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) |
90553aa3 | 69 | #undef setpgrp |
f95c3f91 GM |
70 | #define setpgrp setpgid |
71 | #endif | |
2b7e8799 | 72 | #endif |
f95c3f91 | 73 | |
90553aa3 DL |
74 | extern void malloc_warning P_ ((char *)); |
75 | extern void set_time_zone_rule P_ ((char *)); | |
8892f40b GM |
76 | #ifdef HAVE_INDEX |
77 | extern char *index P_ ((const char *, int)); | |
78 | #endif | |
43165242 | 79 | |
30aa3f19 GM |
80 | /* Make these values available in GDB, which doesn't see macros. */ |
81 | ||
82 | EMACS_INT gdb_valbits = VALBITS; | |
83 | EMACS_INT gdb_gctypebits = GCTYPEBITS; | |
84 | EMACS_INT gdb_emacs_intbits = sizeof (EMACS_INT) * BITS_PER_CHAR; | |
85 | #ifdef DATA_SEG_BITS | |
86 | EMACS_INT gdb_data_seg_bits = DATA_SEG_BITS; | |
87 | #else | |
88 | EMACS_INT gdb_data_seg_bits = 0; | |
89 | #endif | |
00da0e4a | 90 | EMACS_INT PVEC_FLAG = PSEUDOVECTOR_FLAG; |
30aa3f19 | 91 | |
f927c5ae JB |
92 | /* Command line args from shell, as list of strings */ |
93 | Lisp_Object Vcommand_line_args; | |
94 | ||
59653951 JB |
95 | /* The name under which Emacs was invoked, with any leading directory |
96 | names discarded. */ | |
97 | Lisp_Object Vinvocation_name; | |
98 | ||
ace40a69 RS |
99 | /* The directory name from which Emacs was invoked. */ |
100 | Lisp_Object Vinvocation_directory; | |
101 | ||
07f4d123 RS |
102 | /* The directory name in which to find subdirs such as lisp and etc. |
103 | nil means get them only from PATH_LOADSEARCH. */ | |
104 | Lisp_Object Vinstallation_directory; | |
105 | ||
e5d77022 JB |
106 | /* Hook run by `kill-emacs' before it does really anything. */ |
107 | Lisp_Object Vkill_emacs_hook; | |
108 | ||
7317d9e8 RS |
109 | #ifdef SIGUSR1 |
110 | /* Hooks for signal USR1 and USR2 handing */ | |
111 | Lisp_Object Vsignal_USR1_hook; | |
112 | #ifdef SIGUSR2 | |
113 | Lisp_Object Vsignal_USR2_hook; | |
114 | #endif | |
115 | #endif | |
116 | ||
074a066b GV |
117 | /* Search path separator. */ |
118 | Lisp_Object Vpath_separator; | |
119 | ||
f927c5ae JB |
120 | /* Set nonzero after Emacs has started up the first time. |
121 | Prevents reinitialization of the Lisp world and keymaps | |
122 | on subsequent starts. */ | |
123 | int initialized; | |
124 | ||
15aaf1b5 RS |
125 | #ifdef DOUG_LEA_MALLOC |
126 | /* Preserves a pointer to the memory allocated that copies that | |
127 | static data inside glibc's malloc. */ | |
128 | void *malloc_state_ptr; | |
129 | /* From glibc, a routine that returns a copy of the malloc internal state. */ | |
130 | extern void *malloc_get_state (); | |
131 | /* From glibc, a routine that overwrites the malloc internal state. */ | |
132 | extern void malloc_set_state (); | |
7c9cd446 AS |
133 | /* Non-zero if the MALLOC_CHECK_ enviroment variable was set while |
134 | dumping. Used to work around a bug in glibc's malloc. */ | |
135 | int malloc_using_checking; | |
15aaf1b5 RS |
136 | #endif |
137 | ||
271c7b7c | 138 | /* Variable whose value is symbol giving operating system type. */ |
f927c5ae | 139 | Lisp_Object Vsystem_type; |
271c7b7c RS |
140 | |
141 | /* Variable whose value is string giving configuration built for. */ | |
142 | Lisp_Object Vsystem_configuration; | |
f0fc0b1a KH |
143 | |
144 | /* Variable whose value is string giving configuration options, | |
145 | for use when reporting bugs. */ | |
146 | Lisp_Object Vsystem_configuration_options; | |
147 | ||
213d0b1f RS |
148 | Lisp_Object Qfile_name_handler_alist; |
149 | ||
68c45bf0 | 150 | /* Current and previous system locales for messages and time. */ |
ca9c0567 PE |
151 | Lisp_Object Vsystem_messages_locale; |
152 | Lisp_Object Vprevious_system_messages_locale; | |
153 | Lisp_Object Vsystem_time_locale; | |
154 | Lisp_Object Vprevious_system_time_locale; | |
68c45bf0 | 155 | |
f927c5ae JB |
156 | /* If non-zero, emacs should not attempt to use an window-specific code, |
157 | but instead should use the virtual terminal under which it was started */ | |
158 | int inhibit_window_system; | |
159 | ||
5aa7f46a JB |
160 | /* If nonzero, set Emacs to run at this priority. This is also used |
161 | in child_setup and sys_suspend to make sure subshells run at normal | |
162 | priority; Those functions have their own extern declaration. */ | |
3005da00 RS |
163 | int emacs_priority; |
164 | ||
7074fde6 FP |
165 | /* If non-zero a filter or a sentinel is running. Tested to save the match |
166 | data on the first attempt to change it inside asynchronous code. */ | |
167 | int running_asynch_code; | |
168 | ||
647cec74 | 169 | #ifdef BSD_PGRPS |
9ae8f997 JB |
170 | /* See sysdep.c. */ |
171 | extern int inherited_pgroup; | |
172 | #endif | |
173 | ||
f927c5ae JB |
174 | #ifdef HAVE_X_WINDOWS |
175 | /* If non-zero, -d was specified, meaning we're using some window system. */ | |
176 | int display_arg; | |
177 | #endif | |
178 | ||
179 | /* An address near the bottom of the stack. | |
180 | Tells GC how to save a copy of the stack. */ | |
181 | char *stack_bottom; | |
182 | ||
8ba50e1a | 183 | #ifdef HAVE_WINDOW_SYSTEM |
f927c5ae | 184 | extern Lisp_Object Vwindow_system; |
8ba50e1a | 185 | #endif /* HAVE_WINDOW_SYSTEM */ |
f927c5ae | 186 | |
1090a161 RS |
187 | extern Lisp_Object Vauto_save_list_file_name; |
188 | ||
f927c5ae JB |
189 | #ifdef USG_SHARED_LIBRARIES |
190 | /* If nonzero, this is the place to put the end of the writable segment | |
191 | at startup. */ | |
192 | ||
193 | unsigned int bss_end = 0; | |
194 | #endif | |
195 | ||
196 | /* Nonzero means running Emacs without interactive terminal. */ | |
197 | ||
198 | int noninteractive; | |
199 | ||
200 | /* Value of Lisp variable `noninteractive'. | |
201 | Normally same as C variable `noninteractive' | |
202 | but nothing terrible happens if user sets this one. */ | |
203 | ||
204 | int noninteractive1; | |
e29f86e4 RS |
205 | |
206 | /* Save argv and argc. */ | |
207 | char **initial_argv; | |
208 | int initial_argc; | |
081bef73 RS |
209 | |
210 | static void sort_args (); | |
dfcf069d | 211 | void syms_of_emacs (); |
bd4590ba | 212 | |
73ebcd25 | 213 | #define USAGE1 "\ |
bd4590ba GM |
214 | Usage: %s [OPTION-OR-FILENAME]...\n\ |
215 | \n\ | |
216 | Run Emacs, the extensible, customizable, self-documenting real-time\n\ | |
217 | display editor. The recommended way to start Emacs for normal editing\n\ | |
218 | is with no options at all.\n\ | |
219 | \n\ | |
220 | Run M-x info RET m emacs RET m command arguments RET inside Emacs to\n\ | |
221 | read the main documentation for these command-line arguments.\n\ | |
222 | \n\ | |
223 | Initialization options:\n\ | |
224 | \n\ | |
225 | --batch do not do interactive display; implies -q\n\ | |
226 | --debug-init enable Emacs Lisp debugger during init file\n\ | |
227 | --help display this help message and exit\n\ | |
228 | --multibyte, --no-unibyte run Emacs in multibyte mode\n\ | |
229 | --no-init-file, -q load neither ~/.emacs nor default.el\n\ | |
230 | --no-shared-memory, -nl do not use shared memory\n\ | |
231 | --no-site-file do not load site-start.el\n\ | |
232 | --no-windows, -nw don't communicate with X, ignoring $DISPLAY\n\ | |
233 | --terminal, -t DEVICE use DEVICE for terminal I/O\n\ | |
234 | --unibyte, --no-multibyte run Emacs in unibyte mode\n\ | |
235 | --user, -u USER load ~USER/.emacs instead of your own\n\ | |
236 | --version display version information and exit\n\ | |
237 | \n\ | |
238 | Action options:\n\ | |
239 | \n\ | |
240 | FILE visit FILE using find-file\n\ | |
241 | +LINENUM FILE visit FILE using find-file, then go to line LINENUM\n\ | |
242 | --directory, -L DIR add DIR to variable load-path\n\ | |
243 | --eval EXPR evaluate Emacs Lisp expression EXPR\n\ | |
244 | --execute EXPR evaluate Emacs Lisp expression EXPR\n\ | |
245 | --find-file FILE visit FILE\n\ | |
246 | --funcall, -f FUNC call Emacs function FUNC with no arguments\n\ | |
247 | --insert FILE insert contents of FILE into current buffer\n\ | |
248 | --kill exit without asking for confirmation\n\ | |
249 | --load, -l FILE load FILE of Emacs Lisp code using the load function\n\ | |
250 | --visit FILE visit FILE\n\ | |
73ebcd25 AI |
251 | \n" |
252 | ||
253 | #define USAGE2 "\ | |
5b2ca26b | 254 | Display options:\n\ |
bd4590ba GM |
255 | \n\ |
256 | --background-color, -bg COLOR window background color\n\ | |
257 | --border-color, -bd COLOR main border color\n\ | |
258 | --border-width, -bw WIDTH width of main border\n\ | |
259 | --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\ | |
260 | --display, -d DISPLAY use X server DISPLAY\n\ | |
261 | --font, -fn FONT default font; must be fixed-widthp\n\ | |
262 | --foreground-color, -fg COLOR window foreground color\n\ | |
263 | --geometry, -g GEOMETRY window geometry\n\ | |
264 | --iconic start Emacs in iconified state\n\ | |
265 | --icon-type, -i use picture of gnu for Emacs icon\n\ | |
266 | --internal-border, -ib WIDTH width between text and main border\n\ | |
ecb5709c | 267 | --line-spacing, -lsp PIXELS additional space to put between lines\n\ |
bd4590ba GM |
268 | --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\ |
269 | --name NAME title of main Emacs window\n\ | |
270 | --reverse-video, -r, -rv switch foreground and background\n\ | |
271 | --title, -T, -wn, TITLE title for Emacs windows\n\ | |
272 | --vertical-scroll-bars, -vb enable vertical scroll bars\n\ | |
273 | --xrm XRESOURCES set additional X resources\n\ | |
274 | \n\ | |
275 | You can generally also specify long option names with a single -; for\n\ | |
276 | example, -batch as well as --batch. You can use any unambiguous\n\ | |
277 | abbreviation for a --option.\n\ | |
278 | \n\ | |
279 | Various environment variables and window system resources also affect\n\ | |
280 | Emacs' operation. See the main documentation.\n\ | |
281 | \n\ | |
282 | Report bugs to bug-gnu-emacs@gnu.org. First, please see the Bugs\n\ | |
283 | section of the Emacs manual or the file BUGS.\n" | |
284 | ||
f927c5ae JB |
285 | \f |
286 | /* Signal code for the fatal signal that was received */ | |
287 | int fatal_error_code; | |
288 | ||
289 | /* Nonzero if handling a fatal error already */ | |
290 | int fatal_error_in_progress; | |
291 | ||
7317d9e8 | 292 | #ifdef SIGUSR1 |
7317d9e8 RS |
293 | SIGTYPE |
294 | handle_USR1_signal (sig) | |
295 | int sig; | |
296 | { | |
5bda49c6 RS |
297 | struct input_event buf; |
298 | ||
75816372 | 299 | bzero (&buf, sizeof buf); |
5b50dae1 | 300 | buf.kind = USER_SIGNAL_EVENT; |
74c2d1c6 | 301 | buf.frame_or_window = selected_frame; |
5bda49c6 RS |
302 | |
303 | kbd_buffer_store_event (&buf); | |
7317d9e8 | 304 | } |
5bda49c6 | 305 | #endif /* SIGUSR1 */ |
fcf01ad3 | 306 | |
7317d9e8 | 307 | #ifdef SIGUSR2 |
7317d9e8 RS |
308 | SIGTYPE |
309 | handle_USR2_signal (sig) | |
310 | int sig; | |
311 | { | |
5bda49c6 RS |
312 | struct input_event buf; |
313 | ||
75816372 | 314 | bzero (&buf, sizeof buf); |
5b50dae1 | 315 | buf.kind = USER_SIGNAL_EVENT; |
e2fa15ff | 316 | buf.code = 1; |
74c2d1c6 | 317 | buf.frame_or_window = selected_frame; |
5bda49c6 RS |
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 | { | |
1f9c3929 | 665 | #ifndef USE_CRT_DLL |
b6779252 | 666 | extern char **environ; |
1f9c3929 | 667 | #endif |
6000fe37 | 668 | |
15aaf1b5 RS |
669 | if (initialized) |
670 | { | |
7c9cd446 AS |
671 | if (!malloc_using_checking) |
672 | /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be | |
673 | ignored if the heap to be restored was constructed without | |
d942e12a AS |
674 | malloc checking. Can't use unsetenv, since that calls malloc. */ |
675 | { | |
676 | char **p; | |
677 | ||
b6779252 | 678 | for (p = environ; *p; p++) |
d942e12a AS |
679 | if (strncmp (*p, "MALLOC_CHECK_=", 14) == 0) |
680 | { | |
681 | do | |
682 | *p = p[1]; | |
683 | while (*++p); | |
684 | break; | |
685 | } | |
686 | } | |
b6779252 | 687 | |
15aaf1b5 RS |
688 | malloc_set_state (malloc_state_ptr); |
689 | free (malloc_state_ptr); | |
690 | } | |
7c9cd446 AS |
691 | else |
692 | malloc_using_checking = getenv ("MALLOC_CHECK_") != NULL; | |
b6779252 KH |
693 | } |
694 | ||
695 | void (*__malloc_initialize_hook) () = malloc_initialize_hook; | |
696 | ||
697 | #endif /* DOUG_LEA_MALLOC */ | |
698 | ||
699 | /* ARGSUSED */ | |
700 | int | |
701 | main (argc, argv, envp) | |
702 | int argc; | |
703 | char **argv; | |
704 | char **envp; | |
705 | { | |
2313132f | 706 | #if GC_MARK_STACK |
39ec21ea GM |
707 | Lisp_Object dummy; |
708 | #endif | |
b6779252 | 709 | char stack_bottom_variable; |
68c45bf0 | 710 | int do_initial_setlocale; |
b6779252 | 711 | int skip_args = 0; |
1f9c3929 | 712 | #ifndef USE_CRT_DLL |
b6779252 KH |
713 | extern int errno; |
714 | extern int sys_nerr; | |
1f9c3929 | 715 | #endif |
b6779252 KH |
716 | #ifdef HAVE_SETRLIMIT |
717 | struct rlimit rlim; | |
718 | #endif | |
719 | int no_loadup = 0; | |
720 | ||
2313132f | 721 | #if GC_MARK_STACK |
39ec21ea GM |
722 | extern Lisp_Object *stack_base; |
723 | stack_base = &dummy; | |
724 | #endif | |
725 | ||
b6779252 KH |
726 | #ifdef LINUX_SBRK_BUG |
727 | __sbrk (1); | |
15aaf1b5 RS |
728 | #endif |
729 | ||
d785cf9e RS |
730 | #ifdef RUN_TIME_REMAP |
731 | if (initialized) | |
732 | run_time_remap (argv[0]); | |
733 | #endif | |
734 | ||
081bef73 | 735 | sort_args (argc, argv); |
956e3c7e RS |
736 | argc = 0; |
737 | while (argv[argc]) argc++; | |
081bef73 | 738 | |
3270ae6e KH |
739 | if (argmatch (argv, argc, "-version", "--version", 3, NULL, &skip_args) |
740 | /* We don't know the version number unless this is a dumped Emacs. | |
741 | So ignore --version otherwise. */ | |
742 | && initialized) | |
1702afef RS |
743 | { |
744 | Lisp_Object tem; | |
745 | tem = Fsymbol_value (intern ("emacs-version")); | |
746 | if (!STRINGP (tem)) | |
747 | { | |
748 | fprintf (stderr, "Invalid value of `emacs-version'\n"); | |
749 | exit (1); | |
750 | } | |
751 | else | |
752 | { | |
30ce1583 | 753 | printf ("GNU Emacs %s\n", XSTRING (tem)->data); |
7e8e59d0 | 754 | printf ("Copyright (C) 1999 Free Software Foundation, Inc.\n"); |
b455c665 RS |
755 | printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n"); |
756 | printf ("You may redistribute copies of Emacs\n"); | |
757 | printf ("under the terms of the GNU General Public License.\n"); | |
758 | printf ("For more information about these matters, "); | |
94487c4e | 759 | printf ("see the file named COPYING.\n"); |
1702afef RS |
760 | exit (0); |
761 | } | |
762 | } | |
763 | ||
f927c5ae JB |
764 | /* Map in shared memory, if we are using that. */ |
765 | #ifdef HAVE_SHM | |
df6530f8 | 766 | if (argmatch (argv, argc, "-nl", "--no-shared-memory", 6, NULL, &skip_args)) |
f927c5ae JB |
767 | { |
768 | map_in_data (0); | |
769 | /* The shared memory was just restored, which clobbered this. */ | |
770 | skip_args = 1; | |
771 | } | |
772 | else | |
773 | { | |
774 | map_in_data (1); | |
775 | /* The shared memory was just restored, which clobbered this. */ | |
776 | skip_args = 0; | |
777 | } | |
778 | #endif | |
779 | ||
19a36ec6 | 780 | #ifdef NeXT |
b9df9faa KH |
781 | { |
782 | extern int malloc_cookie; | |
783 | /* This helps out unexnext.c. */ | |
784 | if (initialized) | |
785 | if (malloc_jumpstart (malloc_cookie) != 0) | |
786 | printf ("malloc jumpstart failed!\n"); | |
787 | } | |
19a36ec6 RS |
788 | #endif /* NeXT */ |
789 | ||
f927c5ae JB |
790 | #ifdef VMS |
791 | /* If -map specified, map the data file in */ | |
e2925360 KH |
792 | { |
793 | char *file; | |
df6530f8 | 794 | if (argmatch (argv, argc, "-map", "--map-data", 3, &mapin_file, &skip_args)) |
e2925360 KH |
795 | mapin_data (file); |
796 | } | |
f927c5ae JB |
797 | |
798 | #ifdef LINK_CRTL_SHARE | |
34035df3 | 799 | #ifdef SHARABLE_LIB_BUG |
f927c5ae JB |
800 | /* Bletcherous shared libraries! */ |
801 | if (!stdin) | |
802 | stdin = fdopen (0, "r"); | |
803 | if (!stdout) | |
804 | stdout = fdopen (1, "w"); | |
805 | if (!stderr) | |
806 | stderr = fdopen (2, "w"); | |
807 | if (!environ) | |
808 | environ = envp; | |
34035df3 | 809 | #endif /* SHARABLE_LIB_BUG */ |
f927c5ae JB |
810 | #endif /* LINK_CRTL_SHARE */ |
811 | #endif /* VMS */ | |
812 | ||
ea2acec5 | 813 | #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK) |
6c2935e9 RS |
814 | /* Extend the stack space available. |
815 | Don't do that if dumping, since some systems (e.g. DJGPP) | |
816 | might define a smaller stack limit at that time. */ | |
817 | if (1 | |
818 | #ifndef CANNOT_DUMP | |
819 | && (!noninteractive || initialized) | |
820 | #endif | |
821 | && !getrlimit (RLIMIT_STACK, &rlim)) | |
53c58b5d | 822 | { |
509a8fcd | 823 | long newlim; |
6c2935e9 | 824 | extern int re_max_failures; |
03effc23 KH |
825 | /* Approximate the amount regex.c needs per unit of re_max_failures. */ |
826 | int ratio = 20 * sizeof (char *); | |
827 | /* Then add 33% to cover the size of the smaller stacks that regex.c | |
828 | successively allocates and discards, on its way to the maximum. */ | |
829 | ratio += ratio / 3; | |
830 | /* Add in some extra to cover | |
831 | what we're likely to use for other reasons. */ | |
832 | newlim = re_max_failures * ratio + 200000; | |
d0381a7f RS |
833 | #ifdef __NetBSD__ |
834 | /* NetBSD (at least NetBSD 1.2G and former) has a bug in its | |
835 | stack allocation routine for new process that the allocation | |
836 | fails if stack limit is not on page boundary. So, round up the | |
837 | new limit to page boundary. */ | |
838 | newlim = (newlim + getpagesize () - 1) / getpagesize () * getpagesize(); | |
839 | #endif | |
509a8fcd | 840 | if (newlim > rlim.rlim_max) |
6c2935e9 RS |
841 | { |
842 | newlim = rlim.rlim_max; | |
03effc23 KH |
843 | /* Don't let regex.c overflow the stack we have. */ |
844 | re_max_failures = (newlim - 200000) / ratio; | |
6c2935e9 | 845 | } |
509a8fcd RS |
846 | if (rlim.rlim_cur < newlim) |
847 | rlim.rlim_cur = newlim; | |
848 | ||
53c58b5d RS |
849 | setrlimit (RLIMIT_STACK, &rlim); |
850 | } | |
ea2acec5 | 851 | #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */ |
53c58b5d | 852 | |
f927c5ae JB |
853 | /* Record (approximately) where the stack begins. */ |
854 | stack_bottom = &stack_bottom_variable; | |
855 | ||
f927c5ae JB |
856 | #ifdef USG_SHARED_LIBRARIES |
857 | if (bss_end) | |
1d233b80 | 858 | brk ((void *)bss_end); |
f927c5ae JB |
859 | #endif |
860 | ||
861 | clearerr (stdin); | |
9ae8f997 | 862 | |
f927c5ae | 863 | #ifndef SYSTEM_MALLOC |
bf7f4e90 RS |
864 | /* Arrange to get warning messages as memory fills up. */ |
865 | memory_warnings (0, malloc_warning); | |
9ac0d9e0 | 866 | |
f5a3c8c4 AI |
867 | /* Call malloc at least once, to run the initial __malloc_hook. |
868 | Also call realloc and free for consistency. */ | |
869 | free (realloc (malloc (4), 4)); | |
bf7f4e90 RS |
870 | |
871 | /* Arrange to disable interrupt input inside malloc etc. */ | |
872 | uninterrupt_malloc (); | |
f927c5ae JB |
873 | #endif /* not SYSTEM_MALLOC */ |
874 | ||
29b89fe0 RS |
875 | #ifdef MSDOS |
876 | /* We do all file input/output as binary files. When we need to translate | |
877 | newlines, we do that manually. */ | |
878 | _fmode = O_BINARY; | |
18198bb2 RS |
879 | |
880 | #if __DJGPP__ >= 2 | |
881 | if (!isatty (fileno (stdin))) | |
882 | setmode (fileno (stdin), O_BINARY); | |
883 | if (!isatty (fileno (stdout))) | |
884 | { | |
885 | fflush (stdout); | |
886 | setmode (fileno (stdout), O_BINARY); | |
887 | } | |
888 | #else /* not __DJGPP__ >= 2 */ | |
29b89fe0 RS |
889 | (stdin)->_flag &= ~_IOTEXT; |
890 | (stdout)->_flag &= ~_IOTEXT; | |
891 | (stderr)->_flag &= ~_IOTEXT; | |
18198bb2 | 892 | #endif /* not __DJGPP__ >= 2 */ |
29b89fe0 RS |
893 | #endif /* MSDOS */ |
894 | ||
a422068f | 895 | #ifdef SET_EMACS_PRIORITY |
3005da00 | 896 | if (emacs_priority) |
5aa7f46a | 897 | nice (emacs_priority); |
f927c5ae | 898 | setuid (getuid ()); |
a422068f | 899 | #endif /* SET_EMACS_PRIORITY */ |
f927c5ae | 900 | |
68c45bf0 PE |
901 | /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case. |
902 | The build procedure uses this while dumping, to ensure that the | |
903 | dumped Emacs does not have its system locale tables initialized, | |
904 | as that might cause screwups when the dumped Emacs starts up. */ | |
905 | { | |
906 | char *lc_all = getenv ("LC_ALL"); | |
907 | do_initial_setlocale = ! lc_all || strcmp (lc_all, "C"); | |
908 | } | |
909 | ||
910 | /* Set locale now, so that initial error messages are localized properly. | |
911 | fixup_locale must wait until later, since it builds strings. */ | |
912 | if (do_initial_setlocale) | |
913 | setlocale (LC_ALL, ""); | |
914 | ||
d8b3a65d | 915 | #ifdef EXTRA_INITIALIZE |
a9260219 | 916 | EXTRA_INITIALIZE; |
d8b3a65d RS |
917 | #endif |
918 | ||
f927c5ae JB |
919 | inhibit_window_system = 0; |
920 | ||
4fc0b45b | 921 | /* Handle the -t switch, which specifies filename to use as terminal */ |
956e3c7e RS |
922 | while (1) |
923 | { | |
924 | char *term; | |
925 | if (argmatch (argv, argc, "-t", "--terminal", 4, &term, &skip_args)) | |
926 | { | |
927 | int result; | |
68c45bf0 PE |
928 | emacs_close (0); |
929 | emacs_close (1); | |
930 | result = emacs_open (term, O_RDWR, 0); | |
956e3c7e RS |
931 | if (result < 0) |
932 | { | |
933 | char *errstring = strerror (errno); | |
934 | fprintf (stderr, "emacs: %s: %s\n", term, errstring); | |
935 | exit (1); | |
936 | } | |
937 | dup (0); | |
938 | if (! isatty (0)) | |
939 | { | |
940 | fprintf (stderr, "emacs: %s: not a tty\n", term); | |
941 | exit (1); | |
942 | } | |
943 | fprintf (stderr, "Using %s\n", term); | |
8ba50e1a | 944 | #ifdef HAVE_WINDOW_SYSTEM |
956e3c7e | 945 | inhibit_window_system = 1; /* -t => -nw */ |
f927c5ae | 946 | #endif |
956e3c7e RS |
947 | } |
948 | else | |
949 | break; | |
950 | } | |
951 | ||
df6530f8 | 952 | if (argmatch (argv, argc, "-nw", "--no-windows", 6, NULL, &skip_args)) |
e2925360 | 953 | inhibit_window_system = 1; |
f927c5ae | 954 | |
e2925360 | 955 | /* Handle the -batch switch, which means don't do interactive display. */ |
f927c5ae | 956 | noninteractive = 0; |
df6530f8 | 957 | if (argmatch (argv, argc, "-batch", "--batch", 5, NULL, &skip_args)) |
e2925360 KH |
958 | noninteractive = 1; |
959 | ||
960 | /* Handle the --help option, which gives a usage message.. */ | |
df6530f8 | 961 | if (argmatch (argv, argc, "-help", "--help", 3, NULL, &skip_args)) |
f927c5ae | 962 | { |
73ebcd25 AI |
963 | printf (USAGE1, argv[0]); |
964 | printf (USAGE2); | |
e2925360 | 965 | exit (0); |
f927c5ae JB |
966 | } |
967 | ||
edb85f59 RS |
968 | if (! noninteractive) |
969 | { | |
970 | #ifdef BSD_PGRPS | |
971 | if (initialized) | |
972 | { | |
973 | inherited_pgroup = EMACS_GETPGRP (0); | |
974 | setpgrp (0, getpid ()); | |
975 | } | |
976 | #else | |
977 | #if defined (USG5) && defined (INTERRUPT_INPUT) | |
978 | setpgrp (); | |
979 | #endif | |
980 | #endif | |
981 | } | |
982 | ||
fb8e9847 | 983 | init_signals (); |
fb8e9847 | 984 | |
1efa2983 KH |
985 | /* Don't catch SIGHUP if dumping. */ |
986 | if (1 | |
987 | #ifndef CANNOT_DUMP | |
988 | && initialized | |
989 | #endif | |
990 | ) | |
991 | { | |
57e3d22a | 992 | sigblock (sigmask (SIGHUP)); |
1efa2983 KH |
993 | /* In --batch mode, don't catch SIGHUP if already ignored. |
994 | That makes nohup work. */ | |
995 | if (! noninteractive | |
996 | || signal (SIGHUP, SIG_IGN) != SIG_IGN) | |
997 | signal (SIGHUP, fatal_error_signal); | |
57e3d22a | 998 | sigunblock (sigmask (SIGHUP)); |
1efa2983 KH |
999 | } |
1000 | ||
f927c5ae JB |
1001 | if ( |
1002 | #ifndef CANNOT_DUMP | |
1003 | ! noninteractive || initialized | |
1004 | #else | |
1005 | 1 | |
1006 | #endif | |
1007 | ) | |
1008 | { | |
1efa2983 | 1009 | /* Don't catch these signals in batch mode if dumping. |
f927c5ae JB |
1010 | On some machines, this sets static data that would make |
1011 | signal fail to work right when the dumped Emacs is run. */ | |
f927c5ae JB |
1012 | signal (SIGQUIT, fatal_error_signal); |
1013 | signal (SIGILL, fatal_error_signal); | |
1014 | signal (SIGTRAP, fatal_error_signal); | |
7317d9e8 RS |
1015 | #ifdef SIGUSR1 |
1016 | signal (SIGUSR1, handle_USR1_signal); | |
1017 | #ifdef SIGUSR2 | |
1018 | signal (SIGUSR2, handle_USR2_signal); | |
1019 | #endif | |
1020 | #endif | |
99e372cd RS |
1021 | #ifdef SIGABRT |
1022 | signal (SIGABRT, fatal_error_signal); | |
1023 | #endif | |
1024 | #ifdef SIGHWE | |
1025 | signal (SIGHWE, fatal_error_signal); | |
1026 | #endif | |
1027 | #ifdef SIGPRE | |
1028 | signal (SIGPRE, fatal_error_signal); | |
1029 | #endif | |
1030 | #ifdef SIGORE | |
1031 | signal (SIGORE, fatal_error_signal); | |
1032 | #endif | |
1033 | #ifdef SIGUME | |
1034 | signal (SIGUME, fatal_error_signal); | |
1035 | #endif | |
1036 | #ifdef SIGDLK | |
1037 | signal (SIGDLK, fatal_error_signal); | |
1038 | #endif | |
1039 | #ifdef SIGCPULIM | |
1040 | signal (SIGCPULIM, fatal_error_signal); | |
1041 | #endif | |
a90538cb JB |
1042 | #ifdef SIGIOT |
1043 | /* This is missing on some systems - OS/2, for example. */ | |
f927c5ae | 1044 | signal (SIGIOT, fatal_error_signal); |
a90538cb | 1045 | #endif |
f927c5ae JB |
1046 | #ifdef SIGEMT |
1047 | signal (SIGEMT, fatal_error_signal); | |
1048 | #endif | |
1049 | signal (SIGFPE, fatal_error_signal); | |
00eaaa32 | 1050 | #ifdef SIGBUS |
f927c5ae | 1051 | signal (SIGBUS, fatal_error_signal); |
00eaaa32 | 1052 | #endif |
f927c5ae | 1053 | signal (SIGSEGV, fatal_error_signal); |
00eaaa32 | 1054 | #ifdef SIGSYS |
f927c5ae | 1055 | signal (SIGSYS, fatal_error_signal); |
00eaaa32 | 1056 | #endif |
f927c5ae JB |
1057 | signal (SIGTERM, fatal_error_signal); |
1058 | #ifdef SIGXCPU | |
1059 | signal (SIGXCPU, fatal_error_signal); | |
1060 | #endif | |
1061 | #ifdef SIGXFSZ | |
1062 | signal (SIGXFSZ, fatal_error_signal); | |
1063 | #endif /* SIGXFSZ */ | |
1064 | ||
271c7b7c RS |
1065 | #ifdef SIGDANGER |
1066 | /* This just means available memory is getting low. */ | |
1067 | signal (SIGDANGER, memory_warning_signal); | |
1068 | #endif | |
1069 | ||
f927c5ae | 1070 | #ifdef AIX |
56e034fa RS |
1071 | /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */ |
1072 | signal (SIGXCPU, fatal_error_signal); | |
0aef8561 | 1073 | #ifndef _I386 |
f927c5ae | 1074 | signal (SIGIOINT, fatal_error_signal); |
0aef8561 | 1075 | #endif |
f927c5ae JB |
1076 | signal (SIGGRANT, fatal_error_signal); |
1077 | signal (SIGRETRACT, fatal_error_signal); | |
1078 | signal (SIGSOUND, fatal_error_signal); | |
1079 | signal (SIGMSG, fatal_error_signal); | |
1080 | #endif /* AIX */ | |
1081 | } | |
1082 | ||
1083 | noninteractive1 = noninteractive; | |
1084 | ||
1085 | /* Perform basic initializations (not merely interning symbols) */ | |
1086 | ||
1087 | if (!initialized) | |
1088 | { | |
1089 | init_alloc_once (); | |
1090 | init_obarray (); | |
1091 | init_eval_once (); | |
270ce821 KH |
1092 | init_charset_once (); |
1093 | init_coding_once (); | |
f927c5ae | 1094 | init_syntax_once (); /* Create standard syntax table. */ |
270ce821 | 1095 | init_category_once (); /* Create standard category table. */ |
f927c5ae JB |
1096 | /* Must be done before init_buffer */ |
1097 | init_casetab_once (); | |
1098 | init_buffer_once (); /* Create buffer table and some buffers */ | |
1099 | init_minibuf_once (); /* Create list of minibuffers */ | |
90d920b6 GM |
1100 | /* Must precede init_window_once */ |
1101 | ||
1102 | /* Call syms_of_xfaces before init_window_once because that | |
1103 | function creates Vterminal_frame. Termcap frames now use | |
1104 | faces, and the face implementation uses some symbols as | |
1105 | face names. */ | |
90d920b6 | 1106 | syms_of_xfaces (); |
7a18af49 KR |
1107 | /* Call syms_of_keyboard before init_window_once because |
1108 | keyboard sets up symbols that include some face names that | |
1109 | the X support will want to use. This can happen when | |
1110 | CANNOT_DUMP is defined. */ | |
1111 | syms_of_keyboard (); | |
90d920b6 | 1112 | |
f927c5ae | 1113 | init_window_once (); /* Init the window system */ |
680256a8 | 1114 | init_fileio_once (); /* Must precede any path manipulation. */ |
f927c5ae JB |
1115 | } |
1116 | ||
1117 | init_alloc (); | |
68c45bf0 PE |
1118 | |
1119 | if (do_initial_setlocale) | |
1120 | { | |
1121 | fixup_locale (); | |
ca9c0567 PE |
1122 | Vsystem_messages_locale = Vprevious_system_messages_locale; |
1123 | Vsystem_time_locale = Vprevious_system_time_locale; | |
68c45bf0 PE |
1124 | } |
1125 | ||
f927c5ae JB |
1126 | init_eval (); |
1127 | init_data (); | |
ad067ea6 KH |
1128 | #ifdef CLASH_DETECTION |
1129 | init_filelock ();; | |
1130 | #endif | |
ab5d0358 | 1131 | init_atimer (); |
7074fde6 | 1132 | running_asynch_code = 0; |
0e956009 | 1133 | |
a08a816a RS |
1134 | /* Handle --unibyte and the EMACS_UNIBYTE envvar, |
1135 | but not while dumping. */ | |
1136 | if ( | |
1137 | #ifndef CANNOT_DUMP | |
1138 | ! noninteractive || initialized | |
1139 | #else | |
1140 | 1 | |
1141 | #endif | |
1142 | ) | |
1143 | { | |
1144 | int inhibit_unibyte = 0; | |
1145 | ||
1146 | /* --multibyte overrides EMACS_UNIBYTE. */ | |
1147 | if (argmatch (argv, argc, "-no-unibyte", "--no-unibyte", 4, NULL, &skip_args) | |
1148 | || argmatch (argv, argc, "-multibyte", "--multibyte", 4, NULL, &skip_args)) | |
1149 | inhibit_unibyte = 1; | |
1150 | ||
1151 | /* --unibyte requests that we set up to do everything with single-byte | |
1152 | buffers and strings. We need to handle this before calling | |
1153 | init_lread, init_editfns and other places that generate Lisp strings | |
1154 | from text in the environment. */ | |
c0218e1b DL |
1155 | /* Actually this shouldn't be needed as of 20.4 in a generally |
1156 | unibyte environment. As handa says, environment values | |
1157 | aren't now decoded; also existing buffers are now made | |
1158 | unibyte during startup if .emacs sets unibyte. Tested with | |
1159 | 8-bit data in environment variables and /etc/passwd, setting | |
1160 | unibyte and Latin-1 in .emacs. -- Dave Love */ | |
a08a816a RS |
1161 | if (argmatch (argv, argc, "-unibyte", "--unibyte", 4, NULL, &skip_args) |
1162 | || argmatch (argv, argc, "-no-multibyte", "--no-multibyte", 4, NULL, &skip_args) | |
1163 | || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte)) | |
1164 | { | |
1165 | Lisp_Object old_log_max; | |
1166 | Lisp_Object symbol, tail; | |
1167 | ||
1168 | symbol = intern ("default-enable-multibyte-characters"); | |
1169 | Fset (symbol, Qnil); | |
1170 | ||
6524291c KH |
1171 | if (initialized) |
1172 | { | |
1173 | /* Erase pre-dump messages in *Messages* now so no abort. */ | |
1174 | old_log_max = Vmessage_log_max; | |
1175 | XSETFASTINT (Vmessage_log_max, 0); | |
1176 | message_dolog ("", 0, 1, 0); | |
1177 | Vmessage_log_max = old_log_max; | |
1178 | } | |
a08a816a | 1179 | |
3e75bb9e | 1180 | for (tail = Vbuffer_alist; CONSP (tail); |
7539e11f | 1181 | tail = XCDR (tail)) |
a08a816a RS |
1182 | { |
1183 | Lisp_Object buffer; | |
1184 | ||
7539e11f | 1185 | buffer = Fcdr (XCAR (tail)); |
a08a816a RS |
1186 | /* Verify that all buffers are empty now, as they |
1187 | ought to be. */ | |
1188 | if (BUF_Z (XBUFFER (buffer)) > BUF_BEG (XBUFFER (buffer))) | |
1189 | abort (); | |
1190 | /* It is safe to do this crudely in an empty buffer. */ | |
1191 | XBUFFER (buffer)->enable_multibyte_characters = Qnil; | |
1192 | } | |
1193 | } | |
1194 | } | |
1195 | ||
956e3c7e | 1196 | no_loadup |
b96f9fb7 | 1197 | = argmatch (argv, argc, "-nl", "--no-loadup", 6, NULL, &skip_args); |
956e3c7e RS |
1198 | |
1199 | ||
1200 | #ifdef HAVE_X_WINDOWS | |
1201 | /* Stupid kludge to catch command-line display spec. We can't | |
1202 | handle this argument entirely in window system dependent code | |
1203 | because we don't even know which window system dependent code | |
1204 | to run until we've recognized this argument. */ | |
1205 | { | |
1206 | char *displayname = 0; | |
956e3c7e RS |
1207 | int count_before = skip_args; |
1208 | ||
1209 | /* Skip any number of -d options, but only use the last one. */ | |
1210 | while (1) | |
1211 | { | |
1212 | int count_before_this = skip_args; | |
1213 | ||
1214 | if (argmatch (argv, argc, "-d", "--display", 3, &displayname, &skip_args)) | |
1215 | display_arg = 1; | |
1216 | else if (argmatch (argv, argc, "-display", 0, 3, &displayname, &skip_args)) | |
1217 | display_arg = 1; | |
1218 | else | |
1219 | break; | |
1220 | ||
1221 | count_before = count_before_this; | |
1222 | } | |
1223 | ||
1224 | /* If we have the form --display=NAME, | |
1225 | convert it into -d name. | |
1226 | This requires inserting a new element into argv. */ | |
1227 | if (displayname != 0 && skip_args - count_before == 1) | |
1228 | { | |
1229 | char **new = (char **) xmalloc (sizeof (char *) * (argc + 2)); | |
1230 | int j; | |
1231 | ||
1232 | for (j = 0; j < count_before + 1; j++) | |
1233 | new[j] = argv[j]; | |
1234 | new[count_before + 1] = "-d"; | |
1235 | new[count_before + 2] = displayname; | |
1236 | for (j = count_before + 2; j <argc; j++) | |
1237 | new[j + 1] = argv[j]; | |
1238 | argv = new; | |
1239 | argc++; | |
1240 | } | |
1241 | /* Change --display to -d, when its arg is separate. */ | |
1242 | else if (displayname != 0 && skip_args > count_before | |
1243 | && argv[count_before + 1][1] == '-') | |
1244 | argv[count_before + 1] = "-d"; | |
1245 | ||
1246 | /* Don't actually discard this arg. */ | |
1247 | skip_args = count_before; | |
1248 | } | |
1249 | #endif | |
1250 | ||
1251 | /* argmatch must not be used after here, | |
1252 | except when bulding temacs | |
1253 | because the -d argument has not been skipped in skip_args. */ | |
1254 | ||
29b89fe0 RS |
1255 | #ifdef MSDOS |
1256 | /* Call early 'cause init_environment needs it. */ | |
1257 | init_dosfns (); | |
1258 | /* Set defaults for several environment variables. */ | |
18198bb2 RS |
1259 | if (initialized) |
1260 | init_environment (argc, argv, skip_args); | |
1261 | else | |
d1fc6752 | 1262 | tzset (); |
18198bb2 | 1263 | #endif /* MSDOS */ |
29b89fe0 | 1264 | |
8ba50e1a GV |
1265 | #ifdef WINDOWSNT |
1266 | /* Initialize environment from registry settings. */ | |
a3a58294 | 1267 | init_environment (argv); |
41f339d4 | 1268 | init_ntproc (); /* must precede init_editfns */ |
8ba50e1a GV |
1269 | #endif |
1270 | ||
0e956009 JB |
1271 | /* egetenv is a pretty low-level facility, which may get called in |
1272 | many circumstances; it seems flimsy to put off initializing it | |
1273 | until calling init_callproc. */ | |
1274 | set_process_environment (); | |
93aed04d RS |
1275 | /* AIX crashes are reported in system versions 3.2.3 and 3.2.4 |
1276 | if this is not done. Do it after set_process_environment so that we | |
1277 | don't pollute Vprocess_environment. */ | |
fa09a82d DL |
1278 | /* Setting LANG here will defeat the startup locale processing... */ |
1279 | #ifdef AIX3_2 | |
93aed04d RS |
1280 | putenv ("LANG=C"); |
1281 | #endif | |
0e956009 | 1282 | |
ace40a69 RS |
1283 | init_buffer (); /* Init default directory of main buffer */ |
1284 | ||
7928f0b5 | 1285 | init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */ |
ace40a69 | 1286 | init_cmdargs (argc, argv, skip_args); /* Must precede init_lread. */ |
380e25b8 RS |
1287 | |
1288 | if (initialized) | |
1289 | { | |
1290 | /* Erase any pre-dump messages in the message log, to avoid confusion */ | |
1291 | Lisp_Object old_log_max; | |
1292 | old_log_max = Vmessage_log_max; | |
1293 | XSETFASTINT (Vmessage_log_max, 0); | |
f6fe7bb5 | 1294 | message_dolog ("", 0, 1, 0); |
380e25b8 RS |
1295 | Vmessage_log_max = old_log_max; |
1296 | } | |
1297 | ||
7928f0b5 | 1298 | init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */ |
fb8e9847 | 1299 | init_lread (); |
f927c5ae | 1300 | |
8bb697c0 RS |
1301 | /* Intern the names of all standard functions and variables; |
1302 | define standard keys. */ | |
f927c5ae JB |
1303 | |
1304 | if (!initialized) | |
1305 | { | |
1306 | /* The basic levels of Lisp must come first */ | |
1307 | /* And data must come first of all | |
1308 | for the sake of symbols like error-message */ | |
1309 | syms_of_data (); | |
1310 | syms_of_alloc (); | |
fb8e9847 | 1311 | syms_of_lread (); |
f927c5ae JB |
1312 | syms_of_print (); |
1313 | syms_of_eval (); | |
1314 | syms_of_fns (); | |
f927c5ae | 1315 | syms_of_floatfns (); |
f927c5ae JB |
1316 | |
1317 | syms_of_abbrev (); | |
1318 | syms_of_buffer (); | |
1319 | syms_of_bytecode (); | |
1320 | syms_of_callint (); | |
1321 | syms_of_casefiddle (); | |
1322 | syms_of_casetab (); | |
1323 | syms_of_callproc (); | |
270ce821 KH |
1324 | syms_of_category (); |
1325 | syms_of_ccl (); | |
1326 | syms_of_charset (); | |
f927c5ae JB |
1327 | syms_of_cmds (); |
1328 | #ifndef NO_DIR_LIBRARY | |
1329 | syms_of_dired (); | |
1330 | #endif /* not NO_DIR_LIBRARY */ | |
1331 | syms_of_display (); | |
1332 | syms_of_doc (); | |
1333 | syms_of_editfns (); | |
1334 | syms_of_emacs (); | |
1335 | syms_of_fileio (); | |
270ce821 | 1336 | syms_of_coding (); /* This should be after syms_of_fileio. */ |
f927c5ae JB |
1337 | #ifdef CLASH_DETECTION |
1338 | syms_of_filelock (); | |
1339 | #endif /* CLASH_DETECTION */ | |
1340 | syms_of_indent (); | |
c2c5ed2c | 1341 | syms_of_insdel (); |
f927c5ae JB |
1342 | syms_of_keymap (); |
1343 | syms_of_macros (); | |
1344 | syms_of_marker (); | |
1345 | syms_of_minibuf (); | |
1346 | syms_of_mocklisp (); | |
f927c5ae | 1347 | syms_of_process (); |
f927c5ae | 1348 | syms_of_search (); |
1cbd5d9d | 1349 | syms_of_frame (); |
f927c5ae | 1350 | syms_of_syntax (); |
0d934e7b | 1351 | syms_of_term (); |
f927c5ae | 1352 | syms_of_undo (); |
90d920b6 GM |
1353 | #ifdef HAVE_SOUND |
1354 | syms_of_sound (); | |
1355 | #endif | |
bef79ee4 | 1356 | |
bef79ee4 | 1357 | syms_of_textprop (); |
9d100795 | 1358 | syms_of_composite (); |
f927c5ae JB |
1359 | #ifdef VMS |
1360 | syms_of_vmsproc (); | |
1361 | #endif /* VMS */ | |
05687c54 RS |
1362 | #ifdef WINDOWSNT |
1363 | syms_of_ntproc (); | |
1364 | #endif /* WINDOWSNT */ | |
f927c5ae JB |
1365 | syms_of_window (); |
1366 | syms_of_xdisp (); | |
1367 | #ifdef HAVE_X_WINDOWS | |
72412588 | 1368 | syms_of_xterm (); |
f927c5ae | 1369 | syms_of_xfns (); |
270ce821 | 1370 | syms_of_fontset (); |
72412588 JB |
1371 | #ifdef HAVE_X11 |
1372 | syms_of_xselect (); | |
1373 | #endif | |
f927c5ae JB |
1374 | #endif /* HAVE_X_WINDOWS */ |
1375 | ||
1e9c210b | 1376 | #ifndef HAVE_NTGUI |
6c850f3c | 1377 | syms_of_xmenu (); |
1e9c210b | 1378 | #endif |
6c850f3c | 1379 | |
8ba50e1a | 1380 | #ifdef HAVE_NTGUI |
fbd6baed GV |
1381 | syms_of_w32term (); |
1382 | syms_of_w32fns (); | |
fbd6baed GV |
1383 | syms_of_w32select (); |
1384 | syms_of_w32menu (); | |
02062ac3 | 1385 | syms_of_fontset (); |
8ba50e1a GV |
1386 | #endif /* HAVE_NTGUI */ |
1387 | ||
f927c5ae JB |
1388 | #ifdef SYMS_SYSTEM |
1389 | SYMS_SYSTEM; | |
1390 | #endif | |
1391 | ||
1392 | #ifdef SYMS_MACHINE | |
1393 | SYMS_MACHINE; | |
1394 | #endif | |
1395 | ||
1396 | keys_of_casefiddle (); | |
1397 | keys_of_cmds (); | |
1398 | keys_of_buffer (); | |
1399 | keys_of_keyboard (); | |
1400 | keys_of_keymap (); | |
1401 | keys_of_macros (); | |
1402 | keys_of_minibuf (); | |
1403 | keys_of_window (); | |
5e67fbc2 | 1404 | keys_of_frame (); |
f927c5ae JB |
1405 | } |
1406 | ||
8bb697c0 RS |
1407 | if (!noninteractive) |
1408 | { | |
1409 | #ifdef VMS | |
1410 | init_vms_input ();/* init_display calls get_frame_size, that needs this */ | |
1411 | #endif /* VMS */ | |
1412 | init_display (); /* Determine terminal type. init_sys_modes uses results */ | |
1413 | } | |
1414 | init_keyboard (); /* This too must precede init_sys_modes */ | |
1415 | #ifdef VMS | |
1416 | init_vmsproc (); /* And this too. */ | |
1417 | #endif /* VMS */ | |
1418 | init_sys_modes (); /* Init system terminal modes (RAW or CBREAK, etc.) */ | |
90d920b6 GM |
1419 | #ifdef HAVE_X_WINDOWS |
1420 | init_xfns (); | |
1421 | #endif /* HAVE_X_WINDOWS */ | |
1422 | init_fns (); | |
8bb697c0 RS |
1423 | init_xdisp (); |
1424 | init_macros (); | |
1425 | init_editfns (); | |
8bb697c0 | 1426 | init_floatfns (); |
8bb697c0 RS |
1427 | #ifdef VMS |
1428 | init_vmsfns (); | |
1429 | #endif /* VMS */ | |
1430 | init_process (); | |
90d920b6 GM |
1431 | #ifdef HAVE_SOUND |
1432 | init_sound (); | |
1433 | #endif | |
75816372 | 1434 | init_window (); |
8bb697c0 | 1435 | |
f927c5ae JB |
1436 | if (!initialized) |
1437 | { | |
e2925360 | 1438 | char *file; |
303901fb | 1439 | /* Handle -l loadup, args passed by Makefile. */ |
df6530f8 | 1440 | if (argmatch (argv, argc, "-l", "--load", 3, &file, &skip_args)) |
f927c5ae | 1441 | Vtop_level = Fcons (intern ("load"), |
e2925360 | 1442 | Fcons (build_string (file), Qnil)); |
f927c5ae JB |
1443 | #ifdef CANNOT_DUMP |
1444 | /* Unless next switch is -nl, load "loadup.el" first thing. */ | |
956e3c7e | 1445 | if (! no_loadup) |
f927c5ae JB |
1446 | Vtop_level = Fcons (intern ("load"), |
1447 | Fcons (build_string ("loadup.el"), Qnil)); | |
1448 | #endif /* CANNOT_DUMP */ | |
1449 | } | |
1450 | ||
93572b43 KH |
1451 | if (initialized) |
1452 | { | |
0269dedb RS |
1453 | #ifdef HAVE_TZSET |
1454 | { | |
1455 | /* If the execution TZ happens to be the same as the dump TZ, | |
1456 | change it to some other value and then change it back, | |
1457 | to force the underlying implementation to reload the TZ info. | |
1458 | This is needed on implementations that load TZ info from files, | |
1459 | since the TZ file contents may differ between dump and execution. */ | |
1460 | char *tz = getenv ("TZ"); | |
1461 | if (tz && !strcmp (tz, dump_tz)) | |
1462 | { | |
1463 | ++*tz; | |
1464 | tzset (); | |
1465 | --*tz; | |
1466 | } | |
1467 | } | |
1468 | #endif | |
93572b43 KH |
1469 | } |
1470 | ||
e610ea43 RS |
1471 | /* Gerd Moellmann <gerd@acm.org> says this makes profiling work on |
1472 | FreeBSD. It might work on some other systems too. | |
1473 | Give it a try and tell me if it works on your system. */ | |
6a97197e | 1474 | #if defined (__FreeBSD__) || defined (__linux) |
e610ea43 RS |
1475 | #ifdef PROFILING |
1476 | if (initialized) | |
1477 | { | |
1478 | extern void _mcleanup (); | |
1479 | extern char etext; | |
90d920b6 | 1480 | extern void safe_bcopy (); |
67a5596f GM |
1481 | extern void dump_opcode_frequencies (); |
1482 | ||
e610ea43 | 1483 | atexit (_mcleanup); |
90d920b6 GM |
1484 | /* This uses safe_bcopy because that function comes first in the |
1485 | Emacs executable. It might be better to use something that | |
1486 | gives the start of the text segment, but start_of_text is not | |
1487 | defined on all systems now. */ | |
1488 | monstartup (safe_bcopy, &etext); | |
e610ea43 RS |
1489 | } |
1490 | else | |
1491 | moncontrol (0); | |
1492 | #endif | |
1493 | #endif | |
1494 | ||
f927c5ae JB |
1495 | initialized = 1; |
1496 | ||
e7536cff RS |
1497 | #ifdef LOCALTIME_CACHE |
1498 | /* Some versions of localtime have a bug. They cache the value of the time | |
279cc2b8 JB |
1499 | zone rather than looking it up every time. Since localtime() is |
1500 | called to bolt the undumping time into the undumped emacs, this | |
afe9fae9 RS |
1501 | results in localtime ignoring the TZ environment variable. |
1502 | This flushes the new TZ value into localtime. */ | |
1503 | tzset (); | |
e7536cff | 1504 | #endif /* defined (LOCALTIME_CACHE) */ |
279cc2b8 | 1505 | |
f927c5ae JB |
1506 | /* Enter editor command loop. This never returns. */ |
1507 | Frecursive_edit (); | |
1508 | /* NOTREACHED */ | |
1509 | } | |
1510 | \f | |
081bef73 RS |
1511 | /* Sort the args so we can find the most important ones |
1512 | at the beginning of argv. */ | |
1513 | ||
1514 | /* First, here's a table of all the standard options. */ | |
1515 | ||
1516 | struct standard_args | |
1517 | { | |
1518 | char *name; | |
1519 | char *longname; | |
1520 | int priority; | |
1521 | int nargs; | |
1522 | }; | |
1523 | ||
1524 | struct standard_args standard_args[] = | |
1525 | { | |
05922407 RS |
1526 | { "-version", "--version", 150, 0 }, |
1527 | #ifdef HAVE_SHM | |
1528 | { "-nl", "--no-shared-memory", 140, 0 }, | |
1529 | #endif | |
2725719a | 1530 | #ifdef VMS |
05922407 | 1531 | { "-map", "--map-data", 130, 0 }, |
2725719a | 1532 | #endif |
05922407 RS |
1533 | { "-t", "--terminal", 120, 1 }, |
1534 | { "-nw", "--no-windows", 110, 0 }, | |
1535 | { "-batch", "--batch", 100, 0 }, | |
1536 | { "-help", "--help", 90, 0 }, | |
956e3c7e RS |
1537 | { "-no-unibyte", "--no-unibyte", 83, 0 }, |
1538 | { "-multibyte", "--multibyte", 82, 0 }, | |
1539 | { "-unibyte", "--unibyte", 81, 0 }, | |
1540 | { "-no-multibyte", "--no-multibyte", 80, 0 }, | |
05922407 | 1541 | #ifdef CANNOT_DUMP |
956e3c7e | 1542 | { "-nl", "--no-loadup", 70, 0 }, |
05922407 | 1543 | #endif |
956e3c7e RS |
1544 | /* -d must come last before the options handled in startup.el. */ |
1545 | { "-d", "--display", 60, 1 }, | |
1546 | { "-display", 0, 60, 1 }, | |
05922407 | 1547 | /* Now for the options handled in startup.el. */ |
081bef73 RS |
1548 | { "-q", "--no-init-file", 50, 0 }, |
1549 | { "-no-init-file", 0, 50, 0 }, | |
1550 | { "-no-site-file", "--no-site-file", 40, 0 }, | |
1551 | { "-u", "--user", 30, 1 }, | |
1552 | { "-user", 0, 30, 1 }, | |
1553 | { "-debug-init", "--debug-init", 20, 0 }, | |
adab4483 KH |
1554 | { "-i", "--icon-type", 15, 0 }, |
1555 | { "-itype", 0, 15, 0 }, | |
f2bc3538 | 1556 | { "-iconic", "--iconic", 15, 0 }, |
081bef73 RS |
1557 | { "-bg", "--background-color", 10, 1 }, |
1558 | { "-background", 0, 10, 1 }, | |
1559 | { "-fg", "--foreground-color", 10, 1 }, | |
1560 | { "-foreground", 0, 10, 1 }, | |
1561 | { "-bd", "--border-color", 10, 1 }, | |
1562 | { "-bw", "--border-width", 10, 1 }, | |
1563 | { "-ib", "--internal-border", 10, 1 }, | |
1564 | { "-ms", "--mouse-color", 10, 1 }, | |
1565 | { "-cr", "--cursor-color", 10, 1 }, | |
1566 | { "-fn", "--font", 10, 1 }, | |
1567 | { "-font", 0, 10, 1 }, | |
1568 | { "-g", "--geometry", 10, 1 }, | |
1569 | { "-geometry", 0, 10, 1 }, | |
1570 | { "-T", "--title", 10, 1 }, | |
ae63ae52 | 1571 | { "-title", 0, 10, 1 }, |
081bef73 RS |
1572 | { "-name", "--name", 10, 1 }, |
1573 | { "-xrm", "--xrm", 10, 1 }, | |
fcdeb5d9 RS |
1574 | { "-r", "--reverse-video", 5, 0 }, |
1575 | { "-rv", 0, 5, 0 }, | |
1576 | { "-reverse", 0, 5, 0 }, | |
ae63ae52 | 1577 | { "-hb", "--horizontal-scroll-bars", 5, 0 }, |
fcdeb5d9 | 1578 | { "-vb", "--vertical-scroll-bars", 5, 0 }, |
fcdeb5d9 RS |
1579 | /* These have the same priority as ordinary file name args, |
1580 | so they are not reordered with respect to those. */ | |
4af9e0b3 RS |
1581 | { "-L", "--directory", 0, 1 }, |
1582 | { "-directory", 0, 0, 1 }, | |
fcdeb5d9 RS |
1583 | { "-l", "--load", 0, 1 }, |
1584 | { "-load", 0, 0, 1 }, | |
1585 | { "-f", "--funcall", 0, 1 }, | |
1586 | { "-funcall", 0, 0, 1 }, | |
575985b1 | 1587 | { "-eval", "--eval", 0, 1 }, |
67a5596f | 1588 | { "-execute", "--execute", 0, 1 }, |
2e13f8e9 RS |
1589 | { "-find-file", "--find-file", 0, 1 }, |
1590 | { "-visit", "--visit", 0, 1 }, | |
67a5596f | 1591 | { "-file", "--file", 0, 1 }, |
fcdeb5d9 | 1592 | { "-insert", "--insert", 0, 1 }, |
f2bc3538 | 1593 | /* This should be processed after ordinary file name args and the like. */ |
fcdeb5d9 | 1594 | { "-kill", "--kill", -10, 0 }, |
081bef73 RS |
1595 | }; |
1596 | ||
1597 | /* Reorder the elements of ARGV (assumed to have ARGC elements) | |
1598 | so that the highest priority ones come first. | |
1599 | Do not change the order of elements of equal priority. | |
956e3c7e RS |
1600 | If an option takes an argument, keep it and its argument together. |
1601 | ||
1602 | If an option that takes no argument appears more | |
1603 | than once, eliminate all but one copy of it. */ | |
081bef73 RS |
1604 | |
1605 | static void | |
1606 | sort_args (argc, argv) | |
1607 | int argc; | |
1608 | char **argv; | |
1609 | { | |
1610 | char **new = (char **) xmalloc (sizeof (char *) * argc); | |
1611 | /* For each element of argv, | |
1612 | the corresponding element of options is: | |
1613 | 0 for an option that takes no arguments, | |
1614 | 1 for an option that takes one argument, etc. | |
1615 | -1 for an ordinary non-option argument. */ | |
6dad9359 | 1616 | int *options = (int *) xmalloc (sizeof (int) * argc); |
081bef73 RS |
1617 | int *priority = (int *) xmalloc (sizeof (int) * argc); |
1618 | int to = 1; | |
956e3c7e | 1619 | int incoming_used = 1; |
081bef73 RS |
1620 | int from; |
1621 | int i; | |
1622 | ||
1623 | /* Categorize all the options, | |
1624 | and figure out which argv elts are option arguments. */ | |
1625 | for (from = 1; from < argc; from++) | |
1626 | { | |
1627 | options[from] = -1; | |
fcdeb5d9 | 1628 | priority[from] = 0; |
081bef73 RS |
1629 | if (argv[from][0] == '-') |
1630 | { | |
1631 | int match, thislen; | |
1632 | char *equals; | |
1633 | ||
c96f26f4 RS |
1634 | /* If we have found "--", don't consider |
1635 | any more arguments as options. */ | |
249443b6 | 1636 | if (argv[from][1] == '-' && argv[from][2] == 0) |
c96f26f4 RS |
1637 | { |
1638 | /* Leave the "--", and everything following it, at the end. */ | |
1639 | for (; from < argc; from++) | |
1640 | { | |
1641 | priority[from] = -100; | |
1642 | options[from] = -1; | |
1643 | } | |
1644 | break; | |
1645 | } | |
1646 | ||
081bef73 RS |
1647 | /* Look for a match with a known old-fashioned option. */ |
1648 | for (i = 0; i < sizeof (standard_args) / sizeof (standard_args[0]); i++) | |
1649 | if (!strcmp (argv[from], standard_args[i].name)) | |
1650 | { | |
1651 | options[from] = standard_args[i].nargs; | |
1652 | priority[from] = standard_args[i].priority; | |
fd76ec52 RS |
1653 | if (from + standard_args[i].nargs >= argc) |
1654 | fatal ("Option `%s' requires an argument\n", argv[from]); | |
081bef73 RS |
1655 | from += standard_args[i].nargs; |
1656 | goto done; | |
1657 | } | |
1658 | ||
1659 | /* Look for a match with a known long option. | |
1660 | MATCH is -1 if no match so far, -2 if two or more matches so far, | |
1661 | >= 0 (the table index of the match) if just one match so far. */ | |
1662 | if (argv[from][1] == '-') | |
1663 | { | |
1664 | match = -1; | |
1665 | thislen = strlen (argv[from]); | |
1666 | equals = index (argv[from], '='); | |
1667 | if (equals != 0) | |
1668 | thislen = equals - argv[from]; | |
1669 | ||
f609ef57 KH |
1670 | for (i = 0; |
1671 | i < sizeof (standard_args) / sizeof (standard_args[0]); i++) | |
1672 | if (standard_args[i].longname | |
1673 | && !strncmp (argv[from], standard_args[i].longname, | |
1674 | thislen)) | |
081bef73 RS |
1675 | { |
1676 | if (match == -1) | |
1677 | match = i; | |
1678 | else | |
1679 | match = -2; | |
1680 | } | |
1681 | ||
1682 | /* If we found exactly one match, use that. */ | |
1683 | if (match >= 0) | |
1684 | { | |
1685 | options[from] = standard_args[match].nargs; | |
1686 | priority[from] = standard_args[match].priority; | |
1687 | /* If --OPTION=VALUE syntax is used, | |
1688 | this option uses just one argv element. */ | |
1689 | if (equals != 0) | |
1690 | options[from] = 0; | |
fd76ec52 RS |
1691 | if (from + options[from] >= argc) |
1692 | fatal ("Option `%s' requires an argument\n", argv[from]); | |
081bef73 RS |
1693 | from += options[from]; |
1694 | } | |
1695 | } | |
1696 | done: ; | |
1697 | } | |
1698 | } | |
1699 | ||
1700 | /* Copy the arguments, in order of decreasing priority, to NEW. */ | |
1701 | new[0] = argv[0]; | |
956e3c7e | 1702 | while (incoming_used < argc) |
081bef73 RS |
1703 | { |
1704 | int best = -1; | |
2c70c992 | 1705 | int best_priority = -9999; |
081bef73 RS |
1706 | |
1707 | /* Find the highest priority remaining option. | |
1708 | If several have equal priority, take the first of them. */ | |
1709 | for (from = 1; from < argc; from++) | |
1710 | { | |
1711 | if (argv[from] != 0 && priority[from] > best_priority) | |
1712 | { | |
1713 | best_priority = priority[from]; | |
1714 | best = from; | |
1715 | } | |
1716 | /* Skip option arguments--they are tied to the options. */ | |
1717 | if (options[from] > 0) | |
1718 | from += options[from]; | |
1719 | } | |
1720 | ||
1721 | if (best < 0) | |
1722 | abort (); | |
1723 | ||
956e3c7e RS |
1724 | /* Copy the highest priority remaining option, with its args, to NEW. |
1725 | Unless it is a duplicate of the previous one. */ | |
1726 | if (! (options[best] == 0 | |
1727 | && ! strcmp (new[to - 1], argv[best]))) | |
1728 | { | |
1729 | new[to++] = argv[best]; | |
1730 | for (i = 0; i < options[best]; i++) | |
1731 | new[to++] = argv[best + i + 1]; | |
1732 | } | |
1733 | ||
1734 | incoming_used += 1 + (options[best] > 0 ? options[best] : 0); | |
081bef73 RS |
1735 | |
1736 | /* Clear out this option in ARGV. */ | |
1737 | argv[best] = 0; | |
1738 | for (i = 0; i < options[best]; i++) | |
1739 | argv[best + i + 1] = 0; | |
1740 | } | |
1741 | ||
81b7af72 RS |
1742 | /* If duplicate options were deleted, fill up extra space with null ptrs. */ |
1743 | while (to < argc) | |
1744 | new[to++] = 0; | |
1745 | ||
6dad9359 | 1746 | bcopy (new, argv, sizeof (char *) * argc); |
0bf591da RS |
1747 | |
1748 | free (options); | |
1749 | free (new); | |
1750 | free (priority); | |
081bef73 RS |
1751 | } |
1752 | \f | |
f927c5ae | 1753 | DEFUN ("kill-emacs", Fkill_emacs, Skill_emacs, 0, 1, "P", |
edc8ae07 | 1754 | "Exit the Emacs job and kill it.\n\ |
f927c5ae JB |
1755 | If ARG is an integer, return ARG as the exit program code.\n\ |
1756 | If ARG is a string, stuff it as keyboard input.\n\n\ | |
1757 | The value of `kill-emacs-hook', if not void,\n\ | |
1758 | is a list of functions (of no args),\n\ | |
1759 | all of which are called before Emacs is actually killed.") | |
1760 | (arg) | |
1761 | Lisp_Object arg; | |
1762 | { | |
f927c5ae JB |
1763 | struct gcpro gcpro1; |
1764 | ||
1765 | GCPRO1 (arg); | |
1766 | ||
1767 | if (feof (stdin)) | |
1768 | arg = Qt; | |
1769 | ||
2447c626 | 1770 | if (!NILP (Vrun_hooks) && !noninteractive) |
f927c5ae JB |
1771 | call1 (Vrun_hooks, intern ("kill-emacs-hook")); |
1772 | ||
f927c5ae JB |
1773 | UNGCPRO; |
1774 | ||
1775 | /* Is it really necessary to do this deassign | |
1776 | when we are going to exit anyway? */ | |
1777 | /* #ifdef VMS | |
1778 | stop_vms_input (); | |
1779 | #endif */ | |
40be253a | 1780 | |
d0068e25 | 1781 | shut_down_emacs (0, 0, STRINGP (arg) ? arg : Qnil); |
40be253a | 1782 | |
58545838 KH |
1783 | /* If we have an auto-save list file, |
1784 | kill it because we are exiting Emacs deliberately (not crashing). | |
1785 | Do it after shut_down_emacs, which does an auto-save. */ | |
1786 | if (STRINGP (Vauto_save_list_file_name)) | |
1787 | unlink (XSTRING (Vauto_save_list_file_name)->data); | |
1788 | ||
55ccc0b3 | 1789 | exit (INTEGERP (arg) ? XINT (arg) |
f927c5ae JB |
1790 | #ifdef VMS |
1791 | : 1 | |
1792 | #else | |
1793 | : 0 | |
1794 | #endif | |
1795 | ); | |
1796 | /* NOTREACHED */ | |
1797 | } | |
40be253a JB |
1798 | |
1799 | ||
1800 | /* Perform an orderly shutdown of Emacs. Autosave any modified | |
1801 | buffers, kill any child processes, clean up the terminal modes (if | |
1802 | we're in the foreground), and other stuff like that. Don't perform | |
1803 | any redisplay; this may be called when Emacs is shutting down in | |
1804 | the background, or after its X connection has died. | |
1805 | ||
1806 | If SIG is a signal number, print a message for it. | |
1807 | ||
1808 | This is called by fatal signal handlers, X protocol error handlers, | |
1809 | and Fkill_emacs. */ | |
f7ab4e3d | 1810 | |
40be253a | 1811 | void |
f7ab4e3d | 1812 | shut_down_emacs (sig, no_x, stuff) |
41423a80 | 1813 | int sig, no_x; |
f7ab4e3d | 1814 | Lisp_Object stuff; |
40be253a | 1815 | { |
829d872b RS |
1816 | /* Prevent running of hooks from now on. */ |
1817 | Vrun_hooks = Qnil; | |
1818 | ||
40be253a JB |
1819 | /* If we are controlling the terminal, reset terminal modes */ |
1820 | #ifdef EMACS_HAVE_TTY_PGRP | |
1821 | { | |
d04d81d2 RS |
1822 | int pgrp = EMACS_GETPGRP (0); |
1823 | ||
40be253a JB |
1824 | int tpgrp; |
1825 | if (EMACS_GET_TTY_PGRP (0, &tpgrp) != -1 | |
5a570e37 | 1826 | && tpgrp == pgrp) |
40be253a JB |
1827 | { |
1828 | fflush (stdout); | |
1829 | reset_sys_modes (); | |
1830 | if (sig && sig != SIGTERM) | |
1831 | fprintf (stderr, "Fatal error (%d).", sig); | |
1832 | } | |
1833 | } | |
1834 | #else | |
1835 | fflush (stdout); | |
1836 | reset_sys_modes (); | |
1837 | #endif | |
1838 | ||
f7ab4e3d RS |
1839 | stuff_buffered_input (stuff); |
1840 | ||
40be253a JB |
1841 | kill_buffer_processes (Qnil); |
1842 | Fdo_auto_save (Qt, Qnil); | |
1843 | ||
1844 | #ifdef CLASH_DETECTION | |
1845 | unlock_all_files (); | |
1846 | #endif | |
1847 | ||
1848 | #ifdef VMS | |
1849 | kill_vms_processes (); | |
1850 | #endif | |
1851 | ||
5e7f8733 | 1852 | #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */ |
41423a80 | 1853 | #ifdef HAVE_X_WINDOWS |
f7511647 RS |
1854 | /* It's not safe to call intern here. Maybe we are crashing. */ |
1855 | if (!noninteractive && SYMBOLP (Vwindow_system) | |
1856 | && XSYMBOL (Vwindow_system)->name->size == 1 | |
1857 | && XSYMBOL (Vwindow_system)->name->data[0] == 'x' | |
1858 | && ! no_x) | |
41423a80 RS |
1859 | Fx_close_current_connection (); |
1860 | #endif /* HAVE_X_WINDOWS */ | |
5e7f8733 | 1861 | #endif |
41423a80 | 1862 | |
40be253a JB |
1863 | #ifdef SIGIO |
1864 | /* There is a tendency for a SIGIO signal to arrive within exit, | |
1865 | and cause a SIGHUP because the input descriptor is already closed. */ | |
1866 | unrequest_sigio (); | |
1867 | signal (SIGIO, SIG_IGN); | |
1868 | #endif | |
41f339d4 RS |
1869 | |
1870 | #ifdef WINDOWSNT | |
1871 | term_ntproc (); | |
1872 | #endif | |
d546e578 | 1873 | |
90d920b6 | 1874 | check_glyph_memory (); |
189437a7 | 1875 | check_message_stack (); |
90d920b6 | 1876 | |
d546e578 EZ |
1877 | #ifdef MSDOS |
1878 | dos_cleanup (); | |
1879 | #endif | |
40be253a JB |
1880 | } |
1881 | ||
1882 | ||
f927c5ae JB |
1883 | \f |
1884 | #ifndef CANNOT_DUMP | |
f927c5ae JB |
1885 | |
1886 | #ifdef HAVE_SHM | |
1887 | ||
1888 | DEFUN ("dump-emacs-data", Fdump_emacs_data, Sdump_emacs_data, 1, 1, 0, | |
1889 | "Dump current state of Emacs into data file FILENAME.\n\ | |
1890 | This function exists on systems that use HAVE_SHM.") | |
c9aae259 EN |
1891 | (filename) |
1892 | Lisp_Object filename; | |
f927c5ae | 1893 | { |
55697f5b | 1894 | extern char my_edata[]; |
f927c5ae | 1895 | Lisp_Object tem; |
f927c5ae | 1896 | |
c9aae259 EN |
1897 | CHECK_STRING (filename, 0); |
1898 | filename = Fexpand_file_name (filename, Qnil); | |
f927c5ae JB |
1899 | |
1900 | tem = Vpurify_flag; | |
1901 | Vpurify_flag = Qnil; | |
1902 | ||
1903 | fflush (stdout); | |
1904 | /* Tell malloc where start of impure now is */ | |
1905 | /* Also arrange for warnings when nearly out of space. */ | |
1906 | #ifndef SYSTEM_MALLOC | |
1090a161 | 1907 | memory_warnings (my_edata, malloc_warning); |
f927c5ae | 1908 | #endif |
c9aae259 | 1909 | map_out_data (XSTRING (filename)->data); |
f927c5ae JB |
1910 | |
1911 | Vpurify_flag = tem; | |
1912 | ||
1913 | return Qnil; | |
1914 | } | |
1915 | ||
1916 | #else /* not HAVE_SHM */ | |
1917 | ||
1918 | DEFUN ("dump-emacs", Fdump_emacs, Sdump_emacs, 2, 2, 0, | |
1919 | "Dump current state of Emacs into executable file FILENAME.\n\ | |
1920 | Take symbols from SYMFILE (presumably the file you executed to run Emacs).\n\ | |
1921 | This is used in the file `loadup.el' when building Emacs.\n\ | |
1922 | \n\ | |
87a98b1a | 1923 | You must run Emacs in batch mode in order to dump it.") |
c9aae259 EN |
1924 | (filename, symfile) |
1925 | Lisp_Object filename, symfile; | |
f927c5ae | 1926 | { |
55697f5b | 1927 | extern char my_edata[]; |
f927c5ae | 1928 | Lisp_Object tem; |
1b7ddf4f RS |
1929 | Lisp_Object symbol; |
1930 | int count = specpdl_ptr - specpdl; | |
f927c5ae | 1931 | |
87a98b1a RS |
1932 | if (! noninteractive) |
1933 | error ("Dumping Emacs works only in batch mode"); | |
1934 | ||
1b7ddf4f RS |
1935 | /* Bind `command-line-processed' to nil before dumping, |
1936 | so that the dumped Emacs will process its command line | |
1937 | and set up to work with X windows if appropriate. */ | |
1938 | symbol = intern ("command-line-process"); | |
1939 | specbind (symbol, Qnil); | |
1940 | ||
c9aae259 EN |
1941 | CHECK_STRING (filename, 0); |
1942 | filename = Fexpand_file_name (filename, Qnil); | |
1943 | if (!NILP (symfile)) | |
f927c5ae | 1944 | { |
c9aae259 EN |
1945 | CHECK_STRING (symfile, 0); |
1946 | if (XSTRING (symfile)->size) | |
1947 | symfile = Fexpand_file_name (symfile, Qnil); | |
f927c5ae JB |
1948 | } |
1949 | ||
1950 | tem = Vpurify_flag; | |
1951 | Vpurify_flag = Qnil; | |
1952 | ||
0269dedb RS |
1953 | #ifdef HAVE_TZSET |
1954 | set_time_zone_rule (dump_tz); | |
1955 | #ifndef LOCALTIME_CACHE | |
1956 | /* Force a tz reload, since set_time_zone_rule doesn't. */ | |
1957 | tzset (); | |
1958 | #endif | |
1959 | #endif | |
1960 | ||
f927c5ae JB |
1961 | fflush (stdout); |
1962 | #ifdef VMS | |
c9aae259 | 1963 | mapout_data (XSTRING (filename)->data); |
f927c5ae JB |
1964 | #else |
1965 | /* Tell malloc where start of impure now is */ | |
1966 | /* Also arrange for warnings when nearly out of space. */ | |
1967 | #ifndef SYSTEM_MALLOC | |
cc5f52cb RS |
1968 | #ifndef WINDOWSNT |
1969 | /* On Windows, this was done before dumping, and that once suffices. | |
1970 | Meanwhile, my_edata is not valid on Windows. */ | |
cb37cf78 | 1971 | memory_warnings (my_edata, malloc_warning); |
cc5f52cb | 1972 | #endif /* not WINDOWSNT */ |
15aaf1b5 RS |
1973 | #endif |
1974 | #ifdef DOUG_LEA_MALLOC | |
1975 | malloc_state_ptr = malloc_get_state (); | |
f927c5ae | 1976 | #endif |
2b7377ca | 1977 | |
a74c5ec1 | 1978 | #ifdef USE_MMAP_FOR_BUFFERS |
2b7377ca GM |
1979 | mmap_set_vars (0); |
1980 | #endif | |
c9aae259 EN |
1981 | unexec (XSTRING (filename)->data, |
1982 | !NILP (symfile) ? XSTRING (symfile)->data : 0, my_edata, 0, 0); | |
a74c5ec1 | 1983 | #ifdef USE_MMAP_FOR_BUFFERS |
2b7377ca GM |
1984 | mmap_set_vars (1); |
1985 | #endif | |
15aaf1b5 RS |
1986 | #ifdef DOUG_LEA_MALLOC |
1987 | free (malloc_state_ptr); | |
1988 | #endif | |
f927c5ae JB |
1989 | #endif /* not VMS */ |
1990 | ||
1991 | Vpurify_flag = tem; | |
1992 | ||
1b7ddf4f | 1993 | return unbind_to (count, Qnil); |
f927c5ae JB |
1994 | } |
1995 | ||
1996 | #endif /* not HAVE_SHM */ | |
1997 | ||
1998 | #endif /* not CANNOT_DUMP */ | |
1999 | \f | |
68c45bf0 PE |
2000 | #if HAVE_SETLOCALE |
2001 | /* Recover from setlocale (LC_ALL, ""). */ | |
2002 | void | |
2003 | fixup_locale () | |
2004 | { | |
68c45bf0 PE |
2005 | /* The Emacs Lisp reader needs LC_NUMERIC to be "C", |
2006 | so that numbers are read and printed properly for Emacs Lisp. */ | |
2007 | setlocale (LC_NUMERIC, "C"); | |
68c45bf0 PE |
2008 | } |
2009 | ||
0c8559bb PE |
2010 | /* Set system locale CATEGORY, with previous locale *PLOCALE, to |
2011 | DESIRED_LOCALE. */ | |
68c45bf0 PE |
2012 | static void |
2013 | synchronize_locale (category, plocale, desired_locale) | |
2014 | int category; | |
2015 | Lisp_Object *plocale; | |
2016 | Lisp_Object desired_locale; | |
2017 | { | |
0c8559bb PE |
2018 | if (! EQ (*plocale, desired_locale)) |
2019 | { | |
2020 | *plocale = desired_locale; | |
2021 | setlocale (category, (STRINGP (desired_locale) | |
59c65f1e | 2022 | ? (char *)(XSTRING (desired_locale)->data) |
0c8559bb PE |
2023 | : "")); |
2024 | } | |
68c45bf0 PE |
2025 | } |
2026 | ||
ca9c0567 | 2027 | /* Set system time locale to match Vsystem_time_locale, if possible. */ |
68c45bf0 | 2028 | void |
ca9c0567 | 2029 | synchronize_system_time_locale () |
68c45bf0 | 2030 | { |
ca9c0567 PE |
2031 | synchronize_locale (LC_TIME, &Vprevious_system_time_locale, |
2032 | Vsystem_time_locale); | |
68c45bf0 PE |
2033 | } |
2034 | ||
ca9c0567 PE |
2035 | /* Set system messages locale to match Vsystem_messages_locale, if |
2036 | possible. */ | |
68c45bf0 | 2037 | void |
ca9c0567 | 2038 | synchronize_system_messages_locale () |
68c45bf0 PE |
2039 | { |
2040 | #ifdef LC_MESSAGES | |
ca9c0567 PE |
2041 | synchronize_locale (LC_MESSAGES, &Vprevious_system_messages_locale, |
2042 | Vsystem_messages_locale); | |
68c45bf0 PE |
2043 | #endif |
2044 | } | |
2045 | #endif /* HAVE_SETLOCALE */ | |
2046 | \f | |
4b163808 | 2047 | #ifndef SEPCHAR |
f927c5ae JB |
2048 | #define SEPCHAR ':' |
2049 | #endif | |
2050 | ||
2051 | Lisp_Object | |
2052 | decode_env_path (evarname, defalt) | |
2053 | char *evarname, *defalt; | |
2054 | { | |
2055 | register char *path, *p; | |
213d0b1f | 2056 | Lisp_Object lpath, element, tem; |
f927c5ae | 2057 | |
2447c626 JB |
2058 | /* It's okay to use getenv here, because this function is only used |
2059 | to initialize variables when Emacs starts up, and isn't called | |
2060 | after that. */ | |
e065a56e JB |
2061 | if (evarname != 0) |
2062 | path = (char *) getenv (evarname); | |
2063 | else | |
2064 | path = 0; | |
f927c5ae JB |
2065 | if (!path) |
2066 | path = defalt; | |
6a30e6d6 RS |
2067 | #ifdef DOS_NT |
2068 | /* Ensure values from the environment use the proper directory separator. */ | |
2069 | if (path) | |
2070 | { | |
2071 | p = alloca (strlen (path) + 1); | |
2072 | strcpy (p, path); | |
2073 | path = p; | |
2074 | ||
2075 | if ('/' == DIRECTORY_SEP) | |
2076 | dostounix_filename (path); | |
2077 | else | |
2078 | unixtodos_filename (path); | |
2079 | } | |
2080 | #endif | |
f927c5ae JB |
2081 | lpath = Qnil; |
2082 | while (1) | |
2083 | { | |
2084 | p = index (path, SEPCHAR); | |
2085 | if (!p) p = path + strlen (path); | |
213d0b1f RS |
2086 | element = (p - path ? make_string (path, p - path) |
2087 | : build_string (".")); | |
2088 | ||
2089 | /* Add /: to the front of the name | |
2090 | if it would otherwise be treated as magic. */ | |
2091 | tem = Ffind_file_name_handler (element, Qt); | |
2092 | if (! NILP (tem)) | |
2093 | element = concat2 (build_string ("/:"), element); | |
2094 | ||
2095 | lpath = Fcons (element, lpath); | |
f927c5ae JB |
2096 | if (*p) |
2097 | path = p + 1; | |
2098 | else | |
2099 | break; | |
2100 | } | |
2101 | return Fnreverse (lpath); | |
2102 | } | |
2103 | ||
dfcf069d | 2104 | void |
f927c5ae JB |
2105 | syms_of_emacs () |
2106 | { | |
213d0b1f RS |
2107 | Qfile_name_handler_alist = intern ("file-name-handler-alist"); |
2108 | staticpro (&Qfile_name_handler_alist); | |
2109 | ||
83591e66 | 2110 | #ifndef CANNOT_DUMP |
f927c5ae JB |
2111 | #ifdef HAVE_SHM |
2112 | defsubr (&Sdump_emacs_data); | |
2113 | #else | |
2114 | defsubr (&Sdump_emacs); | |
83591e66 | 2115 | #endif |
f927c5ae JB |
2116 | #endif |
2117 | ||
2118 | defsubr (&Skill_emacs); | |
2119 | ||
59653951 | 2120 | defsubr (&Sinvocation_name); |
ace40a69 | 2121 | defsubr (&Sinvocation_directory); |
59653951 | 2122 | |
f927c5ae JB |
2123 | DEFVAR_LISP ("command-line-args", &Vcommand_line_args, |
2124 | "Args passed by shell to Emacs, as a list of strings."); | |
2125 | ||
2126 | DEFVAR_LISP ("system-type", &Vsystem_type, | |
2127 | "Value is symbol indicating type of operating system you are using."); | |
2128 | Vsystem_type = intern (SYSTEM_TYPE); | |
2129 | ||
271c7b7c RS |
2130 | DEFVAR_LISP ("system-configuration", &Vsystem_configuration, |
2131 | "Value is string indicating configuration Emacs was built for."); | |
f7511647 | 2132 | Vsystem_configuration = build_string (EMACS_CONFIGURATION); |
271c7b7c | 2133 | |
f0fc0b1a KH |
2134 | DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options, |
2135 | "String containing the configuration options Emacs was built with."); | |
2136 | Vsystem_configuration_options = build_string (EMACS_CONFIG_OPTIONS); | |
2137 | ||
f927c5ae JB |
2138 | DEFVAR_BOOL ("noninteractive", &noninteractive1, |
2139 | "Non-nil means Emacs is running without interactive terminal."); | |
e5d77022 | 2140 | |
e5d77022 | 2141 | DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook, |
edc8ae07 JB |
2142 | "Hook to be run whenever kill-emacs is called.\n\ |
2143 | Since kill-emacs may be invoked when the terminal is disconnected (or\n\ | |
2144 | in other similar situations), functions placed on this hook should not\n\ | |
9f232a5d RS |
2145 | expect to be able to interact with the user. To ask for confirmation,\n\ |
2146 | see `kill-emacs-query-functions' instead."); | |
edc8ae07 | 2147 | Vkill_emacs_hook = Qnil; |
3005da00 | 2148 | |
7317d9e8 RS |
2149 | #ifdef SIGUSR1 |
2150 | DEFVAR_LISP ("signal-USR1-hook", &Vsignal_USR1_hook, | |
3e75bb9e | 2151 | "Hook to be run whenever emacs receives a USR1 signal"); |
7317d9e8 RS |
2152 | Vsignal_USR1_hook = Qnil; |
2153 | #ifdef SIGUSR2 | |
2154 | DEFVAR_LISP ("signal-USR2-hook", &Vsignal_USR2_hook, | |
3e75bb9e | 2155 | "Hook to be run whenever emacs receives a USR2 signal"); |
7317d9e8 RS |
2156 | Vsignal_USR2_hook = Qnil; |
2157 | #endif | |
2158 | #endif | |
2159 | ||
2160 | ||
3005da00 RS |
2161 | DEFVAR_INT ("emacs-priority", &emacs_priority, |
2162 | "Priority for Emacs to run at.\n\ | |
2163 | This value is effective only if set before Emacs is dumped,\n\ | |
2164 | and only if the Emacs executable is installed with setuid to permit\n\ | |
621ecf99 | 2165 | it to change priority. (Emacs sets its uid back to the real uid.)\n\ |
a422068f | 2166 | Currently, you need to define SET_EMACS_PRIORITY in `config.h'\n\ |
e7a9e1c3 RS |
2167 | before you compile Emacs, to enable the code for this feature."); |
2168 | emacs_priority = 0; | |
074a066b GV |
2169 | |
2170 | DEFVAR_LISP ("path-separator", &Vpath_separator, | |
2171 | "The directory separator in search paths, as a string."); | |
2172 | { | |
2173 | char c = SEPCHAR; | |
2174 | Vpath_separator = make_string (&c, 1); | |
2175 | } | |
59653951 | 2176 | |
f67de86f RS |
2177 | DEFVAR_LISP ("invocation-name", &Vinvocation_name, |
2178 | "The program name that was used to run Emacs.\n\ | |
2179 | Any directory names are omitted."); | |
2180 | ||
2181 | DEFVAR_LISP ("invocation-directory", &Vinvocation_directory, | |
2182 | "The directory in which the Emacs executable was found, to run it.\n\ | |
2183 | The value is nil if that directory's name is not known."); | |
2184 | ||
2185 | DEFVAR_LISP ("installation-directory", &Vinstallation_directory, | |
2186 | "A directory within which to look for the `lib-src' and `etc' directories.\n\ | |
2187 | This is non-nil when we can't find those directories in their standard\n\ | |
2188 | installed locations, but we can find them\n\ | |
2189 | near where the Emacs executable was found."); | |
07f4d123 | 2190 | Vinstallation_directory = Qnil; |
68c45bf0 | 2191 | |
ca9c0567 | 2192 | DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale, |
68c45bf0 | 2193 | "System locale for messages."); |
ca9c0567 | 2194 | Vsystem_messages_locale = Qnil; |
68c45bf0 | 2195 | |
ca9c0567 PE |
2196 | DEFVAR_LISP ("previous-system-messages-locale", |
2197 | &Vprevious_system_messages_locale, | |
68c45bf0 | 2198 | "Most recently used system locale for messages."); |
ca9c0567 | 2199 | Vprevious_system_messages_locale = Qnil; |
68c45bf0 | 2200 | |
ca9c0567 | 2201 | DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale, |
68c45bf0 | 2202 | "System locale for time."); |
ca9c0567 | 2203 | Vsystem_time_locale = Qnil; |
68c45bf0 | 2204 | |
ca9c0567 | 2205 | DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale, |
68c45bf0 | 2206 | "Most recently used system locale for time."); |
ca9c0567 | 2207 | Vprevious_system_time_locale = Qnil; |
f927c5ae | 2208 | } |