988ffd0672
The previous patch was reverted because the test fails to build when libsanitizers is not present. This patch catches the BuildError exception and skips the test appropriately. This patch tests LLDB integration with libsanitizers for ASan. rdar://111856681
106 lines
3.5 KiB
Python
106 lines
3.5 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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import json
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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_event.build_exception import BuildError
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class AsanTestReportDataCase(TestBase):
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@skipIfFreeBSD # llvm.org/pr21136 runtimes not yet available by default
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@expectedFailureNetBSD
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@skipUnlessAddressSanitizer
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@skipIf(archs=["i386"], bugnumber="llvm.org/PR36710")
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def test(self):
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self.build(make_targets=["asan"])
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self.asan_tests()
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@skipIf(oslist=no_match(["macosx"]))
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def test_libsanitizers_asan(self):
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try:
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self.build(make_targets=["libsanitizers"])
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except BuildError as e:
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self.skipTest("failed to build with libsanitizers")
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self.asan_tests(libsanitizers=True)
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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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self.col_crash = 16
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def asan_tests(self, libsanitizers=False):
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target = self.createTestTarget()
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if libsanitizers:
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self.runCmd(
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"env SanitizersAddress=1 MallocSanitizerZone=1 MallocSecureAllocator=0"
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)
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else:
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self.registerSanitizerLibrariesWithTarget(target)
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self.runCmd("run")
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stop_reason = (
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self.dbg.GetSelectedTarget().process.GetSelectedThread().GetStopReason()
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)
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if stop_reason == lldb.eStopReasonExec:
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# On OS X 10.10 and older, we need to re-exec to enable
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# interceptors.
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self.runCmd("continue")
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self.expect(
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"thread list",
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"Process should be stopped due to ASan report",
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substrs=["stopped", "stop reason = Use of deallocated memory"],
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)
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self.assertEqual(
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self.dbg.GetSelectedTarget().process.GetSelectedThread().GetStopReason(),
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lldb.eStopReasonInstrumentation,
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)
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self.expect(
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"bt",
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"The backtrace should show the crashing line",
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substrs=["main.c:%d:%d" % (self.line_crash, self.col_crash)],
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)
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self.expect(
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"thread info -s",
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"The extended stop info should contain the ASan provided fields",
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substrs=[
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"access_size",
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"access_type",
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"address",
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"description",
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"heap-use-after-free",
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"pc",
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],
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)
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output_lines = self.res.GetOutput().split("\n")
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json_line = "\n".join(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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