refactor paging code. regression on loading init program

1 files changed, 16 insertions, 0 deletions

diff --git a/lib/untyped.c b/lib/untyped.c
new file mode 100644
index 0000000..8a20f63
--- /dev/null
+++ b/lib/untyped.c
@@ -0,0 +1,16 @@
+#include "include/object.h"
+#include "error.h"
+
+int
+ko_untyped_split(objdir_entry_t *target, objdir_entry_t *dest, size_t bytes)
+{
+    size_t *untyped = ko_entry_data(target);
+    if(*untyped <= bytes) return KE_TOOSMALL;
+
+    *untyped -= bytes;
+    dest->data = target->data + *untyped;
+    *(size_t*)ko_entry_data(dest) = bytes;
+    dest->type = KO_MEMORY_UNTYPED;
+
+    return 0;
+}