diff options
Diffstat (limited to 'stand/efi/loader/arch/i386/elf32_freebsd.c')
| -rw-r--r-- | stand/efi/loader/arch/i386/elf32_freebsd.c | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/stand/efi/loader/arch/i386/elf32_freebsd.c b/stand/efi/loader/arch/i386/elf32_freebsd.c new file mode 100644 index 000000000000..d3c42613108e --- /dev/null +++ b/stand/efi/loader/arch/i386/elf32_freebsd.c @@ -0,0 +1,100 @@ +/*- + * Copyright (c) 1998 Michael Smith <msmith@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. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/exec.h> +#include <sys/linker.h> +#include <string.h> +#include <machine/bootinfo.h> +#include <machine/elf.h> +#include <stand.h> + +#include <efi.h> +#include <efilib.h> + +#include "bootstrap.h" +#include "../libi386/libi386.h" +#include "../btx/lib/btxv86.h" + +extern void __exec(caddr_t addr, ...); +extern int bi_load(char *args, vm_offset_t *modulep, vm_offset_t *kernendp); +extern int ldr_enter(const char *kernel); + +static int elf32_exec(struct preloaded_file *amp); +static int elf32_obj_exec(struct preloaded_file *amp); + +struct file_format i386_elf = { elf32_loadfile, elf32_exec }; +struct file_format i386_elf_obj = { elf32_obj_loadfile, elf32_obj_exec }; + +struct file_format *file_formats[] = { + &i386_elf, + &i386_elf_obj, + NULL +}; + +/* + * There is an ELF kernel and one or more ELF modules loaded. + * We wish to start executing the kernel image, so make such + * preparations as are required, and do so. + */ +static int +elf32_exec(struct preloaded_file *fp) +{ + struct file_metadata *md; + Elf_Ehdr *ehdr; + vm_offset_t entry, bootinfop, modulep, kernend; + int boothowto, err, bootdev; + + if ((md = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL) + return(EFTYPE); + ehdr = (Elf_Ehdr *)&(md->md_data); + + efi_time_fini(); + err = bi_load(fp->f_args, &modulep, &kernend); + if (err != 0) { + efi_time_init(); + return(err); + } + entry = ehdr->e_entry & 0xffffff; + + printf("Start @ 0x%x ...\n", entry); + + ldr_enter(fp->f_name); + + dev_cleanup(); + __exec((void *)entry, boothowto, bootdev, 0, 0, 0, bootinfop, modulep, kernend); + + panic("exec returned"); +} + +static int +elf32_obj_exec(struct preloaded_file *fp) +{ + return (EFTYPE); +} |