annotate src/alloca.s @ 5127:a9c41067dd88 ben-lisp-object

more cleanups, terminology clarification, lots of doc work -------------------- ChangeLog entries follow: -------------------- man/ChangeLog addition: 2010-03-05 Ben Wing <ben@xemacs.org> * internals/internals.texi (Introduction to Allocation): * internals/internals.texi (Integers and Characters): * internals/internals.texi (Allocation from Frob Blocks): * internals/internals.texi (lrecords): * internals/internals.texi (Low-level allocation): Rewrite section on allocation of Lisp objects to reflect the new reality. Remove references to nonexistent XSETINT and XSETCHAR. modules/ChangeLog addition: 2010-03-05 Ben Wing <ben@xemacs.org> * postgresql/postgresql.c (allocate_pgconn): * postgresql/postgresql.c (allocate_pgresult): * postgresql/postgresql.h (struct Lisp_PGconn): * postgresql/postgresql.h (struct Lisp_PGresult): * ldap/eldap.c (allocate_ldap): * ldap/eldap.h (struct Lisp_LDAP): Same changes as in src/ dir. See large log there in ChangeLog, but basically: ALLOC_LISP_OBJECT -> ALLOC_NORMAL_LISP_OBJECT LISP_OBJECT_HEADER -> NORMAL_LISP_OBJECT_HEADER ../hlo/src/ChangeLog addition: 2010-03-05 Ben Wing <ben@xemacs.org> * alloc.c: * alloc.c (old_alloc_sized_lcrecord): * alloc.c (very_old_free_lcrecord): * alloc.c (copy_lisp_object): * alloc.c (zero_sized_lisp_object): * alloc.c (zero_nonsized_lisp_object): * alloc.c (lisp_object_storage_size): * alloc.c (free_normal_lisp_object): * alloc.c (FREE_FIXED_TYPE_WHEN_NOT_IN_GC): * alloc.c (ALLOC_FROB_BLOCK_LISP_OBJECT): * alloc.c (Fcons): * alloc.c (noseeum_cons): * alloc.c (make_float): * alloc.c (make_bignum): * alloc.c (make_bignum_bg): * alloc.c (make_ratio): * alloc.c (make_ratio_bg): * alloc.c (make_ratio_rt): * alloc.c (make_bigfloat): * alloc.c (make_bigfloat_bf): * alloc.c (size_vector): * alloc.c (make_compiled_function): * alloc.c (Fmake_symbol): * alloc.c (allocate_extent): * alloc.c (allocate_event): * alloc.c (make_key_data): * 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 (Fmake_marker): * alloc.c (noseeum_make_marker): * alloc.c (size_string_direct_data): * alloc.c (make_uninit_string): * alloc.c (make_string_nocopy): * alloc.c (mark_lcrecord_list): * alloc.c (alloc_managed_lcrecord): * alloc.c (free_managed_lcrecord): * alloc.c (sweep_lcrecords_1): * alloc.c (malloced_storage_size): * buffer.c (allocate_buffer): * buffer.c (compute_buffer_usage): * buffer.c (DEFVAR_BUFFER_LOCAL_1): * buffer.c (nuke_all_buffer_slots): * buffer.c (common_init_complex_vars_of_buffer): * buffer.h (struct buffer_text): * buffer.h (struct buffer): * bytecode.c: * bytecode.c (make_compiled_function_args): * bytecode.c (size_compiled_function_args): * bytecode.h (struct compiled_function_args): * casetab.c (allocate_case_table): * casetab.h (struct Lisp_Case_Table): * charset.h (struct Lisp_Charset): * chartab.c (fill_char_table): * chartab.c (Fmake_char_table): * chartab.c (make_char_table_entry): * chartab.c (copy_char_table_entry): * chartab.c (Fcopy_char_table): * chartab.c (put_char_table): * chartab.h (struct Lisp_Char_Table_Entry): * chartab.h (struct Lisp_Char_Table): * console-gtk-impl.h (struct gtk_device): * console-gtk-impl.h (struct gtk_frame): * console-impl.h (struct console): * console-msw-impl.h (struct Lisp_Devmode): * console-msw-impl.h (struct mswindows_device): * console-msw-impl.h (struct msprinter_device): * console-msw-impl.h (struct mswindows_frame): * console-msw-impl.h (struct mswindows_dialog_id): * console-stream-impl.h (struct stream_console): * console-stream.c (stream_init_console): * console-tty-impl.h (struct tty_console): * console-tty-impl.h (struct tty_device): * console-tty.c (allocate_tty_console_struct): * console-x-impl.h (struct x_device): * console-x-impl.h (struct x_frame): * console.c (allocate_console): * console.c (nuke_all_console_slots): * console.c (DEFVAR_CONSOLE_LOCAL_1): * console.c (common_init_complex_vars_of_console): * data.c (make_weak_list): * data.c (make_weak_box): * data.c (make_ephemeron): * database.c: * database.c (struct Lisp_Database): * database.c (allocate_database): * database.c (finalize_database): * device-gtk.c (allocate_gtk_device_struct): * device-impl.h (struct device): * device-msw.c: * device-msw.c (mswindows_init_device): * device-msw.c (msprinter_init_device): * device-msw.c (finalize_devmode): * device-msw.c (allocate_devmode): * device-tty.c (allocate_tty_device_struct): * device-x.c (allocate_x_device_struct): * device.c: * device.c (nuke_all_device_slots): * device.c (allocate_device): * dialog-msw.c (handle_question_dialog_box): * elhash.c: * elhash.c (struct Lisp_Hash_Table): * elhash.c (finalize_hash_table): * elhash.c (make_general_lisp_hash_table): * elhash.c (Fcopy_hash_table): * elhash.h (htentry): * emacs.c (main_1): * eval.c: * eval.c (size_multiple_value): * event-stream.c (finalize_command_builder): * event-stream.c (allocate_command_builder): * event-stream.c (free_command_builder): * event-stream.c (event_stream_generate_wakeup): * event-stream.c (event_stream_resignal_wakeup): * event-stream.c (event_stream_disable_wakeup): * event-stream.c (event_stream_wakeup_pending_p): * events.h (struct Lisp_Timeout): * events.h (struct command_builder): * extents-impl.h: * extents-impl.h (struct extent_auxiliary): * extents-impl.h (struct extent_info): * extents-impl.h (set_extent_no_chase_aux_field): * extents-impl.h (set_extent_no_chase_normal_field): * extents.c: * extents.c (gap_array_marker): * extents.c (gap_array): * extents.c (extent_list_marker): * extents.c (extent_list): * extents.c (stack_of_extents): * extents.c (gap_array_make_marker): * extents.c (extent_list_make_marker): * extents.c (allocate_extent_list): * extents.c (SLOT): * extents.c (mark_extent_auxiliary): * extents.c (allocate_extent_auxiliary): * extents.c (attach_extent_auxiliary): * extents.c (size_gap_array): * extents.c (finalize_extent_info): * extents.c (allocate_extent_info): * extents.c (uninit_buffer_extents): * extents.c (allocate_soe): * extents.c (copy_extent): * extents.c (vars_of_extents): * extents.h: * faces.c (allocate_face): * faces.h (struct Lisp_Face): * faces.h (struct face_cachel): * file-coding.c: * file-coding.c (finalize_coding_system): * file-coding.c (sizeof_coding_system): * file-coding.c (Fcopy_coding_system): * file-coding.h (struct Lisp_Coding_System): * file-coding.h (MARKED_SLOT): * fns.c (size_bit_vector): * font-mgr.c: * font-mgr.c (finalize_fc_pattern): * font-mgr.c (print_fc_pattern): * font-mgr.c (Ffc_pattern_p): * font-mgr.c (Ffc_pattern_create): * font-mgr.c (Ffc_name_parse): * font-mgr.c (Ffc_name_unparse): * font-mgr.c (Ffc_pattern_duplicate): * font-mgr.c (Ffc_pattern_add): * font-mgr.c (Ffc_pattern_del): * font-mgr.c (Ffc_pattern_get): * font-mgr.c (fc_config_create_using): * font-mgr.c (fc_strlist_to_lisp_using): * font-mgr.c (fontset_to_list): * font-mgr.c (Ffc_config_p): * font-mgr.c (Ffc_config_up_to_date): * font-mgr.c (Ffc_config_build_fonts): * font-mgr.c (Ffc_config_get_cache): * font-mgr.c (Ffc_config_get_fonts): * font-mgr.c (Ffc_config_set_current): * font-mgr.c (Ffc_config_get_blanks): * font-mgr.c (Ffc_config_get_rescan_interval): * font-mgr.c (Ffc_config_set_rescan_interval): * font-mgr.c (Ffc_config_app_font_add_file): * font-mgr.c (Ffc_config_app_font_add_dir): * font-mgr.c (Ffc_config_app_font_clear): * font-mgr.c (size): * font-mgr.c (Ffc_config_substitute): * font-mgr.c (Ffc_font_render_prepare): * font-mgr.c (Ffc_font_match): * font-mgr.c (Ffc_font_sort): * font-mgr.c (finalize_fc_config): * font-mgr.c (print_fc_config): * font-mgr.h: * font-mgr.h (struct fc_pattern): * font-mgr.h (XFC_PATTERN): * font-mgr.h (struct fc_config): * font-mgr.h (XFC_CONFIG): * frame-gtk.c (allocate_gtk_frame_struct): * frame-impl.h (struct frame): * frame-msw.c (mswindows_init_frame_1): * frame-x.c (allocate_x_frame_struct): * frame.c (nuke_all_frame_slots): * frame.c (allocate_frame_core): * gc.c: * gc.c (GC_CHECK_NOT_FREE): * glyphs.c (finalize_image_instance): * glyphs.c (allocate_image_instance): * glyphs.c (Fcolorize_image_instance): * glyphs.c (allocate_glyph): * glyphs.c (unmap_subwindow_instance_cache_mapper): * glyphs.c (register_ignored_expose): * glyphs.h (struct Lisp_Image_Instance): * glyphs.h (struct Lisp_Glyph): * glyphs.h (struct glyph_cachel): * glyphs.h (struct expose_ignore): * gui.c (allocate_gui_item): * gui.h (struct Lisp_Gui_Item): * keymap.c (struct Lisp_Keymap): * keymap.c (make_keymap): * lisp.h: * lisp.h (struct Lisp_String_Direct_Data): * lisp.h (struct Lisp_String_Indirect_Data): * lisp.h (struct Lisp_Vector): * lisp.h (struct Lisp_Bit_Vector): * lisp.h (DECLARE_INLINE_LISP_BIT_VECTOR): * lisp.h (struct weak_box): * lisp.h (struct ephemeron): * lisp.h (struct weak_list): * lrecord.h: * lrecord.h (struct lrecord_implementation): * lrecord.h (MC_ALLOC_CALL_FINALIZER): * lrecord.h (struct lcrecord_list): * lstream.c (finalize_lstream): * lstream.c (sizeof_lstream): * lstream.c (Lstream_new): * lstream.c (Lstream_delete): * lstream.h (struct lstream): * marker.c: * marker.c (finalize_marker): * marker.c (compute_buffer_marker_usage): * mule-charset.c: * mule-charset.c (make_charset): * mule-charset.c (compute_charset_usage): * objects-impl.h (struct Lisp_Color_Instance): * objects-impl.h (struct Lisp_Font_Instance): * objects-tty-impl.h (struct tty_color_instance_data): * objects-tty-impl.h (struct tty_font_instance_data): * objects-tty.c (tty_initialize_color_instance): * objects-tty.c (tty_initialize_font_instance): * objects.c (finalize_color_instance): * objects.c (Fmake_color_instance): * objects.c (finalize_font_instance): * objects.c (Fmake_font_instance): * objects.c (reinit_vars_of_objects): * opaque.c: * opaque.c (sizeof_opaque): * opaque.c (make_opaque_ptr): * opaque.c (free_opaque_ptr): * opaque.h: * opaque.h (Lisp_Opaque): * opaque.h (Lisp_Opaque_Ptr): * print.c (printing_unreadable_lcrecord): * print.c (external_object_printer): * print.c (debug_p4): * process.c (finalize_process): * process.c (make_process_internal): * procimpl.h (struct Lisp_Process): * rangetab.c (Fmake_range_table): * rangetab.c (Fcopy_range_table): * rangetab.h (struct Lisp_Range_Table): * scrollbar.c: * scrollbar.c (create_scrollbar_instance): * scrollbar.c (compute_scrollbar_instance_usage): * scrollbar.h (struct scrollbar_instance): * specifier.c (finalize_specifier): * specifier.c (sizeof_specifier): * specifier.c (set_specifier_caching): * specifier.h (struct Lisp_Specifier): * specifier.h (struct specifier_caching): * symeval.h: * symeval.h (SYMBOL_VALUE_MAGIC_P): * symeval.h (DEFVAR_SYMVAL_FWD): * symsinit.h: * syntax.c (init_buffer_syntax_cache): * syntax.h (struct syntax_cache): * toolbar.c: * toolbar.c (allocate_toolbar_button): * toolbar.c (update_toolbar_button): * toolbar.h (struct toolbar_button): * tooltalk.c (struct Lisp_Tooltalk_Message): * tooltalk.c (make_tooltalk_message): * tooltalk.c (struct Lisp_Tooltalk_Pattern): * tooltalk.c (make_tooltalk_pattern): * ui-gtk.c: * ui-gtk.c (allocate_ffi_data): * ui-gtk.c (emacs_gtk_object_finalizer): * ui-gtk.c (allocate_emacs_gtk_object_data): * ui-gtk.c (allocate_emacs_gtk_boxed_data): * ui-gtk.h: * window-impl.h (struct window): * window-impl.h (struct window_mirror): * window.c (finalize_window): * window.c (allocate_window): * window.c (new_window_mirror): * window.c (mark_window_as_deleted): * window.c (make_dummy_parent): * window.c (compute_window_mirror_usage): * window.c (compute_window_usage): Overall point of this change and previous ones in this repository: (1) Introduce new, clearer terminology: everything other than int or char is a "record" object, which comes in two types: "normal objects" and "frob-block objects". Fix up all places that referred to frob-block objects as "simple", "basic", etc. (2) Provide an advertised interface for doing operations on Lisp objects, including creating new types, that is clean and consistent in its naming, uses the above-referenced terms and avoids referencing "lrecords", "old lcrecords", etc., which should hide under the surface. (3) Make the size_in_bytes and finalizer methods take a Lisp_Object rather than a void * for consistency with other methods. (4) Separate finalizer method into finalizer and disksaver, so that normal finalize methods don't have to worry about disksaving. Other specifics: (1) Renaming: LISP_OBJECT_HEADER -> NORMAL_LISP_OBJECT_HEADER ALLOC_LISP_OBJECT -> ALLOC_NORMAL_LISP_OBJECT implementation->basic_p -> implementation->frob_block_p ALLOCATE_FIXED_TYPE_AND_SET_IMPL -> ALLOC_FROB_BLOCK_LISP_OBJECT *FCCONFIG*, wrap_fcconfig -> *FC_CONFIG*, wrap_fc_config *FCPATTERN*, wrap_fcpattern -> *FC_PATTERN*, wrap_fc_pattern (the last two changes make the naming of these macros consistent with the naming of all other macros, since the objects are named fc-config and fc-pattern with a hyphen) (2) Lots of documentation fixes in lrecord.h. (3) Eliminate macros for copying, freeing, zeroing objects, getting their storage size. Instead, new functions: zero_sized_lisp_object() zero_nonsized_lisp_object() lisp_object_storage_size() free_normal_lisp_object() (copy_lisp_object() already exists) LISP_OBJECT_FROB_BLOCK_P() (actually a macro) Eliminated: free_lrecord() zero_lrecord() copy_lrecord() copy_sized_lrecord() old_copy_lcrecord() old_copy_sized_lcrecord() old_zero_lcrecord() old_zero_sized_lcrecord() LISP_OBJECT_STORAGE_SIZE() COPY_SIZED_LISP_OBJECT() COPY_SIZED_LCRECORD() COPY_LISP_OBJECT() ZERO_LISP_OBJECT() FREE_LISP_OBJECT() (4) Catch the remaining places where lrecord stuff was used directly and use the advertised interface, e.g. alloc_sized_lrecord() -> ALLOC_SIZED_LISP_OBJECT(). (5) Make certain statically-declared pseudo-objects (buffer_local_flags, console_local_flags) have their lheader initialized correctly, so things like copy_lisp_object() can work on them. Make extent_auxiliary_defaults a proper heap object Vextent_auxiliary_defaults, and make extent auxiliaries dumpable so that this object can be dumped. allocate_extent_auxiliary() now just creates the object, and attach_extent_auxiliary() creates an extent auxiliary and attaches to an extent, like the old allocate_extent_auxiliary(). (6) Create EXTENT_AUXILIARY_SLOTS macro, similar to the foo-slots.h files but in a macro instead of a file. The purpose is to avoid duplication when iterating over all the slots in an extent auxiliary. Use it. (7) In lstream.c, don't zero out object after allocation because allocation routines take care of this. (8) In marker.c, fix a mistake in computing marker overhead. (9) In print.c, clean up printing_unreadable_lcrecord(), external_object_printer() to avoid lots of ifdef NEW_GC's. (10) Separate toolbar-button allocation into a separate allocate_toolbar_button() function for use in the example code in lrecord.h.
author Ben Wing <ben@xemacs.org>
date Fri, 05 Mar 2010 04:08:17 -0600
parents aa5ed11f473b
children 308d34e9f07d
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1 /* `alloca' standard 4.2 subroutine for 68000's and 16000's and others.
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2 Copyright (C) 1985, 1986, 1988 Free Software Foundation, Inc.
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3
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4 This file is part of XEmacs.
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5
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6 XEmacs is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published by the
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8 Free Software Foundation; either version 2, or (at your option) any
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9 later version.
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10
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11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs; see the file COPYING. If not, write to
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18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 Boston, MA 02111-1307, USA. */
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20
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21 /* Synched up with: FSF 19.30. */
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22
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23 /* Both 68000 systems I have run this on have had broken versions of alloca.
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24 Also, I am told that non-berkeley systems do not have it at all.
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25 So replace whatever system-provided alloca there may be
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26 on all 68000 systems. */
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27
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28 #define NOT_C_CODE
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29 #ifdef emacs
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30 #include <config.h>
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31 #else
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32 #include "config.h"
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33 #endif
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34
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35 #ifndef HAVE_ALLOCA /* define this to use system's alloca */
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36
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37 #ifndef m68k
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38 #ifndef m68000
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39 you
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40 lose!!
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41 #endif /* m68000 */
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42 #endif /* m68k */
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43
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44
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45 #ifdef m68k /* SGS assembler totally different */
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46 file "alloca.s"
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47 global alloca
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48 alloca:
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49 mov.l (%sp)+,%a1 # pop return addr from top of stack
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50 mov.l (%sp)+,%d0 # pop size in bytes from top of stack
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51 add.l &R%1,%d0 # round size up to long word
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52 and.l &-4,%d0 # mask out lower two bits of size
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53 sub.l %d0,%sp # allocate by moving stack pointer
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54 tst.b P%1(%sp) # stack probe to allocate pages
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55 mov.l %sp,%a0 # return pointer as pointer
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56 mov.l %sp,%d0 # return pointer as int to avoid disaster
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57 add.l &-4,%sp # new top of stack
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58 jmp (%a1) # not a normal return
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59 set S%1,64 # safety factor for C compiler scratch
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60 set R%1,3+S%1 # add to size for rounding
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61 set P%1,-132 # probe this far below current top of stack
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62
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63 #else /* not m68k */
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64
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65 #ifdef m68000
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66
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67 /* Some systems want the _, some do not. Win with both kinds. */
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68 .globl _alloca
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69 _alloca:
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70 .globl alloca
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71 alloca:
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72 movl sp@+,a0
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73 movl a7,d0
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74 subl sp@,d0
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75 andl #~3,d0
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76 movl d0,sp
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77 tstb sp@(0) /* Make stack pages exist */
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78 /* Needed on certain systems
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79 that lack true demand paging */
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80 addql #4,d0
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81 jmp a0@
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82
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83 #endif /* m68000 */
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84 #endif /* not m68k */
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85
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86 #endif /* not HAVE_ALLOCA */