1# Copyright 2015 The Chromium Authors 2# Use of this source code is governed by a BSD-style license that can be 3# found in the LICENSE file. 4 5import("//build/config/apple/mobile_config.gni") 6import("//build/config/ios/ios_sdk_overrides.gni") 7import("//build/toolchain/rbe.gni") 8import("//build/toolchain/siso.gni") 9import("//build/toolchain/toolchain.gni") 10import("//build_overrides/build.gni") 11 12assert(current_os == "ios") 13assert(use_system_xcode, "Hermetic xcode doesn't work for ios.") 14 15declare_args() { 16 # SDK path to use. When empty this will use the default SDK based on the 17 # value of target_environment. 18 ios_bin_path = "" 19 ios_sdk_path = "" 20 ios_sdk_name = "" 21 ios_sdk_version = "" 22 ios_sdk_platform = "" 23 ios_sdk_platform_path = "" 24 ios_toolchains_path = "" 25 xcode_version = "" 26 xcode_version_int = 0 27 xcode_build = "" 28 machine_os_build = "" 29 30 # Set DEVELOPER_DIR while running sdk_info.py. 31 ios_sdk_developer_dir = "" 32 33 # Set to true if building an app extension. 34 ios_is_app_extension = false 35} 36 37# Building XCTests requires copying XCTRunner.app which is part of the iOS 38# SDK (and shipped inside Xcode.app) into the application. When using the 39# system installation of Xcode, those files are outside of the checkout. 40# Using absolute path works with gn, however the distributed build system 41# requires that all paths are relative to the checkout. This is faked by 42# using symbolic links to the SDK inside of Xcode. Additionally, each build 43# directory may use a distinct version of Xcode (e.g. to build with beta), 44# so the symlink needs to be present in the $root_build_dir. However, when 45# doing that, we need to list inputs pointing to file in $root_build_dir, 46# and gn requires all files in $root_build_dir to be listed as outputs of 47# another target. 48# 49# To fulfill all of those requirements, we 1. create symlinks pointing to 50# the SDK files in Xcode, 2. declare a target listing the files as outputs 51# (the target is a script that does nothing, it only pretends to create 52# the files but they already exists). 53# 54# This works, but results in some files in $root_build_dir being links to 55# files outside of the build directory. Running `ninja -t clean` will try 56# to delete those files breaking Xcode installation. The recommendation is 57# to use `gn clean` or `ninja -t cleandead` instead. 58# 59# This variable controls whether we create the symlink and the workaround 60# is needed or not. See https://crbug.com/336382863#comment16 for details. 61ios_use_xcode_symlinks = 62 ios_sdk_path == "" && use_system_xcode && use_remoteexec 63 64if (ios_sdk_path == "") { 65 # Compute default target. 66 if (target_environment == "simulator") { 67 ios_sdk_name = "iphonesimulator" 68 ios_sdk_platform = "iPhoneSimulator" 69 } else if (target_environment == "device") { 70 ios_sdk_name = "iphoneos" 71 ios_sdk_platform = "iPhoneOS" 72 } else if (target_environment == "catalyst") { 73 ios_sdk_name = "macosx" 74 ios_sdk_platform = "MacOSX" 75 } else { 76 assert(false, "unsupported environment: $target_environment") 77 } 78 79 ios_sdk_info_args = [ 80 "--get_sdk_info", 81 "--get_machine_info", 82 ] 83 ios_sdk_info_args += [ ios_sdk_name ] 84 if (ios_sdk_developer_dir != "") { 85 ios_sdk_info_args += [ 86 "--developer_dir", 87 ios_sdk_developer_dir, 88 ] 89 } 90 if (ios_use_xcode_symlinks) { 91 ios_sdk_info_args += [ 92 "--create_symlink_at", 93 "sdk/xcode_links", 94 "--root_build_dir", 95 root_build_dir, 96 ] 97 } 98 script_name = "//build/config/apple/sdk_info.py" 99 _ios_sdk_result = exec_script(script_name, ios_sdk_info_args, "scope") 100 ios_bin_path = 101 rebase_path("${_ios_sdk_result.toolchains_path}/usr/bin/", root_build_dir) 102 ios_sdk_path = _ios_sdk_result.sdk_path 103 ios_sdk_platform_path = _ios_sdk_result.sdk_platform_path 104 ios_sdk_version = _ios_sdk_result.sdk_version 105 ios_sdk_build = _ios_sdk_result.sdk_build 106 ios_toolchains_path = _ios_sdk_result.toolchains_path 107 xcode_version = _ios_sdk_result.xcode_version 108 xcode_version_int = _ios_sdk_result.xcode_version_int 109 xcode_build = _ios_sdk_result.xcode_build 110 machine_os_build = _ios_sdk_result.machine_os_build 111 if (target_environment == "simulator") { 112 # This is weird, but Xcode sets DTPlatformBuild to an empty field for 113 # simulator builds. 114 ios_platform_build = "" 115 } else { 116 ios_platform_build = ios_sdk_build 117 } 118} 119 120_sdk_root = rebase_path(ios_sdk_path, root_build_dir) 121ios_sdk_logs = [ "ios_sdk_path=${_sdk_root}" ] 122