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* ; Add 2023 to copyright years.Eli Zaretskii2023-01-011-1/+1
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* ; 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".
* ; * lib-src/make-fingerprint.c: Update commentary.Glenn Morris2020-11-151-3/+6
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* Update copyright year to 2020Paul Eggert2020-01-011-2/+2
| | | | Run "TZ=UTC0 admin/update-copyright $(git ls-files)".
* Update some URLsPaul Eggert2019-09-231-1/+1
| | | | | | | | | | | | | | | | | This mostly changes http: to https: in URLs. It also updates some URLs that have moved, removes some URLs that no longer work, recommends against using procmail (procmail.org no longer works), and removes some mentions of the no-longer-existing Gmane, LPF and VTW. It doesn't update all URLs, just the ones I had time for. * GNUmakefile (help): * admin/admin.el (manual-doctype-string): * admin/charsets/Makefile.in (${charsetdir}/ALTERNATIVNYJ.map): * admin/charsets/mapconv: * lisp/net/soap-client.el (soap-create-envelope): * lisp/org/org.el (org-doi-server-url): * lisp/textmodes/bibtex.el (bibtex-generate-url-list): Prefer https: to http: un URLs.
* Make fingerprint handling compatible with LTOAndreas Schwab2019-07-091-1/+2
| | | | | | | | | | Tell the compiler that the fingerprint variable is modified unpredictably. * lib/fingerprint.h (fingerprint): Remove const. * lib/fingerprint.c (fingerprint): Likewise. * src/pdumper.c (Fdump_emacs_portable): Cast fingerprint variable. (pdumper_load): Likewise. * lib-src/make-fingerprint.c (main): Likewise.
* Port new fingerprinting scheme to clang + LTOPaul Eggert2019-05-041-18/+14
| | | | | | | | | | | | | | | | * lib-src/make-fingerprint.c (main): Don't consider multiple instances of the fingerprint to be an error, as this can happen with clang and -flto. Instead, replace all instances of the fingerprint. There is a tiny chance that this will silently corrupt the Emacs executable. This patch suggests that we should go back to fingerprinting the inputs to the linker instead of its output, as the new fingerprinting scheme is unnecessarily complicated and this complexity reduces reliability. The old scheme (i.e., before commit 2019-05-14T23:31:24Z!eggert@cs.ucla.edu) was simpler and more portable and good enough, and it's looking like it would be less trouble in practice than the new scheme.
* Port make-fingerprint to LeakSanitizerPaul Eggert2019-04-201-1/+4
| | | | | * lib-src/make-fingerprint.c (buf): Now static, to pacify LeakSanitizer.
* * lib-src/make-fingerprint.c (main): Properly initialize 'prog'Philipp Stephani2019-04-181-1/+1
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* Fix make-fingerprint off-by-one bugPaul Eggert2019-04-181-12/+13
| | | | | | | Problem reported by Alex Gramiak in: https://lists.gnu.org/r/emacs-devel/2019-04/msg00784.html * lib-src/make-fingerprint.c (main): Fix recently-introduced off-by-one bug when accessing args after -r.
* Fix MS-Windows build broken by make-fingerprint changesEli Zaretskii2019-04-151-0/+5
| | | | | | | | | | | * lib-src/make-fingerprint.c (fseeko) [WNDOWSNT]: Define to fseeko64 for non-MinGW64 MinGW. * lib-src/ntlib.c (stat): Fix calculation of file size. (fstat): New function, a subset of src/w32.c:fstat. This is needed because make-fingerprint.c now calls 'fstat', and the MS version will fail to produce reliable results because nt/inc/sys/stat.h redefines 'struct stat'.
* Replace executable’s fingerprint in placePaul Eggert2019-04-141-31/+88
| | | | | | | | | | | | | | | | | | | | | | | * admin/merge-gnulib (GNULIB_MODULES): Add memmem-simple. (AVOIDED_MODULES): Add memchr. * configure.ac (HAVE_PDUMPER): AC_SUBST it, too, for use in makefiles. * lib/Makefile.in (libgnu_a_OBJECTS): Add fingerprint.o. * lib/fingerprint.c: New file. * lib/memmem.c, lib/str-two-way.h, m4/memmem.m4: New files, copied from Gnulib. * lib/fingerprint.h: Rename from src/fingerprint.h. * lib-src/make-fingerprint.c: Include limits.h, sys/stat.h, fingerprint.h, intprops.h, min-max.h. (SSIZE_MAX): New macro, if not already defined. (main): Without -r, Replace the fingerprint in the input file instead of generating a fingerprint.c. * lib/Makefile.in (libgnu_a_OBJECTS): Add fingerprint.o. * lib/gnulib.mk.in, m4/gnulib-comp.m4: Regenerate. * src/Makefile.in (HAVE_PDUMPER, MAKE_PDUMPER_FINGERPRINT): New macros. (temacs$(EXEEXT)): Use them to replace the fingerprint instead of precalculating it. (mostlyclean, ctagsfiles1): Do not worry about fingerprint.c.
* Remove the need for temacs.inPaul Eggert2019-04-091-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of building a file temacs.in used only to compute a fingerprint, compute the fingerprint directly from the .o and .a files that go into temacs.in. This speeds up the build by avoiding the need to link temacs twice, once with a dummy fingerprint. * lib-src/make-fingerprint.c (main): No need to generate a fingerprint file that includes config.h, now that fingerprint.c depends on all the .o files. * src/Makefile.in ($(libsrc)/make-fingerprint$(EXEEXT)): Use the same rule as $(libsrc)/make-docfile$(EXEEXT). * src/fingerprint-dummy.c: Remove. * src/Makefile.in (${charsets}, $(libsrc)/make-docfile$(EXEEXT)) ($(LIBEGNU_ARCHIVE), $(lwlibdir)/liblw.a, $(oldXMenudir)/libXMenu11.a) (../config.status, ${ETAGS}, ../lisp/TAGS, $(lwlibdir)/TAGS) ($(lispsource)/loaddefs.el): Prefer ‘$(MAKE) -C $(dir $@)’ to ‘${MAKE} -C SOMESTRING’ when either will do, as the former is more regular and lets us coalesce rules better. (EMACS_DEPS_PRE, EMACS_DEPS_POST, BUILD_EMACS_PRE) (BUILD_EMACS_POST, temacs.in$(EXEEXT)): Remove. (FINGERPRINTED): New macro. (fingerprint.c): Use it instead of temacs.in$(EXEEXT), to avoid the need to build temacs.in at all. (temacs$(EXEEXT)): No need to depend on other .o files now; fingerprint.o is enough, since it depends on the rest. Spell out what used to be in BUILD_EMACS_PRE and BUILD_EMACS_POST. (mostlyclean): No need to remove temacs.in.
* Remove assumption of uint64_t etc. in portable codePaul Eggert2019-04-091-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | C11 doesn’t guarantee the existence of types like uint64_t, so avoid these types in portable code, as it’s easy to do so. There’s no need to avoid the types in w32-specific code, since w32 is guaranteed to have them. * lib-src/make-fingerprint.c (main): * src/fingerprint-dummy.c: * src/fingerprint.h: * src/pdumper.c (dump_fingerprint, struct dump_header): Prefer unsigned char to uint8_t in portable code, as either will do. Put an "#include <config.h>" in fingerprint.c files, so that the corresponding .o file is rebuilt after ./configure is run. * lib-src/make-fingerprint.c (main): Simplify loop. * src/Makefile.in (fingerprint.c): Update atomically. * src/pdumper.c: Omit unnecessary check that off_t is the same size as int32_t or int64_t, as the code does not rely on this assumption. (dump_off): Use int_least32_t, not int32_t. (struct dump_reloc): Use unsigned int, not uint32_t. (dump_anonymous_allocate_w32, dump_anonymous_allocate_posix) (dump_anonymous_allocate, dump_map_file_w32, dump_map_file_posix) (dump_map_file: Do the sanity checks at compile time, not at run-time, to avoid usage of uint64_t etc. on non-w32 platforms.
* ; Copyright fixes for pdumper filesGlenn Morris2019-01-161-2/+2
| | | | I wonder if the copyright years for lib-src/make-fingerprint.c are correct.
* Add portable dumperDaniel Colascione2019-01-151-0/+113
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.