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"""Test that lldb command 'process signal SIGUSR1' to send a signal to the inferior works."""
import os, time, signal
import unittest2
import lldb
from lldbtest import *
class SendSignalTestCase(TestBase):
mydir = "signal"
@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
def test_with_dsym_and_run_command(self):
"""Test that lldb command 'process signal SIGUSR1' sends a signal to the inferior process."""
self.buildDsym()
self.send_signal()
def test_with_dwarf_and_run_command(self):
"""Test that lldb command 'process signal SIGUSR1' sends a signal to the inferior process."""
self.buildDwarf()
self.send_signal()
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')
def send_signal(self):
"""Test that lldb command 'process signal SIGUSR1' sends a signal to the inferior process."""
exe = os.path.join(os.getcwd(), "a.out")
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
# Break inside the main() function and immediately send a signal to the inferior after resuming.
self.expect("breakpoint set -f main.c -l %d" % self.line,
BREAKPOINT_CREATED,
startstr = "Breakpoint created: 1: file ='main.c', line = %d, locations = 1" %
self.line)
self.runCmd("run", RUN_SUCCEEDED)
self.runCmd("thread backtrace")
# The stop reason of the thread should be breakpoint.
self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
substrs = ['state is stopped',
'stop reason = breakpoint'])
# The breakpoint should have a hit count of 1.
self.expect("breakpoint list -f", BREAKPOINT_HIT_ONCE,
substrs = [' resolved, hit count = 1'])
self.runCmd("process status")
output = self.res.GetOutput()
pid = re.match("Process (.*) stopped", output).group(1)
# After resuming the process, send it a SIGUSR1 signal.
# It is necessary at this point to make command interpreter interaction
# be asynchronous, because we want to resume the process and to send it
# a signal.
self.dbg.SetAsync(True)
self.runCmd("process continue")
# Insert a delay of 1 second before doing the signaling stuffs.
time.sleep(1)
self.runCmd("process handle -n False -p True -s True SIGUSR1")
#os.kill(int(pid), signal.SIGUSR1)
self.runCmd("process signal SIGUSR1")
# Insert a delay of 1 second before checking the process status.
time.sleep(1)
# Make the interaction mode be synchronous again.
self.dbg.SetAsync(False)
self.expect("process status", STOPPED_DUE_TO_SIGNAL,
startstr = "Process %s stopped" % pid,
substrs = ['stop reason = signal SIGUSR1'])
self.expect("thread backtrace", STOPPED_DUE_TO_SIGNAL,
substrs = ['stop reason = signal SIGUSR1'])
if __name__ == '__main__':
import atexit
lldb.SBDebugger.Initialize()
atexit.register(lambda: lldb.SBDebugger.Terminate())
unittest2.main()
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