Migrate Linux-aarch64 CI from Travis to Cirrus CI

As Travis seems non-operational, at least since yesterday.

.cirrus.yml

@@ -1,6 +1,6 @@
 # Installs lit, clones the git submodules, builds LDC and the test
 # runners and runs the tests.
-# Requires env variables CI_OS, EXTRA_CMAKE_FLAGS and PARALLELISM.
+# Requires env variables CI_ARCH, CI_OS, EXTRA_CMAKE_FLAGS and PARALLELISM.
 common_steps_template: &COMMON_STEPS_TEMPLATE
   install_lit_script: |
     # Install lit
@@ -35,6 +35,13 @@ common_steps_template: &COMMON_STEPS_TEMPLATE
       ctest --output-on-failure -R ldc2-unittest
     run_lit_testsuite_script: |
       cd $CIRRUS_WORKING_DIR/../build/tests
+      if [[ "$CI_OS-$CI_ARCH" == "linux-aarch64" ]]; then
+        # FIXME: the following tests fail
+        rm $CIRRUS_WORKING_DIR/tests/debuginfo/nested_gdb.d
+        rm $CIRRUS_WORKING_DIR/tests/sanitizers/fuzz_basic.d
+        # the following 2 have regressed with LLVM 13
+        rm $CIRRUS_WORKING_DIR/tests/sanitizers/msan_{noerror,uninitialized}.d
+      fi
       python3 runlit.py -v -j $PARALLELISM .
     run_dmd_testsuite_script: |
       cd $CIRRUS_WORKING_DIR/../build
@@ -43,14 +50,23 @@ common_steps_template: &COMMON_STEPS_TEMPLATE
       # Run defaultlib unittests & druntime integration tests
       cd $CIRRUS_WORKING_DIR/../build
       excludes="dmd-testsuite|ldc2-unittest|lit-tests"
-      # FIXME: unittest failure for unclear reason
-      if [ "$CI_OS" == "freebsd" ]; then
+      if [[ "$CI_OS" == "freebsd" ]]; then
+        # FIXME: unittest failure for unclear reason
         excludes+='|^std.experimental.allocator-shared$'
+      elif [[ "$CI_OS-$CI_ARCH" == "linux-aarch64" ]]; then
+        # FIXME: segfaults with enabled optimizations
+        excludes+='|^core.thread.fiber(-shared)?$'
+        # FIXME: failing unittest(s)
+        excludes+='|^std.internal.math.gammafunction'
+        # FIXME: failing unittest(s) with enabled optimizations
+        excludes+='|^std.math.exponential(-shared)?$'
+        # FIXME: failure
+        excludes+='|^druntime-test-exceptions-debug$'
       fi
       ctest -j$PARALLELISM --output-on-failure -E "$excludes"
 
 # Performs the extra packaging steps for jobs producing a prebuilt package.
-# Requires env variables CI_OS and GITHUB_TOKEN (and CC for FreeBSD).
+# Requires env variables CI_ARCH, CI_OS, GITHUB_TOKEN and PARALLELISM (and CC for FreeBSD).
 packaging_steps_template: &PACKAGING_STEPS_TEMPLATE
   # Install LDC & make portable
   install_script: |
@@ -70,8 +86,8 @@ packaging_steps_template: &PACKAGING_STEPS_TEMPLATE
   run_shared_libs_integration_test_script: |
     cd $CIRRUS_WORKING_DIR/..
     echo 'void main() { import std.stdio; writefln("Hello world, %d bits", size_t.sizeof * 8); }' > hello.d
-    installed/bin/ldc2 hello.d -m64 -of=hello64 -link-defaultlib-shared
-    ./hello64
+    installed/bin/ldc2 hello.d -of=hello -link-defaultlib-shared
+    ./hello
   # Run hello-world integration test with LTO
   run_lto_integration_test_script: |
     cd $CIRRUS_WORKING_DIR/..
@@ -82,7 +98,10 @@ packaging_steps_template: &PACKAGING_STEPS_TEMPLATE
   # Run dynamic-compile integration test
   run_dynamic_compile_integration_test_script: |
     cd $CIRRUS_WORKING_DIR/..
-    installed/bin/ldc2 -enable-dynamic-compile -run $CIRRUS_WORKING_DIR/tests/dynamiccompile/array.d
+    # FIXME: disabled since LLVM 12, needs https://github.com/ldc-developers/ldc/pull/3184
+    if [[ "$CI_OS" == "freebsd" ]]; then
+      installed/bin/ldc2 -enable-dynamic-compile -run $CIRRUS_WORKING_DIR/tests/dynamiccompile/array.d
+    fi
   # Run ImportC integration test
   run_importC_integration_test_script: |
     cd $CIRRUS_WORKING_DIR/..
@@ -127,10 +146,15 @@ packaging_steps_template: &PACKAGING_STEPS_TEMPLATE
     else
       artifactID=${CIRRUS_CHANGE_IN_REPO:0:8}
     fi
-    artifactName=ldc2-$artifactID-$CI_OS-x86_64
+    artifactName=ldc2-$artifactID-$CI_OS-$CI_ARCH
     mv installed $artifactName
     chmod -R go=rX $artifactName
-    gtar -cf - --owner=0 --group=0 $artifactName | 7z a artifacts/$artifactName.tar.xz -si -txz -mx9
+    tar=tar
+    if [[ "$CI_OS" == "freebsd" ]]; then
+      tar=gtar
+    fi
+    $tar -cf - --owner=0 --group=0 $artifactName | 7z a artifacts/$artifactName.tar.xz -si -txz -mx9 -mmt$PARALLELISM
+    ls -lh artifacts/ldc2-*.tar.xz
   # Upload to GitHub release (only for commits on the master branch and tags)
   upload_to_github_script: |
     cd $CIRRUS_WORKING_DIR
@@ -141,7 +165,7 @@ packaging_steps_template: &PACKAGING_STEPS_TEMPLATE
     fi
 
 # Installs Ubuntu 18.04+ prerequisites.
-# Requires env variables HOST_LDC_VERSION, EXTRA_APT_PACKAGES and EXTRA_CMAKE_FLAGS.
+# Requires env variables CI_ARCH, HOST_LDC_VERSION, EXTRA_APT_PACKAGES and EXTRA_CMAKE_FLAGS.
 install_ubuntu_prerequisites_template: &INSTALL_UBUNTU_PREREQUISITES_TEMPLATE
   install_prerequisites_script: |
     cd $CIRRUS_WORKING_DIR/..
@@ -162,7 +186,7 @@ install_ubuntu_prerequisites_template: &INSTALL_UBUNTU_PREREQUISITES_TEMPLATE
       $EXTRA_APT_PACKAGES
     python3 --version
     # Download & extract host LDC
-    curl -fL --retry 3 --max-time 300 -o ldc2.tar.xz https://github.com/ldc-developers/ldc/releases/download/v$HOST_LDC_VERSION/ldc2-$HOST_LDC_VERSION-linux-x86_64.tar.xz
+    curl -fL --retry 3 --max-time 300 -o ldc2.tar.xz https://github.com/ldc-developers/ldc/releases/download/v$HOST_LDC_VERSION/ldc2-$HOST_LDC_VERSION-linux-$CI_ARCH.tar.xz
     mkdir host-ldc
     tar -xf ldc2.tar.xz --strip 1 -C host-ldc
     rm ldc2.tar.xz
@@ -205,6 +229,7 @@ install_macos_prerequisites_template: &INSTALL_MACOS_PREREQUISITES_TEMPLATE
 environment:
   CIRRUS_CLONE_DEPTH: 50
   HOST_LDC_VERSION: 1.24.0
+  GITHUB_TOKEN: ENCRYPTED[0955bd48c8d4e5391446fc0149d0719ad0b63df27ec9e6c180a5730a5b10dc7f28f09d1383423db158d21380ee2b022a]
 
 task:
   name: Ubuntu 18.04 x64 multilib rtSanitizers
@@ -214,6 +239,7 @@ task:
     memory: 16G
   timeout_in: 20m
   environment:
+    CI_ARCH: x86_64
     CI_OS: linux
     EXTRA_APT_PACKAGES: "llvm-9-dev libclang-common-9-dev"
     EXTRA_CMAKE_FLAGS: "-DMULTILIB=ON -DRT_SUPPORT_SANITIZERS=ON -DBUILD_LTO_LIBS=ON"
@@ -231,6 +257,7 @@ task:
     memory: 16G
   timeout_in: 15m
   environment:
+    CI_ARCH: x86_64
     CI_OS: linux
     EXTRA_APT_PACKAGES: "gdmd llvm-dev libclang-common-15-dev"
     EXTRA_CMAKE_FLAGS: "-DBUILD_SHARED_LIBS=ON -DBUILD_LTO_LIBS=ON -DD_COMPILER=gdmd -DLDC_LINK_MANUALLY=ON"
@@ -248,6 +275,7 @@ task:
     memory: 16G
   timeout_in: 15m
   environment:
+    CI_ARCH: x86_64
     CI_OS: linux
     HOST_LDC_VERSION: 1.9.0
     EXTRA_APT_PACKAGES: "llvm-9-dev libclang-common-9-dev"
@@ -290,6 +318,75 @@ task:
   << : *INSTALL_MACOS_PREREQUISITES_TEMPLATE
   << : *COMMON_STEPS_TEMPLATE
 
+task:
+  name: Ubuntu 18.04 aarch64
+  arm_container:
+    image: ubuntu:18.04
+    cpu: 4
+    memory: 8G
+  timeout_in: 60m
+  environment:
+    CI_ARCH: aarch64
+    CI_OS: linux
+    EXTRA_APT_PACKAGES: libxml2-dev p7zip-full
+    EXTRA_CMAKE_FLAGS: >-
+      -DBUILD_LTO_LIBS=ON
+      -DD_COMPILER_FLAGS="-O -flto=full -defaultlib=phobos2-ldc-lto,druntime-ldc-lto"
+      -DEXTRA_CXXFLAGS=-flto=full
+      -DCMAKE_EXE_LINKER_FLAGS=-static-libstdc++
+      -DJITRT_EXTRA_LDFLAGS=-static-libstdc++
+      -DLDC_INSTALL_LLVM_RUNTIME_LIBS_ARCH=aarch64
+      -DLLVM_ROOT_DIR=$CIRRUS_WORKING_DIR/../llvm
+      -DD_COMPILER=$CIRRUS_WORKING_DIR/../bootstrap-ldc/bin/ldmd2
+    PARALLELISM: 4
+    LLVM_VERSION: 14.0.3
+    CLANG_VERSION: 14.0.0
+    CC: $CIRRUS_WORKING_DIR/../clang/bin/clang
+    CXX: $CIRRUS_WORKING_DIR/../clang/bin/clang++
+  << : *INSTALL_UBUNTU_PREREQUISITES_TEMPLATE
+  # Download & extract LDC-flavoured LLVM
+  download_prebuilt_llvm_script: |
+    cd $CIRRUS_WORKING_DIR/..
+    assertsSuffix=""
+    if [[ "${CIRRUS_TAG:-}" == "" ]]; then
+      echo 'Using LLVM with enabled assertions'
+      assertsSuffix="-withAsserts"
+    fi
+    llvm_tag="CI"
+    if [[ "$LLVM_VERSION" = *.* ]]; then llvm_tag="ldc-v$LLVM_VERSION"; fi
+    llvm_url="https://github.com/ldc-developers/llvm-project/releases/download/$llvm_tag/llvm-$LLVM_VERSION-linux-$CI_ARCH$assertsSuffix.tar.xz"
+    curl -fL --retry 3 --max-time 300 -o llvm.tar.xz $llvm_url
+    mkdir -p llvm
+    tar -xf llvm.tar.xz --strip 1 -C llvm
+    rm llvm.tar.xz
+    # Make lld the default linker (possibly with enabled assertions unfortunately)
+    ln -sf "$PWD/llvm/bin/ld.lld" /usr/bin/ld
+  # Download & extract clang
+  download_prebuilt_clang_script: |
+    cd $CIRRUS_WORKING_DIR/..
+    curl -fL --retry 3 --max-time 300 -o clang.tar.xz https://github.com/llvm/llvm-project/releases/download/llvmorg-$CLANG_VERSION/clang+llvm-$CLANG_VERSION-$CI_ARCH-linux-gnu.tar.xz
+    mkdir clang
+    tar -xf clang.tar.xz --strip 1 -C clang
+    rm clang.tar.xz
+  clone_submodules_early_script: |
+    cd $CIRRUS_WORKING_DIR
+    git submodule update --init --depth $CIRRUS_CLONE_DEPTH
+  # Build a first LDC as host compiler for the actual build
+  build_bootstrap_ldc_script: |
+    cd $CIRRUS_WORKING_DIR/..
+    mkdir bootstrap-ldc
+    cd bootstrap-ldc
+    cmake -G Ninja $CIRRUS_WORKING_DIR \
+      -DCMAKE_BUILD_TYPE=Release \
+      -DLLVM_ROOT_DIR=$PWD/../llvm \
+      -DD_COMPILER=$PWD/../host-ldc/bin/ldmd2 \
+      -DBUILD_SHARED_LIBS=OFF \
+      -DBUILD_LTO_LIBS=ON
+    ninja -j$PARALLELISM
+    bin/ldc2 -version
+  << : *COMMON_STEPS_TEMPLATE
+  << : *PACKAGING_STEPS_TEMPLATE
+
 task:
   name: FreeBSD 12.2 x64
   freebsd_instance:
@@ -298,10 +395,13 @@ task:
     memory: 8G
   timeout_in: 60m
   environment:
+    CI_ARCH: x86_64
     CI_OS: freebsd
-    EXTRA_CMAKE_FLAGS: -DBUILD_LTO_LIBS=ON -DD_COMPILER_FLAGS="-O -flto=full -defaultlib=phobos2-ldc-lto,druntime-ldc-lto" -DEXTRA_CXXFLAGS=-flto=full
+    EXTRA_CMAKE_FLAGS: >-
+      -DBUILD_LTO_LIBS=ON
+      -DD_COMPILER_FLAGS="-O -flto=full -defaultlib=phobos2-ldc-lto,druntime-ldc-lto"
+      -DEXTRA_CXXFLAGS=-flto=full
     PARALLELISM: 4
-    GITHUB_TOKEN: ENCRYPTED[0955bd48c8d4e5391446fc0149d0719ad0b63df27ec9e6c180a5730a5b10dc7f28f09d1383423db158d21380ee2b022a]
     # use clang from the `llvm` ports package to be installed, incl. lld support for .deplibs (`pragma(lib, "execinfo")`)
     CC: clang90
   install_prerequisites_script: |
@@ -311,7 +411,7 @@ task:
     python3 --version
     python3 -m ensurepip
     # Download & extract host LDC
-    curl -fL --retry 3 --max-time 300 -o ldc2.tar.xz https://github.com/ldc-developers/ldc/releases/download/v$HOST_LDC_VERSION/ldc2-$HOST_LDC_VERSION-freebsd-x86_64.tar.xz
+    curl -fL --retry 3 --max-time 300 -o ldc2.tar.xz https://github.com/ldc-developers/ldc/releases/download/v$HOST_LDC_VERSION/ldc2-$HOST_LDC_VERSION-freebsd-$CI_ARCH.tar.xz
     mkdir pre-ldc
     gtar -xf ldc2.tar.xz --strip 1 -C pre-ldc
   clone_submodules_early_script: |

.gitattributes

@@ -2,5 +2,4 @@
 *.sh  eol=lf
 
 .gitattributes export-ignore
-.travis.yml export-ignore
 CHANGELOG.md text merge=union

.github/actions/upload-to-github/action.yml

@@ -46,7 +46,7 @@ runs:
         ls -lh
 
         # Extend by existing release artifacts *missing* from GitHub workflow,
-        # e.g., artifacts published by Travis/Cirrus CI etc.
+        # e.g., artifacts published by Cirrus CI etc.
         # (They will be re-uploaded in the next step.)
         if [[ -d ../existing-artifacts ]]; then
           mv -n ../existing-artifacts/*.* ./