1 /* $OpenBSD: archdep.h,v 1.4 2014/12/30 19:26:38 miod 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 _SH_ARCHDEP_H_ 30 #define _SH_ARCHDEP_H_ 31 32 #define DL_MALLOC_ALIGN 4 /* Arch constraint or otherwise */ 33 34 #define MACHID EM_SH /* ELF e_machine ID value checked */ 35 36 #define RELTYPE Elf32_Rela 37 #define RELSIZE sizeof(Elf32_Rela) 38 39 #include <elf_abi.h> 40 #include <machine/reloc.h> 41 #include "syscall.h" 42 #include "util.h" 43 44 #define RTLD_NO_WXORX 45 46 /* 47 * The following functions are declared inline so they can 48 * be used before bootstrap linking has been finished. 49 */ 50 51 static 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 *)(long)_dl__syscall((quad_t)SYS_mmap, addr, len, prot, 56 flags, fd, 0, offset)); 57 } 58 59 static inline void 60 RELOC_REL(Elf_Rel *r, const Elf_Sym *s, Elf_Addr *p, unsigned long v) 61 { 62 if (ELF_R_TYPE(r->r_info) == R_SH_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 static inline void 72 RELOC_RELA(Elf32_Rela *r, const Elf32_Sym *s, Elf32_Addr *p, unsigned long v, 73 Elf_Addr *pltgot) 74 { 75 if (ELF_R_TYPE(r->r_info) == R_SH_RELATIVE) { 76 *p = v + r->r_addend; 77 } else if (ELF_R_TYPE(r->r_info) == R_SH_DIR32) { 78 *p = s->st_value + v + r->r_addend; 79 } else { 80 /* XXX - printf might not work here, but we give it a shot. */ 81 _dl_printf("Unknown bootstrap relocation.\n"); 82 _dl_exit(6); 83 } 84 } 85 86 #define RELOC_GOT(obj, offs) 87 88 #define GOT_PERMS (PROT_READ|PROT_EXEC) 89 90 #endif /* _SH_ARCHDEP_H_ */ 91