Share init-compiler with arcade (#59018)

* Share init-compiler with arcade

* Fixup merge conflict

* typo

Author: am11

eng/common/native/find-native-compiler.sh eng/common/native/init-compiler.sheng/common/native/find-native-compiler.sh renamed to eng/common/native/init-compiler.sh

@@ -1,39 +1,32 @@
 #!/usr/bin/env bash
 #
-# This file locates the native compiler with the given name and version and sets the environment variables to locate it.
+# This file detects the C/C++ compiler and exports it to the CC/CXX environment variables
 #
 
-source="${BASH_SOURCE[0]}"
-
-# resolve $SOURCE until the file is no longer a symlink
-while [[ -h $source ]]; do
-  scriptroot="$( cd -P "$( dirname "$source" )" && pwd )"
-  source="$(readlink "$source")"
-
-  # if $source was a relative symlink, we need to resolve it relative to the path where the
-  # symlink file was located
-  [[ $source != /* ]] && source="$scriptroot/$source"
-done
-scriptroot="$( cd -P "$( dirname "$source" )" && pwd )"
-
-if [ $# -lt 0 ]
-then
+if [[ "$#" -lt 2 ]]; then
   echo "Usage..."
-  echo "find-native-compiler.sh <compiler> <compiler major version> <compiler minor version>"
+  echo "init-compiler.sh <Architecture> <compiler> <compiler major version> <compiler minor version>"
+  echo "Specify the target architecture."
   echo "Specify the name of compiler (clang or gcc)."
   echo "Specify the major version of compiler."
   echo "Specify the minor version of compiler."
   exit 1
 fi
 
-. $scriptroot/../pipeline-logging-functions.sh
+. "$( cd -P "$( dirname "$0" )" && pwd )"/../pipeline-logging-functions.sh
 
-compiler="$1"
+build_arch="$1"
+compiler="$2"
 cxxCompiler="$compiler++"
-majorVersion="$2"
-minorVersion="$3"
+majorVersion="$3"
+minorVersion="$4"
 
-if [ "$compiler" = "gcc" ]; then cxxCompiler="g++"; fi
+# clear the existing CC and CXX from environment
+CC=
+CXX=
+LDFLAGS=
+
+if [[ "$compiler" == "gcc" ]]; then cxxCompiler="g++"; fi
 
 check_version_exists() {
     desired_version=-1
@@ -50,38 +43,38 @@ check_version_exists() {
     echo "$desired_version"
 }
 
-if [ -z "$CLR_CC" ]; then
+if [[ -z "$CLR_CC" ]]; then
 
     # Set default versions
-    if [ -z "$majorVersion" ]; then
+    if [[ -z "$majorVersion" ]]; then
         # note: gcc (all versions) and clang versions higher than 6 do not have minor version in file name, if it is zero.
-        if [ "$compiler" = "clang" ]; then versions=( 12 11 10 9 8 7 6.0 5.0 4.0 3.9 3.8 3.7 3.6 3.5 )
-        elif [ "$compiler" = "gcc" ]; then versions=( 9 8 7 6 5 4.9 ); fi
+        if [[ "$compiler" == "clang" ]]; then versions=( 12 11 10 9 8 7 6.0 5.0 4.0 3.9 3.8 3.7 3.6 3.5 )
+        elif [[ "$compiler" == "gcc" ]]; then versions=( 11 10 9 8 7 6 5 4.9 ); fi
 
         for version in "${versions[@]}"; do
             parts=(${version//./ })
             desired_version="$(check_version_exists "${parts[0]}" "${parts[1]}")"
-            if [ "$desired_version" != "-1" ]; then majorVersion="${parts[0]}"; break; fi
+            if [[ "$desired_version" != "-1" ]]; then majorVersion="${parts[0]}"; break; fi
         done
 
-        if [ -z "$majorVersion" ]; then
+        if [[ -z "$majorVersion" ]]; then
             if command -v "$compiler" > /dev/null; then
-                if [ "$(uname)" != "Darwin" ]; then
+                if [[ "$(uname)" != "Darwin" ]]; then
                     Write-PipelineTelemetryError -category "Build" -type "warning" "Specific version of $compiler not found, falling back to use the one in PATH."
                 fi
-                export CC="$(command -v "$compiler")"
-                export CXX="$(command -v "$cxxCompiler")"
+                CC="$(command -v "$compiler")"
+                CXX="$(command -v "$cxxCompiler")"
             else
                 Write-PipelineTelemetryError -category "Build" "No usable version of $compiler found."
                 exit 1
             fi
         else
-            if [ "$compiler" = "clang" ] && [ "$majorVersion" -lt 5 ]; then
-                if [ "$build_arch" = "arm" ] || [ "$build_arch" = "armel" ]; then
+            if [[ "$compiler" == "clang" && "$majorVersion" -lt 5 ]]; then
+                if [[ "$build_arch" == "arm" || "$build_arch" == "armel" ]]; then
                     if command -v "$compiler" > /dev/null; then
                         Write-PipelineTelemetryError -category "Build" -type "warning" "Found clang version $majorVersion which is not supported on arm/armel architectures, falling back to use clang from PATH."
-                        export CC="$(command -v "$compiler")"
-                        export CXX="$(command -v "$cxxCompiler")"
+                        CC="$(command -v "$compiler")"
+                        CXX="$(command -v "$cxxCompiler")"
                     else
                         Write-PipelineTelemetryError -category "Build" "Found clang version $majorVersion which is not supported on arm/armel architectures, and there is no clang in PATH."
                         exit 1
@@ -91,31 +84,40 @@ if [ -z "$CLR_CC" ]; then
         fi
     else
         desired_version="$(check_version_exists "$majorVersion" "$minorVersion")"
-        if [ "$desired_version" = "-1" ]; then
+        if [[ "$desired_version" == "-1" ]]; then
             Write-PipelineTelemetryError -category "Build" "Could not find specific version of $compiler: $majorVersion $minorVersion."
             exit 1
         fi
     fi
 
-    if [ -z "$CC" ]; then
-        export CC="$(command -v "$compiler$desired_version")"
-        export CXX="$(command -v "$cxxCompiler$desired_version")"
-        if [ -z "$CXX" ]; then export CXX="$(command -v "$cxxCompiler")"; fi
+    if [[ -z "$CC" ]]; then
+        CC="$(command -v "$compiler$desired_version")"
+        CXX="$(command -v "$cxxCompiler$desired_version")"
+        if [[ -z "$CXX" ]]; then CXX="$(command -v "$cxxCompiler")"; fi
     fi
 else
-    if [ ! -f "$CLR_CC" ]; then
+    if [[ ! -f "$CLR_CC" ]]; then
         Write-PipelineTelemetryError -category "Build" "CLR_CC is set but path '$CLR_CC' does not exist"
         exit 1
     fi
-    export CC="$CLR_CC"
-    export CXX="$CLR_CXX"
+    CC="$CLR_CC"
+    CXX="$CLR_CXX"
 fi
 
-if [ -z "$CC" ]; then
-   Write-PipelineTelemetryError -category "Build" "Unable to find $compiler."
+if [[ -z "$CC" ]]; then
+    Write-PipelineTelemetryError -category "Build" "Unable to find $compiler."
     exit 1
 fi
 
-export CCC_CC="$CC"
-export CCC_CXX="$CXX"
-export SCAN_BUILD_COMMAND="$(command -v "scan-build$desired_version")"
+if [[ "$compiler" == "clang" ]]; then
+    if command -v "lld$desired_version" > /dev/null; then
+        # Only lld version >= 9 can be considered stable
+        if [[ "$majorVersion" -ge 9 ]]; then
+            LDFLAGS="-fuse-ld=lld"
+        fi
+    fi
+fi
+
+SCAN_BUILD_COMMAND="$(command -v "scan-build$desired_version")"
+
+export CC CXX LDFLAGS SCAN_BUILD_COMMAND

eng/native/gen-buildsys.sh

@@ -26,10 +26,12 @@ compiler="$4"
 majorVersion="$5"
 minorVersion="$6"
 
-source "$scriptroot/init-compiler.sh" "$build_arch" "$compiler" "$majorVersion" "$minorVersion"
+if [[ "$compiler" != "default" ]]; then
+    source "$scriptroot/../common/native/init-compiler.sh" "$build_arch" "$compiler" "$majorVersion" "$minorVersion"
 
-CCC_CC="$CC"
-CCC_CXX="$CXX"
+    CCC_CC="$CC"
+    CCC_CXX="$CXX"
+fi
 
 export CCC_CC CCC_CXX
 

eng/native/init-compiler.sh

@@ -61,6 +61,8 @@
     <MonoCCompiler Condition="$(MonoCCompiler.StartsWith('-'))">$(MonoCCompiler.TrimStart('-'))</MonoCCompiler>
     <MonoCxxCompiler Condition="'$(MonoCCompiler)' == 'clang'">clang++</MonoCxxCompiler>
     <MonoCxxCompiler Condition="'$(MonoCCompiler)' == 'gcc'">g++</MonoCxxCompiler>
+    <RepositoryEngineeringCommonDir>$([MSBuild]::NormalizeDirectory('$(RepositoryEngineeringDir)', 'common'))</RepositoryEngineeringCommonDir>
+    <CrossToolchainFile>$([MSBuild]::NormalizePath('$(RepositoryEngineeringCommonDir)', 'cross', 'toolchain.cmake'))</CrossToolchainFile>
   </PropertyGroup>
 
   <!-- default thread suspend for specific platforms -->
@@ -224,7 +226,7 @@
 
     <!-- ARM Linux cross build options on CI -->
     <ItemGroup Condition="'$(TargetsAndroid)' != 'true' and '$(MonoCrossDir)' != '' and ('$(TargetArchitecture)' == 'arm' or '$(TargetArchitecture)' == 'arm64')">
-      <_MonoCMakeArgs Include="-DCMAKE_TOOLCHAIN_FILE=$([MSBuild]::NormalizePath('$(RepositoryEngineeringDir)', 'common', 'cross', 'toolchain.cmake'))" />
+      <_MonoCMakeArgs Include="-DCMAKE_TOOLCHAIN_FILE=$(CrossToolchainFile)" />
       <_MonoBuildEnv Condition="'$(Platform)' == 'arm64'" Include="TARGET_BUILD_ARCH=arm64" />
       <_MonoBuildEnv Condition="'$(Platform)' == 'arm'" Include="TARGET_BUILD_ARCH=arm" />
       <_MonoBuildEnv Condition="'$(Platform)' == 'arm64'" Include="PKG_CONFIG_PATH=$(MonoCrossDir)/usr/lib/aarch64-linux-gnu/pkgconfig" />
@@ -233,21 +235,21 @@
 
     <!-- x64 illumos cross build options -->
     <ItemGroup Condition="'$(TargetsIllumos)' == 'true' and '$(MonoCrossDir)' != ''">
-      <_MonoCMakeArgs Include="-DCMAKE_TOOLCHAIN_FILE=$([MSBuild]::NormalizePath('$(RepositoryEngineeringDir)', 'common', 'cross', 'toolchain.cmake'))" />
+      <_MonoCMakeArgs Include="-DCMAKE_TOOLCHAIN_FILE=$(CrossToolchainFile)" />
       <_MonoBuildEnv Include="TARGET_BUILD_ARCH=x64" />
       <_MonoBuildEnv Include="PKG_CONFIG_PATH=$(MonoCrossDir)/lib/pkgconfig" />
     </ItemGroup>
 
     <!-- s390x Linux cross build options -->
     <ItemGroup Condition="'$(MonoCrossDir)' != '' and '$(TargetArchitecture)' == 's390x'">
-      <_MonoCMakeArgs Include="-DCMAKE_TOOLCHAIN_FILE=$([MSBuild]::NormalizePath('$(RepositoryEngineeringDir)', 'common', 'cross', 'toolchain.cmake'))" />
+      <_MonoCMakeArgs Include="-DCMAKE_TOOLCHAIN_FILE=$(CrossToolchainFile)" />
       <_MonoBuildEnv Include="TARGET_BUILD_ARCH=s390x" />
       <_MonoBuildEnv Include="PKG_CONFIG_PATH=$(MonoCrossDir)/usr/lib/s390x-linux-gnu/pkgconfig" />
     </ItemGroup>
 
     <!-- x64 FreeBSD cross build options -->
     <ItemGroup Condition="'$(TargetsFreeBSD)' == 'true' and '$(MonoCrossDir)' != ''">
-      <_MonoCMakeArgs Include="-DCMAKE_TOOLCHAIN_FILE=$([MSBuild]::NormalizePath('$(RepositoryEngineeringDir)', 'common', 'cross', 'toolchain.cmake'))" />
+      <_MonoCMakeArgs Include="-DCMAKE_TOOLCHAIN_FILE=$(CrossToolchainFile)" />
       <_MonoBuildEnv Include="TARGET_BUILD_ARCH=x64" />
     </ItemGroup>
 
@@ -464,7 +466,7 @@
     <PropertyGroup>
       <EMSDK_PATH>$([MSBuild]::EnsureTrailingSlash('$(EMSDK_PATH)'))</EMSDK_PATH>
       <_MonoCMakeConfigureCommand>cmake @(_MonoCMakeArgs, ' ') $(MonoCMakeExtraArgs) &quot;$(MonoProjectRoot.TrimEnd('\/'))&quot;</_MonoCMakeConfigureCommand>
-      <_MonoCMakeConfigureCommand Condition="'$(TargetsBrowser)' != 'true' and '$(_MonoRunInitCompiler)' != 'false' and '$(OS)' != 'Windows_NT'">bash -c 'source $(RepositoryEngineeringDir)native/init-compiler.sh $(_CompilerTargetArch) $(MonoCCompiler) &amp;&amp; @(_MonoBuildEnv, ' ') $(_MonoCMakeConfigureCommand)'</_MonoCMakeConfigureCommand>
+      <_MonoCMakeConfigureCommand Condition="'$(TargetsBrowser)' != 'true' and '$(_MonoRunInitCompiler)' != 'false' and '$(OS)' != 'Windows_NT'">bash -c 'source $(RepositoryEngineeringCommonDir)native/init-compiler.sh $(_CompilerTargetArch) $(MonoCCompiler) &amp;&amp; @(_MonoBuildEnv, ' ') $(_MonoCMakeConfigureCommand)'</_MonoCMakeConfigureCommand>
       <_MonoCMakeConfigureCommand Condition="'$(TargetsBrowser)' != 'true' and '$(_MonoRunInitCompiler)' != 'false' and '$(OS)' == 'Windows_NT'">call &quot;$(RepositoryEngineeringDir)native\init-vs-env.cmd&quot; $(_CompilerTargetArch) &amp;&amp; cd /D &quot;$(MonoObjDir)&quot; &amp;&amp; @(_MonoBuildEnv, ' ') $(_MonoCMakeConfigureCommand)</_MonoCMakeConfigureCommand>
       <_MonoCMakeConfigureCommand Condition="'$(TargetsBrowser)' != 'true' and '$(_MonoRunInitCompiler)' == 'false'">$(_MonoCCOption) $(_MonoCXXOption) @(_MonoBuildEnv, ' ') $(_MonoCMakeConfigureCommand)</_MonoCMakeConfigureCommand>
       <_MonoCMakeConfigureCommand Condition="'$(TargetsBrowser)' == 'true' and '$(OS)' != 'Windows_NT'">bash -c 'source $(EMSDK_PATH)/emsdk_env.sh 2>&amp;1 &amp;&amp; emcmake $(_MonoCMakeConfigureCommand)'</_MonoCMakeConfigureCommand>