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Date: Mon, 22 Nov 2021 11:25:53 +0100
To: cygwin AT cygwin DOT com
Subject: Re: raise(-1) has stopped returning an error recently
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From: Corinna Vinschen via Cygwin <cygwin AT cygwin DOT com>
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On Nov 22 16:20, Duncan Roe wrote:
> Hi,
> 
> I stumbled across this when running 'make check' in the grep source directory.
> 
> test-raise failed when it didn't a few weeks ago.

Pretty unlikely.  This code didn;'t change for ages.  I just checked
against Cygwin 3.2.0 and it also returns success.

> #include <stdio.h>
> #include <signal.h>
> 
> int
> main (void)
> {
>   int retcod;
> 
>   retcod = raise (-1);
>   printf("raise(-1) returned %d\n", retcod);
> }

Thanks for the STC.  There are actually two long-standing problems,
one in raise, calling pthread_kill even for non-threaded processes,
one in pthread_kill, not checking the signal number.

I'll patch them right away.


Thanks,
Corinna

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