diff options
| -rw-r--r-- | docs/new-applet-HOWTO.txt | 3 | ||||
| -rwxr-xr-x | scripts/individual | 129 | ||||
| -rwxr-xr-x | scripts/mkdiff_obj | 23 |
3 files changed, 16 insertions, 139 deletions
diff --git a/docs/new-applet-HOWTO.txt b/docs/new-applet-HOWTO.txt index 8a825b9..bb29999 100644 --- a/docs/new-applet-HOWTO.txt +++ b/docs/new-applet-HOWTO.txt @@ -19,8 +19,7 @@ such as who you stole the code from and so forth. Also include the mini-GPL boilerplate. Be sure to name the main function <applet>_main instead of main. And be sure to put it in <applet>.c. Usage does not have to be taken care of by your applet. -Make sure to #include "libbb.h" as the first include file in your applet so -the bb_config.h and appropriate platform specific files are included properly. +Make sure to #include "libbb.h" as the first include file in your applet. For a new applet mu, here is the code that would go in mu.c: diff --git a/scripts/individual b/scripts/individual deleted file mode 100755 index e93ca55..0000000 --- a/scripts/individual +++ /dev/null @@ -1,129 +0,0 @@ -#!/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 $APPFILT` libbb/libbb.a -Iinclude \ - -DBUILD_INDIVIDUAL \ - '-Drun_applet_and_exit(...)' '-Dfind_applet_by_name(...)=0' \ - -DAPPLET_main=${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/* diff --git a/scripts/mkdiff_obj b/scripts/mkdiff_obj index a6ec5e6..f783491 100755 --- a/scripts/mkdiff_obj +++ b/scripts/mkdiff_obj @@ -1,28 +1,35 @@ #!/bin/sh +usage() { + echo "Usage: ${0##*/} DIR1 DIR2" + echo + echo "Compares all object files recursivelty found in DIR1 and DIR2." + echo "Prints diff of their disassembly." + echo + exit $1 +} + filter() { # sed removes " address: " prefixes which mess up diff sed $'s/^\\(\t*\\)[ ]*[0-9a-f][0-9a-f]*:[ \t]*/\\1/' \ | sed 's/__GI_//g' } -test -d "$1" || exit 1 -test -d "$2" || exit 1 +test -d "$1" || usage 1 +test -d "$2" || usage 1 { ( cd "$1" || exit 1 - find -name '*.o' -o -name '*.os' # -o -name '*.so' + find -name '*.o' # -o -name '*.os' # -o -name '*.so' ) ( cd "$2" || exit 1 - find -name '*.o' -o -name '*.os' # -o -name '*.so' + find -name '*.o' # -o -name '*.os' # -o -name '*.so' ) } | sed 's:^\./::' | sort | uniq | \ -tee LST | \ ( -IFS='' -while read -r oname; do +while IFS='' read -r oname; do if ! test -f "$1/$oname"; then echo "Only $2/$oname" continue @@ -34,6 +41,6 @@ while read -r oname; do diff -q -- "$1/$oname" "$2/$oname" >/dev/null && continue (cd "$1"; objdump -dr "$oname" | filter >"$oname.disasm") (cd "$2"; objdump -dr "$oname" | filter >"$oname.disasm") - diff -u "$1/$oname.disasm" "$2/$oname.disasm" + diff -u -- "$1/$oname.disasm" "$2/$oname.disasm" done ) |