d3e1307bf5
Summary: All metadata.c files are very similar, with only trivial changes. Unify them into a single common file, with minor special-casing where needed. Reviewed By: imp Differential Revision: https://reviews.freebsd.org/D13978
126 lines
4.0 KiB
C
126 lines
4.0 KiB
C
/*-
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* Copyright (c) 2013-2014 Robert N. M. Watson
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* All rights reserved.
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*
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* This software was developed by SRI International and the University of
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* Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
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* ("CTSRD"), as part of the DARPA CRASH research programme.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/linker.h>
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#include <machine/bootinfo.h>
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#include <machine/elf.h>
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#include <bootstrap.h>
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#include <loader.h>
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#include <mips.h>
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#include <stand.h>
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static int beri_elf64_loadfile(char *, uint64_t,
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struct preloaded_file **);
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static int beri_elf64_exec(struct preloaded_file *fp);
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struct file_format beri_elf = {
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.l_load = beri_elf64_loadfile,
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.l_exec = beri_elf64_exec,
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};
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/*
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* bootinfo that we will pass onto the kernel; some fields derived from
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* *boot2_bootinfop, others filled in by loader.
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*/
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struct bootinfo bootinfo;
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static int
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beri_elf64_loadfile(char *filename, uint64_t dest,
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struct preloaded_file **result)
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{
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/*
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* Some platforms require invalidation of instruction caches here; we
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* don't need that currently.
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*/
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return (__elfN(loadfile)(filename, dest, result));
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}
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static int
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beri_elf64_exec(struct preloaded_file *fp)
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{
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void (*entry)(register_t, register_t, register_t, register_t);
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struct file_metadata *md;
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vm_offset_t mdp;
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Elf_Ehdr *ehdr;
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int error;
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md = file_findmetadata(fp, MODINFOMD_ELFHDR);
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if (md == NULL) {
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printf("%s: file_findmetadata failed\n", fp->f_name);
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return (EFTYPE);
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}
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ehdr = (Elf_Ehdr *)md->md_data;
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error = md_load64(fp->f_args, &mdp, NULL);
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if (error) {
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printf("%s: md_load64 failed\n", fp->f_name);
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return (error);
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}
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entry = (void *)ehdr->e_entry;
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printf("Kernel entry at %p\n", entry);
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dev_cleanup(); /* XXXRW: Required? */
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printf("Kernel args: %s\n", fp->f_args);
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/*
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* Configure bootinfo for the loaded kernel. Some values are
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* inherited from the bootinfo passed to us by boot2 (e.g., DTB
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* pointer); others are local to the loader (e.g., kernel boot flags).
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*/
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bzero(&bootinfo, sizeof(bootinfo));
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bootinfo.bi_version = BOOTINFO_VERSION;
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bootinfo.bi_size = sizeof(bootinfo);
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bootinfo.bi_boot2opts = boot2_bootinfo.bi_boot2opts;
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/* NB: bi_kernelname used only by boot2. */
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/* NB: bi_nfs_diskless not yet. */
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bootinfo.bi_dtb = boot2_bootinfo.bi_dtb;
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bootinfo.bi_memsize = boot2_bootinfo.bi_memsize;
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bootinfo.bi_modulep = mdp;
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/*
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* XXXRW: For now, pass 'memsize' rather than dtb or bootinfo. This
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* is the 'old' ABI spoken by Miniboot and the kernel. To pass in
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* boot2opts, modules, etc, we will need to fix this to pass in at
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* least bootinfop.
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*/
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(*entry)(boot2_argc, (register_t)boot2_argv, (register_t)boot2_envv,
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(register_t)&bootinfo);
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panic("exec returned");
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}
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