Squash commits for public release

kernel/include/libkern/libkern.h

@@ -0,0 +1,45 @@
+#ifndef _KERNEL_LIBKERN_LIBKERN_H
+#define _KERNEL_LIBKERN_LIBKERN_H
+
+#include <libkern/kassert.h>
+#include <libkern/mem.h>
+#include <libkern/types.h>
+#include <libkern/umem.h>
+
+#define KB (1024)
+#define MB (1024 * 1024)
+
+/**
+ * SHORTCUTS
+ */
+
+#define TEST_FLAG(val, flag) (((val) & (flag)) == (flag))
+#define TEST_BIT(val, bitnum) (((val) & (1 << bitnum)) == (1 << bitnum))
+
+int stoi(void* str, int len);
+void htos(uintptr_t hex, char str[]);
+void dtos(uintptr_t dec, char str[]);
+void reverse(char s[]);
+size_t strlen(const char* s);
+int strcmp(const char* a, const char* b);
+int strncmp(const char* a, const char* b, size_t num);
+size_t ptrarray_len(const void** s);
+
+#ifndef max
+#define max(a, b) \
+    ({ __typeof__ (a) _a = (a); \
+       __typeof__ (b) _b = (b); \
+     _a > _b ? _a : _b; })
+#endif /* max */
+
+#ifndef min
+#define min(a, b) \
+    ({ __typeof__ (a) _a = (a); \
+       __typeof__ (b) _b = (b); \
+     _a < _b ? _a : _b; })
+#endif /* min */
+
+#define ROUND_CEIL(a, b) (((a) + ((b)-1)) & ~((b)-1))
+#define ROUND_FLOOR(a, b) ((a) & ~((b)-1))
+
+#endif // _KERNEL_LIBKERN_LIBKERN_H