sys/arch/sh3/include/coff_machdep.h

   1 /*      $NetBSD: coff_machdep.h,v 1.5 2002/03/17 17:55:24 uch Exp $     */
   2
   3 /*
   4  * Copyright (c) 1994, 1995 Scott Bartram
   5  * All rights reserved.
   6  *
   7  * adapted from sys/sys/exec_ecoff.h
   8  * based on Intel iBCS2
   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  * 3. 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 _SH3_COFF_MACHDEP_H_
  34 #define _SH3_COFF_MACHDEP_H_
  35
  36 /* f_magic flags */
  37 #define COFF_MAGIC_SH3_BIG      0x500
  38 #define COFF_MAGIC_SH3_LITTLE   0x550
  39
  40 /* magic */
  41 #define COFF_OMAGIC     0444    /* text not write-protected; data seg
  42                                    is contiguous with text */
  43 #define COFF_NMAGIC     0410    /* text is write-protected; data starts
  44                                    at next seg following text */
  45 #define COFF_ZMAGIC     0000    /* text and data segs are aligned for
  46                                    direct paging */
  47 #define COFF_SMAGIC     0443    /* shared lib */
  48
  49 #define COFF_LDPGSZ 4096
  50
  51 #define COFF_SEGMENT_ALIGNMENT(fp, ap)                                  \
  52     (((fp)->f_flags & COFF_F_EXEC) == 0 ? 4 : 16)
  53
  54 #ifndef _BYTE_ORDER
  55 #error Define _BYTE_ORDER!
  56 #endif
  57
  58 #if _BYTE_ORDER == BIG_ENDIAN
  59 #define COFF_BADMAG(ex) ((ex)->f_magic != COFF_MAGIC_SH3_BIG)
  60 #endif
  61 #if _BYTE_ORDER == LITTLE_ENDIAN
  62 #define COFF_BADMAG(ex) ((ex)->f_magic != COFF_MAGIC_SH3_LITTLE)
  63 #endif
  64
  65 #define IBCS2_HIGH_SYSCALL(n)           (((n) & 0x7f) == 0x28)
  66 #define IBCS2_CVT_HIGH_SYSCALL(n)       (((n) >> 8) + 128)
  67
  68 #ifdef DEBUG_COFF
  69 #define DPRINTF(a)      printf a;
  70 #else
  71 #define DPRINTF(a)
  72 #endif
  73
  74 #define COFF_ES_SYMNMLEN        8
  75 #define COFF_ES_SYMENTSZ        18
  76
  77 struct external_syment {
  78         union {
  79                 char e_name[COFF_ES_SYMNMLEN];
  80                 struct {
  81                         char e_zeroes[4];
  82                         char e_offset[4];
  83                 } e;
  84         } e;
  85         char e_value[4];
  86         char e_scnum[2];
  87         char e_type[2];
  88         char e_sclass[1];
  89         char e_numaux[1];
  90 };
  91
  92 #endif /* !_SH3_COFF_MACHDEP_H_ */
  93