| """ |
| Test the AddressSanitizer runtime support for report breakpoint and data extraction. |
| """ |
| |
| from __future__ import print_function |
| |
| |
| import os |
| import time |
| import json |
| import lldb |
| from lldbsuite.test.decorators import * |
| from lldbsuite.test.lldbtest import * |
| from lldbsuite.test import lldbutil |
| |
| |
| class AsanTestReportDataCase(TestBase): |
| |
| mydir = TestBase.compute_mydir(__file__) |
| |
| @expectedFailureAll( |
| oslist=["linux"], |
| bugnumber="non-core functionality, need to reenable and fix later (DES 2014.11.07)") |
| @skipIfFreeBSD # llvm.org/pr21136 runtimes not yet available by default |
| @skipIfRemote |
| @skipUnlessAddressSanitizer |
| @skipIf(archs=['i386'], bugnumber="llvm.org/PR36710") |
| def test(self): |
| self.build() |
| 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') |
| |
| def asan_tests(self): |
| exe = self.getBuildArtifact("a.out") |
| self.expect( |
| "file " + exe, |
| patterns=["Current executable set to .*a.out"]) |
| 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) |
| |
| self.expect("bt", "The backtrace should show the crashing line", |
| substrs=['main.c:%d' % self.line_crash]) |
| |
| self.expect( |
| "thread info -s", |
| "The extended stop info should contain the ASan provided fields", |
| substrs=[ |
| "access_size", |
| "access_type", |
| "address", |
| "pc", |
| "description", |
| "heap-use-after-free"]) |
| |
| 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) |
