blob: b411da491222b4d06076fd01b0e51ced7ba993ee [file] [log] [blame]
/*-
* Copyright (c) 2001 Benno Rice <benno@FreeBSD.org>
* 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 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("$FreeBSD$");
#define __ELF_WORD_SIZE 64
#include <sys/param.h>
#include <sys/linker.h>
#include <machine/metadata.h>
#include <machine/elf.h>
#include <stand.h>
#include "bootstrap.h"
#include "libofw.h"
#include "openfirm.h"
extern char end[];
extern vm_offset_t reloc; /* From <arch>/conf.c */
int
ppc64_ofw_elf_loadfile(char *filename, u_int64_t dest,
struct preloaded_file **result)
{
int r;
r = __elfN(loadfile)(filename, dest, result);
if (r != 0)
return (r);
/*
* No need to sync the icache for modules: this will
* be done by the kernel after relocation.
*/
if (!strcmp((*result)->f_type, "elf kernel"))
__syncicache((void *) (*result)->f_addr, (*result)->f_size);
return (0);
}
int
ppc64_ofw_elf_exec(struct preloaded_file *fp)
{
struct file_metadata *fmp;
vm_offset_t mdp, dtbp;
Elf_Ehdr *e;
int error;
intptr_t entry;
if ((fmp = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL) {
return(EFTYPE);
}
e = (Elf_Ehdr *)&fmp->md_data;
/* Handle function descriptor for ELFv1 kernels */
if ((e->e_flags & 3) == 2)
entry = e->e_entry;
else
entry = *(uint64_t *)e->e_entry;
if ((error = md_load64(fp->f_args, &mdp, &dtbp)) != 0)
return (error);
printf("Kernel entry at 0x%lx ...\n", entry);
dev_cleanup();
ofw_release_heap();
if (dtbp != 0) {
OF_quiesce();
((int (*)(u_long, u_long, u_long, void *, u_long))entry)(dtbp, 0, 0,
mdp, sizeof(mdp));
} else {
OF_chain((void *)reloc, end - (char *)reloc, (void *)entry,
(void *)mdp, sizeof(mdp));
}
panic("exec returned");
}
struct file_format ofw_elf64 =
{
ppc64_ofw_elf_loadfile,
ppc64_ofw_elf_exec
};