artulab.com Git - openbsd/blob

   1 """
   2 Test signal reporting when debugging with linux core files.
   3 """
   4
   5
   6
   7 import lldb
   8 from lldbsuite.test.decorators import *
   9 from lldbsuite.test.lldbtest import *
  10 from lldbsuite.test import lldbutil
  11
  12
  13 class LinuxCoreThreadsTestCase(TestBase):
  14     NO_DEBUG_INFO_TESTCASE = True
  15
  16     mydir = TestBase.compute_mydir(__file__)
  17
  18     def setUp(self):
  19         super(LinuxCoreThreadsTestCase, self).setUp()
  20         self._initial_platform = lldb.DBG.GetSelectedPlatform()
  21
  22     def tearDown(self):
  23         lldb.DBG.SetSelectedPlatform(self._initial_platform)
  24         super(LinuxCoreThreadsTestCase, self).tearDown()
  25
  26     _i386_pid = 5193
  27     _x86_64_pid = 5222
  28
  29     # Thread id for the failing thread.
  30     _i386_tid = 5195
  31     _x86_64_tid = 5250
  32
  33     @skipIf(oslist=['windows'])
  34     @skipIf(triple='^mips')
  35     def test_i386(self):
  36         """Test that lldb can read the process information from an i386 linux core file."""
  37         self.do_test("linux-i386", self._i386_pid, self._i386_tid)
  38
  39     @skipIf(oslist=['windows'])
  40     @skipIf(triple='^mips')
  41     def test_x86_64(self):
  42         """Test that lldb can read the process information from an x86_64 linux core file."""
  43         self.do_test("linux-x86_64", self._x86_64_pid, self._x86_64_tid)
  44
  45     def do_test(self, filename, pid, tid):
  46         target = self.dbg.CreateTarget("")
  47         process = target.LoadCore(filename + ".core")
  48         self.assertTrue(process, PROCESS_IS_VALID)
  49         self.assertEqual(process.GetNumThreads(), 3)
  50         self.assertEqual(process.GetProcessID(), pid)
  51
  52         for thread in process:
  53             # Verify that if we try to read memory from a PT_LOAD that has
  54             # p_filesz of zero that we don't get bytes from the next section
  55             # that actually did have bytes. The addresses below were found by
  56             # dumping the program headers of linux-i386.core and
  57             # linux-x86_64.core and verifying that they had a p_filesz of zero.
  58             mem_err = lldb.SBError()
  59             if process.GetAddressByteSize() == 4:
  60                 bytes_read = process.ReadMemory(0x8048000, 4, mem_err)
  61             else:
  62                 bytes_read = process.ReadMemory(0x400000, 4, mem_err)
  63             self.assertEqual(bytes_read, None)
  64             reason = thread.GetStopReason()
  65             if( thread.GetThreadID() == tid ):
  66                 self.assertEqual(reason, lldb.eStopReasonSignal)
  67                 signal = thread.GetStopReasonDataAtIndex(1)
  68                 # Check we got signal 4 (SIGILL)
  69                 self.assertEqual(signal, 4)
  70             else:
  71                 signal = thread.GetStopReasonDataAtIndex(1)
  72                 # Check we got no signal on the other threads
  73                 self.assertEqual(signal, 0)
  74
  75         self.dbg.DeleteTarget(target)