144 lines
5 KiB
Bash
144 lines
5 KiB
Bash
#!/usr/bin/env bash
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#
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# This file detects the C/C++ compiler and exports it to the CC/CXX environment variables
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#
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# NOTE: some scripts source this file and rely on stdout being empty, make sure to not output anything here!
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if [[ "$#" -lt 3 ]]; then
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echo "Usage..."
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echo "init-compiler.sh <script directory> <Architecture> <compiler>"
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echo "Specify the script directory."
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echo "Specify the target architecture."
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echo "Specify the name of compiler (clang or gcc)."
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exit 1
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fi
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nativescriptroot="$1"
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build_arch="$2"
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compiler="$3"
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case "$compiler" in
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clang*|-clang*|--clang*)
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# clangx.y or clang-x.y
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version="$(echo "$compiler" | tr -d '[:alpha:]-=')"
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parts=(${version//./ })
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majorVersion="${parts[0]}"
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minorVersion="${parts[1]}"
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if [[ -z "$minorVersion" && "$majorVersion" -le 6 ]]; then
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minorVersion=0;
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fi
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compiler=clang
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;;
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gcc*|-gcc*|--gcc*)
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# gccx.y or gcc-x.y
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version="$(echo "$compiler" | tr -d '[:alpha:]-=')"
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parts=(${version//./ })
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majorVersion="${parts[0]}"
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minorVersion="${parts[1]}"
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compiler=gcc
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;;
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esac
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cxxCompiler="$compiler++"
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. "$nativescriptroot"/../pipeline-logging-functions.sh
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# clear the existing CC and CXX from environment
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CC=
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CXX=
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LDFLAGS=
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if [[ "$compiler" == "gcc" ]]; then cxxCompiler="g++"; fi
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check_version_exists() {
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desired_version=-1
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# Set up the environment to be used for building with the desired compiler.
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if command -v "$compiler-$1.$2" > /dev/null; then
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desired_version="-$1.$2"
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elif command -v "$compiler$1$2" > /dev/null; then
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desired_version="$1$2"
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elif command -v "$compiler-$1$2" > /dev/null; then
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desired_version="-$1$2"
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fi
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echo "$desired_version"
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}
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if [[ -z "$CLR_CC" ]]; then
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# Set default versions
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if [[ -z "$majorVersion" ]]; then
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# note: gcc (all versions) and clang versions higher than 6 do not have minor version in file name, if it is zero.
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if [[ "$compiler" == "clang" ]]; then versions=( 17 16 15 14 13 12 11 10 9 8 7 6.0 5.0 4.0 3.9 3.8 3.7 3.6 3.5 )
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elif [[ "$compiler" == "gcc" ]]; then versions=( 12 11 10 9 8 7 6 5 4.9 ); fi
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for version in "${versions[@]}"; do
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parts=(${version//./ })
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desired_version="$(check_version_exists "${parts[0]}" "${parts[1]}")"
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if [[ "$desired_version" != "-1" ]]; then majorVersion="${parts[0]}"; break; fi
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done
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if [[ -z "$majorVersion" ]]; then
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if command -v "$compiler" > /dev/null; then
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if [[ "$(uname)" != "Darwin" ]]; then
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Write-PipelineTelemetryError -category "Build" -type "warning" "Specific version of $compiler not found, falling back to use the one in PATH."
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fi
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CC="$(command -v "$compiler")"
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CXX="$(command -v "$cxxCompiler")"
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else
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Write-PipelineTelemetryError -category "Build" "No usable version of $compiler found."
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exit 1
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fi
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else
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if [[ "$compiler" == "clang" && "$majorVersion" -lt 5 ]]; then
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if [[ "$build_arch" == "arm" || "$build_arch" == "armel" ]]; then
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if command -v "$compiler" > /dev/null; then
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Write-PipelineTelemetryError -category "Build" -type "warning" "Found clang version $majorVersion which is not supported on arm/armel architectures, falling back to use clang from PATH."
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CC="$(command -v "$compiler")"
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CXX="$(command -v "$cxxCompiler")"
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else
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Write-PipelineTelemetryError -category "Build" "Found clang version $majorVersion which is not supported on arm/armel architectures, and there is no clang in PATH."
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exit 1
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fi
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fi
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fi
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fi
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else
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desired_version="$(check_version_exists "$majorVersion" "$minorVersion")"
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if [[ "$desired_version" == "-1" ]]; then
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Write-PipelineTelemetryError -category "Build" "Could not find specific version of $compiler: $majorVersion $minorVersion."
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exit 1
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fi
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fi
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if [[ -z "$CC" ]]; then
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CC="$(command -v "$compiler$desired_version")"
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CXX="$(command -v "$cxxCompiler$desired_version")"
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if [[ -z "$CXX" ]]; then CXX="$(command -v "$cxxCompiler")"; fi
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fi
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else
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if [[ ! -f "$CLR_CC" ]]; then
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Write-PipelineTelemetryError -category "Build" "CLR_CC is set but path '$CLR_CC' does not exist"
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exit 1
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fi
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CC="$CLR_CC"
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CXX="$CLR_CXX"
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fi
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if [[ -z "$CC" ]]; then
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Write-PipelineTelemetryError -category "Build" "Unable to find $compiler."
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exit 1
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fi
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# Only lld version >= 9 can be considered stable
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if [[ "$compiler" == "clang" && "$majorVersion" -ge 9 ]]; then
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if "$CC" -fuse-ld=lld -Wl,--version >/dev/null 2>&1; then
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LDFLAGS="-fuse-ld=lld"
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fi
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fi
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SCAN_BUILD_COMMAND="$(command -v "scan-build$desired_version")"
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export CC CXX LDFLAGS SCAN_BUILD_COMMAND
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