78d6e1d1d4
For an exception crashlog, the thread backtraces aren't usually very helpful and instead, developpers look at the "Application Specific Backtrace" that was generated by `objc_exception_throw`. LLDB could already parse and symbolicate these Application Specific Backtraces for regular textual-based crashlog, so this patch adds support to parse them in JSON crashlogs, and materialize them a HistoryThread extending the crashed ScriptedThread. This patch also includes the Application Specific Information messages as part of the process extended crash information log. To do so, the ScriptedProcess Python interface has a new GetMetadata method that returns an arbitrary dictionary with data related to the process. rdar://93207586 Differential Revision: https://reviews.llvm.org/D126260 Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
92 lines
2.9 KiB
Python
92 lines
2.9 KiB
Python
"""
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Test lldb process crash info.
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"""
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import os
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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 import lldbtest
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class PlatformProcessCrashInfoTestCase(TestBase):
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def setUp(self):
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TestBase.setUp(self)
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self.runCmd("settings set auto-confirm true")
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self.source = "main.c"
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self.line = line_number(self.source, '// break here')
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def tearDown(self):
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self.runCmd("settings clear auto-confirm")
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TestBase.tearDown(self)
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@skipIfAsan # The test process intentionally double-frees.
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@skipUnlessDarwin
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def test_cli(self):
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"""Test that `process status --verbose` fetches the extended crash
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information dictionary from the command-line properly."""
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self.build()
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exe = self.getBuildArtifact("a.out")
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self.expect("file " + exe,
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patterns=["Current executable set to .*a.out"])
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self.expect('process launch',
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patterns=["Process .* launched: .*a.out"])
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self.expect('process status --verbose',
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patterns=["Extended Crash Information",
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"Crash-Info Annotations",
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"pointer being freed was not allocated"])
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@skipIfAsan # The test process intentionally hits a memory bug.
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@skipUnlessDarwin
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def test_api(self):
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"""Test that lldb can fetch a crashed process' extended crash information
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dictionary from the api properly."""
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self.build()
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target = self.dbg.CreateTarget(self.getBuildArtifact("a.out"))
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self.assertTrue(target, VALID_TARGET)
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target.LaunchSimple(None, None, os.getcwd())
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stream = lldb.SBStream()
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self.assertTrue(stream)
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process = target.GetProcess()
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self.assertTrue(process)
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crash_info = process.GetExtendedCrashInformation()
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error = crash_info.GetAsJSON(stream)
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self.assertSuccess(error)
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self.assertTrue(crash_info.IsValid())
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self.assertIn("pointer being freed was not allocated", stream.GetData())
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# dyld leaves permanent crash_info records when testing on device.
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@skipIfDarwinEmbedded
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def test_on_sane_process(self):
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"""Test that lldb doesn't fetch the extended crash information
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dictionary from a 'sane' stopped process."""
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self.build()
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target, _, _, _ = lldbutil.run_to_line_breakpoint(self, lldb.SBFileSpec(self.source),
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self.line)
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stream = lldb.SBStream()
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self.assertTrue(stream)
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process = target.GetProcess()
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self.assertTrue(process)
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crash_info = process.GetExtendedCrashInformation()
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error = crash_info.GetAsJSON(stream)
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self.assertFalse(error.Success())
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self.assertIn("No structured data.", error.GetCString())
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