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Makefile
(1.36 KB)
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Makefile.depend
(248 B)
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autoload.c
(1.38 KB)
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biossmap.c
(2.31 KB)
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bootinfo.c
(3.26 KB)
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bootinfo32.c
(8.41 KB)
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bootinfo64.c
(7.61 KB)
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conf.c
(3.22 KB)
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copy.c
(1.99 KB)
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devicename.c
(5.5 KB)
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elf32_freebsd.c
(3.38 KB)
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elf64_freebsd.c
(4.92 KB)
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gfx_fb.c
(2.41 KB)
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host.c
(3.7 KB)
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libuserboot.h
(2.67 KB)
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main.c
(7.5 KB)
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userboot_cons.c
(3.15 KB)
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userboot_disk.c
(6.17 KB)
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version
(71 B)
Editing: elf32_freebsd.c
/*- * 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> #define _MACHINE_ELF_WANT_32BIT #include <i386/include/bootinfo.h> #include <i386/include/elf.h> #include <stand.h> #include "bootstrap.h" #include "libuserboot.h" 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 }; #define GUEST_STACK 0x1000 /* Initial stack base */ #define GUEST_GDT 0x3000 /* Address of initial GDT */ /* * 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; uint32_t stack[1024], *sp; if ((md = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL) return(EFTYPE); ehdr = (Elf_Ehdr *)&(md->md_data); err = bi_load32(fp->f_args, &boothowto, &bootdev, &bootinfop, &modulep, &kernend); if (err != 0) return(err); entry = ehdr->e_entry & 0xffffff; #ifdef DEBUG printf("Start @ 0x%lx ...\n", entry); #endif dev_cleanup(); /* * Build a scratch stack at physical 0x1000 */ memset(stack, 0, sizeof(stack)); sp = (uint32_t *)((char *)stack + sizeof(stack)); *--sp = kernend; *--sp = modulep; *--sp = bootinfop; *--sp = 0; *--sp = 0; *--sp = 0; *--sp = bootdev; *--sp = boothowto; /* * Fake return address to mimic "new" boot blocks. For more * details see recover_bootinfo in locore.S. */ *--sp = 0xbeefface; CALLBACK(copyin, stack, GUEST_STACK, sizeof(stack)); CALLBACK(setreg, 4, (char *)sp - (char *)stack + GUEST_STACK); CALLBACK(setgdt, GUEST_GDT, 8 * 4 - 1); CALLBACK(exec, entry); panic("exec returned"); } static int elf32_obj_exec(struct preloaded_file *fp) { return (EFTYPE); }
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