sysdeps/unix/sysv/linux/setvmaname.h

   1 /* Utilities functions to name memory mappings.
   2    Copyright (C) 2023-2024 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 __SETVMANAME_H
  20 #define __SETVMANAME_H
  21
  22 /* Set the NAME to the anonymous memory map START with size of LEN.
  23    It assumes well-formatted input.  */
  24 #if IS_IN(libc) || IS_IN(rtld)
  25 void __set_vma_name (void *start, size_t len, const char *name)
  26   attribute_hidden;
  27 #else
  28 #include <sys/prctl.h>
  29
  30 static inline void __set_vma_name (void *start, size_t len, const char *name)
  31 {
  32   prctl (PR_SET_VMA, PR_SET_VMA_ANON_NAME, start, len, name);
  33 }
  34 #endif
  35
  36 #endif