mirror of
https://github.com/HDFGroup/hdf5.git
synced 2024-12-21 07:51:46 +08:00
468 lines
16 KiB
CMake
468 lines
16 KiB
CMake
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## Check for non-standard extenstion quadmath.h
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CHECK_INCLUDE_FILES(quadmath.h C_HAVE_QUADMATH)
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if (${C_HAVE_QUADMATH})
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set(HAVE_QUADMATH 1)
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else ()
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set(HAVE_QUADMATH 0)
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endif()
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#
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# This file provides functions for HDF5 specific Fortran support.
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#
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#-------------------------------------------------------------------------------
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ENABLE_LANGUAGE (Fortran)
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# The provided CMake Fortran macros don't provide a general compile/run function
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# so this one is used.
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#-----------------------------------------------------------------------------
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MACRO (FORTRAN_RUN FUNCTION CODE RUN_RESULT_VAR1 COMPILE_RESULT_VAR RETURN)
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#
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# if (NOT DEFINED ${RUN_RESULT_VAR})
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message (STATUS "Detecting Fortran ${FUNCTION}")
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if (CMAKE_REQUIRED_LIBRARIES)
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set (CHECK_FUNCTION_EXISTS_ADD_LIBRARIES
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"-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}")
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else (CMAKE_REQUIRED_LIBRARIES)
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set (CHECK_FUNCTION_EXISTS_ADD_LIBRARIES)
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endif (CMAKE_REQUIRED_LIBRARIES)
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file (WRITE
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${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testFortranCompiler1.f90
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"${CODE}"
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)
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TRY_RUN (RUN_RESULT_VAR COMPILE_RESULT_VAR
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${CMAKE_BINARY_DIR}
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${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testFortranCompiler1.f90
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CMAKE_FLAGS "${CHECK_FUNCTION_EXISTS_ADD_LIBRARIES}"
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RUN_OUTPUT_VARIABLE OUTPUT
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)
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set(${RETURN} ${OUTPUT})
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#message ( "Test result1 ${RETURN} ")
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#message ( "Test result3 ${RESULT} ")
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#message ( "Test result2 ${CMAKE_MATCH_0} ")
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#message ( "Test result4 ${CMAKE_MATCH_1} ")
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#message ( "* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ")
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#message ( "Test result2 ${COMPILE_RESULT_VAR} ")
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#message ( "* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ")
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#message ( "Test result1 ${RUN_RESULT_VAR} ")
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#message ( "* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ")
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if (${COMPILE_RESULT_VAR})
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if (${RUN_RESULT_VAR} MATCHES 0)
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message (STATUS "Testing Fortran ${FUNCTION} - OK")
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file (APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
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"Determining if the Fortran ${FUNCTION} exists passed with the following output:\n"
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"${OUTPUT}\n\n"
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)
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else ()
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message (STATUS "Testing Fortran ${FUNCTION} - Fail")
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file (APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
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"Determining if the Fortran ${FUNCTION} exists failed with the following output:\n"
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"${OUTPUT}\n\n")
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endif ()
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endif ()
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# endif (NOT DEFINED ${RUN_RESULT_VAR})
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ENDMACRO (FORTRAN_RUN)
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# Read source line beginning at the line matching Input:"START" and ending at the line matching Input:"END"
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MACRO (READ_SOURCE START END RETURN)
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file(READ "${HDF5_SOURCE_DIR}/m4/aclocal_fc.f90" CODE)
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string(REGEX MATCH "${START}[\\\t\\\n\\\r[].+]*${END}" CODE ${CODE})
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set(RETURN "${CODE}")
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ENDMACRO (READ_SOURCE START END RETURN)
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#-----------------------------------------------------------------------------
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# Check to see C_LONG_DOUBLE is available
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READ_SOURCE("PROGRAM PROG_FC_HAVE_C_LONG_DOUBLE" "END PROGRAM PROG_FC_HAVE_C_LONG_DOUBLE" CODE)
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CHECK_FORTRAN_FEATURE(c_long_double
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"${CODE}"
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FORTRAN_HAVE_C_LONG_DOUBLE
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)
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if (${FORTRAN_HAVE_C_LONG_DOUBLE})
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set(FORTRAN_HAVE_C_LONG_DOUBLE 1)
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else ()
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set(FORTRAN_HAVE_C_LONG_DOUBLE 0)
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endif()
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# Check to see C_LONG_DOUBLE is different from C_DOUBLE
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READ_SOURCE("MODULE type_mod" "END PROGRAM PROG_FC_C_LONG_DOUBLE_EQ_C_DOUBLE" CODE)
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CHECK_FORTRAN_FEATURE(c_long_double
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"${CODE}"
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FORTRAN_C_LONG_DOUBLE_IS_UNIQUE
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)
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if (${FORTRAN_C_LONG_DOUBLE_IS_UNIQUE})
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set(FORTRAN_C_LONG_DOUBLE_IS_UNIQUE 1)
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else ()
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set(FORTRAN_C_LONG_DOUBLE_IS_UNIQUE 0)
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endif()
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## Set the sizeof function for use later in the fortran tests
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if(FORTRAN_HAVE_STORAGE_SIZE)
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set(FC_SIZEOF_A "STORAGE_SIZE(a, c_size_t)/STORAGE_SIZE(c_char_'a',c_size_t)")
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set(FC_SIZEOF_B "STORAGE_SIZE(b, c_size_t)/STORAGE_SIZE(c_char_'a',c_size_t)")
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set(FC_SIZEOF_C "STORAGE_SIZE(c, c_size_t)/STORAGE_SIZE(c_char_'a',c_size_t)")
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elseif(FORTRAN_HAVE_C_SIZEOF)
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set(FC_SIZEOF_A "SIZEOF(a)")
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set(FC_SIZEOF_B "SIZEOF(b)")
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set(FC_SIZEOF_C "SIZEOF(c)")
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else(FORTRAN_HAVE_STORAGE_SIZE)
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message (FATAL_ERROR "Fortran compiler requires either intrinsic functions SIZEOF or STORAGE_SIZE")
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endif(FORTRAN_HAVE_STORAGE_SIZE)
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#-----------------------------------------------------------------------------
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# Determine the available KINDs for REALs and INTEGERs
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#-----------------------------------------------------------------------------
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READ_SOURCE("PROGRAM FC_AVAIL_KINDS" "END PROGRAM FC_AVAIL_KINDS" CODE)
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FORTRAN_RUN("REAL and INTEGER KINDs"
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"${CODE}"
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XX
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YY
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PROG_OUTPUT
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)
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# dnl The output from the above program will be:
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# dnl -- LINE 1 -- valid integer kinds (comma seperated list)
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# dnl -- LINE 2 -- valid real kinds (comma seperated list)
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# dnl -- LINE 3 -- max decimal precision for reals
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# dnl -- LINE 4 -- number of valid integer kinds
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# dnl -- LINE 5 -- number of valid real kinds
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file(READ "${CMAKE_BINARY_DIR}/pac_fconftest.out" PROG_OUTPUT)
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# Convert the string to a list of strings by replacing the carriage return with a semicolon
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string(REGEX REPLACE "\n" ";" PROG_OUTPUT "${PROG_OUTPUT}")
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list(GET PROG_OUTPUT 0 pac_validIntKinds)
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list(GET PROG_OUTPUT 1 pac_validRealKinds)
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list(GET PROG_OUTPUT 2 H5_PAC_FC_MAX_REAL_PRECISION)
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# If the lists are empty then something went wrong.
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if( NOT pac_validIntKinds)
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message (FATAL_ERROR "Failed to find available INTEGER KINDs for Fortran")
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endif()
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if( NOT pac_validRealKinds)
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message (FATAL_ERROR "Failed to find available REAL KINDs for Fortran")
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endif()
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if( NOT H5_PAC_FC_MAX_REAL_PRECISION)
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message (FATAL_ERROR "No output from Fortran decimal precision program")
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endif()
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set(PAC_FC_ALL_INTEGER_KINDS "\{${pac_validIntKinds}\}")
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set(PAC_FC_ALL_REAL_KINDS "\{${pac_validRealKinds}\}")
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list(GET PROG_OUTPUT 3 NUM_IKIND)
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list(GET PROG_OUTPUT 4 NUM_RKIND)
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set(PAC_FORTRAN_NUM_INTEGER_KINDS "${NUM_IKIND}")
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set(H5CONFIG_F_NUM_IKIND "INTEGER, PARAMETER :: num_ikinds = ${NUM_IKIND}")
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set(H5CONFIG_F_IKIND "INTEGER, DIMENSION(1:num_ikinds) :: ikind = (/${pac_validIntKinds}/)")
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message (STATUS "....NUMBER OF INTEGER KINDS FOUND ${PAC_FORTRAN_NUM_INTEGER_KINDS}")
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message (STATUS "....REAL KINDS FOUND ${PAC_FC_ALL_REAL_KINDS}")
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message (STATUS "....INTEGER KINDS FOUND ${PAC_FC_ALL_REAL_KINDS}")
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message (STATUS "....MAX DECIMAL PRECISION ${H5_PAC_FC_MAX_REAL_PRECISION}")
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#-----------------------------------------------------------------------------
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# Determine the available KINDs for REALs and INTEGERs
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#-----------------------------------------------------------------------------
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# **********
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# INTEGERS
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# **********
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string(REGEX REPLACE "," ";" VAR "${pac_validIntKinds}")
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foreach( KIND ${VAR} )
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set(PROG_SRC
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"
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PROGRAM main
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USE ISO_C_BINDING
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IMPLICIT NONE
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INTEGER (KIND=${KIND}) a
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WRITE(*,'(I0)') ${FC_SIZEOF_A}
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END
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"
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)
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FORTRAN_RUN("INTEGER KIND SIZEOF" ${PROG_SRC}
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XX
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YY
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PROG_OUTPUT1
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)
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string(REGEX REPLACE "\n" "" PROG_OUTPUT1 "${PROG_OUTPUT1}")
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set(pack_int_sizeof "${pack_int_sizeof} ${PROG_OUTPUT1},")
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endforeach(KIND)
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if (pack_int_sizeof STREQUAL "")
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message (FATAL_ERROR "Failed to find available INTEGER KINDs for Fortran")
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endif()
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string(STRIP ${pack_int_sizeof} pack_int_sizeof)
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#Remove trailing comma
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string(REGEX REPLACE ",$" "" pack_int_sizeof "${pack_int_sizeof}")
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#Remove spaces
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string(REGEX REPLACE " " "" pack_int_sizeof "${pack_int_sizeof}")
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set(PAC_FC_ALL_INTEGER_KINDS_SIZEOF "\{${pack_int_sizeof}\}")
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message(STATUS "....FOUND SIZEOF for INTEGER KINDs ${PAC_FC_ALL_INTEGER_KINDS_SIZEOF}")
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# **********
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# REALS
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# **********
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string(REGEX REPLACE "," ";" VAR "${pac_validRealKinds}")
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#find the maximum kind of the real
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list(LENGTH VAR LEN_VAR)
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MATH (EXPR _LEN "${LEN_VAR}-1")
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list(GET VAR ${_LEN} max_real_fortran_kind)
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foreach( KIND ${VAR} )
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set(PROG_SRC
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"
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PROGRAM main
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USE ISO_C_BINDING
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IMPLICIT NONE
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REAL (KIND=${KIND}) a
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WRITE(*,'(I0)') ${FC_SIZEOF_A}
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END
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"
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)
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FORTRAN_RUN("REAL KIND SIZEOF" ${PROG_SRC}
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XX
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YY
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PROG_OUTPUT1
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)
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string(REGEX REPLACE "\n" "" PROG_OUTPUT1 "${PROG_OUTPUT1}")
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set(pack_real_sizeof "${pack_real_sizeof} ${PROG_OUTPUT1},")
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endforeach(KIND)
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if (pack_int_sizeof STREQUAL "")
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message (FATAL_ERROR "Failed to find available REAL KINDs for Fortran")
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endif()
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string(STRIP ${pack_real_sizeof} pack_real_sizeof)
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#Remove trailing comma
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string(REGEX REPLACE ",$" "" pack_real_sizeof "${pack_real_sizeof}")
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#Remove spaces
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string(REGEX REPLACE " " "" pack_real_sizeof "${pack_real_sizeof}")
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set(H5CONFIG_F_RKIND_SIZEOF "INTEGER, DIMENSION(1:num_rkinds) :: rkind_sizeof = (/${pack_real_sizeof}/)")
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message(STATUS "....FOUND SIZEOF for REAL KINDs \{${pack_real_sizeof}\}")
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set(PAC_FC_ALL_REAL_KINDS_SIZEOF "\{${pack_real_sizeof}\}")
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#find the maximum kind of the real
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string(REGEX REPLACE "," ";" VAR "${pack_real_sizeof}")
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list(LENGTH VAR LEN_VAR)
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MATH (EXPR _LEN "${LEN_VAR}-1")
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list(GET VAR ${_LEN} max_real_fortran_sizeof)
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#-----------------------------------------------------------------------------
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# Find sizeof of native kinds
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#-----------------------------------------------------------------------------
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FORTRAN_RUN("SIZEOF NATIVE KINDs"
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"
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PROGRAM main
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USE ISO_C_BINDING
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IMPLICIT NONE
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INTEGER a
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REAL b
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DOUBLE PRECISION c
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WRITE(*,*) ${FC_SIZEOF_A}
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WRITE(*,*) kind(a)
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WRITE(*,*) ${FC_SIZEOF_B}
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WRITE(*,*) kind(b)
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WRITE(*,*) ${FC_SIZEOF_C}
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WRITE(*,*) kind(c)
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END
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"
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XX
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YY
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PROG_OUTPUT
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)
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# dnl The output from the above program will be:
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# dnl -- LINE 1 -- sizeof INTEGER
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# dnl -- LINE 2 -- kind of INTEGER
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# dnl -- LINE 3 -- sizeof REAL
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# dnl -- LINE 4 -- kind of REAL
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# dnl -- LINE 5 -- sizeof DOUBLE PRECISION
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# dnl -- LINE 6 -- kind of DOUBLE PRECISION
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# Convert the string to a list of strings by replacing the carriage return with a semicolon
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string(REGEX REPLACE "\n" ";" PROG_OUTPUT "${PROG_OUTPUT}")
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list(GET PROG_OUTPUT 0 PAC_FORTRAN_NATIVE_INTEGER_SIZEOF)
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list(GET PROG_OUTPUT 1 PAC_FORTRAN_NATIVE_INTEGER_KIND)
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list(GET PROG_OUTPUT 2 PAC_FORTRAN_NATIVE_REAL_SIZEOF)
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list(GET PROG_OUTPUT 3 PAC_FORTRAN_NATIVE_REAL_KIND)
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list(GET PROG_OUTPUT 4 PAC_FORTRAN_NATIVE_DOUBLE_SIZEOF)
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list(GET PROG_OUTPUT 5 PAC_FORTRAN_NATIVE_DOUBLE_KIND)
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if (NOT PAC_FORTRAN_NATIVE_INTEGER_SIZEOF)
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message (FATAL_ERROR "Failed to find SIZEOF NATIVE INTEGER KINDs for Fortran")
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endif()
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if (NOT PAC_FORTRAN_NATIVE_REAL_SIZEOF)
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message (FATAL_ERROR "Failed to find SIZEOF NATIVE REAL KINDs for Fortran")
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endif()
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if (NOT PAC_FORTRAN_NATIVE_DOUBLE_SIZEOF)
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message (FATAL_ERROR "Failed to find SIZEOF NATIVE DOUBLE KINDs for Fortran")
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endif()
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if (NOT PAC_FORTRAN_NATIVE_INTEGER_KIND)
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message (FATAL_ERROR "Failed to find KIND of NATIVE INTEGER for Fortran")
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endif()
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if (NOT PAC_FORTRAN_NATIVE_REAL_KIND)
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message (FATAL_ERROR "Failed to find KIND of NATIVE REAL for Fortran")
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endif()
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if (NOT PAC_FORTRAN_NATIVE_DOUBLE_KIND)
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message (FATAL_ERROR "Failed to find KIND of NATIVE DOUBLE for Fortran")
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endif()
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set(FORTRAN_SIZEOF_LONG_DOUBLE ${${HDF_PREFIX}_SIZEOF_LONG_DOUBLE})
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#set(H5_SIZEOF_LONG_DOUBLE ${${HDF_PREFIX}_SIZEOF_LONG_DOUBLE})
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# remove the invalid kind from the list
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if(NOT(${SIZEOF___FLOAT128} EQUAL 0))
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if(NOT(${SIZEOF___FLOAT128} EQUAL ${max_real_fortran_sizeof})
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AND NOT(${FORTRAN_SIZEOF_LONG_DOUBLE} EQUAL ${max_real_fortran_sizeof})
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# account for the fact that the C compiler can have 16-byte __float128 and the fortran compiler only has 8-byte doubles,
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# so we don't want to remove the 8-byte fortran doubles.
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AND NOT(${PAC_FORTRAN_NATIVE_DOUBLE_SIZEOF} EQUAL ${max_real_fortran_sizeof}))
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message(WARNING "
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Fortran REAL(KIND=${max_real_fortran_kind}) is $max_real_fortran_sizeof Bytes, but no corresponding C float type exists of that size
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!!! Fortran interfaces will not be generated for REAL(KIND=${max_real_fortran_kind}) !!!")
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string(REGEX REPLACE ",[0-9]+}" "}" PAC_FC_ALL_REAL_KINDS ${PAC_FC_ALL_REAL_KINDS})
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string(REGEX REPLACE ",[0-9]+}" "}" PAC_FC_ALL_REAL_KINDS_SIZEOF ${PAC_FC_ALL_REAL_KINDS_SIZEOF})
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MATH (EXPR NUM_RKIND "${NUM_RKIND} - 1")
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endif()
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endif(NOT(${SIZEOF___FLOAT128} EQUAL 0))
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set(H5CONFIG_F_NUM_RKIND "INTEGER, PARAMETER :: num_rkinds = ${NUM_RKIND}")
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string(REGEX REPLACE "{" "" OUT_VAR ${PAC_FC_ALL_REAL_KINDS})
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string(REGEX REPLACE "}" "" OUT_VAR ${OUT_VAR})
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set(H5CONFIG_F_RKIND "INTEGER, DIMENSION(1:num_rkinds) :: rkind = (/${OUT_VAR}/)")
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string(REGEX REPLACE "{" "" OUT_VAR ${PAC_FC_ALL_REAL_KINDS_SIZEOF})
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string(REGEX REPLACE "}" "" OUT_VAR ${OUT_VAR})
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set(H5CONFIG_F_RKIND_SIZEOF "INTEGER, DIMENSION(1:num_rkinds) :: rkind_sizeof = (/${OUT_VAR}/)")
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ENABLE_LANGUAGE (C)
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#-----------------------------------------------------------------------------
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# The provided CMake C macros don't provide a general compile/run function
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# so this one is used.
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#-----------------------------------------------------------------------------
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MACRO (C_RUN FUNCTION CODE RETURN)
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message (STATUS "Detecting C ${FUNCTION}")
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if (CMAKE_REQUIRED_LIBRARIES)
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set (CHECK_FUNCTION_EXISTS_ADD_LIBRARIES
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"-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}")
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else (CMAKE_REQUIRED_LIBRARIES)
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set (CHECK_FUNCTION_EXISTS_ADD_LIBRARIES)
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endif (CMAKE_REQUIRED_LIBRARIES)
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file (WRITE
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${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testCCompiler1.c
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${CODE}
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)
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TRY_RUN (RUN_RESULT_VAR COMPILE_RESULT_VAR
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${CMAKE_BINARY_DIR}
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${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testCCompiler1.c
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CMAKE_FLAGS "${CHECK_FUNCTION_EXISTS_ADD_LIBRARIES}"
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RUN_OUTPUT_VARIABLE OUTPUT
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)
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set(${RETURN} ${OUTPUT})
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#message ( "* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ")
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#message ( "Test COMPILE_RESULT_VAR ${COMPILE_RESULT_VAR} ")
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#message ( "* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ")
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#message ( "Test RUN_RESULT_VAR ${RUN_RESULT_VAR} ")
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#message ( "* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ")
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if (${COMPILE_RESULT_VAR})
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if (${RUN_RESULT_VAR} MATCHES 1)
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set (${RUN_RESULT_VAR} 1 CACHE INTERNAL "Have C function ${FUNCTION}")
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message (STATUS "Testing C ${FUNCTION} - OK")
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file (APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
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"Determining if the C ${FUNCTION} exists passed with the following output:\n"
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"${OUTPUT}\n\n"
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)
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else ()
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message (STATUS "Testing C ${FUNCTION} - Fail")
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set (${RUN_RESULT_VAR} 0 CACHE INTERNAL "Have C function ${FUNCTION}")
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file (APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
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"Determining if the C ${FUNCTION} exists failed with the following output:\n"
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"${OUTPUT}\n\n")
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endif ()
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else ()
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message (FATAL_ERROR "Compilation of C ${FUNCTION} - Failed")
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endif()
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ENDMACRO (C_RUN)
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set(PROG_SRC
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"
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#include <float.h>
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#include <stdio.h>
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#define CHECK_FLOAT128 ${SIZEOF___FLOAT128}
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#if CHECK_FLOAT128!=0
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# if ${HAVE_QUADMATH}!=0
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#include <quadmath.h>
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# endif
|
|
# ifdef FLT128_DIG
|
|
#define C_FLT128_DIG FLT128_DIG
|
|
# else
|
|
#define C_FLT128_DIG 0
|
|
# endif
|
|
#else
|
|
#define C_FLT128_DIG 0
|
|
#endif
|
|
#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
|
|
#define C_LDBL_DIG DECIMAL_DIG
|
|
#else
|
|
#define C_LDBL_DIG LDBL_DIG
|
|
#endif
|
|
int main() {
|
|
printf(\"%d\\\\n%d\\\\n\", C_LDBL_DIG, C_FLT128_DIG)\\\;
|
|
return 1\\\;
|
|
}
|
|
"
|
|
)
|
|
|
|
C_RUN("maximum decimal precision for C" ${PROG_SRC} PROG_OUTPUT)
|
|
|
|
# dnl The output from the above program will be:
|
|
# dnl -- LINE 1 -- long double decimal precision
|
|
# dnl -- LINE 2 -- __float128 decimal precision
|
|
|
|
# Convert the string to a list of strings by replacing the carriage return with a semicolon
|
|
string(REGEX REPLACE "\n" ";" PROG_OUTPUT "${PROG_OUTPUT}")
|
|
|
|
list(GET PROG_OUTPUT 0 LDBL_DIG)
|
|
list(GET PROG_OUTPUT 1 FLT128_DIG)
|
|
|
|
if(SIZEOF___FLOAT128 EQUAL 0 OR FLT128_DIG EQUAL 0)
|
|
SET(H5_HAVE_FLOAT128 0)
|
|
SET(SIZEOF___FLOAT128 0)
|
|
set(H5_PAC_C_MAX_REAL_PRECISION ${LDBL_DIG})
|
|
else ()
|
|
set(H5_PAC_C_MAX_REAL_PRECISION ${FLT128_DIG})
|
|
endif()
|
|
|
|
|
|
# Setting definition if there is a 16 byte fortran integer
|
|
string(FIND ${PAC_FC_ALL_INTEGER_KINDS_SIZEOF} "16" pos)
|
|
if(${pos} EQUAL -1)
|
|
set(HAVE_Fortran_INTEGER_SIZEOF_16 0)
|
|
else ()
|
|
set(HAVE_Fortran_INTEGER_SIZEOF_16 1)
|
|
endif ()
|