| """ | |
| Test the AddressSanitizer runtime support for report breakpoint and data extraction. | |
| """ | |
| import json | |
| import lldb | |
| from lldbsuite.test.decorators import * | |
| from lldbsuite.test.lldbtest import * | |
| from lldbsuite.test import lldbutil | |
| class AsanTestReportDataCase(TestBase): | |
| SHARED_BUILD_TESTCASE = False | |
| @skipIfFreeBSD # llvm.org/pr21136 runtimes not yet available by default | |
| @expectedFailureNetBSD | |
| @skipUnlessAddressSanitizer | |
| @skipIf(archs=["i386"], bugnumber="llvm.org/PR36710") | |
| def test(self): | |
| self.build(make_targets=["compiler_rt-asan"]) | |
| self.asan_tests() | |
| def setUp(self): | |
| # Call super's setUp(). | |
| TestBase.setUp(self) | |
| self.line_malloc = line_number("main.c", "// malloc line") | |
| self.line_malloc2 = line_number("main.c", "// malloc2 line") | |
| self.line_free = line_number("main.c", "// free line") | |
| self.line_breakpoint = line_number("main.c", "// break line") | |
| self.line_crash = line_number("main.c", "// BOOM line") | |
| self.col_crash = 16 | |
| def asan_tests(self): | |
| target = self.createTestTarget() | |
| self.registerSanitizerLibrariesWithTarget(target) | |
| self.runCmd("run") | |
| stop_reason = ( | |
| self.dbg.GetSelectedTarget().process.GetSelectedThread().GetStopReason() | |
| ) | |
| if stop_reason == lldb.eStopReasonExec: | |
| # On OS X 10.10 and older, we need to re-exec to enable | |
| # interceptors. | |
| self.runCmd("continue") | |
| self.expect( | |
| "thread list", | |
| "Process should be stopped due to ASan report", | |
| substrs=["stopped", "stop reason = Use of deallocated memory"], | |
| ) | |
| self.assertEqual( | |
| self.dbg.GetSelectedTarget().process.GetSelectedThread().GetStopReason(), | |
| lldb.eStopReasonInstrumentation, | |
| ) | |
| if self.platformIsDarwin(): | |
| # Make sure we're not stopped in the sanitizer library but instead at the | |
| # point of failure in the user-code. | |
| self.assertEqual(self.frame().GetFunctionName(), "main") | |
| self.expect( | |
| "bt", | |
| "The backtrace should show the crashing line", | |
| substrs=["main.c:%d:%d" % (self.line_crash, self.col_crash)], | |
| ) | |
| self.expect( | |
| "thread info -s", | |
| "The extended stop info should contain the ASan provided fields", | |
| substrs=[ | |
| "access_size", | |
| "access_type", | |
| "address", | |
| "description", | |
| "heap-use-after-free", | |
| "pc", | |
| ], | |
| ) | |
| output_lines = self.res.GetOutput().split("\n") | |
| json_line = "\n".join(output_lines[2:]) | |
| data = json.loads(json_line) | |
| self.assertEqual(data["description"], "heap-use-after-free") | |
| self.assertEqual(data["instrumentation_class"], "AddressSanitizer") | |
| self.assertEqual(data["stop_type"], "fatal_error") | |
| # now let's try the SB API | |
| process = self.dbg.GetSelectedTarget().process | |
| thread = process.GetSelectedThread() | |
| s = lldb.SBStream() | |
| self.assertTrue(thread.GetStopReasonExtendedInfoAsJSON(s)) | |
| s = s.GetData() | |
| data2 = json.loads(s) | |
| self.assertEqual(data, data2) |