Use exported memory when building a MAIN_MODULE. NFC

src/library_dylink.js

@@ -233,8 +233,6 @@ var LibraryDylink = {
 #endif
         } else if (typeof value == {{{ POINTER_JS_TYPE }}}) {
           GOT[symName].value = value;
-        } else {
-          err(`unhandled export type for '${symName}': ${typeof value}`);
         }
 #if DYLINK_DEBUG == 2
         dbg(`updateGOT:  after: ${symName} : ${GOT[symName].value} (${value})`);
@@ -267,9 +265,8 @@ var LibraryDylink = {
         continue;
       }
 #endif
-      if (typeof value == 'object') {
-        // a breaking change in the wasm spec, globals are now objects
-        // https://github.com/WebAssembly/mutable-global/issues/1
+      if (typeof value == 'object' && value.value) {
+        // For Wasm globals, extract the inner value.
         value = value.value;
       }
       if (typeof value == {{{ POINTER_JS_TYPE }}}) {
@@ -315,8 +312,6 @@ var LibraryDylink = {
         } else if (typeof value == 'bigint') {
           entry.value = value;
 #endif
-        } else {
-          throw new Error(`bad export type for '${symName}': ${typeof value}`);
         }
       }
     }

src/preamble.js

@@ -154,7 +154,6 @@ assert(typeof Int32Array != 'undefined' && typeof Float64Array !== 'undefined' &
 #endif
 
 #if IMPORTED_MEMORY
-// In non-standalone/normal mode, we create the memory here.
 #include "runtime_init_memory.js"
 #elif ASSERTIONS
 // If memory is defined in wasm, the user can't provide it, or set INITIAL_MEMORY

test/other/metadce/test_metadce_hello_dylink.exports

@@ -6,4 +6,5 @@ dynCall_jiji
 emscripten_stack_get_current
 main
 malloc
+memory
 setThrew

test/other/metadce/test_metadce_hello_dylink.gzsize

@@ -1 +1 @@
-6306
+6216

test/other/metadce/test_metadce_hello_dylink.imports

@@ -5,5 +5,4 @@ env.__stack_pointer
 env.__table_base
 env._emscripten_memcpy_js
 env.emscripten_resize_heap
-env.memory
 wasi_snapshot_preview1.fd_write

test/other/metadce/test_metadce_hello_dylink.jssize

@@ -1 +1 @@
-13895
+13655

test/other/metadce/test_metadce_hello_dylink.sent

@@ -6,4 +6,3 @@ __table_base
 _emscripten_memcpy_js
 emscripten_resize_heap
 fd_write
-memory

tools/link.py

@@ -1408,7 +1408,7 @@ def phase_linker_setup(options, state, newargs):
       'removeRunDependency',
     ]
 
-  if settings.SHARED_MEMORY or settings.RELOCATABLE or settings.ASYNCIFY_LAZY_LOAD_CODE:
+  if settings.SHARED_MEMORY or settings.SIDE_MODULE or settings.ASYNCIFY_LAZY_LOAD_CODE:
     settings.IMPORTED_MEMORY = 1
 
   set_initial_memory()