199767f8919635c4928607450d9e0abb932109ceToomas Soome/*-
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
199767f8919635c4928607450d9e0abb932109ceToomas Soome * All rights reserved.
199767f8919635c4928607450d9e0abb932109ceToomas Soome *
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Redistribution and use in source and binary forms, with or without
199767f8919635c4928607450d9e0abb932109ceToomas Soome * modification, are permitted provided that the following conditions
199767f8919635c4928607450d9e0abb932109ceToomas Soome * are met:
199767f8919635c4928607450d9e0abb932109ceToomas Soome * 1. Redistributions of source code must retain the above copyright
199767f8919635c4928607450d9e0abb932109ceToomas Soome * notice, this list of conditions and the following disclaimer.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * 2. Redistributions in binary form must reproduce the above copyright
199767f8919635c4928607450d9e0abb932109ceToomas Soome * notice, this list of conditions and the following disclaimer in the
199767f8919635c4928607450d9e0abb932109ceToomas Soome * documentation and/or other materials provided with the distribution.
199767f8919635c4928607450d9e0abb932109ceToomas Soome *
199767f8919635c4928607450d9e0abb932109ceToomas Soome * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
199767f8919635c4928607450d9e0abb932109ceToomas Soome * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
199767f8919635c4928607450d9e0abb932109ceToomas Soome * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
199767f8919635c4928607450d9e0abb932109ceToomas Soome * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
199767f8919635c4928607450d9e0abb932109ceToomas Soome * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
199767f8919635c4928607450d9e0abb932109ceToomas Soome * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
199767f8919635c4928607450d9e0abb932109ceToomas Soome * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
199767f8919635c4928607450d9e0abb932109ceToomas Soome * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
199767f8919635c4928607450d9e0abb932109ceToomas Soome * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
199767f8919635c4928607450d9e0abb932109ceToomas Soome * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
199767f8919635c4928607450d9e0abb932109ceToomas Soome * SUCH DAMAGE.
199767f8919635c4928607450d9e0abb932109ceToomas Soome */
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome#include <sys/cdefs.h>
199767f8919635c4928607450d9e0abb932109ceToomas Soome__FBSDID("$FreeBSD$");
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome#include <sys/param.h>
199767f8919635c4928607450d9e0abb932109ceToomas Soome#include <sys/exec.h>
199767f8919635c4928607450d9e0abb932109ceToomas Soome#include <sys/linker.h>
199767f8919635c4928607450d9e0abb932109ceToomas Soome#include <string.h>
199767f8919635c4928607450d9e0abb932109ceToomas Soome#include <machine/bootinfo.h>
199767f8919635c4928607450d9e0abb932109ceToomas Soome#include <machine/elf.h>
199767f8919635c4928607450d9e0abb932109ceToomas Soome#include <stand.h>
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome#include "bootstrap.h"
199767f8919635c4928607450d9e0abb932109ceToomas Soome#include "../libi386/libi386.h"
199767f8919635c4928607450d9e0abb932109ceToomas Soome#include "../btx/lib/btxv86.h"
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soomeextern void __exec(caddr_t addr, ...);
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soomestatic int elf32_exec(struct preloaded_file *amp);
199767f8919635c4928607450d9e0abb932109ceToomas Soomestatic int elf32_obj_exec(struct preloaded_file *amp);
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soomestruct file_format i386_elf = { elf32_loadfile, elf32_exec };
199767f8919635c4928607450d9e0abb932109ceToomas Soomestruct file_format i386_elf_obj = { elf32_obj_loadfile, elf32_obj_exec };
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soomestruct file_format *file_formats[] = {
199767f8919635c4928607450d9e0abb932109ceToomas Soome &i386_elf,
199767f8919635c4928607450d9e0abb932109ceToomas Soome &i386_elf_obj,
199767f8919635c4928607450d9e0abb932109ceToomas Soome NULL
199767f8919635c4928607450d9e0abb932109ceToomas Soome};
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome/*
199767f8919635c4928607450d9e0abb932109ceToomas Soome * There is an ELF kernel and one or more ELF modules loaded.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * We wish to start executing the kernel image, so make such
199767f8919635c4928607450d9e0abb932109ceToomas Soome * preparations as are required, and do so.
199767f8919635c4928607450d9e0abb932109ceToomas Soome */
199767f8919635c4928607450d9e0abb932109ceToomas Soomestatic int
199767f8919635c4928607450d9e0abb932109ceToomas Soomeelf32_exec(struct preloaded_file *fp)
199767f8919635c4928607450d9e0abb932109ceToomas Soome{
199767f8919635c4928607450d9e0abb932109ceToomas Soome struct file_metadata *md;
199767f8919635c4928607450d9e0abb932109ceToomas Soome Elf_Ehdr *ehdr;
199767f8919635c4928607450d9e0abb932109ceToomas Soome vm_offset_t entry, bootinfop, modulep, kernend;
199767f8919635c4928607450d9e0abb932109ceToomas Soome int boothowto, err, bootdev;
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome if ((md = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL)
199767f8919635c4928607450d9e0abb932109ceToomas Soome return(EFTYPE);
199767f8919635c4928607450d9e0abb932109ceToomas Soome ehdr = (Elf_Ehdr *)&(md->md_data);
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome err = bi_load(fp->f_args, &boothowto, &bootdev, &bootinfop, &modulep, &kernend);
199767f8919635c4928607450d9e0abb932109ceToomas Soome if (err != 0)
199767f8919635c4928607450d9e0abb932109ceToomas Soome return(err);
199767f8919635c4928607450d9e0abb932109ceToomas Soome entry = ehdr->e_entry & 0xffffff;
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome printf("Start @ 0x%lx ...\n", entry);
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome ldr_enter(fp->f_name);
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome dev_cleanup();
199767f8919635c4928607450d9e0abb932109ceToomas Soome __exec((void *)entry, boothowto, bootdev, 0, 0, 0, bootinfop, modulep, kernend);
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome panic("exec returned");
199767f8919635c4928607450d9e0abb932109ceToomas Soome}
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soomestatic int
199767f8919635c4928607450d9e0abb932109ceToomas Soomeelf32_obj_exec(struct preloaded_file *fp)
199767f8919635c4928607450d9e0abb932109ceToomas Soome{
199767f8919635c4928607450d9e0abb932109ceToomas Soome return (EFTYPE);
199767f8919635c4928607450d9e0abb932109ceToomas Soome}