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/* Support code for fibers and multithreading.
Copyright (C) 2019-2020 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#if (__linux__ || __FreeBSD__ || __NetBSD__ || __DragonFly__) && __ELF__
/*
* Mark the resulting object file as not requiring execution permissions on
* stack memory. The absence of this section would mark the whole resulting
* library as requiring an executable stack, making it impossible to
* dynamically load druntime on several Linux platforms where this is
* forbidden due to security policies.
*/
.section .note.GNU-stack,"",%progbits
#endif
/* Let preprocessor tell us if C symbols have a prefix: __USER_LABEL_PREFIX__ */
#ifdef __USER_LABEL_PREFIX__
#define __CONCAT2(a, b) a ## b
#define __CONCAT(a, b) __CONCAT2(a, b)
#define CSYM(name) __CONCAT(__USER_LABEL_PREFIX__, name)
#else
#define CSYM(name) name
#endif
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