kc3-lang/angle/include/export.h

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• Hash : 3e9a1375
  Author :
  Date : 2025-04-30T16:03:03
  

  Fix unique object duplication warning
  
  Clang has a `unique-object-duplication` warning that warns about objects
  which are supposed to be unique (like static- or thread-local
  variables), but may be accidentally duplicated across shared libraries
  when they have hidden visibility.
  
  This CL addresses instances of that warning by:
  1. Ensuring that on non-windows systems, objects that need to be
     exported are unconditionally given "default" visibility
  2. Satisfy the compiler by marking everything as default visibility when
     building a static library, since visibility only matters for shared
     libraries
  3. Mark functions with static or thread local variables as exported.
  
  Bug: chromium:368047728
  Change-Id: Ic60265353bf2b0af2cd1fef884bfa85038e0db02
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6502093
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Commit-Queue: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  

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• include/export.h

• //
  // Copyright 2014 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  // export.h : Defines ANGLE_EXPORT, a macro for exporting functions from the DLL
  
  #ifndef LIBGLESV2_EXPORT_H_
  #define LIBGLESV2_EXPORT_H_
  
  #if !defined(ANGLE_EXPORT)
  #    if defined(_WIN32)
  #        if defined(LIBGLESV2_IMPLEMENTATION) || defined(LIBANGLE_IMPLEMENTATION) || \
              defined(LIBFEATURE_SUPPORT_IMPLEMENTATION) || defined(LIBCL_IMPLEMENTATION)
  #            define ANGLE_EXPORT __declspec(dllexport)
  #        else
  #            define ANGLE_EXPORT __declspec(dllimport)
  #        endif
  #    elif defined(__GNUC__)
  #        define ANGLE_EXPORT __attribute__((visibility("default")))
  #    else
  #        define ANGLE_EXPORT
  #    endif
  #endif  // !defined(ANGLE_EXPORT)
  
  #if !defined(ANGLE_NO_EXPORT)
  #    if defined(__GNUC__)
  #        define ANGLE_NO_EXPORT __attribute__((visibility("hidden")))
  #    else
  #        define ANGLE_NO_EXPORT
  #    endif
  #endif  // !defined(ANGLE_NO_EXPORT)
  
  #endif  // LIBGLESV2_EXPORT_H_
  

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