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1"""
2Test jumping to different places.
3"""
4
5
6
7import lldb
8from lldbsuite.test.decorators import *
9from lldbsuite.test.lldbtest import *
10from lldbsuite.test import lldbutil
11
12
13class ThreadJumpTestCase(TestBase):
14
15    mydir = TestBase.compute_mydir(__file__)
16
17    def test(self):
18        """Test thread jump handling."""
19        self.build(dictionary=self.getBuildFlags())
20        exe = self.getBuildArtifact("a.out")
21        self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
22
23        # Find the line numbers for our breakpoints.
24        self.mark1 = line_number('main.cpp', '// 1st marker')
25        self.mark2 = line_number('main.cpp', '// 2nd marker')
26        self.mark3 = line_number('main.cpp', '// 3rd marker')
27        self.mark4 = line_number('main.cpp', '// 4th marker')
28        self.mark5 = line_number('other.cpp', '// other marker')
29
30        lldbutil.run_break_set_by_file_and_line(
31            self, "main.cpp", self.mark3, num_expected_locations=1)
32        self.runCmd("run", RUN_SUCCEEDED)
33
34        # The stop reason of the thread should be breakpoint 1.
35        self.expect(
36            "thread list",
37            STOPPED_DUE_TO_BREAKPOINT + " 1",
38            substrs=[
39                'stopped',
40                'main.cpp:{}'.format(
41                    self.mark3),
42                'stop reason = breakpoint 1'])
43
44        # Try the int path, force it to return 'a'
45        self.do_min_test(self.mark3, self.mark1, "i", "4")
46        # Try the int path, force it to return 'b'
47        self.do_min_test(self.mark3, self.mark2, "i", "5")
48        # Try the double path, force it to return 'a'
49        self.do_min_test(self.mark4, self.mark1, "j", "7")
50        # Expected to fail on powerpc64le architecture
51        if not self.isPPC64le():
52            # Try the double path, force it to return 'b'
53            self.do_min_test(self.mark4, self.mark2, "j", "8")
54
55        # Try jumping to another function in a different file.
56        self.runCmd(
57            "thread jump --file other.cpp --line %i --force" %
58            self.mark5)
59        self.expect("process status",
60                    substrs=["at other.cpp:%i" % self.mark5])
61
62        # Try jumping to another function (without forcing)
63        self.expect(
64            "j main.cpp:%i" %
65            self.mark1,
66            COMMAND_FAILED_AS_EXPECTED,
67            error=True,
68            substrs=["error"])
69
70    def do_min_test(self, start, jump, var, value):
71        # jump to the start marker
72        self.runCmd("j %i" % start)
73        self.runCmd("thread step-in")                   # step into the min fn
74        # jump to the branch we're interested in
75        self.runCmd("j %i" % jump)
76        self.runCmd("thread step-out")                  # return out
77        self.runCmd("thread step-over")                 # assign to the global
78        self.expect("expr %s" % var, substrs=[value])  # check it
79