freebsd-dev/stand/uboot/elf_freebsd.c
Warner Losh 9dc70af83e stand/uboot: reorg
Build uboot ubldr and friends like we build efi binaries
o move everything to be under stand/uboot
o md code goes in arch/$ARCH
o move everything over from the library
  - Had to rename console.c, disk.c and module.c due to conflicts
o update version to 1.5 to reflect the new way of building

This results in a more consistent build system and should represent no
functional change, apart from powerpc version getting new help
file. Also, moved to exlcuding uboot on powerpc64le by using
BROKEN_OPTION instead of the incidental exclusion we had before due to
Makefile reorgs.

Sponsored by:		Netflix
Feedback by:		stevek, jrtc27
Differential Revision:	https://reviews.freebsd.org/D33362
2021-12-14 21:09:53 -07:00

97 lines
2.7 KiB
C

/*-
* Copyright (c) 2001 Benno Rice <benno@FreeBSD.org>
* Copyright (c) 2007 Semihalf, Rafal Jaworowski <raj@semihalf.com>
* 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("$FreeBSD$");
#include <sys/param.h>
#include <sys/linker.h>
#include <machine/md_var.h>
#include <machine/metadata.h>
#include <machine/elf.h>
#include <stand.h>
#include "bootstrap.h"
#include "libuboot.h"
extern vm_offset_t md_load(char *, vm_offset_t *, vm_offset_t *);
int
__elfN(uboot_load)(char *filename, uint64_t dest,
struct preloaded_file **result)
{
int r;
r = __elfN(loadfile)(filename, dest, result);
if (r != 0)
return (r);
#if defined(__powerpc__)
/*
* 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);
#endif
return (0);
}
int
__elfN(uboot_exec)(struct preloaded_file *fp)
{
struct file_metadata *fmp;
vm_offset_t mdp;
Elf_Ehdr *e;
int error;
void (*entry)(void *);
if ((fmp = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL)
return (EFTYPE);
e = (Elf_Ehdr *)&fmp->md_data;
if ((error = md_load(fp->f_args, &mdp, NULL)) != 0)
return (error);
entry = (void *)e->e_entry;
printf("Kernel entry at %p...\n", entry);
dev_cleanup();
printf("Kernel args: %s\n", fp->f_args);
(*entry)((void *)mdp);
panic("exec returned");
}
struct file_format uboot_elf = {
__elfN(uboot_load),
__elfN(uboot_exec)
};