text: /*-
   * 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/exec_linker.h>
  
  #ifdef __mips__
  #include <sys/proc.h>
  #include <machine/frame.h>
  #endif
  #include <machine/md_var.h>
  #include <machine/metadata.h>
  #include <machine/elf_machdep.h>
  
  #include <lib/libsa/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)
  };
  