95c453a221
For convenience, we had added the folder that dotest.py was in to sys.path, so that we could easily write things like `import lldbutil` from anywhere and any test. This introduces a subtle problem when using Python's package system, because when unittest2 imports a particular test suite, the test suite is detached from the package. Thus, writing "import lldbutil" from dotest imports it as part of the package, and writing the same line from a test does a fresh import since the importing module was not part of the same package. The real way to fix this is to use absolute imports everywhere. Instead of writing "import lldbutil", we need to write "import lldbsuite.test.util". This patch fixes up that and all other similar cases, and additionally removes the script directory from sys.path to ensure that this can't happen again. llvm-svn: 251886
84 lines
3.2 KiB
Python
84 lines
3.2 KiB
Python
"""
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Test the AddressSanitizer runtime support for report breakpoint and data extraction.
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"""
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from __future__ import print_function
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import use_lldb_suite
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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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import json
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class AsanTestReportDataCase(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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# The default compiler ("clang") may not support Address Sanitizer or it
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# may not have the debugging API which was recently added, so we're calling
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# self.useBuiltClang() to use clang from the llvm-build directory instead
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@expectedFailureLinux # non-core functionality, need to reenable and fix later (DES 2014.11.07)
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@skipIfFreeBSD # llvm.org/pr21136 runtimes not yet available by default
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@skipIfRemote
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@skipUnlessCompilerRt
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def test(self):
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compiler = self.findBuiltClang ()
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self.build (None, compiler)
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self.asan_tests ()
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def setUp(self):
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# Call super's setUp().
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TestBase.setUp(self)
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self.line_malloc = line_number('main.c', '// malloc line')
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self.line_malloc2 = line_number('main.c', '// malloc2 line')
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self.line_free = line_number('main.c', '// free line')
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self.line_breakpoint = line_number('main.c', '// break line')
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self.line_crash = line_number('main.c', '// BOOM line')
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def asan_tests (self):
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exe = os.path.join (os.getcwd(), "a.out")
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self.expect("file " + exe, patterns = [ "Current executable set to .*a.out" ])
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self.runCmd("run")
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# ASan will relaunch the process to insert its library.
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self.expect("thread list", "Process should be stopped due to exec.",
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substrs = ['stopped', 'stop reason = exec'])
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# no extended info when we have no ASan report
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thread = self.dbg.GetSelectedTarget().process.GetSelectedThread()
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s = lldb.SBStream()
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self.assertFalse(thread.GetStopReasonExtendedInfoAsJSON(s))
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self.runCmd("continue")
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self.expect("thread list", "Process should be stopped due to ASan report",
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substrs = ['stopped', 'stop reason = Use of deallocated memory detected'])
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self.assertEqual(self.dbg.GetSelectedTarget().process.GetSelectedThread().GetStopReason(), lldb.eStopReasonInstrumentation)
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self.expect("bt", "The backtrace should show the crashing line",
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substrs = ['main.c:%d' % self.line_crash])
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self.expect("thread info -s", "The extended stop info should contain the ASan provided fields",
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substrs = ["access_size", "access_type", "address", "pc", "description", "heap-use-after-free"])
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output_lines = self.res.GetOutput().split('\n')
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json_line = output_lines[2]
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data = json.loads(json_line)
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self.assertEqual(data["description"], "heap-use-after-free")
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self.assertEqual(data["instrumentation_class"], "AddressSanitizer")
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self.assertEqual(data["stop_type"], "fatal_error")
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# now let's try the SB API
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process = self.dbg.GetSelectedTarget().process
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thread = process.GetSelectedThread()
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s = lldb.SBStream()
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self.assertTrue(thread.GetStopReasonExtendedInfoAsJSON(s))
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s = s.GetData()
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data2 = json.loads(s)
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self.assertEqual(data, data2)
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