Update some CI jobs

* Move ThreadSanitizer job to the scheduled jobs (once a day): all out tests
  are intrinsically mono-thread and this job takes quite some time

* Two explicit jobs to test LTO and Gold linker, used by oss-fuzz

.github/workflows/build.yml

@@ -66,6 +66,48 @@ jobs:
           git update-index --refresh || echo "::warning file=utils/update_every_lists.sh::Please re-run utils/update_every_lists.sh and commit any changes."
           git diff-index --quiet HEAD -- || true
 
+  test-lto-gold:
+    # Options used by oss-fuzz: we only want to check that everything compile fine; no need to run the tests
+    name: LTO and Gold Linker (ubuntu-24.04): ${{ matrix.compiler }}
+    runs-on: ubuntu-24.04
+    env:
+      CC: ${{ matrix.compiler }}
+      CFLAGS: -Wextra -Werror -DNDPI_EXTENDED_SANITY_CHECKS
+    strategy:
+      fail-fast: true
+      matrix:
+        compiler: ["gcc-14", "clang-18"] # "Newest" gcc/clang easily available
+        ar: ["ar"]
+        ranlib: ["ranlib"]
+        msan: [""]
+        lto_gold_linker: [""]
+        include:
+          - compiler: "gcc-14"
+            ar: "ar"
+            ranlib: "ranlib"
+          - compiler: "clang-18"
+            ar: "llvm-ar-18"
+            ranlib: "llvm-ranlib-18"
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0  # Shallow clones should be disabled for a better relevancy of analysis
+      - name: Install Ubuntu Prerequisites
+        run: |
+          sudo apt-get update
+          sudo apt-get install autoconf automake debhelper libtool pkg-config gettext libjson-c-dev flex bison libpcap-dev rrdtool librrd-dev parallel
+      - name: Configure nDPI
+        run: |
+          AR=${{ matrix.ar }} RANLIB=${{ matrix.ranlib }} ./autogen.sh --enable-option-checking=fatal --enable-debug-messages --with-sanitizer --with-lto-and-gold-linker
+      - name: Build nDPI
+        run: |
+          make -j $(nproc) all
+          make -C example ndpiSimpleIntegration
+          make -C rrdtool
+      - name: Print nDPI long help
+        run: |
+          cd ./example && ./ndpiReader -H
+
   test:
     name: ${{ matrix.os }} ${{ matrix.arch }} ${{ matrix.gcrypt }} ${{ matrix.compiler }} ${{ matrix.pcre }} ${{ matrix.maxminddb }} ${{ matrix.msan }} ${{ matrix.nBPF }} ${{matrix.lto_gold_linker}} ${{matrix.global_context}}
     runs-on: ${{ matrix.os }}
@@ -126,14 +168,6 @@ jobs:
             msan: "--with-sanitizer"
             nBPF: ""
             lto_gold_linker: "--with-lto-and-gold-linker"
-          - compiler: "cc"
-            os: ubuntu-latest
-            arch: "x86_64"
-            gcrypt: ""
-            pcre: "--with-pcre2"
-            maxminddb: "--with-maxminddb"
-            msan: "--with-thread-sanitizer"
-            nBPF: ""
           - compiler: "cc"
             os: ubuntu-latest
             arch: "x86_64"

.github/workflows/build_scheduled.yml

@@ -109,3 +109,28 @@ jobs:
           name: ndpi-performance
           path: ndpi-performance-upload
           retention-days: 7
+
+  threadsanitizer:
+    name: Thread Sanitizer (ubuntu-latest)
+    runs-on: ubuntu-latest
+    env:
+      CFLAGS: -Wextra -Werror
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Install Ubuntu Prerequisites
+        run: |
+          sudo apt-get update
+          sudo apt-get install autoconf automake libtool pkg-config gettext flex bison libjson-c libpcap-dev rrdtool librrd-dev parallel
+      - name: Configure nDPI
+        run: |
+          ./autogen.sh --enable-option-checking=fatal --with-thread-sanitizer
+      - name: Build nDPI
+        run: |
+          make -j $(nproc) all
+          make -C example ndpiSimpleIntegration
+          make -C rrdtool
+      - name: Tests
+        run: |
+          NDPI_FORCE_PARALLEL_UTESTS=1 NDPI_SKIP_PARALLEL_BAR=1 ./tests/do.sh