archdep.h revision 1.6
1/* $OpenBSD: archdep.h,v 1.6 2015/12/06 23:36:12 guenther Exp $ */ 2 3/* 4 * Copyright (c) 1998 Per Fogelstrom, Opsycon AB 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 ``AS IS'' AND ANY EXPRESS 16 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 19 * 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 29#ifndef _ARM_ARCHDEP_H_ 30#define _ARM_ARCHDEP_H_ 31 32#define RELOC_TAG DT_REL 33 34#define DL_MALLOC_ALIGN 4 /* Arch constraint or otherwise */ 35 36#define MACHID EM_ARM /* ELF e_machine ID value checked */ 37 38#define RELTYPE Elf32_Rela 39#define RELSIZE sizeof(Elf32_Rela) 40 41#include <elf_abi.h> 42#include <machine/reloc.h> 43#include "syscall.h" 44#include "util.h" 45 46/* 47 * The following functions are declared inline so they can 48 * be used before bootstrap linking has been finished. 49 */ 50 51static inline void * 52_dl_mmap(void *addr, unsigned int len, unsigned int prot, 53 unsigned int flags, int fd, off_t offset) 54{ 55 return((void *)_dl__syscall((quad_t)SYS_mmap, addr, len, prot, 56 flags, fd, 0, offset)); 57} 58 59static inline void 60RELOC_DYN(Elf_Rel *r, const Elf_Sym *s, Elf_Addr *p, unsigned long v) 61{ 62 if (ELF_R_TYPE(r->r_info) == R_ARM_RELATIVE) { 63 *p += v; 64 } else { 65 /* XXX - printf might not work here, but we give it a shot. */ 66 _dl_printf("Unknown bootstrap relocation.\n"); 67 _dl_exit(6); 68 } 69} 70 71#define RELOC_GOT(obj, offs) 72 73#define GOT_PERMS (PROT_READ|PROT_EXEC) 74 75#endif /* _ARM_ARCHDEP_H_ */ 76