| 1 | /* Fully extensible Emacs, running on Unix, intended for GNU. |
| 2 | |
| 3 | Copyright (C) 1985-1987, 1993-1995, 1997-1999, 2001-2011 |
| 4 | Free Software Foundation, Inc. |
| 5 | |
| 6 | This file is part of GNU Emacs. |
| 7 | |
| 8 | GNU Emacs is free software: you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation, either version 3 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | GNU Emacs is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 20 | |
| 21 | |
| 22 | #include <config.h> |
| 23 | #include <signal.h> |
| 24 | #include <errno.h> |
| 25 | #include <stdio.h> |
| 26 | |
| 27 | #include <sys/types.h> |
| 28 | #include <sys/file.h> |
| 29 | #include <setjmp.h> |
| 30 | #include <unistd.h> |
| 31 | |
| 32 | #ifdef WINDOWSNT |
| 33 | #include <fcntl.h> |
| 34 | #include <windows.h> /* just for w32.h */ |
| 35 | #include "w32.h" |
| 36 | #include "w32heap.h" /* for prototype of sbrk */ |
| 37 | #endif |
| 38 | |
| 39 | #ifdef NS_IMPL_GNUSTEP |
| 40 | /* At least under Debian, GSConfig is in a subdirectory. --Stef */ |
| 41 | #include <GNUstepBase/GSConfig.h> |
| 42 | #endif |
| 43 | |
| 44 | #include "lisp.h" |
| 45 | #include "commands.h" |
| 46 | #include "intervals.h" |
| 47 | #include "buffer.h" |
| 48 | #include "window.h" |
| 49 | |
| 50 | #include "systty.h" |
| 51 | #include "blockinput.h" |
| 52 | #include "syssignal.h" |
| 53 | #include "process.h" |
| 54 | #include "frame.h" |
| 55 | #include "termhooks.h" |
| 56 | #include "keyboard.h" |
| 57 | #include "keymap.h" |
| 58 | |
| 59 | #ifdef HAVE_GNUTLS |
| 60 | #include "gnutls.h" |
| 61 | #endif |
| 62 | |
| 63 | #ifdef HAVE_NS |
| 64 | #include "nsterm.h" |
| 65 | #endif |
| 66 | |
| 67 | #ifdef HAVE_SETLOCALE |
| 68 | #include <locale.h> |
| 69 | #endif |
| 70 | |
| 71 | #ifdef HAVE_SETRLIMIT |
| 72 | #include <sys/time.h> |
| 73 | #include <sys/resource.h> |
| 74 | #endif |
| 75 | |
| 76 | #ifdef HAVE_PERSONALITY_LINUX32 |
| 77 | #include <sys/personality.h> |
| 78 | #endif |
| 79 | |
| 80 | #ifndef O_RDWR |
| 81 | #define O_RDWR 2 |
| 82 | #endif |
| 83 | |
| 84 | #ifdef HAVE_SETPGID |
| 85 | #if !defined (USG) |
| 86 | #undef setpgrp |
| 87 | #define setpgrp setpgid |
| 88 | #endif |
| 89 | #endif |
| 90 | |
| 91 | static const char emacs_version[] = VERSION; |
| 92 | static const char emacs_copyright[] = "Copyright (C) 2011 Free Software Foundation, Inc."; |
| 93 | |
| 94 | /* Make these values available in GDB, which doesn't see macros. */ |
| 95 | |
| 96 | #ifdef USE_LSB_TAG |
| 97 | int gdb_use_lsb EXTERNALLY_VISIBLE = 1; |
| 98 | #else |
| 99 | int gdb_use_lsb EXTERNALLY_VISIBLE = 0; |
| 100 | #endif |
| 101 | #ifndef USE_LISP_UNION_TYPE |
| 102 | int gdb_use_union EXTERNALLY_VISIBLE = 0; |
| 103 | #else |
| 104 | int gdb_use_union EXTERNALLY_VISIBLE = 1; |
| 105 | #endif |
| 106 | EMACS_INT gdb_valbits EXTERNALLY_VISIBLE = VALBITS; |
| 107 | EMACS_INT gdb_gctypebits EXTERNALLY_VISIBLE = GCTYPEBITS; |
| 108 | #if defined (DATA_SEG_BITS) && ! defined (USE_LSB_TAG) |
| 109 | EMACS_INT gdb_data_seg_bits EXTERNALLY_VISIBLE = DATA_SEG_BITS; |
| 110 | #else |
| 111 | EMACS_INT gdb_data_seg_bits EXTERNALLY_VISIBLE = 0; |
| 112 | #endif |
| 113 | EMACS_INT PVEC_FLAG EXTERNALLY_VISIBLE = PSEUDOVECTOR_FLAG; |
| 114 | EMACS_INT gdb_array_mark_flag EXTERNALLY_VISIBLE = ARRAY_MARK_FLAG; |
| 115 | /* GDB might say "No enum type named pvec_type" if we don't have at |
| 116 | least one symbol with that type, and then xbacktrace could fail. */ |
| 117 | enum pvec_type gdb_pvec_type EXTERNALLY_VISIBLE = PVEC_TYPE_MASK; |
| 118 | |
| 119 | /* Empty lisp strings. To avoid having to build any others. */ |
| 120 | Lisp_Object empty_unibyte_string, empty_multibyte_string; |
| 121 | |
| 122 | /* Set nonzero after Emacs has started up the first time. |
| 123 | Prevents reinitialization of the Lisp world and keymaps |
| 124 | on subsequent starts. */ |
| 125 | int initialized; |
| 126 | |
| 127 | #ifdef DOUG_LEA_MALLOC |
| 128 | /* Preserves a pointer to the memory allocated that copies that |
| 129 | static data inside glibc's malloc. */ |
| 130 | static void *malloc_state_ptr; |
| 131 | /* From glibc, a routine that returns a copy of the malloc internal state. */ |
| 132 | extern void *malloc_get_state (void); |
| 133 | /* From glibc, a routine that overwrites the malloc internal state. */ |
| 134 | extern int malloc_set_state (void*); |
| 135 | /* Non-zero if the MALLOC_CHECK_ environment variable was set while |
| 136 | dumping. Used to work around a bug in glibc's malloc. */ |
| 137 | static int malloc_using_checking; |
| 138 | #endif |
| 139 | |
| 140 | Lisp_Object Qfile_name_handler_alist; |
| 141 | |
| 142 | Lisp_Object Qrisky_local_variable; |
| 143 | |
| 144 | /* If non-zero, Emacs should not attempt to use a window-specific code, |
| 145 | but instead should use the virtual terminal under which it was started. */ |
| 146 | int inhibit_window_system; |
| 147 | |
| 148 | /* If non-zero, a filter or a sentinel is running. Tested to save the match |
| 149 | data on the first attempt to change it inside asynchronous code. */ |
| 150 | int running_asynch_code; |
| 151 | |
| 152 | #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS) |
| 153 | /* If non-zero, -d was specified, meaning we're using some window system. */ |
| 154 | int display_arg; |
| 155 | #endif |
| 156 | |
| 157 | /* An address near the bottom of the stack. |
| 158 | Tells GC how to save a copy of the stack. */ |
| 159 | char *stack_bottom; |
| 160 | |
| 161 | /* The address where the heap starts (from the first sbrk (0) call). */ |
| 162 | static void *my_heap_start; |
| 163 | |
| 164 | /* The gap between BSS end and heap start as far as we can tell. */ |
| 165 | static unsigned long heap_bss_diff; |
| 166 | |
| 167 | /* If the gap between BSS end and heap start is larger than this |
| 168 | output a warning in dump-emacs. */ |
| 169 | #define MAX_HEAP_BSS_DIFF (1024*1024) |
| 170 | |
| 171 | /* Nonzero means running Emacs without interactive terminal. */ |
| 172 | int noninteractive; |
| 173 | |
| 174 | /* Nonzero means remove site-lisp directories from load-path. */ |
| 175 | int no_site_lisp; |
| 176 | |
| 177 | /* Name for the server started by the daemon.*/ |
| 178 | static char *daemon_name; |
| 179 | |
| 180 | /* Pipe used to send exit notification to the daemon parent at |
| 181 | startup. */ |
| 182 | int daemon_pipe[2]; |
| 183 | |
| 184 | /* Save argv and argc. */ |
| 185 | char **initial_argv; |
| 186 | int initial_argc; |
| 187 | |
| 188 | static void sort_args (int argc, char **argv); |
| 189 | static void syms_of_emacs (void); |
| 190 | |
| 191 | /* MSVC needs each string be shorter than 2048 bytes, so the usage |
| 192 | strings below are split to not overflow this limit. */ |
| 193 | #define USAGE1 "\ |
| 194 | Usage: %s [OPTION-OR-FILENAME]...\n\ |
| 195 | \n\ |
| 196 | Run Emacs, the extensible, customizable, self-documenting real-time\n\ |
| 197 | display editor. The recommended way to start Emacs for normal editing\n\ |
| 198 | is with no options at all.\n\ |
| 199 | \n\ |
| 200 | Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\ |
| 201 | read the main documentation for these command-line arguments.\n\ |
| 202 | \n\ |
| 203 | Initialization options:\n\ |
| 204 | \n\ |
| 205 | --batch do not do interactive display; implies -q\n\ |
| 206 | --chdir DIR change to directory DIR\n\ |
| 207 | --daemon start a server in the background\n\ |
| 208 | --debug-init enable Emacs Lisp debugger for init file\n\ |
| 209 | --display, -d DISPLAY use X server DISPLAY\n\ |
| 210 | --no-desktop do not load a saved desktop\n\ |
| 211 | --no-init-file, -q load neither ~/.emacs nor default.el\n\ |
| 212 | --no-shared-memory, -nl do not use shared memory\n\ |
| 213 | --no-site-file do not load site-start.el\n\ |
| 214 | --no-site-lisp, -nsl do not add site-lisp directories to load-path\n\ |
| 215 | --no-splash do not display a splash screen on startup\n\ |
| 216 | --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\ |
| 217 | --quick, -Q equivalent to:\n\ |
| 218 | -q --no-site-file --no-site-lisp --no-splash\n\ |
| 219 | --script FILE run FILE as an Emacs Lisp script\n\ |
| 220 | --terminal, -t DEVICE use DEVICE for terminal I/O\n\ |
| 221 | --user, -u USER load ~USER/.emacs instead of your own\n\ |
| 222 | \n%s" |
| 223 | |
| 224 | #define USAGE2 "\ |
| 225 | Action options:\n\ |
| 226 | \n\ |
| 227 | FILE visit FILE using find-file\n\ |
| 228 | +LINE go to line LINE in next FILE\n\ |
| 229 | +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\ |
| 230 | --directory, -L DIR add DIR to variable load-path\n\ |
| 231 | --eval EXPR evaluate Emacs Lisp expression EXPR\n\ |
| 232 | --execute EXPR evaluate Emacs Lisp expression EXPR\n\ |
| 233 | --file FILE visit FILE using find-file\n\ |
| 234 | --find-file FILE visit FILE using find-file\n\ |
| 235 | --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\ |
| 236 | --insert FILE insert contents of FILE into current buffer\n\ |
| 237 | --kill exit without asking for confirmation\n\ |
| 238 | --load, -l FILE load Emacs Lisp FILE using the load function\n\ |
| 239 | --visit FILE visit FILE using find-file\n\ |
| 240 | \n" |
| 241 | |
| 242 | #define USAGE3 "\ |
| 243 | Display options:\n\ |
| 244 | \n\ |
| 245 | --background-color, -bg COLOR window background color\n\ |
| 246 | --basic-display, -D disable many display features;\n\ |
| 247 | used for debugging Emacs\n\ |
| 248 | --border-color, -bd COLOR main border color\n\ |
| 249 | --border-width, -bw WIDTH width of main border\n\ |
| 250 | --color, --color=MODE override color mode for character terminals;\n\ |
| 251 | MODE defaults to `auto', and\n\ |
| 252 | can also be `never', `always',\n\ |
| 253 | or a mode name like `ansi8'\n\ |
| 254 | --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\ |
| 255 | --font, -fn FONT default font; must be fixed-width\n\ |
| 256 | --foreground-color, -fg COLOR window foreground color\n\ |
| 257 | --fullheight, -fh make the first frame high as the screen\n\ |
| 258 | --fullscreen, -fs make the first frame fullscreen\n\ |
| 259 | --fullwidth, -fw make the first frame wide as the screen\n\ |
| 260 | --maximized, -mm make the first frame maximized\n\ |
| 261 | --geometry, -g GEOMETRY window geometry\n\ |
| 262 | --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\ |
| 263 | --iconic start Emacs in iconified state\n\ |
| 264 | --internal-border, -ib WIDTH width between text and main border\n\ |
| 265 | --line-spacing, -lsp PIXELS additional space to put between lines\n\ |
| 266 | --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\ |
| 267 | --name NAME title for initial Emacs frame\n\ |
| 268 | --no-blinking-cursor, -nbc disable blinking cursor\n\ |
| 269 | --reverse-video, -r, -rv switch foreground and background\n\ |
| 270 | --title, -T TITLE title for initial Emacs frame\n\ |
| 271 | --vertical-scroll-bars, -vb enable vertical scroll bars\n\ |
| 272 | --xrm XRESOURCES set additional X resources\n\ |
| 273 | --parent-id XID set parent window\n\ |
| 274 | --help display this help and exit\n\ |
| 275 | --version output version information and exit\n\ |
| 276 | \n" |
| 277 | |
| 278 | #define USAGE4 "\ |
| 279 | You can generally also specify long option names with a single -; for\n\ |
| 280 | example, -batch as well as --batch. You can use any unambiguous\n\ |
| 281 | abbreviation for a --option.\n\ |
| 282 | \n\ |
| 283 | Various environment variables and window system resources also affect\n\ |
| 284 | Emacs' operation. See the main documentation.\n\ |
| 285 | \n\ |
| 286 | Report bugs to bug-gnu-emacs@gnu.org. First, please see the Bugs\n\ |
| 287 | section of the Emacs manual or the file BUGS.\n" |
| 288 | |
| 289 | \f |
| 290 | /* Signal code for the fatal signal that was received. */ |
| 291 | static int fatal_error_code; |
| 292 | |
| 293 | /* Nonzero if handling a fatal error already. */ |
| 294 | int fatal_error_in_progress; |
| 295 | |
| 296 | /* If non-null, call this function from fatal_error_signal before |
| 297 | committing suicide. */ |
| 298 | |
| 299 | static void (*fatal_error_signal_hook) (void); |
| 300 | |
| 301 | #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD |
| 302 | /* When compiled with GTK and running under Gnome, |
| 303 | multiple threads may be created. Keep track of our main |
| 304 | thread to make sure signals are delivered to it (see syssignal.h). */ |
| 305 | |
| 306 | pthread_t main_thread; |
| 307 | #endif |
| 308 | |
| 309 | |
| 310 | /* Handle bus errors, invalid instruction, etc. */ |
| 311 | #ifndef FLOAT_CATCH_SIGILL |
| 312 | static |
| 313 | #endif |
| 314 | void |
| 315 | fatal_error_signal (int sig) |
| 316 | { |
| 317 | SIGNAL_THREAD_CHECK (sig); |
| 318 | fatal_error_code = sig; |
| 319 | signal (sig, SIG_DFL); |
| 320 | |
| 321 | TOTALLY_UNBLOCK_INPUT; |
| 322 | |
| 323 | /* If fatal error occurs in code below, avoid infinite recursion. */ |
| 324 | if (! fatal_error_in_progress) |
| 325 | { |
| 326 | fatal_error_in_progress = 1; |
| 327 | |
| 328 | if (sig == SIGTERM || sig == SIGHUP || sig == SIGINT) |
| 329 | Fkill_emacs (make_number (sig)); |
| 330 | |
| 331 | shut_down_emacs (sig, 0, Qnil); |
| 332 | } |
| 333 | |
| 334 | /* Signal the same code; this time it will really be fatal. |
| 335 | Remember that since we're in a signal handler, the signal we're |
| 336 | going to send is probably blocked, so we have to unblock it if we |
| 337 | want to really receive it. */ |
| 338 | #ifndef MSDOS |
| 339 | sigunblock (sigmask (fatal_error_code)); |
| 340 | #endif |
| 341 | |
| 342 | if (fatal_error_signal_hook) |
| 343 | fatal_error_signal_hook (); |
| 344 | |
| 345 | kill (getpid (), fatal_error_code); |
| 346 | } |
| 347 | |
| 348 | #ifdef SIGDANGER |
| 349 | |
| 350 | /* Handler for SIGDANGER. */ |
| 351 | void |
| 352 | memory_warning_signal (sig) |
| 353 | int sig; |
| 354 | { |
| 355 | signal (sig, memory_warning_signal); |
| 356 | SIGNAL_THREAD_CHECK (sig); |
| 357 | |
| 358 | malloc_warning ("Operating system warns that virtual memory is running low.\n"); |
| 359 | |
| 360 | /* It might be unsafe to call do_auto_save now. */ |
| 361 | force_auto_save_soon (); |
| 362 | } |
| 363 | #endif |
| 364 | |
| 365 | /* We define abort, rather than using it from the library, |
| 366 | so that GDB can return from a breakpoint here. |
| 367 | MSDOS has its own definition in msdos.c. */ |
| 368 | |
| 369 | #if ! defined (DOS_NT) && ! defined (NO_ABORT) |
| 370 | |
| 371 | void |
| 372 | abort (void) |
| 373 | { |
| 374 | kill (getpid (), SIGABRT); |
| 375 | /* This shouldn't be executed, but it prevents a warning. */ |
| 376 | exit (1); |
| 377 | } |
| 378 | #endif |
| 379 | |
| 380 | \f |
| 381 | /* Code for dealing with Lisp access to the Unix command line. */ |
| 382 | |
| 383 | static void |
| 384 | init_cmdargs (int argc, char **argv, int skip_args) |
| 385 | { |
| 386 | register int i; |
| 387 | Lisp_Object name, dir, handler; |
| 388 | int count = SPECPDL_INDEX (); |
| 389 | Lisp_Object raw_name; |
| 390 | |
| 391 | initial_argv = argv; |
| 392 | initial_argc = argc; |
| 393 | |
| 394 | raw_name = build_string (argv[0]); |
| 395 | |
| 396 | /* Add /: to the front of the name |
| 397 | if it would otherwise be treated as magic. */ |
| 398 | handler = Ffind_file_name_handler (raw_name, Qt); |
| 399 | if (! NILP (handler)) |
| 400 | raw_name = concat2 (build_string ("/:"), raw_name); |
| 401 | |
| 402 | Vinvocation_name = Ffile_name_nondirectory (raw_name); |
| 403 | Vinvocation_directory = Ffile_name_directory (raw_name); |
| 404 | |
| 405 | /* If we got no directory in argv[0], search PATH to find where |
| 406 | Emacs actually came from. */ |
| 407 | if (NILP (Vinvocation_directory)) |
| 408 | { |
| 409 | Lisp_Object found; |
| 410 | int yes = openp (Vexec_path, Vinvocation_name, |
| 411 | Vexec_suffixes, &found, make_number (X_OK)); |
| 412 | if (yes == 1) |
| 413 | { |
| 414 | /* Add /: to the front of the name |
| 415 | if it would otherwise be treated as magic. */ |
| 416 | handler = Ffind_file_name_handler (found, Qt); |
| 417 | if (! NILP (handler)) |
| 418 | found = concat2 (build_string ("/:"), found); |
| 419 | Vinvocation_directory = Ffile_name_directory (found); |
| 420 | } |
| 421 | } |
| 422 | |
| 423 | if (!NILP (Vinvocation_directory) |
| 424 | && NILP (Ffile_name_absolute_p (Vinvocation_directory))) |
| 425 | /* Emacs was started with relative path, like ./emacs. |
| 426 | Make it absolute. */ |
| 427 | Vinvocation_directory = Fexpand_file_name (Vinvocation_directory, Qnil); |
| 428 | |
| 429 | Vinstallation_directory = Qnil; |
| 430 | |
| 431 | if (!NILP (Vinvocation_directory)) |
| 432 | { |
| 433 | dir = Vinvocation_directory; |
| 434 | name = Fexpand_file_name (Vinvocation_name, dir); |
| 435 | while (1) |
| 436 | { |
| 437 | Lisp_Object tem, lib_src_exists; |
| 438 | Lisp_Object etc_exists, info_exists; |
| 439 | |
| 440 | /* See if dir contains subdirs for use by Emacs. |
| 441 | Check for the ones that would exist in a build directory, |
| 442 | not including lisp and info. */ |
| 443 | tem = Fexpand_file_name (build_string ("lib-src"), dir); |
| 444 | lib_src_exists = Ffile_exists_p (tem); |
| 445 | |
| 446 | #ifdef MSDOS |
| 447 | /* MSDOS installations frequently remove lib-src, but we still |
| 448 | must set installation-directory, or else info won't find |
| 449 | its files (it uses the value of installation-directory). */ |
| 450 | tem = Fexpand_file_name (build_string ("info"), dir); |
| 451 | info_exists = Ffile_exists_p (tem); |
| 452 | #else |
| 453 | info_exists = Qnil; |
| 454 | #endif |
| 455 | |
| 456 | if (!NILP (lib_src_exists) || !NILP (info_exists)) |
| 457 | { |
| 458 | tem = Fexpand_file_name (build_string ("etc"), dir); |
| 459 | etc_exists = Ffile_exists_p (tem); |
| 460 | if (!NILP (etc_exists)) |
| 461 | { |
| 462 | Vinstallation_directory |
| 463 | = Ffile_name_as_directory (dir); |
| 464 | break; |
| 465 | } |
| 466 | } |
| 467 | |
| 468 | /* See if dir's parent contains those subdirs. */ |
| 469 | tem = Fexpand_file_name (build_string ("../lib-src"), dir); |
| 470 | lib_src_exists = Ffile_exists_p (tem); |
| 471 | |
| 472 | |
| 473 | #ifdef MSDOS |
| 474 | /* See the MSDOS commentary above. */ |
| 475 | tem = Fexpand_file_name (build_string ("../info"), dir); |
| 476 | info_exists = Ffile_exists_p (tem); |
| 477 | #else |
| 478 | info_exists = Qnil; |
| 479 | #endif |
| 480 | |
| 481 | if (!NILP (lib_src_exists) || !NILP (info_exists)) |
| 482 | { |
| 483 | tem = Fexpand_file_name (build_string ("../etc"), dir); |
| 484 | etc_exists = Ffile_exists_p (tem); |
| 485 | if (!NILP (etc_exists)) |
| 486 | { |
| 487 | tem = Fexpand_file_name (build_string (".."), dir); |
| 488 | Vinstallation_directory |
| 489 | = Ffile_name_as_directory (tem); |
| 490 | break; |
| 491 | } |
| 492 | } |
| 493 | |
| 494 | /* If the Emacs executable is actually a link, |
| 495 | next try the dir that the link points into. */ |
| 496 | tem = Ffile_symlink_p (name); |
| 497 | if (!NILP (tem)) |
| 498 | { |
| 499 | name = Fexpand_file_name (tem, dir); |
| 500 | dir = Ffile_name_directory (name); |
| 501 | } |
| 502 | else |
| 503 | break; |
| 504 | } |
| 505 | } |
| 506 | |
| 507 | Vcommand_line_args = Qnil; |
| 508 | |
| 509 | for (i = argc - 1; i >= 0; i--) |
| 510 | { |
| 511 | if (i == 0 || i > skip_args) |
| 512 | /* For the moment, we keep arguments as is in unibyte strings. |
| 513 | They are decoded in the function command-line after we know |
| 514 | locale-coding-system. */ |
| 515 | Vcommand_line_args |
| 516 | = Fcons (make_unibyte_string (argv[i], strlen (argv[i])), |
| 517 | Vcommand_line_args); |
| 518 | } |
| 519 | |
| 520 | unbind_to (count, Qnil); |
| 521 | } |
| 522 | |
| 523 | DEFUN ("invocation-name", Finvocation_name, Sinvocation_name, 0, 0, 0, |
| 524 | doc: /* Return the program name that was used to run Emacs. |
| 525 | Any directory names are omitted. */) |
| 526 | (void) |
| 527 | { |
| 528 | return Fcopy_sequence (Vinvocation_name); |
| 529 | } |
| 530 | |
| 531 | DEFUN ("invocation-directory", Finvocation_directory, Sinvocation_directory, |
| 532 | 0, 0, 0, |
| 533 | doc: /* Return the directory name in which the Emacs executable was located. */) |
| 534 | (void) |
| 535 | { |
| 536 | return Fcopy_sequence (Vinvocation_directory); |
| 537 | } |
| 538 | |
| 539 | \f |
| 540 | #ifdef HAVE_TZSET |
| 541 | /* A valid but unlikely value for the TZ environment value. |
| 542 | It is OK (though a bit slower) if the user actually chooses this value. */ |
| 543 | static char dump_tz[] = "UtC0"; |
| 544 | #endif |
| 545 | |
| 546 | #ifndef ORDINARY_LINK |
| 547 | /* We don't include crtbegin.o and crtend.o in the link, |
| 548 | so these functions and variables might be missed. |
| 549 | Provide dummy definitions to avoid error. |
| 550 | (We don't have any real constructors or destructors.) */ |
| 551 | #ifdef __GNUC__ |
| 552 | |
| 553 | /* Define a dummy function F. Declare F too, to pacify gcc |
| 554 | -Wmissing-prototypes. */ |
| 555 | #define DEFINE_DUMMY_FUNCTION(f) \ |
| 556 | void f (void) EXTERNALLY_VISIBLE; void f (void) {} |
| 557 | |
| 558 | #ifndef GCC_CTORS_IN_LIBC |
| 559 | DEFINE_DUMMY_FUNCTION (__do_global_ctors) |
| 560 | DEFINE_DUMMY_FUNCTION (__do_global_ctors_aux) |
| 561 | DEFINE_DUMMY_FUNCTION (__do_global_dtors) |
| 562 | /* GNU/Linux has a bug in its library; avoid an error. */ |
| 563 | #ifndef GNU_LINUX |
| 564 | char * __CTOR_LIST__[2] EXTERNALLY_VISIBLE = { (char *) (-1), 0 }; |
| 565 | #endif |
| 566 | char * __DTOR_LIST__[2] EXTERNALLY_VISIBLE = { (char *) (-1), 0 }; |
| 567 | #endif /* GCC_CTORS_IN_LIBC */ |
| 568 | DEFINE_DUMMY_FUNCTION (__main) |
| 569 | #endif /* __GNUC__ */ |
| 570 | #endif /* ORDINARY_LINK */ |
| 571 | |
| 572 | /* Test whether the next argument in ARGV matches SSTR or a prefix of |
| 573 | LSTR (at least MINLEN characters). If so, then if VALPTR is non-null |
| 574 | (the argument is supposed to have a value) store in *VALPTR either |
| 575 | the next argument or the portion of this one after the equal sign. |
| 576 | ARGV is read starting at position *SKIPPTR; this index is advanced |
| 577 | by the number of arguments used. |
| 578 | |
| 579 | Too bad we can't just use getopt for all of this, but we don't have |
| 580 | enough information to do it right. */ |
| 581 | |
| 582 | static int |
| 583 | argmatch (char **argv, int argc, const char *sstr, const char *lstr, |
| 584 | int minlen, char **valptr, int *skipptr) |
| 585 | { |
| 586 | char *p = NULL; |
| 587 | int arglen; |
| 588 | char *arg; |
| 589 | |
| 590 | /* Don't access argv[argc]; give up in advance. */ |
| 591 | if (argc <= *skipptr + 1) |
| 592 | return 0; |
| 593 | |
| 594 | arg = argv[*skipptr+1]; |
| 595 | if (arg == NULL) |
| 596 | return 0; |
| 597 | if (strcmp (arg, sstr) == 0) |
| 598 | { |
| 599 | if (valptr != NULL) |
| 600 | { |
| 601 | *valptr = argv[*skipptr+2]; |
| 602 | *skipptr += 2; |
| 603 | } |
| 604 | else |
| 605 | *skipptr += 1; |
| 606 | return 1; |
| 607 | } |
| 608 | arglen = (valptr != NULL && (p = strchr (arg, '=')) != NULL |
| 609 | ? p - arg : strlen (arg)); |
| 610 | if (lstr == 0 || arglen < minlen || strncmp (arg, lstr, arglen) != 0) |
| 611 | return 0; |
| 612 | else if (valptr == NULL) |
| 613 | { |
| 614 | *skipptr += 1; |
| 615 | return 1; |
| 616 | } |
| 617 | else if (p != NULL) |
| 618 | { |
| 619 | *valptr = p+1; |
| 620 | *skipptr += 1; |
| 621 | return 1; |
| 622 | } |
| 623 | else if (argv[*skipptr+2] != NULL) |
| 624 | { |
| 625 | *valptr = argv[*skipptr+2]; |
| 626 | *skipptr += 2; |
| 627 | return 1; |
| 628 | } |
| 629 | else |
| 630 | { |
| 631 | return 0; |
| 632 | } |
| 633 | } |
| 634 | |
| 635 | #ifdef DOUG_LEA_MALLOC |
| 636 | |
| 637 | /* malloc can be invoked even before main (e.g. by the dynamic |
| 638 | linker), so the dumped malloc state must be restored as early as |
| 639 | possible using this special hook. */ |
| 640 | |
| 641 | static void |
| 642 | malloc_initialize_hook (void) |
| 643 | { |
| 644 | #ifndef USE_CRT_DLL |
| 645 | extern char **environ; |
| 646 | #endif |
| 647 | |
| 648 | if (initialized) |
| 649 | { |
| 650 | if (!malloc_using_checking) |
| 651 | /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be |
| 652 | ignored if the heap to be restored was constructed without |
| 653 | malloc checking. Can't use unsetenv, since that calls malloc. */ |
| 654 | { |
| 655 | char **p; |
| 656 | |
| 657 | for (p = environ; p && *p; p++) |
| 658 | if (strncmp (*p, "MALLOC_CHECK_=", 14) == 0) |
| 659 | { |
| 660 | do |
| 661 | *p = p[1]; |
| 662 | while (*++p); |
| 663 | break; |
| 664 | } |
| 665 | } |
| 666 | |
| 667 | malloc_set_state (malloc_state_ptr); |
| 668 | #ifndef XMALLOC_OVERRUN_CHECK |
| 669 | free (malloc_state_ptr); |
| 670 | #endif |
| 671 | } |
| 672 | else |
| 673 | { |
| 674 | if (my_heap_start == 0) |
| 675 | my_heap_start = sbrk (0); |
| 676 | malloc_using_checking = getenv ("MALLOC_CHECK_") != NULL; |
| 677 | } |
| 678 | } |
| 679 | |
| 680 | void (*__malloc_initialize_hook) (void) = malloc_initialize_hook; |
| 681 | |
| 682 | #endif /* DOUG_LEA_MALLOC */ |
| 683 | |
| 684 | |
| 685 | /* ARGSUSED */ |
| 686 | int |
| 687 | main (int argc, char **argv) |
| 688 | { |
| 689 | #if GC_MARK_STACK |
| 690 | Lisp_Object dummy; |
| 691 | #endif |
| 692 | char stack_bottom_variable; |
| 693 | int do_initial_setlocale; |
| 694 | int skip_args = 0; |
| 695 | #ifdef HAVE_SETRLIMIT |
| 696 | struct rlimit rlim; |
| 697 | #endif |
| 698 | int no_loadup = 0; |
| 699 | char *junk = 0; |
| 700 | char *dname_arg = 0; |
| 701 | #ifdef NS_IMPL_COCOA |
| 702 | char dname_arg2[80]; |
| 703 | #endif |
| 704 | char *ch_to_dir; |
| 705 | |
| 706 | #if GC_MARK_STACK |
| 707 | stack_base = &dummy; |
| 708 | #endif |
| 709 | |
| 710 | #if defined (USE_GTK) && defined (G_SLICE_ALWAYS_MALLOC) |
| 711 | /* This is used by the Cygwin build. */ |
| 712 | setenv ("G_SLICE", "always-malloc", 1); |
| 713 | #endif |
| 714 | |
| 715 | if (!initialized) |
| 716 | { |
| 717 | extern char my_endbss[]; |
| 718 | extern char *my_endbss_static; |
| 719 | |
| 720 | if (my_heap_start == 0) |
| 721 | my_heap_start = sbrk (0); |
| 722 | |
| 723 | heap_bss_diff = (char *)my_heap_start - max (my_endbss, my_endbss_static); |
| 724 | } |
| 725 | |
| 726 | #ifdef RUN_TIME_REMAP |
| 727 | if (initialized) |
| 728 | run_time_remap (argv[0]); |
| 729 | #endif |
| 730 | |
| 731 | /* If using unexmacosx.c (set by s/darwin.h), we must do this. */ |
| 732 | #ifdef DARWIN_OS |
| 733 | if (!initialized) |
| 734 | unexec_init_emacs_zone (); |
| 735 | #endif |
| 736 | |
| 737 | sort_args (argc, argv); |
| 738 | argc = 0; |
| 739 | while (argv[argc]) argc++; |
| 740 | |
| 741 | if (argmatch (argv, argc, "-version", "--version", 3, NULL, &skip_args)) |
| 742 | { |
| 743 | const char *version, *copyright; |
| 744 | if (initialized) |
| 745 | { |
| 746 | Lisp_Object tem, tem2; |
| 747 | tem = Fsymbol_value (intern_c_string ("emacs-version")); |
| 748 | tem2 = Fsymbol_value (intern_c_string ("emacs-copyright")); |
| 749 | if (!STRINGP (tem)) |
| 750 | { |
| 751 | fprintf (stderr, "Invalid value of `emacs-version'\n"); |
| 752 | exit (1); |
| 753 | } |
| 754 | if (!STRINGP (tem2)) |
| 755 | { |
| 756 | fprintf (stderr, "Invalid value of `emacs-copyright'\n"); |
| 757 | exit (1); |
| 758 | } |
| 759 | else |
| 760 | { |
| 761 | version = SSDATA (tem); |
| 762 | copyright = SSDATA (tem2); |
| 763 | } |
| 764 | } |
| 765 | else |
| 766 | { |
| 767 | version = emacs_version; |
| 768 | copyright = emacs_copyright; |
| 769 | } |
| 770 | printf ("GNU Emacs %s\n", version); |
| 771 | printf ("%s\n", copyright); |
| 772 | printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n"); |
| 773 | printf ("You may redistribute copies of Emacs\n"); |
| 774 | printf ("under the terms of the GNU General Public License.\n"); |
| 775 | printf ("For more information about these matters, "); |
| 776 | printf ("see the file named COPYING.\n"); |
| 777 | exit (0); |
| 778 | } |
| 779 | |
| 780 | if (argmatch (argv, argc, "-chdir", "--chdir", 4, &ch_to_dir, &skip_args)) |
| 781 | if (chdir (ch_to_dir) == -1) |
| 782 | { |
| 783 | fprintf (stderr, "%s: Can't chdir to %s: %s\n", |
| 784 | argv[0], ch_to_dir, strerror (errno)); |
| 785 | exit (1); |
| 786 | } |
| 787 | |
| 788 | |
| 789 | #ifdef HAVE_PERSONALITY_LINUX32 |
| 790 | if (!initialized |
| 791 | && (strcmp (argv[argc-1], "dump") == 0 |
| 792 | || strcmp (argv[argc-1], "bootstrap") == 0) |
| 793 | && ! getenv ("EMACS_HEAP_EXEC")) |
| 794 | { |
| 795 | static char heapexec[] = "EMACS_HEAP_EXEC=true"; |
| 796 | /* Set this so we only do this once. */ |
| 797 | putenv(heapexec); |
| 798 | |
| 799 | /* A flag to turn off address randomization which is introduced |
| 800 | in linux kernel shipped with fedora core 4 */ |
| 801 | #define ADD_NO_RANDOMIZE 0x0040000 |
| 802 | personality (PER_LINUX32 | ADD_NO_RANDOMIZE); |
| 803 | #undef ADD_NO_RANDOMIZE |
| 804 | |
| 805 | execvp (argv[0], argv); |
| 806 | |
| 807 | /* If the exec fails, try to dump anyway. */ |
| 808 | perror ("execvp"); |
| 809 | } |
| 810 | #endif /* HAVE_PERSONALITY_LINUX32 */ |
| 811 | |
| 812 | #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK) |
| 813 | /* Extend the stack space available. |
| 814 | Don't do that if dumping, since some systems (e.g. DJGPP) |
| 815 | might define a smaller stack limit at that time. */ |
| 816 | if (1 |
| 817 | #ifndef CANNOT_DUMP |
| 818 | && (!noninteractive || initialized) |
| 819 | #endif |
| 820 | && !getrlimit (RLIMIT_STACK, &rlim)) |
| 821 | { |
| 822 | long newlim; |
| 823 | extern size_t re_max_failures; |
| 824 | /* Approximate the amount regex.c needs per unit of re_max_failures. */ |
| 825 | int ratio = 20 * sizeof (char *); |
| 826 | /* Then add 33% to cover the size of the smaller stacks that regex.c |
| 827 | successively allocates and discards, on its way to the maximum. */ |
| 828 | ratio += ratio / 3; |
| 829 | /* Add in some extra to cover |
| 830 | what we're likely to use for other reasons. */ |
| 831 | newlim = re_max_failures * ratio + 200000; |
| 832 | #ifdef __NetBSD__ |
| 833 | /* NetBSD (at least NetBSD 1.2G and former) has a bug in its |
| 834 | stack allocation routine for new process that the allocation |
| 835 | fails if stack limit is not on page boundary. So, round up the |
| 836 | new limit to page boundary. */ |
| 837 | newlim = (newlim + getpagesize () - 1) / getpagesize () * getpagesize(); |
| 838 | #endif |
| 839 | if (newlim > rlim.rlim_max) |
| 840 | { |
| 841 | newlim = rlim.rlim_max; |
| 842 | /* Don't let regex.c overflow the stack we have. */ |
| 843 | re_max_failures = (newlim - 200000) / ratio; |
| 844 | } |
| 845 | if (rlim.rlim_cur < newlim) |
| 846 | rlim.rlim_cur = newlim; |
| 847 | |
| 848 | setrlimit (RLIMIT_STACK, &rlim); |
| 849 | } |
| 850 | #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */ |
| 851 | |
| 852 | /* Record (approximately) where the stack begins. */ |
| 853 | stack_bottom = &stack_bottom_variable; |
| 854 | |
| 855 | clearerr (stdin); |
| 856 | |
| 857 | #ifndef SYSTEM_MALLOC |
| 858 | /* Arrange to get warning messages as memory fills up. */ |
| 859 | memory_warnings (0, malloc_warning); |
| 860 | |
| 861 | /* Call malloc at least once, to run the initial __malloc_hook. |
| 862 | Also call realloc and free for consistency. */ |
| 863 | free (realloc (malloc (4), 4)); |
| 864 | |
| 865 | # ifndef SYNC_INPUT |
| 866 | /* Arrange to disable interrupt input inside malloc etc. */ |
| 867 | uninterrupt_malloc (); |
| 868 | # endif /* not SYNC_INPUT */ |
| 869 | #endif /* not SYSTEM_MALLOC */ |
| 870 | |
| 871 | #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD |
| 872 | main_thread = pthread_self (); |
| 873 | #endif /* FORWARD_SIGNAL_TO_MAIN_THREAD */ |
| 874 | |
| 875 | #if defined (MSDOS) || defined (WINDOWSNT) |
| 876 | /* We do all file input/output as binary files. When we need to translate |
| 877 | newlines, we do that manually. */ |
| 878 | _fmode = O_BINARY; |
| 879 | #endif /* MSDOS || WINDOWSNT */ |
| 880 | |
| 881 | #ifdef MSDOS |
| 882 | if (!isatty (fileno (stdin))) |
| 883 | setmode (fileno (stdin), O_BINARY); |
| 884 | if (!isatty (fileno (stdout))) |
| 885 | { |
| 886 | fflush (stdout); |
| 887 | setmode (fileno (stdout), O_BINARY); |
| 888 | } |
| 889 | #endif /* MSDOS */ |
| 890 | |
| 891 | /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case. |
| 892 | The build procedure uses this while dumping, to ensure that the |
| 893 | dumped Emacs does not have its system locale tables initialized, |
| 894 | as that might cause screwups when the dumped Emacs starts up. */ |
| 895 | { |
| 896 | char *lc_all = getenv ("LC_ALL"); |
| 897 | do_initial_setlocale = ! lc_all || strcmp (lc_all, "C"); |
| 898 | } |
| 899 | |
| 900 | /* Set locale now, so that initial error messages are localized properly. |
| 901 | fixup_locale must wait until later, since it builds strings. */ |
| 902 | if (do_initial_setlocale) |
| 903 | setlocale (LC_ALL, ""); |
| 904 | |
| 905 | inhibit_window_system = 0; |
| 906 | |
| 907 | /* Handle the -t switch, which specifies filename to use as terminal. */ |
| 908 | while (1) |
| 909 | { |
| 910 | char *term; |
| 911 | if (argmatch (argv, argc, "-t", "--terminal", 4, &term, &skip_args)) |
| 912 | { |
| 913 | int result; |
| 914 | emacs_close (0); |
| 915 | emacs_close (1); |
| 916 | result = emacs_open (term, O_RDWR, 0); |
| 917 | if (result < 0 || dup (0) < 0) |
| 918 | { |
| 919 | char *errstring = strerror (errno); |
| 920 | fprintf (stderr, "%s: %s: %s\n", argv[0], term, errstring); |
| 921 | exit (1); |
| 922 | } |
| 923 | if (! isatty (0)) |
| 924 | { |
| 925 | fprintf (stderr, "%s: %s: not a tty\n", argv[0], term); |
| 926 | exit (1); |
| 927 | } |
| 928 | fprintf (stderr, "Using %s\n", term); |
| 929 | #ifdef HAVE_WINDOW_SYSTEM |
| 930 | inhibit_window_system = 1; /* -t => -nw */ |
| 931 | #endif |
| 932 | } |
| 933 | else |
| 934 | break; |
| 935 | } |
| 936 | |
| 937 | /* Command line option --no-windows is deprecated and thus not mentioned |
| 938 | in the manual and usage informations. */ |
| 939 | if (argmatch (argv, argc, "-nw", "--no-window-system", 6, NULL, &skip_args) |
| 940 | || argmatch (argv, argc, "-nw", "--no-windows", 6, NULL, &skip_args)) |
| 941 | inhibit_window_system = 1; |
| 942 | |
| 943 | /* Handle the -batch switch, which means don't do interactive display. */ |
| 944 | noninteractive = 0; |
| 945 | if (argmatch (argv, argc, "-batch", "--batch", 5, NULL, &skip_args)) |
| 946 | { |
| 947 | noninteractive = 1; |
| 948 | Vundo_outer_limit = Qnil; |
| 949 | } |
| 950 | if (argmatch (argv, argc, "-script", "--script", 3, &junk, &skip_args)) |
| 951 | { |
| 952 | noninteractive = 1; /* Set batch mode. */ |
| 953 | /* Convert --script to -scriptload, un-skip it, and sort again |
| 954 | so that it will be handled in proper sequence. */ |
| 955 | /* FIXME broken for --script=FILE - is that supposed to work? */ |
| 956 | argv[skip_args - 1] = (char *) "-scriptload"; |
| 957 | skip_args -= 2; |
| 958 | sort_args (argc, argv); |
| 959 | } |
| 960 | |
| 961 | /* Handle the --help option, which gives a usage message. */ |
| 962 | if (argmatch (argv, argc, "-help", "--help", 3, NULL, &skip_args)) |
| 963 | { |
| 964 | printf (USAGE1, argv[0], USAGE2); |
| 965 | printf (USAGE3); |
| 966 | printf (USAGE4); |
| 967 | exit (0); |
| 968 | } |
| 969 | |
| 970 | if (argmatch (argv, argc, "-daemon", "--daemon", 5, NULL, &skip_args) |
| 971 | || argmatch (argv, argc, "-daemon", "--daemon", 5, &dname_arg, &skip_args)) |
| 972 | { |
| 973 | #ifndef DOS_NT |
| 974 | pid_t f; |
| 975 | |
| 976 | /* Start as a daemon: fork a new child process which will run the |
| 977 | rest of the initialization code, then exit. |
| 978 | |
| 979 | Detaching a daemon requires the following steps: |
| 980 | - fork |
| 981 | - setsid |
| 982 | - exit the parent |
| 983 | - close the tty file-descriptors |
| 984 | |
| 985 | We only want to do the last 2 steps once the daemon is ready to |
| 986 | serve requests, i.e. after loading .emacs (initialization). |
| 987 | OTOH initialization may start subprocesses (e.g. ispell) and these |
| 988 | should be run from the proper process (the one that will end up |
| 989 | running as daemon) and with the proper "session id" in order for |
| 990 | them to keep working after detaching, so fork and setsid need to be |
| 991 | performed before initialization. |
| 992 | |
| 993 | We want to avoid exiting before the server socket is ready, so |
| 994 | use a pipe for synchronization. The parent waits for the child |
| 995 | to close its end of the pipe (using `daemon-initialized') |
| 996 | before exiting. */ |
| 997 | if (pipe (daemon_pipe) == -1) |
| 998 | { |
| 999 | fprintf (stderr, "Cannot pipe!\n"); |
| 1000 | exit (1); |
| 1001 | } |
| 1002 | |
| 1003 | #ifndef NS_IMPL_COCOA |
| 1004 | f = fork (); |
| 1005 | #else /* NS_IMPL_COCOA */ |
| 1006 | /* Under Cocoa we must do fork+exec as CoreFoundation lib fails in |
| 1007 | forked process: http://developer.apple.com/ReleaseNotes/ |
| 1008 | CoreFoundation/CoreFoundation.html) |
| 1009 | We mark being in the exec'd process by a daemon name argument of |
| 1010 | form "--daemon=\nFD0,FD1\nNAME" where FD are the pipe file descriptors, |
| 1011 | NAME is the original daemon name, if any. */ |
| 1012 | if (!dname_arg || !strchr (dname_arg, '\n')) |
| 1013 | f = fork (); /* in orig */ |
| 1014 | else |
| 1015 | f = 0; /* in exec'd */ |
| 1016 | #endif /* NS_IMPL_COCOA */ |
| 1017 | if (f > 0) |
| 1018 | { |
| 1019 | int retval; |
| 1020 | char buf[1]; |
| 1021 | |
| 1022 | /* Close unused writing end of the pipe. */ |
| 1023 | close (daemon_pipe[1]); |
| 1024 | |
| 1025 | /* Just wait for the child to close its end of the pipe. */ |
| 1026 | do |
| 1027 | { |
| 1028 | retval = read (daemon_pipe[0], &buf, 1); |
| 1029 | } |
| 1030 | while (retval == -1 && errno == EINTR); |
| 1031 | |
| 1032 | if (retval < 0) |
| 1033 | { |
| 1034 | fprintf (stderr, "Error reading status from child\n"); |
| 1035 | exit (1); |
| 1036 | } |
| 1037 | else if (retval == 0) |
| 1038 | { |
| 1039 | fprintf (stderr, "Error: server did not start correctly\n"); |
| 1040 | exit (1); |
| 1041 | } |
| 1042 | |
| 1043 | close (daemon_pipe[0]); |
| 1044 | exit (0); |
| 1045 | } |
| 1046 | if (f < 0) |
| 1047 | { |
| 1048 | fprintf (stderr, "Cannot fork!\n"); |
| 1049 | exit (1); |
| 1050 | } |
| 1051 | |
| 1052 | #ifdef NS_IMPL_COCOA |
| 1053 | { |
| 1054 | /* In orig process, forked as child, OR in exec'd. */ |
| 1055 | if (!dname_arg || !strchr (dname_arg, '\n')) |
| 1056 | { /* In orig, child: now exec w/special daemon name. */ |
| 1057 | char fdStr[80]; |
| 1058 | |
| 1059 | if (dname_arg && strlen (dname_arg) > 70) |
| 1060 | { |
| 1061 | fprintf (stderr, "daemon: child name too long\n"); |
| 1062 | exit (1); |
| 1063 | } |
| 1064 | |
| 1065 | sprintf (fdStr, "--daemon=\n%d,%d\n%s", daemon_pipe[0], |
| 1066 | daemon_pipe[1], dname_arg ? dname_arg : ""); |
| 1067 | argv[skip_args] = fdStr; |
| 1068 | |
| 1069 | execv (argv[0], argv); |
| 1070 | fprintf (stderr, "emacs daemon: exec failed: %d\n", errno); |
| 1071 | exit (1); |
| 1072 | } |
| 1073 | |
| 1074 | /* In exec'd: parse special dname into pipe and name info. */ |
| 1075 | if (!dname_arg || !strchr (dname_arg, '\n') |
| 1076 | || strlen (dname_arg) < 1 || strlen (dname_arg) > 70) |
| 1077 | { |
| 1078 | fprintf (stderr, "emacs daemon: daemon name absent or too long\n"); |
| 1079 | exit(1); |
| 1080 | } |
| 1081 | dname_arg2[0] = '\0'; |
| 1082 | sscanf (dname_arg, "\n%d,%d\n%s", &(daemon_pipe[0]), &(daemon_pipe[1]), |
| 1083 | dname_arg2); |
| 1084 | dname_arg = strlen (dname_arg2) ? dname_arg2 : NULL; |
| 1085 | } |
| 1086 | #endif /* NS_IMPL_COCOA */ |
| 1087 | |
| 1088 | if (dname_arg) |
| 1089 | daemon_name = xstrdup (dname_arg); |
| 1090 | /* Close unused reading end of the pipe. */ |
| 1091 | close (daemon_pipe[0]); |
| 1092 | /* Make sure that the used end of the pipe is closed on exec, so |
| 1093 | that it is not accessible to programs started from .emacs. */ |
| 1094 | fcntl (daemon_pipe[1], F_SETFD, FD_CLOEXEC); |
| 1095 | |
| 1096 | #ifdef HAVE_SETSID |
| 1097 | setsid(); |
| 1098 | #endif |
| 1099 | #else /* DOS_NT */ |
| 1100 | fprintf (stderr, "This platform does not support the -daemon flag.\n"); |
| 1101 | exit (1); |
| 1102 | #endif /* DOS_NT */ |
| 1103 | } |
| 1104 | |
| 1105 | if (! noninteractive) |
| 1106 | { |
| 1107 | #if defined (USG5) && defined (INTERRUPT_INPUT) |
| 1108 | setpgrp (); |
| 1109 | #endif |
| 1110 | #if defined (HAVE_GTK_AND_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC) |
| 1111 | { |
| 1112 | extern void malloc_enable_thread (void); |
| 1113 | |
| 1114 | malloc_enable_thread (); |
| 1115 | } |
| 1116 | #endif |
| 1117 | } |
| 1118 | |
| 1119 | init_signals (); |
| 1120 | |
| 1121 | /* Don't catch SIGHUP if dumping. */ |
| 1122 | if (1 |
| 1123 | #ifndef CANNOT_DUMP |
| 1124 | && initialized |
| 1125 | #endif |
| 1126 | ) |
| 1127 | { |
| 1128 | sigblock (sigmask (SIGHUP)); |
| 1129 | /* In --batch mode, don't catch SIGHUP if already ignored. |
| 1130 | That makes nohup work. */ |
| 1131 | if (! noninteractive |
| 1132 | || signal (SIGHUP, SIG_IGN) != SIG_IGN) |
| 1133 | signal (SIGHUP, fatal_error_signal); |
| 1134 | sigunblock (sigmask (SIGHUP)); |
| 1135 | } |
| 1136 | |
| 1137 | if ( |
| 1138 | #ifndef CANNOT_DUMP |
| 1139 | ! noninteractive || initialized |
| 1140 | #else |
| 1141 | 1 |
| 1142 | #endif |
| 1143 | ) |
| 1144 | { |
| 1145 | /* Don't catch these signals in batch mode if dumping. |
| 1146 | On some machines, this sets static data that would make |
| 1147 | signal fail to work right when the dumped Emacs is run. */ |
| 1148 | signal (SIGQUIT, fatal_error_signal); |
| 1149 | signal (SIGILL, fatal_error_signal); |
| 1150 | signal (SIGTRAP, fatal_error_signal); |
| 1151 | #ifdef SIGUSR1 |
| 1152 | add_user_signal (SIGUSR1, "sigusr1"); |
| 1153 | #endif |
| 1154 | #ifdef SIGUSR2 |
| 1155 | add_user_signal (SIGUSR2, "sigusr2"); |
| 1156 | #endif |
| 1157 | #ifdef SIGABRT |
| 1158 | signal (SIGABRT, fatal_error_signal); |
| 1159 | #endif |
| 1160 | #ifdef SIGHWE |
| 1161 | signal (SIGHWE, fatal_error_signal); |
| 1162 | #endif |
| 1163 | #ifdef SIGPRE |
| 1164 | signal (SIGPRE, fatal_error_signal); |
| 1165 | #endif |
| 1166 | #ifdef SIGORE |
| 1167 | signal (SIGORE, fatal_error_signal); |
| 1168 | #endif |
| 1169 | #ifdef SIGUME |
| 1170 | signal (SIGUME, fatal_error_signal); |
| 1171 | #endif |
| 1172 | #ifdef SIGDLK |
| 1173 | signal (SIGDLK, fatal_error_signal); |
| 1174 | #endif |
| 1175 | #ifdef SIGCPULIM |
| 1176 | signal (SIGCPULIM, fatal_error_signal); |
| 1177 | #endif |
| 1178 | #ifdef SIGIOT |
| 1179 | /* This is missing on some systems - OS/2, for example. */ |
| 1180 | signal (SIGIOT, fatal_error_signal); |
| 1181 | #endif |
| 1182 | #ifdef SIGEMT |
| 1183 | signal (SIGEMT, fatal_error_signal); |
| 1184 | #endif |
| 1185 | signal (SIGFPE, fatal_error_signal); |
| 1186 | #ifdef SIGBUS |
| 1187 | signal (SIGBUS, fatal_error_signal); |
| 1188 | #endif |
| 1189 | signal (SIGSEGV, fatal_error_signal); |
| 1190 | #ifdef SIGSYS |
| 1191 | signal (SIGSYS, fatal_error_signal); |
| 1192 | #endif |
| 1193 | /* May need special treatment on MS-Windows. See |
| 1194 | http://lists.gnu.org/archive/html/emacs-devel/2010-09/msg01062.html |
| 1195 | Please update the doc of kill-emacs, kill-emacs-hook, and |
| 1196 | NEWS if you change this. |
| 1197 | */ |
| 1198 | if (noninteractive) signal (SIGINT, fatal_error_signal); |
| 1199 | signal (SIGTERM, fatal_error_signal); |
| 1200 | #ifdef SIGXCPU |
| 1201 | signal (SIGXCPU, fatal_error_signal); |
| 1202 | #endif |
| 1203 | #ifdef SIGXFSZ |
| 1204 | signal (SIGXFSZ, fatal_error_signal); |
| 1205 | #endif /* SIGXFSZ */ |
| 1206 | |
| 1207 | #ifdef SIGDANGER |
| 1208 | /* This just means available memory is getting low. */ |
| 1209 | signal (SIGDANGER, memory_warning_signal); |
| 1210 | #endif |
| 1211 | |
| 1212 | #ifdef AIX |
| 1213 | /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */ |
| 1214 | signal (SIGXCPU, fatal_error_signal); |
| 1215 | signal (SIGIOINT, fatal_error_signal); |
| 1216 | signal (SIGGRANT, fatal_error_signal); |
| 1217 | signal (SIGRETRACT, fatal_error_signal); |
| 1218 | signal (SIGSOUND, fatal_error_signal); |
| 1219 | signal (SIGMSG, fatal_error_signal); |
| 1220 | #endif /* AIX */ |
| 1221 | } |
| 1222 | |
| 1223 | noninteractive1 = noninteractive; |
| 1224 | |
| 1225 | /* Perform basic initializations (not merely interning symbols). */ |
| 1226 | |
| 1227 | if (!initialized) |
| 1228 | { |
| 1229 | init_alloc_once (); |
| 1230 | init_obarray (); |
| 1231 | init_eval_once (); |
| 1232 | init_character_once (); |
| 1233 | init_charset_once (); |
| 1234 | init_coding_once (); |
| 1235 | init_syntax_once (); /* Create standard syntax table. */ |
| 1236 | init_category_once (); /* Create standard category table. */ |
| 1237 | /* Must be done before init_buffer. */ |
| 1238 | init_casetab_once (); |
| 1239 | init_buffer_once (); /* Create buffer table and some buffers. */ |
| 1240 | init_minibuf_once (); /* Create list of minibuffers. */ |
| 1241 | /* Must precede init_window_once. */ |
| 1242 | |
| 1243 | /* Call syms_of_xfaces before init_window_once because that |
| 1244 | function creates Vterminal_frame. Termcap frames now use |
| 1245 | faces, and the face implementation uses some symbols as |
| 1246 | face names. */ |
| 1247 | syms_of_xfaces (); |
| 1248 | /* XXX syms_of_keyboard uses some symbols in keymap.c. It would |
| 1249 | be better to arrange things not to have this dependency. */ |
| 1250 | syms_of_keymap (); |
| 1251 | /* Call syms_of_keyboard before init_window_once because |
| 1252 | keyboard sets up symbols that include some face names that |
| 1253 | the X support will want to use. This can happen when |
| 1254 | CANNOT_DUMP is defined. */ |
| 1255 | syms_of_keyboard (); |
| 1256 | |
| 1257 | /* Called before syms_of_fileio, because it sets up Qerror_condition. */ |
| 1258 | syms_of_data (); |
| 1259 | syms_of_fileio (); |
| 1260 | /* Before syms_of_coding to initialize Vgc_cons_threshold. */ |
| 1261 | syms_of_alloc (); |
| 1262 | /* Before syms_of_coding because it initializes Qcharsetp. */ |
| 1263 | syms_of_charset (); |
| 1264 | /* Before init_window_once, because it sets up the |
| 1265 | Vcoding_system_hash_table. */ |
| 1266 | syms_of_coding (); /* This should be after syms_of_fileio. */ |
| 1267 | |
| 1268 | init_window_once (); /* Init the window system. */ |
| 1269 | #ifdef HAVE_WINDOW_SYSTEM |
| 1270 | init_fringe_once (); /* Swap bitmaps if necessary. */ |
| 1271 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 1272 | } |
| 1273 | |
| 1274 | init_alloc (); |
| 1275 | |
| 1276 | if (do_initial_setlocale) |
| 1277 | { |
| 1278 | fixup_locale (); |
| 1279 | Vsystem_messages_locale = Vprevious_system_messages_locale; |
| 1280 | Vsystem_time_locale = Vprevious_system_time_locale; |
| 1281 | } |
| 1282 | |
| 1283 | init_eval (); |
| 1284 | init_data (); |
| 1285 | #ifdef CLASH_DETECTION |
| 1286 | init_filelock (); |
| 1287 | #endif |
| 1288 | init_atimer (); |
| 1289 | running_asynch_code = 0; |
| 1290 | |
| 1291 | no_loadup |
| 1292 | = argmatch (argv, argc, "-nl", "--no-loadup", 6, NULL, &skip_args); |
| 1293 | |
| 1294 | no_site_lisp |
| 1295 | = argmatch (argv, argc, "-nsl", "--no-site-lisp", 11, NULL, &skip_args); |
| 1296 | |
| 1297 | #ifdef HAVE_NS |
| 1298 | ns_alloc_autorelease_pool(); |
| 1299 | if (!noninteractive) |
| 1300 | { |
| 1301 | #ifdef NS_IMPL_COCOA |
| 1302 | if (skip_args < argc) |
| 1303 | { |
| 1304 | /* FIXME: Do the right thing if getenv returns NULL, or if |
| 1305 | chdir fails. */ |
| 1306 | if (!strncmp(argv[skip_args], "-psn", 4)) |
| 1307 | { |
| 1308 | skip_args += 1; |
| 1309 | chdir (getenv ("HOME")); |
| 1310 | } |
| 1311 | else if (skip_args+1 < argc && !strncmp(argv[skip_args+1], "-psn", 4)) |
| 1312 | { |
| 1313 | skip_args += 2; |
| 1314 | chdir (getenv ("HOME")); |
| 1315 | } |
| 1316 | } |
| 1317 | #endif /* COCOA */ |
| 1318 | } |
| 1319 | #endif /* HAVE_NS */ |
| 1320 | |
| 1321 | #ifdef HAVE_X_WINDOWS |
| 1322 | /* Stupid kludge to catch command-line display spec. We can't |
| 1323 | handle this argument entirely in window system dependent code |
| 1324 | because we don't even know which window system dependent code |
| 1325 | to run until we've recognized this argument. */ |
| 1326 | { |
| 1327 | char *displayname = 0; |
| 1328 | int count_before = skip_args; |
| 1329 | |
| 1330 | /* Skip any number of -d options, but only use the last one. */ |
| 1331 | while (1) |
| 1332 | { |
| 1333 | int count_before_this = skip_args; |
| 1334 | |
| 1335 | if (argmatch (argv, argc, "-d", "--display", 3, &displayname, &skip_args)) |
| 1336 | display_arg = 1; |
| 1337 | else if (argmatch (argv, argc, "-display", 0, 3, &displayname, &skip_args)) |
| 1338 | display_arg = 1; |
| 1339 | else |
| 1340 | break; |
| 1341 | |
| 1342 | count_before = count_before_this; |
| 1343 | } |
| 1344 | |
| 1345 | /* If we have the form --display=NAME, |
| 1346 | convert it into -d name. |
| 1347 | This requires inserting a new element into argv. */ |
| 1348 | if (displayname != 0 && skip_args - count_before == 1) |
| 1349 | { |
| 1350 | char **new = (char **) xmalloc (sizeof (char *) * (argc + 2)); |
| 1351 | int j; |
| 1352 | |
| 1353 | for (j = 0; j < count_before + 1; j++) |
| 1354 | new[j] = argv[j]; |
| 1355 | new[count_before + 1] = (char *) "-d"; |
| 1356 | new[count_before + 2] = displayname; |
| 1357 | for (j = count_before + 2; j <argc; j++) |
| 1358 | new[j + 1] = argv[j]; |
| 1359 | argv = new; |
| 1360 | argc++; |
| 1361 | } |
| 1362 | /* Change --display to -d, when its arg is separate. */ |
| 1363 | else if (displayname != 0 && skip_args > count_before |
| 1364 | && argv[count_before + 1][1] == '-') |
| 1365 | argv[count_before + 1] = (char *) "-d"; |
| 1366 | |
| 1367 | if (! no_site_lisp) |
| 1368 | { |
| 1369 | if (argmatch (argv, argc, "-Q", "--quick", 3, NULL, &skip_args) |
| 1370 | || argmatch (argv, argc, "-quick", 0, 2, NULL, &skip_args)) |
| 1371 | no_site_lisp = 1; |
| 1372 | } |
| 1373 | |
| 1374 | /* Don't actually discard this arg. */ |
| 1375 | skip_args = count_before; |
| 1376 | } |
| 1377 | #else /* !HAVE_X_WINDOWS */ |
| 1378 | if (! no_site_lisp) |
| 1379 | { |
| 1380 | int count_before = skip_args; |
| 1381 | |
| 1382 | if (argmatch (argv, argc, "-Q", "--quick", 3, NULL, &skip_args) |
| 1383 | || argmatch (argv, argc, "-quick", 0, 2, NULL, &skip_args)) |
| 1384 | no_site_lisp = 1; |
| 1385 | |
| 1386 | skip_args = count_before; |
| 1387 | } |
| 1388 | #endif |
| 1389 | |
| 1390 | /* argmatch must not be used after here, |
| 1391 | except when bulding temacs |
| 1392 | because the -d argument has not been skipped in skip_args. */ |
| 1393 | |
| 1394 | #ifdef MSDOS |
| 1395 | /* Call early 'cause init_environment needs it. */ |
| 1396 | init_dosfns (); |
| 1397 | /* Set defaults for several environment variables. */ |
| 1398 | if (initialized) |
| 1399 | init_environment (argc, argv, skip_args); |
| 1400 | else |
| 1401 | tzset (); |
| 1402 | #endif /* MSDOS */ |
| 1403 | |
| 1404 | #ifdef WINDOWSNT |
| 1405 | globals_of_w32 (); |
| 1406 | /* Initialize environment from registry settings. */ |
| 1407 | init_environment (argv); |
| 1408 | init_ntproc (); /* must precede init_editfns. */ |
| 1409 | #endif |
| 1410 | |
| 1411 | #ifdef HAVE_NS |
| 1412 | #ifndef CANNOT_DUMP |
| 1413 | if (initialized) |
| 1414 | #endif |
| 1415 | ns_init_paths (); |
| 1416 | #endif |
| 1417 | |
| 1418 | /* Initialize and GC-protect Vinitial_environment and |
| 1419 | Vprocess_environment before set_initial_environment fills them |
| 1420 | in. */ |
| 1421 | if (!initialized) |
| 1422 | syms_of_callproc (); |
| 1423 | /* egetenv is a pretty low-level facility, which may get called in |
| 1424 | many circumstances; it seems flimsy to put off initializing it |
| 1425 | until calling init_callproc. */ |
| 1426 | set_initial_environment (); |
| 1427 | /* AIX crashes are reported in system versions 3.2.3 and 3.2.4 |
| 1428 | if this is not done. Do it after set_global_environment so that we |
| 1429 | don't pollute Vglobal_environment. */ |
| 1430 | /* Setting LANG here will defeat the startup locale processing... */ |
| 1431 | #ifdef AIX |
| 1432 | putenv ("LANG=C"); |
| 1433 | #endif |
| 1434 | |
| 1435 | init_buffer (); /* Init default directory of main buffer. */ |
| 1436 | |
| 1437 | init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */ |
| 1438 | init_cmdargs (argc, argv, skip_args); /* Must precede init_lread. */ |
| 1439 | |
| 1440 | if (initialized) |
| 1441 | { |
| 1442 | /* Erase any pre-dump messages in the message log, to avoid confusion. */ |
| 1443 | Lisp_Object old_log_max; |
| 1444 | old_log_max = Vmessage_log_max; |
| 1445 | XSETFASTINT (Vmessage_log_max, 0); |
| 1446 | message_dolog ("", 0, 1, 0); |
| 1447 | Vmessage_log_max = old_log_max; |
| 1448 | } |
| 1449 | |
| 1450 | init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */ |
| 1451 | init_lread (); |
| 1452 | |
| 1453 | /* Intern the names of all standard functions and variables; |
| 1454 | define standard keys. */ |
| 1455 | |
| 1456 | if (!initialized) |
| 1457 | { |
| 1458 | /* The basic levels of Lisp must come first. Note that |
| 1459 | syms_of_data and some others have already been called. */ |
| 1460 | syms_of_chartab (); |
| 1461 | syms_of_lread (); |
| 1462 | syms_of_print (); |
| 1463 | syms_of_eval (); |
| 1464 | syms_of_fns (); |
| 1465 | syms_of_floatfns (); |
| 1466 | |
| 1467 | syms_of_buffer (); |
| 1468 | syms_of_bytecode (); |
| 1469 | syms_of_callint (); |
| 1470 | syms_of_casefiddle (); |
| 1471 | syms_of_casetab (); |
| 1472 | syms_of_category (); |
| 1473 | syms_of_ccl (); |
| 1474 | syms_of_character (); |
| 1475 | syms_of_cmds (); |
| 1476 | syms_of_dired (); |
| 1477 | syms_of_display (); |
| 1478 | syms_of_doc (); |
| 1479 | syms_of_editfns (); |
| 1480 | syms_of_emacs (); |
| 1481 | syms_of_filelock (); |
| 1482 | syms_of_indent (); |
| 1483 | syms_of_insdel (); |
| 1484 | /* syms_of_keymap (); */ |
| 1485 | syms_of_macros (); |
| 1486 | syms_of_marker (); |
| 1487 | syms_of_minibuf (); |
| 1488 | syms_of_process (); |
| 1489 | syms_of_search (); |
| 1490 | syms_of_frame (); |
| 1491 | syms_of_syntax (); |
| 1492 | syms_of_terminal (); |
| 1493 | syms_of_term (); |
| 1494 | syms_of_undo (); |
| 1495 | #ifdef HAVE_SOUND |
| 1496 | syms_of_sound (); |
| 1497 | #endif |
| 1498 | syms_of_textprop (); |
| 1499 | syms_of_composite (); |
| 1500 | #ifdef WINDOWSNT |
| 1501 | syms_of_ntproc (); |
| 1502 | #endif /* WINDOWSNT */ |
| 1503 | syms_of_window (); |
| 1504 | syms_of_xdisp (); |
| 1505 | syms_of_font (); |
| 1506 | #ifdef HAVE_WINDOW_SYSTEM |
| 1507 | syms_of_fringe (); |
| 1508 | syms_of_image (); |
| 1509 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 1510 | #ifdef HAVE_X_WINDOWS |
| 1511 | syms_of_xterm (); |
| 1512 | syms_of_xfns (); |
| 1513 | syms_of_xmenu (); |
| 1514 | syms_of_fontset (); |
| 1515 | syms_of_xsettings (); |
| 1516 | #ifdef HAVE_X_SM |
| 1517 | syms_of_xsmfns (); |
| 1518 | #endif |
| 1519 | #ifdef HAVE_X11 |
| 1520 | syms_of_xselect (); |
| 1521 | #endif |
| 1522 | #endif /* HAVE_X_WINDOWS */ |
| 1523 | |
| 1524 | #ifdef HAVE_LIBXML2 |
| 1525 | syms_of_xml (); |
| 1526 | #endif |
| 1527 | |
| 1528 | syms_of_menu (); |
| 1529 | |
| 1530 | #ifdef HAVE_NTGUI |
| 1531 | syms_of_w32term (); |
| 1532 | syms_of_w32fns (); |
| 1533 | syms_of_w32select (); |
| 1534 | syms_of_w32menu (); |
| 1535 | syms_of_fontset (); |
| 1536 | #endif /* HAVE_NTGUI */ |
| 1537 | |
| 1538 | #ifdef MSDOS |
| 1539 | syms_of_xmenu (); |
| 1540 | syms_of_dosfns(); |
| 1541 | syms_of_msdos(); |
| 1542 | syms_of_win16select(); |
| 1543 | #endif /* MSDOS */ |
| 1544 | |
| 1545 | #ifdef HAVE_NS |
| 1546 | syms_of_nsterm (); |
| 1547 | syms_of_nsfns (); |
| 1548 | syms_of_nsmenu (); |
| 1549 | syms_of_nsselect (); |
| 1550 | syms_of_fontset (); |
| 1551 | #endif /* HAVE_NS */ |
| 1552 | |
| 1553 | #ifdef HAVE_GNUTLS |
| 1554 | syms_of_gnutls (); |
| 1555 | #endif |
| 1556 | |
| 1557 | #ifdef HAVE_DBUS |
| 1558 | syms_of_dbusbind (); |
| 1559 | #endif /* HAVE_DBUS */ |
| 1560 | |
| 1561 | #ifdef WINDOWSNT |
| 1562 | syms_of_ntterm (); |
| 1563 | #endif /* WINDOWSNT */ |
| 1564 | |
| 1565 | keys_of_casefiddle (); |
| 1566 | keys_of_cmds (); |
| 1567 | keys_of_buffer (); |
| 1568 | keys_of_keyboard (); |
| 1569 | keys_of_keymap (); |
| 1570 | keys_of_window (); |
| 1571 | } |
| 1572 | else |
| 1573 | { |
| 1574 | /* Initialization that must be done even if the global variable |
| 1575 | initialized is non zero. */ |
| 1576 | #ifdef HAVE_NTGUI |
| 1577 | globals_of_w32fns (); |
| 1578 | globals_of_w32menu (); |
| 1579 | globals_of_w32select (); |
| 1580 | #endif /* HAVE_NTGUI */ |
| 1581 | } |
| 1582 | |
| 1583 | init_charset (); |
| 1584 | |
| 1585 | init_editfns (); /* init_process uses Voperating_system_release. */ |
| 1586 | init_process (); /* init_display uses add_keyboard_wait_descriptor. */ |
| 1587 | init_keyboard (); /* This too must precede init_sys_modes. */ |
| 1588 | if (!noninteractive) |
| 1589 | init_display (); /* Determine terminal type. Calls init_sys_modes. */ |
| 1590 | init_fns (); |
| 1591 | init_xdisp (); |
| 1592 | #ifdef HAVE_WINDOW_SYSTEM |
| 1593 | init_fringe (); |
| 1594 | init_image (); |
| 1595 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 1596 | init_macros (); |
| 1597 | init_floatfns (); |
| 1598 | #ifdef HAVE_SOUND |
| 1599 | init_sound (); |
| 1600 | #endif |
| 1601 | init_window (); |
| 1602 | init_font (); |
| 1603 | |
| 1604 | if (!initialized) |
| 1605 | { |
| 1606 | char *file; |
| 1607 | /* Handle -l loadup, args passed by Makefile. */ |
| 1608 | if (argmatch (argv, argc, "-l", "--load", 3, &file, &skip_args)) |
| 1609 | Vtop_level = Fcons (intern_c_string ("load"), |
| 1610 | Fcons (build_string (file), Qnil)); |
| 1611 | /* Unless next switch is -nl, load "loadup.el" first thing. */ |
| 1612 | if (! no_loadup) |
| 1613 | Vtop_level = Fcons (intern_c_string ("load"), |
| 1614 | Fcons (build_string ("loadup.el"), Qnil)); |
| 1615 | } |
| 1616 | |
| 1617 | if (initialized) |
| 1618 | { |
| 1619 | #ifdef HAVE_TZSET |
| 1620 | { |
| 1621 | /* If the execution TZ happens to be the same as the dump TZ, |
| 1622 | change it to some other value and then change it back, |
| 1623 | to force the underlying implementation to reload the TZ info. |
| 1624 | This is needed on implementations that load TZ info from files, |
| 1625 | since the TZ file contents may differ between dump and execution. */ |
| 1626 | char *tz = getenv ("TZ"); |
| 1627 | if (tz && !strcmp (tz, dump_tz)) |
| 1628 | { |
| 1629 | ++*tz; |
| 1630 | tzset (); |
| 1631 | --*tz; |
| 1632 | } |
| 1633 | } |
| 1634 | #endif |
| 1635 | } |
| 1636 | |
| 1637 | /* Set up for profiling. This is known to work on FreeBSD, |
| 1638 | GNU/Linux and MinGW. It might work on some other systems too. |
| 1639 | Give it a try and tell us if it works on your system. To compile |
| 1640 | for profiling, use the configure option --enable-profiling. */ |
| 1641 | #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__) |
| 1642 | #ifdef PROFILING |
| 1643 | if (initialized) |
| 1644 | { |
| 1645 | extern void _mcleanup (); |
| 1646 | #ifdef __MINGW32__ |
| 1647 | extern unsigned char etext asm ("etext"); |
| 1648 | #else |
| 1649 | extern char etext; |
| 1650 | #endif |
| 1651 | #ifdef HAVE___EXECUTABLE_START |
| 1652 | /* This symbol is defined by GNU ld to the start of the text |
| 1653 | segment. */ |
| 1654 | extern char __executable_start[]; |
| 1655 | #else |
| 1656 | extern void safe_bcopy (); |
| 1657 | #endif |
| 1658 | |
| 1659 | atexit (_mcleanup); |
| 1660 | #ifdef HAVE___EXECUTABLE_START |
| 1661 | monstartup (__executable_start, &etext); |
| 1662 | #else |
| 1663 | /* This uses safe_bcopy because that function comes first in the |
| 1664 | Emacs executable. It might be better to use something that |
| 1665 | gives the start of the text segment, but start_of_text is not |
| 1666 | defined on all systems now. */ |
| 1667 | /* FIXME: Does not work on architectures with function |
| 1668 | descriptors. */ |
| 1669 | monstartup (safe_bcopy, &etext); |
| 1670 | #endif |
| 1671 | } |
| 1672 | else |
| 1673 | moncontrol (0); |
| 1674 | #endif |
| 1675 | #endif |
| 1676 | |
| 1677 | initialized = 1; |
| 1678 | |
| 1679 | #ifdef LOCALTIME_CACHE |
| 1680 | /* Some versions of localtime have a bug. They cache the value of the time |
| 1681 | zone rather than looking it up every time. Since localtime() is |
| 1682 | called to bolt the undumping time into the undumped emacs, this |
| 1683 | results in localtime ignoring the TZ environment variable. |
| 1684 | This flushes the new TZ value into localtime. */ |
| 1685 | tzset (); |
| 1686 | #endif /* defined (LOCALTIME_CACHE) */ |
| 1687 | |
| 1688 | /* Enter editor command loop. This never returns. */ |
| 1689 | Frecursive_edit (); |
| 1690 | /* NOTREACHED */ |
| 1691 | return 0; |
| 1692 | } |
| 1693 | \f |
| 1694 | /* Sort the args so we can find the most important ones |
| 1695 | at the beginning of argv. */ |
| 1696 | |
| 1697 | /* First, here's a table of all the standard options. */ |
| 1698 | |
| 1699 | struct standard_args |
| 1700 | { |
| 1701 | const char *name; |
| 1702 | const char *longname; |
| 1703 | int priority; |
| 1704 | int nargs; |
| 1705 | }; |
| 1706 | |
| 1707 | static const struct standard_args standard_args[] = |
| 1708 | { |
| 1709 | { "-version", "--version", 150, 0 }, |
| 1710 | { "-chdir", "--chdir", 130, 1 }, |
| 1711 | { "-t", "--terminal", 120, 1 }, |
| 1712 | { "-nw", "--no-window-system", 110, 0 }, |
| 1713 | { "-nw", "--no-windows", 110, 0 }, |
| 1714 | { "-batch", "--batch", 100, 0 }, |
| 1715 | { "-script", "--script", 100, 1 }, |
| 1716 | { "-daemon", "--daemon", 99, 0 }, |
| 1717 | { "-help", "--help", 90, 0 }, |
| 1718 | { "-nl", "--no-loadup", 70, 0 }, |
| 1719 | { "-nsl", "--no-site-lisp", 65, 0 }, |
| 1720 | /* -d must come last before the options handled in startup.el. */ |
| 1721 | { "-d", "--display", 60, 1 }, |
| 1722 | { "-display", 0, 60, 1 }, |
| 1723 | /* Now for the options handled in `command-line' (startup.el). */ |
| 1724 | /* (Note that to imply -nsl, -Q is partially handled here.) */ |
| 1725 | { "-Q", "--quick", 55, 0 }, |
| 1726 | { "-quick", 0, 55, 0 }, |
| 1727 | { "-q", "--no-init-file", 50, 0 }, |
| 1728 | { "-no-init-file", 0, 50, 0 }, |
| 1729 | { "-no-site-file", "--no-site-file", 40, 0 }, |
| 1730 | { "-u", "--user", 30, 1 }, |
| 1731 | { "-user", 0, 30, 1 }, |
| 1732 | { "-debug-init", "--debug-init", 20, 0 }, |
| 1733 | { "-iconic", "--iconic", 15, 0 }, |
| 1734 | { "-D", "--basic-display", 12, 0}, |
| 1735 | { "-basic-display", 0, 12, 0}, |
| 1736 | { "-nbc", "--no-blinking-cursor", 12, 0 }, |
| 1737 | /* Now for the options handled in `command-line-1' (startup.el). */ |
| 1738 | { "-nbi", "--no-bitmap-icon", 10, 0 }, |
| 1739 | { "-bg", "--background-color", 10, 1 }, |
| 1740 | { "-background", 0, 10, 1 }, |
| 1741 | { "-fg", "--foreground-color", 10, 1 }, |
| 1742 | { "-foreground", 0, 10, 1 }, |
| 1743 | { "-bd", "--border-color", 10, 1 }, |
| 1744 | { "-bw", "--border-width", 10, 1 }, |
| 1745 | { "-ib", "--internal-border", 10, 1 }, |
| 1746 | { "-ms", "--mouse-color", 10, 1 }, |
| 1747 | { "-cr", "--cursor-color", 10, 1 }, |
| 1748 | { "-fn", "--font", 10, 1 }, |
| 1749 | { "-font", 0, 10, 1 }, |
| 1750 | { "-fs", "--fullscreen", 10, 0 }, |
| 1751 | { "-fw", "--fullwidth", 10, 0 }, |
| 1752 | { "-fh", "--fullheight", 10, 0 }, |
| 1753 | { "-mm", "--maximized", 10, 0 }, |
| 1754 | { "-g", "--geometry", 10, 1 }, |
| 1755 | { "-geometry", 0, 10, 1 }, |
| 1756 | { "-T", "--title", 10, 1 }, |
| 1757 | { "-title", 0, 10, 1 }, |
| 1758 | { "-name", "--name", 10, 1 }, |
| 1759 | { "-xrm", "--xrm", 10, 1 }, |
| 1760 | { "-parent-id", "--parent-id", 10, 1 }, |
| 1761 | { "-r", "--reverse-video", 5, 0 }, |
| 1762 | { "-rv", 0, 5, 0 }, |
| 1763 | { "-reverse", 0, 5, 0 }, |
| 1764 | { "-hb", "--horizontal-scroll-bars", 5, 0 }, |
| 1765 | { "-vb", "--vertical-scroll-bars", 5, 0 }, |
| 1766 | { "-color", "--color", 5, 0}, |
| 1767 | { "-no-splash", "--no-splash", 3, 0 }, |
| 1768 | { "-no-desktop", "--no-desktop", 3, 0 }, |
| 1769 | #ifdef HAVE_NS |
| 1770 | { "-NSAutoLaunch", 0, 5, 1 }, |
| 1771 | { "-NXAutoLaunch", 0, 5, 1 }, |
| 1772 | { "-disable-font-backend", "--disable-font-backend", 65, 0 }, |
| 1773 | { "-_NSMachLaunch", 0, 85, 1 }, |
| 1774 | { "-MachLaunch", 0, 85, 1 }, |
| 1775 | { "-macosx", 0, 85, 0 }, |
| 1776 | { "-NSHost", 0, 85, 1 }, |
| 1777 | #endif |
| 1778 | /* These have the same priority as ordinary file name args, |
| 1779 | so they are not reordered with respect to those. */ |
| 1780 | { "-L", "--directory", 0, 1 }, |
| 1781 | { "-directory", 0, 0, 1 }, |
| 1782 | { "-l", "--load", 0, 1 }, |
| 1783 | { "-load", 0, 0, 1 }, |
| 1784 | /* This has no longname, because using --scriptload confuses sort_args, |
| 1785 | because then the --script long option seems to match twice; ie |
| 1786 | you can't have a long option which is a prefix of another long |
| 1787 | option. In any case, this is entirely an internal option. */ |
| 1788 | { "-scriptload", NULL, 0, 1 }, |
| 1789 | { "-f", "--funcall", 0, 1 }, |
| 1790 | { "-funcall", 0, 0, 1 }, |
| 1791 | { "-eval", "--eval", 0, 1 }, |
| 1792 | { "-execute", "--execute", 0, 1 }, |
| 1793 | { "-find-file", "--find-file", 0, 1 }, |
| 1794 | { "-visit", "--visit", 0, 1 }, |
| 1795 | { "-file", "--file", 0, 1 }, |
| 1796 | { "-insert", "--insert", 0, 1 }, |
| 1797 | #ifdef HAVE_NS |
| 1798 | { "-NXOpen", 0, 0, 1 }, |
| 1799 | { "-NXOpenTemp", 0, 0, 1 }, |
| 1800 | { "-NSOpen", 0, 0, 1 }, |
| 1801 | { "-NSOpenTemp", 0, 0, 1 }, |
| 1802 | { "-GSFilePath", 0, 0, 1 }, |
| 1803 | #endif |
| 1804 | /* This should be processed after ordinary file name args and the like. */ |
| 1805 | { "-kill", "--kill", -10, 0 }, |
| 1806 | }; |
| 1807 | |
| 1808 | /* Reorder the elements of ARGV (assumed to have ARGC elements) |
| 1809 | so that the highest priority ones come first. |
| 1810 | Do not change the order of elements of equal priority. |
| 1811 | If an option takes an argument, keep it and its argument together. |
| 1812 | |
| 1813 | If an option that takes no argument appears more |
| 1814 | than once, eliminate all but one copy of it. */ |
| 1815 | |
| 1816 | static void |
| 1817 | sort_args (int argc, char **argv) |
| 1818 | { |
| 1819 | char **new = (char **) xmalloc (sizeof (char *) * argc); |
| 1820 | /* For each element of argv, |
| 1821 | the corresponding element of options is: |
| 1822 | 0 for an option that takes no arguments, |
| 1823 | 1 for an option that takes one argument, etc. |
| 1824 | -1 for an ordinary non-option argument. */ |
| 1825 | int *options = (int *) xmalloc (sizeof (int) * argc); |
| 1826 | int *priority = (int *) xmalloc (sizeof (int) * argc); |
| 1827 | int to = 1; |
| 1828 | int incoming_used = 1; |
| 1829 | int from; |
| 1830 | int i; |
| 1831 | |
| 1832 | /* Categorize all the options, |
| 1833 | and figure out which argv elts are option arguments. */ |
| 1834 | for (from = 1; from < argc; from++) |
| 1835 | { |
| 1836 | options[from] = -1; |
| 1837 | priority[from] = 0; |
| 1838 | if (argv[from][0] == '-') |
| 1839 | { |
| 1840 | int match, thislen; |
| 1841 | char *equals; |
| 1842 | |
| 1843 | /* If we have found "--", don't consider |
| 1844 | any more arguments as options. */ |
| 1845 | if (argv[from][1] == '-' && argv[from][2] == 0) |
| 1846 | { |
| 1847 | /* Leave the "--", and everything following it, at the end. */ |
| 1848 | for (; from < argc; from++) |
| 1849 | { |
| 1850 | priority[from] = -100; |
| 1851 | options[from] = -1; |
| 1852 | } |
| 1853 | break; |
| 1854 | } |
| 1855 | |
| 1856 | /* Look for a match with a known old-fashioned option. */ |
| 1857 | for (i = 0; i < sizeof (standard_args) / sizeof (standard_args[0]); i++) |
| 1858 | if (!strcmp (argv[from], standard_args[i].name)) |
| 1859 | { |
| 1860 | options[from] = standard_args[i].nargs; |
| 1861 | priority[from] = standard_args[i].priority; |
| 1862 | if (from + standard_args[i].nargs >= argc) |
| 1863 | fatal ("Option `%s' requires an argument\n", argv[from]); |
| 1864 | from += standard_args[i].nargs; |
| 1865 | goto done; |
| 1866 | } |
| 1867 | |
| 1868 | /* Look for a match with a known long option. |
| 1869 | MATCH is -1 if no match so far, -2 if two or more matches so far, |
| 1870 | >= 0 (the table index of the match) if just one match so far. */ |
| 1871 | if (argv[from][1] == '-') |
| 1872 | { |
| 1873 | match = -1; |
| 1874 | thislen = strlen (argv[from]); |
| 1875 | equals = strchr (argv[from], '='); |
| 1876 | if (equals != 0) |
| 1877 | thislen = equals - argv[from]; |
| 1878 | |
| 1879 | for (i = 0; |
| 1880 | i < sizeof (standard_args) / sizeof (standard_args[0]); i++) |
| 1881 | if (standard_args[i].longname |
| 1882 | && !strncmp (argv[from], standard_args[i].longname, |
| 1883 | thislen)) |
| 1884 | { |
| 1885 | if (match == -1) |
| 1886 | match = i; |
| 1887 | else |
| 1888 | match = -2; |
| 1889 | } |
| 1890 | |
| 1891 | /* If we found exactly one match, use that. */ |
| 1892 | if (match >= 0) |
| 1893 | { |
| 1894 | options[from] = standard_args[match].nargs; |
| 1895 | priority[from] = standard_args[match].priority; |
| 1896 | /* If --OPTION=VALUE syntax is used, |
| 1897 | this option uses just one argv element. */ |
| 1898 | if (equals != 0) |
| 1899 | options[from] = 0; |
| 1900 | if (from + options[from] >= argc) |
| 1901 | fatal ("Option `%s' requires an argument\n", argv[from]); |
| 1902 | from += options[from]; |
| 1903 | } |
| 1904 | /* FIXME When match < 0, shouldn't there be some error, |
| 1905 | or at least indication to the user that there was a |
| 1906 | problem? */ |
| 1907 | } |
| 1908 | done: ; |
| 1909 | } |
| 1910 | } |
| 1911 | |
| 1912 | /* Copy the arguments, in order of decreasing priority, to NEW. */ |
| 1913 | new[0] = argv[0]; |
| 1914 | while (incoming_used < argc) |
| 1915 | { |
| 1916 | int best = -1; |
| 1917 | int best_priority = -9999; |
| 1918 | |
| 1919 | /* Find the highest priority remaining option. |
| 1920 | If several have equal priority, take the first of them. */ |
| 1921 | for (from = 1; from < argc; from++) |
| 1922 | { |
| 1923 | if (argv[from] != 0 && priority[from] > best_priority) |
| 1924 | { |
| 1925 | best_priority = priority[from]; |
| 1926 | best = from; |
| 1927 | } |
| 1928 | /* Skip option arguments--they are tied to the options. */ |
| 1929 | if (options[from] > 0) |
| 1930 | from += options[from]; |
| 1931 | } |
| 1932 | |
| 1933 | if (best < 0) |
| 1934 | abort (); |
| 1935 | |
| 1936 | /* Copy the highest priority remaining option, with its args, to NEW. |
| 1937 | Unless it is a duplicate of the previous one. */ |
| 1938 | if (! (options[best] == 0 |
| 1939 | && ! strcmp (new[to - 1], argv[best]))) |
| 1940 | { |
| 1941 | new[to++] = argv[best]; |
| 1942 | for (i = 0; i < options[best]; i++) |
| 1943 | new[to++] = argv[best + i + 1]; |
| 1944 | } |
| 1945 | |
| 1946 | incoming_used += 1 + (options[best] > 0 ? options[best] : 0); |
| 1947 | |
| 1948 | /* Clear out this option in ARGV. */ |
| 1949 | argv[best] = 0; |
| 1950 | for (i = 0; i < options[best]; i++) |
| 1951 | argv[best + i + 1] = 0; |
| 1952 | } |
| 1953 | |
| 1954 | /* If duplicate options were deleted, fill up extra space with null ptrs. */ |
| 1955 | while (to < argc) |
| 1956 | new[to++] = 0; |
| 1957 | |
| 1958 | memcpy (argv, new, sizeof (char *) * argc); |
| 1959 | |
| 1960 | xfree (options); |
| 1961 | xfree (new); |
| 1962 | xfree (priority); |
| 1963 | } |
| 1964 | \f |
| 1965 | DEFUN ("kill-emacs", Fkill_emacs, Skill_emacs, 0, 1, "P", |
| 1966 | doc: /* Exit the Emacs job and kill it. |
| 1967 | If ARG is an integer, return ARG as the exit program code. |
| 1968 | If ARG is a string, stuff it as keyboard input. |
| 1969 | |
| 1970 | This function is called upon receipt of the signals SIGTERM |
| 1971 | or SIGHUP, and upon SIGINT in batch mode. |
| 1972 | |
| 1973 | The value of `kill-emacs-hook', if not void, |
| 1974 | is a list of functions (of no args), |
| 1975 | all of which are called before Emacs is actually killed. */) |
| 1976 | (Lisp_Object arg) |
| 1977 | { |
| 1978 | struct gcpro gcpro1; |
| 1979 | Lisp_Object hook; |
| 1980 | |
| 1981 | GCPRO1 (arg); |
| 1982 | |
| 1983 | if (feof (stdin)) |
| 1984 | arg = Qt; |
| 1985 | |
| 1986 | hook = intern ("kill-emacs-hook"); |
| 1987 | Frun_hooks (1, &hook); |
| 1988 | |
| 1989 | UNGCPRO; |
| 1990 | |
| 1991 | shut_down_emacs (0, 0, STRINGP (arg) ? arg : Qnil); |
| 1992 | |
| 1993 | /* If we have an auto-save list file, |
| 1994 | kill it because we are exiting Emacs deliberately (not crashing). |
| 1995 | Do it after shut_down_emacs, which does an auto-save. */ |
| 1996 | if (STRINGP (Vauto_save_list_file_name)) |
| 1997 | unlink (SSDATA (Vauto_save_list_file_name)); |
| 1998 | |
| 1999 | exit (INTEGERP (arg) ? XINT (arg) : EXIT_SUCCESS); |
| 2000 | } |
| 2001 | |
| 2002 | |
| 2003 | /* Perform an orderly shutdown of Emacs. Autosave any modified |
| 2004 | buffers, kill any child processes, clean up the terminal modes (if |
| 2005 | we're in the foreground), and other stuff like that. Don't perform |
| 2006 | any redisplay; this may be called when Emacs is shutting down in |
| 2007 | the background, or after its X connection has died. |
| 2008 | |
| 2009 | If SIG is a signal number, print a message for it. |
| 2010 | |
| 2011 | This is called by fatal signal handlers, X protocol error handlers, |
| 2012 | and Fkill_emacs. */ |
| 2013 | |
| 2014 | void |
| 2015 | shut_down_emacs (int sig, int no_x, Lisp_Object stuff) |
| 2016 | { |
| 2017 | /* Prevent running of hooks from now on. */ |
| 2018 | Vrun_hooks = Qnil; |
| 2019 | |
| 2020 | /* Don't update display from now on. */ |
| 2021 | Vinhibit_redisplay = Qt; |
| 2022 | |
| 2023 | /* If we are controlling the terminal, reset terminal modes. */ |
| 2024 | #ifndef DOS_NT |
| 2025 | { |
| 2026 | int pgrp = EMACS_GETPGRP (0); |
| 2027 | int tpgrp = tcgetpgrp (0); |
| 2028 | if ((tpgrp != -1) && tpgrp == pgrp) |
| 2029 | { |
| 2030 | reset_all_sys_modes (); |
| 2031 | if (sig && sig != SIGTERM) |
| 2032 | fprintf (stderr, "Fatal error (%d)", sig); |
| 2033 | } |
| 2034 | } |
| 2035 | #else |
| 2036 | fflush (stdout); |
| 2037 | reset_all_sys_modes (); |
| 2038 | #endif |
| 2039 | |
| 2040 | stuff_buffered_input (stuff); |
| 2041 | |
| 2042 | inhibit_sentinels = 1; |
| 2043 | kill_buffer_processes (Qnil); |
| 2044 | Fdo_auto_save (Qt, Qnil); |
| 2045 | |
| 2046 | #ifdef CLASH_DETECTION |
| 2047 | unlock_all_files (); |
| 2048 | #endif |
| 2049 | |
| 2050 | #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */ |
| 2051 | #ifdef HAVE_X_WINDOWS |
| 2052 | /* It's not safe to call intern here. Maybe we are crashing. */ |
| 2053 | if (!noninteractive && SYMBOLP (Vinitial_window_system) |
| 2054 | && SCHARS (SYMBOL_NAME (Vinitial_window_system)) == 1 |
| 2055 | && SREF (SYMBOL_NAME (Vinitial_window_system), 0) == 'x' |
| 2056 | && ! no_x) |
| 2057 | Fx_close_current_connection (); |
| 2058 | #endif /* HAVE_X_WINDOWS */ |
| 2059 | #endif |
| 2060 | |
| 2061 | #ifdef SIGIO |
| 2062 | /* There is a tendency for a SIGIO signal to arrive within exit, |
| 2063 | and cause a SIGHUP because the input descriptor is already closed. */ |
| 2064 | unrequest_sigio (); |
| 2065 | signal (SIGIO, SIG_IGN); |
| 2066 | #endif |
| 2067 | |
| 2068 | #ifdef WINDOWSNT |
| 2069 | term_ntproc (); |
| 2070 | #endif |
| 2071 | |
| 2072 | /* Do this only if terminating normally, we want glyph matrices |
| 2073 | etc. in a core dump. */ |
| 2074 | if (sig == 0 || sig == SIGTERM) |
| 2075 | { |
| 2076 | check_glyph_memory (); |
| 2077 | check_message_stack (); |
| 2078 | } |
| 2079 | |
| 2080 | #ifdef MSDOS |
| 2081 | dos_cleanup (); |
| 2082 | #endif |
| 2083 | |
| 2084 | #ifdef HAVE_NS |
| 2085 | ns_term_shutdown (sig); |
| 2086 | #endif |
| 2087 | } |
| 2088 | |
| 2089 | |
| 2090 | \f |
| 2091 | #ifndef CANNOT_DUMP |
| 2092 | |
| 2093 | #include "unexec.h" |
| 2094 | |
| 2095 | DEFUN ("dump-emacs", Fdump_emacs, Sdump_emacs, 2, 2, 0, |
| 2096 | doc: /* Dump current state of Emacs into executable file FILENAME. |
| 2097 | Take symbols from SYMFILE (presumably the file you executed to run Emacs). |
| 2098 | This is used in the file `loadup.el' when building Emacs. |
| 2099 | |
| 2100 | You must run Emacs in batch mode in order to dump it. */) |
| 2101 | (Lisp_Object filename, Lisp_Object symfile) |
| 2102 | { |
| 2103 | extern char my_edata[]; |
| 2104 | Lisp_Object tem; |
| 2105 | Lisp_Object symbol; |
| 2106 | int count = SPECPDL_INDEX (); |
| 2107 | |
| 2108 | check_pure_size (); |
| 2109 | |
| 2110 | if (! noninteractive) |
| 2111 | error ("Dumping Emacs works only in batch mode"); |
| 2112 | |
| 2113 | #ifdef GNU_LINUX |
| 2114 | if (heap_bss_diff > MAX_HEAP_BSS_DIFF) |
| 2115 | { |
| 2116 | fprintf (stderr, "**************************************************\n"); |
| 2117 | fprintf (stderr, "Warning: Your system has a gap between BSS and the\n"); |
| 2118 | fprintf (stderr, "heap (%lu bytes). This usually means that exec-shield\n", |
| 2119 | heap_bss_diff); |
| 2120 | fprintf (stderr, "or something similar is in effect. The dump may\n"); |
| 2121 | fprintf (stderr, "fail because of this. See the section about\n"); |
| 2122 | fprintf (stderr, "exec-shield in etc/PROBLEMS for more information.\n"); |
| 2123 | fprintf (stderr, "**************************************************\n"); |
| 2124 | } |
| 2125 | #endif /* GNU_LINUX */ |
| 2126 | |
| 2127 | /* Bind `command-line-processed' to nil before dumping, |
| 2128 | so that the dumped Emacs will process its command line |
| 2129 | and set up to work with X windows if appropriate. */ |
| 2130 | symbol = intern ("command-line-processed"); |
| 2131 | specbind (symbol, Qnil); |
| 2132 | |
| 2133 | CHECK_STRING (filename); |
| 2134 | filename = Fexpand_file_name (filename, Qnil); |
| 2135 | if (!NILP (symfile)) |
| 2136 | { |
| 2137 | CHECK_STRING (symfile); |
| 2138 | if (SCHARS (symfile)) |
| 2139 | symfile = Fexpand_file_name (symfile, Qnil); |
| 2140 | } |
| 2141 | |
| 2142 | tem = Vpurify_flag; |
| 2143 | Vpurify_flag = Qnil; |
| 2144 | |
| 2145 | #ifdef HAVE_TZSET |
| 2146 | set_time_zone_rule (dump_tz); |
| 2147 | #ifndef LOCALTIME_CACHE |
| 2148 | /* Force a tz reload, since set_time_zone_rule doesn't. */ |
| 2149 | tzset (); |
| 2150 | #endif |
| 2151 | #endif |
| 2152 | |
| 2153 | fflush (stdout); |
| 2154 | /* Tell malloc where start of impure now is. */ |
| 2155 | /* Also arrange for warnings when nearly out of space. */ |
| 2156 | #ifndef SYSTEM_MALLOC |
| 2157 | #ifndef WINDOWSNT |
| 2158 | /* On Windows, this was done before dumping, and that once suffices. |
| 2159 | Meanwhile, my_edata is not valid on Windows. */ |
| 2160 | memory_warnings (my_edata, malloc_warning); |
| 2161 | #endif /* not WINDOWSNT */ |
| 2162 | #if defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT |
| 2163 | /* Pthread may call malloc before main, and then we will get an endless |
| 2164 | loop, because pthread_self (see alloc.c) calls malloc the first time |
| 2165 | it is called on some systems. */ |
| 2166 | reset_malloc_hooks (); |
| 2167 | #endif |
| 2168 | #endif /* not SYSTEM_MALLOC */ |
| 2169 | #ifdef DOUG_LEA_MALLOC |
| 2170 | malloc_state_ptr = malloc_get_state (); |
| 2171 | #endif |
| 2172 | |
| 2173 | #ifdef USE_MMAP_FOR_BUFFERS |
| 2174 | mmap_set_vars (0); |
| 2175 | #endif |
| 2176 | unexec (SSDATA (filename), !NILP (symfile) ? SSDATA (symfile) : 0); |
| 2177 | #ifdef USE_MMAP_FOR_BUFFERS |
| 2178 | mmap_set_vars (1); |
| 2179 | #endif |
| 2180 | #ifdef DOUG_LEA_MALLOC |
| 2181 | free (malloc_state_ptr); |
| 2182 | #endif |
| 2183 | |
| 2184 | Vpurify_flag = tem; |
| 2185 | |
| 2186 | return unbind_to (count, Qnil); |
| 2187 | } |
| 2188 | |
| 2189 | #endif /* not CANNOT_DUMP */ |
| 2190 | \f |
| 2191 | #if HAVE_SETLOCALE |
| 2192 | /* Recover from setlocale (LC_ALL, ""). */ |
| 2193 | void |
| 2194 | fixup_locale (void) |
| 2195 | { |
| 2196 | /* The Emacs Lisp reader needs LC_NUMERIC to be "C", |
| 2197 | so that numbers are read and printed properly for Emacs Lisp. */ |
| 2198 | setlocale (LC_NUMERIC, "C"); |
| 2199 | } |
| 2200 | |
| 2201 | /* Set system locale CATEGORY, with previous locale *PLOCALE, to |
| 2202 | DESIRED_LOCALE. */ |
| 2203 | static void |
| 2204 | synchronize_locale (int category, Lisp_Object *plocale, Lisp_Object desired_locale) |
| 2205 | { |
| 2206 | if (! EQ (*plocale, desired_locale)) |
| 2207 | { |
| 2208 | *plocale = desired_locale; |
| 2209 | setlocale (category, (STRINGP (desired_locale) |
| 2210 | ? SSDATA (desired_locale) |
| 2211 | : "")); |
| 2212 | } |
| 2213 | } |
| 2214 | |
| 2215 | /* Set system time locale to match Vsystem_time_locale, if possible. */ |
| 2216 | void |
| 2217 | synchronize_system_time_locale (void) |
| 2218 | { |
| 2219 | synchronize_locale (LC_TIME, &Vprevious_system_time_locale, |
| 2220 | Vsystem_time_locale); |
| 2221 | } |
| 2222 | |
| 2223 | /* Set system messages locale to match Vsystem_messages_locale, if |
| 2224 | possible. */ |
| 2225 | void |
| 2226 | synchronize_system_messages_locale (void) |
| 2227 | { |
| 2228 | #ifdef LC_MESSAGES |
| 2229 | synchronize_locale (LC_MESSAGES, &Vprevious_system_messages_locale, |
| 2230 | Vsystem_messages_locale); |
| 2231 | #endif |
| 2232 | } |
| 2233 | #endif /* HAVE_SETLOCALE */ |
| 2234 | \f |
| 2235 | #ifndef SEPCHAR |
| 2236 | #define SEPCHAR ':' |
| 2237 | #endif |
| 2238 | |
| 2239 | Lisp_Object |
| 2240 | decode_env_path (const char *evarname, const char *defalt) |
| 2241 | { |
| 2242 | const char *path, *p; |
| 2243 | Lisp_Object lpath, element, tem; |
| 2244 | |
| 2245 | /* It's okay to use getenv here, because this function is only used |
| 2246 | to initialize variables when Emacs starts up, and isn't called |
| 2247 | after that. */ |
| 2248 | if (evarname != 0) |
| 2249 | path = getenv (evarname); |
| 2250 | else |
| 2251 | path = 0; |
| 2252 | if (!path) |
| 2253 | path = defalt; |
| 2254 | #ifdef DOS_NT |
| 2255 | /* Ensure values from the environment use the proper directory separator. */ |
| 2256 | if (path) |
| 2257 | { |
| 2258 | char *path_copy = alloca (strlen (path) + 1); |
| 2259 | strcpy (path_copy, path); |
| 2260 | dostounix_filename (path_copy); |
| 2261 | path = path_copy; |
| 2262 | } |
| 2263 | #endif |
| 2264 | lpath = Qnil; |
| 2265 | while (1) |
| 2266 | { |
| 2267 | p = strchr (path, SEPCHAR); |
| 2268 | if (!p) |
| 2269 | p = path + strlen (path); |
| 2270 | element = (p - path ? make_string (path, p - path) |
| 2271 | : build_string (".")); |
| 2272 | |
| 2273 | /* Add /: to the front of the name |
| 2274 | if it would otherwise be treated as magic. */ |
| 2275 | tem = Ffind_file_name_handler (element, Qt); |
| 2276 | |
| 2277 | /* However, if the handler says "I'm safe", |
| 2278 | don't bother adding /:. */ |
| 2279 | if (SYMBOLP (tem)) |
| 2280 | { |
| 2281 | Lisp_Object prop; |
| 2282 | prop = Fget (tem, intern ("safe-magic")); |
| 2283 | if (! NILP (prop)) |
| 2284 | tem = Qnil; |
| 2285 | } |
| 2286 | |
| 2287 | if (! NILP (tem)) |
| 2288 | element = concat2 (build_string ("/:"), element); |
| 2289 | |
| 2290 | lpath = Fcons (element, lpath); |
| 2291 | if (*p) |
| 2292 | path = p + 1; |
| 2293 | else |
| 2294 | break; |
| 2295 | } |
| 2296 | return Fnreverse (lpath); |
| 2297 | } |
| 2298 | |
| 2299 | DEFUN ("daemonp", Fdaemonp, Sdaemonp, 0, 0, 0, |
| 2300 | doc: /* Return non-nil if the current emacs process is a daemon. |
| 2301 | If the daemon was given a name argument, return that name. */) |
| 2302 | (void) |
| 2303 | { |
| 2304 | if (IS_DAEMON) |
| 2305 | if (daemon_name) |
| 2306 | return build_string (daemon_name); |
| 2307 | else |
| 2308 | return Qt; |
| 2309 | else |
| 2310 | return Qnil; |
| 2311 | } |
| 2312 | |
| 2313 | DEFUN ("daemon-initialized", Fdaemon_initialized, Sdaemon_initialized, 0, 0, 0, |
| 2314 | doc: /* Mark the Emacs daemon as being initialized. |
| 2315 | This finishes the daemonization process by doing the other half of detaching |
| 2316 | from the parent process and its tty file descriptors. */) |
| 2317 | (void) |
| 2318 | { |
| 2319 | int nfd; |
| 2320 | int err = 0; |
| 2321 | |
| 2322 | if (!IS_DAEMON) |
| 2323 | error ("This function can only be called if emacs is run as a daemon"); |
| 2324 | |
| 2325 | if (daemon_pipe[1] < 0) |
| 2326 | error ("The daemon has already been initialized"); |
| 2327 | |
| 2328 | if (NILP (Vafter_init_time)) |
| 2329 | error ("This function can only be called after loading the init files"); |
| 2330 | |
| 2331 | /* Get rid of stdin, stdout and stderr. */ |
| 2332 | nfd = open ("/dev/null", O_RDWR); |
| 2333 | err |= nfd < 0; |
| 2334 | err |= dup2 (nfd, 0) < 0; |
| 2335 | err |= dup2 (nfd, 1) < 0; |
| 2336 | err |= dup2 (nfd, 2) < 0; |
| 2337 | err |= close (nfd) != 0; |
| 2338 | |
| 2339 | /* Closing the pipe will notify the parent that it can exit. |
| 2340 | FIXME: In case some other process inherited the pipe, closing it here |
| 2341 | won't notify the parent because it's still open elsewhere, so we |
| 2342 | additionally send a byte, just to make sure the parent really exits. |
| 2343 | Instead, we should probably close the pipe in start-process and |
| 2344 | call-process to make sure the pipe is never inherited by |
| 2345 | subprocesses. */ |
| 2346 | err |= write (daemon_pipe[1], "\n", 1) < 0; |
| 2347 | err |= close (daemon_pipe[1]) != 0; |
| 2348 | /* Set it to an invalid value so we know we've already run this function. */ |
| 2349 | daemon_pipe[1] = -1; |
| 2350 | |
| 2351 | if (err) |
| 2352 | error ("I/O error during daemon initialization"); |
| 2353 | return Qt; |
| 2354 | } |
| 2355 | |
| 2356 | void |
| 2357 | syms_of_emacs (void) |
| 2358 | { |
| 2359 | Qfile_name_handler_alist = intern_c_string ("file-name-handler-alist"); |
| 2360 | staticpro (&Qfile_name_handler_alist); |
| 2361 | Qrisky_local_variable = intern_c_string ("risky-local-variable"); |
| 2362 | staticpro (&Qrisky_local_variable); |
| 2363 | |
| 2364 | #ifndef CANNOT_DUMP |
| 2365 | defsubr (&Sdump_emacs); |
| 2366 | #endif |
| 2367 | |
| 2368 | defsubr (&Skill_emacs); |
| 2369 | |
| 2370 | defsubr (&Sinvocation_name); |
| 2371 | defsubr (&Sinvocation_directory); |
| 2372 | defsubr (&Sdaemonp); |
| 2373 | defsubr (&Sdaemon_initialized); |
| 2374 | |
| 2375 | DEFVAR_LISP ("command-line-args", Vcommand_line_args, |
| 2376 | doc: /* Args passed by shell to Emacs, as a list of strings. |
| 2377 | Many arguments are deleted from the list as they are processed. */); |
| 2378 | |
| 2379 | DEFVAR_LISP ("system-type", Vsystem_type, |
| 2380 | doc: /* The value is a symbol indicating the type of operating system you are using. |
| 2381 | Special values: |
| 2382 | `gnu' compiled for a GNU Hurd system. |
| 2383 | `gnu/linux' compiled for a GNU/Linux system. |
| 2384 | `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel. |
| 2385 | `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...). |
| 2386 | `ms-dos' compiled as an MS-DOS application. |
| 2387 | `windows-nt' compiled as a native W32 application. |
| 2388 | `cygwin' compiled using the Cygwin library. |
| 2389 | Anything else (in Emacs 24.1, the possibilities are: aix, berkeley-unix, |
| 2390 | hpux, irix, usg-unix-v) indicates some sort of Unix system. */); |
| 2391 | Vsystem_type = intern_c_string (SYSTEM_TYPE); |
| 2392 | /* The above values are from SYSTEM_TYPE in include files under src/s. */ |
| 2393 | |
| 2394 | DEFVAR_LISP ("system-configuration", Vsystem_configuration, |
| 2395 | doc: /* Value is string indicating configuration Emacs was built for. |
| 2396 | On MS-Windows, the value reflects the OS flavor and version on which |
| 2397 | Emacs is running. */); |
| 2398 | Vsystem_configuration = build_string (EMACS_CONFIGURATION); |
| 2399 | |
| 2400 | DEFVAR_LISP ("system-configuration-options", Vsystem_configuration_options, |
| 2401 | doc: /* String containing the configuration options Emacs was built with. */); |
| 2402 | Vsystem_configuration_options = build_string (EMACS_CONFIG_OPTIONS); |
| 2403 | |
| 2404 | DEFVAR_BOOL ("noninteractive", noninteractive1, |
| 2405 | doc: /* Non-nil means Emacs is running without interactive terminal. */); |
| 2406 | |
| 2407 | DEFVAR_LISP ("kill-emacs-hook", Vkill_emacs_hook, |
| 2408 | doc: /* Hook to be run when `kill-emacs' is called. |
| 2409 | Since `kill-emacs' may be invoked when the terminal is disconnected (or |
| 2410 | in other similar situations), functions placed on this hook should not |
| 2411 | expect to be able to interact with the user. To ask for confirmation, |
| 2412 | see `kill-emacs-query-functions' instead. |
| 2413 | |
| 2414 | Before Emacs 24.1, the hook was not run in batch mode, i.e., if |
| 2415 | `noninteractive' was non-nil. */); |
| 2416 | Vkill_emacs_hook = Qnil; |
| 2417 | |
| 2418 | DEFVAR_LISP ("path-separator", Vpath_separator, |
| 2419 | doc: /* String containing the character that separates directories in |
| 2420 | search paths, such as PATH and other similar environment variables. */); |
| 2421 | { |
| 2422 | char c = SEPCHAR; |
| 2423 | Vpath_separator = make_string (&c, 1); |
| 2424 | } |
| 2425 | |
| 2426 | DEFVAR_LISP ("invocation-name", Vinvocation_name, |
| 2427 | doc: /* The program name that was used to run Emacs. |
| 2428 | Any directory names are omitted. */); |
| 2429 | |
| 2430 | DEFVAR_LISP ("invocation-directory", Vinvocation_directory, |
| 2431 | doc: /* The directory in which the Emacs executable was found, to run it. |
| 2432 | The value is nil if that directory's name is not known. */); |
| 2433 | |
| 2434 | DEFVAR_LISP ("installation-directory", Vinstallation_directory, |
| 2435 | doc: /* A directory within which to look for the `lib-src' and `etc' directories. |
| 2436 | This is non-nil when we can't find those directories in their standard |
| 2437 | installed locations, but we can find them near where the Emacs executable |
| 2438 | was found. */); |
| 2439 | Vinstallation_directory = Qnil; |
| 2440 | |
| 2441 | DEFVAR_LISP ("system-messages-locale", Vsystem_messages_locale, |
| 2442 | doc: /* System locale for messages. */); |
| 2443 | Vsystem_messages_locale = Qnil; |
| 2444 | |
| 2445 | DEFVAR_LISP ("previous-system-messages-locale", |
| 2446 | Vprevious_system_messages_locale, |
| 2447 | doc: /* Most recently used system locale for messages. */); |
| 2448 | Vprevious_system_messages_locale = Qnil; |
| 2449 | |
| 2450 | DEFVAR_LISP ("system-time-locale", Vsystem_time_locale, |
| 2451 | doc: /* System locale for time. */); |
| 2452 | Vsystem_time_locale = Qnil; |
| 2453 | |
| 2454 | DEFVAR_LISP ("previous-system-time-locale", Vprevious_system_time_locale, |
| 2455 | doc: /* Most recently used system locale for time. */); |
| 2456 | Vprevious_system_time_locale = Qnil; |
| 2457 | |
| 2458 | DEFVAR_LISP ("before-init-time", Vbefore_init_time, |
| 2459 | doc: /* Value of `current-time' before Emacs begins initialization. */); |
| 2460 | Vbefore_init_time = Qnil; |
| 2461 | |
| 2462 | DEFVAR_LISP ("after-init-time", Vafter_init_time, |
| 2463 | doc: /* Value of `current-time' after loading the init files. |
| 2464 | This is nil during initialization. */); |
| 2465 | Vafter_init_time = Qnil; |
| 2466 | |
| 2467 | DEFVAR_BOOL ("inhibit-x-resources", inhibit_x_resources, |
| 2468 | doc: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */); |
| 2469 | inhibit_x_resources = 0; |
| 2470 | |
| 2471 | DEFVAR_LISP ("emacs-copyright", Vemacs_copyright, |
| 2472 | doc: /* Short copyright string for this version of Emacs. */); |
| 2473 | Vemacs_copyright = build_string (emacs_copyright); |
| 2474 | |
| 2475 | DEFVAR_LISP ("emacs-version", Vemacs_version, |
| 2476 | doc: /* Version numbers of this version of Emacs. */); |
| 2477 | Vemacs_version = build_string (emacs_version); |
| 2478 | |
| 2479 | DEFVAR_LISP ("dynamic-library-alist", Vdynamic_library_alist, |
| 2480 | doc: /* Alist of dynamic libraries vs external files implementing them. |
| 2481 | Each element is a list (LIBRARY FILE...), where the car is a symbol |
| 2482 | representing a supported external library, and the rest are strings giving |
| 2483 | alternate filenames for that library. |
| 2484 | |
| 2485 | Emacs tries to load the library from the files in the order they appear on |
| 2486 | the list; if none is loaded, the running session of Emacs won't have access |
| 2487 | to that library. |
| 2488 | |
| 2489 | Note that image types `pbm' and `xbm' do not need entries in this variable |
| 2490 | because they do not depend on external libraries and are always available. |
| 2491 | |
| 2492 | Also note that this is not a generic facility for accessing external |
| 2493 | libraries; only those already known by Emacs will be loaded. */); |
| 2494 | Vdynamic_library_alist = Qnil; |
| 2495 | Fput (intern_c_string ("dynamic-library-alist"), Qrisky_local_variable, Qt); |
| 2496 | |
| 2497 | /* Make sure IS_DAEMON starts up as false. */ |
| 2498 | daemon_pipe[1] = 0; |
| 2499 | } |