commit 90b99bf964ab7e1521029b7b8c5d5a74cfa2edef
author Kazuyuki Kimura <k-kimura@sisynergy.com> Mon May 31 17:07:28 2021 +0900
committer Dave Rodgman <dave.rodgman@arm.com> Fri Jul 29 11:33:57 2022 +0100
tree 8c38cb382bcf5b025228d792103ab72a64f2abf1
parent 5048045f2525be02c298ee03f1ec983a57d3a900

fix issue #2020
Fixed a bug that the little-endian Microblaze does not work when MBEDTLS_HAVE_ASM is defined.

Signed-off-by: Kazuyuki Kimura <kim@wing.ocn.ne.jp>
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>

include/mbedtls/bn_mul.h

diff --git a/include/mbedtls/bn_mul.h b/include/mbedtls/bn_mul.h
index 029eff2..a3fc363 100644
--- a/include/mbedtls/bn_mul.h
+++ b/include/mbedtls/bn_mul.h
@@ -579,10 +579,20 @@
         "andi  r7,   r6, 0xffff \n\t"   \
         "bsrli r6,   r6, 16     \n\t"
 
-#define MULADDC_CORE                    \
+#if(__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
+#define MULADDC_LHUI                    \
+        "lhui  r9,   r3,   0    \n\t"   \
+        "addi  r3,   r3,   2    \n\t"   \
+        "lhui  r8,   r3,   0    \n\t"
+#else
+#define MULADDC_LHUI                    \
         "lhui  r8,   r3,   0    \n\t"   \
         "addi  r3,   r3,   2    \n\t"   \
-        "lhui  r9,   r3,   0    \n\t"   \
+        "lhui  r9,   r3,   0    \n\t"
+#endif
+
+#define MULADDC_CORE                    \
+        MULADDC_LHUI                    \
         "addi  r3,   r3,   2    \n\t"   \
         "mul   r10,  r9,  r6    \n\t"   \
         "mul   r11,  r8,  r7    \n\t"   \