2 * SPDX-License-Identifier: BSD-3-Clause
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31 * from: @(#)exec.h 8.1 (Berkeley) 6/11/93
35 #ifndef _IMGACT_AOUT_H_
36 #define _IMGACT_AOUT_H_
38 #define N_GETMAGIC(ex) \
39 ( le32toh((ex).a_midmag) & 0xffff )
40 #define N_GETMID(ex) \
41 ( (N_GETMAGIC_NET(ex) == ZMAGIC) ? N_GETMID_NET(ex) : \
42 ((ex).a_midmag >> 16) & 0x03ff )
43 #define N_GETFLAG(ex) \
44 ( (N_GETMAGIC_NET(ex) == ZMAGIC) ? N_GETFLAG_NET(ex) : \
45 ((ex).a_midmag >> 26) & 0x3f )
46 #define N_SETMAGIC(ex,mag,mid,flag) \
47 ( (ex).a_midmag = htole32((((flag) & 0x3f) <<26) | \
48 (((mid) & 0x03ff) << 16) | \
51 #define N_GETMAGIC_NET(ex) \
52 (ntohl((ex).a_midmag) & 0xffff)
53 #define N_GETMID_NET(ex) \
54 ((ntohl((ex).a_midmag) >> 16) & 0x03ff)
55 #define N_GETFLAG_NET(ex) \
56 ((ntohl((ex).a_midmag) >> 26) & 0x3f)
57 #define N_SETMAGIC_NET(ex,mag,mid,flag) \
58 ( (ex).a_midmag = htonl( (((flag)&0x3f)<<26) | (((mid)&0x03ff)<<16) \
59 | (((mag)&0xffff)) ) )
61 #define N_ALIGN(ex,x) \
62 (N_GETMAGIC(ex) == ZMAGIC || N_GETMAGIC(ex) == QMAGIC || \
63 N_GETMAGIC_NET(ex) == ZMAGIC || N_GETMAGIC_NET(ex) == QMAGIC ? \
64 ((x) + __LDPGSZ - 1) & ~(uint32_t)(__LDPGSZ - 1) : (x))
66 /* Valid magic number check. */
67 #define N_BADMAG(ex) \
68 (N_GETMAGIC(ex) != OMAGIC && N_GETMAGIC(ex) != NMAGIC && \
69 N_GETMAGIC(ex) != ZMAGIC && N_GETMAGIC(ex) != QMAGIC && \
70 N_GETMAGIC_NET(ex) != OMAGIC && N_GETMAGIC_NET(ex) != NMAGIC && \
71 N_GETMAGIC_NET(ex) != ZMAGIC && N_GETMAGIC_NET(ex) != QMAGIC)
73 /* Address of the bottom of the text segment. */
75 * This can not be done right. Abuse a_entry in some cases to handle kernels.
77 #define N_TXTADDR(ex) \
78 ((N_GETMAGIC(ex) == OMAGIC || N_GETMAGIC(ex) == NMAGIC || \
79 N_GETMAGIC(ex) == ZMAGIC) ? \
80 (le32toh((ex).a_entry) < le32toh((ex).a_text) ? 0 : \
81 le32toh((ex).a_entry) & ~__LDPGSZ) : __LDPGSZ)
83 /* Address of the bottom of the data segment. */
84 #define N_DATADDR(ex) \
85 N_ALIGN(ex, N_TXTADDR(ex) + le32toh((ex).a_text))
87 /* Text segment offset. */
88 #define N_TXTOFF(ex) \
89 (N_GETMAGIC(ex) == ZMAGIC ? __LDPGSZ : (N_GETMAGIC(ex) == QMAGIC || \
90 N_GETMAGIC_NET(ex) == ZMAGIC) ? 0 : sizeof(struct exec))
92 /* Data segment offset. */
93 #define N_DATOFF(ex) \
94 N_ALIGN(ex, N_TXTOFF(ex) + le32toh((ex).a_text))
96 /* Relocation table offset. */
97 #define N_RELOFF(ex) \
98 N_ALIGN(ex, N_DATOFF(ex) + le32toh((ex).a_data))
100 /* Symbol table offset. */
101 #define N_SYMOFF(ex) \
102 (N_RELOFF(ex) + le32toh((ex).a_trsize) + le32toh((ex).a_drsize))
104 /* String table offset. */
105 #define N_STROFF(ex) (N_SYMOFF(ex) + le32toh((ex).a_syms))
108 * Header prepended to each a.out file.
109 * Only manipulate the a_midmag field via the
110 * N_SETMAGIC/N_GET{MAGIC,MID,FLAG} macros.
114 uint32_t a_midmag; /* flags<<26 | mid<<16 | magic */
115 uint32_t a_text; /* text segment size */
116 uint32_t a_data; /* initialized data size */
117 uint32_t a_bss; /* uninitialized data size */
118 uint32_t a_syms; /* symbol table size */
119 uint32_t a_entry; /* entry point */
120 uint32_t a_trsize; /* text relocation size */
121 uint32_t a_drsize; /* data relocation size */
123 #define a_magic a_midmag /* Hack for emulators */
126 #define OMAGIC 0407 /* old impure format */
127 #define NMAGIC 0410 /* read-only text */
128 #define ZMAGIC 0413 /* demand load format */
129 #define QMAGIC 0314 /* "compact" demand load format */
132 #define MID_ZERO 0 /* unknown - implementation dependent */
133 #define MID_SUN010 1 /* sun 68010/68020 binary */
134 #define MID_SUN020 2 /* sun 68020-only binary */
135 #define MID_I386 134 /* i386 BSD binary */
136 #define MID_SPARC 138 /* sparc */
137 #define MID_ARM6 143 /* ARM6 */
138 #define MID_HP200 200 /* hp200 (68010) BSD binary */
139 #define MID_HP300 300 /* hp300 (68020+68881) BSD binary */
140 #define MID_HPUX 0x20C /* hp200/300 HP-UX binary */
141 #define MID_HPUX800 0x20B /* hp800 HP-UX binary */
146 #define EX_PIC 0x10 /* contains position independent code */
147 #define EX_DYNAMIC 0x20 /* contains run-time link-edit info */
148 #define EX_DPMASK 0x30 /* mask for the above */
154 int aout_coredump(struct thread *td, struct vnode *vp, off_t limit,
158 #endif /* !_IMGACT_AOUT_H_ */