make/autoconf/lib-ffi.m4 - openjdk/jdk25u - Git at Google


            
            #

            
            # Copyright (c) 2015, 2023, Oracle and/or its affiliates. All rights reserved.

            
            # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

            
            #

            
            # This code is free software; you can redistribute it and/or modify it

            
            # under the terms of the GNU General Public License version 2 only, as

            
            # published by the Free Software Foundation.  Oracle designates this

            
            # particular file as subject to the "Classpath" exception as provided

            
            # by Oracle in the LICENSE file that accompanied this code.

            
            #

            
            # This code is distributed in the hope that it will be useful, but WITHOUT

            
            # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

            
            # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

            
            # version 2 for more details (a copy is included in the LICENSE file that

            
            # accompanied this code).

            
            #

            
            # You should have received a copy of the GNU General Public License version

            
            # 2 along with this work; if not, write to the Free Software Foundation,

            
            # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

            
            #

            
            # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

            
            # or visit www.oracle.com if you need additional information or have any

            
            # questions.

            
            #


            ################################################################################

            
            # Setup libffi (Foreign Function Interface)

            
            ################################################################################

            
            AC_DEFUN_ONCE([LIB_SETUP_LIBFFI],

            
            [

            
              UTIL_ARG_ENABLE(NAME: libffi-bundling, DEFAULT: false,

            
                  RESULT: ENABLE_LIBFFI_BUNDLING,

            
                  DESC: [enable bundling of libffi.so to make the built JDK runnable on more systems])


              AC_ARG_WITH(libffi, [AS_HELP_STRING([--with-libffi],

            
                  [specify prefix directory for the libffi package

            
                  (expecting the libraries under PATH/lib and the headers under PATH/include)])])

            
              AC_ARG_WITH(libffi-include, [AS_HELP_STRING([--with-libffi-include],

            
                  [specify directory for the libffi include files])])

            
              AC_ARG_WITH(libffi-lib, [AS_HELP_STRING([--with-libffi-lib],

            
                  [specify directory for the libffi library])])


              if test "x$NEEDS_LIB_FFI" = xfalse; then

            
                if (test "x${with_libffi}" != x && test "x${with_libffi}" != xno) || \

            
                    (test "x${with_libffi_include}" != x && test "x${with_libffi_include}" != xno) || \

            
                    (test "x${with_libffi_lib}" != x && test "x${with_libffi_lib}" != xno); then

            
                  AC_MSG_WARN([[libffi not used, so --with-libffi[-*] is ignored]])

            
                fi

            
                LIBFFI_CFLAGS=

            
                LIBFFI_LIBS=

            
              else

            
                LIBFFI_FOUND=no


                if test "x${with_libffi}" = xno || test "x${with_libffi_include}" = xno || test "x${with_libffi_lib}" = xno; then

            
                  AC_MSG_ERROR([It is not possible to disable the use of libffi. Remove the --without-libffi option.])

            
                fi


                if test "x${with_libffi}" != x; then

            
                  LIBFFI_LIB_PATH="${with_libffi}/lib"

            
                  if test "x${OPENJDK_TARGET_OS}" != "xwindows"; then

            
                    LIBFFI_LIBS="-L${with_libffi}/lib -lffi"

            
                  else

            
                    LIBFFI_LIBS="${with_libffi}/lib/libffi.lib"

            
                  fi

            
                  LIBFFI_CFLAGS="-I${with_libffi}/include"

            
                  LIBFFI_FOUND=yes

            
                fi

            
                if test "x${with_libffi_include}" != x; then

            
                  LIBFFI_CFLAGS="-I${with_libffi_include}"

            
                  LIBFFI_FOUND=yes

            
                fi

            
                if test "x${with_libffi_lib}" != x; then

            
                  LIBFFI_LIB_PATH="${with_libffi_lib}"

            
                  if test "x${OPENJDK_TARGET_OS}" != "xwindows"; then

            
                    LIBFFI_LIBS="-L${with_libffi_lib} -lffi"

            
                  else

            
                    LIBFFI_LIBS="${with_libffi_lib}/libffi.lib"

            
                  fi

            
                  LIBFFI_FOUND=yes

            
                fi

            
                # Do not try pkg-config if we have a sysroot set.

            
                if test "x$SYSROOT" = x; then

            
                  if test "x$LIBFFI_FOUND" = xno; then

            
                    # Figure out LIBFFI_CFLAGS and LIBFFI_LIBS

            
                    PKG_CHECK_MODULES([LIBFFI], [libffi], [LIBFFI_FOUND=yes], [LIBFFI_FOUND=no])

            
                  fi

            
                fi

            
                if test "x$LIBFFI_FOUND" = xno; then

            
                  AC_CHECK_HEADERS([ffi.h],

            
                      [

            
                        LIBFFI_FOUND=yes

            
                        LIBFFI_CFLAGS=

            
                        LIBFFI_LIBS=-lffi

            
                      ],

            
                      [LIBFFI_FOUND=no]

            
                  )

            
                fi

            
                # on macos we need a special case for system's libffi as

            
                # headers are located only in sdk in $SYSROOT and in ffi subfolder

            
                if test "x$LIBFFI_FOUND" = xno; then

            
                  if test "x$SYSROOT" != "x"; then

            
                    AC_CHECK_HEADER([$SYSROOT/usr/include/ffi/ffi.h],

            
                        [

            
                          LIBFFI_FOUND=yes

            
                          LIBFFI_CFLAGS="-I${SYSROOT}/usr/include/ffi"

            
                          LIBFFI_LIBS=-lffi

            
                        ],

            
                        [LIBFFI_FOUND=no]

            
                    )

            
                  fi

            
                fi

            
                if test "x$LIBFFI_FOUND" = xno; then

            
                  HELP_MSG_MISSING_DEPENDENCY([ffi])

            
                  AC_MSG_ERROR([Could not find libffi! $HELP_MSG])

            
                fi


                AC_LANG_PUSH(C)

            
                OLD_CFLAGS="$CFLAGS"

            
                CFLAGS="$CFLAGS $LIBFFI_CFLAGS"

            
                OLD_LIBS="$LIBS"

            
                LIBS="$LIBS $LIBFFI_LIBS"


                AC_MSG_CHECKING([if libffi works])

            
                AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <ffi.h>],

            
                    [

            
                      ffi_call(NULL, NULL, NULL, NULL);

            
                      return 0;

            
                    ])],

            
                    [LIBFFI_WORKS=yes],

            
                    [LIBFFI_WORKS=no]

            
                )

            
                AC_MSG_RESULT([$LIBFFI_WORKS])


                if test "x$LIBFFI_WORKS" = xno; then

            
                  HELP_MSG_MISSING_DEPENDENCY([ffi])

            
                  AC_MSG_ERROR([Found libffi but could not link and compile with it. $HELP_MSG])

            
                fi


                # Check if FFI_GO_CLOSURES is properly defined. On some distributions, notably MacOS AArch64,

            
                # ffitarget.h (included from ffi.h) does not explicitly define FFI_GO_CLOSURES. This makes the

            
                # further include of ffi.h trigger the "FFI_GO_CLOSURES is undefined" warning, which fails

            
                # the build when warnings are fatal.

            
                AC_MSG_CHECKING([for FFI_GO_CLOSURES definition])

            
                AC_COMPILE_IFELSE([AC_LANG_PROGRAM([

            
                  #include <ffi.h>

            
                  #ifndef FFI_GO_CLOSURES

            
                  #error "FFI_GO_CLOSURES is not defined"

            
                  #endif

            
                  ][])],

            
                  [

            
                    AC_MSG_RESULT([yes])

            
                  ],

            
                  [

            
                    AC_MSG_RESULT([no, defining])

            
                    LIBFFI_CFLAGS="$LIBFFI_CFLAGS -DFFI_GO_CLOSURES=0"

            
                  ]

            
                )


                CFLAGS="$OLD_CFLAGS"

            
                LIBS="$OLD_LIBS"

            
                AC_LANG_POP(C)


                # Find the libffi.so.X to bundle

            
                if test "x${ENABLE_LIBFFI_BUNDLING}" = "xtrue"; then

            
                  if test "x${OPENJDK_TARGET_OS}" = "xmacosx"; then

            
                    LIBFFI_LIB_FILE_NAME=libffi.?.dylib

            
                  elif test "x${OPENJDK_TARGET_OS}" = "xwindows"; then

            
                    LIBFFI_LIB_FILE_NAME=libffi.dll

            
                  else

            
                    LIBFFI_LIB_FILE_NAME=libffi.so.?

            
                  fi


                  AC_MSG_CHECKING([for libffi lib file location])

            
                  if test "x${LIBFFI_LIB_PATH}" != x; then

            
                    if test -e ${LIBFFI_LIB_PATH}/${LIBFFI_LIB_FILE_NAME}; then

            
                      LIBFFI_LIB_FILE="${LIBFFI_LIB_PATH}/${LIBFFI_LIB_FILE_NAME}"

            
                    else

            
                      AC_MSG_ERROR([Could not locate ${LIBFFI_LIB_FILE_NAME} for bundling in ${LIBFFI_LIB_PATH}])

            
                    fi

            
                  else

            
                    # If we don't have an explicit path, look in a few obvious places

            
                    if test "x${OPENJDK_TARGET_CPU}" = "xx86"; then

            
                      if test -e ${SYSROOT}/usr/lib/${LIBFFI_LIB_FILE_NAME} ; then

            
                        LIBFFI_LIB_FILE="${SYSROOT}/usr/lib/${LIBFFI_LIB_FILE_NAME}"

            
                      elif test -e ${SYSROOT}/usr/lib/i386-linux-gnu/${LIBFFI_LIB_FILE_NAME} ; then

            
                        LIBFFI_LIB_FILE="${SYSROOT}/usr/lib/i386-linux-gnu/${LIBFFI_LIB_FILE_NAME}"

            
                      else

            
                        AC_MSG_ERROR([Could not locate ${LIBFFI_LIB_FILE_NAME} for bundling])

            
                      fi

            
                    elif test "x${OPENJDK_TARGET_CPU}" = "xx86_64" || test "x${OPENJDK_TARGET_CPU}" = "xaarch64"; then

            
                      if test -e ${SYSROOT}/usr/lib64/${LIBFFI_LIB_FILE_NAME} ; then

            
                        LIBFFI_LIB_FILE="${SYSROOT}/usr/lib64/${LIBFFI_LIB_FILE_NAME}"

            
                      elif test -e ${SYSROOT}/usr/lib/x86_64-linux-gnu/${LIBFFI_LIB_FILE_NAME} ; then

            
                        LIBFFI_LIB_FILE="${SYSROOT}/usr/lib/x86_64-linux-gnu/${LIBFFI_LIB_FILE_NAME}"

            
                      else

            
                        AC_MSG_ERROR([Could not locate ${LIBFFI_LIB_FILE_NAME} for bundling])

            
                      fi

            
                    else

            
                      # Fallback on the default /usr/lib dir

            
                      if test -e ${SYSROOT}/usr/lib/${LIBFFI_LIB_FILE_NAME} ; then

            
                        LIBFFI_LIB_FILE="${SYSROOT}/usr/lib/${LIBFFI_LIB_FILE_NAME}"

            
                      else

            
                        AC_MSG_ERROR([Could not locate ${LIBFFI_LIB_FILE_NAME} for bundling])

            
                      fi

            
                    fi

            
                  fi

            
                  # Make sure the wildcard is evaluated

            
                  LIBFFI_LIB_FILE="$(ls ${LIBFFI_LIB_FILE})"

            
                  AC_MSG_RESULT([${LIBFFI_LIB_FILE}])

            
                fi

            
              fi


              AC_SUBST(LIBFFI_CFLAGS)

            
              AC_SUBST(LIBFFI_LIBS)

            
              AC_SUBST(ENABLE_LIBFFI_BUNDLING)

            
              AC_SUBST(LIBFFI_LIB_FILE)

            
            ])
	#
	# Copyright (c) 2015, 2023, Oracle and/or its affiliates. All rights reserved.
	# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	#
	# This code is free software; you can redistribute it and/or modify it
	# under the terms of the GNU General Public License version 2 only, as
	# published by the Free Software Foundation. Oracle designates this
	# particular file as subject to the "Classpath" exception as provided
	# by Oracle in the LICENSE file that accompanied this code.
	#
	# This code is distributed in the hope that it will be useful, but WITHOUT
	# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	# version 2 for more details (a copy is included in the LICENSE file that
	# accompanied this code).
	#
	# You should have received a copy of the GNU General Public License version
	# 2 along with this work; if not, write to the Free Software Foundation,
	# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	#
	# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	# or visit www.oracle.com if you need additional information or have any
	# questions.
	#

	################################################################################
	# Setup libffi (Foreign Function Interface)
	################################################################################
	AC_DEFUN_ONCE([LIB_SETUP_LIBFFI],
	[
	UTIL_ARG_ENABLE(NAME: libffi-bundling, DEFAULT: false,
	RESULT: ENABLE_LIBFFI_BUNDLING,
	DESC: [enable bundling of libffi.so to make the built JDK runnable on more systems])

	AC_ARG_WITH(libffi, [AS_HELP_STRING([--with-libffi],
	[specify prefix directory for the libffi package
	(expecting the libraries under PATH/lib and the headers under PATH/include)])])
	AC_ARG_WITH(libffi-include, [AS_HELP_STRING([--with-libffi-include],
	[specify directory for the libffi include files])])
	AC_ARG_WITH(libffi-lib, [AS_HELP_STRING([--with-libffi-lib],
	[specify directory for the libffi library])])

	if test "x$NEEDS_LIB_FFI" = xfalse; then
	if (test "x${with_libffi}" != x && test "x${with_libffi}" != xno) \|\| \
	(test "x${with_libffi_include}" != x && test "x${with_libffi_include}" != xno) \|\| \
	(test "x${with_libffi_lib}" != x && test "x${with_libffi_lib}" != xno); then
	AC_MSG_WARN([[libffi not used, so --with-libffi[-*] is ignored]])
	fi
	LIBFFI_CFLAGS=
	LIBFFI_LIBS=
	else
	LIBFFI_FOUND=no

	if test "x${with_libffi}" = xno \|\| test "x${with_libffi_include}" = xno \|\| test "x${with_libffi_lib}" = xno; then
	AC_MSG_ERROR([It is not possible to disable the use of libffi. Remove the --without-libffi option.])
	fi

	if test "x${with_libffi}" != x; then
	LIBFFI_LIB_PATH="${with_libffi}/lib"
	if test "x${OPENJDK_TARGET_OS}" != "xwindows"; then
	LIBFFI_LIBS="-L${with_libffi}/lib -lffi"
	else
	LIBFFI_LIBS="${with_libffi}/lib/libffi.lib"
	fi
	LIBFFI_CFLAGS="-I${with_libffi}/include"
	LIBFFI_FOUND=yes
	fi
	if test "x${with_libffi_include}" != x; then
	LIBFFI_CFLAGS="-I${with_libffi_include}"
	LIBFFI_FOUND=yes
	fi
	if test "x${with_libffi_lib}" != x; then
	LIBFFI_LIB_PATH="${with_libffi_lib}"
	if test "x${OPENJDK_TARGET_OS}" != "xwindows"; then
	LIBFFI_LIBS="-L${with_libffi_lib} -lffi"
	else
	LIBFFI_LIBS="${with_libffi_lib}/libffi.lib"
	fi
	LIBFFI_FOUND=yes
	fi
	# Do not try pkg-config if we have a sysroot set.
	if test "x$SYSROOT" = x; then
	if test "x$LIBFFI_FOUND" = xno; then
	# Figure out LIBFFI_CFLAGS and LIBFFI_LIBS
	PKG_CHECK_MODULES([LIBFFI], [libffi], [LIBFFI_FOUND=yes], [LIBFFI_FOUND=no])
	fi
	fi
	if test "x$LIBFFI_FOUND" = xno; then
	AC_CHECK_HEADERS([ffi.h],
	[
	LIBFFI_FOUND=yes
	LIBFFI_CFLAGS=
	LIBFFI_LIBS=-lffi
	],
	[LIBFFI_FOUND=no]
	)
	fi
	# on macos we need a special case for system's libffi as
	# headers are located only in sdk in $SYSROOT and in ffi subfolder
	if test "x$LIBFFI_FOUND" = xno; then
	if test "x$SYSROOT" != "x"; then
	AC_CHECK_HEADER([$SYSROOT/usr/include/ffi/ffi.h],
	[
	LIBFFI_FOUND=yes
	LIBFFI_CFLAGS="-I${SYSROOT}/usr/include/ffi"
	LIBFFI_LIBS=-lffi
	],
	[LIBFFI_FOUND=no]
	)
	fi
	fi
	if test "x$LIBFFI_FOUND" = xno; then
	HELP_MSG_MISSING_DEPENDENCY([ffi])
	AC_MSG_ERROR([Could not find libffi! $HELP_MSG])
	fi

	AC_LANG_PUSH(C)
	OLD_CFLAGS="$CFLAGS"
	CFLAGS="$CFLAGS $LIBFFI_CFLAGS"
	OLD_LIBS="$LIBS"
	LIBS="$LIBS $LIBFFI_LIBS"

	AC_MSG_CHECKING([if libffi works])
	AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <ffi.h>],
	[
	ffi_call(NULL, NULL, NULL, NULL);
	return 0;
	])],
	[LIBFFI_WORKS=yes],
	[LIBFFI_WORKS=no]
	)
	AC_MSG_RESULT([$LIBFFI_WORKS])

	if test "x$LIBFFI_WORKS" = xno; then
	HELP_MSG_MISSING_DEPENDENCY([ffi])
	AC_MSG_ERROR([Found libffi but could not link and compile with it. $HELP_MSG])
	fi

	# Check if FFI_GO_CLOSURES is properly defined. On some distributions, notably MacOS AArch64,
	# ffitarget.h (included from ffi.h) does not explicitly define FFI_GO_CLOSURES. This makes the
	# further include of ffi.h trigger the "FFI_GO_CLOSURES is undefined" warning, which fails
	# the build when warnings are fatal.
	AC_MSG_CHECKING([for FFI_GO_CLOSURES definition])
	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
	#include <ffi.h>
	#ifndef FFI_GO_CLOSURES
	#error "FFI_GO_CLOSURES is not defined"
	#endif
	][])],
	[
	AC_MSG_RESULT([yes])
	],
	[
	AC_MSG_RESULT([no, defining])
	LIBFFI_CFLAGS="$LIBFFI_CFLAGS -DFFI_GO_CLOSURES=0"
	]
	)

	CFLAGS="$OLD_CFLAGS"
	LIBS="$OLD_LIBS"
	AC_LANG_POP(C)

	# Find the libffi.so.X to bundle
	if test "x${ENABLE_LIBFFI_BUNDLING}" = "xtrue"; then
	if test "x${OPENJDK_TARGET_OS}" = "xmacosx"; then
	LIBFFI_LIB_FILE_NAME=libffi.?.dylib
	elif test "x${OPENJDK_TARGET_OS}" = "xwindows"; then
	LIBFFI_LIB_FILE_NAME=libffi.dll
	else
	LIBFFI_LIB_FILE_NAME=libffi.so.?
	fi

	AC_MSG_CHECKING([for libffi lib file location])
	if test "x${LIBFFI_LIB_PATH}" != x; then
	if test -e ${LIBFFI_LIB_PATH}/${LIBFFI_LIB_FILE_NAME}; then
	LIBFFI_LIB_FILE="${LIBFFI_LIB_PATH}/${LIBFFI_LIB_FILE_NAME}"
	else
	AC_MSG_ERROR([Could not locate ${LIBFFI_LIB_FILE_NAME} for bundling in ${LIBFFI_LIB_PATH}])
	fi
	else
	# If we don't have an explicit path, look in a few obvious places
	if test "x${OPENJDK_TARGET_CPU}" = "xx86"; then
	if test -e ${SYSROOT}/usr/lib/${LIBFFI_LIB_FILE_NAME} ; then
	LIBFFI_LIB_FILE="${SYSROOT}/usr/lib/${LIBFFI_LIB_FILE_NAME}"
	elif test -e ${SYSROOT}/usr/lib/i386-linux-gnu/${LIBFFI_LIB_FILE_NAME} ; then
	LIBFFI_LIB_FILE="${SYSROOT}/usr/lib/i386-linux-gnu/${LIBFFI_LIB_FILE_NAME}"
	else
	AC_MSG_ERROR([Could not locate ${LIBFFI_LIB_FILE_NAME} for bundling])
	fi
	elif test "x${OPENJDK_TARGET_CPU}" = "xx86_64" \|\| test "x${OPENJDK_TARGET_CPU}" = "xaarch64"; then
	if test -e ${SYSROOT}/usr/lib64/${LIBFFI_LIB_FILE_NAME} ; then
	LIBFFI_LIB_FILE="${SYSROOT}/usr/lib64/${LIBFFI_LIB_FILE_NAME}"
	elif test -e ${SYSROOT}/usr/lib/x86_64-linux-gnu/${LIBFFI_LIB_FILE_NAME} ; then
	LIBFFI_LIB_FILE="${SYSROOT}/usr/lib/x86_64-linux-gnu/${LIBFFI_LIB_FILE_NAME}"
	else
	AC_MSG_ERROR([Could not locate ${LIBFFI_LIB_FILE_NAME} for bundling])
	fi
	else
	# Fallback on the default /usr/lib dir
	if test -e ${SYSROOT}/usr/lib/${LIBFFI_LIB_FILE_NAME} ; then
	LIBFFI_LIB_FILE="${SYSROOT}/usr/lib/${LIBFFI_LIB_FILE_NAME}"
	else
	AC_MSG_ERROR([Could not locate ${LIBFFI_LIB_FILE_NAME} for bundling])
	fi
	fi
	fi
	# Make sure the wildcard is evaluated
	LIBFFI_LIB_FILE="$(ls ${LIBFFI_LIB_FILE})"
	AC_MSG_RESULT([${LIBFFI_LIB_FILE}])
	fi
	fi

	AC_SUBST(LIBFFI_CFLAGS)
	AC_SUBST(LIBFFI_LIBS)
	AC_SUBST(ENABLE_LIBFFI_BUNDLING)
	AC_SUBST(LIBFFI_LIB_FILE)
	])