1 /* Execute AIXcoff files, for GDB.
2 Copyright 1988, 1989, 1991, 1992 Free Software Foundation, Inc.
3 Derived from exec.c. Modified by IBM Corporation.
4 Donated by IBM Corporation and Cygnus Support.
6 This file is part of GDB.
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.
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.
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. */
22 /* xcoff-exec - deal with executing XCOFF files. */
26 #include <sys/types.h>
27 #include <sys/param.h>
42 #include "libbfd.h" /* BFD internals (sigh!) FIXME */
43 #include "xcoffsolib.h"
45 /* Prototypes for local functions */
48 file_command
PARAMS ((char *, int));
51 exec_close
PARAMS ((int));
53 struct section_table
*exec_sections
, *exec_sections_end
;
55 #define eq(s0, s1) !strcmp(s0, s1)
57 /* Whether to open exec and core files read-only or read-write. */
61 extern int info_verbose
;
63 bfd
*exec_bfd
; /* needed by core.c */
65 extern char *getenv();
66 extern void child_create_inferior (), child_attach ();
67 extern void add_syms_addr_command ();
68 extern void symbol_file_command ();
69 static void exec_files_info();
70 extern struct objfile
*lookup_objfile_bfd ();
74 * the vmap struct is used to describe the virtual address space of
75 * the target we are manipulating. The first entry is always the "exec"
76 * file. Subsequent entries correspond to other objects that are
77 * mapped into the address space of a process created from the "exec" file.
78 * These are either in response to exec()ing the file, in which case all
79 * shared libraries are loaded, or a "load" system call, followed by the
80 * user's issuance of a "load" command.
83 struct vmap
*nxt
; /* ^ to next in chain */
84 bfd
*bfd
; /* BFD for mappable object library */
85 char *name
; /* ^ to object file name */
86 char *member
; /* ^ to member name */
87 CORE_ADDR tstart
; /* virtual addr where member is mapped */
88 CORE_ADDR tend
; /* virtual upper bound of member */
89 CORE_ADDR tadj
; /* heuristically derived adjustment */
90 CORE_ADDR dstart
; /* virtual address of data start */
91 CORE_ADDR dend
; /* vitrual address of data end */
100 static struct vmap
*vmap
; /* current vmap */
103 struct vmap
*vmap
; /* current vmap */
105 extern struct target_ops exec_ops
;
108 /* exec_close - done with exec file, clean up all resources. */
113 register struct vmap
*vp
, *nxt
;
116 for (nxt
= vmap
; vp
= nxt
; )
120 /* if there is an objfile associated with this bfd,
121 free_objfile() will do proper cleanup of objfile *and* bfd. */
123 if (obj
= lookup_objfile_bfd (vp
->bfd
))
128 free_named_symtabs(vp
->name
);
135 bfd_close (exec_bfd
);
138 if (exec_ops
.to_sections
) {
139 free (exec_ops
.to_sections
);
140 exec_ops
.to_sections
= NULL
;
141 exec_ops
.to_sections_end
= NULL
;
146 * exec_file_command - handle the "exec" command, &c.
149 exec_file_command(filename
, from_tty
)
152 target_preopen(from_tty
);
154 /* Remove any previous exec file. */
155 unpush_target(&exec_ops
);
157 /* Now open and digest the file the user requested, if any. */
160 char *scratch_pathname
;
163 filename
= tilde_expand(filename
);
164 make_cleanup (free
, filename
);
166 scratch_chan
= openp(getenv("PATH"), 1, filename
,
167 write_files
? O_RDWR
: O_RDONLY
, 0,
169 if (scratch_chan
< 0)
170 perror_with_name(filename
);
172 exec_bfd
= bfd_fdopenr(scratch_pathname
, NULL
, scratch_chan
);
174 error("Could not open `%s' as an executable file: %s"
175 , scratch_pathname
, bfd_errmsg(bfd_error
));
177 /* make sure we have an object file */
179 if (!bfd_check_format(exec_bfd
, bfd_object
))
180 error("\"%s\": not in executable format: %s.",
181 scratch_pathname
, bfd_errmsg(bfd_error
));
184 /* setup initial vmap */
186 map_vmap (exec_bfd
, 0);
188 error("Can't find the file sections in `%s': %s",
189 exec_bfd
->filename
, bfd_errmsg(bfd_error
));
191 if (build_section_table (exec_bfd
, &exec_ops
.to_sections
,
192 &exec_ops
.to_sections_end
))
193 error ("Can't find the file sections in `%s': %s",
194 exec_bfd
->filename
, bfd_errmsg (bfd_error
));
196 /* make sure core, if present, matches */
199 push_target(&exec_ops
);
201 /* Tell display code(if any) about the changed file name. */
203 if (exec_file_display_hook
)
204 (*exec_file_display_hook
)(filename
);
207 exec_close(0); /* just in case */
209 printf("No exec file now.\n");
213 /* Set both the exec file and the symbol file, in one command. What a
214 * novelty. Why did GDB go through four major releases before this
218 file_command(arg
, from_tty
)
221 exec_file_command(arg
, from_tty
);
222 symbol_file_command(arg
, from_tty
);
225 /* Locate all mappable sections of a BFD file.
226 table_pp_char is a char * to get it through bfd_map_over_sections;
227 we cast it back to its proper type. */
230 add_to_section_table (abfd
, asect
, table_pp_char
)
235 struct section_table
**table_pp
= (struct section_table
**)table_pp_char
;
238 aflag
= bfd_get_section_flags (abfd
, asect
);
239 /* FIXME, we need to handle BSS segment here...it alloc's but doesn't load */
240 if (!(aflag
& SEC_LOAD
))
242 if (0 == bfd_section_size (abfd
, asect
))
244 (*table_pp
)->bfd
= abfd
;
245 (*table_pp
)->sec_ptr
= asect
;
246 (*table_pp
)->addr
= bfd_section_vma (abfd
, asect
);
247 (*table_pp
)->endaddr
= (*table_pp
)->addr
+ bfd_section_size (abfd
, asect
);
252 build_section_table (some_bfd
, start
, end
)
254 struct section_table
**start
, **end
;
258 count
= bfd_count_sections (some_bfd
);
260 abort(); /* return 1? */
263 *start
= (struct section_table
*) xmalloc (count
* sizeof (**start
));
265 bfd_map_over_sections (some_bfd
, add_to_section_table
, (char *)end
);
266 if (*end
> *start
+ count
)
268 /* We could realloc the table, but it probably loses for most files. */
273 * lookup_symtab_bfd - find if we currently have any symbol tables from bfd
276 lookup_objfile_bfd(bfd
*bfd
) {
277 register struct objfile
*s
;
279 for (s
= object_files
; s
; s
= s
->next
)
287 sex_to_vmap(bfd
*bf
, sec_ptr sex
, struct vmap_and_bfd
*vmap_bfd
)
289 register struct vmap
*vp
, **vpp
;
290 register struct symtab
*syms
;
291 bfd
*arch
= vmap_bfd
->pbfd
;
292 vp
= vmap_bfd
->pvmap
;
294 if ((bfd_get_section_flags(bf
, sex
) & SEC_LOAD
) == 0)
297 if (!strcmp(bfd_section_name(bf
, sex
), ".text")) {
299 vp
->tend
= vp
->tstart
+ bfd_section_size(bf
, sex
);
301 /* When it comes to this adjustment value, in contrast to our previous
302 belief shared objects should behave the same as the main load segment.
303 This is the offset from the beginning of text section to the first
306 vp
->tadj
= sex
->filepos
- bfd_section_vma(bf
, sex
);
309 else if (!strcmp(bfd_section_name(bf
, sex
), ".data")) {
311 vp
->dend
= vp
->dstart
+ bfd_section_size(bf
, sex
);
314 else if (!strcmp(bfd_section_name(bf
, sex
), ".bss")) /* FIXMEmgo */
315 printf ("bss section in exec! Don't know what the heck to do!\n");
318 /* Make a vmap for the BFD "bf", which might be a member of the archive
319 BFD "arch". If we have not yet read in symbols for this file, do so. */
321 map_vmap (bfd
*bf
, bfd
*arch
)
323 struct vmap_and_bfd vmap_bfd
;
324 struct vmap
*vp
, **vpp
;
327 vp
= (void*) xmalloc (sizeof (*vp
));
328 bzero (vp
, sizeof (*vp
));
331 vp
->name
= bfd_get_filename(arch
? arch
: bf
);
332 vp
->member
= arch
? bfd_get_filename(bf
) : "";
334 vmap_bfd
.pbfd
= arch
;
336 bfd_map_over_sections (bf
, sex_to_vmap
, &vmap_bfd
);
338 obj
= lookup_objfile_bfd (bf
);
339 if (exec_bfd
&& !obj
) {
340 obj
= allocate_objfile (bf
, 0);
343 This is only needed
if we want to load shared libraries no matter what
.
344 Since we provide the choice of incremental loading of shared objects now
,
345 we don
't have to load them as default anymore.
347 syms_from_objfile (obj, 0, 0, 0);
351 /* find the end of the list, and append. */
352 for (vpp = &vmap; *vpp; vpp = &(*vpp)->nxt)
358 /* true, if symbol table and minimal symbol table are relocated. */
360 int symtab_relocated = 0;
363 /* vmap_symtab - handle symbol translation on vmapping */
365 vmap_symtab(vp, old_start, vip)
366 register struct vmap *vp;
370 register struct symtab *s;
371 register struct objfile *objfile;
372 register struct minimal_symbol *msymbol;
375 * for each symbol table generated from the vp->bfd
377 ALL_OBJFILES (objfile)
379 for (s = objfile -> symtabs; s != NULL; s = s -> next) {
381 /* skip over if this is not relocatable and doesn't have a line table */
382 if (s
->nonreloc
&& !LINETABLE (s
))
385 /* matching the symbol table's BFD and the *vp's BFD is hairy.
386 exec_file creates a seperate BFD for possibly the
387 same file as symbol_file.FIXME ALL THIS MUST BE RECTIFIED. */
389 if (objfile
->obfd
== vp
->bfd
) {
390 /* if they match, we luck out. */
392 } else if (vp
->member
[0]) {
393 /* no match, and member present, not this one. */
400 * no match, and no member. need to be sure.
402 io
= bfd_cache_lookup(objfile
->obfd
);
404 fatal("cannot find BFD's iostream for sym");
406 * see if we are referring to the same file
408 if (fstat(fileno(io
), &si
) < 0)
409 fatal("cannot fstat BFD for sym");
411 if (vip
&& (si
.st_dev
!= vip
->st_dev
412 || si
.st_ino
!= vip
->st_ino
))
416 if (vp
->tstart
!= old_start
) {
418 /* Once we find a relocation base address for one of the symtabs
419 in this objfile, it will be the same for all symtabs in this
420 objfile. Clean this algorithm. FIXME. */
422 for (; s
; s
= s
->next
)
423 if (!s
->nonreloc
|| LINETABLE(s
))
424 vmap_symtab_1(s
, vp
, old_start
);
430 if (vp
->tstart
!= old_start
) {
431 ALL_MSYMBOLS (objfile
, msymbol
)
432 if (msymbol
->address
< TEXT_SEGMENT_BASE
)
433 msymbol
-> address
+= vp
->tstart
- old_start
;
435 /* breakpoints need to be relocated as well. */
436 fixup_breakpoints (0, TEXT_SEGMENT_BASE
, vp
->tstart
- old_start
);
439 symtab_relocated
= 1;
443 vmap_symtab_1(s
, vp
, old_start
)
444 register struct symtab
*s
;
445 register struct vmap
*vp
;
450 register struct linetable
*l
;
451 struct blockvector
*bv
;
452 register struct block
*b
;
454 register ulong reloc
, dreloc
;
456 if ((reloc
= vp
->tstart
- old_start
) == 0)
459 dreloc
= vp
->dstart
; /* data relocation */
462 * The line table must be relocated. This is only present for
463 * .text sections, so only vp->text type maps need be considered.
468 for (i
= 0; i
< len
; i
++)
469 l
->item
[i
].pc
+= reloc
;
472 /* if this symbol table is not relocatable, only line table should
473 be relocated and the rest ignored. */
478 len
= BLOCKVECTOR_NBLOCKS(bv
);
480 for (i
= 0; i
< len
; i
++) {
481 b
= BLOCKVECTOR_BLOCK(bv
, i
);
483 BLOCK_START(b
) += reloc
;
484 BLOCK_END(b
) += reloc
;
486 blen
= BLOCK_NSYMS(b
);
487 for (j
= 0; j
< blen
; j
++) {
488 register struct symbol
*sym
;
490 sym
= BLOCK_SYM(b
, j
);
491 switch (SYMBOL_NAMESPACE(sym
)) {
492 case STRUCT_NAMESPACE
:
493 case UNDEF_NAMESPACE
:
496 case LABEL_NAMESPACE
:
501 switch (SYMBOL_CLASS(sym
)) {
503 case LOC_CONST_BYTES
:
517 SYMBOL_VALUE_ADDRESS(sym
) += reloc
;
521 SYMBOL_VALUE_ADDRESS(sym
) += dreloc
;
528 fatal("botched symbol class %x"
529 , SYMBOL_CLASS(sym
));
537 * add_vmap - add a new vmap entry based on ldinfo() information
540 register struct ld_info
*ldi
; {
542 register char *mem
, *objname
;
544 /* This ldi structure was allocated using alloca() in
545 aixcoff_relocate_symtab(). Now we need to have persistent object
546 and member names, so we should save them. */
548 mem
= ldi
->ldinfo_filename
+ strlen(ldi
->ldinfo_filename
) + 1;
549 mem
= savestring (mem
, strlen (mem
));
550 objname
= savestring (ldi
->ldinfo_filename
, strlen (ldi
->ldinfo_filename
));
552 bfd
= bfd_fdopenr(objname
, NULL
, ldi
->ldinfo_fd
);
554 error("Could not open `%s' as an executable file: %s",
555 objname
, bfd_errmsg(bfd_error
));
558 /* make sure we have an object file */
560 if (bfd_check_format(bfd
, bfd_object
))
563 else if (bfd_check_format(bfd
, bfd_archive
)) {
566 * FIXME??? am I tossing BFDs? bfd?
568 while (last
= bfd_openr_next_archived_file(bfd
, last
))
569 if (eq(mem
, last
->filename
))
574 /* FIXME -- should be error */
575 warning("\"%s\": member \"%s\" missing.", bfd
->filename
, mem
);
579 if (!bfd_check_format(last
, bfd_object
)) {
580 bfd_close(last
); /* XXX??? */
584 map_vmap (last
, bfd
);
589 /* FIXME -- should be error */
590 warning("\"%s\": not in executable format: %s."
591 , objname
, bfd_errmsg(bfd_error
));
597 /* As well as symbol tables, exec_sections need relocation. After
598 the inferior process' termination, there will be a relocated symbol
599 table exist with no corresponding inferior process. At that time, we
600 need to use `exec' bfd, rather than the inferior process's memory space
603 `exec_sections' need to be relocated only once, as long as the exec
604 file remains unchanged.
609 if (execbfd
== exec_bfd
)
614 /* First exec section is `.text', second is `.data'. If this is changed,
615 then this routine will choke. */
617 if (!vmap
|| !exec_ops
.to_sections
||
618 strcmp (exec_ops
.to_sections
[0].sec_ptr
->name
, ".text") ||
619 strcmp (exec_ops
.to_sections
[1].sec_ptr
->name
, ".data"))
621 fatal ("aix: Improper exec_ops sections.");
623 exec_ops
.to_sections
[0].addr
+= vmap
->tstart
;
624 exec_ops
.to_sections
[0].endaddr
+= vmap
->tstart
;
625 exec_ops
.to_sections
[1].addr
+= vmap
->dstart
;
626 exec_ops
.to_sections
[1].endaddr
+= vmap
->dstart
;
631 text_adjustment (abfd
)
635 static int adjustment
;
638 if (exec_bfd
== execbfd
)
641 sect
= bfd_get_section_by_name (abfd
, ".text");
643 adjustment
= sect
->filepos
- sect
->vma
;
645 adjustment
= 0x200; /* just a wild assumption */
652 * vmap_ldinfo - update VMAP info with ldinfo() information
655 * ldi - ^ to ldinfo() results.
658 register struct ld_info
*ldi
;
661 register struct vmap
*vp
;
662 register got_one
, retried
;
666 * for each *ldi, see if we have a corresponding *vp
667 * if so, update the mapping, and symbol table.
668 * if not, add an entry and symbol table.
671 char *name
= ldi
->ldinfo_filename
;
672 char *memb
= name
+ strlen(name
) + 1;
676 if (fstat(ldi
->ldinfo_fd
, &ii
) < 0)
677 fatal("cannot fstat(%d) on %s"
681 for (got_one
= 0, vp
= vmap
; vp
; vp
= vp
->nxt
) {
684 /* First try to find a `vp', which is the same as in ldinfo.
685 If not the same, just continue and grep the next `vp'. If same,
686 relocate its tstart, tend, dstart, dend values. If no such `vp'
687 found, get out of this for loop, add this ldi entry as a new vmap
688 (add_vmap) and come back, fins its `vp' and so on... */
690 /* The filenames are not always sufficient to match on. */
692 if ((name
[0] == "/" && !eq(name
, vp
->name
))
693 || (memb
[0] && !eq(memb
, vp
->member
)))
696 io
= bfd_cache_lookup(vp
->bfd
); /* totally opaque! */
698 fatal("cannot find BFD's iostream for %s", vp
->name
);
700 /* see if we are referring to the same file */
702 if (fstat(fileno(io
), &vi
) < 0)
703 fatal("cannot fstat BFD for %s", vp
->name
);
705 if (ii
.st_dev
!= vi
.st_dev
|| ii
.st_ino
!= vi
.st_ino
)
709 close(ldi
->ldinfo_fd
);
713 /* found a corresponding VMAP. remap! */
716 vp
->tstart
= ldi
->ldinfo_textorg
;
717 vp
->tend
= vp
->tstart
+ ldi
->ldinfo_textsize
;
718 vp
->dstart
= ldi
->ldinfo_dataorg
;
719 vp
->dend
= vp
->dstart
+ ldi
->ldinfo_datasize
;
722 vp
->tstart
+= vp
->tadj
;
723 vp
->tend
+= vp
->tadj
;
726 /* relocate symbol table(s). */
727 vmap_symtab(vp
, ostart
, &vi
);
729 /* there may be more, so we don't break out of the loop. */
732 /* if there was no matching *vp, we must perforce create the sucker(s) */
733 if (!got_one
&& !retried
) {
738 } while (ldi
->ldinfo_next
739 && (ldi
= (void *) (ldi
->ldinfo_next
+ (char *) ldi
)));
744 * vmap_inferior - print VMAP info for inferior
748 if (inferior_pid
== 0)
749 return 0; /* normal processing */
755 /* Read or write the exec file.
757 Args are address within exec file, address within gdb address-space,
758 length, and a flag indicating whether to read or write.
762 0: We cannot handle this address and length.
763 > 0: We have handled N bytes starting at this address.
764 (If N == length, we did it all.) We might be able
765 to handle more bytes beyond this length, but no
767 < 0: We cannot handle this address, but if somebody
768 else handles (-N) bytes, we can start from there.
770 The same routine is used to handle both core and exec files;
771 we just tail-call it with more arguments to select between them. */
774 xfer_memory (memaddr
, myaddr
, len
, write
, target
)
779 struct target_ops
*target
;
782 struct section_table
*p
;
783 CORE_ADDR nextsectaddr
, memend
;
784 boolean (*xfer_fn
) PARAMS ((bfd
*, sec_ptr
, PTR
, file_ptr
, bfd_size_type
));
789 memend
= memaddr
+ len
;
790 xfer_fn
= write
? bfd_set_section_contents
: bfd_get_section_contents
;
791 nextsectaddr
= memend
;
793 for (p
= target
->to_sections
; p
< target
->to_sections_end
; p
++)
795 if (p
->addr
<= memaddr
)
796 if (p
->endaddr
>= memend
)
798 /* Entire transfer is within this section. */
799 res
= xfer_fn (p
->bfd
, p
->sec_ptr
, myaddr
, memaddr
- p
->addr
, len
);
800 return (res
!= false)? len
: 0;
802 else if (p
->endaddr
<= memaddr
)
804 /* This section ends before the transfer starts. */
809 /* This section overlaps the transfer. Just do half. */
810 len
= p
->endaddr
- memaddr
;
811 res
= xfer_fn (p
->bfd
, p
->sec_ptr
, myaddr
, memaddr
- p
->addr
, len
);
812 return (res
!= false)? len
: 0;
814 else if (p
->addr
< nextsectaddr
)
815 nextsectaddr
= p
->addr
;
818 if (nextsectaddr
>= memend
)
819 return 0; /* We can't help */
821 return - (nextsectaddr
- memaddr
); /* Next boundary where we can help */
825 print_section_info (t
, abfd
)
826 struct target_ops
*t
;
829 struct section_table
*p
;
831 printf_filtered ("\t`%s', ", bfd_get_filename(abfd
));
833 printf_filtered ("file type %s.\n", bfd_get_target(abfd
));
835 for (p
= t
->to_sections
; p
< t
->to_sections_end
; p
++) {
836 printf_filtered ("\t%s", local_hex_string_custom (p
->addr
, "08"));
837 printf_filtered (" - %s", local_hex_string_custom (p
->endaddr
, "08"));
839 printf_filtered (" @ %s",
840 local_hex_string_custom (p
->sec_ptr
->filepos
, "08"));
841 printf_filtered (" is %s", bfd_section_name (p
->bfd
, p
->sec_ptr
));
842 if (p
->bfd
!= abfd
) {
843 printf_filtered (" in %s", bfd_get_filename (p
->bfd
));
845 printf_filtered ("\n");
852 struct target_ops
*t
;
854 register struct vmap
*vp
= vmap
;
856 print_section_info (t
, exec_bfd
);
861 printf("\tMapping info for file `%s'.\n", vp
->name
);
863 printf("\t %8.8s %8.8s %8.8s %8.8s %8.8s %s\n",
864 "tstart", "tend", "dstart", "dend", "section", "file(member)");
866 for (; vp
; vp
= vp
->nxt
)
867 printf("\t0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x %s%s%s%s\n",
873 *vp
->member
? "(" : "",
875 *vp
->member
? ")" : "");
879 /* Damon's implementation of set_section_command! It is based on the sex member
880 (which is a section pointer from vmap) of vmap.
881 We will not have multiple vmap entries (one for each section), rather transmit
882 text and data base offsets and fix them at the same time. Elimination of sex
883 entry in vmap make this function obsolute, use the one from exec.c.
884 Need further testing!! FIXMEmgo. */
887 set_section_command(args
, from_tty
)
890 register struct vmap
*vp
= vmap
;
893 unsigned long secaddr
;
898 error("Must specify section name and its virtual address");
900 /* Parse out section name */
901 for (secname
= args
; !isspace(*args
); args
++)
903 seclen
= args
- secname
;
905 /* Parse out new virtual address */
906 secaddr
= parse_and_eval_address(args
);
908 for (vp
= vmap
; vp
; vp
= vp
->nxt
) {
910 , bfd_section_name(vp
->bfd
, vp
->sex
), seclen
)
911 && bfd_section_name(vp
->bfd
, vp
->sex
)[seclen
] == '\0') {
912 offset
= secaddr
- vp
->tstart
;
913 vp
->tstart
+= offset
;
920 if (seclen
>= sizeof(secprint
))
921 seclen
= sizeof(secprint
) - 1;
922 strncpy(secprint
, secname
, seclen
);
923 secprint
[seclen
] = '\0';
924 error("Section %s not found", secprint
);
928 set_section_command (args
, from_tty
)
932 struct section_table
*p
;
935 unsigned long secaddr
;
940 error ("Must specify section name and its virtual address");
942 /* Parse out section name */
943 for (secname
= args
; !isspace(*args
); args
++) ;
944 seclen
= args
- secname
;
946 /* Parse out new virtual address */
947 secaddr
= parse_and_eval_address (args
);
949 for (p
= exec_ops
.to_sections
; p
< exec_ops
.to_sections_end
; p
++) {
950 if (!strncmp (secname
, bfd_section_name (exec_bfd
, p
->sec_ptr
), seclen
)
951 && bfd_section_name (exec_bfd
, p
->sec_ptr
)[seclen
] == '\0') {
952 offset
= secaddr
- p
->addr
;
954 p
->endaddr
+= offset
;
956 exec_files_info(&exec_ops
);
960 if (seclen
>= sizeof (secprint
))
961 seclen
= sizeof (secprint
) - 1;
962 strncpy (secprint
, secname
, seclen
);
963 secprint
[seclen
] = '\0';
964 error ("Section %s not found", secprint
);
969 struct target_ops exec_ops
= {
970 "exec", "Local exec file",
971 "Use an executable file as a target.\n\
972 Specify the filename of the executable file.",
973 exec_file_command
, exec_close
, /* open, close */
974 child_attach
, 0, 0, 0, /* attach, detach, resume, wait, */
975 0, 0, /* fetch_registers, store_registers, */
976 0, 0, 0, /* prepare_to_store, conv_to, conv_from, */
977 xfer_memory
, exec_files_info
,
978 0, 0, /* insert_breakpoint, remove_breakpoint, */
979 0, 0, 0, 0, 0, /* terminal stuff */
980 0, 0, /* kill, load */
982 child_create_inferior
,
983 0, /* mourn_inferior */
984 file_stratum
, 0, /* next */
985 0, 1, 0, 0, 0, /* all mem, mem, stack, regs, exec */
986 0, 0, /* section pointers */
987 OPS_MAGIC
, /* Always the last thing */
995 add_com("file", class_files
, file_command
,
996 "Use FILE as program to be debugged.\n\
997 It is read for its symbols, for getting the contents of pure memory,\n\
998 and it is the program executed when you use the `run' command.\n\
999 If FILE cannot be found as specified, your execution directory path\n\
1000 ($PATH) is searched for a command of that name.\n\
1001 No arg means to have no executable file and no symbols.");
1003 add_com("exec-file", class_files
, exec_file_command
,
1004 "Use FILE as program for getting contents of pure memory.\n\
1005 If FILE cannot be found as specified, your execution directory path\n\
1006 is searched for a command of that name.\n\
1007 No arg means have no executable file.");
1009 add_com("section", class_files
, set_section_command
,
1010 "Change the base address of section SECTION of the exec file to ADDR.\n\
1011 This can be used if the exec file does not contain section addresses,\n\
1012 (such as in the a.out format), or when the addresses specified in the\n\
1013 file itself are wrong. Each section must be changed separately. The\n\
1014 ``info files'' command lists all the sections and their addresses.");
1016 add_target(&exec_ops
);