1"""
2Test that SBProcess.LoadImageUsingPaths uses RTLD_LAZY
3"""
4
5
6
7import os
8import shutil
9import lldb
10from lldbsuite.test.decorators import *
11from lldbsuite.test.lldbtest import *
12from lldbsuite.test import lldbutil
13
14
15class LoadUsingLazyBind(TestBase):
16
17    mydir = TestBase.compute_mydir(__file__)
18    NO_DEBUG_INFO_TESTCASE = True
19
20    @skipIfRemote
21    @skipIfWindows # The Windows platform doesn't implement DoLoadImage.
22    @skipIf(oslist=["linux"], archs=["arm"]) # Fails on arm/linux
23    # Failing for unknown reasons on Linux, see
24    # https://bugs.llvm.org/show_bug.cgi?id=49656.
25    def test_load_using_lazy_bind(self):
26        """Test that we load using RTLD_LAZY"""
27
28        self.build()
29        wd = os.path.realpath(self.getBuildDir())
30
31        def make_lib_name(name):
32            return (self.platformContext.shlib_prefix + name + "." +
33                    self.platformContext.shlib_extension)
34
35        def make_lib_path(name):
36            libpath = os.path.join(wd, make_lib_name(name))
37            self.assertTrue(os.path.exists(libpath))
38            return libpath
39
40        libt2_0 = make_lib_path('t2_0')
41        libt2_1 = make_lib_path('t2_1')
42
43        # Overwrite t2_0 with t2_1 to delete the definition of `use`.
44        shutil.copy(libt2_1, libt2_0)
45
46        # Launch a process and break
47        (target, process, thread, _) = lldbutil.run_to_source_breakpoint(self,
48                                                "break here",
49                                                lldb.SBFileSpec("main.cpp"),
50                                                extra_images=["t1"])
51
52        # Load libt1; should fail unless we use RTLD_LAZY
53        error = lldb.SBError()
54        lib_spec = lldb.SBFileSpec(make_lib_name('t1'))
55        paths = lldb.SBStringList()
56        paths.AppendString(wd)
57        out_spec = lldb.SBFileSpec()
58        token = process.LoadImageUsingPaths(lib_spec, paths, out_spec, error)
59        self.assertNotEqual(token, lldb.LLDB_INVALID_IMAGE_TOKEN, "Got a valid token")
60
61        # Calling `f1()` should return 5.
62        frame = thread.GetFrameAtIndex(0)
63        val = frame.EvaluateExpression("f1()")
64        self.assertTrue(val.IsValid())
65        self.assertEquals(val.GetValueAsSigned(-1), 5)
66