GNU bug report logs - #45214
guile segfaults on 32-bit big-endian targets

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Message #26 received at submit <at> debbugs.gnu.org (full text, mbox):

From: John David Anglin <dave.anglin <at> bell.net>
To: John Paul Adrian Glaubitz <glaubitz <at> physik.fu-berlin.de>, bug-guile <at> gnu.org
Cc: Helge Deller <deller <at> gmx.de>,
 Michael Karcher <debian <at> mkarcher.dialup.fu-berlin.de>,
 Andreas Schwab <schwab <at> linux-m68k.org>
Subject: Re: guile segfaults on 32-bit big-endian targets
Date: Sat, 12 Dec 2020 18:22:26 -0500

On 2020-12-12 5:47 p.m., John Paul Adrian Glaubitz wrote:
> And m68k and powerpc most likely.
This could also be a bug on 32-bit targets:
  CC       libguile_3.0_la-hash.lo
../../guile/libguile/hash.c: In function 'narrow_string_hash':
../../guile/libguile/hash.c:118:34: warning: left shift count >= width of type [
-Wshift-count-overflow]
  118 |       ret = (((unsigned long) c) << 32) | b;
\
      |                                  ^~
../../guile/libguile/hash.c:128:3: note: in expansion of macro 'JENKINS_LOOKUP3_
HASHWORD2'
  128 |   JENKINS_LOOKUP3_HASHWORD2 (str, len, ret);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~
../../guile/libguile/hash.c: In function 'wide_string_hash':
../../guile/libguile/hash.c:118:34: warning: left shift count >= width of type [-Wshift-count-overflow]
  118 |       ret = (((unsigned long) c) << 32) | b;                            \
      |                                  ^~

Regards,
Dave

-- 
John David Anglin  dave.anglin <at> bell.net

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