diff options
Diffstat (limited to 'winsup/cygwin/fenv.cc')
| -rw-r--r-- | winsup/cygwin/fenv.cc | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/winsup/cygwin/fenv.cc b/winsup/cygwin/fenv.cc index 396f98a..a2c8359 100644 --- a/winsup/cygwin/fenv.cc +++ b/winsup/cygwin/fenv.cc @@ -420,7 +420,7 @@ fesetprec (int prec) /* Set up the FPU and SSE environment at the start of execution. */ void -_feinitialise (void) +_feinitialise (bool pre_main) { unsigned int edx, eax; @@ -442,14 +442,18 @@ _feinitialise (void) if (use_sse) __asm__ volatile ("ldmxcsr %0" :: "m" (mxcsr)); - /* Setup unmasked environment, but leave __FE_DENORM masked. */ - feenableexcept (FE_ALL_EXCEPT); - fegetenv (&fe_nomask_env); + if (pre_main) + { + /* Setup unmasked environment, but leave __FE_DENORM masked. */ + feenableexcept (FE_ALL_EXCEPT); + fegetenv (&fe_nomask_env); - /* Restore default exception masking (all masked). */ - fedisableexcept (FE_ALL_EXCEPT); + /* Restore default exception masking (all masked). */ + fedisableexcept (FE_ALL_EXCEPT); - /* Finally cache state as default environment. */ - fegetenv (&fe_dfl_env); + /* Finally cache state as default environment. */ + fegetenv (&fe_dfl_env); + } + else + fedisableexcept (FE_ALL_EXCEPT); } - |