1  /* Compatibility code for malloc debugging and state management.
       2     Copyright (C) 2001-2023 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 License as
       7     published by the Free Software Foundation; either version 2.1 of the
       8     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; see the file COPYING.LIB.  If
      17     not, see <https://www.gnu.org/licenses/>.  */
      18  
      19  #ifndef weak_variable
      20  # define weak_variable weak_function
      21  #endif
      22  
      23  #if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_24)
      24  void (*__malloc_initialize_hook) (void);
      25  compat_symbol (libc, __malloc_initialize_hook,
      26  	       __malloc_initialize_hook, GLIBC_2_0);
      27  #endif
      28  
      29  #if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_34)
      30  void weak_variable (*__after_morecore_hook) (void) = NULL;
      31  compat_symbol (libc, __after_morecore_hook, __after_morecore_hook, GLIBC_2_0);
      32  void *(*__morecore)(ptrdiff_t);
      33  compat_symbol (libc, __morecore, __morecore, GLIBC_2_0);
      34  
      35  void weak_variable (*__free_hook) (void *, const void *) = NULL;
      36  void *weak_variable (*__malloc_hook) (size_t, const void *) = NULL;
      37  void *weak_variable (*__realloc_hook) (void *, size_t, const void *) = NULL;
      38  void *weak_variable (*__memalign_hook) (size_t, size_t, const void *) = NULL;
      39  compat_symbol (libc, __free_hook, __free_hook, GLIBC_2_0);
      40  compat_symbol (libc, __malloc_hook, __malloc_hook, GLIBC_2_0);
      41  compat_symbol (libc, __realloc_hook, __realloc_hook, GLIBC_2_0);
      42  compat_symbol (libc, __memalign_hook, __memalign_hook, GLIBC_2_0);
      43  #endif
      44  
      45  /*
      46   * Local variables:
      47   * c-basic-offset: 2
      48   * End:
      49   */