1 /* BFD back-end for HPPA BSD core files.
2 Copyright 1993 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., 675 Mass Ave, Cambridge, MA 02139, 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
31 core files. In the config/XXXXXX.mh file for such a system add
32 HDEFINES=-DHPPABSD_CORE
33 HDEPFILES=hppabsd-core.o
35 I would not expect this to be of use to any other host/target, but
42 #if defined (HOST_HPPABSD)
44 #include "machine/vmparam.h"
47 #include <sys/types.h>
48 #include <sys/param.h>
51 #include <machine/reg.h>
52 #include <sys/user.h> /* After a.out.h */
56 static asection *make_bfd_asection PARAMS ((bfd *, CONST char *,
57 flagword, bfd_size_type,
58 bfd_vma, unsigned int));
59 static asymbol *hppabsd_core_make_empty_symbol PARAMS ((bfd *));
60 static bfd_target *hppabsd_core_core_file_p PARAMS ((bfd *));
61 static char *hppabsd_core_core_file_failing_command PARAMS ((bfd *));
62 static int hppabsd_core_core_file_failing_signal PARAMS ((bfd *));
63 static boolean hppabsd_core_core_file_matches_executable_p
64 PARAMS ((bfd *, bfd *));
65 static void swap_abort PARAMS ((void));
67 /* These are stored in the bfd's tdata. */
69 struct hppabsd_core_struct
72 char cmd[MAXCOMLEN + 1];
73 asection *data_section;
74 asection *stack_section;
75 asection *reg_section;
78 #define core_hdr(bfd) ((bfd)->tdata.hppabsd_core_data)
79 #define core_signal(bfd) (core_hdr(bfd)->sig)
80 #define core_command(bfd) (core_hdr(bfd)->cmd)
81 #define core_datasec(bfd) (core_hdr(bfd)->data_section)
82 #define core_stacksec(bfd) (core_hdr(bfd)->stack_section)
83 #define core_regsec(bfd) (core_hdr(bfd)->reg_section)
86 make_bfd_asection (abfd, name, flags, _raw_size, vma, alignment_power)
90 bfd_size_type _raw_size;
92 unsigned int alignment_power;
96 asect = bfd_make_section (abfd, name);
100 asect->flags = flags;
101 asect->_raw_size = _raw_size;
103 asect->filepos = bfd_tell (abfd);
104 asect->alignment_power = alignment_power;
110 hppabsd_core_make_empty_symbol (abfd)
113 asymbol *new = (asymbol *) bfd_zalloc (abfd, sizeof (asymbol));
120 hppabsd_core_core_file_p (abfd)
125 struct hppabsd_core_struct *coredata;
128 /* Try to read in the u-area. We will need information from this
129 to know how to grok the rest of the core structures. */
130 val = bfd_read ((void *) &u, 1, sizeof u, abfd);
133 if (bfd_get_error () != bfd_error_system_call)
134 bfd_set_error (bfd_error_wrong_format);
138 /* Get the page size out of the u structure. This will be different
139 for PA 1.0 machines and PA 1.1 machines. Yuk! */
140 clicksz = u.u_pcb.pcb_pgsz;
142 /* Sanity checks. Make sure the size of the core file matches the
143 the size computed from information within the core itself. */
145 FILE *stream = bfd_cache_lookup (abfd);
147 if (stream == NULL || fstat (fileno (stream), &statbuf) < 0)
149 bfd_set_error (bfd_error_system_call);
152 if (NBPG * (UPAGES + u.u_dsize + u.u_ssize) > statbuf.st_size)
154 bfd_set_error (bfd_error_file_truncated);
157 if (clicksz * (UPAGES + u.u_dsize + u.u_ssize) < statbuf.st_size)
159 /* The file is too big. Maybe it's not a core file
160 or we otherwise have bad values for u_dsize and u_ssize). */
161 bfd_set_error (bfd_error_wrong_format);
166 /* OK, we believe you. You're a core file (sure, sure). */
168 coredata = (struct hppabsd_core_struct *)
169 bfd_zalloc (abfd, sizeof (struct hppabsd_core_struct));
172 bfd_set_error (bfd_error_no_memory);
176 /* Make the core data and available via the tdata part of the BFD. */
177 abfd->tdata.hppabsd_core_data = coredata;
179 /* Create the sections. */
180 core_stacksec (abfd) = make_bfd_asection (abfd, ".stack",
181 SEC_ALLOC + SEC_HAS_CONTENTS,
183 NBPG * (USIZE + KSTAKSIZE)
184 + clicksz * u.u_dsize, 2);
185 core_stacksec (abfd)->vma = USRSTACK;
187 core_datasec (abfd) = make_bfd_asection (abfd, ".data",
191 NBPG * (USIZE + KSTAKSIZE), 2);
192 core_datasec (abfd)->vma = UDATASEG;
194 core_regsec (abfd) = make_bfd_asection (abfd, ".reg",
195 SEC_ALLOC + SEC_HAS_CONTENTS,
198 core_regsec (abfd)->vma = 0;
200 strncpy (core_command (abfd), u.u_comm, MAXCOMLEN + 1);
201 core_signal (abfd) = u.u_code;
206 hppabsd_core_core_file_failing_command (abfd)
209 return core_command (abfd);
214 hppabsd_core_core_file_failing_signal (abfd)
217 return core_signal (abfd);
222 hppabsd_core_core_file_matches_executable_p (core_bfd, exec_bfd)
223 bfd *core_bfd, *exec_bfd;
225 /* There's no way to know this... */
230 #define hppabsd_core_get_symtab_upper_bound \
231 _bfd_nosymbols_get_symtab_upper_bound
232 #define hppabsd_core_get_symtab _bfd_nosymbols_get_symtab
233 #define hppabsd_core_print_symbol _bfd_nosymbols_print_symbol
234 #define hppabsd_core_get_symbol_info _bfd_nosymbols_get_symbol_info
235 #define hppabsd_core_bfd_is_local_label _bfd_nosymbols_bfd_is_local_label
236 #define hppabsd_core_get_lineno _bfd_nosymbols_get_lineno
237 #define hppabsd_core_find_nearest_line _bfd_nosymbols_find_nearest_line
238 #define hppabsd_core_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
240 /* If somebody calls any byte-swapping routines, shoot them. */
244 /* This way doesn't require any declaration for ANSI to fuck up. */
248 #define NO_GET ((bfd_vma (*) PARAMS (( const bfd_byte *))) swap_abort )
249 #define NO_PUT ((void (*) PARAMS ((bfd_vma, bfd_byte *))) swap_abort )
250 #define NO_SIGNED_GET \
251 ((bfd_signed_vma (*) PARAMS ((const bfd_byte *))) swap_abort )
253 bfd_target hppabsd_core_vec =
256 bfd_target_unknown_flavour,
257 true, /* target byte order */
258 true, /* target headers byte order */
259 (HAS_RELOC | EXEC_P | /* object flags */
260 HAS_LINENO | HAS_DEBUG |
261 HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
262 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
263 0, /* symbol prefix */
264 ' ', /* ar_pad_char */
265 16, /* ar_max_namelen */
266 3, /* minimum alignment power */
267 NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit data */
268 NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit data */
269 NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit data */
270 NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit hdrs */
271 NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit hdrs */
272 NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit hdrs */
274 { /* bfd_check_format */
275 _bfd_dummy_target, /* unknown format */
276 _bfd_dummy_target, /* object file */
277 _bfd_dummy_target, /* archive */
278 hppabsd_core_core_file_p /* a core file */
280 { /* bfd_set_format */
281 bfd_false, bfd_false,
284 { /* bfd_write_contents */
285 bfd_false, bfd_false,
289 BFD_JUMP_TABLE_GENERIC (_bfd_generic),
290 BFD_JUMP_TABLE_COPY (_bfd_generic),
291 BFD_JUMP_TABLE_CORE (hppabsd_core),
292 BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
293 BFD_JUMP_TABLE_SYMBOLS (hppabsd_core),
294 BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
295 BFD_JUMP_TABLE_WRITE (_bfd_generic),
296 BFD_JUMP_TABLE_LINK (_bfd_nolink),
298 (PTR) 0 /* backend_data */