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cleanup of code related to xfree(), better KKCC backtrace capabilities, document XD_INLINE_LISP_OBJECT_BLOCK_PTR, fix some memory leaks, other code cleanup -------------------- ChangeLog entries follow: -------------------- src/ChangeLog addition: 2010-03-24 Ben Wing <ben@xemacs.org> * array.h: * array.h (XD_LISP_DYNARR_DESC): * dumper.c (pdump_register_sub): * dumper.c (pdump_store_new_pointer_offsets): * dumper.c (pdump_reloc_one_mc): * elhash.c: * gc.c (lispdesc_one_description_line_size): * gc.c (kkcc_marking): * lrecord.h: * lrecord.h (IF_NEW_GC): * lrecord.h (enum memory_description_type): * lrecord.h (enum data_description_entry_flags): * lrecord.h (struct opaque_convert_functions): Rename XD_LISP_OBJECT_BLOCK_PTR to XD_INLINE_LISP_OBJECT_BLOCK_PTR and document it in lrecord.h. * data.c: * data.c (finish_marking_weak_lists): * data.c (continue_marking_ephemerons): * data.c (finish_marking_ephemerons): * elhash.c (MARK_OBJ): * gc.c: * gc.c (lispdesc_indirect_count_1): * gc.c (struct): * gc.c (kkcc_bt_push): * gc.c (kkcc_gc_stack_push): * gc.c (kkcc_gc_stack_push_lisp_object): * gc.c (kkcc_gc_stack_repush_dirty_object): * gc.c (KKCC_DO_CHECK_FREE): * gc.c (mark_object_maybe_checking_free): * gc.c (mark_struct_contents): * gc.c (mark_lisp_object_block_contents): * gc.c (register_for_finalization): * gc.c (mark_object): * gc.h: * lisp.h: * profile.c: * profile.c (mark_profiling_info_maphash): Clean up KKCC code related to DEBUG_XEMACS. Rename kkcc_backtrace() to kkcc_backtrace_1() and add two params: a `size' arg to control how many stack elements to print and a `detailed' arg to control whether Lisp objects are printed using `debug_print()'. Create front-ends to kkcc_backtrace_1() -- kkcc_detailed_backtrace(), kkcc_short_backtrace(), kkcc_detailed_backtrace_full(), kkcc_short_backtrace_full(), as well as shortened versions kbt(), kbts(), kbtf(), kbtsf() -- to call it with various parameter values. Add an `is_lisp' field to the stack and backtrace structures and use it to keep track of whether an object pushed onto the stack is a Lisp object or a non-Lisp structure; in kkcc_backtrace_1(), don't try to print a non-Lisp structure as a Lisp object. * elhash.c: * extents.c: * file-coding.c: * lrecord.h: * lrecord.h (IF_NEW_GC): * marker.c: * marker.c (Fmarker_buffer): * mule-coding.c: * number.c: * rangetab.c: * specifier.c: New macros IF_OLD_GC(), IF_NEW_GC() to simplify declaration of Lisp objects when a finalizer may exist in one but not the other. Use them appropriately. * extents.c (finalize_extent_info): Don't zero out data->soe and data->extents before trying to free, else we get memory leaks. * lrecord.h (enum lrecord_type): Make the first lrecord type have value 1 not 0 so that 0 remains without implementation and attempts to interpret zeroed memory as a Lisp object will be more obvious. * array.c (Dynarr_free): * device-msw.c (msprinter_delete_device): * device-tty.c (free_tty_device_struct): * device-tty.c (tty_delete_device): * dialog-msw.c (handle_directory_dialog_box): * dialog-x.c: * emacs.c (free_argc_argv): * emodules.c (attempt_module_delete): * file-coding.c (chain_finalize_coding_stream_1): * file-coding.c (chain_finalize_coding_stream): * glyphs-eimage.c: * glyphs-eimage.c (jpeg_instantiate_unwind): * glyphs-eimage.c (gif_instantiate_unwind): * glyphs-eimage.c (png_instantiate_unwind): * glyphs-eimage.c (tiff_instantiate_unwind): * imgproc.c: * imgproc.c (build_EImage_quantable): * insdel.c (uninit_buffer_text): * mule-coding.c (iso2022_finalize_detection_state): * objects-tty.c (tty_finalize_color_instance): * objects-tty.c (tty_finalize_font_instance): * objects-tty.c (tty_font_list): * process.c: * process.c (finalize_process): * redisplay.c (add_propagation_runes): * scrollbar-gtk.c: * scrollbar-gtk.c (gtk_free_scrollbar_instance): * scrollbar-gtk.c (gtk_release_scrollbar_instance): * scrollbar-msw.c: * scrollbar-msw.c (mswindows_free_scrollbar_instance): * scrollbar-msw.c (unshow_that_mofo): * scrollbar-x.c (x_free_scrollbar_instance): * scrollbar-x.c (x_release_scrollbar_instance): * select-x.c: * select-x.c (x_handle_selection_request): * syntax.c: * syntax.c (uninit_buffer_syntax_cache): * text.h (eifree): If possible, whenever we call xfree() on a field in a structure, set the field to 0 afterwards. A lot of code is written so that it checks the value being freed to see if it is non-zero before freeing it -- doing this and setting the value to 0 afterwards ensures (a) we won't try to free twice if the cleanup code is called twice; (b) if the object itself stays around, KKCC won't crash when attempting to mark the freed field. * rangetab.c: Add a finalization method when not NEW_GC to avoid memory leaks. (#### We still get memory leaks when NEW_GC; need to convert gap array to Lisp object).
author Ben Wing <ben@xemacs.org>
date Wed, 24 Mar 2010 01:22:51 -0500
parents 99f8ebc082d9
children 308d34e9f07d
line wrap: on
line source

/* Execution of byte code produced by bytecomp.el.
   Implementation of compiled-function objects.
   Copyright (C) 1992, 1993 Free Software Foundation, Inc.
   Copyright (C) 1995, 2002, 2010 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: Mule 2.0, FSF 19.30. */

/* There is more than one place in bytecode.c that may want to do something
   with the list of all the opcodes.  To handle this, we extract them into
   a separate file that can get included after defining OPCODE(sym, val)
   appropriately.  No need to undefine OPCODE; that happens automatically.
*/

  OPCODE (varref,  			010)
  OPCODE (varset,  			020)
  OPCODE (varbind, 			030)
  OPCODE (call,    			040)
  OPCODE (unbind,  			050)

  OPCODE (nth,     			070)
  OPCODE (symbolp, 			071)
  OPCODE (consp,   			072)
  OPCODE (stringp, 			073)
  OPCODE (listp,   			074)
  OPCODE (old_eq,  			075)
  OPCODE (old_memq, 			076)
  OPCODE (not,    			077)
  OPCODE (car,    			0100)
  OPCODE (cdr, 	  			0101)
  OPCODE (cons,   			0102)
  OPCODE (list1,  			0103)
  OPCODE (list2,  			0104)
  OPCODE (list3,  			0105)
  OPCODE (list4,  			0106)
  OPCODE (length, 			0107)
  OPCODE (aref,   			0110)
  OPCODE (aset,   			0111)
  OPCODE (symbol_value, 		0112)
  OPCODE (symbol_function, 		0113)
  OPCODE (set,    			0114)
  OPCODE (fset,   			0115)
  OPCODE (get,    			0116)
  OPCODE (subseq, 			0117)
  OPCODE (concat2, 			0120)
  OPCODE (concat3, 			0121)
  OPCODE (concat4, 			0122)
  OPCODE (sub1, 			0123)
  OPCODE (add1, 			0124)
  OPCODE (eqlsign, 			0125)
  OPCODE (gtr, 				0126)
  OPCODE (lss, 				0127)
  OPCODE (leq, 				0130)
  OPCODE (geq, 				0131)
  OPCODE (diff, 			0132)
  OPCODE (negate, 			0133)
  OPCODE (plus, 			0134)
  OPCODE (max, 				0135)
  OPCODE (min, 				0136)
  OPCODE (mult, 			0137)

  OPCODE (point, 			0140)
  OPCODE (eq, 				0141) /* was Bmark, but no longer
						 generated as of v18 */
  OPCODE (goto_char, 			0142)
  OPCODE (insert, 			0143)
  OPCODE (point_max, 			0144)
  OPCODE (point_min, 			0145)
  OPCODE (char_after, 			0146)
  OPCODE (following_char, 		0147)
  OPCODE (preceding_char, 		0150)
  OPCODE (current_column, 		0151)
  OPCODE (indent_to, 			0152)
  OPCODE (equal, 			0153) /* was Bscan_buffer, but no
						 longer generated as of
						 v18 */
  OPCODE (eolp, 			0154)
  OPCODE (eobp, 			0155)
  OPCODE (bolp, 			0156)
  OPCODE (bobp, 			0157)
  OPCODE (current_buffer, 		0160)
  OPCODE (set_buffer, 			0161)
  OPCODE (save_current_buffer, 		0162) /* was Bread_char, but no
						 longer generated as of
						 v19 */
  OPCODE (memq, 			0163) /* was Bset_mark, but no
						 longer generated as of
						 v18 */
  OPCODE (interactive_p, 		0164) /* Needed since interactive-p
						 takes unevalled args */
  OPCODE (forward_char, 		0165)
  OPCODE (forward_word, 		0166)
  OPCODE (skip_chars_forward, 		0167)
  OPCODE (skip_chars_backward, 		0170)
  OPCODE (forward_line, 		0171)
  OPCODE (char_syntax, 			0172)
  OPCODE (buffer_substring, 		0173)
  OPCODE (delete_region, 		0174)
  OPCODE (narrow_to_region, 		0175)
  OPCODE (widen, 			0176)
  OPCODE (end_of_line, 			0177)

  OPCODE (constant2, 			0201)
  OPCODE (goto, 			0202)
  OPCODE (gotoifnil, 			0203)
  OPCODE (gotoifnonnil, 		0204)
  OPCODE (gotoifnilelsepop, 		0205)
  OPCODE (gotoifnonnilelsepop, 		0206)
  OPCODE (return, 			0207)
  OPCODE (discard, 			0210)
  OPCODE (dup, 				0211)

  OPCODE (save_excursion, 		0212)
  OPCODE (save_window_excursion,	0213)
  OPCODE (save_restriction, 		0214)
  OPCODE (catch, 			0215)

  OPCODE (unwind_protect, 		0216)
  OPCODE (condition_case, 		0217)
  OPCODE (temp_output_buffer_setup, 	0220)
  OPCODE (temp_output_buffer_show,  	0221)

  OPCODE (unbind_all,			0222)

  OPCODE (set_marker,			0223)
  OPCODE (match_beginning,		0224)
  OPCODE (match_end,			0225)
  OPCODE (upcase,			0226)
  OPCODE (downcase,			0227)

  OPCODE (string_equal, 		0230)
  OPCODE (string_lessp,     		0231)
  OPCODE (old_equal, 	 		0232)
  OPCODE (nthcdr, 	 		0233)
  OPCODE (elt, 		 		0234)
  OPCODE (old_member, 	 		0235)
  OPCODE (old_assq, 	 		0236)
  OPCODE (nreverse, 	 		0237)
  OPCODE (setcar, 	 		0240)
  OPCODE (setcdr, 	 		0241)
  OPCODE (car_safe, 	 		0242)
  OPCODE (cdr_safe, 	 		0243)
  OPCODE (nconc, 	 		0244)
  OPCODE (quo, 		 		0245)
  OPCODE (rem, 		 		0246)
  OPCODE (numberp, 	 		0247)
  OPCODE (fixnump, 	 		0250) /* Was Bintegerp. */

  OPCODE (Rgoto, 			0252)
  OPCODE (Rgotoifnil, 			0253)
  OPCODE (Rgotoifnonnil, 		0254)
  OPCODE (Rgotoifnilelsepop, 		0255)
  OPCODE (Rgotoifnonnilelsepop, 	0256)

  OPCODE (listN, 			0257)
  OPCODE (concatN, 			0260)
  OPCODE (insertN, 			0261)

  OPCODE (bind_multiple_value_limits,   0262) /* New in 21.5. */
  OPCODE (multiple_value_list_internal, 0263) /* New in 21.5. */
  OPCODE (multiple_value_call,          0264) /* New in 21.5. */
  OPCODE (throw,                        0265) /* New in 21.5. */

  OPCODE (member, 			0266) /* new in v20 */
  OPCODE (assq, 			0267) /* new in v20 */

  OPCODE (constant,			0300)

#undef OPCODE