#pragma once

//#include "compiler.h"

#include <stdint.h>
#include <sys/types.h>

void die(const char* errstr, ...)
  __attribute__((noreturn, __format__(__printf__, 1, 2)));
void edie(const char* errstr, ...)
  __attribute__((noreturn, __format__(__printf__, 1, 2)));

size_t xread(int fd, void *buf, size_t n);
void xwrite(int fd, const void *buf, size_t n);

uint64_t now_usec(void);

//int setaffinity(int c);

#define assert(x)	_assert(x, __FILE__, __LINE__)
#define _assert(x, f, l) do { 						\
	if (!(x))							\
		errx(-1, "assert failed: " #x " (%s:%d)\n", f, l);	\
	} while (0)


#define		STAT_OMIT_NLINK		0
#define fstatx(a, b, c)		fstat(a, b)

#if !defined(XV6_USER)
ulong rdtsc(void);
#define		EP(x)		"./" x
#else
#define		EP(x)		"/bin/" x
#endif