1 /* BFD back end for Lynx core files
2 Copyright 1993 Free Software Foundation, Inc.
3 Written by Stu Grossman of Cygnus Support.
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
25 #ifdef HOST_LYNX /* Core files only work locally for now */
27 /* These are stored in the bfd's tdata */
29 struct lynx_core_struct
35 #define core_hdr(bfd) ((bfd)->tdata.lynx_core_data)
36 #define core_signal(bfd) (core_hdr(bfd)->sig)
37 #define core_command(bfd) (core_hdr(bfd)->cmd)
39 /* Handle Lynx core dump file. */
42 make_bfd_asection (abfd, name, flags, _raw_size, vma, filepos)
46 bfd_size_type _raw_size;
53 newname = bfd_alloc (abfd, strlen (name) + 1);
57 strcpy (newname, name);
59 asect = bfd_make_section (abfd, newname);
64 asect->_raw_size = _raw_size;
66 asect->filepos = filepos;
67 asect->alignment_power = 2;
74 lynx_core_file_p (abfd)
85 pagesize = getpagesize (); /* Serious cross-target issue here... This
86 really needs to come from a system-specific
89 /* Get the pss entry from the core file */
91 bfd_seek (abfd, 0, SEEK_SET);
93 val = bfd_read ((void *)&pss, 1, sizeof pss, abfd);
94 if (val != sizeof pss)
96 /* Too small to be a core file */
97 bfd_error = wrong_format;
101 core_hdr (abfd) = (struct lynx_core_struct *)
102 bfd_zalloc (abfd, sizeof (struct lynx_core_struct));
104 if (!core_hdr (abfd))
106 bfd_error = no_memory;
110 strncpy (core_command (abfd), pss.pname, PNMLEN + 1);
112 /* Compute the size of the thread contexts */
114 tcontext_size = pss.threadcnt * sizeof (core_st_t);
116 /* Allocate space for the thread contexts */
118 threadp = (core_st_t *)bfd_zalloc (abfd, tcontext_size);
121 bfd_error = no_memory;
125 /* Save thread contexts */
127 bfd_seek (abfd, pagesize, SEEK_SET);
129 val = bfd_read ((void *)threadp, pss.threadcnt, sizeof (core_st_t), abfd);
131 if (val != tcontext_size)
133 /* Probably too small to be a core file */
134 bfd_error = wrong_format;
138 core_signal (abfd) = threadp->currsig;
140 newsect = make_bfd_asection (abfd, ".stack",
141 SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS,
144 pagesize + tcontext_size);
147 bfd_error = no_memory;
151 newsect = make_bfd_asection (abfd, ".data",
152 SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS,
153 pss.data_len + pss.bss_len,
155 pagesize + tcontext_size + pss.ssize);
158 bfd_error = no_memory;
162 for (secnum = 0; secnum < pss.threadcnt; secnum++)
166 sprintf (secname, ".reg%d", threadp[secnum].tid);
167 newsect = make_bfd_asection (abfd, secname,
168 SEC_ALLOC + SEC_HAS_CONTENTS,
171 pagesize + secnum * sizeof (core_st_t));
174 bfd_error = no_memory;
183 lynx_core_file_failing_command (abfd)
186 return core_command (abfd);
191 lynx_core_file_failing_signal (abfd)
194 return core_signal (abfd);
199 lynx_core_file_matches_executable_p (core_bfd, exec_bfd)
200 bfd *core_bfd, *exec_bfd;
202 return true; /* FIXME, We have no way of telling at this point */
205 #endif /* HOST_LYNX */