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node_modules/react-native/ReactAndroid/cmake-utils/ReactNative-application.cmake

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+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
+
+# This CMake file takes care of creating everything you need to build and link
+# your C++ source code in a React Native Application for Android.
+# You just need to call `project(<my_project_name>)` and import this file.
+# Specifically this file will:
+# - Take care of creating a shared library called as your project
+# - Take care of setting the correct compile options
+# - Include all the pre-built libraries in your build graph
+# - Link your library against those prebuilt libraries so you can access JSI, Fabric, etc.
+# - Link your library against any autolinked library.
+# - Make sure ccache is used as part of the compilation process, if you have it installed.
+
+cmake_minimum_required(VERSION 3.13)
+set(CMAKE_VERBOSE_MAKEFILE on)
+
+include(${CMAKE_CURRENT_LIST_DIR}/folly-flags.cmake)
+
+# We configured the REACT_COMMON_DIR variable as it's commonly used to reference
+# shared C++ code in other targets.
+set(REACT_COMMON_DIR ${REACT_ANDROID_DIR}/../ReactCommon)
+include(${REACT_COMMON_DIR}/cmake-utils/react-native-flags.cmake)
+
+# If you have ccache installed, we're going to honor it.
+find_program(CCACHE_FOUND ccache)
+if(CCACHE_FOUND)
+  set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)
+  set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK ccache)
+endif(CCACHE_FOUND)
+
+# If the user toolchain supports IPO, we enable it for the app build
+include(CheckIPOSupported)
+check_ipo_supported(RESULT IPO_SUPPORT)
+if (IPO_SUPPORT)
+  set(CMAKE_INTERPROCEDURAL_OPTIMIZATION TRUE)
+endif()
+
+set(BUILD_DIR ${PROJECT_BUILD_DIR})
+file(TO_CMAKE_PATH "${BUILD_DIR}" BUILD_DIR)
+file(TO_CMAKE_PATH "${REACT_ANDROID_DIR}" REACT_ANDROID_DIR)
+
+if (PROJECT_ROOT_DIR)
+# This empty `if` is just to silence a CMake warning and make sure the `PROJECT_ROOT_DIR`
+# variable is defined if user need to access it.
+endif ()
+
+file(GLOB override_cpp_SRC CONFIGURE_DEPENDS *.cpp)
+# We check if the user is providing a custom OnLoad.cpp file. If so, we pick that
+# for compilation. Otherwise we fallback to using the `default-app-setup/OnLoad.cpp` 
+# file instead.
+if(override_cpp_SRC)
+        file(GLOB input_SRC CONFIGURE_DEPENDS
+                *.cpp
+                ${BUILD_DIR}/generated/autolinking/src/main/jni/*.cpp)
+else()
+        file(GLOB input_SRC CONFIGURE_DEPENDS
+                ${REACT_ANDROID_DIR}/cmake-utils/default-app-setup/*.cpp
+                ${BUILD_DIR}/generated/autolinking/src/main/jni/*.cpp)
+endif()
+
+add_library(${CMAKE_PROJECT_NAME} SHARED ${input_SRC})
+
+target_include_directories(${CMAKE_PROJECT_NAME}
+        PUBLIC
+                ${CMAKE_CURRENT_SOURCE_DIR}
+                ${PROJECT_BUILD_DIR}/generated/autolinking/src/main/jni)
+
+target_compile_reactnative_options(${CMAKE_PROJECT_NAME} PRIVATE)
+
+# Prefab packages from React Native
+find_package(ReactAndroid REQUIRED CONFIG)
+add_library(jsi ALIAS ReactAndroid::jsi)
+add_library(reactnative ALIAS ReactAndroid::reactnative)
+
+find_package(fbjni REQUIRED CONFIG)
+add_library(fbjni ALIAS fbjni::fbjni)
+
+target_link_libraries(${CMAKE_PROJECT_NAME}
+        fbjni                               # via 3rd party prefab
+        jsi                                 # prefab ready
+        reactnative                         # prefab ready
+)
+
+# We use an interface target to propagate flags to all the generated targets
+# such as the folly flags or others.
+add_library(common_flags INTERFACE)
+target_compile_options(common_flags INTERFACE ${folly_FLAGS})
+
+# If project is on RN CLI v9, then we can use the following lines to link against the autolinked 3rd party libraries.
+if(EXISTS ${PROJECT_BUILD_DIR}/generated/autolinking/src/main/jni/Android-autolinking.cmake)
+        include(${PROJECT_BUILD_DIR}/generated/autolinking/src/main/jni/Android-autolinking.cmake)
+        target_link_libraries(${CMAKE_PROJECT_NAME} ${AUTOLINKED_LIBRARIES})
+        foreach(autolinked_library ${AUTOLINKED_LIBRARIES})
+            target_link_libraries(${autolinked_library} common_flags)
+        endforeach()
+endif()
+
+# If project is running codegen at the app level, we want to link and build the generated library.
+if(EXISTS ${PROJECT_BUILD_DIR}/generated/source/codegen/jni/CMakeLists.txt)
+        add_subdirectory(${PROJECT_BUILD_DIR}/generated/source/codegen/jni/ codegen_app_build)
+        get_property(APP_CODEGEN_TARGET DIRECTORY ${PROJECT_BUILD_DIR}/generated/source/codegen/jni/ PROPERTY BUILDSYSTEM_TARGETS)
+        target_link_libraries(${CMAKE_PROJECT_NAME} ${APP_CODEGEN_TARGET})
+        target_link_libraries(${APP_CODEGEN_TARGET} common_flags)
+
+        # We need to pass the generated header and module provider to the OnLoad.cpp file so
+        # local app modules can properly be linked.
+        string(REGEX REPLACE "react_codegen_" "" APP_CODEGEN_HEADER "${APP_CODEGEN_TARGET}")
+        target_compile_options(${CMAKE_PROJECT_NAME}
+                PRIVATE
+                -DREACT_NATIVE_APP_CODEGEN_HEADER="${APP_CODEGEN_HEADER}.h"
+                -DREACT_NATIVE_APP_COMPONENT_DESCRIPTORS_HEADER="react/renderer/components/${APP_CODEGEN_HEADER}/ComponentDescriptors.h"
+                -DREACT_NATIVE_APP_COMPONENT_REGISTRATION=${APP_CODEGEN_HEADER}_registerComponentDescriptorsFromCodegen
+                -DREACT_NATIVE_APP_MODULE_PROVIDER=${APP_CODEGEN_HEADER}_ModuleProvider
+        )
+endif()
+
+# We set REACTNATIVE_MERGED_SO so libraries/apps can selectively decide to depend on either libreactnative.so
+# or link against a old prefab target (this is needed for React Native 0.76 on).
+set(REACTNATIVE_MERGED_SO true)

node_modules/react-native/ReactAndroid/cmake-utils/default-app-setup/CMakeLists.txt

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+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
+
+# This CMake file is the default used by apps and is placed inside react-native
+# to encapsulate it from user space (so you won't need to touch C++/Cmake code at all on Android).
+#
+# If you wish to customize it (because you want to manually link a C++ library or pass a custom
+# compilation flag) you can:
+#
+# 1. Copy this CMake file inside the `android/app/src/main/jni` folder of your project
+# 2. Copy the OnLoad.cpp (in this same folder) file inside the same folder as above.
+# 3. Extend your `android/app/build.gradle` as follows
+#
+# android {
+#    // Other config here...
+#    externalNativeBuild {
+#        cmake {
+#            path "src/main/jni/CMakeLists.txt"
+#        }
+#    }
+# }
+
+cmake_minimum_required(VERSION 3.13)
+
+# Define the library name here.
+project(appmodules)
+
+# This file includes all the necessary to let you build your application with the New Architecture.
+include(${REACT_ANDROID_DIR}/cmake-utils/ReactNative-application.cmake)

node_modules/react-native/ReactAndroid/cmake-utils/default-app-setup/OnLoad.cpp

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+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+// This C++ file is part of the default configuration used by apps and is placed
+// inside react-native to encapsulate it from user space (so you won't need to
+// touch C++/Cmake code at all on Android).
+//
+// If you wish to customize it (because you want to manually link a C++ library
+// or pass a custom compilation flag) you can:
+//
+// 1. Copy this CMake file inside the `android/app/src/main/jni` folder of your
+// project
+// 2. Copy the OnLoad.cpp (in this same folder) file inside the same folder as
+// above.
+// 3. Extend your `android/app/build.gradle` as follows
+//
+// android {
+//    // Other config here...
+//    externalNativeBuild {
+//        cmake {
+//            path "src/main/jni/CMakeLists.txt"
+//        }
+//    }
+// }
+
+#include <DefaultComponentsRegistry.h>
+#include <DefaultTurboModuleManagerDelegate.h>
+#include <FBReactNativeSpec.h>
+#include <autolinking.h>
+#include <fbjni/fbjni.h>
+#include <react/renderer/componentregistry/ComponentDescriptorProviderRegistry.h>
+
+#ifdef REACT_NATIVE_APP_CODEGEN_HEADER
+#include REACT_NATIVE_APP_CODEGEN_HEADER
+#endif
+#ifdef REACT_NATIVE_APP_COMPONENT_DESCRIPTORS_HEADER
+#include REACT_NATIVE_APP_COMPONENT_DESCRIPTORS_HEADER
+#endif
+
+namespace facebook::react {
+
+void registerComponents(
+    std::shared_ptr<const ComponentDescriptorProviderRegistry> registry) {
+  // Custom Fabric Components go here. You can register custom
+  // components coming from your App or from 3rd party libraries here.
+  //
+  // providerRegistry->add(concreteComponentDescriptorProvider<
+  //        MyComponentDescriptor>());
+
+  // We link app local components if available
+#ifdef REACT_NATIVE_APP_COMPONENT_REGISTRATION
+  REACT_NATIVE_APP_COMPONENT_REGISTRATION(registry);
+#endif
+
+  // And we fallback to the components autolinked
+  autolinking_registerProviders(registry);
+}
+
+std::shared_ptr<TurboModule> cxxModuleProvider(
+    const std::string& name,
+    const std::shared_ptr<CallInvoker>& jsInvoker) {
+  // Here you can provide your CXX Turbo Modules coming from
+  // either your application or from external libraries. The approach to follow
+  // is similar to the following (for a module called `NativeCxxModuleExample`):
+  //
+  // if (name == NativeCxxModuleExample::kModuleName) {
+  //   return std::make_shared<NativeCxxModuleExample>(jsInvoker);
+  // }
+
+  // And we fallback to the CXX module providers autolinked
+  return autolinking_cxxModuleProvider(name, jsInvoker);
+
+  return nullptr;
+}
+
+std::shared_ptr<TurboModule> javaModuleProvider(
+    const std::string& name,
+    const JavaTurboModule::InitParams& params) {
+  // Here you can provide your own module provider for TurboModules coming from
+  // either your application or from external libraries. The approach to follow
+  // is similar to the following (for a library called `samplelibrary`):
+  //
+  // auto module = samplelibrary_ModuleProvider(name, params);
+  // if (module != nullptr) {
+  //    return module;
+  // }
+  // return rncore_ModuleProvider(name, params);
+
+  // We link app local modules if available
+#ifdef REACT_NATIVE_APP_MODULE_PROVIDER
+  auto module = REACT_NATIVE_APP_MODULE_PROVIDER(name, params);
+  if (module != nullptr) {
+    return module;
+  }
+#endif
+
+  // We first try to look up core modules
+  if (auto module = FBReactNativeSpec_ModuleProvider(name, params)) {
+    return module;
+  }
+
+  // And we fallback to the module providers autolinked
+  if (auto module = autolinking_ModuleProvider(name, params)) {
+    return module;
+  }
+
+  return nullptr;
+}
+
+} // namespace facebook::react
+
+JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM* vm, void*) {
+  return facebook::jni::initialize(vm, [] {
+    facebook::react::DefaultTurboModuleManagerDelegate::cxxModuleProvider =
+        &facebook::react::cxxModuleProvider;
+    facebook::react::DefaultTurboModuleManagerDelegate::javaModuleProvider =
+        &facebook::react::javaModuleProvider;
+    facebook::react::DefaultComponentsRegistry::
+        registerComponentDescriptorsFromEntryPoint =
+            &facebook::react::registerComponents;
+  });
+}

node_modules/react-native/ReactAndroid/cmake-utils/folly-flags.cmake

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+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
+
+cmake_minimum_required(VERSION 3.13)
+set(CMAKE_VERBOSE_MAKEFILE on)
+
+# This CMake file exposes the Folly Flags that all the libraries should use when
+# compiling/linking against a dependency which requires folly.
+
+SET(folly_FLAGS
+        -DFOLLY_NO_CONFIG=1
+        -DFOLLY_HAVE_CLOCK_GETTIME=1
+        -DFOLLY_USE_LIBCPP=1
+        -DFOLLY_CFG_NO_COROUTINES=1
+        -DFOLLY_MOBILE=1
+        -DFOLLY_HAVE_RECVMMSG=1
+        -DFOLLY_HAVE_PTHREAD=1
+        # Once we target android-23 above, we can comment
+        # the following line. NDK uses GNU style stderror_r() after API 23.
+        -DFOLLY_HAVE_XSI_STRERROR_R=1
+        )