* elf.c (sym_is_global): Return a bfd_boolean.
[binutils.git] / bfd / hppabsd-core.c
blob67627e7a66648ac46c26bfb0427ee53c30ff7542
1 /* BFD back-end for HPPA BSD core files.
2 Copyright 1993, 1994, 1995, 1998, 1999, 2001, 2002, 2003, 2004, 2005
3 Free Software Foundation, Inc.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
21 Written by the Center for Software Science at the University of Utah
22 and by Cygnus Support.
24 The core file structure for the Utah 4.3BSD and OSF1 ports on the
25 PA is a mix between traditional cores and hpux cores -- just
26 different enough that supporting this format would tend to add
27 gross hacks to trad-core.c or hpux-core.c. So instead we keep any
28 gross hacks isolated to this file. */
30 /* This file can only be compiled on systems which use HPPA-BSD style
31 core files.
33 I would not expect this to be of use to any other host/target, but
34 you never know. */
36 #include "bfd.h"
37 #include "sysdep.h"
38 #include "libbfd.h"
40 #if defined (HOST_HPPABSD)
42 #include "machine/vmparam.h"
44 #include <sys/param.h>
45 #include <sys/dir.h>
46 #include <signal.h>
47 #include <machine/reg.h>
48 #include <sys/user.h> /* After a.out.h */
49 #include <sys/file.h>
51 static asection *make_bfd_asection
52 PARAMS ((bfd *, const char *, flagword, bfd_size_type, file_ptr,
53 unsigned int));
54 static const bfd_target *hppabsd_core_core_file_p
55 PARAMS ((bfd *));
56 static char *hppabsd_core_core_file_failing_command
57 PARAMS ((bfd *));
58 static int hppabsd_core_core_file_failing_signal
59 PARAMS ((bfd *));
60 #define hppabsd_core_core_file_matches_executable_p generic_core_file_matches_executable_p
61 static void swap_abort
62 PARAMS ((void));
64 /* These are stored in the bfd's tdata. */
66 struct hppabsd_core_struct
68 int sig;
69 char cmd[MAXCOMLEN + 1];
70 asection *data_section;
71 asection *stack_section;
72 asection *reg_section;
75 #define core_hdr(bfd) ((bfd)->tdata.hppabsd_core_data)
76 #define core_signal(bfd) (core_hdr(bfd)->sig)
77 #define core_command(bfd) (core_hdr(bfd)->cmd)
78 #define core_datasec(bfd) (core_hdr(bfd)->data_section)
79 #define core_stacksec(bfd) (core_hdr(bfd)->stack_section)
80 #define core_regsec(bfd) (core_hdr(bfd)->reg_section)
82 static asection *
83 make_bfd_asection (abfd, name, flags, size, offset, alignment_power)
84 bfd *abfd;
85 const char *name;
86 flagword flags;
87 bfd_size_type size;
88 file_ptr offset;
89 unsigned int alignment_power;
91 asection *asect;
93 asect = bfd_make_section (abfd, name);
94 if (!asect)
95 return NULL;
97 asect->flags = flags;
98 asect->size = size;
99 asect->filepos = offset;
100 asect->alignment_power = alignment_power;
102 return asect;
105 static const bfd_target *
106 hppabsd_core_core_file_p (abfd)
107 bfd *abfd;
109 int val;
110 struct user u;
111 struct hppabsd_core_struct *coredata;
112 int clicksz;
114 /* Try to read in the u-area. We will need information from this
115 to know how to grok the rest of the core structures. */
116 val = bfd_bread ((void *) &u, (bfd_size_type) sizeof u, abfd);
117 if (val != sizeof u)
119 if (bfd_get_error () != bfd_error_system_call)
120 bfd_set_error (bfd_error_wrong_format);
121 return NULL;
124 /* Get the page size out of the u structure. This will be different
125 for PA 1.0 machines and PA 1.1 machines. Yuk! */
126 clicksz = u.u_pcb.pcb_pgsz;
128 /* clicksz must be a power of two >= 2k. */
129 if (clicksz < 0x800
130 || clicksz != (clicksz & -clicksz))
132 bfd_set_error (bfd_error_wrong_format);
133 return NULL;
136 /* Sanity checks. Make sure the size of the core file matches the
137 the size computed from information within the core itself. */
139 struct stat statbuf;
141 if (bfd_stat (abfd, &statbuf) < 0)
142 return NULL;
144 if (NBPG * (UPAGES + u.u_dsize + u.u_ssize) > statbuf.st_size)
146 bfd_set_error (bfd_error_file_truncated);
147 return NULL;
149 if (clicksz * (UPAGES + u.u_dsize + u.u_ssize) < statbuf.st_size)
151 /* The file is too big. Maybe it's not a core file
152 or we otherwise have bad values for u_dsize and u_ssize). */
153 bfd_set_error (bfd_error_wrong_format);
154 return NULL;
158 /* OK, we believe you. You're a core file (sure, sure). */
160 coredata = (struct hppabsd_core_struct *)
161 bfd_zalloc (abfd, (bfd_size_type) sizeof (struct hppabsd_core_struct));
162 if (!coredata)
163 return NULL;
165 /* Make the core data and available via the tdata part of the BFD. */
166 abfd->tdata.hppabsd_core_data = coredata;
168 /* Create the sections. */
169 core_stacksec (abfd) = make_bfd_asection (abfd, ".stack",
170 SEC_ALLOC + SEC_HAS_CONTENTS,
171 clicksz * u.u_ssize,
172 NBPG * (USIZE + KSTAKSIZE)
173 + clicksz * u.u_dsize, 2);
174 if (core_stacksec (abfd) == NULL)
175 goto fail;
176 core_stacksec (abfd)->vma = USRSTACK;
178 core_datasec (abfd) = make_bfd_asection (abfd, ".data",
179 SEC_ALLOC + SEC_LOAD
180 + SEC_HAS_CONTENTS,
181 clicksz * u.u_dsize,
182 NBPG * (USIZE + KSTAKSIZE), 2);
183 if (core_datasec (abfd) == NULL)
184 goto fail;
185 core_datasec (abfd)->vma = UDATASEG;
187 core_regsec (abfd) = make_bfd_asection (abfd, ".reg",
188 SEC_HAS_CONTENTS,
189 KSTAKSIZE * NBPG,
190 NBPG * USIZE, 2);
191 if (core_regsec (abfd) == NULL)
192 goto fail;
193 core_regsec (abfd)->vma = 0;
195 strncpy (core_command (abfd), u.u_comm, MAXCOMLEN + 1);
196 core_signal (abfd) = u.u_code;
197 return abfd->xvec;
199 fail:
200 bfd_release (abfd, abfd->tdata.any);
201 abfd->tdata.any = NULL;
202 bfd_section_list_clear (abfd);
203 return NULL;
206 static char *
207 hppabsd_core_core_file_failing_command (abfd)
208 bfd *abfd;
210 return core_command (abfd);
213 static int
214 hppabsd_core_core_file_failing_signal (abfd)
215 bfd *abfd;
217 return core_signal (abfd);
220 /* If somebody calls any byte-swapping routines, shoot them. */
221 static void
222 swap_abort ()
224 /* This way doesn't require any declaration for ANSI to fuck up. */
225 abort ();
228 #define NO_GET ((bfd_vma (*) (const void *)) swap_abort)
229 #define NO_PUT ((void (*) (bfd_vma, void *)) swap_abort)
230 #define NO_GETS ((bfd_signed_vma (*) (const void *)) swap_abort)
231 #define NO_GET64 ((bfd_uint64_t (*) (const void *)) swap_abort)
232 #define NO_PUT64 ((void (*) (bfd_uint64_t, void *)) swap_abort)
233 #define NO_GETS64 ((bfd_int64_t (*) (const void *)) swap_abort)
235 const bfd_target hppabsd_core_vec =
237 "hppabsd-core",
238 bfd_target_unknown_flavour,
239 BFD_ENDIAN_BIG, /* target byte order */
240 BFD_ENDIAN_BIG, /* target headers byte order */
241 (HAS_RELOC | EXEC_P | /* object flags */
242 HAS_LINENO | HAS_DEBUG |
243 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
244 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
245 0, /* symbol prefix */
246 ' ', /* ar_pad_char */
247 16, /* ar_max_namelen */
248 NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit data */
249 NO_GET, NO_GETS, NO_PUT, /* 32 bit data */
250 NO_GET, NO_GETS, NO_PUT, /* 16 bit data */
251 NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit hdrs */
252 NO_GET, NO_GETS, NO_PUT, /* 32 bit hdrs */
253 NO_GET, NO_GETS, NO_PUT, /* 16 bit hdrs */
255 { /* bfd_check_format */
256 _bfd_dummy_target, /* unknown format */
257 _bfd_dummy_target, /* object file */
258 _bfd_dummy_target, /* archive */
259 hppabsd_core_core_file_p /* a core file */
261 { /* bfd_set_format */
262 bfd_false, bfd_false,
263 bfd_false, bfd_false
265 { /* bfd_write_contents */
266 bfd_false, bfd_false,
267 bfd_false, bfd_false
270 BFD_JUMP_TABLE_GENERIC (_bfd_generic),
271 BFD_JUMP_TABLE_COPY (_bfd_generic),
272 BFD_JUMP_TABLE_CORE (hppabsd_core),
273 BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
274 BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
275 BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
276 BFD_JUMP_TABLE_WRITE (_bfd_generic),
277 BFD_JUMP_TABLE_LINK (_bfd_nolink),
278 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
280 NULL,
282 (PTR) 0 /* backend_data */
284 #endif