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> | |
38017ce8 | 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 | |
507f3c78 | 56 | void (*file_changed_hook) (char *); |
c906108c SS |
57 | |
58 | /* Prototypes for local functions */ | |
59 | ||
4efb68b1 | 60 | static void add_to_section_table (bfd *, sec_ptr, void *); |
c906108c | 61 | |
a14ed312 | 62 | static void exec_close (int); |
c906108c | 63 | |
a14ed312 | 64 | static void file_command (char *, int); |
c906108c | 65 | |
a14ed312 | 66 | static void set_section_command (char *, int); |
c906108c | 67 | |
a14ed312 | 68 | static void exec_files_info (struct target_ops *); |
c906108c | 69 | |
4efb68b1 | 70 | static void bfdsec_to_vmap (bfd *, sec_ptr, void *); |
c906108c | 71 | |
a14ed312 | 72 | static int ignore (CORE_ADDR, char *); |
c906108c | 73 | |
a14ed312 | 74 | static void init_exec_ops (void); |
c906108c | 75 | |
a14ed312 | 76 | void _initialize_exec (void); |
c906108c | 77 | |
c906108c SS |
78 | /* The target vector for executable files. */ |
79 | ||
80 | struct target_ops exec_ops; | |
81 | ||
82 | /* The Binary File Descriptor handle for the executable file. */ | |
83 | ||
84 | bfd *exec_bfd = NULL; | |
85 | ||
86 | /* Whether to open exec and core files read-only or read-write. */ | |
87 | ||
88 | int write_files = 0; | |
89 | ||
c906108c SS |
90 | struct vmap *vmap; |
91 | ||
1adeb98a FN |
92 | void |
93 | exec_open (char *args, int from_tty) | |
94 | { | |
95 | target_preopen (from_tty); | |
96 | exec_file_attach (args, from_tty); | |
97 | } | |
98 | ||
c906108c | 99 | static void |
fba45db2 | 100 | exec_close (int quitting) |
c906108c SS |
101 | { |
102 | int need_symtab_cleanup = 0; | |
103 | struct vmap *vp, *nxt; | |
c5aa993b JM |
104 | |
105 | for (nxt = vmap; nxt != NULL;) | |
c906108c SS |
106 | { |
107 | vp = nxt; | |
108 | nxt = vp->nxt; | |
109 | ||
110 | /* if there is an objfile associated with this bfd, | |
c5aa993b JM |
111 | free_objfile() will do proper cleanup of objfile *and* bfd. */ |
112 | ||
c906108c SS |
113 | if (vp->objfile) |
114 | { | |
115 | free_objfile (vp->objfile); | |
116 | need_symtab_cleanup = 1; | |
117 | } | |
118 | else if (vp->bfd != exec_bfd) | |
119 | /* FIXME-leak: We should be freeing vp->name too, I think. */ | |
120 | if (!bfd_close (vp->bfd)) | |
121 | warning ("cannot close \"%s\": %s", | |
122 | vp->name, bfd_errmsg (bfd_get_error ())); | |
123 | ||
124 | /* FIXME: This routine is #if 0'd in symfile.c. What should we | |
c5aa993b JM |
125 | be doing here? Should we just free everything in |
126 | vp->objfile->symtabs? Should free_objfile do that? | |
127 | FIXME-as-well: free_objfile already free'd vp->name, so it isn't | |
128 | valid here. */ | |
c906108c | 129 | free_named_symtabs (vp->name); |
b8c9b27d | 130 | xfree (vp); |
c906108c SS |
131 | } |
132 | ||
133 | vmap = NULL; | |
134 | ||
135 | if (exec_bfd) | |
136 | { | |
137 | char *name = bfd_get_filename (exec_bfd); | |
138 | ||
139 | if (!bfd_close (exec_bfd)) | |
140 | warning ("cannot close \"%s\": %s", | |
141 | name, bfd_errmsg (bfd_get_error ())); | |
b8c9b27d | 142 | xfree (name); |
c906108c SS |
143 | exec_bfd = NULL; |
144 | } | |
145 | ||
146 | if (exec_ops.to_sections) | |
147 | { | |
b8c9b27d | 148 | xfree (exec_ops.to_sections); |
c906108c SS |
149 | exec_ops.to_sections = NULL; |
150 | exec_ops.to_sections_end = NULL; | |
151 | } | |
152 | } | |
153 | ||
1adeb98a FN |
154 | void |
155 | exec_file_clear (int from_tty) | |
156 | { | |
157 | /* Remove exec file. */ | |
158 | unpush_target (&exec_ops); | |
159 | ||
160 | if (from_tty) | |
161 | printf_unfiltered ("No executable file now.\n"); | |
162 | } | |
163 | ||
c906108c SS |
164 | /* Process the first arg in ARGS as the new exec file. |
165 | ||
c5aa993b JM |
166 | This function is intended to be behave essentially the same |
167 | as exec_file_command, except that the latter will detect when | |
168 | a target is being debugged, and will ask the user whether it | |
169 | should be shut down first. (If the answer is "no", then the | |
170 | new file is ignored.) | |
c906108c | 171 | |
c5aa993b JM |
172 | This file is used by exec_file_command, to do the work of opening |
173 | and processing the exec file after any prompting has happened. | |
c906108c | 174 | |
c5aa993b JM |
175 | And, it is used by child_attach, when the attach command was |
176 | given a pid but not a exec pathname, and the attach command could | |
177 | figure out the pathname from the pid. (In this case, we shouldn't | |
178 | ask the user whether the current target should be shut down -- | |
1adeb98a FN |
179 | we're supplying the exec pathname late for good reason.) |
180 | ||
181 | ARGS is assumed to be the filename. */ | |
c906108c SS |
182 | |
183 | void | |
1adeb98a | 184 | exec_file_attach (char *filename, int from_tty) |
c906108c | 185 | { |
c906108c SS |
186 | /* Remove any previous exec file. */ |
187 | unpush_target (&exec_ops); | |
188 | ||
189 | /* Now open and digest the file the user requested, if any. */ | |
190 | ||
1adeb98a FN |
191 | if (!filename) |
192 | { | |
193 | if (from_tty) | |
194 | printf_unfiltered ("No executable file now.\n"); | |
195 | } | |
196 | else | |
c906108c SS |
197 | { |
198 | char *scratch_pathname; | |
199 | int scratch_chan; | |
c5aa993b | 200 | |
c5aa993b JM |
201 | scratch_chan = openp (getenv ("PATH"), 1, filename, |
202 | write_files ? O_RDWR | O_BINARY : O_RDONLY | O_BINARY, 0, | |
c906108c | 203 | &scratch_pathname); |
cfc3008e | 204 | #if defined(__GO32__) || defined(_WIN32) || defined(__CYGWIN__) |
c906108c | 205 | if (scratch_chan < 0) |
c5aa993b JM |
206 | { |
207 | char *exename = alloca (strlen (filename) + 5); | |
208 | strcat (strcpy (exename, filename), ".exe"); | |
209 | scratch_chan = openp (getenv ("PATH"), 1, exename, write_files ? | |
210 | O_RDWR | O_BINARY : O_RDONLY | O_BINARY, 0, &scratch_pathname); | |
211 | } | |
c906108c SS |
212 | #endif |
213 | if (scratch_chan < 0) | |
214 | perror_with_name (filename); | |
215 | exec_bfd = bfd_fdopenr (scratch_pathname, gnutarget, scratch_chan); | |
216 | ||
217 | if (!exec_bfd) | |
218 | error ("\"%s\": could not open as an executable file: %s", | |
219 | scratch_pathname, bfd_errmsg (bfd_get_error ())); | |
220 | ||
221 | /* At this point, scratch_pathname and exec_bfd->name both point to the | |
c5aa993b JM |
222 | same malloc'd string. However exec_close() will attempt to free it |
223 | via the exec_bfd->name pointer, so we need to make another copy and | |
224 | leave exec_bfd as the new owner of the original copy. */ | |
c2d11a7d | 225 | scratch_pathname = xstrdup (scratch_pathname); |
b8c9b27d | 226 | make_cleanup (xfree, scratch_pathname); |
c5aa993b | 227 | |
c906108c SS |
228 | if (!bfd_check_format (exec_bfd, bfd_object)) |
229 | { | |
230 | /* Make sure to close exec_bfd, or else "run" might try to use | |
231 | it. */ | |
232 | exec_close (0); | |
233 | error ("\"%s\": not in executable format: %s", | |
234 | scratch_pathname, bfd_errmsg (bfd_get_error ())); | |
235 | } | |
236 | ||
237 | /* FIXME - This should only be run for RS6000, but the ifdef is a poor | |
c5aa993b | 238 | way to accomplish. */ |
52d16ba8 | 239 | #ifdef DEPRECATED_IBM6000_TARGET |
c906108c SS |
240 | /* Setup initial vmap. */ |
241 | ||
242 | map_vmap (exec_bfd, 0); | |
243 | if (vmap == NULL) | |
244 | { | |
245 | /* Make sure to close exec_bfd, or else "run" might try to use | |
246 | it. */ | |
247 | exec_close (0); | |
248 | error ("\"%s\": can't find the file sections: %s", | |
249 | scratch_pathname, bfd_errmsg (bfd_get_error ())); | |
250 | } | |
52d16ba8 | 251 | #endif /* DEPRECATED_IBM6000_TARGET */ |
c906108c SS |
252 | |
253 | if (build_section_table (exec_bfd, &exec_ops.to_sections, | |
c5aa993b | 254 | &exec_ops.to_sections_end)) |
c906108c SS |
255 | { |
256 | /* Make sure to close exec_bfd, or else "run" might try to use | |
257 | it. */ | |
258 | exec_close (0); | |
c5aa993b | 259 | error ("\"%s\": can't find the file sections: %s", |
c906108c SS |
260 | scratch_pathname, bfd_errmsg (bfd_get_error ())); |
261 | } | |
262 | ||
b9fbf434 AC |
263 | #ifdef DEPRECATED_HPUX_TEXT_END |
264 | DEPRECATED_HPUX_TEXT_END (&exec_ops); | |
265 | #endif | |
c906108c SS |
266 | |
267 | validate_files (); | |
268 | ||
269 | set_gdbarch_from_file (exec_bfd); | |
270 | ||
271 | push_target (&exec_ops); | |
272 | ||
273 | /* Tell display code (if any) about the changed file name. */ | |
274 | if (exec_file_display_hook) | |
275 | (*exec_file_display_hook) (filename); | |
276 | } | |
c906108c SS |
277 | } |
278 | ||
279 | /* Process the first arg in ARGS as the new exec file. | |
280 | ||
c5aa993b JM |
281 | Note that we have to explicitly ignore additional args, since we can |
282 | be called from file_command(), which also calls symbol_file_command() | |
1adeb98a FN |
283 | which can take multiple args. |
284 | ||
285 | If ARGS is NULL, we just want to close the exec file. */ | |
c906108c | 286 | |
1adeb98a | 287 | static void |
fba45db2 | 288 | exec_file_command (char *args, int from_tty) |
c906108c | 289 | { |
1adeb98a FN |
290 | char **argv; |
291 | char *filename; | |
292 | ||
c906108c | 293 | target_preopen (from_tty); |
1adeb98a FN |
294 | |
295 | if (args) | |
296 | { | |
297 | /* Scan through the args and pick up the first non option arg | |
298 | as the filename. */ | |
299 | ||
300 | argv = buildargv (args); | |
301 | if (argv == NULL) | |
302 | nomem (0); | |
303 | ||
304 | make_cleanup_freeargv (argv); | |
305 | ||
306 | for (; (*argv != NULL) && (**argv == '-'); argv++) | |
307 | {; | |
308 | } | |
309 | if (*argv == NULL) | |
310 | error ("No executable file name was specified"); | |
311 | ||
312 | filename = tilde_expand (*argv); | |
313 | make_cleanup (xfree, filename); | |
314 | exec_file_attach (filename, from_tty); | |
315 | } | |
316 | else | |
317 | exec_file_attach (NULL, from_tty); | |
c906108c SS |
318 | } |
319 | ||
320 | /* Set both the exec file and the symbol file, in one command. | |
321 | What a novelty. Why did GDB go through four major releases before this | |
322 | command was added? */ | |
323 | ||
324 | static void | |
fba45db2 | 325 | file_command (char *arg, int from_tty) |
c906108c SS |
326 | { |
327 | /* FIXME, if we lose on reading the symbol file, we should revert | |
328 | the exec file, but that's rough. */ | |
329 | exec_file_command (arg, from_tty); | |
330 | symbol_file_command (arg, from_tty); | |
331 | if (file_changed_hook) | |
332 | file_changed_hook (arg); | |
333 | } | |
c906108c | 334 | \f |
c5aa993b | 335 | |
c906108c SS |
336 | /* Locate all mappable sections of a BFD file. |
337 | table_pp_char is a char * to get it through bfd_map_over_sections; | |
338 | we cast it back to its proper type. */ | |
339 | ||
340 | static void | |
4efb68b1 | 341 | add_to_section_table (bfd *abfd, sec_ptr asect, void *table_pp_char) |
c906108c | 342 | { |
c5aa993b | 343 | struct section_table **table_pp = (struct section_table **) table_pp_char; |
c906108c SS |
344 | flagword aflag; |
345 | ||
346 | aflag = bfd_get_section_flags (abfd, asect); | |
347 | if (!(aflag & SEC_ALLOC)) | |
348 | return; | |
349 | if (0 == bfd_section_size (abfd, asect)) | |
350 | return; | |
351 | (*table_pp)->bfd = abfd; | |
352 | (*table_pp)->the_bfd_section = asect; | |
353 | (*table_pp)->addr = bfd_section_vma (abfd, asect); | |
354 | (*table_pp)->endaddr = (*table_pp)->addr + bfd_section_size (abfd, asect); | |
355 | (*table_pp)++; | |
356 | } | |
357 | ||
358 | /* Builds a section table, given args BFD, SECTABLE_PTR, SECEND_PTR. | |
359 | Returns 0 if OK, 1 on error. */ | |
360 | ||
361 | int | |
fba45db2 KB |
362 | build_section_table (bfd *some_bfd, struct section_table **start, |
363 | struct section_table **end) | |
c906108c SS |
364 | { |
365 | unsigned count; | |
366 | ||
367 | count = bfd_count_sections (some_bfd); | |
368 | if (*start) | |
b8c9b27d | 369 | xfree (* start); |
c906108c SS |
370 | *start = (struct section_table *) xmalloc (count * sizeof (**start)); |
371 | *end = *start; | |
c5aa993b | 372 | bfd_map_over_sections (some_bfd, add_to_section_table, (char *) end); |
c906108c | 373 | if (*end > *start + count) |
e1e9e218 | 374 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c SS |
375 | /* We could realloc the table, but it probably loses for most files. */ |
376 | return 0; | |
377 | } | |
378 | \f | |
379 | static void | |
4efb68b1 | 380 | bfdsec_to_vmap (bfd *abfd, sec_ptr sect, void *arg3) |
c906108c SS |
381 | { |
382 | struct vmap_and_bfd *vmap_bfd = (struct vmap_and_bfd *) arg3; | |
383 | struct vmap *vp; | |
384 | ||
385 | vp = vmap_bfd->pvmap; | |
386 | ||
387 | if ((bfd_get_section_flags (abfd, sect) & SEC_LOAD) == 0) | |
388 | return; | |
389 | ||
390 | if (STREQ (bfd_section_name (abfd, sect), ".text")) | |
391 | { | |
392 | vp->tstart = bfd_section_vma (abfd, sect); | |
393 | vp->tend = vp->tstart + bfd_section_size (abfd, sect); | |
394 | vp->tvma = bfd_section_vma (abfd, sect); | |
395 | vp->toffs = sect->filepos; | |
396 | } | |
397 | else if (STREQ (bfd_section_name (abfd, sect), ".data")) | |
398 | { | |
399 | vp->dstart = bfd_section_vma (abfd, sect); | |
400 | vp->dend = vp->dstart + bfd_section_size (abfd, sect); | |
401 | vp->dvma = bfd_section_vma (abfd, sect); | |
402 | } | |
403 | /* Silently ignore other types of sections. (FIXME?) */ | |
404 | } | |
405 | ||
406 | /* Make a vmap for ABFD which might be a member of the archive ARCH. | |
407 | Return the new vmap. */ | |
408 | ||
409 | struct vmap * | |
fba45db2 | 410 | map_vmap (bfd *abfd, bfd *arch) |
c906108c SS |
411 | { |
412 | struct vmap_and_bfd vmap_bfd; | |
413 | struct vmap *vp, **vpp; | |
414 | ||
415 | vp = (struct vmap *) xmalloc (sizeof (*vp)); | |
416 | memset ((char *) vp, '\0', sizeof (*vp)); | |
417 | vp->nxt = 0; | |
418 | vp->bfd = abfd; | |
419 | vp->name = bfd_get_filename (arch ? arch : abfd); | |
420 | vp->member = arch ? bfd_get_filename (abfd) : ""; | |
c5aa993b | 421 | |
c906108c SS |
422 | vmap_bfd.pbfd = arch; |
423 | vmap_bfd.pvmap = vp; | |
424 | bfd_map_over_sections (abfd, bfdsec_to_vmap, &vmap_bfd); | |
425 | ||
426 | /* Find the end of the list and append. */ | |
427 | for (vpp = &vmap; *vpp; vpp = &(*vpp)->nxt) | |
428 | ; | |
429 | *vpp = vp; | |
430 | ||
431 | return vp; | |
432 | } | |
433 | \f | |
434 | /* Read or write the exec file. | |
435 | ||
436 | Args are address within a BFD file, address within gdb address-space, | |
437 | length, and a flag indicating whether to read or write. | |
438 | ||
439 | Result is a length: | |
440 | ||
c5aa993b JM |
441 | 0: We cannot handle this address and length. |
442 | > 0: We have handled N bytes starting at this address. | |
443 | (If N == length, we did it all.) We might be able | |
444 | to handle more bytes beyond this length, but no | |
445 | promises. | |
446 | < 0: We cannot handle this address, but if somebody | |
447 | else handles (-N) bytes, we can start from there. | |
c906108c | 448 | |
c5aa993b JM |
449 | The same routine is used to handle both core and exec files; |
450 | we just tail-call it with more arguments to select between them. */ | |
c906108c SS |
451 | |
452 | int | |
fba45db2 | 453 | xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
29e57380 | 454 | struct mem_attrib *attrib, |
fba45db2 | 455 | struct target_ops *target) |
c906108c | 456 | { |
020cc13c | 457 | int res; |
c906108c SS |
458 | struct section_table *p; |
459 | CORE_ADDR nextsectaddr, memend; | |
4efb68b1 | 460 | int (*xfer_fn) (bfd *, sec_ptr, void *, file_ptr, bfd_size_type); |
88665544 | 461 | asection *section = NULL; |
c906108c SS |
462 | |
463 | if (len <= 0) | |
e1e9e218 | 464 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c SS |
465 | |
466 | if (overlay_debugging) | |
467 | { | |
468 | section = find_pc_overlay (memaddr); | |
469 | if (pc_in_unmapped_range (memaddr, section)) | |
470 | memaddr = overlay_mapped_address (memaddr, section); | |
471 | } | |
472 | ||
473 | memend = memaddr + len; | |
474 | xfer_fn = write ? bfd_set_section_contents : bfd_get_section_contents; | |
475 | nextsectaddr = memend; | |
476 | ||
c906108c SS |
477 | for (p = target->to_sections; p < target->to_sections_end; p++) |
478 | { | |
479 | if (overlay_debugging && section && p->the_bfd_section && | |
480 | strcmp (section->name, p->the_bfd_section->name) != 0) | |
c5aa993b | 481 | continue; /* not the section we need */ |
c906108c | 482 | if (memaddr >= p->addr) |
3db26b01 JB |
483 | { |
484 | if (memend <= p->endaddr) | |
485 | { | |
486 | /* Entire transfer is within this section. */ | |
487 | res = xfer_fn (p->bfd, p->the_bfd_section, myaddr, | |
488 | memaddr - p->addr, len); | |
489 | return (res != 0) ? len : 0; | |
490 | } | |
491 | else if (memaddr >= p->endaddr) | |
492 | { | |
493 | /* This section ends before the transfer starts. */ | |
494 | continue; | |
495 | } | |
496 | else | |
497 | { | |
498 | /* This section overlaps the transfer. Just do half. */ | |
499 | len = p->endaddr - memaddr; | |
500 | res = xfer_fn (p->bfd, p->the_bfd_section, myaddr, | |
501 | memaddr - p->addr, len); | |
502 | return (res != 0) ? len : 0; | |
503 | } | |
504 | } | |
c906108c SS |
505 | else |
506 | nextsectaddr = min (nextsectaddr, p->addr); | |
507 | } | |
508 | ||
509 | if (nextsectaddr >= memend) | |
c5aa993b | 510 | return 0; /* We can't help */ |
c906108c | 511 | else |
c5aa993b | 512 | return -(nextsectaddr - memaddr); /* Next boundary where we can help */ |
c906108c | 513 | } |
c906108c | 514 | \f |
c5aa993b | 515 | |
c906108c | 516 | void |
fba45db2 | 517 | print_section_info (struct target_ops *t, bfd *abfd) |
c906108c SS |
518 | { |
519 | struct section_table *p; | |
bcf16802 | 520 | /* FIXME: "016l" is not wide enough when TARGET_ADDR_BIT > 64. */ |
2fc70c99 | 521 | char *fmt = TARGET_ADDR_BIT <= 32 ? "08l" : "016l"; |
c906108c | 522 | |
c5aa993b | 523 | printf_filtered ("\t`%s', ", bfd_get_filename (abfd)); |
c906108c | 524 | wrap_here (" "); |
c5aa993b | 525 | printf_filtered ("file type %s.\n", bfd_get_target (abfd)); |
c906108c SS |
526 | if (abfd == exec_bfd) |
527 | { | |
528 | printf_filtered ("\tEntry point: "); | |
529 | print_address_numeric (bfd_get_start_address (abfd), 1, gdb_stdout); | |
530 | printf_filtered ("\n"); | |
531 | } | |
532 | for (p = t->to_sections; p < t->to_sections_end; p++) | |
533 | { | |
2fc70c99 KB |
534 | printf_filtered ("\t%s", local_hex_string_custom (p->addr, fmt)); |
535 | printf_filtered (" - %s", local_hex_string_custom (p->endaddr, fmt)); | |
bcf16802 KB |
536 | |
537 | /* FIXME: A format of "08l" is not wide enough for file offsets | |
538 | larger than 4GB. OTOH, making it "016l" isn't desirable either | |
539 | since most output will then be much wider than necessary. It | |
540 | may make sense to test the size of the file and choose the | |
541 | format string accordingly. */ | |
c906108c SS |
542 | if (info_verbose) |
543 | printf_filtered (" @ %s", | |
2fc70c99 | 544 | local_hex_string_custom (p->the_bfd_section->filepos, "08l")); |
c906108c SS |
545 | printf_filtered (" is %s", bfd_section_name (p->bfd, p->the_bfd_section)); |
546 | if (p->bfd != abfd) | |
547 | { | |
548 | printf_filtered (" in %s", bfd_get_filename (p->bfd)); | |
549 | } | |
550 | printf_filtered ("\n"); | |
551 | } | |
552 | } | |
553 | ||
554 | static void | |
fba45db2 | 555 | exec_files_info (struct target_ops *t) |
c906108c SS |
556 | { |
557 | print_section_info (t, exec_bfd); | |
558 | ||
559 | if (vmap) | |
560 | { | |
561 | struct vmap *vp; | |
562 | ||
563 | printf_unfiltered ("\tMapping info for file `%s'.\n", vmap->name); | |
d4f3574e SS |
564 | printf_unfiltered ("\t %*s %*s %*s %*s %8.8s %s\n", |
565 | strlen_paddr (), "tstart", | |
566 | strlen_paddr (), "tend", | |
567 | strlen_paddr (), "dstart", | |
568 | strlen_paddr (), "dend", | |
569 | "section", | |
c5aa993b JM |
570 | "file(member)"); |
571 | ||
572 | for (vp = vmap; vp; vp = vp->nxt) | |
d4f3574e SS |
573 | printf_unfiltered ("\t0x%s 0x%s 0x%s 0x%s %s%s%s%s\n", |
574 | paddr (vp->tstart), | |
575 | paddr (vp->tend), | |
576 | paddr (vp->dstart), | |
577 | paddr (vp->dend), | |
578 | vp->name, | |
c5aa993b JM |
579 | *vp->member ? "(" : "", vp->member, |
580 | *vp->member ? ")" : ""); | |
c906108c SS |
581 | } |
582 | } | |
583 | ||
0f71a2f6 JM |
584 | /* msnyder 5/21/99: |
585 | exec_set_section_offsets sets the offsets of all the sections | |
586 | in the exec objfile. */ | |
587 | ||
588 | void | |
fba45db2 KB |
589 | exec_set_section_offsets (bfd_signed_vma text_off, bfd_signed_vma data_off, |
590 | bfd_signed_vma bss_off) | |
0f71a2f6 JM |
591 | { |
592 | struct section_table *sect; | |
c5aa993b JM |
593 | |
594 | for (sect = exec_ops.to_sections; | |
595 | sect < exec_ops.to_sections_end; | |
0f71a2f6 JM |
596 | sect++) |
597 | { | |
598 | flagword flags; | |
599 | ||
600 | flags = bfd_get_section_flags (exec_bfd, sect->the_bfd_section); | |
601 | ||
602 | if (flags & SEC_CODE) | |
603 | { | |
c5aa993b | 604 | sect->addr += text_off; |
0f71a2f6 JM |
605 | sect->endaddr += text_off; |
606 | } | |
607 | else if (flags & (SEC_DATA | SEC_LOAD)) | |
608 | { | |
c5aa993b | 609 | sect->addr += data_off; |
0f71a2f6 JM |
610 | sect->endaddr += data_off; |
611 | } | |
612 | else if (flags & SEC_ALLOC) | |
613 | { | |
c5aa993b | 614 | sect->addr += bss_off; |
0f71a2f6 JM |
615 | sect->endaddr += bss_off; |
616 | } | |
617 | } | |
618 | } | |
619 | ||
c906108c | 620 | static void |
fba45db2 | 621 | set_section_command (char *args, int from_tty) |
c906108c SS |
622 | { |
623 | struct section_table *p; | |
624 | char *secname; | |
625 | unsigned seclen; | |
626 | unsigned long secaddr; | |
627 | char secprint[100]; | |
628 | long offset; | |
629 | ||
630 | if (args == 0) | |
631 | error ("Must specify section name and its virtual address"); | |
632 | ||
633 | /* Parse out section name */ | |
c5aa993b | 634 | for (secname = args; !isspace (*args); args++); |
c906108c SS |
635 | seclen = args - secname; |
636 | ||
637 | /* Parse out new virtual address */ | |
638 | secaddr = parse_and_eval_address (args); | |
639 | ||
c5aa993b JM |
640 | for (p = exec_ops.to_sections; p < exec_ops.to_sections_end; p++) |
641 | { | |
642 | if (!strncmp (secname, bfd_section_name (exec_bfd, p->the_bfd_section), seclen) | |
643 | && bfd_section_name (exec_bfd, p->the_bfd_section)[seclen] == '\0') | |
644 | { | |
645 | offset = secaddr - p->addr; | |
646 | p->addr += offset; | |
647 | p->endaddr += offset; | |
648 | if (from_tty) | |
649 | exec_files_info (&exec_ops); | |
650 | return; | |
651 | } | |
c906108c | 652 | } |
c906108c SS |
653 | if (seclen >= sizeof (secprint)) |
654 | seclen = sizeof (secprint) - 1; | |
655 | strncpy (secprint, secname, seclen); | |
656 | secprint[seclen] = '\0'; | |
657 | error ("Section %s not found", secprint); | |
658 | } | |
659 | ||
660 | /* If mourn is being called in all the right places, this could be say | |
661 | `gdb internal error' (since generic_mourn calls | |
662 | breakpoint_init_inferior). */ | |
663 | ||
664 | static int | |
fba45db2 | 665 | ignore (CORE_ADDR addr, char *contents) |
c906108c SS |
666 | { |
667 | return 0; | |
668 | } | |
669 | ||
be4d1333 MS |
670 | /* Find mapped memory. */ |
671 | ||
672 | extern void | |
673 | exec_set_find_memory_regions (int (*func) (int (*) (CORE_ADDR, | |
674 | unsigned long, | |
675 | int, int, int, | |
676 | void *), | |
677 | void *)) | |
678 | { | |
679 | exec_ops.to_find_memory_regions = func; | |
680 | } | |
681 | ||
682 | static char *exec_make_note_section (bfd *, int *); | |
683 | ||
c906108c SS |
684 | /* Fill in the exec file target vector. Very few entries need to be |
685 | defined. */ | |
686 | ||
be4d1333 | 687 | static void |
fba45db2 | 688 | init_exec_ops (void) |
c906108c SS |
689 | { |
690 | exec_ops.to_shortname = "exec"; | |
691 | exec_ops.to_longname = "Local exec file"; | |
692 | exec_ops.to_doc = "Use an executable file as a target.\n\ | |
693 | Specify the filename of the executable file."; | |
1adeb98a | 694 | exec_ops.to_open = exec_open; |
c906108c SS |
695 | exec_ops.to_close = exec_close; |
696 | exec_ops.to_attach = find_default_attach; | |
c906108c SS |
697 | exec_ops.to_xfer_memory = xfer_memory; |
698 | exec_ops.to_files_info = exec_files_info; | |
699 | exec_ops.to_insert_breakpoint = ignore; | |
700 | exec_ops.to_remove_breakpoint = ignore; | |
701 | exec_ops.to_create_inferior = find_default_create_inferior; | |
c906108c SS |
702 | exec_ops.to_stratum = file_stratum; |
703 | exec_ops.to_has_memory = 1; | |
be4d1333 | 704 | exec_ops.to_make_corefile_notes = exec_make_note_section; |
c5aa993b | 705 | exec_ops.to_magic = OPS_MAGIC; |
c906108c SS |
706 | } |
707 | ||
708 | void | |
fba45db2 | 709 | _initialize_exec (void) |
c906108c SS |
710 | { |
711 | struct cmd_list_element *c; | |
712 | ||
713 | init_exec_ops (); | |
714 | ||
715 | if (!dbx_commands) | |
716 | { | |
717 | c = add_cmd ("file", class_files, file_command, | |
718 | "Use FILE as program to be debugged.\n\ | |
719 | It is read for its symbols, for getting the contents of pure memory,\n\ | |
720 | and it is the program executed when you use the `run' command.\n\ | |
721 | If FILE cannot be found as specified, your execution directory path\n\ | |
722 | ($PATH) is searched for a command of that name.\n\ | |
723 | No arg means to have no executable file and no symbols.", &cmdlist); | |
5ba2abeb | 724 | set_cmd_completer (c, filename_completer); |
c906108c SS |
725 | } |
726 | ||
727 | c = add_cmd ("exec-file", class_files, exec_file_command, | |
c5aa993b | 728 | "Use FILE as program for getting contents of pure memory.\n\ |
c906108c SS |
729 | If FILE cannot be found as specified, your execution directory path\n\ |
730 | is searched for a command of that name.\n\ | |
731 | No arg means have no executable file.", &cmdlist); | |
5ba2abeb | 732 | set_cmd_completer (c, filename_completer); |
c906108c SS |
733 | |
734 | add_com ("section", class_files, set_section_command, | |
c5aa993b | 735 | "Change the base address of section SECTION of the exec file to ADDR.\n\ |
c906108c SS |
736 | This can be used if the exec file does not contain section addresses,\n\ |
737 | (such as in the a.out format), or when the addresses specified in the\n\ | |
738 | file itself are wrong. Each section must be changed separately. The\n\ | |
739 | ``info files'' command lists all the sections and their addresses."); | |
740 | ||
741 | add_show_from_set | |
c5aa993b | 742 | (add_set_cmd ("write", class_support, var_boolean, (char *) &write_files, |
c906108c SS |
743 | "Set writing into executable and core files.", |
744 | &setlist), | |
745 | &showlist); | |
c5aa993b | 746 | |
c906108c SS |
747 | add_target (&exec_ops); |
748 | } | |
be4d1333 MS |
749 | |
750 | static char * | |
751 | exec_make_note_section (bfd *obfd, int *note_size) | |
752 | { | |
c564377f | 753 | error ("Can't create a corefile"); |
be4d1333 | 754 | } |