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Lower GLIBC requirements by using chromium reversion script and patches #22

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Lower GLIBC requirements by using chromium reversion script and patches #22

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63 changes: 63 additions & 0 deletions .github/workflows/pushaction.yml
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -94,6 +94,69 @@ jobs:
run: sudo apt-get -yq install gcc-arm-linux-gnueabihf g++-arm-linux-gnueabihf binutils-arm-linux-gnueabihf
- name: Install Linux arm64 compilers/libraries
run: sudo apt-get -yq install gcc-aarch64-linux-gnu g++-aarch64-linux-gnu binutils-aarch64-linux-gnu
- name: Add patches to minimize needed GLIBC version
run: |
CURRENT_DIR="$(pwd)"
sudo apt-get -yq install python3
# download chromium reversion_glibc.py script from chromium source tree at pinned commit (incase they ever move or change it)
wget https://raw.githubusercontent.com/chromium/chromium/01bc42d648c45439e1beef8fd25fde3aef9079bc/build/linux/sysroot_scripts/reversion_glibc.py -O /tmp/reversion_glibc.py
# set targeted minimum GLIBC to 2.17
sed -i 's/26]/17]/g' /tmp/reversion_glibc.py
chmod +x /tmp/reversion_glibc.py
# download the host libc6 package from apt and patch the binaries in it
# replacing the host libc6 at runtime causes crashs and hangs but apt is able to do it without issue
sudo apt-get install --download-only --reinstall -y libc6
sudo rm -rf /tmp/libc6
sudo mkdir /tmp/libc6
sudo cp /var/cache/apt/archives/libc6_2.31-*_amd64.deb /tmp/libc6
cd /tmp/libc6
deb_name="$(ls)"
sudo ar x "$deb_name"
sudo tar xf data.tar.xz
sudo mkdir DEBIAN
sudo tar xf control.tar.xz -C DEBIAN
sudo rm -f control.tar.xz \
data.tar.xz \
debian-binary \
DEBIAN/md5sums \
DEBIAN/archives \
DEBIAN/conffiles \
"$deb_name"

# patch libc6 in host download deb and cross compilers using the reversion_glibc.py script
files=(/tmp/libc6/lib/x86_64-linux-gnu/libc.so.6 /tmp/libc6/lib/x86_64-linux-gnu/libm.so.6 \
/usr/aarch64-linux-gnu/lib/libc.so.6 /usr/aarch64-linux-gnu/lib/libm.so.6 \
/usr/arm-linux-gnueabihf/lib/libc.so.6 /usr/arm-linux-gnueabihf/lib/libm.so.6 \
/libx32/libc.so.6 /libx32/libm.so.6 \
/lib32/libc.so.6 /lib32/libm.so.6 \
/usr/i686-linux-gnu/lib/libc.so.6 /usr/i686-linux-gnu/lib/libm.so.6)
for file in "${files[@]}"; do
[ -f $file ] && sudo python3 /tmp/reversion_glibc.py "$file"
done

# install patched libc6 deb
sudo dpkg-deb -b . "$deb_name"
sudo apt install --reinstall --allow-downgrades -y ./"$deb_name"
cd "$CURRENT_DIR"
# __GLIBC_MINOR__ is used as a feature test macro. Replace it with the
# earliest supported version of glibc 2.17
files=(/usr/include/features.h \
/usr/aarch64-linux-gnu/include/features.h \
/usr/arm-linux-gnueabihf/include/features.h \
/usr/i686-linux-gnu/include/features.h)
for file in "${files[@]}"; do
[ -f $file ] && sudo sed -i 's|\(#define\s\+__GLIBC_MINOR__\)|\1 17 //|' "$file"
done

# fcntl64() was introduced in glibc 2.28. Make sure to use fcntl() instead.
files=(/usr/include/fcntl.h \
/usr/aarch64-linux-gnu/include/fcntl.h \
/usr/arm-linux-gnueabihf/include/fcntl.h \
/usr/i686-linux-gnu/include/fcntl.h)
for file in "${files[@]}"; do
[ -f $file ] && sudo sed -i '{N; s/#ifndef __USE_FILE_OFFSET64\(\nextern int fcntl\)/#if 1\1/}' "$file"
done
true
- name: Download macOS natives
uses: actions/download-artifact@v3
with:
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63 changes: 63 additions & 0 deletions .github/workflows/releaseaction.yml
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -93,6 +93,69 @@ jobs:
run: sudo apt-get -yq install gcc-arm-linux-gnueabihf g++-arm-linux-gnueabihf binutils-arm-linux-gnueabihf
- name: Install Linux arm64 compilers/libraries
run: sudo apt-get -yq install gcc-aarch64-linux-gnu g++-aarch64-linux-gnu binutils-aarch64-linux-gnu
- name: Add patches to minimize needed GLIBC version
run: |
CURRENT_DIR="$(pwd)"
sudo apt-get -yq install python3
# download chromium reversion_glibc.py script from chromium source tree at pinned commit (incase they ever move or change it)
wget https://raw.githubusercontent.com/chromium/chromium/01bc42d648c45439e1beef8fd25fde3aef9079bc/build/linux/sysroot_scripts/reversion_glibc.py -O /tmp/reversion_glibc.py
# set targeted minimum GLIBC to 2.17
sed -i 's/26]/17]/g' /tmp/reversion_glibc.py
chmod +x /tmp/reversion_glibc.py
# download the host libc6 package from apt and patch the binaries in it
# replacing the host libc6 at runtime causes crashs and hangs but apt is able to do it without issue
sudo apt-get install --download-only --reinstall -y libc6
sudo rm -rf /tmp/libc6
sudo mkdir /tmp/libc6
sudo cp /var/cache/apt/archives/libc6_2.31-*_amd64.deb /tmp/libc6
cd /tmp/libc6
deb_name="$(ls)"
sudo ar x "$deb_name"
sudo tar xf data.tar.xz
sudo mkdir DEBIAN
sudo tar xf control.tar.xz -C DEBIAN
sudo rm -f control.tar.xz \
data.tar.xz \
debian-binary \
DEBIAN/md5sums \
DEBIAN/archives \
DEBIAN/conffiles \
"$deb_name"

# patch libc6 in host download deb and cross compilers using the reversion_glibc.py script
files=(/tmp/libc6/lib/x86_64-linux-gnu/libc.so.6 /tmp/libc6/lib/x86_64-linux-gnu/libm.so.6 \
/usr/aarch64-linux-gnu/lib/libc.so.6 /usr/aarch64-linux-gnu/lib/libm.so.6 \
/usr/arm-linux-gnueabihf/lib/libc.so.6 /usr/arm-linux-gnueabihf/lib/libm.so.6 \
/libx32/libc.so.6 /libx32/libm.so.6 \
/lib32/libc.so.6 /lib32/libm.so.6 \
/usr/i686-linux-gnu/lib/libc.so.6 /usr/i686-linux-gnu/lib/libm.so.6)
for file in "${files[@]}"; do
[ -f $file ] && sudo python3 /tmp/reversion_glibc.py "$file"
done

# install patched libc6 deb
sudo dpkg-deb -b . "$deb_name"
sudo apt install --reinstall --allow-downgrades -y ./"$deb_name"
cd "$CURRENT_DIR"
# __GLIBC_MINOR__ is used as a feature test macro. Replace it with the
# earliest supported version of glibc 2.17
files=(/usr/include/features.h \
/usr/aarch64-linux-gnu/include/features.h \
/usr/arm-linux-gnueabihf/include/features.h \
/usr/i686-linux-gnu/include/features.h)
for file in "${files[@]}"; do
[ -f $file ] && sudo sed -i 's|\(#define\s\+__GLIBC_MINOR__\)|\1 17 //|' "$file"
done

# fcntl64() was introduced in glibc 2.28. Make sure to use fcntl() instead.
files=(/usr/include/fcntl.h \
/usr/aarch64-linux-gnu/include/fcntl.h \
/usr/arm-linux-gnueabihf/include/fcntl.h \
/usr/i686-linux-gnu/include/fcntl.h)
for file in "${files[@]}"; do
[ -f $file ] && sudo sed -i '{N; s/#ifndef __USE_FILE_OFFSET64\(\nextern int fcntl\)/#if 1\1/}' "$file"
done
true
- name: Download macOS natives
uses: actions/download-artifact@v3
with:
Expand Down