xref: /llvm-project/lldb/test/API/functionalities/signal/handle-abrt/TestHandleAbort.py (revision 9c2468821ec51defd09c246fea4a47886fff8c01) 
1"""Test that we can unwind out of a SIGABRT handler"""
2
3
4import lldb
5from lldbsuite.test.decorators import *
6from lldbsuite.test.lldbtest import *
7from lldbsuite.test import lldbutil
8
9
10class HandleAbortTestCase(TestBase):
11    NO_DEBUG_INFO_TESTCASE = True
12
13    @skipIfWindows  # signals do not exist on Windows
14    @expectedFailureNetBSD
15    def test_inferior_handle_sigabrt(self):
16        """Inferior calls abort() and handles the resultant SIGABRT.
17        Stopped at a breakpoint in the handler, verify that the backtrace
18        includes the function that called abort()."""
19        self.build()
20        exe = self.getBuildArtifact("a.out")
21
22        # Create a target by the debugger.
23        target = self.dbg.CreateTarget(exe)
24        self.assertTrue(target, VALID_TARGET)
25
26        # launch
27        process = target.LaunchSimple(None, None, self.get_process_working_directory())
28        self.assertTrue(process, PROCESS_IS_VALID)
29        self.assertState(process.GetState(), lldb.eStateStopped)
30        signo = process.GetUnixSignals().GetSignalNumberFromName("SIGABRT")
31
32        thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonSignal)
33        self.assertTrue(
34            thread and thread.IsValid(), "Thread should be stopped due to a signal"
35        )
36        self.assertGreaterEqual(
37            thread.GetStopReasonDataCount(), 1, "There should be data in the event."
38        )
39        self.assertEqual(
40            thread.GetStopReasonDataAtIndex(0),
41            signo,
42            "The stop signal should be SIGABRT",
43        )
44
45        # Continue to breakpoint in abort handler
46        bkpt = target.FindBreakpointByID(
47            lldbutil.run_break_set_by_source_regexp(self, "Set a breakpoint here")
48        )
49        threads = lldbutil.continue_to_breakpoint(process, bkpt)
50        self.assertEqual(len(threads), 1, "Expected single thread")
51        thread = threads[0]
52
53        # Expect breakpoint in 'handler'
54        frame = thread.GetFrameAtIndex(0)
55        self.assertEqual(frame.GetDisplayFunctionName(), "handler", "Unexpected break?")
56
57        # Expect that unwinding should find 'abort_caller'
58        foundFoo = False
59        for frame in thread:
60            if frame.GetDisplayFunctionName() == "abort_caller":
61                foundFoo = True
62
63        self.assertTrue(foundFoo, "Unwinding did not find func that called abort")
64
65        # Continue until we exit.
66        process.Continue()
67        self.assertState(process.GetState(), lldb.eStateExited)
68        self.assertEqual(process.GetExitStatus(), 0)
69