Missing test_library.h building runtime library for target aarch64

[zzzDavid]

Description

AIR reports a missing header during runtime library build for target aarch64. The test_library.h header is available under /runtime_lib/aarch64/test_lib/include, but for some reason the compiler only looks for /runtime_lib/x86_64/test_lib/include. I was able to work around this by setting CPLUS_INCLUDE_PATH but there probably is some hard-coded path pointed to x86.

Tool commit points

• MLIR-AIR @c3a9b505f06936a3e4c81c221ca9fac2a7d6dbad
• MLIR-AIE @d21ca563e0c0fd100a4bbd98d194e770ce33bd79

Repeat this issue

Compile AIR with runtime lib target aarch64:

cmake .. \
    -GNinja \
    -DCMAKE_C_COMPILER=clang \
    -DCMAKE_CXX_COMPILER=clang++ \
    -DCMAKE_INSTALL_PREFIX="../${INSTALL_DIR}" \
    -DArch=arm64 \
    -DgccVer=10.2.0 \
    -DCMAKE_USE_TOOLCHAIN=FALSE \
    -DCMAKE_USE_TOOLCHAIN_AIRHOST=TRUE \
    -DLLVM_DIR=${LLVM_DIR}/build/lib/cmake/llvm \
    -DMLIR_DIR=${LLVM_DIR}/build/lib/cmake/mlir \
    -DAIE_DIR=${MLIR_AIE_DIR}/build/lib/cmake/aie \
    -Dpybind11_DIR=${PYTHON_ROOT}/pybind11/share/cmake/pybind11 \
    -DAIR_RUNTIME_TARGETS:STRING="aarch64" \
    -Daarch64_TOOLCHAIN_FILE=/home/niansong/mlir-air/cmake/modules/toolchain_aarch64.cmake \
    -DBUILD_SHARED_LIBS=OFF \
    -DLLVM_USE_LINKER=lld \
    -DXILINX_XAIE_INCLUDE_DIR=/home/niansong/mlir-air/install/runtime_lib/aarch64/xaiengine/include \
    -DXILINX_XAIE_LIBS=/home/niansong/mlir-air/install/runtime_lib/aarch64/xaiengine/lib \
    -DCMAKE_MODULE_PATH=${CMAKEMODULES_DIR}/ \
    |& tee cmake.log

During build there's error message:

1 error generated.
[21/30] Building CXX object airhost/CMakeFiles/airhost.dir/queue.cpp.o
FAILED: airhost/CMakeFiles/airhost.dir/queue.cpp.o
/usr/bin/clang++-10 --sysroot=/group/xrlabs/platforms/vck190-pynq-v2.7/sysroot -DLIBXAIENGINEV2 -I/proj/rdi/staff/erweiw/niansong_end_of_internship/mlir-air/runtime_lib/airhost/include -I/proj/rdi/staff/erweiw/niansong_end_of_internship/mlir-air/utils/mlir-aie/include -I/proj/rdi/staff/erweiw/niansong_end_of_internship/mlir-air/utils/mlir-aie/build/include/../runtime_lib/x86_64/test_lib/include -I/group/xrlabs/platforms/vck190-pynq-v2.7/sysroot/opt/xaienginev2/include --sysroot=/group/xrlabs/platforms/vck190-pynq-v2.7/sysroot --target=aarch64-linux-gnu --gcc-toolchain=/group/xrlabs/platforms/vck190-pynq-v2.7/sysroot/usr -fuse-ld=lld-10 -Wno-unused-command-line-argument -std=gnu++14 -fPIC -MD -MT airhost/CMakeFiles/airhost.dir/queue.cpp.o -MF airhost/CMakeFiles/airhost.dir/queue.cpp.o.d -o airhost/CMakeFiles/airhost.dir/queue.cpp.o -c /proj/rdi/staff/erweiw/niansong_end_of_internship/mlir-air/runtime_lib/airhost/queue.cpp
In file included from /proj/rdi/staff/erweiw/niansong_end_of_internship/mlir-air/runtime_lib/airhost/queue.cpp:20:
/proj/rdi/staff/erweiw/niansong_end_of_internship/mlir-air/runtime_lib/airhost/include/air_host_impl.h:11:10: fatal error: 'test_library.h' file not found
#include "test_library.h"
         ^~~~~~~~~~~~~~~~
1 error generated.