forked from OSchip/llvm-project
161 lines
5.4 KiB
Python
161 lines
5.4 KiB
Python
"""
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Test that the lldb driver's batch mode works correctly.
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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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from lldbsuite.test.lldbpexpect import PExpectTest
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class DriverBatchModeTest(PExpectTest):
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mydir = TestBase.compute_mydir(__file__)
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source = 'main.c'
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@expectedFlakeyFreeBSD("llvm.org/pr25172 fails rarely on the buildbot")
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def test_batch_mode_run_crash(self):
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"""Test that the lldb driver's batch mode works correctly."""
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self.build()
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exe = self.getBuildArtifact("a.out")
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# Pass CRASH so the process will crash and stop in batch mode.
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extra_args = ['-b',
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'-o', 'break set -n main',
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'-o', 'run',
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'-o', 'continue',
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'-k', 'frame var touch_me_not',
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'--', 'CRASH',
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]
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self.launch(executable=exe, extra_args=extra_args)
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child = self.child
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# We should see the "run":
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child.expect_exact("run")
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# We should have hit the breakpoint & continued:
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child.expect_exact("continue")
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# The App should have crashed:
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child.expect_exact("About to crash")
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# The -k option should have printed the frame variable once:
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child.expect_exact('(char *) touch_me_not')
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# Then we should have a live prompt:
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self.expect_prompt()
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self.expect("frame variable touch_me_not", substrs=['(char *) touch_me_not'])
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@expectedFlakeyFreeBSD("llvm.org/pr25172 fails rarely on the buildbot")
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def test_batch_mode_run_exit(self):
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"""Test that the lldb driver's batch mode works correctly."""
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self.build()
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exe = self.getBuildArtifact("a.out")
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# Now do it again, and make sure if we don't crash, we quit:
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extra_args = ['-b',
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'-o', 'break set -n main',
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'-o', 'run',
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'-o', 'continue',
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'--', 'NOCRASH',
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]
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self.launch(executable=exe, extra_args=extra_args)
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child = self.child
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# We should see the "run":
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child.expect_exact("run")
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# We should have hit the breakpoint & continued:
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child.expect_exact("continue")
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# The App should have not have crashed:
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child.expect_exact("Got there on time and it did not crash.")
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# Then lldb should exit.
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child.expect_exact("exited")
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import pexpect
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child.expect(pexpect.EOF)
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@expectedFlakeyFreeBSD("llvm.org/pr25172 fails rarely on the buildbot")
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def test_batch_mode_launch_stop_at_entry(self):
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"""Test that the lldb driver's batch mode works correctly for process launch."""
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self.build()
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exe = self.getBuildArtifact("a.out")
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# Launch with the option '--stop-at-entry' stops with a signal (usually SIGSTOP)
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# that should be suppressed since it doesn't imply a crash and
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# this is not a reason to exit batch mode.
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extra_args = ['-b',
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'-o', 'process launch --stop-at-entry',
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'-o', 'continue',
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]
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self.launch(executable=exe, extra_args=extra_args)
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child = self.child
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# Check that the process has been launched:
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child.expect("Process ([0-9]+) launched:")
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# We should have continued:
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child.expect_exact("continue")
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# The App should have not have crashed:
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child.expect_exact("Got there on time and it did not crash.")
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# Then lldb should exit.
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child.expect_exact("exited")
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import pexpect
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child.expect(pexpect.EOF)
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def closeVictim(self):
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if self.victim is not None:
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self.victim.close()
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self.victim = None
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@expectedFlakeyFreeBSD("llvm.org/pr25172 fails rarely on the buildbot")
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@expectedFailureNetBSD
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def test_batch_mode_attach_exit(self):
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"""Test that the lldb driver's batch mode works correctly."""
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self.build()
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self.setTearDownCleanup()
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exe = self.getBuildArtifact("a.out")
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# Start up the process by hand, attach to it, and wait for its completion.
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# Attach is funny, since it looks like it stops with a signal on most Unixen so
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# care must be taken not to treat that as a reason to exit batch mode.
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# Start up the process by hand and wait for it to get to the wait loop.
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import pexpect
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self.victim = pexpect.spawn('%s WAIT' % (exe))
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if self.victim is None:
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self.fail("Could not spawn ", exe, ".")
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self.addTearDownHook(self.closeVictim)
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self.victim.expect("PID: ([0-9]+) END")
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victim_pid = int(self.victim.match.group(1))
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self.victim.expect("Waiting")
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extra_args = [
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'-b',
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'-o', 'process attach -p %d'%victim_pid,
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'-o', "breakpoint set --file '%s' -p 'Stop here to unset keep_waiting' -N keep_waiting"%self.source,
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'-o', 'continue',
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'-o', 'break delete keep_waiting',
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'-o', 'expr keep_waiting = 0',
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'-o', 'continue',
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]
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self.launch(executable=exe, extra_args=extra_args)
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child = self.child
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child.expect_exact("attach")
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child.expect_exact(self.PROMPT + "continue")
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child.expect_exact(self.PROMPT + "continue")
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# Then we should see the process exit:
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child.expect_exact("Process %d exited with status" % (victim_pid))
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self.victim.expect(pexpect.EOF)
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child.expect(pexpect.EOF)
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