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
42namespace v8 {
43namespace internal {
44
45class 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
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
64  static bool is_enabled() { return false; }
65#endif
66};
67} }
68
69#endif  // V8_OPROFILE_AGENT_H_
70