Re: [PATCH] man2/clone.2: clarify that CLONE_CLEAR_SIGHAND does not affect SIG_IGN

[Alejandro Colomar <alx@kernel.org>]

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Hello Max,

On Mon, Oct 30, 2023 at 01:58:35PM +0100, Max Kellermann wrote:
> The old wording was ambiguous, but it is important to know that
> signals that were set to SIG_IGN will not be restored to SIG_DFL.
> 
> Signed-off-by: Max Kellermann <max.kellermann@ionos.com>

Would you mind sending an example program that proves this?

Thanks,
Alex

> ---
>  man2/clone.2 | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/man2/clone.2 b/man2/clone.2
> index 4a75b557b..deb4bdb5b 100644
> --- a/man2/clone.2
> +++ b/man2/clone.2
> @@ -455,7 +455,8 @@ flag is also employed.)
>  By default, signal dispositions in the child thread are the same as
>  in the parent.
>  If this flag is specified,
> -then all signals that are handled in the parent
> +then all signals that are handled in the parent (and not set to
> +.BR SIG_IGN )
>  are reset to their default dispositions
>  .RB ( SIG_DFL )
>  in the child.
> -- 
> 2.39.2
> 

-- 
<https://www.alejandro-colomar.es/>

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