llvm-project/openmp/module/CMakeLists.txt
2025-12-09 22:39:41 +01:00

77 lines
3.6 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
#//
#//===----------------------------------------------------------------------===//
include(LibompCheckFortranFlag)
set(LIBOMP_FFLAGS "" CACHE STRING
"Appended user specified Fortran compiler flags. These are only used if LIBOMP_FORTRAN_MODULES==TRUE.")
# Enabling Fortran if it is needed
if (LIBOMP_FORTRAN_MODULES)
enable_language(Fortran)
libomp_check_fortran_flag(-m32 LIBOMP_HAVE_M32_FORTRAN_FLAG)
endif ()
# Building the Fortran module files
# One compilation step creates both omp_lib.mod and omp_lib_kinds.mod
configure_file(omp_lib.F90.var omp_lib.F90 @ONLY)
configure_file(omp_lib.h.var "${CMAKE_CURRENT_BINARY_DIR}/../runtime/src/omp_lib.h" @ONLY)
set(BUILD_FORTRAN_MODULES False)
if (LIBOMP_FORTRAN_MODULES_COMPILER)
# If libomp is built as an LLVM runtime and the flang compiler is available,
# compile the Fortran module files.
message(STATUS "configuring openmp to build Fortran module files using '${LIBOMP_FORTRAN_MODULES_COMPILER}'")
set(LIBOMP_FORTRAN_SOURCE_FILE omp_lib.F90)
add_custom_target(libomp-mod ALL DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/../runtime/src/omp_lib.mod" "${CMAKE_CURRENT_BINARY_DIR}/../runtime/src/omp_lib_kinds.mod")
add_custom_command(
OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/../runtime/src/omp_lib.mod" "${CMAKE_CURRENT_BINARY_DIR}/../runtime/src/omp_lib_kinds.mod"
COMMAND ${LIBOMP_FORTRAN_MODULES_COMPILER} -cpp -fsyntax-only ${LIBOMP_FORTRAN_SOURCE_FILE} "-J${CMAKE_CURRENT_BINARY_DIR}/../runtime/src"
DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/${LIBOMP_FORTRAN_SOURCE_FILE}"
)
set(BUILD_FORTRAN_MODULES True)
elseif (LIBOMP_FORTRAN_MODULES)
# The following requests explicit building of the Fortran module files
# Workaround for gfortran to build modules with the
# omp_sched_monotonic integer parameter
if (CMAKE_Fortran_COMPILER_ID STREQUAL "GNU")
set(ADDITIONAL_Fortran_FLAGS "-fno-range-check")
endif ()
add_custom_target(libomp-mod ALL DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/../runtime/src/omp_lib.mod" "${CMAKE_CURRENT_BINARY_DIR}/../runtime/src/omp_lib_kinds.mod")
set_target_properties(libomp-mod PROPERTIES FOLDER "OpenMP/Misc")
libomp_get_fflags(LIBOMP_CONFIGURED_FFLAGS)
if (CMAKE_Fortran_COMPILER_SUPPORTS_F90)
set(LIBOMP_FORTRAN_SOURCE_FILE omp_lib.F90)
else ()
message(FATAL_ERROR "Fortran module build requires Fortran 90 compiler")
endif ()
add_custom_command(
OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/../runtime/src/omp_lib.mod" "${CMAKE_CURRENT_BINARY_DIR}/../runtime/src/omp_lib_kinds.mod"
COMMAND ${CMAKE_Fortran_COMPILER} -c ${ADDITIONAL_Fortran_FLAGS}
${LIBOMP_CONFIGURED_FFLAGS} ${LIBOMP_FORTRAN_SOURCE_FILE} "-J${CMAKE_CURRENT_BINARY_DIR}/../runtime/src"
DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/${LIBOMP_FORTRAN_SOURCE_FILE}"
)
set_property(DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/../runtime/src" PROPERTY ADDITIONAL_MAKE_CLEAN_FILES "omp_lib${CMAKE_C_OUTPUT_EXTENSION}")
set(BUILD_FORTRAN_MODULES True)
endif ()
if (BUILD_FORTRAN_MODULES)
set(destination "${LIBOMP_HEADERS_INSTALL_PATH}")
if (LIBOMP_MODULES_INSTALL_PATH)
set(destination "${LIBOMP_MODULES_INSTALL_PATH}")
endif ()
install(FILES
"${CMAKE_CURRENT_BINARY_DIR}/../runtime/src/omp_lib.mod"
"${CMAKE_CURRENT_BINARY_DIR}/../runtime/src/omp_lib_kinds.mod"
"${CMAKE_CURRENT_BINARY_DIR}/../runtime/src/omp_lib.h"
DESTINATION ${destination}
)
endif ()