2 * Copyright 1996-1998 John D. Polstra.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 * $Id: elf_machdep.c,v 1.2 1998/10/16 03:54:59 peter Exp $
28 #include <sys/param.h>
29 #include <sys/kernel.h>
30 #include <sys/systm.h>
31 #include <sys/malloc.h>
33 #include <sys/namei.h>
34 #include <sys/fcntl.h>
35 #include <sys/vnode.h>
36 #include <sys/linker.h>
37 #include <machine/elf.h>
39 /* Process one elf relocation with addend. */
41 elf_reloc(linker_file_t lf, const void *data, int type, const char *sym)
43 Elf_Addr relocbase = (Elf_Addr) lf->address;
45 Elf_Addr addr, tmp_value;
53 rel = (Elf_Rel *)data;
54 where = (Elf_Addr *) (relocbase + rel->r_offset);
56 rtype = ELF_R_TYPE(rel->r_info);
59 rela = (Elf_Rela *)data;
60 where = (Elf_Addr *) (relocbase + rela->r_offset);
61 addend = rela->r_addend;
62 rtype = ELF_R_TYPE(rela->r_info);
65 panic("elf_reloc: unknown relocation mode %d\n", type);
72 linker_file_lookup_symbol(lf, sym, 1);
80 case R_ALPHA_GLOB_DAT:
82 linker_file_lookup_symbol(lf, sym, 1);
89 case R_ALPHA_JMP_SLOT:
90 /* No point in lazy binding for kernel modules. */
92 linker_file_lookup_symbol(lf, sym, 1);
99 case R_ALPHA_RELATIVE:
100 addr = relocbase + addend + *where;
107 * There shouldn't be copy relocations in kernel
110 printf("kldload: unexpected R_COPY relocation\n");
114 printf("kldload: unexpected relocation type %d\n",