tests/functional: Convert reverse_debugging tests to the functional framework

These tests are using the gdb-related library functions from the
Avocado framework which we don't have in the functional framework
yet. So for the time being, keep those imports and skip the test
if the Avocado framework is not installed on the host.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-ID: <20250414113031.151105-4-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

tests/functional/test_aarch64_reverse_debug.py

@@ -0,0 +1,38 @@
+#!/usr/bin/env python3
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# Reverse debugging test
+#
+# Copyright (c) 2020 ISP RAS
+#
+# Author:
+#  Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru>
+#
+# This work is licensed under the terms of the GNU GPL, version 2 or
+# later.  See the COPYING file in the top-level directory.
+
+from qemu_test import Asset, skipIfMissingImports, skipFlakyTest
+from reverse_debugging import ReverseDebugging
+
+
+@skipIfMissingImports('avocado.utils')
+class ReverseDebugging_AArch64(ReverseDebugging):
+
+    REG_PC = 32
+
+    KERNEL_ASSET = Asset(
+        ('https://archives.fedoraproject.org/pub/archive/fedora/linux/'
+         'releases/29/Everything/aarch64/os/images/pxeboot/vmlinuz'),
+        '7e1430b81c26bdd0da025eeb8fbd77b5dc961da4364af26e771bd39f379cbbf7')
+
+    @skipFlakyTest("https://gitlab.com/qemu-project/qemu/-/issues/2921")
+    def test_aarch64_virt(self):
+        self.set_machine('virt')
+        self.cpu = 'cortex-a53'
+        kernel_path = self.KERNEL_ASSET.fetch()
+        self.reverse_debugging(args=('-kernel', kernel_path))
+
+
+if __name__ == '__main__':
+    ReverseDebugging.main()