TestWatchpointIter.py [plain text]
"""
Use lldb Python SBTarget API to iterate on the watchpoint(s) for the target.
"""
import os, time
import re
import unittest2
import lldb, lldbutil
from lldbtest import *
class WatchpointIteratorTestCase(TestBase):
mydir = os.path.join("python_api", "watchpoint")
def setUp(self):
TestBase.setUp(self)
self.source = 'main.c'
self.line = line_number(self.source, '// Set break point at this line.')
@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
@python_api_test
@dsym_test
def test_watch_iter_with_dsym(self):
"""Exercise SBTarget.watchpoint_iter() API to iterate on the available watchpoints."""
self.buildDsym()
self.do_watchpoint_iter()
@expectedFailureLinux @python_api_test
@dwarf_test
def test_watch_iter_with_dwarf(self):
"""Exercise SBTarget.watchpoint_iter() API to iterate on the available watchpoints."""
self.buildDwarf()
self.do_watchpoint_iter()
def do_watchpoint_iter(self):
"""Use SBTarget.watchpoint_iter() to do Pythonic iteration on the available watchpoints."""
exe = os.path.join(os.getcwd(), "a.out")
target = self.dbg.CreateTarget(exe)
self.assertTrue(target, VALID_TARGET)
breakpoint = target.BreakpointCreateByLocation(self.source, self.line)
self.assertTrue(breakpoint and
breakpoint.GetNumLocations() == 1,
VALID_BREAKPOINT)
process = target.LaunchSimple(None, None, os.getcwd())
process = target.GetProcess()
self.assertTrue(process.GetState() == lldb.eStateStopped,
PROCESS_STOPPED)
thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint)
frame0 = thread.GetFrameAtIndex(0)
value = frame0.FindValue('global', lldb.eValueTypeVariableGlobal)
error = lldb.SBError();
watchpoint = value.Watch(True, True, True, error)
self.assertTrue(value and watchpoint,
"Successfully found the variable and set a watchpoint")
self.DebugSBValue(value)
if not self.TraceOn():
self.HideStdout()
self.assertTrue(target.GetNumWatchpoints() == 1)
self.assertTrue(watchpoint.IsEnabled())
watch_id = watchpoint.GetID()
self.assertTrue(watch_id != 0)
process.Continue()
if not self.TraceOn():
self.HideStdout()
lldbutil.print_stacktraces(process)
thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonWatchpoint)
self.assertTrue(thread, "The thread stopped due to watchpoint")
self.DebugSBValue(value)
print watchpoint
self.assertTrue(watchpoint.GetHardwareIndex() != -1)
print lldbutil.get_description(watchpoint, lldb.eDescriptionLevelFull)
watchpoint.SetEnabled(False)
self.assertTrue(watchpoint.GetHardwareIndex() == -1)
self.assertFalse(watchpoint.IsEnabled())
process.Continue()
self.assertTrue(process.GetState() == lldb.eStateExited, PROCESS_EXITED)
for watchpoint in target.watchpoint_iter():
self.assertTrue(watchpoint)
self.assertTrue(watchpoint.GetWatchSize() == 4)
self.assertTrue(watchpoint.GetHitCount() == 1)
print watchpoint
if __name__ == '__main__':
import atexit
lldb.SBDebugger.Initialize()
atexit.register(lambda: lldb.SBDebugger.Terminate())
unittest2.main()