1*cf5a6c84SAndroid Build Coastguard Worker#!/bin/bash 2*cf5a6c84SAndroid Build Coastguard Worker 3*cf5a6c84SAndroid Build Coastguard Worker# Regenerate scripts/prereq (hopefully) portable build. 4*cf5a6c84SAndroid Build Coastguard Worker 5*cf5a6c84SAndroid Build Coastguard Worker# Detect toybox prerequisites using record-commands 6*cf5a6c84SAndroid Build Coastguard Worker 7*cf5a6c84SAndroid Build Coastguard Workermkroot/record-commands make clean defconfig toybox 8*cf5a6c84SAndroid Build Coastguard Workersed -i 's/default y/default n/' generated/Config.probed 9*cf5a6c84SAndroid Build Coastguard WorkerCMDLIST="$(echo toybox; ./toybox cut -DF 1 log.txt | sort -u | grep -v nproc)" 10*cf5a6c84SAndroid Build Coastguard Worker{ 11*cf5a6c84SAndroid Build Coastguard Worker for i in $(tr '[:lower:]' '[:upper:]' <<<"$CMDLIST") 12*cf5a6c84SAndroid Build Coastguard Worker do 13*cf5a6c84SAndroid Build Coastguard Worker grep -qi CONFIG_$i'[= ]' .config && echo CONFIG_$i=y 14*cf5a6c84SAndroid Build Coastguard Worker done 15*cf5a6c84SAndroid Build Coastguard Worker} > prereq.mini 16*cf5a6c84SAndroid Build Coastguard Worker 17*cf5a6c84SAndroid Build Coastguard Worker# Create minimal dependency-free build 18*cf5a6c84SAndroid Build Coastguard Worker 19*cf5a6c84SAndroid Build Coastguard Workermake clean allnoconfig KCONFIG_ALLCONFIG=prereq.mini 20*cf5a6c84SAndroid Build Coastguard Workermake toybox 21*cf5a6c84SAndroid Build Coastguard Workercat > scripts/prereq/build.sh << 'EOF' 22*cf5a6c84SAndroid Build Coastguard Worker#!/bin/sh 23*cf5a6c84SAndroid Build Coastguard Worker 24*cf5a6c84SAndroid Build Coastguard WorkerBUILD='cc -funsigned-char -I scripts/prereq -I . -Os -ffunction-sections -fdata-sections -fno-asynchronous-unwind-tables -fno-strict-aliasing -DTOYBOX_VERSION=""' 25*cf5a6c84SAndroid Build Coastguard WorkerLINK='' 26*cf5a6c84SAndroid Build Coastguard WorkerEOF 27*cf5a6c84SAndroid Build Coastguard Workergrep -A999 FILES= generated/build.sh >> scripts/prereq/build.sh 28*cf5a6c84SAndroid Build Coastguard Workersed -i 's/ toybox$/&-prereq/' scripts/prereq/build.sh 29*cf5a6c84SAndroid Build Coastguard Worker 30*cf5a6c84SAndroid Build Coastguard Worker# harvest stripped down headers 31*cf5a6c84SAndroid Build Coastguard Worker 32*cf5a6c84SAndroid Build Coastguard Workerecho > scripts/prereq/generated/tags.h 33*cf5a6c84SAndroid Build Coastguard Workersed 's/.*/#define HELP_& ""/' <<<"$CMDLIST" > scripts/prereq/generated/help.h 34*cf5a6c84SAndroid Build Coastguard Workeregrep "($(xargs <<<"$CMDLIST"|tr ' [:lower:]' '|[:upper:]'))" \ 35*cf5a6c84SAndroid Build Coastguard Worker generated/newtoys.h > scripts/prereq/generated/newtoys.h 36*cf5a6c84SAndroid Build Coastguard WorkerFORS="$(sed -n 's/#define FOR_//p' $(grep -o 'toys/[^/]*/[^.]*\.c' scripts/prereq/build.sh) | xargs | tr ' ' '|')" 37*cf5a6c84SAndroid Build Coastguard Workersed -En '1,/^$/p;/\/\/ ('"$FORS"') /,/^$/p;/#ifdef FOR_('"$FORS"')$/,/^$/p' generated/flags.h > scripts/prereq/generated/flags.h 38*cf5a6c84SAndroid Build Coastguard Workeregrep "OPTSTR_($(egrep -v "($FORS)" <<<"$CMDLIST" | xargs | tr ' ' '|'))" \ 39*cf5a6c84SAndroid Build Coastguard Worker generated/flags.h >> scripts/prereq/generated/flags.h 40*cf5a6c84SAndroid Build Coastguard Worker# TODO: slim down config.h 41*cf5a6c84SAndroid Build Coastguard Workercp generated/{globals,config}.h scripts/prereq/generated/ 42