#!/bin/sh # Used to compare sstate checksums between MACHINES # Execute script and compare generated list.M files # It's also usefull to keep older sstate checksums # to be able to find out why something is rebuilding # after updating metadata # $ diff \ # sstate-diff/1349348392/fake-cortexa8/list.M \ # sstate-diff/1349348392/fake-cortexa9/list.M \ # | wc -l # 538 # Then to compare sigdata use something like: # $ ls sstate-diff/1349348392/*/armv7a-vfp-neon*/linux-libc-headers/*do_configure*sigdata* # sstate-diff/1349348392/fake-cortexa8/armv7a-vfp-neon-oe-linux-gnueabi/linux-libc-headers/3.4.3-r0.do_configure.sigdata.cb73b3630a7b8191e72fc469c5137025 # sstate-diff/1349348392/fake-cortexa9/armv7a-vfp-neon-oe-linux-gnueabi/linux-libc-headers/3.4.3-r0.do_configure.sigdata.f37ada177bf99ce8af85914df22b5a0b # $ bitbake-diffsigs stamps.1349348392/*/armv7a-vfp-neon*/linux-libc-headers/*do_configure*sigdata* # basehash changed from 8d0bd67bb1da6f68717760fc3ef43171 to e869fa61426e88e9c30726ba88a1216a # Variable TUNE_CCARGS value changed from -march=armv7-a -mthumb-interwork -mfloat-abi=softfp -mfpu=neon -mtune=cortex-a8 to -march=armv7-a -mthumb-interwork -mfloat-abi=softfp -mfpu=neon -mtune=cortex-a9 # Global vars tmpdir= machines= targets= default_machines="qemuarm qemux86 qemux86-64" default_targets="core-image-base" usage () { cat << EOF Welcome to utility to compare sstate checksums between different MACHINEs. $0 <OPTION> Options: -h, --help Display this help and exit. --tmpdir=<tmpdir> Specify tmpdir, will use the environment variable TMPDIR if it is not specified. Something like /OE/oe-core/tmp-eglibc (no / at the end). --machines=<machines> List of MACHINEs separated by space, will use the environment variable MACHINES if it is not specified. Default value is "qemuarm qemux86 qemux86-64". --targets=<targets> List of targets separated by space, will use the environment variable TARGETS if it is not specified. Default value is "core-image-base". EOF } # Print error information and exit. echo_error () { echo "ERROR: $1" >&2 exit 1 } while [ -n "$1" ]; do case $1 in --tmpdir=*) tmpdir=`echo $1 | sed -e 's#^--tmpdir=##' | xargs readlink -e` [ -d "$tmpdir" ] || echo_error "Invalid argument to --tmpdir" shift ;; --machines=*) machines=`echo $1 | sed -e 's#^--machines="*\([^"]*\)"*#\1#'` shift ;; --targets=*) targets=`echo $1 | sed -e 's#^--targets="*\([^"]*\)"*#\1#'` shift ;; --help|-h) usage exit 0 ;; *) echo "Invalid arguments $*" echo_error "Try '$0 -h' for more information." ;; esac done # tmpdir directory, use environment variable TMPDIR # if it was not specified, otherwise, error. [ -n "$tmpdir" ] || tmpdir=$TMPDIR [ -n "$tmpdir" ] || echo_error "No tmpdir found!" [ -d "$tmpdir" ] || echo_error "Invalid tmpdir \"$tmpdir\"" [ -n "$machines" ] || machines=$MACHINES [ -n "$machines" ] || machines=$default_machines [ -n "$targets" ] || targets=$TARGETS [ -n "$targets" ] || targets=$default_targets OUTPUT=${tmpdir}/sstate-diff/`date "+%s"` for M in ${machines}; do find ${tmpdir}/stamps/ -name \*sigdata\* | xargs rm -f mkdir -p ${OUTPUT}/${M} export MACHINE=${M}; bitbake -S ${targets} | tee -a ${OUTPUT}/${M}/log; cp -ra ${tmpdir}/stamps/* ${OUTPUT}/${M} find ${OUTPUT}/${M} -name \*sigdata\* | sed "s#${OUTPUT}/${M}/##g" | sort > ${OUTPUT}/${M}/list M_UNDERSCORE=`echo ${M} | sed 's/-/_/g'` sed "s/${M_UNDERSCORE}/MACHINE/g; s/${M}/MACHINE/g" ${OUTPUT}/${M}/list | sort > ${OUTPUT}/${M}/list.M find ${tmpdir}/stamps/ -name \*sigdata\* | xargs rm -f done