1 /* $OpenBSD: freebsd_exec.h,v 1.7 2004/04/15 00:22:42 tedu Exp $ */
2
3 /*-
4 * Copyright (c) 1992, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * from: @(#)exec.h 8.1 (Berkeley) 6/11/93
32 * from: imgact_aout.h,v 1.2 1994/12/30 08:06:19 bde Exp
33 */
34
35 #ifndef _FREEBSD_EXEC_H
36 #define _FREEBSD_EXEC_H
37
38 #define FREEBSD_N_GETMAGIC(ex) \
39 ( (ex).a_midmag & 0xffff )
40 #define FREEBSD_N_GETMID(ex) \
41 ( ((ex).a_midmag >> 16) & 0x03ff )
42 #define FREEBSD_N_GETFLAG(ex) \
43 ( ((ex).a_midmag >> 26) & 0x3f )
44 #define FREEBSD_N_SETMAGIC(ex,mag,mid,flag) \
45 ( (ex).a_midmag = (((flag) & 0x3f) <<26) | (((mid) & 0x03ff) << 16) | \
46 ((mag) & 0xffff) )
47
48 #define FREEBSD_N_ALIGN(ex,x) \
49 (FREEBSD_N_GETMAGIC(ex) == ZMAGIC || \
50 FREEBSD_N_GETMAGIC(ex) == QMAGIC ? \
51 ((x) + FREEBSD___LDPGSZ - 1) & \
52 ~(unsigned long)(FREEBSD___LDPGSZ - 1) : (x))
53
54 /* Valid magic number check. */
55 #define FREEBSD_N_BADMAG(ex) \
56 (FREEBSD_N_GETMAGIC(ex) != OMAGIC && \
57 FREEBSD_N_GETMAGIC(ex) != NMAGIC && \
58 FREEBSD_N_GETMAGIC(ex) != ZMAGIC && \
59 FREEBSD_N_GETMAGIC(ex) != QMAGIC)
60
61 /* Address of the bottom of the text segment. */
62 #define FREEBSD_N_TXTADDR(ex) \
63 ((FREEBSD_N_GETMAGIC(ex) == OMAGIC || \
64 FREEBSD_N_GETMAGIC(ex) == NMAGIC || \
65 FREEBSD_N_GETMAGIC(ex) == ZMAGIC) ? 0 : __LDPGSZ)
66
67 /* Address of the bottom of the data segment. */
68 #define FREEBSD_N_DATADDR(ex) \
69 FREEBSD_N_ALIGN(ex, FREEBSD_N_TXTADDR(ex) + (ex).a_text)
70
71 /* Text segment offset. */
72 #define FREEBSD_N_TXTOFF(ex) \
73 (FREEBSD_N_GETMAGIC(ex) == ZMAGIC ? __LDPGSZ : \
74 FREEBSD_N_GETMAGIC(ex) == QMAGIC ? 0 : sizeof(struct exec))
75
76 /* Data segment offset. */
77 #define FREEBSD_N_DATOFF(ex) \
78 FREEBSD_N_ALIGN(ex, FREEBSD_N_TXTOFF(ex) + (ex).a_text)
79
80 /* Relocation table offset. */
81 #define FREEBSD_N_RELOFF(ex) \
82 FREEBSD_N_ALIGN(ex, FREEBSD_N_DATOFF(ex) + (ex).a_data)
83
84 /* Symbol table offset. */
85 #define FREEBSD_N_SYMOFF(ex) \
86 (FREEBSD_N_RELOFF(ex) + (ex).a_trsize + (ex).a_drsize)
87
88 /* String table offset. */
89 #define FREEBSD_N_STROFF(ex) (FREEBSD_N_SYMOFF(ex) + (ex).a_syms)
90
91 #define FREEBSD_ELF_AUX_ARGSIZ (sizeof(AuxInfo) * 15 / sizeof(char *))
92
93 #define FREEBSD_AOUT_HDR_SIZE sizeof(struct exec)
94
95 int exec_freebsd_aout_makecmds(struct proc *, struct exec_package *);
96 int exec_freebsd_elf32_makecmds(struct proc *, struct exec_package *);
97 int freebsd_elf_probe(struct proc *, struct exec_package *, char *,
98 u_long *, u_int8_t *);
99
100 extern char freebsd_sigcode[], freebsd_esigcode[];
101
102 #endif /* !_FREEBSD_EXEC_H */