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49 lines
1.8 KiB
C
49 lines
1.8 KiB
C
/* Copyright (C) 2014-2020 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>.
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Versioned copy of debug/longjmp_chk.c modified for versioning
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the reverted jmpbuf extension. */
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#include <shlib-compat.h>
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#if IS_IN (libc) && defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20)
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/* this is a copy from debug/longjmp_chk.c because we need an unique name
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for __longjmp_chk, but it is already named via a define
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for __libc_siglongjmp in debug/longjmp_chk.c. */
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# include <setjmp.h>
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// XXX Should move to include/setjmp.h
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extern void ____longjmp_chk (__jmp_buf __env, int __val)
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__attribute__ ((__noreturn__));
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# define __longjmp ____longjmp_chk
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# define __libc_siglongjmp __v1__longjmp_chk
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# include <setjmp/longjmp.c>
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/* In glibc release 2.19 a new versions of __longjmp_chk was introduced,
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but was reverted before 2.20. Thus both versions are the same function. */
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strong_alias (__v1__longjmp_chk, __v2__longjmp_chk);
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versioned_symbol (libc, __v1__longjmp_chk, __longjmp_chk, GLIBC_2_11);
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compat_symbol (libc, __v2__longjmp_chk, __longjmp_chk, GLIBC_2_19);
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#else
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# include <debug/longjmp_chk.c>
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#endif
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