1#!/bin/sh 2 3# Compile individual versions of each busybox applet. 4 5if [ $# -eq 0 ] 6then 7 8# Clear out the build directory. (Make clean should do this instead of here.) 9 10rm -rf build 11mkdir build 12 13# Make our prerequisites. 14 15make busybox.links include/bb_config.h $(pwd)/{libbb/libbb.a,archival/libunarchive/libunarchive.a,coreutils/libcoreutils/libcoreutils.a,networking/libiproute/libiproute.a} 16 17else 18# Could very well be that we want to build an individual applet but have no 19# 'build' dir yet.. 20 21test -d ./build || mkdir build 22 23fi 24 25# About 3/5 of the applets build from one .c file (with the same name as the 26# corresponding applet), and all it needs to link against. However, to build 27# them all we need more than that. 28 29# Figure out which applets need extra libraries added to their command line. 30 31function substithing() 32{ 33 if [ "${1/ $3 //}" != "$1" ] 34 then 35 echo $2 36 fi 37} 38 39function extra_libraries() 40{ 41 # gzip needs gunzip.c (when gunzip is enabled, anyway). 42 substithing " gzip " "archival/gunzip.c archival/uncompress.c" "$1" 43 44 # init needs init_shared.c 45 substithing " init " "init/init_shared.c" "$1" 46 47 # ifconfig needs interface.c 48 substithing " ifconfig " "networking/interface.c" "$1" 49 50 # Applets that need libunarchive.a 51 substithing " ar bunzip2 unlzma cpio dpkg gunzip rpm2cpio rpm tar uncompress unzip dpkg_deb gzip " "archival/libunarchive/libunarchive.a" "$1" 52 53 # Applets that need libcoreutils.a 54 substithing " cp mv " "coreutils/libcoreutils/libcoreutils.a" "$1" 55 56 # Applets that need libiproute.a 57 substithing " ip " "networking/libiproute/libiproute.a" "$1" 58 59 # What needs -libm? 60 substithing " awk dc " "-lm" "$1" 61 62 # What needs -lcrypt? 63 substithing " httpd vlock " "-lcrypt" "$1" 64} 65 66# Query applets.h to figure out which applets need special treatment 67 68strange_names=`sed -rn -e 's/\#.*//' -e 's/.*APPLET_NOUSAGE\(([^,]*),([^,]*),.*/\1 \2/p' -e 's/.*APPLET_ODDNAME\(([^,]*),([^,]*),.*, *([^)]*).*/\1 \2@\3/p' include/applets.h` 69 70function bonkname() 71{ 72 while [ $# -gt 0 ] 73 do 74 if [ "$APPLET" == "$1" ] 75 then 76 APPFILT="${2/@*/}" 77 if [ "${APPFILT}" == "$2" ] 78 then 79 HELPNAME='"nousage\n"' # These should be _fixed_. 80 else 81 HELPNAME="${2/*@/}"_full_usage 82 fi 83 break 84 fi 85 shift 2 86 done 87#echo APPLET=${APPLET} APPFILT=${APPFILT} HELPNAME=${HELPNAME} 2=${2} 88} 89 90# Iterate through every name in busybox.links 91 92function buildit () 93{ 94 export APPLET="$1" 95 export APPFILT=${APPLET} 96 export HELPNAME=${APPLET}_full_usage 97 98 bonkname $strange_names 99 100 j=`find archival console-tools coreutils debianutils editors findutils init loginutils miscutils modutils networking procps shell sysklogd util-linux -name "${APPFILT}.c"` 101 if [ -z "$j" ] 102 then 103 echo no file for $APPLET 104 else 105 echo "Building $APPLET" 106 gcc -Os -o build/$APPLET applets/individual.c $j \ 107 `extra_libraries $APPFILT` libbb/libbb.a -Iinclude \ 108 -DBUILD_INDIVIDUAL \ 109 '-Drun_applet_and_exit(...)' '-Dfind_applet_by_name(...)=0' \ 110 -DAPPLET_main=${APPFILT}_main -DAPPLET_full_usage=${HELPNAME} 111 if [ $? -ne 0 ]; 112 then 113 echo "Failed $APPLET" 114 fi 115 fi 116} 117 118if [ $# -eq 0 ] 119then 120 for APPLET in `sed 's .*/ ' busybox.links` 121 do 122 buildit "$APPLET" 123 done 124else 125 buildit "$1" 126fi 127 128 129strip build/* 130