Author: jingham
Date: Thu Jul 14 20:41:54 2016
New Revision: 275519
URL: http://llvm.org/viewvc/llvm-project?rev=275519&view=rev
Log:
Remember to add the testcase I wrote for r274822.
Added:
lldb/trunk/packages/Python/lldbsuite/test/expression_command/unwind_expression/
lldb/trunk/packages/Python/lldbsuite/test/expression_command/unwind_expression/Makefile
lldb/trunk/packages/Python/lldbsuite/test/expression_command/unwind_expression/TestUnwindExpression.py
lldb/trunk/packages/Python/lldbsuite/test/expression_command/unwind_expression/main.cpp
Added:
lldb/trunk/packages/Python/lldbsuite/test/expression_command/unwind_expression/Makefile
URL:
http://llvm.org/viewvc/llvm-project/lldb/trunk/packages/Python/lldbsuite/test/expression_command/unwind_expression/Makefile?rev=275519&view=auto
==============================================================================
---
lldb/trunk/packages/Python/lldbsuite/test/expression_command/unwind_expression/Makefile
(added)
+++
lldb/trunk/packages/Python/lldbsuite/test/expression_command/unwind_expression/Makefile
Thu Jul 14 20:41:54 2016
@@ -0,0 +1,5 @@
+LEVEL = ../../make
+
+CXX_SOURCES := main.cpp
+
+include $(LEVEL)/Makefile.rules
Added:
lldb/trunk/packages/Python/lldbsuite/test/expression_command/unwind_expression/TestUnwindExpression.py
URL:
http://llvm.org/viewvc/llvm-project/lldb/trunk/packages/Python/lldbsuite/test/expression_command/unwind_expression/TestUnwindExpression.py?rev=275519&view=auto
==============================================================================
---
lldb/trunk/packages/Python/lldbsuite/test/expression_command/unwind_expression/TestUnwindExpression.py
(added)
+++
lldb/trunk/packages/Python/lldbsuite/test/expression_command/unwind_expression/TestUnwindExpression.py
Thu Jul 14 20:41:54 2016
@@ -0,0 +1,83 @@
+"""
+Test stopping at a breakpoint in an expression, and unwinding from there.
+"""
+
+from __future__ import print_function
+
+
+
+import unittest2
+
+import os, time
+import lldb
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test import lldbutil
+
+class UnwindFromExpressionTest(TestBase):
+
+ mydir = TestBase.compute_mydir(__file__)
+
+ def setUp(self):
+ # Call super's setUp().
+ TestBase.setUp(self)
+
+ @add_test_categories(['pyapi'])
+
+ def test_unwind_expression(self):
+ """Test unwinding from an expression."""
+ self.build()
+
+ exe = os.path.join(os.getcwd(), "a.out")
+
+ target = self.dbg.CreateTarget(exe)
+ self.assertTrue(target, VALID_TARGET)
+
+ # Create the breakpoint.
+ main_spec = lldb.SBFileSpec("main.cpp", False)
+ breakpoint = target.BreakpointCreateBySourceRegex("// Set a breakpoint
here to get started", main_spec)
+ self.assertTrue(breakpoint, VALID_BREAKPOINT)
+
+ # Launch the process, and do not stop at the entry point.
+ process = target.LaunchSimple (None, None,
self.get_process_working_directory())
+
+ if not process:
+ self.fail("SBTarget.LaunchProcess() failed")
+
+ if process.GetState() != lldb.eStateStopped:
+ self.fail("Process should be in the 'stopped' state, "
+ "instead the actual state is: '%s'" %
+ lldbutil.state_type_to_str(process.GetState()))
+
+ thread = lldbutil.get_one_thread_stopped_at_breakpoint(process,
breakpoint)
+ self.assertIsNotNone(thread, "Expected one thread to be stopped at the
breakpoint")
+
+ #
+ # Use Python API to evaluate expressions while stopped in a stack
frame.
+ #
+ main_frame = thread.GetFrameAtIndex(0)
+
+ # Next set a breakpoint in this function, set up Expression options to
stop on
+ # breakpoint hits, and call the function.
+ fun_bkpt = target.BreakpointCreateBySourceRegex("// Stop inside the
function here.", main_spec)
+ self.assertTrue(fun_bkpt, VALID_BREAKPOINT)
+ options = lldb.SBExpressionOptions()
+ options.SetIgnoreBreakpoints(False)
+ options.SetUnwindOnError(False)
+
+ val = main_frame.EvaluateExpression("a_function_to_call()", options)
+
+ self.assertTrue(val.GetError().Fail(), "We did not complete the
execution.")
+ error_str = val.GetError().GetCString()
+ self.assertTrue("Execution was interrupted, reason: breakpoint" in
error_str, "And the reason was right.")
+
+ thread = lldbutil.get_one_thread_stopped_at_breakpoint(process,
fun_bkpt)
+ self.assertTrue(thread.IsValid(), "We are indeed stopped at our
breakpoint")
+
+ # Now unwind the expression, and make sure we got back to where we
started.
+ error = thread.UnwindInnermostExpression()
+ self.assertTrue(error.Success(), "We succeeded in unwinding")
+
+ cur_frame = thread.GetFrameAtIndex(0)
+ self.assertTrue(cur_frame.IsEqual(main_frame), "We got back to the
main frame.")
+
Added:
lldb/trunk/packages/Python/lldbsuite/test/expression_command/unwind_expression/main.cpp
URL:
http://llvm.org/viewvc/llvm-project/lldb/trunk/packages/Python/lldbsuite/test/expression_command/unwind_expression/main.cpp?rev=275519&view=auto
==============================================================================
---
lldb/trunk/packages/Python/lldbsuite/test/expression_command/unwind_expression/main.cpp
(added)
+++
lldb/trunk/packages/Python/lldbsuite/test/expression_command/unwind_expression/main.cpp
Thu Jul 14 20:41:54 2016
@@ -0,0 +1,14 @@
+static int static_value = 0;
+
+int
+a_function_to_call()
+{
+ static_value++; // Stop inside the function here.
+ return static_value;
+}
+
+int main (int argc, char const *argv[])
+{
+ a_function_to_call(); // Set a breakpoint here to get started
+ return 0;
+}
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