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v8/test/cctest/test-profile-generator.cc
rmcilroy cb29f9cdbc [Interpreter] Add support for cpu profiler logging. 
Adds support for cpu profiler logging to the interpreter. Modifies the
the API to be passed AbstractCode objects instead of Code objects, and
adds extra functions to AbstractCode which is required by log.cc and
cpu-profiler.cc.

The main change in sampler.cc is to determine if a stack frame is an
interpreter stack frame, and if so, use the bytecode address as the pc
for that frame. This allows sampling of bytecode functions. This
requires adding support to SafeStackIterator to determine if a frame is
interpreted, which we do by checking the PC against pre-stored addresses
for the start and end of interpreter entry builtins.

Also removes CodeDeleteEvents which are dead code and haven't
been reported for some time.

Still to do is tracking source positions which will be done in a
followup CL.

BUG=v8:4766
LOG=N

Review URL: https://codereview.chromium.org/1728593002

Cr-Commit-Position: refs/heads/master@{#34321}
2016-02-26 11:04:55 +00:00

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// Copyright 2010 the V8 project authors. 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.
//
// Tests of profiles generator and utilities.
#include "src/v8.h"
#include "include/v8-profiler.h"
#include "src/profiler/cpu-profiler.h"
#include "src/profiler/profile-generator-inl.h"
#include "test/cctest/cctest.h"
#include "test/cctest/profiler-extension.h"
using i::CodeEntry;
using i::CodeMap;
using i::CpuProfile;
using i::CpuProfiler;
using i::CpuProfilesCollection;
using i::ProfileNode;
using i::ProfileTree;
using i::ProfileGenerator;
using i::TickSample;
using i::Vector;
TEST(ProfileNodeFindOrAddChild) {
CcTest::InitializeVM();
ProfileTree tree(CcTest::i_isolate());
ProfileNode* node = tree.root();
CodeEntry entry1(i::Logger::FUNCTION_TAG, "aaa");
ProfileNode* childNode1 = node->FindOrAddChild(&entry1);
CHECK(childNode1);
CHECK_EQ(childNode1, node->FindOrAddChild(&entry1));
CodeEntry entry2(i::Logger::FUNCTION_TAG, "bbb");
ProfileNode* childNode2 = node->FindOrAddChild(&entry2);
CHECK(childNode2);
CHECK_NE(childNode1, childNode2);
CHECK_EQ(childNode1, node->FindOrAddChild(&entry1));
CHECK_EQ(childNode2, node->FindOrAddChild(&entry2));
CodeEntry entry3(i::Logger::FUNCTION_TAG, "ccc");
ProfileNode* childNode3 = node->FindOrAddChild(&entry3);
CHECK(childNode3);
CHECK_NE(childNode1, childNode3);
CHECK_NE(childNode2, childNode3);
CHECK_EQ(childNode1, node->FindOrAddChild(&entry1));
CHECK_EQ(childNode2, node->FindOrAddChild(&entry2));
CHECK_EQ(childNode3, node->FindOrAddChild(&entry3));
}
TEST(ProfileNodeFindOrAddChildForSameFunction) {
CcTest::InitializeVM();
const char* aaa = "aaa";
ProfileTree tree(CcTest::i_isolate());
ProfileNode* node = tree.root();
CodeEntry entry1(i::Logger::FUNCTION_TAG, aaa);
ProfileNode* childNode1 = node->FindOrAddChild(&entry1);
CHECK(childNode1);
CHECK_EQ(childNode1, node->FindOrAddChild(&entry1));
// The same function again.
CodeEntry entry2(i::Logger::FUNCTION_TAG, aaa);
CHECK_EQ(childNode1, node->FindOrAddChild(&entry2));
// Now with a different security token.
CodeEntry entry3(i::Logger::FUNCTION_TAG, aaa);
CHECK_EQ(childNode1, node->FindOrAddChild(&entry3));
}
namespace {
class ProfileTreeTestHelper {
public:
explicit ProfileTreeTestHelper(const ProfileTree* tree)
: tree_(tree) { }
ProfileNode* Walk(CodeEntry* entry1,
CodeEntry* entry2 = NULL,
CodeEntry* entry3 = NULL) {
ProfileNode* node = tree_->root();
node = node->FindChild(entry1);
if (node == NULL) return NULL;
if (entry2 != NULL) {
node = node->FindChild(entry2);
if (node == NULL) return NULL;
}
if (entry3 != NULL) {
node = node->FindChild(entry3);
}
return node;
}
private:
const ProfileTree* tree_;
};
} // namespace
TEST(ProfileTreeAddPathFromEnd) {
CcTest::InitializeVM();
CodeEntry entry1(i::Logger::FUNCTION_TAG, "aaa");
CodeEntry entry2(i::Logger::FUNCTION_TAG, "bbb");
CodeEntry entry3(i::Logger::FUNCTION_TAG, "ccc");
ProfileTree tree(CcTest::i_isolate());
ProfileTreeTestHelper helper(&tree);
CHECK(!helper.Walk(&entry1));
CHECK(!helper.Walk(&entry2));
CHECK(!helper.Walk(&entry3));
CodeEntry* path[] = {NULL, &entry3, NULL, &entry2, NULL, NULL, &entry1, NULL};
Vector<CodeEntry*> path_vec(path, sizeof(path) / sizeof(path[0]));
tree.AddPathFromEnd(path_vec);
CHECK(!helper.Walk(&entry2));
CHECK(!helper.Walk(&entry3));
ProfileNode* node1 = helper.Walk(&entry1);
CHECK(node1);
CHECK_EQ(0u, node1->self_ticks());
CHECK(!helper.Walk(&entry1, &entry1));
CHECK(!helper.Walk(&entry1, &entry3));
ProfileNode* node2 = helper.Walk(&entry1, &entry2);
CHECK(node2);
CHECK_NE(node1, node2);
CHECK_EQ(0u, node2->self_ticks());
CHECK(!helper.Walk(&entry1, &entry2, &entry1));
CHECK(!helper.Walk(&entry1, &entry2, &entry2));
ProfileNode* node3 = helper.Walk(&entry1, &entry2, &entry3);
CHECK(node3);
CHECK_NE(node1, node3);
CHECK_NE(node2, node3);
CHECK_EQ(1u, node3->self_ticks());
tree.AddPathFromEnd(path_vec);
CHECK_EQ(node1, helper.Walk(&entry1));
CHECK_EQ(node2, helper.Walk(&entry1, &entry2));
CHECK_EQ(node3, helper.Walk(&entry1, &entry2, &entry3));
CHECK_EQ(0u, node1->self_ticks());
CHECK_EQ(0u, node2->self_ticks());
CHECK_EQ(2u, node3->self_ticks());
CodeEntry* path2[] = {&entry2, &entry2, &entry1};
Vector<CodeEntry*> path2_vec(path2, sizeof(path2) / sizeof(path2[0]));
tree.AddPathFromEnd(path2_vec);
CHECK(!helper.Walk(&entry2));
CHECK(!helper.Walk(&entry3));
CHECK_EQ(node1, helper.Walk(&entry1));
CHECK(!helper.Walk(&entry1, &entry1));
CHECK(!helper.Walk(&entry1, &entry3));
CHECK_EQ(node2, helper.Walk(&entry1, &entry2));
CHECK(!helper.Walk(&entry1, &entry2, &entry1));
CHECK_EQ(node3, helper.Walk(&entry1, &entry2, &entry3));
CHECK_EQ(2u, node3->self_ticks());
ProfileNode* node4 = helper.Walk(&entry1, &entry2, &entry2);
CHECK(node4);
CHECK_NE(node3, node4);
CHECK_EQ(1u, node4->self_ticks());
}
TEST(ProfileTreeCalculateTotalTicks) {
CcTest::InitializeVM();
ProfileTree empty_tree(CcTest::i_isolate());
CHECK_EQ(0u, empty_tree.root()->self_ticks());
empty_tree.root()->IncrementSelfTicks();
CHECK_EQ(1u, empty_tree.root()->self_ticks());
CodeEntry entry1(i::Logger::FUNCTION_TAG, "aaa");
CodeEntry* e1_path[] = {&entry1};
Vector<CodeEntry*> e1_path_vec(
e1_path, sizeof(e1_path) / sizeof(e1_path[0]));
ProfileTree single_child_tree(CcTest::i_isolate());
single_child_tree.AddPathFromEnd(e1_path_vec);
single_child_tree.root()->IncrementSelfTicks();
CHECK_EQ(1u, single_child_tree.root()->self_ticks());
ProfileTreeTestHelper single_child_helper(&single_child_tree);
ProfileNode* node1 = single_child_helper.Walk(&entry1);
CHECK(node1);
CHECK_EQ(1u, single_child_tree.root()->self_ticks());
CHECK_EQ(1u, node1->self_ticks());
CodeEntry entry2(i::Logger::FUNCTION_TAG, "bbb");
CodeEntry* e2_e1_path[] = {&entry2, &entry1};
Vector<CodeEntry*> e2_e1_path_vec(e2_e1_path,
sizeof(e2_e1_path) / sizeof(e2_e1_path[0]));
ProfileTree flat_tree(CcTest::i_isolate());
ProfileTreeTestHelper flat_helper(&flat_tree);
flat_tree.AddPathFromEnd(e1_path_vec);
flat_tree.AddPathFromEnd(e1_path_vec);
flat_tree.AddPathFromEnd(e2_e1_path_vec);
flat_tree.AddPathFromEnd(e2_e1_path_vec);
flat_tree.AddPathFromEnd(e2_e1_path_vec);
// Results in {root,0,0} -> {entry1,0,2} -> {entry2,0,3}
CHECK_EQ(0u, flat_tree.root()->self_ticks());
node1 = flat_helper.Walk(&entry1);
CHECK(node1);
CHECK_EQ(2u, node1->self_ticks());
ProfileNode* node2 = flat_helper.Walk(&entry1, &entry2);
CHECK(node2);
CHECK_EQ(3u, node2->self_ticks());
// Must calculate {root,5,0} -> {entry1,5,2} -> {entry2,3,3}
CHECK_EQ(0u, flat_tree.root()->self_ticks());
CHECK_EQ(2u, node1->self_ticks());
CodeEntry* e2_path[] = {&entry2};
Vector<CodeEntry*> e2_path_vec(
e2_path, sizeof(e2_path) / sizeof(e2_path[0]));
CodeEntry entry3(i::Logger::FUNCTION_TAG, "ccc");
CodeEntry* e3_path[] = {&entry3};
Vector<CodeEntry*> e3_path_vec(
e3_path, sizeof(e3_path) / sizeof(e3_path[0]));
ProfileTree wide_tree(CcTest::i_isolate());
ProfileTreeTestHelper wide_helper(&wide_tree);
wide_tree.AddPathFromEnd(e1_path_vec);
wide_tree.AddPathFromEnd(e1_path_vec);
wide_tree.AddPathFromEnd(e2_e1_path_vec);
wide_tree.AddPathFromEnd(e2_path_vec);
wide_tree.AddPathFromEnd(e2_path_vec);
wide_tree.AddPathFromEnd(e2_path_vec);
wide_tree.AddPathFromEnd(e3_path_vec);
wide_tree.AddPathFromEnd(e3_path_vec);
wide_tree.AddPathFromEnd(e3_path_vec);
wide_tree.AddPathFromEnd(e3_path_vec);
// Results in -> {entry1,0,2} -> {entry2,0,1}
// {root,0,0} -> {entry2,0,3}
// -> {entry3,0,4}
CHECK_EQ(0u, wide_tree.root()->self_ticks());
node1 = wide_helper.Walk(&entry1);
CHECK(node1);
CHECK_EQ(2u, node1->self_ticks());
ProfileNode* node1_2 = wide_helper.Walk(&entry1, &entry2);
CHECK(node1_2);
CHECK_EQ(1u, node1_2->self_ticks());
node2 = wide_helper.Walk(&entry2);
CHECK(node2);
CHECK_EQ(3u, node2->self_ticks());
ProfileNode* node3 = wide_helper.Walk(&entry3);
CHECK(node3);
CHECK_EQ(4u, node3->self_ticks());
// Calculates -> {entry1,3,2} -> {entry2,1,1}
// {root,10,0} -> {entry2,3,3}
// -> {entry3,4,4}
CHECK_EQ(0u, wide_tree.root()->self_ticks());
CHECK_EQ(2u, node1->self_ticks());
CHECK_EQ(1u, node1_2->self_ticks());
CHECK_EQ(3u, node2->self_ticks());
CHECK_EQ(4u, node3->self_ticks());
}
static inline i::Address ToAddress(int n) {
return reinterpret_cast<i::Address>(n);
}
TEST(CodeMapAddCode) {
CodeMap code_map;
CodeEntry entry1(i::Logger::FUNCTION_TAG, "aaa");
CodeEntry entry2(i::Logger::FUNCTION_TAG, "bbb");
CodeEntry entry3(i::Logger::FUNCTION_TAG, "ccc");
CodeEntry entry4(i::Logger::FUNCTION_TAG, "ddd");
code_map.AddCode(ToAddress(0x1500), &entry1, 0x200);
code_map.AddCode(ToAddress(0x1700), &entry2, 0x100);
code_map.AddCode(ToAddress(0x1900), &entry3, 0x50);
code_map.AddCode(ToAddress(0x1950), &entry4, 0x10);
CHECK(!code_map.FindEntry(0));
CHECK(!code_map.FindEntry(ToAddress(0x1500 - 1)));
CHECK_EQ(&entry1, code_map.FindEntry(ToAddress(0x1500)));
CHECK_EQ(&entry1, code_map.FindEntry(ToAddress(0x1500 + 0x100)));
CHECK_EQ(&entry1, code_map.FindEntry(ToAddress(0x1500 + 0x200 - 1)));
CHECK_EQ(&entry2, code_map.FindEntry(ToAddress(0x1700)));
CHECK_EQ(&entry2, code_map.FindEntry(ToAddress(0x1700 + 0x50)));
CHECK_EQ(&entry2, code_map.FindEntry(ToAddress(0x1700 + 0x100 - 1)));
CHECK(!code_map.FindEntry(ToAddress(0x1700 + 0x100)));
CHECK(!code_map.FindEntry(ToAddress(0x1900 - 1)));
CHECK_EQ(&entry3, code_map.FindEntry(ToAddress(0x1900)));
CHECK_EQ(&entry3, code_map.FindEntry(ToAddress(0x1900 + 0x28)));
CHECK_EQ(&entry4, code_map.FindEntry(ToAddress(0x1950)));
CHECK_EQ(&entry4, code_map.FindEntry(ToAddress(0x1950 + 0x7)));
CHECK_EQ(&entry4, code_map.FindEntry(ToAddress(0x1950 + 0x10 - 1)));
CHECK(!code_map.FindEntry(ToAddress(0x1950 + 0x10)));
CHECK(!code_map.FindEntry(ToAddress(0xFFFFFFFF)));
}
TEST(CodeMapMoveAndDeleteCode) {
CodeMap code_map;
CodeEntry entry1(i::Logger::FUNCTION_TAG, "aaa");
CodeEntry entry2(i::Logger::FUNCTION_TAG, "bbb");
code_map.AddCode(ToAddress(0x1500), &entry1, 0x200);
code_map.AddCode(ToAddress(0x1700), &entry2, 0x100);
CHECK_EQ(&entry1, code_map.FindEntry(ToAddress(0x1500)));
CHECK_EQ(&entry2, code_map.FindEntry(ToAddress(0x1700)));
code_map.MoveCode(ToAddress(0x1500), ToAddress(0x1700)); // Deprecate bbb.
CHECK(!code_map.FindEntry(ToAddress(0x1500)));
CHECK_EQ(&entry1, code_map.FindEntry(ToAddress(0x1700)));
CodeEntry entry3(i::Logger::FUNCTION_TAG, "ccc");
code_map.AddCode(ToAddress(0x1750), &entry3, 0x100);
CHECK(!code_map.FindEntry(ToAddress(0x1700)));
CHECK_EQ(&entry3, code_map.FindEntry(ToAddress(0x1750)));
}
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(RecordTickSample) {
TestSetup test_setup;
CpuProfilesCollection profiles(CcTest::heap());
profiles.StartProfiling("", false);
ProfileGenerator generator(&profiles);
CodeEntry* entry1 = profiles.NewCodeEntry(i::Logger::FUNCTION_TAG, "aaa");
CodeEntry* entry2 = profiles.NewCodeEntry(i::Logger::FUNCTION_TAG, "bbb");
CodeEntry* entry3 = profiles.NewCodeEntry(i::Logger::FUNCTION_TAG, "ccc");
generator.code_map()->AddCode(ToAddress(0x1500), entry1, 0x200);
generator.code_map()->AddCode(ToAddress(0x1700), entry2, 0x100);
generator.code_map()->AddCode(ToAddress(0x1900), entry3, 0x50);
// We are building the following calls tree:
// -> aaa - sample1
// aaa -> bbb -> ccc - sample2
// -> ccc -> aaa - sample3
TickSample sample1;
sample1.pc = ToAddress(0x1600);
sample1.tos = ToAddress(0x1500);
sample1.stack[0] = ToAddress(0x1510);
sample1.frames_count = 1;
generator.RecordTickSample(sample1);
TickSample sample2;
sample2.pc = ToAddress(0x1925);
sample2.tos = ToAddress(0x1900);
sample2.stack[0] = ToAddress(0x1780);
sample2.stack[1] = ToAddress(0x10000); // non-existent.
sample2.stack[2] = ToAddress(0x1620);
sample2.frames_count = 3;
generator.RecordTickSample(sample2);
TickSample sample3;
sample3.pc = ToAddress(0x1510);
sample3.tos = ToAddress(0x1500);
sample3.stack[0] = ToAddress(0x1910);
sample3.stack[1] = ToAddress(0x1610);
sample3.frames_count = 2;
generator.RecordTickSample(sample3);
CpuProfile* profile = profiles.StopProfiling("");
CHECK(profile);
ProfileTreeTestHelper top_down_test_helper(profile->top_down());
CHECK(!top_down_test_helper.Walk(entry2));
CHECK(!top_down_test_helper.Walk(entry3));
ProfileNode* node1 = top_down_test_helper.Walk(entry1);
CHECK(node1);
CHECK_EQ(entry1, node1->entry());
ProfileNode* node2 = top_down_test_helper.Walk(entry1, entry1);
CHECK(node2);
CHECK_EQ(entry1, node2->entry());
ProfileNode* node3 = top_down_test_helper.Walk(entry1, entry2, entry3);
CHECK(node3);
CHECK_EQ(entry3, node3->entry());
ProfileNode* node4 = top_down_test_helper.Walk(entry1, entry3, entry1);
CHECK(node4);
CHECK_EQ(entry1, node4->entry());
}
static void CheckNodeIds(ProfileNode* node, unsigned* expectedId) {
CHECK_EQ((*expectedId)++, node->id());
for (int i = 0; i < node->children()->length(); i++) {
CheckNodeIds(node->children()->at(i), expectedId);
}
}
TEST(SampleIds) {
TestSetup test_setup;
CpuProfilesCollection profiles(CcTest::heap());
profiles.StartProfiling("", true);
ProfileGenerator generator(&profiles);
CodeEntry* entry1 = profiles.NewCodeEntry(i::Logger::FUNCTION_TAG, "aaa");
CodeEntry* entry2 = profiles.NewCodeEntry(i::Logger::FUNCTION_TAG, "bbb");
CodeEntry* entry3 = profiles.NewCodeEntry(i::Logger::FUNCTION_TAG, "ccc");
generator.code_map()->AddCode(ToAddress(0x1500), entry1, 0x200);
generator.code_map()->AddCode(ToAddress(0x1700), entry2, 0x100);
generator.code_map()->AddCode(ToAddress(0x1900), entry3, 0x50);
// We are building the following calls tree:
// -> aaa #3 - sample1
// (root)#1 -> aaa #2 -> bbb #4 -> ccc #5 - sample2
// -> ccc #6 -> aaa #7 - sample3
TickSample sample1;
sample1.timestamp = v8::base::TimeTicks::HighResolutionNow();
sample1.pc = ToAddress(0x1600);
sample1.stack[0] = ToAddress(0x1510);
sample1.frames_count = 1;
generator.RecordTickSample(sample1);
TickSample sample2;
sample2.timestamp = v8::base::TimeTicks::HighResolutionNow();
sample2.pc = ToAddress(0x1925);
sample2.stack[0] = ToAddress(0x1780);
sample2.stack[1] = ToAddress(0x10000); // non-existent.
sample2.stack[2] = ToAddress(0x1620);
sample2.frames_count = 3;
generator.RecordTickSample(sample2);
TickSample sample3;
sample3.timestamp = v8::base::TimeTicks::HighResolutionNow();
sample3.pc = ToAddress(0x1510);
sample3.stack[0] = ToAddress(0x1910);
sample3.stack[1] = ToAddress(0x1610);
sample3.frames_count = 2;
generator.RecordTickSample(sample3);
CpuProfile* profile = profiles.StopProfiling("");
unsigned nodeId = 1;
CheckNodeIds(profile->top_down()->root(), &nodeId);
CHECK_EQ(7u, nodeId - 1);
CHECK_EQ(3, profile->samples_count());
unsigned expected_id[] = {3, 5, 7};
for (int i = 0; i < 3; i++) {
CHECK_EQ(expected_id[i], profile->sample(i)->id());
}
}
TEST(NoSamples) {
TestSetup test_setup;
CpuProfilesCollection profiles(CcTest::heap());
profiles.StartProfiling("", false);
ProfileGenerator generator(&profiles);
CodeEntry* entry1 = profiles.NewCodeEntry(i::Logger::FUNCTION_TAG, "aaa");
generator.code_map()->AddCode(ToAddress(0x1500), entry1, 0x200);
// We are building the following calls tree:
// (root)#1 -> aaa #2 -> aaa #3 - sample1
TickSample sample1;
sample1.pc = ToAddress(0x1600);
sample1.stack[0] = ToAddress(0x1510);
sample1.frames_count = 1;
generator.RecordTickSample(sample1);
CpuProfile* profile = profiles.StopProfiling("");
unsigned nodeId = 1;
CheckNodeIds(profile->top_down()->root(), &nodeId);
CHECK_EQ(3u, nodeId - 1);
CHECK_EQ(0, profile->samples_count());
}
static const ProfileNode* PickChild(const ProfileNode* parent,
const char* name) {
for (int i = 0; i < parent->children()->length(); ++i) {
const ProfileNode* child = parent->children()->at(i);
if (strcmp(child->entry()->name(), name) == 0) return child;
}
return NULL;
}
TEST(RecordStackTraceAtStartProfiling) {
// This test does not pass with inlining enabled since inlined functions
// don't appear in the stack trace.
i::FLAG_turbo_inlining = false;
i::FLAG_use_inlining = false;
v8::HandleScope scope(CcTest::isolate());
v8::Local<v8::Context> env = CcTest::NewContext(PROFILER_EXTENSION);
v8::Context::Scope context_scope(env);
CpuProfiler* profiler = CcTest::i_isolate()->cpu_profiler();
CHECK_EQ(0, profiler->GetProfilesCount());
CompileRun(
"function c() { startProfiling(); }\n"
"function b() { c(); }\n"
"function a() { b(); }\n"
"a();\n"
"stopProfiling();");
CHECK_EQ(1, profiler->GetProfilesCount());
CpuProfile* profile = profiler->GetProfile(0);
const ProfileTree* topDown = profile->top_down();
const ProfileNode* current = topDown->root();
const_cast<ProfileNode*>(current)->Print(0);
// The tree should look like this:
// (root)
// ""
// a
// b
// c
// There can also be:
// startProfiling
// if the sampler managed to get a tick.
current = PickChild(current, "");
CHECK(const_cast<ProfileNode*>(current));
current = PickChild(current, "a");
CHECK(const_cast<ProfileNode*>(current));
current = PickChild(current, "b");
CHECK(const_cast<ProfileNode*>(current));
current = PickChild(current, "c");
CHECK(const_cast<ProfileNode*>(current));
CHECK(current->children()->length() == 0 ||
current->children()->length() == 1);
if (current->children()->length() == 1) {
current = PickChild(current, "startProfiling");
CHECK_EQ(0, current->children()->length());
}
}
TEST(Issue51919) {
CpuProfilesCollection collection(CcTest::heap());
i::EmbeddedVector<char*,
CpuProfilesCollection::kMaxSimultaneousProfiles> titles;
for (int i = 0; i < CpuProfilesCollection::kMaxSimultaneousProfiles; ++i) {
i::Vector<char> title = i::Vector<char>::New(16);
i::SNPrintF(title, "%d", i);
CHECK(collection.StartProfiling(title.start(), false));
titles[i] = title.start();
}
CHECK(!collection.StartProfiling("maximum", false));
for (int i = 0; i < CpuProfilesCollection::kMaxSimultaneousProfiles; ++i)
i::DeleteArray(titles[i]);
}
static const v8::CpuProfileNode* PickChild(const v8::CpuProfileNode* parent,
const char* name) {
for (int i = 0; i < parent->GetChildrenCount(); ++i) {
const v8::CpuProfileNode* child = parent->GetChild(i);
v8::String::Utf8Value function_name(child->GetFunctionName());
if (strcmp(*function_name, name) == 0) return child;
}
return NULL;
}
TEST(ProfileNodeScriptId) {
// This test does not pass with inlining enabled since inlined functions
// don't appear in the stack trace.
i::FLAG_turbo_inlining = false;
i::FLAG_use_inlining = false;
v8::HandleScope scope(CcTest::isolate());
v8::Local<v8::Context> env = CcTest::NewContext(PROFILER_EXTENSION);
v8::Context::Scope context_scope(env);
v8::CpuProfiler* profiler = env->GetIsolate()->GetCpuProfiler();
i::CpuProfiler* iprofiler = reinterpret_cast<i::CpuProfiler*>(profiler);
CHECK_EQ(0, iprofiler->GetProfilesCount());
v8::Local<v8::Script> script_a =
v8_compile(v8_str("function a() { startProfiling(); }\n"));
script_a->Run(v8::Isolate::GetCurrent()->GetCurrentContext())
.ToLocalChecked();
v8::Local<v8::Script> script_b =
v8_compile(v8_str("function b() { a(); }\n"
"b();\n"
"stopProfiling();\n"));
script_b->Run(v8::Isolate::GetCurrent()->GetCurrentContext())
.ToLocalChecked();
CHECK_EQ(1, iprofiler->GetProfilesCount());
const v8::CpuProfile* profile = i::ProfilerExtension::last_profile;
const v8::CpuProfileNode* current = profile->GetTopDownRoot();
reinterpret_cast<ProfileNode*>(
const_cast<v8::CpuProfileNode*>(current))->Print(0);
// The tree should look like this:
// (root)
// ""
// b
// a
// There can also be:
// startProfiling
// if the sampler managed to get a tick.
current = PickChild(current, "");
CHECK(const_cast<v8::CpuProfileNode*>(current));
current = PickChild(current, "b");
CHECK(const_cast<v8::CpuProfileNode*>(current));
CHECK_EQ(script_b->GetUnboundScript()->GetId(), current->GetScriptId());
current = PickChild(current, "a");
CHECK(const_cast<v8::CpuProfileNode*>(current));
CHECK_EQ(script_a->GetUnboundScript()->GetId(), current->GetScriptId());
}
static const char* line_number_test_source_existing_functions =
"function foo_at_the_first_line() {\n"
"}\n"
"foo_at_the_first_line();\n"
"function lazy_func_at_forth_line() {}\n";
static const char* line_number_test_source_profile_time_functions =
"// Empty first line\n"
"function bar_at_the_second_line() {\n"
" foo_at_the_first_line();\n"
"}\n"
"bar_at_the_second_line();\n"
"function lazy_func_at_6th_line() {}";
int GetFunctionLineNumber(LocalContext* env, const char* name) {
CpuProfiler* profiler = CcTest::i_isolate()->cpu_profiler();
CodeMap* code_map = profiler->generator()->code_map();
i::Handle<i::JSFunction> func = i::Handle<i::JSFunction>::cast(
v8::Utils::OpenHandle(*v8::Local<v8::Function>::Cast(
(*(*env))
->Global()
->Get(v8::Isolate::GetCurrent()->GetCurrentContext(),
v8_str(name))
.ToLocalChecked())));
CodeEntry* func_entry = code_map->FindEntry(func->abstract_code()->address());
if (!func_entry)
FATAL(name);
return func_entry->line_number();
}
TEST(LineNumber) {
i::FLAG_use_inlining = false;
CcTest::InitializeVM();
LocalContext env;
i::Isolate* isolate = CcTest::i_isolate();
TestSetup test_setup;
i::HandleScope scope(isolate);
CompileRun(line_number_test_source_existing_functions);
CpuProfiler* profiler = isolate->cpu_profiler();
profiler->StartProfiling("LineNumber");
CompileRun(line_number_test_source_profile_time_functions);
profiler->processor()->StopSynchronously();
CHECK_EQ(1, GetFunctionLineNumber(&env, "foo_at_the_first_line"));
CHECK_EQ(0, GetFunctionLineNumber(&env, "lazy_func_at_forth_line"));
CHECK_EQ(2, GetFunctionLineNumber(&env, "bar_at_the_second_line"));
CHECK_EQ(0, GetFunctionLineNumber(&env, "lazy_func_at_6th_line"));
profiler->StopProfiling("LineNumber");
}
TEST(BailoutReason) {
v8::HandleScope scope(CcTest::isolate());
v8::Local<v8::Context> env = CcTest::NewContext(PROFILER_EXTENSION);
v8::Context::Scope context_scope(env);
v8::CpuProfiler* profiler = env->GetIsolate()->GetCpuProfiler();
i::CpuProfiler* iprofiler = reinterpret_cast<i::CpuProfiler*>(profiler);
CHECK_EQ(0, iprofiler->GetProfilesCount());
v8::Local<v8::Script> script =
v8_compile(v8_str("function Debugger() {\n"
" debugger;\n"
" startProfiling();\n"
"}\n"
"function TryFinally() {\n"
" try {\n"
" Debugger();\n"
" } finally { };\n"
"}\n"
"TryFinally();\n"
"stopProfiling();"));
script->Run(v8::Isolate::GetCurrent()->GetCurrentContext()).ToLocalChecked();
CHECK_EQ(1, iprofiler->GetProfilesCount());
const v8::CpuProfile* profile = i::ProfilerExtension::last_profile;
CHECK(profile);
const v8::CpuProfileNode* current = profile->GetTopDownRoot();
reinterpret_cast<ProfileNode*>(
const_cast<v8::CpuProfileNode*>(current))->Print(0);
// The tree should look like this:
// (root)
// ""
// kTryFinallyStatement
// kDebuggerStatement
current = PickChild(current, "");
CHECK(const_cast<v8::CpuProfileNode*>(current));
current = PickChild(current, "TryFinally");
CHECK(const_cast<v8::CpuProfileNode*>(current));
CHECK(!strcmp("TryFinallyStatement", current->GetBailoutReason()));
current = PickChild(current, "Debugger");
CHECK(const_cast<v8::CpuProfileNode*>(current));
CHECK(!strcmp("DebuggerStatement", current->GetBailoutReason()));
}
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