Check Lisp_Compiled objects better as they’re created,
so that the byte-code interpreter needn’t do the checks
each time it executes them. This improved performance
of ‘make compile-always’ by 1.5% on my platform. Also,
improve the quality of the (still-incomplete) checks, as
this is more practical now that they’re done less often.
* src/alloc.c (make_byte_code): Remove. All uses removed.
(Fmake_byte_code): Put a better (though still incomplete)
check here instead. Simplify by using Fvector instead
of make_uninit_vector followed by memcpy, and by using
XSETPVECTYPE instead of make_byte_code followed by XSETCOMPILED.
* src/bytecode.c (Fbyte_code): Do sanity check and conditional
translation to unibyte here instead of each time the function is
executed.
(exec_byte_code): Omit no-longer-necessary sanity and
unibyte checking. Use SCHARS instead of SBYTES where
either will do, as SCHARS is faster.
* src/eval.c (fetch_and_exec_byte_code): New function.
(funcall_lambda): Use it.
(funcall_lambda, lambda_arity, Ffetch_bytecode):
Omit no-longer-necessary sanity checks.
(Ffetch_bytecode): Add sanity check if actually fetching.
* src/lisp.h (XSETCOMPILED): Remove. All uses removed.
* src/lread.c (read1): Check byte-code objects more thoroughly,
albeit still incompletely, and do translation to unibyte here
instead of each time the function is executed.
(read1): Use XSETPVECYPE instead of make_byte_code.
(read_vector): Omit no-longer-necessary sanity check.
backtrace_eval_unrewind is used to temporarily reverse
let-bindings (it's called with a positive argument to reverse
bindings, and then a negative argument to re-apply them) by
backtrace--locals and backtrace-eval. For the SPECPDL_LET_DEFAULT and
SPECPDL_LET_LOCAL cases (which occur for let-bindings on buffer-local
variables), the code calls Fdefault_value and Fbuffer_local_value on
the symbol.
For symbols which are unbound at top-level, the first (with positive
argument) call to backtrace_eval_unrewind will set the symbol's value
to unbound (putting the current value in the specpdl's "old value"
slot). On the second (with negative argument) call,
backtrace_eval_unrewind attempts to retrieve the symbol's value with
Fdefault_value or Fbuffer_local_value, but that raises a void-variable
signal. This interrupts the restoration of the let-bindings, so any
other variables more recent on the stack will now have the wrong
value.
* src/data.c (default_value): Make non-static.
* src/lisp.h: Declare it.
* src/eval.c (backtrace_eval_unrewind): Replace the calls to
Fdefault_value and Fbuffer_local_value with default_value and
buffer_local_value, respectively. The latter do exactly the same as
the former, except if the symbol's value is Qunbound they just return
it instead of signaling void-variable.
Occasionally, loading cl-generic.el from source requires
max_specpdl_size > 1600 when bootstrapping, and thus fails.
In any case we are very close to the limit.
* src/eval.c (init_eval_once): Raise max_specpdl_size to 1800.
* doc/lispref/variables.texi (Local Variables): Update docs.
Problem reported by Pip Cet in:
https://lists.gnu.org/r/emacs-devel/2019-07/msg00520.html
* src/alloc.c (inhibit_garbage_collection): Use new function.
(allow_garbage_collection): Accept intmax_t, not pointer.
* src/eval.c (default_toplevel_binding, do_one_unbind)
(backtrace_eval_unrewind, Fbacktrace__locals, mark_specpdl):
Support SPECPDL_UNWIND_INTMAX.
(record_unwind_protect_excursion): New function.
* src/lisp.h (enum specbind_tag): New constant SPECPDL_UNWIND_INTMAX.
(union specbinding): New member unwind_intmax.
Without this patch, (capitalize "x") can alter the match data,
which is not what users expect. Problem found by running
morse-tests-unnato-region in a stripped-down Emacs.
Perhaps ‘load’ should also save and restore the match data?
That would be a simpler fix, though arguably incompatible.
* src/lread.c (save_match_data_load): New function.
* src/chartab.c (uniprop_table):
* src/doc.c (reread_doc_file):
* src/eval.c (Fautoload_do_load):
* src/fns.c (Frequire): Use it.
Point out that 'function' quoting is beneficial also for symbols.
* src/eval.c (function): Enhance docstring.
* doc/lispref/functions.texi (Anonymous Functions): Improve
documentation.
Avoid the abuse of (eval `(defvar ...)) which tends to end up
adding redundant entries in `load-history`, as discussed in
https://lists.gnu.org/r/help-gnu-emacs/2019-03/msg00237.html
(custom-initialize-default): Don't add to load-history.
(custom-declare-variable): Use internal--define-uninitialized-variable
and only add the var to load-history once. Do it before calling
`initialize` so the special-variable-p flag is set.
* src/eval.c (Finternal__define_uninitialized_variable): New function.
(Fdefvar, Fdefconst): Use it.
(syms_of_eval): Defsubr' it.
Stefan Monnier pointed out examples like (funcall `(closure
,(let ((cycle (list nil))) (setcdr cycle cycle)) () a)),
where the user can set Vinternal_interpreter_environment
indirectly.
* src/eval.c (Fsetq): Revert recent change, going back to Fassq.
* src/eval.c (eval_sub): Check whether Fassq returns Qnil,
not whether it returns a cons, as NILP is faster than CONSP
nowadays. Remove incorrect comment “only original_fun and
original_args have values that will be used below”; instead,
move declarations around so that the set of variables with
useful values is obvious.
In some cases, we never specbind internal objects, so they don't have
to be symbols. Rather than using DEFSYM/DEFVAR and then uninterning
the symbols, use plain static variables. Call staticpro for all of
them, to protect them from the garbage collector.
* src/eval.c (syms_of_eval): Use a static variable for
Qcatch_all_memory_full.
* src/emacs-module.c (syms_of_module): Use static variables for
Vmodule_refs_hash, Vmodule_runtimes, and Vmodule_environments.
In all cases where we use a CATCHER_ALL handler we also want to catch
signals. Therefore have 'signal' respect CATCHER_ALL. Adapt internal
interfaces so that handlers can distinguish among the two types of
nonlocal exits in CATCHER_ALL handlers.
* src/lisp.h (enum nonlocal_exit): New enum.
(struct handler): Add member 'nonlocal_exit' to hold the type of
nonlocal exit during stack unwinding.
* src/eval.c (signal_or_quit): Also respect CATCHER_ALL handlers.
(unwind_to_catch): Store nonlocal exit type in catch structure.
(Fthrow, signal_or_quit): Adapt callers.
(internal_catch_all): Install only one handler. Give handler a
nonlocal exit type argument.
(internal_catch_all_1): Remove, no longer needed.
* src/emacs-module.c (MODULE_SETJMP): Install only one handler.
(module_handle_nonlocal_exit): New function to handle all nonlocal
exits.
(MODULE_SETJMP_1): Pass nonlocal exit type to handler function.
(module_handle_signal, module_handle_throw): Remove, no longer needed.
* src/json.c (json_handle_nonlocal_exit): New helper function.
(json_insert_callback): Adapt to change in 'internal_catch_all'.
Since child_setup() is called between block_input()...unblock_input(),
when an error is signaled the Lisp debugger is prevented from
starting. Therefore, let the callers signal the error instead (which
they already do for non-w32 platforms, just the error message needs an
update).
* src/callproc.c (child_setup) [WINDOWSNT]: Don't call
report_file_error here.
(call_process) [WINDOWNT]:
* src/process.c (create_process) [WINDOWSNT]: Call report_file_errno
here instead, after the unblock_input() call, same as for !WINDOWSNT.
* src/lisp.h (CHILD_SETUP_ERROR_DESC): New preprocessor define. Flip
the containing ifndef DOS_NT branches so that it's ifdef DOS_NT.
* src/eval.c (when_entered_debugger): Remove.
(syms_of_eval) <internal-when-entered-debugger>: Define it as a Lisp
integer variable instead.
(maybe_call_debugger): Update comment.
* test/src/process-tests.el (make-process-w32-debug-spawn-error):
* test/src/callproc-tests.el (call-process-w32-debug-spawn-error): New
tests.
Also, remove some duplicate comments related to thread.h.
* src/regex-emacs.h (struct re_registers):
* src/regex-emacs.c (SIGN_EXTEND_CHAR): Remove.
(TALLOC, RETALLOC): Remove. All uses replaced by usual
allocators, which check for integer overflow.
(extract_number): Redo without using ‘unsigned’.
(CHARSET_RANGE_TABLE_EXISTS_P): Clearly return a boolean.
(print_fastmap, print_partial_compiled_pattern, CHECK_INFINITE_LOOP)
(regex_compile, analyze_first, bcmp_translate, mutually_exclusive_p)
(re_match_2_internal):
Use bool for booleans.
(print_fastmap, regex_compile, execute_charset):
Prefer int to unsigned where either will do.
(print_double_string): Prefer ptrdiff_t to ssize_t, since the
latter can in theory be narrower than the former. Use fwrite
instead of repeated putchar.
(emacs_re_max_failures, fail_stack_type, compile_stack_type)
(re_wctype_parse, regex_compile, re_search, re_search_2)
(re_match_2, re_match_2_internal, re_compile_pattern):
Prefer ptrdiff_t to size_t where either will do.
(union fail_stack_elt, PUSH_FAILURE_REG, POP_FAILURE_REG_OR_COUNT):
Make the integer an intptr_t, not long.
(GET_BUFFER_SPACE, EXTEND_BUFFER, regex_compile):
Use xpalloc to simplify allocation.
(regex_compile): Check for integer overflow when calculating
register numbers.
* src/regex-emacs.c (re_set_registers, re_match_2_internal):
* src/regex-emacs.h (struct re_registers, struct re_pattern_buffer):
* src/search.c (Freplace_match):
Prefer ptrdiff_t to unsigned where either will do.
* src/regex-emacs.h (struct re_pattern_buffer):
Prefer bool_bf to unsigned where either will do.
The main new thing here is that C code can now say
‘list (a, b, c, d, e, f)’ instead of
‘listn (CONSTYPE_HEAP, 6, a, b, c, d, e, f)’,
thus relieving callers of the responsibility of counting
arguments (plus, the code feels more like Lisp). The old
list1 ... list5 functions remain, as they’re probably a bit
faster for small lists.
* src/alloc.c (cons_listn, pure_listn): New functions.
(listn): Omit enum argument.
All callers changed to use either new ‘list’ or ‘pure_list’ macros.
* src/charset.c (Fdefine_charset_internal):
* src/coding.c (detect_coding_system)
(Fset_terminal_coding_system_internal):
* src/frame.c (frame_size_history_add, adjust_frame_size):
* src/gtkutil.c (xg_frame_set_char_size):
* src/keyboard.c (command_loop_1):
* src/nsfns.m (frame_geometry):
* src/widget.c (set_frame_size):
* src/xfaces.c (Fcolor_distance):
* src/xfns.c (frame_geometry):
* src/xterm.c (x_set_window_size_1):
* src/xwidget.c (Fxwidget_size_request):
Prefer list1i, list2i, etc. to open-coding them.
* src/charset.c (Fset_charset_priority):
* src/nsterm.m (append2):
* src/window.c (window_list):
* src/xfaces.c (Fx_list_fonts):
Use nconc2 instead of open-coding it.
* src/eval.c (eval_sub, backtrace_frame_apply):
* src/kqueue.c (kqueue_generate_event):
* src/nsterm.m (performDragOperation:):
* src/pdumper.c (Fpdumper_stats):
* src/w32.c (init_environment):
Prefer list1, list2, etc. to open-coding them.
* src/font.c (font_list_entities):
Parenthesize to avoid expanding new ‘list’ macro.
* src/gtkutil.c (GETSETUP): Rename from MAKE_FLOAT_PAGE_SETUP
to get lines to fit. Move outside the ‘list’ call, since it’s
now a macro.
* src/keymap.c (Fmake_keymap): Simplify.
* src/lisp.h (list, pure_list): New macros.
(list1i): New function.
* src/eval.c (backtrace_thread_p, backtrace_top): Don't
segfault in "xbacktrace" if called before the specpdl
machinery is initialized in pdumped Emacs.
Formerly they were fixnums, which led to problems when dealing
with values that might not fit on 32-bit platforms, such as
string-chars-consed or floats_consed. 64-bit counters should
be good enough for these (for a while, anyway...).
While we’re at it, fix some unlikely integer overflow bugs
that have been in the code for a while.
* lib-src/make-docfile.c (write_globals):
* src/data.c (do_symval_forwarding, store_symval_forwarding):
* src/eval.c (restore_stack_limits, call_debugger):
* src/frame.h (struct frame.cost_calculation_baud_rate):
* src/keyboard.c (last_auto_save, bind_polling_period, read_char):
* src/lisp.h (struct Lisp_Intfwd.intvar):
* src/lread.c (defvar_int):
* src/pdumper.c (dump_fwd_int):
* src/thread.h (struct thread_state.m_lisp_eval_depth):
* src/undo.c (truncate_undo_list):
* src/xselect.c (wait_for_property_change)
(x_get_foreign_selection):
* src/xterm.c (x_emacs_to_x_modifiers):
DEFVAR_INT variables now have the C type intmax_t, not EMACS_INT.
* src/data.c (store_symval_forwarding):
* src/gnutls.c (Fgnutls_boot):
* src/keyboard.c (bind_polling_period):
* src/macros.c (pop_kbd_macro, Fexecute_kbd_macro):
* src/undo.c (truncate_undo_list):
Allow any integer that fits into intmax_t, instead of
requiring it to be a Lisp fixnum.
* src/dispnew.c (update_window):
* src/frame.c (x_figure_window_size):
* src/gnutls.c (init_gnutls_functions)
(emacs_gnutls_handle_error):
* src/keyboard.c (make_lisp_event):
* src/nsterm.m (ns_dumpglyphs_image):
* src/profiler.c (make_log):
* src/scroll.c (calculate_scrolling)
(calculate_direct_scrolling):
* src/termcap.c (tputs):
* src/xterm.c (x_draw_image_relief):
Avoid implementation-defined behavior on conversion of
out-of-range integers.
* src/eval.c (when_entered_debugger): Now intmax_t.
(max_ensure_room): New function, that avoids signed integer overflow.
(call_debugger, signal_or_quit): Use it.
* src/fileio.c (Fdo_auto_save):
* src/keyboard.c (make_lisp_event):
* src/term.c (calculate_costs):
* src/xdisp.c (build_desired_tool_bar_string)
(hscroll_window_tree, try_scrolling, decode_mode_spec)
(x_produce_glyphs):
Avoid signed integer overflow.
* src/lisp.h (clip_to_bounds): Generalize to intmax_t.
* src/pdumper.c (dump_emacs_reloc_immediate_emacs_int): Remove, ...
(dump_emacs_reloc_immediate_intmax_t): ... replacing with this
function. All uses changed.
* src/profiler.c (make_log): Omit args. All callers changed.
* src/termcap.c: Include stdlib.h, for atoi.
Include intprops.h.
* src/window.c (sanitize_next_screen_context_lines): New function.
(window_scroll_pixel_based, window_scroll_line_based):
Use it to avoid signed integer overflow.
pending_signals is often set if no quit is pending. This results in
bugs in module code if the module returns but no quit is actually
pending.
As a better alternative, add a new process_input environment function
for Emacs 27. That function processes signals (like maybe_quit).
* configure.ac: Add module snippet for Emacs 27.
* src/module-env-27.h: New file.
* src/emacs-module.h.in: Add process_input function to environment
interface.
* src/emacs-module.c (module_should_quit): Use QUITP macro to check
whether the caller should quit.
(module_process_input): New function.
(initialize_environment): Use it.
* src/eval.c: Remove obsolete comment.
* test/data/emacs-module/mod-test.c (signal_wrong_type_argument)
(signal_errno): New helper functions.
(Fmod_test_sleep_until): New test module function.
* test/src/emacs-module-tests.el (mod-test-sleep-until): New unit
test.
* doc/lispref/internals.texi (Module Misc): Document process_input.
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.
When calculating the length of a Lisp object whose type is
known, use a specialized length operation on it to save a bit
of runtime overhead.
* src/callint.c (Fcall_interactively):
* src/minibuf.c (read_minibuf_unwind):
Use ASIZE rather than Flength on values that must be vectors.
* src/charset.c (Fsort_charsets):
* src/coding.c (detect_coding_sjis):
(Fdefine_coding_system_internal):
* src/data.c (wrong_choice):
* src/eval.c (Flet, eval_sub, Fapply, apply_lambda):
* src/fns.c (sort_list):
* src/font.c (font_vconcat_entity_vectors)
(font_find_for_lface):
* src/frame.c (Fmodify_frame_parameters):
* src/fringe.c (get_logical_fringe_bitmap):
* src/ftfont.c (ftfont_get_open_type_spec):
* src/gtkutil.c (xg_print_frames_dialog):
* src/lread.c (read1, read_vector):
* src/keymap.c (Fkey_description):
* src/kqueue.c (Fkqueue_add_watch):
* src/macfont.m (macfont_get_open_type_spec):
* src/menu.c (parse_single_submenu, x_popup_menu_1):
* src/minibuf.c (Finternal_complete_buffer):
* src/nsfont.m (ns_findfonts, nsfont_list_family):
* src/process.c (Fmake_process):
* src/search.c (Fset_match_data):
* src/xfaces.c (Fx_family_fonts):
Use list_length rather than Flength on values that must be lists.
* src/fns.c (list_length): New function.
(Flength): Use it.
* src/nsfont.m (ns_findfonts):
Use !NILP (x) rather than XFIXNUM (Flength (x)) != 0.
* src/xdisp.c (store_mode_line_string):
Use SCHARS rather than Flength on values that must be strings.
Although the previously-applied fix worked for its platform,
it doesn’t suffice in general.
* src/bytecode.c (exec_byte_code): Save VECTOR into stack slot
so that it survives GC. The stack slot was otherwise unused,
so this doesn’t cost us memory, only a store insn.
* src/eval.c (Ffuncall): Do not make FUN volatile, reverting
2018-10-14T19:12:04Z!gazally@runbox.com. Adding ‘volatile’
does not suffice, since storage for a volatile local can be
reclaimed after its last access (e.g., by tail recursion
elimination), which would make VECTOR invisible to GC.
* src/eval.c (Ffuncall): Make local variable 'fun' volatile.
* test/src/eval-tests.el
(eval-tests-byte-code-being-evaluated-is-protected-from-gc):
Add regression test for Bug#33014.
(eval-tests-33014-var): New variable.
(eval-tests-33014-func, eval-tests-33014-redefine): New functions.
Problem reported by Paul Pogonyshev (Bug#33034).
* src/lisp.h (union specbinding): New member unwind.eval_depth.
* src/eval.c (record_unwind_protect, set_unwind_protect): Set it.
(do_one_unbind): Use it.
14c032d Avoid assertion violations in nonsensical calls to 'signal'
b99192f * lisp/simple.el (transient-mark-mode): Correct documentation...
7e42294 Update the locale and language database
8c53d9f Fix a typo in a doc string.
79bda3b Make nneething allow CRLF-encoded files (bug#32940)
* src/eval.c (Fsignal): If both arguments are nil, replace the
first one with 'error', to avoid assertion violations further
down the line. (Bug#32961)
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.
* src/eval.c (backtrace_thread_p, backtrace_thread_top)
(backtrace_thread_next, Fbacktrace_frames_from_thread): New functions.
* lisp/thread.el (thread-list-mode-map): Add keybinding and
menu item for 'thread-list-pop-to-backtrace'.
(thread-list-mode): Make "Thread Name" column wide enough
for the result of printing a thread with no name with 'prin1'.
(thread-list--get-entries): Use 'thread-list--name'.
(thread-list--send-signal): Remove unnecessary calls to 'threadp'.
(thread-list-backtrace--thread): New variable.
(thread-list-pop-to-backtrace): New command.
(thread-list-backtrace--revert-hook-function)
(thread-list--make-backtrace-frame)
(thread-list-backtrace--insert-header, thread-list--name): New
functions.
