Commit | Line | Data |
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f927c5ae | 1 | /* Fully extensible Emacs, running on Unix, intended for GNU. |
68c45bf0 | 2 | Copyright (C) 1985,86,87,93,94,95,97,98,1999 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 | ||
68c45bf0 | 22 | #include <config.h> |
f927c5ae JB |
23 | #include <signal.h> |
24 | #include <errno.h> | |
f927c5ae JB |
25 | #include <stdio.h> |
26 | ||
27 | #include <sys/types.h> | |
28 | #include <sys/file.h> | |
29 | ||
30 | #ifdef VMS | |
31 | #include <ssdef.h> | |
32 | #endif | |
33 | ||
cda4a5fd GM |
34 | #ifdef HAVE_UNISTD_H |
35 | #include <unistd.h> | |
36 | #endif | |
37 | ||
488b7cb3 | 38 | #ifdef BSD_SYSTEM |
f927c5ae JB |
39 | #include <sys/ioctl.h> |
40 | #endif | |
41 | ||
f927c5ae JB |
42 | #include "lisp.h" |
43 | #include "commands.h" | |
bef79ee4 | 44 | #include "intervals.h" |
a08a816a | 45 | #include "buffer.h" |
f927c5ae | 46 | |
edc8ae07 | 47 | #include "systty.h" |
6c3a4e9d | 48 | #include "blockinput.h" |
8090eb09 | 49 | #include "syssignal.h" |
6c362a8b | 50 | #include "process.h" |
5bda49c6 | 51 | #include "termhooks.h" |
dfcf069d | 52 | #include "keyboard.h" |
a41f8bed | 53 | |
68c45bf0 PE |
54 | #ifdef HAVE_SETLOCALE |
55 | #include <locale.h> | |
56 | #endif | |
57 | ||
53c58b5d RS |
58 | #ifdef HAVE_SETRLIMIT |
59 | #include <sys/time.h> | |
60 | #include <sys/resource.h> | |
61 | #endif | |
62 | ||
f927c5ae JB |
63 | #ifndef O_RDWR |
64 | #define O_RDWR 2 | |
65 | #endif | |
66 | ||
f95c3f91 | 67 | #ifdef HAVE_SETPGID |
2b7e8799 | 68 | #if !defined (USG) || defined (BSD_PGRPS) |
f95c3f91 GM |
69 | #define setpgrp setpgid |
70 | #endif | |
2b7e8799 | 71 | #endif |
f95c3f91 | 72 | |
43165242 | 73 | extern void malloc_warning (); |
0269dedb | 74 | extern void set_time_zone_rule (); |
43165242 | 75 | extern char *index (); |
43165242 | 76 | |
30aa3f19 GM |
77 | /* Make these values available in GDB, which doesn't see macros. */ |
78 | ||
79 | EMACS_INT gdb_valbits = VALBITS; | |
80 | EMACS_INT gdb_gctypebits = GCTYPEBITS; | |
81 | EMACS_INT gdb_emacs_intbits = sizeof (EMACS_INT) * BITS_PER_CHAR; | |
82 | #ifdef DATA_SEG_BITS | |
83 | EMACS_INT gdb_data_seg_bits = DATA_SEG_BITS; | |
84 | #else | |
85 | EMACS_INT gdb_data_seg_bits = 0; | |
86 | #endif | |
00da0e4a | 87 | EMACS_INT PVEC_FLAG = PSEUDOVECTOR_FLAG; |
30aa3f19 | 88 | |
f927c5ae JB |
89 | /* Command line args from shell, as list of strings */ |
90 | Lisp_Object Vcommand_line_args; | |
91 | ||
59653951 JB |
92 | /* The name under which Emacs was invoked, with any leading directory |
93 | names discarded. */ | |
94 | Lisp_Object Vinvocation_name; | |
95 | ||
ace40a69 RS |
96 | /* The directory name from which Emacs was invoked. */ |
97 | Lisp_Object Vinvocation_directory; | |
98 | ||
07f4d123 RS |
99 | /* The directory name in which to find subdirs such as lisp and etc. |
100 | nil means get them only from PATH_LOADSEARCH. */ | |
101 | Lisp_Object Vinstallation_directory; | |
102 | ||
e5d77022 JB |
103 | /* Hook run by `kill-emacs' before it does really anything. */ |
104 | Lisp_Object Vkill_emacs_hook; | |
105 | ||
7317d9e8 RS |
106 | #ifdef SIGUSR1 |
107 | /* Hooks for signal USR1 and USR2 handing */ | |
108 | Lisp_Object Vsignal_USR1_hook; | |
109 | #ifdef SIGUSR2 | |
110 | Lisp_Object Vsignal_USR2_hook; | |
111 | #endif | |
112 | #endif | |
113 | ||
074a066b GV |
114 | /* Search path separator. */ |
115 | Lisp_Object Vpath_separator; | |
116 | ||
f927c5ae JB |
117 | /* Set nonzero after Emacs has started up the first time. |
118 | Prevents reinitialization of the Lisp world and keymaps | |
119 | on subsequent starts. */ | |
120 | int initialized; | |
121 | ||
15aaf1b5 RS |
122 | #ifdef DOUG_LEA_MALLOC |
123 | /* Preserves a pointer to the memory allocated that copies that | |
124 | static data inside glibc's malloc. */ | |
125 | void *malloc_state_ptr; | |
126 | /* From glibc, a routine that returns a copy of the malloc internal state. */ | |
127 | extern void *malloc_get_state (); | |
128 | /* From glibc, a routine that overwrites the malloc internal state. */ | |
129 | extern void malloc_set_state (); | |
7c9cd446 AS |
130 | /* Non-zero if the MALLOC_CHECK_ enviroment variable was set while |
131 | dumping. Used to work around a bug in glibc's malloc. */ | |
132 | int malloc_using_checking; | |
15aaf1b5 RS |
133 | #endif |
134 | ||
271c7b7c | 135 | /* Variable whose value is symbol giving operating system type. */ |
f927c5ae | 136 | Lisp_Object Vsystem_type; |
271c7b7c RS |
137 | |
138 | /* Variable whose value is string giving configuration built for. */ | |
139 | Lisp_Object Vsystem_configuration; | |
f0fc0b1a KH |
140 | |
141 | /* Variable whose value is string giving configuration options, | |
142 | for use when reporting bugs. */ | |
143 | Lisp_Object Vsystem_configuration_options; | |
144 | ||
213d0b1f RS |
145 | Lisp_Object Qfile_name_handler_alist; |
146 | ||
68c45bf0 | 147 | /* Current and previous system locales for messages and time. */ |
ca9c0567 PE |
148 | Lisp_Object Vsystem_messages_locale; |
149 | Lisp_Object Vprevious_system_messages_locale; | |
150 | Lisp_Object Vsystem_time_locale; | |
151 | Lisp_Object Vprevious_system_time_locale; | |
68c45bf0 | 152 | |
f927c5ae JB |
153 | /* If non-zero, emacs should not attempt to use an window-specific code, |
154 | but instead should use the virtual terminal under which it was started */ | |
155 | int inhibit_window_system; | |
156 | ||
5aa7f46a JB |
157 | /* If nonzero, set Emacs to run at this priority. This is also used |
158 | in child_setup and sys_suspend to make sure subshells run at normal | |
159 | priority; Those functions have their own extern declaration. */ | |
3005da00 RS |
160 | int emacs_priority; |
161 | ||
7074fde6 FP |
162 | /* If non-zero a filter or a sentinel is running. Tested to save the match |
163 | data on the first attempt to change it inside asynchronous code. */ | |
164 | int running_asynch_code; | |
165 | ||
647cec74 | 166 | #ifdef BSD_PGRPS |
9ae8f997 JB |
167 | /* See sysdep.c. */ |
168 | extern int inherited_pgroup; | |
169 | #endif | |
170 | ||
f927c5ae JB |
171 | #ifdef HAVE_X_WINDOWS |
172 | /* If non-zero, -d was specified, meaning we're using some window system. */ | |
173 | int display_arg; | |
174 | #endif | |
175 | ||
176 | /* An address near the bottom of the stack. | |
177 | Tells GC how to save a copy of the stack. */ | |
178 | char *stack_bottom; | |
179 | ||
8ba50e1a | 180 | #ifdef HAVE_WINDOW_SYSTEM |
f927c5ae | 181 | extern Lisp_Object Vwindow_system; |
8ba50e1a | 182 | #endif /* HAVE_WINDOW_SYSTEM */ |
f927c5ae | 183 | |
1090a161 RS |
184 | extern Lisp_Object Vauto_save_list_file_name; |
185 | ||
f927c5ae JB |
186 | #ifdef USG_SHARED_LIBRARIES |
187 | /* If nonzero, this is the place to put the end of the writable segment | |
188 | at startup. */ | |
189 | ||
190 | unsigned int bss_end = 0; | |
191 | #endif | |
192 | ||
193 | /* Nonzero means running Emacs without interactive terminal. */ | |
194 | ||
195 | int noninteractive; | |
196 | ||
197 | /* Value of Lisp variable `noninteractive'. | |
198 | Normally same as C variable `noninteractive' | |
199 | but nothing terrible happens if user sets this one. */ | |
200 | ||
201 | int noninteractive1; | |
e29f86e4 RS |
202 | |
203 | /* Save argv and argc. */ | |
204 | char **initial_argv; | |
205 | int initial_argc; | |
081bef73 RS |
206 | |
207 | static void sort_args (); | |
dfcf069d | 208 | void syms_of_emacs (); |
bd4590ba | 209 | |
73ebcd25 | 210 | #define USAGE1 "\ |
bd4590ba GM |
211 | Usage: %s [OPTION-OR-FILENAME]...\n\ |
212 | \n\ | |
213 | Run Emacs, the extensible, customizable, self-documenting real-time\n\ | |
214 | display editor. The recommended way to start Emacs for normal editing\n\ | |
215 | is with no options at all.\n\ | |
216 | \n\ | |
217 | Run M-x info RET m emacs RET m command arguments RET inside Emacs to\n\ | |
218 | read the main documentation for these command-line arguments.\n\ | |
219 | \n\ | |
220 | Initialization options:\n\ | |
221 | \n\ | |
222 | --batch do not do interactive display; implies -q\n\ | |
223 | --debug-init enable Emacs Lisp debugger during init file\n\ | |
224 | --help display this help message and exit\n\ | |
225 | --multibyte, --no-unibyte run Emacs in multibyte mode\n\ | |
226 | --no-init-file, -q load neither ~/.emacs nor default.el\n\ | |
227 | --no-shared-memory, -nl do not use shared memory\n\ | |
228 | --no-site-file do not load site-start.el\n\ | |
229 | --no-windows, -nw don't communicate with X, ignoring $DISPLAY\n\ | |
230 | --terminal, -t DEVICE use DEVICE for terminal I/O\n\ | |
231 | --unibyte, --no-multibyte run Emacs in unibyte mode\n\ | |
232 | --user, -u USER load ~USER/.emacs instead of your own\n\ | |
233 | --version display version information and exit\n\ | |
234 | \n\ | |
235 | Action options:\n\ | |
236 | \n\ | |
237 | FILE visit FILE using find-file\n\ | |
238 | +LINENUM FILE visit FILE using find-file, then go to line LINENUM\n\ | |
239 | --directory, -L DIR add DIR to variable load-path\n\ | |
240 | --eval EXPR evaluate Emacs Lisp expression EXPR\n\ | |
241 | --execute EXPR evaluate Emacs Lisp expression EXPR\n\ | |
242 | --find-file FILE visit FILE\n\ | |
243 | --funcall, -f FUNC call Emacs function FUNC with no arguments\n\ | |
244 | --insert FILE insert contents of FILE into current buffer\n\ | |
245 | --kill exit without asking for confirmation\n\ | |
246 | --load, -l FILE load FILE of Emacs Lisp code using the load function\n\ | |
247 | --visit FILE visit FILE\n\ | |
73ebcd25 AI |
248 | \n" |
249 | ||
250 | #define USAGE2 "\ | |
5b2ca26b | 251 | Display options:\n\ |
bd4590ba GM |
252 | \n\ |
253 | --background-color, -bg COLOR window background color\n\ | |
254 | --border-color, -bd COLOR main border color\n\ | |
255 | --border-width, -bw WIDTH width of main border\n\ | |
256 | --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\ | |
257 | --display, -d DISPLAY use X server DISPLAY\n\ | |
258 | --font, -fn FONT default font; must be fixed-widthp\n\ | |
259 | --foreground-color, -fg COLOR window foreground color\n\ | |
260 | --geometry, -g GEOMETRY window geometry\n\ | |
261 | --iconic start Emacs in iconified state\n\ | |
262 | --icon-type, -i use picture of gnu for Emacs icon\n\ | |
263 | --internal-border, -ib WIDTH width between text and main border\n\ | |
ecb5709c | 264 | --line-spacing, -lsp PIXELS additional space to put between lines\n\ |
bd4590ba GM |
265 | --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\ |
266 | --name NAME title of main Emacs window\n\ | |
267 | --reverse-video, -r, -rv switch foreground and background\n\ | |
268 | --title, -T, -wn, TITLE title for Emacs windows\n\ | |
269 | --vertical-scroll-bars, -vb enable vertical scroll bars\n\ | |
270 | --xrm XRESOURCES set additional X resources\n\ | |
271 | \n\ | |
272 | You can generally also specify long option names with a single -; for\n\ | |
273 | example, -batch as well as --batch. You can use any unambiguous\n\ | |
274 | abbreviation for a --option.\n\ | |
275 | \n\ | |
276 | Various environment variables and window system resources also affect\n\ | |
277 | Emacs' operation. See the main documentation.\n\ | |
278 | \n\ | |
279 | Report bugs to bug-gnu-emacs@gnu.org. First, please see the Bugs\n\ | |
280 | section of the Emacs manual or the file BUGS.\n" | |
281 | ||
f927c5ae JB |
282 | \f |
283 | /* Signal code for the fatal signal that was received */ | |
284 | int fatal_error_code; | |
285 | ||
286 | /* Nonzero if handling a fatal error already */ | |
287 | int fatal_error_in_progress; | |
288 | ||
7317d9e8 | 289 | #ifdef SIGUSR1 |
7317d9e8 RS |
290 | SIGTYPE |
291 | handle_USR1_signal (sig) | |
292 | int sig; | |
293 | { | |
5bda49c6 RS |
294 | struct input_event buf; |
295 | ||
e2fa15ff AS |
296 | buf.kind = user_signal; |
297 | buf.code = 0; | |
74c2d1c6 | 298 | buf.frame_or_window = selected_frame; |
5bda49c6 RS |
299 | buf.modifiers = 0; |
300 | buf.timestamp = 0; | |
301 | ||
302 | kbd_buffer_store_event (&buf); | |
7317d9e8 | 303 | } |
5bda49c6 | 304 | #endif /* SIGUSR1 */ |
fcf01ad3 | 305 | |
7317d9e8 | 306 | #ifdef SIGUSR2 |
7317d9e8 RS |
307 | SIGTYPE |
308 | handle_USR2_signal (sig) | |
309 | int sig; | |
310 | { | |
5bda49c6 RS |
311 | struct input_event buf; |
312 | ||
e2fa15ff AS |
313 | buf.kind = user_signal; |
314 | buf.code = 1; | |
74c2d1c6 | 315 | buf.frame_or_window = selected_frame; |
5bda49c6 RS |
316 | buf.modifiers = 0; |
317 | buf.timestamp = 0; | |
318 | ||
319 | kbd_buffer_store_event (&buf); | |
7317d9e8 | 320 | } |
5bda49c6 | 321 | #endif /* SIGUSR2 */ |
7317d9e8 | 322 | |
9ab8560d | 323 | /* Handle bus errors, invalid instruction, etc. */ |
2447c626 | 324 | SIGTYPE |
f927c5ae JB |
325 | fatal_error_signal (sig) |
326 | int sig; | |
327 | { | |
f927c5ae JB |
328 | fatal_error_code = sig; |
329 | signal (sig, SIG_DFL); | |
330 | ||
061b7f94 RS |
331 | TOTALLY_UNBLOCK_INPUT; |
332 | ||
f927c5ae | 333 | /* If fatal error occurs in code below, avoid infinite recursion. */ |
8090eb09 JB |
334 | if (! fatal_error_in_progress) |
335 | { | |
336 | fatal_error_in_progress = 1; | |
f927c5ae | 337 | |
f7ab4e3d | 338 | shut_down_emacs (sig, 0, Qnil); |
8090eb09 | 339 | } |
f927c5ae JB |
340 | |
341 | #ifdef VMS | |
f927c5ae JB |
342 | LIB$STOP (SS$_ABORT); |
343 | #else | |
8090eb09 JB |
344 | /* Signal the same code; this time it will really be fatal. |
345 | Remember that since we're in a signal handler, the signal we're | |
346 | going to send is probably blocked, so we have to unblock it if we | |
347 | want to really receive it. */ | |
29b89fe0 | 348 | #ifndef MSDOS |
a90538cb | 349 | sigunblock (sigmask (fatal_error_code)); |
29b89fe0 | 350 | #endif |
f927c5ae JB |
351 | kill (getpid (), fatal_error_code); |
352 | #endif /* not VMS */ | |
353 | } | |
271c7b7c RS |
354 | |
355 | #ifdef SIGDANGER | |
356 | ||
16c323ee | 357 | /* Handler for SIGDANGER. */ |
271c7b7c RS |
358 | SIGTYPE |
359 | memory_warning_signal (sig) | |
360 | int sig; | |
361 | { | |
362 | signal (sig, memory_warning_signal); | |
363 | ||
364 | malloc_warning ("Operating system warns that virtual memory is running low.\n"); | |
55796183 RS |
365 | |
366 | /* It might be unsafe to call do_auto_save now. */ | |
367 | force_auto_save_soon (); | |
271c7b7c RS |
368 | } |
369 | #endif | |
fcf01ad3 RS |
370 | |
371 | /* We define abort, rather than using it from the library, | |
c9fe9cce KH |
372 | so that GDB can return from a breakpoint here. |
373 | MSDOS has its own definition on msdos.c */ | |
fcf01ad3 | 374 | |
37e2fdd2 | 375 | #if ! defined (DOS_NT) && ! defined (NO_ABORT) |
ca9c0567 PE |
376 | |
377 | #ifndef ABORT_RETURN_TYPE | |
378 | #define ABORT_RETURN_TYPE void | |
379 | #endif | |
380 | ||
381 | ABORT_RETURN_TYPE | |
fcf01ad3 RS |
382 | abort () |
383 | { | |
384 | kill (getpid (), SIGABRT); | |
37e2fdd2 RS |
385 | /* This shouldn't be executed, but it prevents a warning. */ |
386 | exit (1); | |
fcf01ad3 | 387 | } |
c9fe9cce | 388 | #endif |
fcf01ad3 | 389 | |
f927c5ae JB |
390 | \f |
391 | /* Code for dealing with Lisp access to the Unix command line */ | |
392 | ||
dfcf069d | 393 | static void |
f927c5ae JB |
394 | init_cmdargs (argc, argv, skip_args) |
395 | int argc; | |
396 | char **argv; | |
397 | int skip_args; | |
398 | { | |
399 | register int i; | |
213d0b1f RS |
400 | Lisp_Object name, dir, tem; |
401 | int count = specpdl_ptr - specpdl; | |
402 | Lisp_Object raw_name; | |
f927c5ae | 403 | |
e29f86e4 RS |
404 | initial_argv = argv; |
405 | initial_argc = argc; | |
406 | ||
213d0b1f RS |
407 | raw_name = build_string (argv[0]); |
408 | ||
409 | /* Add /: to the front of the name | |
410 | if it would otherwise be treated as magic. */ | |
411 | tem = Ffind_file_name_handler (raw_name, Qt); | |
412 | if (! NILP (tem)) | |
413 | raw_name = concat2 (build_string ("/:"), raw_name); | |
414 | ||
415 | Vinvocation_name = Ffile_name_nondirectory (raw_name); | |
416 | Vinvocation_directory = Ffile_name_directory (raw_name); | |
417 | ||
ace40a69 RS |
418 | /* If we got no directory in argv[0], search PATH to find where |
419 | Emacs actually came from. */ | |
420 | if (NILP (Vinvocation_directory)) | |
421 | { | |
422 | Lisp_Object found; | |
423 | int yes = openp (Vexec_path, Vinvocation_name, | |
6c362a8b | 424 | EXEC_SUFFIXES, &found, 1); |
e443f843 | 425 | if (yes == 1) |
213d0b1f RS |
426 | { |
427 | /* Add /: to the front of the name | |
428 | if it would otherwise be treated as magic. */ | |
429 | tem = Ffind_file_name_handler (found, Qt); | |
430 | if (! NILP (tem)) | |
431 | found = concat2 (build_string ("/:"), found); | |
432 | Vinvocation_directory = Ffile_name_directory (found); | |
433 | } | |
ace40a69 | 434 | } |
59653951 | 435 | |
4133b300 RS |
436 | if (!NILP (Vinvocation_directory) |
437 | && NILP (Ffile_name_absolute_p (Vinvocation_directory))) | |
213d0b1f RS |
438 | /* Emacs was started with relative path, like ./emacs. |
439 | Make it absolute. */ | |
4133b300 RS |
440 | Vinvocation_directory = Fexpand_file_name (Vinvocation_directory, Qnil); |
441 | ||
07f4d123 RS |
442 | Vinstallation_directory = Qnil; |
443 | ||
444 | if (!NILP (Vinvocation_directory)) | |
445 | { | |
446 | dir = Vinvocation_directory; | |
447 | name = Fexpand_file_name (Vinvocation_name, dir); | |
448 | while (1) | |
449 | { | |
f5ab9736 | 450 | Lisp_Object tem, lib_src_exists; |
07f4d123 RS |
451 | Lisp_Object etc_exists, info_exists; |
452 | ||
f5ab9736 RS |
453 | /* See if dir contains subdirs for use by Emacs. |
454 | Check for the ones that would exist in a build directory, | |
455 | not including lisp and info. */ | |
456 | tem = Fexpand_file_name (build_string ("lib-src"), dir); | |
457 | lib_src_exists = Ffile_exists_p (tem); | |
de004cc6 | 458 | |
70344b34 | 459 | #ifdef MSDOS |
de004cc6 RS |
460 | /* MSDOS installations frequently remove lib-src, but we still |
461 | must set installation-directory, or else info won't find | |
462 | its files (it uses the value of installation-directory). */ | |
463 | tem = Fexpand_file_name (build_string ("info"), dir); | |
464 | info_exists = Ffile_exists_p (tem); | |
70344b34 EZ |
465 | #else |
466 | info_exists = Qnil; | |
467 | #endif | |
de004cc6 RS |
468 | |
469 | if (!NILP (lib_src_exists) || !NILP (info_exists)) | |
07f4d123 | 470 | { |
f5ab9736 RS |
471 | tem = Fexpand_file_name (build_string ("etc"), dir); |
472 | etc_exists = Ffile_exists_p (tem); | |
473 | if (!NILP (etc_exists)) | |
07f4d123 | 474 | { |
f5ab9736 RS |
475 | Vinstallation_directory |
476 | = Ffile_name_as_directory (dir); | |
477 | break; | |
07f4d123 RS |
478 | } |
479 | } | |
480 | ||
481 | /* See if dir's parent contains those subdirs. */ | |
f5ab9736 RS |
482 | tem = Fexpand_file_name (build_string ("../lib-src"), dir); |
483 | lib_src_exists = Ffile_exists_p (tem); | |
de004cc6 | 484 | |
70344b34 EZ |
485 | |
486 | #ifdef MSDOS | |
487 | /* See the MSDOS commentary above. */ | |
de004cc6 RS |
488 | tem = Fexpand_file_name (build_string ("../info"), dir); |
489 | info_exists = Ffile_exists_p (tem); | |
70344b34 EZ |
490 | #else |
491 | info_exists = Qnil; | |
492 | #endif | |
de004cc6 RS |
493 | |
494 | if (!NILP (lib_src_exists) || !NILP (info_exists)) | |
07f4d123 | 495 | { |
f5ab9736 RS |
496 | tem = Fexpand_file_name (build_string ("../etc"), dir); |
497 | etc_exists = Ffile_exists_p (tem); | |
498 | if (!NILP (etc_exists)) | |
07f4d123 | 499 | { |
f5ab9736 RS |
500 | tem = Fexpand_file_name (build_string (".."), dir); |
501 | Vinstallation_directory | |
502 | = Ffile_name_as_directory (tem); | |
503 | break; | |
07f4d123 RS |
504 | } |
505 | } | |
506 | ||
507 | /* If the Emacs executable is actually a link, | |
508 | next try the dir that the link points into. */ | |
509 | tem = Ffile_symlink_p (name); | |
510 | if (!NILP (tem)) | |
511 | { | |
260ec24d | 512 | name = Fexpand_file_name (tem, dir); |
07f4d123 RS |
513 | dir = Ffile_name_directory (name); |
514 | } | |
515 | else | |
516 | break; | |
517 | } | |
518 | } | |
519 | ||
f927c5ae JB |
520 | Vcommand_line_args = Qnil; |
521 | ||
522 | for (i = argc - 1; i >= 0; i--) | |
523 | { | |
524 | if (i == 0 || i > skip_args) | |
525 | Vcommand_line_args | |
526 | = Fcons (build_string (argv[i]), Vcommand_line_args); | |
527 | } | |
213d0b1f RS |
528 | |
529 | unbind_to (count, Qnil); | |
f927c5ae | 530 | } |
59653951 JB |
531 | |
532 | DEFUN ("invocation-name", Finvocation_name, Sinvocation_name, 0, 0, 0, | |
533 | "Return the program name that was used to run Emacs.\n\ | |
534 | Any directory names are omitted.") | |
535 | () | |
536 | { | |
537 | return Fcopy_sequence (Vinvocation_name); | |
538 | } | |
539 | ||
ace40a69 RS |
540 | DEFUN ("invocation-directory", Finvocation_directory, Sinvocation_directory, |
541 | 0, 0, 0, | |
542 | "Return the directory name in which the Emacs executable was located") | |
543 | () | |
544 | { | |
545 | return Fcopy_sequence (Vinvocation_directory); | |
546 | } | |
547 | ||
f927c5ae JB |
548 | \f |
549 | #ifdef VMS | |
550 | #ifdef LINK_CRTL_SHARE | |
34035df3 | 551 | #ifdef SHARABLE_LIB_BUG |
f927c5ae | 552 | extern noshare char **environ; |
34035df3 | 553 | #endif /* SHARABLE_LIB_BUG */ |
f927c5ae JB |
554 | #endif /* LINK_CRTL_SHARE */ |
555 | #endif /* VMS */ | |
556 | ||
0269dedb RS |
557 | #ifdef HAVE_TZSET |
558 | /* A valid but unlikely value for the TZ environment value. | |
559 | It is OK (though a bit slower) if the user actually chooses this value. */ | |
560 | static char dump_tz[] = "UtC0"; | |
561 | #endif | |
562 | ||
a90538cb | 563 | #ifndef ORDINARY_LINK |
efd241cc RS |
564 | /* We don't include crtbegin.o and crtend.o in the link, |
565 | so these functions and variables might be missed. | |
566 | Provide dummy definitions to avoid error. | |
567 | (We don't have any real constructors or destructors.) */ | |
568 | #ifdef __GNUC__ | |
46e65b73 | 569 | #ifndef GCC_CTORS_IN_LIBC |
dfcf069d | 570 | void __do_global_ctors () |
efd241cc | 571 | {} |
dfcf069d | 572 | void __do_global_ctors_aux () |
c83a7064 | 573 | {} |
dfcf069d | 574 | void __do_global_dtors () |
33143604 | 575 | {} |
64c1864a RS |
576 | /* Linux has a bug in its library; avoid an error. */ |
577 | #ifndef LINUX | |
c83a7064 | 578 | char * __CTOR_LIST__[2] = { (char *) (-1), 0 }; |
64c1864a | 579 | #endif |
c83a7064 | 580 | char * __DTOR_LIST__[2] = { (char *) (-1), 0 }; |
46e65b73 | 581 | #endif /* GCC_CTORS_IN_LIBC */ |
dfcf069d | 582 | void __main () |
efd241cc | 583 | {} |
efd241cc | 584 | #endif /* __GNUC__ */ |
a90538cb | 585 | #endif /* ORDINARY_LINK */ |
efd241cc | 586 | |
e2925360 KH |
587 | /* Test whether the next argument in ARGV matches SSTR or a prefix of |
588 | LSTR (at least MINLEN characters). If so, then if VALPTR is non-null | |
589 | (the argument is supposed to have a value) store in *VALPTR either | |
590 | the next argument or the portion of this one after the equal sign. | |
591 | ARGV is read starting at position *SKIPPTR; this index is advanced | |
592 | by the number of arguments used. | |
593 | ||
594 | Too bad we can't just use getopt for all of this, but we don't have | |
595 | enough information to do it right. */ | |
081bef73 | 596 | |
e2925360 | 597 | static int |
df6530f8 | 598 | argmatch (argv, argc, sstr, lstr, minlen, valptr, skipptr) |
e2925360 | 599 | char **argv; |
df6530f8 | 600 | int argc; |
e2925360 KH |
601 | char *sstr; |
602 | char *lstr; | |
603 | int minlen; | |
604 | char **valptr; | |
605 | int *skipptr; | |
606 | { | |
607 | char *p; | |
608 | int arglen; | |
df6530f8 RS |
609 | char *arg; |
610 | ||
611 | /* Don't access argv[argc]; give up in advance. */ | |
612 | if (argc <= *skipptr + 1) | |
613 | return 0; | |
614 | ||
615 | arg = argv[*skipptr+1]; | |
e2925360 KH |
616 | if (arg == NULL) |
617 | return 0; | |
618 | if (strcmp (arg, sstr) == 0) | |
619 | { | |
620 | if (valptr != NULL) | |
621 | { | |
622 | *valptr = argv[*skipptr+2]; | |
623 | *skipptr += 2; | |
624 | } | |
625 | else | |
626 | *skipptr += 1; | |
627 | return 1; | |
628 | } | |
629 | arglen = (valptr != NULL && (p = index (arg, '=')) != NULL | |
630 | ? p - arg : strlen (arg)); | |
c03e1113 | 631 | if (lstr == 0 || arglen < minlen || strncmp (arg, lstr, arglen) != 0) |
e2925360 KH |
632 | return 0; |
633 | else if (valptr == NULL) | |
634 | { | |
635 | *skipptr += 1; | |
636 | return 1; | |
637 | } | |
638 | else if (p != NULL) | |
639 | { | |
640 | *valptr = p+1; | |
641 | *skipptr += 1; | |
642 | return 1; | |
643 | } | |
644 | else if (argv[*skipptr+2] != NULL) | |
645 | { | |
646 | *valptr = argv[*skipptr+2]; | |
647 | *skipptr += 2; | |
648 | return 1; | |
649 | } | |
650 | else | |
651 | { | |
652 | return 0; | |
653 | } | |
654 | } | |
655 | ||
b6779252 | 656 | #ifdef DOUG_LEA_MALLOC |
f927c5ae | 657 | |
b6779252 KH |
658 | /* malloc can be invoked even before main (e.g. by the dynamic |
659 | linker), so the dumped malloc state must be restored as early as | |
660 | possible using this special hook. */ | |
661 | ||
662 | static void | |
663 | malloc_initialize_hook () | |
664 | { | |
665 | extern char **environ; | |
6000fe37 | 666 | |
15aaf1b5 RS |
667 | if (initialized) |
668 | { | |
7c9cd446 AS |
669 | if (!malloc_using_checking) |
670 | /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be | |
671 | ignored if the heap to be restored was constructed without | |
d942e12a AS |
672 | malloc checking. Can't use unsetenv, since that calls malloc. */ |
673 | { | |
674 | char **p; | |
675 | ||
b6779252 | 676 | for (p = environ; *p; p++) |
d942e12a AS |
677 | if (strncmp (*p, "MALLOC_CHECK_=", 14) == 0) |
678 | { | |
679 | do | |
680 | *p = p[1]; | |
681 | while (*++p); | |
682 | break; | |
683 | } | |
684 | } | |
b6779252 | 685 | |
15aaf1b5 RS |
686 | malloc_set_state (malloc_state_ptr); |
687 | free (malloc_state_ptr); | |
688 | } | |
7c9cd446 AS |
689 | else |
690 | malloc_using_checking = getenv ("MALLOC_CHECK_") != NULL; | |
b6779252 KH |
691 | } |
692 | ||
693 | void (*__malloc_initialize_hook) () = malloc_initialize_hook; | |
694 | ||
695 | #endif /* DOUG_LEA_MALLOC */ | |
696 | ||
697 | /* ARGSUSED */ | |
698 | int | |
699 | main (argc, argv, envp) | |
700 | int argc; | |
701 | char **argv; | |
702 | char **envp; | |
703 | { | |
2313132f | 704 | #if GC_MARK_STACK |
39ec21ea GM |
705 | Lisp_Object dummy; |
706 | #endif | |
b6779252 | 707 | char stack_bottom_variable; |
68c45bf0 | 708 | int do_initial_setlocale; |
b6779252 KH |
709 | int skip_args = 0; |
710 | extern int errno; | |
711 | extern int sys_nerr; | |
712 | #ifdef HAVE_SETRLIMIT | |
713 | struct rlimit rlim; | |
714 | #endif | |
715 | int no_loadup = 0; | |
716 | ||
2313132f | 717 | #if GC_MARK_STACK |
39ec21ea GM |
718 | extern Lisp_Object *stack_base; |
719 | stack_base = &dummy; | |
720 | #endif | |
721 | ||
b6779252 KH |
722 | #ifdef LINUX_SBRK_BUG |
723 | __sbrk (1); | |
15aaf1b5 RS |
724 | #endif |
725 | ||
d785cf9e RS |
726 | #ifdef RUN_TIME_REMAP |
727 | if (initialized) | |
728 | run_time_remap (argv[0]); | |
729 | #endif | |
730 | ||
081bef73 | 731 | sort_args (argc, argv); |
956e3c7e RS |
732 | argc = 0; |
733 | while (argv[argc]) argc++; | |
081bef73 | 734 | |
3270ae6e KH |
735 | if (argmatch (argv, argc, "-version", "--version", 3, NULL, &skip_args) |
736 | /* We don't know the version number unless this is a dumped Emacs. | |
737 | So ignore --version otherwise. */ | |
738 | && initialized) | |
1702afef RS |
739 | { |
740 | Lisp_Object tem; | |
741 | tem = Fsymbol_value (intern ("emacs-version")); | |
742 | if (!STRINGP (tem)) | |
743 | { | |
744 | fprintf (stderr, "Invalid value of `emacs-version'\n"); | |
745 | exit (1); | |
746 | } | |
747 | else | |
748 | { | |
30ce1583 | 749 | printf ("GNU Emacs %s\n", XSTRING (tem)->data); |
7e8e59d0 | 750 | printf ("Copyright (C) 1999 Free Software Foundation, Inc.\n"); |
b455c665 RS |
751 | printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n"); |
752 | printf ("You may redistribute copies of Emacs\n"); | |
753 | printf ("under the terms of the GNU General Public License.\n"); | |
754 | printf ("For more information about these matters, "); | |
94487c4e | 755 | printf ("see the file named COPYING.\n"); |
1702afef RS |
756 | exit (0); |
757 | } | |
758 | } | |
759 | ||
f927c5ae JB |
760 | /* Map in shared memory, if we are using that. */ |
761 | #ifdef HAVE_SHM | |
df6530f8 | 762 | if (argmatch (argv, argc, "-nl", "--no-shared-memory", 6, NULL, &skip_args)) |
f927c5ae JB |
763 | { |
764 | map_in_data (0); | |
765 | /* The shared memory was just restored, which clobbered this. */ | |
766 | skip_args = 1; | |
767 | } | |
768 | else | |
769 | { | |
770 | map_in_data (1); | |
771 | /* The shared memory was just restored, which clobbered this. */ | |
772 | skip_args = 0; | |
773 | } | |
774 | #endif | |
775 | ||
19a36ec6 | 776 | #ifdef NeXT |
b9df9faa KH |
777 | { |
778 | extern int malloc_cookie; | |
779 | /* This helps out unexnext.c. */ | |
780 | if (initialized) | |
781 | if (malloc_jumpstart (malloc_cookie) != 0) | |
782 | printf ("malloc jumpstart failed!\n"); | |
783 | } | |
19a36ec6 RS |
784 | #endif /* NeXT */ |
785 | ||
f927c5ae JB |
786 | #ifdef VMS |
787 | /* If -map specified, map the data file in */ | |
e2925360 KH |
788 | { |
789 | char *file; | |
df6530f8 | 790 | if (argmatch (argv, argc, "-map", "--map-data", 3, &mapin_file, &skip_args)) |
e2925360 KH |
791 | mapin_data (file); |
792 | } | |
f927c5ae JB |
793 | |
794 | #ifdef LINK_CRTL_SHARE | |
34035df3 | 795 | #ifdef SHARABLE_LIB_BUG |
f927c5ae JB |
796 | /* Bletcherous shared libraries! */ |
797 | if (!stdin) | |
798 | stdin = fdopen (0, "r"); | |
799 | if (!stdout) | |
800 | stdout = fdopen (1, "w"); | |
801 | if (!stderr) | |
802 | stderr = fdopen (2, "w"); | |
803 | if (!environ) | |
804 | environ = envp; | |
34035df3 | 805 | #endif /* SHARABLE_LIB_BUG */ |
f927c5ae JB |
806 | #endif /* LINK_CRTL_SHARE */ |
807 | #endif /* VMS */ | |
808 | ||
ea2acec5 | 809 | #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK) |
6c2935e9 RS |
810 | /* Extend the stack space available. |
811 | Don't do that if dumping, since some systems (e.g. DJGPP) | |
812 | might define a smaller stack limit at that time. */ | |
813 | if (1 | |
814 | #ifndef CANNOT_DUMP | |
815 | && (!noninteractive || initialized) | |
816 | #endif | |
817 | && !getrlimit (RLIMIT_STACK, &rlim)) | |
53c58b5d | 818 | { |
509a8fcd | 819 | long newlim; |
6c2935e9 | 820 | extern int re_max_failures; |
03effc23 KH |
821 | /* Approximate the amount regex.c needs per unit of re_max_failures. */ |
822 | int ratio = 20 * sizeof (char *); | |
823 | /* Then add 33% to cover the size of the smaller stacks that regex.c | |
824 | successively allocates and discards, on its way to the maximum. */ | |
825 | ratio += ratio / 3; | |
826 | /* Add in some extra to cover | |
827 | what we're likely to use for other reasons. */ | |
828 | newlim = re_max_failures * ratio + 200000; | |
d0381a7f RS |
829 | #ifdef __NetBSD__ |
830 | /* NetBSD (at least NetBSD 1.2G and former) has a bug in its | |
831 | stack allocation routine for new process that the allocation | |
832 | fails if stack limit is not on page boundary. So, round up the | |
833 | new limit to page boundary. */ | |
834 | newlim = (newlim + getpagesize () - 1) / getpagesize () * getpagesize(); | |
835 | #endif | |
509a8fcd | 836 | if (newlim > rlim.rlim_max) |
6c2935e9 RS |
837 | { |
838 | newlim = rlim.rlim_max; | |
03effc23 KH |
839 | /* Don't let regex.c overflow the stack we have. */ |
840 | re_max_failures = (newlim - 200000) / ratio; | |
6c2935e9 | 841 | } |
509a8fcd RS |
842 | if (rlim.rlim_cur < newlim) |
843 | rlim.rlim_cur = newlim; | |
844 | ||
53c58b5d RS |
845 | setrlimit (RLIMIT_STACK, &rlim); |
846 | } | |
ea2acec5 | 847 | #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */ |
53c58b5d | 848 | |
f927c5ae JB |
849 | /* Record (approximately) where the stack begins. */ |
850 | stack_bottom = &stack_bottom_variable; | |
851 | ||
f927c5ae JB |
852 | #ifdef USG_SHARED_LIBRARIES |
853 | if (bss_end) | |
1d233b80 | 854 | brk ((void *)bss_end); |
f927c5ae JB |
855 | #endif |
856 | ||
857 | clearerr (stdin); | |
9ae8f997 | 858 | |
f927c5ae | 859 | #ifndef SYSTEM_MALLOC |
bf7f4e90 RS |
860 | /* Arrange to get warning messages as memory fills up. */ |
861 | memory_warnings (0, malloc_warning); | |
9ac0d9e0 | 862 | |
f5a3c8c4 AI |
863 | /* Call malloc at least once, to run the initial __malloc_hook. |
864 | Also call realloc and free for consistency. */ | |
865 | free (realloc (malloc (4), 4)); | |
bf7f4e90 RS |
866 | |
867 | /* Arrange to disable interrupt input inside malloc etc. */ | |
868 | uninterrupt_malloc (); | |
f927c5ae JB |
869 | #endif /* not SYSTEM_MALLOC */ |
870 | ||
29b89fe0 RS |
871 | #ifdef MSDOS |
872 | /* We do all file input/output as binary files. When we need to translate | |
873 | newlines, we do that manually. */ | |
874 | _fmode = O_BINARY; | |
18198bb2 RS |
875 | |
876 | #if __DJGPP__ >= 2 | |
877 | if (!isatty (fileno (stdin))) | |
878 | setmode (fileno (stdin), O_BINARY); | |
879 | if (!isatty (fileno (stdout))) | |
880 | { | |
881 | fflush (stdout); | |
882 | setmode (fileno (stdout), O_BINARY); | |
883 | } | |
884 | #else /* not __DJGPP__ >= 2 */ | |
29b89fe0 RS |
885 | (stdin)->_flag &= ~_IOTEXT; |
886 | (stdout)->_flag &= ~_IOTEXT; | |
887 | (stderr)->_flag &= ~_IOTEXT; | |
18198bb2 | 888 | #endif /* not __DJGPP__ >= 2 */ |
29b89fe0 RS |
889 | #endif /* MSDOS */ |
890 | ||
a422068f | 891 | #ifdef SET_EMACS_PRIORITY |
3005da00 | 892 | if (emacs_priority) |
5aa7f46a | 893 | nice (emacs_priority); |
f927c5ae | 894 | setuid (getuid ()); |
a422068f | 895 | #endif /* SET_EMACS_PRIORITY */ |
f927c5ae | 896 | |
68c45bf0 PE |
897 | /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case. |
898 | The build procedure uses this while dumping, to ensure that the | |
899 | dumped Emacs does not have its system locale tables initialized, | |
900 | as that might cause screwups when the dumped Emacs starts up. */ | |
901 | { | |
902 | char *lc_all = getenv ("LC_ALL"); | |
903 | do_initial_setlocale = ! lc_all || strcmp (lc_all, "C"); | |
904 | } | |
905 | ||
906 | /* Set locale now, so that initial error messages are localized properly. | |
907 | fixup_locale must wait until later, since it builds strings. */ | |
908 | if (do_initial_setlocale) | |
909 | setlocale (LC_ALL, ""); | |
910 | ||
d8b3a65d | 911 | #ifdef EXTRA_INITIALIZE |
a9260219 | 912 | EXTRA_INITIALIZE; |
d8b3a65d RS |
913 | #endif |
914 | ||
f927c5ae JB |
915 | inhibit_window_system = 0; |
916 | ||
4fc0b45b | 917 | /* Handle the -t switch, which specifies filename to use as terminal */ |
956e3c7e RS |
918 | while (1) |
919 | { | |
920 | char *term; | |
921 | if (argmatch (argv, argc, "-t", "--terminal", 4, &term, &skip_args)) | |
922 | { | |
923 | int result; | |
68c45bf0 PE |
924 | emacs_close (0); |
925 | emacs_close (1); | |
926 | result = emacs_open (term, O_RDWR, 0); | |
956e3c7e RS |
927 | if (result < 0) |
928 | { | |
929 | char *errstring = strerror (errno); | |
930 | fprintf (stderr, "emacs: %s: %s\n", term, errstring); | |
931 | exit (1); | |
932 | } | |
933 | dup (0); | |
934 | if (! isatty (0)) | |
935 | { | |
936 | fprintf (stderr, "emacs: %s: not a tty\n", term); | |
937 | exit (1); | |
938 | } | |
939 | fprintf (stderr, "Using %s\n", term); | |
8ba50e1a | 940 | #ifdef HAVE_WINDOW_SYSTEM |
956e3c7e | 941 | inhibit_window_system = 1; /* -t => -nw */ |
f927c5ae | 942 | #endif |
956e3c7e RS |
943 | } |
944 | else | |
945 | break; | |
946 | } | |
947 | ||
df6530f8 | 948 | if (argmatch (argv, argc, "-nw", "--no-windows", 6, NULL, &skip_args)) |
e2925360 | 949 | inhibit_window_system = 1; |
f927c5ae | 950 | |
e2925360 | 951 | /* Handle the -batch switch, which means don't do interactive display. */ |
f927c5ae | 952 | noninteractive = 0; |
df6530f8 | 953 | if (argmatch (argv, argc, "-batch", "--batch", 5, NULL, &skip_args)) |
e2925360 KH |
954 | noninteractive = 1; |
955 | ||
956 | /* Handle the --help option, which gives a usage message.. */ | |
df6530f8 | 957 | if (argmatch (argv, argc, "-help", "--help", 3, NULL, &skip_args)) |
f927c5ae | 958 | { |
73ebcd25 AI |
959 | printf (USAGE1, argv[0]); |
960 | printf (USAGE2); | |
e2925360 | 961 | exit (0); |
f927c5ae JB |
962 | } |
963 | ||
edb85f59 RS |
964 | if (! noninteractive) |
965 | { | |
966 | #ifdef BSD_PGRPS | |
967 | if (initialized) | |
968 | { | |
969 | inherited_pgroup = EMACS_GETPGRP (0); | |
970 | setpgrp (0, getpid ()); | |
971 | } | |
972 | #else | |
973 | #if defined (USG5) && defined (INTERRUPT_INPUT) | |
974 | setpgrp (); | |
975 | #endif | |
976 | #endif | |
977 | } | |
978 | ||
fb8e9847 | 979 | init_signals (); |
fb8e9847 | 980 | |
1efa2983 KH |
981 | /* Don't catch SIGHUP if dumping. */ |
982 | if (1 | |
983 | #ifndef CANNOT_DUMP | |
984 | && initialized | |
985 | #endif | |
986 | ) | |
987 | { | |
57e3d22a | 988 | sigblock (sigmask (SIGHUP)); |
1efa2983 KH |
989 | /* In --batch mode, don't catch SIGHUP if already ignored. |
990 | That makes nohup work. */ | |
991 | if (! noninteractive | |
992 | || signal (SIGHUP, SIG_IGN) != SIG_IGN) | |
993 | signal (SIGHUP, fatal_error_signal); | |
57e3d22a | 994 | sigunblock (sigmask (SIGHUP)); |
1efa2983 KH |
995 | } |
996 | ||
f927c5ae JB |
997 | if ( |
998 | #ifndef CANNOT_DUMP | |
999 | ! noninteractive || initialized | |
1000 | #else | |
1001 | 1 | |
1002 | #endif | |
1003 | ) | |
1004 | { | |
1efa2983 | 1005 | /* Don't catch these signals in batch mode if dumping. |
f927c5ae JB |
1006 | On some machines, this sets static data that would make |
1007 | signal fail to work right when the dumped Emacs is run. */ | |
f927c5ae JB |
1008 | signal (SIGQUIT, fatal_error_signal); |
1009 | signal (SIGILL, fatal_error_signal); | |
1010 | signal (SIGTRAP, fatal_error_signal); | |
7317d9e8 RS |
1011 | #ifdef SIGUSR1 |
1012 | signal (SIGUSR1, handle_USR1_signal); | |
1013 | #ifdef SIGUSR2 | |
1014 | signal (SIGUSR2, handle_USR2_signal); | |
1015 | #endif | |
1016 | #endif | |
99e372cd RS |
1017 | #ifdef SIGABRT |
1018 | signal (SIGABRT, fatal_error_signal); | |
1019 | #endif | |
1020 | #ifdef SIGHWE | |
1021 | signal (SIGHWE, fatal_error_signal); | |
1022 | #endif | |
1023 | #ifdef SIGPRE | |
1024 | signal (SIGPRE, fatal_error_signal); | |
1025 | #endif | |
1026 | #ifdef SIGORE | |
1027 | signal (SIGORE, fatal_error_signal); | |
1028 | #endif | |
1029 | #ifdef SIGUME | |
1030 | signal (SIGUME, fatal_error_signal); | |
1031 | #endif | |
1032 | #ifdef SIGDLK | |
1033 | signal (SIGDLK, fatal_error_signal); | |
1034 | #endif | |
1035 | #ifdef SIGCPULIM | |
1036 | signal (SIGCPULIM, fatal_error_signal); | |
1037 | #endif | |
a90538cb JB |
1038 | #ifdef SIGIOT |
1039 | /* This is missing on some systems - OS/2, for example. */ | |
f927c5ae | 1040 | signal (SIGIOT, fatal_error_signal); |
a90538cb | 1041 | #endif |
f927c5ae JB |
1042 | #ifdef SIGEMT |
1043 | signal (SIGEMT, fatal_error_signal); | |
1044 | #endif | |
1045 | signal (SIGFPE, fatal_error_signal); | |
00eaaa32 | 1046 | #ifdef SIGBUS |
f927c5ae | 1047 | signal (SIGBUS, fatal_error_signal); |
00eaaa32 | 1048 | #endif |
f927c5ae | 1049 | signal (SIGSEGV, fatal_error_signal); |
00eaaa32 | 1050 | #ifdef SIGSYS |
f927c5ae | 1051 | signal (SIGSYS, fatal_error_signal); |
00eaaa32 | 1052 | #endif |
f927c5ae JB |
1053 | signal (SIGTERM, fatal_error_signal); |
1054 | #ifdef SIGXCPU | |
1055 | signal (SIGXCPU, fatal_error_signal); | |
1056 | #endif | |
1057 | #ifdef SIGXFSZ | |
1058 | signal (SIGXFSZ, fatal_error_signal); | |
1059 | #endif /* SIGXFSZ */ | |
1060 | ||
271c7b7c RS |
1061 | #ifdef SIGDANGER |
1062 | /* This just means available memory is getting low. */ | |
1063 | signal (SIGDANGER, memory_warning_signal); | |
1064 | #endif | |
1065 | ||
f927c5ae | 1066 | #ifdef AIX |
56e034fa RS |
1067 | /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */ |
1068 | signal (SIGXCPU, fatal_error_signal); | |
0aef8561 | 1069 | #ifndef _I386 |
f927c5ae | 1070 | signal (SIGIOINT, fatal_error_signal); |
0aef8561 | 1071 | #endif |
f927c5ae JB |
1072 | signal (SIGGRANT, fatal_error_signal); |
1073 | signal (SIGRETRACT, fatal_error_signal); | |
1074 | signal (SIGSOUND, fatal_error_signal); | |
1075 | signal (SIGMSG, fatal_error_signal); | |
1076 | #endif /* AIX */ | |
1077 | } | |
1078 | ||
1079 | noninteractive1 = noninteractive; | |
1080 | ||
1081 | /* Perform basic initializations (not merely interning symbols) */ | |
1082 | ||
1083 | if (!initialized) | |
1084 | { | |
1085 | init_alloc_once (); | |
1086 | init_obarray (); | |
1087 | init_eval_once (); | |
270ce821 KH |
1088 | init_charset_once (); |
1089 | init_coding_once (); | |
f927c5ae | 1090 | init_syntax_once (); /* Create standard syntax table. */ |
270ce821 | 1091 | init_category_once (); /* Create standard category table. */ |
f927c5ae JB |
1092 | /* Must be done before init_buffer */ |
1093 | init_casetab_once (); | |
1094 | init_buffer_once (); /* Create buffer table and some buffers */ | |
1095 | init_minibuf_once (); /* Create list of minibuffers */ | |
90d920b6 GM |
1096 | /* Must precede init_window_once */ |
1097 | ||
1098 | /* Call syms_of_xfaces before init_window_once because that | |
1099 | function creates Vterminal_frame. Termcap frames now use | |
1100 | faces, and the face implementation uses some symbols as | |
1101 | face names. */ | |
90d920b6 | 1102 | syms_of_xfaces (); |
90d920b6 | 1103 | |
f927c5ae | 1104 | init_window_once (); /* Init the window system */ |
680256a8 | 1105 | init_fileio_once (); /* Must precede any path manipulation. */ |
f927c5ae JB |
1106 | } |
1107 | ||
1108 | init_alloc (); | |
68c45bf0 PE |
1109 | |
1110 | if (do_initial_setlocale) | |
1111 | { | |
1112 | fixup_locale (); | |
ca9c0567 PE |
1113 | Vsystem_messages_locale = Vprevious_system_messages_locale; |
1114 | Vsystem_time_locale = Vprevious_system_time_locale; | |
68c45bf0 PE |
1115 | } |
1116 | ||
f927c5ae | 1117 | init_eval (); |
0968d4ee | 1118 | init_coding (); |
f927c5ae | 1119 | init_data (); |
ad067ea6 KH |
1120 | #ifdef CLASH_DETECTION |
1121 | init_filelock ();; | |
1122 | #endif | |
ab5d0358 | 1123 | init_atimer (); |
7074fde6 | 1124 | running_asynch_code = 0; |
0e956009 | 1125 | |
a08a816a RS |
1126 | /* Handle --unibyte and the EMACS_UNIBYTE envvar, |
1127 | but not while dumping. */ | |
1128 | if ( | |
1129 | #ifndef CANNOT_DUMP | |
1130 | ! noninteractive || initialized | |
1131 | #else | |
1132 | 1 | |
1133 | #endif | |
1134 | ) | |
1135 | { | |
1136 | int inhibit_unibyte = 0; | |
1137 | ||
1138 | /* --multibyte overrides EMACS_UNIBYTE. */ | |
1139 | if (argmatch (argv, argc, "-no-unibyte", "--no-unibyte", 4, NULL, &skip_args) | |
1140 | || argmatch (argv, argc, "-multibyte", "--multibyte", 4, NULL, &skip_args)) | |
1141 | inhibit_unibyte = 1; | |
1142 | ||
1143 | /* --unibyte requests that we set up to do everything with single-byte | |
1144 | buffers and strings. We need to handle this before calling | |
1145 | init_lread, init_editfns and other places that generate Lisp strings | |
1146 | from text in the environment. */ | |
c0218e1b DL |
1147 | /* Actually this shouldn't be needed as of 20.4 in a generally |
1148 | unibyte environment. As handa says, environment values | |
1149 | aren't now decoded; also existing buffers are now made | |
1150 | unibyte during startup if .emacs sets unibyte. Tested with | |
1151 | 8-bit data in environment variables and /etc/passwd, setting | |
1152 | unibyte and Latin-1 in .emacs. -- Dave Love */ | |
a08a816a RS |
1153 | if (argmatch (argv, argc, "-unibyte", "--unibyte", 4, NULL, &skip_args) |
1154 | || argmatch (argv, argc, "-no-multibyte", "--no-multibyte", 4, NULL, &skip_args) | |
1155 | || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte)) | |
1156 | { | |
1157 | Lisp_Object old_log_max; | |
1158 | Lisp_Object symbol, tail; | |
1159 | ||
1160 | symbol = intern ("default-enable-multibyte-characters"); | |
1161 | Fset (symbol, Qnil); | |
1162 | ||
6524291c KH |
1163 | if (initialized) |
1164 | { | |
1165 | /* Erase pre-dump messages in *Messages* now so no abort. */ | |
1166 | old_log_max = Vmessage_log_max; | |
1167 | XSETFASTINT (Vmessage_log_max, 0); | |
1168 | message_dolog ("", 0, 1, 0); | |
1169 | Vmessage_log_max = old_log_max; | |
1170 | } | |
a08a816a | 1171 | |
3e75bb9e | 1172 | for (tail = Vbuffer_alist; CONSP (tail); |
7539e11f | 1173 | tail = XCDR (tail)) |
a08a816a RS |
1174 | { |
1175 | Lisp_Object buffer; | |
1176 | ||
7539e11f | 1177 | buffer = Fcdr (XCAR (tail)); |
a08a816a RS |
1178 | /* Verify that all buffers are empty now, as they |
1179 | ought to be. */ | |
1180 | if (BUF_Z (XBUFFER (buffer)) > BUF_BEG (XBUFFER (buffer))) | |
1181 | abort (); | |
1182 | /* It is safe to do this crudely in an empty buffer. */ | |
1183 | XBUFFER (buffer)->enable_multibyte_characters = Qnil; | |
1184 | } | |
1185 | } | |
1186 | } | |
1187 | ||
956e3c7e | 1188 | no_loadup |
b96f9fb7 | 1189 | = argmatch (argv, argc, "-nl", "--no-loadup", 6, NULL, &skip_args); |
956e3c7e RS |
1190 | |
1191 | ||
1192 | #ifdef HAVE_X_WINDOWS | |
1193 | /* Stupid kludge to catch command-line display spec. We can't | |
1194 | handle this argument entirely in window system dependent code | |
1195 | because we don't even know which window system dependent code | |
1196 | to run until we've recognized this argument. */ | |
1197 | { | |
1198 | char *displayname = 0; | |
956e3c7e RS |
1199 | int count_before = skip_args; |
1200 | ||
1201 | /* Skip any number of -d options, but only use the last one. */ | |
1202 | while (1) | |
1203 | { | |
1204 | int count_before_this = skip_args; | |
1205 | ||
1206 | if (argmatch (argv, argc, "-d", "--display", 3, &displayname, &skip_args)) | |
1207 | display_arg = 1; | |
1208 | else if (argmatch (argv, argc, "-display", 0, 3, &displayname, &skip_args)) | |
1209 | display_arg = 1; | |
1210 | else | |
1211 | break; | |
1212 | ||
1213 | count_before = count_before_this; | |
1214 | } | |
1215 | ||
1216 | /* If we have the form --display=NAME, | |
1217 | convert it into -d name. | |
1218 | This requires inserting a new element into argv. */ | |
1219 | if (displayname != 0 && skip_args - count_before == 1) | |
1220 | { | |
1221 | char **new = (char **) xmalloc (sizeof (char *) * (argc + 2)); | |
1222 | int j; | |
1223 | ||
1224 | for (j = 0; j < count_before + 1; j++) | |
1225 | new[j] = argv[j]; | |
1226 | new[count_before + 1] = "-d"; | |
1227 | new[count_before + 2] = displayname; | |
1228 | for (j = count_before + 2; j <argc; j++) | |
1229 | new[j + 1] = argv[j]; | |
1230 | argv = new; | |
1231 | argc++; | |
1232 | } | |
1233 | /* Change --display to -d, when its arg is separate. */ | |
1234 | else if (displayname != 0 && skip_args > count_before | |
1235 | && argv[count_before + 1][1] == '-') | |
1236 | argv[count_before + 1] = "-d"; | |
1237 | ||
1238 | /* Don't actually discard this arg. */ | |
1239 | skip_args = count_before; | |
1240 | } | |
1241 | #endif | |
1242 | ||
1243 | /* argmatch must not be used after here, | |
1244 | except when bulding temacs | |
1245 | because the -d argument has not been skipped in skip_args. */ | |
1246 | ||
29b89fe0 RS |
1247 | #ifdef MSDOS |
1248 | /* Call early 'cause init_environment needs it. */ | |
1249 | init_dosfns (); | |
1250 | /* Set defaults for several environment variables. */ | |
18198bb2 RS |
1251 | if (initialized) |
1252 | init_environment (argc, argv, skip_args); | |
1253 | else | |
d1fc6752 | 1254 | tzset (); |
18198bb2 | 1255 | #endif /* MSDOS */ |
29b89fe0 | 1256 | |
8ba50e1a GV |
1257 | #ifdef WINDOWSNT |
1258 | /* Initialize environment from registry settings. */ | |
a3a58294 | 1259 | init_environment (argv); |
41f339d4 | 1260 | init_ntproc (); /* must precede init_editfns */ |
8ba50e1a GV |
1261 | #endif |
1262 | ||
0e956009 JB |
1263 | /* egetenv is a pretty low-level facility, which may get called in |
1264 | many circumstances; it seems flimsy to put off initializing it | |
1265 | until calling init_callproc. */ | |
1266 | set_process_environment (); | |
93aed04d RS |
1267 | /* AIX crashes are reported in system versions 3.2.3 and 3.2.4 |
1268 | if this is not done. Do it after set_process_environment so that we | |
1269 | don't pollute Vprocess_environment. */ | |
fa09a82d DL |
1270 | /* Setting LANG here will defeat the startup locale processing... */ |
1271 | #ifdef AIX3_2 | |
93aed04d RS |
1272 | putenv ("LANG=C"); |
1273 | #endif | |
0e956009 | 1274 | |
ace40a69 RS |
1275 | init_buffer (); /* Init default directory of main buffer */ |
1276 | ||
7928f0b5 | 1277 | init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */ |
ace40a69 | 1278 | init_cmdargs (argc, argv, skip_args); /* Must precede init_lread. */ |
380e25b8 RS |
1279 | |
1280 | if (initialized) | |
1281 | { | |
1282 | /* Erase any pre-dump messages in the message log, to avoid confusion */ | |
1283 | Lisp_Object old_log_max; | |
1284 | old_log_max = Vmessage_log_max; | |
1285 | XSETFASTINT (Vmessage_log_max, 0); | |
f6fe7bb5 | 1286 | message_dolog ("", 0, 1, 0); |
380e25b8 RS |
1287 | Vmessage_log_max = old_log_max; |
1288 | } | |
1289 | ||
7928f0b5 | 1290 | init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */ |
fb8e9847 | 1291 | init_lread (); |
f927c5ae | 1292 | |
8bb697c0 RS |
1293 | /* Intern the names of all standard functions and variables; |
1294 | define standard keys. */ | |
f927c5ae JB |
1295 | |
1296 | if (!initialized) | |
1297 | { | |
1298 | /* The basic levels of Lisp must come first */ | |
1299 | /* And data must come first of all | |
1300 | for the sake of symbols like error-message */ | |
1301 | syms_of_data (); | |
1302 | syms_of_alloc (); | |
fb8e9847 | 1303 | syms_of_lread (); |
f927c5ae JB |
1304 | syms_of_print (); |
1305 | syms_of_eval (); | |
1306 | syms_of_fns (); | |
f927c5ae | 1307 | syms_of_floatfns (); |
f927c5ae JB |
1308 | |
1309 | syms_of_abbrev (); | |
1310 | syms_of_buffer (); | |
1311 | syms_of_bytecode (); | |
1312 | syms_of_callint (); | |
1313 | syms_of_casefiddle (); | |
1314 | syms_of_casetab (); | |
1315 | syms_of_callproc (); | |
270ce821 KH |
1316 | syms_of_category (); |
1317 | syms_of_ccl (); | |
1318 | syms_of_charset (); | |
f927c5ae JB |
1319 | syms_of_cmds (); |
1320 | #ifndef NO_DIR_LIBRARY | |
1321 | syms_of_dired (); | |
1322 | #endif /* not NO_DIR_LIBRARY */ | |
1323 | syms_of_display (); | |
1324 | syms_of_doc (); | |
1325 | syms_of_editfns (); | |
1326 | syms_of_emacs (); | |
1327 | syms_of_fileio (); | |
270ce821 | 1328 | syms_of_coding (); /* This should be after syms_of_fileio. */ |
f927c5ae JB |
1329 | #ifdef CLASH_DETECTION |
1330 | syms_of_filelock (); | |
1331 | #endif /* CLASH_DETECTION */ | |
1332 | syms_of_indent (); | |
c2c5ed2c | 1333 | syms_of_insdel (); |
f927c5ae JB |
1334 | syms_of_keyboard (); |
1335 | syms_of_keymap (); | |
1336 | syms_of_macros (); | |
1337 | syms_of_marker (); | |
1338 | syms_of_minibuf (); | |
1339 | syms_of_mocklisp (); | |
f927c5ae | 1340 | syms_of_process (); |
f927c5ae | 1341 | syms_of_search (); |
1cbd5d9d | 1342 | syms_of_frame (); |
f927c5ae | 1343 | syms_of_syntax (); |
0d934e7b | 1344 | syms_of_term (); |
f927c5ae | 1345 | syms_of_undo (); |
90d920b6 GM |
1346 | #ifdef HAVE_SOUND |
1347 | syms_of_sound (); | |
1348 | #endif | |
bef79ee4 | 1349 | |
bef79ee4 | 1350 | syms_of_textprop (); |
9d100795 | 1351 | syms_of_composite (); |
f927c5ae JB |
1352 | #ifdef VMS |
1353 | syms_of_vmsproc (); | |
1354 | #endif /* VMS */ | |
05687c54 RS |
1355 | #ifdef WINDOWSNT |
1356 | syms_of_ntproc (); | |
1357 | #endif /* WINDOWSNT */ | |
f927c5ae JB |
1358 | syms_of_window (); |
1359 | syms_of_xdisp (); | |
1360 | #ifdef HAVE_X_WINDOWS | |
72412588 | 1361 | syms_of_xterm (); |
f927c5ae | 1362 | syms_of_xfns (); |
270ce821 | 1363 | syms_of_fontset (); |
72412588 JB |
1364 | #ifdef HAVE_X11 |
1365 | syms_of_xselect (); | |
1366 | #endif | |
f927c5ae JB |
1367 | #endif /* HAVE_X_WINDOWS */ |
1368 | ||
1e9c210b | 1369 | #ifndef HAVE_NTGUI |
6c850f3c | 1370 | syms_of_xmenu (); |
1e9c210b | 1371 | #endif |
6c850f3c | 1372 | |
8ba50e1a | 1373 | #ifdef HAVE_NTGUI |
fbd6baed GV |
1374 | syms_of_w32term (); |
1375 | syms_of_w32fns (); | |
fbd6baed GV |
1376 | syms_of_w32select (); |
1377 | syms_of_w32menu (); | |
02062ac3 | 1378 | syms_of_fontset (); |
8ba50e1a GV |
1379 | #endif /* HAVE_NTGUI */ |
1380 | ||
f927c5ae JB |
1381 | #ifdef SYMS_SYSTEM |
1382 | SYMS_SYSTEM; | |
1383 | #endif | |
1384 | ||
1385 | #ifdef SYMS_MACHINE | |
1386 | SYMS_MACHINE; | |
1387 | #endif | |
1388 | ||
1389 | keys_of_casefiddle (); | |
1390 | keys_of_cmds (); | |
1391 | keys_of_buffer (); | |
1392 | keys_of_keyboard (); | |
1393 | keys_of_keymap (); | |
1394 | keys_of_macros (); | |
1395 | keys_of_minibuf (); | |
1396 | keys_of_window (); | |
5e67fbc2 | 1397 | keys_of_frame (); |
f927c5ae JB |
1398 | } |
1399 | ||
8bb697c0 RS |
1400 | if (!noninteractive) |
1401 | { | |
1402 | #ifdef VMS | |
1403 | init_vms_input ();/* init_display calls get_frame_size, that needs this */ | |
1404 | #endif /* VMS */ | |
1405 | init_display (); /* Determine terminal type. init_sys_modes uses results */ | |
1406 | } | |
1407 | init_keyboard (); /* This too must precede init_sys_modes */ | |
1408 | #ifdef VMS | |
1409 | init_vmsproc (); /* And this too. */ | |
1410 | #endif /* VMS */ | |
1411 | init_sys_modes (); /* Init system terminal modes (RAW or CBREAK, etc.) */ | |
90d920b6 GM |
1412 | #ifdef HAVE_X_WINDOWS |
1413 | init_xfns (); | |
1414 | #endif /* HAVE_X_WINDOWS */ | |
1415 | init_fns (); | |
8bb697c0 RS |
1416 | init_xdisp (); |
1417 | init_macros (); | |
1418 | init_editfns (); | |
8bb697c0 | 1419 | init_floatfns (); |
8bb697c0 RS |
1420 | #ifdef VMS |
1421 | init_vmsfns (); | |
1422 | #endif /* VMS */ | |
1423 | init_process (); | |
90d920b6 GM |
1424 | #ifdef HAVE_SOUND |
1425 | init_sound (); | |
1426 | #endif | |
8bb697c0 | 1427 | |
f927c5ae JB |
1428 | if (!initialized) |
1429 | { | |
e2925360 | 1430 | char *file; |
303901fb | 1431 | /* Handle -l loadup, args passed by Makefile. */ |
df6530f8 | 1432 | if (argmatch (argv, argc, "-l", "--load", 3, &file, &skip_args)) |
f927c5ae | 1433 | Vtop_level = Fcons (intern ("load"), |
e2925360 | 1434 | Fcons (build_string (file), Qnil)); |
f927c5ae JB |
1435 | #ifdef CANNOT_DUMP |
1436 | /* Unless next switch is -nl, load "loadup.el" first thing. */ | |
956e3c7e | 1437 | if (! no_loadup) |
f927c5ae JB |
1438 | Vtop_level = Fcons (intern ("load"), |
1439 | Fcons (build_string ("loadup.el"), Qnil)); | |
1440 | #endif /* CANNOT_DUMP */ | |
1441 | } | |
1442 | ||
93572b43 KH |
1443 | if (initialized) |
1444 | { | |
0269dedb RS |
1445 | #ifdef HAVE_TZSET |
1446 | { | |
1447 | /* If the execution TZ happens to be the same as the dump TZ, | |
1448 | change it to some other value and then change it back, | |
1449 | to force the underlying implementation to reload the TZ info. | |
1450 | This is needed on implementations that load TZ info from files, | |
1451 | since the TZ file contents may differ between dump and execution. */ | |
1452 | char *tz = getenv ("TZ"); | |
1453 | if (tz && !strcmp (tz, dump_tz)) | |
1454 | { | |
1455 | ++*tz; | |
1456 | tzset (); | |
1457 | --*tz; | |
1458 | } | |
1459 | } | |
1460 | #endif | |
93572b43 KH |
1461 | } |
1462 | ||
e610ea43 RS |
1463 | /* Gerd Moellmann <gerd@acm.org> says this makes profiling work on |
1464 | FreeBSD. It might work on some other systems too. | |
1465 | Give it a try and tell me if it works on your system. */ | |
6a97197e | 1466 | #if defined (__FreeBSD__) || defined (__linux) |
e610ea43 RS |
1467 | #ifdef PROFILING |
1468 | if (initialized) | |
1469 | { | |
1470 | extern void _mcleanup (); | |
1471 | extern char etext; | |
90d920b6 | 1472 | extern void safe_bcopy (); |
67a5596f GM |
1473 | extern void dump_opcode_frequencies (); |
1474 | ||
e610ea43 | 1475 | atexit (_mcleanup); |
90d920b6 GM |
1476 | /* This uses safe_bcopy because that function comes first in the |
1477 | Emacs executable. It might be better to use something that | |
1478 | gives the start of the text segment, but start_of_text is not | |
1479 | defined on all systems now. */ | |
1480 | monstartup (safe_bcopy, &etext); | |
e610ea43 RS |
1481 | } |
1482 | else | |
1483 | moncontrol (0); | |
1484 | #endif | |
1485 | #endif | |
1486 | ||
f927c5ae JB |
1487 | initialized = 1; |
1488 | ||
e7536cff RS |
1489 | #ifdef LOCALTIME_CACHE |
1490 | /* Some versions of localtime have a bug. They cache the value of the time | |
279cc2b8 JB |
1491 | zone rather than looking it up every time. Since localtime() is |
1492 | called to bolt the undumping time into the undumped emacs, this | |
afe9fae9 RS |
1493 | results in localtime ignoring the TZ environment variable. |
1494 | This flushes the new TZ value into localtime. */ | |
1495 | tzset (); | |
e7536cff | 1496 | #endif /* defined (LOCALTIME_CACHE) */ |
279cc2b8 | 1497 | |
f927c5ae JB |
1498 | /* Enter editor command loop. This never returns. */ |
1499 | Frecursive_edit (); | |
1500 | /* NOTREACHED */ | |
1501 | } | |
1502 | \f | |
081bef73 RS |
1503 | /* Sort the args so we can find the most important ones |
1504 | at the beginning of argv. */ | |
1505 | ||
1506 | /* First, here's a table of all the standard options. */ | |
1507 | ||
1508 | struct standard_args | |
1509 | { | |
1510 | char *name; | |
1511 | char *longname; | |
1512 | int priority; | |
1513 | int nargs; | |
1514 | }; | |
1515 | ||
1516 | struct standard_args standard_args[] = | |
1517 | { | |
05922407 RS |
1518 | { "-version", "--version", 150, 0 }, |
1519 | #ifdef HAVE_SHM | |
1520 | { "-nl", "--no-shared-memory", 140, 0 }, | |
1521 | #endif | |
2725719a | 1522 | #ifdef VMS |
05922407 | 1523 | { "-map", "--map-data", 130, 0 }, |
2725719a | 1524 | #endif |
05922407 RS |
1525 | { "-t", "--terminal", 120, 1 }, |
1526 | { "-nw", "--no-windows", 110, 0 }, | |
1527 | { "-batch", "--batch", 100, 0 }, | |
1528 | { "-help", "--help", 90, 0 }, | |
956e3c7e RS |
1529 | { "-no-unibyte", "--no-unibyte", 83, 0 }, |
1530 | { "-multibyte", "--multibyte", 82, 0 }, | |
1531 | { "-unibyte", "--unibyte", 81, 0 }, | |
1532 | { "-no-multibyte", "--no-multibyte", 80, 0 }, | |
05922407 | 1533 | #ifdef CANNOT_DUMP |
956e3c7e | 1534 | { "-nl", "--no-loadup", 70, 0 }, |
05922407 | 1535 | #endif |
956e3c7e RS |
1536 | /* -d must come last before the options handled in startup.el. */ |
1537 | { "-d", "--display", 60, 1 }, | |
1538 | { "-display", 0, 60, 1 }, | |
05922407 | 1539 | /* Now for the options handled in startup.el. */ |
081bef73 RS |
1540 | { "-q", "--no-init-file", 50, 0 }, |
1541 | { "-no-init-file", 0, 50, 0 }, | |
1542 | { "-no-site-file", "--no-site-file", 40, 0 }, | |
1543 | { "-u", "--user", 30, 1 }, | |
1544 | { "-user", 0, 30, 1 }, | |
1545 | { "-debug-init", "--debug-init", 20, 0 }, | |
adab4483 KH |
1546 | { "-i", "--icon-type", 15, 0 }, |
1547 | { "-itype", 0, 15, 0 }, | |
f2bc3538 | 1548 | { "-iconic", "--iconic", 15, 0 }, |
081bef73 RS |
1549 | { "-bg", "--background-color", 10, 1 }, |
1550 | { "-background", 0, 10, 1 }, | |
1551 | { "-fg", "--foreground-color", 10, 1 }, | |
1552 | { "-foreground", 0, 10, 1 }, | |
1553 | { "-bd", "--border-color", 10, 1 }, | |
1554 | { "-bw", "--border-width", 10, 1 }, | |
1555 | { "-ib", "--internal-border", 10, 1 }, | |
1556 | { "-ms", "--mouse-color", 10, 1 }, | |
1557 | { "-cr", "--cursor-color", 10, 1 }, | |
1558 | { "-fn", "--font", 10, 1 }, | |
1559 | { "-font", 0, 10, 1 }, | |
1560 | { "-g", "--geometry", 10, 1 }, | |
1561 | { "-geometry", 0, 10, 1 }, | |
1562 | { "-T", "--title", 10, 1 }, | |
ae63ae52 | 1563 | { "-title", 0, 10, 1 }, |
081bef73 RS |
1564 | { "-name", "--name", 10, 1 }, |
1565 | { "-xrm", "--xrm", 10, 1 }, | |
fcdeb5d9 RS |
1566 | { "-r", "--reverse-video", 5, 0 }, |
1567 | { "-rv", 0, 5, 0 }, | |
1568 | { "-reverse", 0, 5, 0 }, | |
ae63ae52 | 1569 | { "-hb", "--horizontal-scroll-bars", 5, 0 }, |
fcdeb5d9 | 1570 | { "-vb", "--vertical-scroll-bars", 5, 0 }, |
fcdeb5d9 RS |
1571 | /* These have the same priority as ordinary file name args, |
1572 | so they are not reordered with respect to those. */ | |
4af9e0b3 RS |
1573 | { "-L", "--directory", 0, 1 }, |
1574 | { "-directory", 0, 0, 1 }, | |
fcdeb5d9 RS |
1575 | { "-l", "--load", 0, 1 }, |
1576 | { "-load", 0, 0, 1 }, | |
1577 | { "-f", "--funcall", 0, 1 }, | |
1578 | { "-funcall", 0, 0, 1 }, | |
575985b1 | 1579 | { "-eval", "--eval", 0, 1 }, |
67a5596f | 1580 | { "-execute", "--execute", 0, 1 }, |
2e13f8e9 RS |
1581 | { "-find-file", "--find-file", 0, 1 }, |
1582 | { "-visit", "--visit", 0, 1 }, | |
67a5596f | 1583 | { "-file", "--file", 0, 1 }, |
fcdeb5d9 | 1584 | { "-insert", "--insert", 0, 1 }, |
f2bc3538 | 1585 | /* This should be processed after ordinary file name args and the like. */ |
fcdeb5d9 | 1586 | { "-kill", "--kill", -10, 0 }, |
081bef73 RS |
1587 | }; |
1588 | ||
1589 | /* Reorder the elements of ARGV (assumed to have ARGC elements) | |
1590 | so that the highest priority ones come first. | |
1591 | Do not change the order of elements of equal priority. | |
956e3c7e RS |
1592 | If an option takes an argument, keep it and its argument together. |
1593 | ||
1594 | If an option that takes no argument appears more | |
1595 | than once, eliminate all but one copy of it. */ | |
081bef73 RS |
1596 | |
1597 | static void | |
1598 | sort_args (argc, argv) | |
1599 | int argc; | |
1600 | char **argv; | |
1601 | { | |
1602 | char **new = (char **) xmalloc (sizeof (char *) * argc); | |
1603 | /* For each element of argv, | |
1604 | the corresponding element of options is: | |
1605 | 0 for an option that takes no arguments, | |
1606 | 1 for an option that takes one argument, etc. | |
1607 | -1 for an ordinary non-option argument. */ | |
6dad9359 | 1608 | int *options = (int *) xmalloc (sizeof (int) * argc); |
081bef73 RS |
1609 | int *priority = (int *) xmalloc (sizeof (int) * argc); |
1610 | int to = 1; | |
956e3c7e | 1611 | int incoming_used = 1; |
081bef73 RS |
1612 | int from; |
1613 | int i; | |
1614 | ||
1615 | /* Categorize all the options, | |
1616 | and figure out which argv elts are option arguments. */ | |
1617 | for (from = 1; from < argc; from++) | |
1618 | { | |
1619 | options[from] = -1; | |
fcdeb5d9 | 1620 | priority[from] = 0; |
081bef73 RS |
1621 | if (argv[from][0] == '-') |
1622 | { | |
1623 | int match, thislen; | |
1624 | char *equals; | |
1625 | ||
c96f26f4 RS |
1626 | /* If we have found "--", don't consider |
1627 | any more arguments as options. */ | |
249443b6 | 1628 | if (argv[from][1] == '-' && argv[from][2] == 0) |
c96f26f4 RS |
1629 | { |
1630 | /* Leave the "--", and everything following it, at the end. */ | |
1631 | for (; from < argc; from++) | |
1632 | { | |
1633 | priority[from] = -100; | |
1634 | options[from] = -1; | |
1635 | } | |
1636 | break; | |
1637 | } | |
1638 | ||
081bef73 RS |
1639 | /* Look for a match with a known old-fashioned option. */ |
1640 | for (i = 0; i < sizeof (standard_args) / sizeof (standard_args[0]); i++) | |
1641 | if (!strcmp (argv[from], standard_args[i].name)) | |
1642 | { | |
1643 | options[from] = standard_args[i].nargs; | |
1644 | priority[from] = standard_args[i].priority; | |
fd76ec52 RS |
1645 | if (from + standard_args[i].nargs >= argc) |
1646 | fatal ("Option `%s' requires an argument\n", argv[from]); | |
081bef73 RS |
1647 | from += standard_args[i].nargs; |
1648 | goto done; | |
1649 | } | |
1650 | ||
1651 | /* Look for a match with a known long option. | |
1652 | MATCH is -1 if no match so far, -2 if two or more matches so far, | |
1653 | >= 0 (the table index of the match) if just one match so far. */ | |
1654 | if (argv[from][1] == '-') | |
1655 | { | |
1656 | match = -1; | |
1657 | thislen = strlen (argv[from]); | |
1658 | equals = index (argv[from], '='); | |
1659 | if (equals != 0) | |
1660 | thislen = equals - argv[from]; | |
1661 | ||
f609ef57 KH |
1662 | for (i = 0; |
1663 | i < sizeof (standard_args) / sizeof (standard_args[0]); i++) | |
1664 | if (standard_args[i].longname | |
1665 | && !strncmp (argv[from], standard_args[i].longname, | |
1666 | thislen)) | |
081bef73 RS |
1667 | { |
1668 | if (match == -1) | |
1669 | match = i; | |
1670 | else | |
1671 | match = -2; | |
1672 | } | |
1673 | ||
1674 | /* If we found exactly one match, use that. */ | |
1675 | if (match >= 0) | |
1676 | { | |
1677 | options[from] = standard_args[match].nargs; | |
1678 | priority[from] = standard_args[match].priority; | |
1679 | /* If --OPTION=VALUE syntax is used, | |
1680 | this option uses just one argv element. */ | |
1681 | if (equals != 0) | |
1682 | options[from] = 0; | |
fd76ec52 RS |
1683 | if (from + options[from] >= argc) |
1684 | fatal ("Option `%s' requires an argument\n", argv[from]); | |
081bef73 RS |
1685 | from += options[from]; |
1686 | } | |
1687 | } | |
1688 | done: ; | |
1689 | } | |
1690 | } | |
1691 | ||
1692 | /* Copy the arguments, in order of decreasing priority, to NEW. */ | |
1693 | new[0] = argv[0]; | |
956e3c7e | 1694 | while (incoming_used < argc) |
081bef73 RS |
1695 | { |
1696 | int best = -1; | |
2c70c992 | 1697 | int best_priority = -9999; |
081bef73 RS |
1698 | |
1699 | /* Find the highest priority remaining option. | |
1700 | If several have equal priority, take the first of them. */ | |
1701 | for (from = 1; from < argc; from++) | |
1702 | { | |
1703 | if (argv[from] != 0 && priority[from] > best_priority) | |
1704 | { | |
1705 | best_priority = priority[from]; | |
1706 | best = from; | |
1707 | } | |
1708 | /* Skip option arguments--they are tied to the options. */ | |
1709 | if (options[from] > 0) | |
1710 | from += options[from]; | |
1711 | } | |
1712 | ||
1713 | if (best < 0) | |
1714 | abort (); | |
1715 | ||
956e3c7e RS |
1716 | /* Copy the highest priority remaining option, with its args, to NEW. |
1717 | Unless it is a duplicate of the previous one. */ | |
1718 | if (! (options[best] == 0 | |
1719 | && ! strcmp (new[to - 1], argv[best]))) | |
1720 | { | |
1721 | new[to++] = argv[best]; | |
1722 | for (i = 0; i < options[best]; i++) | |
1723 | new[to++] = argv[best + i + 1]; | |
1724 | } | |
1725 | ||
1726 | incoming_used += 1 + (options[best] > 0 ? options[best] : 0); | |
081bef73 RS |
1727 | |
1728 | /* Clear out this option in ARGV. */ | |
1729 | argv[best] = 0; | |
1730 | for (i = 0; i < options[best]; i++) | |
1731 | argv[best + i + 1] = 0; | |
1732 | } | |
1733 | ||
81b7af72 RS |
1734 | /* If duplicate options were deleted, fill up extra space with null ptrs. */ |
1735 | while (to < argc) | |
1736 | new[to++] = 0; | |
1737 | ||
6dad9359 | 1738 | bcopy (new, argv, sizeof (char *) * argc); |
0bf591da RS |
1739 | |
1740 | free (options); | |
1741 | free (new); | |
1742 | free (priority); | |
081bef73 RS |
1743 | } |
1744 | \f | |
f927c5ae | 1745 | DEFUN ("kill-emacs", Fkill_emacs, Skill_emacs, 0, 1, "P", |
edc8ae07 | 1746 | "Exit the Emacs job and kill it.\n\ |
f927c5ae JB |
1747 | If ARG is an integer, return ARG as the exit program code.\n\ |
1748 | If ARG is a string, stuff it as keyboard input.\n\n\ | |
1749 | The value of `kill-emacs-hook', if not void,\n\ | |
1750 | is a list of functions (of no args),\n\ | |
1751 | all of which are called before Emacs is actually killed.") | |
1752 | (arg) | |
1753 | Lisp_Object arg; | |
1754 | { | |
f927c5ae JB |
1755 | struct gcpro gcpro1; |
1756 | ||
1757 | GCPRO1 (arg); | |
1758 | ||
1759 | if (feof (stdin)) | |
1760 | arg = Qt; | |
1761 | ||
2447c626 | 1762 | if (!NILP (Vrun_hooks) && !noninteractive) |
f927c5ae JB |
1763 | call1 (Vrun_hooks, intern ("kill-emacs-hook")); |
1764 | ||
f927c5ae JB |
1765 | UNGCPRO; |
1766 | ||
1767 | /* Is it really necessary to do this deassign | |
1768 | when we are going to exit anyway? */ | |
1769 | /* #ifdef VMS | |
1770 | stop_vms_input (); | |
1771 | #endif */ | |
40be253a | 1772 | |
d0068e25 | 1773 | shut_down_emacs (0, 0, STRINGP (arg) ? arg : Qnil); |
40be253a | 1774 | |
58545838 KH |
1775 | /* If we have an auto-save list file, |
1776 | kill it because we are exiting Emacs deliberately (not crashing). | |
1777 | Do it after shut_down_emacs, which does an auto-save. */ | |
1778 | if (STRINGP (Vauto_save_list_file_name)) | |
1779 | unlink (XSTRING (Vauto_save_list_file_name)->data); | |
1780 | ||
55ccc0b3 | 1781 | exit (INTEGERP (arg) ? XINT (arg) |
f927c5ae JB |
1782 | #ifdef VMS |
1783 | : 1 | |
1784 | #else | |
1785 | : 0 | |
1786 | #endif | |
1787 | ); | |
1788 | /* NOTREACHED */ | |
1789 | } | |
40be253a JB |
1790 | |
1791 | ||
1792 | /* Perform an orderly shutdown of Emacs. Autosave any modified | |
1793 | buffers, kill any child processes, clean up the terminal modes (if | |
1794 | we're in the foreground), and other stuff like that. Don't perform | |
1795 | any redisplay; this may be called when Emacs is shutting down in | |
1796 | the background, or after its X connection has died. | |
1797 | ||
1798 | If SIG is a signal number, print a message for it. | |
1799 | ||
1800 | This is called by fatal signal handlers, X protocol error handlers, | |
1801 | and Fkill_emacs. */ | |
f7ab4e3d | 1802 | |
40be253a | 1803 | void |
f7ab4e3d | 1804 | shut_down_emacs (sig, no_x, stuff) |
41423a80 | 1805 | int sig, no_x; |
f7ab4e3d | 1806 | Lisp_Object stuff; |
40be253a | 1807 | { |
829d872b RS |
1808 | /* Prevent running of hooks from now on. */ |
1809 | Vrun_hooks = Qnil; | |
1810 | ||
40be253a JB |
1811 | /* If we are controlling the terminal, reset terminal modes */ |
1812 | #ifdef EMACS_HAVE_TTY_PGRP | |
1813 | { | |
d04d81d2 RS |
1814 | int pgrp = EMACS_GETPGRP (0); |
1815 | ||
40be253a JB |
1816 | int tpgrp; |
1817 | if (EMACS_GET_TTY_PGRP (0, &tpgrp) != -1 | |
5a570e37 | 1818 | && tpgrp == pgrp) |
40be253a JB |
1819 | { |
1820 | fflush (stdout); | |
1821 | reset_sys_modes (); | |
1822 | if (sig && sig != SIGTERM) | |
1823 | fprintf (stderr, "Fatal error (%d).", sig); | |
1824 | } | |
1825 | } | |
1826 | #else | |
1827 | fflush (stdout); | |
1828 | reset_sys_modes (); | |
1829 | #endif | |
1830 | ||
f7ab4e3d RS |
1831 | stuff_buffered_input (stuff); |
1832 | ||
40be253a JB |
1833 | kill_buffer_processes (Qnil); |
1834 | Fdo_auto_save (Qt, Qnil); | |
1835 | ||
1836 | #ifdef CLASH_DETECTION | |
1837 | unlock_all_files (); | |
1838 | #endif | |
1839 | ||
1840 | #ifdef VMS | |
1841 | kill_vms_processes (); | |
1842 | #endif | |
1843 | ||
5e7f8733 | 1844 | #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */ |
41423a80 | 1845 | #ifdef HAVE_X_WINDOWS |
f7511647 RS |
1846 | /* It's not safe to call intern here. Maybe we are crashing. */ |
1847 | if (!noninteractive && SYMBOLP (Vwindow_system) | |
1848 | && XSYMBOL (Vwindow_system)->name->size == 1 | |
1849 | && XSYMBOL (Vwindow_system)->name->data[0] == 'x' | |
1850 | && ! no_x) | |
41423a80 RS |
1851 | Fx_close_current_connection (); |
1852 | #endif /* HAVE_X_WINDOWS */ | |
5e7f8733 | 1853 | #endif |
41423a80 | 1854 | |
40be253a JB |
1855 | #ifdef SIGIO |
1856 | /* There is a tendency for a SIGIO signal to arrive within exit, | |
1857 | and cause a SIGHUP because the input descriptor is already closed. */ | |
1858 | unrequest_sigio (); | |
1859 | signal (SIGIO, SIG_IGN); | |
1860 | #endif | |
41f339d4 RS |
1861 | |
1862 | #ifdef WINDOWSNT | |
1863 | term_ntproc (); | |
1864 | #endif | |
d546e578 | 1865 | |
90d920b6 | 1866 | check_glyph_memory (); |
189437a7 | 1867 | check_message_stack (); |
90d920b6 | 1868 | |
d546e578 EZ |
1869 | #ifdef MSDOS |
1870 | dos_cleanup (); | |
1871 | #endif | |
40be253a JB |
1872 | } |
1873 | ||
1874 | ||
f927c5ae JB |
1875 | \f |
1876 | #ifndef CANNOT_DUMP | |
f927c5ae JB |
1877 | |
1878 | #ifdef HAVE_SHM | |
1879 | ||
1880 | DEFUN ("dump-emacs-data", Fdump_emacs_data, Sdump_emacs_data, 1, 1, 0, | |
1881 | "Dump current state of Emacs into data file FILENAME.\n\ | |
1882 | This function exists on systems that use HAVE_SHM.") | |
c9aae259 EN |
1883 | (filename) |
1884 | Lisp_Object filename; | |
f927c5ae | 1885 | { |
55697f5b | 1886 | extern char my_edata[]; |
f927c5ae | 1887 | Lisp_Object tem; |
f927c5ae | 1888 | |
c9aae259 EN |
1889 | CHECK_STRING (filename, 0); |
1890 | filename = Fexpand_file_name (filename, Qnil); | |
f927c5ae JB |
1891 | |
1892 | tem = Vpurify_flag; | |
1893 | Vpurify_flag = Qnil; | |
1894 | ||
1895 | fflush (stdout); | |
1896 | /* Tell malloc where start of impure now is */ | |
1897 | /* Also arrange for warnings when nearly out of space. */ | |
1898 | #ifndef SYSTEM_MALLOC | |
1090a161 | 1899 | memory_warnings (my_edata, malloc_warning); |
f927c5ae | 1900 | #endif |
c9aae259 | 1901 | map_out_data (XSTRING (filename)->data); |
f927c5ae JB |
1902 | |
1903 | Vpurify_flag = tem; | |
1904 | ||
1905 | return Qnil; | |
1906 | } | |
1907 | ||
1908 | #else /* not HAVE_SHM */ | |
1909 | ||
1910 | DEFUN ("dump-emacs", Fdump_emacs, Sdump_emacs, 2, 2, 0, | |
1911 | "Dump current state of Emacs into executable file FILENAME.\n\ | |
1912 | Take symbols from SYMFILE (presumably the file you executed to run Emacs).\n\ | |
1913 | This is used in the file `loadup.el' when building Emacs.\n\ | |
1914 | \n\ | |
87a98b1a | 1915 | You must run Emacs in batch mode in order to dump it.") |
c9aae259 EN |
1916 | (filename, symfile) |
1917 | Lisp_Object filename, symfile; | |
f927c5ae | 1918 | { |
55697f5b | 1919 | extern char my_edata[]; |
f927c5ae | 1920 | Lisp_Object tem; |
1b7ddf4f RS |
1921 | Lisp_Object symbol; |
1922 | int count = specpdl_ptr - specpdl; | |
f927c5ae | 1923 | |
87a98b1a RS |
1924 | if (! noninteractive) |
1925 | error ("Dumping Emacs works only in batch mode"); | |
1926 | ||
1b7ddf4f RS |
1927 | /* Bind `command-line-processed' to nil before dumping, |
1928 | so that the dumped Emacs will process its command line | |
1929 | and set up to work with X windows if appropriate. */ | |
1930 | symbol = intern ("command-line-process"); | |
1931 | specbind (symbol, Qnil); | |
1932 | ||
c9aae259 EN |
1933 | CHECK_STRING (filename, 0); |
1934 | filename = Fexpand_file_name (filename, Qnil); | |
1935 | if (!NILP (symfile)) | |
f927c5ae | 1936 | { |
c9aae259 EN |
1937 | CHECK_STRING (symfile, 0); |
1938 | if (XSTRING (symfile)->size) | |
1939 | symfile = Fexpand_file_name (symfile, Qnil); | |
f927c5ae JB |
1940 | } |
1941 | ||
1942 | tem = Vpurify_flag; | |
1943 | Vpurify_flag = Qnil; | |
1944 | ||
0269dedb RS |
1945 | #ifdef HAVE_TZSET |
1946 | set_time_zone_rule (dump_tz); | |
1947 | #ifndef LOCALTIME_CACHE | |
1948 | /* Force a tz reload, since set_time_zone_rule doesn't. */ | |
1949 | tzset (); | |
1950 | #endif | |
1951 | #endif | |
1952 | ||
f927c5ae JB |
1953 | fflush (stdout); |
1954 | #ifdef VMS | |
c9aae259 | 1955 | mapout_data (XSTRING (filename)->data); |
f927c5ae JB |
1956 | #else |
1957 | /* Tell malloc where start of impure now is */ | |
1958 | /* Also arrange for warnings when nearly out of space. */ | |
1959 | #ifndef SYSTEM_MALLOC | |
cc5f52cb RS |
1960 | #ifndef WINDOWSNT |
1961 | /* On Windows, this was done before dumping, and that once suffices. | |
1962 | Meanwhile, my_edata is not valid on Windows. */ | |
cb37cf78 | 1963 | memory_warnings (my_edata, malloc_warning); |
cc5f52cb | 1964 | #endif /* not WINDOWSNT */ |
15aaf1b5 RS |
1965 | #endif |
1966 | #ifdef DOUG_LEA_MALLOC | |
1967 | malloc_state_ptr = malloc_get_state (); | |
f927c5ae | 1968 | #endif |
c9aae259 EN |
1969 | unexec (XSTRING (filename)->data, |
1970 | !NILP (symfile) ? XSTRING (symfile)->data : 0, my_edata, 0, 0); | |
15aaf1b5 RS |
1971 | #ifdef DOUG_LEA_MALLOC |
1972 | free (malloc_state_ptr); | |
1973 | #endif | |
f927c5ae JB |
1974 | #endif /* not VMS */ |
1975 | ||
1976 | Vpurify_flag = tem; | |
1977 | ||
1b7ddf4f | 1978 | return unbind_to (count, Qnil); |
f927c5ae JB |
1979 | } |
1980 | ||
1981 | #endif /* not HAVE_SHM */ | |
1982 | ||
1983 | #endif /* not CANNOT_DUMP */ | |
1984 | \f | |
68c45bf0 PE |
1985 | #if HAVE_SETLOCALE |
1986 | /* Recover from setlocale (LC_ALL, ""). */ | |
1987 | void | |
1988 | fixup_locale () | |
1989 | { | |
68c45bf0 PE |
1990 | /* The Emacs Lisp reader needs LC_NUMERIC to be "C", |
1991 | so that numbers are read and printed properly for Emacs Lisp. */ | |
1992 | setlocale (LC_NUMERIC, "C"); | |
68c45bf0 PE |
1993 | } |
1994 | ||
0c8559bb PE |
1995 | /* Set system locale CATEGORY, with previous locale *PLOCALE, to |
1996 | DESIRED_LOCALE. */ | |
68c45bf0 PE |
1997 | static void |
1998 | synchronize_locale (category, plocale, desired_locale) | |
1999 | int category; | |
2000 | Lisp_Object *plocale; | |
2001 | Lisp_Object desired_locale; | |
2002 | { | |
0c8559bb PE |
2003 | if (! EQ (*plocale, desired_locale)) |
2004 | { | |
2005 | *plocale = desired_locale; | |
2006 | setlocale (category, (STRINGP (desired_locale) | |
59c65f1e | 2007 | ? (char *)(XSTRING (desired_locale)->data) |
0c8559bb PE |
2008 | : "")); |
2009 | } | |
68c45bf0 PE |
2010 | } |
2011 | ||
ca9c0567 | 2012 | /* Set system time locale to match Vsystem_time_locale, if possible. */ |
68c45bf0 | 2013 | void |
ca9c0567 | 2014 | synchronize_system_time_locale () |
68c45bf0 | 2015 | { |
ca9c0567 PE |
2016 | synchronize_locale (LC_TIME, &Vprevious_system_time_locale, |
2017 | Vsystem_time_locale); | |
68c45bf0 PE |
2018 | } |
2019 | ||
ca9c0567 PE |
2020 | /* Set system messages locale to match Vsystem_messages_locale, if |
2021 | possible. */ | |
68c45bf0 | 2022 | void |
ca9c0567 | 2023 | synchronize_system_messages_locale () |
68c45bf0 PE |
2024 | { |
2025 | #ifdef LC_MESSAGES | |
ca9c0567 PE |
2026 | synchronize_locale (LC_MESSAGES, &Vprevious_system_messages_locale, |
2027 | Vsystem_messages_locale); | |
68c45bf0 PE |
2028 | #endif |
2029 | } | |
2030 | #endif /* HAVE_SETLOCALE */ | |
2031 | \f | |
4b163808 | 2032 | #ifndef SEPCHAR |
f927c5ae JB |
2033 | #define SEPCHAR ':' |
2034 | #endif | |
2035 | ||
2036 | Lisp_Object | |
2037 | decode_env_path (evarname, defalt) | |
2038 | char *evarname, *defalt; | |
2039 | { | |
2040 | register char *path, *p; | |
213d0b1f | 2041 | Lisp_Object lpath, element, tem; |
f927c5ae | 2042 | |
2447c626 JB |
2043 | /* It's okay to use getenv here, because this function is only used |
2044 | to initialize variables when Emacs starts up, and isn't called | |
2045 | after that. */ | |
e065a56e JB |
2046 | if (evarname != 0) |
2047 | path = (char *) getenv (evarname); | |
2048 | else | |
2049 | path = 0; | |
f927c5ae JB |
2050 | if (!path) |
2051 | path = defalt; | |
6a30e6d6 RS |
2052 | #ifdef DOS_NT |
2053 | /* Ensure values from the environment use the proper directory separator. */ | |
2054 | if (path) | |
2055 | { | |
2056 | p = alloca (strlen (path) + 1); | |
2057 | strcpy (p, path); | |
2058 | path = p; | |
2059 | ||
2060 | if ('/' == DIRECTORY_SEP) | |
2061 | dostounix_filename (path); | |
2062 | else | |
2063 | unixtodos_filename (path); | |
2064 | } | |
2065 | #endif | |
f927c5ae JB |
2066 | lpath = Qnil; |
2067 | while (1) | |
2068 | { | |
2069 | p = index (path, SEPCHAR); | |
2070 | if (!p) p = path + strlen (path); | |
213d0b1f RS |
2071 | element = (p - path ? make_string (path, p - path) |
2072 | : build_string (".")); | |
2073 | ||
2074 | /* Add /: to the front of the name | |
2075 | if it would otherwise be treated as magic. */ | |
2076 | tem = Ffind_file_name_handler (element, Qt); | |
2077 | if (! NILP (tem)) | |
2078 | element = concat2 (build_string ("/:"), element); | |
2079 | ||
2080 | lpath = Fcons (element, lpath); | |
f927c5ae JB |
2081 | if (*p) |
2082 | path = p + 1; | |
2083 | else | |
2084 | break; | |
2085 | } | |
2086 | return Fnreverse (lpath); | |
2087 | } | |
2088 | ||
dfcf069d | 2089 | void |
f927c5ae JB |
2090 | syms_of_emacs () |
2091 | { | |
213d0b1f RS |
2092 | Qfile_name_handler_alist = intern ("file-name-handler-alist"); |
2093 | staticpro (&Qfile_name_handler_alist); | |
2094 | ||
83591e66 | 2095 | #ifndef CANNOT_DUMP |
f927c5ae JB |
2096 | #ifdef HAVE_SHM |
2097 | defsubr (&Sdump_emacs_data); | |
2098 | #else | |
2099 | defsubr (&Sdump_emacs); | |
83591e66 | 2100 | #endif |
f927c5ae JB |
2101 | #endif |
2102 | ||
2103 | defsubr (&Skill_emacs); | |
2104 | ||
59653951 | 2105 | defsubr (&Sinvocation_name); |
ace40a69 | 2106 | defsubr (&Sinvocation_directory); |
59653951 | 2107 | |
f927c5ae JB |
2108 | DEFVAR_LISP ("command-line-args", &Vcommand_line_args, |
2109 | "Args passed by shell to Emacs, as a list of strings."); | |
2110 | ||
2111 | DEFVAR_LISP ("system-type", &Vsystem_type, | |
2112 | "Value is symbol indicating type of operating system you are using."); | |
2113 | Vsystem_type = intern (SYSTEM_TYPE); | |
2114 | ||
271c7b7c RS |
2115 | DEFVAR_LISP ("system-configuration", &Vsystem_configuration, |
2116 | "Value is string indicating configuration Emacs was built for."); | |
f7511647 | 2117 | Vsystem_configuration = build_string (EMACS_CONFIGURATION); |
271c7b7c | 2118 | |
f0fc0b1a KH |
2119 | DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options, |
2120 | "String containing the configuration options Emacs was built with."); | |
2121 | Vsystem_configuration_options = build_string (EMACS_CONFIG_OPTIONS); | |
2122 | ||
f927c5ae JB |
2123 | DEFVAR_BOOL ("noninteractive", &noninteractive1, |
2124 | "Non-nil means Emacs is running without interactive terminal."); | |
e5d77022 | 2125 | |
e5d77022 | 2126 | DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook, |
edc8ae07 JB |
2127 | "Hook to be run whenever kill-emacs is called.\n\ |
2128 | Since kill-emacs may be invoked when the terminal is disconnected (or\n\ | |
2129 | in other similar situations), functions placed on this hook should not\n\ | |
9f232a5d RS |
2130 | expect to be able to interact with the user. To ask for confirmation,\n\ |
2131 | see `kill-emacs-query-functions' instead."); | |
edc8ae07 | 2132 | Vkill_emacs_hook = Qnil; |
3005da00 | 2133 | |
7317d9e8 RS |
2134 | #ifdef SIGUSR1 |
2135 | DEFVAR_LISP ("signal-USR1-hook", &Vsignal_USR1_hook, | |
3e75bb9e | 2136 | "Hook to be run whenever emacs receives a USR1 signal"); |
7317d9e8 RS |
2137 | Vsignal_USR1_hook = Qnil; |
2138 | #ifdef SIGUSR2 | |
2139 | DEFVAR_LISP ("signal-USR2-hook", &Vsignal_USR2_hook, | |
3e75bb9e | 2140 | "Hook to be run whenever emacs receives a USR2 signal"); |
7317d9e8 RS |
2141 | Vsignal_USR2_hook = Qnil; |
2142 | #endif | |
2143 | #endif | |
2144 | ||
2145 | ||
3005da00 RS |
2146 | DEFVAR_INT ("emacs-priority", &emacs_priority, |
2147 | "Priority for Emacs to run at.\n\ | |
2148 | This value is effective only if set before Emacs is dumped,\n\ | |
2149 | and only if the Emacs executable is installed with setuid to permit\n\ | |
621ecf99 | 2150 | it to change priority. (Emacs sets its uid back to the real uid.)\n\ |
a422068f | 2151 | Currently, you need to define SET_EMACS_PRIORITY in `config.h'\n\ |
e7a9e1c3 RS |
2152 | before you compile Emacs, to enable the code for this feature."); |
2153 | emacs_priority = 0; | |
074a066b GV |
2154 | |
2155 | DEFVAR_LISP ("path-separator", &Vpath_separator, | |
2156 | "The directory separator in search paths, as a string."); | |
2157 | { | |
2158 | char c = SEPCHAR; | |
2159 | Vpath_separator = make_string (&c, 1); | |
2160 | } | |
59653951 | 2161 | |
f67de86f RS |
2162 | DEFVAR_LISP ("invocation-name", &Vinvocation_name, |
2163 | "The program name that was used to run Emacs.\n\ | |
2164 | Any directory names are omitted."); | |
2165 | ||
2166 | DEFVAR_LISP ("invocation-directory", &Vinvocation_directory, | |
2167 | "The directory in which the Emacs executable was found, to run it.\n\ | |
2168 | The value is nil if that directory's name is not known."); | |
2169 | ||
2170 | DEFVAR_LISP ("installation-directory", &Vinstallation_directory, | |
2171 | "A directory within which to look for the `lib-src' and `etc' directories.\n\ | |
2172 | This is non-nil when we can't find those directories in their standard\n\ | |
2173 | installed locations, but we can find them\n\ | |
2174 | near where the Emacs executable was found."); | |
07f4d123 | 2175 | Vinstallation_directory = Qnil; |
68c45bf0 | 2176 | |
ca9c0567 | 2177 | DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale, |
68c45bf0 | 2178 | "System locale for messages."); |
ca9c0567 | 2179 | Vsystem_messages_locale = Qnil; |
68c45bf0 | 2180 | |
ca9c0567 PE |
2181 | DEFVAR_LISP ("previous-system-messages-locale", |
2182 | &Vprevious_system_messages_locale, | |
68c45bf0 | 2183 | "Most recently used system locale for messages."); |
ca9c0567 | 2184 | Vprevious_system_messages_locale = Qnil; |
68c45bf0 | 2185 | |
ca9c0567 | 2186 | DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale, |
68c45bf0 | 2187 | "System locale for time."); |
ca9c0567 | 2188 | Vsystem_time_locale = Qnil; |
68c45bf0 | 2189 | |
ca9c0567 | 2190 | DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale, |
68c45bf0 | 2191 | "Most recently used system locale for time."); |
ca9c0567 | 2192 | Vprevious_system_time_locale = Qnil; |
f927c5ae | 2193 | } |