Commit | Line | Data |
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f927c5ae | 1 | /* Fully extensible Emacs, running on Unix, intended for GNU. |
6c145d35 EZ |
2 | Copyright (C) 1985,86,87,93,94,95,97,98,1999,2001 |
3 | Free Software Foundation, Inc. | |
f927c5ae JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
40be253a | 9 | the Free Software Foundation; either version 2, or (at your option) |
f927c5ae JB |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
5a7670bf RS |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
f927c5ae JB |
21 | |
22 | ||
68c45bf0 | 23 | #include <config.h> |
f927c5ae JB |
24 | #include <signal.h> |
25 | #include <errno.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 | ||
cda4a5fd GM |
35 | #ifdef HAVE_UNISTD_H |
36 | #include <unistd.h> | |
37 | #endif | |
38 | ||
488b7cb3 | 39 | #ifdef BSD_SYSTEM |
f927c5ae JB |
40 | #include <sys/ioctl.h> |
41 | #endif | |
42 | ||
f927c5ae JB |
43 | #include "lisp.h" |
44 | #include "commands.h" | |
bef79ee4 | 45 | #include "intervals.h" |
a08a816a | 46 | #include "buffer.h" |
f927c5ae | 47 | |
edc8ae07 | 48 | #include "systty.h" |
6c3a4e9d | 49 | #include "blockinput.h" |
8090eb09 | 50 | #include "syssignal.h" |
6c362a8b | 51 | #include "process.h" |
5bda49c6 | 52 | #include "termhooks.h" |
dfcf069d | 53 | #include "keyboard.h" |
a41f8bed | 54 | |
68c45bf0 PE |
55 | #ifdef HAVE_SETLOCALE |
56 | #include <locale.h> | |
57 | #endif | |
58 | ||
53c58b5d RS |
59 | #ifdef HAVE_SETRLIMIT |
60 | #include <sys/time.h> | |
61 | #include <sys/resource.h> | |
62 | #endif | |
63 | ||
f927c5ae JB |
64 | #ifndef O_RDWR |
65 | #define O_RDWR 2 | |
66 | #endif | |
67 | ||
f95c3f91 | 68 | #ifdef HAVE_SETPGID |
2b7e8799 | 69 | #if !defined (USG) || defined (BSD_PGRPS) |
90553aa3 | 70 | #undef setpgrp |
f95c3f91 GM |
71 | #define setpgrp setpgid |
72 | #endif | |
2b7e8799 | 73 | #endif |
f95c3f91 | 74 | |
90553aa3 DL |
75 | extern void malloc_warning P_ ((char *)); |
76 | extern void set_time_zone_rule P_ ((char *)); | |
8892f40b GM |
77 | #ifdef HAVE_INDEX |
78 | extern char *index P_ ((const char *, int)); | |
79 | #endif | |
43165242 | 80 | |
30aa3f19 GM |
81 | /* Make these values available in GDB, which doesn't see macros. */ |
82 | ||
83 | EMACS_INT gdb_valbits = VALBITS; | |
84 | EMACS_INT gdb_gctypebits = GCTYPEBITS; | |
85 | EMACS_INT gdb_emacs_intbits = sizeof (EMACS_INT) * BITS_PER_CHAR; | |
86 | #ifdef DATA_SEG_BITS | |
87 | EMACS_INT gdb_data_seg_bits = DATA_SEG_BITS; | |
88 | #else | |
89 | EMACS_INT gdb_data_seg_bits = 0; | |
90 | #endif | |
00da0e4a | 91 | EMACS_INT PVEC_FLAG = PSEUDOVECTOR_FLAG; |
30aa3f19 | 92 | |
f927c5ae JB |
93 | /* Command line args from shell, as list of strings */ |
94 | Lisp_Object Vcommand_line_args; | |
95 | ||
59653951 JB |
96 | /* The name under which Emacs was invoked, with any leading directory |
97 | names discarded. */ | |
98 | Lisp_Object Vinvocation_name; | |
99 | ||
ace40a69 RS |
100 | /* The directory name from which Emacs was invoked. */ |
101 | Lisp_Object Vinvocation_directory; | |
102 | ||
07f4d123 RS |
103 | /* The directory name in which to find subdirs such as lisp and etc. |
104 | nil means get them only from PATH_LOADSEARCH. */ | |
105 | Lisp_Object Vinstallation_directory; | |
106 | ||
e5d77022 JB |
107 | /* Hook run by `kill-emacs' before it does really anything. */ |
108 | Lisp_Object Vkill_emacs_hook; | |
109 | ||
7317d9e8 RS |
110 | #ifdef SIGUSR1 |
111 | /* Hooks for signal USR1 and USR2 handing */ | |
112 | Lisp_Object Vsignal_USR1_hook; | |
113 | #ifdef SIGUSR2 | |
114 | Lisp_Object Vsignal_USR2_hook; | |
115 | #endif | |
116 | #endif | |
117 | ||
074a066b GV |
118 | /* Search path separator. */ |
119 | Lisp_Object Vpath_separator; | |
120 | ||
f927c5ae JB |
121 | /* Set nonzero after Emacs has started up the first time. |
122 | Prevents reinitialization of the Lisp world and keymaps | |
123 | on subsequent starts. */ | |
124 | int initialized; | |
125 | ||
15aaf1b5 RS |
126 | #ifdef DOUG_LEA_MALLOC |
127 | /* Preserves a pointer to the memory allocated that copies that | |
128 | static data inside glibc's malloc. */ | |
129 | void *malloc_state_ptr; | |
130 | /* From glibc, a routine that returns a copy of the malloc internal state. */ | |
131 | extern void *malloc_get_state (); | |
132 | /* From glibc, a routine that overwrites the malloc internal state. */ | |
133 | extern void malloc_set_state (); | |
7c9cd446 AS |
134 | /* Non-zero if the MALLOC_CHECK_ enviroment variable was set while |
135 | dumping. Used to work around a bug in glibc's malloc. */ | |
136 | int malloc_using_checking; | |
15aaf1b5 RS |
137 | #endif |
138 | ||
271c7b7c | 139 | /* Variable whose value is symbol giving operating system type. */ |
f927c5ae | 140 | Lisp_Object Vsystem_type; |
271c7b7c RS |
141 | |
142 | /* Variable whose value is string giving configuration built for. */ | |
143 | Lisp_Object Vsystem_configuration; | |
f0fc0b1a KH |
144 | |
145 | /* Variable whose value is string giving configuration options, | |
146 | for use when reporting bugs. */ | |
147 | Lisp_Object Vsystem_configuration_options; | |
148 | ||
213d0b1f RS |
149 | Lisp_Object Qfile_name_handler_alist; |
150 | ||
68c45bf0 | 151 | /* Current and previous system locales for messages and time. */ |
ca9c0567 PE |
152 | Lisp_Object Vsystem_messages_locale; |
153 | Lisp_Object Vprevious_system_messages_locale; | |
154 | Lisp_Object Vsystem_time_locale; | |
155 | Lisp_Object Vprevious_system_time_locale; | |
68c45bf0 | 156 | |
f927c5ae JB |
157 | /* If non-zero, emacs should not attempt to use an window-specific code, |
158 | but instead should use the virtual terminal under which it was started */ | |
159 | int inhibit_window_system; | |
160 | ||
5aa7f46a JB |
161 | /* If nonzero, set Emacs to run at this priority. This is also used |
162 | in child_setup and sys_suspend to make sure subshells run at normal | |
163 | priority; Those functions have their own extern declaration. */ | |
3005da00 RS |
164 | int emacs_priority; |
165 | ||
7074fde6 FP |
166 | /* If non-zero a filter or a sentinel is running. Tested to save the match |
167 | data on the first attempt to change it inside asynchronous code. */ | |
168 | int running_asynch_code; | |
169 | ||
647cec74 | 170 | #ifdef BSD_PGRPS |
9ae8f997 JB |
171 | /* See sysdep.c. */ |
172 | extern int inherited_pgroup; | |
173 | #endif | |
174 | ||
f927c5ae JB |
175 | #ifdef HAVE_X_WINDOWS |
176 | /* If non-zero, -d was specified, meaning we're using some window system. */ | |
177 | int display_arg; | |
178 | #endif | |
179 | ||
180 | /* An address near the bottom of the stack. | |
181 | Tells GC how to save a copy of the stack. */ | |
182 | char *stack_bottom; | |
183 | ||
8ba50e1a | 184 | #ifdef HAVE_WINDOW_SYSTEM |
f927c5ae | 185 | extern Lisp_Object Vwindow_system; |
8ba50e1a | 186 | #endif /* HAVE_WINDOW_SYSTEM */ |
f927c5ae | 187 | |
1090a161 RS |
188 | extern Lisp_Object Vauto_save_list_file_name; |
189 | ||
f927c5ae JB |
190 | #ifdef USG_SHARED_LIBRARIES |
191 | /* If nonzero, this is the place to put the end of the writable segment | |
192 | at startup. */ | |
193 | ||
194 | unsigned int bss_end = 0; | |
195 | #endif | |
196 | ||
197 | /* Nonzero means running Emacs without interactive terminal. */ | |
198 | ||
199 | int noninteractive; | |
200 | ||
201 | /* Value of Lisp variable `noninteractive'. | |
202 | Normally same as C variable `noninteractive' | |
203 | but nothing terrible happens if user sets this one. */ | |
204 | ||
205 | int noninteractive1; | |
e29f86e4 RS |
206 | |
207 | /* Save argv and argc. */ | |
208 | char **initial_argv; | |
209 | int initial_argc; | |
081bef73 RS |
210 | |
211 | static void sort_args (); | |
dfcf069d | 212 | void syms_of_emacs (); |
bd4590ba | 213 | |
73ebcd25 | 214 | #define USAGE1 "\ |
bd4590ba GM |
215 | Usage: %s [OPTION-OR-FILENAME]...\n\ |
216 | \n\ | |
217 | Run Emacs, the extensible, customizable, self-documenting real-time\n\ | |
218 | display editor. The recommended way to start Emacs for normal editing\n\ | |
219 | is with no options at all.\n\ | |
220 | \n\ | |
221 | Run M-x info RET m emacs RET m command arguments RET inside Emacs to\n\ | |
222 | read the main documentation for these command-line arguments.\n\ | |
223 | \n\ | |
224 | Initialization options:\n\ | |
225 | \n\ | |
226 | --batch do not do interactive display; implies -q\n\ | |
227 | --debug-init enable Emacs Lisp debugger during init file\n\ | |
228 | --help display this help message and exit\n\ | |
229 | --multibyte, --no-unibyte run Emacs in multibyte mode\n\ | |
230 | --no-init-file, -q load neither ~/.emacs nor default.el\n\ | |
231 | --no-shared-memory, -nl do not use shared memory\n\ | |
232 | --no-site-file do not load site-start.el\n\ | |
233 | --no-windows, -nw don't communicate with X, ignoring $DISPLAY\n\ | |
234 | --terminal, -t DEVICE use DEVICE for terminal I/O\n\ | |
235 | --unibyte, --no-multibyte run Emacs in unibyte mode\n\ | |
236 | --user, -u USER load ~USER/.emacs instead of your own\n\ | |
237 | --version display version information and exit\n\ | |
238 | \n\ | |
239 | Action options:\n\ | |
240 | \n\ | |
241 | FILE visit FILE using find-file\n\ | |
5333e22e GM |
242 | +LINE FILE visit FILE using find-file, then go to line LINE\n\ |
243 | +LINE:COLUMN FILE visit FILE using find-file, then go to line LINE,\n\ | |
244 | column COLUMN\n\ | |
bd4590ba GM |
245 | --directory, -L DIR add DIR to variable load-path\n\ |
246 | --eval EXPR evaluate Emacs Lisp expression EXPR\n\ | |
247 | --execute EXPR evaluate Emacs Lisp expression EXPR\n\ | |
248 | --find-file FILE visit FILE\n\ | |
249 | --funcall, -f FUNC call Emacs function FUNC with no arguments\n\ | |
250 | --insert FILE insert contents of FILE into current buffer\n\ | |
251 | --kill exit without asking for confirmation\n\ | |
252 | --load, -l FILE load FILE of Emacs Lisp code using the load function\n\ | |
253 | --visit FILE visit FILE\n\ | |
73ebcd25 AI |
254 | \n" |
255 | ||
256 | #define USAGE2 "\ | |
5b2ca26b | 257 | Display options:\n\ |
bd4590ba GM |
258 | \n\ |
259 | --background-color, -bg COLOR window background color\n\ | |
260 | --border-color, -bd COLOR main border color\n\ | |
261 | --border-width, -bw WIDTH width of main border\n\ | |
262 | --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\ | |
263 | --display, -d DISPLAY use X server DISPLAY\n\ | |
264 | --font, -fn FONT default font; must be fixed-widthp\n\ | |
265 | --foreground-color, -fg COLOR window foreground color\n\ | |
266 | --geometry, -g GEOMETRY window geometry\n\ | |
267 | --iconic start Emacs in iconified state\n\ | |
268 | --icon-type, -i use picture of gnu for Emacs icon\n\ | |
269 | --internal-border, -ib WIDTH width between text and main border\n\ | |
ecb5709c | 270 | --line-spacing, -lsp PIXELS additional space to put between lines\n\ |
bd4590ba GM |
271 | --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\ |
272 | --name NAME title of main Emacs window\n\ | |
273 | --reverse-video, -r, -rv switch foreground and background\n\ | |
274 | --title, -T, -wn, TITLE title for Emacs windows\n\ | |
275 | --vertical-scroll-bars, -vb enable vertical scroll bars\n\ | |
276 | --xrm XRESOURCES set additional X resources\n\ | |
277 | \n\ | |
278 | You can generally also specify long option names with a single -; for\n\ | |
279 | example, -batch as well as --batch. You can use any unambiguous\n\ | |
280 | abbreviation for a --option.\n\ | |
281 | \n\ | |
282 | Various environment variables and window system resources also affect\n\ | |
283 | Emacs' operation. See the main documentation.\n\ | |
284 | \n\ | |
285 | Report bugs to bug-gnu-emacs@gnu.org. First, please see the Bugs\n\ | |
286 | section of the Emacs manual or the file BUGS.\n" | |
287 | ||
f927c5ae JB |
288 | \f |
289 | /* Signal code for the fatal signal that was received */ | |
290 | int fatal_error_code; | |
291 | ||
292 | /* Nonzero if handling a fatal error already */ | |
293 | int fatal_error_in_progress; | |
294 | ||
4fab758d GM |
295 | /* If non-null, call this function from fata_error_signal before |
296 | committing suicide. */ | |
297 | ||
298 | void (*fatal_error_signal_hook) P_ ((void)); | |
299 | ||
300 | ||
7317d9e8 | 301 | #ifdef SIGUSR1 |
7317d9e8 RS |
302 | SIGTYPE |
303 | handle_USR1_signal (sig) | |
304 | int sig; | |
305 | { | |
5bda49c6 RS |
306 | struct input_event buf; |
307 | ||
75816372 | 308 | bzero (&buf, sizeof buf); |
5b50dae1 | 309 | buf.kind = USER_SIGNAL_EVENT; |
74c2d1c6 | 310 | buf.frame_or_window = selected_frame; |
5bda49c6 RS |
311 | |
312 | kbd_buffer_store_event (&buf); | |
7317d9e8 | 313 | } |
5bda49c6 | 314 | #endif /* SIGUSR1 */ |
fcf01ad3 | 315 | |
7317d9e8 | 316 | #ifdef SIGUSR2 |
7317d9e8 RS |
317 | SIGTYPE |
318 | handle_USR2_signal (sig) | |
319 | int sig; | |
320 | { | |
5bda49c6 RS |
321 | struct input_event buf; |
322 | ||
75816372 | 323 | bzero (&buf, sizeof buf); |
5b50dae1 | 324 | buf.kind = USER_SIGNAL_EVENT; |
e2fa15ff | 325 | buf.code = 1; |
74c2d1c6 | 326 | buf.frame_or_window = selected_frame; |
5bda49c6 RS |
327 | |
328 | kbd_buffer_store_event (&buf); | |
7317d9e8 | 329 | } |
5bda49c6 | 330 | #endif /* SIGUSR2 */ |
7317d9e8 | 331 | |
9ab8560d | 332 | /* Handle bus errors, invalid instruction, etc. */ |
2447c626 | 333 | SIGTYPE |
f927c5ae JB |
334 | fatal_error_signal (sig) |
335 | int sig; | |
336 | { | |
f927c5ae JB |
337 | fatal_error_code = sig; |
338 | signal (sig, SIG_DFL); | |
339 | ||
061b7f94 RS |
340 | TOTALLY_UNBLOCK_INPUT; |
341 | ||
f927c5ae | 342 | /* If fatal error occurs in code below, avoid infinite recursion. */ |
8090eb09 JB |
343 | if (! fatal_error_in_progress) |
344 | { | |
345 | fatal_error_in_progress = 1; | |
f927c5ae | 346 | |
f7ab4e3d | 347 | shut_down_emacs (sig, 0, Qnil); |
8090eb09 | 348 | } |
f927c5ae JB |
349 | |
350 | #ifdef VMS | |
f927c5ae JB |
351 | LIB$STOP (SS$_ABORT); |
352 | #else | |
8090eb09 JB |
353 | /* Signal the same code; this time it will really be fatal. |
354 | Remember that since we're in a signal handler, the signal we're | |
355 | going to send is probably blocked, so we have to unblock it if we | |
356 | want to really receive it. */ | |
29b89fe0 | 357 | #ifndef MSDOS |
a90538cb | 358 | sigunblock (sigmask (fatal_error_code)); |
29b89fe0 | 359 | #endif |
4fab758d GM |
360 | |
361 | if (fatal_error_signal_hook) | |
362 | fatal_error_signal_hook (); | |
363 | ||
f927c5ae JB |
364 | kill (getpid (), fatal_error_code); |
365 | #endif /* not VMS */ | |
366 | } | |
271c7b7c RS |
367 | |
368 | #ifdef SIGDANGER | |
369 | ||
16c323ee | 370 | /* Handler for SIGDANGER. */ |
271c7b7c RS |
371 | SIGTYPE |
372 | memory_warning_signal (sig) | |
373 | int sig; | |
374 | { | |
375 | signal (sig, memory_warning_signal); | |
376 | ||
377 | malloc_warning ("Operating system warns that virtual memory is running low.\n"); | |
55796183 RS |
378 | |
379 | /* It might be unsafe to call do_auto_save now. */ | |
380 | force_auto_save_soon (); | |
271c7b7c RS |
381 | } |
382 | #endif | |
fcf01ad3 RS |
383 | |
384 | /* We define abort, rather than using it from the library, | |
c9fe9cce KH |
385 | so that GDB can return from a breakpoint here. |
386 | MSDOS has its own definition on msdos.c */ | |
fcf01ad3 | 387 | |
37e2fdd2 | 388 | #if ! defined (DOS_NT) && ! defined (NO_ABORT) |
ca9c0567 PE |
389 | |
390 | #ifndef ABORT_RETURN_TYPE | |
391 | #define ABORT_RETURN_TYPE void | |
392 | #endif | |
393 | ||
394 | ABORT_RETURN_TYPE | |
fcf01ad3 RS |
395 | abort () |
396 | { | |
397 | kill (getpid (), SIGABRT); | |
37e2fdd2 RS |
398 | /* This shouldn't be executed, but it prevents a warning. */ |
399 | exit (1); | |
fcf01ad3 | 400 | } |
c9fe9cce | 401 | #endif |
fcf01ad3 | 402 | |
f927c5ae JB |
403 | \f |
404 | /* Code for dealing with Lisp access to the Unix command line */ | |
405 | ||
dfcf069d | 406 | static void |
f927c5ae JB |
407 | init_cmdargs (argc, argv, skip_args) |
408 | int argc; | |
409 | char **argv; | |
410 | int skip_args; | |
411 | { | |
412 | register int i; | |
213d0b1f RS |
413 | Lisp_Object name, dir, tem; |
414 | int count = specpdl_ptr - specpdl; | |
415 | Lisp_Object raw_name; | |
f927c5ae | 416 | |
e29f86e4 RS |
417 | initial_argv = argv; |
418 | initial_argc = argc; | |
419 | ||
213d0b1f RS |
420 | raw_name = build_string (argv[0]); |
421 | ||
422 | /* Add /: to the front of the name | |
423 | if it would otherwise be treated as magic. */ | |
424 | tem = Ffind_file_name_handler (raw_name, Qt); | |
425 | if (! NILP (tem)) | |
426 | raw_name = concat2 (build_string ("/:"), raw_name); | |
427 | ||
428 | Vinvocation_name = Ffile_name_nondirectory (raw_name); | |
429 | Vinvocation_directory = Ffile_name_directory (raw_name); | |
430 | ||
ace40a69 RS |
431 | /* If we got no directory in argv[0], search PATH to find where |
432 | Emacs actually came from. */ | |
433 | if (NILP (Vinvocation_directory)) | |
434 | { | |
435 | Lisp_Object found; | |
436 | int yes = openp (Vexec_path, Vinvocation_name, | |
6c362a8b | 437 | EXEC_SUFFIXES, &found, 1); |
e443f843 | 438 | if (yes == 1) |
213d0b1f RS |
439 | { |
440 | /* Add /: to the front of the name | |
441 | if it would otherwise be treated as magic. */ | |
442 | tem = Ffind_file_name_handler (found, Qt); | |
443 | if (! NILP (tem)) | |
444 | found = concat2 (build_string ("/:"), found); | |
445 | Vinvocation_directory = Ffile_name_directory (found); | |
446 | } | |
ace40a69 | 447 | } |
59653951 | 448 | |
4133b300 RS |
449 | if (!NILP (Vinvocation_directory) |
450 | && NILP (Ffile_name_absolute_p (Vinvocation_directory))) | |
213d0b1f RS |
451 | /* Emacs was started with relative path, like ./emacs. |
452 | Make it absolute. */ | |
4133b300 RS |
453 | Vinvocation_directory = Fexpand_file_name (Vinvocation_directory, Qnil); |
454 | ||
07f4d123 RS |
455 | Vinstallation_directory = Qnil; |
456 | ||
457 | if (!NILP (Vinvocation_directory)) | |
458 | { | |
459 | dir = Vinvocation_directory; | |
460 | name = Fexpand_file_name (Vinvocation_name, dir); | |
461 | while (1) | |
462 | { | |
f5ab9736 | 463 | Lisp_Object tem, lib_src_exists; |
07f4d123 RS |
464 | Lisp_Object etc_exists, info_exists; |
465 | ||
f5ab9736 RS |
466 | /* See if dir contains subdirs for use by Emacs. |
467 | Check for the ones that would exist in a build directory, | |
468 | not including lisp and info. */ | |
469 | tem = Fexpand_file_name (build_string ("lib-src"), dir); | |
470 | lib_src_exists = Ffile_exists_p (tem); | |
de004cc6 | 471 | |
70344b34 | 472 | #ifdef MSDOS |
de004cc6 RS |
473 | /* MSDOS installations frequently remove lib-src, but we still |
474 | must set installation-directory, or else info won't find | |
475 | its files (it uses the value of installation-directory). */ | |
476 | tem = Fexpand_file_name (build_string ("info"), dir); | |
477 | info_exists = Ffile_exists_p (tem); | |
70344b34 EZ |
478 | #else |
479 | info_exists = Qnil; | |
480 | #endif | |
de004cc6 RS |
481 | |
482 | if (!NILP (lib_src_exists) || !NILP (info_exists)) | |
07f4d123 | 483 | { |
f5ab9736 RS |
484 | tem = Fexpand_file_name (build_string ("etc"), dir); |
485 | etc_exists = Ffile_exists_p (tem); | |
486 | if (!NILP (etc_exists)) | |
07f4d123 | 487 | { |
f5ab9736 RS |
488 | Vinstallation_directory |
489 | = Ffile_name_as_directory (dir); | |
490 | break; | |
07f4d123 RS |
491 | } |
492 | } | |
493 | ||
494 | /* See if dir's parent contains those subdirs. */ | |
f5ab9736 RS |
495 | tem = Fexpand_file_name (build_string ("../lib-src"), dir); |
496 | lib_src_exists = Ffile_exists_p (tem); | |
de004cc6 | 497 | |
70344b34 EZ |
498 | |
499 | #ifdef MSDOS | |
500 | /* See the MSDOS commentary above. */ | |
de004cc6 RS |
501 | tem = Fexpand_file_name (build_string ("../info"), dir); |
502 | info_exists = Ffile_exists_p (tem); | |
70344b34 EZ |
503 | #else |
504 | info_exists = Qnil; | |
505 | #endif | |
de004cc6 RS |
506 | |
507 | if (!NILP (lib_src_exists) || !NILP (info_exists)) | |
07f4d123 | 508 | { |
f5ab9736 RS |
509 | tem = Fexpand_file_name (build_string ("../etc"), dir); |
510 | etc_exists = Ffile_exists_p (tem); | |
511 | if (!NILP (etc_exists)) | |
07f4d123 | 512 | { |
f5ab9736 RS |
513 | tem = Fexpand_file_name (build_string (".."), dir); |
514 | Vinstallation_directory | |
515 | = Ffile_name_as_directory (tem); | |
516 | break; | |
07f4d123 RS |
517 | } |
518 | } | |
519 | ||
520 | /* If the Emacs executable is actually a link, | |
521 | next try the dir that the link points into. */ | |
522 | tem = Ffile_symlink_p (name); | |
523 | if (!NILP (tem)) | |
524 | { | |
260ec24d | 525 | name = Fexpand_file_name (tem, dir); |
07f4d123 RS |
526 | dir = Ffile_name_directory (name); |
527 | } | |
528 | else | |
529 | break; | |
530 | } | |
531 | } | |
532 | ||
f927c5ae JB |
533 | Vcommand_line_args = Qnil; |
534 | ||
535 | for (i = argc - 1; i >= 0; i--) | |
536 | { | |
537 | if (i == 0 || i > skip_args) | |
538 | Vcommand_line_args | |
539 | = Fcons (build_string (argv[i]), Vcommand_line_args); | |
540 | } | |
213d0b1f RS |
541 | |
542 | unbind_to (count, Qnil); | |
f927c5ae | 543 | } |
59653951 JB |
544 | |
545 | DEFUN ("invocation-name", Finvocation_name, Sinvocation_name, 0, 0, 0, | |
546 | "Return the program name that was used to run Emacs.\n\ | |
547 | Any directory names are omitted.") | |
548 | () | |
549 | { | |
550 | return Fcopy_sequence (Vinvocation_name); | |
551 | } | |
552 | ||
ace40a69 RS |
553 | DEFUN ("invocation-directory", Finvocation_directory, Sinvocation_directory, |
554 | 0, 0, 0, | |
555 | "Return the directory name in which the Emacs executable was located") | |
556 | () | |
557 | { | |
558 | return Fcopy_sequence (Vinvocation_directory); | |
559 | } | |
560 | ||
f927c5ae JB |
561 | \f |
562 | #ifdef VMS | |
563 | #ifdef LINK_CRTL_SHARE | |
34035df3 | 564 | #ifdef SHARABLE_LIB_BUG |
f927c5ae | 565 | extern noshare char **environ; |
34035df3 | 566 | #endif /* SHARABLE_LIB_BUG */ |
f927c5ae JB |
567 | #endif /* LINK_CRTL_SHARE */ |
568 | #endif /* VMS */ | |
569 | ||
0269dedb RS |
570 | #ifdef HAVE_TZSET |
571 | /* A valid but unlikely value for the TZ environment value. | |
572 | It is OK (though a bit slower) if the user actually chooses this value. */ | |
573 | static char dump_tz[] = "UtC0"; | |
574 | #endif | |
575 | ||
a90538cb | 576 | #ifndef ORDINARY_LINK |
efd241cc RS |
577 | /* We don't include crtbegin.o and crtend.o in the link, |
578 | so these functions and variables might be missed. | |
579 | Provide dummy definitions to avoid error. | |
580 | (We don't have any real constructors or destructors.) */ | |
581 | #ifdef __GNUC__ | |
46e65b73 | 582 | #ifndef GCC_CTORS_IN_LIBC |
dfcf069d | 583 | void __do_global_ctors () |
efd241cc | 584 | {} |
dfcf069d | 585 | void __do_global_ctors_aux () |
c83a7064 | 586 | {} |
dfcf069d | 587 | void __do_global_dtors () |
33143604 | 588 | {} |
64c1864a RS |
589 | /* Linux has a bug in its library; avoid an error. */ |
590 | #ifndef LINUX | |
c83a7064 | 591 | char * __CTOR_LIST__[2] = { (char *) (-1), 0 }; |
64c1864a | 592 | #endif |
c83a7064 | 593 | char * __DTOR_LIST__[2] = { (char *) (-1), 0 }; |
46e65b73 | 594 | #endif /* GCC_CTORS_IN_LIBC */ |
dfcf069d | 595 | void __main () |
efd241cc | 596 | {} |
efd241cc | 597 | #endif /* __GNUC__ */ |
a90538cb | 598 | #endif /* ORDINARY_LINK */ |
efd241cc | 599 | |
e2925360 KH |
600 | /* Test whether the next argument in ARGV matches SSTR or a prefix of |
601 | LSTR (at least MINLEN characters). If so, then if VALPTR is non-null | |
602 | (the argument is supposed to have a value) store in *VALPTR either | |
603 | the next argument or the portion of this one after the equal sign. | |
604 | ARGV is read starting at position *SKIPPTR; this index is advanced | |
605 | by the number of arguments used. | |
606 | ||
607 | Too bad we can't just use getopt for all of this, but we don't have | |
608 | enough information to do it right. */ | |
081bef73 | 609 | |
e2925360 | 610 | static int |
df6530f8 | 611 | argmatch (argv, argc, sstr, lstr, minlen, valptr, skipptr) |
e2925360 | 612 | char **argv; |
df6530f8 | 613 | int argc; |
e2925360 KH |
614 | char *sstr; |
615 | char *lstr; | |
616 | int minlen; | |
617 | char **valptr; | |
618 | int *skipptr; | |
619 | { | |
6bbd7a29 | 620 | char *p = NULL; |
e2925360 | 621 | int arglen; |
df6530f8 RS |
622 | char *arg; |
623 | ||
624 | /* Don't access argv[argc]; give up in advance. */ | |
625 | if (argc <= *skipptr + 1) | |
626 | return 0; | |
627 | ||
628 | arg = argv[*skipptr+1]; | |
e2925360 KH |
629 | if (arg == NULL) |
630 | return 0; | |
631 | if (strcmp (arg, sstr) == 0) | |
632 | { | |
633 | if (valptr != NULL) | |
634 | { | |
635 | *valptr = argv[*skipptr+2]; | |
636 | *skipptr += 2; | |
637 | } | |
638 | else | |
639 | *skipptr += 1; | |
640 | return 1; | |
641 | } | |
642 | arglen = (valptr != NULL && (p = index (arg, '=')) != NULL | |
643 | ? p - arg : strlen (arg)); | |
c03e1113 | 644 | if (lstr == 0 || arglen < minlen || strncmp (arg, lstr, arglen) != 0) |
e2925360 KH |
645 | return 0; |
646 | else if (valptr == NULL) | |
647 | { | |
648 | *skipptr += 1; | |
649 | return 1; | |
650 | } | |
651 | else if (p != NULL) | |
652 | { | |
653 | *valptr = p+1; | |
654 | *skipptr += 1; | |
655 | return 1; | |
656 | } | |
657 | else if (argv[*skipptr+2] != NULL) | |
658 | { | |
659 | *valptr = argv[*skipptr+2]; | |
660 | *skipptr += 2; | |
661 | return 1; | |
662 | } | |
663 | else | |
664 | { | |
665 | return 0; | |
666 | } | |
667 | } | |
668 | ||
b6779252 | 669 | #ifdef DOUG_LEA_MALLOC |
f927c5ae | 670 | |
b6779252 KH |
671 | /* malloc can be invoked even before main (e.g. by the dynamic |
672 | linker), so the dumped malloc state must be restored as early as | |
673 | possible using this special hook. */ | |
674 | ||
675 | static void | |
676 | malloc_initialize_hook () | |
677 | { | |
1f9c3929 | 678 | #ifndef USE_CRT_DLL |
b6779252 | 679 | extern char **environ; |
1f9c3929 | 680 | #endif |
6000fe37 | 681 | |
15aaf1b5 RS |
682 | if (initialized) |
683 | { | |
7c9cd446 AS |
684 | if (!malloc_using_checking) |
685 | /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be | |
686 | ignored if the heap to be restored was constructed without | |
d942e12a AS |
687 | malloc checking. Can't use unsetenv, since that calls malloc. */ |
688 | { | |
689 | char **p; | |
690 | ||
a57c4026 | 691 | for (p = environ; p && *p; p++) |
d942e12a AS |
692 | if (strncmp (*p, "MALLOC_CHECK_=", 14) == 0) |
693 | { | |
694 | do | |
695 | *p = p[1]; | |
696 | while (*++p); | |
697 | break; | |
698 | } | |
699 | } | |
b6779252 | 700 | |
15aaf1b5 RS |
701 | malloc_set_state (malloc_state_ptr); |
702 | free (malloc_state_ptr); | |
703 | } | |
7c9cd446 AS |
704 | else |
705 | malloc_using_checking = getenv ("MALLOC_CHECK_") != NULL; | |
b6779252 KH |
706 | } |
707 | ||
708 | void (*__malloc_initialize_hook) () = malloc_initialize_hook; | |
709 | ||
710 | #endif /* DOUG_LEA_MALLOC */ | |
711 | ||
712 | /* ARGSUSED */ | |
713 | int | |
714 | main (argc, argv, envp) | |
715 | int argc; | |
716 | char **argv; | |
717 | char **envp; | |
718 | { | |
2313132f | 719 | #if GC_MARK_STACK |
39ec21ea GM |
720 | Lisp_Object dummy; |
721 | #endif | |
b6779252 | 722 | char stack_bottom_variable; |
68c45bf0 | 723 | int do_initial_setlocale; |
b6779252 | 724 | int skip_args = 0; |
1f9c3929 | 725 | #ifndef USE_CRT_DLL |
b6779252 | 726 | extern int errno; |
1f9c3929 | 727 | #endif |
b6779252 KH |
728 | #ifdef HAVE_SETRLIMIT |
729 | struct rlimit rlim; | |
730 | #endif | |
731 | int no_loadup = 0; | |
732 | ||
2313132f | 733 | #if GC_MARK_STACK |
39ec21ea GM |
734 | extern Lisp_Object *stack_base; |
735 | stack_base = &dummy; | |
736 | #endif | |
737 | ||
b6779252 KH |
738 | #ifdef LINUX_SBRK_BUG |
739 | __sbrk (1); | |
15aaf1b5 RS |
740 | #endif |
741 | ||
d785cf9e RS |
742 | #ifdef RUN_TIME_REMAP |
743 | if (initialized) | |
744 | run_time_remap (argv[0]); | |
745 | #endif | |
746 | ||
081bef73 | 747 | sort_args (argc, argv); |
956e3c7e RS |
748 | argc = 0; |
749 | while (argv[argc]) argc++; | |
081bef73 | 750 | |
3270ae6e KH |
751 | if (argmatch (argv, argc, "-version", "--version", 3, NULL, &skip_args) |
752 | /* We don't know the version number unless this is a dumped Emacs. | |
753 | So ignore --version otherwise. */ | |
754 | && initialized) | |
1702afef RS |
755 | { |
756 | Lisp_Object tem; | |
757 | tem = Fsymbol_value (intern ("emacs-version")); | |
758 | if (!STRINGP (tem)) | |
759 | { | |
760 | fprintf (stderr, "Invalid value of `emacs-version'\n"); | |
761 | exit (1); | |
762 | } | |
763 | else | |
764 | { | |
30ce1583 | 765 | printf ("GNU Emacs %s\n", XSTRING (tem)->data); |
6c145d35 | 766 | printf ("Copyright (C) 2001 Free Software Foundation, Inc.\n"); |
b455c665 RS |
767 | printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n"); |
768 | printf ("You may redistribute copies of Emacs\n"); | |
769 | printf ("under the terms of the GNU General Public License.\n"); | |
770 | printf ("For more information about these matters, "); | |
94487c4e | 771 | printf ("see the file named COPYING.\n"); |
1702afef RS |
772 | exit (0); |
773 | } | |
774 | } | |
775 | ||
f927c5ae JB |
776 | /* Map in shared memory, if we are using that. */ |
777 | #ifdef HAVE_SHM | |
df6530f8 | 778 | if (argmatch (argv, argc, "-nl", "--no-shared-memory", 6, NULL, &skip_args)) |
f927c5ae JB |
779 | { |
780 | map_in_data (0); | |
781 | /* The shared memory was just restored, which clobbered this. */ | |
782 | skip_args = 1; | |
783 | } | |
784 | else | |
785 | { | |
786 | map_in_data (1); | |
787 | /* The shared memory was just restored, which clobbered this. */ | |
788 | skip_args = 0; | |
789 | } | |
790 | #endif | |
791 | ||
19a36ec6 | 792 | #ifdef NeXT |
b9df9faa KH |
793 | { |
794 | extern int malloc_cookie; | |
795 | /* This helps out unexnext.c. */ | |
796 | if (initialized) | |
797 | if (malloc_jumpstart (malloc_cookie) != 0) | |
798 | printf ("malloc jumpstart failed!\n"); | |
799 | } | |
19a36ec6 RS |
800 | #endif /* NeXT */ |
801 | ||
f927c5ae JB |
802 | #ifdef VMS |
803 | /* If -map specified, map the data file in */ | |
e2925360 KH |
804 | { |
805 | char *file; | |
df6530f8 | 806 | if (argmatch (argv, argc, "-map", "--map-data", 3, &mapin_file, &skip_args)) |
e2925360 KH |
807 | mapin_data (file); |
808 | } | |
f927c5ae JB |
809 | |
810 | #ifdef LINK_CRTL_SHARE | |
34035df3 | 811 | #ifdef SHARABLE_LIB_BUG |
f927c5ae JB |
812 | /* Bletcherous shared libraries! */ |
813 | if (!stdin) | |
814 | stdin = fdopen (0, "r"); | |
815 | if (!stdout) | |
816 | stdout = fdopen (1, "w"); | |
817 | if (!stderr) | |
818 | stderr = fdopen (2, "w"); | |
819 | if (!environ) | |
820 | environ = envp; | |
34035df3 | 821 | #endif /* SHARABLE_LIB_BUG */ |
f927c5ae JB |
822 | #endif /* LINK_CRTL_SHARE */ |
823 | #endif /* VMS */ | |
824 | ||
ea2acec5 | 825 | #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK) |
6c2935e9 RS |
826 | /* Extend the stack space available. |
827 | Don't do that if dumping, since some systems (e.g. DJGPP) | |
828 | might define a smaller stack limit at that time. */ | |
829 | if (1 | |
830 | #ifndef CANNOT_DUMP | |
831 | && (!noninteractive || initialized) | |
832 | #endif | |
833 | && !getrlimit (RLIMIT_STACK, &rlim)) | |
53c58b5d | 834 | { |
509a8fcd | 835 | long newlim; |
6c2935e9 | 836 | extern int re_max_failures; |
03effc23 KH |
837 | /* Approximate the amount regex.c needs per unit of re_max_failures. */ |
838 | int ratio = 20 * sizeof (char *); | |
839 | /* Then add 33% to cover the size of the smaller stacks that regex.c | |
840 | successively allocates and discards, on its way to the maximum. */ | |
841 | ratio += ratio / 3; | |
842 | /* Add in some extra to cover | |
843 | what we're likely to use for other reasons. */ | |
844 | newlim = re_max_failures * ratio + 200000; | |
d0381a7f RS |
845 | #ifdef __NetBSD__ |
846 | /* NetBSD (at least NetBSD 1.2G and former) has a bug in its | |
847 | stack allocation routine for new process that the allocation | |
848 | fails if stack limit is not on page boundary. So, round up the | |
849 | new limit to page boundary. */ | |
850 | newlim = (newlim + getpagesize () - 1) / getpagesize () * getpagesize(); | |
851 | #endif | |
509a8fcd | 852 | if (newlim > rlim.rlim_max) |
6c2935e9 RS |
853 | { |
854 | newlim = rlim.rlim_max; | |
03effc23 KH |
855 | /* Don't let regex.c overflow the stack we have. */ |
856 | re_max_failures = (newlim - 200000) / ratio; | |
6c2935e9 | 857 | } |
509a8fcd RS |
858 | if (rlim.rlim_cur < newlim) |
859 | rlim.rlim_cur = newlim; | |
860 | ||
53c58b5d RS |
861 | setrlimit (RLIMIT_STACK, &rlim); |
862 | } | |
ea2acec5 | 863 | #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */ |
53c58b5d | 864 | |
f927c5ae JB |
865 | /* Record (approximately) where the stack begins. */ |
866 | stack_bottom = &stack_bottom_variable; | |
867 | ||
f927c5ae JB |
868 | #ifdef USG_SHARED_LIBRARIES |
869 | if (bss_end) | |
1d233b80 | 870 | brk ((void *)bss_end); |
f927c5ae JB |
871 | #endif |
872 | ||
873 | clearerr (stdin); | |
9ae8f997 | 874 | |
f927c5ae | 875 | #ifndef SYSTEM_MALLOC |
bf7f4e90 RS |
876 | /* Arrange to get warning messages as memory fills up. */ |
877 | memory_warnings (0, malloc_warning); | |
9ac0d9e0 | 878 | |
f5a3c8c4 AI |
879 | /* Call malloc at least once, to run the initial __malloc_hook. |
880 | Also call realloc and free for consistency. */ | |
881 | free (realloc (malloc (4), 4)); | |
bf7f4e90 RS |
882 | |
883 | /* Arrange to disable interrupt input inside malloc etc. */ | |
884 | uninterrupt_malloc (); | |
f927c5ae JB |
885 | #endif /* not SYSTEM_MALLOC */ |
886 | ||
29b89fe0 RS |
887 | #ifdef MSDOS |
888 | /* We do all file input/output as binary files. When we need to translate | |
889 | newlines, we do that manually. */ | |
890 | _fmode = O_BINARY; | |
18198bb2 RS |
891 | |
892 | #if __DJGPP__ >= 2 | |
893 | if (!isatty (fileno (stdin))) | |
894 | setmode (fileno (stdin), O_BINARY); | |
895 | if (!isatty (fileno (stdout))) | |
896 | { | |
897 | fflush (stdout); | |
898 | setmode (fileno (stdout), O_BINARY); | |
899 | } | |
900 | #else /* not __DJGPP__ >= 2 */ | |
29b89fe0 RS |
901 | (stdin)->_flag &= ~_IOTEXT; |
902 | (stdout)->_flag &= ~_IOTEXT; | |
903 | (stderr)->_flag &= ~_IOTEXT; | |
18198bb2 | 904 | #endif /* not __DJGPP__ >= 2 */ |
29b89fe0 RS |
905 | #endif /* MSDOS */ |
906 | ||
a422068f | 907 | #ifdef SET_EMACS_PRIORITY |
3005da00 | 908 | if (emacs_priority) |
5aa7f46a | 909 | nice (emacs_priority); |
f927c5ae | 910 | setuid (getuid ()); |
a422068f | 911 | #endif /* SET_EMACS_PRIORITY */ |
f927c5ae | 912 | |
68c45bf0 PE |
913 | /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case. |
914 | The build procedure uses this while dumping, to ensure that the | |
915 | dumped Emacs does not have its system locale tables initialized, | |
916 | as that might cause screwups when the dumped Emacs starts up. */ | |
917 | { | |
918 | char *lc_all = getenv ("LC_ALL"); | |
919 | do_initial_setlocale = ! lc_all || strcmp (lc_all, "C"); | |
920 | } | |
921 | ||
922 | /* Set locale now, so that initial error messages are localized properly. | |
923 | fixup_locale must wait until later, since it builds strings. */ | |
924 | if (do_initial_setlocale) | |
925 | setlocale (LC_ALL, ""); | |
926 | ||
d8b3a65d | 927 | #ifdef EXTRA_INITIALIZE |
a9260219 | 928 | EXTRA_INITIALIZE; |
d8b3a65d RS |
929 | #endif |
930 | ||
f927c5ae JB |
931 | inhibit_window_system = 0; |
932 | ||
4fc0b45b | 933 | /* Handle the -t switch, which specifies filename to use as terminal */ |
956e3c7e RS |
934 | while (1) |
935 | { | |
936 | char *term; | |
937 | if (argmatch (argv, argc, "-t", "--terminal", 4, &term, &skip_args)) | |
938 | { | |
939 | int result; | |
68c45bf0 PE |
940 | emacs_close (0); |
941 | emacs_close (1); | |
942 | result = emacs_open (term, O_RDWR, 0); | |
956e3c7e RS |
943 | if (result < 0) |
944 | { | |
945 | char *errstring = strerror (errno); | |
946 | fprintf (stderr, "emacs: %s: %s\n", term, errstring); | |
947 | exit (1); | |
948 | } | |
949 | dup (0); | |
950 | if (! isatty (0)) | |
951 | { | |
952 | fprintf (stderr, "emacs: %s: not a tty\n", term); | |
953 | exit (1); | |
954 | } | |
955 | fprintf (stderr, "Using %s\n", term); | |
8ba50e1a | 956 | #ifdef HAVE_WINDOW_SYSTEM |
956e3c7e | 957 | inhibit_window_system = 1; /* -t => -nw */ |
f927c5ae | 958 | #endif |
956e3c7e RS |
959 | } |
960 | else | |
961 | break; | |
962 | } | |
963 | ||
df6530f8 | 964 | if (argmatch (argv, argc, "-nw", "--no-windows", 6, NULL, &skip_args)) |
e2925360 | 965 | inhibit_window_system = 1; |
f927c5ae | 966 | |
e2925360 | 967 | /* Handle the -batch switch, which means don't do interactive display. */ |
f927c5ae | 968 | noninteractive = 0; |
df6530f8 | 969 | if (argmatch (argv, argc, "-batch", "--batch", 5, NULL, &skip_args)) |
e2925360 KH |
970 | noninteractive = 1; |
971 | ||
972 | /* Handle the --help option, which gives a usage message.. */ | |
df6530f8 | 973 | if (argmatch (argv, argc, "-help", "--help", 3, NULL, &skip_args)) |
f927c5ae | 974 | { |
73ebcd25 AI |
975 | printf (USAGE1, argv[0]); |
976 | printf (USAGE2); | |
e2925360 | 977 | exit (0); |
f927c5ae JB |
978 | } |
979 | ||
edb85f59 RS |
980 | if (! noninteractive) |
981 | { | |
982 | #ifdef BSD_PGRPS | |
983 | if (initialized) | |
984 | { | |
985 | inherited_pgroup = EMACS_GETPGRP (0); | |
986 | setpgrp (0, getpid ()); | |
987 | } | |
988 | #else | |
989 | #if defined (USG5) && defined (INTERRUPT_INPUT) | |
990 | setpgrp (); | |
991 | #endif | |
992 | #endif | |
993 | } | |
994 | ||
fb8e9847 | 995 | init_signals (); |
fb8e9847 | 996 | |
1efa2983 KH |
997 | /* Don't catch SIGHUP if dumping. */ |
998 | if (1 | |
999 | #ifndef CANNOT_DUMP | |
1000 | && initialized | |
1001 | #endif | |
1002 | ) | |
1003 | { | |
57e3d22a | 1004 | sigblock (sigmask (SIGHUP)); |
1efa2983 KH |
1005 | /* In --batch mode, don't catch SIGHUP if already ignored. |
1006 | That makes nohup work. */ | |
1007 | if (! noninteractive | |
1008 | || signal (SIGHUP, SIG_IGN) != SIG_IGN) | |
1009 | signal (SIGHUP, fatal_error_signal); | |
57e3d22a | 1010 | sigunblock (sigmask (SIGHUP)); |
1efa2983 KH |
1011 | } |
1012 | ||
f927c5ae JB |
1013 | if ( |
1014 | #ifndef CANNOT_DUMP | |
1015 | ! noninteractive || initialized | |
1016 | #else | |
1017 | 1 | |
1018 | #endif | |
1019 | ) | |
1020 | { | |
1efa2983 | 1021 | /* Don't catch these signals in batch mode if dumping. |
f927c5ae JB |
1022 | On some machines, this sets static data that would make |
1023 | signal fail to work right when the dumped Emacs is run. */ | |
f927c5ae JB |
1024 | signal (SIGQUIT, fatal_error_signal); |
1025 | signal (SIGILL, fatal_error_signal); | |
1026 | signal (SIGTRAP, fatal_error_signal); | |
7317d9e8 RS |
1027 | #ifdef SIGUSR1 |
1028 | signal (SIGUSR1, handle_USR1_signal); | |
1029 | #ifdef SIGUSR2 | |
1030 | signal (SIGUSR2, handle_USR2_signal); | |
1031 | #endif | |
1032 | #endif | |
99e372cd RS |
1033 | #ifdef SIGABRT |
1034 | signal (SIGABRT, fatal_error_signal); | |
1035 | #endif | |
1036 | #ifdef SIGHWE | |
1037 | signal (SIGHWE, fatal_error_signal); | |
1038 | #endif | |
1039 | #ifdef SIGPRE | |
1040 | signal (SIGPRE, fatal_error_signal); | |
1041 | #endif | |
1042 | #ifdef SIGORE | |
1043 | signal (SIGORE, fatal_error_signal); | |
1044 | #endif | |
1045 | #ifdef SIGUME | |
1046 | signal (SIGUME, fatal_error_signal); | |
1047 | #endif | |
1048 | #ifdef SIGDLK | |
1049 | signal (SIGDLK, fatal_error_signal); | |
1050 | #endif | |
1051 | #ifdef SIGCPULIM | |
1052 | signal (SIGCPULIM, fatal_error_signal); | |
1053 | #endif | |
a90538cb JB |
1054 | #ifdef SIGIOT |
1055 | /* This is missing on some systems - OS/2, for example. */ | |
f927c5ae | 1056 | signal (SIGIOT, fatal_error_signal); |
a90538cb | 1057 | #endif |
f927c5ae JB |
1058 | #ifdef SIGEMT |
1059 | signal (SIGEMT, fatal_error_signal); | |
1060 | #endif | |
1061 | signal (SIGFPE, fatal_error_signal); | |
00eaaa32 | 1062 | #ifdef SIGBUS |
f927c5ae | 1063 | signal (SIGBUS, fatal_error_signal); |
00eaaa32 | 1064 | #endif |
f927c5ae | 1065 | signal (SIGSEGV, fatal_error_signal); |
00eaaa32 | 1066 | #ifdef SIGSYS |
f927c5ae | 1067 | signal (SIGSYS, fatal_error_signal); |
00eaaa32 | 1068 | #endif |
f927c5ae JB |
1069 | signal (SIGTERM, fatal_error_signal); |
1070 | #ifdef SIGXCPU | |
1071 | signal (SIGXCPU, fatal_error_signal); | |
1072 | #endif | |
1073 | #ifdef SIGXFSZ | |
1074 | signal (SIGXFSZ, fatal_error_signal); | |
1075 | #endif /* SIGXFSZ */ | |
1076 | ||
271c7b7c RS |
1077 | #ifdef SIGDANGER |
1078 | /* This just means available memory is getting low. */ | |
1079 | signal (SIGDANGER, memory_warning_signal); | |
1080 | #endif | |
1081 | ||
f927c5ae | 1082 | #ifdef AIX |
56e034fa RS |
1083 | /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */ |
1084 | signal (SIGXCPU, fatal_error_signal); | |
0aef8561 | 1085 | #ifndef _I386 |
f927c5ae | 1086 | signal (SIGIOINT, fatal_error_signal); |
0aef8561 | 1087 | #endif |
f927c5ae JB |
1088 | signal (SIGGRANT, fatal_error_signal); |
1089 | signal (SIGRETRACT, fatal_error_signal); | |
1090 | signal (SIGSOUND, fatal_error_signal); | |
1091 | signal (SIGMSG, fatal_error_signal); | |
1092 | #endif /* AIX */ | |
1093 | } | |
1094 | ||
1095 | noninteractive1 = noninteractive; | |
1096 | ||
1097 | /* Perform basic initializations (not merely interning symbols) */ | |
1098 | ||
1099 | if (!initialized) | |
1100 | { | |
1101 | init_alloc_once (); | |
1102 | init_obarray (); | |
1103 | init_eval_once (); | |
270ce821 KH |
1104 | init_charset_once (); |
1105 | init_coding_once (); | |
f927c5ae | 1106 | init_syntax_once (); /* Create standard syntax table. */ |
270ce821 | 1107 | init_category_once (); /* Create standard category table. */ |
f927c5ae JB |
1108 | /* Must be done before init_buffer */ |
1109 | init_casetab_once (); | |
1110 | init_buffer_once (); /* Create buffer table and some buffers */ | |
1111 | init_minibuf_once (); /* Create list of minibuffers */ | |
90d920b6 GM |
1112 | /* Must precede init_window_once */ |
1113 | ||
1114 | /* Call syms_of_xfaces before init_window_once because that | |
1115 | function creates Vterminal_frame. Termcap frames now use | |
1116 | faces, and the face implementation uses some symbols as | |
1117 | face names. */ | |
90d920b6 | 1118 | syms_of_xfaces (); |
7a18af49 KR |
1119 | /* Call syms_of_keyboard before init_window_once because |
1120 | keyboard sets up symbols that include some face names that | |
1121 | the X support will want to use. This can happen when | |
1122 | CANNOT_DUMP is defined. */ | |
1123 | syms_of_keyboard (); | |
90d920b6 | 1124 | |
1a578e9b | 1125 | #ifdef macintosh |
c1e279c2 AC |
1126 | /* init_window_once calls make_terminal_frame which on Mac OS |
1127 | creates a full-fledge output_mac type frame. This does not | |
1128 | work correctly before syms_of_textprop, syms_of_macfns, | |
1129 | syms_of_ccl, syms_of_fontset, syms_of_xterm, syms_of_search, | |
1130 | syms_of_frame, x_term_init, and init_keyboard have already | |
1131 | been called. */ | |
1a578e9b AC |
1132 | syms_of_textprop (); |
1133 | syms_of_macfns (); | |
1134 | syms_of_ccl (); | |
1135 | syms_of_fontset (); | |
1136 | syms_of_macterm (); | |
1137 | syms_of_macmenu (); | |
1138 | syms_of_data (); | |
1139 | syms_of_search (); | |
c1e279c2 | 1140 | syms_of_frame (); |
1a578e9b AC |
1141 | |
1142 | x_term_init (); | |
1143 | init_keyboard (); | |
1144 | #endif | |
1145 | ||
f927c5ae | 1146 | init_window_once (); /* Init the window system */ |
680256a8 | 1147 | init_fileio_once (); /* Must precede any path manipulation. */ |
f927c5ae JB |
1148 | } |
1149 | ||
1150 | init_alloc (); | |
68c45bf0 PE |
1151 | |
1152 | if (do_initial_setlocale) | |
1153 | { | |
1154 | fixup_locale (); | |
ca9c0567 PE |
1155 | Vsystem_messages_locale = Vprevious_system_messages_locale; |
1156 | Vsystem_time_locale = Vprevious_system_time_locale; | |
68c45bf0 PE |
1157 | } |
1158 | ||
f927c5ae JB |
1159 | init_eval (); |
1160 | init_data (); | |
ad067ea6 KH |
1161 | #ifdef CLASH_DETECTION |
1162 | init_filelock ();; | |
1163 | #endif | |
ab5d0358 | 1164 | init_atimer (); |
7074fde6 | 1165 | running_asynch_code = 0; |
0e956009 | 1166 | |
a08a816a RS |
1167 | /* Handle --unibyte and the EMACS_UNIBYTE envvar, |
1168 | but not while dumping. */ | |
1169 | if ( | |
1170 | #ifndef CANNOT_DUMP | |
1171 | ! noninteractive || initialized | |
1172 | #else | |
1173 | 1 | |
1174 | #endif | |
1175 | ) | |
1176 | { | |
1177 | int inhibit_unibyte = 0; | |
1178 | ||
1179 | /* --multibyte overrides EMACS_UNIBYTE. */ | |
1180 | if (argmatch (argv, argc, "-no-unibyte", "--no-unibyte", 4, NULL, &skip_args) | |
1181 | || argmatch (argv, argc, "-multibyte", "--multibyte", 4, NULL, &skip_args)) | |
1182 | inhibit_unibyte = 1; | |
1183 | ||
1184 | /* --unibyte requests that we set up to do everything with single-byte | |
1185 | buffers and strings. We need to handle this before calling | |
1186 | init_lread, init_editfns and other places that generate Lisp strings | |
1187 | from text in the environment. */ | |
c0218e1b DL |
1188 | /* Actually this shouldn't be needed as of 20.4 in a generally |
1189 | unibyte environment. As handa says, environment values | |
1190 | aren't now decoded; also existing buffers are now made | |
1191 | unibyte during startup if .emacs sets unibyte. Tested with | |
1192 | 8-bit data in environment variables and /etc/passwd, setting | |
1193 | unibyte and Latin-1 in .emacs. -- Dave Love */ | |
a08a816a RS |
1194 | if (argmatch (argv, argc, "-unibyte", "--unibyte", 4, NULL, &skip_args) |
1195 | || argmatch (argv, argc, "-no-multibyte", "--no-multibyte", 4, NULL, &skip_args) | |
1196 | || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte)) | |
1197 | { | |
1198 | Lisp_Object old_log_max; | |
1199 | Lisp_Object symbol, tail; | |
1200 | ||
1201 | symbol = intern ("default-enable-multibyte-characters"); | |
1202 | Fset (symbol, Qnil); | |
1203 | ||
6524291c KH |
1204 | if (initialized) |
1205 | { | |
1206 | /* Erase pre-dump messages in *Messages* now so no abort. */ | |
1207 | old_log_max = Vmessage_log_max; | |
1208 | XSETFASTINT (Vmessage_log_max, 0); | |
1209 | message_dolog ("", 0, 1, 0); | |
1210 | Vmessage_log_max = old_log_max; | |
1211 | } | |
a08a816a | 1212 | |
3e75bb9e | 1213 | for (tail = Vbuffer_alist; CONSP (tail); |
7539e11f | 1214 | tail = XCDR (tail)) |
a08a816a RS |
1215 | { |
1216 | Lisp_Object buffer; | |
1217 | ||
7539e11f | 1218 | buffer = Fcdr (XCAR (tail)); |
a08a816a RS |
1219 | /* Verify that all buffers are empty now, as they |
1220 | ought to be. */ | |
1221 | if (BUF_Z (XBUFFER (buffer)) > BUF_BEG (XBUFFER (buffer))) | |
1222 | abort (); | |
1223 | /* It is safe to do this crudely in an empty buffer. */ | |
1224 | XBUFFER (buffer)->enable_multibyte_characters = Qnil; | |
1225 | } | |
1226 | } | |
1227 | } | |
1228 | ||
956e3c7e | 1229 | no_loadup |
b96f9fb7 | 1230 | = argmatch (argv, argc, "-nl", "--no-loadup", 6, NULL, &skip_args); |
956e3c7e RS |
1231 | |
1232 | ||
1233 | #ifdef HAVE_X_WINDOWS | |
1234 | /* Stupid kludge to catch command-line display spec. We can't | |
1235 | handle this argument entirely in window system dependent code | |
1236 | because we don't even know which window system dependent code | |
1237 | to run until we've recognized this argument. */ | |
1238 | { | |
1239 | char *displayname = 0; | |
956e3c7e RS |
1240 | int count_before = skip_args; |
1241 | ||
1242 | /* Skip any number of -d options, but only use the last one. */ | |
1243 | while (1) | |
1244 | { | |
1245 | int count_before_this = skip_args; | |
1246 | ||
1247 | if (argmatch (argv, argc, "-d", "--display", 3, &displayname, &skip_args)) | |
1248 | display_arg = 1; | |
1249 | else if (argmatch (argv, argc, "-display", 0, 3, &displayname, &skip_args)) | |
1250 | display_arg = 1; | |
1251 | else | |
1252 | break; | |
1253 | ||
1254 | count_before = count_before_this; | |
1255 | } | |
1256 | ||
1257 | /* If we have the form --display=NAME, | |
1258 | convert it into -d name. | |
1259 | This requires inserting a new element into argv. */ | |
1260 | if (displayname != 0 && skip_args - count_before == 1) | |
1261 | { | |
1262 | char **new = (char **) xmalloc (sizeof (char *) * (argc + 2)); | |
1263 | int j; | |
1264 | ||
1265 | for (j = 0; j < count_before + 1; j++) | |
1266 | new[j] = argv[j]; | |
1267 | new[count_before + 1] = "-d"; | |
1268 | new[count_before + 2] = displayname; | |
1269 | for (j = count_before + 2; j <argc; j++) | |
1270 | new[j + 1] = argv[j]; | |
1271 | argv = new; | |
1272 | argc++; | |
1273 | } | |
1274 | /* Change --display to -d, when its arg is separate. */ | |
1275 | else if (displayname != 0 && skip_args > count_before | |
1276 | && argv[count_before + 1][1] == '-') | |
1277 | argv[count_before + 1] = "-d"; | |
1278 | ||
1279 | /* Don't actually discard this arg. */ | |
1280 | skip_args = count_before; | |
1281 | } | |
1282 | #endif | |
1283 | ||
1284 | /* argmatch must not be used after here, | |
1285 | except when bulding temacs | |
1286 | because the -d argument has not been skipped in skip_args. */ | |
1287 | ||
29b89fe0 RS |
1288 | #ifdef MSDOS |
1289 | /* Call early 'cause init_environment needs it. */ | |
1290 | init_dosfns (); | |
1291 | /* Set defaults for several environment variables. */ | |
18198bb2 RS |
1292 | if (initialized) |
1293 | init_environment (argc, argv, skip_args); | |
1294 | else | |
d1fc6752 | 1295 | tzset (); |
18198bb2 | 1296 | #endif /* MSDOS */ |
29b89fe0 | 1297 | |
8ba50e1a GV |
1298 | #ifdef WINDOWSNT |
1299 | /* Initialize environment from registry settings. */ | |
a3a58294 | 1300 | init_environment (argv); |
41f339d4 | 1301 | init_ntproc (); /* must precede init_editfns */ |
8ba50e1a GV |
1302 | #endif |
1303 | ||
0e956009 JB |
1304 | /* egetenv is a pretty low-level facility, which may get called in |
1305 | many circumstances; it seems flimsy to put off initializing it | |
1306 | until calling init_callproc. */ | |
1307 | set_process_environment (); | |
93aed04d RS |
1308 | /* AIX crashes are reported in system versions 3.2.3 and 3.2.4 |
1309 | if this is not done. Do it after set_process_environment so that we | |
1310 | don't pollute Vprocess_environment. */ | |
fa09a82d DL |
1311 | /* Setting LANG here will defeat the startup locale processing... */ |
1312 | #ifdef AIX3_2 | |
93aed04d RS |
1313 | putenv ("LANG=C"); |
1314 | #endif | |
0e956009 | 1315 | |
ace40a69 RS |
1316 | init_buffer (); /* Init default directory of main buffer */ |
1317 | ||
7928f0b5 | 1318 | init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */ |
ace40a69 | 1319 | init_cmdargs (argc, argv, skip_args); /* Must precede init_lread. */ |
380e25b8 RS |
1320 | |
1321 | if (initialized) | |
1322 | { | |
1323 | /* Erase any pre-dump messages in the message log, to avoid confusion */ | |
1324 | Lisp_Object old_log_max; | |
1325 | old_log_max = Vmessage_log_max; | |
1326 | XSETFASTINT (Vmessage_log_max, 0); | |
f6fe7bb5 | 1327 | message_dolog ("", 0, 1, 0); |
380e25b8 RS |
1328 | Vmessage_log_max = old_log_max; |
1329 | } | |
1330 | ||
7928f0b5 | 1331 | init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */ |
fb8e9847 | 1332 | init_lread (); |
f927c5ae | 1333 | |
8bb697c0 RS |
1334 | /* Intern the names of all standard functions and variables; |
1335 | define standard keys. */ | |
f927c5ae JB |
1336 | |
1337 | if (!initialized) | |
1338 | { | |
1339 | /* The basic levels of Lisp must come first */ | |
1340 | /* And data must come first of all | |
1341 | for the sake of symbols like error-message */ | |
1a578e9b AC |
1342 | #ifndef macintosh |
1343 | /* Called before init_window_once for Mac OS. */ | |
f927c5ae | 1344 | syms_of_data (); |
1a578e9b | 1345 | #endif |
f927c5ae | 1346 | syms_of_alloc (); |
fb8e9847 | 1347 | syms_of_lread (); |
f927c5ae JB |
1348 | syms_of_print (); |
1349 | syms_of_eval (); | |
1350 | syms_of_fns (); | |
f927c5ae | 1351 | syms_of_floatfns (); |
f927c5ae JB |
1352 | |
1353 | syms_of_abbrev (); | |
1354 | syms_of_buffer (); | |
1355 | syms_of_bytecode (); | |
1356 | syms_of_callint (); | |
1357 | syms_of_casefiddle (); | |
1358 | syms_of_casetab (); | |
1359 | syms_of_callproc (); | |
270ce821 | 1360 | syms_of_category (); |
1a578e9b AC |
1361 | #ifndef macintosh |
1362 | /* Called before init_window_once for Mac OS. */ | |
270ce821 | 1363 | syms_of_ccl (); |
1a578e9b | 1364 | #endif |
270ce821 | 1365 | syms_of_charset (); |
f927c5ae JB |
1366 | syms_of_cmds (); |
1367 | #ifndef NO_DIR_LIBRARY | |
1368 | syms_of_dired (); | |
1369 | #endif /* not NO_DIR_LIBRARY */ | |
1370 | syms_of_display (); | |
1371 | syms_of_doc (); | |
1372 | syms_of_editfns (); | |
1373 | syms_of_emacs (); | |
1374 | syms_of_fileio (); | |
270ce821 | 1375 | syms_of_coding (); /* This should be after syms_of_fileio. */ |
f927c5ae JB |
1376 | #ifdef CLASH_DETECTION |
1377 | syms_of_filelock (); | |
1378 | #endif /* CLASH_DETECTION */ | |
1379 | syms_of_indent (); | |
c2c5ed2c | 1380 | syms_of_insdel (); |
f927c5ae JB |
1381 | syms_of_keymap (); |
1382 | syms_of_macros (); | |
1383 | syms_of_marker (); | |
1384 | syms_of_minibuf (); | |
1385 | syms_of_mocklisp (); | |
f927c5ae | 1386 | syms_of_process (); |
1a578e9b AC |
1387 | #ifndef macintosh |
1388 | /* Called before init_window_once for Mac OS. */ | |
f927c5ae | 1389 | syms_of_search (); |
1cbd5d9d | 1390 | syms_of_frame (); |
c1e279c2 | 1391 | #endif |
f927c5ae | 1392 | syms_of_syntax (); |
0d934e7b | 1393 | syms_of_term (); |
f927c5ae | 1394 | syms_of_undo (); |
90d920b6 GM |
1395 | #ifdef HAVE_SOUND |
1396 | syms_of_sound (); | |
1397 | #endif | |
1a578e9b AC |
1398 | #ifndef macintosh |
1399 | /* Called before init_window_once for Mac OS. */ | |
bef79ee4 | 1400 | syms_of_textprop (); |
1a578e9b | 1401 | #endif |
9d100795 | 1402 | syms_of_composite (); |
f927c5ae JB |
1403 | #ifdef VMS |
1404 | syms_of_vmsproc (); | |
1405 | #endif /* VMS */ | |
05687c54 RS |
1406 | #ifdef WINDOWSNT |
1407 | syms_of_ntproc (); | |
1408 | #endif /* WINDOWSNT */ | |
f927c5ae JB |
1409 | syms_of_window (); |
1410 | syms_of_xdisp (); | |
1411 | #ifdef HAVE_X_WINDOWS | |
72412588 | 1412 | syms_of_xterm (); |
f927c5ae | 1413 | syms_of_xfns (); |
270ce821 | 1414 | syms_of_fontset (); |
72412588 JB |
1415 | #ifdef HAVE_X11 |
1416 | syms_of_xselect (); | |
1417 | #endif | |
f927c5ae JB |
1418 | #endif /* HAVE_X_WINDOWS */ |
1419 | ||
1e9c210b | 1420 | #ifndef HAVE_NTGUI |
1a578e9b | 1421 | #ifndef macintosh |
6c850f3c | 1422 | syms_of_xmenu (); |
1e9c210b | 1423 | #endif |
1a578e9b | 1424 | #endif |
6c850f3c | 1425 | |
8ba50e1a | 1426 | #ifdef HAVE_NTGUI |
fbd6baed GV |
1427 | syms_of_w32term (); |
1428 | syms_of_w32fns (); | |
fbd6baed GV |
1429 | syms_of_w32select (); |
1430 | syms_of_w32menu (); | |
02062ac3 | 1431 | syms_of_fontset (); |
8ba50e1a GV |
1432 | #endif /* HAVE_NTGUI */ |
1433 | ||
f927c5ae JB |
1434 | #ifdef SYMS_SYSTEM |
1435 | SYMS_SYSTEM; | |
1436 | #endif | |
1437 | ||
1438 | #ifdef SYMS_MACHINE | |
1439 | SYMS_MACHINE; | |
1440 | #endif | |
1441 | ||
1442 | keys_of_casefiddle (); | |
1443 | keys_of_cmds (); | |
1444 | keys_of_buffer (); | |
1445 | keys_of_keyboard (); | |
1446 | keys_of_keymap (); | |
1447 | keys_of_macros (); | |
1448 | keys_of_minibuf (); | |
1449 | keys_of_window (); | |
5e67fbc2 | 1450 | keys_of_frame (); |
f927c5ae JB |
1451 | } |
1452 | ||
8bb697c0 RS |
1453 | if (!noninteractive) |
1454 | { | |
1455 | #ifdef VMS | |
1456 | init_vms_input ();/* init_display calls get_frame_size, that needs this */ | |
1457 | #endif /* VMS */ | |
1458 | init_display (); /* Determine terminal type. init_sys_modes uses results */ | |
1459 | } | |
1a578e9b AC |
1460 | #ifndef macintosh |
1461 | /* Called before init_window_once for Mac OS. */ | |
8bb697c0 | 1462 | init_keyboard (); /* This too must precede init_sys_modes */ |
1a578e9b | 1463 | #endif |
8bb697c0 RS |
1464 | #ifdef VMS |
1465 | init_vmsproc (); /* And this too. */ | |
1466 | #endif /* VMS */ | |
1467 | init_sys_modes (); /* Init system terminal modes (RAW or CBREAK, etc.) */ | |
90d920b6 GM |
1468 | #ifdef HAVE_X_WINDOWS |
1469 | init_xfns (); | |
1470 | #endif /* HAVE_X_WINDOWS */ | |
1471 | init_fns (); | |
8bb697c0 RS |
1472 | init_xdisp (); |
1473 | init_macros (); | |
1474 | init_editfns (); | |
8bb697c0 | 1475 | init_floatfns (); |
8bb697c0 RS |
1476 | #ifdef VMS |
1477 | init_vmsfns (); | |
1478 | #endif /* VMS */ | |
1479 | init_process (); | |
90d920b6 GM |
1480 | #ifdef HAVE_SOUND |
1481 | init_sound (); | |
1482 | #endif | |
75816372 | 1483 | init_window (); |
8bb697c0 | 1484 | |
f927c5ae JB |
1485 | if (!initialized) |
1486 | { | |
e2925360 | 1487 | char *file; |
303901fb | 1488 | /* Handle -l loadup, args passed by Makefile. */ |
df6530f8 | 1489 | if (argmatch (argv, argc, "-l", "--load", 3, &file, &skip_args)) |
f927c5ae | 1490 | Vtop_level = Fcons (intern ("load"), |
e2925360 | 1491 | Fcons (build_string (file), Qnil)); |
f927c5ae JB |
1492 | #ifdef CANNOT_DUMP |
1493 | /* Unless next switch is -nl, load "loadup.el" first thing. */ | |
956e3c7e | 1494 | if (! no_loadup) |
f927c5ae JB |
1495 | Vtop_level = Fcons (intern ("load"), |
1496 | Fcons (build_string ("loadup.el"), Qnil)); | |
1497 | #endif /* CANNOT_DUMP */ | |
1498 | } | |
1499 | ||
93572b43 KH |
1500 | if (initialized) |
1501 | { | |
0269dedb RS |
1502 | #ifdef HAVE_TZSET |
1503 | { | |
1504 | /* If the execution TZ happens to be the same as the dump TZ, | |
1505 | change it to some other value and then change it back, | |
1506 | to force the underlying implementation to reload the TZ info. | |
1507 | This is needed on implementations that load TZ info from files, | |
1508 | since the TZ file contents may differ between dump and execution. */ | |
1509 | char *tz = getenv ("TZ"); | |
1510 | if (tz && !strcmp (tz, dump_tz)) | |
1511 | { | |
1512 | ++*tz; | |
1513 | tzset (); | |
1514 | --*tz; | |
1515 | } | |
1516 | } | |
1517 | #endif | |
93572b43 KH |
1518 | } |
1519 | ||
37a0ae84 GM |
1520 | /* Set up for profiling. This is known to work on FreeBSD and |
1521 | GNU/Linux. It might work on some other systems too. Give it a | |
1522 | try and tell us if it works on your system. To compile for | |
1523 | profiling use something like `make CFLAGS="-pg -g -O -DPROFILING=1'. */ | |
6a97197e | 1524 | #if defined (__FreeBSD__) || defined (__linux) |
e610ea43 RS |
1525 | #ifdef PROFILING |
1526 | if (initialized) | |
1527 | { | |
1528 | extern void _mcleanup (); | |
1529 | extern char etext; | |
90d920b6 | 1530 | extern void safe_bcopy (); |
67a5596f GM |
1531 | extern void dump_opcode_frequencies (); |
1532 | ||
e610ea43 | 1533 | atexit (_mcleanup); |
90d920b6 GM |
1534 | /* This uses safe_bcopy because that function comes first in the |
1535 | Emacs executable. It might be better to use something that | |
1536 | gives the start of the text segment, but start_of_text is not | |
1537 | defined on all systems now. */ | |
1538 | monstartup (safe_bcopy, &etext); | |
e610ea43 RS |
1539 | } |
1540 | else | |
1541 | moncontrol (0); | |
1542 | #endif | |
1543 | #endif | |
1544 | ||
f927c5ae JB |
1545 | initialized = 1; |
1546 | ||
e7536cff RS |
1547 | #ifdef LOCALTIME_CACHE |
1548 | /* Some versions of localtime have a bug. They cache the value of the time | |
279cc2b8 JB |
1549 | zone rather than looking it up every time. Since localtime() is |
1550 | called to bolt the undumping time into the undumped emacs, this | |
afe9fae9 RS |
1551 | results in localtime ignoring the TZ environment variable. |
1552 | This flushes the new TZ value into localtime. */ | |
1553 | tzset (); | |
e7536cff | 1554 | #endif /* defined (LOCALTIME_CACHE) */ |
279cc2b8 | 1555 | |
f927c5ae JB |
1556 | /* Enter editor command loop. This never returns. */ |
1557 | Frecursive_edit (); | |
1558 | /* NOTREACHED */ | |
6bbd7a29 | 1559 | return 0; |
f927c5ae JB |
1560 | } |
1561 | \f | |
081bef73 RS |
1562 | /* Sort the args so we can find the most important ones |
1563 | at the beginning of argv. */ | |
1564 | ||
1565 | /* First, here's a table of all the standard options. */ | |
1566 | ||
1567 | struct standard_args | |
1568 | { | |
1569 | char *name; | |
1570 | char *longname; | |
1571 | int priority; | |
1572 | int nargs; | |
1573 | }; | |
1574 | ||
1575 | struct standard_args standard_args[] = | |
1576 | { | |
05922407 RS |
1577 | { "-version", "--version", 150, 0 }, |
1578 | #ifdef HAVE_SHM | |
1579 | { "-nl", "--no-shared-memory", 140, 0 }, | |
1580 | #endif | |
2725719a | 1581 | #ifdef VMS |
05922407 | 1582 | { "-map", "--map-data", 130, 0 }, |
2725719a | 1583 | #endif |
05922407 RS |
1584 | { "-t", "--terminal", 120, 1 }, |
1585 | { "-nw", "--no-windows", 110, 0 }, | |
1586 | { "-batch", "--batch", 100, 0 }, | |
1587 | { "-help", "--help", 90, 0 }, | |
956e3c7e RS |
1588 | { "-no-unibyte", "--no-unibyte", 83, 0 }, |
1589 | { "-multibyte", "--multibyte", 82, 0 }, | |
1590 | { "-unibyte", "--unibyte", 81, 0 }, | |
1591 | { "-no-multibyte", "--no-multibyte", 80, 0 }, | |
05922407 | 1592 | #ifdef CANNOT_DUMP |
956e3c7e | 1593 | { "-nl", "--no-loadup", 70, 0 }, |
05922407 | 1594 | #endif |
956e3c7e RS |
1595 | /* -d must come last before the options handled in startup.el. */ |
1596 | { "-d", "--display", 60, 1 }, | |
1597 | { "-display", 0, 60, 1 }, | |
05922407 | 1598 | /* Now for the options handled in startup.el. */ |
081bef73 RS |
1599 | { "-q", "--no-init-file", 50, 0 }, |
1600 | { "-no-init-file", 0, 50, 0 }, | |
1601 | { "-no-site-file", "--no-site-file", 40, 0 }, | |
1602 | { "-u", "--user", 30, 1 }, | |
1603 | { "-user", 0, 30, 1 }, | |
1604 | { "-debug-init", "--debug-init", 20, 0 }, | |
adab4483 KH |
1605 | { "-i", "--icon-type", 15, 0 }, |
1606 | { "-itype", 0, 15, 0 }, | |
f2bc3538 | 1607 | { "-iconic", "--iconic", 15, 0 }, |
081bef73 RS |
1608 | { "-bg", "--background-color", 10, 1 }, |
1609 | { "-background", 0, 10, 1 }, | |
1610 | { "-fg", "--foreground-color", 10, 1 }, | |
1611 | { "-foreground", 0, 10, 1 }, | |
1612 | { "-bd", "--border-color", 10, 1 }, | |
1613 | { "-bw", "--border-width", 10, 1 }, | |
1614 | { "-ib", "--internal-border", 10, 1 }, | |
1615 | { "-ms", "--mouse-color", 10, 1 }, | |
1616 | { "-cr", "--cursor-color", 10, 1 }, | |
1617 | { "-fn", "--font", 10, 1 }, | |
1618 | { "-font", 0, 10, 1 }, | |
1619 | { "-g", "--geometry", 10, 1 }, | |
1620 | { "-geometry", 0, 10, 1 }, | |
1621 | { "-T", "--title", 10, 1 }, | |
ae63ae52 | 1622 | { "-title", 0, 10, 1 }, |
081bef73 RS |
1623 | { "-name", "--name", 10, 1 }, |
1624 | { "-xrm", "--xrm", 10, 1 }, | |
fcdeb5d9 RS |
1625 | { "-r", "--reverse-video", 5, 0 }, |
1626 | { "-rv", 0, 5, 0 }, | |
1627 | { "-reverse", 0, 5, 0 }, | |
ae63ae52 | 1628 | { "-hb", "--horizontal-scroll-bars", 5, 0 }, |
fcdeb5d9 | 1629 | { "-vb", "--vertical-scroll-bars", 5, 0 }, |
fcdeb5d9 RS |
1630 | /* These have the same priority as ordinary file name args, |
1631 | so they are not reordered with respect to those. */ | |
4af9e0b3 RS |
1632 | { "-L", "--directory", 0, 1 }, |
1633 | { "-directory", 0, 0, 1 }, | |
fcdeb5d9 RS |
1634 | { "-l", "--load", 0, 1 }, |
1635 | { "-load", 0, 0, 1 }, | |
1636 | { "-f", "--funcall", 0, 1 }, | |
1637 | { "-funcall", 0, 0, 1 }, | |
575985b1 | 1638 | { "-eval", "--eval", 0, 1 }, |
67a5596f | 1639 | { "-execute", "--execute", 0, 1 }, |
2e13f8e9 RS |
1640 | { "-find-file", "--find-file", 0, 1 }, |
1641 | { "-visit", "--visit", 0, 1 }, | |
67a5596f | 1642 | { "-file", "--file", 0, 1 }, |
fcdeb5d9 | 1643 | { "-insert", "--insert", 0, 1 }, |
f2bc3538 | 1644 | /* This should be processed after ordinary file name args and the like. */ |
fcdeb5d9 | 1645 | { "-kill", "--kill", -10, 0 }, |
081bef73 RS |
1646 | }; |
1647 | ||
1648 | /* Reorder the elements of ARGV (assumed to have ARGC elements) | |
1649 | so that the highest priority ones come first. | |
1650 | Do not change the order of elements of equal priority. | |
956e3c7e RS |
1651 | If an option takes an argument, keep it and its argument together. |
1652 | ||
1653 | If an option that takes no argument appears more | |
1654 | than once, eliminate all but one copy of it. */ | |
081bef73 RS |
1655 | |
1656 | static void | |
1657 | sort_args (argc, argv) | |
1658 | int argc; | |
1659 | char **argv; | |
1660 | { | |
1661 | char **new = (char **) xmalloc (sizeof (char *) * argc); | |
1662 | /* For each element of argv, | |
1663 | the corresponding element of options is: | |
1664 | 0 for an option that takes no arguments, | |
1665 | 1 for an option that takes one argument, etc. | |
1666 | -1 for an ordinary non-option argument. */ | |
6dad9359 | 1667 | int *options = (int *) xmalloc (sizeof (int) * argc); |
081bef73 RS |
1668 | int *priority = (int *) xmalloc (sizeof (int) * argc); |
1669 | int to = 1; | |
956e3c7e | 1670 | int incoming_used = 1; |
081bef73 RS |
1671 | int from; |
1672 | int i; | |
1673 | ||
1674 | /* Categorize all the options, | |
1675 | and figure out which argv elts are option arguments. */ | |
1676 | for (from = 1; from < argc; from++) | |
1677 | { | |
1678 | options[from] = -1; | |
fcdeb5d9 | 1679 | priority[from] = 0; |
081bef73 RS |
1680 | if (argv[from][0] == '-') |
1681 | { | |
1682 | int match, thislen; | |
1683 | char *equals; | |
1684 | ||
c96f26f4 RS |
1685 | /* If we have found "--", don't consider |
1686 | any more arguments as options. */ | |
249443b6 | 1687 | if (argv[from][1] == '-' && argv[from][2] == 0) |
c96f26f4 RS |
1688 | { |
1689 | /* Leave the "--", and everything following it, at the end. */ | |
1690 | for (; from < argc; from++) | |
1691 | { | |
1692 | priority[from] = -100; | |
1693 | options[from] = -1; | |
1694 | } | |
1695 | break; | |
1696 | } | |
1697 | ||
081bef73 RS |
1698 | /* Look for a match with a known old-fashioned option. */ |
1699 | for (i = 0; i < sizeof (standard_args) / sizeof (standard_args[0]); i++) | |
1700 | if (!strcmp (argv[from], standard_args[i].name)) | |
1701 | { | |
1702 | options[from] = standard_args[i].nargs; | |
1703 | priority[from] = standard_args[i].priority; | |
fd76ec52 RS |
1704 | if (from + standard_args[i].nargs >= argc) |
1705 | fatal ("Option `%s' requires an argument\n", argv[from]); | |
081bef73 RS |
1706 | from += standard_args[i].nargs; |
1707 | goto done; | |
1708 | } | |
1709 | ||
1710 | /* Look for a match with a known long option. | |
1711 | MATCH is -1 if no match so far, -2 if two or more matches so far, | |
1712 | >= 0 (the table index of the match) if just one match so far. */ | |
1713 | if (argv[from][1] == '-') | |
1714 | { | |
1715 | match = -1; | |
1716 | thislen = strlen (argv[from]); | |
1717 | equals = index (argv[from], '='); | |
1718 | if (equals != 0) | |
1719 | thislen = equals - argv[from]; | |
1720 | ||
f609ef57 KH |
1721 | for (i = 0; |
1722 | i < sizeof (standard_args) / sizeof (standard_args[0]); i++) | |
1723 | if (standard_args[i].longname | |
1724 | && !strncmp (argv[from], standard_args[i].longname, | |
1725 | thislen)) | |
081bef73 RS |
1726 | { |
1727 | if (match == -1) | |
1728 | match = i; | |
1729 | else | |
1730 | match = -2; | |
1731 | } | |
1732 | ||
1733 | /* If we found exactly one match, use that. */ | |
1734 | if (match >= 0) | |
1735 | { | |
1736 | options[from] = standard_args[match].nargs; | |
1737 | priority[from] = standard_args[match].priority; | |
1738 | /* If --OPTION=VALUE syntax is used, | |
1739 | this option uses just one argv element. */ | |
1740 | if (equals != 0) | |
1741 | options[from] = 0; | |
fd76ec52 RS |
1742 | if (from + options[from] >= argc) |
1743 | fatal ("Option `%s' requires an argument\n", argv[from]); | |
081bef73 RS |
1744 | from += options[from]; |
1745 | } | |
1746 | } | |
1747 | done: ; | |
1748 | } | |
1749 | } | |
1750 | ||
1751 | /* Copy the arguments, in order of decreasing priority, to NEW. */ | |
1752 | new[0] = argv[0]; | |
956e3c7e | 1753 | while (incoming_used < argc) |
081bef73 RS |
1754 | { |
1755 | int best = -1; | |
2c70c992 | 1756 | int best_priority = -9999; |
081bef73 RS |
1757 | |
1758 | /* Find the highest priority remaining option. | |
1759 | If several have equal priority, take the first of them. */ | |
1760 | for (from = 1; from < argc; from++) | |
1761 | { | |
1762 | if (argv[from] != 0 && priority[from] > best_priority) | |
1763 | { | |
1764 | best_priority = priority[from]; | |
1765 | best = from; | |
1766 | } | |
1767 | /* Skip option arguments--they are tied to the options. */ | |
1768 | if (options[from] > 0) | |
1769 | from += options[from]; | |
1770 | } | |
1771 | ||
1772 | if (best < 0) | |
1773 | abort (); | |
1774 | ||
956e3c7e RS |
1775 | /* Copy the highest priority remaining option, with its args, to NEW. |
1776 | Unless it is a duplicate of the previous one. */ | |
1777 | if (! (options[best] == 0 | |
1778 | && ! strcmp (new[to - 1], argv[best]))) | |
1779 | { | |
1780 | new[to++] = argv[best]; | |
1781 | for (i = 0; i < options[best]; i++) | |
1782 | new[to++] = argv[best + i + 1]; | |
1783 | } | |
1784 | ||
1785 | incoming_used += 1 + (options[best] > 0 ? options[best] : 0); | |
081bef73 RS |
1786 | |
1787 | /* Clear out this option in ARGV. */ | |
1788 | argv[best] = 0; | |
1789 | for (i = 0; i < options[best]; i++) | |
1790 | argv[best + i + 1] = 0; | |
1791 | } | |
1792 | ||
81b7af72 RS |
1793 | /* If duplicate options were deleted, fill up extra space with null ptrs. */ |
1794 | while (to < argc) | |
1795 | new[to++] = 0; | |
1796 | ||
6dad9359 | 1797 | bcopy (new, argv, sizeof (char *) * argc); |
0bf591da RS |
1798 | |
1799 | free (options); | |
1800 | free (new); | |
1801 | free (priority); | |
081bef73 RS |
1802 | } |
1803 | \f | |
f927c5ae | 1804 | DEFUN ("kill-emacs", Fkill_emacs, Skill_emacs, 0, 1, "P", |
edc8ae07 | 1805 | "Exit the Emacs job and kill it.\n\ |
f927c5ae JB |
1806 | If ARG is an integer, return ARG as the exit program code.\n\ |
1807 | If ARG is a string, stuff it as keyboard input.\n\n\ | |
1808 | The value of `kill-emacs-hook', if not void,\n\ | |
1809 | is a list of functions (of no args),\n\ | |
1810 | all of which are called before Emacs is actually killed.") | |
1811 | (arg) | |
1812 | Lisp_Object arg; | |
1813 | { | |
f927c5ae JB |
1814 | struct gcpro gcpro1; |
1815 | ||
1816 | GCPRO1 (arg); | |
1817 | ||
1818 | if (feof (stdin)) | |
1819 | arg = Qt; | |
1820 | ||
2447c626 | 1821 | if (!NILP (Vrun_hooks) && !noninteractive) |
f927c5ae JB |
1822 | call1 (Vrun_hooks, intern ("kill-emacs-hook")); |
1823 | ||
f927c5ae JB |
1824 | UNGCPRO; |
1825 | ||
1826 | /* Is it really necessary to do this deassign | |
1827 | when we are going to exit anyway? */ | |
1828 | /* #ifdef VMS | |
1829 | stop_vms_input (); | |
1830 | #endif */ | |
40be253a | 1831 | |
d0068e25 | 1832 | shut_down_emacs (0, 0, STRINGP (arg) ? arg : Qnil); |
40be253a | 1833 | |
58545838 KH |
1834 | /* If we have an auto-save list file, |
1835 | kill it because we are exiting Emacs deliberately (not crashing). | |
1836 | Do it after shut_down_emacs, which does an auto-save. */ | |
1837 | if (STRINGP (Vauto_save_list_file_name)) | |
1838 | unlink (XSTRING (Vauto_save_list_file_name)->data); | |
1839 | ||
55ccc0b3 | 1840 | exit (INTEGERP (arg) ? XINT (arg) |
f927c5ae JB |
1841 | #ifdef VMS |
1842 | : 1 | |
1843 | #else | |
1844 | : 0 | |
1845 | #endif | |
1846 | ); | |
1847 | /* NOTREACHED */ | |
1848 | } | |
40be253a JB |
1849 | |
1850 | ||
1851 | /* Perform an orderly shutdown of Emacs. Autosave any modified | |
1852 | buffers, kill any child processes, clean up the terminal modes (if | |
1853 | we're in the foreground), and other stuff like that. Don't perform | |
1854 | any redisplay; this may be called when Emacs is shutting down in | |
1855 | the background, or after its X connection has died. | |
1856 | ||
1857 | If SIG is a signal number, print a message for it. | |
1858 | ||
1859 | This is called by fatal signal handlers, X protocol error handlers, | |
1860 | and Fkill_emacs. */ | |
f7ab4e3d | 1861 | |
40be253a | 1862 | void |
f7ab4e3d | 1863 | shut_down_emacs (sig, no_x, stuff) |
41423a80 | 1864 | int sig, no_x; |
f7ab4e3d | 1865 | Lisp_Object stuff; |
40be253a | 1866 | { |
829d872b RS |
1867 | /* Prevent running of hooks from now on. */ |
1868 | Vrun_hooks = Qnil; | |
1869 | ||
40be253a JB |
1870 | /* If we are controlling the terminal, reset terminal modes */ |
1871 | #ifdef EMACS_HAVE_TTY_PGRP | |
1872 | { | |
d04d81d2 RS |
1873 | int pgrp = EMACS_GETPGRP (0); |
1874 | ||
40be253a JB |
1875 | int tpgrp; |
1876 | if (EMACS_GET_TTY_PGRP (0, &tpgrp) != -1 | |
5a570e37 | 1877 | && tpgrp == pgrp) |
40be253a JB |
1878 | { |
1879 | fflush (stdout); | |
1880 | reset_sys_modes (); | |
1881 | if (sig && sig != SIGTERM) | |
1882 | fprintf (stderr, "Fatal error (%d).", sig); | |
1883 | } | |
1884 | } | |
1885 | #else | |
1886 | fflush (stdout); | |
1887 | reset_sys_modes (); | |
1888 | #endif | |
1889 | ||
f7ab4e3d RS |
1890 | stuff_buffered_input (stuff); |
1891 | ||
40be253a JB |
1892 | kill_buffer_processes (Qnil); |
1893 | Fdo_auto_save (Qt, Qnil); | |
1894 | ||
1895 | #ifdef CLASH_DETECTION | |
1896 | unlock_all_files (); | |
1897 | #endif | |
1898 | ||
1899 | #ifdef VMS | |
1900 | kill_vms_processes (); | |
1901 | #endif | |
1902 | ||
5e7f8733 | 1903 | #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */ |
41423a80 | 1904 | #ifdef HAVE_X_WINDOWS |
f7511647 RS |
1905 | /* It's not safe to call intern here. Maybe we are crashing. */ |
1906 | if (!noninteractive && SYMBOLP (Vwindow_system) | |
1907 | && XSYMBOL (Vwindow_system)->name->size == 1 | |
1908 | && XSYMBOL (Vwindow_system)->name->data[0] == 'x' | |
1909 | && ! no_x) | |
41423a80 RS |
1910 | Fx_close_current_connection (); |
1911 | #endif /* HAVE_X_WINDOWS */ | |
5e7f8733 | 1912 | #endif |
41423a80 | 1913 | |
40be253a JB |
1914 | #ifdef SIGIO |
1915 | /* There is a tendency for a SIGIO signal to arrive within exit, | |
1916 | and cause a SIGHUP because the input descriptor is already closed. */ | |
1917 | unrequest_sigio (); | |
1918 | signal (SIGIO, SIG_IGN); | |
1919 | #endif | |
41f339d4 RS |
1920 | |
1921 | #ifdef WINDOWSNT | |
1922 | term_ntproc (); | |
1923 | #endif | |
d546e578 | 1924 | |
cd8d4168 GM |
1925 | /* Do this only if terminating normally, we want glyph matrices |
1926 | etc. in a core dump. */ | |
200f868e | 1927 | if (sig == 0 || sig == SIGTERM) |
cd8d4168 GM |
1928 | { |
1929 | check_glyph_memory (); | |
1930 | check_message_stack (); | |
1931 | } | |
90d920b6 | 1932 | |
d546e578 EZ |
1933 | #ifdef MSDOS |
1934 | dos_cleanup (); | |
1935 | #endif | |
40be253a JB |
1936 | } |
1937 | ||
1938 | ||
f927c5ae JB |
1939 | \f |
1940 | #ifndef CANNOT_DUMP | |
f927c5ae JB |
1941 | |
1942 | #ifdef HAVE_SHM | |
1943 | ||
1944 | DEFUN ("dump-emacs-data", Fdump_emacs_data, Sdump_emacs_data, 1, 1, 0, | |
1945 | "Dump current state of Emacs into data file FILENAME.\n\ | |
1946 | This function exists on systems that use HAVE_SHM.") | |
c9aae259 EN |
1947 | (filename) |
1948 | Lisp_Object filename; | |
f927c5ae | 1949 | { |
55697f5b | 1950 | extern char my_edata[]; |
f927c5ae | 1951 | Lisp_Object tem; |
f927c5ae | 1952 | |
4fab758d | 1953 | check_pure_size (); |
c9aae259 EN |
1954 | CHECK_STRING (filename, 0); |
1955 | filename = Fexpand_file_name (filename, Qnil); | |
f927c5ae JB |
1956 | |
1957 | tem = Vpurify_flag; | |
1958 | Vpurify_flag = Qnil; | |
1959 | ||
1960 | fflush (stdout); | |
1961 | /* Tell malloc where start of impure now is */ | |
1962 | /* Also arrange for warnings when nearly out of space. */ | |
1963 | #ifndef SYSTEM_MALLOC | |
1090a161 | 1964 | memory_warnings (my_edata, malloc_warning); |
f927c5ae | 1965 | #endif |
c9aae259 | 1966 | map_out_data (XSTRING (filename)->data); |
f927c5ae JB |
1967 | |
1968 | Vpurify_flag = tem; | |
1969 | ||
1970 | return Qnil; | |
1971 | } | |
1972 | ||
1973 | #else /* not HAVE_SHM */ | |
1974 | ||
1975 | DEFUN ("dump-emacs", Fdump_emacs, Sdump_emacs, 2, 2, 0, | |
1976 | "Dump current state of Emacs into executable file FILENAME.\n\ | |
1977 | Take symbols from SYMFILE (presumably the file you executed to run Emacs).\n\ | |
1978 | This is used in the file `loadup.el' when building Emacs.\n\ | |
1979 | \n\ | |
87a98b1a | 1980 | You must run Emacs in batch mode in order to dump it.") |
c9aae259 EN |
1981 | (filename, symfile) |
1982 | Lisp_Object filename, symfile; | |
f927c5ae | 1983 | { |
55697f5b | 1984 | extern char my_edata[]; |
f927c5ae | 1985 | Lisp_Object tem; |
1b7ddf4f | 1986 | Lisp_Object symbol; |
4fab758d GM |
1987 | int count = BINDING_STACK_SIZE (); |
1988 | ||
1989 | check_pure_size (); | |
f927c5ae | 1990 | |
87a98b1a RS |
1991 | if (! noninteractive) |
1992 | error ("Dumping Emacs works only in batch mode"); | |
1993 | ||
1b7ddf4f RS |
1994 | /* Bind `command-line-processed' to nil before dumping, |
1995 | so that the dumped Emacs will process its command line | |
1996 | and set up to work with X windows if appropriate. */ | |
1997 | symbol = intern ("command-line-process"); | |
1998 | specbind (symbol, Qnil); | |
1999 | ||
c9aae259 EN |
2000 | CHECK_STRING (filename, 0); |
2001 | filename = Fexpand_file_name (filename, Qnil); | |
2002 | if (!NILP (symfile)) | |
f927c5ae | 2003 | { |
c9aae259 EN |
2004 | CHECK_STRING (symfile, 0); |
2005 | if (XSTRING (symfile)->size) | |
2006 | symfile = Fexpand_file_name (symfile, Qnil); | |
f927c5ae JB |
2007 | } |
2008 | ||
2009 | tem = Vpurify_flag; | |
2010 | Vpurify_flag = Qnil; | |
2011 | ||
0269dedb RS |
2012 | #ifdef HAVE_TZSET |
2013 | set_time_zone_rule (dump_tz); | |
2014 | #ifndef LOCALTIME_CACHE | |
2015 | /* Force a tz reload, since set_time_zone_rule doesn't. */ | |
2016 | tzset (); | |
2017 | #endif | |
2018 | #endif | |
2019 | ||
f927c5ae JB |
2020 | fflush (stdout); |
2021 | #ifdef VMS | |
c9aae259 | 2022 | mapout_data (XSTRING (filename)->data); |
f927c5ae JB |
2023 | #else |
2024 | /* Tell malloc where start of impure now is */ | |
2025 | /* Also arrange for warnings when nearly out of space. */ | |
2026 | #ifndef SYSTEM_MALLOC | |
cc5f52cb RS |
2027 | #ifndef WINDOWSNT |
2028 | /* On Windows, this was done before dumping, and that once suffices. | |
2029 | Meanwhile, my_edata is not valid on Windows. */ | |
cb37cf78 | 2030 | memory_warnings (my_edata, malloc_warning); |
cc5f52cb | 2031 | #endif /* not WINDOWSNT */ |
15aaf1b5 RS |
2032 | #endif |
2033 | #ifdef DOUG_LEA_MALLOC | |
2034 | malloc_state_ptr = malloc_get_state (); | |
f927c5ae | 2035 | #endif |
2b7377ca | 2036 | |
a74c5ec1 | 2037 | #ifdef USE_MMAP_FOR_BUFFERS |
2b7377ca GM |
2038 | mmap_set_vars (0); |
2039 | #endif | |
c9aae259 EN |
2040 | unexec (XSTRING (filename)->data, |
2041 | !NILP (symfile) ? XSTRING (symfile)->data : 0, my_edata, 0, 0); | |
a74c5ec1 | 2042 | #ifdef USE_MMAP_FOR_BUFFERS |
2b7377ca GM |
2043 | mmap_set_vars (1); |
2044 | #endif | |
15aaf1b5 RS |
2045 | #ifdef DOUG_LEA_MALLOC |
2046 | free (malloc_state_ptr); | |
2047 | #endif | |
f927c5ae JB |
2048 | #endif /* not VMS */ |
2049 | ||
2050 | Vpurify_flag = tem; | |
2051 | ||
1b7ddf4f | 2052 | return unbind_to (count, Qnil); |
f927c5ae JB |
2053 | } |
2054 | ||
2055 | #endif /* not HAVE_SHM */ | |
2056 | ||
2057 | #endif /* not CANNOT_DUMP */ | |
2058 | \f | |
68c45bf0 PE |
2059 | #if HAVE_SETLOCALE |
2060 | /* Recover from setlocale (LC_ALL, ""). */ | |
2061 | void | |
2062 | fixup_locale () | |
2063 | { | |
68c45bf0 PE |
2064 | /* The Emacs Lisp reader needs LC_NUMERIC to be "C", |
2065 | so that numbers are read and printed properly for Emacs Lisp. */ | |
2066 | setlocale (LC_NUMERIC, "C"); | |
68c45bf0 PE |
2067 | } |
2068 | ||
0c8559bb PE |
2069 | /* Set system locale CATEGORY, with previous locale *PLOCALE, to |
2070 | DESIRED_LOCALE. */ | |
68c45bf0 PE |
2071 | static void |
2072 | synchronize_locale (category, plocale, desired_locale) | |
2073 | int category; | |
2074 | Lisp_Object *plocale; | |
2075 | Lisp_Object desired_locale; | |
2076 | { | |
0c8559bb PE |
2077 | if (! EQ (*plocale, desired_locale)) |
2078 | { | |
2079 | *plocale = desired_locale; | |
2080 | setlocale (category, (STRINGP (desired_locale) | |
59c65f1e | 2081 | ? (char *)(XSTRING (desired_locale)->data) |
0c8559bb PE |
2082 | : "")); |
2083 | } | |
68c45bf0 PE |
2084 | } |
2085 | ||
ca9c0567 | 2086 | /* Set system time locale to match Vsystem_time_locale, if possible. */ |
68c45bf0 | 2087 | void |
ca9c0567 | 2088 | synchronize_system_time_locale () |
68c45bf0 | 2089 | { |
ca9c0567 PE |
2090 | synchronize_locale (LC_TIME, &Vprevious_system_time_locale, |
2091 | Vsystem_time_locale); | |
68c45bf0 PE |
2092 | } |
2093 | ||
ca9c0567 PE |
2094 | /* Set system messages locale to match Vsystem_messages_locale, if |
2095 | possible. */ | |
68c45bf0 | 2096 | void |
ca9c0567 | 2097 | synchronize_system_messages_locale () |
68c45bf0 PE |
2098 | { |
2099 | #ifdef LC_MESSAGES | |
ca9c0567 PE |
2100 | synchronize_locale (LC_MESSAGES, &Vprevious_system_messages_locale, |
2101 | Vsystem_messages_locale); | |
68c45bf0 PE |
2102 | #endif |
2103 | } | |
2104 | #endif /* HAVE_SETLOCALE */ | |
2105 | \f | |
4b163808 | 2106 | #ifndef SEPCHAR |
f927c5ae JB |
2107 | #define SEPCHAR ':' |
2108 | #endif | |
2109 | ||
2110 | Lisp_Object | |
2111 | decode_env_path (evarname, defalt) | |
2112 | char *evarname, *defalt; | |
2113 | { | |
2114 | register char *path, *p; | |
213d0b1f | 2115 | Lisp_Object lpath, element, tem; |
f927c5ae | 2116 | |
2447c626 JB |
2117 | /* It's okay to use getenv here, because this function is only used |
2118 | to initialize variables when Emacs starts up, and isn't called | |
2119 | after that. */ | |
e065a56e JB |
2120 | if (evarname != 0) |
2121 | path = (char *) getenv (evarname); | |
2122 | else | |
2123 | path = 0; | |
f927c5ae JB |
2124 | if (!path) |
2125 | path = defalt; | |
6a30e6d6 RS |
2126 | #ifdef DOS_NT |
2127 | /* Ensure values from the environment use the proper directory separator. */ | |
2128 | if (path) | |
2129 | { | |
2130 | p = alloca (strlen (path) + 1); | |
2131 | strcpy (p, path); | |
2132 | path = p; | |
2133 | ||
2134 | if ('/' == DIRECTORY_SEP) | |
2135 | dostounix_filename (path); | |
2136 | else | |
2137 | unixtodos_filename (path); | |
2138 | } | |
2139 | #endif | |
f927c5ae JB |
2140 | lpath = Qnil; |
2141 | while (1) | |
2142 | { | |
2143 | p = index (path, SEPCHAR); | |
2144 | if (!p) p = path + strlen (path); | |
213d0b1f RS |
2145 | element = (p - path ? make_string (path, p - path) |
2146 | : build_string (".")); | |
2147 | ||
2148 | /* Add /: to the front of the name | |
2149 | if it would otherwise be treated as magic. */ | |
2150 | tem = Ffind_file_name_handler (element, Qt); | |
2151 | if (! NILP (tem)) | |
2152 | element = concat2 (build_string ("/:"), element); | |
2153 | ||
2154 | lpath = Fcons (element, lpath); | |
f927c5ae JB |
2155 | if (*p) |
2156 | path = p + 1; | |
2157 | else | |
2158 | break; | |
2159 | } | |
2160 | return Fnreverse (lpath); | |
2161 | } | |
2162 | ||
dfcf069d | 2163 | void |
f927c5ae JB |
2164 | syms_of_emacs () |
2165 | { | |
213d0b1f RS |
2166 | Qfile_name_handler_alist = intern ("file-name-handler-alist"); |
2167 | staticpro (&Qfile_name_handler_alist); | |
2168 | ||
83591e66 | 2169 | #ifndef CANNOT_DUMP |
f927c5ae JB |
2170 | #ifdef HAVE_SHM |
2171 | defsubr (&Sdump_emacs_data); | |
2172 | #else | |
2173 | defsubr (&Sdump_emacs); | |
83591e66 | 2174 | #endif |
f927c5ae JB |
2175 | #endif |
2176 | ||
2177 | defsubr (&Skill_emacs); | |
2178 | ||
59653951 | 2179 | defsubr (&Sinvocation_name); |
ace40a69 | 2180 | defsubr (&Sinvocation_directory); |
59653951 | 2181 | |
f927c5ae JB |
2182 | DEFVAR_LISP ("command-line-args", &Vcommand_line_args, |
2183 | "Args passed by shell to Emacs, as a list of strings."); | |
2184 | ||
2185 | DEFVAR_LISP ("system-type", &Vsystem_type, | |
2186 | "Value is symbol indicating type of operating system you are using."); | |
2187 | Vsystem_type = intern (SYSTEM_TYPE); | |
2188 | ||
271c7b7c | 2189 | DEFVAR_LISP ("system-configuration", &Vsystem_configuration, |
69bf528e AI |
2190 | "Value is string indicating configuration Emacs was built for.\n\ |
2191 | On MS-Windows, the value reflects the OS flavor and version on which\n\ | |
2192 | Emacs is running."); | |
f7511647 | 2193 | Vsystem_configuration = build_string (EMACS_CONFIGURATION); |
271c7b7c | 2194 | |
f0fc0b1a KH |
2195 | DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options, |
2196 | "String containing the configuration options Emacs was built with."); | |
2197 | Vsystem_configuration_options = build_string (EMACS_CONFIG_OPTIONS); | |
2198 | ||
f927c5ae JB |
2199 | DEFVAR_BOOL ("noninteractive", &noninteractive1, |
2200 | "Non-nil means Emacs is running without interactive terminal."); | |
e5d77022 | 2201 | |
e5d77022 | 2202 | DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook, |
edc8ae07 JB |
2203 | "Hook to be run whenever kill-emacs is called.\n\ |
2204 | Since kill-emacs may be invoked when the terminal is disconnected (or\n\ | |
2205 | in other similar situations), functions placed on this hook should not\n\ | |
9f232a5d RS |
2206 | expect to be able to interact with the user. To ask for confirmation,\n\ |
2207 | see `kill-emacs-query-functions' instead."); | |
edc8ae07 | 2208 | Vkill_emacs_hook = Qnil; |
3005da00 | 2209 | |
7317d9e8 RS |
2210 | #ifdef SIGUSR1 |
2211 | DEFVAR_LISP ("signal-USR1-hook", &Vsignal_USR1_hook, | |
3e75bb9e | 2212 | "Hook to be run whenever emacs receives a USR1 signal"); |
7317d9e8 RS |
2213 | Vsignal_USR1_hook = Qnil; |
2214 | #ifdef SIGUSR2 | |
2215 | DEFVAR_LISP ("signal-USR2-hook", &Vsignal_USR2_hook, | |
3e75bb9e | 2216 | "Hook to be run whenever emacs receives a USR2 signal"); |
7317d9e8 RS |
2217 | Vsignal_USR2_hook = Qnil; |
2218 | #endif | |
2219 | #endif | |
2220 | ||
2221 | ||
3005da00 RS |
2222 | DEFVAR_INT ("emacs-priority", &emacs_priority, |
2223 | "Priority for Emacs to run at.\n\ | |
2224 | This value is effective only if set before Emacs is dumped,\n\ | |
2225 | and only if the Emacs executable is installed with setuid to permit\n\ | |
621ecf99 | 2226 | it to change priority. (Emacs sets its uid back to the real uid.)\n\ |
a422068f | 2227 | Currently, you need to define SET_EMACS_PRIORITY in `config.h'\n\ |
e7a9e1c3 RS |
2228 | before you compile Emacs, to enable the code for this feature."); |
2229 | emacs_priority = 0; | |
074a066b GV |
2230 | |
2231 | DEFVAR_LISP ("path-separator", &Vpath_separator, | |
2232 | "The directory separator in search paths, as a string."); | |
2233 | { | |
2234 | char c = SEPCHAR; | |
2235 | Vpath_separator = make_string (&c, 1); | |
2236 | } | |
59653951 | 2237 | |
f67de86f RS |
2238 | DEFVAR_LISP ("invocation-name", &Vinvocation_name, |
2239 | "The program name that was used to run Emacs.\n\ | |
2240 | Any directory names are omitted."); | |
2241 | ||
2242 | DEFVAR_LISP ("invocation-directory", &Vinvocation_directory, | |
2243 | "The directory in which the Emacs executable was found, to run it.\n\ | |
2244 | The value is nil if that directory's name is not known."); | |
2245 | ||
2246 | DEFVAR_LISP ("installation-directory", &Vinstallation_directory, | |
2247 | "A directory within which to look for the `lib-src' and `etc' directories.\n\ | |
2248 | This is non-nil when we can't find those directories in their standard\n\ | |
2249 | installed locations, but we can find them\n\ | |
2250 | near where the Emacs executable was found."); | |
07f4d123 | 2251 | Vinstallation_directory = Qnil; |
68c45bf0 | 2252 | |
ca9c0567 | 2253 | DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale, |
68c45bf0 | 2254 | "System locale for messages."); |
ca9c0567 | 2255 | Vsystem_messages_locale = Qnil; |
68c45bf0 | 2256 | |
ca9c0567 PE |
2257 | DEFVAR_LISP ("previous-system-messages-locale", |
2258 | &Vprevious_system_messages_locale, | |
68c45bf0 | 2259 | "Most recently used system locale for messages."); |
ca9c0567 | 2260 | Vprevious_system_messages_locale = Qnil; |
68c45bf0 | 2261 | |
ca9c0567 | 2262 | DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale, |
68c45bf0 | 2263 | "System locale for time."); |
ca9c0567 | 2264 | Vsystem_time_locale = Qnil; |
68c45bf0 | 2265 | |
ca9c0567 | 2266 | DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale, |
68c45bf0 | 2267 | "Most recently used system locale for time."); |
ca9c0567 | 2268 | Vprevious_system_time_locale = Qnil; |
f927c5ae | 2269 | } |