1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class TestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
NO_DEBUG_INFO_TESTCASE = True
@skipIfRemote
def test_load_after_attach(self):
self.build()
ctx = self.platformContext
lib_name = ctx.shlib_prefix + 'lib_b.' + ctx.shlib_extension
exe = self.getBuildArtifact("a.out")
lib = self.getBuildArtifact(lib_name)
target = self.dbg.CreateTarget(exe)
environment = self.registerSharedLibrariesWithTarget(target, ["lib_b"])
# Spawn a new process.
# use realpath to workaround llvm.org/pr48376
# Pass path to solib for dlopen to properly locate the library.
popen = self.spawnSubprocess(os.path.realpath(exe), extra_env=environment)
# Attach to the spawned process.
error = lldb.SBError()
process = target.AttachToProcessWithID(self.dbg.GetListener(),
popen.pid, error)
self.assertSuccess(error)
# Continue until first breakpoint.
breakpoint1 = self.target().BreakpointCreateBySourceRegex(
"// break here", lldb.SBFileSpec("main.cpp"))
self.assertEqual(breakpoint1.GetNumResolvedLocations(), 1)
stopped_threads = lldbutil.continue_to_breakpoint(self.process(), breakpoint1)
self.assertEqual(len(stopped_threads), 1)
# Change a variable to escape the loop
self.runCmd("expression main_thread_continue = 1")
# Continue so that dlopen is called.
breakpoint2 = self.target().BreakpointCreateBySourceRegex(
"// break after dlopen", lldb.SBFileSpec("main.cpp"))
self.assertEqual(breakpoint2.GetNumResolvedLocations(), 1)
stopped_threads = lldbutil.continue_to_breakpoint(self.process(), breakpoint2)
self.assertEqual(len(stopped_threads), 1)
# Check that image list contains liblib_b after dlopen.
self.match(
"image list",
patterns = [lib_name],
matching = True,
msg = lib_name + " missing in image list")
|
