# # Copyright (c) 2015, 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], [ 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])]) AC_ARG_ENABLE(libffi-bundling, [AS_HELP_STRING([--enable-libffi-bundling], [enable bundling of libffi.so to make the built JDK runnable on more systems])]) 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" LIBFFI_LIBS="-L${with_libffi}/lib -lffi" LIBFFI_CFLAGS="-I${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}" LIBFFI_LIBS="-L${with_libffi_lib} -lffi" LIBFFI_FOUND=yes fi # Do not try pkg-config if we have a sysroot set. if test "x$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 if test "x$LIBFFI_FOUND" = xno; then HELP_MSG_MISSING_DEPENDENCY([ffi]) AC_MSG_ERROR([Could not find libffi! $HELP_MSG]) fi AC_MSG_CHECKING([if libffi works]) AC_LANG_PUSH(C) OLD_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS $LIBFFI_CFLAGS" OLD_LIBS="$LIBS" LIBS="$LIBS $LIBFFI_LIBS" AC_LINK_IFELSE([AC_LANG_PROGRAM([#include ], [ ffi_call(NULL, NULL, NULL, NULL); return 0; ])], [LIBFFI_WORKS=yes], [LIBFFI_WORKS=no] ) CFLAGS="$OLD_CFLAGS" LIBS="$OLD_LIBS" AC_LANG_POP(C) AC_MSG_RESULT([$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. $HELP_MSG]) fi AC_MSG_CHECKING([if libffi should be bundled]) if test "x$enable_libffi_bundling" = "x"; then AC_MSG_RESULT([no]) ENABLE_LIBFFI_BUNDLING=false elif test "x$enable_libffi_bundling" = "xno"; then AC_MSG_RESULT([no, forced]) ENABLE_LIBFFI_BUNDLING=false elif test "x$enable_libffi_bundling" = "xyes"; then AC_MSG_RESULT([yes, forced]) ENABLE_LIBFFI_BUNDLING=true else AC_MSG_ERROR([Invalid value for --enable-libffi-bundling]) fi # Find the libffi.so.X to bundle if test "x${ENABLE_LIBFFI_BUNDLING}" = "xtrue"; then AC_MSG_CHECKING([for libffi lib file location]) if test "x${LIBFFI_LIB_PATH}" != x; then if test -e ${LIBFFI_LIB_PATH}/libffi.so.?; then LIBFFI_LIB_FILE="${LIBFFI_LIB_PATH}/libffi.so.?" else AC_MSG_ERROR([Could not locate libffi.so.? 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 ${SYSROOT}/usr/lib/libffi.so.? ; then LIBFFI_LIB_FILE="${SYSROOT}/usr/lib/libffi.so.?" elif test -e ${SYSROOT}/usr/lib/i386-linux-gnu/libffi.so.? ; then LIBFFI_LIB_FILE="${SYSROOT}/usr/lib/i386-linux-gnu/libffi.so.?" else AC_MSG_ERROR([Could not locate libffi.so.? for bundling]) fi elif test "x${OPENJDK_TARGET_CPU}" = "xx86_64"; then if test -e ${SYSROOT}/usr/lib64/libffi.so.? ; then LIBFFI_LIB_FILE="${SYSROOT}/usr/lib64/libffi.so.?" elif test -e ${SYSROOT}/usr/lib/x86_64-linux-gnu/libffi.so.? ; then LIBFFI_LIB_FILE="${SYSROOT}/usr/lib/x86_64-linux-gnu/libffi.so.?" else AC_MSG_ERROR([Could not locate libffi.so.? for bundling]) fi else # Fallback on the default /usr/lib dir if test -e ${SYSROOT}/usr/lib/libffi.so.? ; then LIBFFI_LIB_FILE="${SYSROOT}/usr/lib/libffi.so.?" else AC_MSG_ERROR([Could not locate libffi.so.? 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) ])