include/linux/elf-randomize.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ELF_RANDOMIZE_H
   3 #define _ELF_RANDOMIZE_H
   4
   5 struct mm_struct;
   6
   7 #ifndef CONFIG_ARCH_HAS_ELF_RANDOMIZE
   8 static inline unsigned long arch_mmap_rnd(void) { return 0; }
   9 # if defined(arch_randomize_brk) && defined(CONFIG_COMPAT_BRK)
  10 #  define compat_brk_randomized
  11 # endif
  12 # ifndef arch_randomize_brk
  13 #  define arch_randomize_brk(mm)        (mm->brk)
  14 # endif
  15 #else
  16 extern unsigned long arch_mmap_rnd(void);
  17 extern unsigned long arch_randomize_brk(struct mm_struct *mm);
  18 # ifdef CONFIG_COMPAT_BRK
  19 #  define compat_brk_randomized
  20 # endif
  21 #endif
  22
  23 #endif