mh_sha256: add an mh_sha256 assembly implementation with vector extension for riscv64

Signed-off-by: Julian Zhu <[email protected]>

Author: HeliC829

mh_sha256/Makefile.am

@@ -63,7 +63,10 @@ lsrc_aarch64 += $(lsrc_sha256)	\
 		mh_sha256/mh_sha256_block_base.c
 
 lsrc_riscv64 += $(lsrc_sha256)	\
-		mh_sha256/mh_sha256_base_aliases.c \
+		mh_sha256/riscv64/mh_sha256_multibinary.S \
+		mh_sha256/riscv64/mh_sha256_riscv64_dispatcher.c \
+		mh_sha256/riscv64/mh_sha256_block_rvv.S \
+		mh_sha256/riscv64/mh_sha256_block.c \
 		mh_sha256/mh_sha256.c \
 		mh_sha256/mh_sha256_finalize_base.c \
 		mh_sha256/mh_sha256_update_base.c \

mh_sha256/riscv64/mh_sha256_block.c

@@ -0,0 +1,55 @@
+/**********************************************************************
+  Copyright (c) 2025 Institute of Software Chinese Academy of Sciences (ISCAS).
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in
+      the documentation and/or other materials provided with the
+      distribution.
+    * Neither the name of ISCAS nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+**********************************************************************/
+
+#include <string.h>
+#include "mh_sha256_internal.h"
+
+void
+mh_sha256_block_rvv(const uint8_t *input_data,
+                    uint32_t digests[ISAL_SHA256_DIGEST_WORDS][ISAL_HASH_SEGS],
+                    uint8_t frame_buffer[ISAL_MH_SHA256_BLOCK_SIZE], uint32_t num_blocks);
+/***************mh_sha256_update***********/
+// mh_sha256_update_rvv.c
+#define MH_SHA256_UPDATE_FUNCTION mh_sha256_update_rvv
+#define MH_SHA256_BLOCK_FUNCTION  mh_sha256_block_rvv
+#include "mh_sha256_update_base.c"
+#undef MH_SHA256_UPDATE_FUNCTION
+#undef MH_SHA256_BLOCK_FUNCTION
+
+/***************mh_sha256_finalize AND mh_sha256_tail***********/
+// mh_sha256_tail is used to calculate the last incomplete src data block
+// mh_sha256_finalize is a isal_mh_sha256_ctx wrapper of mh_sha256_tail
+// mh_sha256_finalize_rvv.c and mh_sha256_tail_rvv.c
+#define MH_SHA256_FINALIZE_FUNCTION mh_sha256_finalize_rvv
+#define MH_SHA256_TAIL_FUNCTION     mh_sha256_tail_rvv
+#define MH_SHA256_BLOCK_FUNCTION    mh_sha256_block_rvv
+#include "mh_sha256_finalize_base.c"
+#undef MH_SHA256_FINALIZE_FUNCTION
+#undef MH_SHA256_TAIL_FUNCTION
+#undef MH_SHA256_BLOCK_FUNCTION