Unable to compile on ARM using conan - Fatal error: bad defsym; format is --defsym name=value

[Paulo Roberto Balbino (paulorb)]

Hi everyone,

I am trying to cross-compile onnxruntime/1.18.1 using conan recipe on arm on top of nvidia jetpack compilation docker image (nvcr.io/nvidia/jetpack-linux-aarch64-crosscompile-x86)
and I am having the following error: Fatal error: bad defsym; format is --defsym name=value

From what I undestood it is trying include this assembly code ConvSymS8KernelDot.S which is an optimized quantized convolution code for ARM.

Do you guys faced any similar issue? Is there any way to bypass this or fix? LLMs suggested a couple of ways to bypass it with some preprocessor flags but those doesn't exists.

onnxruntime/1.18.1: Running CMake.build()
onnxruntime/1.18.1: RUN: cmake --build "/root/.conan2/p/b/onnxr7167a00658a8d/b/build/Release" -- -j16
[0/2] Re-checking globbed directories...
[35/507] Building ASM object CMakeFiles/onnxruntime_mlas.dir/root/.conan2/p/b/onnxr7167a00658a8d/b/src/onnxruntime/core/mlas/lib/aarch64/ConvSymS8KernelDot.S.o
FAILED: CMakeFiles/onnxruntime_mlas.dir/root/.conan2/p/b/onnxr7167a00658a8d/b/src/onnxruntime/core/mlas/lib/aarch64/ConvSymS8KernelDot.S.o
/usr/bin/aarch64-linux-gnu-as --defsym EIGEN_MPL2_ONLY --defsym EIGEN_USE_THREADS --defsym NSYNC_ATOMIC_CPP11 --defsym ORT_ENABLE_STREAM --defsym PLATFORM_POSIX --defsym _GNU_SOURCE --defsym _SILENCE_ALL_CXX23_DEPRECATION_WARNINGS=1 -I/root/.conan2/p/b/absei4ded80b62c224/p/include -I/root/.conan2/p/b/date1d6ebbe0ed9d6/p/include -I/root/.conan2/p/b/nsync5275831b00931/p/include -I/root/.conan2/p/ms-gs000db09c5aa93/p/include -I/root/.conan2/p/safei5adbfb10f2187/p/include -I/root/.conan2/p/b/onnxr7167a00658a8d/b/src/include/onnxruntime -I/root/.conan2/p/b/onnxr7167a00658a8d/b/src/include/onnxruntime/core/session -I/root/.conan2/p/b/cpuina7b50be06329e/p/include -I/root/.conan2/p/b/onnxr7167a00658a8d/b/build/Release -I/root/.conan2/p/b/onnxr7167a00658a8d/b/src/onnxruntime -I/root/.conan2/p/b/onnxr7167a00658a8d/b/src/onnxruntime/core/mlas/inc -I/root/.conan2/p/b/onnxr7167a00658a8d/b/src/onnxruntime/core/mlas/lib -O3 -DNDEBUG -fPIC -Wall -Wextra --MD CMakeFiles/onnxruntime_mlas.dir/root/.conan2/p/b/onnxr7167a00658a8d/b/src/onnxruntime/core/mlas/lib/aarch64/ConvSymS8KernelDot.S.o.d -o CMakeFiles/onnxruntime_mlas.dir/root/.conan2/p/b/onnxr7167a00658a8d/b/src/onnxruntime/core/mlas/lib/aarch64/ConvSymS8KernelDot.S.o -c /root/.conan2/p/b/onnxr7167a00658a8d/b/src/onnxruntime/core/mlas/lib/aarch64/ConvSymS8KernelDot.S
Assembler messages:
Fatal error: bad defsym; format is --defsym name=value
[45/507] Building CXX object CMakeFiles/onnxruntime_common.dir/root/.conan2/p/b/onnxr7167a00658a8d/b/src/onnxruntime/core/common/threadpool.cc.o
In file included from /root/.conan2/p/eigen4d77fa21bd370/p/include/eigen3/unsupported/Eigen/CXX11/Tensor:63,
                 from /root/.conan2/p/b/onnxr7167a00658a8d/b/src/include/onnxruntime/core/common/eigen_common_wrapper.h:64,
                 from /root/.conan2/p/b/onnxr7167a00658a8d/b/src/onnxruntime/core/common/threadpool.cc:22:
/root/.conan2/p/eigen4d77fa21bd370/p/include/eigen3/unsupported/Eigen/CXX11/src/Tensor/TensorDeviceThreadPool.h: In lambda function:
/root/.conan2/p/eigen4d77fa21bd370/p/include/eigen3/unsupported/Eigen/CXX11/src/Tensor/TensorDeviceThreadPool.h:210:19: warning: implicit capture of ‘this’ via ‘[=]’ is deprecated in C++20 [-Wdeprecated]
  210 |     handleRange = [=, &handleRange, &barrier, &f](Index firstIdx,
      |                   ^
/root/.conan2/p/eigen4d77fa21bd370/p/include/eigen3/unsupported/Eigen/CXX11/src/Tensor/TensorDeviceThreadPool.h:210:19: note: add explicit ‘this’ or ‘*this’ capture
In file included from /root/.conan2/p/eigen4d77fa21bd370/p/include/eigen3/unsupported/Eigen/CXX11/Tensor:91,
                 from /root/.conan2/p/b/onnxr7167a00658a8d/b/src/include/onnxruntime/core/common/eigen_common_wrapper.h:64,
                 from /root/.conan2/p/b/onnxr7167a00658a8d/b/src/onnxruntime/core/common/threadpool.cc:22:
/root/.conan2/p/eigen4d77fa21bd370/p/include/eigen3/unsupported/Eigen/CXX11/src/Tensor/TensorContractionThreadPool.h: In lambda function:
/root/.conan2/p/eigen4d77fa21bd370/p/include/eigen3/unsupported/Eigen/CXX11/src/Tensor/TensorContractionThreadPool.h:1009:13: warning: implicit capture of ‘this’ via ‘[=]’ is deprecated in C++20 [-Wdeprecated]
 1009 |             [=]() { kernel(m, n, k, use_thread_local); });
      |             ^
/root/.conan2/p/eigen4d77fa21bd370/p/include/eigen3/unsupported/Eigen/CXX11/src/Tensor/TensorContractionThreadPool.h:1009:13: note: add explicit ‘this’ or ‘*this’ capture
/root/.conan2/p/eigen4d77fa21bd370/p/include/eigen3/unsupported/Eigen/CXX11/src/Tensor/TensorContractionThreadPool.h: In lambda function:
/root/.conan2/p/eigen4d77fa21bd370/p/include/eigen3/unsupported/Eigen/CXX11/src/Tensor/TensorContractionThreadPool.h:1063:15: warning: implicit capture of ‘this’ via ‘[=]’ is deprecated in C++20 [-Wdeprecated]
 1063 |               [=]() { enqueue_packing_helper(mid, end, k, rhs); });
      |               ^
/root/.conan2/p/eigen4d77fa21bd370/p/include/eigen3/unsupported/Eigen/CXX11/src/Tensor/TensorContractionThreadPool.h:1063:15: note: add explicit ‘this’ or ‘*this’ capture
/root/.conan2/p/eigen4d77fa21bd370/p/include/eigen3/unsupported/Eigen/CXX11/src/Tensor/TensorContractionThreadPool.h: In lambda function:
/root/.conan2/p/eigen4d77fa21bd370/p/include/eigen3/unsupported/Eigen/CXX11/src/Tensor/TensorContractionThreadPool.h:1082:15: warning: implicit capture of ‘this’ via ‘[=]’ is deprecated in C++20 [-Wdeprecated]
 1082 |               [=]() { enqueue_packing_helper(start, end, k, rhs); });
      |               ^
/root/.conan2/p/eigen4d77fa21bd370/p/include/eigen3/unsupported/Eigen/CXX11/src/Tensor/TensorContractionThreadPool.h:1082:15: note: add explicit ‘this’ or ‘*this’ capture
[50/507] Building CXX object CMakeFiles/onnxruntime_mlas.dir/root/.conan2/p/b/onnxr7167a00658a8d/b/src/onnxruntime/core/mlas/lib/q4_dq.cpp.o
ninja: build stopped: subcommand failed.

onnxruntime/1.18.1: ERROR:
Package 'c91cb4a594fdbdae6fa2be85c09ea235714ca928' build failed
onnxruntime/1.18.1: WARN: Build folder /root/.conan2/p/b/onnxr7167a00658a8d/b/build/Release
ERROR: onnxruntime/1.18.1: Error in build() method, line 183
	cmake.build()
	ConanException: Error 1 while executing