | 213 | core_gdbarch = NULL; |
c906108c SS |
214 | } |
215 | ||
74b7792f AC |
216 | static void |
217 | core_close_cleanup (void *ignore) | |
218 | { | |
de90e03d | 219 | core_close (NULL); |
74b7792f AC |
220 | } |
221 | ||
aff410f1 MS |
222 | /* Look for sections whose names start with `.reg/' so that we can |
223 | extract the list of threads in a core file. */ | |
c906108c SS |
224 | |
225 | static void | |
4efb68b1 | 226 | add_to_thread_list (bfd *abfd, asection *asect, void *reg_sect_arg) |
c906108c | 227 | { |
0de3b513 | 228 | ptid_t ptid; |
3cdd9356 PA |
229 | int core_tid; |
230 | int pid, lwpid; | |
c906108c | 231 | asection *reg_sect = (asection *) reg_sect_arg; |
88f38a04 PA |
232 | int fake_pid_p = 0; |
233 | struct inferior *inf; | |
c906108c | 234 | |
61012eef | 235 | if (!startswith (bfd_section_name (abfd, asect), ".reg/")) |
c906108c SS |
236 | return; |
237 | ||
3cdd9356 | 238 | core_tid = atoi (bfd_section_name (abfd, asect) + 5); |
c906108c | 239 | |
261b8d08 PA |
240 | pid = bfd_core_file_pid (core_bfd); |
241 | if (pid == 0) | |
3cdd9356 | 242 | { |
88f38a04 | 243 | fake_pid_p = 1; |
3cdd9356 | 244 | pid = CORELOW_PID; |
3cdd9356 | 245 | } |
0de3b513 | 246 | |
261b8d08 PA |
247 | lwpid = core_tid; |
248 | ||
88f38a04 PA |
249 | inf = current_inferior (); |
250 | if (inf->pid == 0) | |
251 | { | |
252 | inferior_appeared (inf, pid); | |
253 | inf->fake_pid_p = fake_pid_p; | |
254 | } | |
3cdd9356 PA |
255 | |
256 | ptid = ptid_build (pid, lwpid, 0); | |
257 | ||
258 | add_thread (ptid); | |
c906108c SS |
259 | |
260 | /* Warning, Will Robinson, looking at BFD private data! */ | |
261 | ||
262 | if (reg_sect != NULL | |
aff410f1 MS |
263 | && asect->filepos == reg_sect->filepos) /* Did we find .reg? */ |
264 | inferior_ptid = ptid; /* Yes, make it current. */ | |
c906108c SS |
265 | } |
266 | ||
267 | /* This routine opens and sets up the core file bfd. */ | |
268 | ||
269 | static void | |
014f9477 | 270 | core_open (const char *arg, int from_tty) |
c906108c SS |
271 | { |
272 | const char *p; | |
273 | int siggy; | |
274 | struct cleanup *old_chain; | |
c906108c | 275 | int scratch_chan; |
ee28ca0f | 276 | int flags; |
c906108c SS |
277 | |
278 | target_preopen (from_tty); | |
014f9477 | 279 | if (!arg) |
c906108c | 280 | { |
8a3fe4f8 | 281 | if (core_bfd) |
3e43a32a MS |
282 | error (_("No core file specified. (Use `detach' " |
283 | "to stop debugging a core file.)")); | |
8a3fe4f8 AC |
284 | else |
285 | error (_("No core file specified.")); | |
c906108c SS |
286 | } |
287 | ||
ee0c3293 TT |
288 | gdb::unique_xmalloc_ptr<char> filename (tilde_expand (arg)); |
289 | if (!IS_ABSOLUTE_PATH (filename.get ())) | |
290 | filename.reset (concat (current_directory, "/", | |
291 | filename.get (), (char *) NULL)); | |
c906108c | 292 | |
ee28ca0f AC |
293 | flags = O_BINARY | O_LARGEFILE; |
294 | if (write_files) | |
295 | flags |= O_RDWR; | |
296 | else | |
297 | flags |= O_RDONLY; | |
ee0c3293 | 298 | scratch_chan = gdb_open_cloexec (filename.get (), flags, 0); |
c906108c | 299 | if (scratch_chan < 0) |
ee0c3293 | 300 | perror_with_name (filename.get ()); |
c906108c | 301 | |
ee0c3293 | 302 | gdb_bfd_ref_ptr temp_bfd (gdb_bfd_fopen (filename.get (), gnutarget, |
192b62ce TT |
303 | write_files ? FOPEN_RUB : FOPEN_RB, |
304 | scratch_chan)); | |
c906108c | 305 | if (temp_bfd == NULL) |
ee0c3293 | 306 | perror_with_name (filename.get ()); |
c906108c | 307 | |
192b62ce TT |
308 | if (!bfd_check_format (temp_bfd.get (), bfd_core) |
309 | && !gdb_check_format (temp_bfd.get ())) | |
c906108c SS |
310 | { |
311 | /* Do it after the err msg */ | |
aff410f1 MS |
312 | /* FIXME: should be checking for errors from bfd_close (for one |
313 | thing, on error it does not free all the storage associated | |
314 | with the bfd). */ | |
8a3fe4f8 | 315 | error (_("\"%s\" is not a core dump: %s"), |
ee0c3293 | 316 | filename.get (), bfd_errmsg (bfd_get_error ())); |
c906108c SS |
317 | } |
318 | ||
aff410f1 MS |
319 | /* Looks semi-reasonable. Toss the old core file and work on the |
320 | new. */ | |
c906108c | 321 | |
c906108c | 322 | unpush_target (&core_ops); |
192b62ce | 323 | core_bfd = temp_bfd.release (); |
74b7792f | 324 | old_chain = make_cleanup (core_close_cleanup, 0 /*ignore*/); |
c906108c | 325 | |
0e24ac5d MK |
326 | core_gdbarch = gdbarch_from_bfd (core_bfd); |
327 | ||
2acceee2 JM |
328 | /* Find a suitable core file handler to munch on core_bfd */ |
329 | core_vec = sniff_core_bfd (core_bfd); | |
330 | ||
c906108c SS |
331 | validate_files (); |
332 | ||
41bf6aca | 333 | core_data = XCNEW (struct target_section_table); |
07b82ea5 | 334 | |
c906108c | 335 | /* Find the data section */ |
07b82ea5 | 336 | if (build_section_table (core_bfd, |
aff410f1 MS |
337 | &core_data->sections, |
338 | &core_data->sections_end)) | |
8a3fe4f8 | 339 | error (_("\"%s\": Can't find sections: %s"), |
c906108c SS |
340 | bfd_get_filename (core_bfd), bfd_errmsg (bfd_get_error ())); |
341 | ||
2f1b5984 MK |
342 | /* If we have no exec file, try to set the architecture from the |
343 | core file. We don't do this unconditionally since an exec file | |
344 | typically contains more information that helps us determine the | |
345 | architecture than a core file. */ | |
346 | if (!exec_bfd) | |
347 | set_gdbarch_from_file (core_bfd); | |
cbda0a99 | 348 | |
87ab71f0 | 349 | push_target (&core_ops); |
c906108c SS |
350 | discard_cleanups (old_chain); |
351 | ||
0de3b513 PA |
352 | /* Do this before acknowledging the inferior, so if |
353 | post_create_inferior throws (can happen easilly if you're loading | |
354 | a core file with the wrong exec), we aren't left with threads | |
355 | from the previous inferior. */ | |
356 | init_thread_list (); | |
357 | ||
3cdd9356 | 358 | inferior_ptid = null_ptid; |
0de3b513 | 359 | |
739fc47a PA |
360 | /* Need to flush the register cache (and the frame cache) from a |
361 | previous debug session. If inferior_ptid ends up the same as the | |
362 | last debug session --- e.g., b foo; run; gcore core1; step; gcore | |
363 | core2; core core1; core core2 --- then there's potential for | |
364 | get_current_regcache to return the cached regcache of the | |
365 | previous session, and the frame cache being stale. */ | |
366 | registers_changed (); | |
367 | ||
0de3b513 PA |
368 | /* Build up thread list from BFD sections, and possibly set the |
369 | current thread to the .reg/NN section matching the .reg | |
aff410f1 | 370 | section. */ |
0de3b513 PA |
371 | bfd_map_over_sections (core_bfd, add_to_thread_list, |
372 | bfd_get_section_by_name (core_bfd, ".reg")); | |
373 | ||
3cdd9356 PA |
374 | if (ptid_equal (inferior_ptid, null_ptid)) |
375 | { | |
376 | /* Either we found no .reg/NN section, and hence we have a | |
377 | non-threaded core (single-threaded, from gdb's perspective), | |
378 | or for some reason add_to_thread_list couldn't determine | |
379 | which was the "main" thread. The latter case shouldn't | |
380 | usually happen, but we're dealing with input here, which can | |
381 | always be broken in different ways. */ | |
382 | struct thread_info *thread = first_thread_of_process (-1); | |
c5504eaf | 383 | |
3cdd9356 PA |
384 | if (thread == NULL) |
385 | { | |
c45ceae0 | 386 | inferior_appeared (current_inferior (), CORELOW_PID); |
3cdd9356 PA |
387 | inferior_ptid = pid_to_ptid (CORELOW_PID); |
388 | add_thread_silent (inferior_ptid); | |
389 | } | |
390 | else | |
391 | switch_to_thread (thread->ptid); | |
392 | } | |
393 | ||
959b8724 PA |
394 | post_create_inferior (&core_ops, from_tty); |
395 | ||
0de3b513 PA |
396 | /* Now go through the target stack looking for threads since there |
397 | may be a thread_stratum target loaded on top of target core by | |
398 | now. The layer above should claim threads found in the BFD | |
399 | sections. */ | |
492d29ea | 400 | TRY |
8e7b59a5 | 401 | { |
e8032dde | 402 | target_update_thread_list (); |
8e7b59a5 KS |
403 | } |
404 | ||
492d29ea PA |
405 | CATCH (except, RETURN_MASK_ERROR) |
406 | { | |
407 | exception_print (gdb_stderr, except); | |
408 | } | |
409 | END_CATCH | |
0de3b513 | 410 | |
c906108c SS |
411 | p = bfd_core_file_failing_command (core_bfd); |
412 | if (p) | |
a3f17187 | 413 | printf_filtered (_("Core was generated by `%s'.\n"), p); |
c906108c | 414 | |
0c557179 SDJ |
415 | /* Clearing any previous state of convenience variables. */ |
416 | clear_exit_convenience_vars (); | |
417 | ||
c906108c SS |
418 | siggy = bfd_core_file_failing_signal (core_bfd); |
419 | if (siggy > 0) | |
423ec54c | 420 | { |
22203bbf | 421 | /* If we don't have a CORE_GDBARCH to work with, assume a native |
1f8cf220 PA |
422 | core (map gdb_signal from host signals). If we do have |
423 | CORE_GDBARCH to work with, but no gdb_signal_from_target | |
424 | implementation for that gdbarch, as a fallback measure, | |
425 | assume the host signal mapping. It'll be correct for native | |
426 | cores, but most likely incorrect for cross-cores. */ | |
2ea28649 | 427 | enum gdb_signal sig = (core_gdbarch != NULL |
1f8cf220 PA |
428 | && gdbarch_gdb_signal_from_target_p (core_gdbarch) |
429 | ? gdbarch_gdb_signal_from_target (core_gdbarch, | |
430 | siggy) | |
431 | : gdb_signal_from_host (siggy)); | |
423ec54c | 432 | |
2d503272 PM |
433 | printf_filtered (_("Program terminated with signal %s, %s.\n"), |
434 | gdb_signal_to_name (sig), gdb_signal_to_string (sig)); | |
0c557179 SDJ |
435 | |
436 | /* Set the value of the internal variable $_exitsignal, | |
437 | which holds the signal uncaught by the inferior. */ | |
438 | set_internalvar_integer (lookup_internalvar ("_exitsignal"), | |
439 | siggy); | |
423ec54c | 440 | } |
c906108c | 441 | |
87ab71f0 PA |
442 | /* Fetch all registers from core file. */ |
443 | target_fetch_registers (get_current_regcache (), -1); | |
c906108c | 444 | |
87ab71f0 PA |
445 | /* Now, set up the frame cache, and print the top of stack. */ |
446 | reinit_frame_cache (); | |
08d72866 | 447 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1); |
f0e8c4c5 JK |
448 | |
449 | /* Current thread should be NUM 1 but the user does not know that. | |
450 | If a program is single threaded gdb in general does not mention | |
451 | anything about threads. That is why the test is >= 2. */ | |
452 | if (thread_count () >= 2) | |
453 | { | |
492d29ea | 454 | TRY |
f0e8c4c5 JK |
455 | { |
456 | thread_command (NULL, from_tty); | |
457 | } | |
492d29ea PA |
458 | CATCH (except, RETURN_MASK_ERROR) |
459 | { | |
460 | exception_print (gdb_stderr, except); | |
461 | } | |
462 | END_CATCH | |
f0e8c4c5 | 463 | } |
c906108c SS |
464 | } |
465 | ||
466 | static void | |
52554a0e | 467 | core_detach (struct target_ops *ops, const char *args, int from_tty) |
c906108c SS |
468 | { |
469 | if (args) | |
8a3fe4f8 | 470 | error (_("Too many arguments")); |
136d6dae | 471 | unpush_target (ops); |
c906108c SS |
472 | reinit_frame_cache (); |
473 | if (from_tty) | |
a3f17187 | 474 | printf_filtered (_("No core file now.\n")); |
c906108c SS |
475 | } |
476 | ||
de57eccd JM |
477 | /* Try to retrieve registers from a section in core_bfd, and supply |
478 | them to core_vec->core_read_registers, as the register set numbered | |
479 | WHICH. | |
480 | ||
11a33714 SM |
481 | If ptid's lwp member is zero, do the single-threaded |
482 | thing: look for a section named NAME. If ptid's lwp | |
0de3b513 PA |
483 | member is non-zero, do the multi-threaded thing: look for a section |
484 | named "NAME/LWP", where LWP is the shortest ASCII decimal | |
11a33714 | 485 | representation of ptid's lwp member. |
de57eccd JM |
486 | |
487 | HUMAN_NAME is a human-readable name for the kind of registers the | |
488 | NAME section contains, for use in error messages. | |
489 | ||
490 | If REQUIRED is non-zero, print an error if the core file doesn't | |
aff410f1 MS |
491 | have a section by the appropriate name. Otherwise, just do |
492 | nothing. */ | |
de57eccd JM |
493 | |
494 | static void | |
9eefc95f | 495 | get_core_register_section (struct regcache *regcache, |
8f0435f7 | 496 | const struct regset *regset, |
1b1818e4 | 497 | const char *name, |
8f0435f7 | 498 | int min_size, |
de57eccd | 499 | int which, |
1b1818e4 | 500 | const char *human_name, |
de57eccd JM |
501 | int required) |
502 | { | |
7be0c536 | 503 | struct bfd_section *section; |
de57eccd JM |
504 | bfd_size_type size; |
505 | char *contents; | |
874a1c8c AT |
506 | bool variable_size_section = (regset != NULL |
507 | && regset->flags & REGSET_VARIABLE_SIZE); | |
de57eccd | 508 | |
3c3ae77e | 509 | thread_section_name section_name (name, regcache->ptid ()); |
de57eccd | 510 | |
3c3ae77e | 511 | section = bfd_get_section_by_name (core_bfd, section_name.c_str ()); |
de57eccd JM |
512 | if (! section) |
513 | { | |
514 | if (required) | |
aff410f1 MS |
515 | warning (_("Couldn't find %s registers in core file."), |
516 | human_name); | |
de57eccd JM |
517 | return; |
518 | } | |
519 | ||
520 | size = bfd_section_size (core_bfd, section); | |
8f0435f7 AA |
521 | if (size < min_size) |
522 | { | |
3c3ae77e PA |
523 | warning (_("Section `%s' in core file too small."), |
524 | section_name.c_str ()); | |
8f0435f7 AA |
525 | return; |
526 | } | |
874a1c8c | 527 | if (size != min_size && !variable_size_section) |
f962539a AA |
528 | { |
529 | warning (_("Unexpected size of section `%s' in core file."), | |
3c3ae77e | 530 | section_name.c_str ()); |
f962539a | 531 | } |
8f0435f7 | 532 | |
224c3ddb | 533 | contents = (char *) alloca (size); |
de57eccd JM |
534 | if (! bfd_get_section_contents (core_bfd, section, contents, |
535 | (file_ptr) 0, size)) | |
536 | { | |
8a3fe4f8 | 537 | warning (_("Couldn't read %s registers from `%s' section in core file."), |
3c3ae77e | 538 | human_name, section_name.c_str ()); |
de57eccd JM |
539 | return; |
540 | } | |
541 | ||
8f0435f7 AA |
542 | if (regset != NULL) |
543 | { | |
9eefc95f | 544 | regset->supply_regset (regset, regcache, -1, contents, size); |
0e24ac5d MK |
545 | return; |
546 | } | |
547 | ||
548 | gdb_assert (core_vec); | |
9eefc95f | 549 | core_vec->core_read_registers (regcache, contents, size, which, |
de57eccd JM |
550 | ((CORE_ADDR) |
551 | bfd_section_vma (core_bfd, section))); | |
552 | } | |
553 | ||
5aa82d05 AA |
554 | /* Callback for get_core_registers that handles a single core file |
555 | register note section. */ | |
556 | ||
557 | static void | |
558 | get_core_registers_cb (const char *sect_name, int size, | |
8f0435f7 | 559 | const struct regset *regset, |
5aa82d05 AA |
560 | const char *human_name, void *cb_data) |
561 | { | |
562 | struct regcache *regcache = (struct regcache *) cb_data; | |
8f0435f7 | 563 | int required = 0; |
5aa82d05 AA |
564 | |
565 | if (strcmp (sect_name, ".reg") == 0) | |
8f0435f7 AA |
566 | { |
567 | required = 1; | |
568 | if (human_name == NULL) | |
569 | human_name = "general-purpose"; | |
570 | } | |
5aa82d05 | 571 | else if (strcmp (sect_name, ".reg2") == 0) |
8f0435f7 AA |
572 | { |
573 | if (human_name == NULL) | |
574 | human_name = "floating-point"; | |
575 | } | |
576 | ||
577 | /* The 'which' parameter is only used when no regset is provided. | |
578 | Thus we just set it to -1. */ | |
579 | get_core_register_section (regcache, regset, sect_name, | |
580 | size, -1, human_name, required); | |
5aa82d05 | 581 | } |
de57eccd | 582 | |
c906108c SS |
583 | /* Get the registers out of a core file. This is the machine- |
584 | independent part. Fetch_core_registers is the machine-dependent | |
aff410f1 MS |
585 | part, typically implemented in the xm-file for each |
586 | architecture. */ | |
c906108c SS |
587 | |
588 | /* We just get all the registers, so we don't use regno. */ | |
589 | ||
c906108c | 590 | static void |
28439f5e PA |
591 | get_core_registers (struct target_ops *ops, |
592 | struct regcache *regcache, int regno) | |
c906108c | 593 | { |
9c5ea4d9 | 594 | int i; |
5aa82d05 | 595 | struct gdbarch *gdbarch; |
c906108c | 596 | |
29082443 | 597 | if (!(core_gdbarch && gdbarch_iterate_over_regset_sections_p (core_gdbarch)) |
0e24ac5d | 598 | && (core_vec == NULL || core_vec->core_read_registers == NULL)) |
c906108c SS |
599 | { |
600 | fprintf_filtered (gdb_stderr, | |
c5aa993b | 601 | "Can't fetch registers from this type of core file\n"); |
c906108c SS |
602 | return; |
603 | } | |
604 | ||
ac7936df | 605 | gdbarch = regcache->arch (); |
5aa82d05 AA |
606 | if (gdbarch_iterate_over_regset_sections_p (gdbarch)) |
607 | gdbarch_iterate_over_regset_sections (gdbarch, | |
608 | get_core_registers_cb, | |
609 | (void *) regcache, NULL); | |
1b1818e4 UW |
610 | else |
611 | { | |
8f0435f7 AA |
612 | get_core_register_section (regcache, NULL, |
613 | ".reg", 0, 0, "general-purpose", 1); | |
614 | get_core_register_section (regcache, NULL, | |
615 | ".reg2", 0, 2, "floating-point", 0); | |
1b1818e4 | 616 | } |
c906108c | 617 | |
ee99023e | 618 | /* Mark all registers not found in the core as unavailable. */ |
ac7936df | 619 | for (i = 0; i < gdbarch_num_regs (regcache->arch ()); i++) |
ee99023e | 620 | if (regcache_register_status (regcache, i) == REG_UNKNOWN) |
9c5ea4d9 | 621 | regcache_raw_supply (regcache, i, NULL); |
c906108c SS |
622 | } |
623 | ||
c906108c | 624 | static void |
fba45db2 | 625 | core_files_info (struct target_ops *t) |
c906108c | 626 | { |
07b82ea5 | 627 | print_section_info (core_data, core_bfd); |
c906108c | 628 | } |
e2544d02 | 629 | \f |
efcbbd14 UW |
630 | struct spuid_list |
631 | { | |
632 | gdb_byte *buf; | |
633 | ULONGEST offset; | |
634 | LONGEST len; | |
635 | ULONGEST pos; | |
636 | ULONGEST written; | |
637 | }; | |
638 | ||
639 | static void | |
640 | add_to_spuid_list (bfd *abfd, asection *asect, void *list_p) | |
641 | { | |
9a3c8263 | 642 | struct spuid_list *list = (struct spuid_list *) list_p; |
efcbbd14 | 643 | enum bfd_endian byte_order |
aff410f1 | 644 | = bfd_big_endian (abfd) ? BFD_ENDIAN_BIG : BFD_ENDIAN_LITTLE; |
efcbbd14 UW |
645 | int fd, pos = 0; |
646 | ||
647 | sscanf (bfd_section_name (abfd, asect), "SPU/%d/regs%n", &fd, &pos); | |
648 | if (pos == 0) | |
649 | return; | |
650 | ||
651 | if (list->pos >= list->offset && list->pos + 4 <= list->offset + list->len) | |
652 | { | |
653 | store_unsigned_integer (list->buf + list->pos - list->offset, | |
654 | 4, byte_order, fd); | |
655 | list->written += 4; | |
656 | } | |
657 | list->pos += 4; | |
658 | } | |
659 | ||
9b409511 | 660 | static enum target_xfer_status |
e2544d02 | 661 | core_xfer_partial (struct target_ops *ops, enum target_object object, |
961cb7b5 | 662 | const char *annex, gdb_byte *readbuf, |
aff410f1 | 663 | const gdb_byte *writebuf, ULONGEST offset, |
9b409511 | 664 | ULONGEST len, ULONGEST *xfered_len) |
e2544d02 RM |
665 | { |
666 | switch (object) | |
667 | { | |
668 | case TARGET_OBJECT_MEMORY: | |
07b82ea5 | 669 | return section_table_xfer_memory_partial (readbuf, writebuf, |
9b409511 | 670 | offset, len, xfered_len, |
07b82ea5 PA |
671 | core_data->sections, |
672 | core_data->sections_end, | |
673 | NULL); | |
e2544d02 RM |
674 | |
675 | case TARGET_OBJECT_AUXV: | |
676 | if (readbuf) | |
677 | { | |
678 | /* When the aux vector is stored in core file, BFD | |
679 | represents this with a fake section called ".auxv". */ | |
680 | ||
c4c5b7ba | 681 | struct bfd_section *section; |
e2544d02 | 682 | bfd_size_type size; |
e2544d02 RM |
683 | |
684 | section = bfd_get_section_by_name (core_bfd, ".auxv"); | |
685 | if (section == NULL) | |
2ed4b548 | 686 | return TARGET_XFER_E_IO; |
e2544d02 RM |
687 | |
688 | size = bfd_section_size (core_bfd, section); | |
689 | if (offset >= size) | |
9b409511 | 690 | return TARGET_XFER_EOF; |
e2544d02 RM |
691 | size -= offset; |
692 | if (size > len) | |
693 | size = len; | |
9b409511 YQ |
694 | |
695 | if (size == 0) | |
696 | return TARGET_XFER_EOF; | |
697 | if (!bfd_get_section_contents (core_bfd, section, readbuf, | |
698 | (file_ptr) offset, size)) | |
e2544d02 | 699 | { |
8a3fe4f8 | 700 | warning (_("Couldn't read NT_AUXV note in core file.")); |
2ed4b548 | 701 | return TARGET_XFER_E_IO; |
e2544d02 RM |
702 | } |
703 | ||
9b409511 YQ |
704 | *xfered_len = (ULONGEST) size; |
705 | return TARGET_XFER_OK; | |
e2544d02 | 706 | } |
2ed4b548 | 707 | return TARGET_XFER_E_IO; |
e2544d02 | 708 | |
403e1656 MK |
709 | case TARGET_OBJECT_WCOOKIE: |
710 | if (readbuf) | |
711 | { | |
712 | /* When the StackGhost cookie is stored in core file, BFD | |
aff410f1 MS |
713 | represents this with a fake section called |
714 | ".wcookie". */ | |
403e1656 MK |
715 | |
716 | struct bfd_section *section; | |
717 | bfd_size_type size; | |
403e1656 MK |
718 | |
719 | section = bfd_get_section_by_name (core_bfd, ".wcookie"); | |
720 | if (section == NULL) | |
2ed4b548 | 721 | return TARGET_XFER_E_IO; |
403e1656 MK |
722 | |
723 | size = bfd_section_size (core_bfd, section); | |
724 | if (offset >= size) | |
96c4f946 | 725 | return TARGET_XFER_EOF; |
403e1656 MK |
726 | size -= offset; |
727 | if (size > len) | |
728 | size = len; | |
9b409511 YQ |
729 | |
730 | if (size == 0) | |
731 | return TARGET_XFER_EOF; | |
732 | if (!bfd_get_section_contents (core_bfd, section, readbuf, | |
733 | (file_ptr) offset, size)) | |
403e1656 | 734 | { |
8a3fe4f8 | 735 | warning (_("Couldn't read StackGhost cookie in core file.")); |
2ed4b548 | 736 | return TARGET_XFER_E_IO; |
403e1656 MK |
737 | } |
738 | ||
9b409511 YQ |
739 | *xfered_len = (ULONGEST) size; |
740 | return TARGET_XFER_OK; | |
741 | ||
403e1656 | 742 | } |
2ed4b548 | 743 | return TARGET_XFER_E_IO; |
403e1656 | 744 | |
de584861 PA |
745 | case TARGET_OBJECT_LIBRARIES: |
746 | if (core_gdbarch | |
747 | && gdbarch_core_xfer_shared_libraries_p (core_gdbarch)) | |
748 | { | |
749 | if (writebuf) | |
2ed4b548 | 750 | return TARGET_XFER_E_IO; |
9b409511 YQ |
751 | else |
752 | { | |
753 | *xfered_len = gdbarch_core_xfer_shared_libraries (core_gdbarch, | |
754 | readbuf, | |
755 | offset, len); | |
756 | ||
757 | if (*xfered_len == 0) | |
758 | return TARGET_XFER_EOF; | |
759 | else | |
760 | return TARGET_XFER_OK; | |
761 | } | |
de584861 PA |
762 | } |
763 | /* FALL THROUGH */ | |
764 | ||
356a5233 JB |
765 | case TARGET_OBJECT_LIBRARIES_AIX: |
766 | if (core_gdbarch | |
767 | && gdbarch_core_xfer_shared_libraries_aix_p (core_gdbarch)) | |
768 | { | |
769 | if (writebuf) | |
2ed4b548 | 770 | return TARGET_XFER_E_IO; |
9b409511 YQ |
771 | else |
772 | { | |
773 | *xfered_len | |
774 | = gdbarch_core_xfer_shared_libraries_aix (core_gdbarch, | |
775 | readbuf, offset, | |
776 | len); | |
777 | ||
778 | if (*xfered_len == 0) | |
779 | return TARGET_XFER_EOF; | |
780 | else | |
781 | return TARGET_XFER_OK; | |
782 | } | |
356a5233 JB |
783 | } |
784 | /* FALL THROUGH */ | |
785 | ||
efcbbd14 UW |
786 | case TARGET_OBJECT_SPU: |
787 | if (readbuf && annex) | |
788 | { | |
789 | /* When the SPU contexts are stored in a core file, BFD | |
aff410f1 MS |
790 | represents this with a fake section called |
791 | "SPU/<annex>". */ | |
efcbbd14 UW |
792 | |
793 | struct bfd_section *section; | |
794 | bfd_size_type size; | |
efcbbd14 | 795 | char sectionstr[100]; |
c5504eaf | 796 | |
efcbbd14 UW |
797 | xsnprintf (sectionstr, sizeof sectionstr, "SPU/%s", annex); |
798 | ||
799 | section = bfd_get_section_by_name (core_bfd, sectionstr); | |
800 | if (section == NULL) | |
2ed4b548 | 801 | return TARGET_XFER_E_IO; |
efcbbd14 UW |
802 | |
803 | size = bfd_section_size (core_bfd, section); | |
804 | if (offset >= size) | |
9b409511 | 805 | return TARGET_XFER_EOF; |
efcbbd14 UW |
806 | size -= offset; |
807 | if (size > len) | |
808 | size = len; | |
9b409511 YQ |
809 | |
810 | if (size == 0) | |
811 | return TARGET_XFER_EOF; | |
812 | if (!bfd_get_section_contents (core_bfd, section, readbuf, | |
813 | (file_ptr) offset, size)) | |
efcbbd14 UW |
814 | { |
815 | warning (_("Couldn't read SPU section in core file.")); | |
2ed4b548 | 816 | return TARGET_XFER_E_IO; |
efcbbd14 UW |
817 | } |
818 | ||
9b409511 YQ |
819 | *xfered_len = (ULONGEST) size; |
820 | return TARGET_XFER_OK; | |
efcbbd14 UW |
821 | } |
822 | else if (readbuf) | |
823 | { | |
824 | /* NULL annex requests list of all present spuids. */ | |
825 | struct spuid_list list; | |
c5504eaf | 826 | |
efcbbd14 UW |
827 | list.buf = readbuf; |
828 | list.offset = offset; | |
829 | list.len = len; | |
830 | list.pos = 0; | |
831 | list.written = 0; | |
832 | bfd_map_over_sections (core_bfd, add_to_spuid_list, &list); | |
9b409511 YQ |
833 | |
834 | if (list.written == 0) | |
835 | return TARGET_XFER_EOF; | |
836 | else | |
837 | { | |
838 | *xfered_len = (ULONGEST) list.written; | |
839 | return TARGET_XFER_OK; | |
840 | } | |
efcbbd14 | 841 | } |
2ed4b548 | 842 | return TARGET_XFER_E_IO; |
efcbbd14 | 843 | |
9015683b TT |
844 | case TARGET_OBJECT_SIGNAL_INFO: |
845 | if (readbuf) | |
9b409511 | 846 | { |
382b69bb JB |
847 | if (core_gdbarch |
848 | && gdbarch_core_xfer_siginfo_p (core_gdbarch)) | |
9b409511 | 849 | { |
382b69bb JB |
850 | LONGEST l = gdbarch_core_xfer_siginfo (core_gdbarch, readbuf, |
851 | offset, len); | |
852 | ||
853 | if (l >= 0) | |
854 | { | |
855 | *xfered_len = l; | |
856 | if (l == 0) | |
857 | return TARGET_XFER_EOF; | |
858 | else | |
859 | return TARGET_XFER_OK; | |
860 | } | |
9b409511 YQ |
861 | } |
862 | } | |
2ed4b548 | 863 | return TARGET_XFER_E_IO; |
9015683b | 864 | |
e2544d02 | 865 | default: |
e75fdfca TT |
866 | return ops->beneath->to_xfer_partial (ops->beneath, object, |
867 | annex, readbuf, | |
868 | writebuf, offset, len, | |
869 | xfered_len); | |
e2544d02 RM |
870 | } |
871 | } | |
872 | ||
c906108c SS |
873 | \f |
874 | /* If mourn is being called in all the right places, this could be say | |
aff410f1 MS |
875 | `gdb internal error' (since generic_mourn calls |
876 | breakpoint_init_inferior). */ | |
c906108c SS |
877 | |
878 | static int | |
3db08215 MM |
879 | ignore (struct target_ops *ops, struct gdbarch *gdbarch, |
880 | struct bp_target_info *bp_tgt) | |
c906108c SS |
881 | { |
882 | return 0; | |
883 | } | |
884 | ||
73971819 PA |
885 | /* Implement the to_remove_breakpoint method. */ |
886 | ||
887 | static int | |
888 | core_remove_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, | |
889 | struct bp_target_info *bp_tgt, | |
890 | enum remove_bp_reason reason) | |
891 | { | |
892 | return 0; | |
893 | } | |
894 | ||
c906108c SS |
895 | |
896 | /* Okay, let's be honest: threads gleaned from a core file aren't | |
897 | exactly lively, are they? On the other hand, if we don't claim | |
898 | that each & every one is alive, then we don't get any of them | |
899 | to appear in an "info thread" command, which is quite a useful | |
900 | behaviour. | |
c5aa993b | 901 | */ |
c906108c | 902 | static int |
28439f5e | 903 | core_thread_alive (struct target_ops *ops, ptid_t ptid) |
c906108c SS |
904 | { |
905 | return 1; | |
906 | } | |
907 | ||
4eb0ad19 DJ |
908 | /* Ask the current architecture what it knows about this core file. |
909 | That will be used, in turn, to pick a better architecture. This | |
910 | wrapper could be avoided if targets got a chance to specialize | |
911 | core_ops. */ | |
912 | ||
913 | static const struct target_desc * | |
914 | core_read_description (struct target_ops *target) | |
915 | { | |
a78c2d62 | 916 | if (core_gdbarch && gdbarch_core_read_description_p (core_gdbarch)) |
2117c711 TT |
917 | { |
918 | const struct target_desc *result; | |
919 | ||
920 | result = gdbarch_core_read_description (core_gdbarch, | |
921 | target, core_bfd); | |
922 | if (result != NULL) | |
923 | return result; | |
924 | } | |
4eb0ad19 | 925 | |
2117c711 | 926 | return target->beneath->to_read_description (target->beneath); |
4eb0ad19 DJ |
927 | } |
928 | ||
7a114964 | 929 | static const char * |
117de6a9 | 930 | core_pid_to_str (struct target_ops *ops, ptid_t ptid) |
0de3b513 PA |
931 | { |
932 | static char buf[64]; | |
88f38a04 | 933 | struct inferior *inf; |
a5ee0f0c | 934 | int pid; |
0de3b513 | 935 | |
a5ee0f0c PA |
936 | /* The preferred way is to have a gdbarch/OS specific |
937 | implementation. */ | |
28439f5e PA |
938 | if (core_gdbarch |
939 | && gdbarch_core_pid_to_str_p (core_gdbarch)) | |
a5ee0f0c | 940 | return gdbarch_core_pid_to_str (core_gdbarch, ptid); |
c5504eaf | 941 | |
a5ee0f0c PA |
942 | /* Otherwise, if we don't have one, we'll just fallback to |
943 | "process", with normal_pid_to_str. */ | |
28439f5e | 944 | |
a5ee0f0c PA |
945 | /* Try the LWPID field first. */ |
946 | pid = ptid_get_lwp (ptid); | |
947 | if (pid != 0) | |
948 | return normal_pid_to_str (pid_to_ptid (pid)); | |
949 | ||
950 | /* Otherwise, this isn't a "threaded" core -- use the PID field, but | |
951 | only if it isn't a fake PID. */ | |
c9657e70 | 952 | inf = find_inferior_ptid (ptid); |
88f38a04 | 953 | if (inf != NULL && !inf->fake_pid_p) |
a5ee0f0c | 954 | return normal_pid_to_str (ptid); |
0de3b513 | 955 | |
a5ee0f0c PA |
956 | /* No luck. We simply don't have a valid PID to print. */ |
957 | xsnprintf (buf, sizeof buf, "<main task>"); | |
0de3b513 PA |
958 | return buf; |
959 | } | |
960 | ||
4dfc5dbc JB |
961 | static const char * |
962 | core_thread_name (struct target_ops *self, struct thread_info *thr) | |
963 | { | |
964 | if (core_gdbarch | |
965 | && gdbarch_core_thread_name_p (core_gdbarch)) | |
966 | return gdbarch_core_thread_name (core_gdbarch, thr); | |
967 | return NULL; | |
968 | } | |
969 | ||
c35b1492 PA |
970 | static int |
971 | core_has_memory (struct target_ops *ops) | |
972 | { | |
973 | return (core_bfd != NULL); | |
974 | } | |
975 | ||
976 | static int | |
977 | core_has_stack (struct target_ops *ops) | |
978 | { | |
979 | return (core_bfd != NULL); | |
980 | } | |
981 | ||
982 | static int | |
983 | core_has_registers (struct target_ops *ops) | |
984 | { | |
985 | return (core_bfd != NULL); | |
986 | } | |
987 | ||
451b7c33 TT |
988 | /* Implement the to_info_proc method. */ |
989 | ||
990 | static void | |
7bc112c1 TT |
991 | core_info_proc (struct target_ops *ops, const char *args, |
992 | enum info_proc_what request) | |
451b7c33 TT |
993 | { |
994 | struct gdbarch *gdbarch = get_current_arch (); | |
995 | ||
996 | /* Since this is the core file target, call the 'core_info_proc' | |
997 | method on gdbarch, not 'info_proc'. */ | |
998 | if (gdbarch_core_info_proc_p (gdbarch)) | |
999 | gdbarch_core_info_proc (gdbarch, args, request); | |
1000 | } | |
1001 | ||
c906108c SS |
1002 | /* Fill in core_ops with its defined operations and properties. */ |
1003 | ||
1004 | static void | |
fba45db2 | 1005 | init_core_ops (void) |
c906108c SS |
1006 | { |
1007 | core_ops.to_shortname = "core"; | |
1008 | core_ops.to_longname = "Local core dump file"; | |
1009 | core_ops.to_doc = | |
1010 | "Use a core file as a target. Specify the filename of the core file."; | |
1011 | core_ops.to_open = core_open; | |
1012 | core_ops.to_close = core_close; | |
c906108c | 1013 | core_ops.to_detach = core_detach; |
c906108c | 1014 | core_ops.to_fetch_registers = get_core_registers; |
e2544d02 | 1015 | core_ops.to_xfer_partial = core_xfer_partial; |
c906108c SS |
1016 | core_ops.to_files_info = core_files_info; |
1017 | core_ops.to_insert_breakpoint = ignore; | |
73971819 | 1018 | core_ops.to_remove_breakpoint = core_remove_breakpoint; |
28439f5e | 1019 | core_ops.to_thread_alive = core_thread_alive; |
4eb0ad19 | 1020 | core_ops.to_read_description = core_read_description; |
0de3b513 | 1021 | core_ops.to_pid_to_str = core_pid_to_str; |
4dfc5dbc | 1022 | core_ops.to_thread_name = core_thread_name; |
c0edd9ed | 1023 | core_ops.to_stratum = process_stratum; |
c35b1492 PA |
1024 | core_ops.to_has_memory = core_has_memory; |
1025 | core_ops.to_has_stack = core_has_stack; | |
1026 | core_ops.to_has_registers = core_has_registers; | |
451b7c33 | 1027 | core_ops.to_info_proc = core_info_proc; |
c5aa993b | 1028 | core_ops.to_magic = OPS_MAGIC; |
c0edd9ed JK |
1029 | |
1030 | if (core_target) | |
1031 | internal_error (__FILE__, __LINE__, | |
1032 | _("init_core_ops: core target already exists (\"%s\")."), | |
1033 | core_target->to_longname); | |
1034 | core_target = &core_ops; | |
c906108c SS |
1035 | } |
1036 | ||
c906108c | 1037 | void |
fba45db2 | 1038 | _initialize_corelow (void) |
c906108c SS |
1039 | { |
1040 | init_core_ops (); | |
1041 | ||
9852c492 | 1042 | add_target_with_completer (&core_ops, filename_completer); |
c906108c | 1043 | } |