add map_anonymoys support

libs/libks/src/include/mpool.h

@@ -66,6 +66,11 @@
  */
 #define MPOOL_FLAG_USE_SBRK		(1<<3)
 
+/*
+ * Use MMAP_ANONYMOUS instead of /dev/zero
+ */
+#define MPOOL_FLAG_ANONYMOUS		(1<<4)
+
 /*
  * Mpool error codes
  */

libs/libks/src/include/mpool_loc.h

@@ -73,6 +73,7 @@
 typedef struct {
 	unsigned int		mp_magic;	/* magic number for struct */
 	unsigned int		mp_flags;	/* flags for the struct */
+	unsigned int		mp_mmflags;	/* flags for mmap */
 	unsigned long		mp_alloc_c;	/* number of allocations */
 	unsigned long		mp_user_alloc;	/* user bytes allocated */
 	unsigned long		mp_max_alloc;	/* maximum user bytes allocated */