diff options
Diffstat (limited to 'arch/arm/Kconfig')
| -rw-r--r-- | arch/arm/Kconfig | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 924ea5bec5bf..2284bda18a8d 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -296,6 +296,30 @@ config MMU Select if you want MMU-based virtualised addressing space support by paged memory management. If unsure, say 'Y'. +config ARCH_MMAP_RND_BITS_MIN + int + default 8 + +config ARCH_MMAP_RND_BITS_MAX + int + default 14 if MMU && PAGE_OFFSET=0x40000000 + default 15 if MMU && PAGE_OFFSET=0x80000000 + default 16 if MMU + default 8 + +config ARCH_MMAP_RND_BITS + int "Number of bits to use for ASLR of mmap base address" if EXPERT + range ARCH_MMAP_RND_BITS_MIN ARCH_MMAP_RND_BITS_MAX + default ARCH_MMAP_RND_BITS_MIN + help + This value can be used to select the number of bits to use to + determine the random offset to the base address of vma regions + resulting from mmap allocations. This value will be bounded + by the architecture's minimum and maximum supported values. + + This value can be changed after boot using the + /proc/sys/kernel/mmap_rnd_bits tunable + # # The "ARM system type" choice list is ordered alphabetically by option # text. Please add new entries in the option alphabetic order. |