Merge branch 'master' into feature/igc

CONTRIBUTE

@@ -241,6 +241,8 @@ formatting them:
   there will be no individual ChangeLog entries beyond the one in the
   summary line.
 
+- If the commit message is a single-line, it should end with a period.
+
 - If the commit has more than one author, the commit message should
   contain separate lines to mention the other authors, like the
   following:

admin/MAINTAINERS

@@ -245,9 +245,6 @@ Sean Whitton
 ==============================================================================
 2. Areas that someone is willing to maintain, although he would not
 necessarily mind if someone else was the official maintainer.
-This list also includes people who are in the process of handing over
-maintainership to someone listed above, but who want to continue to be
-CC'd as though they were still the primary maintainer, in the meantime.
 ==============================================================================
 
 Eli Zaretskii
@@ -342,7 +339,6 @@ Tassilo Horn
 
 Dmitry Gutov
 	lisp/whitespace.el
-	lisp/vc/*
 
 Vibhav Pant
        lisp/net/browse-url.el

admin/gnulib-patches/lib/getloadavg.c.diff

@@ -0,0 +1,14 @@
+diff --git a/lib/getloadavg.c b/lib/getloadavg.c
+index 9da41c16c02..1cb1c01097d 100644
+--- a/lib/getloadavg.c
++++ b/lib/getloadavg.c
+@@ -499,7 +499,8 @@ getloadavg (double loadavg[], int nelem)
+   }
+ # endif
+ 
+-# if !defined (LDAV_DONE) && (defined __linux__ || defined __ANDROID__)
++# if !defined (LDAV_DONE) && (defined __linux__ || defined __ANDROID__) \
++  && (!defined __ANDROID__ || __ANDROID_API__ >= 13)
+                                       /* Linux without glibc, Android, Cygwin */
+ #  define LDAV_DONE
+ #  undef LOAD_AVE_TYPE

admin/merge-gnulib

@@ -58,7 +58,7 @@ GNULIB_MODULES='
 AVOIDED_MODULES='
   access btowc chmod close crypto/af_alg dup fchdir fstat gnulib-i18n
   iswblank iswctype iswdigit iswxdigit langinfo-h libgmp-mpq
-  localename-unsafe-limited lock
+  locale-h localename-unsafe-limited lock
   mbrtowc mbsinit memchr mkdir msvc-inval msvc-nothrow nl_langinfo
   openat-die opendir pthread-h raise
   save-cwd select setenv sigprocmask stat stdarg-h
@@ -80,6 +80,10 @@ case $src in
   *) src=$src/ ;;
 esac
 
+GNULIB_TOOL_FLAGS="$GNULIB_TOOL_FLAGS
+  --local-dir="$src"admin/gnulib-patches
+"
+
 # Gnulib's source directory.
 gnulib_srcdir=${1-$src../gnulib}
 

admin/notes/emba

@@ -91,7 +91,7 @@ emba.gnu.org:5050, is not accessible publicly.  Instead, the container
 images must be build locally.  Change the current directory to a
 recent Emacs branch (not a worktree), and apply the command
 
-  docker build --target emacs-inotify --tag emacs-inotify \
+  docker buildx build --target emacs-inotify --tag emacs-inotify \
     -f test/infra/Dockerfile.emba .
 
 This creates the Debian-based image emacs-inotify, based on the

admin/notes/tree-sitter/build-module/build.sh

@@ -59,8 +59,11 @@ case "${lang}" in
         sourcedir="tree-sitter-typescript/tsx/src"
         grammardir="tree-sitter-typescript/tsx"
         ;;
+    "toml")
+        org="tree-sitter-grammars"
+        ;;
     "yaml")
-        org="ikatyang"
+        org="tree-sitter-grammars"
         ;;
 esac
 

admin/nt/dist-build/emacs.nsi

@@ -72,6 +72,9 @@ Section
 
   # add registry key to enable uninstall from control panel
   WriteRegStr HKLM "${UNINST_KEY}" "DisplayName" "GNU Emacs ${VERSION_BRANCH}"
+  WriteRegStr HKLM "${UNINST_KEY}" "DisplayIcon" "$\"$UninstallerPath$\""
+  WriteRegStr HKLM "${UNINST_KEY}" "DisplayVersion" "${VERSION_BRANCH}"
+  WriteRegStr HKLM "${UNINST_KEY}" "Publisher" "Free Software Foundation, Inc."
   WriteRegStr HKLM "${UNINST_KEY}" "UninstallString" "$\"$UninstallerPath$\""
 
   ;Create shortcuts

admin/tree-sitter/treesit-admin.el

@@ -72,31 +72,33 @@
 ;;; Query validation
 
 (defvar treesit-admin--builtin-language-sources
-  '((c "https://github.com/tree-sitter/tree-sitter-c")
+  '((c "https://github.com/tree-sitter/tree-sitter-c" "v0.23.4")
-    (cpp "https://github.com/tree-sitter/tree-sitter-cpp")
+    (cpp "https://github.com/tree-sitter/tree-sitter-cpp" "v0.23.4")
-    (cmake "https://github.com/uyha/tree-sitter-cmake")
+    (cmake "https://github.com/uyha/tree-sitter-cmake" "v0.5.0")
-    (dockerfile "https://github.com/camdencheek/tree-sitter-dockerfile")
+    (dockerfile "https://github.com/camdencheek/tree-sitter-dockerfile" "v0.2.0")
-    (go "https://github.com/tree-sitter/tree-sitter-go")
+    (go "https://github.com/tree-sitter/tree-sitter-go" "v0.23.4")
-    (ruby "https://github.com/tree-sitter/tree-sitter-ruby")
+    (ruby "https://github.com/tree-sitter/tree-sitter-ruby" "v0.23.1")
-    (javascript "https://github.com/tree-sitter/tree-sitter-javascript")
+    (javascript "https://github.com/tree-sitter/tree-sitter-javascript" "v0.23.1")
     (typescript "https://github.com/tree-sitter/tree-sitter-typescript"
-                nil "typescript/src")
+                "v0.23.2" "typescript/src")
     (tsx "https://github.com/tree-sitter/tree-sitter-typescript"
-         nil "tsx/src")
+         "v0.23.2" "tsx/src")
-    (json "https://github.com/tree-sitter/tree-sitter-json")
+    (json "https://github.com/tree-sitter/tree-sitter-json" "v0.24.8")
-    (rust "https://github.com/tree-sitter/tree-sitter-rust")
+    (rust "https://github.com/tree-sitter/tree-sitter-rust" "v0.23.2")
     (php "https://github.com/tree-sitter/tree-sitter-php"
-         nil "php/src")
+         "v0.23.11" "php/src")
-    (css "https://github.com/tree-sitter/tree-sitter-css")
+    (css "https://github.com/tree-sitter/tree-sitter-css" "v0.23.1")
     (phpdoc "https://github.com/claytonrcarter/tree-sitter-phpdoc")
-    (doxygen "https://github.com/tree-sitter-grammars/tree-sitter-doxygen")
+    (doxygen "https://github.com/tree-sitter-grammars/tree-sitter-doxygen" "v1.1.0")
-    (lua "https://github.com/tree-sitter-grammars/tree-sitter-lua")
+    (lua "https://github.com/tree-sitter-grammars/tree-sitter-lua" "v0.3.0")
-    (python "https://github.com/tree-sitter/tree-sitter-python")
+    (python "https://github.com/tree-sitter/tree-sitter-python" "v0.23.6")
-    (html "https://github.com/tree-sitter/tree-sitter-html")
+    (html "https://github.com/tree-sitter/tree-sitter-html" "v0.23.2")
-    (elixir "https://github.com/elixir-lang/tree-sitter-elixir")
+    (elixir "https://github.com/elixir-lang/tree-sitter-elixir" "v0.3.3")
-    (heex "https://github.com/phoenixframework/tree-sitter-heex")
+    (heex "https://github.com/phoenixframework/tree-sitter-heex" "v0.7.0")
-    (java "https://github.com/tree-sitter/tree-sitter-java")
+    (java "https://github.com/tree-sitter/tree-sitter-java" "v0.23.5")
-    (jsdoc "https://github.com/tree-sitter/tree-sitter-jsdoc"))
+    (jsdoc "https://github.com/tree-sitter/tree-sitter-jsdoc" "v0.23.2")
+    (toml "https://github.com/tree-sitter-grammars/tree-sitter-toml" "v0.7.0")
+    (yaml "https://github.com/tree-sitter-grammars/tree-sitter-yaml" "v0.7.0"))
   "A list of sources for the builtin modes.
 The source information are in the format of
 `treesit-language-source-alist'.  This is for development only.")
@@ -154,9 +156,7 @@ queries that has problems with latest grammar."
             (unless (memq language (alist-get mode mode-language-alist))
               (push language (alist-get mode mode-language-alist)))
             ;; Validate query.
-            (when (not (ignore-errors
+            (unless (treesit-query-valid-p language query)
-                         (treesit-query-compile language query t)
-                         t))
               (push (list mode language feature) invalid-feature-list)
               (setq all-queries-valid nil))))
         (when all-queries-valid
@@ -259,9 +259,7 @@ Return non-nil if all queries are valid, nil otherwise."
              (language (treesit-query-language query)))
         ;; Validate query.
         (when (and (eq lang language)
-                   (not (ignore-errors
+                   (not (treesit-query-valid-p language query)))
-                          (treesit-query-compile language query t)
-                          t)))
           (setq all-queries-valid nil))))
     all-queries-valid))
 

configure.ac

@@ -1866,6 +1866,7 @@ AS_IF([test $gl_gcc_warnings = no],
     gl_WARN_ADD([$w])
   done
   gl_WARN_ADD([-Wredundant-decls])     # Prefer this, as we don't use Bison.
+  gl_WARN_ADD([-Wtrailing-whitespace]) # This project's coding style
   gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
   gl_WARN_ADD([-Wno-override-init])    # More trouble than it is worth
   gl_WARN_ADD([-Wno-sign-compare])     # Too many warnings for now
@@ -2239,7 +2240,7 @@ AC_CACHE_CHECK([for flags to work around GCC bug 58416],
 	       [AC_LANG_DEFINES_PROVIDED
 		[/* Work around GCC bug with double in unions on x86,
 		    where the generated insns copy non-floating-point data
-		    via fldl/fstpl instruction pairs.  This can misbehave
+		    via fldl/fstpl instruction pairs.  This can misbehave if
 		    the data's bit pattern looks like a NaN.  See, e.g.:
 		       https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58416#c10
 		       https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71460

doc/emacs/building.texi

@@ -674,6 +674,9 @@ Run the SDB debugger.
 using the minibuffer.  The minibuffer's initial contents contain the
 standard executable name and options for the debugger, and sometimes
 also a guess for the name of the executable file you want to debug.
+For @code{pdb}, @code{perldb}, and @code{guiler}, if the current buffer
+visits a file, pressing @kbd{M-n} (@code{next-history-element})
+in the prompt suggests a full command line including that file name.
 Shell wildcards and variables are not allowed in this command line.
 Emacs assumes that the first command argument which does not start
 with a @samp{-} is the executable file name.

doc/emacs/custom.texi

@@ -2165,6 +2165,10 @@ You can similarly enter the Shift, Control, and Meta modifiers by
 using @kbd{C-x @@ S}, @kbd{C-x @@ c}, and @kbd{C-x @@ m}, respectively,
 although this is rarely needed.
 
+  On graphical terminals, you can enable the Modifier Bar mode, which
+allows simulating the missing modifier keys by clicking a tool-bar
+button.  @xref{Tool Bars}.
+
 @node Function Keys
 @subsection Rebinding Function Keys
 
@@ -2965,9 +2969,19 @@ Emacs will set @code{user-emacs-directory} to the directory it decides
 to use.  This directory is subsequently used to look for your other
 user-specific Emacs files, such as @code{custom-file} (@pxref{Saving
 Customizations}), the saved desktop (@pxref{Saving Emacs Sessions}) and
-others.  The @code{--init-directory} command-line option (@pxref{Initial
+others.  It is also used to compute the value of the
-Options}) overrides the value of @code{user-emacs-directory} determined
+@code{native-comp-eln-load-path} (@pxref{Lisp Libraries}), which is
-as side effect of the search for your user init file described above.
+where Emacs looks for natively-compiled Lisp code and where it deposits
+the newly-compiled Lisp code produced by asynchronous compilation of
+packages your init files and the subsequent Emacs session load.  The
+@code{--init-directory} command-line option (@pxref{Initial Options})
+overrides the value of @code{user-emacs-directory} determined as side
+effect of the search for your user init file described above.
+
+Since @code{user-emacs-directory}, once determined by Emacs, is used by
+the rest of the startup code to locate other files and directories, we
+do not recommend changing its value in your init files, as that could
+disrupt or break the correct startup of your Emacs sessions.
 
 Although this is backward-compatible with older Emacs versions, modern
 POSIX platforms prefer putting your initialization files under

doc/emacs/display.texi

@@ -1811,6 +1811,21 @@ formats by setting each of the variables @code{eol-mnemonic-unix},
 @code{eol-mnemonic-dos}, @code{eol-mnemonic-mac}, and
 @code{eol-mnemonic-undecided} to the strings you prefer.
 
+@vindex mode-line-compact
+@vindex mode-line-collapse-minor-modes
+  Some modes put a lot of data in the mode line, pushing elements at the
+end of the mode line off to the right.  Emacs can ``compress'' the mode
+line if the @code{mode-line-compact} variable is non-@code{nil} by
+turning stretches of spaces into a single space.  If this variable is
+@code{long}, this is only done when the mode line is wider than the
+currently selected window.  (This computation is approximate, based on
+the number of characters, and not their displayed width.)  This variable
+can be buffer-local to only compress mode-lines in certain buffers.  To
+further ``compress'' the mode line, you may customize the
+@code{mode-line-collapse-minor-modes} option to a non-@code{nil} value,
+and Emacs will hide some minor mode indicators on the mode line by
+collapsing them into a single clickable button.
+
 @node Text Display
 @section How Text Is Displayed
 @cindex characters (in text)

doc/emacs/files.texi

@@ -1093,7 +1093,7 @@ type @kbd{M-x normal-mode} to re-read them.
 Here is another example, with the time stamp inserted into
 the last paragraph of an HTML document.
 Since this template is at the end of the document, not in the first
-eight lines, @code{time-stamp-format} starts with @code{-10/} to tell
+eight lines, @code{time-stamp-pattern} starts with @code{-10/} to tell
 @code{time-stamp} to look at the last 10 lines.
 The @code{%%} asks for the default format
 (specified by @code{time-stamp-format}).
@@ -2529,7 +2529,7 @@ select a group of images to copy somewhere else).  The @kbd{m}
 (@code{image-mode-mark-file}) command will mark the current file in
 any Dired buffer(s) that display the current file's directory.  If no
 such buffer is open, the directory is opened in a new buffer.  To
-unmark files, use the @kbd{u} (@code{image-mode-mark-file}) command.
+unmark files, use the @kbd{u} (@code{image-mode-unmark-file}) command.
 Finally, if you just want to copy the current buffers file name to the
 kill ring, you can use the @kbd{w}
 (@code{image-mode-copy-file-name-as-kill}) command.

doc/emacs/frames.texi

@@ -1346,15 +1346,18 @@ displayed by moving the mouse pointer to the top of the screen.
 @cindex displaying modifier keys in the tool bar
 @cindex mode, Modifier Bar
 @cindex Modifier Bar
-  Keyboards often lack one or more of the modifier keys that Emacs
+  Keyboards often lack one or more of the modifier keys (@pxref{Modifier
-might want to use, making it difficult or impossible to input key
+Keys}) that Emacs users might want to use, making it difficult or
-sequences that contain them.  Emacs can optionally display a list of
+impossible to input key sequences with these modifiers.  For example,
-buttons that act as substitutes for modifier keys within the tool bar;
+many keyboards lack the Hyper and Super modifiers, and smartphones
-these buttons are also referred to as the ``modifier bar''.  Clicking
+usually also lack Ctrl and Alt modifiers.  Emacs can optionally display
-an icon within the modifier bar will cause a modifier key to be
+a tool bar of buttons that can substitute the modifier keys; this
-applied to the next keyboard event that is read.  The modifier bar is
+additional tool bar is known as the @dfn{modifier bar}.  Clicking a
-displayed when the global minor mode @code{modifier-bar-mode} is
+button within the modifier bar will cause the modifier key shown on the
-enabled; to do so, type @kbd{M-x modifier-bar-mode}.
+button to be applied to the next keyboard event that Emacs reads.  The
+modifier bar is displayed when the global minor mode
+@code{modifier-bar-mode} is enabled; to do so, type @kbd{M-x
+modifier-bar-mode}.
 
 @node Tab Bars
 @section Tab Bars

doc/emacs/kmacro.texi

@@ -472,9 +472,9 @@ C-x C-k b 4
 will bind the last keyboard macro to the key sequence @kbd{C-x C-k 4}.
 
 @findex insert-kbd-macro
-  Once a macro has a command name, you can save its definition in a file.
+  You can save a macro's definition in a file.  Then it can be used in
-Then it can be used in another editing session.  First, visit the file
+another editing session.  First, visit the file you want to save the
-you want to save the definition in.  Then use this command:
+definition in.  Then use this command:
 
 @example
 M-x insert-kbd-macro @key{RET} @var{macroname} @key{RET}
@@ -494,6 +494,9 @@ additional Lisp code to record the keys (if any) that you have bound
 to @var{macroname}, so that the macro will be reassigned the same keys
 when you load the file.
 
+  If you do not give @code{insert-kbd-macro} a macro name, it will
+insert Lisp code to restore the @code{last-kdb-macro}.
+
 @node Edit Keyboard Macro
 @section Editing a Keyboard Macro
 

doc/emacs/maintaining.texi

@@ -190,8 +190,8 @@ which it refers to as @dfn{back ends}:
 @item
 Git is a decentralized version control system originally invented by
 Linus Torvalds to support development of Linux (his kernel).  VC
-supports many common Git operations, but others, such as repository
+supports all the common Git operations, but notably, Git rebases other
-syncing, must be done from the command line.
+than simply to edit a commit message must be done from the command line.
 
 @cindex CVS
 @item
@@ -235,8 +235,7 @@ everything you can do with RCS can be done through VC.
 @cindex Mercurial
 @item
 Mercurial (hg) is a decentralized version control system broadly
-resembling Git.  VC supports most Mercurial commands, with the
+resembling Git.  VC supports most Mercurial commands.
-exception of repository sync operations.
 
 @cindex bzr
 @cindex Bazaar
@@ -1783,20 +1782,18 @@ more programs.  Files that belong to a project are typically stored in
 a hierarchy of directories; the top-level directory of the hierarchy
 is known as the @dfn{project root}.
 
-@cindex project back-end
+@cindex project backend
   Whether a given directory is a root of some project is determined by
-the project-specific infrastructure, known as @dfn{project back-end}.
+the project-specific infrastructure, known as @dfn{project backend}.
-Emacs currently supports two such back-ends: VC-aware (@pxref{Version
+Emacs currently supports two such backends: VC-aware (@pxref{Version
 Control}), whereby a VCS repository is considered a project; and EDE
 (@pxref{EDE}).  This is expected to be extended in the future to
 support additional types of projects.
 
   Which files do or don't belong to a project is also determined by
-the project back-end.  For example, the VC-aware back-end doesn't
+the project backend.  For example, the VC-aware backend doesn't
 consider ``ignored'' files (@pxref{VC Ignore}) to be part of the
-project.  Also, the VC-aware Project back-end considers ``untracked''
+project.  See its entry below for description and related options.
-files by default.  That behavior is controllable with the variable
-@code{project-vc-include-untracked}.
 
 @cindex current project name on mode line
 @defopt project-mode-line
@@ -1811,6 +1808,7 @@ The default value is @code{nil}.
 * Project Buffer Commands:: Commands for handling project buffers.
 * Switching Projects::      Switching between projects.
 * Managing Projects::       Managing the project list file.
+* VC-Aware Project Backend:: Default project backend.
 @end menu
 
 @node Project File Commands
@@ -2050,6 +2048,50 @@ matched against the project root, and the predicate should take the
 project object as the only argument and return non-@code{nil} if the
 project should @emph{not} be saved to @code{project-list-file}.
 
+@cindex VC-aware project backend
+@cindex project backend, VC-aware
+@node VC-Aware Project Backend
+This backend is part of Emacs and is enabled by default.  (Other
+backends may need installation of add-on packages and their proper
+configuration.)
+
+It determines the contents of the project based on the VCS repository's
+configuration (if any), excluding the ``ignored'' files from the output.
+
+It has some performance optimizations for listing the files with some of
+the popular VCS systems (currently Git and Mercurial).
+
+@defopt project-vc-include-untracked
+By default, files which are neither registered with nor ignored by the
+VCS are considered part of the project.  Customize this variable to nil
+to change that.
+@end defopt
+
+@defopt project-vc-ignores
+Using this variable you can add more ignore patterns to the project, to
+exclude more files from the project's file listing.  The value is a list
+of glob strings.  They can match both regular files and directories.  To
+anchor an entry to the project root, start it with @code{./}.  To match
+directories only, end it with @code{/}.
+@end defopt
+
+@defopt project-vc-name
+This variable allows you to change the automatically detected name of
+the project to a string of your choice.  By default the name is the base
+name of its root directory.
+@end defopt
+
+@defopt project-vc-extra-root-markers
+This variable allows you to set up detection of non-VC projects in this
+backend, and also to have some subdirectories detected as separate
+projects.  The value is a list.
+
+Each element is either a base file name or a glob pattern for such.
+
+Example values: @file{.dir-locals.el}, @file{package.json},
+@file{requirements.txt}, @file{*.gemspec}.
+@end defopt
+
 @node Change Log
 @section Change Logs
 

doc/emacs/misc.texi

@@ -2924,11 +2924,15 @@ can use @kbd{M-x desktop-read} to restore a previously-saved desktop
 if the current Emacs session didn't load any desktop yet.
 
 @vindex desktop-restore-frames
-  By default, the desktop tries to save and restore the frame and
+  By default, the desktop tries to save and restore the frame and window
-window configuration.  To disable this, set
+configuration.@footnote{
-@code{desktop-restore-frames} to @code{nil}.  (See that variable's
+Except on Android, where this option defaults to @code{nil} because the
-documentation for some related options that you can customize to
+window manager (@pxref{Android Windowing}) is too prohibitive, and
-fine-tune this behavior.)
+doesn't allow restoring frame configurations.}
+To disable or enable this, set @code{desktop-restore-frames} to
+@code{nil} or any non-@code{nil} value respectively.  (See that
+variable's documentation for some related options that you can customize
+to fine-tune this behavior.)
 
 @vindex frameset-filter-alist
   When the desktop restores the frame and window configuration, it
@@ -2968,8 +2972,8 @@ invoking @kbd{M-x desktop-read} next.  The @code{desktop-clear}
 command kills all buffers except for internal ones, and clears the
 global variables listed in @code{desktop-globals-to-clear}.  If you
 want it to preserve certain buffers, customize the variable
-@code{desktop-clear-preserve-buffers-regexp}, whose value is a regular
+@code{desktop-clear-preserve-buffers}, whose value is a list of regular
-expression matching the names of buffers not to kill.
+expressions matching the names of buffers not to kill.
 
 @vindex desktop-globals-to-save
   If you want to save minibuffer history from one session to

doc/emacs/package.texi

@@ -654,7 +654,13 @@ maintainer, you can use the command @code{package-report-bug} to
 report a bug via Email.  This report will include all the user options
 that you have customized.  If you have made a change you wish to share
 with the maintainers, first commit your changes then use the command
-@code{package-vc-prepare-patch} to share it.  @xref{Preparing Patches}.
+@code{package-vc-prepare-patch} to share it.
+@iftex
+@xref{Preparing Patches,,,emacs-xtra, Specialized Emacs Features}.
+@end iftex
+@ifnottex
+@xref{Preparing Patches}.
+@end ifnottex
 
 @findex package-vc-install-from-checkout
 @findex package-vc-rebuild

doc/emacs/programs.texi

@@ -958,11 +958,11 @@ argument specifies the number of levels to go down.
 
 @node Matching
 @subsection Matching Parentheses
-@cindex matching parentheses
+@cindex matching, parentheses and other paired delimiters
 @cindex parentheses, displaying matches
 
-  Emacs has a number of @dfn{parenthesis matching} features, which
+  Emacs has a number of @dfn{parenthesis matching} features, which make
-make it easy to see how and whether parentheses (or other delimiters)
+it easy to see how and whether parentheses (or other paired delimiters)
 match up.
 
   Whenever you type a self-inserting character that is a closing
@@ -1063,16 +1063,17 @@ nonblank line.
 @findex electric-pair-mode
   Electric Pair mode, a global minor mode, provides a way to easily
 insert matching delimiters: parentheses, braces, brackets, etc.
-Whenever you insert an opening delimiter, the matching closing
+Whenever you insert an opening delimiter, the matching closing delimiter
-delimiter is automatically inserted as well, leaving point between the
+is automatically inserted as well, leaving point between the two.
-two.  Conversely, when you insert a closing delimiter over an existing
+However, if you insert a closing delimiter where one already exists
-one, no insertion takes places, and that position is simply skipped
+(probably a mistake, since typing the opening delimiter inserted the
-over.  If the region is active (@pxref{Mark}), insertion of a
+closing one for you), Emacs simply moves point to after the closing
-delimiter operates on the region: the characters in the region are
+delimiter, skipping the insertion.  If the region is active
-enclosed in a pair of matching delimiters, leaving point after the
+(@pxref{Mark}), insertion of a delimiter operates on the region: the
-delimiter you typed.  If you provide a prefix argument when inserting
+characters in the region are enclosed in a pair of matching delimiters,
-a delimiter, the numeric value of that prefix argument specifies the
+leaving point after the delimiter you typed.  If you provide a prefix
-number of pairs to insert.
+argument when inserting a delimiter, the numeric value of that prefix
+argument specifies the number of pairs to insert.
 
 These variables control additional features of Electric Pair mode:
 

doc/emacs/search.texi

@@ -341,7 +341,7 @@ down-casing.
 @kindex M-s M-.
 @findex isearch-forward-thing-at-point
   To begin a new incremental search with the text near point yanked
-into the initial search string, type @kbd{M-s M-.} that runs the
+into the initial search string, type @kbd{M-s M-.}, which runs the
 command @code{isearch-forward-thing-at-point}.  If the region was
 active, then it yanks the text from the region into the search string.
 Otherwise, it tries to yank a URL, a symbol or an expression found

doc/emacs/vc1-xtra.texi

@@ -312,7 +312,14 @@ If you expect to contribute patches on a regular basis, you can set
 the user option @code{vc-default-patch-addressee} to the address(es)
 you wish to use.  This will be used as the default value when invoking
 @code{vc-prepare-patch}.  Project maintainers may consider setting
-this as a directory local variable (@pxref{Directory Variables}).
+this as a directory local variable
+@iftex
+(@pxref{Directory Variables,,Per-Directory Local Variables,
+emacs, the Emacs Manual}).
+@end iftex
+@ifnottex
+(@pxref{Directory Variables}).
+@end ifnottex
 
 @node Customizing VC
 @subsection Customizing VC

doc/lispintro/emacs-lisp-intro.texi

@@ -940,21 +940,21 @@ same time, and then press and release @kbd{t}.)
 
 Also, I often refer to one of Emacs's standard commands by listing the
 keys which you press to invoke the command and then giving the name of
-the command in parentheses, like this: @kbd{M-C-\}
+the command in parentheses, like this: @kbd{C-M-\}
 (@code{indent-region}).  What this means is that the
 @code{indent-region} command is customarily invoked by typing
-@kbd{M-C-\}.  (You can, if you wish, change the keys that are typed to
+@kbd{C-M-\}.  (You can, if you wish, change the keys that are typed to
 invoke the command; this is called @dfn{rebinding}.  @xref{Keymaps, ,
-Keymaps}.)  The abbreviation @kbd{M-C-\} means that you type your
+Keymaps}.)  The abbreviation @kbd{C-M-\} means that you type your
-@key{META} key, @key{CTRL} key and @kbd{\} key all at the same time.
+@key{CTRL} key, @key{META} key, and @kbd{\} key all at the same time.
 (On many modern keyboards the @key{META} key is labeled
 @key{ALT}.)
 Sometimes a combination like this is called a keychord, since it is
 similar to the way you play a chord on a piano.  If your keyboard does
 not have a @key{META} key, the @key{ESC} key prefix is used in place
-of it.  In this case, @kbd{M-C-\} means that you press and release your
+of it.  In this case, @kbd{C-M-\} means that you press and release your
 @key{ESC} key and then type the @key{CTRL} key and the @kbd{\} key at
-the same time.  But usually @kbd{M-C-\} means press the @key{CTRL} key
+the same time.  But usually @kbd{C-M-\} means press the @key{CTRL} key
 along with the key that is labeled @key{ALT} and, at the same time,
 press the @kbd{\} key.
 
@@ -962,7 +962,7 @@ In addition to typing a lone keychord, you can prefix what you type
 with @kbd{C-u}, which is called the @dfn{universal argument}.  The
 @kbd{C-u} keychord passes an argument to the subsequent command.
 Thus, to indent a region of plain text by 6 spaces, mark the region,
-and then type @w{@kbd{C-u 6 M-C-\}}.  (If you do not specify a number,
+and then type @w{@kbd{C-u 6 C-M-\}}.  (If you do not specify a number,
 Emacs either passes the number 4 to the command or otherwise runs the
 command differently than it would otherwise.)  @xref{Arguments, ,
 Numeric Arguments, emacs, The GNU Emacs Manual}.
@@ -1258,7 +1258,7 @@ Interaction mode or Emacs Lisp mode, you have available to you several
 commands to format the Lisp expression so it is easy to read.  For
 example, pressing the @key{TAB} key automatically indents the line the
 cursor is on by the right amount.  A command to properly indent the
-code in a region is customarily bound to @kbd{M-C-\}.  Indentation is
+code in a region is customarily bound to @kbd{C-M-\}.  Indentation is
 designed so that you can see which elements of a list belong to which
 list---elements of a sub-list are indented more than the elements of
 the enclosing list.

doc/lispref/display.texi

@@ -404,8 +404,10 @@ elapsed since the time the first message was emitted.
 
 @defvar inhibit-message
 When this variable is non-@code{nil}, @code{message} and related functions
-will not display any messages in the Echo Area.  Echo-area messages
+will not display any messages in the Echo Area, and will also not clear
-are still logged in the @file{*Messages*} buffer, though.
+previous echo-area messages when @code{message} is called with a
+@code{nil} or an empty argument.  Echo-area messages are still logged in
+the @file{*Messages*} buffer, though.
 @end defvar
 
 @defmac with-temp-message message &rest body
@@ -4122,6 +4124,14 @@ available, since it also checks whether the coding system for the text
 terminal can encode the character (@pxref{Terminal I/O Encoding}).
 @end defun
 
+@defun char-displayable-on-frame-p char frame
+This function behaves like @code{char-displayable-p} does (relative to
+@var{frame}), but in the graphical case, it does not perform the final
+check of whether the underlying text terminal can encode the character.
+It thus provides a displayability check for @var{char} more specific to
+@var{frame}.
+@end defun
+
 @node Low-Level Font
 @subsection Low-Level Font Representation
 @cindex font property
@@ -5607,12 +5617,20 @@ instead of the text that has the display specification.
 
 @item (slice @var{x} @var{y} @var{width} @var{height})
 This specification together with @code{image} specifies a @dfn{slice}
-(a partial area) of the image to display.  The elements @var{y} and
+(a partial area) of the image to display.  More precisely, the
-@var{x} specify the top left corner of the slice, within the image;
+specification should have the following form:
-@var{width} and @var{height} specify the width and height of the
+
-slice.  Integers are numbers of pixels.  A floating-point number
+@lisp
-in the range 0.0--1.0 stands for that fraction of the width or height
+ ((slice @var{x} @var{y} @var{width} @var{height}) @var{image-desc})
-of the entire image.
+@end lisp
+
+@noindent
+where @var{image-desc} is an image descriptor described above.  The
+elements @var{x} and @var{y} specify the top left corner of the slice,
+within the image; @var{width} and @var{height} specify the width and
+height of the slice.  Integers are numbers of pixels.  A floating-point
+number in the range 0.0--1.0 stands for that fraction of the width or
+height of the entire image.
 
 @item ((margin nil) @var{string})
 A display specification of this form means to display @var{string}

doc/lispref/frames.texi

@@ -2839,8 +2839,11 @@ than deleted.
 @end deffn
 
 The following function checks whether a frame can be safely deleted.  It
-is useful to avoid that a subsequent call of @code{delete-frame} throws
+is useful for avoiding the situation whereby a subsequent call of
-an error.
+@code{delete-frame} fails to delete its argument @var{frame} and/or
+signals an error.  To that end, your Lisp program should call
+@code{delete-frame} only if the following function returns
+non-@code{nil}.
 
 @defun frame-deletable-p &optional frame
 This function returns non-@code{nil} if the frame specified by

doc/lispref/modes.texi

@@ -1510,9 +1510,6 @@ You can thus get the full benefit of adaptive filling
  (see the variable `adaptive-fill-mode').
 \\@{text-mode-map@}
 Turning on Text mode runs the normal hook `text-mode-hook'."
-@end group
-@group
-  (setq-local text-mode-variant t)
   (setq-local require-final-newline mode-require-final-newline))
 @end group
 @end smallexample
@@ -2152,17 +2149,6 @@ windows, you can say something like:
 @end lisp
 @end defun
 
-@vindex mode-line-compact
-  Some modes put a lot of data in the mode line, pushing elements at
-the end of the mode line off to the right.  Emacs can ``compress'' the
-mode line if the @code{mode-line-compact} variable is non-@code{nil}
-by turning stretches of spaces into a single space.  If this variable
-is @code{long}, this is only done when the mode line is wider than the
-currently selected window.  (This computation is approximate, based on
-the number of characters, and not their displayed width.)  This
-variable can be buffer-local to only compress mode-lines in certain
-buffers.
-
 @node Mode Line Data
 @subsection The Data Structure of the Mode Line
 @cindex mode line construct

doc/lispref/os.texi

@@ -1953,14 +1953,18 @@ This is a synonym for @samp{%H:%M:%S}.
 This stands for the numeric day of week (1--7).  Monday is day 1.
 @item %U
 This stands for the week of the year (01--52), assuming that weeks
-start on Sunday.
+start on Sunday.  If January 1 is not a Sunday, the first partial week
+is week zero.
 @item %V
-This stands for the week of the year according to ISO 8601.
+This stands for the week of the year according to ISO 8601.  Note that,
+unlike @samp{%U} and @samp{%W}, the week according to ISO 8601 does
+@emph{not} roll over to 1 on January 1, but keeps its last number.
 @item %w
 This stands for the numeric day of week (0--6).  Sunday is day 0.
 @item %W
-This stands for the week of the year (01--52), assuming that weeks
+This stands for the week of the year (01--52), assuming that weeks start
-start on Monday.
+on Monday.  If January 1 is not a Monday, the first partial week is week
+zero.
 @item %x
 This has a locale-specific meaning.  In the default locale (named
 @samp{C}), it is equivalent to @samp{%D}.

doc/lispref/parsing.texi

@@ -1814,12 +1814,12 @@ ranges for each parser are correct before using parsers in a buffer, and
 call @code{treesit-language-at} to figure out the language responsible
 for the text at some position.  These two functions don't work by
 themselves; they need major modes to set @code{treesit-range-settings}
-and @code{treesit-language-at-point-function}, which do the actual work.
+and optionally @code{treesit-language-at-point-function}, which do the actual work.
 These functions and variables are explained in more detail towards the
 end of the section.
 
 In short, multi-language major modes should set
-@code{treesit-primary-parser}, @code{treesit-range-settings}, and
+@code{treesit-primary-parser}, @code{treesit-range-settings}, and optionally
 @code{treesit-language-at-point-function} before calling
 @code{treesit-major-mode-setup}.
 
@@ -1921,9 +1921,9 @@ This function returns the language of the text at buffer position
 @var{pos}.  Under the hood it calls
 @code{treesit-language-at-point-function} and returns its return
 value.  If @code{treesit-language-at-point-function} is @code{nil},
-this function returns the language of the first parser in the returned
+this function returns the language of the deepest parser by embed level
-value of @code{treesit-parser-list}.  If there is no parser in the
+among parsers returned by @code{treesit-parsers-at}.  If there is no
-buffer, it returns @code{nil}.
+parser at that buffer position, it returns @code{nil}.
 @end defun
 
 @heading Supporting multiple languages in major modes
@@ -2011,7 +2011,7 @@ directly translate into operations shown above.
 @end group
 
 @group
-;; Major modes with multiple languages should always set
+;; Major modes with multiple languages can optionally set
 ;; `treesit-language-at-point-function' (which see).
 (setq treesit-language-at-point-function
       (lambda (pos)
@@ -2094,17 +2094,45 @@ language of the buffer text at @var{pos}.  This variable is used by
 @code{treesit-language-at}.
 @end defvar
 
-@defun treesit-local-parsers-at &optional pos language
+@defun treesit-parsers-at &optional pos language with-host only
+This function returns all parsers at @var{pos} in the current buffer.
+@var{pos} defaults to point.  The returned parsers are sorted by the
+decreasing embed level.
+
+If @var{language} is non-@code{nil}, return parsers only for that
+language.
+
+If @var{with-host} is non-@code{nil}, return a list of
+@w{@code{(@var{parser} . @var{host-parser})}} where @var{host-parser}
+is the host parser which created the @var{parser}.
+
+If @var{only} is non-@code{nil}, return all parsers including the
+primary parser.
+
+The argument @var{only} can be a list of symbols that specify what
+parsers to include in the return value.
+
+If @var{only} contains the symbol @code{local}, include local parsers.
+Local parsers are those which only parse a limited region marked by an
+overlay with a non-@code{nil} @code{treesit-parser-local-p} property.
+
+If @var{only} contains the symbol @code{global}, include non-local parsers
+excluding the primary parser.
+
+If @var{only} contains the symbol `primary', include the primary parser.
+@end defun
+
+@defun treesit-local-parsers-at &optional pos language with-host
 This function returns all the local parsers at @var{pos} in the
 current buffer.  @var{pos} defaults to point.
 
 Local parsers are those which only parse a limited region marked by an
-overlay with a non-@code{nil} @code{treesit-parser} property.  If
+overlay with a non-@code{nil} @code{treesit-parser-local-p} property.
-@var{language} is non-@code{nil}, only return parsers for that
+If @var{language} is non-@code{nil}, only return parsers for that
 language.
 @end defun
 
-@defun treesit-local-parsers-on &optional beg end language
+@defun treesit-local-parsers-on &optional beg end language with-host
 This function is the same as @code{treesit-local-parsers-at}, but it
 returns the local parsers in the range between @var{beg} and @var{end}
 instead of at point.

doc/lispref/text.texi

@@ -1932,7 +1932,7 @@ they default to the whole buffer.
 This function adjusts the indentation at the beginning of the current
 line to the value specified by the variable @code{left-margin}.  (That
 may involve either inserting or deleting whitespace.)  This function
-is value of @code{indent-line-function} in Paragraph-Indent Text mode.
+is the value of @code{indent-line-function} in Paragraph-Indent Text mode.
 @end defun
 
 @defopt left-margin
@@ -5366,11 +5366,17 @@ available in this Emacs session.
 When SQLite support is available, the following functions can be used.
 
 @cindex database object
-@defun sqlite-open &optional file
+@defun sqlite-open &optional file readonly disable-uri
 This function opens @var{file} as an SQLite database file.  If
 @var{file} doesn't exist, a new database will be created and stored in
 that file.  If @var{file} is omitted or @code{nil}, a new in-memory
-database is created instead.
+database is created instead.  Second optional argument @var{readonly},
+if non-@code{nil}, means open the database only for reading; the
+database must already exist in that case.  By default, @var{file} can be
+a @file{file://} URI as well as a file name; in the unusual case that
+you have a local file whose name begins with @file{file:}, specify a
+non-@code{nil} value for the third optional argument @var{disable-uri}
+to disable the automatic recognition and processing of URIs.
 
 The return value is a @dfn{database object} that can be used as the
 argument to most of the subsequent functions described below.

doc/lispref/tips.texi

@@ -73,18 +73,13 @@ not meant to be used by other packages.
 Occasionally, for a command name intended for users to use, it is more
 convenient if some words come before the package's name prefix.  For
 example, it is our convention to have commands that list objects named
-as @samp{list-@var{something}}, e.g., a package called @samp{frob}
+as @samp{list-@var{something}}, e.g., a package called @samp{frob} could
-could have a command @samp{list-frobs}, when its other global symbols
+have a command @samp{list-frobs}, when its other global symbols begin
-begin with @samp{frob-}.  Also, constructs that define functions,
+with @samp{frob-}.  Also, constructs that define functions, variables,
-variables, etc., work better if they start with @samp{define-}, so put
+etc., may work better if they start with @samp{define-}, so it's okay to
-the name prefix later on in the name.
+put the name prefix later on in the name.  Outside of these
-
+well-established cases, however, err on the side of prepending your name
-This recommendation applies even to names for traditional Lisp
+prefix.
-primitives that are not primitives in Emacs Lisp---such as
-@code{copy-list}.  Believe it or not, there is more than one plausible
-way to define @code{copy-list}.  Play it safe; append your name prefix
-to produce a name like @code{foo-copy-list} or @code{mylib-copy-list}
-instead.
 
 If you write a function that you think ought to be added to Emacs under
 a certain name, such as @code{twiddle-files}, don't call it by that name

doc/lispref/windows.texi

@@ -2256,7 +2256,7 @@ unless stated otherwise.
 counterclockwise.
 @cindex rotate window layout
 
-@deffn Command rotate-window-layout-clockwise &optional window
+@deffn Command window-layout-rotate-clockwise &optional window
 This command rotates the window layout clockwise by 90 degrees.  Imagine
 a layout with three live windows @var{A}, @var{B} and @var{C} as
 depicted on the left below.  Then this command will produce the layout
@@ -2276,8 +2276,8 @@ on the right.
 @end smallexample
 @end deffn
 
-@deffn Command rotate-window-layout-counterclockwise &optional window
+@deffn Command window-layout-rotate-anticlockwise &optional window
-This is like @code{rotate-window-layout-clockwise} but rotates the
+This is like @code{window-layout-rotate-clockwise} but rotates the
 layout in the opposite direction as demonstrated in the example below.
 
 @smallexample
@@ -2298,7 +2298,7 @@ The next two commands @sc{flip} the window layout---rotate it around an
 imaginary horizontal or vertical axis.
 @cindex flip window layout
 
-@deffn Command flip-window-layout-vertically &optional window
+@deffn Command window-layout-flip-topdown &optional window
 This command flips windows such that windows on the bottom become
 windows on the top and vice-versa as in the example below.
 
@@ -2316,7 +2316,7 @@ windows on the top and vice-versa as in the example below.
 @end smallexample
 @end deffn
 
-@deffn Command flip-window-layout-horizontally &optional window
+@deffn Command window-layout-flip-leftright &optional window
 This command rearranges window in a way that the windows on the right
 become the window on the left, and vice-versa.
 
@@ -2338,7 +2338,7 @@ The next command can be used for @sc{transposing} windows---changing
 horizontal splits to vertical ones and vice-versa.
 @cindex transposing windows
 
-@deffn Command transpose-window-layout &optional window
+@deffn Command window-layout-transpose &optional window
 This command reorganizes windows such that every horizontal split
 becomes a vertical split and vice versa.
 

doc/misc/efaq-w32.texi

@@ -353,6 +353,7 @@ not bundled with Emacs.  @xref{Other useful ports}.
 @section What is my init file?
 @cindex .emacs
 @cindex init file
+@cindex early init file
 
 When Emacs starts up, it attempts to load and execute the contents of
 a file commonly called @file{.emacs} (though it may have other names,
@@ -362,22 +363,31 @@ code to your .emacs, or you can use the Customization interface
 accessible from the @emph{Options} menu.  If the file does not exist,
 Emacs will start with the default settings.
 
+In addition, Emacs 27 and later attempts to load and execute the
+contents of the @file{early-init.el} file.  As its name suggests, this
+file, if it exists, is loaded and executed early on during the Emacs
+startup sequence, before @code{.emacs}, and is intended to contain the
+few initializations which must be performed before @file{.emacs} is
+looked up and loaded.
+
 @node Location of init file
 @section Where do I put my init file?
 @cindex HOME directory
 @cindex .emacs.d
 @cindex _emacs
 @cindex init.el
+@cindex early-init.el
 @cindex registry, setting the HOME directory in
 
-On Windows, the @file{.emacs} file may be called @file{_emacs} for
+On Windows, the @file{.emacs} init file may be called @file{_emacs} for
 backward compatibility with DOS and FAT filesystems where filenames
 could not start with a dot.  Some users prefer to continue using such
 a name due to historical problems various Windows tools had in the
 past with file names that begin with a dot.  The init file may also be
-called @file{.emacs.d/init.el}.  Many of the other files that are
+called @file{.emacs.d/init.el}.  The @file{early-init.el} file and many
-created by Lisp packages are stored in the @file{.emacs.d} directory
+of the other files that are created by Lisp packages are stored in the
-too, which keeps all your Emacs related files in one place.
+@file{.emacs.d} directory too, which keeps all your Emacs related files
+in one place.
 
 All the files mentioned above should go in your @env{HOME} directory.
 The @env{HOME} directory is determined by following the steps below:
@@ -2157,7 +2167,7 @@ MSYS2 is an independent rewrite of MSYS, based on modern Cygwin and
 MinGW-w64 with the aim of better interoperability with native Windows
 software.  It plays the same role MSYS does in MinGW.  Being a
 distribution, MSYS2 provides tools to build software as well as more
-than 2.600 precompiled packages ready for use.
+than 2600 precompiled packages ready for use.
 
 @node EZWinPorts
 @section EZWinPorts

doc/misc/ert.texi

@@ -134,11 +134,11 @@ package @file{pp.el}):
 ;; (pp-to-string '('a 'b))                ; same as above
 @end lisp
 
-The code contained in these comments can be evaluated from time to
+The Lisp forms contained in these comments can be evaluated from time to
-time to compare the output with the expected output.  ERT formalizes
+time, e.g. with @kbd{C-x C-e}, to compare the output with the expected
-this and introduces a common convention, which simplifies Emacs
+output.  ERT formalizes this and introduces a common convention, which
-development, since programmers no longer have to manually find and
+simplifies Emacs development, since programmers no longer have to
-evaluate such comments.
+manually find and evaluate such comments.
 
 An ERT test definition equivalent to the above comments is this:
 

doc/misc/flymake.texi

@@ -62,7 +62,7 @@ To learn about using Flymake, @pxref{Using Flymake}.
 When the Emacs LSP support mode Eglot is enabled, Flymake will use that
 as an additional back-end.  @xref{Eglot Features,,, eglot, Eglot: The
 Emacs LSP Client}.  Flymake is also designed to be easily extended to
-support new backends via an Elisp interface.  @xref{Extending Flymake}.
+support new backends via an Elisp interface.  @xref{Flymake API}.
 
 @ifnottex
 @insertcopying
@@ -70,7 +70,7 @@ support new backends via an Elisp interface.  @xref{Extending Flymake}.
 
 @menu
 * Using Flymake::
-* Extending Flymake::
+* Flymake API::
 * The legacy Proc backend::
 * GNU Free Documentation License::
 * Index::
@@ -178,6 +178,10 @@ listing includes the type of the diagnostic, its line and column in
 the file, as well as the diagnostic message.  You may sort the listing
 by each of these columns.
 
+When invoked on a diagnostic (either via the keyboard or a mouse click)
+the command @code{flymake-show-buffer-diagnostics} attempts to reveal
+said diagnostic in the listing.
+
 @node Mode line status
 @section Mode line status
 @cindex flymake mode line
@@ -210,7 +214,7 @@ investigate and remedy the situation (@pxref{Troubleshooting}).
 @item @code{?}
 @tab There are no applicable Flymake backends for this buffer, thus Flymake
 cannot annotate it.  To fix this, a user may look to extending Flymake
-and add a new backend (@pxref{Extending Flymake}).
+and add a new backend (@pxref{Flymake API}).
 
 @end multitable
 
@@ -313,6 +317,9 @@ The indicator type which Flymake should use to indicate lines with
 errors or warnings.
 Depending on your preference, this can either use @code{fringes} or
 @code{margins} for indicating errors.
+If set to @code{fringes} (the default), it will automatically fall back
+to using margins in windows or frames without fringes, such as text
+terminals.
 
 @item flymake-error-bitmap
 A bitmap used in the fringe to mark lines for which an error has
@@ -344,9 +351,14 @@ If non-@code{nil}, moving to errors with @code{flymake-goto-next-error} and
 @item flymake-show-diagnostics-at-end-of-line
 If non-@code{nil}, show summarized descriptions of diagnostics at the
 end of the line.  Depending on your preference, this can either be
-distracting and easily confused with actual code, or a significant
+distracting and easily confused with actual code, or a significant early
-early aid that relieves you from moving around or reaching for the
+aid that relieves you from moving around or reaching for the mouse to
-mouse to consult an error message.
+consult an error message.  This value may also be set to @code{fancy},
+which will attempt to layout diagnostics below the affected line using
+unicode graphics to point to diagnostic locus.
+
+@item flymake-diagnostic-format-alist
+Control which parts of a diagnostic to show in various situations.
 
 @item flymake-error-eol
 A custom face for summarizing diagnostic error messages.
@@ -358,19 +370,23 @@ A custom face for summarizing diagnostic warning messages.
 A custom face for summarizing diagnostic notes.
 @end vtable
 
-@node Extending Flymake
+@node Flymake API, The legacy Proc backend, Using Flymake, Top
-@chapter Extending Flymake
+@chapter Flymake API
 @cindex extending flymake
 
-Flymake can primarily be extended in one of two ways:
+Flymake's API supports the following use cases:
 
 @enumerate
 @item
-By changing the look and feel of the annotations produced by the
+Changing the look and feel of the annotations produced by the
 different backends.  @xref{Flymake error types}.
 
 @item
-By adding a new buffer-checking backend.  @xref{Backend functions}.
+Adding a new buffer-checking backend.  @xref{Backend functions}.
+
+@item
+Writing extension to and process Flymake's output. @xref{Inspecting
+diagnostics}.
 @end enumerate
 
 The following sections discuss each approach in detail.
@@ -378,6 +394,7 @@ The following sections discuss each approach in detail.
 @menu
 * Flymake error types::
 * Backend functions::
+* Inspecting diagnostics::
 @end menu
 
 @node Flymake error types
@@ -670,37 +687,19 @@ reports targeting other parts of the buffer remain valid.
 Before delivering them to Flymake, backends create diagnostic objects
 by calling the function @code{flymake-make-diagnostic}.
 
-@deffn Function flymake-make-diagnostic locus beg end type text &optional data
+@deffn Function flymake-make-diagnostic locus beg end type info &optional data
 Make a Flymake diagnostic for the region of text in @var{locus}'s
-delimited by @var{beg} and @var{end}.  @var{type} is a diagnostic
+delimited by @var{beg} and @var{end}.  @var{type} is a diagnostic symbol
-symbol (@pxref{Flymake error types}), and @var{text} is a description
+(@pxref{Flymake error types}).  @var{text} can be a string or a list
-of the problem detected in this region.  Most commonly @var{locus} is
+(@var{origin} @var{code} @var{message}) appropriately categorizing and
-the buffer object designating for the current buffer being
+describing the diagnostic.  Most commonly, @var{locus} is the buffer
-syntax-checked.  However, it may be a string naming a file relative
+object designating for the current buffer being syntax-checked.
-to the current working directory.  @xref{Foreign and list-only
+However, it may be a string naming a file relative to the current
-diagnostics}, for when this may be useful.  Depending on the type of
+working directory.  @xref{Foreign and list-only diagnostics}, for when
-@var{locus}, @var{beg} and @var{end} are both either buffer positions
+this may be useful.  Depending on the type of @var{locus}, @var{beg} and
-or conses (@var{line} . @var{col}) which specify the line and column
+@var{end} are both either buffer positions or conses (@var{line}
-of the diagnostic's start and end positions, respectively.
+. @var{col}) which specify the line and column of the diagnostic's start
-@end deffn
+and end positions, respectively.
-
-@cindex access diagnostic object
-These objects' properties can be accessed with the functions
-@code{flymake-diagnostic-backend}, @code{flymake-diagnostic-buffer},
-@code{flymake-diagnostic-text}, @code{flymake-diagnostic-beg},
-@code{flymake-diagnostic-end}, @code{flymake-diagnostic-type} and
-@code{flymake-diagnostic-data}.
-
-Additionally, the function @code{flymake-diagnostics} will collect
-such objects in the region you specify.
-
-@cindex collect diagnostic objects
-@deffn Function flymake-diagnostics beg end
-Get a list of Flymake diagnostics in the region determined by
-@var{beg} and @var{end}.  If neither @var{beg} or @var{end} is
-supplied, use the whole buffer, otherwise if @var{beg} is
-non-@code{nil} and @var{end} is @code{nil}, consider only diagnostics
-at @var{beg}.
 @end deffn
 
 @cindex buffer position from line and column number
@@ -859,7 +858,7 @@ Binding,,, elisp, The Emacs Lisp Reference Manual}) to be active.
                       ;;
                       (cl-loop
                        while (search-forward-regexp
-                              "^\\(?:.*.rb\\|-\\):\\([0-9]+\\): \\(.*\\)$"
+                              "^\\(?:.*\\.rb\\|-\\):\\([0-9]+\\): \\(.*\\)$"
                               nil t)
                        for msg = (match-string 2)
                        for (beg . end) = (flymake-diag-region
@@ -897,6 +896,32 @@ Binding,,, elisp, The Emacs Lisp Reference Manual}) to be active.
 @end group
 @end example
 
+@node Inspecting diagnostics
+@section Inspecting diagnostics
+
+When Flymake has called on the backend and collected its diagnostics, it
+will annotate the buffer with it.  After this happens, Elisp programs
+may call @code{flymake-diagnostics} to collect such objects in a
+specified region.
+
+@cindex collect diagnostic objects
+@deffn Function flymake-diagnostics beg end
+Get a list of Flymake diagnostics in the region determined by
+@var{beg} and @var{end}.  If neither @var{beg} or @var{end} is
+supplied, use the whole buffer, otherwise if @var{beg} is
+non-@code{nil} and @var{end} is @code{nil}, consider only diagnostics
+at @var{beg}.
+@end deffn
+
+@cindex access diagnostic object
+A diagnostic object's properties can be accessed with the functions
+@code{flymake-diagnostic-backend}, @code{flymake-diagnostic-buffer},
+@code{flymake-diagnostic-origin}, @code{flymake-diagnostic-code}
+@code{flymake-diagnostic-message}, @code{flymake-diagnostic-beg},
+@code{flymake-diagnostic-end}, @code{flymake-diagnostic-type} and
+@code{flymake-diagnostic-data}.  @code{flymake-diagnostic-text} will
+compose the diagnostic's origin, code and message in a single string.
+
 @node The legacy Proc backend
 @chapter The legacy ``Proc'' backend
 @cindex legacy proc backend

doc/misc/modus-themes.org

@@ -4,9 +4,9 @@
 #+language: en
 #+options: ':t toc:nil author:t email:t num:t
 #+startup: content
-#+macro: stable-version 4.6.0
+#+macro: stable-version 4.7.0
-#+macro: release-date 2024-10-27
+#+macro: release-date 2025-04-17
-#+macro: development-version 4.7.0-dev
+#+macro: development-version 4.8.0-dev
 #+macro: file @@texinfo:@file{@@$1@@texinfo:}@@
 #+macro: space @@texinfo:@: @@
 #+macro: kbd @@texinfo:@kbd{@@$1@@texinfo:}@@
@@ -88,7 +88,7 @@ The Modus themes consist of eight themes, divided into four subgroups.
   are variants of the two main themes.  They slightly tone down the
   intensity of the background and provide a bit more color variety.
   ~modus-operandi-tinted~ has a set of base tones that are shades of
-  light ocher (earthly colors), while ~modus-vivendi-tinted~ gives a
+  light ochre (earthly colors), while ~modus-vivendi-tinted~ gives a
   night sky impression.
 
 - Deuteranopia themes :: ~modus-operandi-deuteranopia~ and its
@@ -1309,37 +1309,32 @@ Examples demonstrating how to use the aforementioned:
 #+findex: modus-themes-list-colors
 The command ~modus-themes-list-colors~ uses minibuffer completion to
 select an item from the Modus themes and then produces a buffer with
-previews of its color palette entries.  The buffer has a naming scheme
+previews of all of its color palette entries.
-that reflects the given choice, like =modus-operandi-list-colors= for
-the ~modus-operandi~ theme.
 
 #+findex: modus-themes-list-colors-current
 The command ~modus-themes-list-colors-current~ skips the minibuffer
-selection process and just produces a preview for the current Modus
+selection process to produce a preview for the current Modus theme.
-theme.
 
 When called with a prefix argument (=C-u= with the default key
 bindings), these commands will show a preview of the palette's
-semantic color mappings instead of the named colors.  In this context,
+semantic color mappings instead of the full palette ([[#h:34c7a691-19bb-4037-8d2f-67a07edab150][Option for palette overrides]]).
-"named colors" are entries that associate a symbol to a string color
-value, such as =(blue-warmer "#354fcf")=.  Whereas "semantic color
-mappings" associate a named color to a symbol, like =(string
-blue-warmer)=, thus making the theme render all string constructs in
-the =blue-warmer= color value ([[#h:34c7a691-19bb-4037-8d2f-67a07edab150][Option for palette overrides]]).
 
 #+findex: modus-themes-preview-colors
 #+findex: modus-themes-preview-colors-current
-Aliases for those commands are ~modus-themes-preview-colors~ and
+Aliases for these commands are ~modus-themes-preview-colors~ and
 ~modus-themes-preview-colors-current~.
 
-Each row shows a foreground and background coloration using the
+Each row includes a foreground and background rendition of the given
-underlying value it references.  For example a line with =#a60000= (a
+color value. For example a line with =#a60000= (a shade of red) will
-shade of red) will show red text followed by a stripe with that same
+show a column with a red background combined with a suitable
-color as a backdrop.
+foreground followed by another column with a red foreground against
+the current theme's background. The intent is to illustrate which
+values are suitable as a background or foreground.
 
 The name of the buffer describes the given Modus theme and what the
-contents are, such as =*modus-operandi-list-colors*= for named colors
+contents are, such as =*modus-operandi-list-all*= for the entirety of
-and ==*modus-operandi-list-mappings*= for the semantic color mappings.
+the palette (named colors as well as semantic color mappings) and
+==*modus-operandi-list-mappings*= for the mappings only.
 
 * Use colors from the Modus themes palette
 :PROPERTIES:
@@ -1361,7 +1356,7 @@ value in some other application.
 :END:
 
 #+findex: modus-themes-get-color-value
-The function ~modus-themes-get-color-value~ can be called from Lisp to
+The fuction ~modus-themes-get-color-value~ can be called from Lisp to
 return the value of a color from the active Modus theme palette. It
 takea a =COLOR= argument and an optional =OVERRIDES=. It also accepts
 a third =THEME= argument, to get the color from the given theme.
@@ -2367,7 +2362,7 @@ until version 4.3.0.
 ;; was the default in versions of the Modus themes before 4.4.0
 (setq modus-themes-common-palette-overrides
       '((bg-prose-block-contents unspecified)
-        (bg-prose-block-delimiter unspecified)
+        (bg-prose-block-delimiter unspeficied)
         (fg-prose-block-delimiter fg-dim)))
 #+end_src
 
@@ -2941,7 +2936,7 @@ Reload the theme for changes to take effect.
 :CUSTOM_ID: h:a5140c9c-18b2-45db-8021-38d0b5074116
 :END:
 
-By default, the background of the ~region~ face extends from the
+By the default, the background of the ~region~ face extends from the
 end of the line to the edge of the window.  To limit it to the end of
 the line, we need to override the face's =:extend= attribute.  Adding
 this to the Emacs configuration file will suffice:
@@ -3365,7 +3360,7 @@ specification of that variable looks like this:
 
 With the exception of ~org-verbatim~ and ~org-code~ faces, everything else
 uses the corresponding type of emphasis: a bold typographic weight, or
-italicized, underlined, and struck through text.
+italicised, underlined, and struck through text.
 
 The best way for users to add some extra attributes, such as a
 foreground color, is to define their own faces and assign them to the
@@ -3985,13 +3980,13 @@ styles to use. The following is but a basic attempt to get started.
   (modus-themes-with-colors
     (custom-set-faces
      ;; FIXME: What is a "region cursor" and should it differ from the position highlights below?
-     `(meow-region-cursor-1 ((,c :inherit (bold modus-themes-reset-soft) :background ,bg-char-0)))
+     `(meow-region-cursor-1 ((,c :inherit (bold modus-themes-search-current modus-themes-reset-soft))))
-     `(meow-region-cursor-2 ((,c :inherit (bold modus-themes-reset-soft) :background ,bg-char-1)))
+     `(meow-region-cursor-2 ((,c :inherit (bold modus-themes-search-current modus-themes-reset-soft))))
-     `(meow-region-cursor-3 ((,c :inherit (bold modus-themes-reset-soft) :background ,bg-char-2)))
+     `(meow-region-cursor-3 ((,c :inherit (bold modus-themes-search-current modus-themes-reset-soft))))
 
-     `(meow-position-highlight-number-1 ((,c :inherit (bold modus-themes-reset-soft) :background ,bg-char-0)))
+     `(meow-position-highlight-number-1 ((,c :inherit (bold modus-themes-search-current modus-themes-reset-soft))))
-     `(meow-position-highlight-number-2 ((,c :inherit (bold modus-themes-reset-soft) :background ,bg-char-1)))
+     `(meow-position-highlight-number-2 ((,c :inherit (bold modus-themes-search-current modus-themes-reset-soft))))
-     `(meow-position-highlight-number-3 ((,c :inherit (bold modus-themes-reset-soft) :background ,bg-char-2))))))
+     `(meow-position-highlight-number-3 ((,c :inherit (bold modus-themes-search-current modus-themes-reset-soft)))))))
 
 (add-hook 'enable-theme-functions #'my-modus-themes-custom-faces)
 #+end_src
@@ -4049,45 +4044,6 @@ the theme level. Users can try this instead:
 
 [[#h:d87673fe-2ce1-4c80-a4b8-be36ca9f2d24][Using a hook at the post-load-theme phase]].
 
-** DIY Add support for howm
-:PROPERTIES:
-:CUSTOM_ID: h:7ea8fa66-1cd8-47b0-92b4-9998a3068f85
-:END:
-
-The ~howm~ package is a note-taking solution for Emacs. Users can add
-support for its faces with something like the following.
-
-#+begin_src emacs-lisp
-(defun my-modus-themes-custom-faces (&rest _)
-  (modus-themes-with-colors
-    (custom-set-faces
-     `(action-lock-face ((,c :inherit button)))
-     `(howm-mode-keyword-face (( )))
-     `(howm-mode-ref-face ((,c :inherit link)))
-     `(howm-mode-title-face ((,c :inherit modus-themes-heading-0)))
-     `(howm-mode-wiki-face ((,c :inherit link)))
-     `(howm-reminder-deadline-face ((,c :foreground ,date-deadline)))
-     `(howm-reminder-late-deadline-face ((,c :inherit bold :foreground ,date-deadline)))
-     `(howm-reminder-defer-face ((,c :foreground ,date-scheduled)))
-     `(howm-reminder-scheduled-face ((,c :foreground ,date-scheduled)))
-     `(howm-reminder-done-face ((,c :foreground ,prose-done)))
-     `(howm-reminder-todo-face ((,c :foreground ,prose-todo)))
-     `(howm-reminder-normal-face ((,c :foreground ,date-common)))
-     `(howm-reminder-today-face ((,c :inherit bold :foreground ,date-common)))
-     `(howm-reminder-tomorrow-face ((,c :inherit bold :foreground ,date-scheduled)))
-     `(howm-simulate-todo-mode-line-face ((,c :inherit bold)))
-     `(howm-view-empty-face (( )))
-     `(howm-view-hilit-face ((,c :inherit match)))
-     `(howm-view-name-face ((,c :inherit bold)))
-     `(iigrep-counts-face1 ((,c :foreground ,rainbow-1)))
-     `(iigrep-counts-face2 ((,c :foreground ,rainbow-2)))
-     `(iigrep-counts-face3 ((,c :foreground ,rainbow-3)))
-     `(iigrep-counts-face4 ((,c :foreground ,rainbow-4)))
-     `(iigrep-counts-face5 ((,c :foreground ,rainbow-5))))))
-
-(add-hook 'enable-theme-functions #'my-modus-themes-custom-faces)
-#+end_src
-
 ** DIY Use a hook at the post-load-theme phase
 :PROPERTIES:
 :CUSTOM_ID: h:d87673fe-2ce1-4c80-a4b8-be36ca9f2d24
@@ -4207,6 +4163,7 @@ project.  The idea is to offer an overview of the known status of all
 affected face groups.  The items with an appended asterisk =*= tend to
 have lots of extensions, so the "full support" may not be 100% true…
 
++ abbrev
 + ace-window
 + agda2-mode
 + all-the-icons
@@ -4314,6 +4271,7 @@ have lots of extensions, so the "full support" may not be 100% true…
 + hl-fill-column
 + hl-line-mode
 + hl-todo
++ howm
 + hydra
 + ibuffer
 + icomplete
@@ -4420,6 +4378,7 @@ have lots of extensions, so the "full support" may not be 100% true…
 + sly
 + smart-mode-line
 + smerge
++ spacious-padding
 + speedbar
 + spell-fu
 + stripes
@@ -4435,8 +4394,10 @@ have lots of extensions, so the "full support" may not be 100% true…
 + terraform-mode
 + term
 + textsec
++ tldr
 + transient (pop-up windows such as Magit's)
 + trashed
++ treemacs
 + tree-sitter
 + tty-menu
 + tuareg
@@ -5407,7 +5368,7 @@ more effective than trying to do the same with either red or blue (the
 latter is the least effective in that regard).
 
 When we need to work with several colors, it is always better to have
-sufficient maneuvering space, especially since we cannot pick arbitrary
+sufficient manoeuvring space, especially since we cannot pick arbitrary
 colors but only those that satisfy the accessibility objectives of the
 themes.
 
@@ -5513,7 +5474,7 @@ it is already understood that one must follow the indicator or headline
 to view its contents and (ii) underlining everything would make the
 interface virtually unusable.
 
-Again, one must exercise judgment in order to avoid discrimination,
+Again, one must exercise judgement in order to avoid discrimination,
 where "discrimination" refers to:
 
 + The treatment of substantially different magnitudes as if they were of
@@ -5587,7 +5548,7 @@ the themes, which is partially fleshed out in this manual.
 
 With regard to the artistic aspect (where "art" qua skill may amount to
 an imprecise science), there is no hard-and-fast rule in effect as it
-requires one to exercise discretion and make decisions based on
+requires one to exercize discretion and make decisions based on
 context-dependent information or constraints.  As is true with most
 things in life, when in doubt, do not cling on to the letter of the law
 but try to understand its spirit.
@@ -5736,14 +5697,14 @@ The Modus themes are a collective effort.  Every bit of work matters.
   Contovounesios, Björn Lindström, Carlo Zancanaro, Christian Tietze,
   Daniel Mendler, David Edmondson, Eli Zaretskii, Fritz Grabo, Gautier
   Ponsinet, Illia Ostapyshyn, Jared Finder, Kévin Le Gouguec, Koen van
-  Greevenbroek, Kostadin Ninev, Madhavan Krishnan, Manuel Giraud,
+  Greevenbroek, Kostadin Ninev, Leilei332, Madhavan Krishnan, Manuel
-  Markus Beppler, Matthew Stevenson, Mauro Aranda, Nacho Barrientos,
+  Giraud, Markus Beppler, Matthew Stevenson, Mauro Aranda, Nacho
-  Niall Dooley, Nicolas De Jaeghere, Paul David, Pavel Novichkov,
+  Barrientos, Niall Dooley, Nicolas De Jaeghere, Paul David, Pavel
-  Philip Kaludercic, Pierre Téchoueyres, Rudolf Adamkovič, Sergey
+  Novichkov, Philip Kaludercic, Pierre Téchoueyres, Rahul M.
-  Nichiporchik, Shreyas Ragavan, Stefan Kangas, Stephen Berman,
+  {{{space()}}} Juliato, Rudolf Adamkovič, Sergey Nichiporchik,
-  Stephen Gildea, Steve Downey, Thanos Apollo, Tomasz Hołubowicz,
+  Shreyas Ragavan, Stefan Kangas, Stephen Berman, Stephen Gildea,
-  Utkarsh Singh, Vincent Murphy, Xinglu Chen, Yuanchen Xie, fluentpwn,
+  Steve Downey, Thanos Apollo, Tomasz Hołubowicz, Utkarsh Singh,
-  okamsn.
+  Vincent Murphy, Xinglu Chen, Yuanchen Xie, fluentpwn, okamsn.
 
 + Ideas and user feedback :: Aaron Jensen, Adam Porter, Adam Spiers,
   Adrian Manea, Aleksei Pirogov, Alex Griffin, Alex Koen, Alex
@@ -5779,7 +5740,8 @@ The Modus themes are a collective effort.  Every bit of work matters.
   Eugene, Fourchaux, Fredrik, Moesasji, Nick, Summer Emacs, TheBlob42,
   TitusMu, Trey, ZharMeny, bepolymathe, bit9tream, bangedorrunt,
   derek-upham, doolio, fleimgruber, gitrj95, iSeeU, jixiuf, ltmsyvag,
-  okamsn, pRot0ta1p, shipmints, soaringbird, tumashu, wakamenod.
+  okamsn, pedro-nonfree, pRot0ta1p, shipmints, soaringbird, tumashu,
+  wakamenod.
 
 + Packaging :: Basil L.{{{space()}}} Contovounesios, Eli Zaretskii,
   Glenn Morris, Mauro Aranda, Richard Stallman, Stefan Kangas (core
@@ -5812,7 +5774,7 @@ All errors are my own.
                  Version 1.3, 3 November 2008
 
 
- Copyright (C) 2000-2002, 2007-2008, 2025 Free Software Foundation, Inc.
+ Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
      <https://fsf.org/>
  Everyone is permitted to copy and distribute verbatim copies
  of this license document, but changing it is not allowed.

doc/misc/texinfo.tex

@@ -3,7 +3,7 @@
 % Load plain if necessary, i.e., if running under initex.
 \expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi
 %
-\def\texinfoversion{2025-01-31.21}
+\def\texinfoversion{2025-03-22.08}
 %
 % Copyright 1985, 1986, 1988, 1990-2025 Free Software Foundation, Inc.
 %
@@ -287,7 +287,6 @@
 % Avoid "undefined control sequence" errors.
 \def\currentchapterdefs{}
 \def\currentsectiondefs{}
-\def\currentsection{}
 \def\prevchapterdefs{}
 \def\prevsectiondefs{}
 \def\currentcolordefs{}
@@ -980,18 +979,51 @@ where each line of input produces a line of output.}
 \newif\ifpdf
 \newif\ifpdfmakepagedest
 
+% when pdftex is run in dvi mode, \pdfoutput is defined (so \pdfoutput=1
+% can be set).  So we test for \relax and 0 as well as being undefined.
+\ifx\pdfoutput\thisisundefined
+\else
+  \ifx\pdfoutput\relax
+  \else
+    \ifcase\pdfoutput
+    \else
+      \pdftrue
+    \fi
+  \fi
+\fi
+
+\newif\ifxetex
+\ifx\XeTeXrevision\thisisundefined\else
+  \xetextrue
+\fi
+
 \newif\ifluatex
 \ifx\luatexversion\thisisundefined\else
   \luatextrue
+  \ifnum\luatexversion>84
+    \pdftrue
+  \fi
 \fi
 
+\newif\ifpdforxetex
+\ifpdf
+  \pdforxetextrue
+\fi
+\ifxetex
+  \pdforxetextrue
+\fi
+
+
+
+% Whether to use non-ASCII bytes in internal link targets.  Presently this
+% is almost always on.
+\newif\iftxiuseunicodedestname
+\txiuseunicodedestnametrue
+
 %
 % For LuaTeX
 %
 
-\newif\iftxiuseunicodedestname
-\txiuseunicodedestnamefalse % For pdfTeX etc.
-
 \ifluatex
   % Use Unicode destination names
   \txiuseunicodedestnametrue
@@ -1045,7 +1077,7 @@ where each line of input produces a line of output.}
     %
   \endgroup
   \def\pdfescapestring#1{\directlua{PDFescstr('\luaescapestring{#1}')}}
-  \ifnum\luatexversion>84
+  \ifpdf
     % For LuaTeX >= 0.85
     \def\pdfdest{\pdfextension dest}
     \let\pdfoutput\outputmode
@@ -1068,33 +1100,6 @@ where each line of input produces a line of output.}
   \fi
 \fi
 
-% when pdftex is run in dvi mode, \pdfoutput is defined (so \pdfoutput=1
-% can be set).  So we test for \relax and 0 as well as being undefined.
-\ifx\pdfoutput\thisisundefined
-\else
-  \ifx\pdfoutput\relax
-  \else
-    \ifcase\pdfoutput
-    \else
-      \pdftrue
-    \fi
-  \fi
-\fi
-
-\newif\ifxetex
-\ifx\XeTeXrevision\thisisundefined\else
-  \xetextrue
-\fi
-
-\newif\ifpdforxetex
-\pdforxetexfalse
-\ifpdf
-  \pdforxetextrue
-\fi
-\ifxetex
-  \pdforxetextrue
-\fi
-
 
 % Output page labels information.
 % See PDF reference v.1.7 p.594, section 8.3.1.
@@ -1388,9 +1393,6 @@ output) for that.)}
     \safewhatsit{\pdfdest name{\pdfdestname} xyz}%
   }
   %
-  % used to mark target names; must be expandable.
-  \def\pdfmkpgn#1{#1}
-  %
   % Adding outlines to PDF; macros for calculating structure of outlines
   % come from Petr Olsak
   \def\expnumber#1{\expandafter\ifx\csname#1\endcsname\relax 0%
@@ -1416,7 +1418,7 @@ output) for that.)}
       \def\pdfdestname{#4}%
     \fi
     %
-    \pdfoutline goto name{\pdfmkpgn{\pdfdestname}}#2{\pdfoutlinetext}%
+    \pdfoutline goto name{\pdfdestname}#2{\pdfoutlinetext}%
   }
   %
   \def\pdfmakeoutlines{%
@@ -1427,15 +1429,18 @@ output) for that.)}
 	\def\thischapnum{##2}%
 	\def\thissecnum{0}%
 	\def\thissubsecnum{0}%
+	\def\indexlastsec{chap\thischapnum}%
       }%
       \def\numsecentry##1##2##3##4{%
 	\advancenumber{chap\thischapnum}%
 	\def\thissecnum{##2}%
 	\def\thissubsecnum{0}%
+	\def\indexlastsec{sec\thissecnum}%
       }%
       \def\numsubsecentry##1##2##3##4{%
 	\advancenumber{sec\thissecnum}%
 	\def\thissubsecnum{##2}%
+	\def\indexlastsec{subsec\thissecnum}%
       }%
       \def\numsubsubsecentry##1##2##3##4{%
 	\advancenumber{subsec\thissubsecnum}%
@@ -1443,7 +1448,13 @@ output) for that.)}
       \def\thischapnum{0}%
       \def\thissecnum{0}%
       \def\thissubsecnum{0}%
+      \let\indexlastsec\empty
       %
+      % Index initials are subsidiary to whatever sectioning command just
+      % occurred, usually @appendix or @chapter but occasionally a lower level.
+      \def\idxinitialentry##1##2##3##4{%
+        \expandafter\advancenumber\expandafter{\indexlastsec}%
+      }%
       % use \def rather than \let here because we redefine \chapentry et
       % al. a second time, below.
       \def\appentry{\numchapentry}%
@@ -1455,9 +1466,6 @@ output) for that.)}
       \def\unnsubsecentry{\numsubsecentry}%
       \def\unnsubsubsecentry{\numsubsubsecentry}%
       %
-      % Treat index initials like @section.  Note that this is the wrong
-      % level if the index is not at the level of @appendix or @chapter.
-      \def\idxinitialentry{\numsecentry}%
       \readdatafile{toc}%
       %
       % Read toc second time, this time actually producing the outlines.
@@ -1482,18 +1490,6 @@ output) for that.)}
       \def\idxinitialentry##1##2##3##4{%
         \dopdfoutline{##1}{}{idx.##1.##2}{##4}}%
       %
-      % PDF outlines are displayed using system fonts, instead of
-      % document fonts.  Therefore we cannot use special characters,
-      % since the encoding is unknown.  For example, the eogonek from
-      % Latin 2 (0xea) gets translated to a | character.  Info from
-      % Staszek Wawrykiewicz, 19 Jan 2004 04:09:24 +0100.
-      %
-      % TODO this right, we have to translate 8-bit characters to
-      % their "best" equivalent, based on the @documentencoding.  Too
-      % much work for too little return.  Just use the ASCII equivalents
-      % we use for the index sort strings.
-      %
-      \indexnofonts
       \ifnodeseen\else \dopdfoutlinecontents \fi % for @contents at beginning
       \setupdatafile
       % We can have normal brace characters in the PDF outlines, unlike
@@ -1501,9 +1497,9 @@ output) for that.)}
       \def\{{\lbracecharliteral}%
       \def\}{\rbracecharliteral}%
       \catcode`\\=\active \otherbackslash
-      \input \tocreadfilename
+      \input \tocreadfilename\relax
+      \ifnodeseen \dopdfoutlinecontents \fi % for @contents at end
     \endgroup
-    \ifnodeseen \dopdfoutlinecontents \fi % for @contents at end
   }
   \def\dopdfoutlinecontents{%
     \expandafter\dopdfoutline\expandafter{\putwordTOC}{}{txi.CONTENTS}{}%
@@ -1541,7 +1537,7 @@ output) for that.)}
   %
   \def\pdflink#1{\pdflinkpage{#1}{#1}}%
   \def\pdflinkpage#1#2{%
-    \startlink attr{/Border [0 0 0]} goto name{\pdfmkpgn{#1}}
+    \startlink attr{/Border [0 0 0]} goto name{#1}
     \setcolor{\linkcolor}#2\endlink}
 \else
   % non-pdf mode
@@ -1644,18 +1640,20 @@ output) for that.)}
       % horizontal space being required in the PDF viewer.
       \def\partentry##1##2##3##4{}% ignore parts in the outlines
       \def\numchapentry##1##2##3##4{%
-        \dopdfoutline{##2 ##1}{1}{##3}{##4}}%
+        \dopdfoutline{##2 ##1}{1}{##3}{##4}%
+        \def\indexseclevel{2}}%
       \def\numsecentry##1##2##3##4{%
-        \dopdfoutline{##1}{2}{##3}{##4}}%
+        \dopdfoutline{##1}{2}{##3}{##4}%
+        \def\indexseclevel{3}}%
       \def\numsubsecentry##1##2##3##4{%
-        \dopdfoutline{##1}{3}{##3}{##4}}%
+        \dopdfoutline{##1}{3}{##3}{##4}%
+        \def\indexseclevel{4}}%
       \def\numsubsubsecentry##1##2##3##4{%
-        \dopdfoutline{##1}{4}{##3}{##4}}%
+        \dopdfoutline{##1}{4}{##3}{##4}%
+        \def\indexseclevel{5}}%
       %
-      % Note this is at the wrong level unless the index is in an @appendix
-      % or @chapter.
       \def\idxinitialentry##1##2##3##4{%
-         \dopdfoutline{##1}{2}{idx.##1.##2}{##4}}%
+         \dopdfoutline{##1}{\indexseclevel}{idx.##1.##2}{##4}}%
       %
       \let\appentry\numchapentry%
       \let\appsecentry\numsecentry%
@@ -1680,7 +1678,9 @@ output) for that.)}
       \def\{{\lbracecharliteral}%
       \def\}{\rbracecharliteral}%
       \catcode`\\=\active \otherbackslash
+      \xetexpreauxfile
       \input \tocreadfilename\relax
+      \xetexpostauxfile
       \ifnodeseen \dopdfoutlinecontents \fi % for @contents at end
     \endgroup
   }
@@ -5177,8 +5177,8 @@ $$%
   %
   \uccode`\1=`\{ \uppercase{\def\{{1}}%
   \uccode`\1=`\} \uppercase{\def\}{1}}%
-  \let\lbracechar\{%
+  \def\lbracechar##1{\{}%
-  \let\rbracechar\}%
+  \def\rbracechar##1{\}}%
   %
   %
   % We need to get rid of all macros, leaving only the arguments (if present).
@@ -5523,6 +5523,8 @@ $$%
   \tolerance = 9500
   \plainfrenchspacing
   \everypar = {}% don't want the \kern\-parindent from indentation suppression.
+  \let\entry\indexentry
+  \ifxetex\xetexpreauxfile\fi
   %
   % See comment in \requireopenindexfile.
   \def\indexname{#1}\ifx\indexname\indexisfl\def\indexname{f1}\fi
@@ -5548,6 +5550,7 @@ $$%
     \fi
   \fi
   \closein 1
+  \ifxetex\xetexpostauxfile\fi
 \endgroup}
 
 % Checked in @bye
@@ -5583,7 +5586,9 @@ might help (with 'rm \jobname.?? \jobname.??s')%
       }%
     \else
       \begindoublecolumns
+      \ifxetex\xetexpreauxfile\fi
       \input \jobname.\indexname s
+      \ifxetex\xetexpostauxfile\fi
       \enddoublecolumns
     \fi
   }{%
@@ -5594,11 +5599,39 @@ might help (with 'rm \jobname.?? \jobname.??s')%
     % should work because we (hopefully) don't otherwise use @ in index files.
     %\catcode`\@=12\relax
     \catcode`\@=0\relax
+    \ifxetex\xetexpreauxfile\fi
     \input \jobname.\indexname s
+    \ifxetex\xetexpostauxfile\fi
     \enddoublecolumns
   }%
 }
 
+\def\indexentry#1#2{%
+  \let\entrypagetarget\empty
+  \ifpdforxetex
+    % only link the index text to the page if no comma appears in the
+    % list of pages, i.e. there is only one page
+    \checkpagelistcomma{#2}\pagelistcomma
+    \expandafter\ifcase\pagelistcomma
+      \def\entrypagetarget{#2}%
+    \fi
+  \fi%
+  \entryinternal{#1}{#2}%
+}
+
+\def\checkpagelistcomma#1#2{%
+  \checkpagelistcommaxx#2#1,\finish
+}
+\def\checkpagelistcommaxx#1#2,#3\finish{%
+  \def\tmp{#3}%
+  \ifx\tmp\empty
+    \def#1{0\relax}
+  \else
+    \def#1{1\relax}
+  \fi
+}
+
+
 % These macros are used by the sorted index file itself.
 % Change them to control the appearance of the index.
 
@@ -5673,18 +5706,14 @@ might help (with 'rm \jobname.?? \jobname.??s')%
 \def\doindexinitialentry#1{%
   \ifpdforxetex
     \global\advance\idxinitialno by 1
-    \def\indexlbrace{\{}
+    \def\indexlbrace{\{}%
-    \def\indexrbrace{\}}
+    \def\indexrbrace{\}}%
-    \def\indexbackslash{\realbackslash}
+    \def\indexbackslash{\realbackslash}%
-    \def\indexatchar{\@}
+    \def\indexatchar{\@}%
     \writetocentry{idxinitial}{\asis #1}{IDX\the\idxinitialno}%
     % The @asis removes a pair of braces around e.g. {@indexatchar} that
     % are output by texindex.
     %
-    \vbox to 0pt{}%
-    % This vbox fixes the \pdfdest location for double column formatting.
-    % Without it, the \pdfdest is output above topskip glue at the top
-    % of a column as this glue is not added until the first box.
     \pdfmkdest{idx.\asis #1.IDX\the\idxinitialno}%
   \fi
 }
@@ -5704,16 +5733,18 @@ might help (with 'rm \jobname.?? \jobname.??s')%
 \newdimen\entrycontskip
 \entrycontskip=1em
 
-% for PDF output, whether to make the text of the entry a link to the page
+% for PDF output, whether to make the text of the entry a link to the section.
-% number.  set for @contents and @shortcontents where there is only one
+% set for @contents and @shortcontents.
-% page number.
 \newif\iflinkentrytext
 
-% \entry typesets a paragraph consisting of the text (#1), dot leaders, and
+% \entryinternal typesets a paragraph consisting of the text (#1), dot
-% then page number (#2) flushed to the right margin.  It is used for index
+% leaders, and then page number (#2) flushed to the right margin.  It is
-% and table of contents entries.  The paragraph is indented by \leftskip.
+% used for index and table of contents entries.  The paragraph is indented
-% If \tocnodetarget is set, link text to the referenced node.
+% by \leftskip.
-\def\entry{%
+% For PDF output, if \linkentrytexttrue and \tocnodetarget is set, link text
+% to the referenced node.  Else if \entrypagetarget is set, link text to the
+% page.
+\def\entryinternal{%
   \begingroup
     %
     % Start a new paragraph if necessary, so our assignments below can't
@@ -5761,7 +5792,11 @@ might help (with 'rm \jobname.?? \jobname.??s')%
             \endlink
           \fi
         \else
-          \unhbox\boxA
+          \ifx\entrypagetarget\empty
+            \unhbox\boxA
+          \else
+            \pdflinkpage{\entrypagetarget}{\unhbox\boxA}%
+          \fi
         \fi
       \else
         \unhbox\boxA
@@ -6433,6 +6468,10 @@ might help (with 'rm \jobname.?? \jobname.??s')%
 \parseargdef\subsubheading{\sectionheading{#1}{subsubsec}{Yomitfromtoc}{}
   \suppressfirstparagraphindent}
 
+% @xrefname - give text with printed name for linking to node and allow
+% referencing node, but do not print any heading.
+\parseargdef\xrefname{\donoderef{Yomitfromtoc}{#1}}%
+
 % These macros generate a chapter, section, etc. heading only
 % (including whitespace, linebreaking, etc. around it),
 % given all the information in convenient, parsed form.
@@ -6554,11 +6593,6 @@ might help (with 'rm \jobname.?? \jobname.??s')%
     \chapfonts \rm
     \let\footnote=\errfootnoteheading % give better error message
     %
-    % Have to define \currentsection before calling \donoderef, because the
-    % xref code eventually uses it.  On the other hand, it has to be called
-    % after \pchapsepmacro, or the headline will change too soon.
-    \gdef\currentsection{#1}%
-    %
     % Only insert the separating space if we have a chapter/appendix
     % number, and don't print the unnumbered ``number''.
     \ifx\temptype\Ynothingkeyword
@@ -6585,7 +6619,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
     % been typeset.  If the destination for the pdf outline is after the
     % text, then jumping from the outline may wind up with the text not
     % being visible, for instance under high magnification.
-    \donoderef{#2}%
+    \donoderef{#2}{#1}%
     %
     % Typeset the actual heading.
     \nobreak % Avoid page breaks at the interline glue.
@@ -6701,21 +6735,17 @@ might help (with 'rm \jobname.?? \jobname.??s')%
     \ifx\temptype\Ynothingkeyword
       \setbox0 = \hbox{}%
       \def\toctype{unn}%
-      \gdef\currentsection{#1}%
     \else\ifx\temptype\Yomitfromtockeyword
-      % for @headings -- no section number, don't include in toc,
+      % for @headings -- no section number, don't include in toc.
-      % and don't redefine \currentsection.
       \setbox0 = \hbox{}%
       \def\toctype{omit}%
       \let\sectionlevel=\empty
     \else\ifx\temptype\Yappendixkeyword
       \setbox0 = \hbox{#4\enspace}%
       \def\toctype{app}%
-      \gdef\currentsection{#1}%
     \else
       \setbox0 = \hbox{#4\enspace}%
       \def\toctype{num}%
-      \gdef\currentsection{#1}%
     \fi\fi\fi
     %
     % Write the toc entry (before \donoderef).  See comments in \chapmacro.
@@ -6723,7 +6753,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
     %
     % Write the node reference (= pdf destination for pdftex).
     % Again, see comments in \chapmacro.
-    \donoderef{#3}%
+    \donoderef{#3}{#1}%
     %
     % Interline glue will be inserted when the vbox is completed.
     % That glue will be a valid breakpoint for the page, since it'll be
@@ -6955,6 +6985,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
 %
 \def\contents{%
   \startcontents{\putwordTOC}{\contentsmkdest}%
+    \ifxetex\xetexpreauxfile\fi
     \openin 1 \tocreadfilename\space
     \ifeof 1 \else
       \findsecnowidths
@@ -6966,6 +6997,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
       \pdfmakeoutlines
     \fi
     \closein 1
+    \ifxetex\xetexpostauxfile\fi
   \endgroup
   \contentsendroman
 }
@@ -6999,11 +7031,13 @@ might help (with 'rm \jobname.?? \jobname.??s')%
     \let\numsubsubsecentry = \numsecentry
     \let\appsubsubsecentry = \numsecentry
     \let\unnsubsubsecentry = \numsecentry
+    \ifxetex\xetexpreauxfile\fi
     \openin 1 \tocreadfilename\space
     \ifeof 1 \else
       \readtocfile
     \fi
     \closein 1
+    \ifxetex\xetexpostauxfile\fi
     \vfill \eject
     \contentsalignmacro % in case @setchapternewpage odd is in effect
   \endgroup
@@ -7167,6 +7201,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
 \extrasecnoskip=0pt
 
 \let\tocnodetarget\empty
+\let\entrypagetarget\empty
 
 % \tocentry{TITLE}{SEC NO}{NODE}{PAGE}
 %
@@ -7174,7 +7209,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
   \def\tocnodetarget{#3}%
   \def\secno{#2}%
   \ifx\empty\secno
-    \entry{#1}{#4}%
+    \entryinternal{#1}{#4}%
   \else
     \ifdim 0pt=\secnowidth
       \setbox0=\hbox{#2\hskip\labelspace\hskip\extrasecnoskip}%
@@ -7185,7 +7220,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
         #2\hskip\labelspace\hskip\extrasecnoskip\hfill}%
     \fi
     \entrycontskip=\wd0
-    \entry{\box0 #1}{#4}%
+    \entryinternal{\box0 #1}{#4}%
   \fi
 }
 \newdimen\labelspace
@@ -8170,18 +8205,11 @@ might help (with 'rm \jobname.?? \jobname.??s')%
   }
 \fi
 
-\let\E=\expandafter
-
 % Used at the time of macro expansion.
 % Argument is macro body with arguments substituted
 \def\scanmacro#1{%
   \newlinechar`\^^M
-  % expand the expansion of \eatleadingcr twice to maybe remove a leading
+  \def\xeatspaces##1{\eatleadingcrthen\eatspaces{##1}}%
-  % newline (and \else and \fi tokens), then call \eatspaces on the result.
-  \def\xeatspaces##1{%
-    \E\E\E\E\E\E\E\eatspaces\E\E\E\E\E\E\E{\eatleadingcr##1%
-  }}%
-  \def\xempty##1{}%
   %
   % Process the macro body under the current catcode regime.
   \scantokens{#1@comment}%
@@ -8234,10 +8262,12 @@ might help (with 'rm \jobname.?? \jobname.??s')%
 \unbrace{\gdef\trim@@@ #1 } #2@{#1}
 }
 
-{\catcode`\^^M=\other%
+% Trim a single leading ^^M off a string, then call #1
-\gdef\eatleadingcr#1{\if\noexpand#1\noexpand^^M\else\E#1\fi}}%
+{\catcode`\^^M=\active \catcode`\Q=3%
-% Warning: this won't work for a delimited argument
+\gdef\eatleadingcrthen #1#2{\eatlcra #1Q#2Q^^MQ}%
-% or for an empty argument
+\gdef\eatlcra #1#2Q^^M{\eatlcrb #1#2Q}%
+\gdef\eatlcrb #1Q#2Q#3Q{#1{#2}}%
+}
 
 % Trim a single trailing ^^M off a string.
 {\catcode`\^^M=\other \catcode`\Q=3%
@@ -8373,6 +8403,10 @@ might help (with 'rm \jobname.?? \jobname.??s')%
 % <parameter list> is #, then the preceding argument is delimited by
 % an opening brace, and that opening brace is not consumed.
 
+% Make @ a letter, so that we can make private-to-Texinfo macro names.
+\edef\texiatcatcode{\the\catcode`\@}
+\catcode `@=11\relax
+
 % Parse the optional {params} list to @macro or @rmacro.
 % Set \paramno to the number of arguments,
 % and \paramlist to a parameter text for the macro (e.g. #1,#2,#3 for a
@@ -8385,14 +8419,13 @@ might help (with 'rm \jobname.?? \jobname.??s')%
 % That gets used by \mbodybackslash (above).
 %
 % If there are 10 or more arguments, a different technique is used: see
-% \parsemmanyargdef.
+% \parsemmanyargdef@@.
 %
 \def\parsemargdef#1;{%
   \paramno=0\def\paramlist{}%
   \let\hash\relax
   % \hash is redefined to `#' later to get it into definitions
   \let\xeatspaces\relax
-  \let\xempty\relax
   \parsemargdefxxx#1,;,%
   \ifnum\paramno<10\relax\else
     \paramno0\relax
@@ -8404,11 +8437,9 @@ might help (with 'rm \jobname.?? \jobname.??s')%
   \else \let\next=\parsemargdefxxx
     \advance\paramno by 1
     \expandafter\edef\csname macarg.\eatspaces{#1}\endcsname
-        {\xeatspaces{\hash\the\paramno\noexpand\xempty{}}}%
+        {\xeatspaces{\hash\the\paramno}}%
     \edef\paramlist{\paramlist\hash\the\paramno,}%
   \fi\next}
-% the \xempty{} is to give \eatleadingcr an argument in the case of an
-% empty macro argument.
 
 % \parsemacbody, \parsermacbody
 %
@@ -8419,14 +8450,12 @@ might help (with 'rm \jobname.?? \jobname.??s')%
 % body to be transformed.
 % Set \macrobody to the body of the macro, and call \macrodef.
 %
+\catcode `\@\texiatcatcode
 {\catcode`\ =\other\long\gdef\parsemacbody#1@end macro{%
 \xdef\macrobody{\eatcr{#1}}\endgroup\macrodef}}%
 {\catcode`\ =\other\long\gdef\parsermacbody#1@end rmacro{%
 \xdef\macrobody{\eatcr{#1}}\endgroup\macrodef}}%
-
+\catcode `\@=11\relax
-% Make @ a letter, so that we can make private-to-Texinfo macro names.
-\edef\texiatcatcode{\the\catcode`\@}
-\catcode `@=11\relax
 
 %%%%%%%%%%%%%% Code for > 10 arguments only   %%%%%%%%%%%%%%%%%%
 
@@ -8687,15 +8716,13 @@ might help (with 'rm \jobname.?? \jobname.??s')%
         \noexpand\expandafter
         \expandafter\noexpand\csname\the\macname @@\endcsname}%
       \expandafter\xdef\csname\the\macname @@\endcsname##1{%
-          \noexpand\passargtomacro
+        \noexpand\passargtomacro
-          \expandafter\noexpand\csname\the\macname @@@\endcsname{##1,}}%
+        \expandafter\noexpand\csname\the\macname @@@\endcsname{##1,}}%
       \expandafter\xdef\csname\the\macname @@@\endcsname##1{%
-          \expandafter\noexpand\csname\the\macname @@@@\endcsname ##1}%
+        \expandafter\noexpand\csname\the\macname @@@@\endcsname ##1}%
-      \expandafter\expandafter
+      \expandaftergroup{\expandafter\xdef\csname\the\macname @@@@\endcsname}%
-      \expandafter\xdef
+                       \paramlist{%
-      \expandafter\expandafter
+        \endgroup\noexpand\scanmacro{\macrobody}}%
-        \csname\the\macname @@@@\endcsname\paramlist{%
-          \endgroup\noexpand\scanmacro{\macrobody}}%
     \else % 10 or more:
       \expandafter\xdef\csname\the\macname\endcsname{%
         \noexpand\getargvals@{\the\macname}{\argl}%
@@ -8707,6 +8734,16 @@ might help (with 'rm \jobname.?? \jobname.??s')%
 
 \catcode `\@\texiatcatcode\relax % end private-to-Texinfo catcodes
 
+% utility definition to avoid excessive use of \expandafter.  call
+% as \expandaftergroup{CONTENT}\WORD to expand \WORD exactly once and remove
+% braces around CONTENT.
+\def\expandaftergroup#1#2{%
+  \expandafter\expandaftergroupx\expandafter{#2}{#1}%
+}
+\def\expandaftergroupx#1#2{%
+  #2#1%
+}
+
 \def\norecurse#1{\bgroup\cslet{#1}{macsave.#1}}
 
 
@@ -8876,9 +8913,8 @@ might help (with 'rm \jobname.?? \jobname.??s')%
     \expandafter\noexpand
     \csname\the\macname @@@\endcsname##1\noexpand\endlinemacro
   }
-  \expandafter\expandafter
+  \expandaftergroup{\expandafter\xdef\csname\the\macname @@@\endcsname}%
-  \expandafter\xdef
+                     \paramlist{%
-  \expandafter\expandafter\csname\the\macname @@@\endcsname\paramlist{%
     \newlinechar=13 % split \macrobody into lines
     \noexpand\scantokens{\macrobody}%
   }
@@ -8953,11 +8989,11 @@ might help (with 'rm \jobname.?? \jobname.??s')%
 \let\lastnode=\empty
 
 % Write a cross-reference definition for the current node.  #1 is the
-% type (Ynumbered, Yappendix, Ynothing).
+% type (Ynumbered, Yappendix, Ynothing).  #2 is the section title.
 %
-\def\donoderef#1{%
+\def\donoderef#1#2{%
   \ifx\lastnode\empty\else
-    \setref{\lastnode}{#1}%
+    \setref{\lastnode}{#1}{#2}%
     \global\let\lastnode=\empty
     \setnodeseenonce
   \fi
@@ -8978,21 +9014,28 @@ might help (with 'rm \jobname.?? \jobname.??s')%
 %
 \def\savesf{\relax \ifhmode \savesfregister=\spacefactor \fi}
 \def\restoresf{\relax \ifhmode \spacefactor=\savesfregister \fi}
-\def\anchor#1{\savesf \setref{#1}{Ynothing}\restoresf \ignorespaces}
+\def\anchor#1{%
+  \savesf \setref{#1}{Yanchor}{#1}\restoresf \ignorespaces
+}
 
-% \setref{NAME}{SNT} defines a cross-reference point NAME (a node or an
+% @namedanchor{NAME, XREFNAME} -- define xref target at arbitrary point
-% anchor), which consists of three parts:
+% with label text for cross-references to it.
-% 1) NAME-title - the current sectioning name taken from \currentsection,
+\def\namedanchor#1{\donamedanchor#1\finish}%
-%                 or the anchor name.
+\def\donamedanchor#1,#2\finish{%
-% 2) NAME-snt   - section number and type, passed as the SNT arg, or
+  \savesf \setref{#1}{Yanchor}{\ignorespaces #2\unskip}\restoresf \ignorespaces
-%                 empty for anchors.
+}
+
+% \setref{NAME}{SNT}{TITLE} defines a cross-reference point NAME (a node
+% or an anchor), which consists of three parts:
+% 1) NAME-title - the current sectioning name
+% 2) NAME-snt   - section number and type, passed as the SNT arg.
 % 3) NAME-pg    - the page number.
 %
 % This is called from \donoderef, \anchor, and \dofloat.  In the case of
 % floats, there is an additional part, which is not written here:
 % 4) NAME-lof   - the text as it should appear in a @listoffloats.
 %
-\def\setref#1#2{%
+\def\setref#1#2#3{%
   \pdfmkdest{#1}%
   \iflinks
     {%
@@ -9004,7 +9047,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
 	\write\auxfile{@xrdef{#1-% #1 of \setref, expanded by the \edef
 	  ##1}{##2}}% these are parameters of \writexrdef
       }%
-      \toks0 = \expandafter{\currentsection}%
+      \toks0 = {#3}%
       \immediate \writexrdef{title}{\the\toks0 }%
       \immediate \writexrdef{snt}{\csname #2\endcsname}% \Ynumbered etc.
       \safewhatsit{\writexrdef{pg}{\folio}}% will be written later, at \shipout
@@ -9058,15 +9101,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
   \setbox\infofilenamebox = \hbox{\infofilename\unskip}%
   %
   \startxreflink{#1}{#4}%
-  {%
+  \getrefx{#1-title}\Xthisreftitle
-    % Have to otherify everything special to allow the \csname to
-    % include an _ in the xref name, etc.
-    \indexnofonts
-    \turnoffactive
-    \def\value##1{##1}%
-    \expandafter\global\expandafter\let\expandafter\Xthisreftitle
-      \csname XR#1-title\endcsname
-  }%
   %
   % Float references are printed completely differently: "Figure 1.2"
   % instead of "[somenode], p.3".  \iffloat distinguishes them by
@@ -9099,21 +9134,23 @@ might help (with 'rm \jobname.?? \jobname.??s')%
       % Cross-manual reference with a printed manual name.
       %
       \crossmanualxref{\cite{\printedmanual\unskip}}%
-    %
     \else\ifdim \wd\infofilenamebox > 0pt
       % Cross-manual reference with only an info filename (arg 4), no
       % printed manual name (arg 5).  This is essentially the same as
       % the case above; we output the filename, since we have nothing else.
       %
       \crossmanualxref{\code{\infofilename\unskip}}%
-    %
     \else
       % Reference within this manual.
       %
-      % Only output a following space if the -snt ref is nonempty, as the ref
+      % Only output a following space if the -snt ref is nonempty, as is
-      % will be empty for @unnumbered and @anchor.
+      % the case for @unnumbered and @anchor.
-      \setbox2 = \hbox{\ignorespaces \refx{#1-snt}}%
+      \getrefx{#1-snt}\tmp
-      \ifdim \wd2 > 0pt \refx{#1-snt}\space\fi
+      \ifx\tmp\empty\else
+        \ifx\tmp\Yanchor\else
+          \tmp\space
+        \fi
+      \fi
       %
       % output the `[mynode]' via the macro below so it can be overridden.
       \xrefprintnodename\printedrefname
@@ -9169,7 +9206,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
         \else
           % Otherwise just copy the Info node name.
           \def\printedrefname{\ignorespaces #1}%
-        \fi%
+        \fi
       \fi
     \fi
   \fi
@@ -9201,7 +9238,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
        \ifnum\filenamelength>0
          goto file{\the\filename.pdf} name{\pdfdestname}%
        \else
-         goto name{\pdfmkpgn{\pdfdestname}}%
+         goto name{\pdfdestname}%
        \fi
      \else % XeTeX
        \ifnum\filenamelength>0
@@ -9281,6 +9318,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
 %
 \def\Ynothing{}
 \def\Yomitfromtoc{}
+\def\Yanchor{\isanchor} \let\isanchor\relax
 \def\Ynumbered{%
   \ifnum\secno=0
     \putwordChapter@tie \the\chapno
@@ -9307,14 +9345,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
 
 % \refx{NAME} - reference a cross-reference string named NAME.
 \def\refx#1{%
-  \requireauxfile
+  \getrefx{#1}\thisrefX
-  {%
-    \indexnofonts
-    \turnoffactive
-    \def\value##1{##1}%
-    \expandafter\global\expandafter\let\expandafter\thisrefX
-      \csname XR#1\endcsname
-  }%
   \ifx\thisrefX\relax
     % If not defined, say something at least.
     \angleleft un\-de\-fined\angleright
@@ -9335,6 +9366,17 @@ might help (with 'rm \jobname.?? \jobname.??s')%
   \fi
 }
 
+% Set #2 to xref string #1
+\def\getrefx#1#2{%
+  \requireauxfile
+  {%
+    \indexnofonts
+    \turnoffactive
+    \def\value##1{##1}%
+    \expandafter\global\expandafter\let\expandafter#2\csname XR#1\endcsname
+  }%
+}
+
 % This is the macro invoked by entries in the aux file.  Define a control
 % sequence for a cross-reference target (we prepend XR to the control sequence
 % name to avoid collisions).  The value is the page number.  If this is a float
@@ -9399,12 +9441,14 @@ might help (with 'rm \jobname.?? \jobname.??s')%
 % Read the last existing aux file, if any.  No error if none exists.
 %
 \def\tryauxfile{%
+  \ifxetex\xetexpreauxfile\fi
   \openin 1 \jobname.aux
   \ifeof 1 \else
     \readdatafile{aux}%
     \global\havexrefstrue
   \fi
   \closein 1
+  \ifxetex\xetexpostauxfile\fi
 }
 
 \def\setupdatafile{%
@@ -9790,14 +9834,15 @@ might help (with 'rm \jobname.?? \jobname.??s')%
       \global\advance\floatno by 1
       %
       {%
-        % This magic value for \currentsection is output by \setref as the
+        % This magic value for the third argument of \setref is output as
-        % XREFLABEL-title value.  \xrefX uses it to distinguish float
+        % the XREFLABEL-title value.  \xrefX uses it to distinguish float
         % labels (which have a completely different output format) from
         % node and anchor labels.  And \xrdef uses it to construct the
         % lists of floats.
         %
-        \edef\currentsection{\floatmagic=\safefloattype}%
+        \edef\tmp{\noexpand\setref{\floatlabel}{Yfloat}%
-        \setref{\floatlabel}{Yfloat}%
+                  {\floatmagic=\safefloattype}}%
+        \tmp
       }%
     \fi
     %
@@ -9919,7 +9964,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
 
 % #1 is the control sequence we are passed; we expand into a conditional
 % which is true if #1 represents a float ref.  That is, the magic
-% \currentsection value which we \setref above.
+% value which we passed to \setref above.
 %
 \def\iffloat#1{\expandafter\doiffloat#1==\finish}
 %
@@ -9976,6 +10021,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
   \toksA = \expandafter{\csname XR#1-lof\endcsname}%
   %
   % use the same \entry macro we use to generate the TOC and index.
+  \let\entry\entryinternal
   \edef\writeentry{\noexpand\entry{\the\toksA}{\csname XR#1-pg\endcsname}}%
   \writeentry
 }}
@@ -10071,17 +10117,24 @@ directory should work if nowhere else does.}
   \fi
 \fi
 
+\let\xetexpreauxfile\relax
+\let\xetexpostauxfile\relax
+
 % Set I/O by bytes instead of UTF-8 sequence for XeTeX and LuaTex
 % for non-UTF-8 (byte-wise) encodings.
 %
 \def\setbytewiseio{%
   \ifxetex
-    \XeTeXdefaultencoding "bytes"  % For subsequent files to be read
+    % For document root file
-    \XeTeXinputencoding "bytes"  % For document root file
+    \XeTeXinputencoding "bytes"
-    % Unfortunately, there seems to be no corresponding XeTeX command for
+    %
-    % output encoding.  This is a problem for auxiliary index and TOC files.
+    % Setting for subsequent files to be read with @include.
-    % The only solution would be perhaps to write out @U{...} sequences in
+    \XeTeXdefaultencoding "bytes"
-    % place of non-ASCII characters.
+    %
+    % Use UTF-8 for reading auxiliary index and TOC files, which are
+    % always output in UTF-8 with XeTeX.
+    \def\xetexpreauxfile{\XeTeXdefaultencoding "UTF-8"}%
+    \def\xetexpostauxfile{\XeTeXdefaultencoding "bytes"}%
   \fi
 
   \ifluatex
@@ -10713,12 +10766,12 @@ directory should work if nowhere else does.}
 
 % Suppress ligature creation from adjacent characters.
 \ifluatex
-  \def\nolig{{}}
-\else
   % Braces do not suppress ligature creation in LuaTeX, e.g. in of{}fice
   % to suppress the "ff" ligature.  Using a kern appears to be the only
   % workaround.
   \def\nolig{\kern0pt{}}
+\else
+  \def\nolig{{}}
 \fi
 
 % https://en.wikipedia.org/wiki/Plane_(Unicode)#Basic_M

doc/misc/tramp.texi

@@ -6769,6 +6769,15 @@ the following settings are required:
 @end group
 @end lisp
 
+@vindex warning-suppress-types
+@value{tramp} warnings are displayed in the @file{*Warnings*} buffer,
+which pops up.  If you don't want to see this buffer for every
+@value{tramp} warning, set @code{warning-suppress-types}:
+
+@lisp
+(setq warning-suppress-types '((tramp)))
+@end lisp
+
 If @code{tramp-verbose} is greater than or equal to 10, Lisp
 backtraces are also added to the @value{tramp} debug buffer in case of
 errors.

doc/misc/use-package.texi

@@ -1471,7 +1471,7 @@ faces.  Example:
 (use-package example
   :custom-face
   (example-1-face ((t (:foreground "LightPink"))))
-  (example-2-face ((t (:foreground "LightGreen"))) face-defspec-spec))
+  (example-2-face ((t (:foreground "LightGreen")))))
 @end group
 
 @group
@@ -1486,6 +1486,11 @@ faces.  Example:
 @end group
 @end lisp
 
+Similarly to @code{:custom} (@pxref{User options}), this allows
+configuring customizable faces outside of Customize (@pxref{Saving
+Customizations,,, emacs, GNU Emacs Manual}).  Using both systems to
+configure the same face can lead to confusing results.
+
 @node Hiding minor modes
 @section Hiding minor modes with diminish and delight
 @cindex hiding minor modes

etc/DEBUG

@@ -19,11 +19,11 @@ such as --prefix):
   ./configure --enable-checking='yes,glyphs' --enable-check-lisp-object-type \
     CFLAGS='-O0 -g3'
 
-The -O0 flag is important, as debugging optimized code can be hard.
+The -O0 flag is important, as debugging optimized code can be hard, even
-If the problem happens only with optimized code, you may need to
+in the case that the -Og compiler option is used.[1]  If the problem
-enable optimizations.  If that happens, try using -Og first instead of
+happens only with optimized code, you may need to enable optimizations.
--O2, as -Og disables some optimizations that make debugging some code
+If that happens, try using -Og first instead of -O2, as -Og disables
-exceptionally hard.
+some optimizations that make debugging some code exceptionally hard.
 
 Older versions of GCC may need more than just the -g3 flag.  For more,
 search for "analyze failed assertions" below.
@@ -38,6 +38,9 @@ this below under "Debugging Emacs redisplay problems".
 Emacs needs not be installed to be debugged, you can debug the binary
 created in the 'src' directory.
 
+[1]  gcc's -Og has some known problems and limitations, documented here:
+     https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78685
+
 *** Configuring GDB
 
 To start GDB to debug Emacs, you can simply type "gdb ./emacs RET" at

etc/EGLOT-NEWS

@@ -47,6 +47,13 @@ The composition of Eglot's mode line can be fully customized by adding
 or removing symbols and strings from the customizable variable
 'eglot-mode-line-format'
 
+** Improved diagnostic-reporting performance and bugfixes (bug#77588)
+
+Eglot remembers the LSP document version to which diagonstics reported
+by the LSP server pertain.  This helps in skipping useless or harmful
+updates, avoiding flakiness with code actions and flickering overlays
+when the buffer is changed.
+
 
 * Changes in Eglot 1.18 (20/1/2025)
 

etc/emacs.metainfo.xml

@@ -37,15 +37,50 @@
  <url type="contribute">https://www.gnu.org/software/emacs/manual/html_node/emacs/Contributing.html</url>
  <launchable type="desktop-id">emacs.desktop</launchable>
  <launchable type="service">emacs.service</launchable>
+ <recommends>
+   <control>keyboard</control>
+
+   <!-- 80×24 at 6×13 per character -->
+   <display_length side="longest">480</display_length>
+   <display_length side="shortest">312</display_length>
+ </recommends>
+ <supports>
+   <control>console</control>
+   <control>pointing</control>
+   <control>touch</control>
+   <internet/>
+ </supports>
  <project_group>GNU</project_group>
  <project_license>GPL-3.0+ and GFDL-1.3+</project_license>
  <developer_name>Free Software Foundation</developer_name>
  <screenshots>
   <screenshot type="default">
-    <image type="source" width="632" height="354">https://www.gnu.org/software/emacs/images/appdata-26.png</image>
+    <image type="source" width="1024" height="576">https://www.gnu.org/software/emacs/images/appdata-26.png</image>
-    <caption>Editing a Lisp program whilst viewing the Emacs manual.</caption>
+    <caption>Editing a Lisp program, whilst viewing the manual</caption>
   </screenshot>
  </screenshots>
+
+ <!-- https://hughsie.github.io/oars/generate.html -->
+ <content_rating type="oars-1.1">
+   <!-- M-x doctor -->
+   <content_attribute id="violence-fantasy">moderate</content_attribute>
+   <content_attribute id="violence-sexual">intense</content_attribute>
+   <content_attribute id="drugs-alcohol">mild</content_attribute>
+   <content_attribute id="drugs-narcotics">mild</content_attribute>
+   <content_attribute id="sex-themes">moderate</content_attribute>
+   <content_attribute id="language-profanity">intense</content_attribute>
+
+   <!-- etc/JOKES -->
+   <content_attribute id="language-humor">mild</content_attribute>
+   <content_attribute id="sex-nudity">mild</content_attribute>
+
+   <!-- Gnus, rirc, etc. -->
+   <content_attribute id="social-chat">intense</content_attribute>
+
+   <!-- M-x report-emacs-bug -->
+   <content_attribute id="social-info">intense</content_attribute>
+ </content_rating>
+
  <update_contact>emacs-devel_AT_gnu.org</update_contact>
  <branding>
     <color type="primary" scheme_preference="light">#7f5ab6</color>

etc/themes/modus-operandi-deuteranopia-theme.el

@@ -1,6 +1,6 @@
 ;;; modus-operandi-deuteranopia-theme.el --- Deuteranopia-optimized theme with a white background -*- lexical-binding:t -*-
 
-;; Copyright (C) 2019-2025 Free Software Foundation, Inc.
+;; Copyright (C) 2019-2025  Free Software Foundation, Inc.
 
 ;; Author: Protesilaos Stavrou <info@protesilaos.com>
 ;; Maintainer: Protesilaos Stavrou <info@protesilaos.com>
@@ -167,15 +167,11 @@ standard)."
 
       (bg-completion       "#c0deff")
       (bg-hover            "#b2e4dc")
-      (bg-hover-secondary  "#f5d0a0")
+      (bg-hover-secondary  "#e5d7a0")
       (bg-hl-line          "#dae5ec")
       (bg-region           "#bdbdbd")
       (fg-region           "#000000")
 
-      (bg-char-0 "#7feaff")
-      (bg-char-1 "#ffaaff")
-      (bg-char-2 "#dff000")
-
       (bg-mode-line-active        "#d0d6ff")
       (fg-mode-line-active        "#0f0f0f")
       (border-mode-line-active    "#4f4f74")
@@ -216,13 +212,6 @@ standard)."
 
       (bg-diff-context    "#f3f3f3")
 
-;;; Paren match
-
-      (bg-paren-match        "#5fcfff")
-      (fg-paren-match        fg-main)
-      (bg-paren-expression   "#efd3f5")
-      (underline-paren-match unspecified)
-
 ;;; Mappings
 
 ;;;; General mappings
@@ -257,17 +246,17 @@ standard)."
 ;;;; Code mappings
 
       (bracket fg-main)
-      (builtin magenta-warmer)
+      (builtin yellow)
       (comment yellow-cooler)
-      (constant blue-cooler)
+      (constant blue-faint)
       (delimiter fg-main)
       (docmarkup magenta-faint)
       (docstring green-faint)
-      (fnname magenta)
+      (fnname yellow-warmer)
-      (keyword magenta-cooler)
+      (keyword blue-cooler)
       (number fg-main)
       (operator fg-main)
-      (preprocessor red-cooler)
+      (preprocessor magenta-cooler)
       (punctuation fg-main)
       (rx-backslash blue-cooler)
       (rx-construct yellow-cooler)
@@ -275,12 +264,19 @@ standard)."
       (type cyan-cooler)
       (variable cyan)
 
+;;;; Paren match
+
+      (bg-paren-match        bg-cyan-subtle)
+      (fg-paren-match        fg-main)
+      (underline-paren-match unspecified)
+      (bg-paren-expression   bg-yellow-nuanced)
+
 ;;;; Accent mappings
 
-      (accent-0 blue)
+      (accent-0 blue-warmer)
       (accent-1 yellow-warmer)
       (accent-2 cyan)
-      (accent-3 magenta-cooler)
+      (accent-3 yellow-cooler)
 
 ;;;; Button mappings
 
@@ -291,10 +287,10 @@ standard)."
 
 ;;;; Completion mappings
 
-      (fg-completion-match-0 blue)
+      (fg-completion-match-0 blue-warmer)
       (fg-completion-match-1 yellow-warmer)
       (fg-completion-match-2 cyan)
-      (fg-completion-match-3 magenta-cooler)
+      (fg-completion-match-3 yellow-cooler)
       (bg-completion-match-0 unspecified)
       (bg-completion-match-1 unspecified)
       (bg-completion-match-2 unspecified)
@@ -313,7 +309,7 @@ standard)."
       (date-scheduled yellow-cooler)
       (date-scheduled-subtle yellow-faint)
       (date-weekday cyan)
-      (date-weekend magenta)
+      (date-weekend blue-cooler)
 
 ;;;; Line number mappings
 
@@ -374,7 +370,7 @@ standard)."
       (fg-prose-macro magenta-cooler)
 
       (bg-prose-verbatim unspecified)
-      (fg-prose-verbatim magenta-warmer)
+      (fg-prose-verbatim yellow)
 
       (prose-done blue)
       (prose-todo yellow-warmer)
@@ -385,7 +381,7 @@ standard)."
       (prose-table fg-alt)
       (prose-table-formula yellow-warmer)
 
-      (prose-tag magenta-faint)
+      (prose-tag fg-alt)
 
 ;;;; Rainbow mappings
 
@@ -403,7 +399,7 @@ standard)."
 
       (bg-search-current bg-yellow-intense)
       (bg-search-lazy bg-blue-intense)
-      (bg-search-replace bg-magenta-intense)
+      (bg-search-replace bg-yellow-intense)
 
       (bg-search-rx-group-0 bg-cyan-intense)
       (bg-search-rx-group-1 bg-magenta-intense)
@@ -463,11 +459,11 @@ standard)."
       (fg-heading-0 cyan-cooler)
       (fg-heading-1 fg-main)
       (fg-heading-2 yellow-faint)
-      (fg-heading-3 fg-alt)
+      (fg-heading-3 blue-faint)
-      (fg-heading-4 magenta)
+      (fg-heading-4 green-faint)
-      (fg-heading-5 green-faint)
+      (fg-heading-5 magenta-cooler)
-      (fg-heading-6 red-faint)
+      (fg-heading-6 yellow-cooler)
-      (fg-heading-7 cyan-warmer)
+      (fg-heading-7 cyan)
       (fg-heading-8 fg-dim)
 
       (bg-heading-0 unspecified)

etc/themes/modus-operandi-theme.el

@@ -1,6 +1,6 @@
 ;;; modus-operandi-theme.el --- Elegant, highly legible theme with a white background -*- lexical-binding:t -*-
 
-;; Copyright (C) 2019-2025 Free Software Foundation, Inc.
+;; Copyright (C) 2019-2025  Free Software Foundation, Inc.
 
 ;; Author: Protesilaos Stavrou <info@protesilaos.com>
 ;; Maintainer: Protesilaos Stavrou <info@protesilaos.com>
@@ -170,10 +170,6 @@ which corresponds to a minimum contrast in relative luminance of
       (bg-region           "#bdbdbd")
       (fg-region           "#000000")
 
-      (bg-char-0 "#7feaff")
-      (bg-char-1 "#ffaaff")
-      (bg-char-2 "#dff000")
-
       (bg-mode-line-active        "#c8c8c8")
       (fg-mode-line-active        "#000000")
       (border-mode-line-active    "#5a5a5a")
@@ -214,13 +210,6 @@ which corresponds to a minimum contrast in relative luminance of
 
       (bg-diff-context    "#f3f3f3")
 
-;;; Paren match
-
-      (bg-paren-match        "#5fcfff")
-      (fg-paren-match        fg-main)
-      (bg-paren-expression   "#efd3f5")
-      (underline-paren-match unspecified)
-
 ;;; Mappings
 
 ;;;; General mappings
@@ -273,6 +262,13 @@ which corresponds to a minimum contrast in relative luminance of
       (type cyan-cooler)
       (variable cyan)
 
+;;;; Paren match
+
+      (bg-paren-match        bg-cyan-subtle)
+      (fg-paren-match        fg-main)
+      (underline-paren-match unspecified)
+      (bg-paren-expression   bg-yellow-nuanced)
+
 ;;;; Accent mappings
 
       (accent-0 blue)

etc/themes/modus-operandi-tinted-theme.el

@@ -1,6 +1,6 @@
-;;; modus-operandi-tinted-theme.el --- Elegant, highly legible theme with a light ocher background -*- lexical-binding:t -*-
+;;; modus-operandi-tinted-theme.el --- Elegant, highly legible theme with a light ochre background -*- lexical-binding:t -*-
 
-;; Copyright (C) 2019-2025 Free Software Foundation, Inc.
+;; Copyright (C) 2019-2025  Free Software Foundation, Inc.
 
 ;; Author: Protesilaos Stavrou <info@protesilaos.com>
 ;; Maintainer: Protesilaos Stavrou <info@protesilaos.com>
@@ -44,7 +44,7 @@
 
 ;;;###theme-autoload
   (deftheme modus-operandi-tinted
-    "Elegant, highly legible theme with a light ocher background.
+    "Elegant, highly legible theme with a light ochre background.
 Conforms with the highest legibility standard for color contrast
 between background and foreground in any given piece of text,
 which corresponds to a minimum contrast in relative luminance of
@@ -73,18 +73,18 @@ which corresponds to a minimum contrast in relative luminance of
       (red-cooler      "#a0132f")
       (red-faint       "#7f0000")
       (red-intense     "#d00000")
-      (green           "#006800")
+      (green           "#006300")
-      (green-warmer    "#316500")
+      (green-warmer    "#306010")
-      (green-cooler    "#00663f")
+      (green-cooler    "#00603f")
       (green-faint     "#2a5045")
       (green-intense   "#008900")
-      (yellow          "#6f5500")
+      (yellow          "#6d5000")
-      (yellow-warmer   "#884900")
+      (yellow-warmer   "#894000")
-      (yellow-cooler   "#7a4f2f")
+      (yellow-cooler   "#602938")
-      (yellow-faint    "#624416")
+      (yellow-faint    "#574316")
       (yellow-intense  "#808000")
       (blue            "#0031a9")
-      (blue-warmer     "#3548cf")
+      (blue-warmer     "#3546c2")
       (blue-cooler     "#0000b0")
       (blue-faint      "#003497")
       (blue-intense    "#0000ff")
@@ -93,10 +93,10 @@ which corresponds to a minimum contrast in relative luminance of
       (magenta-cooler  "#531ab6")
       (magenta-faint   "#7c318f")
       (magenta-intense "#dd22dd")
-      (cyan            "#005e8b")
+      (cyan            "#00598b")
-      (cyan-warmer     "#3f578f")
+      (cyan-warmer     "#32548f")
       (cyan-cooler     "#005f5f")
-      (cyan-faint      "#005077")
+      (cyan-faint      "#304463")
       (cyan-intense    "#008899")
 
 ;;; Uncommon accent foregrounds
@@ -165,15 +165,11 @@ which corresponds to a minimum contrast in relative luminance of
 
       (bg-completion       "#f0c1cf")
       (bg-hover            "#b2e4dc")
-      (bg-hover-secondary  "#f5d0a0")
+      (bg-hover-secondary  "#dfe09f")
       (bg-hl-line          "#f1d5d0")
       (bg-region           "#c2bcb5")
       (fg-region           "#000000")
 
-      (bg-char-0 "#7feaff")
-      (bg-char-1 "#ffaaff")
-      (bg-char-2 "#dff000")
-
       (bg-mode-line-active        "#cab9b2")
       (fg-mode-line-active        "#000000")
       (border-mode-line-active    "#545454")
@@ -214,13 +210,6 @@ which corresponds to a minimum contrast in relative luminance of
 
       (bg-diff-context    "#efe9df")
 
-;;; Paren match
-
-      (bg-paren-match        "#7fdfcf")
-      (fg-paren-match        fg-main)
-      (bg-paren-expression   "#efd3f5")
-      (underline-paren-match unspecified)
-
 ;;; Mappings
 
 ;;;; General mappings
@@ -230,11 +219,11 @@ which corresponds to a minimum contrast in relative luminance of
 
       (keybind red)
       (name magenta)
-      (identifier yellow-cooler)
+      (identifier yellow-faint)
 
       (err red)
-      (warning yellow-warmer)
+      (warning yellow)
-      (info cyan-cooler)
+      (info green)
 
       (underline-err red-intense)
       (underline-warning yellow-intense)
@@ -255,30 +244,37 @@ which corresponds to a minimum contrast in relative luminance of
 ;;;; Code mappings
 
       (bracket fg-main)
-      (builtin magenta-warmer)
+      (builtin magenta)
       (comment red-faint)
-      (constant blue-cooler)
+      (constant magenta-cooler)
       (delimiter fg-main)
       (docmarkup magenta-faint)
-      (docstring green-faint)
+      (docstring cyan-faint)
-      (fnname magenta)
+      (fnname yellow-cooler)
-      (keyword magenta-cooler)
+      (keyword blue)
       (number fg-main)
       (operator fg-main)
-      (preprocessor red-cooler)
+      (preprocessor yellow-warmer)
       (punctuation fg-main)
-      (rx-backslash magenta)
+      (rx-backslash magenta-warmer)
-      (rx-construct green-cooler)
+      (rx-construct magenta-cooler)
-      (string blue-warmer)
+      (string cyan)
-      (type cyan-cooler)
+      (type green-warmer)
-      (variable cyan)
+      (variable green-cooler)
+
+;;;; Paren match
+
+      (bg-paren-match        bg-cyan-subtle)
+      (fg-paren-match        fg-main)
+      (underline-paren-match unspecified)
+      (bg-paren-expression   bg-yellow-nuanced)
 
 ;;;; Accent mappings
 
-      (accent-0 blue)
+      (accent-0 red-cooler)
-      (accent-1 magenta-warmer)
+      (accent-1 cyan)
-      (accent-2 cyan)
+      (accent-2 magenta-cooler)
-      (accent-3 red)
+      (accent-3 yellow-warmer)
 
 ;;;; Button mappings
 
@@ -336,14 +332,14 @@ which corresponds to a minimum contrast in relative luminance of
 
 ;;;; Mail mappings
 
-      (mail-cite-0 blue-faint)
+      (mail-cite-0 cyan-cooler)
-      (mail-cite-1 yellow-warmer)
+      (mail-cite-1 yellow)
-      (mail-cite-2 cyan-cooler)
+      (mail-cite-2 green-warmer)
       (mail-cite-3 red-cooler)
-      (mail-part cyan)
+      (mail-part magenta-cooler)
-      (mail-recipient magenta-cooler)
+      (mail-recipient blue-warmer)
       (mail-subject magenta-warmer)
-      (mail-other magenta-faint)
+      (mail-other magenta)
 
 ;;;; Mark mappings
 
@@ -356,7 +352,7 @@ which corresponds to a minimum contrast in relative luminance of
 
 ;;;; Prompt mappings
 
-      (fg-prompt cyan-cooler)
+      (fg-prompt green-cooler)
       (bg-prompt unspecified)
 
 ;;;; Prose mappings
@@ -366,13 +362,13 @@ which corresponds to a minimum contrast in relative luminance of
       (bg-prose-block-contents bg-dim)
 
       (bg-prose-code unspecified)
-      (fg-prose-code cyan-cooler)
+      (fg-prose-code green-cooler)
 
       (bg-prose-macro unspecified)
-      (fg-prose-macro magenta-cooler)
+      (fg-prose-macro blue-cooler)
 
       (bg-prose-verbatim unspecified)
-      (fg-prose-verbatim magenta-warmer)
+      (fg-prose-verbatim yellow-warmer)
 
       (prose-done green)
       (prose-todo red)
@@ -458,7 +454,7 @@ which corresponds to a minimum contrast in relative luminance of
 
 ;;;; Heading mappings
 
-      (fg-heading-0 cyan-cooler)
+      (fg-heading-0 green-cooler)
       (fg-heading-1 fg-main)
       (fg-heading-2 yellow-faint)
       (fg-heading-3 fg-alt)

etc/themes/modus-operandi-tritanopia-theme.el

@@ -1,6 +1,6 @@
 ;;; modus-operandi-tritanopia-theme.el --- Tritanopia-optimized theme with a white background -*- lexical-binding:t -*-
 
-;; Copyright (C) 2019-2025 Free Software Foundation, Inc.
+;; Copyright (C) 2019-2025  Free Software Foundation, Inc.
 
 ;; Author: Protesilaos Stavrou <info@protesilaos.com>
 ;; Maintainer: Protesilaos Stavrou <info@protesilaos.com>
@@ -63,7 +63,7 @@ standard)."
       (bg-dim           "#f2f2f2")
       (fg-main          "#000000")
       (fg-dim           "#595959")
-      (fg-alt           "#193668")
+      (fg-alt           "#024960")
       (bg-active        "#c4c4c4")
       (bg-inactive      "#e0e0e0")
       (border           "#9f9f9f")
@@ -167,15 +167,11 @@ standard)."
 
       (bg-completion       "#afdfef")
       (bg-hover            "#ffafbc")
-      (bg-hover-secondary  "#9fdfff")
+      (bg-hover-secondary  "#abdfdd")
       (bg-hl-line          "#dfeaec")
       (bg-region           "#bdbdbd")
       (fg-region           "#000000")
 
-      (bg-char-0 "#ff908f")
-      (bg-char-1 "#bfbfff")
-      (bg-char-2 "#5fcfdf")
-
       (bg-mode-line-active        "#afe0f2")
       (fg-mode-line-active        "#0f0f0f")
       (border-mode-line-active    "#2f4f44")
@@ -216,13 +212,6 @@ standard)."
 
       (bg-diff-context    "#f3f3f3")
 
-;;; Paren match
-
-      (bg-paren-match        "#5fcfff")
-      (fg-paren-match        fg-main)
-      (bg-paren-expression   "#efd3f5")
-      (underline-paren-match unspecified)
-
 ;;; Mappings
 
 ;;;; General mappings
@@ -275,6 +264,13 @@ standard)."
       (type blue-warmer)
       (variable cyan-cooler)
 
+;;;; Paren match
+
+      (bg-paren-match        bg-cyan-subtle)
+      (fg-paren-match        fg-main)
+      (underline-paren-match unspecified)
+      (bg-paren-expression   bg-red-nuanced)
+
 ;;;; Accent mappings
 
       (accent-0 cyan)
@@ -385,7 +381,7 @@ standard)."
       (prose-table fg-alt)
       (prose-table-formula red-cooler)
 
-      (prose-tag magenta-faint)
+      (prose-tag fg-alt)
 
 ;;;; Rainbow mappings
 

etc/themes/modus-themes.el

@@ -1,12 +1,12 @@
 ;;; modus-themes.el --- Elegant, highly legible and customizable themes -*- lexical-binding:t -*-
 
-;; Copyright (C) 2019-2025 Free Software Foundation, Inc.
+;; Copyright (C) 2019-2025  Free Software Foundation, Inc.
 
 ;; Author: Protesilaos Stavrou <info@protesilaos.com>
 ;; Maintainer: Protesilaos Stavrou <info@protesilaos.com>
 ;; URL: https://github.com/protesilaos/modus-themes
-;; Version: 4.6.0
+;; Version: 4.7.0
-;; Package-Requires: ((emacs "27.1"))
+;; Package-Requires: ((emacs "28.1"))
 ;; Keywords: faces, theme, accessibility
 
 ;; This file is part of GNU Emacs.
@@ -309,11 +309,12 @@ If the value is nil or otherwise does not specify two valid Modus
 themes, the command `modus-themes-toggle' reverts to selecting a
 theme from the list of available Modus themes.  In effect, it is
 the same as using the command `modus-themes-select'."
-  :type `(choice
+  :type (let ((themes (mapcar (lambda (theme) (list 'const theme)) modus-themes-items)))
-          (const :tag "No toggle" nil)
+          `(choice
-          (list :tag "Pick two themes to toggle between"
+            (const :tag "No toggle" nil)
-                (choice :tag "Theme one of two" ,@(mapcar (lambda (theme) (list 'const theme)) modus-themes-items))
+            (list :tag "Pick two themes to toggle between"
-                (choice :tag "Theme two of two" ,@(mapcar (lambda (theme) (list 'const theme)) modus-themes-items))))
+                  (choice :tag "Theme one of two" ,@themes)
+                  (choice :tag "Theme two of two" ,@themes))))
   :package-version '(modus-themes . "4.0.0")
   :version "30.1"
   :group 'modus-themes)
@@ -327,7 +328,8 @@ the same as using the command `modus-themes-select'."
   :version "31.1"
   :group 'modus-themes)
 
-(defvaralias 'modus-themes-post-load-hook 'modus-themes-after-load-theme-hook)
+(defvaralias 'modus-themes-post-load-hook 'modus-themes-after-load-theme-hook
+  "Alias for `modus-themes-after-load-theme-hook'.")
 
 (defcustom modus-themes-after-load-theme-hook nil
   "Hook that runs after loading a Modus theme.
@@ -1153,7 +1155,7 @@ This function is used in the macros `modus-themes-theme',
           (eq value 'unspecified))
       value)
      ((and (symbolp value)
-           (memq value (mapcar #'car palette)))
+           value)
       (modus-themes--retrieve-palette-value value palette))
      (t
       'unspecified))))
@@ -1209,15 +1211,15 @@ symbol, which is safe when used as a face attribute's value."
   "Render `modus-themes--list-known-themes' as completion with theme category."
   (modus-themes--completion-table 'theme (modus-themes--list-known-themes)))
 
-(defun modus-themes--select-prompt ()
+(defun modus-themes--select-prompt (&optional prompt)
-  "Minibuffer prompt to select a Modus theme."
+  "Minibuffer prompt to select a Modus theme.
+With optional PROMPT string, use it.  Else use a generic prompt."
   (let ((completion-extra-properties `(:annotation-function ,#'modus-themes--annotate-theme)))
     (intern
      (completing-read
-      "Select Modus theme: "
+      (or prompt "Select Modus theme: ")
       (modus-themes--completion-table-candidates)
-      nil t nil
+      nil t nil 'modus-themes--select-theme-history))))
-      'modus-themes--select-theme-history))))
 
 ;;;###autoload
 (defun modus-themes-select (theme)
@@ -1231,13 +1233,13 @@ Disable other themes per `modus-themes-disable-other-themes'."
 
 (defun modus-themes--toggle-theme-p ()
   "Return non-nil if `modus-themes-to-toggle' are valid."
-  (mapc
+  (condition-case nil
-   (lambda (theme)
+      (dolist (theme modus-themes-to-toggle)
-     (if (or (memq theme modus-themes-items)
+        (or (memq theme modus-themes-items)
-             (memq theme (modus-themes--list-known-themes)))
+            (memq theme (modus-themes--list-known-themes))
-         theme
+            (error "`%s' is not part of `modus-themes-items'" theme)))
-       (user-error "`%s' is not part of `modus-themes-items'" theme)))
+    (error nil)
-   modus-themes-to-toggle))
+    (:success modus-themes-to-toggle)))
 
 ;;;###autoload
 (defun modus-themes-toggle ()
@@ -1294,87 +1296,88 @@ the list becomes the last.  Do not modify THEMES in the process."
 
 ;;;;; Preview a theme palette
 
-(defun modus-themes--list-colors-render (buffer theme &optional mappings &rest _)
+(defun modus-themes--list-colors-get-mappings (palette)
-  "Render colors in BUFFER from THEME for `modus-themes-list-colors'.
+  "Get the semantic palette entries in PALETTE.
-Optional MAPPINGS changes the output to only list the semantic
+PALETTE is the value of a variable like `modus-operandi-palette'."
-color mappings of the palette, instead of its named colors."
+  (seq-remove
+   (lambda (cell)
+     (stringp (cadr cell)))
+   palette))
+
+(defun modus-themes--list-colors-tabulated (theme &optional mappings)
+  "Return a data structure of THEME palette or MAPPINGS for tabulated list."
   (let* ((current-palette (modus-themes--palette-value theme mappings))
          (palette (if mappings
-                      (seq-remove (lambda (cell)
+                      (modus-themes--list-colors-get-mappings current-palette)
-                                    (stringp (cadr cell)))
+                    current-palette)))
-                                  current-palette)
+    (mapcar (lambda (cell)
-                    current-palette))
+              (pcase-let* ((`(,name ,value) cell)
-         (current-buffer buffer)
+                           (name-string (format "%s" name))
-         (current-theme theme))
+                           (value-string (format "%s" value))
-    (with-help-window buffer
+                           (value-string-padded (string-pad value-string 30))
-      (with-current-buffer standard-output
+                           (color (modus-themes-get-color-value name mappings theme))) ; resolve a semantic mapping
-        (erase-buffer)
+                (list name
-        (when (<= (display-color-cells) 256)
+                      (vector
-          (insert (concat "Your display terminal may not render all color previews!\n"
+                       (if (and (symbolp value)
-                          "It seems to only support <= 256 colors.\n\n"))
+                                (not (eq value 'unspecified)))
-          (put-text-property (point-min) (point) 'face 'warning))
+                           "Yes"
-        ;; We need this to properly render the first line.
+                         "")
-        (insert " ")
+                       name-string
-        (dolist (cell palette)
+                       (propertize value-string 'face `( :foreground ,color))
-          (let* ((name (car cell))
+                       (propertize value-string-padded 'face (list :background color
-                 (color (modus-themes-get-color-value name mappings theme))
+                                                                   :foreground (if (string= color "unspecified")
-                 (pad (make-string 10 ?\s))
+                                                                                   (readable-foreground-color (modus-themes-get-color-value 'bg-main nil theme))
-                 (fg (if (eq color 'unspecified)
+                                                                                 (readable-foreground-color color))))))))
-                         (progn
+            palette)))
-                           (readable-foreground-color (modus-themes-get-color-value 'bg-main nil theme))
-                           (setq pad (make-string 6 ?\s)))
-                       (readable-foreground-color color))))
-            (let ((old-point (point)))
-              (insert (format "%s %s" color pad))
-              (put-text-property old-point (point) 'face `( :foreground ,color)))
-            (let ((old-point (point)))
-              (insert (format " %s %s %s\n" color pad name))
-              (put-text-property old-point (point)
-                                 'face `( :background ,color
-                                          :foreground ,fg
-                                          :extend t)))
-            ;; We need this to properly render the last line.
-            (insert " ")))
-        (setq-local revert-buffer-function
-                    (lambda (_ignore-auto _noconfirm)
-                      (modus-themes--list-colors-render current-buffer current-theme mappings)))))))
 
-(defvar modus-themes--list-colors-prompt-history '()
+(defvar modus-themes-current-preview nil)
-  "Minibuffer history for `modus-themes--list-colors-prompt'.")
+(defvar modus-themes-current-preview-show-mappings nil)
 
-(defun modus-themes--list-colors-prompt ()
+(defun modus-themes--set-tabulated-entries ()
-  "Prompt for Modus theme.
+  "Set the value of `tabulated-list-entries' with palette entries."
-Helper function for `modus-themes-list-colors'."
+  (setq-local tabulated-list-entries
-  (let ((def (format "%s" (modus-themes--current-theme)))
+              (modus-themes--list-colors-tabulated modus-themes-current-preview modus-themes-current-preview-show-mappings)))
-        (completion-extra-properties `(:annotation-function ,#'modus-themes--annotate-theme)))
-    (completing-read
-     (format "Use palette from theme [%s]: " def)
-     (modus-themes--completion-table-candidates)
-     nil t nil
-     'modus-themes--list-colors-prompt-history def)))
 
 (defun modus-themes-list-colors (theme &optional mappings)
-  "Preview named colors of the Modus THEME of choice.
+  "Preview the palette of the Modus THEME of choice.
-With optional prefix argument for MAPPINGS preview the semantic
+With optional prefix argument for MAPPINGS preview only the semantic
-color mappings instead of the named colors."
+color mappings instead of the complete palette."
-  (interactive (list (intern (modus-themes--list-colors-prompt)) current-prefix-arg))
+  (interactive
-  (modus-themes--list-colors-render
+   (let ((prompt (if current-prefix-arg
-   (format (if mappings "*%s-list-mappings*" "*%s-list-colors*") theme)
+                     "Preview palette mappings of THEME: "
-   theme
+                   "Preview palette of THEME: ")))
-   mappings))
+     (list
+      (modus-themes--select-prompt prompt)
+      current-prefix-arg)))
+  (let ((buffer (get-buffer-create (format (if mappings "*%s-list-mappings*" "*%s-list-all*") theme))))
+    (with-current-buffer buffer
+      (let ((modus-themes-current-preview theme)
+            (modus-themes-current-preview-show-mappings mappings))
+        (modus-themes-preview-mode)))
+    (pop-to-buffer buffer)))
 
 (defalias 'modus-themes-preview-colors 'modus-themes-list-colors
-  "Alias of `modus-themes-list-colors'.")
+  "Alias for `modus-themes-list-colors'.")
 
 (defun modus-themes-list-colors-current (&optional mappings)
-  "Call `modus-themes-list-colors' for the current Modus theme.
+  "Like `modus-themes-list-colors' with optional MAPPINGS for the current theme."
-Optional prefix argument MAPPINGS has the same meaning as for
-`modus-themes-list-colors'."
   (interactive "P")
   (modus-themes-list-colors (modus-themes--current-theme) mappings))
 
 (defalias 'modus-themes-preview-colors-current 'modus-themes-list-colors-current
-  "Alias of `modus-themes-list-colors-current'.")
+  "Alias for `modus-themes-list-colors-current'.")
+
+(define-derived-mode modus-themes-preview-mode tabulated-list-mode "Modus palette"
+  "Major mode to display a Modus themes palette."
+  :interactive nil
+  (setq-local tabulated-list-format
+              [("Mapping?" 10 t)
+               ("Symbol name" 30 t)
+               ("As foreground" 30 t)
+               ("As background" 0 t)])
+  (modus-themes--set-tabulated-entries)
+  (tabulated-list-init-header)
+  (tabulated-list-print))
 
 
 
@@ -1449,7 +1452,7 @@ color that is combined with FG-FOR-BG."
           :foreground fg
           :weight
           ;; If we have `bold' specifically, we inherit the face of
-          ;; the same name.  This allows the user to customize that
+          ;; the same name.  This allows the user to customise that
           ;; face, such as to change its font family.
           (if (and weight (not (eq weight 'bold)))
               weight
@@ -1670,6 +1673,7 @@ FG and BG are the main colors."
     `(tool-bar ((,c :background ,bg-dim :foreground ,fg-main)))
     `(vertical-border ((,c :foreground ,border)))
 ;;;;; basic and/or ungrouped styles
+    `(abbrev-table-name ((,c :inherit bold)))
     `(appt-notification ((,c :inherit bold :foreground ,modeline-err)))
     `(blink-matching-paren-offscreen ((,c :background ,bg-paren-match)))
     `(bold ((,c :weight bold)))
@@ -1720,6 +1724,25 @@ FG and BG are the main colors."
     `(link ((,c :inherit button)))
     `(link-visited ((,c :background ,bg-link-visited :foreground ,fg-link-visited :underline ,underline-link-visited)))
     `(tooltip ((,c :background ,bg-active :foreground ,fg-main)))
+;;;;; adoc-mode
+    `(adoc-code-face ((,c :inherit font-lock-constant-face)))
+    `(adoc-command-face ((,c :inherit modus-themes-prose-macro)))
+    `(adoc-complex-replacement-face ((,c :background ,bg-magenta-subtle :foreground ,magenta)))
+    `(adoc-emphasis-face ((t (:inherit bold))))
+    `(adoc-gen-face ((,c :foreground ,blue)))
+    `(adoc-meta-face ((,c :inherit modus-themes-fixed-pitch :foreground ,prose-metadata)))
+    `(adoc-meta-hide-face ((,c :inherit modus-themes-fixed-pitch :foreground ,prose-metadata)))
+    `(adoc-replacement-face ((,c :inherit font-lock-escape-face)))
+    `(adoc-secondary-text-face ((,c :inherit modus-themes-fixed-pitch :foreground ,prose-metadata-value)))
+    `(adoc-table-face ((,c :inherit modus-themes-fixed-pitch :foreground ,prose-table)))
+    `(adoc-title-0-face ((,c :inherit modus-themes-heading-0)))
+    `(adoc-title-1-face ((,c :inherit modus-themes-heading-1)))
+    `(adoc-title-2-face ((,c :inherit modus-themes-heading-2)))
+    `(adoc-title-3-face ((,c :inherit modus-themes-heading-3)))
+    `(adoc-title-4-face ((,c :inherit modus-themes-heading-4)))
+    `(adoc-title-5-face ((,c :inherit modus-themes-heading-5)))
+    `(adoc-typewriter-face ((,c :inherit modus-themes-prose-verbatim)))
+    `(adoc-verbatim-face ((,c :inherit modus-themes-prose-verbatim)))
 ;;;;; agda2-mode
     `(agda2-highlight-bound-variable-face ((,c :inherit font-lock-variable-name-face)))
     `(agda2-highlight-catchall-clause-face ((,c :background ,bg-inactive)))
@@ -1849,13 +1872,14 @@ FG and BG are the main colors."
     `(TeX-error-description-warning ((,c :inherit warning)))
 ;;;;; auto-dim-other-buffers
     `(auto-dim-other-buffers-face ((,c :background ,bg-inactive)))
+    `(auto-dim-other-buffers-hide-face ((,c :foreground ,bg-inactive :background ,bg-inactive)))
 ;;;;; avy
     `(avy-background-face ((,c :background ,bg-dim :foreground ,fg-dim :extend t)))
-    `(avy-goto-char-timer-face ((,c :inherit bold :background ,bg-active)))
+    `(avy-goto-char-timer-face ((,c :inherit (bold modus-themes-search-lazy modus-themes-reset-soft))))
-    `(avy-lead-face ((,c :inherit (bold modus-themes-reset-soft) :background ,bg-char-0)))
+    `(avy-lead-face ((,c :inherit (bold modus-themes-search-current modus-themes-reset-soft))))
-    `(avy-lead-face-0 ((,c :inherit (bold modus-themes-reset-soft) :background ,bg-char-1)))
+    `(avy-lead-face-0 ((,c :inherit (bold modus-themes-search-current modus-themes-reset-soft))))
-    `(avy-lead-face-1 ((,c :inherit modus-themes-reset-soft :background ,bg-inactive)))
+    `(avy-lead-face-1 ((,c :inherit (bold modus-themes-search-current modus-themes-reset-soft))))
-    `(avy-lead-face-2 ((,c :inherit (bold modus-themes-reset-soft) :background ,bg-char-2)))
+    `(avy-lead-face-2 ((,c :inherit (bold modus-themes-search-current modus-themes-reset-soft))))
 ;;;;; aw (ace-window)
     `(aw-background-face ((,c :foreground "gray50")))
     `(aw-key-face ((,c :inherit modus-themes-key-binding)))
@@ -2028,8 +2052,8 @@ FG and BG are the main colors."
 ;;;;; corfu-candidate-overlay
     `(corfu-candidate-overlay-face ((t :inherit shadow)))
 ;;;;; corfu-quick
-    `(corfu-quick1 ((,c :inherit bold :background ,bg-char-0)))
+    `(corfu-quick1 ((,c :inherit (bold modus-themes-search-current))))
-    `(corfu-quick2 ((,c :inherit bold :background ,bg-char-1)))
+    `(corfu-quick2 ((,c :inherit (bold modus-themes-search-current))))
 ;;;;; counsel
     `(counsel-active-mode ((,c :foreground ,keyword)))
     `(counsel-application-name ((,c :foreground ,name)))
@@ -2518,10 +2542,10 @@ FG and BG are the main colors."
     `(geiser-font-lock-xref-link ((,c :inherit button)))
 ;;;;; git-commit
     `(git-commit-comment-action ((,c :inherit font-lock-comment-face)))
-    `(git-commit-comment-branch-local ((,c :inherit font-lock-comment-face :foreground ,accent-0)))
+    `(git-commit-comment-branch-local ((,c :inherit (bold font-lock-comment-face) :foreground ,accent-0)))
-    `(git-commit-comment-branch-remote ((,c :inherit font-lock-comment-face :foreground ,accent-1)))
+    `(git-commit-comment-branch-remote ((,c :inherit (bold font-lock-comment-face) :foreground ,accent-1)))
     `(git-commit-comment-heading ((,c :inherit (bold font-lock-comment-face))))
-    `(git-commit-comment-file ((,c :inherit font-lock-comment-face :foreground ,name)))
+    `(git-commit-comment-file ((,c :inherit font-lock-comment-face :foreground ,accent-2))) ; like `magit-filename'
     `(git-commit-keyword ((,c :foreground ,keyword)))
     `(git-commit-nonempty-second-line ((,c :inherit error)))
     `(git-commit-overlong-summary ((,c :inherit warning)))
@@ -2682,6 +2706,30 @@ FG and BG are the main colors."
     `(hl-fill-column-face ((,c :background ,bg-active)))
 ;;;;; hl-todo
     `(hl-todo ((,c :inherit (bold font-lock-comment-face) :foreground ,err)))
+;;;;; howm
+    `(action-lock-face ((,c :inherit button)))
+    `(howm-mode-keyword-face (( )))
+    `(howm-mode-ref-face ((,c :inherit link)))
+    `(howm-mode-title-face ((,c :inherit modus-themes-heading-0)))
+    `(howm-mode-wiki-face ((,c :inherit link)))
+    `(howm-reminder-deadline-face ((,c :foreground ,date-deadline)))
+    `(howm-reminder-late-deadline-face ((,c :inherit bold :foreground ,date-deadline)))
+    `(howm-reminder-defer-face ((,c :foreground ,date-scheduled)))
+    `(howm-reminder-scheduled-face ((,c :foreground ,date-scheduled)))
+    `(howm-reminder-done-face ((,c :foreground ,prose-done)))
+    `(howm-reminder-todo-face ((,c :foreground ,prose-todo)))
+    `(howm-reminder-normal-face ((,c :foreground ,date-common)))
+    `(howm-reminder-today-face ((,c :inherit bold :foreground ,date-common)))
+    `(howm-reminder-tomorrow-face ((,c :inherit bold :foreground ,date-scheduled)))
+    `(howm-simulate-todo-mode-line-face ((,c :inherit bold)))
+    `(howm-view-empty-face (( )))
+    `(howm-view-hilit-face ((,c :inherit match)))
+    `(howm-view-name-face ((,c :inherit bold)))
+    `(iigrep-counts-face1 ((,c :foreground ,rainbow-1)))
+    `(iigrep-counts-face2 ((,c :foreground ,rainbow-2)))
+    `(iigrep-counts-face3 ((,c :foreground ,rainbow-3)))
+    `(iigrep-counts-face4 ((,c :foreground ,rainbow-4)))
+    `(iigrep-counts-face5 ((,c :foreground ,rainbow-5)))
 ;;;;; hydra
     `(hydra-face-amaranth ((,c :inherit bold :foreground ,yellow-warmer)))
     `(hydra-face-blue ((,c :inherit bold :foreground ,blue)))
@@ -2695,14 +2743,16 @@ FG and BG are the main colors."
     `(ibut-face ((,c :inherit button :background ,bg-link-symbolic :foreground ,fg-link-symbolic :underline ,underline-link-symbolic)))
 ;;;;; icomplete
     `(icomplete-first-match ((,c :inherit modus-themes-completion-match-0)))
+    `(icomplete-vertical-selected-prefix-indicator-face ((,c :inherit bold :foreground ,keybind)))
+    `(icomplete-vertical-unselected-prefix-indicator-face ((,c :inherit shadow)))
     `(icomplete-selected-match ((,c :inherit modus-themes-completion-selected)))
 ;;;;; ido-mode
     `(ido-first-match ((,c :inherit modus-themes-completion-match-0)))
     `(ido-incomplete-regexp ((,c :inherit error)))
     `(ido-indicator ((,c :inherit bold)))
     `(ido-only-match ((,c :inherit ido-first-match)))
-    `(ido-subdir ((,c :foreground ,accent-0)))
+    `(ido-subdir ((,c :foreground ,keyword)))
-    `(ido-virtual ((,c :foreground ,accent-1)))
+    `(ido-virtual ((,c :foreground ,warning)))
 ;;;;; iedit
     `(iedit-occurrence ((,c :inherit modus-themes-search-lazy)))
     `(iedit-read-only-occurrence ((,c :inherit modus-themes-search-current)))
@@ -2803,19 +2853,19 @@ FG and BG are the main colors."
     `(ivy-minibuffer-match-face-4 ((,c :inherit modus-themes-completion-match-2)))
     `(ivy-remote ((,c :inherit italic)))
     `(ivy-separator ((,c :inherit shadow)))
-    `(ivy-subdir ((,c :foreground ,accent-0)))
+    `(ivy-subdir ((,c :foreground ,keyword)))
-    `(ivy-virtual ((,c :foreground ,accent-1)))
+    `(ivy-virtual ((,c :foreground ,warning)))
 ;;;;; ivy-posframe
     `(ivy-posframe-border ((,c :background ,border)))
     `(ivy-posframe-cursor ((,c :background ,fg-main :foreground ,bg-main)))
 ;;;;; jabber
     `(jabber-activity-face ((,c :foreground ,modeline-info)))
     `(jabber-roster-user-away ((,c :foreground ,red-faint)))
-    `(jabber-roster-user-xa ((,c :foreground ,magenta :slant italic)))
+    `(jabber-roster-user-xa ((,c :foreground ,magenta :italic t)))
-    `(jabber-roster-user-dnd ((,c :foreground ,red :weight bold)))
+    `(jabber-roster-user-dnd ((,c :foreground ,red :bold t)))
     `(jabber-roster-user-chatty ((,c :foreground ,cyan-intense)))
     `(jabber-roster-user-error ((,c :inherit error)))
-    `(jabber-roster-user-offline ((,c :foreground ,fg-dim :slant italic)))
+    `(jabber-roster-user-offline ((,c :foreground ,fg-dim :italic t)))
     `(jabber-roster-user-online ((,c :foreground ,cyan :weight bold)))
     `(jabber-chat-prompt-foreign ((,c :foreground ,red :weight bold)))
     `(jabber-chat-prompt-system ((,c :foreground ,green)))
@@ -3326,7 +3376,7 @@ FG and BG are the main colors."
     `(org-clock-overlay ((,c :inherit secondary-selection)))
     `(org-code ((,c :inherit modus-themes-prose-code)))
     `(org-column ((,c :inherit default :background ,bg-dim)))
-    `(org-column-title ((,c :inherit (bold default) :underline t :background ,bg-dim)))
+    `(org-column-title ((,c :inherit (modus-themes-fixed-pitch bold default) :underline t :background ,bg-dim)))
     `(org-date ((,c :inherit modus-themes-fixed-pitch :foreground ,date-common)))
     `(org-date-selected ((,c :foreground ,date-common :inverse-video t)))
     ;; NOTE 2024-03-17: Normally we do not want to add this padding
@@ -3706,6 +3756,9 @@ FG and BG are the main colors."
     `(smerge-refined-changed (()))
     `(smerge-refined-removed ((,c :inherit diff-refine-removed)))
     `(smerge-upper ((,c :inherit diff-removed)))
+;;;;; spacious-padding
+    `(spacious-padding-subtle-mode-line-active ((,c :foreground ,accent-0)))
+    `(spacious-padding-subtle-mode-line-inactive ((,c :foreground ,border)))
 ;;;;; speedbar
     `(speedbar-button-face ((,c :inherit button)))
     `(speedbar-directory-face ((,c :inherit bold :foreground ,accent-0)))
@@ -3812,6 +3865,13 @@ FG and BG are the main colors."
     `(term-underline ((,c :underline t)))
 ;;;;; textsec
     `(textsec-suspicious (( )))
+;;;;; tldr
+    `(tldr-code-block (( )))
+    `(tldr-command-argument ((,c :inherit font-lock-string-face)))
+    `(tldr-command-itself ((,c :inherit font-lock-builtin-face)))
+    `(tldr-description ((,c :inherit font-lock-doc-face)))
+    `(tldr-introduction ((,c :inherit font-lock-comment-face)))
+    `(tldr-title ((,c :inherit bold)))
 ;;;;; transient
     `(transient-active-infix ((,c :inherit highlight)))
     `(transient-amaranth ((,c :inherit bold :foreground ,yellow-warmer)))
@@ -3834,7 +3894,9 @@ FG and BG are the main colors."
     `(transient-key ((,c :inherit modus-themes-key-binding)))
     `(transient-key-exit ((,c :inherit modus-themes-key-binding)))
     `(transient-key-noop ((,c :inherit (shadow modus-themes-key-binding))))
+    `(transient-key-recurse ((,c :inherit modus-themes-key-binding)))
     `(transient-key-return ((,c :inherit modus-themes-key-binding)))
+    `(transient-key-stack ((,c :inherit modus-themes-key-binding)))
     `(transient-key-stay ((,c :inherit modus-themes-key-binding)))
     `(transient-mismatched-key ((,c :underline t)))
     `(transient-nonstandard-key ((,c :underline t)))
@@ -3851,6 +3913,39 @@ FG and BG are the main colors."
     `(trashed-mark ((,c :inherit bold)))
     `(trashed-marked ((,c :inherit modus-themes-mark-alt)))
     `(trashed-restored ((,c :inherit modus-themes-mark-sel)))
+;;;;; treemacs
+    `(treemacs-async-loading-face ((,c :foreground ,fg-main)))
+    `(treemacs-directory-face ((,c :foreground ,accent-0)))
+    `(treemacs-directory-collapsed-face ((,c :foreground ,accent-0)))
+    `(treemacs-file-face ((,c :foreground ,fg-main)))
+    `(treemacs-fringe-indicator-face ((,c :foreground ,fg-main)))
+    `(treemacs-git-added-face ((,c :inherit success)))
+    `(treemacs-git-commit-diff-face ((,c :foreground ,err)))
+    `(treemacs-git-conflict-face ((,c :inherit error)))
+    `(treemacs-git-ignored-face ((,c :inherit shadow)))
+    `(treemacs-git-modified-face ((,c :inherit warning)))
+    `(treemacs-git-renamed-face ((,c :inherit italic)))
+    `(treemacs-git-unmodified-face ((,c :foreground ,fg-main)))
+    `(treemacs-git-untracked-face ((,c :inherit success)))
+    `(treemacs-header-button-face ((,c :foreground ,fg-main)))
+    `(treemacs-help-column-face ((,c :inherit modus-themes-bold :foreground ,keyword)))
+    `(treemacs-help-title-face ((,c :foreground ,fg-main)))
+    `(treemacs-hl-line-face ((,c :background ,bg-hl-line :extend t)))
+    `(treemacs-marked-file-face ((,c :inherit modus-themes-mark-alt)))
+    `(treemacs-nerd-icons-face ((,c :foreground ,accent-0)))
+    `(treemacs-on-failure-pulse-face ((,c :foreground ,fg-main)))
+    `(treemacs-on-success-pulse-face ((,c :foreground ,fg-main)))
+    `(treemacs-peek-mode-indicator-face ((,c :foreground ,fg-main)))
+    `(treemacs-remote-face ((,c :foreground ,fg-main)))
+    `(treemacs-root-face ((,c :foreground ,accent-0)))
+    `(treemacs-root-remote-disconnected-face ((,c :inherit warning)))
+    `(treemacs-root-remote-unreadable-face ((,c :inherit warning)))
+    `(treemacs-root-unreadable-face ((,c :inherit error)))
+    `(treemacs-tags-face ((,c :foreground ,fg-main)))
+    `(treemacs-term-node-face ((,c :inherit modus-themes-bold :foreground ,keyword)))
+    `(treemacs-window-background-face ((,c :background ,bg-main)))
+    `(treemacs-nerd-icons-root-face ((,c :foreground ,accent-0)))
+    `(treemacs-nerd-icons-file-face ((,c :foreground ,accent-0)))
 ;;;;; tree-sitter
     `(tree-sitter-hl-face:attribute ((,c :inherit font-lock-variable-name-face)))
     `(tree-sitter-hl-face:constant.builtin ((,c :inherit tree-sitter-hl-face:constant)))
@@ -3930,8 +4025,8 @@ FG and BG are the main colors."
 ;;;;; vertico
     `(vertico-current ((,c :inherit modus-themes-completion-selected)))
 ;;;;; vertico-quick
-    `(vertico-quick1 ((,c :inherit bold :background ,bg-char-0)))
+    `(vertico-quick1 ((,c :inherit (bold modus-themes-search-current))))
-    `(vertico-quick2 ((,c :inherit bold :background ,bg-char-1)))
+    `(vertico-quick2 ((,c :inherit (bold modus-themes-search-current))))
 ;;;;; vimish-fold
     `(vimish-fold-fringe ((,c :foreground ,cyan)))
     `(vimish-fold-mouse-face ((,c :inherit modus-themes-intense-blue)))
@@ -3956,20 +4051,24 @@ FG and BG are the main colors."
     `(vr/match-1 ((,c :inherit modus-themes-search-lazy)))
     `(vr/match-separator-face ((,c :inherit bold :background ,bg-active)))
 ;;;;; vterm
-    ;; NOTE 2023-08-10: `vterm-color-black' and `vterm-color-white'
-    ;; use the "bright" semantic color mappings to make sure they are
-    ;; distinct from `vterm-color-default'.
     `(vterm-color-black ((,c :background ,bg-term-black :foreground ,fg-term-black)))
-    `(vterm-color-blue ((,c :background ,bg-term-blue :foreground ,fg-term-blue)))
+    `(vterm-color-bright-black ((,c :background ,bg-term-black-bright :foreground ,fg-term-black-bright)))
-    `(vterm-color-cyan ((,c :background ,bg-term-cyan :foreground ,fg-term-cyan)))
-    `(vterm-color-default ((,c :background ,bg-main :foreground ,fg-main)))
-    `(vterm-color-green ((,c :background ,bg-term-green :foreground ,fg-term-green)))
-    `(vterm-color-inverse-video ((,c :background ,bg-main :inverse-video t)))
-    `(vterm-color-magenta ((,c :background ,bg-term-magenta :foreground ,fg-term-magenta)))
     `(vterm-color-red ((,c :background ,bg-term-red :foreground ,fg-term-red)))
-    `(vterm-color-underline ((,c :underline t)))
+    `(vterm-color-bright-red ((,c :background ,bg-term-red-bright :foreground ,fg-term-red-bright)))
-    `(vterm-color-white ((,c :background ,bg-term-white :foreground ,fg-term-white)))
+    `(vterm-color-green ((,c :background ,bg-term-green :foreground ,fg-term-green)))
+    `(vterm-color-bright-green ((,c :background ,bg-term-green-bright :foreground ,fg-term-green-bright)))
     `(vterm-color-yellow ((,c :background ,bg-term-yellow :foreground ,fg-term-yellow)))
+    `(vterm-color-bright-yellow ((,c :background ,bg-term-yellow-bright :foreground ,fg-term-yellow-bright)))
+    `(vterm-color-blue ((,c :background ,bg-term-blue :foreground ,fg-term-blue)))
+    `(vterm-color-bright-blue ((,c :background ,bg-term-blue-bright :foreground ,fg-term-blue-bright)))
+    `(vterm-color-magenta ((,c :background ,bg-term-magenta :foreground ,fg-term-magenta)))
+    `(vterm-color-bright-magenta ((,c :background ,bg-term-magenta-bright :foreground ,fg-term-magenta-bright)))
+    `(vterm-color-cyan ((,c :background ,bg-term-cyan :foreground ,fg-term-cyan)))
+    `(vterm-color-bright-cyan ((,c :background ,bg-term-cyan-bright :foreground ,fg-term-cyan-bright)))
+    `(vterm-color-white ((,c :background ,bg-term-white :foreground ,fg-term-white)))
+    `(vterm-color-bright-white ((,c :background ,bg-term-white-bright :foreground ,fg-term-white-bright)))
+    `(vterm-color-inverse-video ((,c :background ,bg-main :inverse-video t)))
+    `(vterm-color-underline ((,c :underline t)))
 ;;;;; vundo
     `(vundo-default ((,c :inherit shadow)))
     `(vundo-highlight ((,c :inherit (bold vundo-node) :foreground ,red)))

etc/themes/modus-vivendi-deuteranopia-theme.el

@@ -1,6 +1,6 @@
 ;;; modus-vivendi-deuteranopia-theme.el --- Deuteranopia-optimized theme with a black background -*- lexical-binding:t -*-
 
-;; Copyright (C) 2019-2025 Free Software Foundation, Inc.
+;; Copyright (C) 2019-2025  Free Software Foundation, Inc.
 
 ;; Author: Protesilaos Stavrou <info@protesilaos.com>
 ;; Maintainer: Protesilaos Stavrou <info@protesilaos.com>
@@ -167,15 +167,11 @@ standard)."
 
       (bg-completion       "#2f447f")
       (bg-hover            "#45605e")
-      (bg-hover-secondary  "#654a39")
+      (bg-hover-secondary  "#604c30")
       (bg-hl-line          "#2f3849")
       (bg-region           "#5a5a5a")
       (fg-region           "#ffffff")
 
-      (bg-char-0 "#0050af")
-      (bg-char-1 "#7f1f7f")
-      (bg-char-2 "#625a00")
-
       (bg-mode-line-active        "#2a2a6a")
       (fg-mode-line-active        "#f0f0f0")
       (border-mode-line-active    "#8080a7")
@@ -216,13 +212,6 @@ standard)."
 
       (bg-diff-context    "#1a1a1a")
 
-;;; Paren match
-
-      (bg-paren-match        "#2f7f9f")
-      (fg-paren-match        fg-main)
-      (bg-paren-expression   "#453040")
-      (underline-paren-match unspecified)
-
 ;;; Mappings
 
 ;;;; General mappings
@@ -257,17 +246,17 @@ standard)."
 ;;;; Code mappings
 
       (bracket fg-main)
-      (builtin magenta-warmer)
+      (builtin yellow)
       (comment yellow-cooler)
-      (constant blue-cooler)
+      (constant blue-faint)
       (delimiter fg-main)
       (docmarkup magenta-faint)
       (docstring cyan-faint)
-      (fnname magenta)
+      (fnname yellow-warmer)
-      (keyword magenta-cooler)
+      (keyword blue-cooler)
       (number fg-main)
       (operator fg-main)
-      (preprocessor red-cooler)
+      (preprocessor magenta-cooler)
       (punctuation fg-main)
       (rx-backslash blue-cooler)
       (rx-construct yellow-cooler)
@@ -275,12 +264,19 @@ standard)."
       (type cyan-cooler)
       (variable cyan)
 
+;;;; Paren match
+
+      (bg-paren-match        bg-cyan-subtle)
+      (fg-paren-match        fg-main)
+      (underline-paren-match unspecified)
+      (bg-paren-expression   bg-yellow-nuanced)
+
 ;;;; Accent mappings
 
-      (accent-0 blue-cooler)
+      (accent-0 blue-warmer)
       (accent-1 yellow)
       (accent-2 cyan-cooler)
-      (accent-3 magenta-warmer)
+      (accent-3 yellow-cooler)
 
 ;;;; Button mappings
 
@@ -294,7 +290,7 @@ standard)."
       (fg-completion-match-0 blue-cooler)
       (fg-completion-match-1 yellow)
       (fg-completion-match-2 cyan-cooler)
-      (fg-completion-match-3 magenta-warmer)
+      (fg-completion-match-3 yellow-cooler)
       (bg-completion-match-0 unspecified)
       (bg-completion-match-1 unspecified)
       (bg-completion-match-2 unspecified)
@@ -313,7 +309,7 @@ standard)."
       (date-scheduled yellow-cooler)
       (date-scheduled-subtle yellow-faint)
       (date-weekday cyan)
-      (date-weekend magenta)
+      (date-weekend magenta-cooler)
 
 ;;;; Line number mappings
 
@@ -374,7 +370,7 @@ standard)."
       (fg-prose-macro magenta-cooler)
 
       (bg-prose-verbatim unspecified)
-      (fg-prose-verbatim magenta-warmer)
+      (fg-prose-verbatim yellow)
 
       (prose-done blue)
       (prose-todo yellow-warmer)
@@ -385,7 +381,7 @@ standard)."
       (prose-table fg-alt)
       (prose-table-formula yellow-warmer)
 
-      (prose-tag magenta-faint)
+      (prose-tag fg-alt)
 
 ;;;; Rainbow mappings
 
@@ -403,7 +399,7 @@ standard)."
 
       (bg-search-current bg-yellow-intense)
       (bg-search-lazy bg-blue-intense)
-      (bg-search-replace bg-magenta-intense)
+      (bg-search-replace bg-yellow-intense)
 
       (bg-search-rx-group-0 bg-cyan-intense)
       (bg-search-rx-group-1 bg-magenta-intense)
@@ -464,10 +460,10 @@ standard)."
       (fg-heading-1 fg-main)
       (fg-heading-2 yellow-faint)
       (fg-heading-3 blue-faint)
-      (fg-heading-4 magenta)
+      (fg-heading-4 green-faint)
-      (fg-heading-5 green-faint)
+      (fg-heading-5 magenta-cooler)
-      (fg-heading-6 red-faint)
+      (fg-heading-6 yellow-cooler)
-      (fg-heading-7 cyan-faint)
+      (fg-heading-7 cyan)
       (fg-heading-8 fg-dim)
 
       (bg-heading-0 unspecified)

etc/themes/modus-vivendi-theme.el

@@ -1,6 +1,6 @@
 ;;; modus-vivendi-theme.el --- Elegant, highly legible theme with a black background -*- lexical-binding:t -*-
 
-;; Copyright (C) 2019-2025 Free Software Foundation, Inc.
+;; Copyright (C) 2019-2025  Free Software Foundation, Inc.
 
 ;; Author: Protesilaos Stavrou <info@protesilaos.com>
 ;; Maintainer: Protesilaos Stavrou <info@protesilaos.com>
@@ -170,10 +170,6 @@ which corresponds to a minimum contrast in relative luminance of
       (bg-region           "#5a5a5a")
       (fg-region           "#ffffff")
 
-      (bg-char-0 "#0050af")
-      (bg-char-1 "#7f1f7f")
-      (bg-char-2 "#625a00")
-
       (bg-mode-line-active        "#505050")
       (fg-mode-line-active        "#ffffff")
       (border-mode-line-active    "#959595")
@@ -214,13 +210,6 @@ which corresponds to a minimum contrast in relative luminance of
 
       (bg-diff-context    "#1a1a1a")
 
-;;; Paren match
-
-      (bg-paren-match        "#2f7f9f")
-      (fg-paren-match        fg-main)
-      (bg-paren-expression   "#453040")
-      (underline-paren-match unspecified)
-
 ;;; Mappings
 
 ;;;; General mappings
@@ -273,6 +262,13 @@ which corresponds to a minimum contrast in relative luminance of
       (type cyan-cooler)
       (variable cyan)
 
+;;;; Paren match
+
+      (bg-paren-match        bg-cyan-subtle)
+      (fg-paren-match        fg-main)
+      (underline-paren-match unspecified)
+      (bg-paren-expression   bg-yellow-nuanced)
+
 ;;;; Accent mappings
 
       (accent-0 blue-cooler)

etc/themes/modus-vivendi-tinted-theme.el

@@ -1,6 +1,6 @@
 ;;; modus-vivendi-tinted-theme.el --- Elegant, highly legible theme with a night sky background -*- lexical-binding:t -*-
 
-;; Copyright (C) 2019-2025 Free Software Foundation, Inc.
+;; Copyright (C) 2019-2025  Free Software Foundation, Inc.
 
 ;; Author: Protesilaos Stavrou <info@protesilaos.com>
 ;; Maintainer: Protesilaos Stavrou <info@protesilaos.com>
@@ -71,11 +71,11 @@ which corresponds to a minimum contrast in relative luminance of
       (red             "#ff5f59")
       (red-warmer      "#ff6b55")
       (red-cooler      "#ff7f86")
-      (red-faint       "#ff9f80")
+      (red-faint       "#ef8386")
       (red-intense     "#ff5f5f")
       (green           "#44bc44")
-      (green-warmer    "#70b900")
+      (green-warmer    "#75c13e")
-      (green-cooler    "#00c06f")
+      (green-cooler    "#11c777")
       (green-faint     "#88ca9f")
       (green-intense   "#44df44")
       (yellow          "#d0bc00")
@@ -165,15 +165,11 @@ which corresponds to a minimum contrast in relative luminance of
 
       (bg-completion       "#483d8a")
       (bg-hover            "#45605e")
-      (bg-hover-secondary  "#654a39")
+      (bg-hover-secondary  "#64404f")
       (bg-hl-line          "#303a6f")
       (bg-region           "#555a66")
       (fg-region           "#ffffff")
 
-      (bg-char-0 "#0050af")
-      (bg-char-1 "#7f1f7f")
-      (bg-char-2 "#625a00")
-
       (bg-mode-line-active        "#484d67")
       (fg-mode-line-active        "#ffffff")
       (border-mode-line-active    "#979797")
@@ -214,13 +210,6 @@ which corresponds to a minimum contrast in relative luminance of
 
       (bg-diff-context    "#1a1f30")
 
-;;; Paren match
-
-      (bg-paren-match        "#5f789f")
-      (fg-paren-match        fg-main)
-      (bg-paren-expression   "#453040")
-      (underline-paren-match unspecified)
-
 ;;; Mappings
 
 ;;;; General mappings
@@ -233,8 +222,8 @@ which corresponds to a minimum contrast in relative luminance of
       (identifier yellow-faint)
 
       (err red)
-      (warning yellow-warmer)
+      (warning yellow)
-      (info cyan-cooler)
+      (info green-cooler)
 
       (underline-err red-intense)
       (underline-warning yellow)
@@ -255,30 +244,37 @@ which corresponds to a minimum contrast in relative luminance of
 ;;;; Code mappings
 
       (bracket fg-main)
-      (builtin magenta-warmer)
+      (builtin magenta)
       (comment red-faint)
-      (constant blue-cooler)
+      (constant magenta-cooler)
       (delimiter fg-main)
       (docmarkup magenta-faint)
       (docstring cyan-faint)
-      (fnname magenta)
+      (fnname magenta-warmer)
-      (keyword magenta-cooler)
+      (keyword blue-warmer)
       (number fg-main)
       (operator fg-main)
       (preprocessor red-cooler)
       (punctuation fg-main)
-      (rx-backslash magenta)
+      (rx-backslash magenta-warmer)
-      (rx-construct green-cooler)
+      (rx-construct magenta-cooler)
-      (string blue-warmer)
+      (string blue)
-      (type cyan-cooler)
+      (type green-cooler)
-      (variable cyan)
+      (variable cyan-warmer)
+
+;;;; Paren match
+
+      (bg-paren-match        bg-cyan-subtle)
+      (fg-paren-match        fg-main)
+      (underline-paren-match unspecified)
+      (bg-paren-expression   bg-yellow-nuanced)
 
 ;;;; Accent mappings
 
-      (accent-0 blue-cooler)
+      (accent-0 magenta-cooler)
-      (accent-1 magenta-warmer)
+      (accent-1 cyan)
-      (accent-2 cyan-cooler)
+      (accent-2 magenta-warmer)
-      (accent-3 yellow)
+      (accent-3 yellow-warmer)
 
 ;;;; Button mappings
 
@@ -336,14 +332,14 @@ which corresponds to a minimum contrast in relative luminance of
 
 ;;;; Mail mappings
 
-      (mail-cite-0 blue-warmer)
+      (mail-cite-0 blue)
       (mail-cite-1 yellow-cooler)
       (mail-cite-2 cyan-cooler)
       (mail-cite-3 red-cooler)
-      (mail-part blue)
+      (mail-part magenta-cooler)
-      (mail-recipient magenta-cooler)
+      (mail-recipient blue-warmer)
       (mail-subject magenta-warmer)
-      (mail-other magenta-faint)
+      (mail-other magenta)
 
 ;;;; Mark mappings
 
@@ -356,7 +352,7 @@ which corresponds to a minimum contrast in relative luminance of
 
 ;;;; Prompt mappings
 
-      (fg-prompt cyan-cooler)
+      (fg-prompt cyan-warmer)
       (bg-prompt unspecified)
 
 ;;;; Prose mappings

etc/themes/modus-vivendi-tritanopia-theme.el

@@ -1,6 +1,6 @@
 ;;; modus-vivendi-tritanopia-theme.el --- Tritanopia-optimized theme with a black background -*- lexical-binding:t -*-
 
-;; Copyright (C) 2019-2025 Free Software Foundation, Inc.
+;; Copyright (C) 2019-2025  Free Software Foundation, Inc.
 
 ;; Author: Protesilaos Stavrou <info@protesilaos.com>
 ;; Maintainer: Protesilaos Stavrou <info@protesilaos.com>
@@ -63,7 +63,7 @@ standard)."
       (bg-dim           "#1e1e1e")
       (fg-main          "#ffffff")
       (fg-dim           "#989898")
-      (fg-alt           "#c6daff")
+      (fg-alt           "#a0d7f2")
       (bg-active        "#535353")
       (bg-inactive      "#303030")
       (border           "#646464")
@@ -167,15 +167,11 @@ standard)."
 
       (bg-completion       "#004253")
       (bg-hover            "#8e3e3b")
-      (bg-hover-secondary  "#00405f")
+      (bg-hover-secondary  "#204853")
       (bg-hl-line          "#2f3849")
       (bg-region           "#5a5a5a")
       (fg-region           "#ffffff")
 
-      (bg-char-0 "#922a00")
-      (bg-char-1 "#00709f")
-      (bg-char-2 "#5f3faf")
-
       (bg-mode-line-active        "#003c52")
       (fg-mode-line-active        "#f0f0f0")
       (border-mode-line-active    "#5f8fb4")
@@ -216,13 +212,6 @@ standard)."
 
       (bg-diff-context    "#1a1a1a")
 
-;;; Paren match
-
-      (bg-paren-match        "#2f7f9f")
-      (fg-paren-match        fg-main)
-      (bg-paren-expression   "#453040")
-      (underline-paren-match unspecified)
-
 ;;; Mappings
 
 ;;;; General mappings
@@ -275,6 +264,13 @@ standard)."
       (type blue-warmer)
       (variable cyan-cooler)
 
+;;;; Paren match
+
+      (bg-paren-match        bg-cyan-subtle)
+      (fg-paren-match        fg-main)
+      (underline-paren-match unspecified)
+      (bg-paren-expression   bg-red-nuanced)
+
 ;;;; Accent mappings
 
       (accent-0 cyan)
@@ -385,7 +381,7 @@ standard)."
       (prose-table fg-alt)
       (prose-table-formula red-cooler)
 
-      (prose-tag magenta-faint)
+      (prose-tag fg-alt)
 
 ;;;; Rainbow mappings
 

exec/config-mips.m4.in

@@ -18,6 +18,7 @@ dnl  You should have received a copy of the GNU General Public License
 dnl  along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
 
 define(`SYSCALL_open', `ifelse(`@MIPS_N32@',`yes',`6002',`4005')')
+dnl define(`SYSCALL_openat', `ifelse(`@MIPS_N32@',`yes',`6251',`4288')')
 define(`SYSCALL_close', `ifelse(`@MIPS_N32@',`yes',`6003',`4006')')
 define(`SYSCALL_mmap', `ifelse(`@MIPS_N32@',`yes',`6009',`4090')')
 define(`SYSCALL_nanosleep', `ifelse(`@MIPS_N32@',`yes',`6034',`4166')')
@@ -34,9 +35,14 @@ define(`SYSCALL', `ifelse(`@MIPS_N32@',`yes',`	move	$a4, $1
 	sw	$4, 28($sp)')')
 
 define(`RESTORE', `ifelse(`@MIPS_N32@',`yes',`	nop',`	addi	$sp, 32')')
+define(`FP', `ifelse(`@MIPS_N32@',`yes',`$s8',`$fp')')
 
 dnl For mips64.  Some assemblers don't want to assemble `daddi'.
-define(`DADDI2', `ifelse(`@DADDI_BROKEN@',`yes',`	li	$at, $2
+define(`DADDI2', `ifelse(`@DADDI_BROKEN@',`yes',`.set noat
-dadd		 $1, $1, $at',`	daddi	$1, $2')')
+li	$at, $2
-define(`DADDI3', `ifelse(`@DADDI_BROKEN@',`yes',`	li	$at, $3
+dadd	$1, $1, $at
-dadd		 $1, $2, $at',`	daddi	$1, $2, $3')')
+.set at',`	daddi	$1, $2')')
+define(`DADDI3', `ifelse(`@DADDI_BROKEN@',`yes',`.set noat
+li	$at, $3
+dadd	$1, $2, $at
+.set at',`	daddi	$1, $2, $3')')

exec/configure.ac

@@ -213,11 +213,11 @@ AC_CACHE_CHECK([whether MIPS NABI calling convention is used],
   [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 #include <sgidefs.h>
 ]], [[
-#ifndef  __mips64__
+#if !defined __mips64__ && !defined __LP64__
 #if _MIPS_SIM == _ABIO32
 OABI in use.
 #endif /* _MIPS_SIM == _ABIO32 */
-#endif /* !__mips64__ */
+#endif /* !__mips64__ && !defined __LP64__ */
 ]])], [exec_cv_mips_nabi=yes],
   [exec_cv_mips_nabi=no])])
 
@@ -455,12 +455,12 @@ AS_CASE([$host], [x86_64-*linux*],
       .section text
       .global __start
 __start:
-	li	$t0, 0
+	li	\$t0, 0
-	li	$t1, 0
+	li	\$t1, 0
-	daddi	$t0, $t1, 1
+	daddi	\$t0, \$t1, 1
-	daddi	$t0, $t1, -1
+	daddi	\$t0, \$t1, -1
-	daddi	$t0, -1
+	daddi	\$t0, -1
-	daddi	$t0, 1
+	daddi	\$t0, 1
 
 _ACEOF
       $AS $ASFLAGS conftest.s -o conftest.$OBJEXT \
@@ -470,7 +470,8 @@ _ACEOF
    AS_IF([test "x$exec_cv_as_daddi" != "xyes"],
      [DADDI_BROKEN=yes])
    exec_CHECK_LINUX_CLONE3
-   exec_CHECK_MIPS_NABI
+   AC_DEFINE([MIPS_NABI], [1],
+    [Define to 1 if MIPS NABI calling convention is being used.])
    LOADERFLAGS="$LOADERFLAGS $LDPREFIX-Ttext=0x3e00000000"
    is_mips=yes
    exec_loader=loader-mips64el.s], [*],

exec/exec.c

@@ -231,10 +231,10 @@ struct exec_jump_command
   /* The value of AT_BASE inside the aux vector.  */
   USER_WORD at_base;
 
-#if defined __mips__ && !defined MIPS_NABI
+#if defined __mips__ && !defined __LP64__
-  /* The FPU mode to apply.  */
+  /* The FPU mode to apply.  Not used when !MIPS_NABI.  */
   USER_WORD fpu_mode;
-#endif /* defined __mips__ && !defined MIPS_NABI */
+#endif /* defined __mips__ && !defined __LP64__ */
 };
 
 
@@ -831,7 +831,7 @@ insert_args (struct exec_tracee *tracee, USER_REGS_STRUCT *regs,
   assert (new3 == new + effective_size);
 
   /* And that it is properly aligned.  */
-  assert (!(new3 & (sizeof new3 - 2)));
+  assert (!(new3 & (sizeof new3 - 1)));
 
   /* Now modify the system call argument to point to new +
      text_size.  */
@@ -916,7 +916,9 @@ exec_0 (char *name, struct exec_tracee *tracee,
   program_header program;
   USER_WORD entry, program_entry, offset;
   USER_WORD header_offset;
+  USER_WORD name_len, aligned_len;
   struct exec_jump_command jump;
+  /* This also encompasses !__LP64__.  */
 #if defined __mips__ && !defined MIPS_NABI
   int fpu_mode;
 #endif /* defined __mips__ && !defined MIPS_NABI */
@@ -1129,7 +1131,9 @@ exec_0 (char *name, struct exec_tracee *tracee,
     fpu_mode = FP_FRE;
 
   jump.fpu_mode = fpu_mode;
-#endif /* defined __mips__ && !defined MIPS_NABI */
+#elif defined __mips__ && !defined __LP64__
+  jump.fpu_mode = 0;
+#endif /* defined __mips__ && defined MIPS_NABI && !defined __LP64__ */
 
   /* The offset used for at_phdr should be that of the first
      mapping.  */
@@ -1146,6 +1150,23 @@ exec_0 (char *name, struct exec_tracee *tracee,
 	  sizeof jump);
   loader_area_used += sizeof jump;
 
+  /* Copy the length of NAME and NAME itself to the loader area.  */
+  name_len = strlen (name);
+  aligned_len = ((name_len + 1 + sizeof name_len - 1)
+		 & -sizeof name_len);
+  if (sizeof loader_area - loader_area_used
+      < aligned_len + sizeof name_len)
+    goto fail1;
+  memcpy (loader_area + loader_area_used, &name_len, sizeof name_len);
+  loader_area_used += sizeof name_len;
+  memcpy (loader_area + loader_area_used, name, name_len + 1);
+  loader_area_used += name_len + 1;
+
+  /* Properly align the loader area.  */
+  offset = aligned_len - (name_len + 1);
+  while (offset--)
+    loader_area[loader_area_used++] = '\0';
+
   /* Close the file descriptor and return the number of bytes
      used.  */
 

exec/exec.h

@@ -152,6 +152,10 @@ struct exec_tracee
      completion.  */
   USER_WORD sp;
 
+  /* ID of the system call that is pending completion.  This value is
+     not available as the call number is overwritten on success.  */
+  USER_WORD callno;
+
   /* Name of the executable being run.  */
   char *exec_file;
 

exec/loader-aarch64.s

@@ -22,68 +22,68 @@
 	.section .text
 	.global _start
 _start:
-	//mov	x8, 101			// SYS_nanosleep
+	// mov	x8, 101			// SYS_nanosleep
-	//adr	x0, timespec		// req
+	// adr	x0, timespec		// req
-	//mov	x1, #0			// rem
+	// mov	x1, #0			// rem
-	//svc	#0			// syscall
+	// svc	#0			// syscall
 	mov	x20, sp			// x20 = sp
 	ldr	x10, [x20]		// x10 = original SP
 	add	x20, x20, #16		// x20 = start of load area
 	mov	x28, #-1		// x28 = secondary fd
-.next_action:
+next_action:
 	ldr	x11, [x20]		// action number
 	and	x12, x11, #-17		// actual action number
-	cbz	x12, .open_file		// open file?
+	cbz	x12, open_file		// open file?
 	cmp	x12, #3			// jump?
-	beq	.rest_of_exec
+	beq	rest_of_exec
 	cmp	x12, #4			// anonymous mmap?
-	beq	.do_mmap_anon
+	beq	do_mmap_anon
-.do_mmap:
+do_mmap:
 	ldr	x0, [x20, 8]		// vm_address
 	ldr	x1, [x20, 32]		// length
 	ldr	x2, [x20, 24]		// protection
 	ldr	x3, [x20, 40]		// flags
 	tst	x11, #16		// primary fd?
 	mov	x4, x29			// primary fd
-	beq	.do_mmap_1
+	beq	do_mmap_1
 	mov	x4, x28			// secondary fd
-.do_mmap_1:
+do_mmap_1:
 	mov	x8, #222		// SYS_mmap
 	ldr	x5, [x20, 16]		// file_offset
 	svc	#0			// syscall
 	ldr	x9, [x20, 8]		// length
 	cmp	x0, x9			// mmap result
-	bne	.perror			// print error
+	bne	perror			// print error
 	ldr	x3, [x20, 48]		// clear
 	add	x1, x1, x0		// x1 = vm_address + end
 	sub	x3, x1, x3		// x3 = x1 - clear
 	mov	x0, #0			// x0 = 0
-.fill64:
+fill64:
 	sub	x2, x1, x3		// x2 = x1 - x3
 	cmp	x2, #63			// x2 >= 64?
-	ble	.fillb			// start filling bytes
+	ble	fillb			// start filling bytes
 	stp	x0, x0, [x3]		// x3[0] = 0, x3[1] = 0
 	stp	x0, x0, [x3, 16]	// x3[2] = 0, x3[3] = 0
 	stp	x0, x0, [x3, 32]	// x3[4] = 0, x3[5] = 0
 	stp	x0, x0, [x3, 48]	// x3[6] = 0, x3[7] = 0
 	add	x3, x3, #64		// x3 += 8
-	b	.fill64
+	b	fill64
-.fillb:
+fillb:
 	cmp	x1, x3			// x1 == x3?
-	beq	.continue		// done
+	beq	continue		// done
 	strb	w0, [x3], #1		// ((char *) x3)++ = 0
-	b	.fillb
+	b	fillb
-.continue:
+continue:
 	add	x20, x20, #56		// next action
-	b	.next_action
+	b	next_action
-.do_mmap_anon:
+do_mmap_anon:
 	ldr	x0, [x20, 8]		// vm_address
 	ldr	x1, [x20, 32]		// length
 	ldr	x2, [x20, 24]		// protection
 	ldr	x3, [x20, 40]		// flags
 	mov	x4, #-1			// fd
-	b	.do_mmap_1
+	b	do_mmap_1
-.open_file:
+open_file:
 	mov	x8, #56			// SYS_openat
 	mov	x0, #-100		// AT_FDCWD
 	add	x1, x20, #8		// file name
@@ -91,19 +91,19 @@ _start:
 	mov	x3, #0			// mode
 	svc	#0			// syscall
 	cmp	x0, #-1			// rc < 0?
-	ble	.perror
+	ble	perror
 	mov	x19, x1			// x19 == x1
-.nextc:
+nextc:
 	ldrb	w2, [x1], #1		// b = *x1++
 	cmp	w2, #47			// dir separator?
-	bne	.nextc1			// not dir separator
+	bne	nextc1			// not dir separator
 	mov	x19, x1			// x19 = char past separator
-.nextc1:
+nextc1:
-	cbnz	w2, .nextc		// b?
+	cbnz	w2, nextc		// b?
 	add	x1, x1, #7		// round up x1
 	and	x20, x1, #-8		// mask for round, set x20
 	tst	x11, #16		// primary fd?
-	bne	.secondary		// secondary fd
+	bne	secondary		// secondary fd
 	mov	x29, x0			// primary fd
 	mov	x8, #167		// SYS_prctl
 	mov	x0, #15			// PR_SET_NAME
@@ -113,75 +113,117 @@ _start:
 	mov	x4, #0			// arg4
 	mov	x5, #0			// arg5
 	svc	#0			// syscall
-	b	.next_action		// next action
+	b	next_action		// next action
-.secondary:
+secondary:
 	mov	x28, x0			// secondary fd
-	b	.next_action		// next action.
+	b	next_action		// next action.
-.perror:
+perror:
 	mov	x8, #93			// SYS_exit
 	mvn	x0, x0			// x1 = ~x0
 	add	x0, x0, 1		// x1 += 1
 	svc	#0			// exit
-.rest_of_exec:
+rest_of_exec:
 	mov	x7, x20			// x7 = x20
-	mov	x20, x10		// x20 = x10
+	mov	x8, x10			// x8 = x10
-	ldr	x9, [x20]		// argc
+	ldr	x9, [x8], #16		// (void *) x8 += 2
-	add	x9, x9, #2		// x9 += 2
 	lsl	x9, x9, #3		// argc * 8
-	add	x20, x20, x9		// now past argv
+	add	x8, x8, x9		// now past argv
-.skipenv:
+skip_environ:
-	ldr	x9, [x20], #8		// x9 = *envp++
+	ldr	x9, [x8], #8		// x9 = *envp++
-	cbnz	x9, .skipenv		// x9?
+	cbnz	x9, skip_environ	// x9?
-.one_auxv:
+	// Skip the auxiliary vector.
-	ldr	x9, [x20], #16		// x9 = *sp, sp += 2
+1:	ldp	x11, x12, [x8], #16	// a_type, a_un.a_val
-	cbz	x9, .cleanup		// !x9?
+	cbnz	x11, 1b			// a_type != NULL
-	cmp	x9, #3			// is AT_PHDR?
+	// Prepare sufficient space at x20 for the file name string.
-	beq	.replace_phdr		// replace
+	// Load the aforesaid string, and its length.
-	cmp	x9, #4			// is AT_PHENT?
+	ldr	x6, [x7, 56]		// string length
-	beq	.replace_phent		// replace
+	add	x6, x6, 1
-	cmp	x9, #5			// is AT_PHNUM?
+	add	x5, x7, 64		// string pointer
-	beq	.replace_phnum		// replace
+	sub	x4, x10, x8		// number of elements to copy
-	cmp	x9, #9			// is AT_ENTRY?
+	sub	x7, x8, x6		// AT_EXECFN location
-	beq	.replace_entry		// replace
+	and	x7, x7, -8		// align value
-	cmp	x9, #7			// is AT_BASE?
+	add	x4, x7, x4		// destination argc
-	beq	.replace_base		// replace
+	and	x4, x4, -16		// align destination argc
-	b	.one_auxv		// next auxv
+	// Load values that must be preserved into registers x14-x19.
-.replace_phdr:
+	// x14 = cmd->entry
-	ldr	x9, [x7, 40]		// at_phdr
+	// x15 = cmd->at_entry
-	str	x9, [x20, -8]		// store value
+	// x16 = cmd->at_phent
-	b	.one_auxv
+	// x17 = cmd->at_phnum
-.replace_phent:
+	// x18 = cmd->at_phdr
-	ldr	x9, [x7, 24]		// at_phent
+	// x19 = cmd->at_base
-	str	x9, [x20, -8]		// store value
+	ldp	x14, x15, [x20, 8]
-	b	.one_auxv
+	ldp	x16, x17, [x20, 24]
-.replace_phnum:
+	ldp	x18, x19, [x20, 40]
-	ldr	x9, [x7, 32]		// at_phnum
+	// Move the string to a safe location, if necessary.
-	str	x9, [x20, -8]		// store value
+	sub	x3, x4, x5		// distance from dest to string
-	b	.one_auxv
+	cmp	x3, x6			// distance > length
-.replace_entry:
+	bge	copy_env_and_args 	// not necessary
-	ldr	x9, [x7, 16]		// at_entry
+	mov	x2, x5			// src
-	str	x9, [x20, -8]		// store value
+	sub	x5, x4, x6		// backup string
-	b	.one_auxv
+	mov	x1, x5			// dst
-.replace_base:
+	add	x9, x2, x6		// src end
-	ldr	x9, [x7, 48]		// at_base
+	cmp	x2, x9
-	str	x9, [x20, -8]		// store value
+	bcs	copy_env_and_args
-	b	.one_auxv
+1:	ldrb	w3, [x2], #1
-.cleanup:
+	strb	w3, [x1], #1
-	cmp	x28, #-1		// is secondary fd set?
+	cmp	x2, x9
-	bne	.cleanup1		// not set
+	blo	1b
+copy_env_and_args:
+	// Copy argc and the environment array.
+	mov	x8, x10
+	mov	x10, x4
+1:	ldr	x9, [x8], #8		//  envp
+	str	x9, [x4], #8
+	cbnz	x9, 1b
+1:	ldr	x9, [x8], #8		// environ
+	str	x9, [x4], #8
+	cbnz	x9, 1b
+copy_auxv:
+	ldp	x11, x12, [x8], #16	// a_type, a_un.a_val
+	stp	x11, x12, [x4], #16	// write value
+	cbz	x11, cleanup		// AT_NULL
+	cmp	x11, #3			// AT_PHDR
+	csel	x12, x18, x12, eq
+	cmp	x11, #4			// AT_PHENT
+	csel	x12, x16, x12, eq
+	cmp	x11, #5			// AT_PHNUM
+	csel	x12, x17, x12, eq
+	cmp	x11, #9			// AT_ENTRY
+	csel	x12, x15, x12, eq
+	cmp	x11, #7			// AT_BASE
+	csel	x12, x19, x12, eq
+	cmp	x11, #31		// AT_EXECFN
+	csel	x12, x7, x12, eq
+	str	x12, [x4, -8]		// replace value
+	b	copy_auxv
+cleanup:
+	// Copy the filename.
+	add	x9, x5, x6		// end
+	cmp	x5, x9
+	bcs	2f
+1:	ldrb	w3, [x5], #1
+	strb	w3, [x7], #1
+	cmp	x5, x9
+	blo	1b
+	// Close file descriptors.
+2:	cmp	x28, #-1		// is secondary fd set?
+	beq	cleanup1		// not set
 	mov	x8, #57			// SYS_close
 	mov	x0, x28			// secondary fd
 	svc	#0			// syscall
-.cleanup1:
+cleanup1:
 	mov	x8, #57			// SYS_close
 	mov	x0, x29			// primary fd
 	svc	#0			// syscall
-.enter:
+enter:
 	mov	sp, x10			// restore original SP
 	mov	x0, #0			// clear rtld_fini
-	ldr	x1, [x7, 8]		// branch to code
+	br	x14
-	br	x1
 
-timespec:
+// timespec:
-	.quad 10
+// 	.quad 10
-	.quad 10
+// 	.quad 10
+
+// Local Variables:
+// asm-comment-char: ?/
+// End:

exec/loader-armeabi.s

@@ -18,23 +18,23 @@
 	.section .text
 	.global _start
 _start:
-	@mov	r7, #162		@ SYS_nanosleep
+	@@ mov	r7, #162		@ SYS_nanosleep
-	@adr	r0, timespec		@ req
+	@@ adr	r0, timespec		@ req
-	@mov	r1, #0			@ rem
+	@@ mov	r1, #0			@ rem
-	@swi	#0			@ syscall
+	@@ swi	#0			@ syscall
 	mov	r8, sp			@ r8 = sp
 	ldr	r9, [r8], #8		@ r9 = original sp, r8 += 8
 	mov	r14, #-1		@ r14 = secondary fd
-.next_action:
+next_action:
 	ldr	r11, [r8]		@ r11 = action number
 	and	r12, r11, #-17		@ actual action number
 	cmp	r12, #0			@ open file?
-	beq	.open_file		@ open file.
+	beq	open_file		@ open file.
 	cmp	r12, #3			@ jump?
-	beq	.rest_of_exec		@ jump to code.
+	beq	rest_of_exec		@ jump to code.
 	cmp	r12, #4			@ anonymous mmap?
-	beq	.do_mmap_anon		@ anonymous mmap.
+	beq	do_mmap_anon		@ anonymous mmap.
-.do_mmap:
+do_mmap:
 	add	r6, r8, #4		@ r6 = r8 + 4
 	ldm	r6!, {r0, r5}		@ vm_address, file_offset
 	ldm	r6!, {r1, r2}		@ protection, length
@@ -45,28 +45,28 @@ _start:
 	ldm	r6!, {r3, r12}		@ flags, clear
 	tst	r11, #16		@ primary fd?
 	mov	r4, r10			@ primary fd
-	beq	.do_mmap_1
+	beq	do_mmap_1
 	mov	r4, r14			@ secondary fd
-.do_mmap_1:
+do_mmap_1:
 	mov	r7, #192		@ SYS_mmap2
 	swi	#0			@ syscall
 	ldr	r2, [r8, #4]		@ vm_address
 	cmp	r2, r0			@ rc == vm_address?
-	bne	.perror
+	bne	perror
 	add	r0, r1, r2		@ r0 = length + vm_address
 	sub	r3, r0, r12		@ r3 = r0 - clear
 	mov	r1, #0			@ r1 = 0
-.align:
+align:
 	cmp	r0, r3			@ r0 == r3?
-	beq	.continue		@ continue
+	beq	continue		@ continue
 	tst	r3, #3			@ r3 & 3?
-	bne	.fill32			@ fill aligned
+	bne	fill32			@ fill aligned
 	strb	r1, [r3], #1		@ fill byte
-	b	.align			@ align again
+	b	align			@ align again
-.fill32:
+fill32:
 	sub	r2, r0, r3		@ r2 = r0 - r3
 	cmp	r2, #31			@ r2 >= 32?
-	ble	.fillb			@ start filling bytes
+	ble	fillb			@ start filling bytes
 	str	r1, [r3], #4		@ *r3++ = 0
 	str	r1, [r3], #4		@ *r3++ = 0
 	str	r1, [r3], #4		@ *r3++ = 0
@@ -75,16 +75,16 @@ _start:
 	str	r1, [r3], #4		@ *r3++ = 0
 	str	r1, [r3], #4		@ *r3++ = 0
 	str	r1, [r3], #4		@ *r3++ = 0
-	b	.fill32
+	b	fill32
-.fillb:
+fillb:
 	cmp	r0, r3			@ r0 == r3
-	beq	.continue		@ done
+	beq	continue		@ done
 	strb	r1, [r3], #1		@ ((char *) r3)++ = 0
-	b	.fillb
+	b	fillb
-.continue:
+continue:
 	add	r8, r8, #28		@ next action
-	b	.next_action
+	b	next_action
-.do_mmap_anon:
+do_mmap_anon:
 	add	r6, r8, #4		@ r6 = r8 + 4
 	ldm	r6!, {r0, r5}		@ vm_address, file_offset
 	ldm	r6!, {r1, r2}		@ protection, length
@@ -94,29 +94,29 @@ _start:
 	mov	r2, r3			@ swap
 	ldm	r6!, {r3, r12}		@ flags, clear
 	mov	r4, #-1			@ fd
-	b	.do_mmap_1
+	b	do_mmap_1
-.open_file:
+open_file:
 	mov	r7, #5			@ SYS_open
 	add	r0, r8, #4		@ file name
 	mov	r1, #0			@ O_RDONLY
 	mov	r2, #0			@ mode
 	swi	#0			@ syscall
 	cmp	r0, #-1			@ r0 <= -1?
-	ble	.perror
+	ble	perror
 	add	r8, r8, #4		@ r8 = start of string
 	mov	r1, r8			@ r1 = r8
-.nextc:
+nextc:
 	ldrb	r2, [r8], #1		@ b = *r0++
 	cmp	r2, #47			@ dir separator?
-	bne	.nextc1			@ not dir separator
+	bne	nextc1			@ not dir separator
 	mov	r1, r8			@ r1 = char past separator
-.nextc1:
+nextc1:
 	cmp	r2, #0			@ b?
-	bne	.nextc			@ next character
+	bne	nextc			@ next character
 	add	r8, r8, #3		@ round up r8
 	and	r8, r8, #-4		@ mask for round, set r8
 	tst	r11, #16		@ primary fd?
-	bne	.secondary		@ secondary fd
+	bne	secondary		@ secondary fd
 	mov	r10, r0			@ primary fd
 	mov	r7, #172		@ SYS_prctl
 	mov	r0, #15			@ PR_SET_NAME, r1 = name
@@ -125,79 +125,139 @@ _start:
 	mov	r4, #0			@ arg4
 	mov	r5, #0			@ arg5
 	swi	#0			@ syscall
-	b	.next_action		@ next action
+	b	next_action		@ next action
-.secondary:
+secondary:
 	mov	r14, r0			@ secondary fd
-	b	.next_action		@ next action
+	b	next_action		@ next action
-.perror:
+perror:
 	mov	r7, #1			@ SYS_exit
 	mvn	r0, r0			@ r0 = ~r0
 	add	r0, r0, #1		@ r0 += 1
 	swi	#0
-.rest_of_exec:
+rest_of_exec:				@ r8 points to seven ints + string
 	mov	r7, r9			@ r7 = original SP
-	ldr	r6, [r7]		@ argc
+	ldr	r6, [r7], #8		@ argc & terminator
-	add	r6, r6, #2		@ argc + 2
 	lsl	r6, r6, #2		@ argc *= 4
 	add	r7, r7, r6		@ now past argv
-.skipenv:
+	ldr	r6, [r8, #28]		@ length of string
-	ldr	r6, [r7], #4		@ r6 = *r7++
+	add	r6, r6, #1
-	cmp	r6, #0			@ r6?
+skip_environ:
-	bne	.skipenv		@ r6?
+1:	ldr	r1, [r7], #4		@ r1 = *r7++
-.one_auxv:
+	tst	r1, r1			@ r1
-	ldr	r6, [r7], #8		@ r6 = *r7, r7 += 2
+	bne	1b			@ r1
-	cmp	r6, #0			@ !r6?
+1:	ldm	r7!, {r0, r1}		@ a_type, a_un.a_val
-	beq	.cleanup		@ r6?
+	tst	r0, r0
-	cmp	r6, #3			@ is AT_PHDR?
+	bne	1b			@ a_type -> 1b
-	beq	.replace_phdr		@ replace
+	@@ Establish the number of bytes in the argument, environment,
-	cmp	r6, #4			@ is AT_PHENT?
+	@@ and auxiliary vectors to be moved.
-	beq	.replace_phent		@ replace
+	sub	r5, r7, r9		@ r5 = bytes in vectors
-	cmp	r6, #5			@ is AT_PHNUM?
+	@@ Expand r7 with sufficient space for the filename and align
-	beq	.replace_phnum		@ replace
+	@@ it.
-	cmp	r6, #9			@ is AT_ENTRY?
+	sub	r4, r7, r5
-	beq	.replace_entry		@ replace
+	and	r4, r4, #-8		@ r4 = address of AT_EXECFN
-	cmp	r6, #7			@ is AT_BASE?
+	sub	r3, r4, r5		@ r4 - number of bytes in vectors
-	beq	.replace_base		@ replace
+	and	r3, r3, #-16		@ r3 = position of new argc
-	b	.one_auxv		@ next auxv
+	@@ Reserve an area that is guaranteed not to be clobbered into
-.replace_phdr:
+	@@ which to copy the command and file name.
-	ldr	r6, [r8, #20]		@ at_phdr
+	mov	r2, r3
-	str	r6, [r7, #-4]		@ store value
+	cmp	r2, r8
-	b	.one_auxv
+	blo	1f
-.replace_phent:
+	mov	r2, r8
-	ldr	r6, [r8, #12]		@ at_phent
+1:	sub	r2, r2, #24		@ space for data
-	str	r6, [r7, #-4]		@ store value
+	@@ [r2, #0] = entry
-	b	.one_auxv
+	@@ [r2, #4] = at_entry
-.replace_phnum:
+	@@ [r2, #8] = at_phent
-	ldr	r6, [r8, #16]		@ at_phnum
+	@@ [r2, #12] = at_phnum
-	str	r6, [r7, #-4]		@ store value
+	@@ [r2, #16] = at_phdr
-	b	.one_auxv
+	@@ [r2, #20] = at_base
-.replace_entry:
+	add	r7, r8, #4		@ &cmd->entry
-	ldr	r6, [r8, #8]		@ at_entry
+	ldm	r7!, {r0, r1}
-	str	r6, [r7, #-4]		@ store value
+	stm	r2!, {r0, r1}
-	b	.one_auxv
+	ldm	r7!, {r0, r1}
-.replace_base:
+	stm	r2!, {r0, r1}
-	ldr	r6, [r8, #24]		@ at_base
+	ldm	r7!, {r0, r1}
-	str	r6, [r7, #-4]		@ store value
+	stm	r2!, {r0, r1}
-	b	.one_auxv
+	sub	r2, r2, #24
-.cleanup:
+	sub	r0, r2, r6		@ r0 = copy of AT_EXECFN
+	add	r1, r8, #32		@ src
+	add	r5, r1, r6		@ src end
+	cmp	r1, r5
+	bcs	copy_env_and_args
+1:	ldrb	r7, [r1], #1
+	strb	r7, [r0], #1
+	cmp	r1, r5
+	blo	1b
+copy_env_and_args:
+	mov	r5, r3
+1:	ldr	r0, [r9], #4		@ argc and arguments
+	str	r0, [r5], #4		@ *dst = ...
+	tst	r0, r0
+	bne	1b
+1:	ldr	r0, [r9], #4		@ environment string
+	str	r0, [r5], #4		@ *dst = ...
+	tst	r0, r0
+	bne	1b
+copy_auxv:
+	ldm	r9!, {r0, r1}		@ a_type, a_un.a_val
+	tst	r0, r0			@ AT_NULL
+	beq	8f
+	cmp	r0, #3			@ AT_PHDR
+	beq	2f
+	cmp	r0, #4			@ AT_PHENT
+	beq	3f
+	cmp	r0, #5			@ AT_PHNUM
+	beq	4f
+	cmp	r0, #9			@ AT_ENTRY
+	beq	5f
+	cmp	r0, #7			@ AT_BASE
+	beq	6f
+	cmp	r0, #31			@ AT_EXECFN
+	beq	7f
+1:	stm	r5!, {r0, r1}
+	b	copy_auxv
+2:	ldr	r1, [r2, #16]
+	b	1b
+3:	ldr	r1, [r2, #8]
+	b	1b
+4:	ldr	r1, [r2, #12]
+	b	1b
+5:	ldr	r1, [r2, #4]
+	b	1b
+6:	ldr	r1, [r2, #20]
+	b	1b
+7:	mov	r1, r4
+	b	1b
+8:
+	stm	r5!, {r0, r1}
+cleanup:
+	@@ Copy the filename.
+	sub	r0, r2, r6		@ src
+	add	r1, r0, r6		@ src end
+	cmp	r0, r1
+	bcs	2f
+1:	ldrb	r5, [r0], #1
+	strb	r5, [r4], #1		@ *dst++
+	cmp	r0, r1
+	blo	1b
+2:	mov	r9, r3			@ replace original SP
 	cmp	r14, #-1		@ secondary fd set?
-	bne	.cleanup1		@ not set
+	beq	cleanup1		@ not set
 	mov	r7, #6			@ SYS_close
 	mov	r0, r14			@ secondary fd
 	swi	#0			@ syscall
-.cleanup1:
+cleanup1:
 	mov	r7, #6			@ SYS_close
 	mov	r0, r10			@ primary fd
 	swi	#0			@ syscall
-.enter:
+enter:
 	mov	sp, r9			@ restore original SP
 	mov	r0, #0			@ clear rtld_fini
-	ldr	r1, [r8, #4]		@ branch to code
+	ldr	r1, [r2]		@ branch to code
 	bx	r1
 
-timespec:
+@@ timespec:
-	.long 10
+@@ 	.long 10
-	.long 10
+@@ 	.long 10
 
 @ Local Variables:
 @ asm-comment-char: ?@

exec/loader-mips64el.s

@@ -17,32 +17,38 @@
 
 include(`config-mips.m4')
 
+/* These "registers" alias a4-a7 and caution must be exercised not
+   to overwrite them when issuing system calls.  */
+define(`T4', `$a4')
+define(`T5', `$a5')
+define(`T6', `$a6')
+define(`T7', `$a7')
+
 	.set noreorder			# delay slots managed by hand
-	.set noat			# no assembler macros
 	.section .text
 	.global __start
 __start:
-dnl	li	$v0, 5034		# SYS_nanosleep
+	## li	$v0, 5034		# SYS_nanosleep
-dnl	dla	$a0, .timespec		# rqtp
+	## dla	$a0, timespec		# rqtp
-dnl	li	$a1, 0			# rmtp
+	## li	$a1, 0			# rmtp
-dnl	syscall				# syscall
+	## syscall			# syscall
-	ld	$s2, ($sp)		# original stack pointer
+	ld	$s6, ($sp)		# original stack pointer
 	DADDI3(	$s0, $sp, 16)		# start of load area
 	DADDI2(	$sp, -16)		# primary fd, secondary fd
 	li	$t0, -1			# secondary fd
 	sd	$t0, 8($sp)		# initialize secondary fd
-.next_action:
+next_action:
 	ld	$s1, ($s0)		# action number
 	andi	$t0, $s1, 15		# t0 = action number & 15
-	beqz	$t0, .open_file		# open file?
+	beqz	$t0, open_file		# open file?
 	nop				# delay slot
 	DADDI2(	$t0, -3)		# t0 -= 3
-	beqz	$t0, .rest_of_exec	# jump to code
+	beqz	$t0, rest_of_exec	# jump to code
 	nop				# delay slot
 	li	$t1, 1
-	beq	$t0, $t1, .do_mmap_anon	# anonymous mmap?
+	beq	$t0, $t1, do_mmap_anon	# anonymous mmap?
 	nop				# delay slot
-.do_mmap:
+do_mmap:
 	ld	$t0, 8($s0)		# vm address
 	ld	$t1, 16($s0)		# file_offset
 	ld	$t2, 24($s0)		# protection
@@ -50,10 +56,10 @@ dnl	syscall				# syscall
 	ld	$v0, 40($s0)		# flags
 	ld	$v1, ($sp)		# primary fd
 	andi	$s3, $s1, 16		# s1 & 16?
-	beqz	$s3, .do_mmap_1		# secondary fd?
+	beqz	$s3, do_mmap_1		# secondary fd?
 	nop				# delay slot
 	ld	$v1, 8($sp)		# secondary fd
-.do_mmap_1:
+do_mmap_1:
 	move	$a0, $t0		# syscall arg
 	move	$a1, $t3		# syscall arg
 	move	$a2, $t2		# syscall arg
@@ -62,21 +68,21 @@ dnl	syscall				# syscall
 	move	$a5, $t1		# syscall arg
 	li	$v0, 5009		# SYS_mmap
 	syscall				# syscall
-	bne	$a3, $zero, .perror	# perror?
+	bne	$a3, $zero, perror	# perror?
 	nop				# delay slot
 	ld	$t1, 48($s0)		# clear
 	dadd	$t0, $a0, $a1		# t0 = end of mapping
 	dsub	$t1, $t0, $t1		# t1 = t0 - clear
-.align:
+align:
-	beq	$t0, $t1, .continue	# already finished
+	beq	$t0, $t1, continue	# already finished
 	nop				# delay slot
 	andi	$t2, $t1, 7		# t1 & 7?
-	bnez	$t2, .filld		# start filling longs
+	bnez	$t2, filld		# start filling longs
 	nop				# delay slot
-.filld:
+filld:
 	dsub	$t2, $t0, $t1		# t2 = t0 - t1
 	sltiu	$t2, $t2, 64		# t2 < 64?
-	bne	$t2, $zero, .fillb	# fill bytes
+	bne	$t2, $zero, fillb	# fill bytes
 	nop				# delay slot
 	sd	$zero, ($t1)		# zero doubleword
 	DADDI2(	$t1, 8)			# next doubleword
@@ -94,140 +100,258 @@ dnl	syscall				# syscall
 	DADDI2(	$t1, 8)			# next doubleword
 	sd	$zero, ($t1)		# zero doubleword
 	DADDI2(	$t1, 8)			# next doubleword
-	j	.filld			# fill either doubleword or byte
+	j	filld			# fill either doubleword or byte
 	nop				# delay slot
-.fillb:
+fillb:
-	beq	$t0, $t1, .continue	# already finished?
+	beq	$t0, $t1, continue	# already finished?
 	nop				# delay slot
 	sb	$zero, ($t1)		# clear byte
 	DADDI2(	$t1, 1)			# t1++
-.continue:
+continue:
 	DADDI2(	$s0, 56)		# s0 = next action
-	j	.next_action		# next action
+	j	next_action		# next action
 	nop				# delay slot
-.do_mmap_anon:
+do_mmap_anon:
 	ld	$t0, 8($s0)		# vm address
 	ld	$t1, 16($s0)		# file_offset
 	ld	$t2, 24($s0)		# protection
 	ld	$t3, 32($s0)		# length
 	ld	$v0, 40($s0)		# flags
-	li	$v1, -1			# fd
+	dli	$v1, -1			# fd
-	j	.do_mmap_1		# do mmap
+	j	do_mmap_1		# do mmap
 	nop				# branch delay slot
-.open_file:
+open_file:
-	li	$v0, 5002		# SYS_open
+	dli	$v0, 5002		# SYS_open
 	DADDI3(	$a0, $s0, 8)		# start of name
 	move	$a1, $zero		# flags = O_RDONLY
 	move	$a2, $zero		# mode = 0
 	syscall				# syscall
-	bne	$a3, $zero, .perror	# perror
+	bne	$a3, $zero, perror	# perror
 	nop				# delay slot
 	DADDI2(	$s0, 8)			# start of string
 	move	$t3, $s0		# t3 = s0
-.nextc:
+nextc:
 	lb	$t0, ($s0)		# load byte
 	DADDI2(	$s0, 1)			# s0++
-	li	$t1, 47			# directory separator `/'
+	dli	$t1, 47			# directory separator `/'
-	bne	$t0, $t1, .nextc1	# is separator char?
+	bne	$t0, $t1, nextc1	# is separator char?
 	nop				# delay slot
 	move	$t3, $s0		# t3 = char past separator
-.nextc1:
+nextc1:
-	bnez	$t0, .nextc		# next character?
+	bnez	$t0, nextc		# next character?
 	nop				# delay slot
 	DADDI2(	$s0, 7)			# adjust for round
-	li	$t2, -8			# t2 = -8
+	dli	$t2, -8			# t2 = -8
 	and	$s0, $s0, $t2		# mask for round
 	andi	$t0, $s1, 16		# t1 = s1 & 16
 	move	$t1, $sp		# address of primary fd
-	beqz	$t0, .primary		# primary fd?
+	beqz	$t0, primary		# primary fd?
 	nop				# delay slot
 	DADDI2(	$t1, 8)			# address of secondary fd
 	sd	$v0, ($t1)		# store fd
-	j	.next_action		# next action
+	j	next_action		# next action
 	nop				# delay slot
-.primary:
+primary:
 	sd	$v0, ($t1)		# store fd
-	li	$v0, 5153		# SYS_prctl
+	dli	$v0, 5153		# SYS_prctl
-	li	$a0, 15			# PR_SET_NAME
+	dli	$a0, 15			# PR_SET_NAME
 	move	$a1, $t3		# char past separator
 	move	$a2, $zero		# a2
 	move	$a3, $zero		# a3
 	move	$a4, $zero		# a4
 	move	$a5, $zero		# a5
 	syscall				# syscall
-	j	.next_action		# next action
+	j	next_action		# next action
 	nop				# delay slot
-.perror:
+perror:
 	move	$a0, $v0		# errno
-	li	$v0, 5058		# SYS_exit
+	dli	$v0, 5058		# SYS_exit
 	syscall				# syscall
-.rest_of_exec:
+rest_of_exec:
-	move	$s1, $s2		# original SP
+	move	$s1, $s6		# original SP
 	ld	$t0, ($s1)		# argc
 	dsll	$t0, $t0, 3		# argc *= 8
 	DADDI2(	$t0, 16)		# argc += 16
 	dadd	$s1, $s1, $t0		# s1 = start of envp
-.skipenv:
+skip_environ:
-	ld	$t0, ($s1)		# t0 = *s1
+	/* Locate the auxiliary vector.  */
-	DADDI2(	$s1, 8)			# s1++
+	li	$t8, 8 			# DADDI2 isn't appropriate in delay slots.
-	bne	$t0, $zero, .skipenv	# skip again
+1:	ld	$t0, ($s1)		# t0 = *s1
-	nop				# delay slot
+	bnez	$t0, 1b			# skip environment entry
-	dla	$t3, .auxvtab		# address of auxv table
+	dadd	$s1, $s1, $t8		# s1++
-.one_auxv:
+	move	$s2, $s1		# s2 = end of environment
-	ld	$t0, ($s1)		# t0 = auxv type
+	li	$t8, 16
-	li	$t1, 10			# t1 = 10
+1:	ld	$t0, ($s1)		# t0 = s1->a_type
-	beqz	$t0, .finish		# is AT_IGNORE?
+	bnez	$t0, 1b			# skip auxiliary vector entry
-	nop				# delay slot
+	dadd	$s1, $s1, $t8		# (Elf64_auxv_t *) s1++
-	sltu	$t1, $t0, $t1		# t1 = t0 < num offsets
+	/* Decide how many bytes must be copied and where to
-	beqz	$t1, .next		# next auxv
+	   save the file name.  Move the stack pointer to a safe
-	nop				# delay slot
+	   position below any data that must be preserved.  */
-	dsll	$t1, $t0, 2		# t1 = t0 * 4
+	ld	$t1, 56($s0)		# length of string
-	dadd	$t1, $t3, $t1		# t1 = .auxvtab + t1
+	DADDI2(	$t1, 1)
-	lw	$t2, ($t1)		# t2 = *t1
+	DADDI3(	$t2, $s0, 64)		# pointer to string
-	beqz	$t2, .next		# skip auxv
+	dsub	$t3, $s1, $s6		# number of bytes in vectors
-	nop				# delay slot
+	dsub	$t0, $s1, $t1		# position of string
-	dadd	$t2, $s0, $t2		# t2 = s0 + t2
+	and	$t0, $t0, -16		# align value
-	ld	$t2, ($t2)		# t2 = *t2
+	dsub	$t3, $t0, $t3		# position of argc
-	sd	$t2, 8($s1)		# set auxv value
+	and	$t3, $t3, -16		# align value
-.next:
+	/* Move the stack pointer and save required information.
-	DADDI2(	$s1, 16)		# next auxv
+	   8($fp)   = secondary/interpreter fd.
-	j	.one_auxv		# next auxv
+	   0($fp)   = primary/executable fd.
-	nop				# delay slot
+	   -8($fp)  = cmd->entry
-.finish:
+	   -16($fp) = cmd->at_entry
-	ld	$t0, 8($sp)		# secondary fd
+	   -24($fp) = cmd->at_phent
+	   -32($fp) = cmd->at_phnum
+	   -40($fp) = cmd->at_phdr
+	   -48($fp) = cmd->at_base
+	$sp = copy of string.  */
+	move	T4, $sp			# current sp
+	dsub	T5, $t3, $sp		# new argc - current sp
+	li	$t8, -16
+	blt	T5, 16, 1f		# more than two slots apart
+	dadd	$sp, $t3, $t8		# $sp = two slots below new argc
+	j	2f			# skip copying fds
+	move	$sp, T4			# retain current sp
+1:	ld	T5, (T4)		# old primary fd
+	ld	T5, ($sp)		# save the same
+	ld	T5, 8(T4)		# old interpreter fd
+	sd	T5, 8($sp)		# save the same
+2:	move	$fp, $sp		# set base pointer
+	DADDI2(	$sp, -48)		# command data
+	ld	T5, 8($s0)		# entry
+	ld	T6, 16($s0)		# at_entry
+	ld	T7, 24($s0)		# at_phent
+	ld	$t8, 32($s0)		# at_phnum
+	sd	T5, -8($fp)		# save entry
+	ld	T5, 40($s0)		# at_phdr
+	sd	T6, -16($fp)		# save at_entry
+	ld	T6, 48($s0)		# at_base
+	sd	T7, -24($fp)		# save at_phent
+	sd	$t8, -32($fp)		# save at_phnum
+	sd	T5, -40($fp)		# save at_phdr
+	sd	T6, -48($fp)		# save at_base
+	dsub	$sp, $sp, $t1		# space for string
+	/* Save the input string.  */
+	dadd	T5, $t2, $t1		# end of source ($t2)
+	move	T6, $sp			# dst
+	move	$s0, $t1		# $s0 = length of string
+	/* src = $t2, dst = T6 */
+	bgeu	$t2, T5, 2f		# there already?
+	nop
+1:	lb	$t1, ($t2)		# $t1 = *$t2
+	DADDI2(	$t2, 1)			# $t2++
+	DADDI2(	T6, 1)			# $t6++
+	bltu	$t2, T5, 1b
+	sb	$t1, -1(T6)		# *(T6 - 1) = $t1
+2:	move	$s3, $sp		# copy of string
+	and	$sp, $sp, -16		# align stack
+copy_env_and_args:
+	/* Copy argc, argv, and the environment array.
+	   T4 = destination, T5 = src, $s2 = src_end  */
+	move	T4, $t3			# destination of argc
+	move	T5, $s6			# original SP
+	bgeu	T5, $s2, 2f		# there already?
+	nop
+1:	ld	$t1, (T5)		# $t1 = *src
+	DADDI2(	T5, 8)			# src++
+	DADDI2(	T4, 8)			# dst++
+	bltu	T5, $s2, 1b		# src < src_end
+	sd	$t1, -8(T4)		# *(dst - 8) = $t1
+copy_auxv:
+	/* T4 = destination, T5 = first auxval.  */
+2:	ld	$t1, (T5)		# a_type
+	ld	$t2, 8(T5)		# a_un.a_val
+	DADDI2(	T4, 16)			# (Elf64_auxv_t *) dst++
+	DADDI2(	T5, 16)			# (Elf64_auxv_t *) src
+	beqz	$t1, 8f			# AT_NULL
+	li	T6, 3
+	beq	$t1, T6, 1f		# AT_PHDR
+	li	T6, 4
+	beq	$t1, T6, 2f		# AT_PHENT
+	li	T6, 5
+	beq	$t1, T6, 3f		# AT_PHNUM
+	li	T6, 9
+	beq	$t1, T6, 4f		# AT_ENTRY
+	li	T6, 7
+	beq	$t1, T6, 5f		# AT_BASE
+	li	T6, 31
+	beq	$t1, T6, 6f		# AT_EXECFN
+	nop
+	b	7f
+	nop
+1:	b	7f
+	ld	$t2, -40($fp)
+2:	b	7f
+	ld	$t2, -24($fp)
+3:	b	7f
+	ld	$t2, -32($fp)
+4:	b	7f
+	ld	$t2, -16($fp)
+5:	b	7f
+	ld	$t2, -48($fp)
+6:	b	7f
+	move	$t2, $t0
+7:	sd	$t1, -16(T4)		# dst->a_type
+	j	copy_auxv
+	sd	$t2, -8(T4)		# dst->a_un.a_val
+	/* Copy the final element.  */
+8:	sd	$t1, -16(T4)		# dst->a_type
+	sd	$t2, -8(T4)		# dst->a_un.a_val
+finish:
+	/* Copy the string to its position in auxv
+	   (src = $s3, dst = $t0).  */
+	dadd	$t1, $s3, $s0		# src end
+	bgeu	$s3, $t1, 2f		# there already?
+	nop
+1:	lb	$t2, ($s3)		# c = *src
+	DADDI2(	$s3, 1)			# src++
+	DADDI2(	$t0, 1)			# dst++
+	bltu	$s3, $t1, 1b
+	sb	$t2, -1($t0)	   	# *(dst - 1) = c
+	/* Save variables.  */
+2:	move	$s6, $t3		# new stack pointer
+	ld	$t0, 8($fp)		# secondary fd
 	li	$t1, -1			# t1 = -1
-	ld	$s1, ($sp)		# s1 = primary fd
+	ld	$s1, ($fp)		# s1 = primary fd
+	beq	$t0, $t2, finish1	# secondary fd set?
 	li	$v0, 5003		# SYS_close
-	beq	$t0, $t2, .finish1	# secondary fd set?
-	nop				# delay slot
 	move	$a0, $t0		# secondary fd
 	syscall				# syscall
 	li	$v0, 5003		# SYS_close
-.finish1:
+finish1:
 	move	$a0, $s1		# primary fd
 	syscall				# syscall
-.jump:
+jump:
 	move	$v0, $zero		# rtld_fini
-	ld	$t0, 8($s0)		# entry
+	ld	$t9, -8($fp)		# entry
-	move	$sp, $s2		# restore stack pointer, delay slot
+	move	$sp, $s6		# restore stack pointer, delay slot
-	jr	$t0			# enter
+        /* Clear at least one page's worth of stack.  glibc on mipsel
+	   copies certain fields from the stack to the `link_map'
+	   structure representing ld.so, which are not subsequently
+	   replaced if otherwise than zero.
+
+	   XXX: report this glibc bug?  */
+	DADDI3(	$v0, $sp, -4096)
+	and	$v0, $v0, -4095
+1:	sd	$zero, ($v0)		# copy 32 byte blocks
+	sd	$zero, 8($v0)
+	sd	$zero, 16($v0)
+	sd	$zero, 24($v0)
+	DADDI2(	$v0, 32)
+	dsub	$t0, $sp, $v0		# remainder
+	bge	$t0, 32, 1b		# test remainder
+	nop				# copy 4 byte blocks
+	beqz	$t0, 2f
+	nop
+1:	DADDI2(	$v0, 4)
+	bltu	$v0, $sp, 1b
+	sw	$zero, -4($v0)
+2:	jr	$t9			# enter
 	nop				# delay slot
 
-.auxvtab:
+## timespec:
-	.long	0			# 0
+## 	.quad	10
-	.long	0			# 1
+## 	.quad	10
-	.long	0			# 2
-	.long	40			# 3 AT_PHDR
-	.long	24			# 4 AT_PHENT
-	.long	32			# 5 AT_PHNUM
-	.long	0			# 6
-	.long	48			# 7 AT_BASE
-	.long	0			# 8
-	.long	16			# 9 AT_ENTRY
-
-.timespec:
-	.quad	10
-	.quad	10
 
 # Local Variables:
 # asm-comment-char: ?#

exec/loader-mipsel.s

@@ -17,32 +17,32 @@
 
 include(`config-mips.m4')
 
-# Make sure not to use t4 through t7, in order to maintain portability
+## Beware: $t0-$t4 alias the syscall (and function, but they are not
-# with N32 ABI systems.
+## material in this context) argument registers on N32 systems, and
+## mustn't be relied upon to hold arguments to `SYSCALL'.
 
 	.set noreorder			# delay slots managed by hand
 	.section .text
 	.global __start
 __start:
-dnl	li	$v0, SYSCALL_nanosleep	# SYS_nanosleep
+	## li	$v0, SYSCALL_nanosleep	# SYS_nanosleep
-dnl	la	$a0, .timespec		# rqtp
+	## la	$a0, timespec		# rqtp
-dnl	li	$a1, 0			# rmtp
+	## li	$a1, 0			# rmtp
-dnl	syscall				# syscall
+	## syscall			# syscall
 	lw	$s6, ($sp)		# original stack pointer
 	addi	$s0, $sp, 8		# start of load area
 	addi	$sp, -8			# primary fd, secondary fd
 	li	$t0, -1			# secondary fd
 	sw	$t0, 4($sp)		# initialize secondary fd
-.next_action:
+next_action:
 	lw	$s2, ($s0)		# action number
-	nop				# delay slot
 	andi	$t0, $s2, 15		# t0 = s2 & 15
-	beqz	$t0, .open_file		# open file?
+	beqz	$t0, open_file		# open file?
 	li	$t1, 3			# t1 = 3, delay slot
-	beq	$t0, $t1, .rest_of_exec	# jump to code
+	beq	$t0, $t1, rest_of_exec	# jump to code
 	li	$t1, 4			# t1 = 4, delay slot
-	beq	$t0, $t1, .do_mmap_anon	# anonymous mmap
+	beq	$t0, $t1, do_mmap_anon	# anonymous mmap
-.do_mmap:
+do_mmap:
 	lw	$a0, 4($s0)		# vm_address, delay slot
 	lw	$v1, 8($s0)		# file_offset
 	lw	$a2, 12($s0)		# protection
@@ -50,33 +50,33 @@ dnl	syscall				# syscall
 	lw	$a3, 20($s0)		# flags
 	lw	$v0, ($sp)		# primary fd
 	andi	$t1, $s2, 16		# t1 = s2 & 16
-	beqz	$t1, .do_mmap_1		# secondary fd?
+	beqz	$t1, do_mmap_1		# secondary fd?
 	nop				# delay slot
 	lw	$v0, 4($sp)		# secondary fd
 	nop				# delay slot
-.do_mmap_1:
+do_mmap_1:
 SYSCALL(`$v0',`$v1',`$zero',`$zero')	# syscall args
 	li	$v0, SYSCALL_mmap	# SYS_mmap
 	syscall				# syscall
-	bne	$a3, $zero, .perror	# perror
+	bnez	$a3, perror		# perror
 RESTORE()				# delay slot, restore sp
 	lw	$s5, 24($s0)		# clear
 	add	$t0, $a0, $a1		# t0 = length + vm_address, delay slot
 	sub	$t1, $t0, $s5		# t1 = t0 - clear
-.align:
+align:
-	beq	$t0, $t1, .continue	# already finished?
+	beq	$t0, $t1, continue	# already finished?
 	nop				# delay slot
 	andi	$t2, $t1, 3		# t1 & 3?
-	bnez	$t2, .fillw		# start filling longs
+	bnez	$t2, fillw		# start filling longs
 	nop				# delay slot
 	sb	$zero, ($t1)		# clear byte
 	addi	$t1, $t1, 1		# t1++
-	j	.align			# continue
+	j	align			# continue
 	nop				# delay slot
-.fillw:
+fillw:
 	sub	$t2, $t0, $t1		# t2 = t0 - t1
 	sltiu	$t2, $t2, 32		# r2 < 32?
-	bne	$t2, $zero, .fillb	# fill bytes
+	bne	$t2, $zero, fillb	# fill bytes
 	nop				# delay slot
 	sw	$zero, ($t1)		# zero word
 	addi	$t1, $t1, 4		# next word
@@ -94,53 +94,52 @@ RESTORE()				# delay slot, restore sp
 	addi	$t1, $t1, 4		# next word
 	sw	$zero, ($t1)		# zero word
 	addi	$t1, $t1, 4		# next word
-	j	.fillw			# fill either word or byte
+	j	fillw			# fill either word or byte
 	nop				# delay slot
-.fillb:
+fillb:
-	beq	$t0, $t1, .continue	# already finished?
+	beq	$t0, $t1, continue	# already finished?
 	nop				# delay slot
 	sb	$zero, ($t1)		# clear byte
 	addi	$t1, $t1, 1		# t1++
-.continue:
+continue:
 	addi	$s0, $s0, 28		# s0 = next action
-	j	.next_action		# next action
+	j	next_action		# next action
 	nop				# delay slot
-.do_mmap_anon:
+do_mmap_anon:
 	lw	$v1, 8($s0)		# file_offset
 	lw	$a2, 12($s0)		# protection
 	lw	$a1, 16($s0)		# length
 	lw	$a3, 20($s0)		# flags
-	li	$t4, -1			# fd
+	j	do_mmap_1		# do mmap
-	j	.do_mmap_1		# do mmap
+	li	$v0, -1			# fd, delay slot
-	nop				# delay slot
+open_file:
-.open_file:
 	li	$v0, SYSCALL_open	# SYS_open
 	addi	$a0, $s0, 4		# start of name
 	move	$a1, $zero		# flags = O_RDONLY
 	move	$a2, $zero		# mode = 0
 	syscall				# syscall
-	bne	$a3, $zero, .perror	# perror
+	bne	$a3, $zero, perror	# perror
 	addi	$s0, $s0, 4		# start of string, delay slot
 	move	$t3, $s0		# t3 = char past separator
-.nextc:
+nextc:
 	lb	$t0, ($s0)		# load byte
 	addi	$s0, $s0, 1		# s0++
 	li	$t1, 47			# directory separator `/'
-	bne	$t0, $t1, .nextc1	# is separator char?
+	bne	$t0, $t1, nextc1	# is separator char?
 	nop				# delay slot
 	move	$t3, $s0		# t3 = char past separator
-.nextc1:
+nextc1:
-	bnez	$t0, .nextc		# next character?
+	bnez	$t0, nextc		# next character?
 	nop				# delay slot
 	addi	$s0, $s0, 3		# adjust for round
 	li	$t2, -4			# t2 = -4
 	and	$s0, $s0, $t2		# mask for round
 	andi	$t0, $s2, 16		# t1 = s2 & 16
-	beqz	$t0, .primary		# primary fd?
+	beqz	$t0, primary		# primary fd?
 	move	$t0, $sp		# address of primary fd, delay slot
 	addi	$t0, $t0, 4		# address of secondary fd
-	j	.next_action		# next action
+	j	next_action		# next action
-.primary:
+primary:
 	sw	$v0, ($t0)		# store fd, delay slot
 	li	$v0, SYSCALL_prctl	# SYS_prctl
 	li	$a0, 15			# PR_SET_NAME
@@ -150,86 +149,208 @@ RESTORE()				# delay slot, restore sp
 SYSCALL(`$a2',`$a2',`$a2',`$a2')	# syscall args
 	syscall				# syscall
 RESTORE()				# restore sp
-	j	.next_action		# next action
+	j	next_action		# next action
 	nop				# delay slot
-.perror:
+perror:
 	move	$a0, $v0		# errno
 	li	$v0, SYSCALL_exit	# SYS_exit
 	syscall				# syscall
-.rest_of_exec:
+rest_of_exec:
 	move	$s1, $s6		# s1 = original SP
 	lw	$t0, ($s1)		# argc
-	nop				# delay slot
 	sll	$t0, $t0, 2		# argc *= 4
 	addi	$t0, $t0, 8		# argc += 8
 	add	$s1, $s1, $t0		# s1 = start of envp
-.skipenv:
+skip_environ:
-	lw	$t0, ($s1)		# t0 = *s1
+	/* Locate the auxiliary vector.  */
+1:	lw	$t0, ($s1)		# t0 = *s1
+	bnez	$t0, 1b			# skip environment entry
 	addi	$s1, $s1, 4		# s1++
-	bne	$t0, $zero, .skipenv	# skip again
+	move	$s2, $s1		# $s2 = end of environment
-	nop				# delay slot
+1:	lw	$t0, ($s1)		# t0 = *s1
-	la	$s2, .auxvtab		# address of auxv table
+	bnez	$t0, 1b			# skip auxiliary vector entry
-.one_auxv:
+	addi	$s1, $s1, 8		# (Elf32_auxv_t *) s1++
-	lw	$t0, ($s1)		# t0 = auxv type
+	/* Decide how many bytes must be copied and where to
-	li	$t1, 10			# t1 = 10, delay slot
+	   save the file name.  Move the stack pointer to a safe
-	beqz	$t0, .finish		# is AT_IGNORE?
+	   position below any data that must be preserved.  */
-	sltu	$t1, $t0, $t1		# t1 = t0 < num offsets, delay slot
+	lw	$t1, 32($s0)		# length of string
-	beq	$t1, $zero, .next	# next auxv
+	addi	$t1, $t1, 1
-	sll	$t1, $t0, 2		# t1 = t0 * 4, delay slot
+	addi	$t2, $s0, 36		# pointer to string
-	add	$t1, $s2, $t1		# t1 = .auxvtab + t1
+	sub	$t3, $s1, $s6		# number of bytes in vectors
-	lw	$t2, ($t1)		# t2 = *t1
+	sub	$t0, $s1, $t1		# position of string
-	nop				# delay slot
+	and	$t0, $t0, -16		# align value
-	beqz	$t2, .next		# skip auxv
+	sub	$t3, $t0, $t3		# position of argc
-	add	$t2, $s0, $t2		# t2 = s0 + t2
+	and	$t3, $t3, -16		# align value
-	lw	$t2, ($t2)		# t2 = *t2
+	/* Move the stack pointer and save required information.
-	nop				# delay slot
+	   4(FP)   = secondary/interpreter fd.
-	sw	$t2, 4($s1)		# set auxv value
+	   0(FP)   = primary/executable fd.
-.next:
+	   -4(FP)  = cmd->entry
-	addi	$s1, $s1, 8		# next auxv
+	   -8(FP)  = cmd->at_entry
-	j	.one_auxv		# next auxv
+	   -12(FP) = cmd->at_phent
-	nop				# delay slot
+	   -16(FP) = cmd->at_phnum
-.finish:
+	   -20(FP) = cmd->at_phdr
-	lw	$t0, 4($sp)		# secondary fd
+	   -24(FP) = cmd->at_base
-	lw	$s1, ($sp)		# primary fd, delay slot, preserved
+	   -28(FP) = cmd->fpu_mode (only significant when N32)
+	   $sp = copy of string.  */
+	move	$t4, $sp		# current sp
+	sub	$t5, $t3, $sp		# new argc - current sp
+	blt	$t5, 8, 1f		# more than two slots apart
+	addi	$sp, $t3, -8		# $sp = two slots below new argc
+	j	2f			# skip copying fds
+	move	$sp, $t4		# retain current sp
+1:	lw	$t5, ($t4)		# old primary fd
+	sw	$t5, ($sp)		# save the same
+	lw	$t5, 4($t4)		# old interpreter fd
+	sw	$t5, 4($sp)		# save the same
+2:	move	FP, $sp			# set base pointer
+	addi	$sp, $sp, -28		# command data
+	lw	$t5, 4($s0)		# entry
+	lw	$t6, 8($s0)		# at_entry
+	sw	$t5, -4(FP)		# save entry
+	sw	$t6, -8(FP)		# save at_entry
+	lw	$t5, 12($s0)		# at_phent
+	lw	$t6, 16($s0)		# at_phnum
+	sw	$t5, -12(FP)		# save at_phent
+	sw	$t6, -16(FP)		# save at_phnum
+	lw	$t5, 20($s0)		# at_phdr
+	lw	$t6, 24($s0)		# at_base
+	sw	$t5, -20(FP)		# save at_phdr
+	sw	$t6, -24(FP)		# save at_base
+	lw	$t5, 28($s0)		# fpu_mode
+	sw	$t5, -28(FP)		# save fpu_mode
+	sub	$sp, $sp, $t1		# space for string
+	/* Save the input string.  */
+	add	$t5, $t2, $t1		# end of source ($t2)
+	move	$t6, $sp		# dst
+	move	$s0, $t1		# $s0 = length of string
+	/* src = $t2, dst = $t6 */
+	bgeu	$t2, $t5, 2f		# there already?
+	nop
+1:	lb	$t1, ($t2)		# $t1 = *$t2
+	addi	$t2, $t2, 1		# $t2++
+	addi	$t6, $t6, 1		# $t6++
+	bltu	$t2, $t5, 1b
+	sb	$t1, -1($t6)		# *($t6 - 1) = $t1
+2:	move	$s3, $sp		# copy of string
+	and	$sp, $sp, -16		# align stack
+copy_env_and_args:
+	/* Copy argc, argv, and the environment array.
+	   $t4 = destination, $t5 = src, $s2 = src_end  */
+	move	$t4, $t3		# destination of argc
+	move	$t5, $s6		# original SP
+	bgeu	$t5, $s2, 2f		# there already?
+	nop
+1:	lw	$t1, ($t5)		# $t1 = *src
+	addi	$t5, $t5, 4		# src++
+	addi	$t4, $t4, 4		# dst++
+	bltu	$t5, $s2, 1b		# src < src_end
+	sw	$t1, -4($t4)		# *(dst - 4) = $t1
+copy_auxv:
+	/* $t4 = destination, $t5 = first auxval.  */
+2:	lw	$t1, ($t5)		# a_type
+	lw	$t2, 4($t5)		# a_un.a_val
+	addi	$t4, $t4, 8		# (Elf32_auxv_t *) dst++
+	addi	$t5, $t5, 8		# (Elf32_auxv_t *) src++
+	beqz	$t1, 8f			# AT_NULL
+	li	$t6, 3
+	beq	$t1, $t6, 1f		# AT_PHDR
+	li	$t6, 4
+	beq	$t1, $t6, 2f		# AT_PHENT
+	li	$t6, 5
+	beq	$t1, $t6, 3f		# AT_PHNUM
+	li	$t6, 9
+	beq	$t1, $t6, 4f		# AT_ENTRY
+	li	$t6, 7
+	beq	$t1, $t6, 5f		# AT_BASE
+	li	$t6, 31
+	beq	$t1, $t6, 6f		# AT_EXECFN
+	nop
+	b	7f
+	nop
+1:	b	7f
+	lw	$t2, -20(FP)
+2:	b	7f
+	lw	$t2, -12(FP)
+3:	b	7f
+	lw	$t2, -16(FP)
+4:	b	7f
+	lw	$t2, -8(FP)
+5:	b	7f
+	lw	$t2, -24(FP)
+6:	b	7f
+	move	$t2, $t0
+7:	sw	$t1, -8($t4)		# dst->a_type
+	j	copy_auxv
+	sw	$t2, -4($t4)		# dst->a_un.a_val
+	/* Copy the final element.  */
+8:	sw	$t1, -8($t4)		# dst->a_type
+	sw	$t2, -4($t4)		# dst->a_un.a_val
+finish:
+	/* Copy the string to its position in auxv
+	   (src = $s3, dst = $t0).  */
+	add	$t1, $s3, $s0		# src end
+	bgeu	$s3, $t1, 2f		# there already?
+	nop
+1:	lb	$t2, ($s3)		# c = *src
+	addi	$s3, $s3, 1		# *src++
+	addi	$t0, $t0, 1		# dst++
+	bltu	$s3, $t1, 1b
+	sb	$t2, -1($t0)	   	# *(dst - 1) = c
+	/* Save variables.  */
+2:	move	$s6, $t3	   	# new stack pointer
+	lw	$t4, 4(FP)		# secondary fd
+	lw	$s1, (FP)		# primary fd, delay slot, preserved
 	li	$t2, -1			# immediate -1
-	beq	$t0, $t2, .finish1	# secondary fd set?
+	beq	$t4, $t2, finish1	# secondary fd set?
 	li	$v0, SYSCALL_close	# SYS_close, delay slot
-	move	$a0, $t0		# fd
+	move	$a0, $t4		# fd
 	syscall				# syscall
 	li	$v0, SYSCALL_close	# SYS_close
-.finish1:
+finish1:
 	move	$a0, $s1		# primary fd
 	syscall				# syscall
 	li	$v0, SYSCALL_prctl	# SYS_prctl
 	li	$a0, 45			# PR_SET_FP_MODE
-	lw	$a1, 28($s0)		# fpu_mode
+	lw	$a1, -28(FP)		# fpu_mode
 	move	$a2, $zero		# arg3
 	move	$a3, $zero		# arg4
 SYSCALL(`$a2',`$a2',`$a2',`$a2')	# syscall args
 	syscall				# syscall
 RESTORE()				# restore sp
-.jump:
+jump:
 	move	$v0, $zero		# rtld_fini
-	lw	$t0, 4($s0)		# entry
+	lw	$t9, -4(FP)		# entry
 	move	$sp, $s6		# restore stack pointer, delay slot
-	jr	$t0			# enter
+        /* Clear at least one page's worth of stack.  glibc on mipsel
+	   copies certain fields from the stack to the `link_map'
+	   structure representing ld.so, which are not subsequently
+	   replaced if otherwise than zero.
+
+	   XXX: report this glibc bug?  */
+	addi	$v0, $sp, -4096
+	and	$v0, $v0, -4095
+1:	sw	$zero, ($v0)		# copy 32 byte blocks
+	sw	$zero, 4($v0)
+	sw	$zero, 8($v0)
+	sw	$zero, 12($v0)
+	sw	$zero, 16($v0)
+	sw	$zero, 20($v0)
+	sw	$zero, 24($v0)
+	sw	$zero, 28($v0)
+	addi	$v0, $v0, 32
+	sub	$t0, $sp, $v0		# remainder
+	bge	$t0, 32, 1b		# test remainder
+	nop				# copy 4 byte blocks
+	beqz	$t0, 2f
+1:	addi	$v0, $v0, 4
+	bltu	$v0, $sp, 1b
+	sw	$zero, -4($v0)
+2:	jr	$t9			# enter
 	nop				# delay slot
 
-.auxvtab:
+## timespec:
-	.long	0			# 0
+## 	.long	10
-	.long	0			# 1
+## 	.long	10
-	.long	0			# 2
-	.long	20			# 3 AT_PHDR
-	.long	12			# 4 AT_PHENT
-	.long	16			# 5 AT_PHNUM
-	.long	0			# 6
-	.long	24			# 7 AT_BASE
-	.long	0			# 8
-	.long	8			# 9 AT_ENTRY
-
-.timespec:
-	.long	10
-	.long	10
 
 # Local Variables:
 # asm-comment-char: ?#

exec/loader-x86.s

@@ -15,26 +15,29 @@
 # You should have received a copy of the GNU General Public License
 # along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
 
+/* Sorry!  This program is a hopeless shambles in consequence of
+   being hastily written in under twenty minutes with minimal testing.  */
+
 	.section .text
 	.global _start
 _start:
-#	movl	$162, %eax		# SYS_nanosleep
+	## movl	$162, %eax		# SYS_nanosleep
-#	leal	timespec, %ebx
+	## leal	timespec, %ebx
-#	xorl	%ecx, %ecx
+	## xorl	%ecx, %ecx
-#	int	$0x80
+	## int	$0x80
 	leal	8(%esp), %ebp		# ebp = start of load area
 	subl	$8, %esp		# (%esp) = primary fd, 4(%esp) = secondary fd
 	movl	$-1, 4(%esp)
-.next_action:
+next_action:
 	movl	(%ebp), %edx		# edx = action number
 	andl	$-17, %edx
 	cmpl	$0, %edx		# open file?
-	je	.open_file
+	je	open_file
 	cmpl	$3, %edx		# jump?
-	je	.rest_of_exec
+	je	rest_of_exec
 	cmpl	$4, %edx		# anonymous mmap?
-	je	.do_mmap_anon
+	je	do_mmap_anon
-.do_mmap:
+do_mmap:
 	subl	$24, %esp
 	movl	$90, %eax		# SYS_old_mmap
 	movl	%esp, %ebx
@@ -52,27 +55,27 @@ _start:
 	movl	%ecx, 16(%esp)		# fd
 	movl	8(%ebp), %ecx		# offset
 	movl	%ecx, 20(%esp)
-.do_mmap_1:
+do_mmap_1:
 	int	$0x80
 	addl	$24, %esp		# restore esp
 	cmpl	$-1, %eax		# mmap failed?
-	je	.perror
+	je	perror
 	movl	24(%ebp), %ecx		# clear
 	testl	%ecx, %ecx
-	jz	.continue
+	jz	continue
 	movl	4(%ebp), %esi		# start of mapping
 	addl	16(%ebp), %esi		# end of mapping
 	subl	%ecx, %esi		# start of clear area
-.again:
+again:
 	testl	%ecx, %ecx
-	jz	.continue
+	jz	continue
 	subl	$1, %ecx
 	movb	$0, (%esi, %ecx, 1)
-	jmp	.again
+	jmp	again
-.continue:
+continue:
 	leal	28(%ebp), %ebp
-	jmp	.next_action
+	jmp	next_action
-.do_mmap_anon:
+do_mmap_anon:
 	subl	$24, %esp
 	movl	$90, %eax		# SYS_old_mmap
 	movl	%esp, %ebx
@@ -87,8 +90,8 @@ _start:
 	movl	$-1, 16(%esp)		# fd
 	movl	8(%ebp), %ecx		# offset
 	movl	%ecx, 20(%esp)
-	jmp	.do_mmap_1
+	jmp	do_mmap_1
-.open_file:
+open_file:
 	movl	$5, %eax		# SYS_open
 	leal	4(%ebp), %ebx		# ebx = %esp + 8
 	pushl	%ebx
@@ -96,27 +99,27 @@ _start:
 	xorl	%edx, %edx		# mode = 0
 	int	$0x80
 	cmpl	$-1, %eax		# open failed?
-	jle	.perror
+	jle	perror
 	movl	%ebp, %esi		# (esi) = original action number
 	popl	%ebp			# ebp = start of string
 	movl	%ebp, %ecx		# char past separator
 	decl	%ebp
-.nextc:
+nextc:
 	incl	%ebp
 	movb	(%ebp), %dl		# dl = *ebp
 	cmpb	$47, %dl		# dl == '\?'?
-	jne	.nextc1
+	jne	nextc1
 	leal	1(%ebp), %ecx		# ecx = char past separator
-.nextc1:
+nextc1:
 	cmpb	$0, %dl			# dl == 0?
-	jne	.nextc
+	jne	nextc
 	addl	$4, %ebp		# adjust past ebp prior to rounding
 	andl	$-4, %ebp		# round ebp up to the next long
 	testl	$16, (%esi)		# original action number & 16?
-	jz	.primary
+	jz	primary
 	movl	%eax, 4(%esp)		# secondary fd = eax
-	jmp	.next_action
+	jmp	next_action
-.primary:
+primary:
 	pushl	%ebp
 	xorl	%esi, %esi		# arg3
 	movl	%eax, 4(%esp)		# primary fd = eax
@@ -127,74 +130,168 @@ _start:
 	xorl	%ebp, %ebp		# arg5
 	int	$0x80			# syscall
 	popl	%ebp
-	jmp	.next_action
+	jmp	next_action
-.perror:
+perror:
 	movl	%eax, %ebx
 	negl	%ebx
 	movl	$1, %eax
 	int	$0x80
-.rest_of_exec:
+rest_of_exec:
 	movl	8(%esp), %ecx		# ecx = original stack pointer
 	movl	(%ecx), %esi		# esi = argc
 	leal	8(%ecx, %esi, 4), %ecx	# ecx = start of environ
-.skip_environ:
+	movl	(%esp), %eax		# %eax = primary fd
+	movl	4(%esp), %edi		# %edi = secondary fd
+skip_environ:
 	movl	(%ecx), %esi		# envp[N]
 	addl	$4, %ecx
 	testl	%esi, %esi		# envp[n] ?
-	jnz	.skip_environ		# otherwise, esi is now at the start of auxv
+	jnz	skip_environ		# otherwise, ecx is now at the end of auxv
-.one_auxv:
+1:	testl	$-1, (%ecx)		# auxv type
-	movl	(%ecx), %esi		# auxv type
 	leal	8(%ecx), %ecx		# skip to next auxv
-	testl	%esi, %esi		# is 0?
+	jnz	1b			# otherwise copy auxv
-	jz	.cleanup
+	movl	%ecx, %edx		# end of auxv
-	cmpl	$3, %esi		# is AT_PHDR
+	/* Prepare sufficient space for the new executable name at the
-	je	.replace_phdr
+	   start of the auxiliary vector.  */
-	cmpl	$4, %esi		# is AT_PHENT?
+1:	leal	32(%ebp), %esi		# file name
-	je	.replace_phent
+	/* 28(%ebp) = file name length.  */
-	cmpl	$5, %esi		# is AT_PHNUM?
+	subl	28(%ebp), %ecx		# destination of file name
-	je	.replace_phnum
+	decl	%ecx
-	cmpl	$9, %esi		# is AT_ENTRY?
+	/* This is still 16 bytes on i386--see arch_align_stack:
-	je	.replace_entry
+	   https://android.googlesource.com/kernel/goldfish/+/refs/heads
-	cmpl	$7, %esi		# is AT_BASE
+	   /android-goldfish-3.10/arch/x86/kernel/process.c#446.  */
-	je	.replace_base
+	andl	$-16, %ecx		# align stack
-	jmp	.one_auxv
+	/* Prepare to store the auxiliary, environment, and argument
-.replace_phdr:
+	   vectors.  */
-	movl	20(%ebp), %esi
+	subl	8(%esp), %edx		# end of auxv to start of stack
+	negl	%edx
+	andl	$-16, %edx		# align value
+	movl	%ecx, (%ebp)		# temporarily save ecx
+	addl	%edx, %ecx		# %ecx = new position of argc
+	/* Allocate a temporary stack away from any crucial data in which
+	   to store parameters and temporaries.  */
+	cmpl	%ecx, %ebp		# select position of temporary stack
+	movl	%ecx, %ebx		# ebx = temporary stack
+	jge	1f			# %ebx = MIN (%ecx, %edx)
+	movl	%ebp, %ebx		# ebx = temporary stack
+1:	movl	(%ebp), %edx		# edx = destination of file name
+	movl	%edx, -4(%ebx)		# -4(%ebx) = destination of file name
+	movl	28(%ebp), %edx		# file name length
+	movl	%edx, -8(%ebx)		# -8(%ebx) = file name length
+	movl	%ecx, -12(%ebx)		# -12(%ebx) = new position of argc
+	movl	%esi, -16(%ebx)		# -16(%ebx) = file name
+	movl	8(%esp), %edx		# %edx = initial stack pointer
+	leal	-16(%ebx), %esp		# switch to temporary stack
+	/* Push parameters of `struct exec_jump_command'.  */
+	push	%edx			# initial stack pointer -20(%ebx)
+	push	4(%ebp)			# entry -24(%ebx)
+	push	8(%ebp)			# at_entry -28(%ebx)
+	push	12(%ebp)		# at_phent -32(%ebx)
+	push	16(%ebp)		# at_phnum -36(%ebx)
+	push	20(%ebp)		# at_phdr -40(%ebx)
+	push	24(%ebp)		# at_base -44(%ebx)
+	/* Push primary and secondary fds.  */
+	push	%eax			# primary fd -48(%ebx)
+	push	%edi			# secondary fd -52(%ebx)
+	/* Swap %ebp with %ebx.  */
+	push	%ebp
+	push	%ebx
+	pop	%ebp
+	pop	%ebx			# ebx is the exec_jump_command
+	/* Save the string lest it should be overwritten while
+	   the environment is moved.  */
+	movl	-8(%ebp), %ecx
+	subl	$4, %esp		# -56(%ebp)
+	subl	%ecx, %esp
+	leal	-1(%esp), %edi
+	movl	%edi, -56(%ebp)		# copy of string
+	incl	%ecx
+	movl	%edi, %esp
+	cld
+  rep	movsb				# complete copy
+	andl	$-4, %esp		# align stack
+	movl	-12(%ebp), %ecx
+	/* Begin moving the argument vectors and environment from
+	   the original SP to the adjusted one.  */
+1:	movl	(%edx), %eax		# argc and values
+	movl	%eax, (%ecx)
+	leal	4(%ecx), %ecx
+	leal	4(%edx), %edx
+	testl	%eax, %eax
+	jnz	1b
+1:	movl	(%edx), %eax		# envp
+	movl	%eax, (%ecx)
+	leal	4(%ecx), %ecx
+	leal	4(%edx), %edx
+	testl	%eax, %eax
+	jnz	1b
+copy_auxv:
+	movl	(%edx), %eax		# a_type
+	movl	4(%edx), %esi		# a_un.a_val
+	testl	%eax, %eax
+	leal	8(%edx), %edx
+	movl	%eax, (%ecx)		# copy auxv type
+	leal	8(%ecx), %ecx
+	jz	cleanup			# AT_NULL
+	cmpl	$3, %eax		# AT_PHDR
+	jz	1f
+	cmpl	$4, %eax		# AT_PHENT
+	jz	2f
+	cmpl	$5, %eax		# AT_PHNUM
+	jz	3f
+	cmpl	$9, %eax		# AT_ENTRY
+	jz	4f
+	cmpl	$7, %eax		# AT_BASE
+	jz	5f
+	cmpl	$31, %eax		# AT_EXECFN
+	jz	6f
 	movl	%esi, -4(%ecx)
-	jmp	.one_auxv
+	jmp	copy_auxv
-.replace_phent:
+1:	movl	-40(%ebp), %esi
-	movl	12(%ebp), %esi
 	movl	%esi, -4(%ecx)
-	jmp	.one_auxv
+	jmp	copy_auxv
-.replace_phnum:
+2:	movl	-32(%ebp), %esi
-	movl	16(%ebp), %esi
 	movl	%esi, -4(%ecx)
-	jmp	.one_auxv
+	jmp	copy_auxv
-.replace_entry:
+3:	movl	-36(%ebp), %esi
-	movl	8(%ebp), %esi
 	movl	%esi, -4(%ecx)
-	jmp	.one_auxv
+	jmp	copy_auxv
-.replace_base:
+4:	movl	-28(%ebp), %esi
-	movl	24(%ebp), %esi
 	movl	%esi, -4(%ecx)
-	jmp	.one_auxv
+	jmp	copy_auxv
-.cleanup:
+5:	movl	-44(%ebp), %esi
+	movl	%esi, -4(%ecx)
+	jmp	copy_auxv
+6:	movl	-4(%ebp), %esi		# Note: the filename is yet to be copied.
+	movl	%esi, -4(%ecx)
+	jmp	copy_auxv
+cleanup:
+	movl	$0, -4(%ecx)		# AT_NULL value
+	/* Copy data for AT_EXECFN to the destination address.  */
+	movl	-4(%ebp), %edi
+	movl	-56(%ebp), %esi
+	movl	-8(%ebp), %ecx
+	incl	%ecx
+  rep	movsb
 	movl	$6, %eax		# SYS_close
-	cmpl	$-1, 4(%esp)		# see if interpreter fd is set
+	cmpl	$-1, -52(%ebp)		# see if interpreter fd is set
-	je	.cleanup_1
+	je	cleanup_1
-	movl	4(%esp), %ebx
+	movl	-52(%ebp), %ebx
 	int 	$0x80
 	movl	$6, %eax		# SYS_close
-.cleanup_1:
+cleanup_1:
-	movl	(%esp), %ebx
+	movl	-48(%ebp), %ebx
 	int	$0x80
-.enter:
+enter:
 	pushl	$0
 	popfl				# restore floating point state
-	movl	8(%esp), %esp		# restore initial stack pointer
+	movl	-12(%ebp), %esp		# restore initial stack pointer
 	xorl	%edx, %edx		# clear rtld_fini
-	jmpl	*4(%ebp)		# entry
+	jmpl	*-24(%ebp)		# entry
+## timespec:
+## 	.long	10
+## 	.long	10
 
-timespec:
+# Local Variables:
-	.long	10
+# asm-comment-char: ?#
-	.long	10
+# End:

exec/loader-x86_64.s

@@ -25,17 +25,17 @@ _start:
 	popq	%r13			# original SP
 	popq	%r15			# size of load area.
 	movq	$-1, %r12		# r12 is the interpreter fd
-.next_action:
+next_action:
 	movq	(%rsp), %r14		# action number
 	movq	%r14, %r15		# original action number
 	andq	$-17, %r14
 	cmpq	$0, %r14		# open file?
-	je	.open_file
+	je	open_file
 	cmpq	$3, %r14 		# jump?
-	je	.rest_of_exec
+	je	rest_of_exec
 	cmpq	$4, %r14		# anonymous mmap?
-	je	.do_mmap_anon
+	je	do_mmap_anon
-.do_mmap:
+do_mmap:
 	movq	$9, %rax		# SYS_mmap
 	movq	8(%rsp), %rdi		# address
 	movq	16(%rsp), %r9		# offset
@@ -46,26 +46,26 @@ _start:
 	testq	$16, %r15
 	movq	%r12, %r8
 	cmovzq	%rbx, %r8
-.do_mmap_1:
+do_mmap_1:
 	syscall
 	cmpq	$-1, %rax		# mmap failed
-	je	.perror
+	je	perror
 	movq	48(%rsp), %r9		# clear
 	testq	%r9, %r9
-	jz	.continue
+	jz	continue
 	movq	8(%rsp), %r10		# start of mapping
 	addq	32(%rsp), %r10		# end of mapping
 	subq	%r9, %r10		# start of clear area
-.again:
+again:
 	testq	%r9, %r9
-	jz	.continue
+	jz	continue
 	subq	$1, %r9
 	movb	$0, (%r10, %r9, 1)
-	jmp	.again
+	jmp	again
-.continue:
+continue:
 	leaq	56(%rsp), %rsp
-	jmp	.next_action
+	jmp	next_action
-.do_mmap_anon:
+do_mmap_anon:
 	movq	$9, %rax		# SYS_mmap
 	movq	8(%rsp), %rdi		# address
 	movq	16(%rsp), %r9		# offset
@@ -73,35 +73,35 @@ _start:
 	movq	32(%rsp), %rsi		# length
 	movq	40(%rsp), %r10		# flags
 	movq	$-1, %r8		# -1
-	jmp	.do_mmap_1
+	jmp	do_mmap_1
-.open_file:
+open_file:
 	movq	$2, %rax		# SYS_open
 	leaq	8(%rsp), %rdi		# rdi = %rsp + 8
 	xorq	%rsi, %rsi		# flags = O_RDONLY
 	xorq	%rdx, %rdx		# mode = 0
 	syscall
 	cmpq	$-1, %rax		# open failed
-	jle	.perror
+	jle	perror
 	movq	%rdi, %rsp		# rsp = start of string
 	subq	$1, %rsp
 	movq	%rsp, %r14		# r14 = start of string
-.nextc:
+nextc:
 	addq	$1, %rsp
 	movb	(%rsp), %dil		# rdi = *rsp
 	cmpb	$47, %dil		# *rsp == '/'?
-	jne	.nextc1
+	jne	nextc1
 	movq	%rsp, %r14		# r14 = rsp
 	addq	$1, %r14		# r14 = char past separator
-.nextc1:
+nextc1:
 	cmpb	$0, %dil		# *rsp == 0?
-	jne	.nextc
+	jne	nextc
 	addq	$8, %rsp		# adjust past rsp prior to rounding
 	andq	$-8, %rsp		# round rsp up to the next quad
 	testq	$16, %r15		# r15 & 16?
-	jz	.primary
+	jz	primary
 	movq	%rax, %r12		# otherwise, move fd to r12
-	jmp	.next_action
+	jmp	next_action
-.primary:
+primary:
 	movq	%rax, %rbx		# if not, move fd to rbx
 	movq	$157, %rax		# SYS_prctl
 	movq	$15, %rdi		# PR_SET_NAME
@@ -111,82 +111,159 @@ _start:
 	xorq	%r8, %r8		# arg4
 	xorq	%r9, %r9		# arg5
 	syscall
-	jmp	.next_action
+	jmp	next_action
-.perror:
+perror:
 	movq	%rax, %r12		# error code
 	negq	%r12
 	movq	$1, %rax		# SYS_write
 	movq	$1, %rdi		# stdout
 	leaq	error(%rip), %rsi	# buffer
-	movq	$23, %rdx		# count
+	movq	$24, %rdx		# count
 	syscall
 	movq	$60, %rax		# SYS_exit
 	movq	%r12, %rdi		# code
 	syscall
-.rest_of_exec:				# rsp now points to six quads:
+rest_of_exec:				# rsp now points to seven quads + string:
 	movq	%rsp, %r8		# now, they are r8
 	movq	%r13, %rsp		# restore SP
 	popq	%r10			# argc
 	leaq	8(%rsp,%r10,8), %rsp	# now at start of environ
-.skip_environ:
+skip_environ:
-	popq	%r10			# envp[N]
+	popq	%rcx			# envp[N]
-	testq	%r10, %r10		# envp[n]?
+	testq	%rcx, %rcx		# envp[n]?
-	jnz	.skip_environ		# otherwise, rsp is now at the start of auxv
+	jnz	skip_environ		# otherwise, rsp is now at the end of auxv
-.one_auxv:
+	movq	%rsp, %r11		# start of auxv
-	popq	%rcx			# auxv type
+1:	testq	$-1, (%r11)		# NULL?
-	addq	$8, %rsp		# skip value
+	leaq	16(%r11), %r11		# next entry
-	testq	%rcx, %rcx		# is 0?
+	jnz	1b			# otherwise copy auxv
-	jz	.cleanup
+	/* Prepare sufficient space for the new executable name at the
-	cmpq	$3, %rcx		# is AT_PHDR?
+	   start of the auxiliary vector.  */
-	je	.replace_phdr
+1:	leaq	64(%r8), %rsi		# file name
-	cmpq	$4, %rcx		# is AT_PHENT?
+	movq	56(%r8), %r9		# name length
-	je	.replace_phent
+	leaq	-1(%r11), %r14
-	cmpq	$5, %rcx		# is AT_PHNUM?
+	subq	%r9, %r14		# destination of file name
-	je	.replace_phnum
+	andq	$-16, %r14		# align destination
-	cmpq	$9, %rcx		# is AT_ENTRY?
+	/* Prepare to copy argv, environ and auxv.  */
-	je	.replace_entry
+1:	subq	%r13, %r11		# size required
-	cmpq	$7, %rcx		# is AT_BASE?
+	addq	$15, %r11		# align size
-	je	.replace_base
+	andq	$-16, %r11
-	jmp	.one_auxv
+	negq	%r11			# subtract
-.replace_phdr:
+	leaq	-56(%r14,%r11,1), %r11	# %r11 = destination - struct exec_jump_command
-	movq	40(%r8), %r9
+	/* Move the file name out of the way.  */
-	movq	%r9, -8(%rsp)		# set at_phdr
+	leaq	9(%rsi,%r9,1), %r10	# end of name + 8
-	jmp	.one_auxv
+	cmpq	%r10, %r11		# end of name >= struct exec_jump_command - 8
-.replace_phent:
+	jae	1f			# save exec command
-	movq	24(%r8), %r9
+	xorq	%r10, %r10
-	movq	%r9, -8(%rsp)		# set at_phent
+	subq	%r9, %r10
-	jmp	.one_auxv
+	leaq	-9(%r11,%r10,1), %rdi	# position of new name
-.replace_phnum:
+	movq	%rdi, %r10
-	movq	32(%r8), %r9
+	cld
-	movq	%r9, -8(%rsp)		# set at_phnum
+	leaq	1(%r9), %rcx		# length (including termination)
-	jmp	.one_auxv
+  rep	movsb				# copy file name
-.replace_entry:
+	movq	%r10, %rsi		# file name
-	movq	16(%r8), %r9
+	/* Preserve jump command.  */
-	movq	%r9, -8(%rsp)		# set at_entry
+1:	cmpq	%r8, %r11		# decide copy direction
-	jmp	.one_auxv
+	jb	1f			# copy forward
-.replace_base:
+	movq	48(%r8), %rax
-	movq	48(%r8), %r9
+	movq	%rax, 48(%r11)		# %r11->at_base
-	movq	%r9, -8(%rsp)		# set at_base
+	movq	40(%r8), %rax
-	jmp	.one_auxv
+	movq	%rax, 40(%r11)		# %r11->at_phdr
-.cleanup:
+	movq	32(%r8), %rax
+	movq	%rax, 32(%r11)		# %r11->at_phnum
+	movq	24(%r8), %rax
+	movq	%rax, 24(%r11)		# %r11->at_phent
+	movq	16(%r8), %rax
+	movq	%rax, 16(%r11)		# %r11->at_entry
+	movq	8(%r8), %rax
+	movq	%rax, 8(%r11)		# %r11->entry
+	movq	(%r8), %rax
+	movq	%rax, (%r11)		# %r11->command
+	movq	%r14, -8(%r11)		# destination of file name
+	jmp	copy_env_and_args
+1:	movq	%r14, -8(%r11)		# destination of file name
+	movq	(%r8), %rax
+	movq	%rax, (%r11)		# %r11->command
+	movq	8(%r8), %rax
+	movq	%rax, 8(%r11)		# %r11->entry
+	movq	16(%r8), %rax
+	movq	%rax, 16(%r11)		# %r11->at_entry
+	movq	24(%r8), %rax
+	movq	%rax, 24(%r11)		# %r11->at_phent
+	movq	32(%r8), %rax
+	movq	%rax, 32(%r11)		# %r11->at_phnum
+	movq	40(%r8), %rax
+	movq	%rax, 40(%r11)		# %r11->at_phdr
+	movq	48(%r8), %rax
+	movq	%rax, 48(%r11)		# %r11->at_base
+copy_env_and_args:
+	/* Copy argv and environ to their new positions.  */
+	leaq	8(%r13), %r10		# src
+	leaq	64(%r11), %rdi		# dest
+	movq	(%r13), %rcx		# argc
+	movq	%rcx, -8(%rdi)		# copy argc
+1:	movq	(%r10), %rcx
+	movq	%rcx, (%rdi)
+	testq	%rcx, %rcx
+	leaq	8(%r10), %r10		# src++
+	leaq	8(%rdi), %rdi		# dst++
+	jnz	1b
+1:	movq	(%r10), %rcx
+	movq	%rcx, (%rdi)
+	testq	%rcx, %rcx
+	leaq	8(%r10), %r10		# src++
+	leaq	8(%rdi), %rdi		# dst++
+	jnz	1b
+copy_auxv:
+	movq	(%r10), %rcx		# a_type
+	movq	8(%r10), %rdx		# a_un.a_val
+	addq	$16, %r10		# next entry
+	movq	%rcx, (%rdi)
+	jrcxz	cleanup			# AT_NULL
+	cmpq	$3, %rcx		# AT_PHDR
+	cmoveq	40(%r11), %rdx		# %r11->at_phdr
+	cmpq	$4, %rcx		# AT_PHENT
+	cmoveq	24(%r11), %rdx		# %r11->at_phent
+	cmpq	$5, %rcx		# AT_PHNUM
+	cmoveq	32(%r11), %rdx		# %r11->at_phnum
+	cmpq	$9, %rcx		# AT_ENTRY
+	cmoveq	16(%r11), %rdx		# %r11->at_entry
+	cmpq	$7, %rcx		# AT_BASE
+	cmoveq	48(%r11), %rdx		# %r11->at_base
+	cmpq	$31, %rcx		# AT_EXECFN
+	jne	1f
+	movq	-8(%r11), %rdx		# string
+1:	movq	%rdx, 8(%rdi)		# AT_NULL value
+	addq	$16, %rdi		# next entry
+	jmp	copy_auxv
+cleanup:
+	/* Copy the filename.  */
+	movq	-8(%r11), %rdi		# destination of file name
+	leaq	1(%r9), %rcx		# length (including termination)
+  rep	movsb
+	movq	%rdx, 8(%rdi)		# AT_NULL value
+	leaq	56(%r11), %r13		# restore original stack pointer
 	movq	$3, %rax		# SYS_close
 	cmpq	$-1, %r12		# see if interpreter fd is set
-	je	.cleanup_1
+	je	cleanup_1
 	movq	%r12, %rdi
 	syscall
 	movq	$3, %rax		# SYS_close
-.cleanup_1:
+cleanup_1:
 	movq	%rbx, %rdi
 	syscall
-.enter:
+	/* Enter the program.  */
 	pushq	$0
 	popfq				# clear FP state
 	movq	%r13, %rsp		# restore SP
 	xorq	%rdx, %rdx		# clear rtld_fini
-	jmpq	*8(%r8)			# entry
+	jmpq	*-48(%rsp)		# entry
 
 error:
-	.ascii	"_start: internal error."
+	.ascii	"_start: internal error.\n"
-timespec:
+#timespec:
-	.quad	10
+#	.quad	10
-	.quad	10
+#	.quad	10
+
+# Local Variables:
+# asm-comment-char: ?#
+# End:

exec/trace.c

@@ -909,6 +909,18 @@ finish_exec (struct exec_tracee *tracee, USER_REGS_STRUCT *regs)
 	      tracee->pid, 0, 0))
     goto error;
 
+  /* Enable this block to debug the executable loader.  */
+#if 0
+  {
+    int rc, wstatus;
+  again1:
+    rc = waitpid (tracee->pid, &wstatus, __WALL);
+    if (rc == -1 && errno == EINTR)
+      goto again1;
+    ptrace (PTRACE_DETACH, tracee->pid, 0, 0);
+  }
+#endif /* 0 */
+
  error:
   free (tracee->exec_data);
   tracee->exec_data = NULL;
@@ -1234,7 +1246,11 @@ process_system_call (struct exec_tracee *tracee)
      set, this must be exec, whatever the value of SYSCALL_NUM_REG,
      which is erased when exec loads another image.  */
 
-  callno = (!tracee->exec_data ? regs.SYSCALL_NUM_REG : EXEC_SYSCALL);
+  callno = (!tracee->exec_data
+	    ? (!tracee->waiting_for_syscall
+	       ? regs.SYSCALL_NUM_REG : tracee->callno)
+	    : EXEC_SYSCALL);
+  tracee->callno = callno;
   switch (callno)
     {
     case EXEC_SYSCALL:
@@ -1641,6 +1657,11 @@ seccomp_system_call (struct exec_tracee *tracee)
 
   /* Now dispatch based on the system call.  */
   callno = regs.SYSCALL_NUM_REG;
+
+  /* Record the call number, which may be required if one of the
+     following handlers should arrange for process_system_call to
+     intercede after the system call completes.  */
+  tracee->callno = callno;
   switch (callno)
     {
     case EXEC_SYSCALL:
@@ -1703,7 +1724,7 @@ seccomp_system_call (struct exec_tracee *tracee)
       if (rc < 0)
 	return;
 
-      tracee->waiting_for_syscall = !tracee->waiting_for_syscall;
+      tracee->waiting_for_syscall = true;
       break;
 
     default:
@@ -2021,6 +2042,7 @@ after_fork (pid_t pid)
     return 1;
 
   tracee->pid = pid;
+  tracee->callno = 0;
   tracee->next = tracing_processes;
   tracee->waiting_for_syscall = false;
   tracee->new_child = false;

java/README.res

@@ -0,0 +1,4 @@
+* The wrench icon that is superimposed on Emacs's own icon in
+  res/drawable/emacs_wrench.png was released into the Public Domain by the
+  Tango Desktop Project.
+  <https://web.archive.org/web/20230207074050/https://tango.freedesktop.org/Tango_Desktop_Project>

java/org/gnu/emacs/EmacsNative.java

@@ -196,6 +196,10 @@ public final class EmacsNative
   /* Send an ANDROID_NOTIFICATION_ACTION event.  */
   public static native void sendNotificationAction (String tag, String action);
 
+  /* Send an ANDROID_CONFIGURATION_CHANGED event.  */
+  public static native void sendConfigurationChanged (float dpiX, float dpiY,
+						      float dpiScaled);
+
   /* Return the file name associated with the specified file
      descriptor, or NULL if there is none.  */
   public static native byte[] getProcName (int fd);

java/org/gnu/emacs/EmacsSdk7FontDriver.java

@@ -29,6 +29,7 @@ import android.graphics.Rect;
 import android.graphics.Typeface;
 import android.graphics.Canvas;
 
+import android.util.DisplayMetrics;
 import android.util.Log;
 
 
@@ -103,6 +104,8 @@ public class EmacsSdk7FontDriver extends EmacsFontDriver
     public
     Sdk7FontEntity (Sdk7Typeface typeface)
     {
+      DisplayMetrics metrics;
+
       foundry = "Google";
       family = typeface.familyName;
       adstyle = null;
@@ -110,7 +113,8 @@ public class EmacsSdk7FontDriver extends EmacsFontDriver
       slant = typeface.slant;
       spacing = typeface.spacing;
       width = typeface.width;
-      dpi = Math.round (EmacsService.SERVICE.metrics.scaledDensity * 160f);
+      metrics = EmacsService.SERVICE.getResources ().getDisplayMetrics ();
+      dpi = Math.round (metrics.scaledDensity * 160f);
 
       this.typeface = typeface;
     }
@@ -127,6 +131,7 @@ public class EmacsSdk7FontDriver extends EmacsFontDriver
     {
       float totalWidth;
       String testWidth, testString;
+      DisplayMetrics metrics;
 
       this.typeface = typeface;
       this.pixelSize = pixelSize;
@@ -137,7 +142,8 @@ public class EmacsSdk7FontDriver extends EmacsFontDriver
       slant = typeface.slant;
       spacing = typeface.spacing;
       width = typeface.width;
-      dpi = Math.round (EmacsService.SERVICE.metrics.scaledDensity * 160f);
+      metrics = EmacsService.SERVICE.getResources ().getDisplayMetrics ();
+      dpi = Math.round (metrics.scaledDensity * 160f);
 
       /* Compute the ascent and descent.  */
       typeface.typefacePaint.setTextSize (pixelSize);

java/org/gnu/emacs/EmacsService.java

@@ -123,9 +123,6 @@ public final class EmacsService extends Service
   public static final int IC_MODE_TEXT     = 2;
   public static final int IC_MODE_PASSWORD = 3;
 
-  /* Display metrics used by font backends.  */
-  public DisplayMetrics metrics;
-
   /* Flag that says whether or not to print verbose debugging
      information when responding to an input method.  */
   public static final boolean DEBUG_IC = false;
@@ -149,8 +146,9 @@ public final class EmacsService extends Service
      thread.  */
   private Thread mainThread;
 
-  /* "Resources" object required by GContext bookkeeping.  */
+  /* The display's horizontal and vertical density and that which is
-  public static Resources resources;
+     consulted for font scaling.  */
+  private double dpiX, dpiY, dpiScaled;
 
   static
   {
@@ -236,10 +234,12 @@ public final class EmacsService extends Service
     final AssetManager manager;
     Context app_context;
     final String filesDir, libDir, cacheDir, classPath;
-    final double pixelDensityX;
+    final float pixelDensityX;
-    final double pixelDensityY;
+    final float pixelDensityY;
-    final double scaledDensity;
+    final float scaledDensity;
-    double tempScaledDensity;
+    float tempScaledDensity;
+    Resources resources;
+    DisplayMetrics metrics;
 
     super.onCreate ();
 
@@ -265,13 +265,18 @@ public final class EmacsService extends Service
        corresponds to 1 pixel, not 72 or 96 as used elsewhere.  This
        difference is codified in PT_PER_INCH defined in font.h.  */
 
-    if (tempScaledDensity < 160)
+    if (tempScaledDensity < 160.0f)
-      tempScaledDensity = 160;
+      tempScaledDensity = 160.0f;
 
     /* scaledDensity is const as required to refer to it from within
        the nested function below.  */
     scaledDensity = tempScaledDensity;
 
+    /* Save these fields for future reference.  */
+    dpiX = pixelDensityX;
+    dpiY = pixelDensityY;
+    dpiScaled = scaledDensity;
+
     /* Remove all tasks from previous Emacs sessions but the task
        created by the system at startup.  */
     EmacsWindowManager.MANAGER.removeOldTasks (this);
@@ -304,9 +309,8 @@ public final class EmacsService extends Service
 	    run ()
 	    {
 	      EmacsNative.setEmacsParams (manager, filesDir, libDir,
-					  cacheDir, (float) pixelDensityX,
+					  cacheDir, pixelDensityX,
-					  (float) pixelDensityY,
+					  pixelDensityY, scaledDensity,
-					  (float) scaledDensity,
 					  classPath, EmacsService.this,
 					  Build.VERSION.SDK_INT);
 	    }
@@ -344,6 +348,40 @@ public final class EmacsService extends Service
     super.onLowMemory ();
   }
 
+  @Override
+  public void
+  onConfigurationChanged (Configuration newConfig)
+  {
+    DisplayMetrics metrics;
+    float pixelDensityX, pixelDensityY, scaledDensity;
+
+    metrics = getResources ().getDisplayMetrics ();
+
+    /* The display configuration may have been altered.  Retrieve the
+       revised display density and deliver an event if so.  */
+    pixelDensityX = metrics.xdpi;
+    pixelDensityY = metrics.ydpi;
+    scaledDensity = ((getScaledDensity (metrics)
+		      / metrics.density) * pixelDensityX);
+
+    /* A density below 160 probably indicates a system bug.  See
+       onCreate for more commentary.  */
+    if (scaledDensity < 160.0f)
+      scaledDensity = 160.0f;
+
+    if (pixelDensityX != dpiX || pixelDensityY != dpiY
+	|| scaledDensity != dpiScaled)
+      {
+	dpiX = pixelDensityX;
+	dpiY = pixelDensityY;
+	dpiScaled = scaledDensity;
+	EmacsNative.sendConfigurationChanged (pixelDensityX, pixelDensityY,
+					      scaledDensity);
+      }
+
+    super.onConfigurationChanged (newConfig);
+  }
+
 
 
   /* Functions from here on must only be called from the Emacs

lib-src/emacsclient.c

@@ -1715,8 +1715,13 @@ set_socket (bool no_exit_if_error)
 }
 
 #ifdef HAVE_NTGUI
-FARPROC set_fg;  /* Pointer to AllowSetForegroundWindow.  */
+typedef void (* VOIDFNPTR) (void);
-FARPROC get_wc;  /* Pointer to RealGetWindowClassA.  */
+typedef BOOL (WINAPI *AllowSetForegroundWindow_proc) (DWORD);
+/* Pointer to AllowSetForegroundWindow.  */
+static AllowSetForegroundWindow_proc set_fg;
+typedef UINT (WINAPI *RealGetWindowClassA_proc) (HWND, LPSTR, UINT);
+/* Pointer to RealGetWindowClassA.  */
+static RealGetWindowClassA_proc get_wc;
 
 void w32_set_user_model_id (void);
 
@@ -1794,8 +1799,8 @@ w32_give_focus (void)
      emacsclient can allow Emacs to grab the focus by calling the function
      AllowSetForegroundWindow.  Unfortunately, older Windows (W95, W98 and
      NT) lack this function, so we have to check its availability.  */
-  if ((set_fg = GetProcAddress (user32, "AllowSetForegroundWindow"))
+  if ((set_fg = (AllowSetForegroundWindow_proc) (VOIDFNPTR) GetProcAddress (user32, "AllowSetForegroundWindow"))
-      && (get_wc = GetProcAddress (user32, "RealGetWindowClassA")))
+      && (get_wc = (RealGetWindowClassA_proc) (VOIDFNPTR) GetProcAddress (user32, "RealGetWindowClassA")))
     EnumWindows (w32_find_emacs_process, (LPARAM) 0);
 }
 #endif /* HAVE_NTGUI */

lib-src/seccomp-filter.c

@@ -42,6 +42,7 @@ variants of those files that can be used to sandbox Emacs before
 #include <stdlib.h>
 #include <stdint.h>
 #include <stdio.h>
+#include <asm/termbits.h>  /* mandatory accordingly to latest ioctl_tty(2) */
 #include <time.h>
 
 #include <asm/prctl.h>
@@ -64,6 +65,11 @@ variants of those files that can be used to sandbox Emacs before
 #define ARCH_CET_STATUS 0x3001
 #endif
 
+/* https://github.com/torvalds/linux/commit/9651fcedf7b92d3f7f1ab179e8ab55b85ee10fc1 */
+#ifndef MAP_DROPPABLE
+#define MAP_DROPPABLE 0x08
+#endif
+
 static ATTRIBUTE_FORMAT_PRINTF (2, 3) _Noreturn void
 fail (int error, const char *format, ...)
 {
@@ -187,7 +193,7 @@ main (int argc, char **argv)
            some versions of the dynamic loader still use it.  Also
            allow allocating thread stacks.  */
         SCMP_A3_32 (SCMP_CMP_MASKED_EQ,
-                    ~(MAP_SHARED | MAP_PRIVATE | MAP_FILE
+                    ~(MAP_SHARED | MAP_PRIVATE | MAP_FILE | MAP_DROPPABLE
                       | MAP_ANONYMOUS | MAP_FIXED | MAP_DENYWRITE
                       | MAP_STACK | MAP_NORESERVE),
                     0));
@@ -274,6 +280,11 @@ main (int argc, char **argv)
         SCMP_A0_32 (SCMP_CMP_EQ, STDIN_FILENO),
         SCMP_A1_32 (SCMP_CMP_EQ, TIOCGPGRP));
 
+  /* Allow `tcgetattr' call of glibc on physical terminal devices. */
+  RULE (SCMP_ACT_ALLOW, SCMP_SYS (ioctl),
+        SCMP_A0_32 (SCMP_CMP_EQ, STDERR_FILENO),
+        SCMP_A1_32 (SCMP_CMP_EQ, TCGETS));
+
   /* Allow reading (but not setting) file flags.  */
   RULE (SCMP_ACT_ALLOW, SCMP_SYS (fcntl),
         SCMP_A1_32 (SCMP_CMP_EQ, F_GETFL));

lib/acl-internal.c

@@ -31,7 +31,7 @@
 # include <string.h>
 #endif
 
-#if USE_ACL && HAVE_ACL_GET_FILE /* Linux, FreeBSD, Mac OS X, IRIX, Tru64, Cygwin >= 2.5 */
+#if USE_ACL && HAVE_ACL_GET_FILE /* Linux, FreeBSD, NetBSD >= 10, Mac OS X, IRIX, Tru64, Cygwin >= 2.5 */
 
 # if HAVE_ACL_TYPE_EXTENDED /* Mac OS X */
 
@@ -45,7 +45,7 @@ acl_extended_nontrivial (acl_t acl)
   return (acl_entries (acl) > 0);
 }
 
-# else /* Linux, FreeBSD, IRIX, Tru64, Cygwin >= 2.5 */
+# else /* Linux, FreeBSD, NetBSD >= 10, IRIX, Tru64, Cygwin >= 2.5 */
 
 /* ACL is an ACL, from a file, stored as type ACL_TYPE_ACCESS.
    Return 1 if the given ACL is non-trivial.
@@ -59,7 +59,7 @@ acl_access_nontrivial (acl_t acl)
      at least, allowing us to write
         return (3 < acl_entries (acl));
      but the following code is more robust.  */
-#  if HAVE_ACL_FIRST_ENTRY /* Linux, FreeBSD, Cygwin >= 2.5 */
+#  if HAVE_ACL_FIRST_ENTRY /* Linux, FreeBSD, NetBSD >= 10, Cygwin >= 2.5 */
 
   acl_entry_t ace;
   int got_one;
@@ -548,7 +548,7 @@ void
 free_permission_context (struct permission_context *ctx)
 {
 #if USE_ACL
-# if HAVE_ACL_GET_FILE /* Linux, FreeBSD, Mac OS X, IRIX, Tru64, Cygwin >= 2.5 */
+# if HAVE_ACL_GET_FILE /* Linux, FreeBSD, NetBSD >= 10, Mac OS X, IRIX, Tru64, Cygwin >= 2.5 */
   if (ctx->acl)
     acl_free (ctx->acl);
 #  if !HAVE_ACL_TYPE_EXTENDED

lib/acl-internal.h

@@ -52,10 +52,7 @@ extern int aclsort (int, int, struct acl *);
 #include <errno.h>
 
 #include <limits.h>
-
+#include <stdint.h>
-#ifndef SIZE_MAX
-# define SIZE_MAX ((size_t) -1)
-#endif
 
 #ifndef HAVE_FCHMOD
 # define HAVE_FCHMOD false
@@ -121,8 +118,13 @@ rpl_acl_set_fd (int fd, acl_t acl)
 #  endif
 
 /* Linux-specific */
-/* Cygwin >= 2.5 implements this function, but it returns 1 for all
+/* Cygwin >= 2.5 implements acl_extended_file(), but it returns 1 for nearly all
-   directories, thus is unusable.  */
+   directories — for reasons explained in
+   <https://sourceware.org/pipermail/cygwin/2025-March/257762.html> —, thus is
+   unusable.  For the user, 'ls' should not print a '+' sign, indicating the
+   presence of an ACL, for 99,9% of the files; this would not be useful.
+   Therefore, on Cygwin, we ignore the acl_extended_file function and instead
+   use our own acl_access_nontrivial function.  */
 #  if !defined HAVE_ACL_EXTENDED_FILE || defined __CYGWIN__
 #   undef HAVE_ACL_EXTENDED_FILE
 #   define HAVE_ACL_EXTENDED_FILE false

lib/acl_entries.c

@@ -22,7 +22,7 @@
 #include "acl-internal.h"
 
 /* This file assumes POSIX-draft like ACLs
-   (Linux, FreeBSD, Mac OS X, IRIX, Tru64, Cygwin >= 2.5).  */
+   (Linux, FreeBSD, NetBSD >= 10, Mac OS X, IRIX, Tru64, Cygwin >= 2.5).  */
 
 /* Return the number of entries in ACL.
    Return -1 and set errno upon failure to determine it.  */
@@ -34,7 +34,7 @@ acl_entries (acl_t acl)
 
   if (acl != NULL)
     {
-#if HAVE_ACL_FIRST_ENTRY /* Linux, FreeBSD, Mac OS X, Cygwin >= 2.5 */
+#if HAVE_ACL_FIRST_ENTRY /* Linux, FreeBSD, NetBSD >= 10, Mac OS X, Cygwin >= 2.5 */
 # if HAVE_ACL_TYPE_EXTENDED /* Mac OS X */
       /* acl_get_entry returns 0 when it successfully fetches an entry,
          and -1/EINVAL at the end.  */
@@ -45,7 +45,7 @@ acl_entries (acl_t acl)
            got_one >= 0;
            got_one = acl_get_entry (acl, ACL_NEXT_ENTRY, &ace))
         count++;
-# else /* Linux, FreeBSD, Cygwin >= 2.5 */
+# else /* Linux, FreeBSD, NetBSD >= 10, Cygwin >= 2.5 */
       /* acl_get_entry returns 1 when it successfully fetches an entry,
          and 0 at the end.  */
       acl_entry_t ace;

lib/fcntl.in.h

@@ -22,8 +22,12 @@
 #endif
 @PRAGMA_COLUMNS@
 
-#if defined __need_system_fcntl_h
+#if defined __need_system_fcntl_h || defined _@GUARD_PREFIX@_ALREADY_INCLUDING_FCNTL_H
-/* Special invocation convention.  */
+/* Special invocation convention:
+   - On Haiku we have a sequence of nested includes
+       <fcntl.h> -> <unistd.h> -> <fcntl.h>
+     In this situation, GNULIB_defined_O_NONBLOCK gets defined before the
+     system's definition of O_NONBLOCK is processed.  */
 
 /* Needed before <sys/stat.h>.
    May also define off_t to a 64-bit type on native Windows.  */
@@ -50,6 +54,8 @@
 
 #ifndef _@GUARD_PREFIX@_FCNTL_H
 
+#define _@GUARD_PREFIX@_ALREADY_INCLUDING_FCNTL_H
+
 /* Needed before <sys/stat.h>.
    May also define off_t to a 64-bit type on native Windows.
    Also defines off64_t on macOS, NetBSD, OpenBSD, MSVC, Cygwin, Haiku.  */
@@ -72,6 +78,8 @@
 # include <io.h>
 #endif
 
+#undef _@GUARD_PREFIX@_ALREADY_INCLUDING_FCNTL_H
+
 #ifndef _@GUARD_PREFIX@_FCNTL_H
 #define _@GUARD_PREFIX@_FCNTL_H
 

lib/file-has-acl.c

@@ -50,7 +50,6 @@ static char const UNKNOWN_SECURITY_CONTEXT[] = "?";
 #  include <selinux/selinux.h>
 # endif
 # include <stdckdint.h>
-# include <stdint.h>
 # include <string.h>
 # include <arpa/inet.h>
 # include <sys/xattr.h>
@@ -363,6 +362,29 @@ acl_nfs4_nontrivial (uint32_t *xattr, ssize_t nbytes)
 }
 #endif
 
+#if (!USE_LINUX_XATTR && USE_ACL && HAVE_ACL_GET_FD \
+     && !HAVE_ACL_EXTENDED_FILE && !HAVE_ACL_TYPE_EXTENDED \
+     && !HAVE_ACL_GET_LINK_NP)
+# include <fcntl.h>
+# ifdef O_PATH
+
+/* Like acl_get_file, but do not follow symbolic links.  */
+static acl_t
+acl_get_link_np (char const *name, acl_type_t type)
+{
+  int fd = open (name, O_PATH | O_NOFOLLOW);
+  if (fd < 0)
+    return NULL;
+  acl_t r = acl_get_fd (fd);
+  int err = errno;
+  close (fd);
+  errno = err;
+  return r;
+}
+#  define HAVE_ACL_GET_LINK_NP 1
+# endif
+#endif
+
 /* Return 1 if NAME has a nontrivial access control list,
    0 if ACLs are not supported, or if NAME has no or only a base ACL,
    and -1 (setting errno) on error.  Note callers can determine
@@ -468,7 +490,7 @@ file_has_aclinfo (MAYBE_UNUSED char const *restrict name,
       ret = -1;
 #   else /* FreeBSD, NetBSD >= 10, IRIX, Tru64, Cygwin >= 2.5 */
     acl_t (*acl_get_file_or_link) (char const *, acl_type_t) = acl_get_file;
-#    if HAVE_ACL_GET_LINK_NP /* FreeBSD, NetBSD >= 10 */
+#    if HAVE_ACL_GET_LINK_NP /* FreeBSD, NetBSD >= 10, Cygwin >= 2.5 */
     if (! (flags & ACL_SYMLINK_FOLLOW))
       acl_get_file_or_link = acl_get_link_np;
 #    endif

lib/fpending.c

@@ -26,7 +26,7 @@
 
 /* This file is not used on systems that already have the __fpending function,
    namely glibc >= 2.2, Solaris >= 7, UnixWare >= 7.1.4.MP4, Cygwin >= 1.7.34,
-   Android API >= 23.  */
+   Android API >= 23, musl libc, Haiku >= hrev58760.  */
 
 /* Return the number of pending (aka buffered, unflushed)
    bytes on the stream, FP, that is open for writing.  */

lib/getloadavg.c

@@ -47,8 +47,6 @@
    N_NAME_POINTER               The nlist n_name element is a pointer,
                                 not an array.
    HAVE_STRUCT_NLIST_N_UN_N_NAME 'n_un.n_name' is member of 'struct nlist'.
-   LINUX_LDAV_FILE              [__linux__, __ANDROID__, __CYGWIN__]: File
-                                containing load averages.
 
    Specific system predefines this file uses, aside from setting
    default values if not emacs:
@@ -65,8 +63,7 @@
    UMAX4_3
    VMS
    _WIN32                       Native Windows (possibly also defined on Cygwin)
-   __linux__, __ANDROID__       Linux: assumes /proc file system mounted.
+   __linux__, __ANDROID__       Linux: assumes sysinfo() call.
-                                Support from Michael K. Johnson.
    __CYGWIN__                   Cygwin emulates linux /proc/loadavg.
    __NetBSD__                   NetBSD: assumes /kern file system mounted.
 
@@ -108,10 +105,10 @@
 # endif
 
 /* Same issues as for NeXT apply to the HURD-based GNU system.  */
-# ifdef __GNU__
+# if defined __gnu_hurd__ || defined NeXT
 #  undef BSD
 #  undef FSCALE
-# endif /* __GNU__ */
+# endif /* __gnu_hurd__ || NeXT */
 
 /* Set values that are different from the defaults, which are
    set a little farther down with #ifndef.  */
@@ -312,8 +309,7 @@
 #  endif
 # endif
 
-# if defined (__GNU__) && !defined (NeXT)
+# if defined __gnu_hurd__ && !defined NeXT
-/* Note that NeXT Openstep defines __GNU__ even though it should not.  */
 /* GNU system acts much like NeXT, for load average purposes,
    but not exactly.  */
 #  define NeXT
@@ -358,6 +354,11 @@
 #  include <sys/dg_sys_info.h>
 # endif
 
+# if defined __linux__ || defined __ANDROID__
+#  include <sys/param.h>
+#  include <sys/sysinfo.h>
+# endif
+
 # if (defined __linux__ || defined __ANDROID__ \
       || defined __CYGWIN__ || defined SUNOS_5 \
       || (defined LOAD_AVE_TYPE && ! defined __VMS))
@@ -498,20 +499,33 @@ getloadavg (double loadavg[], int nelem)
   }
 # endif
 
-# if !defined (LDAV_DONE) && (defined __linux__ || defined __ANDROID__ || defined __CYGWIN__)
+# if !defined (LDAV_DONE) && (defined __linux__ || defined __ANDROID__) \
+  && (!defined __ANDROID__ || __ANDROID_API__ >= 13)
                                       /* Linux without glibc, Android, Cygwin */
 #  define LDAV_DONE
 #  undef LOAD_AVE_TYPE
 
-#  ifndef LINUX_LDAV_FILE
+  {
-#   define LINUX_LDAV_FILE "/proc/loadavg"
+    struct sysinfo info;
-#  endif
+    if (sysinfo (&info) < 0)
+      return -1;
+    loadavg[0] = info.loads[0] / (double)(1U << SI_LOAD_SHIFT);
+    loadavg[1] = info.loads[1] / (double)(1U << SI_LOAD_SHIFT);
+    loadavg[2] = info.loads[2] / (double)(1U << SI_LOAD_SHIFT);
+    elem = 3;
+  }
+# endif /* __linux__ || __ANDROID__ */
+
+# if !defined (LDAV_DONE) && defined __CYGWIN__
+                                      /* Cygwin */
+#  define LDAV_DONE
+#  undef LOAD_AVE_TYPE
 
   char ldavgbuf[3 * (INT_STRLEN_BOUND (int) + sizeof ".00 ")];
   char const *ptr = ldavgbuf;
   int fd, count, saved_errno;
 
-  fd = open (LINUX_LDAV_FILE, O_RDONLY | O_CLOEXEC);
+  fd = open ("/proc/loadavg", O_RDONLY | O_CLOEXEC);
   if (fd == -1)
     return -1;
   count = read (fd, ldavgbuf, sizeof ldavgbuf - 1);
@@ -554,7 +568,7 @@ getloadavg (double loadavg[], int nelem)
 
   return elem;
 
-# endif /* __linux__ || __ANDROID__ || __CYGWIN__ */
+# endif /* __CYGWIN__ */
 
 # if !defined (LDAV_DONE) && defined (__NetBSD__)          /* NetBSD < 0.9 */
 #  define LDAV_DONE

lib/getopt-pfx-ext.h

@@ -38,11 +38,9 @@
 # endif
 # undef getopt_long
 # undef getopt_long_only
-# undef option
 # undef _getopt_internal
 # define getopt_long __GETOPT_ID (getopt_long)
 # define getopt_long_only __GETOPT_ID (getopt_long_only)
-# define option __GETOPT_ID (option)
 # define _getopt_internal __GETOPT_ID (getopt_internal)
 
 /* The system's getopt.h may have already included getopt-ext.h to

lib/getopt.in.h

@@ -30,7 +30,12 @@
    <getopt.h>; our definitions will be present soon enough.  */
 #if @HAVE_GETOPT_H@
 # define _GL_SYSTEM_GETOPT
+/* Rename the system's 'struct option' to 'struct sys_option',
+   so that we don't have to rename ours to 'struct rpl_option'
+   (which would cause significant trouble in C++ mode).  */
+# define option sys_option
 # @INCLUDE_NEXT@ @NEXT_GETOPT_H@
+# undef option
 # undef _GL_SYSTEM_GETOPT
 #endif
 

lib/gnulib.mk.in

@@ -22,6 +22,7 @@
 # Generated by gnulib-tool.
 # Reproduce by:
 # gnulib-tool --import \
+#  --local-dir=./admin/gnulib-patches \
 #  --lib=libgnu \
 #  --source-base=lib \
 #  --m4-base=m4 \
@@ -49,6 +50,7 @@
 #  --avoid=iswxdigit \
 #  --avoid=langinfo-h \
 #  --avoid=libgmp-mpq \
+#  --avoid=locale-h \
 #  --avoid=localename-unsafe-limited \
 #  --avoid=lock \
 #  --avoid=mbrtowc \
@@ -624,6 +626,7 @@ GL_GNULIB_STRCHRNUL = @GL_GNULIB_STRCHRNUL@
 GL_GNULIB_STRDUP = @GL_GNULIB_STRDUP@
 GL_GNULIB_STRERROR = @GL_GNULIB_STRERROR@
 GL_GNULIB_STRERRORNAME_NP = @GL_GNULIB_STRERRORNAME_NP@
+GL_GNULIB_STRERROR_L = @GL_GNULIB_STRERROR_L@
 GL_GNULIB_STRERROR_R = @GL_GNULIB_STRERROR_R@
 GL_GNULIB_STRFTIME = @GL_GNULIB_STRFTIME@
 GL_GNULIB_STRNCAT = @GL_GNULIB_STRNCAT@
@@ -916,6 +919,7 @@ HAVE_STR2SIG = @HAVE_STR2SIG@
 HAVE_STRCASESTR = @HAVE_STRCASESTR@
 HAVE_STRCHRNUL = @HAVE_STRCHRNUL@
 HAVE_STRERRORNAME_NP = @HAVE_STRERRORNAME_NP@
+HAVE_STRERROR_L = @HAVE_STRERROR_L@
 HAVE_STRPBRK = @HAVE_STRPBRK@
 HAVE_STRPTIME = @HAVE_STRPTIME@
 HAVE_STRSEP = @HAVE_STRSEP@
@@ -1213,6 +1217,7 @@ REPLACE_GETENTROPY = @REPLACE_GETENTROPY@
 REPLACE_GETGROUPS = @REPLACE_GETGROUPS@
 REPLACE_GETLINE = @REPLACE_GETLINE@
 REPLACE_GETLOADAVG = @REPLACE_GETLOADAVG@
+REPLACE_GETLOGIN = @REPLACE_GETLOGIN@
 REPLACE_GETLOGIN_R = @REPLACE_GETLOGIN_R@
 REPLACE_GETPAGESIZE = @REPLACE_GETPAGESIZE@
 REPLACE_GETPASS = @REPLACE_GETPASS@
@@ -1307,6 +1312,7 @@ REPLACE_STRCHRNUL = @REPLACE_STRCHRNUL@
 REPLACE_STRDUP = @REPLACE_STRDUP@
 REPLACE_STRERROR = @REPLACE_STRERROR@
 REPLACE_STRERRORNAME_NP = @REPLACE_STRERRORNAME_NP@
+REPLACE_STRERROR_L = @REPLACE_STRERROR_L@
 REPLACE_STRERROR_R = @REPLACE_STRERROR_R@
 REPLACE_STRFTIME = @REPLACE_STRFTIME@
 REPLACE_STRNCAT = @REPLACE_STRNCAT@
@@ -1543,6 +1549,7 @@ sharedstatedir = @sharedstatedir@
 srcdir = @srcdir@
 standardlisppath = @standardlisppath@
 sysconfdir = @sysconfdir@
+systemduserunitdir = @systemduserunitdir@
 target_alias = @target_alias@
 version = @version@
 with_mailutils = @with_mailutils@
@@ -1715,13 +1722,25 @@ libgnu_a_SOURCES += c-ctype.h c-ctype.c
 endif
 ## end   gnulib module c-ctype
 
-## begin gnulib module c-strcase
+## begin gnulib module c-strcasecmp
-ifeq (,$(OMIT_GNULIB_MODULE_c-strcase))
+ifeq (,$(OMIT_GNULIB_MODULE_c-strcasecmp))
 
-libgnu_a_SOURCES += c-strcase.h c-strcasecmp.c c-strncasecmp.c
+libgnu_a_SOURCES += c-strcasecmp.c
+
+EXTRA_DIST += c-strcase.h
 
 endif
-## end   gnulib module c-strcase
+## end   gnulib module c-strcasecmp
+
+## begin gnulib module c-strncasecmp
+ifeq (,$(OMIT_GNULIB_MODULE_c-strncasecmp))
+
+libgnu_a_SOURCES += c-strncasecmp.c
+
+EXTRA_DIST += c-strcase.h
+
+endif
+## end   gnulib module c-strncasecmp
 
 ## begin gnulib module canonicalize-lgpl
 ifeq (,$(OMIT_GNULIB_MODULE_canonicalize-lgpl))
@@ -3681,6 +3700,7 @@ string.h: string.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(ARG_NONNULL_H
 	      -e 's/@''GNULIB_STR_STARTSWITH''@/$(GL_GNULIB_STR_STARTSWITH)/g' \
 	      -e 's/@''GNULIB_STRERROR''@/$(GL_GNULIB_STRERROR)/g' \
 	      -e 's/@''GNULIB_STRERROR_R''@/$(GL_GNULIB_STRERROR_R)/g' \
+	      -e 's/@''GNULIB_STRERROR_L''@/$(GL_GNULIB_STRERROR_L)/g' \
 	      -e 's/@''GNULIB_STRERRORNAME_NP''@/$(GL_GNULIB_STRERRORNAME_NP)/g' \
 	      -e 's/@''GNULIB_SIGABBREV_NP''@/$(GL_GNULIB_SIGABBREV_NP)/g' \
 	      -e 's/@''GNULIB_SIGDESCR_NP''@/$(GL_GNULIB_SIGDESCR_NP)/g' \
@@ -3711,6 +3731,7 @@ string.h: string.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(ARG_NONNULL_H
 	      -e 's|@''HAVE_STRCASESTR''@|$(HAVE_STRCASESTR)|g' \
 	      -e 's|@''HAVE_DECL_STRTOK_R''@|$(HAVE_DECL_STRTOK_R)|g' \
 	      -e 's|@''HAVE_DECL_STRERROR_R''@|$(HAVE_DECL_STRERROR_R)|g' \
+	      -e 's|@''HAVE_STRERROR_L''@|$(HAVE_STRERROR_L)|g' \
 	      -e 's|@''HAVE_STRERRORNAME_NP''@|$(HAVE_STRERRORNAME_NP)|g' \
 	      -e 's|@''HAVE_SIGABBREV_NP''@|$(HAVE_SIGABBREV_NP)|g' \
 	      -e 's|@''HAVE_SIGDESCR_NP''@|$(HAVE_SIGDESCR_NP)|g' \
@@ -3734,6 +3755,7 @@ string.h: string.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(ARG_NONNULL_H
 	      -e 's|@''REPLACE_STRTOK_R''@|$(REPLACE_STRTOK_R)|g' \
 	      -e 's|@''REPLACE_STRERROR''@|$(REPLACE_STRERROR)|g' \
 	      -e 's|@''REPLACE_STRERROR_R''@|$(REPLACE_STRERROR_R)|g' \
+	      -e 's|@''REPLACE_STRERROR_L''@|$(REPLACE_STRERROR_L)|g' \
 	      -e 's|@''REPLACE_STRERRORNAME_NP''@|$(REPLACE_STRERRORNAME_NP)|g' \
 	      -e 's|@''REPLACE_STRSIGNAL''@|$(REPLACE_STRSIGNAL)|g' \
 	      -e 's|@''REPLACE_STRVERSCMP''@|$(REPLACE_STRVERSCMP)|g' \
@@ -4328,6 +4350,7 @@ unistd.h: unistd.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(ARG_NONNULL_H
 	      -e 's|@''REPLACE_GETDOMAINNAME''@|$(REPLACE_GETDOMAINNAME)|g' \
 	      -e 's|@''REPLACE_GETDTABLESIZE''@|$(REPLACE_GETDTABLESIZE)|g' \
 	      -e 's|@''REPLACE_GETENTROPY''@|$(REPLACE_GETENTROPY)|g' \
+	      -e 's|@''REPLACE_GETLOGIN''@|$(REPLACE_GETLOGIN)|g' \
 	      -e 's|@''REPLACE_GETLOGIN_R''@|$(REPLACE_GETLOGIN_R)|g' \
 	      -e 's|@''REPLACE_GETGROUPS''@|$(REPLACE_GETGROUPS)|g' \
 	      -e 's|@''REPLACE_GETPAGESIZE''@|$(REPLACE_GETPAGESIZE)|g' \

lib/intprops.h

@@ -39,7 +39,7 @@
    then 'switch (INT_PROMOTE (E))' pacifies gcc -Wswitch-enum if some
    enum values are deliberately omitted from the switch's cases.
    Here, unary + is safer than a cast or inline function, as unary +
-   does only integer promotions.  */
+   does only integer promotions and is disallowed on pointers.  */
 #define INT_PROMOTE(e) (+ (e))
 
 

lib/nproc.c

@@ -398,20 +398,16 @@ parse_omp_threads (char const* threads)
   /* Convert it from positive decimal to 'unsigned long'.  */
   if (c_isdigit (*threads))
     {
-      char *endptr = NULL;
+      char *endptr;
       unsigned long int value = strtoul (threads, &endptr, 10);
-
+      while (*endptr != '\0' && c_isspace (*endptr))
-      if (endptr != NULL)
+        endptr++;
-        {
+      if (*endptr == '\0')
-          while (*endptr != '\0' && c_isspace (*endptr))
+        return value;
-            endptr++;
+      /* Also accept the first value in a nesting level,
-          if (*endptr == '\0')
+         since we can't determine the nesting level from env vars.  */
-            return value;
+      else if (*endptr == ',')
-          /* Also accept the first value in a nesting level,
+        return value;
-             since we can't determine the nesting level from env vars.  */
-          else if (*endptr == ',')
-            return value;
-        }
     }
 
   return ret;
@@ -438,6 +434,9 @@ num_processors (enum nproc_query query)
       query = NPROC_CURRENT;
     }
   /* Here query is one of NPROC_ALL, NPROC_CURRENT.  */
+  if (omp_env_limit == 1)
+    /* No need to even call num_processors_ignoring_omp (query).  */
+    return 1;
   {
     unsigned long nprocs = num_processors_ignoring_omp (query);
     return MIN (nprocs, omp_env_limit);

lib/readutmp.h

@@ -45,7 +45,7 @@
 # include <utmp.h>
 #endif
 
-/* Needed for BOOT_TIME and USER_PROCESS.  */
+/* Needed for BOOT_TIME, USER_PROCESS, LOGIN_PROCESS.  */
 #if HAVE_UTMPX_H
 # if defined _THREAD_SAFE && defined UTMP_DATA_INIT
     /* When including both utmp.h and utmpx.h on AIX 4.3, with _THREAD_SAFE
@@ -74,7 +74,8 @@ struct gl_utmp
   struct timespec ut_ts;        /* time */
   pid_t ut_pid;                 /* process ID of ? */
   pid_t ut_session;             /* process ID of session leader */
-  short ut_type;                /* BOOT_TIME, USER_PROCESS, or other */
+  short ut_type;                /* BOOT_TIME, USER_PROCESS, LOGIN_PROCESS,
+                                   or other */
   struct { int e_termination; int e_exit; } ut_exit;
 };
 
@@ -257,19 +258,21 @@ struct utmpx32
 # define WTMP_FILE "/etc/wtmp"
 #endif
 
-/* In early versions of Android, <utmp.h> did not define BOOT_TIME, only
+/* In early versions of Android, <utmp.h> did not define BOOT_TIME or
-   USER_PROCESS.  We need to use the value that is defined in newer versions
+   LOGIN_PROCESS, only USER_PROCESS.  We need to use the value that is defined
-   of Android.  */
+   in newer versions of Android.  */
 #if defined __ANDROID__ && !defined BOOT_TIME
 # define BOOT_TIME 2
+# define LOGIN_PROCESS 6
 #endif
 
 /* Some platforms, such as OpenBSD, don't have an ut_type field and don't have
-   the BOOT_TIME and USER_PROCESS macros.  But we want to support them in
+   the BOOT_TIME, USER_PROCESS, and LOGIN_PROCESS macros.  But we want to
-   'struct gl_utmp'.  */
+   support them in 'struct gl_utmp'.  */
 #if !(HAVE_UTMPX_H ? HAVE_STRUCT_UTMPX_UT_TYPE : HAVE_STRUCT_UTMP_UT_TYPE)
 # define BOOT_TIME 2
 # define USER_PROCESS 0
+# define LOGIN_PROCESS 6
 #endif
 
 /* Macros that test (UT)->ut_type.  */
@@ -283,6 +286,11 @@ struct utmpx32
 #else
 # define UT_TYPE_USER_PROCESS(UT) 0
 #endif
+#ifdef LOGIN_PROCESS
+# define UT_TYPE_LOGIN_PROCESS(UT) ((UT)->ut_type == LOGIN_PROCESS)
+#else
+# define UT_TYPE_LOGIN_PROCESS(UT) 0
+#endif
 
 /* Determines whether an entry *UT corresponds to a user process.  */
 #define IS_USER_PROCESS(UT)                                    \

lib/regcomp.c

@@ -831,7 +831,7 @@ init_dfa (re_dfa_t *dfa, size_t pat_len)
     if (table_size > pat_len)
       break;
 
-  dfa->state_table = calloc (sizeof (struct re_state_table_entry), table_size);
+  dfa->state_table = calloc (table_size, sizeof (struct re_state_table_entry));
   dfa->state_hash_mask = table_size - 1;
 
   dfa->mb_cur_max = MB_CUR_MAX;
@@ -862,7 +862,7 @@ init_dfa (re_dfa_t *dfa, size_t pat_len)
 	{
 	  int i, j, ch;
 
-	  dfa->sb_char = (re_bitset_ptr_t) calloc (sizeof (bitset_t), 1);
+	  dfa->sb_char = (re_bitset_ptr_t) calloc (1, sizeof (bitset_t));
 	  if (__glibc_unlikely (dfa->sb_char == NULL))
 	    return REG_ESPACE;
 
@@ -3055,8 +3055,8 @@ parse_bracket_exp (re_string_t *regexp, re_dfa_t *dfa, re_token_t *token,
 						   _NL_COLLATE_SYMB_EXTRAMB);
     }
 #endif
-  sbcset = (re_bitset_ptr_t) calloc (sizeof (bitset_t), 1);
+  sbcset = (re_bitset_ptr_t) calloc (1, sizeof (bitset_t));
-  mbcset = (re_charset_t *) calloc (sizeof (re_charset_t), 1);
+  mbcset = (re_charset_t *) calloc (1, sizeof (re_charset_t));
   if (__glibc_unlikely (sbcset == NULL || mbcset == NULL))
     {
       re_free (sbcset);
@@ -3548,13 +3548,13 @@ build_charclass_op (re_dfa_t *dfa, RE_TRANSLATE_TYPE trans,
   reg_errcode_t ret;
   bin_tree_t *tree;
 
-  sbcset = (re_bitset_ptr_t) calloc (sizeof (bitset_t), 1);
+  sbcset = (re_bitset_ptr_t) calloc (1, sizeof (bitset_t));
   if (__glibc_unlikely (sbcset == NULL))
     {
       *err = REG_ESPACE;
       return NULL;
     }
-  mbcset = (re_charset_t *) calloc (sizeof (re_charset_t), 1);
+  mbcset = (re_charset_t *) calloc (1, sizeof (re_charset_t));
   if (__glibc_unlikely (mbcset == NULL))
     {
       re_free (sbcset);

lib/regex.h

@@ -66,15 +66,14 @@ typedef unsigned long int active_reg_t;
 
 /* The following bits are used to determine the regexp syntax we
    recognize.  The set/not-set meanings are chosen so that Emacs syntax
-   remains the value 0.  The bits are given in alphabetical order, and
+   is the value 0 for Emacs 20 (2000) and earlier, and the value
-   the definitions shifted by one from the previous bit; thus, when we
+   RE_SYNTAX_EMACS for Emacs 21 (2001) and later.  */
-   add or remove a bit, only one other definition need change.  */
 typedef unsigned long int reg_syntax_t;
 
 #ifdef __USE_GNU
 /* If this bit is not set, then \ inside a bracket expression is literal.
    If set, then such a \ quotes the following character.  */
-# define RE_BACKSLASH_ESCAPE_IN_LISTS ((unsigned long int) 1)
+# define RE_BACKSLASH_ESCAPE_IN_LISTS 1ul
 
 /* If this bit is not set, then + and ? are operators, and \+ and \? are
      literals.
@@ -215,7 +214,8 @@ extern reg_syntax_t re_syntax_options;
    (The [[[ comments delimit what gets put into the Texinfo file, so
    don't delete them!)  */
 /* [[[begin syntaxes]]] */
-# define RE_SYNTAX_EMACS 0
+# define RE_SYNTAX_EMACS						\
+  (RE_CHAR_CLASSES | RE_INTERVALS)
 
 # define RE_SYNTAX_AWK							\
   (RE_BACKSLASH_ESCAPE_IN_LISTS   | RE_DOT_NOT_NULL			\
@@ -522,20 +522,6 @@ typedef struct
 
 /* Declarations for routines.  */
 
-#ifndef _REGEX_NELTS
-# if (defined __STDC_VERSION__ && 199901L <= __STDC_VERSION__ \
-	&& !defined __STDC_NO_VLA__)
-#  define _REGEX_NELTS(n) n
-# else
-#  define _REGEX_NELTS(n)
-# endif
-#endif
-
-#if defined __GNUC__ && 4 < __GNUC__ + (6 <= __GNUC_MINOR__)
-# pragma GCC diagnostic push
-# pragma GCC diagnostic ignored "-Wvla"
-#endif
-
 #ifndef _Attr_access_
 # ifdef __attr_access
 #  define _Attr_access_(arg) __attr_access (arg)
@@ -682,8 +668,7 @@ extern int regcomp (regex_t *_Restrict_ __preg,
 
 extern int regexec (const regex_t *_Restrict_ __preg,
 		    const char *_Restrict_ __String, size_t __nmatch,
-		    regmatch_t __pmatch[_Restrict_arr_
+		    regmatch_t __pmatch[_Restrict_arr_],
-					_REGEX_NELTS (__nmatch)],
 		    int __eflags);
 
 extern size_t regerror (int __errcode, const regex_t *_Restrict_ __preg,
@@ -692,10 +677,6 @@ extern size_t regerror (int __errcode, const regex_t *_Restrict_ __preg,
 
 extern void regfree (regex_t *__preg);
 
-#if defined __GNUC__ && 4 < __GNUC__ + (6 <= __GNUC_MINOR__)
-# pragma GCC diagnostic pop
-#endif
-
 #ifdef __cplusplus
 }
 #endif	/* C++ */

lib/regex_internal.c

@@ -1595,7 +1595,7 @@ create_ci_newstate (const re_dfa_t *dfa, const re_node_set *nodes,
   reg_errcode_t err;
   re_dfastate_t *newstate;
 
-  newstate = (re_dfastate_t *) calloc (sizeof (re_dfastate_t), 1);
+  newstate = (re_dfastate_t *) calloc (1, sizeof (re_dfastate_t));
   if (__glibc_unlikely (newstate == NULL))
     return NULL;
   err = re_node_set_init_copy (&newstate->nodes, nodes);
@@ -1643,7 +1643,7 @@ create_cd_newstate (const re_dfa_t *dfa, const re_node_set *nodes,
   reg_errcode_t err;
   re_dfastate_t *newstate;
 
-  newstate = (re_dfastate_t *) calloc (sizeof (re_dfastate_t), 1);
+  newstate = (re_dfastate_t *) calloc (1, sizeof (re_dfastate_t));
   if (__glibc_unlikely (newstate == NULL))
     return NULL;
   err = re_node_set_init_copy (&newstate->nodes, nodes);

lib/regexec.c

@@ -185,7 +185,7 @@ static reg_errcode_t extend_buffers (re_match_context_t *mctx, int min_len);
 
 int
 regexec (const regex_t *__restrict preg, const char *__restrict string,
-	 size_t nmatch, regmatch_t pmatch[_REGEX_NELTS (nmatch)], int eflags)
+	 size_t nmatch, regmatch_t pmatch[], int eflags)
 {
   reg_errcode_t err;
   Idx start, length;
@@ -229,7 +229,7 @@ int
 attribute_compat_text_section
 __compat_regexec (const regex_t *__restrict preg,
 		  const char *__restrict string, size_t nmatch,
-		  regmatch_t pmatch[_REGEX_NELTS (nmatch)], int eflags)
+		  regmatch_t pmatch[], int eflags)
 {
   return regexec (preg, string, nmatch, pmatch,
 		  eflags & (REG_NOTBOL | REG_NOTEOL));
@@ -2721,8 +2721,8 @@ get_subexp (re_match_context_t *mctx, Idx bkref_node, Idx bkref_str_idx)
 	    continue; /* No.  */
 	  if (sub_top->path == NULL)
 	    {
-	      sub_top->path = calloc (sizeof (state_array_t),
+	      sub_top->path = calloc (sl_str - sub_top->str_idx + 1,
-				      sl_str - sub_top->str_idx + 1);
+                                      sizeof (state_array_t));
 	      if (sub_top->path == NULL)
 		return REG_ESPACE;
 	    }
@@ -3266,7 +3266,7 @@ build_trtable (const re_dfa_t *dfa, re_dfastate_t *state)
       if (ndests == 0)
 	{
 	  state->trtable = (re_dfastate_t **)
-	    calloc (sizeof (re_dfastate_t *), SBC_MAX);
+	    calloc (SBC_MAX, sizeof (re_dfastate_t *));
           if (__glibc_unlikely (state->trtable == NULL))
             return false;
 	  return true;
@@ -3338,7 +3338,7 @@ build_trtable (const re_dfa_t *dfa, re_dfastate_t *state)
 	 discern by looking at the character code: allocate a
 	 256-entry transition table.  */
       trtable = state->trtable =
-	(re_dfastate_t **) calloc (sizeof (re_dfastate_t *), SBC_MAX);
+	(re_dfastate_t **) calloc (SBC_MAX, sizeof (re_dfastate_t *));
       if (__glibc_unlikely (trtable == NULL))
 	goto out_free;
 
@@ -3369,7 +3369,7 @@ build_trtable (const re_dfa_t *dfa, re_dfastate_t *state)
 	 transition tables, one starting at trtable[0] and one
 	 starting at trtable[SBC_MAX].  */
       trtable = state->word_trtable =
-	(re_dfastate_t **) calloc (sizeof (re_dfastate_t *), 2 * SBC_MAX);
+	(re_dfastate_t **) calloc (2 * SBC_MAX, sizeof (re_dfastate_t *));
       if (__glibc_unlikely (trtable == NULL))
 	goto out_free;
 

lib/stdio-impl.h

@@ -30,6 +30,49 @@
 # endif
 #endif
 
+/* Haiku stdio implementation.  */
+#if defined __HAIKU__
+# include <stdint.h>
+/* This FILE structure was made into an incomplete type in 2025.
+   See <https://cgit.haiku-os.org/haiku/tree/src/system/libroot/posix/glibc/libio/libio.h>.  */
+#  define fp_ ((struct { int _flags; \
+                         char *_IO_read_ptr; \
+                         char *_IO_read_end; \
+                         char *_IO_read_base; \
+                         char *_IO_write_base; \
+                         char *_IO_write_ptr; \
+                         char *_IO_write_end; \
+                         char *_IO_buf_base; \
+                         char *_IO_buf_end; \
+                         char *_IO_save_base; \
+                         char *_IO_backup_base; \
+                         char *_IO_save_end; \
+                         void *_markers; \
+                         void *_chain; \
+                         int _fileno; \
+                         int _flags2; \
+                         off_t _old_offset; \
+                         unsigned short _cur_column; \
+                         signed char _vtable_offset; \
+                         char _shortbuf[1]; \
+                         void *_lock; \
+                         int64_t _offset; \
+                         /* More fields, not relevant here.  */ \
+                       } *) fp)
+# if !defined _IO_UNBUFFERED
+#  define _IO_UNBUFFERED 0x2
+# endif
+# if !defined _IO_EOF_SEEN
+#  define _IO_EOF_SEEN 0x10
+# endif
+# if !defined _IO_IN_BACKUP
+#  define _IO_IN_BACKUP 0x100
+# endif
+# if !defined _IO_LINE_BUF
+#  define _IO_LINE_BUF 0x200
+# endif
+#endif
+
 /* BSD stdio derived implementations.  */
 
 #if defined __NetBSD__                         /* NetBSD */

lib/stdlib.in.h

@@ -63,7 +63,7 @@
 #include <stddef.h>
 
 /* MirBSD 10 defines WEXITSTATUS in <sys/wait.h>, not in <stdlib.h>.
-   glibc 2.40 defines WCOREDUMP in <sys/wait.h>, not in <stdlib.h>.  */
+   glibc 2.41 defines WCOREDUMP in <sys/wait.h>, not in <stdlib.h>.  */
 #if @GNULIB_SYSTEM_POSIX@ && !(defined WEXITSTATUS && defined WCOREDUMP)
 # include <sys/wait.h>
 #endif
@@ -120,14 +120,14 @@ struct random_data
 # include <unistd.h>
 #endif
 
-#if ((@GNULIB_STRTOL@ && @REPLACE_STRTOL@) || (@GNULIB_STRTOLL@ && @REPLACE_STRTOLL@) || (@GNULIB_STRTOUL@ && @REPLACE_STRTOUL@) || (@GNULIB_STRTOULL@ && @REPLACE_STRTOULL@)) && defined __cplusplus && !defined GNULIB_NAMESPACE && defined __GNUG__ && !defined __clang__ && defined __sun
+#if ((@GNULIB_STRTOL@ && @REPLACE_STRTOL@) || (@GNULIB_STRTOLL@ && @REPLACE_STRTOLL@) || (@GNULIB_STRTOUL@ && @REPLACE_STRTOUL@) || (@GNULIB_STRTOULL@ && @REPLACE_STRTOULL@)) && defined __cplusplus && !defined GNULIB_NAMESPACE && defined __GNUG__ && !defined __clang__ && (defined __sun || defined _AIX)
 /* When strtol, strtoll, strtoul, or strtoull is going to be defined as a macro
    below, this may cause compilation errors later in the libstdc++ header files
    (that are part of GCC), such as:
      error: 'rpl_strtol' is not a member of 'std'
    To avoid this, include the relevant header files here, before these symbols
-   get defined as macros.  But do so only on Solaris 11 (where it is needed),
+   get defined as macros.  But do so only on Solaris 11 and AIX (where it is
-   not on mingw (where it would cause other compilation errors).  */
+   needed), not on mingw (where it would cause other compilation errors).  */
 # include <string>
 #endif
 
@@ -1473,11 +1473,17 @@ _GL_WARN_ON_USE (setstate_r, "setstate_r is unportable - "
 # if @REPLACE_REALLOC_FOR_REALLOC_POSIX@
 #  if @REPLACE_REALLOC_FOR_REALLOC_POSIX@ == 2
 #   define _GL_INLINE_RPL_REALLOC 1
+#   ifdef __cplusplus
+extern "C" {
+#   endif
 _GL_REALLOC_INLINE void *
 rpl_realloc (void *ptr, size_t size)
 {
   return realloc (ptr, size ? size : 1);
 }
+#   ifdef __cplusplus
+}
+#   endif
 #  endif
 #  if !((defined __cplusplus && defined GNULIB_NAMESPACE) \
         || _GL_USE_STDLIB_ALLOC)

lib/string.in.h

@@ -54,6 +54,11 @@
 /* NetBSD 5.0 mis-defines NULL.  */
 #include <stddef.h>
 
+#if @GNULIB_STRERROR_L@
+/* Get locale_t.  */
+# include <locale.h>
+#endif
+
 /* MirBSD defines mbslen as a macro.  */
 #if @GNULIB_MBSLEN@ && defined __MirBSD__
 # include <wchar.h>
@@ -429,7 +434,9 @@ _GL_FUNCDECL_SYS (memset_explicit, void *,
 #  endif
 _GL_CXXALIAS_SYS (memset_explicit, void *, (void *__dest, int __c, size_t __n));
 # endif
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (memset_explicit);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef memset_explicit
 # if HAVE_RAW_DECL_MEMSET_EXPLICIT
@@ -1178,6 +1185,33 @@ _GL_CXXALIASWARN (mbsrchr);
 _GL_EXTERN_C char * mbsstr (const char *haystack, const char *needle)
      _GL_ATTRIBUTE_PURE
      _GL_ARG_NONNULL ((1, 2));
+# ifndef _GL_NO_CONST_GENERICS
+/* Don't silently convert a 'const char *' to a 'char *'.  Programmers want
+   compiler warnings for 'const' related mistakes.  */
+#  ifdef __cplusplus
+extern "C++" { /* needed for AIX */
+template <typename T>
+  T * mbsstr_template (T* haystack, const char *needle);
+template <>
+  inline char * mbsstr_template (char *haystack, const char *needle)
+  { return mbsstr (haystack, needle); }
+template <>
+  inline const char * mbsstr_template (const char *haystack, const char *needle)
+  { return mbsstr (haystack, needle); }
+}
+#   undef mbsstr
+#   define mbsstr mbsstr_template
+#  elif !defined mbsstr
+#   if ((__GNUC__ + (__GNUC_MINOR__ >= 9) > 4) || (__clang_major__ >= 3) \
+        || defined __ICC  || defined __TINYC__ \
+        || (__STDC_VERSION__ >= 201112L && !(defined __GNUC__ || defined __clang__)))
+#    define mbsstr(h,n) \
+       _Generic ((h), \
+                 char const *: (char const *) mbsstr ((h), (n)), \
+                 default     :                mbsstr ((h), (n)))
+#   endif
+#  endif
+# endif
 #endif
 
 #if @GNULIB_MBSCASECMP@
@@ -1219,6 +1253,33 @@ _GL_EXTERN_C int mbsncasecmp (const char *s1, const char *s2, size_t n)
 _GL_EXTERN_C char * mbspcasecmp (const char *string, const char *prefix)
      _GL_ATTRIBUTE_PURE
      _GL_ARG_NONNULL ((1, 2));
+# ifndef _GL_NO_CONST_GENERICS
+/* Don't silently convert a 'const char *' to a 'char *'.  Programmers want
+   compiler warnings for 'const' related mistakes.  */
+#  ifdef __cplusplus
+extern "C++" { /* needed for AIX */
+template <typename T>
+  T * mbspcasecmp_template (T* string, const char *prefix);
+template <>
+  inline char * mbspcasecmp_template (char *string, const char *prefix)
+  { return mbspcasecmp (string, prefix); }
+template <>
+  inline const char * mbspcasecmp_template (const char *string, const char *prefix)
+  { return mbspcasecmp (string, prefix); }
+}
+#   undef mbspcasecmp
+#   define mbspcasecmp mbspcasecmp_template
+#  elif !defined mbspcasecmp
+#   if ((__GNUC__ + (__GNUC_MINOR__ >= 9) > 4) || (__clang_major__ >= 3) \
+        || defined __ICC  || defined __TINYC__ \
+        || (__STDC_VERSION__ >= 201112L && !(defined __GNUC__ || defined __clang__)))
+#    define mbspcasecmp(s,p) \
+       _Generic ((s), \
+                 char const *: (char const *) mbspcasecmp ((s), (p)), \
+                 default     :                mbspcasecmp ((s), (p)))
+#   endif
+#  endif
+# endif
 #endif
 
 #if @GNULIB_MBSCASESTR@
@@ -1230,6 +1291,33 @@ _GL_EXTERN_C char * mbspcasecmp (const char *string, const char *prefix)
 _GL_EXTERN_C char * mbscasestr (const char *haystack, const char *needle)
      _GL_ATTRIBUTE_PURE
      _GL_ARG_NONNULL ((1, 2));
+# ifndef _GL_NO_CONST_GENERICS
+/* Don't silently convert a 'const char *' to a 'char *'.  Programmers want
+   compiler warnings for 'const' related mistakes.  */
+#  ifdef __cplusplus
+extern "C++" { /* needed for AIX */
+template <typename T>
+  T * mbscasestr_template (T* haystack, const char *needle);
+template <>
+  inline char * mbscasestr_template (char *haystack, const char *needle)
+  { return mbscasestr (haystack, needle); }
+template <>
+  inline const char * mbscasestr_template (const char *haystack, const char *needle)
+  { return mbscasestr (haystack, needle); }
+}
+#   undef mbscasestr
+#   define mbscasestr mbscasestr_template
+#  elif !defined mbscasestr
+#   if ((__GNUC__ + (__GNUC_MINOR__ >= 9) > 4) || (__clang_major__ >= 3) \
+        || defined __ICC  || defined __TINYC__ \
+        || (__STDC_VERSION__ >= 201112L && !(defined __GNUC__ || defined __clang__)))
+#    define mbscasestr(h,n) \
+       _Generic ((h), \
+                 char const *: (char const *) mbscasestr ((h), (n)), \
+                 default     :                mbscasestr ((h), (n)))
+#   endif
+#  endif
+# endif
 #endif
 
 #if @GNULIB_MBSCSPN@
@@ -1388,6 +1476,44 @@ _GL_WARN_ON_USE (strerror_r, "strerror_r is unportable - "
 # endif
 #endif
 
+/* Map any int, typically from errno, into an error message.
+   With locale_t argument.  */
+#if @GNULIB_STRERROR_L@
+# if @REPLACE_STRERROR_L@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef strerror_l
+#   define strerror_l rpl_strerror_l
+#  endif
+_GL_FUNCDECL_RPL (strerror_l, char *, (int errnum, locale_t locale),
+                                                   _GL_ARG_NONNULL ((2)));
+_GL_CXXALIAS_RPL (strerror_l, char *, (int errnum, locale_t locale));
+# else
+#  if !@HAVE_STRERROR_L@
+_GL_FUNCDECL_SYS (strerror_l, char *, (int errnum, locale_t locale),
+                                                   _GL_ARG_NONNULL ((2)));
+#  endif
+_GL_CXXALIAS_SYS (strerror_l, char *, (int errnum, locale_t locale));
+# endif
+# if __GLIBC__ >= 2
+_GL_CXXALIASWARN (strerror_l);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef strerror_l
+# if HAVE_RAW_DECL_STRERROR_L
+_GL_WARN_ON_USE (strerror_l, "strerror_l is unportable - "
+                 "use gnulib module strerror_l for portability");
+# endif
+#endif
+
+/* Map any int, typically from errno, into an error message.  Multithread-safe,
+   with locale_t argument.
+   Not portable! Only provided by gnulib.  */
+#if @GNULIB_STRERROR_L@
+_GL_FUNCDECL_SYS (strerror_l_r, int,
+                  (int errnum, char *buf, size_t buflen, locale_t locale),
+                  _GL_ARG_NONNULL ((2, 4)));
+#endif
+
 /* Return the name of the system error code ERRNUM.  */
 #if @GNULIB_STRERRORNAME_NP@
 # if @REPLACE_STRERRORNAME_NP@
@@ -1403,7 +1529,9 @@ _GL_FUNCDECL_SYS (strerrorname_np, const char *, (int errnum), );
 #  endif
 _GL_CXXALIAS_SYS (strerrorname_np, const char *, (int errnum));
 # endif
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (strerrorname_np);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef strerrorname_np
 # if HAVE_RAW_DECL_STRERRORNAME_NP

lib/time.in.h

@@ -186,7 +186,9 @@ _GL_FUNCDECL_SYS (timespec_getres, int, (struct timespec *ts, int base),
 #   endif
 _GL_CXXALIAS_SYS (timespec_getres, int, (struct timespec *ts, int base));
 #  endif
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (timespec_getres);
+# endif
 # elif defined GNULIB_POSIXCHECK
 #  undef timespec_getres
 #  if HAVE_RAW_DECL_TIMESPEC_GETRES

lib/unistd.in.h

@@ -95,12 +95,15 @@
 # include <stdio.h>
 #endif
 
+/* FreeBSD 14.0, NetBSD 10.0, OpenBSD 7.5, Solaris 11.4, and glibc 2.41
+   do not define O_CLOEXEC in <unistd.h>.  */
 /* Cygwin 1.7.1 and Android 4.3 declare unlinkat in <fcntl.h>, not in
    <unistd.h>.  */
 /* But avoid namespace pollution on glibc systems.  */
-#if (@GNULIB_UNLINKAT@ || defined GNULIB_POSIXCHECK) \
+#if ! defined O_CLOEXEC \
-    && (defined __CYGWIN__ || defined __ANDROID__) \
+    || ((@GNULIB_UNLINKAT@ || defined GNULIB_POSIXCHECK) \
-    && ! defined __GLIBC__
+         && (defined __CYGWIN__ || defined __ANDROID__) \
+         && ! defined __GLIBC__)
 # include <fcntl.h>
 #endif
 
@@ -463,7 +466,9 @@ _GL_CXXALIAS_SYS (copy_file_range, ssize_t, (int ifd, off_t *ipos,
                                              int ofd, off_t *opos,
                                              size_t len, unsigned flags));
 # endif
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (copy_file_range);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef copy_file_range
 # if HAVE_RAW_DECL_COPY_FILE_RANGE
@@ -1362,11 +1367,21 @@ _GL_WARN_ON_USE (gethostname, "gethostname is unportable - "
      ${LOGNAME-$USER}        on Unix platforms,
      $USERNAME               on native Windows platforms.
  */
-# if !@HAVE_DECL_GETLOGIN@
+# if @REPLACE_GETLOGIN@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   define getlogin rpl_getlogin
+#  endif
+_GL_FUNCDECL_RPL (getlogin, char *, (void), );
+_GL_CXXALIAS_RPL (getlogin, char *, (void));
+# else
+#  if !@HAVE_DECL_GETLOGIN@
 _GL_FUNCDECL_SYS (getlogin, char *, (void), );
-# endif
+#  endif
 _GL_CXXALIAS_SYS (getlogin, char *, (void));
+# endif
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (getlogin);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef getlogin
 # if HAVE_RAW_DECL_GETLOGIN
@@ -2405,7 +2420,7 @@ _GL_WARN_ON_USE (unlinkat, "unlinkat is not portable - "
 #if @GNULIB_USLEEP@
 /* Pause the execution of the current thread for N microseconds.
    Returns 0 on completion, or -1 on range error.
-   See the POSIX:2001 specification
+   See the POSIX.1-2004 specification
    <https://pubs.opengroup.org/onlinepubs/009695399/functions/usleep.html>.  */
 # if @REPLACE_USLEEP@
 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)

lib/utimens.h

@@ -25,7 +25,7 @@
 #include <time.h>
 
 #if HAVE_UTIMENS || HAVE_LUTIMENS
-# include <sys/time.h>
+# include <sys/stat.h>
 #endif
 
 #ifdef __cplusplus

lib/utimensat.c

@@ -136,8 +136,9 @@ rpl_utimensat (int fd, char const *file, struct timespec const times[2],
         }
 #   endif
 #  endif
-#  if defined __APPLE__ && defined __MACH__
+#  if (defined __APPLE__ && defined __MACH__) || defined __gnu_hurd__
-      /* macOS 10.13 does not reject invalid tv_nsec values either.  */
+      /* macOS 10.13 and GNU Hurd do not reject invalid tv_nsec values
+         either.  */
       if (times
           && ((times[0].tv_nsec != UTIME_OMIT
                && times[0].tv_nsec != UTIME_NOW
@@ -151,6 +152,7 @@ rpl_utimensat (int fd, char const *file, struct timespec const times[2],
           errno = EINVAL;
           return -1;
         }
+#   if defined __APPLE__ && defined __MACH__
       size_t len = strlen (file);
       if (len > 0 && file[len - 1] == '/')
         {
@@ -163,6 +165,7 @@ rpl_utimensat (int fd, char const *file, struct timespec const times[2],
               return -1;
             }
         }
+#   endif
 #  endif
       result = utimensat (fd, file, times, flag);
       /* Linux kernel 2.6.25 has a bug where it returns EINVAL for

lib/verify.h

@@ -157,9 +157,10 @@
 #define _GL_CONCAT0(x, y) x##y
 
 /* _GL_COUNTER is an integer, preferably one that changes each time we
-   use it.  Use __COUNTER__ if it works, falling back on __LINE__
+   use it.  Use __COUNTER__ if it works (it does so with most compilers,
-   otherwise.  __LINE__ isn't perfect, but it's better than a
+   see <https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3457.htm>),
-   constant.  */
+   falling back on __LINE__ otherwise.  __LINE__ isn't perfect, but it's
+   better than a constant.  */
 #if defined __COUNTER__ && __COUNTER__ != __COUNTER__
 # define _GL_COUNTER __COUNTER__
 #else

lisp/abbrev.el

@@ -42,7 +42,7 @@
 (defcustom abbrev-file-name
   (locate-user-emacs-file "abbrev_defs" ".abbrev_defs")
   "Default name of file from which to read and where to save abbrevs."
-  :initialize 'custom-initialize-delay
+  :initialize #'custom-initialize-delay
   :type 'file)
 
 (defcustom only-global-abbrevs nil
@@ -62,7 +62,7 @@ be replaced by its expansion."
   ;; defining it again.
   :variable abbrev-mode)
 
-(put 'abbrev-mode 'safe-local-variable 'booleanp)
+(put 'abbrev-mode 'safe-local-variable #'booleanp)
 
 
 (define-obsolete-variable-alias 'edit-abbrevs-map
@@ -225,7 +225,8 @@ about loading the abbrevs."
    (list
     (read-file-name (format-prompt "Read abbrev file" abbrev-file-name)
 		    nil abbrev-file-name t)))
-  (load (or file abbrev-file-name) nil quietly)
+  (let ((warning-inhibit-types '((files missing-lexbind-cookie))))
+    (load (or file abbrev-file-name) nil quietly))
   (setq abbrevs-changed nil))
 
 (defun quietly-read-abbrev-file (&optional file)
@@ -270,7 +271,8 @@ abbrevs have been saved."
       (when (unencodable-char-position (point-min) (point-max) 'utf-8)
 	(setq coding-system-for-write 'utf-8-emacs))
       (goto-char (point-min))
-      (insert (format ";;-*-coding: %s;-*-\n" coding-system-for-write))
+      (insert (format ";; -*- coding: %S; lexical-binding: t -*-\n"
+                      coding-system-for-write))
       (write-region nil nil file nil (and (not verbose) 0)))))
 
 (defun abbrev-edit-save-to-file (file)
@@ -494,13 +496,13 @@ A prefix argument means don't query; expand all abbrevs."
     (set sym nil)	     ; Make sure it won't be confused for an abbrev.
     (put sym prop val)))
 
-(defalias 'abbrev-get 'get
+(defalias 'abbrev-get #'get
   "Get the property PROP of abbrev ABBREV
 See `define-abbrev' for the effect of some special properties.
 
 \(fn ABBREV PROP)")
 
-(defalias 'abbrev-put 'put
+(defalias 'abbrev-put #'put
   "Set the property PROP of abbrev ABBREV to value VAL.
 See `define-abbrev' for the effect of some special properties.
 
@@ -573,8 +575,7 @@ This causes `save-some-buffers' to offer to save the abbrevs.")
 
 (defcustom abbrev-all-caps nil
   "Non-nil means expand multi-word abbrevs in all caps if the abbrev was so."
-  :type 'boolean
+  :type 'boolean)
-  :group 'abbrev-mode)
 
 (defvar abbrev-start-location nil
   "Buffer position for `expand-abbrev' to use as the start of the abbrev.
@@ -691,7 +692,7 @@ current (if global is nil) or standard syntax table."
           (cl-pushnew (aref abbrev (match-beginning 0)) badchars)
           (setq pos (1+ pos)))
         (error "Some abbrev characters (%s) are not word constituents %s"
-               (apply 'string (nreverse badchars))
+               (apply #'string (nreverse badchars))
                (if global "in the standard syntax" "in this mode"))))))
 
 (defun define-global-abbrev (abbrev expansion)
@@ -1096,8 +1097,7 @@ This differs from ordinary undo in that other editing done since then
 is not undone."
   (interactive)
   (save-excursion
-    (unless (or (< last-abbrev-location (point-min))
+    (when (<= (point-min) last-abbrev-location (point-max))
-                (> last-abbrev-location (point-max)))
       (goto-char last-abbrev-location)
       (when (stringp last-abbrev-text)
         ;; This isn't correct if last-abbrev's hook was used
@@ -1106,9 +1106,9 @@ is not undone."
           (unless (stringp val)
             (error "Value of abbrev-symbol must be a string"))
           ;; Don't inherit properties here; just copy from old contents.
-          (insert last-abbrev-text)
+          (replace-region-contents (point) (+ (point) (length val))
-          ;; Delete after inserting, to better preserve markers.
+                                   last-abbrev-text 0)
-          (delete-region (point) (+ (point) (length val)))
+          (goto-char (+ (point) (length last-abbrev-text)))
           (setq last-abbrev-text nil))))))
 
 (defun abbrev--write (sym)
@@ -1158,21 +1158,21 @@ a call to `define-abbrev-table' that, when evaluated, will define
 the abbrev table NAME exactly as it is currently defined.
 Abbrevs marked as \"system abbrevs\" are ignored."
   (let ((symbols (abbrev--table-symbols name readable)))
-    (setq symbols (sort symbols 'string-lessp))
+    (setq symbols (sort symbols #'string-lessp))
     (let ((standard-output (current-buffer)))
       (if readable
           (progn
             (insert "(")
             (prin1 name)
             (insert ")\n\n")
-            (mapc 'abbrev--describe symbols)
+            (mapc #'abbrev--describe symbols)
             (insert "\n\n"))
         (insert "(define-abbrev-table '")
         (prin1 name)
         (if (null symbols)
             (insert " '())\n\n")
           (insert "\n  '(\n")
-          (mapc 'abbrev--write symbols)
+          (mapc #'abbrev--write symbols)
           (insert "   ))\n\n")))
       nil)))
 
@@ -1215,7 +1215,7 @@ Properties with special meaning:
     ;; There is really no docstring, instead the docstring arg
     ;; is a property name.
     (push docstring props) (setq docstring nil))
-  (eval `(defvar ,tablename nil ,@(if docstring (list docstring))))
+  (defvar-1 tablename nil docstring)
   (let ((table (if (boundp tablename) (symbol-value tablename))))
     (unless table
       (setq table (make-abbrev-table))
@@ -1229,7 +1229,7 @@ Properties with special meaning:
       (unless (cdr props) (error "Missing value for property %S" (car props)))
       (abbrev-table-put table (pop props) (pop props)))
     (dolist (elt definitions)
-      (apply 'define-abbrev table elt))))
+      (apply #'define-abbrev table elt))))
 
 (defun abbrev-table-menu (table &optional prompt sortfun)
   "Return a menu that shows all abbrevs in TABLE.

lisp/arc-mode.el

@@ -792,7 +792,15 @@ archive.
   ;; The funny [] here make it unlikely that the .elc file will be treated
   ;; as an archive by other software.
   (let (case-fold-search)
-    (cond ((looking-at "\\(PK00\\)?[P]K\003\004") 'zip)
+    ;;       See APPNOTE.txt (version 6.3.10) from PKWARE for the zip
+    ;;       file signatures:
+    ;;       - PK\003\004 == 0x04034b50: local file header signature
+    ;;         (section 4.3.7)
+    ;;       - PK\007\010 == 0x08074b50 (followed by local header):
+    ;;         spanned/split archive signature (section 8.5.3)
+    ;;       - PK00 == 0x30304b50 (followed by local header): temporary
+    ;;         spanned/split archive signature (section 8.5.4)
+    (cond ((looking-at "\\(?:PK\007\010\\|PK00\\)?[P]K\003\004") 'zip)
 	  ((looking-at "..-l[hz][0-9ds]-") 'lzh)
 	  ((looking-at "....................[\334]\247\304\375") 'zoo)
 	  ((and (looking-at "\C-z")	; signature too simple, IMHO

lisp/auth-source-pass.el

@@ -149,7 +149,6 @@ HOSTS can be a string or a list of strings."
 
 (defvar auth-source-pass-backend
   (auth-source-backend
-   (when (<= emacs-major-version 25) "password-store")
    :source "." ;; not used
    :type 'password-store
    :search-function #'auth-source-pass-search)

lisp/auth-source.el

@@ -708,7 +708,11 @@ must call it to obtain the actual value."
           (condition-case nil
               (unless (auth-source-search-collection
                        (plist-get spec key)
-                       (slot-value backend key))
+                       (slot-value
+                        backend
+                        (if (keywordp key)
+                            (intern-soft (substring (symbol-name key) 1))
+                          key)))
                 (setq filtered-backends (delq backend filtered-backends))
                 (cl-return))
             (invalid-slot-name nil))))
@@ -2391,21 +2395,21 @@ See `auth-source-search' for details on SPEC."
   :version "28.1")
 
 (defvar authinfo--keywords
-  '(("^#.*" . font-lock-comment-face)
+  '(("^#.*" (0 'font-lock-comment-face))
     ("^\\(machine\\)[ \t]+\\([^ \t\n]+\\)"
-     (1 font-lock-variable-name-face)
+     (1 'font-lock-variable-name-face)
-     (2 font-lock-builtin-face))
+     (2 'font-lock-builtin-face))
     ("\\(login\\)[ \t]+\\([^ \t\n]+\\)"
-     (1 font-lock-comment-delimiter-face)
+     (1 'font-lock-comment-delimiter-face)
-     (2 font-lock-keyword-face))
+     (2 'font-lock-keyword-face))
     ("\\(password\\)[ \t]+\\([^ \t\n]+\\)"
-     (1 font-lock-comment-delimiter-face)
+     (1 'font-lock-comment-delimiter-face)
-     (2 font-lock-doc-face))
+     (2 'font-lock-doc-face))
     ("\\(port\\)[ \t]+\\([^ \t\n]+\\)"
-     (1 font-lock-comment-delimiter-face)
+     (1 'font-lock-comment-delimiter-face)
-     (2 font-lock-type-face))
+     (2 'font-lock-type-face))
     ("\\([^ \t\n]+\\)[, \t]+\\([^ \t\n]+\\)"
-     (1 font-lock-constant-face)
+     (1 'font-lock-constant-face)
      (2 nil))))
 
 ;;;###autoload

lisp/bindings.el

@@ -429,6 +429,145 @@ a menu, so this function is not useful for non-menu keymaps."
                            (bindings--menu-item-string (cdr-safe b))))))
     (nconc (make-sparse-keymap prompt) bindings)))
 
+(defcustom mode-line-collapse-minor-modes nil
+  "Minor modes for which mode line lighters are hidden.
+Hidden lighters are collapsed into one, which latter is customizable
+using the option `mode-line-collapse-minor-modes-to'.
+
+The value could be a list (MODES ...) which means to collapse lighters
+only for MODES, or a list (not MODES ...) which means to collapse all
+lighters for minor modes not in MODES.  Other non-nil values make all
+lighters hidden."
+  :type '(choice (const :tag "No modes" nil)
+                 (repeat :tag "Modes" symbol)
+                 (cons :tag "All modes except"
+                       (const not) (repeat symbol))
+                 (const :tag "All modes" t))
+  :group 'mode-line
+  :version "31.1")
+
+(defcustom mode-line-collapse-minor-modes-to
+  (if (char-displayable-p ?…) " …" " ...")
+  "Lighter for collapsed minor modes.
+This is effective only when `mode-line-collapse-minor-modes' is non-nil."
+  :type 'string
+  :initialize #'custom-initialize-delay
+  :group 'mode-line
+  :version "31.1")
+
+(defcustom mode-line-modes-delimiters '("(" . ")")
+  "Strings placed around the modes displayed in the mode line.
+These elements are placed around `mode-name' and `mode-line-modes'."
+  :type '(choice (const :tag "No delimiters")
+                 (cons (string :tag "Left delimiter")
+                       (string :tag "Right delimiter")))
+  :group 'mode-line
+  :version "31.1")
+
+(defvar mode-line-minor-modes '(:eval (mode-line--minor-modes))
+  "Mode line construct for minor mode lighters.")
+;;;###autoload
+(put 'mode-line-minor-modes 'risky-local-variable t)
+
+(defun mode-line--make-lighter-menu (alist)
+  "Return a menu keymap for minor mode lighters in ALIST.
+ALIST should be in the same format as `minor-mode-alist'.
+
+Return nil if no lighters in ALIST should be visible, for example, there
+are no active minor modes or non-empty lighters."
+  (let ((menu (make-sparse-keymap "Minor Modes"))
+        (empty t))
+    (dolist (item alist)
+      (when-let* ((variable (car item))
+                  ((and (boundp variable)
+                        (symbol-value variable)))
+                  (lighter (format-mode-line `("" ,@(cdr-safe item))))
+                  ((not (string= lighter "")))
+                  (toggle (or (get variable :minor-mode-function) variable))
+                  ;; Follow the format in `mouse-minor-mode-menu'
+                  (name (format "%s - %s" lighter
+                                (capitalize
+                                 (string-replace
+                                  "-" " " (symbol-name toggle))))))
+        (when (eq ?  (aref name 0))
+          (setq name (substring name 1)))
+        (let* ((map (cdr-safe (assq variable minor-mode-map-alist)))
+               (mm-menu (and (keymapp map)
+                             (keymap-lookup map "<menu-bar>"))))
+          (setq mm-menu
+                (cond (mm-menu (mouse-menu-non-singleton mm-menu))
+                      ((fboundp toggle)
+                       (define-keymap :name name
+                         "<help>" (list 'menu-item
+                                        "Help for minor mode"
+                                        (lambda () (interactive)
+                                          (describe-function toggle)))
+                         "<turn-off>" (list 'menu-item
+                                            "Turn off minor mode"
+                                            toggle)))
+                      ;; No menu and not a minor mode function, so just
+                      ;; display the label without a sub-menu.
+                      (t nil)))
+          (keymap-set menu (format "<%s>" toggle)
+                      (list 'menu-item name mm-menu))
+          (setq empty nil))))
+    (and (not empty) menu)))
+
+(defun mode-line--minor-modes ()
+  "Compute mode line constructs for minor mode lighters."
+  (let (visible hidden)
+    (cond
+     ((not mode-line-collapse-minor-modes)
+      (setq visible minor-mode-alist
+            hidden nil))
+     ((eq 'not (car-safe mode-line-collapse-minor-modes))
+      (let ((modes (cdr mode-line-collapse-minor-modes)))
+        (dolist (item minor-mode-alist)
+          (if (memq (car item) modes)
+              (push item visible)
+            (push item hidden)))
+        (setq visible (nreverse visible)
+              hidden (nreverse hidden))))
+     ((listp mode-line-collapse-minor-modes)
+      (let ((modes mode-line-collapse-minor-modes))
+        (dolist (item minor-mode-alist)
+          (if (memq (car item) modes)
+              (push item hidden)
+            (push item visible)))
+        (setq visible (nreverse visible)
+              hidden (nreverse hidden))))
+     (t (setq visible nil
+              hidden minor-mode-alist)))
+    (list ""
+          `(:propertize ("" ,visible)
+                        mouse-face mode-line-highlight
+                        help-echo "Minor mode\n\
+mouse-1: Display minor mode menu\n\
+mouse-2: Show help for minor mode\n\
+mouse-3: Toggle minor modes"
+                        local-map ,mode-line-minor-mode-keymap)
+          (unless (string= "" (format-mode-line `("" ,hidden)))
+            (let* ((menu
+                    ;; FIXME: This is to defer the computation of the
+                    ;; menu, but may not play well with touchscreen.
+                    (lambda (e)
+                      (interactive "@e")
+                      (if-let* ((m (mode-line--make-lighter-menu hidden)))
+                          (popup-menu m e)
+                        (message "No menu available"))))
+                   (keymap
+                    (define-keymap
+                      :parent mode-line-minor-mode-keymap
+                      "<mode-line> <down-mouse-1>" menu
+                      "<mode-line> <mouse-2>" #'describe-mode)))
+              `(:propertize mode-line-collapse-minor-modes-to
+                            mouse-face mode-line-highlight
+                            help-echo "Hidden minor modes\n\
+mouse-1: Display hidden minor modes\n\
+mouse-2: Show help for enabled minor modes\n\
+mouse-3: Toggle minor modes"
+                            local-map ,keymap))))))
+
 (defvar mode-line-major-mode-keymap
   (let ((map (make-sparse-keymap)))
     (define-key map [mode-line down-mouse-1]
@@ -457,7 +596,7 @@ Keymap to display on minor modes.")
   (let ((recursive-edit-help-echo
          "Recursive edit, type C-M-c to get out"))
     (list (propertize "%[" 'help-echo recursive-edit-help-echo)
-	  "("
+          '(:eval (car mode-line-modes-delimiters))
 	  `(:propertize ("" mode-name)
 			help-echo "Major mode\n\
 mouse-1: Display major mode menu\n\
@@ -466,18 +605,12 @@ mouse-3: Toggle minor modes"
 			mouse-face mode-line-highlight
 			local-map ,mode-line-major-mode-keymap)
 	  '("" mode-line-process)
-	  `(:propertize ("" minor-mode-alist)
-			mouse-face mode-line-highlight
-			help-echo "Minor mode\n\
-mouse-1: Display minor mode menu\n\
-mouse-2: Show help for minor mode\n\
-mouse-3: Toggle minor modes"
-			local-map ,mode-line-minor-mode-keymap)
 	  (propertize "%n" 'help-echo "mouse-2: Remove narrowing from buffer"
 		      'mouse-face 'mode-line-highlight
 		      'local-map (make-mode-line-mouse-map
 				  'mouse-2 #'mode-line-widen))
-	  ")"
+	  '("" mode-line-minor-modes)
+          '(:eval (cdr mode-line-modes-delimiters))
 	  (propertize "%]" 'help-echo recursive-edit-help-echo)
 	  " "))
   "Mode line construct for displaying major and minor modes.")

lisp/calc/calc-mode.el

@@ -290,22 +290,16 @@
        (goto-char (point-max))
        (insert "\n\n")
        (forward-char -1))
+     (save-excursion
+       (goto-char (point-max))
+       (skip-chars-backward " \n\t")
+       (when (bobp)
+         (insert ";;; -*- mode: emacs-lisp; lexical-binding:t -*-\n")))
      (insert ";;; Mode settings stored by Calc on " (current-time-string) "\n")
-     (let ((list calc-mode-var-list))
+     (pcase-dolist (`(,v ,def) calc-mode-var-list)
-       (while list
+       (let* ((val (pop vals)))
-	 (let* ((v (car (car list)))
+	 (or (equal val def)
-		(def (nth 1 (car list)))
+	     (pp `(setq ,v ,(macroexp-quote val)) (current-buffer)))))
-		(val (car vals)))
-	   (or (equal val def)
-	       (progn
-		 (insert "(setq " (symbol-name v) " ")
-		 (if (and (or (listp val)
-			      (symbolp val))
-			  (not (memq val '(nil t))))
-		     (insert "'"))
-		 (insert (prin1-to-string val) ")\n"))))
-	 (setq list (cdr list)
-	       vals (cdr vals))))
      (run-hooks 'calc-mode-save-hook)
      (insert ";;; End of mode settings\n")
      (save-buffer)
@@ -332,7 +326,8 @@
           (equal user-init-file calc-settings-file)
           (> arg 0))
 	 (< arg 0)
-	 (load name t)
+	 (let ((warning-inhibit-types '((files missing-lexbind-cookie))))
+           (load name t))
 	 (message "New file")))))
 
 (defun math-get-modes-vec ()

lisp/calc/calc-trail.el

@@ -167,14 +167,7 @@
   (interactive "p")
   (calc-with-trail-buffer
    (let ((buffer-read-only nil))
-     (save-restriction
+     (kill-line n))
-       (narrow-to-region   ; don't delete "Emacs Trail" header
-	(save-excursion
-	  (goto-char (point-min))
-	  (forward-line 1)
-	  (point))
-	(point-max))
-       (kill-line n)))
    (calc-trail-here)))
 
 (provide 'calc-trail)

lisp/calc/calc.el

@@ -1347,7 +1347,8 @@ Notations:  3.14e6     3.14 * 10^6
       (equal calc-settings-file user-init-file)
       (progn
 	(setq calc-loaded-settings-file t)
-	(load (file-name-sans-extension calc-settings-file) t)))   ; t = missing-ok
+	(let ((warning-inhibit-types '((files missing-lexbind-cookie))))
+          (load (file-name-sans-extension calc-settings-file) t))))   ; t = missing-ok
   (let ((p command-line-args))
     (while p
       (and (equal (car p) "-f")