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linux/tools/include/nolibc/compiler.h
Daniel Baumann 79d69e5050
Adding upstream version 6.12.33.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
2025-06-22 12:14:28 +02:00

35 lines
1.1 KiB
C

/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
/*
* NOLIBC compiler support header
* Copyright (C) 2023 Thomas Weißschuh <linux@weissschuh.net>
*/
#ifndef _NOLIBC_COMPILER_H
#define _NOLIBC_COMPILER_H
#if defined(__has_attribute)
# define __nolibc_has_attribute(attr) __has_attribute(attr)
#else
# define __nolibc_has_attribute(attr) 0
#endif
#if __nolibc_has_attribute(naked)
# define __nolibc_entrypoint __attribute__((naked))
# define __nolibc_entrypoint_epilogue()
#else
# define __nolibc_entrypoint __attribute__((optimize("Os", "omit-frame-pointer")))
# define __nolibc_entrypoint_epilogue() __builtin_unreachable()
#endif /* __nolibc_has_attribute(naked) */
#if defined(__SSP__) || defined(__SSP_STRONG__) || defined(__SSP_ALL__) || defined(__SSP_EXPLICIT__)
#define _NOLIBC_STACKPROTECTOR
#endif /* defined(__SSP__) ... */
#if __nolibc_has_attribute(no_stack_protector)
# define __no_stack_protector __attribute__((no_stack_protector))
#else
# define __no_stack_protector __attribute__((__optimize__("-fno-stack-protector")))
#endif /* __nolibc_has_attribute(no_stack_protector) */
#endif /* _NOLIBC_COMPILER_H */