Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Work with executable files, for GDB. |
4646aa9d AC |
2 | |
3 | Copyright 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, | |
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 | |
21 | Foundation, Inc., 59 Temple Place - Suite 330, | |
22 | Boston, MA 02111-1307, 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" |
c906108c SS |
35 | |
36 | #ifdef USG | |
37 | #include <sys/types.h> | |
38 | #endif | |
39 | ||
40 | #include <fcntl.h> | |
dbda9972 | 41 | #include "readline/readline.h" |
c906108c SS |
42 | #include "gdb_string.h" |
43 | ||
44 | #include "gdbcore.h" | |
45 | ||
46 | #include <ctype.h> | |
47 | #include "gdb_stat.h" | |
48 | #ifndef O_BINARY | |
49 | #define O_BINARY 0 | |
50 | #endif | |
51 | ||
52 | #include "xcoffsolib.h" | |
53 | ||
a14ed312 | 54 | struct vmap *map_vmap (bfd *, bfd *); |
c906108c | 55 | |
9a4105ab | 56 | void (*deprecated_file_changed_hook) (char *); |
c906108c SS |
57 | |
58 | /* Prototypes for local functions */ | |
59 | ||
a14ed312 | 60 | static void exec_close (int); |
c906108c | 61 | |
a14ed312 | 62 | static void file_command (char *, int); |
c906108c | 63 | |
a14ed312 | 64 | static void set_section_command (char *, int); |
c906108c | 65 | |
a14ed312 | 66 | static void exec_files_info (struct target_ops *); |
c906108c | 67 | |
a14ed312 | 68 | static int ignore (CORE_ADDR, char *); |
c906108c | 69 | |
a14ed312 | 70 | static void init_exec_ops (void); |
c906108c | 71 | |
a14ed312 | 72 | void _initialize_exec (void); |
c906108c | 73 | |
c906108c SS |
74 | /* The target vector for executable files. */ |
75 | ||
76 | struct target_ops exec_ops; | |
77 | ||
78 | /* The Binary File Descriptor handle for the executable file. */ | |
79 | ||
80 | bfd *exec_bfd = NULL; | |
81 | ||
82 | /* Whether to open exec and core files read-only or read-write. */ | |
83 | ||
84 | int write_files = 0; | |
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)) | |
117 | warning ("cannot close \"%s\": %s", | |
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)) | |
136 | warning ("cannot close \"%s\": %s", | |
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) | |
157 | printf_unfiltered ("No executable file now.\n"); | |
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) | |
190 | printf_unfiltered ("No executable file now.\n"); | |
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); | |
212 | exec_bfd = bfd_fdopenr (scratch_pathname, gnutarget, scratch_chan); | |
213 | ||
214 | if (!exec_bfd) | |
215 | error ("\"%s\": could not open as an executable file: %s", | |
216 | scratch_pathname, bfd_errmsg (bfd_get_error ())); | |
217 | ||
218 | /* At this point, scratch_pathname and exec_bfd->name both point to the | |
c5aa993b JM |
219 | same malloc'd string. However exec_close() will attempt to free it |
220 | via the exec_bfd->name pointer, so we need to make another copy and | |
221 | leave exec_bfd as the new owner of the original copy. */ | |
c2d11a7d | 222 | scratch_pathname = xstrdup (scratch_pathname); |
b8c9b27d | 223 | make_cleanup (xfree, scratch_pathname); |
c5aa993b | 224 | |
c906108c SS |
225 | if (!bfd_check_format (exec_bfd, bfd_object)) |
226 | { | |
227 | /* Make sure to close exec_bfd, or else "run" might try to use | |
228 | it. */ | |
229 | exec_close (0); | |
230 | error ("\"%s\": not in executable format: %s", | |
231 | scratch_pathname, bfd_errmsg (bfd_get_error ())); | |
232 | } | |
233 | ||
234 | /* FIXME - This should only be run for RS6000, but the ifdef is a poor | |
c5aa993b | 235 | way to accomplish. */ |
52d16ba8 | 236 | #ifdef DEPRECATED_IBM6000_TARGET |
c906108c SS |
237 | /* Setup initial vmap. */ |
238 | ||
239 | map_vmap (exec_bfd, 0); | |
240 | if (vmap == NULL) | |
241 | { | |
242 | /* Make sure to close exec_bfd, or else "run" might try to use | |
243 | it. */ | |
244 | exec_close (0); | |
245 | error ("\"%s\": can't find the file sections: %s", | |
246 | scratch_pathname, bfd_errmsg (bfd_get_error ())); | |
247 | } | |
52d16ba8 | 248 | #endif /* DEPRECATED_IBM6000_TARGET */ |
c906108c SS |
249 | |
250 | if (build_section_table (exec_bfd, &exec_ops.to_sections, | |
c5aa993b | 251 | &exec_ops.to_sections_end)) |
c906108c SS |
252 | { |
253 | /* Make sure to close exec_bfd, or else "run" might try to use | |
254 | it. */ | |
255 | exec_close (0); | |
c5aa993b | 256 | error ("\"%s\": can't find the file sections: %s", |
c906108c SS |
257 | scratch_pathname, bfd_errmsg (bfd_get_error ())); |
258 | } | |
259 | ||
b9fbf434 AC |
260 | #ifdef DEPRECATED_HPUX_TEXT_END |
261 | DEPRECATED_HPUX_TEXT_END (&exec_ops); | |
262 | #endif | |
c906108c SS |
263 | |
264 | validate_files (); | |
265 | ||
266 | set_gdbarch_from_file (exec_bfd); | |
267 | ||
268 | push_target (&exec_ops); | |
269 | ||
270 | /* Tell display code (if any) about the changed file name. */ | |
9a4105ab AC |
271 | if (deprecated_exec_file_display_hook) |
272 | (*deprecated_exec_file_display_hook) (filename); | |
c906108c | 273 | } |
ce7d4522 | 274 | bfd_cache_close_all (); |
c906108c SS |
275 | } |
276 | ||
277 | /* Process the first arg in ARGS as the new exec file. | |
278 | ||
c5aa993b JM |
279 | Note that we have to explicitly ignore additional args, since we can |
280 | be called from file_command(), which also calls symbol_file_command() | |
1adeb98a FN |
281 | which can take multiple args. |
282 | ||
283 | If ARGS is NULL, we just want to close the exec file. */ | |
c906108c | 284 | |
1adeb98a | 285 | static void |
fba45db2 | 286 | exec_file_command (char *args, int from_tty) |
c906108c | 287 | { |
1adeb98a FN |
288 | char **argv; |
289 | char *filename; | |
290 | ||
c906108c | 291 | target_preopen (from_tty); |
1adeb98a FN |
292 | |
293 | if (args) | |
294 | { | |
295 | /* Scan through the args and pick up the first non option arg | |
296 | as the filename. */ | |
297 | ||
298 | argv = buildargv (args); | |
299 | if (argv == NULL) | |
300 | nomem (0); | |
301 | ||
302 | make_cleanup_freeargv (argv); | |
303 | ||
304 | for (; (*argv != NULL) && (**argv == '-'); argv++) | |
305 | {; | |
306 | } | |
307 | if (*argv == NULL) | |
308 | error ("No executable file name was specified"); | |
309 | ||
310 | filename = tilde_expand (*argv); | |
311 | make_cleanup (xfree, filename); | |
312 | exec_file_attach (filename, from_tty); | |
313 | } | |
314 | else | |
315 | exec_file_attach (NULL, from_tty); | |
c906108c SS |
316 | } |
317 | ||
318 | /* Set both the exec file and the symbol file, in one command. | |
319 | What a novelty. Why did GDB go through four major releases before this | |
320 | command was added? */ | |
321 | ||
322 | static void | |
fba45db2 | 323 | file_command (char *arg, int from_tty) |
c906108c SS |
324 | { |
325 | /* FIXME, if we lose on reading the symbol file, we should revert | |
326 | the exec file, but that's rough. */ | |
327 | exec_file_command (arg, from_tty); | |
328 | symbol_file_command (arg, from_tty); | |
9a4105ab AC |
329 | if (deprecated_file_changed_hook) |
330 | deprecated_file_changed_hook (arg); | |
c906108c | 331 | } |
c906108c | 332 | \f |
c5aa993b | 333 | |
c906108c SS |
334 | /* Locate all mappable sections of a BFD file. |
335 | table_pp_char is a char * to get it through bfd_map_over_sections; | |
336 | we cast it back to its proper type. */ | |
337 | ||
338 | static void | |
7be0c536 AC |
339 | add_to_section_table (bfd *abfd, struct bfd_section *asect, |
340 | void *table_pp_char) | |
c906108c | 341 | { |
c5aa993b | 342 | struct section_table **table_pp = (struct section_table **) table_pp_char; |
c906108c SS |
343 | flagword aflag; |
344 | ||
345 | aflag = bfd_get_section_flags (abfd, asect); | |
346 | if (!(aflag & SEC_ALLOC)) | |
347 | return; | |
348 | if (0 == bfd_section_size (abfd, asect)) | |
349 | return; | |
350 | (*table_pp)->bfd = abfd; | |
351 | (*table_pp)->the_bfd_section = asect; | |
352 | (*table_pp)->addr = bfd_section_vma (abfd, asect); | |
353 | (*table_pp)->endaddr = (*table_pp)->addr + bfd_section_size (abfd, asect); | |
354 | (*table_pp)++; | |
355 | } | |
356 | ||
357 | /* Builds a section table, given args BFD, SECTABLE_PTR, SECEND_PTR. | |
358 | Returns 0 if OK, 1 on error. */ | |
359 | ||
360 | int | |
7be0c536 | 361 | build_section_table (struct bfd *some_bfd, struct section_table **start, |
fba45db2 | 362 | struct section_table **end) |
c906108c SS |
363 | { |
364 | unsigned count; | |
365 | ||
366 | count = bfd_count_sections (some_bfd); | |
367 | if (*start) | |
b8c9b27d | 368 | xfree (* start); |
c906108c SS |
369 | *start = (struct section_table *) xmalloc (count * sizeof (**start)); |
370 | *end = *start; | |
c5aa993b | 371 | bfd_map_over_sections (some_bfd, add_to_section_table, (char *) end); |
c906108c | 372 | if (*end > *start + count) |
e1e9e218 | 373 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c SS |
374 | /* We could realloc the table, but it probably loses for most files. */ |
375 | return 0; | |
376 | } | |
377 | \f | |
378 | static void | |
7be0c536 | 379 | bfdsec_to_vmap (struct bfd *abfd, struct bfd_section *sect, void *arg3) |
c906108c SS |
380 | { |
381 | struct vmap_and_bfd *vmap_bfd = (struct vmap_and_bfd *) arg3; | |
382 | struct vmap *vp; | |
383 | ||
384 | vp = vmap_bfd->pvmap; | |
385 | ||
386 | if ((bfd_get_section_flags (abfd, sect) & SEC_LOAD) == 0) | |
387 | return; | |
388 | ||
cb137aa5 | 389 | if (DEPRECATED_STREQ (bfd_section_name (abfd, sect), ".text")) |
c906108c SS |
390 | { |
391 | vp->tstart = bfd_section_vma (abfd, sect); | |
392 | vp->tend = vp->tstart + bfd_section_size (abfd, sect); | |
393 | vp->tvma = bfd_section_vma (abfd, sect); | |
394 | vp->toffs = sect->filepos; | |
395 | } | |
cb137aa5 | 396 | else if (DEPRECATED_STREQ (bfd_section_name (abfd, sect), ".data")) |
c906108c SS |
397 | { |
398 | vp->dstart = bfd_section_vma (abfd, sect); | |
399 | vp->dend = vp->dstart + bfd_section_size (abfd, sect); | |
400 | vp->dvma = bfd_section_vma (abfd, sect); | |
401 | } | |
402 | /* Silently ignore other types of sections. (FIXME?) */ | |
403 | } | |
404 | ||
405 | /* Make a vmap for ABFD which might be a member of the archive ARCH. | |
406 | Return the new vmap. */ | |
407 | ||
408 | struct vmap * | |
fba45db2 | 409 | map_vmap (bfd *abfd, bfd *arch) |
c906108c SS |
410 | { |
411 | struct vmap_and_bfd vmap_bfd; | |
412 | struct vmap *vp, **vpp; | |
413 | ||
414 | vp = (struct vmap *) xmalloc (sizeof (*vp)); | |
415 | memset ((char *) vp, '\0', sizeof (*vp)); | |
416 | vp->nxt = 0; | |
417 | vp->bfd = abfd; | |
418 | vp->name = bfd_get_filename (arch ? arch : abfd); | |
419 | vp->member = arch ? bfd_get_filename (abfd) : ""; | |
c5aa993b | 420 | |
c906108c SS |
421 | vmap_bfd.pbfd = arch; |
422 | vmap_bfd.pvmap = vp; | |
423 | bfd_map_over_sections (abfd, bfdsec_to_vmap, &vmap_bfd); | |
424 | ||
425 | /* Find the end of the list and append. */ | |
426 | for (vpp = &vmap; *vpp; vpp = &(*vpp)->nxt) | |
427 | ; | |
428 | *vpp = vp; | |
429 | ||
430 | return vp; | |
431 | } | |
432 | \f | |
433 | /* Read or write the exec file. | |
434 | ||
435 | Args are address within a BFD file, address within gdb address-space, | |
436 | length, and a flag indicating whether to read or write. | |
437 | ||
438 | Result is a length: | |
439 | ||
c5aa993b JM |
440 | 0: We cannot handle this address and length. |
441 | > 0: We have handled N bytes starting at this address. | |
442 | (If N == length, we did it all.) We might be able | |
443 | to handle more bytes beyond this length, but no | |
444 | promises. | |
445 | < 0: We cannot handle this address, but if somebody | |
446 | else handles (-N) bytes, we can start from there. | |
c906108c | 447 | |
c5aa993b JM |
448 | The same routine is used to handle both core and exec files; |
449 | we just tail-call it with more arguments to select between them. */ | |
c906108c SS |
450 | |
451 | int | |
fba45db2 | 452 | xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
29e57380 | 453 | struct mem_attrib *attrib, |
fba45db2 | 454 | struct target_ops *target) |
c906108c | 455 | { |
020cc13c | 456 | int res; |
c906108c SS |
457 | struct section_table *p; |
458 | CORE_ADDR nextsectaddr, memend; | |
88665544 | 459 | asection *section = NULL; |
c906108c SS |
460 | |
461 | if (len <= 0) | |
e1e9e218 | 462 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c SS |
463 | |
464 | if (overlay_debugging) | |
465 | { | |
466 | section = find_pc_overlay (memaddr); | |
467 | if (pc_in_unmapped_range (memaddr, section)) | |
468 | memaddr = overlay_mapped_address (memaddr, section); | |
469 | } | |
470 | ||
471 | memend = memaddr + len; | |
c906108c SS |
472 | nextsectaddr = memend; |
473 | ||
c906108c SS |
474 | for (p = target->to_sections; p < target->to_sections_end; p++) |
475 | { | |
476 | if (overlay_debugging && section && p->the_bfd_section && | |
477 | strcmp (section->name, p->the_bfd_section->name) != 0) | |
c5aa993b | 478 | continue; /* not the section we need */ |
c906108c | 479 | if (memaddr >= p->addr) |
3db26b01 JB |
480 | { |
481 | if (memend <= p->endaddr) | |
482 | { | |
483 | /* Entire transfer is within this section. */ | |
85302095 AC |
484 | if (write) |
485 | res = bfd_set_section_contents (p->bfd, p->the_bfd_section, | |
486 | myaddr, memaddr - p->addr, | |
487 | len); | |
488 | else | |
489 | res = bfd_get_section_contents (p->bfd, p->the_bfd_section, | |
490 | myaddr, memaddr - p->addr, | |
491 | len); | |
3db26b01 JB |
492 | return (res != 0) ? len : 0; |
493 | } | |
494 | else if (memaddr >= p->endaddr) | |
495 | { | |
496 | /* This section ends before the transfer starts. */ | |
497 | continue; | |
498 | } | |
499 | else | |
500 | { | |
501 | /* This section overlaps the transfer. Just do half. */ | |
502 | len = p->endaddr - memaddr; | |
85302095 AC |
503 | if (write) |
504 | res = bfd_set_section_contents (p->bfd, p->the_bfd_section, | |
505 | myaddr, memaddr - p->addr, | |
506 | len); | |
507 | else | |
508 | res = bfd_get_section_contents (p->bfd, p->the_bfd_section, | |
509 | myaddr, memaddr - p->addr, | |
510 | len); | |
3db26b01 JB |
511 | return (res != 0) ? len : 0; |
512 | } | |
513 | } | |
c906108c SS |
514 | else |
515 | nextsectaddr = min (nextsectaddr, p->addr); | |
516 | } | |
517 | ||
518 | if (nextsectaddr >= memend) | |
c5aa993b | 519 | return 0; /* We can't help */ |
c906108c | 520 | else |
c5aa993b | 521 | return -(nextsectaddr - memaddr); /* Next boundary where we can help */ |
c906108c | 522 | } |
c906108c | 523 | \f |
c5aa993b | 524 | |
c906108c | 525 | void |
fba45db2 | 526 | print_section_info (struct target_ops *t, bfd *abfd) |
c906108c SS |
527 | { |
528 | struct section_table *p; | |
bcf16802 | 529 | /* FIXME: "016l" is not wide enough when TARGET_ADDR_BIT > 64. */ |
2fc70c99 | 530 | char *fmt = TARGET_ADDR_BIT <= 32 ? "08l" : "016l"; |
c906108c | 531 | |
c5aa993b | 532 | printf_filtered ("\t`%s', ", bfd_get_filename (abfd)); |
c906108c | 533 | wrap_here (" "); |
c5aa993b | 534 | printf_filtered ("file type %s.\n", bfd_get_target (abfd)); |
c906108c SS |
535 | if (abfd == exec_bfd) |
536 | { | |
537 | printf_filtered ("\tEntry point: "); | |
538 | print_address_numeric (bfd_get_start_address (abfd), 1, gdb_stdout); | |
539 | printf_filtered ("\n"); | |
540 | } | |
541 | for (p = t->to_sections; p < t->to_sections_end; p++) | |
542 | { | |
2fc70c99 KB |
543 | printf_filtered ("\t%s", local_hex_string_custom (p->addr, fmt)); |
544 | printf_filtered (" - %s", local_hex_string_custom (p->endaddr, fmt)); | |
bcf16802 KB |
545 | |
546 | /* FIXME: A format of "08l" is not wide enough for file offsets | |
547 | larger than 4GB. OTOH, making it "016l" isn't desirable either | |
548 | since most output will then be much wider than necessary. It | |
549 | may make sense to test the size of the file and choose the | |
550 | format string accordingly. */ | |
c906108c SS |
551 | if (info_verbose) |
552 | printf_filtered (" @ %s", | |
2fc70c99 | 553 | local_hex_string_custom (p->the_bfd_section->filepos, "08l")); |
c906108c SS |
554 | printf_filtered (" is %s", bfd_section_name (p->bfd, p->the_bfd_section)); |
555 | if (p->bfd != abfd) | |
556 | { | |
557 | printf_filtered (" in %s", bfd_get_filename (p->bfd)); | |
558 | } | |
559 | printf_filtered ("\n"); | |
560 | } | |
561 | } | |
562 | ||
563 | static void | |
fba45db2 | 564 | exec_files_info (struct target_ops *t) |
c906108c SS |
565 | { |
566 | print_section_info (t, exec_bfd); | |
567 | ||
568 | if (vmap) | |
569 | { | |
570 | struct vmap *vp; | |
571 | ||
572 | printf_unfiltered ("\tMapping info for file `%s'.\n", vmap->name); | |
d4f3574e SS |
573 | printf_unfiltered ("\t %*s %*s %*s %*s %8.8s %s\n", |
574 | strlen_paddr (), "tstart", | |
575 | strlen_paddr (), "tend", | |
576 | strlen_paddr (), "dstart", | |
577 | strlen_paddr (), "dend", | |
578 | "section", | |
c5aa993b JM |
579 | "file(member)"); |
580 | ||
581 | for (vp = vmap; vp; vp = vp->nxt) | |
d4f3574e SS |
582 | printf_unfiltered ("\t0x%s 0x%s 0x%s 0x%s %s%s%s%s\n", |
583 | paddr (vp->tstart), | |
584 | paddr (vp->tend), | |
585 | paddr (vp->dstart), | |
586 | paddr (vp->dend), | |
587 | vp->name, | |
c5aa993b JM |
588 | *vp->member ? "(" : "", vp->member, |
589 | *vp->member ? ")" : ""); | |
c906108c SS |
590 | } |
591 | } | |
592 | ||
0f71a2f6 JM |
593 | /* msnyder 5/21/99: |
594 | exec_set_section_offsets sets the offsets of all the sections | |
595 | in the exec objfile. */ | |
596 | ||
597 | void | |
fba45db2 KB |
598 | exec_set_section_offsets (bfd_signed_vma text_off, bfd_signed_vma data_off, |
599 | bfd_signed_vma bss_off) | |
0f71a2f6 JM |
600 | { |
601 | struct section_table *sect; | |
c5aa993b JM |
602 | |
603 | for (sect = exec_ops.to_sections; | |
604 | sect < exec_ops.to_sections_end; | |
0f71a2f6 JM |
605 | sect++) |
606 | { | |
607 | flagword flags; | |
608 | ||
609 | flags = bfd_get_section_flags (exec_bfd, sect->the_bfd_section); | |
610 | ||
611 | if (flags & SEC_CODE) | |
612 | { | |
c5aa993b | 613 | sect->addr += text_off; |
0f71a2f6 JM |
614 | sect->endaddr += text_off; |
615 | } | |
616 | else if (flags & (SEC_DATA | SEC_LOAD)) | |
617 | { | |
c5aa993b | 618 | sect->addr += data_off; |
0f71a2f6 JM |
619 | sect->endaddr += data_off; |
620 | } | |
621 | else if (flags & SEC_ALLOC) | |
622 | { | |
c5aa993b | 623 | sect->addr += bss_off; |
0f71a2f6 JM |
624 | sect->endaddr += bss_off; |
625 | } | |
626 | } | |
627 | } | |
628 | ||
c906108c | 629 | static void |
fba45db2 | 630 | set_section_command (char *args, int from_tty) |
c906108c SS |
631 | { |
632 | struct section_table *p; | |
633 | char *secname; | |
634 | unsigned seclen; | |
635 | unsigned long secaddr; | |
636 | char secprint[100]; | |
637 | long offset; | |
638 | ||
639 | if (args == 0) | |
640 | error ("Must specify section name and its virtual address"); | |
641 | ||
642 | /* Parse out section name */ | |
c5aa993b | 643 | for (secname = args; !isspace (*args); args++); |
c906108c SS |
644 | seclen = args - secname; |
645 | ||
646 | /* Parse out new virtual address */ | |
647 | secaddr = parse_and_eval_address (args); | |
648 | ||
c5aa993b JM |
649 | for (p = exec_ops.to_sections; p < exec_ops.to_sections_end; p++) |
650 | { | |
651 | if (!strncmp (secname, bfd_section_name (exec_bfd, p->the_bfd_section), seclen) | |
652 | && bfd_section_name (exec_bfd, p->the_bfd_section)[seclen] == '\0') | |
653 | { | |
654 | offset = secaddr - p->addr; | |
655 | p->addr += offset; | |
656 | p->endaddr += offset; | |
657 | if (from_tty) | |
658 | exec_files_info (&exec_ops); | |
659 | return; | |
660 | } | |
c906108c | 661 | } |
c906108c SS |
662 | if (seclen >= sizeof (secprint)) |
663 | seclen = sizeof (secprint) - 1; | |
664 | strncpy (secprint, secname, seclen); | |
665 | secprint[seclen] = '\0'; | |
666 | error ("Section %s not found", secprint); | |
667 | } | |
668 | ||
669 | /* If mourn is being called in all the right places, this could be say | |
670 | `gdb internal error' (since generic_mourn calls | |
671 | breakpoint_init_inferior). */ | |
672 | ||
673 | static int | |
fba45db2 | 674 | ignore (CORE_ADDR addr, char *contents) |
c906108c SS |
675 | { |
676 | return 0; | |
677 | } | |
678 | ||
be4d1333 MS |
679 | /* Find mapped memory. */ |
680 | ||
681 | extern void | |
682 | exec_set_find_memory_regions (int (*func) (int (*) (CORE_ADDR, | |
683 | unsigned long, | |
684 | int, int, int, | |
685 | void *), | |
686 | void *)) | |
687 | { | |
688 | exec_ops.to_find_memory_regions = func; | |
689 | } | |
690 | ||
691 | static char *exec_make_note_section (bfd *, int *); | |
692 | ||
c906108c SS |
693 | /* Fill in the exec file target vector. Very few entries need to be |
694 | defined. */ | |
695 | ||
be4d1333 | 696 | static void |
fba45db2 | 697 | init_exec_ops (void) |
c906108c SS |
698 | { |
699 | exec_ops.to_shortname = "exec"; | |
700 | exec_ops.to_longname = "Local exec file"; | |
701 | exec_ops.to_doc = "Use an executable file as a target.\n\ | |
702 | Specify the filename of the executable file."; | |
1adeb98a | 703 | exec_ops.to_open = exec_open; |
c906108c SS |
704 | exec_ops.to_close = exec_close; |
705 | exec_ops.to_attach = find_default_attach; | |
c906108c SS |
706 | exec_ops.to_xfer_memory = xfer_memory; |
707 | exec_ops.to_files_info = exec_files_info; | |
708 | exec_ops.to_insert_breakpoint = ignore; | |
709 | exec_ops.to_remove_breakpoint = ignore; | |
710 | exec_ops.to_create_inferior = find_default_create_inferior; | |
c906108c SS |
711 | exec_ops.to_stratum = file_stratum; |
712 | exec_ops.to_has_memory = 1; | |
be4d1333 | 713 | exec_ops.to_make_corefile_notes = exec_make_note_section; |
c5aa993b | 714 | exec_ops.to_magic = OPS_MAGIC; |
c906108c SS |
715 | } |
716 | ||
717 | void | |
fba45db2 | 718 | _initialize_exec (void) |
c906108c SS |
719 | { |
720 | struct cmd_list_element *c; | |
721 | ||
722 | init_exec_ops (); | |
723 | ||
724 | if (!dbx_commands) | |
725 | { | |
726 | c = add_cmd ("file", class_files, file_command, | |
727 | "Use FILE as program to be debugged.\n\ | |
728 | It is read for its symbols, for getting the contents of pure memory,\n\ | |
729 | and it is the program executed when you use the `run' command.\n\ | |
730 | If FILE cannot be found as specified, your execution directory path\n\ | |
731 | ($PATH) is searched for a command of that name.\n\ | |
732 | No arg means to have no executable file and no symbols.", &cmdlist); | |
5ba2abeb | 733 | set_cmd_completer (c, filename_completer); |
c906108c SS |
734 | } |
735 | ||
736 | c = add_cmd ("exec-file", class_files, exec_file_command, | |
c5aa993b | 737 | "Use FILE as program for getting contents of pure memory.\n\ |
c906108c SS |
738 | If FILE cannot be found as specified, your execution directory path\n\ |
739 | is searched for a command of that name.\n\ | |
740 | No arg means have no executable file.", &cmdlist); | |
5ba2abeb | 741 | set_cmd_completer (c, filename_completer); |
c906108c SS |
742 | |
743 | add_com ("section", class_files, set_section_command, | |
c5aa993b | 744 | "Change the base address of section SECTION of the exec file to ADDR.\n\ |
c906108c SS |
745 | This can be used if the exec file does not contain section addresses,\n\ |
746 | (such as in the a.out format), or when the addresses specified in the\n\ | |
747 | file itself are wrong. Each section must be changed separately. The\n\ | |
748 | ``info files'' command lists all the sections and their addresses."); | |
749 | ||
cb1a6d5f | 750 | deprecated_add_show_from_set |
c5aa993b | 751 | (add_set_cmd ("write", class_support, var_boolean, (char *) &write_files, |
c906108c SS |
752 | "Set writing into executable and core files.", |
753 | &setlist), | |
754 | &showlist); | |
c5aa993b | 755 | |
c906108c SS |
756 | add_target (&exec_ops); |
757 | } | |
be4d1333 MS |
758 | |
759 | static char * | |
760 | exec_make_note_section (bfd *obfd, int *note_size) | |
761 | { | |
c564377f | 762 | error ("Can't create a corefile"); |
be4d1333 | 763 | } |