From: Andreas Schwab <schwab@linux-m68k.org>
To: Joseph Myers <joseph@codesourcery.com>
Cc: libc-alpha@sourceware.org
Subject: Re: Fix iconv build with GCC mainline
Date: Mon, 23 Aug 2021 18:09:43 +0200 [thread overview]
Message-ID: <87eeakrvlk.fsf@igel.home> (raw)
In-Reply-To: <alpine.DEB.2.22.394.2108191655530.350860@digraph.polyomino.org.uk> (Joseph Myers's message of "Thu, 19 Aug 2021 16:56:19 +0000")
On Aug 19 2021, Joseph Myers wrote:
> Current GCC mainline produces -Wstringop-overflow errors building some
> iconv converters, as discussed at
> <https://gcc.gnu.org/pipermail/gcc/2021-July/236943.html>. Add an
> __builtin_unreachable call as suggested so that GCC can see the case
> that would involve a buffer overflow is unreachable; because the
> unreachability depends on valid conversion state being passed into the
> function from previous conversion steps, it's not something the
> compiler can reasonably deduce on its own.
Ok.
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1
"And now for something completely different."
prev parent reply other threads:[~2021-08-23 16:10 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-19 16:56 Fix iconv build with GCC mainline Joseph Myers
2021-08-23 15:46 ` Ping " Joseph Myers
2021-08-23 16:09 ` Andreas Schwab [this message]
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