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      1 /*	$NetBSD: unwind_arm_ehabi_stub.c,v 1.3 2023/08/23 12:24:59 rin Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2013 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef __ARM_DWARF_EH__
     30 #include <sys/cdefs.h>
     31 #include <sys/types.h>
     32 #include "unwind.h"
     33 
     34 void _Unwind_VRS_Get(struct _Unwind_Context *, int, _Unwind_Word, int, void *);
     35 void _Unwind_VRS_Set(struct _Unwind_Context *, int, _Unwind_Word, int, void *);
     36 
     37 _Unwind_Word
     38 _Unwind_GetGR(struct _Unwind_Context *context, int regno)
     39 {
     40 	_Unwind_Word val;
     41 	_Unwind_VRS_Get(context, 0 /*_UVRSC_CORE*/, regno, 0 /*_UVRSD_UINT32*/,
     42 	    &val);
     43 
     44 	return val;
     45 }
     46 
     47 _Unwind_Ptr
     48 _Unwind_GetIP(struct _Unwind_Context *context)
     49 {
     50 	return (_Unwind_Ptr)(_Unwind_GetGR (context, 15) & ~(_Unwind_Word)1);
     51 }
     52 
     53 _Unwind_Ptr
     54 _Unwind_GetIPInfo(struct _Unwind_Context *context, int *p)
     55 {
     56 	*p = 0;
     57 	return _Unwind_GetIP(context);
     58 }
     59 
     60 void
     61 _Unwind_SetGR(struct _Unwind_Context *context, int reg, _Unwind_Ptr val)
     62 {
     63 	_Unwind_VRS_Set(context, 0 /*_UVRSC_CORE*/, reg, 0 /*_UVRSD_UINT32*/,
     64 		&val);
     65 }
     66 
     67 #endif /* __ARM_DWARF_EH__ */
     68