lib/libexecinfo/unwind_arm_ehabi_stub.c

   1 /*-
   2  * Copyright (c) 2013 The NetBSD Foundation, Inc.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  15  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  16  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  17  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  18  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  19  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  20  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  21  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  22  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  23  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  24  * POSSIBILITY OF SUCH DAMAGE.
  25  */
  26 #include <sys/cdefs.h>
  27 #include <sys/types.h>
  28 #include "unwind.h"
  29
  30 void _Unwind_VRS_Get(struct _Unwind_Context *, int, _Unwind_Word, int, void *);
  31 void _Unwind_VRS_Set(struct _Unwind_Context *, int, _Unwind_Word, int, void *);
  32
  33 _Unwind_Word
  34 _Unwind_GetGR(struct _Unwind_Context *context, int regno)
  35 {
  36         _Unwind_Word val;
  37         _Unwind_VRS_Get(context, 0 /*_UVRSC_CORE*/, regno, 0 /*_UVRSD_UINT32*/,
  38             &val);
  39
  40         return val;
  41 }
  42
  43 _Unwind_Ptr
  44 _Unwind_GetIP(struct _Unwind_Context *context)
  45 {
  46         return (_Unwind_Ptr)(_Unwind_GetGR (context, 15) & ~(_Unwind_Word)1);
  47 }
  48
  49 _Unwind_Ptr
  50 _Unwind_GetIPInfo(struct _Unwind_Context *context, int *p)
  51 {
  52         *p = 0;
  53         return _Unwind_GetIP(context);
  54 }
  55
  56 void
  57 _Unwind_SetGR(struct _Unwind_Context *context, int reg, _Unwind_Ptr val)
  58 {
  59         _Unwind_VRS_Set(context, 0 /*_UVRSC_CORE*/, reg, 0 /*_UVRSD_UINT32*/,
  60                 &val);
  61 }