switch-coreboot/src/include/stdlib.h

#ifndef STDLIB_H
#define STDLIB_H

#include <stddef.h>

#define min(a,b) MIN((a),(b))
#define max(a,b) MAX((a),(b))

void *memalign(size_t boundary, size_t size);
void *malloc(size_t size);
/* We never free memory */
static inline void free(void *ptr) {}

#ifndef __ROMCC__
static inline unsigned long div_round_up(unsigned int n, unsigned int d)
{
	return (n + d - 1) / d;
}

/*
 * Divide positive or negative dividend by positive divisor and round
 * to closest integer. Result is undefined for negative divisors and
 * for negative dividends if the divisor variable type is unsigned.
 */
#define DIV_ROUND_CLOSEST(x, divisor)(			\
{							\
	typeof(x) __x = x;				\
	typeof(divisor) __d = divisor;			\
	(((typeof(x))-1) > 0 ||				\
	 ((typeof(divisor))-1) > 0 || (__x) > 0) ?	\
		(((__x) + ((__d) / 2)) / (__d)) :	\
		(((__x) - ((__d) / 2)) / (__d));	\
}							\
)
#endif


#endif /* STDLIB_H */