1 #ifndef COMMON_H 2 #define COMMON_H 3 4 #include <libelf.h> 5 #include <elf.h> 6 7 #define unlikely(expr) __builtin_expect (expr, 0) 8 #define likely(expr) __builtin_expect (expr, 1) 9 10 #define MIN(a,b) ((a)<(b)?(a):(b)) /* no side effects in arguments allowed! */ 11 12 static inline int is_host_little(void) 13 { 14 short val = 0x10; 15 return ((char *)&val)[0] != 0; 16 } 17 18 static inline long switch_endianness(long val) 19 { 20 long newval; 21 ((char *)&newval)[3] = ((char *)&val)[0]; 22 ((char *)&newval)[2] = ((char *)&val)[1]; 23 ((char *)&newval)[1] = ((char *)&val)[2]; 24 ((char *)&newval)[0] = ((char *)&val)[3]; 25 return newval; 26 } 27 28 #endif/*COMMON_H*/ 29
