view src/profile.h @ 1333:1b0339b048ce

[xemacs-hg @ 2003-03-02 09:38:37 by ben] To: xemacs-patches@xemacs.org PROBLEMS: Include nt/PROBLEMS and update. Add note about incremental linking badness. cmdloop.el, custom.el, dumped-lisp.el, files.el, keydefs.el, keymap.el, lisp-mode.el, make-docfile.el, replace.el, simple.el, subr.el, view-less.el, wid-edit.el: Lots of syncing with FSF 21.2. Use if-fboundp in wid-edit.el. New file newcomment.el from FSF. internals/internals.texi: Fix typo. (Build-Time Dependencies): New node. PROBLEMS: Delete. config.inc.samp, xemacs.mak: Eliminate HAVE_VC6, use SUPPORT_EDIT_AND_CONTINUE in its place. No incremental linking unless SUPPORT_EDIT_AND_CONTINUE, since it can cause nasty crashes in pdump. Put warnings about this in config.inc.samp. Report the full compile flags used for src and lib-src in the Installation output. alloc.c, lisp.h, ralloc.c, regex.c: Use ALLOCA() in regex.c to avoid excessive stack allocation. Also fix subtle problem with REL_ALLOC() -- any call to malloc() (direct or indirect) may relocate rel-alloced data, causing buffer text to shift. After any such call, regex must update all its pointers to such data. Add a system, when ERROR_CHECK_MALLOC, whereby regex.c indicates all the places it is prepared to handle malloc()/realloc()/free(), and any calls anywhere in XEmacs outside of this will trigger an abort. alloc.c, dialog-msw.c, eval.c, event-stream.c, general-slots.h, insdel.c, lisp.h, menubar-msw.c, menubar-x.c: Change *run_hook*_trapping_problems to take a warning class, not a string. Factor out code to issue warnings, add flag to call_trapping_problems() to postpone warning issue, and make *run_hook*_trapping_problems issue their own warnings tailored to the hook, postponed in the case of safe_run_hook_trapping_problems() so that the appropriate message can be issued about resetting to nil only when not `quit'. Make record_unwind_protect_restoring_int() non-static. dumper.c: Issue notes about incremental linking problems under Windows. fileio.c: Mule-ize encrypt/decrypt-string code. text.h: Spacing changes.
author ben
date Sun, 02 Mar 2003 09:38:54 +0000
parents f3437b56874d
children b49d38bc659d
line wrap: on
line source

/* Profiling.
   Copyright (C) 2003 Ben Wing.

This file is part of XEmacs.

XEmacs 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 2, or (at your option) any
later version.

XEmacs 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 XEmacs; see the file COPYING.  If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */

/* Synched up with: Not in FSF. */

/* Authorship:

   Ben Wing: Feb 2003.
 */

#include "backtrace.h"

void mark_profiling_info (void);
void profile_record_unwind (struct backtrace *);
void profile_record_about_to_call (struct backtrace *);
void profile_record_just_called (struct backtrace *);
void profile_record_consing (EMACS_INT size);
void profile_record_unconsing (EMACS_INT size);
extern int profiling_active;

/* We call about_to_call() and just_called() depending on the current
   *dynamic* value of profiling_active (which could change as a result of
   calling the function) but if we push a backtrace, we must pop it later,
   so we need to remember the status of this. */
#define PROFILE_DECLARE()						 \
int do_backtrace = profiling_active || backtrace_with_internal_sections; \
struct backtrace backtrace

/* As just mentioned, we rely on the dynamic value of profiling_active.
   This ensures correct behavior (e.g. we never modify the profiling info
   when profiling is not active) because we seed and reap all functions
   currently on the stack when starting and stopping.  See
   `start-profiling'. */
#define PROFILE_ENTER_FUNCTION()		\
do						\
{						\
  if (profiling_active)				\
    profile_record_about_to_call (&backtrace);	\
}						\
while (0)

#define PROFILE_EXIT_FUNCTION()			\
do						\
{						\
  if (profiling_active)				\
    profile_record_just_called (&backtrace);	\
}						\
while (0)

/* We are entering a section that we would like to record profile information
   about.  We put this information into the backtrace list, just like
   normal functions do.  That is one easy way to make sure that we always
   record info on the innermost section or function, whether section or
   function. (To do this, we always need some sort of collusion between
   profile and eval; this is one way.) */

#define PROFILE_RECORD_ENTERING_SECTION(var)		\
do							\
{							\
  if (do_backtrace)					\
    {							\
      backtrace.function = &var;			\
      backtrace.args = NULL;				\
      backtrace.nargs = UNEVALLED;			\
      backtrace.evalargs = 0;				\
      backtrace.pdlcount = specpdl_depth ();		\
      backtrace.debug_on_exit = 0;			\
      backtrace.function_being_called = 0;		\
      PUSH_BACKTRACE (backtrace);			\
    }							\
  PROFILE_ENTER_FUNCTION ();				\
} while (0)

#define PROFILE_RECORD_EXITING_SECTION(var)		\
do							\
{							\
  PROFILE_EXIT_FUNCTION ();				\
  if (do_backtrace)					\
    POP_BACKTRACE (backtrace);				\
} while (0)