Clean up linker script symbols

src/hulk/hulk.d

@@ -21,11 +21,11 @@ import hulk.pic;
 import hulk.acpi;
 import hulk.apic;
 
-extern extern(C) __gshared ubyte _hulk_total_size;
+extern extern(C) __gshared ubyte _hulk_bss_size;
 
 @(ldc.attributes.section(".hulk_header"))
 private __gshared HulkHeader hulk_header = {
-    &_hulk_total_size, /* total_size */
+    &_hulk_bss_size, /* hulk_bss_size */
     &hulk_start, /* entry */
     16u * 1024u, /* stack_size */
     HULK_VIRTUAL_BASE_ADDRESS, /* virt_base */