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Add Android to Travis testing.

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This commit is contained in:
Jeffrey Walton 2020-02-29 00:21:04 -05:00
parent 93189d3083
commit 05041f9cff
7 changed files with 787 additions and 3 deletions
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90
.travis.yml
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@ -80,6 +80,58 @@ jobs:
compiler: clang
arch: s390x
dist: bionic
- os: linux
name: Android armv7a, Linux, Amd64
compiler: clang
arch: amd64
dist: bionic
env:
- TEST_ANDROID=yes
- AUTOTOOLS_HOST=armv7a-linux-androideabi
- OPENSSL_HOST=android-arm
- ANDROID_CPU=armv7a
- ANDROID_API=23
- ANDROID_SDK_ROOT="$HOME/android-sdk"
- ANDROID_NDK_ROOT="$HOME/android-ndk"
- os: linux
name: Android aarch64, Linux, Amd64
compiler: clang
arch: amd64
dist: bionic
env:
- TEST_ANDROID=yes
- AUTOTOOLS_HOST=aarch64-linux-android
- OPENSSL_HOST=android-arm64
- ANDROID_CPU=aarch64
- ANDROID_API=23
- ANDROID_SDK_ROOT="$HOME/android-sdk"
- ANDROID_NDK_ROOT="$HOME/android-ndk"
- os: linux
name: Android x86, Linux, Amd64
compiler: clang
arch: amd64
dist: bionic
env:
- TEST_ANDROID=yes
- AUTOTOOLS_HOST=i686-linux-android
- OPENSSL_HOST=android-x86
- ANDROID_CPU=x86
- ANDROID_API=23
- ANDROID_SDK_ROOT="$HOME/android-sdk"
- ANDROID_NDK_ROOT="$HOME/android-ndk"
- os: linux
name: Android x86_64, Linux, Amd64
compiler: clang
arch: amd64
dist: bionic
env:
- TEST_ANDROID=yes
- AUTOTOOLS_HOST=x86_64-linux-android
- OPENSSL_HOST=android-x86_64
- ANDROID_CPU=x86_64
- ANDROID_API=23
- ANDROID_SDK_ROOT="$HOME/android-sdk"
- ANDROID_NDK_ROOT="$HOME/android-ndk"
script:
- |
@ -89,11 +141,43 @@ script:
elif [ "$TEST_ASAN" = "yes" ]; then
export CFLAGS="-DNDEBUG -g2 -O3 -fsanitize=address"
./configure
elif [ "$TEST_ANDROID" = "yes" ]; then
export AUTOTOOLS_BUILD="$(./config.guess)"
if ! ./android/install_ndk.sh ; then
echo "Failed to install Android SDK and NDK"
exit 1
fi
if ! source ./android/setenv_android.sh "$ANDROID_CPU"; then
echo "Failed to set Android environment"
exit 1
fi
if ! ./android/install_openssl.sh; then
echo "Failed to build and install OpenSSL"
exit 1
fi
if ! ./android/install_expat.sh; then
echo "Failed to build and install Expat"
exit 1
fi
if ! ./configure \
--build="$AUTOTOOLS_BUILD" --host="$AUTOTOOLS_HOST" \
--prefix="$ANDROID_SYSROOT" \
--with-ssl="$ANDROID_SYSROOT" --disable-gost \
--with-libexpat="$ANDROID_SYSROOT";
then
echo "Failed to configure Unbound"
exit 1
fi
if ! make -j 2; then
echo "Failed to build Unbound"
exit 1
fi
exit 0
elif [ "$TRAVIS_OS_NAME" = "osx" ]; then
./configure --enable-debug --disable-flto --with-ssl=/usr/local/opt/openssl/
else
./configure --enable-debug --disable-flto
fi
- make -j 2
- make test
- (cd testdata/clang-analysis.tdir; bash clang-analysis.test)
if ! make -j 2; then exit 1; fi
if ! make test; then exit 1; fi
(cd testdata/clang-analysis.tdir; bash clang-analysis.test)

157
README-Travis.md Normal file
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@ -0,0 +1,157 @@
# Travis Testing
Unbound 1.11 and above leverage Travis CI to increase coverage of compilers and platforms. Compilers include Clang and GCC; while platforms include Android, Linux, and OS X on AMD64, Aarch64, PowerPC and s390x hardware.
Android is tested on armv7a, aarch64, x86 and x86_64. Mips and Mips64 is no longer supported under current NDKs. The Android recipes build and install OpenSSL and Expat, and then builds Unbound. The testing is tailored for Android NDK-r19 and above, and includes NDK-r20 and NDK-r21. Due to Android NDK directory structure, the switch from GCC to Clang, and the tool names, the script will only work with NDK-r19 and above. And in the future it will likely break when the Android NDK team changes the directory structure and tools again (it happens every 2 or 3 years).
The Unbound Travis configuration file `.travis.yml` does not use top-level keys like `os:` and `compiler:` so there is no matrix expansion. Instead Unbound specifies the exact job to run under the `jobs:` and `include:` keys.
## Typical recipe
A typical recipe tests Clang and GCC on various hardware. The hardware includes AMD64, Aarch64, PowerPC and s390x. PowerPC is a little-endian platform, and s390x is a big-endian platform. There are pairs of recipes that are similar to the following.
```
- os: linux
name: GCC on Linux, Aarch64
compiler: gcc
arch: arm64
dist: bionic
- os: linux
name: Clang on Linux, Aarch64
compiler: clang
arch: arm64
dist: bionic
```
OS X provides a single recipe to test Clang. GCC is not tested because GCC is an alias for Clang.
## Sanitizer builds
Two sanitizer builds are tested using Clang and GCC, for a total of four builds. The first sanitizer is Undefined Behavior sanitizer (UBsan), and the second is Address sanitizer (Asan). The sanitizers are only run on AMD64 hardware. Note the environment includes `TEST_UBSAN=yes` or `TEST_ASAN=yes` for the sanitizer builds.
The recipes are similar to the following.
```
- os: linux
name: UBsan, GCC on Linux, Amd64
compiler: gcc
arch: amd64
dist: bionic
env: TEST_UBSAN=yes
- os: linux
name: UBsan, Clang on Linux, Amd64
compiler: clang
arch: amd64
dist: bionic
env: TEST_UBSAN=yes
```
When the Travis script encounters a sanitizer it uses different `CFLAGS` and configuration string.
```
if [ "$TEST_UBSAN" = "yes" ]; then
export CFLAGS="-DNDEBUG -g2 -O3 -fsanitize=undefined -fno-sanitize-recover"
./configure
elif [ "$TEST_ASAN" = "yes" ]; then
export CFLAGS="-DNDEBUG -g2 -O3 -fsanitize=address"
./configure
...
```
## Android builds
Android builds test compiles under armv7a, aarch64, x86 and x86_64. The builds are trickier than other builds for several reasons. The testing requires installation of the Android NDK and SDK, it requires a cross-compile, and requires OpenSSL and Expat prerequisites. The Android cross-compiles also require care to set the Autotools triplet, the OpenSSL triplet, the toolchain path, the tool variables, and the sysroot. The steps below detail the pieces of the Android recipes.
The first step for Android is to set the environmental variables `ANDROID_NDK_ROOT` and `ANDROID_SDK_ROOT`. This is an important step because the NDK and SDK use the variables internally to locate their own tools. Also see [Recommended NDK Directory?](https://groups.google.com/forum/#!topic/android-ndk/qZjhOaynHXc) on the android-ndk mailing list. (Many folks botch this step, and use incorrect variables like `ANDROID_NDK_HOME` or `ANDROID_SDK_HOME`).
Unbound exports the variables in the Travis configuration script for the Android recipe:
```
export ANDROID_SDK_ROOT="$HOME/android-sdk"
export ANDROID_NDK_ROOT="$HOME/android-ndk"
```
The second step installs the NDK and SDK. This step is handled in by the script `android/install_ndk.sh`. The script uses `ANDROID_NDK_ROOT` and `ANDROID_SDK_ROOT` to place the NDK and SDK in the `$HOME` directory.
The third step sets the cross-compile environment using the script `android/setenv_android.sh`. The script is `sourced` so the variables set in the script are available to the calling shell. The script sets variables like `CC`, `CXX`, `AS` and `AR`; sets `CFLAGS` and `CXXFLAGS`; sets a `sysroot` so Android headers and libraries are found; and adds the path to the toolchain to `PATH`.
`setenv_android.sh` knows which toolchain and architecture to select by inspecting environmental variables set by Travis for the job. In particular, the variables `ANDROID_CPU` and `ANDROID_API` tell `setenv_android.sh` what tools and libraries to select. For example, below is part of the Aarch64 recipe.
```
- os: linux
name: Android aarch64, Linux, Amd64
compiler: clang
arch: amd64
dist: bionic
env:
- TEST_ANDROID=yes
- AUTOTOOLS_HOST=aarch64-linux-android
- OPENSSL_CPU=arm64
- ANDROID_CPU=arm64-v8a
- ANDROID_API=23
```
The `setenv_android.sh` script specifies the tools in a `case` statement like the following. There is a case for each of the architectures armv7a, aarch64, x86 and x86_64.
```
armv8a|aarch64|arm64|arm64-v8a)
CC="aarch64-linux-android$ANDROID_API-clang"
CXX="aarch64-linux-android$ANDROID_API-clang++"
LD="aarch64-linux-android-ld"
AS="aarch64-linux-android-as"
AR="aarch64-linux-android-ar"
RANLIB="aarch64-linux-android-ranlib"
STRIP="aarch64-linux-android-strip"
CFLAGS="-funwind-tables -fexceptions"
CXXFLAGS="-funwind-tables -fexceptions -frtti"
```
Finally, once all the variables are set the Travis script cross-compiles OpenSSL and Expat, and then configures and builds Unbound. The recipe looks as follows.
```
elif [ "$TEST_ANDROID" = "yes" ]; then
# AUTOTOOLS_HOST is set in the job
export AUTOTOOLS_BUILD="$(./config.guess)"
if ! ./android/install_ndk.sh ; then
echo "Failed to install Android SDK and NDK"
exit 1
fi
if ! source ./android/setenv_android.sh "$ANDROID_CPU"; then
echo "Failed to set Android environment"
exit 1
fi
if ! ./android/install_openssl.sh; then
echo "Failed to build and install OpenSSL"
exit 1
fi
if ! ./android/install_expat.sh; then
echo "Failed to build and install Expat"
exit 1
fi
if ! ./configure \
--build="$AUTOTOOLS_BUILD" --host="$AUTOTOOLS_HOST" \
--prefix="$ANDROID_SYSROOT" \
--with-ssl="$ANDROID_SYSROOT" --disable-gost \
--with-libexpat="$ANDROID_SYSROOT";
then
echo "Failed to configure Unbound"
exit 1
fi
if ! make -j 2; then
echo "Failed to build Unbound"
exit 1
fi
```
Unbound only smoke tests a build using a compile and link. The self tests are not run. TODO: figure out how to fire up an emulator, push the tests to the device and run them.
Note the `--prefix="$ANDROID_SYSROOT"` used by OpenSSL, Expat and Unbound. This makes it easy to find libraries and headers because `CFLAGS` and `CXXFLAGS` already use `--sysroot="$ANDROID_SYSROOT"`. By performing a `make install` and installing into `$ANDROID_SYSROOT`, all the libraries needed by Unbound are present without extra flags or searching.
## Android flags
`android/setenv_android.sh` uses specific flags for `CFLAGS` and `CXXFLAGS`. The flags are not arbitrary; they are taken from the `ndk-build` tool. It is important to use the same flags across projects to avoid subtle problems due to mixing and matching different flags.
`CXXFLAGS` includes `-fexceptions` because exceptions are disabled by default. `CFLAGS` include `-funwind-tables` and `-fexceptions` to ensure C++ exceptions pass through C code, if needed. Also see `docs/CPLUSPLUS—SUPPORT.html` in the NDK docs.
To inspect the flags used by `ndk-build` for a platform clone ASOP's [ndk-samples](https://github.com/android/ndk-samples/tree/master/hello-jni) and build the `hello-jni` project. Use the `V=1` flag to see the full compiler output.

185
android/15-android.conf Normal file
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@ -0,0 +1,185 @@
#### Android...
#
# See NOTES.ANDROID for details, and don't miss platform-specific
# comments below...
{
use File::Spec::Functions;
my $android_ndk = {};
my %triplet = (
arm => "arm-linux-androideabi",
armeabi => "arm-linux-androideabi",
armv7a => "arm-linux-androideabi",
arm64 => "aarch64-linux-android",
x86 => "i686-linux-android",
x86_64 => "x86_64-linux-android"
);
sub android_ndk {
unless (%$android_ndk) {
if ($now_printing =~ m|^android|) {
return $android_ndk = { bn_ops => "BN_AUTO" };
}
my $ndk_var;
my $ndk;
foreach (qw(ANDROID_NDK_ROOT)) {
$ndk_var = $_;
$ndk = $ENV{$ndk_var};
last if defined $ndk;
}
die "\$ANDROID_NDK_ROOT is not defined" if (!$ndk);
if (!-d "$ndk/platforms" && !-f "$ndk/AndroidVersion.txt") {
# $ndk/platforms is traditional "all-inclusive" NDK, while
# $ndk/AndroidVersion.txt is so-called standalone toolchain
# tailored for specific target down to API level.
die "\$ANDROID_NDK_ROOT=$ndk is invalid";
}
$ndk = canonpath($ndk);
my $ndkver = undef;
if (open my $fh, "<$ndk/source.properties") {
local $_;
while(<$fh>) {
if (m|Pkg\.Revision\s*=\s*([0-9]+)|) {
$ndkver = $1;
last;
}
}
close $fh;
}
my ($sysroot, $api, $arch);
$config{target} =~ m|[^-]+-([^-]+)$|; # split on dash
$arch = $1;
if ($arch = "armeabi") {
$arch = "arm";
}
if (-f "$ndk/AndroidVersion.txt") {
$sysroot = "$ndk/sysroot";
} else {
$api = "*";
# see if user passed -D__ANDROID_API__=N
foreach (@{$useradd{CPPDEFINES}}, @{$user{CPPFLAGS}}) {
if (m|__ANDROID_API__=([0-9]+)|) {
$api = $1;
last;
}
}
# list available platforms (numerically)
my @platforms = sort { $a =~ m/-([0-9]+)$/; my $aa = $1;
$b =~ m/-([0-9]+)$/; $aa <=> $1;
} glob("$ndk/platforms/android-$api");
die "no $ndk/platforms/android-$api" if ($#platforms < 0);
$sysroot = "@platforms[$#platforms]/arch-$arch";
$sysroot =~ m|/android-([0-9]+)/arch-$arch|;
$api = $1;
}
die "no sysroot=$sysroot" if (!-d $sysroot);
my $triarch = $triplet{$arch};
my $cflags;
my $cppflags;
# see if there is NDK clang on $PATH, "universal" or "standalone"
if (which("clang") =~ m|^$ndk/.*/prebuilt/([^/]+)/|) {
my $host=$1;
# harmonize with gcc default
my $arm = $ndkver > 16 ? "armv7a" : "armv5te";
(my $tridefault = $triarch) =~ s/^arm-/$arm-/;
(my $tritools = $triarch) =~ s/(?:x|i6)86(_64)?-.*/x86$1/;
$cflags .= " -target $tridefault ";
$user{CC} = "clang" if ($user{CC} !~ m|clang|);
$user{CROSS_COMPILE} = undef;
if (which("llvm-ar") =~ m|^$ndk/.*/prebuilt/([^/]+)/|) {
$user{AR} = "llvm-ar";
$user{ARFLAGS} = [ "rs" ];
$user{RANLIB} = ":";
}
} elsif (-f "$ndk/AndroidVersion.txt") { #"standalone toolchain"
my $cc = $user{CC} // "clang";
# One can probably argue that both clang and gcc should be
# probed, but support for "standalone toolchain" was added
# *after* announcement that gcc is being phased out, so
# favouring clang is considered adequate. Those who insist
# have option to enforce test for gcc with CC=gcc.
if (which("$triarch-$cc") !~ m|^$ndk|) {
die "no NDK $triarch-$cc on \$PATH";
}
$user{CC} = $cc;
$user{CROSS_COMPILE} = "$triarch-";
} elsif ($user{CC} eq "clang") {
die "no NDK clang on \$PATH";
} else {
if (which("$triarch-gcc") !~ m|^$ndk/.*/prebuilt/([^/]+)/|) {
die "no NDK $triarch-gcc on \$PATH";
}
$cflags .= " -mandroid";
$user{CROSS_COMPILE} = "$triarch-";
}
if (!-d "$sysroot/usr/include") {
my $incroot = "$ndk/sysroot/usr/include";
die "no $incroot" if (!-d $incroot);
die "no $incroot/$triarch" if (!-d "$incroot/$triarch");
$incroot =~ s|^$ndk/||;
$cppflags = "-D__ANDROID_API__=$api";
}
$sysroot =~ s|^$ndk/||;
$android_ndk = {
cppflags => $cppflags,
bn_ops => $arch =~ m/64$/ ? "SIXTY_FOUR_BIT_LONG"
: "BN_LLONG",
};
}
return $android_ndk;
}
}
my %targets = (
"android" => {
inherit_from => [ "linux-generic32" ],
template => 1,
################################################################
# Special note about -pie. The underlying reason is that
# Lollipop refuses to run non-PIE. But what about older systems
# and NDKs? -fPIC was never problem, so the only concern is -pie.
cflags => add(sub { android_ndk()->{cflags} }),
cppflags => add(sub { android_ndk()->{cppflags} }),
cxxflags => add(sub { android_ndk()->{cflags} }),
bn_ops => sub { android_ndk()->{bn_ops} },
bin_cflags => "-pie",
enable => [ ],
},
"android-arm" => {
inherit_from => [ "android", asm("armv4_asm") ],
bn_ops => add("RC4_CHAR"),
},
"android-arm64" => {
inherit_from => [ "android", asm("aarch64_asm") ],
bn_ops => add("RC4_CHAR"),
perlasm_scheme => "linux64",
},
"android-x86" => {
inherit_from => [ "android", asm("x86_asm") ],
CFLAGS => add(picker(release => "-fomit-frame-pointer")),
bn_ops => add("RC4_INT"),
perlasm_scheme => "android",
},
"android-x86_64" => {
inherit_from => [ "android", asm("x86_64_asm") ],
bn_ops => add("RC4_INT"),
perlasm_scheme => "elf",
},
);

55
android/install_expat.sh Executable file
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@ -0,0 +1,55 @@
#!/usr/bin/env bash
# install android deps
sudo apt-get -qq update
sudo apt-get -qq install --no-install-recommends curl tar
echo "Downloading Expat"
if ! curl -L -k -s -o expat-2.2.9.tar.gz https://github.com/libexpat/libexpat/releases/download/R_2_2_9/expat-2.2.9.tar.gz;
then
echo "Failed to download Expat"
exit 1
fi
echo "Unpacking Expat"
rm -rf ./expat-2.2.9
if ! tar -xf expat-2.2.9.tar.gz;
then
echo "Failed to unpack Expat"
exit 1
fi
cd expat-2.2.9 || exit 1
echo "Configuring Expat"
if ! ./configure --build="$AUTOTOOLS_BUILD" --host="$AUTOTOOLS_HOST" --prefix="$ANDROID_SYSROOT"; then
echo "Error: Failed to configure Expat"
exit 1
fi
# Cleanup warnings, https://github.com/libexpat/libexpat/issues/383
echo "Fixing Makefiles..."
(IFS="" find "$PWD" -name 'Makefile' -print | while read -r file
do
cp -p "$file" "$file.fixed"
sed 's|-Wduplicated-cond ||g; s|-Wduplicated-branches ||g; s|-Wlogical-op ||g' "$file" > "$file.fixed"
mv "$file.fixed" "$file"
cp -p "$file" "$file.fixed"
sed 's|-Wrestrict ||g; s|-Wjump-misses-init ||g; s|-Wmisleading-indentation ||g' "$file" > "$file.fixed"
mv "$file.fixed" "$file"
done)
echo "Building Expat"
if ! make; then
echo "Failed to build Expat"
exit 1
fi
echo "Installing Expat"
if ! make install; then
echo "Failed to install Expat"
exit 1
fi
exit 0

64
android/install_ndk.sh Executable file
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@ -0,0 +1,64 @@
#!/usr/bin/env bash
# install android deps
sudo apt-get -qq update
sudo apt-get -qq install --no-install-recommends curl openjdk-8-jdk zip unzip
if [ -z "$ANDROID_SDK_ROOT" ]; then
echo "ERROR: ANDROID_SDK_ROOT is not a valid path. Please set it."
echo "SDK root is $ANDROID_SDK_ROOT"
exit 1
fi
if [ -z "$ANDROID_NDK_ROOT" ]; then
echo "ERROR: ANDROID_NDK_ROOT is not a valid path. Please set it."
echo "NDK root is $ANDROID_NDK_ROOT"
exit 1
fi
echo "Using ANDROID_SDK_ROOT: $ANDROID_SDK_ROOT"
echo "Using ANDROID_NDK_ROOT: $ANDROID_NDK_ROOT"
echo "Downloading SDK"
if ! curl -L -k -s -o "$HOME/android-sdk.zip" https://dl.google.com/android/repository/commandlinetools-linux-6200805_latest.zip;
then
echo "Failed to download SDK"
exit 1
fi
echo "Downloading NDK"
if ! curl -L -k -s -o "$HOME/android-ndk.zip" https://dl.google.com/android/repository/android-ndk-r20b-linux-x86_64.zip;
then
echo "Failed to download NDK"
exit 1
fi
echo "Unpacking SDK to $ANDROID_SDK_ROOT"
if ! unzip -qq "$HOME/android-sdk.zip" -d "$ANDROID_SDK_ROOT";
then
echo "Failed to unpack SDK"
exit 1
fi
echo "Unpacking NDK to $ANDROID_NDK_ROOT"
if ! unzip -qq "$HOME/android-ndk.zip" -d "$HOME";
then
echo "Failed to unpack NDK"
exit 1
fi
if ! mv "$HOME/android-ndk-r20b" "$ANDROID_NDK_ROOT";
then
echo "Failed to move $HOME/android-ndk-r20b to $ANDROID_NDK_ROOT"
exit 1
fi
rm -f "$HOME/android-sdk.zip"
rm -f "$HOME/android-ndk.zip"
# https://stackoverflow.com/a/47028911/608639
touch "$ANDROID_SDK_ROOT/repositories.cfg"
echo "Finished installing SDK and NDK"
exit 0

49
android/install_openssl.sh Executable file
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#!/usr/bin/env bash
# install android deps
sudo apt-get -qq update
sudo apt-get -qq install --no-install-recommends curl tar perl
echo "Downloading OpenSSL"
if ! curl -L -k -s -o openssl-1.1.1d.tar.gz https://www.openssl.org/source/openssl-1.1.1d.tar.gz;
then
echo "Failed to download OpenSSL"
exit 1
fi
echo "Unpacking OpenSSL"
rm -rf ./openssl-1.1.1d
if ! tar -xf openssl-1.1.1d.tar.gz;
then
echo "Failed to unpack OpenSSL"
exit 1
fi
cd openssl-1.1.1d || exit 1
# Damn OpenSSL devs... They just make the shit up as they go...
if ! cp ../android/15-android.conf Configurations/; then
echo "Failed to copy OpenSSL Android config"
exit 1
fi
echo "Configuring OpenSSL"
if ! ./Configure "$OPENSSL_HOST" no-comp no-asm no-hw no-engine shared \
"$CFLAGS" --prefix="$ANDROID_SYSROOT" --openssldir="$ANDROID_SYSROOT"; then
echo "Failed to configure OpenSSL"
exit 1
fi
echo "Building OpenSSL"
if ! make; then
echo "Failed to build OpenSSL"
exit 1
fi
echo "Installing OpenSSL"
if ! make install_sw; then
echo "Failed to install OpenSSL"
exit 1
fi
exit 0

190
android/setenv_android.sh Executable file
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#!/usr/bin/env bash
# Error checking
if [ ! -d "$ANDROID_NDK_ROOT" ]; then
echo "ERROR: ANDROID_NDK_ROOT is not a valid path. Please set it."
echo "NDK root is $ANDROID_NDK_ROOT"
[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
fi
#####################################################################
# Need to set THIS_HOST to darwin-x86_64, linux-x86_64,
# windows-x86_64 or windows.
if [[ "$(uname -s | grep -i -c darwin)" -ne 0 ]]; then
THIS_HOST=darwin-x86_64
elif [[ "$(uname -s | grep -i -c linux)" -ne 0 ]]; then
THIS_HOST=linux-x86_64
else
echo "ERROR: Unknown host"
[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
fi
AOSP_TOOLCHAIN_ROOT="$ANDROID_NDK_ROOT/toolchains/llvm/prebuilt/$THIS_HOST"
AOSP_TOOLCHAIN_PATH="$AOSP_TOOLCHAIN_ROOT/bin"
AOSP_SYSROOT="$AOSP_TOOLCHAIN_ROOT/sysroot"
# Error checking
if [ ! -d "$AOSP_TOOLCHAIN_ROOT" ]; then
echo "ERROR: AOSP_TOOLCHAIN_ROOT is not a valid path. Please set it."
echo "Root is $AOSP_TOOLCHAIN_ROOT"
[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
fi
# Error checking
if [ ! -d "$AOSP_TOOLCHAIN_PATH" ]; then
echo "ERROR: AOSP_TOOLCHAIN_PATH is not a valid path. Please set it."
echo "Path is $AOSP_TOOLCHAIN_PATH"
[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
fi
# Error checking
if [ ! -d "$AOSP_SYSROOT" ]; then
echo "ERROR: AOSP_SYSROOT is not a valid path. Please set it."
echo "Path is $AOSP_SYSROOT"
[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
fi
#####################################################################
if [ "$#" -lt 1 ]; then
AOSP_ARCH=armeabi-v7a
else
AOSP_ARCH=$(tr '[:upper:]' '[:upper:]' <<< "$1")
fi
# https://developer.android.com/ndk/guides/abis.html
case "$AOSP_ARCH" in
armeabi|armv7a|armv7-a|armeabi-v7a)
CC="armv7a-linux-androideabi$ANDROID_API-clang"
CXX="armv7a-linux-androideabi$ANDROID_API-clang++"
LD="arm-linux-androideabi-ld"
AS="arm-linux-androideabi-as"
AR="arm-linux-androideabi-ar"
RANLIB="arm-linux-androideabi-ranlib"
STRIP="arm-linux-androideabi-strip"
CFLAGS="-march=armv7-a -mthumb -mfloat-abi=softfp -funwind-tables -fexceptions"
CXXFLAGS="-march=armv7-a -mthumb -mfloat-abi=softfp -funwind-tables -fexceptions -frtti"
;;
armv8|armv8a|aarch64|arm64|arm64-v8a)
CC="aarch64-linux-android$ANDROID_API-clang"
CXX="aarch64-linux-android$ANDROID_API-clang++"
LD="aarch64-linux-android-ld"
AS="aarch64-linux-android-as"
AR="aarch64-linux-android-ar"
RANLIB="aarch64-linux-android-ranlib"
STRIP="aarch64-linux-android-strip"
CFLAGS="-funwind-tables -fexceptions"
CXXFLAGS="-funwind-tables -fexceptions -frtti"
;;
x86)
CC="i686-linux-android$ANDROID_API-clang"
CXX="i686-linux-android$ANDROID_API-clang++"
LD="i686-linux-android-ld"
AS="i686-linux-android-as"
AR="i686-linux-android-ar"
RANLIB="i686-linux-android-ranlib"
STRIP="i686-linux-android-strip"
CFLAGS="-mtune=intel -mssse3 -mfpmath=sse -funwind-tables -fexceptions"
CXXFLAGS="-mtune=intel -mssse3 -mfpmath=sse -funwind-tables -fexceptions -frtti"
;;
x86_64|x64)
CC="x86_64-linux-android$ANDROID_API-clang"
CXX="x86_64-linux-android$ANDROID_API-clang++"
LD="x86_64-linux-android-ld"
AS="x86_64-linux-android-as"
AR="x86_64-linux-android-ar"
RANLIB="x86_64-linux-android-ranlib"
STRIP="x86_64-linux-android-strip"
CFLAGS="-march=x86-64 -msse4.2 -mpopcnt -mtune=intel -funwind-tables -fexceptions"
CXXFLAGS="-march=x86-64 -msse4.2 -mpopcnt -mtune=intel -funwind-tables -fexceptions -frtti"
;;
*)
echo "ERROR: Unknown architecture $1"
[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
;;
esac
#####################################################################
# Error checking
if [ ! -e "$AOSP_TOOLCHAIN_PATH/$CC" ]; then
echo "ERROR: Failed to find Android clang. Please edit this script."
[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
fi
# Error checking
if [ ! -e "$AOSP_TOOLCHAIN_PATH/$CXX" ]; then
echo "ERROR: Failed to find Android clang++. Please edit this script."
[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
fi
# Error checking
if [ ! -e "$AOSP_TOOLCHAIN_PATH/$RANLIB" ]; then
echo "ERROR: Failed to find Android ranlib. Please edit this script."
[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
fi
# Error checking
if [ ! -e "$AOSP_TOOLCHAIN_PATH/$AR" ]; then
echo "ERROR: Failed to find Android ar. Please edit this script."
[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
fi
# Error checking
if [ ! -e "$AOSP_TOOLCHAIN_PATH/$AS" ]; then
echo "ERROR: Failed to find Android as. Please edit this script."
[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
fi
# Error checking
if [ ! -e "$AOSP_TOOLCHAIN_PATH/$LD" ]; then
echo "ERROR: Failed to find Android ld. Please edit this script."
[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
fi
#####################################################################
# Only modify/export PATH if AOSP_TOOLCHAIN_PATH good
if [ -d "$AOSP_TOOLCHAIN_PATH" ]; then
# And only modify PATH if AOSP_TOOLCHAIN_PATH is not present
LEN=${#AOSP_TOOLCHAIN_PATH}
SUBSTR=${PATH:0:$LEN}
if [ "$SUBSTR" != "$AOSP_TOOLCHAIN_PATH" ]; then
export PATH="$AOSP_TOOLCHAIN_PATH:$PATH"
fi
fi
#####################################################################
export CPP CC CXX LD AS AR RANLIB STRIP
export ANDROID_SYSROOT="$AOSP_SYSROOT"
export CFLAGS="-D__ANDROID_API__=$ANDROID_API $CFLAGS --sysroot=$AOSP_SYSROOT"
export CXXFLAGS="-D__ANDROID_API__=$ANDROID_API $CXXFLAGS --sysroot=$AOSP_SYSROOT"
#####################################################################
echo "AOSP_TOOLCHAIN_PATH: $AOSP_TOOLCHAIN_PATH"
echo "CC: $CC"
echo "CXX: $CXX"
echo "LD: $LD"
echo "AS: $AS"
echo "AR: $AR"
echo "ANDROID_SYSROOT: $ANDROID_SYSROOT"
echo "CFLAGS: $CFLAGS"
echo "CXXFLAGS: $CXXFLAGS"
[ "$0" = "${BASH_SOURCE[0]}" ] && exit 0 || return 0