1 /* $NetBSD: ecoff_machdep.h,v 1.18 2002/03/05 14:12:29 simonb Exp $ */ 2 3 /* 4 * Copyright (c) 1997 Jonathan Stone 5 * All rights reserved. 6 * 7 * Copyright (c) 1994 Adam Glass 8 * All rights reserved. 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. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by Adam Glass. 21 * 4. The name of the Author may not be used to endorse or promote products 22 * derived from this software without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY Adam Glass ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL Adam Glass BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37 #define ECOFF_LDPGSZ 4096 38 39 #define ECOFF_PAD 40 41 #define ECOFF_MACHDEP \ 42 u_long gprmask; \ 43 u_long cprmask[4]; \ 44 u_long gp_value 45 #ifdef _KERNEL 46 #include <mips/cpu.h> /* mips CPU architecture levels */ 47 #define _MIPS3_OK() CPUISMIPS3 48 #else 49 #define _MIPS3_OK() 1 50 #endif 51 52 53 #define ECOFF_MAGIC_MIPSEB 0x0160 /* mips1, big-endian */ 54 #define ECOFF_MAGIC_MIPSEL 0x0162 /* mips1, little-endian */ 55 #define ECOFF_MAGIC_MIPSEL3 0x0142 /* mips3, little-endian */ 56 57 #if BYTE_ORDER == LITTLE_ENDIAN 58 #define ECOFF_BADMAG(ep) \ 59 (! \ 60 ((ep)->f.f_magic == ECOFF_MAGIC_MIPSEL || \ 61 (_MIPS3_OK() && (ep)->f.f_magic == ECOFF_MAGIC_MIPSEL3)) \ 62 ) 63 #endif 64 #if BYTE_ORDER == BIG_ENDIAN 65 #define ECOFF_BADMAG(ep) ((ep)->f.f_magic != ECOFF_MAGIC_MIPSEB) 66 #endif 67 68 69 #define ECOFF_SEGMENT_ALIGNMENT(ep) ((ep)->a.vstamp < 23 ? 8 : 16) 70 71 #ifdef _KERNEL 72 struct proc; 73 struct exec_package; 74 void cpu_exec_ecoff_setregs(struct proc *, struct exec_package *, u_long); 75 #endif /* _KERNEL */ 76 77 78 /* 79 * ECOFF symbol definitions for 32-bit mips. 80 * XXX 64-bit (mips3?) may be different. 81 */ 82 struct ecoff_symhdr { 83 int16_t magic; 84 int16_t vstamp; 85 int32_t ilineMax; 86 int32_t cbLine; 87 int32_t cbLineOffset; 88 int32_t idnMax; 89 int32_t cbDnOffset; 90 int32_t ipdMax; 91 int32_t cbPdOffset; 92 int32_t isymMax; 93 int32_t cbSymOffset; 94 int32_t ioptMax; 95 int32_t cbOptOffset; 96 int32_t iauxMax; 97 int32_t cbAuxOffset; 98 int32_t issMax; 99 int32_t cbSsOffset; 100 int32_t issExtMax; 101 int32_t cbSsExtOffset; 102 int32_t ifdMax; 103 int32_t cbFdOffset; 104 int32_t crfd; 105 int32_t cbRfdOffset; 106 int32_t iextMax; 107 int32_t cbExtOffset; 108 }; 109 110 /* Macro for field name used by cgd's Alpha-derived code */ 111 #define esymMax iextMax 112 113 114 struct ecoff_extsym { 115 u_int16_t es_flags; 116 u_int16_t es_ifd; 117 int32_t es_strindex; 118 int32_t es_value; 119 unsigned es_type:6; 120 unsigned es_class:5; 121 unsigned :1; 122 unsigned es_symauxindex:20; 123 }; 124