lib/csu/arch/earm/crtbegin.h

   1 /* $NetBSD: crtbegin.h,v 1.1 2013/06/27 21:24:39 matt Exp $ */
   2 /*-
   3  * Copyright (c) 2013 The NetBSD Foundation, Inc.
   4  * All rights reserved.
   5  *
   6  * This code is derived from software contributed to The NetBSD Foundation
   7  * by Matt Thomas of 3am Software Foundry.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  20  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  22  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28  * POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 static void __do_global_ctors_aux(void) __attribute__((__constructor__)) __used;
  32 #ifdef SHARED
  33 static void __do_global_dtors_aux(void) __attribute__((__destructor__)) __used;
  34 #endif
  35
  36 #ifndef SHARED
  37 static const void *find_exidx(void *, int *) __used;
  38
  39 static const void *
  40 find_exidx(void * pc, int * pcount)
  41 {
  42         extern __dso_hidden const char __exidx_start[];
  43         extern __dso_hidden const char __exidx_end[];
  44
  45         *pcount = (__exidx_end - __exidx_start) / 8;
  46         return __exidx_start;
  47 }
  48
  49 __weak_alias(__gnu_Uwind_find_exidx,find_exidx)
  50 #endif /* !SHARED */