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aed5f4d65d
* fix: fallback to strings for non-executable libc.so.6 * chore: use cat over strings --------- Co-authored-by: khreenberg <unknown> Co-authored-by: Robo <hop2deep@gmail.com>
107 lines
3.9 KiB
Bash
107 lines
3.9 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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BITNESS=$(getconf LONG_BIT)
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ARCH=$(uname -m)
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found_required_glibc=0
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found_required_glibcxx=0
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# Based on https://github.com/bminor/glibc/blob/520b1df08de68a3de328b65a25b86300a7ddf512/elf/cache.c#L162-L245
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case $ARCH in
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x86_64) LDCONFIG_ARCH="x86-64";;
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armv7l | armv8l) LDCONFIG_ARCH="hard-float";;
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arm64 | aarch64)
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if [ "$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 [ -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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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 /sbin/ldconfig ]; then
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# Look up path
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libstdcpp_paths=$(ldconfig -p | grep 'libstdc++.so.6')
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if [ "$(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 $NF}')
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fi
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else
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echo "Warning: Can't find libstdc++.so or ldconfig, can't verify libstdc++ version"
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fi
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if [ -n "$libstdcpp_path" ]; then
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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_real_path=$(readlink -f "$libstdcpp_path")
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libstdcpp_version=$(echo "$libstdcpp_real_path" | awk -F'\\.so\\.' '{print $NF}')
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if [ "$(printf '%s\n' "6.0.25" "$libstdcpp_version" | sort -V | head -n1)" = "6.0.25" ]; then
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found_required_glibcxx=1
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else
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echo "Warning: Missing GLIBCXX >= 3.4.25! from $libstdcpp_real_path"
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fi
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fi
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if [ -n "$(ldd --version | grep -v musl)" ]; then
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if [ -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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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 /sbin/ldconfig ]; then
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# Look up path
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libc_paths=$(ldconfig -p | grep 'libc.so.6')
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if [ "$(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 $NF}')
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fi
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else
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echo "Warning: Can't find libc.so or ldconfig, can't verify libc version"
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fi
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if [ -n "$libc_path" ]; then
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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_real_path=$(readlink -f "$libc_path")
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if [ -x "$libc_real_path" ]; then
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# get version from executable
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libc_version=$($libc_real_path --version | sed -n 's/.*stable release version \([0-9]\+\.[0-9]\+\).*/\1/p')
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else
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# .so is not executable on this host; try getting from strings
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libc_version=$(cat "$libc_real_path" | sed -n 's/.*stable release version \([0-9]\+\.[0-9]\+\).*/\1/p')
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fi
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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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else
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echo "Warning: Missing GLIBC >= 2.28! from $libc_real_path"
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fi
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fi
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else
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echo "Warning: musl detected, skipping GLIBC check"
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found_required_glibc=1
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fi
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if [ "$found_required_glibc" = "0" ] || [ "$found_required_glibcxx" = "0" ]; then
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echo "Error: 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 99
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fi
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