ef_sparc64.c revision 153504 
118099Spst/*-
251178Sache * Copyright (c) 2003 Jake Burkholder.
3104868Sru * All rights reserved.
418099Spst *
518099Spst * Redistribution and use in source and binary forms, with or without
6104868Sru * modification, are permitted provided that the following conditions
7151503Sru * are met:
8151503Sru * 1. Redistributions of source code must retain the above copyright
9151503Sru *    notice, this list of conditions and the following disclaimer.
1018099Spst * 2. Redistributions in binary form must reproduce the above copyright
1118099Spst *    notice, this list of conditions and the following disclaimer in the
1275590Sru *    documentation and/or other materials provided with the distribution.
1375590Sru *
1475590Sru * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
1575590Sru * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1675590Sru * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1775590Sru * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
1875590Sru * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1975590Sru * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2075590Sru * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2175590Sru * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2275590Sru * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2375590Sru * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2475590Sru * SUCH DAMAGE.
2575590Sru *
26114410Sru * $FreeBSD: head/usr.sbin/kldxref/ef_sparc64.c 153504 2005-12-18 04:52:37Z marcel $
2718099Spst */
2818099Spst
2918099Spst#include <sys/types.h>
3069631Sru#include <machine/elf.h>
31104868Sru
32104868Sru#include <err.h>
33104868Sru#include <string.h>
34119887Sru
35119887Sru#include "ef.h"
36119887Sru
37119887Sru/*
38104868Sru * Apply relocations to the values we got from the file. `relbase' is the
39104868Sru * target relocation address of the section, and `dataoff' is the target
40104868Sru * relocation address of the data in `dest'.
4169631Sru */
4218099Spstint
43104868Sruef_reloc(struct elf_file *ef, const void *reldata, int reltype, Elf_Off relbase,
44114410Sru    Elf_Off dataoff, size_t len, void *dest)
4518099Spst{
46114410Sru	const Elf_Rela *a;
47119887Sru	Elf_Size w;
48119887Sru
49104868Sru	switch (reltype) {
50114410Sru	case EF_RELOC_RELA:
51114410Sru		a = reldata;
52114410Sru		if (relbase + a->r_offset >= dataoff && relbase + a->r_offset <
5318099Spst		    dataoff + len) {
54			switch (ELF_R_TYPE(a->r_info)) {
55			case R_SPARC_RELATIVE:
56				w = a->r_addend + relbase;
57				memcpy((u_char *)dest + (relbase + a->r_offset -
58				    dataoff), &w, sizeof(w));
59				break;
60			default:
61				warnx("unhandled relocation type %u",
62				    (unsigned int)ELF_R_TYPE(a->r_info));
63				break;
64			}
65		}
66		break;
67	}
68	return (0);
69}
70