/* * Copyright 2002-2019 Intel Corporation. * * This software and the related documents are Intel copyrighted materials, and your * use of them is governed by the express license under which they were provided to * you ("License"). Unless the License provides otherwise, you may not use, modify, * copy, publish, distribute, disclose or transmit this software or the related * documents without Intel's prior written permission. * * This software and the related documents are provided as is, with no express or * implied warranties, other than those that are expressly stated in the License. * * This file incorporates work covered by the following copyright and permission notice: */ /* * Copyright (C) 2008 The Android Open Source Project * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef __DLFCN_H__ #define __DLFCN_H__ #include __BEGIN_DECLS typedef struct { const char *dli_fname; /* Pathname of shared object that contains address */ void *dli_fbase; /* Address at which shared object is loaded */ const char *dli_sname; /* Name of nearest symbol with address lower than addr */ void *dli_saddr; /* Exact address of symbol named in dli_sname */ } Dl_info; extern void* dlopen(const char* filename, int flag); extern int dlclose(void* handle); extern const char* dlerror(void); extern void* dlsym(void* handle, const char* symbol); extern int dladdr(const void* addr, Dl_info *info); enum { #if defined(__APPLE__) RTLD_LAZY = 1, RTLD_NOW = 2, RTLD_LOCAL = 4, RTLD_GLOBAL = 8, RTLD_NOLOAD = 0x10, RTLD_NODELETE = 0x80, RTLD_FIRST = 0x100, /* macOS 10.5 and later */ #else # if defined(__LP64__) RTLD_NOW = 2, # else RTLD_NOW = 0, # endif RTLD_LAZY = 1, RTLD_LOCAL = 0, # if defined(__LP64__) RTLD_GLOBAL = 0x00100, # else RTLD_GLOBAL = 2, # endif RTLD_NOLOAD = 4, #endif }; #if defined(__APPLE__) # define RTLD_NEXT ((void *) -1) /* Search subsequent objects. */ # define RTLD_DEFAULT ((void *) -2) /* Use default search algorithm. */ # define RTLD_SELF ((void *) -3) /* Search this and subsequent objects (macOS 10.5 and later) */ # define RTLD_MAIN_ONLY ((void *) -5) /* Search main executable only (macOS 10.5 and later) */ #else # if defined (__LP64__) # define RTLD_DEFAULT ((void*) 0) # define RTLD_NEXT ((void*) -1L) # else # define RTLD_DEFAULT ((void*) 0xffffffff) # define RTLD_NEXT ((void*) 0xfffffffe) # endif #endif #if defined(__APPLE__) && defined(__NEED_DYLD_PRIVATE) #include #include struct dyld_unwind_sections { const struct mach_header* mh; const void* dwarf_section; uintptr_t dwarf_section_length; const void* compact_unwind_section; uintptr_t compact_unwind_section_length; }; extern bool _dyld_find_unwind_sections(void* addr, struct dyld_unwind_sections* info); extern void _dyld_register_func_for_add_image(void (*func)(const struct mach_header* mh, intptr_t vmaddr_slide)); extern void _dyld_register_func_for_remove_image(void (*func)(const struct mach_header* mh, intptr_t vmaddr_slide)); #endif __END_DECLS #endif /* __DLFCN_H */