Received: (at 78662-done) by debbugs.gnu.org; 1 Jun 2025 09:30:16 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sun Jun 01 05:30:15 2025 Received: from localhost ([127.0.0.1]:36482 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1uLf1C-0003SA-1I for submit <at> debbugs.gnu.org; Sun, 01 Jun 2025 05:30:15 -0400 Received: from mail-10629.protonmail.ch ([79.135.106.29]:27675) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <pipcet@HIDDEN>) id 1uLf16-0003QI-Oc for 78662-done <at> debbugs.gnu.org; Sun, 01 Jun 2025 05:30:12 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=protonmail.com; s=protonmail3; t=1748770201; x=1749029401; bh=PtfdsM7q6Ov4EGQyASwQRo3t6LpvbSOkl9s31lqehTg=; h=Date:To:From:Cc:Subject:Message-ID:In-Reply-To:References: Feedback-ID:From:To:Cc:Date:Subject:Reply-To:Feedback-ID: Message-ID:BIMI-Selector:List-Unsubscribe:List-Unsubscribe-Post; b=FA4to2cllZaS9EV+LxmC9BkD2tvdgGa7Pedqet9dFb01U5hhtg9gkURroWVjv7NDb xPAmq/9uj266mkOmnPaL8nHGodJVviDCrn0GvFYAQja7cOTRBy+1GyPL91M1u/zU0k WT7pqO24WPLrLga8bSO58PXWx4tgRj90wTP3G/GR+lMX1F6EB1J79psgnTesX7rZJk zBb1rU6coRiPC07UE8Zh1WWS8Uv4RB+0wk9UpjDbNLh3pfDNIsLZJEg981valpRCd/ Wp0W+IB6ZAHVuNpFhdP6lOkW6nRs291FBXPjWW3BB4Fz5OlGSVq3bQd6v14g0Q8c2m Q1dMxR5IjnqMQ== Date: Sun, 01 Jun 2025 09:29:55 +0000 To: Helmut Eller <eller.helmut@HIDDEN> From: Pip Cet <pipcet@HIDDEN> Subject: Re: bug#78662: feature/igc: [PATCH] Make buffer_local_symbols exact roots Message-ID: <87sekjern4.fsf@HIDDEN> In-Reply-To: <87v7pfkgcv.fsf@HIDDEN> References: <87v7pfkgcv.fsf@HIDDEN> Feedback-ID: 112775352:user:proton X-Pm-Message-ID: 85ec204029cb7c8f98e6ce7719f16c13fa0522bb MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 78662-done Cc: 78662-done <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: -1.0 (-) "Helmut Eller" <eller.helmut@HIDDEN> writes: > Tracing buffer_local_symbols and buffer_defaults exactly as in > the patch seems to work. Thanks. I see no reason why it wouldn't work, and it doesn't crash, so I've pushed it and am closing the bug. I did note that buffer_defaults.text changes from NULL to &buffer_defaults.own_text on the first scan, but this seems harmless to me. If these strange objects (no MPS header, these two have a vectorlike header but buffer_local_flags doesn't, not necessarily lisp-aligned) cause any trouble, we could always allocate them on the MPS heap, giving us the very slight benefit of putting some words behind a barrier. Pip
Helmut Eller <eller.helmut@HIDDEN>
:Pip Cet <pipcet@HIDDEN>
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Sun, 01 Jun 2025 01:37:06 -0700 (PDT) Received: from caladan ([89.107.110.32]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-ada5d7fed8bsm620810166b.28.2025.06.01.01.37.05 for <bug-gnu-emacs@HIDDEN> (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 01 Jun 2025 01:37:05 -0700 (PDT) From: Helmut Eller <eller.helmut@HIDDEN> To: bug-gnu-emacs@HIDDEN Subject: feature/igc: [PATCH] Make buffer_local_symbols exact roots X-Debbugs-Cc: Date: Sun, 01 Jun 2025 10:37:04 +0200 Message-ID: <87v7pfkgcv.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="=-=-=" Received-SPF: pass client-ip=2a00:1450:4864:20::630; envelope-from=eller.helmut@HIDDEN; helo=mail-ej1-x630.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: 1.0 (+) X-Debbugs-Envelope-To: submit 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: -0.0 (/) --=-=-= Content-Type: text/plain Tracing buffer_local_symbols and buffer_defaults exactly as in the patch seems to work. --=-=-= Content-Type: text/x-diff Content-Disposition: attachment; filename=0001-Make-buffer_defaults-and-buffer_local_symbols-exact-.patch From f1709d2c66f4cb88af2645f61e761fc50e10384c Mon Sep 17 00:00:00 2001 From: Helmut Eller <eller.helmut@HIDDEN> Date: Sun, 1 Jun 2025 10:29:58 +0200 Subject: [PATCH] Make buffer_defaults and buffer_local_symbols exact roots * src/igc.c (root_create_buffer): Create exact roots. (scan_buffer): New helper. --- src/igc.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/src/igc.c b/src/igc.c index 9c3c8e82758..f63b0fe8c88 100644 --- a/src/igc.c +++ b/src/igc.c @@ -2196,6 +2196,14 @@ fix_buffer (mps_ss_t ss, struct buffer *b) return MPS_RES_OK; } +static mps_res_t +scan_buffer (mps_ss_t ss, void *start, void *end, void *closure) +{ + igc_assert (PSEUDOVECTOR_TYPE (start) == PVEC_BUFFER); + igc_assert ((char *) end - (char *) start == sizeof (struct buffer)); + return fix_buffer (ss, start); +} + static mps_res_t fix_glyph_pool (mps_ss_t ss, struct glyph_pool *pool) { @@ -2887,8 +2895,7 @@ root_create_lispsym (struct igc *gc) static void root_create_buffer (struct igc *gc, struct buffer *b) { - void *start = &b->name_, *end = &b->own_text; - root_create_ambig (gc, start, end, "buffer"); + root_create_exact (gc, b, b + 1, scan_buffer, "buffer"); } static void -- 2.39.5 --=-=-=--
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:bug-gnu-emacs@HIDDEN
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