Initial commit

kernel/arch/x86_64/include/bits/usercopy.h

@@ -0,0 +1,9 @@
+#pragma once
+
+#include <kernel/compiler.h>
+#include <stddef.h>
+#include <stdint.h>
+
+bool arch_usercopy_read(uint8_t* dst, const __user uint8_t* src, size_t len);
+bool arch_usercopy_write(__user uint8_t* dst, const uint8_t* src, size_t len);
+bool arch_usercopy_strlen(const __user uint8_t* str, size_t max, size_t* len);