llvm-capstone/openmp/libomptarget/cmake/Modules/LibomptargetGetDependencies.cmake
Joseph Huber 70c08dbcfb [Libomptarget] Remove the remote and ve plugins from libomptarget
These plugins are unmaintained and are not in a workable state. The VE
plugin has not been touched for years and has never had any running
tests. The remote plugin is in an unfinished state and is not production
ready upstream. These will need to be ported to the new nextgen
interface in the future if they are needed.

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D154548
2023-07-05 17:39:46 -05:00

155 lines
5.3 KiB
CMake

#
#//===----------------------------------------------------------------------===//
#//
#// 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
#//
#//===----------------------------------------------------------------------===//
#
# Try to detect in the system several dependencies required by the different
# components of libomptarget. These are the dependencies we have:
#
# libffi : required to launch target kernels given function and argument
# pointers.
# CUDA : required to control offloading to NVIDIA GPUs.
include (FindPackageHandleStandardArgs)
################################################################################
# Looking for LLVM...
################################################################################
if (OPENMP_STANDALONE_BUILD)
# Complete LLVM package is required for building libomptarget
# in an out-of-tree mode.
find_package(LLVM REQUIRED)
message(STATUS "Found LLVM ${LLVM_PACKAGE_VERSION}")
message(STATUS "Using LLVM in: ${LLVM_DIR}")
list(APPEND LIBOMPTARGET_LLVM_INCLUDE_DIRS ${LLVM_INCLUDE_DIRS})
list(APPEND CMAKE_MODULE_PATH ${LLVM_CMAKE_DIR})
include(AddLLVM)
if(TARGET omptarget)
message(FATAL_ERROR "CMake target 'omptarget' already exists. "
"Use an LLVM installation that doesn't expose its 'omptarget' target.")
endif()
else()
# Note that OPENMP_STANDALONE_BUILD is FALSE, when
# openmp is built with -DLLVM_ENABLE_RUNTIMES="openmp" vs
# -DLLVM_ENABLE_PROJECTS="openmp", but openmp build
# is actually done as a standalone project build with many
# LLVM CMake variables propagated to it.
list(APPEND LIBOMPTARGET_LLVM_INCLUDE_DIRS
${LLVM_MAIN_INCLUDE_DIR} ${LLVM_BINARY_DIR}/include
)
message(STATUS
"Using LLVM include directories: ${LIBOMPTARGET_LLVM_INCLUDE_DIRS}")
endif()
################################################################################
# Looking for libffi...
################################################################################
find_package(PkgConfig)
pkg_check_modules(LIBOMPTARGET_SEARCH_LIBFFI QUIET libffi)
find_path (
LIBOMPTARGET_DEP_LIBFFI_INCLUDE_DIR
NAMES
ffi.h
HINTS
${LIBOMPTARGET_SEARCH_LIBFFI_INCLUDEDIR}
${LIBOMPTARGET_SEARCH_LIBFFI_INCLUDE_DIRS}
PATHS
/usr/include
/usr/local/include
/opt/local/include
/sw/include
ENV CPATH)
# Don't bother look for the library if the header files were not found.
if (LIBOMPTARGET_DEP_LIBFFI_INCLUDE_DIR)
find_library (
LIBOMPTARGET_DEP_LIBFFI_LIBRARIES
NAMES
ffi
HINTS
${LIBOMPTARGET_SEARCH_LIBFFI_LIBDIR}
${LIBOMPTARGET_SEARCH_LIBFFI_LIBRARY_DIRS}
PATHS
/usr/lib
/usr/local/lib
/opt/local/lib
/sw/lib
ENV LIBRARY_PATH
ENV LD_LIBRARY_PATH)
endif()
set(LIBOMPTARGET_DEP_LIBFFI_INCLUDE_DIRS ${LIBOMPTARGET_DEP_LIBFFI_INCLUDE_DIR})
find_package_handle_standard_args(
LIBOMPTARGET_DEP_LIBFFI
DEFAULT_MSG
LIBOMPTARGET_DEP_LIBFFI_LIBRARIES
LIBOMPTARGET_DEP_LIBFFI_INCLUDE_DIRS)
mark_as_advanced(
LIBOMPTARGET_DEP_LIBFFI_INCLUDE_DIRS
LIBOMPTARGET_DEP_LIBFFI_LIBRARIES)
################################################################################
# Looking for CUDA...
################################################################################
find_package(CUDAToolkit QUIET)
set(LIBOMPTARGET_DEP_CUDA_FOUND ${CUDAToolkit_FOUND})
################################################################################
# Looking for NVIDIA GPUs...
################################################################################
set(LIBOMPTARGET_DEP_CUDA_ARCH "sm_35")
if(TARGET nvptx-arch)
get_property(LIBOMPTARGET_NVPTX_ARCH TARGET nvptx-arch PROPERTY LOCATION)
else()
find_program(LIBOMPTARGET_NVPTX_ARCH NAMES nvptx-arch
PATHS ${LLVM_TOOLS_BINARY_DIR}/bin)
endif()
if(LIBOMPTARGET_NVPTX_ARCH)
execute_process(COMMAND ${LIBOMPTARGET_NVPTX_ARCH}
OUTPUT_VARIABLE LIBOMPTARGET_NVPTX_ARCH_OUTPUT
OUTPUT_STRIP_TRAILING_WHITESPACE)
string(REPLACE "\n" ";" nvptx_arch_list "${LIBOMPTARGET_NVPTX_ARCH_OUTPUT}")
if(nvptx_arch_list)
set(LIBOMPTARGET_FOUND_NVIDIA_GPU TRUE)
set(LIBOMPTARGET_NVPTX_DETECTED_ARCH_LIST "${nvptx_arch_list}")
list(GET nvptx_arch_list 0 LIBOMPTARGET_DEP_CUDA_ARCH)
endif()
endif()
################################################################################
# Looking for AMD GPUs...
################################################################################
if(TARGET amdgpu-arch)
get_property(LIBOMPTARGET_AMDGPU_ARCH TARGET amdgpu-arch PROPERTY LOCATION)
else()
find_program(LIBOMPTARGET_AMDGPU_ARCH NAMES amdgpu-arch
PATHS ${LLVM_TOOLS_BINARY_DIR}/bin)
endif()
if(LIBOMPTARGET_AMDGPU_ARCH)
execute_process(COMMAND ${LIBOMPTARGET_AMDGPU_ARCH}
OUTPUT_VARIABLE LIBOMPTARGET_AMDGPU_ARCH_OUTPUT
OUTPUT_STRIP_TRAILING_WHITESPACE)
string(REPLACE "\n" ";" amdgpu_arch_list "${LIBOMPTARGET_AMDGPU_ARCH_OUTPUT}")
if(amdgpu_arch_list)
set(LIBOMPTARGET_FOUND_AMDGPU_GPU TRUE)
set(LIBOMPTARGET_AMDGPU_DETECTED_ARCH_LIST "${amdgpu_arch_list}")
endif()
endif()
set(OPENMP_PTHREAD_LIB ${LLVM_PTHREAD_LIB})