1 /* Free resources stored in thread-local variables on thread exit. 2 Copyright (C) 2003-2022 Free Software Foundation, Inc. 3 This file is part of the GNU C Library. 4 5 The GNU C Library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 of the License, or (at your option) any later version. 9 10 The GNU C Library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with the GNU C Library; if not, see 17 <https://www.gnu.org/licenses/>. */ 18 19 #include <dlfcn/dlerror.h> 20 #include <libc-internal.h> 21 #include <malloc-internal.h> 22 #include <resolv/resolv-internal.h> 23 #include <rpc/rpc.h> 24 #include <string.h> 25 #include <tls-internal.h> 26 #include <shlib-compat.h> 27 28 /* Thread shutdown function. Note that this function must be called 29 for threads during shutdown for correctness reasons. Unlike 30 __libc_subfreeres, skipping calls to it is not a valid optimization. 31 This is called directly from pthread_create as the thread exits. */ 32 void __libc_thread_freeres(void)33__libc_thread_freeres (void) 34 { 35 #if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_32) 36 __rpc_thread_destroy (); 37 #endif 38 call_function_static_weak (__res_thread_freeres); 39 call_function_static_weak (__glibc_tls_internal_free); 40 call_function_static_weak (__libc_dlerror_result_free); 41 42 /* This should come last because it shuts down malloc for this 43 thread and the other shutdown functions might well call free. */ 44 call_function_static_weak (__malloc_arena_thread_freeres); 45 } 46