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Alan Mackenzie 48215c41d1 New debugging facility: backtraces from errors in Lisp called from redisplay 
Setting backtrace-on-redisplay-error to non-nil enables the generation of a
Lisp backtrace in buffer *Redisplay-trace* following an error in Lisp called
from redisplay.

* doc/lispref/debugging.texi (Debugging Redisplay): New subsection.
(Error Debugging): Reference to the new subsection.

* etc/NEWS: New entry for the new facility.

* src/eval.c (redisplay_deep_handler): New variable.
(init_eval): Initialize redisplay_deep_handler.
(call_debugger): Don't throw to top-level after calling debug-early
(internal_condition_case_n): "Bind" redisplay_deep_handler to the current
handler.
(backtrace_yet): New boolean variable.
(signal_or_quit): New code section to handle Lisp errors occurring in
redisplay.
(syms_of_eval): New DEFVAR_BOOL backtrace-on-redisplay-error.

* src/keyboard.c (command_loop_1): Set backtrace_yet to false each time around
the loop.
(safe_run_hooks_error): Allow args to be up to four Lisp_Objects long.
(safe_run_hooks_2): New function.

* src/lisp.h (top level): declare as externs backtrace_yet and
safe_run_hooks_2.

* src/xdisp.c (run_window_scroll_functions): Replace a call to
run_hook_with_args_2 with one to safe_run_hooks_2.
2022-08-11 19:31:09 +00:00
..
charsets ; Add 2022 to copyright years. 2022-01-01 02:45:51 -05:00
e Implement alternative sub-buffer support in term.el 2022-01-24 20:02:33 +01:00
forms ; Add 2022 to copyright years. 2022-01-01 02:45:51 -05:00
gnus
images ; Fix typos 2022-07-19 14:13:25 +02:00
nxml
org ; Add 2022 to copyright years. 2022-01-01 02:45:51 -05:00
refcards Merge from origin/emacs-28 2022-06-05 06:30:25 +02:00
schema ; Add 2022 to copyright years. 2022-01-01 02:45:51 -05:00
srecode Adjust better to Autoconf quoting style change 2022-07-05 23:27:17 -05:00
themes ; Fix typos 2022-08-08 14:23:29 +02:00
tutorials ; Fix typos. 2022-07-02 13:32:41 +02:00
AUTHORS ; Update ChangeLog and AUTHORS 2022-08-01 18:13:13 +02:00
CALC-NEWS ; Add 2022 to copyright years. 2022-01-01 02:45:51 -05:00
ChangeLog.1 ; Add 2022 to copyright years. 2022-01-01 02:45:51 -05:00
compilation.txt Add test for the gradle-android compilation message pattern 2022-07-11 12:29:12 +02:00
COPYING
DEBUG Support for debugging Emacs with LLDB 2022-07-11 14:08:05 +02:00
DEVEL.HUMOR ; * etc/DEVEL.HUMOR: Add a recent joke. 2022-02-11 10:15:20 +02:00
DISTRIB ; Add 2022 to copyright years. 2022-01-01 02:45:51 -05:00
edt-user.el ; Add 2022 to copyright years. 2022-01-01 02:45:51 -05:00
emacs-buffer.gdb ; Add 2022 to copyright years. 2022-01-01 02:45:51 -05:00
emacs-mail.desktop Hide emacs-mail.desktop, emacsclient-mail.desktop from menus 2021-07-02 13:09:18 +02:00
emacs.desktop Drop redundant keywords in .desktop files. 2021-08-11 14:05:25 +02:00
emacs.icon
emacs.metainfo.xml ; Add 2022 to copyright years. 2022-01-01 02:45:51 -05:00
emacs.service * etc/emacs.service: 2020-12-14 17:59:58 +01:00
emacs_lldb.py ; * etc/emacs_lldb.py: Don't print '->' in type summary 2022-08-02 09:12:47 +02:00
emacsclient-mail.desktop Hint that emacsclient.desktop should match a search for “emacsclient” 2021-08-11 14:05:14 +02:00
emacsclient.desktop Drop redundant keywords in .desktop files. 2021-08-11 14:05:25 +02:00
enriched.txt Document 'enriched-toggle-markup' 2022-05-20 15:03:06 +03:00
ERC-NEWS Update ERC's Info doc with network-ID related changes 2022-06-30 15:19:53 -07:00
ETAGS.EBNF ; Add 2022 to copyright years. 2022-01-01 02:45:51 -05:00
ETAGS.README ; Add 2022 to copyright years. 2022-01-01 02:45:51 -05:00
future-bug
gnus-tut.txt ; Add 2022 to copyright years. 2022-01-01 02:45:51 -05:00
grep.txt ; Add 2022 to copyright years. 2022-01-01 02:45:51 -05:00
HELLO Add support for the Meetei Mayek script 2022-06-13 16:55:20 +03:00
HISTORY Update logs and HISTORY for Emacs 28.1 2022-04-03 08:26:02 -04:00
JOKES
MACHINES Merge from origin/emacs-28 2022-01-01 07:03:03 -05:00
MH-E-NEWS ; Add 2022 to copyright years. 2022-01-01 02:45:51 -05:00
NEWS New debugging facility: backtraces from errors in Lisp called from redisplay 2022-08-11 19:31:09 +00:00
NEWS.1-17 (help-fns--first-release): Try and avoid false positives 2022-07-18 22:22:34 -04:00
NEWS.18 (help-fns--first-release): Try and avoid false positives 2022-07-18 22:22:34 -04:00
NEWS.19 (help-fns--first-release): Try and avoid false positives 2022-07-18 22:22:34 -04:00
NEWS.20 (help-fns--first-release): Try and avoid false positives 2022-07-18 22:22:34 -04:00
NEWS.21 (help-fns--first-release): Try and avoid false positives 2022-07-18 22:22:34 -04:00
NEWS.22 (help-fns--first-release): Try and avoid false positives 2022-07-18 22:22:34 -04:00
NEWS.23 (help-fns--first-release): Try and avoid false positives 2022-07-18 22:22:34 -04:00
NEWS.24 (help-fns--first-release): Try and avoid false positives 2022-07-18 22:22:34 -04:00
NEWS.25 (help-fns--first-release): Try and avoid false positives 2022-07-18 22:22:34 -04:00
NEWS.26 (help-fns--first-release): Try and avoid false positives 2022-07-18 22:22:34 -04:00
NEWS.27 (help-fns--first-release): Try and avoid false positives 2022-07-18 22:22:34 -04:00
NEWS.28 (help-fns--first-release): Try and avoid false positives 2022-07-18 22:22:34 -04:00
NEXTSTEP ; Add 2022 to copyright years. 2022-01-01 02:45:51 -05:00
NXML-NEWS ; Add 2022 to copyright years. 2022-01-01 02:45:51 -05:00
ORG-NEWS ; Fix typos: prefer American spelling 2022-07-13 13:04:22 +02:00
org.gnu.emacs.defaults.gschema.xml ; Add 2022 to copyright years. 2022-01-01 07:07:15 -05:00
package-keyring.gpg * etc/package-keyring.gpg: Add the 2019 key (backport) 2019-05-08 13:19:36 -04:00
PROBLEMS Merge from origin/emacs-28 2022-08-07 12:57:53 +02:00
ps-prin0.ps ; Add 2022 to copyright years. 2022-01-01 02:45:51 -05:00
ps-prin1.ps ; Add 2022 to copyright years. 2022-01-01 02:45:51 -05:00
publicsuffix.txt Update publicsuffix.txt from upstream 2022-08-01 06:01:07 +02:00
README ; Add 2022 to copyright years. 2022-01-01 02:45:51 -05:00
rgb.txt
ses-example.ses ; Add 2022 to copyright years. 2022-01-01 02:45:51 -05:00
spook.lines Add more spook.lines 2019-07-13 05:09:45 +02:00
TERMS ; Add 2022 to copyright years. 2022-01-01 02:45:51 -05:00
TODO Update TODO about fix_command 2022-08-08 16:03:25 +02:00
w32-feature.el ; Add 2022 to copyright years. 2022-01-01 02:45:51 -05:00
yow.lines

README 

This directory contains the architecture-independent files used by or
with Emacs.  This includes some text files of documentation for GNU
Emacs or of interest to Emacs users, and the file of dumped docstrings
for Emacs functions and variables.

COPYRIGHT AND LICENSE INFORMATION FOR IMAGE FILES

File: emacs.icon
  Author: Sun Microsystems, Inc
  Copyright (C) 1999, 2001-2022 Free Software Foundation, Inc.
  License: GNU General Public License version 3 or later (see COPYING)