GNU bug report logs -
#58291
29.0.50; MacOS compilation warning for possibly unitialized use in emacs.c
Previous Next
Reported by: Gerd Möllmann <gerd.moellmann <at> gmail.com>
Date: Tue, 4 Oct 2022 15:27:01 UTC
Severity: normal
Found in version 29.0.50
Done: Stefan Kangas <stefankangas <at> gmail.com>
Bug is archived. No further changes may be made.
Full log
View this message in rfc822 format
[Message part 1 (text/plain, inline)]
Your bug report
#58291: 29.0.50; MacOS compilation warning for possibly unitialized use in emacs.c
which was filed against the emacs package, has been closed.
The explanation is attached below, along with your original report.
If you require more details, please reply to 58291 <at> debbugs.gnu.org.
--
58291: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=58291
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems
[Message part 2 (message/rfc822, inline)]
Lars Ingebrigtsen <larsi <at> gnus.org> writes:
> Gerd Möllmann <gerd.moellmann <at> gmail.com> writes:
>
>> This is latest master as of writing this. When compiling emacs, I see
>>
>> emacs.c:899:7: warning: variable 'bufsize' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized]
>> if (!(emacs_executable && *emacs_executable))
>> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> emacs.c:964:7: note: uninitialized use occurs here
>> if (bufsize < needed)
>> ^~~~~~~
>
> I guess this might be related to Andreas' recent fix? Added to the CCs.
This is fixed on emacs-28 and merged to master. Closing.
[Message part 3 (message/rfc822, inline)]
In GNU Emacs 29.0.50 (build 5, aarch64-apple-darwin21.6.0, NS
appkit-2113.60 Version 12.6 (Build 21G115)) of 2022-10-04 built on
Mini.fritz.box
Repository revision: 849b7756fd31a69791e67dfe010b1e10f0168c83
Repository branch: master
Windowing system distributor 'Apple', version 10.3.2113
System Description: macOS 12.6
This is latest master as of writing this. When compiling emacs, I see
emacs.c:899:7: warning: variable 'bufsize' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized]
if (!(emacs_executable && *emacs_executable))
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
emacs.c:964:7: note: uninitialized use occurs here
if (bufsize < needed)
^~~~~~~
emacs.c:899:3: note: remove the 'if' if its condition is always false
if (!(emacs_executable && *emacs_executable))
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
emacs.c:928:3: note: variable 'bufsize' is declared here
ptrdiff_t bufsize = exenamelen + strlen (suffix) + 1;
^
emacs.c:1755:17: warning: 'fork' is deprecated: Use posix_spawn or fork [-Wdeprecated-declarations]
f = fork (); /* in orig */
This bug report was last modified 2 years and 281 days ago.
Previous Next
GNU bug tracking system
Copyright (C) 1999 Darren O. Benham,
1997,2003 nCipher Corporation Ltd,
1994-97 Ian Jackson.