1 // Copyright 2006-2009 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_OPROFILE_AGENT_H_ 29 #define V8_OPROFILE_AGENT_H_ 30 31 #include <stdlib.h> 32 33 #include "globals.h" 34 35 #ifdef ENABLE_OPROFILE_AGENT 36 // opagent.h uses uint64_t type, which can be missing in 37 // system headers (they have __uint64_t), but is defined 38 // in V8's headers. 39 #include <opagent.h> // NOLINT 40 #endif 41 42 namespace v8 { 43 namespace internal { 44 45 class OProfileAgent { 46 public: 47 static bool Initialize(); 48 static void TearDown(); 49 static void CreateNativeCodeRegion(const char* name, 50 const void* ptr, unsigned int size); 51 static void CreateNativeCodeRegion(String* name, 52 const void* ptr, unsigned int size); 53 static void CreateNativeCodeRegion(String* name, String* source, int line_num, 54 const void* ptr, unsigned int size); 55 #ifdef ENABLE_OPROFILE_AGENT is_enabled()56 static bool is_enabled() { return handle_ != NULL; } 57 58 private: 59 static op_agent_t handle_; 60 61 // Size of the buffer that is used for composing code areas names. 62 static const int kFormattingBufSize = 256; 63 #else is_enabled()64 static bool is_enabled() { return false; } 65 #endif 66 }; 67 } } 68 69 #endif // V8_OPROFILE_AGENT_H_ 70