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"""Test that we can unwind out of a SIGABRT handler"""
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class HandleAbortTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
NO_DEBUG_INFO_TESTCASE = True
@skipIfWindows # signals do not exist on Windows
@expectedFailureNetBSD
def test_inferior_handle_sigabrt(self):
"""Inferior calls abort() and handles the resultant SIGABRT.
Stopped at a breakpoint in the handler, verify that the backtrace
includes the function that called abort()."""
self.build()
exe = self.getBuildArtifact("a.out")
# Create a target by the debugger.
target = self.dbg.CreateTarget(exe)
self.assertTrue(target, VALID_TARGET)
# launch
process = target.LaunchSimple(
None, None, self.get_process_working_directory())
self.assertTrue(process, PROCESS_IS_VALID)
self.assertEqual(process.GetState(), lldb.eStateStopped)
signo = process.GetUnixSignals().GetSignalNumberFromName("SIGABRT")
thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonSignal)
self.assertTrue(
thread and thread.IsValid(),
"Thread should be stopped due to a signal")
self.assertTrue(
thread.GetStopReasonDataCount() >= 1,
"There should be data in the event.")
self.assertEqual(thread.GetStopReasonDataAtIndex(0),
signo, "The stop signal should be SIGABRT")
# Continue to breakpoint in abort handler
bkpt = target.FindBreakpointByID(
lldbutil.run_break_set_by_source_regexp(self, "Set a breakpoint here"))
threads = lldbutil.continue_to_breakpoint(process, bkpt)
self.assertEqual(len(threads), 1, "Expected single thread")
thread = threads[0]
# Expect breakpoint in 'handler'
frame = thread.GetFrameAtIndex(0)
self.assertEqual(frame.GetDisplayFunctionName(), "handler", "Unexpected break?")
# Expect that unwinding should find 'abort_caller'
foundFoo = False
for frame in thread:
if frame.GetDisplayFunctionName() == "abort_caller":
foundFoo = True
self.assertTrue(foundFoo, "Unwinding did not find func that called abort")
# Continue until we exit.
process.Continue()
self.assertEqual(process.GetState(), lldb.eStateExited)
self.assertEqual(process.GetExitStatus(), 0)
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