From: Michal Simek Date: Tue, 4 Nov 2014 12:30:14 +0000 (+0100) Subject: microblaze: Support stack protection feature X-Git-Tag: v2015.04-rc1~64^2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=da931af1b5eaae36dd9e3fb2eaf6b62201ed3a43;p=platform%2Fkernel%2Fu-boot.git microblaze: Support stack protection feature Ensure that stack didn't rewrite important part of u-boot. Signed-off-by: Michal Simek --- diff --git a/arch/microblaze/cpu/start.S b/arch/microblaze/cpu/start.S index f466031..84c29e5 100644 --- a/arch/microblaze/cpu/start.S +++ b/arch/microblaze/cpu/start.S @@ -23,11 +23,15 @@ _start: mts rmsr, r0 /* disable cache */ + addi r8, r0, __end + mts rslr, r8 #if defined(CONFIG_SPL_BUILD) addi r1, r0, CONFIG_SPL_STACK_ADDR + mts rshr, r1 addi r1, r1, -4 /* Decrement SP to top of memory */ #else addi r1, r0, CONFIG_SYS_INIT_SP_OFFSET + mts rshr, r1 addi r1, r1, -4 /* Decrement SP to top of memory */ /* Find-out if u-boot is running on BIG/LITTLE endian platform