The current code increases its stack frame size a couple of times throughout the function, but still performs some writes below the stack pointer.
This change applies the fix from the original author so all writes to the stack are above the stack pointer. Taken from origin: http://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=1a9d60d2 Signed-off-by: Ard Biesheuvel <ard.biesheu...@linaro.org> --- arch/arm/crypto/sha1-armv4-large.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/crypto/sha1-armv4-large.S b/arch/arm/crypto/sha1-armv4-large.S index 92c6eed..99207c4 100644 --- a/arch/arm/crypto/sha1-armv4-large.S +++ b/arch/arm/crypto/sha1-armv4-large.S @@ -195,6 +195,7 @@ ENTRY(sha1_block_data_order) add r3,r3,r10 @ E+=F_00_19(B,C,D) cmp r14,sp bne .L_00_15 @ [((11+4)*5+2)*3] + sub sp,sp,#25*4 #if __ARM_ARCH__<7 ldrb r10,[r1,#2] ldrb r9,[r1,#3] @@ -290,7 +291,6 @@ ENTRY(sha1_block_data_order) add r3,r3,r10 @ E+=F_00_19(B,C,D) ldr r8,.LK_20_39 @ [+15+16*4] - sub sp,sp,#25*4 cmn sp,#0 @ [+3], clear carry to denote 20_39 .L_20_39_or_60_79: ldr r9,[r14,#15*4] -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
