Problem cross compiling for Android. [13697] #2545

fmazzi · 2021-09-30T09:19:26Z

fmazzi
Sep 30, 2021

Hi, I am trying to compile fast dds libraries to use them in an android application. But I am having some difficulties. I will report the steps I've done so far.

Downloaded and cross compiled Fast CDR 1.0.22 with the following configuration:

-DCMAKE_TOOLCHAIN_FILE=/home/fmazzi/Android/Sdk/ndk/21.3.6528147/build/cmake/android.toolchain.cmake 
-DANDROID_ABI=arm64-v8a 
-DANDROID_NATIVE_API_LEVEL=24 
-DBUILD_SHARED_LIBS=ON
-DCMAKE_BUILD_TYPE=Release

Dowloaded and cross compiled tynyxml2.6.0.0 with the following configuration:

-DCMAKE_INSTALL_PREFIX=~/Fast-DDS/install 
-DCMAKE_TOOLCHAIN_FILE=/home/fmazzi/Android/Sdk/ndk/21.3.6528147/build/cmake/android.toolchain.cmake 
-DANDROID_ABI=arm64-v8a 
-DANDROID_NATIVE_API_LEVEL=24 
-DCMAKE_BUILD_TYPE=Release

Downloaded and cross compiled foonathan_memory_vendor version 1.1.0 with the following configuration:

-DCMAKE_TOOLCHAIN_FILE=/home/fmazzi/Android/Sdk/ndk/21.3.6528147/build/cmake/android.toolchain.cmake 
-DANDROID_ABI=arm64-v8a 
-DANDROID_NATIVE_API_LEVEL=24 
-DCMAKE_INSTALL_PREFIX=~/Fast-DDS/install 
-DBUILD_SHARED_LIBS=OFF 
-DFOONATHAN_MEMORY_BUILD_TOOLS=ON 
-DCMAKE_POSITION_INDEPENDENT_CODE=ON

Using quemu 6.1.0 as cross compiler emulator.

The configuration of this package gave me a warning:

Manually-specified variables were not used by the project:

    FOONATHAN_MEMORY_BUILD_TOOLS

Finally I downloaded and tried to cross compile fast dds 2.4.0 with the following configuration without success.

cmake ..  -DCMAKE_INSTALL_PREFIX=~/Fast-DDS/install 
-DCMAKE_TOOLCHAIN_FILE=/home/fmazzi/Android/Sdk/ndk/21.3.6528147/build/cmake/android.toolchain.cmake 
-DANDROID_ABI=arm64-v8a 
-DANDROID_NATIVE_API_LEVEL=24 
-DCMAKE_BUILD_TYPE=Release 
-DTHIRDPARTY=ON 
-Dfoonathan_memory_DIR=~/Fast-DDS/install/lib/foonathan_memory/cmake 
-Dfastcdr_DIR=~/Fast-DDS/install/lib/cmake/fastcdr 
-Dtinyxml2_DIR=~/Fast-DDS/install/lib/cmake/tinyxml2

The configuration is successful but I can't manually specify the location of tinyxml2.
I get the following warning as output and the library is automatically downloaded to thirdparty

Manually-specified variables were not used by the project:

tinyxml2_DIR

than during the build i got this error:

[  0%] Building CXX object src/cpp/CMakeFiles/fastrtps.dir/fastdds/log/Log.cpp.o
In file included from /home/fmazzi/Download/Fast-DDS/src/cpp/fastdds/log/Log.cpp:16:
In file included from /home/fmazzi/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/include/c++/v1/iomanip:46:
In file included from /home/fmazzi/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/include/c++/v1/__string:56:
In file included from /home/fmazzi/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/include/c++/v1/algorithm:642:
In file included from /home/fmazzi/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/include/c++/v1/utility:206:
In file included from /home/fmazzi/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/include/c++/v1/__debug:14:
In file included from /home/fmazzi/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/include/c++/v1/iosfwd:95:
In file included from /usr/include/wchar.h:850:
/usr/include/bits/wchar2.h:448:3: error: "Assumed value of MB_LEN_MAX wrong"
# error "Assumed value of MB_LEN_MAX wrong"
  ^
In file included from /home/fmazzi/Download/Fast-DDS/src/cpp/fastdds/log/Log.cpp:16:
In file included from /home/fmazzi/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/include/c++/v1/iomanip:46:
In file included from /home/fmazzi/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/include/c++/v1/__string:56:
In file included from /home/fmazzi/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/include/c++/v1/algorithm:643:
In file included from /home/fmazzi/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/include/c++/v1/memory:653:
In file included from /home/fmazzi/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/include/c++/v1/typeinfo:60:
In file included from /home/fmazzi/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/include/c++/v1/exception:81:
In file included from /home/fmazzi/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/include/c++/v1/cstdlib:85:
In file included from /usr/include/stdlib.h:1020:
/usr/include/bits/stdlib.h:90:3: error: "Assumed value of MB_LEN_MAX wrong"
# error "Assumed value of MB_LEN_MAX wrong"
  ^
In file included from /home/fmazzi/Download/Fast-DDS/src/cpp/fastdds/log/Log.cpp:16:
In file included from /home/fmazzi/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/include/c++/v1/iomanip:46:
In file included from /home/fmazzi/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/include/c++/v1/__string:56:
In file included from /home/fmazzi/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/include/c++/v1/algorithm:643:
In file included from /home/fmazzi/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/include/c++/v1/memory:653:
/home/fmazzi/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/include/c++/v1/typeinfo:215:14: error: cast from pointer to smaller type 'std::__type_info_implementations::__non_unique_arm_rtti_bit_impl::__type_name_t' (aka 'unsigned int') loses information
      return reinterpret_cast<__type_name_t>(__v);
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/fmazzi/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/include/c++/v1/typeinfo:221:16: error: reinterpret_cast from 'std::__type_info_implementations::__non_unique_arm_rtti_bit_impl::__type_name_t' (aka 'unsigned int') to 'size_t' (aka 'unsigned long') is not allowed
        return reinterpret_cast<size_t>(__v);
               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4 errors generated.
src/cpp/CMakeFiles/fastrtps.dir/build.make:62: recipe for target 'src/cpp/CMakeFiles/fastrtps.dir/fastdds/log/Log.cpp.o' failed
make[2]: *** [src/cpp/CMakeFiles/fastrtps.dir/fastdds/log/Log.cpp.o] Error 1
CMakeFiles/Makefile2:981: recipe for target 'src/cpp/CMakeFiles/fastrtps.dir/all' failed
make[1]: *** [src/cpp/CMakeFiles/fastrtps.dir/all] Error 2
Makefile:140: recipe for target 'all' failed
make: *** [all] Error 2

Unfortunately, I am not an expert in cross compilation.
Could someone who managed to compile fast dds for android help me?

Thank you in advance.

JLBuenoLopez · 2022-03-01T15:08:17Z

JLBuenoLopez
Mar 1, 2022

I am going to move this issue to the Unofficial support forum. According to the CONTRIBUTING guidelines, issues related with non-officially supported platforms, architectures and/or compilers should be discussed over that forum.

0 replies

ibaiGorordo · 2022-05-03T08:28:08Z

ibaiGorordo
May 3, 2022

Hi, I share below a Dockerfile that builds the library for Android successfully. I have not tested the built library, and some of the build options might be unnecessary, but I share here in case someone wants to build the library for Android:

FROM cimg/android:2022.04-ndk

# Create base folder
RUN mkdir Fast-DDS && cd Fast-DDS
WORKDIR "Fast-DDS"

# foonathan-memory build
RUN git clone https://github.com/eProsima/foonathan_memory_vendor.git
RUN mkdir foonathan_memory_vendor/build && \
    cd foonathan_memory_vendor/build && \
    ~/android-sdk/cmake/3.18.1/bin/cmake .. \
                -DBUILD_SHARED_LIBS=ON \
                -DCMAKE_BUILD_TYPE=Release \
                -DCMAKE_TOOLCHAIN_FILE=~/android-sdk/ndk/23.1.7779620/build/cmake/android.toolchain.cmake \
                -DCMAKE_SYSTEM_NAME=Android \
                -DANDROID_ABI=arm64-v8a \
                -DANDROID_NATIVE_API_LEVEL=24 \
                -DANDROID_NDK=~/android-sdk/ndk/23.1.7779620 \
                -DCMAKE_INSTALL_PREFIX=~/project/Fast-DDS/install && \
    ~/android-sdk/cmake/3.18.1/bin/cmake --build . --target install

# Fast-DDS build
RUN git clone https://github.com/eProsima/Fast-DDS.git
RUN mkdir Fast-DDS/build && \
    cd Fast-DDS/build && \
    ~/android-sdk/cmake/3.18.1/bin/cmake .. \
                -DCMAKE_SYSTEM_NAME=Android \
                -DCMAKE_TOOLCHAIN_FILE=~/android-sdk/ndk/23.1.7779620/build/cmake/android.toolchain.cmake \
                -DCMAKE_ANDROID_NDK=~/android-sdk/ndk/23.1.7779620 \
                -DANDROID_NDK=~/android-sdk/ndk/23.1.7779620 \
                -DCMAKE_ANDROID_ARCH_ABI=arm64-v8a \
                -DANDROID_ABI=arm64-v8a \
                -DANDROID_PLATFORM=android-24 \
                -DCMAKE_SYSTEM_VERSION=24 \
                -DCMAKE_BUILD_TYPE=Release \
                -DBUILD_SHARED_LIBS=ON \
                -Dfoonathan_memory_DIR=~/project/Fast-DDS/install/lib/foonathan_memory/cmake \
                -DTHIRDPARTY=FORCE \
                -DCMAKE_INSTALL_PREFIX=~/project/Fast-DDS/install && \
    ~/android-sdk/cmake/3.18.1/bin/cmake --build . --target install

1 reply

FranzKafkaYu Nov 4, 2022

@ibaiGorordo

Hello，I have followed your steps buit I failed to compile x86 version when I compile fastdds,and my host machine is ：
5.4.0-125-generic #141-Ubuntu SMP Wed Aug 10 13:42:03 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

And I got errors like this:

Scanning dependencies of target fastcdr
[  1%] Building CXX object thirdparty/fastcdr/src/cpp/CMakeFiles/fastcdr.dir/Cdr.cpp.o
/opt/FranzKafkaYu/FastDDS/Fast-DDS/thirdparty/fastcdr/src/cpp/Cdr.cpp:591:30: warning: implicit conversion increases floating-point precision: 'const long double' to '__float128' [-Wdouble-promotion]
            __float128 tmp = ldouble_t;
                       ~~~   ^~~~~~~~~
/opt/FranzKafkaYu/FastDDS/Fast-DDS/thirdparty/fastcdr/src/cpp/Cdr.cpp:640:30: warning: implicit conversion increases floating-point precision: 'const long double' to '__float128' [-Wdouble-promotion]
            __float128 tmp = ldouble_t;
                       ~~~   ^~~~~~~~~
/opt/FranzKafkaYu/FastDDS/Fast-DDS/thirdparty/fastcdr/src/cpp/Cdr.cpp:1320:34: warning: implicit conversion increases floating-point precision: 'const long double' to '__float128' [-Wdouble-promotion]
                __float128 tmp = *ldouble_t;
                           ~~~   ^~~~~~~~~~
/opt/FranzKafkaYu/FastDDS/Fast-DDS/thirdparty/fastcdr/src/cpp/Cdr.cpp:1344:34: warning: implicit conversion increases floating-point precision: 'const long double' to '__float128' [-Wdouble-promotion]
                __float128 tmp = *ldouble_t;
                           ~~~   ^~~~~~~~~~
/opt/FranzKafkaYu/FastDDS/Fast-DDS/thirdparty/fastcdr/src/cpp/Cdr.cpp:1753:30: warning: implicit conversion increases floating-point precision: 'long double' to '__float128' [-Wdouble-promotion]
            __float128 tmp = ldouble_t;
                       ~~~   ^~~~~~~~~
5 warnings generated.
[  1%] Building CXX object thirdparty/fastcdr/src/cpp/CMakeFiles/fastcdr.dir/FastCdr.cpp.o
/opt/FranzKafkaYu/FastDDS/Fast-DDS/thirdparty/fastcdr/src/cpp/FastCdr.cpp:331:30: warning: implicit conversion increases floating-point precision: 'const long double' to '__float128' [-Wdouble-promotion]
            __float128 tmp = ldouble_t[idx];
                       ~~~   ^~~~~~~~~~~~~~
1 warning generated.
[  2%] Building CXX object thirdparty/fastcdr/src/cpp/CMakeFiles/fastcdr.dir/FastBuffer.cpp.o
[  2%] Building CXX object thirdparty/fastcdr/src/cpp/CMakeFiles/fastcdr.dir/exceptions/Exception.cpp.o
[  3%] Building CXX object thirdparty/fastcdr/src/cpp/CMakeFiles/fastcdr.dir/exceptions/NotEnoughMemoryException.cpp.o
[  3%] Building CXX object thirdparty/fastcdr/src/cpp/CMakeFiles/fastcdr.dir/exceptions/BadParamException.cpp.o
[  4%] Linking CXX shared library libfastcdr.so
ld: error: undefined symbol: __extenddftf2
>>> referenced by Cdr.cpp:591 (/opt/FranzKafkaYu/FastDDS/Fast-DDS/thirdparty/fastcdr/src/cpp/Cdr.cpp:591)
>>>               CMakeFiles/fastcdr.dir/Cdr.cpp.o:(eprosima::fastcdr::Cdr::serialize(long double))
>>> referenced by Cdr.cpp:640 (/opt/FranzKafkaYu/FastDDS/Fast-DDS/thirdparty/fastcdr/src/cpp/Cdr.cpp:640)
>>>               CMakeFiles/fastcdr.dir/Cdr.cpp.o:(eprosima::fastcdr::Cdr::serialize(long double))
>>> referenced by Cdr.cpp:1320 (/opt/FranzKafkaYu/FastDDS/Fast-DDS/thirdparty/fastcdr/src/cpp/Cdr.cpp:1320)
>>>               CMakeFiles/fastcdr.dir/Cdr.cpp.o:(eprosima::fastcdr::Cdr::serializeArray(long double const*, unsigned int))
>>> referenced 6 more times

ld: error: undefined symbol: __trunctfdf2
>>> referenced by Cdr.cpp:0 (/opt/FranzKafkaYu/FastDDS/Fast-DDS/thirdparty/fastcdr/src/cpp/Cdr.cpp:0)
>>>               CMakeFiles/fastcdr.dir/Cdr.cpp.o:(eprosima::fastcdr::Cdr::deserialize(long double&))
>>> referenced by Cdr.cpp:2544 (/opt/FranzKafkaYu/FastDDS/Fast-DDS/thirdparty/fastcdr/src/cpp/Cdr.cpp:2544)
>>>               CMakeFiles/fastcdr.dir/Cdr.cpp.o:(eprosima::fastcdr::Cdr::deserializeArray(long double*, unsigned int))
>>> referenced by Cdr.cpp:2554 (/opt/FranzKafkaYu/FastDDS/Fast-DDS/thirdparty/fastcdr/src/cpp/Cdr.cpp:2554)
>>>               CMakeFiles/fastcdr.dir/Cdr.cpp.o:(eprosima::fastcdr::Cdr::deserializeArray(long double*, unsigned int))
>>> referenced 9 more times
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [thirdparty/fastcdr/src/cpp/CMakeFiles/fastcdr.dir/build.make:159: thirdparty/fastcdr/src/cpp/libfastcdr.so] Error 1
make[1]: *** [CMakeFiles/Makefile2:1019: thirdparty/fastcdr/src/cpp/CMakeFiles/fastcdr.dir/all] Error 2

jingTian-z · 2022-11-04T08:09:56Z

jingTian-z
Nov 4, 2022

I share my android compilation script.

#!/bin/bash

build_abi=$1
install_dir_prefix=$2
install_dir=${install_dir_prefix}/${build_abi}

echo "build abi: ${build_abi}"
echo "install dir: ${install_dir}"

build_dir=build_android
openssl_root_dir=${HOME}/work/opensource/openssl/${build_abi}

rm -rf ${build_dir}
mkdir ${build_dir}
cd ${build_dir}

echo "start building ..."

cmake \
    -DCMAKE_BUILD_TYPE=Release \
    -DCMAKE_TOOLCHAIN_FILE="$ANDROID_NDK_ROOT/build/cmake/android.toolchain.cmake" \
    -DANDROID_ABI="${build_abi}" \
    -DANDROID_PLATFORM=android-24 \
    -DCMAKE_INSTALL_PREFIX=${install_dir} \
    -DTHIRDPARTY=ON \
    -DCOMPILE_EXAMPLES=ON\
    -DCOMPILE_TOOLS=ON \
    -DINSTALL_EXAMPLES=ON \
    -DANDROID_STL=c++_shared \
    -Dfoonathan_memory_DIR="${HOME}/work/opensource/dds_src/install_android/${build_abi}/lib/foonathan_memory/cmake" \
    -DSHM_TRANSPORT_DEFAULT=ON \
    ..

cmake --build . --target install

# readme.
# ./build_android.sh armeabi-v7a ./../../android_install

6 replies

jingTian-z Nov 4, 2022

cmake version 3.22.1

FranzKafkaYu Nov 4, 2022

cmake version 3.22.1

thank you.But I still have such problem even I upgrade my cmake to 3.25.0-rc1,and My cmake configuration for building fastdds is:

cmake .. -DCMAKE_SYSTEM_NAME=Android  \ 
              -DCMAKE_TOOLCHAIN_FILE=/opt/FranzKafkaYu/FastDDS/ndk/android-ndk-r25b/build/cmake/android.toolchain.cmake  \
              -DCMAKE_ANDROID_NDK=/opt/FranzKafkaYu/FastDDS/ndk/android-ndk-r25b  \
              -DANDROID_NDK=/opt/FranzKafkaYu/FastDDS/ndk/android-ndk-r25b \
              -DCMAKE_ANDROID_ARCH_ABI=x86  \
              -DANDROID_ABI=x86  \
              -DBUILD_SHARED_LIBS=ON \
              -Dfoonathan_memory_DIR=/opt/FranzKafkaYu/FastDDS/install/lib/foonathan_memory/cmake  \
              -DTHIRDPARTY=FORCE  \
              -DCMAKE_INSTALL_PREFIX=/opt/FranzKafkaYu/FastDDS/install

jingTian-z Nov 4, 2022

This probably has nothing to do with the version of CMKAKE.
But your parameter setting for NDK looks a bit complicated.

FranzKafkaYu Nov 4, 2022

This probably has nothing to do with the version of CMKAKE. But your parameter setting for NDK looks a bit complicated.

emmm,I am not familiar with Android NDK build system.My goal is to build fastdds library which will be used for my Android Application,running in x86 system(Android Cuttlefish Vitual Machine,32 bit).I will try to simplize my configuration like yours and try it again.

FranzKafkaYu Nov 4, 2022

Still failed,I have no idea why such problem still existed even I changed my configuration like yours.Can you try to compile x86 @jingTian-z

FranzKafkaYu · 2022-11-07T01:59:22Z

FranzKafkaYu
Nov 7, 2022

#3069 I have submitted a issue about this question,hope someon can help me solve my problem.

0 replies

FranzKafkaYu · 2022-11-07T06:11:14Z

FranzKafkaYu
Nov 7, 2022

@jingTian-z Hi bro,can you help me compile x86 libraries as a test?it seems different NDK version has different result here.

0 replies

vsxpohai · 2022-12-26T08:25:10Z

vsxpohai
Dec 26, 2022

I use "-DTinyXML2_DIR=/usr/local/lib/cmake/tinyxml2", it is ok!

1 reply

vsxpohai Dec 26, 2022

export ANDROID_NDK=/home/zpp/Android/Sdk/ndk/21.4.7075529

cmake -DCMAKE_INSTALL_PREFIX=/usr/local/lib
-DCMAKE_BUILD_TYPE=Release
-DANDROID_ABI="arm64-v8a"
-DANDROID_PLATFORM=android-30
-DCMAKE_TOOLCHAIN_FILE=$ANDROID_NDK/build/cmake/android.toolchain.cmake ..
-DTinyXML2_DIR=/usr/local/lib/cmake/tinyxml2
-Dfoonathan_memory_DIR=/usr/local/lib/foonathan_memory/cmake
-Dfastcdr_DIR=/usr/local/lib/cmake/fastcdr \

like up~

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Problem cross compiling for Android. [13697] #2545

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