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 <stdint.h> 32 #include <sys/cdefs.h> 33 #include <sys/types.h> 34 35 #include <elf.h> 36 37 __BEGIN_DECLS 38 39 #if defined(__LP64__) 40 #define ElfW(type) Elf64_ ## type 41 #else 42 #define ElfW(type) Elf32_ ## type 43 #endif 44 45 struct dl_phdr_info { 46 ElfW(Addr) dlpi_addr; 47 const char* dlpi_name; 48 const ElfW(Phdr)* dlpi_phdr; 49 ElfW(Half) dlpi_phnum; 50 }; 51 52 #if defined(__arm__) 53 int dl_iterate_phdr(int (*__callback)(struct dl_phdr_info*, size_t, void*), void* __data) __INTRODUCED_IN(21); 54 #else 55 int dl_iterate_phdr(int (*__callback)(struct dl_phdr_info*, size_t, void*), void* __data); 56 #endif 57 58 #ifdef __arm__ 59 typedef uintptr_t _Unwind_Ptr; 60 _Unwind_Ptr dl_unwind_find_exidx(_Unwind_Ptr, int*); 61 #endif 62 63 /* Used by the dynamic linker to communicate with the debugger. */ 64 struct link_map { 65 ElfW(Addr) l_addr; 66 char* l_name; 67 ElfW(Dyn)* l_ld; 68 struct link_map* l_next; 69 struct link_map* l_prev; 70 }; 71 72 /* Used by the dynamic linker to communicate with the debugger. */ 73 struct r_debug { 74 int32_t r_version; 75 struct link_map* r_map; 76 ElfW(Addr) r_brk; 77 enum { 78 RT_CONSISTENT, 79 RT_ADD, 80 RT_DELETE 81 } r_state; 82 ElfW(Addr) r_ldbase; 83 }; 84 85 __END_DECLS 86 87 #endif 88
