Revamp testing for cross-compilation validation

Make sure packages built with cross-compilation can still be tested on
their target architecture afterwards.

recipe/meta.yaml

@@ -75,16 +75,12 @@ outputs:
         - test.cpp
         - test.cu
         - CMakeLists.txt
-        - run_cmake_cuda_tests.sh  # [linux]
+        - run_nvcc_tests.sh   # [linux]
+        - run_nvcc_tests.bat  # [win]
       commands:
         - {{ exists }} nvcc
-        - nvcc --version
-        - $CXX --verbose ${CXXFLAGS} -lcuda -lcudart_static test.cpp  # [linux]
-        - cl /Tp test.cpp /link /LIBPATH:"%CONDA_PREFIX%\Library\lib" cudart_static.lib /out:test_nvcc.exe  # [win]
-        - nvcc --verbose test.cu
-        - cmake ${CMAKE_ARGS} -S . -B ./build -G=Ninja
-        - cmake --build ./build -v
-        - bash ./run_cmake_cuda_tests.sh  # [linux]
+        - ./run_nvcc_tests.sh   # [linux]
+        - .\run_nvcc_tests.bat  # [win]
         - test -f $PREFIX/etc/conda/activate.d/~cuda-nvcc_activate.sh      # [linux]
         - test -f $PREFIX/etc/conda/deactivate.d/~cuda-nvcc_deactivate.sh  # [linux]
     about:

recipe/run_nvcc_tests.bat

@@ -0,0 +1,18 @@
+@echo on
+
+nvcc --version
+if errorlevel 1 exit 1
+
+
+cl /Tp test.cpp /link /LIBPATH:"%CONDA_PREFIX%\Library\lib" cudart_static.lib /out:test_nvcc.exe
+if errorlevel 1 exit 1
+
+nvcc --verbose test.cu
+if errorlevel 1 exit 1
+
+
+cmake %CMAKE_ARGS% -S . -B ./build -G=Ninja
+if errorlevel 1 exit 1
+
+cmake --build ./build -v
+if errorlevel 1 exit 1

recipe/run_nvcc_tests.sh

@@ -0,0 +1,70 @@
+#!/bin/bash
+set -e
+set -x
+
+kernel_name="$(uname -s)"
+if [[ "${kernel_name}" != "Linux" ]]
+then
+  echo "Unknown OS. Expected Linux, but found ${kernel_name}"
+  exit 1
+fi
+
+processor_name="$(uname -m)"
+case "${processor_name}" in
+  "x86_64") test_platform="linux-64" ;;
+  "aarch64") test_platform="linux-aarch64" ;;
+  "ppc64le") test_platform="linux-ppc64le" ;;
+  *) echo "Unknown architecture: ${processor_name}" && exit 1 ;;
+esac
+
+if [[ "${test_platform}" != "${target_platform}" ]]
+then
+  echo "Skipping NVCC testing as current platform is ${test_platform}, whereas; NVCC is built for ${target_platform}."
+  exit 0
+fi
+
+cmake_version=$(cmake --version | grep version | awk '{print $3}')
+
+nvcc --version
+
+$CXX --verbose ${CXXFLAGS} -lcuda -lcudart_static test.cpp
+
+nvcc --verbose test.cu
+
+cmake ${CMAKE_ARGS} -S . -B ./build -G=Ninja
+cmake --build ./build -v
+
+if [[ "${target_platform}" == "linux-ppc64le" ]]
+then
+  echo "Skipping CMake tests on ${target_platform} due to known issues."
+  exit 0
+fi
+
+mkdir -p cmake-tests
+git clone -b v${cmake_version} --depth 1 https://gitlab.kitware.com/cmake/cmake.git cmake-tests
+cmake -S cmake-tests -B cmake-tests/build -DCMake_TEST_HOST_CMAKE=ON -DCMake_TEST_CUDA=nvcc -G "Ninja"
+cd cmake-tests/build
+
+# Test exclusion list:
+# Requires cublas
+#   Cuda.ProperDeviceLibraries
+#
+# Requires curand
+#   *SharedRuntime*
+#
+# Requires execution on a machine with a CUDA GPU
+#   Cuda.ObjectLibrary
+#   Cuda.WithC
+#   Cuda.StubRPATH
+#   CudaOnly.ArchSpecial
+#   CudaOnly.GPUDebugFlag
+#   CudaOnly.SeparateCompilationPTX
+#   CudaOnly.WithDefs
+#   CudaOnly.CUBIN
+#   CudaOnly.Fatbin
+#   CudaOnly.OptixIR
+#   RunCMake.CUDA_architectures
+#   *Toolkit*
+# Failing due to undefined symbol: __libc_dl_error_tsd, version GLIBC_PRIVATE
+#   Cuda.Complex
+CUDAHOSTCXX=$CXX ctest -L CUDA --output-on-failure -j $(nproc) -E "(ProperDeviceLibraries|SharedRuntime|ObjectLibrary|WithC|StubRPATH|ArchSpecial|GPUDebugFlag|SeparateCompilationPTX|WithDefs|CUBIN|Fatbin|OptixIR|CUDA_architectures|Toolkit|Cuda.Complex)"