debug: Add logging to diagnose python_blocks_cleanup symbol lookup

thiagoralves · claude · thiagoralves · commit 44fc5acf2585 · 2026-01-28T13:57:19.000-05:00
Co-Authored-By: Claude Opus 4.5 &lt;noreply@anthropic.com&gt;
diff --git a/core/src/plc_app/plc_state_manager.c b/core/src/plc_app/plc_state_manager.c
@@ -215,8 +215,13 @@ int unload_plc_program(PluginManager *pm)
             plugin_manager_get_symbol(pm, "python_blocks_cleanup");
         if (python_cleanup)
         {
+            log_info("Calling python_blocks_cleanup()");
             python_cleanup();
         }
+        else
+        {
+            log_info("python_blocks_cleanup symbol not found (no Python FBs used)");
+        }
 
         // Destroy the plugin manager
         plugin_manager_destroy(pm);

Original file line number	Diff line number	Diff line change
`@@ -215,8 +215,13 @@ int unload_plc_program(PluginManager *pm)`
`215`	`215`	`plugin_manager_get_symbol(pm, "python_blocks_cleanup");`
`216`	`216`	`if (python_cleanup)`
`217`	`217`	`{`
	`218`	`+ log_info("Calling python_blocks_cleanup()");`
`218`	`219`	`python_cleanup();`
`219`	`220`	`}`
	`221`	`+ else`
	`222`	`+ {`
	`223`	`+ log_info("python_blocks_cleanup symbol not found (no Python FBs used)");`
	`224`	`+ }`
`220`	`225`
`221`	`226`	`// Destroy the plugin manager`
`222`	`227`	`plugin_manager_destroy(pm);`