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# TestAsanSwift.py
#
# This source file is part of the Swift.org open source project
#
# Copyright (c) 2014 - 2016 Apple Inc. and the Swift project authors
# Licensed under Apache License v2.0 with Runtime Library Exception
#
# See https://swift.org/LICENSE.txt for license information
# See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
#
# ------------------------------------------------------------------------------
"""
Test Swift support of ASan.
"""
import lldb
import lldbsuite.test.decorators as decorators
import lldbsuite.test.lldbtest as lldbtest
import lldbsuite.test.lldbutil as lldbutil
import os
import unittest2
import json
class AsanSwiftTestCase(lldbtest.TestBase):
mydir = lldbtest.TestBase.compute_mydir(__file__)
@decorators.swiftTest
@decorators.skipIfLinux
@decorators.skipUnlessSwiftAddressSanitizer
def test_asan_swift(self):
self.build()
self.do_test()
def setUp(self):
lldbtest.TestBase.setUp(self)
self.main_source = "main.swift"
self.main_source_spec = lldb.SBFileSpec(self.main_source)
self.line_breakpoint = lldbtest.line_number(
self.main_source, '// breakpoint')
def do_test(self):
exe_name = "a.out"
exe = self.getBuildArtifact(exe_name)
# Create the target
target = self.dbg.CreateTarget(exe)
self.assertTrue(target, lldbtest.VALID_TARGET)
runtimes = []
for m in target.module_iter():
libspec = m.GetFileSpec()
if "clang_rt" in libspec.GetFilename():
runtimes.append(os.path.join(libspec.GetDirectory(), libspec.GetFilename()))
self.registerSharedLibrariesWithTarget(target, runtimes)
self.runCmd(
"breakpoint set -f %s -l %d" %
(self.main_source, self.line_breakpoint))
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")
# the stop reason of the thread should be breakpoint.
self.expect("thread list", lldbtest.STOPPED_DUE_TO_BREAKPOINT,
substrs=['stopped', 'stop reason = breakpoint'])
self.expect(
"memory history `ptr`",
substrs=[
'Memory allocated by Thread 1',
'main.swift'])
# ASan will break when a report occurs and we'll try the API then
self.runCmd("continue")
# the stop reason of the thread should be a ASan report.
self.expect("thread list", "Heap buffer overflow", substrs=[
'stopped', 'stop reason = Heap buffer overflow'])
process = self.dbg.GetSelectedTarget().process
thread = process.GetSelectedThread()
self.assertEqual(
thread.GetStopReason(),
lldb.eStopReasonInstrumentation)
for i in range(0, thread.GetNumFrames()):
frame = thread.GetFrameAtIndex(i)
if frame.GetFunctionName() == "main":
self.expect("frame select %d" % i, substrs=["at main.swift"])
break
self.expect(
"memory history `ptr`",
substrs=[
'Memory allocated by Thread 1',
'main.swift'])
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