Cross-compile tensorflow c library for mips64 failed - tensorflow

Question

I found a problem when trying to cross-compile tensorflow c library for mips64 with mips64 cross-compile toolchains using cmake way. I want to deploy a small speech model on the mips64 board.
My steps:
I clone docker env and crooss compile using cmake way.
docker run -d -v /home/hart/Desktop/workspace/toolchains:/toochains --name=cmake_tflite tensorflow/tensorflow:latest-devel tail -f /dev/null
cmake cmds: `ARMCC_FLAGS="-Wall -O3"
ARMCC_PREFIX=/toochains/t31a/mips-gcc472-glibc216-64bit/bin/mips-linux-gnu-
cmake -DCMAKE_C_COMPILER=${ARMCC_PREFIX}gcc
-DCMAKE_CXX_COMPILER=${ARMCC_PREFIX}g++
-DCMAKE_C_FLAGS="${ARMCC_FLAGS}"
-DCMAKE_CXX_FLAGS="${ARMCC_FLAGS}"
-DCMAKE_VERBOSE_MAKEFILE:BOOL=ON
-DCMAKE_SYSTEM_NAME=Linux
../tensorflow_src/tensorflow/lite/c
Error found when running CMake cmds above:
Setting build type to Release, for debug builds use'-DCMAKE_BUILD_TYPE=Debug'.
CMake Warning at /build_t31a/abseil-cpp/absl/copts/AbseilConfigureCopts.cmake:30 (message):
Value of CMAKE_SYSTEM_PROCESSOR (mips) is unknown and cannot be used to set
ABSL_RANDOM_RANDEN_COPTS
Call Stack (most recent call first):
/build_t31a/abseil-cpp/CMake/AbseilHelpers.cmake:18 (include)
/build_t31a/abseil-cpp/CMakeLists.txt:85 (include)
CMake Error at /build_t31a/eigen/CMakeLists.txt:119 (message):
Can't link to the standard math library. Please report to the Eigen
developers, telling them about your platform.
-- Configuring incomplete, errors occurred!
See also "/build_t31a/CMakeFiles/CMakeOutput.log".
See also "/build_t31a/CMakeFiles/CMakeError.log".
What's wrong with my cross-compile steps? Is MIPS64 not supported?
I also leave this message on tensorflow github.
I will appreciate any reply.
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