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v8/test/cctest/test-cpu-profiler.cc
mikhail.naganov@gmail.com 4bbf058d53 Fix CPU profiler crash in start / stop sequence when non-existent name is passed 
BUG=51594
TEST=test-cpu-profiler/CrashIfStoppingLastNonExistentProfile

Review URL: http://codereview.chromium.org/3108004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5230 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-08-10 12:06:42 +00:00

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// Copyright 2010 the V8 project authors. All rights reserved.
//
// Tests of profiles generator and utilities.
#ifdef ENABLE_LOGGING_AND_PROFILING
#include "v8.h"
#include "cpu-profiler-inl.h"
#include "cctest.h"
namespace i = v8::internal;
using i::CodeEntry;
using i::CpuProfile;
using i::CpuProfiler;
using i::CpuProfilesCollection;
using i::ProfileGenerator;
using i::ProfileNode;
using i::ProfilerEventsProcessor;
using i::TokenEnumerator;
TEST(StartStop) {
CpuProfilesCollection profiles;
ProfileGenerator generator(&profiles);
ProfilerEventsProcessor processor(&generator);
processor.Start();
while (!processor.running()) {
i::Thread::YieldCPU();
}
processor.Stop();
processor.Join();
}
static v8::Persistent<v8::Context> env;
static void InitializeVM() {
if (env.IsEmpty()) env = v8::Context::New();
v8::HandleScope scope;
env->Enter();
}
static inline i::Address ToAddress(int n) {
return reinterpret_cast<i::Address>(n);
}
static void EnqueueTickSampleEvent(ProfilerEventsProcessor* proc,
i::Address frame1,
i::Address frame2 = NULL,
i::Address frame3 = NULL) {
i::TickSample* sample = proc->TickSampleEvent();
sample->pc = frame1;
sample->function = frame1;
sample->frames_count = 0;
if (frame2 != NULL) {
sample->stack[0] = frame2;
sample->frames_count = 1;
}
if (frame3 != NULL) {
sample->stack[1] = frame3;
sample->frames_count = 2;
}
}
namespace {
class TestSetup {
public:
TestSetup()
: old_flag_prof_browser_mode_(i::FLAG_prof_browser_mode) {
i::FLAG_prof_browser_mode = false;
}
~TestSetup() {
i::FLAG_prof_browser_mode = old_flag_prof_browser_mode_;
}
private:
bool old_flag_prof_browser_mode_;
};
} // namespace
TEST(CodeEvents) {
InitializeVM();
TestSetup test_setup;
CpuProfilesCollection profiles;
profiles.StartProfiling("", 1);
ProfileGenerator generator(&profiles);
ProfilerEventsProcessor processor(&generator);
processor.Start();
while (!processor.running()) {
i::Thread::YieldCPU();
}
// Enqueue code creation events.
i::HandleScope scope;
const char* aaa_str = "aaa";
i::Handle<i::String> aaa_name = i::Factory::NewStringFromAscii(
i::Vector<const char>(aaa_str, i::StrLength(aaa_str)));
processor.CodeCreateEvent(i::Logger::FUNCTION_TAG,
*aaa_name,
i::Heap::empty_string(),
0,
ToAddress(0x1000),
0x100);
processor.CodeCreateEvent(i::Logger::BUILTIN_TAG,
"bbb",
ToAddress(0x1200),
0x80);
processor.CodeCreateEvent(i::Logger::STUB_TAG, 5, ToAddress(0x1300), 0x10);
processor.CodeCreateEvent(i::Logger::BUILTIN_TAG,
"ddd",
ToAddress(0x1400),
0x80);
processor.CodeMoveEvent(ToAddress(0x1400), ToAddress(0x1500));
processor.CodeCreateEvent(i::Logger::STUB_TAG, 3, ToAddress(0x1600), 0x10);
processor.CodeDeleteEvent(ToAddress(0x1600));
processor.FunctionCreateEvent(ToAddress(0x1700), ToAddress(0x1000),
TokenEnumerator::kNoSecurityToken);
// Enqueue a tick event to enable code events processing.
EnqueueTickSampleEvent(&processor, ToAddress(0x1000));
processor.Stop();
processor.Join();
// Check the state of profile generator.
CodeEntry* entry1 = generator.code_map()->FindEntry(ToAddress(0x1000));
CHECK_NE(NULL, entry1);
CHECK_EQ(aaa_str, entry1->name());
CodeEntry* entry2 = generator.code_map()->FindEntry(ToAddress(0x1200));
CHECK_NE(NULL, entry2);
CHECK_EQ("bbb", entry2->name());
CodeEntry* entry3 = generator.code_map()->FindEntry(ToAddress(0x1300));
CHECK_NE(NULL, entry3);
CHECK_EQ("5", entry3->name());
CHECK_EQ(NULL, generator.code_map()->FindEntry(ToAddress(0x1400)));
CodeEntry* entry4 = generator.code_map()->FindEntry(ToAddress(0x1500));
CHECK_NE(NULL, entry4);
CHECK_EQ("ddd", entry4->name());
CHECK_EQ(NULL, generator.code_map()->FindEntry(ToAddress(0x1600)));
CodeEntry* entry5 = generator.code_map()->FindEntry(ToAddress(0x1700));
CHECK_NE(NULL, entry5);
CHECK_EQ(aaa_str, entry5->name());
}
template<typename T>
static int CompareProfileNodes(const T* p1, const T* p2) {
return strcmp((*p1)->entry()->name(), (*p2)->entry()->name());
}
TEST(TickEvents) {
TestSetup test_setup;
CpuProfilesCollection profiles;
profiles.StartProfiling("", 1);
ProfileGenerator generator(&profiles);
ProfilerEventsProcessor processor(&generator);
processor.Start();
while (!processor.running()) {
i::Thread::YieldCPU();
}
processor.CodeCreateEvent(i::Logger::BUILTIN_TAG,
"bbb",
ToAddress(0x1200),
0x80);
processor.CodeCreateEvent(i::Logger::STUB_TAG, 5, ToAddress(0x1300), 0x10);
processor.CodeCreateEvent(i::Logger::BUILTIN_TAG,
"ddd",
ToAddress(0x1400),
0x80);
EnqueueTickSampleEvent(&processor, ToAddress(0x1210));
EnqueueTickSampleEvent(&processor, ToAddress(0x1305), ToAddress(0x1220));
EnqueueTickSampleEvent(&processor,
ToAddress(0x1404),
ToAddress(0x1305),
ToAddress(0x1230));
processor.Stop();
processor.Join();
CpuProfile* profile =
profiles.StopProfiling(TokenEnumerator::kNoSecurityToken, "", 1);
CHECK_NE(NULL, profile);
// Check call trees.
const i::List<ProfileNode*>* top_down_root_children =
profile->top_down()->root()->children();
CHECK_EQ(1, top_down_root_children->length());
CHECK_EQ("bbb", top_down_root_children->last()->entry()->name());
const i::List<ProfileNode*>* top_down_bbb_children =
top_down_root_children->last()->children();
CHECK_EQ(1, top_down_bbb_children->length());
CHECK_EQ("5", top_down_bbb_children->last()->entry()->name());
const i::List<ProfileNode*>* top_down_stub_children =
top_down_bbb_children->last()->children();
CHECK_EQ(1, top_down_stub_children->length());
CHECK_EQ("ddd", top_down_stub_children->last()->entry()->name());
const i::List<ProfileNode*>* top_down_ddd_children =
top_down_stub_children->last()->children();
CHECK_EQ(0, top_down_ddd_children->length());
const i::List<ProfileNode*>* bottom_up_root_children_unsorted =
profile->bottom_up()->root()->children();
CHECK_EQ(3, bottom_up_root_children_unsorted->length());
i::List<ProfileNode*> bottom_up_root_children(3);
bottom_up_root_children.AddAll(*bottom_up_root_children_unsorted);
bottom_up_root_children.Sort(&CompareProfileNodes);
CHECK_EQ("5", bottom_up_root_children[0]->entry()->name());
CHECK_EQ("bbb", bottom_up_root_children[1]->entry()->name());
CHECK_EQ("ddd", bottom_up_root_children[2]->entry()->name());
const i::List<ProfileNode*>* bottom_up_stub_children =
bottom_up_root_children[0]->children();
CHECK_EQ(1, bottom_up_stub_children->length());
CHECK_EQ("bbb", bottom_up_stub_children->last()->entry()->name());
const i::List<ProfileNode*>* bottom_up_bbb_children =
bottom_up_root_children[1]->children();
CHECK_EQ(0, bottom_up_bbb_children->length());
const i::List<ProfileNode*>* bottom_up_ddd_children =
bottom_up_root_children[2]->children();
CHECK_EQ(1, bottom_up_ddd_children->length());
CHECK_EQ("5", bottom_up_ddd_children->last()->entry()->name());
const i::List<ProfileNode*>* bottom_up_ddd_stub_children =
bottom_up_ddd_children->last()->children();
CHECK_EQ(1, bottom_up_ddd_stub_children->length());
CHECK_EQ("bbb", bottom_up_ddd_stub_children->last()->entry()->name());
}
// http://crbug/51594
// This test must not crash.
TEST(CrashIfStoppingLastNonExistentProfile) {
InitializeVM();
TestSetup test_setup;
CpuProfiler::Setup();
CpuProfiler::StartProfiling("1");
CpuProfiler::StopProfiling("2");
CpuProfiler::StartProfiling("1");
CpuProfiler::StopProfiling("");
CpuProfiler::TearDown();
}
#endif // ENABLE_LOGGING_AND_PROFILING
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