[ARM] implement arch_randomize_brk()

For this feature to take effect, CONFIG_COMPAT_BRK must be turned
off.  This can safely be turned off for any EABI user space versions.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
(cherry picked from commit 990cb8acf23cab19a2930f1ed5e7dc108f89079b)

Signed-off-by: Leann Ogasawara <leann.ogasawara@canonical.com>

diff --git a/arch/arm/include/asm/elf.h b/arch/arm/include/asm/elf.h
index c3cd875..41812eb 100644 (file)
--- a/arch/arm/include/asm/elf.h
+++ b/arch/arm/include/asm/elf.h
@@ -134,3 +134,4 @@ extern int vectors_user_mapping(void);
 #define ARCH_HAS_SETUP_ADDITIONAL_PAGES
 
 #endif
+