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mirror of https://git.savannah.gnu.org/git/emacs.git synced 2024-12-11 09:20:51 +00:00
emacs/lisp/loadup.el
Sam Steingold 657bcaf5ac avoid Eager macro-expansion failure: (void-function string-to-list)
* loadup.el [ns]: "ucs-normalize" uses `string-to-list' which is defined
  in "mule-util", so we have to load "mule-util" before "ucs-normalize",
  otherwise I get "Eager macro-expansion failure" on "make bootstrap"
2016-12-19 11:44:18 -05:00

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;;; loadup.el --- load up standardly loaded Lisp files for Emacs
;; Copyright (C) 1985-1986, 1992, 1994, 2001-2016 Free Software
;; Foundation, Inc.
;; Maintainer: emacs-devel@gnu.org
;; Keywords: internal
;; Package: emacs
;; This file is part of GNU Emacs.
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; This is loaded into a bare Emacs to make a dumpable one.
;; If you add a file to be loaded here, keep the following points in mind:
;; i) If the file is no-byte-compile, explicitly load the .el version.
;; Such files should (where possible) obey the doc-string conventions
;; expected by make-docfile. They should also be added to the
;; uncompiled[] list in make-docfile.c.
;; ii) If the file is dumped with Emacs (on any platform), put the
;; load statement at the start of a line (leading whitespace is ok).
;; iii) If the file is _not_ dumped with Emacs, make sure the load
;; statement is _not_ at the start of a line. See pcase for an example.
;; These rules are so that src/Makefile can construct lisp.mk automatically.
;; This ensures both that the Lisp files are compiled (if necessary)
;; before the emacs executable is dumped, and that they are passed to
;; make-docfile. (Any that are not processed for DOC will not have
;; doc strings in the dumped Emacs.)
;;; Code:
;; This is used in xdisp.c to determine when bidi reordering is safe.
;; (It starts non-nil in temacs, but we set it non-nil here anyway, in
;; case someone loads loadup one more time.) We reset it after
;; successfully loading charprop.el, which defines the Unicode tables
;; bidi.c needs for its job.
(setq redisplay--inhibit-bidi t)
;; Add subdirectories to the load-path for files that might get
;; autoloaded when bootstrapping.
;; This is because PATH_DUMPLOADSEARCH is just "../lisp".
(if (or (equal (member "bootstrap" command-line-args) '("bootstrap"))
;; FIXME this is irritatingly fragile.
(equal (nth 4 command-line-args) "unidata-gen.el")
(equal (nth 7 command-line-args) "unidata-gen-files")
(if (fboundp 'dump-emacs)
(string-match "src/bootstrap-emacs" (nth 0 command-line-args))
t))
(let ((dir (car load-path)))
;; We'll probably overflow the pure space.
(setq purify-flag nil)
;; Value of max-lisp-eval-depth when compiling initially.
;; During bootstrapping the byte-compiler is run interpreted when
;; compiling itself, which uses a lot more stack than usual.
(setq max-lisp-eval-depth 2200)
(setq load-path (list (expand-file-name "." dir)
(expand-file-name "emacs-lisp" dir)
(expand-file-name "language" dir)
(expand-file-name "international" dir)
(expand-file-name "textmodes" dir)
(expand-file-name "vc" dir)))))
(if (eq t purify-flag)
;; Hash consing saved around 11% of pure space in my tests.
(setq purify-flag (make-hash-table :test 'equal :size 80000)))
(message "Using load-path %s" load-path)
;; This is a poor man's `last', since we haven't loaded subr.el yet.
(if (or (equal (member "bootstrap" command-line-args) '("bootstrap"))
(equal (member "dump" command-line-args) '("dump")))
(progn
;; To reduce the size of dumped Emacs, we avoid making huge char-tables.
(setq inhibit-load-charset-map t)
;; --eval gets handled too late.
(defvar load--prefer-newer load-prefer-newer)
(setq load-prefer-newer t)))
;; We don't want to have any undo records in the dumped Emacs.
(set-buffer "*scratch*")
(setq buffer-undo-list t)
(load "emacs-lisp/byte-run")
(load "emacs-lisp/backquote")
(load "subr")
;; Do it after subr, since both after-load-functions and add-hook are
;; implemented in subr.el.
(add-hook 'after-load-functions (lambda (f) (garbage-collect)))
(load "version")
(load "widget")
(load "custom")
(load "emacs-lisp/map-ynp")
(load "international/mule")
(load "international/mule-conf")
(load "env")
(load "format")
(load "bindings")
(load "window") ; Needed here for `replace-buffer-in-windows'.
;; We are now capable of resizing the mini-windows, so give the
;; variable its advertised default value (it starts as nil, see
;; xdisp.c).
(setq resize-mini-windows 'grow-only)
(setq load-source-file-function 'load-with-code-conversion)
(load "files")
;; Load-time macro-expansion can only take effect after setting
;; load-source-file-function because of where it is called in lread.c.
(load "emacs-lisp/macroexp")
(if (byte-code-function-p (symbol-function 'macroexpand-all))
nil
;; Since loaddefs is not yet loaded, macroexp's uses of pcase will simply
;; fail until pcase is explicitly loaded. This also means that we have to
;; disable eager macro-expansion while loading pcase.
(let ((macroexp--pending-eager-loads '(skip))) (load "emacs-lisp/pcase"))
;; Re-load macroexp so as to eagerly macro-expand its uses of pcase.
(let ((max-lisp-eval-depth (* 2 max-lisp-eval-depth)))
(load "emacs-lisp/macroexp")))
(load "cus-face")
(load "faces") ; after here, `defface' may be used.
(load "button")
;; We don't want to store loaddefs.el in the repository because it is
;; a generated file; but it is required in order to compile the lisp
;; files. When bootstrapping, we cannot generate loaddefs.el until an
;; emacs binary has been built. We therefore support the build with
;; two files, ldefs-boot-manual.el and ldefs-boot-auto.el, which
;; contain the autoloads that are actually called during bootstrap.
;; These do not need to be updated as often as the real loaddefs.el
;; would. Bootstrap should always work with ldefs-boot-manual.el.
;; Therefore, Whenever a new autoload cookie gets added that is
;; necessary during bootstrapping, ldefs-boot-auto.el should be
;; updated using the "generate-ldefs-boot" make target.
;; autogen/update_autogen can be used to periodically update
;; ldefs-boot.
(condition-case nil (load "loaddefs.el")
;; In case loaddefs hasn't been generated yet.
(file-error (load "ldefs-boot-manual.el")))
(let ((new (make-hash-table :test 'equal)))
;; Now that loaddefs has populated definition-prefixes, purify its contents.
(maphash (lambda (k v) (puthash (purecopy k) (purecopy v) new))
definition-prefixes)
(setq definition-prefixes new))
(load "emacs-lisp/nadvice")
(load "emacs-lisp/cl-preloaded")
(load "minibuffer") ;After loaddefs, for define-minor-mode.
(load "obarray") ;abbrev.el is implemented in terms of obarrays.
(load "abbrev") ;lisp-mode.el and simple.el use define-abbrev-table.
(load "simple")
(load "help")
(load "jka-cmpr-hook")
(load "epa-hook")
;; Any Emacs Lisp source file (*.el) loaded here after can contain
;; multilingual text.
(load "international/mule-cmds")
(load "case-table")
;; This file doesn't exist when building a development version of Emacs
;; from the repository. It is generated just after temacs is built.
(if (load "international/charprop.el" t)
(setq redisplay--inhibit-bidi nil))
(load "international/characters")
(load "composite")
;; Load language-specific files.
(load "language/chinese")
(load "language/cyrillic")
(load "language/indian")
(load "language/sinhala")
(load "language/english")
(load "language/ethiopic")
(load "language/european")
(load "language/czech")
(load "language/slovak")
(load "language/romanian")
(load "language/greek")
(load "language/hebrew")
(load "international/cp51932")
(load "international/eucjp-ms")
(load "language/japanese")
(load "language/korean")
(load "language/lao")
(load "language/tai-viet")
(load "language/thai")
(load "language/tibetan")
(load "language/vietnamese")
(load "language/misc-lang")
(load "language/utf-8-lang")
(load "language/georgian")
(load "language/khmer")
(load "language/burmese")
(load "language/cham")
(load "indent")
(load "emacs-lisp/cl-generic")
(load "frame")
(load "startup")
(load "term/tty-colors")
(load "font-core")
;; facemenu must be loaded before font-lock, because `facemenu-keymap'
;; needs to be defined when font-lock is loaded.
(load "facemenu")
(load "emacs-lisp/syntax")
(load "font-lock")
(load "jit-lock")
(load "mouse")
(if (boundp 'x-toolkit-scroll-bars)
(load "scroll-bar"))
(load "select")
(load "emacs-lisp/timer")
(load "isearch")
(load "rfn-eshadow")
(load "menu-bar")
(load "emacs-lisp/lisp")
(load "textmodes/page")
(load "register")
(load "textmodes/paragraphs")
(load "progmodes/prog-mode")
(load "emacs-lisp/lisp-mode")
(load "progmodes/elisp-mode")
(load "textmodes/text-mode")
(load "textmodes/fill")
(load "newcomment")
(load "replace")
(load "emacs-lisp/tabulated-list")
(load "buff-menu")
(if (fboundp 'x-create-frame)
(progn
(load "fringe")
;; Needed by `imagemagick-register-types'
(load "emacs-lisp/regexp-opt")
(load "image")
(load "international/fontset")
(load "dnd")
(load "tool-bar")))
(if (featurep 'dynamic-setting)
(load "dynamic-setting"))
(if (featurep 'x)
(progn
(load "x-dnd")
(load "term/common-win")
(load "term/x-win")))
(if (or (eq system-type 'windows-nt)
(featurep 'w32))
(progn
(load "term/common-win")
(load "w32-vars")
(load "term/w32-win")
(load "disp-table")
(when (eq system-type 'windows-nt)
(load "w32-fns")
(load "ls-lisp")
(load "dos-w32"))))
(if (eq system-type 'ms-dos)
(progn
(load "dos-w32")
(load "dos-fns")
(load "dos-vars")
;; Don't load term/common-win: it isn't appropriate for the `pc'
;; ``window system'', which generally behaves like a terminal.
(load "term/internal")
(load "term/pc-win")
(load "ls-lisp")
(load "disp-table"))) ; needed to setup ibm-pc char set, see internal.el
(if (featurep 'ns)
(progn
(load "term/common-win")
;; Don't load ucs-normalize.el unless uni-*.el files were
;; already produced, because it needs uni-*.el files that might
;; not be built early enough during bootstrap.
(when (load-history-filename-element "charprop\\.el")
(load "international/mule-util")
(load "international/ucs-normalize")
(load "term/ns-win"))))
(if (fboundp 'x-create-frame)
;; Do it after loading term/foo-win.el since the value of the
;; mouse-wheel-*-event vars depends on those files being loaded or not.
(load "mwheel"))
;; Preload some constants and floating point functions.
(load "emacs-lisp/float-sup")
(load "vc/vc-hooks")
(load "vc/ediff-hook")
(load "uniquify")
(load "electric")
(load "emacs-lisp/eldoc")
(load "cus-start") ;Late to reduce customize-rogue (needs loaddefs.el anyway)
(if (not (eq system-type 'ms-dos))
(load "tooltip"))
;; This file doesn't exist when building a development version of Emacs
;; from the repository. It is generated just after temacs is built.
(load "leim/leim-list.el" t)
;; If you want additional libraries to be preloaded and their
;; doc strings kept in the DOC file rather than in core,
;; you may load them with a "site-load.el" file.
;; But you must also cause them to be scanned when the DOC file
;; is generated.
(let ((lp load-path))
(load "site-load" t)
;; We reset load-path after dumping.
;; For a permanent change in load-path, use configure's
;; --enable-locallisppath option.
;; See http://debbugs.gnu.org/16107 for more details.
(or (equal lp load-path)
(message "Warning: Change in load-path due to site-load will be \
lost after dumping")))
;; Make sure default-directory is unibyte when dumping. This is
;; because we cannot decode and encode it correctly (since the locale
;; environment is not, and should not be, set up). default-directory
;; is used every time we call expand-file-name, which we do in every
;; file primitive. So the only workable solution to support building
;; in non-ASCII directories is to manipulate unibyte strings in the
;; current locale's encoding.
(if (and (member (car (last command-line-args)) '("dump" "bootstrap"))
(multibyte-string-p default-directory))
(error "default-directory must be unibyte when dumping Emacs!"))
;; Determine which last version number to use
;; based on the executables that now exist.
(if (and (equal (last command-line-args) '("dump"))
(not (eq system-type 'ms-dos)))
(let* ((base (concat "emacs-" emacs-version "."))
(exelen (if (eq system-type 'windows-nt) -4))
(files (file-name-all-completions base default-directory))
(versions (mapcar (function
(lambda (name)
(string-to-number
(substring name (length base) exelen))))
files)))
(setq emacs-repository-version (condition-case nil (emacs-repository-get-version)
(error nil)))
;; `emacs-version' is a constant, so we shouldn't change it with `setq'.
(defconst emacs-version
(format "%s.%d"
emacs-version (if versions (1+ (apply 'max versions)) 1)))))
(message "Finding pointers to doc strings...")
(if (equal (last command-line-args) '("dump"))
(Snarf-documentation "DOC")
(condition-case nil
(Snarf-documentation "DOC")
(error nil)))
(message "Finding pointers to doc strings...done")
;; Note: You can cause additional libraries to be preloaded
;; by writing a site-init.el that loads them.
;; See also "site-load" above
(let ((lp load-path))
(load "site-init" t)
(or (equal lp load-path)
(message "Warning: Change in load-path due to site-init will be \
lost after dumping")))
(setq current-load-list nil)
;; Avoid storing references to build directory in the binary.
(setq custom-current-group-alist nil)
;; We keep the load-history data in PURE space.
;; Make sure that the spine of the list is not in pure space because it can
;; be destructively mutated in lread.c:build_load_history.
(setq load-history (mapcar 'purecopy load-history))
(set-buffer-modified-p nil)
(remove-hook 'after-load-functions (lambda (f) (garbage-collect)))
(if (boundp 'load--prefer-newer)
(progn
(setq load-prefer-newer load--prefer-newer)
(put 'load-prefer-newer 'standard-value load--prefer-newer)
(makunbound 'load--prefer-newer)))
(setq inhibit-load-charset-map nil)
(clear-charset-maps)
(garbage-collect)
;; At this point, we're ready to resume undo recording for scratch.
(buffer-enable-undo "*scratch*")
(when (hash-table-p purify-flag)
(let ((strings 0)
(vectors 0)
(bytecodes 0)
(conses 0)
(others 0))
(maphash (lambda (k v)
(cond
((stringp k) (setq strings (1+ strings)))
((vectorp k) (setq vectors (1+ vectors)))
((consp k) (setq conses (1+ conses)))
((byte-code-function-p v) (setq bytecodes (1+ bytecodes)))
(t (setq others (1+ others)))))
purify-flag)
(message "Pure-hashed: %d strings, %d vectors, %d conses, %d bytecodes, %d others"
strings vectors conses bytecodes others)))
;; Prevent build-time PATH getting stored in the binary.
;; Mainly cosmetic, but helpful for Guix. (Bug#20330)
;; Do this here, rather than earlier, so that the above code
;; can invoke Git commands and the like.
(setq exec-path nil)
;; Avoid error if user loads some more libraries now and make sure the
;; hash-consing hash table is GC'd.
(setq purify-flag nil)
(if (null (garbage-collect))
(setq pure-space-overflow t))
;; Make sure we will attempt bidi reordering henceforth.
(setq redisplay--inhibit-bidi nil)
(if (member (car (last command-line-args)) '("dump" "bootstrap"))
(progn
(message "Dumping under the name emacs")
(condition-case ()
(delete-file "emacs")
(file-error nil))
;; We used to dump under the name xemacs, but that occasionally
;; confused people installing Emacs (they'd install the file
;; under the name `xemacs'), and it's inconsistent with every
;; other GNU program's build process.
(dump-emacs "emacs" "temacs")
(message "%d pure bytes used" pure-bytes-used)
;; Recompute NAME now, so that it isn't set when we dump.
(if (not (or (eq system-type 'ms-dos)
;; Don't bother adding another name if we're just
;; building bootstrap-emacs.
(equal (last command-line-args) '("bootstrap"))))
(let ((name (concat "emacs-" emacs-version))
(exe (if (eq system-type 'windows-nt) ".exe" "")))
(while (string-match "[^-+_.a-zA-Z0-9]+" name)
(setq name (concat (downcase (substring name 0 (match-beginning 0)))
"-"
(substring name (match-end 0)))))
(setq name (concat name exe))
(message "Adding name %s" name)
;; When this runs on Windows, invocation-directory is not
;; necessarily the current directory.
(add-name-to-file (expand-file-name (concat "emacs" exe)
invocation-directory)
(expand-file-name name invocation-directory)
t)))
(kill-emacs)))
;; For machines with CANNOT_DUMP defined in config.h,
;; this file must be loaded each time Emacs is run.
;; So run the startup code now. First, remove `-l loadup' from args.
(if (and (member (nth 1 command-line-args) '("-l" "--load"))
(equal (nth 2 command-line-args) "loadup"))
(setcdr command-line-args (nthcdr 3 command-line-args)))
(eval top-level)
;; Local Variables:
;; no-byte-compile: t
;; no-update-autoloads: t
;; End:
;;; loadup.el ends here