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      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
     24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     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 
     33 namespace v8 {
     34 namespace internal {
     35 
     36 const char* StringsStorage::GetFunctionName(String* name) {
     37   return GetFunctionName(GetName(name));
     38 }
     39 
     40 
     41 const char* StringsStorage::GetFunctionName(const char* name) {
     42   return strlen(name) > 0 ? name : ProfileGenerator::kAnonymousFunctionName;
     43 }
     44 
     45 
     46 CodeEntry::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 
     62 bool 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 
     72 ProfileNode::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 
     81 CodeEntry* 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 
     98 SnapshotObjectId HeapObjectsMap::GetNthGcSubrootId(int delta) {
     99   return kGcRootsFirstSubrootId + delta * kObjectIdStep;
    100 }
    101 
    102 
    103 HeapObject* V8HeapExplorer::GetNthGcSubrootObject(int delta) {
    104   return reinterpret_cast<HeapObject*>(
    105       reinterpret_cast<char*>(kFirstGcSubrootObject) +
    106       delta * HeapObjectsMap::kObjectIdStep);
    107 }
    108 
    109 
    110 int 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