Commit | Line | Data |
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4f1d9bd8 NC |
1 | /* a.out specifics for Sequent Symmetry running Dynix 3.x |
2 | ||
3 | Copyright 2001 Free Software Foundation, Inc. | |
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 | |
7 | the Free Software Foundation; either version 2 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
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. | |
14 | ||
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 | |
17 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
18 | ||
252b5132 RH |
19 | #ifndef A_OUT_DYNIX3_H |
20 | #define A_OUT_DYNIX3_H | |
21 | ||
22 | #define external_exec dynix_external_exec | |
23 | ||
24 | /* struct exec for Dynix 3 | |
4f1d9bd8 NC |
25 | |
26 | a_gdtbl and a_bootstrap are only for standalone binaries. | |
27 | Shared data fields are not supported by the kernel as of Dynix 3.1, | |
28 | but are supported by Dynix compiler programs. */ | |
29 | struct dynix_external_exec | |
30 | { | |
31 | unsigned char e_info[4]; | |
32 | unsigned char e_text[4]; | |
33 | unsigned char e_data[4]; | |
34 | unsigned char e_bss[4]; | |
35 | unsigned char e_syms[4]; | |
36 | unsigned char e_entry[4]; | |
37 | unsigned char e_trsize[4]; | |
38 | unsigned char e_drsize[4]; | |
39 | unsigned char e_g_code[8]; | |
40 | unsigned char e_g_data[8]; | |
41 | unsigned char e_g_desc[8]; | |
42 | unsigned char e_shdata[4]; | |
43 | unsigned char e_shbss[4]; | |
44 | unsigned char e_shdrsize[4]; | |
45 | unsigned char e_bootstrap[44]; | |
46 | unsigned char e_reserved[12]; | |
47 | unsigned char e_version[4]; | |
48 | }; | |
252b5132 RH |
49 | |
50 | #define EXEC_BYTES_SIZE (128) | |
51 | ||
4f1d9bd8 NC |
52 | /* All executables under Dynix are demand paged with read-only text, |
53 | Thus no NMAGIC. | |
54 | ||
55 | ZMAGIC has a page of 0s at virtual 0, | |
56 | XMAGIC has an invalid page at virtual 0. */ | |
252b5132 RH |
57 | #define OMAGIC 0x12eb /* .o */ |
58 | #define ZMAGIC 0x22eb /* zero @ 0, demand load */ | |
59 | #define XMAGIC 0x32eb /* invalid @ 0, demand load */ | |
60 | #define SMAGIC 0x42eb /* standalone, not supported here */ | |
61 | ||
62 | #define N_BADMAG(x) ((OMAGIC != N_MAGIC(x)) && \ | |
63 | (ZMAGIC != N_MAGIC(x)) && \ | |
64 | (XMAGIC != N_MAGIC(x)) && \ | |
65 | (SMAGIC != N_MAGIC(x))) | |
66 | ||
67 | #define N_ADDRADJ(x) ((ZMAGIC == N_MAGIC(x) || XMAGIC == N_MAGIC(x)) ? 0x1000 : 0) | |
68 | ||
69 | #define N_TXTOFF(x) (EXEC_BYTES_SIZE) | |
70 | #define N_DATOFF(x) (N_TXTOFF(x) + N_TXTSIZE(x)) | |
71 | #define N_SHDATOFF(x) (N_DATOFF(x) + (x).a_data) | |
72 | #define N_TRELOFF(x) (N_SHDATOFF(x) + (x).a_shdata) | |
73 | #define N_DRELOFF(x) (N_TRELOFF(x) + (x).a_trsize) | |
74 | #define N_SHDRELOFF(x) (N_DRELOFF(x) + (x).a_drsize) | |
75 | #define N_SYMOFF(x) (N_SHDRELOFF(x) + (x).a_shdrsize) | |
76 | #define N_STROFF(x) (N_SYMOFF(x) + (x).a_syms) | |
77 | ||
78 | #define N_TXTADDR(x) \ | |
79 | (((OMAGIC == N_MAGIC(x)) || (SMAGIC == N_MAGIC(x))) ? 0 \ | |
80 | : TEXT_START_ADDR + EXEC_BYTES_SIZE) | |
81 | ||
82 | #define N_TXTSIZE(x) \ | |
83 | (((OMAGIC == N_MAGIC(x)) || (SMAGIC == N_MAGIC(x))) ? ((x).a_text) \ | |
84 | : ((x).a_text - N_ADDRADJ(x) - EXEC_BYTES_SIZE)) | |
85 | ||
86 | #endif /* A_OUT_DYNIX3_H */ |