components/tracing/tracing_export.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef COMPONENTS_TRACING_TRACING_EXPORT_H_
   6 #define COMPONENTS_TRACING_TRACING_EXPORT_H_
   7
   8 #if defined(COMPONENT_BUILD)
   9 #if defined(WIN32)
  10
  11 #if defined(TRACING_IMPLEMENTATION)
  12 #define TRACING_EXPORT __declspec(dllexport)
  13 #else
  14 #define TRACING_EXPORT __declspec(dllimport)
  15 #endif  // defined(TRACING_IMPLEMENTATION)
  16
  17 #else  // defined(WIN32)
  18 #if defined(TRACING_IMPLEMENTATION)
  19 #define TRACING_EXPORT __attribute__((visibility("default")))
  20 #else
  21 #define TRACING_EXPORT
  22 #endif // defined(TRACING_IMPLEMENTATION)
  23 #endif
  24
  25 #else  // defined(COMPONENT_BUILD)
  26 #define TRACING_EXPORT
  27 #endif
  28
  29 #endif  // COMPONENTS_TRACING_TRACING_EXPORT_H_