rocAL HIP GPU backend- switch to object library for the HIP rocAL ker…

…nels (#660)

rocAL/rocAL/CMakeLists.txt

@@ -215,7 +215,7 @@ if(${BUILD_RALI})
     endif()
 
     if("${BACKEND}" STREQUAL "HIP" AND HIP_FOUND)
-        target_link_libraries(${PROJECT_NAME} rocAL_hip)
+        target_link_libraries(${PROJECT_NAME} $<TARGET_OBJECTS:rocAL_hip>)
     endif()
 
     install(TARGETS rali DESTINATION lib)

rocAL/rocAL/rocAL_hip/CMakeLists.txt

@@ -21,18 +21,15 @@
 cmake_minimum_required(VERSION 3.5)
 project(rocAL_hip CXX)
 
-set(RALIHIP_SOURCES
+set(rocAL_HIP_SOURCES
     rali_hip_kernels.cpp
     )
 
-if(HIP_COMPILER STREQUAL clang)
-    set(hip_library_name amdhip64)
-endif()
-#message("HIP library name: ${hip_library_name}")
-
-set_source_files_properties(${RALIHIP_SOURCES} PROPERTIES HIP_SOURCE_PROPERTY_FORMAT 1)
-set(HIP_HCC_FLAGS -std=c++14)
-hip_add_library(${PROJECT_NAME} ${RALIHIP_SOURCES} HIPCC_OPTIONS "${HIP_HCC_FLAGS}"  SHARED)
-target_compile_definitions(${PROJECT_NAME} PRIVATE)
-message("-- CMake CXX Compiler " ${CMAKE_CXX_COMPILER})
-install(TARGETS ${PROJECT_NAME} DESTINATION lib)
+set_source_files_properties(${rocAL_HIP_SOURCES} PROPERTIES HIP_SOURCE_PROPERTY_FORMAT 1)
+set(HIP_CXX_FLAGS -std=c++14)
+set(COMPILER_FOR_HIP ${ROCM_PATH}/bin/hipcc)
+set(CMAKE_CXX_COMPILER ${COMPILER_FOR_HIP})
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${HIP_CXX_FLAGS}")
+add_library(${PROJECT_NAME} OBJECT ${rocAL_HIP_SOURCES})
+set_target_properties(${PROJECT_NAME} PROPERTIES POSITION_INDEPENDENT_CODE ON)
+target_compile_definitions(${PROJECT_NAME} PRIVATE __HIP_PLATFORM_HCC__)