2c2eb5e670
The new FreeBSDRemote plugin has reached feature parity on i386 and amd64 targets. Use it by default on these architectures, while allowing the use of the legacy plugin via FREEBSD_LEGACY_PLUGIN envvar. Revisit the method of switching plugins. Apparently, the return value of PlatformFreeBSD::CanDebugProcess() is what really decides whether the legacy or the new plugin is used. Update the test status. Reenable the tests that were previously disabled on FreeBSD and do not cause hangs or are irrelevant to FreeBSD. Mark all tests that fail reliably as expectedFailure. For now, tests that are flaky (i.e. produce unstable results) are left enabled and cause unpredictable test failures. Differential Revision: https://reviews.llvm.org/D90757
83 lines
3.1 KiB
Python
83 lines
3.1 KiB
Python
"""
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Test the use of setjmp/longjmp for non-local goto operations in a single-threaded inferior.
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"""
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import lldb
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import lldbutil
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class LongjmpTestCase(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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@skipIfDarwin # llvm.org/pr16769: LLDB on Mac OS X dies in function ReadRegisterBytes in GDBRemoteRegisterContext.cpp
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@expectedFailureAll(oslist=["freebsd", "linux"], bugnumber="llvm.org/pr20231")
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@expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr24778")
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@expectedFlakeyNetBSD
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def test_step_out(self):
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"""Test stepping when the inferior calls setjmp/longjmp, in particular, thread step-out."""
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self.build()
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self.step_out()
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@skipIfDarwin # llvm.org/pr16769: LLDB on Mac OS X dies in function ReadRegisterBytes in GDBRemoteRegisterContext.cpp
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@expectedFailureAll(oslist=["freebsd", "linux"], bugnumber="llvm.org/pr20231")
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@expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr24778")
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@skipIfNetBSD
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def test_step_over(self):
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"""Test stepping when the inferior calls setjmp/longjmp, in particular, thread step-over a longjmp."""
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self.build()
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self.step_over()
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@skipIfDarwin # llvm.org/pr16769: LLDB on Mac OS X dies in function ReadRegisterBytes in GDBRemoteRegisterContext.cpp
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@expectedFailureAll(oslist=["freebsd", "linux"], bugnumber="llvm.org/pr20231")
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@expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr24778")
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@expectedFlakeyNetBSD
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def test_step_back_out(self):
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"""Test stepping when the inferior calls setjmp/longjmp, in particular, thread step-out after thread step-in."""
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self.build()
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self.step_back_out()
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def start_test(self, symbol):
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exe = self.getBuildArtifact("a.out")
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self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
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# Break in main().
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lldbutil.run_break_set_by_symbol(
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self, symbol, num_expected_locations=-1)
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self.runCmd("run", RUN_SUCCEEDED)
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# The stop reason of the thread should be breakpoint.
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self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
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substrs=['stopped', 'stop reason = breakpoint'])
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def check_status(self):
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# Note: Depending on the generated mapping of DWARF to assembly,
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# the process may have stopped or exited.
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self.expect("process status", PROCESS_STOPPED,
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patterns=['Process .* exited with status = 0'])
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def step_out(self):
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self.start_test("do_jump")
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self.runCmd("thread step-out", RUN_SUCCEEDED)
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self.check_status()
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def step_over(self):
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self.start_test("do_jump")
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self.runCmd("thread step-over", RUN_SUCCEEDED)
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self.runCmd("thread step-over", RUN_SUCCEEDED)
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self.check_status()
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def step_back_out(self):
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self.start_test("main")
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self.runCmd("thread step-over", RUN_SUCCEEDED)
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self.runCmd("thread step-in", RUN_SUCCEEDED)
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self.runCmd("thread step-out", RUN_SUCCEEDED)
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self.check_status()
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