1 #include <linux/module.h> 2 3 #include "libgcc.h" 4 5 long long __ashrdi3(long long u, word_type b) 6 { 7 DWunion uu, w; 8 word_type bm; 9 10 if (b == 0) 11 return u; 12 13 uu.ll = u; 14 bm = 32 - b; 15 16 if (bm <= 0) { 17 /* w.s.high = 1..1 or 0..0 */ 18 w.s.high = 19 uu.s.high >> 31; 20 w.s.low = uu.s.high >> -bm; 21 } else { 22 const unsigned int carries = (unsigned int) uu.s.high << bm; 23 24 w.s.high = uu.s.high >> b; 25 w.s.low = ((unsigned int) uu.s.low >> b) | carries; 26 } 27 28 return w.ll; 29 } 30 31 EXPORT_SYMBOL(__ashrdi3); 32