tools/mips-elf2ecoff/sys/exec_ecoff.h

   1 /*      $NetBSD: exec_ecoff.h,v 1.12 2000/11/21 00:37:56 jdolecek 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         ECOFF_USHORT f_magic;   /* magic number */
  40         ECOFF_USHORT f_nscns;   /* # of sections */
  41         ECOFF_UINT   f_timdat;  /* time and date stamp */
  42         ECOFF_ULONG  f_symptr;  /* file offset of symbol table */
  43         ECOFF_UINT   f_nsyms;   /* # of symbol table entries */
  44         ECOFF_USHORT f_opthdr;  /* sizeof the optional header */
  45         ECOFF_USHORT f_flags;   /* flags??? */
  46 };
  47
  48 struct ecoff_aouthdr {
  49         ECOFF_USHORT magic;
  50         ECOFF_USHORT vstamp;
  51         ECOFF_PAD
  52         ECOFF_ULONG  tsize;
  53         ECOFF_ULONG  dsize;
  54         ECOFF_ULONG  bsize;
  55         ECOFF_ULONG  entry;
  56         ECOFF_ULONG  text_start;
  57         ECOFF_ULONG  data_start;
  58         ECOFF_ULONG  bss_start;
  59         ECOFF_MACHDEP;
  60 };
  61
  62 struct ecoff_scnhdr {           /* needed for size info */
  63         char    s_name[8];      /* name */
  64         ECOFF_ULONG  s_paddr;   /* physical addr? for ROMing?*/
  65         ECOFF_ULONG  s_vaddr;   /* virtual addr? */
  66         ECOFF_ULONG  s_size;    /* size */
  67         ECOFF_ULONG  s_scnptr;  /* file offset of raw data */
  68         ECOFF_ULONG  s_relptr;  /* file offset of reloc data */
  69         ECOFF_ULONG  s_lnnoptr; /* file offset of line data */
  70         ECOFF_USHORT s_nreloc;  /* # of relocation entries */
  71         ECOFF_USHORT s_nlnno;   /* # of line entries */
  72         ECOFF_UINT   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     exec_ecoff_setup_stack __P((struct proc *, struct exec_package *));
 108 int     cpu_exec_ecoff_probe __P((struct proc *, struct exec_package *));
 109 void    cpu_exec_ecoff_setregs __P((struct proc *, struct exec_package *,
 110             u_long));
 111
 112 int     exec_ecoff_prep_omagic __P((struct proc *, struct exec_package *,
 113             struct ecoff_exechdr *, struct vnode *));
 114 int     exec_ecoff_prep_nmagic __P((struct proc *, struct exec_package *,
 115             struct ecoff_exechdr *, struct vnode *));
 116 int     exec_ecoff_prep_zmagic __P((struct proc *, struct exec_package *,
 117             struct ecoff_exechdr *, struct vnode *));
 118
 119 #endif /* _KERNEL */
 120 #endif /* !_SYS_EXEC_ECOFF_H_ */