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