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[binutils.git] / bfd / rs6000-core.c
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1 /* IBM RS/6000 "XCOFF" back-end for BFD.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2000,
3 2001, 2002, 2004, 2006, 2007, 2008
4 Free Software Foundation, Inc.
5 Written by Metin G. Ozisik, Mimi Phuong-Thao Vo, and John Gilmore.
6 Archive support from Damon A. Permezel.
7 Contributed by IBM Corporation and Cygnus Support.
9 This file is part of BFD, the Binary File Descriptor library.
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 3 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
24 MA 02110-1301, USA. */
27 /* This port currently only handles reading object files, except when
28 compiled on an RS/6000 host. -- no archive support, no core files.
29 In all cases, it does not support writing.
31 This is in a separate file from coff-rs6000.c, because it includes
32 system include files that conflict with coff/rs6000.h. */
34 /* Internalcoff.h and coffcode.h modify themselves based on this flag. */
35 #define RS6000COFF_C 1
37 /* The AIX 4.1 kernel is obviously compiled with -D_LONG_LONG, so
38 we have to define _LONG_LONG for older versions of gcc to get the
39 proper alignments in the user structure. */
40 #if defined(_AIX41) && !defined(_LONG_LONG)
41 #define _LONG_LONG
42 #endif
44 #include "sysdep.h"
45 #include "bfd.h"
46 #include "libbfd.h"
48 #ifdef AIX_CORE
50 /* AOUTHDR is defined by the above. We need another defn of it, from the
51 system include files. Punt the old one and get us a new name for the
52 typedef in the system include files. */
53 #ifdef AOUTHDR
54 #undef AOUTHDR
55 #endif
56 #define AOUTHDR second_AOUTHDR
58 #undef SCNHDR
60 /* ------------------------------------------------------------------------ */
61 /* Support for core file stuff.. */
62 /* ------------------------------------------------------------------------ */
64 #include <sys/user.h>
65 #define __LDINFO_PTRACE32__ /* for __ld_info32 */
66 #define __LDINFO_PTRACE64__ /* for __ld_info64 */
67 #include <sys/ldr.h>
68 #include <sys/core.h>
69 #include <sys/systemcfg.h>
71 /* Borrowed from <sys/inttypes.h> on recent AIX versions. */
72 typedef unsigned long ptr_to_uint;
74 #define core_hdr(bfd) ((CoreHdr *) bfd->tdata.any)
76 /* AIX 4.1 changed the names and locations of a few items in the core file.
77 AIX 4.3 defined an entirely new structure, core_dumpx, but kept support for
78 the previous 4.1 structure, core_dump.
80 AIX_CORE_DUMPX_CORE is defined (by configure) on AIX 4.3+, and
81 CORE_VERSION_1 is defined (by AIX core.h) as 2 on AIX 4.3+ and as 1 on AIX
82 4.1 and 4.2. AIX pre-4.1 (aka 3.x) either doesn't define CORE_VERSION_1
83 or else defines it as 0. */
85 #if defined(CORE_VERSION_1) && !CORE_VERSION_1
86 # undef CORE_VERSION_1
87 #endif
89 /* The following union and macros allow this module to compile on all AIX
90 versions and to handle both core_dumpx and core_dump on 4.3+. CNEW_*()
91 and COLD_*() macros respectively retrieve core_dumpx and core_dump
92 values. */
94 /* Union of 32-bit and 64-bit versions of ld_info. */
96 typedef union {
97 #ifdef __ld_info32
98 struct __ld_info32 l32;
99 struct __ld_info64 l64;
100 #else
101 struct ld_info l32;
102 struct ld_info l64;
103 #endif
104 } LdInfo;
106 /* Union of old and new core dump structures. */
108 typedef union {
109 #ifdef AIX_CORE_DUMPX_CORE
110 struct core_dumpx new; /* new AIX 4.3+ core dump */
111 #else
112 struct core_dump new; /* for simpler coding */
113 #endif
114 struct core_dump old; /* old AIX 4.2- core dump, still used on
115 4.3+ with appropriate SMIT config */
116 } CoreHdr;
118 /* Union of old and new vm_info structures. */
120 #ifdef CORE_VERSION_1
121 typedef union {
122 #ifdef AIX_CORE_DUMPX_CORE
123 struct vm_infox new;
124 #else
125 struct vm_info new;
126 #endif
127 struct vm_info old;
128 } VmInfo;
129 #endif
131 /* Return whether CoreHdr C is in new or old format. */
133 #ifdef AIX_CORE_DUMPX_CORE
134 # define CORE_NEW(c) (!(c).old.c_entries)
135 #else
136 # define CORE_NEW(c) 0
137 #endif
139 /* Return whether CoreHdr C usese core_dumpxx structure.
141 FIXME: the core file format version number used here definitely indicates
142 that struct core_dumpxx should be used to represent the core file header,
143 but that may not be the only such format version number. */
145 #ifdef AIX_5_CORE
146 # define CORE_DUMPXX_VERSION 267312562
147 # define CNEW_IS_CORE_DUMPXX(c) ((c).new.c_version == CORE_DUMPXX_VERSION)
148 #else
149 # define CNEW_IS_CORE_DUMPXX(c) 0
150 #endif
152 /* Return the c_stackorg field from struct core_dumpx C. */
154 #ifdef AIX_CORE_DUMPX_CORE
155 # define CNEW_STACKORG(c) (c).c_stackorg
156 #else
157 # define CNEW_STACKORG(c) 0
158 #endif
160 /* Return the offset to the loader region from struct core_dump C. */
162 #ifdef AIX_CORE_DUMPX_CORE
163 # define CNEW_LOADER(c) (c).c_loader
164 #else
165 # define CNEW_LOADER(c) 0
166 #endif
168 /* Return the offset to the loader region from struct core_dump C. */
170 #define COLD_LOADER(c) (c).c_tab
172 /* Return the c_lsize field from struct core_dumpx C. */
174 #ifdef AIX_CORE_DUMPX_CORE
175 # define CNEW_LSIZE(c) (c).c_lsize
176 #else
177 # define CNEW_LSIZE(c) 0
178 #endif
180 /* Return the c_dataorg field from struct core_dumpx C. */
182 #ifdef AIX_CORE_DUMPX_CORE
183 # define CNEW_DATAORG(c) (c).c_dataorg
184 #else
185 # define CNEW_DATAORG(c) 0
186 #endif
188 /* Return the c_datasize field from struct core_dumpx C. */
190 #ifdef AIX_CORE_DUMPX_CORE
191 # define CNEW_DATASIZE(c) (c).c_datasize
192 #else
193 # define CNEW_DATASIZE(c) 0
194 #endif
196 /* Return the c_impl field from struct core_dumpx C. */
198 #if defined (HAVE_ST_C_IMPL) || defined (AIX_5_CORE)
199 # define CNEW_IMPL(c) (c).c_impl
200 #else
201 # define CNEW_IMPL(c) 0
202 #endif
204 /* Return the command string from struct core_dumpx C. */
206 #ifdef AIX_CORE_DUMPX_CORE
207 # define CNEW_COMM(c) (c).c_u.U_proc.pi_comm
208 #else
209 # define CNEW_COMM(c) 0
210 #endif
212 /* Return the command string from struct core_dump C. */
214 #ifdef CORE_VERSION_1
215 # define COLD_COMM(c) (c).c_u.U_comm
216 #else
217 # define COLD_COMM(c) (c).c_u.u_comm
218 #endif
220 /* Return the struct __context64 pointer from struct core_dumpx C. */
222 #ifdef AIX_CORE_DUMPX_CORE
223 # define CNEW_CONTEXT64(c) (c).c_flt.hctx.r64
224 #else
225 # define CNEW_CONTEXT64(c) c
226 #endif
228 /* Return the struct mstsave pointer from struct core_dumpx C. */
230 #ifdef AIX_CORE_DUMPX_CORE
231 # define CNEW_MSTSAVE(c) (c).c_flt.hctx.r32
232 #else
233 # define CNEW_MSTSAVE(c) c
234 #endif
236 /* Return the struct mstsave pointer from struct core_dump C. */
238 #ifdef CORE_VERSION_1
239 # define COLD_MSTSAVE(c) (c).c_mst
240 #else
241 # define COLD_MSTSAVE(c) (c).c_u.u_save
242 #endif
244 /* Return whether struct core_dumpx is from a 64-bit process. */
246 #ifdef AIX_CORE_DUMPX_CORE
247 # define CNEW_PROC64(c) IS_PROC64(&(c).c_u.U_proc)
248 #else
249 # define CNEW_PROC64(c) 0
250 #endif
252 /* Magic end-of-stack addresses for old core dumps. This is _very_ fragile,
253 but I don't see any easy way to get that info right now. */
255 #ifdef CORE_VERSION_1
256 # define COLD_STACKEND 0x2ff23000
257 #else
258 # define COLD_STACKEND 0x2ff80000
259 #endif
261 /* Size of the leading portion that old and new core dump structures have in
262 common. */
263 #define CORE_COMMONSZ ((int) &((struct core_dump *) 0)->c_entries \
264 + sizeof (((struct core_dump *) 0)->c_entries))
266 /* Define prototypes for certain functions, to avoid a compiler warning
267 saying that they are missing. */
269 const bfd_target * rs6000coff_core_p (bfd *abfd);
270 bfd_boolean rs6000coff_core_file_matches_executable_p (bfd *core_bfd,
271 bfd *exec_bfd);
272 char * rs6000coff_core_file_failing_command (bfd *abfd);
273 int rs6000coff_core_file_failing_signal (bfd *abfd);
275 /* Try to read into CORE the header from the core file associated with ABFD.
276 Return success. */
278 static bfd_boolean
279 read_hdr (bfd *abfd, CoreHdr *core)
281 bfd_size_type size;
283 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
284 return FALSE;
286 /* Read the leading portion that old and new core dump structures have in
287 common. */
288 size = CORE_COMMONSZ;
289 if (bfd_bread (core, size, abfd) != size)
290 return FALSE;
292 /* Read the trailing portion of the structure. */
293 if (CORE_NEW (*core))
294 size = sizeof (core->new);
295 else
296 size = sizeof (core->old);
297 size -= CORE_COMMONSZ;
298 return bfd_bread ((char *) core + CORE_COMMONSZ, size, abfd) == size;
301 static asection *
302 make_bfd_asection (bfd *abfd, const char *name, flagword flags,
303 bfd_size_type size, bfd_vma vma, file_ptr filepos)
305 asection *asect;
307 asect = bfd_make_section_anyway_with_flags (abfd, name, flags);
308 if (!asect)
309 return NULL;
311 asect->size = size;
312 asect->vma = vma;
313 asect->filepos = filepos;
314 asect->alignment_power = 8;
316 return asect;
319 /* Decide if a given bfd represents a `core' file or not. There really is no
320 magic number or anything like, in rs6000coff. */
322 const bfd_target *
323 rs6000coff_core_p (bfd *abfd)
325 CoreHdr core;
326 struct stat statbuf;
327 bfd_size_type size;
328 char *tmpptr;
330 /* Values from new and old core structures. */
331 int c_flag;
332 file_ptr c_stack, c_regoff, c_loader;
333 bfd_size_type c_size, c_regsize, c_lsize;
334 bfd_vma c_stackend;
335 void *c_regptr;
336 int proc64;
338 if (!read_hdr (abfd, &core))
340 if (bfd_get_error () != bfd_error_system_call)
341 bfd_set_error (bfd_error_wrong_format);
342 return NULL;
345 /* This isn't the right handler for 64-bit core files on AIX 5.x. */
346 if (CORE_NEW (core) && CNEW_IS_CORE_DUMPXX (core))
348 bfd_set_error (bfd_error_wrong_format);
349 return NULL;
352 /* Copy fields from new or old core structure. */
353 if (CORE_NEW (core))
355 c_flag = core.new.c_flag;
356 c_stack = (file_ptr) core.new.c_stack;
357 c_size = core.new.c_size;
358 c_stackend = CNEW_STACKORG (core.new) + c_size;
359 c_lsize = CNEW_LSIZE (core.new);
360 c_loader = CNEW_LOADER (core.new);
361 proc64 = CNEW_PROC64 (core.new);
363 else
365 c_flag = core.old.c_flag;
366 c_stack = (file_ptr) (ptr_to_uint) core.old.c_stack;
367 c_size = core.old.c_size;
368 c_stackend = COLD_STACKEND;
369 c_lsize = 0x7ffffff;
370 c_loader = (file_ptr) (ptr_to_uint) COLD_LOADER (core.old);
371 proc64 = 0;
374 if (proc64)
376 c_regsize = sizeof (CNEW_CONTEXT64 (core.new));
377 c_regptr = &CNEW_CONTEXT64 (core.new);
379 else if (CORE_NEW (core))
381 c_regsize = sizeof (CNEW_MSTSAVE (core.new));
382 c_regptr = &CNEW_MSTSAVE (core.new);
384 else
386 c_regsize = sizeof (COLD_MSTSAVE (core.old));
387 c_regptr = &COLD_MSTSAVE (core.old);
389 c_regoff = (char *) c_regptr - (char *) &core;
391 if (bfd_stat (abfd, &statbuf) < 0)
393 bfd_set_error (bfd_error_system_call);
394 return NULL;
397 /* If the core file ulimit is too small, the system will first
398 omit the data segment, then omit the stack, then decline to
399 dump core altogether (as far as I know UBLOCK_VALID and LE_VALID
400 are always set) (this is based on experimentation on AIX 3.2).
401 Now, the thing is that GDB users will be surprised
402 if segments just silently don't appear (well, maybe they would
403 think to check "info files", I don't know).
405 For the data segment, we have no choice but to keep going if it's
406 not there, since the default behavior is not to dump it (regardless
407 of the ulimit, it's based on SA_FULLDUMP). But for the stack segment,
408 if it's not there, we refuse to have anything to do with this core
409 file. The usefulness of a core dump without a stack segment is pretty
410 limited anyway. */
412 if (!(c_flag & UBLOCK_VALID)
413 || !(c_flag & LE_VALID))
415 bfd_set_error (bfd_error_wrong_format);
416 return NULL;
419 if (!(c_flag & USTACK_VALID))
421 bfd_set_error (bfd_error_file_truncated);
422 return NULL;
425 /* Don't check the core file size for a full core, AIX 4.1 includes
426 additional shared library sections in a full core. */
427 if (!(c_flag & (FULL_CORE | CORE_TRUNC)))
429 /* If the size is wrong, it means we're misinterpreting something. */
430 if (c_stack + (file_ptr) c_size != statbuf.st_size)
432 bfd_set_error (bfd_error_wrong_format);
433 return NULL;
437 /* Sanity check on the c_tab field. */
438 if (!CORE_NEW (core) && (c_loader < (file_ptr) sizeof core.old ||
439 c_loader >= statbuf.st_size ||
440 c_loader >= c_stack))
442 bfd_set_error (bfd_error_wrong_format);
443 return NULL;
446 /* Issue warning if the core file was truncated during writing. */
447 if (c_flag & CORE_TRUNC)
448 (*_bfd_error_handler) (_("%s: warning core file truncated"),
449 bfd_get_filename (abfd));
451 /* Allocate core file header. */
452 size = CORE_NEW (core) ? sizeof (core.new) : sizeof (core.old);
453 tmpptr = (char *) bfd_zalloc (abfd, (bfd_size_type) size);
454 if (!tmpptr)
455 return NULL;
457 /* Copy core file header. */
458 memcpy (tmpptr, &core, size);
459 set_tdata (abfd, tmpptr);
461 /* Set architecture. */
462 if (CORE_NEW (core))
464 enum bfd_architecture arch;
465 unsigned long mach;
467 switch (CNEW_IMPL (core.new))
469 case POWER_RS1:
470 case POWER_RSC:
471 case POWER_RS2:
472 arch = bfd_arch_rs6000;
473 mach = bfd_mach_rs6k;
474 break;
475 default:
476 arch = bfd_arch_powerpc;
477 mach = bfd_mach_ppc;
478 break;
480 bfd_default_set_arch_mach (abfd, arch, mach);
483 /* .stack section. */
484 if (!make_bfd_asection (abfd, ".stack",
485 SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
486 c_size, c_stackend - c_size, c_stack))
487 goto fail;
489 /* .reg section for all registers. */
490 if (!make_bfd_asection (abfd, ".reg",
491 SEC_HAS_CONTENTS,
492 c_regsize, (bfd_vma) 0, c_regoff))
493 goto fail;
495 /* .ldinfo section.
496 To actually find out how long this section is in this particular
497 core dump would require going down the whole list of struct ld_info's.
498 See if we can just fake it. */
499 if (!make_bfd_asection (abfd, ".ldinfo",
500 SEC_HAS_CONTENTS,
501 c_lsize, (bfd_vma) 0, c_loader))
502 goto fail;
504 #ifndef CORE_VERSION_1
505 /* .data section if present.
506 AIX 3 dumps the complete data section and sets FULL_CORE if the
507 ulimit is large enough, otherwise the data section is omitted.
508 AIX 4 sets FULL_CORE even if the core file is truncated, we have
509 to examine core.c_datasize below to find out the actual size of
510 the .data section. */
511 if (c_flag & FULL_CORE)
513 if (!make_bfd_asection (abfd, ".data",
514 SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
515 (bfd_size_type) core.old.c_u.u_dsize,
516 (bfd_vma)
517 CDATA_ADDR (core.old.c_u.u_dsize),
518 c_stack + c_size))
519 goto fail;
521 #endif
523 #ifdef CORE_VERSION_1
524 /* AIX 4 adds data sections from loaded objects to the core file,
525 which can be found by examining ldinfo, and anonymously mmapped
526 regions. */
528 LdInfo ldinfo;
529 bfd_size_type ldi_datasize;
530 file_ptr ldi_core;
531 uint ldi_next;
532 bfd_vma ldi_dataorg;
534 /* Fields from new and old core structures. */
535 bfd_size_type c_datasize, c_vmregions;
536 file_ptr c_data, c_vmm;
538 if (CORE_NEW (core))
540 c_datasize = CNEW_DATASIZE (core.new);
541 c_data = (file_ptr) core.new.c_data;
542 c_vmregions = core.new.c_vmregions;
543 c_vmm = (file_ptr) core.new.c_vmm;
545 else
547 c_datasize = core.old.c_datasize;
548 c_data = (file_ptr) (ptr_to_uint) core.old.c_data;
549 c_vmregions = core.old.c_vmregions;
550 c_vmm = (file_ptr) (ptr_to_uint) core.old.c_vmm;
553 /* .data section from executable. */
554 if (c_datasize)
556 if (!make_bfd_asection (abfd, ".data",
557 SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
558 c_datasize,
559 (bfd_vma) CDATA_ADDR (c_datasize),
560 c_data))
561 goto fail;
564 /* .data sections from loaded objects. */
565 if (proc64)
566 size = (int) ((LdInfo *) 0)->l64.ldinfo_filename;
567 else
568 size = (int) ((LdInfo *) 0)->l32.ldinfo_filename;
570 while (1)
572 if (bfd_seek (abfd, c_loader, SEEK_SET) != 0)
573 goto fail;
574 if (bfd_bread (&ldinfo, size, abfd) != size)
575 goto fail;
577 if (proc64)
579 ldi_core = ldinfo.l64.ldinfo_core;
580 ldi_datasize = ldinfo.l64.ldinfo_datasize;
581 ldi_dataorg = (bfd_vma) ldinfo.l64.ldinfo_dataorg;
582 ldi_next = ldinfo.l64.ldinfo_next;
584 else
586 ldi_core = ldinfo.l32.ldinfo_core;
587 ldi_datasize = ldinfo.l32.ldinfo_datasize;
588 ldi_dataorg = (bfd_vma) (long) ldinfo.l32.ldinfo_dataorg;
589 ldi_next = ldinfo.l32.ldinfo_next;
592 if (ldi_core)
593 if (!make_bfd_asection (abfd, ".data",
594 SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
595 ldi_datasize, ldi_dataorg, ldi_core))
596 goto fail;
598 if (ldi_next == 0)
599 break;
600 c_loader += ldi_next;
603 /* .vmdata sections from anonymously mmapped regions. */
604 if (c_vmregions)
606 bfd_size_type i;
608 if (bfd_seek (abfd, c_vmm, SEEK_SET) != 0)
609 goto fail;
611 for (i = 0; i < c_vmregions; i++)
613 VmInfo vminfo;
614 bfd_size_type vminfo_size;
615 file_ptr vminfo_offset;
616 bfd_vma vminfo_addr;
618 size = CORE_NEW (core) ? sizeof (vminfo.new) : sizeof (vminfo.old);
619 if (bfd_bread (&vminfo, size, abfd) != size)
620 goto fail;
622 if (CORE_NEW (core))
624 vminfo_addr = (bfd_vma) vminfo.new.vminfo_addr;
625 vminfo_size = vminfo.new.vminfo_size;
626 vminfo_offset = vminfo.new.vminfo_offset;
628 else
630 vminfo_addr = (bfd_vma) (long) vminfo.old.vminfo_addr;
631 vminfo_size = vminfo.old.vminfo_size;
632 vminfo_offset = vminfo.old.vminfo_offset;
635 if (vminfo_offset)
636 if (!make_bfd_asection (abfd, ".vmdata",
637 SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
638 vminfo_size, vminfo_addr,
639 vminfo_offset))
640 goto fail;
644 #endif
646 return abfd->xvec; /* This is garbage for now. */
648 fail:
649 bfd_release (abfd, abfd->tdata.any);
650 abfd->tdata.any = NULL;
651 bfd_section_list_clear (abfd);
652 return NULL;
655 /* Return `TRUE' if given core is from the given executable. */
657 bfd_boolean
658 rs6000coff_core_file_matches_executable_p (bfd *core_bfd, bfd *exec_bfd)
660 CoreHdr core;
661 bfd_size_type size;
662 char *path, *s;
663 size_t alloc;
664 const char *str1, *str2;
665 bfd_boolean ret;
666 file_ptr c_loader;
668 if (!read_hdr (core_bfd, &core))
669 return FALSE;
671 if (CORE_NEW (core))
672 c_loader = CNEW_LOADER (core.new);
673 else
674 c_loader = (file_ptr) (ptr_to_uint) COLD_LOADER (core.old);
676 if (CORE_NEW (core) && CNEW_PROC64 (core.new))
677 size = (int) ((LdInfo *) 0)->l64.ldinfo_filename;
678 else
679 size = (int) ((LdInfo *) 0)->l32.ldinfo_filename;
681 if (bfd_seek (core_bfd, c_loader + size, SEEK_SET) != 0)
682 return FALSE;
684 alloc = 100;
685 path = bfd_malloc ((bfd_size_type) alloc);
686 if (path == NULL)
687 return FALSE;
688 s = path;
690 while (1)
692 if (bfd_bread (s, (bfd_size_type) 1, core_bfd) != 1)
694 free (path);
695 return FALSE;
697 if (*s == '\0')
698 break;
699 ++s;
700 if (s == path + alloc)
702 char *n;
704 alloc *= 2;
705 n = bfd_realloc (path, (bfd_size_type) alloc);
706 if (n == NULL)
708 free (path);
709 return FALSE;
711 s = n + (path - s);
712 path = n;
716 str1 = strrchr (path, '/');
717 str2 = strrchr (exec_bfd->filename, '/');
719 /* step over character '/' */
720 str1 = str1 != NULL ? str1 + 1 : path;
721 str2 = str2 != NULL ? str2 + 1 : exec_bfd->filename;
723 if (strcmp (str1, str2) == 0)
724 ret = TRUE;
725 else
726 ret = FALSE;
728 free (path);
730 return ret;
733 char *
734 rs6000coff_core_file_failing_command (bfd *abfd)
736 CoreHdr *core = core_hdr (abfd);
737 char *com = CORE_NEW (*core) ?
738 CNEW_COMM (core->new) : COLD_COMM (core->old);
740 if (*com)
741 return com;
742 else
743 return 0;
747 rs6000coff_core_file_failing_signal (bfd *abfd)
749 CoreHdr *core = core_hdr (abfd);
750 return CORE_NEW (*core) ? core->new.c_signo : core->old.c_signo;
753 #endif /* AIX_CORE */