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 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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