Refactor ALL the things + enable LTO

bootloader/libs/fatfs/ffsystem.c

@@ -0,0 +1,39 @@
+/*------------------------------------------------------------------------*/
+/* Sample Code of OS Dependent Functions for FatFs                        */
+/* (C) ChaN, 2017                                                         */
+/* (C) CTCaer, 2018                                                       */
+/*------------------------------------------------------------------------*/
+
+
+#include "ff.h"
+#include "../../mem/heap.h"
+
+
+
+#if FF_USE_LFN == 3	/* Dynamic memory allocation */
+
+/*------------------------------------------------------------------------*/
+/* Allocate a memory block                                                */
+/*------------------------------------------------------------------------*/
+
+void* ff_memalloc (	/* Returns pointer to the allocated memory block (null on not enough core) */
+	UINT msize		/* Number of bytes to allocate */
+)
+{
+	return malloc(msize);	/* Allocate a new memory block with POSIX API */
+}
+
+
+/*------------------------------------------------------------------------*/
+/* Free a memory block                                                    */
+/*------------------------------------------------------------------------*/
+
+void ff_memfree (
+	void* mblock	/* Pointer to the memory block to free (nothing to do for null) */
+)
+{
+	free(mblock);	/* Free the memory block with POSIX API */
+}
+
+#endif
+