Kernel Size Awareness

Modified the linker script + Added an init function to System.pas to be called at system boot, this allows tracking of the Kernel start & end addresses, and thus, allows us to calculate the kernel size.

src/include/system.pas

@@ -143,6 +143,22 @@ type
 
     PText = ^Text;
 
+var
+  AK_START : uint32; external name 'kernel_start';
+  AK_END   : uint32; external name 'kernel_end';
+  ASURO_KERNEL_START : uint32;
+  ASURO_KERNEL_END   : uint32;
+  ASURO_KERNEL_SIZE  : uint32;
+
+procedure init();
+
 implementation
 
+procedure init();
+begin
+    ASURO_KERNEL_START := uint32(@AK_START);
+    ASURO_KERNEL_END := uint32(@AK_END);
+    ASURO_KERNEL_SIZE:= ASURO_KERNEL_END - ASURO_KERNEL_START;
+end;
+
 end.

src/kernel.pas

@@ -125,6 +125,9 @@ var
    HM              : PHashMap;
    
 begin
+     { Init the base system unit }
+     System.init();
+
      { Serial Init }
      serial.init();