1"""
2Test that breakpoint works correctly in the presence of dead-code stripping.
3"""
4
5
6
7import lldb
8from lldbsuite.test.decorators import *
9from lldbsuite.test.lldbtest import *
10from lldbsuite.test import lldbutil
11
12
13class DeadStripTestCase(TestBase):
14
15    @expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr44429")
16    def test(self):
17        """Test breakpoint works correctly with dead-code stripping."""
18        self.build()
19        exe = self.getBuildArtifact("a.out")
20        self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
21
22        # Break by function name f1 (live code).
23        lldbutil.run_break_set_by_symbol(
24            self, "f1", num_expected_locations=1, module_name="a.out")
25
26        # Break by function name f2 (dead code).
27        lldbutil.run_break_set_by_symbol(
28            self, "f2", num_expected_locations=0, module_name="a.out")
29
30        # Break by function name f3 (live code).
31        lldbutil.run_break_set_by_symbol(
32            self, "f3", num_expected_locations=1, module_name="a.out")
33
34        self.runCmd("run", RUN_SUCCEEDED)
35
36        # The stop reason of the thread should be breakpoint (breakpoint #1).
37        self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
38                    substrs=['stopped',
39                             'a.out`f1',
40                             'stop reason = breakpoint'])
41
42        # The breakpoint should have a hit count of 1.
43        lldbutil.check_breakpoint(self, bpno = 1, expected_hit_count = 1)
44
45        self.runCmd("continue")
46
47        # The stop reason of the thread should be breakpoint (breakpoint #3).
48        self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
49                    substrs=['stopped',
50                             'a.out`f3',
51                             'stop reason = breakpoint'])
52
53        # The breakpoint should have a hit count of 1.
54        lldbutil.check_breakpoint(self, bpno = 3, expected_hit_count = 1)
55