1 /* 2 * Copyright (C) 2019 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 #pragma once 30 31 #include <stdlib.h> 32 33 #include "private/bionic_elf_tls.h" 34 35 struct TlsModule; 36 struct soinfo; 37 38 void linker_setup_exe_static_tls(const char* progname); 39 void linker_finalize_static_tls(); 40 41 void register_soinfo_tls(soinfo* si); 42 void unregister_soinfo_tls(soinfo* si); 43 44 const TlsModule& get_tls_module(size_t module_id); 45 46 typedef size_t TlsDescResolverFunc(size_t); 47 48 struct TlsDescriptor { 49 #if defined(__arm__) 50 size_t arg; 51 TlsDescResolverFunc* func; 52 #else 53 TlsDescResolverFunc* func; 54 size_t arg; 55 #endif 56 }; 57 58 struct TlsDynamicResolverArg { 59 size_t generation; 60 TlsIndex index; 61 }; 62 63 __LIBC_HIDDEN__ extern "C" size_t tlsdesc_resolver_static(size_t); 64 __LIBC_HIDDEN__ extern "C" size_t tlsdesc_resolver_dynamic(size_t); 65 __LIBC_HIDDEN__ extern "C" size_t tlsdesc_resolver_unresolved_weak(size_t); 66