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##===----------------------------------------------------------------------===##
#
# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
# See https://llvm.org/LICENSE.txt for license information.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#
##===----------------------------------------------------------------------===##
#
# Build offloading library libomptarget.so.
#
##===----------------------------------------------------------------------===##
libomptarget_say("Building offloading runtime library libomptarget.")
if(LIBOMP_STANDALONE)
set(LIBOMP ${LIBOMP_STANDALONE})
else()
set(LIBOMP omp)
endif()
add_llvm_library(omptarget
SHARED
device.cpp
interface.cpp
omptarget.cpp
OffloadRTL.cpp
LegacyAPI.cpp
PluginManager.cpp
DeviceImage.cpp
OpenMP/API.cpp
OpenMP/Mapping.cpp
OpenMP/InteropAPI.cpp
OpenMP/OMPT/Callback.cpp
ADDITIONAL_HEADER_DIRS
${LIBOMPTARGET_INCLUDE_DIR}
LINK_COMPONENTS
Support
Object
LINK_LIBS
PUBLIC
${LIBOMP}
NO_INSTALL_RPATH
BUILDTREE_ONLY
)
target_include_directories(omptarget PRIVATE ${LIBOMPTARGET_INCLUDE_DIR})
if (LIBOMP_HAVE_VERSION_SCRIPT_FLAG)
target_link_libraries(omptarget PRIVATE
"-Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/exports")
endif()
# Define the TARGET_NAME and DEBUG_PREFIX.
target_compile_definitions(omptarget PRIVATE
TARGET_NAME=omptarget
DEBUG_PREFIX="omptarget"
)
target_compile_options(omptarget PUBLIC ${offload_compile_flags})
target_link_options(omptarget PUBLIC ${offload_link_flags})
macro(check_plugin_target target)
if (TARGET omptarget.rtl.${target})
list(APPEND LIBOMPTARGET_PLUGINS_TO_LOAD ${target})
endif()
endmacro()
set(LIBOMPTARGET_PLUGINS_TO_LOAD "" CACHE STRING
"Comma separated list of plugin names to look for at runtime")
if (NOT LIBOMPTARGET_PLUGINS_TO_LOAD)
check_plugin_target(ppc64)
check_plugin_target(x86_64)
check_plugin_target(cuda)
check_plugin_target(aarch64)
check_plugin_target(amdgpu)
check_plugin_target(s390x)
endif()
list(TRANSFORM LIBOMPTARGET_PLUGINS_TO_LOAD PREPEND "\"libomptarget.rtl.")
list(TRANSFORM LIBOMPTARGET_PLUGINS_TO_LOAD APPEND "\"")
list(JOIN LIBOMPTARGET_PLUGINS_TO_LOAD "," ENABLED_OFFLOAD_PLUGINS)
target_compile_definitions(omptarget PRIVATE ENABLED_OFFLOAD_PLUGINS=${ENABLED_OFFLOAD_PLUGINS})
# libomptarget.so needs to be aware of where the plugins live as they
# are now separated in the build directory.
set_target_properties(omptarget PROPERTIES
POSITION_INDEPENDENT_CODE ON
INSTALL_RPATH "$ORIGIN"
BUILD_RPATH "$ORIGIN:${CMAKE_CURRENT_BINARY_DIR}/..")
install(TARGETS omptarget LIBRARY COMPONENT omptarget DESTINATION "${OFFLOAD_INSTALL_LIBDIR}")
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