diff options
| author | Corinna Vinschen <corinna@vinschen.de> | 2021-03-24 13:06:58 +0300 |
|---|---|---|
| committer | Corinna Vinschen <corinna@vinschen.de> | 2021-04-13 13:55:34 +0300 |
| commit | cc19109af966331f76cc8b6fd7c92eec36dc2276 (patch) | |
| tree | a5f4fb790620ea6546535e7e5914fafc3ee28549 | |
| parent | 3b22d722555ab88ff4a9181220bbfc3fa59b94ee (diff) | |
Cygwin: don't export _feinitialise from newlib
Use the more official fesetenv(FE_DFL_ENV) from _dll_crt0, thus
allowing to drop the _feinitialise declaration from fenv.h.
Provide a no-op _feinitialise in Cygwin as exportable symbol for really
old applications when _feinitialise was called from mainCRTStartup in
crt0.o.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
| -rw-r--r-- | newlib/libc/machine/shared_x86/sys/fenv.h | 5 | ||||
| -rw-r--r-- | newlib/libm/machine/shared_x86/fenv.c | 7 | ||||
| -rw-r--r-- | winsup/cygwin/Makefile.in | 1 | ||||
| -rw-r--r-- | winsup/cygwin/dcrt0.cc | 2 | ||||
| -rw-r--r-- | winsup/cygwin/fenv.c | 5 |
5 files changed, 8 insertions, 12 deletions
diff --git a/newlib/libc/machine/shared_x86/sys/fenv.h b/newlib/libc/machine/shared_x86/sys/fenv.h index e0408fe5b..243cac27a 100644 --- a/newlib/libc/machine/shared_x86/sys/fenv.h +++ b/newlib/libc/machine/shared_x86/sys/fenv.h @@ -170,11 +170,6 @@ int fegetprec (void); int fesetprec (int __prec); #endif -#ifdef __INSIDE_CYGWIN__ -/* Cygwin-internal ONLY. */ -extern void _feinitialise (); -#endif - #endif /* __CYGWIN__ */ #ifdef __cplusplus diff --git a/newlib/libm/machine/shared_x86/fenv.c b/newlib/libm/machine/shared_x86/fenv.c index 8d1f1ad7f..ccc08e2d8 100644 --- a/newlib/libm/machine/shared_x86/fenv.c +++ b/newlib/libm/machine/shared_x86/fenv.c @@ -63,10 +63,8 @@ static inline bool use_sse(void) return false; } -#ifndef __CYGWIN__ /* forward declaration */ static void _feinitialise (void); -#endif /* This function enables traps for each of the exceptions as indicated by the parameter except. The individual exceptions are described in @@ -451,10 +449,7 @@ fesetprec (int prec) #endif /* Set up the FPU and SSE environment at the start of execution. */ -#ifndef __CYGWIN__ -static -#endif -void +static void _feinitialise (void) { extern fenv_t __fe_dfl_env; diff --git a/winsup/cygwin/Makefile.in b/winsup/cygwin/Makefile.in index ff6798867..73d9b37fd 100644 --- a/winsup/cygwin/Makefile.in +++ b/winsup/cygwin/Makefile.in @@ -288,6 +288,7 @@ DLL_OFILES:= \ exec.o \ external.o \ fcntl.o \ + fenv.o \ fhandler.o \ fhandler_clipboard.o \ fhandler_console.o \ diff --git a/winsup/cygwin/dcrt0.cc b/winsup/cygwin/dcrt0.cc index 810017956..d4a08d18b 100644 --- a/winsup/cygwin/dcrt0.cc +++ b/winsup/cygwin/dcrt0.cc @@ -1085,7 +1085,7 @@ _dll_crt0 () fork_info->alloc_stack (); #endif - _feinitialise (); + fesetenv (FE_DFL_ENV); _main_tls = &_my_tls; _main_tls->call ((DWORD (*) (void *, void *)) dll_crt0_1, NULL); } diff --git a/winsup/cygwin/fenv.c b/winsup/cygwin/fenv.c new file mode 100644 index 000000000..80f7cc52c --- /dev/null +++ b/winsup/cygwin/fenv.c @@ -0,0 +1,5 @@ +/* no-op function as entry point for applications built between + 2010-09-11 and 2011-03-16. That's the timeframe of _feinitialise + being called from mainCRTStartup in crt0.o. */ +void _feinitialise (void) +{} |