1 /* 2 * Copyright (C) 2012 The Android Open Source Project 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 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 #ifndef _LINK_H_ 29 #define _LINK_H_ 30 31 #include <sys/cdefs.h> 32 #include <sys/types.h> 33 34 #include <elf.h> 35 36 __BEGIN_DECLS 37 38 #if defined(__LP64__) 39 #define ElfW(type) Elf64_ ## type 40 #else 41 #define ElfW(type) Elf32_ ## type 42 #endif 43 44 struct dl_phdr_info { 45 ElfW(Addr) dlpi_addr; 46 const char* dlpi_name; 47 const ElfW(Phdr)* dlpi_phdr; 48 ElfW(Half) dlpi_phnum; 49 }; 50 51 #if defined(__arm__) 52 int dl_iterate_phdr(int (*)(struct dl_phdr_info*, size_t, void*), void*) __INTRODUCED_IN(21); 53 #else 54 int dl_iterate_phdr(int (*)(struct dl_phdr_info*, size_t, void*), void*); 55 #endif 56 57 #ifdef __arm__ 58 typedef long unsigned int* _Unwind_Ptr; 59 _Unwind_Ptr dl_unwind_find_exidx(_Unwind_Ptr, int*); 60 #endif 61 62 /* Used by the dynamic linker to communicate with the debugger. */ 63 struct link_map { 64 ElfW(Addr) l_addr; 65 char* l_name; 66 ElfW(Dyn)* l_ld; 67 struct link_map* l_next; 68 struct link_map* l_prev; 69 }; 70 71 /* Used by the dynamic linker to communicate with the debugger. */ 72 struct r_debug { 73 int32_t r_version; 74 struct link_map* r_map; 75 ElfW(Addr) r_brk; 76 enum { 77 RT_CONSISTENT, 78 RT_ADD, 79 RT_DELETE 80 } r_state; 81 ElfW(Addr) r_ldbase; 82 }; 83 84 __END_DECLS 85 86 #endif /* _LINK_H_ */ 87
