diff options
Diffstat (limited to 'packages/Python/lldbsuite/test/functionalities/postmortem/minidump')
5 files changed, 186 insertions, 0 deletions
diff --git a/packages/Python/lldbsuite/test/functionalities/postmortem/minidump/Makefile b/packages/Python/lldbsuite/test/functionalities/postmortem/minidump/Makefile new file mode 100644 index 000000000000..b3034c12abd9 --- /dev/null +++ b/packages/Python/lldbsuite/test/functionalities/postmortem/minidump/Makefile @@ -0,0 +1,6 @@ +LEVEL = ../../../make + +CXX_SOURCES := main.cpp + +include $(LEVEL)/Makefile.rules + 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 000000000000..53888502a3aa --- /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) diff --git a/packages/Python/lldbsuite/test/functionalities/postmortem/minidump/fizzbuzz.cpp b/packages/Python/lldbsuite/test/functionalities/postmortem/minidump/fizzbuzz.cpp new file mode 100644 index 000000000000..eb6476bfd9a9 --- /dev/null +++ b/packages/Python/lldbsuite/test/functionalities/postmortem/minidump/fizzbuzz.cpp @@ -0,0 +1,31 @@ +// A sample program for getting minidumps on Windows.
+
+#include <iostream>
+
+bool
+fizz(int x)
+{
+ return x % 3 == 0;
+}
+
+bool
+buzz(int x)
+{
+ return x % 5 == 0;
+}
+
+int
+main()
+{
+ int *buggy = 0;
+
+ for (int i = 1; i <= 100; ++i)
+ {
+ if (fizz(i)) std::cout << "fizz";
+ if (buzz(i)) std::cout << "buzz";
+ if (!fizz(i) && !buzz(i)) std::cout << i;
+ std::cout << '\n';
+ }
+
+ return *buggy;
+}
diff --git a/packages/Python/lldbsuite/test/functionalities/postmortem/minidump/fizzbuzz_no_heap.dmp b/packages/Python/lldbsuite/test/functionalities/postmortem/minidump/fizzbuzz_no_heap.dmp Binary files differnew file mode 100644 index 000000000000..19008c91fc3e --- /dev/null +++ b/packages/Python/lldbsuite/test/functionalities/postmortem/minidump/fizzbuzz_no_heap.dmp diff --git a/packages/Python/lldbsuite/test/functionalities/postmortem/minidump/main.cpp b/packages/Python/lldbsuite/test/functionalities/postmortem/minidump/main.cpp new file mode 100644 index 000000000000..4037ea522cac --- /dev/null +++ b/packages/Python/lldbsuite/test/functionalities/postmortem/minidump/main.cpp @@ -0,0 +1,21 @@ +int global = 42; + +int +bar(int x) +{ + int y = 4*x + global; + return y; +} + +int +foo(int x) +{ + int y = 2*bar(3*x); + return y; +} + +int +main() +{ + return 0 * foo(1); +} |