From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jeremy Apthorp <nornagon@nornagon.net>
Date: Tue, 26 Feb 2019 17:07:45 -0800
Subject: build: add GN build files

This adds GN build files for Node, so we don't have to build with GYP.

Note that there always GN files in upstream Node in 20/21 branches,
however those files were cherry-picked from main branch and do not
really in 20/21. We have to wait until 22 is released to be able to
build with upstream GN files.

diff --git a/BUILD.gn b/BUILD.gn
index 1ed186b597eece7c34cb69c8e1e20870555a040d..541e7d2b8ee05677b64a3ea39c1422560fd5df75 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -1,14 +1,404 @@
-##############################################################################
-#                                                                            #
-#                       DO NOT EDIT THIS FILE!                               #
-#                                                                            #
-##############################################################################
+import("//v8/gni/v8.gni")
+import("//electron/js2c_toolchain.gni")
+import("electron_node.gni")
 
-# This file is used by GN for building, which is NOT the build system used for
-# building official binaries.
-# Please modify the gyp files if you are making changes to build system.
+declare_args() {
+  # Enable the V8 inspector protocol for use with node.
+  node_enable_inspector = true
 
-import("unofficial.gni")
+  # Build node with SSL support.
+  # The variable is called "openssl" for parity with node's GYP build.
+  node_use_openssl = true
 
-node_gn_build("node") {
+  # Use the specified path to system CA (PEM format) in addition to
+  # the BoringSSL supplied CA store or compiled-in Mozilla CA copy.
+  node_openssl_system_ca_path = ""
+
+  # Initialize v8 platform during node.js startup.
+  # NB. this must be turned off in Electron, because Electron initializes the
+  # v8 platform itself.
+  node_use_v8_platform = false
+
+  # Build with DTrace support.
+  node_use_dtrace = false
+
+  # Build with ETW support.
+  node_use_etw = false
+
+  # Build JavaScript in lib/ with DCHECK macros.
+  node_debug_lib = false
+
+  # Custom build tag.
+  node_tag = ""
+
+  # V8 options to pass, see `node --v8-options` for examples
+  node_v8_options = ""
+
+  # Provide a custom URL prefix for the `process.release` properties
+  # `sourceUrl` and `headersUrl`. When compiling a release build, this will
+  # default to https://nodejs.org/download/release/')
+  node_release_urlbase = ""
+
+  # Allows downstream packagers (eg. Linux distributions) to build Electron against system shared libraries.
+  use_system_cares = false
+  use_system_nghttp2 = false
+  use_system_llhttp = false
+  use_system_histogram = false
+}
+
+if (is_linux) {
+ import("//build/config/linux/pkg_config.gni")
+ if (use_system_cares) {
+  pkg_config("cares") {
+    packages = [ "libcares" ]
+  }
+ }
+ if (use_system_nghttp2) {
+  pkg_config("nghttp2") {
+    packages = [ "libnghttp2" ]
+  }
+ }
+}
+
+assert(!node_use_dtrace, "node_use_dtrace not supported in GN")
+assert(!node_use_etw, "node_use_etw not supported in GN")
+
+assert(!node_enable_inspector || node_use_openssl,
+       "node_enable_inspector requires node_use_openssl")
+
+config("node_internals") {
+  defines = [ "NODE_WANT_INTERNALS=1" ]
+}
+
+node_files = read_file("filenames.json", "json")
+library_files = node_files.library_files
+fs_files = node_files.fs_files
+original_fs_files = []
+foreach(file, fs_files) {
+  original_fs_files += [string_replace(string_replace(file, "internal/fs/", "internal/original-fs/"), "lib/fs.js", "lib/original-fs.js")]
+}
+
+copy("node_js2c_inputs") {
+  sources = library_files
+  outputs = [
+    "$target_gen_dir/js2c_inputs/{{source_target_relative}}",
+  ]
+}
+
+action("node_js2c_original_fs") {
+  script = "tools/generate_original_fs.py"
+  inputs = fs_files
+  outputs = []
+  foreach(file, fs_files + original_fs_files) {
+    outputs += ["$target_gen_dir/js2c_inputs/$file"]
+  }
+
+  args = [rebase_path("$target_gen_dir/js2c_inputs")] + fs_files
+}
+
+action("node_js2c_exec") {
+  deps = [
+    "//electron:generate_config_gypi",
+    ":node_js2c_original_fs",
+    ":node_js2c_inputs",
+    ":node_js2c($electron_js2c_toolchain)"
+  ]
+  config_gypi = [ "$root_gen_dir/config.gypi" ]
+  inputs = library_files + get_target_outputs(":node_js2c_original_fs") + config_gypi
+  outputs = [
+    "$target_gen_dir/node_javascript.cc",
+  ]
+
+  script = "//electron/build/run-in-dir.py"
+  out_dir = get_label_info(":anything($electron_js2c_toolchain)", "root_out_dir")
+  args = [ rebase_path("$target_gen_dir/js2c_inputs"), rebase_path("$out_dir/node_js2c") ] +
+         rebase_path(outputs) + library_files + fs_files + original_fs_files + rebase_path(config_gypi)
+}
+
+config("node_features") {
+  defines = []
+  if (node_enable_inspector) {
+    defines += [ "HAVE_INSPECTOR=1" ]
+  } else {
+    defines += [ "HAVE_INSPECTOR=0" ]
+  }
+  if (node_use_openssl) {
+    defines += [ "HAVE_OPENSSL=1" ]
+  } else {
+    defines += [ "HAVE_OPENSSL=0" ]
+  }
+  if (v8_enable_i18n_support) {
+    defines += [ "NODE_HAVE_I18N_SUPPORT=1" ]
+  } else {
+    defines += [ "NODE_HAVE_I18N_SUPPORT=0" ]
+  }
+  if (node_use_v8_platform) {
+    defines += [ "NODE_USE_V8_PLATFORM=1" ]
+  } else {
+    defines += [ "NODE_USE_V8_PLATFORM=0" ]
+  }
+}
+
+config("node_lib_config") {
+  include_dirs = [ "src" ]
+
+  cflags = [
+    "-Wno-shadow",
+    # FIXME(deepak1556): include paths should be corrected,
+    # refer https://docs.google.com/presentation/d/1oxNHaVjA9Gn_rTzX6HIpJHP7nXRua_0URXxxJ3oYRq0/edit#slide=id.g71ecd450e_2_702
+    "-Wno-microsoft-include",
+  ]
+
+  configs = [ ":node_features" ]
+
+  if (is_debug) {
+    defines = [ "DEBUG" ]
+  }
+}
+
+config("node_internal_config") {
+  visibility = [
+    ":*",
+    "src/inspector:*",
+  ]
+  defines = [
+    "NODE_WANT_INTERNALS=1",
+    "NODE_IMPLEMENTATION",
+  ]
+  if (node_module_version != "") {
+    defines += [ "NODE_EMBEDDER_MODULE_VERSION=" + node_module_version ]
+  }
+  if (is_component_build) {
+    defines += [
+      "NODE_SHARED_MODE",
+    ]
+  }
+
+  if (target_cpu == "x86") {
+    node_arch = "ia32"
+  } else {
+    node_arch = target_cpu
+  }
+  defines += [ "NODE_ARCH=\"$node_arch\"" ]
+
+  if (target_os == "win") {
+    node_platform = "win32"
+  } else if (target_os == "mac") {
+    node_platform = "darwin"
+  } else {
+    node_platform = target_os
+  }
+  defines += [ "NODE_PLATFORM=\"$node_platform\"" ]
+
+  if (is_win) {
+    defines += [
+      "NOMINMAX",
+      "_UNICODE=1",
+    ]
+  } else {
+    defines += [ "__POSIX__" ]
+  }
+
+  if (node_tag != "") {
+    defines += [ "NODE_TAG=\"$node_tag\"" ]
+  }
+  if (node_v8_options != "") {
+    defines += [ "NODE_V8_OPTIONS=\"$node_v8_options\"" ]
+  }
+  if (node_release_urlbase != "") {
+    defines += [ "NODE_RELEASE_URLBASE=\"$node_release_urlbase\"" ]
+  }
+
+  if (node_use_openssl) {
+    defines += [
+      "NODE_OPENSSL_SYSTEM_CERT_PATH=\"$node_openssl_system_ca_path\"",
+      "EVP_CTRL_CCM_SET_TAG=EVP_CTRL_GCM_SET_TAG",
+    ]
+  }
+}
+
+executable("overlapped-checker") {
+  sources = []
+  if (is_win) {
+    sources += [ "test/overlapped-checker/main_win.c" ]
+  } else {
+    sources += [ "test/overlapped-checker/main_unix.c" ]
+  }
+}
+
+if (current_toolchain == electron_js2c_toolchain) {
+  executable("node_js2c") {
+    defines = []
+    sources = [
+      "tools/js2c.cc",
+      "tools/executable_wrapper.h"
+    ]
+    include_dirs = [ "tools" ]
+    deps = [
+      "deps/simdutf($electron_js2c_toolchain)",
+      "deps/uv($electron_js2c_toolchain)",
+      "//v8"
+    ]
+
+    if (!is_win) {
+      defines += [ "NODE_JS2C_USE_STRING_LITERALS" ]
+    }
+    if (is_debug) {
+      cflags_cc = [ "-g", "-O0" ]
+      defines += [ "DEBUG" ]
+    }
+  }
+}
+
+component("node_lib") {
+  deps = [
+    ":node_js2c_exec",
+    "deps/googletest:gtest",
+    "deps/ada",
+    "deps/base64",
+    "deps/simdutf",
+    "deps/uvwasi",
+    "//third_party/zlib",
+    "//third_party/brotli:dec",
+    "//third_party/brotli:enc",
+    "//v8:v8_libplatform",
+  ]
+  if (use_system_cares) {
+    configs += [ ":cares" ]
+  } else {
+    deps += [ "deps/cares" ]
+  }
+  if (use_system_nghttp2) {
+    configs += [ ":nghttp2" ]
+  } else {
+    deps += [ "deps/nghttp2" ]
+  }
+  public_deps = [
+    "deps/uv",
+    "//electron:electron_js2c",
+    "//v8",
+  ]
+  configs += [ ":node_internal_config" ]
+  public_configs = [ ":node_lib_config" ]
+  include_dirs = [
+    "src",
+    "deps/postject"
+  ]
+  libs = []
+  if (use_system_llhttp) {
+    libs += [ "llhttp" ]
+  } else {
+    deps += [ "deps/llhttp" ]
+  }
+  if (use_system_histogram) {
+    libs += [ "hdr_histogram" ]
+    include_dirs += [ "/usr/include/hdr" ]
+  } else {
+    deps += [ "deps/histogram" ]
+  }
+  frameworks = []
+  cflags_cc = [
+    "-Wno-deprecated-declarations",
+    "-Wno-implicit-fallthrough",
+    "-Wno-return-type",
+    "-Wno-sometimes-uninitialized",
+    "-Wno-string-plus-int",
+    "-Wno-unused-function",
+    "-Wno-unused-label",
+    "-Wno-unused-private-field",
+    "-Wno-unused-variable",
+  ]
+
+  if (v8_enable_i18n_support) {
+    deps += [ "//third_party/icu" ]
+  }
+
+  sources = node_files.node_sources
+  sources += [
+    "$root_gen_dir/electron_natives.cc",
+    "$target_gen_dir/node_javascript.cc",
+    "src/node_snapshot_stub.cc",
+  ]
+
+  if (is_win) {
+    libs += [ "psapi.lib" ]
+  }
+  if (is_mac) {
+    frameworks += [ "CoreFoundation.framework" ]
+  }
+
+  if (node_enable_inspector) {
+    sources += [
+      "src/inspector_agent.cc",
+      "src/inspector_agent.h",
+      "src/inspector_io.cc",
+      "src/inspector_io.h",
+      "src/inspector_js_api.cc",
+      "src/inspector_profiler.cc",
+      "src/inspector_socket.cc",
+      "src/inspector_socket.h",
+      "src/inspector_socket_server.cc",
+      "src/inspector_socket_server.h",
+    ]
+    deps += [ "src/inspector" ]
+  }
+
+  if (node_use_openssl) {
+    deps += [ "//third_party/boringssl" ]
+    sources += [
+      "src/crypto/crypto_aes.cc",
+      "src/crypto/crypto_aes.h",
+      "src/crypto/crypto_bio.cc",
+      "src/crypto/crypto_bio.h",
+      "src/crypto/crypto_cipher.cc",
+      "src/crypto/crypto_cipher.h",
+      "src/crypto/crypto_clienthello-inl.h",
+      "src/crypto/crypto_clienthello.cc",
+      "src/crypto/crypto_clienthello.h",
+      "src/crypto/crypto_common.cc",
+      "src/crypto/crypto_common.h",
+      "src/crypto/crypto_context.cc",
+      "src/crypto/crypto_context.h",
+      "src/crypto/crypto_dh.cc",
+      "src/crypto/crypto_dh.h",
+      "src/crypto/crypto_dsa.cc",
+      "src/crypto/crypto_dsa.h",
+      "src/crypto/crypto_ec.cc",
+      "src/crypto/crypto_ec.h",
+      "src/crypto/crypto_groups.h",
+      "src/crypto/crypto_hash.cc",
+      "src/crypto/crypto_hash.h",
+      "src/crypto/crypto_hkdf.cc",
+      "src/crypto/crypto_hkdf.h",
+      "src/crypto/crypto_hmac.cc",
+      "src/crypto/crypto_hmac.h",
+      "src/crypto/crypto_keygen.cc",
+      "src/crypto/crypto_keygen.h",
+      "src/crypto/crypto_keys.cc",
+      "src/crypto/crypto_keys.h",
+      "src/crypto/crypto_pbkdf2.cc",
+      "src/crypto/crypto_pbkdf2.h",
+      "src/crypto/crypto_random.cc",
+      "src/crypto/crypto_random.h",
+      "src/crypto/crypto_rsa.cc",
+      "src/crypto/crypto_rsa.h",
+      "src/crypto/crypto_scrypt.cc",
+      "src/crypto/crypto_scrypt.h",
+      "src/crypto/crypto_sig.cc",
+      "src/crypto/crypto_sig.h",
+      "src/crypto/crypto_spkac.cc",
+      "src/crypto/crypto_spkac.h",
+      "src/crypto/crypto_timing.cc",
+      "src/crypto/crypto_timing.h",
+      "src/crypto/crypto_tls.cc",
+      "src/crypto/crypto_tls.h",
+      "src/crypto/crypto_util.cc",
+      "src/crypto/crypto_util.h",
+      "src/crypto/crypto_x509.cc",
+      "src/crypto/crypto_x509.h",
+      "src/node_crypto.cc",
+      "src/node_crypto.h",
+    ]
+    cflags_cc += [ "-Wno-sign-compare" ]
+  }
 }
diff --git a/deps/ada/BUILD.gn b/deps/ada/BUILD.gn
index e92ac3a3beac143dced2efb05304ed8ba832b067..1ce69e9deba1a9b191e8d95f4c82e0ec1f7b50ca 100644
--- a/deps/ada/BUILD.gn
+++ b/deps/ada/BUILD.gn
@@ -1,14 +1,12 @@
-##############################################################################
-#                                                                            #
-#                       DO NOT EDIT THIS FILE!                               #
-#                                                                            #
-##############################################################################
+import("//v8/gni/v8.gni")
 
-# This file is used by GN for building, which is NOT the build system used for
-# building official binaries.
-# Please modify the gyp files if you are making changes to build system.
+config("ada_config") {
+  include_dirs = [ "." ]
+}
 
-import("unofficial.gni")
+static_library("ada") {
+  include_dirs = [ "." ]
+  sources = [ "ada.cpp" ]
 
-ada_gn_build("ada") {
+  public_configs = [ ":ada_config" ]
 }
diff --git a/deps/base64/unofficial.gni b/deps/base64/unofficial.gni
index 269c62d976d6adea6d020568094e23e9b0a9dc7c..14ffff0b4badb7ad71f2b6df43ad2eb300fc55ed 100644
--- a/deps/base64/unofficial.gni
+++ b/deps/base64/unofficial.gni
@@ -18,6 +18,10 @@ template("base64_gn_build") {
     }
   }
 
+  # FIXME(zcbenz): ASM on win/x86 compiles perfectly in upstream Node, figure
+  # out why it does not work in Electron's build configs.
+  support_x86_asm = target_cpu == "x64" || (target_cpu == "x86" && !is_win)
+
   config("base64_internal_config") {
     include_dirs = [ "base64/lib" ]
     if (is_component_build) {
@@ -25,7 +29,7 @@ template("base64_gn_build") {
     } else {
       defines = []
     }
-    if (target_cpu == "x86" || target_cpu == "x64") {
+    if (support_x86_asm) {
       defines += [
         "HAVE_SSSE3=1",
         "HAVE_SSE41=1",
@@ -75,7 +79,7 @@ template("base64_gn_build") {
   source_set("base64_ssse3") {
     configs += [ ":base64_internal_config" ]
     sources = [ "base64/lib/arch/ssse3/codec.c" ]
-    if (target_cpu == "x86" || target_cpu == "x64") {
+    if (support_x86_asm) {
       if (is_clang || !is_win) {
         cflags_c = [ "-mssse3" ]
       }
@@ -85,7 +89,7 @@ template("base64_gn_build") {
   source_set("base64_sse41") {
     configs += [ ":base64_internal_config" ]
     sources = [ "base64/lib/arch/sse41/codec.c" ]
-    if (target_cpu == "x86" || target_cpu == "x64") {
+    if (support_x86_asm) {
       if (is_clang || !is_win) {
         cflags_c = [ "-msse4.1" ]
       }
@@ -95,7 +99,7 @@ template("base64_gn_build") {
   source_set("base64_sse42") {
     configs += [ ":base64_internal_config" ]
     sources = [ "base64/lib/arch/sse42/codec.c" ]
-    if (target_cpu == "x86" || target_cpu == "x64") {
+    if (support_x86_asm) {
       if (is_clang || !is_win) {
         cflags_c = [ "-msse4.2" ]
       }
@@ -105,7 +109,7 @@ template("base64_gn_build") {
   source_set("base64_avx") {
     configs += [ ":base64_internal_config" ]
     sources = [ "base64/lib/arch/avx/codec.c" ]
-    if (target_cpu == "x86" || target_cpu == "x64") {
+    if (support_x86_asm) {
       if (is_clang || !is_win) {
         cflags_c = [ "-mavx" ]
       } else if (is_win) {
@@ -117,7 +121,7 @@ template("base64_gn_build") {
   source_set("base64_avx2") {
     configs += [ ":base64_internal_config" ]
     sources = [ "base64/lib/arch/avx2/codec.c" ]
-    if (target_cpu == "x86" || target_cpu == "x64") {
+    if (support_x86_asm) {
       if (is_clang || !is_win) {
         cflags_c = [ "-mavx2" ]
       } else if (is_win) {
@@ -129,7 +133,7 @@ template("base64_gn_build") {
   source_set("base64_avx512") {
     configs += [ ":base64_internal_config" ]
     sources = [ "base64/lib/arch/avx512/codec.c" ]
-    if (target_cpu == "x86" || target_cpu == "x64") {
+    if (support_x86_asm) {
       if (is_clang || !is_win) {
         cflags_c = [
           "-mavx512vl",
diff --git a/deps/cares/BUILD.gn b/deps/cares/BUILD.gn
index ac19ac73ed1e24c61cb679f3851685b79cfc8b39..fb1b3138cdb674205afa0ffe078270585843eca3 100644
--- a/deps/cares/BUILD.gn
+++ b/deps/cares/BUILD.gn
@@ -1,14 +1,143 @@
-##############################################################################
-#                                                                            #
-#                       DO NOT EDIT THIS FILE!                               #
-#                                                                            #
-##############################################################################
+config("cares_config") {
+  include_dirs = [ "include", "src/lib" ]
+}
+static_library("cares") {
+  defines = [ "CARES_STATICLIB" ]
+  include_dirs = [ "include" ]
+  public_configs = [ ":cares_config" ]
+
+  libs = []
+  cflags_c = [
+    "-Wno-logical-not-parentheses",
+    "-Wno-implicit-fallthrough",
+    "-Wno-sign-compare",
+  ]
+
+  sources = [
+    "include/ares.h",
+    "include/ares_dns.h",
+    "include/ares_nameser.h",
+    "include/ares_rules.h",
+    "include/ares_version.h",
+    "src/lib/ares__addrinfo2hostent.c",
+    "src/lib/ares__addrinfo_localhost.c",
+    "src/lib/ares_android.c",
+    "src/lib/ares__buf.c",
+    "src/lib/ares__buf.h",
+    "src/lib/ares__close_sockets.c",
+    "src/lib/ares__htable.c",
+    "src/lib/ares__htable.h",
+    "src/lib/ares__htable_asvp.c",
+    "src/lib/ares__htable_asvp.h",
+    "src/lib/ares__htable_stvp.c",
+    "src/lib/ares__htable_stvp.h",
+    "src/lib/ares__llist.c",
+    "src/lib/ares__llist.h",
+    "src/lib/ares__get_hostent.c",
+    "src/lib/ares__parse_into_addrinfo.c",
+    "src/lib/ares__read_line.c",
+    "src/lib/ares__readaddrinfo.c",
+    "src/lib/ares__slist.c",
+    "src/lib/ares__slist.h",
+    "src/lib/ares__sortaddrinfo.c",
+    "src/lib/ares__timeval.c",
+    "src/lib/ares_cancel.c",
+    "src/lib/ares_create_query.c",
+    "src/lib/ares_data.c",
+    "src/lib/ares_data.h",
+    "src/lib/ares_destroy.c",
+    "src/lib/ares_expand_name.c",
+    "src/lib/ares_expand_string.c",
+    "src/lib/ares_fds.c",
+    "src/lib/ares_free_hostent.c",
+    "src/lib/ares_free_string.c",
+    "src/lib/ares_freeaddrinfo.c",
+    "src/lib/ares_getaddrinfo.c",
+    "src/lib/ares_getenv.h",
+    "src/lib/ares_gethostbyaddr.c",
+    "src/lib/ares_gethostbyname.c",
+    "src/lib/ares_getnameinfo.c",
+    "src/lib/ares_getsock.c",
+    "src/lib/ares_inet_net_pton.h",
+    "src/lib/ares_init.c",
+    "src/lib/ares_ipv6.h",
+    "src/lib/ares_library_init.c",
+    "src/lib/ares_library_init.h",
+    "src/lib/ares_mkquery.c",
+    "src/lib/ares_nameser.h",
+    "src/lib/ares_nowarn.c",
+    "src/lib/ares_nowarn.h",
+    "src/lib/ares_options.c",
+    "src/lib/ares_parse_aaaa_reply.c",
+    "src/lib/ares_parse_a_reply.c",
+    "src/lib/ares_parse_caa_reply.c",
+    "src/lib/ares_parse_mx_reply.c",
+    "src/lib/ares_parse_naptr_reply.c",
+    "src/lib/ares_parse_ns_reply.c",
+    "src/lib/ares_parse_ptr_reply.c",
+    "src/lib/ares_parse_soa_reply.c",
+    "src/lib/ares_parse_srv_reply.c",
+    "src/lib/ares_parse_txt_reply.c",
+    "src/lib/ares_parse_uri_reply.c",
+    "src/lib/ares_platform.h",
+    "src/lib/ares_private.h",
+    "src/lib/ares_process.c",
+    "src/lib/ares_query.c",
+    "src/lib/ares_rand.c",
+    "src/lib/ares_search.c",
+    "src/lib/ares_send.c",
+    "src/lib/ares_setup.h",
+    "src/lib/ares_strcasecmp.c",
+    "src/lib/ares_strcasecmp.h",
+    "src/lib/ares_strdup.c",
+    "src/lib/ares_strdup.h",
+    "src/lib/ares_strerror.c",
+    "src/lib/ares_strsplit.c",
+    "src/lib/ares_timeout.c",
+    "src/lib/ares_version.c",
+    "src/lib/bitncmp.c",
+    "src/lib/bitncmp.h",
+    "src/lib/inet_net_pton.c",
+    "src/lib/inet_ntop.c",
+    "src/lib/setup_once.h",
+    "src/tools/ares_getopt.c",
+    "src/tools/ares_getopt.h",
+  ]
+
+  if (!is_win) {
+    defines += [
+      "_DARWIN_USE_64_BIT_INODE=1",
+      "_LARGEFILE_SOURCE",
+      "_FILE_OFFSET_BITS=64",
+      "_GNU_SOURCE",
+    ]
+  }
 
-# This file is used by GN for building, which is NOT the build system used for
-# building official binaries.
-# Please modify the gyp files if you are making changes to build system.
+  if (is_win) {
+    defines += [ "CARES_PULL_WS2TCPIP_H=1" ]
+    include_dirs += [ "config/win32" ]
+    sources += [
+      "src/lib/ares_getenv.c",
+      "src/lib/ares_iphlpapi.h",
+      "src/lib/ares_platform.c",
+      "src/lib/config-win32.h",
+      "src/lib/windows_port.c",
+    ]
+    libs += [
+      "ws2_32.lib",
+      "iphlpapi.lib",
+    ]
+  } else {
+    defines += [ "HAVE_CONFIG_H" ]
+  }
 
-import("unofficial.gni")
+  if (is_linux) {
+    include_dirs += [ "config/linux" ]
+    sources += [ "config/linux/ares_config.h" ]
+  }
 
-cares_gn_build("cares") {
+  if (is_mac) {
+    include_dirs += [ "config/darwin" ]
+    sources += [ "config/darwin/ares_config.h" ]
+  }
 }
diff --git a/deps/googletest/BUILD.gn b/deps/googletest/BUILD.gn
index de13f3f653b5d53610f4611001c10dce332293c2..0daf8c006cef89e76d7eccec3e924bd2718021c9 100644
--- a/deps/googletest/BUILD.gn
+++ b/deps/googletest/BUILD.gn
@@ -1,14 +1,64 @@
-##############################################################################
-#                                                                            #
-#                       DO NOT EDIT THIS FILE!                               #
-#                                                                            #
-##############################################################################
+config("gtest_config") {
+  include_dirs = [ "include" ]
+  defines = [ "UNIT_TEST" ]
+}
+
+static_library("gtest") {
+  include_dirs = [
+    "include",
+    "." # src
+  ]
+
+  public_configs = [ ":gtest_config" ]
 
-# This file is used by GN for building, which is NOT the build system used for
-# building official binaries.
-# Please modify the gyp files if you are making changes to build system.
+  cflags_cc = [
+    "-Wno-c++98-compat-extra-semi",
+    "-Wno-unused-const-variable",
+    "-Wno-unreachable-code-return",
+  ]
 
-import("unofficial.gni")
+  defines = [
+    "GTEST_HAS_POSIX_RE=0",
+    "GTEST_LANG_CXX11=1",
+  ]
+
+  sources = [
+    "include/gtest/gtest_pred_impl.h",
+    "include/gtest/gtest_prod.h",
+    "include/gtest/gtest-death-test.h",
+    "include/gtest/gtest-matchers.h",
+    "include/gtest/gtest-message.h",
+    "include/gtest/gtest-param-test.h",
+    "include/gtest/gtest-printers.h",
+    "include/gtest/gtest-spi.h",
+    "include/gtest/gtest-test-part.h",
+    "include/gtest/gtest-typed-test.h",
+    "include/gtest/gtest.h",
+    "include/gtest/internal/gtest-death-test-internal.h",
+    "include/gtest/internal/gtest-filepath.h",
+    "include/gtest/internal/gtest-internal.h",
+    "include/gtest/internal/gtest-param-util.h",
+    "include/gtest/internal/gtest-port-arch.h",
+    "include/gtest/internal/gtest-port.h",
+    "include/gtest/internal/gtest-string.h",
+    "include/gtest/internal/gtest-type-util.h",
+    "include/gtest/internal/custom/gtest-port.h",
+    "include/gtest/internal/custom/gtest-printers.h",
+    "include/gtest/internal/custom/gtest.h",
+    "src/gtest-all.cc",
+    "src/gtest-death-test.cc",
+    "src/gtest-filepath.cc",
+    "src/gtest-internal-inl.h",
+    "src/gtest-matchers.cc",
+    "src/gtest-port.cc",
+    "src/gtest-printers.cc",
+    "src/gtest-test-part.cc",
+    "src/gtest-typed-test.cc",
+    "src/gtest.cc",
+  ]
+}
 
-googletest_gn_build("googletest") {
+static_library("gtest_main") {
+  deps = [ ":gtest" ]
+  sources = [ "src/gtest_main.cc" ]
 }
diff --git a/deps/histogram/BUILD.gn b/deps/histogram/BUILD.gn
index e2f3ee37137a6b7d45cbe79f8b9ba7f693ffc4d3..85467b372f01cf602af45fa2f0d599acabfc2310 100644
--- a/deps/histogram/BUILD.gn
+++ b/deps/histogram/BUILD.gn
@@ -1,14 +1,19 @@
-##############################################################################
-#                                                                            #
-#                       DO NOT EDIT THIS FILE!                               #
-#                                                                            #
-##############################################################################
+config("histogram_config") {
+  include_dirs = [ "include" ]
 
-# This file is used by GN for building, which is NOT the build system used for
-# building official binaries.
-# Please modify the gyp files if you are making changes to build system.
+  cflags = [
+    "-Wno-implicit-function-declaration",
+    "-Wno-incompatible-pointer-types",
+    "-Wno-unused-function",
+    "-Wno-atomic-alignment",
+  ]
+}
 
-import("unofficial.gni")
+static_library("histogram") {
+  public_configs = [ ":histogram_config" ]
 
-histogram_gn_build("histogram") {
+  sources = [
+    "src/hdr_histogram.c",
+    "src/hdr_histogram.h",
+  ]
 }
diff --git a/deps/llhttp/BUILD.gn b/deps/llhttp/BUILD.gn
index 64a2a4799d5530276f46aa1faa63ece063390ada..fb000f8ee7647c375bc190d1729d67bb7770d109 100644
--- a/deps/llhttp/BUILD.gn
+++ b/deps/llhttp/BUILD.gn
@@ -1,14 +1,15 @@
-##############################################################################
-#                                                                            #
-#                       DO NOT EDIT THIS FILE!                               #
-#                                                                            #
-##############################################################################
-
-# This file is used by GN for building, which is NOT the build system used for
-# building official binaries.
-# Please modify the gyp files if you are making changes to build system.
-
-import("unofficial.gni")
+config("llhttp_config") {
+  include_dirs = [ "include" ]
+  cflags = [ "-Wno-unreachable-code" ]
+}
 
-llhttp_gn_build("llhttp") {
+static_library("llhttp") {
+  include_dirs = [ "include" ]
+  public_configs = [ ":llhttp_config" ]
+  cflags_c = [ "-Wno-implicit-fallthrough" ]
+  sources = [
+    "src/api.c",
+    "src/http.c",
+    "src/llhttp.c",
+  ]
 }
diff --git a/deps/nghttp2/BUILD.gn b/deps/nghttp2/BUILD.gn
index 274352b0e2449f8db49d9a49c6b92a69f97e8363..7d2ca477db2415f43ababa270d8aefa3124b2765 100644
--- a/deps/nghttp2/BUILD.gn
+++ b/deps/nghttp2/BUILD.gn
@@ -1,14 +1,51 @@
-##############################################################################
-#                                                                            #
-#                       DO NOT EDIT THIS FILE!                               #
-#                                                                            #
-##############################################################################
-
-# This file is used by GN for building, which is NOT the build system used for
-# building official binaries.
-# Please modify the gyp files if you are making changes to build system.
+config("nghttp2_config") {
+  defines = [ "NGHTTP2_STATICLIB" ]
+  include_dirs = [ "lib/includes" ]
+}
+static_library("nghttp2") {
+  public_configs = [ ":nghttp2_config" ]
+  defines = [
+    "_U_",
+    "BUILDING_NGHTTP2",
+    "NGHTTP2_STATICLIB",
+    "HAVE_CONFIG_H",
+  ]
+  include_dirs = [ "lib/includes" ]
 
-import("unofficial.gni")
+  cflags_c = [
+    "-Wno-implicit-function-declaration",
+    "-Wno-implicit-fallthrough",
+    "-Wno-string-plus-int",
+    "-Wno-unreachable-code-return",
+    "-Wno-unused-but-set-variable",
+  ]
 
-nghttp2_gn_build("nghttp2") {
+  sources = [
+    "lib/nghttp2_buf.c",
+    "lib/nghttp2_callbacks.c",
+    "lib/nghttp2_debug.c",
+    "lib/nghttp2_extpri.c",
+    "lib/nghttp2_frame.c",
+    "lib/nghttp2_hd.c",
+    "lib/nghttp2_hd_huffman.c",
+    "lib/nghttp2_hd_huffman_data.c",
+    "lib/nghttp2_helper.c",
+    "lib/nghttp2_http.c",
+    "lib/nghttp2_map.c",
+    "lib/nghttp2_mem.c",
+    "lib/nghttp2_npn.c",
+    "lib/nghttp2_option.c",
+    "lib/nghttp2_outbound_item.c",
+    "lib/nghttp2_pq.c",
+    "lib/nghttp2_priority_spec.c",
+    "lib/nghttp2_queue.c",
+    "lib/nghttp2_ratelim.c",
+    "lib/nghttp2_rcbuf.c",
+    "lib/nghttp2_session.c",
+    "lib/nghttp2_stream.c",
+    "lib/nghttp2_submit.c",
+    "lib/nghttp2_time.c",
+    "lib/nghttp2_version.c",
+    "lib/sfparse.c"
+  ]
 }
diff --git a/deps/simdjson/BUILD.gn b/deps/simdjson/BUILD.gn
index d0580ccf354d2000fb0075fd3bb4579f93477927..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 100644
--- a/deps/simdjson/BUILD.gn
+++ b/deps/simdjson/BUILD.gn
@@ -1,14 +0,0 @@
-##############################################################################
-#                                                                            #
-#                       DO NOT EDIT THIS FILE!                               #
-#                                                                            #
-##############################################################################
-
-# This file is used by GN for building, which is NOT the build system used for
-# building official binaries.
-# Please modify the gyp files if you are making changes to build system.
-
-import("unofficial.gni")
-
-simdjson_gn_build("simdjson") {
-}
diff --git a/deps/simdutf/BUILD.gn b/deps/simdutf/BUILD.gn
index 119d49456911e99944294bd00b3f182a8f0e35b5..ce38c3633a228306622a7237067393d25332c59c 100644
--- a/deps/simdutf/BUILD.gn
+++ b/deps/simdutf/BUILD.gn
@@ -1,14 +1,21 @@
-##############################################################################
-#                                                                            #
-#                       DO NOT EDIT THIS FILE!                               #
-#                                                                            #
-##############################################################################
+config("simdutf_config") {
+  include_dirs = [ "." ]
+}
 
-# This file is used by GN for building, which is NOT the build system used for
-# building official binaries.
-# Please modify the gyp files if you are making changes to build system.
+static_library("simdutf") {
+  include_dirs = [ "." ]
+  sources = [
+    "simdutf.cpp",
+  ]
 
-import("unofficial.gni")
+  public_configs = [ ":simdutf_config" ]
 
-simdutf_gn_build("simdutf") {
+  cflags_cc = [
+    "-Wno-ambiguous-reversed-operator",
+    "-Wno-c++98-compat-extra-semi",
+    "-Wno-unreachable-code",
+    "-Wno-unreachable-code-break",
+    "-Wno-unused-const-variable",
+    "-Wno-unused-function",
+  ]
 }
diff --git a/deps/uv/BUILD.gn b/deps/uv/BUILD.gn
index 8e6ac27048b5965e20f35c7a63e469beb6fa5970..7518168141db7958550c7f5dc1ed17ccdbbe4a60 100644
--- a/deps/uv/BUILD.gn
+++ b/deps/uv/BUILD.gn
@@ -1,14 +1,194 @@
-##############################################################################
-#                                                                            #
-#                       DO NOT EDIT THIS FILE!                               #
-#                                                                            #
-##############################################################################
+config("libuv_config") {
+  include_dirs = [ "include" ]
 
-# This file is used by GN for building, which is NOT the build system used for
-# building official binaries.
-# Please modify the gyp files if you are making changes to build system.
+  defines = []
 
-import("unofficial.gni")
+  if (is_linux) {
+    defines += [ "_POSIX_C_SOURCE=200112" ]
+  }
+  if (!is_win) {
+    defines += [
+      "_LARGEFILE_SOURCE",
+      "_FILE_OFFSET_BITS=64",
+    ]
+  }
+  if (is_mac) {
+    defines += [ "_DARWIN_USE_64_BIT_INODE=1" ]
+  }
+}
+
+static_library("uv") {
+  include_dirs = [
+    "include",
+    "src",
+  ]
+
+  public_configs = [ ":libuv_config" ]
+
+  ldflags = []
+
+  defines = []
+
+  # This only has an effect on Windows, where it will cause libuv's symbols to be exported in node.lib
+  defines += [ "BUILDING_UV_SHARED=1" ]
+
+  cflags_c = [
+    "-Wno-incompatible-pointer-types",
+    "-Wno-bitwise-op-parentheses",
+    "-Wno-implicit-fallthrough",
+    "-Wno-implicit-function-declaration",
+    "-Wno-missing-braces",
+    "-Wno-sign-compare",
+    "-Wno-sometimes-uninitialized",
+    "-Wno-string-conversion",
+    "-Wno-switch",
+    "-Wno-unused-function",
+    "-Wno-unused-result",
+    "-Wno-unused-variable",
+    "-Wno-unreachable-code",
+    "-Wno-unreachable-code-return",
+    "-Wno-unused-but-set-variable",
+    "-Wno-shadow",
+  ]
+
+  libs = []
+
+  sources = [
+    "include/uv.h",
+    "include/uv/tree.h",
+    "include/uv/errno.h",
+    "include/uv/threadpool.h",
+    "include/uv/version.h",
+    "src/fs-poll.c",
+    "src/heap-inl.h",
+    "src/idna.c",
+    "src/idna.h",
+    "src/inet.c",
+    "src/queue.h",
+    "src/random.c",
+    "src/strscpy.c",
+    "src/strscpy.h",
+    "src/strtok.c",
+    "src/strtok.h",
+    "src/thread-common.c",
+    "src/threadpool.c",
+    "src/timer.c",
+    "src/uv-data-getter-setters.c",
+    "src/uv-common.c",
+    "src/uv-common.h",
+    "src/version.c",
+  ]
+
+  if (is_win) {
+    defines += [ "_GNU_SOURCE" ]
+    sources += [
+      "include/uv/win.h",
+      "src/win/async.c",
+      "src/win/atomicops-inl.h",
+      "src/win/core.c",
+      "src/win/detect-wakeup.c",
+      "src/win/dl.c",
+      "src/win/error.c",
+      "src/win/fs.c",
+      "src/win/fs-event.c",
+      "src/win/getaddrinfo.c",
+      "src/win/getnameinfo.c",
+      "src/win/handle.c",
+      "src/win/handle-inl.h",
+      "src/win/internal.h",
+      "src/win/loop-watcher.c",
+      "src/win/pipe.c",
+      "src/win/thread.c",
+      "src/win/poll.c",
+      "src/win/process.c",
+      "src/win/process-stdio.c",
+      "src/win/req-inl.h",
+      "src/win/signal.c",
+      "src/win/snprintf.c",
+      "src/win/stream.c",
+      "src/win/stream-inl.h",
+      "src/win/tcp.c",
+      "src/win/tty.c",
+      "src/win/udp.c",
+      "src/win/util.c",
+      "src/win/winapi.c",
+      "src/win/winapi.h",
+      "src/win/winsock.c",
+      "src/win/winsock.h",
+    ]
 
-uv_gn_build("uv") {
+    libs += [
+      "advapi32.lib",
+      "iphlpapi.lib",
+      "psapi.lib",
+      "shell32.lib",
+      "user32.lib",
+      "userenv.lib",
+      "ws2_32.lib",
+    ]
+  } else {
+    sources += [
+      "include/uv/unix.h",
+      "include/uv/linux.h",
+      "include/uv/sunos.h",
+      "include/uv/darwin.h",
+      "include/uv/bsd.h",
+      "include/uv/aix.h",
+      "src/unix/async.c",
+      "src/unix/core.c",
+      "src/unix/dl.c",
+      "src/unix/fs.c",
+      "src/unix/getaddrinfo.c",
+      "src/unix/getnameinfo.c",
+      "src/unix/internal.h",
+      "src/unix/loop.c",
+      "src/unix/loop-watcher.c",
+      "src/unix/pipe.c",
+      "src/unix/poll.c",
+      "src/unix/process.c",
+      "src/unix/random-devurandom.c",
+      "src/unix/signal.c",
+      "src/unix/stream.c",
+      "src/unix/tcp.c",
+      "src/unix/thread.c",
+      "src/unix/tty.c",
+      "src/unix/udp.c",
+    ]
+    libs += [ "m" ]
+    ldflags += [ "-pthread" ]
+  }
+  if (is_mac || is_linux) {
+    sources += [ "src/unix/proctitle.c" ]
+  }
+  if (is_mac) {
+    sources += [
+      "src/unix/darwin-proctitle.c",
+      "src/unix/darwin.c",
+      "src/unix/fsevents.c",
+      "src/unix/random-getentropy.c",
+    ]
+    defines += [
+      "_DARWIN_USE_64_BIT_INODE=1",
+      "_DARWIN_UNLIMITED_SELECT=1",
+    ]
+  }
+  if (is_linux) {
+    defines += [ "_GNU_SOURCE" ]
+    sources += [
+      "src/unix/linux.c",
+      "src/unix/procfs-exepath.c",
+      "src/unix/random-getrandom.c",
+      "src/unix/random-sysctl-linux.c",
+    ]
+    libs += [
+      "dl",
+      "rt",
+    ]
+  }
+  if (is_mac) {  # is_bsd
+    sources += [
+      "src/unix/bsd-ifaddrs.c",
+      "src/unix/kqueue.c",
+    ]
+  }
 }
diff --git a/deps/uvwasi/BUILD.gn b/deps/uvwasi/BUILD.gn
index 4f8fb081df805a786e523e5f0ffbb0096fdeca99..d9fcf8dc972b1caa2b7a130b1144c685316035cd 100644
--- a/deps/uvwasi/BUILD.gn
+++ b/deps/uvwasi/BUILD.gn
@@ -1,14 +1,39 @@
-##############################################################################
-#                                                                            #
-#                       DO NOT EDIT THIS FILE!                               #
-#                                                                            #
-##############################################################################
+config("uvwasi_config") {
+  include_dirs = [ "include" ]
+}
+
+static_library("uvwasi") {
+  include_dirs = [
+    "include",
+    "src",
+  ]
+
+  defines = []
+  if (is_linux) {
+    defines += [
+      "_GNU_SOURCE",
+      "_POSIX_C_SOURCE=200112"
+    ]
+  }
+
+  deps = [ "../../deps/uv" ]
 
-# This file is used by GN for building, which is NOT the build system used for
-# building official binaries.
-# Please modify the gyp files if you are making changes to build system.
+  public_configs = [ ":uvwasi_config" ]
 
-import("unofficial.gni")
+  cflags_c = []
+  if (!is_win) {
+    cflags_c += [ "-fvisibility=hidden" ]
+  }
 
-uvwasi_gn_build("uvwasi") {
+  sources = [
+    "src/clocks.c",
+    "src/fd_table.c",
+    "src/path_resolver.c",
+    "src/poll_oneoff.c",
+    "src/sync_helpers.c",
+    "src/uv_mapping.c",
+    "src/uvwasi.c",
+    "src/wasi_rights.c",
+    "src/wasi_serdes.c"
+  ]
 }
diff --git a/electron_node.gni b/electron_node.gni
new file mode 100644
index 0000000000000000000000000000000000000000..af9cbada10203b387fb9732b346583b1c4349223
--- /dev/null
+++ b/electron_node.gni
@@ -0,0 +1,4 @@
+declare_args() {
+  # Allows embedders to override the NODE_MODULE_VERSION define
+  node_module_version = ""
+}
diff --git a/filenames.json b/filenames.json
new file mode 100644
index 0000000000000000000000000000000000000000..4404338bb5d576b341cae3bf79c84334fb05654f
--- /dev/null
+++ b/filenames.json
@@ -0,0 +1,733 @@
+// This file is automatically generated by generate_gn_filenames_json.py
+// DO NOT EDIT
+{
+  "fs_files": [
+    "lib/internal/fs/cp/cp-sync.js",
+    "lib/internal/fs/cp/cp.js",
+    "lib/internal/fs/dir.js",
+    "lib/internal/fs/promises.js",
+    "lib/internal/fs/read/context.js",
+    "lib/internal/fs/recursive_watch.js",
+    "lib/internal/fs/rimraf.js",
+    "lib/internal/fs/streams.js",
+    "lib/internal/fs/sync_write_stream.js",
+    "lib/internal/fs/utils.js",
+    "lib/internal/fs/watchers.js",
+    "lib/fs.js"
+  ],
+  "headers": [
+    {
+      "dest_dir": "include/node/",
+      "files": [
+        "src/js_native_api.h",
+        "src/js_native_api_types.h",
+        "src/node.h",
+        "src/node_api.h",
+        "src/node_api_types.h",
+        "src/node_buffer.h",
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+    "src/node_api.cc",
+    "src/node_binding.cc",
+    "src/node_blob.cc",
+    "src/node_buffer.cc",
+    "src/node_builtins.cc",
+    "src/node_config.cc",
+    "src/node_constants.cc",
+    "src/node_contextify.cc",
+    "src/node_credentials.cc",
+    "src/node_dir.cc",
+    "src/node_dotenv.cc",
+    "src/node_env_var.cc",
+    "src/node_errors.cc",
+    "src/node_external_reference.cc",
+    "src/node_file.cc",
+    "src/node_http_parser.cc",
+    "src/node_http2.cc",
+    "src/node_i18n.cc",
+    "src/node_main_instance.cc",
+    "src/node_messaging.cc",
+    "src/node_metadata.cc",
+    "src/node_options.cc",
+    "src/node_os.cc",
+    "src/node_perf.cc",
+    "src/node_platform.cc",
+    "src/node_postmortem_metadata.cc",
+    "src/node_process_events.cc",
+    "src/node_process_methods.cc",
+    "src/node_process_object.cc",
+    "src/node_realm.cc",
+    "src/node_report.cc",
+    "src/node_report_module.cc",
+    "src/node_report_utils.cc",
+    "src/node_sea.cc",
+    "src/node_serdes.cc",
+    "src/node_shadow_realm.cc",
+    "src/node_snapshotable.cc",
+    "src/node_sockaddr.cc",
+    "src/node_stat_watcher.cc",
+    "src/node_symbols.cc",
+    "src/node_task_queue.cc",
+    "src/node_trace_events.cc",
+    "src/node_types.cc",
+    "src/node_url.cc",
+    "src/node_util.cc",
+    "src/node_v8.cc",
+    "src/node_wasi.cc",
+    "src/node_wasm_web_api.cc",
+    "src/node_watchdog.cc",
+    "src/node_worker.cc",
+    "src/node_zlib.cc",
+    "src/permission/child_process_permission.cc",
+    "src/permission/fs_permission.cc",
+    "src/permission/inspector_permission.cc",
+    "src/permission/permission.cc",
+    "src/permission/worker_permission.cc",
+    "src/pipe_wrap.cc",
+    "src/process_wrap.cc",
+    "src/signal_wrap.cc",
+    "src/spawn_sync.cc",
+    "src/stream_base.cc",
+    "src/stream_pipe.cc",
+    "src/stream_wrap.cc",
+    "src/string_bytes.cc",
+    "src/string_decoder.cc",
+    "src/tcp_wrap.cc",
+    "src/timers.cc",
+    "src/timer_wrap.cc",
+    "src/tracing/agent.cc",
+    "src/tracing/node_trace_buffer.cc",
+    "src/tracing/node_trace_writer.cc",
+    "src/tracing/trace_event.cc",
+    "src/tracing/traced_value.cc",
+    "src/tty_wrap.cc",
+    "src/udp_wrap.cc",
+    "src/util.cc",
+    "src/uv.cc",
+    "src/aliased_buffer.h",
+    "src/aliased_buffer-inl.h",
+    "src/aliased_struct.h",
+    "src/aliased_struct-inl.h",
+    "src/async_wrap.h",
+    "src/async_wrap-inl.h",
+    "src/base_object.h",
+    "src/base_object-inl.h",
+    "src/base_object_types.h",
+    "src/base64.h",
+    "src/base64-inl.h",
+    "src/blob_serializer_deserializer.h",
+    "src/blob_serializer_deserializer-inl.h",
+    "src/callback_queue.h",
+    "src/callback_queue-inl.h",
+    "src/cleanup_queue.h",
+    "src/cleanup_queue-inl.h",
+    "src/connect_wrap.h",
+    "src/connection_wrap.h",
+    "src/dataqueue/queue.h",
+    "src/debug_utils.h",
+    "src/debug_utils-inl.h",
+    "src/encoding_binding.h",
+    "src/env_properties.h",
+    "src/env.h",
+    "src/env-inl.h",
+    "src/handle_wrap.h",
+    "src/histogram.h",
+    "src/histogram-inl.h",
+    "src/js_stream.h",
+    "src/json_utils.h",
+    "src/large_pages/node_large_page.cc",
+    "src/large_pages/node_large_page.h",
+    "src/memory_tracker.h",
+    "src/memory_tracker-inl.h",
+    "src/module_wrap.h",
+    "src/node.h",
+    "src/node_api.h",
+    "src/node_api_types.h",
+    "src/node_binding.h",
+    "src/node_blob.h",
+    "src/node_buffer.h",
+    "src/node_builtins.h",
+    "src/node_constants.h",
+    "src/node_context_data.h",
+    "src/node_contextify.h",
+    "src/node_dir.h",
+    "src/node_dotenv.h",
+    "src/node_errors.h",
+    "src/node_exit_code.h",
+    "src/node_external_reference.h",
+    "src/node_file.h",
+    "src/node_file-inl.h",
+    "src/node_http_common.h",
+    "src/node_http_common-inl.h",
+    "src/node_http2.h",
+    "src/node_http2_state.h",
+    "src/node_i18n.h",
+    "src/node_internals.h",
+    "src/node_main_instance.h",
+    "src/node_mem.h",
+    "src/node_mem-inl.h",
+    "src/node_messaging.h",
+    "src/node_metadata.h",
+    "src/node_mutex.h",
+    "src/node_object_wrap.h",
+    "src/node_options.h",
+    "src/node_options-inl.h",
+    "src/node_perf.h",
+    "src/node_perf_common.h",
+    "src/node_platform.h",
+    "src/node_process.h",
+    "src/node_process-inl.h",
+    "src/node_realm.h",
+    "src/node_realm-inl.h",
+    "src/node_report.h",
+    "src/node_revert.h",
+    "src/node_root_certs.h",
+    "src/node_sea.h",
+    "src/node_shadow_realm.h",
+    "src/node_snapshotable.h",
+    "src/node_snapshot_builder.h",
+    "src/node_sockaddr.h",
+    "src/node_sockaddr-inl.h",
+    "src/node_stat_watcher.h",
+    "src/node_union_bytes.h",
+    "src/node_url.h",
+    "src/node_version.h",
+    "src/node_v8.h",
+    "src/node_v8_platform-inl.h",
+    "src/node_wasi.h",
+    "src/node_watchdog.h",
+    "src/node_worker.h",
+    "src/permission/child_process_permission.h",
+    "src/permission/fs_permission.h",
+    "src/permission/inspector_permission.h",
+    "src/permission/permission.h",
+    "src/permission/worker_permission.h",
+    "src/pipe_wrap.h",
+    "src/req_wrap.h",
+    "src/req_wrap-inl.h",
+    "src/spawn_sync.h",
+    "src/stream_base.h",
+    "src/stream_base-inl.h",
+    "src/stream_pipe.h",
+    "src/stream_wrap.h",
+    "src/string_bytes.h",
+    "src/string_decoder.h",
+    "src/string_decoder-inl.h",
+    "src/string_search.h",
+    "src/tcp_wrap.h",
+    "src/timers.h",
+    "src/tracing/agent.h",
+    "src/tracing/node_trace_buffer.h",
+    "src/tracing/node_trace_writer.h",
+    "src/tracing/trace_event.h",
+    "src/tracing/trace_event_common.h",
+    "src/tracing/traced_value.h",
+    "src/timer_wrap.h",
+    "src/timer_wrap-inl.h",
+    "src/tty_wrap.h",
+    "src/udp_wrap.h",
+    "src/util.h",
+    "src/util-inl.h",
+    "//v8/include/v8.h",
+    "deps/postject/postject-api.h"
+  ]
+}
diff --git a/src/inspector/BUILD.gn b/src/inspector/BUILD.gn
index 909fd14345fcd988c381e640280f4b33f2e0c351..cb0e4558436ab7a109cadf439d49413b0f569a5a 100644
--- a/src/inspector/BUILD.gn
+++ b/src/inspector/BUILD.gn
@@ -1,14 +1,203 @@
-##############################################################################
-#                                                                            #
-#                       DO NOT EDIT THIS FILE!                               #
-#                                                                            #
-##############################################################################
+import("//v8/gni/v8.gni")
 
-# This file is used by GN for building, which is NOT the build system used for
-# building official binaries.
-# Please modify the gyp files if you are making changes to build system.
+inspector_protocol_dir = "../../tools/inspector_protocol"
 
-import("unofficial.gni")
+_protocol_generated = [
+  "protocol/Forward.h",
+  "protocol/Protocol.cpp",
+  "protocol/Protocol.h",
+  "protocol/NodeWorker.cpp",
+  "protocol/NodeWorker.h",
+  "protocol/NodeTracing.cpp",
+  "protocol/NodeTracing.h",
+  "protocol/NodeRuntime.cpp",
+  "protocol/NodeRuntime.h",
+]
 
-inspector_gn_build("inspector") {
+# These are from node_protocol_config.json
+# These convoluted path hacks are to work around the fact that node.js is very
+# confused about what paths are in its includes, without changing node at all.
+# Hopefully, keying everything in this file off the paths that are in
+# node_protocol_config.json will mean that the paths stay in sync.
+inspector_protocol_package = "src/node/inspector/protocol"
+inspector_protocol_output = "node/inspector/protocol"
+
+config("inspector_config") {
+  include_dirs = [
+    "$target_gen_dir",
+    "$target_gen_dir/src",
+  ]
+
+  configs = [ "../..:node_features" ]
+}
+
+source_set("inspector") {
+  sources = [
+    "main_thread_interface.cc",
+    "main_thread_interface.h",
+    "node_string.cc",
+    "node_string.h",
+    "runtime_agent.cc",
+    "runtime_agent.h",
+    "tracing_agent.cc",
+    "tracing_agent.h",
+    "worker_agent.cc",
+    "worker_agent.h",
+    "worker_inspector.cc",
+    "worker_inspector.h",
+  ]
+  sources += rebase_path(_protocol_generated,
+                         ".",
+                         "$target_gen_dir/$inspector_protocol_package/..")
+  include_dirs = [
+    "//v8/include",
+    "..",
+  ]
+  deps = [
+    ":protocol_generated_sources",
+    ":v8_inspector_compress_protocol_json",
+    "../../deps/uv",
+    "../../deps/simdutf",
+    "//third_party/icu:icuuc",
+  ]
+  configs += [
+    "../..:node_internal_config",
+    "../..:node_lib_config",
+  ]
+  public_configs = [ ":inspector_config" ]
+}
+
+# This based on the template from //v8/../inspector_protocol.gni
+action("protocol_generated_sources") {
+  # This is to ensure that the output directory exists--the code generator
+  # doesn't create it.
+  write_file("$target_gen_dir/$inspector_protocol_package/.dummy", "")
+  script = "$inspector_protocol_dir/code_generator.py"
+
+  inputs = [
+    "$target_gen_dir/node_protocol_config.json",
+    "$target_gen_dir/src/node_protocol.json",
+    "$inspector_protocol_dir/lib/base_string_adapter_cc.template",
+    "$inspector_protocol_dir/lib/base_string_adapter_h.template",
+    "$inspector_protocol_dir/lib/Allocator_h.template",
+    "$inspector_protocol_dir/lib/Array_h.template",
+    "$inspector_protocol_dir/lib/DispatcherBase_cpp.template",
+    "$inspector_protocol_dir/lib/DispatcherBase_h.template",
+    "$inspector_protocol_dir/lib/ErrorSupport_cpp.template",
+    "$inspector_protocol_dir/lib/ErrorSupport_h.template",
+    "$inspector_protocol_dir/lib/Forward_h.template",
+    "$inspector_protocol_dir/lib/FrontendChannel_h.template",
+    "$inspector_protocol_dir/lib/Maybe_h.template",
+    "$inspector_protocol_dir/lib/Object_cpp.template",
+    "$inspector_protocol_dir/lib/Object_h.template",
+    "$inspector_protocol_dir/lib/Parser_cpp.template",
+    "$inspector_protocol_dir/lib/Parser_h.template",
+    "$inspector_protocol_dir/lib/Protocol_cpp.template",
+    "$inspector_protocol_dir/lib/ValueConversions_h.template",
+    "$inspector_protocol_dir/lib/Values_cpp.template",
+    "$inspector_protocol_dir/lib/Values_h.template",
+    "$inspector_protocol_dir/templates/Exported_h.template",
+    "$inspector_protocol_dir/templates/Imported_h.template",
+    "$inspector_protocol_dir/templates/TypeBuilder_cpp.template",
+    "$inspector_protocol_dir/templates/TypeBuilder_h.template",
+  ]
+
+  deps = [
+    ":node_protocol_config",
+    ":node_protocol_json",
+  ]
+
+  args = [
+    "--jinja_dir",
+    rebase_path("//third_party/", root_build_dir),  # jinja is in chromium's third_party
+    "--output_base",
+    rebase_path("$target_gen_dir/src", root_build_dir),
+    "--config",
+    rebase_path("$target_gen_dir/node_protocol_config.json", root_build_dir),
+  ]
+
+  outputs =
+      get_path_info(rebase_path(rebase_path(_protocol_generated,
+                                            ".",
+                                            "$inspector_protocol_output/.."),
+                                ".",
+                                "$target_gen_dir/src"),
+                    "abspath")
+}
+
+template("generate_protocol_json") {
+  copy_target_name = target_name + "_copy"
+  copy(copy_target_name) {
+    sources = invoker.sources
+    outputs = [
+      "$target_gen_dir/{{source_file_part}}",
+    ]
+  }
+  copied_pdl = get_target_outputs(":$copy_target_name")
+  action(target_name) {
+    deps = [
+      ":$copy_target_name",
+    ]
+    sources = copied_pdl
+    outputs = invoker.outputs
+    script = "$inspector_protocol_dir/convert_protocol_to_json.py"
+    args = rebase_path(sources + outputs, root_build_dir)
+  }
+}
+
+copy("node_protocol_config") {
+  sources = [
+    "node_protocol_config.json",
+  ]
+  outputs = [
+    "$target_gen_dir/{{source_file_part}}",
+  ]
+}
+
+generate_protocol_json("node_protocol_json") {
+  sources = [
+    "node_protocol.pdl",
+  ]
+  outputs = [
+    "$target_gen_dir/src/node_protocol.json",
+  ]
+}
+
+generate_protocol_json("v8_protocol_json") {
+  sources = [
+    "//v8/include/js_protocol.pdl",
+  ]
+  outputs = [
+    "$target_gen_dir/js_protocol.json",
+  ]
+}
+
+action("concatenate_protocols") {
+  deps = [
+    ":node_protocol_json",
+    ":v8_protocol_json",
+  ]
+  inputs = [
+    "$target_gen_dir/js_protocol.json",
+    "$target_gen_dir/src/node_protocol.json",
+  ]
+  outputs = [
+    "$target_gen_dir/concatenated_protocol.json",
+  ]
+  script = "//v8/third_party/inspector_protocol/concatenate_protocols.py"
+  args = rebase_path(inputs + outputs, root_build_dir)
+}
+
+action("v8_inspector_compress_protocol_json") {
+  deps = [
+    ":concatenate_protocols",
+  ]
+  inputs = [
+    "$target_gen_dir/concatenated_protocol.json",
+  ]
+  outputs = [
+    "$target_gen_dir/v8_inspector_protocol_json.h",
+  ]
+  script = "../../tools/compress_json.py"
+  args = rebase_path(inputs + outputs, root_build_dir)
 }
diff --git a/src/node_builtins.cc b/src/node_builtins.cc
index bafd8d4b8581f0aee6cb1f30b810c8dfc46c2ce9..453d874efff767a95ef25fad7005ac11717f0c67 100644
--- a/src/node_builtins.cc
+++ b/src/node_builtins.cc
@@ -739,6 +739,7 @@ void BuiltinLoader::RegisterExternalReferences(
   registry->Register(GetNatives);
 
   RegisterExternalReferencesForInternalizedBuiltinCode(registry);
+  EmbedderRegisterExternalReferencesForInternalizedBuiltinCode(registry);
 }
 
 }  // namespace builtins
diff --git a/src/node_builtins.h b/src/node_builtins.h
index 9f2fbc1e53937448aa27c1f5fe110eabc7edc0df..ea77c7598153bb8a9ba20c89a4ece2c1580b9a25 100644
--- a/src/node_builtins.h
+++ b/src/node_builtins.h
@@ -74,6 +74,8 @@ using BuiltinCodeCacheMap =
 // Generated by tools/js2c.py as node_javascript.cc
 void RegisterExternalReferencesForInternalizedBuiltinCode(
     ExternalReferenceRegistry* registry);
+void EmbedderRegisterExternalReferencesForInternalizedBuiltinCode(
+    ExternalReferenceRegistry* registry);
 
 // Handles compilation and caching of built-in JavaScript modules and
 // bootstrap scripts, whose source are bundled into the binary as static data.
diff --git a/tools/generate_gn_filenames_json.py b/tools/generate_gn_filenames_json.py
new file mode 100755
index 0000000000000000000000000000000000000000..7848ddb1841b6d4f36e9376c73564eb4ff6d7c08
--- /dev/null
+++ b/tools/generate_gn_filenames_json.py
@@ -0,0 +1,90 @@
+#!/usr/bin/env python3
+import json
+import os
+import sys
+
+import install
+
+from utils import SearchFiles
+
+def LoadPythonDictionary(path):
+  file_string = open(path).read()
+  try:
+    file_data = eval(file_string, {'__builtins__': None}, None)
+  except SyntaxError as e:
+    e.filename = path
+    raise
+  except Exception as e:
+    raise Exception("Unexpected error while reading %s: %s" % (path, str(e)))
+
+  assert isinstance(file_data, dict), "%s does not eval to a dictionary" % path
+
+  return file_data
+
+
+FILENAMES_JSON_HEADER = '''
+// This file is automatically generated by generate_gn_filenames_json.py
+// DO NOT EDIT
+'''.lstrip()
+
+
+if __name__ == '__main__':
+  node_root_dir = os.path.dirname(os.path.dirname(__file__))
+  node_gyp_path = os.path.join(node_root_dir, 'node.gyp')
+  out = {}
+  node_gyp = LoadPythonDictionary(node_gyp_path)
+  node_lib_target = next(
+      t for t in node_gyp['targets']
+      if t['target_name'] == '<(node_lib_target_name)')
+  node_source_blocklist = {
+      '<@(library_files)',
+      '<@(deps_files)',
+      '<@(node_sources)',
+      'common.gypi',
+      '<(SHARED_INTERMEDIATE_DIR)/node_javascript.cc',
+  }
+
+  def filter_v8_files(files):
+    if any(f.startswith('deps/v8/') for f in files):
+      files = [f.replace('deps/v8/', '../../v8/', 1) if f.endswith('js') else f.replace('deps/v8/', '//v8/') for f in files]
+
+    if any(f == '<@(node_builtin_shareable_builtins)' for f in files):
+      files.remove('<@(node_builtin_shareable_builtins)')
+      shared_builtins = ['deps/cjs-module-lexer/lexer.js', 'deps/cjs-module-lexer/dist/lexer.js', 'deps/undici/undici.js']
+      files.extend(shared_builtins)
+
+    return files
+
+  def filter_fs_files(files):
+    return [f for f in files if f.startswith('lib/internal/fs/')] + ['lib/fs.js']
+
+  lib_files = SearchFiles('lib', 'js')
+  out['library_files'] = filter_v8_files(lib_files)
+  out['library_files'] += filter_v8_files(node_gyp['variables']['deps_files'])
+  out['node_sources'] = node_gyp['variables']['node_sources']
+
+  out['fs_files'] = filter_fs_files(out['library_files'])
+  # fs files are handled separately
+  out['library_files'] = [f for f in out['library_files'] if f not in out['fs_files']]
+
+  blocklisted_sources = [
+      f for f in node_lib_target['sources']
+      if f not in node_source_blocklist]
+  out['node_sources'] += filter_v8_files(blocklisted_sources)
+
+  out['headers'] = []
+  def add_headers(files, dest_dir):
+    if 'src/node.h' in files:
+      files = [f for f in files if f.endswith('.h') and f != 'src/node_version.h']
+    elif any(f.startswith('../../v8/') for f in files):
+      files = [f.replace('../../v8/', '//v8/', 1) for f in files]
+    if files:
+      hs = {'files': sorted(files), 'dest_dir': dest_dir}
+      out['headers'].append(hs)
+
+  install.variables = {'node_shared_libuv': 'false'}
+  install.headers(add_headers)
+  with open(os.path.join(node_root_dir, 'filenames.json'), 'w') as f:
+    f.write(FILENAMES_JSON_HEADER)
+    f.write(json.dumps(out, sort_keys=True, indent=2, separators=(',', ': ')))
+    f.write('\n')
diff --git a/tools/generate_original_fs.py b/tools/generate_original_fs.py
new file mode 100644
index 0000000000000000000000000000000000000000..a6cdf33f2c0bcca4d7b4eacaa407f1ac5bdcb5cb
--- /dev/null
+++ b/tools/generate_original_fs.py
@@ -0,0 +1,19 @@
+import os
+import sys
+
+node_root_dir = os.path.dirname(os.path.dirname(os.path.realpath(__file__)))
+out_dir = sys.argv[1]
+fs_files = sys.argv[2:]
+
+for fs_file in fs_files:
+  with open(os.path.join(node_root_dir, fs_file), 'r') as f:
+    contents = f.read()
+    original_fs_file = fs_file.replace('internal/fs/', 'internal/original-fs/').replace('lib/fs.js', 'lib/original-fs.js')
+
+    with open(os.path.join(out_dir, fs_file), 'w') as original_f:
+      original_f.write(contents)
+
+    with open(os.path.join(out_dir, original_fs_file), 'w') as transformed_f:
+      transformed_contents = contents.replace('internal/fs/', 'internal/original-fs/').replace('require(\'fs', 'require(\'original-fs')
+      transformed_f.write(transformed_contents)
+
diff --git a/tools/install.py b/tools/install.py
index 11616e1bcac5308020eb68fdb811bfb86cb14dd5..74b01f8352021f1105c080dbbf8bb29121a13501 100755
--- a/tools/install.py
+++ b/tools/install.py
@@ -199,105 +199,108 @@ def headers(action):
     v8_headers = [
       # The internal cppgc headers are depended on by the public
       # ones, so they need to be included as well.
-      'deps/v8/include/cppgc/internal/api-constants.h',
-      'deps/v8/include/cppgc/internal/atomic-entry-flag.h',
-      'deps/v8/include/cppgc/internal/base-page-handle.h',
-      'deps/v8/include/cppgc/internal/caged-heap-local-data.h',
-      'deps/v8/include/cppgc/internal/caged-heap.h',
-      'deps/v8/include/cppgc/internal/compiler-specific.h',
-      'deps/v8/include/cppgc/internal/finalizer-trait.h',
-      'deps/v8/include/cppgc/internal/gc-info.h',
-      'deps/v8/include/cppgc/internal/logging.h',
-      'deps/v8/include/cppgc/internal/member-storage.h',
-      'deps/v8/include/cppgc/internal/name-trait.h',
-      'deps/v8/include/cppgc/internal/persistent-node.h',
-      'deps/v8/include/cppgc/internal/pointer-policies.h',
-      'deps/v8/include/cppgc/internal/write-barrier.h',
+      '../../v8/include/cppgc/internal/api-constants.h',
+      '../../v8/include/cppgc/internal/atomic-entry-flag.h',
+      '../../v8/include/cppgc/internal/base-page-handle.h',
+      '../../v8/include/cppgc/internal/caged-heap-local-data.h',
+      '../../v8/include/cppgc/internal/caged-heap.h',
+      '../../v8/include/cppgc/internal/compiler-specific.h',
+      '../../v8/include/cppgc/internal/finalizer-trait.h',
+      '../../v8/include/cppgc/internal/gc-info.h',
+      '../../v8/include/cppgc/internal/logging.h',
+      '../../v8/include/cppgc/internal/member-storage.h',
+      '../../v8/include/cppgc/internal/name-trait.h',
+      '../../v8/include/cppgc/internal/persistent-node.h',
+      '../../v8/include/cppgc/internal/pointer-policies.h',
+      '../../v8/include/cppgc/internal/write-barrier.h',
       # cppgc headers
-      'deps/v8/include/cppgc/allocation.h',
-      'deps/v8/include/cppgc/common.h',
-      'deps/v8/include/cppgc/cross-thread-persistent.h',
-      'deps/v8/include/cppgc/custom-space.h',
-      'deps/v8/include/cppgc/default-platform.h',
-      'deps/v8/include/cppgc/ephemeron-pair.h',
-      'deps/v8/include/cppgc/explicit-management.h',
-      'deps/v8/include/cppgc/garbage-collected.h',
-      'deps/v8/include/cppgc/heap-consistency.h',
-      'deps/v8/include/cppgc/heap-handle.h',
-      'deps/v8/include/cppgc/heap-state.h',
-      'deps/v8/include/cppgc/heap-statistics.h',
-      'deps/v8/include/cppgc/heap.h',
-      'deps/v8/include/cppgc/liveness-broker.h',
-      'deps/v8/include/cppgc/macros.h',
-      'deps/v8/include/cppgc/member.h',
-      'deps/v8/include/cppgc/name-provider.h',
-      'deps/v8/include/cppgc/object-size-trait.h',
-      'deps/v8/include/cppgc/persistent.h',
-      'deps/v8/include/cppgc/platform.h',
-      'deps/v8/include/cppgc/prefinalizer.h',
-      'deps/v8/include/cppgc/process-heap-statistics.h',
-      'deps/v8/include/cppgc/sentinel-pointer.h',
-      'deps/v8/include/cppgc/source-location.h',
-      'deps/v8/include/cppgc/testing.h',
-      'deps/v8/include/cppgc/trace-trait.h',
-      'deps/v8/include/cppgc/type-traits.h',
-      'deps/v8/include/cppgc/visitor.h',
+      '../../v8/include/cppgc/allocation.h',
+      '../../v8/include/cppgc/common.h',
+      '../../v8/include/cppgc/cross-thread-persistent.h',
+      '../../v8/include/cppgc/custom-space.h',
+      '../../v8/include/cppgc/default-platform.h',
+      '../../v8/include/cppgc/ephemeron-pair.h',
+      '../../v8/include/cppgc/explicit-management.h',
+      '../../v8/include/cppgc/garbage-collected.h',
+      '../../v8/include/cppgc/heap-consistency.h',
+      '../../v8/include/cppgc/heap-handle.h',
+      '../../v8/include/cppgc/heap-state.h',
+      '../../v8/include/cppgc/heap-statistics.h',
+      '../../v8/include/cppgc/heap.h',
+      '../../v8/include/cppgc/liveness-broker.h',
+      '../../v8/include/cppgc/macros.h',
+      '../../v8/include/cppgc/member.h',
+      '../../v8/include/cppgc/name-provider.h',
+      '../../v8/include/cppgc/object-size-trait.h',
+      '../../v8/include/cppgc/persistent.h',
+      '../../v8/include/cppgc/platform.h',
+      '../../v8/include/cppgc/prefinalizer.h',
+      '../../v8/include/cppgc/process-heap-statistics.h',
+      '../../v8/include/cppgc/sentinel-pointer.h',
+      '../../v8/include/cppgc/source-location.h',
+      '../../v8/include/cppgc/testing.h',
+      '../../v8/include/cppgc/trace-trait.h',
+      '../../v8/include/cppgc/type-traits.h',
+      '../../v8/include/cppgc/visitor.h',
       # libplatform headers
-      'deps/v8/include/libplatform/libplatform-export.h',
-      'deps/v8/include/libplatform/libplatform.h',
-      'deps/v8/include/libplatform/v8-tracing.h',
+      '../../v8/include/libplatform/libplatform-export.h',
+      '../../v8/include/libplatform/libplatform.h',
+      '../../v8/include/libplatform/v8-tracing.h',
       # v8 headers
-      'deps/v8/include/v8-array-buffer.h',
-      'deps/v8/include/v8-callbacks.h',
-      'deps/v8/include/v8-container.h',
-      'deps/v8/include/v8-context.h',
-      'deps/v8/include/v8-cppgc.h',
-      'deps/v8/include/v8-data.h',
-      'deps/v8/include/v8-date.h',
-      'deps/v8/include/v8-debug.h',
-      'deps/v8/include/v8-embedder-heap.h',
-      'deps/v8/include/v8-embedder-state-scope.h',
-      'deps/v8/include/v8-exception.h',
-      'deps/v8/include/v8-extension.h',
-      'deps/v8/include/v8-external.h',
-      'deps/v8/include/v8-forward.h',
-      'deps/v8/include/v8-function-callback.h',
-      'deps/v8/include/v8-function.h',
-      'deps/v8/include/v8-initialization.h',
-      'deps/v8/include/v8-internal.h',
-      'deps/v8/include/v8-isolate.h',
-      'deps/v8/include/v8-json.h',
-      'deps/v8/include/v8-local-handle.h',
-      'deps/v8/include/v8-locker.h',
-      'deps/v8/include/v8-maybe.h',
-      'deps/v8/include/v8-memory-span.h',
-      'deps/v8/include/v8-message.h',
-      'deps/v8/include/v8-microtask-queue.h',
-      'deps/v8/include/v8-microtask.h',
-      'deps/v8/include/v8-object.h',
-      'deps/v8/include/v8-persistent-handle.h',
-      'deps/v8/include/v8-platform.h',
-      'deps/v8/include/v8-primitive-object.h',
-      'deps/v8/include/v8-primitive.h',
-      'deps/v8/include/v8-profiler.h',
-      'deps/v8/include/v8-promise.h',
-      'deps/v8/include/v8-proxy.h',
-      'deps/v8/include/v8-regexp.h',
-      'deps/v8/include/v8-script.h',
-      'deps/v8/include/v8-snapshot.h',
-      'deps/v8/include/v8-statistics.h',
-      'deps/v8/include/v8-template.h',
-      'deps/v8/include/v8-traced-handle.h',
-      'deps/v8/include/v8-typed-array.h',
-      'deps/v8/include/v8-unwinder.h',
-      'deps/v8/include/v8-value-serializer.h',
-      'deps/v8/include/v8-value.h',
-      'deps/v8/include/v8-version.h',
-      'deps/v8/include/v8-wasm.h',
-      'deps/v8/include/v8-weak-callback-info.h',
-      'deps/v8/include/v8.h',
-      'deps/v8/include/v8config.h',
+      '../../v8/include/v8-array-buffer.h',
+      '../../v8/include/v8-callbacks.h',
+      '../../v8/include/v8-container.h',
+      '../../v8/include/v8-context.h',
+      '../../v8/include/v8-cppgc.h',
+      '../../v8/include/v8-data.h',
+      '../../v8/include/v8-date.h',
+      '../../v8/include/v8-debug.h',
+      '../../v8/include/v8-embedder-heap.h',
+      '../../v8/include/v8-embedder-state-scope.h',
+      '../../v8/include/v8-exception.h',
+      '../../v8/include/v8-extension.h',
+      '../../v8/include/v8-external.h',
+      '../../v8/include/v8-forward.h',
+      '../../v8/include/v8-function-callback.h',
+      '../../v8/include/v8-function.h',
+      '../../v8/include/v8-handle-base.h',
+      '../../v8/include/v8-initialization.h',
+      '../../v8/include/v8-internal.h',
+      '../../v8/include/v8-isolate.h',
+      '../../v8/include/v8-json.h',
+      '../../v8/include/v8-local-handle.h',
+      '../../v8/include/v8-locker.h',
+      '../../v8/include/v8-maybe.h',
+      '../../v8/include/v8-memory-span.h',
+      '../../v8/include/v8-message.h',
+      '../../v8/include/v8-microtask-queue.h',
+      '../../v8/include/v8-microtask.h',
+      '../../v8/include/v8-object.h',
+      '../../v8/include/v8-persistent-handle.h',
+      '../../v8/include/v8-platform.h',
+      '../../v8/include/v8-primitive-object.h',
+      '../../v8/include/v8-primitive.h',
+      '../../v8/include/v8-profiler.h',
+      '../../v8/include/v8-promise.h',
+      '../../v8/include/v8-proxy.h',
+      '../../v8/include/v8-regexp.h',
+      '../../v8/include/v8-script.h',
+      '../../v8/include/v8-snapshot.h',
+      '../../v8/include/v8-source-location.h',
+      '../../v8/include/v8-statistics.h',
+      '../../v8/include/v8-template.h',
+      '../../v8/include/v8-traced-handle.h',
+      '../../v8/include/v8-typed-array.h',
+      '../../v8/include/v8-unwinder.h',
+      '../../v8/include/v8-value-serializer.h',
+      '../../v8/include/v8-value.h',
+      '../../v8/include/v8-version.h',
+      '../../v8/include/v8-wasm.h',
+      '../../v8/include/v8-weak-callback-info.h',
+      '../../v8/include/v8.h',
+      '../../v8/include/v8config.h',
     ]
+    v8_headers = [h.replace('deps/', '../../') for h in v8_headers]
     files_arg = [name for name in files_arg if name in v8_headers]
     action(files_arg, dest)
 
@@ -324,7 +327,7 @@ def headers(action):
   if sys.platform.startswith('aix') or sys.platform == "os400":
     action(['out/Release/node.exp'], 'include/node/')
 
-  subdir_files('deps/v8/include', 'include/node/', wanted_v8_headers)
+  subdir_files('../../v8/include', 'include/node/', wanted_v8_headers)
 
   if 'false' == variables.get('node_shared_libuv'):
     subdir_files('deps/uv/include', 'include/node/', action)
diff --git a/tools/js2c.cc b/tools/js2c.cc
old mode 100644
new mode 100755
index 904fb6fa44d4f56fb67476e937edcbb797d78fe7..129cd4b2c12b58464fbab8355afa0c26721d1413
--- a/tools/js2c.cc
+++ b/tools/js2c.cc
@@ -29,6 +29,7 @@ namespace js2c {
 int Main(int argc, char* argv[]);
 
 static bool is_verbose = false;
+static bool only_js = false;
 
 void Debug(const char* format, ...) {
   va_list arguments;
@@ -195,6 +196,7 @@ const char* kTemplate = R"(
 #include "node_builtins.h"
 #include "node_external_reference.h"
 #include "node_internals.h"
+#include "node_threadsafe_cow-inl.h"
 
 namespace node {
 
@@ -210,7 +212,11 @@ const ThreadsafeCopyOnWrite<BuiltinSourceMap> global_source_map {
 }  // anonymous namespace
 
 void BuiltinLoader::LoadJavaScriptSource() {
-  source_ = global_source_map;
+  BuiltinSourceMap map = *source_.read();
+  BuiltinSourceMap new_map = *global_source_map.read();
+
+  map.merge(new_map);
+  source_ = ThreadsafeCopyOnWrite<BuiltinSourceMap>(map);
 }
 
 void RegisterExternalReferencesForInternalizedBuiltinCode(
@@ -227,6 +233,45 @@ UnionBytes BuiltinLoader::GetConfig() {
 }  // namespace node
 )";
 
+const char* kEmbedderTemplate = R"(
+#include "env-inl.h"
+#include "node_builtins.h"
+#include "node_external_reference.h"
+#include "node_internals.h"
+#include "node_threadsafe_cow-inl.h"
+
+namespace node {
+
+namespace builtins {
+
+%.*s
+namespace {
+const ThreadsafeCopyOnWrite<BuiltinSourceMap> global_source_map {
+  BuiltinSourceMap {
+%.*s
+  }  // BuiltinSourceMap
+
+};  // ThreadsafeCopyOnWrite
+}  // anonymous namespace
+
+void BuiltinLoader::LoadEmbedderJavaScriptSource() {
+  BuiltinSourceMap map = *source_.read();
+  BuiltinSourceMap new_map = *global_source_map.read();
+
+  map.merge(new_map);
+  source_ = ThreadsafeCopyOnWrite<BuiltinSourceMap>(map);
+}
+
+void EmbedderRegisterExternalReferencesForInternalizedBuiltinCode(
+  ExternalReferenceRegistry* registry) {
+%.*s
+}
+
+}  // namespace builtins
+
+}  // namespace node
+)";
+
 Fragment Format(const Fragments& definitions,
                 const Fragments& initializers,
                 const Fragments& registrations) {
@@ -236,13 +281,12 @@ Fragment Format(const Fragments& definitions,
   size_t init_size = init_buf.size();
   std::vector<char> reg_buf = Join(registrations, "\n");
   size_t reg_size = reg_buf.size();
-
-  size_t result_size =
-      def_size + init_size + reg_size + strlen(kTemplate) + 100;
+  size_t result_size = def_size + init_size + reg_size +
+          strlen(only_js ? kEmbedderTemplate: kTemplate) + 300;
   std::vector<char> result(result_size, 0);
   int r = snprintf(result.data(),
                    result_size,
-                   kTemplate,
+                   only_js ? kEmbedderTemplate: kTemplate,
                    static_cast<int>(def_buf.size()),
                    def_buf.data(),
                    static_cast<int>(init_buf.size()),
@@ -711,12 +755,15 @@ int JS2C(const FileList& js_files,
     }
   }
 
+  if (!only_js) {
   assert(FilenameIsConfigGypi(config));
   // "config.gypi" -> config_raw.
   int r = AddGypi("config", config, &definitions);
   if (r != 0) {
     return r;
   }
+  }
+
   Fragment out = Format(definitions, initializers, registrations);
   return WriteIfChanged(out, dest);
 }
@@ -742,6 +789,8 @@ int Main(int argc, char* argv[]) {
     std::string arg(argv[i]);
     if (arg == "--verbose") {
       is_verbose = true;
+    } else if (arg == "--only-js") {
+      only_js = true;
     } else if (arg == "--root") {
       if (i == argc - 1) {
         fprintf(stderr, "--root must be followed by a path\n");
@@ -790,6 +839,14 @@ int Main(int argc, char* argv[]) {
     }
   }
 
+  if (only_js) {
+    auto js_it = file_map.find(".js");
+
+    assert(file_map.size() == 1);
+    assert(js_it != file_map.end());
+
+    return JS2C(js_it->second, FileList(), std::string(), output);
+  } else {
   // Should have exactly 3 types: `.js`, `.mjs` and `.gypi`.
   assert(file_map.size() == 3);
   auto gypi_it = file_map.find(".gypi");
@@ -809,6 +866,7 @@ int Main(int argc, char* argv[]) {
   std::sort(mjs_it->second.begin(), mjs_it->second.end());
 
   return JS2C(js_it->second, mjs_it->second, gypi_it->second[0], output);
+  }
 }
 }  // namespace js2c
 }  // namespace node
@@ -817,4 +875,4 @@ NODE_MAIN(int argc, node::argv_type raw_argv[]) {
   char** argv;
   node::FixupMain(argc, raw_argv, &argv);
   return node::js2c::Main(argc, argv);
-}
+}
\ No newline at end of file
