1 /* $NetBSD: exec_coff.h,v 1.7 2005/12/11 12:25:20 christos Exp $ */ 2 3 /*- 4 * Copyright (C) 2000 SAITOH Masanobu. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef _SYS_EXEC_COFF_H_ 30 #define _SYS_EXEC_COFF_H_ 31 32 #include <machine/coff_machdep.h> 33 34 /* 35 * COFF file header 36 */ 37 38 struct coff_filehdr { 39 u_short f_magic; /* magic number */ 40 u_short f_nscns; /* # of sections */ 41 long f_timdat; /* timestamp */ 42 long f_symptr; /* file offset of symbol table */ 43 long f_nsyms; /* # of symbol table entries */ 44 u_short f_opthdr; /* size of optional header */ 45 u_short f_flags; /* flags */ 46 }; 47 48 /* f_flags */ 49 #define COFF_F_RELFLG 0x1 50 #define COFF_F_EXEC 0x2 51 #define COFF_F_LNNO 0x4 52 #define COFF_F_LSYMS 0x8 53 #define COFF_F_SWABD 0x40 54 #define COFF_F_AR16WR 0x80 55 #define COFF_F_AR32WR 0x100 56 #define COFF_F_AR32W 0x200 57 58 /* 59 * COFF system header 60 */ 61 62 struct coff_aouthdr { 63 short a_magic; 64 short a_vstamp; 65 long a_tsize; 66 long a_dsize; 67 long a_bsize; 68 long a_entry; 69 long a_tstart; 70 long a_dstart; 71 }; 72 73 /* 74 * COFF section header 75 */ 76 77 struct coff_scnhdr { 78 char s_name[8]; 79 long s_paddr; 80 long s_vaddr; 81 long s_size; 82 long s_scnptr; 83 long s_relptr; 84 long s_lnnoptr; 85 u_short s_nreloc; 86 u_short s_nlnno; 87 long s_flags; 88 }; 89 90 /* s_flags */ 91 #define COFF_STYP_REG 0x00 92 #define COFF_STYP_DSECT 0x01 93 #define COFF_STYP_NOLOAD 0x02 94 #define COFF_STYP_GROUP 0x04 95 #define COFF_STYP_PAD 0x08 96 #define COFF_STYP_COPY 0x10 97 #define COFF_STYP_TEXT 0x20 98 #define COFF_STYP_DATA 0x40 99 #define COFF_STYP_BSS 0x80 100 #define COFF_STYP_INFO 0x200 101 #define COFF_STYP_OVER 0x400 102 #define COFF_STYP_SHLIB 0x800 103 104 /* 105 * COFF shared library header 106 */ 107 108 struct coff_slhdr { 109 long entry_len; /* in words */ 110 long path_index; /* in words */ 111 char sl_name[1]; 112 }; 113 114 struct coff_exechdr { 115 struct coff_filehdr f; 116 struct coff_aouthdr a; 117 }; 118 119 #define COFF_ROUND(val, by) (((val) + by - 1) & ~(by - 1)) 120 121 #define COFF_ALIGN(a) ((a) & ~(COFF_LDPGSZ - 1)) 122 123 #define COFF_HDR_SIZE \ 124 (sizeof(struct coff_filehdr) + sizeof(struct coff_aouthdr)) 125 126 #define COFF_BLOCK_ALIGN(ap, value) \ 127 ((ap)->a_magic == COFF_ZMAGIC ? COFF_ROUND(value, COFF_LDPGSZ) : \ 128 value) 129 130 #define COFF_TXTOFF(fp, ap) \ 131 ((ap)->a_magic == COFF_ZMAGIC ? 0 : \ 132 COFF_ROUND(COFF_HDR_SIZE + (fp)->f_nscns * \ 133 sizeof(struct coff_scnhdr), \ 134 COFF_SEGMENT_ALIGNMENT(fp, ap))) 135 136 #define COFF_DATOFF(fp, ap) \ 137 (COFF_BLOCK_ALIGN(ap, COFF_TXTOFF(fp, ap) + (ap)->a_tsize)) 138 139 #define COFF_SEGMENT_ALIGN(fp, ap, value) \ 140 (COFF_ROUND(value, ((ap)->a_magic == COFF_ZMAGIC ? COFF_LDPGSZ : \ 141 COFF_SEGMENT_ALIGNMENT(fp, ap)))) 142 143 #ifdef _KERNEL 144 int exec_coff_makecmds(struct lwp *, struct exec_package *); 145 146 int exec_coff_prep_omagic(struct lwp *, struct exec_package *, 147 struct coff_filehdr *, 148 struct coff_aouthdr *); 149 int exec_coff_prep_nmagic(struct lwp *, struct exec_package *, 150 struct coff_filehdr *, 151 struct coff_aouthdr *); 152 int exec_coff_prep_zmagic(struct lwp *, struct exec_package *, 153 struct coff_filehdr *, 154 struct coff_aouthdr *); 155 #endif /* _KERNEL */ 156 #endif /* !_SYS_EXEC_COFF_H_ */ 157