1 """ 2 Test breakpoint ignore count features. 3 """ 4 5 import os, time 6 import re 7 import unittest2 8 import lldb, lldbutil 9 from lldbtest import * 10 11 class BreakpointIgnoreCountTestCase(TestBase): 12 13 mydir = os.path.join("functionalities", "breakpoint", "breakpoint_ignore_count") 14 15 @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") 16 @dsym_test 17 def test_with_dsym_and_run_command(self): 18 """Exercise breakpoint ignore count with 'breakpoint set -i <count>'.""" 19 self.buildDsym() 20 self.breakpoint_ignore_count() 21 22 @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") 23 @python_api_test 24 @dsym_test 25 def test_with_dsym_and_python_api(self): 26 """Use Python APIs to set breakpoint ignore count.""" 27 self.buildDsym() 28 self.breakpoint_ignore_count_python() 29 30 @dwarf_test 31 def test_with_dwarf_and_run_command(self): 32 """Exercise breakpoint ignore count with 'breakpoint set -i <count>'.""" 33 self.buildDwarf() 34 self.breakpoint_ignore_count() 35 36 @python_api_test 37 @dwarf_test 38 def test_with_dwarf_and_python_api(self): 39 """Use Python APIs to set breakpoint ignore count.""" 40 self.buildDwarf() 41 self.breakpoint_ignore_count_python() 42 43 def setUp(self): 44 # Call super's setUp(). 45 TestBase.setUp(self) 46 # Find the line number to of function 'c'. 47 self.line1 = line_number('main.c', '// Find the line number of function "c" here.') 48 self.line2 = line_number('main.c', '// b(2) -> c(2) Find the call site of b(2).') 49 self.line3 = line_number('main.c', '// a(3) -> c(3) Find the call site of c(3).') 50 self.line4 = line_number('main.c', '// a(3) -> c(3) Find the call site of a(3).') 51 self.line5 = line_number('main.c', '// Find the call site of c in main.') 52 53 def breakpoint_ignore_count(self): 54 """Exercise breakpoint ignore count with 'breakpoint set -i <count>'.""" 55 exe = os.path.join(os.getcwd(), "a.out") 56 self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET) 57 58 # Create a breakpoint in main.c at line1. 59 lldbutil.run_break_set_by_file_and_line (self, 'main.c', self.line1, extra_options='-i 1', num_expected_locations=1, loc_exact=True) 60 61 # Now run the program. 62 self.runCmd("run", RUN_SUCCEEDED) 63 64 # The process should be stopped at this point. 65 self.expect("process status", PROCESS_STOPPED, 66 patterns = ['Process .* stopped']) 67 68 # Also check the hit count, which should be 2, due to ignore count of 1. 69 self.expect("breakpoint list -f", BREAKPOINT_HIT_THRICE, 70 substrs = ["resolved = 1", 71 "hit count = 2"]) 72 73 # The frame #0 should correspond to main.c:37, the executable statement 74 # in function name 'c'. And frame #2 should point to main.c:45. 75 self.expect("thread backtrace", STOPPED_DUE_TO_BREAKPOINT_IGNORE_COUNT, 76 #substrs = ["stop reason = breakpoint"], 77 patterns = ["frame #0.*main.c:%d" % self.line1, 78 "frame #2.*main.c:%d" % self.line2]) 79 80 # continue -i 1 is the same as setting the ignore count to 1 again, try that: 81 # Now run the program. 82 self.runCmd("process continue -i 1", RUN_SUCCEEDED) 83 84 # The process should be stopped at this point. 85 self.expect("process status", PROCESS_STOPPED, 86 patterns = ['Process .* stopped']) 87 88 # Also check the hit count, which should be 2, due to ignore count of 1. 89 self.expect("breakpoint list -f", BREAKPOINT_HIT_THRICE, 90 substrs = ["resolved = 1", 91 "hit count = 4"]) 92 93 # The frame #0 should correspond to main.c:37, the executable statement 94 # in function name 'c'. And frame #2 should point to main.c:45. 95 self.expect("thread backtrace", STOPPED_DUE_TO_BREAKPOINT_IGNORE_COUNT, 96 #substrs = ["stop reason = breakpoint"], 97 patterns = ["frame #0.*main.c:%d" % self.line1, 98 "frame #1.*main.c:%d" % self.line5]) 99 100 101 102 def breakpoint_ignore_count_python(self): 103 """Use Python APIs to set breakpoint ignore count.""" 104 exe = os.path.join(os.getcwd(), "a.out") 105 106 # Create a target by the debugger. 107 target = self.dbg.CreateTarget(exe) 108 self.assertTrue(target, VALID_TARGET) 109 110 # Now create a breakpoint on main.c by name 'c'. 111 breakpoint = target.BreakpointCreateByName('c', 'a.out') 112 self.assertTrue(breakpoint and 113 breakpoint.GetNumLocations() == 1, 114 VALID_BREAKPOINT) 115 116 # Get the breakpoint location from breakpoint after we verified that, 117 # indeed, it has one location. 118 location = breakpoint.GetLocationAtIndex(0) 119 self.assertTrue(location and 120 location.IsEnabled(), 121 VALID_BREAKPOINT_LOCATION) 122 123 # Set the ignore count on the breakpoint location. 124 location.SetIgnoreCount(2) 125 self.assertTrue(location.GetIgnoreCount() == 2, 126 "SetIgnoreCount() works correctly") 127 128 # Now launch the process, and do not stop at entry point. 129 process = target.LaunchSimple(None, None, os.getcwd()) 130 self.assertTrue(process, PROCESS_IS_VALID) 131 132 # Frame#0 should be on main.c:37, frame#1 should be on main.c:25, and 133 # frame#2 should be on main.c:48. 134 #lldbutil.print_stacktraces(process) 135 from lldbutil import get_stopped_thread 136 thread = get_stopped_thread(process, lldb.eStopReasonBreakpoint) 137 self.assertTrue(thread.IsValid(), "There should be a thread stopped due to breakpoint") 138 frame0 = thread.GetFrameAtIndex(0) 139 frame1 = thread.GetFrameAtIndex(1) 140 frame2 = thread.GetFrameAtIndex(2) 141 self.assertTrue(frame0.GetLineEntry().GetLine() == self.line1 and 142 frame1.GetLineEntry().GetLine() == self.line3 and 143 frame2.GetLineEntry().GetLine() == self.line4, 144 STOPPED_DUE_TO_BREAKPOINT_IGNORE_COUNT) 145 146 # The hit count for the breakpoint should be 3. 147 self.assertTrue(breakpoint.GetHitCount() == 3) 148 149 process.Continue() 150 151 152 if __name__ == '__main__': 153 import atexit 154 lldb.SBDebugger.Initialize() 155 atexit.register(lambda: lldb.SBDebugger.Terminate()) 156 unittest2.main() 157
