Failure to compile for arm64 devices - c++

Question

Hello i am quite new to linux and i am trying to do some cross-compilation to run a flutter app on an external device.
Setup :
VM under virtual box : Ubuntu 22.04 LTS
External device : (imx8) with arm64
So i need to compile my app to match the arm64 architecture but i am having many errors that i have no idea how to fix and no idea where they come from :
Failed to cmake:
-- The CXX compiler identification is Clang 14.0.0
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - failed
-- Check for working CXX compiler: /usr/bin/clang++
-- Check for working CXX compiler: /usr/bin/clang++ - broken
-- Configuring incomplete, errors occurred!
See also "/home/tom/test_app/build/elinux/arm64/release/CMakeFiles/CMakeOutput.log".
See also "/home/tom/test_app/build/elinux/arm64/release/CMakeFiles/CMakeError.log".
CMake Error at /usr/share/cmake-3.22/Modules/CMakeTestCXXCompiler.cmake:62 (message):
The C++ compiler
"/usr/bin/clang++"
is not able to compile a simple test program.
It fails with the following output:
Change Dir: /home/tom/test_app/build/elinux/arm64/release/CMakeFiles/CMakeTmp
Run Build Command(s):/usr/bin/gmake -f Makefile cmTC_46f48/fast && /usr/bin/gmake -f CMakeFiles/cmTC_46f48.dir/build.make CMakeFiles/cmTC_46f48.dir/build
gmake[1]: Entering directory '/home/tom/test_app/build/elinux/arm64/release/CMakeFiles/CMakeTmp'
Building CXX object CMakeFiles/cmTC_46f48.dir/testCXXCompiler.cxx.o
/usr/bin/clang++ --target=aarch64-linux-gnu --sysroot=/opt/arm64-sysroot -MD -MT CMakeFiles/cmTC_46f48.dir/testCXXCompiler.cxx.o -MF
CMakeFiles/cmTC_46f48.dir/testCXXCompiler.cxx.o.d -o CMakeFiles/cmTC_46f48.dir/testCXXCompiler.cxx.o -c
/home/tom/test_app/build/elinux/arm64/release/CMakeFiles/CMakeTmp/testCXXCompiler.cxx
Linking CXX executable cmTC_46f48
/usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_46f48.dir/link.txt --verbose=1
/usr/bin/clang++ --target=aarch64-linux-gnu --sysroot=/opt/arm64-sysroot CMakeFiles/cmTC_46f48.dir/testCXXCompiler.cxx.o -o cmTC_46f48
/usr/bin/aarch64-linux-gnu-ld: cannot find Scrt1.o: No such file or directory
/usr/bin/aarch64-linux-gnu-ld: cannot find crti.o: No such file or directory
/usr/bin/aarch64-linux-gnu-ld: cannot find crtbeginS.o: No such file or directory
/usr/bin/aarch64-linux-gnu-ld: cannot find -lstdc++: No such file or directory
/usr/bin/aarch64-linux-gnu-ld: cannot find -lm: No such file or directory
/usr/bin/aarch64-linux-gnu-ld: cannot find -lgcc_s: No such file or directory
/usr/bin/aarch64-linux-gnu-ld: cannot find -lgcc: No such file or directory
/usr/bin/aarch64-linux-gnu-ld: cannot find -lc: No such file or directory
/usr/bin/aarch64-linux-gnu-ld: cannot find -lgcc_s: No such file or directory
/usr/bin/aarch64-linux-gnu-ld: cannot find -lgcc: No such file or directory
/usr/bin/aarch64-linux-gnu-ld: cannot find crtendS.o: No such file or directory
/usr/bin/aarch64-linux-gnu-ld: cannot find crtn.o: No such file or directory
clang: error: linker command failed with exit code 1 (use -v to see invocation)
gmake[1]: *** [CMakeFiles/cmTC_46f48.dir/build.make:100: cmTC_46f48] Error 1
gmake[1]: Leaving directory '/home/tom/test_app/build/elinux/arm64/release/CMakeFiles/CMakeTmp'
gmake: *** [Makefile:127: cmTC_46f48/fast] Error 2
CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
CMakeLists.txt:2 (project)
For more specification, i am using the flutter-elinux package to cross-compile and i have raised an issue there, but i am not sure the issue comes from the package as i don't know anything about linux compilation.
I have installed manually the following packages :
sudo apt install cpp-aarch64-linux-gnu
sudo apt install binutils-aarch64-linux-gnu
Thanks in advance for any help i really need to get this working...
EDIT : i have tried another solution using a docker container and the image arm64v8/ubuntu:18.04.
I have created a systroot ubuntu18-arm64-sysroot on my host and i use it to compile my app in arm64 arch. I am having the following error only :
Failed to cmake:
-- The CXX compiler identification is unknown
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - failed
-- Check for working CXX compiler: /home/tom/ubuntu18-arm64-sysroot/usr/bin/clang++
-- Check for working CXX compiler: /home/tom/ubuntu18-arm64-sysroot/usr/bin/clang++ - broken
-- Configuring incomplete, errors occurred!
See also "/home/tom/test_app/build/elinux/arm64/debug/CMakeFiles/CMakeOutput.log".
See also "/home/tom/test_app/build/elinux/arm64/debug/CMakeFiles/CMakeError.log".
CMake Error at /usr/share/cmake-3.22/Modules/CMakeTestCXXCompiler.cmake:62 (message):
The C++ compiler
"/home/tom/ubuntu18-arm64-sysroot/usr/bin/clang++"
is not able to compile a simple test program.
It fails with the following output:
Change Dir: /home/tom/test_app/build/elinux/arm64/debug/CMakeFiles/CMakeTmp
Run Build Command(s):/usr/bin/gmake -f Makefile cmTC_848af/fast && /usr/bin/gmake -f
CMakeFiles/cmTC_848af.dir/build.make CMakeFiles/cmTC_848af.dir/build
gmake[1]: Entering directory '/home/tom/test_app/build/elinux/arm64/debug/CMakeFiles/CMakeTmp'
Building CXX object CMakeFiles/cmTC_848af.dir/testCXXCompiler.cxx.o
/home/tom/ubuntu18-arm64-sysroot/usr/bin/clang++ -o CMakeFiles/cmTC_848af.dir/testCXXCompiler.cxx.o -c
/home/tom/test_app/build/elinux/arm64/debug/CMakeFiles/CMakeTmp/testCXXCompiler.cxx
aarch64-binfmt-P: Could not open '/lib/ld-linux-aarch64.so.1': No such file or directory
gmake[1]: *** [CMakeFiles/cmTC_848af.dir/build.make:78: CMakeFiles/cmTC_848af.dir/testCXXCompiler.cxx.o] Error 255
gmake[1]: Leaving directory '/home/tom/test_app/build/elinux/arm64/debug/CMakeFiles/CMakeTmp'
gmake: *** [Makefile:127: cmTC_848af/fast] Error 2
CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
CMakeLists.txt:2 (project)