1 /* 2 * Copyright (C) 2018 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 29 #include <sys/cdefs.h> 30 31 extern "C" void __internal_linker_error() { 32 __builtin_trap(); 33 } 34 35 __strong_alias(__loader_android_create_namespace, __internal_linker_error); 36 __strong_alias(__loader_android_dlopen_ext, __internal_linker_error); 37 __strong_alias(__loader_android_dlwarning, __internal_linker_error); 38 __strong_alias(__loader_android_get_application_target_sdk_version, __internal_linker_error); 39 __strong_alias(__loader_android_get_LD_LIBRARY_PATH, __internal_linker_error); 40 __strong_alias(__loader_android_get_exported_namespace, __internal_linker_error); 41 __strong_alias(__loader_android_init_anonymous_namespace, __internal_linker_error); 42 __strong_alias(__loader_android_link_namespaces, __internal_linker_error); 43 __strong_alias(__loader_android_link_namespaces_all_libs, __internal_linker_error); 44 __strong_alias(__loader_android_set_application_target_sdk_version, __internal_linker_error); 45 __strong_alias(__loader_android_update_LD_LIBRARY_PATH, __internal_linker_error); 46 __strong_alias(__loader_cfi_fail, __internal_linker_error); 47 __strong_alias(__loader_dl_iterate_phdr, __internal_linker_error); 48 __strong_alias(__loader_dladdr, __internal_linker_error); 49 __strong_alias(__loader_dlclose, __internal_linker_error); 50 __strong_alias(__loader_dlerror, __internal_linker_error); 51 __strong_alias(__loader_dlopen, __internal_linker_error); 52 __strong_alias(__loader_dlsym, __internal_linker_error); 53 __strong_alias(__loader_dlvsym, __internal_linker_error); 54 __strong_alias(__loader_add_thread_local_dtor, __internal_linker_error); 55 __strong_alias(__loader_remove_thread_local_dtor, __internal_linker_error); 56 #if defined(__arm__) 57 __strong_alias(__loader_dl_unwind_find_exidx, __internal_linker_error); 58 #endif 59 __strong_alias(rtld_db_dlactivity, __internal_linker_error); 60 61 #if defined(__arm__) 62 // An arm32 unwinding table has an R_ARM_NONE relocation to 63 // __aeabi_unwind_cpp_pr0. This shared library will never invoke the unwinder, 64 // so it doesn't actually need the routine. Define a dummy version here, 65 // because the real version calls libc functions (e.g. memcpy, abort), which 66 // would create a dependency cycle with libc.so. 67 __attribute__((visibility("hidden"))) 68 extern "C" void __aeabi_unwind_cpp_pr0() { 69 __builtin_trap(); 70 } 71 #endif 72
