Check for error messages from FVP stdout

Add check of the stdout log from FVP for ^[EF][ :] that indicates
error or fatal log messages.

Signed-off-by: Per Åstrand <[email protected]>
Change-Id: I8c6869706254d680f6ce8445626552b2f57e6fe6

Author: per

backends/arm/test/runner_utils.py

@@ -6,6 +6,7 @@
 import json
 import logging
 import os
+import re
 import shutil
 import subprocess
 import tempfile
@@ -262,7 +263,12 @@ def run_corstone300(
         ]
         result = _run_cmd(command_args, check=False)
         result_stdout = result.stdout.decode()
-        if "Hard fault" in result_stdout or len(result.stderr) > 0:
+
+        error_regex = r"(^[EF][: ].*$)|(^.*Hard fault.*$)|(^.*Assertion.*$)"
+
+        # Check for errors in the output
+        # regex to check for error or fault messages in stdout from FVP
+        if re.compile(error_regex, re.MULTILINE).search(result_stdout):
             raise RuntimeError(
                 f"Corstone simulation failed, log: \n {result_stdout}\n{result.stderr.decode()}"
             )