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e76b70dec9
Not all compilers, notably GCC < 10, have support for __attribute__((no_stack_protector)). Fall back to a mechanism that also works there. Tested with GCC 9.5.0 from kernel.org crosstools. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Signed-off-by: Willy Tarreau <w@1wt.eu> Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
25 lines
781 B
C
25 lines
781 B
C
/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
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/*
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* NOLIBC compiler support header
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* Copyright (C) 2023 Thomas Weißschuh <linux@weissschuh.net>
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*/
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#ifndef _NOLIBC_COMPILER_H
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#define _NOLIBC_COMPILER_H
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#if defined(__SSP__) || defined(__SSP_STRONG__) || defined(__SSP_ALL__) || defined(__SSP_EXPLICIT__)
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#define _NOLIBC_STACKPROTECTOR
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#endif /* defined(__SSP__) ... */
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#if defined(__has_attribute)
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# if __has_attribute(no_stack_protector)
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# define __no_stack_protector __attribute__((no_stack_protector))
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# else
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# define __no_stack_protector __attribute__((__optimize__("-fno-stack-protector")))
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# endif
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#else
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# define __no_stack_protector __attribute__((__optimize__("-fno-stack-protector")))
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#endif /* defined(__has_attribute) */
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#endif /* _NOLIBC_COMPILER_H */
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