1 #include <linux/types.h> 2 #include <linux/errno.h> 3 #include <asm/uaccess.h> 4 5 #include "soft-fp.h" 6 #include "double.h" 7 #include "single.h" 8 9 int 10 stfs(void *frS, void *ea) 11 { 12 FP_DECL_D(A); 13 FP_DECL_S(R); 14 float f; 15 int err; 16 17 #ifdef DEBUG 18 printk("%s: S %p, ea %p\n", __func__, frS, ea); 19 #endif 20 21 __FP_UNPACK_D(A, frS); 22 23 #ifdef DEBUG 24 printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c); 25 #endif 26 27 FP_CONV(S, D, 1, 2, R, A); 28 29 #ifdef DEBUG 30 printk("R: %ld %lu %ld (%ld)\n", R_s, R_f, R_e, R_c); 31 #endif 32 33 err = _FP_PACK_CANONICAL(S, 1, R); 34 if (!err || !__FPU_TRAP_P(err)) { 35 __FP_PACK_RAW_1(S, &f, R); 36 if (copy_to_user(ea, &f, sizeof(float))) 37 return -EFAULT; 38 } 39 40 return err; 41 } 42