The printk(), panic() and kernel.h update

kernel/include/types.h

@@ -0,0 +1,44 @@
+#ifndef _TYPES_H
+#define _TYPES_H
+
+// NULL pointer
+#define NULL ((void*)0)
+
+/*
+ * Integral types
+ */
+typedef unsigned char	uint8_t;
+typedef unsigned short	uint16_t;
+typedef unsigned int	uint32_t;
+typedef unsigned long	uint64_t;
+typedef signed char	int8_t;
+typedef signed short	int16_t;
+typedef signed int	int32_t;
+typedef signed long	int64_t;
+_Static_assert(sizeof(int8_t)   == 1, "int8_t not 8 bits.");
+_Static_assert(sizeof(int16_t)  == 2, "int16_t not 16 bits.");
+_Static_assert(sizeof(int32_t)  == 4, "int32_t not 32 bits.");
+_Static_assert(sizeof(int64_t)  == 8, "int64_t not 64 bits.");
+_Static_assert(sizeof(uint8_t)  == 1, "uint8_t not 8 bits.");
+_Static_assert(sizeof(uint16_t) == 2, "uint16_t not 16 bits.");
+_Static_assert(sizeof(uint32_t) == 4, "uint32_t not 32 bits.");
+_Static_assert(sizeof(uint64_t) == 8, "uint64_t not 64 bits.");
+
+// TODO: Add a static assertion here
+typedef uint64_t	size_t;
+typedef int64_t		ssize_t;
+typedef size_t		offset_t;
+
+typedef uint64_t	uintptr_t;
+typedef int64_t		intptr_t;
+_Static_assert(sizeof(intptr_t)  == sizeof(void*), "intptr_t must match pointer size.");
+_Static_assert(sizeof(uintptr_t) == sizeof(void*), "uintptr_t must match pointer size.");
+
+/*
+ * Boolean
+ */
+#define bool _Bool
+#define true 1
+#define false 0
+
+#endif