Commit | Line | Data |
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f927c5ae | 1 | /* Fully extensible Emacs, running on Unix, intended for GNU. |
f8c25f1b | 2 | Copyright (C) 1985, 86, 87, 93, 94, 95 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" |
a41f8bed | 47 | |
53c58b5d RS |
48 | #ifdef HAVE_SETRLIMIT |
49 | #include <sys/time.h> | |
50 | #include <sys/resource.h> | |
51 | #endif | |
52 | ||
f927c5ae JB |
53 | #ifndef O_RDWR |
54 | #define O_RDWR 2 | |
55 | #endif | |
56 | ||
43165242 | 57 | extern void malloc_warning (); |
0269dedb | 58 | extern void set_time_zone_rule (); |
43165242 KH |
59 | extern char *index (); |
60 | extern char *strerror (); | |
61 | ||
f927c5ae JB |
62 | /* Command line args from shell, as list of strings */ |
63 | Lisp_Object Vcommand_line_args; | |
64 | ||
59653951 JB |
65 | /* The name under which Emacs was invoked, with any leading directory |
66 | names discarded. */ | |
67 | Lisp_Object Vinvocation_name; | |
68 | ||
ace40a69 RS |
69 | /* The directory name from which Emacs was invoked. */ |
70 | Lisp_Object Vinvocation_directory; | |
71 | ||
07f4d123 RS |
72 | /* The directory name in which to find subdirs such as lisp and etc. |
73 | nil means get them only from PATH_LOADSEARCH. */ | |
74 | Lisp_Object Vinstallation_directory; | |
75 | ||
e5d77022 JB |
76 | /* Hook run by `kill-emacs' before it does really anything. */ |
77 | Lisp_Object Vkill_emacs_hook; | |
78 | ||
7317d9e8 RS |
79 | #ifdef SIGUSR1 |
80 | /* Hooks for signal USR1 and USR2 handing */ | |
81 | Lisp_Object Vsignal_USR1_hook; | |
82 | #ifdef SIGUSR2 | |
83 | Lisp_Object Vsignal_USR2_hook; | |
84 | #endif | |
85 | #endif | |
86 | ||
f927c5ae JB |
87 | /* Set nonzero after Emacs has started up the first time. |
88 | Prevents reinitialization of the Lisp world and keymaps | |
89 | on subsequent starts. */ | |
90 | int initialized; | |
91 | ||
15aaf1b5 RS |
92 | #ifdef DOUG_LEA_MALLOC |
93 | /* Preserves a pointer to the memory allocated that copies that | |
94 | static data inside glibc's malloc. */ | |
95 | void *malloc_state_ptr; | |
96 | /* From glibc, a routine that returns a copy of the malloc internal state. */ | |
97 | extern void *malloc_get_state (); | |
98 | /* From glibc, a routine that overwrites the malloc internal state. */ | |
99 | extern void malloc_set_state (); | |
100 | #endif | |
101 | ||
271c7b7c | 102 | /* Variable whose value is symbol giving operating system type. */ |
f927c5ae | 103 | Lisp_Object Vsystem_type; |
271c7b7c RS |
104 | |
105 | /* Variable whose value is string giving configuration built for. */ | |
106 | Lisp_Object Vsystem_configuration; | |
f0fc0b1a KH |
107 | |
108 | /* Variable whose value is string giving configuration options, | |
109 | for use when reporting bugs. */ | |
110 | Lisp_Object Vsystem_configuration_options; | |
111 | ||
213d0b1f RS |
112 | Lisp_Object Qfile_name_handler_alist; |
113 | ||
f927c5ae JB |
114 | /* If non-zero, emacs should not attempt to use an window-specific code, |
115 | but instead should use the virtual terminal under which it was started */ | |
116 | int inhibit_window_system; | |
117 | ||
5aa7f46a JB |
118 | /* If nonzero, set Emacs to run at this priority. This is also used |
119 | in child_setup and sys_suspend to make sure subshells run at normal | |
120 | priority; Those functions have their own extern declaration. */ | |
3005da00 RS |
121 | int emacs_priority; |
122 | ||
7074fde6 FP |
123 | /* If non-zero a filter or a sentinel is running. Tested to save the match |
124 | data on the first attempt to change it inside asynchronous code. */ | |
125 | int running_asynch_code; | |
126 | ||
647cec74 | 127 | #ifdef BSD_PGRPS |
9ae8f997 JB |
128 | /* See sysdep.c. */ |
129 | extern int inherited_pgroup; | |
130 | #endif | |
131 | ||
f927c5ae JB |
132 | #ifdef HAVE_X_WINDOWS |
133 | /* If non-zero, -d was specified, meaning we're using some window system. */ | |
134 | int display_arg; | |
135 | #endif | |
136 | ||
137 | /* An address near the bottom of the stack. | |
138 | Tells GC how to save a copy of the stack. */ | |
139 | char *stack_bottom; | |
140 | ||
8ba50e1a | 141 | #ifdef HAVE_WINDOW_SYSTEM |
f927c5ae | 142 | extern Lisp_Object Vwindow_system; |
8ba50e1a | 143 | #endif /* HAVE_WINDOW_SYSTEM */ |
f927c5ae | 144 | |
1090a161 RS |
145 | extern Lisp_Object Vauto_save_list_file_name; |
146 | ||
f927c5ae JB |
147 | #ifdef USG_SHARED_LIBRARIES |
148 | /* If nonzero, this is the place to put the end of the writable segment | |
149 | at startup. */ | |
150 | ||
151 | unsigned int bss_end = 0; | |
152 | #endif | |
153 | ||
154 | /* Nonzero means running Emacs without interactive terminal. */ | |
155 | ||
156 | int noninteractive; | |
157 | ||
158 | /* Value of Lisp variable `noninteractive'. | |
159 | Normally same as C variable `noninteractive' | |
160 | but nothing terrible happens if user sets this one. */ | |
161 | ||
162 | int noninteractive1; | |
e29f86e4 RS |
163 | |
164 | /* Save argv and argc. */ | |
165 | char **initial_argv; | |
166 | int initial_argc; | |
081bef73 RS |
167 | |
168 | static void sort_args (); | |
f927c5ae JB |
169 | \f |
170 | /* Signal code for the fatal signal that was received */ | |
171 | int fatal_error_code; | |
172 | ||
173 | /* Nonzero if handling a fatal error already */ | |
174 | int fatal_error_in_progress; | |
175 | ||
7317d9e8 RS |
176 | #ifdef SIGUSR1 |
177 | int SIGUSR1_in_progress=0; | |
178 | SIGTYPE | |
179 | handle_USR1_signal (sig) | |
180 | int sig; | |
181 | { | |
182 | if (! SIGUSR1_in_progress) | |
183 | { | |
184 | SIGUSR1_in_progress = 1; | |
185 | ||
186 | if (!NILP (Vrun_hooks) && !noninteractive) | |
187 | call1 (Vrun_hooks, intern ("signal-USR1-hook")); | |
188 | ||
189 | SIGUSR1_in_progress = 0; | |
190 | } | |
191 | } | |
fcf01ad3 | 192 | |
7317d9e8 RS |
193 | #ifdef SIGUSR2 |
194 | int SIGUSR2_in_progress=0; | |
195 | SIGTYPE | |
196 | handle_USR2_signal (sig) | |
197 | int sig; | |
198 | { | |
199 | if (! SIGUSR2_in_progress) | |
200 | { | |
201 | SIGUSR2_in_progress = 1; | |
202 | ||
203 | if (!NILP (Vrun_hooks) && !noninteractive) | |
204 | call1 (Vrun_hooks, intern ("signal-USR2-hook")); | |
205 | ||
206 | SIGUSR2_in_progress = 0; | |
207 | } | |
208 | } | |
209 | #endif | |
210 | #endif | |
211 | ||
f927c5ae | 212 | /* Handle bus errors, illegal instruction, etc. */ |
2447c626 | 213 | SIGTYPE |
f927c5ae JB |
214 | fatal_error_signal (sig) |
215 | int sig; | |
216 | { | |
f927c5ae JB |
217 | fatal_error_code = sig; |
218 | signal (sig, SIG_DFL); | |
219 | ||
061b7f94 RS |
220 | TOTALLY_UNBLOCK_INPUT; |
221 | ||
f927c5ae | 222 | /* If fatal error occurs in code below, avoid infinite recursion. */ |
8090eb09 JB |
223 | if (! fatal_error_in_progress) |
224 | { | |
225 | fatal_error_in_progress = 1; | |
f927c5ae | 226 | |
f7ab4e3d | 227 | shut_down_emacs (sig, 0, Qnil); |
8090eb09 | 228 | } |
f927c5ae JB |
229 | |
230 | #ifdef VMS | |
f927c5ae JB |
231 | LIB$STOP (SS$_ABORT); |
232 | #else | |
8090eb09 JB |
233 | /* Signal the same code; this time it will really be fatal. |
234 | Remember that since we're in a signal handler, the signal we're | |
235 | going to send is probably blocked, so we have to unblock it if we | |
236 | want to really receive it. */ | |
29b89fe0 | 237 | #ifndef MSDOS |
a90538cb | 238 | sigunblock (sigmask (fatal_error_code)); |
29b89fe0 | 239 | #endif |
f927c5ae JB |
240 | kill (getpid (), fatal_error_code); |
241 | #endif /* not VMS */ | |
242 | } | |
271c7b7c RS |
243 | |
244 | #ifdef SIGDANGER | |
245 | ||
16c323ee | 246 | /* Handler for SIGDANGER. */ |
271c7b7c RS |
247 | SIGTYPE |
248 | memory_warning_signal (sig) | |
249 | int sig; | |
250 | { | |
251 | signal (sig, memory_warning_signal); | |
252 | ||
253 | malloc_warning ("Operating system warns that virtual memory is running low.\n"); | |
55796183 RS |
254 | |
255 | /* It might be unsafe to call do_auto_save now. */ | |
256 | force_auto_save_soon (); | |
271c7b7c RS |
257 | } |
258 | #endif | |
fcf01ad3 RS |
259 | |
260 | /* We define abort, rather than using it from the library, | |
261 | so that GDB can return from a breakpoint here. */ | |
262 | ||
263 | void | |
264 | abort () | |
265 | { | |
266 | kill (getpid (), SIGABRT); | |
267 | } | |
268 | ||
f927c5ae JB |
269 | \f |
270 | /* Code for dealing with Lisp access to the Unix command line */ | |
271 | ||
272 | static | |
273 | init_cmdargs (argc, argv, skip_args) | |
274 | int argc; | |
275 | char **argv; | |
276 | int skip_args; | |
277 | { | |
278 | register int i; | |
213d0b1f RS |
279 | Lisp_Object name, dir, tem; |
280 | int count = specpdl_ptr - specpdl; | |
281 | Lisp_Object raw_name; | |
f927c5ae | 282 | |
e29f86e4 RS |
283 | initial_argv = argv; |
284 | initial_argc = argc; | |
285 | ||
213d0b1f RS |
286 | raw_name = build_string (argv[0]); |
287 | ||
288 | /* Add /: to the front of the name | |
289 | if it would otherwise be treated as magic. */ | |
290 | tem = Ffind_file_name_handler (raw_name, Qt); | |
291 | if (! NILP (tem)) | |
292 | raw_name = concat2 (build_string ("/:"), raw_name); | |
293 | ||
294 | Vinvocation_name = Ffile_name_nondirectory (raw_name); | |
295 | Vinvocation_directory = Ffile_name_directory (raw_name); | |
296 | ||
ace40a69 RS |
297 | /* If we got no directory in argv[0], search PATH to find where |
298 | Emacs actually came from. */ | |
299 | if (NILP (Vinvocation_directory)) | |
300 | { | |
301 | Lisp_Object found; | |
302 | int yes = openp (Vexec_path, Vinvocation_name, | |
6c362a8b | 303 | EXEC_SUFFIXES, &found, 1); |
e443f843 | 304 | if (yes == 1) |
213d0b1f RS |
305 | { |
306 | /* Add /: to the front of the name | |
307 | if it would otherwise be treated as magic. */ | |
308 | tem = Ffind_file_name_handler (found, Qt); | |
309 | if (! NILP (tem)) | |
310 | found = concat2 (build_string ("/:"), found); | |
311 | Vinvocation_directory = Ffile_name_directory (found); | |
312 | } | |
ace40a69 | 313 | } |
59653951 | 314 | |
4133b300 RS |
315 | if (!NILP (Vinvocation_directory) |
316 | && NILP (Ffile_name_absolute_p (Vinvocation_directory))) | |
213d0b1f RS |
317 | /* Emacs was started with relative path, like ./emacs. |
318 | Make it absolute. */ | |
4133b300 RS |
319 | Vinvocation_directory = Fexpand_file_name (Vinvocation_directory, Qnil); |
320 | ||
07f4d123 RS |
321 | Vinstallation_directory = Qnil; |
322 | ||
323 | if (!NILP (Vinvocation_directory)) | |
324 | { | |
325 | dir = Vinvocation_directory; | |
326 | name = Fexpand_file_name (Vinvocation_name, dir); | |
327 | while (1) | |
328 | { | |
f5ab9736 | 329 | Lisp_Object tem, lib_src_exists; |
07f4d123 RS |
330 | Lisp_Object etc_exists, info_exists; |
331 | ||
f5ab9736 RS |
332 | /* See if dir contains subdirs for use by Emacs. |
333 | Check for the ones that would exist in a build directory, | |
334 | not including lisp and info. */ | |
335 | tem = Fexpand_file_name (build_string ("lib-src"), dir); | |
336 | lib_src_exists = Ffile_exists_p (tem); | |
de004cc6 | 337 | |
70344b34 | 338 | #ifdef MSDOS |
de004cc6 RS |
339 | /* MSDOS installations frequently remove lib-src, but we still |
340 | must set installation-directory, or else info won't find | |
341 | its files (it uses the value of installation-directory). */ | |
342 | tem = Fexpand_file_name (build_string ("info"), dir); | |
343 | info_exists = Ffile_exists_p (tem); | |
70344b34 EZ |
344 | #else |
345 | info_exists = Qnil; | |
346 | #endif | |
de004cc6 RS |
347 | |
348 | if (!NILP (lib_src_exists) || !NILP (info_exists)) | |
07f4d123 | 349 | { |
f5ab9736 RS |
350 | tem = Fexpand_file_name (build_string ("etc"), dir); |
351 | etc_exists = Ffile_exists_p (tem); | |
352 | if (!NILP (etc_exists)) | |
07f4d123 | 353 | { |
f5ab9736 RS |
354 | Vinstallation_directory |
355 | = Ffile_name_as_directory (dir); | |
356 | break; | |
07f4d123 RS |
357 | } |
358 | } | |
359 | ||
360 | /* See if dir's parent contains those subdirs. */ | |
f5ab9736 RS |
361 | tem = Fexpand_file_name (build_string ("../lib-src"), dir); |
362 | lib_src_exists = Ffile_exists_p (tem); | |
de004cc6 | 363 | |
70344b34 EZ |
364 | |
365 | #ifdef MSDOS | |
366 | /* See the MSDOS commentary above. */ | |
de004cc6 RS |
367 | tem = Fexpand_file_name (build_string ("../info"), dir); |
368 | info_exists = Ffile_exists_p (tem); | |
70344b34 EZ |
369 | #else |
370 | info_exists = Qnil; | |
371 | #endif | |
de004cc6 RS |
372 | |
373 | if (!NILP (lib_src_exists) || !NILP (info_exists)) | |
07f4d123 | 374 | { |
f5ab9736 RS |
375 | tem = Fexpand_file_name (build_string ("../etc"), dir); |
376 | etc_exists = Ffile_exists_p (tem); | |
377 | if (!NILP (etc_exists)) | |
07f4d123 | 378 | { |
f5ab9736 RS |
379 | tem = Fexpand_file_name (build_string (".."), dir); |
380 | Vinstallation_directory | |
381 | = Ffile_name_as_directory (tem); | |
382 | break; | |
07f4d123 RS |
383 | } |
384 | } | |
385 | ||
386 | /* If the Emacs executable is actually a link, | |
387 | next try the dir that the link points into. */ | |
388 | tem = Ffile_symlink_p (name); | |
389 | if (!NILP (tem)) | |
390 | { | |
260ec24d | 391 | name = Fexpand_file_name (tem, dir); |
07f4d123 RS |
392 | dir = Ffile_name_directory (name); |
393 | } | |
394 | else | |
395 | break; | |
396 | } | |
397 | } | |
398 | ||
f927c5ae JB |
399 | Vcommand_line_args = Qnil; |
400 | ||
401 | for (i = argc - 1; i >= 0; i--) | |
402 | { | |
403 | if (i == 0 || i > skip_args) | |
404 | Vcommand_line_args | |
405 | = Fcons (build_string (argv[i]), Vcommand_line_args); | |
406 | } | |
213d0b1f RS |
407 | |
408 | unbind_to (count, Qnil); | |
f927c5ae | 409 | } |
59653951 JB |
410 | |
411 | DEFUN ("invocation-name", Finvocation_name, Sinvocation_name, 0, 0, 0, | |
412 | "Return the program name that was used to run Emacs.\n\ | |
413 | Any directory names are omitted.") | |
414 | () | |
415 | { | |
416 | return Fcopy_sequence (Vinvocation_name); | |
417 | } | |
418 | ||
ace40a69 RS |
419 | DEFUN ("invocation-directory", Finvocation_directory, Sinvocation_directory, |
420 | 0, 0, 0, | |
421 | "Return the directory name in which the Emacs executable was located") | |
422 | () | |
423 | { | |
424 | return Fcopy_sequence (Vinvocation_directory); | |
425 | } | |
426 | ||
f927c5ae JB |
427 | \f |
428 | #ifdef VMS | |
429 | #ifdef LINK_CRTL_SHARE | |
34035df3 | 430 | #ifdef SHARABLE_LIB_BUG |
f927c5ae | 431 | extern noshare char **environ; |
34035df3 | 432 | #endif /* SHARABLE_LIB_BUG */ |
f927c5ae JB |
433 | #endif /* LINK_CRTL_SHARE */ |
434 | #endif /* VMS */ | |
435 | ||
0269dedb RS |
436 | #ifdef HAVE_TZSET |
437 | /* A valid but unlikely value for the TZ environment value. | |
438 | It is OK (though a bit slower) if the user actually chooses this value. */ | |
439 | static char dump_tz[] = "UtC0"; | |
440 | #endif | |
441 | ||
a90538cb | 442 | #ifndef ORDINARY_LINK |
efd241cc RS |
443 | /* We don't include crtbegin.o and crtend.o in the link, |
444 | so these functions and variables might be missed. | |
445 | Provide dummy definitions to avoid error. | |
446 | (We don't have any real constructors or destructors.) */ | |
447 | #ifdef __GNUC__ | |
46e65b73 | 448 | #ifndef GCC_CTORS_IN_LIBC |
c83a7064 | 449 | __do_global_ctors () |
efd241cc | 450 | {} |
c83a7064 RS |
451 | __do_global_ctors_aux () |
452 | {} | |
33143604 RS |
453 | __do_global_dtors () |
454 | {} | |
64c1864a RS |
455 | /* Linux has a bug in its library; avoid an error. */ |
456 | #ifndef LINUX | |
c83a7064 | 457 | char * __CTOR_LIST__[2] = { (char *) (-1), 0 }; |
64c1864a | 458 | #endif |
c83a7064 | 459 | char * __DTOR_LIST__[2] = { (char *) (-1), 0 }; |
46e65b73 | 460 | #endif /* GCC_CTORS_IN_LIBC */ |
c83a7064 | 461 | __main () |
efd241cc | 462 | {} |
efd241cc | 463 | #endif /* __GNUC__ */ |
a90538cb | 464 | #endif /* ORDINARY_LINK */ |
efd241cc | 465 | |
e2925360 KH |
466 | /* Test whether the next argument in ARGV matches SSTR or a prefix of |
467 | LSTR (at least MINLEN characters). If so, then if VALPTR is non-null | |
468 | (the argument is supposed to have a value) store in *VALPTR either | |
469 | the next argument or the portion of this one after the equal sign. | |
470 | ARGV is read starting at position *SKIPPTR; this index is advanced | |
471 | by the number of arguments used. | |
472 | ||
473 | Too bad we can't just use getopt for all of this, but we don't have | |
474 | enough information to do it right. */ | |
081bef73 | 475 | |
e2925360 | 476 | static int |
df6530f8 | 477 | argmatch (argv, argc, sstr, lstr, minlen, valptr, skipptr) |
e2925360 | 478 | char **argv; |
df6530f8 | 479 | int argc; |
e2925360 KH |
480 | char *sstr; |
481 | char *lstr; | |
482 | int minlen; | |
483 | char **valptr; | |
484 | int *skipptr; | |
485 | { | |
486 | char *p; | |
487 | int arglen; | |
df6530f8 RS |
488 | char *arg; |
489 | ||
490 | /* Don't access argv[argc]; give up in advance. */ | |
491 | if (argc <= *skipptr + 1) | |
492 | return 0; | |
493 | ||
494 | arg = argv[*skipptr+1]; | |
e2925360 KH |
495 | if (arg == NULL) |
496 | return 0; | |
497 | if (strcmp (arg, sstr) == 0) | |
498 | { | |
499 | if (valptr != NULL) | |
500 | { | |
501 | *valptr = argv[*skipptr+2]; | |
502 | *skipptr += 2; | |
503 | } | |
504 | else | |
505 | *skipptr += 1; | |
506 | return 1; | |
507 | } | |
508 | arglen = (valptr != NULL && (p = index (arg, '=')) != NULL | |
509 | ? p - arg : strlen (arg)); | |
c03e1113 | 510 | if (lstr == 0 || arglen < minlen || strncmp (arg, lstr, arglen) != 0) |
e2925360 KH |
511 | return 0; |
512 | else if (valptr == NULL) | |
513 | { | |
514 | *skipptr += 1; | |
515 | return 1; | |
516 | } | |
517 | else if (p != NULL) | |
518 | { | |
519 | *valptr = p+1; | |
520 | *skipptr += 1; | |
521 | return 1; | |
522 | } | |
523 | else if (argv[*skipptr+2] != NULL) | |
524 | { | |
525 | *valptr = argv[*skipptr+2]; | |
526 | *skipptr += 2; | |
527 | return 1; | |
528 | } | |
529 | else | |
530 | { | |
531 | return 0; | |
532 | } | |
533 | } | |
534 | ||
f927c5ae JB |
535 | /* ARGSUSED */ |
536 | main (argc, argv, envp) | |
537 | int argc; | |
538 | char **argv; | |
539 | char **envp; | |
540 | { | |
541 | char stack_bottom_variable; | |
542 | int skip_args = 0; | |
543 | extern int errno; | |
544 | extern sys_nerr; | |
53c58b5d RS |
545 | #ifdef HAVE_SETRLIMIT |
546 | struct rlimit rlim; | |
547 | #endif | |
f927c5ae | 548 | |
6000fe37 RS |
549 | #ifdef LINUX_SBRK_BUG |
550 | __sbrk (1); | |
551 | #endif | |
552 | ||
15aaf1b5 RS |
553 | #ifdef DOUG_LEA_MALLOC |
554 | if (initialized) | |
555 | { | |
556 | malloc_set_state (malloc_state_ptr); | |
557 | free (malloc_state_ptr); | |
ea2acec5 | 558 | r_alloc_reinit (); |
15aaf1b5 RS |
559 | } |
560 | #endif | |
561 | ||
d785cf9e RS |
562 | #ifdef RUN_TIME_REMAP |
563 | if (initialized) | |
564 | run_time_remap (argv[0]); | |
565 | #endif | |
566 | ||
081bef73 RS |
567 | sort_args (argc, argv); |
568 | ||
1702afef RS |
569 | if (argmatch (argv, argc, "-version", "--version", 3, NULL, &skip_args)) |
570 | { | |
571 | Lisp_Object tem; | |
572 | tem = Fsymbol_value (intern ("emacs-version")); | |
573 | if (!STRINGP (tem)) | |
574 | { | |
575 | fprintf (stderr, "Invalid value of `emacs-version'\n"); | |
576 | exit (1); | |
577 | } | |
578 | else | |
579 | { | |
30ce1583 | 580 | printf ("GNU Emacs %s\n", XSTRING (tem)->data); |
744b2e45 | 581 | printf ("Copyright (C) 1997 Free Software Foundation, Inc.\n"); |
b455c665 RS |
582 | printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n"); |
583 | printf ("You may redistribute copies of Emacs\n"); | |
584 | printf ("under the terms of the GNU General Public License.\n"); | |
585 | printf ("For more information about these matters, "); | |
586 | printf ("see the files named COPYING.\n"); | |
1702afef RS |
587 | exit (0); |
588 | } | |
589 | } | |
590 | ||
f927c5ae JB |
591 | /* Map in shared memory, if we are using that. */ |
592 | #ifdef HAVE_SHM | |
df6530f8 | 593 | if (argmatch (argv, argc, "-nl", "--no-shared-memory", 6, NULL, &skip_args)) |
f927c5ae JB |
594 | { |
595 | map_in_data (0); | |
596 | /* The shared memory was just restored, which clobbered this. */ | |
597 | skip_args = 1; | |
598 | } | |
599 | else | |
600 | { | |
601 | map_in_data (1); | |
602 | /* The shared memory was just restored, which clobbered this. */ | |
603 | skip_args = 0; | |
604 | } | |
605 | #endif | |
606 | ||
19a36ec6 | 607 | #ifdef NeXT |
b9df9faa KH |
608 | { |
609 | extern int malloc_cookie; | |
610 | /* This helps out unexnext.c. */ | |
611 | if (initialized) | |
612 | if (malloc_jumpstart (malloc_cookie) != 0) | |
613 | printf ("malloc jumpstart failed!\n"); | |
614 | } | |
19a36ec6 RS |
615 | #endif /* NeXT */ |
616 | ||
f927c5ae JB |
617 | #ifdef VMS |
618 | /* If -map specified, map the data file in */ | |
e2925360 KH |
619 | { |
620 | char *file; | |
df6530f8 | 621 | if (argmatch (argv, argc, "-map", "--map-data", 3, &mapin_file, &skip_args)) |
e2925360 KH |
622 | mapin_data (file); |
623 | } | |
f927c5ae JB |
624 | |
625 | #ifdef LINK_CRTL_SHARE | |
34035df3 | 626 | #ifdef SHARABLE_LIB_BUG |
f927c5ae JB |
627 | /* Bletcherous shared libraries! */ |
628 | if (!stdin) | |
629 | stdin = fdopen (0, "r"); | |
630 | if (!stdout) | |
631 | stdout = fdopen (1, "w"); | |
632 | if (!stderr) | |
633 | stderr = fdopen (2, "w"); | |
634 | if (!environ) | |
635 | environ = envp; | |
34035df3 | 636 | #endif /* SHARABLE_LIB_BUG */ |
f927c5ae JB |
637 | #endif /* LINK_CRTL_SHARE */ |
638 | #endif /* VMS */ | |
639 | ||
ea2acec5 | 640 | #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK) |
6c2935e9 RS |
641 | /* Extend the stack space available. |
642 | Don't do that if dumping, since some systems (e.g. DJGPP) | |
643 | might define a smaller stack limit at that time. */ | |
644 | if (1 | |
645 | #ifndef CANNOT_DUMP | |
646 | && (!noninteractive || initialized) | |
647 | #endif | |
648 | && !getrlimit (RLIMIT_STACK, &rlim)) | |
53c58b5d | 649 | { |
509a8fcd | 650 | long newlim; |
6c2935e9 | 651 | extern int re_max_failures; |
03effc23 KH |
652 | /* Approximate the amount regex.c needs per unit of re_max_failures. */ |
653 | int ratio = 20 * sizeof (char *); | |
654 | /* Then add 33% to cover the size of the smaller stacks that regex.c | |
655 | successively allocates and discards, on its way to the maximum. */ | |
656 | ratio += ratio / 3; | |
657 | /* Add in some extra to cover | |
658 | what we're likely to use for other reasons. */ | |
659 | newlim = re_max_failures * ratio + 200000; | |
d0381a7f RS |
660 | #ifdef __NetBSD__ |
661 | /* NetBSD (at least NetBSD 1.2G and former) has a bug in its | |
662 | stack allocation routine for new process that the allocation | |
663 | fails if stack limit is not on page boundary. So, round up the | |
664 | new limit to page boundary. */ | |
665 | newlim = (newlim + getpagesize () - 1) / getpagesize () * getpagesize(); | |
666 | #endif | |
509a8fcd | 667 | if (newlim > rlim.rlim_max) |
6c2935e9 RS |
668 | { |
669 | newlim = rlim.rlim_max; | |
03effc23 KH |
670 | /* Don't let regex.c overflow the stack we have. */ |
671 | re_max_failures = (newlim - 200000) / ratio; | |
6c2935e9 | 672 | } |
509a8fcd RS |
673 | if (rlim.rlim_cur < newlim) |
674 | rlim.rlim_cur = newlim; | |
675 | ||
53c58b5d RS |
676 | setrlimit (RLIMIT_STACK, &rlim); |
677 | } | |
ea2acec5 | 678 | #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */ |
53c58b5d | 679 | |
f927c5ae JB |
680 | /* Record (approximately) where the stack begins. */ |
681 | stack_bottom = &stack_bottom_variable; | |
682 | ||
f927c5ae JB |
683 | #ifdef USG_SHARED_LIBRARIES |
684 | if (bss_end) | |
1d233b80 | 685 | brk ((void *)bss_end); |
f927c5ae JB |
686 | #endif |
687 | ||
688 | clearerr (stdin); | |
9ae8f997 | 689 | |
f927c5ae JB |
690 | #ifndef SYSTEM_MALLOC |
691 | if (! initialized) | |
9ac0d9e0 JB |
692 | { |
693 | /* Arrange to get warning messages as memory fills up. */ | |
694 | memory_warnings (0, malloc_warning); | |
695 | ||
696 | /* Arrange to disable interrupt input while malloc and friends are | |
697 | running. */ | |
698 | uninterrupt_malloc (); | |
699 | } | |
f927c5ae JB |
700 | #endif /* not SYSTEM_MALLOC */ |
701 | ||
29b89fe0 RS |
702 | #ifdef MSDOS |
703 | /* We do all file input/output as binary files. When we need to translate | |
704 | newlines, we do that manually. */ | |
705 | _fmode = O_BINARY; | |
18198bb2 RS |
706 | |
707 | #if __DJGPP__ >= 2 | |
708 | if (!isatty (fileno (stdin))) | |
709 | setmode (fileno (stdin), O_BINARY); | |
710 | if (!isatty (fileno (stdout))) | |
711 | { | |
712 | fflush (stdout); | |
713 | setmode (fileno (stdout), O_BINARY); | |
714 | } | |
715 | #else /* not __DJGPP__ >= 2 */ | |
29b89fe0 RS |
716 | (stdin)->_flag &= ~_IOTEXT; |
717 | (stdout)->_flag &= ~_IOTEXT; | |
718 | (stderr)->_flag &= ~_IOTEXT; | |
18198bb2 | 719 | #endif /* not __DJGPP__ >= 2 */ |
29b89fe0 RS |
720 | #endif /* MSDOS */ |
721 | ||
a422068f | 722 | #ifdef SET_EMACS_PRIORITY |
3005da00 | 723 | if (emacs_priority) |
5aa7f46a | 724 | nice (emacs_priority); |
f927c5ae | 725 | setuid (getuid ()); |
a422068f | 726 | #endif /* SET_EMACS_PRIORITY */ |
f927c5ae | 727 | |
d8b3a65d | 728 | #ifdef EXTRA_INITIALIZE |
a9260219 | 729 | EXTRA_INITIALIZE; |
d8b3a65d RS |
730 | #endif |
731 | ||
f927c5ae JB |
732 | inhibit_window_system = 0; |
733 | ||
4fc0b45b | 734 | /* Handle the -t switch, which specifies filename to use as terminal */ |
e2925360 KH |
735 | { |
736 | char *term; | |
df6530f8 | 737 | if (argmatch (argv, argc, "-t", "--terminal", 4, &term, &skip_args)) |
e2925360 KH |
738 | { |
739 | int result; | |
740 | close (0); | |
741 | close (1); | |
742 | result = open (term, O_RDWR, 2 ); | |
743 | if (result < 0) | |
744 | { | |
745 | char *errstring = strerror (errno); | |
746 | fprintf (stderr, "emacs: %s: %s\n", term, errstring); | |
747 | exit (1); | |
748 | } | |
749 | dup (0); | |
750 | if (! isatty (0)) | |
751 | { | |
752 | fprintf (stderr, "emacs: %s: not a tty\n", term); | |
753 | exit (1); | |
754 | } | |
755 | fprintf (stderr, "Using %s\n", term); | |
8ba50e1a | 756 | #ifdef HAVE_WINDOW_SYSTEM |
e2925360 | 757 | inhibit_window_system = 1; /* -t => -nw */ |
f927c5ae | 758 | #endif |
e2925360 KH |
759 | } |
760 | } | |
df6530f8 | 761 | if (argmatch (argv, argc, "-nw", "--no-windows", 6, NULL, &skip_args)) |
e2925360 | 762 | inhibit_window_system = 1; |
f927c5ae | 763 | |
e2925360 | 764 | /* Handle the -batch switch, which means don't do interactive display. */ |
f927c5ae | 765 | noninteractive = 0; |
df6530f8 | 766 | if (argmatch (argv, argc, "-batch", "--batch", 5, NULL, &skip_args)) |
e2925360 KH |
767 | noninteractive = 1; |
768 | ||
769 | /* Handle the --help option, which gives a usage message.. */ | |
df6530f8 | 770 | if (argmatch (argv, argc, "-help", "--help", 3, NULL, &skip_args)) |
f927c5ae | 771 | { |
e2925360 KH |
772 | printf ("\ |
773 | Usage: %s [-t term] [--terminal term] [-nw] [--no-windows] [--batch]\n\ | |
774 | [-q] [--no-init-file] [-u user] [--user user] [--debug-init]\n\ | |
afaa660f | 775 | [--version] [--no-site-file]\n\ |
e2925360 | 776 | [-f func] [--funcall func] [-l file] [--load file] [--insert file]\n\ |
f822bec6 RS |
777 | [+linenum] file-to-visit [--kill]\n\ |
778 | Report bugs to bug-gnu-emacs@prep.ai.mit.edu. First, please see\n\ | |
8a7a3407 | 779 | the Bugs section of the Emacs manual or the file BUGS.\n", argv[0]); |
e2925360 | 780 | exit (0); |
f927c5ae JB |
781 | } |
782 | ||
081bef73 RS |
783 | #ifdef HAVE_X_WINDOWS |
784 | /* Stupid kludge to catch command-line display spec. We can't | |
785 | handle this argument entirely in window system dependent code | |
786 | because we don't even know which window system dependent code | |
787 | to run until we've recognized this argument. */ | |
788 | { | |
98ea0308 | 789 | char *displayname = 0; |
081bef73 RS |
790 | int i; |
791 | int count_before = skip_args; | |
792 | ||
df6530f8 | 793 | if (argmatch (argv, argc, "-d", "--display", 3, &displayname, &skip_args)) |
081bef73 | 794 | display_arg = 1; |
df6530f8 | 795 | else if (argmatch (argv, argc, "-display", 0, 3, &displayname, &skip_args)) |
081bef73 RS |
796 | display_arg = 1; |
797 | ||
798 | /* If we have the form --display=NAME, | |
799 | convert it into -d name. | |
800 | This requires inserting a new element into argv. */ | |
801 | if (displayname != 0 && skip_args - count_before == 1) | |
802 | { | |
803 | char **new = (char **) xmalloc (sizeof (char *) * (argc + 2)); | |
804 | int j; | |
805 | ||
806 | for (j = 0; j < count_before + 1; j++) | |
807 | new[j] = argv[j]; | |
808 | new[count_before + 1] = "-d"; | |
809 | new[count_before + 2] = displayname; | |
810 | for (j = count_before + 2; j <argc; j++) | |
811 | new[j + 1] = argv[j]; | |
812 | argv = new; | |
813 | argc++; | |
814 | } | |
1702afef RS |
815 | /* Change --display to -d, when its arg is separate. */ |
816 | else if (displayname != 0 && skip_args > count_before | |
817 | && argv[count_before + 1][1] == '-') | |
813f79d5 | 818 | argv[count_before + 1] = "-d"; |
081bef73 RS |
819 | |
820 | /* Don't actually discard this arg. */ | |
821 | skip_args = count_before; | |
822 | } | |
823 | #endif | |
824 | ||
edb85f59 RS |
825 | if (! noninteractive) |
826 | { | |
827 | #ifdef BSD_PGRPS | |
828 | if (initialized) | |
829 | { | |
830 | inherited_pgroup = EMACS_GETPGRP (0); | |
831 | setpgrp (0, getpid ()); | |
832 | } | |
833 | #else | |
834 | #if defined (USG5) && defined (INTERRUPT_INPUT) | |
835 | setpgrp (); | |
836 | #endif | |
837 | #endif | |
838 | } | |
839 | ||
fb8e9847 JB |
840 | #ifdef POSIX_SIGNALS |
841 | init_signals (); | |
842 | #endif | |
843 | ||
1efa2983 KH |
844 | /* Don't catch SIGHUP if dumping. */ |
845 | if (1 | |
846 | #ifndef CANNOT_DUMP | |
847 | && initialized | |
848 | #endif | |
849 | ) | |
850 | { | |
57e3d22a | 851 | sigblock (sigmask (SIGHUP)); |
1efa2983 KH |
852 | /* In --batch mode, don't catch SIGHUP if already ignored. |
853 | That makes nohup work. */ | |
854 | if (! noninteractive | |
855 | || signal (SIGHUP, SIG_IGN) != SIG_IGN) | |
856 | signal (SIGHUP, fatal_error_signal); | |
57e3d22a | 857 | sigunblock (sigmask (SIGHUP)); |
1efa2983 KH |
858 | } |
859 | ||
f927c5ae JB |
860 | if ( |
861 | #ifndef CANNOT_DUMP | |
862 | ! noninteractive || initialized | |
863 | #else | |
864 | 1 | |
865 | #endif | |
866 | ) | |
867 | { | |
1efa2983 | 868 | /* Don't catch these signals in batch mode if dumping. |
f927c5ae JB |
869 | On some machines, this sets static data that would make |
870 | signal fail to work right when the dumped Emacs is run. */ | |
f927c5ae JB |
871 | signal (SIGQUIT, fatal_error_signal); |
872 | signal (SIGILL, fatal_error_signal); | |
873 | signal (SIGTRAP, fatal_error_signal); | |
7317d9e8 RS |
874 | #ifdef SIGUSR1 |
875 | signal (SIGUSR1, handle_USR1_signal); | |
876 | #ifdef SIGUSR2 | |
877 | signal (SIGUSR2, handle_USR2_signal); | |
878 | #endif | |
879 | #endif | |
99e372cd RS |
880 | #ifdef SIGABRT |
881 | signal (SIGABRT, fatal_error_signal); | |
882 | #endif | |
883 | #ifdef SIGHWE | |
884 | signal (SIGHWE, fatal_error_signal); | |
885 | #endif | |
886 | #ifdef SIGPRE | |
887 | signal (SIGPRE, fatal_error_signal); | |
888 | #endif | |
889 | #ifdef SIGORE | |
890 | signal (SIGORE, fatal_error_signal); | |
891 | #endif | |
892 | #ifdef SIGUME | |
893 | signal (SIGUME, fatal_error_signal); | |
894 | #endif | |
895 | #ifdef SIGDLK | |
896 | signal (SIGDLK, fatal_error_signal); | |
897 | #endif | |
898 | #ifdef SIGCPULIM | |
899 | signal (SIGCPULIM, fatal_error_signal); | |
900 | #endif | |
a90538cb JB |
901 | #ifdef SIGIOT |
902 | /* This is missing on some systems - OS/2, for example. */ | |
f927c5ae | 903 | signal (SIGIOT, fatal_error_signal); |
a90538cb | 904 | #endif |
f927c5ae JB |
905 | #ifdef SIGEMT |
906 | signal (SIGEMT, fatal_error_signal); | |
907 | #endif | |
908 | signal (SIGFPE, fatal_error_signal); | |
00eaaa32 | 909 | #ifdef SIGBUS |
f927c5ae | 910 | signal (SIGBUS, fatal_error_signal); |
00eaaa32 | 911 | #endif |
f927c5ae | 912 | signal (SIGSEGV, fatal_error_signal); |
00eaaa32 | 913 | #ifdef SIGSYS |
f927c5ae | 914 | signal (SIGSYS, fatal_error_signal); |
00eaaa32 | 915 | #endif |
f927c5ae JB |
916 | signal (SIGTERM, fatal_error_signal); |
917 | #ifdef SIGXCPU | |
918 | signal (SIGXCPU, fatal_error_signal); | |
919 | #endif | |
920 | #ifdef SIGXFSZ | |
921 | signal (SIGXFSZ, fatal_error_signal); | |
922 | #endif /* SIGXFSZ */ | |
923 | ||
271c7b7c RS |
924 | #ifdef SIGDANGER |
925 | /* This just means available memory is getting low. */ | |
926 | signal (SIGDANGER, memory_warning_signal); | |
927 | #endif | |
928 | ||
f927c5ae | 929 | #ifdef AIX |
56e034fa RS |
930 | /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */ |
931 | signal (SIGXCPU, fatal_error_signal); | |
0aef8561 | 932 | #ifndef _I386 |
f927c5ae | 933 | signal (SIGIOINT, fatal_error_signal); |
0aef8561 | 934 | #endif |
f927c5ae JB |
935 | signal (SIGGRANT, fatal_error_signal); |
936 | signal (SIGRETRACT, fatal_error_signal); | |
937 | signal (SIGSOUND, fatal_error_signal); | |
938 | signal (SIGMSG, fatal_error_signal); | |
939 | #endif /* AIX */ | |
940 | } | |
941 | ||
942 | noninteractive1 = noninteractive; | |
943 | ||
944 | /* Perform basic initializations (not merely interning symbols) */ | |
945 | ||
946 | if (!initialized) | |
947 | { | |
948 | init_alloc_once (); | |
949 | init_obarray (); | |
950 | init_eval_once (); | |
270ce821 KH |
951 | init_charset_once (); |
952 | init_coding_once (); | |
f927c5ae | 953 | init_syntax_once (); /* Create standard syntax table. */ |
270ce821 | 954 | init_category_once (); /* Create standard category table. */ |
f927c5ae JB |
955 | /* Must be done before init_buffer */ |
956 | init_casetab_once (); | |
957 | init_buffer_once (); /* Create buffer table and some buffers */ | |
958 | init_minibuf_once (); /* Create list of minibuffers */ | |
959 | /* Must precede init_window_once */ | |
960 | init_window_once (); /* Init the window system */ | |
961 | } | |
962 | ||
963 | init_alloc (); | |
f927c5ae JB |
964 | init_eval (); |
965 | init_data (); | |
7074fde6 | 966 | running_asynch_code = 0; |
0e956009 | 967 | |
29b89fe0 RS |
968 | #ifdef MSDOS |
969 | /* Call early 'cause init_environment needs it. */ | |
970 | init_dosfns (); | |
971 | /* Set defaults for several environment variables. */ | |
18198bb2 RS |
972 | if (initialized) |
973 | init_environment (argc, argv, skip_args); | |
974 | else | |
d1fc6752 | 975 | tzset (); |
18198bb2 | 976 | #endif /* MSDOS */ |
29b89fe0 | 977 | |
8ba50e1a GV |
978 | #ifdef WINDOWSNT |
979 | /* Initialize environment from registry settings. */ | |
980 | init_environment (); | |
41f339d4 | 981 | init_ntproc (); /* must precede init_editfns */ |
8ba50e1a GV |
982 | #endif |
983 | ||
0e956009 JB |
984 | /* egetenv is a pretty low-level facility, which may get called in |
985 | many circumstances; it seems flimsy to put off initializing it | |
986 | until calling init_callproc. */ | |
987 | set_process_environment (); | |
93aed04d RS |
988 | /* AIX crashes are reported in system versions 3.2.3 and 3.2.4 |
989 | if this is not done. Do it after set_process_environment so that we | |
990 | don't pollute Vprocess_environment. */ | |
991 | #ifdef AIX | |
992 | putenv ("LANG=C"); | |
993 | #endif | |
0e956009 | 994 | |
ace40a69 RS |
995 | init_buffer (); /* Init default directory of main buffer */ |
996 | ||
7928f0b5 | 997 | init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */ |
ace40a69 | 998 | init_cmdargs (argc, argv, skip_args); /* Must precede init_lread. */ |
380e25b8 RS |
999 | |
1000 | if (initialized) | |
1001 | { | |
1002 | /* Erase any pre-dump messages in the message log, to avoid confusion */ | |
1003 | Lisp_Object old_log_max; | |
1004 | old_log_max = Vmessage_log_max; | |
1005 | XSETFASTINT (Vmessage_log_max, 0); | |
1006 | message_dolog ("", 0, 1); | |
1007 | Vmessage_log_max = old_log_max; | |
1008 | } | |
1009 | ||
7928f0b5 | 1010 | init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */ |
fb8e9847 | 1011 | init_lread (); |
f927c5ae | 1012 | |
f927c5ae JB |
1013 | if (!noninteractive) |
1014 | { | |
1015 | #ifdef VMS | |
1cbd5d9d | 1016 | init_vms_input ();/* init_display calls get_frame_size, that needs this */ |
f927c5ae JB |
1017 | #endif /* VMS */ |
1018 | init_display (); /* Determine terminal type. init_sys_modes uses results */ | |
1019 | } | |
1020 | init_keyboard (); /* This too must precede init_sys_modes */ | |
f927c5ae JB |
1021 | #ifdef VMS |
1022 | init_vmsproc (); /* And this too. */ | |
1023 | #endif /* VMS */ | |
1024 | init_sys_modes (); /* Init system terminal modes (RAW or CBREAK, etc.) */ | |
1025 | init_xdisp (); | |
1026 | init_macros (); | |
1027 | init_editfns (); | |
1028 | #ifdef LISP_FLOAT_TYPE | |
1029 | init_floatfns (); | |
1030 | #endif | |
1031 | #ifdef VMS | |
1032 | init_vmsfns (); | |
1033 | #endif /* VMS */ | |
f927c5ae | 1034 | init_process (); |
f927c5ae JB |
1035 | |
1036 | /* Intern the names of all standard functions and variables; define standard keys */ | |
1037 | ||
1038 | if (!initialized) | |
1039 | { | |
1040 | /* The basic levels of Lisp must come first */ | |
1041 | /* And data must come first of all | |
1042 | for the sake of symbols like error-message */ | |
1043 | syms_of_data (); | |
1044 | syms_of_alloc (); | |
fb8e9847 | 1045 | syms_of_lread (); |
f927c5ae JB |
1046 | syms_of_print (); |
1047 | syms_of_eval (); | |
1048 | syms_of_fns (); | |
f927c5ae | 1049 | syms_of_floatfns (); |
f927c5ae JB |
1050 | |
1051 | syms_of_abbrev (); | |
1052 | syms_of_buffer (); | |
1053 | syms_of_bytecode (); | |
1054 | syms_of_callint (); | |
1055 | syms_of_casefiddle (); | |
1056 | syms_of_casetab (); | |
1057 | syms_of_callproc (); | |
270ce821 KH |
1058 | syms_of_category (); |
1059 | syms_of_ccl (); | |
1060 | syms_of_charset (); | |
f927c5ae JB |
1061 | syms_of_cmds (); |
1062 | #ifndef NO_DIR_LIBRARY | |
1063 | syms_of_dired (); | |
1064 | #endif /* not NO_DIR_LIBRARY */ | |
1065 | syms_of_display (); | |
1066 | syms_of_doc (); | |
1067 | syms_of_editfns (); | |
1068 | syms_of_emacs (); | |
1069 | syms_of_fileio (); | |
270ce821 | 1070 | syms_of_coding (); /* This should be after syms_of_fileio. */ |
f927c5ae JB |
1071 | #ifdef CLASH_DETECTION |
1072 | syms_of_filelock (); | |
1073 | #endif /* CLASH_DETECTION */ | |
1074 | syms_of_indent (); | |
c2c5ed2c | 1075 | syms_of_insdel (); |
f927c5ae JB |
1076 | syms_of_keyboard (); |
1077 | syms_of_keymap (); | |
1078 | syms_of_macros (); | |
1079 | syms_of_marker (); | |
1080 | syms_of_minibuf (); | |
1081 | syms_of_mocklisp (); | |
f927c5ae | 1082 | syms_of_process (); |
f927c5ae | 1083 | syms_of_search (); |
1cbd5d9d | 1084 | syms_of_frame (); |
f927c5ae | 1085 | syms_of_syntax (); |
0d934e7b | 1086 | syms_of_term (); |
f927c5ae | 1087 | syms_of_undo (); |
bef79ee4 JA |
1088 | |
1089 | /* Only defined if Emacs is compiled with USE_TEXT_PROPERTIES */ | |
1090 | syms_of_textprop (); | |
f927c5ae JB |
1091 | #ifdef VMS |
1092 | syms_of_vmsproc (); | |
1093 | #endif /* VMS */ | |
05687c54 RS |
1094 | #ifdef WINDOWSNT |
1095 | syms_of_ntproc (); | |
1096 | #endif /* WINDOWSNT */ | |
f927c5ae JB |
1097 | syms_of_window (); |
1098 | syms_of_xdisp (); | |
1099 | #ifdef HAVE_X_WINDOWS | |
72412588 | 1100 | syms_of_xterm (); |
f927c5ae | 1101 | syms_of_xfns (); |
270ce821 | 1102 | syms_of_fontset (); |
72412588 JB |
1103 | #ifdef HAVE_X11 |
1104 | syms_of_xselect (); | |
1105 | #endif | |
f927c5ae JB |
1106 | #endif /* HAVE_X_WINDOWS */ |
1107 | ||
1e9c210b | 1108 | #ifndef HAVE_NTGUI |
dcdcce1a | 1109 | syms_of_xfaces (); |
6c850f3c | 1110 | syms_of_xmenu (); |
1e9c210b | 1111 | #endif |
6c850f3c | 1112 | |
8ba50e1a | 1113 | #ifdef HAVE_NTGUI |
fbd6baed GV |
1114 | syms_of_w32term (); |
1115 | syms_of_w32fns (); | |
1116 | syms_of_w32faces (); | |
1117 | syms_of_w32select (); | |
1118 | syms_of_w32menu (); | |
8ba50e1a GV |
1119 | #endif /* HAVE_NTGUI */ |
1120 | ||
f927c5ae JB |
1121 | #ifdef SYMS_SYSTEM |
1122 | SYMS_SYSTEM; | |
1123 | #endif | |
1124 | ||
1125 | #ifdef SYMS_MACHINE | |
1126 | SYMS_MACHINE; | |
1127 | #endif | |
1128 | ||
1129 | keys_of_casefiddle (); | |
1130 | keys_of_cmds (); | |
1131 | keys_of_buffer (); | |
1132 | keys_of_keyboard (); | |
1133 | keys_of_keymap (); | |
1134 | keys_of_macros (); | |
1135 | keys_of_minibuf (); | |
1136 | keys_of_window (); | |
5e67fbc2 | 1137 | keys_of_frame (); |
f927c5ae JB |
1138 | } |
1139 | ||
1140 | if (!initialized) | |
1141 | { | |
e2925360 | 1142 | char *file; |
f927c5ae | 1143 | /* Handle -l loadup-and-dump, args passed by Makefile. */ |
df6530f8 | 1144 | if (argmatch (argv, argc, "-l", "--load", 3, &file, &skip_args)) |
f927c5ae | 1145 | Vtop_level = Fcons (intern ("load"), |
e2925360 | 1146 | Fcons (build_string (file), Qnil)); |
f927c5ae JB |
1147 | #ifdef CANNOT_DUMP |
1148 | /* Unless next switch is -nl, load "loadup.el" first thing. */ | |
df6530f8 | 1149 | if (!argmatch (argv, argc, "-nl", "--no-loadup", 6, NULL, &skip_args)) |
f927c5ae JB |
1150 | Vtop_level = Fcons (intern ("load"), |
1151 | Fcons (build_string ("loadup.el"), Qnil)); | |
1152 | #endif /* CANNOT_DUMP */ | |
1153 | } | |
1154 | ||
93572b43 KH |
1155 | if (initialized) |
1156 | { | |
0269dedb RS |
1157 | #ifdef HAVE_TZSET |
1158 | { | |
1159 | /* If the execution TZ happens to be the same as the dump TZ, | |
1160 | change it to some other value and then change it back, | |
1161 | to force the underlying implementation to reload the TZ info. | |
1162 | This is needed on implementations that load TZ info from files, | |
1163 | since the TZ file contents may differ between dump and execution. */ | |
1164 | char *tz = getenv ("TZ"); | |
1165 | if (tz && !strcmp (tz, dump_tz)) | |
1166 | { | |
1167 | ++*tz; | |
1168 | tzset (); | |
1169 | --*tz; | |
1170 | } | |
1171 | } | |
1172 | #endif | |
93572b43 KH |
1173 | } |
1174 | ||
e610ea43 RS |
1175 | /* Gerd Moellmann <gerd@acm.org> says this makes profiling work on |
1176 | FreeBSD. It might work on some other systems too. | |
1177 | Give it a try and tell me if it works on your system. */ | |
1178 | #ifdef __FreeBSD__ | |
1179 | #ifdef PROFILING | |
1180 | if (initialized) | |
1181 | { | |
1182 | extern void _mcleanup (); | |
1183 | extern char etext; | |
b063fa35 | 1184 | extern Lisp_Object Fredraw_frame (); |
e610ea43 | 1185 | atexit (_mcleanup); |
8b64df46 RS |
1186 | /* This uses Fredraw_frame because that function |
1187 | comes first in the Emacs executable. | |
1188 | It might be better to use something that gives | |
1189 | the start of the text segment, but start_of_text | |
1190 | is not defined on all systems now. */ | |
b063fa35 | 1191 | monstartup (Fredraw_frame, &etext); |
e610ea43 RS |
1192 | } |
1193 | else | |
1194 | moncontrol (0); | |
1195 | #endif | |
1196 | #endif | |
1197 | ||
f927c5ae JB |
1198 | initialized = 1; |
1199 | ||
e7536cff RS |
1200 | #ifdef LOCALTIME_CACHE |
1201 | /* Some versions of localtime have a bug. They cache the value of the time | |
279cc2b8 JB |
1202 | zone rather than looking it up every time. Since localtime() is |
1203 | called to bolt the undumping time into the undumped emacs, this | |
afe9fae9 RS |
1204 | results in localtime ignoring the TZ environment variable. |
1205 | This flushes the new TZ value into localtime. */ | |
1206 | tzset (); | |
e7536cff | 1207 | #endif /* defined (LOCALTIME_CACHE) */ |
279cc2b8 | 1208 | |
f927c5ae JB |
1209 | /* Enter editor command loop. This never returns. */ |
1210 | Frecursive_edit (); | |
1211 | /* NOTREACHED */ | |
1212 | } | |
1213 | \f | |
081bef73 RS |
1214 | /* Sort the args so we can find the most important ones |
1215 | at the beginning of argv. */ | |
1216 | ||
1217 | /* First, here's a table of all the standard options. */ | |
1218 | ||
1219 | struct standard_args | |
1220 | { | |
1221 | char *name; | |
1222 | char *longname; | |
1223 | int priority; | |
1224 | int nargs; | |
1225 | }; | |
1226 | ||
1227 | struct standard_args standard_args[] = | |
1228 | { | |
221cbd7d RS |
1229 | { "-version", "--version", 110, 0 }, |
1230 | { "-help", "--help", 110, 0 }, | |
081bef73 | 1231 | { "-nl", "--no-shared-memory", 100, 0 }, |
2725719a | 1232 | #ifdef VMS |
081bef73 | 1233 | { "-map", "--map-data", 100, 0 }, |
2725719a | 1234 | #endif |
081bef73 RS |
1235 | { "-t", "--terminal", 90, 1 }, |
1236 | { "-d", "--display", 80, 1 }, | |
1237 | { "-display", 0, 80, 1 }, | |
1238 | { "-nw", "--no-windows", 70, 0 }, | |
1239 | { "-batch", "--batch", 60, 0 }, | |
1240 | { "-q", "--no-init-file", 50, 0 }, | |
1241 | { "-no-init-file", 0, 50, 0 }, | |
1242 | { "-no-site-file", "--no-site-file", 40, 0 }, | |
1243 | { "-u", "--user", 30, 1 }, | |
1244 | { "-user", 0, 30, 1 }, | |
1245 | { "-debug-init", "--debug-init", 20, 0 }, | |
adab4483 KH |
1246 | { "-i", "--icon-type", 15, 0 }, |
1247 | { "-itype", 0, 15, 0 }, | |
f2bc3538 | 1248 | { "-iconic", "--iconic", 15, 0 }, |
081bef73 RS |
1249 | { "-bg", "--background-color", 10, 1 }, |
1250 | { "-background", 0, 10, 1 }, | |
1251 | { "-fg", "--foreground-color", 10, 1 }, | |
1252 | { "-foreground", 0, 10, 1 }, | |
1253 | { "-bd", "--border-color", 10, 1 }, | |
1254 | { "-bw", "--border-width", 10, 1 }, | |
1255 | { "-ib", "--internal-border", 10, 1 }, | |
1256 | { "-ms", "--mouse-color", 10, 1 }, | |
1257 | { "-cr", "--cursor-color", 10, 1 }, | |
1258 | { "-fn", "--font", 10, 1 }, | |
1259 | { "-font", 0, 10, 1 }, | |
1260 | { "-g", "--geometry", 10, 1 }, | |
1261 | { "-geometry", 0, 10, 1 }, | |
1262 | { "-T", "--title", 10, 1 }, | |
ae63ae52 | 1263 | { "-title", 0, 10, 1 }, |
081bef73 RS |
1264 | { "-name", "--name", 10, 1 }, |
1265 | { "-xrm", "--xrm", 10, 1 }, | |
fcdeb5d9 RS |
1266 | { "-r", "--reverse-video", 5, 0 }, |
1267 | { "-rv", 0, 5, 0 }, | |
1268 | { "-reverse", 0, 5, 0 }, | |
ae63ae52 | 1269 | { "-hb", "--horizontal-scroll-bars", 5, 0 }, |
fcdeb5d9 | 1270 | { "-vb", "--vertical-scroll-bars", 5, 0 }, |
fcdeb5d9 RS |
1271 | /* These have the same priority as ordinary file name args, |
1272 | so they are not reordered with respect to those. */ | |
4af9e0b3 RS |
1273 | { "-L", "--directory", 0, 1 }, |
1274 | { "-directory", 0, 0, 1 }, | |
fcdeb5d9 RS |
1275 | { "-l", "--load", 0, 1 }, |
1276 | { "-load", 0, 0, 1 }, | |
1277 | { "-f", "--funcall", 0, 1 }, | |
1278 | { "-funcall", 0, 0, 1 }, | |
575985b1 | 1279 | { "-eval", "--eval", 0, 1 }, |
2e13f8e9 RS |
1280 | { "-find-file", "--find-file", 0, 1 }, |
1281 | { "-visit", "--visit", 0, 1 }, | |
fcdeb5d9 | 1282 | { "-insert", "--insert", 0, 1 }, |
f2bc3538 | 1283 | /* This should be processed after ordinary file name args and the like. */ |
fcdeb5d9 | 1284 | { "-kill", "--kill", -10, 0 }, |
081bef73 RS |
1285 | }; |
1286 | ||
1287 | /* Reorder the elements of ARGV (assumed to have ARGC elements) | |
1288 | so that the highest priority ones come first. | |
1289 | Do not change the order of elements of equal priority. | |
1290 | If an option takes an argument, keep it and its argument together. */ | |
1291 | ||
1292 | static void | |
1293 | sort_args (argc, argv) | |
1294 | int argc; | |
1295 | char **argv; | |
1296 | { | |
1297 | char **new = (char **) xmalloc (sizeof (char *) * argc); | |
1298 | /* For each element of argv, | |
1299 | the corresponding element of options is: | |
1300 | 0 for an option that takes no arguments, | |
1301 | 1 for an option that takes one argument, etc. | |
1302 | -1 for an ordinary non-option argument. */ | |
6dad9359 | 1303 | int *options = (int *) xmalloc (sizeof (int) * argc); |
081bef73 RS |
1304 | int *priority = (int *) xmalloc (sizeof (int) * argc); |
1305 | int to = 1; | |
1306 | int from; | |
1307 | int i; | |
c96f26f4 | 1308 | int end_of_options = argc; |
081bef73 RS |
1309 | |
1310 | /* Categorize all the options, | |
1311 | and figure out which argv elts are option arguments. */ | |
1312 | for (from = 1; from < argc; from++) | |
1313 | { | |
1314 | options[from] = -1; | |
fcdeb5d9 | 1315 | priority[from] = 0; |
081bef73 RS |
1316 | if (argv[from][0] == '-') |
1317 | { | |
1318 | int match, thislen; | |
1319 | char *equals; | |
1320 | ||
c96f26f4 RS |
1321 | /* If we have found "--", don't consider |
1322 | any more arguments as options. */ | |
249443b6 | 1323 | if (argv[from][1] == '-' && argv[from][2] == 0) |
c96f26f4 RS |
1324 | { |
1325 | /* Leave the "--", and everything following it, at the end. */ | |
1326 | for (; from < argc; from++) | |
1327 | { | |
1328 | priority[from] = -100; | |
1329 | options[from] = -1; | |
1330 | } | |
1331 | break; | |
1332 | } | |
1333 | ||
081bef73 RS |
1334 | /* Look for a match with a known old-fashioned option. */ |
1335 | for (i = 0; i < sizeof (standard_args) / sizeof (standard_args[0]); i++) | |
1336 | if (!strcmp (argv[from], standard_args[i].name)) | |
1337 | { | |
1338 | options[from] = standard_args[i].nargs; | |
1339 | priority[from] = standard_args[i].priority; | |
fd76ec52 RS |
1340 | if (from + standard_args[i].nargs >= argc) |
1341 | fatal ("Option `%s' requires an argument\n", argv[from]); | |
081bef73 RS |
1342 | from += standard_args[i].nargs; |
1343 | goto done; | |
1344 | } | |
1345 | ||
1346 | /* Look for a match with a known long option. | |
1347 | MATCH is -1 if no match so far, -2 if two or more matches so far, | |
1348 | >= 0 (the table index of the match) if just one match so far. */ | |
1349 | if (argv[from][1] == '-') | |
1350 | { | |
1351 | match = -1; | |
1352 | thislen = strlen (argv[from]); | |
1353 | equals = index (argv[from], '='); | |
1354 | if (equals != 0) | |
1355 | thislen = equals - argv[from]; | |
1356 | ||
f609ef57 KH |
1357 | for (i = 0; |
1358 | i < sizeof (standard_args) / sizeof (standard_args[0]); i++) | |
1359 | if (standard_args[i].longname | |
1360 | && !strncmp (argv[from], standard_args[i].longname, | |
1361 | thislen)) | |
081bef73 RS |
1362 | { |
1363 | if (match == -1) | |
1364 | match = i; | |
1365 | else | |
1366 | match = -2; | |
1367 | } | |
1368 | ||
1369 | /* If we found exactly one match, use that. */ | |
1370 | if (match >= 0) | |
1371 | { | |
1372 | options[from] = standard_args[match].nargs; | |
1373 | priority[from] = standard_args[match].priority; | |
1374 | /* If --OPTION=VALUE syntax is used, | |
1375 | this option uses just one argv element. */ | |
1376 | if (equals != 0) | |
1377 | options[from] = 0; | |
fd76ec52 RS |
1378 | if (from + options[from] >= argc) |
1379 | fatal ("Option `%s' requires an argument\n", argv[from]); | |
081bef73 RS |
1380 | from += options[from]; |
1381 | } | |
1382 | } | |
1383 | done: ; | |
1384 | } | |
1385 | } | |
1386 | ||
1387 | /* Copy the arguments, in order of decreasing priority, to NEW. */ | |
1388 | new[0] = argv[0]; | |
1389 | while (to < argc) | |
1390 | { | |
1391 | int best = -1; | |
2c70c992 | 1392 | int best_priority = -9999; |
081bef73 RS |
1393 | |
1394 | /* Find the highest priority remaining option. | |
1395 | If several have equal priority, take the first of them. */ | |
1396 | for (from = 1; from < argc; from++) | |
1397 | { | |
1398 | if (argv[from] != 0 && priority[from] > best_priority) | |
1399 | { | |
1400 | best_priority = priority[from]; | |
1401 | best = from; | |
1402 | } | |
1403 | /* Skip option arguments--they are tied to the options. */ | |
1404 | if (options[from] > 0) | |
1405 | from += options[from]; | |
1406 | } | |
1407 | ||
1408 | if (best < 0) | |
1409 | abort (); | |
1410 | ||
1411 | /* Copy the highest priority remaining option, with its args, to NEW. */ | |
1412 | new[to++] = argv[best]; | |
1413 | for (i = 0; i < options[best]; i++) | |
1414 | new[to++] = argv[best + i + 1]; | |
1415 | ||
1416 | /* Clear out this option in ARGV. */ | |
1417 | argv[best] = 0; | |
1418 | for (i = 0; i < options[best]; i++) | |
1419 | argv[best + i + 1] = 0; | |
1420 | } | |
1421 | ||
6dad9359 | 1422 | bcopy (new, argv, sizeof (char *) * argc); |
0bf591da RS |
1423 | |
1424 | free (options); | |
1425 | free (new); | |
1426 | free (priority); | |
081bef73 RS |
1427 | } |
1428 | \f | |
f927c5ae | 1429 | DEFUN ("kill-emacs", Fkill_emacs, Skill_emacs, 0, 1, "P", |
edc8ae07 | 1430 | "Exit the Emacs job and kill it.\n\ |
f927c5ae JB |
1431 | If ARG is an integer, return ARG as the exit program code.\n\ |
1432 | If ARG is a string, stuff it as keyboard input.\n\n\ | |
1433 | The value of `kill-emacs-hook', if not void,\n\ | |
1434 | is a list of functions (of no args),\n\ | |
1435 | all of which are called before Emacs is actually killed.") | |
1436 | (arg) | |
1437 | Lisp_Object arg; | |
1438 | { | |
1439 | Lisp_Object hook, hook1; | |
1440 | int i; | |
1441 | struct gcpro gcpro1; | |
1442 | ||
1443 | GCPRO1 (arg); | |
1444 | ||
1445 | if (feof (stdin)) | |
1446 | arg = Qt; | |
1447 | ||
2447c626 | 1448 | if (!NILP (Vrun_hooks) && !noninteractive) |
f927c5ae JB |
1449 | call1 (Vrun_hooks, intern ("kill-emacs-hook")); |
1450 | ||
f927c5ae JB |
1451 | UNGCPRO; |
1452 | ||
1453 | /* Is it really necessary to do this deassign | |
1454 | when we are going to exit anyway? */ | |
1455 | /* #ifdef VMS | |
1456 | stop_vms_input (); | |
1457 | #endif */ | |
40be253a | 1458 | |
d0068e25 | 1459 | shut_down_emacs (0, 0, STRINGP (arg) ? arg : Qnil); |
40be253a | 1460 | |
58545838 KH |
1461 | /* If we have an auto-save list file, |
1462 | kill it because we are exiting Emacs deliberately (not crashing). | |
1463 | Do it after shut_down_emacs, which does an auto-save. */ | |
1464 | if (STRINGP (Vauto_save_list_file_name)) | |
1465 | unlink (XSTRING (Vauto_save_list_file_name)->data); | |
1466 | ||
55ccc0b3 | 1467 | exit (INTEGERP (arg) ? XINT (arg) |
f927c5ae JB |
1468 | #ifdef VMS |
1469 | : 1 | |
1470 | #else | |
1471 | : 0 | |
1472 | #endif | |
1473 | ); | |
1474 | /* NOTREACHED */ | |
1475 | } | |
40be253a JB |
1476 | |
1477 | ||
1478 | /* Perform an orderly shutdown of Emacs. Autosave any modified | |
1479 | buffers, kill any child processes, clean up the terminal modes (if | |
1480 | we're in the foreground), and other stuff like that. Don't perform | |
1481 | any redisplay; this may be called when Emacs is shutting down in | |
1482 | the background, or after its X connection has died. | |
1483 | ||
1484 | If SIG is a signal number, print a message for it. | |
1485 | ||
1486 | This is called by fatal signal handlers, X protocol error handlers, | |
1487 | and Fkill_emacs. */ | |
f7ab4e3d | 1488 | |
40be253a | 1489 | void |
f7ab4e3d | 1490 | shut_down_emacs (sig, no_x, stuff) |
41423a80 | 1491 | int sig, no_x; |
f7ab4e3d | 1492 | Lisp_Object stuff; |
40be253a | 1493 | { |
829d872b RS |
1494 | /* Prevent running of hooks from now on. */ |
1495 | Vrun_hooks = Qnil; | |
1496 | ||
40be253a JB |
1497 | /* If we are controlling the terminal, reset terminal modes */ |
1498 | #ifdef EMACS_HAVE_TTY_PGRP | |
1499 | { | |
d04d81d2 RS |
1500 | int pgrp = EMACS_GETPGRP (0); |
1501 | ||
40be253a JB |
1502 | int tpgrp; |
1503 | if (EMACS_GET_TTY_PGRP (0, &tpgrp) != -1 | |
5a570e37 | 1504 | && tpgrp == pgrp) |
40be253a JB |
1505 | { |
1506 | fflush (stdout); | |
1507 | reset_sys_modes (); | |
1508 | if (sig && sig != SIGTERM) | |
1509 | fprintf (stderr, "Fatal error (%d).", sig); | |
1510 | } | |
1511 | } | |
1512 | #else | |
1513 | fflush (stdout); | |
1514 | reset_sys_modes (); | |
1515 | #endif | |
1516 | ||
f7ab4e3d RS |
1517 | stuff_buffered_input (stuff); |
1518 | ||
40be253a JB |
1519 | kill_buffer_processes (Qnil); |
1520 | Fdo_auto_save (Qt, Qnil); | |
1521 | ||
1522 | #ifdef CLASH_DETECTION | |
1523 | unlock_all_files (); | |
1524 | #endif | |
1525 | ||
1526 | #ifdef VMS | |
1527 | kill_vms_processes (); | |
1528 | #endif | |
1529 | ||
5e7f8733 | 1530 | #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */ |
41423a80 | 1531 | #ifdef HAVE_X_WINDOWS |
f7511647 RS |
1532 | /* It's not safe to call intern here. Maybe we are crashing. */ |
1533 | if (!noninteractive && SYMBOLP (Vwindow_system) | |
1534 | && XSYMBOL (Vwindow_system)->name->size == 1 | |
1535 | && XSYMBOL (Vwindow_system)->name->data[0] == 'x' | |
1536 | && ! no_x) | |
41423a80 RS |
1537 | Fx_close_current_connection (); |
1538 | #endif /* HAVE_X_WINDOWS */ | |
5e7f8733 | 1539 | #endif |
41423a80 | 1540 | |
40be253a JB |
1541 | #ifdef SIGIO |
1542 | /* There is a tendency for a SIGIO signal to arrive within exit, | |
1543 | and cause a SIGHUP because the input descriptor is already closed. */ | |
1544 | unrequest_sigio (); | |
1545 | signal (SIGIO, SIG_IGN); | |
1546 | #endif | |
41f339d4 RS |
1547 | |
1548 | #ifdef WINDOWSNT | |
1549 | term_ntproc (); | |
1550 | #endif | |
d546e578 EZ |
1551 | |
1552 | #ifdef MSDOS | |
1553 | dos_cleanup (); | |
1554 | #endif | |
40be253a JB |
1555 | } |
1556 | ||
1557 | ||
f927c5ae JB |
1558 | \f |
1559 | #ifndef CANNOT_DUMP | |
f927c5ae JB |
1560 | |
1561 | #ifdef HAVE_SHM | |
1562 | ||
1563 | DEFUN ("dump-emacs-data", Fdump_emacs_data, Sdump_emacs_data, 1, 1, 0, | |
1564 | "Dump current state of Emacs into data file FILENAME.\n\ | |
1565 | This function exists on systems that use HAVE_SHM.") | |
c9aae259 EN |
1566 | (filename) |
1567 | Lisp_Object filename; | |
f927c5ae | 1568 | { |
55697f5b | 1569 | extern char my_edata[]; |
f927c5ae | 1570 | Lisp_Object tem; |
f927c5ae | 1571 | |
c9aae259 EN |
1572 | CHECK_STRING (filename, 0); |
1573 | filename = Fexpand_file_name (filename, Qnil); | |
f927c5ae JB |
1574 | |
1575 | tem = Vpurify_flag; | |
1576 | Vpurify_flag = Qnil; | |
1577 | ||
1578 | fflush (stdout); | |
1579 | /* Tell malloc where start of impure now is */ | |
1580 | /* Also arrange for warnings when nearly out of space. */ | |
1581 | #ifndef SYSTEM_MALLOC | |
1090a161 | 1582 | memory_warnings (my_edata, malloc_warning); |
f927c5ae | 1583 | #endif |
c9aae259 | 1584 | map_out_data (XSTRING (filename)->data); |
f927c5ae JB |
1585 | |
1586 | Vpurify_flag = tem; | |
1587 | ||
1588 | return Qnil; | |
1589 | } | |
1590 | ||
1591 | #else /* not HAVE_SHM */ | |
1592 | ||
1593 | DEFUN ("dump-emacs", Fdump_emacs, Sdump_emacs, 2, 2, 0, | |
1594 | "Dump current state of Emacs into executable file FILENAME.\n\ | |
1595 | Take symbols from SYMFILE (presumably the file you executed to run Emacs).\n\ | |
1596 | This is used in the file `loadup.el' when building Emacs.\n\ | |
1597 | \n\ | |
87a98b1a | 1598 | You must run Emacs in batch mode in order to dump it.") |
c9aae259 EN |
1599 | (filename, symfile) |
1600 | Lisp_Object filename, symfile; | |
f927c5ae | 1601 | { |
55697f5b | 1602 | extern char my_edata[]; |
f927c5ae | 1603 | Lisp_Object tem; |
1b7ddf4f RS |
1604 | Lisp_Object symbol; |
1605 | int count = specpdl_ptr - specpdl; | |
f927c5ae | 1606 | |
87a98b1a RS |
1607 | if (! noninteractive) |
1608 | error ("Dumping Emacs works only in batch mode"); | |
1609 | ||
1b7ddf4f RS |
1610 | /* Bind `command-line-processed' to nil before dumping, |
1611 | so that the dumped Emacs will process its command line | |
1612 | and set up to work with X windows if appropriate. */ | |
1613 | symbol = intern ("command-line-process"); | |
1614 | specbind (symbol, Qnil); | |
1615 | ||
c9aae259 EN |
1616 | CHECK_STRING (filename, 0); |
1617 | filename = Fexpand_file_name (filename, Qnil); | |
1618 | if (!NILP (symfile)) | |
f927c5ae | 1619 | { |
c9aae259 EN |
1620 | CHECK_STRING (symfile, 0); |
1621 | if (XSTRING (symfile)->size) | |
1622 | symfile = Fexpand_file_name (symfile, Qnil); | |
f927c5ae JB |
1623 | } |
1624 | ||
1625 | tem = Vpurify_flag; | |
1626 | Vpurify_flag = Qnil; | |
1627 | ||
0269dedb RS |
1628 | #ifdef HAVE_TZSET |
1629 | set_time_zone_rule (dump_tz); | |
1630 | #ifndef LOCALTIME_CACHE | |
1631 | /* Force a tz reload, since set_time_zone_rule doesn't. */ | |
1632 | tzset (); | |
1633 | #endif | |
1634 | #endif | |
1635 | ||
f927c5ae JB |
1636 | fflush (stdout); |
1637 | #ifdef VMS | |
c9aae259 | 1638 | mapout_data (XSTRING (filename)->data); |
f927c5ae JB |
1639 | #else |
1640 | /* Tell malloc where start of impure now is */ | |
1641 | /* Also arrange for warnings when nearly out of space. */ | |
1642 | #ifndef SYSTEM_MALLOC | |
cc5f52cb RS |
1643 | #ifndef WINDOWSNT |
1644 | /* On Windows, this was done before dumping, and that once suffices. | |
1645 | Meanwhile, my_edata is not valid on Windows. */ | |
cb37cf78 | 1646 | memory_warnings (my_edata, malloc_warning); |
cc5f52cb | 1647 | #endif /* not WINDOWSNT */ |
15aaf1b5 RS |
1648 | #endif |
1649 | #ifdef DOUG_LEA_MALLOC | |
1650 | malloc_state_ptr = malloc_get_state (); | |
f927c5ae | 1651 | #endif |
c9aae259 EN |
1652 | unexec (XSTRING (filename)->data, |
1653 | !NILP (symfile) ? XSTRING (symfile)->data : 0, my_edata, 0, 0); | |
15aaf1b5 RS |
1654 | #ifdef DOUG_LEA_MALLOC |
1655 | free (malloc_state_ptr); | |
1656 | #endif | |
f927c5ae JB |
1657 | #endif /* not VMS */ |
1658 | ||
1659 | Vpurify_flag = tem; | |
1660 | ||
1b7ddf4f | 1661 | return unbind_to (count, Qnil); |
f927c5ae JB |
1662 | } |
1663 | ||
1664 | #endif /* not HAVE_SHM */ | |
1665 | ||
1666 | #endif /* not CANNOT_DUMP */ | |
1667 | \f | |
4b163808 | 1668 | #ifndef SEPCHAR |
f927c5ae JB |
1669 | #define SEPCHAR ':' |
1670 | #endif | |
1671 | ||
1672 | Lisp_Object | |
1673 | decode_env_path (evarname, defalt) | |
1674 | char *evarname, *defalt; | |
1675 | { | |
1676 | register char *path, *p; | |
213d0b1f | 1677 | Lisp_Object lpath, element, tem; |
f927c5ae | 1678 | |
2447c626 JB |
1679 | /* It's okay to use getenv here, because this function is only used |
1680 | to initialize variables when Emacs starts up, and isn't called | |
1681 | after that. */ | |
e065a56e JB |
1682 | if (evarname != 0) |
1683 | path = (char *) getenv (evarname); | |
1684 | else | |
1685 | path = 0; | |
f927c5ae JB |
1686 | if (!path) |
1687 | path = defalt; | |
6a30e6d6 RS |
1688 | #ifdef DOS_NT |
1689 | /* Ensure values from the environment use the proper directory separator. */ | |
1690 | if (path) | |
1691 | { | |
1692 | p = alloca (strlen (path) + 1); | |
1693 | strcpy (p, path); | |
1694 | path = p; | |
1695 | ||
1696 | if ('/' == DIRECTORY_SEP) | |
1697 | dostounix_filename (path); | |
1698 | else | |
1699 | unixtodos_filename (path); | |
1700 | } | |
1701 | #endif | |
f927c5ae JB |
1702 | lpath = Qnil; |
1703 | while (1) | |
1704 | { | |
1705 | p = index (path, SEPCHAR); | |
1706 | if (!p) p = path + strlen (path); | |
213d0b1f RS |
1707 | element = (p - path ? make_string (path, p - path) |
1708 | : build_string (".")); | |
1709 | ||
1710 | /* Add /: to the front of the name | |
1711 | if it would otherwise be treated as magic. */ | |
1712 | tem = Ffind_file_name_handler (element, Qt); | |
1713 | if (! NILP (tem)) | |
1714 | element = concat2 (build_string ("/:"), element); | |
1715 | ||
1716 | lpath = Fcons (element, lpath); | |
f927c5ae JB |
1717 | if (*p) |
1718 | path = p + 1; | |
1719 | else | |
1720 | break; | |
1721 | } | |
1722 | return Fnreverse (lpath); | |
1723 | } | |
1724 | ||
1725 | syms_of_emacs () | |
1726 | { | |
213d0b1f RS |
1727 | Qfile_name_handler_alist = intern ("file-name-handler-alist"); |
1728 | staticpro (&Qfile_name_handler_alist); | |
1729 | ||
83591e66 | 1730 | #ifndef CANNOT_DUMP |
f927c5ae JB |
1731 | #ifdef HAVE_SHM |
1732 | defsubr (&Sdump_emacs_data); | |
1733 | #else | |
1734 | defsubr (&Sdump_emacs); | |
83591e66 | 1735 | #endif |
f927c5ae JB |
1736 | #endif |
1737 | ||
1738 | defsubr (&Skill_emacs); | |
1739 | ||
59653951 | 1740 | defsubr (&Sinvocation_name); |
ace40a69 | 1741 | defsubr (&Sinvocation_directory); |
59653951 | 1742 | |
f927c5ae JB |
1743 | DEFVAR_LISP ("command-line-args", &Vcommand_line_args, |
1744 | "Args passed by shell to Emacs, as a list of strings."); | |
1745 | ||
1746 | DEFVAR_LISP ("system-type", &Vsystem_type, | |
1747 | "Value is symbol indicating type of operating system you are using."); | |
1748 | Vsystem_type = intern (SYSTEM_TYPE); | |
1749 | ||
271c7b7c RS |
1750 | DEFVAR_LISP ("system-configuration", &Vsystem_configuration, |
1751 | "Value is string indicating configuration Emacs was built for."); | |
f7511647 | 1752 | Vsystem_configuration = build_string (EMACS_CONFIGURATION); |
271c7b7c | 1753 | |
f0fc0b1a KH |
1754 | DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options, |
1755 | "String containing the configuration options Emacs was built with."); | |
1756 | Vsystem_configuration_options = build_string (EMACS_CONFIG_OPTIONS); | |
1757 | ||
f927c5ae JB |
1758 | DEFVAR_BOOL ("noninteractive", &noninteractive1, |
1759 | "Non-nil means Emacs is running without interactive terminal."); | |
e5d77022 | 1760 | |
e5d77022 | 1761 | DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook, |
edc8ae07 JB |
1762 | "Hook to be run whenever kill-emacs is called.\n\ |
1763 | Since kill-emacs may be invoked when the terminal is disconnected (or\n\ | |
1764 | in other similar situations), functions placed on this hook should not\n\ | |
9f232a5d RS |
1765 | expect to be able to interact with the user. To ask for confirmation,\n\ |
1766 | see `kill-emacs-query-functions' instead."); | |
edc8ae07 | 1767 | Vkill_emacs_hook = Qnil; |
3005da00 | 1768 | |
7317d9e8 RS |
1769 | #ifdef SIGUSR1 |
1770 | DEFVAR_LISP ("signal-USR1-hook", &Vsignal_USR1_hook, | |
1771 | "Hook to be run whenever emacs recieves a USR1 signal"); | |
1772 | Vsignal_USR1_hook = Qnil; | |
1773 | #ifdef SIGUSR2 | |
1774 | DEFVAR_LISP ("signal-USR2-hook", &Vsignal_USR2_hook, | |
1775 | "Hook to be run whenever emacs recieves a USR2 signal"); | |
1776 | Vsignal_USR2_hook = Qnil; | |
1777 | #endif | |
1778 | #endif | |
1779 | ||
1780 | ||
3005da00 RS |
1781 | DEFVAR_INT ("emacs-priority", &emacs_priority, |
1782 | "Priority for Emacs to run at.\n\ | |
1783 | This value is effective only if set before Emacs is dumped,\n\ | |
1784 | and only if the Emacs executable is installed with setuid to permit\n\ | |
621ecf99 | 1785 | it to change priority. (Emacs sets its uid back to the real uid.)\n\ |
a422068f | 1786 | Currently, you need to define SET_EMACS_PRIORITY in `config.h'\n\ |
ce305b11 | 1787 | before you compile Emacs, to enable the code for this feature."); |
3005da00 | 1788 | emacs_priority = 0; |
59653951 | 1789 | |
f67de86f RS |
1790 | DEFVAR_LISP ("invocation-name", &Vinvocation_name, |
1791 | "The program name that was used to run Emacs.\n\ | |
1792 | Any directory names are omitted."); | |
1793 | ||
1794 | DEFVAR_LISP ("invocation-directory", &Vinvocation_directory, | |
1795 | "The directory in which the Emacs executable was found, to run it.\n\ | |
1796 | The value is nil if that directory's name is not known."); | |
1797 | ||
1798 | DEFVAR_LISP ("installation-directory", &Vinstallation_directory, | |
1799 | "A directory within which to look for the `lib-src' and `etc' directories.\n\ | |
1800 | This is non-nil when we can't find those directories in their standard\n\ | |
1801 | installed locations, but we can find them\n\ | |
1802 | near where the Emacs executable was found."); | |
07f4d123 | 1803 | Vinstallation_directory = Qnil; |
f927c5ae | 1804 | } |