Commit | Line | Data |
---|---|---|
f927c5ae | 1 | /* Fully extensible Emacs, running on Unix, intended for GNU. |
d1af74e9 | 2 | Copyright (C) 1985, 1986, 1987, 1992 Free Software Foundation, Inc. |
f927c5ae JB |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 1, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | ||
21 | #include <signal.h> | |
22 | #include <errno.h> | |
23 | ||
24 | #include "config.h" | |
25 | #include <stdio.h> | |
26 | ||
27 | #include <sys/types.h> | |
28 | #include <sys/file.h> | |
29 | ||
30 | #ifdef VMS | |
31 | #include <ssdef.h> | |
32 | #endif | |
33 | ||
34 | #ifdef USG5 | |
35 | #include <fcntl.h> | |
36 | #endif | |
37 | ||
38 | #ifdef BSD | |
39 | #include <sys/ioctl.h> | |
40 | #endif | |
41 | ||
2447c626 JB |
42 | #ifdef HAVE_TERMIOS |
43 | #include <termios.h> | |
44 | #endif | |
45 | ||
f927c5ae JB |
46 | #ifdef APOLLO |
47 | #ifndef APOLLO_SR10 | |
48 | #include <default_acl.h> | |
49 | #endif | |
50 | #endif | |
51 | ||
f927c5ae JB |
52 | #include "lisp.h" |
53 | #include "commands.h" | |
54 | ||
a41f8bed JB |
55 | #include "systerm.h" |
56 | ||
f927c5ae JB |
57 | #ifndef O_RDWR |
58 | #define O_RDWR 2 | |
59 | #endif | |
60 | ||
61 | #define PRIO_PROCESS 0 | |
62 | ||
63 | /* Command line args from shell, as list of strings */ | |
64 | Lisp_Object Vcommand_line_args; | |
65 | ||
e5d77022 JB |
66 | /* Hook run by `kill-emacs' before it does really anything. */ |
67 | Lisp_Object Vkill_emacs_hook; | |
68 | ||
f927c5ae JB |
69 | /* Set nonzero after Emacs has started up the first time. |
70 | Prevents reinitialization of the Lisp world and keymaps | |
71 | on subsequent starts. */ | |
72 | int initialized; | |
73 | ||
74 | /* Variable whose value is symbol giving operating system type */ | |
75 | Lisp_Object Vsystem_type; | |
76 | ||
77 | /* If non-zero, emacs should not attempt to use an window-specific code, | |
78 | but instead should use the virtual terminal under which it was started */ | |
79 | int inhibit_window_system; | |
80 | ||
81 | #ifdef HAVE_X_WINDOWS | |
82 | /* If non-zero, -d was specified, meaning we're using some window system. */ | |
83 | int display_arg; | |
84 | #endif | |
85 | ||
86 | /* An address near the bottom of the stack. | |
87 | Tells GC how to save a copy of the stack. */ | |
88 | char *stack_bottom; | |
89 | ||
90 | #ifdef HAVE_X_WINDOWS | |
91 | extern Lisp_Object Vwindow_system; | |
92 | #endif /* HAVE_X_WINDOWS */ | |
93 | ||
94 | #ifdef USG_SHARED_LIBRARIES | |
95 | /* If nonzero, this is the place to put the end of the writable segment | |
96 | at startup. */ | |
97 | ||
98 | unsigned int bss_end = 0; | |
99 | #endif | |
100 | ||
101 | /* Nonzero means running Emacs without interactive terminal. */ | |
102 | ||
103 | int noninteractive; | |
104 | ||
105 | /* Value of Lisp variable `noninteractive'. | |
106 | Normally same as C variable `noninteractive' | |
107 | but nothing terrible happens if user sets this one. */ | |
108 | ||
109 | int noninteractive1; | |
110 | \f | |
111 | /* Signal code for the fatal signal that was received */ | |
112 | int fatal_error_code; | |
113 | ||
114 | /* Nonzero if handling a fatal error already */ | |
115 | int fatal_error_in_progress; | |
116 | ||
117 | /* Handle bus errors, illegal instruction, etc. */ | |
2447c626 | 118 | SIGTYPE |
f927c5ae JB |
119 | fatal_error_signal (sig) |
120 | int sig; | |
121 | { | |
f927c5ae JB |
122 | fatal_error_code = sig; |
123 | signal (sig, SIG_DFL); | |
124 | ||
125 | /* If fatal error occurs in code below, avoid infinite recursion. */ | |
126 | if (fatal_error_in_progress) | |
127 | kill (getpid (), fatal_error_code); | |
128 | ||
129 | fatal_error_in_progress = 1; | |
130 | ||
131 | /* If we are controlling the terminal, reset terminal modes */ | |
a41f8bed | 132 | #ifdef EMACS_HAVE_TTY_PGRP |
2447c626 JB |
133 | { |
134 | int tpgrp; | |
a41f8bed | 135 | if (EMACS_GET_TTY_PGRP (0, &tpgrp) != -1 |
2447c626 JB |
136 | && tpgrp == getpgrp (0)) |
137 | { | |
138 | reset_sys_modes (); | |
139 | if (sig != SIGTERM) | |
140 | fprintf (stderr, "Fatal error (%d).", sig); | |
141 | } | |
142 | } | |
143 | #endif /* uses pgrp */ | |
f927c5ae JB |
144 | |
145 | /* Clean up */ | |
f927c5ae | 146 | kill_buffer_processes (Qnil); |
f927c5ae JB |
147 | Fdo_auto_save (Qt, Qnil); |
148 | ||
149 | #ifdef CLASH_DETECTION | |
150 | unlock_all_files (); | |
151 | #endif /* CLASH_DETECTION */ | |
152 | ||
153 | #ifdef VMS | |
154 | kill_vms_processes (); | |
155 | LIB$STOP (SS$_ABORT); | |
156 | #else | |
157 | /* Signal the same code; this time it will really be fatal. */ | |
158 | kill (getpid (), fatal_error_code); | |
159 | #endif /* not VMS */ | |
160 | } | |
161 | \f | |
162 | /* Code for dealing with Lisp access to the Unix command line */ | |
163 | ||
164 | static | |
165 | init_cmdargs (argc, argv, skip_args) | |
166 | int argc; | |
167 | char **argv; | |
168 | int skip_args; | |
169 | { | |
170 | register int i; | |
171 | ||
172 | Vcommand_line_args = Qnil; | |
173 | ||
174 | for (i = argc - 1; i >= 0; i--) | |
175 | { | |
176 | if (i == 0 || i > skip_args) | |
177 | Vcommand_line_args | |
178 | = Fcons (build_string (argv[i]), Vcommand_line_args); | |
179 | } | |
180 | } | |
181 | \f | |
182 | #ifdef VMS | |
183 | #ifdef LINK_CRTL_SHARE | |
184 | #ifdef SHAREABLE_LIB_BUG | |
185 | extern noshare char **environ; | |
186 | #endif /* SHAREABLE_LIB_BUG */ | |
187 | #endif /* LINK_CRTL_SHARE */ | |
188 | #endif /* VMS */ | |
189 | ||
190 | /* ARGSUSED */ | |
191 | main (argc, argv, envp) | |
192 | int argc; | |
193 | char **argv; | |
194 | char **envp; | |
195 | { | |
196 | char stack_bottom_variable; | |
197 | int skip_args = 0; | |
198 | extern int errno; | |
199 | extern sys_nerr; | |
200 | extern char *sys_errlist[]; | |
201 | extern void malloc_warning (); | |
202 | ||
203 | /* Map in shared memory, if we are using that. */ | |
204 | #ifdef HAVE_SHM | |
205 | if (argc > 1 && !strcmp (argv[1], "-nl")) | |
206 | { | |
207 | map_in_data (0); | |
208 | /* The shared memory was just restored, which clobbered this. */ | |
209 | skip_args = 1; | |
210 | } | |
211 | else | |
212 | { | |
213 | map_in_data (1); | |
214 | /* The shared memory was just restored, which clobbered this. */ | |
215 | skip_args = 0; | |
216 | } | |
217 | #endif | |
218 | ||
219 | #ifdef HAVE_X_WINDOWS | |
fb8e9847 JB |
220 | /* Stupid kludge to catch command-line display spec. We can't |
221 | handle this argument entirely in window system dependent code | |
222 | because we don't even know which window system dependent code | |
223 | to run until we've recognized this argument. */ | |
f927c5ae JB |
224 | { |
225 | int i; | |
226 | ||
227 | for (i = 1; (i < argc && ! display_arg); i++) | |
228 | if (!strcmp (argv[i], "-d")) | |
229 | display_arg = 1; | |
230 | } | |
231 | #endif | |
232 | ||
233 | #ifdef VMS | |
234 | /* If -map specified, map the data file in */ | |
235 | if (argc > 2 && ! strcmp (argv[1], "-map")) | |
236 | { | |
237 | skip_args = 2; | |
238 | mapin_data (argv[2]); | |
239 | } | |
240 | ||
241 | #ifdef LINK_CRTL_SHARE | |
242 | #ifdef SHAREABLE_LIB_BUG | |
243 | /* Bletcherous shared libraries! */ | |
244 | if (!stdin) | |
245 | stdin = fdopen (0, "r"); | |
246 | if (!stdout) | |
247 | stdout = fdopen (1, "w"); | |
248 | if (!stderr) | |
249 | stderr = fdopen (2, "w"); | |
250 | if (!environ) | |
251 | environ = envp; | |
252 | #endif /* SHAREABLE_LIB_BUG */ | |
253 | #endif /* LINK_CRTL_SHARE */ | |
254 | #endif /* VMS */ | |
255 | ||
256 | /* Record (approximately) where the stack begins. */ | |
257 | stack_bottom = &stack_bottom_variable; | |
258 | ||
259 | #ifdef RUN_TIME_REMAP | |
260 | if (initialized) | |
261 | run_time_remap (argv[0]); | |
262 | #endif | |
263 | ||
264 | #ifdef USG_SHARED_LIBRARIES | |
265 | if (bss_end) | |
266 | brk (bss_end); | |
267 | #endif | |
268 | ||
269 | clearerr (stdin); | |
270 | #ifdef BSD | |
271 | setpgrp (0, getpid ()); | |
272 | #endif | |
273 | ||
274 | #ifdef APOLLO | |
275 | #ifndef APOLLO_SR10 | |
276 | /* If USE_DOMAIN_ACLS environment variable exists, | |
277 | use ACLs rather than UNIX modes. */ | |
278 | if (egetenv ("USE_DOMAIN_ACLS")) | |
279 | default_acl (USE_DEFACL); | |
280 | #endif | |
281 | #endif /* APOLLO */ | |
282 | ||
283 | #ifndef SYSTEM_MALLOC | |
284 | if (! initialized) | |
285 | malloc_init (0, malloc_warning); | |
286 | #endif /* not SYSTEM_MALLOC */ | |
287 | ||
288 | #ifdef HIGHPRI | |
289 | setpriority (PRIO_PROCESS, getpid (), HIGHPRI); | |
290 | setuid (getuid ()); | |
291 | #endif /* HIGHPRI */ | |
292 | ||
293 | #ifdef BSD | |
294 | /* interrupt_input has trouble if we aren't in a separate process group. */ | |
295 | setpgrp (getpid (), getpid ()); | |
296 | #endif | |
297 | ||
298 | inhibit_window_system = 0; | |
299 | ||
4fc0b45b | 300 | /* Handle the -t switch, which specifies filename to use as terminal */ |
f927c5ae JB |
301 | if (skip_args + 2 < argc && !strcmp (argv[skip_args + 1], "-t")) |
302 | { | |
303 | int result; | |
304 | skip_args += 2; | |
305 | close (0); | |
306 | close (1); | |
307 | result = open (argv[skip_args], O_RDWR, 2 ); | |
308 | if (result < 0) | |
309 | { | |
310 | char *errstring; | |
311 | ||
312 | if (errno >= 0 && errno < sys_nerr) | |
313 | errstring = sys_errlist[errno]; | |
314 | else | |
315 | errstring = "undocumented error code"; | |
316 | fprintf (stderr, "emacs: %s: %s\n", argv[skip_args], errstring); | |
317 | exit (1); | |
318 | } | |
319 | dup (0); | |
320 | if (! isatty (0)) | |
321 | { | |
322 | fprintf (stderr, "emacs: %s: not a tty\n", argv[skip_args]); | |
323 | exit (1); | |
324 | } | |
325 | fprintf (stderr, "Using %s\n", argv[skip_args]); | |
326 | #ifdef HAVE_X_WINDOWS | |
327 | inhibit_window_system = 1; /* -t => -nw */ | |
328 | #endif | |
329 | } | |
330 | ||
331 | if (skip_args + 1 < argc | |
332 | && (!strcmp (argv[skip_args + 1], "-nw"))) | |
333 | { | |
334 | skip_args += 1; | |
335 | inhibit_window_system = 1; | |
336 | } | |
337 | ||
338 | /* Handle the -batch switch, which means don't do interactive display. */ | |
339 | noninteractive = 0; | |
340 | if (skip_args + 1 < argc && !strcmp (argv[skip_args + 1], "-batch")) | |
341 | { | |
342 | skip_args += 1; | |
343 | noninteractive = 1; | |
344 | } | |
345 | ||
fb8e9847 JB |
346 | #ifdef POSIX_SIGNALS |
347 | init_signals (); | |
348 | #endif | |
349 | ||
f927c5ae JB |
350 | if ( |
351 | #ifndef CANNOT_DUMP | |
352 | ! noninteractive || initialized | |
353 | #else | |
354 | 1 | |
355 | #endif | |
356 | ) | |
357 | { | |
358 | /* Don't catch these signals in batch mode if not initialized. | |
359 | On some machines, this sets static data that would make | |
360 | signal fail to work right when the dumped Emacs is run. */ | |
361 | signal (SIGHUP, fatal_error_signal); | |
362 | signal (SIGQUIT, fatal_error_signal); | |
363 | signal (SIGILL, fatal_error_signal); | |
364 | signal (SIGTRAP, fatal_error_signal); | |
365 | signal (SIGIOT, fatal_error_signal); | |
366 | #ifdef SIGEMT | |
367 | signal (SIGEMT, fatal_error_signal); | |
368 | #endif | |
369 | signal (SIGFPE, fatal_error_signal); | |
370 | signal (SIGBUS, fatal_error_signal); | |
371 | signal (SIGSEGV, fatal_error_signal); | |
372 | signal (SIGSYS, fatal_error_signal); | |
373 | signal (SIGTERM, fatal_error_signal); | |
374 | #ifdef SIGXCPU | |
375 | signal (SIGXCPU, fatal_error_signal); | |
376 | #endif | |
377 | #ifdef SIGXFSZ | |
378 | signal (SIGXFSZ, fatal_error_signal); | |
379 | #endif /* SIGXFSZ */ | |
380 | ||
381 | #ifdef AIX | |
382 | signal (SIGDANGER, fatal_error_signal); | |
383 | signal (20, fatal_error_signal); | |
384 | signal (21, fatal_error_signal); | |
385 | signal (22, fatal_error_signal); | |
386 | signal (23, fatal_error_signal); | |
387 | signal (24, fatal_error_signal); | |
bfb61299 | 388 | #ifdef SIGIO |
f927c5ae JB |
389 | signal (SIGAIO, fatal_error_signal); |
390 | signal (SIGPTY, fatal_error_signal); | |
bfb61299 | 391 | #endif |
f927c5ae JB |
392 | signal (SIGIOINT, fatal_error_signal); |
393 | signal (SIGGRANT, fatal_error_signal); | |
394 | signal (SIGRETRACT, fatal_error_signal); | |
395 | signal (SIGSOUND, fatal_error_signal); | |
396 | signal (SIGMSG, fatal_error_signal); | |
397 | #endif /* AIX */ | |
398 | } | |
399 | ||
400 | noninteractive1 = noninteractive; | |
401 | ||
402 | /* Perform basic initializations (not merely interning symbols) */ | |
403 | ||
404 | if (!initialized) | |
405 | { | |
406 | init_alloc_once (); | |
407 | init_obarray (); | |
408 | init_eval_once (); | |
409 | init_syntax_once (); /* Create standard syntax table. */ | |
410 | /* Must be done before init_buffer */ | |
411 | init_casetab_once (); | |
412 | init_buffer_once (); /* Create buffer table and some buffers */ | |
413 | init_minibuf_once (); /* Create list of minibuffers */ | |
414 | /* Must precede init_window_once */ | |
415 | init_window_once (); /* Init the window system */ | |
416 | } | |
417 | ||
418 | init_alloc (); | |
f927c5ae JB |
419 | init_eval (); |
420 | init_data (); | |
fb8e9847 | 421 | init_lread (); |
f927c5ae JB |
422 | |
423 | init_cmdargs (argc, argv, skip_args); /* Create list Vcommand_line_args */ | |
424 | init_buffer (); /* Init default directory of main buffer */ | |
425 | if (!noninteractive) | |
426 | { | |
427 | #ifdef VMS | |
1cbd5d9d | 428 | init_vms_input ();/* init_display calls get_frame_size, that needs this */ |
f927c5ae JB |
429 | #endif /* VMS */ |
430 | init_display (); /* Determine terminal type. init_sys_modes uses results */ | |
431 | } | |
432 | init_keyboard (); /* This too must precede init_sys_modes */ | |
433 | init_callproc (); /* And this too. */ | |
434 | #ifdef VMS | |
435 | init_vmsproc (); /* And this too. */ | |
436 | #endif /* VMS */ | |
437 | init_sys_modes (); /* Init system terminal modes (RAW or CBREAK, etc.) */ | |
438 | init_xdisp (); | |
439 | init_macros (); | |
440 | init_editfns (); | |
441 | #ifdef LISP_FLOAT_TYPE | |
442 | init_floatfns (); | |
443 | #endif | |
444 | #ifdef VMS | |
445 | init_vmsfns (); | |
446 | #endif /* VMS */ | |
f927c5ae | 447 | init_process (); |
32676c08 JB |
448 | #ifdef CLASH_DETECTION |
449 | init_filelock (); | |
450 | #endif /* CLASH_DETECTION */ | |
f927c5ae JB |
451 | |
452 | /* Intern the names of all standard functions and variables; define standard keys */ | |
453 | ||
454 | if (!initialized) | |
455 | { | |
456 | /* The basic levels of Lisp must come first */ | |
457 | /* And data must come first of all | |
458 | for the sake of symbols like error-message */ | |
459 | syms_of_data (); | |
460 | syms_of_alloc (); | |
fb8e9847 | 461 | syms_of_lread (); |
f927c5ae JB |
462 | syms_of_print (); |
463 | syms_of_eval (); | |
464 | syms_of_fns (); | |
465 | #ifdef LISP_FLOAT_TYPE | |
466 | syms_of_floatfns (); | |
467 | #endif | |
468 | ||
469 | syms_of_abbrev (); | |
470 | syms_of_buffer (); | |
471 | syms_of_bytecode (); | |
472 | syms_of_callint (); | |
473 | syms_of_casefiddle (); | |
474 | syms_of_casetab (); | |
475 | syms_of_callproc (); | |
476 | syms_of_cmds (); | |
477 | #ifndef NO_DIR_LIBRARY | |
478 | syms_of_dired (); | |
479 | #endif /* not NO_DIR_LIBRARY */ | |
480 | syms_of_display (); | |
481 | syms_of_doc (); | |
482 | syms_of_editfns (); | |
483 | syms_of_emacs (); | |
484 | syms_of_fileio (); | |
485 | #ifdef CLASH_DETECTION | |
486 | syms_of_filelock (); | |
487 | #endif /* CLASH_DETECTION */ | |
488 | syms_of_indent (); | |
489 | syms_of_keyboard (); | |
490 | syms_of_keymap (); | |
491 | syms_of_macros (); | |
492 | syms_of_marker (); | |
493 | syms_of_minibuf (); | |
494 | syms_of_mocklisp (); | |
f927c5ae | 495 | syms_of_process (); |
f927c5ae | 496 | syms_of_search (); |
1cbd5d9d JB |
497 | #ifdef MULTI_FRAME |
498 | syms_of_frame (); | |
f927c5ae JB |
499 | #endif |
500 | syms_of_syntax (); | |
501 | syms_of_undo (); | |
502 | #ifdef VMS | |
503 | syms_of_vmsproc (); | |
504 | #endif /* VMS */ | |
505 | syms_of_window (); | |
506 | syms_of_xdisp (); | |
507 | #ifdef HAVE_X_WINDOWS | |
72412588 | 508 | syms_of_xterm (); |
f927c5ae | 509 | syms_of_xfns (); |
72412588 JB |
510 | #ifdef HAVE_X11 |
511 | syms_of_xselect (); | |
512 | #endif | |
f927c5ae JB |
513 | #ifdef HAVE_X_MENU |
514 | syms_of_xmenu (); | |
515 | #endif /* HAVE_X_MENU */ | |
516 | #endif /* HAVE_X_WINDOWS */ | |
517 | ||
518 | #ifdef SYMS_SYSTEM | |
519 | SYMS_SYSTEM; | |
520 | #endif | |
521 | ||
522 | #ifdef SYMS_MACHINE | |
523 | SYMS_MACHINE; | |
524 | #endif | |
525 | ||
526 | keys_of_casefiddle (); | |
527 | keys_of_cmds (); | |
528 | keys_of_buffer (); | |
529 | keys_of_keyboard (); | |
530 | keys_of_keymap (); | |
531 | keys_of_macros (); | |
532 | keys_of_minibuf (); | |
533 | keys_of_window (); | |
534 | } | |
535 | ||
536 | if (!initialized) | |
537 | { | |
538 | /* Handle -l loadup-and-dump, args passed by Makefile. */ | |
539 | if (argc > 2 + skip_args && !strcmp (argv[1 + skip_args], "-l")) | |
540 | Vtop_level = Fcons (intern ("load"), | |
541 | Fcons (build_string (argv[2 + skip_args]), Qnil)); | |
542 | #ifdef CANNOT_DUMP | |
543 | /* Unless next switch is -nl, load "loadup.el" first thing. */ | |
544 | if (!(argc > 1 + skip_args && !strcmp (argv[1 + skip_args], "-nl"))) | |
545 | Vtop_level = Fcons (intern ("load"), | |
546 | Fcons (build_string ("loadup.el"), Qnil)); | |
547 | #endif /* CANNOT_DUMP */ | |
548 | } | |
549 | ||
550 | initialized = 1; | |
551 | ||
552 | /* Enter editor command loop. This never returns. */ | |
553 | Frecursive_edit (); | |
554 | /* NOTREACHED */ | |
555 | } | |
556 | \f | |
557 | DEFUN ("kill-emacs", Fkill_emacs, Skill_emacs, 0, 1, "P", | |
558 | "Exit the Emacs job and kill it. Ask for confirmation, without argument.\n\ | |
559 | If ARG is an integer, return ARG as the exit program code.\n\ | |
560 | If ARG is a string, stuff it as keyboard input.\n\n\ | |
561 | The value of `kill-emacs-hook', if not void,\n\ | |
562 | is a list of functions (of no args),\n\ | |
563 | all of which are called before Emacs is actually killed.") | |
564 | (arg) | |
565 | Lisp_Object arg; | |
566 | { | |
567 | Lisp_Object hook, hook1; | |
568 | int i; | |
569 | struct gcpro gcpro1; | |
570 | ||
571 | GCPRO1 (arg); | |
572 | ||
573 | if (feof (stdin)) | |
574 | arg = Qt; | |
575 | ||
2447c626 | 576 | if (!NILP (Vrun_hooks) && !noninteractive) |
f927c5ae JB |
577 | call1 (Vrun_hooks, intern ("kill-emacs-hook")); |
578 | ||
f927c5ae | 579 | kill_buffer_processes (Qnil); |
f927c5ae JB |
580 | |
581 | #ifdef VMS | |
582 | kill_vms_processes (); | |
583 | #endif /* VMS */ | |
584 | ||
585 | Fdo_auto_save (Qt, Qnil); | |
586 | ||
587 | #ifdef CLASH_DETECTION | |
588 | unlock_all_files (); | |
589 | #endif /* CLASH_DETECTION */ | |
590 | ||
591 | fflush (stdout); | |
592 | reset_sys_modes (); | |
593 | ||
594 | #ifdef HAVE_X_WINDOWS | |
595 | if (!noninteractive && EQ (Vwindow_system, intern ("x"))) | |
596 | Fx_close_current_connection (); | |
597 | #endif /* HAVE_X_WINDOWS */ | |
598 | ||
599 | UNGCPRO; | |
600 | ||
601 | /* Is it really necessary to do this deassign | |
602 | when we are going to exit anyway? */ | |
603 | /* #ifdef VMS | |
604 | stop_vms_input (); | |
605 | #endif */ | |
606 | stuff_buffered_input (arg); | |
607 | #ifdef SIGIO | |
608 | /* There is a tendency for a SIGIO signal to arrive within exit, | |
609 | and cause a SIGHUP because the input descriptor is already closed. */ | |
610 | unrequest_sigio (); | |
611 | signal (SIGIO, SIG_IGN); | |
612 | #endif | |
613 | exit ((XTYPE (arg) == Lisp_Int) ? XINT (arg) | |
614 | #ifdef VMS | |
615 | : 1 | |
616 | #else | |
617 | : 0 | |
618 | #endif | |
619 | ); | |
620 | /* NOTREACHED */ | |
621 | } | |
622 | \f | |
623 | #ifndef CANNOT_DUMP | |
624 | /* Nothing like this can be implemented on an Apollo. | |
625 | What a loss! */ | |
626 | ||
627 | #ifdef HAVE_SHM | |
628 | ||
629 | DEFUN ("dump-emacs-data", Fdump_emacs_data, Sdump_emacs_data, 1, 1, 0, | |
630 | "Dump current state of Emacs into data file FILENAME.\n\ | |
631 | This function exists on systems that use HAVE_SHM.") | |
632 | (intoname) | |
633 | Lisp_Object intoname; | |
634 | { | |
635 | extern int my_edata; | |
636 | Lisp_Object tem; | |
637 | extern void malloc_warning (); | |
638 | ||
639 | CHECK_STRING (intoname, 0); | |
640 | intoname = Fexpand_file_name (intoname, Qnil); | |
641 | ||
642 | tem = Vpurify_flag; | |
643 | Vpurify_flag = Qnil; | |
644 | ||
645 | fflush (stdout); | |
646 | /* Tell malloc where start of impure now is */ | |
647 | /* Also arrange for warnings when nearly out of space. */ | |
648 | #ifndef SYSTEM_MALLOC | |
649 | malloc_init (&my_edata, malloc_warning); | |
650 | #endif | |
651 | map_out_data (XSTRING (intoname)->data); | |
652 | ||
653 | Vpurify_flag = tem; | |
654 | ||
655 | return Qnil; | |
656 | } | |
657 | ||
658 | #else /* not HAVE_SHM */ | |
659 | ||
660 | DEFUN ("dump-emacs", Fdump_emacs, Sdump_emacs, 2, 2, 0, | |
661 | "Dump current state of Emacs into executable file FILENAME.\n\ | |
662 | Take symbols from SYMFILE (presumably the file you executed to run Emacs).\n\ | |
663 | This is used in the file `loadup.el' when building Emacs.\n\ | |
664 | \n\ | |
665 | Bind `command-line-processed' to nil before dumping,\n\ | |
666 | if you want the dumped Emacs to process its command line\n\ | |
667 | and announce itself normally when it is run.") | |
668 | (intoname, symname) | |
669 | Lisp_Object intoname, symname; | |
670 | { | |
671 | extern int my_edata; | |
672 | Lisp_Object tem; | |
673 | extern void malloc_warning (); | |
674 | ||
675 | CHECK_STRING (intoname, 0); | |
676 | intoname = Fexpand_file_name (intoname, Qnil); | |
2447c626 | 677 | if (!NILP (symname)) |
f927c5ae JB |
678 | { |
679 | CHECK_STRING (symname, 0); | |
680 | if (XSTRING (symname)->size) | |
681 | symname = Fexpand_file_name (symname, Qnil); | |
682 | } | |
683 | ||
684 | tem = Vpurify_flag; | |
685 | Vpurify_flag = Qnil; | |
686 | ||
687 | fflush (stdout); | |
688 | #ifdef VMS | |
689 | mapout_data (XSTRING (intoname)->data); | |
690 | #else | |
691 | /* Tell malloc where start of impure now is */ | |
692 | /* Also arrange for warnings when nearly out of space. */ | |
693 | #ifndef SYSTEM_MALLOC | |
694 | malloc_init (&my_edata, malloc_warning); | |
695 | #endif | |
696 | unexec (XSTRING (intoname)->data, | |
2447c626 | 697 | !NILP (symname) ? XSTRING (symname)->data : 0, &my_edata, 0, 0); |
f927c5ae JB |
698 | #endif /* not VMS */ |
699 | ||
700 | Vpurify_flag = tem; | |
701 | ||
702 | return Qnil; | |
703 | } | |
704 | ||
705 | #endif /* not HAVE_SHM */ | |
706 | ||
707 | #endif /* not CANNOT_DUMP */ | |
708 | \f | |
709 | #ifdef VMS | |
710 | #define SEPCHAR ',' | |
711 | #else | |
712 | #define SEPCHAR ':' | |
713 | #endif | |
714 | ||
715 | Lisp_Object | |
716 | decode_env_path (evarname, defalt) | |
717 | char *evarname, *defalt; | |
718 | { | |
719 | register char *path, *p; | |
720 | extern char *index (); | |
721 | ||
722 | Lisp_Object lpath; | |
723 | ||
2447c626 JB |
724 | /* It's okay to use getenv here, because this function is only used |
725 | to initialize variables when Emacs starts up, and isn't called | |
726 | after that. */ | |
e065a56e JB |
727 | if (evarname != 0) |
728 | path = (char *) getenv (evarname); | |
729 | else | |
730 | path = 0; | |
f927c5ae JB |
731 | if (!path) |
732 | path = defalt; | |
733 | lpath = Qnil; | |
734 | while (1) | |
735 | { | |
736 | p = index (path, SEPCHAR); | |
737 | if (!p) p = path + strlen (path); | |
738 | lpath = Fcons (p - path ? make_string (path, p - path) : Qnil, | |
739 | lpath); | |
740 | if (*p) | |
741 | path = p + 1; | |
742 | else | |
743 | break; | |
744 | } | |
745 | return Fnreverse (lpath); | |
746 | } | |
747 | ||
748 | syms_of_emacs () | |
749 | { | |
750 | #ifdef HAVE_SHM | |
751 | defsubr (&Sdump_emacs_data); | |
752 | #else | |
753 | defsubr (&Sdump_emacs); | |
754 | #endif | |
755 | ||
756 | defsubr (&Skill_emacs); | |
757 | ||
758 | DEFVAR_LISP ("command-line-args", &Vcommand_line_args, | |
759 | "Args passed by shell to Emacs, as a list of strings."); | |
760 | ||
761 | DEFVAR_LISP ("system-type", &Vsystem_type, | |
762 | "Value is symbol indicating type of operating system you are using."); | |
763 | Vsystem_type = intern (SYSTEM_TYPE); | |
764 | ||
765 | DEFVAR_BOOL ("noninteractive", &noninteractive1, | |
766 | "Non-nil means Emacs is running without interactive terminal."); | |
e5d77022 JB |
767 | |
768 | Vkill_emacs_hook = Qnil; | |
769 | ||
770 | DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook, | |
771 | "Hook to be run whenever kill-emacs is called."); | |
f927c5ae | 772 | } |