Commit | Line | Data |
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f927c5ae | 1 | /* Fully extensible Emacs, running on Unix, intended for GNU. |
c6c5df7f | 2 | Copyright (C) 1985, 1986, 1987, 1993 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 | ||
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 | ||
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 | ||
f927c5ae JB |
56 | /* Command line args from shell, as list of strings */ |
57 | Lisp_Object Vcommand_line_args; | |
58 | ||
59653951 JB |
59 | /* The name under which Emacs was invoked, with any leading directory |
60 | names discarded. */ | |
61 | Lisp_Object Vinvocation_name; | |
62 | ||
ace40a69 RS |
63 | /* The directory name from which Emacs was invoked. */ |
64 | Lisp_Object Vinvocation_directory; | |
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 | ||
5aa7f46a JB |
81 | /* If nonzero, set Emacs to run at this priority. This is also used |
82 | in child_setup and sys_suspend to make sure subshells run at normal | |
83 | priority; Those functions have their own extern declaration. */ | |
3005da00 RS |
84 | int emacs_priority; |
85 | ||
9ae8f997 JB |
86 | #ifdef BSD |
87 | /* See sysdep.c. */ | |
88 | extern int inherited_pgroup; | |
89 | #endif | |
90 | ||
f927c5ae JB |
91 | #ifdef HAVE_X_WINDOWS |
92 | /* If non-zero, -d was specified, meaning we're using some window system. */ | |
93 | int display_arg; | |
94 | #endif | |
95 | ||
96 | /* An address near the bottom of the stack. | |
97 | Tells GC how to save a copy of the stack. */ | |
98 | char *stack_bottom; | |
99 | ||
100 | #ifdef HAVE_X_WINDOWS | |
101 | extern Lisp_Object Vwindow_system; | |
102 | #endif /* HAVE_X_WINDOWS */ | |
103 | ||
104 | #ifdef USG_SHARED_LIBRARIES | |
105 | /* If nonzero, this is the place to put the end of the writable segment | |
106 | at startup. */ | |
107 | ||
108 | unsigned int bss_end = 0; | |
109 | #endif | |
110 | ||
111 | /* Nonzero means running Emacs without interactive terminal. */ | |
112 | ||
113 | int noninteractive; | |
114 | ||
115 | /* Value of Lisp variable `noninteractive'. | |
116 | Normally same as C variable `noninteractive' | |
117 | but nothing terrible happens if user sets this one. */ | |
118 | ||
119 | int noninteractive1; | |
120 | \f | |
121 | /* Signal code for the fatal signal that was received */ | |
122 | int fatal_error_code; | |
123 | ||
124 | /* Nonzero if handling a fatal error already */ | |
125 | int fatal_error_in_progress; | |
126 | ||
127 | /* Handle bus errors, illegal instruction, etc. */ | |
2447c626 | 128 | SIGTYPE |
f927c5ae JB |
129 | fatal_error_signal (sig) |
130 | int sig; | |
131 | { | |
f927c5ae JB |
132 | fatal_error_code = sig; |
133 | signal (sig, SIG_DFL); | |
134 | ||
135 | /* If fatal error occurs in code below, avoid infinite recursion. */ | |
8090eb09 JB |
136 | if (! fatal_error_in_progress) |
137 | { | |
138 | fatal_error_in_progress = 1; | |
f927c5ae | 139 | |
f7ab4e3d | 140 | shut_down_emacs (sig, 0, Qnil); |
8090eb09 | 141 | } |
f927c5ae JB |
142 | |
143 | #ifdef VMS | |
f927c5ae JB |
144 | LIB$STOP (SS$_ABORT); |
145 | #else | |
8090eb09 JB |
146 | /* Signal the same code; this time it will really be fatal. |
147 | Remember that since we're in a signal handler, the signal we're | |
148 | going to send is probably blocked, so we have to unblock it if we | |
149 | want to really receive it. */ | |
a90538cb | 150 | sigunblock (sigmask (fatal_error_code)); |
f927c5ae JB |
151 | kill (getpid (), fatal_error_code); |
152 | #endif /* not VMS */ | |
153 | } | |
154 | \f | |
155 | /* Code for dealing with Lisp access to the Unix command line */ | |
156 | ||
157 | static | |
158 | init_cmdargs (argc, argv, skip_args) | |
159 | int argc; | |
160 | char **argv; | |
161 | int skip_args; | |
162 | { | |
163 | register int i; | |
164 | ||
cb421be8 | 165 | Vinvocation_name = Ffile_name_nondirectory (build_string (argv[0])); |
ace40a69 RS |
166 | Vinvocation_directory = Ffile_name_directory (build_string (argv[0])); |
167 | /* If we got no directory in argv[0], search PATH to find where | |
168 | Emacs actually came from. */ | |
169 | if (NILP (Vinvocation_directory)) | |
170 | { | |
171 | Lisp_Object found; | |
172 | int yes = openp (Vexec_path, Vinvocation_name, | |
6c362a8b | 173 | EXEC_SUFFIXES, &found, 1); |
ace40a69 RS |
174 | if (yes) |
175 | Vinvocation_directory = Ffile_name_directory (found); | |
176 | } | |
59653951 | 177 | |
f927c5ae JB |
178 | Vcommand_line_args = Qnil; |
179 | ||
180 | for (i = argc - 1; i >= 0; i--) | |
181 | { | |
182 | if (i == 0 || i > skip_args) | |
183 | Vcommand_line_args | |
184 | = Fcons (build_string (argv[i]), Vcommand_line_args); | |
185 | } | |
186 | } | |
59653951 JB |
187 | |
188 | DEFUN ("invocation-name", Finvocation_name, Sinvocation_name, 0, 0, 0, | |
189 | "Return the program name that was used to run Emacs.\n\ | |
190 | Any directory names are omitted.") | |
191 | () | |
192 | { | |
193 | return Fcopy_sequence (Vinvocation_name); | |
194 | } | |
195 | ||
ace40a69 RS |
196 | DEFUN ("invocation-directory", Finvocation_directory, Sinvocation_directory, |
197 | 0, 0, 0, | |
198 | "Return the directory name in which the Emacs executable was located") | |
199 | () | |
200 | { | |
201 | return Fcopy_sequence (Vinvocation_directory); | |
202 | } | |
203 | ||
f927c5ae JB |
204 | \f |
205 | #ifdef VMS | |
206 | #ifdef LINK_CRTL_SHARE | |
207 | #ifdef SHAREABLE_LIB_BUG | |
208 | extern noshare char **environ; | |
209 | #endif /* SHAREABLE_LIB_BUG */ | |
210 | #endif /* LINK_CRTL_SHARE */ | |
211 | #endif /* VMS */ | |
212 | ||
a90538cb | 213 | #ifndef ORDINARY_LINK |
efd241cc RS |
214 | /* We don't include crtbegin.o and crtend.o in the link, |
215 | so these functions and variables might be missed. | |
216 | Provide dummy definitions to avoid error. | |
217 | (We don't have any real constructors or destructors.) */ | |
218 | #ifdef __GNUC__ | |
c83a7064 | 219 | __do_global_ctors () |
efd241cc | 220 | {} |
c83a7064 RS |
221 | __do_global_ctors_aux () |
222 | {} | |
33143604 RS |
223 | __do_global_dtors () |
224 | {} | |
64c1864a RS |
225 | /* Linux has a bug in its library; avoid an error. */ |
226 | #ifndef LINUX | |
c83a7064 | 227 | char * __CTOR_LIST__[2] = { (char *) (-1), 0 }; |
64c1864a | 228 | #endif |
c83a7064 RS |
229 | char * __DTOR_LIST__[2] = { (char *) (-1), 0 }; |
230 | __main () | |
efd241cc | 231 | {} |
efd241cc | 232 | #endif /* __GNUC__ */ |
a90538cb | 233 | #endif /* ORDINARY_LINK */ |
efd241cc | 234 | |
f927c5ae JB |
235 | /* ARGSUSED */ |
236 | main (argc, argv, envp) | |
237 | int argc; | |
238 | char **argv; | |
239 | char **envp; | |
240 | { | |
241 | char stack_bottom_variable; | |
242 | int skip_args = 0; | |
243 | extern int errno; | |
244 | extern sys_nerr; | |
245 | extern char *sys_errlist[]; | |
246 | extern void malloc_warning (); | |
247 | ||
248 | /* Map in shared memory, if we are using that. */ | |
249 | #ifdef HAVE_SHM | |
250 | if (argc > 1 && !strcmp (argv[1], "-nl")) | |
251 | { | |
252 | map_in_data (0); | |
253 | /* The shared memory was just restored, which clobbered this. */ | |
254 | skip_args = 1; | |
255 | } | |
256 | else | |
257 | { | |
258 | map_in_data (1); | |
259 | /* The shared memory was just restored, which clobbered this. */ | |
260 | skip_args = 0; | |
261 | } | |
262 | #endif | |
263 | ||
19a36ec6 | 264 | #ifdef NeXT |
4b163808 | 265 | extern int malloc_cookie; |
19a36ec6 RS |
266 | |
267 | /* This helps out unexnext.c. */ | |
268 | if (initialized) | |
269 | if (malloc_jumpstart (malloc_cookie) != 0) | |
270 | printf ("malloc jumpstart failed!\n"); | |
271 | #endif /* NeXT */ | |
272 | ||
f927c5ae | 273 | #ifdef HAVE_X_WINDOWS |
fb8e9847 JB |
274 | /* Stupid kludge to catch command-line display spec. We can't |
275 | handle this argument entirely in window system dependent code | |
276 | because we don't even know which window system dependent code | |
277 | to run until we've recognized this argument. */ | |
f927c5ae JB |
278 | { |
279 | int i; | |
280 | ||
281 | for (i = 1; (i < argc && ! display_arg); i++) | |
92381c7c | 282 | if (!strcmp (argv[i], "-d") || !strcmp (argv[i], "-display")) |
f927c5ae JB |
283 | display_arg = 1; |
284 | } | |
285 | #endif | |
286 | ||
287 | #ifdef VMS | |
288 | /* If -map specified, map the data file in */ | |
289 | if (argc > 2 && ! strcmp (argv[1], "-map")) | |
290 | { | |
291 | skip_args = 2; | |
292 | mapin_data (argv[2]); | |
293 | } | |
294 | ||
295 | #ifdef LINK_CRTL_SHARE | |
296 | #ifdef SHAREABLE_LIB_BUG | |
297 | /* Bletcherous shared libraries! */ | |
298 | if (!stdin) | |
299 | stdin = fdopen (0, "r"); | |
300 | if (!stdout) | |
301 | stdout = fdopen (1, "w"); | |
302 | if (!stderr) | |
303 | stderr = fdopen (2, "w"); | |
304 | if (!environ) | |
305 | environ = envp; | |
306 | #endif /* SHAREABLE_LIB_BUG */ | |
307 | #endif /* LINK_CRTL_SHARE */ | |
308 | #endif /* VMS */ | |
309 | ||
310 | /* Record (approximately) where the stack begins. */ | |
311 | stack_bottom = &stack_bottom_variable; | |
312 | ||
313 | #ifdef RUN_TIME_REMAP | |
314 | if (initialized) | |
315 | run_time_remap (argv[0]); | |
316 | #endif | |
317 | ||
318 | #ifdef USG_SHARED_LIBRARIES | |
319 | if (bss_end) | |
320 | brk (bss_end); | |
321 | #endif | |
322 | ||
323 | clearerr (stdin); | |
9ae8f997 | 324 | |
f927c5ae | 325 | #ifdef BSD |
2144fd18 | 326 | { |
9ae8f997 | 327 | inherited_pgroup = getpgrp (0); |
9ae8f997 JB |
328 | setpgrp (0, getpid ()); |
329 | } | |
f927c5ae JB |
330 | #endif |
331 | ||
9ae8f997 | 332 | |
f927c5ae JB |
333 | #ifdef APOLLO |
334 | #ifndef APOLLO_SR10 | |
335 | /* If USE_DOMAIN_ACLS environment variable exists, | |
336 | use ACLs rather than UNIX modes. */ | |
337 | if (egetenv ("USE_DOMAIN_ACLS")) | |
338 | default_acl (USE_DEFACL); | |
339 | #endif | |
340 | #endif /* APOLLO */ | |
341 | ||
342 | #ifndef SYSTEM_MALLOC | |
343 | if (! initialized) | |
9ac0d9e0 JB |
344 | { |
345 | /* Arrange to get warning messages as memory fills up. */ | |
346 | memory_warnings (0, malloc_warning); | |
347 | ||
348 | /* Arrange to disable interrupt input while malloc and friends are | |
349 | running. */ | |
350 | uninterrupt_malloc (); | |
351 | } | |
f927c5ae JB |
352 | #endif /* not SYSTEM_MALLOC */ |
353 | ||
3005da00 RS |
354 | #ifdef PRIO_PROCESS |
355 | if (emacs_priority) | |
5aa7f46a | 356 | nice (emacs_priority); |
f927c5ae | 357 | setuid (getuid ()); |
3005da00 | 358 | #endif /* PRIO_PROCESS */ |
f927c5ae | 359 | |
f927c5ae JB |
360 | inhibit_window_system = 0; |
361 | ||
4fc0b45b | 362 | /* Handle the -t switch, which specifies filename to use as terminal */ |
f927c5ae JB |
363 | if (skip_args + 2 < argc && !strcmp (argv[skip_args + 1], "-t")) |
364 | { | |
365 | int result; | |
366 | skip_args += 2; | |
367 | close (0); | |
368 | close (1); | |
369 | result = open (argv[skip_args], O_RDWR, 2 ); | |
370 | if (result < 0) | |
371 | { | |
372 | char *errstring; | |
373 | ||
374 | if (errno >= 0 && errno < sys_nerr) | |
375 | errstring = sys_errlist[errno]; | |
376 | else | |
377 | errstring = "undocumented error code"; | |
378 | fprintf (stderr, "emacs: %s: %s\n", argv[skip_args], errstring); | |
379 | exit (1); | |
380 | } | |
381 | dup (0); | |
382 | if (! isatty (0)) | |
383 | { | |
384 | fprintf (stderr, "emacs: %s: not a tty\n", argv[skip_args]); | |
385 | exit (1); | |
386 | } | |
387 | fprintf (stderr, "Using %s\n", argv[skip_args]); | |
388 | #ifdef HAVE_X_WINDOWS | |
389 | inhibit_window_system = 1; /* -t => -nw */ | |
390 | #endif | |
391 | } | |
392 | ||
393 | if (skip_args + 1 < argc | |
394 | && (!strcmp (argv[skip_args + 1], "-nw"))) | |
395 | { | |
396 | skip_args += 1; | |
397 | inhibit_window_system = 1; | |
398 | } | |
399 | ||
400 | /* Handle the -batch switch, which means don't do interactive display. */ | |
401 | noninteractive = 0; | |
402 | if (skip_args + 1 < argc && !strcmp (argv[skip_args + 1], "-batch")) | |
403 | { | |
404 | skip_args += 1; | |
405 | noninteractive = 1; | |
406 | } | |
407 | ||
fb8e9847 JB |
408 | #ifdef POSIX_SIGNALS |
409 | init_signals (); | |
410 | #endif | |
411 | ||
f927c5ae JB |
412 | if ( |
413 | #ifndef CANNOT_DUMP | |
414 | ! noninteractive || initialized | |
415 | #else | |
416 | 1 | |
417 | #endif | |
418 | ) | |
419 | { | |
420 | /* Don't catch these signals in batch mode if not initialized. | |
421 | On some machines, this sets static data that would make | |
422 | signal fail to work right when the dumped Emacs is run. */ | |
423 | signal (SIGHUP, fatal_error_signal); | |
424 | signal (SIGQUIT, fatal_error_signal); | |
425 | signal (SIGILL, fatal_error_signal); | |
426 | signal (SIGTRAP, fatal_error_signal); | |
a90538cb JB |
427 | #ifdef SIGIOT |
428 | /* This is missing on some systems - OS/2, for example. */ | |
f927c5ae | 429 | signal (SIGIOT, fatal_error_signal); |
a90538cb | 430 | #endif |
f927c5ae JB |
431 | #ifdef SIGEMT |
432 | signal (SIGEMT, fatal_error_signal); | |
433 | #endif | |
434 | signal (SIGFPE, fatal_error_signal); | |
00eaaa32 | 435 | #ifdef SIGBUS |
f927c5ae | 436 | signal (SIGBUS, fatal_error_signal); |
00eaaa32 | 437 | #endif |
f927c5ae | 438 | signal (SIGSEGV, fatal_error_signal); |
00eaaa32 | 439 | #ifdef SIGSYS |
f927c5ae | 440 | signal (SIGSYS, fatal_error_signal); |
00eaaa32 | 441 | #endif |
f927c5ae JB |
442 | signal (SIGTERM, fatal_error_signal); |
443 | #ifdef SIGXCPU | |
444 | signal (SIGXCPU, fatal_error_signal); | |
445 | #endif | |
446 | #ifdef SIGXFSZ | |
447 | signal (SIGXFSZ, fatal_error_signal); | |
448 | #endif /* SIGXFSZ */ | |
449 | ||
450 | #ifdef AIX | |
451 | signal (SIGDANGER, fatal_error_signal); | |
452 | signal (20, fatal_error_signal); | |
453 | signal (21, fatal_error_signal); | |
454 | signal (22, fatal_error_signal); | |
455 | signal (23, fatal_error_signal); | |
456 | signal (24, fatal_error_signal); | |
bfb61299 | 457 | #ifdef SIGIO |
f927c5ae JB |
458 | signal (SIGAIO, fatal_error_signal); |
459 | signal (SIGPTY, fatal_error_signal); | |
bfb61299 | 460 | #endif |
0aef8561 | 461 | #ifndef _I386 |
f927c5ae | 462 | signal (SIGIOINT, fatal_error_signal); |
0aef8561 | 463 | #endif |
f927c5ae JB |
464 | signal (SIGGRANT, fatal_error_signal); |
465 | signal (SIGRETRACT, fatal_error_signal); | |
466 | signal (SIGSOUND, fatal_error_signal); | |
467 | signal (SIGMSG, fatal_error_signal); | |
468 | #endif /* AIX */ | |
469 | } | |
470 | ||
471 | noninteractive1 = noninteractive; | |
472 | ||
473 | /* Perform basic initializations (not merely interning symbols) */ | |
474 | ||
475 | if (!initialized) | |
476 | { | |
477 | init_alloc_once (); | |
478 | init_obarray (); | |
479 | init_eval_once (); | |
480 | init_syntax_once (); /* Create standard syntax table. */ | |
481 | /* Must be done before init_buffer */ | |
482 | init_casetab_once (); | |
483 | init_buffer_once (); /* Create buffer table and some buffers */ | |
484 | init_minibuf_once (); /* Create list of minibuffers */ | |
485 | /* Must precede init_window_once */ | |
486 | init_window_once (); /* Init the window system */ | |
487 | } | |
488 | ||
489 | init_alloc (); | |
f927c5ae JB |
490 | init_eval (); |
491 | init_data (); | |
0e956009 JB |
492 | |
493 | /* egetenv is a pretty low-level facility, which may get called in | |
494 | many circumstances; it seems flimsy to put off initializing it | |
495 | until calling init_callproc. */ | |
496 | set_process_environment (); | |
497 | ||
ace40a69 RS |
498 | init_buffer (); /* Init default directory of main buffer */ |
499 | ||
500 | init_callproc (); /* Must precede init_cmdargs and init_sys_modes. */ | |
501 | init_cmdargs (argc, argv, skip_args); /* Must precede init_lread. */ | |
fb8e9847 | 502 | init_lread (); |
f927c5ae | 503 | |
f927c5ae JB |
504 | if (!noninteractive) |
505 | { | |
506 | #ifdef VMS | |
1cbd5d9d | 507 | init_vms_input ();/* init_display calls get_frame_size, that needs this */ |
f927c5ae JB |
508 | #endif /* VMS */ |
509 | init_display (); /* Determine terminal type. init_sys_modes uses results */ | |
510 | } | |
511 | init_keyboard (); /* This too must precede init_sys_modes */ | |
f927c5ae JB |
512 | #ifdef VMS |
513 | init_vmsproc (); /* And this too. */ | |
514 | #endif /* VMS */ | |
515 | init_sys_modes (); /* Init system terminal modes (RAW or CBREAK, etc.) */ | |
516 | init_xdisp (); | |
517 | init_macros (); | |
518 | init_editfns (); | |
519 | #ifdef LISP_FLOAT_TYPE | |
520 | init_floatfns (); | |
521 | #endif | |
522 | #ifdef VMS | |
523 | init_vmsfns (); | |
524 | #endif /* VMS */ | |
f927c5ae | 525 | init_process (); |
32676c08 JB |
526 | #ifdef CLASH_DETECTION |
527 | init_filelock (); | |
528 | #endif /* CLASH_DETECTION */ | |
f927c5ae JB |
529 | |
530 | /* Intern the names of all standard functions and variables; define standard keys */ | |
531 | ||
532 | if (!initialized) | |
533 | { | |
534 | /* The basic levels of Lisp must come first */ | |
535 | /* And data must come first of all | |
536 | for the sake of symbols like error-message */ | |
537 | syms_of_data (); | |
538 | syms_of_alloc (); | |
fb8e9847 | 539 | syms_of_lread (); |
f927c5ae JB |
540 | syms_of_print (); |
541 | syms_of_eval (); | |
542 | syms_of_fns (); | |
f927c5ae | 543 | syms_of_floatfns (); |
f927c5ae JB |
544 | |
545 | syms_of_abbrev (); | |
546 | syms_of_buffer (); | |
547 | syms_of_bytecode (); | |
548 | syms_of_callint (); | |
549 | syms_of_casefiddle (); | |
550 | syms_of_casetab (); | |
551 | syms_of_callproc (); | |
552 | syms_of_cmds (); | |
553 | #ifndef NO_DIR_LIBRARY | |
554 | syms_of_dired (); | |
555 | #endif /* not NO_DIR_LIBRARY */ | |
556 | syms_of_display (); | |
557 | syms_of_doc (); | |
558 | syms_of_editfns (); | |
559 | syms_of_emacs (); | |
560 | syms_of_fileio (); | |
561 | #ifdef CLASH_DETECTION | |
562 | syms_of_filelock (); | |
563 | #endif /* CLASH_DETECTION */ | |
564 | syms_of_indent (); | |
565 | syms_of_keyboard (); | |
566 | syms_of_keymap (); | |
567 | syms_of_macros (); | |
568 | syms_of_marker (); | |
569 | syms_of_minibuf (); | |
570 | syms_of_mocklisp (); | |
f927c5ae | 571 | syms_of_process (); |
f927c5ae | 572 | syms_of_search (); |
1cbd5d9d | 573 | syms_of_frame (); |
f927c5ae JB |
574 | syms_of_syntax (); |
575 | syms_of_undo (); | |
bef79ee4 JA |
576 | |
577 | /* Only defined if Emacs is compiled with USE_TEXT_PROPERTIES */ | |
578 | syms_of_textprop (); | |
f927c5ae JB |
579 | #ifdef VMS |
580 | syms_of_vmsproc (); | |
581 | #endif /* VMS */ | |
582 | syms_of_window (); | |
583 | syms_of_xdisp (); | |
584 | #ifdef HAVE_X_WINDOWS | |
72412588 | 585 | syms_of_xterm (); |
f927c5ae | 586 | syms_of_xfns (); |
9c3f23b7 | 587 | syms_of_xfaces (); |
72412588 JB |
588 | #ifdef HAVE_X11 |
589 | syms_of_xselect (); | |
590 | #endif | |
dbc4e1c1 | 591 | #ifdef HAVE_X_MENU |
f927c5ae JB |
592 | syms_of_xmenu (); |
593 | #endif /* HAVE_X_MENU */ | |
594 | #endif /* HAVE_X_WINDOWS */ | |
595 | ||
596 | #ifdef SYMS_SYSTEM | |
597 | SYMS_SYSTEM; | |
598 | #endif | |
599 | ||
600 | #ifdef SYMS_MACHINE | |
601 | SYMS_MACHINE; | |
602 | #endif | |
603 | ||
604 | keys_of_casefiddle (); | |
605 | keys_of_cmds (); | |
606 | keys_of_buffer (); | |
607 | keys_of_keyboard (); | |
608 | keys_of_keymap (); | |
609 | keys_of_macros (); | |
610 | keys_of_minibuf (); | |
611 | keys_of_window (); | |
5e67fbc2 | 612 | keys_of_frame (); |
f927c5ae JB |
613 | } |
614 | ||
615 | if (!initialized) | |
616 | { | |
617 | /* Handle -l loadup-and-dump, args passed by Makefile. */ | |
618 | if (argc > 2 + skip_args && !strcmp (argv[1 + skip_args], "-l")) | |
619 | Vtop_level = Fcons (intern ("load"), | |
620 | Fcons (build_string (argv[2 + skip_args]), Qnil)); | |
621 | #ifdef CANNOT_DUMP | |
622 | /* Unless next switch is -nl, load "loadup.el" first thing. */ | |
623 | if (!(argc > 1 + skip_args && !strcmp (argv[1 + skip_args], "-nl"))) | |
624 | Vtop_level = Fcons (intern ("load"), | |
625 | Fcons (build_string ("loadup.el"), Qnil)); | |
626 | #endif /* CANNOT_DUMP */ | |
627 | } | |
628 | ||
629 | initialized = 1; | |
630 | ||
afe9fae9 RS |
631 | #if defined (sun) || defined (LOCALTIME_CACHE) |
632 | /* sun's localtime has a bug. it caches the value of the time | |
279cc2b8 JB |
633 | zone rather than looking it up every time. Since localtime() is |
634 | called to bolt the undumping time into the undumped emacs, this | |
afe9fae9 RS |
635 | results in localtime ignoring the TZ environment variable. |
636 | This flushes the new TZ value into localtime. */ | |
637 | tzset (); | |
638 | #endif /* defined (sun) || defined (LOCALTIME_CACHE) */ | |
279cc2b8 | 639 | |
f927c5ae JB |
640 | /* Enter editor command loop. This never returns. */ |
641 | Frecursive_edit (); | |
642 | /* NOTREACHED */ | |
643 | } | |
644 | \f | |
645 | DEFUN ("kill-emacs", Fkill_emacs, Skill_emacs, 0, 1, "P", | |
edc8ae07 | 646 | "Exit the Emacs job and kill it.\n\ |
f927c5ae JB |
647 | If ARG is an integer, return ARG as the exit program code.\n\ |
648 | If ARG is a string, stuff it as keyboard input.\n\n\ | |
649 | The value of `kill-emacs-hook', if not void,\n\ | |
650 | is a list of functions (of no args),\n\ | |
651 | all of which are called before Emacs is actually killed.") | |
652 | (arg) | |
653 | Lisp_Object arg; | |
654 | { | |
655 | Lisp_Object hook, hook1; | |
656 | int i; | |
657 | struct gcpro gcpro1; | |
658 | ||
659 | GCPRO1 (arg); | |
660 | ||
661 | if (feof (stdin)) | |
662 | arg = Qt; | |
663 | ||
2447c626 | 664 | if (!NILP (Vrun_hooks) && !noninteractive) |
f927c5ae JB |
665 | call1 (Vrun_hooks, intern ("kill-emacs-hook")); |
666 | ||
f927c5ae JB |
667 | UNGCPRO; |
668 | ||
669 | /* Is it really necessary to do this deassign | |
670 | when we are going to exit anyway? */ | |
671 | /* #ifdef VMS | |
672 | stop_vms_input (); | |
673 | #endif */ | |
40be253a | 674 | |
d0068e25 | 675 | shut_down_emacs (0, 0, STRINGP (arg) ? arg : Qnil); |
40be253a | 676 | |
f927c5ae JB |
677 | exit ((XTYPE (arg) == Lisp_Int) ? XINT (arg) |
678 | #ifdef VMS | |
679 | : 1 | |
680 | #else | |
681 | : 0 | |
682 | #endif | |
683 | ); | |
684 | /* NOTREACHED */ | |
685 | } | |
40be253a JB |
686 | |
687 | ||
688 | /* Perform an orderly shutdown of Emacs. Autosave any modified | |
689 | buffers, kill any child processes, clean up the terminal modes (if | |
690 | we're in the foreground), and other stuff like that. Don't perform | |
691 | any redisplay; this may be called when Emacs is shutting down in | |
692 | the background, or after its X connection has died. | |
693 | ||
694 | If SIG is a signal number, print a message for it. | |
695 | ||
696 | This is called by fatal signal handlers, X protocol error handlers, | |
697 | and Fkill_emacs. */ | |
f7ab4e3d | 698 | |
40be253a | 699 | void |
f7ab4e3d | 700 | shut_down_emacs (sig, no_x, stuff) |
41423a80 | 701 | int sig, no_x; |
f7ab4e3d | 702 | Lisp_Object stuff; |
40be253a JB |
703 | { |
704 | /* If we are controlling the terminal, reset terminal modes */ | |
705 | #ifdef EMACS_HAVE_TTY_PGRP | |
706 | { | |
5a570e37 JB |
707 | #ifdef USG |
708 | int pgrp = getpgrp (); | |
709 | #else | |
710 | int pgrp = getpgrp (0); | |
711 | #endif | |
40be253a JB |
712 | int tpgrp; |
713 | if (EMACS_GET_TTY_PGRP (0, &tpgrp) != -1 | |
5a570e37 | 714 | && tpgrp == pgrp) |
40be253a JB |
715 | { |
716 | fflush (stdout); | |
717 | reset_sys_modes (); | |
718 | if (sig && sig != SIGTERM) | |
719 | fprintf (stderr, "Fatal error (%d).", sig); | |
720 | } | |
721 | } | |
722 | #else | |
723 | fflush (stdout); | |
724 | reset_sys_modes (); | |
725 | #endif | |
726 | ||
f7ab4e3d RS |
727 | stuff_buffered_input (stuff); |
728 | ||
40be253a JB |
729 | kill_buffer_processes (Qnil); |
730 | Fdo_auto_save (Qt, Qnil); | |
731 | ||
732 | #ifdef CLASH_DETECTION | |
733 | unlock_all_files (); | |
734 | #endif | |
735 | ||
736 | #ifdef VMS | |
737 | kill_vms_processes (); | |
738 | #endif | |
739 | ||
41423a80 RS |
740 | #ifdef HAVE_X_WINDOWS |
741 | if (!noninteractive && EQ (Vwindow_system, intern ("x")) && ! no_x) | |
742 | Fx_close_current_connection (); | |
743 | #endif /* HAVE_X_WINDOWS */ | |
744 | ||
40be253a JB |
745 | #ifdef SIGIO |
746 | /* There is a tendency for a SIGIO signal to arrive within exit, | |
747 | and cause a SIGHUP because the input descriptor is already closed. */ | |
748 | unrequest_sigio (); | |
749 | signal (SIGIO, SIG_IGN); | |
750 | #endif | |
751 | } | |
752 | ||
753 | ||
f927c5ae JB |
754 | \f |
755 | #ifndef CANNOT_DUMP | |
756 | /* Nothing like this can be implemented on an Apollo. | |
757 | What a loss! */ | |
758 | ||
759 | #ifdef HAVE_SHM | |
760 | ||
761 | DEFUN ("dump-emacs-data", Fdump_emacs_data, Sdump_emacs_data, 1, 1, 0, | |
762 | "Dump current state of Emacs into data file FILENAME.\n\ | |
763 | This function exists on systems that use HAVE_SHM.") | |
764 | (intoname) | |
765 | Lisp_Object intoname; | |
766 | { | |
767 | extern int my_edata; | |
768 | Lisp_Object tem; | |
769 | extern void malloc_warning (); | |
770 | ||
771 | CHECK_STRING (intoname, 0); | |
772 | intoname = Fexpand_file_name (intoname, Qnil); | |
773 | ||
774 | tem = Vpurify_flag; | |
775 | Vpurify_flag = Qnil; | |
776 | ||
777 | fflush (stdout); | |
778 | /* Tell malloc where start of impure now is */ | |
779 | /* Also arrange for warnings when nearly out of space. */ | |
780 | #ifndef SYSTEM_MALLOC | |
70eb2c3e | 781 | memory_warnings (&my_edata, malloc_warning); |
f927c5ae JB |
782 | #endif |
783 | map_out_data (XSTRING (intoname)->data); | |
784 | ||
785 | Vpurify_flag = tem; | |
786 | ||
787 | return Qnil; | |
788 | } | |
789 | ||
790 | #else /* not HAVE_SHM */ | |
791 | ||
792 | DEFUN ("dump-emacs", Fdump_emacs, Sdump_emacs, 2, 2, 0, | |
793 | "Dump current state of Emacs into executable file FILENAME.\n\ | |
794 | Take symbols from SYMFILE (presumably the file you executed to run Emacs).\n\ | |
795 | This is used in the file `loadup.el' when building Emacs.\n\ | |
796 | \n\ | |
797 | Bind `command-line-processed' to nil before dumping,\n\ | |
798 | if you want the dumped Emacs to process its command line\n\ | |
799 | and announce itself normally when it is run.") | |
800 | (intoname, symname) | |
801 | Lisp_Object intoname, symname; | |
802 | { | |
803 | extern int my_edata; | |
804 | Lisp_Object tem; | |
805 | extern void malloc_warning (); | |
806 | ||
807 | CHECK_STRING (intoname, 0); | |
808 | intoname = Fexpand_file_name (intoname, Qnil); | |
2447c626 | 809 | if (!NILP (symname)) |
f927c5ae JB |
810 | { |
811 | CHECK_STRING (symname, 0); | |
812 | if (XSTRING (symname)->size) | |
813 | symname = Fexpand_file_name (symname, Qnil); | |
814 | } | |
815 | ||
816 | tem = Vpurify_flag; | |
817 | Vpurify_flag = Qnil; | |
818 | ||
819 | fflush (stdout); | |
820 | #ifdef VMS | |
821 | mapout_data (XSTRING (intoname)->data); | |
822 | #else | |
823 | /* Tell malloc where start of impure now is */ | |
824 | /* Also arrange for warnings when nearly out of space. */ | |
825 | #ifndef SYSTEM_MALLOC | |
70eb2c3e | 826 | memory_warnings (&my_edata, malloc_warning); |
f927c5ae JB |
827 | #endif |
828 | unexec (XSTRING (intoname)->data, | |
2447c626 | 829 | !NILP (symname) ? XSTRING (symname)->data : 0, &my_edata, 0, 0); |
f927c5ae JB |
830 | #endif /* not VMS */ |
831 | ||
832 | Vpurify_flag = tem; | |
833 | ||
834 | return Qnil; | |
835 | } | |
836 | ||
837 | #endif /* not HAVE_SHM */ | |
838 | ||
839 | #endif /* not CANNOT_DUMP */ | |
840 | \f | |
4b163808 | 841 | #ifndef SEPCHAR |
f927c5ae JB |
842 | #define SEPCHAR ':' |
843 | #endif | |
844 | ||
845 | Lisp_Object | |
846 | decode_env_path (evarname, defalt) | |
847 | char *evarname, *defalt; | |
848 | { | |
849 | register char *path, *p; | |
850 | extern char *index (); | |
851 | ||
852 | Lisp_Object lpath; | |
853 | ||
2447c626 JB |
854 | /* It's okay to use getenv here, because this function is only used |
855 | to initialize variables when Emacs starts up, and isn't called | |
856 | after that. */ | |
e065a56e JB |
857 | if (evarname != 0) |
858 | path = (char *) getenv (evarname); | |
859 | else | |
860 | path = 0; | |
f927c5ae JB |
861 | if (!path) |
862 | path = defalt; | |
863 | lpath = Qnil; | |
864 | while (1) | |
865 | { | |
866 | p = index (path, SEPCHAR); | |
867 | if (!p) p = path + strlen (path); | |
868 | lpath = Fcons (p - path ? make_string (path, p - path) : Qnil, | |
869 | lpath); | |
870 | if (*p) | |
871 | path = p + 1; | |
872 | else | |
873 | break; | |
874 | } | |
875 | return Fnreverse (lpath); | |
876 | } | |
877 | ||
878 | syms_of_emacs () | |
879 | { | |
83591e66 | 880 | #ifndef CANNOT_DUMP |
f927c5ae JB |
881 | #ifdef HAVE_SHM |
882 | defsubr (&Sdump_emacs_data); | |
883 | #else | |
884 | defsubr (&Sdump_emacs); | |
83591e66 | 885 | #endif |
f927c5ae JB |
886 | #endif |
887 | ||
888 | defsubr (&Skill_emacs); | |
889 | ||
59653951 | 890 | defsubr (&Sinvocation_name); |
ace40a69 | 891 | defsubr (&Sinvocation_directory); |
59653951 | 892 | |
f927c5ae JB |
893 | DEFVAR_LISP ("command-line-args", &Vcommand_line_args, |
894 | "Args passed by shell to Emacs, as a list of strings."); | |
895 | ||
896 | DEFVAR_LISP ("system-type", &Vsystem_type, | |
897 | "Value is symbol indicating type of operating system you are using."); | |
898 | Vsystem_type = intern (SYSTEM_TYPE); | |
899 | ||
900 | DEFVAR_BOOL ("noninteractive", &noninteractive1, | |
901 | "Non-nil means Emacs is running without interactive terminal."); | |
e5d77022 | 902 | |
e5d77022 | 903 | DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook, |
edc8ae07 JB |
904 | "Hook to be run whenever kill-emacs is called.\n\ |
905 | Since kill-emacs may be invoked when the terminal is disconnected (or\n\ | |
906 | in other similar situations), functions placed on this hook should not\n\ | |
679aee02 | 907 | expect to be able to interact with the user."); |
edc8ae07 | 908 | Vkill_emacs_hook = Qnil; |
3005da00 RS |
909 | |
910 | DEFVAR_INT ("emacs-priority", &emacs_priority, | |
911 | "Priority for Emacs to run at.\n\ | |
912 | This value is effective only if set before Emacs is dumped,\n\ | |
913 | and only if the Emacs executable is installed with setuid to permit\n\ | |
914 | it to change priority. (Emacs sets its uid back to the real uid.)"); | |
915 | emacs_priority = 0; | |
59653951 JB |
916 | |
917 | staticpro (&Vinvocation_name); | |
918 | Vinvocation_name = Qnil; | |
ace40a69 RS |
919 | staticpro (&Vinvocation_directory); |
920 | Vinvocation_directory = Qnil; | |
f927c5ae | 921 | } |