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44 lines
1.2 KiB
44 lines
1.2 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef _TOOLS_LINUX_COMPILER_H_ |
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#error "Please don't include <linux/compiler-gcc.h> directly, include <linux/compiler.h> instead." |
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#endif |
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/* |
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* Common definitions for all gcc versions go here. |
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*/ |
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#ifndef GCC_VERSION |
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#define GCC_VERSION (__GNUC__ * 10000 \ |
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+ __GNUC_MINOR__ * 100 \ |
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+ __GNUC_PATCHLEVEL__) |
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#endif |
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#if GCC_VERSION >= 70000 && !defined(__CHECKER__) |
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# define __fallthrough __attribute__ ((fallthrough)) |
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#endif |
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#if GCC_VERSION >= 40300 |
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# define __compiletime_error(message) __attribute__((error(message))) |
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#endif /* GCC_VERSION >= 40300 */ |
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/* &a[0] degrades to a pointer: a different type from an array */ |
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#define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0])) |
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#ifndef __pure |
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#define __pure __attribute__((pure)) |
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#endif |
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#define noinline __attribute__((noinline)) |
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#ifndef __packed |
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#define __packed __attribute__((packed)) |
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#endif |
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#ifndef __noreturn |
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#define __noreturn __attribute__((noreturn)) |
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#endif |
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#ifndef __aligned |
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#define __aligned(x) __attribute__((aligned(x))) |
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#endif |
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#define __printf(a, b) __attribute__((format(printf, a, b))) |
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#define __scanf(a, b) __attribute__((format(scanf, a, b))) |
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#if GCC_VERSION >= 50100 |
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#define COMPILER_HAS_GENERIC_BUILTIN_OVERFLOW 1 |
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#endif
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