From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: Suspicious warning in W64 build Date: Sat, 16 Sep 2017 10:45:46 +0300 Message-ID: <83h8w3krx1.fsf@gnu.org> References: <1017454172.910810.1504618695244@mail.libero.it> <1146932094.13821.1504798935795@mail.libero.it> <83mv66z66p.fsf@gnu.org> <102a4c21-c275-c73e-ec53-0d85975dc968@cs.ucla.edu> <83a825znuf.fsf@gnu.org> <831snhzkgw.fsf@gnu.org> <837ex9x7vf.fsf@gnu.org> <83tw0cwcle.fsf@gnu.org> <83h8wcw3td.fsf@gnu.org> <83377vx3d0.fsf@gnu.org> <83ingnq01t.fsf@gnu.org> <83fubrpxsv.fsf@gnu.org> <83r2v9masw.fsf@gnu.org> <86a81xrndl.fsf@gmail.com> <83a81wmijy.fsf@gnu.org> <83vakkklto.fsf@gnu.org> <83poarlrcj.fsf@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1505547980 10152 195.159.176.226 (16 Sep 2017 07:46:20 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sat, 16 Sep 2017 07:46:20 +0000 (UTC) Cc: andrewjmoreton@gmail.com, emacs-devel@gnu.org To: Fabrice Popineau Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sat Sep 16 09:46:14 2017 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dt7nq-0002SC-03 for ged-emacs-devel@m.gmane.org; Sat, 16 Sep 2017 09:46:14 +0200 Original-Received: from localhost ([::1]:56305 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dt7nx-0002IJ-B8 for ged-emacs-devel@m.gmane.org; Sat, 16 Sep 2017 03:46:21 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:57800) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dt7nM-0002I9-4w for emacs-devel@gnu.org; Sat, 16 Sep 2017 03:45:45 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dt7nI-0004ya-5g for emacs-devel@gnu.org; Sat, 16 Sep 2017 03:45:44 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:59037) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dt7nH-0004yU-SK; Sat, 16 Sep 2017 03:45:39 -0400 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:4506 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1dt7nH-00044x-4v; Sat, 16 Sep 2017 03:45:39 -0400 In-reply-to: (message from Fabrice Popineau on Fri, 15 Sep 2017 23:02:45 +0200) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2001:4830:134:3::e X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:218345 Archived-At: > From: Fabrice Popineau > Date: Fri, 15 Sep 2017 23:02:45 +0200 > Cc: Andy Moreton , Emacs developers > > Remaining warnings : > > - indent.c:scan_for_column() -> you reported it > > - search.c:Freplace_match() > > ../../emacs/src/search.c: In function 'Freplace_match': > ../../emacs/src/search.c:2621:15: warning: argument 1 value '2305843009213693951' exceeds maximum > object size 2147483647 [-Walloc-size-larger-than=] > substed = xmalloc (substed_alloc_size); > ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > In file included from ../../emacs/src/search.c:24:0: > ../../emacs/src/lisp.h:4440:14: note: in a call to allocation function 'xmalloc' declared here > extern void *xmalloc (size_t) ATTRIBUTE_MALLOC_SIZE ((1)); > ^~~~~~~ I already reported this, it looks like a bug in Gnulib's manywarnings.m4. > - data.c: > > ../../emacs/src/data.c: In function 'minmax_driver': > ../../emacs/src/data.c:3022:9: warning: 'accum.i' may be used uninitialized in this function > [-Wmaybe-uninitialized] > return accum; > ^~~~~ So now even eassume is not enough? Anyway, should be fixed now. > - eval.c > > ../../emacs/src/eval.c: In function 'internal_catch': > ../../emacs/src/eval.c:1431:19: warning: variable 'c' might be clobbered by 'longjmp' or 'vfork' [-Wclobbered] > struct handler *c = handlerlist->nextfree; > ^ > ../../emacs/src/eval.c: In function 'internal_condition_case': > ../../emacs/src/eval.c:1431:19: warning: variable 'c' might be clobbered by 'longjmp' or 'vfork' [-Wclobbered] > ../../emacs/src/eval.c: In function 'internal_condition_case_1': > ../../emacs/src/eval.c:1431:19: warning: variable 'c' might be clobbered by 'longjmp' or 'vfork' [-Wclobbered] > ../../emacs/src/eval.c: In function 'internal_condition_case_2': > ../../emacs/src/eval.c:1431:19: warning: variable 'c' might be clobbered by 'longjmp' or 'vfork' [-Wclobbered] > ../../emacs/src/eval.c: In function 'internal_condition_case_n': > ../../emacs/src/eval.c:1431:19: warning: variable 'c' might be clobbered by 'longjmp' or 'vfork' [-Wclobbered] > ../../emacs/src/eval.c: In function 'internal_catch.constprop': > ../../emacs/src/eval.c:1431:19: warning: variable 'c' might be clobbered by 'longjmp' or 'vfork' [-Wclobbered] Already reported. > - w32.c > > ../../emacs/src/w32.c:7551:1: warning: no previous prototype for 'sys_strerror' [-Wmissing-prototypes] > sys_strerror (int error_no) > ^~~~~~~~~~~~ Already reported; I need the MinGW64 users figure why what works for mingw.org doesn't for MinGW64. See my response to Richard.