[ci] Add arm artifacts in common lib azure pipeline (#10890)

cherry-pick PR from master:
https://github.com/Azure/sonic-buildimage/pull/10817

.azure-pipelines/template-commonlib.yml

@@ -1,34 +1,53 @@
+parameters:
+- name: archs
+  type: object
+  default:
+    - amd64
+    - armhf
+    - arm64
+
 jobs:
-- job: Build
+- ${{ each arch in parameters.archs }}:
+  - job: Build_${{ arch }}
     timeoutInMinutes: 120
+    ${{ if eq(arch,'amd64') }}:
       pool: sonicbld
+    ${{ else }}:
+      pool: sonicbld-${{ arch }}
+    variables:
+      - template: template-variables.yml
     steps:
     - checkout: self
       clean: true
       submodules: recursive
     - script: |
         set -ex
-      case $(Build.SourceBranchName) in
+        branch=$(Build.SourceBranchName)
-        202012 | 202106)
+        # replace all: '-' -> '_'
-          bldenv=buster
+        branch=${branch//-/_}
-          ;;
+        # replace all: 'a' -> 'A', DIST_MASTER is set in variable.
-        *)
+        BRANCH=DIST_${branch^^}
-          bldenv=bullseye
+        # variable name is dynamic
-          ;;
+        bldenvs=${!BRANCH}
-      esac
+        [ "$bldenvs" == "" ] && bldenvs="$(COMMON_LIB_BUILD_ENVS)"
-      BLDENV=$bldenv make -f Makefile.work configure PLATFORM=vs ENABLE_DOCKER_BASE_PULL=y
+        for bldenv in $bldenvs
-      echo "##vso[task.setvariable variable=bldenv;]$bldenv"
+        do
+          BLDENV=$bldenv make -f Makefile.work configure PLATFORM_ARCH=${{ arch }} PLATFORM=vs ENABLE_DOCKER_BASE_PULL=y
+        done
+        set +x
+        echo "##vso[task.setvariable variable=bldenvs;]$bldenvs"
       displayName: Make configure
     - script: |
         set -ex
-      LIBNL3_VERSION_BASE=$(grep "LIBNL3_VERSION_BASE =" rules/libnl3.mk | awk '{print$3}')
+        for bldenv in $(bldenvs)
-      LIBNL3_VERSION=$(grep "LIBNL3_VERSION =" rules/libnl3.mk | awk '{print$3}' | sed -e "s/(//" -e "s/)//" -e "s/\\$//" -e "s/LIBNL3_VERSION_BASE/$LIBNL3_VERSION_BASE/")
+        do
-      BLDENV=$(bldenv) make -f Makefile.work target/debs/$(bldenv)/libnl-3-200_${LIBNL3_VERSION}_amd64.deb ENABLE_DOCKER_BASE_PULL=y
+          SONIC_BUILD_JOBS=$(nproc) BLDENV=$bldenv make -f Makefile.work lib-packages ENABLE_DOCKER_BASE_PULL=y
-
+        done
-      LIBYANG_VERSION_BASE=$(grep "LIBYANG_VERSION_BASE =" rules/libyang.mk | awk '{print$3}')
+        mv target $(Build.ArtifactStagingDirectory)
-      LIBYANG_VERSION=$(grep "LIBYANG_VERSION =" rules/libyang.mk | awk '{print$3}' | sed -e "s/\\$//" -e "s/(//" -e "s/)//" -e "s/LIBYANG_VERSION_BASE/$LIBYANG_VERSION_BASE/")
-      BLDENV=$(bldenv) make -f Makefile.work target/debs/$(bldenv)/libyang_${LIBYANG_VERSION}_amd64.deb
-      find target -name *.deb | xargs -i cp {} $(Build.ArtifactStagingDirectory)
       displayName: Make common lib packages
+    - ${{ if eq(arch,'amd64') }}:
       - publish: $(Build.ArtifactStagingDirectory)
         artifact: common-lib
+    - ${{ else }}:
+      - publish: $(Build.ArtifactStagingDirectory)
+        artifact: common-lib.${{ arch }}

slave.mk

@@ -1302,3 +1302,7 @@ jessie : $$(addprefix $(TARGET_PATH)/,$$(JESSIE_DOCKER_IMAGES)) \
 .PHONY : $(SONIC_CLEAN_DEBS) $(SONIC_CLEAN_FILES) $(SONIC_CLEAN_TARGETS) $(SONIC_CLEAN_STDEB_DEBS) $(SONIC_CLEAN_WHEELS) $(SONIC_PHONY_TARGETS) clean distclean configure
 
 .INTERMEDIATE : $(SONIC_INSTALL_DEBS) $(SONIC_INSTALL_WHEELS) $(DOCKER_LOAD_TARGETS) docker-start .platform
+
+## To build some commonly used libs. Some submodules depend on these libs.
+## It is used in component pipelines. For example: swss needs libnl, libyang
+lib-packages: $(addprefix $(DEBS_PATH)/,$(LIBNL3) $(LIBYANG))