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Linker bits for alpha.

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ad 2008-01-04 16:19:25 +00:00
parent 0c9bd4f953
commit 914b753523
1 changed files with 156 additions and 0 deletions
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156
sys/arch/alpha/alpha/kobj_machdep.c Normal file
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/* $NetBSD: kobj_machdep.c,v 1.1 2008/01/04 16:19:25 ad Exp $ */
/*-
* Copyright (c) 2008 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*-
* Copyright 1996-1998 John D. Polstra.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: kobj_machdep.c,v 1.1 2008/01/04 16:19:25 ad Exp $");
#define ELFSIZE ARCH_ELFSIZE
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kobj.h>
#include <sys/exec.h>
#include <sys/exec_elf.h>
int
kobj_reloc(kobj_t ko, uintptr_t relocbase, const void *data,
bool isrela, bool local)
{
Elf_Addr *where;
Elf_Addr addr;
Elf_Addr addend;
uintptr_t rtype, symidx;
const Elf_Rel *rel;
const Elf_Rela *rela;
if (isrela) {
rela = (const Elf_Rela *)data;
where = (Elf_Addr *) (relocbase + rela->r_offset);
addend = rela->r_addend;
rtype = ELF_R_TYPE(rela->r_info);
symidx = ELF_R_SYM(rela->r_info);
} else {
rel = (const Elf_Rel *)data;
where = (Elf_Addr *) (relocbase + rel->r_offset);
addend = *where;
rtype = ELF_R_TYPE(rel->r_info);
symidx = ELF_R_SYM(rel->r_info);
}
switch (rtype) {
case R_ALPHA_NONE:
break;
case R_ALPHA_REFQUAD:
addr = kobj_sym_lookup(ko, symidx);
if (addr == 0)
return -1;
addr += addend;
if (*where != addr)
*where = addr;
break;
case R_ALPHA_GLOB_DAT:
addr = kobj_sym_lookup(ko, symidx);
if (addr == 0)
return -1;
addr += addend;
if (*where != addr)
*where = addr;
break;
case R_ALPHA_JMP_SLOT:
/* No point in lazy binding for kernel modules. */
addr = kobj_sym_lookup(ko, symidx);
if (addr == 0)
return -1;
if (*where != addr)
*where = addr;
break;
case R_ALPHA_RELATIVE:
addr = relocbase + addend;
if (*where != addr)
*where = addr;
break;
case R_ALPHA_COPY:
/*
* There shouldn't be copy relocations in kernel
* objects.
*/
printf("kobj_reloc: unexpected R_COPY relocation\n");
return -1;
default:
printf("kobj_reloc: unexpected relocation type %d\n",
(int)rtype);
return -1;
}
return 0;
}
int
kobj_machdep(kobj_t ko, void *base, size_t size, bool load)
{
return 0;
}