Commit | Line | Data |
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f927c5ae | 1 | /* Fully extensible Emacs, running on Unix, intended for GNU. |
4a2f9c6a | 2 | Copyright (C) 1985,86,87,93,94,95,97,1998 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 | |
5a7670bf RS |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
f927c5ae JB |
20 | |
21 | ||
22 | #include <signal.h> | |
23 | #include <errno.h> | |
24 | ||
18160b98 | 25 | #include <config.h> |
f927c5ae JB |
26 | #include <stdio.h> |
27 | ||
28 | #include <sys/types.h> | |
29 | #include <sys/file.h> | |
30 | ||
31 | #ifdef VMS | |
32 | #include <ssdef.h> | |
33 | #endif | |
34 | ||
488b7cb3 | 35 | #ifdef BSD_SYSTEM |
f927c5ae JB |
36 | #include <sys/ioctl.h> |
37 | #endif | |
38 | ||
f927c5ae JB |
39 | #include "lisp.h" |
40 | #include "commands.h" | |
bef79ee4 | 41 | #include "intervals.h" |
f927c5ae | 42 | |
edc8ae07 | 43 | #include "systty.h" |
6c3a4e9d | 44 | #include "blockinput.h" |
8090eb09 | 45 | #include "syssignal.h" |
6c362a8b | 46 | #include "process.h" |
dfcf069d | 47 | #include "keyboard.h" |
a41f8bed | 48 | |
53c58b5d RS |
49 | #ifdef HAVE_SETRLIMIT |
50 | #include <sys/time.h> | |
51 | #include <sys/resource.h> | |
52 | #endif | |
53 | ||
f927c5ae JB |
54 | #ifndef O_RDWR |
55 | #define O_RDWR 2 | |
56 | #endif | |
57 | ||
43165242 | 58 | extern void malloc_warning (); |
0269dedb | 59 | extern void set_time_zone_rule (); |
43165242 KH |
60 | extern char *index (); |
61 | extern char *strerror (); | |
62 | ||
f927c5ae JB |
63 | /* Command line args from shell, as list of strings */ |
64 | Lisp_Object Vcommand_line_args; | |
65 | ||
59653951 JB |
66 | /* The name under which Emacs was invoked, with any leading directory |
67 | names discarded. */ | |
68 | Lisp_Object Vinvocation_name; | |
69 | ||
ace40a69 RS |
70 | /* The directory name from which Emacs was invoked. */ |
71 | Lisp_Object Vinvocation_directory; | |
72 | ||
07f4d123 RS |
73 | /* The directory name in which to find subdirs such as lisp and etc. |
74 | nil means get them only from PATH_LOADSEARCH. */ | |
75 | Lisp_Object Vinstallation_directory; | |
76 | ||
e5d77022 JB |
77 | /* Hook run by `kill-emacs' before it does really anything. */ |
78 | Lisp_Object Vkill_emacs_hook; | |
79 | ||
7317d9e8 RS |
80 | #ifdef SIGUSR1 |
81 | /* Hooks for signal USR1 and USR2 handing */ | |
82 | Lisp_Object Vsignal_USR1_hook; | |
83 | #ifdef SIGUSR2 | |
84 | Lisp_Object Vsignal_USR2_hook; | |
85 | #endif | |
86 | #endif | |
87 | ||
f927c5ae JB |
88 | /* Set nonzero after Emacs has started up the first time. |
89 | Prevents reinitialization of the Lisp world and keymaps | |
90 | on subsequent starts. */ | |
91 | int initialized; | |
92 | ||
15aaf1b5 RS |
93 | #ifdef DOUG_LEA_MALLOC |
94 | /* Preserves a pointer to the memory allocated that copies that | |
95 | static data inside glibc's malloc. */ | |
96 | void *malloc_state_ptr; | |
97 | /* From glibc, a routine that returns a copy of the malloc internal state. */ | |
98 | extern void *malloc_get_state (); | |
99 | /* From glibc, a routine that overwrites the malloc internal state. */ | |
100 | extern void malloc_set_state (); | |
101 | #endif | |
102 | ||
271c7b7c | 103 | /* Variable whose value is symbol giving operating system type. */ |
f927c5ae | 104 | Lisp_Object Vsystem_type; |
271c7b7c RS |
105 | |
106 | /* Variable whose value is string giving configuration built for. */ | |
107 | Lisp_Object Vsystem_configuration; | |
f0fc0b1a KH |
108 | |
109 | /* Variable whose value is string giving configuration options, | |
110 | for use when reporting bugs. */ | |
111 | Lisp_Object Vsystem_configuration_options; | |
112 | ||
213d0b1f RS |
113 | Lisp_Object Qfile_name_handler_alist; |
114 | ||
f927c5ae JB |
115 | /* If non-zero, emacs should not attempt to use an window-specific code, |
116 | but instead should use the virtual terminal under which it was started */ | |
117 | int inhibit_window_system; | |
118 | ||
5aa7f46a JB |
119 | /* If nonzero, set Emacs to run at this priority. This is also used |
120 | in child_setup and sys_suspend to make sure subshells run at normal | |
121 | priority; Those functions have their own extern declaration. */ | |
3005da00 RS |
122 | int emacs_priority; |
123 | ||
7074fde6 FP |
124 | /* If non-zero a filter or a sentinel is running. Tested to save the match |
125 | data on the first attempt to change it inside asynchronous code. */ | |
126 | int running_asynch_code; | |
127 | ||
647cec74 | 128 | #ifdef BSD_PGRPS |
9ae8f997 JB |
129 | /* See sysdep.c. */ |
130 | extern int inherited_pgroup; | |
131 | #endif | |
132 | ||
f927c5ae JB |
133 | #ifdef HAVE_X_WINDOWS |
134 | /* If non-zero, -d was specified, meaning we're using some window system. */ | |
135 | int display_arg; | |
136 | #endif | |
137 | ||
138 | /* An address near the bottom of the stack. | |
139 | Tells GC how to save a copy of the stack. */ | |
140 | char *stack_bottom; | |
141 | ||
8ba50e1a | 142 | #ifdef HAVE_WINDOW_SYSTEM |
f927c5ae | 143 | extern Lisp_Object Vwindow_system; |
8ba50e1a | 144 | #endif /* HAVE_WINDOW_SYSTEM */ |
f927c5ae | 145 | |
1090a161 RS |
146 | extern Lisp_Object Vauto_save_list_file_name; |
147 | ||
f927c5ae JB |
148 | #ifdef USG_SHARED_LIBRARIES |
149 | /* If nonzero, this is the place to put the end of the writable segment | |
150 | at startup. */ | |
151 | ||
152 | unsigned int bss_end = 0; | |
153 | #endif | |
154 | ||
155 | /* Nonzero means running Emacs without interactive terminal. */ | |
156 | ||
157 | int noninteractive; | |
158 | ||
159 | /* Value of Lisp variable `noninteractive'. | |
160 | Normally same as C variable `noninteractive' | |
161 | but nothing terrible happens if user sets this one. */ | |
162 | ||
163 | int noninteractive1; | |
e29f86e4 RS |
164 | |
165 | /* Save argv and argc. */ | |
166 | char **initial_argv; | |
167 | int initial_argc; | |
081bef73 RS |
168 | |
169 | static void sort_args (); | |
dfcf069d | 170 | void syms_of_emacs (); |
f927c5ae JB |
171 | \f |
172 | /* Signal code for the fatal signal that was received */ | |
173 | int fatal_error_code; | |
174 | ||
175 | /* Nonzero if handling a fatal error already */ | |
176 | int fatal_error_in_progress; | |
177 | ||
7317d9e8 RS |
178 | #ifdef SIGUSR1 |
179 | int SIGUSR1_in_progress=0; | |
180 | SIGTYPE | |
181 | handle_USR1_signal (sig) | |
182 | int sig; | |
183 | { | |
184 | if (! SIGUSR1_in_progress) | |
185 | { | |
186 | SIGUSR1_in_progress = 1; | |
187 | ||
188 | if (!NILP (Vrun_hooks) && !noninteractive) | |
189 | call1 (Vrun_hooks, intern ("signal-USR1-hook")); | |
190 | ||
191 | SIGUSR1_in_progress = 0; | |
192 | } | |
193 | } | |
fcf01ad3 | 194 | |
7317d9e8 RS |
195 | #ifdef SIGUSR2 |
196 | int SIGUSR2_in_progress=0; | |
197 | SIGTYPE | |
198 | handle_USR2_signal (sig) | |
199 | int sig; | |
200 | { | |
201 | if (! SIGUSR2_in_progress) | |
202 | { | |
203 | SIGUSR2_in_progress = 1; | |
204 | ||
205 | if (!NILP (Vrun_hooks) && !noninteractive) | |
206 | call1 (Vrun_hooks, intern ("signal-USR2-hook")); | |
207 | ||
208 | SIGUSR2_in_progress = 0; | |
209 | } | |
210 | } | |
211 | #endif | |
212 | #endif | |
213 | ||
f927c5ae | 214 | /* Handle bus errors, illegal instruction, etc. */ |
2447c626 | 215 | SIGTYPE |
f927c5ae JB |
216 | fatal_error_signal (sig) |
217 | int sig; | |
218 | { | |
f927c5ae JB |
219 | fatal_error_code = sig; |
220 | signal (sig, SIG_DFL); | |
221 | ||
061b7f94 RS |
222 | TOTALLY_UNBLOCK_INPUT; |
223 | ||
f927c5ae | 224 | /* If fatal error occurs in code below, avoid infinite recursion. */ |
8090eb09 JB |
225 | if (! fatal_error_in_progress) |
226 | { | |
227 | fatal_error_in_progress = 1; | |
f927c5ae | 228 | |
f7ab4e3d | 229 | shut_down_emacs (sig, 0, Qnil); |
8090eb09 | 230 | } |
f927c5ae JB |
231 | |
232 | #ifdef VMS | |
f927c5ae JB |
233 | LIB$STOP (SS$_ABORT); |
234 | #else | |
8090eb09 JB |
235 | /* Signal the same code; this time it will really be fatal. |
236 | Remember that since we're in a signal handler, the signal we're | |
237 | going to send is probably blocked, so we have to unblock it if we | |
238 | want to really receive it. */ | |
29b89fe0 | 239 | #ifndef MSDOS |
a90538cb | 240 | sigunblock (sigmask (fatal_error_code)); |
29b89fe0 | 241 | #endif |
f927c5ae JB |
242 | kill (getpid (), fatal_error_code); |
243 | #endif /* not VMS */ | |
244 | } | |
271c7b7c RS |
245 | |
246 | #ifdef SIGDANGER | |
247 | ||
16c323ee | 248 | /* Handler for SIGDANGER. */ |
271c7b7c RS |
249 | SIGTYPE |
250 | memory_warning_signal (sig) | |
251 | int sig; | |
252 | { | |
253 | signal (sig, memory_warning_signal); | |
254 | ||
255 | malloc_warning ("Operating system warns that virtual memory is running low.\n"); | |
55796183 RS |
256 | |
257 | /* It might be unsafe to call do_auto_save now. */ | |
258 | force_auto_save_soon (); | |
271c7b7c RS |
259 | } |
260 | #endif | |
fcf01ad3 RS |
261 | |
262 | /* We define abort, rather than using it from the library, | |
c9fe9cce KH |
263 | so that GDB can return from a breakpoint here. |
264 | MSDOS has its own definition on msdos.c */ | |
fcf01ad3 | 265 | |
8be35eab | 266 | #ifndef DOS_NT |
fcf01ad3 RS |
267 | void |
268 | abort () | |
269 | { | |
270 | kill (getpid (), SIGABRT); | |
271 | } | |
c9fe9cce | 272 | #endif |
fcf01ad3 | 273 | |
f927c5ae JB |
274 | \f |
275 | /* Code for dealing with Lisp access to the Unix command line */ | |
276 | ||
dfcf069d | 277 | static void |
f927c5ae JB |
278 | init_cmdargs (argc, argv, skip_args) |
279 | int argc; | |
280 | char **argv; | |
281 | int skip_args; | |
282 | { | |
283 | register int i; | |
213d0b1f RS |
284 | Lisp_Object name, dir, tem; |
285 | int count = specpdl_ptr - specpdl; | |
286 | Lisp_Object raw_name; | |
f927c5ae | 287 | |
e29f86e4 RS |
288 | initial_argv = argv; |
289 | initial_argc = argc; | |
290 | ||
213d0b1f RS |
291 | raw_name = build_string (argv[0]); |
292 | ||
293 | /* Add /: to the front of the name | |
294 | if it would otherwise be treated as magic. */ | |
295 | tem = Ffind_file_name_handler (raw_name, Qt); | |
296 | if (! NILP (tem)) | |
297 | raw_name = concat2 (build_string ("/:"), raw_name); | |
298 | ||
299 | Vinvocation_name = Ffile_name_nondirectory (raw_name); | |
300 | Vinvocation_directory = Ffile_name_directory (raw_name); | |
301 | ||
ace40a69 RS |
302 | /* If we got no directory in argv[0], search PATH to find where |
303 | Emacs actually came from. */ | |
304 | if (NILP (Vinvocation_directory)) | |
305 | { | |
306 | Lisp_Object found; | |
307 | int yes = openp (Vexec_path, Vinvocation_name, | |
6c362a8b | 308 | EXEC_SUFFIXES, &found, 1); |
e443f843 | 309 | if (yes == 1) |
213d0b1f RS |
310 | { |
311 | /* Add /: to the front of the name | |
312 | if it would otherwise be treated as magic. */ | |
313 | tem = Ffind_file_name_handler (found, Qt); | |
314 | if (! NILP (tem)) | |
315 | found = concat2 (build_string ("/:"), found); | |
316 | Vinvocation_directory = Ffile_name_directory (found); | |
317 | } | |
ace40a69 | 318 | } |
59653951 | 319 | |
4133b300 RS |
320 | if (!NILP (Vinvocation_directory) |
321 | && NILP (Ffile_name_absolute_p (Vinvocation_directory))) | |
213d0b1f RS |
322 | /* Emacs was started with relative path, like ./emacs. |
323 | Make it absolute. */ | |
4133b300 RS |
324 | Vinvocation_directory = Fexpand_file_name (Vinvocation_directory, Qnil); |
325 | ||
07f4d123 RS |
326 | Vinstallation_directory = Qnil; |
327 | ||
328 | if (!NILP (Vinvocation_directory)) | |
329 | { | |
330 | dir = Vinvocation_directory; | |
331 | name = Fexpand_file_name (Vinvocation_name, dir); | |
332 | while (1) | |
333 | { | |
f5ab9736 | 334 | Lisp_Object tem, lib_src_exists; |
07f4d123 RS |
335 | Lisp_Object etc_exists, info_exists; |
336 | ||
f5ab9736 RS |
337 | /* See if dir contains subdirs for use by Emacs. |
338 | Check for the ones that would exist in a build directory, | |
339 | not including lisp and info. */ | |
340 | tem = Fexpand_file_name (build_string ("lib-src"), dir); | |
341 | lib_src_exists = Ffile_exists_p (tem); | |
de004cc6 | 342 | |
70344b34 | 343 | #ifdef MSDOS |
de004cc6 RS |
344 | /* MSDOS installations frequently remove lib-src, but we still |
345 | must set installation-directory, or else info won't find | |
346 | its files (it uses the value of installation-directory). */ | |
347 | tem = Fexpand_file_name (build_string ("info"), dir); | |
348 | info_exists = Ffile_exists_p (tem); | |
70344b34 EZ |
349 | #else |
350 | info_exists = Qnil; | |
351 | #endif | |
de004cc6 RS |
352 | |
353 | if (!NILP (lib_src_exists) || !NILP (info_exists)) | |
07f4d123 | 354 | { |
f5ab9736 RS |
355 | tem = Fexpand_file_name (build_string ("etc"), dir); |
356 | etc_exists = Ffile_exists_p (tem); | |
357 | if (!NILP (etc_exists)) | |
07f4d123 | 358 | { |
f5ab9736 RS |
359 | Vinstallation_directory |
360 | = Ffile_name_as_directory (dir); | |
361 | break; | |
07f4d123 RS |
362 | } |
363 | } | |
364 | ||
365 | /* See if dir's parent contains those subdirs. */ | |
f5ab9736 RS |
366 | tem = Fexpand_file_name (build_string ("../lib-src"), dir); |
367 | lib_src_exists = Ffile_exists_p (tem); | |
de004cc6 | 368 | |
70344b34 EZ |
369 | |
370 | #ifdef MSDOS | |
371 | /* See the MSDOS commentary above. */ | |
de004cc6 RS |
372 | tem = Fexpand_file_name (build_string ("../info"), dir); |
373 | info_exists = Ffile_exists_p (tem); | |
70344b34 EZ |
374 | #else |
375 | info_exists = Qnil; | |
376 | #endif | |
de004cc6 RS |
377 | |
378 | if (!NILP (lib_src_exists) || !NILP (info_exists)) | |
07f4d123 | 379 | { |
f5ab9736 RS |
380 | tem = Fexpand_file_name (build_string ("../etc"), dir); |
381 | etc_exists = Ffile_exists_p (tem); | |
382 | if (!NILP (etc_exists)) | |
07f4d123 | 383 | { |
f5ab9736 RS |
384 | tem = Fexpand_file_name (build_string (".."), dir); |
385 | Vinstallation_directory | |
386 | = Ffile_name_as_directory (tem); | |
387 | break; | |
07f4d123 RS |
388 | } |
389 | } | |
390 | ||
391 | /* If the Emacs executable is actually a link, | |
392 | next try the dir that the link points into. */ | |
393 | tem = Ffile_symlink_p (name); | |
394 | if (!NILP (tem)) | |
395 | { | |
260ec24d | 396 | name = Fexpand_file_name (tem, dir); |
07f4d123 RS |
397 | dir = Ffile_name_directory (name); |
398 | } | |
399 | else | |
400 | break; | |
401 | } | |
402 | } | |
403 | ||
f927c5ae JB |
404 | Vcommand_line_args = Qnil; |
405 | ||
406 | for (i = argc - 1; i >= 0; i--) | |
407 | { | |
408 | if (i == 0 || i > skip_args) | |
409 | Vcommand_line_args | |
410 | = Fcons (build_string (argv[i]), Vcommand_line_args); | |
411 | } | |
213d0b1f RS |
412 | |
413 | unbind_to (count, Qnil); | |
f927c5ae | 414 | } |
59653951 JB |
415 | |
416 | DEFUN ("invocation-name", Finvocation_name, Sinvocation_name, 0, 0, 0, | |
417 | "Return the program name that was used to run Emacs.\n\ | |
418 | Any directory names are omitted.") | |
419 | () | |
420 | { | |
421 | return Fcopy_sequence (Vinvocation_name); | |
422 | } | |
423 | ||
ace40a69 RS |
424 | DEFUN ("invocation-directory", Finvocation_directory, Sinvocation_directory, |
425 | 0, 0, 0, | |
426 | "Return the directory name in which the Emacs executable was located") | |
427 | () | |
428 | { | |
429 | return Fcopy_sequence (Vinvocation_directory); | |
430 | } | |
431 | ||
f927c5ae JB |
432 | \f |
433 | #ifdef VMS | |
434 | #ifdef LINK_CRTL_SHARE | |
34035df3 | 435 | #ifdef SHARABLE_LIB_BUG |
f927c5ae | 436 | extern noshare char **environ; |
34035df3 | 437 | #endif /* SHARABLE_LIB_BUG */ |
f927c5ae JB |
438 | #endif /* LINK_CRTL_SHARE */ |
439 | #endif /* VMS */ | |
440 | ||
0269dedb RS |
441 | #ifdef HAVE_TZSET |
442 | /* A valid but unlikely value for the TZ environment value. | |
443 | It is OK (though a bit slower) if the user actually chooses this value. */ | |
444 | static char dump_tz[] = "UtC0"; | |
445 | #endif | |
446 | ||
a90538cb | 447 | #ifndef ORDINARY_LINK |
efd241cc RS |
448 | /* We don't include crtbegin.o and crtend.o in the link, |
449 | so these functions and variables might be missed. | |
450 | Provide dummy definitions to avoid error. | |
451 | (We don't have any real constructors or destructors.) */ | |
452 | #ifdef __GNUC__ | |
46e65b73 | 453 | #ifndef GCC_CTORS_IN_LIBC |
dfcf069d | 454 | void __do_global_ctors () |
efd241cc | 455 | {} |
dfcf069d | 456 | void __do_global_ctors_aux () |
c83a7064 | 457 | {} |
dfcf069d | 458 | void __do_global_dtors () |
33143604 | 459 | {} |
64c1864a RS |
460 | /* Linux has a bug in its library; avoid an error. */ |
461 | #ifndef LINUX | |
c83a7064 | 462 | char * __CTOR_LIST__[2] = { (char *) (-1), 0 }; |
64c1864a | 463 | #endif |
c83a7064 | 464 | char * __DTOR_LIST__[2] = { (char *) (-1), 0 }; |
46e65b73 | 465 | #endif /* GCC_CTORS_IN_LIBC */ |
dfcf069d | 466 | void __main () |
efd241cc | 467 | {} |
efd241cc | 468 | #endif /* __GNUC__ */ |
a90538cb | 469 | #endif /* ORDINARY_LINK */ |
efd241cc | 470 | |
e2925360 KH |
471 | /* Test whether the next argument in ARGV matches SSTR or a prefix of |
472 | LSTR (at least MINLEN characters). If so, then if VALPTR is non-null | |
473 | (the argument is supposed to have a value) store in *VALPTR either | |
474 | the next argument or the portion of this one after the equal sign. | |
475 | ARGV is read starting at position *SKIPPTR; this index is advanced | |
476 | by the number of arguments used. | |
477 | ||
478 | Too bad we can't just use getopt for all of this, but we don't have | |
479 | enough information to do it right. */ | |
081bef73 | 480 | |
e2925360 | 481 | static int |
df6530f8 | 482 | argmatch (argv, argc, sstr, lstr, minlen, valptr, skipptr) |
e2925360 | 483 | char **argv; |
df6530f8 | 484 | int argc; |
e2925360 KH |
485 | char *sstr; |
486 | char *lstr; | |
487 | int minlen; | |
488 | char **valptr; | |
489 | int *skipptr; | |
490 | { | |
491 | char *p; | |
492 | int arglen; | |
df6530f8 RS |
493 | char *arg; |
494 | ||
495 | /* Don't access argv[argc]; give up in advance. */ | |
496 | if (argc <= *skipptr + 1) | |
497 | return 0; | |
498 | ||
499 | arg = argv[*skipptr+1]; | |
e2925360 KH |
500 | if (arg == NULL) |
501 | return 0; | |
502 | if (strcmp (arg, sstr) == 0) | |
503 | { | |
504 | if (valptr != NULL) | |
505 | { | |
506 | *valptr = argv[*skipptr+2]; | |
507 | *skipptr += 2; | |
508 | } | |
509 | else | |
510 | *skipptr += 1; | |
511 | return 1; | |
512 | } | |
513 | arglen = (valptr != NULL && (p = index (arg, '=')) != NULL | |
514 | ? p - arg : strlen (arg)); | |
c03e1113 | 515 | if (lstr == 0 || arglen < minlen || strncmp (arg, lstr, arglen) != 0) |
e2925360 KH |
516 | return 0; |
517 | else if (valptr == NULL) | |
518 | { | |
519 | *skipptr += 1; | |
520 | return 1; | |
521 | } | |
522 | else if (p != NULL) | |
523 | { | |
524 | *valptr = p+1; | |
525 | *skipptr += 1; | |
526 | return 1; | |
527 | } | |
528 | else if (argv[*skipptr+2] != NULL) | |
529 | { | |
530 | *valptr = argv[*skipptr+2]; | |
531 | *skipptr += 2; | |
532 | return 1; | |
533 | } | |
534 | else | |
535 | { | |
536 | return 0; | |
537 | } | |
538 | } | |
539 | ||
f927c5ae | 540 | /* ARGSUSED */ |
dfcf069d | 541 | int |
f927c5ae JB |
542 | main (argc, argv, envp) |
543 | int argc; | |
544 | char **argv; | |
545 | char **envp; | |
546 | { | |
547 | char stack_bottom_variable; | |
548 | int skip_args = 0; | |
549 | extern int errno; | |
dfcf069d | 550 | extern int sys_nerr; |
53c58b5d RS |
551 | #ifdef HAVE_SETRLIMIT |
552 | struct rlimit rlim; | |
553 | #endif | |
f927c5ae | 554 | |
6000fe37 RS |
555 | #ifdef LINUX_SBRK_BUG |
556 | __sbrk (1); | |
557 | #endif | |
558 | ||
15aaf1b5 RS |
559 | #ifdef DOUG_LEA_MALLOC |
560 | if (initialized) | |
561 | { | |
dfcf069d | 562 | extern void r_alloc_reinit (); |
15aaf1b5 RS |
563 | malloc_set_state (malloc_state_ptr); |
564 | free (malloc_state_ptr); | |
ea2acec5 | 565 | r_alloc_reinit (); |
15aaf1b5 RS |
566 | } |
567 | #endif | |
568 | ||
d785cf9e RS |
569 | #ifdef RUN_TIME_REMAP |
570 | if (initialized) | |
571 | run_time_remap (argv[0]); | |
572 | #endif | |
573 | ||
081bef73 RS |
574 | sort_args (argc, argv); |
575 | ||
1702afef RS |
576 | if (argmatch (argv, argc, "-version", "--version", 3, NULL, &skip_args)) |
577 | { | |
578 | Lisp_Object tem; | |
579 | tem = Fsymbol_value (intern ("emacs-version")); | |
580 | if (!STRINGP (tem)) | |
581 | { | |
582 | fprintf (stderr, "Invalid value of `emacs-version'\n"); | |
583 | exit (1); | |
584 | } | |
585 | else | |
586 | { | |
30ce1583 | 587 | printf ("GNU Emacs %s\n", XSTRING (tem)->data); |
744b2e45 | 588 | printf ("Copyright (C) 1997 Free Software Foundation, Inc.\n"); |
b455c665 RS |
589 | printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n"); |
590 | printf ("You may redistribute copies of Emacs\n"); | |
591 | printf ("under the terms of the GNU General Public License.\n"); | |
592 | printf ("For more information about these matters, "); | |
593 | printf ("see the files named COPYING.\n"); | |
1702afef RS |
594 | exit (0); |
595 | } | |
596 | } | |
597 | ||
f927c5ae JB |
598 | /* Map in shared memory, if we are using that. */ |
599 | #ifdef HAVE_SHM | |
df6530f8 | 600 | if (argmatch (argv, argc, "-nl", "--no-shared-memory", 6, NULL, &skip_args)) |
f927c5ae JB |
601 | { |
602 | map_in_data (0); | |
603 | /* The shared memory was just restored, which clobbered this. */ | |
604 | skip_args = 1; | |
605 | } | |
606 | else | |
607 | { | |
608 | map_in_data (1); | |
609 | /* The shared memory was just restored, which clobbered this. */ | |
610 | skip_args = 0; | |
611 | } | |
612 | #endif | |
613 | ||
19a36ec6 | 614 | #ifdef NeXT |
b9df9faa KH |
615 | { |
616 | extern int malloc_cookie; | |
617 | /* This helps out unexnext.c. */ | |
618 | if (initialized) | |
619 | if (malloc_jumpstart (malloc_cookie) != 0) | |
620 | printf ("malloc jumpstart failed!\n"); | |
621 | } | |
19a36ec6 RS |
622 | #endif /* NeXT */ |
623 | ||
f927c5ae JB |
624 | #ifdef VMS |
625 | /* If -map specified, map the data file in */ | |
e2925360 KH |
626 | { |
627 | char *file; | |
df6530f8 | 628 | if (argmatch (argv, argc, "-map", "--map-data", 3, &mapin_file, &skip_args)) |
e2925360 KH |
629 | mapin_data (file); |
630 | } | |
f927c5ae JB |
631 | |
632 | #ifdef LINK_CRTL_SHARE | |
34035df3 | 633 | #ifdef SHARABLE_LIB_BUG |
f927c5ae JB |
634 | /* Bletcherous shared libraries! */ |
635 | if (!stdin) | |
636 | stdin = fdopen (0, "r"); | |
637 | if (!stdout) | |
638 | stdout = fdopen (1, "w"); | |
639 | if (!stderr) | |
640 | stderr = fdopen (2, "w"); | |
641 | if (!environ) | |
642 | environ = envp; | |
34035df3 | 643 | #endif /* SHARABLE_LIB_BUG */ |
f927c5ae JB |
644 | #endif /* LINK_CRTL_SHARE */ |
645 | #endif /* VMS */ | |
646 | ||
ea2acec5 | 647 | #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK) |
6c2935e9 RS |
648 | /* Extend the stack space available. |
649 | Don't do that if dumping, since some systems (e.g. DJGPP) | |
650 | might define a smaller stack limit at that time. */ | |
651 | if (1 | |
652 | #ifndef CANNOT_DUMP | |
653 | && (!noninteractive || initialized) | |
654 | #endif | |
655 | && !getrlimit (RLIMIT_STACK, &rlim)) | |
53c58b5d | 656 | { |
509a8fcd | 657 | long newlim; |
6c2935e9 | 658 | extern int re_max_failures; |
03effc23 KH |
659 | /* Approximate the amount regex.c needs per unit of re_max_failures. */ |
660 | int ratio = 20 * sizeof (char *); | |
661 | /* Then add 33% to cover the size of the smaller stacks that regex.c | |
662 | successively allocates and discards, on its way to the maximum. */ | |
663 | ratio += ratio / 3; | |
664 | /* Add in some extra to cover | |
665 | what we're likely to use for other reasons. */ | |
666 | newlim = re_max_failures * ratio + 200000; | |
d0381a7f RS |
667 | #ifdef __NetBSD__ |
668 | /* NetBSD (at least NetBSD 1.2G and former) has a bug in its | |
669 | stack allocation routine for new process that the allocation | |
670 | fails if stack limit is not on page boundary. So, round up the | |
671 | new limit to page boundary. */ | |
672 | newlim = (newlim + getpagesize () - 1) / getpagesize () * getpagesize(); | |
673 | #endif | |
509a8fcd | 674 | if (newlim > rlim.rlim_max) |
6c2935e9 RS |
675 | { |
676 | newlim = rlim.rlim_max; | |
03effc23 KH |
677 | /* Don't let regex.c overflow the stack we have. */ |
678 | re_max_failures = (newlim - 200000) / ratio; | |
6c2935e9 | 679 | } |
509a8fcd RS |
680 | if (rlim.rlim_cur < newlim) |
681 | rlim.rlim_cur = newlim; | |
682 | ||
53c58b5d RS |
683 | setrlimit (RLIMIT_STACK, &rlim); |
684 | } | |
ea2acec5 | 685 | #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */ |
53c58b5d | 686 | |
f927c5ae JB |
687 | /* Record (approximately) where the stack begins. */ |
688 | stack_bottom = &stack_bottom_variable; | |
689 | ||
f927c5ae JB |
690 | #ifdef USG_SHARED_LIBRARIES |
691 | if (bss_end) | |
1d233b80 | 692 | brk ((void *)bss_end); |
f927c5ae JB |
693 | #endif |
694 | ||
695 | clearerr (stdin); | |
9ae8f997 | 696 | |
f927c5ae JB |
697 | #ifndef SYSTEM_MALLOC |
698 | if (! initialized) | |
9ac0d9e0 JB |
699 | { |
700 | /* Arrange to get warning messages as memory fills up. */ | |
701 | memory_warnings (0, malloc_warning); | |
702 | ||
703 | /* Arrange to disable interrupt input while malloc and friends are | |
704 | running. */ | |
705 | uninterrupt_malloc (); | |
706 | } | |
f927c5ae JB |
707 | #endif /* not SYSTEM_MALLOC */ |
708 | ||
29b89fe0 RS |
709 | #ifdef MSDOS |
710 | /* We do all file input/output as binary files. When we need to translate | |
711 | newlines, we do that manually. */ | |
712 | _fmode = O_BINARY; | |
18198bb2 RS |
713 | |
714 | #if __DJGPP__ >= 2 | |
715 | if (!isatty (fileno (stdin))) | |
716 | setmode (fileno (stdin), O_BINARY); | |
717 | if (!isatty (fileno (stdout))) | |
718 | { | |
719 | fflush (stdout); | |
720 | setmode (fileno (stdout), O_BINARY); | |
721 | } | |
722 | #else /* not __DJGPP__ >= 2 */ | |
29b89fe0 RS |
723 | (stdin)->_flag &= ~_IOTEXT; |
724 | (stdout)->_flag &= ~_IOTEXT; | |
725 | (stderr)->_flag &= ~_IOTEXT; | |
18198bb2 | 726 | #endif /* not __DJGPP__ >= 2 */ |
29b89fe0 RS |
727 | #endif /* MSDOS */ |
728 | ||
a422068f | 729 | #ifdef SET_EMACS_PRIORITY |
3005da00 | 730 | if (emacs_priority) |
5aa7f46a | 731 | nice (emacs_priority); |
f927c5ae | 732 | setuid (getuid ()); |
a422068f | 733 | #endif /* SET_EMACS_PRIORITY */ |
f927c5ae | 734 | |
d8b3a65d | 735 | #ifdef EXTRA_INITIALIZE |
a9260219 | 736 | EXTRA_INITIALIZE; |
d8b3a65d RS |
737 | #endif |
738 | ||
f927c5ae JB |
739 | inhibit_window_system = 0; |
740 | ||
0b9f07b9 RS |
741 | /* --unibyte requests that we set up to do everything with single-byte |
742 | buffers and strings. We need to handle this before calling | |
743 | init_lread, init_editfns and other places that generate Lisp strings | |
744 | from text in the environment. */ | |
28a3f811 DL |
745 | if ((argmatch (argv, argc, "-unibyte", "--unibyte", 4, NULL, &skip_args)) |
746 | || getenv ("EMACS_UNIBYTE")) | |
0b9f07b9 RS |
747 | { |
748 | Lisp_Object symbol; | |
749 | symbol = intern ("default-enable-multibyte-characters"); | |
750 | Fset (symbol, Qnil); | |
751 | Fset_default (symbol, Qnil); | |
752 | } | |
753 | ||
4fc0b45b | 754 | /* Handle the -t switch, which specifies filename to use as terminal */ |
e2925360 KH |
755 | { |
756 | char *term; | |
df6530f8 | 757 | if (argmatch (argv, argc, "-t", "--terminal", 4, &term, &skip_args)) |
e2925360 KH |
758 | { |
759 | int result; | |
760 | close (0); | |
761 | close (1); | |
762 | result = open (term, O_RDWR, 2 ); | |
763 | if (result < 0) | |
764 | { | |
765 | char *errstring = strerror (errno); | |
766 | fprintf (stderr, "emacs: %s: %s\n", term, errstring); | |
767 | exit (1); | |
768 | } | |
769 | dup (0); | |
770 | if (! isatty (0)) | |
771 | { | |
772 | fprintf (stderr, "emacs: %s: not a tty\n", term); | |
773 | exit (1); | |
774 | } | |
775 | fprintf (stderr, "Using %s\n", term); | |
8ba50e1a | 776 | #ifdef HAVE_WINDOW_SYSTEM |
e2925360 | 777 | inhibit_window_system = 1; /* -t => -nw */ |
f927c5ae | 778 | #endif |
e2925360 KH |
779 | } |
780 | } | |
df6530f8 | 781 | if (argmatch (argv, argc, "-nw", "--no-windows", 6, NULL, &skip_args)) |
e2925360 | 782 | inhibit_window_system = 1; |
f927c5ae | 783 | |
e2925360 | 784 | /* Handle the -batch switch, which means don't do interactive display. */ |
f927c5ae | 785 | noninteractive = 0; |
df6530f8 | 786 | if (argmatch (argv, argc, "-batch", "--batch", 5, NULL, &skip_args)) |
e2925360 KH |
787 | noninteractive = 1; |
788 | ||
789 | /* Handle the --help option, which gives a usage message.. */ | |
df6530f8 | 790 | if (argmatch (argv, argc, "-help", "--help", 3, NULL, &skip_args)) |
f927c5ae | 791 | { |
e2925360 KH |
792 | printf ("\ |
793 | Usage: %s [-t term] [--terminal term] [-nw] [--no-windows] [--batch]\n\ | |
794 | [-q] [--no-init-file] [-u user] [--user user] [--debug-init]\n\ | |
28a3f811 | 795 | [--version] [--no-site-file]\n\ |
e2925360 | 796 | [-f func] [--funcall func] [-l file] [--load file] [--insert file]\n\ |
f822bec6 RS |
797 | [+linenum] file-to-visit [--kill]\n\ |
798 | Report bugs to bug-gnu-emacs@prep.ai.mit.edu. First, please see\n\ | |
8a7a3407 | 799 | the Bugs section of the Emacs manual or the file BUGS.\n", argv[0]); |
e2925360 | 800 | exit (0); |
f927c5ae JB |
801 | } |
802 | ||
081bef73 RS |
803 | #ifdef HAVE_X_WINDOWS |
804 | /* Stupid kludge to catch command-line display spec. We can't | |
805 | handle this argument entirely in window system dependent code | |
806 | because we don't even know which window system dependent code | |
807 | to run until we've recognized this argument. */ | |
808 | { | |
98ea0308 | 809 | char *displayname = 0; |
081bef73 RS |
810 | int i; |
811 | int count_before = skip_args; | |
812 | ||
df6530f8 | 813 | if (argmatch (argv, argc, "-d", "--display", 3, &displayname, &skip_args)) |
081bef73 | 814 | display_arg = 1; |
df6530f8 | 815 | else if (argmatch (argv, argc, "-display", 0, 3, &displayname, &skip_args)) |
081bef73 RS |
816 | display_arg = 1; |
817 | ||
818 | /* If we have the form --display=NAME, | |
819 | convert it into -d name. | |
820 | This requires inserting a new element into argv. */ | |
821 | if (displayname != 0 && skip_args - count_before == 1) | |
822 | { | |
823 | char **new = (char **) xmalloc (sizeof (char *) * (argc + 2)); | |
824 | int j; | |
825 | ||
826 | for (j = 0; j < count_before + 1; j++) | |
827 | new[j] = argv[j]; | |
828 | new[count_before + 1] = "-d"; | |
829 | new[count_before + 2] = displayname; | |
830 | for (j = count_before + 2; j <argc; j++) | |
831 | new[j + 1] = argv[j]; | |
832 | argv = new; | |
833 | argc++; | |
834 | } | |
1702afef RS |
835 | /* Change --display to -d, when its arg is separate. */ |
836 | else if (displayname != 0 && skip_args > count_before | |
837 | && argv[count_before + 1][1] == '-') | |
813f79d5 | 838 | argv[count_before + 1] = "-d"; |
081bef73 RS |
839 | |
840 | /* Don't actually discard this arg. */ | |
841 | skip_args = count_before; | |
842 | } | |
843 | #endif | |
844 | ||
edb85f59 RS |
845 | if (! noninteractive) |
846 | { | |
847 | #ifdef BSD_PGRPS | |
848 | if (initialized) | |
849 | { | |
850 | inherited_pgroup = EMACS_GETPGRP (0); | |
851 | setpgrp (0, getpid ()); | |
852 | } | |
853 | #else | |
854 | #if defined (USG5) && defined (INTERRUPT_INPUT) | |
855 | setpgrp (); | |
856 | #endif | |
857 | #endif | |
858 | } | |
859 | ||
fb8e9847 JB |
860 | #ifdef POSIX_SIGNALS |
861 | init_signals (); | |
862 | #endif | |
863 | ||
1efa2983 KH |
864 | /* Don't catch SIGHUP if dumping. */ |
865 | if (1 | |
866 | #ifndef CANNOT_DUMP | |
867 | && initialized | |
868 | #endif | |
869 | ) | |
870 | { | |
57e3d22a | 871 | sigblock (sigmask (SIGHUP)); |
1efa2983 KH |
872 | /* In --batch mode, don't catch SIGHUP if already ignored. |
873 | That makes nohup work. */ | |
874 | if (! noninteractive | |
875 | || signal (SIGHUP, SIG_IGN) != SIG_IGN) | |
876 | signal (SIGHUP, fatal_error_signal); | |
57e3d22a | 877 | sigunblock (sigmask (SIGHUP)); |
1efa2983 KH |
878 | } |
879 | ||
f927c5ae JB |
880 | if ( |
881 | #ifndef CANNOT_DUMP | |
882 | ! noninteractive || initialized | |
883 | #else | |
884 | 1 | |
885 | #endif | |
886 | ) | |
887 | { | |
1efa2983 | 888 | /* Don't catch these signals in batch mode if dumping. |
f927c5ae JB |
889 | On some machines, this sets static data that would make |
890 | signal fail to work right when the dumped Emacs is run. */ | |
f927c5ae JB |
891 | signal (SIGQUIT, fatal_error_signal); |
892 | signal (SIGILL, fatal_error_signal); | |
893 | signal (SIGTRAP, fatal_error_signal); | |
7317d9e8 RS |
894 | #ifdef SIGUSR1 |
895 | signal (SIGUSR1, handle_USR1_signal); | |
896 | #ifdef SIGUSR2 | |
897 | signal (SIGUSR2, handle_USR2_signal); | |
898 | #endif | |
899 | #endif | |
99e372cd RS |
900 | #ifdef SIGABRT |
901 | signal (SIGABRT, fatal_error_signal); | |
902 | #endif | |
903 | #ifdef SIGHWE | |
904 | signal (SIGHWE, fatal_error_signal); | |
905 | #endif | |
906 | #ifdef SIGPRE | |
907 | signal (SIGPRE, fatal_error_signal); | |
908 | #endif | |
909 | #ifdef SIGORE | |
910 | signal (SIGORE, fatal_error_signal); | |
911 | #endif | |
912 | #ifdef SIGUME | |
913 | signal (SIGUME, fatal_error_signal); | |
914 | #endif | |
915 | #ifdef SIGDLK | |
916 | signal (SIGDLK, fatal_error_signal); | |
917 | #endif | |
918 | #ifdef SIGCPULIM | |
919 | signal (SIGCPULIM, fatal_error_signal); | |
920 | #endif | |
a90538cb JB |
921 | #ifdef SIGIOT |
922 | /* This is missing on some systems - OS/2, for example. */ | |
f927c5ae | 923 | signal (SIGIOT, fatal_error_signal); |
a90538cb | 924 | #endif |
f927c5ae JB |
925 | #ifdef SIGEMT |
926 | signal (SIGEMT, fatal_error_signal); | |
927 | #endif | |
928 | signal (SIGFPE, fatal_error_signal); | |
00eaaa32 | 929 | #ifdef SIGBUS |
f927c5ae | 930 | signal (SIGBUS, fatal_error_signal); |
00eaaa32 | 931 | #endif |
f927c5ae | 932 | signal (SIGSEGV, fatal_error_signal); |
00eaaa32 | 933 | #ifdef SIGSYS |
f927c5ae | 934 | signal (SIGSYS, fatal_error_signal); |
00eaaa32 | 935 | #endif |
f927c5ae JB |
936 | signal (SIGTERM, fatal_error_signal); |
937 | #ifdef SIGXCPU | |
938 | signal (SIGXCPU, fatal_error_signal); | |
939 | #endif | |
940 | #ifdef SIGXFSZ | |
941 | signal (SIGXFSZ, fatal_error_signal); | |
942 | #endif /* SIGXFSZ */ | |
943 | ||
271c7b7c RS |
944 | #ifdef SIGDANGER |
945 | /* This just means available memory is getting low. */ | |
946 | signal (SIGDANGER, memory_warning_signal); | |
947 | #endif | |
948 | ||
f927c5ae | 949 | #ifdef AIX |
56e034fa RS |
950 | /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */ |
951 | signal (SIGXCPU, fatal_error_signal); | |
0aef8561 | 952 | #ifndef _I386 |
f927c5ae | 953 | signal (SIGIOINT, fatal_error_signal); |
0aef8561 | 954 | #endif |
f927c5ae JB |
955 | signal (SIGGRANT, fatal_error_signal); |
956 | signal (SIGRETRACT, fatal_error_signal); | |
957 | signal (SIGSOUND, fatal_error_signal); | |
958 | signal (SIGMSG, fatal_error_signal); | |
959 | #endif /* AIX */ | |
960 | } | |
961 | ||
962 | noninteractive1 = noninteractive; | |
963 | ||
964 | /* Perform basic initializations (not merely interning symbols) */ | |
965 | ||
966 | if (!initialized) | |
967 | { | |
968 | init_alloc_once (); | |
969 | init_obarray (); | |
970 | init_eval_once (); | |
270ce821 KH |
971 | init_charset_once (); |
972 | init_coding_once (); | |
f927c5ae | 973 | init_syntax_once (); /* Create standard syntax table. */ |
270ce821 | 974 | init_category_once (); /* Create standard category table. */ |
f927c5ae JB |
975 | /* Must be done before init_buffer */ |
976 | init_casetab_once (); | |
977 | init_buffer_once (); /* Create buffer table and some buffers */ | |
978 | init_minibuf_once (); /* Create list of minibuffers */ | |
979 | /* Must precede init_window_once */ | |
980 | init_window_once (); /* Init the window system */ | |
981 | } | |
982 | ||
983 | init_alloc (); | |
f927c5ae JB |
984 | init_eval (); |
985 | init_data (); | |
7074fde6 | 986 | running_asynch_code = 0; |
0e956009 | 987 | |
29b89fe0 RS |
988 | #ifdef MSDOS |
989 | /* Call early 'cause init_environment needs it. */ | |
990 | init_dosfns (); | |
991 | /* Set defaults for several environment variables. */ | |
18198bb2 RS |
992 | if (initialized) |
993 | init_environment (argc, argv, skip_args); | |
994 | else | |
d1fc6752 | 995 | tzset (); |
18198bb2 | 996 | #endif /* MSDOS */ |
29b89fe0 | 997 | |
8ba50e1a GV |
998 | #ifdef WINDOWSNT |
999 | /* Initialize environment from registry settings. */ | |
1000 | init_environment (); | |
41f339d4 | 1001 | init_ntproc (); /* must precede init_editfns */ |
8ba50e1a GV |
1002 | #endif |
1003 | ||
0e956009 JB |
1004 | /* egetenv is a pretty low-level facility, which may get called in |
1005 | many circumstances; it seems flimsy to put off initializing it | |
1006 | until calling init_callproc. */ | |
1007 | set_process_environment (); | |
93aed04d RS |
1008 | /* AIX crashes are reported in system versions 3.2.3 and 3.2.4 |
1009 | if this is not done. Do it after set_process_environment so that we | |
1010 | don't pollute Vprocess_environment. */ | |
1011 | #ifdef AIX | |
1012 | putenv ("LANG=C"); | |
1013 | #endif | |
0e956009 | 1014 | |
ace40a69 RS |
1015 | init_buffer (); /* Init default directory of main buffer */ |
1016 | ||
7928f0b5 | 1017 | init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */ |
ace40a69 | 1018 | init_cmdargs (argc, argv, skip_args); /* Must precede init_lread. */ |
380e25b8 RS |
1019 | |
1020 | if (initialized) | |
1021 | { | |
1022 | /* Erase any pre-dump messages in the message log, to avoid confusion */ | |
1023 | Lisp_Object old_log_max; | |
1024 | old_log_max = Vmessage_log_max; | |
1025 | XSETFASTINT (Vmessage_log_max, 0); | |
f6fe7bb5 | 1026 | message_dolog ("", 0, 1, 0); |
380e25b8 RS |
1027 | Vmessage_log_max = old_log_max; |
1028 | } | |
1029 | ||
7928f0b5 | 1030 | init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */ |
fb8e9847 | 1031 | init_lread (); |
f927c5ae | 1032 | |
f927c5ae JB |
1033 | if (!noninteractive) |
1034 | { | |
1035 | #ifdef VMS | |
1cbd5d9d | 1036 | init_vms_input ();/* init_display calls get_frame_size, that needs this */ |
f927c5ae JB |
1037 | #endif /* VMS */ |
1038 | init_display (); /* Determine terminal type. init_sys_modes uses results */ | |
1039 | } | |
1040 | init_keyboard (); /* This too must precede init_sys_modes */ | |
f927c5ae JB |
1041 | #ifdef VMS |
1042 | init_vmsproc (); /* And this too. */ | |
1043 | #endif /* VMS */ | |
1044 | init_sys_modes (); /* Init system terminal modes (RAW or CBREAK, etc.) */ | |
1045 | init_xdisp (); | |
1046 | init_macros (); | |
1047 | init_editfns (); | |
1048 | #ifdef LISP_FLOAT_TYPE | |
1049 | init_floatfns (); | |
1050 | #endif | |
1051 | #ifdef VMS | |
1052 | init_vmsfns (); | |
1053 | #endif /* VMS */ | |
f927c5ae | 1054 | init_process (); |
f927c5ae JB |
1055 | |
1056 | /* Intern the names of all standard functions and variables; define standard keys */ | |
1057 | ||
1058 | if (!initialized) | |
1059 | { | |
1060 | /* The basic levels of Lisp must come first */ | |
1061 | /* And data must come first of all | |
1062 | for the sake of symbols like error-message */ | |
1063 | syms_of_data (); | |
1064 | syms_of_alloc (); | |
fb8e9847 | 1065 | syms_of_lread (); |
f927c5ae JB |
1066 | syms_of_print (); |
1067 | syms_of_eval (); | |
1068 | syms_of_fns (); | |
f927c5ae | 1069 | syms_of_floatfns (); |
f927c5ae JB |
1070 | |
1071 | syms_of_abbrev (); | |
1072 | syms_of_buffer (); | |
1073 | syms_of_bytecode (); | |
1074 | syms_of_callint (); | |
1075 | syms_of_casefiddle (); | |
1076 | syms_of_casetab (); | |
1077 | syms_of_callproc (); | |
270ce821 KH |
1078 | syms_of_category (); |
1079 | syms_of_ccl (); | |
1080 | syms_of_charset (); | |
f927c5ae JB |
1081 | syms_of_cmds (); |
1082 | #ifndef NO_DIR_LIBRARY | |
1083 | syms_of_dired (); | |
1084 | #endif /* not NO_DIR_LIBRARY */ | |
1085 | syms_of_display (); | |
1086 | syms_of_doc (); | |
1087 | syms_of_editfns (); | |
1088 | syms_of_emacs (); | |
1089 | syms_of_fileio (); | |
270ce821 | 1090 | syms_of_coding (); /* This should be after syms_of_fileio. */ |
f927c5ae JB |
1091 | #ifdef CLASH_DETECTION |
1092 | syms_of_filelock (); | |
1093 | #endif /* CLASH_DETECTION */ | |
1094 | syms_of_indent (); | |
c2c5ed2c | 1095 | syms_of_insdel (); |
f927c5ae JB |
1096 | syms_of_keyboard (); |
1097 | syms_of_keymap (); | |
1098 | syms_of_macros (); | |
1099 | syms_of_marker (); | |
1100 | syms_of_minibuf (); | |
1101 | syms_of_mocklisp (); | |
f927c5ae | 1102 | syms_of_process (); |
f927c5ae | 1103 | syms_of_search (); |
1cbd5d9d | 1104 | syms_of_frame (); |
f927c5ae | 1105 | syms_of_syntax (); |
0d934e7b | 1106 | syms_of_term (); |
f927c5ae | 1107 | syms_of_undo (); |
bef79ee4 JA |
1108 | |
1109 | /* Only defined if Emacs is compiled with USE_TEXT_PROPERTIES */ | |
1110 | syms_of_textprop (); | |
f927c5ae JB |
1111 | #ifdef VMS |
1112 | syms_of_vmsproc (); | |
1113 | #endif /* VMS */ | |
05687c54 RS |
1114 | #ifdef WINDOWSNT |
1115 | syms_of_ntproc (); | |
1116 | #endif /* WINDOWSNT */ | |
f927c5ae JB |
1117 | syms_of_window (); |
1118 | syms_of_xdisp (); | |
1119 | #ifdef HAVE_X_WINDOWS | |
72412588 | 1120 | syms_of_xterm (); |
f927c5ae | 1121 | syms_of_xfns (); |
270ce821 | 1122 | syms_of_fontset (); |
72412588 JB |
1123 | #ifdef HAVE_X11 |
1124 | syms_of_xselect (); | |
1125 | #endif | |
f927c5ae JB |
1126 | #endif /* HAVE_X_WINDOWS */ |
1127 | ||
1e9c210b | 1128 | #ifndef HAVE_NTGUI |
dcdcce1a | 1129 | syms_of_xfaces (); |
6c850f3c | 1130 | syms_of_xmenu (); |
1e9c210b | 1131 | #endif |
6c850f3c | 1132 | |
8ba50e1a | 1133 | #ifdef HAVE_NTGUI |
fbd6baed GV |
1134 | syms_of_w32term (); |
1135 | syms_of_w32fns (); | |
1136 | syms_of_w32faces (); | |
1137 | syms_of_w32select (); | |
1138 | syms_of_w32menu (); | |
8ba50e1a GV |
1139 | #endif /* HAVE_NTGUI */ |
1140 | ||
f927c5ae JB |
1141 | #ifdef SYMS_SYSTEM |
1142 | SYMS_SYSTEM; | |
1143 | #endif | |
1144 | ||
1145 | #ifdef SYMS_MACHINE | |
1146 | SYMS_MACHINE; | |
1147 | #endif | |
1148 | ||
1149 | keys_of_casefiddle (); | |
1150 | keys_of_cmds (); | |
1151 | keys_of_buffer (); | |
1152 | keys_of_keyboard (); | |
1153 | keys_of_keymap (); | |
1154 | keys_of_macros (); | |
1155 | keys_of_minibuf (); | |
1156 | keys_of_window (); | |
5e67fbc2 | 1157 | keys_of_frame (); |
f927c5ae JB |
1158 | } |
1159 | ||
1160 | if (!initialized) | |
1161 | { | |
e2925360 | 1162 | char *file; |
f927c5ae | 1163 | /* Handle -l loadup-and-dump, args passed by Makefile. */ |
df6530f8 | 1164 | if (argmatch (argv, argc, "-l", "--load", 3, &file, &skip_args)) |
f927c5ae | 1165 | Vtop_level = Fcons (intern ("load"), |
e2925360 | 1166 | Fcons (build_string (file), Qnil)); |
f927c5ae JB |
1167 | #ifdef CANNOT_DUMP |
1168 | /* Unless next switch is -nl, load "loadup.el" first thing. */ | |
df6530f8 | 1169 | if (!argmatch (argv, argc, "-nl", "--no-loadup", 6, NULL, &skip_args)) |
f927c5ae JB |
1170 | Vtop_level = Fcons (intern ("load"), |
1171 | Fcons (build_string ("loadup.el"), Qnil)); | |
1172 | #endif /* CANNOT_DUMP */ | |
1173 | } | |
1174 | ||
93572b43 KH |
1175 | if (initialized) |
1176 | { | |
0269dedb RS |
1177 | #ifdef HAVE_TZSET |
1178 | { | |
1179 | /* If the execution TZ happens to be the same as the dump TZ, | |
1180 | change it to some other value and then change it back, | |
1181 | to force the underlying implementation to reload the TZ info. | |
1182 | This is needed on implementations that load TZ info from files, | |
1183 | since the TZ file contents may differ between dump and execution. */ | |
1184 | char *tz = getenv ("TZ"); | |
1185 | if (tz && !strcmp (tz, dump_tz)) | |
1186 | { | |
1187 | ++*tz; | |
1188 | tzset (); | |
1189 | --*tz; | |
1190 | } | |
1191 | } | |
1192 | #endif | |
93572b43 KH |
1193 | } |
1194 | ||
e610ea43 RS |
1195 | /* Gerd Moellmann <gerd@acm.org> says this makes profiling work on |
1196 | FreeBSD. It might work on some other systems too. | |
1197 | Give it a try and tell me if it works on your system. */ | |
1198 | #ifdef __FreeBSD__ | |
1199 | #ifdef PROFILING | |
1200 | if (initialized) | |
1201 | { | |
1202 | extern void _mcleanup (); | |
1203 | extern char etext; | |
b063fa35 | 1204 | extern Lisp_Object Fredraw_frame (); |
e610ea43 | 1205 | atexit (_mcleanup); |
8b64df46 RS |
1206 | /* This uses Fredraw_frame because that function |
1207 | comes first in the Emacs executable. | |
1208 | It might be better to use something that gives | |
1209 | the start of the text segment, but start_of_text | |
1210 | is not defined on all systems now. */ | |
b063fa35 | 1211 | monstartup (Fredraw_frame, &etext); |
e610ea43 RS |
1212 | } |
1213 | else | |
1214 | moncontrol (0); | |
1215 | #endif | |
1216 | #endif | |
1217 | ||
f927c5ae JB |
1218 | initialized = 1; |
1219 | ||
e7536cff RS |
1220 | #ifdef LOCALTIME_CACHE |
1221 | /* Some versions of localtime have a bug. They cache the value of the time | |
279cc2b8 JB |
1222 | zone rather than looking it up every time. Since localtime() is |
1223 | called to bolt the undumping time into the undumped emacs, this | |
afe9fae9 RS |
1224 | results in localtime ignoring the TZ environment variable. |
1225 | This flushes the new TZ value into localtime. */ | |
1226 | tzset (); | |
e7536cff | 1227 | #endif /* defined (LOCALTIME_CACHE) */ |
279cc2b8 | 1228 | |
f927c5ae JB |
1229 | /* Enter editor command loop. This never returns. */ |
1230 | Frecursive_edit (); | |
1231 | /* NOTREACHED */ | |
1232 | } | |
1233 | \f | |
081bef73 RS |
1234 | /* Sort the args so we can find the most important ones |
1235 | at the beginning of argv. */ | |
1236 | ||
1237 | /* First, here's a table of all the standard options. */ | |
1238 | ||
1239 | struct standard_args | |
1240 | { | |
1241 | char *name; | |
1242 | char *longname; | |
1243 | int priority; | |
1244 | int nargs; | |
1245 | }; | |
1246 | ||
1247 | struct standard_args standard_args[] = | |
1248 | { | |
221cbd7d RS |
1249 | { "-version", "--version", 110, 0 }, |
1250 | { "-help", "--help", 110, 0 }, | |
081bef73 | 1251 | { "-nl", "--no-shared-memory", 100, 0 }, |
2725719a | 1252 | #ifdef VMS |
081bef73 | 1253 | { "-map", "--map-data", 100, 0 }, |
2725719a | 1254 | #endif |
0b9f07b9 | 1255 | { "-unibyte", "--unibyte", 95, 0 }, |
081bef73 RS |
1256 | { "-t", "--terminal", 90, 1 }, |
1257 | { "-d", "--display", 80, 1 }, | |
1258 | { "-display", 0, 80, 1 }, | |
1259 | { "-nw", "--no-windows", 70, 0 }, | |
1260 | { "-batch", "--batch", 60, 0 }, | |
1261 | { "-q", "--no-init-file", 50, 0 }, | |
1262 | { "-no-init-file", 0, 50, 0 }, | |
1263 | { "-no-site-file", "--no-site-file", 40, 0 }, | |
1264 | { "-u", "--user", 30, 1 }, | |
1265 | { "-user", 0, 30, 1 }, | |
1266 | { "-debug-init", "--debug-init", 20, 0 }, | |
adab4483 KH |
1267 | { "-i", "--icon-type", 15, 0 }, |
1268 | { "-itype", 0, 15, 0 }, | |
f2bc3538 | 1269 | { "-iconic", "--iconic", 15, 0 }, |
081bef73 RS |
1270 | { "-bg", "--background-color", 10, 1 }, |
1271 | { "-background", 0, 10, 1 }, | |
1272 | { "-fg", "--foreground-color", 10, 1 }, | |
1273 | { "-foreground", 0, 10, 1 }, | |
1274 | { "-bd", "--border-color", 10, 1 }, | |
1275 | { "-bw", "--border-width", 10, 1 }, | |
1276 | { "-ib", "--internal-border", 10, 1 }, | |
1277 | { "-ms", "--mouse-color", 10, 1 }, | |
1278 | { "-cr", "--cursor-color", 10, 1 }, | |
1279 | { "-fn", "--font", 10, 1 }, | |
1280 | { "-font", 0, 10, 1 }, | |
1281 | { "-g", "--geometry", 10, 1 }, | |
1282 | { "-geometry", 0, 10, 1 }, | |
1283 | { "-T", "--title", 10, 1 }, | |
ae63ae52 | 1284 | { "-title", 0, 10, 1 }, |
081bef73 RS |
1285 | { "-name", "--name", 10, 1 }, |
1286 | { "-xrm", "--xrm", 10, 1 }, | |
fcdeb5d9 RS |
1287 | { "-r", "--reverse-video", 5, 0 }, |
1288 | { "-rv", 0, 5, 0 }, | |
1289 | { "-reverse", 0, 5, 0 }, | |
ae63ae52 | 1290 | { "-hb", "--horizontal-scroll-bars", 5, 0 }, |
fcdeb5d9 | 1291 | { "-vb", "--vertical-scroll-bars", 5, 0 }, |
fcdeb5d9 RS |
1292 | /* These have the same priority as ordinary file name args, |
1293 | so they are not reordered with respect to those. */ | |
4af9e0b3 RS |
1294 | { "-L", "--directory", 0, 1 }, |
1295 | { "-directory", 0, 0, 1 }, | |
fcdeb5d9 RS |
1296 | { "-l", "--load", 0, 1 }, |
1297 | { "-load", 0, 0, 1 }, | |
1298 | { "-f", "--funcall", 0, 1 }, | |
1299 | { "-funcall", 0, 0, 1 }, | |
575985b1 | 1300 | { "-eval", "--eval", 0, 1 }, |
2e13f8e9 RS |
1301 | { "-find-file", "--find-file", 0, 1 }, |
1302 | { "-visit", "--visit", 0, 1 }, | |
fcdeb5d9 | 1303 | { "-insert", "--insert", 0, 1 }, |
f2bc3538 | 1304 | /* This should be processed after ordinary file name args and the like. */ |
fcdeb5d9 | 1305 | { "-kill", "--kill", -10, 0 }, |
081bef73 RS |
1306 | }; |
1307 | ||
1308 | /* Reorder the elements of ARGV (assumed to have ARGC elements) | |
1309 | so that the highest priority ones come first. | |
1310 | Do not change the order of elements of equal priority. | |
1311 | If an option takes an argument, keep it and its argument together. */ | |
1312 | ||
1313 | static void | |
1314 | sort_args (argc, argv) | |
1315 | int argc; | |
1316 | char **argv; | |
1317 | { | |
1318 | char **new = (char **) xmalloc (sizeof (char *) * argc); | |
1319 | /* For each element of argv, | |
1320 | the corresponding element of options is: | |
1321 | 0 for an option that takes no arguments, | |
1322 | 1 for an option that takes one argument, etc. | |
1323 | -1 for an ordinary non-option argument. */ | |
6dad9359 | 1324 | int *options = (int *) xmalloc (sizeof (int) * argc); |
081bef73 RS |
1325 | int *priority = (int *) xmalloc (sizeof (int) * argc); |
1326 | int to = 1; | |
1327 | int from; | |
1328 | int i; | |
c96f26f4 | 1329 | int end_of_options = argc; |
081bef73 RS |
1330 | |
1331 | /* Categorize all the options, | |
1332 | and figure out which argv elts are option arguments. */ | |
1333 | for (from = 1; from < argc; from++) | |
1334 | { | |
1335 | options[from] = -1; | |
fcdeb5d9 | 1336 | priority[from] = 0; |
081bef73 RS |
1337 | if (argv[from][0] == '-') |
1338 | { | |
1339 | int match, thislen; | |
1340 | char *equals; | |
1341 | ||
c96f26f4 RS |
1342 | /* If we have found "--", don't consider |
1343 | any more arguments as options. */ | |
249443b6 | 1344 | if (argv[from][1] == '-' && argv[from][2] == 0) |
c96f26f4 RS |
1345 | { |
1346 | /* Leave the "--", and everything following it, at the end. */ | |
1347 | for (; from < argc; from++) | |
1348 | { | |
1349 | priority[from] = -100; | |
1350 | options[from] = -1; | |
1351 | } | |
1352 | break; | |
1353 | } | |
1354 | ||
081bef73 RS |
1355 | /* Look for a match with a known old-fashioned option. */ |
1356 | for (i = 0; i < sizeof (standard_args) / sizeof (standard_args[0]); i++) | |
1357 | if (!strcmp (argv[from], standard_args[i].name)) | |
1358 | { | |
1359 | options[from] = standard_args[i].nargs; | |
1360 | priority[from] = standard_args[i].priority; | |
fd76ec52 RS |
1361 | if (from + standard_args[i].nargs >= argc) |
1362 | fatal ("Option `%s' requires an argument\n", argv[from]); | |
081bef73 RS |
1363 | from += standard_args[i].nargs; |
1364 | goto done; | |
1365 | } | |
1366 | ||
1367 | /* Look for a match with a known long option. | |
1368 | MATCH is -1 if no match so far, -2 if two or more matches so far, | |
1369 | >= 0 (the table index of the match) if just one match so far. */ | |
1370 | if (argv[from][1] == '-') | |
1371 | { | |
1372 | match = -1; | |
1373 | thislen = strlen (argv[from]); | |
1374 | equals = index (argv[from], '='); | |
1375 | if (equals != 0) | |
1376 | thislen = equals - argv[from]; | |
1377 | ||
f609ef57 KH |
1378 | for (i = 0; |
1379 | i < sizeof (standard_args) / sizeof (standard_args[0]); i++) | |
1380 | if (standard_args[i].longname | |
1381 | && !strncmp (argv[from], standard_args[i].longname, | |
1382 | thislen)) | |
081bef73 RS |
1383 | { |
1384 | if (match == -1) | |
1385 | match = i; | |
1386 | else | |
1387 | match = -2; | |
1388 | } | |
1389 | ||
1390 | /* If we found exactly one match, use that. */ | |
1391 | if (match >= 0) | |
1392 | { | |
1393 | options[from] = standard_args[match].nargs; | |
1394 | priority[from] = standard_args[match].priority; | |
1395 | /* If --OPTION=VALUE syntax is used, | |
1396 | this option uses just one argv element. */ | |
1397 | if (equals != 0) | |
1398 | options[from] = 0; | |
fd76ec52 RS |
1399 | if (from + options[from] >= argc) |
1400 | fatal ("Option `%s' requires an argument\n", argv[from]); | |
081bef73 RS |
1401 | from += options[from]; |
1402 | } | |
1403 | } | |
1404 | done: ; | |
1405 | } | |
1406 | } | |
1407 | ||
1408 | /* Copy the arguments, in order of decreasing priority, to NEW. */ | |
1409 | new[0] = argv[0]; | |
1410 | while (to < argc) | |
1411 | { | |
1412 | int best = -1; | |
2c70c992 | 1413 | int best_priority = -9999; |
081bef73 RS |
1414 | |
1415 | /* Find the highest priority remaining option. | |
1416 | If several have equal priority, take the first of them. */ | |
1417 | for (from = 1; from < argc; from++) | |
1418 | { | |
1419 | if (argv[from] != 0 && priority[from] > best_priority) | |
1420 | { | |
1421 | best_priority = priority[from]; | |
1422 | best = from; | |
1423 | } | |
1424 | /* Skip option arguments--they are tied to the options. */ | |
1425 | if (options[from] > 0) | |
1426 | from += options[from]; | |
1427 | } | |
1428 | ||
1429 | if (best < 0) | |
1430 | abort (); | |
1431 | ||
1432 | /* Copy the highest priority remaining option, with its args, to NEW. */ | |
1433 | new[to++] = argv[best]; | |
1434 | for (i = 0; i < options[best]; i++) | |
1435 | new[to++] = argv[best + i + 1]; | |
1436 | ||
1437 | /* Clear out this option in ARGV. */ | |
1438 | argv[best] = 0; | |
1439 | for (i = 0; i < options[best]; i++) | |
1440 | argv[best + i + 1] = 0; | |
1441 | } | |
1442 | ||
6dad9359 | 1443 | bcopy (new, argv, sizeof (char *) * argc); |
0bf591da RS |
1444 | |
1445 | free (options); | |
1446 | free (new); | |
1447 | free (priority); | |
081bef73 RS |
1448 | } |
1449 | \f | |
f927c5ae | 1450 | DEFUN ("kill-emacs", Fkill_emacs, Skill_emacs, 0, 1, "P", |
edc8ae07 | 1451 | "Exit the Emacs job and kill it.\n\ |
f927c5ae JB |
1452 | If ARG is an integer, return ARG as the exit program code.\n\ |
1453 | If ARG is a string, stuff it as keyboard input.\n\n\ | |
1454 | The value of `kill-emacs-hook', if not void,\n\ | |
1455 | is a list of functions (of no args),\n\ | |
1456 | all of which are called before Emacs is actually killed.") | |
1457 | (arg) | |
1458 | Lisp_Object arg; | |
1459 | { | |
1460 | Lisp_Object hook, hook1; | |
1461 | int i; | |
1462 | struct gcpro gcpro1; | |
1463 | ||
1464 | GCPRO1 (arg); | |
1465 | ||
1466 | if (feof (stdin)) | |
1467 | arg = Qt; | |
1468 | ||
2447c626 | 1469 | if (!NILP (Vrun_hooks) && !noninteractive) |
f927c5ae JB |
1470 | call1 (Vrun_hooks, intern ("kill-emacs-hook")); |
1471 | ||
f927c5ae JB |
1472 | UNGCPRO; |
1473 | ||
1474 | /* Is it really necessary to do this deassign | |
1475 | when we are going to exit anyway? */ | |
1476 | /* #ifdef VMS | |
1477 | stop_vms_input (); | |
1478 | #endif */ | |
40be253a | 1479 | |
d0068e25 | 1480 | shut_down_emacs (0, 0, STRINGP (arg) ? arg : Qnil); |
40be253a | 1481 | |
58545838 KH |
1482 | /* If we have an auto-save list file, |
1483 | kill it because we are exiting Emacs deliberately (not crashing). | |
1484 | Do it after shut_down_emacs, which does an auto-save. */ | |
1485 | if (STRINGP (Vauto_save_list_file_name)) | |
1486 | unlink (XSTRING (Vauto_save_list_file_name)->data); | |
1487 | ||
55ccc0b3 | 1488 | exit (INTEGERP (arg) ? XINT (arg) |
f927c5ae JB |
1489 | #ifdef VMS |
1490 | : 1 | |
1491 | #else | |
1492 | : 0 | |
1493 | #endif | |
1494 | ); | |
1495 | /* NOTREACHED */ | |
1496 | } | |
40be253a JB |
1497 | |
1498 | ||
1499 | /* Perform an orderly shutdown of Emacs. Autosave any modified | |
1500 | buffers, kill any child processes, clean up the terminal modes (if | |
1501 | we're in the foreground), and other stuff like that. Don't perform | |
1502 | any redisplay; this may be called when Emacs is shutting down in | |
1503 | the background, or after its X connection has died. | |
1504 | ||
1505 | If SIG is a signal number, print a message for it. | |
1506 | ||
1507 | This is called by fatal signal handlers, X protocol error handlers, | |
1508 | and Fkill_emacs. */ | |
f7ab4e3d | 1509 | |
40be253a | 1510 | void |
f7ab4e3d | 1511 | shut_down_emacs (sig, no_x, stuff) |
41423a80 | 1512 | int sig, no_x; |
f7ab4e3d | 1513 | Lisp_Object stuff; |
40be253a | 1514 | { |
829d872b RS |
1515 | /* Prevent running of hooks from now on. */ |
1516 | Vrun_hooks = Qnil; | |
1517 | ||
40be253a JB |
1518 | /* If we are controlling the terminal, reset terminal modes */ |
1519 | #ifdef EMACS_HAVE_TTY_PGRP | |
1520 | { | |
d04d81d2 RS |
1521 | int pgrp = EMACS_GETPGRP (0); |
1522 | ||
40be253a JB |
1523 | int tpgrp; |
1524 | if (EMACS_GET_TTY_PGRP (0, &tpgrp) != -1 | |
5a570e37 | 1525 | && tpgrp == pgrp) |
40be253a JB |
1526 | { |
1527 | fflush (stdout); | |
1528 | reset_sys_modes (); | |
1529 | if (sig && sig != SIGTERM) | |
1530 | fprintf (stderr, "Fatal error (%d).", sig); | |
1531 | } | |
1532 | } | |
1533 | #else | |
1534 | fflush (stdout); | |
1535 | reset_sys_modes (); | |
1536 | #endif | |
1537 | ||
f7ab4e3d RS |
1538 | stuff_buffered_input (stuff); |
1539 | ||
40be253a JB |
1540 | kill_buffer_processes (Qnil); |
1541 | Fdo_auto_save (Qt, Qnil); | |
1542 | ||
1543 | #ifdef CLASH_DETECTION | |
1544 | unlock_all_files (); | |
1545 | #endif | |
1546 | ||
1547 | #ifdef VMS | |
1548 | kill_vms_processes (); | |
1549 | #endif | |
1550 | ||
5e7f8733 | 1551 | #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */ |
41423a80 | 1552 | #ifdef HAVE_X_WINDOWS |
f7511647 RS |
1553 | /* It's not safe to call intern here. Maybe we are crashing. */ |
1554 | if (!noninteractive && SYMBOLP (Vwindow_system) | |
1555 | && XSYMBOL (Vwindow_system)->name->size == 1 | |
1556 | && XSYMBOL (Vwindow_system)->name->data[0] == 'x' | |
1557 | && ! no_x) | |
41423a80 RS |
1558 | Fx_close_current_connection (); |
1559 | #endif /* HAVE_X_WINDOWS */ | |
5e7f8733 | 1560 | #endif |
41423a80 | 1561 | |
40be253a JB |
1562 | #ifdef SIGIO |
1563 | /* There is a tendency for a SIGIO signal to arrive within exit, | |
1564 | and cause a SIGHUP because the input descriptor is already closed. */ | |
1565 | unrequest_sigio (); | |
1566 | signal (SIGIO, SIG_IGN); | |
1567 | #endif | |
41f339d4 RS |
1568 | |
1569 | #ifdef WINDOWSNT | |
1570 | term_ntproc (); | |
1571 | #endif | |
d546e578 EZ |
1572 | |
1573 | #ifdef MSDOS | |
1574 | dos_cleanup (); | |
1575 | #endif | |
40be253a JB |
1576 | } |
1577 | ||
1578 | ||
f927c5ae JB |
1579 | \f |
1580 | #ifndef CANNOT_DUMP | |
f927c5ae JB |
1581 | |
1582 | #ifdef HAVE_SHM | |
1583 | ||
1584 | DEFUN ("dump-emacs-data", Fdump_emacs_data, Sdump_emacs_data, 1, 1, 0, | |
1585 | "Dump current state of Emacs into data file FILENAME.\n\ | |
1586 | This function exists on systems that use HAVE_SHM.") | |
c9aae259 EN |
1587 | (filename) |
1588 | Lisp_Object filename; | |
f927c5ae | 1589 | { |
55697f5b | 1590 | extern char my_edata[]; |
f927c5ae | 1591 | Lisp_Object tem; |
f927c5ae | 1592 | |
c9aae259 EN |
1593 | CHECK_STRING (filename, 0); |
1594 | filename = Fexpand_file_name (filename, Qnil); | |
f927c5ae JB |
1595 | |
1596 | tem = Vpurify_flag; | |
1597 | Vpurify_flag = Qnil; | |
1598 | ||
1599 | fflush (stdout); | |
1600 | /* Tell malloc where start of impure now is */ | |
1601 | /* Also arrange for warnings when nearly out of space. */ | |
1602 | #ifndef SYSTEM_MALLOC | |
1090a161 | 1603 | memory_warnings (my_edata, malloc_warning); |
f927c5ae | 1604 | #endif |
c9aae259 | 1605 | map_out_data (XSTRING (filename)->data); |
f927c5ae JB |
1606 | |
1607 | Vpurify_flag = tem; | |
1608 | ||
1609 | return Qnil; | |
1610 | } | |
1611 | ||
1612 | #else /* not HAVE_SHM */ | |
1613 | ||
1614 | DEFUN ("dump-emacs", Fdump_emacs, Sdump_emacs, 2, 2, 0, | |
1615 | "Dump current state of Emacs into executable file FILENAME.\n\ | |
1616 | Take symbols from SYMFILE (presumably the file you executed to run Emacs).\n\ | |
1617 | This is used in the file `loadup.el' when building Emacs.\n\ | |
1618 | \n\ | |
87a98b1a | 1619 | You must run Emacs in batch mode in order to dump it.") |
c9aae259 EN |
1620 | (filename, symfile) |
1621 | Lisp_Object filename, symfile; | |
f927c5ae | 1622 | { |
55697f5b | 1623 | extern char my_edata[]; |
f927c5ae | 1624 | Lisp_Object tem; |
1b7ddf4f RS |
1625 | Lisp_Object symbol; |
1626 | int count = specpdl_ptr - specpdl; | |
f927c5ae | 1627 | |
87a98b1a RS |
1628 | if (! noninteractive) |
1629 | error ("Dumping Emacs works only in batch mode"); | |
1630 | ||
1b7ddf4f RS |
1631 | /* Bind `command-line-processed' to nil before dumping, |
1632 | so that the dumped Emacs will process its command line | |
1633 | and set up to work with X windows if appropriate. */ | |
1634 | symbol = intern ("command-line-process"); | |
1635 | specbind (symbol, Qnil); | |
1636 | ||
c9aae259 EN |
1637 | CHECK_STRING (filename, 0); |
1638 | filename = Fexpand_file_name (filename, Qnil); | |
1639 | if (!NILP (symfile)) | |
f927c5ae | 1640 | { |
c9aae259 EN |
1641 | CHECK_STRING (symfile, 0); |
1642 | if (XSTRING (symfile)->size) | |
1643 | symfile = Fexpand_file_name (symfile, Qnil); | |
f927c5ae JB |
1644 | } |
1645 | ||
1646 | tem = Vpurify_flag; | |
1647 | Vpurify_flag = Qnil; | |
1648 | ||
0269dedb RS |
1649 | #ifdef HAVE_TZSET |
1650 | set_time_zone_rule (dump_tz); | |
1651 | #ifndef LOCALTIME_CACHE | |
1652 | /* Force a tz reload, since set_time_zone_rule doesn't. */ | |
1653 | tzset (); | |
1654 | #endif | |
1655 | #endif | |
1656 | ||
f927c5ae JB |
1657 | fflush (stdout); |
1658 | #ifdef VMS | |
c9aae259 | 1659 | mapout_data (XSTRING (filename)->data); |
f927c5ae JB |
1660 | #else |
1661 | /* Tell malloc where start of impure now is */ | |
1662 | /* Also arrange for warnings when nearly out of space. */ | |
1663 | #ifndef SYSTEM_MALLOC | |
cc5f52cb RS |
1664 | #ifndef WINDOWSNT |
1665 | /* On Windows, this was done before dumping, and that once suffices. | |
1666 | Meanwhile, my_edata is not valid on Windows. */ | |
cb37cf78 | 1667 | memory_warnings (my_edata, malloc_warning); |
cc5f52cb | 1668 | #endif /* not WINDOWSNT */ |
15aaf1b5 RS |
1669 | #endif |
1670 | #ifdef DOUG_LEA_MALLOC | |
1671 | malloc_state_ptr = malloc_get_state (); | |
f927c5ae | 1672 | #endif |
c9aae259 EN |
1673 | unexec (XSTRING (filename)->data, |
1674 | !NILP (symfile) ? XSTRING (symfile)->data : 0, my_edata, 0, 0); | |
15aaf1b5 RS |
1675 | #ifdef DOUG_LEA_MALLOC |
1676 | free (malloc_state_ptr); | |
1677 | #endif | |
f927c5ae JB |
1678 | #endif /* not VMS */ |
1679 | ||
1680 | Vpurify_flag = tem; | |
1681 | ||
1b7ddf4f | 1682 | return unbind_to (count, Qnil); |
f927c5ae JB |
1683 | } |
1684 | ||
1685 | #endif /* not HAVE_SHM */ | |
1686 | ||
1687 | #endif /* not CANNOT_DUMP */ | |
1688 | \f | |
4b163808 | 1689 | #ifndef SEPCHAR |
f927c5ae JB |
1690 | #define SEPCHAR ':' |
1691 | #endif | |
1692 | ||
1693 | Lisp_Object | |
1694 | decode_env_path (evarname, defalt) | |
1695 | char *evarname, *defalt; | |
1696 | { | |
1697 | register char *path, *p; | |
213d0b1f | 1698 | Lisp_Object lpath, element, tem; |
f927c5ae | 1699 | |
2447c626 JB |
1700 | /* It's okay to use getenv here, because this function is only used |
1701 | to initialize variables when Emacs starts up, and isn't called | |
1702 | after that. */ | |
e065a56e JB |
1703 | if (evarname != 0) |
1704 | path = (char *) getenv (evarname); | |
1705 | else | |
1706 | path = 0; | |
f927c5ae JB |
1707 | if (!path) |
1708 | path = defalt; | |
6a30e6d6 RS |
1709 | #ifdef DOS_NT |
1710 | /* Ensure values from the environment use the proper directory separator. */ | |
1711 | if (path) | |
1712 | { | |
1713 | p = alloca (strlen (path) + 1); | |
1714 | strcpy (p, path); | |
1715 | path = p; | |
1716 | ||
1717 | if ('/' == DIRECTORY_SEP) | |
1718 | dostounix_filename (path); | |
1719 | else | |
1720 | unixtodos_filename (path); | |
1721 | } | |
1722 | #endif | |
f927c5ae JB |
1723 | lpath = Qnil; |
1724 | while (1) | |
1725 | { | |
1726 | p = index (path, SEPCHAR); | |
1727 | if (!p) p = path + strlen (path); | |
213d0b1f RS |
1728 | element = (p - path ? make_string (path, p - path) |
1729 | : build_string (".")); | |
1730 | ||
1731 | /* Add /: to the front of the name | |
1732 | if it would otherwise be treated as magic. */ | |
1733 | tem = Ffind_file_name_handler (element, Qt); | |
1734 | if (! NILP (tem)) | |
1735 | element = concat2 (build_string ("/:"), element); | |
1736 | ||
1737 | lpath = Fcons (element, lpath); | |
f927c5ae JB |
1738 | if (*p) |
1739 | path = p + 1; | |
1740 | else | |
1741 | break; | |
1742 | } | |
1743 | return Fnreverse (lpath); | |
1744 | } | |
1745 | ||
dfcf069d | 1746 | void |
f927c5ae JB |
1747 | syms_of_emacs () |
1748 | { | |
213d0b1f RS |
1749 | Qfile_name_handler_alist = intern ("file-name-handler-alist"); |
1750 | staticpro (&Qfile_name_handler_alist); | |
1751 | ||
83591e66 | 1752 | #ifndef CANNOT_DUMP |
f927c5ae JB |
1753 | #ifdef HAVE_SHM |
1754 | defsubr (&Sdump_emacs_data); | |
1755 | #else | |
1756 | defsubr (&Sdump_emacs); | |
83591e66 | 1757 | #endif |
f927c5ae JB |
1758 | #endif |
1759 | ||
1760 | defsubr (&Skill_emacs); | |
1761 | ||
59653951 | 1762 | defsubr (&Sinvocation_name); |
ace40a69 | 1763 | defsubr (&Sinvocation_directory); |
59653951 | 1764 | |
f927c5ae JB |
1765 | DEFVAR_LISP ("command-line-args", &Vcommand_line_args, |
1766 | "Args passed by shell to Emacs, as a list of strings."); | |
1767 | ||
1768 | DEFVAR_LISP ("system-type", &Vsystem_type, | |
1769 | "Value is symbol indicating type of operating system you are using."); | |
1770 | Vsystem_type = intern (SYSTEM_TYPE); | |
1771 | ||
271c7b7c RS |
1772 | DEFVAR_LISP ("system-configuration", &Vsystem_configuration, |
1773 | "Value is string indicating configuration Emacs was built for."); | |
f7511647 | 1774 | Vsystem_configuration = build_string (EMACS_CONFIGURATION); |
271c7b7c | 1775 | |
f0fc0b1a KH |
1776 | DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options, |
1777 | "String containing the configuration options Emacs was built with."); | |
1778 | Vsystem_configuration_options = build_string (EMACS_CONFIG_OPTIONS); | |
1779 | ||
f927c5ae JB |
1780 | DEFVAR_BOOL ("noninteractive", &noninteractive1, |
1781 | "Non-nil means Emacs is running without interactive terminal."); | |
e5d77022 | 1782 | |
e5d77022 | 1783 | DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook, |
edc8ae07 JB |
1784 | "Hook to be run whenever kill-emacs is called.\n\ |
1785 | Since kill-emacs may be invoked when the terminal is disconnected (or\n\ | |
1786 | in other similar situations), functions placed on this hook should not\n\ | |
9f232a5d RS |
1787 | expect to be able to interact with the user. To ask for confirmation,\n\ |
1788 | see `kill-emacs-query-functions' instead."); | |
edc8ae07 | 1789 | Vkill_emacs_hook = Qnil; |
3005da00 | 1790 | |
7317d9e8 RS |
1791 | #ifdef SIGUSR1 |
1792 | DEFVAR_LISP ("signal-USR1-hook", &Vsignal_USR1_hook, | |
1793 | "Hook to be run whenever emacs recieves a USR1 signal"); | |
1794 | Vsignal_USR1_hook = Qnil; | |
1795 | #ifdef SIGUSR2 | |
1796 | DEFVAR_LISP ("signal-USR2-hook", &Vsignal_USR2_hook, | |
1797 | "Hook to be run whenever emacs recieves a USR2 signal"); | |
1798 | Vsignal_USR2_hook = Qnil; | |
1799 | #endif | |
1800 | #endif | |
1801 | ||
1802 | ||
3005da00 RS |
1803 | DEFVAR_INT ("emacs-priority", &emacs_priority, |
1804 | "Priority for Emacs to run at.\n\ | |
1805 | This value is effective only if set before Emacs is dumped,\n\ | |
1806 | and only if the Emacs executable is installed with setuid to permit\n\ | |
621ecf99 | 1807 | it to change priority. (Emacs sets its uid back to the real uid.)\n\ |
a422068f | 1808 | Currently, you need to define SET_EMACS_PRIORITY in `config.h'\n\ |
ce305b11 | 1809 | before you compile Emacs, to enable the code for this feature."); |
3005da00 | 1810 | emacs_priority = 0; |
59653951 | 1811 | |
f67de86f RS |
1812 | DEFVAR_LISP ("invocation-name", &Vinvocation_name, |
1813 | "The program name that was used to run Emacs.\n\ | |
1814 | Any directory names are omitted."); | |
1815 | ||
1816 | DEFVAR_LISP ("invocation-directory", &Vinvocation_directory, | |
1817 | "The directory in which the Emacs executable was found, to run it.\n\ | |
1818 | The value is nil if that directory's name is not known."); | |
1819 | ||
1820 | DEFVAR_LISP ("installation-directory", &Vinstallation_directory, | |
1821 | "A directory within which to look for the `lib-src' and `etc' directories.\n\ | |
1822 | This is non-nil when we can't find those directories in their standard\n\ | |
1823 | installed locations, but we can find them\n\ | |
1824 | near where the Emacs executable was found."); | |
07f4d123 | 1825 | Vinstallation_directory = Qnil; |
f927c5ae | 1826 | } |