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https://git.proxmox.com/git/efi-boot-shim
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aedb8470bd
The license statements in our source files were getting to be a giant mess, and mostly they all just say the same thing. I've switched most of it to SPDX labels, but left copyright statements in place (where they were not obviously incorrect copy-paste jobs that I did...). If there's some change here you don't think is valid, let me know and we can fix it up together. Signed-off-by: Peter Jones <pjones@redhat.com>
154 lines
3.9 KiB
C
154 lines
3.9 KiB
C
// SPDX-License-Identifier: BSD-2-Clause-Patent
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#ifndef COMPILER_H_
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#define COMPILER_H_
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#ifndef UNUSED
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#define UNUSED __attribute__((__unused__))
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#endif
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#ifndef HIDDEN
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#define HIDDEN __attribute__((__visibility__ ("hidden")))
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#endif
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#ifndef PUBLIC
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#define PUBLIC __attribute__((__visibility__ ("default")))
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#endif
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#ifndef DESTRUCTOR
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#define DESTRUCTOR __attribute__((destructor))
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#endif
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#ifndef CONSTRUCTOR
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#define CONSTRUCTOR __attribute__((constructor))
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#endif
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#ifndef ALIAS
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#define ALIAS(x) __attribute__((weak, alias (#x)))
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#endif
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#ifndef NONNULL
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#endif
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#define NONNULL(first, args...) __attribute__((__nonnull__(first, ## args)))
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#ifndef PRINTF
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#define PRINTF(first, args...) __attribute__((__format__(printf, first, ## args)))
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#endif
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#ifndef FLATTEN
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#define FLATTEN __attribute__((__flatten__))
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#endif
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#ifndef PACKED
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#define PACKED __attribute__((__packed__))
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#endif
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#ifndef VERSION
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#define VERSION(sym, ver) __asm__(".symver " # sym "," # ver)
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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(n) __attribute__((__aligned__(n)))
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#endif
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#ifndef CLEANUP_FUNC
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#define CLEANUP_FUNC(x) __attribute__((__cleanup__(x)))
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#endif
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#ifndef USED
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#define USED __attribute__((__used__))
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#endif
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#ifndef SECTION
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#define SECTION(x) __attribute__((__section__(x)))
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#endif
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#ifndef OPTIMIZE
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#define OPTIMIZE(x) __attribute__((__optimize__(x)))
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#endif
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#ifndef __CONCAT
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#define __CONCAT3(a, b, c) a ## b ## c
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#endif
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#ifndef CAT
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#define CAT(a, b) __CONCAT(a, b)
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#endif
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#ifndef CAT3
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#define CAT3(a, b, c) __CONCAT3(a, b, c)
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#endif
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#ifndef STRING
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#define STRING(x) __STRING(x)
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#endif
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#ifndef WRITE_ONCE
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#define WRITE_ONCE(var, val) \
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(*((volatile typeof(val) *)(&(var))) = (val))
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#endif
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#ifndef READ_ONCE
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#define READ_ONCE(var) (*((volatile typeof(var) *)(&(var))))
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#endif
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#ifndef likely
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#define likely(x) __builtin_expect(!!(x), 1)
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#endif
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#ifndef unlikely
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#define unlikely(x) __builtin_expect(!!(x), 0)
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#endif
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/* Are two types/vars the same type (ignoring qualifiers)? */
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#ifndef __same_type
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#define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b))
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#endif
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/* Compile time object size, -1 for unknown */
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#ifndef __compiletime_object_size
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# define __compiletime_object_size(obj) -1
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#endif
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#ifndef __compiletime_warning
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# define __compiletime_warning(message)
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#endif
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#ifndef __compiletime_error
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# define __compiletime_error(message)
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#endif
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#ifndef __compiletime_assert
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#define __compiletime_assert(condition, msg, prefix, suffix) \
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do { \
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extern void prefix ## suffix(void) __compiletime_error(msg); \
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if (!(condition)) \
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prefix ## suffix(); \
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} while (0)
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#endif
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#ifndef _compiletime_assert
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#define _compiletime_assert(condition, msg, prefix, suffix) \
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__compiletime_assert(condition, msg, prefix, suffix)
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#endif
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/**
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* compiletime_assert - break build and emit msg if condition is false
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* @condition: a compile-time constant condition to check
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* @msg: a message to emit if condition is false
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*
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* In tradition of POSIX assert, this macro will break the build if the
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* supplied condition is *false*, emitting the supplied error message if the
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* compiler has support to do so.
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*/
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#ifndef compiletime_assert
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#define compiletime_assert(condition, msg) \
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_compiletime_assert(condition, msg, __compiletime_assert_, __LINE__ - 1)
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#endif
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/**
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* BUILD_BUG_ON_MSG - break compile if a condition is true & emit supplied
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* error message.
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* @condition: the condition which the compiler should know is false.
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*
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* See BUILD_BUG_ON for description.
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*/
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#ifndef BUILD_BUG_ON_MSG
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#define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
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#endif
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#ifndef ALIGN
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#define __ALIGN_MASK(x, mask) (((x) + (mask)) & ~(mask))
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#define __ALIGN(x, a) __ALIGN_MASK(x, (typeof(x))(a) - 1)
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#define ALIGN(x, a) __ALIGN((x), (a))
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#endif
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#ifndef ALIGN_DOWN
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#define ALIGN_DOWN(x, a) __ALIGN((x) - ((a) - 1), (a))
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#endif
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#endif /* !COMPILER_H_ */
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// vim:fenc=utf-8:tw=75:et
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