1 /* IBM RS/6000 "XCOFF" back-end for BFD.
3 Free Software Foundation, 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., 59 Temple Place - Suite 330, Boston,
22 MA 02111-1307, USA. */
31 const bfd_target * xcoff64_core_p PARAMS ((bfd *));
32 boolean xcoff64_core_file_matches_executable_p PARAMS ((bfd *, bfd *));
33 char * xcoff64_core_file_failing_command PARAMS ((bfd *));
34 int xcoff64_core_file_failing_signal PARAMS ((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)
52 struct core_dumpxx core, *new_core_hdr;
55 struct __ld_info64 ldinfo;
58 struct vm_infox vminfo;
59 bfd_target *return_value = NULL;
62 if (bfd_seek (abfd, 0, SEEK_SET) != 0)
63 goto xcoff64_core_p_error;
65 if (sizeof (struct core_dumpxx)
66 != bfd_bread (&core, sizeof (struct core_dumpxx), abfd))
67 goto xcoff64_core_p_error;
69 if (bfd_stat (abfd, &statbuf) < 0)
70 goto xcoff64_core_p_error;
73 c_flag has CORE_VERSION_1, Aix 4+
74 c_entries = 0 for Aix 4.3+
75 IS_PROC64 is a macro defined in procinfo.h, test for 64 bit process.
77 We will still be confused if a Aix 4.3 64 bit core file is
78 copied over to a Aix 5 machine.
80 Check file header offsets
82 See rs6000-core.c for comment on size of core
83 If there isn't enough of a real core file, bail. */
85 if ((CORE_VERSION_1 != (core.c_flag & CORE_VERSION_1))
86 || (0 != core.c_entries)
87 || (! (IS_PROC64 (&core.c_u.U_proc)))
88 || ((CHECK_FILE_OFFSET (statbuf, core.c_fdsinfox)))
89 || ((CHECK_FILE_OFFSET (statbuf, core.c_loader)))
90 || ((CHECK_FILE_OFFSET (statbuf, core.c_loader + core.c_lsize)))
91 || ((CHECK_FILE_OFFSET (statbuf, core.c_thr)))
92 || ((CHECK_FILE_OFFSET (statbuf, core.c_segregion)))
93 || ((CHECK_FILE_OFFSET (statbuf, core.c_stack)))
94 || ((CHECK_FILE_OFFSET (statbuf, core.c_stack + core.c_size)))
95 || ((CHECK_FILE_OFFSET (statbuf, core.c_data)))
96 || ((CHECK_FILE_OFFSET (statbuf, core.c_data + core.c_datasize)))
97 || (! (core.c_flag & UBLOCK_VALID))
98 || (! (core.c_flag & LE_VALID)))
99 goto xcoff64_core_p_error;
101 /* Check for trucated stack or general truncating. */
102 if ((! (core.c_flag & USTACK_VALID))
103 || (core.c_flag & CORE_TRUNC))
105 bfd_set_error (bfd_error_file_truncated);
110 new_core_hdr = (struct core_dumpxx *)
111 bfd_zalloc (abfd, sizeof (struct core_dumpxx));
112 if (NULL == new_core_hdr)
115 memcpy (new_core_hdr, &core, sizeof (struct core_dumpxx));
116 core_hdr(abfd) = (char *)new_core_hdr;
118 /* .stack section. */
119 sec = bfd_make_section_anyway (abfd, ".stack");
123 sec->flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS;
124 sec->_raw_size = core.c_size;
125 sec->vma = core.c_stackorg;
126 sec->filepos = core.c_stack;
128 /* .reg section for all registers. */
129 sec = bfd_make_section_anyway (abfd, ".reg");
133 sec->flags = SEC_HAS_CONTENTS | SEC_IN_MEMORY;
134 sec->_raw_size = sizeof (struct __context64);
137 sec->contents = (bfd_byte *)&new_core_hdr->c_flt.r64;
140 To actually find out how long this section is in this particular
141 core dump would require going down the whole list of struct
142 ld_info's. See if we can just fake it. */
143 sec = bfd_make_section_anyway (abfd, ".ldinfo");
147 sec->flags = SEC_HAS_CONTENTS;
148 sec->_raw_size = core.c_lsize;
150 sec->filepos = core.c_loader;
152 /* AIX 4 adds data sections from loaded objects to the core file,
153 which can be found by examining ldinfo, and anonymously mmapped
156 /* .data section from executable. */
157 sec = bfd_make_section_anyway (abfd, ".data");
161 sec->flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS;
162 sec->_raw_size = core.c_datasize;
163 sec->vma = core.c_dataorg;
164 sec->filepos = core.c_data;
166 /* .data sections from loaded objects. */
167 ld_offset = core.c_loader;
171 if (bfd_seek (abfd, ld_offset, SEEK_SET) != 0)
174 if (sizeof (struct __ld_info64) !=
175 bfd_bread (&ldinfo, sizeof (struct __ld_info64), abfd))
178 if (ldinfo.ldinfo_core)
180 sec = bfd_make_section_anyway (abfd, ".data");
184 sec->flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS;
185 sec->_raw_size = ldinfo.ldinfo_datasize;
186 sec->vma = ldinfo.ldinfo_dataorg;
187 sec->filepos = ldinfo.ldinfo_core;
190 if (0 == ldinfo.ldinfo_next)
192 ld_offset += ldinfo.ldinfo_next;
195 /* .vmdata sections from anonymously mmapped regions. */
196 if (core.c_vmregions)
198 if (bfd_seek (abfd, core.c_vmm, SEEK_SET) != 0)
201 for (i = 0; i < core.c_vmregions; i++)
202 if (sizeof (struct vm_infox) !=
203 bfd_bread (&vminfo, sizeof (struct vm_infox), abfd))
206 if (vminfo.vminfo_offset)
208 sec = bfd_make_section_anyway (abfd, ".vmdata");
212 sec->flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS;
213 sec->_raw_size = vminfo.vminfo_size;
214 sec->vma = vminfo.vminfo_addr;
215 sec->filepos = vminfo.vminfo_offset;
219 return_value = abfd->xvec; /* This is garbage for now. */
221 xcoff64_core_p_error:
222 if (bfd_get_error () != bfd_error_system_call)
223 bfd_set_error (bfd_error_wrong_format);
228 /* Return `true' if given core is from the given executable. */
231 xcoff64_core_file_matches_executable_p (core_bfd, exec_bfd)
235 struct core_dumpxx core;
238 const char *str1, *str2;
239 boolean return_value = false;
241 /* Get the header. */
242 if (bfd_seek (core_bfd, 0, SEEK_SET) != 0)
245 if (sizeof (struct core_dumpxx) !=
246 bfd_bread (&core, sizeof (struct core_dumpxx), core_bfd))
249 if (bfd_seek (core_bfd, core.c_loader, SEEK_SET) != 0)
253 path = bfd_malloc (alloc);
261 if (bfd_bread (s, 1, core_bfd) != 1)
262 goto xcoff64_core_file_matches_executable_p_end_1;
267 if (s == path + alloc)
272 n = bfd_realloc (path, alloc);
274 goto xcoff64_core_file_matches_executable_p_end_1;
281 str1 = strrchr (path, '/');
282 str2 = strrchr (exec_bfd->filename, '/');
284 /* Step over character '/'. */
285 str1 = str1 != NULL ? str1 + 1 : path;
286 str2 = str2 != NULL ? str2 + 1 : exec_bfd->filename;
288 if (strcmp (str1, str2) == 0)
291 xcoff64_core_file_matches_executable_p_end_1:
297 xcoff64_core_file_failing_command (abfd)
300 struct core_dumpxx *c = core_hdr (abfd);
301 char *return_value = 0;
304 return_value = c->c_u.U_proc.pi_comm;
310 xcoff64_core_file_failing_signal (abfd)
313 struct core_dumpxx *c = core_hdr (abfd);
314 int return_value = 0;
317 return_value = c->c_signo;
322 #else /* AIX_5_CORE */
324 const bfd_target * xcoff64_core_p PARAMS ((bfd *));
325 boolean xcoff64_core_file_matches_executable_p PARAMS ((bfd *, bfd *));
326 char * xcoff64_core_file_failing_command PARAMS ((bfd *));
327 int xcoff64_core_file_failing_signal PARAMS ((bfd *));
330 xcoff64_core_p (abfd)
331 bfd *abfd ATTRIBUTE_UNUSED;
333 bfd_set_error (bfd_error_wrong_format);
338 xcoff64_core_file_matches_executable_p (core_bfd, exec_bfd)
339 bfd *core_bfd ATTRIBUTE_UNUSED;
340 bfd *exec_bfd ATTRIBUTE_UNUSED;
346 xcoff64_core_file_failing_command (abfd)
347 bfd *abfd ATTRIBUTE_UNUSED;
353 xcoff64_core_file_failing_signal (abfd)
354 bfd *abfd ATTRIBUTE_UNUSED;
359 #endif /* AIX_5_CORE */