include/compiler/gcc.h

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#ifndef COMPILER_GCC_H_INCLUDED
#define COMPILER_GCC_H_INCLUDED

#define __noreturn __attribute__((noreturn))

#define __must_check __attribute__((warn_unused_result))

#define __packed __attribute__((packed))

#define __section(name) __attribute__((section(name)))

#define __weak __attribute__((weak))

#define __used __attribute__((used))

#define __always_inline inline __attribute__((always_inline))

#define __printf_format(fmt_index, first_arg_index)     \
        __attribute__((format(printf, fmt_index, first_arg_index)))

#define likely(exp)     __builtin_expect(!!(exp), 1)

#define unlikely(exp)   __builtin_expect(!!(exp), 0)

#define is_constant(exp) __builtin_constant_p(exp)

#define barrier()       asm volatile("" ::: "memory")

#define count_leading_zeroes(x) __builtin_clz(x)

#define min(x,y)                                \
        ({                                      \
                typeof(x) __x = (x);            \
                typeof(y) __y = (y);            \
                __x < __y ? __x : __y;          \
        })

#define max(x,y)                                \
        ({                                      \
                typeof(x) __x = (x);            \
                typeof(y) __y = (y);            \
                __x > __y ? __x : __y;          \
        })

/* Pull in arch-specific definitions and overrides */
#include <arch/compiler-gcc.h>

#endif /* COMPILER_GCC_H_INCLUDED */

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