GNU bug report logs - #46111
Reverting fns.c hash function due to OpenBSD/SPARC64 compile breaking

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Message #14 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: bug-gnu-emacs <at> gnu.org, Philipp Stephani <p.stephani2 <at> gmail.com>,
 Ahmed Khanzada <me <at> enzu.ru>
Cc: 46111 <at> debbugs.gnu.org
Subject: Re: bug#46111: Reverting fns.c hash function due to OpenBSD/SPARC64
 compile breaking
Date: Tue, 26 Jan 2021 13:12:16 +0200

On January 26, 2021 11:36:25 AM GMT+02:00, Philipp Stephani <p.stephani2 <at> gmail.com> wrote:
> Am Di., 26. Jan. 2021 um 10:07 Uhr schrieb Ahmed Khanzada
> <me <at> enzu.ru>:
> >
> > I'm not an expert on C, OpenBSD, or SPARC64, but I did notice
> > emacs-current was not compiling.
> >
> > During a gmake, bootstrap-emacs would get a SIGBUS and fail. Running
> > gdb led me to the hash_string function where it seemed to be
> failing.
> 
> 
> The culprit might be commit be0f2de179235980b5409d5e77577207b93a4f12.
> I don't think that something like
> EMACS_UINT const *p   = (EMACS_UINT const *) ptr;
> is legal on any platform; it just happens to work on forgiving
> platforms such as x86-64.

It's definitely legal, as it doesn't violate any laws...

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