1 """ 2 Test 'watchpoint command'. 3 """ 4 5 import os, time 6 import unittest2 7 import lldb 8 from lldbtest import * 9 import lldbutil 10 11 class WatchpointPythonCommandTestCase(TestBase): 12 13 mydir = os.path.join("functionalities", "watchpoint", "watchpoint_commands", "command") 14 15 def setUp(self): 16 # Call super's setUp(). 17 TestBase.setUp(self) 18 # Our simple source filename. 19 self.source = 'main.cpp' 20 # Find the line number to break inside main(). 21 self.line = line_number(self.source, '// Set break point at this line.') 22 # And the watchpoint variable declaration line number. 23 self.decl = line_number(self.source, '// Watchpoint variable declaration.') 24 # Build dictionary to have unique executable names for each test method. 25 self.exe_name = self.testMethodName 26 self.d = {'CXX_SOURCES': self.source, 'EXE': self.exe_name} 27 28 @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") 29 @dsym_test 30 def test_watchpoint_command_with_dsym(self): 31 """Test 'watchpoint command'.""" 32 self.buildDsym(dictionary=self.d) 33 self.setTearDownCleanup(dictionary=self.d) 34 self.watchpoint_command() 35 36 @expectedFailureFreeBSD('llvm.org/pr16706') # Watchpoints fail on FreeBSD 37 @dwarf_test 38 def test_watchpoint_command_with_dwarf(self): 39 """Test 'watchpoint command'.""" 40 self.buildDwarf(dictionary=self.d) 41 self.setTearDownCleanup(dictionary=self.d) 42 self.watchpoint_command() 43 44 def watchpoint_command(self): 45 """Do 'watchpoint command add'.""" 46 exe = os.path.join(os.getcwd(), self.exe_name) 47 self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET) 48 49 # Add a breakpoint to set a watchpoint when stopped on the breakpoint. 50 lldbutil.run_break_set_by_file_and_line (self, None, self.line, num_expected_locations=1) 51 # self.expect("breakpoint set -l %d" % self.line, BREAKPOINT_CREATED, 52 # startstr = "Breakpoint created: 1: file ='%s', line = %d, locations = 1" % 53 # (self.source, self.line))# 54 55 # Run the program. 56 self.runCmd("run", RUN_SUCCEEDED) 57 58 # We should be stopped again due to the breakpoint. 59 # The stop reason of the thread should be breakpoint. 60 self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT, 61 substrs = ['stopped', 62 'stop reason = breakpoint']) 63 64 # Now let's set a write-type watchpoint for 'global'. 65 self.expect("watchpoint set variable -w write global", WATCHPOINT_CREATED, 66 substrs = ['Watchpoint created', 'size = 4', 'type = w', 67 '%s:%d' % (self.source, self.decl)]) 68 69 self.runCmd('watchpoint command add -s python 1 -o \'frame.EvaluateExpression("cookie = 777")\'') 70 71 # List the watchpoint command we just added. 72 self.expect("watchpoint command list 1", 73 substrs = ['frame.EvaluateExpression', 'cookie = 777']) 74 75 # Use the '-v' option to do verbose listing of the watchpoint. 76 # The hit count should be 0 initially. 77 self.expect("watchpoint list -v", 78 substrs = ['hit_count = 0']) 79 80 self.runCmd("process continue") 81 82 # We should be stopped again due to the watchpoint (write type). 83 # The stop reason of the thread should be watchpoint. 84 self.expect("thread backtrace", STOPPED_DUE_TO_WATCHPOINT, 85 substrs = ['stop reason = watchpoint']) 86 87 # Check that the watchpoint snapshoting mechanism is working. 88 self.expect("watchpoint list -v", 89 substrs = ['old value:', ' = 0', 90 'new value:', ' = 1']) 91 92 # The watchpoint command "forced" our global variable 'cookie' to become 777. 93 self.expect("frame variable --show-globals cookie", 94 substrs = ['(int32_t)', 'cookie = 777']) 95 96 97 if __name__ == '__main__': 98 import atexit 99 lldb.SBDebugger.Initialize() 100 atexit.register(lambda: lldb.SBDebugger.Terminate()) 101 unittest2.main() 102
