Commit | Line | Data |
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4f1d9bd8 NC |
1 | /* a.out specifics for Sequent Symmetry running Dynix 3.x |
2 | ||
6f2750fe | 3 | Copyright (C) 2001-2016 Free Software Foundation, Inc. |
4f1d9bd8 NC |
4 | |
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
e4e42b45 | 7 | the Free Software Foundation; either version 3 of the License, or |
4f1d9bd8 | 8 | (at your option) any later version. |
e4e42b45 | 9 | |
4f1d9bd8 NC |
10 | This program is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
e4e42b45 | 14 | |
4f1d9bd8 NC |
15 | You should have received a copy of the GNU General Public License |
16 | along with this program; if not, write to the Free Software | |
e4e42b45 NC |
17 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
18 | MA 02110-1301, USA. */ | |
4f1d9bd8 | 19 | |
252b5132 RH |
20 | #ifndef A_OUT_DYNIX3_H |
21 | #define A_OUT_DYNIX3_H | |
22 | ||
23 | #define external_exec dynix_external_exec | |
24 | ||
25 | /* struct exec for Dynix 3 | |
4f1d9bd8 NC |
26 | |
27 | a_gdtbl and a_bootstrap are only for standalone binaries. | |
28 | Shared data fields are not supported by the kernel as of Dynix 3.1, | |
29 | but are supported by Dynix compiler programs. */ | |
30 | struct dynix_external_exec | |
31 | { | |
32 | unsigned char e_info[4]; | |
33 | unsigned char e_text[4]; | |
34 | unsigned char e_data[4]; | |
35 | unsigned char e_bss[4]; | |
36 | unsigned char e_syms[4]; | |
37 | unsigned char e_entry[4]; | |
38 | unsigned char e_trsize[4]; | |
39 | unsigned char e_drsize[4]; | |
40 | unsigned char e_g_code[8]; | |
41 | unsigned char e_g_data[8]; | |
42 | unsigned char e_g_desc[8]; | |
43 | unsigned char e_shdata[4]; | |
44 | unsigned char e_shbss[4]; | |
45 | unsigned char e_shdrsize[4]; | |
46 | unsigned char e_bootstrap[44]; | |
47 | unsigned char e_reserved[12]; | |
48 | unsigned char e_version[4]; | |
49 | }; | |
252b5132 RH |
50 | |
51 | #define EXEC_BYTES_SIZE (128) | |
52 | ||
4f1d9bd8 NC |
53 | /* All executables under Dynix are demand paged with read-only text, |
54 | Thus no NMAGIC. | |
55 | ||
56 | ZMAGIC has a page of 0s at virtual 0, | |
57 | XMAGIC has an invalid page at virtual 0. */ | |
252b5132 RH |
58 | #define OMAGIC 0x12eb /* .o */ |
59 | #define ZMAGIC 0x22eb /* zero @ 0, demand load */ | |
60 | #define XMAGIC 0x32eb /* invalid @ 0, demand load */ | |
61 | #define SMAGIC 0x42eb /* standalone, not supported here */ | |
62 | ||
63 | #define N_BADMAG(x) ((OMAGIC != N_MAGIC(x)) && \ | |
64 | (ZMAGIC != N_MAGIC(x)) && \ | |
65 | (XMAGIC != N_MAGIC(x)) && \ | |
66 | (SMAGIC != N_MAGIC(x))) | |
67 | ||
68 | #define N_ADDRADJ(x) ((ZMAGIC == N_MAGIC(x) || XMAGIC == N_MAGIC(x)) ? 0x1000 : 0) | |
69 | ||
70 | #define N_TXTOFF(x) (EXEC_BYTES_SIZE) | |
71 | #define N_DATOFF(x) (N_TXTOFF(x) + N_TXTSIZE(x)) | |
bbb1afc8 AM |
72 | #define N_SHDATOFF(x) (N_DATOFF(x) + (x)->a_data) |
73 | #define N_TRELOFF(x) (N_SHDATOFF(x) + (x)->a_shdata) | |
74 | #define N_DRELOFF(x) (N_TRELOFF(x) + (x)->a_trsize) | |
75 | #define N_SHDRELOFF(x) (N_DRELOFF(x) + (x)->a_drsize) | |
76 | #define N_SYMOFF(x) (N_SHDRELOFF(x) + (x)->a_shdrsize) | |
77 | #define N_STROFF(x) (N_SYMOFF(x) + (x)->a_syms) | |
252b5132 RH |
78 | |
79 | #define N_TXTADDR(x) \ | |
80 | (((OMAGIC == N_MAGIC(x)) || (SMAGIC == N_MAGIC(x))) ? 0 \ | |
81 | : TEXT_START_ADDR + EXEC_BYTES_SIZE) | |
82 | ||
83 | #define N_TXTSIZE(x) \ | |
bbb1afc8 AM |
84 | (((OMAGIC == N_MAGIC(x)) || (SMAGIC == N_MAGIC(x))) ? ((x)->a_text) \ |
85 | : ((x)->a_text - N_ADDRADJ(x) - EXEC_BYTES_SIZE)) | |
252b5132 RH |
86 | |
87 | #endif /* A_OUT_DYNIX3_H */ |