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428
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1 /* Unexec function for Solaris 2.x
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2 Copyright (C) 1994 Sun Microsystems, Inc.
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3
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4 This file is part of XEmacs.
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5
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6 XEmacs is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published by the
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8 Free Software Foundation; either version 2, or (at your option) any
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9 later version.
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10
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11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs; see the file COPYING. If not, write to
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18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 Boston, MA 02111-1307, USA. */
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20
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21 /* Synched up with: Not in FSF. */
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22
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23 /* #pragma ident "@(#) $Id: unexsol2.c,v 1.3 1997/10/13 03:35:33 steve Exp $" */
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24
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25 #include <stdlib.h>
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26 #include <stdio.h>
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27 #include <dlfcn.h>
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28
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29 #define DYNODUMP_SO "../dynodump/dynodump.so"
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30 #define DYNODUMP_SYM "dynodump"
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31
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32 int unexec (char *new_name, char *old_name, unsigned int data_start,
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33 unsigned int bss_start, unsigned int entry_address);
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34 int
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35 unexec(char *new_name, char *old_name, unsigned int data_start,
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36 unsigned int bss_start, unsigned int entry_address)
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37 {
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38 void *handle;
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39 void (*func)(const char *file);
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40
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41 if ((handle = dlopen (DYNODUMP_SO, RTLD_LAZY)) == NULL)
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42 {
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43 fprintf (stderr, "unexec(): dlopen(%s): %s\n",
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44 (char *) DYNODUMP_SO, dlerror());
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45 exit (1);
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46 }
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47
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48 if ((func = (void (*)(const char *)) dlsym (handle, DYNODUMP_SYM)) == NULL)
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49 {
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50 fprintf (stderr, "unexec(): dlsym(%s): %s \n",
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51 (char *) DYNODUMP_SYM, dlerror());
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52 exit (1);
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53 }
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54
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55 (*func)(new_name);
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56
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57 dlclose (handle);
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58
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59 return 0;
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60 }
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