ppc64_elf_freebsd.c revision 303975
1/*- 2 * Copyright (c) 2001 Benno Rice <benno@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> 28__FBSDID("$FreeBSD: releng/11.0/sys/boot/powerpc/ps3/ppc64_elf_freebsd.c 291598 2015-12-01 17:01:27Z nwhitehorn $"); 29 30#define __ELF_WORD_SIZE 64 31 32#include <sys/param.h> 33#include <sys/linker.h> 34 35#include <machine/metadata.h> 36#include <machine/elf.h> 37 38#include <stand.h> 39 40#include "bootstrap.h" 41 42extern char end[]; 43extern vm_offset_t reloc; /* From <arch>/conf.c */ 44 45int 46ppc64_elf_loadfile(char *filename, u_int64_t dest, 47 struct preloaded_file **result) 48{ 49 int r; 50 51 r = __elfN(loadfile)(filename, dest, result); 52 if (r != 0) 53 return (r); 54 55 /* 56 * No need to sync the icache for modules: this will 57 * be done by the kernel after relocation. 58 */ 59 if (!strcmp((*result)->f_type, "elf kernel")) 60 __syncicache((void *) (*result)->f_addr, (*result)->f_size); 61 return (0); 62} 63 64int 65ppc64_elf_exec(struct preloaded_file *fp) 66{ 67 struct file_metadata *fmp; 68 vm_offset_t mdp; 69 Elf_Ehdr *e; 70 int error; 71 int (*entry)(u_long, u_long, u_long, void *, u_long); 72 73 if ((fmp = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL) { 74 return(EFTYPE); 75 } 76 e = (Elf_Ehdr *)&fmp->md_data; 77 78 /* Handle function descriptor for ELFv1 kernels */ 79 if ((e->e_flags & 3) == 2) 80 entry = e->e_entry; 81 else 82 entry = (void *)(uintptr_t)(*(uint64_t *)e->e_entry); 83 84 if ((error = md_load64(fp->f_args, &mdp)) != 0) 85 return (error); 86 87 printf("Kernel entry at %p ...\n", entry); 88 89 dev_cleanup(); 90 91 entry(0 /* FDT */, 0 /* Phys. mem offset */, 0 /* OF entry */, 92 (void *)mdp, sizeof(mdp)); 93 94 panic("exec returned"); 95} 96 97struct file_format ppc_elf64 = 98{ 99 ppc64_elf_loadfile, 100 ppc64_elf_exec 101}; 102