Commit | Line | Data |
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f927c5ae | 1 | /* Fully extensible Emacs, running on Unix, intended for GNU. |
0b5538bd | 2 | Copyright (C) 1985, 1986, 1987, 1993, 1994, 1995, 1997, 1998, 1999, |
dcc9b98d | 3 | 2001, 2002, 2003, 2004, 2005, 2006 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 | |
4fc5845f LK |
19 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
20 | Boston, MA 02110-1301, 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 | ||
edd3ff1d JR |
43 | #ifdef WINDOWSNT |
44 | #include <fcntl.h> | |
52c7f9ee JR |
45 | #include <windows.h> /* just for w32.h */ |
46 | #include "w32.h" | |
c68a2829 | 47 | #include "w32heap.h" /* for prototype of sbrk */ |
edd3ff1d JR |
48 | #endif |
49 | ||
f927c5ae JB |
50 | #include "lisp.h" |
51 | #include "commands.h" | |
bef79ee4 | 52 | #include "intervals.h" |
a08a816a | 53 | #include "buffer.h" |
3f6abfd7 | 54 | #include "window.h" |
f927c5ae | 55 | |
edc8ae07 | 56 | #include "systty.h" |
6c3a4e9d | 57 | #include "blockinput.h" |
8090eb09 | 58 | #include "syssignal.h" |
6c362a8b | 59 | #include "process.h" |
5bda49c6 | 60 | #include "termhooks.h" |
dfcf069d | 61 | #include "keyboard.h" |
e35f6ff7 | 62 | #include "keymap.h" |
a41f8bed | 63 | |
68c45bf0 PE |
64 | #ifdef HAVE_SETLOCALE |
65 | #include <locale.h> | |
66 | #endif | |
67 | ||
53c58b5d RS |
68 | #ifdef HAVE_SETRLIMIT |
69 | #include <sys/time.h> | |
70 | #include <sys/resource.h> | |
71 | #endif | |
72 | ||
dede2792 JD |
73 | #ifdef HAVE_PERSONALITY_LINUX32 |
74 | #include <sys/personality.h> | |
75 | #endif | |
76 | ||
f927c5ae JB |
77 | #ifndef O_RDWR |
78 | #define O_RDWR 2 | |
79 | #endif | |
80 | ||
f95c3f91 | 81 | #ifdef HAVE_SETPGID |
2b7e8799 | 82 | #if !defined (USG) || defined (BSD_PGRPS) |
90553aa3 | 83 | #undef setpgrp |
f95c3f91 GM |
84 | #define setpgrp setpgid |
85 | #endif | |
2b7e8799 | 86 | #endif |
f95c3f91 | 87 | |
90553aa3 DL |
88 | extern void malloc_warning P_ ((char *)); |
89 | extern void set_time_zone_rule P_ ((char *)); | |
8892f40b GM |
90 | #ifdef HAVE_INDEX |
91 | extern char *index P_ ((const char *, int)); | |
92 | #endif | |
43165242 | 93 | |
30aa3f19 GM |
94 | /* Make these values available in GDB, which doesn't see macros. */ |
95 | ||
6b61353c KH |
96 | #ifdef USE_LSB_TAG |
97 | int gdb_use_lsb = 1; | |
98 | #else | |
99 | int gdb_use_lsb = 0; | |
100 | #endif | |
101 | #ifdef NO_UNION_TYPE | |
102 | int gdb_use_union = 0; | |
103 | #else | |
104 | int gdb_use_union = 1; | |
105 | #endif | |
30aa3f19 GM |
106 | EMACS_INT gdb_valbits = VALBITS; |
107 | EMACS_INT gdb_gctypebits = GCTYPEBITS; | |
30aa3f19 GM |
108 | #ifdef DATA_SEG_BITS |
109 | EMACS_INT gdb_data_seg_bits = DATA_SEG_BITS; | |
110 | #else | |
df50cf6c | 111 | EMACS_INT gdb_data_seg_bits = 0; |
30aa3f19 | 112 | #endif |
00da0e4a | 113 | EMACS_INT PVEC_FLAG = PSEUDOVECTOR_FLAG; |
3fba6ca9 | 114 | EMACS_INT gdb_array_mark_flag = ARRAY_MARK_FLAG; |
6baa02d6 EZ |
115 | /* GDB might say "No enum type named pvec_type" if we don't have at |
116 | least one symbol with that type, and then xbacktrace could fail. */ | |
117 | enum pvec_type gdb_pvec_type = PVEC_TYPE_MASK; | |
30aa3f19 | 118 | |
7db35a48 | 119 | /* Command line args from shell, as list of strings. */ |
f927c5ae JB |
120 | Lisp_Object Vcommand_line_args; |
121 | ||
59653951 JB |
122 | /* The name under which Emacs was invoked, with any leading directory |
123 | names discarded. */ | |
124 | Lisp_Object Vinvocation_name; | |
125 | ||
ace40a69 RS |
126 | /* The directory name from which Emacs was invoked. */ |
127 | Lisp_Object Vinvocation_directory; | |
128 | ||
07f4d123 RS |
129 | /* The directory name in which to find subdirs such as lisp and etc. |
130 | nil means get them only from PATH_LOADSEARCH. */ | |
131 | Lisp_Object Vinstallation_directory; | |
132 | ||
e5d77022 JB |
133 | /* Hook run by `kill-emacs' before it does really anything. */ |
134 | Lisp_Object Vkill_emacs_hook; | |
135 | ||
f9a6326d SM |
136 | /* An empty lisp string. To avoid having to build any other. */ |
137 | Lisp_Object empty_string; | |
138 | ||
074a066b GV |
139 | /* Search path separator. */ |
140 | Lisp_Object Vpath_separator; | |
141 | ||
f927c5ae JB |
142 | /* Set nonzero after Emacs has started up the first time. |
143 | Prevents reinitialization of the Lisp world and keymaps | |
144 | on subsequent starts. */ | |
145 | int initialized; | |
146 | ||
15aaf1b5 RS |
147 | #ifdef DOUG_LEA_MALLOC |
148 | /* Preserves a pointer to the memory allocated that copies that | |
149 | static data inside glibc's malloc. */ | |
150 | void *malloc_state_ptr; | |
151 | /* From glibc, a routine that returns a copy of the malloc internal state. */ | |
152 | extern void *malloc_get_state (); | |
153 | /* From glibc, a routine that overwrites the malloc internal state. */ | |
fa8459a3 | 154 | extern int malloc_set_state (); |
7c9cd446 AS |
155 | /* Non-zero if the MALLOC_CHECK_ enviroment variable was set while |
156 | dumping. Used to work around a bug in glibc's malloc. */ | |
157 | int malloc_using_checking; | |
15aaf1b5 RS |
158 | #endif |
159 | ||
271c7b7c | 160 | /* Variable whose value is symbol giving operating system type. */ |
f927c5ae | 161 | Lisp_Object Vsystem_type; |
271c7b7c RS |
162 | |
163 | /* Variable whose value is string giving configuration built for. */ | |
164 | Lisp_Object Vsystem_configuration; | |
f0fc0b1a KH |
165 | |
166 | /* Variable whose value is string giving configuration options, | |
167 | for use when reporting bugs. */ | |
168 | Lisp_Object Vsystem_configuration_options; | |
169 | ||
213d0b1f RS |
170 | Lisp_Object Qfile_name_handler_alist; |
171 | ||
68c45bf0 | 172 | /* Current and previous system locales for messages and time. */ |
ca9c0567 PE |
173 | Lisp_Object Vsystem_messages_locale; |
174 | Lisp_Object Vprevious_system_messages_locale; | |
175 | Lisp_Object Vsystem_time_locale; | |
176 | Lisp_Object Vprevious_system_time_locale; | |
68c45bf0 | 177 | |
7d0393cf | 178 | /* If non-zero, emacs should not attempt to use a window-specific code, |
7db35a48 | 179 | but instead should use the virtual terminal under which it was started. */ |
f927c5ae JB |
180 | int inhibit_window_system; |
181 | ||
5aa7f46a JB |
182 | /* If nonzero, set Emacs to run at this priority. This is also used |
183 | in child_setup and sys_suspend to make sure subshells run at normal | |
7db35a48 | 184 | priority; those functions have their own extern declaration. */ |
31ade731 | 185 | EMACS_INT emacs_priority; |
3005da00 | 186 | |
7db35a48 PJ |
187 | /* If non-zero, a filter or a sentinel is running. Tested to save the match |
188 | data on the first attempt to change it inside asynchronous code. */ | |
7074fde6 FP |
189 | int running_asynch_code; |
190 | ||
647cec74 | 191 | #ifdef BSD_PGRPS |
9ae8f997 JB |
192 | /* See sysdep.c. */ |
193 | extern int inherited_pgroup; | |
194 | #endif | |
195 | ||
f927c5ae | 196 | #ifdef HAVE_X_WINDOWS |
7db35a48 | 197 | /* If non-zero, -d was specified, meaning we're using some window system. */ |
f927c5ae JB |
198 | int display_arg; |
199 | #endif | |
200 | ||
201 | /* An address near the bottom of the stack. | |
202 | Tells GC how to save a copy of the stack. */ | |
203 | char *stack_bottom; | |
204 | ||
dede2792 JD |
205 | /* The address where the heap starts (from the first sbrk (0) call). */ |
206 | static void *my_heap_start; | |
207 | ||
208 | /* The gap between BSS end and heap start as far as we can tell. */ | |
209 | static unsigned long heap_bss_diff; | |
210 | ||
211 | /* If the gap between BSS end and heap start is larger than this we try to | |
212 | work around it, and if that fails, output a warning in dump-emacs. */ | |
213 | #define MAX_HEAP_BSS_DIFF (1024*1024) | |
214 | ||
215 | ||
8ba50e1a | 216 | #ifdef HAVE_WINDOW_SYSTEM |
f927c5ae | 217 | extern Lisp_Object Vwindow_system; |
8ba50e1a | 218 | #endif /* HAVE_WINDOW_SYSTEM */ |
f927c5ae | 219 | |
1090a161 RS |
220 | extern Lisp_Object Vauto_save_list_file_name; |
221 | ||
9db03f6c KS |
222 | extern Lisp_Object Vinhibit_redisplay; |
223 | ||
f927c5ae JB |
224 | #ifdef USG_SHARED_LIBRARIES |
225 | /* If nonzero, this is the place to put the end of the writable segment | |
226 | at startup. */ | |
227 | ||
228 | unsigned int bss_end = 0; | |
229 | #endif | |
230 | ||
231 | /* Nonzero means running Emacs without interactive terminal. */ | |
232 | ||
233 | int noninteractive; | |
234 | ||
235 | /* Value of Lisp variable `noninteractive'. | |
236 | Normally same as C variable `noninteractive' | |
237 | but nothing terrible happens if user sets this one. */ | |
238 | ||
239 | int noninteractive1; | |
e29f86e4 RS |
240 | |
241 | /* Save argv and argc. */ | |
242 | char **initial_argv; | |
243 | int initial_argc; | |
081bef73 RS |
244 | |
245 | static void sort_args (); | |
dfcf069d | 246 | void syms_of_emacs (); |
bd4590ba | 247 | |
6b61353c KH |
248 | /* MSVC needs each string be shorter than 2048 bytes, so the usage |
249 | strings below are split to not overflow this limit. */ | |
73ebcd25 | 250 | #define USAGE1 "\ |
bd4590ba GM |
251 | Usage: %s [OPTION-OR-FILENAME]...\n\ |
252 | \n\ | |
253 | Run Emacs, the extensible, customizable, self-documenting real-time\n\ | |
254 | display editor. The recommended way to start Emacs for normal editing\n\ | |
255 | is with no options at all.\n\ | |
256 | \n\ | |
49ca717b | 257 | Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\ |
bd4590ba GM |
258 | read the main documentation for these command-line arguments.\n\ |
259 | \n\ | |
260 | Initialization options:\n\ | |
261 | \n\ | |
6b61353c KH |
262 | --batch do not do interactive display; implies -q\n\ |
263 | --debug-init enable Emacs Lisp debugger for init file\n\ | |
264 | --display, -d DISPLAY use X server DISPLAY\n\ | |
265 | --multibyte, --no-unibyte inhibit the effect of EMACS_UNIBYTE\n\ | |
266 | --no-desktop do not load a saved desktop\n\ | |
267 | --no-init-file, -q load neither ~/.emacs nor default.el\n\ | |
268 | --no-shared-memory, -nl do not use shared memory\n\ | |
269 | --no-site-file do not load site-start.el\n\ | |
270 | --no-splash do not display a splash screen on startup\n\ | |
2ff86b4e | 271 | --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\ |
bae52079 | 272 | --quick, -Q equivalent to -q --no-site-file --no-splash\n\ |
6b61353c KH |
273 | --script FILE run FILE as an Emacs Lisp script\n\ |
274 | --terminal, -t DEVICE use DEVICE for terminal I/O\n\ | |
bd4590ba | 275 | --unibyte, --no-multibyte run Emacs in unibyte mode\n\ |
6b61353c KH |
276 | --user, -u USER load ~USER/.emacs instead of your own\n\ |
277 | \n%s" | |
278 | ||
279 | #define USAGE2 "\ | |
bd4590ba GM |
280 | Action options:\n\ |
281 | \n\ | |
6b61353c KH |
282 | FILE visit FILE using find-file\n\ |
283 | +LINE FILE visit FILE using find-file, then go to line LINE\n\ | |
284 | +LINE:COLUMN FILE visit FILE using find-file, then go to line LINE,\n\ | |
285 | column COLUMN\n\ | |
286 | --directory, -L DIR add DIR to variable load-path\n\ | |
287 | --eval EXPR evaluate Emacs Lisp expression EXPR\n\ | |
288 | --execute EXPR evaluate Emacs Lisp expression EXPR\n\ | |
289 | --file FILE visit FILE using find-file\n\ | |
290 | --find-file FILE visit FILE using find-file\n\ | |
291 | --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\ | |
292 | --insert FILE insert contents of FILE into current buffer\n\ | |
293 | --kill exit without asking for confirmation\n\ | |
294 | --load, -l FILE load Emacs Lisp FILE using the load function\n\ | |
295 | --visit FILE visit FILE using find-file\n\ | |
73ebcd25 AI |
296 | \n" |
297 | ||
6b61353c | 298 | #define USAGE3 "\ |
5b2ca26b | 299 | Display options:\n\ |
bd4590ba | 300 | \n\ |
6b61353c | 301 | --background-color, -bg COLOR window background color\n\ |
2ff86b4e NR |
302 | --basic-display, -D disable many display features;\n\ |
303 | used for debugging Emacs\n\ | |
6b61353c KH |
304 | --border-color, -bd COLOR main border color\n\ |
305 | --border-width, -bw WIDTH width of main border\n\ | |
49ca717b | 306 | --color, --color=MODE color mode for character terminals;\n\ |
6b61353c KH |
307 | MODE defaults to `auto', and can also\n\ |
308 | be `never', `auto', `always',\n\ | |
309 | or a mode name like `ansi8'\n\ | |
310 | --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\ | |
311 | --font, -fn FONT default font; must be fixed-width\n\ | |
312 | --foreground-color, -fg COLOR window foreground color\n\ | |
313 | --fullheight, -fh make the first frame high as the screen\n\ | |
314 | --fullscreen, -fs make first frame fullscreen\n\ | |
315 | --fullwidth, -fw make the first frame wide as the screen\n\ | |
316 | --geometry, -g GEOMETRY window geometry\n\ | |
f9e36a6d | 317 | --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\ |
6b61353c KH |
318 | --iconic start Emacs in iconified state\n\ |
319 | --internal-border, -ib WIDTH width between text and main border\n\ | |
320 | --line-spacing, -lsp PIXELS additional space to put between lines\n\ | |
321 | --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\ | |
322 | --name NAME title for initial Emacs frame\n\ | |
49ca717b | 323 | --no-blinking-cursor, -nbc disable blinking cursor\n\ |
6b61353c KH |
324 | --reverse-video, -r, -rv switch foreground and background\n\ |
325 | --title, -T TITLE title for initial Emacs frame\n\ | |
326 | --vertical-scroll-bars, -vb enable vertical scroll bars\n\ | |
327 | --xrm XRESOURCES set additional X resources\n\ | |
328 | --help display this help and exit\n\ | |
329 | --version output version information and exit\n\ | |
07beadff JR |
330 | \n" |
331 | ||
332 | #define USAGE4 "\ | |
bd4590ba GM |
333 | You can generally also specify long option names with a single -; for\n\ |
334 | example, -batch as well as --batch. You can use any unambiguous\n\ | |
335 | abbreviation for a --option.\n\ | |
336 | \n\ | |
337 | Various environment variables and window system resources also affect\n\ | |
338 | Emacs' operation. See the main documentation.\n\ | |
07beadff | 339 | \n\ |
d883731c | 340 | Report bugs to %s. First, please see the Bugs\n\ |
bd4590ba GM |
341 | section of the Emacs manual or the file BUGS.\n" |
342 | ||
f927c5ae | 343 | \f |
7db35a48 | 344 | /* Signal code for the fatal signal that was received. */ |
f927c5ae JB |
345 | int fatal_error_code; |
346 | ||
7db35a48 | 347 | /* Nonzero if handling a fatal error already. */ |
f927c5ae JB |
348 | int fatal_error_in_progress; |
349 | ||
7db35a48 | 350 | /* If non-null, call this function from fatal_error_signal before |
4fab758d GM |
351 | committing suicide. */ |
352 | ||
353 | void (*fatal_error_signal_hook) P_ ((void)); | |
354 | ||
333f1b6f JD |
355 | #ifdef HAVE_GTK_AND_PTHREAD |
356 | /* When compiled with GTK and running under Gnome, multiple threads meay be | |
357 | created. Keep track of our main thread to make sure signals are delivered | |
358 | to it (see syssignal.h). */ | |
359 | ||
360 | pthread_t main_thread; | |
361 | #endif | |
362 | ||
4fab758d | 363 | |
7317d9e8 | 364 | #ifdef SIGUSR1 |
7317d9e8 RS |
365 | SIGTYPE |
366 | handle_USR1_signal (sig) | |
367 | int sig; | |
368 | { | |
5bda49c6 RS |
369 | struct input_event buf; |
370 | ||
333f1b6f | 371 | SIGNAL_THREAD_CHECK (sig); |
75816372 | 372 | bzero (&buf, sizeof buf); |
5b50dae1 | 373 | buf.kind = USER_SIGNAL_EVENT; |
74c2d1c6 | 374 | buf.frame_or_window = selected_frame; |
5bda49c6 RS |
375 | |
376 | kbd_buffer_store_event (&buf); | |
7317d9e8 | 377 | } |
5bda49c6 | 378 | #endif /* SIGUSR1 */ |
fcf01ad3 | 379 | |
7317d9e8 | 380 | #ifdef SIGUSR2 |
7317d9e8 RS |
381 | SIGTYPE |
382 | handle_USR2_signal (sig) | |
383 | int sig; | |
384 | { | |
5bda49c6 RS |
385 | struct input_event buf; |
386 | ||
333f1b6f | 387 | SIGNAL_THREAD_CHECK (sig); |
75816372 | 388 | bzero (&buf, sizeof buf); |
5b50dae1 | 389 | buf.kind = USER_SIGNAL_EVENT; |
e2fa15ff | 390 | buf.code = 1; |
74c2d1c6 | 391 | buf.frame_or_window = selected_frame; |
5bda49c6 RS |
392 | |
393 | kbd_buffer_store_event (&buf); | |
7317d9e8 | 394 | } |
5bda49c6 | 395 | #endif /* SIGUSR2 */ |
7317d9e8 | 396 | |
7db35a48 | 397 | /* Handle bus errors, invalid instruction, etc. */ |
2447c626 | 398 | SIGTYPE |
f927c5ae JB |
399 | fatal_error_signal (sig) |
400 | int sig; | |
401 | { | |
333f1b6f | 402 | SIGNAL_THREAD_CHECK (sig); |
f927c5ae JB |
403 | fatal_error_code = sig; |
404 | signal (sig, SIG_DFL); | |
405 | ||
061b7f94 RS |
406 | TOTALLY_UNBLOCK_INPUT; |
407 | ||
f927c5ae | 408 | /* If fatal error occurs in code below, avoid infinite recursion. */ |
8090eb09 JB |
409 | if (! fatal_error_in_progress) |
410 | { | |
411 | fatal_error_in_progress = 1; | |
f927c5ae | 412 | |
f7ab4e3d | 413 | shut_down_emacs (sig, 0, Qnil); |
8090eb09 | 414 | } |
f927c5ae JB |
415 | |
416 | #ifdef VMS | |
f927c5ae JB |
417 | LIB$STOP (SS$_ABORT); |
418 | #else | |
8090eb09 JB |
419 | /* Signal the same code; this time it will really be fatal. |
420 | Remember that since we're in a signal handler, the signal we're | |
421 | going to send is probably blocked, so we have to unblock it if we | |
422 | want to really receive it. */ | |
29b89fe0 | 423 | #ifndef MSDOS |
a90538cb | 424 | sigunblock (sigmask (fatal_error_code)); |
29b89fe0 | 425 | #endif |
4fab758d GM |
426 | |
427 | if (fatal_error_signal_hook) | |
428 | fatal_error_signal_hook (); | |
7db35a48 | 429 | |
f927c5ae JB |
430 | kill (getpid (), fatal_error_code); |
431 | #endif /* not VMS */ | |
432 | } | |
271c7b7c RS |
433 | |
434 | #ifdef SIGDANGER | |
435 | ||
16c323ee | 436 | /* Handler for SIGDANGER. */ |
271c7b7c RS |
437 | SIGTYPE |
438 | memory_warning_signal (sig) | |
439 | int sig; | |
440 | { | |
441 | signal (sig, memory_warning_signal); | |
333f1b6f | 442 | SIGNAL_THREAD_CHECK (sig); |
271c7b7c RS |
443 | |
444 | malloc_warning ("Operating system warns that virtual memory is running low.\n"); | |
55796183 RS |
445 | |
446 | /* It might be unsafe to call do_auto_save now. */ | |
447 | force_auto_save_soon (); | |
271c7b7c RS |
448 | } |
449 | #endif | |
fcf01ad3 RS |
450 | |
451 | /* We define abort, rather than using it from the library, | |
c9fe9cce | 452 | so that GDB can return from a breakpoint here. |
7db35a48 | 453 | MSDOS has its own definition in msdos.c. */ |
fcf01ad3 | 454 | |
37e2fdd2 | 455 | #if ! defined (DOS_NT) && ! defined (NO_ABORT) |
ca9c0567 PE |
456 | |
457 | #ifndef ABORT_RETURN_TYPE | |
458 | #define ABORT_RETURN_TYPE void | |
459 | #endif | |
460 | ||
461 | ABORT_RETURN_TYPE | |
fcf01ad3 RS |
462 | abort () |
463 | { | |
464 | kill (getpid (), SIGABRT); | |
37e2fdd2 RS |
465 | /* This shouldn't be executed, but it prevents a warning. */ |
466 | exit (1); | |
fcf01ad3 | 467 | } |
c9fe9cce | 468 | #endif |
fcf01ad3 | 469 | |
f927c5ae | 470 | \f |
7db35a48 | 471 | /* Code for dealing with Lisp access to the Unix command line. */ |
f927c5ae | 472 | |
dfcf069d | 473 | static void |
f927c5ae JB |
474 | init_cmdargs (argc, argv, skip_args) |
475 | int argc; | |
476 | char **argv; | |
477 | int skip_args; | |
478 | { | |
479 | register int i; | |
213d0b1f | 480 | Lisp_Object name, dir, tem; |
aed13378 | 481 | int count = SPECPDL_INDEX (); |
213d0b1f | 482 | Lisp_Object raw_name; |
f927c5ae | 483 | |
e29f86e4 RS |
484 | initial_argv = argv; |
485 | initial_argc = argc; | |
486 | ||
213d0b1f RS |
487 | raw_name = build_string (argv[0]); |
488 | ||
489 | /* Add /: to the front of the name | |
490 | if it would otherwise be treated as magic. */ | |
491 | tem = Ffind_file_name_handler (raw_name, Qt); | |
492 | if (! NILP (tem)) | |
493 | raw_name = concat2 (build_string ("/:"), raw_name); | |
494 | ||
495 | Vinvocation_name = Ffile_name_nondirectory (raw_name); | |
496 | Vinvocation_directory = Ffile_name_directory (raw_name); | |
497 | ||
ace40a69 RS |
498 | /* If we got no directory in argv[0], search PATH to find where |
499 | Emacs actually came from. */ | |
500 | if (NILP (Vinvocation_directory)) | |
501 | { | |
502 | Lisp_Object found; | |
503 | int yes = openp (Vexec_path, Vinvocation_name, | |
10c0915e | 504 | Vexec_suffixes, &found, make_number (X_OK)); |
e443f843 | 505 | if (yes == 1) |
213d0b1f RS |
506 | { |
507 | /* Add /: to the front of the name | |
508 | if it would otherwise be treated as magic. */ | |
509 | tem = Ffind_file_name_handler (found, Qt); | |
510 | if (! NILP (tem)) | |
511 | found = concat2 (build_string ("/:"), found); | |
512 | Vinvocation_directory = Ffile_name_directory (found); | |
513 | } | |
ace40a69 | 514 | } |
59653951 | 515 | |
4133b300 RS |
516 | if (!NILP (Vinvocation_directory) |
517 | && NILP (Ffile_name_absolute_p (Vinvocation_directory))) | |
213d0b1f RS |
518 | /* Emacs was started with relative path, like ./emacs. |
519 | Make it absolute. */ | |
4133b300 RS |
520 | Vinvocation_directory = Fexpand_file_name (Vinvocation_directory, Qnil); |
521 | ||
07f4d123 RS |
522 | Vinstallation_directory = Qnil; |
523 | ||
524 | if (!NILP (Vinvocation_directory)) | |
525 | { | |
526 | dir = Vinvocation_directory; | |
527 | name = Fexpand_file_name (Vinvocation_name, dir); | |
528 | while (1) | |
529 | { | |
f5ab9736 | 530 | Lisp_Object tem, lib_src_exists; |
07f4d123 RS |
531 | Lisp_Object etc_exists, info_exists; |
532 | ||
f5ab9736 RS |
533 | /* See if dir contains subdirs for use by Emacs. |
534 | Check for the ones that would exist in a build directory, | |
535 | not including lisp and info. */ | |
536 | tem = Fexpand_file_name (build_string ("lib-src"), dir); | |
537 | lib_src_exists = Ffile_exists_p (tem); | |
de004cc6 | 538 | |
70344b34 | 539 | #ifdef MSDOS |
de004cc6 RS |
540 | /* MSDOS installations frequently remove lib-src, but we still |
541 | must set installation-directory, or else info won't find | |
542 | its files (it uses the value of installation-directory). */ | |
543 | tem = Fexpand_file_name (build_string ("info"), dir); | |
544 | info_exists = Ffile_exists_p (tem); | |
70344b34 EZ |
545 | #else |
546 | info_exists = Qnil; | |
547 | #endif | |
de004cc6 RS |
548 | |
549 | if (!NILP (lib_src_exists) || !NILP (info_exists)) | |
07f4d123 | 550 | { |
f5ab9736 RS |
551 | tem = Fexpand_file_name (build_string ("etc"), dir); |
552 | etc_exists = Ffile_exists_p (tem); | |
553 | if (!NILP (etc_exists)) | |
07f4d123 | 554 | { |
f5ab9736 RS |
555 | Vinstallation_directory |
556 | = Ffile_name_as_directory (dir); | |
557 | break; | |
07f4d123 RS |
558 | } |
559 | } | |
560 | ||
561 | /* See if dir's parent contains those subdirs. */ | |
f5ab9736 RS |
562 | tem = Fexpand_file_name (build_string ("../lib-src"), dir); |
563 | lib_src_exists = Ffile_exists_p (tem); | |
de004cc6 | 564 | |
70344b34 EZ |
565 | |
566 | #ifdef MSDOS | |
567 | /* See the MSDOS commentary above. */ | |
de004cc6 RS |
568 | tem = Fexpand_file_name (build_string ("../info"), dir); |
569 | info_exists = Ffile_exists_p (tem); | |
70344b34 EZ |
570 | #else |
571 | info_exists = Qnil; | |
572 | #endif | |
de004cc6 RS |
573 | |
574 | if (!NILP (lib_src_exists) || !NILP (info_exists)) | |
07f4d123 | 575 | { |
f5ab9736 RS |
576 | tem = Fexpand_file_name (build_string ("../etc"), dir); |
577 | etc_exists = Ffile_exists_p (tem); | |
578 | if (!NILP (etc_exists)) | |
07f4d123 | 579 | { |
f5ab9736 RS |
580 | tem = Fexpand_file_name (build_string (".."), dir); |
581 | Vinstallation_directory | |
582 | = Ffile_name_as_directory (tem); | |
583 | break; | |
07f4d123 RS |
584 | } |
585 | } | |
586 | ||
587 | /* If the Emacs executable is actually a link, | |
588 | next try the dir that the link points into. */ | |
589 | tem = Ffile_symlink_p (name); | |
590 | if (!NILP (tem)) | |
591 | { | |
260ec24d | 592 | name = Fexpand_file_name (tem, dir); |
07f4d123 RS |
593 | dir = Ffile_name_directory (name); |
594 | } | |
595 | else | |
596 | break; | |
597 | } | |
598 | } | |
599 | ||
f927c5ae JB |
600 | Vcommand_line_args = Qnil; |
601 | ||
602 | for (i = argc - 1; i >= 0; i--) | |
603 | { | |
604 | if (i == 0 || i > skip_args) | |
a520393d KH |
605 | /* For the moment, we keep arguments as is in unibyte strings. |
606 | They are decoded in the function command-line after we know | |
607 | locale-coding-system. */ | |
f927c5ae | 608 | Vcommand_line_args |
68db37aa | 609 | = Fcons (make_unibyte_string (argv[i], strlen (argv[i])), |
a520393d | 610 | Vcommand_line_args); |
f927c5ae | 611 | } |
213d0b1f RS |
612 | |
613 | unbind_to (count, Qnil); | |
f927c5ae | 614 | } |
59653951 JB |
615 | |
616 | DEFUN ("invocation-name", Finvocation_name, Sinvocation_name, 0, 0, 0, | |
7db35a48 PJ |
617 | doc: /* Return the program name that was used to run Emacs. |
618 | Any directory names are omitted. */) | |
619 | () | |
59653951 JB |
620 | { |
621 | return Fcopy_sequence (Vinvocation_name); | |
622 | } | |
623 | ||
ace40a69 | 624 | DEFUN ("invocation-directory", Finvocation_directory, Sinvocation_directory, |
7db35a48 PJ |
625 | 0, 0, 0, |
626 | doc: /* Return the directory name in which the Emacs executable was located. */) | |
627 | () | |
ace40a69 RS |
628 | { |
629 | return Fcopy_sequence (Vinvocation_directory); | |
630 | } | |
631 | ||
f927c5ae JB |
632 | \f |
633 | #ifdef VMS | |
634 | #ifdef LINK_CRTL_SHARE | |
34035df3 | 635 | #ifdef SHARABLE_LIB_BUG |
f927c5ae | 636 | extern noshare char **environ; |
34035df3 | 637 | #endif /* SHARABLE_LIB_BUG */ |
f927c5ae JB |
638 | #endif /* LINK_CRTL_SHARE */ |
639 | #endif /* VMS */ | |
640 | ||
0269dedb RS |
641 | #ifdef HAVE_TZSET |
642 | /* A valid but unlikely value for the TZ environment value. | |
643 | It is OK (though a bit slower) if the user actually chooses this value. */ | |
644 | static char dump_tz[] = "UtC0"; | |
645 | #endif | |
646 | ||
a90538cb | 647 | #ifndef ORDINARY_LINK |
efd241cc RS |
648 | /* We don't include crtbegin.o and crtend.o in the link, |
649 | so these functions and variables might be missed. | |
650 | Provide dummy definitions to avoid error. | |
651 | (We don't have any real constructors or destructors.) */ | |
652 | #ifdef __GNUC__ | |
46e65b73 | 653 | #ifndef GCC_CTORS_IN_LIBC |
dfcf069d | 654 | void __do_global_ctors () |
efd241cc | 655 | {} |
dfcf069d | 656 | void __do_global_ctors_aux () |
c83a7064 | 657 | {} |
dfcf069d | 658 | void __do_global_dtors () |
33143604 | 659 | {} |
554061d8 | 660 | /* GNU/Linux has a bug in its library; avoid an error. */ |
8a2a6032 | 661 | #ifndef GNU_LINUX |
c83a7064 | 662 | char * __CTOR_LIST__[2] = { (char *) (-1), 0 }; |
64c1864a | 663 | #endif |
c83a7064 | 664 | char * __DTOR_LIST__[2] = { (char *) (-1), 0 }; |
46e65b73 | 665 | #endif /* GCC_CTORS_IN_LIBC */ |
dfcf069d | 666 | void __main () |
efd241cc | 667 | {} |
efd241cc | 668 | #endif /* __GNUC__ */ |
a90538cb | 669 | #endif /* ORDINARY_LINK */ |
efd241cc | 670 | |
e2925360 KH |
671 | /* Test whether the next argument in ARGV matches SSTR or a prefix of |
672 | LSTR (at least MINLEN characters). If so, then if VALPTR is non-null | |
673 | (the argument is supposed to have a value) store in *VALPTR either | |
674 | the next argument or the portion of this one after the equal sign. | |
675 | ARGV is read starting at position *SKIPPTR; this index is advanced | |
676 | by the number of arguments used. | |
677 | ||
678 | Too bad we can't just use getopt for all of this, but we don't have | |
679 | enough information to do it right. */ | |
081bef73 | 680 | |
e2925360 | 681 | static int |
df6530f8 | 682 | argmatch (argv, argc, sstr, lstr, minlen, valptr, skipptr) |
e2925360 | 683 | char **argv; |
df6530f8 | 684 | int argc; |
e2925360 KH |
685 | char *sstr; |
686 | char *lstr; | |
687 | int minlen; | |
688 | char **valptr; | |
689 | int *skipptr; | |
690 | { | |
6bbd7a29 | 691 | char *p = NULL; |
e2925360 | 692 | int arglen; |
df6530f8 RS |
693 | char *arg; |
694 | ||
695 | /* Don't access argv[argc]; give up in advance. */ | |
696 | if (argc <= *skipptr + 1) | |
697 | return 0; | |
698 | ||
699 | arg = argv[*skipptr+1]; | |
e2925360 KH |
700 | if (arg == NULL) |
701 | return 0; | |
702 | if (strcmp (arg, sstr) == 0) | |
703 | { | |
704 | if (valptr != NULL) | |
705 | { | |
706 | *valptr = argv[*skipptr+2]; | |
707 | *skipptr += 2; | |
708 | } | |
709 | else | |
710 | *skipptr += 1; | |
711 | return 1; | |
712 | } | |
713 | arglen = (valptr != NULL && (p = index (arg, '=')) != NULL | |
714 | ? p - arg : strlen (arg)); | |
c03e1113 | 715 | if (lstr == 0 || arglen < minlen || strncmp (arg, lstr, arglen) != 0) |
e2925360 KH |
716 | return 0; |
717 | else if (valptr == NULL) | |
718 | { | |
719 | *skipptr += 1; | |
720 | return 1; | |
721 | } | |
722 | else if (p != NULL) | |
723 | { | |
724 | *valptr = p+1; | |
725 | *skipptr += 1; | |
726 | return 1; | |
727 | } | |
728 | else if (argv[*skipptr+2] != NULL) | |
729 | { | |
730 | *valptr = argv[*skipptr+2]; | |
731 | *skipptr += 2; | |
732 | return 1; | |
733 | } | |
734 | else | |
735 | { | |
736 | return 0; | |
737 | } | |
738 | } | |
739 | ||
b6779252 | 740 | #ifdef DOUG_LEA_MALLOC |
f927c5ae | 741 | |
b6779252 KH |
742 | /* malloc can be invoked even before main (e.g. by the dynamic |
743 | linker), so the dumped malloc state must be restored as early as | |
744 | possible using this special hook. */ | |
745 | ||
746 | static void | |
747 | malloc_initialize_hook () | |
748 | { | |
1f9c3929 | 749 | #ifndef USE_CRT_DLL |
b6779252 | 750 | extern char **environ; |
1f9c3929 | 751 | #endif |
6000fe37 | 752 | |
15aaf1b5 RS |
753 | if (initialized) |
754 | { | |
7c9cd446 AS |
755 | if (!malloc_using_checking) |
756 | /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be | |
757 | ignored if the heap to be restored was constructed without | |
d942e12a AS |
758 | malloc checking. Can't use unsetenv, since that calls malloc. */ |
759 | { | |
760 | char **p; | |
761 | ||
a57c4026 | 762 | for (p = environ; p && *p; p++) |
d942e12a AS |
763 | if (strncmp (*p, "MALLOC_CHECK_=", 14) == 0) |
764 | { | |
765 | do | |
766 | *p = p[1]; | |
767 | while (*++p); | |
768 | break; | |
769 | } | |
770 | } | |
b6779252 | 771 | |
15aaf1b5 | 772 | malloc_set_state (malloc_state_ptr); |
68db37aa | 773 | #ifndef XMALLOC_OVERRUN_CHECK |
15aaf1b5 | 774 | free (malloc_state_ptr); |
68db37aa | 775 | #endif |
15aaf1b5 | 776 | } |
7c9cd446 | 777 | else |
dede2792 JD |
778 | { |
779 | if (my_heap_start == 0) | |
780 | my_heap_start = sbrk (0); | |
781 | malloc_using_checking = getenv ("MALLOC_CHECK_") != NULL; | |
782 | } | |
b6779252 KH |
783 | } |
784 | ||
785 | void (*__malloc_initialize_hook) () = malloc_initialize_hook; | |
786 | ||
787 | #endif /* DOUG_LEA_MALLOC */ | |
788 | ||
d883731c PJ |
789 | |
790 | #define REPORT_EMACS_BUG_ADDRESS "bug-gnu-emacs@gnu.org" | |
791 | #define REPORT_EMACS_BUG_PRETEST_ADDRESS "emacs-pretest-bug@gnu.org" | |
792 | ||
793 | /* This function is used to determine an address to which bug report should | |
794 | be sent. */ | |
795 | ||
400d6fa9 PJ |
796 | char * |
797 | bug_reporting_address () | |
d883731c | 798 | { |
400d6fa9 | 799 | int count = 0; |
d883731c PJ |
800 | Lisp_Object temp; |
801 | char *string; | |
802 | ||
803 | temp = Fsymbol_value (intern ("emacs-version")); | |
804 | ||
805 | /* When `emacs-version' is invalid, use normal address. */ | |
806 | if (!STRINGP(temp)) | |
807 | return REPORT_EMACS_BUG_ADDRESS; | |
808 | ||
d5db4077 | 809 | string = SDATA (temp); |
d883731c | 810 | |
400d6fa9 PJ |
811 | /* Count dots in `emacs-version'. */ |
812 | while (*string) | |
813 | { | |
814 | if (*string == '.') | |
815 | count++; | |
816 | string++; | |
817 | } | |
d883731c PJ |
818 | |
819 | /* When `emacs-version' has at least three dots, it is development or | |
820 | pretest version of Emacs. */ | |
400d6fa9 | 821 | return count >= 3 ? REPORT_EMACS_BUG_PRETEST_ADDRESS : REPORT_EMACS_BUG_ADDRESS; |
d883731c PJ |
822 | } |
823 | ||
824 | ||
b6779252 KH |
825 | /* ARGSUSED */ |
826 | int | |
3861bdcd DL |
827 | main (argc, argv |
828 | #ifdef VMS | |
829 | , envp | |
830 | #endif | |
831 | ) | |
b6779252 KH |
832 | int argc; |
833 | char **argv; | |
3861bdcd | 834 | #ifdef VMS |
b6779252 | 835 | char **envp; |
3861bdcd | 836 | #endif |
b6779252 | 837 | { |
2313132f | 838 | #if GC_MARK_STACK |
39ec21ea GM |
839 | Lisp_Object dummy; |
840 | #endif | |
b6779252 | 841 | char stack_bottom_variable; |
68c45bf0 | 842 | int do_initial_setlocale; |
b6779252 | 843 | int skip_args = 0; |
1f9c3929 | 844 | #ifndef USE_CRT_DLL |
b6779252 | 845 | extern int errno; |
1f9c3929 | 846 | #endif |
b6779252 KH |
847 | #ifdef HAVE_SETRLIMIT |
848 | struct rlimit rlim; | |
849 | #endif | |
850 | int no_loadup = 0; | |
6e910e07 | 851 | char *junk = 0; |
b6779252 | 852 | |
2313132f | 853 | #if GC_MARK_STACK |
39ec21ea GM |
854 | extern Lisp_Object *stack_base; |
855 | stack_base = &dummy; | |
856 | #endif | |
857 | ||
dede2792 JD |
858 | if (!initialized) |
859 | { | |
860 | extern char my_endbss[]; | |
861 | extern char *my_endbss_static; | |
862 | ||
863 | if (my_heap_start == 0) | |
864 | my_heap_start = sbrk (0); | |
865 | ||
866 | heap_bss_diff = (char *)my_heap_start - max (my_endbss, my_endbss_static); | |
867 | } | |
868 | ||
b6779252 KH |
869 | #ifdef LINUX_SBRK_BUG |
870 | __sbrk (1); | |
15aaf1b5 RS |
871 | #endif |
872 | ||
d785cf9e RS |
873 | #ifdef RUN_TIME_REMAP |
874 | if (initialized) | |
875 | run_time_remap (argv[0]); | |
876 | #endif | |
877 | ||
3fb79984 | 878 | #ifdef MAC_OSX |
e0f712ba AC |
879 | if (!initialized) |
880 | unexec_init_emacs_zone (); | |
881 | #endif | |
882 | ||
081bef73 | 883 | sort_args (argc, argv); |
956e3c7e RS |
884 | argc = 0; |
885 | while (argv[argc]) argc++; | |
081bef73 | 886 | |
3270ae6e KH |
887 | if (argmatch (argv, argc, "-version", "--version", 3, NULL, &skip_args) |
888 | /* We don't know the version number unless this is a dumped Emacs. | |
889 | So ignore --version otherwise. */ | |
890 | && initialized) | |
1702afef RS |
891 | { |
892 | Lisp_Object tem; | |
893 | tem = Fsymbol_value (intern ("emacs-version")); | |
894 | if (!STRINGP (tem)) | |
895 | { | |
896 | fprintf (stderr, "Invalid value of `emacs-version'\n"); | |
897 | exit (1); | |
898 | } | |
899 | else | |
900 | { | |
d5db4077 | 901 | printf ("GNU Emacs %s\n", SDATA (tem)); |
dcc9b98d | 902 | printf ("Copyright (C) 2006 Free Software Foundation, Inc.\n"); |
b455c665 RS |
903 | printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n"); |
904 | printf ("You may redistribute copies of Emacs\n"); | |
905 | printf ("under the terms of the GNU General Public License.\n"); | |
906 | printf ("For more information about these matters, "); | |
94487c4e | 907 | printf ("see the file named COPYING.\n"); |
1702afef RS |
908 | exit (0); |
909 | } | |
910 | } | |
911 | ||
dede2792 JD |
912 | #ifdef HAVE_PERSONALITY_LINUX32 |
913 | /* See if there is a gap between the end of BSS and the heap. | |
914 | In that case, set personality and exec ourself again. */ | |
915 | if (!initialized | |
916 | && (strcmp (argv[argc-1], "dump") == 0 | |
917 | || strcmp (argv[argc-1], "bootstrap") == 0) | |
918 | && heap_bss_diff > MAX_HEAP_BSS_DIFF) | |
919 | { | |
920 | if (! getenv ("EMACS_HEAP_EXEC")) | |
921 | { | |
922 | /* Set this so we only do this once. */ | |
923 | putenv("EMACS_HEAP_EXEC=true"); | |
711877f3 MY |
924 | |
925 | /* A flag to turn off address randomization which is introduced | |
926 | in linux kernel shipped with fedora core 4 */ | |
927 | #define ADD_NO_RANDOMIZE 0x0040000 | |
928 | personality (PER_LINUX32 | ADD_NO_RANDOMIZE); | |
929 | #undef ADD_NO_RANDOMIZE | |
930 | ||
dede2792 JD |
931 | execvp (argv[0], argv); |
932 | ||
933 | /* If the exec fails, try to dump anyway. */ | |
934 | perror ("execvp"); | |
935 | } | |
936 | } | |
937 | #endif /* HAVE_PERSONALITY_LINUX32 */ | |
938 | ||
939 | ||
f927c5ae JB |
940 | /* Map in shared memory, if we are using that. */ |
941 | #ifdef HAVE_SHM | |
df6530f8 | 942 | if (argmatch (argv, argc, "-nl", "--no-shared-memory", 6, NULL, &skip_args)) |
f927c5ae JB |
943 | { |
944 | map_in_data (0); | |
945 | /* The shared memory was just restored, which clobbered this. */ | |
946 | skip_args = 1; | |
947 | } | |
948 | else | |
949 | { | |
950 | map_in_data (1); | |
951 | /* The shared memory was just restored, which clobbered this. */ | |
952 | skip_args = 0; | |
953 | } | |
954 | #endif | |
955 | ||
19a36ec6 | 956 | #ifdef NeXT |
b9df9faa KH |
957 | { |
958 | extern int malloc_cookie; | |
959 | /* This helps out unexnext.c. */ | |
960 | if (initialized) | |
961 | if (malloc_jumpstart (malloc_cookie) != 0) | |
962 | printf ("malloc jumpstart failed!\n"); | |
963 | } | |
19a36ec6 RS |
964 | #endif /* NeXT */ |
965 | ||
e0f712ba AC |
966 | #ifdef MAC_OSX |
967 | /* Skip process serial number passed in the form -psn_x_y as | |
a4f8f6cf YM |
968 | command-line argument. The WindowServer adds this option when |
969 | Emacs is invoked from the Finder or by the `open' command. In | |
970 | these cases, the working directory becomes `/', so we change it | |
971 | to the user's home directory. */ | |
e0f712ba | 972 | if (argc > skip_args + 1 && strncmp (argv[skip_args+1], "-psn_", 5) == 0) |
a4f8f6cf YM |
973 | { |
974 | chdir (getenv ("HOME")); | |
975 | skip_args++; | |
976 | } | |
e0f712ba AC |
977 | #endif /* MAC_OSX */ |
978 | ||
f927c5ae | 979 | #ifdef VMS |
7db35a48 | 980 | /* If -map specified, map the data file in. */ |
e2925360 KH |
981 | { |
982 | char *file; | |
70646bb5 | 983 | if (argmatch (argv, argc, "-map", "--map-data", 3, &file, &skip_args)) |
e2925360 KH |
984 | mapin_data (file); |
985 | } | |
f927c5ae JB |
986 | |
987 | #ifdef LINK_CRTL_SHARE | |
34035df3 | 988 | #ifdef SHARABLE_LIB_BUG |
7db35a48 | 989 | /* Bletcherous shared libraries! */ |
f927c5ae JB |
990 | if (!stdin) |
991 | stdin = fdopen (0, "r"); | |
992 | if (!stdout) | |
993 | stdout = fdopen (1, "w"); | |
994 | if (!stderr) | |
995 | stderr = fdopen (2, "w"); | |
996 | if (!environ) | |
997 | environ = envp; | |
34035df3 | 998 | #endif /* SHARABLE_LIB_BUG */ |
f927c5ae JB |
999 | #endif /* LINK_CRTL_SHARE */ |
1000 | #endif /* VMS */ | |
1001 | ||
ea2acec5 | 1002 | #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK) |
6c2935e9 RS |
1003 | /* Extend the stack space available. |
1004 | Don't do that if dumping, since some systems (e.g. DJGPP) | |
1005 | might define a smaller stack limit at that time. */ | |
1006 | if (1 | |
1007 | #ifndef CANNOT_DUMP | |
1008 | && (!noninteractive || initialized) | |
1009 | #endif | |
1010 | && !getrlimit (RLIMIT_STACK, &rlim)) | |
53c58b5d | 1011 | { |
509a8fcd | 1012 | long newlim; |
fa8459a3 | 1013 | extern size_t re_max_failures; |
03effc23 KH |
1014 | /* Approximate the amount regex.c needs per unit of re_max_failures. */ |
1015 | int ratio = 20 * sizeof (char *); | |
1016 | /* Then add 33% to cover the size of the smaller stacks that regex.c | |
1017 | successively allocates and discards, on its way to the maximum. */ | |
1018 | ratio += ratio / 3; | |
1019 | /* Add in some extra to cover | |
1020 | what we're likely to use for other reasons. */ | |
1021 | newlim = re_max_failures * ratio + 200000; | |
d0381a7f RS |
1022 | #ifdef __NetBSD__ |
1023 | /* NetBSD (at least NetBSD 1.2G and former) has a bug in its | |
1024 | stack allocation routine for new process that the allocation | |
1025 | fails if stack limit is not on page boundary. So, round up the | |
1026 | new limit to page boundary. */ | |
1027 | newlim = (newlim + getpagesize () - 1) / getpagesize () * getpagesize(); | |
1028 | #endif | |
509a8fcd | 1029 | if (newlim > rlim.rlim_max) |
6c2935e9 RS |
1030 | { |
1031 | newlim = rlim.rlim_max; | |
03effc23 KH |
1032 | /* Don't let regex.c overflow the stack we have. */ |
1033 | re_max_failures = (newlim - 200000) / ratio; | |
6c2935e9 | 1034 | } |
509a8fcd RS |
1035 | if (rlim.rlim_cur < newlim) |
1036 | rlim.rlim_cur = newlim; | |
1037 | ||
53c58b5d RS |
1038 | setrlimit (RLIMIT_STACK, &rlim); |
1039 | } | |
ea2acec5 | 1040 | #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */ |
53c58b5d | 1041 | |
f927c5ae JB |
1042 | /* Record (approximately) where the stack begins. */ |
1043 | stack_bottom = &stack_bottom_variable; | |
1044 | ||
f927c5ae JB |
1045 | #ifdef USG_SHARED_LIBRARIES |
1046 | if (bss_end) | |
1d233b80 | 1047 | brk ((void *)bss_end); |
f927c5ae JB |
1048 | #endif |
1049 | ||
1050 | clearerr (stdin); | |
9ae8f997 | 1051 | |
f927c5ae | 1052 | #ifndef SYSTEM_MALLOC |
bf7f4e90 RS |
1053 | /* Arrange to get warning messages as memory fills up. */ |
1054 | memory_warnings (0, malloc_warning); | |
9ac0d9e0 | 1055 | |
f5a3c8c4 AI |
1056 | /* Call malloc at least once, to run the initial __malloc_hook. |
1057 | Also call realloc and free for consistency. */ | |
1058 | free (realloc (malloc (4), 4)); | |
bf7f4e90 | 1059 | |
06ca62eb | 1060 | # ifndef SYNC_INPUT |
bf7f4e90 RS |
1061 | /* Arrange to disable interrupt input inside malloc etc. */ |
1062 | uninterrupt_malloc (); | |
06ca62eb | 1063 | # endif /* not SYNC_INPUT */ |
f927c5ae JB |
1064 | #endif /* not SYSTEM_MALLOC */ |
1065 | ||
333f1b6f JD |
1066 | #ifdef HAVE_GTK_AND_PTHREAD |
1067 | main_thread = pthread_self (); | |
1068 | #endif /* HAVE_GTK_AND_PTHREAD */ | |
1069 | ||
edd3ff1d | 1070 | #if defined (MSDOS) || defined (WINDOWSNT) |
29b89fe0 RS |
1071 | /* We do all file input/output as binary files. When we need to translate |
1072 | newlines, we do that manually. */ | |
1073 | _fmode = O_BINARY; | |
edd3ff1d | 1074 | #endif /* MSDOS || WINDOWSNT */ |
18198bb2 | 1075 | |
edd3ff1d | 1076 | #ifdef MSDOS |
18198bb2 RS |
1077 | #if __DJGPP__ >= 2 |
1078 | if (!isatty (fileno (stdin))) | |
1079 | setmode (fileno (stdin), O_BINARY); | |
1080 | if (!isatty (fileno (stdout))) | |
1081 | { | |
1082 | fflush (stdout); | |
1083 | setmode (fileno (stdout), O_BINARY); | |
1084 | } | |
1085 | #else /* not __DJGPP__ >= 2 */ | |
29b89fe0 RS |
1086 | (stdin)->_flag &= ~_IOTEXT; |
1087 | (stdout)->_flag &= ~_IOTEXT; | |
1088 | (stderr)->_flag &= ~_IOTEXT; | |
18198bb2 | 1089 | #endif /* not __DJGPP__ >= 2 */ |
29b89fe0 RS |
1090 | #endif /* MSDOS */ |
1091 | ||
a422068f | 1092 | #ifdef SET_EMACS_PRIORITY |
3005da00 | 1093 | if (emacs_priority) |
5aa7f46a | 1094 | nice (emacs_priority); |
f927c5ae | 1095 | setuid (getuid ()); |
a422068f | 1096 | #endif /* SET_EMACS_PRIORITY */ |
f927c5ae | 1097 | |
68c45bf0 PE |
1098 | /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case. |
1099 | The build procedure uses this while dumping, to ensure that the | |
1100 | dumped Emacs does not have its system locale tables initialized, | |
1101 | as that might cause screwups when the dumped Emacs starts up. */ | |
1102 | { | |
1103 | char *lc_all = getenv ("LC_ALL"); | |
1104 | do_initial_setlocale = ! lc_all || strcmp (lc_all, "C"); | |
1105 | } | |
1106 | ||
1107 | /* Set locale now, so that initial error messages are localized properly. | |
1108 | fixup_locale must wait until later, since it builds strings. */ | |
1109 | if (do_initial_setlocale) | |
1110 | setlocale (LC_ALL, ""); | |
1111 | ||
d8b3a65d | 1112 | #ifdef EXTRA_INITIALIZE |
a9260219 | 1113 | EXTRA_INITIALIZE; |
d8b3a65d RS |
1114 | #endif |
1115 | ||
f927c5ae JB |
1116 | inhibit_window_system = 0; |
1117 | ||
7db35a48 | 1118 | /* Handle the -t switch, which specifies filename to use as terminal. */ |
956e3c7e RS |
1119 | while (1) |
1120 | { | |
1121 | char *term; | |
1122 | if (argmatch (argv, argc, "-t", "--terminal", 4, &term, &skip_args)) | |
1123 | { | |
1124 | int result; | |
68c45bf0 PE |
1125 | emacs_close (0); |
1126 | emacs_close (1); | |
1127 | result = emacs_open (term, O_RDWR, 0); | |
956e3c7e RS |
1128 | if (result < 0) |
1129 | { | |
1130 | char *errstring = strerror (errno); | |
186486eb | 1131 | fprintf (stderr, "%s: %s: %s\n", argv[0], term, errstring); |
956e3c7e RS |
1132 | exit (1); |
1133 | } | |
1134 | dup (0); | |
1135 | if (! isatty (0)) | |
1136 | { | |
186486eb | 1137 | fprintf (stderr, "%s: %s: not a tty\n", argv[0], term); |
956e3c7e RS |
1138 | exit (1); |
1139 | } | |
1140 | fprintf (stderr, "Using %s\n", term); | |
8ba50e1a | 1141 | #ifdef HAVE_WINDOW_SYSTEM |
956e3c7e | 1142 | inhibit_window_system = 1; /* -t => -nw */ |
f927c5ae | 1143 | #endif |
956e3c7e RS |
1144 | } |
1145 | else | |
1146 | break; | |
1147 | } | |
1148 | ||
400d6fa9 PJ |
1149 | /* Command line option --no-windows is deprecated and thus not mentioned |
1150 | in the manual and usage informations. */ | |
1151 | if (argmatch (argv, argc, "-nw", "--no-window-system", 6, NULL, &skip_args) | |
1152 | || argmatch (argv, argc, "-nw", "--no-windows", 6, NULL, &skip_args)) | |
e2925360 | 1153 | inhibit_window_system = 1; |
f927c5ae | 1154 | |
e2925360 | 1155 | /* Handle the -batch switch, which means don't do interactive display. */ |
f927c5ae | 1156 | noninteractive = 0; |
df6530f8 | 1157 | if (argmatch (argv, argc, "-batch", "--batch", 5, NULL, &skip_args)) |
55f4edbc RS |
1158 | { |
1159 | noninteractive = 1; | |
1160 | Vundo_outer_limit = Qnil; | |
1161 | } | |
6e910e07 RS |
1162 | if (argmatch (argv, argc, "-script", "--script", 3, &junk, &skip_args)) |
1163 | { | |
1164 | noninteractive = 1; /* Set batch mode. */ | |
e09b9180 RS |
1165 | /* Convert --script to --scriptload, un-skip it, and sort again |
1166 | so that it will be handled in proper sequence. */ | |
1167 | argv[skip_args - 1] = "-scriptload"; | |
6e910e07 RS |
1168 | skip_args -= 2; |
1169 | sort_args (argc, argv); | |
1170 | } | |
e2925360 | 1171 | |
7db35a48 | 1172 | /* Handle the --help option, which gives a usage message. */ |
df6530f8 | 1173 | if (argmatch (argv, argc, "-help", "--help", 3, NULL, &skip_args)) |
f927c5ae | 1174 | { |
6b61353c KH |
1175 | printf (USAGE1, argv[0], USAGE2); |
1176 | printf (USAGE3); | |
1177 | printf (USAGE4, bug_reporting_address ()); | |
e2925360 | 1178 | exit (0); |
f927c5ae JB |
1179 | } |
1180 | ||
edb85f59 RS |
1181 | if (! noninteractive) |
1182 | { | |
1183 | #ifdef BSD_PGRPS | |
1184 | if (initialized) | |
1185 | { | |
1186 | inherited_pgroup = EMACS_GETPGRP (0); | |
1187 | setpgrp (0, getpid ()); | |
1188 | } | |
1189 | #else | |
1190 | #if defined (USG5) && defined (INTERRUPT_INPUT) | |
1191 | setpgrp (); | |
1192 | #endif | |
1193 | #endif | |
1194 | } | |
1195 | ||
fb8e9847 | 1196 | init_signals (); |
fb8e9847 | 1197 | |
1efa2983 KH |
1198 | /* Don't catch SIGHUP if dumping. */ |
1199 | if (1 | |
1200 | #ifndef CANNOT_DUMP | |
1201 | && initialized | |
1202 | #endif | |
1203 | ) | |
1204 | { | |
57e3d22a | 1205 | sigblock (sigmask (SIGHUP)); |
1efa2983 KH |
1206 | /* In --batch mode, don't catch SIGHUP if already ignored. |
1207 | That makes nohup work. */ | |
1208 | if (! noninteractive | |
1209 | || signal (SIGHUP, SIG_IGN) != SIG_IGN) | |
1210 | signal (SIGHUP, fatal_error_signal); | |
57e3d22a | 1211 | sigunblock (sigmask (SIGHUP)); |
1efa2983 KH |
1212 | } |
1213 | ||
f927c5ae JB |
1214 | if ( |
1215 | #ifndef CANNOT_DUMP | |
1216 | ! noninteractive || initialized | |
1217 | #else | |
1218 | 1 | |
1219 | #endif | |
1220 | ) | |
1221 | { | |
1efa2983 | 1222 | /* Don't catch these signals in batch mode if dumping. |
f927c5ae JB |
1223 | On some machines, this sets static data that would make |
1224 | signal fail to work right when the dumped Emacs is run. */ | |
f927c5ae JB |
1225 | signal (SIGQUIT, fatal_error_signal); |
1226 | signal (SIGILL, fatal_error_signal); | |
1227 | signal (SIGTRAP, fatal_error_signal); | |
7317d9e8 RS |
1228 | #ifdef SIGUSR1 |
1229 | signal (SIGUSR1, handle_USR1_signal); | |
1230 | #ifdef SIGUSR2 | |
1231 | signal (SIGUSR2, handle_USR2_signal); | |
1232 | #endif | |
1233 | #endif | |
99e372cd RS |
1234 | #ifdef SIGABRT |
1235 | signal (SIGABRT, fatal_error_signal); | |
1236 | #endif | |
1237 | #ifdef SIGHWE | |
1238 | signal (SIGHWE, fatal_error_signal); | |
1239 | #endif | |
1240 | #ifdef SIGPRE | |
1241 | signal (SIGPRE, fatal_error_signal); | |
1242 | #endif | |
1243 | #ifdef SIGORE | |
1244 | signal (SIGORE, fatal_error_signal); | |
1245 | #endif | |
1246 | #ifdef SIGUME | |
1247 | signal (SIGUME, fatal_error_signal); | |
1248 | #endif | |
1249 | #ifdef SIGDLK | |
1250 | signal (SIGDLK, fatal_error_signal); | |
1251 | #endif | |
1252 | #ifdef SIGCPULIM | |
1253 | signal (SIGCPULIM, fatal_error_signal); | |
1254 | #endif | |
a90538cb JB |
1255 | #ifdef SIGIOT |
1256 | /* This is missing on some systems - OS/2, for example. */ | |
f927c5ae | 1257 | signal (SIGIOT, fatal_error_signal); |
a90538cb | 1258 | #endif |
f927c5ae JB |
1259 | #ifdef SIGEMT |
1260 | signal (SIGEMT, fatal_error_signal); | |
1261 | #endif | |
1262 | signal (SIGFPE, fatal_error_signal); | |
00eaaa32 | 1263 | #ifdef SIGBUS |
f927c5ae | 1264 | signal (SIGBUS, fatal_error_signal); |
00eaaa32 | 1265 | #endif |
f927c5ae | 1266 | signal (SIGSEGV, fatal_error_signal); |
00eaaa32 | 1267 | #ifdef SIGSYS |
f927c5ae | 1268 | signal (SIGSYS, fatal_error_signal); |
00eaaa32 | 1269 | #endif |
f927c5ae JB |
1270 | signal (SIGTERM, fatal_error_signal); |
1271 | #ifdef SIGXCPU | |
1272 | signal (SIGXCPU, fatal_error_signal); | |
1273 | #endif | |
1274 | #ifdef SIGXFSZ | |
1275 | signal (SIGXFSZ, fatal_error_signal); | |
1276 | #endif /* SIGXFSZ */ | |
1277 | ||
271c7b7c RS |
1278 | #ifdef SIGDANGER |
1279 | /* This just means available memory is getting low. */ | |
1280 | signal (SIGDANGER, memory_warning_signal); | |
1281 | #endif | |
1282 | ||
f927c5ae | 1283 | #ifdef AIX |
56e034fa RS |
1284 | /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */ |
1285 | signal (SIGXCPU, fatal_error_signal); | |
0aef8561 | 1286 | #ifndef _I386 |
f927c5ae | 1287 | signal (SIGIOINT, fatal_error_signal); |
0aef8561 | 1288 | #endif |
f927c5ae JB |
1289 | signal (SIGGRANT, fatal_error_signal); |
1290 | signal (SIGRETRACT, fatal_error_signal); | |
1291 | signal (SIGSOUND, fatal_error_signal); | |
1292 | signal (SIGMSG, fatal_error_signal); | |
1293 | #endif /* AIX */ | |
1294 | } | |
1295 | ||
1296 | noninteractive1 = noninteractive; | |
1297 | ||
7db35a48 | 1298 | /* Perform basic initializations (not merely interning symbols). */ |
f927c5ae JB |
1299 | |
1300 | if (!initialized) | |
1301 | { | |
1302 | init_alloc_once (); | |
1303 | init_obarray (); | |
1304 | init_eval_once (); | |
e37d7195 | 1305 | init_character_once (); |
270ce821 KH |
1306 | init_charset_once (); |
1307 | init_coding_once (); | |
f927c5ae | 1308 | init_syntax_once (); /* Create standard syntax table. */ |
270ce821 | 1309 | init_category_once (); /* Create standard category table. */ |
7db35a48 | 1310 | /* Must be done before init_buffer. */ |
f927c5ae | 1311 | init_casetab_once (); |
7db35a48 PJ |
1312 | init_buffer_once (); /* Create buffer table and some buffers. */ |
1313 | init_minibuf_once (); /* Create list of minibuffers. */ | |
1314 | /* Must precede init_window_once. */ | |
1315 | ||
90d920b6 GM |
1316 | /* Call syms_of_xfaces before init_window_once because that |
1317 | function creates Vterminal_frame. Termcap frames now use | |
1318 | faces, and the face implementation uses some symbols as | |
1319 | face names. */ | |
90d920b6 | 1320 | syms_of_xfaces (); |
7a18af49 KR |
1321 | /* Call syms_of_keyboard before init_window_once because |
1322 | keyboard sets up symbols that include some face names that | |
1323 | the X support will want to use. This can happen when | |
1324 | CANNOT_DUMP is defined. */ | |
1325 | syms_of_keyboard (); | |
90d920b6 | 1326 | |
e0f712ba | 1327 | #ifdef MAC_OS8 |
c1e279c2 AC |
1328 | /* init_window_once calls make_terminal_frame which on Mac OS |
1329 | creates a full-fledge output_mac type frame. This does not | |
1330 | work correctly before syms_of_textprop, syms_of_macfns, | |
1331 | syms_of_ccl, syms_of_fontset, syms_of_xterm, syms_of_search, | |
b15325b2 | 1332 | syms_of_frame, mac_term_init, and init_keyboard have already |
c1e279c2 | 1333 | been called. */ |
1a578e9b AC |
1334 | syms_of_textprop (); |
1335 | syms_of_macfns (); | |
1336 | syms_of_ccl (); | |
1337 | syms_of_fontset (); | |
1338 | syms_of_macterm (); | |
1339 | syms_of_macmenu (); | |
ab271aca | 1340 | syms_of_macselect (); |
1a578e9b AC |
1341 | syms_of_data (); |
1342 | syms_of_search (); | |
c1e279c2 | 1343 | syms_of_frame (); |
7db35a48 | 1344 | |
34e1bbc2 | 1345 | init_atimer (); |
b15325b2 | 1346 | mac_term_init (build_string ("Mac"), NULL, NULL); |
1a578e9b AC |
1347 | init_keyboard (); |
1348 | #endif | |
1349 | ||
7db35a48 | 1350 | init_window_once (); /* Init the window system. */ |
680256a8 | 1351 | init_fileio_once (); /* Must precede any path manipulation. */ |
6b61353c KH |
1352 | #ifdef HAVE_WINDOW_SYSTEM |
1353 | init_fringe_once (); /* Swap bitmaps if necessary. */ | |
1354 | #endif /* HAVE_WINDOW_SYSTEM */ | |
f927c5ae JB |
1355 | } |
1356 | ||
1357 | init_alloc (); | |
68c45bf0 PE |
1358 | |
1359 | if (do_initial_setlocale) | |
1360 | { | |
1361 | fixup_locale (); | |
ca9c0567 PE |
1362 | Vsystem_messages_locale = Vprevious_system_messages_locale; |
1363 | Vsystem_time_locale = Vprevious_system_time_locale; | |
68c45bf0 PE |
1364 | } |
1365 | ||
f927c5ae JB |
1366 | init_eval (); |
1367 | init_data (); | |
ad067ea6 | 1368 | #ifdef CLASH_DETECTION |
01f67d2c | 1369 | init_filelock (); |
ad067ea6 | 1370 | #endif |
34e1bbc2 | 1371 | #ifndef MAC_OS8 |
ab5d0358 | 1372 | init_atimer (); |
34e1bbc2 | 1373 | #endif |
7074fde6 | 1374 | running_asynch_code = 0; |
0e956009 | 1375 | |
a08a816a RS |
1376 | /* Handle --unibyte and the EMACS_UNIBYTE envvar, |
1377 | but not while dumping. */ | |
e721aa94 | 1378 | if (1) |
a08a816a RS |
1379 | { |
1380 | int inhibit_unibyte = 0; | |
1381 | ||
1382 | /* --multibyte overrides EMACS_UNIBYTE. */ | |
1383 | if (argmatch (argv, argc, "-no-unibyte", "--no-unibyte", 4, NULL, &skip_args) | |
e721aa94 SM |
1384 | || argmatch (argv, argc, "-multibyte", "--multibyte", 4, NULL, &skip_args) |
1385 | /* Ignore EMACS_UNIBYTE before dumping. */ | |
1386 | || (!initialized && noninteractive)) | |
a08a816a RS |
1387 | inhibit_unibyte = 1; |
1388 | ||
1389 | /* --unibyte requests that we set up to do everything with single-byte | |
1390 | buffers and strings. We need to handle this before calling | |
1391 | init_lread, init_editfns and other places that generate Lisp strings | |
1392 | from text in the environment. */ | |
c0218e1b DL |
1393 | /* Actually this shouldn't be needed as of 20.4 in a generally |
1394 | unibyte environment. As handa says, environment values | |
1395 | aren't now decoded; also existing buffers are now made | |
1396 | unibyte during startup if .emacs sets unibyte. Tested with | |
1397 | 8-bit data in environment variables and /etc/passwd, setting | |
7db35a48 | 1398 | unibyte and Latin-1 in .emacs. -- Dave Love */ |
a08a816a RS |
1399 | if (argmatch (argv, argc, "-unibyte", "--unibyte", 4, NULL, &skip_args) |
1400 | || argmatch (argv, argc, "-no-multibyte", "--no-multibyte", 4, NULL, &skip_args) | |
1401 | || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte)) | |
1402 | { | |
1403 | Lisp_Object old_log_max; | |
1404 | Lisp_Object symbol, tail; | |
1405 | ||
1406 | symbol = intern ("default-enable-multibyte-characters"); | |
1407 | Fset (symbol, Qnil); | |
1408 | ||
6524291c KH |
1409 | if (initialized) |
1410 | { | |
1411 | /* Erase pre-dump messages in *Messages* now so no abort. */ | |
1412 | old_log_max = Vmessage_log_max; | |
1413 | XSETFASTINT (Vmessage_log_max, 0); | |
1414 | message_dolog ("", 0, 1, 0); | |
1415 | Vmessage_log_max = old_log_max; | |
1416 | } | |
a08a816a | 1417 | |
3e75bb9e | 1418 | for (tail = Vbuffer_alist; CONSP (tail); |
7539e11f | 1419 | tail = XCDR (tail)) |
a08a816a RS |
1420 | { |
1421 | Lisp_Object buffer; | |
1422 | ||
7539e11f | 1423 | buffer = Fcdr (XCAR (tail)); |
8f924df7 | 1424 | /* Make a multibyte buffer unibyte. */ |
f2b89e21 KH |
1425 | if (BUF_Z_BYTE (XBUFFER (buffer)) > BUF_Z (XBUFFER (buffer))) |
1426 | { | |
1427 | struct buffer *current = current_buffer; | |
1428 | ||
1429 | set_buffer_temp (XBUFFER (buffer)); | |
8f924df7 | 1430 | Fset_buffer_multibyte (Qnil); |
f2b89e21 KH |
1431 | set_buffer_temp (current); |
1432 | } | |
a08a816a RS |
1433 | } |
1434 | } | |
1435 | } | |
1436 | ||
956e3c7e | 1437 | no_loadup |
b96f9fb7 | 1438 | = argmatch (argv, argc, "-nl", "--no-loadup", 6, NULL, &skip_args); |
956e3c7e RS |
1439 | |
1440 | ||
1441 | #ifdef HAVE_X_WINDOWS | |
1442 | /* Stupid kludge to catch command-line display spec. We can't | |
1443 | handle this argument entirely in window system dependent code | |
1444 | because we don't even know which window system dependent code | |
1445 | to run until we've recognized this argument. */ | |
1446 | { | |
1447 | char *displayname = 0; | |
956e3c7e RS |
1448 | int count_before = skip_args; |
1449 | ||
1450 | /* Skip any number of -d options, but only use the last one. */ | |
1451 | while (1) | |
1452 | { | |
1453 | int count_before_this = skip_args; | |
1454 | ||
1455 | if (argmatch (argv, argc, "-d", "--display", 3, &displayname, &skip_args)) | |
1456 | display_arg = 1; | |
1457 | else if (argmatch (argv, argc, "-display", 0, 3, &displayname, &skip_args)) | |
1458 | display_arg = 1; | |
1459 | else | |
1460 | break; | |
1461 | ||
1462 | count_before = count_before_this; | |
1463 | } | |
1464 | ||
1465 | /* If we have the form --display=NAME, | |
1466 | convert it into -d name. | |
1467 | This requires inserting a new element into argv. */ | |
1468 | if (displayname != 0 && skip_args - count_before == 1) | |
1469 | { | |
1470 | char **new = (char **) xmalloc (sizeof (char *) * (argc + 2)); | |
1471 | int j; | |
1472 | ||
1473 | for (j = 0; j < count_before + 1; j++) | |
1474 | new[j] = argv[j]; | |
1475 | new[count_before + 1] = "-d"; | |
1476 | new[count_before + 2] = displayname; | |
1477 | for (j = count_before + 2; j <argc; j++) | |
1478 | new[j + 1] = argv[j]; | |
1479 | argv = new; | |
1480 | argc++; | |
1481 | } | |
1482 | /* Change --display to -d, when its arg is separate. */ | |
1483 | else if (displayname != 0 && skip_args > count_before | |
1484 | && argv[count_before + 1][1] == '-') | |
1485 | argv[count_before + 1] = "-d"; | |
1486 | ||
1487 | /* Don't actually discard this arg. */ | |
1488 | skip_args = count_before; | |
1489 | } | |
1490 | #endif | |
1491 | ||
1492 | /* argmatch must not be used after here, | |
1493 | except when bulding temacs | |
1494 | because the -d argument has not been skipped in skip_args. */ | |
1495 | ||
29b89fe0 RS |
1496 | #ifdef MSDOS |
1497 | /* Call early 'cause init_environment needs it. */ | |
1498 | init_dosfns (); | |
1499 | /* Set defaults for several environment variables. */ | |
18198bb2 RS |
1500 | if (initialized) |
1501 | init_environment (argc, argv, skip_args); | |
1502 | else | |
d1fc6752 | 1503 | tzset (); |
18198bb2 | 1504 | #endif /* MSDOS */ |
29b89fe0 | 1505 | |
8ba50e1a | 1506 | #ifdef WINDOWSNT |
9785d95b | 1507 | globals_of_w32 (); |
8ba50e1a | 1508 | /* Initialize environment from registry settings. */ |
a3a58294 | 1509 | init_environment (argv); |
7db35a48 | 1510 | init_ntproc (); /* must precede init_editfns. */ |
8ba50e1a GV |
1511 | #endif |
1512 | ||
3ec33130 | 1513 | #if defined (MAC_OSX) && defined (HAVE_CARBON) |
1000788b AC |
1514 | if (initialized) |
1515 | init_mac_osx_environment (); | |
1516 | #endif | |
1517 | ||
0e956009 JB |
1518 | /* egetenv is a pretty low-level facility, which may get called in |
1519 | many circumstances; it seems flimsy to put off initializing it | |
1520 | until calling init_callproc. */ | |
1521 | set_process_environment (); | |
93aed04d RS |
1522 | /* AIX crashes are reported in system versions 3.2.3 and 3.2.4 |
1523 | if this is not done. Do it after set_process_environment so that we | |
1524 | don't pollute Vprocess_environment. */ | |
fa09a82d DL |
1525 | /* Setting LANG here will defeat the startup locale processing... */ |
1526 | #ifdef AIX3_2 | |
93aed04d RS |
1527 | putenv ("LANG=C"); |
1528 | #endif | |
0e956009 | 1529 | |
7db35a48 | 1530 | init_buffer (); /* Init default directory of main buffer. */ |
ace40a69 | 1531 | |
7928f0b5 | 1532 | init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */ |
ace40a69 | 1533 | init_cmdargs (argc, argv, skip_args); /* Must precede init_lread. */ |
380e25b8 RS |
1534 | |
1535 | if (initialized) | |
1536 | { | |
7db35a48 | 1537 | /* Erase any pre-dump messages in the message log, to avoid confusion. */ |
380e25b8 RS |
1538 | Lisp_Object old_log_max; |
1539 | old_log_max = Vmessage_log_max; | |
1540 | XSETFASTINT (Vmessage_log_max, 0); | |
f6fe7bb5 | 1541 | message_dolog ("", 0, 1, 0); |
380e25b8 RS |
1542 | Vmessage_log_max = old_log_max; |
1543 | } | |
1544 | ||
7928f0b5 | 1545 | init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */ |
fb8e9847 | 1546 | init_lread (); |
f927c5ae | 1547 | |
8bb697c0 RS |
1548 | /* Intern the names of all standard functions and variables; |
1549 | define standard keys. */ | |
f927c5ae JB |
1550 | |
1551 | if (!initialized) | |
1552 | { | |
7db35a48 | 1553 | /* The basic levels of Lisp must come first. */ |
f927c5ae | 1554 | /* And data must come first of all |
7db35a48 | 1555 | for the sake of symbols like error-message. */ |
e0f712ba AC |
1556 | #ifndef MAC_OS8 |
1557 | /* Called before init_window_once for Mac OS Classic. */ | |
f927c5ae | 1558 | syms_of_data (); |
1a578e9b | 1559 | #endif |
f927c5ae | 1560 | syms_of_alloc (); |
e37d7195 | 1561 | syms_of_chartab (); |
fb8e9847 | 1562 | syms_of_lread (); |
f927c5ae JB |
1563 | syms_of_print (); |
1564 | syms_of_eval (); | |
1565 | syms_of_fns (); | |
f927c5ae | 1566 | syms_of_floatfns (); |
f927c5ae JB |
1567 | |
1568 | syms_of_abbrev (); | |
1569 | syms_of_buffer (); | |
1570 | syms_of_bytecode (); | |
1571 | syms_of_callint (); | |
1572 | syms_of_casefiddle (); | |
1573 | syms_of_casetab (); | |
1574 | syms_of_callproc (); | |
270ce821 | 1575 | syms_of_category (); |
e0f712ba AC |
1576 | #ifndef MAC_OS8 |
1577 | /* Called before init_window_once for Mac OS Classic. */ | |
270ce821 | 1578 | syms_of_ccl (); |
1a578e9b | 1579 | #endif |
e37d7195 | 1580 | syms_of_character (); |
270ce821 | 1581 | syms_of_charset (); |
f927c5ae JB |
1582 | syms_of_cmds (); |
1583 | #ifndef NO_DIR_LIBRARY | |
1584 | syms_of_dired (); | |
1585 | #endif /* not NO_DIR_LIBRARY */ | |
1586 | syms_of_display (); | |
1587 | syms_of_doc (); | |
1588 | syms_of_editfns (); | |
1589 | syms_of_emacs (); | |
1590 | syms_of_fileio (); | |
270ce821 | 1591 | syms_of_coding (); /* This should be after syms_of_fileio. */ |
f927c5ae JB |
1592 | #ifdef CLASH_DETECTION |
1593 | syms_of_filelock (); | |
1594 | #endif /* CLASH_DETECTION */ | |
1595 | syms_of_indent (); | |
c2c5ed2c | 1596 | syms_of_insdel (); |
f927c5ae JB |
1597 | syms_of_keymap (); |
1598 | syms_of_macros (); | |
1599 | syms_of_marker (); | |
1600 | syms_of_minibuf (); | |
f927c5ae | 1601 | syms_of_process (); |
e0f712ba AC |
1602 | #ifndef MAC_OS8 |
1603 | /* Called before init_window_once for Mac OS Classic. */ | |
f927c5ae | 1604 | syms_of_search (); |
1cbd5d9d | 1605 | syms_of_frame (); |
c1e279c2 | 1606 | #endif |
f927c5ae | 1607 | syms_of_syntax (); |
0d934e7b | 1608 | syms_of_term (); |
f927c5ae | 1609 | syms_of_undo (); |
90d920b6 GM |
1610 | #ifdef HAVE_SOUND |
1611 | syms_of_sound (); | |
1612 | #endif | |
e0f712ba AC |
1613 | #ifndef MAC_OS8 |
1614 | /* Called before init_window_once for Mac OS Classic. */ | |
bef79ee4 | 1615 | syms_of_textprop (); |
1a578e9b | 1616 | #endif |
9d100795 | 1617 | syms_of_composite (); |
f927c5ae JB |
1618 | #ifdef VMS |
1619 | syms_of_vmsproc (); | |
1620 | #endif /* VMS */ | |
05687c54 RS |
1621 | #ifdef WINDOWSNT |
1622 | syms_of_ntproc (); | |
1623 | #endif /* WINDOWSNT */ | |
f927c5ae JB |
1624 | syms_of_window (); |
1625 | syms_of_xdisp (); | |
6b61353c KH |
1626 | #ifdef HAVE_WINDOW_SYSTEM |
1627 | syms_of_fringe (); | |
1628 | syms_of_image (); | |
1629 | #endif /* HAVE_WINDOW_SYSTEM */ | |
f927c5ae | 1630 | #ifdef HAVE_X_WINDOWS |
72412588 | 1631 | syms_of_xterm (); |
f927c5ae | 1632 | syms_of_xfns (); |
270ce821 | 1633 | syms_of_fontset (); |
28b1b672 JD |
1634 | #ifdef HAVE_X_SM |
1635 | syms_of_xsmfns (); | |
1636 | #endif | |
72412588 JB |
1637 | #ifdef HAVE_X11 |
1638 | syms_of_xselect (); | |
1639 | #endif | |
f927c5ae JB |
1640 | #endif /* HAVE_X_WINDOWS */ |
1641 | ||
1e9c210b | 1642 | #ifndef HAVE_NTGUI |
e0f712ba AC |
1643 | #ifndef MAC_OS |
1644 | /* Called before init_window_once for Mac OS Classic. */ | |
6c850f3c | 1645 | syms_of_xmenu (); |
1e9c210b | 1646 | #endif |
1a578e9b | 1647 | #endif |
6c850f3c | 1648 | |
8ba50e1a | 1649 | #ifdef HAVE_NTGUI |
fbd6baed GV |
1650 | syms_of_w32term (); |
1651 | syms_of_w32fns (); | |
fbd6baed GV |
1652 | syms_of_w32select (); |
1653 | syms_of_w32menu (); | |
02062ac3 | 1654 | syms_of_fontset (); |
8ba50e1a GV |
1655 | #endif /* HAVE_NTGUI */ |
1656 | ||
3ec33130 | 1657 | #if defined (MAC_OSX) && defined (HAVE_CARBON) |
e0f712ba AC |
1658 | syms_of_macterm (); |
1659 | syms_of_macfns (); | |
1660 | syms_of_macmenu (); | |
ab271aca | 1661 | syms_of_macselect (); |
e0f712ba | 1662 | syms_of_fontset (); |
3ec33130 | 1663 | #endif /* MAC_OSX && HAVE_CARBON */ |
e0f712ba | 1664 | |
f927c5ae JB |
1665 | #ifdef SYMS_SYSTEM |
1666 | SYMS_SYSTEM; | |
1667 | #endif | |
1668 | ||
1669 | #ifdef SYMS_MACHINE | |
1670 | SYMS_MACHINE; | |
1671 | #endif | |
1672 | ||
1673 | keys_of_casefiddle (); | |
1674 | keys_of_cmds (); | |
1675 | keys_of_buffer (); | |
1676 | keys_of_keyboard (); | |
1677 | keys_of_keymap (); | |
f927c5ae JB |
1678 | keys_of_minibuf (); |
1679 | keys_of_window (); | |
9785d95b | 1680 | } |
3b6536b1 | 1681 | else |
9785d95b | 1682 | { |
3b6536b1 AS |
1683 | /* Initialization that must be done even if the global variable |
1684 | initialized is non zero. */ | |
9785d95b BK |
1685 | #ifdef HAVE_NTGUI |
1686 | globals_of_w32fns (); | |
1687 | globals_of_w32menu (); | |
52c7f9ee | 1688 | globals_of_w32select (); |
3b6536b1 | 1689 | #endif /* HAVE_NTGUI */ |
f927c5ae JB |
1690 | } |
1691 | ||
cf411e8d KH |
1692 | init_charset (); |
1693 | ||
8bb697c0 RS |
1694 | if (!noninteractive) |
1695 | { | |
1696 | #ifdef VMS | |
7db35a48 | 1697 | init_vms_input ();/* init_display calls get_frame_size, that needs this. */ |
8bb697c0 | 1698 | #endif /* VMS */ |
7db35a48 | 1699 | init_display (); /* Determine terminal type. init_sys_modes uses results. */ |
8bb697c0 | 1700 | } |
e0f712ba AC |
1701 | #ifndef MAC_OS8 |
1702 | /* Called before init_window_once for Mac OS Classic. */ | |
7db35a48 | 1703 | init_keyboard (); /* This too must precede init_sys_modes. */ |
1a578e9b | 1704 | #endif |
8bb697c0 | 1705 | #ifdef VMS |
7db35a48 | 1706 | init_vmsproc (); /* And this too. */ |
8bb697c0 | 1707 | #endif /* VMS */ |
7db35a48 | 1708 | init_sys_modes (); /* Init system terminal modes (RAW or CBREAK, etc.). */ |
90d920b6 | 1709 | init_fns (); |
8bb697c0 | 1710 | init_xdisp (); |
6b61353c KH |
1711 | #ifdef HAVE_WINDOW_SYSTEM |
1712 | init_fringe (); | |
1713 | init_image (); | |
1714 | #endif /* HAVE_WINDOW_SYSTEM */ | |
8bb697c0 RS |
1715 | init_macros (); |
1716 | init_editfns (); | |
8bb697c0 | 1717 | init_floatfns (); |
8bb697c0 RS |
1718 | #ifdef VMS |
1719 | init_vmsfns (); | |
1720 | #endif /* VMS */ | |
1721 | init_process (); | |
90d920b6 GM |
1722 | #ifdef HAVE_SOUND |
1723 | init_sound (); | |
1724 | #endif | |
75816372 | 1725 | init_window (); |
8bb697c0 | 1726 | |
f927c5ae JB |
1727 | if (!initialized) |
1728 | { | |
e2925360 | 1729 | char *file; |
7db35a48 | 1730 | /* Handle -l loadup, args passed by Makefile. */ |
df6530f8 | 1731 | if (argmatch (argv, argc, "-l", "--load", 3, &file, &skip_args)) |
f927c5ae | 1732 | Vtop_level = Fcons (intern ("load"), |
e2925360 | 1733 | Fcons (build_string (file), Qnil)); |
f927c5ae | 1734 | /* Unless next switch is -nl, load "loadup.el" first thing. */ |
956e3c7e | 1735 | if (! no_loadup) |
f927c5ae JB |
1736 | Vtop_level = Fcons (intern ("load"), |
1737 | Fcons (build_string ("loadup.el"), Qnil)); | |
f927c5ae JB |
1738 | } |
1739 | ||
93572b43 KH |
1740 | if (initialized) |
1741 | { | |
0269dedb RS |
1742 | #ifdef HAVE_TZSET |
1743 | { | |
1744 | /* If the execution TZ happens to be the same as the dump TZ, | |
1745 | change it to some other value and then change it back, | |
1746 | to force the underlying implementation to reload the TZ info. | |
1747 | This is needed on implementations that load TZ info from files, | |
1748 | since the TZ file contents may differ between dump and execution. */ | |
1749 | char *tz = getenv ("TZ"); | |
1750 | if (tz && !strcmp (tz, dump_tz)) | |
1751 | { | |
1752 | ++*tz; | |
1753 | tzset (); | |
1754 | --*tz; | |
1755 | } | |
1756 | } | |
1757 | #endif | |
93572b43 KH |
1758 | } |
1759 | ||
37a0ae84 GM |
1760 | /* Set up for profiling. This is known to work on FreeBSD and |
1761 | GNU/Linux. It might work on some other systems too. Give it a | |
1762 | try and tell us if it works on your system. To compile for | |
7db35a48 | 1763 | profiling use something like `make CFLAGS="-pg -g -O -DPROFILING=1'. */ |
6a97197e | 1764 | #if defined (__FreeBSD__) || defined (__linux) |
e610ea43 RS |
1765 | #ifdef PROFILING |
1766 | if (initialized) | |
1767 | { | |
7db35a48 | 1768 | extern void _mcleanup (); |
e610ea43 | 1769 | extern char etext; |
90d920b6 | 1770 | extern void safe_bcopy (); |
67a5596f GM |
1771 | extern void dump_opcode_frequencies (); |
1772 | ||
e610ea43 | 1773 | atexit (_mcleanup); |
90d920b6 GM |
1774 | /* This uses safe_bcopy because that function comes first in the |
1775 | Emacs executable. It might be better to use something that | |
1776 | gives the start of the text segment, but start_of_text is not | |
1777 | defined on all systems now. */ | |
1778 | monstartup (safe_bcopy, &etext); | |
e610ea43 RS |
1779 | } |
1780 | else | |
1781 | moncontrol (0); | |
1782 | #endif | |
1783 | #endif | |
1784 | ||
f927c5ae JB |
1785 | initialized = 1; |
1786 | ||
e7536cff RS |
1787 | #ifdef LOCALTIME_CACHE |
1788 | /* Some versions of localtime have a bug. They cache the value of the time | |
279cc2b8 JB |
1789 | zone rather than looking it up every time. Since localtime() is |
1790 | called to bolt the undumping time into the undumped emacs, this | |
afe9fae9 | 1791 | results in localtime ignoring the TZ environment variable. |
7db35a48 | 1792 | This flushes the new TZ value into localtime. */ |
afe9fae9 | 1793 | tzset (); |
e7536cff | 1794 | #endif /* defined (LOCALTIME_CACHE) */ |
279cc2b8 | 1795 | |
f927c5ae JB |
1796 | /* Enter editor command loop. This never returns. */ |
1797 | Frecursive_edit (); | |
1798 | /* NOTREACHED */ | |
6bbd7a29 | 1799 | return 0; |
f927c5ae JB |
1800 | } |
1801 | \f | |
081bef73 RS |
1802 | /* Sort the args so we can find the most important ones |
1803 | at the beginning of argv. */ | |
1804 | ||
1805 | /* First, here's a table of all the standard options. */ | |
1806 | ||
1807 | struct standard_args | |
1808 | { | |
1809 | char *name; | |
1810 | char *longname; | |
1811 | int priority; | |
1812 | int nargs; | |
1813 | }; | |
1814 | ||
1815 | struct standard_args standard_args[] = | |
1816 | { | |
05922407 RS |
1817 | { "-version", "--version", 150, 0 }, |
1818 | #ifdef HAVE_SHM | |
1819 | { "-nl", "--no-shared-memory", 140, 0 }, | |
1820 | #endif | |
2725719a | 1821 | #ifdef VMS |
05922407 | 1822 | { "-map", "--map-data", 130, 0 }, |
2725719a | 1823 | #endif |
05922407 | 1824 | { "-t", "--terminal", 120, 1 }, |
400d6fa9 | 1825 | { "-nw", "--no-window-system", 110, 0 }, |
05922407 RS |
1826 | { "-nw", "--no-windows", 110, 0 }, |
1827 | { "-batch", "--batch", 100, 0 }, | |
6e910e07 | 1828 | { "-script", "--script", 100, 1 }, |
05922407 | 1829 | { "-help", "--help", 90, 0 }, |
956e3c7e RS |
1830 | { "-no-unibyte", "--no-unibyte", 83, 0 }, |
1831 | { "-multibyte", "--multibyte", 82, 0 }, | |
1832 | { "-unibyte", "--unibyte", 81, 0 }, | |
1833 | { "-no-multibyte", "--no-multibyte", 80, 0 }, | |
956e3c7e | 1834 | { "-nl", "--no-loadup", 70, 0 }, |
956e3c7e RS |
1835 | /* -d must come last before the options handled in startup.el. */ |
1836 | { "-d", "--display", 60, 1 }, | |
1837 | { "-display", 0, 60, 1 }, | |
05922407 | 1838 | /* Now for the options handled in startup.el. */ |
a1716a57 RS |
1839 | { "-Q", "--quick", 55, 0 }, |
1840 | { "-quick", 0, 55, 0 }, | |
081bef73 RS |
1841 | { "-q", "--no-init-file", 50, 0 }, |
1842 | { "-no-init-file", 0, 50, 0 }, | |
1843 | { "-no-site-file", "--no-site-file", 40, 0 }, | |
af2bf12f | 1844 | { "-no-splash", "--no-splash", 40, 0 }, |
081bef73 RS |
1845 | { "-u", "--user", 30, 1 }, |
1846 | { "-user", 0, 30, 1 }, | |
1847 | { "-debug-init", "--debug-init", 20, 0 }, | |
f9e36a6d | 1848 | { "-nbi", "--no-bitmap-icon", 15, 0 }, |
f2bc3538 | 1849 | { "-iconic", "--iconic", 15, 0 }, |
a1716a57 | 1850 | { "-D", "--basic-display", 12, 0}, |
e09b9180 | 1851 | { "-basic-display", 0, 12, 0}, |
081bef73 RS |
1852 | { "-bg", "--background-color", 10, 1 }, |
1853 | { "-background", 0, 10, 1 }, | |
1854 | { "-fg", "--foreground-color", 10, 1 }, | |
1855 | { "-foreground", 0, 10, 1 }, | |
1856 | { "-bd", "--border-color", 10, 1 }, | |
1857 | { "-bw", "--border-width", 10, 1 }, | |
1858 | { "-ib", "--internal-border", 10, 1 }, | |
1859 | { "-ms", "--mouse-color", 10, 1 }, | |
1860 | { "-cr", "--cursor-color", 10, 1 }, | |
49ca717b | 1861 | { "-nbc", "--no-blinking-cursor", 10, 0 }, |
081bef73 RS |
1862 | { "-fn", "--font", 10, 1 }, |
1863 | { "-font", 0, 10, 1 }, | |
94452530 EZ |
1864 | { "-fs", "--fullscreen", 10, 0 }, |
1865 | { "-fw", "--fullwidth", 10, 0 }, | |
1866 | { "-fh", "--fullheight", 10, 0 }, | |
081bef73 RS |
1867 | { "-g", "--geometry", 10, 1 }, |
1868 | { "-geometry", 0, 10, 1 }, | |
1869 | { "-T", "--title", 10, 1 }, | |
ae63ae52 | 1870 | { "-title", 0, 10, 1 }, |
081bef73 RS |
1871 | { "-name", "--name", 10, 1 }, |
1872 | { "-xrm", "--xrm", 10, 1 }, | |
fcdeb5d9 RS |
1873 | { "-r", "--reverse-video", 5, 0 }, |
1874 | { "-rv", 0, 5, 0 }, | |
1875 | { "-reverse", 0, 5, 0 }, | |
ae63ae52 | 1876 | { "-hb", "--horizontal-scroll-bars", 5, 0 }, |
fcdeb5d9 | 1877 | { "-vb", "--vertical-scroll-bars", 5, 0 }, |
d20e1b1e | 1878 | { "-color", "--color", 5, 0}, |
fcdeb5d9 RS |
1879 | /* These have the same priority as ordinary file name args, |
1880 | so they are not reordered with respect to those. */ | |
4af9e0b3 RS |
1881 | { "-L", "--directory", 0, 1 }, |
1882 | { "-directory", 0, 0, 1 }, | |
fcdeb5d9 RS |
1883 | { "-l", "--load", 0, 1 }, |
1884 | { "-load", 0, 0, 1 }, | |
e09b9180 | 1885 | { "-scriptload", "--scriptload", 0, 1 }, |
fcdeb5d9 RS |
1886 | { "-f", "--funcall", 0, 1 }, |
1887 | { "-funcall", 0, 0, 1 }, | |
575985b1 | 1888 | { "-eval", "--eval", 0, 1 }, |
67a5596f | 1889 | { "-execute", "--execute", 0, 1 }, |
2e13f8e9 RS |
1890 | { "-find-file", "--find-file", 0, 1 }, |
1891 | { "-visit", "--visit", 0, 1 }, | |
67a5596f | 1892 | { "-file", "--file", 0, 1 }, |
fcdeb5d9 | 1893 | { "-insert", "--insert", 0, 1 }, |
f2bc3538 | 1894 | /* This should be processed after ordinary file name args and the like. */ |
fcdeb5d9 | 1895 | { "-kill", "--kill", -10, 0 }, |
081bef73 RS |
1896 | }; |
1897 | ||
1898 | /* Reorder the elements of ARGV (assumed to have ARGC elements) | |
1899 | so that the highest priority ones come first. | |
1900 | Do not change the order of elements of equal priority. | |
956e3c7e RS |
1901 | If an option takes an argument, keep it and its argument together. |
1902 | ||
1903 | If an option that takes no argument appears more | |
1904 | than once, eliminate all but one copy of it. */ | |
081bef73 RS |
1905 | |
1906 | static void | |
1907 | sort_args (argc, argv) | |
1908 | int argc; | |
1909 | char **argv; | |
1910 | { | |
1911 | char **new = (char **) xmalloc (sizeof (char *) * argc); | |
1912 | /* For each element of argv, | |
1913 | the corresponding element of options is: | |
1914 | 0 for an option that takes no arguments, | |
1915 | 1 for an option that takes one argument, etc. | |
1916 | -1 for an ordinary non-option argument. */ | |
6dad9359 | 1917 | int *options = (int *) xmalloc (sizeof (int) * argc); |
081bef73 RS |
1918 | int *priority = (int *) xmalloc (sizeof (int) * argc); |
1919 | int to = 1; | |
956e3c7e | 1920 | int incoming_used = 1; |
081bef73 RS |
1921 | int from; |
1922 | int i; | |
1923 | ||
1924 | /* Categorize all the options, | |
1925 | and figure out which argv elts are option arguments. */ | |
1926 | for (from = 1; from < argc; from++) | |
1927 | { | |
1928 | options[from] = -1; | |
fcdeb5d9 | 1929 | priority[from] = 0; |
081bef73 RS |
1930 | if (argv[from][0] == '-') |
1931 | { | |
1932 | int match, thislen; | |
1933 | char *equals; | |
1934 | ||
c96f26f4 RS |
1935 | /* If we have found "--", don't consider |
1936 | any more arguments as options. */ | |
249443b6 | 1937 | if (argv[from][1] == '-' && argv[from][2] == 0) |
c96f26f4 RS |
1938 | { |
1939 | /* Leave the "--", and everything following it, at the end. */ | |
1940 | for (; from < argc; from++) | |
1941 | { | |
1942 | priority[from] = -100; | |
1943 | options[from] = -1; | |
1944 | } | |
1945 | break; | |
1946 | } | |
1947 | ||
081bef73 RS |
1948 | /* Look for a match with a known old-fashioned option. */ |
1949 | for (i = 0; i < sizeof (standard_args) / sizeof (standard_args[0]); i++) | |
1950 | if (!strcmp (argv[from], standard_args[i].name)) | |
1951 | { | |
1952 | options[from] = standard_args[i].nargs; | |
1953 | priority[from] = standard_args[i].priority; | |
fd76ec52 RS |
1954 | if (from + standard_args[i].nargs >= argc) |
1955 | fatal ("Option `%s' requires an argument\n", argv[from]); | |
081bef73 RS |
1956 | from += standard_args[i].nargs; |
1957 | goto done; | |
1958 | } | |
1959 | ||
1960 | /* Look for a match with a known long option. | |
1961 | MATCH is -1 if no match so far, -2 if two or more matches so far, | |
1962 | >= 0 (the table index of the match) if just one match so far. */ | |
1963 | if (argv[from][1] == '-') | |
1964 | { | |
1965 | match = -1; | |
1966 | thislen = strlen (argv[from]); | |
1967 | equals = index (argv[from], '='); | |
1968 | if (equals != 0) | |
1969 | thislen = equals - argv[from]; | |
1970 | ||
f609ef57 KH |
1971 | for (i = 0; |
1972 | i < sizeof (standard_args) / sizeof (standard_args[0]); i++) | |
1973 | if (standard_args[i].longname | |
1974 | && !strncmp (argv[from], standard_args[i].longname, | |
1975 | thislen)) | |
081bef73 RS |
1976 | { |
1977 | if (match == -1) | |
1978 | match = i; | |
1979 | else | |
1980 | match = -2; | |
1981 | } | |
1982 | ||
1983 | /* If we found exactly one match, use that. */ | |
1984 | if (match >= 0) | |
1985 | { | |
1986 | options[from] = standard_args[match].nargs; | |
1987 | priority[from] = standard_args[match].priority; | |
1988 | /* If --OPTION=VALUE syntax is used, | |
1989 | this option uses just one argv element. */ | |
1990 | if (equals != 0) | |
1991 | options[from] = 0; | |
fd76ec52 RS |
1992 | if (from + options[from] >= argc) |
1993 | fatal ("Option `%s' requires an argument\n", argv[from]); | |
081bef73 RS |
1994 | from += options[from]; |
1995 | } | |
1996 | } | |
1997 | done: ; | |
1998 | } | |
1999 | } | |
2000 | ||
2001 | /* Copy the arguments, in order of decreasing priority, to NEW. */ | |
2002 | new[0] = argv[0]; | |
956e3c7e | 2003 | while (incoming_used < argc) |
081bef73 RS |
2004 | { |
2005 | int best = -1; | |
2c70c992 | 2006 | int best_priority = -9999; |
081bef73 RS |
2007 | |
2008 | /* Find the highest priority remaining option. | |
2009 | If several have equal priority, take the first of them. */ | |
2010 | for (from = 1; from < argc; from++) | |
2011 | { | |
2012 | if (argv[from] != 0 && priority[from] > best_priority) | |
2013 | { | |
2014 | best_priority = priority[from]; | |
2015 | best = from; | |
2016 | } | |
2017 | /* Skip option arguments--they are tied to the options. */ | |
2018 | if (options[from] > 0) | |
2019 | from += options[from]; | |
2020 | } | |
7db35a48 | 2021 | |
081bef73 RS |
2022 | if (best < 0) |
2023 | abort (); | |
2024 | ||
956e3c7e RS |
2025 | /* Copy the highest priority remaining option, with its args, to NEW. |
2026 | Unless it is a duplicate of the previous one. */ | |
2027 | if (! (options[best] == 0 | |
2028 | && ! strcmp (new[to - 1], argv[best]))) | |
2029 | { | |
2030 | new[to++] = argv[best]; | |
2031 | for (i = 0; i < options[best]; i++) | |
2032 | new[to++] = argv[best + i + 1]; | |
2033 | } | |
2034 | ||
2035 | incoming_used += 1 + (options[best] > 0 ? options[best] : 0); | |
081bef73 RS |
2036 | |
2037 | /* Clear out this option in ARGV. */ | |
2038 | argv[best] = 0; | |
2039 | for (i = 0; i < options[best]; i++) | |
2040 | argv[best + i + 1] = 0; | |
2041 | } | |
2042 | ||
81b7af72 RS |
2043 | /* If duplicate options were deleted, fill up extra space with null ptrs. */ |
2044 | while (to < argc) | |
2045 | new[to++] = 0; | |
2046 | ||
6dad9359 | 2047 | bcopy (new, argv, sizeof (char *) * argc); |
0bf591da | 2048 | |
68db37aa KS |
2049 | xfree (options); |
2050 | xfree (new); | |
2051 | xfree (priority); | |
081bef73 RS |
2052 | } |
2053 | \f | |
f927c5ae | 2054 | DEFUN ("kill-emacs", Fkill_emacs, Skill_emacs, 0, 1, "P", |
7db35a48 PJ |
2055 | doc: /* Exit the Emacs job and kill it. |
2056 | If ARG is an integer, return ARG as the exit program code. | |
2057 | If ARG is a string, stuff it as keyboard input. | |
2058 | ||
2059 | The value of `kill-emacs-hook', if not void, | |
2060 | is a list of functions (of no args), | |
2061 | all of which are called before Emacs is actually killed. */) | |
2062 | (arg) | |
f927c5ae JB |
2063 | Lisp_Object arg; |
2064 | { | |
f927c5ae JB |
2065 | struct gcpro gcpro1; |
2066 | ||
2067 | GCPRO1 (arg); | |
2068 | ||
2069 | if (feof (stdin)) | |
2070 | arg = Qt; | |
2071 | ||
2447c626 | 2072 | if (!NILP (Vrun_hooks) && !noninteractive) |
f927c5ae JB |
2073 | call1 (Vrun_hooks, intern ("kill-emacs-hook")); |
2074 | ||
f927c5ae JB |
2075 | UNGCPRO; |
2076 | ||
2077 | /* Is it really necessary to do this deassign | |
2078 | when we are going to exit anyway? */ | |
2079 | /* #ifdef VMS | |
2080 | stop_vms_input (); | |
2081 | #endif */ | |
40be253a | 2082 | |
d0068e25 | 2083 | shut_down_emacs (0, 0, STRINGP (arg) ? arg : Qnil); |
40be253a | 2084 | |
58545838 KH |
2085 | /* If we have an auto-save list file, |
2086 | kill it because we are exiting Emacs deliberately (not crashing). | |
2087 | Do it after shut_down_emacs, which does an auto-save. */ | |
2088 | if (STRINGP (Vauto_save_list_file_name)) | |
d5db4077 | 2089 | unlink (SDATA (Vauto_save_list_file_name)); |
58545838 | 2090 | |
fa439170 | 2091 | exit (INTEGERP (arg) ? XINT (arg) : EXIT_SUCCESS); |
f927c5ae | 2092 | /* NOTREACHED */ |
f1145b54 | 2093 | return Qnil; |
f927c5ae | 2094 | } |
40be253a JB |
2095 | |
2096 | ||
2097 | /* Perform an orderly shutdown of Emacs. Autosave any modified | |
2098 | buffers, kill any child processes, clean up the terminal modes (if | |
2099 | we're in the foreground), and other stuff like that. Don't perform | |
2100 | any redisplay; this may be called when Emacs is shutting down in | |
2101 | the background, or after its X connection has died. | |
2102 | ||
2103 | If SIG is a signal number, print a message for it. | |
2104 | ||
2105 | This is called by fatal signal handlers, X protocol error handlers, | |
2106 | and Fkill_emacs. */ | |
f7ab4e3d | 2107 | |
40be253a | 2108 | void |
f7ab4e3d | 2109 | shut_down_emacs (sig, no_x, stuff) |
41423a80 | 2110 | int sig, no_x; |
f7ab4e3d | 2111 | Lisp_Object stuff; |
40be253a | 2112 | { |
829d872b RS |
2113 | /* Prevent running of hooks from now on. */ |
2114 | Vrun_hooks = Qnil; | |
2115 | ||
9db03f6c KS |
2116 | /* Don't update display from now on. */ |
2117 | Vinhibit_redisplay = Qt; | |
2118 | ||
7db35a48 | 2119 | /* If we are controlling the terminal, reset terminal modes. */ |
40be253a JB |
2120 | #ifdef EMACS_HAVE_TTY_PGRP |
2121 | { | |
d04d81d2 RS |
2122 | int pgrp = EMACS_GETPGRP (0); |
2123 | ||
40be253a JB |
2124 | int tpgrp; |
2125 | if (EMACS_GET_TTY_PGRP (0, &tpgrp) != -1 | |
5a570e37 | 2126 | && tpgrp == pgrp) |
40be253a JB |
2127 | { |
2128 | fflush (stdout); | |
2129 | reset_sys_modes (); | |
2130 | if (sig && sig != SIGTERM) | |
6b61353c | 2131 | fprintf (stderr, "Fatal error (%d)", sig); |
40be253a JB |
2132 | } |
2133 | } | |
2134 | #else | |
2135 | fflush (stdout); | |
2136 | reset_sys_modes (); | |
2137 | #endif | |
2138 | ||
f7ab4e3d RS |
2139 | stuff_buffered_input (stuff); |
2140 | ||
40be253a JB |
2141 | kill_buffer_processes (Qnil); |
2142 | Fdo_auto_save (Qt, Qnil); | |
2143 | ||
2144 | #ifdef CLASH_DETECTION | |
2145 | unlock_all_files (); | |
2146 | #endif | |
2147 | ||
2148 | #ifdef VMS | |
2149 | kill_vms_processes (); | |
2150 | #endif | |
2151 | ||
5e7f8733 | 2152 | #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */ |
41423a80 | 2153 | #ifdef HAVE_X_WINDOWS |
f7511647 RS |
2154 | /* It's not safe to call intern here. Maybe we are crashing. */ |
2155 | if (!noninteractive && SYMBOLP (Vwindow_system) | |
d5db4077 KR |
2156 | && SCHARS (SYMBOL_NAME (Vwindow_system)) == 1 |
2157 | && SREF (SYMBOL_NAME (Vwindow_system), 0) == 'x' | |
f7511647 | 2158 | && ! no_x) |
41423a80 RS |
2159 | Fx_close_current_connection (); |
2160 | #endif /* HAVE_X_WINDOWS */ | |
5e7f8733 | 2161 | #endif |
41423a80 | 2162 | |
40be253a JB |
2163 | #ifdef SIGIO |
2164 | /* There is a tendency for a SIGIO signal to arrive within exit, | |
2165 | and cause a SIGHUP because the input descriptor is already closed. */ | |
2166 | unrequest_sigio (); | |
2167 | signal (SIGIO, SIG_IGN); | |
2168 | #endif | |
41f339d4 RS |
2169 | |
2170 | #ifdef WINDOWSNT | |
2171 | term_ntproc (); | |
2172 | #endif | |
d546e578 | 2173 | |
cd8d4168 GM |
2174 | /* Do this only if terminating normally, we want glyph matrices |
2175 | etc. in a core dump. */ | |
200f868e | 2176 | if (sig == 0 || sig == SIGTERM) |
cd8d4168 GM |
2177 | { |
2178 | check_glyph_memory (); | |
2179 | check_message_stack (); | |
2180 | } | |
90d920b6 | 2181 | |
d546e578 EZ |
2182 | #ifdef MSDOS |
2183 | dos_cleanup (); | |
2184 | #endif | |
40be253a JB |
2185 | } |
2186 | ||
2187 | ||
f927c5ae JB |
2188 | \f |
2189 | #ifndef CANNOT_DUMP | |
f927c5ae JB |
2190 | |
2191 | #ifdef HAVE_SHM | |
2192 | ||
2193 | DEFUN ("dump-emacs-data", Fdump_emacs_data, Sdump_emacs_data, 1, 1, 0, | |
7db35a48 PJ |
2194 | doc: /* Dump current state of Emacs into data file FILENAME. |
2195 | This function exists on systems that use HAVE_SHM. */) | |
2196 | (filename) | |
c9aae259 | 2197 | Lisp_Object filename; |
f927c5ae | 2198 | { |
55697f5b | 2199 | extern char my_edata[]; |
f927c5ae | 2200 | Lisp_Object tem; |
f927c5ae | 2201 | |
4fab758d | 2202 | check_pure_size (); |
b7826503 | 2203 | CHECK_STRING (filename); |
c9aae259 | 2204 | filename = Fexpand_file_name (filename, Qnil); |
f927c5ae JB |
2205 | |
2206 | tem = Vpurify_flag; | |
2207 | Vpurify_flag = Qnil; | |
2208 | ||
2209 | fflush (stdout); | |
7db35a48 | 2210 | /* Tell malloc where start of impure now is. */ |
f927c5ae JB |
2211 | /* Also arrange for warnings when nearly out of space. */ |
2212 | #ifndef SYSTEM_MALLOC | |
1090a161 | 2213 | memory_warnings (my_edata, malloc_warning); |
f927c5ae | 2214 | #endif |
d5db4077 | 2215 | map_out_data (SDATA (filename)); |
f927c5ae JB |
2216 | |
2217 | Vpurify_flag = tem; | |
2218 | ||
2219 | return Qnil; | |
2220 | } | |
2221 | ||
2222 | #else /* not HAVE_SHM */ | |
2223 | ||
2224 | DEFUN ("dump-emacs", Fdump_emacs, Sdump_emacs, 2, 2, 0, | |
7db35a48 PJ |
2225 | doc: /* Dump current state of Emacs into executable file FILENAME. |
2226 | Take symbols from SYMFILE (presumably the file you executed to run Emacs). | |
2227 | This is used in the file `loadup.el' when building Emacs. | |
2228 | ||
2229 | You must run Emacs in batch mode in order to dump it. */) | |
2230 | (filename, symfile) | |
c9aae259 | 2231 | Lisp_Object filename, symfile; |
f927c5ae | 2232 | { |
55697f5b | 2233 | extern char my_edata[]; |
f927c5ae | 2234 | Lisp_Object tem; |
1b7ddf4f | 2235 | Lisp_Object symbol; |
331379bf | 2236 | int count = SPECPDL_INDEX (); |
4fab758d GM |
2237 | |
2238 | check_pure_size (); | |
f927c5ae | 2239 | |
87a98b1a RS |
2240 | if (! noninteractive) |
2241 | error ("Dumping Emacs works only in batch mode"); | |
2242 | ||
c37caf9d | 2243 | #ifdef __linux__ |
dede2792 JD |
2244 | if (heap_bss_diff > MAX_HEAP_BSS_DIFF) |
2245 | { | |
2246 | fprintf (stderr, "**************************************************\n"); | |
2247 | fprintf (stderr, "Warning: Your system has a gap between BSS and the\n"); | |
9b33d596 | 2248 | fprintf (stderr, "heap (%lu byte). This usually means that exec-shield\n", |
c37caf9d JD |
2249 | heap_bss_diff); |
2250 | fprintf (stderr, "or something similar is in effect. The dump may\n"); | |
2251 | fprintf (stderr, "fail because of this. See the section about \n"); | |
2252 | fprintf (stderr, "exec-shield in etc/PROBLEMS for more information.\n"); | |
dede2792 JD |
2253 | fprintf (stderr, "**************************************************\n"); |
2254 | } | |
c37caf9d | 2255 | #endif /* __linux__ */ |
dede2792 | 2256 | |
1b7ddf4f RS |
2257 | /* Bind `command-line-processed' to nil before dumping, |
2258 | so that the dumped Emacs will process its command line | |
2259 | and set up to work with X windows if appropriate. */ | |
4aaa3607 | 2260 | symbol = intern ("command-line-processed"); |
1b7ddf4f RS |
2261 | specbind (symbol, Qnil); |
2262 | ||
b7826503 | 2263 | CHECK_STRING (filename); |
c9aae259 EN |
2264 | filename = Fexpand_file_name (filename, Qnil); |
2265 | if (!NILP (symfile)) | |
f927c5ae | 2266 | { |
b7826503 | 2267 | CHECK_STRING (symfile); |
d5db4077 | 2268 | if (SCHARS (symfile)) |
c9aae259 | 2269 | symfile = Fexpand_file_name (symfile, Qnil); |
f927c5ae JB |
2270 | } |
2271 | ||
2272 | tem = Vpurify_flag; | |
2273 | Vpurify_flag = Qnil; | |
2274 | ||
0269dedb RS |
2275 | #ifdef HAVE_TZSET |
2276 | set_time_zone_rule (dump_tz); | |
2277 | #ifndef LOCALTIME_CACHE | |
2278 | /* Force a tz reload, since set_time_zone_rule doesn't. */ | |
2279 | tzset (); | |
2280 | #endif | |
2281 | #endif | |
2282 | ||
f927c5ae JB |
2283 | fflush (stdout); |
2284 | #ifdef VMS | |
d5db4077 | 2285 | mapout_data (SDATA (filename)); |
f927c5ae | 2286 | #else |
7db35a48 | 2287 | /* Tell malloc where start of impure now is. */ |
f927c5ae JB |
2288 | /* Also arrange for warnings when nearly out of space. */ |
2289 | #ifndef SYSTEM_MALLOC | |
cc5f52cb RS |
2290 | #ifndef WINDOWSNT |
2291 | /* On Windows, this was done before dumping, and that once suffices. | |
2292 | Meanwhile, my_edata is not valid on Windows. */ | |
cb37cf78 | 2293 | memory_warnings (my_edata, malloc_warning); |
cc5f52cb | 2294 | #endif /* not WINDOWSNT */ |
15aaf1b5 | 2295 | #endif |
06ca62eb | 2296 | #if !defined (SYSTEM_MALLOC) && defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT |
aa477689 JD |
2297 | /* Pthread may call malloc before main, and then we will get an endless |
2298 | loop, because pthread_self (see alloc.c) calls malloc the first time | |
2299 | it is called on some systems. */ | |
2300 | reset_malloc_hooks (); | |
2301 | #endif | |
15aaf1b5 RS |
2302 | #ifdef DOUG_LEA_MALLOC |
2303 | malloc_state_ptr = malloc_get_state (); | |
f927c5ae | 2304 | #endif |
2b7377ca | 2305 | |
a74c5ec1 | 2306 | #ifdef USE_MMAP_FOR_BUFFERS |
2b7377ca GM |
2307 | mmap_set_vars (0); |
2308 | #endif | |
d5db4077 KR |
2309 | unexec (SDATA (filename), |
2310 | !NILP (symfile) ? SDATA (symfile) : 0, my_edata, 0, 0); | |
a74c5ec1 | 2311 | #ifdef USE_MMAP_FOR_BUFFERS |
2b7377ca GM |
2312 | mmap_set_vars (1); |
2313 | #endif | |
15aaf1b5 RS |
2314 | #ifdef DOUG_LEA_MALLOC |
2315 | free (malloc_state_ptr); | |
2316 | #endif | |
f927c5ae JB |
2317 | #endif /* not VMS */ |
2318 | ||
2319 | Vpurify_flag = tem; | |
2320 | ||
1b7ddf4f | 2321 | return unbind_to (count, Qnil); |
f927c5ae JB |
2322 | } |
2323 | ||
2324 | #endif /* not HAVE_SHM */ | |
2325 | ||
2326 | #endif /* not CANNOT_DUMP */ | |
2327 | \f | |
68c45bf0 PE |
2328 | #if HAVE_SETLOCALE |
2329 | /* Recover from setlocale (LC_ALL, ""). */ | |
2330 | void | |
2331 | fixup_locale () | |
2332 | { | |
68c45bf0 PE |
2333 | /* The Emacs Lisp reader needs LC_NUMERIC to be "C", |
2334 | so that numbers are read and printed properly for Emacs Lisp. */ | |
2335 | setlocale (LC_NUMERIC, "C"); | |
68c45bf0 PE |
2336 | } |
2337 | ||
0c8559bb PE |
2338 | /* Set system locale CATEGORY, with previous locale *PLOCALE, to |
2339 | DESIRED_LOCALE. */ | |
68c45bf0 PE |
2340 | static void |
2341 | synchronize_locale (category, plocale, desired_locale) | |
2342 | int category; | |
2343 | Lisp_Object *plocale; | |
2344 | Lisp_Object desired_locale; | |
2345 | { | |
0c8559bb PE |
2346 | if (! EQ (*plocale, desired_locale)) |
2347 | { | |
2348 | *plocale = desired_locale; | |
2349 | setlocale (category, (STRINGP (desired_locale) | |
3b6536b1 | 2350 | ? (char *) SDATA (desired_locale) |
0c8559bb PE |
2351 | : "")); |
2352 | } | |
68c45bf0 PE |
2353 | } |
2354 | ||
ca9c0567 | 2355 | /* Set system time locale to match Vsystem_time_locale, if possible. */ |
68c45bf0 | 2356 | void |
ca9c0567 | 2357 | synchronize_system_time_locale () |
68c45bf0 | 2358 | { |
ca9c0567 PE |
2359 | synchronize_locale (LC_TIME, &Vprevious_system_time_locale, |
2360 | Vsystem_time_locale); | |
68c45bf0 PE |
2361 | } |
2362 | ||
ca9c0567 PE |
2363 | /* Set system messages locale to match Vsystem_messages_locale, if |
2364 | possible. */ | |
68c45bf0 | 2365 | void |
ca9c0567 | 2366 | synchronize_system_messages_locale () |
68c45bf0 PE |
2367 | { |
2368 | #ifdef LC_MESSAGES | |
ca9c0567 PE |
2369 | synchronize_locale (LC_MESSAGES, &Vprevious_system_messages_locale, |
2370 | Vsystem_messages_locale); | |
68c45bf0 PE |
2371 | #endif |
2372 | } | |
2373 | #endif /* HAVE_SETLOCALE */ | |
2374 | \f | |
4b163808 | 2375 | #ifndef SEPCHAR |
f927c5ae JB |
2376 | #define SEPCHAR ':' |
2377 | #endif | |
2378 | ||
2379 | Lisp_Object | |
2380 | decode_env_path (evarname, defalt) | |
2381 | char *evarname, *defalt; | |
2382 | { | |
2383 | register char *path, *p; | |
213d0b1f | 2384 | Lisp_Object lpath, element, tem; |
f927c5ae | 2385 | |
2447c626 JB |
2386 | /* It's okay to use getenv here, because this function is only used |
2387 | to initialize variables when Emacs starts up, and isn't called | |
2388 | after that. */ | |
e065a56e JB |
2389 | if (evarname != 0) |
2390 | path = (char *) getenv (evarname); | |
2391 | else | |
2392 | path = 0; | |
f927c5ae JB |
2393 | if (!path) |
2394 | path = defalt; | |
6a30e6d6 RS |
2395 | #ifdef DOS_NT |
2396 | /* Ensure values from the environment use the proper directory separator. */ | |
2397 | if (path) | |
2398 | { | |
2399 | p = alloca (strlen (path) + 1); | |
2400 | strcpy (p, path); | |
2401 | path = p; | |
2402 | ||
2403 | if ('/' == DIRECTORY_SEP) | |
2404 | dostounix_filename (path); | |
2405 | else | |
2406 | unixtodos_filename (path); | |
2407 | } | |
2408 | #endif | |
f927c5ae JB |
2409 | lpath = Qnil; |
2410 | while (1) | |
2411 | { | |
2412 | p = index (path, SEPCHAR); | |
2413 | if (!p) p = path + strlen (path); | |
213d0b1f RS |
2414 | element = (p - path ? make_string (path, p - path) |
2415 | : build_string (".")); | |
2416 | ||
2417 | /* Add /: to the front of the name | |
2418 | if it would otherwise be treated as magic. */ | |
2419 | tem = Ffind_file_name_handler (element, Qt); | |
ca3df2d5 RS |
2420 | |
2421 | /* However, if the handler says "I'm safe", | |
2422 | don't bother adding /:. */ | |
2423 | if (SYMBOLP (tem)) | |
2424 | { | |
2425 | Lisp_Object prop; | |
2426 | prop = Fget (tem, intern ("safe-magic")); | |
2427 | if (! NILP (prop)) | |
2428 | tem = Qnil; | |
2429 | } | |
2430 | ||
213d0b1f RS |
2431 | if (! NILP (tem)) |
2432 | element = concat2 (build_string ("/:"), element); | |
2433 | ||
2434 | lpath = Fcons (element, lpath); | |
f927c5ae JB |
2435 | if (*p) |
2436 | path = p + 1; | |
2437 | else | |
2438 | break; | |
2439 | } | |
2440 | return Fnreverse (lpath); | |
2441 | } | |
2442 | ||
dfcf069d | 2443 | void |
f927c5ae JB |
2444 | syms_of_emacs () |
2445 | { | |
213d0b1f RS |
2446 | Qfile_name_handler_alist = intern ("file-name-handler-alist"); |
2447 | staticpro (&Qfile_name_handler_alist); | |
2448 | ||
83591e66 | 2449 | #ifndef CANNOT_DUMP |
f927c5ae JB |
2450 | #ifdef HAVE_SHM |
2451 | defsubr (&Sdump_emacs_data); | |
2452 | #else | |
2453 | defsubr (&Sdump_emacs); | |
83591e66 | 2454 | #endif |
f927c5ae JB |
2455 | #endif |
2456 | ||
2457 | defsubr (&Skill_emacs); | |
2458 | ||
59653951 | 2459 | defsubr (&Sinvocation_name); |
ace40a69 | 2460 | defsubr (&Sinvocation_directory); |
59653951 | 2461 | |
f927c5ae | 2462 | DEFVAR_LISP ("command-line-args", &Vcommand_line_args, |
2a9d2ed6 RS |
2463 | doc: /* Args passed by shell to Emacs, as a list of strings. |
2464 | Many arguments are deleted from the list as they are processed. */); | |
f927c5ae JB |
2465 | |
2466 | DEFVAR_LISP ("system-type", &Vsystem_type, | |
40a8993a NR |
2467 | doc: /* Value is symbol indicating type of operating system you are using. |
2468 | Special values: | |
2469 | `gnu/linux' compiled for a GNU/Linux system. | |
2470 | `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...). | |
2471 | `macos' compiled for Mac OS 9. | |
2472 | `ms-dos' compiled as an MS-DOS application. | |
2473 | `windows-nt' compiled as a native W32 application. | |
2474 | `cygwin' compiled using the Cygwin library. | |
2475 | `vax-vms' or `axp-vms': compiled for a (Open)VMS system. | |
2476 | Anything else indicates some sort of Unix system. */); | |
f927c5ae JB |
2477 | Vsystem_type = intern (SYSTEM_TYPE); |
2478 | ||
271c7b7c | 2479 | DEFVAR_LISP ("system-configuration", &Vsystem_configuration, |
7db35a48 PJ |
2480 | doc: /* Value is string indicating configuration Emacs was built for. |
2481 | On MS-Windows, the value reflects the OS flavor and version on which | |
2482 | Emacs is running. */); | |
f7511647 | 2483 | Vsystem_configuration = build_string (EMACS_CONFIGURATION); |
271c7b7c | 2484 | |
f0fc0b1a | 2485 | DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options, |
7db35a48 | 2486 | doc: /* String containing the configuration options Emacs was built with. */); |
f0fc0b1a KH |
2487 | Vsystem_configuration_options = build_string (EMACS_CONFIG_OPTIONS); |
2488 | ||
f927c5ae | 2489 | DEFVAR_BOOL ("noninteractive", &noninteractive1, |
7db35a48 | 2490 | doc: /* Non-nil means Emacs is running without interactive terminal. */); |
e5d77022 | 2491 | |
e5d77022 | 2492 | DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook, |
d77b70e5 MR |
2493 | doc: /* Hook to be run when kill-emacs is called. |
2494 | Since `kill-emacs' may be invoked when the terminal is disconnected (or | |
7db35a48 PJ |
2495 | in other similar situations), functions placed on this hook should not |
2496 | expect to be able to interact with the user. To ask for confirmation, | |
d77b70e5 MR |
2497 | see `kill-emacs-query-functions' instead. |
2498 | ||
2499 | The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */); | |
edc8ae07 | 2500 | Vkill_emacs_hook = Qnil; |
3005da00 | 2501 | |
f9a6326d SM |
2502 | empty_string = build_string (""); |
2503 | staticpro (&empty_string); | |
2504 | ||
3005da00 | 2505 | DEFVAR_INT ("emacs-priority", &emacs_priority, |
7db35a48 PJ |
2506 | doc: /* Priority for Emacs to run at. |
2507 | This value is effective only if set before Emacs is dumped, | |
2508 | and only if the Emacs executable is installed with setuid to permit | |
2509 | it to change priority. (Emacs sets its uid back to the real uid.) | |
2510 | Currently, you need to define SET_EMACS_PRIORITY in `config.h' | |
2511 | before you compile Emacs, to enable the code for this feature. */); | |
e7a9e1c3 | 2512 | emacs_priority = 0; |
074a066b GV |
2513 | |
2514 | DEFVAR_LISP ("path-separator", &Vpath_separator, | |
ddb67bdc | 2515 | doc: /* The directory separator in search paths, as a string. */); |
074a066b GV |
2516 | { |
2517 | char c = SEPCHAR; | |
2518 | Vpath_separator = make_string (&c, 1); | |
2519 | } | |
59653951 | 2520 | |
f67de86f | 2521 | DEFVAR_LISP ("invocation-name", &Vinvocation_name, |
7db35a48 PJ |
2522 | doc: /* The program name that was used to run Emacs. |
2523 | Any directory names are omitted. */); | |
f67de86f RS |
2524 | |
2525 | DEFVAR_LISP ("invocation-directory", &Vinvocation_directory, | |
7db35a48 PJ |
2526 | doc: /* The directory in which the Emacs executable was found, to run it. |
2527 | The value is nil if that directory's name is not known. */); | |
f67de86f RS |
2528 | |
2529 | DEFVAR_LISP ("installation-directory", &Vinstallation_directory, | |
7db35a48 PJ |
2530 | doc: /* A directory within which to look for the `lib-src' and `etc' directories. |
2531 | This is non-nil when we can't find those directories in their standard | |
2532 | installed locations, but we can find them | |
2533 | near where the Emacs executable was found. */); | |
07f4d123 | 2534 | Vinstallation_directory = Qnil; |
68c45bf0 | 2535 | |
ca9c0567 | 2536 | DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale, |
7db35a48 | 2537 | doc: /* System locale for messages. */); |
ca9c0567 | 2538 | Vsystem_messages_locale = Qnil; |
68c45bf0 | 2539 | |
ca9c0567 | 2540 | DEFVAR_LISP ("previous-system-messages-locale", |
7db35a48 PJ |
2541 | &Vprevious_system_messages_locale, |
2542 | doc: /* Most recently used system locale for messages. */); | |
ca9c0567 | 2543 | Vprevious_system_messages_locale = Qnil; |
68c45bf0 | 2544 | |
ca9c0567 | 2545 | DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale, |
7db35a48 | 2546 | doc: /* System locale for time. */); |
ca9c0567 | 2547 | Vsystem_time_locale = Qnil; |
68c45bf0 | 2548 | |
ca9c0567 | 2549 | DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale, |
7db35a48 | 2550 | doc: /* Most recently used system locale for time. */); |
ca9c0567 | 2551 | Vprevious_system_time_locale = Qnil; |
f927c5ae | 2552 | } |
6b61353c KH |
2553 | |
2554 | /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e | |
2555 | (do not change this comment) */ |