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- /* Support code for fibers and multithreading.
- Copyright (C) 2019-2022 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__ || __OpenBSD__ || __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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