xref: /llvm-project/lldb/test/API/functionalities/ubsan/user-expression/TestUbsanUserExpression.py (revision 2238dcc39358353cac21df75c3c3286ab20b8f53) 
1"""
2Test that hitting a UBSan issue while running user expression doesn't break the evaluation.
3"""
4
5import lldb
6from lldbsuite.test.lldbtest import *
7from lldbsuite.test.decorators import *
8import lldbsuite.test.lldbutil as lldbutil
9
10
11class UbsanUserExpressionTestCase(TestBase):
12    @skipUnlessUndefinedBehaviorSanitizer
13    def test(self):
14        self.build()
15        self.ubsan_tests()
16
17    def setUp(self):
18        # Call super's setUp().
19        TestBase.setUp(self)
20        self.line_breakpoint = line_number("main.c", "// breakpoint line")
21
22    def ubsan_tests(self):
23        # Load the test
24        exe = self.getBuildArtifact("a.out")
25        target = self.dbg.CreateTarget(exe)
26        self.assertTrue(target, VALID_TARGET)
27        self.registerSanitizerLibrariesWithTarget(target)
28
29        self.runCmd("breakpoint set -f main.c -l %d" % self.line_breakpoint)
30
31        self.runCmd("run")
32
33        process = self.dbg.GetSelectedTarget().process
34        thread = process.GetSelectedThread()
35        frame = thread.GetSelectedFrame()
36
37        self.expect(
38            "thread list",
39            STOPPED_DUE_TO_BREAKPOINT,
40            substrs=["stopped", "stop reason = breakpoint"],
41        )
42
43        self.expect("expression foo()", substrs=["(int) $0 = 42"])
44
45        self.expect(
46            "thread list",
47            STOPPED_DUE_TO_BREAKPOINT,
48            substrs=["stopped", "stop reason = breakpoint"],
49        )
50