Re: [PATCH v2 08/11] Add stdio_exit_handler()

[Sebastian Huber <sebastian.huber@embedded-brains.de>]

On 17/05/2022 10:36, Takashi Yano wrote:
[...]
> After this commit, "ps | cat" outputs nothing in cygwin. However,
> just "ps" and "ls | cat" works. "stdbuf -o 0 ps | cat" also works.
> 
> I am not sure this is the right thing, however, I found the following
> patch solves the issue. It seems that initializing __stdio_exit_handler
> is missing.
> 
> diff --git a/newlib/libc/stdio/findfp.c b/newlib/libc/stdio/findfp.c
> index 19952d4e0..e759b5402 100644
> --- a/newlib/libc/stdio/findfp.c
> +++ b/newlib/libc/stdio/findfp.c
> @@ -63,6 +63,8 @@ struct _glue __sglue = {NULL, 3, &_GLOBAL_REENT->__sf[0]};
>   #endif
>   #endif
>   
> +static void stdio_exit_handler (void);
> +
>   #if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED))
>   _NOINLINE_STATIC void
>   #else
> @@ -109,6 +111,11 @@ std (FILE *ptr,
>     if (__stextmode (ptr->_file))
>       ptr->_flags |= __SCLE;
>   #endif
> +
> +  if (__stdio_exit_handler == NULL) {
> +    __sinit (_GLOBAL_REENT);
> +    __stdio_exit_handler = stdio_exit_handler;
> +  }
>   }
>   
>   static inline void
> 
> Could you please have a look?

Could you please check if this patch fixes the issue:

https://sourceware.org/pipermail/newlib/2022/019713.html

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