diff options
Diffstat (limited to 'sys/boot/ofw/libofw/elf_freebsd.c')
-rw-r--r-- | sys/boot/ofw/libofw/elf_freebsd.c | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/sys/boot/ofw/libofw/elf_freebsd.c b/sys/boot/ofw/libofw/elf_freebsd.c new file mode 100644 index 0000000..b6c86ba --- /dev/null +++ b/sys/boot/ofw/libofw/elf_freebsd.c @@ -0,0 +1,117 @@ +/*- + * Copyright (c) 2001 Benno Rice <benno@FreeBSD.org> + * 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. + * + * $FreeBSD$ + */ + +#include <sys/param.h> +#include <sys/linker.h> + +#include <machine/bootinfo.h> +#include <machine/elf.h> + +#include <stand.h> + +#include "bootstrap.h" +#include "libofw.h" +#include "openfirm.h" + +extern char end[]; +extern vm_offset_t reloc; /* From <arch>/conf.c */ + +int +ofw_elf_loadfile(char *filename, vm_offset_t dest, + struct preloaded_file **result) +{ + int r; + void *addr; + + r = elf_loadfile(filename, dest, result); + if (r != 0) + return (r); + + addr = OF_claim((void *)(*result)->f_addr, (*result)->f_size, 0); + + if (addr == (void *)-1 || addr != (void *)(*result)->f_addr) + return (ENOMEM); + + return (0); +} + +int +ofw_elf_exec(struct preloaded_file *fp) +{ + struct file_metadata *md; + Elf_Ehdr *ehdr; + vm_offset_t entry, bootinfop; + int boothowto, err, bootdev; + struct bootinfo *bi; + vm_offset_t ssym, esym; + + if ((md = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL) { + return(EFTYPE); /* XXX actually EFUCKUP */ + } + ehdr = (Elf_Ehdr *)&(md->md_data); + +#if 0 + if ((err = bi_load(fp->f_args, &boothowto, &bootdev, &bootinfop)) != 0) + return(err); +#endif + entry = ehdr->e_entry & 0xffffff; + + ssym = esym = 0; + if ((md = file_findmetadata(fp, MODINFOMD_SSYM)) != NULL) + ssym = *((vm_offset_t *)&(md->md_data)); + if ((md = file_findmetadata(fp, MODINFOMD_ESYM)) != NULL) + esym = *((vm_offset_t *)&(md->md_data)); + if (ssym == 0 || esym == 0) + ssym = esym = 0; /* sanity */ +#if 0 + bi = (struct bootinfo *)PTOV(bootinfop); + bi->bi_symtab = ssym; + bi->bi_esymtab = esym; +#endif + +/* +#ifdef DEBUG +*/ + printf("Start @ 0x%lx ...\n", entry); +/* +#endif +*/ + + dev_cleanup(); + ofw_release_heap(); +/* OF_chain(0, 0, entry, bootinfop, sizeof(struct bootinfo));*/ + OF_chain((void *)reloc, end - (char *)reloc, (void *)entry, NULL, 0); + + panic("exec returned"); +} + +struct file_format ofw_elf = +{ + ofw_elf_loadfile, + ofw_elf_exec +}; |