[browser] testing

eng/build.sh

@@ -561,6 +561,12 @@ initDistroRid "$os" "$arch" "$crossBuild"
 # The later changes are ignored when using the cache.
 export DOTNETSDK_ALLOW_TARGETING_PACK_CACHING=0
 
+if [[ "$arch" == "wasm" ]]; then
+    # LLVM + MSBuild can consume a lot of memory, so we set the GC limits to be more aggressive.
+    export DOTNET_GCHighMemPercent="10"
+    export DOTNET_GCHeapHardLimitPercent="20"
+fi
+
 # URL-encode space (%20) to avoid quoting issues until the msbuild call in /eng/common/tools.sh.
 # In *proj files (XML docs), URL-encoded string are rendered in their decoded form.
 cmakeargs="${cmakeargs// /%20}"

eng/testing/tests.browser.targets

@@ -7,6 +7,8 @@
   <!-- We need to set this in order to get extensibility on xunit category traits and other arguments we pass down to xunit via MSBuild properties -->
   <PropertyGroup>
     <IsBrowserWasmProject Condition="'$(IsBrowserWasmProject)' == ''">true</IsBrowserWasmProject>
+    <WasmProfilers>browser</WasmProfilers>
+    <WasmBuildNative>true</WasmBuildNative>
 
     <!-- set this when provisioning emsdk on CI -->
     <EMSDK_PATH Condition="'$(EMSDK_PATH)' == '' and '$(ContinuousIntegrationBuild)' == 'true' and '$(MonoProjectRoot)' != ''">$([MSBuild]::NormalizeDirectory($(BrowserProjectRoot), 'emsdk'))</EMSDK_PATH>

src/mono/browser/browser.proj

@@ -340,6 +340,7 @@
       { "identity": "WasmSingleFileBundle",         "defaultValueInRuntimePack": "$(WasmSingleFileBundle)" },
       { "identity": "WasmEnableSIMD",               "defaultValueInRuntimePack": "$(WasmEnableSIMD)" },
       { "identity": "WasmEnableExceptionHandling",  "defaultValueInRuntimePack": "$(WasmEnableExceptionHandling)" },
+      { "identity": "WasmProfilers",                "defaultValueInRuntimePack": "$(WasmProfilers)" },
       { "identity": "EmccMaximumHeapSize",          "defaultValueInRuntimePack": "$(EmccMaximumHeapSize)" }
     ]
   }

src/mono/browser/runtime/driver.c

@@ -534,17 +534,16 @@ EMSCRIPTEN_KEEPALIVE const char * mono_wasm_method_get_name (MonoMethod *method)
 	return res;
 }
 
-EMSCRIPTEN_KEEPALIVE const char * mono_wasm_method_get_name_ex (MonoMethod *method) {
-	const char *res;
+EMSCRIPTEN_KEEPALIVE char * mono_wasm_method_get_name_ex (MonoMethod *method) {
+	char *res;
 	MONO_ENTER_GC_UNSAFE;
-	res = mono_method_get_name (method);
+	const char *method_name = mono_method_get_name (method);
 	// starts with .ctor or .cctor
 	if (mono_method_get_flags (method, NULL) & 0x0800 /* METHOD_ATTRIBUTE_SPECIAL_NAME */ && strlen (res) < 7) {
-		char *res_ex = (char *) malloc (128);
-		snprintf (res_ex, 128,"%s.%s", mono_class_get_name (mono_method_get_class (method)), res);
-		res = res_ex;
+		res = (char *) malloc (128);
+		snprintf (res, 128,"%s.%s", mono_class_get_name (mono_method_get_class (method)), method_name);
 	} else {
-		res = strdup (res);
+		res = strdup (method_name);
 	}
 	MONO_EXIT_GC_UNSAFE;
 	return res;