ppc64_elf_freebsd.c revision 217044 
1/*-
2 * Copyright (c) 2001 Benno Rice <benno@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: head/sys/boot/powerpc/ps3/ppc64_elf_freebsd.c 217044 2011-01-06 04:12:29Z nwhitehorn $");
29
30#define __ELF_WORD_SIZE 64
31
32#include <sys/param.h>
33#include <sys/linker.h>
34
35#include <machine/metadata.h>
36#include <machine/elf.h>
37
38#include <stand.h>
39
40#include "bootstrap.h"
41
42extern char		end[];
43extern vm_offset_t	reloc;	/* From <arch>/conf.c */
44
45int
46ppc64_elf_loadfile(char *filename, u_int64_t dest,
47    struct preloaded_file **result)
48{
49	int	r;
50
51	r = __elfN(loadfile)(filename, dest, result);
52	if (r != 0)
53		return (r);
54
55	/*
56	 * No need to sync the icache for modules: this will
57	 * be done by the kernel after relocation.
58	 */
59	if (!strcmp((*result)->f_type, "elf kernel"))
60		__syncicache((void *) (*result)->f_addr, (*result)->f_size);
61	return (0);
62}
63
64int
65ppc64_elf_exec(struct preloaded_file *fp)
66{
67	struct file_metadata	*fmp;
68	vm_offset_t		mdp;
69	Elf_Ehdr		*e;
70	int			error;
71	int (*entry)(u_long, u_long, u_long, void *, u_long);
72
73	if ((fmp = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL) {
74		return(EFTYPE);
75	}
76	e = (Elf_Ehdr *)&fmp->md_data;
77
78	/* Handle function descriptor */
79	entry = (void *)(uintptr_t)(*(uint64_t *)e->e_entry);
80
81	if ((error = md_load64(fp->f_args, &mdp)) != 0)
82		return (error);
83
84	printf("Kernel entry at %p ...\n", entry);
85
86	dev_cleanup();
87
88	entry(0 /* FDT */, 0 /* Phys. mem offset */, 0 /* OF entry */,
89	     (void *)mdp, sizeof(mdp));
90
91	panic("exec returned");
92}
93
94struct file_format	ppc_elf64 =
95{
96	ppc64_elf_loadfile,
97	ppc64_elf_exec
98};
99