include/linux/elf-randomize.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 #ifndef _ELF_RANDOMIZE_H
0003 #define _ELF_RANDOMIZE_H
0004
0005 struct mm_struct;
0006
0007 #ifndef CONFIG_ARCH_HAS_ELF_RANDOMIZE
0008 static inline unsigned long arch_mmap_rnd(void) { return 0; }
0009 # if defined(arch_randomize_brk) && defined(CONFIG_COMPAT_BRK)
0010 #  define compat_brk_randomized
0011 # endif
0012 # ifndef arch_randomize_brk
0013 #  define arch_randomize_brk(mm)    (mm->brk)
0014 # endif
0015 #else
0016 extern unsigned long arch_mmap_rnd(void);
0017 extern unsigned long arch_randomize_brk(struct mm_struct *mm);
0018 # ifdef CONFIG_COMPAT_BRK
0019 #  define compat_brk_randomized
0020 # endif
0021 #endif
0022
0023 #endif