1 /* BFD back-end for HPPA BSD core files.
2 Copyright 1993, 1994 Free Software Foundation, Inc.
4 This file is part of BFD, the Binary File Descriptor library.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 Written by the Center for Software Science at the University of Utah
21 and by Cygnus Support.
23 The core file structure for the Utah 4.3BSD and OSF1 ports on the
24 PA is a mix between traditional cores and hpux cores -- just
25 different enough that supporting this format would tend to add
26 gross hacks to trad-core.c or hpux-core.c. So instead we keep any
27 gross hacks isolated to this file. */
30 /* This file can only be compiled on systems which use HPPA-BSD style
33 I would not expect this to be of use to any other host/target, but
40 #if defined (HOST_HPPABSD)
42 #include "machine/vmparam.h"
45 #include <sys/types.h>
46 #include <sys/param.h>
49 #include <machine/reg.h>
50 #include <sys/user.h> /* After a.out.h */
54 static asection *make_bfd_asection PARAMS ((bfd *, CONST char *,
55 flagword, bfd_size_type,
56 file_ptr, unsigned int));
57 static asymbol *hppabsd_core_make_empty_symbol PARAMS ((bfd *));
58 static const bfd_target *hppabsd_core_core_file_p PARAMS ((bfd *));
59 static char *hppabsd_core_core_file_failing_command PARAMS ((bfd *));
60 static int hppabsd_core_core_file_failing_signal PARAMS ((bfd *));
61 static boolean hppabsd_core_core_file_matches_executable_p
62 PARAMS ((bfd *, bfd *));
63 static void swap_abort PARAMS ((void));
65 /* These are stored in the bfd's tdata. */
67 struct hppabsd_core_struct
70 char cmd[MAXCOMLEN + 1];
71 asection *data_section;
72 asection *stack_section;
73 asection *reg_section;
76 #define core_hdr(bfd) ((bfd)->tdata.hppabsd_core_data)
77 #define core_signal(bfd) (core_hdr(bfd)->sig)
78 #define core_command(bfd) (core_hdr(bfd)->cmd)
79 #define core_datasec(bfd) (core_hdr(bfd)->data_section)
80 #define core_stacksec(bfd) (core_hdr(bfd)->stack_section)
81 #define core_regsec(bfd) (core_hdr(bfd)->reg_section)
84 make_bfd_asection (abfd, name, flags, _raw_size, offset, alignment_power)
88 bfd_size_type _raw_size;
90 unsigned int alignment_power;
94 asect = bfd_make_section (abfd, name);
99 asect->_raw_size = _raw_size;
100 asect->filepos = offset;
101 asect->alignment_power = alignment_power;
107 hppabsd_core_make_empty_symbol (abfd)
110 asymbol *new = (asymbol *) bfd_zalloc (abfd, sizeof (asymbol));
116 static const bfd_target *
117 hppabsd_core_core_file_p (abfd)
122 struct hppabsd_core_struct *coredata;
125 /* Try to read in the u-area. We will need information from this
126 to know how to grok the rest of the core structures. */
127 val = bfd_read ((void *) &u, 1, sizeof u, abfd);
130 if (bfd_get_error () != bfd_error_system_call)
131 bfd_set_error (bfd_error_wrong_format);
135 /* Get the page size out of the u structure. This will be different
136 for PA 1.0 machines and PA 1.1 machines. Yuk! */
137 clicksz = u.u_pcb.pcb_pgsz;
139 /* clicksz must be a power of two >= 2k. */
141 || clicksz != (clicksz & -clicksz))
143 bfd_set_error (bfd_error_wrong_format);
148 /* Sanity checks. Make sure the size of the core file matches the
149 the size computed from information within the core itself. */
151 FILE *stream = bfd_cache_lookup (abfd);
153 if (stream == NULL || fstat (fileno (stream), &statbuf) < 0)
155 bfd_set_error (bfd_error_system_call);
158 if (NBPG * (UPAGES + u.u_dsize + u.u_ssize) > statbuf.st_size)
160 bfd_set_error (bfd_error_file_truncated);
163 if (clicksz * (UPAGES + u.u_dsize + u.u_ssize) < statbuf.st_size)
165 /* The file is too big. Maybe it's not a core file
166 or we otherwise have bad values for u_dsize and u_ssize). */
167 bfd_set_error (bfd_error_wrong_format);
172 /* OK, we believe you. You're a core file (sure, sure). */
174 coredata = (struct hppabsd_core_struct *)
175 bfd_zalloc (abfd, sizeof (struct hppabsd_core_struct));
179 /* Make the core data and available via the tdata part of the BFD. */
180 abfd->tdata.hppabsd_core_data = coredata;
182 /* Create the sections. */
183 core_stacksec (abfd) = make_bfd_asection (abfd, ".stack",
184 SEC_ALLOC + SEC_HAS_CONTENTS,
186 NBPG * (USIZE + KSTAKSIZE)
187 + clicksz * u.u_dsize, 2);
188 core_stacksec (abfd)->vma = USRSTACK;
190 core_datasec (abfd) = make_bfd_asection (abfd, ".data",
194 NBPG * (USIZE + KSTAKSIZE), 2);
195 core_datasec (abfd)->vma = UDATASEG;
197 core_regsec (abfd) = make_bfd_asection (abfd, ".reg",
201 core_regsec (abfd)->vma = 0;
203 strncpy (core_command (abfd), u.u_comm, MAXCOMLEN + 1);
204 core_signal (abfd) = u.u_code;
209 hppabsd_core_core_file_failing_command (abfd)
212 return core_command (abfd);
217 hppabsd_core_core_file_failing_signal (abfd)
220 return core_signal (abfd);
225 hppabsd_core_core_file_matches_executable_p (core_bfd, exec_bfd)
226 bfd *core_bfd, *exec_bfd;
228 /* There's no way to know this... */
233 #define hppabsd_core_get_symtab_upper_bound \
234 _bfd_nosymbols_get_symtab_upper_bound
235 #define hppabsd_core_get_symtab _bfd_nosymbols_get_symtab
236 #define hppabsd_core_print_symbol _bfd_nosymbols_print_symbol
237 #define hppabsd_core_get_symbol_info _bfd_nosymbols_get_symbol_info
238 #define hppabsd_core_bfd_is_local_label _bfd_nosymbols_bfd_is_local_label
239 #define hppabsd_core_get_lineno _bfd_nosymbols_get_lineno
240 #define hppabsd_core_find_nearest_line _bfd_nosymbols_find_nearest_line
241 #define hppabsd_core_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
242 #define hppabsd_core_read_minisymbols _bfd_nosymbols_read_minisymbols
243 #define hppabsd_core_minisymbol_to_symbol _bfd_nosymbols_minisymbol_to_symbol
245 /* If somebody calls any byte-swapping routines, shoot them. */
249 /* This way doesn't require any declaration for ANSI to fuck up. */
253 #define NO_GET ((bfd_vma (*) PARAMS (( const bfd_byte *))) swap_abort )
254 #define NO_PUT ((void (*) PARAMS ((bfd_vma, bfd_byte *))) swap_abort )
255 #define NO_SIGNED_GET \
256 ((bfd_signed_vma (*) PARAMS ((const bfd_byte *))) swap_abort )
258 const bfd_target hppabsd_core_vec =
261 bfd_target_unknown_flavour,
262 true, /* target byte order */
263 true, /* target headers byte order */
264 (HAS_RELOC | EXEC_P | /* object flags */
265 HAS_LINENO | HAS_DEBUG |
266 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
267 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
268 0, /* symbol prefix */
269 ' ', /* ar_pad_char */
270 16, /* ar_max_namelen */
271 NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit data */
272 NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit data */
273 NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit data */
274 NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit hdrs */
275 NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit hdrs */
276 NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit hdrs */
278 { /* bfd_check_format */
279 _bfd_dummy_target, /* unknown format */
280 _bfd_dummy_target, /* object file */
281 _bfd_dummy_target, /* archive */
282 hppabsd_core_core_file_p /* a core file */
284 { /* bfd_set_format */
285 bfd_false, bfd_false,
288 { /* bfd_write_contents */
289 bfd_false, bfd_false,
293 BFD_JUMP_TABLE_GENERIC (_bfd_generic),
294 BFD_JUMP_TABLE_COPY (_bfd_generic),
295 BFD_JUMP_TABLE_CORE (hppabsd_core),
296 BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
297 BFD_JUMP_TABLE_SYMBOLS (hppabsd_core),
298 BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
299 BFD_JUMP_TABLE_WRITE (_bfd_generic),
300 BFD_JUMP_TABLE_LINK (_bfd_nolink),
301 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
303 (PTR) 0 /* backend_data */