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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 1994-2003 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* Miscellaneous ISA-specific code.
*/
#include <sys/types.h>
#include <sys/elf.h>
#include <sys/kobj.h>
#include <sys/kobj_impl.h>
#include <sys/archsystm.h>
extern int use_iflush;
/*
* Check that an ELF header corresponds to this machine's
* instruction set architecture. Used by kobj_load_module()
* to not get confused by a misplaced driver or kernel module
* built for a different ISA.
*/
int
elf_mach_ok(Ehdr *h)
{
/*
* XX64 This should eventually be folded into a v9-isa specific file
*/
return (h->e_ident[EI_DATA] == ELFDATA2MSB &&
(h->e_machine == EM_SPARCV9));
}
/*
* return non-zero for a bad-address
*/
int
kobj_addrcheck(void *xmp, caddr_t adr)
{
struct module *mp;
mp = (struct module *)xmp;
if ((adr >= mp->text && adr < mp->text + mp->text_size) ||
(adr >= mp->data && adr < mp->data + mp->data_size))
return (0); /* ok */
if (mp->bss && adr >= (caddr_t)mp->bss &&
adr < (caddr_t)mp->bss + mp->bss_size)
return (0);
return (1);
}
/*
* Flush instruction cache after updating text
*/
void
kobj_sync_instruction_memory(caddr_t addr, size_t len)
{
caddr_t eaddr = addr + len;
if (!use_iflush)
return;
addr = (caddr_t)((uintptr_t)addr & -8l); /* sparc needs 8-byte align */
while (addr < eaddr) {
doflush(addr);
addr += 8;
}
}
/*
* Calculate memory image required for relocatable object.
*/
/* ARGSUSED3 */
int
get_progbits_size(struct module *mp, struct proginfo *tp, struct proginfo *dp,
struct proginfo *sdp)
{
struct proginfo *pp;
uint_t shn;
Shdr *shp;
/*
* loop through sections to find out how much space we need
* for text, data, (also bss that is already assigned)
*/
for (shn = 1; shn < mp->hdr.e_shnum; shn++) {
shp = (Shdr *)(mp->shdrs + shn * mp->hdr.e_shentsize);
if (!(shp->sh_flags & SHF_ALLOC))
continue;
if (shp->sh_addr != 0) {
_kobj_printf(ops,
"%s non-zero sect addr in input file\n",
mp->filename);
return (-1);
}
pp = (shp->sh_flags & SHF_WRITE)? dp : tp;
if (shp->sh_addralign > pp->align)
pp->align = shp->sh_addralign;
pp->size = ALIGN(pp->size, shp->sh_addralign);
pp->size += ALIGN(shp->sh_size, 8);
}
tp->size = ALIGN(tp->size, 8);
dp->size = ALIGN(dp->size, 8);
return (0);
}
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