archdep.h revision 1.3 
1/*	$OpenBSD: archdep.h,v 1.3 2021/11/14 22:07:39 guenther Exp $ */
2
3/*
4 * Copyright (c) 2021 Dale Rahn <drahn@openbsd.org>
5 * Copyright (c) 1998 Per Fogelstrom, Opsycon AB
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 AUTHOR ``AS IS'' AND ANY EXPRESS
17 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 */
29
30#ifndef _AARCH64_ARCHDEP_H_
31#define _AARCH64_ARCHDEP_H_
32
33#define	RELOC_TAG	DT_RELA
34#define	MACHID		EM_RISCV	/* ELF e_machine ID value checked */
35
36#include <elf.h>
37#include <machine/reloc.h>
38#include "syscall.h"
39#include "util.h"
40
41
42/* Only used in lib/csu/boot.h */
43static inline void
44RELOC_DYN(Elf_RelA *r, const Elf_Sym *s, Elf_Addr *p, unsigned long v)
45{
46	if (ELF_R_TYPE(r->r_info) == R_RISCV_RELATIVE) {
47		*p = v + r->r_addend;
48	} else if (ELF_R_TYPE(r->r_info) == R_RISCV_64) {
49		*p = v + s->st_value + r->r_addend;
50	} else {
51		_dl_exit(6);
52	}
53}
54
55#endif /* _AARCH64_ARCHDEP_H_ */
56