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" |
a41f8bed | 50 | |
f927c5ae JB |
51 | #ifndef O_RDWR |
52 | #define O_RDWR 2 | |
53 | #endif | |
54 | ||
55 | #define PRIO_PROCESS 0 | |
56 | ||
57 | /* Command line args from shell, as list of strings */ | |
58 | Lisp_Object Vcommand_line_args; | |
59 | ||
59653951 JB |
60 | /* The name under which Emacs was invoked, with any leading directory |
61 | names discarded. */ | |
62 | Lisp_Object Vinvocation_name; | |
63 | ||
e5d77022 JB |
64 | /* Hook run by `kill-emacs' before it does really anything. */ |
65 | Lisp_Object Vkill_emacs_hook; | |
66 | ||
f927c5ae JB |
67 | /* Set nonzero after Emacs has started up the first time. |
68 | Prevents reinitialization of the Lisp world and keymaps | |
69 | on subsequent starts. */ | |
70 | int initialized; | |
71 | ||
72 | /* Variable whose value is symbol giving operating system type */ | |
73 | Lisp_Object Vsystem_type; | |
74 | ||
75 | /* If non-zero, emacs should not attempt to use an window-specific code, | |
76 | but instead should use the virtual terminal under which it was started */ | |
77 | int inhibit_window_system; | |
78 | ||
5aa7f46a JB |
79 | /* If nonzero, set Emacs to run at this priority. This is also used |
80 | in child_setup and sys_suspend to make sure subshells run at normal | |
81 | priority; Those functions have their own extern declaration. */ | |
3005da00 RS |
82 | int emacs_priority; |
83 | ||
9ae8f997 JB |
84 | #ifdef BSD |
85 | /* See sysdep.c. */ | |
86 | extern int inherited_pgroup; | |
87 | #endif | |
88 | ||
f927c5ae JB |
89 | #ifdef HAVE_X_WINDOWS |
90 | /* If non-zero, -d was specified, meaning we're using some window system. */ | |
91 | int display_arg; | |
92 | #endif | |
93 | ||
94 | /* An address near the bottom of the stack. | |
95 | Tells GC how to save a copy of the stack. */ | |
96 | char *stack_bottom; | |
97 | ||
98 | #ifdef HAVE_X_WINDOWS | |
99 | extern Lisp_Object Vwindow_system; | |
100 | #endif /* HAVE_X_WINDOWS */ | |
101 | ||
102 | #ifdef USG_SHARED_LIBRARIES | |
103 | /* If nonzero, this is the place to put the end of the writable segment | |
104 | at startup. */ | |
105 | ||
106 | unsigned int bss_end = 0; | |
107 | #endif | |
108 | ||
109 | /* Nonzero means running Emacs without interactive terminal. */ | |
110 | ||
111 | int noninteractive; | |
112 | ||
113 | /* Value of Lisp variable `noninteractive'. | |
114 | Normally same as C variable `noninteractive' | |
115 | but nothing terrible happens if user sets this one. */ | |
116 | ||
117 | int noninteractive1; | |
118 | \f | |
119 | /* Signal code for the fatal signal that was received */ | |
120 | int fatal_error_code; | |
121 | ||
122 | /* Nonzero if handling a fatal error already */ | |
123 | int fatal_error_in_progress; | |
124 | ||
125 | /* Handle bus errors, illegal instruction, etc. */ | |
2447c626 | 126 | SIGTYPE |
f927c5ae JB |
127 | fatal_error_signal (sig) |
128 | int sig; | |
129 | { | |
f927c5ae JB |
130 | fatal_error_code = sig; |
131 | signal (sig, SIG_DFL); | |
132 | ||
133 | /* If fatal error occurs in code below, avoid infinite recursion. */ | |
8090eb09 JB |
134 | if (! fatal_error_in_progress) |
135 | { | |
136 | fatal_error_in_progress = 1; | |
f927c5ae | 137 | |
f7ab4e3d | 138 | shut_down_emacs (sig, 0, Qnil); |
8090eb09 | 139 | } |
f927c5ae JB |
140 | |
141 | #ifdef VMS | |
f927c5ae JB |
142 | LIB$STOP (SS$_ABORT); |
143 | #else | |
8090eb09 JB |
144 | /* Signal the same code; this time it will really be fatal. |
145 | Remember that since we're in a signal handler, the signal we're | |
146 | going to send is probably blocked, so we have to unblock it if we | |
147 | want to really receive it. */ | |
a90538cb | 148 | sigunblock (sigmask (fatal_error_code)); |
f927c5ae JB |
149 | kill (getpid (), fatal_error_code); |
150 | #endif /* not VMS */ | |
151 | } | |
152 | \f | |
153 | /* Code for dealing with Lisp access to the Unix command line */ | |
154 | ||
155 | static | |
156 | init_cmdargs (argc, argv, skip_args) | |
157 | int argc; | |
158 | char **argv; | |
159 | int skip_args; | |
160 | { | |
161 | register int i; | |
162 | ||
cb421be8 | 163 | Vinvocation_name = Ffile_name_nondirectory (build_string (argv[0])); |
59653951 | 164 | |
f927c5ae JB |
165 | Vcommand_line_args = Qnil; |
166 | ||
167 | for (i = argc - 1; i >= 0; i--) | |
168 | { | |
169 | if (i == 0 || i > skip_args) | |
170 | Vcommand_line_args | |
171 | = Fcons (build_string (argv[i]), Vcommand_line_args); | |
172 | } | |
173 | } | |
59653951 JB |
174 | |
175 | DEFUN ("invocation-name", Finvocation_name, Sinvocation_name, 0, 0, 0, | |
176 | "Return the program name that was used to run Emacs.\n\ | |
177 | Any directory names are omitted.") | |
178 | () | |
179 | { | |
180 | return Fcopy_sequence (Vinvocation_name); | |
181 | } | |
182 | ||
f927c5ae JB |
183 | \f |
184 | #ifdef VMS | |
185 | #ifdef LINK_CRTL_SHARE | |
186 | #ifdef SHAREABLE_LIB_BUG | |
187 | extern noshare char **environ; | |
188 | #endif /* SHAREABLE_LIB_BUG */ | |
189 | #endif /* LINK_CRTL_SHARE */ | |
190 | #endif /* VMS */ | |
191 | ||
a90538cb | 192 | #ifndef ORDINARY_LINK |
efd241cc RS |
193 | /* We don't include crtbegin.o and crtend.o in the link, |
194 | so these functions and variables might be missed. | |
195 | Provide dummy definitions to avoid error. | |
196 | (We don't have any real constructors or destructors.) */ | |
197 | #ifdef __GNUC__ | |
c83a7064 | 198 | __do_global_ctors () |
efd241cc | 199 | {} |
c83a7064 RS |
200 | __do_global_ctors_aux () |
201 | {} | |
33143604 RS |
202 | __do_global_dtors () |
203 | {} | |
c83a7064 RS |
204 | char * __CTOR_LIST__[2] = { (char *) (-1), 0 }; |
205 | char * __DTOR_LIST__[2] = { (char *) (-1), 0 }; | |
206 | __main () | |
efd241cc | 207 | {} |
efd241cc | 208 | #endif /* __GNUC__ */ |
a90538cb | 209 | #endif /* ORDINARY_LINK */ |
efd241cc | 210 | |
f927c5ae JB |
211 | /* ARGSUSED */ |
212 | main (argc, argv, envp) | |
213 | int argc; | |
214 | char **argv; | |
215 | char **envp; | |
216 | { | |
217 | char stack_bottom_variable; | |
218 | int skip_args = 0; | |
219 | extern int errno; | |
220 | extern sys_nerr; | |
221 | extern char *sys_errlist[]; | |
222 | extern void malloc_warning (); | |
223 | ||
224 | /* Map in shared memory, if we are using that. */ | |
225 | #ifdef HAVE_SHM | |
226 | if (argc > 1 && !strcmp (argv[1], "-nl")) | |
227 | { | |
228 | map_in_data (0); | |
229 | /* The shared memory was just restored, which clobbered this. */ | |
230 | skip_args = 1; | |
231 | } | |
232 | else | |
233 | { | |
234 | map_in_data (1); | |
235 | /* The shared memory was just restored, which clobbered this. */ | |
236 | skip_args = 0; | |
237 | } | |
238 | #endif | |
239 | ||
19a36ec6 | 240 | #ifdef NeXT |
4b163808 | 241 | extern int malloc_cookie; |
19a36ec6 RS |
242 | |
243 | /* This helps out unexnext.c. */ | |
244 | if (initialized) | |
245 | if (malloc_jumpstart (malloc_cookie) != 0) | |
246 | printf ("malloc jumpstart failed!\n"); | |
247 | #endif /* NeXT */ | |
248 | ||
f927c5ae | 249 | #ifdef HAVE_X_WINDOWS |
fb8e9847 JB |
250 | /* Stupid kludge to catch command-line display spec. We can't |
251 | handle this argument entirely in window system dependent code | |
252 | because we don't even know which window system dependent code | |
253 | to run until we've recognized this argument. */ | |
f927c5ae JB |
254 | { |
255 | int i; | |
256 | ||
257 | for (i = 1; (i < argc && ! display_arg); i++) | |
92381c7c | 258 | if (!strcmp (argv[i], "-d") || !strcmp (argv[i], "-display")) |
f927c5ae JB |
259 | display_arg = 1; |
260 | } | |
261 | #endif | |
262 | ||
263 | #ifdef VMS | |
264 | /* If -map specified, map the data file in */ | |
265 | if (argc > 2 && ! strcmp (argv[1], "-map")) | |
266 | { | |
267 | skip_args = 2; | |
268 | mapin_data (argv[2]); | |
269 | } | |
270 | ||
271 | #ifdef LINK_CRTL_SHARE | |
272 | #ifdef SHAREABLE_LIB_BUG | |
273 | /* Bletcherous shared libraries! */ | |
274 | if (!stdin) | |
275 | stdin = fdopen (0, "r"); | |
276 | if (!stdout) | |
277 | stdout = fdopen (1, "w"); | |
278 | if (!stderr) | |
279 | stderr = fdopen (2, "w"); | |
280 | if (!environ) | |
281 | environ = envp; | |
282 | #endif /* SHAREABLE_LIB_BUG */ | |
283 | #endif /* LINK_CRTL_SHARE */ | |
284 | #endif /* VMS */ | |
285 | ||
286 | /* Record (approximately) where the stack begins. */ | |
287 | stack_bottom = &stack_bottom_variable; | |
288 | ||
289 | #ifdef RUN_TIME_REMAP | |
290 | if (initialized) | |
291 | run_time_remap (argv[0]); | |
292 | #endif | |
293 | ||
294 | #ifdef USG_SHARED_LIBRARIES | |
295 | if (bss_end) | |
296 | brk (bss_end); | |
297 | #endif | |
298 | ||
299 | clearerr (stdin); | |
9ae8f997 | 300 | |
f927c5ae | 301 | #ifdef BSD |
2144fd18 | 302 | { |
9ae8f997 | 303 | inherited_pgroup = getpgrp (0); |
9ae8f997 JB |
304 | setpgrp (0, getpid ()); |
305 | } | |
f927c5ae JB |
306 | #endif |
307 | ||
9ae8f997 | 308 | |
f927c5ae JB |
309 | #ifdef APOLLO |
310 | #ifndef APOLLO_SR10 | |
311 | /* If USE_DOMAIN_ACLS environment variable exists, | |
312 | use ACLs rather than UNIX modes. */ | |
313 | if (egetenv ("USE_DOMAIN_ACLS")) | |
314 | default_acl (USE_DEFACL); | |
315 | #endif | |
316 | #endif /* APOLLO */ | |
317 | ||
318 | #ifndef SYSTEM_MALLOC | |
319 | if (! initialized) | |
9ac0d9e0 JB |
320 | { |
321 | /* Arrange to get warning messages as memory fills up. */ | |
322 | memory_warnings (0, malloc_warning); | |
323 | ||
324 | /* Arrange to disable interrupt input while malloc and friends are | |
325 | running. */ | |
326 | uninterrupt_malloc (); | |
327 | } | |
f927c5ae JB |
328 | #endif /* not SYSTEM_MALLOC */ |
329 | ||
3005da00 RS |
330 | #ifdef PRIO_PROCESS |
331 | if (emacs_priority) | |
5aa7f46a | 332 | nice (emacs_priority); |
f927c5ae | 333 | setuid (getuid ()); |
3005da00 | 334 | #endif /* PRIO_PROCESS */ |
f927c5ae | 335 | |
f927c5ae JB |
336 | inhibit_window_system = 0; |
337 | ||
4fc0b45b | 338 | /* Handle the -t switch, which specifies filename to use as terminal */ |
f927c5ae JB |
339 | if (skip_args + 2 < argc && !strcmp (argv[skip_args + 1], "-t")) |
340 | { | |
341 | int result; | |
342 | skip_args += 2; | |
343 | close (0); | |
344 | close (1); | |
345 | result = open (argv[skip_args], O_RDWR, 2 ); | |
346 | if (result < 0) | |
347 | { | |
348 | char *errstring; | |
349 | ||
350 | if (errno >= 0 && errno < sys_nerr) | |
351 | errstring = sys_errlist[errno]; | |
352 | else | |
353 | errstring = "undocumented error code"; | |
354 | fprintf (stderr, "emacs: %s: %s\n", argv[skip_args], errstring); | |
355 | exit (1); | |
356 | } | |
357 | dup (0); | |
358 | if (! isatty (0)) | |
359 | { | |
360 | fprintf (stderr, "emacs: %s: not a tty\n", argv[skip_args]); | |
361 | exit (1); | |
362 | } | |
363 | fprintf (stderr, "Using %s\n", argv[skip_args]); | |
364 | #ifdef HAVE_X_WINDOWS | |
365 | inhibit_window_system = 1; /* -t => -nw */ | |
366 | #endif | |
367 | } | |
368 | ||
369 | if (skip_args + 1 < argc | |
370 | && (!strcmp (argv[skip_args + 1], "-nw"))) | |
371 | { | |
372 | skip_args += 1; | |
373 | inhibit_window_system = 1; | |
374 | } | |
375 | ||
376 | /* Handle the -batch switch, which means don't do interactive display. */ | |
377 | noninteractive = 0; | |
378 | if (skip_args + 1 < argc && !strcmp (argv[skip_args + 1], "-batch")) | |
379 | { | |
380 | skip_args += 1; | |
381 | noninteractive = 1; | |
382 | } | |
383 | ||
fb8e9847 JB |
384 | #ifdef POSIX_SIGNALS |
385 | init_signals (); | |
386 | #endif | |
387 | ||
f927c5ae JB |
388 | if ( |
389 | #ifndef CANNOT_DUMP | |
390 | ! noninteractive || initialized | |
391 | #else | |
392 | 1 | |
393 | #endif | |
394 | ) | |
395 | { | |
396 | /* Don't catch these signals in batch mode if not initialized. | |
397 | On some machines, this sets static data that would make | |
398 | signal fail to work right when the dumped Emacs is run. */ | |
399 | signal (SIGHUP, fatal_error_signal); | |
400 | signal (SIGQUIT, fatal_error_signal); | |
401 | signal (SIGILL, fatal_error_signal); | |
402 | signal (SIGTRAP, fatal_error_signal); | |
a90538cb JB |
403 | #ifdef SIGIOT |
404 | /* This is missing on some systems - OS/2, for example. */ | |
f927c5ae | 405 | signal (SIGIOT, fatal_error_signal); |
a90538cb | 406 | #endif |
f927c5ae JB |
407 | #ifdef SIGEMT |
408 | signal (SIGEMT, fatal_error_signal); | |
409 | #endif | |
410 | signal (SIGFPE, fatal_error_signal); | |
00eaaa32 | 411 | #ifdef SIGBUS |
f927c5ae | 412 | signal (SIGBUS, fatal_error_signal); |
00eaaa32 | 413 | #endif |
f927c5ae | 414 | signal (SIGSEGV, fatal_error_signal); |
00eaaa32 | 415 | #ifdef SIGSYS |
f927c5ae | 416 | signal (SIGSYS, fatal_error_signal); |
00eaaa32 | 417 | #endif |
f927c5ae JB |
418 | signal (SIGTERM, fatal_error_signal); |
419 | #ifdef SIGXCPU | |
420 | signal (SIGXCPU, fatal_error_signal); | |
421 | #endif | |
422 | #ifdef SIGXFSZ | |
423 | signal (SIGXFSZ, fatal_error_signal); | |
424 | #endif /* SIGXFSZ */ | |
425 | ||
426 | #ifdef AIX | |
427 | signal (SIGDANGER, fatal_error_signal); | |
428 | signal (20, fatal_error_signal); | |
429 | signal (21, fatal_error_signal); | |
430 | signal (22, fatal_error_signal); | |
431 | signal (23, fatal_error_signal); | |
432 | signal (24, fatal_error_signal); | |
bfb61299 | 433 | #ifdef SIGIO |
f927c5ae JB |
434 | signal (SIGAIO, fatal_error_signal); |
435 | signal (SIGPTY, fatal_error_signal); | |
bfb61299 | 436 | #endif |
0aef8561 | 437 | #ifndef _I386 |
f927c5ae | 438 | signal (SIGIOINT, fatal_error_signal); |
0aef8561 | 439 | #endif |
f927c5ae JB |
440 | signal (SIGGRANT, fatal_error_signal); |
441 | signal (SIGRETRACT, fatal_error_signal); | |
442 | signal (SIGSOUND, fatal_error_signal); | |
443 | signal (SIGMSG, fatal_error_signal); | |
444 | #endif /* AIX */ | |
445 | } | |
446 | ||
447 | noninteractive1 = noninteractive; | |
448 | ||
449 | /* Perform basic initializations (not merely interning symbols) */ | |
450 | ||
451 | if (!initialized) | |
452 | { | |
453 | init_alloc_once (); | |
454 | init_obarray (); | |
455 | init_eval_once (); | |
456 | init_syntax_once (); /* Create standard syntax table. */ | |
457 | /* Must be done before init_buffer */ | |
458 | init_casetab_once (); | |
459 | init_buffer_once (); /* Create buffer table and some buffers */ | |
460 | init_minibuf_once (); /* Create list of minibuffers */ | |
461 | /* Must precede init_window_once */ | |
462 | init_window_once (); /* Init the window system */ | |
463 | } | |
464 | ||
465 | init_alloc (); | |
f927c5ae JB |
466 | init_eval (); |
467 | init_data (); | |
0e956009 JB |
468 | |
469 | /* egetenv is a pretty low-level facility, which may get called in | |
470 | many circumstances; it seems flimsy to put off initializing it | |
471 | until calling init_callproc. */ | |
472 | set_process_environment (); | |
473 | ||
fb8e9847 | 474 | init_lread (); |
f927c5ae JB |
475 | |
476 | init_cmdargs (argc, argv, skip_args); /* Create list Vcommand_line_args */ | |
477 | init_buffer (); /* Init default directory of main buffer */ | |
478 | if (!noninteractive) | |
479 | { | |
480 | #ifdef VMS | |
1cbd5d9d | 481 | init_vms_input ();/* init_display calls get_frame_size, that needs this */ |
f927c5ae JB |
482 | #endif /* VMS */ |
483 | init_display (); /* Determine terminal type. init_sys_modes uses results */ | |
484 | } | |
485 | init_keyboard (); /* This too must precede init_sys_modes */ | |
486 | init_callproc (); /* And this too. */ | |
487 | #ifdef VMS | |
488 | init_vmsproc (); /* And this too. */ | |
489 | #endif /* VMS */ | |
490 | init_sys_modes (); /* Init system terminal modes (RAW or CBREAK, etc.) */ | |
491 | init_xdisp (); | |
492 | init_macros (); | |
493 | init_editfns (); | |
494 | #ifdef LISP_FLOAT_TYPE | |
495 | init_floatfns (); | |
496 | #endif | |
497 | #ifdef VMS | |
498 | init_vmsfns (); | |
499 | #endif /* VMS */ | |
f927c5ae | 500 | init_process (); |
32676c08 JB |
501 | #ifdef CLASH_DETECTION |
502 | init_filelock (); | |
503 | #endif /* CLASH_DETECTION */ | |
f927c5ae JB |
504 | |
505 | /* Intern the names of all standard functions and variables; define standard keys */ | |
506 | ||
507 | if (!initialized) | |
508 | { | |
509 | /* The basic levels of Lisp must come first */ | |
510 | /* And data must come first of all | |
511 | for the sake of symbols like error-message */ | |
512 | syms_of_data (); | |
513 | syms_of_alloc (); | |
fb8e9847 | 514 | syms_of_lread (); |
f927c5ae JB |
515 | syms_of_print (); |
516 | syms_of_eval (); | |
517 | syms_of_fns (); | |
518 | #ifdef LISP_FLOAT_TYPE | |
519 | syms_of_floatfns (); | |
520 | #endif | |
521 | ||
522 | syms_of_abbrev (); | |
523 | syms_of_buffer (); | |
524 | syms_of_bytecode (); | |
525 | syms_of_callint (); | |
526 | syms_of_casefiddle (); | |
527 | syms_of_casetab (); | |
528 | syms_of_callproc (); | |
529 | syms_of_cmds (); | |
530 | #ifndef NO_DIR_LIBRARY | |
531 | syms_of_dired (); | |
532 | #endif /* not NO_DIR_LIBRARY */ | |
533 | syms_of_display (); | |
534 | syms_of_doc (); | |
535 | syms_of_editfns (); | |
536 | syms_of_emacs (); | |
537 | syms_of_fileio (); | |
538 | #ifdef CLASH_DETECTION | |
539 | syms_of_filelock (); | |
540 | #endif /* CLASH_DETECTION */ | |
541 | syms_of_indent (); | |
542 | syms_of_keyboard (); | |
543 | syms_of_keymap (); | |
544 | syms_of_macros (); | |
545 | syms_of_marker (); | |
546 | syms_of_minibuf (); | |
547 | syms_of_mocklisp (); | |
f927c5ae | 548 | syms_of_process (); |
f927c5ae | 549 | syms_of_search (); |
1cbd5d9d | 550 | syms_of_frame (); |
f927c5ae JB |
551 | syms_of_syntax (); |
552 | syms_of_undo (); | |
bef79ee4 JA |
553 | |
554 | /* Only defined if Emacs is compiled with USE_TEXT_PROPERTIES */ | |
555 | syms_of_textprop (); | |
f927c5ae JB |
556 | #ifdef VMS |
557 | syms_of_vmsproc (); | |
558 | #endif /* VMS */ | |
559 | syms_of_window (); | |
560 | syms_of_xdisp (); | |
561 | #ifdef HAVE_X_WINDOWS | |
72412588 | 562 | syms_of_xterm (); |
f927c5ae | 563 | syms_of_xfns (); |
9c3f23b7 | 564 | syms_of_xfaces (); |
72412588 JB |
565 | #ifdef HAVE_X11 |
566 | syms_of_xselect (); | |
567 | #endif | |
dbc4e1c1 | 568 | #ifdef HAVE_X_MENU |
f927c5ae JB |
569 | syms_of_xmenu (); |
570 | #endif /* HAVE_X_MENU */ | |
571 | #endif /* HAVE_X_WINDOWS */ | |
572 | ||
573 | #ifdef SYMS_SYSTEM | |
574 | SYMS_SYSTEM; | |
575 | #endif | |
576 | ||
577 | #ifdef SYMS_MACHINE | |
578 | SYMS_MACHINE; | |
579 | #endif | |
580 | ||
581 | keys_of_casefiddle (); | |
582 | keys_of_cmds (); | |
583 | keys_of_buffer (); | |
584 | keys_of_keyboard (); | |
585 | keys_of_keymap (); | |
586 | keys_of_macros (); | |
587 | keys_of_minibuf (); | |
588 | keys_of_window (); | |
5e67fbc2 | 589 | keys_of_frame (); |
f927c5ae JB |
590 | } |
591 | ||
592 | if (!initialized) | |
593 | { | |
594 | /* Handle -l loadup-and-dump, args passed by Makefile. */ | |
595 | if (argc > 2 + skip_args && !strcmp (argv[1 + skip_args], "-l")) | |
596 | Vtop_level = Fcons (intern ("load"), | |
597 | Fcons (build_string (argv[2 + skip_args]), Qnil)); | |
598 | #ifdef CANNOT_DUMP | |
599 | /* Unless next switch is -nl, load "loadup.el" first thing. */ | |
600 | if (!(argc > 1 + skip_args && !strcmp (argv[1 + skip_args], "-nl"))) | |
601 | Vtop_level = Fcons (intern ("load"), | |
602 | Fcons (build_string ("loadup.el"), Qnil)); | |
603 | #endif /* CANNOT_DUMP */ | |
604 | } | |
605 | ||
606 | initialized = 1; | |
607 | ||
279cc2b8 JB |
608 | #ifdef sun |
609 | /* sun's localtime() has a bug. it caches the value of the time | |
610 | zone rather than looking it up every time. Since localtime() is | |
611 | called to bolt the undumping time into the undumped emacs, this | |
612 | results in localtime() ignoring the TZ environment variable. | |
613 | This flushes the new TZ value into localtime(). */ | |
614 | tzset(); | |
615 | #endif /* sun */ | |
616 | ||
f927c5ae JB |
617 | /* Enter editor command loop. This never returns. */ |
618 | Frecursive_edit (); | |
619 | /* NOTREACHED */ | |
620 | } | |
621 | \f | |
622 | DEFUN ("kill-emacs", Fkill_emacs, Skill_emacs, 0, 1, "P", | |
edc8ae07 | 623 | "Exit the Emacs job and kill it.\n\ |
f927c5ae JB |
624 | If ARG is an integer, return ARG as the exit program code.\n\ |
625 | If ARG is a string, stuff it as keyboard input.\n\n\ | |
626 | The value of `kill-emacs-hook', if not void,\n\ | |
627 | is a list of functions (of no args),\n\ | |
628 | all of which are called before Emacs is actually killed.") | |
629 | (arg) | |
630 | Lisp_Object arg; | |
631 | { | |
632 | Lisp_Object hook, hook1; | |
633 | int i; | |
634 | struct gcpro gcpro1; | |
635 | ||
636 | GCPRO1 (arg); | |
637 | ||
638 | if (feof (stdin)) | |
639 | arg = Qt; | |
640 | ||
2447c626 | 641 | if (!NILP (Vrun_hooks) && !noninteractive) |
f927c5ae JB |
642 | call1 (Vrun_hooks, intern ("kill-emacs-hook")); |
643 | ||
f927c5ae JB |
644 | UNGCPRO; |
645 | ||
646 | /* Is it really necessary to do this deassign | |
647 | when we are going to exit anyway? */ | |
648 | /* #ifdef VMS | |
649 | stop_vms_input (); | |
650 | #endif */ | |
40be253a | 651 | |
41423a80 | 652 | shut_down_emacs (0, 0); |
40be253a | 653 | |
f927c5ae JB |
654 | exit ((XTYPE (arg) == Lisp_Int) ? XINT (arg) |
655 | #ifdef VMS | |
656 | : 1 | |
657 | #else | |
658 | : 0 | |
659 | #endif | |
660 | ); | |
661 | /* NOTREACHED */ | |
662 | } | |
40be253a JB |
663 | |
664 | ||
665 | /* Perform an orderly shutdown of Emacs. Autosave any modified | |
666 | buffers, kill any child processes, clean up the terminal modes (if | |
667 | we're in the foreground), and other stuff like that. Don't perform | |
668 | any redisplay; this may be called when Emacs is shutting down in | |
669 | the background, or after its X connection has died. | |
670 | ||
671 | If SIG is a signal number, print a message for it. | |
672 | ||
673 | This is called by fatal signal handlers, X protocol error handlers, | |
674 | and Fkill_emacs. */ | |
f7ab4e3d | 675 | |
40be253a | 676 | void |
f7ab4e3d | 677 | shut_down_emacs (sig, no_x, stuff) |
41423a80 | 678 | int sig, no_x; |
f7ab4e3d | 679 | Lisp_Object stuff; |
40be253a JB |
680 | { |
681 | /* If we are controlling the terminal, reset terminal modes */ | |
682 | #ifdef EMACS_HAVE_TTY_PGRP | |
683 | { | |
5a570e37 JB |
684 | #ifdef USG |
685 | int pgrp = getpgrp (); | |
686 | #else | |
687 | int pgrp = getpgrp (0); | |
688 | #endif | |
40be253a JB |
689 | int tpgrp; |
690 | if (EMACS_GET_TTY_PGRP (0, &tpgrp) != -1 | |
5a570e37 | 691 | && tpgrp == pgrp) |
40be253a JB |
692 | { |
693 | fflush (stdout); | |
694 | reset_sys_modes (); | |
695 | if (sig && sig != SIGTERM) | |
696 | fprintf (stderr, "Fatal error (%d).", sig); | |
697 | } | |
698 | } | |
699 | #else | |
700 | fflush (stdout); | |
701 | reset_sys_modes (); | |
702 | #endif | |
703 | ||
f7ab4e3d RS |
704 | stuff_buffered_input (stuff); |
705 | ||
40be253a JB |
706 | kill_buffer_processes (Qnil); |
707 | Fdo_auto_save (Qt, Qnil); | |
708 | ||
709 | #ifdef CLASH_DETECTION | |
710 | unlock_all_files (); | |
711 | #endif | |
712 | ||
713 | #ifdef VMS | |
714 | kill_vms_processes (); | |
715 | #endif | |
716 | ||
41423a80 RS |
717 | #ifdef HAVE_X_WINDOWS |
718 | if (!noninteractive && EQ (Vwindow_system, intern ("x")) && ! no_x) | |
719 | Fx_close_current_connection (); | |
720 | #endif /* HAVE_X_WINDOWS */ | |
721 | ||
40be253a JB |
722 | #ifdef SIGIO |
723 | /* There is a tendency for a SIGIO signal to arrive within exit, | |
724 | and cause a SIGHUP because the input descriptor is already closed. */ | |
725 | unrequest_sigio (); | |
726 | signal (SIGIO, SIG_IGN); | |
727 | #endif | |
728 | } | |
729 | ||
730 | ||
f927c5ae JB |
731 | \f |
732 | #ifndef CANNOT_DUMP | |
733 | /* Nothing like this can be implemented on an Apollo. | |
734 | What a loss! */ | |
735 | ||
736 | #ifdef HAVE_SHM | |
737 | ||
738 | DEFUN ("dump-emacs-data", Fdump_emacs_data, Sdump_emacs_data, 1, 1, 0, | |
739 | "Dump current state of Emacs into data file FILENAME.\n\ | |
740 | This function exists on systems that use HAVE_SHM.") | |
741 | (intoname) | |
742 | Lisp_Object intoname; | |
743 | { | |
744 | extern int my_edata; | |
745 | Lisp_Object tem; | |
746 | extern void malloc_warning (); | |
747 | ||
748 | CHECK_STRING (intoname, 0); | |
749 | intoname = Fexpand_file_name (intoname, Qnil); | |
750 | ||
751 | tem = Vpurify_flag; | |
752 | Vpurify_flag = Qnil; | |
753 | ||
754 | fflush (stdout); | |
755 | /* Tell malloc where start of impure now is */ | |
756 | /* Also arrange for warnings when nearly out of space. */ | |
757 | #ifndef SYSTEM_MALLOC | |
70eb2c3e | 758 | memory_warnings (&my_edata, malloc_warning); |
f927c5ae JB |
759 | #endif |
760 | map_out_data (XSTRING (intoname)->data); | |
761 | ||
762 | Vpurify_flag = tem; | |
763 | ||
764 | return Qnil; | |
765 | } | |
766 | ||
767 | #else /* not HAVE_SHM */ | |
768 | ||
769 | DEFUN ("dump-emacs", Fdump_emacs, Sdump_emacs, 2, 2, 0, | |
770 | "Dump current state of Emacs into executable file FILENAME.\n\ | |
771 | Take symbols from SYMFILE (presumably the file you executed to run Emacs).\n\ | |
772 | This is used in the file `loadup.el' when building Emacs.\n\ | |
773 | \n\ | |
774 | Bind `command-line-processed' to nil before dumping,\n\ | |
775 | if you want the dumped Emacs to process its command line\n\ | |
776 | and announce itself normally when it is run.") | |
777 | (intoname, symname) | |
778 | Lisp_Object intoname, symname; | |
779 | { | |
780 | extern int my_edata; | |
781 | Lisp_Object tem; | |
782 | extern void malloc_warning (); | |
783 | ||
784 | CHECK_STRING (intoname, 0); | |
785 | intoname = Fexpand_file_name (intoname, Qnil); | |
2447c626 | 786 | if (!NILP (symname)) |
f927c5ae JB |
787 | { |
788 | CHECK_STRING (symname, 0); | |
789 | if (XSTRING (symname)->size) | |
790 | symname = Fexpand_file_name (symname, Qnil); | |
791 | } | |
792 | ||
793 | tem = Vpurify_flag; | |
794 | Vpurify_flag = Qnil; | |
795 | ||
796 | fflush (stdout); | |
797 | #ifdef VMS | |
798 | mapout_data (XSTRING (intoname)->data); | |
799 | #else | |
800 | /* Tell malloc where start of impure now is */ | |
801 | /* Also arrange for warnings when nearly out of space. */ | |
802 | #ifndef SYSTEM_MALLOC | |
70eb2c3e | 803 | memory_warnings (&my_edata, malloc_warning); |
f927c5ae JB |
804 | #endif |
805 | unexec (XSTRING (intoname)->data, | |
2447c626 | 806 | !NILP (symname) ? XSTRING (symname)->data : 0, &my_edata, 0, 0); |
f927c5ae JB |
807 | #endif /* not VMS */ |
808 | ||
809 | Vpurify_flag = tem; | |
810 | ||
811 | return Qnil; | |
812 | } | |
813 | ||
814 | #endif /* not HAVE_SHM */ | |
815 | ||
816 | #endif /* not CANNOT_DUMP */ | |
817 | \f | |
4b163808 | 818 | #ifndef SEPCHAR |
f927c5ae JB |
819 | #define SEPCHAR ':' |
820 | #endif | |
821 | ||
822 | Lisp_Object | |
823 | decode_env_path (evarname, defalt) | |
824 | char *evarname, *defalt; | |
825 | { | |
826 | register char *path, *p; | |
827 | extern char *index (); | |
828 | ||
829 | Lisp_Object lpath; | |
830 | ||
2447c626 JB |
831 | /* It's okay to use getenv here, because this function is only used |
832 | to initialize variables when Emacs starts up, and isn't called | |
833 | after that. */ | |
e065a56e JB |
834 | if (evarname != 0) |
835 | path = (char *) getenv (evarname); | |
836 | else | |
837 | path = 0; | |
f927c5ae JB |
838 | if (!path) |
839 | path = defalt; | |
840 | lpath = Qnil; | |
841 | while (1) | |
842 | { | |
843 | p = index (path, SEPCHAR); | |
844 | if (!p) p = path + strlen (path); | |
845 | lpath = Fcons (p - path ? make_string (path, p - path) : Qnil, | |
846 | lpath); | |
847 | if (*p) | |
848 | path = p + 1; | |
849 | else | |
850 | break; | |
851 | } | |
852 | return Fnreverse (lpath); | |
853 | } | |
854 | ||
855 | syms_of_emacs () | |
856 | { | |
83591e66 | 857 | #ifndef CANNOT_DUMP |
f927c5ae JB |
858 | #ifdef HAVE_SHM |
859 | defsubr (&Sdump_emacs_data); | |
860 | #else | |
861 | defsubr (&Sdump_emacs); | |
83591e66 | 862 | #endif |
f927c5ae JB |
863 | #endif |
864 | ||
865 | defsubr (&Skill_emacs); | |
866 | ||
59653951 JB |
867 | defsubr (&Sinvocation_name); |
868 | ||
f927c5ae JB |
869 | DEFVAR_LISP ("command-line-args", &Vcommand_line_args, |
870 | "Args passed by shell to Emacs, as a list of strings."); | |
871 | ||
872 | DEFVAR_LISP ("system-type", &Vsystem_type, | |
873 | "Value is symbol indicating type of operating system you are using."); | |
874 | Vsystem_type = intern (SYSTEM_TYPE); | |
875 | ||
876 | DEFVAR_BOOL ("noninteractive", &noninteractive1, | |
877 | "Non-nil means Emacs is running without interactive terminal."); | |
e5d77022 | 878 | |
e5d77022 | 879 | DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook, |
edc8ae07 JB |
880 | "Hook to be run whenever kill-emacs is called.\n\ |
881 | Since kill-emacs may be invoked when the terminal is disconnected (or\n\ | |
882 | in other similar situations), functions placed on this hook should not\n\ | |
679aee02 | 883 | expect to be able to interact with the user."); |
edc8ae07 | 884 | Vkill_emacs_hook = Qnil; |
3005da00 RS |
885 | |
886 | DEFVAR_INT ("emacs-priority", &emacs_priority, | |
887 | "Priority for Emacs to run at.\n\ | |
888 | This value is effective only if set before Emacs is dumped,\n\ | |
889 | and only if the Emacs executable is installed with setuid to permit\n\ | |
890 | it to change priority. (Emacs sets its uid back to the real uid.)"); | |
891 | emacs_priority = 0; | |
59653951 JB |
892 | |
893 | staticpro (&Vinvocation_name); | |
894 | Vinvocation_name = Qnil; | |
f927c5ae | 895 | } |