[xemacs-hg @ 2003-02-13 09:57:04 by ben] profile updates profile.c: Major reworking. Keep track of new information -- total function timing (includes descendants), GC usage, total GC usage (includes descendants). New functions to be called appropriately from eval.c, alloc.c to keep track of this information. Keep track of when we're actually in a function vs. in its profile, for more accurate timing counts. Track profile overhead separately. Create new mechanism for specifying "internal sections" that are tracked just like regular Lisp functions and even appear in the backtrace if `backtrace-with-internal-sections' is non-nil (t by default for error-checking builds). Add some KKCC information for the straight (non-Elisp) hash table used by profile, which contains Lisp objects in its keys -- but not used yet. Remove old ad-hoc methods for tracking garbage collection, redisplay (which was incorrect anyway when Lisp was called within these sections). Don't record any tick info when blocking under MS Windows, since the timer there is in real time rather than in process time. Make `start-profiling', `stop-profiling' interactive. Be consistent wrt. recursive functions and functions currently on the stack when starting or stopping -- together these make implementing the `total' values extremely difficult. When we start profiling, we act as if we just entered all the functions currently on the stack. Likewise when exiting. Create vars in_profile for tracking time spent inside of profiling, and profiling_lock for setting exclusive access to the main hash table when reading from it or modifying it. (protects against getting screwed up by the signal handle going off at the same time. profile.h: New file. Create macros for declaring internal profiling sections. lisp.h: Move profile-related stuff to profile.h. alloc.c: Keep track of total consing, for profile. Tell profile when we are consing. Use new profile-section method for noting garbage-collection. alloc.c: Abort if we attempt to call the allocator reentrantly. backtrace.h, eval.c: Add info for use by profile in the backtrace frame and transfer PUSH_BACKTRACE/POP_BACKTRACE from eval.c, for use with profile. elhash.c: Author comment. eval.c, lisp.h: New Lisp var `backtrace-with-internal-sections'. Set to t when error-checking is on. eval.c: When unwinding, eval.c: Report to profile when we are about-to-call and just-called wrt. a function. alloc.c, eval.c: Allow for "fake" backtrace frames, for internal sections (used by profile and `backtrace-with-internal-sections'. event-Xt.c, event-gtk.c, event-msw.c, event-tty.c: Record when we are actually blocking on an event, for profile's sake. event-stream.c: Record internal profiling sections for getting, dispatching events. extents.c: Record internal profiling sections for map_extents. hash.c, hash.h: Add pregrow_hash_table_if_necessary(). (Used in profile code since the signal handler is the main grower but can't allow a realloc(). We make sure, at critical points, that the table is large enough.) lread.c: Create internal profiling sections for `load' (which may be triggered internally by autoload, etc.). redisplay.c: Remove old profile_redisplay_flag. Use new macros to declare internal profiling section for redisplay. text.c: Use new macros to declare internal profiling sections for char-byte conversion and internal-external conversion. SEMI-UNRELATED CHANGES: ----------------------- text.c: Update the long comments.

;;; site-load.el --- Template file for site-wide XEmacs customization
;; Copyright (C) 1997 Free Software Foundation, Inc.

;; Author: Steven L. Baur <steve@xemacs.org>
;; Keywords: internal

;; This file is part of XEmacs.

;;; Commentary:

;; This is a prototype site-load.el file.
;; The site-load.el mechanism is provided so XEmacs installers can easily
;; dump lisp packages with XEmacs that do not get dumped standardly.

;; The file `site-packages' if it exists should look something like:
;; (setq site-load-packages '(
;; "../lisp/modes/cc-mode.elc"
;; "../lisp/utils/redo.elc"
;; "../lisp/packages/scroll-in-place.elc"
;; )
;; )

;; The first line and the last line must be exact.  Each of the packages
;; listed must be double quoted, have either an absolute path, or a relative
;; to the build src directory path *and* be bytecompiled prior to the attempt
;; to dump.  They also must explicitly have the .elc extension.

;; Because this is a trial implementation and the file is shared with
;; make-docfiles, syntax is strict and unforgiving.  So sue me.  It
;; is still better than the way it used to be.

;; Also note that site-packages belongs in the top level directory not the
;; lisp directory for use with --srcdir configurations.

;;; Code:
(defvar site-load-package-file "../site-packages"
  "File name containing the list of extra packages to dump with XEmacs.")
(defvar site-load-packages nil
  "A list of .elc files that should be dumped with XEmacs.
This variable should be set by `site-load-package-file'.")

;; Load site specific packages for dumping with the XEmacs binary.
(when (file-exists-p site-load-package-file) 
  (let ((file))
    (load site-load-package-file t t t)
    ;; The `pureload' macro is provided as a clue that a package is
    ;; being loaded in preparation of being dumped into XEmacs.
    (defmacro pureload (file)
      (list 'prog1 (list 'load file) '(garbage-collect)))
    (message "Loading site-wide packages for dumping...")
    (while site-load-packages
      (setq file (car site-load-packages))
      (pureload file)
      (setq site-load-packages (cdr site-load-packages)))
    (message "Loading site-wide packages for dumping...done")
    (fmakunbound 'pureload)))

;; This file is intended for end user additions.
;; Put other initialization here, like setting of language-environment, etc.
;; Perhaps this should really be in the site-init.el.

;;; site-load.el ends here