Vendor import of lldb trunk r256945:

https://llvm.org/svn/llvm-project/lldb/trunk@256945

1 files changed, 128 insertions, 0 deletions

diff --git a/packages/Python/lldbsuite/test/functionalities/postmortem/minidump/TestMiniDump.py b/packages/Python/lldbsuite/test/functionalities/postmortem/minidump/TestMiniDump.py
new file mode 100644
index 0000000..5388850
--- /dev/null
+++ b/packages/Python/lldbsuite/test/functionalities/postmortem/minidump/TestMiniDump.py
@@ -0,0 +1,128 @@
+"""
+Test basics of mini dump debugging.
+"""
+
+from __future__ import print_function
+
+
+
+import lldb
+from lldbsuite.test.lldbtest import *
+import lldbsuite.test.lldbutil as lldbutil
+
+class MiniDumpTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    @skipUnlessWindows  # for now mini-dump debugging is limited to Windows hosts
+    @no_debug_info_test
+    def test_process_info_in_mini_dump(self):
+        """Test that lldb can read the process information from the minidump."""
+        # target create -c fizzbuzz_no_heap.dmp
+        self.dbg.CreateTarget("")
+        self.target = self.dbg.GetSelectedTarget()
+        self.process = self.target.LoadCore("fizzbuzz_no_heap.dmp")
+        self.assertTrue(self.process, PROCESS_IS_VALID)
+        self.assertEqual(self.process.GetNumThreads(), 1)
+        self.assertEqual(self.process.GetProcessID(), 4440)
+
+    @skipUnlessWindows  # for now mini-dump debugging is limited to Windows hosts
+    @no_debug_info_test
+    def test_thread_info_in_mini_dump(self):
+        """Test that lldb can read the thread information from the minidump."""
+        # target create -c fizzbuzz_no_heap.dmp
+        self.dbg.CreateTarget("")
+        self.target = self.dbg.GetSelectedTarget()
+        self.process = self.target.LoadCore("fizzbuzz_no_heap.dmp")
+        # This process crashed due to an access violation (0xc0000005) in its one and only thread.
+        self.assertEqual(self.process.GetNumThreads(), 1)
+        thread = self.process.GetThreadAtIndex(0)
+        self.assertEqual(thread.GetStopReason(), lldb.eStopReasonException)
+        stop_description = thread.GetStopDescription(256);
+        self.assertTrue("0xc0000005" in stop_description);
+
+    @skipUnlessWindows  # for now mini-dump debugging is limited to Windows hosts
+    @no_debug_info_test
+    def test_stack_info_in_mini_dump(self):
+        """Test that we can see a trivial stack in a VS-generate mini dump."""
+        # target create -c fizzbuzz_no_heap.dmp
+        self.dbg.CreateTarget("")
+        self.target = self.dbg.GetSelectedTarget()
+        self.process = self.target.LoadCore("fizzbuzz_no_heap.dmp")
+        self.assertEqual(self.process.GetNumThreads(), 1)
+        thread = self.process.GetThreadAtIndex(0)
+        # The crash is in main, so there should be one frame on the stack.
+        self.assertEqual(thread.GetNumFrames(), 1)
+        frame = thread.GetFrameAtIndex(0)
+        self.assertTrue(frame.IsValid())
+        pc = frame.GetPC()
+        eip = frame.FindRegister("pc")
+        self.assertTrue(eip.IsValid())
+        self.assertEqual(pc, eip.GetValueAsUnsigned())
+
+    @skipUnlessWindows
+    @not_remote_testsuite_ready
+    def test_deeper_stack_in_mini_dump(self):
+        """Test that we can examine a more interesting stack in a mini dump."""
+        self.build()
+        exe = os.path.join(os.getcwd(), "a.out")
+        core = os.path.join(os.getcwd(), "core.dmp")
+        try:
+            # Set a breakpoint and capture a mini dump.
+            target = self.dbg.CreateTarget(exe)
+            breakpoint = target.BreakpointCreateByName("bar")
+            process = target.LaunchSimple(None, None, self.get_process_working_directory())
+            self.assertEqual(process.GetState(), lldb.eStateStopped)
+            self.assertTrue(process.SaveCore(core))
+            self.assertTrue(os.path.isfile(core))
+            self.assertTrue(process.Kill().Success())
+
+            # Launch with the mini dump, and inspect the stack.
+            target = self.dbg.CreateTarget(None)
+            process = target.LoadCore(core)
+            thread = process.GetThreadAtIndex(0)
+
+            expected_stack = { 0: 'bar', 1: 'foo', 2: 'main' }
+            self.assertEqual(thread.GetNumFrames(), len(expected_stack))
+            for index, name in expected_stack.iteritems():
+                frame = thread.GetFrameAtIndex(index)
+                self.assertTrue(frame.IsValid())
+                function_name = frame.GetFunctionName()
+                self.assertTrue(name in function_name)
+
+        finally:
+            # Clean up the mini dump file.
+            self.assertTrue(self.dbg.DeleteTarget(target))
+            if (os.path.isfile(core)):
+                os.unlink(core)
+
+    @skipUnlessWindows
+    @not_remote_testsuite_ready
+    def test_local_variables_in_mini_dump(self):
+        """Test that we can examine local variables in a mini dump."""
+        self.build()
+        exe = os.path.join(os.getcwd(), "a.out")
+        core = os.path.join(os.getcwd(), "core.dmp")
+        try:
+            # Set a breakpoint and capture a mini dump.
+            target = self.dbg.CreateTarget(exe)
+            breakpoint = target.BreakpointCreateByName("bar")
+            process = target.LaunchSimple(None, None, self.get_process_working_directory())
+            self.assertEqual(process.GetState(), lldb.eStateStopped)
+            self.assertTrue(process.SaveCore(core))
+            self.assertTrue(os.path.isfile(core))
+            self.assertTrue(process.Kill().Success())
+
+            # Launch with the mini dump, and inspect a local variable.
+            target = self.dbg.CreateTarget(None)
+            process = target.LoadCore(core)
+            thread = process.GetThreadAtIndex(0)
+            frame = thread.GetFrameAtIndex(0)
+            value = frame.EvaluateExpression('x')
+            self.assertEqual(value.GetValueAsSigned(), 3)
+
+        finally:
+            # Clean up the mini dump file.
+            self.assertTrue(self.dbg.DeleteTarget(target))
+            if (os.path.isfile(core)):
+                os.unlink(core)