Add separate `simulator` flag for iOS build, change main library to `xcframework`.

Build and export iOS Mono libs as `.xcframework`s, for Apple Silicon iOS simulator support.

misc/dist/ios_xcode/godot_ios.xcodeproj/project.pbxproj

@@ -8,7 +8,7 @@
 
 /* Begin PBXBuildFile section */
 		1F1575721F582BE20003B888 /* dylibs in Resources */ = {isa = PBXBuildFile; fileRef = 1F1575711F582BE20003B888 /* dylibs */; };
-		DEADBEEF2F582BE20003B888 /* $binary.a in Frameworks */ = {isa = PBXBuildFile; fileRef = DEADBEEF1F582BE20003B888 /* $binary.a */; };
+		DEADBEEF2F582BE20003B888 /* $binary.xcframework in Frameworks */ = {isa = PBXBuildFile; fileRef = DEADBEEF1F582BE20003B888 /* $binary.xcframework */; };
 		$modules_buildfile
 		1FF8DBB11FBA9DE1009DE660 /* dummy.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 1FF8DBB01FBA9DE1009DE660 /* dummy.cpp */; };
 		D07CD44E1C5D589C00B7FB28 /* Images.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = D07CD44D1C5D589C00B7FB28 /* Images.xcassets */; };
@@ -33,7 +33,7 @@
 
 /* Begin PBXFileReference section */
 		1F1575711F582BE20003B888 /* dylibs */ = {isa = PBXFileReference; lastKnownFileType = folder; name = dylibs; path = "$binary/dylibs"; sourceTree = "<group>"; };
-		DEADBEEF1F582BE20003B888 /* $binary.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; name = godot; path = "$binary.a"; sourceTree = "<group>"; };
+		DEADBEEF1F582BE20003B888 /* $binary.xcframework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.xcframework; name = godot; path = "$binary.xcframework"; sourceTree = "<group>"; };
 		$modules_fileref
 		1FF4C1881F584E6300A41E41 /* $binary.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = "$binary.entitlements"; sourceTree = "<group>"; };
 		1FF8DBB01FBA9DE1009DE660 /* dummy.cpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; path = dummy.cpp; sourceTree = "<group>"; };
@@ -52,7 +52,7 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				DEADBEEF2F582BE20003B888 /* $binary.a */,
+				DEADBEEF2F582BE20003B888 /* $binary.xcframework */,
 				$modules_buildphase
 				$additional_pbx_frameworks_build
 			);
@@ -84,7 +84,7 @@
 		D0BCFE3618AEBDA2004A7AAE /* Frameworks */ = {
 			isa = PBXGroup;
 			children = (
-				DEADBEEF1F582BE20003B888 /* $binary.a */,
+				DEADBEEF1F582BE20003B888 /* $binary.xcframework */,
 				$modules_buildgrp
 				$additional_pbx_frameworks_refs
 			);

misc/dist/ios_xcode/libgodot.iphone.debug.xcframework/Info.plist

@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>AvailableLibraries</key>
+	<array>
+		<dict>
+			<key>LibraryIdentifier</key>
+			<string>ios-arm64</string>
+			<key>LibraryPath</key>
+			<string>libgodot.a</string>
+			<key>SupportedArchitectures</key>
+			<array>
+				<string>arm64</string>
+			</array>
+			<key>SupportedPlatform</key>
+			<string>ios</string>
+		</dict>
+		<dict>
+			<key>LibraryIdentifier</key>
+			<string>ios-arm64_x86_64-simulator</string>
+			<key>LibraryPath</key>
+			<string>libgodot.a</string>
+			<key>SupportedArchitectures</key>
+			<array>
+				<string>arm64</string>
+				<string>x86_64</string>
+			</array>
+			<key>SupportedPlatform</key>
+			<string>ios</string>
+			<key>SupportedPlatformVariant</key>
+			<string>simulator</string>
+		</dict>
+	</array>
+	<key>CFBundlePackageType</key>
+	<string>XFWK</string>
+	<key>XCFrameworkFormatVersion</key>
+	<string>1.0</string>
+</dict>
+</plist>

misc/dist/ios_xcode/libgodot.iphone.debug.xcframework/ios-arm64/empty

@@ -0,0 +1 @@
+Dummy file to make dylibs folder exported

misc/dist/ios_xcode/libgodot.iphone.debug.xcframework/ios-arm64_x86_64-simulator/empty

@@ -0,0 +1 @@
+Dummy file to make dylibs folder exported

misc/dist/ios_xcode/libgodot.iphone.release.xcframework/Info.plist

@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>AvailableLibraries</key>
+	<array>
+		<dict>
+			<key>LibraryIdentifier</key>
+			<string>ios-arm64</string>
+			<key>LibraryPath</key>
+			<string>libgodot.a</string>
+			<key>SupportedArchitectures</key>
+			<array>
+				<string>arm64</string>
+			</array>
+			<key>SupportedPlatform</key>
+			<string>ios</string>
+		</dict>
+		<dict>
+			<key>LibraryIdentifier</key>
+			<string>ios-arm64_x86_64-simulator</string>
+			<key>LibraryPath</key>
+			<string>libgodot.a</string>
+			<key>SupportedArchitectures</key>
+			<array>
+				<string>arm64</string>
+				<string>x86_64</string>
+			</array>
+			<key>SupportedPlatform</key>
+			<string>ios</string>
+			<key>SupportedPlatformVariant</key>
+			<string>simulator</string>
+		</dict>
+	</array>
+	<key>CFBundlePackageType</key>
+	<string>XFWK</string>
+	<key>XCFrameworkFormatVersion</key>
+	<string>1.0</string>
+</dict>
+</plist>

misc/dist/ios_xcode/libgodot.iphone.release.xcframework/ios-arm64/empty

@@ -0,0 +1 @@
+Dummy file to make dylibs folder exported

misc/dist/ios_xcode/libgodot.iphone.release.xcframework/ios-arm64_x86_64-simulator/empty

@@ -0,0 +1 @@
+Dummy file to make dylibs folder exported

misc/dist/iphone-mono-libs/libmono-native.xcframework/Info.plist

@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>AvailableLibraries</key>
+	<array>
+		<dict>
+			<key>LibraryIdentifier</key>
+			<string>ios-arm64</string>
+			<key>LibraryPath</key>
+			<string>libmono-native.a</string>
+			<key>SupportedArchitectures</key>
+			<array>
+				<string>arm64</string>
+			</array>
+			<key>SupportedPlatform</key>
+			<string>ios</string>
+		</dict>
+		<dict>
+			<key>LibraryIdentifier</key>
+			<string>ios-arm64_x86_64-simulator</string>
+			<key>LibraryPath</key>
+			<string>libmono-native.a</string>
+			<key>SupportedArchitectures</key>
+			<array>
+				<string>arm64</string>
+				<string>x86_64</string>
+			</array>
+			<key>SupportedPlatform</key>
+			<string>ios</string>
+			<key>SupportedPlatformVariant</key>
+			<string>simulator</string>
+		</dict>
+	</array>
+	<key>CFBundlePackageType</key>
+	<string>XFWK</string>
+	<key>XCFrameworkFormatVersion</key>
+	<string>1.0</string>
+</dict>
+</plist>

misc/dist/iphone-mono-libs/libmono-native.xcframework/ios-arm64/empty

@@ -0,0 +1 @@
+Dummy file to make dylibs folder exported

misc/dist/iphone-mono-libs/libmono-native.xcframework/ios-arm64_x86_64-simulator/empty

@@ -0,0 +1 @@
+Dummy file to make dylibs folder exported

misc/dist/iphone-mono-libs/libmono-profiler-log.xcframework/Info.plist

@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>AvailableLibraries</key>
+	<array>
+		<dict>
+			<key>LibraryIdentifier</key>
+			<string>ios-arm64</string>
+			<key>LibraryPath</key>
+			<string>libmono-profiler-log.a</string>
+			<key>SupportedArchitectures</key>
+			<array>
+				<string>arm64</string>
+			</array>
+			<key>SupportedPlatform</key>
+			<string>ios</string>
+		</dict>
+		<dict>
+			<key>LibraryIdentifier</key>
+			<string>ios-arm64_x86_64-simulator</string>
+			<key>LibraryPath</key>
+			<string>libmono-profiler-log.a</string>
+			<key>SupportedArchitectures</key>
+			<array>
+				<string>arm64</string>
+				<string>x86_64</string>
+			</array>
+			<key>SupportedPlatform</key>
+			<string>ios</string>
+			<key>SupportedPlatformVariant</key>
+			<string>simulator</string>
+		</dict>
+	</array>
+	<key>CFBundlePackageType</key>
+	<string>XFWK</string>
+	<key>XCFrameworkFormatVersion</key>
+	<string>1.0</string>
+</dict>
+</plist>

misc/dist/iphone-mono-libs/libmono-profiler-log.xcframework/ios-arm64/empty

@@ -0,0 +1 @@
+Dummy file to make dylibs folder exported

misc/dist/iphone-mono-libs/libmono-profiler-log.xcframework/ios-arm64_x86_64-simulator/empty

@@ -0,0 +1 @@
+Dummy file to make dylibs folder exported

misc/dist/iphone-mono-libs/libmonosgen-2.0.xcframework/Info.plist

@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>AvailableLibraries</key>
+	<array>
+		<dict>
+			<key>LibraryIdentifier</key>
+			<string>ios-arm64</string>
+			<key>LibraryPath</key>
+			<string>libmonosgen.a</string>
+			<key>SupportedArchitectures</key>
+			<array>
+				<string>arm64</string>
+			</array>
+			<key>SupportedPlatform</key>
+			<string>ios</string>
+		</dict>
+		<dict>
+			<key>LibraryIdentifier</key>
+			<string>ios-arm64_x86_64-simulator</string>
+			<key>LibraryPath</key>
+			<string>libmonosgen.a</string>
+			<key>SupportedArchitectures</key>
+			<array>
+				<string>arm64</string>
+				<string>x86_64</string>
+			</array>
+			<key>SupportedPlatform</key>
+			<string>ios</string>
+			<key>SupportedPlatformVariant</key>
+			<string>simulator</string>
+		</dict>
+	</array>
+	<key>CFBundlePackageType</key>
+	<string>XFWK</string>
+	<key>XCFrameworkFormatVersion</key>
+	<string>1.0</string>
+</dict>
+</plist>

misc/dist/iphone-mono-libs/libmonosgen-2.0.xcframework/ios-arm64/empty

@@ -0,0 +1 @@
+Dummy file to make dylibs folder exported

misc/dist/iphone-mono-libs/libmonosgen-2.0.xcframework/ios-arm64_x86_64-simulator/empty

@@ -0,0 +1 @@
+Dummy file to make dylibs folder exported

modules/mono/build_scripts/mono_configure.py

@@ -86,7 +86,7 @@ def configure(env, env_mono):
     is_android = env["platform"] == "android"
     is_javascript = env["platform"] == "javascript"
     is_ios = env["platform"] == "iphone"
-    is_ios_sim = is_ios and env["arch"] in ["x86", "x86_64"]
+    is_ios_sim = is_ios and env["ios_simulator"]
 
     tools_enabled = env["tools"]
     mono_static = env["mono_static"]
@@ -271,8 +271,19 @@ def configure(env, env_mono):
                         arch = env["arch"]
 
                         def copy_mono_lib(libname_wo_ext):
+                            if is_ios_sim:
                                 copy_file(
-                                mono_lib_path, "#bin", libname_wo_ext + ".a", "%s.iphone.%s.a" % (libname_wo_ext, arch)
+                                    mono_lib_path,
+                                    "#bin",
+                                    libname_wo_ext + ".a",
+                                    "%s.iphone.%s.simulator.a" % (libname_wo_ext, arch),
+                                )
+                            else:
+                                copy_file(
+                                    mono_lib_path,
+                                    "#bin",
+                                    libname_wo_ext + ".a",
+                                    "%s.iphone.%s.a" % (libname_wo_ext, arch),
                                 )
 
                         # Copy Mono libraries to the output folder. These are meant to be bundled with

modules/mono/editor/GodotTools/GodotTools/Export/AotBuilder.cs

@@ -340,9 +340,14 @@ MONO_AOT_MODE_LAST = 1000,
             string MonoLibFromTemplate(string libFileName) =>
                 Path.Combine(Internal.FullTemplatesDir, "iphone-mono-libs", MonoLibFile(libFileName));
 
-            exporter.AddIosProjectStaticLib(MonoLibFromTemplate("libmonosgen-2.0"));
+            string MonoFrameworkFile(string frameworkFileName) => frameworkFileName + ".xcframework";
 
-            exporter.AddIosProjectStaticLib(MonoLibFromTemplate("libmono-native"));
+            string MonoFrameworkFromTemplate(string frameworkFileName) =>
+                Path.Combine(Internal.FullTemplatesDir, "iphone-mono-libs", MonoFrameworkFile(frameworkFileName));
+
+            exporter.AddIosProjectStaticLib(MonoFrameworkFromTemplate("libmonosgen-2.0"));
+
+            exporter.AddIosProjectStaticLib(MonoFrameworkFromTemplate("libmono-native"));
 
             if (aotOpts.UseInterpreter)
             {
@@ -366,7 +371,7 @@ MONO_AOT_MODE_LAST = 1000,
             // functions in System.Native/libmono-native). Instead, we should use cecil to search for
             // DllImports in assemblies and pass them to 'ld' as '-u/--undefined {pinvoke_symbol}'.
             exporter.AddIosLinkerFlags("-rdynamic");
-            exporter.AddIosLinkerFlags($"-force_load \"$(SRCROOT)/{MonoLibFile("libmono-native")}\"");
+            exporter.AddIosLinkerFlags($"-force_load \"$(SRCROOT)/{MonoFrameworkFile("libmono-native")}\"");
         }
 
         /// Converts an assembly name to a valid symbol name in the same way the AOT compiler does

platform/iphone/detect.py

@@ -33,6 +33,7 @@ def get_opts():
             "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain",
         ),
         ("IPHONESDK", "Path to the iPhone SDK", ""),
+        BoolVariable("ios_simulator", "Build for iOS Simulator", False),
         BoolVariable("ios_exceptions", "Enable exceptions", False),
         ("ios_triple", "Triple for ios toolchain", ""),
     ]
@@ -106,26 +107,35 @@ def configure(env):
 
     ## Compile flags
 
-    if env["arch"] == "x86" or env["arch"] == "x86_64":
+    if env["ios_simulator"]:
         detect_darwin_sdk_path("iphonesimulator", env)
+        env.Append(CCFLAGS=["-mios-simulator-version-min=10.0"])
+        env.Append(LINKFLAGS=["-mios-simulator-version-min=10.0"])
+        env.extra_suffix = ".simulator" + env.extra_suffix
+    else:
+        detect_darwin_sdk_path("iphone", env)
+        env.Append(CCFLAGS=["-miphoneos-version-min=10.0"])
+        env.Append(LINKFLAGS=["-miphoneos-version-min=10.0"])
+
+    if env["arch"] == "x86" or env["arch"] == "x86_64":
         env["ENV"]["MACOSX_DEPLOYMENT_TARGET"] = "10.9"
         arch_flag = "i386" if env["arch"] == "x86" else env["arch"]
         env.Append(
             CCFLAGS=(
                 "-arch "
                 + arch_flag
-                + " -fobjc-arc -fobjc-abi-version=2 -fobjc-legacy-dispatch -fmessage-length=0 -fpascal-strings -fblocks -fasm-blocks -isysroot $IPHONESDK -mios-simulator-version-min=10.0"
+                + " -fobjc-arc -fobjc-abi-version=2 -fobjc-legacy-dispatch -fmessage-length=0 -fpascal-strings -fblocks -fasm-blocks -isysroot $IPHONESDK"
             ).split()
         )
     elif env["arch"] == "arm":
         detect_darwin_sdk_path("iphone", env)
         env.Append(
-            CCFLAGS='-fobjc-arc -arch armv7 -fmessage-length=0 -fno-strict-aliasing -fdiagnostics-print-source-range-info -fdiagnostics-show-category=id -fdiagnostics-parseable-fixits -fpascal-strings -fblocks -isysroot $IPHONESDK -fvisibility=hidden -mthumb "-DIBOutlet=__attribute__((iboutlet))" "-DIBOutletCollection(ClassName)=__attribute__((iboutletcollection(ClassName)))" "-DIBAction=void)__attribute__((ibaction)" -miphoneos-version-min=10.0 -MMD -MT dependencies'.split()
+            CCFLAGS='-fobjc-arc -arch armv7 -fmessage-length=0 -fno-strict-aliasing -fdiagnostics-print-source-range-info -fdiagnostics-show-category=id -fdiagnostics-parseable-fixits -fpascal-strings -fblocks -isysroot $IPHONESDK -fvisibility=hidden -mthumb "-DIBOutlet=__attribute__((iboutlet))" "-DIBOutletCollection(ClassName)=__attribute__((iboutletcollection(ClassName)))" "-DIBAction=void)__attribute__((ibaction)" -MMD -MT dependencies'.split()
         )
     elif env["arch"] == "arm64":
         detect_darwin_sdk_path("iphone", env)
         env.Append(
-            CCFLAGS="-fobjc-arc -arch arm64 -fmessage-length=0 -fno-strict-aliasing -fdiagnostics-print-source-range-info -fdiagnostics-show-category=id -fdiagnostics-parseable-fixits -fpascal-strings -fblocks -fvisibility=hidden -MMD -MT dependencies -miphoneos-version-min=10.0 -isysroot $IPHONESDK".split()
+            CCFLAGS="-fobjc-arc -arch arm64 -fmessage-length=0 -fno-strict-aliasing -fdiagnostics-print-source-range-info -fdiagnostics-show-category=id -fdiagnostics-parseable-fixits -fpascal-strings -fblocks -fvisibility=hidden -MMD -MT dependencies -isysroot $IPHONESDK".split()
         )
         env.Append(CPPDEFINES=["NEED_LONG_INT"])
         env.Append(CPPDEFINES=["LIBYUV_DISABLE_NEON"])
@@ -148,7 +158,6 @@ def configure(env):
             LINKFLAGS=[
                 "-arch",
                 arch_flag,
-                "-mios-simulator-version-min=10.0",
                 "-isysroot",
                 "$IPHONESDK",
                 "-Xlinker",
@@ -159,9 +168,9 @@ def configure(env):
             ]
         )
     elif env["arch"] == "arm":
-        env.Append(LINKFLAGS=["-arch", "armv7", "-Wl,-dead_strip", "-miphoneos-version-min=10.0"])
+        env.Append(LINKFLAGS=["-arch", "armv7", "-Wl,-dead_strip"])
     if env["arch"] == "arm64":
-        env.Append(LINKFLAGS=["-arch", "arm64", "-Wl,-dead_strip", "-miphoneos-version-min=10.0"])
+        env.Append(LINKFLAGS=["-arch", "arm64", "-Wl,-dead_strip"])
 
     env.Append(
         LINKFLAGS=[

platform/iphone/export/export.cpp

@@ -1504,9 +1504,9 @@ Error EditorExportPlatformIOS::export_project(const Ref<EditorExportPreset> &p_p
 		return ERR_SKIP;
 	}
 
-	String library_to_use = "libgodot.iphone." + String(p_debug ? "debug" : "release") + ".fat.a";
+	String library_to_use = "libgodot.iphone." + String(p_debug ? "debug" : "release") + ".xcframework";
 
-	print_line("Static library: " + library_to_use);
+	print_line("Static framework: " + library_to_use);
 	String pkg_name;
 	if (p_preset->get("application/name") != "") {
 		pkg_name = p_preset->get("application/name"); // app_name
@@ -1592,7 +1592,7 @@ Error EditorExportPlatformIOS::export_project(const Ref<EditorExportPreset> &p_p
 		if (files_to_parse.has(file)) {
 			_fix_config_file(p_preset, data, config_data, p_debug);
 		} else if (file.begins_with("libgodot.iphone")) {
-			if (file != library_to_use) {
+			if (!file.begins_with(library_to_use) || file.ends_with(String("/empty"))) {
 				ret = unzGoToNextFile(src_pkg_zip);
 				continue; //ignore!
 			}
@@ -1600,7 +1600,7 @@ Error EditorExportPlatformIOS::export_project(const Ref<EditorExportPreset> &p_p
 #if defined(OSX_ENABLED) || defined(X11_ENABLED)
 			is_execute = true;
 #endif
-			file = "godot_ios.a";
+			file = file.replace(library_to_use, binary_name + ".xcframework");
 		}
 
 		if (file == project_file) {
@@ -1670,7 +1670,9 @@ Error EditorExportPlatformIOS::export_project(const Ref<EditorExportPreset> &p_p
 		for (int j = 0; j < project_static_libs.size(); j++) {
 			const String &static_lib_path = project_static_libs[j];
 			String dest_lib_file_path = dest_dir + static_lib_path.get_file();
-			Error lib_copy_err = tmp_app_path->copy(static_lib_path, dest_lib_file_path);
+
+			bool dir_exists = tmp_app_path->dir_exists(static_lib_path);
+			Error lib_copy_err = dir_exists ? tmp_app_path->copy_dir(static_lib_path, dest_lib_file_path) : tmp_app_path->copy(static_lib_path, dest_lib_file_path);
 			if (lib_copy_err != OK) {
 				ERR_PRINTS("Can't copy '" + static_lib_path + "'.");
 				memdelete(tmp_app_path);