diff options
Diffstat (limited to 'sysdeps/arm/fpu_control.h')
| -rw-r--r-- | sysdeps/arm/fpu_control.h | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/sysdeps/arm/fpu_control.h b/sysdeps/arm/fpu_control.h index 0fe532a797..6b1b176eae 100644 --- a/sysdeps/arm/fpu_control.h +++ b/sysdeps/arm/fpu_control.h @@ -1,5 +1,5 @@ /* FPU control word definitions. ARM VFP version. - Copyright (C) 2004-2016 Free Software Foundation, Inc. + Copyright (C) 2004-2018 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -53,12 +53,19 @@ extern fpu_control_t __fpu_control; typedef unsigned int fpu_control_t; /* Macros for accessing the hardware control word. */ +#ifdef __SOFTFP__ /* This is fmrx %0, fpscr. */ -#define _FPU_GETCW(cw) \ +# define _FPU_GETCW(cw) \ __asm__ __volatile__ ("mrc p10, 7, %0, cr1, cr0, 0" : "=r" (cw)) /* This is fmxr fpscr, %0. */ -#define _FPU_SETCW(cw) \ +# define _FPU_SETCW(cw) \ __asm__ __volatile__ ("mcr p10, 7, %0, cr1, cr0, 0" : : "r" (cw)) +#else +# define _FPU_GETCW(cw) \ + __asm__ __volatile__ ("vmrs %0, fpscr" : "=r" (cw)) +# define _FPU_SETCW(cw) \ + __asm__ __volatile__ ("vmsr fpscr, %0" : : "r" (cw)) +#endif /* Default control word set at startup. */ extern fpu_control_t __fpu_control; |