loadfile_ecoff.c revision 1.1
1 /* $NetBSD: loadfile_ecoff.c,v 1.1 2001/10/30 23:51:03 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1997 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center and by Christos Zoulas. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /* 41 * Copyright (c) 1992, 1993 42 * The Regents of the University of California. All rights reserved. 43 * 44 * This code is derived from software contributed to Berkeley by 45 * Ralph Campbell. 46 * 47 * Redistribution and use in source and binary forms, with or without 48 * modification, are permitted provided that the following conditions 49 * are met: 50 * 1. Redistributions of source code must retain the above copyright 51 * notice, this list of conditions and the following disclaimer. 52 * 2. Redistributions in binary form must reproduce the above copyright 53 * notice, this list of conditions and the following disclaimer in the 54 * documentation and/or other materials provided with the distribution. 55 * 3. All advertising materials mentioning features or use of this software 56 * must display the following acknowledgement: 57 * This product includes software developed by the University of 58 * California, Berkeley and its contributors. 59 * 4. Neither the name of the University nor the names of its contributors 60 * may be used to endorse or promote products derived from this software 61 * without specific prior written permission. 62 * 63 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 64 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 65 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 66 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 67 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 68 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 69 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 70 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 71 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 72 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 73 * SUCH DAMAGE. 74 * 75 * @(#)boot.c 8.1 (Berkeley) 6/10/93 76 */ 77 78 static int 79 coff_exec(fd, coff, marks, flags) 80 int fd; 81 struct ecoff_exechdr *coff; 82 u_long *marks; 83 int flags; 84 { 85 paddr_t offset = marks[MARK_START]; 86 paddr_t minp = ~0, maxp = 0, pos; 87 88 /* Read in text. */ 89 if (lseek(fd, ECOFF_TXTOFF(coff), SEEK_SET) == -1) { 90 WARN(("lseek text")); 91 return 1; 92 } 93 94 if (coff->a.tsize != 0) { 95 if (flags & LOAD_TEXT) { 96 PROGRESS(("%lu", coff->a.tsize)); 97 if (READ(fd, coff->a.text_start, coff->a.tsize) != 98 coff->a.tsize) { 99 return 1; 100 } 101 } 102 else { 103 if (lseek(fd, coff->a.tsize, SEEK_CUR) == -1) { 104 WARN(("read text")); 105 return 1; 106 } 107 } 108 if (flags & (COUNT_TEXT|LOAD_TEXT)) { 109 pos = coff->a.text_start; 110 if (minp > pos) 111 minp = pos; 112 pos += coff->a.tsize; 113 if (maxp < pos) 114 maxp = pos; 115 } 116 } 117 118 /* Read in data. */ 119 if (coff->a.dsize != 0) { 120 if (flags & LOAD_DATA) { 121 PROGRESS(("+%lu", coff->a.dsize)); 122 if (READ(fd, coff->a.data_start, coff->a.dsize) != 123 coff->a.dsize) { 124 WARN(("read data")); 125 return 1; 126 } 127 } 128 if (flags & (COUNT_DATA|LOAD_DATA)) { 129 pos = coff->a.data_start; 130 if (minp > pos) 131 minp = pos; 132 pos += coff->a.dsize; 133 if (maxp < pos) 134 maxp = pos; 135 } 136 } 137 138 /* Zero out bss. */ 139 if (coff->a.bsize != 0) { 140 if (flags & LOAD_BSS) { 141 PROGRESS(("+%lu", coff->a.bsize)); 142 BZERO(coff->a.bss_start, coff->a.bsize); 143 } 144 if (flags & (COUNT_BSS|LOAD_BSS)) { 145 pos = coff->a.bss_start; 146 if (minp > pos) 147 minp = pos; 148 pos = coff->a.bsize; 149 if (maxp < pos) 150 maxp = pos; 151 } 152 } 153 154 marks[MARK_START] = LOADADDR(minp); 155 marks[MARK_ENTRY] = LOADADDR(coff->a.entry); 156 marks[MARK_NSYM] = 1; /* XXX: Kernel needs >= 0 */ 157 marks[MARK_SYM] = LOADADDR(maxp); 158 marks[MARK_END] = LOADADDR(maxp); 159 return 0; 160 } 161
Indexes created Tue Sep 30 11:09:46 GMT 2025