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coverage.sh: assemble ELF header according to bits and endian

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Johannes 'josch' Schauer 2020-11-29 22:24:01 +01:00
parent 077d8cdd9a
commit 9e56353661
Signed by untrusted user: josch
GPG key ID: F2CBA5C78FBD83E1
1 changed files with 18 additions and 2 deletions
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coverage.sh
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@ -2096,12 +2096,28 @@ EOF
[ -e "\\\$1"/usr/bin/eatmydata ]
SCRIPT
chmod +x /tmp/checkeatmydata.sh
# first four bytes: magic
elfheader="\\177ELF"
# fifth byte: bits
case "\$(dpkg-architecture -qDEB_HOST_ARCH_BITS)" in
32) elfheader="\$elfheader\\001";;
64) elfheader="\$elfheader\\002";;
*) echo "bits not supported"; exit 1;;
esac
# sixth byte: endian
case "\$(dpkg-architecture -qDEB_HOST_ARCH_ENDIAN)" in
little) elfheader="\$elfheader\\001";;
big) elfheader="\$elfheader\\002";;
*) echo "endian not supported"; exit 1;;
esac
# seventh and eigth byte: elf version (1) and abi (unset)
elfheader="\$elfheader\\001\\000"
$CMD --mode=root --variant=apt \
--customize-hook=/tmp/checkeatmydata.sh \
--essential-hook=/tmp/checkeatmydata.sh \
--extract-hook='printf "\\177ELF\\002\\001\\001\\000" | cmp --bytes=8 - "\$1"/usr/bin/dpkg' \
--extract-hook='printf "'"\$elfheader"'" | cmp --bytes=8 - "\$1"/usr/bin/dpkg' \
--hook-dir=./hooks/eatmydata \
--customize-hook='printf "\\177ELF\\002\\001\\001\\000" | cmp --bytes=8 - "\$1"/usr/bin/dpkg' \
--customize-hook='printf "'"\$elfheader"'" | cmp --bytes=8 - "\$1"/usr/bin/dpkg' \
$DEFAULT_DIST /tmp/debian-chroot $mirror
tar -C /tmp/debian-chroot --one-file-system -c . | tar -t | sort | diff -u tar1.txt -
rm /tmp/checkeatmydata.sh