TestWatchpointMultipleThreads.py [plain text]
"""
Test that lldb watchpoint works for multiple threads.
"""
import os, time
import unittest2
import lldb
from lldbtest import *
class WatchpointForMultipleThreadsTestCase(TestBase):
mydir = os.path.join("functionalities", "watchpoint", "multiple_threads")
@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
def test_watchpoint_multiple_threads_with_dsym(self):
"""Test that lldb watchpoint works for multiple threads."""
self.buildDsym(dictionary=self.d)
self.setTearDownCleanup(dictionary=self.d)
self.hello_multiple_threads()
def test_watchpoint_multiple_threads_with_dwarf(self):
"""Test that lldb watchpoint works for multiple threads."""
self.buildDwarf(dictionary=self.d)
self.setTearDownCleanup(dictionary=self.d)
self.hello_multiple_threads()
def setUp(self):
TestBase.setUp(self)
self.source = 'main.cpp'
self.first_stop = line_number(self.source, '// Set break point at this line')
self.thread_function = line_number(self.source, '// Break here in order to allow the thread')
self.exe_name = self.testMethodName
self.d = {'CXX_SOURCES': self.source, 'EXE': self.exe_name}
def hello_multiple_threads(self):
"""Test that lldb watchpoint works for multiple threads."""
exe = os.path.join(os.getcwd(), self.exe_name)
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
self.expect("breakpoint set -l %d" % self.first_stop, BREAKPOINT_CREATED,
startstr = "Breakpoint created: 1: file ='%s', line = %d, locations = 1" %
(self.source, self.first_stop))
self.expect("breakpoint set -l %d" % self.thread_function, BREAKPOINT_CREATED,
startstr = "Breakpoint created: 2: file ='%s', line = %d, locations = 1" %
(self.source, self.thread_function))
self.runCmd("run", RUN_SUCCEEDED)
self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
substrs = ['stopped',
'stop reason = breakpoint'])
self.expect("frame variable -w write -g g_val", WATCHPOINT_CREATED,
substrs = ['Watchpoint created', 'size = 4', 'type = w'])
self.expect("watchpoint list -v",
substrs = ['hit_count = 0'])
breakpoint_stops = 0
while True:
self.runCmd("process continue")
self.runCmd("thread list")
if "stop reason = breakpoint" in self.res.GetOutput():
breakpoint_stops += 1
if breakpoint_stops > 3:
self.fail("Do not expect to break more than 3 times")
continue
elif "stop reason = watchpoint" in self.res.GetOutput():
self.runCmd("thread backtrace all")
break
else:
self.fail("The stop reason should be either break or watchpoint")
self.expect("watchpoint list -v",
substrs = ['hit_count = 1'])
if __name__ == '__main__':
import atexit
lldb.SBDebugger.Initialize()
atexit.register(lambda: lldb.SBDebugger.Terminate())
unittest2.main()