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bb140953 JL |
1 | /* Handle HP SOM shared libraries for GDB, the GNU Debugger. |
2 | Copyright 1993 Free Software Foundation, Inc. | |
b1c6705a | 3 | |
bb140953 JL |
4 | This file is part of GDB. |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
19 | ||
20 | Written by the Center for Software Science at the Univerity of Utah | |
21 | and by Cygnus Support. */ | |
22 | ||
23 | ||
24 | #include "defs.h" | |
25 | ||
26 | #include "frame.h" | |
27 | #include "bfd.h" | |
28 | #include "som.h" | |
29 | #include "libhppa.h" | |
30 | #include "gdbcore.h" | |
31 | #include "symtab.h" | |
32 | #include "breakpoint.h" | |
33 | #include "symfile.h" | |
34 | #include "objfiles.h" | |
35 | #include "inferior.h" | |
36 | ||
b1c6705a JL |
37 | /* TODO: |
38 | ||
39 | * Relocate data addresses in the shared library. | |
40 | ||
41 | * Most of this code should work for hp300 shared libraries. Does | |
42 | anyone care enough to weed out any SOM-isms. | |
43 | ||
44 | * Do we need/want a command to load a shared library? | |
45 | ||
b1c6705a JL |
46 | * Support for hpux8 dynamic linker. |
47 | ||
48 | * Support for tracking user calls to dld_load, dld_unload. */ | |
49 | ||
50 | /* The basic structure which describes a dynamically loaded object. This | |
51 | data structure is private to the dynamic linker and isn't found in | |
52 | any HPUX include file. */ | |
bb140953 JL |
53 | |
54 | struct som_solib_mapped_entry | |
55 | { | |
56 | /* The name of the library. */ | |
57 | char *name; | |
58 | ||
b1c6705a | 59 | /* Version of this structure (it is expected to change again in hpux10). */ |
bb140953 JL |
60 | unsigned char struct_version; |
61 | ||
62 | /* Binding mode for this library. */ | |
63 | unsigned char bind_mode; | |
64 | ||
65 | /* Version of this library. */ | |
66 | short library_version; | |
67 | ||
68 | /* Start of text address, link-time text location, end of text address. */ | |
69 | CORE_ADDR text_addr; | |
70 | CORE_ADDR text_link_addr; | |
71 | CORE_ADDR text_end; | |
72 | ||
73 | /* Start of data, start of bss and end of data. */ | |
74 | CORE_ADDR data_start; | |
75 | CORE_ADDR bss_start; | |
76 | CORE_ADDR data_end; | |
77 | ||
78 | /* Value of linkage pointer (%r19). */ | |
79 | CORE_ADDR got_value; | |
80 | ||
81 | /* Next entry. */ | |
82 | struct som_solib_mapped_entry *next; | |
83 | ||
84 | /* There are other fields, but I don't have information as to what is | |
85 | contained in them. */ | |
86 | }; | |
87 | ||
b1c6705a JL |
88 | /* A structure to keep track of all the known shared objects. */ |
89 | struct so_list | |
90 | { | |
91 | struct som_solib_mapped_entry som_solib; | |
92 | struct objfile *objfile; | |
93 | bfd *abfd; | |
94 | struct section_table *sections; | |
95 | struct section_table *sections_end; | |
96 | struct so_list *next; | |
97 | }; | |
98 | ||
99 | static struct so_list *so_list_head; | |
100 | ||
101 | static void som_sharedlibrary_info_command PARAMS ((char *, int)); | |
102 | ||
bb140953 JL |
103 | /* Add symbols from shared libraries into the symtab list. */ |
104 | ||
105 | void | |
106 | som_solib_add (arg_string, from_tty, target) | |
107 | char *arg_string; | |
108 | int from_tty; | |
109 | struct target_ops *target; | |
b1c6705a | 110 | { |
bb140953 | 111 | struct minimal_symbol *msymbol; |
b1c6705a | 112 | struct so_list *so_list_tail; |
bb140953 | 113 | CORE_ADDR addr; |
b1c6705a | 114 | asection *shlib_info; |
bb140953 | 115 | int status; |
c2e00af6 | 116 | unsigned int dld_flags; |
bb140953 JL |
117 | char buf[4]; |
118 | ||
c2e00af6 JL |
119 | /* If we're debugging a core file, or have attached to a running |
120 | process, then som_solib_create_inferior_hook will not have been | |
121 | called. | |
122 | ||
b1c6705a JL |
123 | We need to first determine if we're dealing with a dynamically |
124 | linked executable. If not, then return without an error or warning. | |
125 | ||
126 | We also need to examine __dld_flags to determine if the shared library | |
127 | list is valid and to determine if the libraries have been privately | |
c2e00af6 | 128 | mapped. */ |
f0c9e9e5 JL |
129 | if (symfile_objfile == NULL) |
130 | return; | |
131 | ||
b1c6705a JL |
132 | /* First see if the objfile was dynamically linked. */ |
133 | shlib_info = bfd_get_section_by_name (symfile_objfile->obfd, "$SHLIB_INFO$"); | |
134 | if (!shlib_info) | |
135 | return; | |
136 | ||
137 | /* It's got a $SHLIB_INFO$ section, make sure it's not empty. */ | |
138 | if (bfd_section_size (symfile_objfile->obfd, shlib_info) == 0) | |
139 | return; | |
140 | ||
c2e00af6 JL |
141 | msymbol = lookup_minimal_symbol ("__dld_flags", (struct objfile *) NULL); |
142 | if (msymbol == NULL) | |
143 | { | |
144 | error ("Unable to find __dld_flags symbol in object file.\n"); | |
145 | return; | |
146 | } | |
147 | ||
148 | addr = SYMBOL_VALUE_ADDRESS (msymbol); | |
149 | /* Read the current contents. */ | |
150 | status = target_read_memory (addr, buf, 4); | |
151 | if (status != 0) | |
152 | { | |
153 | error ("Unable to read __dld_flags\n"); | |
154 | return; | |
155 | } | |
156 | dld_flags = extract_unsigned_integer (buf, 4); | |
157 | ||
158 | /* __dld_list may not be valid. If it's not valid tell the user. */ | |
159 | if ((dld_flags & 4) == 0) | |
160 | { | |
161 | error ("__dld_list is not valid according to __dld_flags.\n"); | |
162 | return; | |
163 | } | |
164 | ||
165 | /* If the libraries were not mapped private, warn the user. */ | |
166 | if ((dld_flags & 1) == 0) | |
b1c6705a | 167 | warning ("The shared libraries were not privately mapped; setting a\nbreakpoint in a shared library will not work until you rerun the program.\n"); |
c2e00af6 | 168 | |
bb140953 JL |
169 | msymbol = lookup_minimal_symbol ("__dld_list", (struct objfile *) NULL); |
170 | if (!msymbol) | |
171 | { | |
172 | /* Older crt0.o files (hpux8) don't have __dld_list as a symbol, | |
173 | but the data is still available if you know where to look. */ | |
174 | msymbol = lookup_minimal_symbol ("__dld_flags", (struct objfile *)NULL); | |
175 | if (!msymbol) | |
176 | { | |
177 | error ("Unable to find dynamic library list.\n"); | |
178 | return; | |
179 | } | |
180 | addr = SYMBOL_VALUE_ADDRESS (msymbol) - 8; | |
181 | } | |
182 | else | |
183 | addr = SYMBOL_VALUE_ADDRESS (msymbol); | |
184 | ||
185 | status = target_read_memory (addr, buf, 4); | |
186 | if (status != 0) | |
187 | { | |
188 | error ("Unable to find dynamic library list.\n"); | |
189 | return; | |
190 | } | |
191 | ||
192 | addr = extract_unsigned_integer (buf, 4); | |
193 | ||
194 | /* If addr is zero, then we're using an old dynamic loader which | |
195 | doesn't maintain __dld_list. We'll have to use a completely | |
196 | different approach to get shared library information. */ | |
197 | if (addr == 0) | |
198 | goto old_dld; | |
199 | ||
200 | /* Using the information in __dld_list is the preferred method | |
201 | to get at shared library information. It doesn't depend on | |
202 | any functions in /usr/lib/end.o and has a chance of working | |
203 | with hpux10 when it is released. */ | |
204 | status = target_read_memory (addr, buf, 4); | |
205 | if (status != 0) | |
206 | { | |
207 | error ("Unable to find dynamic library list.\n"); | |
208 | return; | |
209 | } | |
210 | ||
211 | /* addr now holds the address of the first entry in the dynamic | |
212 | library list. */ | |
213 | addr = extract_unsigned_integer (buf, 4); | |
214 | ||
215 | /* Now that we have a pointer to the dynamic library list, walk | |
216 | through it and add the symbols for each library. | |
217 | ||
218 | Skip the first entry since it's our executable. */ | |
219 | status = target_read_memory (addr + 36, buf, 4); | |
220 | if (status != 0) | |
b1c6705a JL |
221 | goto err; |
222 | ||
bb140953 JL |
223 | addr = extract_unsigned_integer (buf, 4); |
224 | ||
b1c6705a JL |
225 | so_list_tail = so_list_head; |
226 | /* Find the end of the list of shared objects. */ | |
227 | while (so_list_tail && so_list_tail->next) | |
228 | so_list_tail = so_list_tail->next; | |
229 | ||
bb140953 JL |
230 | while (1) |
231 | { | |
232 | CORE_ADDR name_addr, text_addr; | |
233 | unsigned int name_len; | |
234 | char *name; | |
b1c6705a JL |
235 | struct so_list *new_so; |
236 | struct section_table *p; | |
237 | ||
bb140953 JL |
238 | if (addr == 0) |
239 | break; | |
240 | ||
241 | /* Get a pointer to the name of this library. */ | |
242 | status = target_read_memory (addr, buf, 4); | |
243 | if (status != 0) | |
b1c6705a JL |
244 | goto err; |
245 | ||
bb140953 JL |
246 | name_addr = extract_unsigned_integer (buf, 4); |
247 | name_len = 0; | |
248 | while (1) | |
249 | { | |
250 | target_read_memory (name_addr + name_len, buf, 1); | |
251 | if (status != 0) | |
b1c6705a JL |
252 | goto err; |
253 | ||
bb140953 JL |
254 | name_len++; |
255 | if (*buf == '\0') | |
256 | break; | |
257 | } | |
258 | name = alloca (name_len); | |
259 | status = target_read_memory (name_addr, name, name_len); | |
260 | if (status != 0) | |
b1c6705a JL |
261 | goto err; |
262 | ||
bb140953 JL |
263 | name = obsavestring (name, name_len - 1, |
264 | &symfile_objfile->symbol_obstack); | |
265 | ||
266 | status = target_read_memory (addr + 8, buf, 4); | |
267 | if (status != 0) | |
b1c6705a JL |
268 | goto err; |
269 | ||
270 | text_addr = extract_unsigned_integer (buf, 4); | |
271 | ||
272 | ||
273 | new_so = (struct so_list *) malloc (sizeof (struct so_list)); | |
274 | memset ((char *)new_so, 0, sizeof (struct so_list)); | |
275 | if (so_list_head == NULL) | |
bb140953 | 276 | { |
b1c6705a JL |
277 | so_list_head = new_so; |
278 | so_list_tail = new_so; | |
bb140953 | 279 | } |
b1c6705a JL |
280 | else |
281 | { | |
282 | so_list_tail->next = new_so; | |
283 | so_list_tail = new_so; | |
284 | } | |
285 | ||
286 | /* Fill in all the entries in GDB's shared library list. */ | |
287 | new_so->som_solib.name = name; | |
288 | status = target_read_memory (addr + 4, buf, 4); | |
289 | if (status != 0) | |
290 | goto err; | |
291 | ||
292 | new_so->som_solib.struct_version = extract_unsigned_integer (buf + 3, 1); | |
293 | new_so->som_solib.bind_mode = extract_unsigned_integer (buf + 2, 1); | |
294 | new_so->som_solib.library_version = extract_unsigned_integer (buf, 2); | |
295 | new_so->som_solib.text_addr = text_addr; | |
296 | ||
297 | status = target_read_memory (addr + 12, buf, 4); | |
298 | if (status != 0) | |
299 | goto err; | |
300 | ||
301 | new_so->som_solib.text_link_addr = extract_unsigned_integer (buf, 4); | |
bb140953 | 302 | |
b1c6705a JL |
303 | status = target_read_memory (addr + 16, buf, 4); |
304 | if (status != 0) | |
305 | goto err; | |
306 | ||
307 | new_so->som_solib.text_end = extract_unsigned_integer (buf, 4); | |
308 | ||
309 | status = target_read_memory (addr + 20, buf, 4); | |
310 | if (status != 0) | |
311 | goto err; | |
312 | ||
313 | new_so->som_solib.data_start = extract_unsigned_integer (buf, 4); | |
314 | ||
315 | status = target_read_memory (addr + 24, buf, 4); | |
316 | if (status != 0) | |
317 | goto err; | |
318 | ||
319 | new_so->som_solib.bss_start = extract_unsigned_integer (buf, 4); | |
320 | ||
321 | status = target_read_memory (addr + 28, buf, 4); | |
322 | if (status != 0) | |
323 | goto err; | |
324 | ||
325 | new_so->som_solib.data_end = extract_unsigned_integer (buf, 4); | |
326 | ||
327 | status = target_read_memory (addr + 32, buf, 4); | |
328 | if (status != 0) | |
329 | goto err; | |
330 | ||
331 | new_so->som_solib.got_value = extract_unsigned_integer (buf, 4); | |
bb140953 | 332 | |
bb140953 JL |
333 | status = target_read_memory (addr + 36, buf, 4); |
334 | if (status != 0) | |
b1c6705a JL |
335 | goto err; |
336 | ||
337 | new_so->som_solib.next = (void *)extract_unsigned_integer (buf, 4); | |
338 | addr = (CORE_ADDR)new_so->som_solib.next; | |
339 | ||
340 | new_so->objfile = symbol_file_add (name, from_tty, text_addr, 0, 0, 0); | |
341 | new_so->abfd = bfd_openr (name, gnutarget); | |
342 | new_so->abfd->cacheable = true; | |
343 | ||
344 | if (!bfd_check_format (new_so->abfd, bfd_object)) | |
345 | { | |
346 | error ("\"%s\": not in executable format: %s.", | |
347 | name, bfd_errmsg (bfd_get_error ())); | |
348 | } | |
349 | ||
350 | /* Now we need to build a section table for this library since | |
351 | we might be debugging a core file from a dynamically linked | |
352 | executable in which the libraries were not privately mapped. */ | |
353 | if (build_section_table (new_so->abfd, | |
354 | &new_so->sections, | |
355 | &new_so->sections_end)) | |
bb140953 | 356 | { |
b1c6705a | 357 | error ("Unable to build section table for shared library\n."); |
bb140953 JL |
358 | return; |
359 | } | |
b1c6705a JL |
360 | |
361 | /* Relocate all the sections based on where they got loaded. */ | |
362 | for (p = new_so->sections; p < new_so->sections_end; p++) | |
363 | { | |
364 | if (p->the_bfd_section->flags & SEC_CODE) | |
365 | { | |
366 | p->addr += text_addr - new_so->som_solib.text_link_addr; | |
367 | p->endaddr += text_addr - new_so->som_solib.text_link_addr; | |
368 | } | |
369 | else if (p->the_bfd_section->flags & SEC_DATA) | |
370 | { | |
371 | p->addr += new_so->som_solib.data_start; | |
372 | p->endaddr += new_so->som_solib.data_start; | |
373 | } | |
374 | } | |
375 | ||
376 | /* Now see if we need to map in the text and data for this shared | |
377 | library (for example debugging a core file which does not use | |
378 | private shared libraries.). | |
379 | ||
380 | Carefully peek at the first text address in the library. If the | |
381 | read succeeds, then the libraries were privately mapped and were | |
382 | included in the core dump file. | |
383 | ||
384 | If the peek failed, then the libraries were not privately mapped | |
385 | and are not in the core file, we'll have to read them in ourselves. */ | |
386 | status = target_read_memory (text_addr, buf, 4); | |
387 | if (status != 0) | |
388 | { | |
389 | int old; | |
390 | ||
391 | /* Add sections from the shared library to the core target. */ | |
392 | if (target->to_sections) | |
393 | { | |
394 | old = target->to_sections_end - target->to_sections; | |
395 | target->to_sections = (struct section_table *) | |
396 | xrealloc ((char *)target->to_sections, | |
397 | ((sizeof (struct section_table)) | |
398 | * (old + bfd_count_sections (new_so->abfd)))); | |
399 | } | |
400 | else | |
401 | { | |
402 | old = 0; | |
403 | target->to_sections = (struct section_table *) | |
404 | xmalloc ((sizeof (struct section_table)) | |
405 | * bfd_count_sections (new_so->abfd)); | |
406 | } | |
407 | target->to_sections_end = (target->to_sections | |
408 | + old + bfd_count_sections (new_so->abfd)); | |
409 | memcpy ((char *)(target->to_sections + old), | |
410 | new_so->sections, | |
411 | ((sizeof (struct section_table)) | |
412 | * bfd_count_sections (new_so->abfd))); | |
413 | } | |
bb140953 JL |
414 | } |
415 | ||
416 | /* Getting new symbols may change our opinion about what is | |
417 | frameless. */ | |
418 | reinit_frame_cache (); | |
419 | return; | |
420 | ||
421 | old_dld: | |
422 | error ("Debugging dynamic executables loaded via the hpux8 dld.sl is not supported.\n"); | |
423 | return; | |
b1c6705a JL |
424 | |
425 | err: | |
426 | error ("Error while reading dynamic library list.\n"); | |
427 | return; | |
bb140953 JL |
428 | } |
429 | ||
b1c6705a | 430 | |
bb140953 JL |
431 | /* This hook gets called just before the first instruction in the |
432 | inferior process is executed. | |
433 | ||
434 | This is our opportunity to set magic flags in the inferior so | |
435 | that GDB can be notified when a shared library is mapped in and | |
436 | to tell the dynamic linker that a private copy of the library is | |
437 | needed (so GDB can set breakpoints in the library). | |
438 | ||
439 | __dld_flags is the location of the magic flags; as of this implementation | |
440 | there are 3 flags of interest: | |
441 | ||
442 | bit 0 when set indicates that private copies of the libraries are needed | |
443 | bit 1 when set indicates that the callback hook routine is valid | |
444 | bit 2 when set indicates that the dynamic linker should maintain the | |
445 | __dld_list structure when loading/unloading libraries. | |
446 | ||
447 | Note that shared libraries are not mapped in at this time, so we have | |
448 | run the inferior until the libraries are mapped in. Typically this | |
449 | means running until the "_start" is called. */ | |
b1c6705a JL |
450 | |
451 | void | |
bb140953 JL |
452 | som_solib_create_inferior_hook() |
453 | { | |
454 | struct minimal_symbol *msymbol; | |
bb140953 | 455 | unsigned int dld_flags, status; |
b1c6705a | 456 | asection *shlib_info; |
bb140953 JL |
457 | char shadow_contents[BREAKPOINT_MAX], buf[4]; |
458 | CORE_ADDR anaddr; | |
459 | ||
f0c9e9e5 JL |
460 | if (symfile_objfile == NULL) |
461 | return; | |
462 | ||
bb140953 JL |
463 | /* First see if the objfile was dynamically linked. */ |
464 | shlib_info = bfd_get_section_by_name (symfile_objfile->obfd, "$SHLIB_INFO$"); | |
465 | if (!shlib_info) | |
466 | return; | |
467 | ||
468 | /* It's got a $SHLIB_INFO$ section, make sure it's not empty. */ | |
469 | if (bfd_section_size (symfile_objfile->obfd, shlib_info) == 0) | |
470 | return; | |
471 | ||
472 | /* Get the address of __dld_flags, if no such symbol exists, then we can | |
473 | not debug the shared code. */ | |
474 | msymbol = lookup_minimal_symbol ("__dld_flags", (struct objfile *) NULL); | |
475 | if (msymbol == NULL) | |
476 | { | |
477 | error ("Unable to find __dld_flags symbol in object file.\n"); | |
478 | return; | |
479 | } | |
480 | ||
481 | anaddr = SYMBOL_VALUE_ADDRESS (msymbol); | |
482 | /* Read the current contents. */ | |
483 | status = target_read_memory (anaddr, buf, 4); | |
484 | if (status != 0) | |
485 | { | |
486 | error ("Unable to read __dld_flags\n"); | |
487 | return; | |
488 | } | |
489 | dld_flags = extract_unsigned_integer (buf, 4); | |
490 | ||
491 | /* Turn on the flags we care about. */ | |
492 | dld_flags |= 0x5; | |
493 | store_unsigned_integer (buf, 4, dld_flags); | |
494 | status = target_write_memory (anaddr, buf, 4); | |
495 | if (status != 0) | |
496 | { | |
497 | error ("Unable to write __dld_flags\n"); | |
498 | return; | |
499 | } | |
500 | ||
501 | /* Now find the address of _start and set a breakpoint there. */ | |
502 | msymbol = lookup_minimal_symbol ("_start", symfile_objfile); | |
503 | if (msymbol == NULL) | |
504 | { | |
505 | error ("Unable to find _start symbol in object file.\n"); | |
506 | return; | |
507 | } | |
508 | ||
509 | anaddr = SYMBOL_VALUE_ADDRESS (msymbol); | |
510 | if (target_insert_breakpoint (anaddr, shadow_contents)) | |
511 | { | |
512 | error ("Unable to set breakpoint at _start.\n"); | |
513 | return; | |
514 | } | |
515 | ||
b1c6705a JL |
516 | /* Wipe out all knowledge of old shared libraries since their |
517 | mapping can change from one exec to another! */ | |
518 | while (so_list_head) | |
519 | { | |
520 | struct so_list *temp; | |
521 | ||
522 | free_objfile (so_list_head->objfile); | |
523 | temp = so_list_head; | |
524 | free (so_list_head); | |
525 | so_list_head = temp->next; | |
526 | } | |
527 | ||
bb140953 JL |
528 | /* Start the process again and wait for it to hit our breakpoint. */ |
529 | clear_proceed_status (); | |
530 | stop_soon_quietly = 1; | |
531 | stop_signal = TARGET_SIGNAL_0; | |
532 | do | |
533 | { | |
534 | target_resume (-1, 0, stop_signal); | |
535 | wait_for_inferior (); | |
536 | } | |
537 | while (stop_signal != TARGET_SIGNAL_TRAP); | |
538 | stop_soon_quietly = 0; | |
539 | ||
540 | /* All the libraries should be mapped in now. Remove our breakpoint and | |
541 | read in the symbol tables from the shared libraries. */ | |
542 | if (target_remove_breakpoint (anaddr, shadow_contents)) | |
543 | { | |
544 | error ("Unable to remove breakpoint at _start.\n"); | |
545 | return; | |
546 | } | |
547 | ||
548 | som_solib_add ((char *) 0, 0, (struct target_ops *) 0); | |
549 | } | |
b1c6705a | 550 | |
b1bbe38b JL |
551 | /* Return the GOT value for the shared library in which ADDR belongs. If |
552 | ADDR isn't in any known shared library, return zero. */ | |
553 | ||
554 | CORE_ADDR | |
555 | som_solib_get_got_by_pc (addr) | |
556 | CORE_ADDR addr; | |
557 | { | |
558 | struct so_list *so_list = so_list_head; | |
559 | CORE_ADDR got_value = 0; | |
560 | ||
561 | while (so_list) | |
562 | { | |
563 | if (so_list->som_solib.text_addr <= addr | |
564 | && so_list->som_solib.text_end > addr) | |
565 | { | |
566 | got_value = so_list->som_solib.got_value; | |
567 | break; | |
568 | } | |
569 | so_list = so_list->next; | |
570 | } | |
571 | return got_value; | |
572 | } | |
573 | ||
b1c6705a JL |
574 | /* Dump information about all the currently loaded shared libraries. */ |
575 | ||
576 | static void | |
577 | som_sharedlibrary_info_command (ignore, from_tty) | |
578 | char *ignore; | |
579 | int from_tty; | |
580 | { | |
581 | struct so_list *so_list = so_list_head; | |
582 | ||
583 | if (exec_bfd == NULL) | |
584 | { | |
585 | printf_unfiltered ("no exec file.\n"); | |
586 | return; | |
587 | } | |
588 | ||
589 | if (so_list == NULL) | |
590 | { | |
591 | printf_unfiltered ("No shared libraries loaded at this time.\n"); | |
592 | return; | |
593 | } | |
594 | ||
595 | printf_unfiltered ("Shared Object Libraries\n"); | |
596 | printf_unfiltered (" %-12s%-12s%-12s%-12s%-12s%-12s\n", | |
597 | " flags", " tstart", " tend", " dstart", " dend", " dlt"); | |
598 | while (so_list) | |
599 | { | |
600 | unsigned int flags; | |
601 | ||
602 | flags = so_list->som_solib.struct_version << 24; | |
603 | flags |= so_list->som_solib.bind_mode << 16; | |
604 | flags |= so_list->som_solib.library_version; | |
605 | printf_unfiltered ("%s\n", so_list->som_solib.name); | |
606 | printf_unfiltered (" %-12s", local_hex_string_custom (flags, "08l")); | |
607 | printf_unfiltered ("%-12s", | |
608 | local_hex_string_custom (so_list->som_solib.text_addr, "08l")); | |
609 | printf_unfiltered ("%-12s", | |
610 | local_hex_string_custom (so_list->som_solib.text_end, "08l")); | |
611 | printf_unfiltered ("%-12s", | |
612 | local_hex_string_custom (so_list->som_solib.data_start, "08l")); | |
613 | printf_unfiltered ("%-12s", | |
614 | local_hex_string_custom (so_list->som_solib.data_end, "08l")); | |
615 | printf_unfiltered ("%-12s\n", | |
616 | local_hex_string_custom (so_list->som_solib.got_value, "08l")); | |
617 | so_list = so_list->next; | |
618 | } | |
619 | } | |
620 | ||
621 | void | |
622 | _initialize_som_solib () | |
623 | { | |
624 | add_info ("sharedlibrary", som_sharedlibrary_info_command, | |
625 | "Status of loaded shared object libraries."); | |
626 | } |