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* Do not include <attribute.h> from <config.h>Paul Eggert2022-03-081-0/+2
| | | | | | | | | | | | This is because mod-test.c shouldn’t use source code from lib, but it does need to include <config.h>. * lib-src/ebrowse.c, lib-src/emacsclient.c, lib-src/etags.c: * lib-src/make-docfile.c, lib-src/movemail.c: * lib-src/seccomp-filter.c, src/dynlib.h, src/lisp.h: * src/syssignal.h, src/sysstdio.h, src/systhread.h, src/tparam.h: Include <attribute.h>. * src/conf_post.h: Do not include <attribute.h>. All uses of attribute.h macros replaced with their _GL_ equivalents.
* ; Add 2022 to copyright years.Eli Zaretskii2022-01-011-1/+1
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* Update copyright year to 2021Paul Eggert2021-01-011-1/+1
| | | | Run "TZ=UTC0 admin/update-copyright".
* Update copyright year to 2020Paul Eggert2020-01-011-1/+1
| | | | Run "TZ=UTC0 admin/update-copyright $(git ls-files)".
* Prefer static to extern where either will doPaul Eggert2019-01-311-1/+0
| | | | | | | | | | | | | | | | | | * src/charset.c (charset_table_size): * src/pdumper.c (dump_private): * src/sysdep.c (init_sigsegv): * src/window.c (old_selected_window): Now static. * src/charset.c (charset_table_size): Now int, since the value always fits in int. * src/gtkutil.c (xg_gtk_initialized): Now present only if HAVE_XWIDGETS, to make it clearer that this is an xwidgets hack. All uses changed. * src/lread.c (ndefsubr): Remove; unused. * src/pdumper.h: Use usual GNU indenting style for functions, since my static-vs-extern checking hack relies on it. (dump_public): Always declare; simpler and doesn’t hurt. (pdumper_handle_page_fault): Remove unused decl.
* Add portable dumperDaniel Colascione2019-01-151-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* Merge from origin/emacs-26Paul Eggert2018-12-311-1/+1
|\ | | | | | | | | | | 2fcf2df Fix copyright years by hand 26bed8b Update copyright year to 2019 2814292 Fix value of default frame height. (Bug#33921)
| * Update copyright year to 2019Paul Eggert2019-01-011-1/+1
| | | | | | | | Run 'TZ=UTC0 admin/update-copyright $(git ls-files)'.
* | Merge from origin/emacs-26Paul Eggert2018-01-011-1/+1
|\ \ | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 63b04c11d5 Fix copyright years by hand 5c7dd8a783 Update copyright year to 2018 220a9ecba1 Merge from Gnulib 312c565566 Don't add empty keyboard macro to macro ring (Bug#24992) 39ca289a7a Allow customization of decoding of "man" command f8240815ea * etc/NEWS: Add security consideration note on passphrase ... 0c78822c70 Fix subtle problem with scroll-down when scroll-margin is ... acd289c5a4 Fix problems with indexing in User manual b240c7846b * lisp/help.el (describe-key): Only (copy-sequence elt) wh... e879a5444a * src/buffer.c (Frestore_buffer_modified_p): Fix bug#29846 81b1028b63 Improve documentation of 'inhibit-modification-hooks' and ... 7175496d7a Fix doc string of 'enable-recursive-minibuffers' 5b38406491 Fix documentation of delsel and of killing text # Conflicts: # etc/NEWS # etc/refcards/ru-refcard.tex
| * Update copyright year to 2018Paul Eggert2018-01-011-1/+1
| | | | | | | | Run admin/update-copyright.
* | Make main_thread_id privatePaul Eggert2017-12-241-1/+0
|/ | | | | * src/sysdep.c (main_thread_id) [FORWARD_SIGNAL_TO_MAIN_THREAD]: Now static.
* Prefer HTTPS to FTP and HTTP in documentationPaul Eggert2017-09-131-1/+1
| | | | | | | | | | | | | Most of this change is to boilerplate commentary such as license URLs. This change was prompted by ftp://ftp.gnu.org's going-away party, planned for November. Change these FTP URLs to https://ftp.gnu.org instead. Make similar changes for URLs to other organizations moving away from FTP. Also, change HTTP to HTTPS for URLs to gnu.org and fsf.org when this works, as this will further help defend against man-in-the-middle attacks (for this part I omitted the MS-DOS and MS-Windows sources and the test tarballs to keep the workload down). HTTPS is not fully working to lists.gnu.org so I left those URLs alone for now.
* Merge from origin/emacs-25Paul Eggert2017-01-011-1/+1
|\ | | | | | | | | 2e2a806 Fix copyright years by hand 5badc81 Update copyright year to 2017
| * Update copyright year to 2017Paul Eggert2016-12-311-1/+1
| | | | | | | | Run admin/update-copyright.
* | Rename main_thread to main_thread_id and simplifyPaul Eggert2016-12-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | * src/emacs-module.c: Include syssignal.h, for main_thread_id. [HAVE_PTHREAD]: Do not include pthread.h. (main_thread): Remove. All uses replaced by main_thread_id, or by dwMainThreadId on NT. Since the HAVE_PTHREAD code is now using the main_thread_id established by sysdep.c, there is no need for a separate copy of the main thread ID here. (module_init): Remove. All uses removed. * src/sysdep.c (main_thread_id) [HAVE_PTHREAD]: Rename from main_thread. All uses changed. Now extern.
* | Fix crashes upon C-g on Posix TTY framesEli Zaretskii2016-12-191-0/+2
|/ | | | | | | | | | | | | | | | | | * src/thread.h (struct thread_state): New member not_holding_lock. (maybe_reacquire_global_lock): Add prototype. * src/thread.c: Include syssignal.h. (maybe_reacquire_global_lock): New function. (really_call_select): Set the not_holding_lock member of the thread state before releasing the lock, and rest it after re-acquiring the lock when the select function returns. Block SIGINT while doing this to make sure we are not interrupted on TTY frames. * src/sysdep.c (block_interrupt_signal, restore_signal_mask): New functions. * src/syssignal.h (block_interrupt_signal, restore_signal_mask): Add prototypes. * src/keyboard.c (read_char) [THREADS_ENABLED]: Call maybe_reacquire_global_lock. (Bug#25178)
* Rework C source files to avoid ^(Paul Eggert2016-03-101-2/+2
| | | | | | | | Work around Bug#22884 by rewording comments and strings to avoid ‘(’ at the start of a line unless it starts a function. This change is a short-term hack; in the longer run we plan to fix cc-mode’s performance for C files that have ‘(’ at the start of a line in a comment or string.
* Update copyright year to 2016Paul Eggert2016-01-011-1/+1
| | | | Run admin/update-copyright.
* Make src headers idempotent and standalonePaul Eggert2015-10-161-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Redo src/*.h so that each include file is idempotent (that is, can be included multiple times with the latter inclusions having no effect) and standalone (that is, can be included by itself, with no include file other than config.h needed as a prerequisite). This is standard practice in GNU programs nowadays. * lwlib/lwlib-widget.h, src/buffer.h, src/category.h, src/character.h: * src/charset.h, src/coding.h, src/commands.h, src/disptab.h: * src/fontset.h, src/gnutls.h, src/indent.h, src/keymap.h, src/macros.h: * src/regex.h [emacs]: * src/syntax.h, src/systty.h, src/termhooks.h: Include lisp.h, for Lisp_Object. * src/buffer.h, src/category.h, src/cm.h, src/commands.h, src/disptab.h: * src/indent.h, src/intervals.h, src/keyboard.h, src/macros.h: * src/process.h, src/puresize.h, src/region-cache.h, src/syntax.h: * src/syssignal.h, src/sysstdio.h, src/systty.h, src/termchar.h: * src/termopts.h, src/tparam.h, src/unexec.h: Protect against multiple inclusion. * src/buffer.h: Include character.h, for STRING_CHAR. * src/emacsgtkfixed.h (struct frame): * src/fontset.h (struct face): * src/region-cache.h (struct buffer): * src/termhooks.h (struct glyph): * src/xsettings.h (struct x_display_info): Add possibly-forward decl. * src/syntax.h: Include buffer.h, for BVAR. * src/sysselect.h: Include lisp.h, for eassume. * src/termchar.h: Include <stdio.h>, for FILE. * src/widget.h: Include <X11/IntrinsicP.h>, for Widget. * src/xsettings.h: Include <X11/Xlib.h>, for XEvent.
* Enable CPU profiling on CygwinKen Brown2015-06-221-3/+7
| | | | | | | | * src/syssignal.h [CYGWIN] (PROFILER_CPU_SUPPORT): Revert previous change that undefined this. (SIGEV_SIGNAL): Ensure that this is defined as a macro. * src/profiler.c [CYGWIN] (timer_getoverrun): Define as a macro on Cygwin.
* Drop support for CPU profiling on CygwinKen Brown2015-06-211-1/+3
| | | | | * src/syssignal.h (PROFILER_CPU_SUPPORT): Don't define on Cygwin. (Bug#20843)
* Update copyright year to 2015Paul Eggert2015-01-011-1/+1
| | | | Run admin/update-copyright.
* Port signal-handling to DragonFly BSD.Paul Eggert2014-06-011-0/+2
| | | | | | | | | * callproc.c, sysdep.c (block_child_signal, unblock_child_signal): Move implementations from callproc.c to sysdep.c. * process.h, syssignal.h (block_child_signal, unblock_child_signal): Move declaratations from process.h to syssignal.h. Fixes: debbugs:17646
* Port recent signal-related changes to FreeBSD.Paul Eggert2014-03-271-0/+2
| | | | | | | Problem reported by Herbert J. Skuhra. * lisp.h (block_tty_out_signal, unblock_tty_out_signal): Move decls from here ... * syssignal.h: ... to here, so that lisp.h doesn't depend on signal.h.
* Update copyright year to 2014 by running admin/update-copyright.Paul Eggert2014-01-011-1/+1
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* Use bool for boolean, focusing on headers.Paul Eggert2013-12-141-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * configure.ac (PTY_OPEN, GC_MARK_SECONDARY_STACK): Use bool for boolean. * lib-src/emacsclient.c, lib-src/etags.c, lib-src/hexl.c (FALSE, TRUE): Remove. All uses replaced with uncapitalized version. * lib-src/emacsclient.c (message): * lib-src/etags.c (make_tag, pfnote, consider_token, make_C_tag, lang_names): * lib-src/hexl.c (un_flag, iso_flag, endian): * lib-src/pop.c (pop_debug, pop_open, pop_multi_first, pop_multi_next) (pop_trash): Use bool for boolean. * lib-src/etags.c (bool): Remove. * lib-src/etags.c (globals, members, declarations, no_line_directive) (no_duplicates): Use 'int' for boolean values that getopt requires to be 'int'. Formerly, these were 'bool' and 'bool' was 'int', but we can no longer rely on this implementation. * lib-src/pop.h (struct _popserver): Use bool_bf for boolean bit-fields. * lwlib/xlwmenuP.h (XlwMenu_part): Use bool_bf for boolean bit-fields. * src/atimer.h, src/lisp.h, src/syssignal.h, src/syswait.h, src/unexelf.c: No need to include <stdbool.h>, since conf_post.h does it now. * src/buffer.h (BUF_COMPUTE_UNCHANGED, DECODE_POSITION) (BUFFER_CHECK_INDIRECTION, GET_OVERLAYS_AT, PER_BUFFER_VALUE_P) (SET_PER_BUFFER_VALUE_P): * src/ccl.c, src/ccl.h (setup_ccl_program): * src/ccl.h (CHECK_CCL_PROGRAM): * src/character.h (MAKE_CHAR_UNIBYTE, CHECK_CHARACTER_CAR) (CHECK_CHARACTER_CDR, CHAR_STRING_ADVANCE, NEXT_CHAR_BOUNDARY) (PREV_CHAR_BOUNDARY, FETCH_STRING_CHAR_ADVANCE) (FETCH_STRING_CHAR_AS_MULTIBYTE_ADVANCE) (FETCH_STRING_CHAR_ADVANCE_NO_CHECK, FETCH_CHAR_ADVANCE) (FETCH_CHAR_ADVANCE_NO_CHECK, INC_POS, DEC_POS, INC_BOTH) (DEC_BOTH, BUF_INC_POS, BUF_DEC_POS): * src/charset.h (CHECK_CHARSET, CHECK_CHARSET_GET_ID) (CHECK_CHARSET_GET_ATTR, CHECK_CHARSET_GET_CHARSET) (CHARSET_FAST_MAP_SET): * src/coding.c (decode_coding_ccl, encode_coding_ccl): * src/coding.h (CHECK_CODING_SYSTEM, CHECK_CODING_SYSTEM_GET_SPEC) (CHECK_CODING_SYSTEM_GET_ID, SJIS_TO_JIS, SJIS_TO_JIS2) (JIS_TO_SJIS, JIS_TO_SJIS2, ENCODE_FILE, DECODE_FILE) (ENCODE_SYSTEM, DECODE_SYSTEM, ENCODE_UTF_8) (decode_coding_c_string): * src/composite.h (COMPOSITION_DECODE_REFS, COMPOSITION_DECODE_RULE): * src/conf_post.h (has_attribute): * src/dispextern.h (trace_redisplay_p): (INC_TEXT_POS, DEC_TEXT_POS, SET_GLYPH_FROM_GLYPH_CODE) (SET_CHAR_GLYPH, SET_CHAR_GLYPH_FROM_GLYPH) (SET_GLYPH_FROM_CHAR_GLYPH): (WINDOW_WANTS_MODELINE_P, WINDOW_WANTS_HEADER_LINE_P) (FACE_SUITABLE_FOR_ASCII_CHAR_P, FACE_SUITABLE_FOR_CHAR_P) (PRODUCE_GLYPHS, reset_mouse_highlight, in_display_vector_p) (cursor_in_mouse_face_p): * src/dispnew.c (adjust_glyph_matrix, clear_glyph_matrix_rows) (blank_row, prepare_desired_row) (build_frame_matrix_from_leaf_window, make_current) (mirror_make_current, mirrored_line_dance, mirror_line_dance) (update_window, scrolling_window, update_frame_line): * src/disptab.h (GLYPH_FOLLOW_ALIASES): * src/editfns.c (Fformat): * src/font.h (FONT_WEIGHT_SYMBOLIC, FONT_SLANT_SYMBOLIC) (FONT_WIDTH_SYMBOLIC, FONT_WEIGHT_FOR_FACE, FONT_SLANT_FOR_FACE) (FONT_WIDTH_FOR_FACE, FONT_WEIGHT_NAME_NUMERIC) (FONT_SLANT_NAME_NUMERIC, FONT_WIDTH_NAME_NUMERIC) (FONT_SET_STYLE, CHECK_FONT, CHECK_FONT_SPEC, CHECK_FONT_ENTITY) (CHECK_FONT_OBJECT, CHECK_FONT_GET_OBJECT, FONT_ADD_LOG) (FONT_DEFERRED_LOG): * src/frame.h (FRAME_W32_P, FRAME_MSDOS_P, FRAME_WINDOW_P): (FRAME_EXTERNAL_TOOL_BAR, FRAME_EXTERNAL_MENU_BAR, FOR_EACH_FRAME) (FRAME_MOUSE_UPDATE): * src/fringe.c (Fdefine_fringe_bitmap): * src/image.c (x_create_bitmap_from_data, x_create_bitmap_mask) (x_create_bitmap_from_xpm_data, xpm_load_image): * src/intervals.h (INTERVAL_HAS_PARENT, INTERVAL_PARENT) (set_interval_parent, RESET_INTERVAL, COPY_INTERVAL_CACHE) (MERGE_INTERVAL_CACHE): * src/keymap.h (KEYMAPP): * src/lisp.h (eassert, USE_LSB_TAG, CHECK_LISP_OBJECT_TYPE) (STRING_SET_UNIBYTE, STRING_SET_MULTIBYTE, DEFSYM, PSEUDOVECTORP) (CHECK_RANGED_INTEGER, CHECK_TYPE_RANGED_INTEGER) (CHECK_NUMBER_COERCE_MARKER, CHECK_NUMBER_OR_FLOAT_COERCE_MARKER) (DEFVAR_LISP, DEFVAR_LISP_NOPRO, DEFVAR_BOOL, DEFVAR_INT) (DEFVAR_BUFFER_DEFAULTS, DEFVAR_KBOARD, QUIT) (RETURN_UNGCPRO, USE_SAFE_ALLOCA, SAFE_NALLOCA, SAFE_FREE) (SAFE_ALLOCA_LISP, FOR_EACH_ALIST_VALUE, functionp): * src/syntax.h (SYNTAX_ENTRY, SYNTAX_WITH_FLAGS, SYNTAX) (UPDATE_SYNTAX_TABLE_FORWARD, UPDATE_SYNTAX_TABLE_BACKWARD) (SETUP_BUFFER_SYNTAX_TABLE): * src/systime.h (timespec_valid_p): * src/term.c (save_and_enable_current_matrix): * src/window.h (WINDOW_MENU_BAR_P, WINDOW_TOOL_BAR_P): * src/xdisp.c (in_display_vector_p, display_tool_bar_line) (redisplay_internal, try_window_reusing_current_matrix) (sync_frame_with_window_matrix_rows, try_window_id) (display_menu_bar, display_tty_menu_item, display_mode_line) (coords_in_mouse_face_p, cursor_in_mouse_face_p): * src/xmenu.c (xmenu_show): * src/xterm.c (use_xim, x_term_init): * src/xterm.h (XSync, GTK_CHECK_VERSION, use_xim, SET_SCROLL_BAR_X_WIDGET) (struct x_bitmap_record): Use bool for booleans. * src/ccl.c (struct buffer_text): * src/ccl.h (struct ccl_program): * src/charset.h (struct charset): * src/cm.h (struct cm): * src/coding.h (struct iso_2022_spec, struct coding_system): * src/dispextern.h (struct glyph, struct glyph_matrix, struct glyph_row) (struct glyph_string, struct face, struct face_cache) (struct bidi_string_data, struct bidi_it) (struct draw_fringe_bitmap_params, struct it, Mouse_HLInfo) (struct image): * src/editfns.c (Fformat): * src/frame.h (struct frame): * src/fringe.c (struct fringe_bitmap): * src/intervals.h (struct interval): * src/keyboard.h (struct kboard): * src/lisp.h (struct Lisp_Symbol, struct Lisp_Misc_Any, struct Lisp_Marker) (struct Lisp_Overlay, struct Lisp_Save_Value, struct Lisp_Free) (struct Lisp_Buffer_Local_Value, union specbinding): * src/macfont.m (struct macfont_info): * src/process.h (struct Lisp_Process): * src/termchar.h (struct tty_display_info): * src/window.h (struct window): * src/xterm.h (struct x_output): Use bool_bf for boolean bit-fields. * src/ccl.c (setup_ccl_program): Now returns bool instead of -1 or 0. All callers changed. * src/ccl.h (struct ccl_program): Remove unused members private_state, src_multibyte, dst_multibyte, cr_consumed, suppress_error, eight_bit_control. (struct ccl_spec): Remove unused members cr_carryover, eight_bit_carryover. * src/conf_post.h: Include <stdbool.h>. (bool_bf): New type. * src/dispextern.h (TRACE, PREPARE_FACE_FOR_DISPLAY): * src/interval.h (RESET_INTERVAL, COPY_INTERVAL_CACHE, MERGE_INTERVAL_CACHE) Surround statement macro with proper 'do { ... } while (false)' brackets. (SET_MATRIX_ROW_ENABLED_P): Assume 2nd arg is bool. (PRODUCE_GLYPHS): Simplify use of boolean. * src/fileio.c (Fcopy_file): If I is an integer, prefer 'if (I != 0)' to 'if (I)'. * src/lisp.h (UNGCPRO): Return void, not int. (FOR_EACH_TAIL): Use void expression, not int expression. * src/region-cache.c: Reindent. * src/region-cache.h: Copy comments from region-cache.c, to fix incorrect remarks about booleans.
* Chain glib's SIGCHLD handler from Emacs's (Bug#14474).Paul Eggert2013-06-051-0/+4
| | | | | | | | | | | | | * process.c (dummy_handler): New function. (lib_child_handler): New static var. (handle_child_signal): Invoke it. (catch_child_signal): If a library has set up a signal handler, save it into lib_child_handler. (init_process_emacs): If using glib and not on Windows, tickle glib's child-handling code so that it initializes its private SIGCHLD handler. * syssignal.h (SA_SIGINFO): Default to 0. * xterm.c (x_term_init): Remove D-bus hack that I installed on May 31; it should no longer be needed now.
* Merge from emacs-24; up to 2012-12-06T01:39:03Z!monnier@iro.umontreal.caPaul Eggert2013-01-021-1/+1
|\
| * Update copyright notices for 2013.Paul Eggert2013-01-011-1/+1
| |
* | Assume POSIX 1003.1-1988 or later for signal.h.Paul Eggert2012-12-071-20/+0
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Exceptions: do not assume SIGCONT, SIGSTOP, SIGTSTP, SIGTTIN, SIGTTOU, SIGUSR1, SIGUSR2, as Microsoft platforms lack these. * admin/CPP-DEFINES (SIGALRM, SIGCHLD, SIGHUP, SIGKILL, SIGPIPE, SIGQUIT): Remove. (SIGTRAP): Remove this one too, as config.h no longer defines it. * admin/merge-gnulib (GNULIB_MODULES): Add sig2str. * configure.ac (PTY_OPEN, PTY_TTY_NAME_SPRINTF): Use SIGCHLD rather than SIGCLD. * lib/sig2str.c, lib/sig2str.h, m4/sig2str.m4: New files, from gnulib. * lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate. * lib/makefile.w32-in (GNULIBOBJS): Add $(BUILD)/sig2str.$(O). * src/process.c [subprocesses]: Include <c-ctype.h>, <sig2str.h>. (deleted_pid_list, Fdelete_process, create_process) (record_child_status_change, handle_child_signal, deliver_child_signal) (init_process_emacs, syms_of_process): Assume SIGCHLD is defined. (parse_signal): Remove. All uses removed. (abbr_to_signal): New static function. (Fsignal_process): Use it to convert signal names to ints. * src/sysdep.c (sys_suspend) [!DOS_NT]: Use kill (0, ...) rather than kill (getpgrp (), ...). (emacs_sigaction_init): Assume SIGCHLD is defined. (init_signals): Assume SIGALRM, SIGCHLD, SIGHUP, SIGKILL, SIGPIPE, and SIGQUIT are defined. Do not worry about SIGCLD any more. * src/syssignal.h (EMACS_KILLPG): Remove. All uses replaced by 'kill' with a negative pid. (SIGCHLD): Remove definition, as we now assume SIGCHLD. * src/w32proc.c (sys_kill): Support negative pids compatibly with POSIX. Fixes: debbugs:13026
* Improve sys_siglist detection.Paul Eggert2012-10-061-1/+1
| | | | | | | | | | | * configure.ac (sys_siglist): Look for its decl in <signal.h>. Otherwise, it's not found in either Fedora 17 or Solaris 11. * src/sysdep.c (sys_siglist, init_signals): Use _sys_siglist if it's defined as a macro, as is done in Solaris. (sys_siglist_entries): New macro. (save_strsignal): Use it. * src/syssignal.h (safe_strsignal): Now ATTRIBUTE_CONST, to pacify GCC 4.7.2 on Fedora 17 with the fixed sys_siglist detection.
* Port timers to OpenBSD, plus check for timer failures.Paul Eggert2012-10-031-2/+6
| | | | | | | | | | | | OpenBSD problem reported by Han Boetes. * profiler.c (setup_cpu_timer): Check for failure of timer_settime and/or setitimer. (Fprofiler_cpu_stop): Don't assume HAVE_SETITIMER. * syssignal.h (HAVE_ITIMERSPEC): New macro. This is for platforms like OpenBSD, which has timer_settime but does not declare it. OpenBSD does not define SIGEV_SIGNAL, so use that when deciding whether to use itimerspec-related primitives. All uses of HAVE_TIMER_SETTIME replaced with HAVE_ITIMERSPEC.
* Fix a malloc race condition involving strsignal.Paul Eggert2012-10-011-2/+2
| | | | | | | | | | | | | | | | | | A signal can arrive in the middle of a malloc, and Emacs's signal handler can invoke strsignal, which can invoke malloc, which is not portable. This race condition bug makes Emacs hang on GNU/Linux. Fix it by altering the signal handler so that it does not invoke strsignal. * emacs.c (shut_down_emacs): Use safe_strsignal, not strsignal. * process.c (status_message): Use const pointer, in case strsignal is #defined to safe_strsignal. * sysdep.c (sys_siglist, init_signals): Always define and initialize a substitute sys_siglist if the system does not define one, even if HAVE_STRSIGNAL. (safe_strsignal): Rename from strsignal. Always define, using sys_siglist. Return a const pointer. * syssignal.h (safe_strsignal): New decl. (strsignal) [!HAVE_STRSIGNAL]: Define in terms of safe_strsignal.
* * syssignal.h (PROFILER_CPU_SUPPORT): Don't define if PROFILING.Paul Eggert2012-09-301-1/+2
| | | | | Suggested by Eli Zaretskii in <http://lists.gnu.org/archive/html/emacs-devel/2012-09/msg00811.html>.
* Profiler improvements: more-accurate timers, overflow checks.Paul Eggert2012-09-291-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * profiler.c: Don't include stdio.h, limits.h, sys/time.h, signal.h, setjmp.h. Include systime.h instead. (saturated_add): New function. (record_backtrace, current_sample_interval): Use EMACS_INT, not size_t. (record_backtrace, handle_profiler_signal): Saturate on fixnum overflow. (profiler_timer, profiler_timer_ok) [HAVE_TIMER_SETTIME]: New static vars. (enum profiler_cpu_running): New enumn. (profiler_cpu_running): Now of that enum type, not bool. All uses changed to store the new value. (handle_profiler_signal): Rename from sigprof_handler_1, for consistency with other handlers. Do not check whether cpu_log is a hash-table if garbage collecting, since it doesn't matter in that case. (deliver_profiler_signal): Rename from sigprof_handler, for consistency with other handlers. (setup_cpu_timer): New function, with much of what used to be in Fprofiler_cpu_start. Check for out-of-range argument. Prefer timer_settime if available, and prefer thread cputime clocks, then process cputime clocks, then monotonic clocks, to the old realtime clock. Use make_timeval to round more-correctly when falling back to setitimer. (Fprofiler_cpu_start): Use it. (Fprofiler_cpu_stop): Prefer timer_settime if available. Don't assume that passing NULL as the 2nd argument of setitimer is the same as passing a pointer to all-zero storage. Ignore SIGPROF afterwards. (malloc_probe): Saturate at MOST_POSITIVE_FIXNUM. * sysdep.c (emacs_sigaction_init): Also mask out SIGPROF in non-fatal signal handlers. Ignore SIGPROF on startup. * syssignal.h (PROFILER_CPU_SUPPORT): Define this macro here, not in profiler.c, since sysdep.c now uses it.
* Simplify and avoid signal-handling races.Paul Eggert2012-09-231-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * nt/inc/ms-w32.h (emacs_raise): New macro. * src/alloc.c (die): * src/sysdep.c (emacs_abort) [HAVE_NTGUI]: Avoid recursive loop if there's a fatal error in the function itself. * src/atimer.c (pending_atimers): * src/blockinput.h: Don't include "atimer.h"; no longer needed. (interrupt_input_pending): Remove. All uses removed. pending_signals now counts both atimers and ordinary interrupts. This is less racy than having three separate pending-signal flags. (block_input, unblock_input, totally_unblock_input, unblock_input_to) (input_blocked_p): Rename from their upper-case counterparts BLOCK_INPUT, UNBLOCK_INPUT, TOTALLY_UNBLOCK_INPUT, UNBLOCK_INPUT_TO, INPUT_BLOCKED_P, and turn into functions. All uses changed. This makes it easier to access volatile variables more accurately. (BLOCK_INPUT_RESIGNAL): Remove. All uses replaced by unblock_input (). (input_blocked_p): Prefer this to 'interrupt_input_blocked', as that's more reliable if the code is buggy and sets interrupt_input_blocked to a negative value. All uses changed. * src/atimer.c (deliver_alarm_signal): Remove. No need to deliver this to the parent; any thread can handle this signal now. All uses replaced by underlying handler. * src/atimer.c (turn_on_atimers): * src/dispnew.c (handle_window_change_signal): * src/emacs.c (handle_danger_signal): * src/keyboard.c (kbd_buffer_get_event): Don't reestablish signal handler; not needed with sigaction. * src/blockinput.h (UNBLOCK_INPUT_TO, TOTALLY_UNBLOCK_INPUT) (UNBLOCK_INPUT_TO): Rework to avoid unnecessary accesses to volatile variables. (UNBLOCK_INPUT_TO): Now a function. (totally_unblock_input, unblock_input): New decls. * src/data.c (handle_arith_signal, deliver_arith_signal): Move to sysdep.c (init_data): Remove. Necessary stuff now done in init_signal. * src/emacs.c, src/xdisp.c: Include "atimer.h", since we invoke atimer functions. * src/emacs.c (handle_fatal_signal, deliver_fatal_signal): Move to sysdep.c. (fatal_error_code): Remove; no longer needed. (terminate_due_to_signal): Rename from fatal_error_backtrace, since it doesn't always backtrace. All uses changed. No need to reset signal to default, since sigaction and/or die does that for us now. Use emacs_raise (FOO), not kill (getpid (), FOO). (main): Check more-accurately whether we're dumping. Move fatal-error setup to sysdep.c * src/floatfns.c: Do not include "syssignal.h"; no longer needed. * src/gtkutil.c (xg_get_file_name, xg_get_font): Remove no-longer-needed signal-mask manipulation. * src/keyboard.c, src/process.c (POLL_FOR_INPUT): Don't depend on USE_ASYNC_EVENTS, a symbol that is never defined. * src/keyboard.c (read_avail_input): Remove. All uses replaced by gobble_input. (Ftop_level): Use TOTALLY_UNBLOCK_INPUT rather than open code. (kbd_buffer_store_event_hold, gobble_input): (record_asynch_buffer_change) [USABLE_SIGIO]: (store_user_signal_events): No need to mess with signal mask. (gobble_input): If blocking input and there are terminals, simply set pending_signals to 1 and return. All hooks changed to not worry about whether input is blocked. (process_pending_signals): Clear pending_signals before processing them, in case a signal comes in while we're processing. By convention callers now test pending_signals before calling us. (UNBLOCK_INPUT_TO, unblock_input, totally_unblock_input): New functions, to support changes to blockinput.h. (handle_input_available_signal): Now extern. (reinvoke_input_signal): Remove. All uses replaced by handle_async_input. (quit_count): Now volatile, since a signal handler uses it. (handle_interrupt): Now takes bool IN_SIGNAL_HANDLER as arg. All callers changed. Block SIGINT only if not already blocked. Clear sigmask reliably, even if Fsignal returns, which it can. Omit unnecessary accesses to volatile var. (quit_throw_to_read_char): No need to restore sigmask. * src/keyboard.c (gobble_input, handle_user_signal): * src/process.c (wait_reading_process_output): Call signal-handling code rather than killing ourselves. * src/lisp.h: Include <float.h>, for... (IEEE_FLOATING_POINT): New macro, moved here to avoid duplication. (pending_signals): Now volatile. (syms_of_data): Now const if IEEE floating point. (handle_input_available_signal) [USABLE_SIGIO]: (terminate_due_to_signal, record_child_status_change): New decls. * src/process.c (create_process): Avoid disaster if memory is exhausted while we're processing a vfork, by tightening the critical section around the vfork. (send_process_frame, process_sent_to, handle_pipe_signal) (deliver_pipe_signal): Remove. No longer needed, as Emacs now ignores SIGPIPE. (send_process): No need for setjmp/longjmp any more, since the SIGPIPE stuff is now gone. Instead, report an error if errno is EPIPE. (record_child_status_change): Now extern. PID and W are now args. Return void, not bool. All callers changed. * src/sysdep.c (wait_debugging) [(BSD_SYSTEM || HPUX) && !defined (__GNU__)]: Remove. All uses removed. This bug should be fixed now in a different way. (wait_for_termination_1): Use waitpid rather than sigsuspend, and record the child status change directly. This avoids the need to futz with the signal mask. (process_fatal_action): Move here from emacs.c. (emacs_sigaction_flags): New function, containing much of what used to be in emacs_sigaction_init. (emacs_sigaction_init): Use it. Block nonfatal system signals that are caught by emacs, to make races less likely. (deliver_process_signal): Rename from handle_on_main_thread. All uses changed. (BACKTRACE_LIMIT_MAX): Now at top level. (thread_backtrace_buffer, threadback_backtrace_pointers): New static vars. (deliver_thread_signal, deliver_fatal_thread_signal): New functions, for more-accurate delivery of thread-specific signals. (handle_fatal_signal, deliver_fatal_signal): Move here from emacs.c. (deliver_arith_signal): Handle in this thread, not in the main thread, since it's triggered by this thread. (maybe_fatal_sig): New function. (init_signals): New arg DUMPING so that we can be more accurate about whether we're dumping. Caller changed. Treat thread-specific signals differently from process-general signals. Block all signals while handling fatal error; that's safer. xsignal from SIGFPE only on non-IEEE hosts, treating it as fatal on IEEE hosts. When batch, ignore SIGHUP, SIGINT, SIGTERM if they were already ignored. Ignore SIGPIPE unless batch. (emacs_backtrace): Output backtrace for the appropriate thread, which is not necessarily the main thread. * src/syssignal.h: Include <stdbool.h>. (emacs_raise): New macro. * src/xterm.c (x_connection_signal): Remove; no longer needed now that we use sigaction. (x_connection_closed): No need to mess with sigmask now. (x_initialize): No need to reset SIGPIPE handler here, since init_signals does this for us now. Fixes: debbugs:12471
* Remove configure's --without-sync-input option.Paul Eggert2012-09-161-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When auditing signal-handling in preparation for cleaning it up, I found that SYNC_INPUT has race conditions and would be a real pain to fix. Since it's an undocumented and deprecated configure-time option, now seems like a good time to remove it. Also see <http://bugs.gnu.org/11080#16>. * configure.ac (SYNC_INPUT, BROKEN_SA_RESTART): Remove. * admin/CPP-DEFINES (BROKEN_SA_RESTART, SA_RESTART): Remove. * etc/TODO (Make SYNC_INPUT the default): Remove, as the code now behaves as if SYNC_INPUT is always true. * src/alloc.c (_bytes_used, __malloc_extra_blocks, _malloc_internal) (_free_internal) [!DOUG_LEA_MALLOC]: Remove decls. (alloc_mutex) [!SYSTEM_MALLOC && !SYNC_INPUT && HAVE_PTHREAD]: (malloc_hysteresis): (check_depth) [XMALLOC_OVERRUN_CHECK]: (MALLOC_BLOCK_INPUT, MALLOC_UNBLOCK_INPUT): (__malloc_hook, __realloc_hook, __free_hook, BYTES_USED) (dont_register_blocks, bytes_used_when_reconsidered) (bytes_used_when_full, emacs_blocked_free, emacs_blocked_malloc) (emacs_blocked_realloc, reset_malloc_hooks, uninterrupt_malloc): [!SYSTEM_MALLOC && !SYNC_INPUT]: Remove. All uses removed. (MALLOC_BLOCK_INPUT, MALLOC_UNBLOCK_INPUT): Use a different implementation, one that depends on whether the new macro XMALLOC_BLOCK_INPUT_CHECK is defined, not on whether SYNC_INPUT is defined. * src/atimer.c (run_timers, handle_alarm_signal): * src/keyboard.c (pending_signal, poll_for_input_1, poll_for_input) (handle_async_input, process_pending_signals) (handle_input_available_signal, init_keyboard): * src/nsterm.m (ns_read_socket): * src/process.c (wait_reading_process_output): * src/regex.c (immediate_quit, IMMEDIATE_QUIT_CHECK): * src/sysdep.c (emacs_sigaction_init) [SA_RESTART]: (emacs_write): * src/xterm.c (XTread_socket): Assume SYNC_INPUT. * src/conf_post.h (SA_RESTART) [IRIX6_5]: Do not #undef. * src/eval.c (handling_signal): Remove. All uses removed. * src/lisp.h (ELSE_PENDING_SIGNALS): Remove. All uses replaced with the SYNC_INPUT version. (reset_malloc_hooks, uninterrupt_malloc, handling_signal): Remove decls. * src/sysdep.c, src/syssignal.h (main_thread) [FORWARD_SIGNAL_TO_MAIN_THREAD]: Now static. Fixes: debbugs:12450
* Simplify SIGIO usage.Paul Eggert2012-09-121-21/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The code that dealt with SIGIO was crufty and confusing, e.g., it played tricks like "#undef SIGIO" but these tricks were not used consistently. Simplify mostly by not #undeffing standard symbols, e.g., use "defined USABLE_SIGIO" (our symbol, which we can define or not as we please) rather than "defined SIGIO" (standard symbol that we probably shouldn't #undef). * configure.ac (NO_TERMIO, BROKEN_FIONREAD, BROKEN_SIGAIO) (BROKEN_SIGPOLL, BROKEN_SIGPTY): Remove. (USABLE_FIONREAD, USABLE_SIGIO): New symbols. All uses of 'defined SIGIO' replaced with 'defined USABLE_SIGIO', with no need to #undef SIGIO now (which was error-prone). Likewise, all uses of 'defined FIONREAD' replaced with 'defined USABLE_FIONREAD'. * src/admin/CPP_DEFINES (BROKEN_SIGAIO, BROKEN_SIGIO, BROKEN_SIGPOLL) (BROKEN_SIGPTY, NO_TERMIO): Remove. * src/conf_post.h [USG5_4]: Do not include <sys/wait.h> here. Modules that need it can include it. [USG5_4 && emacs]: Likewise, do not include the streams stuff here. * src/dispextern.h (ignore_sigio): New decl. * src/emacs.c (shut_down_emacs): Invoke unrequest_sigio unconditionally, since it's now a no-op if !USABLE_SIGIO. * src/emacs.c (shut_down_emacs): * src/keyboard.c (kbd_buffer_store_event_hold): Use ignore_sigio rather than invoking 'signal' directly. * src/keyboard.c (USABLE_FIONREAD && USG5_4): Include <sys/filio.h>, for FIONREAD. (FIONREAD, SIGIO): Do not #undef. (tty_read_avail_input): Use #error rather than a syntax error. * src/process.c [USG5_4]: Include <sys/stream.h> and <sys/stropts.h>, for I_PIPE, used by SETUP_SLAVE_PTY. (DATAGRAM_SOCKETS): Simplify defn, based on USABLE_FIONREAD. * src/sysdep.c (croak): Remove; no longer needed. This bit of temporary code, with Fred N. Fish's comment that it's temporary, has been in Emacs since at least 1992! (init_sigio, reset_sigio, request_sigio, unrequest_sigio): Arrange for them to be no-ops in all cases when ! USABLE_SIGIO. * src/syssignal.h (croak): Remove decl. (SIGIO, SIGPOO, SIGAIO, SIGPTY): Do not #undef; that's too fragile. * src/systty.h [!NO_TERMIO]: Do not include <termio.h>; no longer needed now that we're termios-only. (FIONREAD, ASYNC) [BROKEN_FIONREAD]: Do not #undef. * src/term.c (dissociate_if_controlling_tty): Use #error rather than a run-time error. Fixes: debbugs:12408
* More signal-handler cleanup.Paul Eggert2012-09-071-1/+4
| | | | | | | | | | | | | | | | | * configure.ac (FLOAT_CHECK_DOMAIN): Comment fix (Bug#12327). * src/floatfns.c: Comment fix. * src/lisp.h (force_auto_save_soon): Declare regardless of SIGDANGER. SIGDANGER might not be in scope so "#ifdef SIGDANGER" is not right, and anyway the declaration is harmless even if SIGDANGER is not defined. * src/syssignal.h (SIGIO): Also #undef if (! defined FIONREAD || defined BROKEN_FIONREAD). systty.h formerly did this, but other source files not surprisingly expected syssignal.h to define, or not define, SIGIO, and it's cleaner to do it that way, for consistency. Include <sys/ioctl.h>, for FIONREAD. * src/systty.h (SIGIO): Do not #undef here; it's now syssignal.h's job. This eliminates a problem whereby other files mysteriously had to include "syssignal.h" before including "systty.h" if they wanted to use "#ifdef SIGIO".
* * syssignal.h (handle_on_main_thread): Always declare,Paul Eggert2012-09-061-1/+2
| | | | | even if FORWARD_SIGNAL_TO_MAIN_THREAD is not defined. This ports to platforms without HAVE_PTHREAD.
* Signal-handler cleanup.Paul Eggert2012-09-061-54/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Emacs's signal handlers were written in the old 4.2BSD style with sigblock and sigmask and so forth, and this led to some inefficiencies and confusion. Rewrite these to use pthread_sigmask etc. without copying signal sets around. Also, get rid of the confusing macros 'SIGNAL_THREAD_CHECK' and 'signal', and instead use functions that do not attempt to take over the system name space. This patch causes Emacs's text segment to shrink by 0.7% on my platform, Fedora 17 x86-64. * configure.ac (PTY_OPEN, PTY_TTY_NAME_SPRINTF): Adjust to syssignal.h changes. (SIGNAL_H_AB): Remove; no longer needed. * src/alloc.c, src/emacsgtkfixed.c, src/nsfns.m, src/widget.c, src/xmenu.c: Do not include <signal.h> or "syssignal.h", as these modules do not use signals. * src/atimer.c, src/callproc.c, src/data.c, src/dispnew.c, src/emacs.c: * src/floatfns.c, src/gtkutil.c, src/keyboard.c, src/process.c, src/sound.c: * src/sysdep.c, src/term.c, src/xterm.c: Do not include <signal.h>, as "syssignal.h" does that for us now. * src/atimer.c (sigmask_atimers): New function. (block_atimers, unblock_atimers): New functions, replacing the old macros BLOCK_ATIMERS and UNBLOCK_ATIMERS. All uses replaced. * src/conf_post.h [SIGNAL_H_AHB]: Do not include <signal.h>; no longer needed here. * src/emacs.c (main): Inspect existing signal handler with sigaction, so that there's no need to block and unblock SIGHUP. * src/sysdep.c (struct save_signal): New member 'action', replacing old member 'handler'. (save_signal_handlers, restore_signal_handlers): Use sigaction instead of 'signal' to save and restore. (get_set_sighandler, set_sighandler) [!WINDOWSNT]: New function. All users of 'signal' modified to use set_sighandler if they're writeonly, and to use sys_signal if they're read+write. (emacs_sigaction_init, forwarded_signal): New functions. (sys_signal): Remove. All uses replaced by calls to sigaction and emacs_sigaction_init, or by direct calls to 'signal'. (sys_sigmask) [!__GNUC__]: Remove; no longer needed. (sys_sigblock, sys_sigunblock, sys_sigsetmask): Remove; all uses replaced by pthread_sigmask etc. calls. * src/syssignal.h: Include <signal.h>. (emacs_sigaction_init, forwarded_signal): New decls. (SIGMASKTYPE): Remove. All uses replaced by its definiens, sigset_t. (SIGEMPTYMASK): Remove; all uses replaced by its definiens, empty_mask. (sigmask, sys_sigmask): Remove; no longer needed. (sigpause): Remove. All uses replaced by its definiens, sigsuspend. (sigblock, sigunblock, sigfree): (sigsetmask) [!defined sigsetmask]: Remove. All uses replaced by pthread_sigmask. (signal): Remove. Its remaining uses (with SIG_DFL and SIG_IGN) no longer need to be replaced, and its typical old uses are now done via emacs_sigaction_init and sigaction. (sys_sigblock, sys_sigunblock, sys_sigsetmask): Remove decls. (sys_sigdel): Remove; unused. (NSIG): Remove a FIXME; the code's fine. Remove an unnecessary ifdef. Fixes: debbugs:12327
* Fix race conditions with signal handlers and errno.Paul Eggert2012-09-051-21/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Be more systematic about preserving errno whenever a signal handler returns, even if it's not in the main thread. Do this by renaming signal handlers to distinguish between signal delivery and signal handling. All uses changed. * atimer.c (deliver_alarm_signal): Rename from alarm_signal_handler. * data.c (deliver_arith_signal): Rename from arith_error. * dispnew.c (deliver_window_change_signal): Rename from window_change_signal. * emacs.c (deliver_error_signal): Rename from fatal_error_signal. (deliver_danger_signal) [SIGDANGER]: Rename from memory_warning_signal. * keyboard.c (deliver_input_available_signal): Rename from input_available_signal. (deliver_user_signal): Rename from handle_user_signal. (deliver_interrupt_signal): Rename from interrupt_signal. * process.c (deliver_pipe_signal): Rename from send_process_trap. (deliver_child_signal): Rename from sigchld_handler. * atimer.c (handle_alarm_signal): * data.c (handle_arith_signal): * dispnew.c (handle_window_change_signal): * emacs.c (handle_fatal_signal, handle_danger_signal): * keyboard.c (handle_input_available_signal): * keyboard.c (handle_user_signal, handle_interrupt_signal): * process.c (handle_pipe_signal, handle_child_signal): New functions, with the actual signal-handling code taken from the original respective signal handlers, sans the sporadic attempts to preserve errno, since that's now done by handle_on_main_thread. * atimer.c (alarm_signal_handler): Remove unnecessary decl. * emacs.c, floatfns.c, lisp.h: Remove unused FLOAT_CATCH_SIGKILL cruft. * emacs.c (main_thread) [FORWARD_SIGNAL_TO_MAIN_THREAD]: Move to sysdep.c. (main) [FORWARD_SIGNAL_TO_MAIN_THREAD]: Move initialization of main_thread to sysdep.c's init_signals. * process.c (waitpid) [!WNOHANG]: #define to wait; that's good enough for our usage, and simplifies the mainline code. (record_child_status_change): New static function, as a helper for handle_child_signal, and with most of the old child handler's contents. (CAN_HANDLE_MULTIPLE_CHILDREN): New constant. (handle_child_signal): Use the above. * sysdep.c (main_thread) [FORWARD_SIGNAL_TO_MAIN_THREAD]: Moved here from emacs.c. (init_signals) [FORWARD_SIGNAL_TO_MAIN_THREAD]: Initialize it; code moved here from emacs.c's main function. * sysdep.c, syssignal.h (handle_on_main_thread): New function, replacing the old SIGNAL_THREAD_CHECK. All uses changed. This lets callers save and restore errno properly.
* Move NSIG_MINIMUM from src/s to configureGlenn Morris2012-07-121-0/+1
| | | | | | * configure.ac (NSIG_MINIMUM): Move here from src/s. * src/s/usg5-4-common.h (NSIG_MINIMUM): Let configure set it.
* Move some AIX defines from src/s to configureGlenn Morris2012-07-111-3/+1
| | | | | | | | | | * configure.ac (BROKEN_FIONREAD, BROKEN_SIGAIO, BROKEN_SIGPOLL) (BROKEN_SIGPTY): Move here from src/s. * src/s/aix4-2.h (BROKEN_FIONREAD, BROKEN_SIGAIO, BROKEN_SIGPTY) (BROKEN_SIGPOLL): Let configure set them. * src/s/syssignal.h: Comment fix.
* Switch from NO_RETURN to C11's _Noreturn.Paul Eggert2012-06-241-1/+1
| | | | Fixes: debbugs:11750
* Remove references to macros that are not defined anywhereGlenn Morris2012-04-301-10/+5
| | | | | | | * src/syssignal.h: Remove reference to BROKEN_SIGINFO (last used in s/ptx4.h), BROKEN_SIGTSTP (last used in m/ustation.h, m/dpx2.h), and BROKEN_SIGURG (was in s/gnu-linux.h prior to 2008-02-10). All were removed before 23.1.
* Add 2012 to FSF copyright years for Emacs filesGlenn Morris2012-01-051-1/+1
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* Spelling fixes.Paul Eggert2011-11-141-1/+1
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* Check for pthread and use it if found.Jan Djärv2011-08-041-1/+1
| | | | | | | | | | | * configure.in (HAVE_PTHREAD): Add check for -lpthread. (HAVE_GTK_AND_PTHREAD): Remove. * src/Makefile.in (LIB_PTHREAD): New variable. (LIBES): Add LIB_PTHREAD (Bug#9216). * src/alloc.c, src/emacs.c, src/gmalloc.c, src/gtkutil.c, src/keyboard.c, src/syssignal.h: Rename HAVE_GTK_AND_PTHREAD to HAVE_PTHREAD (Bug#9216).
* * sysdep.c (croak): Now static, ifPaul Eggert2011-04-131-0/+2
| | | | | defined TIOCNOTTY || defined USG5 || defined CYGWIN. * syssignal.h (croak): Declare only if not static.
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