1"""Test that importing modules in C works as expected."""
2
3
4
5import os
6
7import lldb
8from lldbsuite.test.decorators import *
9from lldbsuite.test.lldbtest import *
10from lldbsuite.test import lldbutil
11
12
13class CModulesTestCase(TestBase):
14
15    mydir = TestBase.compute_mydir(__file__)
16
17    @expectedFailureAll(
18        oslist=["freebsd", "linux"],
19        bugnumber="http://llvm.org/pr23456 'fopen' has unknown return type")
20    @expectedFailureAll(
21        oslist=["windows"],
22        bugnumber="llvm.org/pr24489: Name lookup not working correctly on Windows")
23    @skipIf(macos_version=["<", "10.12"])
24    @expectedFailureNetBSD
25    def test_expr(self):
26        self.build()
27        exe = self.getBuildArtifact("a.out")
28        self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
29
30        # Break inside the foo function which takes a bar_ptr argument.
31        lldbutil.run_break_set_by_file_and_line(
32            self, "main.c", self.line, num_expected_locations=1, loc_exact=True)
33
34        self.runCmd("run", RUN_SUCCEEDED)
35
36        # The stop reason of the thread should be breakpoint.
37        self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
38                    substrs=['stopped',
39                             'stop reason = breakpoint'])
40
41        # The breakpoint should have a hit count of 1.
42        self.expect("breakpoint list -f", BREAKPOINT_HIT_ONCE,
43                    substrs=[' resolved, hit count = 1'])
44
45        # Enable logging of the imported AST.
46        log_file = self.getBuildArtifact("lldb-ast-log.txt")
47        if configuration.is_reproducer_replay():
48            log_file = self.getReproducerRemappedPath(log_file)
49        self.runCmd("log enable lldb ast -f '%s'" % log_file)
50
51        self.expect(
52            "expr -l objc++ -- @import Darwin; 3",
53            VARIABLES_DISPLAYED_CORRECTLY,
54            substrs=[
55                "int",
56                "3"])
57
58        # This expr command imports __sFILE with definition
59        # (FILE is a typedef to __sFILE.)
60        self.expect(
61            "expr *fopen(\"/dev/zero\", \"w\")",
62            VARIABLES_DISPLAYED_CORRECTLY,
63            substrs=[
64                "FILE",
65                "_close"])
66
67        # Check that the AST log contains exactly one definition of __sFILE.
68        f = open(log_file)
69        log_lines = f.readlines()
70        f.close()
71        os.remove(log_file)
72        self.assertEqual(" ".join(log_lines).count("struct __sFILE definition"),
73                         1)
74
75        self.expect("expr *myFile", VARIABLES_DISPLAYED_CORRECTLY,
76                    substrs=["a", "5", "b", "9"])
77
78        self.expect(
79            "expr MIN((uint64_t)2, (uint64_t)3)",
80            VARIABLES_DISPLAYED_CORRECTLY,
81            substrs=[
82                "uint64_t",
83                "2"])
84
85        self.expect("expr stdin", VARIABLES_DISPLAYED_CORRECTLY,
86                    substrs=["(FILE *)", "0x"])
87
88    def setUp(self):
89        # Call super's setUp().
90        TestBase.setUp(self)
91        # Find the line number to break inside main().
92        self.line = line_number('main.c', '// Set breakpoint 0 here.')
93