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* | Remove INT_ADD_WRAPV bug workaroundsPaul Eggert2019-08-141-4/+1
| | | | | | | | | | | | | | | | | | * src/alloc.c (free_cons): * src/casefiddle.c (do_casify_multibyte_string): * src/editfns.c (styled_format): * src/image.c (png_load_body): Remove recent workarounds for INT_ADD_WRAPV bugs since the bugs have been fixed (Bug#37006).
* | Don’t increase consing_until_gc when out of memoryPaul Eggert2019-08-131-1/+1
| | | | | | | | | | * src/alloc.c (memory_full): Don’t increase consing_until_gc. Suggested by Eli Zaretskii (Bug#37006#46).
* | Let consing_until_gc exceed EMACS_INT_MAXPaul Eggert2019-08-131-8/+8
| | | | | | | | | | | | | | This builds on the previous patch. * src/alloc.c (consing_until_gc): Now of type intmax_t, since gc-cons-threshold can be up to INTMAX_MAX. All uses changed. * src/lisp.h (CONSING_CT_MAX, consing_ct): Remove.
* | Let consing_until_gc exceed INTPTR_MAXPaul Eggert2019-08-131-11/+10
| | | | | | | | | | | | | | | | | | | | Suggested by Eli Zaretskii (Bug#37006#46). * src/alloc.c (consing_until_gc): Now of type consing_ct. All uses changed, so gc-cons-threshold no longer saturates against OBJECT_CT_MAX. (object_ct): Move typedef here from lisp.h. * src/lisp.h (consing_ct, CONSING_CT_MAX): New type and macro. (OBJECT_CT_MAX): Remove. Replace all uses with CONSING_CT_MAX.
* | Fix GC threshold typoPaul Eggert2019-08-131-2/+2
| | | | | | | | | | | | | | Problem reported by Eli Zaretskii (Bug#37006#25). * src/alloc.c (garbage_collect_1): Fix typo in threshold calc. Go back to dividing by 10 since the numerator’s a constant now. Problem introduced in 2019-07-21T02:40:03Z!eggert@cs.ucla.edu.
* | ; Add commentary to recent changesEli Zaretskii2019-08-121-0/+2
| | | | | | | | | | | | | | | | * src/image.c (png_load_body): * src/editfns.c (styled_format): * src/casefiddle.c (do_casify_multibyte_string): * src/alloc.c (free_cons): Comment why we use a signed temporary integer variable. (Bug#37006)
* | Prefer signed when testing for signed overflowPaul Eggert2019-08-111-3/+2
| | | | | | | | | | | | | | | | | | | | * src/alloc.c (free_cons): * src/casefiddle.c (do_casify_multibyte_string): * src/editfns.c (styled_format): * src/image.c (png_load_body): Use signed arguments to INT_MULTIPLY_WRAPV etc. This doesn’t fix any bugs, but GCC emits better code when all args are signed. Also, this removes the need for an if in free_cons (Bug#37006).
* | Fix garbage collectionEli Zaretskii2019-08-111-1/+3
| | | | | | | | | | * src/alloc.c (free_cons): Avoid false positives in INT_ADD_WRAPV. (Bug#37006)
* | Fix arithmetic overflow in GC consing countPaul Eggert2019-07-271-1/+1
| | | | | | | | | | | | * src/alloc.c (allow_garbage_collection): Redo expression to avoid signed arithmetic overflow in an intermediate expression when CONSING is negative.
* | Merge pdumper.c and alloc.c builtin symbol testsPaul Eggert2019-07-231-9/+0
| | | | | | | | | | | | | | * src/alloc.c (c_symbol_p): Move from here ... * src/lisp.h (c_symbol_p): ... to here, and make it more portable to hypothetical platforms where pointers are wider than ptrdiff_t. * src/pdumper.c (dump_builtin_symbol_p): Use c_symbol_p.
* | Improve pdumper doc; say unexec is deprecatedPaul Eggert2019-07-231-2/+2
| | | | | | | | | | | | | | | | | | | | | | Say that pdumping cannot redump unless -batch is used. Say that the traditional unexec dumping method is by default not available, and is deprecated. Don't call dump files "portable", as dump files are not any more portable than the Emacs executables themselves. Just call them "dump files". Similar, prefer "portable dumper" (since the dumper code is portable) to "portable dumping" (since the dump file is not). Be more systematic about calling them "dump files" instead of "dumped images" or whatnot.
* | Keep track of consing while GC’s inhibitedPaul Eggert2019-07-221-1/+1
| | | | | | | | | | | | | | * src/alloc.c (allow_garbage_collection): Do not discard the count of consing that occurred while GC was inhibited. Problem and initial fix reported by Pip Cet in: https://lists.gnu.org/r/emacs-devel/2019-07/msg00523.html
* | Fix lifetime error in previous patchPaul Eggert2019-07-211-5/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* | Speed up maybe_gc when GC is inhibitedPaul Eggert2019-07-211-4/+8
| | | | | | | | | | | | | | | | * src/alloc.c (allow_garbage_collection) (inhibit_garbage_collection): Temporarily bump consing_until_gc, to improve performance of maybe_gc while garbage collection is inhibited. Suggested by Stefan Monnier in: https://lists.gnu.org/r/emacs-devel/2019-07/msg00511.html
* | pure_alloc returns cleared memoryPaul Eggert2019-07-211-3/+11
| | | | | | | | | | | | | | | | | | * src/alloc.c (pure_alloc): Clear any heap-allocated storage. This is simpler than auditing all the callers to make sure they don’t assume pure memory is cleared memory, and the performance implication is nonexistent except when Emacs is misconfigured. Also, add an assertion to catch caller misuse when pure space is exhausted.
* | Fix crash if user test munges hash tablePaul Eggert2019-07-201-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * src/fns.c (restore_mutability) (hash_table_user_defined_call): New functions. (cmpfn_user_defined, hashfn_user_defined): Use them. (make_hash_table, copy_hash_table): Mark new hash table as mutable. (check_mutable_hash_table): New function. (Fclrhash, Fputhash, Fremhash): Use it instead of CHECK_IMPURE. * src/lisp.h (struct hash_table_test): User-defined functions now take pointers to struct Lisp_Hash_Table, not to struct hash_table_test. All uses changed. (struct Lisp_Hash_Table): New member ‘mutable’. * src/pdumper.c (dump_hash_table): Copy it. * test/src/fns-tests.el (test-hash-function-that-mutates-hash-table): New test, which tests for the bug.
* | Inhibit GC after inhibit_garbage_collectionPaul Eggert2019-07-201-4/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Without this patch, there are unlikely ways that garbage collection could occur (sometimes causing undefined behavior) even when inhibit_garbage_collection is in effect. * src/alloc.c (garbage_collection_inhibited): New var. (pure_alloc): Increment it if pure space is exhausted, so that garbage_collect_1 no longer needs to inspect pure_bytes_used_before_overflow. (allow_garbage_collection): New function. (inhibit_garbage_collection): Increment the new variable rather than specbinding a user variable. (garbage_collect_1): Do not garbage collect if the new variable is set, rather than if pure_bytes_used_before_overflow is set.
* | Simplify maybe_gc implementationPaul Eggert2019-07-201-34/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | * src/alloc.c (consing_until_gc): New variable, replacing the combination of consing_since_gc and gc_relative_threshold. All uses changed. (byte_ct): Move decl here from lisp.h. (memory_full_cons_threshold): New an enum constant. (free_cons): Check for integer overflow in statistics calculation. * src/lisp.h (object_ct): Move decl here from alloc.c. (OBJECT_CT_MAX): New macro. (maybe_gc): Simplify accordingly.
* | Rename ‘pure’ to ‘purecopy’Paul Eggert2019-07-201-3/+3
| | | | | | | | | | | | * src/lisp.h (struct Lisp_Hash_Table): Rename ‘pure’ member to ‘purecopy’, as the old name was quite confusing (it did not mean the hash table was pure). All uses changed.
* | Replace Vdead with tagged pointerPaul Eggert2019-07-121-19/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This speeds up ‘make compile-always’ by 0.1% on my platform. Suggested by Pip Cet in: https://lists.gnu.org/r/emacs-devel/2019-07/msg00257.html * src/.gdbinit (pwinx, pgx, xbuffer, xprintstr): Output dead_object () as "DEAD". * src/alloc.c (Vdead, DEADP): Remove. All uses replaced by dead_object () / deadp. (deadp): New function. (init_alloc_once_for_pdumper): Remove no-longer-needed initialization. * src/lisp.h (dead_object): New function.
* | Rename font_driver member close -> close_fontMattias Engdegård2019-07-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * src/alloc.c (cleanup_vector): * src/xftfont.c (xftfont_driver): * src/xfont.c (xfont_driver): * src/nsfont.m (nsfont_driver): * src/macfont.m (macfont_driver): * src/ftxfont.c (ftxfont_driver): * src/ftfont.c (ftfont_driver): * src/ftcrfont.c (ftcrfont_driver): * src/font.h (struct font_driver): * src/font.c (font_clear_cache, font_close_object): Rename `close' member to `close_font', to avoid clash with preprocessor define of `close' in nt/inc/ms-w32.h and for consistency with `open_font'.
* | Use fewer locks when accessing stdioPaul Eggert2019-07-081-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * src/alloc.c, src/bidi.c, src/emacs-module.c, src/pdumper.c: * src/regex-emacs.c, src/unexhp9k800.c, src/unexmacosx.c: * src/widget.c, src/xdisp.c, src/xselect.c, src/xterm.c: Include sysstdio.h instead of stdio.h, to avoid locking stdio streams in many cases. * src/alloc.c (test_setjmp): * src/bidi.c (bidi_dump_cached_states): * src/cm.c (calccost): * src/dispnew.c (init_display_interactive): * src/emacs.c (main): * src/image.c (convert_mono_to_color_image): * src/minibuf.c (read_minibuf_noninteractive): * src/nsfont.m (ns_descriptor_to_entity) (ns_dump_glyphstring): * src/nsterm.h (NSTRACE_MSG_NO_DASHES): * src/nsterm.m (ns_mouse_position) (sendEvent:, keyDown:, performDragOperation:): * src/pdumper.c (dump_fingerprint, print_paths_to_root_1): * src/print.c (debug_print): * src/regex-emacs.c (debug_putchar, print_fastmap) (print_partial_compiled_pattern, print_compiled_pattern) (print_double_string, regex_compile): * src/term.c (vfatal): * src/unexhp9k800.c (read_header): * src/unexmacosx.c (unexec_error): * src/widget.c (EmacsFrameInitialize): * src/xdisp.c (message_to_stderr, vmessage, dump_glyph_row) (Fdump_glyph_matrix, Fdump_frame_glyph_matrix, dump_glyph_string): * src/xfaces.c (Fdump_colors, Fdump_face): * src/xselect.c (x_clipboard_manager_error_2): * src/xterm.c (x_initialize): * src/xwidget.c (WEBKIT_FN_INIT): Prefer unlocked calls like fputs to locked calls like fprintf. * src/charset.c (read_hex): * src/cm.c (cmputc, cmcheckmagic): * src/dispnew.c (update_frame, update_frame_with_menu) (update_frame_1, Fsend_string_to_terminal, Fding) (bitch_at_user): * src/emacs.c (main, Fdump_emacs): * src/emacs-module.c (module_abort): * src/fileio.c (Fdo_auto_save): * src/image.c (slurp_file) (png_read_from_file, png_load_body, our_stdio_fill_input_buffer): * src/keyboard.c (record_char, kbd_buffer_get_event) (handle_interrupt): * src/lread.c (readbyte_from_stdio, read1): * src/minibuf.c (read_minibuf_noninteractive): * src/print.c (printchar_to_stream, strout) (Fredirect_debugging_output): * src/sysdep.c (reset_sys_modes, close_output_streams) (procfs_ttyname, procfs_get_total_memory): * src/term.c (tty_ring_bell, tty_send_additional_strings) (tty_set_terminal_modes, tty_reset_terminal_modes) (tty_update_end, tty_clear_end_of_line, tty_write_glyphs) (tty_write_glyphs_with_face, tty_insert_glyphs) (tty_menu_activate): * src/xfaces.c (Fx_load_color_file): Simplify by using ordinary calls like putc to explicitly-unlocked calls like putc_unlocked, since the ordinary calls are now unlocked anyway. * src/emacs.c (main, Fdump_emacs): * src/pdumper.c (Fdump_emacs_portable): Coalesce adjacent printfs. * src/nsterm.h: Include sysstdio.h as this file’s macros rely on it. * src/regex-emacs.c (print_compiled_pattern): Omit redundant fflush. * src/sysstdio.h: Include unlocked-io.h. (clearerr_unlocked, feof_unlocked, ferror_unlocked) (fflush_unlocked, fgets_unlocked, fputc_unlocked) (fputs_unlocked, fread_unlocked, fwrite_unlocked) (getc_unlocked, getchar_unlocked, putc_unlocked) (putchar_unlocked): Remove these macros; now done by unlocked-io.h. * src/xwidget.c: Include sysstdio.h.
* | Revert "* lisp/calc/calc-ext.el (math-scalarp): Fix typo"Stefan Monnier2019-06-261-23/+0
| | | | | | | | This reverts commit 698ff554ac2699ec48fefc85a1307cbc4a183b0d.
* | * lisp/calc/calc-ext.el (math-scalarp): Fix typoStefan Monnier2019-06-261-0/+23
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* | Always allow at least double-precision bignumsPaul Eggert2019-06-041-3/+3
| | | | | | | | | | | | | | | | | | Without this fix, Emacs can get into a tight loop reporting a range error when calculating timestamps. * doc/lispref/numbers.texi (Integer Basics): * src/alloc.c (syms_of_alloc): Document this. * src/bignum.c (make_bignum_bits): Always allow bignums of at least twice the width of (u)intmax_t.
* | Avoid backslash-newline-newline in source codePaul Eggert2019-05-221-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * etc/refcards/Makefile (PDF_FRENCH): * lib-src/etags.c (LOOP_ON_INPUT_LINES): * lisp/dabbrev.el (dabbrev-check-other-buffers): * lisp/org/org-id.el (org-id-link-to-org-use-id): * lisp/org/org.el (org-support-shift-select, org-file-apps): * src/alloc.c (CHECK_ALLOCATED_AND_LIVE) (CHECK_ALLOCATED_AND_LIVE_SYMBOL): * src/frame.h (FRAME_PIXEL_WIDTH_TO_TEXT_COLS): * src/regex-emacs.c (PREFETCH_NOLIMIT): * src/window.h (WINDOW_BUFFER): Remove backslash-newline that immediately precedes another newline, as this is not the usual style and is confusing.
* | Fix broken build on m68kPaul Eggert2019-05-131-52/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The GCC + valgrind fix caused the m68k build to fail (Bug#35711). Simplify string allocation a bit to make similar problems less likely in the future. * src/alloc.c (sdata, SDATA_NBYTES, SDATA_DATA) [GC_CHECK_STRING_BYTES]: Use the same implementation as with !GC_CHECK_STRING_BYTES, as the special case is no longer needed. (SDATA_ALIGN): New constant. (SDATA_SIZE): Remove this macro, replacing with ... (sdata_size): ... this new function. All uses changed. Properly account for sizes and alignments even in the m68k case, and even if GC_CHECK_STRING_BYTES is not defined.
* | Rename generic x_* identifiersAlexander Gramiak2019-04-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * src/image.c: Rename x_* procedures to image_*. * src/frame.c: Rename x_* procedures to gui_*. Rename xrdb_get_resource to gui_display_get_resource. Rename x_get_arg to gui_display_get arg. * src/frame.h: Rename can_x_set_window_size to can_set_window_size. * src/xfaces.c: Rename realize_x_face to realize_gui_face. Rename x_supports_face_attributes_p to gui_supports_face_attributes_p. * src/keyboard.c: * src/lisp.h: * src/nsterm.m: * src/w32term.c: * src/xterm.c: Rename x_get_keysym_name to get_keysym_name. * src/nsfns.c: * src/nsterm.m: Rename x_* procedures to ns_*. * src/w32fns.c: * src/w32term.c: Rename x_* procedures to w32_*. * src/termhooks.h (query_colors, get_focus_frame, focus_frame_hook) (frame_visible_invisible_hook, iconify_frame_hook) (set_window_size_hook, set_frame_offset_hook, set_frame_alpha_hook) (set_new_font_hook, set_bitmap_icon_hook, implicit_set_name_hook) (activate_menubar_hook, change_tool_bar_height_hook) (set_scroll_bar_default_width_hook) (set_scroll_bar_default_height_hook, get_string_resource_hook): New terminal hooks to replace backend-specific x_* procedures. * src/dispextern.h (clear_under_internal_border): New RIF procedure. * src/alloc.c: * src/frame.c: * src/xdisp.c: Use FRAME_OUTPUT_DATA instead of FRAME_X_OUTPUT. * src/frame.c: * src/w32term.c: * src/w32fns.c: Use FRAME_NATIVE_WINDOW instead of FRAME_X_WINDOW.
* | Minor tweaks to recent UBSan-related fixPaul Eggert2019-04-251-14/+6
| | | | | | | | | | | | | | | | | | | | * src/alloc.c: No need to include stdalign.h; it’s pervasive. (GC_STRING_OVERRUN_COOKIE_SIZE): Align to sdata’s alignment, so that the code works even if alignof (sdata) exceeds 8. Don’t require the cookie size to be 8, as this overly fattens 32-bit platforms and one DEADBEEF should be enough. (GC_STRING_EXTRA): Omit now-unnecessary ‘verify’. (allocate_string_data): Omit unnecessary cast.
* | Make sure that ‘sdata’ objects in ‘sblock’ objects are aligned.Philipp Stephani2019-04-251-2/+10
| | | | | | | | | | | | | | | | | | Issue found by Clang’s UBSan. * src/alloc.c (GC_STRING_OVERRUN_COOKIE_SIZE): Increase to 8. (string_overrun_cookie): Extend accordingly. (GC_STRING_EXTRA): Ensure that it’s properly aligned for ‘sdata’. (allocate_string_data): Verify that ‘sdata’ blocks remain aligned.
* | Remove --enable-checking=xmallocoverrunPaul Eggert2019-04-211-168/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | It doesn’t work anymore, and these days ‘gcc -fsanitize=address’ does a better job anyway. * configure.ac: Remove the option. * configure.ac (ac_xmalloc_overrun, XMALLOC_OVERRUN_CHECK): * src/alloc.c (XMALLOC_OVERRUN_CHECK_OVERHEAD) (XMALLOC_OVERRUN_CHECK_SIZE, XMALLOC_OVERRUN_SIZE_SIZE) (xmalloc_overrun_check_header, xmalloc_overrun_check_trailer) (xmalloc_put_size, xmalloc_get_size, overrun_check_malloc) (overrun_check_realloc, overrun_check_free): Remove. All uses removed. * etc/NEWS: Mention this.
* | Remove --enablechecking=conslist configure optionPaul Eggert2019-04-211-16/+0
| | | | | | | | | | | | | | | | | | * configure.ac: Remove the option. * configure.ac (ac_gc_check_cons_list, GC_CHECK_CONS_LIST): * src/alloc.c (check_cons_list) [GC_CHECK_CONS_LIST]: * src/lisp.h (lisp_h_check_cons_list, check_cons_list): Remove. All uses removed. * etc/NEWS: Mention this.
* | Simplify XPNTRPaul Eggert2019-04-211-29/+3
| | | | | | | | | | | | | | | | Because XPNTR now uses ATTRIBUTE_NO_SANITIZE_UNDEFINED, it can be simplified. * src/alloc.c (macro_PNTR_ADD, PNTR_ADD, macro_XPNTR): Remove. (XPNTR): Open-code rather than using the removed macros and functions. Also, simplify by using LISP_WORD_TAG.
* | Port to recent gcc -fsanitize=undefinedPaul Eggert2019-04-211-5/+1
| | | | | | | | | | | | | | | | | | * src/alloc.c (XPNTR): Add ATTRIBUTE_NO_SANITIZE_UNDEFINED and remove ATTRIBUTE_UNUSED. Do not define as a macro, so that ATTRIBUTE_NO_SANITIZE_UNDEFINED works. * src/lisp.h (lisp_h_XSYMBOL): Remove. All uses removed. With recent GCC the macro does not work with -fsanitize=undefined, and the macro can be omitted as its only function is to optimize -O0.
* | Fix GC_CHECK_STRING_BYTES false alarm with pdumperPaul Eggert2019-04-191-1/+1
| | | | | | | | | | * src/alloc.c (string_bytes): Don’t abort on strings taken from the dumped file.
* | ; * src/alloc.c (xrealloc): Fix typo.Philipp Stephani2019-04-201-1/+1
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* | ; * src/alloc.c (HAVE_MODULES): remove unused constantPhilipp Stephani2019-04-191-4/+0
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* | Remove some #ifdefs for user pointers.Philipp Stephani2019-04-191-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Even if Emacs is compiled without module support, we don't have to comment out every bit of user pointer support. Defining the basic structures and functions and detecting user pointers in switch statements is harmless, and we're already doing the same for module functions. Removing these #ifdefs makes the code a bit easier to read. * src/lisp.h (PVEC_USER_PTR, struct Lisp_User_Ptr, USER_PTRP) (XUSER_PTR): Define unconditionally. * src/data.c (Ftype_of): * src/alloc.c (cleanup_vector): * src/print.c (print_vectorlike): * src/pdumper.c (dump_vectorlike): Remove #ifdef for user pointers.
* | Remove special-casing of tagged pointers.Philipp Stephani2019-04-191-11/+2
| | | | | | | | | | | | | | | | | | This partially reverts commit 09b2b8a5ce5b542856f93b645db51eb11cf9855a. * src/alloc.c (mark_maybe_pointer): Remove special-casing of tagged pointers. After commit 09d746dad36e4780d379f975a84b1b076da78c50, modules no longer rely on tagged pointers.
* | Allow gap before first non-Lisp pseudovec memberPaul Eggert2019-04-081-10/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | Problem reported by Keith David Bershatsky in: https://lists.gnu.org/r/emacs-devel/2019-04/msg00259.html Solution suggested by Stefan Monnier in: https://lists.gnu.org/r/emacs-devel/2019-04/msg00282.html * src/buffer.h (BUFFER_LISP_SIZE): Simplify by using PSEUDOVECSIZE. (BUFFER_REST_SIZE): Simplify by using VECSIZE and BUFFER_LISP_SIZE. * src/lisp.h (PSEUDOVECSIZE): Base it on the last Lisp field, not the first non-Lisp field. All callers changed. Callers without Lisp fields changed to use ALLOCATE_PLAIN_PSEUDOVECTOR. (ALLOCATE_PLAIN_PSEUDOVECTOR): New macro.
* | Simpler way to export HAVE_X_WINDOWS to GDBPaul Eggert2019-03-271-0/+7
| | | | | | | | | | | | | | | | | | | | * src/.gdbinit: Simplify by removing dependency on globals implementation. This is useful for a future performance improvement that I have in mind. * src/alloc.c (enum defined_HAVE_X_WINDOWS, defined_HAVE_X_WINDOWS): New enum and constant. (gdb_make_enums_visible) [__GNUC__]: Use it, to make defined_HAVE_X_WINDOWS visible to GDB.
* | Fix alignment bug with pure bignumsPaul Eggert2019-03-251-4/+9
| | | | | | | | | | | | | | | | Problem found on 32-bit sparc, which has stricter alignment checking than x86-64. * src/alloc.c (pure_alloc): When TYPE is negative it now specifies the negation of the required alignment of the result. (make_pure_bignum): Specify bignum limb alignment.
* | Fix misuses of NULL when talking about the NUL characterStefan Monnier2019-03-211-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * lisp/subr.el (inhibit-null-byte-detection): Make it an obsolete alias. * src/coding.c (setup_coding_system): Use new name. (detect_coding): Rename null_byte_found => nul_byte_found. (detect_coding_system): Use new name. Rename null_byte_found => nul_byte_found. (Fdefine_coding_system_internal): Use new name. (syms_of_coding): Rename inhibit-null-byte-detection to inhibit-nul-byte-detection. * src/w16select.c (get_clipboard_data): null_char => nul_char. * src/json.c (check_string_without_embedded_nuls): Rename from check_string_without_embedded_nulls. (Fjson_parse_string): Adjust accordingly. * src/coding.h (enum define_coding_undecided_arg_index) (enum coding_attr_index): ...null_byte... => ...nul_byte.... * lisp/info.el (info-insert-file-contents, Info-insert-dir): * lisp/international/mule.el (define-coding-system): * lisp/vc/vc-git.el (vc-git--call): * doc/lispref/nonascii.texi (Lisp and Coding Systems): Use the new name.
* | Use ‘const’ to clarify GC markingPaul Eggert2019-03-191-16/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add ‘const’ to make the GC marking code a bit clearer. This can also help the compiler in some cases, I think because GCC can now determine more often that the value of a static C variable can be cached when its address is now converted to ‘Lisp Object const *’ before escaping. * src/alloc.c (staticvec, mark_maybe_objects, mark_memory) (mark_stack, staticpro, mark_object_root_visitor) (garbage_collect_1): * src/pdumper.c (dump_ptr_referrer, dump_emacs_reloc_to_lv) (dump_emacs_reloc_to_emacs_ptr_raw, dump_root_visitor): * src/lisp.h (vcopy, struct gc_root_visitor): * src/sysdep.c (stack_overflow): * src/thread.c (mark_one_thread): * src/thread.h (struct thread_state): Use pointer-to-const instead of plain pointer in some GC-related places where either will do.
* | * src/alloc.c (gcstat): Now static.Paul Eggert2019-03-041-1/+1
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* | Simplify list creation in C codePaul Eggert2019-03-041-24/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* | Fix typo in previous changePaul Eggert2019-03-021-5/+5
| | | | | | | | | | | | | | * src/alloc.c (memory_full_cons_threshold): Move to after definition of struct cons_block. Problem reported by Basil L. Contovounesios in: https://lists.gnu.org/r/emacs-devel/2019-03/msg00067.html
* | memory_full_cons_threshold is a constantPaul Eggert2019-03-021-8/+4
| | | | | | | | | | * src/alloc.c (memory_full_cons_threshold): Now const. (memory_full): Omit no-longer-needed initialization.
* | Avoid staticvec duplicatesPaul Eggert2019-03-021-0/+2
| | | | | | | | | | | | | | | | * src/alloc.c (staticpro) [ENABLE_CHECKING]: Check for duplicates. * src/keyboard.c (syms_of_keyboard): Define while-no-input-ignore-events and inhibit--record-char here ... (syms_of_keyboard_for_pdumper): ... instead of here. This avoids duplicates in staticvec.
* | Suppress GC stats when obviously not neededPaul Eggert2019-03-011-124/+113
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This should help future improvements where these stats can be bignums that do not fit into intmax_t. * src/alloc.c (struct gcstat, gcstat): New type and static var, to package up GC statistics into one C object. It replaces ... (total_free_intervals, total_intervals, total_strings) (total_free_strings, total_string_bytes, total_vectors) (total_vector_slots, total_free_vector_slots): ... these removed static vars. All uses changed. (garbage_collect_1): Accept a struct gcstat *, not a void * which was not used anymore anyway. Return a bool indicating success, instead of a Lisp object. All callers changed. (garbage_collect): New function. All C callers of Fgarbage_collect changed to use it, since none of them use the return value. Now, only Lisp code uses Fgarbage_collect. (Fgarbage_collect): No longer noinline. Cons up the return value here, not in garbage_collect_1.