sysroot.gni (2948B)
1 # Copyright 2013 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 5 # This header file defines the "sysroot" variable which is the absolute path 6 # of the sysroot. If no sysroot applies, the variable will be an empty string. 7 8 declare_args() { 9 # The path of the sysroot that is applied when compiling using the target 10 # toolchain. 11 target_sysroot = "" 12 13 # The path to directory containing linux sysroot images. 14 target_sysroot_dir = "//chromium/build/linux" 15 16 # The path of the sysroot for the current toolchain. If empty, default 17 # sysroot is used. 18 sysroot = "" 19 20 # Controls default is_linux sysroot. If set to true, and sysroot 21 # is empty, default sysroot is calculated. 22 use_sysroot = 23 target_cpu == "x86" || target_cpu == "x64" || target_cpu == "arm" || 24 target_cpu == "arm64" || target_cpu == "mipsel" || 25 target_cpu == "mips64el" || (target_cpu == "riscv64" && is_android) 26 } 27 28 if (sysroot == "") { 29 if (current_os == target_os && target_cpu == target_cpu && 30 target_sysroot != "") { 31 sysroot = target_sysroot 32 } else if (is_android) { 33 import("//chromium/build/config/android/config.gni") 34 35 # Android uses unified headers, and thus a single compile time sysroot 36 sysroot = "$android_toolchain_root/sysroot" 37 } else if ((is_linux || is_chromeos) && use_sysroot) { 38 # By default build against a sysroot image downloaded from Cloud Storage 39 # during gclient runhooks. 40 if (target_cpu == "x64") { 41 sysroot = "$target_sysroot_dir/debian_bullseye_amd64-sysroot" 42 } else if (target_cpu == "x86") { 43 sysroot = "$target_sysroot_dir/debian_bullseye_i386-sysroot" 44 } else if (target_cpu == "mipsel") { 45 sysroot = "$target_sysroot_dir/debian_bullseye_mipsel-sysroot" 46 } else if (target_cpu == "mips64el") { 47 sysroot = "$target_sysroot_dir/debian_bullseye_mips64el-sysroot" 48 } else if (target_cpu == "arm") { 49 sysroot = "$target_sysroot_dir/debian_bullseye_armhf-sysroot" 50 } else if (target_cpu == "arm64") { 51 sysroot = "$target_sysroot_dir/debian_bullseye_arm64-sysroot" 52 } else { 53 assert(false, "No linux sysroot for cpu: $target_cpu") 54 } 55 56 if (sysroot != "") { 57 _script_arch = target_cpu 58 if (_script_arch == "x86") { 59 _script_arch = "i386" 60 } else if (_script_arch == "x64") { 61 _script_arch = "amd64" 62 } 63 #assert( 64 # path_exists(sysroot), 65 # "Missing sysroot ($sysroot). To fix, run: build/linux/sysroot_scripts/install-sysroot.py --arch=$_script_arch") 66 } 67 } else if (is_mac) { 68 import("//chromium/build/config/mac/mac_sdk.gni") 69 sysroot = mac_sdk_path 70 } else if (is_ios) { 71 import("//chromium/build/config/ios/ios_sdk.gni") 72 sysroot = ios_sdk_path 73 } else if (is_fuchsia) { 74 import("//chromium/build/config/fuchsia/gn_configs.gni") 75 sysroot = "${fuchsia_arch_root}/sysroot" 76 } 77 }