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
|
#!/bin/sh
# Compile individual versions of each busybox applet.
if [ $# -eq 0 ]
then
# Clear out the build directory. (Make clean should do this instead of here.)
rm -rf build
mkdir build
# Make our prerequisites.
make busybox.links include/bb_config.h $(pwd)/{libbb/libbb.a,archival/libunarchive/libunarchive.a,coreutils/libcoreutils/libcoreutils.a,networking/libiproute/libiproute.a}
else
# Could very well be that we want to build an individual applet but have no
# 'build' dir yet..
test -d ./build || mkdir build
fi
# About 3/5 of the applets build from one .c file (with the same name as the
# corresponding applet), and all it needs to link against. However, to build
# them all we need more than that.
# Figure out which applets need extra libraries added to their command line.
function substithing()
{
if [ "${1/ $3 //}" != "$1" ]
then
echo $2
fi
}
function extra_libraries()
{
# gzip needs gunzip.c (when gunzip is enabled, anyway).
substithing " gzip " "archival/gunzip.c archival/uncompress.c" "$1"
# init needs init_shared.c
substithing " init " "init/init_shared.c" "$1"
# ifconfig needs interface.c
substithing " ifconfig " "networking/interface.c" "$1"
# Applets that need libunarchive.a
substithing " ar bunzip2 unlzma cpio dpkg gunzip rpm2cpio rpm tar uncompress unzip dpkg_deb gzip " "archival/libunarchive/libunarchive.a" "$1"
# Applets that need libcoreutils.a
substithing " cp mv " "coreutils/libcoreutils/libcoreutils.a" "$1"
# Applets that need libiproute.a
substithing " ip " "networking/libiproute/libiproute.a" "$1"
# What needs -libm?
substithing " awk dc " "-lm" "$1"
# What needs -lcrypt?
substithing " httpd vlock " "-lcrypt" "$1"
}
# Query applets.h to figure out which applets need special treatment
strange_names=`sed -rn -e 's/\#.*//' -e 's/.*APPLET_NOUSAGE\(([^,]*),([^,]*),.*/\1 \2/p' -e 's/.*APPLET_ODDNAME\(([^,]*),([^,]*),.*, *([^)]*).*/\1 \2@\3/p' include/applets.h`
function bonkname()
{
while [ $# -gt 0 ]
do
if [ "$APPLET" == "$1" ]
then
APPFILT="${2/@*/}"
if [ "${APPFILT}" == "$2" ]
then
HELPNAME='"nousage\n"' # These should be _fixed_.
else
HELPNAME="${2/*@/}"_full_usage
fi
break
fi
shift 2
done
#echo APPLET=${APPLET} APPFILT=${APPFILT} HELPNAME=${HELPNAME} 2=${2}
}
# Iterate through every name in busybox.links
function buildit ()
{
export APPLET="$1"
export APPFILT=${APPLET}
export HELPNAME=${APPLET}_full_usage
bonkname $strange_names
j=`find archival console-tools coreutils debianutils editors findutils init loginutils miscutils modutils networking procps shell sysklogd util-linux -name "${APPFILT}.c"`
if [ -z "$j" ]
then
echo no file for $APPLET
else
echo "Building $APPLET"
gcc -Os -o build/$APPLET applets/individual.c $j \
`extra_libraries $APPFILT` libbb/libbb.a -Iinclude \
-DBUILD_INDIVIDUAL \
'-Drun_applet_by_name(...)' '-Dfind_applet_by_name(...)=0' \
-DAPPLET_main=${APPFILT}_main -DAPPLET_full_usage=${HELPNAME}
if [ $? -ne 0 ];
then
echo "Failed $APPLET"
fi
fi
}
if [ $# -eq 0 ]
then
for APPLET in `sed 's .*/ ' busybox.links`
do
buildit "$APPLET"
done
else
buildit "$1"
fi
strip build/*
|
