#ifndef NSTACK_UTIL_H

#define NSTACK_UTIL_H

#ifndef __GLOBL1

#define __GLOBL1(sym) __asm__(".globl " #sym)

#define __GLOBL(sym) __GLOBL1(sym)

#endif

#ifndef __used

#define __used __attribute__((__used__))

#endif

#ifndef __unused

#define __unused __attribute__((__unused__))

#endif

#ifndef __section

#define __section(x) __attribute__((__section__(x)))

#endif

#define __constructor __attribute__((constructor))

#define __destructor __attribute__((destructor))

/**

* Returns a container of ptr, which is a element in some struct.

* @param ptr is a pointer to a element in struct.

* @param type is the type of the container struct.

* @param member is the name of the ptr in container struct.

* @return Pointer to the container of ptr.

*/

#define container_of(ptr, type, member) \

((type *) ((uint8_t *) (ptr) -offsetof(type, member)))

#define num_elem(x) (sizeof(x) / sizeof(*(x)))

static inline int imax(int a, int b)

{

return (a > b ? a : b);

}

static inline int imin(int a, int b)

{

return (a < b ? a : b);

}

static inline long lmax(long a, long b)

{

return (a > b ? a : b);

}

static inline long lmin(long a, long b)

{

return (a < b ? a : b);

}

static inline unsigned int max(unsigned int a, unsigned int b)

{

return (a > b ? a : b);

}

static inline unsigned int min(unsigned int a, unsigned int b)

{

return (a < b ? a : b);

}

static inline unsigned long ulmax(unsigned long a, unsigned long b)

{

return (a > b ? a : b);

}

static inline unsigned long ulmin(unsigned long a, unsigned long b)

{

return (a < b ? a : b);

}

static inline unsigned int smin(size_t a, size_t b)

{

return (a < b ? a : b);

}

static inline unsigned int uround_up(unsigned n, unsigned s)

{

return ((n + s - 1) / s) * s;

}

#endif /* NSTACK_UTIL */