1 /* BFD back-end for HP/UX core files.
2 Copyright 1993, 1994, 1996, 1998, 1999, 2001
3 Free Software Foundation, Inc.
4 Written by Stu Grossman, Cygnus Support.
5 Converted to back-end form by Ian Lance Taylor, Cygnus SUpport
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, MA 02111-1307, USA. */
23 /* This file can only be compiled on systems which use HP/UX style
30 #if defined (HOST_HPPAHPUX) || defined (HOST_HP300HPUX) || defined (HOST_HPPAMPEIX)
32 /* FIXME: sys/core.h doesn't exist for HPUX version 7. HPUX version
33 5, 6, and 7 core files seem to be standard trad-core.c type core
34 files; can we just use trad-core.c in addition to this file? */
37 #include <sys/utsname.h>
39 #endif /* HOST_HPPAHPUX */
43 /* Not a very swift place to put it, but that's where the BSD port
45 #include "/hpux/usr/include/sys/core.h"
47 #endif /* HOST_HPPABSD */
49 #include <sys/param.h>
53 # ifdef HAVE_SYS_NDIR_H
54 # include <sys/ndir.h>
56 # ifdef HAVE_SYS_DIR_H
64 #include <machine/reg.h>
65 #include <sys/user.h> /* After a.out.h */
68 /* Kludge: There's no explicit mechanism provided by sys/core.h to
69 conditionally know whether a proc_info has thread id fields.
70 However, CORE_ANON_SHMEM shows up first at 10.30, which is
71 happily also when meaningful thread id's show up in proc_info. */
72 #if defined(CORE_ANON_SHMEM)
73 #define PROC_INFO_HAS_THREAD_ID (1)
76 /* This type appears at HP-UX 10.30. Defining it if not defined
77 by sys/core.h allows us to build for older HP-UX's, and (since
78 it won't be encountered in core-dumps from older HP-UX's) is
80 #if !defined(CORE_ANON_SHMEM)
81 #define CORE_ANON_SHMEM 0x00000200 /* anonymous shared memory */
84 /* These are stored in the bfd's tdata */
86 /* .lwpid and .user_tid are only valid if PROC_INFO_HAS_THREAD_ID, else they
87 are set to 0. Also, until HP-UX implements MxN threads, .user_tid and
88 .lwpid are synonymous. */
89 struct hpux_core_struct
92 int lwpid; /* Kernel thread ID. */
93 unsigned long user_tid; /* User thread ID. */
94 char cmd[MAXCOMLEN + 1];
97 #define core_hdr(bfd) ((bfd)->tdata.hpux_core_data)
98 #define core_signal(bfd) (core_hdr(bfd)->sig)
99 #define core_command(bfd) (core_hdr(bfd)->cmd)
100 #define core_kernel_thread_id(bfd) (core_hdr(bfd)->lwpid)
101 #define core_user_thread_id(bfd) (core_hdr(bfd)->user_tid)
103 static void swap_abort PARAMS ((void));
106 make_bfd_asection (abfd, name, flags, _raw_size, vma, alignment_power)
110 bfd_size_type _raw_size;
112 unsigned int alignment_power;
117 newname = bfd_alloc (abfd, strlen (name) + 1);
121 strcpy (newname, name);
123 asect = bfd_make_section_anyway (abfd, newname);
127 asect->flags = flags;
128 asect->_raw_size = _raw_size;
130 asect->filepos = bfd_tell (abfd);
131 asect->alignment_power = alignment_power;
137 hpux_core_make_empty_symbol (abfd)
140 asymbol *new = (asymbol *) bfd_zalloc (abfd, sizeof (asymbol));
146 /* this function builds a bfd target if the file is a corefile.
147 It returns null or 0 if it finds out thaat it is not a core file.
148 The way it checks this is by looking for allowed 'type' field values.
149 These are declared in sys/core.h
150 There are some values which are 'reserved for future use'. In particular
151 CORE_NONE is actually defined as 0. This may be a catch-all for cases
152 in which the core file is generated by some non-hpux application.
153 (I am just guessing here!)
155 static const bfd_target *
156 hpux_core_core_file_p (abfd)
159 int good_sections = 0;
160 int unknown_sections = 0;
162 core_hdr (abfd) = (struct hpux_core_struct *)
163 bfd_zalloc (abfd, sizeof (struct hpux_core_struct));
164 if (!core_hdr (abfd))
170 struct corehead core_header;
172 val = bfd_read ((void *) &core_header, 1, sizeof core_header, abfd);
175 switch (core_header.type)
179 bfd_seek (abfd, core_header.len, SEEK_CUR); /* Just skip this */
184 struct proc_exec proc_exec;
185 if (bfd_read ((void *) &proc_exec, 1, core_header.len, abfd)
188 strncpy (core_command (abfd), proc_exec.cmd, MAXCOMLEN + 1);
194 struct proc_info proc_info;
195 char secname[100]; /* Of arbitrary size, but plenty large. */
197 /* We need to read this section, 'cause we need to determine
198 whether the core-dumped app was threaded before we create
199 any .reg sections. */
200 if (bfd_read (&proc_info, 1, core_header.len, abfd)
204 /* However, we also want to create those sections with the
205 file positioned at the start of the record, it seems. */
206 if (bfd_seek (abfd, -core_header.len, SEEK_CUR) != 0)
209 #if defined(PROC_INFO_HAS_THREAD_ID)
210 core_kernel_thread_id (abfd) = proc_info.lwpid;
211 core_user_thread_id (abfd) = proc_info.user_tid;
213 core_kernel_thread_id (abfd) = 0;
214 core_user_thread_id (abfd) = 0;
216 /* If the program was unthreaded, then we'll just create a
219 If the program was threaded, then we'll create .reg/XXXXX
220 section for each thread, where XXXXX is a printable
221 representation of the kernel thread id. We'll also
222 create a .reg section for the thread that was running
223 and signalled at the time of the core-dump (i.e., this
224 is effectively an alias, needed to keep GDB happy.)
226 Note that we use `.reg/XXXXX' as opposed to '.regXXXXX'
227 because GDB expects that .reg2 will be the floating-
229 if (core_kernel_thread_id (abfd) == 0)
231 if (!make_bfd_asection (abfd, ".reg",
234 (int) &proc_info - (int) & proc_info.hw_regs,
240 /* There are threads. Is this the one that caused the
241 core-dump? We'll claim it was the running thread. */
242 if (proc_info.sig != -1)
244 if (!make_bfd_asection (abfd, ".reg",
247 (int) &proc_info - (int) & proc_info.hw_regs,
251 /* We always make one of these sections, for every thread. */
252 sprintf (secname, ".reg/%d", core_kernel_thread_id (abfd));
253 if (!make_bfd_asection (abfd, secname,
256 (int) &proc_info - (int) & proc_info.hw_regs,
260 core_signal (abfd) = proc_info.sig;
261 if (bfd_seek (abfd, core_header.len, SEEK_CUR) != 0)
272 case CORE_ANON_SHMEM:
273 if (!make_bfd_asection (abfd, ".data",
274 SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS,
275 core_header.len, core_header.addr, 2))
278 bfd_seek (abfd, core_header.len, SEEK_CUR);
283 /* Let's not punt if we encounter a section of unknown
284 type. Rather, let's make a note of it. If we later
285 see that there were also "good" sections, then we'll
286 declare that this a core file, but we'll also warn that
287 it may be incompatible with this gdb.
292 default: return 0; /*unrecognized core file type */
296 /* OK, we believe you. You're a core file (sure, sure). */
298 /* Were there sections of unknown type? If so, yet there were
299 at least some complete sections of known type, then, issue
300 a warning. Possibly the core file was generated on a version
301 of HP-UX that is incompatible with that for which this gdb was
304 if ((unknown_sections > 0) && (good_sections > 0))
305 (*_bfd_error_handler)
306 ("%s appears to be a core file,\nbut contains unknown sections. It may have been created on an incompatible\nversion of HP-UX. As a result, some information may be unavailable.\n",
313 hpux_core_core_file_failing_command (abfd)
316 return core_command (abfd);
321 hpux_core_core_file_failing_signal (abfd)
324 return core_signal (abfd);
329 hpux_core_core_file_matches_executable_p (core_bfd, exec_bfd)
330 bfd *core_bfd, *exec_bfd;
332 return true; /* FIXME, We have no way of telling at this point */
335 #define hpux_core_get_symtab_upper_bound _bfd_nosymbols_get_symtab_upper_bound
336 #define hpux_core_get_symtab _bfd_nosymbols_get_symtab
337 #define hpux_core_print_symbol _bfd_nosymbols_print_symbol
338 #define hpux_core_get_symbol_info _bfd_nosymbols_get_symbol_info
339 #define hpux_core_bfd_is_local_label_name \
340 _bfd_nosymbols_bfd_is_local_label_name
341 #define hpux_core_get_lineno _bfd_nosymbols_get_lineno
342 #define hpux_core_find_nearest_line _bfd_nosymbols_find_nearest_line
343 #define hpux_core_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
344 #define hpux_core_read_minisymbols _bfd_nosymbols_read_minisymbols
345 #define hpux_core_minisymbol_to_symbol _bfd_nosymbols_minisymbol_to_symbol
347 /* If somebody calls any byte-swapping routines, shoot them. */
351 abort(); /* This way doesn't require any declaration for ANSI to fuck up */
353 #define NO_GET ((bfd_vma (*) PARAMS (( const bfd_byte *))) swap_abort )
354 #define NO_PUT ((void (*) PARAMS ((bfd_vma, bfd_byte *))) swap_abort )
355 #define NO_SIGNED_GET \
356 ((bfd_signed_vma (*) PARAMS ((const bfd_byte *))) swap_abort )
358 const bfd_target hpux_core_vec =
361 bfd_target_unknown_flavour,
362 BFD_ENDIAN_BIG, /* target byte order */
363 BFD_ENDIAN_BIG, /* target headers byte order */
364 (HAS_RELOC | EXEC_P | /* object flags */
365 HAS_LINENO | HAS_DEBUG |
366 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
367 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
368 0, /* symbol prefix */
369 ' ', /* ar_pad_char */
370 16, /* ar_max_namelen */
371 NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit data */
372 NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit data */
373 NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit data */
374 NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit hdrs */
375 NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit hdrs */
376 NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit hdrs */
378 { /* bfd_check_format */
379 _bfd_dummy_target, /* unknown format */
380 _bfd_dummy_target, /* object file */
381 _bfd_dummy_target, /* archive */
382 hpux_core_core_file_p /* a core file */
384 { /* bfd_set_format */
385 bfd_false, bfd_false,
388 { /* bfd_write_contents */
389 bfd_false, bfd_false,
393 BFD_JUMP_TABLE_GENERIC (_bfd_generic),
394 BFD_JUMP_TABLE_COPY (_bfd_generic),
395 BFD_JUMP_TABLE_CORE (hpux_core),
396 BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
397 BFD_JUMP_TABLE_SYMBOLS (hpux_core),
398 BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
399 BFD_JUMP_TABLE_WRITE (_bfd_generic),
400 BFD_JUMP_TABLE_LINK (_bfd_nolink),
401 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
405 (PTR) 0 /* backend_data */