1 /* 2 * Copyright (C) 2008 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 __DLFCN_H__ 29 #define __DLFCN_H__ 30 31 #include <sys/cdefs.h> 32 33 __BEGIN_DECLS 34 35 typedef struct { 36 const char *dli_fname; /* Pathname of shared object that 37 contains address */ 38 void *dli_fbase; /* Address at which shared object 39 is loaded */ 40 const char *dli_sname; /* Name of nearest symbol with address 41 lower than addr */ 42 void *dli_saddr; /* Exact address of symbol named 43 in dli_sname */ 44 } Dl_info; 45 46 extern void* dlopen(const char* filename, int flag); 47 extern int dlclose(void* handle); 48 extern const char* dlerror(void); 49 extern void* dlsym(void* handle, const char* symbol); 50 extern int dladdr(const void* addr, Dl_info *info); 51 52 enum { 53 RTLD_NOW = 0, 54 RTLD_LAZY = 1, 55 56 RTLD_LOCAL = 0, 57 RTLD_GLOBAL = 2, 58 }; 59 60 #define RTLD_DEFAULT ((void*) 0xffffffff) 61 #define RTLD_NEXT ((void*) 0xfffffffe) 62 63 __END_DECLS 64 65 #endif /* __DLFCN_H */ 66 67 68