1// Copyright 2010 the V8 project authors. All rights reserved.
2// Redistribution and use in source and binary forms, with or without
3// modification, are permitted provided that the following conditions are
4// met:
5//
6//     * Redistributions of source code must retain the above copyright
7//       notice, this list of conditions and the following disclaimer.
8//     * Redistributions in binary form must reproduce the above
9//       copyright notice, this list of conditions and the following
10//       disclaimer in the documentation and/or other materials provided
11//       with the distribution.
12//     * Neither the name of Google Inc. nor the names of its
13//       contributors may be used to endorse or promote products derived
14//       from this software without specific prior written permission.
15//
16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28#ifndef V8_PROFILE_GENERATOR_INL_H_
29#define V8_PROFILE_GENERATOR_INL_H_
30
31#include "profile-generator.h"
32
33namespace v8 {
34namespace internal {
35
36const char* StringsStorage::GetFunctionName(String* name) {
37  return GetFunctionName(GetName(name));
38}
39
40
41const char* StringsStorage::GetFunctionName(const char* name) {
42  return strlen(name) > 0 ? name : ProfileGenerator::kAnonymousFunctionName;
43}
44
45
46CodeEntry::CodeEntry(Logger::LogEventsAndTags tag,
47                     const char* name_prefix,
48                     const char* name,
49                     const char* resource_name,
50                     int line_number,
51                     int security_token_id)
52    : tag_(tag),
53      name_prefix_(name_prefix),
54      name_(name),
55      resource_name_(resource_name),
56      line_number_(line_number),
57      shared_id_(0),
58      security_token_id_(security_token_id) {
59}
60
61
62bool CodeEntry::is_js_function_tag(Logger::LogEventsAndTags tag) {
63  return tag == Logger::FUNCTION_TAG
64      || tag == Logger::LAZY_COMPILE_TAG
65      || tag == Logger::SCRIPT_TAG
66      || tag == Logger::NATIVE_FUNCTION_TAG
67      || tag == Logger::NATIVE_LAZY_COMPILE_TAG
68      || tag == Logger::NATIVE_SCRIPT_TAG;
69}
70
71
72ProfileNode::ProfileNode(ProfileTree* tree, CodeEntry* entry)
73    : tree_(tree),
74      entry_(entry),
75      total_ticks_(0),
76      self_ticks_(0),
77      children_(CodeEntriesMatch) {
78}
79
80
81CodeEntry* ProfileGenerator::EntryForVMState(StateTag tag) {
82  switch (tag) {
83    case GC:
84      return gc_entry_;
85    case JS:
86    case COMPILER:
87    // DOM events handlers are reported as OTHER / EXTERNAL entries.
88    // To avoid confusing people, let's put all these entries into
89    // one bucket.
90    case OTHER:
91    case EXTERNAL:
92      return program_entry_;
93    default: return NULL;
94  }
95}
96
97
98SnapshotObjectId HeapObjectsMap::GetNthGcSubrootId(int delta) {
99  return kGcRootsFirstSubrootId + delta * kObjectIdStep;
100}
101
102
103HeapObject* V8HeapExplorer::GetNthGcSubrootObject(int delta) {
104  return reinterpret_cast<HeapObject*>(
105      reinterpret_cast<char*>(kFirstGcSubrootObject) +
106      delta * HeapObjectsMap::kObjectIdStep);
107}
108
109
110int V8HeapExplorer::GetGcSubrootOrder(HeapObject* subroot) {
111  return static_cast<int>(
112      (reinterpret_cast<char*>(subroot) -
113       reinterpret_cast<char*>(kFirstGcSubrootObject)) /
114      HeapObjectsMap::kObjectIdStep);
115}
116
117} }  // namespace v8::internal
118
119#endif  // V8_PROFILE_GENERATOR_INL_H_
120