| Toomas Soome | 199767f | 2015-10-25 00:06:51 +0300 | [diff] [blame^] | 1 | /*- |
| 2 | * Copyright (c) 2001 Benno Rice <benno@FreeBSD.org> |
| 3 | * Copyright (c) 2007 Semihalf, Rafal Jaworowski <raj@semihalf.com> |
| 4 | * All rights reserved. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions |
| 8 | * are met: |
| 9 | * 1. Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * 2. Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
| 14 | * |
| 15 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| 16 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 17 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 18 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| 19 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 20 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 21 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 22 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 23 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 24 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 25 | * SUCH DAMAGE. |
| 26 | */ |
| 27 | |
| 28 | #include <sys/cdefs.h> |
| 29 | __FBSDID("$FreeBSD$"); |
| 30 | |
| 31 | #include <sys/param.h> |
| 32 | #include <sys/linker.h> |
| 33 | |
| 34 | #ifdef __mips__ |
| 35 | #include <sys/proc.h> |
| 36 | #include <machine/frame.h> |
| 37 | #endif |
| 38 | #include <machine/md_var.h> |
| 39 | #include <machine/metadata.h> |
| 40 | #include <machine/elf.h> |
| 41 | |
| 42 | #include <stand.h> |
| 43 | |
| 44 | #include "bootstrap.h" |
| 45 | #include "libuboot.h" |
| 46 | |
| 47 | extern vm_offset_t md_load(char *, vm_offset_t *); |
| 48 | |
| 49 | int |
| 50 | __elfN(uboot_load)(char *filename, u_int64_t dest, |
| 51 | struct preloaded_file **result) |
| 52 | { |
| 53 | int r; |
| 54 | |
| 55 | r = __elfN(loadfile)(filename, dest, result); |
| 56 | if (r != 0) |
| 57 | return (r); |
| 58 | |
| 59 | #if defined(__powerpc__) |
| 60 | /* |
| 61 | * No need to sync the icache for modules: this will |
| 62 | * be done by the kernel after relocation. |
| 63 | */ |
| 64 | if (!strcmp((*result)->f_type, "elf kernel")) |
| 65 | __syncicache((void *) (*result)->f_addr, (*result)->f_size); |
| 66 | #endif |
| 67 | return (0); |
| 68 | } |
| 69 | |
| 70 | int |
| 71 | __elfN(uboot_exec)(struct preloaded_file *fp) |
| 72 | { |
| 73 | struct file_metadata *fmp; |
| 74 | vm_offset_t mdp; |
| 75 | Elf_Ehdr *e; |
| 76 | int error; |
| 77 | void (*entry)(void *); |
| 78 | |
| 79 | if ((fmp = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL) |
| 80 | return (EFTYPE); |
| 81 | |
| 82 | e = (Elf_Ehdr *)&fmp->md_data; |
| 83 | |
| 84 | if ((error = md_load(fp->f_args, &mdp)) != 0) |
| 85 | return (error); |
| 86 | |
| 87 | entry = (void *)e->e_entry; |
| 88 | printf("Kernel entry at 0x%p...\n", entry); |
| 89 | |
| 90 | dev_cleanup(); |
| 91 | printf("Kernel args: %s\n", fp->f_args); |
| 92 | |
| 93 | (*entry)((void *)mdp); |
| 94 | panic("exec returned"); |
| 95 | } |
| 96 | |
| 97 | struct file_format uboot_elf = { |
| 98 | __elfN(uboot_load), |
| 99 | __elfN(uboot_exec) |
| 100 | }; |