[PULL 5/5] tests: Gently exit from GDB when tests complete

["Philippe Mathieu-Daudé" <philmd@linaro.org>]

From: Gustavo Romero <gustavo.romero@linaro.org>

GDB commit a207f6b3a38 ('Rewrite "python" command exception handling')
changed how exit() called from Python scripts loaded by GDB behave,
turning it into an exception instead of a generic error code that is
returned. This change caused several QEMU tests to crash with the
following exception:

Python Exception <class 'SystemExit'>: 0
Error occurred in Python: 0

This happens because in tests/guest-debug/test_gdbstub.py exit is
called after the tests have completed.

This commit fixes it by politely asking GDB to exit via gdb.execute,
passing the proper fail_count to be reported to 'make', instead of
abruptly calling exit() from the Python script.

Signed-off-by: Gustavo Romero <gustavo.romero@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240515173132.2462201-4-gustavo.romero@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 tests/guest-debug/test_gdbstub.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/guest-debug/test_gdbstub.py b/tests/guest-debug/test_gdbstub.py
index 7f71d34da1..46fbf98f0c 100644
--- a/tests/guest-debug/test_gdbstub.py
+++ b/tests/guest-debug/test_gdbstub.py
@@ -57,4 +57,4 @@ def main(test, expected_arch=None):
         pass
 
     print("All tests complete: {} failures".format(fail_count))
-    exit(fail_count)
+    gdb.execute(f"exit {fail_count}")
-- 
2.41.0