malloc/mcheck-init.c

   1 /* Copyright (C) 1991-2023 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 /* The object of this file should be installed as libmcheck.a,
  19    so one can do -lmcheck to turn on mcheck.  */
  20
  21 #include <malloc.h>
  22 #include <mcheck.h>
  23 #include <shlib-compat.h>
  24
  25 static void
  26 turn_on_mcheck (void)
  27 {
  28   mcheck (NULL);
  29 }
  30
  31 void (*__malloc_initialize_hook) (void) = turn_on_mcheck;
  32 compat_symbol_reference (libc, __malloc_initialize_hook,
  33                          __malloc_initialize_hook, GLIBC_2_0);