Commit | Line | Data |
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bd5635a1 | 1 | /* Work with executable files, for GDB. |
b83ed019 | 2 | Copyright 1988, 1989, 1991, 1992, 1993, 1994 Free Software Foundation, Inc. |
bd5635a1 RP |
3 | |
4 | This file is part of GDB. | |
5 | ||
bdbd5f50 | 6 | This program is free software; you can redistribute it and/or modify |
bd5635a1 | 7 | it under the terms of the GNU General Public License as published by |
bdbd5f50 JG |
8 | the Free Software Foundation; either version 2 of the License, or |
9 | (at your option) any later version. | |
bd5635a1 | 10 | |
bdbd5f50 | 11 | This program is distributed in the hope that it will be useful, |
bd5635a1 RP |
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 | |
bdbd5f50 | 17 | along with this program; if not, write to the Free Software |
3f17fed8 | 18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
bd5635a1 | 19 | |
bd5635a1 | 20 | #include "defs.h" |
bd5635a1 RP |
21 | #include "frame.h" |
22 | #include "inferior.h" | |
23 | #include "target.h" | |
bdbd5f50 | 24 | #include "gdbcmd.h" |
b02fd8ca | 25 | #include "language.h" |
806f810b SS |
26 | #include "symfile.h" |
27 | #include "objfiles.h" | |
bd5635a1 RP |
28 | |
29 | #ifdef USG | |
30 | #include <sys/types.h> | |
31 | #endif | |
32 | ||
33 | #include <sys/param.h> | |
34 | #include <fcntl.h> | |
2b576293 | 35 | #include "gdb_string.h" |
bd5635a1 RP |
36 | |
37 | #include "gdbcore.h" | |
38 | ||
f2ebc25f | 39 | #include <ctype.h> |
2b576293 | 40 | #include "gdb_stat.h" |
a8e033f2 SG |
41 | #ifndef O_BINARY |
42 | #define O_BINARY 0 | |
43 | #endif | |
bd5635a1 | 44 | |
806f810b SS |
45 | #include "xcoffsolib.h" |
46 | ||
47 | struct vmap *map_vmap PARAMS ((bfd *, bfd *)); | |
48 | ||
be772100 JG |
49 | /* Prototypes for local functions */ |
50 | ||
806f810b | 51 | static void add_to_section_table PARAMS ((bfd *, sec_ptr, PTR)); |
be772100 | 52 | |
806f810b | 53 | static void exec_close PARAMS ((int)); |
be772100 | 54 | |
806f810b | 55 | static void file_command PARAMS ((char *, int)); |
be772100 | 56 | |
806f810b | 57 | static void set_section_command PARAMS ((char *, int)); |
be772100 | 58 | |
806f810b | 59 | static void exec_files_info PARAMS ((struct target_ops *)); |
be772100 JG |
60 | |
61 | extern int info_verbose; | |
bd5635a1 RP |
62 | |
63 | /* The Binary File Descriptor handle for the executable file. */ | |
64 | ||
65 | bfd *exec_bfd = NULL; | |
66 | ||
bdbd5f50 | 67 | /* Whether to open exec and core files read-only or read-write. */ |
bd5635a1 | 68 | |
bdbd5f50 | 69 | int write_files = 0; |
bd5635a1 | 70 | |
7730bd5a JG |
71 | /* Text start and end addresses (KLUDGE) if needed */ |
72 | ||
dad0e12d | 73 | #ifdef NEED_TEXT_START_END |
7730bd5a JG |
74 | CORE_ADDR text_start = 0; |
75 | CORE_ADDR text_end = 0; | |
76 | #endif | |
77 | ||
806f810b SS |
78 | struct vmap *vmap; |
79 | ||
bd5635a1 RP |
80 | /* Forward decl */ |
81 | ||
82 | extern struct target_ops exec_ops; | |
83 | ||
bdbd5f50 | 84 | /* ARGSUSED */ |
be772100 | 85 | static void |
bd5635a1 RP |
86 | exec_close (quitting) |
87 | int quitting; | |
88 | { | |
806f810b SS |
89 | int need_symtab_cleanup = 0; |
90 | struct vmap *vp, *nxt; | |
91 | ||
92 | for (nxt = vmap; nxt != NULL; ) | |
93 | { | |
94 | vp = nxt; | |
95 | nxt = vp->nxt; | |
96 | ||
97 | /* if there is an objfile associated with this bfd, | |
98 | free_objfile() will do proper cleanup of objfile *and* bfd. */ | |
99 | ||
100 | if (vp->objfile) | |
101 | { | |
102 | free_objfile (vp->objfile); | |
103 | need_symtab_cleanup = 1; | |
104 | } | |
105 | else if (vp->bfd != exec_bfd) | |
e7b5942b JK |
106 | /* FIXME-leak: We should be freeing vp->name too, I think. */ |
107 | if (!bfd_close (vp->bfd)) | |
108 | warning ("cannot close \"%s\": %s", | |
109 | vp->name, bfd_errmsg (bfd_get_error ())); | |
806f810b SS |
110 | |
111 | /* FIXME: This routine is #if 0'd in symfile.c. What should we | |
112 | be doing here? Should we just free everything in | |
e7b5942b JK |
113 | vp->objfile->symtabs? Should free_objfile do that? |
114 | FIXME-as-well: free_objfile already free'd vp->name, so it isn't | |
115 | valid here. */ | |
806f810b SS |
116 | free_named_symtabs (vp->name); |
117 | free (vp); | |
118 | } | |
e7b5942b | 119 | |
806f810b SS |
120 | vmap = NULL; |
121 | ||
122 | if (exec_bfd) | |
123 | { | |
124 | char *name = bfd_get_filename (exec_bfd); | |
125 | ||
e7b5942b JK |
126 | if (!bfd_close (exec_bfd)) |
127 | warning ("cannot close \"%s\": %s", | |
128 | name, bfd_errmsg (bfd_get_error ())); | |
806f810b SS |
129 | free (name); |
130 | exec_bfd = NULL; | |
131 | } | |
132 | ||
133 | if (exec_ops.to_sections) | |
134 | { | |
135 | free ((PTR)exec_ops.to_sections); | |
136 | exec_ops.to_sections = NULL; | |
137 | exec_ops.to_sections_end = NULL; | |
138 | } | |
bd5635a1 RP |
139 | } |
140 | ||
be772100 JG |
141 | /* Process the first arg in ARGS as the new exec file. |
142 | ||
143 | Note that we have to explicitly ignore additional args, since we can | |
144 | be called from file_command(), which also calls symbol_file_command() | |
145 | which can take multiple args. */ | |
146 | ||
bd5635a1 | 147 | void |
be772100 JG |
148 | exec_file_command (args, from_tty) |
149 | char *args; | |
bd5635a1 RP |
150 | int from_tty; |
151 | { | |
be772100 JG |
152 | char **argv; |
153 | char *filename; | |
154 | ||
f2fc6e7a | 155 | target_preopen (from_tty); |
bd5635a1 RP |
156 | |
157 | /* Remove any previous exec file. */ | |
158 | unpush_target (&exec_ops); | |
159 | ||
160 | /* Now open and digest the file the user requested, if any. */ | |
161 | ||
be772100 | 162 | if (args) |
bd5635a1 RP |
163 | { |
164 | char *scratch_pathname; | |
165 | int scratch_chan; | |
166 | ||
be772100 | 167 | /* Scan through the args and pick up the first non option arg |
806f810b SS |
168 | as the filename. */ |
169 | ||
170 | argv = buildargv (args); | |
171 | if (argv == NULL) | |
172 | nomem (0); | |
be772100 | 173 | |
be772100 JG |
174 | make_cleanup (freeargv, (char *) argv); |
175 | ||
176 | for (; (*argv != NULL) && (**argv == '-'); argv++) {;} | |
177 | if (*argv == NULL) | |
806f810b | 178 | error ("no exec file name was specified"); |
be772100 JG |
179 | |
180 | filename = tilde_expand (*argv); | |
bd5635a1 RP |
181 | make_cleanup (free, filename); |
182 | ||
bdbd5f50 | 183 | scratch_chan = openp (getenv ("PATH"), 1, filename, |
a8e033f2 | 184 | write_files? O_RDWR|O_BINARY: O_RDONLY|O_BINARY, 0, |
bd5635a1 | 185 | &scratch_pathname); |
3f17fed8 GN |
186 | #if defined(__GO32__) || defined(__WIN32__) |
187 | if (scratch_chan < 0) | |
188 | { | |
189 | char *exename = alloca (strlen (filename) + 5); | |
190 | strcat (strcpy (exename, filename), ".exe"); | |
191 | scratch_chan = openp (getenv ("PATH"), 1, exename, write_files ? | |
192 | O_RDWR|O_BINARY : O_RDONLY|O_BINARY, 0, &scratch_pathname); | |
193 | } | |
194 | #endif | |
bd5635a1 RP |
195 | if (scratch_chan < 0) |
196 | perror_with_name (filename); | |
b1eaba9a | 197 | exec_bfd = bfd_fdopenr (scratch_pathname, gnutarget, scratch_chan); |
3f17fed8 | 198 | |
bd5635a1 | 199 | if (!exec_bfd) |
806f810b | 200 | error ("\"%s\": could not open as an executable file: %s", |
c4a081e1 | 201 | scratch_pathname, bfd_errmsg (bfd_get_error ())); |
3f17fed8 GN |
202 | |
203 | /* At this point, scratch_pathname and exec_bfd->name both point to the | |
204 | same malloc'd string. However exec_close() will attempt to free it | |
205 | via the exec_bfd->name pointer, so we need to make another copy and | |
206 | leave exec_bfd as the new owner of the original copy. */ | |
207 | scratch_pathname = strdup (scratch_pathname); | |
208 | make_cleanup (free, scratch_pathname); | |
209 | ||
bd5635a1 | 210 | if (!bfd_check_format (exec_bfd, bfd_object)) |
b02fd8ca JK |
211 | { |
212 | /* Make sure to close exec_bfd, or else "run" might try to use | |
213 | it. */ | |
214 | exec_close (0); | |
806f810b SS |
215 | error ("\"%s\": not in executable format: %s", |
216 | scratch_pathname, bfd_errmsg (bfd_get_error ())); | |
217 | } | |
218 | ||
219 | /* FIXME - This should only be run for RS6000, but the ifdef is a poor | |
220 | way to accomplish. */ | |
221 | #ifdef IBM6000_TARGET | |
222 | /* Setup initial vmap. */ | |
223 | ||
224 | map_vmap (exec_bfd, 0); | |
225 | if (vmap == NULL) | |
226 | { | |
227 | /* Make sure to close exec_bfd, or else "run" might try to use | |
228 | it. */ | |
229 | exec_close (0); | |
230 | error ("\"%s\": can't find the file sections: %s", | |
c4a081e1 | 231 | scratch_pathname, bfd_errmsg (bfd_get_error ())); |
b02fd8ca | 232 | } |
806f810b | 233 | #endif /* IBM6000_TARGET */ |
bd5635a1 | 234 | |
be772100 JG |
235 | if (build_section_table (exec_bfd, &exec_ops.to_sections, |
236 | &exec_ops.to_sections_end)) | |
b02fd8ca JK |
237 | { |
238 | /* Make sure to close exec_bfd, or else "run" might try to use | |
239 | it. */ | |
240 | exec_close (0); | |
806f810b SS |
241 | error ("\"%s\": can't find the file sections: %s", |
242 | scratch_pathname, bfd_errmsg (bfd_get_error ())); | |
b02fd8ca | 243 | } |
bd5635a1 | 244 | |
dad0e12d | 245 | #ifdef NEED_TEXT_START_END |
b02fd8ca JK |
246 | |
247 | /* text_end is sometimes used for where to put call dummies. A | |
248 | few ports use these for other purposes too. */ | |
249 | ||
7730bd5a JG |
250 | { |
251 | struct section_table *p; | |
b02fd8ca JK |
252 | |
253 | /* Set text_start to the lowest address of the start of any | |
254 | readonly code section and set text_end to the highest | |
255 | address of the end of any readonly code section. */ | |
e7b5942b JK |
256 | /* FIXME: The comment above does not match the code. The code |
257 | checks for sections with are either code *or* readonly. */ | |
b02fd8ca JK |
258 | |
259 | text_start = ~(CORE_ADDR)0; | |
260 | text_end = (CORE_ADDR)0; | |
be772100 | 261 | for (p = exec_ops.to_sections; p < exec_ops.to_sections_end; p++) |
b83ed019 | 262 | if (bfd_get_section_flags (p->bfd, p->the_bfd_section) |
b02fd8ca | 263 | & (SEC_CODE | SEC_READONLY)) |
dad0e12d | 264 | { |
b02fd8ca JK |
265 | if (text_start > p->addr) |
266 | text_start = p->addr; | |
267 | if (text_end < p->endaddr) | |
268 | text_end = p->endaddr; | |
dad0e12d | 269 | } |
7730bd5a JG |
270 | } |
271 | #endif | |
272 | ||
bd5635a1 RP |
273 | validate_files (); |
274 | ||
b83ed019 ILT |
275 | set_endian_from_file (exec_bfd); |
276 | ||
bd5635a1 RP |
277 | push_target (&exec_ops); |
278 | ||
279 | /* Tell display code (if any) about the changed file name. */ | |
280 | if (exec_file_display_hook) | |
281 | (*exec_file_display_hook) (filename); | |
282 | } | |
283 | else if (from_tty) | |
b02fd8ca | 284 | printf_unfiltered ("No exec file now.\n"); |
bd5635a1 RP |
285 | } |
286 | ||
287 | /* Set both the exec file and the symbol file, in one command. | |
288 | What a novelty. Why did GDB go through four major releases before this | |
289 | command was added? */ | |
290 | ||
be772100 | 291 | static void |
bd5635a1 RP |
292 | file_command (arg, from_tty) |
293 | char *arg; | |
294 | int from_tty; | |
295 | { | |
296 | /* FIXME, if we lose on reading the symbol file, we should revert | |
297 | the exec file, but that's rough. */ | |
298 | exec_file_command (arg, from_tty); | |
299 | symbol_file_command (arg, from_tty); | |
300 | } | |
301 | ||
302 | \f | |
bdbd5f50 JG |
303 | /* Locate all mappable sections of a BFD file. |
304 | table_pp_char is a char * to get it through bfd_map_over_sections; | |
305 | we cast it back to its proper type. */ | |
bd5635a1 | 306 | |
be772100 | 307 | static void |
bdbd5f50 | 308 | add_to_section_table (abfd, asect, table_pp_char) |
bd5635a1 RP |
309 | bfd *abfd; |
310 | sec_ptr asect; | |
be772100 | 311 | PTR table_pp_char; |
bd5635a1 | 312 | { |
bdbd5f50 | 313 | struct section_table **table_pp = (struct section_table **)table_pp_char; |
bd5635a1 RP |
314 | flagword aflag; |
315 | ||
316 | aflag = bfd_get_section_flags (abfd, asect); | |
c4a081e1 | 317 | if (!(aflag & SEC_ALLOC)) |
bd5635a1 | 318 | return; |
dad0e12d JG |
319 | if (0 == bfd_section_size (abfd, asect)) |
320 | return; | |
bdbd5f50 | 321 | (*table_pp)->bfd = abfd; |
b83ed019 | 322 | (*table_pp)->the_bfd_section = asect; |
bd5635a1 RP |
323 | (*table_pp)->addr = bfd_section_vma (abfd, asect); |
324 | (*table_pp)->endaddr = (*table_pp)->addr + bfd_section_size (abfd, asect); | |
325 | (*table_pp)++; | |
326 | } | |
327 | ||
be772100 JG |
328 | /* Builds a section table, given args BFD, SECTABLE_PTR, SECEND_PTR. |
329 | Returns 0 if OK, 1 on error. */ | |
330 | ||
bd5635a1 RP |
331 | int |
332 | build_section_table (some_bfd, start, end) | |
333 | bfd *some_bfd; | |
334 | struct section_table **start, **end; | |
335 | { | |
336 | unsigned count; | |
337 | ||
338 | count = bfd_count_sections (some_bfd); | |
777bef06 | 339 | if (*start) |
be772100 | 340 | free ((PTR)*start); |
bd5635a1 RP |
341 | *start = (struct section_table *) xmalloc (count * sizeof (**start)); |
342 | *end = *start; | |
bdbd5f50 | 343 | bfd_map_over_sections (some_bfd, add_to_section_table, (char *)end); |
bd5635a1 RP |
344 | if (*end > *start + count) |
345 | abort(); | |
346 | /* We could realloc the table, but it probably loses for most files. */ | |
347 | return 0; | |
348 | } | |
349 | \f | |
806f810b SS |
350 | static void |
351 | bfdsec_to_vmap(abfd, sect, arg3) | |
352 | bfd *abfd; | |
353 | sec_ptr sect; | |
354 | PTR arg3; | |
355 | { | |
356 | struct vmap_and_bfd *vmap_bfd = (struct vmap_and_bfd *) arg3; | |
357 | struct vmap *vp; | |
358 | ||
359 | vp = vmap_bfd->pvmap; | |
360 | ||
361 | if ((bfd_get_section_flags (abfd, sect) & SEC_LOAD) == 0) | |
362 | return; | |
363 | ||
364 | if (STREQ (bfd_section_name (abfd, sect), ".text")) | |
365 | { | |
366 | vp->tstart = 0; | |
367 | vp->tend = vp->tstart + bfd_section_size (abfd, sect); | |
368 | ||
369 | /* When it comes to this adjustment value, in contrast to our previous | |
370 | belief shared objects should behave the same as the main load segment. | |
371 | This is the offset from the beginning of text section to the first | |
372 | real instruction. */ | |
373 | ||
374 | vp->tadj = sect->filepos - bfd_section_vma (abfd, sect); | |
375 | } | |
376 | else if (STREQ (bfd_section_name (abfd, sect), ".data")) | |
377 | { | |
378 | vp->dstart = 0; | |
379 | vp->dend = vp->dstart + bfd_section_size (abfd, sect); | |
380 | } | |
381 | /* Silently ignore other types of sections. (FIXME?) */ | |
382 | } | |
383 | ||
384 | /* Make a vmap for ABFD which might be a member of the archive ARCH. | |
385 | Return the new vmap. */ | |
386 | ||
387 | struct vmap * | |
388 | map_vmap (abfd, arch) | |
389 | bfd *abfd; | |
390 | bfd *arch; | |
391 | { | |
392 | struct vmap_and_bfd vmap_bfd; | |
393 | struct vmap *vp, **vpp; | |
394 | ||
e7b5942b | 395 | vp = (struct vmap *) xmalloc (sizeof (*vp)); |
806f810b SS |
396 | memset ((char *) vp, '\0', sizeof (*vp)); |
397 | vp->nxt = 0; | |
398 | vp->bfd = abfd; | |
399 | vp->name = bfd_get_filename (arch ? arch : abfd); | |
400 | vp->member = arch ? bfd_get_filename (abfd) : ""; | |
401 | ||
402 | vmap_bfd.pbfd = arch; | |
403 | vmap_bfd.pvmap = vp; | |
404 | bfd_map_over_sections (abfd, bfdsec_to_vmap, &vmap_bfd); | |
405 | ||
406 | /* Find the end of the list and append. */ | |
407 | for (vpp = &vmap; *vpp; vpp = &(*vpp)->nxt) | |
408 | ; | |
409 | *vpp = vp; | |
410 | ||
411 | return vp; | |
412 | } | |
413 | \f | |
bd5635a1 RP |
414 | /* Read or write the exec file. |
415 | ||
bdbd5f50 | 416 | Args are address within a BFD file, address within gdb address-space, |
bd5635a1 RP |
417 | length, and a flag indicating whether to read or write. |
418 | ||
419 | Result is a length: | |
420 | ||
421 | 0: We cannot handle this address and length. | |
422 | > 0: We have handled N bytes starting at this address. | |
423 | (If N == length, we did it all.) We might be able | |
424 | to handle more bytes beyond this length, but no | |
425 | promises. | |
426 | < 0: We cannot handle this address, but if somebody | |
427 | else handles (-N) bytes, we can start from there. | |
428 | ||
429 | The same routine is used to handle both core and exec files; | |
430 | we just tail-call it with more arguments to select between them. */ | |
431 | ||
432 | int | |
bdbd5f50 | 433 | xfer_memory (memaddr, myaddr, len, write, target) |
bd5635a1 RP |
434 | CORE_ADDR memaddr; |
435 | char *myaddr; | |
436 | int len; | |
437 | int write; | |
bdbd5f50 | 438 | struct target_ops *target; |
bd5635a1 RP |
439 | { |
440 | boolean res; | |
441 | struct section_table *p; | |
442 | CORE_ADDR nextsectaddr, memend; | |
be772100 | 443 | boolean (*xfer_fn) PARAMS ((bfd *, sec_ptr, PTR, file_ptr, bfd_size_type)); |
bd5635a1 RP |
444 | |
445 | if (len <= 0) | |
446 | abort(); | |
447 | ||
448 | memend = memaddr + len; | |
806f810b | 449 | xfer_fn = write ? bfd_set_section_contents : bfd_get_section_contents; |
bd5635a1 RP |
450 | nextsectaddr = memend; |
451 | ||
be772100 | 452 | for (p = target->to_sections; p < target->to_sections_end; p++) |
bd5635a1 RP |
453 | { |
454 | if (p->addr <= memaddr) | |
455 | if (p->endaddr >= memend) | |
456 | { | |
457 | /* Entire transfer is within this section. */ | |
806f810b SS |
458 | res = xfer_fn (p->bfd, p->the_bfd_section, myaddr, |
459 | memaddr - p->addr, len); | |
b83ed019 | 460 | return (res != 0) ? len : 0; |
bd5635a1 RP |
461 | } |
462 | else if (p->endaddr <= memaddr) | |
463 | { | |
464 | /* This section ends before the transfer starts. */ | |
465 | continue; | |
466 | } | |
467 | else | |
468 | { | |
469 | /* This section overlaps the transfer. Just do half. */ | |
470 | len = p->endaddr - memaddr; | |
806f810b SS |
471 | res = xfer_fn (p->bfd, p->the_bfd_section, myaddr, |
472 | memaddr - p->addr, len); | |
b83ed019 | 473 | return (res != 0) ? len : 0; |
bd5635a1 RP |
474 | } |
475 | else if (p->addr < nextsectaddr) | |
476 | nextsectaddr = p->addr; | |
477 | } | |
478 | ||
479 | if (nextsectaddr >= memend) | |
480 | return 0; /* We can't help */ | |
481 | else | |
482 | return - (nextsectaddr - memaddr); /* Next boundary where we can help */ | |
483 | } | |
484 | ||
bd5635a1 RP |
485 | #ifdef FIXME |
486 | #ifdef REG_STACK_SEGMENT | |
487 | /* MOVE TO BFD... */ | |
488 | /* Pyramids and AM29000s have an extra segment in the virtual address space | |
489 | for the (control) stack of register-window frames. The AM29000 folk | |
490 | call it the "register stack" rather than the "memory stack". */ | |
491 | else if (memaddr >= reg_stack_start && memaddr < reg_stack_end) | |
492 | { | |
493 | i = min (len, reg_stack_end - memaddr); | |
494 | fileptr = memaddr - reg_stack_start + reg_stack_offset; | |
495 | wanna_xfer = coredata; | |
496 | } | |
497 | #endif /* REG_STACK_SEGMENT */ | |
117f631e | 498 | #endif /* FIXME */ |
bd5635a1 | 499 | \f |
be772100 JG |
500 | void |
501 | print_section_info (t, abfd) | |
502 | struct target_ops *t; | |
503 | bfd *abfd; | |
bd5635a1 RP |
504 | { |
505 | struct section_table *p; | |
506 | ||
be772100 | 507 | printf_filtered ("\t`%s', ", bfd_get_filename(abfd)); |
7d9884b9 | 508 | wrap_here (" "); |
be772100 | 509 | printf_filtered ("file type %s.\n", bfd_get_target(abfd)); |
b83ed019 ILT |
510 | if (abfd == exec_bfd) |
511 | { | |
512 | printf_filtered ("\tEntry point: "); | |
513 | print_address_numeric (bfd_get_start_address (abfd), 1, gdb_stdout); | |
514 | printf_filtered ("\n"); | |
515 | } | |
c4a081e1 DM |
516 | for (p = t->to_sections; p < t->to_sections_end; p++) |
517 | { | |
518 | /* FIXME-32x64 need a print_address_numeric with field width */ | |
519 | printf_filtered ("\t%s", local_hex_string_custom ((unsigned long) p->addr, "08l")); | |
520 | printf_filtered (" - %s", local_hex_string_custom ((unsigned long) p->endaddr, "08l")); | |
521 | if (info_verbose) | |
522 | printf_filtered (" @ %s", | |
b83ed019 ILT |
523 | local_hex_string_custom ((unsigned long) p->the_bfd_section->filepos, "08l")); |
524 | printf_filtered (" is %s", bfd_section_name (p->bfd, p->the_bfd_section)); | |
c4a081e1 DM |
525 | if (p->bfd != abfd) |
526 | { | |
527 | printf_filtered (" in %s", bfd_get_filename (p->bfd)); | |
528 | } | |
529 | printf_filtered ("\n"); | |
be772100 | 530 | } |
bd5635a1 RP |
531 | } |
532 | ||
be772100 JG |
533 | static void |
534 | exec_files_info (t) | |
806f810b | 535 | struct target_ops *t; |
be772100 JG |
536 | { |
537 | print_section_info (t, exec_bfd); | |
806f810b SS |
538 | |
539 | if (vmap) | |
540 | { | |
541 | struct vmap *vp; | |
542 | ||
543 | printf_unfiltered ("\tMapping info for file `%s'.\n", vmap->name); | |
544 | printf_unfiltered ("\t %8.8s %8.8s %8.8s %8.8s %8.8s %s\n", | |
545 | "tstart", "tend", "dstart", "dend", "section", | |
546 | "file(member)"); | |
547 | ||
548 | for (vp = vmap; vp; vp = vp->nxt) | |
549 | printf_unfiltered ("\t0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x %s%s%s%s\n", | |
550 | vp->tstart, vp->tend, vp->dstart, vp->dend, vp->name, | |
551 | *vp->member ? "(" : "", vp->member, | |
552 | *vp->member ? ")" : ""); | |
553 | } | |
be772100 JG |
554 | } |
555 | ||
f2fc6e7a JK |
556 | static void |
557 | set_section_command (args, from_tty) | |
558 | char *args; | |
559 | int from_tty; | |
560 | { | |
561 | struct section_table *p; | |
562 | char *secname; | |
563 | unsigned seclen; | |
564 | unsigned long secaddr; | |
565 | char secprint[100]; | |
566 | long offset; | |
567 | ||
568 | if (args == 0) | |
569 | error ("Must specify section name and its virtual address"); | |
570 | ||
571 | /* Parse out section name */ | |
572 | for (secname = args; !isspace(*args); args++) ; | |
573 | seclen = args - secname; | |
574 | ||
575 | /* Parse out new virtual address */ | |
576 | secaddr = parse_and_eval_address (args); | |
577 | ||
be772100 | 578 | for (p = exec_ops.to_sections; p < exec_ops.to_sections_end; p++) { |
b83ed019 ILT |
579 | if (!strncmp (secname, bfd_section_name (exec_bfd, p->the_bfd_section), seclen) |
580 | && bfd_section_name (exec_bfd, p->the_bfd_section)[seclen] == '\0') { | |
f2fc6e7a JK |
581 | offset = secaddr - p->addr; |
582 | p->addr += offset; | |
583 | p->endaddr += offset; | |
be772100 JG |
584 | if (from_tty) |
585 | exec_files_info(&exec_ops); | |
f2fc6e7a JK |
586 | return; |
587 | } | |
588 | } | |
589 | if (seclen >= sizeof (secprint)) | |
590 | seclen = sizeof (secprint) - 1; | |
591 | strncpy (secprint, secname, seclen); | |
592 | secprint[seclen] = '\0'; | |
593 | error ("Section %s not found", secprint); | |
594 | } | |
595 | ||
b1eaba9a | 596 | /* If mourn is being called in all the right places, this could be say |
b02fd8ca | 597 | `gdb internal error' (since generic_mourn calls breakpoint_init_inferior). */ |
b1eaba9a SG |
598 | |
599 | static int | |
600 | ignore (addr, contents) | |
601 | CORE_ADDR addr; | |
602 | char *contents; | |
603 | { | |
604 | return 0; | |
605 | } | |
606 | ||
bd5635a1 | 607 | struct target_ops exec_ops = { |
2b576293 C |
608 | "exec", /* to_shortname */ |
609 | "Local exec file", /* to_longname */ | |
610 | "Use an executable file as a target.\n\ | |
611 | Specify the filename of the executable file.", /* to_doc */ | |
612 | exec_file_command, /* to_open */ | |
613 | exec_close, /* to_close */ | |
614 | find_default_attach, /* to_attach */ | |
615 | 0, /* to_detach */ | |
616 | 0, /* to_resume */ | |
617 | 0, /* to_wait */ | |
618 | 0, /* to_fetch_registers */ | |
619 | 0, /* to_store_registers */ | |
620 | 0, /* to_prepare_to_store */ | |
621 | xfer_memory, /* to_xfer_memory */ | |
622 | exec_files_info, /* to_files_info */ | |
623 | ignore, /* to_insert_breakpoint */ | |
624 | ignore, /* to_remove_breakpoint */ | |
625 | 0, /* to_terminal_init */ | |
626 | 0, /* to_terminal_inferior */ | |
627 | 0, /* to_terminal_ours_for_output */ | |
628 | 0, /* to_terminal_ours */ | |
629 | 0, /* to_terminal_info */ | |
630 | 0, /* to_kill */ | |
631 | 0, /* to_load */ | |
632 | 0, /* to_lookup_symbol */ | |
633 | find_default_create_inferior, /* to_create_inferior */ | |
634 | 0, /* to_mourn_inferior */ | |
635 | 0, /* to_can_run */ | |
636 | 0, /* to_notice_signals */ | |
637 | 0, /* to_thread_alive */ | |
638 | 0, /* to_stop */ | |
639 | file_stratum, /* to_stratum */ | |
640 | 0, /* to_next */ | |
641 | 0, /* to_has_all_memory */ | |
642 | 1, /* to_has_memory */ | |
643 | 0, /* to_has_stack */ | |
644 | 0, /* to_has_registers */ | |
645 | 0, /* to_has_execution */ | |
646 | 0, /* to_sections */ | |
647 | 0, /* to_sections_end */ | |
648 | OPS_MAGIC, /* to_magic */ | |
bd5635a1 RP |
649 | }; |
650 | ||
651 | void | |
652 | _initialize_exec() | |
653 | { | |
b1eaba9a | 654 | struct cmd_list_element *c; |
bd5635a1 | 655 | |
b1eaba9a SG |
656 | c = add_cmd ("file", class_files, file_command, |
657 | "Use FILE as program to be debugged.\n\ | |
bd5635a1 RP |
658 | It is read for its symbols, for getting the contents of pure memory,\n\ |
659 | and it is the program executed when you use the `run' command.\n\ | |
660 | If FILE cannot be found as specified, your execution directory path\n\ | |
661 | ($PATH) is searched for a command of that name.\n\ | |
b1eaba9a SG |
662 | No arg means to have no executable file and no symbols.", &cmdlist); |
663 | c->completer = filename_completer; | |
bd5635a1 | 664 | |
b1eaba9a | 665 | c = add_cmd ("exec-file", class_files, exec_file_command, |
bd5635a1 RP |
666 | "Use FILE as program for getting contents of pure memory.\n\ |
667 | If FILE cannot be found as specified, your execution directory path\n\ | |
668 | is searched for a command of that name.\n\ | |
b1eaba9a SG |
669 | No arg means have no executable file.", &cmdlist); |
670 | c->completer = filename_completer; | |
bd5635a1 | 671 | |
f2fc6e7a JK |
672 | add_com ("section", class_files, set_section_command, |
673 | "Change the base address of section SECTION of the exec file to ADDR.\n\ | |
674 | This can be used if the exec file does not contain section addresses,\n\ | |
675 | (such as in the a.out format), or when the addresses specified in the\n\ | |
676 | file itself are wrong. Each section must be changed separately. The\n\ | |
677 | ``info files'' command lists all the sections and their addresses."); | |
678 | ||
bdbd5f50 JG |
679 | add_show_from_set |
680 | (add_set_cmd ("write", class_support, var_boolean, (char *)&write_files, | |
681 | "Set writing into executable and core files.", | |
682 | &setlist), | |
683 | &showlist); | |
684 | ||
bd5635a1 RP |
685 | add_target (&exec_ops); |
686 | } |