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v8/test/cctest/test-debug.cc
erik.corry@gmail.com 388c1094b7 * Split up code_space into old_data_space and code_space. 
* Make old_data_space non-executable on OSs and hardware that support it.
* Rename old_space to old_pointer_space (can contain pointers, esp. to new space).
* Ensure that individual pages allocated for old_space are only executable when
they are for code objects.
* Ensure Space::Setup can cope with non-aligned memory.
* Make some methods on Spaces virtual.  Make a way to iterate over all spaces.
* Replace executability flag with Executability enum in order to make intent at
call site clearer.
* Fix serialization/deserialization to allocate write barrier memory for large
arrays.



git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@165 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2008-09-05 12:34:09 +00:00

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// Copyright 2007-2008 Google Inc. All Rights Reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <stdlib.h>
#include "v8.h"
#include "api.h"
#include "debug.h"
#include "platform.h"
#include "stub-cache.h"
#include "cctest.h"
using ::v8::internal::Object;
using ::v8::internal::OS;
using ::v8::internal::Handle;
using ::v8::internal::Heap;
using ::v8::internal::JSGlobalObject;
using ::v8::internal::Code;
using ::v8::internal::Debug;
using ::v8::internal::Debugger;
using ::v8::internal::StepAction;
using ::v8::internal::StepIn; // From StepAction enum
using ::v8::internal::StepNext; // From StepAction enum
using ::v8::internal::StepOut; // From StepAction enum
// Size of temp buffer for formatting small strings.
#define SMALL_STRING_BUFFER_SIZE 80
#ifdef DEBUG
namespace v8 { namespace internal {
DECLARE_bool(verify_heap);
} }
#endif
// --- A d d i t i o n a l C h e c k H e l p e r s
// Helper function used by the CHECK_EQ function when given Address
// arguments. Should not be called directly.
static inline void CheckEqualsHelper(const char* file, int line,
const char* expected_source,
::v8::internal::Address expected,
const char* value_source,
::v8::internal::Address value) {
if (expected != value) {
V8_Fatal(file, line, "CHECK_EQ(%s, %s) failed\n# "
"Expected: %i\n# Found: %i",
expected_source, value_source, expected, value);
}
}
// Helper function used by the CHECK_NE function when given Address
// arguments. Should not be called directly.
static inline void CheckNonEqualsHelper(const char* file, int line,
const char* unexpected_source,
::v8::internal::Address unexpected,
const char* value_source,
::v8::internal::Address value) {
if (unexpected == value) {
V8_Fatal(file, line, "CHECK_NE(%s, %s) failed\n# Value: %i",
unexpected_source, value_source, value);
}
}
// Helper function used by the CHECK function when given code
// arguments. Should not be called directly.
static inline void CheckEqualsHelper(const char* file, int line,
const char* expected_source,
const Code* expected,
const char* value_source,
const Code* value) {
if (expected != value) {
V8_Fatal(file, line, "CHECK_EQ(%s, %s) failed\n# "
"Expected: %p\n# Found: %p",
expected_source, value_source, expected, value);
}
}
static inline void CheckNonEqualsHelper(const char* file, int line,
const char* expected_source,
const Code* expected,
const char* value_source,
const Code* value) {
if (expected == value) {
V8_Fatal(file, line, "CHECK_NE(%s, %s) failed\n# Value: %p",
expected_source, value_source, value);
}
}
// --- H e l p e r C l a s s e s
// Helper class for creating a V8 enviromnent for running tests
class DebugLocalContext {
public:
inline DebugLocalContext(
v8::ExtensionConfiguration* extensions = 0,
v8::Handle<v8::ObjectTemplate> global_template =
v8::Handle<v8::ObjectTemplate>(),
v8::Handle<v8::Value> global_object = v8::Handle<v8::Value>())
: context_(v8::Context::New(extensions, global_template, global_object)) {
context_->Enter();
}
inline ~DebugLocalContext() {
context_->Exit();
context_.Dispose();
}
inline v8::Context* operator->() { return *context_; }
inline v8::Context* operator*() { return *context_; }
inline bool IsReady() { return !context_.IsEmpty(); }
void ExposeDebug() {
// Expose the debug context global object in the global object for testing.
Debug::Load();
Handle<JSGlobalObject> global(Handle<JSGlobalObject>::cast(
v8::Utils::OpenHandle(*context_->Global())));
Handle<JSGlobalObject> debug_global(JSGlobalObject::cast(
Debug::debug_context()->global()));
debug_global->set_security_token(global->security_token());
Handle<v8::internal::String> debug_string =
v8::internal::Factory::LookupAsciiSymbol("debug");
SetProperty(global, debug_string, debug_global, DONT_ENUM);
}
private:
v8::Persistent<v8::Context> context_;
};
// --- H e l p e r F u n c t i o n s
// Compile and run the supplied source and return the fequested function.
static v8::Local<v8::Function> CompileFunction(DebugLocalContext* env,
const char* source,
const char* function_name) {
v8::Script::Compile(v8::String::New(source))->Run();
return v8::Local<v8::Function>::Cast(
(*env)->Global()->Get(v8::String::New(function_name)));
}
// Helper function that compiles and runs the source.
static v8::Local<v8::Value> CompileRun(const char* source) {
return v8::Script::Compile(v8::String::New(source))->Run();
}
// Is there any debug info for the function?
static bool HasDebugInfo(v8::Handle<v8::Function> fun) {
Handle<v8::internal::JSFunction> f = v8::Utils::OpenHandle(*fun);
Handle<v8::internal::SharedFunctionInfo> shared(f->shared());
return Debug::HasDebugInfo(shared);
}
// Set a break point in a function and return the associated break point
// number.
static int SetBreakPoint(Handle<v8::internal::JSFunction> fun, int position) {
static int break_point = 0;
Handle<v8::internal::SharedFunctionInfo> shared(fun->shared());
Debug::SetBreakPoint(
shared, position,
Handle<Object>(v8::internal::Smi::FromInt(++break_point)));
return break_point;
}
// Set a break point in a function and return the associated break point
// number.
static int SetBreakPoint(v8::Handle<v8::Function> fun, int position) {
return SetBreakPoint(v8::Utils::OpenHandle(*fun), position);
}
// Set a break point in a function using the Debug object and return the
// associated break point number.
static int SetBreakPointFromJS(const char* function_name,
int line, int position) {
char buffer[SMALL_STRING_BUFFER_SIZE];
OS::SNPrintF(buffer, SMALL_STRING_BUFFER_SIZE,
"debug.Debug.setBreakPoint(%s,%d,%d)",
function_name, line, position);
buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0';
return v8::Script::Compile(v8::String::New(buffer))->Run()->Int32Value();
}
// Set a break point in a script using the global Debug object.
static int SetScriptBreakPointFromJS(const char* script_data,
int line, int column) {
char buffer[SMALL_STRING_BUFFER_SIZE];
if (column >= 0) {
// Column specified set script break point on precise location.
OS::SNPrintF(buffer, SMALL_STRING_BUFFER_SIZE,
"debug.Debug.setScriptBreakPoint(\"%s\",%d,%d)",
script_data, line, column);
} else {
// Column not specified set script break point on line.
OS::SNPrintF(buffer, SMALL_STRING_BUFFER_SIZE,
"debug.Debug.setScriptBreakPoint(\"%s\",%d)",
script_data, line);
}
buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0';
return v8::Script::Compile(v8::String::New(buffer))->Run()->Int32Value();
}
// Clear a break point.
static void ClearBreakPoint(int break_point) {
Debug::ClearBreakPoint(
Handle<Object>(v8::internal::Smi::FromInt(break_point)));
}
// Clear a break point using the global Debug object.
static void ClearBreakPointFromJS(int break_point_number) {
char buffer[SMALL_STRING_BUFFER_SIZE];
OS::SNPrintF(buffer, SMALL_STRING_BUFFER_SIZE,
"debug.Debug.clearBreakPoint(%d)",
break_point_number);
buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0';
v8::Script::Compile(v8::String::New(buffer))->Run();
}
static void EnableScriptBreakPointFromJS(int break_point_number) {
char buffer[SMALL_STRING_BUFFER_SIZE];
OS::SNPrintF(buffer, SMALL_STRING_BUFFER_SIZE,
"debug.Debug.enableScriptBreakPoint(%d)",
break_point_number);
buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0';
v8::Script::Compile(v8::String::New(buffer))->Run();
}
static void DisableScriptBreakPointFromJS(int break_point_number) {
char buffer[SMALL_STRING_BUFFER_SIZE];
OS::SNPrintF(buffer, SMALL_STRING_BUFFER_SIZE,
"debug.Debug.disableScriptBreakPoint(%d)",
break_point_number);
buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0';
v8::Script::Compile(v8::String::New(buffer))->Run();
}
static void ChangeScriptBreakPointConditionFromJS(int break_point_number,
const char* condition) {
char buffer[SMALL_STRING_BUFFER_SIZE];
OS::SNPrintF(buffer, SMALL_STRING_BUFFER_SIZE,
"debug.Debug.changeScriptBreakPointCondition(%d, \"%s\")",
break_point_number, condition);
buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0';
v8::Script::Compile(v8::String::New(buffer))->Run();
}
static void ChangeScriptBreakPointIgnoreCountFromJS(int break_point_number,
int ignoreCount) {
char buffer[SMALL_STRING_BUFFER_SIZE];
OS::SNPrintF(buffer, SMALL_STRING_BUFFER_SIZE,
"debug.Debug.changeScriptBreakPointIgnoreCount(%d, %d)",
break_point_number, ignoreCount);
buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0';
v8::Script::Compile(v8::String::New(buffer))->Run();
}
// Change break on exception.
static void ChangeBreakOnException(bool caught, bool uncaught) {
Debug::ChangeBreakOnException(v8::internal::BreakException, caught);
Debug::ChangeBreakOnException(v8::internal::BreakUncaughtException, uncaught);
}
// Change break on exception using the global Debug object.
static void ChangeBreakOnExceptionFromJS(bool caught, bool uncaught) {
if (caught) {
v8::Script::Compile(
v8::String::New("debug.Debug.setBreakOnException()"))->Run();
} else {
v8::Script::Compile(
v8::String::New("debug.Debug.clearBreakOnException()"))->Run();
}
if (uncaught) {
v8::Script::Compile(
v8::String::New("debug.Debug.setBreakOnUncaughtException()"))->Run();
} else {
v8::Script::Compile(
v8::String::New("debug.Debug.clearBreakOnUncaughtException()"))->Run();
}
}
// Prepare to step to next break location.
static void PrepareStep(StepAction step_action) {
Debug::PrepareStep(step_action, 1);
}
// This function is in namespace v8::internal to be friend with class
// v8::internal::Debug.
namespace v8 { namespace internal { // NOLINT
// Collect the currently debugged functions.
Handle<FixedArray> GetDebuggedFunctions() {
v8::internal::DebugInfoListNode* node = Debug::debug_info_list_;
// Find the number of debugged functions.
int count = 0;
while (node) {
count++;
node = node->next();
}
// Allocate array for the debugged functions
Handle<FixedArray> debugged_functions =
v8::internal::Factory::NewFixedArray(count);
// Run through the debug info objects and collect all functions.
count = 0;
while (node) {
debugged_functions->set(count++, *node->debug_info());
node = node->next();
}
return debugged_functions;
}
static Handle<Code> ComputeCallDebugBreak(int argc) {
CALL_HEAP_FUNCTION(v8::internal::StubCache::ComputeCallDebugBreak(argc),
Code);
}
} } // namespace v8::internal
// Inherit from BreakLocationIterator to get access to protected parts for
// testing.
class TestBreakLocationIterator: public v8::internal::BreakLocationIterator {
public:
explicit TestBreakLocationIterator(Handle<v8::internal::DebugInfo> debug_info)
: BreakLocationIterator(debug_info, v8::internal::SOURCE_BREAK_LOCATIONS) {}
v8::internal::RelocIterator* it() { return reloc_iterator_; }
v8::internal::RelocIterator* it_original() {
return reloc_iterator_original_;
}
};
// Compile a function, set a break point and check that the call at the break
// location in the code is the expected debug_break function.
void CheckDebugBreakFunction(DebugLocalContext* env,
const char* source, const char* name,
int position, v8::internal::RelocMode mode,
Code* debug_break) {
// Create function and set the break point.
Handle<v8::internal::JSFunction> fun = v8::Utils::OpenHandle(
*CompileFunction(env, source, name));
int bp = SetBreakPoint(fun, position);
// Check that the debug break function is as expected.
Handle<v8::internal::SharedFunctionInfo> shared(fun->shared());
CHECK(Debug::HasDebugInfo(shared));
TestBreakLocationIterator it1(Debug::GetDebugInfo(shared));
it1.FindBreakLocationFromPosition(position);
CHECK_EQ(mode, it1.it()->rinfo()->rmode());
if (mode != v8::internal::js_return) {
CHECK_EQ(debug_break,
Debug::GetCodeTarget(it1.it()->rinfo()->target_address()));
} else {
// TODO(1240753): Make the test architecture independent or split
// parts of the debugger into architecture dependent files.
CHECK_EQ(0xE8, *(it1.rinfo()->pc()));
}
// Clear the break point and check that the debug break function is no longer
// there
ClearBreakPoint(bp);
CHECK(!Debug::HasDebugInfo(shared));
CHECK(Debug::EnsureDebugInfo(shared));
TestBreakLocationIterator it2(Debug::GetDebugInfo(shared));
it2.FindBreakLocationFromPosition(position);
CHECK_EQ(mode, it2.it()->rinfo()->rmode());
if (mode == v8::internal::js_return) {
// TODO(1240753): Make the test architecture independent or split
// parts of the debugger into architecture dependent files.
CHECK_NE(0xE8, *(it2.rinfo()->pc()));
}
}
// --- D e b u g E v e n t H a n d l e r s
// ---
// --- The different tests uses a number of debug event handlers.
// ---
// Source for The JavaScript function which picks out the function name on the
// top frame.
const char* frame_function_name_source =
"function frame_function_name(exec_state) {"
" return exec_state.frame(0).func().name();"
"}";
v8::Local<v8::Function> frame_function_name;
// Global variable to store the last function hit - used by some tests.
char last_function_hit[80];
// Debug event handler which counts the break points which have been hit.
int break_point_hit_count = 0;
static void DebugEventBreakPointHitCount(v8::DebugEvent event,
v8::Handle<v8::Object> exec_state,
v8::Handle<v8::Object> event_data,
v8::Handle<v8::Value> data) {
// Count the number of breaks.
if (event == v8::Break) {
break_point_hit_count++;
if (!frame_function_name.IsEmpty()) {
// Get the name of the function.
const int argc = 1;
v8::Handle<v8::Value> argv[argc] = { exec_state };
v8::Handle<v8::Value> result = frame_function_name->Call(exec_state,
argc, argv);
if (result->IsUndefined()) {
last_function_hit[0] = '\0';
} else {
CHECK(result->IsString());
v8::Handle<v8::String> function_name(result->ToString());
function_name->WriteAscii(last_function_hit);
}
}
}
}
// Debug event handler which counts a number of events.
int exception_hit_count = 0;
int uncaught_exception_hit_count = 0;
static void DebugEventCounterClear() {
break_point_hit_count = 0;
exception_hit_count = 0;
uncaught_exception_hit_count = 0;
}
static void DebugEventCounter(v8::DebugEvent event,
v8::Handle<v8::Object> exec_state,
v8::Handle<v8::Object> event_data,
v8::Handle<v8::Value> data) {
// Count the number of breaks.
if (event == v8::Break) {
break_point_hit_count++;
} else if (event == v8::Exception) {
exception_hit_count++;
// Check whether the exception was uncaught.
v8::Local<v8::String> fun_name = v8::String::New("uncaught");
v8::Local<v8::Function> fun =
v8::Function::Cast(*event_data->Get(fun_name));
v8::Local<v8::Value> result = *fun->Call(event_data, 0, NULL);
if (result->IsTrue()) {
uncaught_exception_hit_count++;
}
}
}
// Debug event handler which evaluates a number of expressions when a break
// point is hit. Each evaluated expression is compared with an expected value.
// For this debug event handler to work the following two global varaibles
// must be initialized.
// checks: An array of expressions and expected results
// evaluate_check_function: A JavaScript function (see below)
// Structure for holding checks to do.
struct EvaluateCheck {
const char* expr; // An expression to evaluate when a break point is hit.
v8::Handle<v8::Value> expected; // The expected result.
};
// Array of checks to do.
struct EvaluateCheck* checks = NULL;
// Source for The JavaScript function which can do the evaluation when a break
// point is hit.
const char* evaluate_check_source =
"function evaluate_check(exec_state, expr, expected) {"
" return exec_state.frame(0).evaluate(expr).value() === expected;"
"}";
v8::Local<v8::Function> evaluate_check_function;
// The actual debug event described by the longer comment above.
static void DebugEventEvaluate(v8::DebugEvent event,
v8::Handle<v8::Object> exec_state,
v8::Handle<v8::Object> event_data,
v8::Handle<v8::Value> data) {
if (event == v8::Break) {
for (int i = 0; checks[i].expr != NULL; i++) {
const int argc = 3;
v8::Handle<v8::Value> argv[argc] = { exec_state,
v8::String::New(checks[i].expr),
checks[i].expected };
v8::Handle<v8::Value> result =
evaluate_check_function->Call(exec_state, argc, argv);
if (!result->IsTrue()) {
v8::String::AsciiValue ascii(checks[i].expected->ToString());
V8_Fatal(__FILE__, __LINE__, "%s != %s", checks[i].expr, *ascii);
}
}
}
}
// This debug event listener removes a breakpoint in a function
int debug_event_remove_break_point = 0;
static void DebugEventRemoveBreakPoint(v8::DebugEvent event,
v8::Handle<v8::Object> exec_state,
v8::Handle<v8::Object> event_data,
v8::Handle<v8::Value> data) {
if (event == v8::Break) {
break_point_hit_count++;
v8::Handle<v8::Function> fun = v8::Handle<v8::Function>::Cast(data);
ClearBreakPoint(debug_event_remove_break_point);
}
}
// Debug event handler which counts break points hit and performs a step
// afterwards.
StepAction step_action = StepIn; // Step action to perform when stepping.
static void DebugEventStep(v8::DebugEvent event,
v8::Handle<v8::Object> exec_state,
v8::Handle<v8::Object> event_data,
v8::Handle<v8::Value> data) {
if (event == v8::Break) {
break_point_hit_count++;
PrepareStep(step_action);
}
}
// Debug event handler which counts break points hit and performs a step
// afterwards. For each call the expected function is checked.
// For this debug event handler to work the following two global varaibles
// must be initialized.
// expected_step_sequence: An array of the expected function call sequence.
// frame_function_name: A JavaScript function (see below).
// String containing the expected function call sequence. Note: this only works
// if functions have name length of one.
const char* expected_step_sequence = NULL;
// The actual debug event described by the longer comment above.
static void DebugEventStepSequence(v8::DebugEvent event,
v8::Handle<v8::Object> exec_state,
v8::Handle<v8::Object> event_data,
v8::Handle<v8::Value> data) {
if (event == v8::Break || event == v8::Exception) {
// Check that the current function is the expected.
CHECK(break_point_hit_count <
static_cast<int>(strlen(expected_step_sequence)));
const int argc = 1;
v8::Handle<v8::Value> argv[argc] = { exec_state };
v8::Handle<v8::Value> result = frame_function_name->Call(exec_state,
argc, argv);
CHECK(result->IsString());
v8::String::AsciiValue function_name(result->ToString());
CHECK_EQ(1, strlen(*function_name));
CHECK_EQ((*function_name)[0],
expected_step_sequence[break_point_hit_count]);
// Perform step.
break_point_hit_count++;
PrepareStep(step_action);
}
}
// Debug event handler which performs a garbage collection.
static void DebugEventBreakPointCollectGarbage(
v8::DebugEvent event,
v8::Handle<v8::Object> exec_state,
v8::Handle<v8::Object> event_data,
v8::Handle<v8::Value> data) {
// Perform a garbage collection when break point is hit and continue. Based
// on the number of break points hit either scavenge or mark compact
// collector is used.
if (event == v8::Break) {
break_point_hit_count++;
if (break_point_hit_count % 2 == 0) {
// Scavenge.
Heap::CollectGarbage(0, v8::internal::NEW_SPACE);
} else {
// Mark sweep (and perhaps compact).
Heap::CollectAllGarbage();
}
}
}
// Debug event handler which re-issues a debug break and calls the garbage
// collector to have the heap verified.
static void DebugEventBreak(v8::DebugEvent event,
v8::Handle<v8::Object> exec_state,
v8::Handle<v8::Object> event_data,
v8::Handle<v8::Value> data) {
if (event == v8::Break) {
// Count the number of breaks.
break_point_hit_count++;
// Run the garbage collector to enforce heap verification if option
// --verify-heap is set.
Heap::CollectGarbage(0, v8::internal::NEW_SPACE);
// Set the break flag again to come back here as soon as possible.
v8::Debug::DebugBreak();
}
}
// --- M e s s a g e C a l l b a c k
// Message callback which counts the number of messages.
int message_callback_count = 0;
static void MessageCallbackCountClear() {
message_callback_count = 0;
}
static void MessageCallbackCount(v8::Handle<v8::Message> message,
v8::Handle<v8::Value> data) {
message_callback_count++;
}
// --- T h e A c t u a l T e s t s
// Test that the debug break function is the expected one for different kinds
// of break locations.
TEST(DebugStub) {
using ::v8::internal::Builtins;
v8::HandleScope scope;
DebugLocalContext env;
// TODO(1240753): Make the test architecture independent or split
// parts of the debugger into architecture dependent files. This
// part currently disabled as it is not portable between IA32/ARM.
// Ia32 uses js_return ARM uses exit_js_frame.
#if !defined (__arm__) && !defined(__thumb__)
CheckDebugBreakFunction(&env,
"function f1(){}", "f1",
0,
v8::internal::js_return,
NULL);
#endif
CheckDebugBreakFunction(&env,
"function f2(){x=1;}", "f2",
0,
v8::internal::code_target,
Builtins::builtin(Builtins::StoreIC_DebugBreak));
CheckDebugBreakFunction(&env,
"function f3(){var a=x;}", "f3",
0,
v8::internal::code_target_context,
Builtins::builtin(Builtins::LoadIC_DebugBreak));
// Currently on ICs for keyed store/load on ARM.
#if !defined (__arm__) && !defined(__thumb__)
CheckDebugBreakFunction(
&env,
"function f4(){var index='propertyName'; var a={}; a[index] = 'x';}",
"f4",
0,
v8::internal::code_target,
Builtins::builtin(Builtins::KeyedStoreIC_DebugBreak));
CheckDebugBreakFunction(
&env,
"function f5(){var index='propertyName'; var a={}; return a[index];}",
"f5",
0,
v8::internal::code_target,
Builtins::builtin(Builtins::KeyedLoadIC_DebugBreak));
#endif
// Check the debug break code stubs for call ICs with different number of
// parameters.
Handle<Code> debug_break_0 = v8::internal::ComputeCallDebugBreak(0);
Handle<Code> debug_break_1 = v8::internal::ComputeCallDebugBreak(1);
Handle<Code> debug_break_4 = v8::internal::ComputeCallDebugBreak(4);
CheckDebugBreakFunction(&env,
"function f4_0(){x();}", "f4_0",
0,
v8::internal::code_target_context,
*debug_break_0);
CheckDebugBreakFunction(&env,
"function f4_1(){x(1);}", "f4_1",
0,
v8::internal::code_target_context,
*debug_break_1);
CheckDebugBreakFunction(&env,
"function f4_4(){x(1,2,3,4);}", "f4_4",
0,
v8::internal::code_target_context,
*debug_break_4);
}
// Test that the debug info in the VM is in sync with the functions being
// debugged.
TEST(DebugInfo) {
v8::HandleScope scope;
DebugLocalContext env;
// Create a couple of functions for the test.
v8::Local<v8::Function> foo =
CompileFunction(&env, "function foo(){}", "foo");
v8::Local<v8::Function> bar =
CompileFunction(&env, "function bar(){}", "bar");
// Initially no functions are debugged.
CHECK_EQ(0, v8::internal::GetDebuggedFunctions()->length());
CHECK(!HasDebugInfo(foo));
CHECK(!HasDebugInfo(bar));
// One function (foo) is debugged.
int bp1 = SetBreakPoint(foo, 0);
CHECK_EQ(1, v8::internal::GetDebuggedFunctions()->length());
CHECK(HasDebugInfo(foo));
CHECK(!HasDebugInfo(bar));
// Two functions are debugged.
int bp2 = SetBreakPoint(bar, 0);
CHECK_EQ(2, v8::internal::GetDebuggedFunctions()->length());
CHECK(HasDebugInfo(foo));
CHECK(HasDebugInfo(bar));
// One function (bar) is debugged.
ClearBreakPoint(bp1);
CHECK_EQ(1, v8::internal::GetDebuggedFunctions()->length());
CHECK(!HasDebugInfo(foo));
CHECK(HasDebugInfo(bar));
// No functions are debugged.
ClearBreakPoint(bp2);
CHECK_EQ(0, v8::internal::GetDebuggedFunctions()->length());
CHECK(!HasDebugInfo(foo));
CHECK(!HasDebugInfo(bar));
}
// Test that a break point can be set at an IC store location.
TEST(BreakPointICStore) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
v8::Debug::AddDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Script::Compile(v8::String::New("function foo(){bar=0;}"))->Run();
v8::Local<v8::Function> foo =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("foo")));
// Run without breakpoints.
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
// Run with breakpoint
int bp = SetBreakPoint(foo, 0);
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
// Run without breakpoints.
ClearBreakPoint(bp);
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
v8::Debug::RemoveDebugEventListener(DebugEventBreakPointHitCount);
}
// Test that a break point can be set at an IC load location.
TEST(BreakPointICLoad) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
v8::Debug::AddDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Script::Compile(v8::String::New("bar=1"))->Run();
v8::Script::Compile(v8::String::New("function foo(){var x=bar;}"))->Run();
v8::Local<v8::Function> foo =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("foo")));
// Run without breakpoints.
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
// Run with breakpoint
int bp = SetBreakPoint(foo, 0);
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
// Run without breakpoints.
ClearBreakPoint(bp);
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
v8::Debug::RemoveDebugEventListener(DebugEventBreakPointHitCount);
}
// Test that a break point can be set at an IC call location.
TEST(BreakPointICCall) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
v8::Debug::AddDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Script::Compile(v8::String::New("function bar(){}"))->Run();
v8::Script::Compile(v8::String::New("function foo(){bar();}"))->Run();
v8::Local<v8::Function> foo =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("foo")));
// Run without breakpoints.
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
// Run with breakpoint
int bp = SetBreakPoint(foo, 0);
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
// Run without breakpoints.
ClearBreakPoint(bp);
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
v8::Debug::RemoveDebugEventListener(DebugEventBreakPointHitCount);
}
// Test that a break point can be set at a return store location.
TEST(BreakPointReturn) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
v8::Debug::AddDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Script::Compile(v8::String::New("function foo(){}"))->Run();
v8::Local<v8::Function> foo =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("foo")));
// Run without breakpoints.
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
// Run with breakpoint
int bp = SetBreakPoint(foo, 0);
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
// Run without breakpoints.
ClearBreakPoint(bp);
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
v8::Debug::RemoveDebugEventListener(DebugEventBreakPointHitCount);
}
static void CallWithBreakPoints(v8::Local<v8::Object> recv,
v8::Local<v8::Function> f,
int break_point_count,
int call_count) {
break_point_hit_count = 0;
for (int i = 0; i < call_count; i++) {
f->Call(recv, 0, NULL);
CHECK_EQ((i + 1) * break_point_count, break_point_hit_count);
}
}
// Test GC during break point processing.
TEST(GCDuringBreakPointProcessing) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
v8::Debug::AddDebugEventListener(DebugEventBreakPointCollectGarbage,
v8::Undefined());
v8::Local<v8::Function> foo;
// Test IC store break point with garbage collection.
foo = CompileFunction(&env, "function foo(){bar=0;}", "foo");
SetBreakPoint(foo, 0);
CallWithBreakPoints(env->Global(), foo, 1, 10);
// Test IC load break point with garbage collection.
foo = CompileFunction(&env, "bar=1;function foo(){var x=bar;}", "foo");
SetBreakPoint(foo, 0);
CallWithBreakPoints(env->Global(), foo, 1, 10);
// Test IC call break point with garbage collection.
foo = CompileFunction(&env, "function bar(){};function foo(){bar();}", "foo");
SetBreakPoint(foo, 0);
CallWithBreakPoints(env->Global(), foo, 1, 10);
// Test return break point with garbage collection.
foo = CompileFunction(&env, "function foo(){}", "foo");
SetBreakPoint(foo, 0);
CallWithBreakPoints(env->Global(), foo, 1, 25);
v8::Debug::RemoveDebugEventListener(DebugEventBreakPointCollectGarbage);
}
// Call the function three times with different garbage collections in between
// and make sure that the break point survives.
static void CallAndGC(v8::Local<v8::Object> recv, v8::Local<v8::Function> f) {
break_point_hit_count = 0;
for (int i = 0; i < 3; i++) {
// Call function.
f->Call(recv, 0, NULL);
CHECK_EQ(1 + i * 3, break_point_hit_count);
// Scavenge and call function.
Heap::CollectGarbage(0, v8::internal::NEW_SPACE);
f->Call(recv, 0, NULL);
CHECK_EQ(2 + i * 3, break_point_hit_count);
// Mark sweep (and perhaps compact) and call function.
Heap::CollectAllGarbage();
f->Call(recv, 0, NULL);
CHECK_EQ(3 + i * 3, break_point_hit_count);
}
}
// Test that a break point can be set at a return store location.
TEST(BreakPointSurviveGC) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
v8::Debug::AddDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Local<v8::Function> foo;
// Test IC store break point with garbage collection.
foo = CompileFunction(&env, "function foo(){bar=0;}", "foo");
SetBreakPoint(foo, 0);
CallAndGC(env->Global(), foo);
// Test IC load break point with garbage collection.
foo = CompileFunction(&env, "bar=1;function foo(){var x=bar;}", "foo");
SetBreakPoint(foo, 0);
CallAndGC(env->Global(), foo);
// Test IC call break point with garbage collection.
foo = CompileFunction(&env, "function bar(){};function foo(){bar();}", "foo");
SetBreakPoint(foo, 0);
CallAndGC(env->Global(), foo);
// Test return break point with garbage collection.
foo = CompileFunction(&env, "function foo(){}", "foo");
SetBreakPoint(foo, 0);
CallAndGC(env->Global(), foo);
v8::Debug::RemoveDebugEventListener(DebugEventBreakPointHitCount);
}
// Test that break points can be set using the global Debug object.
TEST(BreakPointThroughJavaScript) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
v8::Debug::AddDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Script::Compile(v8::String::New("function bar(){}"))->Run();
v8::Script::Compile(v8::String::New("function foo(){bar();bar();}"))->Run();
// 012345678901234567890
// 1 2
// Break points are set at position 3 and 9
v8::Local<v8::Script> foo = v8::Script::Compile(v8::String::New("foo()"));
// Run without breakpoints.
foo->Run();
CHECK_EQ(0, break_point_hit_count);
// Run with one breakpoint
int bp1 = SetBreakPointFromJS("foo", 0, 3);
foo->Run();
CHECK_EQ(1, break_point_hit_count);
foo->Run();
CHECK_EQ(2, break_point_hit_count);
// Run with two breakpoints
int bp2 = SetBreakPointFromJS("foo", 0, 9);
foo->Run();
CHECK_EQ(4, break_point_hit_count);
foo->Run();
CHECK_EQ(6, break_point_hit_count);
// Run with one breakpoint
ClearBreakPointFromJS(bp2);
foo->Run();
CHECK_EQ(7, break_point_hit_count);
foo->Run();
CHECK_EQ(8, break_point_hit_count);
// Run without breakpoints.
ClearBreakPointFromJS(bp1);
foo->Run();
CHECK_EQ(8, break_point_hit_count);
v8::Debug::RemoveDebugEventListener(DebugEventBreakPointHitCount);
// Make sure that the break point numbers are consecutive.
CHECK_EQ(1, bp1);
CHECK_EQ(2, bp2);
}
// Test that break points can be set using the global Debug object.
TEST(ScriptBreakPointThroughJavaScript) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
v8::Debug::AddDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Script::Compile(v8::String::New("function foo(){bar();bar();}"))->Run();
v8::Local<v8::String> script = v8::String::New(
"function f() {\n"
" function h() {\n"
" a = 0; // line 2\n"
" }\n"
" b = 1; // line 4\n"
" return h();\n"
"}\n"
"\n"
"function g() {\n"
" function h() {\n"
" a = 0;\n"
" }\n"
" b = 2; // line 12\n"
" h();\n"
" b = 3; // line 14\n"
" f(); // line 15\n"
"}");
// Compile the script and get the two functions.
v8::ScriptOrigin origin =
v8::ScriptOrigin(v8::String::New("test"));
v8::Script::Compile(script, &origin)->Run();
v8::Local<v8::Function> f =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
v8::Local<v8::Function> g =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("g")));
// Call f and g without break points.
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
g->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
// Call f and g with break point on line 12.
int sbp1 = SetScriptBreakPointFromJS("test", 12, 0);
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
g->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
// Remove the break point again.
break_point_hit_count = 0;
ClearBreakPointFromJS(sbp1);
f->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
g->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
// Call f and g with break point on line 2.
int sbp2 = SetScriptBreakPointFromJS("test", 2, 0);
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
g->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
// Call f and g with break point on line 2, 4, 12, 14 and 15.
int sbp3 = SetScriptBreakPointFromJS("test", 4, 0);
int sbp4 = SetScriptBreakPointFromJS("test", 12, 0);
int sbp5 = SetScriptBreakPointFromJS("test", 14, 0);
int sbp6 = SetScriptBreakPointFromJS("test", 15, 0);
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
g->Call(env->Global(), 0, NULL);
CHECK_EQ(7, break_point_hit_count);
// Remove the all the break points again.
break_point_hit_count = 0;
ClearBreakPointFromJS(sbp2);
ClearBreakPointFromJS(sbp3);
ClearBreakPointFromJS(sbp4);
ClearBreakPointFromJS(sbp5);
ClearBreakPointFromJS(sbp6);
f->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
g->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
// Now set a function break point
int bp7 = SetBreakPointFromJS("g", 0, 0);
g->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
// Reload the script and get g again checking that the break point survives.
// This tests that the function break point was converted to a script break
// point.
v8::Script::Compile(script, &origin)->Run();
g = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("g")));
g->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
v8::Debug::RemoveDebugEventListener(DebugEventBreakPointHitCount);
// Make sure that the break point numbers are consecutive.
CHECK_EQ(1, sbp1);
CHECK_EQ(2, sbp2);
CHECK_EQ(3, sbp3);
CHECK_EQ(4, sbp4);
CHECK_EQ(5, sbp5);
CHECK_EQ(6, sbp6);
CHECK_EQ(7, bp7);
}
// Test conditional script break points.
TEST(EnableDisableScriptBreakPoint) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
v8::Debug::AddDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Local<v8::String> script = v8::String::New(
"function f() {\n"
" a = 0; // line 1\n"
"};");
// Compile the script and get function f.
v8::ScriptOrigin origin =
v8::ScriptOrigin(v8::String::New("test"));
v8::Script::Compile(script, &origin)->Run();
v8::Local<v8::Function> f =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
// Set script break point on line 1 (in function f).
int sbp = SetScriptBreakPointFromJS("test", 1, 0);
// Call f while enabeling and disabling the script break point.
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
DisableScriptBreakPointFromJS(sbp);
f->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
EnableScriptBreakPointFromJS(sbp);
f->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
DisableScriptBreakPointFromJS(sbp);
f->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
// Reload the script and get f again checking that the disabeling survives.
v8::Script::Compile(script, &origin)->Run();
f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
f->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
EnableScriptBreakPointFromJS(sbp);
f->Call(env->Global(), 0, NULL);
CHECK_EQ(3, break_point_hit_count);
v8::Debug::RemoveDebugEventListener(DebugEventBreakPointHitCount);
}
// Test conditional script break points.
TEST(ConditionalScriptBreakPoint) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
v8::Debug::AddDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Local<v8::String> script = v8::String::New(
"count = 0;\n"
"function f() {\n"
" g(count++); // line 2\n"
"};\n"
"function g(x) {\n"
" var a=x; // line 5\n"
"};");
// Compile the script and get function f.
v8::ScriptOrigin origin =
v8::ScriptOrigin(v8::String::New("test"));
v8::Script::Compile(script, &origin)->Run();
v8::Local<v8::Function> f =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
// Set script break point on line 5 (in function g).
int sbp1 = SetScriptBreakPointFromJS("test", 5, 0);
// Call f with different conditions on the script break point.
break_point_hit_count = 0;
ChangeScriptBreakPointConditionFromJS(sbp1, "false");
f->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
ChangeScriptBreakPointConditionFromJS(sbp1, "true");
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
ChangeScriptBreakPointConditionFromJS(sbp1, "a % 2 == 0");
break_point_hit_count = 0;
for (int i = 0; i < 10; i++) {
f->Call(env->Global(), 0, NULL);
}
CHECK_EQ(5, break_point_hit_count);
// Reload the script and get f again checking that the condition survives.
v8::Script::Compile(script, &origin)->Run();
f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
break_point_hit_count = 0;
for (int i = 0; i < 10; i++) {
f->Call(env->Global(), 0, NULL);
}
CHECK_EQ(5, break_point_hit_count);
v8::Debug::RemoveDebugEventListener(DebugEventBreakPointHitCount);
}
// Test ignore count on script break points.
TEST(ScriptBreakPointIgnoreCount) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
v8::Debug::AddDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Local<v8::String> script = v8::String::New(
"function f() {\n"
" a = 0; // line 1\n"
"};");
// Compile the script and get function f.
v8::ScriptOrigin origin =
v8::ScriptOrigin(v8::String::New("test"));
v8::Script::Compile(script, &origin)->Run();
v8::Local<v8::Function> f =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
// Set script break point on line 1 (in function f).
int sbp = SetScriptBreakPointFromJS("test", 1, 0);
// Call f with different ignores on the script break point.
break_point_hit_count = 0;
ChangeScriptBreakPointIgnoreCountFromJS(sbp, 1);
f->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
f->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
ChangeScriptBreakPointIgnoreCountFromJS(sbp, 5);
break_point_hit_count = 0;
for (int i = 0; i < 10; i++) {
f->Call(env->Global(), 0, NULL);
}
CHECK_EQ(5, break_point_hit_count);
// Reload the script and get f again checking that the ignore survives.
v8::Script::Compile(script, &origin)->Run();
f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
break_point_hit_count = 0;
for (int i = 0; i < 10; i++) {
f->Call(env->Global(), 0, NULL);
}
CHECK_EQ(5, break_point_hit_count);
v8::Debug::RemoveDebugEventListener(DebugEventBreakPointHitCount);
}
// Test that script break points survive when a script is reloaded.
TEST(ScriptBreakPointReload) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
v8::Debug::AddDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Local<v8::Function> f;
v8::Local<v8::String> script = v8::String::New(
"function f() {\n"
" function h() {\n"
" a = 0; // line 2\n"
" }\n"
" b = 1; // line 4\n"
" return h();\n"
"}");
v8::ScriptOrigin origin_1 = v8::ScriptOrigin(v8::String::New("1"));
v8::ScriptOrigin origin_2 = v8::ScriptOrigin(v8::String::New("2"));
// Set a script break point before the script is loaded.
SetScriptBreakPointFromJS("1", 2, 0);
// Compile the script and get the function.
v8::Script::Compile(script, &origin_1)->Run();
f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
// Call f and check that the script break point is active.
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
// Compile the script again with a different script data and get the
// function.
v8::Script::Compile(script, &origin_2)->Run();
f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
// Call f and check that no break points are set.
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
// Compile the script again and get the function.
v8::Script::Compile(script, &origin_1)->Run();
f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
// Call f and check that the script break point is active.
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
v8::Debug::RemoveDebugEventListener(DebugEventBreakPointHitCount);
}
// Test when several scripts has the same script data
TEST(ScriptBreakPointMultiple) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
v8::Debug::AddDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Local<v8::Function> f;
v8::Local<v8::String> script_f = v8::String::New(
"function f() {\n"
" a = 0; // line 1\n"
"}");
v8::Local<v8::Function> g;
v8::Local<v8::String> script_g = v8::String::New(
"function g() {\n"
" b = 0; // line 1\n"
"}");
v8::ScriptOrigin origin =
v8::ScriptOrigin(v8::String::New("test"));
// Set a script break point before the scripts are loaded.
int sbp = SetScriptBreakPointFromJS("test", 1, 0);
// Compile the scripts with same script data and get the functions.
v8::Script::Compile(script_f, &origin)->Run();
f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
v8::Script::Compile(script_g, &origin)->Run();
g = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("g")));
// Call f and g and check that the script break point is active.
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
g->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
// Clear the script break point.
ClearBreakPointFromJS(sbp);
// Call f and g and check that the script break point is no longer active.
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
g->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
// Set script break point with the scripts loaded.
sbp = SetScriptBreakPointFromJS("test", 1, 0);
// Call f and g and check that the script break point is active.
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
g->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
v8::Debug::RemoveDebugEventListener(DebugEventBreakPointHitCount);
}
// Test the script origin which has both name and line offset.
TEST(ScriptBreakPointLineOffset) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
v8::Debug::AddDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Local<v8::Function> f;
v8::Local<v8::String> script = v8::String::New(
"function f() {\n"
" a = 0; // line 8 as this script has line offset 7\n"
" b = 0; // line 9 as this script has line offset 7\n"
"}");
// Create script origin both name and line offset.
v8::ScriptOrigin origin(v8::String::New("test.html"),
v8::Integer::New(7));
// Set two script break points before the script is loaded.
int sbp1 = SetScriptBreakPointFromJS("test.html", 8, 0);
int sbp2 = SetScriptBreakPointFromJS("test.html", 9, 0);
// Compile the script and get the function.
v8::Script::Compile(script, &origin)->Run();
f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
// Call f and check that the script break point is active.
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
// Clear the script break points.
ClearBreakPointFromJS(sbp1);
ClearBreakPointFromJS(sbp2);
// Call f and check that no script break points are active.
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
// Set a script break point with the script loaded.
sbp1 = SetScriptBreakPointFromJS("test.html", 9, 0);
// Call f and check that the script break point is active.
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
v8::Debug::RemoveDebugEventListener(DebugEventBreakPointHitCount);
}
// Test script break points set on lines.
TEST(ScriptBreakPointLine) {
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
// Create a function for checking the function when hitting a break point.
frame_function_name = CompileFunction(&env,
frame_function_name_source,
"frame_function_name");
v8::Debug::AddDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Local<v8::Function> f;
v8::Local<v8::Function> g;
v8::Local<v8::String> script = v8::String::New(
"a = 0 // line 0\n"
"function f() {\n"
" a = 1; // line 2\n"
"}\n"
" a = 2; // line 4\n"
" /* xx */ function g() { // line 5\n"
" function h() { // line 6\n"
" a = 3; // line 7\n"
" }\n"
" h(); // line 9\n"
" a = 4; // line 10\n"
" }\n"
" a=5; // line 12");
// Set a couple script break point before the script is loaded.
int sbp1 = SetScriptBreakPointFromJS("test.html", 0, -1);
int sbp2 = SetScriptBreakPointFromJS("test.html", 1, -1);
int sbp3 = SetScriptBreakPointFromJS("test.html", 5, -1);
// Compile the script and get the function.
break_point_hit_count = 0;
v8::ScriptOrigin origin(v8::String::New("test.html"), v8::Integer::New(0));
v8::Script::Compile(script, &origin)->Run();
f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
g = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("g")));
// Chesk that a break point was hit when the script was run.
CHECK_EQ(1, break_point_hit_count);
CHECK_EQ(0, strlen(last_function_hit));
// Call f and check that the script break point.
f->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
CHECK_EQ("f", last_function_hit);
// Call g and check that the script break point.
g->Call(env->Global(), 0, NULL);
CHECK_EQ(3, break_point_hit_count);
CHECK_EQ("g", last_function_hit);
// Clear the script break point on g and set one on h.
ClearBreakPointFromJS(sbp3);
int sbp4 = SetScriptBreakPointFromJS("test.html", 6, -1);
// Call g and check that the script break point in h is hit.
g->Call(env->Global(), 0, NULL);
CHECK_EQ(4, break_point_hit_count);
CHECK_EQ("h", last_function_hit);
// Clear break points in f and h. Set a new one in the script between
// functions f and g and test that there is no break points in f and g any
// more.
ClearBreakPointFromJS(sbp2);
ClearBreakPointFromJS(sbp4);
int sbp5 = SetScriptBreakPointFromJS("test.html", 4, -1);
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
g->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
// Reload the script which should hit two break points.
break_point_hit_count = 0;
v8::Script::Compile(script, &origin)->Run();
CHECK_EQ(2, break_point_hit_count);
CHECK_EQ(0, strlen(last_function_hit));
// Set a break point in the code after the last function decleration.
int sbp6 = SetScriptBreakPointFromJS("test.html", 12, -1);
// Reload the script which should hit three break points.
break_point_hit_count = 0;
v8::Script::Compile(script, &origin)->Run();
CHECK_EQ(3, break_point_hit_count);
CHECK_EQ(0, strlen(last_function_hit));
// Clear the last break points, and reload the script which should not hit any
// break points.
ClearBreakPointFromJS(sbp1);
ClearBreakPointFromJS(sbp5);
ClearBreakPointFromJS(sbp6);
break_point_hit_count = 0;
v8::Script::Compile(script, &origin)->Run();
CHECK_EQ(0, break_point_hit_count);
v8::Debug::RemoveDebugEventListener(DebugEventBreakPointHitCount);
}
// Test that it is possible to remove the last break point for a function
// inside the break handling of that break point.
TEST(RemoveBreakPointInBreak) {
v8::HandleScope scope;
DebugLocalContext env;
v8::Local<v8::Function> foo =
CompileFunction(&env, "function foo(){a=1;}", "foo");
debug_event_remove_break_point = SetBreakPoint(foo, 0);
// Register the debug event listener pasing the function
v8::Debug::AddDebugEventListener(DebugEventRemoveBreakPoint, foo);
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
v8::Debug::RemoveDebugEventListener(DebugEventRemoveBreakPoint);
}
// Test that the debugger statement causes a break.
TEST(DebuggerStatement) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
v8::Debug::AddDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Script::Compile(v8::String::New("function bar(){debugger}"))->Run();
v8::Script::Compile(v8::String::New(
"function foo(){debugger;debugger;}"))->Run();
v8::Local<v8::Function> foo =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("foo")));
v8::Local<v8::Function> bar =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("bar")));
// Run function with debugger statement
bar->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
// Run function with two debugger statement
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(3, break_point_hit_count);
v8::Debug::RemoveDebugEventListener(DebugEventBreakPointHitCount);
}
// Thest that the evaluation of expressions when a break point is hit generates
// the correct results.
TEST(DebugEvaluate) {
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
// Create a function for checking the evaluation when hitting a break point.
evaluate_check_function = CompileFunction(&env,
evaluate_check_source,
"evaluate_check");
// Register the debug event listener
v8::Debug::AddDebugEventListener(DebugEventEvaluate);
// Different expected vaules of x and a when in a break point (u = undefined,
// d = Hello, world!).
struct EvaluateCheck checks_uu[] = {
{"x", v8::Undefined()},
{"a", v8::Undefined()},
{NULL, v8::Handle<v8::Value>()}
};
struct EvaluateCheck checks_hu[] = {
{"x", v8::String::New("Hello, world!")},
{"a", v8::Undefined()},
{NULL, v8::Handle<v8::Value>()}
};
struct EvaluateCheck checks_hh[] = {
{"x", v8::String::New("Hello, world!")},
{"a", v8::String::New("Hello, world!")},
{NULL, v8::Handle<v8::Value>()}
};
// Simple test function. The "y=0" is in the function foo to provide a break
// location. For "y=0" the "y" is at position 15 in the barbar function
// therefore setting breakpoint at position 15 will break at "y=0" and
// setting it higher will break after.
v8::Local<v8::Function> foo = CompileFunction(&env,
"function foo(x) {"
" var a;"
" y=0; /* To ensure break location.*/"
" a=x;"
"}",
"foo");
const int foo_break_position = 15;
// Arguments with one parameter "Hello, world!"
v8::Handle<v8::Value> argv_foo[1] = { v8::String::New("Hello, world!") };
// Call foo with breakpoint set before a=x and undefined as parameter.
int bp = SetBreakPoint(foo, foo_break_position);
checks = checks_uu;
foo->Call(env->Global(), 0, NULL);
// Call foo with breakpoint set before a=x and parameter "Hello, world!".
checks = checks_hu;
foo->Call(env->Global(), 1, argv_foo);
// Call foo with breakpoint set after a=x and parameter "Hello, world!".
ClearBreakPoint(bp);
SetBreakPoint(foo, foo_break_position + 1);
checks = checks_hh;
foo->Call(env->Global(), 1, argv_foo);
// Test function with an inner function. The "y=0" is in function barbar
// to provide a break location. For "y=0" the "y" is at position 8 in the
// barbar function therefore setting breakpoint at position 8 will break at
// "y=0" and setting it higher will break after.
v8::Local<v8::Function> bar = CompileFunction(&env,
"y = 0;"
"x = 'Goodbye, world!';"
"function bar(x, b) {"
" var a;"
" function barbar() {"
" y=0; /* To ensure break location.*/"
" a=x;"
" };"
" debug.Debug.clearAllBreakPoints();"
" barbar();"
" y=0;a=x;"
"}",
"bar");
const int barbar_break_position = 8;
// Call bar setting breakpoint before a=x in barbar and undefined as
// parameter.
checks = checks_uu;
v8::Handle<v8::Value> argv_bar_1[2] = {
v8::Undefined(),
v8::Number::New(barbar_break_position)
};
bar->Call(env->Global(), 2, argv_bar_1);
// Call bar setting breakpoint before a=x in barbar and parameter
// "Hello, world!".
checks = checks_hu;
v8::Handle<v8::Value> argv_bar_2[2] = {
v8::String::New("Hello, world!"),
v8::Number::New(barbar_break_position)
};
bar->Call(env->Global(), 2, argv_bar_2);
// Call bar setting breakpoint after a=x in barbar and parameter
// "Hello, world!".
checks = checks_hh;
v8::Handle<v8::Value> argv_bar_3[2] = {
v8::String::New("Hello, world!"),
v8::Number::New(barbar_break_position + 1)
};
bar->Call(env->Global(), 2, argv_bar_3);
v8::Debug::RemoveDebugEventListener(DebugEventEvaluate);
}
// Simple test of the stepping mechanism using only store ICs.
TEST(DebugStepLinear) {
v8::HandleScope scope;
DebugLocalContext env;
// Create a function for testing stepping.
v8::Local<v8::Function> foo = CompileFunction(&env,
"function foo(){a=1;b=1;c=1;}",
"foo");
SetBreakPoint(foo, 3);
// Register a debug event listener which steps and counts.
v8::Debug::AddDebugEventListener(DebugEventStep);
step_action = StepIn;
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
// With stepping all break locations are hit.
CHECK_EQ(4, break_point_hit_count);
v8::Debug::RemoveDebugEventListener(DebugEventStep);
// Register a debug event listener which just counts.
v8::Debug::AddDebugEventListener(DebugEventBreakPointHitCount);
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
// Without stepping only active break points are hit.
CHECK_EQ(1, break_point_hit_count);
v8::Debug::RemoveDebugEventListener(DebugEventBreakPointHitCount);
}
// Test the stepping mechanism with different ICs.
TEST(DebugStepLinearMixedICs) {
v8::HandleScope scope;
DebugLocalContext env;
// Create a function for testing stepping.
v8::Local<v8::Function> foo = CompileFunction(&env,
"function bar() {};"
"function foo() {"
" var x;"
" var index='name';"
" var y = {};"
" a=1;b=2;x=a;y[index]=3;x=y[index];bar();}", "foo");
SetBreakPoint(foo, 0);
// Register a debug event listener which steps and counts.
v8::Debug::AddDebugEventListener(DebugEventStep);
step_action = StepIn;
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
// With stepping all break locations are hit. For ARM the keyed load/store
// is not hit as they are not implemented as ICs.
#if defined (__arm__) || defined(__thumb__)
CHECK_EQ(6, break_point_hit_count);
#else
CHECK_EQ(8, break_point_hit_count);
#endif
v8::Debug::RemoveDebugEventListener(DebugEventStep);
// Register a debug event listener which just counts.
v8::Debug::AddDebugEventListener(DebugEventBreakPointHitCount);
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
// Without stepping only active break points are hit.
CHECK_EQ(1, break_point_hit_count);
v8::Debug::RemoveDebugEventListener(DebugEventBreakPointHitCount);
}
TEST(DebugStepIf) {
v8::HandleScope scope;
DebugLocalContext env;
// Register a debug event listener which steps and counts.
v8::Debug::AddDebugEventListener(DebugEventStep);
// Create a function for testing stepping.
const int argc = 1;
const char* src = "function foo(x) { "
" a = 1;"
" if (x) {"
" b = 1;"
" } else {"
" c = 1;"
" d = 1;"
" }"
"}";
v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo");
SetBreakPoint(foo, 0);
// Stepping through the true part.
step_action = StepIn;
break_point_hit_count = 0;
v8::Handle<v8::Value> argv_true[argc] = { v8::True() };
foo->Call(env->Global(), argc, argv_true);
CHECK_EQ(3, break_point_hit_count);
// Stepping through the false part.
step_action = StepIn;
break_point_hit_count = 0;
v8::Handle<v8::Value> argv_false[argc] = { v8::False() };
foo->Call(env->Global(), argc, argv_false);
CHECK_EQ(4, break_point_hit_count);
// Get rid of the debug event listener.
v8::Debug::RemoveDebugEventListener(DebugEventStep);
}
TEST(DebugStepSwitch) {
v8::HandleScope scope;
DebugLocalContext env;
// Register a debug event listener which steps and counts.
v8::Debug::AddDebugEventListener(DebugEventStep);
// Create a function for testing stepping.
const int argc = 1;
const char* src = "function foo(x) { "
" a = 1;"
" switch (x) {"
" case 1:"
" b = 1;"
" case 2:"
" c = 1;"
" break;"
" case 3:"
" d = 1;"
" e = 1;"
" break;"
" }"
"}";
v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo");
SetBreakPoint(foo, 0);
// One case with fall-through.
step_action = StepIn;
break_point_hit_count = 0;
v8::Handle<v8::Value> argv_1[argc] = { v8::Number::New(1) };
foo->Call(env->Global(), argc, argv_1);
CHECK_EQ(4, break_point_hit_count);
// Another case.
step_action = StepIn;
break_point_hit_count = 0;
v8::Handle<v8::Value> argv_2[argc] = { v8::Number::New(2) };
foo->Call(env->Global(), argc, argv_2);
CHECK_EQ(3, break_point_hit_count);
// Last case.
step_action = StepIn;
break_point_hit_count = 0;
v8::Handle<v8::Value> argv_3[argc] = { v8::Number::New(3) };
foo->Call(env->Global(), argc, argv_3);
CHECK_EQ(4, break_point_hit_count);
// Get rid of the debug event listener.
v8::Debug::RemoveDebugEventListener(DebugEventStep);
}
TEST(DebugStepFor) {
v8::HandleScope scope;
DebugLocalContext env;
// Register a debug event listener which steps and counts.
v8::Debug::AddDebugEventListener(DebugEventStep);
// Create a function for testing stepping.
const int argc = 1;
const char* src = "function foo(x) { "
" a = 1;"
" for (i = 0; i < x; i++) {"
" b = 1;"
" }"
"}";
v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo");
SetBreakPoint(foo, 8); // "a = 1;"
// Looping 10 times.
step_action = StepIn;
break_point_hit_count = 0;
v8::Handle<v8::Value> argv_10[argc] = { v8::Number::New(10) };
foo->Call(env->Global(), argc, argv_10);
CHECK_EQ(23, break_point_hit_count);
// Looping 100 times.
step_action = StepIn;
break_point_hit_count = 0;
v8::Handle<v8::Value> argv_100[argc] = { v8::Number::New(100) };
foo->Call(env->Global(), argc, argv_100);
CHECK_EQ(203, break_point_hit_count);
// Get rid of the debug event listener.
v8::Debug::RemoveDebugEventListener(DebugEventStep);
}
TEST(StepInOutSimple) {
v8::HandleScope scope;
DebugLocalContext env;
// Create a function for checking the function when hitting a break point.
frame_function_name = CompileFunction(&env,
frame_function_name_source,
"frame_function_name");
// Register a debug event listener which steps and counts.
v8::Debug::AddDebugEventListener(DebugEventStepSequence);
// Create functions for testing stepping.
const char* src = "function a() {b();c();}; "
"function b() {c();}; "
"function c() {}; ";
v8::Local<v8::Function> a = CompileFunction(&env, src, "a");
SetBreakPoint(a, 0);
// Step through invocation of a with step in.
step_action = StepIn;
break_point_hit_count = 0;
expected_step_sequence = "abcbaca";
a->Call(env->Global(), 0, NULL);
CHECK_EQ(strlen(expected_step_sequence), break_point_hit_count);
// Step through invocation of a with step next.
step_action = StepNext;
break_point_hit_count = 0;
expected_step_sequence = "aaa";
a->Call(env->Global(), 0, NULL);
CHECK_EQ(strlen(expected_step_sequence), break_point_hit_count);
// Step through invocation of a with step out.
step_action = StepOut;
break_point_hit_count = 0;
expected_step_sequence = "a";
a->Call(env->Global(), 0, NULL);
CHECK_EQ(strlen(expected_step_sequence), break_point_hit_count);
// Get rid of the debug event listener.
v8::Debug::RemoveDebugEventListener(DebugEventStepSequence);
}
TEST(StepInOutTree) {
v8::HandleScope scope;
DebugLocalContext env;
// Create a function for checking the function when hitting a break point.
frame_function_name = CompileFunction(&env,
frame_function_name_source,
"frame_function_name");
// Register a debug event listener which steps and counts.
v8::Debug::AddDebugEventListener(DebugEventStepSequence);
// Create functions for testing stepping.
const char* src = "function a() {b(c(d()),d());c(d());d()}; "
"function b(x,y) {c();}; "
"function c(x) {}; "
"function d() {}; ";
v8::Local<v8::Function> a = CompileFunction(&env, src, "a");
SetBreakPoint(a, 0);
// Step through invocation of a with step in.
step_action = StepIn;
break_point_hit_count = 0;
expected_step_sequence = "adacadabcbadacada";
a->Call(env->Global(), 0, NULL);
CHECK_EQ(strlen(expected_step_sequence), break_point_hit_count);
// Step through invocation of a with step next.
step_action = StepNext;
break_point_hit_count = 0;
expected_step_sequence = "aaaa";
a->Call(env->Global(), 0, NULL);
CHECK_EQ(strlen(expected_step_sequence), break_point_hit_count);
// Step through invocation of a with step out.
step_action = StepOut;
break_point_hit_count = 0;
expected_step_sequence = "a";
a->Call(env->Global(), 0, NULL);
CHECK_EQ(strlen(expected_step_sequence), break_point_hit_count);
// Get rid of the debug event listener.
v8::Debug::RemoveDebugEventListener(DebugEventStepSequence);
}
TEST(StepInOutBranch) {
v8::HandleScope scope;
DebugLocalContext env;
// Create a function for checking the function when hitting a break point.
frame_function_name = CompileFunction(&env,
frame_function_name_source,
"frame_function_name");
// Register a debug event listener which steps and counts.
v8::Debug::AddDebugEventListener(DebugEventStepSequence);
// Create functions for testing stepping.
const char* src = "function a() {b(false);c();}; "
"function b(x) {if(x){c();};}; "
"function c() {}; ";
v8::Local<v8::Function> a = CompileFunction(&env, src, "a");
SetBreakPoint(a, 0);
// Step through invocation of a.
step_action = StepIn;
break_point_hit_count = 0;
expected_step_sequence = "abaca";
a->Call(env->Global(), 0, NULL);
CHECK_EQ(strlen(expected_step_sequence), break_point_hit_count);
// Get rid of the debug event listener.
v8::Debug::RemoveDebugEventListener(DebugEventStepSequence);
}
// Test that step in does not step into native functions.
TEST(DebugStepNatives) {
v8::HandleScope scope;
DebugLocalContext env;
// Create a function for testing stepping.
v8::Local<v8::Function> foo = CompileFunction(
&env,
"function foo(){debugger;Math.sin(1);}",
"foo");
// Register a debug event listener which steps and counts.
v8::Debug::AddDebugEventListener(DebugEventStep);
step_action = StepIn;
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
// With stepping all break locations are hit.
CHECK_EQ(3, break_point_hit_count);
v8::Debug::RemoveDebugEventListener(DebugEventStep);
// Register a debug event listener which just counts.
v8::Debug::AddDebugEventListener(DebugEventBreakPointHitCount);
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
// Without stepping only active break points are hit.
CHECK_EQ(1, break_point_hit_count);
v8::Debug::RemoveDebugEventListener(DebugEventBreakPointHitCount);
}
// Test break on exceptions. For each exception break combination the number
// of debug event exception callbacks and message callbacks are collected. The
// number of debug event exception callbacks are cused to check that the
// debugger is called correctly and the number of message callbacks is used to
// check that uncaught exceptions are still returned even if there is a break
// for them.
TEST(BreakOnException) {
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
v8::internal::Top::TraceException(false);
// Create functions for testing break on exception.
v8::Local<v8::Function> throws =
CompileFunction(&env, "function throws(){throw 1;}", "throws");
v8::Local<v8::Function> caught =
CompileFunction(&env,
"function caught(){try {throws();} catch(e) {};}",
"caught");
v8::Local<v8::Function> notCaught =
CompileFunction(&env, "function notCaught(){throws();}", "notCaught");
v8::V8::AddMessageListener(MessageCallbackCount);
v8::Debug::AddDebugEventListener(DebugEventCounter);
// Initial state should be break on uncaught exception.
DebugEventCounterClear();
MessageCallbackCountClear();
caught->Call(env->Global(), 0, NULL);
CHECK_EQ(0, exception_hit_count);
CHECK_EQ(0, uncaught_exception_hit_count);
CHECK_EQ(0, message_callback_count);
notCaught->Call(env->Global(), 0, NULL);
CHECK_EQ(1, exception_hit_count);
CHECK_EQ(1, uncaught_exception_hit_count);
CHECK_EQ(1, message_callback_count);
// No break on exception
DebugEventCounterClear();
MessageCallbackCountClear();
ChangeBreakOnException(false, false);
caught->Call(env->Global(), 0, NULL);
CHECK_EQ(0, exception_hit_count);
CHECK_EQ(0, uncaught_exception_hit_count);
CHECK_EQ(0, message_callback_count);
notCaught->Call(env->Global(), 0, NULL);
CHECK_EQ(0, exception_hit_count);
CHECK_EQ(0, uncaught_exception_hit_count);
CHECK_EQ(1, message_callback_count);
// Break on uncaught exception
DebugEventCounterClear();
MessageCallbackCountClear();
ChangeBreakOnException(false, true);
caught->Call(env->Global(), 0, NULL);
CHECK_EQ(0, exception_hit_count);
CHECK_EQ(0, uncaught_exception_hit_count);
CHECK_EQ(0, message_callback_count);
notCaught->Call(env->Global(), 0, NULL);
CHECK_EQ(1, exception_hit_count);
CHECK_EQ(1, uncaught_exception_hit_count);
CHECK_EQ(1, message_callback_count);
// Break on exception and uncaught exception
DebugEventCounterClear();
MessageCallbackCountClear();
ChangeBreakOnException(true, true);
caught->Call(env->Global(), 0, NULL);
CHECK_EQ(1, exception_hit_count);
CHECK_EQ(0, uncaught_exception_hit_count);
CHECK_EQ(0, message_callback_count);
notCaught->Call(env->Global(), 0, NULL);
CHECK_EQ(2, exception_hit_count);
CHECK_EQ(1, uncaught_exception_hit_count);
CHECK_EQ(1, message_callback_count);
// Break on exception
DebugEventCounterClear();
MessageCallbackCountClear();
ChangeBreakOnException(true, false);
caught->Call(env->Global(), 0, NULL);
CHECK_EQ(1, exception_hit_count);
CHECK_EQ(0, uncaught_exception_hit_count);
CHECK_EQ(0, message_callback_count);
notCaught->Call(env->Global(), 0, NULL);
CHECK_EQ(2, exception_hit_count);
CHECK_EQ(1, uncaught_exception_hit_count);
CHECK_EQ(1, message_callback_count);
// No break on exception using JavaScript
DebugEventCounterClear();
MessageCallbackCountClear();
ChangeBreakOnExceptionFromJS(false, false);
caught->Call(env->Global(), 0, NULL);
CHECK_EQ(0, exception_hit_count);
CHECK_EQ(0, uncaught_exception_hit_count);
CHECK_EQ(0, message_callback_count);
notCaught->Call(env->Global(), 0, NULL);
CHECK_EQ(0, exception_hit_count);
CHECK_EQ(0, uncaught_exception_hit_count);
CHECK_EQ(1, message_callback_count);
// Break on uncaught exception using JavaScript
DebugEventCounterClear();
MessageCallbackCountClear();
ChangeBreakOnExceptionFromJS(false, true);
caught->Call(env->Global(), 0, NULL);
CHECK_EQ(0, exception_hit_count);
CHECK_EQ(0, uncaught_exception_hit_count);
CHECK_EQ(0, message_callback_count);
notCaught->Call(env->Global(), 0, NULL);
CHECK_EQ(1, exception_hit_count);
CHECK_EQ(1, uncaught_exception_hit_count);
CHECK_EQ(1, message_callback_count);
// Break on exception and uncaught exception using JavaScript
DebugEventCounterClear();
MessageCallbackCountClear();
ChangeBreakOnExceptionFromJS(true, true);
caught->Call(env->Global(), 0, NULL);
CHECK_EQ(1, exception_hit_count);
CHECK_EQ(0, message_callback_count);
CHECK_EQ(0, uncaught_exception_hit_count);
notCaught->Call(env->Global(), 0, NULL);
CHECK_EQ(2, exception_hit_count);
CHECK_EQ(1, uncaught_exception_hit_count);
CHECK_EQ(1, message_callback_count);
// Break on exception using JavaScript
DebugEventCounterClear();
MessageCallbackCountClear();
ChangeBreakOnExceptionFromJS(true, false);
caught->Call(env->Global(), 0, NULL);
CHECK_EQ(1, exception_hit_count);
CHECK_EQ(0, uncaught_exception_hit_count);
CHECK_EQ(0, message_callback_count);
notCaught->Call(env->Global(), 0, NULL);
CHECK_EQ(2, exception_hit_count);
CHECK_EQ(1, uncaught_exception_hit_count);
CHECK_EQ(1, message_callback_count);
v8::Debug::RemoveDebugEventListener(DebugEventCounter);
v8::V8::RemoveMessageListeners(MessageCallbackCount);
}
TEST(StepWithException) {
v8::HandleScope scope;
DebugLocalContext env;
// Create a function for checking the function when hitting a break point.
frame_function_name = CompileFunction(&env,
frame_function_name_source,
"frame_function_name");
// Register a debug event listener which steps and counts.
v8::Debug::AddDebugEventListener(DebugEventStepSequence);
// Create functions for testing stepping.
const char* src = "function a() { n(); }; "
"function b() { c(); }; "
"function c() { n(); }; "
"function d() { x = 1; try { e(); } catch(x) { x = 2; } }; "
"function e() { n(); }; "
"function f() { x = 1; try { g(); } catch(x) { x = 2; } }; "
"function g() { h(); }; "
"function h() { x = 1; throw 1; }; ";
// Step through invocation of a.
v8::Local<v8::Function> a = CompileFunction(&env, src, "a");
SetBreakPoint(a, 0);
step_action = StepIn;
break_point_hit_count = 0;
expected_step_sequence = "aa";
a->Call(env->Global(), 0, NULL);
CHECK_EQ(strlen(expected_step_sequence), break_point_hit_count);
// Step through invocation of b + c.
v8::Local<v8::Function> b = CompileFunction(&env, src, "b");
SetBreakPoint(b, 0);
step_action = StepIn;
break_point_hit_count = 0;
expected_step_sequence = "bcc";
b->Call(env->Global(), 0, NULL);
CHECK_EQ(strlen(expected_step_sequence), break_point_hit_count);
// Step through invocation of d + e.
v8::Local<v8::Function> d = CompileFunction(&env, src, "d");
SetBreakPoint(d, 0);
ChangeBreakOnException(false, true);
step_action = StepIn;
break_point_hit_count = 0;
expected_step_sequence = "ddedd";
d->Call(env->Global(), 0, NULL);
CHECK_EQ(strlen(expected_step_sequence), break_point_hit_count);
// Step through invocation of d + e now with break on caught exceptions.
ChangeBreakOnException(true, true);
step_action = StepIn;
break_point_hit_count = 0;
expected_step_sequence = "ddeedd";
d->Call(env->Global(), 0, NULL);
CHECK_EQ(strlen(expected_step_sequence), break_point_hit_count);
// Step through invocation of f + g + h.
v8::Local<v8::Function> f = CompileFunction(&env, src, "f");
SetBreakPoint(f, 0);
ChangeBreakOnException(false, true);
step_action = StepIn;
break_point_hit_count = 0;
expected_step_sequence = "ffghff";
f->Call(env->Global(), 0, NULL);
CHECK_EQ(strlen(expected_step_sequence), break_point_hit_count);
// Step through invocation of f + g + h now with break on caught exceptions.
ChangeBreakOnException(true, true);
step_action = StepIn;
break_point_hit_count = 0;
expected_step_sequence = "ffghhff";
f->Call(env->Global(), 0, NULL);
CHECK_EQ(strlen(expected_step_sequence), break_point_hit_count);
// Get rid of the debug event listener.
v8::Debug::RemoveDebugEventListener(DebugEventStepSequence);
}
TEST(DebugBreak) {
v8::HandleScope scope;
DebugLocalContext env;
// This test should be run with option --verify-heap. This is an ASSERT and
// not a CHECK as --verify-heap is only available in debug mode.
ASSERT(v8::internal::FLAG_verify_heap);
// Register a debug event listener which sets the break flag and counts.
v8::Debug::AddDebugEventListener(DebugEventBreak);
// Create a function for testing stepping.
const char* src = "function f0() {}"
"function f1(x1) {}"
"function f2(x1,x2) {}"
"function f3(x1,x2,x3) {}";
v8::Local<v8::Function> f0 = CompileFunction(&env, src, "f0");
v8::Local<v8::Function> f1 = CompileFunction(&env, src, "f1");
v8::Local<v8::Function> f2 = CompileFunction(&env, src, "f2");
v8::Local<v8::Function> f3 = CompileFunction(&env, src, "f3");
// Call the function to make sure it is compiled.
v8::Handle<v8::Value> argv[] = { v8::Number::New(1),
v8::Number::New(1),
v8::Number::New(1),
v8::Number::New(1) };
// Call all functions to make sure that they are compiled.
f0->Call(env->Global(), 0, NULL);
f1->Call(env->Global(), 0, NULL);
f2->Call(env->Global(), 0, NULL);
f3->Call(env->Global(), 0, NULL);
// Set the debug break flag.
v8::Debug::DebugBreak();
// Call all functions with different argument count.
break_point_hit_count = 0;
for (unsigned int i = 0; i < ARRAY_SIZE(argv); i++) {
f0->Call(env->Global(), i, argv);
f1->Call(env->Global(), i, argv);
f2->Call(env->Global(), i, argv);
f3->Call(env->Global(), i, argv);
}
// One break for each function called.
CHECK_EQ(4 * ARRAY_SIZE(argv), break_point_hit_count);
// Get rid of the debug event listener.
v8::Debug::RemoveDebugEventListener(DebugEventBreak);
}
// Test to ensure that JavaScript code keeps running while the debug break
// through the stack limit flag is set but breaks are disabled.
TEST(DisableBreak) {
v8::HandleScope scope;
DebugLocalContext env;
// Register a debug event listener which sets the break flag and counts.
v8::Debug::AddDebugEventListener(DebugEventCounter);
// Create a function for testing stepping.
const char* src = "function f() {g()};function g(){i=0; while(i<10){i++}}";
v8::Local<v8::Function> f = CompileFunction(&env, src, "f");
// Set the debug break flag.
v8::Debug::DebugBreak();
// Call all functions with different argument count.
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
{
v8::Debug::DebugBreak();
v8::internal::DisableBreak disable_break(true);
f->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
}
f->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
// Get rid of the debug event listener.
v8::Debug::RemoveDebugEventListener(DebugEventBreak);
}
static v8::Handle<v8::Array> NamedEnum(const v8::AccessorInfo&) {
v8::Handle<v8::Array> result = v8::Array::New(3);
result->Set(v8::Integer::New(0), v8::String::New("a"));
result->Set(v8::Integer::New(1), v8::String::New("b"));
result->Set(v8::Integer::New(2), v8::String::New("c"));
return result;
}
static v8::Handle<v8::Array> IndexedEnum(const v8::AccessorInfo&) {
v8::Handle<v8::Array> result = v8::Array::New(2);
result->Set(v8::Integer::New(0), v8::Number::New(1));
result->Set(v8::Integer::New(1), v8::Number::New(10));
return result;
}
static v8::Handle<v8::Value> NamedGetter(v8::Local<v8::String> name,
const v8::AccessorInfo& info) {
v8::String::AsciiValue n(name);
if (strcmp(*n, "a") == 0) {
return v8::String::New("AA");
} else if (strcmp(*n, "b") == 0) {
return v8::String::New("BB");
} else if (strcmp(*n, "c") == 0) {
return v8::String::New("CC");
} else {
return v8::Undefined();
}
return name;
}
static v8::Handle<v8::Value> IndexedGetter(uint32_t index,
const v8::AccessorInfo& info) {
return v8::Number::New(index + 1);
}
TEST(InterceptorPropertyMirror) {
// Create a V8 environment with debug access.
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
// Create object with named interceptor.
v8::Handle<v8::ObjectTemplate> named = v8::ObjectTemplate::New();
named->SetNamedPropertyHandler(NamedGetter, NULL, NULL, NULL, NamedEnum);
env->Global()->Set(v8::String::New("intercepted_named"),
named->NewInstance());
// Create object with indexed interceptor.
v8::Handle<v8::ObjectTemplate> indexed = v8::ObjectTemplate::New();
indexed->SetIndexedPropertyHandler(IndexedGetter,
NULL,
NULL,
NULL,
IndexedEnum);
env->Global()->Set(v8::String::New("intercepted_indexed"),
indexed->NewInstance());
// Create object with both named and indexed interceptor.
v8::Handle<v8::ObjectTemplate> both = v8::ObjectTemplate::New();
both->SetNamedPropertyHandler(NamedGetter, NULL, NULL, NULL, NamedEnum);
both->SetIndexedPropertyHandler(IndexedGetter, NULL, NULL, NULL, IndexedEnum);
env->Global()->Set(v8::String::New("intercepted_both"), both->NewInstance());
// Get mirrors for the three objects with interceptor.
CompileRun(
"named_mirror = debug.MakeMirror(intercepted_named);"
"indexed_mirror = debug.MakeMirror(intercepted_indexed);"
"both_mirror = debug.MakeMirror(intercepted_both)");
CHECK(CompileRun(
"named_mirror instanceof debug.ObjectMirror")->BooleanValue());
CHECK(CompileRun(
"indexed_mirror instanceof debug.ObjectMirror")->BooleanValue());
CHECK(CompileRun(
"both_mirror instanceof debug.ObjectMirror")->BooleanValue());
// Get the property names from the interceptors
CompileRun(
"named_names = named_mirror.interceptorPropertyNames();"
"indexed_names = indexed_mirror.interceptorPropertyNames();"
"both_names = both_mirror.interceptorPropertyNames()");
CHECK_EQ(3, CompileRun("named_names.length")->Int32Value());
CHECK_EQ(2, CompileRun("indexed_names.length")->Int32Value());
CHECK_EQ(5, CompileRun("both_names.length")->Int32Value());
// Check the expected number of properties.
const char* source;
source = "named_mirror.interceptorProperties().length";
CHECK_EQ(3, CompileRun(source)->Int32Value());
source = "indexed_mirror.interceptorProperties().length";
CHECK_EQ(2, CompileRun(source)->Int32Value());
source = "both_mirror.interceptorProperties().length";
CHECK_EQ(5, CompileRun(source)->Int32Value());
source = "both_mirror.interceptorProperties(1).length";
CHECK_EQ(3, CompileRun(source)->Int32Value());
source = "both_mirror.interceptorProperties(2).length";
CHECK_EQ(2, CompileRun(source)->Int32Value());
source = "both_mirror.interceptorProperties(3).length";
CHECK_EQ(5, CompileRun(source)->Int32Value());
// Get the interceptor properties for the object with both types of
// interceptors.
CompileRun("both_values = both_mirror.interceptorProperties()");
// Check the mirror hierachy
source = "both_values[0] instanceof debug.PropertyMirror";
CHECK(CompileRun(source)->BooleanValue());
source = "both_values[0] instanceof debug.InterceptorPropertyMirror";
CHECK(CompileRun(source)->BooleanValue());
source = "both_values[1] instanceof debug.InterceptorPropertyMirror";
CHECK(CompileRun(source)->BooleanValue());
source = "both_values[2] instanceof debug.InterceptorPropertyMirror";
CHECK(CompileRun(source)->BooleanValue());
source = "both_values[3] instanceof debug.PropertyMirror";
CHECK(CompileRun(source)->BooleanValue());
source = "both_values[3] instanceof debug.InterceptorPropertyMirror";
CHECK(CompileRun(source)->BooleanValue());
source = "both_values[4] instanceof debug.InterceptorPropertyMirror";
CHECK(CompileRun(source)->BooleanValue());
// Check the property names.
source = "both_values[0].name() == 'a'";
CHECK(CompileRun(source)->BooleanValue());
source = "both_values[1].name() == 'b'";
CHECK(CompileRun(source)->BooleanValue());
source = "both_values[2].name() == 'c'";
CHECK(CompileRun(source)->BooleanValue());
source = "both_values[3].name() == 1";
CHECK(CompileRun(source)->BooleanValue());
source = "both_values[4].name() == 10";
CHECK(CompileRun(source)->BooleanValue());
// Check the property values.
source = "both_values[0].value().value() == 'AA'";
CHECK(CompileRun(source)->BooleanValue());
source = "both_values[1].value().value() == 'BB'";
CHECK(CompileRun(source)->BooleanValue());
source = "both_values[2].value().value() == 'CC'";
CHECK(CompileRun(source)->BooleanValue());
source = "both_values[3].value().value() == 2";
CHECK(CompileRun(source)->BooleanValue());
source = "both_values[4].value().value() == 11";
CHECK(CompileRun(source)->BooleanValue());
}
// Multithreaded tests of JSON debugger protocol
// Support classes
// Copies a C string to a 16-bit string. Does not check for buffer overflow.
// Does not use the V8 engine to convert strings, so it can be used
// in any thread. Returns the length of the string.
int AsciiToUtf16(const char* input_buffer, uint16_t* output_buffer) {
int i;
for (i = 0; input_buffer[i] != '\0'; ++i) {
// ASCII does not use chars > 127, but be careful anyway.
output_buffer[i] = static_cast<unsigned char>(input_buffer[i]);
}
output_buffer[i] = 0;
return i;
}
// Copies a 16-bit string to a C string by dropping the high byte of
// each character. Does not check for buffer overflow.
// Can be used in any thread. Requires string length as an input.
int Utf16ToAscii(const uint16_t* input_buffer, int length,
char* output_buffer) {
for (int i = 0; i < length; ++i) {
output_buffer[i] = static_cast<char>(input_buffer[i]);
}
output_buffer[length] = '\0';
return length;
}
// Provides synchronization between k threads, where k is an input to the
// constructor. The Wait() call blocks a thread until it is called for the
// k'th time, then all calls return. Each ThreadBarrier object can only
// be used once.
class ThreadBarrier {
public:
explicit ThreadBarrier(int num_threads);
~ThreadBarrier();
void Wait();
private:
int num_threads_;
int num_blocked_;
v8::internal::Mutex* lock_;
v8::internal::Semaphore* sem_;
bool invalid_;
};
ThreadBarrier::ThreadBarrier(int num_threads)
: num_threads_(num_threads), num_blocked_(0) {
lock_ = OS::CreateMutex();
sem_ = OS::CreateSemaphore(0);
invalid_ = false; // A barrier may only be used once. Then it is invalid.
}
// Do not call, due to race condition with Wait().
// Could be resolved with Pthread condition variables.
ThreadBarrier::~ThreadBarrier() {
lock_->Lock();
delete lock_;
delete sem_;
}
void ThreadBarrier::Wait() {
lock_->Lock();
ASSERT(!invalid_);
if (num_blocked_ == num_threads_ - 1) {
// Signal and unblock all waiting threads.
for (int i = 0; i < num_threads_ - 1; ++i) {
sem_->Signal();
}
invalid_ = true;
printf("BARRIER\n\n");
fflush(stdout);
lock_->Unlock();
} else { // Wait for the semaphore.
++num_blocked_;
lock_->Unlock(); // Potential race condition with destructor because
sem_->Wait(); // these two lines are not atomic.
}
}
// A set containing enough barriers and semaphores for any of the tests.
class Barriers {
public:
Barriers();
void Initialize();
ThreadBarrier barrier_1;
ThreadBarrier barrier_2;
ThreadBarrier barrier_3;
ThreadBarrier barrier_4;
ThreadBarrier barrier_5;
v8::internal::Semaphore* semaphore_1;
v8::internal::Semaphore* semaphore_2;
};
Barriers::Barriers() : barrier_1(2), barrier_2(2),
barrier_3(2), barrier_4(2), barrier_5(2) {}
void Barriers::Initialize() {
semaphore_1 = OS::CreateSemaphore(0);
semaphore_2 = OS::CreateSemaphore(0);
}
// We match parts of the message to decide if it is a break message.
bool IsBreakEventMessage(char *message) {
const char* type_event = "\"type\":\"event\"";
const char* event_break = "\"event\":\"break\"";
// Does the message contain both type:event and event:break?
return strstr(message, type_event) != NULL &&
strstr(message, event_break) != NULL;
}
/* Test MessageQueues */
/* Tests the message queues that hold debugger commands and
* response messages to the debugger. Fills queues and makes
* them grow.
*/
Barriers message_queue_barriers;
// This is the debugger thread, that executes no v8 calls except
// placing JSON debugger commands in the queue.
class MessageQueueDebuggerThread : public v8::internal::Thread {
public:
void Run();
};
static void MessageHandler(const uint16_t* message, int length, void *data) {
static char print_buffer[1000];
Utf16ToAscii(message, length, print_buffer);
if (IsBreakEventMessage(print_buffer)) {
// Lets test script wait until break occurs to send commands.
// Signals when a break is reported.
message_queue_barriers.semaphore_2->Signal();
}
// Allow message handler to block on a semaphore, to test queueing of
// messages while blocked.
message_queue_barriers.semaphore_1->Wait();
printf("%s\n", print_buffer);
fflush(stdout);
}
void MessageQueueDebuggerThread::Run() {
const int kBufferSize = 1000;
uint16_t buffer_1[kBufferSize];
uint16_t buffer_2[kBufferSize];
const char* command_1 =
"{\"seq\":117,"
"\"type\":\"request\","
"\"command\":\"evaluate\","
"\"arguments\":{\"expression\":\"1+2\"}}";
const char* command_2 =
"{\"seq\":118,"
"\"type\":\"request\","
"\"command\":\"evaluate\","
"\"arguments\":{\"expression\":\"1+a\"}}";
const char* command_3 =
"{\"seq\":119,"
"\"type\":\"request\","
"\"command\":\"evaluate\","
"\"arguments\":{\"expression\":\"c.d * b\"}}";
const char* command_continue =
"{\"seq\":106,"
"\"type\":\"request\","
"\"command\":\"continue\"}";
const char* command_single_step =
"{\"seq\":107,"
"\"type\":\"request\","
"\"command\":\"continue\","
"\"arguments\":{\"stepaction\":\"next\"}}";
/* Interleaved sequence of actions by the two threads:*/
// Main thread compiles and runs source_1
message_queue_barriers.barrier_1.Wait();
// Post 6 commands, filling the command queue and making it expand.
// These calls return immediately, but the commands stay on the queue
// until the execution of source_2.
// Note: AsciiToUtf16 executes before SendCommand, so command is copied
// to buffer before buffer is sent to SendCommand.
v8::Debug::SendCommand(buffer_1, AsciiToUtf16(command_1, buffer_1));
v8::Debug::SendCommand(buffer_2, AsciiToUtf16(command_2, buffer_2));
v8::Debug::SendCommand(buffer_2, AsciiToUtf16(command_3, buffer_2));
v8::Debug::SendCommand(buffer_2, AsciiToUtf16(command_3, buffer_2));
v8::Debug::SendCommand(buffer_2, AsciiToUtf16(command_3, buffer_2));
v8::Debug::SendCommand(buffer_2, AsciiToUtf16(command_continue, buffer_2));
message_queue_barriers.barrier_2.Wait();
// Main thread compiles and runs source_2.
// Queued commands are executed at the start of compilation of source_2.
message_queue_barriers.barrier_3.Wait();
// Free the message handler to process all the messages from the queue.
for (int i = 0; i < 20 ; ++i) {
message_queue_barriers.semaphore_1->Signal();
}
// Main thread compiles and runs source_3.
// source_3 includes a debugger statement, which causes a break event.
// Wait on break event from hitting "debugger" statement
message_queue_barriers.semaphore_2->Wait();
// These should execute after the "debugger" statement in source_2
v8::Debug::SendCommand(buffer_2, AsciiToUtf16(command_single_step, buffer_2));
// Wait on break event after a single step executes.
message_queue_barriers.semaphore_2->Wait();
v8::Debug::SendCommand(buffer_1, AsciiToUtf16(command_2, buffer_1));
v8::Debug::SendCommand(buffer_2, AsciiToUtf16(command_continue, buffer_2));
// Main thread continues running source_3 to end, waits for this thread.
}
MessageQueueDebuggerThread message_queue_debugger_thread;
// This thread runs the v8 engine.
TEST(MessageQueues) {
// Create a V8 environment
v8::HandleScope scope;
DebugLocalContext env;
message_queue_barriers.Initialize();
v8::Debug::SetMessageHandler(MessageHandler);
message_queue_debugger_thread.Start();
const char* source_1 = "a = 3; b = 4; c = new Object(); c.d = 5;";
const char* source_2 = "e = 17;";
const char* source_3 = "a = 4; debugger; a = 5; a = 6; a = 7;";
// See MessageQueueDebuggerThread::Run for interleaved sequence of
// API calls and events in the two threads.
CompileRun(source_1);
message_queue_barriers.barrier_1.Wait();
message_queue_barriers.barrier_2.Wait();
v8::Debug::DebugBreak();
CompileRun(source_2);
message_queue_barriers.barrier_3.Wait();
CompileRun(source_3);
message_queue_debugger_thread.Join();
fflush(stdout);
}
/* Test ThreadedDebugging */
/* This test interrupts a running infinite loop that is
* occupying the v8 thread by a break command from the
* debugger thread. It then changes the value of a
* global object, to make the loop terminate.
*/
Barriers threaded_debugging_barriers;
class V8Thread : public v8::internal::Thread {
public:
void Run();
};
class DebuggerThread : public v8::internal::Thread {
public:
void Run();
};
static void ThreadedMessageHandler(const uint16_t* message, int length,
void *data) {
static char print_buffer[1000];
Utf16ToAscii(message, length, print_buffer);
if (IsBreakEventMessage(print_buffer)) {
threaded_debugging_barriers.barrier_2.Wait();
}
printf("%s\n", print_buffer);
fflush(stdout);
}
void V8Thread::Run() {
const char* source_1 =
"flag = true;\n"
"function bar( new_value ) {\n"
" flag = new_value;\n"
" return \"Return from bar(\" + new_value + \")\";\n"
"}\n"
"\n"
"function foo() {\n"
" var x = 1;\n"
" while ( flag == true ) {\n"
" x = x + 1;\n"
" }\n"
"}\n"
"\n";
const char* source_2 = "foo();\n";
v8::HandleScope scope;
DebugLocalContext env;
v8::Debug::SetMessageHandler(&ThreadedMessageHandler);
CompileRun(source_1);
threaded_debugging_barriers.barrier_1.Wait();
CompileRun(source_2);
}
void DebuggerThread::Run() {
const int kBufSize = 1000;
uint16_t buffer[kBufSize];
const char* command_1 = "{\"seq\":102,"
"\"type\":\"request\","
"\"command\":\"evaluate\","
"\"arguments\":{\"expression\":\"bar(false)\"}}";
const char* command_2 = "{\"seq\":103,"
"\"type\":\"request\","
"\"command\":\"continue\"}";
threaded_debugging_barriers.barrier_1.Wait();
v8::Debug::DebugBreak();
threaded_debugging_barriers.barrier_2.Wait();
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_1, buffer));
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_2, buffer));
}
DebuggerThread debugger_thread;
V8Thread v8_thread;
TEST(ThreadedDebugging) {
// Create a V8 environment
threaded_debugging_barriers.Initialize();
v8_thread.Start();
debugger_thread.Start();
v8_thread.Join();
debugger_thread.Join();
}
/* Test RecursiveBreakpoints */
/* In this test, the debugger evaluates a function with a breakpoint, after
* hitting a breakpoint in another function. We do this with both values
* of the flag enabling recursive breakpoints, and verify that the second
* breakpoint is hit when enabled, and missed when disabled.
*/
class BreakpointsV8Thread : public v8::internal::Thread {
public:
void Run();
};
class BreakpointsDebuggerThread : public v8::internal::Thread {
public:
void Run();
};
Barriers* breakpoints_barriers;
static void BreakpointsMessageHandler(const uint16_t* message,
int length,
void *data) {
static char print_buffer[1000];
Utf16ToAscii(message, length, print_buffer);
printf("%s\n", print_buffer);
fflush(stdout);
// Is break_template a prefix of the message?
if (IsBreakEventMessage(print_buffer)) {
breakpoints_barriers->semaphore_1->Signal();
}
}
void BreakpointsV8Thread::Run() {
const char* source_1 = "var y_global = 3;\n"
"function cat( new_value ) {\n"
" var x = new_value;\n"
" y_global = 4;\n"
" x = 3 * x + 1;\n"
" y_global = 5;\n"
" return x;\n"
"}\n"
"\n"
"function dog() {\n"
" var x = 1;\n"
" x = y_global;"
" var z = 3;"
" x += 100;\n"
" return x;\n"
"}\n"
"\n";
const char* source_2 = "cat(17);\n"
"cat(19);\n";
v8::HandleScope scope;
DebugLocalContext env;
v8::Debug::SetMessageHandler(&BreakpointsMessageHandler);
CompileRun(source_1);
breakpoints_barriers->barrier_1.Wait();
breakpoints_barriers->barrier_2.Wait();
CompileRun(source_2);
}
void BreakpointsDebuggerThread::Run() {
const int kBufSize = 1000;
uint16_t buffer[kBufSize];
const char* command_1 = "{\"seq\":101,"
"\"type\":\"request\","
"\"command\":\"setbreakpoint\","
"\"arguments\":{\"type\":\"function\",\"target\":\"cat\",\"line\":3}}";
const char* command_2 = "{\"seq\":102,"
"\"type\":\"request\","
"\"command\":\"setbreakpoint\","
"\"arguments\":{\"type\":\"function\",\"target\":\"dog\",\"line\":3}}";
const char* command_3 = "{\"seq\":103,"
"\"type\":\"request\","
"\"command\":\"continue\"}";
const char* command_4 = "{\"seq\":104,"
"\"type\":\"request\","
"\"command\":\"evaluate\","
"\"arguments\":{\"expression\":\"dog()\",\"disable_break\":false}}";
const char* command_5 = "{\"seq\":105,"
"\"type\":\"request\","
"\"command\":\"evaluate\","
"\"arguments\":{\"expression\":\"x\",\"disable_break\":true}}";
const char* command_6 = "{\"seq\":106,"
"\"type\":\"request\","
"\"command\":\"continue\"}";
const char* command_7 = "{\"seq\":107,"
"\"type\":\"request\","
"\"command\":\"continue\"}";
const char* command_8 = "{\"seq\":108,"
"\"type\":\"request\","
"\"command\":\"evaluate\","
"\"arguments\":{\"expression\":\"dog()\",\"disable_break\":true}}";
const char* command_9 = "{\"seq\":109,"
"\"type\":\"request\","
"\"command\":\"continue\"}";
// v8 thread initializes, runs source_1
breakpoints_barriers->barrier_1.Wait();
// 1:Set breakpoint in cat().
v8::Debug::DebugBreak();
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_1, buffer));
// 2:Set breakpoint in dog()
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_2, buffer));
// 3:Continue
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_3, buffer));
breakpoints_barriers->barrier_2.Wait();
// v8 thread starts compiling source_2.
// Automatic break happens, to run queued commands
// breakpoints_barriers->semaphore_1->Wait();
// Commands 1 through 3 run, thread continues.
// v8 thread runs source_2 to breakpoint in cat().
// message callback receives break event.
breakpoints_barriers->semaphore_1->Wait();
// 4:Evaluate dog() (which has a breakpoint).
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_4, buffer));
// v8 thread hits breakpoint in dog()
breakpoints_barriers->semaphore_1->Wait(); // wait for break event
// 5:Evaluate x
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_5, buffer));
// 6:Continue evaluation of dog()
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_6, buffer));
// dog() finishes.
// 7:Continue evaluation of source_2, finish cat(17), hit breakpoint
// in cat(19).
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_7, buffer));
// message callback gets break event
breakpoints_barriers->semaphore_1->Wait(); // wait for break event
// 8: Evaluate dog() with breaks disabled
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_8, buffer));
// 9: Continue evaluation of source2, reach end.
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_9, buffer));
}
BreakpointsDebuggerThread breakpoints_debugger_thread;
BreakpointsV8Thread breakpoints_v8_thread;
TEST(RecursiveBreakpoints) {
// Create a V8 environment
Barriers stack_allocated_breakpoints_barriers;
stack_allocated_breakpoints_barriers.Initialize();
breakpoints_barriers = &stack_allocated_breakpoints_barriers;
breakpoints_v8_thread.Start();
breakpoints_debugger_thread.Start();
breakpoints_v8_thread.Join();
breakpoints_debugger_thread.Join();
}
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