Add basic C++ implementation of CPU profiler.

test/cctest/test-profile-generator.cc

 // Copyright 2010 the V8 project authors. All rights reserved.
 //
 // Tests of profiles generator and utilities.
 
 #include "v8.h"
 #include "profile-generator-inl.h"
 #include "cctest.h"
 
 namespace i = v8::internal;
 
 using i::CodeEntry;
 using i::CodeMap;
+using i::CpuProfilesCollection;
 using i::ProfileNode;
 using i::ProfileTree;
-using i::StaticNameCodeEntry;
+using i::ProfileGenerator;
+using i::TickSample;
 using i::Vector;
 
 
 TEST(ProfileNodeFindOrAddChild) {
   ProfileNode node(NULL);
-  StaticNameCodeEntry entry1(i::Logger::FUNCTION_TAG, "aaa");
+  CodeEntry entry1(i::Logger::FUNCTION_TAG, "aaa", "", 0);
   ProfileNode* childNode1 = node.FindOrAddChild(&entry1);
   CHECK_NE(NULL, childNode1);
   CHECK_EQ(childNode1, node.FindOrAddChild(&entry1));
-  StaticNameCodeEntry entry2(i::Logger::FUNCTION_TAG, "bbb");
+  CodeEntry entry2(i::Logger::FUNCTION_TAG, "bbb", "", 0);
   ProfileNode* childNode2 = node.FindOrAddChild(&entry2);
   CHECK_NE(NULL, childNode2);
   CHECK_NE(childNode1, childNode2);
   CHECK_EQ(childNode1, node.FindOrAddChild(&entry1));
   CHECK_EQ(childNode2, node.FindOrAddChild(&entry2));
-  StaticNameCodeEntry entry3(i::Logger::FUNCTION_TAG, "ccc");
+  CodeEntry entry3(i::Logger::FUNCTION_TAG, "ccc", "", 0);
   ProfileNode* childNode3 = node.FindOrAddChild(&entry3);
   CHECK_NE(NULL, 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));
 }
 
 
@@ skipping 20 matching lines @@
     return node;
   }
 
  private:
   ProfileTree* tree_;
 };
 
 }  // namespace
 
 TEST(ProfileTreeAddPathFromStart) {
-  StaticNameCodeEntry entry1(i::Logger::FUNCTION_TAG, "aaa");
-  StaticNameCodeEntry entry2(i::Logger::FUNCTION_TAG, "bbb");
-  StaticNameCodeEntry entry3(i::Logger::FUNCTION_TAG, "ccc");
+  CodeEntry entry1(i::Logger::FUNCTION_TAG, "aaa", "", 0);
+  CodeEntry entry2(i::Logger::FUNCTION_TAG, "bbb", "", 0);
+  CodeEntry entry3(i::Logger::FUNCTION_TAG, "ccc", "", 0);
   ProfileTree tree;
   ProfileTreeTestHelper helper(&tree);
   CHECK_EQ(NULL, helper.Walk(&entry1));
   CHECK_EQ(NULL, helper.Walk(&entry2));
   CHECK_EQ(NULL, helper.Walk(&entry3));
 
   CodeEntry* path[] = {NULL, &entry1, NULL, &entry2, NULL, NULL, &entry3, NULL};
   Vector<CodeEntry*> path_vec(path, sizeof(path) / sizeof(path[0]));
   tree.AddPathFromStart(path_vec);
   CHECK_EQ(NULL, helper.Walk(&entry2));
@@ skipping 44 matching lines @@
   CHECK_EQ(2, node3->self_ticks());
   ProfileNode* node4 = helper.Walk(&entry1, &entry2, &entry2);
   CHECK_NE(NULL, node4);
   CHECK_NE(node3, node4);
   CHECK_EQ(0, node4->total_ticks());
   CHECK_EQ(1, node4->self_ticks());
 }
 
 
 TEST(ProfileTreeAddPathFromEnd) {
-  StaticNameCodeEntry entry1(i::Logger::FUNCTION_TAG, "aaa");
-  StaticNameCodeEntry entry2(i::Logger::FUNCTION_TAG, "bbb");
-  StaticNameCodeEntry entry3(i::Logger::FUNCTION_TAG, "ccc");
+  CodeEntry entry1(i::Logger::FUNCTION_TAG, "aaa", "", 0);
+  CodeEntry entry2(i::Logger::FUNCTION_TAG, "bbb", "", 0);
+  CodeEntry entry3(i::Logger::FUNCTION_TAG, "ccc", "", 0);
   ProfileTree tree;
   ProfileTreeTestHelper helper(&tree);
   CHECK_EQ(NULL, helper.Walk(&entry1));
   CHECK_EQ(NULL, helper.Walk(&entry2));
   CHECK_EQ(NULL, 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_EQ(NULL, helper.Walk(&entry2));
@@ skipping 57 matching lines @@
   empty_tree.CalculateTotalTicks();
   CHECK_EQ(0, empty_tree.root()->total_ticks());
   CHECK_EQ(0, empty_tree.root()->self_ticks());
   empty_tree.root()->IncrementSelfTicks();
   CHECK_EQ(0, empty_tree.root()->total_ticks());
   CHECK_EQ(1, empty_tree.root()->self_ticks());
   empty_tree.CalculateTotalTicks();
   CHECK_EQ(1, empty_tree.root()->total_ticks());
   CHECK_EQ(1, empty_tree.root()->self_ticks());
 
-  StaticNameCodeEntry entry1(i::Logger::FUNCTION_TAG, "aaa");
-  StaticNameCodeEntry entry2(i::Logger::FUNCTION_TAG, "bbb");
+  CodeEntry entry1(i::Logger::FUNCTION_TAG, "aaa", "", 0);
+  CodeEntry entry2(i::Logger::FUNCTION_TAG, "bbb", "", 0);
   CodeEntry* e1_path[] = {&entry1};
   Vector<CodeEntry*> e1_path_vec(
       e1_path, sizeof(e1_path) / sizeof(e1_path[0]));
   CodeEntry* e1_e2_path[] = {&entry1, &entry2};
   Vector<CodeEntry*> e1_e2_path_vec(
       e1_e2_path, sizeof(e1_e2_path) / sizeof(e1_e2_path[0]));
 
   ProfileTree flat_tree;
   ProfileTreeTestHelper flat_helper(&flat_tree);
   flat_tree.AddPathFromStart(e1_path_vec);
@@ skipping 17 matching lines @@
   CHECK_EQ(5, flat_tree.root()->total_ticks());
   CHECK_EQ(0, flat_tree.root()->self_ticks());
   CHECK_EQ(5, node1->total_ticks());
   CHECK_EQ(2, node1->self_ticks());
   CHECK_EQ(3, node2->total_ticks());
   CHECK_EQ(3, node2->self_ticks());
 
   CodeEntry* e2_path[] = {&entry2};
   Vector<CodeEntry*> e2_path_vec(
       e2_path, sizeof(e2_path) / sizeof(e2_path[0]));
-  StaticNameCodeEntry entry3(i::Logger::FUNCTION_TAG, "ccc");
+  CodeEntry entry3(i::Logger::FUNCTION_TAG, "ccc", "", 0);
   CodeEntry* e3_path[] = {&entry3};
   Vector<CodeEntry*> e3_path_vec(
       e3_path, sizeof(e3_path) / sizeof(e3_path[0]));
 
   ProfileTree wide_tree;
   ProfileTreeTestHelper wide_helper(&wide_tree);
   wide_tree.AddPathFromStart(e1_path_vec);
   wide_tree.AddPathFromStart(e1_path_vec);
   wide_tree.AddPathFromStart(e1_e2_path_vec);
   wide_tree.AddPathFromStart(e2_path_vec);
@@ skipping 40 matching lines @@
   CHECK_EQ(4, node3->self_ticks());
 }
 
 
 static inline i::Address ToAddress(int n) {
   return reinterpret_cast<i::Address>(n);
 }
 
 TEST(CodeMapAddCode) {
   CodeMap code_map;
-  StaticNameCodeEntry entry1(i::Logger::FUNCTION_TAG, "aaa");
-  StaticNameCodeEntry entry2(i::Logger::FUNCTION_TAG, "bbb");
-  StaticNameCodeEntry entry3(i::Logger::FUNCTION_TAG, "ccc");
-  StaticNameCodeEntry entry4(i::Logger::FUNCTION_TAG, "ddd");
+  CodeEntry entry1(i::Logger::FUNCTION_TAG, "aaa", "", 0);
+  CodeEntry entry2(i::Logger::FUNCTION_TAG, "bbb", "", 0);
+  CodeEntry entry3(i::Logger::FUNCTION_TAG, "ccc", "", 0);
+  CodeEntry entry4(i::Logger::FUNCTION_TAG, "ddd", "", 0);
   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_EQ(NULL, code_map.FindEntry(0));
   CHECK_EQ(NULL, 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_EQ(NULL, code_map.FindEntry(ToAddress(0x1700 + 0x100)));
   CHECK_EQ(NULL, 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_EQ(NULL, code_map.FindEntry(ToAddress(0x1950 + 0x10)));
   CHECK_EQ(NULL, code_map.FindEntry(ToAddress(0xFFFFFFFF)));
 }
 
 
 TEST(CodeMapMoveAndDeleteCode) {
   CodeMap code_map;
-  StaticNameCodeEntry entry1(i::Logger::FUNCTION_TAG, "aaa");
-  StaticNameCodeEntry entry2(i::Logger::FUNCTION_TAG, "bbb");
+  CodeEntry entry1(i::Logger::FUNCTION_TAG, "aaa", "", 0);
+  CodeEntry entry2(i::Logger::FUNCTION_TAG, "bbb", "", 0);
   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(0x1800));
   CHECK_EQ(NULL, code_map.FindEntry(ToAddress(0x1500)));
   CHECK_EQ(&entry2, code_map.FindEntry(ToAddress(0x1700)));
   CHECK_EQ(&entry1, code_map.FindEntry(ToAddress(0x1800)));
   code_map.DeleteCode(ToAddress(0x1700));
   CHECK_EQ(NULL, code_map.FindEntry(ToAddress(0x1700)));
   CHECK_EQ(&entry1, code_map.FindEntry(ToAddress(0x1800)));
 }
+
+
+TEST(RecordTickSample) {
+  CpuProfilesCollection profiles;
+  profiles.AddProfile(0);
+  ProfileGenerator generator(&profiles);
+  CodeEntry* entry1 = generator.NewCodeEntry(i::Logger::FUNCTION_TAG, "aaa");
+  CodeEntry* entry2 = generator.NewCodeEntry(i::Logger::FUNCTION_TAG, "bbb");
+  CodeEntry* entry3 = generator.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);
+
+  ProfileTreeTestHelper top_down_test_helper(profiles.profile()->top_down());
+  CHECK_EQ(NULL, top_down_test_helper.Walk(entry1));
+  CHECK_EQ(NULL, top_down_test_helper.Walk(entry2));
+  CHECK_EQ(NULL, top_down_test_helper.Walk(entry3));
+
+  // We are building the following calls tree:
+  //      -> aaa         - sample1
+  //  aaa -> bbb -> ccc  - sample2
+  //      -> ccc -> aaa  - sample3
+  TickSample sample1;
+  sample1.pc = ToAddress(0x1600);
+  sample1.function = ToAddress(0x1500);
+  sample1.stack[0] = ToAddress(0x1510);
+  sample1.frames_count = 1;
+  generator.RecordTickSample(sample1);
+  TickSample sample2;
+  sample2.pc = ToAddress(0x1925);
+  sample2.function = 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.function = ToAddress(0x1500);
+  sample3.stack[0] = ToAddress(0x1910);
+  sample3.stack[1] = ToAddress(0x1610);
+  sample3.frames_count = 2;
+  generator.RecordTickSample(sample3);
+
+  ProfileNode* node1 = top_down_test_helper.Walk(entry1);
+  CHECK_NE(NULL, node1);
+  CHECK_EQ(entry1, node1->entry());
+  ProfileNode* node2 = top_down_test_helper.Walk(entry1, entry1);
+  CHECK_NE(NULL, node2);
+  CHECK_EQ(entry1, node2->entry());
+  // ProfileNode* node3 = top_down_test_helper.Walk(entry1, entry2, entry3);
+  // CHECK_NE(NULL, node3);
+  // CHECK_EQ(entry2, node3->entry());
+  ProfileNode* node4 = top_down_test_helper.Walk(entry1, entry3, entry1);
+  CHECK_NE(NULL, node4);
+  CHECK_EQ(entry1, node4->entry());
+}