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|
--!A cross-platform build utility based on Lua
--
-- 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.
--
-- Copyright (C) 2015-2020, TBOOX Open Source Group.
--
-- @author ruki
-- @file find_ndk.lua
--
-- imports
import("lib.detect.cache")
import("core.base.option")
import("core.base.global")
import("core.project.config")
import("lib.detect.find_directory")
-- find ndk directory
function _find_ndkdir(sdkdir)
-- get ndk directory
if not sdkdir then
sdkdir = os.getenv("ANDROID_NDK_HOME") or os.getenv("ANDROID_NDK_ROOT")
if not sdkdir and is_host("macosx") then
sdkdir = "~/Library/Android/sdk/ndk-bundle"
end
end
-- get ndk directory
if sdkdir and os.isdir(sdkdir) then
return path.translate(sdkdir)
end
end
-- find the sdk version of ndk
function _find_ndk_sdkver(sdkdir, bindir, arch)
-- uses llvm stl?
local use_llvm = false
local ndk_cxxstl = config.get("ndk_cxxstl")
if ndk_cxxstl then
if ndk_cxxstl:startswith("llvmstl") then
use_llvm = true
end
elseif bindir and bindir:find("llvm", 1, true) then
use_llvm = true
end
-- try to select the best compatible version
local sdkver = "16"
if use_llvm or arch == "arm64-v8a" then
sdkver = "21"
end
if os.isdir(path.join(sdkdir, "platforms", "android-" .. sdkver)) then
return sdkver
end
-- find the max version
local sdkver_max = 0
for _, sdkdir in ipairs(os.dirs(path.join(sdkdir, "platforms", "android-*"))) do
-- get version
local filename = path.filename(sdkdir)
local version, count = filename:gsub("android%-", "")
if count > 0 then
-- get the max version
local sdkver_now = tonumber(version)
if sdkver_now > sdkver_max then
sdkver_max = sdkver_now
end
end
end
-- get the max sdk version
return sdkver_max > 0 and tostring(sdkver_max) or nil
end
-- find the toolchains version of ndk
function _find_ndk_toolchains_ver(bindir)
return bindir:match("%-(%d*%.%d*)[/\\]")
end
-- find the ndk toolchain
function _find_ndk(sdkdir, arch, ndk_sdkver, ndk_toolchains_ver)
-- find ndk root directory
sdkdir = _find_ndkdir(sdkdir)
if not sdkdir then
return {}
end
-- get cross
local crosses =
{
["armv5te"] = "arm-linux-androideabi-" -- deprecated
, ["armv7-a"] = "arm-linux-androideabi-" -- deprecated
, ["armeabi"] = "arm-linux-androideabi-" -- removed in ndk r17
, ["armeabi-v7a"] = "arm-linux-androideabi-"
, ["arm64-v8a"] = "aarch64-linux-android-"
, i386 = "i686-linux-android-" -- deprecated
, x86 = "i686-linux-android-"
, x86_64 = "x86_64-linux-android-"
, mips = "mips-linux-android-" -- removed in ndk r17
, mips64 = "mips64-linux-android-" -- removed in ndk r17
}
local cross = crosses[arch]
-- get gcc toolchain sub-directory
local gcc_toolchain_subdirs =
{
["armv5te"] = "arm-linux-androideabi-*"
, ["armv7-a"] = "arm-linux-androideabi-*"
, ["armeabi"] = "arm-linux-androideabi-*"
, ["armeabi-v7a"] = "arm-linux-androideabi-*"
, ["arm64-v8a"] = "aarch64-linux-android-*"
, i386 = "x86-*"
, x86 = "x86-*"
, x86_64 = "x86_64-*"
, mips = "mipsel-linux-android-*"
, mips64 = "mips64el-linux-android-*"
}
local gcc_toolchain_subdir = gcc_toolchain_subdirs[arch] or "arm-linux-androideabi-*"
-- find the binary directory
local bindir = find_directory("bin", path.join(sdkdir, "toolchains", "llvm", "prebuilt", "*")) -- larger than ndk r16
if not bindir then
bindir = find_directory("bin", path.join(sdkdir, "toolchains", gcc_toolchain_subdir, "prebuilt", "*"))
end
if not bindir then
return {}
end
-- find the sdk version
local sdkver = ndk_sdkver or _find_ndk_sdkver(sdkdir, bindir, arch)
if not sdkver then
return {}
end
-- find the gcc toolchain
local gcc_toolchain = find_directory("bin", path.join(sdkdir, "toolchains", gcc_toolchain_subdir, "prebuilt", "*"))
if gcc_toolchain then
gcc_toolchain = path.directory(gcc_toolchain)
end
-- find the toolchains version
local toolchains_ver = ndk_toolchains_ver or _find_ndk_toolchains_ver(gcc_toolchain or bindir)
if not toolchains_ver then
return {}
end
-- get ndk version, e.g. r16b, ..
local ndkver = nil
local ndk_version_header = path.join(sdkdir, "sysroot/usr/include/android/ndk-version.h")
if os.isfile(ndk_version_header) then
local ndk_version_info = io.readfile(ndk_version_header)
if ndk_version_info then
ndk_version_info = ndk_version_info:match("#define __NDK_MAJOR__ (%d+)")
if ndk_version_info then
ndkver = tonumber(ndk_version_info)
end
end
end
-- ok?
return {ndkver = ndkver, sdkdir = sdkdir, bindir = bindir, cross = cross, sdkver = sdkver, gcc_toolchain = gcc_toolchain, toolchains_ver = toolchains_ver}
end
-- find ndk toolchains
--
-- @param sdkdir the ndk directory
-- @param opt the argument options
-- e.g. {arch = "[armeabi|armeabi-v7a|arm64-v8a]", verbose = true, force = false, sdkver = 19, toolchains_ver = "4.9"}
--
-- @return the ndk toolchains. e.g. {bindir = .., cross = ..}
--
-- @code
--
-- local toolchain = find_ndk("/xxx/android-ndk-r10e")
-- local toolchain = find_ndk("/xxx/android-ndk-r10e", {arch = "arm64-v8a"})
--
-- @endcode
--
function main(sdkdir, opt)
-- init arguments
opt = opt or {}
-- attempt to load cache first
local key = "detect.sdks.find_ndk"
local cacheinfo = cache.load(key)
if not opt.force and cacheinfo.ndk and cacheinfo.ndk.sdkdir and os.isdir(cacheinfo.ndk.sdkdir) then
return cacheinfo.ndk
end
-- get arch
local arch = opt.arch or config.get("arch") or "armv7-a"
-- find ndk
local ndk = _find_ndk(sdkdir or config.get("ndk") or global.get("ndk"), arch, opt.sdkver or config.get("ndk_sdkver"), opt.toolchains_ver or config.get("ndk_toolchains_ver"))
if ndk and ndk.sdkdir then
-- save to config
config.set("ndk", ndk.sdkdir, {force = true, readonly = true})
config.set("ndkver", ndk.ndkver, {force = true, readonly = true})
config.set("ndk_sdkver", ndk.sdkver, {force = true, readonly = true})
config.set("ndk_toolchains_ver", ndk.toolchains_ver, {force = true, readonly = true})
-- trace
if opt.verbose or option.get("verbose") then
cprint("checking for the NDK directory ... ${color.success}%s", ndk.sdkdir)
cprint("checking for the SDK version of NDK ... ${color.success}%s", ndk.sdkver)
cprint("checking for the toolchains version of NDK ... ${color.success}%s", ndk.toolchains_ver)
end
else
-- trace
if opt.verbose or option.get("verbose") then
cprint("checking for the NDK directory ... ${color.nothing}${text.nothing}")
end
end
-- save to cache
cacheinfo.ndk = ndk or false
cache.save(key, cacheinfo)
-- ok?
return ndk
end
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