MindSpore:aicpu自定义Reshape算子验证symbol报错

问题描述：

【功能模块】

CANN AICPU自定义算子开发模块

【操作步骤&问题现象】

实现aicpu算子自定义开发samples中的reshape网络验证，通过python ctypes调用时报错：

undefined symbol：_ZTIN14ascend_private8protobuf7MessageE

CANN版本20.2，环境是Centos_aarch64 Atlas 800-9000。

环境变量配置：
export install_path=/usr/local/Ascend/nnae/latest
export LD_LIBRARY_PATH=/usr/local/gcc-7.3.0/lib64:${install_path}/fwkacllib/lib64:/usr/local/Ascend/driver/lib64:/usr/local/Ascend/nnae/latest/fwkacllib/lib64:/usr/local/Ascend/ascend-toolkit/latest/opp/op_impl/built-in/ai_core/tbe/op_tiling

export PYTHONPATH=installpath/fwkacllib/python/site−packages:installpath/fwkacllib/python/site−packages:{install_path}/fwkacllib/python/site-packages/auto_tune.egg/auto_tune:${install_path}/fwkacllib/python/site-packages/schedule_search.egg

export PATH=/usr/local/gcc-7.3.0/bin:/usr/bin:/usr/local/bin:/usr/sbin:installpath/fwkacllib/cceccompiler/bin:installpath/fwkacllib/cceccompiler/bin:{install_path}/fwkacllib/bin
#export PATH=/usr/local/gcc-7.3.0/bin:/usr/bin:/usr/local/bin:/usr/sbin:/usr/local/Ascend/ascend-toolkit/latest/arm64-linux/atc/ccec_compiler/bin:/usr/local/Ascend/ascend-toolkit/latest/arm64-linux/atc/bin

export PYTHONPATH=/usr/local/Ascend/tfplugin/latest/tfplugin/python/site-packages:/usr/local/python3.7.5/lib/python3.7/site-packages:$PYTHONPATH

export ASCEND_OPP_PATH=/usr/local/Ascend/ascend-toolkit/latest/opp
export ASCEND_AICPU_PATH=/usr/local/Ascend/ascend-toolkit/latest
export TBE_IMPL_PATH=/usr/local/Ascend/ascend-toolkit/latest/arm64-linux/opp/op_impl/built-in/ai_core/tbe
export OPENSSL_ROOT_DIR=/usr/local/openssl
export TOOLCHAIN_HOME=/usr/local/Ascend/ascend-toolkit/latest/arm64-linux/toolkit

在编译过程中试图链接libascend_protpbuf.so以解决报错的问题，但是解决后引入了新的问题：

   试图分析问题的过程中发现，libcust_aicpu_kernel.so的编译依赖项中有/usr/localAscend/ascend-toolkit/20.2.rc1/arm64-linux/opp/op_impl/built-in/aicpu/aicpu_kernel/lib/libcpu_kernels_context.a，而该库中带有_ZNK14ascend_private8protobuf7Message11GetTypeNameB5cxx11Ev符号，猜测编译过程中将该符号引入，而与上图报错的_ZNK14ascend_private8protobuf7Message11GetTypeNameEv（libascend_protobuf.so所包含的符号）不同。

解决方案：

 c++filt  _ZNK14ascend_private8protobuf7Message11GetTypeNameEv

ascend_private::protobuf::Message::GetTypeName() const

环境或者版本问题，跟你写的代码没关系。使用MindSpore r1.2版本代码和与之相配套的run包再试试吧。