freebsd-dev/stand/mips/beri/loader/arch.c

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/*-
* Copyright (c) 2013 Robert N. M. Watson
* All rights reserved.
*
* This software was developed by SRI International and the University of
* Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
* ("CTSRD"), as part of the DARPA CRASH research programme.
*
* 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 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 AUTHOR 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <machine/elf.h>
#include <stand.h>
#include <bootstrap.h>
#include <loader.h>
#include <mips.h>
static int beri_arch_autoload(void);
static ssize_t beri_arch_copyin(const void *src, vm_offset_t va, size_t len);
static ssize_t beri_arch_copyout(vm_offset_t va, void *dst, size_t len);
static uint64_t beri_arch_loadaddr(u_int type, void *data, uint64_t addr);
static ssize_t beri_arch_readin(int fd, vm_offset_t va, size_t len);
struct arch_switch archsw = {
.arch_autoload = beri_arch_autoload,
.arch_getdev = beri_arch_getdev,
.arch_copyin = beri_arch_copyin,
.arch_copyout = beri_arch_copyout,
.arch_loadaddr = beri_arch_loadaddr,
.arch_readin = beri_arch_readin,
};
static int
beri_arch_autoload(void)
{
return (0);
}
static ssize_t
beri_arch_copyin(const void *src, vm_offset_t va, size_t len)
{
memcpy((void *)va, src, len);
return (len);
}
static ssize_t
beri_arch_copyout(vm_offset_t va, void *dst, size_t len)
{
memcpy(dst, (void *)va, len);
return (len);
}
static uint64_t
beri_arch_loadaddr(u_int type, void *data, uint64_t addr)
{
uint64_t align;
/* Align ELF objects at page boundaries; others at cache lines. */
align = (type == LOAD_ELF) ? PAGE_SIZE : CACHE_LINE_SIZE;
return (roundup2(addr, align));
}
static ssize_t
beri_arch_readin(int fd, vm_offset_t va, size_t len)
{
return (read(fd, (void *)va, len));
}