c3-lang/libbsd/src/local-link.h

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• Hash : 4feda870
  Author :
  Date : 2021-02-11T04:40:48
  

  Require a semicolon for libbsd_link_warning() macro
  
  Remove the semicolon in the macro definition to force adding one on the
  call sites, to make the code look like an actual function.
  

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• src/local-link.h

• /*
   * Copyright © 2015 Guillem Jover <guillem@hadrons.org>
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. The name of the author may not be used to endorse or promote products
   *    derived from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
   * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
   * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
   * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
   * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
   * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
   * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
   * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #ifndef LIBBSD_LOCAL_LINK_H
  #define LIBBSD_LOCAL_LINK_H
  
  #define libbsd_link_warning(symbol, msg) \
  	static const char libbsd_emit_link_warning_##symbol[] \
  		__attribute__((__used__,__section__(".gnu.warning." #symbol))) = msg
  
  #ifdef __ELF__
  #define libbsd_symver_default(alias, symbol, version) \
  	__asm__(".symver " #symbol "," #alias "@@" #version)
  
  #define libbsd_symver_variant(alias, symbol, version) \
  	__asm__(".symver " #symbol "," #alias "@" #version)
  #else
  #define libbsd_symver_default(alias, symbol, version) \
  	extern __typeof(symbol) alias __attribute__((__alias__(#symbol)))
  
  #define libbsd_symver_variant(alias, symbol, version)
  #endif
  
  #endif
  

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