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
--- 17 unchanged lines hidden (view full) ---
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 * @(#)exec.h 8.1 (Berkeley) 6/11/93
34 * $Id: exec.h,v 1.3 1994/08/02 07:38:45 davidg Exp $
35 */
36
37#ifndef _EXEC_H_
38#define _EXEC_H_
39
40#if defined(hp300) || defined(i386)
41#define __LDPGSZ 4096
42#endif
43#if defined(tahoe) || defined(vax)
44#define __LDPGSZ 1024
45#endif
46
47#define N_GETMAGIC(ex) \
48 ( (ex).a_midmag & 0xffff )
49#define N_GETMID(ex) \
50 ( (N_GETMAGIC_NET(ex) == ZMAGIC) ? N_GETMID_NET(ex) : \
51 ((ex).a_midmag >> 16) & 0x03ff )
52#define N_GETFLAG(ex) \
53 ( (N_GETMAGIC_NET(ex) == ZMAGIC) ? N_GETFLAG_NET(ex) : \
54 ((ex).a_midmag >> 26) & 0x3f )
55#define N_SETMAGIC(ex,mag,mid,flag) \
56 ( (ex).a_midmag = (((flag) & 0x3f) <<26) | (((mid) & 0x03ff) << 16) | \
57 ((mag) & 0xffff) )
58
59#define N_GETMAGIC_NET(ex) \
60 (ntohl((ex).a_midmag) & 0xffff)
61#define N_GETMID_NET(ex) \
62 ((ntohl((ex).a_midmag) >> 16) & 0x03ff)
63#define N_GETFLAG_NET(ex) \
64 ((ntohl((ex).a_midmag) >> 26) & 0x3f)
65#define N_SETMAGIC_NET(ex,mag,mid,flag) \
66 ( (ex).a_midmag = htonl( (((flag)&0x3f)<<26) | (((mid)&0x03ff)<<16) | \
67 (((mag)&0xffff)) ) )
68
69#define N_ALIGN(ex,x) \
70 (N_GETMAGIC(ex) == ZMAGIC || N_GETMAGIC(ex) == QMAGIC || \
71 N_GETMAGIC_NET(ex) == ZMAGIC || N_GETMAGIC_NET(ex) == QMAGIC ? \
72 ((x) + __LDPGSZ - 1) & ~(__LDPGSZ - 1) : (x))
73
74/* Valid magic number check. */
75#define N_BADMAG(ex) \
76 (N_GETMAGIC(ex) != OMAGIC && N_GETMAGIC(ex) != NMAGIC && \
77 N_GETMAGIC(ex) != ZMAGIC && N_GETMAGIC(ex) != QMAGIC && \
78 N_GETMAGIC_NET(ex) != OMAGIC && N_GETMAGIC_NET(ex) != NMAGIC && \
79 N_GETMAGIC_NET(ex) != ZMAGIC && N_GETMAGIC_NET(ex) != QMAGIC)
80
81
82/* Address of the bottom of the text segment. */
83#define N_TXTADDR(ex) \
84 ((N_GETMAGIC(ex) == OMAGIC || N_GETMAGIC(ex) == NMAGIC || \
85 N_GETMAGIC(ex) == ZMAGIC) ? 0 : __LDPGSZ)
86
87/* Address of the bottom of the data segment. */
88#define N_DATADDR(ex) \
89 N_ALIGN(ex, N_TXTADDR(ex) + (ex).a_text)
90
91/* Text segment offset. */
92#define N_TXTOFF(ex) \
93 (N_GETMAGIC(ex) == ZMAGIC ? __LDPGSZ : (N_GETMAGIC(ex) == QMAGIC || \
94 N_GETMAGIC_NET(ex) == ZMAGIC) ? 0 : sizeof(struct exec))
95
96/* Data segment offset. */
97#define N_DATOFF(ex) \
98 N_ALIGN(ex, N_TXTOFF(ex) + (ex).a_text)
99
100/* Relocation table offset. */
101#define N_RELOFF(ex) \
102 N_ALIGN(ex, N_DATOFF(ex) + (ex).a_data)
103
104/* Symbol table offset. */
105#define N_SYMOFF(ex) \
106 (N_RELOFF(ex) + (ex).a_trsize + (ex).a_drsize)
107
108/* String table offset. */
109#define N_STROFF(ex) (N_SYMOFF(ex) + (ex).a_syms)
110
111/*
112 * Header prepended to each a.out file.
113 * only manipulate the a_midmag field via the
114 * N_SETMAGIC/N_GET{MAGIC,MID,FLAG} macros in a.out.h
115 */
116
117struct exec {
118 unsigned long a_midmag; /* htonl(flags<<26 | mid<<16 | magic) */
119 unsigned long a_text; /* text segment size */
120 unsigned long a_data; /* initialized data size */
121 unsigned long a_bss; /* uninitialized data size */
122 unsigned long a_syms; /* symbol table size */
123 unsigned long a_entry; /* entry point */
124 unsigned long a_trsize; /* text relocation size */
125 unsigned long a_drsize; /* data relocation size */
126};
127#define a_magic a_midmag /* XXX Hack to work with current kern_execve.c */
128
129/* a_magic */
130#define OMAGIC 0407 /* old impure format */
131#define NMAGIC 0410 /* read-only text */
132#define ZMAGIC 0413 /* demand load format */
133#define QMAGIC 0314 /* "compact" demand load format */
134
135/* a_mid */
136#define MID_ZERO 0 /* unknown - implementation dependent */
137#define MID_SUN010 1 /* sun 68010/68020 binary */
138#define MID_SUN020 2 /* sun 68020-only binary */
139#define MID_I386 134 /* i386 BSD binary */
140#define MID_HP200 200 /* hp200 (68010) BSD binary */
141#define MID_HP300 300 /* hp300 (68020+68881) BSD binary */
142#define MID_HPUX 0x20C /* hp200/300 HP-UX binary */
143#define MID_HPUX800 0x20B /* hp800 HP-UX binary */
144
145/*
146 * a_flags
147 */
148#define EX_DYNAMIC 0x20 /* a.out contains run-time link-edit info */
149
150#endif /* !_EXEC_H_ */
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
--- 17 unchanged lines hidden (view full) ---
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 * @(#)exec.h 8.1 (Berkeley) 6/11/93
34 * $Id: exec.h,v 1.3 1994/08/02 07:38:45 davidg Exp $
35 */
36
37#ifndef _EXEC_H_
38#define _EXEC_H_
39
40#if defined(hp300) || defined(i386)
41#define __LDPGSZ 4096
42#endif
43#if defined(tahoe) || defined(vax)
44#define __LDPGSZ 1024
45#endif
46
47#define N_GETMAGIC(ex) \
48 ( (ex).a_midmag & 0xffff )
49#define N_GETMID(ex) \
50 ( (N_GETMAGIC_NET(ex) == ZMAGIC) ? N_GETMID_NET(ex) : \
51 ((ex).a_midmag >> 16) & 0x03ff )
52#define N_GETFLAG(ex) \
53 ( (N_GETMAGIC_NET(ex) == ZMAGIC) ? N_GETFLAG_NET(ex) : \
54 ((ex).a_midmag >> 26) & 0x3f )
55#define N_SETMAGIC(ex,mag,mid,flag) \
56 ( (ex).a_midmag = (((flag) & 0x3f) <<26) | (((mid) & 0x03ff) << 16) | \
57 ((mag) & 0xffff) )
58
59#define N_GETMAGIC_NET(ex) \
60 (ntohl((ex).a_midmag) & 0xffff)
61#define N_GETMID_NET(ex) \
62 ((ntohl((ex).a_midmag) >> 16) & 0x03ff)
63#define N_GETFLAG_NET(ex) \
64 ((ntohl((ex).a_midmag) >> 26) & 0x3f)
65#define N_SETMAGIC_NET(ex,mag,mid,flag) \
66 ( (ex).a_midmag = htonl( (((flag)&0x3f)<<26) | (((mid)&0x03ff)<<16) | \
67 (((mag)&0xffff)) ) )
68
69#define N_ALIGN(ex,x) \
70 (N_GETMAGIC(ex) == ZMAGIC || N_GETMAGIC(ex) == QMAGIC || \
71 N_GETMAGIC_NET(ex) == ZMAGIC || N_GETMAGIC_NET(ex) == QMAGIC ? \
72 ((x) + __LDPGSZ - 1) & ~(__LDPGSZ - 1) : (x))
73
74/* Valid magic number check. */
75#define N_BADMAG(ex) \
76 (N_GETMAGIC(ex) != OMAGIC && N_GETMAGIC(ex) != NMAGIC && \
77 N_GETMAGIC(ex) != ZMAGIC && N_GETMAGIC(ex) != QMAGIC && \
78 N_GETMAGIC_NET(ex) != OMAGIC && N_GETMAGIC_NET(ex) != NMAGIC && \
79 N_GETMAGIC_NET(ex) != ZMAGIC && N_GETMAGIC_NET(ex) != QMAGIC)
80
81
82/* Address of the bottom of the text segment. */
83#define N_TXTADDR(ex) \
84 ((N_GETMAGIC(ex) == OMAGIC || N_GETMAGIC(ex) == NMAGIC || \
85 N_GETMAGIC(ex) == ZMAGIC) ? 0 : __LDPGSZ)
86
87/* Address of the bottom of the data segment. */
88#define N_DATADDR(ex) \
89 N_ALIGN(ex, N_TXTADDR(ex) + (ex).a_text)
90
91/* Text segment offset. */
92#define N_TXTOFF(ex) \
93 (N_GETMAGIC(ex) == ZMAGIC ? __LDPGSZ : (N_GETMAGIC(ex) == QMAGIC || \
94 N_GETMAGIC_NET(ex) == ZMAGIC) ? 0 : sizeof(struct exec))
95
96/* Data segment offset. */
97#define N_DATOFF(ex) \
98 N_ALIGN(ex, N_TXTOFF(ex) + (ex).a_text)
99
100/* Relocation table offset. */
101#define N_RELOFF(ex) \
102 N_ALIGN(ex, N_DATOFF(ex) + (ex).a_data)
103
104/* Symbol table offset. */
105#define N_SYMOFF(ex) \
106 (N_RELOFF(ex) + (ex).a_trsize + (ex).a_drsize)
107
108/* String table offset. */
109#define N_STROFF(ex) (N_SYMOFF(ex) + (ex).a_syms)
110
111/*
112 * Header prepended to each a.out file.
113 * only manipulate the a_midmag field via the
114 * N_SETMAGIC/N_GET{MAGIC,MID,FLAG} macros in a.out.h
115 */
116
117struct exec {
118 unsigned long a_midmag; /* htonl(flags<<26 | mid<<16 | magic) */
119 unsigned long a_text; /* text segment size */
120 unsigned long a_data; /* initialized data size */
121 unsigned long a_bss; /* uninitialized data size */
122 unsigned long a_syms; /* symbol table size */
123 unsigned long a_entry; /* entry point */
124 unsigned long a_trsize; /* text relocation size */
125 unsigned long a_drsize; /* data relocation size */
126};
127#define a_magic a_midmag /* XXX Hack to work with current kern_execve.c */
128
129/* a_magic */
130#define OMAGIC 0407 /* old impure format */
131#define NMAGIC 0410 /* read-only text */
132#define ZMAGIC 0413 /* demand load format */
133#define QMAGIC 0314 /* "compact" demand load format */
134
135/* a_mid */
136#define MID_ZERO 0 /* unknown - implementation dependent */
137#define MID_SUN010 1 /* sun 68010/68020 binary */
138#define MID_SUN020 2 /* sun 68020-only binary */
139#define MID_I386 134 /* i386 BSD binary */
140#define MID_HP200 200 /* hp200 (68010) BSD binary */
141#define MID_HP300 300 /* hp300 (68020+68881) BSD binary */
142#define MID_HPUX 0x20C /* hp200/300 HP-UX binary */
143#define MID_HPUX800 0x20B /* hp800 HP-UX binary */
144
145/*
146 * a_flags
147 */
148#define EX_DYNAMIC 0x20 /* a.out contains run-time link-edit info */
149
150#endif /* !_EXEC_H_ */