The binary uses the 'seccomp' helper library. The library isn't
needed to load the generated Secure Computing filter.
* configure.ac: Check for 'seccomp' header and library.
* lib-src/seccomp-filter.c: New helper binary to generate a generic
Secure Computing filter for GNU/Linux.
* lib-src/Makefile.in (DONT_INSTALL): Add 'seccomp-filter' helper
binary if possible.
(all): Add Secure Computing filter file if possible.
(seccomp-filter$(EXEEXT)): Compile helper binary.
(seccomp-filter.bpf seccomp-filter.pfc): Generate filter files.
* test/src/emacs-tests.el (emacs-tests/seccomp/allows-stdout)
(emacs-tests/seccomp/forbids-subprocess): New unit tests.
* test/Makefile.in (src/emacs-tests.log): Add dependency on the helper
binary.
When passing this option on GNU/Linux, Emacs installs a Secure
Computing kernel system call filter. See Bug#45198.
* configure.ac: Check for seccomp header.
* src/emacs.c (usage_message): Document --seccomp option.
(emacs_seccomp): New wrapper for 'seccomp' syscall.
(load_seccomp, maybe_load_seccomp): New helper functions.
(main): Potentially load seccomp filters during startup.
(standard_args): Add --seccomp option.
* lisp/startup.el (command-line): Detect and ignore --seccomp option.
* test/src/emacs-tests.el (emacs-tests/seccomp/absent-file)
(emacs-tests/seccomp/empty-file)
(emacs-tests/seccomp/file-too-large)
(emacs-tests/seccomp/invalid-file-size): New unit tests.
(emacs-tests--with-temp-file): New helper macro.
* etc/NEWS: Document new --seccomp option.
All changes are autogenerated by running admin/merge-gnulib, except
for the change to merge-gnulib itself.
* admin/merge-gnulib (GNULIB_MODULES): Add 'read-file' module.
* src/xdisp.c (display_string): Revert adding the additional
ignore_text_properties parameter -- it was already covered by the
other mix of parameters.
* doc/lispref/modes.texi (Mode Line Basics): Document it (bug#34476).
* src/xdisp.c (display_mode_line): Use it.
(syms_of_xdisp): New variable mode-line-compact.
* doc/misc/flymake.texi (Customizable variables): Mention it.
* lisp/progmodes/flymake.el (flymake-mode-line-indicator-format):
New variable (bug#33740).
(flymake--mode-line-format): Use it.
* doc/lispref/strings.texi (Custom Format Strings): Document it.
* lisp/format-spec.el (format-spec): Add an optional parameter to
return a list of strings (bug#33740).
* lisp/progmodes/cc-langs.el (c-vsemi-status-unknown-p-fn): Reword
docstring to fit within 80 columns and silence the corresponding
byte-compiler warning (bug#44858).
* lisp/calendar/diary-lib.el (diary-face-attrs): The attributes
don't have to be at the end of the line -- there may be ##warntime
or other comments (bug#19965).
Fixes: bug#42149
The function completion-pcm--hilit-commonality, which propertizes and
scores a previously confirmed match, expected its PATTERN argument to
match the strings of COMPLETIONS entirely (i.e. up to the string's
very end). But sometimes the ending wildcard, represented by the
'any' atom in PATTERN, is optimized away by
completion-pcm--optimize-pattern. Although this is mostly benign in
terms of highlighting commonality, it leads to incorrect score values.
In this change, we ensure that completion-pcm--hilit-commonality is
aware of this exception and isn't affected by it. We also document
the function a bit better and simplify its workings.
Originally reported by Dario Gjorgjevski <dario.gjorgjevski@gmail.com>
* lisp/minibuffer.el (completion-pcm--hilit-commonality):
Simplify. Add docstring.
* lisp/minibuffer.el (completion-pcm--hilit-commonality): Add
docstring
* lisp/progmodes/cc-awk.el (c-awk-font-lock-invalid-namespace-separators):
New function.
(c-awk-context-expand-fl-region): New function.
(awk-font-lock-keywords): Enhance handling of function declarations to include
:: tokens. Fontify new system variable names FPAT, FUNCTAB, PREC, ROUNDMODE,
SYNTAB. Fontify new keywords BEGINFILE and ENDFILE. Fontify new system
functions asorti, dcngettext, isarray, patsplit, typeof. Fontify the new
directives @include, @load, @namespace. Call
c-awk-font-lock-invalid-namespace-separators as a matcher.
* lisp/progmodes/cc-fonts.el (top level): No longer require 'cc-awk.
* lisp/progmodes/cc-langs.el (c-before-context-fontification-functions): Give
AWK the value c-awk-context-expand-fl-region rather than nil.
* lisp/progmodes/cc-mode.el (top level): Declare awk-mode-syntax-table as a
variable.
(completion-pcm--optimize-pattern): Turn multiple consecutive
occurrences of `any` into just a single one.
Suggested by Dario Gjorgjevski <dario.gjorgjevski@gmail.com>.
* test/lisp/emacs-lisp/package-tests.el
(package-test-list-filter-by-name, package-test-list-clear-filter):
Use ansi-color instead of tetris, which no longer has a version:.
* src/nsmenu.m (ns_update_menubar): Don't assume that the top level
menus are correct when populating the submenus.
(free_frame_menubar): Clear the menu.
([EmacsMenu removeAllItems]): Actually remove all menu items.
* lisp/progmodes/xref.el (xref-show-definitions-buffer): Rename
from 'xref--show-defs-buffer'.
(xref-show-definitions-buffer-at-bottom): Rename from
'xref--show-defs-buffer-at-bottom'.
* lisp/emacs-lisp/eieio-opt.el (eieio-help-constructor): Amend
format to avoid two spaces for non-autoloaded object constructor
functions (bug#45454).
Copyright-paperwork-exempt: yes
Remove the frame tracking stuff as it's not used for anything, and
move the update tracking into the EmacsMenu class.
* src/nsmenu.m (ns_update_menubar): Copy the parsing code from xmenu.c
and rework the NS specific code around to update the existing menus
instead of rebuilding them completely.
(ns_activate_menubar):
([EmacsMenu trackingNotification:]):
([EmacsMenu menuWillOpen:]):
([EmacsMenu menuDidClose:]): Remove unused functions.
([EmacsMenu menuNeedsUpdate:]): Remove menu tracking code and add code
to check whether an update is required.
([EmacsMenu fillWithWidgetValue:]):
([EmacsMenu addSubmenuWithTitle:]):
([EmacsMenu initWithTitle:]): Remove references to frame.
([EmacsMenu setFrame:]): Remove method.
([EmacsMenu clear]): Rename to removeAllItems.
([EmacsMenu removeAllItems]): Use built-in removeAllItems, if
available.
(syms_of_nsmenu): Remove tracking code.
* src/nsterm.m (ns_check_menu_open):
(ns_check_pending_open_menu):
(ns_create_terminal): Remove unused functions.
(ns_term_init): Get rid of menu tracking.
* src/nsterm.h (EmacsMenu): Remove frame, add needsUpdate and update
method definitions.
* lisp/emacs-lisp/find-func.el (find-function-search-for-symbol): If
our regexp algorithm could not find a location for the symbol
definition, resort to find-function--search-by-expanding-macros.
* test/lisp/emacs-lisp/find-func-tests.el: Add a automatic test for a
function and variable generated by a macro.
* etc/NEWS: Advertise the improved functionality (bug#45443).
* doc/lispref/sequences.texi (Sequence Functions): Document them.
* lisp/emacs-lisp/byte-opt.el (side-effect-free-fns): Mark them as
side-effect-free.
* lisp/emacs-lisp/shortdoc.el (list): Mention them.
* src/fns.c (Flength): Mention them in the doc string.
(length_internal): New function.
(Flength_less, Flength_greater, Flength_equal): New defuns.
(syms_of_fns): Sym them.
(forms--intuit-from-file, forms-save-buffer): Use it.
(forms-mode): Use it to fix regression.
Remove always-true test. Fix incorrect uses of `fboundp`.
(forms--iif-hook): Use `add-hook`.
(forms--iif-post-command-hook): Use `remove-hook` and fix typo.
(forms--debug): Use `mapconcat`.
* lisp/calendar/todo-mode.el (todo-move-item, todo-item-undone)
(todo-category-completions): Use 'ngettext' instead of hard-coding
plural forms by hand.
Problem reported by Mattias Engdegård in:
https://lists.gnu.org/r/emacs-devel/2020-12/msg01626.html
* configure.ac: If the scratch_buffer module is enabled, create
lib/malloc and (if doing dependencies) lib/deps/malloc.
* lib/Makefile.in (DEPFLAGS) [AUTO_DEPEND]: No longer any need to
squash lib dependencies into a single directory.
(clean): Also remove */*.o and $(DEPDIR)/*/*.d, to clean out
malloc/*.o and deps/malloc/*.d. Just remove *.d files in
dependencies so that rm does not complain about not being able to
remove deps/malloc.
(extraclean): Also remove malloc, if it is empty.
