Squash commits for public release

kernel/include/mem/kmemzone.h

@@ -0,0 +1,35 @@
+#ifndef _KERNEL_MEM_KMEMZONE_H
+#define _KERNEL_MEM_KMEMZONE_H
+
+#include <libkern/types.h>
+#include <mem/bits/zone.h>
+
+extern char __text_start[];
+extern char __text_end[];
+extern char __rodata_start[];
+extern char __rodata_end[];
+extern char __data_start[];
+extern char __data_end[];
+extern char __bss_start[];
+extern char __bss_end[];
+extern char __stack_start[];
+extern char __stack_end[];
+extern char __end[];
+
+struct __kmemzone {
+    union {
+        uintptr_t start;
+        uint8_t* ptr;
+    };
+    size_t len;
+};
+typedef struct __kmemzone kmemzone_t;
+
+void kmemzone_init();
+void kmemzone_init_stage2();
+
+kmemzone_t kmemzone_new(size_t size);
+kmemzone_t kmemzone_new_aligned(size_t size, size_t alignment);
+int kmemzone_free(kmemzone_t zone);
+
+#endif // _KERNEL_MEM_KMEMZONE_H