[PATCH v2] newlib: change static to __fenv_static for fe{enable,disable,get}except

[Richard Earnshaw (lists)]

On 03/07/2025 19:59, Radek Barton wrote:
> Hello.
> 
> Sending the version with the __cygwin_fenv_static suggestion applied.
> 

This looks OK to me. Corinna, is there anything you want to add?

R.

> Radek
> 
> ---
> From 5c708ec741b4c4dd7676b7030451bc08607ce352 Mon Sep 17 00:00:00 2001
> From: =?UTF-8?q?Radek=20Barto=C5=88?= <radek.barton@microsoft.com>
> Date: Thu, 3 Jul 2025 12:00:22 +0200
> Subject: [PATCH v2] newlib: change static to __fenv_static for
>  fe{enable,disable,get}except
> MIME-Version: 1.0
> Content-Type: text/plain; charset=UTF-8
> Content-Transfer-Encoding: 8bit
> 
> This fixes undefined references to those functions when building cygwin1.dll for AArch64.
> 
> Signed-off-by: Radek Bartoň <radek.barton@microsoft.com>
> ---
>  newlib/libc/machine/aarch64/sys/fenv.h | 16 ++++++++++++----
>  1 file changed, 12 insertions(+), 4 deletions(-)
> 
> diff --git a/newlib/libc/machine/aarch64/sys/fenv.h b/newlib/libc/machine/aarch64/sys/fenv.h
> index 6b0879269..1f97791a7 100644
> --- a/newlib/libc/machine/aarch64/sys/fenv.h
> +++ b/newlib/libc/machine/aarch64/sys/fenv.h
> @@ -80,9 +80,17 @@ extern const fenv_t	*_fe_dfl_env;
>  
>  #if __BSD_VISIBLE
>  
> -/* We currently provide no external definitions of the functions below. */
> +/* We currently provide no external definitions of the functions below
> +   except of for Cygwin where those functions are exported by
> +   winsup/cygwin/cygwin.din. */
> +
> +#ifdef __CYGWIN__
> +#define __cygwin_fenv_static __fenv_static
> +#else
> +#define __cygwin_fenv_static static
> +#endif
>  
> -static inline int
> +__cygwin_fenv_static inline int
>  feenableexcept(int __mask)
>  {
>  	fenv_t __old_r, __new_r;
> @@ -93,7 +101,7 @@ feenableexcept(int __mask)
>  	return ((__old_r >> _FPUSW_SHIFT) & FE_ALL_EXCEPT);
>  }
>  
> -static inline int
> +__cygwin_fenv_static inline int
>  fedisableexcept(int __mask)
>  {
>  	fenv_t __old_r, __new_r;
> @@ -104,7 +112,7 @@ fedisableexcept(int __mask)
>  	return ((__old_r >> _FPUSW_SHIFT) & FE_ALL_EXCEPT);
>  }
>  
> -static inline int
> +__cygwin_fenv_static inline int
>  fegetexcept(void)
>  {
>  	fenv_t __r;