1 /* Copyright (C) 2014-2021 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 4 The GNU C Library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the License, or (at your option) any later version. 8 9 The GNU C Library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library; if not, see 16 <https://www.gnu.org/licenses/>. 17 18 Versioned copy of setjmp/longjmp.c modified for versioning 19 the reverted jmpbuf extension. */ 20 21 #include <shlib-compat.h> 22 23 #if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20) 24 /* We don't want the weak alias to longjmp, _longjmp, siglongjmp here, 25 because we create the default/versioned symbols later. */ 26 # define __libc_siglongjmp __libc_siglongjmp 27 #endif /* SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20) */ 28 29 #include <setjmp/longjmp.c> 30 31 #if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20) 32 /* In glibc release 2.19 new versions of longjmp-functions were introduced, 33 but were reverted before 2.20. Thus both versions are the same function. */ 34 35 strong_alias (__libc_siglongjmp, __libc_longjmp) 36 37 weak_alias (__libc_siglongjmp, __v1_longjmp) 38 weak_alias (__libc_siglongjmp, __v2_longjmp) 39 versioned_symbol (libc, __v1_longjmp, _longjmp, GLIBC_2_0); 40 compat_symbol (libc, __v2_longjmp, _longjmp, GLIBC_2_19); 41 42 weak_alias (__libc_siglongjmp, __v1longjmp) 43 weak_alias (__libc_siglongjmp, __v2longjmp) 44 versioned_symbol (libc, __v1longjmp, longjmp, GLIBC_2_0); 45 compat_symbol (libc, __v2longjmp, longjmp, GLIBC_2_19); 46 47 weak_alias (__libc_siglongjmp, __v1siglongjmp) 48 weak_alias (__libc_siglongjmp, __v2siglongjmp) 49 versioned_symbol (libc, __v1siglongjmp, siglongjmp, GLIBC_2_0); 50 compat_symbol (libc, __v2siglongjmp, siglongjmp, GLIBC_2_19); 51 #endif /* SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20) */ 52