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"""
Test lldb process crash info.
"""
import os
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
from lldbsuite.test import lldbtest
class PlatformProcessCrashInfoTestCase(TestBase):
def setUp(self):
TestBase.setUp(self)
self.runCmd("settings set auto-confirm true")
self.source = "main.c"
self.line = line_number(self.source, "// break here")
def tearDown(self):
self.runCmd("settings clear auto-confirm")
TestBase.tearDown(self)
def containsLibmallocError(self, output):
for error in [
"pointer being freed was not allocated",
"not an allocated block",
]:
if error in output:
return True
return False
@skipIfAsan # The test process intentionally double-frees.
@skipUnlessDarwin
def test_cli(self):
"""Test that `process status --verbose` fetches the extended crash
information dictionary from the command-line properly."""
self.build()
exe = self.getBuildArtifact("a.out")
self.expect("file " + exe, patterns=["Current executable set to .*a.out"])
self.expect("process launch", patterns=["Process .* launched: .*a.out"])
result = lldb.SBCommandReturnObject()
self.dbg.GetCommandInterpreter().HandleCommand(
"process status --verbose", result
)
self.assertIn("Extended Crash Information", result.GetOutput())
self.assertIn("Crash-Info Annotations", result.GetOutput())
self.assertTrue(self.containsLibmallocError(result.GetOutput()))
@skipIfAsan # The test process intentionally hits a memory bug.
@skipUnlessDarwin
def test_api(self):
"""Test that lldb can fetch a crashed process' extended crash information
dictionary from the api properly."""
self.build()
target = self.dbg.CreateTarget(self.getBuildArtifact("a.out"))
self.assertTrue(target, VALID_TARGET)
target.LaunchSimple(None, None, os.getcwd())
stream = lldb.SBStream()
self.assertTrue(stream)
process = target.GetProcess()
self.assertTrue(process)
crash_info = process.GetExtendedCrashInformation()
error = crash_info.GetAsJSON(stream)
self.assertSuccess(error)
self.assertTrue(crash_info.IsValid())
self.assertTrue(self.containsLibmallocError(stream.GetData()))
# dyld leaves permanent crash_info records when testing on device.
@skipIfDarwinEmbedded
def test_on_sane_process(self):
"""Test that lldb doesn't fetch the extended crash information
dictionary from a 'sane' stopped process."""
self.build()
target, _, _, _ = lldbutil.run_to_line_breakpoint(
self, lldb.SBFileSpec(self.source), self.line
)
stream = lldb.SBStream()
self.assertTrue(stream)
process = target.GetProcess()
self.assertTrue(process)
crash_info = process.GetExtendedCrashInformation()
error = crash_info.GetAsJSON(stream)
self.assertFalse(error.Success())
self.assertIn("No structured data.", error.GetCString())
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