| """Test that lldb can create a stack-only corefile, and load the main binary.""" | |
| import os | |
| import re | |
| import subprocess | |
| import lldb | |
| from lldbsuite.test.decorators import * | |
| from lldbsuite.test.lldbtest import * | |
| from lldbsuite.test import lldbutil | |
| class TestStackCorefile(TestBase): | |
| @no_debug_info_test | |
| @skipUnlessDarwin | |
| @skipIfRemote | |
| def test(self): | |
| corefile = self.getBuildArtifact("process.core") | |
| self.build() | |
| (target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint( | |
| self, "// break here", lldb.SBFileSpec("main.c") | |
| ) | |
| frame = thread.GetFrameAtIndex(0) | |
| stack_int = frame.GetValueForVariablePath("stack_int") | |
| heap_int = frame.GetValueForVariablePath("*heap_int") | |
| stack_str = frame.GetValueForVariablePath("stack_str") | |
| heap_str = frame.GetValueForVariablePath("heap_str") | |
| self.assertEqual(stack_int.GetValueAsUnsigned(), 5) | |
| self.assertEqual(heap_int.GetValueAsUnsigned(), 10) | |
| self.assertEqual(stack_str.summary, '"stack string"') | |
| self.assertEqual(heap_str.summary, '"heap string"') | |
| self.runCmd("process save-core -s stack " + corefile) | |
| process.Kill() | |
| self.dbg.DeleteTarget(target) | |
| # Now load the corefile | |
| target = self.dbg.CreateTarget("") | |
| process = target.LoadCore(corefile) | |
| thread = process.GetSelectedThread() | |
| self.assertTrue(process.IsValid()) | |
| self.assertTrue(process.GetSelectedThread().IsValid()) | |
| if self.TraceOn(): | |
| self.runCmd("image list") | |
| self.runCmd("bt") | |
| self.runCmd("fr v") | |
| num_modules = target.GetNumModules() | |
| # We should only have the a.out binary and possibly | |
| # the libdyld.dylib. Extra libraries loaded means | |
| # extra LC_NOTE and unnecessarily large corefile. | |
| self.assertTrue(num_modules == 1 or num_modules == 2) | |
| # The heap variables should be unavailable now. | |
| frame = thread.GetFrameAtIndex(0) | |
| stack_int = frame.GetValueForVariablePath("stack_int") | |
| heap_int = frame.GetValueForVariablePath("*heap_int") | |
| stack_str = frame.GetValueForVariablePath("stack_str") | |
| heap_str = frame.GetValueForVariablePath("heap_str") | |
| ## The heap SBValues both come back as IsValid()==true, | |
| ## which I'm not so sure is a great/correct thing -- | |
| ## it hides the memory read error that actually happened, | |
| ## and we don't have a real value. | |
| self.assertEqual(stack_int.GetValueAsUnsigned(), 5) | |
| self.assertEqual(heap_int.GetValueAsUnsigned(), 0) | |
| self.assertEqual(stack_str.summary, '"stack string"') | |
| self.assertEqual(heap_str.summary, '""') |