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Diffstat (limited to 'sysdeps/arm/feenablxcpt.c')
-rw-r--r--sysdeps/arm/feenablxcpt.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/sysdeps/arm/feenablxcpt.c b/sysdeps/arm/feenablxcpt.c
index afd8943..f54ca6e 100644
--- a/sysdeps/arm/feenablxcpt.c
+++ b/sysdeps/arm/feenablxcpt.c
@@ -25,7 +25,7 @@
int
feenableexcept (int excepts)
{
- fpu_control_t fpscr, new_fpscr;
+ fpu_control_t fpscr, new_fpscr, updated_fpscr;
/* Fail if a VFP unit isn't present. */
if (!ARM_HAVE_VFP)
@@ -35,15 +35,15 @@ feenableexcept (int excepts)
excepts &= FE_ALL_EXCEPT;
new_fpscr = fpscr | (excepts << FE_EXCEPT_SHIFT);
- _FPU_SETCW (new_fpscr);
-
- if (excepts != 0)
+ if (new_fpscr != fpscr)
{
+ _FPU_SETCW (new_fpscr);
+
/* Not all VFP architectures support trapping exceptions, so
test whether the relevant bits were set and fail if not. */
- _FPU_GETCW (new_fpscr);
- if ((new_fpscr & (excepts << FE_EXCEPT_SHIFT))
- != (excepts << FE_EXCEPT_SHIFT))
+ _FPU_GETCW (updated_fpscr);
+
+ if (new_fpscr & ~updated_fpscr)
return -1;
}