| 1 | /* Fully extensible Emacs, running on Unix, intended for GNU. |
| 2 | Copyright (C) 1985,86,87,93,94,95,97,98,1999,2001,02,2003 |
| 3 | Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GNU Emacs. |
| 6 | |
| 7 | GNU Emacs is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2, or (at your option) |
| 10 | any later version. |
| 11 | |
| 12 | GNU Emacs is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with GNU Emacs; see the file COPYING. If not, write to |
| 19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 20 | Boston, MA 02111-1307, USA. */ |
| 21 | |
| 22 | |
| 23 | #include <config.h> |
| 24 | #include <signal.h> |
| 25 | #include <errno.h> |
| 26 | #include <stdio.h> |
| 27 | |
| 28 | #include <sys/types.h> |
| 29 | #include <sys/file.h> |
| 30 | |
| 31 | #ifdef VMS |
| 32 | #include <ssdef.h> |
| 33 | #endif |
| 34 | |
| 35 | #ifdef HAVE_UNISTD_H |
| 36 | #include <unistd.h> |
| 37 | #endif |
| 38 | |
| 39 | #ifdef BSD_SYSTEM |
| 40 | #include <sys/ioctl.h> |
| 41 | #endif |
| 42 | |
| 43 | #ifdef WINDOWSNT |
| 44 | #include <fcntl.h> |
| 45 | #endif |
| 46 | |
| 47 | #include "lisp.h" |
| 48 | #include "commands.h" |
| 49 | #include "intervals.h" |
| 50 | #include "buffer.h" |
| 51 | #include "window.h" |
| 52 | |
| 53 | #include "systty.h" |
| 54 | #include "blockinput.h" |
| 55 | #include "syssignal.h" |
| 56 | #include "process.h" |
| 57 | #include "termhooks.h" |
| 58 | #include "keyboard.h" |
| 59 | #include "keymap.h" |
| 60 | |
| 61 | #ifdef HAVE_SETLOCALE |
| 62 | #include <locale.h> |
| 63 | #endif |
| 64 | |
| 65 | #ifdef HAVE_SETRLIMIT |
| 66 | #include <sys/time.h> |
| 67 | #include <sys/resource.h> |
| 68 | #endif |
| 69 | |
| 70 | #ifndef O_RDWR |
| 71 | #define O_RDWR 2 |
| 72 | #endif |
| 73 | |
| 74 | #ifdef HAVE_SETPGID |
| 75 | #if !defined (USG) || defined (BSD_PGRPS) |
| 76 | #undef setpgrp |
| 77 | #define setpgrp setpgid |
| 78 | #endif |
| 79 | #endif |
| 80 | |
| 81 | extern void malloc_warning P_ ((char *)); |
| 82 | extern void set_time_zone_rule P_ ((char *)); |
| 83 | #ifdef HAVE_INDEX |
| 84 | extern char *index P_ ((const char *, int)); |
| 85 | #endif |
| 86 | |
| 87 | /* Make these values available in GDB, which doesn't see macros. */ |
| 88 | |
| 89 | EMACS_INT gdb_valbits = VALBITS; |
| 90 | EMACS_INT gdb_gctypebits = GCTYPEBITS; |
| 91 | EMACS_INT gdb_emacs_intbits = sizeof (EMACS_INT) * BITS_PER_CHAR; |
| 92 | #ifdef DATA_SEG_BITS |
| 93 | EMACS_INT gdb_data_seg_bits = DATA_SEG_BITS; |
| 94 | #else |
| 95 | EMACS_INT gdb_data_seg_bits = 0; |
| 96 | #endif |
| 97 | EMACS_INT PVEC_FLAG = PSEUDOVECTOR_FLAG; |
| 98 | |
| 99 | /* Command line args from shell, as list of strings. */ |
| 100 | Lisp_Object Vcommand_line_args; |
| 101 | |
| 102 | /* The name under which Emacs was invoked, with any leading directory |
| 103 | names discarded. */ |
| 104 | Lisp_Object Vinvocation_name; |
| 105 | |
| 106 | /* The directory name from which Emacs was invoked. */ |
| 107 | Lisp_Object Vinvocation_directory; |
| 108 | |
| 109 | /* The directory name in which to find subdirs such as lisp and etc. |
| 110 | nil means get them only from PATH_LOADSEARCH. */ |
| 111 | Lisp_Object Vinstallation_directory; |
| 112 | |
| 113 | /* Hook run by `kill-emacs' before it does really anything. */ |
| 114 | Lisp_Object Vkill_emacs_hook; |
| 115 | |
| 116 | /* An empty lisp string. To avoid having to build any other. */ |
| 117 | Lisp_Object empty_string; |
| 118 | |
| 119 | #ifdef SIGUSR1 |
| 120 | /* Hooks for signal USR1 and USR2 handling. */ |
| 121 | Lisp_Object Vsignal_USR1_hook; |
| 122 | #ifdef SIGUSR2 |
| 123 | Lisp_Object Vsignal_USR2_hook; |
| 124 | #endif |
| 125 | #endif |
| 126 | |
| 127 | /* Search path separator. */ |
| 128 | Lisp_Object Vpath_separator; |
| 129 | |
| 130 | /* Set nonzero after Emacs has started up the first time. |
| 131 | Prevents reinitialization of the Lisp world and keymaps |
| 132 | on subsequent starts. */ |
| 133 | int initialized; |
| 134 | |
| 135 | #ifdef DOUG_LEA_MALLOC |
| 136 | /* Preserves a pointer to the memory allocated that copies that |
| 137 | static data inside glibc's malloc. */ |
| 138 | void *malloc_state_ptr; |
| 139 | /* From glibc, a routine that returns a copy of the malloc internal state. */ |
| 140 | extern void *malloc_get_state (); |
| 141 | /* From glibc, a routine that overwrites the malloc internal state. */ |
| 142 | extern void malloc_set_state (); |
| 143 | /* Non-zero if the MALLOC_CHECK_ enviroment variable was set while |
| 144 | dumping. Used to work around a bug in glibc's malloc. */ |
| 145 | int malloc_using_checking; |
| 146 | #endif |
| 147 | |
| 148 | /* Variable whose value is symbol giving operating system type. */ |
| 149 | Lisp_Object Vsystem_type; |
| 150 | |
| 151 | /* Variable whose value is string giving configuration built for. */ |
| 152 | Lisp_Object Vsystem_configuration; |
| 153 | |
| 154 | /* Variable whose value is string giving configuration options, |
| 155 | for use when reporting bugs. */ |
| 156 | Lisp_Object Vsystem_configuration_options; |
| 157 | |
| 158 | Lisp_Object Qfile_name_handler_alist; |
| 159 | |
| 160 | /* Current and previous system locales for messages and time. */ |
| 161 | Lisp_Object Vsystem_messages_locale; |
| 162 | Lisp_Object Vprevious_system_messages_locale; |
| 163 | Lisp_Object Vsystem_time_locale; |
| 164 | Lisp_Object Vprevious_system_time_locale; |
| 165 | |
| 166 | /* If non-zero, emacs should not attempt to use a window-specific code, |
| 167 | but instead should use the virtual terminal under which it was started. */ |
| 168 | int inhibit_window_system; |
| 169 | |
| 170 | /* If nonzero, set Emacs to run at this priority. This is also used |
| 171 | in child_setup and sys_suspend to make sure subshells run at normal |
| 172 | priority; those functions have their own extern declaration. */ |
| 173 | EMACS_INT emacs_priority; |
| 174 | |
| 175 | /* If non-zero, a filter or a sentinel is running. Tested to save the match |
| 176 | data on the first attempt to change it inside asynchronous code. */ |
| 177 | int running_asynch_code; |
| 178 | |
| 179 | #ifdef BSD_PGRPS |
| 180 | /* See sysdep.c. */ |
| 181 | extern int inherited_pgroup; |
| 182 | #endif |
| 183 | |
| 184 | #ifdef HAVE_X_WINDOWS |
| 185 | /* If non-zero, -d was specified, meaning we're using some window system. */ |
| 186 | int display_arg; |
| 187 | #endif |
| 188 | |
| 189 | /* An address near the bottom of the stack. |
| 190 | Tells GC how to save a copy of the stack. */ |
| 191 | char *stack_bottom; |
| 192 | |
| 193 | #ifdef HAVE_WINDOW_SYSTEM |
| 194 | extern Lisp_Object Vwindow_system; |
| 195 | #endif /* HAVE_WINDOW_SYSTEM */ |
| 196 | |
| 197 | extern Lisp_Object Vauto_save_list_file_name; |
| 198 | |
| 199 | #ifdef USG_SHARED_LIBRARIES |
| 200 | /* If nonzero, this is the place to put the end of the writable segment |
| 201 | at startup. */ |
| 202 | |
| 203 | unsigned int bss_end = 0; |
| 204 | #endif |
| 205 | |
| 206 | /* Nonzero means running Emacs without interactive terminal. */ |
| 207 | |
| 208 | int noninteractive; |
| 209 | |
| 210 | /* Value of Lisp variable `noninteractive'. |
| 211 | Normally same as C variable `noninteractive' |
| 212 | but nothing terrible happens if user sets this one. */ |
| 213 | |
| 214 | int noninteractive1; |
| 215 | |
| 216 | /* Save argv and argc. */ |
| 217 | char **initial_argv; |
| 218 | int initial_argc; |
| 219 | |
| 220 | static void sort_args (); |
| 221 | void syms_of_emacs (); |
| 222 | |
| 223 | #define USAGE1 "\ |
| 224 | Usage: %s [OPTION-OR-FILENAME]...\n\ |
| 225 | \n\ |
| 226 | Run Emacs, the extensible, customizable, self-documenting real-time\n\ |
| 227 | display editor. The recommended way to start Emacs for normal editing\n\ |
| 228 | is with no options at all.\n\ |
| 229 | \n\ |
| 230 | Run M-x info RET m emacs RET m command arguments RET inside Emacs to\n\ |
| 231 | read the main documentation for these command-line arguments.\n\ |
| 232 | \n\ |
| 233 | Initialization options:\n\ |
| 234 | \n\ |
| 235 | --batch do not do interactive display; implies -q\n\ |
| 236 | --script FILE run FILE as an Emacs Lisp script.\n\ |
| 237 | --debug-init enable Emacs Lisp debugger during init file\n\ |
| 238 | --help display this help message and exit\n\ |
| 239 | --multibyte, --no-unibyte run Emacs in multibyte mode\n\ |
| 240 | --no-init-file, -q load neither ~/.emacs nor default.el\n\ |
| 241 | --no-shared-memory, -nl do not use shared memory\n\ |
| 242 | --no-site-file do not load site-start.el\n\ |
| 243 | --no-splash do not display a splash screen on startup\n\ |
| 244 | --no-window-system, -nw don't communicate with X, ignoring $DISPLAY\n\ |
| 245 | --terminal, -t DEVICE use DEVICE for terminal I/O\n\ |
| 246 | --unibyte, --no-multibyte run Emacs in unibyte mode\n\ |
| 247 | --user, -u USER load ~USER/.emacs instead of your own\n\ |
| 248 | --version display version information and exit\n\ |
| 249 | \n\ |
| 250 | Action options:\n\ |
| 251 | \n\ |
| 252 | FILE visit FILE using find-file\n\ |
| 253 | +LINE FILE visit FILE using find-file, then go to line LINE\n\ |
| 254 | +LINE:COLUMN FILE visit FILE using find-file, then go to line LINE,\n\ |
| 255 | column COLUMN\n\ |
| 256 | --directory, -L DIR add DIR to variable load-path\n\ |
| 257 | --eval EXPR evaluate Emacs Lisp expression EXPR\n\ |
| 258 | --execute EXPR evaluate Emacs Lisp expression EXPR\n\ |
| 259 | --find-file FILE visit FILE\n\ |
| 260 | --funcall, -f FUNC call Emacs function FUNC with no arguments\n\ |
| 261 | --insert FILE insert contents of FILE into current buffer\n\ |
| 262 | --kill exit without asking for confirmation\n\ |
| 263 | --load, -l FILE load FILE of Emacs Lisp code using the load function\n\ |
| 264 | --visit FILE visit FILE\n\ |
| 265 | \n" |
| 266 | |
| 267 | #define USAGE2 "\ |
| 268 | Display options:\n\ |
| 269 | \n\ |
| 270 | --background-color, -bg COLOR window background color\n\ |
| 271 | --border-color, -bd COLOR main border color\n\ |
| 272 | --border-width, -bw WIDTH width of main border\n\ |
| 273 | --color=MODE color mode for character terminals;\n\ |
| 274 | MODE defaults to `auto', and can also\n\ |
| 275 | be `never', `auto', `always',\n\ |
| 276 | or a mode name like `ansi8'\n\ |
| 277 | --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\ |
| 278 | --display, -d DISPLAY use X server DISPLAY\n\ |
| 279 | --font, -fn FONT default font; must be fixed-width\n\ |
| 280 | --foreground-color, -fg COLOR window foreground color\n\ |
| 281 | --fullscreen, -fs make first frame fullscreen\n\ |
| 282 | --fullwidth, -fw make the first frame wide as the screen\n\ |
| 283 | --fullheight, -fh make the first frame high as the screen\n\ |
| 284 | --geometry, -g GEOMETRY window geometry\n\ |
| 285 | --iconic start Emacs in iconified state\n\ |
| 286 | --icon-type, -i use picture of gnu for Emacs icon\n\ |
| 287 | --internal-border, -ib WIDTH width between text and main border\n\ |
| 288 | --line-spacing, -lsp PIXELS additional space to put between lines\n\ |
| 289 | --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\ |
| 290 | --name NAME title of main Emacs window\n\ |
| 291 | --reverse-video, -r, -rv switch foreground and background\n\ |
| 292 | --title, -T, -wn TITLE title for Emacs windows\n\ |
| 293 | --vertical-scroll-bars, -vb enable vertical scroll bars\n\ |
| 294 | --xrm XRESOURCES set additional X resources\n\ |
| 295 | \n\ |
| 296 | You can generally also specify long option names with a single -; for\n\ |
| 297 | example, -batch as well as --batch. You can use any unambiguous\n\ |
| 298 | abbreviation for a --option.\n\ |
| 299 | \n\ |
| 300 | Various environment variables and window system resources also affect\n\ |
| 301 | Emacs' operation. See the main documentation.\n\ |
| 302 | \n" |
| 303 | |
| 304 | #define USAGE3 "\ |
| 305 | Report bugs to %s. First, please see the Bugs\n\ |
| 306 | section of the Emacs manual or the file BUGS.\n" |
| 307 | |
| 308 | \f |
| 309 | /* Signal code for the fatal signal that was received. */ |
| 310 | int fatal_error_code; |
| 311 | |
| 312 | /* Nonzero if handling a fatal error already. */ |
| 313 | int fatal_error_in_progress; |
| 314 | |
| 315 | /* If non-null, call this function from fatal_error_signal before |
| 316 | committing suicide. */ |
| 317 | |
| 318 | void (*fatal_error_signal_hook) P_ ((void)); |
| 319 | |
| 320 | |
| 321 | #ifdef SIGUSR1 |
| 322 | SIGTYPE |
| 323 | handle_USR1_signal (sig) |
| 324 | int sig; |
| 325 | { |
| 326 | struct input_event buf; |
| 327 | |
| 328 | bzero (&buf, sizeof buf); |
| 329 | buf.kind = USER_SIGNAL_EVENT; |
| 330 | buf.frame_or_window = selected_frame; |
| 331 | |
| 332 | kbd_buffer_store_event (&buf); |
| 333 | } |
| 334 | #endif /* SIGUSR1 */ |
| 335 | |
| 336 | #ifdef SIGUSR2 |
| 337 | SIGTYPE |
| 338 | handle_USR2_signal (sig) |
| 339 | int sig; |
| 340 | { |
| 341 | struct input_event buf; |
| 342 | |
| 343 | bzero (&buf, sizeof buf); |
| 344 | buf.kind = USER_SIGNAL_EVENT; |
| 345 | buf.code = 1; |
| 346 | buf.frame_or_window = selected_frame; |
| 347 | |
| 348 | kbd_buffer_store_event (&buf); |
| 349 | } |
| 350 | #endif /* SIGUSR2 */ |
| 351 | |
| 352 | /* Handle bus errors, invalid instruction, etc. */ |
| 353 | SIGTYPE |
| 354 | fatal_error_signal (sig) |
| 355 | int sig; |
| 356 | { |
| 357 | fatal_error_code = sig; |
| 358 | signal (sig, SIG_DFL); |
| 359 | |
| 360 | TOTALLY_UNBLOCK_INPUT; |
| 361 | |
| 362 | /* If fatal error occurs in code below, avoid infinite recursion. */ |
| 363 | if (! fatal_error_in_progress) |
| 364 | { |
| 365 | fatal_error_in_progress = 1; |
| 366 | |
| 367 | shut_down_emacs (sig, 0, Qnil); |
| 368 | } |
| 369 | |
| 370 | #ifdef VMS |
| 371 | LIB$STOP (SS$_ABORT); |
| 372 | #else |
| 373 | /* Signal the same code; this time it will really be fatal. |
| 374 | Remember that since we're in a signal handler, the signal we're |
| 375 | going to send is probably blocked, so we have to unblock it if we |
| 376 | want to really receive it. */ |
| 377 | #ifndef MSDOS |
| 378 | sigunblock (sigmask (fatal_error_code)); |
| 379 | #endif |
| 380 | |
| 381 | if (fatal_error_signal_hook) |
| 382 | fatal_error_signal_hook (); |
| 383 | |
| 384 | kill (getpid (), fatal_error_code); |
| 385 | #endif /* not VMS */ |
| 386 | } |
| 387 | |
| 388 | #ifdef SIGDANGER |
| 389 | |
| 390 | /* Handler for SIGDANGER. */ |
| 391 | SIGTYPE |
| 392 | memory_warning_signal (sig) |
| 393 | int sig; |
| 394 | { |
| 395 | signal (sig, memory_warning_signal); |
| 396 | |
| 397 | malloc_warning ("Operating system warns that virtual memory is running low.\n"); |
| 398 | |
| 399 | /* It might be unsafe to call do_auto_save now. */ |
| 400 | force_auto_save_soon (); |
| 401 | } |
| 402 | #endif |
| 403 | |
| 404 | /* We define abort, rather than using it from the library, |
| 405 | so that GDB can return from a breakpoint here. |
| 406 | MSDOS has its own definition in msdos.c. */ |
| 407 | |
| 408 | #if ! defined (DOS_NT) && ! defined (NO_ABORT) |
| 409 | |
| 410 | #ifndef ABORT_RETURN_TYPE |
| 411 | #define ABORT_RETURN_TYPE void |
| 412 | #endif |
| 413 | |
| 414 | ABORT_RETURN_TYPE |
| 415 | abort () |
| 416 | { |
| 417 | kill (getpid (), SIGABRT); |
| 418 | /* This shouldn't be executed, but it prevents a warning. */ |
| 419 | exit (1); |
| 420 | } |
| 421 | #endif |
| 422 | |
| 423 | \f |
| 424 | /* Code for dealing with Lisp access to the Unix command line. */ |
| 425 | |
| 426 | static void |
| 427 | init_cmdargs (argc, argv, skip_args) |
| 428 | int argc; |
| 429 | char **argv; |
| 430 | int skip_args; |
| 431 | { |
| 432 | register int i; |
| 433 | Lisp_Object name, dir, tem; |
| 434 | int count = SPECPDL_INDEX (); |
| 435 | Lisp_Object raw_name; |
| 436 | |
| 437 | initial_argv = argv; |
| 438 | initial_argc = argc; |
| 439 | |
| 440 | raw_name = build_string (argv[0]); |
| 441 | |
| 442 | /* Add /: to the front of the name |
| 443 | if it would otherwise be treated as magic. */ |
| 444 | tem = Ffind_file_name_handler (raw_name, Qt); |
| 445 | if (! NILP (tem)) |
| 446 | raw_name = concat2 (build_string ("/:"), raw_name); |
| 447 | |
| 448 | Vinvocation_name = Ffile_name_nondirectory (raw_name); |
| 449 | Vinvocation_directory = Ffile_name_directory (raw_name); |
| 450 | |
| 451 | /* If we got no directory in argv[0], search PATH to find where |
| 452 | Emacs actually came from. */ |
| 453 | if (NILP (Vinvocation_directory)) |
| 454 | { |
| 455 | Lisp_Object found; |
| 456 | int yes = openp (Vexec_path, Vinvocation_name, |
| 457 | Vexec_suffixes, &found, make_number (X_OK)); |
| 458 | if (yes == 1) |
| 459 | { |
| 460 | /* Add /: to the front of the name |
| 461 | if it would otherwise be treated as magic. */ |
| 462 | tem = Ffind_file_name_handler (found, Qt); |
| 463 | if (! NILP (tem)) |
| 464 | found = concat2 (build_string ("/:"), found); |
| 465 | Vinvocation_directory = Ffile_name_directory (found); |
| 466 | } |
| 467 | } |
| 468 | |
| 469 | if (!NILP (Vinvocation_directory) |
| 470 | && NILP (Ffile_name_absolute_p (Vinvocation_directory))) |
| 471 | /* Emacs was started with relative path, like ./emacs. |
| 472 | Make it absolute. */ |
| 473 | Vinvocation_directory = Fexpand_file_name (Vinvocation_directory, Qnil); |
| 474 | |
| 475 | Vinstallation_directory = Qnil; |
| 476 | |
| 477 | if (!NILP (Vinvocation_directory)) |
| 478 | { |
| 479 | dir = Vinvocation_directory; |
| 480 | name = Fexpand_file_name (Vinvocation_name, dir); |
| 481 | while (1) |
| 482 | { |
| 483 | Lisp_Object tem, lib_src_exists; |
| 484 | Lisp_Object etc_exists, info_exists; |
| 485 | |
| 486 | /* See if dir contains subdirs for use by Emacs. |
| 487 | Check for the ones that would exist in a build directory, |
| 488 | not including lisp and info. */ |
| 489 | tem = Fexpand_file_name (build_string ("lib-src"), dir); |
| 490 | lib_src_exists = Ffile_exists_p (tem); |
| 491 | |
| 492 | #ifdef MSDOS |
| 493 | /* MSDOS installations frequently remove lib-src, but we still |
| 494 | must set installation-directory, or else info won't find |
| 495 | its files (it uses the value of installation-directory). */ |
| 496 | tem = Fexpand_file_name (build_string ("info"), dir); |
| 497 | info_exists = Ffile_exists_p (tem); |
| 498 | #else |
| 499 | info_exists = Qnil; |
| 500 | #endif |
| 501 | |
| 502 | if (!NILP (lib_src_exists) || !NILP (info_exists)) |
| 503 | { |
| 504 | tem = Fexpand_file_name (build_string ("etc"), dir); |
| 505 | etc_exists = Ffile_exists_p (tem); |
| 506 | if (!NILP (etc_exists)) |
| 507 | { |
| 508 | Vinstallation_directory |
| 509 | = Ffile_name_as_directory (dir); |
| 510 | break; |
| 511 | } |
| 512 | } |
| 513 | |
| 514 | /* See if dir's parent contains those subdirs. */ |
| 515 | tem = Fexpand_file_name (build_string ("../lib-src"), dir); |
| 516 | lib_src_exists = Ffile_exists_p (tem); |
| 517 | |
| 518 | |
| 519 | #ifdef MSDOS |
| 520 | /* See the MSDOS commentary above. */ |
| 521 | tem = Fexpand_file_name (build_string ("../info"), dir); |
| 522 | info_exists = Ffile_exists_p (tem); |
| 523 | #else |
| 524 | info_exists = Qnil; |
| 525 | #endif |
| 526 | |
| 527 | if (!NILP (lib_src_exists) || !NILP (info_exists)) |
| 528 | { |
| 529 | tem = Fexpand_file_name (build_string ("../etc"), dir); |
| 530 | etc_exists = Ffile_exists_p (tem); |
| 531 | if (!NILP (etc_exists)) |
| 532 | { |
| 533 | tem = Fexpand_file_name (build_string (".."), dir); |
| 534 | Vinstallation_directory |
| 535 | = Ffile_name_as_directory (tem); |
| 536 | break; |
| 537 | } |
| 538 | } |
| 539 | |
| 540 | /* If the Emacs executable is actually a link, |
| 541 | next try the dir that the link points into. */ |
| 542 | tem = Ffile_symlink_p (name); |
| 543 | if (!NILP (tem)) |
| 544 | { |
| 545 | name = Fexpand_file_name (tem, dir); |
| 546 | dir = Ffile_name_directory (name); |
| 547 | } |
| 548 | else |
| 549 | break; |
| 550 | } |
| 551 | } |
| 552 | |
| 553 | Vcommand_line_args = Qnil; |
| 554 | |
| 555 | for (i = argc - 1; i >= 0; i--) |
| 556 | { |
| 557 | if (i == 0 || i > skip_args) |
| 558 | Vcommand_line_args |
| 559 | = Fcons (build_string (argv[i]), Vcommand_line_args); |
| 560 | } |
| 561 | |
| 562 | unbind_to (count, Qnil); |
| 563 | } |
| 564 | |
| 565 | DEFUN ("invocation-name", Finvocation_name, Sinvocation_name, 0, 0, 0, |
| 566 | doc: /* Return the program name that was used to run Emacs. |
| 567 | Any directory names are omitted. */) |
| 568 | () |
| 569 | { |
| 570 | return Fcopy_sequence (Vinvocation_name); |
| 571 | } |
| 572 | |
| 573 | DEFUN ("invocation-directory", Finvocation_directory, Sinvocation_directory, |
| 574 | 0, 0, 0, |
| 575 | doc: /* Return the directory name in which the Emacs executable was located. */) |
| 576 | () |
| 577 | { |
| 578 | return Fcopy_sequence (Vinvocation_directory); |
| 579 | } |
| 580 | |
| 581 | \f |
| 582 | #ifdef VMS |
| 583 | #ifdef LINK_CRTL_SHARE |
| 584 | #ifdef SHARABLE_LIB_BUG |
| 585 | extern noshare char **environ; |
| 586 | #endif /* SHARABLE_LIB_BUG */ |
| 587 | #endif /* LINK_CRTL_SHARE */ |
| 588 | #endif /* VMS */ |
| 589 | |
| 590 | #ifdef HAVE_TZSET |
| 591 | /* A valid but unlikely value for the TZ environment value. |
| 592 | It is OK (though a bit slower) if the user actually chooses this value. */ |
| 593 | static char dump_tz[] = "UtC0"; |
| 594 | #endif |
| 595 | |
| 596 | #ifndef ORDINARY_LINK |
| 597 | /* We don't include crtbegin.o and crtend.o in the link, |
| 598 | so these functions and variables might be missed. |
| 599 | Provide dummy definitions to avoid error. |
| 600 | (We don't have any real constructors or destructors.) */ |
| 601 | #ifdef __GNUC__ |
| 602 | #ifndef GCC_CTORS_IN_LIBC |
| 603 | void __do_global_ctors () |
| 604 | {} |
| 605 | void __do_global_ctors_aux () |
| 606 | {} |
| 607 | void __do_global_dtors () |
| 608 | {} |
| 609 | /* GNU/Linux has a bug in its library; avoid an error. */ |
| 610 | #ifndef GNU_LINUX |
| 611 | char * __CTOR_LIST__[2] = { (char *) (-1), 0 }; |
| 612 | #endif |
| 613 | char * __DTOR_LIST__[2] = { (char *) (-1), 0 }; |
| 614 | #endif /* GCC_CTORS_IN_LIBC */ |
| 615 | void __main () |
| 616 | {} |
| 617 | #endif /* __GNUC__ */ |
| 618 | #endif /* ORDINARY_LINK */ |
| 619 | |
| 620 | /* Test whether the next argument in ARGV matches SSTR or a prefix of |
| 621 | LSTR (at least MINLEN characters). If so, then if VALPTR is non-null |
| 622 | (the argument is supposed to have a value) store in *VALPTR either |
| 623 | the next argument or the portion of this one after the equal sign. |
| 624 | ARGV is read starting at position *SKIPPTR; this index is advanced |
| 625 | by the number of arguments used. |
| 626 | |
| 627 | Too bad we can't just use getopt for all of this, but we don't have |
| 628 | enough information to do it right. */ |
| 629 | |
| 630 | static int |
| 631 | argmatch (argv, argc, sstr, lstr, minlen, valptr, skipptr) |
| 632 | char **argv; |
| 633 | int argc; |
| 634 | char *sstr; |
| 635 | char *lstr; |
| 636 | int minlen; |
| 637 | char **valptr; |
| 638 | int *skipptr; |
| 639 | { |
| 640 | char *p = NULL; |
| 641 | int arglen; |
| 642 | char *arg; |
| 643 | |
| 644 | /* Don't access argv[argc]; give up in advance. */ |
| 645 | if (argc <= *skipptr + 1) |
| 646 | return 0; |
| 647 | |
| 648 | arg = argv[*skipptr+1]; |
| 649 | if (arg == NULL) |
| 650 | return 0; |
| 651 | if (strcmp (arg, sstr) == 0) |
| 652 | { |
| 653 | if (valptr != NULL) |
| 654 | { |
| 655 | *valptr = argv[*skipptr+2]; |
| 656 | *skipptr += 2; |
| 657 | } |
| 658 | else |
| 659 | *skipptr += 1; |
| 660 | return 1; |
| 661 | } |
| 662 | arglen = (valptr != NULL && (p = index (arg, '=')) != NULL |
| 663 | ? p - arg : strlen (arg)); |
| 664 | if (lstr == 0 || arglen < minlen || strncmp (arg, lstr, arglen) != 0) |
| 665 | return 0; |
| 666 | else if (valptr == NULL) |
| 667 | { |
| 668 | *skipptr += 1; |
| 669 | return 1; |
| 670 | } |
| 671 | else if (p != NULL) |
| 672 | { |
| 673 | *valptr = p+1; |
| 674 | *skipptr += 1; |
| 675 | return 1; |
| 676 | } |
| 677 | else if (argv[*skipptr+2] != NULL) |
| 678 | { |
| 679 | *valptr = argv[*skipptr+2]; |
| 680 | *skipptr += 2; |
| 681 | return 1; |
| 682 | } |
| 683 | else |
| 684 | { |
| 685 | return 0; |
| 686 | } |
| 687 | } |
| 688 | |
| 689 | #ifdef DOUG_LEA_MALLOC |
| 690 | |
| 691 | /* malloc can be invoked even before main (e.g. by the dynamic |
| 692 | linker), so the dumped malloc state must be restored as early as |
| 693 | possible using this special hook. */ |
| 694 | |
| 695 | static void |
| 696 | malloc_initialize_hook () |
| 697 | { |
| 698 | #ifndef USE_CRT_DLL |
| 699 | extern char **environ; |
| 700 | #endif |
| 701 | |
| 702 | if (initialized) |
| 703 | { |
| 704 | if (!malloc_using_checking) |
| 705 | /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be |
| 706 | ignored if the heap to be restored was constructed without |
| 707 | malloc checking. Can't use unsetenv, since that calls malloc. */ |
| 708 | { |
| 709 | char **p; |
| 710 | |
| 711 | for (p = environ; p && *p; p++) |
| 712 | if (strncmp (*p, "MALLOC_CHECK_=", 14) == 0) |
| 713 | { |
| 714 | do |
| 715 | *p = p[1]; |
| 716 | while (*++p); |
| 717 | break; |
| 718 | } |
| 719 | } |
| 720 | |
| 721 | malloc_set_state (malloc_state_ptr); |
| 722 | free (malloc_state_ptr); |
| 723 | } |
| 724 | else |
| 725 | malloc_using_checking = getenv ("MALLOC_CHECK_") != NULL; |
| 726 | } |
| 727 | |
| 728 | void (*__malloc_initialize_hook) () = malloc_initialize_hook; |
| 729 | |
| 730 | #endif /* DOUG_LEA_MALLOC */ |
| 731 | |
| 732 | |
| 733 | #define REPORT_EMACS_BUG_ADDRESS "bug-gnu-emacs@gnu.org" |
| 734 | #define REPORT_EMACS_BUG_PRETEST_ADDRESS "emacs-pretest-bug@gnu.org" |
| 735 | |
| 736 | /* This function is used to determine an address to which bug report should |
| 737 | be sent. */ |
| 738 | |
| 739 | char * |
| 740 | bug_reporting_address () |
| 741 | { |
| 742 | int count = 0; |
| 743 | Lisp_Object temp; |
| 744 | char *string; |
| 745 | |
| 746 | temp = Fsymbol_value (intern ("emacs-version")); |
| 747 | |
| 748 | /* When `emacs-version' is invalid, use normal address. */ |
| 749 | if (!STRINGP(temp)) |
| 750 | return REPORT_EMACS_BUG_ADDRESS; |
| 751 | |
| 752 | string = SDATA (temp); |
| 753 | |
| 754 | /* Count dots in `emacs-version'. */ |
| 755 | while (*string) |
| 756 | { |
| 757 | if (*string == '.') |
| 758 | count++; |
| 759 | string++; |
| 760 | } |
| 761 | |
| 762 | /* When `emacs-version' has at least three dots, it is development or |
| 763 | pretest version of Emacs. */ |
| 764 | return count >= 3 ? REPORT_EMACS_BUG_PRETEST_ADDRESS : REPORT_EMACS_BUG_ADDRESS; |
| 765 | } |
| 766 | |
| 767 | |
| 768 | /* ARGSUSED */ |
| 769 | int |
| 770 | main (argc, argv |
| 771 | #ifdef VMS |
| 772 | , envp |
| 773 | #endif |
| 774 | ) |
| 775 | int argc; |
| 776 | char **argv; |
| 777 | #ifdef VMS |
| 778 | char **envp; |
| 779 | #endif |
| 780 | { |
| 781 | #if GC_MARK_STACK |
| 782 | Lisp_Object dummy; |
| 783 | #endif |
| 784 | char stack_bottom_variable; |
| 785 | int do_initial_setlocale; |
| 786 | int skip_args = 0; |
| 787 | #ifndef USE_CRT_DLL |
| 788 | extern int errno; |
| 789 | #endif |
| 790 | #ifdef HAVE_SETRLIMIT |
| 791 | struct rlimit rlim; |
| 792 | #endif |
| 793 | int no_loadup = 0; |
| 794 | char *junk = 0; |
| 795 | |
| 796 | #if GC_MARK_STACK |
| 797 | extern Lisp_Object *stack_base; |
| 798 | stack_base = &dummy; |
| 799 | #endif |
| 800 | |
| 801 | #ifdef LINUX_SBRK_BUG |
| 802 | __sbrk (1); |
| 803 | #endif |
| 804 | |
| 805 | #ifdef RUN_TIME_REMAP |
| 806 | if (initialized) |
| 807 | run_time_remap (argv[0]); |
| 808 | #endif |
| 809 | |
| 810 | #ifdef MAC_OSX |
| 811 | if (!initialized) |
| 812 | unexec_init_emacs_zone (); |
| 813 | #endif |
| 814 | |
| 815 | sort_args (argc, argv); |
| 816 | argc = 0; |
| 817 | while (argv[argc]) argc++; |
| 818 | |
| 819 | if (argmatch (argv, argc, "-version", "--version", 3, NULL, &skip_args) |
| 820 | /* We don't know the version number unless this is a dumped Emacs. |
| 821 | So ignore --version otherwise. */ |
| 822 | && initialized) |
| 823 | { |
| 824 | Lisp_Object tem; |
| 825 | tem = Fsymbol_value (intern ("emacs-version")); |
| 826 | if (!STRINGP (tem)) |
| 827 | { |
| 828 | fprintf (stderr, "Invalid value of `emacs-version'\n"); |
| 829 | exit (1); |
| 830 | } |
| 831 | else |
| 832 | { |
| 833 | printf ("GNU Emacs %s\n", SDATA (tem)); |
| 834 | printf ("Copyright (C) 2002 Free Software Foundation, Inc.\n"); |
| 835 | printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n"); |
| 836 | printf ("You may redistribute copies of Emacs\n"); |
| 837 | printf ("under the terms of the GNU General Public License.\n"); |
| 838 | printf ("For more information about these matters, "); |
| 839 | printf ("see the file named COPYING.\n"); |
| 840 | exit (0); |
| 841 | } |
| 842 | } |
| 843 | |
| 844 | /* Map in shared memory, if we are using that. */ |
| 845 | #ifdef HAVE_SHM |
| 846 | if (argmatch (argv, argc, "-nl", "--no-shared-memory", 6, NULL, &skip_args)) |
| 847 | { |
| 848 | map_in_data (0); |
| 849 | /* The shared memory was just restored, which clobbered this. */ |
| 850 | skip_args = 1; |
| 851 | } |
| 852 | else |
| 853 | { |
| 854 | map_in_data (1); |
| 855 | /* The shared memory was just restored, which clobbered this. */ |
| 856 | skip_args = 0; |
| 857 | } |
| 858 | #endif |
| 859 | |
| 860 | #ifdef NeXT |
| 861 | { |
| 862 | extern int malloc_cookie; |
| 863 | /* This helps out unexnext.c. */ |
| 864 | if (initialized) |
| 865 | if (malloc_jumpstart (malloc_cookie) != 0) |
| 866 | printf ("malloc jumpstart failed!\n"); |
| 867 | } |
| 868 | #endif /* NeXT */ |
| 869 | |
| 870 | #ifdef MAC_OSX |
| 871 | /* Skip process serial number passed in the form -psn_x_y as |
| 872 | command-line argument. */ |
| 873 | if (argc > skip_args + 1 && strncmp (argv[skip_args+1], "-psn_", 5) == 0) |
| 874 | skip_args++; |
| 875 | #endif /* MAC_OSX */ |
| 876 | |
| 877 | #ifdef VMS |
| 878 | /* If -map specified, map the data file in. */ |
| 879 | { |
| 880 | char *file; |
| 881 | if (argmatch (argv, argc, "-map", "--map-data", 3, &mapin_file, &skip_args)) |
| 882 | mapin_data (file); |
| 883 | } |
| 884 | |
| 885 | #ifdef LINK_CRTL_SHARE |
| 886 | #ifdef SHARABLE_LIB_BUG |
| 887 | /* Bletcherous shared libraries! */ |
| 888 | if (!stdin) |
| 889 | stdin = fdopen (0, "r"); |
| 890 | if (!stdout) |
| 891 | stdout = fdopen (1, "w"); |
| 892 | if (!stderr) |
| 893 | stderr = fdopen (2, "w"); |
| 894 | if (!environ) |
| 895 | environ = envp; |
| 896 | #endif /* SHARABLE_LIB_BUG */ |
| 897 | #endif /* LINK_CRTL_SHARE */ |
| 898 | #endif /* VMS */ |
| 899 | |
| 900 | #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK) |
| 901 | /* Extend the stack space available. |
| 902 | Don't do that if dumping, since some systems (e.g. DJGPP) |
| 903 | might define a smaller stack limit at that time. */ |
| 904 | if (1 |
| 905 | #ifndef CANNOT_DUMP |
| 906 | && (!noninteractive || initialized) |
| 907 | #endif |
| 908 | && !getrlimit (RLIMIT_STACK, &rlim)) |
| 909 | { |
| 910 | long newlim; |
| 911 | extern int re_max_failures; |
| 912 | /* Approximate the amount regex.c needs per unit of re_max_failures. */ |
| 913 | int ratio = 20 * sizeof (char *); |
| 914 | /* Then add 33% to cover the size of the smaller stacks that regex.c |
| 915 | successively allocates and discards, on its way to the maximum. */ |
| 916 | ratio += ratio / 3; |
| 917 | /* Add in some extra to cover |
| 918 | what we're likely to use for other reasons. */ |
| 919 | newlim = re_max_failures * ratio + 200000; |
| 920 | #ifdef __NetBSD__ |
| 921 | /* NetBSD (at least NetBSD 1.2G and former) has a bug in its |
| 922 | stack allocation routine for new process that the allocation |
| 923 | fails if stack limit is not on page boundary. So, round up the |
| 924 | new limit to page boundary. */ |
| 925 | newlim = (newlim + getpagesize () - 1) / getpagesize () * getpagesize(); |
| 926 | #endif |
| 927 | if (newlim > rlim.rlim_max) |
| 928 | { |
| 929 | newlim = rlim.rlim_max; |
| 930 | /* Don't let regex.c overflow the stack we have. */ |
| 931 | re_max_failures = (newlim - 200000) / ratio; |
| 932 | } |
| 933 | if (rlim.rlim_cur < newlim) |
| 934 | rlim.rlim_cur = newlim; |
| 935 | |
| 936 | setrlimit (RLIMIT_STACK, &rlim); |
| 937 | } |
| 938 | #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */ |
| 939 | |
| 940 | /* Record (approximately) where the stack begins. */ |
| 941 | stack_bottom = &stack_bottom_variable; |
| 942 | |
| 943 | #ifdef USG_SHARED_LIBRARIES |
| 944 | if (bss_end) |
| 945 | brk ((void *)bss_end); |
| 946 | #endif |
| 947 | |
| 948 | clearerr (stdin); |
| 949 | |
| 950 | #ifndef SYSTEM_MALLOC |
| 951 | /* Arrange to get warning messages as memory fills up. */ |
| 952 | memory_warnings (0, malloc_warning); |
| 953 | |
| 954 | /* Call malloc at least once, to run the initial __malloc_hook. |
| 955 | Also call realloc and free for consistency. */ |
| 956 | free (realloc (malloc (4), 4)); |
| 957 | |
| 958 | /* Arrange to disable interrupt input inside malloc etc. */ |
| 959 | uninterrupt_malloc (); |
| 960 | #endif /* not SYSTEM_MALLOC */ |
| 961 | |
| 962 | #if defined (MSDOS) || defined (WINDOWSNT) |
| 963 | /* We do all file input/output as binary files. When we need to translate |
| 964 | newlines, we do that manually. */ |
| 965 | _fmode = O_BINARY; |
| 966 | #endif /* MSDOS || WINDOWSNT */ |
| 967 | |
| 968 | #ifdef MSDOS |
| 969 | #if __DJGPP__ >= 2 |
| 970 | if (!isatty (fileno (stdin))) |
| 971 | setmode (fileno (stdin), O_BINARY); |
| 972 | if (!isatty (fileno (stdout))) |
| 973 | { |
| 974 | fflush (stdout); |
| 975 | setmode (fileno (stdout), O_BINARY); |
| 976 | } |
| 977 | #else /* not __DJGPP__ >= 2 */ |
| 978 | (stdin)->_flag &= ~_IOTEXT; |
| 979 | (stdout)->_flag &= ~_IOTEXT; |
| 980 | (stderr)->_flag &= ~_IOTEXT; |
| 981 | #endif /* not __DJGPP__ >= 2 */ |
| 982 | #endif /* MSDOS */ |
| 983 | |
| 984 | #ifdef SET_EMACS_PRIORITY |
| 985 | if (emacs_priority) |
| 986 | nice (emacs_priority); |
| 987 | setuid (getuid ()); |
| 988 | #endif /* SET_EMACS_PRIORITY */ |
| 989 | |
| 990 | /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case. |
| 991 | The build procedure uses this while dumping, to ensure that the |
| 992 | dumped Emacs does not have its system locale tables initialized, |
| 993 | as that might cause screwups when the dumped Emacs starts up. */ |
| 994 | { |
| 995 | char *lc_all = getenv ("LC_ALL"); |
| 996 | do_initial_setlocale = ! lc_all || strcmp (lc_all, "C"); |
| 997 | } |
| 998 | |
| 999 | /* Set locale now, so that initial error messages are localized properly. |
| 1000 | fixup_locale must wait until later, since it builds strings. */ |
| 1001 | if (do_initial_setlocale) |
| 1002 | setlocale (LC_ALL, ""); |
| 1003 | |
| 1004 | #ifdef EXTRA_INITIALIZE |
| 1005 | EXTRA_INITIALIZE; |
| 1006 | #endif |
| 1007 | |
| 1008 | inhibit_window_system = 0; |
| 1009 | |
| 1010 | /* Handle the -t switch, which specifies filename to use as terminal. */ |
| 1011 | while (1) |
| 1012 | { |
| 1013 | char *term; |
| 1014 | if (argmatch (argv, argc, "-t", "--terminal", 4, &term, &skip_args)) |
| 1015 | { |
| 1016 | int result; |
| 1017 | emacs_close (0); |
| 1018 | emacs_close (1); |
| 1019 | result = emacs_open (term, O_RDWR, 0); |
| 1020 | if (result < 0) |
| 1021 | { |
| 1022 | char *errstring = strerror (errno); |
| 1023 | fprintf (stderr, "%s: %s: %s\n", argv[0], term, errstring); |
| 1024 | exit (1); |
| 1025 | } |
| 1026 | dup (0); |
| 1027 | if (! isatty (0)) |
| 1028 | { |
| 1029 | fprintf (stderr, "%s: %s: not a tty\n", argv[0], term); |
| 1030 | exit (1); |
| 1031 | } |
| 1032 | fprintf (stderr, "Using %s\n", term); |
| 1033 | #ifdef HAVE_WINDOW_SYSTEM |
| 1034 | inhibit_window_system = 1; /* -t => -nw */ |
| 1035 | #endif |
| 1036 | } |
| 1037 | else |
| 1038 | break; |
| 1039 | } |
| 1040 | |
| 1041 | /* Command line option --no-windows is deprecated and thus not mentioned |
| 1042 | in the manual and usage informations. */ |
| 1043 | if (argmatch (argv, argc, "-nw", "--no-window-system", 6, NULL, &skip_args) |
| 1044 | || argmatch (argv, argc, "-nw", "--no-windows", 6, NULL, &skip_args)) |
| 1045 | inhibit_window_system = 1; |
| 1046 | |
| 1047 | /* Handle the -batch switch, which means don't do interactive display. */ |
| 1048 | noninteractive = 0; |
| 1049 | if (argmatch (argv, argc, "-batch", "--batch", 5, NULL, &skip_args)) |
| 1050 | noninteractive = 1; |
| 1051 | if (argmatch (argv, argc, "-script", "--script", 3, &junk, &skip_args)) |
| 1052 | { |
| 1053 | noninteractive = 1; /* Set batch mode. */ |
| 1054 | /* Convert --script to -l, un-skip it, and sort again so that -l will be |
| 1055 | handled in proper sequence. */ |
| 1056 | argv[skip_args - 1] = "-l"; |
| 1057 | skip_args -= 2; |
| 1058 | sort_args (argc, argv); |
| 1059 | } |
| 1060 | |
| 1061 | /* Handle the --help option, which gives a usage message. */ |
| 1062 | if (argmatch (argv, argc, "-help", "--help", 3, NULL, &skip_args)) |
| 1063 | { |
| 1064 | printf (USAGE1, argv[0]); |
| 1065 | printf (USAGE2); |
| 1066 | printf (USAGE3, bug_reporting_address ()); |
| 1067 | exit (0); |
| 1068 | } |
| 1069 | |
| 1070 | if (! noninteractive) |
| 1071 | { |
| 1072 | #ifdef BSD_PGRPS |
| 1073 | if (initialized) |
| 1074 | { |
| 1075 | inherited_pgroup = EMACS_GETPGRP (0); |
| 1076 | setpgrp (0, getpid ()); |
| 1077 | } |
| 1078 | #else |
| 1079 | #if defined (USG5) && defined (INTERRUPT_INPUT) |
| 1080 | setpgrp (); |
| 1081 | #endif |
| 1082 | #endif |
| 1083 | } |
| 1084 | |
| 1085 | init_signals (); |
| 1086 | |
| 1087 | /* Don't catch SIGHUP if dumping. */ |
| 1088 | if (1 |
| 1089 | #ifndef CANNOT_DUMP |
| 1090 | && initialized |
| 1091 | #endif |
| 1092 | ) |
| 1093 | { |
| 1094 | sigblock (sigmask (SIGHUP)); |
| 1095 | /* In --batch mode, don't catch SIGHUP if already ignored. |
| 1096 | That makes nohup work. */ |
| 1097 | if (! noninteractive |
| 1098 | || signal (SIGHUP, SIG_IGN) != SIG_IGN) |
| 1099 | signal (SIGHUP, fatal_error_signal); |
| 1100 | sigunblock (sigmask (SIGHUP)); |
| 1101 | } |
| 1102 | |
| 1103 | if ( |
| 1104 | #ifndef CANNOT_DUMP |
| 1105 | ! noninteractive || initialized |
| 1106 | #else |
| 1107 | 1 |
| 1108 | #endif |
| 1109 | ) |
| 1110 | { |
| 1111 | /* Don't catch these signals in batch mode if dumping. |
| 1112 | On some machines, this sets static data that would make |
| 1113 | signal fail to work right when the dumped Emacs is run. */ |
| 1114 | signal (SIGQUIT, fatal_error_signal); |
| 1115 | signal (SIGILL, fatal_error_signal); |
| 1116 | signal (SIGTRAP, fatal_error_signal); |
| 1117 | #ifdef SIGUSR1 |
| 1118 | signal (SIGUSR1, handle_USR1_signal); |
| 1119 | #ifdef SIGUSR2 |
| 1120 | signal (SIGUSR2, handle_USR2_signal); |
| 1121 | #endif |
| 1122 | #endif |
| 1123 | #ifdef SIGABRT |
| 1124 | signal (SIGABRT, fatal_error_signal); |
| 1125 | #endif |
| 1126 | #ifdef SIGHWE |
| 1127 | signal (SIGHWE, fatal_error_signal); |
| 1128 | #endif |
| 1129 | #ifdef SIGPRE |
| 1130 | signal (SIGPRE, fatal_error_signal); |
| 1131 | #endif |
| 1132 | #ifdef SIGORE |
| 1133 | signal (SIGORE, fatal_error_signal); |
| 1134 | #endif |
| 1135 | #ifdef SIGUME |
| 1136 | signal (SIGUME, fatal_error_signal); |
| 1137 | #endif |
| 1138 | #ifdef SIGDLK |
| 1139 | signal (SIGDLK, fatal_error_signal); |
| 1140 | #endif |
| 1141 | #ifdef SIGCPULIM |
| 1142 | signal (SIGCPULIM, fatal_error_signal); |
| 1143 | #endif |
| 1144 | #ifdef SIGIOT |
| 1145 | /* This is missing on some systems - OS/2, for example. */ |
| 1146 | signal (SIGIOT, fatal_error_signal); |
| 1147 | #endif |
| 1148 | #ifdef SIGEMT |
| 1149 | signal (SIGEMT, fatal_error_signal); |
| 1150 | #endif |
| 1151 | signal (SIGFPE, fatal_error_signal); |
| 1152 | #ifdef SIGBUS |
| 1153 | signal (SIGBUS, fatal_error_signal); |
| 1154 | #endif |
| 1155 | signal (SIGSEGV, fatal_error_signal); |
| 1156 | #ifdef SIGSYS |
| 1157 | signal (SIGSYS, fatal_error_signal); |
| 1158 | #endif |
| 1159 | signal (SIGTERM, fatal_error_signal); |
| 1160 | #ifdef SIGXCPU |
| 1161 | signal (SIGXCPU, fatal_error_signal); |
| 1162 | #endif |
| 1163 | #ifdef SIGXFSZ |
| 1164 | signal (SIGXFSZ, fatal_error_signal); |
| 1165 | #endif /* SIGXFSZ */ |
| 1166 | |
| 1167 | #ifdef SIGDANGER |
| 1168 | /* This just means available memory is getting low. */ |
| 1169 | signal (SIGDANGER, memory_warning_signal); |
| 1170 | #endif |
| 1171 | |
| 1172 | #ifdef AIX |
| 1173 | /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */ |
| 1174 | signal (SIGXCPU, fatal_error_signal); |
| 1175 | #ifndef _I386 |
| 1176 | signal (SIGIOINT, fatal_error_signal); |
| 1177 | #endif |
| 1178 | signal (SIGGRANT, fatal_error_signal); |
| 1179 | signal (SIGRETRACT, fatal_error_signal); |
| 1180 | signal (SIGSOUND, fatal_error_signal); |
| 1181 | signal (SIGMSG, fatal_error_signal); |
| 1182 | #endif /* AIX */ |
| 1183 | } |
| 1184 | |
| 1185 | noninteractive1 = noninteractive; |
| 1186 | |
| 1187 | /* Perform basic initializations (not merely interning symbols). */ |
| 1188 | |
| 1189 | if (!initialized) |
| 1190 | { |
| 1191 | init_alloc_once (); |
| 1192 | init_obarray (); |
| 1193 | init_eval_once (); |
| 1194 | init_charset_once (); |
| 1195 | init_coding_once (); |
| 1196 | init_syntax_once (); /* Create standard syntax table. */ |
| 1197 | init_category_once (); /* Create standard category table. */ |
| 1198 | /* Must be done before init_buffer. */ |
| 1199 | init_casetab_once (); |
| 1200 | init_buffer_once (); /* Create buffer table and some buffers. */ |
| 1201 | init_minibuf_once (); /* Create list of minibuffers. */ |
| 1202 | /* Must precede init_window_once. */ |
| 1203 | |
| 1204 | /* Call syms_of_xfaces before init_window_once because that |
| 1205 | function creates Vterminal_frame. Termcap frames now use |
| 1206 | faces, and the face implementation uses some symbols as |
| 1207 | face names. */ |
| 1208 | syms_of_xfaces (); |
| 1209 | /* Call syms_of_keyboard before init_window_once because |
| 1210 | keyboard sets up symbols that include some face names that |
| 1211 | the X support will want to use. This can happen when |
| 1212 | CANNOT_DUMP is defined. */ |
| 1213 | syms_of_keyboard (); |
| 1214 | |
| 1215 | #ifdef MAC_OS8 |
| 1216 | /* init_window_once calls make_terminal_frame which on Mac OS |
| 1217 | creates a full-fledge output_mac type frame. This does not |
| 1218 | work correctly before syms_of_textprop, syms_of_macfns, |
| 1219 | syms_of_ccl, syms_of_fontset, syms_of_xterm, syms_of_search, |
| 1220 | syms_of_frame, mac_initialize, and init_keyboard have already |
| 1221 | been called. */ |
| 1222 | syms_of_textprop (); |
| 1223 | syms_of_macfns (); |
| 1224 | syms_of_ccl (); |
| 1225 | syms_of_fontset (); |
| 1226 | syms_of_macterm (); |
| 1227 | syms_of_macmenu (); |
| 1228 | syms_of_data (); |
| 1229 | syms_of_search (); |
| 1230 | syms_of_frame (); |
| 1231 | |
| 1232 | mac_initialize (); |
| 1233 | init_keyboard (); |
| 1234 | #endif |
| 1235 | |
| 1236 | init_window_once (); /* Init the window system. */ |
| 1237 | init_fileio_once (); /* Must precede any path manipulation. */ |
| 1238 | } |
| 1239 | |
| 1240 | init_alloc (); |
| 1241 | |
| 1242 | if (do_initial_setlocale) |
| 1243 | { |
| 1244 | fixup_locale (); |
| 1245 | Vsystem_messages_locale = Vprevious_system_messages_locale; |
| 1246 | Vsystem_time_locale = Vprevious_system_time_locale; |
| 1247 | } |
| 1248 | |
| 1249 | init_eval (); |
| 1250 | init_data (); |
| 1251 | #ifdef CLASH_DETECTION |
| 1252 | init_filelock (); |
| 1253 | #endif |
| 1254 | init_atimer (); |
| 1255 | running_asynch_code = 0; |
| 1256 | |
| 1257 | /* Handle --unibyte and the EMACS_UNIBYTE envvar, |
| 1258 | but not while dumping. */ |
| 1259 | if (1) |
| 1260 | { |
| 1261 | int inhibit_unibyte = 0; |
| 1262 | |
| 1263 | /* --multibyte overrides EMACS_UNIBYTE. */ |
| 1264 | if (argmatch (argv, argc, "-no-unibyte", "--no-unibyte", 4, NULL, &skip_args) |
| 1265 | || argmatch (argv, argc, "-multibyte", "--multibyte", 4, NULL, &skip_args) |
| 1266 | /* Ignore EMACS_UNIBYTE before dumping. */ |
| 1267 | || (!initialized && noninteractive)) |
| 1268 | inhibit_unibyte = 1; |
| 1269 | |
| 1270 | /* --unibyte requests that we set up to do everything with single-byte |
| 1271 | buffers and strings. We need to handle this before calling |
| 1272 | init_lread, init_editfns and other places that generate Lisp strings |
| 1273 | from text in the environment. */ |
| 1274 | /* Actually this shouldn't be needed as of 20.4 in a generally |
| 1275 | unibyte environment. As handa says, environment values |
| 1276 | aren't now decoded; also existing buffers are now made |
| 1277 | unibyte during startup if .emacs sets unibyte. Tested with |
| 1278 | 8-bit data in environment variables and /etc/passwd, setting |
| 1279 | unibyte and Latin-1 in .emacs. -- Dave Love */ |
| 1280 | if (argmatch (argv, argc, "-unibyte", "--unibyte", 4, NULL, &skip_args) |
| 1281 | || argmatch (argv, argc, "-no-multibyte", "--no-multibyte", 4, NULL, &skip_args) |
| 1282 | || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte)) |
| 1283 | { |
| 1284 | Lisp_Object old_log_max; |
| 1285 | Lisp_Object symbol, tail; |
| 1286 | |
| 1287 | symbol = intern ("default-enable-multibyte-characters"); |
| 1288 | Fset (symbol, Qnil); |
| 1289 | |
| 1290 | if (initialized) |
| 1291 | { |
| 1292 | /* Erase pre-dump messages in *Messages* now so no abort. */ |
| 1293 | old_log_max = Vmessage_log_max; |
| 1294 | XSETFASTINT (Vmessage_log_max, 0); |
| 1295 | message_dolog ("", 0, 1, 0); |
| 1296 | Vmessage_log_max = old_log_max; |
| 1297 | } |
| 1298 | |
| 1299 | for (tail = Vbuffer_alist; CONSP (tail); |
| 1300 | tail = XCDR (tail)) |
| 1301 | { |
| 1302 | Lisp_Object buffer; |
| 1303 | |
| 1304 | buffer = Fcdr (XCAR (tail)); |
| 1305 | /* Verify that all buffers are empty now, as they |
| 1306 | ought to be. */ |
| 1307 | if (BUF_Z (XBUFFER (buffer)) > BUF_BEG (XBUFFER (buffer))) |
| 1308 | abort (); |
| 1309 | /* It is safe to do this crudely in an empty buffer. */ |
| 1310 | XBUFFER (buffer)->enable_multibyte_characters = Qnil; |
| 1311 | } |
| 1312 | } |
| 1313 | } |
| 1314 | |
| 1315 | no_loadup |
| 1316 | = argmatch (argv, argc, "-nl", "--no-loadup", 6, NULL, &skip_args); |
| 1317 | |
| 1318 | |
| 1319 | #ifdef HAVE_X_WINDOWS |
| 1320 | /* Stupid kludge to catch command-line display spec. We can't |
| 1321 | handle this argument entirely in window system dependent code |
| 1322 | because we don't even know which window system dependent code |
| 1323 | to run until we've recognized this argument. */ |
| 1324 | { |
| 1325 | char *displayname = 0; |
| 1326 | int count_before = skip_args; |
| 1327 | |
| 1328 | /* Skip any number of -d options, but only use the last one. */ |
| 1329 | while (1) |
| 1330 | { |
| 1331 | int count_before_this = skip_args; |
| 1332 | |
| 1333 | if (argmatch (argv, argc, "-d", "--display", 3, &displayname, &skip_args)) |
| 1334 | display_arg = 1; |
| 1335 | else if (argmatch (argv, argc, "-display", 0, 3, &displayname, &skip_args)) |
| 1336 | display_arg = 1; |
| 1337 | else |
| 1338 | break; |
| 1339 | |
| 1340 | count_before = count_before_this; |
| 1341 | } |
| 1342 | |
| 1343 | /* If we have the form --display=NAME, |
| 1344 | convert it into -d name. |
| 1345 | This requires inserting a new element into argv. */ |
| 1346 | if (displayname != 0 && skip_args - count_before == 1) |
| 1347 | { |
| 1348 | char **new = (char **) xmalloc (sizeof (char *) * (argc + 2)); |
| 1349 | int j; |
| 1350 | |
| 1351 | for (j = 0; j < count_before + 1; j++) |
| 1352 | new[j] = argv[j]; |
| 1353 | new[count_before + 1] = "-d"; |
| 1354 | new[count_before + 2] = displayname; |
| 1355 | for (j = count_before + 2; j <argc; j++) |
| 1356 | new[j + 1] = argv[j]; |
| 1357 | argv = new; |
| 1358 | argc++; |
| 1359 | } |
| 1360 | /* Change --display to -d, when its arg is separate. */ |
| 1361 | else if (displayname != 0 && skip_args > count_before |
| 1362 | && argv[count_before + 1][1] == '-') |
| 1363 | argv[count_before + 1] = "-d"; |
| 1364 | |
| 1365 | /* Don't actually discard this arg. */ |
| 1366 | skip_args = count_before; |
| 1367 | } |
| 1368 | #endif |
| 1369 | |
| 1370 | /* argmatch must not be used after here, |
| 1371 | except when bulding temacs |
| 1372 | because the -d argument has not been skipped in skip_args. */ |
| 1373 | |
| 1374 | #ifdef MSDOS |
| 1375 | /* Call early 'cause init_environment needs it. */ |
| 1376 | init_dosfns (); |
| 1377 | /* Set defaults for several environment variables. */ |
| 1378 | if (initialized) |
| 1379 | init_environment (argc, argv, skip_args); |
| 1380 | else |
| 1381 | tzset (); |
| 1382 | #endif /* MSDOS */ |
| 1383 | |
| 1384 | #ifdef WINDOWSNT |
| 1385 | globals_of_w32 (); |
| 1386 | /* Initialize environment from registry settings. */ |
| 1387 | init_environment (argv); |
| 1388 | init_ntproc (); /* must precede init_editfns. */ |
| 1389 | #endif |
| 1390 | |
| 1391 | #ifdef HAVE_CARBON |
| 1392 | if (initialized) |
| 1393 | init_mac_osx_environment (); |
| 1394 | #endif |
| 1395 | |
| 1396 | /* egetenv is a pretty low-level facility, which may get called in |
| 1397 | many circumstances; it seems flimsy to put off initializing it |
| 1398 | until calling init_callproc. */ |
| 1399 | set_process_environment (); |
| 1400 | /* AIX crashes are reported in system versions 3.2.3 and 3.2.4 |
| 1401 | if this is not done. Do it after set_process_environment so that we |
| 1402 | don't pollute Vprocess_environment. */ |
| 1403 | /* Setting LANG here will defeat the startup locale processing... */ |
| 1404 | #ifdef AIX3_2 |
| 1405 | putenv ("LANG=C"); |
| 1406 | #endif |
| 1407 | |
| 1408 | init_buffer (); /* Init default directory of main buffer. */ |
| 1409 | |
| 1410 | init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */ |
| 1411 | init_cmdargs (argc, argv, skip_args); /* Must precede init_lread. */ |
| 1412 | |
| 1413 | if (initialized) |
| 1414 | { |
| 1415 | /* Erase any pre-dump messages in the message log, to avoid confusion. */ |
| 1416 | Lisp_Object old_log_max; |
| 1417 | old_log_max = Vmessage_log_max; |
| 1418 | XSETFASTINT (Vmessage_log_max, 0); |
| 1419 | message_dolog ("", 0, 1, 0); |
| 1420 | Vmessage_log_max = old_log_max; |
| 1421 | } |
| 1422 | |
| 1423 | init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */ |
| 1424 | init_lread (); |
| 1425 | |
| 1426 | /* Intern the names of all standard functions and variables; |
| 1427 | define standard keys. */ |
| 1428 | |
| 1429 | if (!initialized) |
| 1430 | { |
| 1431 | /* The basic levels of Lisp must come first. */ |
| 1432 | /* And data must come first of all |
| 1433 | for the sake of symbols like error-message. */ |
| 1434 | #ifndef MAC_OS8 |
| 1435 | /* Called before init_window_once for Mac OS Classic. */ |
| 1436 | syms_of_data (); |
| 1437 | #endif |
| 1438 | syms_of_alloc (); |
| 1439 | syms_of_lread (); |
| 1440 | syms_of_print (); |
| 1441 | syms_of_eval (); |
| 1442 | syms_of_fns (); |
| 1443 | syms_of_floatfns (); |
| 1444 | |
| 1445 | syms_of_abbrev (); |
| 1446 | syms_of_buffer (); |
| 1447 | syms_of_bytecode (); |
| 1448 | syms_of_callint (); |
| 1449 | syms_of_casefiddle (); |
| 1450 | syms_of_casetab (); |
| 1451 | syms_of_callproc (); |
| 1452 | syms_of_category (); |
| 1453 | #ifndef MAC_OS8 |
| 1454 | /* Called before init_window_once for Mac OS Classic. */ |
| 1455 | syms_of_ccl (); |
| 1456 | #endif |
| 1457 | syms_of_charset (); |
| 1458 | syms_of_cmds (); |
| 1459 | #ifndef NO_DIR_LIBRARY |
| 1460 | syms_of_dired (); |
| 1461 | #endif /* not NO_DIR_LIBRARY */ |
| 1462 | syms_of_display (); |
| 1463 | syms_of_doc (); |
| 1464 | syms_of_editfns (); |
| 1465 | syms_of_emacs (); |
| 1466 | syms_of_fileio (); |
| 1467 | syms_of_coding (); /* This should be after syms_of_fileio. */ |
| 1468 | #ifdef CLASH_DETECTION |
| 1469 | syms_of_filelock (); |
| 1470 | #endif /* CLASH_DETECTION */ |
| 1471 | syms_of_indent (); |
| 1472 | syms_of_insdel (); |
| 1473 | syms_of_keymap (); |
| 1474 | syms_of_macros (); |
| 1475 | syms_of_marker (); |
| 1476 | syms_of_minibuf (); |
| 1477 | syms_of_process (); |
| 1478 | #ifndef MAC_OS8 |
| 1479 | /* Called before init_window_once for Mac OS Classic. */ |
| 1480 | syms_of_search (); |
| 1481 | syms_of_frame (); |
| 1482 | #endif |
| 1483 | syms_of_syntax (); |
| 1484 | syms_of_term (); |
| 1485 | syms_of_undo (); |
| 1486 | #ifdef HAVE_SOUND |
| 1487 | syms_of_sound (); |
| 1488 | #endif |
| 1489 | #ifndef MAC_OS8 |
| 1490 | /* Called before init_window_once for Mac OS Classic. */ |
| 1491 | syms_of_textprop (); |
| 1492 | #endif |
| 1493 | syms_of_composite (); |
| 1494 | #ifdef VMS |
| 1495 | syms_of_vmsproc (); |
| 1496 | #endif /* VMS */ |
| 1497 | #ifdef WINDOWSNT |
| 1498 | syms_of_ntproc (); |
| 1499 | #endif /* WINDOWSNT */ |
| 1500 | syms_of_window (); |
| 1501 | syms_of_xdisp (); |
| 1502 | #ifdef HAVE_X_WINDOWS |
| 1503 | syms_of_xterm (); |
| 1504 | syms_of_xfns (); |
| 1505 | syms_of_fontset (); |
| 1506 | #ifdef HAVE_X_SM |
| 1507 | syms_of_xsmfns (); |
| 1508 | #endif |
| 1509 | #ifdef HAVE_X11 |
| 1510 | syms_of_xselect (); |
| 1511 | #endif |
| 1512 | #endif /* HAVE_X_WINDOWS */ |
| 1513 | |
| 1514 | #ifndef HAVE_NTGUI |
| 1515 | #ifndef MAC_OS |
| 1516 | /* Called before init_window_once for Mac OS Classic. */ |
| 1517 | syms_of_xmenu (); |
| 1518 | #endif |
| 1519 | #endif |
| 1520 | |
| 1521 | #ifdef HAVE_NTGUI |
| 1522 | syms_of_w32term (); |
| 1523 | syms_of_w32fns (); |
| 1524 | syms_of_w32select (); |
| 1525 | syms_of_w32menu (); |
| 1526 | syms_of_fontset (); |
| 1527 | #endif /* HAVE_NTGUI */ |
| 1528 | |
| 1529 | #ifdef HAVE_CARBON |
| 1530 | syms_of_macterm (); |
| 1531 | syms_of_macfns (); |
| 1532 | syms_of_macmenu (); |
| 1533 | syms_of_fontset (); |
| 1534 | #endif /* HAVE_CARBON */ |
| 1535 | |
| 1536 | #ifdef SYMS_SYSTEM |
| 1537 | SYMS_SYSTEM; |
| 1538 | #endif |
| 1539 | |
| 1540 | #ifdef SYMS_MACHINE |
| 1541 | SYMS_MACHINE; |
| 1542 | #endif |
| 1543 | |
| 1544 | keys_of_casefiddle (); |
| 1545 | keys_of_cmds (); |
| 1546 | keys_of_buffer (); |
| 1547 | keys_of_keyboard (); |
| 1548 | keys_of_keymap (); |
| 1549 | keys_of_minibuf (); |
| 1550 | keys_of_window (); |
| 1551 | } |
| 1552 | else |
| 1553 | { |
| 1554 | /* |
| 1555 | Initialization that must be done even if the global variable |
| 1556 | initialized is non zero |
| 1557 | */ |
| 1558 | #ifdef HAVE_NTGUI |
| 1559 | globals_of_w32fns (); |
| 1560 | globals_of_w32menu (); |
| 1561 | #endif /* end #ifdef HAVE_NTGUI */ |
| 1562 | } |
| 1563 | |
| 1564 | if (!noninteractive) |
| 1565 | { |
| 1566 | #ifdef VMS |
| 1567 | init_vms_input ();/* init_display calls get_frame_size, that needs this. */ |
| 1568 | #endif /* VMS */ |
| 1569 | init_display (); /* Determine terminal type. init_sys_modes uses results. */ |
| 1570 | } |
| 1571 | #ifndef MAC_OS8 |
| 1572 | /* Called before init_window_once for Mac OS Classic. */ |
| 1573 | init_keyboard (); /* This too must precede init_sys_modes. */ |
| 1574 | #endif |
| 1575 | #ifdef VMS |
| 1576 | init_vmsproc (); /* And this too. */ |
| 1577 | #endif /* VMS */ |
| 1578 | init_sys_modes (); /* Init system terminal modes (RAW or CBREAK, etc.). */ |
| 1579 | #if defined (HAVE_X_WINDOWS) || defined (WINDOWSNT) |
| 1580 | init_xfns (); |
| 1581 | #endif /* HAVE_X_WINDOWS */ |
| 1582 | init_fns (); |
| 1583 | init_xdisp (); |
| 1584 | init_macros (); |
| 1585 | init_editfns (); |
| 1586 | init_floatfns (); |
| 1587 | #ifdef VMS |
| 1588 | init_vmsfns (); |
| 1589 | #endif /* VMS */ |
| 1590 | init_process (); |
| 1591 | #ifdef HAVE_SOUND |
| 1592 | init_sound (); |
| 1593 | #endif |
| 1594 | init_window (); |
| 1595 | |
| 1596 | if (!initialized) |
| 1597 | { |
| 1598 | char *file; |
| 1599 | /* Handle -l loadup, args passed by Makefile. */ |
| 1600 | if (argmatch (argv, argc, "-l", "--load", 3, &file, &skip_args)) |
| 1601 | Vtop_level = Fcons (intern ("load"), |
| 1602 | Fcons (build_string (file), Qnil)); |
| 1603 | /* Unless next switch is -nl, load "loadup.el" first thing. */ |
| 1604 | if (! no_loadup) |
| 1605 | Vtop_level = Fcons (intern ("load"), |
| 1606 | Fcons (build_string ("loadup.el"), Qnil)); |
| 1607 | } |
| 1608 | |
| 1609 | if (initialized) |
| 1610 | { |
| 1611 | #ifdef HAVE_TZSET |
| 1612 | { |
| 1613 | /* If the execution TZ happens to be the same as the dump TZ, |
| 1614 | change it to some other value and then change it back, |
| 1615 | to force the underlying implementation to reload the TZ info. |
| 1616 | This is needed on implementations that load TZ info from files, |
| 1617 | since the TZ file contents may differ between dump and execution. */ |
| 1618 | char *tz = getenv ("TZ"); |
| 1619 | if (tz && !strcmp (tz, dump_tz)) |
| 1620 | { |
| 1621 | ++*tz; |
| 1622 | tzset (); |
| 1623 | --*tz; |
| 1624 | } |
| 1625 | } |
| 1626 | #endif |
| 1627 | } |
| 1628 | |
| 1629 | /* Set up for profiling. This is known to work on FreeBSD and |
| 1630 | GNU/Linux. It might work on some other systems too. Give it a |
| 1631 | try and tell us if it works on your system. To compile for |
| 1632 | profiling use something like `make CFLAGS="-pg -g -O -DPROFILING=1'. */ |
| 1633 | #if defined (__FreeBSD__) || defined (__linux) |
| 1634 | #ifdef PROFILING |
| 1635 | if (initialized) |
| 1636 | { |
| 1637 | extern void _mcleanup (); |
| 1638 | extern char etext; |
| 1639 | extern void safe_bcopy (); |
| 1640 | extern void dump_opcode_frequencies (); |
| 1641 | |
| 1642 | atexit (_mcleanup); |
| 1643 | /* This uses safe_bcopy because that function comes first in the |
| 1644 | Emacs executable. It might be better to use something that |
| 1645 | gives the start of the text segment, but start_of_text is not |
| 1646 | defined on all systems now. */ |
| 1647 | monstartup (safe_bcopy, &etext); |
| 1648 | } |
| 1649 | else |
| 1650 | moncontrol (0); |
| 1651 | #endif |
| 1652 | #endif |
| 1653 | |
| 1654 | initialized = 1; |
| 1655 | |
| 1656 | #ifdef LOCALTIME_CACHE |
| 1657 | /* Some versions of localtime have a bug. They cache the value of the time |
| 1658 | zone rather than looking it up every time. Since localtime() is |
| 1659 | called to bolt the undumping time into the undumped emacs, this |
| 1660 | results in localtime ignoring the TZ environment variable. |
| 1661 | This flushes the new TZ value into localtime. */ |
| 1662 | tzset (); |
| 1663 | #endif /* defined (LOCALTIME_CACHE) */ |
| 1664 | |
| 1665 | /* Enter editor command loop. This never returns. */ |
| 1666 | Frecursive_edit (); |
| 1667 | /* NOTREACHED */ |
| 1668 | return 0; |
| 1669 | } |
| 1670 | \f |
| 1671 | /* Sort the args so we can find the most important ones |
| 1672 | at the beginning of argv. */ |
| 1673 | |
| 1674 | /* First, here's a table of all the standard options. */ |
| 1675 | |
| 1676 | struct standard_args |
| 1677 | { |
| 1678 | char *name; |
| 1679 | char *longname; |
| 1680 | int priority; |
| 1681 | int nargs; |
| 1682 | }; |
| 1683 | |
| 1684 | struct standard_args standard_args[] = |
| 1685 | { |
| 1686 | { "-version", "--version", 150, 0 }, |
| 1687 | #ifdef HAVE_SHM |
| 1688 | { "-nl", "--no-shared-memory", 140, 0 }, |
| 1689 | #endif |
| 1690 | #ifdef VMS |
| 1691 | { "-map", "--map-data", 130, 0 }, |
| 1692 | #endif |
| 1693 | { "-t", "--terminal", 120, 1 }, |
| 1694 | { "-nw", "--no-window-system", 110, 0 }, |
| 1695 | { "-nw", "--no-windows", 110, 0 }, |
| 1696 | { "-batch", "--batch", 100, 0 }, |
| 1697 | { "-script", "--script", 100, 1 }, |
| 1698 | { "-help", "--help", 90, 0 }, |
| 1699 | { "-no-unibyte", "--no-unibyte", 83, 0 }, |
| 1700 | { "-multibyte", "--multibyte", 82, 0 }, |
| 1701 | { "-unibyte", "--unibyte", 81, 0 }, |
| 1702 | { "-no-multibyte", "--no-multibyte", 80, 0 }, |
| 1703 | { "-nl", "--no-loadup", 70, 0 }, |
| 1704 | /* -d must come last before the options handled in startup.el. */ |
| 1705 | { "-d", "--display", 60, 1 }, |
| 1706 | { "-display", 0, 60, 1 }, |
| 1707 | /* Now for the options handled in startup.el. */ |
| 1708 | { "-q", "--no-init-file", 50, 0 }, |
| 1709 | { "-no-init-file", 0, 50, 0 }, |
| 1710 | { "-no-site-file", "--no-site-file", 40, 0 }, |
| 1711 | { "-no-splash", "--no-splash", 40, 0 }, |
| 1712 | { "-u", "--user", 30, 1 }, |
| 1713 | { "-user", 0, 30, 1 }, |
| 1714 | { "-debug-init", "--debug-init", 20, 0 }, |
| 1715 | { "-i", "--icon-type", 15, 0 }, |
| 1716 | { "-itype", 0, 15, 0 }, |
| 1717 | { "-iconic", "--iconic", 15, 0 }, |
| 1718 | { "-bg", "--background-color", 10, 1 }, |
| 1719 | { "-background", 0, 10, 1 }, |
| 1720 | { "-fg", "--foreground-color", 10, 1 }, |
| 1721 | { "-foreground", 0, 10, 1 }, |
| 1722 | { "-bd", "--border-color", 10, 1 }, |
| 1723 | { "-bw", "--border-width", 10, 1 }, |
| 1724 | { "-ib", "--internal-border", 10, 1 }, |
| 1725 | { "-ms", "--mouse-color", 10, 1 }, |
| 1726 | { "-cr", "--cursor-color", 10, 1 }, |
| 1727 | { "-fn", "--font", 10, 1 }, |
| 1728 | { "-font", 0, 10, 1 }, |
| 1729 | { "-fs", "--fullscreen", 10, 0 }, |
| 1730 | { "-fw", "--fullwidth", 10, 0 }, |
| 1731 | { "-fh", "--fullheight", 10, 0 }, |
| 1732 | { "-g", "--geometry", 10, 1 }, |
| 1733 | { "-geometry", 0, 10, 1 }, |
| 1734 | { "-T", "--title", 10, 1 }, |
| 1735 | { "-title", 0, 10, 1 }, |
| 1736 | { "-name", "--name", 10, 1 }, |
| 1737 | { "-xrm", "--xrm", 10, 1 }, |
| 1738 | { "-r", "--reverse-video", 5, 0 }, |
| 1739 | { "-rv", 0, 5, 0 }, |
| 1740 | { "-reverse", 0, 5, 0 }, |
| 1741 | { "-hb", "--horizontal-scroll-bars", 5, 0 }, |
| 1742 | { "-vb", "--vertical-scroll-bars", 5, 0 }, |
| 1743 | { "-color", "--color", 5, 0}, |
| 1744 | /* These have the same priority as ordinary file name args, |
| 1745 | so they are not reordered with respect to those. */ |
| 1746 | { "-L", "--directory", 0, 1 }, |
| 1747 | { "-directory", 0, 0, 1 }, |
| 1748 | { "-l", "--load", 0, 1 }, |
| 1749 | { "-load", 0, 0, 1 }, |
| 1750 | { "-f", "--funcall", 0, 1 }, |
| 1751 | { "-funcall", 0, 0, 1 }, |
| 1752 | { "-eval", "--eval", 0, 1 }, |
| 1753 | { "-execute", "--execute", 0, 1 }, |
| 1754 | { "-find-file", "--find-file", 0, 1 }, |
| 1755 | { "-visit", "--visit", 0, 1 }, |
| 1756 | { "-file", "--file", 0, 1 }, |
| 1757 | { "-insert", "--insert", 0, 1 }, |
| 1758 | /* This should be processed after ordinary file name args and the like. */ |
| 1759 | { "-kill", "--kill", -10, 0 }, |
| 1760 | }; |
| 1761 | |
| 1762 | /* Reorder the elements of ARGV (assumed to have ARGC elements) |
| 1763 | so that the highest priority ones come first. |
| 1764 | Do not change the order of elements of equal priority. |
| 1765 | If an option takes an argument, keep it and its argument together. |
| 1766 | |
| 1767 | If an option that takes no argument appears more |
| 1768 | than once, eliminate all but one copy of it. */ |
| 1769 | |
| 1770 | static void |
| 1771 | sort_args (argc, argv) |
| 1772 | int argc; |
| 1773 | char **argv; |
| 1774 | { |
| 1775 | char **new = (char **) xmalloc (sizeof (char *) * argc); |
| 1776 | /* For each element of argv, |
| 1777 | the corresponding element of options is: |
| 1778 | 0 for an option that takes no arguments, |
| 1779 | 1 for an option that takes one argument, etc. |
| 1780 | -1 for an ordinary non-option argument. */ |
| 1781 | int *options = (int *) xmalloc (sizeof (int) * argc); |
| 1782 | int *priority = (int *) xmalloc (sizeof (int) * argc); |
| 1783 | int to = 1; |
| 1784 | int incoming_used = 1; |
| 1785 | int from; |
| 1786 | int i; |
| 1787 | |
| 1788 | /* Categorize all the options, |
| 1789 | and figure out which argv elts are option arguments. */ |
| 1790 | for (from = 1; from < argc; from++) |
| 1791 | { |
| 1792 | options[from] = -1; |
| 1793 | priority[from] = 0; |
| 1794 | if (argv[from][0] == '-') |
| 1795 | { |
| 1796 | int match, thislen; |
| 1797 | char *equals; |
| 1798 | |
| 1799 | /* If we have found "--", don't consider |
| 1800 | any more arguments as options. */ |
| 1801 | if (argv[from][1] == '-' && argv[from][2] == 0) |
| 1802 | { |
| 1803 | /* Leave the "--", and everything following it, at the end. */ |
| 1804 | for (; from < argc; from++) |
| 1805 | { |
| 1806 | priority[from] = -100; |
| 1807 | options[from] = -1; |
| 1808 | } |
| 1809 | break; |
| 1810 | } |
| 1811 | |
| 1812 | /* Look for a match with a known old-fashioned option. */ |
| 1813 | for (i = 0; i < sizeof (standard_args) / sizeof (standard_args[0]); i++) |
| 1814 | if (!strcmp (argv[from], standard_args[i].name)) |
| 1815 | { |
| 1816 | options[from] = standard_args[i].nargs; |
| 1817 | priority[from] = standard_args[i].priority; |
| 1818 | if (from + standard_args[i].nargs >= argc) |
| 1819 | fatal ("Option `%s' requires an argument\n", argv[from]); |
| 1820 | from += standard_args[i].nargs; |
| 1821 | goto done; |
| 1822 | } |
| 1823 | |
| 1824 | /* Look for a match with a known long option. |
| 1825 | MATCH is -1 if no match so far, -2 if two or more matches so far, |
| 1826 | >= 0 (the table index of the match) if just one match so far. */ |
| 1827 | if (argv[from][1] == '-') |
| 1828 | { |
| 1829 | match = -1; |
| 1830 | thislen = strlen (argv[from]); |
| 1831 | equals = index (argv[from], '='); |
| 1832 | if (equals != 0) |
| 1833 | thislen = equals - argv[from]; |
| 1834 | |
| 1835 | for (i = 0; |
| 1836 | i < sizeof (standard_args) / sizeof (standard_args[0]); i++) |
| 1837 | if (standard_args[i].longname |
| 1838 | && !strncmp (argv[from], standard_args[i].longname, |
| 1839 | thislen)) |
| 1840 | { |
| 1841 | if (match == -1) |
| 1842 | match = i; |
| 1843 | else |
| 1844 | match = -2; |
| 1845 | } |
| 1846 | |
| 1847 | /* If we found exactly one match, use that. */ |
| 1848 | if (match >= 0) |
| 1849 | { |
| 1850 | options[from] = standard_args[match].nargs; |
| 1851 | priority[from] = standard_args[match].priority; |
| 1852 | /* If --OPTION=VALUE syntax is used, |
| 1853 | this option uses just one argv element. */ |
| 1854 | if (equals != 0) |
| 1855 | options[from] = 0; |
| 1856 | if (from + options[from] >= argc) |
| 1857 | fatal ("Option `%s' requires an argument\n", argv[from]); |
| 1858 | from += options[from]; |
| 1859 | } |
| 1860 | } |
| 1861 | done: ; |
| 1862 | } |
| 1863 | } |
| 1864 | |
| 1865 | /* Copy the arguments, in order of decreasing priority, to NEW. */ |
| 1866 | new[0] = argv[0]; |
| 1867 | while (incoming_used < argc) |
| 1868 | { |
| 1869 | int best = -1; |
| 1870 | int best_priority = -9999; |
| 1871 | |
| 1872 | /* Find the highest priority remaining option. |
| 1873 | If several have equal priority, take the first of them. */ |
| 1874 | for (from = 1; from < argc; from++) |
| 1875 | { |
| 1876 | if (argv[from] != 0 && priority[from] > best_priority) |
| 1877 | { |
| 1878 | best_priority = priority[from]; |
| 1879 | best = from; |
| 1880 | } |
| 1881 | /* Skip option arguments--they are tied to the options. */ |
| 1882 | if (options[from] > 0) |
| 1883 | from += options[from]; |
| 1884 | } |
| 1885 | |
| 1886 | if (best < 0) |
| 1887 | abort (); |
| 1888 | |
| 1889 | /* Copy the highest priority remaining option, with its args, to NEW. |
| 1890 | Unless it is a duplicate of the previous one. */ |
| 1891 | if (! (options[best] == 0 |
| 1892 | && ! strcmp (new[to - 1], argv[best]))) |
| 1893 | { |
| 1894 | new[to++] = argv[best]; |
| 1895 | for (i = 0; i < options[best]; i++) |
| 1896 | new[to++] = argv[best + i + 1]; |
| 1897 | } |
| 1898 | |
| 1899 | incoming_used += 1 + (options[best] > 0 ? options[best] : 0); |
| 1900 | |
| 1901 | /* Clear out this option in ARGV. */ |
| 1902 | argv[best] = 0; |
| 1903 | for (i = 0; i < options[best]; i++) |
| 1904 | argv[best + i + 1] = 0; |
| 1905 | } |
| 1906 | |
| 1907 | /* If duplicate options were deleted, fill up extra space with null ptrs. */ |
| 1908 | while (to < argc) |
| 1909 | new[to++] = 0; |
| 1910 | |
| 1911 | bcopy (new, argv, sizeof (char *) * argc); |
| 1912 | |
| 1913 | free (options); |
| 1914 | free (new); |
| 1915 | free (priority); |
| 1916 | } |
| 1917 | \f |
| 1918 | DEFUN ("kill-emacs", Fkill_emacs, Skill_emacs, 0, 1, "P", |
| 1919 | doc: /* Exit the Emacs job and kill it. |
| 1920 | If ARG is an integer, return ARG as the exit program code. |
| 1921 | If ARG is a string, stuff it as keyboard input. |
| 1922 | |
| 1923 | The value of `kill-emacs-hook', if not void, |
| 1924 | is a list of functions (of no args), |
| 1925 | all of which are called before Emacs is actually killed. */) |
| 1926 | (arg) |
| 1927 | Lisp_Object arg; |
| 1928 | { |
| 1929 | struct gcpro gcpro1; |
| 1930 | |
| 1931 | GCPRO1 (arg); |
| 1932 | |
| 1933 | if (feof (stdin)) |
| 1934 | arg = Qt; |
| 1935 | |
| 1936 | if (!NILP (Vrun_hooks) && !noninteractive) |
| 1937 | call1 (Vrun_hooks, intern ("kill-emacs-hook")); |
| 1938 | |
| 1939 | UNGCPRO; |
| 1940 | |
| 1941 | /* Is it really necessary to do this deassign |
| 1942 | when we are going to exit anyway? */ |
| 1943 | /* #ifdef VMS |
| 1944 | stop_vms_input (); |
| 1945 | #endif */ |
| 1946 | |
| 1947 | shut_down_emacs (0, 0, STRINGP (arg) ? arg : Qnil); |
| 1948 | |
| 1949 | /* If we have an auto-save list file, |
| 1950 | kill it because we are exiting Emacs deliberately (not crashing). |
| 1951 | Do it after shut_down_emacs, which does an auto-save. */ |
| 1952 | if (STRINGP (Vauto_save_list_file_name)) |
| 1953 | unlink (SDATA (Vauto_save_list_file_name)); |
| 1954 | |
| 1955 | exit (INTEGERP (arg) ? XINT (arg) |
| 1956 | #ifdef VMS |
| 1957 | : 1 |
| 1958 | #else |
| 1959 | : 0 |
| 1960 | #endif |
| 1961 | ); |
| 1962 | /* NOTREACHED */ |
| 1963 | } |
| 1964 | |
| 1965 | |
| 1966 | /* Perform an orderly shutdown of Emacs. Autosave any modified |
| 1967 | buffers, kill any child processes, clean up the terminal modes (if |
| 1968 | we're in the foreground), and other stuff like that. Don't perform |
| 1969 | any redisplay; this may be called when Emacs is shutting down in |
| 1970 | the background, or after its X connection has died. |
| 1971 | |
| 1972 | If SIG is a signal number, print a message for it. |
| 1973 | |
| 1974 | This is called by fatal signal handlers, X protocol error handlers, |
| 1975 | and Fkill_emacs. */ |
| 1976 | |
| 1977 | void |
| 1978 | shut_down_emacs (sig, no_x, stuff) |
| 1979 | int sig, no_x; |
| 1980 | Lisp_Object stuff; |
| 1981 | { |
| 1982 | /* Prevent running of hooks from now on. */ |
| 1983 | Vrun_hooks = Qnil; |
| 1984 | |
| 1985 | /* If we are controlling the terminal, reset terminal modes. */ |
| 1986 | #ifdef EMACS_HAVE_TTY_PGRP |
| 1987 | { |
| 1988 | int pgrp = EMACS_GETPGRP (0); |
| 1989 | |
| 1990 | int tpgrp; |
| 1991 | if (EMACS_GET_TTY_PGRP (0, &tpgrp) != -1 |
| 1992 | && tpgrp == pgrp) |
| 1993 | { |
| 1994 | fflush (stdout); |
| 1995 | reset_sys_modes (); |
| 1996 | if (sig && sig != SIGTERM) |
| 1997 | fprintf (stderr, "Fatal error (%d).", sig); |
| 1998 | } |
| 1999 | } |
| 2000 | #else |
| 2001 | fflush (stdout); |
| 2002 | reset_sys_modes (); |
| 2003 | #endif |
| 2004 | |
| 2005 | stuff_buffered_input (stuff); |
| 2006 | |
| 2007 | kill_buffer_processes (Qnil); |
| 2008 | Fdo_auto_save (Qt, Qnil); |
| 2009 | |
| 2010 | #ifdef CLASH_DETECTION |
| 2011 | unlock_all_files (); |
| 2012 | #endif |
| 2013 | |
| 2014 | #ifdef VMS |
| 2015 | kill_vms_processes (); |
| 2016 | #endif |
| 2017 | |
| 2018 | #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */ |
| 2019 | #ifdef HAVE_X_WINDOWS |
| 2020 | /* It's not safe to call intern here. Maybe we are crashing. */ |
| 2021 | if (!noninteractive && SYMBOLP (Vwindow_system) |
| 2022 | && SCHARS (SYMBOL_NAME (Vwindow_system)) == 1 |
| 2023 | && SREF (SYMBOL_NAME (Vwindow_system), 0) == 'x' |
| 2024 | && ! no_x) |
| 2025 | Fx_close_current_connection (); |
| 2026 | #endif /* HAVE_X_WINDOWS */ |
| 2027 | #endif |
| 2028 | |
| 2029 | #ifdef SIGIO |
| 2030 | /* There is a tendency for a SIGIO signal to arrive within exit, |
| 2031 | and cause a SIGHUP because the input descriptor is already closed. */ |
| 2032 | unrequest_sigio (); |
| 2033 | signal (SIGIO, SIG_IGN); |
| 2034 | #endif |
| 2035 | |
| 2036 | #ifdef WINDOWSNT |
| 2037 | term_ntproc (); |
| 2038 | #endif |
| 2039 | |
| 2040 | /* Do this only if terminating normally, we want glyph matrices |
| 2041 | etc. in a core dump. */ |
| 2042 | if (sig == 0 || sig == SIGTERM) |
| 2043 | { |
| 2044 | check_glyph_memory (); |
| 2045 | check_message_stack (); |
| 2046 | } |
| 2047 | |
| 2048 | #ifdef MSDOS |
| 2049 | dos_cleanup (); |
| 2050 | #endif |
| 2051 | } |
| 2052 | |
| 2053 | |
| 2054 | \f |
| 2055 | #ifndef CANNOT_DUMP |
| 2056 | |
| 2057 | #ifdef HAVE_SHM |
| 2058 | |
| 2059 | DEFUN ("dump-emacs-data", Fdump_emacs_data, Sdump_emacs_data, 1, 1, 0, |
| 2060 | doc: /* Dump current state of Emacs into data file FILENAME. |
| 2061 | This function exists on systems that use HAVE_SHM. */) |
| 2062 | (filename) |
| 2063 | Lisp_Object filename; |
| 2064 | { |
| 2065 | extern char my_edata[]; |
| 2066 | Lisp_Object tem; |
| 2067 | |
| 2068 | check_pure_size (); |
| 2069 | CHECK_STRING (filename); |
| 2070 | filename = Fexpand_file_name (filename, Qnil); |
| 2071 | |
| 2072 | tem = Vpurify_flag; |
| 2073 | Vpurify_flag = Qnil; |
| 2074 | |
| 2075 | fflush (stdout); |
| 2076 | /* Tell malloc where start of impure now is. */ |
| 2077 | /* Also arrange for warnings when nearly out of space. */ |
| 2078 | #ifndef SYSTEM_MALLOC |
| 2079 | memory_warnings (my_edata, malloc_warning); |
| 2080 | #endif |
| 2081 | map_out_data (SDATA (filename)); |
| 2082 | |
| 2083 | Vpurify_flag = tem; |
| 2084 | |
| 2085 | return Qnil; |
| 2086 | } |
| 2087 | |
| 2088 | #else /* not HAVE_SHM */ |
| 2089 | |
| 2090 | DEFUN ("dump-emacs", Fdump_emacs, Sdump_emacs, 2, 2, 0, |
| 2091 | doc: /* Dump current state of Emacs into executable file FILENAME. |
| 2092 | Take symbols from SYMFILE (presumably the file you executed to run Emacs). |
| 2093 | This is used in the file `loadup.el' when building Emacs. |
| 2094 | |
| 2095 | You must run Emacs in batch mode in order to dump it. */) |
| 2096 | (filename, symfile) |
| 2097 | Lisp_Object filename, symfile; |
| 2098 | { |
| 2099 | extern char my_edata[]; |
| 2100 | Lisp_Object tem; |
| 2101 | Lisp_Object symbol; |
| 2102 | int count = SPECPDL_INDEX (); |
| 2103 | |
| 2104 | check_pure_size (); |
| 2105 | |
| 2106 | if (! noninteractive) |
| 2107 | error ("Dumping Emacs works only in batch mode"); |
| 2108 | |
| 2109 | /* Bind `command-line-processed' to nil before dumping, |
| 2110 | so that the dumped Emacs will process its command line |
| 2111 | and set up to work with X windows if appropriate. */ |
| 2112 | symbol = intern ("command-line-processed"); |
| 2113 | specbind (symbol, Qnil); |
| 2114 | |
| 2115 | CHECK_STRING (filename); |
| 2116 | filename = Fexpand_file_name (filename, Qnil); |
| 2117 | if (!NILP (symfile)) |
| 2118 | { |
| 2119 | CHECK_STRING (symfile); |
| 2120 | if (SCHARS (symfile)) |
| 2121 | symfile = Fexpand_file_name (symfile, Qnil); |
| 2122 | } |
| 2123 | |
| 2124 | tem = Vpurify_flag; |
| 2125 | Vpurify_flag = Qnil; |
| 2126 | |
| 2127 | #ifdef HAVE_TZSET |
| 2128 | set_time_zone_rule (dump_tz); |
| 2129 | #ifndef LOCALTIME_CACHE |
| 2130 | /* Force a tz reload, since set_time_zone_rule doesn't. */ |
| 2131 | tzset (); |
| 2132 | #endif |
| 2133 | #endif |
| 2134 | |
| 2135 | fflush (stdout); |
| 2136 | #ifdef VMS |
| 2137 | mapout_data (SDATA (filename)); |
| 2138 | #else |
| 2139 | /* Tell malloc where start of impure now is. */ |
| 2140 | /* Also arrange for warnings when nearly out of space. */ |
| 2141 | #ifndef SYSTEM_MALLOC |
| 2142 | #ifndef WINDOWSNT |
| 2143 | /* On Windows, this was done before dumping, and that once suffices. |
| 2144 | Meanwhile, my_edata is not valid on Windows. */ |
| 2145 | memory_warnings (my_edata, malloc_warning); |
| 2146 | #endif /* not WINDOWSNT */ |
| 2147 | #endif |
| 2148 | #ifdef DOUG_LEA_MALLOC |
| 2149 | malloc_state_ptr = malloc_get_state (); |
| 2150 | #endif |
| 2151 | |
| 2152 | #ifdef USE_MMAP_FOR_BUFFERS |
| 2153 | mmap_set_vars (0); |
| 2154 | #endif |
| 2155 | unexec (SDATA (filename), |
| 2156 | !NILP (symfile) ? SDATA (symfile) : 0, my_edata, 0, 0); |
| 2157 | #ifdef USE_MMAP_FOR_BUFFERS |
| 2158 | mmap_set_vars (1); |
| 2159 | #endif |
| 2160 | #ifdef DOUG_LEA_MALLOC |
| 2161 | free (malloc_state_ptr); |
| 2162 | #endif |
| 2163 | #endif /* not VMS */ |
| 2164 | |
| 2165 | Vpurify_flag = tem; |
| 2166 | |
| 2167 | return unbind_to (count, Qnil); |
| 2168 | } |
| 2169 | |
| 2170 | #endif /* not HAVE_SHM */ |
| 2171 | |
| 2172 | #endif /* not CANNOT_DUMP */ |
| 2173 | \f |
| 2174 | #if HAVE_SETLOCALE |
| 2175 | /* Recover from setlocale (LC_ALL, ""). */ |
| 2176 | void |
| 2177 | fixup_locale () |
| 2178 | { |
| 2179 | /* The Emacs Lisp reader needs LC_NUMERIC to be "C", |
| 2180 | so that numbers are read and printed properly for Emacs Lisp. */ |
| 2181 | setlocale (LC_NUMERIC, "C"); |
| 2182 | } |
| 2183 | |
| 2184 | /* Set system locale CATEGORY, with previous locale *PLOCALE, to |
| 2185 | DESIRED_LOCALE. */ |
| 2186 | static void |
| 2187 | synchronize_locale (category, plocale, desired_locale) |
| 2188 | int category; |
| 2189 | Lisp_Object *plocale; |
| 2190 | Lisp_Object desired_locale; |
| 2191 | { |
| 2192 | if (! EQ (*plocale, desired_locale)) |
| 2193 | { |
| 2194 | *plocale = desired_locale; |
| 2195 | setlocale (category, (STRINGP (desired_locale) |
| 2196 | ? (char *)(SDATA (desired_locale)) |
| 2197 | : "")); |
| 2198 | } |
| 2199 | } |
| 2200 | |
| 2201 | /* Set system time locale to match Vsystem_time_locale, if possible. */ |
| 2202 | void |
| 2203 | synchronize_system_time_locale () |
| 2204 | { |
| 2205 | synchronize_locale (LC_TIME, &Vprevious_system_time_locale, |
| 2206 | Vsystem_time_locale); |
| 2207 | } |
| 2208 | |
| 2209 | /* Set system messages locale to match Vsystem_messages_locale, if |
| 2210 | possible. */ |
| 2211 | void |
| 2212 | synchronize_system_messages_locale () |
| 2213 | { |
| 2214 | #ifdef LC_MESSAGES |
| 2215 | synchronize_locale (LC_MESSAGES, &Vprevious_system_messages_locale, |
| 2216 | Vsystem_messages_locale); |
| 2217 | #endif |
| 2218 | } |
| 2219 | #endif /* HAVE_SETLOCALE */ |
| 2220 | \f |
| 2221 | #ifndef SEPCHAR |
| 2222 | #define SEPCHAR ':' |
| 2223 | #endif |
| 2224 | |
| 2225 | Lisp_Object |
| 2226 | decode_env_path (evarname, defalt) |
| 2227 | char *evarname, *defalt; |
| 2228 | { |
| 2229 | register char *path, *p; |
| 2230 | Lisp_Object lpath, element, tem; |
| 2231 | |
| 2232 | /* It's okay to use getenv here, because this function is only used |
| 2233 | to initialize variables when Emacs starts up, and isn't called |
| 2234 | after that. */ |
| 2235 | if (evarname != 0) |
| 2236 | path = (char *) getenv (evarname); |
| 2237 | else |
| 2238 | path = 0; |
| 2239 | if (!path) |
| 2240 | path = defalt; |
| 2241 | #ifdef DOS_NT |
| 2242 | /* Ensure values from the environment use the proper directory separator. */ |
| 2243 | if (path) |
| 2244 | { |
| 2245 | p = alloca (strlen (path) + 1); |
| 2246 | strcpy (p, path); |
| 2247 | path = p; |
| 2248 | |
| 2249 | if ('/' == DIRECTORY_SEP) |
| 2250 | dostounix_filename (path); |
| 2251 | else |
| 2252 | unixtodos_filename (path); |
| 2253 | } |
| 2254 | #endif |
| 2255 | lpath = Qnil; |
| 2256 | while (1) |
| 2257 | { |
| 2258 | p = index (path, SEPCHAR); |
| 2259 | if (!p) p = path + strlen (path); |
| 2260 | element = (p - path ? make_string (path, p - path) |
| 2261 | : build_string (".")); |
| 2262 | |
| 2263 | /* Add /: to the front of the name |
| 2264 | if it would otherwise be treated as magic. */ |
| 2265 | tem = Ffind_file_name_handler (element, Qt); |
| 2266 | |
| 2267 | /* However, if the handler says "I'm safe", |
| 2268 | don't bother adding /:. */ |
| 2269 | if (SYMBOLP (tem)) |
| 2270 | { |
| 2271 | Lisp_Object prop; |
| 2272 | prop = Fget (tem, intern ("safe-magic")); |
| 2273 | if (! NILP (prop)) |
| 2274 | tem = Qnil; |
| 2275 | } |
| 2276 | |
| 2277 | if (! NILP (tem)) |
| 2278 | element = concat2 (build_string ("/:"), element); |
| 2279 | |
| 2280 | lpath = Fcons (element, lpath); |
| 2281 | if (*p) |
| 2282 | path = p + 1; |
| 2283 | else |
| 2284 | break; |
| 2285 | } |
| 2286 | return Fnreverse (lpath); |
| 2287 | } |
| 2288 | |
| 2289 | void |
| 2290 | syms_of_emacs () |
| 2291 | { |
| 2292 | Qfile_name_handler_alist = intern ("file-name-handler-alist"); |
| 2293 | staticpro (&Qfile_name_handler_alist); |
| 2294 | |
| 2295 | #ifndef CANNOT_DUMP |
| 2296 | #ifdef HAVE_SHM |
| 2297 | defsubr (&Sdump_emacs_data); |
| 2298 | #else |
| 2299 | defsubr (&Sdump_emacs); |
| 2300 | #endif |
| 2301 | #endif |
| 2302 | |
| 2303 | defsubr (&Skill_emacs); |
| 2304 | |
| 2305 | defsubr (&Sinvocation_name); |
| 2306 | defsubr (&Sinvocation_directory); |
| 2307 | |
| 2308 | DEFVAR_LISP ("command-line-args", &Vcommand_line_args, |
| 2309 | doc: /* Args passed by shell to Emacs, as a list of strings. |
| 2310 | Many arguments are deleted from the list as they are processed. */); |
| 2311 | |
| 2312 | DEFVAR_LISP ("system-type", &Vsystem_type, |
| 2313 | doc: /* Value is symbol indicating type of operating system you are using. */); |
| 2314 | Vsystem_type = intern (SYSTEM_TYPE); |
| 2315 | |
| 2316 | DEFVAR_LISP ("system-configuration", &Vsystem_configuration, |
| 2317 | doc: /* Value is string indicating configuration Emacs was built for. |
| 2318 | On MS-Windows, the value reflects the OS flavor and version on which |
| 2319 | Emacs is running. */); |
| 2320 | Vsystem_configuration = build_string (EMACS_CONFIGURATION); |
| 2321 | |
| 2322 | DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options, |
| 2323 | doc: /* String containing the configuration options Emacs was built with. */); |
| 2324 | Vsystem_configuration_options = build_string (EMACS_CONFIG_OPTIONS); |
| 2325 | |
| 2326 | DEFVAR_BOOL ("noninteractive", &noninteractive1, |
| 2327 | doc: /* Non-nil means Emacs is running without interactive terminal. */); |
| 2328 | |
| 2329 | DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook, |
| 2330 | doc: /* Hook to be run when kill-emacs is called. |
| 2331 | Since `kill-emacs' may be invoked when the terminal is disconnected (or |
| 2332 | in other similar situations), functions placed on this hook should not |
| 2333 | expect to be able to interact with the user. To ask for confirmation, |
| 2334 | see `kill-emacs-query-functions' instead. |
| 2335 | |
| 2336 | The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */); |
| 2337 | Vkill_emacs_hook = Qnil; |
| 2338 | |
| 2339 | empty_string = build_string (""); |
| 2340 | staticpro (&empty_string); |
| 2341 | |
| 2342 | #ifdef SIGUSR1 |
| 2343 | DEFVAR_LISP ("signal-USR1-hook", &Vsignal_USR1_hook, |
| 2344 | doc: /* Hook to be run whenever emacs receives a USR1 signal. */); |
| 2345 | Vsignal_USR1_hook = Qnil; |
| 2346 | #ifdef SIGUSR2 |
| 2347 | DEFVAR_LISP ("signal-USR2-hook", &Vsignal_USR2_hook, |
| 2348 | doc: /* Hook to be run whenever emacs receives a USR2 signal. */); |
| 2349 | Vsignal_USR2_hook = Qnil; |
| 2350 | #endif |
| 2351 | #endif |
| 2352 | |
| 2353 | |
| 2354 | DEFVAR_INT ("emacs-priority", &emacs_priority, |
| 2355 | doc: /* Priority for Emacs to run at. |
| 2356 | This value is effective only if set before Emacs is dumped, |
| 2357 | and only if the Emacs executable is installed with setuid to permit |
| 2358 | it to change priority. (Emacs sets its uid back to the real uid.) |
| 2359 | Currently, you need to define SET_EMACS_PRIORITY in `config.h' |
| 2360 | before you compile Emacs, to enable the code for this feature. */); |
| 2361 | emacs_priority = 0; |
| 2362 | |
| 2363 | DEFVAR_LISP ("path-separator", &Vpath_separator, |
| 2364 | doc: /* The directory separator in search paths, as a string. */); |
| 2365 | { |
| 2366 | char c = SEPCHAR; |
| 2367 | Vpath_separator = make_string (&c, 1); |
| 2368 | } |
| 2369 | |
| 2370 | DEFVAR_LISP ("invocation-name", &Vinvocation_name, |
| 2371 | doc: /* The program name that was used to run Emacs. |
| 2372 | Any directory names are omitted. */); |
| 2373 | |
| 2374 | DEFVAR_LISP ("invocation-directory", &Vinvocation_directory, |
| 2375 | doc: /* The directory in which the Emacs executable was found, to run it. |
| 2376 | The value is nil if that directory's name is not known. */); |
| 2377 | |
| 2378 | DEFVAR_LISP ("installation-directory", &Vinstallation_directory, |
| 2379 | doc: /* A directory within which to look for the `lib-src' and `etc' directories. |
| 2380 | This is non-nil when we can't find those directories in their standard |
| 2381 | installed locations, but we can find them |
| 2382 | near where the Emacs executable was found. */); |
| 2383 | Vinstallation_directory = Qnil; |
| 2384 | |
| 2385 | DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale, |
| 2386 | doc: /* System locale for messages. */); |
| 2387 | Vsystem_messages_locale = Qnil; |
| 2388 | |
| 2389 | DEFVAR_LISP ("previous-system-messages-locale", |
| 2390 | &Vprevious_system_messages_locale, |
| 2391 | doc: /* Most recently used system locale for messages. */); |
| 2392 | Vprevious_system_messages_locale = Qnil; |
| 2393 | |
| 2394 | DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale, |
| 2395 | doc: /* System locale for time. */); |
| 2396 | Vsystem_time_locale = Qnil; |
| 2397 | |
| 2398 | DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale, |
| 2399 | doc: /* Most recently used system locale for time. */); |
| 2400 | Vprevious_system_time_locale = Qnil; |
| 2401 | } |