82 lines
2.7 KiB
Python
82 lines
2.7 KiB
Python
"""
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Test that we can backtrace correctly with 'sigtramp' functions on the stack
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"""
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from __future__ import print_function
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import os, time
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import lldb
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from lldbsuite.test.lldbtest import *
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import lldbsuite.test.lldbutil as lldbutil
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class SigtrampUnwind(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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# On different platforms the "_sigtramp" and "__kill" frames are likely to be different.
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# This test could probably be adapted to run on linux/*bsd easily enough.
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@skipUnlessDarwin
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def test (self):
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"""Test that we can backtrace correctly with _sigtramp on the stack"""
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self.build()
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self.setTearDownCleanup()
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exe = os.path.join(os.getcwd(), "a.out")
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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lldbutil.run_break_set_by_file_and_line (self, "main.c", line_number('main.c', '// Set breakpoint here'), num_expected_locations=1)
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process = target.LaunchSimple (None, None, self.get_process_working_directory())
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if not process:
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self.fail("SBTarget.Launch() failed")
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if process.GetState() != lldb.eStateStopped:
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self.fail("Process should be in the 'stopped' state, "
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"instead the actual state is: '%s'" %
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lldbutil.state_type_to_str(process.GetState()))
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self.expect("pro handle -n false -p true -s false SIGUSR1", "Have lldb pass SIGUSR1 signals",
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substrs = ["SIGUSR1", "true", "false", "false"])
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lldbutil.run_break_set_by_symbol (self, "handler", num_expected_locations=1, module_name="a.out")
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self.runCmd("continue")
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thread = process.GetThreadAtIndex(0)
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found_handler = False
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found_sigtramp = False
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found_kill = False
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found_main = False
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for f in thread.frames:
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if f.GetFunctionName() == "handler":
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found_handler = True
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if f.GetFunctionName() == "_sigtramp":
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found_sigtramp = True
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if f.GetFunctionName() == "__kill":
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found_kill = True
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if f.GetFunctionName() == "main":
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found_main = True
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if self.TraceOn():
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print("Backtrace once we're stopped:")
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for f in thread.frames:
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print(" %d %s" % (f.GetFrameID(), f.GetFunctionName()))
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if found_handler == False:
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self.fail("Unable to find handler() in backtrace.")
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if found_sigtramp == False:
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self.fail("Unable to find _sigtramp() in backtrace.")
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if found_kill == False:
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self.fail("Unable to find kill() in backtrace.")
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if found_main == False:
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self.fail("Unable to find main() in backtrace.")
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