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* configure.ac (CANNOT_DUMP): Remove. All uses removed,
or changed to the negative of with_unexec.
(HAVE_UNEXEC): New macro. All uses of CANNOT_DUMP changed
to the negative of this macro.
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Problem reported by Colin Baxter in:
https://lists.gnu.org/r/emacs-devel/2019-01/msg00321.html
* src/alloc.c (my_heap_start): Also define if
GNU_LINUX && CANNOT_DUMP && DOUG_LEA_MALLOC.
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Add a new portable dumper as an alternative to unexec. Use it by default.
* src/dmpstruct.awk: New file.
* src/doc.c (get_doc_string): use will_dump_p().
* src/editfns.c (styled_format): silence compiler warning
with UNINIT.
* src/emacs-module.c (syms_of_module): staticpro ltv_mark.
* src/emacs.c (gflags): new variable.
(init_cmdargs): unwrap
(string_starts_with_p, find_argument, dump_error_to_string)
(load_pdump): new functions.
(main): detect pdumper and --temacs invocation; actually load
portable dump when detected; set gflags as appropriate; changes to
init functions throughout to avoid passing explicit
'initialized' argument.
* src/eval.c (inhibit_lisp_code): remove unused variable.
(init_eval_once_for_pdumper): new function.
(init_eval_once): call it.
* src/filelock.c: CANNOT_DUMP -> will_dump_p()
* src/fingerprint-dummy.c: new file
* src/fingerprint.h: new file
* src/fns.c: CANNOT_DUMP -> will_dump_p(), etc.
(weak_hash_tables): remove
(hashfn_equal, hashfn_eql): un-staticify
(make_hash_table): set new 'next_weak' hash table field; drop
global weak_hash_tables logic.
(copy_hash_table): drop global weak_hash_tables logic.
(hash_table_rehash): new function.
(hash_lookup, hash_put, hash_remove_from_table, hash_clear):
rehash if needed.
(sweep_weak_table): un-staticify; explain logic; bool-ify.
(sweep_weak_hash_tables): remove function.
* src/font.c (syms_of_font): remember pdumper stuff.
* src/fontset.c (syms_of_fontset): remember pdumper stuff.
* src/frame.c (make_initial_frame): don't reset Vframe_list.
(init_frame_once_for_pdumper, init_frame_once): new functions.
(syms_of_frame): remove redundant staticpro.
* src/fringe.c (init_fringe_once_for_pdumper): new functin.
(init_fringe_once): call it.
* src/ftcrfont.c (syms_of_ftcrfont_for_pdumper): new function.
(syms_of_ftcrfont): call it.
* src/ftfont.c (syms_of_ftfont_for_pdumper): new function.
(syms_of_ftfont): call it.
* src/ftxont.c (syms_of_ftxfont_for_pdumper): new function.
(syms_of_ftxfont): call it.
* src/gmalloc.c: adjust for pdumper througout
(DUMPED): remove weird custom dumped indicator.
* src/gnutls.c (syms_of_gnutls): pdumper note for
gnutls_global_initialized.
* src/image.c (syms_of_image): add pdumper comment,
initializer note.
* src/insdel.c (prepare_to_modify_buffer_1): account
for buffer contents possibly being in dump image.
* src/keyboard.c (syms_of_keyboard_for_pdumper): new function.
(syms_of_keyboard): staticpro more; call pdumper syms function.
* src/lisp.h: add comments throughout
(gflags): declare.
(will_dump_p, will_bootstrap_p, will_dump_with_pdumper_p)
(dumped_with_pdumper_p, will_dump_with_unexec_p)
(dumped_with_unexec_p, definitely_will_not_unexec_p): new
functions.
(POWER_OF_2, ROUNDUP): move macros.
(PSEUDOVECTOR_TYPE, PSEUDOVECTOR_TYPEP): take vectorlike header
pointer instead of vector; constify.
(Lisp_Hash_Table): add comment about need to rehash on access; add
comment for next_weak.
(HASH_KEY, HASH_VALUE, HASH_HASH, HASH_TABLE_SIZE): const-ify.
(hash_table_rehash): declare.
(hash_rehash_needed_p, hash_rehash_if_needed): new functions.
(finalizers, doomed_finalizers): declare extern.
(SUBR_SECTION_ATTRIBUTE): new macro.
(staticvec, staticidx): un-static-ify.
(sweep_weak_hash_tables): remove declaration.
(sweep_weak_table): declare.
(hashfn_eql, hashfn_equal): declare.
(number_finalizers_run): new variable.
(Vdead): externify when ENABLE_CHECKING.
(gc_root_type): new enumeration.
(gc_root_visitor): new struct.
(visit_static_gc_roots): declare.
(vectorlike_nbytes): declare.
(vector_nbytes): define as trivial inline function wrapper for
vectorlike_nbytes.
(init_obarray_once): change signature.
(primary_thread): extern-ify.
(init_buffer): change signature.
(init_frame_once): declare.
* src/lread.c (readevalloop): adjust for new dumped predicates.
(init_obarray_once): new function.
(ndefsubr): new variable.
(defsubr): increment it.
(load_path_check): adjust for pdumper.
(load_path_default): use pdumper functions; adjust for
dump search.
* src/macfont.m (macfont_init_font_change_handler): avoid
shadowing global.
(syms_of_macfont_for_pdumper): new function.
(syms_of_macfont): call it.
* src/menu.c (syms_of_menu): staticpro more stuff.
* src/minibuf.c (Ftry_completion): rehash if needed.
(init_minibuf_once_for_pdumper): new function.
(init_minibuf_once): call it.
* src/nsfont.m (syms_of_nsfns): staticpro more.
* src/nsfont.m (syms_of_nsfont_for_pdumper): new function.
(syms_of_nsfont): call it.
* src/nsterm.m (syms_of_nsfont): remember pdumper stuff.
* src/pdumper.c: new file.
* src/pdumper.h: new file.
* src/process.c (init_process_emacs): use new pdumper functions
instead of CANNOT_DUMP.
* src/profiler.c (syms_of_profiler_for_pdumper): new function.
(syms_of_profiler_for_pdumper): call it.
* src/search.c (syms_of_search_for_pdumper): new function.
(syms_of_search_for_pdumper): call it.
* src/sheap.c (bss_sbrk_did_unexec): remove.
* src/sheap.h (bss_sbrk_did_unexec): remove.
* src/syntax.c (syms_of_syntax): don't redundantly staticpro
re_match_object.
* src/sysdep.c: use will_dump_with_unexec_p() instead of bss
hack thing.
* src/syssignals.h (init_sigsegv): declare.
* src/systime.h (init_timefns): remove bool from signature.
* src/textprop.c (syms_of_textprop): move staticpro.
* src/thread.c (main_thread_p): constify.
* src/thread.h (main_thread_p): constify.
* src/timefns.c (init_timefns): remove bool from signature.
(syms_of_timefns_for_pdumper): new function.
(syms_of_timefns): call it.
* src/w32.c: rearrange code.
* src/w32.h (w32_relocate): declare.
* src/w32fns.c (syms_of_w32fns): add pdumper note.
* src/w32font.c (syms_of_w32font_for_pdumper): new function.
(syms_of_w32font): call it.
* src/w32heap.c (using_dynamic_heap): new variable.
(init_heap): use it.
* src/w32menu.c (syms_of_w32menu): add pdumper note.
* src/w32proc.c
(ctrl_c_handler, mainCRTStartup, _start, open_input_file)
(rva_to_section, close_file_data): move here.
* src/w32uniscribe.c (syms_of_w32uniscribe_for_pdumper):
new function.
(syms_of_w32uniscribe): call it.
* src/window.c (init_window_once_for_pdumper): new function.
(init_window_once): call it; staticpro more stuff.
* src/xfont.c (syms_of_xfont_for_pdumper): new function.
(syms_of_xfont): call it.
* src/xftfont.c (syms_of_xftfont_for_pdumper): new function.
(syms_of_xftfont): call it.
* src/xmenu.c (syms_of_xmenu_for_pdumper): new function.
(syms_of_xmenu): call it.
* src/xselect.c (syms_of_xselect_for_pdumper): new function.
(syms_of_xselect): call it.
* src/xsettings.c (syms_of_xsettings): add more pdumper notes.
* src/term.c (syms_of_xterm): add pdumper note.
* src/dispnew.c (init_faces_initial): new function.
(init_display_interactive): rename from init_display; use
will_dump_p instead of !initialized. Initialize faces early for
pdumper if needed.
(init_display): new function.
(syms_of_display_for_pdumper): new function.
(syms_of_display): call it.
* src/dbusbind.c (syms_of_dbusbind): Add TODO for bus reset
on pdumper load.
* src/data.c (Fdefalias): Use will_dump_p
instead of Vpurify_flag.
(Fmake_variable_buffer_local): silence compiler warning with -Og
by making valcontents UNINIT.
(arith_driver): silence compiler warning with UNINIT.
* src/conf_post.h (ATTRIBUTE_SECTION): new macro.
* src/composite.c (composition_gstring_put_cache): rehash hash
table if needed.
* src/coding.c (init_coding_once, syms_of_coding): remember
pdumper stuff.
* src/charset.h (charset_table_size, charset_table_user): declare.
* src/charset.c (charset_table_used, charset_table_size): un-static.
(init_charset_oncem, syms_of_charset): remember pdumper stuff.
* src/category.c (category_table_version): remove obsolete
variable.
* src/callint.c (syms_of_callint): staticpro 'preserved_fns'
(init_callproc): use will_dump_p instead of !CANNOT_DUMP.
* src/bytecode.c (exec_byte_code): rehash table tables if needed
* src/buffer.c (alloc_buffer_text, free_buffer_text): account for
pdumper
(init_buffer_once): add TODO; remember stuff for pdumper.
(init_buffer): don't take initialized argument; adjust
for pdumper.
* src/atimer.c (init_atimer): initialize subr only if
!initialized.
* src/alloc.c: (vector_marked_p, set_vector_marked)
(vectorlike_marked_p, set_vectorlike_marked, cons_marked_p)
(set_cons_marked, string_marked_p, set_string_marked)
(symbol_marked_p, set_symbol_marked, interval_marked_p)
(set_interval_marked): new accessor routines. Use them
instead of raw GC access throughout.
(Vdead): make non-static when ENABLE_CHECKING.
(vectorlike_nbytes): rename of 'vector_nbytes'; take a vectorlike
header as input instead of a vector.
(number_finalizers_run): new internal C variable.
(mark_maybe_object): check for pdumper objects.
(valid_pointer_p): don't be gratuitously inefficient under rr(1).
(make_pure_c_string): add support for size_byte = -2 mode
indicating that string data points into Emacs image rodata.
(visit_vectorlike_root): visits GC roots embedded in
vectorlike objects.
(visit_buffer_root): visits GC roots embedded in
our totally-not-a-buffer buffer global objects.
(visit_static_gc_roots): visit GC roots in the Emacs data section.
(mark_object_root_visitor): root callback used for conventional GC
marking
(weak_hash_tables): new internal variable for tracking found weak
hash tables during GC.
(mark_and_sweep_weak_table_contents): new weak hash table marking.
(garbage_collect_1): use new GC root visitor machinery.
(mark_vectorlike): accept a vectorlike_header instead of a
Lisp_Vector.
(mark_frame, mark_window, mark_hash_table): new functions.
(mark_object): initialize 'm'; check for pdumper objects and use
new mark-bit accessors throughout. Remove some object-specific
marking code and move to helper functions above.
(survives_gc_p): check for pdumper objects.
(gc-sweep): clear pdumper mark bits.
(init_alloc_once_for_pdumper): new helper function for early init
called both during normal init and pdumper load.
(init_alloc_once): pdumper integration.
* src/Makefile.in: Rewrite dumping for pdumper; add pdumper.o;
invoke temacs with --temacs command line option; build dmpstruct.h
from dmpstruct.awk; stop relying on CANNOT_DUMP; clean up pdumper
intermediate files during build.
* nextstep/Makefile.in: build emacs.pdmp into NS packages
* lisp/startup.el: account for new '--temacs' and '--dump-file'
command line option.
* lisp/loadup.el: rewrite early init to account for pdumper; use
injected 'dump-mode' variable (set via the new '--temacs' option)
instead of parsing command line.
* lisp/cus-start.el: Check 'dump-mode' instead of 'purify-flag',
since the new 'dump-mode'
* lib-src/make-fingerprint.c: new program
* lib-src/Makefile.in: built make-fingerprint utility program
* configure.ac: Add --with-pdumper toggle to control pdumper
support; add --with-unexec toggle to control unexec support.
Add --with-dumping option to control which dumping strategy we use
by default. Adjust for pdumper throughout. Check for
posix_madvise.
* Makefile.in: Add @DUMPING@ substitution; add pdumper mode.
* .gitignore: Add make-fingerprint, temacs.in, fingerprint.c,
dmpstruct.h, and pdumper dump files.
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Without this patch, it was theoretically possible for a list
length to be a bignum, which means that safe-length could
signal an error (due to generating a too-large bignum) contrary
to its documentation. Fix things to remove the theoretical
possibility, so that list lengths are always fixnums (and so
that list lenghts are always ptrdiff_t values too, since that
is assumed internally anyway).
* src/alloc.c (Fcons): Do not allocate so many conses that
a list length won’t fit into ptrdiff_t or into fixnum.
This matters only on weird platforms; on typical platforms,
list lengths always fit anyway.
* src/fns.c (list_length, Fsafe_length, proper-list-p):
Remove integer overflow checks that are no longer needed.
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Do not limit the results of garbage-collect and memory-use-counts
to fixnums, as they might be bignums now on 32-bit hosts.
* src/lisp.h (byte_ct): New type.
* src/alloc.c (object_ct): New type.
(consing_since_gc, gc_relative_threshold)
(memory_full_cons_threshold, total_string_bytes):
Now byte_ct, not EMACS_INT.
(total_conses, total_symbols, total_buffers, total_free_conses)
(total_free_symbols, total_free_floats, total_floats)
(total_free_intervals, total_intervals, total_strings)
(total_free_strings, total_vectors, total_vector_slots)
(total_free_vector_slots): Now object_ct, not EMACS_INT.
(bounded_number): Remove. All uses removed.
(object_bytes): New function.
(total_bytes_of_live_objects, garbage_collect_1): Use byte_ct,
not size_t, to count total GC bytes where multiple objects are
involved.
(garbage_collect_1, Fmemory_use_counts):
Do not limit returned counts to fixnums.
(sweep_conses, sweep_floats, sweep_intervals, sweep_symbols):
Use object_ct, not EMACS_INT, to count GC objects.
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2fcf2df Fix copyright years by hand
26bed8b Update copyright year to 2019
2814292 Fix value of default frame height. (Bug#33921)
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Run 'TZ=UTC0 admin/update-copyright $(git ls-files)'.
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This makes the callers a bit easier to read, and doubtless
improves efficiency very slightly. It also simplifies
possible future changes to allow bignum indexes to buffers.
* src/alloc.c (allocate_vectorlike):
Prefer ptrdiff_t to size_t when either will do.
(make_vector): New function.
(Fmake_vector): Use it.
* src/buffer.c (syms_of_buffer):
* src/bytecode.c (syms_of_bytecode):
* src/category.c (Fmake_category_table, init_category_once):
* src/ccl.c (syms_of_ccl):
* src/character.c (syms_of_character):
* src/charset.c (Fdefine_charset_internal)
(Ffind_charset_region, Ffind_charset_string):
* src/chartab.c (copy_char_table):
* src/coding.c (Fdefine_coding_system_internal, syms_of_coding):
* src/composite.c (get_composition_id, Fcomposition_get_gstring):
* src/composite.h (LGLYPH_NEW):
* src/fns.c (concat, Flocale_info, make_hash_table):
* src/font.c (font_otf_ValueRecord, font_otf_anchor)
(build_style_table, syms_of_font):
* src/fontset.c (RFONT_DEF_NEW, fontset_find_font)
(dump_fontset, syms_of_fontset):
* src/image.c (xpm_make_color_table_v):
* src/keyboard.c (modify_event_symbol, menu_bar_items)
(parse_menu_item, parse_tool_bar_item, init_tool_bar_items)
(syms_of_keyboard):
* src/keymap.c (Fdefine_key, describe_map, describe_vector):
* src/lread.c (read_vector):
* src/macfont.m (macfont_shape):
* src/menu.c (init_menu_items):
* src/nsfns.m (ns_make_monitor_attribute_list):
* src/process.c (conv_sockaddr_to_lisp, network_interface_info):
* src/profiler.c (make_log):
* src/window.c (Fcurrent_window_configuration):
* src/xdisp.c (with_echo_area_buffer_unwind_data)
(format_mode_line_unwind_data):
* src/xfaces.c (Finternal_make_lisp_face)
(Fface_attributes_as_vector):
* src/xfns.c (x_make_monitor_attribute_list)
(Fx_display_monitor_attributes_list):
* src/xfont.c (syms_of_xfont):
* src/xselect.c (x_handle_dnd_message):
* src/xwidget.c (save_script_callback):
Prefer make_nil_vector (N) to Fmake_vector (make_fixnum (N), Qnil).
* src/callint.c (Fcall_interactively):
* src/charset.c (load_charset_map):
* src/chartab.c (Fmake_char_table, uniprop_encode_value_numeric):
* src/composite.c (get_composition_id)
* src/dispnew.c (Fframe_or_buffer_changed_p)
(syms_of_display):
* src/fns.c (make_hash_table, maybe_resize_hash_table):
* src/font.c (font_style_to_value):
* src/fontset.c (FONTSET_ADD, fontset_add):
* src/json.c (json_to_lisp):
* src/keymap.c (syms_of_keymap):
* src/lread.c (init_obarray):
* src/profiler.c (make_log, Fprofiler_cpu_log):
* src/term.c (term_get_fkeys_1):
Prefer make_vector (N, V) to Fmake_vector (make_fixnum (N), V).
* src/font.c (build_style_table):
* src/macfont.m (macfont_shape):
* src/process.c (conv_sockaddr_to_lisp, network_interface_info):
Prefer make_uninit_vector if the vector will be initialized soon.
* src/lisp.h (make_nil_vector): New function.
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Problem reported by Eli Zaretskii in:
https://lists.gnu.org/r/emacs-devel/2018-12/msg00182.html
* src/alloc.c (VECTOR_ELTS_MAX): Now a macro.
Needed for portability to older GCC and non-GCC.
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* src/alloc.c (VECTOR_ELTS_MAX): New constant.
(allocate_vectorlike): LEN now must be positive. Assume LEN
is in range. All callers changed.
(allocate_vector): Arg is now ptrdiff_t, not EMACS_INT.
All callers changed. Return zero vector here, not in
allocate_vectorlike.
* src/lisp.h (make_uninit_vector): Simplify.
* src/xwidget.c (webkit_js_to_lisp):
Check for overflow in ptrdiff_t calculations.
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* src/alloc.c (allocate_vector): Fix integer overflow when
allocating very large vectors, by taking large_vector_offset
into account. Assume C99.
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* src/thread.c (unmark_main_thread): New function.
* src/lisp.h (unmark_main_thread): Prototype it.
* src/alloc.c (garbage_collect_1): Call it after sweeping.
(Bug#33073)
* test/src/thread-tests.el (threads-test-bug33073): New test.
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d28d54c (origin/emacs-26) More accurate docs for 'text-char-description'
b3baf99 Document synchronous behavior of eshell/make (Bug#32513)
98544ea Fix bs-show with wide characters (Bug#17822)
85af51b Improve Custom menu labels for 2 options
72a2a36 Improve wording of last change in dired-x.texi
d4fa83b Fix GnuTLS test suite with GnuTLS versions 3.4.x
b5bee6b Fix build with gnutls versions 3.0 to 3.2 (Bug#32446)
67eb80e ; * etc/enriched.txt (hanging-indents): Remove extra indent.
c71cfb7 Fix the Bubbles game on TTY frames
3bbf21b Add choice to reshow certificate information (Bug#31877)
6f2c471 * src/alloc.c (Fbool_vector, Flist, Fvector): Doc tweak.
39eecb3 * src/alloc.c (vector): Fix grammatical error in doc string: ...
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Use a simpler, consistent form.
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This better corresponds to what emacs-26 did in the
rare cases where it checked for integer overflow.
* src/alloc.c (range_error): Remove.
All uses changed to overflow_error.
* src/eval.c (overflow_error): New function.
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sizeof (struct Lisp_Marker) was 32 on x86, where 24 would do.
Problem noted by Stefan Monnier in:
https://lists.gnu.org/r/emacs-devel/2018-09/msg00165.html
* src/bignum.h (struct Lisp_Bignum):
* src/frame.h (struct frame):
* src/lisp.h (struct Lisp_Vector, struct Lisp_Bool_Vector)
(struct Lisp_Char_Table, struct Lisp_Hash_Table)
(struct Lisp_Marker, struct Lisp_Overlay)
(struct Lisp_Misc_Ptr, struct Lisp_User_Ptr)
(struct Lisp_Finalizer, struct Lisp_Float)
(struct Lisp_Module_Function):
* src/process.h (struct Lisp_Process):
* src/termhooks.h (struct terminal):
* src/thread.h (struct thread_state, struct Lisp_Mutex)
(struct Lisp_CondVar):
* src/window.c (struct save_window_data):
* src/window.h (struct window):
* src/xterm.h (struct scroll_bar):
* src/xwidget.h (struct xwidget, struct xwidget_view):
Add GCALIGNED_STRUCT attribute.
* src/lisp.h (GCALIGNED_UNION_MEMBER): Renamed from GCALIGNED_UNION.
All uses changed.
(GCALIGNED_STRUCT_MEMBER, GCALIGNED_STRUCT, GCALIGNED): New macros.
All uses of open-coded GCALIGNED changed to use GCALIGNED.
(union vectorlike_header): No longer GC-aligned.
(PSEUDOVECSIZE): Yield 0 for pseudovectors without Lisp
objects that place a member before where the first Lisp object
member would be.
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Problem reported by Andy Moreton in:
https://lists.gnu.org/r/emacs-devel/2018-09/msg00072.html
and crystal-ball diagnosis by Eli Zaretskii in:
https://lists.gnu.org/r/emacs-devel/2018-09/msg00075.html
* src/alloc.c (xrealloc_for_gmp, xfree_for_gmp): Move to bignum.c.
(init_alloc): Move bignum initialization to init_bignum.
* src/bignum.c (init_bignum): Rename from init_bignum_once.
All users changed.
* src/emacs.c (main): Call init_bignum after init_alloc,
instead of calling init_bignum_once after init_bignum.
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* src/bignum.c, src/bignum.h: New files. Only modules that
need to know how bignums are implemented should include
bignum.h. Currently these are alloc.c, bignum.c (of course),
data.c, emacs.c, emacs-module.c, floatfns.c, fns.c, print.c.
* src/Makefile.in (base_obj): Add bignum.o.
* src/alloc.c (make_bignum_str): Move to bignum.c.
(make_number): Remove; replaced by bignum.c’s make_integer.
All callers changed.
* src/conf_post.h (ARG_NONNULL): New macro.
* src/json.c (json_to_lisp): Use it.
* src/data.c (Fnatnump):
Move NATNUMP’s implementation here from lisp.h.
* src/data.c (Fnumber_to_string):
* src/editfns.c (styled_format):
Move conversion of string to bignum to bignum_to_string, and
call it here.
* src/emacs-module.c (module_make_integer):
* src/floatfns.c (Fabs):
Simplify by using make_int.
* src/emacs.c: Include bignum.h, to expand its inline fns.
* src/floatfns.c (Ffloat): Simplify by using XFLOATINT.
(rounding_driver): Simplify by using double_to_bignum.
(rounddiv_q): Clarify use of temporaries.
* src/lisp.h: Move decls that need to know bignum internals to
bignum.h. Do not include gmp.h or mini-gmp.h; that is now
bignum.h’s job.
(GMP_NUM_BITS, struct Lisp_Bignum, XBIGNUM, mpz_set_intmax):
Move to bignum.h.
(make_int): New function.
(NATNUMP): Remove; all callers changed to use Fnatnump.
(XFLOATINT): If arg is a bignum, use bignum_to_double, so that
bignum internals are not exposed here.
* src/print.c (print_vectorlike): Use SAFE_ALLOCA to avoid the
need for a record_unwind_protect_ptr.
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* src/alloc.c (Fmemory_use_counts): The list we return now has
only 7 elements, not 8. (Bug#32531)
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Also, since Emacs historically reported a range error when
rounding operations overflowed, do that consistently for all
bignum overflows.
* doc/lispref/errors.texi (Standard Errors):
* doc/lispref/numbers.texi (Integer Basics): Document range errors.
* src/alloc.c (range_error): Rename from integer_overflow.
All uses changed.
* src/floatfns.c (rounding_driver): When the result of a floating
point rounding operation does not fit into a fixnum, put it
into a bignum instead of always signaling an range error.
* test/src/floatfns-tests.el (divide-extreme-sign):
These tests now return the mathematically-correct answer
instead of signaling an error.
(bignum-round): Check that integers round to themselves.
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libgmp calls ‘abort’ when given numbers too big for its
internal data structures. The numeric limit is large and
platform-dependent; with 64-bit GMP 6.1.2 it is around
2**2**37. Work around the problem by refusing to call libgmp
functions with arguments that would cause an abort. With luck
libgmp will have a better way to do this in the future.
Also, introduce a variable integer-width that lets the user
control how large bignums can be. This currently defaults
to 2**16, i.e., it allows bignums up to 2**2**16. This
should be enough for ordinary computation, and should
help Emacs to avoid thrashing or hanging.
Problem noted by Pip Cet (Bug#32463#71).
* doc/lispref/numbers.texi, etc/NEWS:
Document recent bignum changes, including this one.
Improve documentation for bitwise operations, in the light
of bignums.
* src/alloc.c (make_number): Enforce integer-width.
(integer_overflow): New function.
(xrealloc_for_gmp, xfree_for_gmp):
Move here from emacs.c, as it's memory allocation.
(init_alloc): Initialize GMP here, rather than in emacs.c.
(integer_width): New var.
* src/data.c (GMP_NLIMBS_MAX, NLIMBS_LIMIT): New constants.
(emacs_mpz_size, emacs_mpz_mul)
(emacs_mpz_mul_2exp, emacs_mpz_pow_ui): New functions.
(arith_driver, Fash, expt_integer): Use them.
(expt_integer): New function, containing integer code
that was out of place in floatfns.c.
(check_bignum_size, xmalloc_for_gmp): Remove.
* src/emacs.c (main): Do not initialize GMP here.
* src/floatfns.c (Fexpt): Use expt_integer, which
now contains integer code moved from here.
* src/lisp.h (GMP_NUMB_BITS): Define if gmp.h doesn’t.
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* src/alloc.c (mpz_set_intmax_slow): Tighten assertion.
Work even in the unlikely case where libgmp uses nails.
* src/data.c (FIXNUMS_FIT_IN_LONG): New constant.
(arith_driver): Use it to tighten compile-time checks.
* src/lisp.h (mpz_set_intmax): Do not assume that converting
an out-of-range value to ‘long’ is harmless, as it might raise
a signal. Use simpler expression; compiler can optimize.
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These tuneups and minor simplifications should affect only
platforms with EMACS_INT wider than ‘long’.
* src/alloc.c (make_number): If the number fits in long but
not in fixnum, do not attempt to convert to fixnum again.
Tighten the compile-time check for whether the second attempt
is worth trying, from sizeof (long) < sizeof (EMACS_INT) to
LONG_WIDTH < FIXNUM_BITS. Do not bother computing the sign of
the value to tighten the bounds for whether to try the second
attempt, as it’s not worth the effort. Do not call mpz_size,
which is unnecessary since the number of bits is already known
and the loop can iterate over a shift count instead. Avoid
unnecessary casts. Use + instead of | where either will do,
as + is typically better for optimization.
Improve mpz_t to fixnum when --with-wide-int
* src/alloc.c (make_number): Avoid undefined behavior
when shifting an EMACS_UINT by more than EMACS_UINT_WIDTH bits.
Check for integer overflow when shifting.
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These operations incorrectly treated negative fixnums as
bignums greater than most-positive-fixnum.
* src/alloc.c (mpz_set_intmax_slow): Avoid undefined
behavior if signed unary negation overflows, while
we’re in the neighborhood.
(mpz_set_uintmax_slow): Remove. All uses removed.
* src/data.c (arith_driver): Treat fixnums as signed, not
unsigned, even for logical operations.
* src/lisp.h (mpz_set_uintmax): Remove. All uses removed.
* test/src/data-tests.el (data-tests-logand)
(data-tests-logior, data-tests-logxor): New tests.
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Remove misc-objects-consed and the misc component of
memory-use-count, since misc objects no longer exist.
* doc/lispref/internals.texi, etc/NEWS: Mention this,
and adjust better to recent removal of misc objects.
* src/alloc.c (MEM_TYPE_MISC): Remove; no longer used.
(Fmemory_use_counts): Omit misc count, since miscs
no longer exist.
(misc-objects-consed): Remove.
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614cc65 ; * lisp/simple.el (line-move-visual): Fix typo.
d2ad4ba Do not consider external packages to be removable (Bug#27822)
ec0995c * src/alloc.c: Remove obsolete comments.
ec6f588 Better support utf-8-with-signature and utf-8-hfs in HTML
eb026a8 Don't use -Wabi compiler option
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* test/src/data-tests.el (data-tests-kill-all-local-variables): New test.
* src/buffer.c (swap_out_buffer_local_variables): Remove.
Fuse the body of its loop into that of reset_buffer_local_variables.
(Fkill_buffer, Fkill_all_local_variables): Don't call it any more.
(reset_buffer_local_variables): Make sure the buffer's local binding
is swapped out before removing it from the alist (bug#30846).
Call watchers before actually killing the var.
* src/data.c (Fmake_local_variable): Simplify.
Use swap_in_global_binding to swap out any local binding, instead of
a mix of find_symbol_value followed by messing with where&found.
Don't call swap_in_symval_forwarding since the currently swapped
binding is never one we've modified.
(Fkill_local_variable): Use swap_in_global_binding rather than messing
with where&found to try and trick find_symbol_value into doing the same.
* src/alloc.c (mark_localized_symbol): 'where' can't be a frame any more.
(cherry picked from commit 3ddff080341580eb6fc18d907181e9cc2301f62d)
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* src/alloc.c (free_marker): Remove.
* src/editfns.c (save_restriction_restore):
* src/insdel.c (signal_before_change): Detach the markers from the
buffer when we're done with them instead of calling free_marker on
them.
* test/src/editfns-tests.el (delete-region-undo-markers-1)
(delete-region-undo-markers-2): New tests.
(cherry picked from commit 96b8747d5c5d747af13fd84d8fe0308ef2a0ea7a)
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Backport from master.
Problem reported by Ulrich Mueller; fix suggested by Eli Zaretskii
and Andreas Schwab (Bug#30855).
* src/alloc.c (mark_memory): Call mark_maybe_object only on
pointers that are properly aligned for Lisp_Object.
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Suggested by Pip Cet (Bug#32405#14).
* src/alloc.c (mark_object): Remove unnecessary special cases for
PVEC_MARKER, PVEC_BOOL_VECTOR, PVEC_MISC_PTR, PVEC_USER_PTR, and
PVEC_FINALIZER.
change is to free up an enum Lisp_Type tag value, a scarce
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Eliminate the category of miscellaneous objects, and turn all
such objects into pseudovectors. The immediate motivation
for this change is to free up an enum Lisp_Type tag value, a
scarce resource that can be better used elsewhere. However,
this change is worthwhile in its own right, as it improves
performance slightly on my platform, 0.3% faster for 'make
compile-always' on Fedora 28, and it simplifies the garbage
collector and interpreter (Bug#32405).
* doc/lispref/internals.texi (Garbage Collection):
* etc/NEWS:
Document change to garbage-collect return value.
* src/alloc.c (total_markers, total_free_markers):
(union aligned_Lisp_Misc, MARKER_BLOCK_SIZE)
(struct marker_block, marker_block, marker_block_index)
(misc_free_list, allocate_misc, live_misc_holding)
(live_misc_p, sweep_misc):
* src/lisp.h (lisp_h_MARKERP, lisp_h_MISCP, MARKERP, MISCP)
(Lisp_Misc, enum Lisp_Misc_Type, Lisp_Misc_Free)
(Lisp_Misc_Marker, Lisp_Misc_Overlay, Lisp_Misc_Finalizer)
(Lisp_Misc_Ptr, Lisp_Misc_User_Ptr, Lisp_Misc_Limit)
(Lisp_Misc_Bignum)
(XSETMISC, struct Lisp_Misc_Any, XMISCANY, XMISCTYPE)
(struct Lisp_Free, union Lisp_Misc, XMISC):
Remove. All uses removed.
(cleanup_vector): Clean up objects that were formerly misc
and are now pseudovectors.
(make_misc_ptr, build_overlay, Fmake_marker, build_marker)
(make_bignum_str, make_number, make_pure_bignum)
(make_user_ptr, Fmake_finalizer):
Build as pseudovectors, not as misc objects.
(mark_finalizer_list, queue_doomed_finalizers)
(compact_undo_list, mark_overlay, mark_object)
(unchain_dead_markers):
Mark as vector-like objects, not as misc objects.
(mark_maybe_object, mark_maybe_pointer, valid_lisp_object_p)
(total_bytes_of_live_objects, survives_gc_p):
* src/fns.c (sxhash):
No need to worry about misc objects.
(garbage_collect_1): Do not generate a 'misc' component.
(syms_of_alloc): No need for 'misc' symbol.
* src/buffer.c (overlays_at, overlays_in, overlay_touches_p)
(overlay_strings, recenter_overlay_lists)
(fix_start_end_in_overlays, fix_overlays_before)
(Foverlay_lists, report_overlay_modification)
(evaporate_overlays):
* src/editfns.c (overlays_around):
* src/data.c (Ftype_of):
* src/fns.c (internal_equal):
* src/lisp.h (mint_ptrp, xmint_pointer, FINALIZERP)
(XFINALIZER, MARKERP, XMARKER, OVERLAYP, XOVERLAY, USER_PTRP)
(XUSER_PTR, BIGNUMP, XBIGNUM):
* src/print.c (print_vectorlike, print_object):
* src/undo.c (record_marker_adjustments):
* src/xdisp.c (load_overlay_strings):
Formerly misc objects are now pseudovectors.
* src/lisp.h (PVEC_MARKER, PVEC_OVERLAY, PVEC_FINALIZER)
(PVEC_BIGNUM, PVEC_MISC_PTR, PVEC_USER_PTR):
New constants, replacing their misc versions. All uses changed.
(struct Lisp_Marker, struct Lisp_Overlay, struct Lisp_Misc_Ptr)
(struct Lisp_Bignum, struct Lisp_User_Ptr, struct Lisp_Finalizer):
Make usable as a pseudovector by using a pseudovector header,
replacing any DIY components, and putting Lisp_Object members
first. All uses changed.
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* src/alloc.c (VECTOR_BLOCK_SIZE, VECTOR_BLOCK_BYTES)
(VBLOCK_BYTES_MIN, VBLOCK_BYTES_MAX, VECTOR_MAX_FREE_LIST_INDEX):
Prefer enums to macros where either will do.
(allocate_vector_from_block): Arg is ptrdiff_t, not size_t.
Use eassume instead of eassert.
(PSEUDOVEC_STRUCT): New macro, which verifies the already-existing
assumption that the vector-like objects are small.
(cleanup_vector): Use it. Use if-then-else systematically;
this lets GCC do a bit better job.
2018-08-08 Paul Eggert <eggert@cs.ucla.edu>
* src/alloc.c (VBLOCK_BYTES_MAX): Use vroundup_ct, not
vroundup, so that can be used in static assertions.
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This simplifies the code a bit, and also simplifies some
potential future changes slightly (e.g., altering eq vs eql).
* src/alloc.c (mark_object):
* src/callint.c (fix_command):
* src/chartab.c (Fchar_table_range, Fset_char_table_range):
* src/dbusbind.c (XD_OBJECT_TO_DBUS_TYPE, xd_signature):
* src/dired.c (Fsystem_users):
* src/fileio.c (Fdo_auto_save):
* src/fns.c (concat):
* src/frame.c (get_frame_param, frame_inhibit_resize)
(store_in_alist, store_frame_param, x_set_autoraise)
(x_set_autolower, x_get_arg):
* src/image.c (Fclear_image_cache):
* src/intervals.c (intervals_equal):
* src/intervals.h (DEFAULT_INTERVAL_P):
* src/lread.c (substitute_object_recurse):
* src/menu.c (digest_single_submenu)
(find_and_call_menu_selection)
(find_and_return_menu_selection):
* src/nsfns.m (x_set_icon_name, Fx_create_frame):
* src/nsmenu.m (ns_menu_show):
* src/nsselect.m (ns_string_to_pasteboard_internal)
(Fns_selection_exists_p, Fns_selection_owner_p):
* src/process.c (Faccept_process_output)
(wait_reading_process_output):
* src/terminal.c (store_terminal_param):
* src/textprop.c (verify_interval_modification):
* src/xdisp.c (next_element_from_buffer):
* src/xfaces.c (Finternal_set_lisp_face_attribute):
* src/xfns.c (x_set_icon_type, Fx_synchronize):
* src/xmenu.c (x_menu_show):
* src/xselect.c (Fx_selection_owner_p)
(Fx_selection_exists_p):
* src/xwidget.c (xwidget_view_lookup):
Prefer NILP (x) to EQ (x, Qnil).
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* src/alloc.c (make_number): Use mp_bits_per_limb, not GMP_NUMB_BITS.
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* src/alloc.c (mpz_set_uintmax_slow): Use mpz_import.
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* src/alloc.c (make_pure_bignum): New function.
(purecopy): Use it.
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* src/alloc.c, src/bidi.c, src/buffer.c, src/buffer.h, src/bytecode.c,
src/callint.c, src/callproc.c, src/casefiddle.c, src/casetab.c,
src/category.c, src/ccl.c, src/character.c, src/character.h,
src/charset.c, src/charset.h, src/chartab.c, src/cmds.c, src/coding.c,
src/composite.c, src/composite.h, src/data.c, src/dbusbind.c,
src/decompress.c, src/dired.c, src/dispextern.h, src/dispnew.c,
src/disptab.h, src/doc.c, src/dosfns.c, src/editfns.c,
src/emacs-module.c, src/emacs.c, src/eval.c, src/fileio.c,
src/floatfns.c, src/fns.c, src/font.c, src/font.h, src/fontset.c,
src/frame.c, src/frame.h, src/fringe.c, src/ftcrfont.c, src/ftfont.c,
src/gfilenotify.c, src/gnutls.c, src/gtkutil.c, src/image.c,
src/indent.c, src/insdel.c, src/intervals.c, src/json.c,
src/keyboard.c, src/keymap.c, src/kqueue.c, src/lcms.c, src/lisp.h,
src/lread.c, src/macros.c, src/marker.c, src/menu.c, src/minibuf.c,
src/msdos.c, src/print.c, src/process.c, src/profiler.c, src/search.c,
src/sound.c, src/syntax.c, src/syntax.h, src/sysdep.c, src/term.c,
src/termhooks.h, src/textprop.c, src/undo.c, src/w32.c,
src/w32console.c, src/w32fns.c, src/w32font.c, src/w32inevt.c,
src/w32proc.c, src/w32select.c, src/w32term.c, src/w32term.h,
src/w32uniscribe.c, src/window.c, src/xdisp.c, src/xfaces.c,
src/xfns.c, src/xfont.c, src/xftfont.c, src/xmenu.c, src/xml.c,
src/xrdb.c, src/xselect.c, src/xsettings.c, src/xterm.c, src/xwidget.c
Rename XINT->XFIXNUM, XFASTINT->XFIXNAT, XUINT->XUFIXNUM.
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* lisp/international/ccl.el (ccl-fixnum): New function.
(ccl-embed-data, ccl-embed-current-address, ccl-dump): Use it.
* src/alloc.c (make_number): Handle case where EMACS_INT is
larger than long.
* src/data.c (bignumcompare): Handle case where EMACS_INT is
larger than long.
(arith_driver): Likewise. Coerce markers.
(float_arith_driver): Coerce markers.
(Flogcount): Use mpz_sgn.
(ash_lsh_impl): Fix bugs.
(Fsub1): Fix underflow check.
* src/lisp.h (NUMBERP): Don't check BIGNUMP.
(CHECK_FIXNUM_OR_FLOAT_COERCE_MARKER): Fix indentation.
* test/lisp/international/ccl-tests.el: New file.
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* src/alloc.c (mpz_set_intmax_slow, mpz_set_uintmax_slow): New
functions.
* src/data.c (arith_driver, Frem, Fmod, ash_lsh_impl, Fadd1)
(Fsub1): Use mpz_set_intmax, mpz_set_uintmax.
* src/emacs-module.c (module_make_integer): Use mpz_set_intmax.
* src/floatfns.c (Fabs): Use mpz_set_intmax.
* src/lisp.h (mpz_set_intmax, mpz_set_uintmax): New inline
functions.
(mpz_set_uintmax_slow, mpz_set_intmax_slow): Declare.
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* src/alloc.c (make_bignum_str, make_number): New functions.
* src/lisp.h (make_bignum_str, make_number): Declare.
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* src/alloc.c (mark_object): Handle Lisp_Misc_Bignum.
(sweep_misc): Call mpz_clear for Lisp_Misc_Bignum.
* src/data.c (Ftype_of): Handle Lisp_Misc_Bignum.
(Fintegerp, Finteger_or_marker_p, Fnatnump, Fnumberp)
(Fnumber_or_marker_p): Update for bignum.
(Ffixnump, Fbignump): New defuns.
(syms_of_data): Update.
* src/emacs.c (xrealloc_for_gmp, xfree_for_gmp): New functions.
(main): Call mp_set_memory_functions.
* src/lisp.h (enum Lisp_Misc_Type) <Lisp_Misc_Bignum>: New constant.
(struct Lisp_Bignum): New.
(union Lisp_Misc): Add u_bignum.
(BIGNUMP, XBIGNUM, INTEGERP, NATNUMP, NUMBERP, CHECK_NUMBER)
(CHECK_INTEGER, CHECK_NUMBER_COERCE_MARKER): New functions.
* src/print.c (print_object): Handle Lisp_Misc_Bignum.
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* src/json.c, src/keyboard.c, src/keyboard.h, src/keymap.c,
src/kqueue.c, src/lcms.c, src/lisp.h, src/lread.c, src/macros.c,
src/marker.c, src/menu.c, src/minibuf.c, src/msdos.c, src/print.c,
src/process.c, src/profiler.c, src/search.c, src/sound.c,
src/syntax.c, src/sysdep.c, src/term.c, src/terminal.c,
src/textprop.c, src/undo.c, src/w16select.c, src/w32.c,
src/w32console.c, src/w32cygwinx.c, src/w32fns.c, src/w32font.c,
src/w32inevt.c, src/w32proc.c, src/w32select.c, src/w32term.c,
src/w32uniscribe.c, src/widget.c, src/window.c, src/xdisp.c,
src/xfaces.c, src/xfns.c, src/xfont.c, src/xftfont.c, src/xmenu.c,
src/xrdb.c, src/xselect.c, src/xterm.c, src/xwidget.c: Rename
INTEGERP->FIXNUM, make_number->make_fixnum, CHECK_NUMBER->CHECK_FIXNUM,
make_natnum->make_fixed_natum, NUMBERP->FIXED_OR_FLOATP,
NATNUMP->FIXNATP, CHECK_NATNUM->CHECK_FIXNAT.
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* src/alloc.c (which_symbols):
* src/dispnew.c (Fredisplay):
* src/editfns.c (Fsubst_char_in_region):
* src/fileio.c (Fdo_auto_save):
* src/indent.c (Fvertical_motion):
* src/keymap.c (Fcurrent_active_maps):
* src/lread.c (Feval_buffer):
* src/minibuf.c (get_minibuffer):
* src/sysdep.c (system_process_attributes):
* src/textprop.c (Fnext_single_char_property_change)
(Fprevious_single_char_property_change):
* src/window.c (Fscroll_other_window, Fscroll_other_window_down):
* src/xdisp.c (Fformat_mode_line):
Help the compiler eliminate tail recursion in call to unbind_to.
* src/coding.c (decode_coding_gap):
Omit unnecessary unbind_to, as we’re about to call unbind_to anyway.
* src/coding.c (Fread_coding_system):
* src/eval.c (eval_sub):
* src/xdisp.c (handle_single_display_spec, decode_mode_spec):
* src/xselect.c (x_get_local_selection):
Avoid need to save a machine register when calling unbind_to.
* src/minibuf.c (Ftry_completion, Fall_completions):
Omit unnecessary assignment.
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Have it return Emacs virtual memory size, not the sbrk value
which is often useless newadays.
* doc/lispref/internals.texi (Garbage Collection):
* etc/NEWS: Document this.
* lisp/subr.el (memory-limit): New implementation in Lisp,
written in terms of process-attributes, and which returns
virtual memory size.
* src/alloc.c (Fmemory_limit): Remove C implementation.
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