Userland: Hardcode the x86_64 kernel base address for now

Author: https://github.com/gunnarbeutner
Commit: 60b52cfb02
Pull-request: https://github.com/SerenityOS/serenity/pull/8891
Reviewed-by: https://github.com/ADKaster
Reviewed-by: https://github.com/dascandy

Userland/DevTools/Profiler/ProfileModel.cpp

@@ -105,7 +105,13 @@ GUI::Variant ProfileModel::data(const GUI::ModelIndex& index, GUI::ModelRole rol
             if (node->is_root()) {
                 return GUI::FileIconProvider::icon_for_executable(node->process().executable);
             }
-            if (node->address() >= 0xc0000000)
+            // FIXME: Use /proc for this
+#if ARCH(I386)
+            FlatPtr kernel_base = 0xc0000000;
+#else
+            FlatPtr kernel_base = 0x2000000000;
+#endif
+            if (node->address() >= kernel_base)
                 return m_kernel_frame_icon;
             return m_user_frame_icon;
         }