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#!/bin/bash | |
set +x | |
versions="1618.0.0 1688.4.0 1632.3.0" | |
versions="$(curl https://coreos.com/releases/releases.json 2>/dev/null | jq keys | jq .[] | tr -d '\"' | tr '\n' ' ')" | |
mkdir -p ~/grub-info/ | |
LINUX_MOD='usr/lib/grub/i386-pc/linux.module' | |
LINUX_DEBUG="/usr/lib/debug/${LINUX_MOD}.debug" | |
function download_release() { | |
local major=$(cut -d. -f1 <<< $1) | |
if [[ $major -lt 926 ]]; then | |
return | |
fi | |
if [[ $major -gt 1722 ]]; then | |
return | |
fi | |
if [[ -d grub-info/$1 ]]; then | |
return | |
fi | |
echo "version $1" | |
mkdir grub-info/$1 | |
pushd grub-info/$1 | |
gsutil -q cp "gs://builds.developer.core-os.net/sdk/amd64/$1/pkgs/sys-boot/grub-*tbz2" . | |
for i in grub-* | |
do | |
mkdir $(basename -s .tbz2 $i) | |
mv $i $(basename -s .tbz2 $i) | |
pushd $(basename -s .tbz2 $i) | |
qtbz2 -s $i | |
tar xf ${i/.tbz2/.tar.bz2} | |
popd | |
done | |
popd | |
} | |
for i in $versions | |
do | |
download_release "$i" | |
done | |
for rel in grub-info/* | |
do | |
for grubver in $rel/* | |
do | |
if [[ $(basename $grubver) == 'grub-*' ]]; then | |
continue | |
fi | |
mod="$grubver/$LINUX_MOD" | |
if [[ -e $grubver/$LINUX_DEBUG ]]; then | |
eu-unstrip $mod $grubver/$LINUX_DEBUG -o /tmp/abcde | |
mod=/tmp/abcde | |
fi | |
offset="$(objdump -t $mod | grep linux_params | cut -d ' ' -f1)" | |
if [[ -z $offset ]]; then | |
echo $grubver asdfasdf | |
continue | |
fi | |
value="b8 $(python -c "import re; print((' '.join(re.findall('..', format((0x${offset} + (616*0x3fc)), '08x'))[::-1])))")" | |
echo $(objdump -d $mod | grep "$value") $rel | |
# print what it should be | |
echo "b8 $(python -c "import re; print((' '.join(re.findall('..', format(0x${offset} + 616, '08x'))[::-1])))")" | |
done | |
done |
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