diff options
Diffstat (limited to 'sys/boot/i386/libi386/elf64_freebsd.c')
| -rw-r--r-- | sys/boot/i386/libi386/elf64_freebsd.c | 126 |
1 files changed, 0 insertions, 126 deletions
diff --git a/sys/boot/i386/libi386/elf64_freebsd.c b/sys/boot/i386/libi386/elf64_freebsd.c deleted file mode 100644 index 338a7456443f..000000000000 --- a/sys/boot/i386/libi386/elf64_freebsd.c +++ /dev/null @@ -1,126 +0,0 @@ -/*- - * 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("$FreeBSD$"); - -#define __ELF_WORD_SIZE 64 -#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 "bootstrap.h" -#include "libi386.h" -#include "btxv86.h" - -static int elf64_exec(struct preloaded_file *amp); -static int elf64_obj_exec(struct preloaded_file *amp); - -struct file_format amd64_elf = { elf64_loadfile, elf64_exec }; -struct file_format amd64_elf_obj = { elf64_obj_loadfile, elf64_obj_exec }; - -#define PG_V 0x001 -#define PG_RW 0x002 -#define PG_U 0x004 -#define PG_PS 0x080 - -typedef u_int64_t p4_entry_t; -typedef u_int64_t p3_entry_t; -typedef u_int64_t p2_entry_t; -extern p4_entry_t PT4[]; -extern p3_entry_t PT3[]; -extern p2_entry_t PT2[]; - -u_int32_t entry_hi; -u_int32_t entry_lo; - -extern void amd64_tramp(); - -/* - * 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 -elf64_exec(struct preloaded_file *fp) -{ - struct file_metadata *md; - Elf_Ehdr *ehdr; - vm_offset_t modulep, kernend; - int err; - int i; - - if ((md = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL) - return(EFTYPE); - ehdr = (Elf_Ehdr *)&(md->md_data); - - err = bi_load64(fp->f_args, 0, &modulep, &kernend, 1); - if (err != 0) - return(err); - - bzero(PT4, PAGE_SIZE); - bzero(PT3, PAGE_SIZE); - bzero(PT2, PAGE_SIZE); - - /* - * This is kinda brutal, but every single 1GB VM memory segment points to - * the same first 1GB of physical memory. But it is more than adequate. - */ - for (i = 0; i < 512; i++) { - /* Each slot of the level 4 pages points to the same level 3 page */ - PT4[i] = (p4_entry_t)VTOP((uintptr_t)&PT3[0]); - PT4[i] |= PG_V | PG_RW | PG_U; - - /* Each slot of the level 3 pages points to the same level 2 page */ - PT3[i] = (p3_entry_t)VTOP((uintptr_t)&PT2[0]); - PT3[i] |= PG_V | PG_RW | PG_U; - - /* The level 2 page slots are mapped with 2MB pages for 1GB. */ - PT2[i] = i * (2 * 1024 * 1024); - PT2[i] |= PG_V | PG_RW | PG_PS | PG_U; - } - - entry_lo = ehdr->e_entry & 0xffffffff; - entry_hi = (ehdr->e_entry >> 32) & 0xffffffff; -#ifdef DEBUG - printf("Start @ %#llx ...\n", ehdr->e_entry); -#endif - - dev_cleanup(); - __exec((void *)VTOP(amd64_tramp), modulep, kernend); - - panic("exec returned"); -} - -static int -elf64_obj_exec(struct preloaded_file *fp) -{ - return (EFTYPE); -} |