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.

linker.script

@@ -2,7 +2,7 @@ ENTRY(loader)
 SECTIONS
 {
   . = 0xC0100000;
-
+  kernel_start = .;
   .text : AT(ADDR(.text) - 0xC0000000)
   {
     text = .; _text = .; __text = .;
@@ -33,4 +33,5 @@ SECTIONS
     . = ALIGN(4096);
   }
   end = .; _end = .; __end = .;
+  kernel_end = .;
 }

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();