Wed Mar 30 16:25:41 1994 Ian Lance Taylor (ian@tweedledumb.cygnus.com)
[deliverable/binutils-gdb.git] / bfd / hpux-core.c
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1/* BFD back-end for HP/UX core files.
2 Copyright 1993 Free Software Foundation, Inc.
3 Written by Stu Grossman, Cygnus Support.
4 Converted to back-end form by Ian Lance Taylor, Cygnus SUpport
5
6This file is part of BFD, the Binary File Descriptor library.
7
8This program is free software; you can redistribute it and/or modify
9it under the terms of the GNU General Public License as published by
10the Free Software Foundation; either version 2 of the License, or
11(at your option) any later version.
12
13This program is distributed in the hope that it will be useful,
14but WITHOUT ANY WARRANTY; without even the implied warranty of
15MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16GNU General Public License for more details.
17
18You should have received a copy of the GNU General Public License
19along with this program; if not, write to the Free Software
20Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
21
22/* This file can only be compiled on systems which use HP/UX style
23 core files. In the config/XXXXXX.mh file for such a system add
24 HDEFINES=-DHPUX_CORE
25 HDEPFILES=hpux-core.o
26 */
27
28#include "bfd.h"
29#include "sysdep.h"
30#include "libbfd.h"
31
32#if defined (HOST_HPPAHPUX) || defined (HOST_HP300HPUX)
33
34/* FIXME: sys/core.h doesn't exist for HPUX version 7. HPUX version
35 5, 6, and 7 core files seem to be standard trad-core.c type core
36 files; can we just use trad-core.c in addition to this file? */
37
38#include <sys/core.h>
39#include <sys/utsname.h>
40
41#endif /* HOST_HPPAHPUX */
42
43#ifdef HOST_HPPABSD
44
45/* Not a very swift place to put it, but that's where the BSD port
46 puts them. */
47#include "/hpux/usr/include/sys/core.h"
48
49#endif /* HOST_HPPABSD */
50
51#include <stdio.h>
52#include <sys/types.h>
53#include <sys/param.h>
54#include <sys/dir.h>
55#include <signal.h>
56#include <machine/reg.h>
57#include <sys/user.h> /* After a.out.h */
58#include <sys/file.h>
59#include <errno.h>
60
61/* These are stored in the bfd's tdata */
62
63struct hpux_core_struct
64{
65 int sig;
66 char cmd[MAXCOMLEN + 1];
67 asection *data_section;
68 asection *stack_section;
69 asection *reg_section;
70};
71
72#define core_hdr(bfd) ((bfd)->tdata.hpux_core_data)
73#define core_signal(bfd) (core_hdr(bfd)->sig)
74#define core_command(bfd) (core_hdr(bfd)->cmd)
75#define core_datasec(bfd) (core_hdr(bfd)->data_section)
76#define core_stacksec(bfd) (core_hdr(bfd)->stack_section)
77#define core_regsec(bfd) (core_hdr(bfd)->reg_section)
78
79static asection *
80make_bfd_asection (abfd, name, flags, _raw_size, vma, alignment_power)
81 bfd *abfd;
82 CONST char *name;
83 flagword flags;
84 bfd_size_type _raw_size;
85 bfd_vma vma;
86 unsigned int alignment_power;
87{
88 asection *asect;
89
90 asect = bfd_make_section (abfd, name);
91 if (!asect)
92 return NULL;
93
94 asect->flags = flags;
95 asect->_raw_size = _raw_size;
96 asect->vma = vma;
97 asect->filepos = bfd_tell (abfd);
98 asect->alignment_power = alignment_power;
99
100 return asect;
101}
102
103static asymbol *
104hpux_core_make_empty_symbol (abfd)
105 bfd *abfd;
106{
107 asymbol *new = (asymbol *) bfd_zalloc (abfd, sizeof (asymbol));
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108 if (new)
109 new->the_bfd = abfd;
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110 return new;
111}
112
113static bfd_target *
114hpux_core_core_file_p (abfd)
115 bfd *abfd;
116{
117 core_hdr (abfd) = (struct hpux_core_struct *)
118 bfd_zalloc (abfd, sizeof (struct hpux_core_struct));
119 if (!core_hdr (abfd))
120 return NULL;
121
122 while (1)
123 {
124 int val;
125 struct corehead core_header;
126
127 val = bfd_read ((void *) &core_header, 1, sizeof core_header, abfd);
128 if (val <= 0)
129 break;
130 switch (core_header.type)
131 {
132 case CORE_KERNEL:
133 case CORE_FORMAT:
134 bfd_seek (abfd, core_header.len, SEEK_CUR); /* Just skip this */
135 break;
136 case CORE_EXEC:
137 {
138 struct proc_exec proc_exec;
139 bfd_read ((void *) &proc_exec, 1, core_header.len, abfd);
140 strncpy (core_command (abfd), proc_exec.cmd, MAXCOMLEN + 1);
141 }
142 break;
143 case CORE_PROC:
144 {
145 struct proc_info proc_info;
146 core_regsec (abfd) = make_bfd_asection (abfd, ".reg",
147 SEC_ALLOC + SEC_HAS_CONTENTS,
148 core_header.len,
149 (int) &proc_info - (int) &proc_info.hw_regs,
150 2);
151 bfd_read (&proc_info, 1, core_header.len, abfd);
152 core_signal (abfd) = proc_info.sig;
153 }
154 if (!core_regsec (abfd))
155 return NULL;
156 break;
157 case CORE_DATA:
158 core_datasec (abfd) = make_bfd_asection (abfd, ".data",
159 SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS,
160 core_header.len,
161 core_header.addr,
162 2);
163 if (!core_datasec (abfd))
164 return NULL;
165 bfd_seek (abfd, core_header.len, SEEK_CUR);
166 break;
167 case CORE_STACK:
168 core_stacksec (abfd) = make_bfd_asection (abfd, ".stack",
169 SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS,
170 core_header.len,
171 core_header.addr,
172 2);
173 if (!core_stacksec (abfd))
174 return NULL;
175 bfd_seek (abfd, core_header.len, SEEK_CUR);
176 break;
177 default:
178 /* Falling into here is an error and should prevent this
179 target from matching. That way systems which use hpux
180 cores along with other formats can still work. */
181 return 0;
182 }
183 }
184
185 /* OK, we believe you. You're a core file (sure, sure). */
186
187 return abfd->xvec;
188}
189
190static char *
191hpux_core_core_file_failing_command (abfd)
192 bfd *abfd;
193{
194 return core_command (abfd);
195}
196
197/* ARGSUSED */
198static int
199hpux_core_core_file_failing_signal (abfd)
200 bfd *abfd;
201{
202 return core_signal (abfd);
203}
204
205/* ARGSUSED */
206static boolean
207hpux_core_core_file_matches_executable_p (core_bfd, exec_bfd)
208 bfd *core_bfd, *exec_bfd;
209{
210 return true; /* FIXME, We have no way of telling at this point */
211}
212\f
213/* No archive file support via this BFD */
214#define hpux_core_openr_next_archived_file bfd_generic_openr_next_archived_file
215#define hpux_core_generic_stat_arch_elt bfd_generic_stat_arch_elt
216#define hpux_core_slurp_armap bfd_false
217#define hpux_core_slurp_extended_name_table bfd_true
218#define hpux_core_write_armap (boolean (*) PARAMS \
219 ((bfd *arch, unsigned int elength, struct orl *map, \
220 unsigned int orl_count, int stridx))) bfd_false
221#define hpux_core_truncate_arname bfd_dont_truncate_arname
222
223#define hpux_core_close_and_cleanup bfd_generic_close_and_cleanup
224#define hpux_core_set_section_contents (boolean (*) PARAMS \
225 ((bfd *abfd, asection *section, PTR data, file_ptr offset, \
326e32d7 226 bfd_size_type count))) bfd_generic_set_section_contents
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227#define hpux_core_get_section_contents bfd_generic_get_section_contents
228#define hpux_core_new_section_hook (boolean (*) PARAMS \
229 ((bfd *, sec_ptr))) bfd_true
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230#define hpux_core_get_symtab_upper_bound bfd_0l
231#define hpux_core_get_symtab (long (*) PARAMS \
232 ((bfd *, struct symbol_cache_entry **))) bfd_0l
233#define hpux_core_get_reloc_upper_bound (long (*) PARAMS \
234 ((bfd *, sec_ptr))) bfd_0l
235#define hpux_core_canonicalize_reloc (long (*) PARAMS \
236 ((bfd *, sec_ptr, arelent **, struct symbol_cache_entry**))) bfd_0l
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237#define hpux_core_print_symbol (void (*) PARAMS \
238 ((bfd *, PTR, struct symbol_cache_entry *, \
239 bfd_print_symbol_type))) bfd_false
240#define hpux_core_get_symbol_info (void (*) PARAMS \
241 ((bfd *, struct symbol_cache_entry *, \
242 symbol_info *))) bfd_false
243#define hpux_core_get_lineno (alent * (*) PARAMS \
244 ((bfd *, struct symbol_cache_entry *))) bfd_nullvoidptr
245#define hpux_core_set_arch_mach (boolean (*) PARAMS \
246 ((bfd *, enum bfd_architecture, unsigned long))) bfd_false
247#define hpux_core_find_nearest_line (boolean (*) PARAMS \
248 ((bfd *abfd, struct sec *section, \
249 struct symbol_cache_entry **symbols,bfd_vma offset, \
250 CONST char **file, CONST char **func, unsigned int *line))) bfd_false
251#define hpux_core_sizeof_headers (int (*) PARAMS \
252 ((bfd *, boolean))) bfd_0
253
254#define hpux_core_bfd_debug_info_start bfd_void
255#define hpux_core_bfd_debug_info_end bfd_void
256#define hpux_core_bfd_debug_info_accumulate (void (*) PARAMS \
257 ((bfd *, struct sec *))) bfd_void
258#define hpux_core_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
259#define hpux_core_bfd_relax_section bfd_generic_relax_section
260#define hpux_core_bfd_reloc_type_lookup \
261 ((CONST struct reloc_howto_struct *(*) PARAMS ((bfd *, bfd_reloc_code_real_type))) bfd_nullvoidptr)
262#define hpux_core_bfd_make_debug_symbol \
263 ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)
264#define hpux_core_bfd_link_hash_table_create \
265 ((struct bfd_link_hash_table *(*) PARAMS ((bfd *))) bfd_nullvoidptr)
266#define hpux_core_bfd_link_add_symbols \
267 ((boolean (*) PARAMS ((bfd *, struct bfd_link_info *))) bfd_false)
268#define hpux_core_bfd_final_link \
269 ((boolean (*) PARAMS ((bfd *, struct bfd_link_info *))) bfd_false)
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270#define hpux_core_bfd_copy_private_section_data \
271 ((boolean (*) PARAMS ((bfd *, asection *, bfd *, asection *))) bfd_false)
272#define hpux_core_bfd_copy_private_bfd_data \
273 ((boolean (*) PARAMS ((bfd *, bfd *))) bfd_false)
274#define hpux_core_bfd_is_local_label \
275 ((boolean (*) PARAMS ((bfd *, asymbol *))) bfd_false)
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276
277/* If somebody calls any byte-swapping routines, shoot them. */
278void
279swap_abort()
280{
281 abort(); /* This way doesn't require any declaration for ANSI to fuck up */
282}
326e32d7 283#define NO_GET ((bfd_vma (*) PARAMS (( const bfd_byte *))) swap_abort )
4c3721d5 284#define NO_PUT ((void (*) PARAMS ((bfd_vma, bfd_byte *))) swap_abort )
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285#define NO_SIGNED_GET \
286 ((bfd_signed_vma (*) PARAMS ((const bfd_byte *))) swap_abort )
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287
288bfd_target hpux_core_vec =
289 {
290 "hpux-core",
291 bfd_target_unknown_flavour,
292 true, /* target byte order */
293 true, /* target headers byte order */
294 (HAS_RELOC | EXEC_P | /* object flags */
295 HAS_LINENO | HAS_DEBUG |
296 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
297 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
298 0, /* symbol prefix */
299 ' ', /* ar_pad_char */
300 16, /* ar_max_namelen */
301 3, /* minimum alignment power */
302 NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit data */
303 NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit data */
304 NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit data */
305 NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit hdrs */
306 NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit hdrs */
307 NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit hdrs */
308
309 { /* bfd_check_format */
310 _bfd_dummy_target, /* unknown format */
311 _bfd_dummy_target, /* object file */
312 _bfd_dummy_target, /* archive */
313 hpux_core_core_file_p /* a core file */
314 },
315 { /* bfd_set_format */
316 bfd_false, bfd_false,
317 bfd_false, bfd_false
318 },
319 { /* bfd_write_contents */
320 bfd_false, bfd_false,
321 bfd_false, bfd_false
322 },
323
324 JUMP_TABLE(hpux_core),
325 (PTR) 0 /* backend_data */
326};
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