Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* IBM RS/6000 "XCOFF" back-end for BFD. |
7898deda | 2 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2000, |
3db64b00 | 3 | 2001, 2002, 2004, 2006, 2007 |
252b5132 | 4 | Free Software Foundation, Inc. |
2ce18a16 | 5 | Written by Metin G. Ozisik, Mimi Phuong-Thao Vo, and John Gilmore. |
252b5132 RH |
6 | Archive support from Damon A. Permezel. |
7 | Contributed by IBM Corporation and Cygnus Support. | |
8 | ||
eb1e0e80 | 9 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 10 | |
eb1e0e80 NC |
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 | |
cd123cb7 | 13 | the Free Software Foundation; either version 3 of the License, or |
eb1e0e80 | 14 | (at your option) any later version. |
252b5132 | 15 | |
eb1e0e80 NC |
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. | |
252b5132 | 20 | |
eb1e0e80 NC |
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 | |
cd123cb7 NC |
23 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
24 | MA 02110-1301, USA. */ | |
25 | ||
252b5132 RH |
26 | |
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. | |
30 | ||
252b5132 | 31 | This is in a separate file from coff-rs6000.c, because it includes |
6a125b16 | 32 | system include files that conflict with coff/rs6000.h. */ |
252b5132 RH |
33 | |
34 | /* Internalcoff.h and coffcode.h modify themselves based on this flag. */ | |
35 | #define RS6000COFF_C 1 | |
36 | ||
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 | |
43 | ||
252b5132 | 44 | #include "sysdep.h" |
3db64b00 | 45 | #include "bfd.h" |
252b5132 RH |
46 | #include "libbfd.h" |
47 | ||
48 | #ifdef AIX_CORE | |
49 | ||
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 | |
57 | ||
58 | #undef SCNHDR | |
59 | ||
252b5132 | 60 | /* ------------------------------------------------------------------------ */ |
59d9f049 | 61 | /* Support for core file stuff.. */ |
252b5132 RH |
62 | /* ------------------------------------------------------------------------ */ |
63 | ||
64 | #include <sys/user.h> | |
59d9f049 ND |
65 | #define __LDINFO_PTRACE32__ /* for __ld_info32 */ |
66 | #define __LDINFO_PTRACE64__ /* for __ld_info64 */ | |
252b5132 RH |
67 | #include <sys/ldr.h> |
68 | #include <sys/core.h> | |
59d9f049 ND |
69 | #include <sys/systemcfg.h> |
70 | ||
cc429f57 JB |
71 | /* Borrowed from <sys/inttypes.h> on recent AIX versions. */ |
72 | typedef unsigned long ptr_to_uint; | |
73 | ||
59d9f049 ND |
74 | #define core_hdr(bfd) ((CoreHdr *) bfd->tdata.any) |
75 | ||
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. | |
79 | ||
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 | |
3d855632 | 83 | or else defines it as 0. */ |
59d9f049 ND |
84 | |
85 | #if defined(CORE_VERSION_1) && !CORE_VERSION_1 | |
86 | # undef CORE_VERSION_1 | |
87 | #endif | |
88 | ||
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 | |
3d855632 | 92 | values. */ |
59d9f049 | 93 | |
3d855632 | 94 | /* Union of 32-bit and 64-bit versions of ld_info. */ |
59d9f049 ND |
95 | |
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; | |
105 | ||
3d855632 | 106 | /* Union of old and new core dump structures. */ |
59d9f049 ND |
107 | |
108 | typedef union { | |
109 | #ifdef AIX_CORE_DUMPX_CORE | |
6a125b16 | 110 | struct core_dumpx new; /* new AIX 4.3+ core dump */ |
59d9f049 | 111 | #else |
6a125b16 | 112 | struct core_dump new; /* for simpler coding */ |
59d9f049 | 113 | #endif |
6a125b16 | 114 | struct core_dump old; /* old AIX 4.2- core dump, still used on |
59d9f049 ND |
115 | 4.3+ with appropriate SMIT config */ |
116 | } CoreHdr; | |
117 | ||
3d855632 | 118 | /* Union of old and new vm_info structures. */ |
59d9f049 | 119 | |
1605fc4f | 120 | #ifdef CORE_VERSION_1 |
59d9f049 ND |
121 | typedef union { |
122 | #ifdef AIX_CORE_DUMPX_CORE | |
6a125b16 | 123 | struct vm_infox new; |
59d9f049 | 124 | #else |
6a125b16 | 125 | struct vm_info new; |
59d9f049 | 126 | #endif |
6a125b16 | 127 | struct vm_info old; |
59d9f049 | 128 | } VmInfo; |
1605fc4f | 129 | #endif |
59d9f049 | 130 | |
3d855632 | 131 | /* Return whether CoreHdr C is in new or old format. */ |
59d9f049 ND |
132 | |
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 | |
138 | ||
3d855632 | 139 | /* Return the c_stackorg field from struct core_dumpx C. */ |
59d9f049 ND |
140 | |
141 | #ifdef AIX_CORE_DUMPX_CORE | |
142 | # define CNEW_STACKORG(c) (c).c_stackorg | |
143 | #else | |
144 | # define CNEW_STACKORG(c) 0 | |
145 | #endif | |
146 | ||
3d855632 | 147 | /* Return the offset to the loader region from struct core_dump C. */ |
59d9f049 ND |
148 | |
149 | #ifdef AIX_CORE_DUMPX_CORE | |
150 | # define CNEW_LOADER(c) (c).c_loader | |
151 | #else | |
152 | # define CNEW_LOADER(c) 0 | |
153 | #endif | |
154 | ||
3d855632 | 155 | /* Return the offset to the loader region from struct core_dump C. */ |
59d9f049 ND |
156 | |
157 | #define COLD_LOADER(c) (c).c_tab | |
158 | ||
3d855632 | 159 | /* Return the c_lsize field from struct core_dumpx C. */ |
59d9f049 ND |
160 | |
161 | #ifdef AIX_CORE_DUMPX_CORE | |
162 | # define CNEW_LSIZE(c) (c).c_lsize | |
163 | #else | |
164 | # define CNEW_LSIZE(c) 0 | |
165 | #endif | |
166 | ||
3d855632 | 167 | /* Return the c_dataorg field from struct core_dumpx C. */ |
252b5132 | 168 | |
59d9f049 ND |
169 | #ifdef AIX_CORE_DUMPX_CORE |
170 | # define CNEW_DATAORG(c) (c).c_dataorg | |
171 | #else | |
172 | # define CNEW_DATAORG(c) 0 | |
173 | #endif | |
252b5132 | 174 | |
3d855632 | 175 | /* Return the c_datasize field from struct core_dumpx C. */ |
252b5132 | 176 | |
59d9f049 ND |
177 | #ifdef AIX_CORE_DUMPX_CORE |
178 | # define CNEW_DATASIZE(c) (c).c_datasize | |
179 | #else | |
180 | # define CNEW_DATASIZE(c) 0 | |
181 | #endif | |
182 | ||
3d855632 | 183 | /* Return the c_impl field from struct core_dumpx C. */ |
59d9f049 | 184 | |
83954261 | 185 | #if defined (HAVE_ST_C_IMPL) || defined (AIX_5_CORE) |
59d9f049 ND |
186 | # define CNEW_IMPL(c) (c).c_impl |
187 | #else | |
188 | # define CNEW_IMPL(c) 0 | |
189 | #endif | |
190 | ||
3d855632 | 191 | /* Return the command string from struct core_dumpx C. */ |
59d9f049 ND |
192 | |
193 | #ifdef AIX_CORE_DUMPX_CORE | |
194 | # define CNEW_COMM(c) (c).c_u.U_proc.pi_comm | |
195 | #else | |
196 | # define CNEW_COMM(c) 0 | |
197 | #endif | |
198 | ||
3d855632 | 199 | /* Return the command string from struct core_dump C. */ |
59d9f049 ND |
200 | |
201 | #ifdef CORE_VERSION_1 | |
202 | # define COLD_COMM(c) (c).c_u.U_comm | |
203 | #else | |
204 | # define COLD_COMM(c) (c).c_u.u_comm | |
205 | #endif | |
252b5132 | 206 | |
3d855632 | 207 | /* Return the struct __context64 pointer from struct core_dumpx C. */ |
252b5132 | 208 | |
59d9f049 ND |
209 | #ifdef AIX_CORE_DUMPX_CORE |
210 | # define CNEW_CONTEXT64(c) (c).c_flt.hctx.r64 | |
211 | #else | |
212 | # define CNEW_CONTEXT64(c) c | |
213 | #endif | |
252b5132 | 214 | |
3d855632 | 215 | /* Return the struct mstsave pointer from struct core_dumpx C. */ |
6ad49cca KB |
216 | |
217 | #ifdef AIX_CORE_DUMPX_CORE | |
59d9f049 | 218 | # define CNEW_MSTSAVE(c) (c).c_flt.hctx.r32 |
6ad49cca | 219 | #else |
59d9f049 ND |
220 | # define CNEW_MSTSAVE(c) c |
221 | #endif | |
222 | ||
3d855632 | 223 | /* Return the struct mstsave pointer from struct core_dump C. */ |
59d9f049 | 224 | |
252b5132 | 225 | #ifdef CORE_VERSION_1 |
59d9f049 | 226 | # define COLD_MSTSAVE(c) (c).c_mst |
252b5132 | 227 | #else |
59d9f049 | 228 | # define COLD_MSTSAVE(c) (c).c_u.u_save |
6ad49cca | 229 | #endif |
59d9f049 | 230 | |
3d855632 | 231 | /* Return whether struct core_dumpx is from a 64-bit process. */ |
59d9f049 ND |
232 | |
233 | #ifdef AIX_CORE_DUMPX_CORE | |
234 | # define CNEW_PROC64(c) IS_PROC64(&(c).c_u.U_proc) | |
235 | #else | |
236 | # define CNEW_PROC64(c) 0 | |
237 | #endif | |
238 | ||
239 | /* Magic end-of-stack addresses for old core dumps. This is _very_ fragile, | |
3d855632 | 240 | but I don't see any easy way to get that info right now. */ |
59d9f049 ND |
241 | |
242 | #ifdef CORE_VERSION_1 | |
243 | # define COLD_STACKEND 0x2ff23000 | |
244 | #else | |
245 | # define COLD_STACKEND 0x2ff80000 | |
252b5132 RH |
246 | #endif |
247 | ||
59d9f049 | 248 | /* Size of the leading portion that old and new core dump structures have in |
3d855632 | 249 | common. */ |
6a125b16 KH |
250 | #define CORE_COMMONSZ ((int) &((struct core_dump *) 0)->c_entries \ |
251 | + sizeof (((struct core_dump *) 0)->c_entries)) | |
252b5132 | 252 | |
cc429f57 JB |
253 | /* Define prototypes for certain functions, to avoid a compiler warning |
254 | saying that they are missing. */ | |
255 | ||
256 | const bfd_target * rs6000coff_core_p (bfd *abfd); | |
257 | bfd_boolean rs6000coff_core_file_matches_executable_p (bfd *core_bfd, | |
258 | bfd *exec_bfd); | |
259 | char * rs6000coff_core_file_failing_command (bfd *abfd); | |
260 | int rs6000coff_core_file_failing_signal (bfd *abfd); | |
261 | ||
3d855632 KH |
262 | /* Try to read into CORE the header from the core file associated with ABFD. |
263 | Return success. */ | |
59d9f049 | 264 | |
b34976b6 | 265 | static bfd_boolean |
59d9f049 ND |
266 | read_hdr (bfd *abfd, CoreHdr *core) |
267 | { | |
268 | bfd_size_type size; | |
269 | ||
dc810e39 | 270 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) |
b34976b6 | 271 | return FALSE; |
59d9f049 ND |
272 | |
273 | /* Read the leading portion that old and new core dump structures have in | |
3d855632 | 274 | common. */ |
dc810e39 AM |
275 | size = CORE_COMMONSZ; |
276 | if (bfd_bread (core, size, abfd) != size) | |
b34976b6 | 277 | return FALSE; |
59d9f049 | 278 | |
3d855632 | 279 | /* Read the trailing portion of the structure. */ |
dc810e39 AM |
280 | if (CORE_NEW (*core)) |
281 | size = sizeof (core->new); | |
282 | else | |
283 | size = sizeof (core->old); | |
284 | size -= CORE_COMMONSZ; | |
285 | return bfd_bread ((char *) core + CORE_COMMONSZ, size, abfd) == size; | |
59d9f049 | 286 | } |
252b5132 RH |
287 | |
288 | static asection * | |
cc429f57 JB |
289 | make_bfd_asection (bfd *abfd, const char *name, flagword flags, |
290 | bfd_size_type size, bfd_vma vma, file_ptr filepos) | |
252b5132 RH |
291 | { |
292 | asection *asect; | |
293 | ||
117ed4f8 | 294 | asect = bfd_make_section_anyway_with_flags (abfd, name, flags); |
252b5132 RH |
295 | if (!asect) |
296 | return NULL; | |
297 | ||
eea6121a | 298 | asect->size = size; |
252b5132 RH |
299 | asect->vma = vma; |
300 | asect->filepos = filepos; | |
301 | asect->alignment_power = 8; | |
302 | ||
303 | return asect; | |
304 | } | |
305 | ||
306 | /* Decide if a given bfd represents a `core' file or not. There really is no | |
3d855632 | 307 | magic number or anything like, in rs6000coff. */ |
252b5132 RH |
308 | |
309 | const bfd_target * | |
cc429f57 | 310 | rs6000coff_core_p (bfd *abfd) |
252b5132 | 311 | { |
59d9f049 | 312 | CoreHdr core; |
252b5132 | 313 | struct stat statbuf; |
59d9f049 | 314 | bfd_size_type size; |
252b5132 RH |
315 | char *tmpptr; |
316 | ||
3d855632 | 317 | /* Values from new and old core structures. */ |
59d9f049 ND |
318 | int c_flag; |
319 | file_ptr c_stack, c_regoff, c_loader; | |
320 | bfd_size_type c_size, c_regsize, c_lsize; | |
321 | bfd_vma c_stackend; | |
322 | void *c_regptr; | |
323 | int proc64; | |
252b5132 | 324 | |
59d9f049 | 325 | if (!read_hdr (abfd, &core)) |
252b5132 RH |
326 | { |
327 | if (bfd_get_error () != bfd_error_system_call) | |
328 | bfd_set_error (bfd_error_wrong_format); | |
329 | return NULL; | |
330 | } | |
331 | ||
3d855632 | 332 | /* Copy fields from new or old core structure. */ |
59d9f049 ND |
333 | if (CORE_NEW (core)) |
334 | { | |
335 | c_flag = core.new.c_flag; | |
336 | c_stack = (file_ptr) core.new.c_stack; | |
337 | c_size = core.new.c_size; | |
338 | c_stackend = CNEW_STACKORG (core.new) + c_size; | |
339 | c_lsize = CNEW_LSIZE (core.new); | |
340 | c_loader = CNEW_LOADER (core.new); | |
341 | proc64 = CNEW_PROC64 (core.new); | |
342 | } | |
343 | else | |
344 | { | |
345 | c_flag = core.old.c_flag; | |
cc429f57 | 346 | c_stack = (file_ptr) (ptr_to_uint) core.old.c_stack; |
59d9f049 ND |
347 | c_size = core.old.c_size; |
348 | c_stackend = COLD_STACKEND; | |
349 | c_lsize = 0x7ffffff; | |
cc429f57 | 350 | c_loader = (file_ptr) (ptr_to_uint) COLD_LOADER (core.old); |
59d9f049 ND |
351 | proc64 = 0; |
352 | } | |
353 | ||
354 | if (proc64) | |
355 | { | |
356 | c_regsize = sizeof (CNEW_CONTEXT64 (core.new)); | |
357 | c_regptr = &CNEW_CONTEXT64 (core.new); | |
358 | } | |
359 | else if (CORE_NEW (core)) | |
360 | { | |
361 | c_regsize = sizeof (CNEW_MSTSAVE (core.new)); | |
362 | c_regptr = &CNEW_MSTSAVE (core.new); | |
363 | } | |
364 | else | |
365 | { | |
366 | c_regsize = sizeof (COLD_MSTSAVE (core.old)); | |
367 | c_regptr = &COLD_MSTSAVE (core.old); | |
368 | } | |
6a125b16 | 369 | c_regoff = (char *) c_regptr - (char *) &core; |
59d9f049 | 370 | |
252b5132 RH |
371 | if (bfd_stat (abfd, &statbuf) < 0) |
372 | { | |
373 | bfd_set_error (bfd_error_system_call); | |
374 | return NULL; | |
375 | } | |
376 | ||
377 | /* If the core file ulimit is too small, the system will first | |
378 | omit the data segment, then omit the stack, then decline to | |
379 | dump core altogether (as far as I know UBLOCK_VALID and LE_VALID | |
380 | are always set) (this is based on experimentation on AIX 3.2). | |
381 | Now, the thing is that GDB users will be surprised | |
382 | if segments just silently don't appear (well, maybe they would | |
383 | think to check "info files", I don't know). | |
384 | ||
385 | For the data segment, we have no choice but to keep going if it's | |
386 | not there, since the default behavior is not to dump it (regardless | |
6a125b16 | 387 | of the ulimit, it's based on SA_FULLDUMP). But for the stack segment, |
252b5132 RH |
388 | if it's not there, we refuse to have anything to do with this core |
389 | file. The usefulness of a core dump without a stack segment is pretty | |
390 | limited anyway. */ | |
59d9f049 ND |
391 | |
392 | if (!(c_flag & UBLOCK_VALID) | |
393 | || !(c_flag & LE_VALID)) | |
252b5132 RH |
394 | { |
395 | bfd_set_error (bfd_error_wrong_format); | |
396 | return NULL; | |
397 | } | |
398 | ||
59d9f049 | 399 | if (!(c_flag & USTACK_VALID)) |
252b5132 RH |
400 | { |
401 | bfd_set_error (bfd_error_file_truncated); | |
402 | return NULL; | |
403 | } | |
404 | ||
405 | /* Don't check the core file size for a full core, AIX 4.1 includes | |
6a125b16 | 406 | additional shared library sections in a full core. */ |
59d9f049 | 407 | if (!(c_flag & (FULL_CORE | CORE_TRUNC))) |
252b5132 | 408 | { |
3d855632 | 409 | /* If the size is wrong, it means we're misinterpreting something. */ |
59d9f049 ND |
410 | if (c_stack + (file_ptr) c_size != statbuf.st_size) |
411 | { | |
412 | bfd_set_error (bfd_error_wrong_format); | |
413 | return NULL; | |
414 | } | |
252b5132 RH |
415 | } |
416 | ||
417 | /* Sanity check on the c_tab field. */ | |
59d9f049 ND |
418 | if (!CORE_NEW (core) && (c_loader < (file_ptr) sizeof core.old || |
419 | c_loader >= statbuf.st_size || | |
420 | c_loader >= c_stack)) | |
252b5132 RH |
421 | { |
422 | bfd_set_error (bfd_error_wrong_format); | |
423 | return NULL; | |
424 | } | |
425 | ||
426 | /* Issue warning if the core file was truncated during writing. */ | |
59d9f049 | 427 | if (c_flag & CORE_TRUNC) |
252b5132 RH |
428 | (*_bfd_error_handler) (_("%s: warning core file truncated"), |
429 | bfd_get_filename (abfd)); | |
430 | ||
6a125b16 | 431 | /* Allocate core file header. */ |
59d9f049 | 432 | size = CORE_NEW (core) ? sizeof (core.new) : sizeof (core.old); |
dc810e39 | 433 | tmpptr = (char *) bfd_zalloc (abfd, (bfd_size_type) size); |
252b5132 RH |
434 | if (!tmpptr) |
435 | return NULL; | |
252b5132 RH |
436 | |
437 | /* Copy core file header. */ | |
59d9f049 ND |
438 | memcpy (tmpptr, &core, size); |
439 | set_tdata (abfd, tmpptr); | |
440 | ||
3d855632 | 441 | /* Set architecture. */ |
59d9f049 ND |
442 | if (CORE_NEW (core)) |
443 | { | |
444 | enum bfd_architecture arch; | |
445 | unsigned long mach; | |
446 | ||
447 | switch (CNEW_IMPL (core.new)) | |
448 | { | |
449 | case POWER_RS1: | |
450 | case POWER_RSC: | |
451 | case POWER_RS2: | |
452 | arch = bfd_arch_rs6000; | |
453 | mach = bfd_mach_rs6k; | |
454 | break; | |
455 | default: | |
456 | arch = bfd_arch_powerpc; | |
457 | mach = bfd_mach_ppc; | |
458 | break; | |
6a125b16 | 459 | } |
59d9f049 ND |
460 | bfd_default_set_arch_mach (abfd, arch, mach); |
461 | } | |
252b5132 | 462 | |
3d855632 | 463 | /* .stack section. */ |
252b5132 | 464 | if (!make_bfd_asection (abfd, ".stack", |
59d9f049 ND |
465 | SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS, |
466 | c_size, c_stackend - c_size, c_stack)) | |
9e7b37b3 | 467 | goto fail; |
252b5132 | 468 | |
3d855632 | 469 | /* .reg section for all registers. */ |
252b5132 | 470 | if (!make_bfd_asection (abfd, ".reg", |
59d9f049 ND |
471 | SEC_HAS_CONTENTS, |
472 | c_regsize, (bfd_vma) 0, c_regoff)) | |
9e7b37b3 | 473 | goto fail; |
252b5132 RH |
474 | |
475 | /* .ldinfo section. | |
476 | To actually find out how long this section is in this particular | |
477 | core dump would require going down the whole list of struct ld_info's. | |
478 | See if we can just fake it. */ | |
479 | if (!make_bfd_asection (abfd, ".ldinfo", | |
59d9f049 ND |
480 | SEC_HAS_CONTENTS, |
481 | c_lsize, (bfd_vma) 0, c_loader)) | |
9e7b37b3 | 482 | goto fail; |
252b5132 RH |
483 | |
484 | #ifndef CORE_VERSION_1 | |
485 | /* .data section if present. | |
486 | AIX 3 dumps the complete data section and sets FULL_CORE if the | |
487 | ulimit is large enough, otherwise the data section is omitted. | |
488 | AIX 4 sets FULL_CORE even if the core file is truncated, we have | |
59d9f049 | 489 | to examine core.c_datasize below to find out the actual size of |
6a125b16 | 490 | the .data section. */ |
59d9f049 | 491 | if (c_flag & FULL_CORE) |
252b5132 RH |
492 | { |
493 | if (!make_bfd_asection (abfd, ".data", | |
494 | SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS, | |
59d9f049 | 495 | (bfd_size_type) core.old.c_u.u_dsize, |
252b5132 | 496 | (bfd_vma) |
59d9f049 ND |
497 | CDATA_ADDR (core.old.c_u.u_dsize), |
498 | c_stack + c_size)) | |
9e7b37b3 | 499 | goto fail; |
252b5132 RH |
500 | } |
501 | #endif | |
502 | ||
503 | #ifdef CORE_VERSION_1 | |
504 | /* AIX 4 adds data sections from loaded objects to the core file, | |
505 | which can be found by examining ldinfo, and anonymously mmapped | |
506 | regions. */ | |
507 | { | |
59d9f049 ND |
508 | LdInfo ldinfo; |
509 | bfd_size_type ldi_datasize; | |
510 | file_ptr ldi_core; | |
511 | uint ldi_next; | |
512 | bfd_vma ldi_dataorg; | |
513 | ||
3d855632 | 514 | /* Fields from new and old core structures. */ |
59d9f049 ND |
515 | bfd_size_type c_datasize, c_vmregions; |
516 | file_ptr c_data, c_vmm; | |
517 | ||
518 | if (CORE_NEW (core)) | |
519 | { | |
520 | c_datasize = CNEW_DATASIZE (core.new); | |
521 | c_data = (file_ptr) core.new.c_data; | |
522 | c_vmregions = core.new.c_vmregions; | |
523 | c_vmm = (file_ptr) core.new.c_vmm; | |
524 | } | |
525 | else | |
526 | { | |
527 | c_datasize = core.old.c_datasize; | |
cc429f57 | 528 | c_data = (file_ptr) (ptr_to_uint) core.old.c_data; |
59d9f049 | 529 | c_vmregions = core.old.c_vmregions; |
cc429f57 | 530 | c_vmm = (file_ptr) (ptr_to_uint) core.old.c_vmm; |
59d9f049 | 531 | } |
252b5132 RH |
532 | |
533 | /* .data section from executable. */ | |
59d9f049 | 534 | if (c_datasize) |
252b5132 RH |
535 | { |
536 | if (!make_bfd_asection (abfd, ".data", | |
537 | SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS, | |
59d9f049 ND |
538 | c_datasize, |
539 | (bfd_vma) CDATA_ADDR (c_datasize), | |
540 | c_data)) | |
9e7b37b3 | 541 | goto fail; |
252b5132 RH |
542 | } |
543 | ||
544 | /* .data sections from loaded objects. */ | |
59d9f049 | 545 | if (proc64) |
6a125b16 | 546 | size = (int) ((LdInfo *) 0)->l64.ldinfo_filename; |
59d9f049 | 547 | else |
6a125b16 | 548 | size = (int) ((LdInfo *) 0)->l32.ldinfo_filename; |
59d9f049 | 549 | |
252b5132 RH |
550 | while (1) |
551 | { | |
59d9f049 | 552 | if (bfd_seek (abfd, c_loader, SEEK_SET) != 0) |
9e7b37b3 | 553 | goto fail; |
dc810e39 | 554 | if (bfd_bread (&ldinfo, size, abfd) != size) |
9e7b37b3 | 555 | goto fail; |
59d9f049 ND |
556 | |
557 | if (proc64) | |
252b5132 | 558 | { |
59d9f049 ND |
559 | ldi_core = ldinfo.l64.ldinfo_core; |
560 | ldi_datasize = ldinfo.l64.ldinfo_datasize; | |
561 | ldi_dataorg = (bfd_vma) ldinfo.l64.ldinfo_dataorg; | |
562 | ldi_next = ldinfo.l64.ldinfo_next; | |
563 | } | |
564 | else | |
565 | { | |
566 | ldi_core = ldinfo.l32.ldinfo_core; | |
567 | ldi_datasize = ldinfo.l32.ldinfo_datasize; | |
3d855632 | 568 | ldi_dataorg = (bfd_vma) (long) ldinfo.l32.ldinfo_dataorg; |
59d9f049 | 569 | ldi_next = ldinfo.l32.ldinfo_next; |
252b5132 | 570 | } |
59d9f049 ND |
571 | |
572 | if (ldi_core) | |
573 | if (!make_bfd_asection (abfd, ".data", | |
574 | SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS, | |
575 | ldi_datasize, ldi_dataorg, ldi_core)) | |
9e7b37b3 | 576 | goto fail; |
59d9f049 ND |
577 | |
578 | if (ldi_next == 0) | |
252b5132 | 579 | break; |
59d9f049 | 580 | c_loader += ldi_next; |
252b5132 RH |
581 | } |
582 | ||
583 | /* .vmdata sections from anonymously mmapped regions. */ | |
59d9f049 | 584 | if (c_vmregions) |
252b5132 | 585 | { |
59d9f049 | 586 | bfd_size_type i; |
252b5132 | 587 | |
59d9f049 | 588 | if (bfd_seek (abfd, c_vmm, SEEK_SET) != 0) |
9e7b37b3 | 589 | goto fail; |
252b5132 | 590 | |
59d9f049 | 591 | for (i = 0; i < c_vmregions; i++) |
252b5132 | 592 | { |
59d9f049 ND |
593 | VmInfo vminfo; |
594 | bfd_size_type vminfo_size; | |
595 | file_ptr vminfo_offset; | |
596 | bfd_vma vminfo_addr; | |
252b5132 | 597 | |
59d9f049 | 598 | size = CORE_NEW (core) ? sizeof (vminfo.new) : sizeof (vminfo.old); |
dc810e39 | 599 | if (bfd_bread (&vminfo, size, abfd) != size) |
9e7b37b3 | 600 | goto fail; |
59d9f049 ND |
601 | |
602 | if (CORE_NEW (core)) | |
252b5132 | 603 | { |
59d9f049 ND |
604 | vminfo_addr = (bfd_vma) vminfo.new.vminfo_addr; |
605 | vminfo_size = vminfo.new.vminfo_size; | |
606 | vminfo_offset = vminfo.new.vminfo_offset; | |
252b5132 | 607 | } |
59d9f049 ND |
608 | else |
609 | { | |
3d855632 | 610 | vminfo_addr = (bfd_vma) (long) vminfo.old.vminfo_addr; |
59d9f049 ND |
611 | vminfo_size = vminfo.old.vminfo_size; |
612 | vminfo_offset = vminfo.old.vminfo_offset; | |
613 | } | |
614 | ||
615 | if (vminfo_offset) | |
616 | if (!make_bfd_asection (abfd, ".vmdata", | |
617 | SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS, | |
618 | vminfo_size, vminfo_addr, | |
619 | vminfo_offset)) | |
9e7b37b3 | 620 | goto fail; |
252b5132 RH |
621 | } |
622 | } | |
623 | } | |
624 | #endif | |
625 | ||
6a125b16 | 626 | return abfd->xvec; /* This is garbage for now. */ |
9e7b37b3 AM |
627 | |
628 | fail: | |
629 | bfd_release (abfd, abfd->tdata.any); | |
630 | abfd->tdata.any = NULL; | |
631 | bfd_section_list_clear (abfd); | |
632 | return NULL; | |
252b5132 RH |
633 | } |
634 | ||
b34976b6 | 635 | /* Return `TRUE' if given core is from the given executable. */ |
6a125b16 | 636 | |
b34976b6 | 637 | bfd_boolean |
cc429f57 | 638 | rs6000coff_core_file_matches_executable_p (bfd *core_bfd, bfd *exec_bfd) |
252b5132 | 639 | { |
59d9f049 | 640 | CoreHdr core; |
252b5132 RH |
641 | bfd_size_type size; |
642 | char *path, *s; | |
643 | size_t alloc; | |
644 | const char *str1, *str2; | |
b34976b6 | 645 | bfd_boolean ret; |
59d9f049 | 646 | file_ptr c_loader; |
252b5132 | 647 | |
59d9f049 | 648 | if (!read_hdr (core_bfd, &core)) |
b34976b6 | 649 | return FALSE; |
252b5132 | 650 | |
59d9f049 ND |
651 | if (CORE_NEW (core)) |
652 | c_loader = CNEW_LOADER (core.new); | |
653 | else | |
cc429f57 | 654 | c_loader = (file_ptr) (ptr_to_uint) COLD_LOADER (core.old); |
252b5132 | 655 | |
59d9f049 | 656 | if (CORE_NEW (core) && CNEW_PROC64 (core.new)) |
6a125b16 | 657 | size = (int) ((LdInfo *) 0)->l64.ldinfo_filename; |
59d9f049 | 658 | else |
6a125b16 | 659 | size = (int) ((LdInfo *) 0)->l32.ldinfo_filename; |
59d9f049 ND |
660 | |
661 | if (bfd_seek (core_bfd, c_loader + size, SEEK_SET) != 0) | |
b34976b6 | 662 | return FALSE; |
252b5132 RH |
663 | |
664 | alloc = 100; | |
dc810e39 | 665 | path = bfd_malloc ((bfd_size_type) alloc); |
252b5132 | 666 | if (path == NULL) |
b34976b6 | 667 | return FALSE; |
252b5132 RH |
668 | s = path; |
669 | ||
670 | while (1) | |
671 | { | |
dc810e39 | 672 | if (bfd_bread (s, (bfd_size_type) 1, core_bfd) != 1) |
252b5132 RH |
673 | { |
674 | free (path); | |
b34976b6 | 675 | return FALSE; |
252b5132 RH |
676 | } |
677 | if (*s == '\0') | |
678 | break; | |
679 | ++s; | |
680 | if (s == path + alloc) | |
681 | { | |
682 | char *n; | |
683 | ||
684 | alloc *= 2; | |
dc810e39 | 685 | n = bfd_realloc (path, (bfd_size_type) alloc); |
252b5132 RH |
686 | if (n == NULL) |
687 | { | |
688 | free (path); | |
b34976b6 | 689 | return FALSE; |
252b5132 RH |
690 | } |
691 | s = n + (path - s); | |
692 | path = n; | |
693 | } | |
694 | } | |
59d9f049 | 695 | |
252b5132 RH |
696 | str1 = strrchr (path, '/'); |
697 | str2 = strrchr (exec_bfd->filename, '/'); | |
698 | ||
699 | /* step over character '/' */ | |
700 | str1 = str1 != NULL ? str1 + 1 : path; | |
701 | str2 = str2 != NULL ? str2 + 1 : exec_bfd->filename; | |
702 | ||
703 | if (strcmp (str1, str2) == 0) | |
b34976b6 | 704 | ret = TRUE; |
252b5132 | 705 | else |
b34976b6 | 706 | ret = FALSE; |
252b5132 RH |
707 | |
708 | free (path); | |
709 | ||
710 | return ret; | |
711 | } | |
712 | ||
713 | char * | |
cc429f57 | 714 | rs6000coff_core_file_failing_command (bfd *abfd) |
252b5132 | 715 | { |
59d9f049 ND |
716 | CoreHdr *core = core_hdr (abfd); |
717 | char *com = CORE_NEW (*core) ? | |
718 | CNEW_COMM (core->new) : COLD_COMM (core->old); | |
719 | ||
252b5132 RH |
720 | if (*com) |
721 | return com; | |
722 | else | |
723 | return 0; | |
724 | } | |
725 | ||
726 | int | |
cc429f57 | 727 | rs6000coff_core_file_failing_signal (bfd *abfd) |
252b5132 | 728 | { |
59d9f049 ND |
729 | CoreHdr *core = core_hdr (abfd); |
730 | return CORE_NEW (*core) ? core->new.c_signo : core->old.c_signo; | |
252b5132 RH |
731 | } |
732 | ||
733 | #endif /* AIX_CORE */ |