diff options
Diffstat (limited to 'packages/Python/lldbsuite/test/lang/cpp/dynamic-value')
5 files changed, 506 insertions, 0 deletions
diff --git a/packages/Python/lldbsuite/test/lang/cpp/dynamic-value/Makefile b/packages/Python/lldbsuite/test/lang/cpp/dynamic-value/Makefile new file mode 100644 index 0000000..8770b23 --- /dev/null +++ b/packages/Python/lldbsuite/test/lang/cpp/dynamic-value/Makefile @@ -0,0 +1,5 @@ +LEVEL = ../../../make + +CXX_SOURCES := pass-to-base.cpp + +include $(LEVEL)/Makefile.rules diff --git a/packages/Python/lldbsuite/test/lang/cpp/dynamic-value/TestCppValueCast.py b/packages/Python/lldbsuite/test/lang/cpp/dynamic-value/TestCppValueCast.py new file mode 100644 index 0000000..4e23cd8 --- /dev/null +++ b/packages/Python/lldbsuite/test/lang/cpp/dynamic-value/TestCppValueCast.py @@ -0,0 +1,129 @@ +""" +Test lldb Python API SBValue::Cast(SBType) for C++ types. +""" + +from __future__ import print_function + + + +import unittest2 +import os, time +import re +import lldb +import lldbsuite.test.lldbutil as lldbutil +from lldbsuite.test.lldbtest import * + +class CppValueCastTestCase(TestBase): + + mydir = TestBase.compute_mydir(__file__) + + @unittest2.expectedFailure("rdar://problem/10808472 SBValue::Cast test case is failing (virtual inheritance)") + @add_test_categories(['pyapi']) + def test_value_cast_with_virtual_inheritance(self): + """Test SBValue::Cast(SBType) API for C++ types with virtual inheritance.""" + self.build(dictionary=self.d_virtual) + self.setTearDownCleanup(dictionary=self.d_virtual) + self.do_sbvalue_cast(self.exe_name) + + @add_test_categories(['pyapi']) + def test_value_cast_with_regular_inheritance(self): + """Test SBValue::Cast(SBType) API for C++ types with regular inheritance.""" + self.build(dictionary=self.d_regular) + self.setTearDownCleanup(dictionary=self.d_regular) + self.do_sbvalue_cast(self.exe_name) + + def setUp(self): + # Call super's setUp(). + TestBase.setUp(self) + + # Find the line number to break for main.c. + self.source = 'sbvalue-cast.cpp'; + self.line = line_number(self.source, '// Set breakpoint here.') + self.exe_name = self.testMethodName + self.d_virtual = {'CXX_SOURCES': self.source, 'EXE': self.exe_name, 'CFLAGS_EXTRAS': '-DDO_VIRTUAL_INHERITANCE'} + self.d_regular = {'CXX_SOURCES': self.source, 'EXE': self.exe_name} + + def do_sbvalue_cast (self, exe_name): + """Test SBValue::Cast(SBType) API for C++ types.""" + exe = os.path.join(os.getcwd(), exe_name) + + # Create a target from the debugger. + + target = self.dbg.CreateTarget (exe) + self.assertTrue(target, VALID_TARGET) + + # Set up our breakpoints: + + breakpoint = target.BreakpointCreateByLocation(self.source, self.line) + self.assertTrue(breakpoint, VALID_BREAKPOINT) + + # Now launch the process, and do not stop at the entry point. + process = target.LaunchSimple (None, None, self.get_process_working_directory()) + + self.assertTrue(process.GetState() == lldb.eStateStopped, + PROCESS_STOPPED) + + # Find DerivedA and DerivedB types. + typeA = target.FindFirstType('DerivedA') + typeB = target.FindFirstType('DerivedB') + self.DebugSBType(typeA) + self.DebugSBType(typeB) + self.assertTrue(typeA) + self.assertTrue(typeB) + error = lldb.SBError() + + # First stop is for DerivedA instance. + threads = lldbutil.get_threads_stopped_at_breakpoint (process, breakpoint) + self.assertTrue (len(threads) == 1) + thread = threads[0] + frame0 = thread.GetFrameAtIndex(0) + + tellerA = frame0.FindVariable('teller', lldb.eNoDynamicValues) + self.DebugSBValue(tellerA) + self.assertTrue(tellerA.GetChildMemberWithName('m_base_val').GetValueAsUnsigned(error, 0) == 20) + + if self.TraceOn(): + for child in tellerA: + print("child name:", child.GetName()) + print(child) + + # Call SBValue.Cast() to obtain instanceA. + instanceA = tellerA.Cast(typeA.GetPointerType()) + self.DebugSBValue(instanceA) + + # Iterate through all the children and print their values. + if self.TraceOn(): + for child in instanceA: + print("child name:", child.GetName()) + print(child) + a_member_val = instanceA.GetChildMemberWithName('m_a_val') + self.DebugSBValue(a_member_val) + self.assertTrue(a_member_val.GetValueAsUnsigned(error, 0) == 10) + + # Second stop is for DerivedB instance. + threads = lldbutil.continue_to_breakpoint (process, breakpoint) + self.assertTrue (len(threads) == 1) + thread = threads[0] + frame0 = thread.GetFrameAtIndex(0) + + tellerB = frame0.FindVariable('teller', lldb.eNoDynamicValues) + self.DebugSBValue(tellerB) + self.assertTrue(tellerB.GetChildMemberWithName('m_base_val').GetValueAsUnsigned(error, 0) == 12) + + if self.TraceOn(): + for child in tellerB: + print("child name:", child.GetName()) + print(child) + + # Call SBValue.Cast() to obtain instanceB. + instanceB = tellerB.Cast(typeB.GetPointerType()) + self.DebugSBValue(instanceB) + + # Iterate through all the children and print their values. + if self.TraceOn(): + for child in instanceB: + print("child name:", child.GetName()) + print(child) + b_member_val = instanceB.GetChildMemberWithName('m_b_val') + self.DebugSBValue(b_member_val) + self.assertTrue(b_member_val.GetValueAsUnsigned(error, 0) == 36) diff --git a/packages/Python/lldbsuite/test/lang/cpp/dynamic-value/TestDynamicValue.py b/packages/Python/lldbsuite/test/lang/cpp/dynamic-value/TestDynamicValue.py new file mode 100644 index 0000000..56e81c5 --- /dev/null +++ b/packages/Python/lldbsuite/test/lang/cpp/dynamic-value/TestDynamicValue.py @@ -0,0 +1,223 @@ +""" +Use lldb Python API to test dynamic values in C++ +""" + +from __future__ import print_function + + + +import os, time +import re +import lldb +import lldbsuite.test.lldbutil as lldbutil +from lldbsuite.test.lldbtest import * + +class DynamicValueTestCase(TestBase): + + mydir = TestBase.compute_mydir(__file__) + + def setUp(self): + # Call super's setUp(). + TestBase.setUp(self) + + # Find the line number to break for main.c. + + self.do_something_line = line_number('pass-to-base.cpp', '// Break here in doSomething.') + self.main_first_call_line = line_number('pass-to-base.cpp', + '// Break here and get real addresses of myB and otherB.') + self.main_second_call_line = line_number('pass-to-base.cpp', + '// Break here and get real address of reallyA.') + + @expectedFailureFreeBSD # FIXME: This needs to be root-caused. + @expectedFailureWindows("llvm.org/pr24663") + @add_test_categories(['pyapi']) + def test_get_dynamic_vals(self): + """Test fetching C++ dynamic values from pointers & references.""" + self.build(dictionary=self.getBuildFlags()) + exe = os.path.join(os.getcwd(), "a.out") + + # Create a target from the debugger. + + target = self.dbg.CreateTarget (exe) + self.assertTrue(target, VALID_TARGET) + + # Set up our breakpoints: + + do_something_bpt = target.BreakpointCreateByLocation('pass-to-base.cpp', self.do_something_line) + self.assertTrue(do_something_bpt, + VALID_BREAKPOINT) + + first_call_bpt = target.BreakpointCreateByLocation('pass-to-base.cpp', self.main_first_call_line) + self.assertTrue(first_call_bpt, + VALID_BREAKPOINT) + + second_call_bpt = target.BreakpointCreateByLocation('pass-to-base.cpp', self.main_second_call_line) + self.assertTrue(second_call_bpt, + VALID_BREAKPOINT) + + # Now launch the process, and do not stop at the entry point. + process = target.LaunchSimple (None, None, self.get_process_working_directory()) + + self.assertTrue(process.GetState() == lldb.eStateStopped, + PROCESS_STOPPED) + + threads = lldbutil.get_threads_stopped_at_breakpoint (process, first_call_bpt) + self.assertTrue (len(threads) == 1) + thread = threads[0] + + frame = thread.GetFrameAtIndex(0) + + # Now find the dynamic addresses of myB and otherB so we can compare them + # with the dynamic values we get in doSomething: + + use_dynamic = lldb.eDynamicCanRunTarget + no_dynamic = lldb.eNoDynamicValues + + myB = frame.FindVariable ('myB', no_dynamic); + self.assertTrue (myB) + myB_loc = int (myB.GetLocation(), 16) + + otherB = frame.FindVariable('otherB', no_dynamic) + self.assertTrue (otherB) + otherB_loc = int (otherB.GetLocation(), 16) + + # Okay now run to doSomething: + + threads = lldbutil.continue_to_breakpoint (process, do_something_bpt) + self.assertTrue (len(threads) == 1) + thread = threads[0] + + frame = thread.GetFrameAtIndex(0) + + # Get "this" using FindVariable: + + this_static = frame.FindVariable ('this', no_dynamic) + this_dynamic = frame.FindVariable ('this', use_dynamic) + self.examine_value_object_of_this_ptr (this_static, this_dynamic, myB_loc) + + # Now make sure that the "GetDynamicValue" works: + # This doesn't work currently because we can't get dynamic values from ConstResult objects. + fetched_dynamic_value = this_static.GetDynamicValue(use_dynamic) + self.examine_value_object_of_this_ptr (this_static, fetched_dynamic_value, myB_loc) + + # And conversely that the GetDynamicValue() interface also works: + fetched_static_value = this_dynamic.GetStaticValue() + self.examine_value_object_of_this_ptr (fetched_static_value, this_dynamic, myB_loc) + + # Get "this" using FindValue, make sure that works too: + this_static = frame.FindValue ('this', lldb.eValueTypeVariableArgument, no_dynamic) + this_dynamic = frame.FindValue ('this', lldb.eValueTypeVariableArgument, use_dynamic) + self.examine_value_object_of_this_ptr (this_static, this_dynamic, myB_loc) + + # Get "this" using the EvaluateExpression: + this_static = frame.EvaluateExpression ('this', False) + this_dynamic = frame.EvaluateExpression ('this', True) + self.examine_value_object_of_this_ptr (this_static, this_dynamic, myB_loc) + + # The "frame var" code uses another path to get into children, so let's + # make sure that works as well: + + self.expect('frame var -d run-target --ptr-depth=2 --show-types anotherA.m_client_A', 'frame var finds its way into a child member', + patterns = ['\(B \*\)']) + + # Now make sure we also get it right for a reference as well: + + anotherA_static = frame.FindVariable ('anotherA', False) + self.assertTrue (anotherA_static) + anotherA_static_addr = int (anotherA_static.GetValue(), 16) + + anotherA_dynamic = frame.FindVariable ('anotherA', True) + self.assertTrue (anotherA_dynamic) + anotherA_dynamic_addr = int (anotherA_dynamic.GetValue(), 16) + anotherA_dynamic_typename = anotherA_dynamic.GetTypeName() + self.assertTrue (anotherA_dynamic_typename.find('B') != -1) + + self.assertTrue(anotherA_dynamic_addr < anotherA_static_addr) + + anotherA_m_b_value_dynamic = anotherA_dynamic.GetChildMemberWithName('m_b_value', True) + self.assertTrue (anotherA_m_b_value_dynamic) + anotherA_m_b_val = int (anotherA_m_b_value_dynamic.GetValue(), 10) + self.assertTrue (anotherA_m_b_val == 300) + + anotherA_m_b_value_static = anotherA_static.GetChildMemberWithName('m_b_value', True) + self.assertFalse (anotherA_m_b_value_static) + + # Okay, now continue again, and when we hit the second breakpoint in main + + threads = lldbutil.continue_to_breakpoint (process, second_call_bpt) + self.assertTrue (len(threads) == 1) + thread = threads[0] + + frame = thread.GetFrameAtIndex(0) + reallyA_value = frame.FindVariable ('reallyA', False) + self.assertTrue(reallyA_value) + reallyA_loc = int (reallyA_value.GetLocation(), 16) + + # Finally continue to doSomething again, and make sure we get the right value for anotherA, + # which this time around is just an "A". + + threads = lldbutil.continue_to_breakpoint (process, do_something_bpt) + self.assertTrue(len(threads) == 1) + thread = threads[0] + + frame = thread.GetFrameAtIndex(0) + anotherA_value = frame.FindVariable ('anotherA', True) + self.assertTrue(anotherA_value) + anotherA_loc = int (anotherA_value.GetValue(), 16) + self.assertTrue (anotherA_loc == reallyA_loc) + self.assertTrue (anotherA_value.GetTypeName().find ('B') == -1) + + def examine_value_object_of_this_ptr (self, this_static, this_dynamic, dynamic_location): + # Get "this" as its static value + self.assertTrue (this_static) + this_static_loc = int (this_static.GetValue(), 16) + + # Get "this" as its dynamic value + + self.assertTrue (this_dynamic) + this_dynamic_typename = this_dynamic.GetTypeName() + self.assertTrue (this_dynamic_typename.find('B') != -1) + this_dynamic_loc = int (this_dynamic.GetValue(), 16) + + # Make sure we got the right address for "this" + + self.assertTrue (this_dynamic_loc == dynamic_location) + + # And that the static address is greater than the dynamic one + + self.assertTrue (this_static_loc > this_dynamic_loc) + + # Now read m_b_value which is only in the dynamic value: + + use_dynamic = lldb.eDynamicCanRunTarget + no_dynamic = lldb.eNoDynamicValues + + this_dynamic_m_b_value = this_dynamic.GetChildMemberWithName('m_b_value', use_dynamic) + self.assertTrue (this_dynamic_m_b_value) + + m_b_value = int (this_dynamic_m_b_value.GetValue(), 0) + self.assertTrue (m_b_value == 10) + + # Make sure it is not in the static version + + this_static_m_b_value = this_static.GetChildMemberWithName('m_b_value', no_dynamic) + self.assertFalse (this_static_m_b_value) + + # Okay, now let's make sure that we can get the dynamic type of a child element: + + contained_auto_ptr = this_dynamic.GetChildMemberWithName ('m_client_A', use_dynamic) + self.assertTrue (contained_auto_ptr) + contained_b = contained_auto_ptr.GetChildMemberWithName ('_M_ptr', use_dynamic) + if not contained_b: + contained_b = contained_auto_ptr.GetChildMemberWithName ('__ptr_', use_dynamic) + self.assertTrue (contained_b) + + contained_b_static = contained_auto_ptr.GetChildMemberWithName ('_M_ptr', no_dynamic) + if not contained_b_static: + contained_b_static = contained_auto_ptr.GetChildMemberWithName ('__ptr_', no_dynamic) + self.assertTrue (contained_b_static) + + contained_b_addr = int (contained_b.GetValue(), 16) + contained_b_static_addr = int (contained_b_static.GetValue(), 16) + + self.assertTrue (contained_b_addr < contained_b_static_addr) diff --git a/packages/Python/lldbsuite/test/lang/cpp/dynamic-value/pass-to-base.cpp b/packages/Python/lldbsuite/test/lang/cpp/dynamic-value/pass-to-base.cpp new file mode 100644 index 0000000..2bccf33 --- /dev/null +++ b/packages/Python/lldbsuite/test/lang/cpp/dynamic-value/pass-to-base.cpp @@ -0,0 +1,69 @@ +#include <stdio.h> +#include <memory> + +class Extra +{ +public: + Extra (int in_one, int in_two) : m_extra_one(in_one), m_extra_two(in_two) {} + +private: + int m_extra_one; + int m_extra_two; +}; + +class A +{ +public: + A(int value) : m_a_value (value) {} + A(int value, A* client_A) : m_a_value (value), m_client_A (client_A) {} + + virtual ~A() {} + + virtual void + doSomething (A &anotherA) + { + printf ("In A %p doing something with %d.\n", this, m_a_value); + int tmp_value = anotherA.Value(); + printf ("Also have another A at %p: %d.\n", &anotherA, tmp_value); // Break here in doSomething. + } + + int + Value() + { + return m_a_value; + } + +private: + int m_a_value; + std::auto_ptr<A> m_client_A; +}; + +class B : public Extra, public virtual A +{ +public: + B (int b_value, int a_value) : Extra(b_value, a_value), A(a_value), m_b_value(b_value) {} + B (int b_value, int a_value, A *client_A) : Extra(b_value, a_value), A(a_value, client_A), m_b_value(b_value) {} + + virtual ~B () {} + +private: + int m_b_value; +}; + +static A* my_global_A_ptr; + +int +main (int argc, char **argv) +{ + my_global_A_ptr = new B (100, 200); + B myB (10, 20, my_global_A_ptr); + B *second_fake_A_ptr = new B (150, 250); + B otherB (300, 400, second_fake_A_ptr); + + myB.doSomething(otherB); // Break here and get real addresses of myB and otherB. + + A reallyA (500); + myB.doSomething (reallyA); // Break here and get real address of reallyA. + + return 0; +} diff --git a/packages/Python/lldbsuite/test/lang/cpp/dynamic-value/sbvalue-cast.cpp b/packages/Python/lldbsuite/test/lang/cpp/dynamic-value/sbvalue-cast.cpp new file mode 100644 index 0000000..00fd7da --- /dev/null +++ b/packages/Python/lldbsuite/test/lang/cpp/dynamic-value/sbvalue-cast.cpp @@ -0,0 +1,80 @@ +//===-- sbvalue-cast.cpp ----------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +#ifdef DO_VIRTUAL_INHERITANCE +#define VIRTUAL virtual +#else +#define VIRTUAL +#endif + +#include <stdio.h> + +class Base +{ +public: + Base(int val) : m_base_val (val) {} + virtual ~Base() {} + + virtual void + forcast(int input) { + int future_val = m_base_val + input * 1; + printf("Forcasting %d\n", future_val); + } + +protected: + int m_base_val; +}; + +class DerivedA : public VIRTUAL Base +{ +public: + DerivedA(int val) : Base(val*2), m_a_val(val) { + printf("DerivedA::ctor()->\n"); + printf("m_base_val=%d\n", m_base_val); + printf("m_a_val=%d\n", m_a_val); + } + virtual ~DerivedA() {} + +private: + int m_a_val; +}; + +class DerivedB : public VIRTUAL Base +{ +public: + DerivedB(int val) : Base(val), m_b_val(val*3) { + printf("DerivedB::ctor()->\n"); + printf("m_base_val=%d\n", m_base_val); + printf("m_b_val=%d\n", m_b_val); + } + virtual ~DerivedB() {} + + virtual void + forcast(int input) { + int future_val = m_b_val + input * 2; + printf("Forcasting %d\n", future_val); + } + +private: + int m_b_val; +}; + +int +main(int argc, char **argv) +{ + DerivedA* dA = new DerivedA(10); + DerivedB* dB = new DerivedB(12); + Base *array[2] = {dA, dB}; + Base *teller = NULL; + for (int i = 0; i < 2; ++i) { + teller = array[i]; + teller->forcast(i); // Set breakpoint here. + } + + return 0; +} |
