def step_out_test(self, step_out_func):
"""Test single thread step out of a function."""
(self.inferior_target, self.inferior_process, thread,
bkpt) = lldbutil.run_to_source_breakpoint(self,
self.bkpt_string,
lldb.SBFileSpec('main.cpp'),
only_one_thread=False)
# We hit the breakpoint on at least one thread. If we hit it on both threads
# simultaneously, we can try the step out. Otherwise, suspend the thread
# that hit the breakpoint, and continue till the second thread hits
# the breakpoint:
(breakpoint_threads, other_threads) = ([], [])
lldbutil.sort_stopped_threads(self.inferior_process,
breakpoint_threads=breakpoint_threads,
other_threads=other_threads)
if len(breakpoint_threads) == 1:
success = thread.Suspend()
self.assertTrue(success, "Couldn't suspend a thread")
bkpt_threads = lldbutil.continue_to_breakpoint(bkpt)
self.assertEqual(len(bkpt_threads), 1, "Second thread stopped")
success = thread.Resume()
self.assertTrue(success, "Couldn't resume a thread")
self.step_out_thread = breakpoint_threads[0]
# Step out of thread stopped at breakpoint
step_out_func()
def step_out_test(self, step_out_func):
"""Test single thread step out of a function."""
exe = self.getBuildArtifact("a.out")
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
# This should create a breakpoint in the main thread.
lldbutil.run_break_set_by_file_and_line(self,
"main.cpp",
self.breakpoint,
num_expected_locations=1)
# The breakpoint list should show 1 location.
self.expect(
"breakpoint list -f",
"Breakpoint location shown correctly",
substrs=[
"1: file = 'main.cpp', line = %d, exact_match = 0, locations = 1"
% self.breakpoint
])
# Run the program.
self.runCmd("run", RUN_SUCCEEDED)
# Get the target process
self.inferior_target = self.dbg.GetSelectedTarget()
self.inferior_process = self.inferior_target.GetProcess()
# Get the number of threads, ensure we see all three.
num_threads = self.inferior_process.GetNumThreads()
self.assertEqual(
num_threads, 3,
'Number of expected threads and actual threads do not match.')
(breakpoint_threads, other_threads) = ([], [])
lldbutil.sort_stopped_threads(self.inferior_process,
breakpoint_threads=breakpoint_threads,
other_threads=other_threads)
while len(breakpoint_threads) < 2:
self.runCmd("thread continue %s" %
" ".join([str(x.GetIndexID()) for x in other_threads]))
lldbutil.sort_stopped_threads(
self.inferior_process,
breakpoint_threads=breakpoint_threads,
other_threads=other_threads)
self.step_out_thread = breakpoint_threads[0]
# Step out of thread stopped at breakpoint
step_out_func()
# Run to completion
self.runCmd("continue")
# At this point, the inferior process should have exited.
self.assertTrue(self.inferior_process.GetState() == lldb.eStateExited,
PROCESS_EXITED)
def step_out_test(self, step_out_func):
"""Test single thread step out of a function."""
exe = os.path.join(os.getcwd(), "a.out")
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
# This should create a breakpoint in the main thread.
lldbutil.run_break_set_by_file_and_line(self, "main.cpp", self.breakpoint, num_expected_locations=1)
# The breakpoint list should show 1 location.
self.expect(
"breakpoint list -f",
"Breakpoint location shown correctly",
substrs=["1: file = 'main.cpp', line = %d, exact_match = 0, locations = 1" % self.breakpoint],
)
# Run the program.
self.runCmd("run", RUN_SUCCEEDED)
# Get the target process
self.inferior_target = self.dbg.GetSelectedTarget()
self.inferior_process = self.inferior_target.GetProcess()
# Get the number of threads, ensure we see all three.
num_threads = self.inferior_process.GetNumThreads()
self.assertEqual(num_threads, 3, "Number of expected threads and actual threads do not match.")
(breakpoint_threads, other_threads) = ([], [])
lldbutil.sort_stopped_threads(
self.inferior_process, breakpoint_threads=breakpoint_threads, other_threads=other_threads
)
while len(breakpoint_threads) < 2:
self.runCmd("thread continue %s" % " ".join([str(x.GetIndexID()) for x in other_threads]))
lldbutil.sort_stopped_threads(
self.inferior_process, breakpoint_threads=breakpoint_threads, other_threads=other_threads
)
self.step_out_thread = breakpoint_threads[0]
# Step out of thread stopped at breakpoint
step_out_func()
# Run to completion
self.runCmd("continue")
# At this point, the inferior process should have exited.
self.assertTrue(self.inferior_process.GetState() == lldb.eStateExited, PROCESS_EXITED)
def test_thread_backtrace_one_thread(self):
self.build()
(self.inferior_target, self.process, thread,
bkpt) = lldbutil.run_to_source_breakpoint(self,
self.bkpt_string,
lldb.SBFileSpec('main.cpp'),
only_one_thread=False)
# We hit the breakpoint on at least one thread. If we hit it on both threads
# simultaneously, we are ready to run our tests. Otherwise, suspend the thread
# that hit the breakpoint, and continue till the second thread hits
# the breakpoint:
(breakpoint_threads, other_threads) = ([], [])
lldbutil.sort_stopped_threads(self.process,
breakpoint_threads=breakpoint_threads,
other_threads=other_threads)
self.assertGreater(len(breakpoint_threads), 0,
"We hit at least one breakpoint thread")
self.assertGreater(len(breakpoint_threads[0].frames), 2, "I can go up")
thread_id = breakpoint_threads[0].idx
name = breakpoint_threads[0].frame[1].name.split("(")[0]
self.check_one_thread(thread_id, name)
def test_thread_backtrace_two_threads(self):
"""Test that repeat works even when backtracing on more than one thread."""
self.build()
(self.inferior_target, self.process, thread,
bkpt) = lldbutil.run_to_source_breakpoint(self,
self.bkpt_string,
lldb.SBFileSpec('main.cpp'),
only_one_thread=False)
# We hit the breakpoint on at least one thread. If we hit it on both threads
# simultaneously, we are ready to run our tests. Otherwise, suspend the thread
# that hit the breakpoint, and continue till the second thread hits
# the breakpoint:
(breakpoint_threads, other_threads) = ([], [])
lldbutil.sort_stopped_threads(self.process,
breakpoint_threads=breakpoint_threads,
other_threads=other_threads)
if len(breakpoint_threads) == 1:
success = thread.Suspend()
self.assertTrue(success, "Couldn't suspend a thread")
breakpoint_threads = lldbutil.continue_to_breakpoint(
self.process, bkpt)
self.assertEqual(len(breakpoint_threads), 2,
"Second thread stopped")
# Figure out which thread is which:
thread_id_1 = breakpoint_threads[0].idx
self.assertGreater(len(breakpoint_threads[0].frames), 2, "I can go up")
name_1 = breakpoint_threads[0].frame[1].name.split("(")[0]
thread_id_2 = breakpoint_threads[1].idx
self.assertGreater(len(breakpoint_threads[1].frames), 2, "I can go up")
name_2 = breakpoint_threads[1].frame[1].name.split("(")[0]
# Check that backtrace and repeat works on one thread, then works on the second
# when we switch to it:
self.check_one_thread(thread_id_1, name_1)
self.check_one_thread(thread_id_2, name_2)
# The output is looking right at this point, let's just do a couple more quick checks
# to see we handle two threads and a start count:
interp = self.dbg.GetCommandInterpreter()
result = lldb.SBCommandReturnObject()
interp.HandleCommand(
"thread backtrace --count 10 --start 10 {0} {1}".format(
thread_id_1, thread_id_2), result, True)
self.assertTrue(result.Succeeded(),
"command succeeded for two threads")
result.Clear()
interp.HandleCommand("", result, True)
self.assertTrue(result.Succeeded(),
"repeat command succeeded for two threads")
result_str = result.GetOutput()
self.check_two_threads(result_str, thread_id_1, name_1, thread_id_2,
name_2, 23, 32)
# Finally make sure the repeat repeats:
result.Clear()
interp.HandleCommand("", result, True)
self.assertTrue(result.Succeeded(),
"repeat command succeeded for two threads")
result_str = result.GetOutput()
self.check_two_threads(result_str, thread_id_1, name_1, thread_id_2,
name_2, 13, 22)
