fix dlopen registered module

Author: qianxichen233

src/lind-boot/src/lind_wasmtime/execute.rs

@@ -885,10 +885,17 @@ fn load_library_module(
                 }
             };
 
-            // Skip libraries that are already instantiated (checked by inode).
+            // Skip libraries already instantiated via dlopen (tracked by inode).
             if main_module.check_library_loaded(dep_inode).is_some() {
                 continue;
             }
+            // Also skip libraries instantiated at boot time via --preload
+            // (tracked by wasm name in named_module_instances, not in the SymbolTable).
+            if let Some(wasm_name) = dep_module.name() {
+                if main_module.is_named_instance_registered(wasm_name) {
+                    continue;
+                }
+            }
 
             let ret = link_library_into(
                 &mut main_module,

src/wasmtime/crates/wasmtime/src/runtime/func.rs

@@ -2117,6 +2117,13 @@ impl<T> Caller<'_, T> {
         self.store.check_library_loaded(inode)
     }
 
+    /// Return true if a WASM module with the given intrinsic name is already instantiated.
+    /// Covers both preloaded libraries (module_with_preload) and dlopen'd libraries
+    /// (module_with_caller), since both call register_named_instance.
+    pub fn is_named_instance_registered(&self, name: &str) -> bool {
+        self.store.is_named_instance_registered(name)
+    }
+
     pub fn get_asyncify_start_unwind(&mut self) -> Result<TypedFunc<i32, ()>, ()> {
         if let Some(asyncify_start_unwind_extern) = self.get_export("asyncify_start_unwind") {
             match asyncify_start_unwind_extern {

src/wasmtime/crates/wasmtime/src/runtime/store.rs

@@ -1762,6 +1762,12 @@ impl<'a, T> StoreContextMut<'a, T> {
         self.0.named_module_instances.push((name, id));
     }
 
+    // Return true if a WASM module with the given intrinsic name has already been
+    // instantiated and registered (covers both preloaded and dlopen'd libraries).
+    pub fn is_named_instance_registered(&self, name: &str) -> bool {
+        self.0.named_module_instances.iter().any(|(n, _)| n == name)
+    }
+
     // get and set library symbol table, used for cloning symbol table across fork/thread
     #[allow(missing_docs)]
     pub fn get_library_symbol_table(&self) -> &SymbolTable {