Add build system scaffolding and libc headers

1 files changed, 16 insertions, 0 deletions

diff --git a/lib/libc/string/memcpy.c b/lib/libc/string/memcpy.c
new file mode 100644
index 00000000..505cc622
--- /dev/null
+++ b/lib/libc/string/memcpy.c
@@ -0,0 +1,16 @@
+#include <string.h>
+#include <features.h>
+
+weak void *memcpy(void *restrict s1, const void *restrict s2, size_t n);
+
+void *memcpy(void *restrict s1, const void *restrict s2, size_t n)
+{
+	unsigned char *dest = (unsigned char *)s1;
+	const unsigned char *src = (const unsigned char *)s2;
+
+	while (n--) {
+		*dest++ = *src++;
+	}
+
+	return s1;
+}