lib/csu/common_elf/common.c

   1 /* $NetBSD: common.c,v 1.16 2004/08/26 21:01:12 thorpej Exp $ */
   2
   3 /*
   4  * Copyright (c) 1995 Christopher G. Demetriou
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *          This product includes software developed for the
  18  *          NetBSD Project.  See http://www.NetBSD.org/ for
  19  *          information about NetBSD.
  20  * 4. The name of the author may not be used to endorse or promote products
  21  *    derived from this software without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  24  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  25  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  26  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  27  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  28  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  29  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  30  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  31  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  32  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  33  *
  34  * <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
  35  */
  36
  37 /*
  38  * NOT A STANDALONE FILE!
  39  */
  40
  41 static char *
  42 _strrchr(char *p, int ch)
  43 {
  44         char *save;
  45
  46         for (save = NULL;; ++p) {
  47                 if (*p == ch)
  48                         save = (char *)p;
  49                 if (!*p)
  50                         return(save);
  51         }
  52         /* NOTREACHED */
  53 }
  54
  55 #ifdef MCRT0
  56 __asm ("  .text");
  57 #ifdef EPROL_EXPORT
  58 EPROL_EXPORT;
  59 #endif
  60 __asm ("_eprol:");
  61 #endif
  62
  63 #ifdef DYNAMIC
  64
  65 void
  66 _rtld_setup(void (*cleanup)(void), const Obj_Entry *obj)
  67 {
  68
  69         if ((obj == NULL) || (obj->magic != RTLD_MAGIC))
  70                 _FATAL("Corrupt Obj_Entry pointer in GOT\n");
  71         if (obj->version != RTLD_VERSION)
  72                 _FATAL("Dynamic linker version mismatch\n");
  73
  74         atexit(cleanup);
  75 }
  76
  77 #endif /* DYNAMIC */