163 lines
6.2 KiB
Bash
163 lines
6.2 KiB
Bash
#!/usr/bin/env sh
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#
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# Copyright (c) Microsoft Corporation. All rights reserved.
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#
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set -e
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# The script checks necessary server requirements for the classic server
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# scenarios. Currently, the script can exit with any of the following
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# 3 exit codes and should be handled accordingly on the extension side.
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#
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# 0: All requirements are met, use the default server.
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# 99: Unsupported OS, abort server startup with appropriate error message.
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# 100: Use legacy server.
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#
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# Do not remove this check.
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# Provides a way to skip the server requirements check from
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# outside the install flow. A system process can create this
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# file before the server is downloaded and installed.
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if [ -f "/tmp/vscode-skip-server-requirements-check" ]; then
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echo "!!! WARNING: Skipping server pre-requisite check !!!"
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echo "!!! Server stability is not guaranteed. Proceed at your own risk. !!!"
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exit 0
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fi
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ARCH=$(uname -m)
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found_required_glibc=0
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found_required_glibcxx=0
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MIN_GLIBCXX_VERSION="3.4.25"
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# Extract the ID value from /etc/os-release
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if [ -f /etc/os-release ]; then
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OS_ID="$(cat /etc/os-release | grep -Eo 'ID=([^"]+)' | sed -n '1s/ID=//p')"
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if [ "$OS_ID" = "nixos" ]; then
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echo "Warning: NixOS detected, skipping GLIBC check"
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exit 0
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fi
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fi
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# Based on https://github.com/bminor/glibc/blob/520b1df08de68a3de328b65a25b86300a7ddf512/elf/cache.c#L162-L245
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case $ARCH in
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x86_64) LDCONFIG_ARCH="x86-64";;
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armv7l | armv8l)
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MIN_GLIBCXX_VERSION="3.4.26"
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LDCONFIG_ARCH="hard-float"
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;;
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arm64 | aarch64)
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BITNESS=$(getconf LONG_BIT)
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if [ "$BITNESS" = "32" ]; then
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# Can have 32-bit userland on 64-bit kernel
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LDCONFIG_ARCH="hard-float"
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else
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LDCONFIG_ARCH="AArch64"
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fi
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;;
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esac
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if [ "$OS_ID" != "alpine" ]; then
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if [ -f /sbin/ldconfig ]; then
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# Look up path
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libstdcpp_paths=$(/sbin/ldconfig -p | grep 'libstdc++.so.6')
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if [ "$(echo "$libstdcpp_paths" | wc -l)" -gt 1 ]; then
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libstdcpp_path=$(echo "$libstdcpp_paths" | grep "$LDCONFIG_ARCH" | awk '{print $NF}')
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else
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libstdcpp_path=$(echo "$libstdcpp_paths" | awk '{print $NF}')
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fi
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elif [ -f /usr/lib/libstdc++.so.6 ]; then
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# Typical path
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libstdcpp_path='/usr/lib/libstdc++.so.6'
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elif [ -f /usr/lib64/libstdc++.so.6 ]; then
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# Typical path
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libstdcpp_path='/usr/lib64/libstdc++.so.6'
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else
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echo "Warning: Can't find libstdc++.so or ldconfig, can't verify libstdc++ version"
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fi
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while [ -n "$libstdcpp_path" ]; do
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# Extracts the version number from the path, e.g. libstdc++.so.6.0.22 -> 6.0.22
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# which is then compared based on the fact that release versioning and symbol versioning
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# are aligned for libstdc++. Refs https://gcc.gnu.org/onlinedocs/libstdc++/manual/abi.html
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# (i-e) GLIBCXX_3.4.<release> is provided by libstdc++.so.6.y.<release>
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libstdcpp_path_line=$(echo "$libstdcpp_path" | head -n1)
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libstdcpp_real_path=$(readlink -f "$libstdcpp_path_line")
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libstdcpp_version=$(grep -ao 'GLIBCXX_[0-9]*\.[0-9]*\.[0-9]*' "$libstdcpp_real_path" | sort -V | tail -1)
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libstdcpp_version_number=$(echo "$libstdcpp_version" | sed 's/GLIBCXX_//')
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if [ "$(printf '%s\n' "$MIN_GLIBCXX_VERSION" "$libstdcpp_version_number" | sort -V | head -n1)" = "$MIN_GLIBCXX_VERSION" ]; then
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found_required_glibcxx=1
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break
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fi
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libstdcpp_path=$(echo "$libstdcpp_path" | tail -n +2) # remove first line
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done
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else
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echo "Warning: alpine distro detected, skipping GLIBCXX check"
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found_required_glibcxx=1
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fi
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if [ "$found_required_glibcxx" = "0" ]; then
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echo "Warning: Missing GLIBCXX >= $MIN_GLIBCXX_VERSION! from $libstdcpp_real_path"
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fi
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if [ "$OS_ID" = "alpine" ]; then
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MUSL_RTLDLIST="/lib/ld-musl-aarch64.so.1 /lib/ld-musl-x86_64.so.1"
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for rtld in ${MUSL_RTLDLIST}; do
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if [ -x $rtld ]; then
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musl_version=$("$rtld" --version 2>&1 | grep "Version" | awk '{print $NF}')
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break
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fi
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done
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if [ "$(printf '%s\n' "1.2.3" "$musl_version" | sort -V | head -n1)" != "1.2.3" ]; then
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echo "Error: Unsupported alpine distribution. Please refer to our supported distro section https://aka.ms/vscode-remote/linux for additional information."
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exit 99
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fi
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found_required_glibc=1
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elif [ -z "$(ldd --version 2>&1 | grep 'musl libc')" ]; then
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if [ -f /sbin/ldconfig ]; then
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# Look up path
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libc_paths=$(/sbin/ldconfig -p | grep 'libc.so.6')
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if [ "$(echo "$libc_paths" | wc -l)" -gt 1 ]; then
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libc_path=$(echo "$libc_paths" | grep "$LDCONFIG_ARCH" | awk '{print $NF}')
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else
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libc_path=$(echo "$libc_paths" | awk '{print $NF}')
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fi
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elif [ -f /usr/lib/libc.so.6 ]; then
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# Typical path
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libc_path='/usr/lib/libc.so.6'
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elif [ -f /lib64/libc.so.6 ]; then
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# Typical path (OpenSUSE)
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libc_path='/lib64/libc.so.6'
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elif [ -f /usr/lib64/libc.so.6 ]; then
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# Typical path
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libc_path='/usr/lib64/libc.so.6'
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else
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echo "Warning: Can't find libc.so or ldconfig, can't verify libc version"
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fi
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while [ -n "$libc_path" ]; do
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# Rather than trusting the output of ldd --version (which is not always accurate)
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# we instead use the version of the cached libc.so.6 file itself.
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libc_path_line=$(echo "$libc_path" | head -n1)
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libc_real_path=$(readlink -f "$libc_path_line")
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libc_version=$(cat "$libc_real_path" | sed -n 's/.*release version \([0-9]\+\.[0-9]\+\).*/\1/p')
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if [ "$(printf '%s\n' "2.28" "$libc_version" | sort -V | head -n1)" = "2.28" ]; then
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found_required_glibc=1
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break
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fi
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libc_path=$(echo "$libc_path" | tail -n +2) # remove first line
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done
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if [ "$found_required_glibc" = "0" ]; then
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echo "Warning: Missing GLIBC >= 2.28! from $libc_real_path"
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fi
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else
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echo "Warning: musl detected, skipping GLIBC check"
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found_required_glibc=1
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fi
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if [ "$found_required_glibc" = "0" ] || [ "$found_required_glibcxx" = "0" ]; then
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echo "Warning: Missing required dependencies. Please refer to our FAQ https://aka.ms/vscode-remote/faq/old-linux for additional information."
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# Custom exit code based on https://tldp.org/LDP/abs/html/exitcodes.html
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exit 100
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fi
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