llvm-project/lldb/test/functionalities/inferior-crashing/TestInferiorCrashing.py

81 lines
2.8 KiB
Python

"""Test that lldb reliably catches the inferior crashing."""
import os, time
import unittest2
import lldb
from lldbtest import *
class CrashingInferiorTestCase(TestBase):
mydir = os.path.join("functionalities", "inferior-crashing")
@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
def test_inferior_crashing_dsym(self):
"""Test that lldb reliably catches the inferior crashing (command)."""
self.buildDsym()
self.inferior_crashing()
def test_inferior_crashing_dwarf(self):
"""Test that lldb reliably catches the inferior crashing (command)."""
self.buildDwarf()
self.inferior_crashing()
@python_api_test
def test_inferior_crashing_python(self):
"""Test that lldb reliably catches the inferior crashing (Python API)."""
self.buildDefault()
self.inferior_crashing_python()
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line number of the crash.
self.line = line_number('main.c', '// Crash here.')
def inferior_crashing(self):
"""Inferior crashes upon launching; lldb should catch the event and stop."""
exe = os.path.join(os.getcwd(), "a.out")
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
self.runCmd("run", RUN_SUCCEEDED)
# The stop reason of the thread should be a bad access exception.
self.expect("thread list", STOPPED_DUE_TO_EXC_BAD_ACCESS,
substrs = ['stopped',
'stop reason = EXC_BAD_ACCESS'])
# And it should report the correct line number.
self.expect("thread backtrace all",
substrs = ['stop reason = EXC_BAD_ACCESS',
'main.c:%d' % self.line])
def inferior_crashing_python(self):
"""Inferior crashes upon launching; lldb should catch the event and stop."""
exe = os.path.join(os.getcwd(), "a.out")
target = self.dbg.CreateTarget(exe)
self.assertTrue(target, VALID_TARGET)
# Now launch the process, and do not stop at entry point.
# Both argv and envp are null.
process = target.LaunchSimple(None, None, os.getcwd())
import lldbutil
if process.GetState() != lldb.eStateStopped:
self.fail("Process should be in the 'stopped' state, "
"instead the actual state is: '%s'" %
lldbutil.state_type_to_str(process.GetState()))
thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonException)
if not thread:
self.fail("Fail to stop the thread upon bad access exception")
if self.TraceOn():
lldbutil.print_stacktrace(thread)
if __name__ == '__main__':
import atexit
lldb.SBDebugger.Initialize()
atexit.register(lambda: lldb.SBDebugger.Terminate())
unittest2.main()