106 lines
4.1 KiB
Python
106 lines
4.1 KiB
Python
"""Test that lldb command 'process signal SIGUSR1' to send a signal to the inferior works."""
|
|
|
|
from __future__ import print_function
|
|
|
|
|
|
|
|
import os, time, signal
|
|
import lldb
|
|
from lldbsuite.test.lldbtest import *
|
|
import lldbsuite.test.lldbutil as lldbutil
|
|
|
|
|
|
class SendSignalTestCase(TestBase):
|
|
|
|
mydir = TestBase.compute_mydir(__file__)
|
|
|
|
def setUp(self):
|
|
# Call super's setUp().
|
|
TestBase.setUp(self)
|
|
# Find the line number to break inside main().
|
|
self.line = line_number('main.c', 'Put breakpoint here')
|
|
|
|
@expectedFailureFreeBSD("llvm.org/pr23318: does not report running state")
|
|
@skipIfWindows # Windows does not support signals
|
|
def test_with_run_command(self):
|
|
"""Test that lldb command 'process signal SIGUSR1' sends a signal to the inferior process."""
|
|
self.build()
|
|
exe = os.path.join(os.getcwd(), "a.out")
|
|
|
|
# Create a target by the debugger.
|
|
target = self.dbg.CreateTarget(exe)
|
|
self.assertTrue(target, VALID_TARGET)
|
|
|
|
# Now create a breakpoint on main.c by name 'c'.
|
|
breakpoint = target.BreakpointCreateByLocation('main.c', self.line)
|
|
self.assertTrue(breakpoint and
|
|
breakpoint.GetNumLocations() == 1,
|
|
VALID_BREAKPOINT)
|
|
|
|
# Get the breakpoint location from breakpoint after we verified that,
|
|
# indeed, it has one location.
|
|
location = breakpoint.GetLocationAtIndex(0)
|
|
self.assertTrue(location and
|
|
location.IsEnabled(),
|
|
VALID_BREAKPOINT_LOCATION)
|
|
|
|
# Now launch the process, no arguments & do not stop at entry point.
|
|
launch_info = lldb.SBLaunchInfo([exe])
|
|
launch_info.SetWorkingDirectory(self.get_process_working_directory())
|
|
|
|
process_listener = lldb.SBListener("signal_test_listener")
|
|
launch_info.SetListener(process_listener)
|
|
error = lldb.SBError()
|
|
process = target.Launch(launch_info, error)
|
|
self.assertTrue(process, PROCESS_IS_VALID)
|
|
|
|
self.runCmd("process handle -n False -p True -s True SIGUSR1")
|
|
|
|
thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint)
|
|
self.assertTrue(thread.IsValid(), "We hit the first breakpoint.")
|
|
|
|
# After resuming the process, send it a SIGUSR1 signal.
|
|
|
|
self.setAsync(True)
|
|
|
|
self.assertTrue(process_listener.IsValid(), "Got a good process listener")
|
|
|
|
# Disable our breakpoint, we don't want to hit it anymore...
|
|
breakpoint.SetEnabled(False)
|
|
|
|
# Now continue:
|
|
process.Continue()
|
|
|
|
# If running remote test, there should be a connected event
|
|
if lldb.remote_platform:
|
|
self.match_state(process_listener, lldb.eStateConnected)
|
|
|
|
self.match_state(process_listener, lldb.eStateRunning)
|
|
|
|
# Now signal the process, and make sure it stops:
|
|
process.Signal(lldbutil.get_signal_number('SIGUSR1'))
|
|
|
|
self.match_state(process_listener, lldb.eStateStopped)
|
|
|
|
# Now make sure the thread was stopped with a SIGUSR1:
|
|
threads = lldbutil.get_stopped_threads(process, lldb.eStopReasonSignal)
|
|
self.assertTrue(len(threads) == 1, "One thread stopped for a signal.")
|
|
thread = threads[0]
|
|
|
|
self.assertTrue(thread.GetStopReasonDataCount() >= 1, "There was data in the event.")
|
|
self.assertTrue(thread.GetStopReasonDataAtIndex(0) == lldbutil.get_signal_number('SIGUSR1'),
|
|
"The stop signal was SIGUSR1")
|
|
|
|
def match_state(self, process_listener, expected_state):
|
|
num_seconds = 5
|
|
broadcaster = self.process().GetBroadcaster()
|
|
event_type_mask = lldb.SBProcess.eBroadcastBitStateChanged
|
|
event = lldb.SBEvent()
|
|
got_event = process_listener.WaitForEventForBroadcasterWithType(
|
|
num_seconds, broadcaster, event_type_mask, event)
|
|
self.assertTrue(got_event, "Got an event")
|
|
state = lldb.SBProcess.GetStateFromEvent(event)
|
|
self.assertTrue(state == expected_state,
|
|
"It was the %s state." %
|
|
lldb.SBDebugger_StateAsCString(expected_state))
|