| """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): |
| @skipIfOutOfTreeDebugserver # newer debugserver required for these qMemoryRegionInfo types |
| @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, '""') |
