| 1 | /* Compatibility code for malloc debugging and state management. |
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| 2 | Copyright (C) 2001-2022 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 License as |
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| 7 | published by the Free Software Foundation; either version 2.1 of the |
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| 8 | 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; see the file COPYING.LIB. If |
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| 17 | not, see <https://www.gnu.org/licenses/>. */ |
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| 18 | |
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| 19 | #ifndef weak_variable |
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| 20 | # define weak_variable weak_function |
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| 21 | #endif |
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| 22 | |
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| 23 | #if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_24) |
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| 24 | void (*__malloc_initialize_hook) (void); |
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| 25 | compat_symbol (libc, __malloc_initialize_hook, |
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| 26 | __malloc_initialize_hook, GLIBC_2_0); |
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| 27 | #endif |
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| 28 | |
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| 29 | #if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_34) |
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| 30 | void weak_variable (*__after_morecore_hook) (void) = NULL; |
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| 31 | compat_symbol (libc, __after_morecore_hook, __after_morecore_hook, GLIBC_2_0); |
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| 32 | void *(*__morecore)(ptrdiff_t); |
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| 33 | compat_symbol (libc, __morecore, __morecore, GLIBC_2_0); |
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| 34 | |
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| 35 | void weak_variable (*__free_hook) (void *, const void *) = NULL; |
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| 36 | void *weak_variable (*__malloc_hook) (size_t, const void *) = NULL; |
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| 37 | void *weak_variable (*__realloc_hook) (void *, size_t, const void *) = NULL; |
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| 38 | void *weak_variable (*__memalign_hook) (size_t, size_t, const void *) = NULL; |
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| 39 | compat_symbol (libc, __free_hook, __free_hook, GLIBC_2_0); |
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| 40 | compat_symbol (libc, __malloc_hook, __malloc_hook, GLIBC_2_0); |
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| 41 | compat_symbol (libc, __realloc_hook, __realloc_hook, GLIBC_2_0); |
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| 42 | compat_symbol (libc, __memalign_hook, __memalign_hook, GLIBC_2_0); |
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| 43 | #endif |
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| 44 | |
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| 45 | /* |
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| 46 | * Local variables: |
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| 47 | * c-basic-offset: 2 |
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| 48 | * End: |
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| 49 | */ |
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| 50 | |
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