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theofficialgmantheofficialgman
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Lower GLIBC requirements by using chromium reversion script and patches
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‎.github/workflows/pushaction.yml

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Original file line numberDiff line numberDiff line change
@@ -94,6 +94,60 @@ jobs:
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run: sudo apt-get -yq install gcc-arm-linux-gnueabihf g++-arm-linux-gnueabihf binutils-arm-linux-gnueabihf
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- name: Install Linux arm64 compilers/libraries
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run: sudo apt-get -yq install gcc-aarch64-linux-gnu g++-aarch64-linux-gnu binutils-aarch64-linux-gnu
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- name: Add patches to minimize needed GLIBC version
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run: |
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CURRENT_DIR="$(pwd)"
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sudo apt-get -yq install python3
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# download chromium reversion_glibc.py script from chromium source tree at pinned commit (incase they ever move or change it)
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wget https://raw.githubusercontent.com/chromium/chromium/01bc42d648c45439e1beef8fd25fde3aef9079bc/build/linux/sysroot_scripts/reversion_glibc.py -O /tmp/reversion_glibc.py
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# set targeted minimum GLIBC to 2.17
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sed -i 's/26]/17]/g' /tmp/reversion_glibc.py
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chmod +x /tmp/reversion_glibc.py
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# download the host libc6 package from apt and patch the binaries in it
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# replacing the host libc6 at runtime causes crashs and hangs but apt is able to do it without issue
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sudo apt-get install --download-only --reinstall -y libc6
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sudo rm -rf /tmp/libc6
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sudo mkdir /tmp/libc6
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sudo cp /var/cache/apt/archives/libc6_2.31-*_amd64.deb /tmp/libc6
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cd /tmp/libc6
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deb_name="$(ls)"
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sudo ar x "$deb_name"
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sudo tar xf data.tar.xz
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sudo mkdir DEBIAN
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sudo tar xf control.tar.xz -C DEBIAN
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sudo rm -f control.tar.xz \
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data.tar.xz \
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debian-binary \
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DEBIAN/md5sums \
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DEBIAN/archives \
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DEBIAN/conffiles \
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"$deb_name"
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# patch libc6 in host download deb and cross compilers using the reversion_glibc.py script
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files=(/tmp/libc6/lib/x86_64-linux-gnu/libc.so.6 /tmp/libc6/lib/x86_64-linux-gnu/libm.so.6
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/usr/aarch64-linux-gnu/lib/libc.so.6 /usr/aarch64-linux-gnu/lib/libm.so.6 \
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/usr/arm-linux-gnueabihf/lib/libc.so.6 /usr/arm-linux-gnueabihf/lib/libm.so.6 \
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/libx32/libc.so.6 /libx32/libm.so.6 \
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/lib32/libc.so.6 /lib32/libm.so.6)
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for file in "${files[@]}"; do
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sudo python3 /tmp/reversion_glibc.py "$file"
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done
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# install patched libc6 deb
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sudo dpkg-deb -b . "$deb_name"
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sudo apt install --reinstall --allow-downgrades -y ./"$deb_name"
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cd "$CURRENT_DIR"
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# __GLIBC_MINOR__ is used as a feature test macro. Replace it with the
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# earliest supported version of glibc 2.17
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sudo sed -i 's|\(#define\s\+__GLIBC_MINOR__\)|\1 17 //|' "/usr/include/features.h"
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sudo sed -i 's|\(#define\s\+__GLIBC_MINOR__\)|\1 17 //|' "/usr/aarch64-linux-gnu/include/features.h"
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sudo sed -i 's|\(#define\s\+__GLIBC_MINOR__\)|\1 17 //|' "/usr/arm-linux-gnueabihf/include/features.h"
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# fcntl64() was introduced in glibc 2.28. Make sure to use fcntl() instead.
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sudo sed -i '{N; s/#ifndef __USE_FILE_OFFSET64\(\nextern int fcntl\)/#if 1\1/}' "/usr/include/fcntl.h"
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sudo sed -i '{N; s/#ifndef __USE_FILE_OFFSET64\(\nextern int fcntl\)/#if 1\1/}' "/usr/aarch64-linux-gnu/include/fcntl.h"
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sudo sed -i '{N; s/#ifndef __USE_FILE_OFFSET64\(\nextern int fcntl\)/#if 1\1/}' "/usr/arm-linux-gnueabihf/include/fcntl.h"
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- name: Download macOS natives
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uses: actions/download-artifact@v3
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with:

‎.github/workflows/releaseaction.yml

+54
Original file line numberDiff line numberDiff line change
@@ -93,6 +93,60 @@ jobs:
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run: sudo apt-get -yq install gcc-arm-linux-gnueabihf g++-arm-linux-gnueabihf binutils-arm-linux-gnueabihf
9494
- name: Install Linux arm64 compilers/libraries
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run: sudo apt-get -yq install gcc-aarch64-linux-gnu g++-aarch64-linux-gnu binutils-aarch64-linux-gnu
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- name: Add patches to minimize needed GLIBC version
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run: |
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CURRENT_DIR="$(pwd)"
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sudo apt-get -yq install python3
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# download chromium reversion_glibc.py script from chromium source tree at pinned commit (incase they ever move or change it)
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wget https://raw.githubusercontent.com/chromium/chromium/01bc42d648c45439e1beef8fd25fde3aef9079bc/build/linux/sysroot_scripts/reversion_glibc.py -O /tmp/reversion_glibc.py
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# set targeted minimum GLIBC to 2.17
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sed -i 's/26]/17]/g' /tmp/reversion_glibc.py
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chmod +x /tmp/reversion_glibc.py
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# download the host libc6 package from apt and patch the binaries in it
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# replacing the host libc6 at runtime causes crashs and hangs but apt is able to do it without issue
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sudo apt-get install --download-only --reinstall -y libc6
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sudo rm -rf /tmp/libc6
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sudo mkdir /tmp/libc6
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sudo cp /var/cache/apt/archives/libc6_2.31-*_amd64.deb /tmp/libc6
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cd /tmp/libc6
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deb_name="$(ls)"
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sudo ar x "$deb_name"
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sudo tar xf data.tar.xz
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sudo mkdir DEBIAN
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sudo tar xf control.tar.xz -C DEBIAN
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sudo rm -f control.tar.xz \
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data.tar.xz \
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debian-binary \
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DEBIAN/md5sums \
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DEBIAN/archives \
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DEBIAN/conffiles \
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"$deb_name"
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# patch libc6 in host download deb and cross compilers using the reversion_glibc.py script
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files=(/tmp/libc6/lib/x86_64-linux-gnu/libc.so.6 /tmp/libc6/lib/x86_64-linux-gnu/libm.so.6
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/usr/aarch64-linux-gnu/lib/libc.so.6 /usr/aarch64-linux-gnu/lib/libm.so.6 \
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/usr/arm-linux-gnueabihf/lib/libc.so.6 /usr/arm-linux-gnueabihf/lib/libm.so.6 \
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/libx32/libc.so.6 /libx32/libm.so.6 \
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/lib32/libc.so.6 /lib32/libm.so.6)
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for file in "${files[@]}"; do
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sudo python3 /tmp/reversion_glibc.py "$file"
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done
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# install patched libc6 deb
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sudo dpkg-deb -b . "$deb_name"
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sudo apt install --reinstall --allow-downgrades -y ./"$deb_name"
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cd "$CURRENT_DIR"
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# __GLIBC_MINOR__ is used as a feature test macro. Replace it with the
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# earliest supported version of glibc 2.17
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sudo sed -i 's|\(#define\s\+__GLIBC_MINOR__\)|\1 17 //|' "/usr/include/features.h"
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sudo sed -i 's|\(#define\s\+__GLIBC_MINOR__\)|\1 17 //|' "/usr/aarch64-linux-gnu/include/features.h"
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sudo sed -i 's|\(#define\s\+__GLIBC_MINOR__\)|\1 17 //|' "/usr/arm-linux-gnueabihf/include/features.h"
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# fcntl64() was introduced in glibc 2.28. Make sure to use fcntl() instead.
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sudo sed -i '{N; s/#ifndef __USE_FILE_OFFSET64\(\nextern int fcntl\)/#if 1\1/}' "/usr/include/fcntl.h"
148+
sudo sed -i '{N; s/#ifndef __USE_FILE_OFFSET64\(\nextern int fcntl\)/#if 1\1/}' "/usr/aarch64-linux-gnu/include/fcntl.h"
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sudo sed -i '{N; s/#ifndef __USE_FILE_OFFSET64\(\nextern int fcntl\)/#if 1\1/}' "/usr/arm-linux-gnueabihf/include/fcntl.h"
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- name: Download macOS natives
97151
uses: actions/download-artifact@v3
98152
with:

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