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
|
#!/bin/sh
#
# %CopyrightBegin%
#
# Copyright Ericsson AB 2010. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# %CopyrightEnd%
#
# Author: Rickard Green
#
target=
build_otp=
erl_top=
force=no
while [ $# -gt 0 ]; do
case "$1" in
-target)
shift
test $# -gt 0 || { echo "$0: Missing target" 1>&2; exit 1; }
target="$1";;
-otp)
shift
test $# -gt 0 || { echo "$0: Missing otp release" 1>&2; exit 1; }
build_otp="$1";;
-erl_top)
shift
test $# -gt 0 || { echo "$0: Missing erl top" 1>&2; exit 1; }
erl_top="$1";;
-force)
shift
test $# -gt 0 || { echo "$0: Missing force value" 1>&2; exit 1; }
force=$1;;
*)
echo "$0: Bad argument: $1" 1>&2
exit 1;;
esac
shift
done
test "X$target" != "X" || { echo "$0: Missing target" 1>&2; exit 1; }
test "X$build_otp" != "X" || { echo "$0: Missing otp release" 1>&2; exit 1; }
test "X$erl_top" != "X" || { echo "$0: Missing erl top" 1>&2; exit 1; }
test "X$force" != "X" || { echo "$0: Missing force value" 1>&2; exit 1; }
cd $erl_top
cat > cross_check_erl.erl <<\EOF
%
% Copyright Ericsson AB 2010. All Rights Reserved.
%
% Licensed under the Apache License, Version 2.0 (the "License");
% you may not use this file except in compliance with the License.
% You may obtain a copy of the License at
%
% http://www.apache.org/licenses/LICENSE-2.0
%
% Unless required by applicable law or agreed to in writing, software
% distributed under the License is distributed on an "AS IS" BASIS,
% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
% See the License for the specific language governing permissions and
% limitations under the License.
%
-module(cross_check_erl).
-export([start/0]).
start() ->
OTP = case catch erlang:system_info(otp_release) of
{'EXIT', _} -> "OTP";
Rel -> "OTP-" ++ Rel
end,
io:format("~s~n", [OTP]),
init:stop().
EOF
erlc cross_check_erl.erl 2>/dev/null \
&& used_otp=`erl -noshell -noinput -pa . -run cross_check_erl 2>/dev/null`
res=$?
rm -f cross_check_erl.erl cross_check_erl.beam
test $res -eq 0 || {
cat 1>&2 <<EOF
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* ERROR: No usable Erlang/OTP system for the build machine found! Cannot
* cross compile without such a system.
*
* Either build a bootstrap system for the build machine, or provide
* an Erlang/$build_otp system in the \$PATH, and try again. For more
* information on cross compiling Erlang/$build_otp, see the
* \$ERL_TOP/xcomp/README file.
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
EOF
exit 1
}
test "X$build_otp" = "X$used_otp" || {
test $force = yes || {
cat 1>&2 <<EOF
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* ERROR: Trying to cross compile an Erlang/$build_otp system with a different
* Erlang/$used_otp system. When cross compiling you should compile
* with an Erlang/OTP system of the same release. It is possible,
* however not recomended, to force the cross compilation even though
* the wrong Erlang/OTP system is used. For more information on this,
* and cross compiling Erlang/$build_otp in general, see the
* \$ERL_TOP/xcomp/README file.
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
EOF
exit 1
}
cat <<EOF
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* WARNING: Cross compiling an Erlang/$build_otp system with a different
* Erlang/$used_otp system. When cross compiling you should compile
* with an Erlang/OTP system of the same release. This build might
* fail, or silently produce suboptimal code. For more information on
* cross compiling Erlang/$build_otp, see the \$ERL_TOP/xcomp/README
* file.
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
EOF
}
cat <<EOF
*
* Cross compiling Erlang/$build_otp for: $target
*
EOF
exit 0
|
