| Kees Cook | 2b68f6c | 2015-04-14 15:48:00 -0700 | [diff] [blame] | 1 | #ifndef _ELF_RANDOMIZE_H |
| 2 | #define _ELF_RANDOMIZE_H |
| 3 | |
| Kees Cook | 204db6e | 2015-04-14 15:48:12 -0700 | [diff] [blame] | 4 | struct mm_struct; |
| 5 | |
| Kees Cook | 2b68f6c | 2015-04-14 15:48:00 -0700 | [diff] [blame] | 6 | #ifndef CONFIG_ARCH_HAS_ELF_RANDOMIZE |
| 7 | static inline unsigned long arch_mmap_rnd(void) { return 0; } |
| Kees Cook | 204db6e | 2015-04-14 15:48:12 -0700 | [diff] [blame] | 8 | # if defined(arch_randomize_brk) && defined(CONFIG_COMPAT_BRK) |
| 9 | # define compat_brk_randomized |
| 10 | # endif |
| 11 | # ifndef arch_randomize_brk |
| 12 | # define arch_randomize_brk(mm) (mm->brk) |
| 13 | # endif |
| Kees Cook | 2b68f6c | 2015-04-14 15:48:00 -0700 | [diff] [blame] | 14 | #else |
| 15 | extern unsigned long arch_mmap_rnd(void); |
| Kees Cook | 204db6e | 2015-04-14 15:48:12 -0700 | [diff] [blame] | 16 | extern unsigned long arch_randomize_brk(struct mm_struct *mm); |
| 17 | # ifdef CONFIG_COMPAT_BRK |
| 18 | # define compat_brk_randomized |
| 19 | # endif |
| Kees Cook | 2b68f6c | 2015-04-14 15:48:00 -0700 | [diff] [blame] | 20 | #endif |
| 21 | |
| 22 | #endif |