105 lines
2.9 KiB
C
105 lines
2.9 KiB
C
/*-
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* Copyright (c) 2001 Benno Rice <benno@FreeBSD.org>
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* All rights reserved.
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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/metadata.h>
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#include <machine/elf.h>
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#include <stand.h>
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#include "bootstrap.h"
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#include "libofw.h"
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#include "openfirm.h"
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extern char end[];
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extern vm_offset_t reloc; /* From <arch>/conf.c */
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int
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__elfN(ofw_loadfile)(char *filename, u_int64_t dest,
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struct preloaded_file **result)
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{
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int r;
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r = __elfN(loadfile)(filename, dest, result);
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if (r != 0)
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return (r);
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#if defined(__powerpc__)
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/*
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* No need to sync the icache for modules: this will
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* be done by the kernel after relocation.
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*/
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if (!strcmp((*result)->f_type, "elf kernel"))
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__syncicache((void *) (*result)->f_addr, (*result)->f_size);
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#endif
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return (0);
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}
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int
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__elfN(ofw_exec)(struct preloaded_file *fp)
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{
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struct file_metadata *fmp;
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vm_offset_t mdp, dtbp;
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Elf_Ehdr *e;
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int error;
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intptr_t entry;
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if ((fmp = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL) {
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return(EFTYPE);
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}
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e = (Elf_Ehdr *)&fmp->md_data;
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entry = e->e_entry;
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if ((error = md_load(fp->f_args, &mdp, &dtbp)) != 0)
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return (error);
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printf("Kernel entry at 0x%lx ...\n", e->e_entry);
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dev_cleanup();
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ofw_release_heap();
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if (dtbp != 0) {
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OF_quiesce();
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((int (*)(u_long, u_long, u_long, void *, u_long))entry)(dtbp, 0, 0,
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mdp, sizeof(mdp));
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} else {
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OF_chain((void *)reloc, end - (char *)reloc, (void *)entry,
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(void *)mdp, sizeof(mdp));
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}
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panic("exec returned");
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}
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struct file_format ofw_elf =
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{
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__elfN(ofw_loadfile),
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__elfN(ofw_exec)
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};
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