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* * lib-src/seccomp-filter.c: Add missing headers.Philipp Stephani2021-04-121-0/+2
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* Generate Seccomp filters only if we have the necessary constants.Philipp Stephani2021-04-121-0/+3
| | | | | | | | | | If we're missing SECCOMP_SET_MODE_FILTER, the seccomp-filter build fails. Reuse the existing HAVE_SECCOMP configuration variable, which checks for these macros. * configure.ac (HAVE_SECCOMP): Substitute in Makefile.in. * lib-src/Makefile.in (HAVE_SECCOMP): New variable. (SECCOMP_FILTER): Define only if HAVE_SECCOMP.
* Add a variant of the Seccomp filter file that allows 'execve'.Philipp Stephani2021-04-112-7/+39
| | | | | | | | | | | | | | | | This is useful when starting Emacs with a Seccomp filter enabled, e.g. using 'bwrap'. * lib-src/seccomp-filter.c (main): Generate new Seccomp files. * lib-src/Makefile.in (all) (seccomp-filter.bpf seccomp-filter.pfc seccomp-filter-exec.bpf seccomp-filter-exec.pfc): Generate new Seccomp files. * .gitignore: Ignore new Seccomp files. * test/src/emacs-tests.el (emacs-tests/bwrap/allows-stdout): New unit test.
* * lib-src/seccomp-filter.c (main): Also allow O_NOFOLLOW.Philipp Stephani2021-04-111-2/+2
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* Don't attempt to generate Seccomp filter file in Linux < 4.14.Philipp Stephani2021-04-111-0/+6
| | | | | | | | Only Linux 4.14 and later contain the required support for SECCOMP_RET_KILL_PROCESS. * lib-src/Makefile.in (SECCOMP_FILTER): Define only if we run at least Linux 4.14.
* Seccomp filter: allow reading the current time (Bug#47708).Philipp Stephani2021-04-111-0/+7
| | | | * lib-src/seccomp-filter.c (main): Allow reading the current time.
* Use pkg-config to check for libseccomp.Philipp Stephani2021-04-111-3/+6
| | | | | | | | | | We need at list version 2.4.0 of libseccomp for seccomp-filter.c to build cleanly. * configure.ac: Use pkg-config to check for libseccomp. * lib-src/Makefile.in (HAVE_LIBSECCOMP, LIBSECCOMP_LIBS) (LIBSECCOMP_CFLAGS): New variables. (SECCOMP_FILTER, seccomp-filter$(EXEEXT)): Use them.
* Remove SCMP_FLTATR_CTL_LOG attribute from Seccomp filter.Philipp Stephani2021-04-111-1/+0
| | | | | | | Whether or not we log failing syscalls isn't security-critical, and we shouldn't care. * lib-src/seccomp-filter.c (main): Remove log attribute.
* Only attempt to generate seccomp filter files on x86-64 systems.Philipp Stephani2021-04-111-2/+9
| | | | | | | | The seccomp filters are always architecture-specific, and seccomp-filter.c right now only supports x86-64. * lib-src/Makefile.in (SECCOMP_FILTER): New variable. (DONT_INSTALL, all, seccomp-filter$(EXEEXT)): Use it.
* * lib-src/seccomp-filter.c: Print trailing newline.Philipp Stephani2021-04-111-1/+4
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* ; Fix copyright yearsGlenn Morris2021-04-101-1/+1
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* Add a helper binary to create a basic Secure Computing filter.Philipp Stephani2021-04-102-0/+340
| | | | | | | | | | | | | | | | | | | | | | The binary uses the 'seccomp' helper library. The library isn't needed to load the generated Secure Computing filter. * configure.ac: Check for 'seccomp' header and library. * lib-src/seccomp-filter.c: New helper binary to generate a generic Secure Computing filter for GNU/Linux. * lib-src/Makefile.in (DONT_INSTALL): Add 'seccomp-filter' helper binary if possible. (all): Add Secure Computing filter file if possible. (seccomp-filter$(EXEEXT)): Compile helper binary. (seccomp-filter.bpf seccomp-filter.pfc): Generate filter files. * test/src/emacs-tests.el (emacs-tests/seccomp/allows-stdout) (emacs-tests/seccomp/forbids-subprocess): New unit tests. * test/Makefile.in (src/emacs-tests.log): Add dependency on the helper binary.
* Simplify silent-rules build machineryGlenn Morris2021-03-061-27/+2
| | | | | | | | | | | | | | * src/verbose.mk.in: New file. * configure.ac (AM_V, AM_DEFAULT_V): Remove output variables. (src/verbose.mk): New output file. * Makefile.in, admin/charsets/Makefile.in: * admin/grammars/Makefile.in, admin/unidata/Makefile.in: * doc/emacs/Makefile.in, doc/lispintro/Makefile.in: * doc/lispref/Makefile.in, doc/misc/Makefile.in, leim/Makefile.in: * lib-src/Makefile.in, lib/Makefile.in, lisp/Makefile.in: * lwlib/Makefile.in, nt/Makefile.in, oldXMenu/Makefile.in: * src/Makefile.in, src/verbose.mk.in, test/Makefile.in: Include src/verbose.mk rather than repeatedly defining AM_V_at etc.
* Port to Solaris 10Paul Eggert2021-01-011-2/+7
| | | | | | | | | | | | | | | | | | | | | | * configure.ac: Instead of AC_CHECK_HEADER, use AC_COMPILE_IFELSE with X11/Intrinsic.h when checking for X11/extensions/Xrender.h. This suppresses a bogus "report a bug to bug-gnu-emacs" diagnostic from 'configure' in Solaris 10. (SETUP_SLAVE_PTY): Adjust to recent renaming of forkin to std_in in callproc.c. Needed on Solaris and Unixware. * lib-src/Makefile.in (LIB_GETRANDOM, LIBS_ETAGS): New vars, needed because on Solaris 10 the Gnulib tempname module now needs the -lrt library for clock_gettime. Throw in the LIB_GETRANDOM stuff too while we’re at it; from getrandom.m4 it seems to be needed for MingW. (LIBS_MOVE, etags_libs): Use them. * src/callproc.c [SETUP_SLAVE_PTY]: Include sys/stream.h and sys/stropts.h, for SETUP_SLAVE_PTY’s definiens. * src/process.c [NEED_BSDTTY]: Don’t include bsdtty.h; hasn’t been needed in years. [USG5_4]: Don’t include sys/stream.h or sys/stropts.h; these directives havbe been moved to callproc.c because the only use of SETUP_SLAVE_PTY is there now.
* Merge from origin/emacs-27Paul Eggert2021-01-011-1/+1
|\ | | | | | | 33d159c36f Fix copyright years by hand
| * Fix copyright years by handPaul Eggert2021-01-011-1/+1
| | | | | | | | These are dates that admin/update-copyright did not update.
| * Update copyright year to 2021Paul Eggert2021-01-0115-15/+15
| | | | | | | | Run "TZ=UTC0 admin/update-copyright $(git ls-files)".
| * Fix crash (segfault) in etags on generating tags for Erlang filesSerge Tupchii2020-12-091-0/+1
| | | | | | | | | | | | | | | | | | | | * lib-src/etags.c: Set allocated and lastlen to zero, after freeing last ptr in Erlang_functions to prevent dereferencing NULL pointer (bug#45122). Copyright-paperwork-exempt: yes (cherry picked from commit 2d8f0364fcd1d5dad2b82dd3a9af870b03854547)
* | Update copyright year to 2021Paul Eggert2021-01-0115-15/+15
| | | | | | | | Run "TZ=UTC0 admin/update-copyright".
* | Adjust to recent Gnulib changesPaul Eggert2020-12-253-43/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The latest Gnulib merge brought in free-posix, which causes 'free' to preserve errno. This lets us simplify some Emacs code that calls 'free'. * admin/merge-gnulib (GNULIB_MODULES): Add free-posix. This module is pulled in by canonicalize-lgpl anyway, so we might as well rely on it. * lib-src/emacsclient.c (get_current_dir_name): Sync better with src/sysdep.c. * lib-src/etags.c (process_file_name, etags_mktmp): * lib-src/update-game-score.c (unlock_file): * src/fileio.c (file_accessible_directory_p): * src/sysdep.c (get_current_dir_name_or_unreachable): Simplify by assuming that 'free' preserves errno. * src/alloc.c (malloc_unblock_input): Preserve errno, so that xfree preserves errno. * src/sysdep.c (get_current_dir_name_or_unreachable): Simplify by using strdup instead of malloc+memcpy. No need for realloc (and the old code leaked memory anyway on failure); just use free+malloc.
* | Fix crash (segfault) in etags on generating tags for Erlang filesSerge Tupchii2020-12-081-0/+1
| | | | | | | | | | | | | | * lib-src/etags.c: Set allocated and lastlen to zero, after freeing last ptr in Erlang_functions to prevent dereferencing NULL pointer (bug#45122). Copyright-paperwork-exempt: yes
* | Merge from origin/emacs-27Glenn Morris2020-11-162-23/+22
|\ \ | |/ | | | | | | | | | | | | | | | | | | | | | | 75723ec212 (origin/emacs-27) ; * lisp/emacs-lisp/benchmark.el (benchm... 53e2a612ad ; * lib-src/make-fingerprint.c: Update commentary. 286c632772 Reformat argument commentary in etags.c 4ec740866a Make the invocation of combine-change-calls in comment-reg... 66bcec8838 * lisp/progmodes/cc-langs.el (c-<>-notable-chars-re): Fix ... 03eeab469e ; Update the expected result files in test/manual/etags. d875a22bc6 Update the various INSTALL files # Conflicts: # INSTALL
| * ; * lib-src/make-fingerprint.c: Update commentary.Glenn Morris2020-11-151-3/+6
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| * Reformat argument commentary in etags.cEli Zaretskii2020-11-151-20/+16
| | | | | | | | | | * lib-src/etags.c (pfnote, consider_token, C_entries): Resurrect original format of comments to function arguments.
| * ; Fix more trivial typosStefan Kangas2020-09-211-1/+1
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* | Mark the return value from strerror as a constantPhilipp Klaus Krause2020-10-141-1/+1
| | | | | | | | | | | | | | | | | | * src/emacs.c (main): Mark the return from strerror as a constant, since it shouldn't be changed (bug#43982). * lib-src/movemail.c (pfatal_and_delete): Ditto. Copyright-paperwork-exempt: yes
* | ; Fix trivial typos in ChangeLogsStefan Kangas2020-10-031-4/+4
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* | ; Fix typosStefan Kangas2020-09-211-1/+1
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* | Don't output emacsclient warning if both -a and --quietLars Ingebrigtsen2020-08-131-5/+11
| | | | | | | | | | | | * lib-src/emacsclient.c (set_local_socket): Don't output the warning if both -a and --quiet are specified (bug#16117). Inspired by a patch from Scott Turner <srt19170@gmail.com>.
* | Merge from origin/emacs-27Glenn Morris2020-05-281-2/+5
|\ \ | |/ | | | | | | | | | | e7a3ed8a6d Fix tab-bar-tab-name-ellipsis initialization 4737d0af75 Fix Elisp manual entry for format-spec 0195809bb6 Fix rare assertion violations in 'etags' cddb0079ff ; * lisp/format-spec.el (format-spec): Fix typo.
| * Fix rare assertion violations in 'etags'Eli Zaretskii2020-05-241-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | * lib-src/etags.c (pfnote): Instead of raising an assertion when we get an empty tag name, return immediately. (Bug#41465) * test/manual/etags/ETAGS.good_1: * test/manual/etags/ETAGS.good_2: * test/manual/etags/ETAGS.good_3: * test/manual/etags/ETAGS.good_4: * test/manual/etags/ETAGS.good_5: * test/manual/etags/ETAGS.good_6: Adapt to latest changes in etags.
* | Port etags FALLTHROUGH to C2XPaul Eggert2020-05-231-1/+1
| | | | | | | | | | | | | | Problem reported by Ashish SHUKLA in: https://lists.gnu.org/r/emacs-devel/2020-05/msg03013.html * lib-src/etags.c (C_entries): Move label so that FALLTHROUGH precedes a case label, as draft C2X specifies.
* | * lib-src/Makefile.in (LINK_CFLAGS): Remove; unused.Paul Eggert2020-04-041-2/+0
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* | Stop using newly-deprecated dosname Gnulib modulePaul Eggert2020-03-281-1/+1
| | | | | | | | | | | | | | | | | | Code is supposed to use the filename module now. * admin/merge-gnulib (GNULIB_MODULES): Replace dosname with filename. * lib/dosname.h: Remove this forwarding stub. * lib/gnulib.mk.in, m4/gnulib-comp.m4: Regenerate. * lib-src/emacsclient.c, src/fileio.c: Include filename.h instead of dosname.h.
* | Pacify GCC 9.2.1 20190927 -O3Paul Eggert2020-03-041-0/+5
|/ | | | | | | | | | | | | | | | | | | | | | | | Original problem report by N. Jackson in: https://lists.gnu.org/r/emacs-devel/2020-03/msg00047.html I found some other warnings when I used gcc, and fixed them with this patch. * lib-src/etags.c: Include verify.h. (xnmalloc, xnrealloc): Tell the compiler that NITEMS is nononnegative and ITEM_SIZE is positive. * src/conf_post.h (__has_attribute_returns_nonnull) (ATTRIBUTE_RETURNS_NONNULL): New macros. * src/editfns.c (Fuser_full_name): Don’t assume Fuser_login_name returns non-nil. * src/intervals.c (rotate_right, rotate_left, update_interval): * src/intervals.h (LENGTH, LEFT_TOTAL_LENGTH, RIGHT_TOTAL_LENGTH): Use TOTAL_LENGTH0 or equivalent on intervals that might be null. * src/intervals.h (TOTAL_LENGTH): Assume arg is nonnull. (TOTAL_LENGTH0): New macro, with the old TOTAL_LENGTH meaning. (make_interval, split_interval_right): Add ATTRIBUTE_RETURNS_NONNULL. * src/pdumper.c (dump_check_dump_off): Now returns void, since no caller uses the return value. Redo assert to pacify GCC. (decode_emacs_reloc): Add a seemingly-random eassume to pacify GCC. Ugly, and I suspect due to a bug in GCC.
* Make emacs prefer an existing ~/.emacs.d to an existing XDG locationRobert Pluim2020-01-161-8/+9
| | | | | | | | | | | | | | | * doc/emacs/custom.texi (Find Init): Update description of how Emacs finds its init file directory and the interaction with $XDG_CONFIG_HOME (Early Init File): Correct XDG location of early-init.el * etc/NEWS: Update description to make it clear the ~/.emacs.d is preferred, even if the XDG location exists. * lisp/startup.el: Prefer ~/.emacs.d even if the XDG location exists. * lib-src/emacsclient.c (open_config): Prefer home directory the XDG location.
* Fix copyright years by handPaul Eggert2020-01-011-1/+1
| | | | These are dates that admin/update-copyright did not update.
* Update copyright year to 2020Paul Eggert2020-01-0115-16/+16
| | | | Run "TZ=UTC0 admin/update-copyright $(git ls-files)".
* Prefer static to extern in ebrowsePaul Eggert2019-12-091-42/+42
| | | | | | | | | | | | | | | * lib-src/ebrowse.c (info_where, info_cls, info_member) (info_position, options, yyival, yytext, yytext_end, yyout) (yyline, filename, is_ident, is_digit, is_white, f_append) (f_verbose, f_very_verbose, f_structs, f_regexps) (f_nested_classes, min_regexp, max_regexp, inbuffer, in) (inbuffer_size, string_start, class_table, member_table) (namespace_alias_table, global_symbols, current_namespace) (all_namespaces, namespace_stack, namespace_stack_size) (namespace_sp, tk, keyword_table, search_path) (search_path_tail, scope_buffer, scope_buffer_size) (scope_buffer_len): Now static. (options): Now const.
* * lib-src/etags.c (pot_etags_version): Remove; unused.Paul Eggert2019-12-091-2/+0
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* * lib-src/etags.c (Forth_suffixes): Now static.Paul Eggert2019-12-091-1/+1
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* etags: remove some arbitrary limitsPaul Eggert2019-11-261-193/+211
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | etags had undefined behavior if input files, lines, tags, etc., had more than INT_MAX bytes. Clean up the usage of integer types to fix the overflow errors I found. * admin/merge-gnulib (GNULIB_MODULES): Add mempcpy. * lib-src/etags.c: Include inttypes.h, intprops.h. (memcpyz): New function. Use it to simplify several occurrences of memcpy followed by storing a trailing '\0'. (xnew): Use xnmalloc, to catch overflow on integer multiplication. (xrnew): Change last arg to multiplier. The type is not needed. All callers changed. (node, lineno, charno, linecharno, invalidcharno, make_tag): (pfnote, add_node, number_len, C_symtype, lbz, Makefile_targets) (readline): Use intmax_t for line numbers and character positions, instead of int or long. (linebuffer, make_tag, pfnote, total_size_of_entries, put_entry) (in_word_set, C_symtype, token, cstack, pushclass_above): (popclass_above, write_classname, consider_token, C_entries) (Ruby_functions, Makefile_targets, Lua_functions, TeX_commands) (TeX_decode_env, erlang_func, erlang_attribute, erlang_atom) (substitute, regex_tag_multiline, nocase_tail, readline_interval) (readline, savenstr, concat, etags_getcwd, relative_filename) (linebuffer_setlen): Use ptrdiff_t for object sizes, instead of int or long or unsigned or size_t. (write_classname, C_entries): Avoid sprintf, as the result could exceed INT_MAX bytes and then behavior goes haywire. (main): Use int, instead of unsigned, for argv counts. (get_language_from_filename): Use bool for boolean. (Ruby_functions): Prefer strcpy to memcpy when copying "=". (linebuffer_setlen): Use ‘if’ instead of ‘while’. (memory_full, xnmalloc, xnrealloc): New functions. (xmalloc): Use memory_full, and take a ptrdiff_t instead of a size_t. (xrealloc): Remove; no longer needed. * lib/gnulib.mk.in, m4/gnulib-comp.m4: Regenerate. * lib/mempcpy.c, m4/mempcpy.m4: New files, copied from Gnulib.
* 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.
* Revert "emacsclient: ignore --eval parameters when starting alternate editor"Lars Ingebrigtsen2019-09-151-5/+1
| | | | | | This reverts commit 6fe661342a24edcaea255c3ba9a37613031554da. The alternate editor may be Emacs, which is useful when you want to eval something in an existing Emacs (if it exists), or in a new Emacs if there's no server running.
* Check instead of relying on NOTREACHEDPaul Eggert2019-08-312-9/+5
| | | | | | | | | | | | | | | | NOTREACHED was designed for traditional lint decades ago, and _Noreturn now normally subsumes its function. In the one case in Emacs where NORETURN might help and _Noreturn does not, check for NOTREACHED instead of assuming it. * lib-src/etags.c (main): * src/xterm.c (x_connection_closed): Remove NOTREACHED after a call to a _Noreturn function, as NOTREACHED is no longer needed there. Also, one of the NOTREACHEDs was misplaced, which defeated traditional lint checking anyway. * lib-src/pop.c (pop_getline): Redo so as to not need NOTREACHED. * src/emacs.c (main): Use eassume (false) rather than NOTREACHED, so that running with ENABLE_CHECKING catches any internal error causing the toplevel Frecursive_edit to return.
* emacsclient: adjust to new config file locationPaul Eggert2019-08-301-15/+32
| | | | | | | * lib-src/emacsclient.c (open_config): New arg XDG, to respect XDG_CONFIG_HOME, consistently with Emacs proper. Caller changed. Use XDG convention if available, falling back on the old names if not.
* * lib-src/make-docfile.c: Fix comment typo.Paul Eggert2019-07-121-1/+1
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* Tweak builtin symbol order for speedPaul Eggert2019-07-111-5/+16
| | | | | | | | * lib-src/make-docfile.c (compare_globals): Make symbols 1 through 4 be t, unbound, error, lambda. This is in addition to symbol 0 being nil. This change improved ‘make compile-always’ performance by 0.6% on my platform.
* 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.
* emacsclient: ignore --eval parameters when starting alternate editorLars Ingebrigtsen2019-06-271-1/+5
| | | | | | * lib-src/emacsclient.c (fail): If the user said --eval, don't pass those arguments to the alternate editor as file names. Suggested by a patch from Scott Turner (bug#11474).
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