From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Andy Moreton Newsgroups: gmane.emacs.bugs Subject: bug#45303: #45303 [feature/native-comp] building error on Windows Date: Sat, 19 Dec 2020 21:39:58 +0000 Message-ID: <86v9cxqxu9.fsf@gmail.com> References: <83k0te6c7i.fsf@gnu.org> <86pn35n9ry.fsf@gmail.com> <83lfdtu60h.fsf@gnu.org> <86h7ohogyx.fsf@gmail.com> <83ft41u26q.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="14132"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (windows-nt) To: 45303@debbugs.gnu.org Cancel-Lock: sha1:3ezEDWrFww76JO1tDKB/ZoFZUNE= Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Dec 19 22:42:31 2020 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kqjzi-0002D4-Of for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 19 Dec 2020 22:42:30 +0100 Original-Received: from localhost ([::1]:52184 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kqjyQ-0001SE-BL for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 19 Dec 2020 16:41:10 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:37968) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kqjyI-0001Ru-IW for bug-gnu-emacs@gnu.org; Sat, 19 Dec 2020 16:41:02 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:60008) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kqjyI-0002Cr-Ap for bug-gnu-emacs@gnu.org; Sat, 19 Dec 2020 16:41:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1kqjyI-00086g-9C for bug-gnu-emacs@gnu.org; Sat, 19 Dec 2020 16:41:02 -0500 X-Loop: help-debbugs@gnu.org In-Reply-To: Resent-From: Andy Moreton Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 19 Dec 2020 21:41:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 45303 X-GNU-PR-Package: emacs X-Debbugs-Original-To: bug-gnu-emacs@gnu.org Original-Received: via spool by submit@debbugs.gnu.org id=B.160841401031090 (code B ref -1); Sat, 19 Dec 2020 21:41:02 +0000 Original-Received: (at submit) by debbugs.gnu.org; 19 Dec 2020 21:40:10 +0000 Original-Received: from localhost ([127.0.0.1]:43321 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kqjxS-00085O-7G for submit@debbugs.gnu.org; Sat, 19 Dec 2020 16:40:10 -0500 Original-Received: from lists.gnu.org ([209.51.188.17]:46270) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kqjxP-00085D-41 for submit@debbugs.gnu.org; Sat, 19 Dec 2020 16:40:08 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:37654) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kqjxO-0001Ho-SM for bug-gnu-emacs@gnu.org; Sat, 19 Dec 2020 16:40:06 -0500 Original-Received: from ciao.gmane.io ([116.202.254.214]:42560) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kqjxN-0001mW-FO for bug-gnu-emacs@gnu.org; Sat, 19 Dec 2020 16:40:06 -0500 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1kqjxL-00015H-0X for bug-gnu-emacs@gnu.org; Sat, 19 Dec 2020 22:40:03 +0100 X-Injected-Via-Gmane: http://gmane.org/ Received-SPF: pass client-ip=116.202.254.214; envelope-from=geb-bug-gnu-emacs@m.gmane-mx.org; helo=ciao.gmane.io X-Spam_score_int: 5 X-Spam_score: 0.5 X-Spam_bar: / X-Spam_report: (0.5 / 5.0 requ) BAYES_00=-1.9, DKIM_ADSP_CUSTOM_MED=0.001, FORGED_GMAIL_RCVD=1, FREEMAIL_FORGED_FROMDOMAIN=0.25, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.249, NML_ADSP_CUSTOM_MED=0.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:196433 Archived-At: On Sat 19 Dec 2020, Eli Zaretskii wrote: >> From: Andy Moreton >> Date: Sat, 19 Dec 2020 17:15:02 +0000 >> >> > I must be missing something, because I don't see strsignal used on >> > master in the MinGW build at all. Moreover, Gnulib's strsignal.c is >> > not even in lib/. We call sigdescr_np instead. So I wonder how did >> > you see that the Gnulib replacement for strsignal is used on master in >> > the Windows build. >> >> Entirely possible that I have misunderstood something from reading >> sources and grepping (the gnulib gyrations are hard to follow). >> >> The emacs source calls strsignal, and something provides it (whether via >> a macro replacement or a linkable symbol). The only difference I could >> see was the configure test, as noted above. > > The ultimate test is this: > > gdb ./emacs.exe > GNU gdb (GDB) 10.1 > Copyright (C) 2020 Free Software Foundation, Inc. > ... > (gdb) rbreak strsignal > > On my system, I see just this: > > Breakpoint 2 at 0x119b88b: file sysdep.c, line 2617. > const char *safe_strsignal(int); Agreed, but emacs has to actually link before I can run it under GDB. >> I see that src/syssignal.h has a replacement macro: >> >> #ifndef HAVE_STRSIGNAL >> # define strsignal(sig) safe_strsignal (sig) >> #endif >> >> So is the problem that on the native branch the configure test succeeds >> and sets HAVE_STRSIGNAL, resulting in trying to link the wrong symbol ? > > Possibly. The question is, how come the test succeeds? Can you look > in libjccjit.a with "nm -A" and see if it exports strsignal? /c/home/ajm/tmp> nm -A /mingw32/lib/libgccjit.dll.a | grep strsignal C:/msys64/mingw32/lib/libgccjit.dll.a:d025440.o:00000000 I __imp__strsignal C:/msys64/mingw32/lib/libgccjit.dll.a:d025440.o:00000000 T _strsignal /c/home/ajm/tmp> nm -A /mingw64/lib/libgccjit.dll.a | grep strsignal C:/msys64/mingw64/lib/libgccjit.dll.a:d025724.o:0000000000000000 I __imp_strsignal C:/msys64/mingw64/lib/libgccjit.dll.a:d025724.o:0000000000000000 T strsignal Yes, it would appear so. AndyM