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# Copyright (c) Meta Platforms, Inc. and affiliates.
# SPDX-License-Identifier: LGPL-2.1-or-later
from pathlib import Path
import unittest
import drgn
from tests import TestCase
from tests.linux_kernel import LinuxKernelTestCase
VMCORE_PATH = Path("/proc/vmcore")
@unittest.skipUnless(VMCORE_PATH.exists(), "not running in kdump")
class LinuxVMCoreTestCase(TestCase):
prog = None
@classmethod
def setUpClass(cls):
super().setUpClass()
# We only want to create the Program once for all tests, so it's cached
# as a class variable (in the base class).
if LinuxVMCoreTestCase.prog is None:
prog = drgn.Program()
prog.set_core_dump(VMCORE_PATH)
LinuxKernelTestCase._load_debug_info(prog)
LinuxVMCoreTestCase.prog = prog
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