1 /* IBM RS/6000 "XCOFF" back-end for BFD.
2 Copyright 2001, 2002, 2003, 2004
3 Free Software Foundation, Inc.
5 Contributed by Red Hat Inc.
7 This file is part of BFD, the Binary File Descriptor library.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
22 MA 02110-1301, USA. */
31 const bfd_target
*xcoff64_core_p (bfd
*);
32 bfd_boolean
xcoff64_core_file_matches_executable_p (bfd
*, bfd
*);
33 char *xcoff64_core_file_failing_command (bfd
*);
34 int xcoff64_core_file_failing_signal (bfd
*);
36 /* Aix 5.1 system include file. */
38 /* Need to define this macro so struct ld_info64 get included. */
39 #define __LDINFO_PTRACE64__
43 #define core_hdr(abfd) ((struct core_dumpxx *) abfd->tdata.any)
45 #define CHECK_FILE_OFFSET(s, v) \
46 ((bfd_signed_vma)(v) < 0 || (bfd_signed_vma)(v) > (bfd_signed_vma)(s).st_size)
49 xcoff64_core_p (bfd
*abfd
)
51 struct core_dumpxx core
, *new_core_hdr
;
54 struct __ld_info64 ldinfo
;
57 struct vm_infox vminfo
;
58 bfd_target
*return_value
= NULL
;
61 if (bfd_seek (abfd
, 0, SEEK_SET
) != 0)
62 goto xcoff64_core_p_error
;
64 if (sizeof (struct core_dumpxx
)
65 != bfd_bread (&core
, sizeof (struct core_dumpxx
), abfd
))
66 goto xcoff64_core_p_error
;
68 if (bfd_stat (abfd
, &statbuf
) < 0)
69 goto xcoff64_core_p_error
;
72 c_flag has CORE_VERSION_1, Aix 4+
73 c_entries = 0 for Aix 4.3+
74 IS_PROC64 is a macro defined in procinfo.h, test for 64 bit process.
76 We will still be confused if a Aix 4.3 64 bit core file is
77 copied over to a Aix 5 machine.
79 Check file header offsets
81 See rs6000-core.c for comment on size of core
82 If there isn't enough of a real core file, bail. */
84 if ((CORE_VERSION_1
!= (core
.c_flag
& CORE_VERSION_1
))
85 || (0 != core
.c_entries
)
86 || (! (IS_PROC64 (&core
.c_u
.U_proc
)))
87 || ((CHECK_FILE_OFFSET (statbuf
, core
.c_fdsinfox
)))
88 || ((CHECK_FILE_OFFSET (statbuf
, core
.c_loader
)))
89 || ((CHECK_FILE_OFFSET (statbuf
, core
.c_loader
+ core
.c_lsize
)))
90 || ((CHECK_FILE_OFFSET (statbuf
, core
.c_thr
)))
91 || ((CHECK_FILE_OFFSET (statbuf
, core
.c_segregion
)))
92 || ((CHECK_FILE_OFFSET (statbuf
, core
.c_stack
)))
93 || ((CHECK_FILE_OFFSET (statbuf
, core
.c_stack
+ core
.c_size
)))
94 || ((CHECK_FILE_OFFSET (statbuf
, core
.c_data
)))
95 || ((CHECK_FILE_OFFSET (statbuf
, core
.c_data
+ core
.c_datasize
)))
96 || (! (core
.c_flag
& UBLOCK_VALID
))
97 || (! (core
.c_flag
& LE_VALID
)))
98 goto xcoff64_core_p_error
;
100 /* Check for truncated stack or general truncating. */
101 if ((! (core
.c_flag
& USTACK_VALID
))
102 || (core
.c_flag
& CORE_TRUNC
))
104 bfd_set_error (bfd_error_file_truncated
);
109 new_core_hdr
= bfd_zalloc (abfd
, sizeof (struct core_dumpxx
));
110 if (NULL
== new_core_hdr
)
113 memcpy (new_core_hdr
, &core
, sizeof (struct core_dumpxx
));
114 core_hdr(abfd
) = (char *)new_core_hdr
;
116 /* .stack section. */
117 sec
= bfd_make_section_anyway (abfd
, ".stack");
121 sec
->flags
= SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
;
122 sec
->size
= core
.c_size
;
123 sec
->vma
= core
.c_stackorg
;
124 sec
->filepos
= core
.c_stack
;
126 /* .reg section for all registers. */
127 sec
= bfd_make_section_anyway (abfd
, ".reg");
131 sec
->flags
= SEC_HAS_CONTENTS
| SEC_IN_MEMORY
;
132 sec
->size
= sizeof (struct __context64
);
135 sec
->contents
= (bfd_byte
*)&new_core_hdr
->c_flt
.r64
;
138 To actually find out how long this section is in this particular
139 core dump would require going down the whole list of struct
140 ld_info's. See if we can just fake it. */
141 sec
= bfd_make_section_anyway (abfd
, ".ldinfo");
145 sec
->flags
= SEC_HAS_CONTENTS
;
146 sec
->size
= core
.c_lsize
;
148 sec
->filepos
= core
.c_loader
;
150 /* AIX 4 adds data sections from loaded objects to the core file,
151 which can be found by examining ldinfo, and anonymously mmapped
154 /* .data section from executable. */
155 sec
= bfd_make_section_anyway (abfd
, ".data");
159 sec
->flags
= SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
;
160 sec
->size
= core
.c_datasize
;
161 sec
->vma
= core
.c_dataorg
;
162 sec
->filepos
= core
.c_data
;
164 /* .data sections from loaded objects. */
165 ld_offset
= core
.c_loader
;
169 if (bfd_seek (abfd
, ld_offset
, SEEK_SET
) != 0)
172 if (sizeof (struct __ld_info64
) !=
173 bfd_bread (&ldinfo
, sizeof (struct __ld_info64
), abfd
))
176 if (ldinfo
.ldinfo_core
)
178 sec
= bfd_make_section_anyway (abfd
, ".data");
182 sec
->flags
= SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
;
183 sec
->size
= ldinfo
.ldinfo_datasize
;
184 sec
->vma
= ldinfo
.ldinfo_dataorg
;
185 sec
->filepos
= ldinfo
.ldinfo_core
;
188 if (0 == ldinfo
.ldinfo_next
)
190 ld_offset
+= ldinfo
.ldinfo_next
;
193 /* .vmdata sections from anonymously mmapped regions. */
194 if (core
.c_vmregions
)
196 if (bfd_seek (abfd
, core
.c_vmm
, SEEK_SET
) != 0)
199 for (i
= 0; i
< core
.c_vmregions
; i
++)
200 if (sizeof (struct vm_infox
) !=
201 bfd_bread (&vminfo
, sizeof (struct vm_infox
), abfd
))
204 if (vminfo
.vminfo_offset
)
206 sec
= bfd_make_section_anyway (abfd
, ".vmdata");
210 sec
->flags
= SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
;
211 sec
->size
= vminfo
.vminfo_size
;
212 sec
->vma
= vminfo
.vminfo_addr
;
213 sec
->filepos
= vminfo
.vminfo_offset
;
217 return_value
= (bfd_target
*) abfd
->xvec
; /* This is garbage for now. */
219 xcoff64_core_p_error
:
220 if (bfd_get_error () != bfd_error_system_call
)
221 bfd_set_error (bfd_error_wrong_format
);
226 /* Return `TRUE' if given core is from the given executable. */
229 xcoff64_core_file_matches_executable_p (bfd
*core_bfd
, bfd
*exec_bfd
)
231 struct core_dumpxx core
;
234 const char *str1
, *str2
;
235 bfd_boolean return_value
= FALSE
;
237 /* Get the header. */
238 if (bfd_seek (core_bfd
, 0, SEEK_SET
) != 0)
241 if (sizeof (struct core_dumpxx
) !=
242 bfd_bread (&core
, sizeof (struct core_dumpxx
), core_bfd
))
245 if (bfd_seek (core_bfd
, core
.c_loader
, SEEK_SET
) != 0)
249 path
= bfd_malloc (alloc
);
257 if (bfd_bread (s
, 1, core_bfd
) != 1)
258 goto xcoff64_core_file_matches_executable_p_end_1
;
263 if (s
== path
+ alloc
)
268 n
= bfd_realloc (path
, alloc
);
270 goto xcoff64_core_file_matches_executable_p_end_1
;
277 str1
= strrchr (path
, '/');
278 str2
= strrchr (exec_bfd
->filename
, '/');
280 /* Step over character '/'. */
281 str1
= str1
!= NULL
? str1
+ 1 : path
;
282 str2
= str2
!= NULL
? str2
+ 1 : exec_bfd
->filename
;
284 if (strcmp (str1
, str2
) == 0)
287 xcoff64_core_file_matches_executable_p_end_1
:
293 xcoff64_core_file_failing_command (bfd
*abfd
)
295 struct core_dumpxx
*c
= core_hdr (abfd
);
296 char *return_value
= 0;
299 return_value
= c
->c_u
.U_proc
.pi_comm
;
305 xcoff64_core_file_failing_signal (bfd
*abfd
)
307 struct core_dumpxx
*c
= core_hdr (abfd
);
308 int return_value
= 0;
311 return_value
= c
->c_signo
;
316 #else /* AIX_5_CORE */
318 const bfd_target
*xcoff64_core_p (bfd
*);
319 bfd_boolean
xcoff64_core_file_matches_executable_p (bfd
*, bfd
*);
320 char *xcoff64_core_file_failing_command (bfd
*);
321 int xcoff64_core_file_failing_signal (bfd
*);
324 xcoff64_core_p (bfd
*abfd ATTRIBUTE_UNUSED
)
326 bfd_set_error (bfd_error_wrong_format
);
331 xcoff64_core_file_matches_executable_p (bfd
*core_bfd ATTRIBUTE_UNUSED
,
332 bfd
*exec_bfd ATTRIBUTE_UNUSED
)
338 xcoff64_core_file_failing_command (bfd
*abfd ATTRIBUTE_UNUSED
)
344 xcoff64_core_file_failing_signal (bfd
*abfd ATTRIBUTE_UNUSED
)
349 #endif /* AIX_5_CORE */