1 /* Early initialization of libc.so, libc.so side. 2 Copyright (C) 2020-2022 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 <ctype.h> 20 #include <elision-conf.h> 21 #include <libc-early-init.h> 22 #include <libc-internal.h> 23 #include <lowlevellock.h> 24 #include <pthread_early_init.h> 25 #include <sys/single_threaded.h> 26 27 #ifdef SHARED 28 _Bool __libc_initial; 29 #endif 30 31 void __libc_early_init(_Bool initial)32__libc_early_init (_Bool initial) 33 { 34 /* Initialize ctype data. */ 35 __ctype_init (); 36 37 /* Only the outer namespace is marked as single-threaded. */ 38 __libc_single_threaded = initial; 39 40 #ifdef SHARED 41 __libc_single_threaded_internal = __libc_initial = initial; 42 #endif 43 44 __pthread_early_init (); 45 46 #if ENABLE_ELISION_SUPPORT 47 __lll_elision_init (); 48 #endif 49 } 50