2 This file is provided under a dual BSD/GPLv2 license. When using or
3 redistributing this file, you may do so under either license.
7 Copyright(c) 2005-2012 Intel Corporation. All rights reserved.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of version 2 of the GNU General Public License as
11 published by the Free Software Foundation.
13 This program is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
21 The full GNU General Public License is included in this distribution
22 in the file called LICENSE.GPL.
25 http://software.intel.com/en-us/articles/intel-vtune-amplifier-xe/
29 Copyright(c) 2005-2012 Intel Corporation. All rights reserved.
32 Redistribution and use in source and binary forms, with or without
33 modification, are permitted provided that the following conditions
36 * Redistributions of source code must retain the above copyright
37 notice, this list of conditions and the following disclaimer.
38 * Redistributions in binary form must reproduce the above copyright
39 notice, this list of conditions and the following disclaimer in
40 the documentation and/or other materials provided with the
42 * Neither the name of Intel Corporation nor the names of its
43 contributors may be used to endorse or promote products derived
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46 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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48 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
49 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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52 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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54 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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56 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
64 // To avoid GCC 4.4 compilation warning about hash_map being deprecated.
65 #define OLD_DEPRECATED __DEPRECATED
71 #include <ext/hash_map>
72 using namespace __gnu_cxx;
74 #define __DEPRECATED OLD_DEPRECATED
80 #include "vtune-jit.h"
86 // This class is used to record the JITted code position info for JIT
88 class JITCodeLineInfo {
92 void SetPosition(intptr_t pc, int pos) {
93 AddCodeLineInfo(LineNumInfo(pc, pos));
97 LineNumInfo(intptr_t pc, int pos)
98 : pc_(pc), pos_(pos) { }
104 std::list<LineNumInfo>* GetLineNumInfo() {
105 return &line_num_info_;
109 void AddCodeLineInfo(const LineNumInfo& line_info) {
110 line_num_info_.push_back(line_info);
112 std::list<LineNumInfo> line_num_info_;
115 struct SameCodeObjects {
116 bool operator () (void* key1, void* key2) const {
121 struct HashForCodeObject {
122 uint32_t operator () (void* code) const {
123 static const uintptr_t kGoldenRatio = 2654435761u;
124 uintptr_t hash = reinterpret_cast<uintptr_t>(code);
125 return static_cast<uint32_t>(hash * kGoldenRatio);
130 typedef hash_map<void*, void*> JitInfoMap;
132 typedef hash_map<void*, void*, HashForCodeObject, SameCodeObjects> JitInfoMap;
135 static JitInfoMap* GetEntries() {
136 static JitInfoMap* entries;
137 if (entries == NULL) {
138 entries = new JitInfoMap();
143 static bool IsLineInfoTagged(void* ptr) {
144 return 0 != (reinterpret_cast<intptr_t>(ptr));
147 static JITCodeLineInfo* UntagLineInfo(void* ptr) {
148 return reinterpret_cast<JITCodeLineInfo*>(
149 reinterpret_cast<intptr_t>(ptr));
152 // The parameter str is a mixed pattern which contains the
153 // function name and some other info. It comes from all the
154 // Logger::CodeCreateEvent(...) function. This funtion get the
155 // pure function name from the input parameter.
156 static char* GetFunctionNameFromMixedName(const char* str, int length) {
159 char* start_ptr = NULL;
161 while (str[index++] != ':' && (index < length)) {}
163 if (str[index] == '*' || str[index] == '~' ) index++;
164 if (index >= length) return NULL;
166 start_ptr = const_cast<char*>(str + index);
168 while (index < length && str[index++] != ' ') {
172 char* result = new char[count + 1];
173 memcpy(result, start_ptr, count);
174 result[count] = '\0';
179 // The JitCodeEventHandler for Vtune.
180 void VTUNEJITInterface::event_handler(const v8::JitCodeEvent* event) {
181 if (VTUNERUNNING && event != NULL) {
182 switch (event->type) {
183 case v8::JitCodeEvent::CODE_ADDED: {
184 char* temp_file_name = NULL;
185 char* temp_method_name =
186 GetFunctionNameFromMixedName(event->name.str,
187 static_cast<int>(event->name.len));
188 iJIT_Method_Load jmethod;
189 memset(&jmethod, 0, sizeof jmethod);
190 jmethod.method_id = iJIT_GetNewMethodID();
191 jmethod.method_load_address = event->code_start;
192 jmethod.method_size = static_cast<unsigned int>(event->code_len);
193 jmethod.method_name = temp_method_name;
195 Handle<UnboundScript> script = event->script;
197 if (*script != NULL) {
198 // Get the source file name and set it to jmethod.source_file_name
199 if ((*script->GetScriptName())->IsString()) {
200 Handle<String> script_name = script->GetScriptName()->ToString();
201 temp_file_name = new char[script_name->Utf8Length() + 1];
202 script_name->WriteUtf8(temp_file_name);
203 jmethod.source_file_name = temp_file_name;
206 JitInfoMap::iterator entry =
207 GetEntries()->find(event->code_start);
208 if (entry != GetEntries()->end() && IsLineInfoTagged(entry->first)) {
209 JITCodeLineInfo* line_info = UntagLineInfo(entry->second);
210 // Get the line_num_info and set it to jmethod.line_number_table
211 std::list<JITCodeLineInfo::LineNumInfo>* vtunelineinfo =
212 line_info->GetLineNumInfo();
214 jmethod.line_number_size = (unsigned int)vtunelineinfo->size();
215 jmethod.line_number_table =
216 reinterpret_cast<LineNumberInfo*>(
217 malloc(sizeof(LineNumberInfo)*jmethod.line_number_size));
219 std::list<JITCodeLineInfo::LineNumInfo>::iterator Iter;
221 for (Iter = vtunelineinfo->begin();
222 Iter != vtunelineinfo->end();
224 jmethod.line_number_table[index].Offset =
225 static_cast<unsigned int>(Iter->pc_);
226 jmethod.line_number_table[index++].LineNumber =
227 script->GetLineNumber(Iter->pos_) + 1;
229 GetEntries()->erase(event->code_start);
233 iJIT_NotifyEvent(iJVM_EVENT_TYPE_METHOD_LOAD_FINISHED,
234 reinterpret_cast<void*>(&jmethod));
235 if (temp_method_name)
236 delete []temp_method_name;
238 delete []temp_file_name;
241 // TODO(chunyang.dai@intel.com): code_move will be supported.
242 case v8::JitCodeEvent::CODE_MOVED:
244 // Currently the CODE_REMOVED event is not issued.
245 case v8::JitCodeEvent::CODE_REMOVED:
247 case v8::JitCodeEvent::CODE_ADD_LINE_POS_INFO: {
248 JITCodeLineInfo* line_info =
249 reinterpret_cast<JITCodeLineInfo*>(event->user_data);
250 if (line_info != NULL) {
251 line_info->SetPosition(static_cast<intptr_t>(event->line_info.offset),
252 static_cast<int>(event->line_info.pos));
256 case v8::JitCodeEvent::CODE_START_LINE_INFO_RECORDING: {
257 v8::JitCodeEvent* temp_event = const_cast<v8::JitCodeEvent*>(event);
258 temp_event->user_data = new JITCodeLineInfo();
261 case v8::JitCodeEvent::CODE_END_LINE_INFO_RECORDING: {
262 GetEntries()->insert(std::pair <void*, void*>(event->code_start, event->user_data));
272 } // namespace internal
274 void InitializeVtuneForV8(v8::Isolate::CreateParams& params) {
275 v8::V8::SetFlagsFromString("--nocompact_code_space",
276 (int)strlen("--nocompact_code_space"));
277 params.code_event_handler = vTune::internal::VTUNEJITInterface::event_handler;