1 | /* Function descriptors. Generic version. |
2 | Copyright (C) 1995-2022 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library 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 GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #ifndef dl_fptr_h |
20 | #define dl_fptr_h 1 |
21 | |
22 | /* An FDESC is a function descriptor. */ |
23 | |
24 | struct fdesc |
25 | { |
26 | ElfW(Addr) ip; /* code entry point */ |
27 | ElfW(Addr) gp; /* global pointer */ |
28 | }; |
29 | |
30 | struct fdesc_table |
31 | { |
32 | struct fdesc_table *next; |
33 | unsigned int len; /* # of entries in fdesc table */ |
34 | volatile unsigned int first_unused; /* index of first available entry */ |
35 | struct fdesc fdesc[0]; |
36 | }; |
37 | |
38 | struct link_map; |
39 | |
40 | extern ElfW(Addr) _dl_boot_fptr_table []; |
41 | |
42 | extern ElfW(Addr) _dl_make_fptr (struct link_map *, const ElfW(Sym) *, |
43 | ElfW(Addr)); |
44 | |
45 | #endif /* !dl_fptr_h */ |
46 | |