diff options
Diffstat (limited to 'third_party/libwebrtc/build/config/ios/BUILD.gn')
| -rw-r--r-- | third_party/libwebrtc/build/config/ios/BUILD.gn | 264 |
1 files changed, 264 insertions, 0 deletions
diff --git a/third_party/libwebrtc/build/config/ios/BUILD.gn b/third_party/libwebrtc/build/config/ios/BUILD.gn new file mode 100644 index 0000000000..525c439e7e --- /dev/null +++ b/third_party/libwebrtc/build/config/ios/BUILD.gn @@ -0,0 +1,264 @@ +# Copyright 2014 The Chromium Authors. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +import("//build/config/ios/ios_sdk.gni") +import("//build/toolchain/goma.gni") +import("//build/toolchain/toolchain.gni") +import("//build_overrides/build.gni") + +declare_args() { + # Enabling this option makes clang compile to an intermediate + # representation ("bitcode"), and not to native code. This is preferred + # when including WebRTC in the apps that will be sent to Apple's App Store + # and mandatory for the apps that run on watchOS or tvOS. + # The option only works when building with Xcode (use_xcode_clang = true). + # Mimicking how Xcode handles it, the production builds (is_debug = false) + # get real bitcode sections added, while the debug builds (is_debug = true) + # only get bitcode-section "markers" added in them. + enable_ios_bitcode = false +} + +# This is included by reference in the //build/config/compiler config that +# is applied to all targets. It is here to separate out the logic. +config("compiler") { + # These flags are shared between the C compiler and linker. + common_flags = [] + + # CPU architecture. + if (target_cpu == "x64") { + triplet_cpu = "x86_64" + } else if (target_cpu == "x86") { + triplet_cpu = "i386" + } else if (target_cpu == "arm" || target_cpu == "armv7") { + triplet_cpu = "armv7" + } else if (target_cpu == "arm64") { + triplet_cpu = "arm64" + } else { + assert(false, "unsupported cpu: $target_cpu") + } + + # Environment. + if (target_environment == "simulator") { + triplet_environment = "-simulator" + } else if (target_environment == "device") { + triplet_environment = "" + } else if (target_environment == "catalyst") { + triplet_environment = "-macabi" + } else { + assert(false, "unsupported environment: $target_environment") + } + + # OS. + triplet_os = "apple-ios" + + # Set target. + common_flags = [ + "-target", + "$triplet_cpu-$triplet_os$ios_deployment_target$triplet_environment", + ] + + # This is here so that all files get recompiled after an Xcode update. + # (defines are passed via the command line, and build system rebuild things + # when their commandline changes). Nothing should ever read this define. + defines = [ "CR_XCODE_VERSION=$xcode_version" ] + + asmflags = common_flags + cflags = common_flags + swiftflags = common_flags + + swiftflags += [ + "-swift-version", + "5", + ] + + # Without this, the constructors and destructors of a C++ object inside + # an Objective C struct won't be called, which is very bad. + cflags_objcc = [ "-fobjc-call-cxx-cdtors" ] + + ldflags = common_flags +} + +# This is included by reference in the //build/config/compiler:runtime_library +# config that is applied to all targets. It is here to separate out the logic +# that is iOS-only. Please see that target for advice on what should go in +# :runtime_library vs. :compiler. +config("runtime_library") { + # The variable ios_sdk_path is relative to root_build_dir when using Goma RBE + # and system Xcode (since Goma RBE only supports paths relative to source). + # Rebase the value in that case since gn does not convert paths in compiler + # flags (since it is not aware they are paths). + _sdk_root = ios_sdk_path + if (use_system_xcode && use_goma) { + _sdk_root = rebase_path(ios_sdk_path, root_build_dir) + } + + common_flags = [ + "-isysroot", + _sdk_root, + ] + swiftflags = [ + "-sdk", + _sdk_root, + ] + + if (target_environment == "catalyst") { + common_flags += [ + "-isystem", + "$_sdk_root/System/iOSSupport/usr/include", + "-iframework", + "$_sdk_root/System/iOSSupport/System/Library/Frameworks", + ] + } + + if (use_xcode_clang && enable_ios_bitcode) { + if (is_debug) { + common_flags += [ "-fembed-bitcode-marker" ] + } else { + common_flags += [ "-fembed-bitcode" ] + } + } + + asmflags = common_flags + cflags = common_flags + ldflags = common_flags +} + +config("ios_executable_flags") { + ldflags = [] + + # On "catalyst", the bundle structure is different (uses the same structure + # as a regular macOS app), so an additional -rpath is required. + if (target_environment == "catalyst") { + ldflags += [ "-Wl,-rpath,@loader_path/../Frameworks" ] + } + + ldflags += [ "-Wl,-rpath,@executable_path/Frameworks" ] +} + +config("ios_extension_executable_flags") { + configs = default_executable_configs + + ldflags = [ + "-e", + "_NSExtensionMain", + "-fapplication-extension", + ] + + # On "catalyst", the bundle structure is different (uses the same structure + # as a regular macOS app), so an additional -rpath is required. + if (target_environment == "catalyst") { + ldflags += [ "-Wl,-rpath,@loader_path/../../../../Frameworks" ] + } + + ldflags += [ "-Wl,-rpath,@executable_path/../../Frameworks" ] +} + +config("ios_dynamic_flags") { + ldflags = [ + # Always load Objective-C categories and class. + "-Wl,-ObjC", + ] + + # The path to the Swift compatibility libraries (required to run code built + # with version N of the SDK on older version of the OS) is relative to the + # toolchains directory and changes with the environment. + _swift_compatibility_libs_dir_prefix = "$ios_toolchains_path/usr/lib/swift" + if (target_environment == "simulator") { + _swift_compatibility_libs_dir = + "$_swift_compatibility_libs_dir_prefix/iphonesimulator" + } else if (target_environment == "device") { + _swift_compatibility_libs_dir = + "$_swift_compatibility_libs_dir_prefix/iphoneos" + } else if (target_environment == "catalyst") { + _swift_compatibility_libs_dir = + "$_swift_compatibility_libs_dir_prefix/maccatalyst" + } + + lib_dirs = [ + "$ios_sdk_path/usr/lib/swift", + _swift_compatibility_libs_dir, + ] +} + +config("ios_shared_library_flags") { + ldflags = [ + "-Wl,-rpath,@executable_path/Frameworks", + "-Wl,-rpath,@loader_path/Frameworks", + ] +} + +config("disable_implicit_retain_self_warning") { + cflags_objc = [ "-Wno-implicit-retain-self" ] + cflags_objcc = cflags_objc +} + +config("xctest_config") { + # Use -iframework for XCTest.framework so that the compiler will treat it as a + # system framework and ignore warnings in XCTest framework headers. + common_flags = [ + "-iframework", + rebase_path("$ios_sdk_platform_path/Developer/Library/Frameworks", + root_build_dir), + ] + cflags = common_flags + ldflags = common_flags + + frameworks = [ + "Foundation.framework", + "XCTest.framework", + ] +} + +group("xctest") { + public_configs = [ ":xctest_config" ] +} + +_xctrunner_path = + "$ios_sdk_platform_path/Developer/Library/Xcode/Agents/XCTRunner.app" + +# When building with Goma RBE, $ios_sdk_platform_path corresponds to a symlink +# below $root_build_dir that points to the real SDK to use. Because the files +# are below $root_build_dir, it is not possible to list them as a target input +# without gn complaining (as it can't find a target creating those files). +# +# The symlinks are created by //build/config/apple/sdk_info.py script invoked +# via exec_script() from //build/config/{ios/ios_sdk.gni,mac/mac_sdk.gni}. +# As the invocation is done by exec_script, there is no target that can list +# those files as output. +# +# To workaround this, add a target that pretends to create those files +# (but does nothing). See https://crbug.com/1061487 for why this is needed. +if (use_system_xcode && use_goma) { + action("copy_xctrunner_app") { + testonly = true + script = "//build/noop.py" + outputs = [ + "$_xctrunner_path/Info.plist", + "$_xctrunner_path/PkgInfo", + "$_xctrunner_path/XCTRunner", + ] + } +} + +# When creating the test runner for an XCUITest, the arm64e slice of the binary +# must be removed (at least until the app ships with arm64e slice which is not +# yet supported by Apple). +action("xctest_runner_without_arm64e") { + testonly = true + script = "//build/config/ios/strip_arm64e.py" + sources = [ "$_xctrunner_path/XCTRunner" ] + outputs = [ "$target_out_dir/XCTRunner" ] + args = [ + "--output", + rebase_path(outputs[0], root_build_dir), + "--input", + rebase_path(sources[0], root_build_dir), + "--xcode-version", + xcode_version, + ] + + if (use_system_xcode && use_goma) { + deps = [ ":copy_xctrunner_app" ] + } +} |