Mercurial > hg > xemacs-beta
view src/s/aix4-2.h @ 5146:88bd4f3ef8e4
make lrecord UID's have a separate UID space for each object, resurrect debug SOE code in extents.c
-------------------- ChangeLog entries follow: --------------------
src/ChangeLog addition:
2010-03-15 Ben Wing <ben@xemacs.org>
* alloc.c:
* alloc.c (c_readonly):
* alloc.c (deadbeef_memory):
* alloc.c (make_compiled_function):
* alloc.c (make_button_data):
* alloc.c (make_motion_data):
* alloc.c (make_process_data):
* alloc.c (make_timeout_data):
* alloc.c (make_magic_data):
* alloc.c (make_magic_eval_data):
* alloc.c (make_eval_data):
* alloc.c (make_misc_user_data):
* alloc.c (noseeum_make_marker):
* alloc.c (ADDITIONAL_FREE_string):
* alloc.c (common_init_alloc_early):
* alloc.c (init_alloc_once_early):
* bytecode.c (print_compiled_function):
* bytecode.c (mark_compiled_function):
* casetab.c:
* casetab.c (print_case_table):
* console.c:
* console.c (print_console):
* database.c (print_database):
* database.c (finalize_database):
* device-msw.c (sync_printer_with_devmode):
* device-msw.c (print_devmode):
* device-msw.c (finalize_devmode):
* device.c:
* device.c (print_device):
* elhash.c:
* elhash.c (print_hash_table):
* eval.c (print_multiple_value):
* eval.c (mark_multiple_value):
* events.c (deinitialize_event):
* events.c (print_event):
* events.c (event_equal):
* extents.c:
* extents.c (soe_dump):
* extents.c (soe_insert):
* extents.c (soe_delete):
* extents.c (soe_move):
* extents.c (extent_fragment_update):
* extents.c (print_extent_1):
* extents.c (print_extent):
* extents.c (vars_of_extents):
* frame.c:
* frame.c (print_frame):
* free-hook.c:
* free-hook.c (check_free):
* glyphs.c:
* glyphs.c (print_image_instance):
* glyphs.c (print_glyph):
* gui.c:
* gui.c (copy_gui_item):
* hash.c:
* hash.c (NULL_ENTRY):
* hash.c (KEYS_DIFFER_P):
* keymap.c (print_keymap):
* keymap.c (MARKED_SLOT):
* lisp.h:
* lrecord.h:
* lrecord.h (LISP_OBJECT_UID):
* lrecord.h (set_lheader_implementation):
* lrecord.h (struct old_lcrecord_header):
* lstream.c (print_lstream):
* lstream.c (finalize_lstream):
* marker.c (print_marker):
* marker.c (marker_equal):
* mc-alloc.c (visit_all_used_page_headers):
* mule-charset.c:
* mule-charset.c (print_charset):
* objects.c (print_color_instance):
* objects.c (print_font_instance):
* objects.c (finalize_font_instance):
* opaque.c (print_opaque):
* opaque.c (print_opaque_ptr):
* opaque.c (equal_opaque_ptr):
* print.c (internal_object_printer):
* print.c (enum printing_badness):
* rangetab.c (print_range_table):
* rangetab.c (range_table_equal):
* specifier.c (print_specifier):
* specifier.c (finalize_specifier):
* symbols.c:
* symbols.c (print_symbol_value_magic):
* tooltalk.c:
* tooltalk.c (print_tooltalk_message):
* tooltalk.c (print_tooltalk_pattern):
* window.c (print_window):
* window.c (debug_print_window):
(1) Make lrecord UID's have a separate UID space for each object.
Otherwise, with 20-bit UID's, we rapidly wrap around, especially
when common objects like conses and strings increment the UID value
for every object created. (Originally I tried making two UID spaces,
one for objects that always print readably and hence don't display
the UID, and one for other objects. But certain objects like markers
for which a UID is displayed are still generated rapidly enough that
UID overflow is a serious issue.) This also has the advantage of
making UID values smaller, hence easier to remember -- their main
purpose is to make it easier to keep track of different objects of
the same type when debugging code. Make sure we dump lrecord UID's
so that we don't have problems with pdumped and non-dumped objects
having the same UID.
(2) Display UID's consistently whenever an object (a) doesn't
consistently print readably (objects like cons and string, which
always print readably, can't display a UID), and (b) doesn't
otherwise have a unique property that makes objects of a
particular type distinguishable. (E.g. buffers didn't and still
don't print an ID, but the buffer name uniquely identifies the
buffer.) Some types, such as event, extent, compiled-function,
didn't always (or didn't ever) display an ID; others (such as
marker, extent, lstream, opaque, opaque-ptr, any object using
internal_object_printer()) used to display the actual machine
pointer instead.
(3) Rename NORMAL_LISP_OBJECT_UID to LISP_OBJECT_UID; make it work
over all Lisp objects and take a Lisp object, not a struct pointer.
(4) Some misc cleanups in alloc.c, elhash.c.
(5) Change code in events.c that "deinitializes" an event so that
it doesn't increment the event UID counter in the process. Also
use deadbeef_memory() to overwrite memory instead of doing the same
with custom code. In the process, make deadbeef_memory() in
alloc.c always available, and delete extraneous copy in mc-alloc.c.
Also capitalize all uses of 0xDEADBEEF. Similarly in elhash.c
call deadbeef_memory().
(6) Resurrect "debug SOE" code in extents.c. Make it conditional
on DEBUG_XEMACS and on a `debug-soe' variable, rather than on
SOE_DEBUG. Make it output to stderr, not stdout.
(7) Delete some custom print methods that were identical to
external_object_printer().
| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Mon, 15 Mar 2010 16:35:38 -0500 |
| parents | aa5ed11f473b |
| children | 2aa9cd456ae7 861f2601a38b |
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/* Definitions file for XEmacs running on IBM AIX version 4.2 * Copyright (C) 1985, 1986, 1990 Free Software Foundation, Inc. * * 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: FSF 19.31. */ /* * Define symbols to identify the version of Unix this is. * Define all the symbols that apply correctly. */ #define USG /* System III, System V, etc */ #define USG5 /* Specify IBM AIX version of system */ #ifndef AIX #define AIX #define AIX4 #define AIX4_1 #endif /* This symbol should be defined on AIX Version 3 ??????? */ #ifndef _AIX #define _AIX #endif /* SYSTEM_TYPE should indicate the kind of system you are using. * It sets the Lisp variable system-type. */ #define SYSTEM_TYPE "aix" /* The file containing the kernel's symbol table is called /unix. */ #define KERNEL_FILE "/unix" /* The symbol in the kernel where the load average is found * is named avenrun. */ #define LDAV_SYMBOL "avenrun" /* Special itemss needed to make Emacs run on this system. */ /* On USG systems the system calls are interruptible by signals * that the user program has elected to catch. Thus the system call * must be retried in these cases. To handle this without massive * changes in the source code, we remap the standard system call names * to names for our own functions in sysdep.c that do the system call * with retries. */ #define INTERRUPTIBLE_OPEN #define INTERRUPTIBLE_IO #ifndef __GNUC__ #define LINKER "cc" #endif /* Prevent -lg from being used for debugging. Not needed. */ #define LIBS_DEBUG /* No need to specify -lc when linking. */ #define LIB_STANDARD /* Use terminfo instead of termcap. */ #define TERMINFO /* AIX doesn't define this. */ #define unix 1 #ifndef __GNUC__ /* Otherwise, XEmacs is just too big ... */ #define C_SWITCH_SYSTEM "-mminimal-toc" #endif #define HAVE_ALLOCA /* FIXME: This was needed for AIX 4.1. Is it for AIX 4.2? */ /* The character-composition stuff is broken in X11R5. * Even with XIMStatusNothing aliased to XIMStatusNone, * tranle@intellicorp.com (Minh Tran-Le) reports that enabling * the internationalization code causes the modifier keys C, M and Shift * to beep after a mouse click. */ #define X11R5_INHIBIT_I18N /* For AIX, it turns out compiling emacs under AIX 3.2.4 REQUIRES "cc -g" * because "cc -O" crashes. Under AIX 3.2.5, "cc -O" is required because * "cc -g" crashes. Go figure. --floppy@merlin.mit.edu */ #ifndef __GNUC__ #undef C_DEBUG_SWITCH #undef C_OPTIMIZE_SWITCH #define C_DEBUG_SWITCH #define C_OPTIMIZE_SWITCH "-O" #endif #define MAIL_USE_LOCKF /* XEmacs: from dkeller@VNET.IBM.COM */ #define BROKEN_SIGIO #ifndef NOT_C_CODE #define _XFUNCS_H_ 1 /* #### we don't use either any more. some AIX user should delete the include * and see if anything breaks. --ben */ /* AIX is happier when bzero and strcasecmp are declared */ #include "strings.h" /* Forward declarations for xlc warning suppressions */ struct ether_addr; struct sockaddr_dl; #ifdef __xlC__ /* "eXceLlent C compiler" ?! */ #if __xlC__ >= 1200 /* IBM's C compiler option `-O3' is too aggressive. * We recommend instead the combination `-O3 -qstrict', which seems safe. * * cc -O3 miscompiles at least two functions. From IBM's docs: * * IBM> -qstrict turns off the following optimizations: * * IBM> Performing code motion and scheduling on computations such as loads * IBM> and floating-point computations that may trigger an exception. * * Nevertheless, we try to work with these compiler options. */ #pragma option_override (bytecount_to_charcount, "opt(strict,yes)") #pragma option_override (Fexpand_file_name, "opt(strict,yes)") #endif /* recent IBM C compiler */ #endif /* IBM's C compiler */ #endif /* C code */ /* getaddrinfo is broken in AIX 4.3 as per IY04165. * At this time (2/21/2000), there's no PTF available. * -- Mike Sperber <mike@xemacs.org> */ #undef HAVE_GETADDRINFO #ifdef __GNUC__ #undef _NO_PROTO #endif /* For AIX, it turns out compiling emacs under AIX 3.2.4 REQUIRES "cc -g" * because "cc -O" crashes. Under AIX 3.2.5, "cc -O" is required because * "cc -g" crashes. Go figure. --floppy@merlin.mit.edu. * 4.1 seems to need -g again. -- larry@vaquita.mitra.com. */ /* David Edelsohn <dje@watson.ibm.com> says that this actually depends * on the version of XLC, which can't be predicted from the system version. * What a mess! */ #ifndef __GNUC__ #undef C_DEBUG_SWITCH #undef C_OPTIMIZE_SWITCH #define C_DEBUG_SWITCH "-g" #endif