mirror of
https://github.com/openharmony/third_party_toybox.git
synced 2026-07-01 21:34:01 -04:00
gongguilin
42 lines
1.6 KiB
Bash
Executable File
42 lines
1.6 KiB
Bash
Executable File
#!/bin/bash
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# Regenerate scripts/prereq (hopefully) portable build.
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# Detect toybox prerequisites using record-commands
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mkroot/record-commands make clean defconfig toybox
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sed -i 's/default y/default n/' generated/Config.probed
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CMDLIST="$(echo toybox; ./toybox cut -DF 1 log.txt | sort -u | grep -v nproc)"
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{
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for i in $(tr '[:lower:]' '[:upper:]' <<<"$CMDLIST")
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do
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grep -qi CONFIG_$i'[= ]' .config && echo CONFIG_$i=y
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done
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} > prereq.mini
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# Create minimal dependency-free build
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make clean allnoconfig KCONFIG_ALLCONFIG=prereq.mini
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make toybox
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cat > scripts/prereq/build.sh << 'EOF'
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#!/bin/sh
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BUILD='cc -funsigned-char -I scripts/prereq -I . -Os -ffunction-sections -fdata-sections -fno-asynchronous-unwind-tables -fno-strict-aliasing -DTOYBOX_VERSION=""'
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LINK=''
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EOF
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grep -A999 FILES= generated/build.sh >> scripts/prereq/build.sh
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sed -i 's/ toybox$/&-prereq/' scripts/prereq/build.sh
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# harvest stripped down headers
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echo > scripts/prereq/generated/tags.h
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sed 's/.*/#define HELP_& ""/' <<<"$CMDLIST" > scripts/prereq/generated/help.h
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egrep "($(xargs <<<"$CMDLIST"|tr ' [:lower:]' '|[:upper:]'))" \
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generated/newtoys.h > scripts/prereq/generated/newtoys.h
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FORS="$(sed -n 's/#define FOR_//p' $(grep -o 'toys/[^/]*/[^.]*\.c' scripts/prereq/build.sh) | xargs | tr ' ' '|')"
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sed -En '1,/^$/p;/\/\/ ('"$FORS"') /,/^$/p;/#ifdef FOR_('"$FORS"')$/,/^$/p' generated/flags.h > scripts/prereq/generated/flags.h
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egrep "OPTSTR_($(egrep -v "($FORS)" <<<"$CMDLIST" | xargs | tr ' ' '|'))" \
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generated/flags.h >> scripts/prereq/generated/flags.h
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# TODO: slim down config.h
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cp generated/{globals,config}.h scripts/prereq/generated/
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