user: implement mlibc as the libc, finally.

It's finally done..

Signed-off-by: kaguya <vpshinomiya@protonmail.com>

user/include/mlibc/options/internal/riscv64/hwprobe.cpp

@@ -0,0 +1,18 @@
+#include <abi-bits/errno.h>
+#include <bits/ensure.h>
+#include <mlibc/internal-sysdeps.hpp>
+#include <sys/hwprobe.h>
+
+int __riscv_hwprobe(struct riscv_hwprobe *pairs, size_t pair_count, size_t cpusetsize, cpu_set_t *cpus, unsigned int flags) {
+	if (!mlibc::sys_riscv_hwprobe) {
+		MLIBC_MISSING_SYSDEP();
+		return -ENOSYS;
+	}
+
+	int ret = mlibc::sys_riscv_hwprobe(pairs, pair_count, cpusetsize, cpus, flags);
+
+	if (ret)
+		return -ret;
+
+	return 0;
+}