Update build workflow to include fault detection and logging

This revision modifies the GitHub Actions CI workflow for better failure diagnostics. It includes a timeout to the 'Run demo' step and a new step added to check for segmentation faults. It also modifies failure conditions ensuring core dumps, logs, and stderr are always displayed and uploaded as artifacts. This will greatly assist in diagnosing build issues when they occur.

.github/workflows/build.yml

@@ -25,8 +25,8 @@ jobs:
 
       - name: Enable core dumps
         run: |
+          sudo sysctl -w kernel.core_pattern=/tmp/core-%e.%p
           ulimit -c unlimited
-          echo '/tmp/core-%e.%p' | sudo tee /proc/sys/kernel/core_pattern
 
       - name: Set PHP error logging
         run: |
@@ -62,16 +62,24 @@ jobs:
       - name: Run demo
         run: |
           php -d extension=./modules/rayaop.so -i | grep rayaop
-          php -d extension=./modules/rayaop.so -d memory_limit=128M -d report_memleaks=1 -d zend.assertions=1 -d assert.exception=1 rayaop.php 2> php_stderr.log
-        continue-on-error: true
+          timeout 60s php -d extension=./modules/rayaop.so -d memory_limit=128M -d report_memleaks=1 -d zend.assertions=1 -d assert.exception=1 rayaop.php 2> php_stderr.log || true
+
+      - name: Check for segmentation fault
+        run: |
+          if grep -q "Segmentation fault" php_stderr.log; then
+            echo "Segmentation fault detected"
+            cat php_stderr.log
+          elif dmesg | grep -q "segfault"; then
+            echo "Segmentation fault detected in kernel logs"
+            dmesg | tail -n 20
+          else
+            echo "No segmentation fault detected"
+          fi
+        if: always()
 
       - name: Display PHP error log
         run: cat /tmp/php_errors.log
-        if: failure()
-
-      - name: Display stderr output
-        run: cat php_stderr.log
-        if: failure()
+        if: always()
 
       - name: Check for core dump
         run: |
@@ -81,4 +89,29 @@ jobs:
           else
             echo "No core dump found"
           fi
-        if: failure()
+        if: always()
+
+      - name: Display core dump
+        run: |
+          for corefile in /tmp/core-*; do
+            echo "Processing core dump: $corefile"
+            gdb -q -c "$corefile" php -ex "thread apply all bt full" -ex "quit"
+          done
+        if: always()
+
+      - name: Upload core dump
+        uses: actions/upload-artifact@v2
+        with:
+          name: core-dumps
+          path: /tmp/core-*
+        if: always()
+
+      - name: Upload logs as artifacts
+        uses: actions/upload-artifact@v2
+        with:
+          name: debug-logs
+          path: |
+            /tmp/php_errors.log
+            php_stderr.log
+          if-no-files-found: warn
+        if: always()