| 123456789101112131415161718192021222324252627 |
- From 7aff5a70f3580426865b6c86437a3e47546d13f7 Mon Sep 17 00:00:00 2001
- From: Hauke Mehrtens <hauke@hauke-m.de>
- Date: Sun, 16 Dec 2018 13:02:49 +0100
- Subject: [PATCH] bn_mul.h: Use optimized MULADDC code only on ARM >= 6
- The optimized code uses umaal which was only introduced with ARMv6 and
- is not available on older versions.
- This broke compilation with arm926ej-s CPU for me.
- Fixes: 16b1bd89326 ("bn_mul.h: add ARM DSP optimized MULADDC code")
- Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
- ---
- include/mbedtls/bn_mul.h | 3 ++-
- 1 file changed, 2 insertions(+), 1 deletion(-)
- --- a/include/mbedtls/bn_mul.h
- +++ b/include/mbedtls/bn_mul.h
- @@ -638,7 +638,8 @@
- "r6", "r7", "r8", "r9", "cc" \
- );
-
- -#elif defined (__ARM_FEATURE_DSP) && (__ARM_FEATURE_DSP == 1)
- +#elif defined (__ARM_FEATURE_DSP) && (__ARM_FEATURE_DSP == 1) && \
- + __TARGET_ARCH_ARM >= 6
-
- #define MULADDC_INIT \
- asm(
|
