1 files changed, 43 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/riscv/multiarch/ifunc-impl-list.c b/sysdeps/unix/sysv/linux/riscv/multiarch/ifunc-impl-list.c
new file mode 100644
index 0000000000..9f806d7a9e
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/riscv/multiarch/ifunc-impl-list.c
@@ -0,0 +1,43 @@
+/* Enumerate available IFUNC implementations of a function.  RISCV version.
+   Copyright (C) 2024 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <ifunc-impl-list.h>
+#include <string.h>
+#include <sys/hwprobe.h>
+
+size_t
+__libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
+			size_t max)
+{
+  size_t i = max;
+
+  bool fast_unaligned = false;
+
+  struct riscv_hwprobe pair = { .key = RISCV_HWPROBE_KEY_CPUPERF_0 };
+  if (__riscv_hwprobe (&pair, 1, 0, NULL, 0) == 0
+      && (pair.value & RISCV_HWPROBE_MISALIGNED_MASK)
+          == RISCV_HWPROBE_MISALIGNED_FAST)
+    fast_unaligned = true;
+
+  IFUNC_IMPL (i, name, memcpy,
+	      IFUNC_IMPL_ADD (array, i, memcpy, fast_unaligned,
+			      __memcpy_noalignment)
+	      IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_generic))
+
+  return 0;
+}