Change sendfile() to use the new m_ext callback scheme for cleaning up after
[dragonfly.git] / sys / sys / imgact_aout.h
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1/*-
2 * Copyright (c) 1992, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * from: @(#)exec.h 8.1 (Berkeley) 6/11/93
34 * $FreeBSD: src/sys/sys/imgact_aout.h,v 1.13 1999/12/29 04:24:41 peter Exp $
b153f746 35 * $DragonFly: src/sys/sys/imgact_aout.h,v 1.3 2003/08/20 07:31:21 rob Exp $
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36 */
37
38#ifndef _IMGACT_AOUT_H_
39#define _IMGACT_AOUT_H_
40
41#define N_GETMAGIC(ex) \
42 ( (ex).a_midmag & 0xffff )
43#define N_GETMID(ex) \
44 ( (N_GETMAGIC_NET(ex) == ZMAGIC) ? N_GETMID_NET(ex) : \
45 ((ex).a_midmag >> 16) & 0x03ff )
46#define N_GETFLAG(ex) \
47 ( (N_GETMAGIC_NET(ex) == ZMAGIC) ? N_GETFLAG_NET(ex) : \
48 ((ex).a_midmag >> 26) & 0x3f )
49#define N_SETMAGIC(ex,mag,mid,flag) \
50 ( (ex).a_midmag = (((flag) & 0x3f) <<26) | (((mid) & 0x03ff) << 16) | \
51 ((mag) & 0xffff) )
52
53#define N_GETMAGIC_NET(ex) \
54 (ntohl((ex).a_midmag) & 0xffff)
55#define N_GETMID_NET(ex) \
56 ((ntohl((ex).a_midmag) >> 16) & 0x03ff)
57#define N_GETFLAG_NET(ex) \
58 ((ntohl((ex).a_midmag) >> 26) & 0x3f)
59#define N_SETMAGIC_NET(ex,mag,mid,flag) \
60 ( (ex).a_midmag = htonl( (((flag)&0x3f)<<26) | (((mid)&0x03ff)<<16) | \
61 (((mag)&0xffff)) ) )
62
63#define N_ALIGN(ex,x) \
64 (N_GETMAGIC(ex) == ZMAGIC || N_GETMAGIC(ex) == QMAGIC || \
65 N_GETMAGIC_NET(ex) == ZMAGIC || N_GETMAGIC_NET(ex) == QMAGIC ? \
66 ((x) + __LDPGSZ - 1) & ~(unsigned long)(__LDPGSZ - 1) : (x))
67
68/* Valid magic number check. */
69#define N_BADMAG(ex) \
70 (N_GETMAGIC(ex) != OMAGIC && N_GETMAGIC(ex) != NMAGIC && \
71 N_GETMAGIC(ex) != ZMAGIC && N_GETMAGIC(ex) != QMAGIC && \
72 N_GETMAGIC_NET(ex) != OMAGIC && N_GETMAGIC_NET(ex) != NMAGIC && \
73 N_GETMAGIC_NET(ex) != ZMAGIC && N_GETMAGIC_NET(ex) != QMAGIC)
74
75
76/* Address of the bottom of the text segment. */
77/*
78 * This can not be done right. Abuse a_entry in some cases to handle kernels.
79 */
80#define N_TXTADDR(ex) \
81 ((N_GETMAGIC(ex) == OMAGIC || N_GETMAGIC(ex) == NMAGIC || \
82 N_GETMAGIC(ex) == ZMAGIC) ? \
83 ((ex).a_entry < (ex).a_text ? 0 : (ex).a_entry & ~__LDPGSZ) : __LDPGSZ)
84
85/* Address of the bottom of the data segment. */
86#define N_DATADDR(ex) \
87 N_ALIGN(ex, N_TXTADDR(ex) + (ex).a_text)
88
89/* Text segment offset. */
90#define N_TXTOFF(ex) \
91 (N_GETMAGIC(ex) == ZMAGIC ? __LDPGSZ : (N_GETMAGIC(ex) == QMAGIC || \
92 N_GETMAGIC_NET(ex) == ZMAGIC) ? 0 : sizeof(struct exec))
93
94/* Data segment offset. */
95#define N_DATOFF(ex) \
96 N_ALIGN(ex, N_TXTOFF(ex) + (ex).a_text)
97
98/* Relocation table offset. */
99#define N_RELOFF(ex) \
100 N_ALIGN(ex, N_DATOFF(ex) + (ex).a_data)
101
102/* Symbol table offset. */
103#define N_SYMOFF(ex) \
104 (N_RELOFF(ex) + (ex).a_trsize + (ex).a_drsize)
105
106/* String table offset. */
107#define N_STROFF(ex) (N_SYMOFF(ex) + (ex).a_syms)
108
109/*
110 * Header prepended to each a.out file.
111 * only manipulate the a_midmag field via the
112 * N_SETMAGIC/N_GET{MAGIC,MID,FLAG} macros in a.out.h
113 */
114
115struct exec {
116 unsigned long a_midmag; /* flags<<26 | mid<<16 | magic */
117 unsigned long a_text; /* text segment size */
118 unsigned long a_data; /* initialized data size */
119 unsigned long a_bss; /* uninitialized data size */
120 unsigned long a_syms; /* symbol table size */
121 unsigned long a_entry; /* entry point */
122 unsigned long a_trsize; /* text relocation size */
123 unsigned long a_drsize; /* data relocation size */
124};
125#define a_magic a_midmag /* XXX Hack to work with current kern_execve.c */
126
127/* a_magic */
128#define OMAGIC 0407 /* old impure format */
129#define NMAGIC 0410 /* read-only text */
130#define ZMAGIC 0413 /* demand load format */
131#define QMAGIC 0314 /* "compact" demand load format */
132
133/* a_mid */
134#define MID_ZERO 0 /* unknown - implementation dependent */
135#define MID_SUN010 1 /* sun 68010/68020 binary */
136#define MID_SUN020 2 /* sun 68020-only binary */
137#define MID_I386 134 /* i386 BSD binary */
138#define MID_SPARC 138 /* sparc */
139#define MID_HP200 200 /* hp200 (68010) BSD binary */
140#define MID_HP300 300 /* hp300 (68020+68881) BSD binary */
141#define MID_HPUX 0x20C /* hp200/300 HP-UX binary */
142#define MID_HPUX800 0x20B /* hp800 HP-UX binary */
143
144/*
145 * a_flags
146 */
147#define EX_PIC 0x10 /* contains position independent code */
148#define EX_DYNAMIC 0x20 /* contains run-time link-edit info */
149#define EX_DPMASK 0x30 /* mask for the above */
150
151#ifdef _KERNEL
152struct proc;
153
b153f746 154int aout_coredump (struct proc *p, struct vnode *vp, off_t limit);
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155#endif
156
157#endif /* !_IMGACT_AOUT_H_ */