Commit | Line | Data |
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c906108c SS |
1 | /* Core dump and executable file functions below target vector, for GDB. |
2 | Copyright 1986, 87, 89, 91, 92, 93, 94, 95, 96, 97, 1998 | |
3 | Free Software Foundation, Inc. | |
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 | |
9 | the Free Software Foundation; either version 2 of the License, or | |
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 JM |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, | |
20 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
21 | |
22 | #include "defs.h" | |
23 | #include "gdb_string.h" | |
24 | #include <errno.h> | |
25 | #include <signal.h> | |
26 | #include <fcntl.h> | |
c5aa993b | 27 | #include "frame.h" /* required by inferior.h */ |
c906108c SS |
28 | #include "inferior.h" |
29 | #include "symtab.h" | |
30 | #include "command.h" | |
31 | #include "bfd.h" | |
32 | #include "target.h" | |
33 | #include "gdbcore.h" | |
34 | #include "gdbthread.h" | |
35 | ||
36 | /* List of all available core_fns. On gdb startup, each core file register | |
37 | reader calls add_core_fns() to register information on each core format it | |
38 | is prepared to read. */ | |
39 | ||
40 | static struct core_fns *core_file_fns = NULL; | |
41 | ||
2acceee2 JM |
42 | /* The core_fns for a core file handler that is prepared to read the core |
43 | file currently open on core_bfd. */ | |
44 | ||
45 | static struct core_fns *core_vec = NULL; | |
46 | ||
a14ed312 | 47 | static void core_files_info (struct target_ops *); |
c906108c SS |
48 | |
49 | #ifdef SOLIB_ADD | |
a14ed312 | 50 | static int solib_add_stub (PTR); |
c906108c SS |
51 | #endif |
52 | ||
a14ed312 | 53 | static struct core_fns *sniff_core_bfd (bfd *); |
2acceee2 | 54 | |
a14ed312 | 55 | static boolean gdb_check_format (bfd *); |
2acceee2 | 56 | |
a14ed312 | 57 | static void core_open (char *, int); |
c906108c | 58 | |
a14ed312 | 59 | static void core_detach (char *, int); |
c906108c | 60 | |
a14ed312 | 61 | static void core_close (int); |
c906108c | 62 | |
74b7792f AC |
63 | static void core_close_cleanup (void *ignore); |
64 | ||
a14ed312 | 65 | static void get_core_registers (int); |
c906108c | 66 | |
a14ed312 | 67 | static void add_to_thread_list (bfd *, asection *, PTR); |
c906108c | 68 | |
a14ed312 | 69 | static int ignore (CORE_ADDR, char *); |
c906108c | 70 | |
a14ed312 | 71 | static char *core_file_to_sym_file (char *); |
c906108c | 72 | |
a14ed312 | 73 | static int core_file_thread_alive (int tid); |
c906108c | 74 | |
a14ed312 | 75 | static void init_core_ops (void); |
c906108c | 76 | |
a14ed312 | 77 | void _initialize_corelow (void); |
c906108c SS |
78 | |
79 | struct target_ops core_ops; | |
80 | ||
81 | /* Link a new core_fns into the global core_file_fns list. Called on gdb | |
82 | startup by the _initialize routine in each core file register reader, to | |
83 | register information about each format the the reader is prepared to | |
84 | handle. */ | |
85 | ||
86 | void | |
87 | add_core_fns (cf) | |
88 | struct core_fns *cf; | |
89 | { | |
c5aa993b | 90 | cf->next = core_file_fns; |
c906108c SS |
91 | core_file_fns = cf; |
92 | } | |
93 | ||
2acceee2 JM |
94 | /* The default function that core file handlers can use to examine a |
95 | core file BFD and decide whether or not to accept the job of | |
96 | reading the core file. */ | |
97 | ||
98 | int | |
99 | default_core_sniffer (our_fns, abfd) | |
100 | struct core_fns *our_fns; | |
101 | bfd *abfd; | |
102 | { | |
103 | int result; | |
104 | ||
105 | result = (bfd_get_flavour (abfd) == our_fns -> core_flavour); | |
106 | return (result); | |
107 | } | |
108 | ||
109 | /* Walk through the list of core functions to find a set that can | |
110 | handle the core file open on ABFD. Default to the first one in the | |
111 | list of nothing matches. Returns pointer to set that is | |
112 | selected. */ | |
113 | ||
114 | static struct core_fns * | |
115 | sniff_core_bfd (abfd) | |
116 | bfd *abfd; | |
117 | { | |
118 | struct core_fns *cf; | |
119 | struct core_fns *yummy = NULL; | |
120 | int matches = 0;; | |
121 | ||
122 | for (cf = core_file_fns; cf != NULL; cf = cf->next) | |
123 | { | |
124 | if (cf->core_sniffer (cf, abfd)) | |
125 | { | |
126 | yummy = cf; | |
127 | matches++; | |
128 | } | |
129 | } | |
130 | if (matches > 1) | |
131 | { | |
132 | warning ("\"%s\": ambiguous core format, %d handlers match", | |
133 | bfd_get_filename (abfd), matches); | |
134 | } | |
135 | else if (matches == 0) | |
136 | { | |
137 | warning ("\"%s\": no core file handler recognizes format, using default", | |
138 | bfd_get_filename (abfd)); | |
139 | } | |
140 | if (yummy == NULL) | |
141 | { | |
142 | yummy = core_file_fns; | |
143 | } | |
144 | return (yummy); | |
145 | } | |
146 | ||
147 | /* The default is to reject every core file format we see. Either | |
148 | BFD has to recognize it, or we have to provide a function in the | |
149 | core file handler that recognizes it. */ | |
150 | ||
151 | int | |
152 | default_check_format (abfd) | |
153 | bfd *abfd; | |
154 | { | |
155 | return (0); | |
156 | } | |
157 | ||
158 | /* Attempt to recognize core file formats that BFD rejects. */ | |
159 | ||
160 | static boolean | |
161 | gdb_check_format (abfd) | |
162 | bfd *abfd; | |
163 | { | |
164 | struct core_fns *cf; | |
165 | ||
166 | for (cf = core_file_fns; cf != NULL; cf = cf->next) | |
167 | { | |
168 | if (cf->check_format (abfd)) | |
169 | { | |
170 | return (true); | |
171 | } | |
172 | } | |
173 | return (false); | |
174 | } | |
c906108c SS |
175 | |
176 | /* Discard all vestiges of any previous core file and mark data and stack | |
177 | spaces as empty. */ | |
178 | ||
179 | /* ARGSUSED */ | |
180 | static void | |
181 | core_close (quitting) | |
182 | int quitting; | |
183 | { | |
184 | char *name; | |
185 | ||
186 | if (core_bfd) | |
187 | { | |
188 | inferior_pid = 0; /* Avoid confusion from thread stuff */ | |
189 | ||
7a292a7a | 190 | /* Clear out solib state while the bfd is still open. See |
c5aa993b | 191 | comments in clear_solib in solib.c. */ |
7a292a7a SS |
192 | #ifdef CLEAR_SOLIB |
193 | CLEAR_SOLIB (); | |
194 | #endif | |
195 | ||
c906108c SS |
196 | name = bfd_get_filename (core_bfd); |
197 | if (!bfd_close (core_bfd)) | |
198 | warning ("cannot close \"%s\": %s", | |
199 | name, bfd_errmsg (bfd_get_error ())); | |
200 | free (name); | |
201 | core_bfd = NULL; | |
c906108c SS |
202 | if (core_ops.to_sections) |
203 | { | |
c5aa993b | 204 | free ((PTR) core_ops.to_sections); |
c906108c SS |
205 | core_ops.to_sections = NULL; |
206 | core_ops.to_sections_end = NULL; | |
207 | } | |
208 | } | |
2acceee2 | 209 | core_vec = NULL; |
c906108c SS |
210 | } |
211 | ||
74b7792f AC |
212 | static void |
213 | core_close_cleanup (void *ignore) | |
214 | { | |
215 | core_close (0/*ignored*/); | |
216 | } | |
217 | ||
c906108c SS |
218 | #ifdef SOLIB_ADD |
219 | /* Stub function for catch_errors around shared library hacking. FROM_TTYP | |
220 | is really an int * which points to from_tty. */ | |
221 | ||
c5aa993b | 222 | static int |
c906108c SS |
223 | solib_add_stub (from_ttyp) |
224 | PTR from_ttyp; | |
225 | { | |
c5aa993b | 226 | SOLIB_ADD (NULL, *(int *) from_ttyp, ¤t_target); |
c906108c SS |
227 | re_enable_breakpoints_in_shlibs (); |
228 | return 0; | |
229 | } | |
230 | #endif /* SOLIB_ADD */ | |
231 | ||
232 | /* Look for sections whose names start with `.reg/' so that we can extract the | |
233 | list of threads in a core file. */ | |
234 | ||
235 | static void | |
236 | add_to_thread_list (abfd, asect, reg_sect_arg) | |
237 | bfd *abfd; | |
238 | asection *asect; | |
239 | PTR reg_sect_arg; | |
240 | { | |
241 | int thread_id; | |
242 | asection *reg_sect = (asection *) reg_sect_arg; | |
243 | ||
244 | if (strncmp (bfd_section_name (abfd, asect), ".reg/", 5) != 0) | |
245 | return; | |
246 | ||
247 | thread_id = atoi (bfd_section_name (abfd, asect) + 5); | |
248 | ||
249 | add_thread (thread_id); | |
250 | ||
251 | /* Warning, Will Robinson, looking at BFD private data! */ | |
252 | ||
253 | if (reg_sect != NULL | |
c5aa993b | 254 | && asect->filepos == reg_sect->filepos) /* Did we find .reg? */ |
c906108c SS |
255 | inferior_pid = thread_id; /* Yes, make it current */ |
256 | } | |
257 | ||
258 | /* This routine opens and sets up the core file bfd. */ | |
259 | ||
260 | static void | |
261 | core_open (filename, from_tty) | |
262 | char *filename; | |
263 | int from_tty; | |
264 | { | |
265 | const char *p; | |
266 | int siggy; | |
267 | struct cleanup *old_chain; | |
268 | char *temp; | |
269 | bfd *temp_bfd; | |
270 | int ontop; | |
271 | int scratch_chan; | |
272 | ||
273 | target_preopen (from_tty); | |
274 | if (!filename) | |
275 | { | |
c5aa993b JM |
276 | error (core_bfd ? |
277 | "No core file specified. (Use `detach' to stop debugging a core file.)" | |
278 | : "No core file specified."); | |
c906108c SS |
279 | } |
280 | ||
281 | filename = tilde_expand (filename); | |
282 | if (filename[0] != '/') | |
283 | { | |
284 | temp = concat (current_directory, "/", filename, NULL); | |
285 | free (filename); | |
286 | filename = temp; | |
287 | } | |
288 | ||
289 | old_chain = make_cleanup (free, filename); | |
290 | ||
291 | scratch_chan = open (filename, write_files ? O_RDWR : O_RDONLY, 0); | |
292 | if (scratch_chan < 0) | |
293 | perror_with_name (filename); | |
294 | ||
295 | temp_bfd = bfd_fdopenr (filename, gnutarget, scratch_chan); | |
296 | if (temp_bfd == NULL) | |
297 | perror_with_name (filename); | |
298 | ||
2acceee2 JM |
299 | if (!bfd_check_format (temp_bfd, bfd_core) && |
300 | !gdb_check_format (temp_bfd)) | |
c906108c SS |
301 | { |
302 | /* Do it after the err msg */ | |
303 | /* FIXME: should be checking for errors from bfd_close (for one thing, | |
c5aa993b JM |
304 | on error it does not free all the storage associated with the |
305 | bfd). */ | |
5c65bbb6 | 306 | make_cleanup_bfd_close (temp_bfd); |
c906108c SS |
307 | error ("\"%s\" is not a core dump: %s", |
308 | filename, bfd_errmsg (bfd_get_error ())); | |
309 | } | |
310 | ||
311 | /* Looks semi-reasonable. Toss the old core file and work on the new. */ | |
312 | ||
c5aa993b | 313 | discard_cleanups (old_chain); /* Don't free filename any more */ |
c906108c SS |
314 | unpush_target (&core_ops); |
315 | core_bfd = temp_bfd; | |
74b7792f | 316 | old_chain = make_cleanup (core_close_cleanup, 0 /*ignore*/); |
c906108c | 317 | |
2acceee2 JM |
318 | /* Find a suitable core file handler to munch on core_bfd */ |
319 | core_vec = sniff_core_bfd (core_bfd); | |
320 | ||
c906108c SS |
321 | validate_files (); |
322 | ||
323 | /* Find the data section */ | |
324 | if (build_section_table (core_bfd, &core_ops.to_sections, | |
325 | &core_ops.to_sections_end)) | |
326 | error ("\"%s\": Can't find sections: %s", | |
327 | bfd_get_filename (core_bfd), bfd_errmsg (bfd_get_error ())); | |
328 | ||
cbda0a99 MS |
329 | set_gdbarch_from_file (core_bfd); |
330 | ||
c906108c SS |
331 | ontop = !push_target (&core_ops); |
332 | discard_cleanups (old_chain); | |
333 | ||
334 | p = bfd_core_file_failing_command (core_bfd); | |
335 | if (p) | |
336 | printf_filtered ("Core was generated by `%s'.\n", p); | |
337 | ||
338 | siggy = bfd_core_file_failing_signal (core_bfd); | |
339 | if (siggy > 0) | |
340 | printf_filtered ("Program terminated with signal %d, %s.\n", siggy, | |
341 | safe_strsignal (siggy)); | |
342 | ||
343 | /* Build up thread list from BFD sections. */ | |
344 | ||
345 | init_thread_list (); | |
346 | bfd_map_over_sections (core_bfd, add_to_thread_list, | |
347 | bfd_get_section_by_name (core_bfd, ".reg")); | |
348 | ||
349 | if (ontop) | |
350 | { | |
351 | /* Fetch all registers from core file. */ | |
352 | target_fetch_registers (-1); | |
353 | ||
354 | /* Add symbols and section mappings for any shared libraries. */ | |
355 | #ifdef SOLIB_ADD | |
c5aa993b | 356 | catch_errors (solib_add_stub, &from_tty, (char *) 0, |
c906108c SS |
357 | RETURN_MASK_ALL); |
358 | #endif | |
359 | ||
360 | /* Now, set up the frame cache, and print the top of stack. */ | |
361 | flush_cached_frames (); | |
362 | select_frame (get_current_frame (), 0); | |
363 | print_stack_frame (selected_frame, selected_frame_level, 1); | |
364 | } | |
365 | else | |
366 | { | |
367 | warning ( | |
c5aa993b | 368 | "you won't be able to access this core file until you terminate\n\ |
c906108c SS |
369 | your %s; do ``info files''", target_longname); |
370 | } | |
371 | } | |
372 | ||
373 | static void | |
374 | core_detach (args, from_tty) | |
375 | char *args; | |
376 | int from_tty; | |
377 | { | |
378 | if (args) | |
379 | error ("Too many arguments"); | |
380 | unpush_target (&core_ops); | |
381 | reinit_frame_cache (); | |
382 | if (from_tty) | |
383 | printf_filtered ("No core file now.\n"); | |
384 | } | |
385 | ||
de57eccd JM |
386 | |
387 | /* Try to retrieve registers from a section in core_bfd, and supply | |
388 | them to core_vec->core_read_registers, as the register set numbered | |
389 | WHICH. | |
390 | ||
391 | If inferior_pid is zero, do the single-threaded thing: look for a | |
392 | section named NAME. If inferior_pid is non-zero, do the | |
393 | multi-threaded thing: look for a section named "NAME/PID", where | |
394 | PID is the shortest ASCII decimal representation of inferior_pid. | |
395 | ||
396 | HUMAN_NAME is a human-readable name for the kind of registers the | |
397 | NAME section contains, for use in error messages. | |
398 | ||
399 | If REQUIRED is non-zero, print an error if the core file doesn't | |
400 | have a section by the appropriate name. Otherwise, just do nothing. */ | |
401 | ||
402 | static void | |
403 | get_core_register_section (char *name, | |
404 | int which, | |
405 | char *human_name, | |
406 | int required) | |
407 | { | |
408 | char section_name[100]; | |
409 | sec_ptr section; | |
410 | bfd_size_type size; | |
411 | char *contents; | |
412 | ||
413 | if (inferior_pid) | |
414 | sprintf (section_name, "%s/%d", name, inferior_pid); | |
415 | else | |
416 | strcpy (section_name, name); | |
417 | ||
418 | section = bfd_get_section_by_name (core_bfd, section_name); | |
419 | if (! section) | |
420 | { | |
421 | if (required) | |
422 | warning ("Couldn't find %s registers in core file.\n", human_name); | |
423 | return; | |
424 | } | |
425 | ||
426 | size = bfd_section_size (core_bfd, section); | |
427 | contents = alloca (size); | |
428 | if (! bfd_get_section_contents (core_bfd, section, contents, | |
429 | (file_ptr) 0, size)) | |
430 | { | |
431 | warning ("Couldn't read %s registers from `%s' section in core file.\n", | |
432 | human_name, name); | |
433 | return; | |
434 | } | |
435 | ||
436 | core_vec->core_read_registers (contents, size, which, | |
437 | ((CORE_ADDR) | |
438 | bfd_section_vma (core_bfd, section))); | |
439 | } | |
440 | ||
441 | ||
c906108c SS |
442 | /* Get the registers out of a core file. This is the machine- |
443 | independent part. Fetch_core_registers is the machine-dependent | |
444 | part, typically implemented in the xm-file for each architecture. */ | |
445 | ||
446 | /* We just get all the registers, so we don't use regno. */ | |
447 | ||
448 | /* ARGSUSED */ | |
449 | static void | |
450 | get_core_registers (regno) | |
451 | int regno; | |
452 | { | |
de57eccd | 453 | int status; |
c906108c | 454 | |
de57eccd JM |
455 | if (core_vec == NULL |
456 | || core_vec->core_read_registers == NULL) | |
c906108c SS |
457 | { |
458 | fprintf_filtered (gdb_stderr, | |
c5aa993b | 459 | "Can't fetch registers from this type of core file\n"); |
c906108c SS |
460 | return; |
461 | } | |
462 | ||
de57eccd JM |
463 | get_core_register_section (".reg", 0, "general-purpose", 1); |
464 | get_core_register_section (".reg2", 2, "floating-point", 0); | |
465 | get_core_register_section (".reg-xfp", 3, "extended floating-point", 0); | |
c906108c | 466 | |
c906108c SS |
467 | registers_fetched (); |
468 | } | |
469 | ||
470 | static char * | |
471 | core_file_to_sym_file (core) | |
c5aa993b | 472 | char *core; |
c906108c | 473 | { |
c5aa993b JM |
474 | CONST char *failing_command; |
475 | char *p; | |
476 | char *temp; | |
477 | bfd *temp_bfd; | |
478 | int scratch_chan; | |
c906108c | 479 | |
c5aa993b | 480 | if (!core) |
c906108c SS |
481 | error ("No core file specified."); |
482 | ||
483 | core = tilde_expand (core); | |
484 | if (core[0] != '/') | |
485 | { | |
486 | temp = concat (current_directory, "/", core, NULL); | |
487 | core = temp; | |
488 | } | |
489 | ||
490 | scratch_chan = open (core, write_files ? O_RDWR : O_RDONLY, 0); | |
491 | if (scratch_chan < 0) | |
492 | perror_with_name (core); | |
493 | ||
494 | temp_bfd = bfd_fdopenr (core, gnutarget, scratch_chan); | |
495 | if (temp_bfd == NULL) | |
496 | perror_with_name (core); | |
497 | ||
498 | if (!bfd_check_format (temp_bfd, bfd_core)) | |
499 | { | |
500 | /* Do it after the err msg */ | |
501 | /* FIXME: should be checking for errors from bfd_close (for one thing, | |
c5aa993b JM |
502 | on error it does not free all the storage associated with the |
503 | bfd). */ | |
5c65bbb6 | 504 | make_cleanup_bfd_close (temp_bfd); |
c906108c SS |
505 | error ("\"%s\" is not a core dump: %s", |
506 | core, bfd_errmsg (bfd_get_error ())); | |
507 | } | |
508 | ||
509 | /* Find the data section */ | |
510 | if (build_section_table (temp_bfd, &core_ops.to_sections, | |
511 | &core_ops.to_sections_end)) | |
512 | error ("\"%s\": Can't find sections: %s", | |
513 | bfd_get_filename (temp_bfd), bfd_errmsg (bfd_get_error ())); | |
514 | ||
515 | failing_command = bfd_core_file_failing_command (temp_bfd); | |
516 | ||
517 | bfd_close (temp_bfd); | |
518 | ||
519 | /* If we found a filename, remember that it is probably saved | |
520 | relative to the executable that created it. If working directory | |
521 | isn't there now, we may not be able to find the executable. Rather | |
522 | than trying to be sauve about finding it, just check if the file | |
523 | exists where we are now. If not, then punt and tell our client | |
524 | we couldn't find the sym file. | |
c5aa993b | 525 | */ |
c906108c SS |
526 | p = (char *) failing_command; |
527 | if ((p != NULL) && (access (p, F_OK) != 0)) | |
528 | p = NULL; | |
529 | ||
530 | return p; | |
531 | } | |
532 | ||
533 | static void | |
534 | core_files_info (t) | |
c5aa993b | 535 | struct target_ops *t; |
c906108c SS |
536 | { |
537 | print_section_info (t, core_bfd); | |
538 | } | |
539 | \f | |
540 | /* If mourn is being called in all the right places, this could be say | |
541 | `gdb internal error' (since generic_mourn calls breakpoint_init_inferior). */ | |
542 | ||
543 | static int | |
544 | ignore (addr, contents) | |
545 | CORE_ADDR addr; | |
546 | char *contents; | |
547 | { | |
548 | return 0; | |
549 | } | |
550 | ||
551 | ||
552 | /* Okay, let's be honest: threads gleaned from a core file aren't | |
553 | exactly lively, are they? On the other hand, if we don't claim | |
554 | that each & every one is alive, then we don't get any of them | |
555 | to appear in an "info thread" command, which is quite a useful | |
556 | behaviour. | |
c5aa993b | 557 | */ |
c906108c SS |
558 | static int |
559 | core_file_thread_alive (tid) | |
c5aa993b | 560 | int tid; |
c906108c SS |
561 | { |
562 | return 1; | |
563 | } | |
564 | ||
565 | /* Fill in core_ops with its defined operations and properties. */ | |
566 | ||
567 | static void | |
568 | init_core_ops () | |
569 | { | |
570 | core_ops.to_shortname = "core"; | |
571 | core_ops.to_longname = "Local core dump file"; | |
572 | core_ops.to_doc = | |
573 | "Use a core file as a target. Specify the filename of the core file."; | |
574 | core_ops.to_open = core_open; | |
575 | core_ops.to_close = core_close; | |
576 | core_ops.to_attach = find_default_attach; | |
577 | core_ops.to_require_attach = find_default_require_attach; | |
578 | core_ops.to_detach = core_detach; | |
579 | core_ops.to_require_detach = find_default_require_detach; | |
580 | core_ops.to_fetch_registers = get_core_registers; | |
581 | core_ops.to_xfer_memory = xfer_memory; | |
582 | core_ops.to_files_info = core_files_info; | |
583 | core_ops.to_insert_breakpoint = ignore; | |
584 | core_ops.to_remove_breakpoint = ignore; | |
585 | core_ops.to_create_inferior = find_default_create_inferior; | |
586 | core_ops.to_clone_and_follow_inferior = find_default_clone_and_follow_inferior; | |
587 | core_ops.to_thread_alive = core_file_thread_alive; | |
588 | core_ops.to_core_file_to_sym_file = core_file_to_sym_file; | |
589 | core_ops.to_stratum = core_stratum; | |
590 | core_ops.to_has_memory = 1; | |
591 | core_ops.to_has_stack = 1; | |
592 | core_ops.to_has_registers = 1; | |
c5aa993b | 593 | core_ops.to_magic = OPS_MAGIC; |
c906108c SS |
594 | } |
595 | ||
596 | /* non-zero if we should not do the add_target call in | |
597 | _initialize_corelow; not initialized (i.e., bss) so that | |
598 | the target can initialize it (i.e., data) if appropriate. | |
599 | This needs to be set at compile time because we don't know | |
600 | for sure whether the target's initialize routine is called | |
601 | before us or after us. */ | |
602 | int coreops_suppress_target; | |
603 | ||
604 | void | |
605 | _initialize_corelow () | |
606 | { | |
607 | init_core_ops (); | |
608 | ||
609 | if (!coreops_suppress_target) | |
610 | add_target (&core_ops); | |
611 | } |