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      1 /*	$NetBSD: coff_machdep.h,v 1.6 2002/04/28 17:10:33 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 
     94