Bug 1773509 - Add an in-tree windows crate that wraps a bootstrapped windows-rs. r=firefox-build-system-reviewers,supply-chain-reviewers,ahochheiden

Differential Revision: https://phabricator.services.mozilla.com/D200104

Cargo.lock

@@ -2257,7 +2257,7 @@ dependencies = [
  "webext_storage_bridge",
  "webrender_bindings",
  "wgpu_bindings",
- "windows-core",
+ "windows",
  "wpf-gpu-raster",
  "xpcom",
 ]
@@ -6580,6 +6580,15 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
+[[package]]
+name = "windows"
+version = "0.52.0"
+dependencies = [
+ "mozbuild",
+ "windows-core",
+ "windows-targets 0.52.999",
+]
+
 [[package]]
 name = "windows-core"
 version = "0.52.0"

Cargo.toml

@@ -108,6 +108,9 @@ windows-targets_0_48 = { package = "windows-targets", path = "build/rust/windows
 # Patch windows-sys from 0.48.0 to 0.52.0
 windows-sys = { path = "build/rust/windows-sys" }
 
+# Patch windows to use a non-vendored local copy of the crate.
+windows = { path = "build/rust/windows" }
+
 # Dummy oslog replacement. It's only used by glean in code that is not actually used.
 oslog = { path = "build/rust/oslog" }
 

build/rust/mozbuild/generate_buildconfig.py

@@ -65,6 +65,26 @@ def generate(output):
         )
     )
 
+    windows_rs_dir = buildconfig.substs.get("MOZ_WINDOWS_RS_DIR")
+    if windows_rs_dir:
+        output.write(
+            textwrap.dedent(
+                f"""
+                /// Macro used to name a path in the srcdir for use with macros like `include!`
+                #[macro_export]
+                macro_rules! windows_rs_path {{
+                    ($path:literal) => {{
+                        concat!({escape_rust_string(windows_rs_dir + "/")}, $path)
+                    }}
+                }}
+
+                /// The path to the windows-rs crate, for use in build scripts
+                pub const WINDOWS_RS_DIR: &str = {escape_rust_string(windows_rs_dir)};
+
+                """
+            )
+        )
+
     # Finally, write out some useful booleans from the buildconfig.
     output.write(generate_bool("MOZ_FOLD_LIBS"))
     output.write(generate_bool("NIGHTLY_BUILD"))

build/rust/windows/Cargo.toml

@@ -0,0 +1,736 @@
+# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
+#
+# When uploading crates to the registry Cargo will automatically
+# "normalize" Cargo.toml files for maximal compatibility
+# with all versions of Cargo and also rewrite `path` dependencies
+# to registry (e.g., crates.io) dependencies.
+#
+# If you are reading this file be aware that the original Cargo.toml
+# will likely look very different (and much more reasonable).
+# See Cargo.toml.orig for the original contents.
+
+[package]
+edition = "2021"
+rust-version = "1.56"
+name = "windows"
+version = "0.52.0"
+authors = ["Microsoft"]
+description = "Rust for Windows"
+documentation = "https://microsoft.github.io/windows-docs-rs/"
+readme = "readme.md"
+categories = ["os::windows-apis"]
+license = "MIT OR Apache-2.0"
+repository = "https://github.com/microsoft/windows-rs"
+
+[package.metadata.docs.rs]
+default-target = "x86_64-pc-windows-msvc"
+rustdoc-args = [
+    "--cfg",
+    "docsrs",
+]
+targets = []
+
+[dependencies.windows-core]
+version = "0.52.0"
+
+[dependencies.windows-implement]
+version = "0.52.0"
+optional = true
+
+[dependencies.windows-interface]
+version = "0.52.0"
+optional = true
+
+[dependencies.windows-targets]
+version = "0.52.0"
+
+[features]
+AI = []
+AI_MachineLearning = ["AI"]
+ApplicationModel = []
+ApplicationModel_Activation = ["ApplicationModel"]
+ApplicationModel_AppExtensions = ["ApplicationModel"]
+ApplicationModel_AppService = ["ApplicationModel"]
+ApplicationModel_Appointments = ["ApplicationModel"]
+ApplicationModel_Appointments_AppointmentsProvider = ["ApplicationModel_Appointments"]
+ApplicationModel_Appointments_DataProvider = ["ApplicationModel_Appointments"]
+ApplicationModel_Background = ["ApplicationModel"]
+ApplicationModel_Calls = ["ApplicationModel"]
+ApplicationModel_Calls_Background = ["ApplicationModel_Calls"]
+ApplicationModel_Calls_Provider = ["ApplicationModel_Calls"]
+ApplicationModel_Chat = ["ApplicationModel"]
+ApplicationModel_CommunicationBlocking = ["ApplicationModel"]
+ApplicationModel_Contacts = ["ApplicationModel"]
+ApplicationModel_Contacts_DataProvider = ["ApplicationModel_Contacts"]
+ApplicationModel_Contacts_Provider = ["ApplicationModel_Contacts"]
+ApplicationModel_ConversationalAgent = ["ApplicationModel"]
+ApplicationModel_Core = ["ApplicationModel"]
+ApplicationModel_DataTransfer = ["ApplicationModel"]
+ApplicationModel_DataTransfer_DragDrop = ["ApplicationModel_DataTransfer"]
+ApplicationModel_DataTransfer_DragDrop_Core = ["ApplicationModel_DataTransfer_DragDrop"]
+ApplicationModel_DataTransfer_ShareTarget = ["ApplicationModel_DataTransfer"]
+ApplicationModel_Email = ["ApplicationModel"]
+ApplicationModel_Email_DataProvider = ["ApplicationModel_Email"]
+ApplicationModel_ExtendedExecution = ["ApplicationModel"]
+ApplicationModel_ExtendedExecution_Foreground = ["ApplicationModel_ExtendedExecution"]
+ApplicationModel_Holographic = ["ApplicationModel"]
+ApplicationModel_LockScreen = ["ApplicationModel"]
+ApplicationModel_Payments = ["ApplicationModel"]
+ApplicationModel_Payments_Provider = ["ApplicationModel_Payments"]
+ApplicationModel_Preview = ["ApplicationModel"]
+ApplicationModel_Preview_Holographic = ["ApplicationModel_Preview"]
+ApplicationModel_Preview_InkWorkspace = ["ApplicationModel_Preview"]
+ApplicationModel_Preview_Notes = ["ApplicationModel_Preview"]
+ApplicationModel_Resources = ["ApplicationModel"]
+ApplicationModel_Resources_Core = ["ApplicationModel_Resources"]
+ApplicationModel_Resources_Management = ["ApplicationModel_Resources"]
+ApplicationModel_Search = ["ApplicationModel"]
+ApplicationModel_Search_Core = ["ApplicationModel_Search"]
+ApplicationModel_Store = ["ApplicationModel"]
+ApplicationModel_Store_LicenseManagement = ["ApplicationModel_Store"]
+ApplicationModel_Store_Preview = ["ApplicationModel_Store"]
+ApplicationModel_Store_Preview_InstallControl = ["ApplicationModel_Store_Preview"]
+ApplicationModel_UserActivities = ["ApplicationModel"]
+ApplicationModel_UserActivities_Core = ["ApplicationModel_UserActivities"]
+ApplicationModel_UserDataAccounts = ["ApplicationModel"]
+ApplicationModel_UserDataAccounts_Provider = ["ApplicationModel_UserDataAccounts"]
+ApplicationModel_UserDataAccounts_SystemAccess = ["ApplicationModel_UserDataAccounts"]
+ApplicationModel_UserDataTasks = ["ApplicationModel"]
+ApplicationModel_UserDataTasks_DataProvider = ["ApplicationModel_UserDataTasks"]
+ApplicationModel_VoiceCommands = ["ApplicationModel"]
+ApplicationModel_Wallet = ["ApplicationModel"]
+ApplicationModel_Wallet_System = ["ApplicationModel_Wallet"]
+Data = []
+Data_Html = ["Data"]
+Data_Json = ["Data"]
+Data_Pdf = ["Data"]
+Data_Text = ["Data"]
+Data_Xml = ["Data"]
+Data_Xml_Dom = ["Data_Xml"]
+Data_Xml_Xsl = ["Data_Xml"]
+Devices = []
+Devices_Adc = ["Devices"]
+Devices_Adc_Provider = ["Devices_Adc"]
+Devices_Background = ["Devices"]
+Devices_Bluetooth = ["Devices"]
+Devices_Bluetooth_Advertisement = ["Devices_Bluetooth"]
+Devices_Bluetooth_Background = ["Devices_Bluetooth"]
+Devices_Bluetooth_GenericAttributeProfile = ["Devices_Bluetooth"]
+Devices_Bluetooth_Rfcomm = ["Devices_Bluetooth"]
+Devices_Custom = ["Devices"]
+Devices_Display = ["Devices"]
+Devices_Display_Core = ["Devices_Display"]
+Devices_Enumeration = ["Devices"]
+Devices_Enumeration_Pnp = ["Devices_Enumeration"]
+Devices_Geolocation = ["Devices"]
+Devices_Geolocation_Geofencing = ["Devices_Geolocation"]
+Devices_Geolocation_Provider = ["Devices_Geolocation"]
+Devices_Gpio = ["Devices"]
+Devices_Gpio_Provider = ["Devices_Gpio"]
+Devices_Haptics = ["Devices"]
+Devices_HumanInterfaceDevice = ["Devices"]
+Devices_I2c = ["Devices"]
+Devices_I2c_Provider = ["Devices_I2c"]
+Devices_Input = ["Devices"]
+Devices_Input_Preview = ["Devices_Input"]
+Devices_Lights = ["Devices"]
+Devices_Lights_Effects = ["Devices_Lights"]
+Devices_Midi = ["Devices"]
+Devices_PointOfService = ["Devices"]
+Devices_PointOfService_Provider = ["Devices_PointOfService"]
+Devices_Portable = ["Devices"]
+Devices_Power = ["Devices"]
+Devices_Printers = ["Devices"]
+Devices_Printers_Extensions = ["Devices_Printers"]
+Devices_Pwm = ["Devices"]
+Devices_Pwm_Provider = ["Devices_Pwm"]
+Devices_Radios = ["Devices"]
+Devices_Scanners = ["Devices"]
+Devices_Sensors = ["Devices"]
+Devices_Sensors_Custom = ["Devices_Sensors"]
+Devices_SerialCommunication = ["Devices"]
+Devices_SmartCards = ["Devices"]
+Devices_Sms = ["Devices"]
+Devices_Spi = ["Devices"]
+Devices_Spi_Provider = ["Devices_Spi"]
+Devices_Usb = ["Devices"]
+Devices_WiFi = ["Devices"]
+Devices_WiFiDirect = ["Devices"]
+Devices_WiFiDirect_Services = ["Devices_WiFiDirect"]
+Embedded = []
+Embedded_DeviceLockdown = ["Embedded"]
+Foundation = []
+Foundation_Collections = ["Foundation"]
+Foundation_Diagnostics = ["Foundation"]
+Foundation_Metadata = ["Foundation"]
+Foundation_Numerics = ["Foundation"]
+Gaming = []
+Gaming_Input = ["Gaming"]
+Gaming_Input_Custom = ["Gaming_Input"]
+Gaming_Input_ForceFeedback = ["Gaming_Input"]
+Gaming_Input_Preview = ["Gaming_Input"]
+Gaming_Preview = ["Gaming"]
+Gaming_Preview_GamesEnumeration = ["Gaming_Preview"]
+Gaming_UI = ["Gaming"]
+Gaming_XboxLive = ["Gaming"]
+Gaming_XboxLive_Storage = ["Gaming_XboxLive"]
+Globalization = []
+Globalization_Collation = ["Globalization"]
+Globalization_DateTimeFormatting = ["Globalization"]
+Globalization_Fonts = ["Globalization"]
+Globalization_NumberFormatting = ["Globalization"]
+Globalization_PhoneNumberFormatting = ["Globalization"]
+Graphics = []
+Graphics_Capture = ["Graphics"]
+Graphics_DirectX = ["Graphics"]
+Graphics_DirectX_Direct3D11 = ["Graphics_DirectX"]
+Graphics_Display = ["Graphics"]
+Graphics_Display_Core = ["Graphics_Display"]
+Graphics_Effects = ["Graphics"]
+Graphics_Holographic = ["Graphics"]
+Graphics_Imaging = ["Graphics"]
+Graphics_Printing = ["Graphics"]
+Graphics_Printing3D = ["Graphics"]
+Graphics_Printing_OptionDetails = ["Graphics_Printing"]
+Graphics_Printing_PrintSupport = ["Graphics_Printing"]
+Graphics_Printing_PrintTicket = ["Graphics_Printing"]
+Graphics_Printing_Workflow = ["Graphics_Printing"]
+Management = []
+Management_Core = ["Management"]
+Management_Deployment = ["Management"]
+Management_Deployment_Preview = ["Management_Deployment"]
+Management_Policies = ["Management"]
+Management_Update = ["Management"]
+Management_Workplace = ["Management"]
+Media = []
+Media_AppBroadcasting = ["Media"]
+Media_AppRecording = ["Media"]
+Media_Audio = ["Media"]
+Media_Capture = ["Media"]
+Media_Capture_Core = ["Media_Capture"]
+Media_Capture_Frames = ["Media_Capture"]
+Media_Casting = ["Media"]
+Media_ClosedCaptioning = ["Media"]
+Media_ContentRestrictions = ["Media"]
+Media_Control = ["Media"]
+Media_Core = ["Media"]
+Media_Core_Preview = ["Media_Core"]
+Media_Devices = ["Media"]
+Media_Devices_Core = ["Media_Devices"]
+Media_DialProtocol = ["Media"]
+Media_Editing = ["Media"]
+Media_Effects = ["Media"]
+Media_FaceAnalysis = ["Media"]
+Media_Import = ["Media"]
+Media_MediaProperties = ["Media"]
+Media_Miracast = ["Media"]
+Media_Ocr = ["Media"]
+Media_PlayTo = ["Media"]
+Media_Playback = ["Media"]
+Media_Playlists = ["Media"]
+Media_Protection = ["Media"]
+Media_Protection_PlayReady = ["Media_Protection"]
+Media_Render = ["Media"]
+Media_SpeechRecognition = ["Media"]
+Media_SpeechSynthesis = ["Media"]
+Media_Streaming = ["Media"]
+Media_Streaming_Adaptive = ["Media_Streaming"]
+Media_Transcoding = ["Media"]
+Networking = []
+Networking_BackgroundTransfer = ["Networking"]
+Networking_Connectivity = ["Networking"]
+Networking_NetworkOperators = ["Networking"]
+Networking_Proximity = ["Networking"]
+Networking_PushNotifications = ["Networking"]
+Networking_ServiceDiscovery = ["Networking"]
+Networking_ServiceDiscovery_Dnssd = ["Networking_ServiceDiscovery"]
+Networking_Sockets = ["Networking"]
+Networking_Vpn = ["Networking"]
+Networking_XboxLive = ["Networking"]
+Perception = []
+Perception_Automation = ["Perception"]
+Perception_Automation_Core = ["Perception_Automation"]
+Perception_People = ["Perception"]
+Perception_Spatial = ["Perception"]
+Perception_Spatial_Preview = ["Perception_Spatial"]
+Perception_Spatial_Surfaces = ["Perception_Spatial"]
+Phone = []
+Phone_ApplicationModel = ["Phone"]
+Phone_Devices = ["Phone"]
+Phone_Devices_Notification = ["Phone_Devices"]
+Phone_Devices_Power = ["Phone_Devices"]
+Phone_Management = ["Phone"]
+Phone_Management_Deployment = ["Phone_Management"]
+Phone_Media = ["Phone"]
+Phone_Media_Devices = ["Phone_Media"]
+Phone_Notification = ["Phone"]
+Phone_Notification_Management = ["Phone_Notification"]
+Phone_PersonalInformation = ["Phone"]
+Phone_PersonalInformation_Provisioning = ["Phone_PersonalInformation"]
+Phone_Speech = ["Phone"]
+Phone_Speech_Recognition = ["Phone_Speech"]
+Phone_StartScreen = ["Phone"]
+Phone_System = ["Phone"]
+Phone_System_Power = ["Phone_System"]
+Phone_System_Profile = ["Phone_System"]
+Phone_System_UserProfile = ["Phone_System"]
+Phone_System_UserProfile_GameServices = ["Phone_System_UserProfile"]
+Phone_System_UserProfile_GameServices_Core = ["Phone_System_UserProfile_GameServices"]
+Phone_UI = ["Phone"]
+Phone_UI_Input = ["Phone_UI"]
+Security = []
+Security_Authentication = ["Security"]
+Security_Authentication_Identity = ["Security_Authentication"]
+Security_Authentication_Identity_Core = ["Security_Authentication_Identity"]
+Security_Authentication_OnlineId = ["Security_Authentication"]
+Security_Authentication_Web = ["Security_Authentication"]
+Security_Authentication_Web_Core = ["Security_Authentication_Web"]
+Security_Authentication_Web_Provider = ["Security_Authentication_Web"]
+Security_Authorization = ["Security"]
+Security_Authorization_AppCapabilityAccess = ["Security_Authorization"]
+Security_Credentials = ["Security"]
+Security_Credentials_UI = ["Security_Credentials"]
+Security_Cryptography = ["Security"]
+Security_Cryptography_Certificates = ["Security_Cryptography"]
+Security_Cryptography_Core = ["Security_Cryptography"]
+Security_Cryptography_DataProtection = ["Security_Cryptography"]
+Security_DataProtection = ["Security"]
+Security_EnterpriseData = ["Security"]
+Security_ExchangeActiveSyncProvisioning = ["Security"]
+Security_Isolation = ["Security"]
+Services = []
+Services_Maps = ["Services"]
+Services_Maps_Guidance = ["Services_Maps"]
+Services_Maps_LocalSearch = ["Services_Maps"]
+Services_Maps_OfflineMaps = ["Services_Maps"]
+Services_Store = ["Services"]
+Services_TargetedContent = ["Services"]
+Storage = []
+Storage_AccessCache = ["Storage"]
+Storage_BulkAccess = ["Storage"]
+Storage_Compression = ["Storage"]
+Storage_FileProperties = ["Storage"]
+Storage_Pickers = ["Storage"]
+Storage_Pickers_Provider = ["Storage_Pickers"]
+Storage_Provider = ["Storage"]
+Storage_Search = ["Storage"]
+Storage_Streams = ["Storage"]
+System = []
+System_Diagnostics = ["System"]
+System_Diagnostics_DevicePortal = ["System_Diagnostics"]
+System_Diagnostics_Telemetry = ["System_Diagnostics"]
+System_Diagnostics_TraceReporting = ["System_Diagnostics"]
+System_Display = ["System"]
+System_Implementation = ["System"]
+System_Implementation_FileExplorer = ["System_Implementation"]
+System_Inventory = ["System"]
+System_Power = ["System"]
+System_Profile = ["System"]
+System_Profile_SystemManufacturers = ["System_Profile"]
+System_RemoteDesktop = ["System"]
+System_RemoteDesktop_Input = ["System_RemoteDesktop"]
+System_RemoteSystems = ["System"]
+System_Threading = ["System"]
+System_Threading_Core = ["System_Threading"]
+System_Update = ["System"]
+System_UserProfile = ["System"]
+UI = []
+UI_Accessibility = ["UI"]
+UI_ApplicationSettings = ["UI"]
+UI_Composition = ["UI"]
+UI_Composition_Core = ["UI_Composition"]
+UI_Composition_Desktop = ["UI_Composition"]
+UI_Composition_Diagnostics = ["UI_Composition"]
+UI_Composition_Effects = ["UI_Composition"]
+UI_Composition_Interactions = ["UI_Composition"]
+UI_Composition_Scenes = ["UI_Composition"]
+UI_Core = ["UI"]
+UI_Core_AnimationMetrics = ["UI_Core"]
+UI_Core_Preview = ["UI_Core"]
+UI_Input = ["UI"]
+UI_Input_Core = ["UI_Input"]
+UI_Input_Inking = ["UI_Input"]
+UI_Input_Inking_Analysis = ["UI_Input_Inking"]
+UI_Input_Inking_Core = ["UI_Input_Inking"]
+UI_Input_Inking_Preview = ["UI_Input_Inking"]
+UI_Input_Preview = ["UI_Input"]
+UI_Input_Preview_Injection = ["UI_Input_Preview"]
+UI_Input_Spatial = ["UI_Input"]
+UI_Notifications = ["UI"]
+UI_Notifications_Management = ["UI_Notifications"]
+UI_Popups = ["UI"]
+UI_Shell = ["UI"]
+UI_StartScreen = ["UI"]
+UI_Text = ["UI"]
+UI_Text_Core = ["UI_Text"]
+UI_UIAutomation = ["UI"]
+UI_UIAutomation_Core = ["UI_UIAutomation"]
+UI_ViewManagement = ["UI"]
+UI_ViewManagement_Core = ["UI_ViewManagement"]
+UI_WebUI = ["UI"]
+UI_WebUI_Core = ["UI_WebUI"]
+UI_WindowManagement = ["UI"]
+UI_WindowManagement_Preview = ["UI_WindowManagement"]
+Wdk = []
+Wdk_Foundation = ["Wdk"]
+Wdk_Graphics = ["Wdk"]
+Wdk_Graphics_Direct3D = ["Wdk_Graphics"]
+Wdk_Storage = ["Wdk"]
+Wdk_Storage_FileSystem = ["Wdk_Storage"]
+Wdk_Storage_FileSystem_Minifilters = ["Wdk_Storage_FileSystem"]
+Wdk_System = ["Wdk"]
+Wdk_System_IO = ["Wdk_System"]
+Wdk_System_OfflineRegistry = ["Wdk_System"]
+Wdk_System_Registry = ["Wdk_System"]
+Wdk_System_SystemInformation = ["Wdk_System"]
+Wdk_System_SystemServices = ["Wdk_System"]
+Wdk_System_Threading = ["Wdk_System"]
+Web = []
+Web_AtomPub = ["Web"]
+Web_Http = ["Web"]
+Web_Http_Diagnostics = ["Web_Http"]
+Web_Http_Filters = ["Web_Http"]
+Web_Http_Headers = ["Web_Http"]
+Web_Syndication = ["Web"]
+Web_UI = ["Web"]
+Web_UI_Interop = ["Web_UI"]
+Win32 = []
+Win32_AI = ["Win32"]
+Win32_AI_MachineLearning = ["Win32_AI"]
+Win32_AI_MachineLearning_DirectML = ["Win32_AI_MachineLearning"]
+Win32_AI_MachineLearning_WinML = ["Win32_AI_MachineLearning"]
+Win32_Data = ["Win32"]
+Win32_Data_HtmlHelp = ["Win32_Data"]
+Win32_Data_RightsManagement = ["Win32_Data"]
+Win32_Data_Xml = ["Win32_Data"]
+Win32_Data_Xml_MsXml = ["Win32_Data_Xml"]
+Win32_Data_Xml_XmlLite = ["Win32_Data_Xml"]
+Win32_Devices = ["Win32"]
+Win32_Devices_AllJoyn = ["Win32_Devices"]
+Win32_Devices_BiometricFramework = ["Win32_Devices"]
+Win32_Devices_Bluetooth = ["Win32_Devices"]
+Win32_Devices_Communication = ["Win32_Devices"]
+Win32_Devices_DeviceAccess = ["Win32_Devices"]
+Win32_Devices_DeviceAndDriverInstallation = ["Win32_Devices"]
+Win32_Devices_DeviceQuery = ["Win32_Devices"]
+Win32_Devices_Display = ["Win32_Devices"]
+Win32_Devices_Enumeration = ["Win32_Devices"]
+Win32_Devices_Enumeration_Pnp = ["Win32_Devices_Enumeration"]
+Win32_Devices_Fax = ["Win32_Devices"]
+Win32_Devices_FunctionDiscovery = ["Win32_Devices"]
+Win32_Devices_Geolocation = ["Win32_Devices"]
+Win32_Devices_HumanInterfaceDevice = ["Win32_Devices"]
+Win32_Devices_ImageAcquisition = ["Win32_Devices"]
+Win32_Devices_PortableDevices = ["Win32_Devices"]
+Win32_Devices_Properties = ["Win32_Devices"]
+Win32_Devices_Pwm = ["Win32_Devices"]
+Win32_Devices_Sensors = ["Win32_Devices"]
+Win32_Devices_SerialCommunication = ["Win32_Devices"]
+Win32_Devices_Tapi = ["Win32_Devices"]
+Win32_Devices_Usb = ["Win32_Devices"]
+Win32_Devices_WebServicesOnDevices = ["Win32_Devices"]
+Win32_Foundation = ["Win32"]
+Win32_Gaming = ["Win32"]
+Win32_Globalization = ["Win32"]
+Win32_Graphics = ["Win32"]
+Win32_Graphics_CompositionSwapchain = ["Win32_Graphics"]
+Win32_Graphics_DXCore = ["Win32_Graphics"]
+Win32_Graphics_Direct2D = ["Win32_Graphics"]
+Win32_Graphics_Direct2D_Common = ["Win32_Graphics_Direct2D"]
+Win32_Graphics_Direct3D = ["Win32_Graphics"]
+Win32_Graphics_Direct3D10 = ["Win32_Graphics"]
+Win32_Graphics_Direct3D11 = ["Win32_Graphics"]
+Win32_Graphics_Direct3D11on12 = ["Win32_Graphics"]
+Win32_Graphics_Direct3D12 = ["Win32_Graphics"]
+Win32_Graphics_Direct3D9 = ["Win32_Graphics"]
+Win32_Graphics_Direct3D9on12 = ["Win32_Graphics"]
+Win32_Graphics_Direct3D_Dxc = ["Win32_Graphics_Direct3D"]
+Win32_Graphics_Direct3D_Fxc = ["Win32_Graphics_Direct3D"]
+Win32_Graphics_DirectComposition = ["Win32_Graphics"]
+Win32_Graphics_DirectDraw = ["Win32_Graphics"]
+Win32_Graphics_DirectManipulation = ["Win32_Graphics"]
+Win32_Graphics_DirectWrite = ["Win32_Graphics"]
+Win32_Graphics_Dwm = ["Win32_Graphics"]
+Win32_Graphics_Dxgi = ["Win32_Graphics"]
+Win32_Graphics_Dxgi_Common = ["Win32_Graphics_Dxgi"]
+Win32_Graphics_Gdi = ["Win32_Graphics"]
+Win32_Graphics_GdiPlus = ["Win32_Graphics"]
+Win32_Graphics_Hlsl = ["Win32_Graphics"]
+Win32_Graphics_Imaging = ["Win32_Graphics"]
+Win32_Graphics_Imaging_D2D = ["Win32_Graphics_Imaging"]
+Win32_Graphics_OpenGL = ["Win32_Graphics"]
+Win32_Graphics_Printing = ["Win32_Graphics"]
+Win32_Graphics_Printing_PrintTicket = ["Win32_Graphics_Printing"]
+Win32_Management = ["Win32"]
+Win32_Management_MobileDeviceManagementRegistration = ["Win32_Management"]
+Win32_Media = ["Win32"]
+Win32_Media_Audio = ["Win32_Media"]
+Win32_Media_Audio_Apo = ["Win32_Media_Audio"]
+Win32_Media_Audio_DirectMusic = ["Win32_Media_Audio"]
+Win32_Media_Audio_DirectSound = ["Win32_Media_Audio"]
+Win32_Media_Audio_Endpoints = ["Win32_Media_Audio"]
+Win32_Media_Audio_XAudio2 = ["Win32_Media_Audio"]
+Win32_Media_DeviceManager = ["Win32_Media"]
+Win32_Media_DirectShow = ["Win32_Media"]
+Win32_Media_DirectShow_Tv = ["Win32_Media_DirectShow"]
+Win32_Media_DirectShow_Xml = ["Win32_Media_DirectShow"]
+Win32_Media_DxMediaObjects = ["Win32_Media"]
+Win32_Media_KernelStreaming = ["Win32_Media"]
+Win32_Media_LibrarySharingServices = ["Win32_Media"]
+Win32_Media_MediaFoundation = ["Win32_Media"]
+Win32_Media_MediaPlayer = ["Win32_Media"]
+Win32_Media_Multimedia = ["Win32_Media"]
+Win32_Media_PictureAcquisition = ["Win32_Media"]
+Win32_Media_Speech = ["Win32_Media"]
+Win32_Media_Streaming = ["Win32_Media"]
+Win32_Media_WindowsMediaFormat = ["Win32_Media"]
+Win32_NetworkManagement = ["Win32"]
+Win32_NetworkManagement_Dhcp = ["Win32_NetworkManagement"]
+Win32_NetworkManagement_Dns = ["Win32_NetworkManagement"]
+Win32_NetworkManagement_InternetConnectionWizard = ["Win32_NetworkManagement"]
+Win32_NetworkManagement_IpHelper = ["Win32_NetworkManagement"]
+Win32_NetworkManagement_MobileBroadband = ["Win32_NetworkManagement"]
+Win32_NetworkManagement_Multicast = ["Win32_NetworkManagement"]
+Win32_NetworkManagement_Ndis = ["Win32_NetworkManagement"]
+Win32_NetworkManagement_NetBios = ["Win32_NetworkManagement"]
+Win32_NetworkManagement_NetManagement = ["Win32_NetworkManagement"]
+Win32_NetworkManagement_NetShell = ["Win32_NetworkManagement"]
+Win32_NetworkManagement_NetworkDiagnosticsFramework = ["Win32_NetworkManagement"]
+Win32_NetworkManagement_NetworkPolicyServer = ["Win32_NetworkManagement"]
+Win32_NetworkManagement_P2P = ["Win32_NetworkManagement"]
+Win32_NetworkManagement_QoS = ["Win32_NetworkManagement"]
+Win32_NetworkManagement_Rras = ["Win32_NetworkManagement"]
+Win32_NetworkManagement_Snmp = ["Win32_NetworkManagement"]
+Win32_NetworkManagement_WNet = ["Win32_NetworkManagement"]
+Win32_NetworkManagement_WebDav = ["Win32_NetworkManagement"]
+Win32_NetworkManagement_WiFi = ["Win32_NetworkManagement"]
+Win32_NetworkManagement_WindowsConnectNow = ["Win32_NetworkManagement"]
+Win32_NetworkManagement_WindowsConnectionManager = ["Win32_NetworkManagement"]
+Win32_NetworkManagement_WindowsFilteringPlatform = ["Win32_NetworkManagement"]
+Win32_NetworkManagement_WindowsFirewall = ["Win32_NetworkManagement"]
+Win32_NetworkManagement_WindowsNetworkVirtualization = ["Win32_NetworkManagement"]
+Win32_Networking = ["Win32"]
+Win32_Networking_ActiveDirectory = ["Win32_Networking"]
+Win32_Networking_BackgroundIntelligentTransferService = ["Win32_Networking"]
+Win32_Networking_Clustering = ["Win32_Networking"]
+Win32_Networking_HttpServer = ["Win32_Networking"]
+Win32_Networking_Ldap = ["Win32_Networking"]
+Win32_Networking_NetworkListManager = ["Win32_Networking"]
+Win32_Networking_RemoteDifferentialCompression = ["Win32_Networking"]
+Win32_Networking_WebSocket = ["Win32_Networking"]
+Win32_Networking_WinHttp = ["Win32_Networking"]
+Win32_Networking_WinInet = ["Win32_Networking"]
+Win32_Networking_WinSock = ["Win32_Networking"]
+Win32_Networking_WindowsWebServices = ["Win32_Networking"]
+Win32_Security = ["Win32"]
+Win32_Security_AppLocker = ["Win32_Security"]
+Win32_Security_Authentication = ["Win32_Security"]
+Win32_Security_Authentication_Identity = ["Win32_Security_Authentication"]
+Win32_Security_Authentication_Identity_Provider = ["Win32_Security_Authentication_Identity"]
+Win32_Security_Authorization = ["Win32_Security"]
+Win32_Security_Authorization_UI = ["Win32_Security_Authorization"]
+Win32_Security_ConfigurationSnapin = ["Win32_Security"]
+Win32_Security_Credentials = ["Win32_Security"]
+Win32_Security_Cryptography = ["Win32_Security"]
+Win32_Security_Cryptography_Catalog = ["Win32_Security_Cryptography"]
+Win32_Security_Cryptography_Certificates = ["Win32_Security_Cryptography"]
+Win32_Security_Cryptography_Sip = ["Win32_Security_Cryptography"]
+Win32_Security_Cryptography_UI = ["Win32_Security_Cryptography"]
+Win32_Security_DiagnosticDataQuery = ["Win32_Security"]
+Win32_Security_DirectoryServices = ["Win32_Security"]
+Win32_Security_EnterpriseData = ["Win32_Security"]
+Win32_Security_ExtensibleAuthenticationProtocol = ["Win32_Security"]
+Win32_Security_Isolation = ["Win32_Security"]
+Win32_Security_LicenseProtection = ["Win32_Security"]
+Win32_Security_NetworkAccessProtection = ["Win32_Security"]
+Win32_Security_Tpm = ["Win32_Security"]
+Win32_Security_WinTrust = ["Win32_Security"]
+Win32_Security_WinWlx = ["Win32_Security"]
+Win32_Storage = ["Win32"]
+Win32_Storage_Cabinets = ["Win32_Storage"]
+Win32_Storage_CloudFilters = ["Win32_Storage"]
+Win32_Storage_Compression = ["Win32_Storage"]
+Win32_Storage_DataDeduplication = ["Win32_Storage"]
+Win32_Storage_DistributedFileSystem = ["Win32_Storage"]
+Win32_Storage_EnhancedStorage = ["Win32_Storage"]
+Win32_Storage_FileHistory = ["Win32_Storage"]
+Win32_Storage_FileServerResourceManager = ["Win32_Storage"]
+Win32_Storage_FileSystem = ["Win32_Storage"]
+Win32_Storage_Imapi = ["Win32_Storage"]
+Win32_Storage_IndexServer = ["Win32_Storage"]
+Win32_Storage_InstallableFileSystems = ["Win32_Storage"]
+Win32_Storage_IscsiDisc = ["Win32_Storage"]
+Win32_Storage_Jet = ["Win32_Storage"]
+Win32_Storage_Nvme = ["Win32_Storage"]
+Win32_Storage_OfflineFiles = ["Win32_Storage"]
+Win32_Storage_OperationRecorder = ["Win32_Storage"]
+Win32_Storage_Packaging = ["Win32_Storage"]
+Win32_Storage_Packaging_Appx = ["Win32_Storage_Packaging"]
+Win32_Storage_Packaging_Opc = ["Win32_Storage_Packaging"]
+Win32_Storage_ProjectedFileSystem = ["Win32_Storage"]
+Win32_Storage_StructuredStorage = ["Win32_Storage"]
+Win32_Storage_Vhd = ["Win32_Storage"]
+Win32_Storage_VirtualDiskService = ["Win32_Storage"]
+Win32_Storage_Vss = ["Win32_Storage"]
+Win32_Storage_Xps = ["Win32_Storage"]
+Win32_Storage_Xps_Printing = ["Win32_Storage_Xps"]
+Win32_System = ["Win32"]
+Win32_System_AddressBook = ["Win32_System"]
+Win32_System_Antimalware = ["Win32_System"]
+Win32_System_ApplicationInstallationAndServicing = ["Win32_System"]
+Win32_System_ApplicationVerifier = ["Win32_System"]
+Win32_System_AssessmentTool = ["Win32_System"]
+Win32_System_ClrHosting = ["Win32_System"]
+Win32_System_Com = ["Win32_System"]
+Win32_System_Com_CallObj = ["Win32_System_Com"]
+Win32_System_Com_ChannelCredentials = ["Win32_System_Com"]
+Win32_System_Com_Events = ["Win32_System_Com"]
+Win32_System_Com_Marshal = ["Win32_System_Com"]
+Win32_System_Com_StructuredStorage = ["Win32_System_Com"]
+Win32_System_Com_UI = ["Win32_System_Com"]
+Win32_System_Com_Urlmon = ["Win32_System_Com"]
+Win32_System_ComponentServices = ["Win32_System"]
+Win32_System_Console = ["Win32_System"]
+Win32_System_Contacts = ["Win32_System"]
+Win32_System_CorrelationVector = ["Win32_System"]
+Win32_System_DataExchange = ["Win32_System"]
+Win32_System_DeploymentServices = ["Win32_System"]
+Win32_System_DesktopSharing = ["Win32_System"]
+Win32_System_DeveloperLicensing = ["Win32_System"]
+Win32_System_Diagnostics = ["Win32_System"]
+Win32_System_Diagnostics_Ceip = ["Win32_System_Diagnostics"]
+Win32_System_Diagnostics_ClrProfiling = ["Win32_System_Diagnostics"]
+Win32_System_Diagnostics_Debug = ["Win32_System_Diagnostics"]
+Win32_System_Diagnostics_Debug_ActiveScript = ["Win32_System_Diagnostics_Debug"]
+Win32_System_Diagnostics_Debug_Extensions = ["Win32_System_Diagnostics_Debug"]
+Win32_System_Diagnostics_Etw = ["Win32_System_Diagnostics"]
+Win32_System_Diagnostics_ProcessSnapshotting = ["Win32_System_Diagnostics"]
+Win32_System_Diagnostics_ToolHelp = ["Win32_System_Diagnostics"]
+Win32_System_DistributedTransactionCoordinator = ["Win32_System"]
+Win32_System_Environment = ["Win32_System"]
+Win32_System_ErrorReporting = ["Win32_System"]
+Win32_System_EventCollector = ["Win32_System"]
+Win32_System_EventLog = ["Win32_System"]
+Win32_System_EventNotificationService = ["Win32_System"]
+Win32_System_GroupPolicy = ["Win32_System"]
+Win32_System_HostCompute = ["Win32_System"]
+Win32_System_HostComputeNetwork = ["Win32_System"]
+Win32_System_HostComputeSystem = ["Win32_System"]
+Win32_System_Hypervisor = ["Win32_System"]
+Win32_System_IO = ["Win32_System"]
+Win32_System_Iis = ["Win32_System"]
+Win32_System_Ioctl = ["Win32_System"]
+Win32_System_JobObjects = ["Win32_System"]
+Win32_System_Js = ["Win32_System"]
+Win32_System_Kernel = ["Win32_System"]
+Win32_System_LibraryLoader = ["Win32_System"]
+Win32_System_Mailslots = ["Win32_System"]
+Win32_System_Mapi = ["Win32_System"]
+Win32_System_Memory = ["Win32_System"]
+Win32_System_Memory_NonVolatile = ["Win32_System_Memory"]
+Win32_System_MessageQueuing = ["Win32_System"]
+Win32_System_MixedReality = ["Win32_System"]
+Win32_System_Mmc = ["Win32_System"]
+Win32_System_Ole = ["Win32_System"]
+Win32_System_ParentalControls = ["Win32_System"]
+Win32_System_PasswordManagement = ["Win32_System"]
+Win32_System_Performance = ["Win32_System"]
+Win32_System_Performance_HardwareCounterProfiling = ["Win32_System_Performance"]
+Win32_System_Pipes = ["Win32_System"]
+Win32_System_Power = ["Win32_System"]
+Win32_System_ProcessStatus = ["Win32_System"]
+Win32_System_RealTimeCommunications = ["Win32_System"]
+Win32_System_Recovery = ["Win32_System"]
+Win32_System_Registry = ["Win32_System"]
+Win32_System_RemoteAssistance = ["Win32_System"]
+Win32_System_RemoteDesktop = ["Win32_System"]
+Win32_System_RemoteManagement = ["Win32_System"]
+Win32_System_RestartManager = ["Win32_System"]
+Win32_System_Restore = ["Win32_System"]
+Win32_System_Rpc = ["Win32_System"]
+Win32_System_Search = ["Win32_System"]
+Win32_System_Search_Common = ["Win32_System_Search"]
+Win32_System_SecurityCenter = ["Win32_System"]
+Win32_System_ServerBackup = ["Win32_System"]
+Win32_System_Services = ["Win32_System"]
+Win32_System_SettingsManagementInfrastructure = ["Win32_System"]
+Win32_System_SetupAndMigration = ["Win32_System"]
+Win32_System_Shutdown = ["Win32_System"]
+Win32_System_SideShow = ["Win32_System"]
+Win32_System_StationsAndDesktops = ["Win32_System"]
+Win32_System_SubsystemForLinux = ["Win32_System"]
+Win32_System_SystemInformation = ["Win32_System"]
+Win32_System_SystemServices = ["Win32_System"]
+Win32_System_TaskScheduler = ["Win32_System"]
+Win32_System_Threading = ["Win32_System"]
+Win32_System_Time = ["Win32_System"]
+Win32_System_TpmBaseServices = ["Win32_System"]
+Win32_System_TransactionServer = ["Win32_System"]
+Win32_System_UpdateAgent = ["Win32_System"]
+Win32_System_UpdateAssessment = ["Win32_System"]
+Win32_System_UserAccessLogging = ["Win32_System"]
+Win32_System_Variant = ["Win32_System"]
+Win32_System_VirtualDosMachines = ["Win32_System"]
+Win32_System_WinRT = ["Win32_System"]
+Win32_System_WinRT_AllJoyn = ["Win32_System_WinRT"]
+Win32_System_WinRT_Composition = ["Win32_System_WinRT"]
+Win32_System_WinRT_CoreInputView = ["Win32_System_WinRT"]
+Win32_System_WinRT_Direct3D11 = ["Win32_System_WinRT"]
+Win32_System_WinRT_Display = ["Win32_System_WinRT"]
+Win32_System_WinRT_Graphics = ["Win32_System_WinRT"]
+Win32_System_WinRT_Graphics_Capture = ["Win32_System_WinRT_Graphics"]
+Win32_System_WinRT_Graphics_Direct2D = ["Win32_System_WinRT_Graphics"]
+Win32_System_WinRT_Graphics_Imaging = ["Win32_System_WinRT_Graphics"]
+Win32_System_WinRT_Holographic = ["Win32_System_WinRT"]
+Win32_System_WinRT_Isolation = ["Win32_System_WinRT"]
+Win32_System_WinRT_ML = ["Win32_System_WinRT"]
+Win32_System_WinRT_Media = ["Win32_System_WinRT"]
+Win32_System_WinRT_Metadata = ["Win32_System_WinRT"]
+Win32_System_WinRT_Pdf = ["Win32_System_WinRT"]
+Win32_System_WinRT_Printing = ["Win32_System_WinRT"]
+Win32_System_WinRT_Shell = ["Win32_System_WinRT"]
+Win32_System_WinRT_Storage = ["Win32_System_WinRT"]
+Win32_System_WindowsProgramming = ["Win32_System"]
+Win32_System_WindowsSync = ["Win32_System"]
+Win32_System_Wmi = ["Win32_System"]
+Win32_UI = ["Win32"]
+Win32_UI_Accessibility = ["Win32_UI"]
+Win32_UI_Animation = ["Win32_UI"]
+Win32_UI_ColorSystem = ["Win32_UI"]
+Win32_UI_Controls = ["Win32_UI"]
+Win32_UI_Controls_Dialogs = ["Win32_UI_Controls"]
+Win32_UI_Controls_RichEdit = ["Win32_UI_Controls"]
+Win32_UI_HiDpi = ["Win32_UI"]
+Win32_UI_Input = ["Win32_UI"]
+Win32_UI_Input_Ime = ["Win32_UI_Input"]
+Win32_UI_Input_Ink = ["Win32_UI_Input"]
+Win32_UI_Input_KeyboardAndMouse = ["Win32_UI_Input"]
+Win32_UI_Input_Pointer = ["Win32_UI_Input"]
+Win32_UI_Input_Radial = ["Win32_UI_Input"]
+Win32_UI_Input_Touch = ["Win32_UI_Input"]
+Win32_UI_Input_XboxController = ["Win32_UI_Input"]
+Win32_UI_InteractionContext = ["Win32_UI"]
+Win32_UI_LegacyWindowsEnvironmentFeatures = ["Win32_UI"]
+Win32_UI_Magnification = ["Win32_UI"]
+Win32_UI_Notifications = ["Win32_UI"]
+Win32_UI_Ribbon = ["Win32_UI"]
+Win32_UI_Shell = ["Win32_UI"]
+Win32_UI_Shell_Common = ["Win32_UI_Shell"]
+Win32_UI_Shell_PropertiesSystem = ["Win32_UI_Shell"]
+Win32_UI_TabletPC = ["Win32_UI"]
+Win32_UI_TextServices = ["Win32_UI"]
+Win32_UI_WindowsAndMessaging = ["Win32_UI"]
+Win32_UI_Wpf = ["Win32_UI"]
+Win32_Web = ["Win32"]
+Win32_Web_InternetExplorer = ["Win32_Web"]
+default = []
+deprecated = []
+docs = []
+implement = [
+    "windows-implement",
+    "windows-interface",
+    "windows-core/implement",
+]
+
+[dependencies.mozbuild]
+version = "0.1"

build/rust/windows/src/lib.rs

@@ -0,0 +1,24 @@
+#![allow(warnings)]
+#![cfg_attr(docsrs, doc = "This is a stub. The latest API documentation is here: <https://microsoft.github.io/windows-docs-rs/>")]
+#![cfg_attr(docsrs, doc = "")]
+/*!
+Learn more about Rust for Windows here: <https://github.com/microsoft/windows-rs>
+*/
+
+#![doc(html_no_source)]
+#![allow(non_snake_case, clashing_extern_declarations, non_upper_case_globals, non_camel_case_types, clippy::all)]
+#![cfg_attr(not(feature = "docs"), doc(hidden))]
+
+extern crate self as windows;
+
+pub mod core {
+    pub use windows_core::*;
+
+    #[cfg(feature = "implement")]
+    pub use windows_implement::implement;
+
+    #[cfg(feature = "implement")]
+    pub use windows_interface::interface;
+}
+
+include!(mozbuild::windows_rs_path!("src/Windows/mod.rs"));

python/mozbuild/mozbuild/vendor/vendor_rust.py

@@ -75,14 +75,13 @@ Cargo.lock to the HEAD version, run `git checkout -- Cargo.lock` or
 """
 
 
-PACKAGES_WE_DONT_WANT = {
-    "windows": "The windows crate is too big to vendor.",
-}
+PACKAGES_WE_DONT_WANT = {}
 
 PACKAGES_WE_ALWAYS_WANT_AN_OVERRIDE_OF = [
     "autocfg",
     "cmake",
     "vcpkg",
+    "windows",
     "windows-targets",
 ]
 

supply-chain/audits.toml

@@ -5064,6 +5064,12 @@ user-id = 189 # Andrew Gallant (BurntSushi)
 start = "2020-01-11"
 end = "2024-05-03"
 
+[[trusted.windows]]
+criteria = "safe-to-deploy"
+user-id = 64539 # Kenny Kerr (kennykerr)
+start = "2021-01-15"
+end = "2025-01-30"
+
 [[trusted.windows-core]]
 criteria = "safe-to-deploy"
 user-id = 64539 # Kenny Kerr (kennykerr)

supply-chain/config.toml

@@ -227,6 +227,10 @@ notes = "Upstream project which we pin."
 audit-as-crates-io = true
 notes = "Upstream project which we pin."
 
+[policy.windows]
+audit-as-crates-io = true
+notes = "Local override of the crates.io crate that uses a non-vendored local copy of the downloaded crate"
+
 [policy.wr_malloc_size_of]
 audit-as-crates-io = false
 

supply-chain/imports.lock

@@ -775,6 +775,13 @@ user-id = 189
 user-login = "BurntSushi"
 user-name = "Andrew Gallant"
 
+[[publisher.windows]]
+version = "0.52.0"
+when = "2023-11-15"
+user-id = 64539
+user-login = "kennykerr"
+user-name = "Kenny Kerr"
+
 [[publisher.windows-core]]
 version = "0.52.0"
 when = "2023-11-15"

taskcluster/ci/build/windows-mingw.yml

@@ -12,6 +12,9 @@ job-defaults:
         script: mozharness/scripts/fx_desktop_build.py
     optimization:
         skip-unless-expanded: null
+    fetches:
+        toolchain:
+            - windows-rs
 
 win32-mingwclang/opt:
     description: "Win32 MinGW-Clang Opt"

taskcluster/ci/build/windows.yml

@@ -5,6 +5,9 @@
 job-defaults:
     run:
         using: mozharness
+    fetches:
+        toolchain:
+            - windows-rs
 
 win32/debug:
     description: "Win32 Debug"

taskcluster/ci/instrumented-build/kind.yml

@@ -367,6 +367,7 @@ jobs:
                 - sysroot-x86_64-linux-gnu
                 - sysroot-wasm32-wasi
                 - vs
+                - windows-rs
             fetch:
                 - upx-3.95-win
 
@@ -403,5 +404,6 @@ jobs:
                 - sysroot-x86_64-linux-gnu
                 - sysroot-wasm32-wasi
                 - vs
+                - windows-rs
             fetch:
                 - upx-3.95-win

taskcluster/ci/searchfox/kind.yml

@@ -138,6 +138,7 @@ jobs:
                 - sysroot-x86_64-linux-gnu
                 - sysroot-wasm32-wasi
                 - vs
+                - windows-rs
             fetch:
                 - upx-3.95-win
 

toolkit/library/rust/shared/Cargo.toml

@@ -116,7 +116,7 @@ suggest = { version = "0.1" }
 
 [target.'cfg(target_os = "windows")'.dependencies]
 detect_win32k_conflicts = { path = "../../../xre/detect_win32k_conflicts" }
-windows-core = "=0.52.0"
+windows = "=0.52.0"
 
 [features]
 default = []

toolkit/moz.configure

@@ -3573,3 +3573,112 @@ def perl_version_check(min_version):
 
 with only_when(need_perl):
     perl_version_check("5.006")
+
+
+# windows-rs as bootstrappable toolchain
+# ==============================================================
+# The in-tree windows crate's purpose is to avoid vendoring the
+# original windows crate, which is too large.
+# The ideal solution would be for cargo to allow exceptions to
+# vendoring, but it doesn't.
+# The adopted solution is to somehow use the crate contents from
+# a directory given via the mozbuild config, or bootstrapped.
+#
+# Unfortunately, doing `include!(mozbuild::windows_rs_path!("src/lib.rs"))`
+# in the crate's lib.rs doesn't work because of
+# https://github.com/rust-lang/rust/issues/66920.
+#
+# Previous versions of the windows crate had submodules declared
+# directly in lib.rs. Annotating each of them with
+# `#[path = concat!(mozbuild::windows_rs_path!("path/to/mod.rs"))]`
+# unfortunately also didn't work, because of
+# https://github.com/rust-lang/rust/issues/48250.
+#
+# Thankfully, newer versions of the windows crate now only have an
+# `include!` at the end of lib.rs, so we can get away with simply
+# replacing it with an `include!` that uses `mozbuild::windows_rs_path!`.
+#
+# We ensure that the in-tree contents match what we expect based on
+# the original crate.
+# The expectations are as such:
+# - Cargo.toml is identical to the original one with the addition of the
+#   following two lines at the end (after an empty line):
+#     [dependencies.mozbuild]
+#     version = "0.1"
+# - src/lib.rs is mostly identical to the original one, with two notable
+#   differences:
+#   - the addition of `#![allow(warnings)]` on the first line, because if
+#     the crate had been vendored normally, it would not be affected by
+#     `-D warnings`, and `#![allow(warnings)]` mimicks that.
+#   - the replacement of any
+#     `include!("path/file.rs")`
+#     with
+#     `include!(mozbuild::windows_rs_path!("src/path/file.rs"))`
+with only_when(target_is_windows & compile_environment):
+    option(
+        env="MOZ_WINDOWS_RS_DIR",
+        nargs=1,
+        help="Path to the source of the 'windows' Rust crate",
+    )
+
+    @depends(
+        "MOZ_WINDOWS_RS_DIR",
+        bootstrap_path(
+            "windows-rs",
+            when=depends("MOZ_WINDOWS_RS_DIR")(lambda x: not x),
+        ),
+        build_environment.topsrcdir,
+    )
+    @checking("for the windows rust crate source")
+    @imports(_from="__builtin__", _import="open")
+    @imports("re")
+    @imports("toml")
+    def windows_rs_dir(dir, bootstrapped, topsrcdir):
+        if bootstrapped:
+            dir = bootstrapped
+        elif dir:
+            dir = dir[0]
+
+        raw_cargo_toml = open(
+            os.path.join(topsrcdir, "build/rust/windows/Cargo.toml")
+        ).read()
+        cargo_toml = toml.loads(raw_cargo_toml)
+        expected_version = cargo_toml["package"]["version"]
+
+        if not dir:
+            raise FatalCheckError(
+                "Cannot find the windows rust crate source.\n"
+                f"Try downloading it with `cargo download -x windows={expected_version}`\n"
+                "(you may need to `cargo install cargo-download` first)\n"
+                f"and set `MOZ_WINDOWS_RS_DIR` to location of the `windows-{expected_version}`"
+                " directory"
+            )
+
+        raw_cargo_toml_orig = open(os.path.join(dir, "Cargo.toml")).read()
+        cargo_toml = toml.loads(raw_cargo_toml_orig)
+        version = cargo_toml["package"]["version"]
+        if version != expected_version:
+            raise FatalCheckError(
+                f"The windows rust crate source in {dir} contains version "
+                f"{version}, but expected {expected_version}."
+            )
+        # Now that we've done the basic sanity check, let's go deeper.
+        DEPENDENCIES = '\n[dependencies.mozbuild]\nversion = "0.1"\n'
+        if not raw_cargo_toml.endswith(DEPENDENCIES):
+            configure_error("In-tree windows crate is missing dependency on mozbuild")
+        if raw_cargo_toml[: -len(DEPENDENCIES)] != raw_cargo_toml_orig:
+            configure_error("In-tree windows crate Cargo.toml doesn't match original")
+
+        lib_rs = open(os.path.join(topsrcdir, "build/rust/windows/src/lib.rs")).read()
+        lib_rs_orig = open(os.path.join(dir, "src/lib.rs")).read()
+        lib_rs_expected = "#![allow(warnings)]\n" + re.sub(
+            r'include!\("([^"]*)"\)',
+            r'include!(mozbuild::windows_rs_path!("src/\1"))',
+            lib_rs_orig,
+        )
+        if lib_rs != lib_rs_expected:
+            configure_error("In-tree windows crate lib.rs doesn't match original")
+
+        return dir
+
+    set_config("MOZ_WINDOWS_RS_DIR", windows_rs_dir)

tools/lint/license.yml

@@ -14,6 +14,9 @@ license:
         - toolkit/components/pdfjs/content/web/images/
         # We probably want a specific license
         - browser/extensions/webcompat/injections/
+        # Copied mostly verbatim from upstream. License is documented in
+        # Cargo.toml.
+        - build/rust/windows/src/lib.rs
         # Different license
         - build/pgo/blueprint/print.css
         # Different license

tools/lint/rustfmt.yml

@@ -5,6 +5,7 @@ rust:
     include:
         - '.'
     exclude:
+        - build/rust/windows/src/lib.rs
         - dom/webauthn/libudev-sys/
         - gfx/wr/peek-poke/
         - gfx/wr/webrender_build/