1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
#
# 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
# 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! $HELP_MSG])
fi
AC_MSG_CHECKING([if libffi works])
AC_LANG_PUSH(C)
OLD_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $LIBFFI_CFLAGS"
OLD_LIBS="$LIBS"
LIBS="$LIBS $LIBFFI_LIBS"
AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <ffi.h>],
[
ffi_call(NULL, NULL, NULL, NULL);
return 0;
])],
[LIBFFI_WORKS=yes],
[LIBFFI_WORKS=no]
)
CFLAGS="$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)
])
|
