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/sys/exec_ecoff.h

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    1 /*      $NetBSD: exec_ecoff.h,v 1.16 2003/08/08 18:54:16 christos Exp $ */
    2 
    3 /*
    4  * Copyright (c) 1994 Adam Glass
    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 by Adam Glass.
   18  * 4. The name of the author may not be used to endorse or promote products
   19  *    derived from this software without specific prior written permission
   20  *
   21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   31  */
   32 
   33 #ifndef _SYS_EXEC_ECOFF_H_
   34 #define _SYS_EXEC_ECOFF_H_
   35 
   36 #include <machine/ecoff_machdep.h>
   37 
   38 struct ecoff_filehdr {
   39         u_short f_magic;        /* magic number */
   40         u_short f_nscns;        /* # of sections */
   41         u_int   f_timdat;       /* time and date stamp */
   42         u_long  f_symptr;       /* file offset of symbol table */
   43         u_int   f_nsyms;        /* # of symbol table entries */
   44         u_short f_opthdr;       /* sizeof the optional header */
   45         u_short f_flags;        /* flags??? */
   46 };
   47 
   48 struct ecoff_aouthdr {
   49         u_short magic;
   50         u_short vstamp;
   51         ECOFF_PAD
   52         u_long  tsize;
   53         u_long  dsize;
   54         u_long  bsize;
   55         u_long  entry;
   56         u_long  text_start;
   57         u_long  data_start;
   58         u_long  bss_start;
   59         ECOFF_MACHDEP;
   60 };
   61 
   62 struct ecoff_scnhdr {           /* needed for size info */
   63         char    s_name[8];      /* name */
   64         u_long  s_paddr;        /* physical addr? for ROMing?*/
   65         u_long  s_vaddr;        /* virtual addr? */
   66         u_long  s_size;         /* size */
   67         u_long  s_scnptr;       /* file offset of raw data */
   68         u_long  s_relptr;       /* file offset of reloc data */
   69         u_long  s_lnnoptr;      /* file offset of line data */
   70         u_short s_nreloc;       /* # of relocation entries */
   71         u_short s_nlnno;        /* # of line entries */
   72         u_int   s_flags;        /* flags */
   73 };
   74 
   75 struct ecoff_exechdr {
   76         struct ecoff_filehdr f;
   77         struct ecoff_aouthdr a;
   78 };
   79 
   80 #define ECOFF_HDR_SIZE (sizeof(struct ecoff_exechdr))
   81 
   82 #define ECOFF_OMAGIC 0407
   83 #define ECOFF_NMAGIC 0410
   84 #define ECOFF_ZMAGIC 0413
   85 
   86 #define ECOFF_ROUND(value, by) \
   87         (((value) + (by) - 1) & ~((by) - 1))
   88 
   89 #define ECOFF_BLOCK_ALIGN(ep, value) \
   90         ((ep)->a.magic == ECOFF_ZMAGIC ? ECOFF_ROUND((value), ECOFF_LDPGSZ) : \
   91          (value))
   92 
   93 #define ECOFF_TXTOFF(ep) \
   94         ((ep)->a.magic == ECOFF_ZMAGIC ? 0 : \
   95          ECOFF_ROUND(ECOFF_HDR_SIZE + (ep)->f.f_nscns * \
   96                      sizeof(struct ecoff_scnhdr), ECOFF_SEGMENT_ALIGNMENT(ep)))
   97 
   98 #define ECOFF_DATOFF(ep) \
   99         (ECOFF_BLOCK_ALIGN((ep), ECOFF_TXTOFF(ep) + (ep)->a.tsize))
  100 
  101 #define ECOFF_SEGMENT_ALIGN(ep, value) \
  102         (ECOFF_ROUND((value), ((ep)->a.magic == ECOFF_ZMAGIC ? ECOFF_LDPGSZ : \
  103          ECOFF_SEGMENT_ALIGNMENT(ep))))
  104 
  105 #ifdef _KERNEL
  106 int     exec_ecoff_makecmds __P((struct proc *, struct exec_package *));
  107 int     cpu_exec_ecoff_probe __P((struct proc *, struct exec_package *));
  108 void    cpu_exec_ecoff_setregs __P((struct lwp *, struct exec_package *,
  109             u_long));
  110 
  111 int     exec_ecoff_prep_omagic __P((struct proc *, struct exec_package *,
  112             struct ecoff_exechdr *, struct vnode *));
  113 int     exec_ecoff_prep_nmagic __P((struct proc *, struct exec_package *,
  114             struct ecoff_exechdr *, struct vnode *));
  115 int     exec_ecoff_prep_zmagic __P((struct proc *, struct exec_package *,
  116             struct ecoff_exechdr *, struct vnode *));
  117 
  118 #endif /* _KERNEL */
  119 #endif /* !_SYS_EXEC_ECOFF_H_ */

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