| import os |
| import struct |
| import subprocess |
| |
| import lldb |
| from lldbsuite.test.decorators import * |
| from lldbsuite.test.lldbtest import * |
| from lldbsuite.test import lldbutil |
| |
| |
| class FreeBSDKernelVMCoreTestCase(TestBase): |
| NO_DEBUG_INFO_TESTCASE = True |
| |
| def test_mem(self): |
| kernel_exec = "/boot/kernel/kernel" |
| mem_device = "/dev/mem" |
| |
| if not os.access(kernel_exec, os.R_OK): |
| self.skipTest("Kernel @ %s is not readable" % (kernel_exec,)) |
| if not os.access(mem_device, os.R_OK): |
| self.skipTest("Memory @ %s is not readable" % (mem_device,)) |
| |
| target = self.dbg.CreateTarget(kernel_exec) |
| process = target.LoadCore(mem_device) |
| hz_value = int(subprocess.check_output(["sysctl", "-n", "kern.hz"])) |
| |
| self.assertTrue(process, PROCESS_IS_VALID) |
| self.assertEqual(process.GetNumThreads(), 1) |
| self.assertEqual(process.GetProcessID(), 0) |
| |
| # test memory reading |
| self.expect("expr -- *(int *) &hz", substrs=["(int) $0 = %d" % hz_value]) |
| |
| main_mod = target.GetModuleAtIndex(0) |
| hz_addr = main_mod.FindSymbols("hz")[0].symbol.addr.GetLoadAddress(target) |
| error = lldb.SBError() |
| self.assertEqual( |
| process.ReadMemory(hz_addr, 4, error), struct.pack("<I", hz_value) |
| ) |
| |
| self.dbg.DeleteTarget(target) |