Integrate uACPI

kernel/uACPI/include/uacpi/platform/libc.h

@@ -0,0 +1,28 @@
+#pragma once
+
+#ifdef UACPI_OVERRIDE_LIBC
+#include "uacpi_libc.h"
+#else
+/*
+ * The following libc functions are used internally by uACPI and have a default
+ * (sub-optimal) implementation:
+ * - strcmp
+ * - strnlen
+ * - strlen
+ * - snprintf
+ * - vsnprintf
+ *
+ * The following use a builtin implementation only if UACPI_USE_BUILTIN_STRING
+ * is defined (more information can be found in the config.h header):
+ * - memcpy
+ * - memmove
+ * - memset
+ * - memcmp
+ *
+ * In case your platform happens to implement optimized verisons of the helpers
+ * above, you are able to make uACPI use those instead by overriding them like so:
+ *
+ * #define uacpi_memcpy my_fast_memcpy
+ * #define uacpi_snprintf my_fast_snprintf
+ */
+#endif