text: /*
   * Copyright (c) 1999-2017 Apple Computer, Inc. All rights reserved.
   *
   * @APPLE_LICENSE_HEADER_START@
   * 
   * This file contains Original Code and/or Modifications of Original Code
   * as defined in and that are subject to the Apple Public Source License
   * Version 2.0 (the 'License'). You may not use this file except in
   * compliance with the License. Please obtain a copy of the License at
   * http://www.opensource.apple.com/apsl/ and read it before using this
   * file.
   * 
   * The Original Code and all software distributed under the License are
   * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
   * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
   * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
   * Please see the License for the specific language governing rights and
   * limitations under the License.
   * 
   * @APPLE_LICENSE_HEADER_END@
   */
  
  #include <CrashReporterClient.h>
  #include <stdlib.h>
  #include <stdio.h>
  #include <unistd.h>
  #include <signal.h>
  #include <sys/signal.h>
  #include <errno.h>
  
  #pragma clang diagnostic push
  #pragma clang diagnostic ignored "-Wstrict-prototypes"
  
  extern int __platform_sigaction (int sig,
  		const struct sigaction * __restrict nsv,
  		struct sigaction * __restrict osv);
  
  int
  sigaction (int sig, const struct sigaction * __restrict nsv,
  		struct sigaction * __restrict osv)
  {
  	int ret = __platform_sigaction(sig, nsv, osv);
  #ifdef FEATURE_SIGNAL_RESTRICTION
  	// Note: The "sig != 0" here is to force the compiler to maintain that "sig"
  	// is live, and in a register, after __sigaction so it is visible in the
  	// crashing register state.
  	if (ret == -1 && errno == ENOTSUP && sig != 0) {
  		CRSetCrashLogMessage("sigaction on fatal signals is not supported");
  		__builtin_trap();
  	}
  #endif
  	return ret;
  }
  
  // XXX
  #ifdef __DYNAMIC__
  
  int
  _sigaction_nobind (sig, nsv, osv)
          int sig;
  	register const struct sigaction *nsv;
          register struct sigaction *osv;
  {
      return sigaction(sig, nsv, osv);
  }
  #endif
  
  #pragma clang diagnostic pop
  