src/oprofile-agent.h

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#ifndef V8_OPROFILE_AGENT_H_
#define V8_OPROFILE_AGENT_H_

#include <stdlib.h>

#include "globals.h"

#ifdef ENABLE_OPROFILE_AGENT
// opagent.h uses uint64_t type, which can be missing in
// system headers (they have __uint64_t), but is defined
// in V8's headers.
#include <opagent.h>  // NOLINT

#define OPROFILE(Call)                             \
  do {                                             \
    if (v8::internal::OProfileAgent::is_enabled()) \
      v8::internal::OProfileAgent::Call;           \
  } while (false)
#else
#define OPROFILE(Call) ((void) 0)
#endif

namespace v8 {
namespace internal {

class OProfileAgent {
 public:
  static bool Initialize();
  static void TearDown();
#ifdef ENABLE_OPROFILE_AGENT
  static void CreateNativeCodeRegion(const char* name,
                                     const void* ptr, unsigned int size);
  static void CreateNativeCodeRegion(String* name,
                                     const void* ptr, unsigned int size);
  static void CreateNativeCodeRegion(String* name, String* source, int line_num,
                                     const void* ptr, unsigned int size);
  static bool is_enabled() { return handle_ != NULL; }

 private:
  static op_agent_t handle_;

  // Size of the buffer that is used for composing code areas names.
  static const int kFormattingBufSize = 256;
#else
  static bool is_enabled() { return false; }
#endif
};
} }

#endif  // V8_OPROFILE_AGENT_H_