add memcpy

shamelessly stolen from newlib

kernel/lib.c

@@ -322,6 +322,20 @@ uint32_t strncpy(const int8_t* src, int8_t* dest, uint32_t n)
 	return 0;
 }
 
+void* memccpy (void *__restrict dst0, const void *__restrict src0, uint32_t len0)
+{
+	void *ptr = NULL;
+	char *dst = (char *) dst0;
+	char *src = (char *) src0;
+
+	while (len0--)
+	{
+		*dst++ = *src++;
+	}
+
+	return ptr;
+}
+
 
 /* 
  * These font data were read out of video memory during text mode and

kernel/lib.h

@@ -33,6 +33,7 @@ uint32_t strlen(const int8_t* s);
 uint32_t strncmp(const int8_t* a, const int8_t* b, uint32_t n);
 uint32_t strcpy(const int8_t* src, int8_t* dest);
 uint32_t strncpy(const int8_t* src, int8_t* dest, uint32_t n);
+void* memccpy (void *__restrict dst0, const void *__restrict src0, uint32_t len0);
 void clear(void);
 
 extern unsigned char font_data[256][16];