| #!/usr/bin/env python |
| |
| # Copyright (c) 2012 The Dart Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| """ |
| This script performs the final link step for Android NDK executables. |
| Usage: |
| ./android_link {arm,arm64,ia32} {executable,library,shared_library} |
| {host,target} [linker args] |
| """ |
| |
| import os |
| import subprocess |
| import sys |
| |
| # Figure out where we are. |
| SCRIPT_DIR = os.path.dirname(sys.argv[0]) |
| DART_ROOT = os.path.realpath(os.path.join(SCRIPT_DIR, '..')) |
| THIRD_PARTY_ROOT = os.path.join(DART_ROOT, 'third_party') |
| |
| |
| def CheckDirExists(path, docstring): |
| if not os.path.isdir(path): |
| raise Exception('Could not find %s directory %s' |
| % (docstring, path)) |
| |
| |
| def execute(args): |
| process = subprocess.Popen(args) |
| process.wait() |
| return process.returncode |
| |
| |
| def main(): |
| if len(sys.argv) < 5: |
| raise Exception(sys.argv[0] + " failed: not enough arguments") |
| |
| # gyp puts -shared first in a shared_library link. Remove it. |
| if sys.argv[1] == '-shared': |
| sys.argv.remove('-shared') |
| |
| # Grab the command line arguments. |
| target_arch = sys.argv[1] |
| link_type = sys.argv[2] |
| link_target = sys.argv[3] |
| link_args = sys.argv[4:] |
| |
| # Check arguments. |
| if target_arch not in ['arm', 'arm64', 'ia32', 'x64', 'simdbc', 'simdbc64']: |
| raise Exception(sys.argv[0] + |
| " first argument must be 'arm', 'arm64', 'ia32', 'x64', " |
| "'simdbc', or 'simdbc64'") |
| if link_type not in ['executable', 'library', 'shared_library']: |
| raise Exception(sys.argv[0] + |
| " second argument must be 'executable' or 'library'") |
| if link_target not in ['host', 'target']: |
| raise Exception(sys.argv[0] + " third argument must be 'host' or 'target'") |
| |
| # TODO(zra): Figure out how to link a shared library with the NDK |
| # cross-compilers. For now, we disable it by generating empty files |
| # for the results. We disable it here to avoid inspecting the OS type in |
| # the gyp files. |
| if link_type == 'shared_library': |
| print "NOT linking shared library for Android." |
| o_index = link_args.index('-o') |
| output = os.path.join(DART_ROOT, link_args[o_index + 1]) |
| open(output, 'a').close() |
| sys.exit(0) |
| |
| # Set up path to the Android NDK. |
| CheckDirExists(THIRD_PARTY_ROOT, 'third party tools') |
| android_tools = os.path.join(THIRD_PARTY_ROOT, 'android_tools') |
| CheckDirExists(android_tools, 'Android tools') |
| android_ndk_root = os.path.join(android_tools, 'ndk') |
| CheckDirExists(android_ndk_root, 'Android NDK') |
| |
| # Set up the directory of the Android NDK cross-compiler toolchain. |
| toolchain_arch = 'arm-linux-androideabi-4.9' |
| if target_arch == 'arm64' or target_arch == "simdbc64": |
| toolchain_arch = 'aarch64-linux-android-4.9' |
| if target_arch == 'ia32': |
| toolchain_arch = 'x86-4.9' |
| if target_arch == 'x64': |
| toolchain_arch = 'x86_64-4.9' |
| toolchain_dir = 'linux-x86_64' |
| android_toolchain = os.path.join(android_ndk_root, |
| 'toolchains', toolchain_arch, |
| 'prebuilt', toolchain_dir, 'bin') |
| CheckDirExists(android_toolchain, 'Android toolchain') |
| |
| # Set up the path to the linker executable. |
| android_linker = os.path.join(android_toolchain, 'arm-linux-androideabi-g++') |
| if target_arch == 'arm64' or target_arch == "simdbc64": |
| android_linker = os.path.join( |
| android_toolchain, 'aarch64-linux-android-c++') |
| if target_arch == 'ia32': |
| android_linker = os.path.join(android_toolchain, 'i686-linux-android-g++') |
| if target_arch == 'x64': |
| android_linker = os.path.join(android_toolchain, 'x86_64-linux-android-g++') |
| |
| # Grab the path to libgcc.a, which we must explicitly add to the link, |
| # by invoking the cross-compiler with the -print-libgcc-file-name flag. |
| android_gcc = os.path.join(android_toolchain, 'arm-linux-androideabi-gcc') |
| if target_arch == 'arm64' or target_arch == "simdbc64": |
| android_gcc = os.path.join(android_toolchain, 'aarch64-linux-android-gcc') |
| if target_arch == 'ia32': |
| android_gcc = os.path.join(android_toolchain, 'i686-linux-android-gcc') |
| if target_arch == 'x64': |
| android_gcc = os.path.join(android_toolchain, 'x86_64-linux-android-gcc') |
| android_libgcc = subprocess.check_output( |
| [android_gcc, '-print-libgcc-file-name']).strip() |
| |
| # Set up the path to the system root directory, which is where we'll find the |
| # Android specific system includes and libraries. |
| android_ndk_sysroot = os.path.join(android_ndk_root, |
| 'platforms', 'android-14', 'arch-arm') |
| libdir = 'lib' |
| if target_arch == 'arm64' or target_arch == "simdbc64": |
| android_ndk_sysroot = os.path.join(android_ndk_root, |
| 'platforms', 'android-21', 'arch-arm64') |
| if target_arch == 'ia32': |
| android_ndk_sysroot = os.path.join(android_ndk_root, |
| 'platforms', 'android-14', 'arch-x86') |
| if target_arch == 'x64': |
| android_ndk_sysroot = os.path.join(android_ndk_root, |
| 'platforms', 'android-21', 'arch-x86_64') |
| libdir = 'lib64' |
| CheckDirExists(android_ndk_sysroot, 'Android sysroot') |
| android_ndk_lib = os.path.join(android_ndk_sysroot, 'usr', libdir) |
| crtend_android = os.path.join(android_ndk_lib, 'crtend_android.o') |
| |
| if link_target == 'target': |
| # We meddle with the android link command line here because gyp does not |
| # allow configurations to modify link_settings, or set variables. |
| |
| # Add and remove libraries as listed in configurations_android.gypi |
| libs_to_rm = ['-lrt', '-lpthread',] |
| libs_to_add = ['-lstlport_static', android_libgcc, '-lc', '-ldl', |
| '-lstdc++', '-lm',] |
| |
| # Add crtend_android to end if we are linking an executable. |
| if link_type == 'executable': |
| libs_to_add.extend(['-llog', '-lz', crtend_android]) |
| |
| # Filter out -l libs and add the right Android ones. |
| link_args = [i for i in link_args if i not in libs_to_rm] |
| link_args.extend(libs_to_add) |
| |
| # Filter out tcmalloc. |
| link_args = [i for i in link_args if "tcmalloc" not in i] |
| |
| link_args.insert(0, android_linker) |
| else: |
| link_args.extend(['-ldl', '-lrt']) |
| link_args.insert(0, 'g++') |
| |
| sys.exit(execute(link_args)) |
| |
| if __name__ == '__main__': |
| main() |