| 1 | /* Function descriptors. Generic version. |
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| 2 | Copyright (C) 1995-2022 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library; if not, see |
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| 17 | <https://www.gnu.org/licenses/>. */ |
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| 18 | |
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| 19 | #ifndef dl_fptr_h |
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| 20 | #define dl_fptr_h 1 |
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| 21 | |
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| 22 | /* An FDESC is a function descriptor. */ |
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| 23 | |
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| 24 | struct fdesc |
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| 25 | { |
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| 26 | ElfW(Addr) ip; /* code entry point */ |
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| 27 | ElfW(Addr) gp; /* global pointer */ |
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| 28 | }; |
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| 29 | |
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| 30 | struct fdesc_table |
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| 31 | { |
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| 32 | struct fdesc_table *next; |
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| 33 | unsigned int len; /* # of entries in fdesc table */ |
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| 34 | volatile unsigned int first_unused; /* index of first available entry */ |
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| 35 | struct fdesc fdesc[0]; |
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| 36 | }; |
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| 37 | |
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| 38 | struct link_map; |
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| 39 | |
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| 40 | extern ElfW(Addr) _dl_boot_fptr_table []; |
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| 41 | |
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| 42 | extern ElfW(Addr) _dl_make_fptr (struct link_map *, const ElfW(Sym) *, |
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| 43 | ElfW(Addr)); |
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| 44 | |
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| 45 | #endif /* !dl_fptr_h */ |
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| 46 | |
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