| """ |
| Test lldb data formatter subsystem. |
| """ |
| |
| from __future__ import print_function |
| |
| |
| import lldb |
| from lldbsuite.test.decorators import * |
| from lldbsuite.test.lldbtest import * |
| from lldbsuite.test import lldbutil |
| |
| |
| class LibCxxAtomicTestCase(TestBase): |
| |
| mydir = TestBase.compute_mydir(__file__) |
| |
| def get_variable(self, name): |
| var = self.frame().FindVariable(name) |
| var.SetPreferDynamicValue(lldb.eDynamicCanRunTarget) |
| var.SetPreferSyntheticValue(True) |
| return var |
| |
| @skipIf(compiler=["gcc"]) |
| @add_test_categories(["libc++"]) |
| def test(self): |
| """Test that std::atomic as defined by libc++ is correctly printed by LLDB""" |
| self.build() |
| self.runCmd("file " + self.getBuildArtifact("a.out"), CURRENT_EXECUTABLE_SET) |
| |
| bkpt = self.target().FindBreakpointByID( |
| lldbutil.run_break_set_by_source_regexp( |
| self, "Set break point at this line.")) |
| |
| self.runCmd("run", RUN_SUCCEEDED) |
| |
| lldbutil.skip_if_library_missing( |
| self, self.target(), lldbutil.PrintableRegex("libc\+\+")) |
| |
| # The stop reason of the thread should be breakpoint. |
| self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT, |
| substrs=['stopped', |
| 'stop reason = breakpoint']) |
| |
| s_atomic = self.get_variable('s') |
| i_atomic = self.get_variable('i') |
| |
| if self.TraceOn(): |
| print(s_atomic) |
| if self.TraceOn(): |
| print(i_atomic) |
| |
| # Extract the content of the std::atomic wrappers. |
| self.assertEqual(s_atomic.GetNumChildren(), 1) |
| s = s_atomic.GetChildAtIndex(0) |
| self.assertEqual(i_atomic.GetNumChildren(), 1) |
| i = i_atomic.GetChildAtIndex(0) |
| |
| self.assertEqual(i.GetValueAsUnsigned(0), 5, "i == 5") |
| self.assertEqual(s.GetNumChildren(), 2, "s has two children") |
| self.assertEqual( |
| s.GetChildAtIndex(0).GetValueAsUnsigned(0), 1, |
| "s.x == 1") |
| self.assertEqual( |
| s.GetChildAtIndex(1).GetValueAsUnsigned(0), 2, |
| "s.y == 2") |
| |
| # Try printing the child that points to its own parent object. |
| # This should just treat the atomic pointer as a normal pointer. |
| self.expect("frame var p.child", substrs=["Value = 0x"]) |
| self.expect("frame var p", substrs=["parent = {", "Value = 0x", "}"]) |
| self.expect("frame var p.child.parent", substrs=["p.child.parent = {\n Value = 0x"]) |
