The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/compat/svr4/svr4_exec_elf32.c

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    1 /*      $NetBSD: svr4_exec_elf32.c,v 1.14 2008/04/28 20:23:45 martin Exp $       */
    2 
    3 /*-
    4  * Copyright (c) 1994 The NetBSD Foundation, Inc.
    5  * All rights reserved.
    6  *
    7  * This code is derived from software contributed to The NetBSD Foundation
    8  * by Christos Zoulas.
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer.
   15  * 2. Redistributions in binary form must reproduce the above copyright
   16  *    notice, this list of conditions and the following disclaimer in the
   17  *    documentation and/or other materials provided with the distribution.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   29  * POSSIBILITY OF SUCH DAMAGE.
   30  */
   31 
   32 #include <sys/cdefs.h>
   33 __KERNEL_RCSID(0, "$NetBSD: svr4_exec_elf32.c,v 1.14 2008/04/28 20:23:45 martin Exp $");
   34 
   35 #define ELFSIZE         32                              /* XXX should die */
   36 
   37 #include <sys/param.h>
   38 #include <sys/systm.h>
   39 #include <sys/kernel.h>
   40 #include <sys/proc.h>
   41 #include <sys/malloc.h>
   42 #include <sys/namei.h>
   43 #include <sys/vnode.h>
   44 #include <sys/exec_elf.h>
   45 #include <sys/exec.h>
   46 
   47 #include <sys/mman.h>
   48 
   49 #include <sys/cpu.h>
   50 #include <machine/reg.h>
   51 
   52 #include <compat/svr4/svr4_types.h>
   53 #include <compat/svr4/svr4_util.h>
   54 #include <compat/svr4/svr4_exec.h>
   55 #include <compat/svr4/svr4_errno.h>
   56 
   57 int
   58 svr4_elf32_probe(
   59     struct lwp *l,
   60     struct exec_package *epp,
   61     void *eh,
   62     char *itp,
   63     vaddr_t *pos
   64 )
   65 {
   66         struct proc *p = l->l_proc;
   67         int error;
   68 
   69         if (itp) {
   70                 if ((error = emul_find_interp(LIST_FIRST(&p->p_lwps), epp, itp)))
   71                         return error;
   72         }
   73 #ifdef SVR4_INTERP_ADDR
   74         *pos = SVR4_INTERP_ADDR;
   75 #endif
   76         return 0;
   77 }

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