[dylink] Enable dylink tests in 4gb+ mode. NFC (#20900)

Author: sbc100

test/common.py

@@ -660,10 +660,6 @@ def check_dylink(self):
       self.skipTest('no dynamic linking support in wasm2js yet')
     if '-fsanitize=undefined' in self.emcc_args:
       self.skipTest('no dynamic linking support in UBSan yet')
-    # Dynamic linking requires IMPORTED_MEMORY which depends on the JS API
-    # for creating 64-bit memories.
-    if self.get_setting('GLOBAL_BASE') == '4gb':
-      self.skipTest('no support for IMPORTED_MEMORY over 4gb yet')
 
   def require_v8(self):
     if not config.V8_ENGINE or config.V8_ENGINE not in config.JS_ENGINES:

test/test_core.py

@@ -3400,6 +3400,7 @@ def test_dlfcn_varargs(self):
   @needs_dylink
   @no_sanitize('contains ODR violation')
   @no_2gb('output is sensitive to absolute data layout')
+  @no_4gb('output is sensitive to absolute data layout')
   def test_dlfcn_alignment_and_zeroing(self):
     self.set_setting('INITIAL_MEMORY', '16mb')
     create_file('liblib.c', r'''
@@ -4390,21 +4391,6 @@ def test_dylink_static_funcpointer_float(self):
       expected='hello 1: 56.779999\ngot: 1\nhello 1: 12.340000\n',
       header='typedef float (*floatfunc)(float);', force_c=True)
 
-  @needs_dylink
-  def test_missing_signatures(self):
-    create_file('test_sig.c', r'''#include <emscripten.h>
-                                       int main() {
-                                         return 0 == ( (long)&emscripten_run_script_string +
-                                                       (long)&emscripten_run_script );
-                                       }''')
-    self.set_setting('MAIN_MODULE', 1)
-    # also test main module with 4GB of memory. we need to emit a "maximum"
-    # clause then, even though 4GB is the maximum; see
-    # https://github.com/emscripten-core/emscripten/issues/14130
-    self.set_setting('ALLOW_MEMORY_GROWTH', '1')
-    self.set_setting('MAXIMUM_MEMORY', '4GB')
-    self.do_runf('test_sig.c', '')
-
   @needs_dylink
   def test_dylink_global_init(self):
     self.dylink_test(r'''

test/test_other.py

@@ -5282,6 +5282,15 @@ def test_syscall_no_filesystem(self):
   def test_dylink_no_filesystem(self):
     self.run_process([EMCC, test_file('hello_world.c'), '-sMAIN_MODULE=2', '-sNO_FILESYSTEM'])
 
+  def test_dylink_4gb_max(self):
+    # Test main module with 4GB of memory. we need to emit a "maximum"
+    # clause then, even though 4GB is the maximum; see
+    # https://github.com/emscripten-core/emscripten/issues/14130
+    self.set_setting('MAIN_MODULE', '1')
+    self.set_setting('ALLOW_MEMORY_GROWTH', '1')
+    self.set_setting('MAXIMUM_MEMORY', '4GB')
+    self.do_runf(test_file('hello_world.c'))
+
   def test_dashS(self):
     self.run_process([EMCC, test_file('hello_world.c'), '-S'])
     self.assertExists('hello_world.s')