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    mydir = TestBase.compute_mydir(__file__)
16
17    @expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr44429")
18    def test(self):
19        """Test breakpoint works correctly with dead-code stripping."""
20        self.build()
21        exe = self.getBuildArtifact("a.out")
22        self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
23
24        # Break by function name f1 (live code).
25        lldbutil.run_break_set_by_symbol(
26            self, "f1", num_expected_locations=1, module_name="a.out")
27
28        # Break by function name f2 (dead code).
29        lldbutil.run_break_set_by_symbol(
30            self, "f2", num_expected_locations=0, module_name="a.out")
31
32        # Break by function name f3 (live code).
33        lldbutil.run_break_set_by_symbol(
34            self, "f3", num_expected_locations=1, module_name="a.out")
35
36        self.runCmd("run", RUN_SUCCEEDED)
37
38        # The stop reason of the thread should be breakpoint (breakpoint #1).
39        self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
40                    substrs=['stopped',
41                             'a.out`f1',
42                             'stop reason = breakpoint'])
43
44        # The breakpoint should have a hit count of 1.
45        lldbutil.check_breakpoint(self, bpno = 1, expected_hit_count = 1)
46
47        self.runCmd("continue")
48
49        # The stop reason of the thread should be breakpoint (breakpoint #3).
50        self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
51                    substrs=['stopped',
52                             'a.out`f3',
53                             'stop reason = breakpoint'])
54
55        # The breakpoint should have a hit count of 1.
56        lldbutil.check_breakpoint(self, bpno = 3, expected_hit_count = 1)
57