diff options
Diffstat (limited to 'libc/ports/sysdeps/arm/feenablxcpt.c')
| -rw-r--r-- | libc/ports/sysdeps/arm/feenablxcpt.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/libc/ports/sysdeps/arm/feenablxcpt.c b/libc/ports/sysdeps/arm/feenablxcpt.c index baad4320c..e2e287b6e 100644 --- a/libc/ports/sysdeps/arm/feenablxcpt.c +++ b/libc/ports/sysdeps/arm/feenablxcpt.c @@ -39,6 +39,18 @@ feenableexcept (int excepts) _FPU_SETCW(new_exc); + if (excepts != 0) + { + /* VFPv3 and VFPv4 do not support trapping exceptions, so + test whether the relevant bits were set and fail if + not. */ + unsigned int temp; + _FPU_GETCW (temp); + if ((temp & (excepts << FE_EXCEPT_SHIFT)) + != (excepts << FE_EXCEPT_SHIFT)) + return -1; + } + return old_exc; } |