1 /* BFD back-end for HPPA BSD core files.
2 Copyright (C) 1993-2019 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 3 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., 51 Franklin Street - Fifth Floor, Boston,
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
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"
44 #include <sys/param.h>
47 #include <machine/reg.h>
48 #include <sys/user.h> /* After a.out.h */
51 #define hppabsd_core_core_file_matches_executable_p generic_core_file_matches_executable_p
52 #define hppabsd_core_core_file_pid _bfd_nocore_core_file_pid
54 /* These are stored in the bfd's tdata. */
56 struct hppabsd_core_struct
59 char cmd[MAXCOMLEN + 1];
60 asection *data_section;
61 asection *stack_section;
62 asection *reg_section;
65 #define core_hdr(bfd) ((bfd)->tdata.hppabsd_core_data)
66 #define core_signal(bfd) (core_hdr(bfd)->sig)
67 #define core_command(bfd) (core_hdr(bfd)->cmd)
68 #define core_datasec(bfd) (core_hdr(bfd)->data_section)
69 #define core_stacksec(bfd) (core_hdr(bfd)->stack_section)
70 #define core_regsec(bfd) (core_hdr(bfd)->reg_section)
73 make_bfd_asection (bfd *abfd,
78 unsigned int alignment_power)
82 asect = bfd_make_section_with_flags (abfd, name, flags);
87 asect->filepos = offset;
88 asect->alignment_power = alignment_power;
93 static const bfd_target *
94 hppabsd_core_core_file_p (bfd *abfd)
98 struct hppabsd_core_struct *coredata;
101 /* Try to read in the u-area. We will need information from this
102 to know how to grok the rest of the core structures. */
103 val = bfd_bread ((void *) &u, (bfd_size_type) sizeof u, abfd);
106 if (bfd_get_error () != bfd_error_system_call)
107 bfd_set_error (bfd_error_wrong_format);
111 /* Get the page size out of the u structure. This will be different
112 for PA 1.0 machines and PA 1.1 machines. Yuk! */
113 clicksz = u.u_pcb.pcb_pgsz;
115 /* clicksz must be a power of two >= 2k. */
117 || clicksz != (clicksz & -clicksz))
119 bfd_set_error (bfd_error_wrong_format);
123 /* Sanity checks. Make sure the size of the core file matches the
124 the size computed from information within the core itself. */
128 if (bfd_stat (abfd, &statbuf) < 0)
131 if (NBPG * (UPAGES + u.u_dsize + u.u_ssize) > statbuf.st_size)
133 bfd_set_error (bfd_error_file_truncated);
136 if (clicksz * (UPAGES + u.u_dsize + u.u_ssize) < statbuf.st_size)
138 /* The file is too big. Maybe it's not a core file
139 or we otherwise have bad values for u_dsize and u_ssize). */
140 bfd_set_error (bfd_error_wrong_format);
145 /* OK, we believe you. You're a core file (sure, sure). */
147 coredata = (struct hppabsd_core_struct *)
148 bfd_zalloc (abfd, (bfd_size_type) sizeof (struct hppabsd_core_struct));
152 /* Make the core data and available via the tdata part of the BFD. */
153 abfd->tdata.hppabsd_core_data = coredata;
155 /* Create the sections. */
156 core_stacksec (abfd) = make_bfd_asection (abfd, ".stack",
157 SEC_ALLOC + SEC_HAS_CONTENTS,
159 NBPG * (USIZE + KSTAKSIZE)
160 + clicksz * u.u_dsize, 2);
161 if (core_stacksec (abfd) == NULL)
163 core_stacksec (abfd)->vma = USRSTACK;
165 core_datasec (abfd) = make_bfd_asection (abfd, ".data",
169 NBPG * (USIZE + KSTAKSIZE), 2);
170 if (core_datasec (abfd) == NULL)
172 core_datasec (abfd)->vma = UDATASEG;
174 core_regsec (abfd) = make_bfd_asection (abfd, ".reg",
178 if (core_regsec (abfd) == NULL)
180 core_regsec (abfd)->vma = 0;
182 strncpy (core_command (abfd), u.u_comm, MAXCOMLEN + 1);
183 core_signal (abfd) = u.u_code;
187 bfd_release (abfd, abfd->tdata.any);
188 abfd->tdata.any = NULL;
189 bfd_section_list_clear (abfd);
194 hppabsd_core_core_file_failing_command (bfd *abfd)
196 return core_command (abfd);
200 hppabsd_core_core_file_failing_signal (bfd *abfd)
202 return core_signal (abfd);
205 /* If somebody calls any byte-swapping routines, shoot them. */
209 /* This way doesn't require any declaration for ANSI to fuck up. */
213 #define NO_GET ((bfd_vma (*) (const void *)) swap_abort)
214 #define NO_PUT ((void (*) (bfd_vma, void *)) swap_abort)
215 #define NO_GETS ((bfd_signed_vma (*) (const void *)) swap_abort)
216 #define NO_GET64 ((bfd_uint64_t (*) (const void *)) swap_abort)
217 #define NO_PUT64 ((void (*) (bfd_uint64_t, void *)) swap_abort)
218 #define NO_GETS64 ((bfd_int64_t (*) (const void *)) swap_abort)
220 const bfd_target core_hppabsd_vec =
223 bfd_target_unknown_flavour,
224 BFD_ENDIAN_BIG, /* target byte order */
225 BFD_ENDIAN_BIG, /* target headers byte order */
226 (HAS_RELOC | EXEC_P | /* object flags */
227 HAS_LINENO | HAS_DEBUG |
228 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
229 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
230 0, /* symbol prefix */
231 ' ', /* ar_pad_char */
232 16, /* ar_max_namelen */
233 NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit data */
234 NO_GET, NO_GETS, NO_PUT, /* 32 bit data */
235 NO_GET, NO_GETS, NO_PUT, /* 16 bit data */
236 NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit hdrs */
237 NO_GET, NO_GETS, NO_PUT, /* 32 bit hdrs */
238 NO_GET, NO_GETS, NO_PUT, /* 16 bit hdrs */
240 { /* bfd_check_format */
241 _bfd_dummy_target, /* unknown format */
242 _bfd_dummy_target, /* object file */
243 _bfd_dummy_target, /* archive */
244 hppabsd_core_core_file_p /* a core file */
246 { /* bfd_set_format */
247 _bfd_bool_bfd_false_error,
248 _bfd_bool_bfd_false_error,
249 _bfd_bool_bfd_false_error,
250 _bfd_bool_bfd_false_error
252 { /* bfd_write_contents */
253 _bfd_bool_bfd_false_error,
254 _bfd_bool_bfd_false_error,
255 _bfd_bool_bfd_false_error,
256 _bfd_bool_bfd_false_error
259 BFD_JUMP_TABLE_GENERIC (_bfd_generic),
260 BFD_JUMP_TABLE_COPY (_bfd_generic),
261 BFD_JUMP_TABLE_CORE (hppabsd_core),
262 BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
263 BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
264 BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
265 BFD_JUMP_TABLE_WRITE (_bfd_generic),
266 BFD_JUMP_TABLE_LINK (_bfd_nolink),
267 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
271 NULL /* backend_data */