chore: add aarch64-linux-musl gcc 10.3.0 toolchain (microsoft#47)

Author: deepak1556

azure-pipelines.yml

@@ -16,7 +16,7 @@ stages:
           vmImage: 'ubuntu-latest'
         timeoutInMinutes: 180
         steps:
-          - template: build-toolchain.yml
+          - template: build-gnu-toolchain.yml
             parameters:
               config: aarch64-gcc-10.5.0-glibc-2.28.config
               arch: arm64
@@ -28,7 +28,7 @@ stages:
           vmImage: 'ubuntu-latest'
         timeoutInMinutes: 180
         steps:
-          - template: build-toolchain.yml
+          - template: build-gnu-toolchain.yml
             parameters:
               config: aarch64-gcc-8.5.0-glibc-2.28.config
               arch: arm64
@@ -40,7 +40,7 @@ stages:
           vmImage: 'ubuntu-latest'
         timeoutInMinutes: 180
         steps:
-          - template: build-toolchain.yml
+          - template: build-gnu-toolchain.yml
             parameters:
               config: x86_64-gcc-10.5.0-glibc-2.28.config
               arch: amd64
@@ -52,7 +52,7 @@ stages:
           vmImage: 'ubuntu-latest'
         timeoutInMinutes: 180
         steps:
-          - template: build-toolchain.yml
+          - template: build-gnu-toolchain.yml
             parameters:
               config: x86_64-gcc-8.5.0-glibc-2.28.config
               arch: amd64
@@ -64,7 +64,7 @@ stages:
           vmImage: 'ubuntu-latest'
         timeoutInMinutes: 180
         steps:
-          - template: build-toolchain.yml
+          - template: build-gnu-toolchain.yml
             parameters:
               arch: armhf
               config: armhf-gcc-10.5.0-glibc-2.28.config
@@ -76,13 +76,23 @@ stages:
           vmImage: 'ubuntu-latest'
         timeoutInMinutes: 180
         steps:
-          - template: build-toolchain.yml
+          - template: build-gnu-toolchain.yml
             parameters:
               arch: armhf
               config: armhf-gcc-8.5.0-glibc-2.28.config
               tuple: arm-rpi-linux-gnueabihf
               pkg: arm-rpi-linux-gnueabihf-glibc-2.28-gcc-8.5.0
 
+      - job: aarch64_musl_gcc_10_3_0
+        pool:
+          vmImage: 'ubuntu-latest'
+        timeoutInMinutes: 180
+        steps:
+          - template: build-musl-toolchain.yml
+            parameters:
+              tuple: aarch64-linux-musl
+              pkg: aarch64-linux-musl-gcc-10.3.0
+
   - ${{ if parameters.github_release }}:
     - stage: Release_toolchain
       dependsOn:
@@ -109,6 +119,8 @@ stages:
               displayName: Copy aarch64 glibc 2.28 gcc 8.5.0 toolchain
             - script: cp $(Pipeline.Workspace)/arm-rpi-linux-gnueabihf-glibc-2.28-gcc-8.5.0/arm-rpi-linux-gnueabihf-glibc-2.28-gcc-8.5.0.tar.gz $(Build.ArtifactStagingDirectory)/arm-rpi-linux-gnueabihf-glibc-2.28-gcc-8.5.0.tar.gz
               displayName: Copy armhf glibc 2.28 gcc 8.5.0 toolchain
+            - script: cp $(Pipeline.Workspace)/aarch64-linux-musl-gcc-10.3.0/aarch64-linux-musl-gcc-10.3.0.tar.gz $(Build.ArtifactStagingDirectory)/aarch64-linux-musl-gcc-10.3.0.tar.gz
+              displayName: Copy aarch64 musl gcc 10.3.0 toolchain
             - script: (cd $(Build.ArtifactStagingDirectory) ; shasum -a 256 *.tar.gz) > $(Build.ArtifactStagingDirectory)/SHASUMS256.txt
               displayName: Compute checksums
             - task: GithubRelease@1

build-toolchain.yml renamed to build-gnu-toolchain.yml

@@ -0,0 +1,28 @@
+parameters:
+  - name: tuple
+    type: string
+  - name: pkg
+    type: string
+
+steps:
+- script: |
+    set -e
+    sudo apt-get update
+    sudo apt-get install -y gcc g++ gperf bison flex texinfo help2man make libncurses5-dev \
+    python3-dev autoconf automake libtool libtool-bin gawk wget bzip2 xz-utils unzip \
+    patch rsync meson ninja-build git
+  displayName: 'Prepare dependencies'
+- script: |
+    set -e
+    git clone https://github.com/richfelker/musl-cross-make/
+    cd musl-cross-make
+    make TARGET=${{ parameters.tuple }} GCC_VER=10.3.0 BINUTILS_VER=2.33.1 LINUX_VER=5.8.5 install
+  displayName: 'Build toolchain'
+- script: |
+    set -e
+    cd musl-cross-make
+    tar -czf ${{ parameters.pkg }}.tar.gz output
+  displayName: 'Create pipeline asset'
+- publish: musl-cross-make/${{ parameters.pkg }}.tar.gz
+  artifact: ${{ parameters.pkg }}
+  displayName: 'Publish artifact'