Commit | Line | Data |
---|---|---|
41abdfbd | 1 | /* Execute AIXcoff files, for GDB. |
e17960fb | 2 | Copyright 1988, 1989, 1991, 1992 Free Software Foundation, Inc. |
41abdfbd JG |
3 | Derived from exec.c. Modified by IBM Corporation. |
4 | Donated by IBM Corporation and Cygnus Support. | |
5 | ||
6 | This file is part of GDB. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
21 | ||
22 | /* xcoff-exec - deal with executing XCOFF files. */ | |
23 | ||
d747e0af MT |
24 | #include "defs.h" |
25 | ||
41abdfbd JG |
26 | #include <sys/types.h> |
27 | #include <sys/param.h> | |
28 | #include <fcntl.h> | |
29 | #include <string.h> | |
30 | #include <ctype.h> | |
31 | #include <sys/stat.h> | |
32 | #include <sys/ldr.h> | |
33 | ||
41abdfbd JG |
34 | #include "frame.h" |
35 | #include "inferior.h" | |
36 | #include "target.h" | |
37 | #include "gdbcmd.h" | |
38 | #include "gdbcore.h" | |
39 | #include "symfile.h" | |
5e2e79f8 | 40 | #include "objfiles.h" |
41abdfbd JG |
41 | |
42 | #include "libbfd.h" /* BFD internals (sigh!) FIXME */ | |
2aefe6e4 | 43 | #include "bfd.h" |
1eeba686 | 44 | #include "xcoffsolib.h" |
41abdfbd | 45 | |
1ab3bf1b JG |
46 | /* Prototypes for local functions */ |
47 | ||
1ab3bf1b JG |
48 | static void |
49 | file_command PARAMS ((char *, int)); | |
50 | ||
51 | static void | |
52 | exec_close PARAMS ((int)); | |
53 | ||
2aefe6e4 JK |
54 | static struct vmap * |
55 | map_vmap PARAMS ((bfd *, bfd *)); | |
56 | ||
41abdfbd JG |
57 | struct section_table *exec_sections, *exec_sections_end; |
58 | ||
41abdfbd JG |
59 | /* Whether to open exec and core files read-only or read-write. */ |
60 | ||
61 | int write_files = 0; | |
62 | ||
818de002 PB |
63 | extern int info_verbose; |
64 | ||
41abdfbd JG |
65 | bfd *exec_bfd; /* needed by core.c */ |
66 | ||
67 | extern char *getenv(); | |
41abdfbd JG |
68 | extern void add_syms_addr_command (); |
69 | extern void symbol_file_command (); | |
70 | static void exec_files_info(); | |
1eeba686 PB |
71 | |
72 | struct vmap *vmap; /* current vmap */ | |
41abdfbd JG |
73 | |
74 | extern struct target_ops exec_ops; | |
75 | ||
76 | ||
77 | /* exec_close - done with exec file, clean up all resources. */ | |
78 | ||
1ab3bf1b | 79 | static void |
818de002 PB |
80 | exec_close(quitting) |
81 | { | |
82 | register struct vmap *vp, *nxt; | |
83 | struct objfile *obj; | |
84 | ||
85 | for (nxt = vmap; vp = nxt; ) | |
86 | { | |
87 | nxt = vp->nxt; | |
88 | ||
89 | /* if there is an objfile associated with this bfd, | |
90 | free_objfile() will do proper cleanup of objfile *and* bfd. */ | |
91 | ||
2aefe6e4 JK |
92 | if (vp->objfile) |
93 | free_objfile (vp->objfile); | |
818de002 PB |
94 | else |
95 | bfd_close(vp->bfd); | |
2aefe6e4 JK |
96 | |
97 | /* FIXME: This routine is #if 0'd in symfile.c. What should we | |
98 | be doing here? Should we just free everything in | |
99 | vp->objfile->symtabs? Should free_objfile do that? */ | |
818de002 PB |
100 | free_named_symtabs(vp->name); |
101 | free(vp); | |
102 | } | |
103 | ||
104 | vmap = 0; | |
507e4004 PB |
105 | |
106 | if (exec_bfd) { | |
107 | bfd_close (exec_bfd); | |
108 | exec_bfd = NULL; | |
109 | } | |
110 | if (exec_ops.to_sections) { | |
111 | free (exec_ops.to_sections); | |
112 | exec_ops.to_sections = NULL; | |
113 | exec_ops.to_sections_end = NULL; | |
114 | } | |
41abdfbd JG |
115 | } |
116 | ||
117 | /* | |
118 | * exec_file_command - handle the "exec" command, &c. | |
119 | */ | |
120 | void | |
121 | exec_file_command(filename, from_tty) | |
122 | char *filename; | |
123 | { | |
41abdfbd | 124 | target_preopen(from_tty); |
507e4004 PB |
125 | |
126 | /* Remove any previous exec file. */ | |
41abdfbd JG |
127 | unpush_target(&exec_ops); |
128 | ||
129 | /* Now open and digest the file the user requested, if any. */ | |
130 | ||
131 | if (filename) { | |
132 | char *scratch_pathname; | |
133 | int scratch_chan; | |
134 | ||
135 | filename = tilde_expand(filename); | |
1ab3bf1b | 136 | make_cleanup (free, filename); |
41abdfbd | 137 | |
507e4004 PB |
138 | scratch_chan = openp(getenv("PATH"), 1, filename, |
139 | write_files? O_RDWR: O_RDONLY, 0, | |
140 | &scratch_pathname); | |
41abdfbd JG |
141 | if (scratch_chan < 0) |
142 | perror_with_name(filename); | |
143 | ||
507e4004 PB |
144 | exec_bfd = bfd_fdopenr(scratch_pathname, NULL, scratch_chan); |
145 | if (!exec_bfd) | |
41abdfbd JG |
146 | error("Could not open `%s' as an executable file: %s" |
147 | , scratch_pathname, bfd_errmsg(bfd_error)); | |
148 | ||
149 | /* make sure we have an object file */ | |
150 | ||
507e4004 PB |
151 | if (!bfd_check_format(exec_bfd, bfd_object)) |
152 | error("\"%s\": not in executable format: %s.", | |
153 | scratch_pathname, bfd_errmsg(bfd_error)); | |
41abdfbd JG |
154 | |
155 | ||
156 | /* setup initial vmap */ | |
157 | ||
507e4004 | 158 | map_vmap (exec_bfd, 0); |
41abdfbd | 159 | if (!vmap) |
507e4004 PB |
160 | error("Can't find the file sections in `%s': %s", |
161 | exec_bfd->filename, bfd_errmsg(bfd_error)); | |
41abdfbd | 162 | |
507e4004 PB |
163 | if (build_section_table (exec_bfd, &exec_ops.to_sections, |
164 | &exec_ops.to_sections_end)) | |
41abdfbd JG |
165 | error ("Can't find the file sections in `%s': %s", |
166 | exec_bfd->filename, bfd_errmsg (bfd_error)); | |
167 | ||
168 | /* make sure core, if present, matches */ | |
169 | validate_files(); | |
170 | ||
171 | push_target(&exec_ops); | |
172 | ||
173 | /* Tell display code(if any) about the changed file name. */ | |
174 | ||
175 | if (exec_file_display_hook) | |
176 | (*exec_file_display_hook)(filename); | |
177 | } | |
178 | else { | |
179 | exec_close(0); /* just in case */ | |
180 | if (from_tty) | |
181 | printf("No exec file now.\n"); | |
182 | } | |
183 | } | |
184 | ||
185 | /* Set both the exec file and the symbol file, in one command. What a | |
186 | * novelty. Why did GDB go through four major releases before this | |
187 | * command was added? | |
188 | */ | |
1ab3bf1b | 189 | static void |
41abdfbd JG |
190 | file_command(arg, from_tty) |
191 | char *arg; { | |
192 | ||
193 | exec_file_command(arg, from_tty); | |
194 | symbol_file_command(arg, from_tty); | |
195 | } | |
196 | ||
197 | /* Locate all mappable sections of a BFD file. | |
198 | table_pp_char is a char * to get it through bfd_map_over_sections; | |
199 | we cast it back to its proper type. */ | |
200 | ||
1ab3bf1b | 201 | static void |
41abdfbd JG |
202 | add_to_section_table (abfd, asect, table_pp_char) |
203 | bfd *abfd; | |
204 | sec_ptr asect; | |
205 | char *table_pp_char; | |
206 | { | |
207 | struct section_table **table_pp = (struct section_table **)table_pp_char; | |
208 | flagword aflag; | |
209 | ||
210 | aflag = bfd_get_section_flags (abfd, asect); | |
211 | /* FIXME, we need to handle BSS segment here...it alloc's but doesn't load */ | |
212 | if (!(aflag & SEC_LOAD)) | |
213 | return; | |
507e4004 PB |
214 | if (0 == bfd_section_size (abfd, asect)) |
215 | return; | |
216 | (*table_pp)->bfd = abfd; | |
41abdfbd JG |
217 | (*table_pp)->sec_ptr = asect; |
218 | (*table_pp)->addr = bfd_section_vma (abfd, asect); | |
219 | (*table_pp)->endaddr = (*table_pp)->addr + bfd_section_size (abfd, asect); | |
220 | (*table_pp)++; | |
221 | } | |
222 | ||
223 | int | |
224 | build_section_table (some_bfd, start, end) | |
225 | bfd *some_bfd; | |
226 | struct section_table **start, **end; | |
227 | { | |
228 | unsigned count; | |
229 | ||
230 | count = bfd_count_sections (some_bfd); | |
231 | if (count == 0) | |
232 | abort(); /* return 1? */ | |
233 | if (*start) | |
234 | free (*start); | |
235 | *start = (struct section_table *) xmalloc (count * sizeof (**start)); | |
236 | *end = *start; | |
237 | bfd_map_over_sections (some_bfd, add_to_section_table, (char *)end); | |
238 | if (*end > *start + count) | |
239 | abort(); | |
240 | /* We could realloc the table, but it probably loses for most files. */ | |
241 | return 0; | |
242 | } | |
2aefe6e4 | 243 | \f |
41abdfbd JG |
244 | void |
245 | sex_to_vmap(bfd *bf, sec_ptr sex, struct vmap_and_bfd *vmap_bfd) | |
246 | { | |
247 | register struct vmap *vp, **vpp; | |
248 | register struct symtab *syms; | |
249 | bfd *arch = vmap_bfd->pbfd; | |
250 | vp = vmap_bfd->pvmap; | |
251 | ||
252 | if ((bfd_get_section_flags(bf, sex) & SEC_LOAD) == 0) | |
253 | return; | |
254 | ||
2e4964ad | 255 | if (STREQ(bfd_section_name(bf, sex), ".text")) { |
41abdfbd JG |
256 | vp->tstart = 0; |
257 | vp->tend = vp->tstart + bfd_section_size(bf, sex); | |
258 | ||
507e4004 PB |
259 | /* When it comes to this adjustment value, in contrast to our previous |
260 | belief shared objects should behave the same as the main load segment. | |
261 | This is the offset from the beginning of text section to the first | |
262 | real instruction. */ | |
263 | ||
264 | vp->tadj = sex->filepos - bfd_section_vma(bf, sex); | |
41abdfbd JG |
265 | } |
266 | ||
2e4964ad | 267 | else if (STREQ(bfd_section_name(bf, sex), ".data")) { |
41abdfbd JG |
268 | vp->dstart = 0; |
269 | vp->dend = vp->dstart + bfd_section_size(bf, sex); | |
270 | } | |
271 | ||
2e4964ad | 272 | else if (STREQ(bfd_section_name(bf, sex), ".bss")) /* FIXMEmgo */ |
41abdfbd JG |
273 | printf ("bss section in exec! Don't know what the heck to do!\n"); |
274 | } | |
275 | ||
276 | /* Make a vmap for the BFD "bf", which might be a member of the archive | |
2aefe6e4 JK |
277 | BFD "arch". Return the new vmap. */ |
278 | struct vmap * | |
41abdfbd JG |
279 | map_vmap (bfd *bf, bfd *arch) |
280 | { | |
281 | struct vmap_and_bfd vmap_bfd; | |
282 | struct vmap *vp, **vpp; | |
283 | struct objfile *obj; | |
41abdfbd JG |
284 | |
285 | vp = (void*) xmalloc (sizeof (*vp)); | |
1eeba686 | 286 | bzero (vp, sizeof (*vp)); |
41abdfbd JG |
287 | vp->nxt = 0; |
288 | vp->bfd = bf; | |
289 | vp->name = bfd_get_filename(arch ? arch : bf); | |
290 | vp->member = arch ? bfd_get_filename(bf) : ""; | |
291 | ||
292 | vmap_bfd.pbfd = arch; | |
293 | vmap_bfd.pvmap = vp; | |
294 | bfd_map_over_sections (bf, sex_to_vmap, &vmap_bfd); | |
295 | ||
41abdfbd JG |
296 | /* find the end of the list, and append. */ |
297 | for (vpp = &vmap; *vpp; vpp = &(*vpp)->nxt) | |
298 | ; | |
299 | *vpp = vp; | |
2aefe6e4 JK |
300 | |
301 | return vp; | |
41abdfbd JG |
302 | } |
303 | ||
507e4004 | 304 | |
1ab3bf1b | 305 | /* true, if symbol table and minimal symbol table are relocated. */ |
41abdfbd JG |
306 | |
307 | int symtab_relocated = 0; | |
308 | ||
309 | ||
310 | /* vmap_symtab - handle symbol translation on vmapping */ | |
311 | ||
312 | vmap_symtab(vp, old_start, vip) | |
313 | register struct vmap *vp; | |
314 | CORE_ADDR old_start; | |
315 | struct stat *vip; | |
316 | { | |
1ab3bf1b JG |
317 | register struct symtab *s; |
318 | register struct objfile *objfile; | |
84ffdec2 | 319 | register struct minimal_symbol *msymbol; |
1ab3bf1b | 320 | |
2aefe6e4 JK |
321 | objfile = vp->objfile; |
322 | if (objfile == NULL) | |
1ab3bf1b | 323 | { |
2aefe6e4 JK |
324 | /* OK, it's not an objfile we opened ourselves. |
325 | Currently, that can only happen with the exec file, so | |
326 | relocate the symbols for the symfile. */ | |
327 | if (symfile_objfile == NULL) | |
328 | return; | |
329 | objfile = symfile_objfile; | |
330 | } | |
cbf15d9a | 331 | |
2aefe6e4 | 332 | s = objfile->symtabs; |
cbf15d9a | 333 | |
507e4004 PB |
334 | if (vp->tstart != old_start) { |
335 | ||
336 | /* Once we find a relocation base address for one of the symtabs | |
337 | in this objfile, it will be the same for all symtabs in this | |
338 | objfile. Clean this algorithm. FIXME. */ | |
339 | ||
340 | for (; s; s = s->next) | |
341 | if (!s->nonreloc || LINETABLE(s)) | |
342 | vmap_symtab_1(s, vp, old_start); | |
556f3d90 | 343 | |
2aefe6e4 JK |
344 | #if 1 |
345 | /* I believe trampoline entries now have a name like | |
346 | <trampoline>. In any event, if something needs to be changed, | |
347 | it should be changed in ALL_MSYMBOLS, so it works everywhere. */ | |
348 | /* | |
556f3d90 PB |
349 | Himm.., recently we nullified trampoline entry names in order not |
350 | to confuse them with real symbols. Appearently this turned into a | |
351 | problem, and msymbol vector did not get relocated properly. If | |
352 | msymbols have to have non-null names, then we should name | |
2aefe6e4 | 353 | trampoline entries with empty strings. */ |
556f3d90 PB |
354 | |
355 | ALL_MSYMBOLS (objfile, msymbol) | |
356 | #else | |
357 | for (msymbol = objfile->msymbols; | |
2eda1cdf FF |
358 | SYMBOL_NAME (msymbol) || SYMBOL_VALUE_ADDRESS (msymbol); |
359 | (msymbol)++) | |
556f3d90 | 360 | #endif |
2eda1cdf FF |
361 | if (SYMBOL_VALUE_ADDRESS (msymbol) < TEXT_SEGMENT_BASE) |
362 | SYMBOL_VALUE_ADDRESS (msymbol) += vp->tstart - old_start; | |
556f3d90 | 363 | |
507e4004 | 364 | } |
507e4004 | 365 | |
818de002 | 366 | if (vp->tstart != old_start) { |
818de002 PB |
367 | /* breakpoints need to be relocated as well. */ |
368 | fixup_breakpoints (0, TEXT_SEGMENT_BASE, vp->tstart - old_start); | |
369 | } | |
1ab3bf1b JG |
370 | |
371 | symtab_relocated = 1; | |
41abdfbd JG |
372 | } |
373 | ||
507e4004 | 374 | |
41abdfbd JG |
375 | vmap_symtab_1(s, vp, old_start) |
376 | register struct symtab *s; | |
377 | register struct vmap *vp; | |
378 | CORE_ADDR old_start; | |
379 | { | |
380 | register int i, j; | |
381 | int len, blen; | |
382 | register struct linetable *l; | |
383 | struct blockvector *bv; | |
384 | register struct block *b; | |
385 | int depth; | |
386 | register ulong reloc, dreloc; | |
387 | ||
388 | if ((reloc = vp->tstart - old_start) == 0) | |
389 | return; | |
390 | ||
391 | dreloc = vp->dstart; /* data relocation */ | |
392 | ||
393 | /* | |
394 | * The line table must be relocated. This is only present for | |
818de002 | 395 | * .text sections, so only vp->text type maps need be considered. |
41abdfbd JG |
396 | */ |
397 | l = LINETABLE (s); | |
818de002 PB |
398 | if (l) { |
399 | len = l->nitems; | |
400 | for (i = 0; i < len; i++) | |
41abdfbd | 401 | l->item[i].pc += reloc; |
818de002 | 402 | } |
41abdfbd JG |
403 | |
404 | /* if this symbol table is not relocatable, only line table should | |
405 | be relocated and the rest ignored. */ | |
406 | if (s->nonreloc) | |
407 | return; | |
408 | ||
409 | bv = BLOCKVECTOR(s); | |
410 | len = BLOCKVECTOR_NBLOCKS(bv); | |
411 | ||
412 | for (i = 0; i < len; i++) { | |
413 | b = BLOCKVECTOR_BLOCK(bv, i); | |
414 | ||
415 | BLOCK_START(b) += reloc; | |
416 | BLOCK_END(b) += reloc; | |
417 | ||
418 | blen = BLOCK_NSYMS(b); | |
419 | for (j = 0; j < blen; j++) { | |
420 | register struct symbol *sym; | |
421 | ||
422 | sym = BLOCK_SYM(b, j); | |
423 | switch (SYMBOL_NAMESPACE(sym)) { | |
424 | case STRUCT_NAMESPACE: | |
425 | case UNDEF_NAMESPACE: | |
426 | continue; | |
427 | ||
428 | case LABEL_NAMESPACE: | |
429 | case VAR_NAMESPACE: | |
430 | break; | |
431 | } | |
432 | ||
433 | switch (SYMBOL_CLASS(sym)) { | |
434 | case LOC_CONST: | |
435 | case LOC_CONST_BYTES: | |
436 | case LOC_LOCAL: | |
437 | case LOC_REGISTER: | |
438 | case LOC_ARG: | |
439 | case LOC_LOCAL_ARG: | |
440 | case LOC_REF_ARG: | |
441 | case LOC_REGPARM: | |
442 | case LOC_TYPEDEF: | |
443 | continue; | |
444 | ||
445 | #ifdef FIXME | |
446 | case LOC_EXTERNAL: | |
447 | #endif | |
448 | case LOC_LABEL: | |
449 | SYMBOL_VALUE_ADDRESS(sym) += reloc; | |
450 | break; | |
451 | ||
452 | case LOC_STATIC: | |
453 | SYMBOL_VALUE_ADDRESS(sym) += dreloc; | |
454 | break; | |
455 | ||
456 | case LOC_BLOCK: | |
457 | break; | |
458 | ||
459 | default: | |
460 | fatal("botched symbol class %x" | |
461 | , SYMBOL_CLASS(sym)); | |
462 | break; | |
463 | } | |
464 | } | |
465 | } | |
466 | } | |
467 | ||
8112a711 JK |
468 | /* Add symbols for an objfile. */ |
469 | static int | |
470 | objfile_symbol_add (arg) | |
471 | char *arg; | |
472 | { | |
473 | struct objfile *obj = (struct objfile *) arg; | |
474 | syms_from_objfile (obj, 0, 0, 0); | |
475 | new_symfile_objfile (obj, 0, 0); | |
476 | return 1; | |
477 | } | |
478 | ||
2aefe6e4 JK |
479 | static struct vmap *add_vmap PARAMS ((struct ld_info *)); |
480 | ||
481 | /* Add a new vmap entry based on ldinfo() information. | |
482 | ||
483 | If ldi->ldinfo_fd is not valid (e.g. this struct ld_info is from a | |
484 | core file), the caller should set it to -1, and we will open the file. | |
485 | ||
486 | Return the vmap new entry. */ | |
487 | static struct vmap * | |
41abdfbd | 488 | add_vmap(ldi) |
2aefe6e4 JK |
489 | register struct ld_info *ldi; |
490 | { | |
41abdfbd | 491 | bfd *bfd, *last; |
507e4004 | 492 | register char *mem, *objname; |
2aefe6e4 JK |
493 | struct objfile *obj; |
494 | struct vmap *vp; | |
507e4004 PB |
495 | |
496 | /* This ldi structure was allocated using alloca() in | |
9b280a7f | 497 | xcoff_relocate_symtab(). Now we need to have persistent object |
507e4004 | 498 | and member names, so we should save them. */ |
41abdfbd JG |
499 | |
500 | mem = ldi->ldinfo_filename + strlen(ldi->ldinfo_filename) + 1; | |
507e4004 PB |
501 | mem = savestring (mem, strlen (mem)); |
502 | objname = savestring (ldi->ldinfo_filename, strlen (ldi->ldinfo_filename)); | |
503 | ||
2aefe6e4 JK |
504 | if (ldi->ldinfo_fd < 0) |
505 | /* Note that this opens it once for every member; a possible | |
506 | enhancement would be to only open it once for every object. */ | |
507 | bfd = bfd_openr (objname, NULL); | |
508 | else | |
509 | bfd = bfd_fdopenr(objname, NULL, ldi->ldinfo_fd); | |
41abdfbd | 510 | if (!bfd) |
507e4004 PB |
511 | error("Could not open `%s' as an executable file: %s", |
512 | objname, bfd_errmsg(bfd_error)); | |
41abdfbd JG |
513 | |
514 | ||
515 | /* make sure we have an object file */ | |
516 | ||
517 | if (bfd_check_format(bfd, bfd_object)) | |
2aefe6e4 | 518 | vp = map_vmap (bfd, 0); |
41abdfbd JG |
519 | |
520 | else if (bfd_check_format(bfd, bfd_archive)) { | |
521 | last = 0; | |
522 | /* | |
523 | * FIXME??? am I tossing BFDs? bfd? | |
524 | */ | |
525 | while (last = bfd_openr_next_archived_file(bfd, last)) | |
2e4964ad | 526 | if (STREQ(mem, last->filename)) |
41abdfbd JG |
527 | break; |
528 | ||
529 | if (!last) { | |
507e4004 PB |
530 | bfd_close(bfd); |
531 | /* FIXME -- should be error */ | |
532 | warning("\"%s\": member \"%s\" missing.", bfd->filename, mem); | |
533 | return; | |
41abdfbd JG |
534 | } |
535 | ||
536 | if (!bfd_check_format(last, bfd_object)) { | |
537 | bfd_close(last); /* XXX??? */ | |
538 | goto obj_err; | |
539 | } | |
540 | ||
2aefe6e4 | 541 | vp = map_vmap (last, bfd); |
41abdfbd JG |
542 | } |
543 | else { | |
544 | obj_err: | |
545 | bfd_close(bfd); | |
2aefe6e4 JK |
546 | error ("\"%s\": not in executable format: %s.", |
547 | objname, bfd_errmsg(bfd_error)); | |
548 | /*NOTREACHED*/ | |
41abdfbd | 549 | } |
2aefe6e4 JK |
550 | obj = allocate_objfile (vp->bfd, 0); |
551 | vp->objfile = obj; | |
552 | ||
553 | #ifndef SOLIB_SYMBOLS_MANUAL | |
8112a711 JK |
554 | if (catch_errors (objfile_symbol_add, (char *)obj, |
555 | "Error while reading shared library symbols:\n")) | |
556 | { | |
557 | /* Note this is only done if symbol reading was successful. */ | |
558 | vmap_symtab (vp, 0, 0); | |
559 | vp->loaded = 1; | |
560 | } | |
2aefe6e4 JK |
561 | #endif |
562 | return vp; | |
41abdfbd JG |
563 | } |
564 | ||
565 | ||
507e4004 PB |
566 | /* As well as symbol tables, exec_sections need relocation. After |
567 | the inferior process' termination, there will be a relocated symbol | |
568 | table exist with no corresponding inferior process. At that time, we | |
569 | need to use `exec' bfd, rather than the inferior process's memory space | |
570 | to look up symbols. | |
571 | ||
572 | `exec_sections' need to be relocated only once, as long as the exec | |
573 | file remains unchanged. | |
41abdfbd JG |
574 | */ |
575 | vmap_exec () | |
576 | { | |
577 | static bfd *execbfd; | |
1e939db1 SG |
578 | int i; |
579 | ||
41abdfbd JG |
580 | if (execbfd == exec_bfd) |
581 | return; | |
582 | ||
583 | execbfd = exec_bfd; | |
584 | ||
1e939db1 SG |
585 | if (!vmap || !exec_ops.to_sections) |
586 | error ("vmap_exec: vmap or exec_ops.to_sections == 0\n"); | |
507e4004 | 587 | |
1e939db1 SG |
588 | for (i=0; &exec_ops.to_sections[i] < exec_ops.to_sections_end; i++) |
589 | { | |
2e4964ad | 590 | if (STREQ(".text", exec_ops.to_sections[i].sec_ptr->name)) |
1e939db1 SG |
591 | { |
592 | exec_ops.to_sections[i].addr += vmap->tstart; | |
593 | exec_ops.to_sections[i].endaddr += vmap->tstart; | |
594 | } | |
2e4964ad | 595 | else if (STREQ(".data", exec_ops.to_sections[i].sec_ptr->name)) |
1e939db1 SG |
596 | { |
597 | exec_ops.to_sections[i].addr += vmap->dstart; | |
598 | exec_ops.to_sections[i].endaddr += vmap->dstart; | |
599 | } | |
600 | } | |
41abdfbd JG |
601 | } |
602 | ||
2aefe6e4 JK |
603 | #if 0 |
604 | /* This was for the old, half-assed, core file support. */ | |
41abdfbd JG |
605 | int |
606 | text_adjustment (abfd) | |
607 | bfd *abfd; | |
608 | { | |
609 | static bfd *execbfd; | |
610 | static int adjustment; | |
611 | sec_ptr sect; | |
612 | ||
613 | if (exec_bfd == execbfd) | |
614 | return adjustment; | |
615 | ||
616 | sect = bfd_get_section_by_name (abfd, ".text"); | |
617 | if (sect) | |
618 | adjustment = sect->filepos - sect->vma; | |
619 | else | |
620 | adjustment = 0x200; /* just a wild assumption */ | |
621 | ||
622 | return adjustment; | |
623 | } | |
2aefe6e4 | 624 | #endif |
41abdfbd JG |
625 | |
626 | /* | |
627 | * vmap_ldinfo - update VMAP info with ldinfo() information | |
628 | * | |
629 | * Input: | |
630 | * ldi - ^ to ldinfo() results. | |
631 | */ | |
632 | vmap_ldinfo(ldi) | |
633 | register struct ld_info *ldi; | |
634 | { | |
635 | struct stat ii, vi; | |
636 | register struct vmap *vp; | |
637 | register got_one, retried; | |
638 | CORE_ADDR ostart; | |
639 | ||
640 | /* | |
641 | * for each *ldi, see if we have a corresponding *vp | |
642 | * if so, update the mapping, and symbol table. | |
643 | * if not, add an entry and symbol table. | |
644 | */ | |
645 | do { | |
646 | char *name = ldi->ldinfo_filename; | |
647 | char *memb = name + strlen(name) + 1; | |
648 | ||
649 | retried = 0; | |
650 | ||
651 | if (fstat(ldi->ldinfo_fd, &ii) < 0) | |
652 | fatal("cannot fstat(%d) on %s" | |
653 | , ldi->ldinfo_fd | |
654 | , name); | |
655 | retry: | |
656 | for (got_one = 0, vp = vmap; vp; vp = vp->nxt) { | |
1eeba686 PB |
657 | FILE *io; |
658 | ||
659 | /* First try to find a `vp', which is the same as in ldinfo. | |
660 | If not the same, just continue and grep the next `vp'. If same, | |
661 | relocate its tstart, tend, dstart, dend values. If no such `vp' | |
662 | found, get out of this for loop, add this ldi entry as a new vmap | |
663 | (add_vmap) and come back, fins its `vp' and so on... */ | |
664 | ||
665 | /* The filenames are not always sufficient to match on. */ | |
41abdfbd | 666 | |
9116f7c7 | 667 | if ((name[0] == '/' && !STREQ(name, vp->name)) |
2e4964ad | 668 | || (memb[0] && !STREQ(memb, vp->member))) |
1eeba686 | 669 | continue; |
41abdfbd | 670 | |
1eeba686 PB |
671 | io = bfd_cache_lookup(vp->bfd); /* totally opaque! */ |
672 | if (!io) | |
673 | fatal("cannot find BFD's iostream for %s", vp->name); | |
41abdfbd | 674 | |
1eeba686 | 675 | /* see if we are referring to the same file */ |
41abdfbd | 676 | |
1eeba686 PB |
677 | if (fstat(fileno(io), &vi) < 0) |
678 | fatal("cannot fstat BFD for %s", vp->name); | |
41abdfbd | 679 | |
1eeba686 PB |
680 | if (ii.st_dev != vi.st_dev || ii.st_ino != vi.st_ino) |
681 | continue; | |
41abdfbd | 682 | |
1eeba686 PB |
683 | if (!retried) |
684 | close(ldi->ldinfo_fd); | |
41abdfbd | 685 | |
1eeba686 | 686 | ++got_one; |
41abdfbd | 687 | |
1eeba686 PB |
688 | /* found a corresponding VMAP. remap! */ |
689 | ostart = vp->tstart; | |
41abdfbd | 690 | |
1eeba686 PB |
691 | vp->tstart = ldi->ldinfo_textorg; |
692 | vp->tend = vp->tstart + ldi->ldinfo_textsize; | |
693 | vp->dstart = ldi->ldinfo_dataorg; | |
694 | vp->dend = vp->dstart + ldi->ldinfo_datasize; | |
41abdfbd | 695 | |
1eeba686 PB |
696 | if (vp->tadj) { |
697 | vp->tstart += vp->tadj; | |
698 | vp->tend += vp->tadj; | |
699 | } | |
700 | ||
701 | /* relocate symbol table(s). */ | |
702 | vmap_symtab(vp, ostart, &vi); | |
41abdfbd | 703 | |
1eeba686 | 704 | /* there may be more, so we don't break out of the loop. */ |
41abdfbd JG |
705 | } |
706 | ||
1eeba686 PB |
707 | /* if there was no matching *vp, we must perforce create the sucker(s) */ |
708 | if (!got_one && !retried) { | |
709 | add_vmap(ldi); | |
710 | ++retried; | |
711 | goto retry; | |
41abdfbd JG |
712 | } |
713 | } while (ldi->ldinfo_next | |
714 | && (ldi = (void *) (ldi->ldinfo_next + (char *) ldi))); | |
715 | ||
41abdfbd JG |
716 | } |
717 | ||
718 | /* | |
719 | * vmap_inferior - print VMAP info for inferior | |
720 | */ | |
721 | vmap_inferior() { | |
722 | ||
723 | if (inferior_pid == 0) | |
507e4004 | 724 | return 0; /* normal processing */ |
41abdfbd JG |
725 | |
726 | exec_files_info(); | |
41abdfbd JG |
727 | return 1; |
728 | } | |
729 | ||
730 | /* Read or write the exec file. | |
731 | ||
732 | Args are address within exec file, address within gdb address-space, | |
733 | length, and a flag indicating whether to read or write. | |
734 | ||
735 | Result is a length: | |
736 | ||
737 | 0: We cannot handle this address and length. | |
738 | > 0: We have handled N bytes starting at this address. | |
739 | (If N == length, we did it all.) We might be able | |
740 | to handle more bytes beyond this length, but no | |
741 | promises. | |
742 | < 0: We cannot handle this address, but if somebody | |
743 | else handles (-N) bytes, we can start from there. | |
744 | ||
745 | The same routine is used to handle both core and exec files; | |
746 | we just tail-call it with more arguments to select between them. */ | |
747 | ||
748 | int | |
818de002 | 749 | xfer_memory (memaddr, myaddr, len, write, target) |
41abdfbd JG |
750 | CORE_ADDR memaddr; |
751 | char *myaddr; | |
752 | int len; | |
753 | int write; | |
818de002 | 754 | struct target_ops *target; |
41abdfbd JG |
755 | { |
756 | boolean res; | |
757 | struct section_table *p; | |
758 | CORE_ADDR nextsectaddr, memend; | |
818de002 | 759 | boolean (*xfer_fn) PARAMS ((bfd *, sec_ptr, PTR, file_ptr, bfd_size_type)); |
41abdfbd JG |
760 | |
761 | if (len <= 0) | |
762 | abort(); | |
763 | ||
764 | memend = memaddr + len; | |
765 | xfer_fn = write? bfd_set_section_contents: bfd_get_section_contents; | |
766 | nextsectaddr = memend; | |
767 | ||
818de002 | 768 | for (p = target->to_sections; p < target->to_sections_end; p++) |
41abdfbd JG |
769 | { |
770 | if (p->addr <= memaddr) | |
771 | if (p->endaddr >= memend) | |
772 | { | |
773 | /* Entire transfer is within this section. */ | |
818de002 | 774 | res = xfer_fn (p->bfd, p->sec_ptr, myaddr, memaddr - p->addr, len); |
41abdfbd JG |
775 | return (res != false)? len: 0; |
776 | } | |
777 | else if (p->endaddr <= memaddr) | |
778 | { | |
779 | /* This section ends before the transfer starts. */ | |
780 | continue; | |
781 | } | |
782 | else | |
783 | { | |
784 | /* This section overlaps the transfer. Just do half. */ | |
785 | len = p->endaddr - memaddr; | |
818de002 | 786 | res = xfer_fn (p->bfd, p->sec_ptr, myaddr, memaddr - p->addr, len); |
41abdfbd JG |
787 | return (res != false)? len: 0; |
788 | } | |
789 | else if (p->addr < nextsectaddr) | |
790 | nextsectaddr = p->addr; | |
791 | } | |
792 | ||
793 | if (nextsectaddr >= memend) | |
794 | return 0; /* We can't help */ | |
795 | else | |
796 | return - (nextsectaddr - memaddr); /* Next boundary where we can help */ | |
797 | } | |
798 | ||
818de002 PB |
799 | void |
800 | print_section_info (t, abfd) | |
801 | struct target_ops *t; | |
802 | bfd *abfd; | |
41abdfbd | 803 | { |
818de002 | 804 | struct section_table *p; |
41abdfbd | 805 | |
818de002 PB |
806 | printf_filtered ("\t`%s', ", bfd_get_filename(abfd)); |
807 | wrap_here (" "); | |
808 | printf_filtered ("file type %s.\n", bfd_get_target(abfd)); | |
809 | ||
810 | for (p = t->to_sections; p < t->to_sections_end; p++) { | |
811 | printf_filtered ("\t%s", local_hex_string_custom (p->addr, "08")); | |
812 | printf_filtered (" - %s", local_hex_string_custom (p->endaddr, "08")); | |
813 | if (info_verbose) | |
814 | printf_filtered (" @ %s", | |
815 | local_hex_string_custom (p->sec_ptr->filepos, "08")); | |
816 | printf_filtered (" is %s", bfd_section_name (p->bfd, p->sec_ptr)); | |
817 | if (p->bfd != abfd) { | |
818 | printf_filtered (" in %s", bfd_get_filename (p->bfd)); | |
819 | } | |
820 | printf_filtered ("\n"); | |
821 | } | |
818de002 PB |
822 | } |
823 | ||
507e4004 | 824 | |
818de002 PB |
825 | static void |
826 | exec_files_info (t) | |
827 | struct target_ops *t; | |
828 | { | |
507e4004 PB |
829 | register struct vmap *vp = vmap; |
830 | ||
818de002 | 831 | print_section_info (t, exec_bfd); |
507e4004 PB |
832 | |
833 | if (!vp) | |
834 | return; | |
835 | ||
1eeba686 PB |
836 | printf("\tMapping info for file `%s'.\n", vp->name); |
837 | ||
838 | printf("\t %8.8s %8.8s %8.8s %8.8s %8.8s %s\n", | |
839 | "tstart", "tend", "dstart", "dend", "section", "file(member)"); | |
507e4004 PB |
840 | |
841 | for (; vp; vp = vp->nxt) | |
1eeba686 PB |
842 | printf("\t0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x %s%s%s%s\n", |
843 | vp->tstart, | |
844 | vp->tend, | |
845 | vp->dstart, | |
846 | vp->dend, | |
847 | vp->name, | |
848 | *vp->member ? "(" : "", | |
849 | vp->member, | |
850 | *vp->member ? ")" : ""); | |
41abdfbd JG |
851 | } |
852 | ||
853 | #ifdef DAMON | |
76b28d05 | 854 | /* Damon's implementation of set_section_command! It is based on the sex member |
41abdfbd JG |
855 | (which is a section pointer from vmap) of vmap. |
856 | We will not have multiple vmap entries (one for each section), rather transmit | |
857 | text and data base offsets and fix them at the same time. Elimination of sex | |
858 | entry in vmap make this function obsolute, use the one from exec.c. | |
76b28d05 | 859 | Need further testing!! FIXMEmgo. */ |
41abdfbd JG |
860 | |
861 | static void | |
862 | set_section_command(args, from_tty) | |
863 | char *args; | |
864 | { | |
865 | register struct vmap *vp = vmap; | |
866 | char *secname; | |
867 | unsigned seclen; | |
868 | unsigned long secaddr; | |
869 | char secprint[100]; | |
870 | long offset; | |
871 | ||
872 | if (args == 0) | |
873 | error("Must specify section name and its virtual address"); | |
874 | ||
875 | /* Parse out section name */ | |
876 | for (secname = args; !isspace(*args); args++) | |
877 | ; | |
878 | seclen = args - secname; | |
879 | ||
880 | /* Parse out new virtual address */ | |
881 | secaddr = parse_and_eval_address(args); | |
882 | ||
883 | for (vp = vmap; vp; vp = vp->nxt) { | |
884 | if (!strncmp(secname | |
885 | , bfd_section_name(vp->bfd, vp->sex), seclen) | |
886 | && bfd_section_name(vp->bfd, vp->sex)[seclen] == '\0') { | |
887 | offset = secaddr - vp->tstart; | |
888 | vp->tstart += offset; | |
889 | vp->tend += offset; | |
890 | exec_files_info(); | |
891 | return; | |
892 | } | |
893 | } | |
894 | ||
895 | if (seclen >= sizeof(secprint)) | |
896 | seclen = sizeof(secprint) - 1; | |
897 | strncpy(secprint, secname, seclen); | |
898 | secprint[seclen] = '\0'; | |
899 | error("Section %s not found", secprint); | |
900 | } | |
901 | #else | |
902 | static void | |
903 | set_section_command (args, from_tty) | |
904 | char *args; | |
905 | int from_tty; | |
906 | { | |
907 | struct section_table *p; | |
908 | char *secname; | |
909 | unsigned seclen; | |
910 | unsigned long secaddr; | |
911 | char secprint[100]; | |
912 | long offset; | |
913 | ||
914 | if (args == 0) | |
915 | error ("Must specify section name and its virtual address"); | |
916 | ||
917 | /* Parse out section name */ | |
918 | for (secname = args; !isspace(*args); args++) ; | |
919 | seclen = args - secname; | |
920 | ||
921 | /* Parse out new virtual address */ | |
922 | secaddr = parse_and_eval_address (args); | |
923 | ||
507e4004 | 924 | for (p = exec_ops.to_sections; p < exec_ops.to_sections_end; p++) { |
41abdfbd JG |
925 | if (!strncmp (secname, bfd_section_name (exec_bfd, p->sec_ptr), seclen) |
926 | && bfd_section_name (exec_bfd, p->sec_ptr)[seclen] == '\0') { | |
927 | offset = secaddr - p->addr; | |
928 | p->addr += offset; | |
929 | p->endaddr += offset; | |
507e4004 PB |
930 | if (from_tty) |
931 | exec_files_info(&exec_ops); | |
41abdfbd JG |
932 | return; |
933 | } | |
934 | } | |
935 | if (seclen >= sizeof (secprint)) | |
936 | seclen = sizeof (secprint) - 1; | |
937 | strncpy (secprint, secname, seclen); | |
938 | secprint[seclen] = '\0'; | |
939 | error ("Section %s not found", secprint); | |
940 | } | |
941 | ||
942 | #endif /* !DAMON */ | |
943 | ||
944 | struct target_ops exec_ops = { | |
945 | "exec", "Local exec file", | |
946 | "Use an executable file as a target.\n\ | |
947 | Specify the filename of the executable file.", | |
948 | exec_file_command, exec_close, /* open, close */ | |
050d45c5 | 949 | find_default_attach, 0, 0, 0, /* attach, detach, resume, wait, */ |
41abdfbd | 950 | 0, 0, /* fetch_registers, store_registers, */ |
a03d4f8e | 951 | 0, /* prepare_to_store */ |
818de002 | 952 | xfer_memory, exec_files_info, |
41abdfbd JG |
953 | 0, 0, /* insert_breakpoint, remove_breakpoint, */ |
954 | 0, 0, 0, 0, 0, /* terminal stuff */ | |
955 | 0, 0, /* kill, load */ | |
e17960fb | 956 | 0, /* lookup sym */ |
050d45c5 | 957 | find_default_create_inferior, |
41abdfbd | 958 | 0, /* mourn_inferior */ |
5ee4e16c | 959 | 0, /* can_run */ |
3950a34e | 960 | 0, /* notice_signals */ |
41abdfbd JG |
961 | file_stratum, 0, /* next */ |
962 | 0, 1, 0, 0, 0, /* all mem, mem, stack, regs, exec */ | |
963 | 0, 0, /* section pointers */ | |
964 | OPS_MAGIC, /* Always the last thing */ | |
965 | }; | |
2aefe6e4 JK |
966 | \f |
967 | /* Core file stuff. */ | |
968 | ||
969 | /* Relocate symtabs and read in shared library info, based on symbols | |
970 | from the core file. */ | |
971 | void | |
972 | xcoff_relocate_core () | |
973 | { | |
974 | /* Offset of member MEMBER in a struct of type TYPE. */ | |
975 | #ifndef offsetof | |
976 | #define offsetof(TYPE, MEMBER) ((int) &((TYPE *)0)->MEMBER) | |
977 | #endif | |
978 | ||
979 | /* Size of a struct ld_info except for the variable-length filename. */ | |
980 | #define LDINFO_SIZE (offsetof (struct ld_info, ldinfo_filename)) | |
981 | ||
982 | sec_ptr ldinfo_sec; | |
983 | int offset = 0; | |
984 | struct ld_info *ldip; | |
985 | struct vmap *vp; | |
986 | ||
987 | /* Allocated size of buffer. */ | |
988 | int buffer_size = LDINFO_SIZE; | |
989 | char *buffer = xmalloc (buffer_size); | |
990 | struct cleanup *old = make_cleanup (free_current_contents, &buffer); | |
991 | ||
992 | ldinfo_sec = bfd_get_section_by_name (core_bfd, ".ldinfo"); | |
993 | if (ldinfo_sec == NULL) | |
994 | { | |
995 | bfd_err: | |
996 | fprintf_filtered (stderr, "Couldn't get ldinfo from core file: %s\n", | |
997 | bfd_errmsg (bfd_error)); | |
998 | do_cleanups (old); | |
999 | return; | |
1000 | } | |
1001 | do | |
1002 | { | |
1003 | int i; | |
1004 | int names_found = 0; | |
1005 | ||
1006 | /* Read in everything but the name. */ | |
1007 | if (bfd_get_section_contents (core_bfd, ldinfo_sec, buffer, | |
1008 | offset, LDINFO_SIZE) == 0) | |
1009 | goto bfd_err; | |
1010 | ||
1011 | /* Now the name. */ | |
1012 | i = LDINFO_SIZE; | |
1013 | do | |
1014 | { | |
1015 | if (i == buffer_size) | |
1016 | { | |
1017 | buffer_size *= 2; | |
1018 | buffer = xrealloc (buffer, buffer_size); | |
1019 | } | |
1020 | if (bfd_get_section_contents (core_bfd, ldinfo_sec, &buffer[i], | |
1021 | offset + i, 1) == 0) | |
1022 | goto bfd_err; | |
1023 | if (buffer[i++] == '\0') | |
1024 | ++names_found; | |
1025 | } while (names_found < 2); | |
1026 | ||
1027 | ldip = (struct ld_info *)buffer; | |
1028 | ||
1029 | /* Can't use a file descriptor from the core file; need to open it. */ | |
1030 | ldip->ldinfo_fd = -1; | |
1031 | ||
1032 | /* The first ldinfo is for the exec file, allocated elsewhere. */ | |
1033 | if (offset == 0) | |
1034 | vp = vmap; | |
1035 | else | |
1036 | vp = add_vmap (ldip); | |
1037 | ||
1038 | offset += ldip->ldinfo_next; | |
41abdfbd | 1039 | |
2aefe6e4 JK |
1040 | vp->tstart = ldip->ldinfo_textorg; |
1041 | vp->tend = vp->tstart + ldip->ldinfo_textsize; | |
1042 | vp->dstart = ldip->ldinfo_dataorg; | |
1043 | vp->dend = vp->dstart + ldip->ldinfo_datasize; | |
1044 | ||
1045 | if (vp->tadj != 0) { | |
1046 | vp->tstart += vp->tadj; | |
1047 | vp->tend += vp->tadj; | |
1048 | } | |
1049 | ||
1050 | /* Unless this is the exec file, | |
1051 | add our sections to the section table for the core target. */ | |
1052 | if (vp != vmap) | |
1053 | { | |
1054 | int count; | |
1055 | struct section_table *stp; | |
1056 | ||
1057 | count = core_ops.to_sections_end - core_ops.to_sections; | |
1058 | count += 2; | |
1059 | core_ops.to_sections = (struct section_table *) | |
1060 | xrealloc (core_ops.to_sections, | |
1061 | sizeof (struct section_table) * count); | |
1062 | core_ops.to_sections_end = core_ops.to_sections + count; | |
1063 | stp = core_ops.to_sections_end - 2; | |
1064 | ||
1065 | /* "Why do we add bfd_section_vma?", I hear you cry. | |
1066 | Well, the start of the section in the file is actually | |
1067 | that far into the section as the struct vmap understands it. | |
1068 | So for text sections, bfd_section_vma tends to be 0x200, | |
1069 | and if vp->tstart is 0xd0002000, then the first byte of | |
1070 | the text section on disk corresponds to address 0xd0002200. */ | |
1071 | stp->bfd = vp->bfd; | |
1072 | stp->sec_ptr = bfd_get_section_by_name (stp->bfd, ".text"); | |
1073 | stp->addr = bfd_section_vma (stp->bfd, stp->sec_ptr) + vp->tstart; | |
1074 | stp->endaddr = bfd_section_vma (stp->bfd, stp->sec_ptr) + vp->tend; | |
1075 | stp++; | |
1076 | ||
1077 | stp->bfd = vp->bfd; | |
1078 | stp->sec_ptr = bfd_get_section_by_name (stp->bfd, ".data"); | |
1079 | stp->addr = bfd_section_vma (stp->bfd, stp->sec_ptr) + vp->dstart; | |
1080 | stp->endaddr = bfd_section_vma (stp->bfd, stp->sec_ptr) + vp->dend; | |
1081 | } | |
1082 | ||
1083 | vmap_symtab (vp, 0, 0); | |
1084 | ||
1085 | add_text_to_loadinfo (ldip->ldinfo_textorg, ldip->ldinfo_dataorg); | |
1086 | } while (ldip->ldinfo_next != 0); | |
1087 | vmap_exec (); | |
1088 | do_cleanups (old); | |
1089 | } | |
41abdfbd JG |
1090 | |
1091 | void | |
1092 | _initialize_exec() | |
1093 | { | |
1094 | ||
1095 | add_com("file", class_files, file_command, | |
1096 | "Use FILE as program to be debugged.\n\ | |
1097 | It is read for its symbols, for getting the contents of pure memory,\n\ | |
1098 | and it is the program executed when you use the `run' command.\n\ | |
1099 | If FILE cannot be found as specified, your execution directory path\n\ | |
1100 | ($PATH) is searched for a command of that name.\n\ | |
1101 | No arg means to have no executable file and no symbols."); | |
1102 | ||
1103 | add_com("exec-file", class_files, exec_file_command, | |
1104 | "Use FILE as program for getting contents of pure memory.\n\ | |
1105 | If FILE cannot be found as specified, your execution directory path\n\ | |
1106 | is searched for a command of that name.\n\ | |
1107 | No arg means have no executable file."); | |
1108 | ||
1109 | add_com("section", class_files, set_section_command, | |
1110 | "Change the base address of section SECTION of the exec file to ADDR.\n\ | |
1111 | This can be used if the exec file does not contain section addresses,\n\ | |
1112 | (such as in the a.out format), or when the addresses specified in the\n\ | |
1113 | file itself are wrong. Each section must be changed separately. The\n\ | |
1114 | ``info files'' command lists all the sections and their addresses."); | |
1115 | ||
1116 | add_target(&exec_ops); | |
1117 | } |