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1 # |
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2 # Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. |
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3 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 # |
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5 # This code is free software; you can redistribute it and/or modify it |
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6 # under the terms of the GNU General Public License version 2 only, as |
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7 # published by the Free Software Foundation. Oracle designates this |
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8 # particular file as subject to the "Classpath" exception as provided |
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9 # by Oracle in the LICENSE file that accompanied this code. |
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10 # |
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11 # This code is distributed in the hope that it will be useful, but WITHOUT |
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12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 # version 2 for more details (a copy is included in the LICENSE file that |
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15 # accompanied this code). |
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16 # |
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17 # You should have received a copy of the GNU General Public License version |
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18 # 2 along with this work; if not, write to the Free Software Foundation, |
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19 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 # |
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21 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 # or visit www.oracle.com if you need additional information or have any |
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23 # questions. |
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24 # |
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25 |
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26 ################################################################################ |
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27 # Setup libffi (Foreign Function Interface) |
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28 ################################################################################ |
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29 AC_DEFUN_ONCE([LIB_SETUP_LIBFFI], |
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30 [ |
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31 AC_ARG_WITH(libffi, [AS_HELP_STRING([--with-libffi], |
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32 [specify prefix directory for the libffi package |
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33 (expecting the libraries under PATH/lib and the headers under PATH/include)])]) |
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34 AC_ARG_WITH(libffi-include, [AS_HELP_STRING([--with-libffi-include], |
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35 [specify directory for the libffi include files])]) |
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36 AC_ARG_WITH(libffi-lib, [AS_HELP_STRING([--with-libffi-lib], |
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37 [specify directory for the libffi library])]) |
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38 AC_ARG_ENABLE(libffi-bundling, [AS_HELP_STRING([--enable-libffi-bundling], |
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39 [enable bundling of libffi.so to make the built JDK runnable on more systems])]) |
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40 |
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41 if test "x$NEEDS_LIB_FFI" = xfalse; then |
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42 if (test "x${with_libffi}" != x && test "x${with_libffi}" != xno) || \ |
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43 (test "x${with_libffi_include}" != x && test "x${with_libffi_include}" != xno) || \ |
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44 (test "x${with_libffi_lib}" != x && test "x${with_libffi_lib}" != xno); then |
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45 AC_MSG_WARN([[libffi not used, so --with-libffi[-*] is ignored]]) |
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46 fi |
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47 LIBFFI_CFLAGS= |
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48 LIBFFI_LIBS= |
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49 else |
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50 LIBFFI_FOUND=no |
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51 |
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52 if test "x${with_libffi}" = xno || test "x${with_libffi_include}" = xno || test "x${with_libffi_lib}" = xno; then |
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53 AC_MSG_ERROR([It is not possible to disable the use of libffi. Remove the --without-libffi option.]) |
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54 fi |
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55 |
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56 if test "x${with_libffi}" != x; then |
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57 LIBFFI_LIB_PATH="${with_libffi}/lib" |
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58 LIBFFI_LIBS="-L${with_libffi}/lib -lffi" |
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59 LIBFFI_CFLAGS="-I${with_libffi}/include" |
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60 LIBFFI_FOUND=yes |
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61 fi |
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62 if test "x${with_libffi_include}" != x; then |
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63 LIBFFI_CFLAGS="-I${with_libffi_include}" |
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64 LIBFFI_FOUND=yes |
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65 fi |
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66 if test "x${with_libffi_lib}" != x; then |
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67 LIBFFI_LIB_PATH="${with_libffi_lib}" |
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68 LIBFFI_LIBS="-L${with_libffi_lib} -lffi" |
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69 LIBFFI_FOUND=yes |
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70 fi |
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71 # Do not try pkg-config if we have a sysroot set. |
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72 if test "x$SYSROOT" = x; then |
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73 if test "x$LIBFFI_FOUND" = xno; then |
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74 # Figure out LIBFFI_CFLAGS and LIBFFI_LIBS |
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75 PKG_CHECK_MODULES([LIBFFI], [libffi], [LIBFFI_FOUND=yes], [LIBFFI_FOUND=no]) |
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76 fi |
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77 fi |
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78 if test "x$LIBFFI_FOUND" = xno; then |
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79 AC_CHECK_HEADERS([ffi.h], |
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80 [ |
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81 LIBFFI_FOUND=yes |
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82 LIBFFI_CFLAGS= |
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83 LIBFFI_LIBS=-lffi |
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84 ], |
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85 [LIBFFI_FOUND=no] |
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86 ) |
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87 fi |
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88 if test "x$LIBFFI_FOUND" = xno; then |
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89 HELP_MSG_MISSING_DEPENDENCY([ffi]) |
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90 AC_MSG_ERROR([Could not find libffi! $HELP_MSG]) |
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91 fi |
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92 |
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93 AC_MSG_CHECKING([if libffi works]) |
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94 AC_LANG_PUSH(C) |
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95 OLD_CFLAGS="$CFLAGS" |
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96 CFLAGS="$CFLAGS $LIBFFI_CFLAGS" |
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97 OLD_LIBS="$LIBS" |
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98 LIBS="$LIBS $LIBFFI_LIBS" |
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99 AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <ffi.h>], |
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100 [ |
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101 ffi_call(NULL, NULL, NULL, NULL); |
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102 return 0; |
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103 ])], |
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104 [LIBFFI_WORKS=yes], |
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105 [LIBFFI_WORKS=no] |
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106 ) |
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107 CFLAGS="$OLD_CFLAGS" |
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108 LIBS="$OLD_LIBS" |
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109 AC_LANG_POP(C) |
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110 AC_MSG_RESULT([$LIBFFI_WORKS]) |
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111 |
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112 if test "x$LIBFFI_WORKS" = xno; then |
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113 HELP_MSG_MISSING_DEPENDENCY([ffi]) |
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114 AC_MSG_ERROR([Found libffi but could not link and compile with it. $HELP_MSG]) |
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115 fi |
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116 |
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117 AC_MSG_CHECKING([if libffi should be bundled]) |
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118 if test "x$enable_libffi_bundling" = "x"; then |
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119 AC_MSG_RESULT([no]) |
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120 ENABLE_LIBFFI_BUNDLING=false |
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121 elif test "x$enable_libffi_bundling" = "xno"; then |
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122 AC_MSG_RESULT([no, forced]) |
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123 ENABLE_LIBFFI_BUNDLING=false |
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124 elif test "x$enable_libffi_bundling" = "xyes"; then |
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125 AC_MSG_RESULT([yes, forced]) |
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126 ENABLE_LIBFFI_BUNDLING=true |
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127 else |
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128 AC_MSG_ERROR([Invalid value for --enable-libffi-bundling]) |
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129 fi |
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130 |
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131 # Find the libffi.so.X to bundle |
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132 if test "x${ENABLE_LIBFFI_BUNDLING}" = "xtrue"; then |
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133 AC_MSG_CHECKING([for libffi lib file location]) |
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134 if test "x${LIBFFI_LIB_PATH}" != x; then |
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135 if test -e ${LIBFFI_LIB_PATH}/libffi.so.?; then |
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136 LIBFFI_LIB_FILE="${LIBFFI_LIB_PATH}/libffi.so.?" |
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137 else |
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138 AC_MSG_ERROR([Could not locate libffi.so.? for bundling in ${LIBFFI_LIB_PATH}]) |
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139 fi |
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140 else |
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141 # If we don't have an explicit path, look in a few obvious places |
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142 if test "x${OPENJDK_TARGET_CPU}" = "xx86"; then |
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143 if test -e ${SYSROOT}/usr/lib/libffi.so.? ; then |
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144 LIBFFI_LIB_FILE="${SYSROOT}/usr/lib/libffi.so.?" |
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145 elif test -e ${SYSROOT}/usr/lib/i386-linux-gnu/libffi.so.? ; then |
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146 LIBFFI_LIB_FILE="${SYSROOT}/usr/lib/i386-linux-gnu/libffi.so.?" |
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147 else |
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148 AC_MSG_ERROR([Could not locate libffi.so.? for bundling]) |
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149 fi |
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150 elif test "x${OPENJDK_TARGET_CPU}" = "xx86_64"; then |
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151 if test -e ${SYSROOT}/usr/lib64/libffi.so.? ; then |
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152 LIBFFI_LIB_FILE="${SYSROOT}/usr/lib64/libffi.so.?" |
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153 elif test -e ${SYSROOT}/usr/lib/x86_64-linux-gnu/libffi.so.? ; then |
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154 LIBFFI_LIB_FILE="${SYSROOT}/usr/lib/x86_64-linux-gnu/libffi.so.?" |
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155 else |
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156 AC_MSG_ERROR([Could not locate libffi.so.? for bundling]) |
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157 fi |
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158 else |
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159 # Fallback on the default /usr/lib dir |
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160 if test -e ${SYSROOT}/usr/lib/libffi.so.? ; then |
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161 LIBFFI_LIB_FILE="${SYSROOT}/usr/lib/libffi.so.?" |
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162 else |
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163 AC_MSG_ERROR([Could not locate libffi.so.? for bundling]) |
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164 fi |
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165 fi |
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166 fi |
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167 # Make sure the wildcard is evaluated |
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168 LIBFFI_LIB_FILE="$(ls ${LIBFFI_LIB_FILE})" |
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169 AC_MSG_RESULT([${LIBFFI_LIB_FILE}]) |
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170 fi |
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171 fi |
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172 |
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173 AC_SUBST(LIBFFI_CFLAGS) |
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174 AC_SUBST(LIBFFI_LIBS) |
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175 AC_SUBST(ENABLE_LIBFFI_BUNDLING) |
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176 AC_SUBST(LIBFFI_LIB_FILE) |
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177 ]) |