Received: (at 81610) by debbugs.gnu.org; 29 Aug 2026 10:00:13 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sat Aug 29 06:00:12 2026 Received: from localhost ([127.0.0.1]:54837 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1x0Fr7-0000zc-3m for submit <at> debbugs.gnu.org; Sat, 29 Aug 2026 06:00:12 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:58522) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1x0Fr1-0000ti-Q1 for 81610 <at> debbugs.gnu.org; Sat, 29 Aug 2026 06:00:06 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1x0Fqw-0003Xb-As; Sat, 29 Aug 2026 05:59:58 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=ncsLe5P3+T+NLogKxwQSwHQqMAlKYSn1VQt2fSagKc8=; b=V476X0kM2TgT z6ute2blc6iWghOFm0bPUPP0dRZqpZnAYE3PkDYIREO/crbw+lcMxhhMjb7HU0ACW0kMVvgETAdgv gDEFmfHXAmc7inCeFHiZZTLXJ5KNhl8F7B+HvQd+cxkepxDM4D0MSGt1imugMSzO7e6m69NhKsYRh 1JZ5ZY9eqvN06SHLPTODp1NVbyyT7aXQQX11VntXpcjAkqlSl5JceASFrhOhvdZa890fzkGsXJxKa xEcCTkoCg2HxxmGupgHLDPYYWtiNnQBF93F6QGjZQd+y/3GuRHAMhejkXcfuiiAgZNo8UsEfxOnkI EaKOKJokY1CKQFsV7KBlrQ==; Date: Sat, 29 Aug 2026 12:59:55 +0300 Message-Id: <86qzjhb61w.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: alan@HIDDEN, Yavor Doganov <yavor@HIDDEN> In-Reply-To: <87se4ezluz.GNU's_not_UNIX!-yavor@HIDDEN> (message from Yavor Doganov on Sun, 16 Aug 2026 08:16:04 +0300) Subject: Re: bug#81610: 30.2; [PATCH] NS; NSRangeException when enabling tool-bar-mode References: <87mrurbg1t.GNU's_not_UNIX!-yavor@HIDDEN> <86o6f79ydd.fsf@HIDDEN> <an4m8B_35vAemiQP@HIDDEN> <87se4ezluz.GNU's_not_UNIX!-yavor@HIDDEN> X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 81610 Cc: 81610 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.7 (-) Ping! Alan, could you please reply to Yavor? > Date: Sun, 16 Aug 2026 08:16:04 +0300 > From: Yavor Doganov <yavor@HIDDEN> > > On Thu, 13 Aug 2026 23:20:00 +0300, > Alan Third wrote: > > On Wed, Aug 12, 2026 at 06:01:18PM +0300, Eli Zaretskii wrote: > > > > From: Yavor Doganov <yavor@HIDDEN> > > > > Notice that in GDB frames 2 and 3 there are two distinct EmacsToolbar > > > > instances for a single Emacs frame. The one from GDB frame 2, > > > > 0x555557a87500, is a "parasite" object: it is initialized at frame > > > > creation and toolbar items are never insterted in it. > > > > > > Alan, any comments to the patch? Because it's definitely > > > macOS-specific. > > > > This doesn't look right to me, > > Could you please explain why do you think so? > > The comment at free_frame_tool_bar says that we're only hiding the > toolbar, so the same object that was initially and unconditionally > created in EmacsWindow -initWithEmacsFrame:fullscreen:screen: > (nsterm.m:9844) should be reused. The following change demonstrates > what's wrong -- it discards the exception and prints the just > initialized EmacsToolbar object: > > diff --git a/src/nsmenu.m b/src/nsmenu.m > index ab6e7d7140d..5b0b289a6e4 100644 > --- a/src/nsmenu.m > +++ b/src/nsmenu.m > @@ -1277,6 +1277,7 @@ - (instancetype)initForView: (EmacsView *)view withIdentifier: (NSString *)ident > activeIdentifiers = [[NSMutableArray alloc] initWithCapacity: 8]; > prevIdentifiers = nil; > prevEnablement = enablement = 0L; > + GSPrintf (stdout, @"%@, identifier: %@\n", self, identifier); > return self; > } > > @@ -1307,7 +1308,10 @@ - (void) clearAll > > [self clearActive]; > while ([[self items] count] > 0) > + NS_DURING > [self removeItemAtIndex: 0]; > + NS_HANDLER > + NS_ENDHANDLER > } > > > With this change, if I run "emacs -Q" and type several times "M-x > tool-bar-mode RET", I get: > > <EmacsToolbar: 0x55b37539c050>, identifier: 0x55b373d3d1d0 > <EmacsToolbar: 0x55b3750914d0>, identifier: 0x55b373d3d1d0 > <EmacsToolbar: 0x55b373f1b1b0>, identifier: 0x55b373d3d1d0 > > That's for a single Emacs frame. With the patch I proposed, there's > only one object and there's no exception. > > The additional object is created precisely because the toolbar is set > to nil in free_frame_tool_bar, then the "toolbar" local variable in > update_frame_tool_bar is nil (because -toolbar returns nil), which > leads to another call to -createToolbar:. > > Since we're only hiding the toolbar, -setVisible: in > free_frame_tool_bar is sufficient and -setToolbar: does only harm > (memory leak + exception when you start Emacs with the toolbar > disabled). >
bug-gnu-emacs@HIDDEN:bug#81610; Package emacs.
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Date: Sun, 16 Aug 2026 08:16:04 +0300
Message-ID: <87se4ezluz.GNU's_not_UNIX!-yavor@HIDDEN>
From: Yavor Doganov <yavor@HIDDEN>
To: Alan Third <alan@HIDDEN>, Eli Zaretskii <eliz@HIDDEN>,
Yavor Doganov <yavor@HIDDEN>, 81610 <at> debbugs.gnu.org
Subject: Re: bug#81610: 30.2; [PATCH] NS;
NSRangeException when enabling tool-bar-mode
In-Reply-To: <an4m8B_35vAemiQP@HIDDEN>
References: <87mrurbg1t.GNU's_not_UNIX!-yavor@HIDDEN> <86o6f79ydd.fsf@HIDDEN>
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On Thu, 13 Aug 2026 23:20:00 +0300,
Alan Third wrote:
> On Wed, Aug 12, 2026 at 06:01:18PM +0300, Eli Zaretskii wrote:
> > > From: Yavor Doganov <yavor@HIDDEN>
> > > Notice that in GDB frames 2 and 3 there are two distinct EmacsToolbar
> > > instances for a single Emacs frame. The one from GDB frame 2,
> > > 0x555557a87500, is a "parasite" object: it is initialized at frame
> > > creation and toolbar items are never insterted in it.
> >
> > Alan, any comments to the patch? Because it's definitely
> > macOS-specific.
>
> This doesn't look right to me,
Could you please explain why do you think so?
The comment at free_frame_tool_bar says that we're only hiding the
toolbar, so the same object that was initially and unconditionally
created in EmacsWindow -initWithEmacsFrame:fullscreen:screen:
(nsterm.m:9844) should be reused. The following change demonstrates
what's wrong -- it discards the exception and prints the just
initialized EmacsToolbar object:
diff --git a/src/nsmenu.m b/src/nsmenu.m
index ab6e7d7140d..5b0b289a6e4 100644
--- a/src/nsmenu.m
+++ b/src/nsmenu.m
@@ -1277,6 +1277,7 @@ - (instancetype)initForView: (EmacsView *)view withIdentifier: (NSString *)ident
activeIdentifiers = [[NSMutableArray alloc] initWithCapacity: 8];
prevIdentifiers = nil;
prevEnablement = enablement = 0L;
+ GSPrintf (stdout, @"%@, identifier: %@\n", self, identifier);
return self;
}
@@ -1307,7 +1308,10 @@ - (void) clearAll
[self clearActive];
while ([[self items] count] > 0)
+ NS_DURING
[self removeItemAtIndex: 0];
+ NS_HANDLER
+ NS_ENDHANDLER
}
With this change, if I run "emacs -Q" and type several times "M-x
tool-bar-mode RET", I get:
<EmacsToolbar: 0x55b37539c050>, identifier: 0x55b373d3d1d0
<EmacsToolbar: 0x55b3750914d0>, identifier: 0x55b373d3d1d0
<EmacsToolbar: 0x55b373f1b1b0>, identifier: 0x55b373d3d1d0
That's for a single Emacs frame. With the patch I proposed, there's
only one object and there's no exception.
The additional object is created precisely because the toolbar is set
to nil in free_frame_tool_bar, then the "toolbar" local variable in
update_frame_tool_bar is nil (because -toolbar returns nil), which
leads to another call to -createToolbar:.
Since we're only hiding the toolbar, -setVisible: in
free_frame_tool_bar is sufficient and -setToolbar: does only harm
(memory leak + exception when you start Emacs with the toolbar
disabled).
bug-gnu-emacs@HIDDEN:bug#81610; Package emacs.
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Date: Thu, 13 Aug 2026 21:20:00 +0100
From: Alan Third <alan@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#81610: 30.2; [PATCH] NS; NSRangeException when enabling
tool-bar-mode
Message-ID: <an4m8B_35vAemiQP@HIDDEN>
Mail-Followup-To: Alan Third <alan@HIDDEN>,
Eli Zaretskii <eliz@HIDDEN>, Yavor Doganov <yavor@HIDDEN>,
81610 <at> debbugs.gnu.org
References: <87mrurbg1t.GNU's_not_UNIX!-yavor@HIDDEN> <86o6f79ydd.fsf@HIDDEN>
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On Wed, Aug 12, 2026 at 06:01:18PM +0300, Eli Zaretskii wrote:
> > Cc: yavor@HIDDEN
> > Date: Wed, 12 Aug 2026 16:54:06 +0300
> > From: Yavor Doganov <yavor@HIDDEN>
> >
> > If I customize the tool-bar-mode variable to nil then the toolbar is
> > not displayed, as expected. However, if I enable it explicitly with
> > the interactive command, an exception is thrown: a dialog "Critical
> > Error in emacs" appears containing "NSRangeException: Index 0 is out
> > of range 0 (in 'objectAtIndex:')". Emacs then aborts.
> >
> > Steps to reproduce:
> >
> > 1. emacs -Q --eval "(tool-bar-mode -1)"
> > 2. M-x tool-bar-mode RET
> >
> > Backtrace and proposed patch below based on the master branch.
> >
<snip>
> > Notice that in GDB frames 2 and 3 there are two distinct EmacsToolbar
> > instances for a single Emacs frame. The one from GDB frame 2,
> > 0x555557a87500, is a "parasite" object: it is initialized at frame
> > creation and toolbar items are never insterted in it.
> >
> > GNUstep's NSToolbar implementation of -removeItemAtIndex: (called from
> > EmacsToolbar -clearAll, nsmenu.m:1310) calls the private method
> > -_removeItemAtIndex:broadcast: which calls itself recursively,
> > dispatching the method call to all instances of the same class with
> > identical identifiers (see the TRANSMIT macro definition in
> > gnustep-gui/Source/NSToolbar.m:1205). The goal here is to update the
> > toolbars of the app's other windows ("frames" in Emacs terminology) if
> > the identifiers match.
> >
> > Because this first EmacsToolbar instance doesn't have any toolbar
> > items, an exception occurs.
>
> Alan, any comments to the patch? Because it's definitely
> macOS-specific.
This doesn't look right to me, but I don't have a GNUstep environment
to test it in and, frankly, I can't remember how toolbars work, if I
ever knew.
--
Alan Third
bug-gnu-emacs@HIDDEN:bug#81610; Package emacs.
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Subject: Re: bug#81610: 30.2; [PATCH] NS;
NSRangeException when enabling tool-bar-mode
To: Eli Zaretskii <eliz@HIDDEN>
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On Wed, Aug 12, 2026 at 11:16=E2=80=AFAM Eli Zaretskii <eliz@HIDDEN> wrote=
:
> > Cc: yavor@HIDDEN
> > Date: Wed, 12 Aug 2026 16:54:06 +0300
> > From: Yavor Doganov <yavor@HIDDEN>
> >
> > If I customize the tool-bar-mode variable to nil then the toolbar is
> > not displayed, as expected. However, if I enable it explicitly with
> > the interactive command, an exception is thrown: a dialog "Critical
> > Error in emacs" appears containing "NSRangeException: Index 0 is out
> > of range 0 (in 'objectAtIndex:')". Emacs then aborts.
> >
> > Steps to reproduce:
> >
> > 1. emacs -Q --eval "(tool-bar-mode -1)"
> > 2. M-x tool-bar-mode RET
> >
> > Backtrace and proposed patch below based on the master branch.
> >
> > In GNU Emacs 30.2 (build 2, x86_64-pc-linux-gnu, NS
> > gnustep-gui-0.32.0) of 2026-07-04, modified by Debian built on
> > patilan
> > Windowing system distributor 'GNU', version 10.3.32
> > System Description: Debian GNU/Linux forky/sid
> >
> > Configured using:
> > 'configure --build x86_64-linux-gnu --prefix=3D/usr
> > --sharedstatedir=3D/var/lib --libexecdir=3D/usr/libexec
> > --localstatedir=3D/var/lib --infodir=3D/usr/share/info
> > --mandir=3D/usr/share/man --with-libsystemd --with-pop=3Dyes
> >
> --enable-locallisppath=3D/etc/emacs:/usr/local/share/emacs/30.2/site-lisp=
:/usr/local/share/emacs/site-lisp:/usr/share/emacs/30.2/site-lisp:/usr/shar=
e/emacs/site-lisp
> > --with-sound=3Dalsa --without-gconf --with-mailutils --build
> > x86_64-linux-gnu --prefix=3D/usr --sharedstatedir=3D/var/lib
> > --libexecdir=3D/usr/libexec --localstatedir=3D/var/lib
> > --infodir=3D/usr/share/info --mandir=3D/usr/share/man --with-libsystem=
d
> > --with-pop=3Dyes
> >
> --enable-locallisppath=3D/etc/emacs:/usr/local/share/emacs/30.2/site-lisp=
:/usr/local/share/emacs/site-lisp:/usr/share/emacs/30.2/site-lisp:/usr/shar=
e/emacs/site-lisp
> > --with-sound=3Dalsa --without-gconf --with-mailutils --with-ns
> > --disable-ns-self-contained --without-gif --without-jpeg
> > --without-png --without-rsvg --without-tiff --without-webp 'CFLAGS=3D-=
g
> > -O2 -Werror=3Dimplicit-function-declaration
> > -ffile-prefix-map=3D/build/reproducible-path/emacs-30.2+1=3D.
> -fstack-protector-strong
> > -fstack-clash-protection -Wformat -Werror=3Dformat-security
> > -fcf-protection -Wall' 'CPPFLAGS=3D-Wdate-time -D_FORTIFY_SOURCE=3D2'
> > LDFLAGS=3D-Wl,-z,relro'
> >
> > Configured features:
> > ACL DBUS GMP GNUTLS GPM LCMS2 LIBSELINUX LIBSYSTEMD LIBXML2 MODULES
> > NATIVE_COMP NOTIFY INOTIFY NS PDUMPER SECCOMP SOUND SQLITE3 THREADS
> > TOOLKIT_SCROLL_BARS TREE_SITTER XIM ZLIB
> >
> > (gdb) break -[NSException raise]
> > =E2=9D=8C=EF=B8=8F Function "-[NSException raise]" not defined.
> > Make breakpoint pending on future shared library load? (y or [n]) y
> > Breakpoint 1 (-[NSException raise]) pending.
> > (gdb) r -Q --eval "(tool-bar-mode -1)"
> > Starting program: /home/yavor/src/emacs/src/emacs -Q --eval
> "(tool-bar-mode -1)"
> > [Thread debugging using libthread_db enabled]
> > Using host libthread_db library
> "/usr/lib/x86_64-linux-gnu/libthread_db.so.1".
> > =E2=9A=A0=EF=B8=8F warning: Corrupted shared library list: 0x5555564e04=
b0 !=3D
> 0x5555564df930
> > [New Thread 0x7fffe8d5e6c0 (LWP 246730)]
> >
> > Thread 1 "emacs" hit Breakpoint 1, -[NSException raise]
> (self=3D0x5555574f8030,
> > _cmd=3D0x7ffff758d640 <_OBJC_SELECTOR_TABLE+128>)
> > at ./Source/NSException.m:1602
> > =E2=9A=A0=EF=B8=8F warning: 1602 ./Source/NSException.m: =D0=9D=D1=
=8F=D0=BC=D0=B0 =D1=82=D0=B0=D0=BA=D1=8A=D0=B2 =D1=84=D0=B0=D0=B9=D0=BB =D0=
=B8=D0=BB=D0=B8
> =D0=B4=D0=B8=D1=80=D0=B5=D0=BA=D1=82=D0=BE=D1=80=D0=B8=D1=8F
> > (gdb) bt
> > #0 -[NSException raise]
> > (self=3D0x5555574f8030, _cmd=3D0x7ffff758d640 <_OBJC_SELECTOR_TABLE=
+128>)
> > at ./Source/NSException.m:1602
> > #1 0x00007ffff71c02b4 in -[GSArray objectAtIndex:]
> > (self=3D0x555557b78bc0, _cmd=3D<optimized out>, index=3D0)
> > at ./Source/GSArray.m:355
> > #2 0x00007ffff7c1dddd in -[NSToolbar _removeItemAtIndex:broadcast:]
> > (self=3D0x555557a87500, _cmd=3D<optimized out>, index=3D0, broadcas=
t=3D0
> '\000')
> > at ./Source/NSToolbar.m:1270
> > #3 0x00007ffff7c1dfed in -[NSToolbar _removeItemAtIndex:broadcast:]
> > (self=3D0x555557fb5980, _cmd=3D<optimized out>, index=3D0,
> broadcast=3D<optimized out>) at ./Source/NSToolbar.m:1284
> > #4 0x0000555555851b79 in -[EmacsToolbar clearAll]
> > (self=3D0x555557fb5980, _cmd=3D<optimized out>) at nsmenu.m:1310
> > #5 0x00005555558569de in update_frame_tool_bar_1
> > (f=3D0x5555560725a0, toolbar=3D0x555557fb5980) at nsmenu.m:1133
> > #6 0x0000555555662e44 in redisplay_window
> > (window=3D0x5555560f1105, just_this_one_p=3Djust_this_one_p@entry=
=3Dfalse)
> > at xdisp.c:21545
> > #7 0x0000555555663adb in redisplay_window_0 (window=3D<optimized out>)
> > at xdisp.c:18531
> > #8 0x0000555555773a29 in internal_condition_case_1
> > (bfun=3Dbfun@entry=3D0x555555663ab0 <redisplay_window_0>,
> arg=3D0x5555560f1105, handlers=3D<optimized out>, hfun=3Dhfun@entry=3D0x5=
555556149b0
> <redisplay_window_error>) at eval.c:1736
> > #9 0x0000555555611c85 in redisplay_windows (window=3D0x5555560f1105)
> > at xdisp.c:18500
> > #10 0x0000555555647cc0 in redisplay_internal () at xdisp.c:17917
> > #11 0x0000555555649b75 in redisplay () at xdisp.c:17063
> > #12 0x00005555556f0582 in read_char
> > (commandflag=3D<optimized out>, map=3Dmap@entry=3D0x7fffecf61563,
> prev_event=3D<optimized out>, used_mouse_menu=3Dused_mouse_menu@entry=3D0=
x7fffffffd76b,
> end_time=3Dend_time@entry=3D0x0) at keyboard.c:2711
> > #13 0x00005555556f35e3 in read_key_sequence
> > (keybuf=3Dkeybuf@entry=3D0x7fffffffd8b0, prompt=3Dprompt@entry=3D0x=
0,
> dont_downcase_last=3Ddont_downcase_last@entry=3Dfalse,
> can_return_switch_frame=3Dcan_return_switch_frame@entry=3Dtrue,
> fix_current_buffer=3Dfix_current_buffer@entry=3Dtrue,
> prevent_redisplay=3Dprevent_redisplay@entry=3Dfalse,
> disable_text_conversion_p=3Dfalse)
> > at keyboard.c:11224
> > #14 0x00005555556f5754 in command_loop_1 () at keyboard.c:1424
> > #15 0x00005555557739a4 in internal_condition_case
> > (bfun=3Dbfun@entry=3D0x5555556f55a0 <command_loop_1>,
> handlers=3Dhandlers@entry=3D0x90, hfun=3Dhfun@entry=3D0x5555556e7b30 <cmd=
_error>)
> at eval.c:1712
> > #16 0x00005555556df366 in command_loop_2 (handlers=3D0x90) at
> keyboard.c:1163
> > #17 0x00005555557738fe in internal_catch
> > (tag=3Dtag@entry=3D0x12270, func=3Dfunc@entry=3D0x5555556df340
> <command_loop_2>, arg=3Darg@entry=3D0x90) at eval.c:1392
> > #18 0x00005555556df303 in command_loop () at keyboard.c:1141
> > #19 0x00005555556e76e1 in recursive_edit_1 () at keyboard.c:749
> > #20 0x00005555556e7a68 in Frecursive_edit () at keyboard.c:832
> > #21 0x00005555555f1de8 in main (argc=3D<optimized out>, argv=3D<optimiz=
ed
> out>)
> > at emacs.c:2635
> > (gdb) fr 3
> > #3 0x00007ffff7c1dfed in -[NSToolbar _removeItemAtIndex:broadcast:] (
> > self=3D0x555557fb5980, _cmd=3D<optimized out>, index=3D0,
> > broadcast=3D<optimized out>) at ./Source/NSToolbar.m:1284
> > =E2=9A=A0=EF=B8=8F warning: 1284 ./Source/NSToolbar.m: =D0=9D=D1=
=8F=D0=BC=D0=B0 =D1=82=D0=B0=D0=BA=D1=8A=D0=B2 =D1=84=D0=B0=D0=B9=D0=BB =D0=
=B8=D0=BB=D0=B8
> =D0=B4=D0=B8=D1=80=D0=B5=D0=BA=D1=82=D0=BE=D1=80=D0=B8=D1=8F
> > (gdb) po self
> > <EmacsToolbar: 0x555557fb5980>
> > (gdb) po _items
> > ("<<NSToolbarItem: 0x555557fb5210> - <5864062930753Open>>",
> "<<NSToolbarItem: 0x555557fb4ac0> - <5864062916976Open Directory>>",
> "<<NSToolbarItem: 0x555557fb42f0> - <5864062922955Close>>",
> "<<NSToolbarItem: 0x555557fb3b20> - <5864062924951Save>>",
> "<<NSToolbarItem: 0x555557fb3350> - <5864062937190Undo>>",
> "<<NSToolbarItem: 0x555557fb2b80> - <5864062939314Cut>>", "<<NSToolbarIte=
m:
> 0x555557fb23b0> - <5864062940411Copy>>", "<<NSToolbarItem: 0x555557fb1bc0=
>
> - <5864063816493Paste>>", "<<NSToolbarItem: 0x555557fb13f0> -
> <5864064151308Search>>")
> > (gdb) down
> > #2 0x00007ffff7c1dddd in -[NSToolbar _removeItemAtIndex:broadcast:] (
> > self=3D0x555557a87500, _cmd=3D<optimized out>, index=3D0, broadcast=
=3D0
> '\000')
> > at ./Source/NSToolbar.m:1270
> > 1270 in ./Source/NSToolbar.m
> > (gdb) po self
> > <EmacsToolbar: 0x555557a87500>
> > (gdb) po _items
> > ()
> >
> > Notice that in GDB frames 2 and 3 there are two distinct EmacsToolbar
> > instances for a single Emacs frame. The one from GDB frame 2,
> > 0x555557a87500, is a "parasite" object: it is initialized at frame
> > creation and toolbar items are never insterted in it.
> >
> > GNUstep's NSToolbar implementation of -removeItemAtIndex: (called from
> > EmacsToolbar -clearAll, nsmenu.m:1310) calls the private method
> > -_removeItemAtIndex:broadcast: which calls itself recursively,
> > dispatching the method call to all instances of the same class with
> > identical identifiers (see the TRANSMIT macro definition in
> > gnustep-gui/Source/NSToolbar.m:1205). The goal here is to update the
> > toolbars of the app's other windows ("frames" in Emacs terminology) if
> > the identifiers match.
> >
> > Because this first EmacsToolbar instance doesn't have any toolbar
> > items, an exception occurs.
>
> Alan, any comments to the patch? Because it's definitely
> macOS-specific.
>
It looks like GNUstep on GNU/Linux. Not a combination I have readily
available to assist.
--0000000000003808030658f18a9e
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
<div dir=3D"ltr"><div dir=3D"ltr"><div class=3D"gmail_default" style=3D"fon=
t-family:monospace"><span style=3D"font-family:Arial,Helvetica,sans-serif;b=
ackground-color:transparent">On Wed, Aug 12, 2026 at 11:16=E2=80=AFAM Eli Z=
aretskii <<a href=3D"mailto:eliz@HIDDEN">eliz@HIDDEN</a>> wrote:</s=
pan></div></div><div class=3D"gmail_quote gmail_quote_container"><blockquot=
e class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px s=
olid rgb(204,204,204);padding-left:1ex">> Cc: <a href=3D"mailto:yavor@gn=
u.org" target=3D"_blank">yavor@HIDDEN</a><br>
> Date: Wed, 12 Aug 2026 16:54:06 +0300<br>
> From: Yavor Doganov <<a href=3D"mailto:yavor@HIDDEN" target=3D"_bl=
ank">yavor@HIDDEN</a>><br>
> <br>
> If I customize the tool-bar-mode variable to nil then the toolbar is<b=
r>
> not displayed, as expected.=C2=A0 However, if I enable it explicitly w=
ith<br>
> the interactive command, an exception is thrown: a dialog "Critic=
al<br>
> Error in emacs" appears containing "NSRangeException: Index =
0 is out<br>
> of range 0 (in 'objectAtIndex:')".=C2=A0 Emacs then abort=
s.<br>
> <br>
> Steps to reproduce:<br>
> <br>
>=C2=A0 =C2=A01. emacs -Q --eval "(tool-bar-mode -1)"<br>
>=C2=A0 =C2=A02. M-x tool-bar-mode RET<br>
> <br>
> Backtrace and proposed patch below based on the master branch.<br>
> <br>
> In GNU Emacs 30.2 (build 2, x86_64-pc-linux-gnu, NS<br>
>=C2=A0 gnustep-gui-0.32.0) of 2026-07-04, modified by Debian built on<b=
r>
>=C2=A0 patilan<br>
> Windowing system distributor 'GNU', version 10.3.32<br>
> System Description: Debian GNU/Linux forky/sid<br>
> <br>
> Configured using:<br>
>=C2=A0 'configure --build x86_64-linux-gnu --prefix=3D/usr<br>
>=C2=A0 --sharedstatedir=3D/var/lib --libexecdir=3D/usr/libexec<br>
>=C2=A0 --localstatedir=3D/var/lib --infodir=3D/usr/share/info<br>
>=C2=A0 --mandir=3D/usr/share/man --with-libsystemd --with-pop=3Dyes<br>
>=C2=A0 --enable-locallisppath=3D/etc/emacs:/usr/local/share/emacs/30.2/=
site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/30.2/site-lisp:=
/usr/share/emacs/site-lisp<br>
>=C2=A0 --with-sound=3Dalsa --without-gconf --with-mailutils --build<br>
>=C2=A0 x86_64-linux-gnu --prefix=3D/usr --sharedstatedir=3D/var/lib<br>
>=C2=A0 --libexecdir=3D/usr/libexec --localstatedir=3D/var/lib<br>
>=C2=A0 --infodir=3D/usr/share/info --mandir=3D/usr/share/man --with-lib=
systemd<br>
>=C2=A0 --with-pop=3Dyes<br>
>=C2=A0 --enable-locallisppath=3D/etc/emacs:/usr/local/share/emacs/30.2/=
site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/30.2/site-lisp:=
/usr/share/emacs/site-lisp<br>
>=C2=A0 --with-sound=3Dalsa --without-gconf --with-mailutils --with-ns<b=
r>
>=C2=A0 --disable-ns-self-contained --without-gif --without-jpeg<br>
>=C2=A0 --without-png --without-rsvg --without-tiff --without-webp '=
CFLAGS=3D-g<br>
>=C2=A0 -O2 -Werror=3Dimplicit-function-declaration<br>
>=C2=A0 -ffile-prefix-map=3D/build/reproducible-path/emacs-30.2+1=3D. -f=
stack-protector-strong<br>
>=C2=A0 -fstack-clash-protection -Wformat -Werror=3Dformat-security<br>
>=C2=A0 -fcf-protection -Wall' 'CPPFLAGS=3D-Wdate-time -D_FORTIF=
Y_SOURCE=3D2'<br>
>=C2=A0 LDFLAGS=3D-Wl,-z,relro'<br>
> <br>
> Configured features:<br>
> ACL DBUS GMP GNUTLS GPM LCMS2 LIBSELINUX LIBSYSTEMD LIBXML2 MODULES<br=
>
> NATIVE_COMP NOTIFY INOTIFY NS PDUMPER SECCOMP SOUND SQLITE3 THREADS<br=
>
> TOOLKIT_SCROLL_BARS TREE_SITTER XIM ZLIB<br>
> <br>
> (gdb) break -[NSException raise]<br>
> =E2=9D=8C=EF=B8=8F Function "-[NSException raise]" not defin=
ed.<br>
> Make breakpoint pending on future shared library load? (y or [n]) y<br=
>
> Breakpoint 1 (-[NSException raise]) pending.<br>
> (gdb) r -Q --eval "(tool-bar-mode -1)"<br>
> Starting program: /home/yavor/src/emacs/src/emacs -Q --eval "(too=
l-bar-mode -1)"<br>
> [Thread debugging using libthread_db enabled]<br>
> Using host libthread_db library "/usr/lib/x86_64-linux-gnu/libthr=
ead_db.so.1".<br>
> =E2=9A=A0=EF=B8=8F warning: Corrupted shared library list: 0x5555564e0=
4b0 !=3D 0x5555564df930<br>
> [New Thread 0x7fffe8d5e6c0 (LWP 246730)]<br>
> <br>
> Thread 1 "emacs" hit Breakpoint 1, -[NSException raise] (sel=
f=3D0x5555574f8030, <br>
>=C2=A0 =C2=A0 =C2=A0_cmd=3D0x7ffff758d640 <_OBJC_SELECTOR_TABLE+128&=
gt;)<br>
>=C2=A0 =C2=A0 =C2=A0at ./Source/NSException.m:1602<br>
> =E2=9A=A0=EF=B8=8F warning: 1602=C2=A0 =C2=A0 =C2=A0 ./Source/NSExcept=
ion.m: =D0=9D=D1=8F=D0=BC=D0=B0 =D1=82=D0=B0=D0=BA=D1=8A=D0=B2 =D1=84=D0=B0=
=D0=B9=D0=BB =D0=B8=D0=BB=D0=B8 =D0=B4=D0=B8=D1=80=D0=B5=D0=BA=D1=82=D0=BE=
=D1=80=D0=B8=D1=8F<br>
> (gdb) bt<br>
> #0=C2=A0 -[NSException raise]<br>
>=C2=A0 =C2=A0 =C2=A0(self=3D0x5555574f8030, _cmd=3D0x7ffff758d640 <_=
OBJC_SELECTOR_TABLE+128>)<br>
>=C2=A0 =C2=A0 =C2=A0at ./Source/NSException.m:1602<br>
> #1=C2=A0 0x00007ffff71c02b4 in -[GSArray objectAtIndex:]<br>
>=C2=A0 =C2=A0 =C2=A0(self=3D0x555557b78bc0, _cmd=3D<optimized out>=
;, index=3D0)<br>
>=C2=A0 =C2=A0 =C2=A0at ./Source/GSArray.m:355<br>
> #2=C2=A0 0x00007ffff7c1dddd in -[NSToolbar _removeItemAtIndex:broadcas=
t:]<br>
>=C2=A0 =C2=A0 =C2=A0(self=3D0x555557a87500, _cmd=3D<optimized out>=
;, index=3D0, broadcast=3D0 '\000')<br>
>=C2=A0 =C2=A0 =C2=A0at ./Source/NSToolbar.m:1270<br>
> #3=C2=A0 0x00007ffff7c1dfed in -[NSToolbar _removeItemAtIndex:broadcas=
t:]<br>
>=C2=A0 =C2=A0 =C2=A0(self=3D0x555557fb5980, _cmd=3D<optimized out>=
;, index=3D0, broadcast=3D<optimized out>) at ./Source/NSToolbar.m:12=
84<br>
> #4=C2=A0 0x0000555555851b79 in -[EmacsToolbar clearAll]<br>
>=C2=A0 =C2=A0 =C2=A0(self=3D0x555557fb5980, _cmd=3D<optimized out>=
;) at nsmenu.m:1310<br>
> #5=C2=A0 0x00005555558569de in update_frame_tool_bar_1<br>
>=C2=A0 =C2=A0 =C2=A0(f=3D0x5555560725a0, toolbar=3D0x555557fb5980) at n=
smenu.m:1133<br>
> #6=C2=A0 0x0000555555662e44 in redisplay_window<br>
>=C2=A0 =C2=A0 =C2=A0(window=3D0x5555560f1105, just_this_one_p=3Djust_th=
is_one_p@entry=3Dfalse)<br>
>=C2=A0 =C2=A0 =C2=A0at xdisp.c:21545<br>
> #7=C2=A0 0x0000555555663adb in redisplay_window_0 (window=3D<optimi=
zed out>)<br>
>=C2=A0 =C2=A0 =C2=A0at xdisp.c:18531<br>
> #8=C2=A0 0x0000555555773a29 in internal_condition_case_1<br>
>=C2=A0 =C2=A0 =C2=A0(bfun=3Dbfun@entry=3D0x555555663ab0 <redisplay_w=
indow_0>, arg=3D0x5555560f1105, handlers=3D<optimized out>, hfun=
=3Dhfun@entry=3D0x5555556149b0 <redisplay_window_error>) at eval.c:17=
36<br>
> #9=C2=A0 0x0000555555611c85 in redisplay_windows (window=3D0x5555560f1=
105)<br>
>=C2=A0 =C2=A0 =C2=A0at xdisp.c:18500<br>
> #10 0x0000555555647cc0 in redisplay_internal () at xdisp.c:17917<br>
> #11 0x0000555555649b75 in redisplay () at xdisp.c:17063<br>
> #12 0x00005555556f0582 in read_char<br>
>=C2=A0 =C2=A0 =C2=A0(commandflag=3D<optimized out>, map=3Dmap@ent=
ry=3D0x7fffecf61563, prev_event=3D<optimized out>, used_mouse_menu=3D=
used_mouse_menu@entry=3D0x7fffffffd76b, end_time=3Dend_time@entry=3D0x0) at=
keyboard.c:2711<br>
> #13 0x00005555556f35e3 in read_key_sequence<br>
>=C2=A0 =C2=A0 =C2=A0(keybuf=3Dkeybuf@entry=3D0x7fffffffd8b0, prompt=3Dp=
rompt@entry=3D0x0, dont_downcase_last=3Ddont_downcase_last@entry=3Dfalse, c=
an_return_switch_frame=3Dcan_return_switch_frame@entry=3Dtrue, fix_current_=
buffer=3Dfix_current_buffer@entry=3Dtrue, prevent_redisplay=3Dprevent_redis=
play@entry=3Dfalse, disable_text_conversion_p=3Dfalse)<br>
>=C2=A0 =C2=A0 =C2=A0at keyboard.c:11224<br>
> #14 0x00005555556f5754 in command_loop_1 () at keyboard.c:1424<br>
> #15 0x00005555557739a4 in internal_condition_case<br>
>=C2=A0 =C2=A0 =C2=A0(bfun=3Dbfun@entry=3D0x5555556f55a0 <command_loo=
p_1>, handlers=3Dhandlers@entry=3D0x90, hfun=3Dhfun@entry=3D0x5555556e7b=
30 <cmd_error>) at eval.c:1712<br>
> #16 0x00005555556df366 in command_loop_2 (handlers=3D0x90) at keyboard=
.c:1163<br>
> #17 0x00005555557738fe in internal_catch<br>
>=C2=A0 =C2=A0 =C2=A0(tag=3Dtag@entry=3D0x12270, func=3Dfunc@entry=3D0x5=
555556df340 <command_loop_2>, arg=3Darg@entry=3D0x90) at eval.c:1392<=
br>
> #18 0x00005555556df303 in command_loop () at keyboard.c:1141<br>
> #19 0x00005555556e76e1 in recursive_edit_1 () at keyboard.c:749<br>
> #20 0x00005555556e7a68 in Frecursive_edit () at keyboard.c:832<br>
> #21 0x00005555555f1de8 in main (argc=3D<optimized out>, argv=3D&=
lt;optimized out>)<br>
>=C2=A0 =C2=A0 =C2=A0at emacs.c:2635<br>
> (gdb) fr 3<br>
> #3=C2=A0 0x00007ffff7c1dfed in -[NSToolbar _removeItemAtIndex:broadcas=
t:] (<br>
>=C2=A0 =C2=A0 =C2=A0self=3D0x555557fb5980, _cmd=3D<optimized out>=
, index=3D0, <br>
>=C2=A0 =C2=A0 =C2=A0broadcast=3D<optimized out>) at ./Source/NSTo=
olbar.m:1284<br>
> =E2=9A=A0=EF=B8=8F warning: 1284=C2=A0 =C2=A0 =C2=A0 ./Source/NSToolba=
r.m: =D0=9D=D1=8F=D0=BC=D0=B0 =D1=82=D0=B0=D0=BA=D1=8A=D0=B2 =D1=84=D0=B0=
=D0=B9=D0=BB =D0=B8=D0=BB=D0=B8 =D0=B4=D0=B8=D1=80=D0=B5=D0=BA=D1=82=D0=BE=
=D1=80=D0=B8=D1=8F<br>
> (gdb) po self<br>
> <EmacsToolbar: 0x555557fb5980><br>
> (gdb) po _items<br>
> ("<<NSToolbarItem: 0x555557fb5210> - <5864062930753Op=
en>>", "<<NSToolbarItem: 0x555557fb4ac0> - <586=
4062916976Open Directory>>", "<<NSToolbarItem: 0x5555=
57fb42f0> - <5864062922955Close>>", "<<NSToolba=
rItem: 0x555557fb3b20> - <5864062924951Save>>", "<=
<NSToolbarItem: 0x555557fb3350> - <5864062937190Undo>>"=
, "<<NSToolbarItem: 0x555557fb2b80> - <5864062939314Cut>=
;>", "<<NSToolbarItem: 0x555557fb23b0> - <58640629=
40411Copy>>", "<<NSToolbarItem: 0x555557fb1bc0> - =
<5864063816493Paste>>", "<<NSToolbarItem: 0x555557=
fb13f0> - <5864064151308Search>>")<br>
> (gdb) down<br>
> #2=C2=A0 0x00007ffff7c1dddd in -[NSToolbar _removeItemAtIndex:broadcas=
t:] (<br>
>=C2=A0 =C2=A0 =C2=A0self=3D0x555557a87500, _cmd=3D<optimized out>=
, index=3D0, broadcast=3D0 '\000')<br>
>=C2=A0 =C2=A0 =C2=A0at ./Source/NSToolbar.m:1270<br>
> 1270=C2=A0 in ./Source/NSToolbar.m<br>
> (gdb) po self<br>
> <EmacsToolbar: 0x555557a87500><br>
> (gdb) po _items<br>
> ()<br>
> <br>
> Notice that in GDB frames 2 and 3 there are two distinct EmacsToolbar<=
br>
> instances for a single Emacs frame.=C2=A0 The one from GDB frame 2,<br=
>
> 0x555557a87500, is a "parasite" object: it is initialized at=
frame<br>
> creation and toolbar items are never insterted in it.<br>
> <br>
> GNUstep's NSToolbar implementation of -removeItemAtIndex: (called =
from<br>
> EmacsToolbar -clearAll, nsmenu.m:1310) calls the private method<br>
> -_removeItemAtIndex:broadcast: which calls itself recursively,<br>
> dispatching the method call to all instances of the same class with<br=
>
> identical identifiers (see the TRANSMIT macro definition in<br>
> gnustep-gui/Source/NSToolbar.m:1205).=C2=A0 The goal here is to update=
the<br>
> toolbars of the app's other windows ("frames" in Emacs t=
erminology) if<br>
> the identifiers match.<br>
> <br>
> Because this first EmacsToolbar instance doesn't have any toolbar<=
br>
> items, an exception occurs.<br>
<br>
Alan, any comments to the patch?=C2=A0 Because it's definitely<br>
macOS-specific.<br></blockquote><div><br></div><div class=3D"gmail_default"=
style=3D"font-family:monospace">It looks like GNUstep on GNU/Linux.=C2=A0 =
Not a combination I have readily available=C2=A0to assist.</div></div></div=
>
--0000000000003808030658f18a9e--
bug-gnu-emacs@HIDDEN:bug#81610; Package emacs.
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Date: Wed, 12 Aug 2026 18:01:18 +0300
Message-Id: <86o6f79ydd.fsf@HIDDEN>
From: Eli Zaretskii <eliz@HIDDEN>
To: Yavor Doganov <yavor@HIDDEN>, Alan Third <alan@HIDDEN>
In-Reply-To: <87mrurbg1t.GNU's_not_UNIX!-yavor@HIDDEN> (message from Yavor
Doganov on Wed, 12 Aug 2026 16:54:06 +0300)
Subject: Re: bug#81610: 30.2; [PATCH] NS;
NSRangeException when enabling tool-bar-mode
References: <87mrurbg1t.GNU's_not_UNIX!-yavor@HIDDEN>
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> Cc: yavor@HIDDEN
> Date: Wed, 12 Aug 2026 16:54:06 +0300
> From: Yavor Doganov <yavor@HIDDEN>
>
> If I customize the tool-bar-mode variable to nil then the toolbar is
> not displayed, as expected. However, if I enable it explicitly with
> the interactive command, an exception is thrown: a dialog "Critical
> Error in emacs" appears containing "NSRangeException: Index 0 is out
> of range 0 (in 'objectAtIndex:')". Emacs then aborts.
>
> Steps to reproduce:
>
> 1. emacs -Q --eval "(tool-bar-mode -1)"
> 2. M-x tool-bar-mode RET
>
> Backtrace and proposed patch below based on the master branch.
>
> In GNU Emacs 30.2 (build 2, x86_64-pc-linux-gnu, NS
> gnustep-gui-0.32.0) of 2026-07-04, modified by Debian built on
> patilan
> Windowing system distributor 'GNU', version 10.3.32
> System Description: Debian GNU/Linux forky/sid
>
> Configured using:
> 'configure --build x86_64-linux-gnu --prefix=/usr
> --sharedstatedir=/var/lib --libexecdir=/usr/libexec
> --localstatedir=/var/lib --infodir=/usr/share/info
> --mandir=/usr/share/man --with-libsystemd --with-pop=yes
> --enable-locallisppath=/etc/emacs:/usr/local/share/emacs/30.2/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/30.2/site-lisp:/usr/share/emacs/site-lisp
> --with-sound=alsa --without-gconf --with-mailutils --build
> x86_64-linux-gnu --prefix=/usr --sharedstatedir=/var/lib
> --libexecdir=/usr/libexec --localstatedir=/var/lib
> --infodir=/usr/share/info --mandir=/usr/share/man --with-libsystemd
> --with-pop=yes
> --enable-locallisppath=/etc/emacs:/usr/local/share/emacs/30.2/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/30.2/site-lisp:/usr/share/emacs/site-lisp
> --with-sound=alsa --without-gconf --with-mailutils --with-ns
> --disable-ns-self-contained --without-gif --without-jpeg
> --without-png --without-rsvg --without-tiff --without-webp 'CFLAGS=-g
> -O2 -Werror=implicit-function-declaration
> -ffile-prefix-map=/build/reproducible-path/emacs-30.2+1=. -fstack-protector-strong
> -fstack-clash-protection -Wformat -Werror=format-security
> -fcf-protection -Wall' 'CPPFLAGS=-Wdate-time -D_FORTIFY_SOURCE=2'
> LDFLAGS=-Wl,-z,relro'
>
> Configured features:
> ACL DBUS GMP GNUTLS GPM LCMS2 LIBSELINUX LIBSYSTEMD LIBXML2 MODULES
> NATIVE_COMP NOTIFY INOTIFY NS PDUMPER SECCOMP SOUND SQLITE3 THREADS
> TOOLKIT_SCROLL_BARS TREE_SITTER XIM ZLIB
>
> (gdb) break -[NSException raise]
> ❌️ Function "-[NSException raise]" not defined.
> Make breakpoint pending on future shared library load? (y or [n]) y
> Breakpoint 1 (-[NSException raise]) pending.
> (gdb) r -Q --eval "(tool-bar-mode -1)"
> Starting program: /home/yavor/src/emacs/src/emacs -Q --eval "(tool-bar-mode -1)"
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library "/usr/lib/x86_64-linux-gnu/libthread_db.so.1".
> ⚠️ warning: Corrupted shared library list: 0x5555564e04b0 != 0x5555564df930
> [New Thread 0x7fffe8d5e6c0 (LWP 246730)]
>
> Thread 1 "emacs" hit Breakpoint 1, -[NSException raise] (self=0x5555574f8030,
> _cmd=0x7ffff758d640 <_OBJC_SELECTOR_TABLE+128>)
> at ./Source/NSException.m:1602
> ⚠️ warning: 1602 ./Source/NSException.m: Няма такъв файл или директория
> (gdb) bt
> #0 -[NSException raise]
> (self=0x5555574f8030, _cmd=0x7ffff758d640 <_OBJC_SELECTOR_TABLE+128>)
> at ./Source/NSException.m:1602
> #1 0x00007ffff71c02b4 in -[GSArray objectAtIndex:]
> (self=0x555557b78bc0, _cmd=<optimized out>, index=0)
> at ./Source/GSArray.m:355
> #2 0x00007ffff7c1dddd in -[NSToolbar _removeItemAtIndex:broadcast:]
> (self=0x555557a87500, _cmd=<optimized out>, index=0, broadcast=0 '\000')
> at ./Source/NSToolbar.m:1270
> #3 0x00007ffff7c1dfed in -[NSToolbar _removeItemAtIndex:broadcast:]
> (self=0x555557fb5980, _cmd=<optimized out>, index=0, broadcast=<optimized out>) at ./Source/NSToolbar.m:1284
> #4 0x0000555555851b79 in -[EmacsToolbar clearAll]
> (self=0x555557fb5980, _cmd=<optimized out>) at nsmenu.m:1310
> #5 0x00005555558569de in update_frame_tool_bar_1
> (f=0x5555560725a0, toolbar=0x555557fb5980) at nsmenu.m:1133
> #6 0x0000555555662e44 in redisplay_window
> (window=0x5555560f1105, just_this_one_p=just_this_one_p@entry=false)
> at xdisp.c:21545
> #7 0x0000555555663adb in redisplay_window_0 (window=<optimized out>)
> at xdisp.c:18531
> #8 0x0000555555773a29 in internal_condition_case_1
> (bfun=bfun@entry=0x555555663ab0 <redisplay_window_0>, arg=0x5555560f1105, handlers=<optimized out>, hfun=hfun@entry=0x5555556149b0 <redisplay_window_error>) at eval.c:1736
> #9 0x0000555555611c85 in redisplay_windows (window=0x5555560f1105)
> at xdisp.c:18500
> #10 0x0000555555647cc0 in redisplay_internal () at xdisp.c:17917
> #11 0x0000555555649b75 in redisplay () at xdisp.c:17063
> #12 0x00005555556f0582 in read_char
> (commandflag=<optimized out>, map=map@entry=0x7fffecf61563, prev_event=<optimized out>, used_mouse_menu=used_mouse_menu@entry=0x7fffffffd76b, end_time=end_time@entry=0x0) at keyboard.c:2711
> #13 0x00005555556f35e3 in read_key_sequence
> (keybuf=keybuf@entry=0x7fffffffd8b0, prompt=prompt@entry=0x0, dont_downcase_last=dont_downcase_last@entry=false, can_return_switch_frame=can_return_switch_frame@entry=true, fix_current_buffer=fix_current_buffer@entry=true, prevent_redisplay=prevent_redisplay@entry=false, disable_text_conversion_p=false)
> at keyboard.c:11224
> #14 0x00005555556f5754 in command_loop_1 () at keyboard.c:1424
> #15 0x00005555557739a4 in internal_condition_case
> (bfun=bfun@entry=0x5555556f55a0 <command_loop_1>, handlers=handlers@entry=0x90, hfun=hfun@entry=0x5555556e7b30 <cmd_error>) at eval.c:1712
> #16 0x00005555556df366 in command_loop_2 (handlers=0x90) at keyboard.c:1163
> #17 0x00005555557738fe in internal_catch
> (tag=tag@entry=0x12270, func=func@entry=0x5555556df340 <command_loop_2>, arg=arg@entry=0x90) at eval.c:1392
> #18 0x00005555556df303 in command_loop () at keyboard.c:1141
> #19 0x00005555556e76e1 in recursive_edit_1 () at keyboard.c:749
> #20 0x00005555556e7a68 in Frecursive_edit () at keyboard.c:832
> #21 0x00005555555f1de8 in main (argc=<optimized out>, argv=<optimized out>)
> at emacs.c:2635
> (gdb) fr 3
> #3 0x00007ffff7c1dfed in -[NSToolbar _removeItemAtIndex:broadcast:] (
> self=0x555557fb5980, _cmd=<optimized out>, index=0,
> broadcast=<optimized out>) at ./Source/NSToolbar.m:1284
> ⚠️ warning: 1284 ./Source/NSToolbar.m: Няма такъв файл или директория
> (gdb) po self
> <EmacsToolbar: 0x555557fb5980>
> (gdb) po _items
> ("<<NSToolbarItem: 0x555557fb5210> - <5864062930753Open>>", "<<NSToolbarItem: 0x555557fb4ac0> - <5864062916976Open Directory>>", "<<NSToolbarItem: 0x555557fb42f0> - <5864062922955Close>>", "<<NSToolbarItem: 0x555557fb3b20> - <5864062924951Save>>", "<<NSToolbarItem: 0x555557fb3350> - <5864062937190Undo>>", "<<NSToolbarItem: 0x555557fb2b80> - <5864062939314Cut>>", "<<NSToolbarItem: 0x555557fb23b0> - <5864062940411Copy>>", "<<NSToolbarItem: 0x555557fb1bc0> - <5864063816493Paste>>", "<<NSToolbarItem: 0x555557fb13f0> - <5864064151308Search>>")
> (gdb) down
> #2 0x00007ffff7c1dddd in -[NSToolbar _removeItemAtIndex:broadcast:] (
> self=0x555557a87500, _cmd=<optimized out>, index=0, broadcast=0 '\000')
> at ./Source/NSToolbar.m:1270
> 1270 in ./Source/NSToolbar.m
> (gdb) po self
> <EmacsToolbar: 0x555557a87500>
> (gdb) po _items
> ()
>
> Notice that in GDB frames 2 and 3 there are two distinct EmacsToolbar
> instances for a single Emacs frame. The one from GDB frame 2,
> 0x555557a87500, is a "parasite" object: it is initialized at frame
> creation and toolbar items are never insterted in it.
>
> GNUstep's NSToolbar implementation of -removeItemAtIndex: (called from
> EmacsToolbar -clearAll, nsmenu.m:1310) calls the private method
> -_removeItemAtIndex:broadcast: which calls itself recursively,
> dispatching the method call to all instances of the same class with
> identical identifiers (see the TRANSMIT macro definition in
> gnustep-gui/Source/NSToolbar.m:1205). The goal here is to update the
> toolbars of the app's other windows ("frames" in Emacs terminology) if
> the identifiers match.
>
> Because this first EmacsToolbar instance doesn't have any toolbar
> items, an exception occurs.
Alan, any comments to the patch? Because it's definitely
macOS-specific.
bug-gnu-emacs@HIDDEN:bug#81610; Package emacs.
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Date: Wed, 12 Aug 2026 16:54:06 +0300
Message-ID: <87mrurbg1t.GNU's_not_UNIX!-yavor@HIDDEN>
From: Yavor Doganov <yavor@HIDDEN>
To: bug-gnu-emacs@HIDDEN
Subject: 30.2; [PATCH] NS; NSRangeException when enabling tool-bar-mode
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If I customize the tool-bar-mode variable to nil then the toolbar is
not displayed, as expected. However, if I enable it explicitly with
the interactive command, an exception is thrown: a dialog "Critical
Error in emacs" appears containing "NSRangeException: Index 0 is out
of range 0 (in 'objectAtIndex:')". Emacs then aborts.
Steps to reproduce:
1. emacs -Q --eval "(tool-bar-mode -1)"
2. M-x tool-bar-mode RET
Backtrace and proposed patch below based on the master branch.
In GNU Emacs 30.2 (build 2, x86_64-pc-linux-gnu, NS
gnustep-gui-0.32.0) of 2026-07-04, modified by Debian built on
patilan
Windowing system distributor 'GNU', version 10.3.32
System Description: Debian GNU/Linux forky/sid
Configured using:
'configure --build x86_64-linux-gnu --prefix=/usr
--sharedstatedir=/var/lib --libexecdir=/usr/libexec
--localstatedir=/var/lib --infodir=/usr/share/info
--mandir=/usr/share/man --with-libsystemd --with-pop=yes
--enable-locallisppath=/etc/emacs:/usr/local/share/emacs/30.2/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/30.2/site-lisp:/usr/share/emacs/site-lisp
--with-sound=alsa --without-gconf --with-mailutils --build
x86_64-linux-gnu --prefix=/usr --sharedstatedir=/var/lib
--libexecdir=/usr/libexec --localstatedir=/var/lib
--infodir=/usr/share/info --mandir=/usr/share/man --with-libsystemd
--with-pop=yes
--enable-locallisppath=/etc/emacs:/usr/local/share/emacs/30.2/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/30.2/site-lisp:/usr/share/emacs/site-lisp
--with-sound=alsa --without-gconf --with-mailutils --with-ns
--disable-ns-self-contained --without-gif --without-jpeg
--without-png --without-rsvg --without-tiff --without-webp 'CFLAGS=-g
-O2 -Werror=implicit-function-declaration
-ffile-prefix-map=/build/reproducible-path/emacs-30.2+1=. -fstack-protector-strong
-fstack-clash-protection -Wformat -Werror=format-security
-fcf-protection -Wall' 'CPPFLAGS=-Wdate-time -D_FORTIFY_SOURCE=2'
LDFLAGS=-Wl,-z,relro'
Configured features:
ACL DBUS GMP GNUTLS GPM LCMS2 LIBSELINUX LIBSYSTEMD LIBXML2 MODULES
NATIVE_COMP NOTIFY INOTIFY NS PDUMPER SECCOMP SOUND SQLITE3 THREADS
TOOLKIT_SCROLL_BARS TREE_SITTER XIM ZLIB
(gdb) break -[NSException raise]
❌️ Function "-[NSException raise]" not defined.
Make breakpoint pending on future shared library load? (y or [n]) y
Breakpoint 1 (-[NSException raise]) pending.
(gdb) r -Q --eval "(tool-bar-mode -1)"
Starting program: /home/yavor/src/emacs/src/emacs -Q --eval "(tool-bar-mode -1)"
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/x86_64-linux-gnu/libthread_db.so.1".
⚠️ warning: Corrupted shared library list: 0x5555564e04b0 != 0x5555564df930
[New Thread 0x7fffe8d5e6c0 (LWP 246730)]
Thread 1 "emacs" hit Breakpoint 1, -[NSException raise] (self=0x5555574f8030,
_cmd=0x7ffff758d640 <_OBJC_SELECTOR_TABLE+128>)
at ./Source/NSException.m:1602
⚠️ warning: 1602 ./Source/NSException.m: Няма такъв файл или директория
(gdb) bt
#0 -[NSException raise]
(self=0x5555574f8030, _cmd=0x7ffff758d640 <_OBJC_SELECTOR_TABLE+128>)
at ./Source/NSException.m:1602
#1 0x00007ffff71c02b4 in -[GSArray objectAtIndex:]
(self=0x555557b78bc0, _cmd=<optimized out>, index=0)
at ./Source/GSArray.m:355
#2 0x00007ffff7c1dddd in -[NSToolbar _removeItemAtIndex:broadcast:]
(self=0x555557a87500, _cmd=<optimized out>, index=0, broadcast=0 '\000')
at ./Source/NSToolbar.m:1270
#3 0x00007ffff7c1dfed in -[NSToolbar _removeItemAtIndex:broadcast:]
(self=0x555557fb5980, _cmd=<optimized out>, index=0, broadcast=<optimized out>) at ./Source/NSToolbar.m:1284
#4 0x0000555555851b79 in -[EmacsToolbar clearAll]
(self=0x555557fb5980, _cmd=<optimized out>) at nsmenu.m:1310
#5 0x00005555558569de in update_frame_tool_bar_1
(f=0x5555560725a0, toolbar=0x555557fb5980) at nsmenu.m:1133
#6 0x0000555555662e44 in redisplay_window
(window=0x5555560f1105, just_this_one_p=just_this_one_p@entry=false)
at xdisp.c:21545
#7 0x0000555555663adb in redisplay_window_0 (window=<optimized out>)
at xdisp.c:18531
#8 0x0000555555773a29 in internal_condition_case_1
(bfun=bfun@entry=0x555555663ab0 <redisplay_window_0>, arg=0x5555560f1105, handlers=<optimized out>, hfun=hfun@entry=0x5555556149b0 <redisplay_window_error>) at eval.c:1736
#9 0x0000555555611c85 in redisplay_windows (window=0x5555560f1105)
at xdisp.c:18500
#10 0x0000555555647cc0 in redisplay_internal () at xdisp.c:17917
#11 0x0000555555649b75 in redisplay () at xdisp.c:17063
#12 0x00005555556f0582 in read_char
(commandflag=<optimized out>, map=map@entry=0x7fffecf61563, prev_event=<optimized out>, used_mouse_menu=used_mouse_menu@entry=0x7fffffffd76b, end_time=end_time@entry=0x0) at keyboard.c:2711
#13 0x00005555556f35e3 in read_key_sequence
(keybuf=keybuf@entry=0x7fffffffd8b0, prompt=prompt@entry=0x0, dont_downcase_last=dont_downcase_last@entry=false, can_return_switch_frame=can_return_switch_frame@entry=true, fix_current_buffer=fix_current_buffer@entry=true, prevent_redisplay=prevent_redisplay@entry=false, disable_text_conversion_p=false)
at keyboard.c:11224
#14 0x00005555556f5754 in command_loop_1 () at keyboard.c:1424
#15 0x00005555557739a4 in internal_condition_case
(bfun=bfun@entry=0x5555556f55a0 <command_loop_1>, handlers=handlers@entry=0x90, hfun=hfun@entry=0x5555556e7b30 <cmd_error>) at eval.c:1712
#16 0x00005555556df366 in command_loop_2 (handlers=0x90) at keyboard.c:1163
#17 0x00005555557738fe in internal_catch
(tag=tag@entry=0x12270, func=func@entry=0x5555556df340 <command_loop_2>, arg=arg@entry=0x90) at eval.c:1392
#18 0x00005555556df303 in command_loop () at keyboard.c:1141
#19 0x00005555556e76e1 in recursive_edit_1 () at keyboard.c:749
#20 0x00005555556e7a68 in Frecursive_edit () at keyboard.c:832
#21 0x00005555555f1de8 in main (argc=<optimized out>, argv=<optimized out>)
at emacs.c:2635
(gdb) fr 3
#3 0x00007ffff7c1dfed in -[NSToolbar _removeItemAtIndex:broadcast:] (
self=0x555557fb5980, _cmd=<optimized out>, index=0,
broadcast=<optimized out>) at ./Source/NSToolbar.m:1284
⚠️ warning: 1284 ./Source/NSToolbar.m: Няма такъв файл или директория
(gdb) po self
<EmacsToolbar: 0x555557fb5980>
(gdb) po _items
("<<NSToolbarItem: 0x555557fb5210> - <5864062930753Open>>", "<<NSToolbarItem: 0x555557fb4ac0> - <5864062916976Open Directory>>", "<<NSToolbarItem: 0x555557fb42f0> - <5864062922955Close>>", "<<NSToolbarItem: 0x555557fb3b20> - <5864062924951Save>>", "<<NSToolbarItem: 0x555557fb3350> - <5864062937190Undo>>", "<<NSToolbarItem: 0x555557fb2b80> - <5864062939314Cut>>", "<<NSToolbarItem: 0x555557fb23b0> - <5864062940411Copy>>", "<<NSToolbarItem: 0x555557fb1bc0> - <5864063816493Paste>>", "<<NSToolbarItem: 0x555557fb13f0> - <5864064151308Search>>")
(gdb) down
#2 0x00007ffff7c1dddd in -[NSToolbar _removeItemAtIndex:broadcast:] (
self=0x555557a87500, _cmd=<optimized out>, index=0, broadcast=0 '\000')
at ./Source/NSToolbar.m:1270
1270 in ./Source/NSToolbar.m
(gdb) po self
<EmacsToolbar: 0x555557a87500>
(gdb) po _items
()
Notice that in GDB frames 2 and 3 there are two distinct EmacsToolbar
instances for a single Emacs frame. The one from GDB frame 2,
0x555557a87500, is a "parasite" object: it is initialized at frame
creation and toolbar items are never insterted in it.
GNUstep's NSToolbar implementation of -removeItemAtIndex: (called from
EmacsToolbar -clearAll, nsmenu.m:1310) calls the private method
-_removeItemAtIndex:broadcast: which calls itself recursively,
dispatching the method call to all instances of the same class with
identical identifiers (see the TRANSMIT macro definition in
gnustep-gui/Source/NSToolbar.m:1205). The goal here is to update the
toolbars of the app's other windows ("frames" in Emacs terminology) if
the identifiers match.
Because this first EmacsToolbar instance doesn't have any toolbar
items, an exception occurs.
--Multipart_Wed_Aug_12_16:54:06_2026-1
Content-Type: text/plain; type=patch; charset=US-ASCII
Content-Disposition: attachment; filename="0001-NS-Fix-NSRangeException-when-enabling-tool-bar-mode.patch"
Content-Transfer-Encoding: 8bit
From 000bcd06ea7430485a6796a7c3fd032be7566103 Mon Sep 17 00:00:00 2001
From: Yavor Doganov <yavor@HIDDEN>
Date: Wed, 12 Aug 2026 16:44:33 +0300
Subject: [PATCH] NS: Fix NSRangeException when enabling tool-bar-mode
* src/nsmenu.m (free_frame_tool_bar): Don't call EmacsWindow
-setToolbar: with a nil argument; fixes NSRangeException when
enabling tool-bar-mode. (Bug#-1)
---
src/nsmenu.m | 2 --
1 file changed, 2 deletions(-)
diff --git a/src/nsmenu.m b/src/nsmenu.m
index ab6e7d7140d..a8177b95f35 100644
--- a/src/nsmenu.m
+++ b/src/nsmenu.m
@@ -1110,8 +1110,6 @@ - (NSRect)confinementRectForMenu:(NSMenu *)menu
[[[view window] toolbar] setVisible:NO];
f->output_data.ns->in_animation = 0;
- [[view window] setToolbar:nil];
-
unblock_input ();
}
--
2.55.0
--Multipart_Wed_Aug_12_16:54:06_2026-1--
Yavor Doganov <yavor@HIDDEN>:yavor@HIDDEN, bug-gnu-emacs@HIDDEN.
Full text available.yavor@HIDDEN, bug-gnu-emacs@HIDDEN:bug#81610; Package emacs.
Full text available.
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