Restore GitHub Action to build ALS on AArch64 Linux

with cross-toolchain.

Ref #1387

Author: reznikmm

.github/workflows/build-binaries.yml

@@ -58,12 +58,34 @@ jobs:
           bin/alr index --reset-community
           bin/alr toolchain --select gnat_native^14 gprbuild
           echo $PWD/bin >> $GITHUB_PATH
+      - name: Get cross GNAT toolchain (Linux)
+        if: ${{ runner.os == 'Linux' }}
+        run: |
+            sudo apt install -y libc6-dev-arm64-cross linux-libc-dev-arm64-cross binutils-aarch64-linux-gnu
+            aws s3 cp s3://adacore-gha-tray-eu-west-1/toolchain/aarch64-Linux-gcc-14.2.tar.bz2 . --sse=AES256
+            aws s3 cp s3://adacore-gha-tray-eu-west-1/toolchain/aarch64-Linux-gmp-6.2.1.tar.bz2 . --sse=AES256
+            sudo tar xjf aarch64-Linux-gcc-14.2.tar.bz2  -C /
+            sudo tar xjf aarch64-Linux-gmp-6.2.1.tar.bz2 -C /
       - name: Build
         shell: bash
         run: |
           alr settings --global --set dependencies.shared false
           pip3 install e3-testsuite
           scripts/build_als.sh all "$TAG"
+      - name: Build ALS with cross (Linux)
+        if: ${{ runner.os == 'Linux' }}
+        run: |
+          if alr exec -- gprconfig --show-targets | grep aarch64-linux; then
+            export GPRBUILD_EXTRA=--target=aarch64-linux
+            export NODE_ARCH_PLATFORM=arm64/linux
+            find . -name '*.ali' -delete
+            find . -name '*.[ao]' -delete
+            scripts/build_als.sh build_als   "$TAG" arm64/linux
+            scripts/build_als.sh strip_debug "$TAG" arm64/linux
+          else
+            echo "No AArch64 cross compiler found:"
+            alr exec -- gprconfig --show-targets || true
+          fi
       - name: Archive ALS binary
         uses: actions/upload-artifact@v4
         with:
@@ -80,6 +102,9 @@ jobs:
         if: ${{ env.TAG != env.DEFAULT_TAG }}
         run: |
           .github/workflows/release.sh "${{ secrets.GITHUB_TOKEN }}" $TAG ""
+          if [ -f integration/vscode/ada/arm64/linux/ada_language_server ] ; then
+            .github/workflows/release.sh "${{ secrets.GITHUB_TOKEN }}" $TAG arm64/linux
+          fi
       - name: Package
         shell: bash
         run: |

Makefile

@@ -37,7 +37,7 @@ TESTER=$(ROOTDIR)/.obj/tester/tester-run$(EXE)
 # Env variable to set for update VS Code test references
 MOCHA_ALS_UPDATE=
 
-GPRBUILD_EXTRA=
+GPRBUILD_EXTRA ?=
 GPRBUILD_FLAGS=-m -j$(PROCESSORS) $(GPRBUILD_EXTRA)
 GPRBUILD=gprbuild $(GPRBUILD_FLAGS) -XSUPERPROJECT=
 GPRCLEAN_EXTRA=
@@ -70,6 +70,7 @@ else
    # Code Ada extension.
    NODE_ARCH=$(shell node -e "console.log(process.arch)")
    NODE_PLATFORM=$(shell node -e "console.log(process.platform)")
+   NODE_ARCH_PLATFORM ?= $(NODE_ARCH)/$(NODE_PLATFORM)
 endif
 
 VSCE=npx vsce
@@ -112,8 +113,8 @@ endif
 	$(GPRBUILD) -P gnat/tester.gpr -p $(BUILD_FLAGS)
 	$(GPRBUILD) -P gnat/lsp_client.gpr -p $(COVERAGE_BUILD_FLAGS)
 ifdef NODE
-	mkdir -p integration/vscode/ada/$(NODE_ARCH)/$(NODE_PLATFORM)
-	cp -v -f $(ALS) integration/vscode/ada/$(NODE_ARCH)/$(NODE_PLATFORM)
+	mkdir -p integration/vscode/ada/$(NODE_ARCH_PLATFORM)
+	cp -v -f $(ALS) integration/vscode/ada/$(NODE_ARCH_PLATFORM)
 endif
 
 generate:
@@ -150,7 +151,7 @@ clean:
 	-$(GPRCLEAN) -P gnat/lsp_3_17.gpr $(LIBRARY_FLAGS)
 	-$(GPRCLEAN) -P gnat/lsp_server.gpr $(LIBRARY_FLAGS)
 	-$(GPRCLEAN) -P gnat/tester.gpr $(LIBRARY_FLAGS)
-	-rm -rf integration/vscode/ada/$(NODE_ARCH)/$(NODE_PLATFORM)
+	-rm -rf integration/vscode/ada/$(NODE_ARCH_PLATFORM)
 
 vscode:
 ifneq ($(npm_config_offline),true)

scripts/build_als.sh

@@ -208,6 +208,10 @@ function strip_debug() {
       # system (or by XCode).
       dsymutil "$ALS"
       strip "$ALS"
+   elif [[ $NODE_ARCH_PLATFORM == "arm64/linux" ]]; then
+      aarch64-linux-gnu-objcopy --only-keep-debug ${ALS} ${ALS}.debug
+      aarch64-linux-gnu-objcopy --strip-all ${ALS}
+      aarch64-linux-gnu-objcopy --add-gnu-debuglink=${ALS}.debug ${ALS}
    else
       objcopy --only-keep-debug ${ALS} ${ALS}.debug
       objcopy --strip-all ${ALS}

subprojects/libgpr2.toml

@@ -37,7 +37,7 @@ command = [
 
 [[actions]]
 type = "pre-build"
-command = ["bash", "-c", "-x", "make setup build-lib-${LIBRARY_TYPE:-static} GPR2KBDIR=./gprconfig_kb/db"]
+command = ["make", "setup", ".build/kb/gpr2-kb-embedded.ads", ".build/kb/gpr2-kb-embedded.adb", "GPR2KBDIR=./gprconfig_kb/db"]
 
 [[depends-on]]
 gnatcoll = "~24.0.0"