archdep.h revision 1.7 
1/*	$OpenBSD: archdep.h,v 1.7 2017/01/09 22:51:04 kettenis Exp $ */
2
3/*
4 * Copyright (c) 1998 Per Fogelstrom, Opsycon AB
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
16 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
19 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 */
28
29#ifndef _SH_ARCHDEP_H_
30#define _SH_ARCHDEP_H_
31
32#define	RELOC_TAG	DT_RELA
33
34#define	DL_MALLOC_ALIGN	4	/* Arch constraint or otherwise */
35
36#define	MACHID	EM_SH	/* ELF e_machine ID value checked */
37
38#define	RELTYPE	Elf32_Rela
39#define	RELSIZE	sizeof(Elf32_Rela)
40
41#include <elf_abi.h>
42#include <machine/reloc.h>
43#include "syscall.h"
44#include "util.h"
45
46/*
47 *	The following functions are declared inline so they can
48 *	be used before bootstrap linking has been finished.
49 */
50
51static inline void *
52_dl_mmap(void *addr, size_t len, int prot, int flags, int fd, off_t offset)
53{
54	return((void *)(long)_dl__syscall((quad_t)SYS_mmap, addr, len, prot,
55	    flags, fd, 0, offset));
56}
57
58static inline void
59RELOC_DYN(Elf32_Rela *r, const Elf32_Sym *s, Elf32_Addr *p, unsigned long v)
60{
61	if (ELF_R_TYPE(r->r_info) == R_SH_RELATIVE) {
62		*p = v + r->r_addend;
63	} else if (ELF_R_TYPE(r->r_info) == R_SH_DIR32) {
64		*p = s->st_value + v + r->r_addend;
65	} else {
66		/* XXX - printf might not work here, but we give it a shot. */
67		_dl_printf("Unknown bootstrap relocation.\n");
68		_dl_exit(6);
69	}
70}
71
72#define RELOC_GOT(obj, offs)
73
74#endif /* _SH_ARCHDEP_H_ */
75