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authorKees Cook <keescook@chromium.org>2015-04-15 01:47:48 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-04-15 02:49:05 +0300
commitdd04cff1dceab18226853b555cf07914648a235f (patch)
tree6c543fccf16600754458e12aa61099ae4b638a06 /arch/arm64/include/asm/elf.h
parent82168140bc4cec7ec9bad39705518541149ff8b7 (diff)
downloadlinux-dd04cff1dceab18226853b555cf07914648a235f.tar.xz
arm64: standardize mmap_rnd() usage
In preparation for splitting out ET_DYN ASLR, this refactors the use of mmap_rnd() to be used similarly to arm and x86. This additionally enables mmap ASLR on legacy mmap layouts, which appeared to be missing on arm64, and was already supported on arm. Additionally removes a copy/pasted declaration of an unused function. Signed-off-by: Kees Cook <keescook@chromium.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/arm64/include/asm/elf.h')
-rw-r--r--arch/arm64/include/asm/elf.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/elf.h b/arch/arm64/include/asm/elf.h
index 1f65be393139..f724db00b235 100644
--- a/arch/arm64/include/asm/elf.h
+++ b/arch/arm64/include/asm/elf.h
@@ -125,7 +125,6 @@ typedef struct user_fpsimd_state elf_fpregset_t;
* the loader. We need to make sure that it is out of the way of the program
* that it will "exec", and that there is sufficient room for the brk.
*/
-extern unsigned long randomize_et_dyn(unsigned long base);
#define ELF_ET_DYN_BASE (2 * TASK_SIZE_64 / 3)
/*