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      1 # Copyright (C) 2017 The Android Open Source Project
      2 #
      3 # Licensed under the Apache License, Version 2.0 (the "License");
      4 # you may not use this file except in compliance with the License.
      5 # You may obtain a copy of the License at
      6 #
      7 #      http://www.apache.org/licenses/LICENSE-2.0
      8 #
      9 # Unless required by applicable law or agreed to in writing, software
     10 # distributed under the License is distributed on an "AS IS" BASIS,
     11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     12 # See the License for the specific language governing permissions and
     13 # limitations under the License.
     14 
     15 declare_args() {
     16   android_api_level = 21
     17   android_ndk_root = rebase_path("//buildtools/ndk")
     18   _android_toolchain_version = "4.9"
     19 
     20   if (host_os == "linux") {
     21     android_host = "linux-x86_64"
     22   } else if (host_os == "mac") {
     23     android_host = "darwin-x86_64"
     24   } else {
     25     assert(false, "Need Android toolchain support for your build OS.")
     26   }
     27 }
     28 
     29 declare_args() {
     30   android_llvm_dir = "$android_ndk_root/toolchains/llvm/prebuilt/$android_host"
     31   android_clangrt_dir = "$android_llvm_dir/lib64/clang/5.0/lib/linux"
     32   android_compile_sysroot = "$android_ndk_root/sysroot/usr/include"
     33 
     34   if (current_cpu == "x86") {
     35     android_abi_target = "i686-linux-androideabi"
     36     android_compile_sysroot_subdir = "i686-linux-android"
     37     android_link_sysroot_subdir =
     38         "platforms/android-${android_api_level}/arch-x86"
     39     android_prebuilt_arch = "android-x86"
     40     android_toolchain_root = "$android_ndk_root/toolchains/x86-${_android_toolchain_version}/prebuilt/$android_host"
     41     android_llvm_arch = "i686"
     42   } else if (current_cpu == "arm") {
     43     android_abi_target = "arm-linux-androideabi"
     44     android_compile_sysroot_subdir = "arm-linux-androideabi"
     45     android_link_sysroot_subdir =
     46         "platforms/android-${android_api_level}/arch-arm"
     47     android_prebuilt_arch = "android-arm"
     48     android_toolchain_root = "$android_ndk_root/toolchains/arm-linux-androideabi-${_android_toolchain_version}/prebuilt/$android_host"
     49     android_llvm_arch = "arm"
     50   } else if (current_cpu == "x64") {
     51     android_abi_target = "x86_64-linux-android"
     52     android_compile_sysroot_subdir = "x86_64-linux-android"
     53     android_link_sysroot_subdir =
     54         "platforms/android-${android_api_level}/arch-x86_64"
     55     android_prebuilt_arch = "android-x86_64"
     56     android_toolchain_root = "$android_ndk_root/toolchains/x86_64-${_android_toolchain_version}/prebuilt/$android_host"
     57     android_llvm_arch = "x86_64"
     58   } else if (current_cpu == "arm64") {
     59     android_abi_target = "aarch64-linux-android"
     60     android_compile_sysroot_subdir = "aarch64-linux-android"
     61     android_link_sysroot_subdir =
     62         "platforms/android-${android_api_level}/arch-arm64"
     63     android_prebuilt_arch = "android-arm64"
     64     android_toolchain_root = "$android_ndk_root/toolchains/aarch64-linux-android-${_android_toolchain_version}/prebuilt/$android_host"
     65     android_llvm_arch = "aarch64"
     66   } else {
     67     assert(false, "Need android libgcc support for this arch.")
     68   }
     69 
     70   if (current_cpu == "x86") {
     71     android_app_abi = "x86"
     72   } else if (current_cpu == "arm") {
     73     android_app_abi = "armeabi-v7a"
     74   } else if (current_cpu == "x64") {
     75     android_app_abi = "x86_64"
     76   } else if (current_cpu == "arm64") {
     77     android_app_abi = "arm64-v8a"
     78   } else {
     79     assert(false, "Unknown ABI: " + current_cpu)
     80   }
     81 }
     82