Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Work with executable files, for GDB. |
4646aa9d | 2 | |
197e01b6 | 3 | Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, |
4646aa9d AC |
4 | 1997, 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, |
5 | Inc. | |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b JM |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software | |
197e01b6 EZ |
21 | Foundation, Inc., 51 Franklin Street, Fifth Floor, |
22 | Boston, MA 02110-1301, USA. */ | |
c906108c SS |
23 | |
24 | #include "defs.h" | |
25 | #include "frame.h" | |
26 | #include "inferior.h" | |
27 | #include "target.h" | |
28 | #include "gdbcmd.h" | |
29 | #include "language.h" | |
30 | #include "symfile.h" | |
31 | #include "objfiles.h" | |
c5f0f3d0 | 32 | #include "completer.h" |
fd0407d6 | 33 | #include "value.h" |
4646aa9d | 34 | #include "exec.h" |
ea53e89f | 35 | #include "observer.h" |
c906108c | 36 | |
c906108c | 37 | #include <fcntl.h> |
dbda9972 | 38 | #include "readline/readline.h" |
c906108c SS |
39 | #include "gdb_string.h" |
40 | ||
41 | #include "gdbcore.h" | |
42 | ||
43 | #include <ctype.h> | |
44 | #include "gdb_stat.h" | |
c906108c SS |
45 | |
46 | #include "xcoffsolib.h" | |
47 | ||
a14ed312 | 48 | struct vmap *map_vmap (bfd *, bfd *); |
c906108c | 49 | |
9a4105ab | 50 | void (*deprecated_file_changed_hook) (char *); |
c906108c SS |
51 | |
52 | /* Prototypes for local functions */ | |
53 | ||
a14ed312 | 54 | static void exec_close (int); |
c906108c | 55 | |
a14ed312 | 56 | static void file_command (char *, int); |
c906108c | 57 | |
a14ed312 | 58 | static void set_section_command (char *, int); |
c906108c | 59 | |
a14ed312 | 60 | static void exec_files_info (struct target_ops *); |
c906108c | 61 | |
a14ed312 | 62 | static void init_exec_ops (void); |
c906108c | 63 | |
a14ed312 | 64 | void _initialize_exec (void); |
c906108c | 65 | |
c906108c SS |
66 | /* The target vector for executable files. */ |
67 | ||
68 | struct target_ops exec_ops; | |
69 | ||
70 | /* The Binary File Descriptor handle for the executable file. */ | |
71 | ||
72 | bfd *exec_bfd = NULL; | |
73 | ||
74 | /* Whether to open exec and core files read-only or read-write. */ | |
75 | ||
76 | int write_files = 0; | |
920d2a44 AC |
77 | static void |
78 | show_write_files (struct ui_file *file, int from_tty, | |
79 | struct cmd_list_element *c, const char *value) | |
80 | { | |
81 | fprintf_filtered (file, _("Writing into executable and core files is %s.\n"), | |
82 | value); | |
83 | } | |
84 | ||
c906108c | 85 | |
c906108c SS |
86 | struct vmap *vmap; |
87 | ||
1adeb98a FN |
88 | void |
89 | exec_open (char *args, int from_tty) | |
90 | { | |
91 | target_preopen (from_tty); | |
92 | exec_file_attach (args, from_tty); | |
93 | } | |
94 | ||
c906108c | 95 | static void |
fba45db2 | 96 | exec_close (int quitting) |
c906108c SS |
97 | { |
98 | int need_symtab_cleanup = 0; | |
99 | struct vmap *vp, *nxt; | |
c5aa993b JM |
100 | |
101 | for (nxt = vmap; nxt != NULL;) | |
c906108c SS |
102 | { |
103 | vp = nxt; | |
104 | nxt = vp->nxt; | |
105 | ||
106 | /* if there is an objfile associated with this bfd, | |
c5aa993b JM |
107 | free_objfile() will do proper cleanup of objfile *and* bfd. */ |
108 | ||
c906108c SS |
109 | if (vp->objfile) |
110 | { | |
111 | free_objfile (vp->objfile); | |
112 | need_symtab_cleanup = 1; | |
113 | } | |
114 | else if (vp->bfd != exec_bfd) | |
115 | /* FIXME-leak: We should be freeing vp->name too, I think. */ | |
116 | if (!bfd_close (vp->bfd)) | |
8a3fe4f8 | 117 | warning (_("cannot close \"%s\": %s"), |
c906108c SS |
118 | vp->name, bfd_errmsg (bfd_get_error ())); |
119 | ||
120 | /* FIXME: This routine is #if 0'd in symfile.c. What should we | |
c5aa993b JM |
121 | be doing here? Should we just free everything in |
122 | vp->objfile->symtabs? Should free_objfile do that? | |
123 | FIXME-as-well: free_objfile already free'd vp->name, so it isn't | |
124 | valid here. */ | |
c906108c | 125 | free_named_symtabs (vp->name); |
b8c9b27d | 126 | xfree (vp); |
c906108c SS |
127 | } |
128 | ||
129 | vmap = NULL; | |
130 | ||
131 | if (exec_bfd) | |
132 | { | |
133 | char *name = bfd_get_filename (exec_bfd); | |
134 | ||
135 | if (!bfd_close (exec_bfd)) | |
8a3fe4f8 | 136 | warning (_("cannot close \"%s\": %s"), |
c906108c | 137 | name, bfd_errmsg (bfd_get_error ())); |
b8c9b27d | 138 | xfree (name); |
c906108c SS |
139 | exec_bfd = NULL; |
140 | } | |
141 | ||
142 | if (exec_ops.to_sections) | |
143 | { | |
b8c9b27d | 144 | xfree (exec_ops.to_sections); |
c906108c SS |
145 | exec_ops.to_sections = NULL; |
146 | exec_ops.to_sections_end = NULL; | |
147 | } | |
148 | } | |
149 | ||
1adeb98a FN |
150 | void |
151 | exec_file_clear (int from_tty) | |
152 | { | |
153 | /* Remove exec file. */ | |
154 | unpush_target (&exec_ops); | |
155 | ||
156 | if (from_tty) | |
a3f17187 | 157 | printf_unfiltered (_("No executable file now.\n")); |
1adeb98a FN |
158 | } |
159 | ||
c906108c SS |
160 | /* Process the first arg in ARGS as the new exec file. |
161 | ||
c5aa993b JM |
162 | This function is intended to be behave essentially the same |
163 | as exec_file_command, except that the latter will detect when | |
164 | a target is being debugged, and will ask the user whether it | |
165 | should be shut down first. (If the answer is "no", then the | |
166 | new file is ignored.) | |
c906108c | 167 | |
c5aa993b JM |
168 | This file is used by exec_file_command, to do the work of opening |
169 | and processing the exec file after any prompting has happened. | |
c906108c | 170 | |
c5aa993b JM |
171 | And, it is used by child_attach, when the attach command was |
172 | given a pid but not a exec pathname, and the attach command could | |
173 | figure out the pathname from the pid. (In this case, we shouldn't | |
174 | ask the user whether the current target should be shut down -- | |
1adeb98a FN |
175 | we're supplying the exec pathname late for good reason.) |
176 | ||
177 | ARGS is assumed to be the filename. */ | |
c906108c SS |
178 | |
179 | void | |
1adeb98a | 180 | exec_file_attach (char *filename, int from_tty) |
c906108c | 181 | { |
c906108c SS |
182 | /* Remove any previous exec file. */ |
183 | unpush_target (&exec_ops); | |
184 | ||
185 | /* Now open and digest the file the user requested, if any. */ | |
186 | ||
1adeb98a FN |
187 | if (!filename) |
188 | { | |
189 | if (from_tty) | |
a3f17187 | 190 | printf_unfiltered (_("No executable file now.\n")); |
1adeb98a FN |
191 | } |
192 | else | |
c906108c SS |
193 | { |
194 | char *scratch_pathname; | |
195 | int scratch_chan; | |
c5aa993b | 196 | |
014d698b | 197 | scratch_chan = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, filename, |
c5aa993b | 198 | write_files ? O_RDWR | O_BINARY : O_RDONLY | O_BINARY, 0, |
c906108c | 199 | &scratch_pathname); |
cfc3008e | 200 | #if defined(__GO32__) || defined(_WIN32) || defined(__CYGWIN__) |
c906108c | 201 | if (scratch_chan < 0) |
c5aa993b JM |
202 | { |
203 | char *exename = alloca (strlen (filename) + 5); | |
204 | strcat (strcpy (exename, filename), ".exe"); | |
014d698b EZ |
205 | scratch_chan = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, exename, |
206 | write_files ? O_RDWR | O_BINARY : O_RDONLY | O_BINARY, 0, | |
207 | &scratch_pathname); | |
c5aa993b | 208 | } |
c906108c SS |
209 | #endif |
210 | if (scratch_chan < 0) | |
211 | perror_with_name (filename); | |
9f76c2cd MM |
212 | exec_bfd = bfd_fopen (scratch_pathname, gnutarget, |
213 | write_files ? FOPEN_RUB : FOPEN_RB, | |
214 | scratch_chan); | |
c906108c SS |
215 | |
216 | if (!exec_bfd) | |
8a3fe4f8 | 217 | error (_("\"%s\": could not open as an executable file: %s"), |
c906108c SS |
218 | scratch_pathname, bfd_errmsg (bfd_get_error ())); |
219 | ||
220 | /* At this point, scratch_pathname and exec_bfd->name both point to the | |
c5aa993b JM |
221 | same malloc'd string. However exec_close() will attempt to free it |
222 | via the exec_bfd->name pointer, so we need to make another copy and | |
223 | leave exec_bfd as the new owner of the original copy. */ | |
c2d11a7d | 224 | scratch_pathname = xstrdup (scratch_pathname); |
b8c9b27d | 225 | make_cleanup (xfree, scratch_pathname); |
c5aa993b | 226 | |
c906108c SS |
227 | if (!bfd_check_format (exec_bfd, bfd_object)) |
228 | { | |
229 | /* Make sure to close exec_bfd, or else "run" might try to use | |
230 | it. */ | |
231 | exec_close (0); | |
8a3fe4f8 | 232 | error (_("\"%s\": not in executable format: %s"), |
c906108c SS |
233 | scratch_pathname, bfd_errmsg (bfd_get_error ())); |
234 | } | |
235 | ||
236 | /* FIXME - This should only be run for RS6000, but the ifdef is a poor | |
c5aa993b | 237 | way to accomplish. */ |
52d16ba8 | 238 | #ifdef DEPRECATED_IBM6000_TARGET |
c906108c SS |
239 | /* Setup initial vmap. */ |
240 | ||
241 | map_vmap (exec_bfd, 0); | |
242 | if (vmap == NULL) | |
243 | { | |
244 | /* Make sure to close exec_bfd, or else "run" might try to use | |
245 | it. */ | |
246 | exec_close (0); | |
8a3fe4f8 | 247 | error (_("\"%s\": can't find the file sections: %s"), |
c906108c SS |
248 | scratch_pathname, bfd_errmsg (bfd_get_error ())); |
249 | } | |
52d16ba8 | 250 | #endif /* DEPRECATED_IBM6000_TARGET */ |
c906108c SS |
251 | |
252 | if (build_section_table (exec_bfd, &exec_ops.to_sections, | |
c5aa993b | 253 | &exec_ops.to_sections_end)) |
c906108c SS |
254 | { |
255 | /* Make sure to close exec_bfd, or else "run" might try to use | |
256 | it. */ | |
257 | exec_close (0); | |
8a3fe4f8 | 258 | error (_("\"%s\": can't find the file sections: %s"), |
c906108c SS |
259 | scratch_pathname, bfd_errmsg (bfd_get_error ())); |
260 | } | |
261 | ||
c906108c SS |
262 | validate_files (); |
263 | ||
264 | set_gdbarch_from_file (exec_bfd); | |
265 | ||
266 | push_target (&exec_ops); | |
267 | ||
268 | /* Tell display code (if any) about the changed file name. */ | |
9a4105ab AC |
269 | if (deprecated_exec_file_display_hook) |
270 | (*deprecated_exec_file_display_hook) (filename); | |
c906108c | 271 | } |
ce7d4522 | 272 | bfd_cache_close_all (); |
ea53e89f | 273 | observer_notify_executable_changed (NULL); |
c906108c SS |
274 | } |
275 | ||
276 | /* Process the first arg in ARGS as the new exec file. | |
277 | ||
c5aa993b JM |
278 | Note that we have to explicitly ignore additional args, since we can |
279 | be called from file_command(), which also calls symbol_file_command() | |
1adeb98a FN |
280 | which can take multiple args. |
281 | ||
282 | If ARGS is NULL, we just want to close the exec file. */ | |
c906108c | 283 | |
1adeb98a | 284 | static void |
fba45db2 | 285 | exec_file_command (char *args, int from_tty) |
c906108c | 286 | { |
1adeb98a FN |
287 | char **argv; |
288 | char *filename; | |
289 | ||
c906108c | 290 | target_preopen (from_tty); |
1adeb98a FN |
291 | |
292 | if (args) | |
293 | { | |
294 | /* Scan through the args and pick up the first non option arg | |
295 | as the filename. */ | |
296 | ||
297 | argv = buildargv (args); | |
298 | if (argv == NULL) | |
299 | nomem (0); | |
300 | ||
301 | make_cleanup_freeargv (argv); | |
302 | ||
303 | for (; (*argv != NULL) && (**argv == '-'); argv++) | |
304 | {; | |
305 | } | |
306 | if (*argv == NULL) | |
8a3fe4f8 | 307 | error (_("No executable file name was specified")); |
1adeb98a FN |
308 | |
309 | filename = tilde_expand (*argv); | |
310 | make_cleanup (xfree, filename); | |
311 | exec_file_attach (filename, from_tty); | |
312 | } | |
313 | else | |
314 | exec_file_attach (NULL, from_tty); | |
c906108c SS |
315 | } |
316 | ||
317 | /* Set both the exec file and the symbol file, in one command. | |
318 | What a novelty. Why did GDB go through four major releases before this | |
319 | command was added? */ | |
320 | ||
321 | static void | |
fba45db2 | 322 | file_command (char *arg, int from_tty) |
c906108c SS |
323 | { |
324 | /* FIXME, if we lose on reading the symbol file, we should revert | |
325 | the exec file, but that's rough. */ | |
326 | exec_file_command (arg, from_tty); | |
327 | symbol_file_command (arg, from_tty); | |
9a4105ab AC |
328 | if (deprecated_file_changed_hook) |
329 | deprecated_file_changed_hook (arg); | |
c906108c | 330 | } |
c906108c | 331 | \f |
c5aa993b | 332 | |
c906108c SS |
333 | /* Locate all mappable sections of a BFD file. |
334 | table_pp_char is a char * to get it through bfd_map_over_sections; | |
335 | we cast it back to its proper type. */ | |
336 | ||
337 | static void | |
7be0c536 AC |
338 | add_to_section_table (bfd *abfd, struct bfd_section *asect, |
339 | void *table_pp_char) | |
c906108c | 340 | { |
c5aa993b | 341 | struct section_table **table_pp = (struct section_table **) table_pp_char; |
c906108c SS |
342 | flagword aflag; |
343 | ||
344 | aflag = bfd_get_section_flags (abfd, asect); | |
345 | if (!(aflag & SEC_ALLOC)) | |
346 | return; | |
347 | if (0 == bfd_section_size (abfd, asect)) | |
348 | return; | |
349 | (*table_pp)->bfd = abfd; | |
350 | (*table_pp)->the_bfd_section = asect; | |
351 | (*table_pp)->addr = bfd_section_vma (abfd, asect); | |
352 | (*table_pp)->endaddr = (*table_pp)->addr + bfd_section_size (abfd, asect); | |
353 | (*table_pp)++; | |
354 | } | |
355 | ||
356 | /* Builds a section table, given args BFD, SECTABLE_PTR, SECEND_PTR. | |
357 | Returns 0 if OK, 1 on error. */ | |
358 | ||
359 | int | |
7be0c536 | 360 | build_section_table (struct bfd *some_bfd, struct section_table **start, |
fba45db2 | 361 | struct section_table **end) |
c906108c SS |
362 | { |
363 | unsigned count; | |
364 | ||
365 | count = bfd_count_sections (some_bfd); | |
366 | if (*start) | |
b8c9b27d | 367 | xfree (* start); |
c906108c SS |
368 | *start = (struct section_table *) xmalloc (count * sizeof (**start)); |
369 | *end = *start; | |
c5aa993b | 370 | bfd_map_over_sections (some_bfd, add_to_section_table, (char *) end); |
c906108c | 371 | if (*end > *start + count) |
e2e0b3e5 | 372 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
373 | /* We could realloc the table, but it probably loses for most files. */ |
374 | return 0; | |
375 | } | |
376 | \f | |
377 | static void | |
7be0c536 | 378 | bfdsec_to_vmap (struct bfd *abfd, struct bfd_section *sect, void *arg3) |
c906108c SS |
379 | { |
380 | struct vmap_and_bfd *vmap_bfd = (struct vmap_and_bfd *) arg3; | |
381 | struct vmap *vp; | |
382 | ||
383 | vp = vmap_bfd->pvmap; | |
384 | ||
385 | if ((bfd_get_section_flags (abfd, sect) & SEC_LOAD) == 0) | |
386 | return; | |
387 | ||
dc6a2ca4 | 388 | if (strcmp (bfd_section_name (abfd, sect), ".text") == 0) |
c906108c SS |
389 | { |
390 | vp->tstart = bfd_section_vma (abfd, sect); | |
391 | vp->tend = vp->tstart + bfd_section_size (abfd, sect); | |
392 | vp->tvma = bfd_section_vma (abfd, sect); | |
393 | vp->toffs = sect->filepos; | |
394 | } | |
dc6a2ca4 | 395 | else if (strcmp (bfd_section_name (abfd, sect), ".data") == 0) |
c906108c SS |
396 | { |
397 | vp->dstart = bfd_section_vma (abfd, sect); | |
398 | vp->dend = vp->dstart + bfd_section_size (abfd, sect); | |
399 | vp->dvma = bfd_section_vma (abfd, sect); | |
400 | } | |
401 | /* Silently ignore other types of sections. (FIXME?) */ | |
402 | } | |
403 | ||
404 | /* Make a vmap for ABFD which might be a member of the archive ARCH. | |
405 | Return the new vmap. */ | |
406 | ||
407 | struct vmap * | |
fba45db2 | 408 | map_vmap (bfd *abfd, bfd *arch) |
c906108c SS |
409 | { |
410 | struct vmap_and_bfd vmap_bfd; | |
411 | struct vmap *vp, **vpp; | |
412 | ||
413 | vp = (struct vmap *) xmalloc (sizeof (*vp)); | |
414 | memset ((char *) vp, '\0', sizeof (*vp)); | |
415 | vp->nxt = 0; | |
416 | vp->bfd = abfd; | |
417 | vp->name = bfd_get_filename (arch ? arch : abfd); | |
418 | vp->member = arch ? bfd_get_filename (abfd) : ""; | |
c5aa993b | 419 | |
c906108c SS |
420 | vmap_bfd.pbfd = arch; |
421 | vmap_bfd.pvmap = vp; | |
422 | bfd_map_over_sections (abfd, bfdsec_to_vmap, &vmap_bfd); | |
423 | ||
424 | /* Find the end of the list and append. */ | |
425 | for (vpp = &vmap; *vpp; vpp = &(*vpp)->nxt) | |
426 | ; | |
427 | *vpp = vp; | |
428 | ||
429 | return vp; | |
430 | } | |
431 | \f | |
432 | /* Read or write the exec file. | |
433 | ||
434 | Args are address within a BFD file, address within gdb address-space, | |
435 | length, and a flag indicating whether to read or write. | |
436 | ||
437 | Result is a length: | |
438 | ||
c5aa993b JM |
439 | 0: We cannot handle this address and length. |
440 | > 0: We have handled N bytes starting at this address. | |
441 | (If N == length, we did it all.) We might be able | |
442 | to handle more bytes beyond this length, but no | |
443 | promises. | |
444 | < 0: We cannot handle this address, but if somebody | |
445 | else handles (-N) bytes, we can start from there. | |
c906108c | 446 | |
c5aa993b JM |
447 | The same routine is used to handle both core and exec files; |
448 | we just tail-call it with more arguments to select between them. */ | |
c906108c SS |
449 | |
450 | int | |
1b0ba102 AC |
451 | xfer_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len, int write, |
452 | struct mem_attrib *attrib, struct target_ops *target) | |
c906108c | 453 | { |
020cc13c | 454 | int res; |
c906108c SS |
455 | struct section_table *p; |
456 | CORE_ADDR nextsectaddr, memend; | |
88665544 | 457 | asection *section = NULL; |
c906108c SS |
458 | |
459 | if (len <= 0) | |
e2e0b3e5 | 460 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
461 | |
462 | if (overlay_debugging) | |
463 | { | |
464 | section = find_pc_overlay (memaddr); | |
465 | if (pc_in_unmapped_range (memaddr, section)) | |
466 | memaddr = overlay_mapped_address (memaddr, section); | |
467 | } | |
468 | ||
469 | memend = memaddr + len; | |
c906108c SS |
470 | nextsectaddr = memend; |
471 | ||
c906108c SS |
472 | for (p = target->to_sections; p < target->to_sections_end; p++) |
473 | { | |
474 | if (overlay_debugging && section && p->the_bfd_section && | |
475 | strcmp (section->name, p->the_bfd_section->name) != 0) | |
c5aa993b | 476 | continue; /* not the section we need */ |
c906108c | 477 | if (memaddr >= p->addr) |
3db26b01 JB |
478 | { |
479 | if (memend <= p->endaddr) | |
480 | { | |
481 | /* Entire transfer is within this section. */ | |
85302095 AC |
482 | if (write) |
483 | res = bfd_set_section_contents (p->bfd, p->the_bfd_section, | |
484 | myaddr, memaddr - p->addr, | |
485 | len); | |
486 | else | |
487 | res = bfd_get_section_contents (p->bfd, p->the_bfd_section, | |
488 | myaddr, memaddr - p->addr, | |
489 | len); | |
3db26b01 JB |
490 | return (res != 0) ? len : 0; |
491 | } | |
492 | else if (memaddr >= p->endaddr) | |
493 | { | |
494 | /* This section ends before the transfer starts. */ | |
495 | continue; | |
496 | } | |
497 | else | |
498 | { | |
499 | /* This section overlaps the transfer. Just do half. */ | |
500 | len = p->endaddr - memaddr; | |
85302095 AC |
501 | if (write) |
502 | res = bfd_set_section_contents (p->bfd, p->the_bfd_section, | |
503 | myaddr, memaddr - p->addr, | |
504 | len); | |
505 | else | |
506 | res = bfd_get_section_contents (p->bfd, p->the_bfd_section, | |
507 | myaddr, memaddr - p->addr, | |
508 | len); | |
3db26b01 JB |
509 | return (res != 0) ? len : 0; |
510 | } | |
511 | } | |
c906108c SS |
512 | else |
513 | nextsectaddr = min (nextsectaddr, p->addr); | |
514 | } | |
515 | ||
516 | if (nextsectaddr >= memend) | |
c5aa993b | 517 | return 0; /* We can't help */ |
c906108c | 518 | else |
c5aa993b | 519 | return -(nextsectaddr - memaddr); /* Next boundary where we can help */ |
c906108c | 520 | } |
c906108c | 521 | \f |
c5aa993b | 522 | |
c906108c | 523 | void |
fba45db2 | 524 | print_section_info (struct target_ops *t, bfd *abfd) |
c906108c SS |
525 | { |
526 | struct section_table *p; | |
bb599908 PH |
527 | /* FIXME: 16 is not wide enough when TARGET_ADDR_BIT > 64. */ |
528 | int wid = TARGET_ADDR_BIT <= 32 ? 8 : 16; | |
c906108c | 529 | |
c5aa993b | 530 | printf_filtered ("\t`%s', ", bfd_get_filename (abfd)); |
c906108c | 531 | wrap_here (" "); |
a3f17187 | 532 | printf_filtered (_("file type %s.\n"), bfd_get_target (abfd)); |
c906108c SS |
533 | if (abfd == exec_bfd) |
534 | { | |
a3f17187 | 535 | printf_filtered (_("\tEntry point: ")); |
66bf4b3a | 536 | deprecated_print_address_numeric (bfd_get_start_address (abfd), 1, gdb_stdout); |
c906108c SS |
537 | printf_filtered ("\n"); |
538 | } | |
539 | for (p = t->to_sections; p < t->to_sections_end; p++) | |
540 | { | |
bb599908 PH |
541 | printf_filtered ("\t%s", hex_string_custom (p->addr, wid)); |
542 | printf_filtered (" - %s", hex_string_custom (p->endaddr, wid)); | |
bcf16802 KB |
543 | |
544 | /* FIXME: A format of "08l" is not wide enough for file offsets | |
545 | larger than 4GB. OTOH, making it "016l" isn't desirable either | |
546 | since most output will then be much wider than necessary. It | |
547 | may make sense to test the size of the file and choose the | |
548 | format string accordingly. */ | |
a3f17187 | 549 | /* FIXME: i18n: Need to rewrite this sentence. */ |
c906108c SS |
550 | if (info_verbose) |
551 | printf_filtered (" @ %s", | |
bb599908 | 552 | hex_string_custom (p->the_bfd_section->filepos, 8)); |
c906108c SS |
553 | printf_filtered (" is %s", bfd_section_name (p->bfd, p->the_bfd_section)); |
554 | if (p->bfd != abfd) | |
a3f17187 | 555 | printf_filtered (" in %s", bfd_get_filename (p->bfd)); |
c906108c SS |
556 | printf_filtered ("\n"); |
557 | } | |
558 | } | |
559 | ||
560 | static void | |
fba45db2 | 561 | exec_files_info (struct target_ops *t) |
c906108c SS |
562 | { |
563 | print_section_info (t, exec_bfd); | |
564 | ||
565 | if (vmap) | |
566 | { | |
567 | struct vmap *vp; | |
568 | ||
a3f17187 | 569 | printf_unfiltered (_("\tMapping info for file `%s'.\n"), vmap->name); |
d4f3574e SS |
570 | printf_unfiltered ("\t %*s %*s %*s %*s %8.8s %s\n", |
571 | strlen_paddr (), "tstart", | |
572 | strlen_paddr (), "tend", | |
573 | strlen_paddr (), "dstart", | |
574 | strlen_paddr (), "dend", | |
575 | "section", | |
c5aa993b JM |
576 | "file(member)"); |
577 | ||
578 | for (vp = vmap; vp; vp = vp->nxt) | |
d4f3574e SS |
579 | printf_unfiltered ("\t0x%s 0x%s 0x%s 0x%s %s%s%s%s\n", |
580 | paddr (vp->tstart), | |
581 | paddr (vp->tend), | |
582 | paddr (vp->dstart), | |
583 | paddr (vp->dend), | |
584 | vp->name, | |
c5aa993b JM |
585 | *vp->member ? "(" : "", vp->member, |
586 | *vp->member ? ")" : ""); | |
c906108c SS |
587 | } |
588 | } | |
589 | ||
0f71a2f6 JM |
590 | /* msnyder 5/21/99: |
591 | exec_set_section_offsets sets the offsets of all the sections | |
592 | in the exec objfile. */ | |
593 | ||
594 | void | |
fba45db2 KB |
595 | exec_set_section_offsets (bfd_signed_vma text_off, bfd_signed_vma data_off, |
596 | bfd_signed_vma bss_off) | |
0f71a2f6 JM |
597 | { |
598 | struct section_table *sect; | |
c5aa993b JM |
599 | |
600 | for (sect = exec_ops.to_sections; | |
601 | sect < exec_ops.to_sections_end; | |
0f71a2f6 JM |
602 | sect++) |
603 | { | |
604 | flagword flags; | |
605 | ||
606 | flags = bfd_get_section_flags (exec_bfd, sect->the_bfd_section); | |
607 | ||
608 | if (flags & SEC_CODE) | |
609 | { | |
c5aa993b | 610 | sect->addr += text_off; |
0f71a2f6 JM |
611 | sect->endaddr += text_off; |
612 | } | |
613 | else if (flags & (SEC_DATA | SEC_LOAD)) | |
614 | { | |
c5aa993b | 615 | sect->addr += data_off; |
0f71a2f6 JM |
616 | sect->endaddr += data_off; |
617 | } | |
618 | else if (flags & SEC_ALLOC) | |
619 | { | |
c5aa993b | 620 | sect->addr += bss_off; |
0f71a2f6 JM |
621 | sect->endaddr += bss_off; |
622 | } | |
623 | } | |
624 | } | |
625 | ||
c906108c | 626 | static void |
fba45db2 | 627 | set_section_command (char *args, int from_tty) |
c906108c SS |
628 | { |
629 | struct section_table *p; | |
630 | char *secname; | |
631 | unsigned seclen; | |
632 | unsigned long secaddr; | |
633 | char secprint[100]; | |
634 | long offset; | |
635 | ||
636 | if (args == 0) | |
8a3fe4f8 | 637 | error (_("Must specify section name and its virtual address")); |
c906108c SS |
638 | |
639 | /* Parse out section name */ | |
c5aa993b | 640 | for (secname = args; !isspace (*args); args++); |
c906108c SS |
641 | seclen = args - secname; |
642 | ||
643 | /* Parse out new virtual address */ | |
644 | secaddr = parse_and_eval_address (args); | |
645 | ||
c5aa993b JM |
646 | for (p = exec_ops.to_sections; p < exec_ops.to_sections_end; p++) |
647 | { | |
648 | if (!strncmp (secname, bfd_section_name (exec_bfd, p->the_bfd_section), seclen) | |
649 | && bfd_section_name (exec_bfd, p->the_bfd_section)[seclen] == '\0') | |
650 | { | |
651 | offset = secaddr - p->addr; | |
652 | p->addr += offset; | |
653 | p->endaddr += offset; | |
654 | if (from_tty) | |
655 | exec_files_info (&exec_ops); | |
656 | return; | |
657 | } | |
c906108c | 658 | } |
c906108c SS |
659 | if (seclen >= sizeof (secprint)) |
660 | seclen = sizeof (secprint) - 1; | |
661 | strncpy (secprint, secname, seclen); | |
662 | secprint[seclen] = '\0'; | |
8a3fe4f8 | 663 | error (_("Section %s not found"), secprint); |
c906108c SS |
664 | } |
665 | ||
c1bd25fd DJ |
666 | /* If we can find a section in FILENAME with BFD index INDEX, and the |
667 | user has not assigned an address to it yet (via "set section"), adjust it | |
668 | to ADDRESS. */ | |
669 | ||
670 | void | |
671 | exec_set_section_address (const char *filename, int index, CORE_ADDR address) | |
672 | { | |
673 | struct section_table *p; | |
674 | ||
675 | for (p = exec_ops.to_sections; p < exec_ops.to_sections_end; p++) | |
676 | { | |
677 | if (strcmp (filename, p->bfd->filename) == 0 | |
678 | && index == p->the_bfd_section->index | |
679 | && p->addr == 0) | |
680 | { | |
681 | p->addr = address; | |
682 | p->endaddr += address; | |
683 | } | |
684 | } | |
685 | } | |
686 | ||
c906108c SS |
687 | /* If mourn is being called in all the right places, this could be say |
688 | `gdb internal error' (since generic_mourn calls | |
689 | breakpoint_init_inferior). */ | |
690 | ||
691 | static int | |
8181d85f | 692 | ignore (struct bp_target_info *bp_tgt) |
c906108c SS |
693 | { |
694 | return 0; | |
695 | } | |
696 | ||
be4d1333 MS |
697 | /* Find mapped memory. */ |
698 | ||
699 | extern void | |
700 | exec_set_find_memory_regions (int (*func) (int (*) (CORE_ADDR, | |
701 | unsigned long, | |
702 | int, int, int, | |
703 | void *), | |
704 | void *)) | |
705 | { | |
706 | exec_ops.to_find_memory_regions = func; | |
707 | } | |
708 | ||
709 | static char *exec_make_note_section (bfd *, int *); | |
710 | ||
c906108c SS |
711 | /* Fill in the exec file target vector. Very few entries need to be |
712 | defined. */ | |
713 | ||
be4d1333 | 714 | static void |
fba45db2 | 715 | init_exec_ops (void) |
c906108c SS |
716 | { |
717 | exec_ops.to_shortname = "exec"; | |
718 | exec_ops.to_longname = "Local exec file"; | |
719 | exec_ops.to_doc = "Use an executable file as a target.\n\ | |
720 | Specify the filename of the executable file."; | |
1adeb98a | 721 | exec_ops.to_open = exec_open; |
c906108c SS |
722 | exec_ops.to_close = exec_close; |
723 | exec_ops.to_attach = find_default_attach; | |
c8e73a31 | 724 | exec_ops.deprecated_xfer_memory = xfer_memory; |
c906108c SS |
725 | exec_ops.to_files_info = exec_files_info; |
726 | exec_ops.to_insert_breakpoint = ignore; | |
727 | exec_ops.to_remove_breakpoint = ignore; | |
728 | exec_ops.to_create_inferior = find_default_create_inferior; | |
c906108c SS |
729 | exec_ops.to_stratum = file_stratum; |
730 | exec_ops.to_has_memory = 1; | |
be4d1333 | 731 | exec_ops.to_make_corefile_notes = exec_make_note_section; |
c5aa993b | 732 | exec_ops.to_magic = OPS_MAGIC; |
c906108c SS |
733 | } |
734 | ||
735 | void | |
fba45db2 | 736 | _initialize_exec (void) |
c906108c SS |
737 | { |
738 | struct cmd_list_element *c; | |
739 | ||
740 | init_exec_ops (); | |
741 | ||
742 | if (!dbx_commands) | |
743 | { | |
1a966eab AC |
744 | c = add_cmd ("file", class_files, file_command, _("\ |
745 | Use FILE as program to be debugged.\n\ | |
c906108c SS |
746 | It is read for its symbols, for getting the contents of pure memory,\n\ |
747 | and it is the program executed when you use the `run' command.\n\ | |
748 | If FILE cannot be found as specified, your execution directory path\n\ | |
749 | ($PATH) is searched for a command of that name.\n\ | |
1a966eab | 750 | No arg means to have no executable file and no symbols."), &cmdlist); |
5ba2abeb | 751 | set_cmd_completer (c, filename_completer); |
c906108c SS |
752 | } |
753 | ||
1a966eab AC |
754 | c = add_cmd ("exec-file", class_files, exec_file_command, _("\ |
755 | Use FILE as program for getting contents of pure memory.\n\ | |
c906108c SS |
756 | If FILE cannot be found as specified, your execution directory path\n\ |
757 | is searched for a command of that name.\n\ | |
1a966eab | 758 | No arg means have no executable file."), &cmdlist); |
5ba2abeb | 759 | set_cmd_completer (c, filename_completer); |
c906108c | 760 | |
1bedd215 AC |
761 | add_com ("section", class_files, set_section_command, _("\ |
762 | Change the base address of section SECTION of the exec file to ADDR.\n\ | |
c906108c SS |
763 | This can be used if the exec file does not contain section addresses,\n\ |
764 | (such as in the a.out format), or when the addresses specified in the\n\ | |
765 | file itself are wrong. Each section must be changed separately. The\n\ | |
1bedd215 | 766 | ``info files'' command lists all the sections and their addresses.")); |
c906108c | 767 | |
5bf193a2 AC |
768 | add_setshow_boolean_cmd ("write", class_support, &write_files, _("\ |
769 | Set writing into executable and core files."), _("\ | |
770 | Show writing into executable and core files."), NULL, | |
771 | NULL, | |
920d2a44 | 772 | show_write_files, |
5bf193a2 | 773 | &setlist, &showlist); |
c5aa993b | 774 | |
c906108c SS |
775 | add_target (&exec_ops); |
776 | } | |
be4d1333 MS |
777 | |
778 | static char * | |
779 | exec_make_note_section (bfd *obfd, int *note_size) | |
780 | { | |
8a3fe4f8 | 781 | error (_("Can't create a corefile")); |
be4d1333 | 782 | } |