Commit | Line | Data |
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f927c5ae | 1 | /* Fully extensible Emacs, running on Unix, intended for GNU. |
be06db9a | 2 | Copyright (C) 1985, 1986, 1987, 1993, 1994 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 | |
40be253a | 8 | the Free Software Foundation; either version 2, or (at your option) |
f927c5ae JB |
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 | ||
18160b98 | 24 | #include <config.h> |
f927c5ae JB |
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 | ||
f927c5ae JB |
34 | #ifdef BSD |
35 | #include <sys/ioctl.h> | |
36 | #endif | |
37 | ||
38 | #ifdef APOLLO | |
39 | #ifndef APOLLO_SR10 | |
40 | #include <default_acl.h> | |
41 | #endif | |
42 | #endif | |
43 | ||
f927c5ae JB |
44 | #include "lisp.h" |
45 | #include "commands.h" | |
bef79ee4 | 46 | #include "intervals.h" |
f927c5ae | 47 | |
edc8ae07 | 48 | #include "systty.h" |
8090eb09 | 49 | #include "syssignal.h" |
6c362a8b | 50 | #include "process.h" |
a41f8bed | 51 | |
f927c5ae JB |
52 | #ifndef O_RDWR |
53 | #define O_RDWR 2 | |
54 | #endif | |
55 | ||
43165242 KH |
56 | extern void malloc_warning (); |
57 | extern char *index (); | |
58 | extern char *strerror (); | |
59 | ||
f927c5ae JB |
60 | /* Command line args from shell, as list of strings */ |
61 | Lisp_Object Vcommand_line_args; | |
62 | ||
59653951 JB |
63 | /* The name under which Emacs was invoked, with any leading directory |
64 | names discarded. */ | |
65 | Lisp_Object Vinvocation_name; | |
66 | ||
ace40a69 RS |
67 | /* The directory name from which Emacs was invoked. */ |
68 | Lisp_Object Vinvocation_directory; | |
69 | ||
07f4d123 RS |
70 | /* The directory name in which to find subdirs such as lisp and etc. |
71 | nil means get them only from PATH_LOADSEARCH. */ | |
72 | Lisp_Object Vinstallation_directory; | |
73 | ||
e5d77022 JB |
74 | /* Hook run by `kill-emacs' before it does really anything. */ |
75 | Lisp_Object Vkill_emacs_hook; | |
76 | ||
f927c5ae JB |
77 | /* Set nonzero after Emacs has started up the first time. |
78 | Prevents reinitialization of the Lisp world and keymaps | |
79 | on subsequent starts. */ | |
80 | int initialized; | |
81 | ||
271c7b7c | 82 | /* Variable whose value is symbol giving operating system type. */ |
f927c5ae | 83 | Lisp_Object Vsystem_type; |
271c7b7c RS |
84 | |
85 | /* Variable whose value is string giving configuration built for. */ | |
86 | Lisp_Object Vsystem_configuration; | |
f0fc0b1a KH |
87 | |
88 | /* Variable whose value is string giving configuration options, | |
89 | for use when reporting bugs. */ | |
90 | Lisp_Object Vsystem_configuration_options; | |
91 | ||
f927c5ae JB |
92 | /* If non-zero, emacs should not attempt to use an window-specific code, |
93 | but instead should use the virtual terminal under which it was started */ | |
94 | int inhibit_window_system; | |
95 | ||
5aa7f46a JB |
96 | /* If nonzero, set Emacs to run at this priority. This is also used |
97 | in child_setup and sys_suspend to make sure subshells run at normal | |
98 | priority; Those functions have their own extern declaration. */ | |
3005da00 RS |
99 | int emacs_priority; |
100 | ||
647cec74 | 101 | #ifdef BSD_PGRPS |
9ae8f997 JB |
102 | /* See sysdep.c. */ |
103 | extern int inherited_pgroup; | |
104 | #endif | |
105 | ||
f927c5ae JB |
106 | #ifdef HAVE_X_WINDOWS |
107 | /* If non-zero, -d was specified, meaning we're using some window system. */ | |
108 | int display_arg; | |
109 | #endif | |
110 | ||
111 | /* An address near the bottom of the stack. | |
112 | Tells GC how to save a copy of the stack. */ | |
113 | char *stack_bottom; | |
114 | ||
115 | #ifdef HAVE_X_WINDOWS | |
116 | extern Lisp_Object Vwindow_system; | |
117 | #endif /* HAVE_X_WINDOWS */ | |
118 | ||
119 | #ifdef USG_SHARED_LIBRARIES | |
120 | /* If nonzero, this is the place to put the end of the writable segment | |
121 | at startup. */ | |
122 | ||
123 | unsigned int bss_end = 0; | |
124 | #endif | |
125 | ||
126 | /* Nonzero means running Emacs without interactive terminal. */ | |
127 | ||
128 | int noninteractive; | |
129 | ||
130 | /* Value of Lisp variable `noninteractive'. | |
131 | Normally same as C variable `noninteractive' | |
132 | but nothing terrible happens if user sets this one. */ | |
133 | ||
134 | int noninteractive1; | |
e29f86e4 RS |
135 | |
136 | /* Save argv and argc. */ | |
137 | char **initial_argv; | |
138 | int initial_argc; | |
f927c5ae JB |
139 | \f |
140 | /* Signal code for the fatal signal that was received */ | |
141 | int fatal_error_code; | |
142 | ||
143 | /* Nonzero if handling a fatal error already */ | |
144 | int fatal_error_in_progress; | |
145 | ||
146 | /* Handle bus errors, illegal instruction, etc. */ | |
2447c626 | 147 | SIGTYPE |
f927c5ae JB |
148 | fatal_error_signal (sig) |
149 | int sig; | |
150 | { | |
f927c5ae JB |
151 | fatal_error_code = sig; |
152 | signal (sig, SIG_DFL); | |
153 | ||
154 | /* If fatal error occurs in code below, avoid infinite recursion. */ | |
8090eb09 JB |
155 | if (! fatal_error_in_progress) |
156 | { | |
157 | fatal_error_in_progress = 1; | |
f927c5ae | 158 | |
f7ab4e3d | 159 | shut_down_emacs (sig, 0, Qnil); |
8090eb09 | 160 | } |
f927c5ae JB |
161 | |
162 | #ifdef VMS | |
f927c5ae JB |
163 | LIB$STOP (SS$_ABORT); |
164 | #else | |
8090eb09 JB |
165 | /* Signal the same code; this time it will really be fatal. |
166 | Remember that since we're in a signal handler, the signal we're | |
167 | going to send is probably blocked, so we have to unblock it if we | |
168 | want to really receive it. */ | |
29b89fe0 | 169 | #ifndef MSDOS |
a90538cb | 170 | sigunblock (sigmask (fatal_error_code)); |
29b89fe0 | 171 | #endif |
f927c5ae JB |
172 | kill (getpid (), fatal_error_code); |
173 | #endif /* not VMS */ | |
174 | } | |
271c7b7c RS |
175 | |
176 | #ifdef SIGDANGER | |
177 | ||
16c323ee | 178 | /* Handler for SIGDANGER. */ |
271c7b7c RS |
179 | SIGTYPE |
180 | memory_warning_signal (sig) | |
181 | int sig; | |
182 | { | |
183 | signal (sig, memory_warning_signal); | |
184 | ||
185 | malloc_warning ("Operating system warns that virtual memory is running low.\n"); | |
55796183 RS |
186 | |
187 | /* It might be unsafe to call do_auto_save now. */ | |
188 | force_auto_save_soon (); | |
271c7b7c RS |
189 | } |
190 | #endif | |
f927c5ae JB |
191 | \f |
192 | /* Code for dealing with Lisp access to the Unix command line */ | |
193 | ||
194 | static | |
195 | init_cmdargs (argc, argv, skip_args) | |
196 | int argc; | |
197 | char **argv; | |
198 | int skip_args; | |
199 | { | |
200 | register int i; | |
07f4d123 | 201 | Lisp_Object name, dir; |
f927c5ae | 202 | |
e29f86e4 RS |
203 | initial_argv = argv; |
204 | initial_argc = argc; | |
205 | ||
cb421be8 | 206 | Vinvocation_name = Ffile_name_nondirectory (build_string (argv[0])); |
ace40a69 RS |
207 | Vinvocation_directory = Ffile_name_directory (build_string (argv[0])); |
208 | /* If we got no directory in argv[0], search PATH to find where | |
209 | Emacs actually came from. */ | |
210 | if (NILP (Vinvocation_directory)) | |
211 | { | |
212 | Lisp_Object found; | |
213 | int yes = openp (Vexec_path, Vinvocation_name, | |
6c362a8b | 214 | EXEC_SUFFIXES, &found, 1); |
e443f843 | 215 | if (yes == 1) |
ace40a69 RS |
216 | Vinvocation_directory = Ffile_name_directory (found); |
217 | } | |
59653951 | 218 | |
07f4d123 RS |
219 | Vinstallation_directory = Qnil; |
220 | ||
221 | if (!NILP (Vinvocation_directory)) | |
222 | { | |
223 | dir = Vinvocation_directory; | |
224 | name = Fexpand_file_name (Vinvocation_name, dir); | |
225 | while (1) | |
226 | { | |
f5ab9736 | 227 | Lisp_Object tem, lib_src_exists; |
07f4d123 RS |
228 | Lisp_Object etc_exists, info_exists; |
229 | ||
f5ab9736 RS |
230 | /* See if dir contains subdirs for use by Emacs. |
231 | Check for the ones that would exist in a build directory, | |
232 | not including lisp and info. */ | |
233 | tem = Fexpand_file_name (build_string ("lib-src"), dir); | |
234 | lib_src_exists = Ffile_exists_p (tem); | |
235 | if (!NILP (lib_src_exists)) | |
07f4d123 | 236 | { |
f5ab9736 RS |
237 | tem = Fexpand_file_name (build_string ("etc"), dir); |
238 | etc_exists = Ffile_exists_p (tem); | |
239 | if (!NILP (etc_exists)) | |
07f4d123 | 240 | { |
f5ab9736 RS |
241 | Vinstallation_directory |
242 | = Ffile_name_as_directory (dir); | |
243 | break; | |
07f4d123 RS |
244 | } |
245 | } | |
246 | ||
247 | /* See if dir's parent contains those subdirs. */ | |
f5ab9736 RS |
248 | tem = Fexpand_file_name (build_string ("../lib-src"), dir); |
249 | lib_src_exists = Ffile_exists_p (tem); | |
250 | if (!NILP (lib_src_exists)) | |
07f4d123 | 251 | { |
f5ab9736 RS |
252 | tem = Fexpand_file_name (build_string ("../etc"), dir); |
253 | etc_exists = Ffile_exists_p (tem); | |
254 | if (!NILP (etc_exists)) | |
07f4d123 | 255 | { |
f5ab9736 RS |
256 | tem = Fexpand_file_name (build_string (".."), dir); |
257 | Vinstallation_directory | |
258 | = Ffile_name_as_directory (tem); | |
259 | break; | |
07f4d123 RS |
260 | } |
261 | } | |
262 | ||
263 | /* If the Emacs executable is actually a link, | |
264 | next try the dir that the link points into. */ | |
265 | tem = Ffile_symlink_p (name); | |
266 | if (!NILP (tem)) | |
267 | { | |
260ec24d | 268 | name = Fexpand_file_name (tem, dir); |
07f4d123 RS |
269 | dir = Ffile_name_directory (name); |
270 | } | |
271 | else | |
272 | break; | |
273 | } | |
274 | } | |
275 | ||
f927c5ae JB |
276 | Vcommand_line_args = Qnil; |
277 | ||
278 | for (i = argc - 1; i >= 0; i--) | |
279 | { | |
280 | if (i == 0 || i > skip_args) | |
281 | Vcommand_line_args | |
282 | = Fcons (build_string (argv[i]), Vcommand_line_args); | |
283 | } | |
284 | } | |
59653951 JB |
285 | |
286 | DEFUN ("invocation-name", Finvocation_name, Sinvocation_name, 0, 0, 0, | |
287 | "Return the program name that was used to run Emacs.\n\ | |
288 | Any directory names are omitted.") | |
289 | () | |
290 | { | |
291 | return Fcopy_sequence (Vinvocation_name); | |
292 | } | |
293 | ||
ace40a69 RS |
294 | DEFUN ("invocation-directory", Finvocation_directory, Sinvocation_directory, |
295 | 0, 0, 0, | |
296 | "Return the directory name in which the Emacs executable was located") | |
297 | () | |
298 | { | |
299 | return Fcopy_sequence (Vinvocation_directory); | |
300 | } | |
301 | ||
f927c5ae JB |
302 | \f |
303 | #ifdef VMS | |
304 | #ifdef LINK_CRTL_SHARE | |
305 | #ifdef SHAREABLE_LIB_BUG | |
306 | extern noshare char **environ; | |
307 | #endif /* SHAREABLE_LIB_BUG */ | |
308 | #endif /* LINK_CRTL_SHARE */ | |
309 | #endif /* VMS */ | |
310 | ||
a90538cb | 311 | #ifndef ORDINARY_LINK |
efd241cc RS |
312 | /* We don't include crtbegin.o and crtend.o in the link, |
313 | so these functions and variables might be missed. | |
314 | Provide dummy definitions to avoid error. | |
315 | (We don't have any real constructors or destructors.) */ | |
316 | #ifdef __GNUC__ | |
46e65b73 | 317 | #ifndef GCC_CTORS_IN_LIBC |
c83a7064 | 318 | __do_global_ctors () |
efd241cc | 319 | {} |
c83a7064 RS |
320 | __do_global_ctors_aux () |
321 | {} | |
33143604 RS |
322 | __do_global_dtors () |
323 | {} | |
64c1864a RS |
324 | /* Linux has a bug in its library; avoid an error. */ |
325 | #ifndef LINUX | |
c83a7064 | 326 | char * __CTOR_LIST__[2] = { (char *) (-1), 0 }; |
64c1864a | 327 | #endif |
c83a7064 | 328 | char * __DTOR_LIST__[2] = { (char *) (-1), 0 }; |
46e65b73 | 329 | #endif /* GCC_CTORS_IN_LIBC */ |
c83a7064 | 330 | __main () |
efd241cc | 331 | {} |
efd241cc | 332 | #endif /* __GNUC__ */ |
a90538cb | 333 | #endif /* ORDINARY_LINK */ |
efd241cc | 334 | |
e2925360 KH |
335 | /* Test whether the next argument in ARGV matches SSTR or a prefix of |
336 | LSTR (at least MINLEN characters). If so, then if VALPTR is non-null | |
337 | (the argument is supposed to have a value) store in *VALPTR either | |
338 | the next argument or the portion of this one after the equal sign. | |
339 | ARGV is read starting at position *SKIPPTR; this index is advanced | |
340 | by the number of arguments used. | |
341 | ||
342 | Too bad we can't just use getopt for all of this, but we don't have | |
343 | enough information to do it right. */ | |
344 | static int | |
345 | argmatch (argv, sstr, lstr, minlen, valptr, skipptr) | |
346 | char **argv; | |
347 | char *sstr; | |
348 | char *lstr; | |
349 | int minlen; | |
350 | char **valptr; | |
351 | int *skipptr; | |
352 | { | |
353 | char *p; | |
354 | int arglen; | |
355 | char *arg = argv[*skipptr+1]; | |
356 | if (arg == NULL) | |
357 | return 0; | |
358 | if (strcmp (arg, sstr) == 0) | |
359 | { | |
360 | if (valptr != NULL) | |
361 | { | |
362 | *valptr = argv[*skipptr+2]; | |
363 | *skipptr += 2; | |
364 | } | |
365 | else | |
366 | *skipptr += 1; | |
367 | return 1; | |
368 | } | |
369 | arglen = (valptr != NULL && (p = index (arg, '=')) != NULL | |
370 | ? p - arg : strlen (arg)); | |
371 | if (arglen < minlen || strncmp (arg, lstr, arglen) != 0) | |
372 | return 0; | |
373 | else if (valptr == NULL) | |
374 | { | |
375 | *skipptr += 1; | |
376 | return 1; | |
377 | } | |
378 | else if (p != NULL) | |
379 | { | |
380 | *valptr = p+1; | |
381 | *skipptr += 1; | |
382 | return 1; | |
383 | } | |
384 | else if (argv[*skipptr+2] != NULL) | |
385 | { | |
386 | *valptr = argv[*skipptr+2]; | |
387 | *skipptr += 2; | |
388 | return 1; | |
389 | } | |
390 | else | |
391 | { | |
392 | return 0; | |
393 | } | |
394 | } | |
395 | ||
f927c5ae JB |
396 | /* ARGSUSED */ |
397 | main (argc, argv, envp) | |
398 | int argc; | |
399 | char **argv; | |
400 | char **envp; | |
401 | { | |
402 | char stack_bottom_variable; | |
403 | int skip_args = 0; | |
404 | extern int errno; | |
405 | extern sys_nerr; | |
f927c5ae JB |
406 | |
407 | /* Map in shared memory, if we are using that. */ | |
408 | #ifdef HAVE_SHM | |
e2925360 | 409 | if (argmatch (argv, "-nl", "--no-shared-memory", 6, NULL, &skip_args)) |
f927c5ae JB |
410 | { |
411 | map_in_data (0); | |
412 | /* The shared memory was just restored, which clobbered this. */ | |
413 | skip_args = 1; | |
414 | } | |
415 | else | |
416 | { | |
417 | map_in_data (1); | |
418 | /* The shared memory was just restored, which clobbered this. */ | |
419 | skip_args = 0; | |
420 | } | |
421 | #endif | |
422 | ||
19a36ec6 | 423 | #ifdef NeXT |
4b163808 | 424 | extern int malloc_cookie; |
19a36ec6 RS |
425 | |
426 | /* This helps out unexnext.c. */ | |
427 | if (initialized) | |
428 | if (malloc_jumpstart (malloc_cookie) != 0) | |
429 | printf ("malloc jumpstart failed!\n"); | |
430 | #endif /* NeXT */ | |
431 | ||
f927c5ae | 432 | #ifdef HAVE_X_WINDOWS |
fb8e9847 JB |
433 | /* Stupid kludge to catch command-line display spec. We can't |
434 | handle this argument entirely in window system dependent code | |
435 | because we don't even know which window system dependent code | |
436 | to run until we've recognized this argument. */ | |
f927c5ae JB |
437 | { |
438 | int i; | |
439 | ||
e2925360 KH |
440 | /* We don't check for a long option --display here, since the X code |
441 | won't be able to recognize that form anyway. */ | |
f927c5ae | 442 | for (i = 1; (i < argc && ! display_arg); i++) |
92381c7c | 443 | if (!strcmp (argv[i], "-d") || !strcmp (argv[i], "-display")) |
f927c5ae JB |
444 | display_arg = 1; |
445 | } | |
446 | #endif | |
447 | ||
448 | #ifdef VMS | |
449 | /* If -map specified, map the data file in */ | |
e2925360 KH |
450 | { |
451 | char *file; | |
452 | if (argmatch (argv, "-map", "--map-data", 3, &mapin_file, &skip_args)) | |
453 | mapin_data (file); | |
454 | } | |
f927c5ae JB |
455 | |
456 | #ifdef LINK_CRTL_SHARE | |
457 | #ifdef SHAREABLE_LIB_BUG | |
458 | /* Bletcherous shared libraries! */ | |
459 | if (!stdin) | |
460 | stdin = fdopen (0, "r"); | |
461 | if (!stdout) | |
462 | stdout = fdopen (1, "w"); | |
463 | if (!stderr) | |
464 | stderr = fdopen (2, "w"); | |
465 | if (!environ) | |
466 | environ = envp; | |
467 | #endif /* SHAREABLE_LIB_BUG */ | |
468 | #endif /* LINK_CRTL_SHARE */ | |
469 | #endif /* VMS */ | |
470 | ||
471 | /* Record (approximately) where the stack begins. */ | |
472 | stack_bottom = &stack_bottom_variable; | |
473 | ||
474 | #ifdef RUN_TIME_REMAP | |
475 | if (initialized) | |
476 | run_time_remap (argv[0]); | |
477 | #endif | |
478 | ||
479 | #ifdef USG_SHARED_LIBRARIES | |
480 | if (bss_end) | |
481 | brk (bss_end); | |
482 | #endif | |
483 | ||
484 | clearerr (stdin); | |
9ae8f997 | 485 | |
f927c5ae JB |
486 | #ifdef APOLLO |
487 | #ifndef APOLLO_SR10 | |
488 | /* If USE_DOMAIN_ACLS environment variable exists, | |
489 | use ACLs rather than UNIX modes. */ | |
490 | if (egetenv ("USE_DOMAIN_ACLS")) | |
491 | default_acl (USE_DEFACL); | |
492 | #endif | |
493 | #endif /* APOLLO */ | |
494 | ||
495 | #ifndef SYSTEM_MALLOC | |
496 | if (! initialized) | |
9ac0d9e0 JB |
497 | { |
498 | /* Arrange to get warning messages as memory fills up. */ | |
499 | memory_warnings (0, malloc_warning); | |
500 | ||
501 | /* Arrange to disable interrupt input while malloc and friends are | |
502 | running. */ | |
503 | uninterrupt_malloc (); | |
504 | } | |
f927c5ae JB |
505 | #endif /* not SYSTEM_MALLOC */ |
506 | ||
29b89fe0 RS |
507 | #ifdef MSDOS |
508 | /* We do all file input/output as binary files. When we need to translate | |
509 | newlines, we do that manually. */ | |
510 | _fmode = O_BINARY; | |
511 | (stdin)->_flag &= ~_IOTEXT; | |
512 | (stdout)->_flag &= ~_IOTEXT; | |
513 | (stderr)->_flag &= ~_IOTEXT; | |
514 | #endif /* MSDOS */ | |
515 | ||
a422068f | 516 | #ifdef SET_EMACS_PRIORITY |
3005da00 | 517 | if (emacs_priority) |
5aa7f46a | 518 | nice (emacs_priority); |
f927c5ae | 519 | setuid (getuid ()); |
a422068f | 520 | #endif /* SET_EMACS_PRIORITY */ |
f927c5ae | 521 | |
d8b3a65d | 522 | #ifdef EXTRA_INITIALIZE |
a9260219 | 523 | EXTRA_INITIALIZE; |
d8b3a65d RS |
524 | #endif |
525 | ||
f927c5ae JB |
526 | inhibit_window_system = 0; |
527 | ||
4fc0b45b | 528 | /* Handle the -t switch, which specifies filename to use as terminal */ |
e2925360 KH |
529 | { |
530 | char *term; | |
531 | if (argmatch (argv, "-t", "--terminal", 4, &term, &skip_args)) | |
532 | { | |
533 | int result; | |
534 | close (0); | |
535 | close (1); | |
536 | result = open (term, O_RDWR, 2 ); | |
537 | if (result < 0) | |
538 | { | |
539 | char *errstring = strerror (errno); | |
540 | fprintf (stderr, "emacs: %s: %s\n", term, errstring); | |
541 | exit (1); | |
542 | } | |
543 | dup (0); | |
544 | if (! isatty (0)) | |
545 | { | |
546 | fprintf (stderr, "emacs: %s: not a tty\n", term); | |
547 | exit (1); | |
548 | } | |
549 | fprintf (stderr, "Using %s\n", term); | |
f927c5ae | 550 | #ifdef HAVE_X_WINDOWS |
e2925360 | 551 | inhibit_window_system = 1; /* -t => -nw */ |
f927c5ae | 552 | #endif |
e2925360 KH |
553 | } |
554 | } | |
555 | if (argmatch (argv, "-nw", "--no-windows", 6, NULL, &skip_args)) | |
556 | inhibit_window_system = 1; | |
f927c5ae | 557 | |
e2925360 | 558 | /* Handle the -batch switch, which means don't do interactive display. */ |
f927c5ae | 559 | noninteractive = 0; |
e2925360 KH |
560 | if (argmatch (argv, "-batch", "--batch", 5, NULL, &skip_args)) |
561 | noninteractive = 1; | |
562 | ||
563 | /* Handle the --help option, which gives a usage message.. */ | |
564 | if (argmatch (argv, "-help", "--help", 3, NULL, &skip_args)) | |
f927c5ae | 565 | { |
e2925360 KH |
566 | printf ("\ |
567 | Usage: %s [-t term] [--terminal term] [-nw] [--no-windows] [--batch]\n\ | |
568 | [-q] [--no-init-file] [-u user] [--user user] [--debug-init]\n\ | |
569 | \(Arguments above this line must be first; those below may be in any order)\n\ | |
570 | [-f func] [--funcall func] [-l file] [--load file] [--insert file]\n\ | |
571 | file-to-visit [--kill]\n", argv[0]); | |
572 | exit (0); | |
f927c5ae JB |
573 | } |
574 | ||
edb85f59 RS |
575 | if (! noninteractive) |
576 | { | |
577 | #ifdef BSD_PGRPS | |
578 | if (initialized) | |
579 | { | |
580 | inherited_pgroup = EMACS_GETPGRP (0); | |
581 | setpgrp (0, getpid ()); | |
582 | } | |
583 | #else | |
584 | #if defined (USG5) && defined (INTERRUPT_INPUT) | |
585 | setpgrp (); | |
586 | #endif | |
587 | #endif | |
588 | } | |
589 | ||
fb8e9847 JB |
590 | #ifdef POSIX_SIGNALS |
591 | init_signals (); | |
592 | #endif | |
593 | ||
f927c5ae JB |
594 | if ( |
595 | #ifndef CANNOT_DUMP | |
596 | ! noninteractive || initialized | |
597 | #else | |
598 | 1 | |
599 | #endif | |
600 | ) | |
601 | { | |
602 | /* Don't catch these signals in batch mode if not initialized. | |
603 | On some machines, this sets static data that would make | |
604 | signal fail to work right when the dumped Emacs is run. */ | |
605 | signal (SIGHUP, fatal_error_signal); | |
606 | signal (SIGQUIT, fatal_error_signal); | |
607 | signal (SIGILL, fatal_error_signal); | |
608 | signal (SIGTRAP, fatal_error_signal); | |
a90538cb JB |
609 | #ifdef SIGIOT |
610 | /* This is missing on some systems - OS/2, for example. */ | |
f927c5ae | 611 | signal (SIGIOT, fatal_error_signal); |
a90538cb | 612 | #endif |
f927c5ae JB |
613 | #ifdef SIGEMT |
614 | signal (SIGEMT, fatal_error_signal); | |
615 | #endif | |
616 | signal (SIGFPE, fatal_error_signal); | |
00eaaa32 | 617 | #ifdef SIGBUS |
f927c5ae | 618 | signal (SIGBUS, fatal_error_signal); |
00eaaa32 | 619 | #endif |
f927c5ae | 620 | signal (SIGSEGV, fatal_error_signal); |
00eaaa32 | 621 | #ifdef SIGSYS |
f927c5ae | 622 | signal (SIGSYS, fatal_error_signal); |
00eaaa32 | 623 | #endif |
f927c5ae JB |
624 | signal (SIGTERM, fatal_error_signal); |
625 | #ifdef SIGXCPU | |
626 | signal (SIGXCPU, fatal_error_signal); | |
627 | #endif | |
628 | #ifdef SIGXFSZ | |
629 | signal (SIGXFSZ, fatal_error_signal); | |
630 | #endif /* SIGXFSZ */ | |
631 | ||
271c7b7c RS |
632 | #ifdef SIGDANGER |
633 | /* This just means available memory is getting low. */ | |
634 | signal (SIGDANGER, memory_warning_signal); | |
635 | #endif | |
636 | ||
f927c5ae | 637 | #ifdef AIX |
56e034fa RS |
638 | /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */ |
639 | signal (SIGXCPU, fatal_error_signal); | |
0aef8561 | 640 | #ifndef _I386 |
f927c5ae | 641 | signal (SIGIOINT, fatal_error_signal); |
0aef8561 | 642 | #endif |
f927c5ae JB |
643 | signal (SIGGRANT, fatal_error_signal); |
644 | signal (SIGRETRACT, fatal_error_signal); | |
645 | signal (SIGSOUND, fatal_error_signal); | |
646 | signal (SIGMSG, fatal_error_signal); | |
647 | #endif /* AIX */ | |
648 | } | |
649 | ||
650 | noninteractive1 = noninteractive; | |
651 | ||
652 | /* Perform basic initializations (not merely interning symbols) */ | |
653 | ||
654 | if (!initialized) | |
655 | { | |
656 | init_alloc_once (); | |
657 | init_obarray (); | |
658 | init_eval_once (); | |
659 | init_syntax_once (); /* Create standard syntax table. */ | |
660 | /* Must be done before init_buffer */ | |
661 | init_casetab_once (); | |
662 | init_buffer_once (); /* Create buffer table and some buffers */ | |
663 | init_minibuf_once (); /* Create list of minibuffers */ | |
664 | /* Must precede init_window_once */ | |
665 | init_window_once (); /* Init the window system */ | |
666 | } | |
667 | ||
668 | init_alloc (); | |
f927c5ae JB |
669 | init_eval (); |
670 | init_data (); | |
0e956009 | 671 | |
29b89fe0 RS |
672 | #ifdef MSDOS |
673 | /* Call early 'cause init_environment needs it. */ | |
674 | init_dosfns (); | |
675 | /* Set defaults for several environment variables. */ | |
676 | if (initialized) init_environment (argc, argv, skip_args); | |
677 | #endif | |
678 | ||
0e956009 JB |
679 | /* egetenv is a pretty low-level facility, which may get called in |
680 | many circumstances; it seems flimsy to put off initializing it | |
681 | until calling init_callproc. */ | |
682 | set_process_environment (); | |
93aed04d RS |
683 | /* AIX crashes are reported in system versions 3.2.3 and 3.2.4 |
684 | if this is not done. Do it after set_process_environment so that we | |
685 | don't pollute Vprocess_environment. */ | |
686 | #ifdef AIX | |
687 | putenv ("LANG=C"); | |
688 | #endif | |
0e956009 | 689 | |
ace40a69 RS |
690 | init_buffer (); /* Init default directory of main buffer */ |
691 | ||
7928f0b5 | 692 | init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */ |
ace40a69 | 693 | init_cmdargs (argc, argv, skip_args); /* Must precede init_lread. */ |
7928f0b5 | 694 | init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */ |
fb8e9847 | 695 | init_lread (); |
f927c5ae | 696 | |
f927c5ae JB |
697 | if (!noninteractive) |
698 | { | |
699 | #ifdef VMS | |
1cbd5d9d | 700 | init_vms_input ();/* init_display calls get_frame_size, that needs this */ |
f927c5ae JB |
701 | #endif /* VMS */ |
702 | init_display (); /* Determine terminal type. init_sys_modes uses results */ | |
703 | } | |
704 | init_keyboard (); /* This too must precede init_sys_modes */ | |
f927c5ae JB |
705 | #ifdef VMS |
706 | init_vmsproc (); /* And this too. */ | |
707 | #endif /* VMS */ | |
708 | init_sys_modes (); /* Init system terminal modes (RAW or CBREAK, etc.) */ | |
709 | init_xdisp (); | |
710 | init_macros (); | |
711 | init_editfns (); | |
712 | #ifdef LISP_FLOAT_TYPE | |
713 | init_floatfns (); | |
714 | #endif | |
715 | #ifdef VMS | |
716 | init_vmsfns (); | |
717 | #endif /* VMS */ | |
f927c5ae | 718 | init_process (); |
32676c08 JB |
719 | #ifdef CLASH_DETECTION |
720 | init_filelock (); | |
721 | #endif /* CLASH_DETECTION */ | |
f927c5ae JB |
722 | |
723 | /* Intern the names of all standard functions and variables; define standard keys */ | |
724 | ||
725 | if (!initialized) | |
726 | { | |
727 | /* The basic levels of Lisp must come first */ | |
728 | /* And data must come first of all | |
729 | for the sake of symbols like error-message */ | |
730 | syms_of_data (); | |
731 | syms_of_alloc (); | |
fb8e9847 | 732 | syms_of_lread (); |
f927c5ae JB |
733 | syms_of_print (); |
734 | syms_of_eval (); | |
735 | syms_of_fns (); | |
f927c5ae | 736 | syms_of_floatfns (); |
f927c5ae JB |
737 | |
738 | syms_of_abbrev (); | |
739 | syms_of_buffer (); | |
740 | syms_of_bytecode (); | |
741 | syms_of_callint (); | |
742 | syms_of_casefiddle (); | |
743 | syms_of_casetab (); | |
744 | syms_of_callproc (); | |
745 | syms_of_cmds (); | |
746 | #ifndef NO_DIR_LIBRARY | |
747 | syms_of_dired (); | |
748 | #endif /* not NO_DIR_LIBRARY */ | |
749 | syms_of_display (); | |
750 | syms_of_doc (); | |
751 | syms_of_editfns (); | |
752 | syms_of_emacs (); | |
753 | syms_of_fileio (); | |
754 | #ifdef CLASH_DETECTION | |
755 | syms_of_filelock (); | |
756 | #endif /* CLASH_DETECTION */ | |
757 | syms_of_indent (); | |
758 | syms_of_keyboard (); | |
759 | syms_of_keymap (); | |
760 | syms_of_macros (); | |
761 | syms_of_marker (); | |
762 | syms_of_minibuf (); | |
763 | syms_of_mocklisp (); | |
f927c5ae | 764 | syms_of_process (); |
f927c5ae | 765 | syms_of_search (); |
1cbd5d9d | 766 | syms_of_frame (); |
f927c5ae | 767 | syms_of_syntax (); |
0d934e7b | 768 | syms_of_term (); |
f927c5ae | 769 | syms_of_undo (); |
bef79ee4 JA |
770 | |
771 | /* Only defined if Emacs is compiled with USE_TEXT_PROPERTIES */ | |
772 | syms_of_textprop (); | |
f927c5ae JB |
773 | #ifdef VMS |
774 | syms_of_vmsproc (); | |
775 | #endif /* VMS */ | |
776 | syms_of_window (); | |
777 | syms_of_xdisp (); | |
778 | #ifdef HAVE_X_WINDOWS | |
72412588 | 779 | syms_of_xterm (); |
f927c5ae | 780 | syms_of_xfns (); |
9c3f23b7 | 781 | syms_of_xfaces (); |
72412588 JB |
782 | #ifdef HAVE_X11 |
783 | syms_of_xselect (); | |
784 | #endif | |
dbc4e1c1 | 785 | #ifdef HAVE_X_MENU |
f927c5ae JB |
786 | syms_of_xmenu (); |
787 | #endif /* HAVE_X_MENU */ | |
788 | #endif /* HAVE_X_WINDOWS */ | |
789 | ||
790 | #ifdef SYMS_SYSTEM | |
791 | SYMS_SYSTEM; | |
792 | #endif | |
793 | ||
794 | #ifdef SYMS_MACHINE | |
795 | SYMS_MACHINE; | |
796 | #endif | |
797 | ||
798 | keys_of_casefiddle (); | |
799 | keys_of_cmds (); | |
800 | keys_of_buffer (); | |
801 | keys_of_keyboard (); | |
802 | keys_of_keymap (); | |
803 | keys_of_macros (); | |
804 | keys_of_minibuf (); | |
805 | keys_of_window (); | |
5e67fbc2 | 806 | keys_of_frame (); |
f927c5ae JB |
807 | } |
808 | ||
809 | if (!initialized) | |
810 | { | |
e2925360 | 811 | char *file; |
f927c5ae | 812 | /* Handle -l loadup-and-dump, args passed by Makefile. */ |
e2925360 | 813 | if (argmatch (argv, "-l", "--load", 3, &file, &skip_args)) |
f927c5ae | 814 | Vtop_level = Fcons (intern ("load"), |
e2925360 | 815 | Fcons (build_string (file), Qnil)); |
f927c5ae JB |
816 | #ifdef CANNOT_DUMP |
817 | /* Unless next switch is -nl, load "loadup.el" first thing. */ | |
e2925360 | 818 | if (!argmatch (argv, "-nl", "--no-loadup", 6, NULL, &skip_args)) |
f927c5ae JB |
819 | Vtop_level = Fcons (intern ("load"), |
820 | Fcons (build_string ("loadup.el"), Qnil)); | |
821 | #endif /* CANNOT_DUMP */ | |
822 | } | |
823 | ||
824 | initialized = 1; | |
825 | ||
afe9fae9 RS |
826 | #if defined (sun) || defined (LOCALTIME_CACHE) |
827 | /* sun's localtime has a bug. it caches the value of the time | |
279cc2b8 JB |
828 | zone rather than looking it up every time. Since localtime() is |
829 | called to bolt the undumping time into the undumped emacs, this | |
afe9fae9 RS |
830 | results in localtime ignoring the TZ environment variable. |
831 | This flushes the new TZ value into localtime. */ | |
832 | tzset (); | |
833 | #endif /* defined (sun) || defined (LOCALTIME_CACHE) */ | |
279cc2b8 | 834 | |
e2925360 KH |
835 | /* Handle the GNU standard option --version. */ |
836 | if (argmatch (argv, "-version", "--version", 3, NULL, &skip_args)) | |
837 | { | |
838 | Lisp_Object ver; | |
839 | ver = call0 (intern ("emacs-version")); | |
840 | if (STRINGP (ver)) | |
841 | printf ("%s\n", XSTRING (ver)->data); | |
842 | exit (0); | |
843 | } | |
844 | ||
f927c5ae JB |
845 | /* Enter editor command loop. This never returns. */ |
846 | Frecursive_edit (); | |
847 | /* NOTREACHED */ | |
848 | } | |
849 | \f | |
850 | DEFUN ("kill-emacs", Fkill_emacs, Skill_emacs, 0, 1, "P", | |
edc8ae07 | 851 | "Exit the Emacs job and kill it.\n\ |
f927c5ae JB |
852 | If ARG is an integer, return ARG as the exit program code.\n\ |
853 | If ARG is a string, stuff it as keyboard input.\n\n\ | |
854 | The value of `kill-emacs-hook', if not void,\n\ | |
855 | is a list of functions (of no args),\n\ | |
856 | all of which are called before Emacs is actually killed.") | |
857 | (arg) | |
858 | Lisp_Object arg; | |
859 | { | |
860 | Lisp_Object hook, hook1; | |
861 | int i; | |
862 | struct gcpro gcpro1; | |
863 | ||
864 | GCPRO1 (arg); | |
865 | ||
866 | if (feof (stdin)) | |
867 | arg = Qt; | |
868 | ||
2447c626 | 869 | if (!NILP (Vrun_hooks) && !noninteractive) |
f927c5ae JB |
870 | call1 (Vrun_hooks, intern ("kill-emacs-hook")); |
871 | ||
f927c5ae JB |
872 | UNGCPRO; |
873 | ||
874 | /* Is it really necessary to do this deassign | |
875 | when we are going to exit anyway? */ | |
876 | /* #ifdef VMS | |
877 | stop_vms_input (); | |
878 | #endif */ | |
40be253a | 879 | |
d0068e25 | 880 | shut_down_emacs (0, 0, STRINGP (arg) ? arg : Qnil); |
40be253a | 881 | |
55ccc0b3 | 882 | exit (INTEGERP (arg) ? XINT (arg) |
f927c5ae JB |
883 | #ifdef VMS |
884 | : 1 | |
885 | #else | |
886 | : 0 | |
887 | #endif | |
888 | ); | |
889 | /* NOTREACHED */ | |
890 | } | |
40be253a JB |
891 | |
892 | ||
893 | /* Perform an orderly shutdown of Emacs. Autosave any modified | |
894 | buffers, kill any child processes, clean up the terminal modes (if | |
895 | we're in the foreground), and other stuff like that. Don't perform | |
896 | any redisplay; this may be called when Emacs is shutting down in | |
897 | the background, or after its X connection has died. | |
898 | ||
899 | If SIG is a signal number, print a message for it. | |
900 | ||
901 | This is called by fatal signal handlers, X protocol error handlers, | |
902 | and Fkill_emacs. */ | |
f7ab4e3d | 903 | |
40be253a | 904 | void |
f7ab4e3d | 905 | shut_down_emacs (sig, no_x, stuff) |
41423a80 | 906 | int sig, no_x; |
f7ab4e3d | 907 | Lisp_Object stuff; |
40be253a | 908 | { |
829d872b RS |
909 | /* Prevent running of hooks from now on. */ |
910 | Vrun_hooks = Qnil; | |
911 | ||
40be253a JB |
912 | /* If we are controlling the terminal, reset terminal modes */ |
913 | #ifdef EMACS_HAVE_TTY_PGRP | |
914 | { | |
d04d81d2 RS |
915 | int pgrp = EMACS_GETPGRP (0); |
916 | ||
40be253a JB |
917 | int tpgrp; |
918 | if (EMACS_GET_TTY_PGRP (0, &tpgrp) != -1 | |
5a570e37 | 919 | && tpgrp == pgrp) |
40be253a JB |
920 | { |
921 | fflush (stdout); | |
922 | reset_sys_modes (); | |
923 | if (sig && sig != SIGTERM) | |
924 | fprintf (stderr, "Fatal error (%d).", sig); | |
925 | } | |
926 | } | |
927 | #else | |
928 | fflush (stdout); | |
929 | reset_sys_modes (); | |
930 | #endif | |
931 | ||
f7ab4e3d RS |
932 | stuff_buffered_input (stuff); |
933 | ||
40be253a JB |
934 | kill_buffer_processes (Qnil); |
935 | Fdo_auto_save (Qt, Qnil); | |
936 | ||
937 | #ifdef CLASH_DETECTION | |
938 | unlock_all_files (); | |
939 | #endif | |
940 | ||
941 | #ifdef VMS | |
942 | kill_vms_processes (); | |
943 | #endif | |
944 | ||
5e7f8733 | 945 | #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */ |
41423a80 | 946 | #ifdef HAVE_X_WINDOWS |
f7511647 RS |
947 | /* It's not safe to call intern here. Maybe we are crashing. */ |
948 | if (!noninteractive && SYMBOLP (Vwindow_system) | |
949 | && XSYMBOL (Vwindow_system)->name->size == 1 | |
950 | && XSYMBOL (Vwindow_system)->name->data[0] == 'x' | |
951 | && ! no_x) | |
41423a80 RS |
952 | Fx_close_current_connection (); |
953 | #endif /* HAVE_X_WINDOWS */ | |
5e7f8733 | 954 | #endif |
41423a80 | 955 | |
40be253a JB |
956 | #ifdef SIGIO |
957 | /* There is a tendency for a SIGIO signal to arrive within exit, | |
958 | and cause a SIGHUP because the input descriptor is already closed. */ | |
959 | unrequest_sigio (); | |
960 | signal (SIGIO, SIG_IGN); | |
961 | #endif | |
962 | } | |
963 | ||
964 | ||
f927c5ae JB |
965 | \f |
966 | #ifndef CANNOT_DUMP | |
967 | /* Nothing like this can be implemented on an Apollo. | |
968 | What a loss! */ | |
969 | ||
970 | #ifdef HAVE_SHM | |
971 | ||
972 | DEFUN ("dump-emacs-data", Fdump_emacs_data, Sdump_emacs_data, 1, 1, 0, | |
973 | "Dump current state of Emacs into data file FILENAME.\n\ | |
974 | This function exists on systems that use HAVE_SHM.") | |
975 | (intoname) | |
976 | Lisp_Object intoname; | |
977 | { | |
978 | extern int my_edata; | |
979 | Lisp_Object tem; | |
f927c5ae JB |
980 | |
981 | CHECK_STRING (intoname, 0); | |
982 | intoname = Fexpand_file_name (intoname, Qnil); | |
983 | ||
984 | tem = Vpurify_flag; | |
985 | Vpurify_flag = Qnil; | |
986 | ||
987 | fflush (stdout); | |
988 | /* Tell malloc where start of impure now is */ | |
989 | /* Also arrange for warnings when nearly out of space. */ | |
990 | #ifndef SYSTEM_MALLOC | |
70eb2c3e | 991 | memory_warnings (&my_edata, malloc_warning); |
f927c5ae JB |
992 | #endif |
993 | map_out_data (XSTRING (intoname)->data); | |
994 | ||
995 | Vpurify_flag = tem; | |
996 | ||
997 | return Qnil; | |
998 | } | |
999 | ||
1000 | #else /* not HAVE_SHM */ | |
1001 | ||
1002 | DEFUN ("dump-emacs", Fdump_emacs, Sdump_emacs, 2, 2, 0, | |
1003 | "Dump current state of Emacs into executable file FILENAME.\n\ | |
1004 | Take symbols from SYMFILE (presumably the file you executed to run Emacs).\n\ | |
1005 | This is used in the file `loadup.el' when building Emacs.\n\ | |
1006 | \n\ | |
1007 | Bind `command-line-processed' to nil before dumping,\n\ | |
1008 | if you want the dumped Emacs to process its command line\n\ | |
1009 | and announce itself normally when it is run.") | |
1010 | (intoname, symname) | |
1011 | Lisp_Object intoname, symname; | |
1012 | { | |
1013 | extern int my_edata; | |
1014 | Lisp_Object tem; | |
f927c5ae JB |
1015 | |
1016 | CHECK_STRING (intoname, 0); | |
1017 | intoname = Fexpand_file_name (intoname, Qnil); | |
2447c626 | 1018 | if (!NILP (symname)) |
f927c5ae JB |
1019 | { |
1020 | CHECK_STRING (symname, 0); | |
1021 | if (XSTRING (symname)->size) | |
1022 | symname = Fexpand_file_name (symname, Qnil); | |
1023 | } | |
1024 | ||
1025 | tem = Vpurify_flag; | |
1026 | Vpurify_flag = Qnil; | |
1027 | ||
1028 | fflush (stdout); | |
1029 | #ifdef VMS | |
1030 | mapout_data (XSTRING (intoname)->data); | |
1031 | #else | |
1032 | /* Tell malloc where start of impure now is */ | |
1033 | /* Also arrange for warnings when nearly out of space. */ | |
1034 | #ifndef SYSTEM_MALLOC | |
70eb2c3e | 1035 | memory_warnings (&my_edata, malloc_warning); |
f927c5ae JB |
1036 | #endif |
1037 | unexec (XSTRING (intoname)->data, | |
2447c626 | 1038 | !NILP (symname) ? XSTRING (symname)->data : 0, &my_edata, 0, 0); |
f927c5ae JB |
1039 | #endif /* not VMS */ |
1040 | ||
1041 | Vpurify_flag = tem; | |
1042 | ||
1043 | return Qnil; | |
1044 | } | |
1045 | ||
1046 | #endif /* not HAVE_SHM */ | |
1047 | ||
1048 | #endif /* not CANNOT_DUMP */ | |
1049 | \f | |
4b163808 | 1050 | #ifndef SEPCHAR |
f927c5ae JB |
1051 | #define SEPCHAR ':' |
1052 | #endif | |
1053 | ||
1054 | Lisp_Object | |
1055 | decode_env_path (evarname, defalt) | |
1056 | char *evarname, *defalt; | |
1057 | { | |
1058 | register char *path, *p; | |
f927c5ae JB |
1059 | |
1060 | Lisp_Object lpath; | |
1061 | ||
2447c626 JB |
1062 | /* It's okay to use getenv here, because this function is only used |
1063 | to initialize variables when Emacs starts up, and isn't called | |
1064 | after that. */ | |
e065a56e JB |
1065 | if (evarname != 0) |
1066 | path = (char *) getenv (evarname); | |
1067 | else | |
1068 | path = 0; | |
f927c5ae JB |
1069 | if (!path) |
1070 | path = defalt; | |
1071 | lpath = Qnil; | |
1072 | while (1) | |
1073 | { | |
1074 | p = index (path, SEPCHAR); | |
1075 | if (!p) p = path + strlen (path); | |
1076 | lpath = Fcons (p - path ? make_string (path, p - path) : Qnil, | |
1077 | lpath); | |
1078 | if (*p) | |
1079 | path = p + 1; | |
1080 | else | |
1081 | break; | |
1082 | } | |
1083 | return Fnreverse (lpath); | |
1084 | } | |
1085 | ||
1086 | syms_of_emacs () | |
1087 | { | |
83591e66 | 1088 | #ifndef CANNOT_DUMP |
f927c5ae JB |
1089 | #ifdef HAVE_SHM |
1090 | defsubr (&Sdump_emacs_data); | |
1091 | #else | |
1092 | defsubr (&Sdump_emacs); | |
83591e66 | 1093 | #endif |
f927c5ae JB |
1094 | #endif |
1095 | ||
1096 | defsubr (&Skill_emacs); | |
1097 | ||
59653951 | 1098 | defsubr (&Sinvocation_name); |
ace40a69 | 1099 | defsubr (&Sinvocation_directory); |
59653951 | 1100 | |
f927c5ae JB |
1101 | DEFVAR_LISP ("command-line-args", &Vcommand_line_args, |
1102 | "Args passed by shell to Emacs, as a list of strings."); | |
1103 | ||
1104 | DEFVAR_LISP ("system-type", &Vsystem_type, | |
1105 | "Value is symbol indicating type of operating system you are using."); | |
1106 | Vsystem_type = intern (SYSTEM_TYPE); | |
1107 | ||
271c7b7c RS |
1108 | DEFVAR_LISP ("system-configuration", &Vsystem_configuration, |
1109 | "Value is string indicating configuration Emacs was built for."); | |
f7511647 | 1110 | Vsystem_configuration = build_string (EMACS_CONFIGURATION); |
271c7b7c | 1111 | |
f0fc0b1a KH |
1112 | DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options, |
1113 | "String containing the configuration options Emacs was built with."); | |
1114 | Vsystem_configuration_options = build_string (EMACS_CONFIG_OPTIONS); | |
1115 | ||
f927c5ae JB |
1116 | DEFVAR_BOOL ("noninteractive", &noninteractive1, |
1117 | "Non-nil means Emacs is running without interactive terminal."); | |
e5d77022 | 1118 | |
e5d77022 | 1119 | DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook, |
edc8ae07 JB |
1120 | "Hook to be run whenever kill-emacs is called.\n\ |
1121 | Since kill-emacs may be invoked when the terminal is disconnected (or\n\ | |
1122 | in other similar situations), functions placed on this hook should not\n\ | |
679aee02 | 1123 | expect to be able to interact with the user."); |
edc8ae07 | 1124 | Vkill_emacs_hook = Qnil; |
3005da00 RS |
1125 | |
1126 | DEFVAR_INT ("emacs-priority", &emacs_priority, | |
1127 | "Priority for Emacs to run at.\n\ | |
1128 | This value is effective only if set before Emacs is dumped,\n\ | |
1129 | and only if the Emacs executable is installed with setuid to permit\n\ | |
621ecf99 | 1130 | it to change priority. (Emacs sets its uid back to the real uid.)\n\ |
a422068f | 1131 | Currently, you need to define SET_EMACS_PRIORITY in `config.h'\n\ |
ce305b11 | 1132 | before you compile Emacs, to enable the code for this feature."); |
3005da00 | 1133 | emacs_priority = 0; |
59653951 | 1134 | |
f67de86f RS |
1135 | DEFVAR_LISP ("invocation-name", &Vinvocation_name, |
1136 | "The program name that was used to run Emacs.\n\ | |
1137 | Any directory names are omitted."); | |
1138 | ||
1139 | DEFVAR_LISP ("invocation-directory", &Vinvocation_directory, | |
1140 | "The directory in which the Emacs executable was found, to run it.\n\ | |
1141 | The value is nil if that directory's name is not known."); | |
1142 | ||
1143 | DEFVAR_LISP ("installation-directory", &Vinstallation_directory, | |
1144 | "A directory within which to look for the `lib-src' and `etc' directories.\n\ | |
1145 | This is non-nil when we can't find those directories in their standard\n\ | |
1146 | installed locations, but we can find them\n\ | |
1147 | near where the Emacs executable was found."); | |
07f4d123 | 1148 | Vinstallation_directory = Qnil; |
f927c5ae | 1149 | } |