aboutsummaryrefslogtreecommitdiffstats
path: root/build.py
blob: 34cc19f5b68dc4c0a7676403b218e71d8de9bb4c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
#!/usr/bin/env python
#
# Copyright (C) 2015 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
from __future__ import print_function

import argparse
import multiprocessing
import os
import subprocess
import sys


def android_path(path=''):
    top = os.getenv('ANDROID_BUILD_TOP', '')
    return os.path.realpath(os.path.join(top, path))


def get_default_package_dir():
    return android_path('out/ndk')


def get_default_host():
    if sys.platform in ('linux', 'linux2'):
        return 'linux'
    elif sys.platform == 'darwin':
        return 'darwin'
    else:
        raise RuntimeError('Unsupported host: {}'.format(sys.platform))


ALL_TOOLCHAINS = (
    'arm-linux-androideabi', 'aarch64-linux-android',
    'mipsel-linux-android', 'mips64el-linux-android',
    'x86', 'x86_64',
)


class ArgParser(argparse.ArgumentParser):
    def __init__(self):
        super(ArgParser, self).__init__(
            description='Builds GCC for Android.')

        self.add_argument(
            '--host', choices=('darwin', 'linux', 'windows', 'windows64'),
            help='Build binaries for given OS (e.g. linux).')
        self.add_argument(
            '--package-dir', help='Directory to place the packaged GCC.',
            default=get_default_package_dir())
        self.add_argument(
            '--toolchain', choices=ALL_TOOLCHAINS,
            help='Toolchain to build. Builds all if not present.')


def toolchain_to_arch(toolchain):
    return {
        'arm-linux-androideabi': 'arm',
        'aarch64-linux-android': 'arm64',
        'mipsel-linux-android': 'mips',
        'mips64el-linux-android': 'mips64',
        'x86': 'x86',
        'x86_64': 'x86_64',
    }[toolchain]


def default_api_level(arch):
    if '64' in arch:
        return 21
    else:
        return 9


def sysroot_path(toolchain):
    arch = toolchain_to_arch(toolchain)
    version = default_api_level(arch)

    prebuilt_ndk = 'prebuilts/ndk/current'
    sysroot_subpath = 'platforms/android-{}/arch-{}'.format(version, arch)
    return android_path(os.path.join(prebuilt_ndk, sysroot_subpath))


def main():
    args = ArgParser().parse_args()

    if 'ANDROID_BUILD_TOP' not in os.environ:
        top = os.path.join(os.path.dirname(__file__), '../..')
        os.environ['ANDROID_BUILD_TOP'] = os.path.realpath(top)

    os.chdir(android_path('toolchain/gcc'))

    toolchain_path = android_path('toolchain')
    ndk_path = android_path('ndk')

    GCC_VERSION = '4.9'
    jobs_arg = '-j{}'.format(multiprocessing.cpu_count() * 2)

    package_dir_arg = '--package-dir={}'.format(args.package_dir)

    toolchains = ALL_TOOLCHAINS
    if args.toolchain is not None:
        toolchains = [args.toolchain]

    host = args.host
    if host is None:
        host = get_default_host()

    ndk_build_tools_path = android_path('ndk/build/tools')
    build_env = dict(os.environ)
    build_env['NDK_BUILDTOOLS_PATH'] = ndk_build_tools_path
    build_env['ANDROID_NDK_ROOT'] = ndk_path

    print('Building {} toolchains: {}'.format(host, ' '.join(toolchains)))
    for toolchain in toolchains:
        toolchain_name = '-'.join([toolchain, GCC_VERSION])
        sysroot_arg = '--sysroot={}'.format(sysroot_path(toolchain))
        build_cmd = [
            'bash', 'build-gcc.sh', toolchain_path, ndk_path, toolchain_name,
            package_dir_arg, '--verbose', jobs_arg, sysroot_arg,
        ]

        if host in ('windows', 'windows64'):
            build_cmd.append('--mingw')

        if host != 'windows':
            build_cmd.append('--try-64')

        subprocess.check_call(build_cmd, env=build_env)

if __name__ == '__main__':
    main()