From b5dbf3de561189140c73f915bd50c28ea69a1e19 Mon Sep 17 00:00:00 2001
From: Robert Clausecker <fuz@FreeBSD.org>
Date: Tue, 21 Oct 2025 20:55:41 +0200
Subject: [PATCH] libc/riscv64: implement bcopy() and bzero() through memcpy()
 and memset()

This picks up the accelerated string functions written by
strajabot@.

Event:		Google Summer of Code 2024
MFC after:	1 month
MFC to:		stable/15
See also:	79e01e7e643c9337d8d6046b6db7df674475a099
Approved by:	markj (mentor)
Differential Revision:	https://reviews.freebsd.org/D53248
---
 lib/libc/riscv/string/Makefile.inc |  2 ++
 lib/libc/riscv/string/bcopy.c      | 14 ++++++++++++++
 lib/libc/riscv/string/bzero.c      | 14 ++++++++++++++
 3 files changed, 30 insertions(+)
 create mode 100644 lib/libc/riscv/string/bcopy.c
 create mode 100644 lib/libc/riscv/string/bzero.c

diff --git a/lib/libc/riscv/string/Makefile.inc b/lib/libc/riscv/string/Makefile.inc
index 719f22f6077..6dae6b2cb62 100644
--- a/lib/libc/riscv/string/Makefile.inc
+++ b/lib/libc/riscv/string/Makefile.inc
@@ -1,4 +1,6 @@
 MDSRCS+= \
+	bcopy.c \
+	bzero.c \
 	memchr.S \
 	memcpy.S \
 	memset.S \
diff --git a/lib/libc/riscv/string/bcopy.c b/lib/libc/riscv/string/bcopy.c
new file mode 100644
index 00000000000..0dee529fb9d
--- /dev/null
+++ b/lib/libc/riscv/string/bcopy.c
@@ -0,0 +1,14 @@
+/*-
+ * Public domain.
+ */
+
+#include <string.h>
+
+#undef bcopy	/* _FORTIFY_SOURCE */
+
+void
+bcopy(const void *src, void *dst, size_t len)
+{
+
+	memmove(dst, src, len);
+}
diff --git a/lib/libc/riscv/string/bzero.c b/lib/libc/riscv/string/bzero.c
new file mode 100644
index 00000000000..d82f3061865
--- /dev/null
+++ b/lib/libc/riscv/string/bzero.c
@@ -0,0 +1,14 @@
+/*-
+ * Public domain.
+ */
+
+#include <string.h>
+
+#undef bzero	/* _FORTIFY_SOURCE */
+
+void
+bzero(void *b, size_t len)
+{
+
+	memset(b, 0, len);
+}