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, |
ea8c20e0 GM |
3 | 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 |
4 | Free Software Foundation, Inc. | |
f927c5ae JB |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
9ec0b715 | 8 | GNU Emacs is free software: you can redistribute it and/or modify |
f927c5ae | 9 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
10 | the Free Software Foundation, either version 3 of the License, or |
11 | (at your option) any later version. | |
f927c5ae JB |
12 | |
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 19 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
f927c5ae JB |
20 | |
21 | ||
68c45bf0 | 22 | #include <config.h> |
f927c5ae JB |
23 | #include <signal.h> |
24 | #include <errno.h> | |
f927c5ae JB |
25 | #include <stdio.h> |
26 | ||
27 | #include <sys/types.h> | |
28 | #include <sys/file.h> | |
29 | ||
30 | #ifdef VMS | |
31 | #include <ssdef.h> | |
32 | #endif | |
33 | ||
cda4a5fd GM |
34 | #ifdef HAVE_UNISTD_H |
35 | #include <unistd.h> | |
36 | #endif | |
37 | ||
488b7cb3 | 38 | #ifdef BSD_SYSTEM |
f927c5ae JB |
39 | #include <sys/ioctl.h> |
40 | #endif | |
41 | ||
edd3ff1d JR |
42 | #ifdef WINDOWSNT |
43 | #include <fcntl.h> | |
52c7f9ee JR |
44 | #include <windows.h> /* just for w32.h */ |
45 | #include "w32.h" | |
c68a2829 | 46 | #include "w32heap.h" /* for prototype of sbrk */ |
edd3ff1d JR |
47 | #endif |
48 | ||
f927c5ae JB |
49 | #include "lisp.h" |
50 | #include "commands.h" | |
bef79ee4 | 51 | #include "intervals.h" |
a08a816a | 52 | #include "buffer.h" |
3f6abfd7 | 53 | #include "window.h" |
f927c5ae | 54 | |
edc8ae07 | 55 | #include "systty.h" |
6c3a4e9d | 56 | #include "blockinput.h" |
8090eb09 | 57 | #include "syssignal.h" |
6c362a8b | 58 | #include "process.h" |
428a555e | 59 | #include "frame.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 | ||
7e9fa161 JB |
136 | /* Empty lisp strings. To avoid having to build any others. */ |
137 | Lisp_Object empty_unibyte_string, empty_multibyte_string; | |
f9a6326d | 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 |
2246281f | 217 | extern Lisp_Object Vinitial_window_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 | 282 | FILE visit FILE using find-file\n\ |
1dce1149 RS |
283 | +LINE go to line LINE in next FILE\n\ |
284 | +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\ | |
6b61353c KH |
285 | --directory, -L DIR add DIR to variable load-path\n\ |
286 | --eval EXPR evaluate Emacs Lisp expression EXPR\n\ | |
287 | --execute EXPR evaluate Emacs Lisp expression EXPR\n\ | |
288 | --file FILE visit FILE using find-file\n\ | |
289 | --find-file FILE visit FILE using find-file\n\ | |
290 | --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\ | |
291 | --insert FILE insert contents of FILE into current buffer\n\ | |
292 | --kill exit without asking for confirmation\n\ | |
293 | --load, -l FILE load Emacs Lisp FILE using the load function\n\ | |
294 | --visit FILE visit FILE using find-file\n\ | |
73ebcd25 AI |
295 | \n" |
296 | ||
6b61353c | 297 | #define USAGE3 "\ |
5b2ca26b | 298 | Display options:\n\ |
bd4590ba | 299 | \n\ |
6b61353c | 300 | --background-color, -bg COLOR window background color\n\ |
2ff86b4e NR |
301 | --basic-display, -D disable many display features;\n\ |
302 | used for debugging Emacs\n\ | |
6b61353c KH |
303 | --border-color, -bd COLOR main border color\n\ |
304 | --border-width, -bw WIDTH width of main border\n\ | |
ced74849 | 305 | --color, --color=MODE override color mode for character terminals;\n\ |
6b61353c KH |
306 | MODE defaults to `auto', and can also\n\ |
307 | be `never', `auto', `always',\n\ | |
308 | or a mode name like `ansi8'\n\ | |
309 | --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\ | |
310 | --font, -fn FONT default font; must be fixed-width\n\ | |
311 | --foreground-color, -fg COLOR window foreground color\n\ | |
312 | --fullheight, -fh make the first frame high as the screen\n\ | |
313 | --fullscreen, -fs make first frame fullscreen\n\ | |
314 | --fullwidth, -fw make the first frame wide as the screen\n\ | |
315 | --geometry, -g GEOMETRY window geometry\n\ | |
f9e36a6d | 316 | --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\ |
6b61353c KH |
317 | --iconic start Emacs in iconified state\n\ |
318 | --internal-border, -ib WIDTH width between text and main border\n\ | |
319 | --line-spacing, -lsp PIXELS additional space to put between lines\n\ | |
320 | --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\ | |
321 | --name NAME title for initial Emacs frame\n\ | |
49ca717b | 322 | --no-blinking-cursor, -nbc disable blinking cursor\n\ |
6b61353c KH |
323 | --reverse-video, -r, -rv switch foreground and background\n\ |
324 | --title, -T TITLE title for initial Emacs frame\n\ | |
325 | --vertical-scroll-bars, -vb enable vertical scroll bars\n\ | |
326 | --xrm XRESOURCES set additional X resources\n\ | |
1540a61a | 327 | --parent-id XID set parent window\n\ |
6b61353c KH |
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 | ||
3e9de9f6 YM |
355 | #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD |
356 | /* When compiled with GTK and running under Gnome, or Carbon under Mac | |
357 | OS X, multiple threads may be created. Keep track of our main | |
358 | thread to make sure signals are delivered to it (see syssignal.h). */ | |
333f1b6f JD |
359 | |
360 | pthread_t main_thread; | |
361 | #endif | |
362 | ||
4fab758d | 363 | |
7db35a48 | 364 | /* Handle bus errors, invalid instruction, etc. */ |
2447c626 | 365 | SIGTYPE |
f927c5ae JB |
366 | fatal_error_signal (sig) |
367 | int sig; | |
368 | { | |
333f1b6f | 369 | SIGNAL_THREAD_CHECK (sig); |
f927c5ae JB |
370 | fatal_error_code = sig; |
371 | signal (sig, SIG_DFL); | |
372 | ||
061b7f94 RS |
373 | TOTALLY_UNBLOCK_INPUT; |
374 | ||
f927c5ae | 375 | /* If fatal error occurs in code below, avoid infinite recursion. */ |
8090eb09 JB |
376 | if (! fatal_error_in_progress) |
377 | { | |
378 | fatal_error_in_progress = 1; | |
f927c5ae | 379 | |
f7ab4e3d | 380 | shut_down_emacs (sig, 0, Qnil); |
8090eb09 | 381 | } |
f927c5ae JB |
382 | |
383 | #ifdef VMS | |
f927c5ae JB |
384 | LIB$STOP (SS$_ABORT); |
385 | #else | |
8090eb09 JB |
386 | /* Signal the same code; this time it will really be fatal. |
387 | Remember that since we're in a signal handler, the signal we're | |
388 | going to send is probably blocked, so we have to unblock it if we | |
389 | want to really receive it. */ | |
29b89fe0 | 390 | #ifndef MSDOS |
a90538cb | 391 | sigunblock (sigmask (fatal_error_code)); |
29b89fe0 | 392 | #endif |
4fab758d GM |
393 | |
394 | if (fatal_error_signal_hook) | |
395 | fatal_error_signal_hook (); | |
7db35a48 | 396 | |
f927c5ae JB |
397 | kill (getpid (), fatal_error_code); |
398 | #endif /* not VMS */ | |
399 | } | |
271c7b7c RS |
400 | |
401 | #ifdef SIGDANGER | |
402 | ||
16c323ee | 403 | /* Handler for SIGDANGER. */ |
271c7b7c RS |
404 | SIGTYPE |
405 | memory_warning_signal (sig) | |
406 | int sig; | |
407 | { | |
408 | signal (sig, memory_warning_signal); | |
333f1b6f | 409 | SIGNAL_THREAD_CHECK (sig); |
271c7b7c RS |
410 | |
411 | malloc_warning ("Operating system warns that virtual memory is running low.\n"); | |
55796183 RS |
412 | |
413 | /* It might be unsafe to call do_auto_save now. */ | |
414 | force_auto_save_soon (); | |
271c7b7c RS |
415 | } |
416 | #endif | |
fcf01ad3 RS |
417 | |
418 | /* We define abort, rather than using it from the library, | |
c9fe9cce | 419 | so that GDB can return from a breakpoint here. |
7db35a48 | 420 | MSDOS has its own definition in msdos.c. */ |
fcf01ad3 | 421 | |
37e2fdd2 | 422 | #if ! defined (DOS_NT) && ! defined (NO_ABORT) |
ca9c0567 | 423 | |
4624371d | 424 | void |
fcf01ad3 RS |
425 | abort () |
426 | { | |
427 | kill (getpid (), SIGABRT); | |
37e2fdd2 RS |
428 | /* This shouldn't be executed, but it prevents a warning. */ |
429 | exit (1); | |
fcf01ad3 | 430 | } |
c9fe9cce | 431 | #endif |
fcf01ad3 | 432 | |
f927c5ae | 433 | \f |
7db35a48 | 434 | /* Code for dealing with Lisp access to the Unix command line. */ |
f927c5ae | 435 | |
dfcf069d | 436 | static void |
f927c5ae JB |
437 | init_cmdargs (argc, argv, skip_args) |
438 | int argc; | |
439 | char **argv; | |
440 | int skip_args; | |
441 | { | |
442 | register int i; | |
213d0b1f | 443 | Lisp_Object name, dir, tem; |
aed13378 | 444 | int count = SPECPDL_INDEX (); |
213d0b1f | 445 | Lisp_Object raw_name; |
f927c5ae | 446 | |
e29f86e4 RS |
447 | initial_argv = argv; |
448 | initial_argc = argc; | |
449 | ||
213d0b1f RS |
450 | raw_name = build_string (argv[0]); |
451 | ||
452 | /* Add /: to the front of the name | |
453 | if it would otherwise be treated as magic. */ | |
454 | tem = Ffind_file_name_handler (raw_name, Qt); | |
455 | if (! NILP (tem)) | |
456 | raw_name = concat2 (build_string ("/:"), raw_name); | |
457 | ||
458 | Vinvocation_name = Ffile_name_nondirectory (raw_name); | |
459 | Vinvocation_directory = Ffile_name_directory (raw_name); | |
460 | ||
ace40a69 RS |
461 | /* If we got no directory in argv[0], search PATH to find where |
462 | Emacs actually came from. */ | |
463 | if (NILP (Vinvocation_directory)) | |
464 | { | |
465 | Lisp_Object found; | |
466 | int yes = openp (Vexec_path, Vinvocation_name, | |
10c0915e | 467 | Vexec_suffixes, &found, make_number (X_OK)); |
e443f843 | 468 | if (yes == 1) |
213d0b1f RS |
469 | { |
470 | /* Add /: to the front of the name | |
471 | if it would otherwise be treated as magic. */ | |
472 | tem = Ffind_file_name_handler (found, Qt); | |
473 | if (! NILP (tem)) | |
474 | found = concat2 (build_string ("/:"), found); | |
475 | Vinvocation_directory = Ffile_name_directory (found); | |
476 | } | |
ace40a69 | 477 | } |
59653951 | 478 | |
4133b300 RS |
479 | if (!NILP (Vinvocation_directory) |
480 | && NILP (Ffile_name_absolute_p (Vinvocation_directory))) | |
213d0b1f RS |
481 | /* Emacs was started with relative path, like ./emacs. |
482 | Make it absolute. */ | |
4133b300 RS |
483 | Vinvocation_directory = Fexpand_file_name (Vinvocation_directory, Qnil); |
484 | ||
07f4d123 RS |
485 | Vinstallation_directory = Qnil; |
486 | ||
487 | if (!NILP (Vinvocation_directory)) | |
488 | { | |
489 | dir = Vinvocation_directory; | |
490 | name = Fexpand_file_name (Vinvocation_name, dir); | |
491 | while (1) | |
492 | { | |
f5ab9736 | 493 | Lisp_Object tem, lib_src_exists; |
07f4d123 RS |
494 | Lisp_Object etc_exists, info_exists; |
495 | ||
f5ab9736 RS |
496 | /* See if dir contains subdirs for use by Emacs. |
497 | Check for the ones that would exist in a build directory, | |
498 | not including lisp and info. */ | |
499 | tem = Fexpand_file_name (build_string ("lib-src"), dir); | |
500 | lib_src_exists = Ffile_exists_p (tem); | |
de004cc6 | 501 | |
70344b34 | 502 | #ifdef MSDOS |
de004cc6 RS |
503 | /* MSDOS installations frequently remove lib-src, but we still |
504 | must set installation-directory, or else info won't find | |
505 | its files (it uses the value of installation-directory). */ | |
506 | tem = Fexpand_file_name (build_string ("info"), dir); | |
507 | info_exists = Ffile_exists_p (tem); | |
70344b34 EZ |
508 | #else |
509 | info_exists = Qnil; | |
510 | #endif | |
de004cc6 RS |
511 | |
512 | if (!NILP (lib_src_exists) || !NILP (info_exists)) | |
07f4d123 | 513 | { |
f5ab9736 RS |
514 | tem = Fexpand_file_name (build_string ("etc"), dir); |
515 | etc_exists = Ffile_exists_p (tem); | |
516 | if (!NILP (etc_exists)) | |
07f4d123 | 517 | { |
f5ab9736 RS |
518 | Vinstallation_directory |
519 | = Ffile_name_as_directory (dir); | |
520 | break; | |
07f4d123 RS |
521 | } |
522 | } | |
523 | ||
524 | /* See if dir's parent contains those subdirs. */ | |
f5ab9736 RS |
525 | tem = Fexpand_file_name (build_string ("../lib-src"), dir); |
526 | lib_src_exists = Ffile_exists_p (tem); | |
de004cc6 | 527 | |
70344b34 EZ |
528 | |
529 | #ifdef MSDOS | |
530 | /* See the MSDOS commentary above. */ | |
de004cc6 RS |
531 | tem = Fexpand_file_name (build_string ("../info"), dir); |
532 | info_exists = Ffile_exists_p (tem); | |
70344b34 EZ |
533 | #else |
534 | info_exists = Qnil; | |
535 | #endif | |
de004cc6 RS |
536 | |
537 | if (!NILP (lib_src_exists) || !NILP (info_exists)) | |
07f4d123 | 538 | { |
f5ab9736 RS |
539 | tem = Fexpand_file_name (build_string ("../etc"), dir); |
540 | etc_exists = Ffile_exists_p (tem); | |
541 | if (!NILP (etc_exists)) | |
07f4d123 | 542 | { |
f5ab9736 RS |
543 | tem = Fexpand_file_name (build_string (".."), dir); |
544 | Vinstallation_directory | |
545 | = Ffile_name_as_directory (tem); | |
546 | break; | |
07f4d123 RS |
547 | } |
548 | } | |
549 | ||
550 | /* If the Emacs executable is actually a link, | |
551 | next try the dir that the link points into. */ | |
552 | tem = Ffile_symlink_p (name); | |
553 | if (!NILP (tem)) | |
554 | { | |
260ec24d | 555 | name = Fexpand_file_name (tem, dir); |
07f4d123 RS |
556 | dir = Ffile_name_directory (name); |
557 | } | |
558 | else | |
559 | break; | |
560 | } | |
561 | } | |
562 | ||
f927c5ae JB |
563 | Vcommand_line_args = Qnil; |
564 | ||
565 | for (i = argc - 1; i >= 0; i--) | |
566 | { | |
567 | if (i == 0 || i > skip_args) | |
a520393d KH |
568 | /* For the moment, we keep arguments as is in unibyte strings. |
569 | They are decoded in the function command-line after we know | |
570 | locale-coding-system. */ | |
f927c5ae | 571 | Vcommand_line_args |
68db37aa | 572 | = Fcons (make_unibyte_string (argv[i], strlen (argv[i])), |
a520393d | 573 | Vcommand_line_args); |
f927c5ae | 574 | } |
213d0b1f RS |
575 | |
576 | unbind_to (count, Qnil); | |
f927c5ae | 577 | } |
59653951 JB |
578 | |
579 | DEFUN ("invocation-name", Finvocation_name, Sinvocation_name, 0, 0, 0, | |
7db35a48 PJ |
580 | doc: /* Return the program name that was used to run Emacs. |
581 | Any directory names are omitted. */) | |
582 | () | |
59653951 JB |
583 | { |
584 | return Fcopy_sequence (Vinvocation_name); | |
585 | } | |
586 | ||
ace40a69 | 587 | DEFUN ("invocation-directory", Finvocation_directory, Sinvocation_directory, |
7db35a48 PJ |
588 | 0, 0, 0, |
589 | doc: /* Return the directory name in which the Emacs executable was located. */) | |
590 | () | |
ace40a69 RS |
591 | { |
592 | return Fcopy_sequence (Vinvocation_directory); | |
593 | } | |
594 | ||
f927c5ae JB |
595 | \f |
596 | #ifdef VMS | |
597 | #ifdef LINK_CRTL_SHARE | |
34035df3 | 598 | #ifdef SHARABLE_LIB_BUG |
f927c5ae | 599 | extern noshare char **environ; |
34035df3 | 600 | #endif /* SHARABLE_LIB_BUG */ |
f927c5ae JB |
601 | #endif /* LINK_CRTL_SHARE */ |
602 | #endif /* VMS */ | |
603 | ||
0269dedb RS |
604 | #ifdef HAVE_TZSET |
605 | /* A valid but unlikely value for the TZ environment value. | |
606 | It is OK (though a bit slower) if the user actually chooses this value. */ | |
607 | static char dump_tz[] = "UtC0"; | |
608 | #endif | |
609 | ||
a90538cb | 610 | #ifndef ORDINARY_LINK |
efd241cc RS |
611 | /* We don't include crtbegin.o and crtend.o in the link, |
612 | so these functions and variables might be missed. | |
613 | Provide dummy definitions to avoid error. | |
614 | (We don't have any real constructors or destructors.) */ | |
615 | #ifdef __GNUC__ | |
46e65b73 | 616 | #ifndef GCC_CTORS_IN_LIBC |
dfcf069d | 617 | void __do_global_ctors () |
efd241cc | 618 | {} |
dfcf069d | 619 | void __do_global_ctors_aux () |
c83a7064 | 620 | {} |
dfcf069d | 621 | void __do_global_dtors () |
33143604 | 622 | {} |
554061d8 | 623 | /* GNU/Linux has a bug in its library; avoid an error. */ |
8a2a6032 | 624 | #ifndef GNU_LINUX |
c83a7064 | 625 | char * __CTOR_LIST__[2] = { (char *) (-1), 0 }; |
64c1864a | 626 | #endif |
c83a7064 | 627 | char * __DTOR_LIST__[2] = { (char *) (-1), 0 }; |
46e65b73 | 628 | #endif /* GCC_CTORS_IN_LIBC */ |
dfcf069d | 629 | void __main () |
efd241cc | 630 | {} |
efd241cc | 631 | #endif /* __GNUC__ */ |
a90538cb | 632 | #endif /* ORDINARY_LINK */ |
efd241cc | 633 | |
e2925360 KH |
634 | /* Test whether the next argument in ARGV matches SSTR or a prefix of |
635 | LSTR (at least MINLEN characters). If so, then if VALPTR is non-null | |
636 | (the argument is supposed to have a value) store in *VALPTR either | |
637 | the next argument or the portion of this one after the equal sign. | |
638 | ARGV is read starting at position *SKIPPTR; this index is advanced | |
639 | by the number of arguments used. | |
640 | ||
641 | Too bad we can't just use getopt for all of this, but we don't have | |
642 | enough information to do it right. */ | |
081bef73 | 643 | |
e2925360 | 644 | static int |
df6530f8 | 645 | argmatch (argv, argc, sstr, lstr, minlen, valptr, skipptr) |
e2925360 | 646 | char **argv; |
df6530f8 | 647 | int argc; |
e2925360 KH |
648 | char *sstr; |
649 | char *lstr; | |
650 | int minlen; | |
651 | char **valptr; | |
652 | int *skipptr; | |
653 | { | |
6bbd7a29 | 654 | char *p = NULL; |
e2925360 | 655 | int arglen; |
df6530f8 RS |
656 | char *arg; |
657 | ||
658 | /* Don't access argv[argc]; give up in advance. */ | |
659 | if (argc <= *skipptr + 1) | |
660 | return 0; | |
661 | ||
662 | arg = argv[*skipptr+1]; | |
e2925360 KH |
663 | if (arg == NULL) |
664 | return 0; | |
665 | if (strcmp (arg, sstr) == 0) | |
666 | { | |
667 | if (valptr != NULL) | |
668 | { | |
669 | *valptr = argv[*skipptr+2]; | |
670 | *skipptr += 2; | |
671 | } | |
672 | else | |
673 | *skipptr += 1; | |
674 | return 1; | |
675 | } | |
676 | arglen = (valptr != NULL && (p = index (arg, '=')) != NULL | |
677 | ? p - arg : strlen (arg)); | |
c03e1113 | 678 | if (lstr == 0 || arglen < minlen || strncmp (arg, lstr, arglen) != 0) |
e2925360 KH |
679 | return 0; |
680 | else if (valptr == NULL) | |
681 | { | |
682 | *skipptr += 1; | |
683 | return 1; | |
684 | } | |
685 | else if (p != NULL) | |
686 | { | |
687 | *valptr = p+1; | |
688 | *skipptr += 1; | |
689 | return 1; | |
690 | } | |
691 | else if (argv[*skipptr+2] != NULL) | |
692 | { | |
693 | *valptr = argv[*skipptr+2]; | |
694 | *skipptr += 2; | |
695 | return 1; | |
696 | } | |
697 | else | |
698 | { | |
699 | return 0; | |
700 | } | |
701 | } | |
702 | ||
b6779252 | 703 | #ifdef DOUG_LEA_MALLOC |
f927c5ae | 704 | |
b6779252 KH |
705 | /* malloc can be invoked even before main (e.g. by the dynamic |
706 | linker), so the dumped malloc state must be restored as early as | |
707 | possible using this special hook. */ | |
708 | ||
709 | static void | |
710 | malloc_initialize_hook () | |
711 | { | |
1f9c3929 | 712 | #ifndef USE_CRT_DLL |
b6779252 | 713 | extern char **environ; |
1f9c3929 | 714 | #endif |
6000fe37 | 715 | |
15aaf1b5 RS |
716 | if (initialized) |
717 | { | |
7c9cd446 AS |
718 | if (!malloc_using_checking) |
719 | /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be | |
720 | ignored if the heap to be restored was constructed without | |
d942e12a AS |
721 | malloc checking. Can't use unsetenv, since that calls malloc. */ |
722 | { | |
723 | char **p; | |
724 | ||
a57c4026 | 725 | for (p = environ; p && *p; p++) |
d942e12a AS |
726 | if (strncmp (*p, "MALLOC_CHECK_=", 14) == 0) |
727 | { | |
728 | do | |
729 | *p = p[1]; | |
730 | while (*++p); | |
731 | break; | |
732 | } | |
733 | } | |
b6779252 | 734 | |
15aaf1b5 | 735 | malloc_set_state (malloc_state_ptr); |
68db37aa | 736 | #ifndef XMALLOC_OVERRUN_CHECK |
15aaf1b5 | 737 | free (malloc_state_ptr); |
68db37aa | 738 | #endif |
15aaf1b5 | 739 | } |
7c9cd446 | 740 | else |
dede2792 JD |
741 | { |
742 | if (my_heap_start == 0) | |
743 | my_heap_start = sbrk (0); | |
744 | malloc_using_checking = getenv ("MALLOC_CHECK_") != NULL; | |
745 | } | |
b6779252 KH |
746 | } |
747 | ||
748 | void (*__malloc_initialize_hook) () = malloc_initialize_hook; | |
749 | ||
750 | #endif /* DOUG_LEA_MALLOC */ | |
751 | ||
d883731c PJ |
752 | |
753 | #define REPORT_EMACS_BUG_ADDRESS "bug-gnu-emacs@gnu.org" | |
754 | #define REPORT_EMACS_BUG_PRETEST_ADDRESS "emacs-pretest-bug@gnu.org" | |
755 | ||
756 | /* This function is used to determine an address to which bug report should | |
757 | be sent. */ | |
758 | ||
400d6fa9 PJ |
759 | char * |
760 | bug_reporting_address () | |
d883731c | 761 | { |
400d6fa9 | 762 | int count = 0; |
d883731c PJ |
763 | Lisp_Object temp; |
764 | char *string; | |
765 | ||
766 | temp = Fsymbol_value (intern ("emacs-version")); | |
767 | ||
768 | /* When `emacs-version' is invalid, use normal address. */ | |
769 | if (!STRINGP(temp)) | |
770 | return REPORT_EMACS_BUG_ADDRESS; | |
771 | ||
d5db4077 | 772 | string = SDATA (temp); |
d883731c | 773 | |
400d6fa9 PJ |
774 | /* Count dots in `emacs-version'. */ |
775 | while (*string) | |
776 | { | |
777 | if (*string == '.') | |
778 | count++; | |
779 | string++; | |
780 | } | |
d883731c PJ |
781 | |
782 | /* When `emacs-version' has at least three dots, it is development or | |
783 | pretest version of Emacs. */ | |
400d6fa9 | 784 | return count >= 3 ? REPORT_EMACS_BUG_PRETEST_ADDRESS : REPORT_EMACS_BUG_ADDRESS; |
d883731c PJ |
785 | } |
786 | ||
787 | ||
b6779252 KH |
788 | /* ARGSUSED */ |
789 | int | |
3861bdcd DL |
790 | main (argc, argv |
791 | #ifdef VMS | |
792 | , envp | |
793 | #endif | |
794 | ) | |
b6779252 KH |
795 | int argc; |
796 | char **argv; | |
3861bdcd | 797 | #ifdef VMS |
b6779252 | 798 | char **envp; |
3861bdcd | 799 | #endif |
b6779252 | 800 | { |
2313132f | 801 | #if GC_MARK_STACK |
39ec21ea GM |
802 | Lisp_Object dummy; |
803 | #endif | |
b6779252 | 804 | char stack_bottom_variable; |
68c45bf0 | 805 | int do_initial_setlocale; |
b6779252 | 806 | int skip_args = 0; |
1f9c3929 | 807 | #ifndef USE_CRT_DLL |
b6779252 | 808 | extern int errno; |
1f9c3929 | 809 | #endif |
b6779252 KH |
810 | #ifdef HAVE_SETRLIMIT |
811 | struct rlimit rlim; | |
812 | #endif | |
813 | int no_loadup = 0; | |
6e910e07 | 814 | char *junk = 0; |
b6779252 | 815 | |
2313132f | 816 | #if GC_MARK_STACK |
39ec21ea GM |
817 | extern Lisp_Object *stack_base; |
818 | stack_base = &dummy; | |
819 | #endif | |
820 | ||
dede2792 JD |
821 | if (!initialized) |
822 | { | |
823 | extern char my_endbss[]; | |
824 | extern char *my_endbss_static; | |
825 | ||
826 | if (my_heap_start == 0) | |
827 | my_heap_start = sbrk (0); | |
828 | ||
829 | heap_bss_diff = (char *)my_heap_start - max (my_endbss, my_endbss_static); | |
830 | } | |
831 | ||
b6779252 KH |
832 | #ifdef LINUX_SBRK_BUG |
833 | __sbrk (1); | |
15aaf1b5 RS |
834 | #endif |
835 | ||
d785cf9e RS |
836 | #ifdef RUN_TIME_REMAP |
837 | if (initialized) | |
838 | run_time_remap (argv[0]); | |
839 | #endif | |
840 | ||
3fb79984 | 841 | #ifdef MAC_OSX |
e0f712ba AC |
842 | if (!initialized) |
843 | unexec_init_emacs_zone (); | |
844 | #endif | |
845 | ||
081bef73 | 846 | sort_args (argc, argv); |
956e3c7e RS |
847 | argc = 0; |
848 | while (argv[argc]) argc++; | |
081bef73 | 849 | |
3270ae6e KH |
850 | if (argmatch (argv, argc, "-version", "--version", 3, NULL, &skip_args) |
851 | /* We don't know the version number unless this is a dumped Emacs. | |
852 | So ignore --version otherwise. */ | |
853 | && initialized) | |
1702afef | 854 | { |
5cf9ca93 | 855 | Lisp_Object tem, tem2; |
1702afef | 856 | tem = Fsymbol_value (intern ("emacs-version")); |
5cf9ca93 | 857 | tem2 = Fsymbol_value (intern ("emacs-copyright")); |
1702afef RS |
858 | if (!STRINGP (tem)) |
859 | { | |
860 | fprintf (stderr, "Invalid value of `emacs-version'\n"); | |
861 | exit (1); | |
862 | } | |
5cf9ca93 GM |
863 | if (!STRINGP (tem2)) |
864 | { | |
865 | fprintf (stderr, "Invalid value of `emacs-copyright'\n"); | |
866 | exit (1); | |
867 | } | |
1702afef RS |
868 | else |
869 | { | |
d5db4077 | 870 | printf ("GNU Emacs %s\n", SDATA (tem)); |
5cf9ca93 | 871 | printf ("%s\n", SDATA(tem2)); |
b455c665 RS |
872 | printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n"); |
873 | printf ("You may redistribute copies of Emacs\n"); | |
874 | printf ("under the terms of the GNU General Public License.\n"); | |
875 | printf ("For more information about these matters, "); | |
94487c4e | 876 | printf ("see the file named COPYING.\n"); |
1702afef RS |
877 | exit (0); |
878 | } | |
879 | } | |
880 | ||
dede2792 JD |
881 | #ifdef HAVE_PERSONALITY_LINUX32 |
882 | /* See if there is a gap between the end of BSS and the heap. | |
883 | In that case, set personality and exec ourself again. */ | |
884 | if (!initialized | |
885 | && (strcmp (argv[argc-1], "dump") == 0 | |
886 | || strcmp (argv[argc-1], "bootstrap") == 0) | |
887 | && heap_bss_diff > MAX_HEAP_BSS_DIFF) | |
888 | { | |
889 | if (! getenv ("EMACS_HEAP_EXEC")) | |
890 | { | |
891 | /* Set this so we only do this once. */ | |
892 | putenv("EMACS_HEAP_EXEC=true"); | |
711877f3 MY |
893 | |
894 | /* A flag to turn off address randomization which is introduced | |
895 | in linux kernel shipped with fedora core 4 */ | |
896 | #define ADD_NO_RANDOMIZE 0x0040000 | |
897 | personality (PER_LINUX32 | ADD_NO_RANDOMIZE); | |
898 | #undef ADD_NO_RANDOMIZE | |
899 | ||
dede2792 JD |
900 | execvp (argv[0], argv); |
901 | ||
902 | /* If the exec fails, try to dump anyway. */ | |
903 | perror ("execvp"); | |
904 | } | |
905 | } | |
906 | #endif /* HAVE_PERSONALITY_LINUX32 */ | |
907 | ||
908 | ||
f927c5ae JB |
909 | /* Map in shared memory, if we are using that. */ |
910 | #ifdef HAVE_SHM | |
df6530f8 | 911 | if (argmatch (argv, argc, "-nl", "--no-shared-memory", 6, NULL, &skip_args)) |
f927c5ae JB |
912 | { |
913 | map_in_data (0); | |
914 | /* The shared memory was just restored, which clobbered this. */ | |
915 | skip_args = 1; | |
916 | } | |
917 | else | |
918 | { | |
919 | map_in_data (1); | |
920 | /* The shared memory was just restored, which clobbered this. */ | |
921 | skip_args = 0; | |
922 | } | |
923 | #endif | |
924 | ||
e0f712ba AC |
925 | #ifdef MAC_OSX |
926 | /* Skip process serial number passed in the form -psn_x_y as | |
a4f8f6cf YM |
927 | command-line argument. The WindowServer adds this option when |
928 | Emacs is invoked from the Finder or by the `open' command. In | |
929 | these cases, the working directory becomes `/', so we change it | |
930 | to the user's home directory. */ | |
e0f712ba | 931 | if (argc > skip_args + 1 && strncmp (argv[skip_args+1], "-psn_", 5) == 0) |
a4f8f6cf YM |
932 | { |
933 | chdir (getenv ("HOME")); | |
934 | skip_args++; | |
935 | } | |
e0f712ba AC |
936 | #endif /* MAC_OSX */ |
937 | ||
f927c5ae | 938 | #ifdef VMS |
7db35a48 | 939 | /* If -map specified, map the data file in. */ |
e2925360 KH |
940 | { |
941 | char *file; | |
70646bb5 | 942 | if (argmatch (argv, argc, "-map", "--map-data", 3, &file, &skip_args)) |
e2925360 KH |
943 | mapin_data (file); |
944 | } | |
f927c5ae JB |
945 | |
946 | #ifdef LINK_CRTL_SHARE | |
34035df3 | 947 | #ifdef SHARABLE_LIB_BUG |
7db35a48 | 948 | /* Bletcherous shared libraries! */ |
f927c5ae JB |
949 | if (!stdin) |
950 | stdin = fdopen (0, "r"); | |
951 | if (!stdout) | |
952 | stdout = fdopen (1, "w"); | |
953 | if (!stderr) | |
954 | stderr = fdopen (2, "w"); | |
955 | if (!environ) | |
956 | environ = envp; | |
34035df3 | 957 | #endif /* SHARABLE_LIB_BUG */ |
f927c5ae JB |
958 | #endif /* LINK_CRTL_SHARE */ |
959 | #endif /* VMS */ | |
960 | ||
ea2acec5 | 961 | #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK) |
6c2935e9 RS |
962 | /* Extend the stack space available. |
963 | Don't do that if dumping, since some systems (e.g. DJGPP) | |
964 | might define a smaller stack limit at that time. */ | |
965 | if (1 | |
966 | #ifndef CANNOT_DUMP | |
967 | && (!noninteractive || initialized) | |
968 | #endif | |
969 | && !getrlimit (RLIMIT_STACK, &rlim)) | |
53c58b5d | 970 | { |
509a8fcd | 971 | long newlim; |
fa8459a3 | 972 | extern size_t re_max_failures; |
03effc23 KH |
973 | /* Approximate the amount regex.c needs per unit of re_max_failures. */ |
974 | int ratio = 20 * sizeof (char *); | |
975 | /* Then add 33% to cover the size of the smaller stacks that regex.c | |
976 | successively allocates and discards, on its way to the maximum. */ | |
977 | ratio += ratio / 3; | |
978 | /* Add in some extra to cover | |
979 | what we're likely to use for other reasons. */ | |
980 | newlim = re_max_failures * ratio + 200000; | |
d0381a7f RS |
981 | #ifdef __NetBSD__ |
982 | /* NetBSD (at least NetBSD 1.2G and former) has a bug in its | |
983 | stack allocation routine for new process that the allocation | |
984 | fails if stack limit is not on page boundary. So, round up the | |
985 | new limit to page boundary. */ | |
986 | newlim = (newlim + getpagesize () - 1) / getpagesize () * getpagesize(); | |
987 | #endif | |
509a8fcd | 988 | if (newlim > rlim.rlim_max) |
6c2935e9 RS |
989 | { |
990 | newlim = rlim.rlim_max; | |
03effc23 KH |
991 | /* Don't let regex.c overflow the stack we have. */ |
992 | re_max_failures = (newlim - 200000) / ratio; | |
6c2935e9 | 993 | } |
509a8fcd RS |
994 | if (rlim.rlim_cur < newlim) |
995 | rlim.rlim_cur = newlim; | |
996 | ||
53c58b5d RS |
997 | setrlimit (RLIMIT_STACK, &rlim); |
998 | } | |
ea2acec5 | 999 | #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */ |
53c58b5d | 1000 | |
f927c5ae JB |
1001 | /* Record (approximately) where the stack begins. */ |
1002 | stack_bottom = &stack_bottom_variable; | |
1003 | ||
f927c5ae JB |
1004 | #ifdef USG_SHARED_LIBRARIES |
1005 | if (bss_end) | |
1d233b80 | 1006 | brk ((void *)bss_end); |
f927c5ae JB |
1007 | #endif |
1008 | ||
1009 | clearerr (stdin); | |
9ae8f997 | 1010 | |
f927c5ae | 1011 | #ifndef SYSTEM_MALLOC |
bf7f4e90 RS |
1012 | /* Arrange to get warning messages as memory fills up. */ |
1013 | memory_warnings (0, malloc_warning); | |
9ac0d9e0 | 1014 | |
f5a3c8c4 AI |
1015 | /* Call malloc at least once, to run the initial __malloc_hook. |
1016 | Also call realloc and free for consistency. */ | |
1017 | free (realloc (malloc (4), 4)); | |
bf7f4e90 | 1018 | |
06ca62eb | 1019 | # ifndef SYNC_INPUT |
bf7f4e90 RS |
1020 | /* Arrange to disable interrupt input inside malloc etc. */ |
1021 | uninterrupt_malloc (); | |
06ca62eb | 1022 | # endif /* not SYNC_INPUT */ |
f927c5ae JB |
1023 | #endif /* not SYSTEM_MALLOC */ |
1024 | ||
3e9de9f6 | 1025 | #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD |
333f1b6f | 1026 | main_thread = pthread_self (); |
3e9de9f6 | 1027 | #endif /* FORWARD_SIGNAL_TO_MAIN_THREAD */ |
333f1b6f | 1028 | |
edd3ff1d | 1029 | #if defined (MSDOS) || defined (WINDOWSNT) |
29b89fe0 RS |
1030 | /* We do all file input/output as binary files. When we need to translate |
1031 | newlines, we do that manually. */ | |
1032 | _fmode = O_BINARY; | |
edd3ff1d | 1033 | #endif /* MSDOS || WINDOWSNT */ |
18198bb2 | 1034 | |
edd3ff1d | 1035 | #ifdef MSDOS |
18198bb2 RS |
1036 | #if __DJGPP__ >= 2 |
1037 | if (!isatty (fileno (stdin))) | |
1038 | setmode (fileno (stdin), O_BINARY); | |
1039 | if (!isatty (fileno (stdout))) | |
1040 | { | |
1041 | fflush (stdout); | |
1042 | setmode (fileno (stdout), O_BINARY); | |
1043 | } | |
1044 | #else /* not __DJGPP__ >= 2 */ | |
29b89fe0 RS |
1045 | (stdin)->_flag &= ~_IOTEXT; |
1046 | (stdout)->_flag &= ~_IOTEXT; | |
1047 | (stderr)->_flag &= ~_IOTEXT; | |
18198bb2 | 1048 | #endif /* not __DJGPP__ >= 2 */ |
29b89fe0 RS |
1049 | #endif /* MSDOS */ |
1050 | ||
a422068f | 1051 | #ifdef SET_EMACS_PRIORITY |
3005da00 | 1052 | if (emacs_priority) |
5aa7f46a | 1053 | nice (emacs_priority); |
f927c5ae | 1054 | setuid (getuid ()); |
a422068f | 1055 | #endif /* SET_EMACS_PRIORITY */ |
f927c5ae | 1056 | |
68c45bf0 PE |
1057 | /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case. |
1058 | The build procedure uses this while dumping, to ensure that the | |
1059 | dumped Emacs does not have its system locale tables initialized, | |
1060 | as that might cause screwups when the dumped Emacs starts up. */ | |
1061 | { | |
1062 | char *lc_all = getenv ("LC_ALL"); | |
1063 | do_initial_setlocale = ! lc_all || strcmp (lc_all, "C"); | |
1064 | } | |
1065 | ||
1066 | /* Set locale now, so that initial error messages are localized properly. | |
1067 | fixup_locale must wait until later, since it builds strings. */ | |
1068 | if (do_initial_setlocale) | |
1069 | setlocale (LC_ALL, ""); | |
1070 | ||
f927c5ae JB |
1071 | inhibit_window_system = 0; |
1072 | ||
7db35a48 | 1073 | /* Handle the -t switch, which specifies filename to use as terminal. */ |
956e3c7e RS |
1074 | while (1) |
1075 | { | |
1076 | char *term; | |
1077 | if (argmatch (argv, argc, "-t", "--terminal", 4, &term, &skip_args)) | |
1078 | { | |
1079 | int result; | |
68c45bf0 PE |
1080 | emacs_close (0); |
1081 | emacs_close (1); | |
1082 | result = emacs_open (term, O_RDWR, 0); | |
956e3c7e RS |
1083 | if (result < 0) |
1084 | { | |
1085 | char *errstring = strerror (errno); | |
186486eb | 1086 | fprintf (stderr, "%s: %s: %s\n", argv[0], term, errstring); |
956e3c7e RS |
1087 | exit (1); |
1088 | } | |
1089 | dup (0); | |
1090 | if (! isatty (0)) | |
1091 | { | |
186486eb | 1092 | fprintf (stderr, "%s: %s: not a tty\n", argv[0], term); |
956e3c7e RS |
1093 | exit (1); |
1094 | } | |
1095 | fprintf (stderr, "Using %s\n", term); | |
8ba50e1a | 1096 | #ifdef HAVE_WINDOW_SYSTEM |
956e3c7e | 1097 | inhibit_window_system = 1; /* -t => -nw */ |
f927c5ae | 1098 | #endif |
956e3c7e RS |
1099 | } |
1100 | else | |
1101 | break; | |
1102 | } | |
1103 | ||
400d6fa9 PJ |
1104 | /* Command line option --no-windows is deprecated and thus not mentioned |
1105 | in the manual and usage informations. */ | |
1106 | if (argmatch (argv, argc, "-nw", "--no-window-system", 6, NULL, &skip_args) | |
1107 | || argmatch (argv, argc, "-nw", "--no-windows", 6, NULL, &skip_args)) | |
e2925360 | 1108 | inhibit_window_system = 1; |
f927c5ae | 1109 | |
e2925360 | 1110 | /* Handle the -batch switch, which means don't do interactive display. */ |
f927c5ae | 1111 | noninteractive = 0; |
df6530f8 | 1112 | if (argmatch (argv, argc, "-batch", "--batch", 5, NULL, &skip_args)) |
55f4edbc RS |
1113 | { |
1114 | noninteractive = 1; | |
1115 | Vundo_outer_limit = Qnil; | |
1116 | } | |
6e910e07 RS |
1117 | if (argmatch (argv, argc, "-script", "--script", 3, &junk, &skip_args)) |
1118 | { | |
1119 | noninteractive = 1; /* Set batch mode. */ | |
21a4ff8e | 1120 | /* Convert --script to -scriptload, un-skip it, and sort again |
e09b9180 | 1121 | so that it will be handled in proper sequence. */ |
a09a5b5b | 1122 | /* FIXME broken for --script=FILE - is that supposed to work? */ |
21a4ff8e | 1123 | argv[skip_args - 1] = "-scriptload"; |
6e910e07 RS |
1124 | skip_args -= 2; |
1125 | sort_args (argc, argv); | |
1126 | } | |
e2925360 | 1127 | |
7db35a48 | 1128 | /* Handle the --help option, which gives a usage message. */ |
df6530f8 | 1129 | if (argmatch (argv, argc, "-help", "--help", 3, NULL, &skip_args)) |
f927c5ae | 1130 | { |
6b61353c KH |
1131 | printf (USAGE1, argv[0], USAGE2); |
1132 | printf (USAGE3); | |
1133 | printf (USAGE4, bug_reporting_address ()); | |
e2925360 | 1134 | exit (0); |
f927c5ae JB |
1135 | } |
1136 | ||
edb85f59 RS |
1137 | if (! noninteractive) |
1138 | { | |
1139 | #ifdef BSD_PGRPS | |
1140 | if (initialized) | |
1141 | { | |
1142 | inherited_pgroup = EMACS_GETPGRP (0); | |
1143 | setpgrp (0, getpid ()); | |
1144 | } | |
1145 | #else | |
1146 | #if defined (USG5) && defined (INTERRUPT_INPUT) | |
1147 | setpgrp (); | |
1148 | #endif | |
5467331d YM |
1149 | #endif |
1150 | #if defined (HAVE_GTK_AND_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC) | |
1151 | { | |
1152 | extern void malloc_enable_thread P_ ((void)); | |
1153 | ||
1154 | malloc_enable_thread (); | |
1155 | } | |
edb85f59 RS |
1156 | #endif |
1157 | } | |
1158 | ||
fb8e9847 | 1159 | init_signals (); |
fb8e9847 | 1160 | |
1efa2983 KH |
1161 | /* Don't catch SIGHUP if dumping. */ |
1162 | if (1 | |
1163 | #ifndef CANNOT_DUMP | |
1164 | && initialized | |
1165 | #endif | |
1166 | ) | |
1167 | { | |
57e3d22a | 1168 | sigblock (sigmask (SIGHUP)); |
1efa2983 KH |
1169 | /* In --batch mode, don't catch SIGHUP if already ignored. |
1170 | That makes nohup work. */ | |
1171 | if (! noninteractive | |
1172 | || signal (SIGHUP, SIG_IGN) != SIG_IGN) | |
1173 | signal (SIGHUP, fatal_error_signal); | |
57e3d22a | 1174 | sigunblock (sigmask (SIGHUP)); |
1efa2983 KH |
1175 | } |
1176 | ||
f927c5ae JB |
1177 | if ( |
1178 | #ifndef CANNOT_DUMP | |
1179 | ! noninteractive || initialized | |
1180 | #else | |
1181 | 1 | |
1182 | #endif | |
1183 | ) | |
1184 | { | |
1efa2983 | 1185 | /* Don't catch these signals in batch mode if dumping. |
f927c5ae JB |
1186 | On some machines, this sets static data that would make |
1187 | signal fail to work right when the dumped Emacs is run. */ | |
f927c5ae JB |
1188 | signal (SIGQUIT, fatal_error_signal); |
1189 | signal (SIGILL, fatal_error_signal); | |
1190 | signal (SIGTRAP, fatal_error_signal); | |
7317d9e8 | 1191 | #ifdef SIGUSR1 |
71b28d05 | 1192 | add_user_signal (SIGUSR1, "sigusr1"); |
7317d9e8 | 1193 | #endif |
8247c60d | 1194 | #ifdef SIGUSR2 |
71b28d05 | 1195 | add_user_signal (SIGUSR2, "sigusr2"); |
7317d9e8 | 1196 | #endif |
99e372cd RS |
1197 | #ifdef SIGABRT |
1198 | signal (SIGABRT, fatal_error_signal); | |
1199 | #endif | |
1200 | #ifdef SIGHWE | |
1201 | signal (SIGHWE, fatal_error_signal); | |
1202 | #endif | |
1203 | #ifdef SIGPRE | |
1204 | signal (SIGPRE, fatal_error_signal); | |
1205 | #endif | |
1206 | #ifdef SIGORE | |
1207 | signal (SIGORE, fatal_error_signal); | |
1208 | #endif | |
1209 | #ifdef SIGUME | |
1210 | signal (SIGUME, fatal_error_signal); | |
1211 | #endif | |
1212 | #ifdef SIGDLK | |
1213 | signal (SIGDLK, fatal_error_signal); | |
1214 | #endif | |
1215 | #ifdef SIGCPULIM | |
1216 | signal (SIGCPULIM, fatal_error_signal); | |
1217 | #endif | |
a90538cb JB |
1218 | #ifdef SIGIOT |
1219 | /* This is missing on some systems - OS/2, for example. */ | |
f927c5ae | 1220 | signal (SIGIOT, fatal_error_signal); |
a90538cb | 1221 | #endif |
f927c5ae JB |
1222 | #ifdef SIGEMT |
1223 | signal (SIGEMT, fatal_error_signal); | |
1224 | #endif | |
1225 | signal (SIGFPE, fatal_error_signal); | |
00eaaa32 | 1226 | #ifdef SIGBUS |
f927c5ae | 1227 | signal (SIGBUS, fatal_error_signal); |
00eaaa32 | 1228 | #endif |
f927c5ae | 1229 | signal (SIGSEGV, fatal_error_signal); |
00eaaa32 | 1230 | #ifdef SIGSYS |
f927c5ae | 1231 | signal (SIGSYS, fatal_error_signal); |
00eaaa32 | 1232 | #endif |
f927c5ae JB |
1233 | signal (SIGTERM, fatal_error_signal); |
1234 | #ifdef SIGXCPU | |
1235 | signal (SIGXCPU, fatal_error_signal); | |
1236 | #endif | |
1237 | #ifdef SIGXFSZ | |
1238 | signal (SIGXFSZ, fatal_error_signal); | |
1239 | #endif /* SIGXFSZ */ | |
1240 | ||
271c7b7c RS |
1241 | #ifdef SIGDANGER |
1242 | /* This just means available memory is getting low. */ | |
1243 | signal (SIGDANGER, memory_warning_signal); | |
1244 | #endif | |
1245 | ||
f927c5ae | 1246 | #ifdef AIX |
56e034fa RS |
1247 | /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */ |
1248 | signal (SIGXCPU, fatal_error_signal); | |
0aef8561 | 1249 | #ifndef _I386 |
f927c5ae | 1250 | signal (SIGIOINT, fatal_error_signal); |
0aef8561 | 1251 | #endif |
f927c5ae JB |
1252 | signal (SIGGRANT, fatal_error_signal); |
1253 | signal (SIGRETRACT, fatal_error_signal); | |
1254 | signal (SIGSOUND, fatal_error_signal); | |
1255 | signal (SIGMSG, fatal_error_signal); | |
1256 | #endif /* AIX */ | |
1257 | } | |
1258 | ||
1259 | noninteractive1 = noninteractive; | |
1260 | ||
7db35a48 | 1261 | /* Perform basic initializations (not merely interning symbols). */ |
f927c5ae JB |
1262 | |
1263 | if (!initialized) | |
1264 | { | |
1265 | init_alloc_once (); | |
1266 | init_obarray (); | |
1267 | init_eval_once (); | |
e37d7195 | 1268 | init_character_once (); |
270ce821 KH |
1269 | init_charset_once (); |
1270 | init_coding_once (); | |
f927c5ae | 1271 | init_syntax_once (); /* Create standard syntax table. */ |
270ce821 | 1272 | init_category_once (); /* Create standard category table. */ |
7db35a48 | 1273 | /* Must be done before init_buffer. */ |
f927c5ae | 1274 | init_casetab_once (); |
7db35a48 PJ |
1275 | init_buffer_once (); /* Create buffer table and some buffers. */ |
1276 | init_minibuf_once (); /* Create list of minibuffers. */ | |
1277 | /* Must precede init_window_once. */ | |
1278 | ||
90d920b6 GM |
1279 | /* Call syms_of_xfaces before init_window_once because that |
1280 | function creates Vterminal_frame. Termcap frames now use | |
1281 | faces, and the face implementation uses some symbols as | |
1282 | face names. */ | |
90d920b6 | 1283 | syms_of_xfaces (); |
4ea81208 KL |
1284 | /* XXX syms_of_keyboard uses some symbols in keymap.c. It would |
1285 | be better to arrange things not to have this dependency. */ | |
1286 | syms_of_keymap (); | |
7a18af49 KR |
1287 | /* Call syms_of_keyboard before init_window_once because |
1288 | keyboard sets up symbols that include some face names that | |
1289 | the X support will want to use. This can happen when | |
1290 | CANNOT_DUMP is defined. */ | |
1291 | syms_of_keyboard (); | |
90d920b6 | 1292 | |
e0f712ba | 1293 | #ifdef MAC_OS8 |
c1e279c2 AC |
1294 | /* init_window_once calls make_terminal_frame which on Mac OS |
1295 | creates a full-fledge output_mac type frame. This does not | |
1296 | work correctly before syms_of_textprop, syms_of_macfns, | |
1297 | syms_of_ccl, syms_of_fontset, syms_of_xterm, syms_of_search, | |
b15325b2 | 1298 | syms_of_frame, mac_term_init, and init_keyboard have already |
c1e279c2 | 1299 | been called. */ |
1a578e9b AC |
1300 | syms_of_textprop (); |
1301 | syms_of_macfns (); | |
1302 | syms_of_ccl (); | |
1303 | syms_of_fontset (); | |
1304 | syms_of_macterm (); | |
1305 | syms_of_macmenu (); | |
ab271aca | 1306 | syms_of_macselect (); |
1a578e9b | 1307 | syms_of_search (); |
c1e279c2 | 1308 | syms_of_frame (); |
7db35a48 | 1309 | |
34e1bbc2 | 1310 | init_atimer (); |
b15325b2 | 1311 | mac_term_init (build_string ("Mac"), NULL, NULL); |
1a578e9b AC |
1312 | init_keyboard (); |
1313 | #endif | |
985773c9 MB |
1314 | /* Called before syms_of_fileio, because it sets up Qerror_condition. */ |
1315 | syms_of_data (); | |
1316 | syms_of_fileio (); | |
1317 | /* Before syms_of_coding to initialize Vgc_cons_threshold. */ | |
1318 | syms_of_alloc (); | |
1319 | /* Before syms_of_coding because it initializes Qcharsetp. */ | |
1320 | syms_of_charset (); | |
1321 | /* Before init_window_once, because it sets up the | |
1322 | Vcoding_system_hash_table. */ | |
1323 | syms_of_coding (); /* This should be after syms_of_fileio. */ | |
1a578e9b | 1324 | |
7db35a48 | 1325 | init_window_once (); /* Init the window system. */ |
680256a8 | 1326 | init_fileio_once (); /* Must precede any path manipulation. */ |
6b61353c KH |
1327 | #ifdef HAVE_WINDOW_SYSTEM |
1328 | init_fringe_once (); /* Swap bitmaps if necessary. */ | |
1329 | #endif /* HAVE_WINDOW_SYSTEM */ | |
f927c5ae JB |
1330 | } |
1331 | ||
1332 | init_alloc (); | |
68c45bf0 PE |
1333 | |
1334 | if (do_initial_setlocale) | |
1335 | { | |
1336 | fixup_locale (); | |
ca9c0567 PE |
1337 | Vsystem_messages_locale = Vprevious_system_messages_locale; |
1338 | Vsystem_time_locale = Vprevious_system_time_locale; | |
68c45bf0 PE |
1339 | } |
1340 | ||
f927c5ae JB |
1341 | init_eval (); |
1342 | init_data (); | |
ad067ea6 | 1343 | #ifdef CLASH_DETECTION |
01f67d2c | 1344 | init_filelock (); |
ad067ea6 | 1345 | #endif |
ab5d0358 | 1346 | init_atimer (); |
7074fde6 | 1347 | running_asynch_code = 0; |
0e956009 | 1348 | |
a08a816a RS |
1349 | /* Handle --unibyte and the EMACS_UNIBYTE envvar, |
1350 | but not while dumping. */ | |
e721aa94 | 1351 | if (1) |
a08a816a RS |
1352 | { |
1353 | int inhibit_unibyte = 0; | |
1354 | ||
1355 | /* --multibyte overrides EMACS_UNIBYTE. */ | |
1356 | if (argmatch (argv, argc, "-no-unibyte", "--no-unibyte", 4, NULL, &skip_args) | |
e721aa94 SM |
1357 | || argmatch (argv, argc, "-multibyte", "--multibyte", 4, NULL, &skip_args) |
1358 | /* Ignore EMACS_UNIBYTE before dumping. */ | |
1359 | || (!initialized && noninteractive)) | |
a08a816a RS |
1360 | inhibit_unibyte = 1; |
1361 | ||
1362 | /* --unibyte requests that we set up to do everything with single-byte | |
1363 | buffers and strings. We need to handle this before calling | |
1364 | init_lread, init_editfns and other places that generate Lisp strings | |
1365 | from text in the environment. */ | |
c0218e1b DL |
1366 | /* Actually this shouldn't be needed as of 20.4 in a generally |
1367 | unibyte environment. As handa says, environment values | |
1368 | aren't now decoded; also existing buffers are now made | |
1369 | unibyte during startup if .emacs sets unibyte. Tested with | |
1370 | 8-bit data in environment variables and /etc/passwd, setting | |
7db35a48 | 1371 | unibyte and Latin-1 in .emacs. -- Dave Love */ |
a08a816a RS |
1372 | if (argmatch (argv, argc, "-unibyte", "--unibyte", 4, NULL, &skip_args) |
1373 | || argmatch (argv, argc, "-no-multibyte", "--no-multibyte", 4, NULL, &skip_args) | |
1374 | || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte)) | |
1375 | { | |
1376 | Lisp_Object old_log_max; | |
1377 | Lisp_Object symbol, tail; | |
1378 | ||
1379 | symbol = intern ("default-enable-multibyte-characters"); | |
1380 | Fset (symbol, Qnil); | |
1381 | ||
6524291c KH |
1382 | if (initialized) |
1383 | { | |
1384 | /* Erase pre-dump messages in *Messages* now so no abort. */ | |
1385 | old_log_max = Vmessage_log_max; | |
1386 | XSETFASTINT (Vmessage_log_max, 0); | |
1387 | message_dolog ("", 0, 1, 0); | |
1388 | Vmessage_log_max = old_log_max; | |
1389 | } | |
a08a816a | 1390 | |
3e75bb9e | 1391 | for (tail = Vbuffer_alist; CONSP (tail); |
7539e11f | 1392 | tail = XCDR (tail)) |
a08a816a RS |
1393 | { |
1394 | Lisp_Object buffer; | |
1395 | ||
7539e11f | 1396 | buffer = Fcdr (XCAR (tail)); |
8f924df7 | 1397 | /* Make a multibyte buffer unibyte. */ |
f2b89e21 KH |
1398 | if (BUF_Z_BYTE (XBUFFER (buffer)) > BUF_Z (XBUFFER (buffer))) |
1399 | { | |
1400 | struct buffer *current = current_buffer; | |
1401 | ||
1402 | set_buffer_temp (XBUFFER (buffer)); | |
8f924df7 | 1403 | Fset_buffer_multibyte (Qnil); |
f2b89e21 KH |
1404 | set_buffer_temp (current); |
1405 | } | |
a08a816a RS |
1406 | } |
1407 | } | |
1408 | } | |
1409 | ||
956e3c7e | 1410 | no_loadup |
b96f9fb7 | 1411 | = argmatch (argv, argc, "-nl", "--no-loadup", 6, NULL, &skip_args); |
956e3c7e | 1412 | |
956e3c7e RS |
1413 | #ifdef HAVE_X_WINDOWS |
1414 | /* Stupid kludge to catch command-line display spec. We can't | |
1415 | handle this argument entirely in window system dependent code | |
1416 | because we don't even know which window system dependent code | |
1417 | to run until we've recognized this argument. */ | |
1418 | { | |
1419 | char *displayname = 0; | |
956e3c7e RS |
1420 | int count_before = skip_args; |
1421 | ||
1422 | /* Skip any number of -d options, but only use the last one. */ | |
1423 | while (1) | |
1424 | { | |
1425 | int count_before_this = skip_args; | |
1426 | ||
1427 | if (argmatch (argv, argc, "-d", "--display", 3, &displayname, &skip_args)) | |
1428 | display_arg = 1; | |
1429 | else if (argmatch (argv, argc, "-display", 0, 3, &displayname, &skip_args)) | |
1430 | display_arg = 1; | |
1431 | else | |
1432 | break; | |
1433 | ||
1434 | count_before = count_before_this; | |
1435 | } | |
1436 | ||
1437 | /* If we have the form --display=NAME, | |
1438 | convert it into -d name. | |
1439 | This requires inserting a new element into argv. */ | |
1440 | if (displayname != 0 && skip_args - count_before == 1) | |
1441 | { | |
1442 | char **new = (char **) xmalloc (sizeof (char *) * (argc + 2)); | |
1443 | int j; | |
1444 | ||
1445 | for (j = 0; j < count_before + 1; j++) | |
1446 | new[j] = argv[j]; | |
1447 | new[count_before + 1] = "-d"; | |
1448 | new[count_before + 2] = displayname; | |
1449 | for (j = count_before + 2; j <argc; j++) | |
1450 | new[j + 1] = argv[j]; | |
1451 | argv = new; | |
1452 | argc++; | |
1453 | } | |
1454 | /* Change --display to -d, when its arg is separate. */ | |
1455 | else if (displayname != 0 && skip_args > count_before | |
1456 | && argv[count_before + 1][1] == '-') | |
1457 | argv[count_before + 1] = "-d"; | |
1458 | ||
1459 | /* Don't actually discard this arg. */ | |
1460 | skip_args = count_before; | |
1461 | } | |
1462 | #endif | |
1463 | ||
1464 | /* argmatch must not be used after here, | |
1465 | except when bulding temacs | |
1466 | because the -d argument has not been skipped in skip_args. */ | |
1467 | ||
29b89fe0 RS |
1468 | #ifdef MSDOS |
1469 | /* Call early 'cause init_environment needs it. */ | |
1470 | init_dosfns (); | |
1471 | /* Set defaults for several environment variables. */ | |
18198bb2 RS |
1472 | if (initialized) |
1473 | init_environment (argc, argv, skip_args); | |
1474 | else | |
d1fc6752 | 1475 | tzset (); |
18198bb2 | 1476 | #endif /* MSDOS */ |
29b89fe0 | 1477 | |
8ba50e1a | 1478 | #ifdef WINDOWSNT |
9785d95b | 1479 | globals_of_w32 (); |
8ba50e1a | 1480 | /* Initialize environment from registry settings. */ |
a3a58294 | 1481 | init_environment (argv); |
7db35a48 | 1482 | init_ntproc (); /* must precede init_editfns. */ |
8ba50e1a GV |
1483 | #endif |
1484 | ||
3ec33130 | 1485 | #if defined (MAC_OSX) && defined (HAVE_CARBON) |
1000788b AC |
1486 | if (initialized) |
1487 | init_mac_osx_environment (); | |
1488 | #endif | |
1489 | ||
0e956009 JB |
1490 | /* egetenv is a pretty low-level facility, which may get called in |
1491 | many circumstances; it seems flimsy to put off initializing it | |
1492 | until calling init_callproc. */ | |
a13f8f50 | 1493 | set_initial_environment (); |
93aed04d | 1494 | /* AIX crashes are reported in system versions 3.2.3 and 3.2.4 |
5990851d KL |
1495 | if this is not done. Do it after set_global_environment so that we |
1496 | don't pollute Vglobal_environment. */ | |
fa09a82d | 1497 | /* Setting LANG here will defeat the startup locale processing... */ |
f2a77c3a | 1498 | #ifdef AIX |
93aed04d RS |
1499 | putenv ("LANG=C"); |
1500 | #endif | |
0e956009 | 1501 | |
7db35a48 | 1502 | init_buffer (); /* Init default directory of main buffer. */ |
ace40a69 | 1503 | |
7928f0b5 | 1504 | init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */ |
ace40a69 | 1505 | init_cmdargs (argc, argv, skip_args); /* Must precede init_lread. */ |
380e25b8 RS |
1506 | |
1507 | if (initialized) | |
1508 | { | |
7db35a48 | 1509 | /* Erase any pre-dump messages in the message log, to avoid confusion. */ |
380e25b8 RS |
1510 | Lisp_Object old_log_max; |
1511 | old_log_max = Vmessage_log_max; | |
1512 | XSETFASTINT (Vmessage_log_max, 0); | |
f6fe7bb5 | 1513 | message_dolog ("", 0, 1, 0); |
380e25b8 RS |
1514 | Vmessage_log_max = old_log_max; |
1515 | } | |
1516 | ||
7928f0b5 | 1517 | init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */ |
fb8e9847 | 1518 | init_lread (); |
f927c5ae | 1519 | |
8bb697c0 RS |
1520 | /* Intern the names of all standard functions and variables; |
1521 | define standard keys. */ | |
f927c5ae JB |
1522 | |
1523 | if (!initialized) | |
1524 | { | |
7db35a48 | 1525 | /* The basic levels of Lisp must come first. */ |
f927c5ae | 1526 | /* And data must come first of all |
7db35a48 | 1527 | for the sake of symbols like error-message. */ |
e0f712ba | 1528 | /* Called before init_window_once for Mac OS Classic. */ |
f927c5ae | 1529 | syms_of_data (); |
e37d7195 | 1530 | syms_of_chartab (); |
fb8e9847 | 1531 | syms_of_lread (); |
f927c5ae JB |
1532 | syms_of_print (); |
1533 | syms_of_eval (); | |
1534 | syms_of_fns (); | |
f927c5ae | 1535 | syms_of_floatfns (); |
f927c5ae | 1536 | |
f927c5ae JB |
1537 | syms_of_buffer (); |
1538 | syms_of_bytecode (); | |
1539 | syms_of_callint (); | |
1540 | syms_of_casefiddle (); | |
1541 | syms_of_casetab (); | |
1542 | syms_of_callproc (); | |
270ce821 KH |
1543 | syms_of_category (); |
1544 | syms_of_ccl (); | |
e37d7195 | 1545 | syms_of_character (); |
f927c5ae JB |
1546 | syms_of_cmds (); |
1547 | #ifndef NO_DIR_LIBRARY | |
1548 | syms_of_dired (); | |
1549 | #endif /* not NO_DIR_LIBRARY */ | |
1550 | syms_of_display (); | |
1551 | syms_of_doc (); | |
1552 | syms_of_editfns (); | |
1553 | syms_of_emacs (); | |
f927c5ae JB |
1554 | #ifdef CLASH_DETECTION |
1555 | syms_of_filelock (); | |
1556 | #endif /* CLASH_DETECTION */ | |
1557 | syms_of_indent (); | |
c2c5ed2c | 1558 | syms_of_insdel (); |
4ea81208 | 1559 | /* syms_of_keymap (); */ |
f927c5ae JB |
1560 | syms_of_macros (); |
1561 | syms_of_marker (); | |
1562 | syms_of_minibuf (); | |
f927c5ae | 1563 | syms_of_process (); |
f927c5ae | 1564 | syms_of_search (); |
1cbd5d9d | 1565 | syms_of_frame (); |
f927c5ae | 1566 | syms_of_syntax (); |
ed8dad6b | 1567 | syms_of_terminal (); |
0d934e7b | 1568 | syms_of_term (); |
f927c5ae | 1569 | syms_of_undo (); |
90d920b6 GM |
1570 | #ifdef HAVE_SOUND |
1571 | syms_of_sound (); | |
1572 | #endif | |
bef79ee4 | 1573 | syms_of_textprop (); |
9d100795 | 1574 | syms_of_composite (); |
f927c5ae JB |
1575 | #ifdef VMS |
1576 | syms_of_vmsproc (); | |
1577 | #endif /* VMS */ | |
05687c54 RS |
1578 | #ifdef WINDOWSNT |
1579 | syms_of_ntproc (); | |
1580 | #endif /* WINDOWSNT */ | |
f927c5ae JB |
1581 | syms_of_window (); |
1582 | syms_of_xdisp (); | |
d53f587b | 1583 | syms_of_font (); |
4fa9161d | 1584 | #ifdef HAVE_WINDOW_SYSTEM |
6b61353c KH |
1585 | syms_of_fringe (); |
1586 | syms_of_image (); | |
1587 | #endif /* HAVE_WINDOW_SYSTEM */ | |
f927c5ae | 1588 | #ifdef HAVE_X_WINDOWS |
72412588 | 1589 | syms_of_xterm (); |
f927c5ae | 1590 | syms_of_xfns (); |
270ce821 | 1591 | syms_of_fontset (); |
28b1b672 JD |
1592 | #ifdef HAVE_X_SM |
1593 | syms_of_xsmfns (); | |
1594 | #endif | |
72412588 JB |
1595 | #ifdef HAVE_X11 |
1596 | syms_of_xselect (); | |
1597 | #endif | |
f927c5ae JB |
1598 | #endif /* HAVE_X_WINDOWS */ |
1599 | ||
4e77ce60 | 1600 | syms_of_menu (); |
4e77ce60 | 1601 | |
1e9c210b | 1602 | #ifndef HAVE_NTGUI |
e0f712ba AC |
1603 | #ifndef MAC_OS |
1604 | /* Called before init_window_once for Mac OS Classic. */ | |
6c850f3c | 1605 | syms_of_xmenu (); |
1e9c210b | 1606 | #endif |
1a578e9b | 1607 | #endif |
6c850f3c | 1608 | |
8ba50e1a | 1609 | #ifdef HAVE_NTGUI |
fbd6baed GV |
1610 | syms_of_w32term (); |
1611 | syms_of_w32fns (); | |
fbd6baed GV |
1612 | syms_of_w32select (); |
1613 | syms_of_w32menu (); | |
02062ac3 | 1614 | syms_of_fontset (); |
8ba50e1a GV |
1615 | #endif /* HAVE_NTGUI */ |
1616 | ||
3ec33130 | 1617 | #if defined (MAC_OSX) && defined (HAVE_CARBON) |
e0f712ba AC |
1618 | syms_of_macterm (); |
1619 | syms_of_macfns (); | |
1620 | syms_of_macmenu (); | |
ab271aca | 1621 | syms_of_macselect (); |
e0f712ba | 1622 | syms_of_fontset (); |
3ec33130 | 1623 | #endif /* MAC_OSX && HAVE_CARBON */ |
e0f712ba | 1624 | |
033b73e2 MA |
1625 | #ifdef HAVE_DBUS |
1626 | syms_of_dbusbind (); | |
1627 | #endif /* HAVE_DBUS */ | |
1628 | ||
f927c5ae JB |
1629 | #ifdef SYMS_SYSTEM |
1630 | SYMS_SYSTEM; | |
1631 | #endif | |
1632 | ||
1633 | #ifdef SYMS_MACHINE | |
1634 | SYMS_MACHINE; | |
1635 | #endif | |
1636 | ||
1637 | keys_of_casefiddle (); | |
1638 | keys_of_cmds (); | |
1639 | keys_of_buffer (); | |
1640 | keys_of_keyboard (); | |
1641 | keys_of_keymap (); | |
f927c5ae | 1642 | keys_of_window (); |
9785d95b | 1643 | } |
3b6536b1 | 1644 | else |
9785d95b | 1645 | { |
3b6536b1 AS |
1646 | /* Initialization that must be done even if the global variable |
1647 | initialized is non zero. */ | |
9785d95b BK |
1648 | #ifdef HAVE_NTGUI |
1649 | globals_of_w32fns (); | |
1650 | globals_of_w32menu (); | |
52c7f9ee | 1651 | globals_of_w32select (); |
3b6536b1 | 1652 | #endif /* HAVE_NTGUI */ |
f927c5ae JB |
1653 | } |
1654 | ||
cf411e8d KH |
1655 | init_charset (); |
1656 | ||
f7cf8b20 | 1657 | init_editfns (); /* init_process uses Voperating_system_release. */ |
2491d293 | 1658 | init_process (); /* init_display uses add_keyboard_wait_descriptor. */ |
7db35a48 | 1659 | init_keyboard (); /* This too must precede init_sys_modes. */ |
8bb697c0 | 1660 | #ifdef VMS |
7db35a48 | 1661 | init_vmsproc (); /* And this too. */ |
8bb697c0 | 1662 | #endif /* VMS */ |
0a125897 KL |
1663 | if (!noninteractive) |
1664 | { | |
1665 | #ifdef VMS | |
1666 | init_vms_input ();/* init_display calls get_tty_size, that needs this. */ | |
1667 | #endif /* VMS */ | |
1668 | init_display (); /* Determine terminal type. Calls init_sys_modes. */ | |
1669 | } | |
90d920b6 | 1670 | init_fns (); |
8bb697c0 | 1671 | init_xdisp (); |
6b61353c KH |
1672 | #ifdef HAVE_WINDOW_SYSTEM |
1673 | init_fringe (); | |
1674 | init_image (); | |
1675 | #endif /* HAVE_WINDOW_SYSTEM */ | |
8bb697c0 | 1676 | init_macros (); |
8bb697c0 | 1677 | init_floatfns (); |
8bb697c0 RS |
1678 | #ifdef VMS |
1679 | init_vmsfns (); | |
1680 | #endif /* VMS */ | |
90d920b6 GM |
1681 | #ifdef HAVE_SOUND |
1682 | init_sound (); | |
1683 | #endif | |
75816372 | 1684 | init_window (); |
8bb697c0 | 1685 | |
f927c5ae JB |
1686 | if (!initialized) |
1687 | { | |
e2925360 | 1688 | char *file; |
7db35a48 | 1689 | /* Handle -l loadup, args passed by Makefile. */ |
df6530f8 | 1690 | if (argmatch (argv, argc, "-l", "--load", 3, &file, &skip_args)) |
f927c5ae | 1691 | Vtop_level = Fcons (intern ("load"), |
e2925360 | 1692 | Fcons (build_string (file), Qnil)); |
f927c5ae | 1693 | /* Unless next switch is -nl, load "loadup.el" first thing. */ |
956e3c7e | 1694 | if (! no_loadup) |
f927c5ae JB |
1695 | Vtop_level = Fcons (intern ("load"), |
1696 | Fcons (build_string ("loadup.el"), Qnil)); | |
f927c5ae JB |
1697 | } |
1698 | ||
93572b43 KH |
1699 | if (initialized) |
1700 | { | |
0269dedb RS |
1701 | #ifdef HAVE_TZSET |
1702 | { | |
1703 | /* If the execution TZ happens to be the same as the dump TZ, | |
1704 | change it to some other value and then change it back, | |
1705 | to force the underlying implementation to reload the TZ info. | |
1706 | This is needed on implementations that load TZ info from files, | |
1707 | since the TZ file contents may differ between dump and execution. */ | |
1708 | char *tz = getenv ("TZ"); | |
1709 | if (tz && !strcmp (tz, dump_tz)) | |
1710 | { | |
1711 | ++*tz; | |
1712 | tzset (); | |
1713 | --*tz; | |
1714 | } | |
1715 | } | |
1716 | #endif | |
93572b43 KH |
1717 | } |
1718 | ||
ecf783fa EZ |
1719 | /* Set up for profiling. This is known to work on FreeBSD, |
1720 | GNU/Linux and MinGW. It might work on some other systems too. | |
1721 | Give it a try and tell us if it works on your system. To compile | |
5a693cc0 EZ |
1722 | for profiling, add -pg to the switches your platform uses in |
1723 | CFLAGS and LDFLAGS. For example: | |
665b5955 | 1724 | `make CFLAGS="-pg -g -O -DPROFILING=1" LDFLAGS="-pg -g"'. */ |
ecf783fa | 1725 | #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__) |
e610ea43 RS |
1726 | #ifdef PROFILING |
1727 | if (initialized) | |
1728 | { | |
7db35a48 | 1729 | extern void _mcleanup (); |
ecf783fa EZ |
1730 | #ifdef __MINGW32__ |
1731 | extern unsigned char etext asm ("etext"); | |
1732 | #else | |
e610ea43 | 1733 | extern char etext; |
ecf783fa | 1734 | #endif |
90d920b6 | 1735 | extern void safe_bcopy (); |
67a5596f GM |
1736 | extern void dump_opcode_frequencies (); |
1737 | ||
e610ea43 | 1738 | atexit (_mcleanup); |
90d920b6 GM |
1739 | /* This uses safe_bcopy because that function comes first in the |
1740 | Emacs executable. It might be better to use something that | |
1741 | gives the start of the text segment, but start_of_text is not | |
1742 | defined on all systems now. */ | |
1743 | monstartup (safe_bcopy, &etext); | |
e610ea43 RS |
1744 | } |
1745 | else | |
1746 | moncontrol (0); | |
1747 | #endif | |
1748 | #endif | |
1749 | ||
f927c5ae JB |
1750 | initialized = 1; |
1751 | ||
e7536cff RS |
1752 | #ifdef LOCALTIME_CACHE |
1753 | /* Some versions of localtime have a bug. They cache the value of the time | |
279cc2b8 JB |
1754 | zone rather than looking it up every time. Since localtime() is |
1755 | called to bolt the undumping time into the undumped emacs, this | |
afe9fae9 | 1756 | results in localtime ignoring the TZ environment variable. |
7db35a48 | 1757 | This flushes the new TZ value into localtime. */ |
afe9fae9 | 1758 | tzset (); |
e7536cff | 1759 | #endif /* defined (LOCALTIME_CACHE) */ |
279cc2b8 | 1760 | |
f927c5ae JB |
1761 | /* Enter editor command loop. This never returns. */ |
1762 | Frecursive_edit (); | |
1763 | /* NOTREACHED */ | |
6bbd7a29 | 1764 | return 0; |
f927c5ae JB |
1765 | } |
1766 | \f | |
081bef73 RS |
1767 | /* Sort the args so we can find the most important ones |
1768 | at the beginning of argv. */ | |
1769 | ||
1770 | /* First, here's a table of all the standard options. */ | |
1771 | ||
1772 | struct standard_args | |
1773 | { | |
1774 | char *name; | |
1775 | char *longname; | |
1776 | int priority; | |
1777 | int nargs; | |
1778 | }; | |
1779 | ||
1780 | struct standard_args standard_args[] = | |
1781 | { | |
05922407 RS |
1782 | { "-version", "--version", 150, 0 }, |
1783 | #ifdef HAVE_SHM | |
1784 | { "-nl", "--no-shared-memory", 140, 0 }, | |
1785 | #endif | |
2725719a | 1786 | #ifdef VMS |
05922407 | 1787 | { "-map", "--map-data", 130, 0 }, |
2725719a | 1788 | #endif |
05922407 | 1789 | { "-t", "--terminal", 120, 1 }, |
400d6fa9 | 1790 | { "-nw", "--no-window-system", 110, 0 }, |
05922407 RS |
1791 | { "-nw", "--no-windows", 110, 0 }, |
1792 | { "-batch", "--batch", 100, 0 }, | |
6e910e07 | 1793 | { "-script", "--script", 100, 1 }, |
05922407 | 1794 | { "-help", "--help", 90, 0 }, |
956e3c7e RS |
1795 | { "-no-unibyte", "--no-unibyte", 83, 0 }, |
1796 | { "-multibyte", "--multibyte", 82, 0 }, | |
1797 | { "-unibyte", "--unibyte", 81, 0 }, | |
1798 | { "-no-multibyte", "--no-multibyte", 80, 0 }, | |
956e3c7e | 1799 | { "-nl", "--no-loadup", 70, 0 }, |
956e3c7e RS |
1800 | /* -d must come last before the options handled in startup.el. */ |
1801 | { "-d", "--display", 60, 1 }, | |
1802 | { "-display", 0, 60, 1 }, | |
05922407 | 1803 | /* Now for the options handled in startup.el. */ |
a1716a57 RS |
1804 | { "-Q", "--quick", 55, 0 }, |
1805 | { "-quick", 0, 55, 0 }, | |
081bef73 RS |
1806 | { "-q", "--no-init-file", 50, 0 }, |
1807 | { "-no-init-file", 0, 50, 0 }, | |
1808 | { "-no-site-file", "--no-site-file", 40, 0 }, | |
1809 | { "-u", "--user", 30, 1 }, | |
1810 | { "-user", 0, 30, 1 }, | |
1811 | { "-debug-init", "--debug-init", 20, 0 }, | |
f9e36a6d | 1812 | { "-nbi", "--no-bitmap-icon", 15, 0 }, |
f2bc3538 | 1813 | { "-iconic", "--iconic", 15, 0 }, |
a1716a57 | 1814 | { "-D", "--basic-display", 12, 0}, |
e09b9180 | 1815 | { "-basic-display", 0, 12, 0}, |
081bef73 RS |
1816 | { "-bg", "--background-color", 10, 1 }, |
1817 | { "-background", 0, 10, 1 }, | |
1818 | { "-fg", "--foreground-color", 10, 1 }, | |
1819 | { "-foreground", 0, 10, 1 }, | |
1820 | { "-bd", "--border-color", 10, 1 }, | |
1821 | { "-bw", "--border-width", 10, 1 }, | |
1822 | { "-ib", "--internal-border", 10, 1 }, | |
1823 | { "-ms", "--mouse-color", 10, 1 }, | |
1824 | { "-cr", "--cursor-color", 10, 1 }, | |
49ca717b | 1825 | { "-nbc", "--no-blinking-cursor", 10, 0 }, |
081bef73 RS |
1826 | { "-fn", "--font", 10, 1 }, |
1827 | { "-font", 0, 10, 1 }, | |
94452530 EZ |
1828 | { "-fs", "--fullscreen", 10, 0 }, |
1829 | { "-fw", "--fullwidth", 10, 0 }, | |
1830 | { "-fh", "--fullheight", 10, 0 }, | |
081bef73 RS |
1831 | { "-g", "--geometry", 10, 1 }, |
1832 | { "-geometry", 0, 10, 1 }, | |
1833 | { "-T", "--title", 10, 1 }, | |
ae63ae52 | 1834 | { "-title", 0, 10, 1 }, |
081bef73 RS |
1835 | { "-name", "--name", 10, 1 }, |
1836 | { "-xrm", "--xrm", 10, 1 }, | |
1540a61a | 1837 | { "-parent-id", "--parent-id", 10, 1 }, |
fcdeb5d9 RS |
1838 | { "-r", "--reverse-video", 5, 0 }, |
1839 | { "-rv", 0, 5, 0 }, | |
1840 | { "-reverse", 0, 5, 0 }, | |
ae63ae52 | 1841 | { "-hb", "--horizontal-scroll-bars", 5, 0 }, |
fcdeb5d9 | 1842 | { "-vb", "--vertical-scroll-bars", 5, 0 }, |
d20e1b1e | 1843 | { "-color", "--color", 5, 0}, |
16706228 JL |
1844 | { "-no-splash", "--no-splash", 3, 0 }, |
1845 | { "-no-desktop", "--no-desktop", 3, 0 }, | |
fcdeb5d9 RS |
1846 | /* These have the same priority as ordinary file name args, |
1847 | so they are not reordered with respect to those. */ | |
4af9e0b3 RS |
1848 | { "-L", "--directory", 0, 1 }, |
1849 | { "-directory", 0, 0, 1 }, | |
fcdeb5d9 RS |
1850 | { "-l", "--load", 0, 1 }, |
1851 | { "-load", 0, 0, 1 }, | |
21a4ff8e GM |
1852 | /* This has no longname, because using --scriptload confuses sort_args, |
1853 | because then the --script long option seems to match twice; ie | |
1854 | you can't have a long option which is a prefix of another long | |
1855 | option. In any case, this is entirely an internal option. */ | |
1856 | { "-scriptload", NULL, 0, 1 }, | |
fcdeb5d9 RS |
1857 | { "-f", "--funcall", 0, 1 }, |
1858 | { "-funcall", 0, 0, 1 }, | |
575985b1 | 1859 | { "-eval", "--eval", 0, 1 }, |
67a5596f | 1860 | { "-execute", "--execute", 0, 1 }, |
2e13f8e9 RS |
1861 | { "-find-file", "--find-file", 0, 1 }, |
1862 | { "-visit", "--visit", 0, 1 }, | |
67a5596f | 1863 | { "-file", "--file", 0, 1 }, |
fcdeb5d9 | 1864 | { "-insert", "--insert", 0, 1 }, |
f2bc3538 | 1865 | /* This should be processed after ordinary file name args and the like. */ |
fcdeb5d9 | 1866 | { "-kill", "--kill", -10, 0 }, |
081bef73 RS |
1867 | }; |
1868 | ||
1869 | /* Reorder the elements of ARGV (assumed to have ARGC elements) | |
1870 | so that the highest priority ones come first. | |
1871 | Do not change the order of elements of equal priority. | |
956e3c7e RS |
1872 | If an option takes an argument, keep it and its argument together. |
1873 | ||
1874 | If an option that takes no argument appears more | |
1875 | than once, eliminate all but one copy of it. */ | |
081bef73 RS |
1876 | |
1877 | static void | |
1878 | sort_args (argc, argv) | |
1879 | int argc; | |
1880 | char **argv; | |
1881 | { | |
1882 | char **new = (char **) xmalloc (sizeof (char *) * argc); | |
1883 | /* For each element of argv, | |
1884 | the corresponding element of options is: | |
1885 | 0 for an option that takes no arguments, | |
1886 | 1 for an option that takes one argument, etc. | |
1887 | -1 for an ordinary non-option argument. */ | |
6dad9359 | 1888 | int *options = (int *) xmalloc (sizeof (int) * argc); |
081bef73 RS |
1889 | int *priority = (int *) xmalloc (sizeof (int) * argc); |
1890 | int to = 1; | |
956e3c7e | 1891 | int incoming_used = 1; |
081bef73 RS |
1892 | int from; |
1893 | int i; | |
1894 | ||
1895 | /* Categorize all the options, | |
1896 | and figure out which argv elts are option arguments. */ | |
1897 | for (from = 1; from < argc; from++) | |
1898 | { | |
1899 | options[from] = -1; | |
fcdeb5d9 | 1900 | priority[from] = 0; |
081bef73 RS |
1901 | if (argv[from][0] == '-') |
1902 | { | |
1903 | int match, thislen; | |
1904 | char *equals; | |
1905 | ||
c96f26f4 RS |
1906 | /* If we have found "--", don't consider |
1907 | any more arguments as options. */ | |
249443b6 | 1908 | if (argv[from][1] == '-' && argv[from][2] == 0) |
c96f26f4 RS |
1909 | { |
1910 | /* Leave the "--", and everything following it, at the end. */ | |
1911 | for (; from < argc; from++) | |
1912 | { | |
1913 | priority[from] = -100; | |
1914 | options[from] = -1; | |
1915 | } | |
1916 | break; | |
1917 | } | |
1918 | ||
081bef73 RS |
1919 | /* Look for a match with a known old-fashioned option. */ |
1920 | for (i = 0; i < sizeof (standard_args) / sizeof (standard_args[0]); i++) | |
1921 | if (!strcmp (argv[from], standard_args[i].name)) | |
1922 | { | |
1923 | options[from] = standard_args[i].nargs; | |
1924 | priority[from] = standard_args[i].priority; | |
fd76ec52 RS |
1925 | if (from + standard_args[i].nargs >= argc) |
1926 | fatal ("Option `%s' requires an argument\n", argv[from]); | |
081bef73 RS |
1927 | from += standard_args[i].nargs; |
1928 | goto done; | |
1929 | } | |
1930 | ||
1931 | /* Look for a match with a known long option. | |
1932 | MATCH is -1 if no match so far, -2 if two or more matches so far, | |
1933 | >= 0 (the table index of the match) if just one match so far. */ | |
1934 | if (argv[from][1] == '-') | |
1935 | { | |
1936 | match = -1; | |
1937 | thislen = strlen (argv[from]); | |
1938 | equals = index (argv[from], '='); | |
1939 | if (equals != 0) | |
1940 | thislen = equals - argv[from]; | |
1941 | ||
f609ef57 KH |
1942 | for (i = 0; |
1943 | i < sizeof (standard_args) / sizeof (standard_args[0]); i++) | |
1944 | if (standard_args[i].longname | |
1945 | && !strncmp (argv[from], standard_args[i].longname, | |
1946 | thislen)) | |
081bef73 RS |
1947 | { |
1948 | if (match == -1) | |
1949 | match = i; | |
1950 | else | |
1951 | match = -2; | |
1952 | } | |
1953 | ||
1954 | /* If we found exactly one match, use that. */ | |
1955 | if (match >= 0) | |
1956 | { | |
1957 | options[from] = standard_args[match].nargs; | |
1958 | priority[from] = standard_args[match].priority; | |
1959 | /* If --OPTION=VALUE syntax is used, | |
1960 | this option uses just one argv element. */ | |
1961 | if (equals != 0) | |
1962 | options[from] = 0; | |
fd76ec52 RS |
1963 | if (from + options[from] >= argc) |
1964 | fatal ("Option `%s' requires an argument\n", argv[from]); | |
081bef73 RS |
1965 | from += options[from]; |
1966 | } | |
a09a5b5b GM |
1967 | /* FIXME When match < 0, shouldn't there be some error, |
1968 | or at least indication to the user that there was a | |
1969 | problem? */ | |
081bef73 RS |
1970 | } |
1971 | done: ; | |
1972 | } | |
1973 | } | |
1974 | ||
1975 | /* Copy the arguments, in order of decreasing priority, to NEW. */ | |
1976 | new[0] = argv[0]; | |
956e3c7e | 1977 | while (incoming_used < argc) |
081bef73 RS |
1978 | { |
1979 | int best = -1; | |
2c70c992 | 1980 | int best_priority = -9999; |
081bef73 RS |
1981 | |
1982 | /* Find the highest priority remaining option. | |
1983 | If several have equal priority, take the first of them. */ | |
1984 | for (from = 1; from < argc; from++) | |
1985 | { | |
1986 | if (argv[from] != 0 && priority[from] > best_priority) | |
1987 | { | |
1988 | best_priority = priority[from]; | |
1989 | best = from; | |
1990 | } | |
1991 | /* Skip option arguments--they are tied to the options. */ | |
1992 | if (options[from] > 0) | |
1993 | from += options[from]; | |
1994 | } | |
7db35a48 | 1995 | |
081bef73 RS |
1996 | if (best < 0) |
1997 | abort (); | |
1998 | ||
956e3c7e RS |
1999 | /* Copy the highest priority remaining option, with its args, to NEW. |
2000 | Unless it is a duplicate of the previous one. */ | |
2001 | if (! (options[best] == 0 | |
2002 | && ! strcmp (new[to - 1], argv[best]))) | |
2003 | { | |
2004 | new[to++] = argv[best]; | |
2005 | for (i = 0; i < options[best]; i++) | |
2006 | new[to++] = argv[best + i + 1]; | |
2007 | } | |
2008 | ||
2009 | incoming_used += 1 + (options[best] > 0 ? options[best] : 0); | |
081bef73 RS |
2010 | |
2011 | /* Clear out this option in ARGV. */ | |
2012 | argv[best] = 0; | |
2013 | for (i = 0; i < options[best]; i++) | |
2014 | argv[best + i + 1] = 0; | |
2015 | } | |
2016 | ||
81b7af72 RS |
2017 | /* If duplicate options were deleted, fill up extra space with null ptrs. */ |
2018 | while (to < argc) | |
2019 | new[to++] = 0; | |
2020 | ||
6dad9359 | 2021 | bcopy (new, argv, sizeof (char *) * argc); |
0bf591da | 2022 | |
68db37aa KS |
2023 | xfree (options); |
2024 | xfree (new); | |
2025 | xfree (priority); | |
081bef73 RS |
2026 | } |
2027 | \f | |
f927c5ae | 2028 | DEFUN ("kill-emacs", Fkill_emacs, Skill_emacs, 0, 1, "P", |
7db35a48 PJ |
2029 | doc: /* Exit the Emacs job and kill it. |
2030 | If ARG is an integer, return ARG as the exit program code. | |
b224de9b | 2031 | If ARG is a string, stuff it as keyboard input. |
7db35a48 PJ |
2032 | |
2033 | The value of `kill-emacs-hook', if not void, | |
2034 | is a list of functions (of no args), | |
2035 | all of which are called before Emacs is actually killed. */) | |
2036 | (arg) | |
f927c5ae JB |
2037 | Lisp_Object arg; |
2038 | { | |
f927c5ae JB |
2039 | struct gcpro gcpro1; |
2040 | ||
2041 | GCPRO1 (arg); | |
2042 | ||
2043 | if (feof (stdin)) | |
2044 | arg = Qt; | |
2045 | ||
2447c626 | 2046 | if (!NILP (Vrun_hooks) && !noninteractive) |
f927c5ae JB |
2047 | call1 (Vrun_hooks, intern ("kill-emacs-hook")); |
2048 | ||
f927c5ae JB |
2049 | UNGCPRO; |
2050 | ||
2051 | /* Is it really necessary to do this deassign | |
2052 | when we are going to exit anyway? */ | |
2053 | /* #ifdef VMS | |
2054 | stop_vms_input (); | |
2055 | #endif */ | |
40be253a | 2056 | |
d0068e25 | 2057 | shut_down_emacs (0, 0, STRINGP (arg) ? arg : Qnil); |
40be253a | 2058 | |
58545838 KH |
2059 | /* If we have an auto-save list file, |
2060 | kill it because we are exiting Emacs deliberately (not crashing). | |
2061 | Do it after shut_down_emacs, which does an auto-save. */ | |
2062 | if (STRINGP (Vauto_save_list_file_name)) | |
d5db4077 | 2063 | unlink (SDATA (Vauto_save_list_file_name)); |
58545838 | 2064 | |
fa439170 | 2065 | exit (INTEGERP (arg) ? XINT (arg) : EXIT_SUCCESS); |
f927c5ae | 2066 | /* NOTREACHED */ |
f1145b54 | 2067 | return Qnil; |
f927c5ae | 2068 | } |
40be253a JB |
2069 | |
2070 | ||
2071 | /* Perform an orderly shutdown of Emacs. Autosave any modified | |
2072 | buffers, kill any child processes, clean up the terminal modes (if | |
2073 | we're in the foreground), and other stuff like that. Don't perform | |
2074 | any redisplay; this may be called when Emacs is shutting down in | |
2075 | the background, or after its X connection has died. | |
2076 | ||
2077 | If SIG is a signal number, print a message for it. | |
2078 | ||
2079 | This is called by fatal signal handlers, X protocol error handlers, | |
2080 | and Fkill_emacs. */ | |
f7ab4e3d | 2081 | |
40be253a | 2082 | void |
f7ab4e3d | 2083 | shut_down_emacs (sig, no_x, stuff) |
41423a80 | 2084 | int sig, no_x; |
f7ab4e3d | 2085 | Lisp_Object stuff; |
40be253a | 2086 | { |
829d872b RS |
2087 | /* Prevent running of hooks from now on. */ |
2088 | Vrun_hooks = Qnil; | |
2089 | ||
9db03f6c KS |
2090 | /* Don't update display from now on. */ |
2091 | Vinhibit_redisplay = Qt; | |
2092 | ||
7db35a48 | 2093 | /* If we are controlling the terminal, reset terminal modes. */ |
40be253a JB |
2094 | #ifdef EMACS_HAVE_TTY_PGRP |
2095 | { | |
d04d81d2 RS |
2096 | int pgrp = EMACS_GETPGRP (0); |
2097 | ||
40be253a JB |
2098 | int tpgrp; |
2099 | if (EMACS_GET_TTY_PGRP (0, &tpgrp) != -1 | |
5a570e37 | 2100 | && tpgrp == pgrp) |
40be253a | 2101 | { |
28d440ab | 2102 | reset_all_sys_modes (); |
40be253a | 2103 | if (sig && sig != SIGTERM) |
6b61353c | 2104 | fprintf (stderr, "Fatal error (%d)", sig); |
40be253a JB |
2105 | } |
2106 | } | |
2107 | #else | |
2108 | fflush (stdout); | |
0a125897 | 2109 | reset_all_sys_modes (); |
40be253a JB |
2110 | #endif |
2111 | ||
f7ab4e3d RS |
2112 | stuff_buffered_input (stuff); |
2113 | ||
ba7c29f3 | 2114 | #ifdef subprocesses |
92d835a4 | 2115 | inhibit_sentinels = 1; |
ba7c29f3 | 2116 | #endif |
40be253a JB |
2117 | kill_buffer_processes (Qnil); |
2118 | Fdo_auto_save (Qt, Qnil); | |
2119 | ||
2120 | #ifdef CLASH_DETECTION | |
2121 | unlock_all_files (); | |
2122 | #endif | |
2123 | ||
2124 | #ifdef VMS | |
2125 | kill_vms_processes (); | |
2126 | #endif | |
2127 | ||
5e7f8733 | 2128 | #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */ |
41423a80 | 2129 | #ifdef HAVE_X_WINDOWS |
f7511647 | 2130 | /* It's not safe to call intern here. Maybe we are crashing. */ |
2246281f KL |
2131 | if (!noninteractive && SYMBOLP (Vinitial_window_system) |
2132 | && SCHARS (SYMBOL_NAME (Vinitial_window_system)) == 1 | |
2133 | && SREF (SYMBOL_NAME (Vinitial_window_system), 0) == 'x' | |
f7511647 | 2134 | && ! no_x) |
41423a80 RS |
2135 | Fx_close_current_connection (); |
2136 | #endif /* HAVE_X_WINDOWS */ | |
5e7f8733 | 2137 | #endif |
41423a80 | 2138 | |
40be253a JB |
2139 | #ifdef SIGIO |
2140 | /* There is a tendency for a SIGIO signal to arrive within exit, | |
2141 | and cause a SIGHUP because the input descriptor is already closed. */ | |
2142 | unrequest_sigio (); | |
2143 | signal (SIGIO, SIG_IGN); | |
2144 | #endif | |
41f339d4 RS |
2145 | |
2146 | #ifdef WINDOWSNT | |
2147 | term_ntproc (); | |
2148 | #endif | |
d546e578 | 2149 | |
cd8d4168 GM |
2150 | /* Do this only if terminating normally, we want glyph matrices |
2151 | etc. in a core dump. */ | |
200f868e | 2152 | if (sig == 0 || sig == SIGTERM) |
cd8d4168 GM |
2153 | { |
2154 | check_glyph_memory (); | |
2155 | check_message_stack (); | |
2156 | } | |
90d920b6 | 2157 | |
d546e578 EZ |
2158 | #ifdef MSDOS |
2159 | dos_cleanup (); | |
2160 | #endif | |
40be253a JB |
2161 | } |
2162 | ||
2163 | ||
f927c5ae JB |
2164 | \f |
2165 | #ifndef CANNOT_DUMP | |
f927c5ae JB |
2166 | |
2167 | #ifdef HAVE_SHM | |
2168 | ||
2169 | DEFUN ("dump-emacs-data", Fdump_emacs_data, Sdump_emacs_data, 1, 1, 0, | |
7db35a48 PJ |
2170 | doc: /* Dump current state of Emacs into data file FILENAME. |
2171 | This function exists on systems that use HAVE_SHM. */) | |
2172 | (filename) | |
c9aae259 | 2173 | Lisp_Object filename; |
f927c5ae | 2174 | { |
55697f5b | 2175 | extern char my_edata[]; |
f927c5ae | 2176 | Lisp_Object tem; |
f927c5ae | 2177 | |
4fab758d | 2178 | check_pure_size (); |
b7826503 | 2179 | CHECK_STRING (filename); |
c9aae259 | 2180 | filename = Fexpand_file_name (filename, Qnil); |
f927c5ae JB |
2181 | |
2182 | tem = Vpurify_flag; | |
2183 | Vpurify_flag = Qnil; | |
2184 | ||
2185 | fflush (stdout); | |
7db35a48 | 2186 | /* Tell malloc where start of impure now is. */ |
f927c5ae JB |
2187 | /* Also arrange for warnings when nearly out of space. */ |
2188 | #ifndef SYSTEM_MALLOC | |
1090a161 | 2189 | memory_warnings (my_edata, malloc_warning); |
f927c5ae | 2190 | #endif |
d5db4077 | 2191 | map_out_data (SDATA (filename)); |
f927c5ae JB |
2192 | |
2193 | Vpurify_flag = tem; | |
2194 | ||
2195 | return Qnil; | |
2196 | } | |
2197 | ||
2198 | #else /* not HAVE_SHM */ | |
2199 | ||
2200 | DEFUN ("dump-emacs", Fdump_emacs, Sdump_emacs, 2, 2, 0, | |
7db35a48 PJ |
2201 | doc: /* Dump current state of Emacs into executable file FILENAME. |
2202 | Take symbols from SYMFILE (presumably the file you executed to run Emacs). | |
2203 | This is used in the file `loadup.el' when building Emacs. | |
2204 | ||
2205 | You must run Emacs in batch mode in order to dump it. */) | |
2206 | (filename, symfile) | |
c9aae259 | 2207 | Lisp_Object filename, symfile; |
f927c5ae | 2208 | { |
55697f5b | 2209 | extern char my_edata[]; |
f927c5ae | 2210 | Lisp_Object tem; |
1b7ddf4f | 2211 | Lisp_Object symbol; |
331379bf | 2212 | int count = SPECPDL_INDEX (); |
4fab758d GM |
2213 | |
2214 | check_pure_size (); | |
f927c5ae | 2215 | |
87a98b1a RS |
2216 | if (! noninteractive) |
2217 | error ("Dumping Emacs works only in batch mode"); | |
2218 | ||
848a925e | 2219 | #ifdef GNU_LINUX |
dede2792 JD |
2220 | if (heap_bss_diff > MAX_HEAP_BSS_DIFF) |
2221 | { | |
2222 | fprintf (stderr, "**************************************************\n"); | |
2223 | fprintf (stderr, "Warning: Your system has a gap between BSS and the\n"); | |
e79beb56 | 2224 | fprintf (stderr, "heap (%lu bytes). This usually means that exec-shield\n", |
c37caf9d JD |
2225 | heap_bss_diff); |
2226 | fprintf (stderr, "or something similar is in effect. The dump may\n"); | |
e79beb56 | 2227 | fprintf (stderr, "fail because of this. See the section about\n"); |
c37caf9d | 2228 | fprintf (stderr, "exec-shield in etc/PROBLEMS for more information.\n"); |
dede2792 JD |
2229 | fprintf (stderr, "**************************************************\n"); |
2230 | } | |
848a925e | 2231 | #endif /* GNU_LINUX */ |
dede2792 | 2232 | |
1b7ddf4f RS |
2233 | /* Bind `command-line-processed' to nil before dumping, |
2234 | so that the dumped Emacs will process its command line | |
2235 | and set up to work with X windows if appropriate. */ | |
4aaa3607 | 2236 | symbol = intern ("command-line-processed"); |
1b7ddf4f RS |
2237 | specbind (symbol, Qnil); |
2238 | ||
b7826503 | 2239 | CHECK_STRING (filename); |
c9aae259 EN |
2240 | filename = Fexpand_file_name (filename, Qnil); |
2241 | if (!NILP (symfile)) | |
f927c5ae | 2242 | { |
b7826503 | 2243 | CHECK_STRING (symfile); |
d5db4077 | 2244 | if (SCHARS (symfile)) |
c9aae259 | 2245 | symfile = Fexpand_file_name (symfile, Qnil); |
f927c5ae JB |
2246 | } |
2247 | ||
2248 | tem = Vpurify_flag; | |
2249 | Vpurify_flag = Qnil; | |
2250 | ||
0269dedb RS |
2251 | #ifdef HAVE_TZSET |
2252 | set_time_zone_rule (dump_tz); | |
2253 | #ifndef LOCALTIME_CACHE | |
2254 | /* Force a tz reload, since set_time_zone_rule doesn't. */ | |
2255 | tzset (); | |
2256 | #endif | |
2257 | #endif | |
2258 | ||
f927c5ae JB |
2259 | fflush (stdout); |
2260 | #ifdef VMS | |
d5db4077 | 2261 | mapout_data (SDATA (filename)); |
f927c5ae | 2262 | #else |
7db35a48 | 2263 | /* Tell malloc where start of impure now is. */ |
f927c5ae JB |
2264 | /* Also arrange for warnings when nearly out of space. */ |
2265 | #ifndef SYSTEM_MALLOC | |
cc5f52cb RS |
2266 | #ifndef WINDOWSNT |
2267 | /* On Windows, this was done before dumping, and that once suffices. | |
2268 | Meanwhile, my_edata is not valid on Windows. */ | |
cb37cf78 | 2269 | memory_warnings (my_edata, malloc_warning); |
cc5f52cb | 2270 | #endif /* not WINDOWSNT */ |
15aaf1b5 | 2271 | #endif |
06ca62eb | 2272 | #if !defined (SYSTEM_MALLOC) && defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT |
aa477689 JD |
2273 | /* Pthread may call malloc before main, and then we will get an endless |
2274 | loop, because pthread_self (see alloc.c) calls malloc the first time | |
2275 | it is called on some systems. */ | |
2276 | reset_malloc_hooks (); | |
2277 | #endif | |
15aaf1b5 RS |
2278 | #ifdef DOUG_LEA_MALLOC |
2279 | malloc_state_ptr = malloc_get_state (); | |
f927c5ae | 2280 | #endif |
2b7377ca | 2281 | |
a74c5ec1 | 2282 | #ifdef USE_MMAP_FOR_BUFFERS |
2b7377ca GM |
2283 | mmap_set_vars (0); |
2284 | #endif | |
d5db4077 KR |
2285 | unexec (SDATA (filename), |
2286 | !NILP (symfile) ? SDATA (symfile) : 0, my_edata, 0, 0); | |
a74c5ec1 | 2287 | #ifdef USE_MMAP_FOR_BUFFERS |
2b7377ca GM |
2288 | mmap_set_vars (1); |
2289 | #endif | |
15aaf1b5 RS |
2290 | #ifdef DOUG_LEA_MALLOC |
2291 | free (malloc_state_ptr); | |
2292 | #endif | |
f927c5ae JB |
2293 | #endif /* not VMS */ |
2294 | ||
2295 | Vpurify_flag = tem; | |
2296 | ||
1b7ddf4f | 2297 | return unbind_to (count, Qnil); |
f927c5ae JB |
2298 | } |
2299 | ||
2300 | #endif /* not HAVE_SHM */ | |
2301 | ||
2302 | #endif /* not CANNOT_DUMP */ | |
2303 | \f | |
68c45bf0 PE |
2304 | #if HAVE_SETLOCALE |
2305 | /* Recover from setlocale (LC_ALL, ""). */ | |
2306 | void | |
2307 | fixup_locale () | |
2308 | { | |
68c45bf0 PE |
2309 | /* The Emacs Lisp reader needs LC_NUMERIC to be "C", |
2310 | so that numbers are read and printed properly for Emacs Lisp. */ | |
2311 | setlocale (LC_NUMERIC, "C"); | |
68c45bf0 PE |
2312 | } |
2313 | ||
0c8559bb PE |
2314 | /* Set system locale CATEGORY, with previous locale *PLOCALE, to |
2315 | DESIRED_LOCALE. */ | |
68c45bf0 PE |
2316 | static void |
2317 | synchronize_locale (category, plocale, desired_locale) | |
2318 | int category; | |
2319 | Lisp_Object *plocale; | |
2320 | Lisp_Object desired_locale; | |
2321 | { | |
0c8559bb PE |
2322 | if (! EQ (*plocale, desired_locale)) |
2323 | { | |
2324 | *plocale = desired_locale; | |
2325 | setlocale (category, (STRINGP (desired_locale) | |
3b6536b1 | 2326 | ? (char *) SDATA (desired_locale) |
0c8559bb PE |
2327 | : "")); |
2328 | } | |
68c45bf0 PE |
2329 | } |
2330 | ||
ca9c0567 | 2331 | /* Set system time locale to match Vsystem_time_locale, if possible. */ |
68c45bf0 | 2332 | void |
ca9c0567 | 2333 | synchronize_system_time_locale () |
68c45bf0 | 2334 | { |
ca9c0567 PE |
2335 | synchronize_locale (LC_TIME, &Vprevious_system_time_locale, |
2336 | Vsystem_time_locale); | |
68c45bf0 PE |
2337 | } |
2338 | ||
ca9c0567 PE |
2339 | /* Set system messages locale to match Vsystem_messages_locale, if |
2340 | possible. */ | |
68c45bf0 | 2341 | void |
ca9c0567 | 2342 | synchronize_system_messages_locale () |
68c45bf0 PE |
2343 | { |
2344 | #ifdef LC_MESSAGES | |
ca9c0567 PE |
2345 | synchronize_locale (LC_MESSAGES, &Vprevious_system_messages_locale, |
2346 | Vsystem_messages_locale); | |
68c45bf0 PE |
2347 | #endif |
2348 | } | |
2349 | #endif /* HAVE_SETLOCALE */ | |
2350 | \f | |
4b163808 | 2351 | #ifndef SEPCHAR |
f927c5ae JB |
2352 | #define SEPCHAR ':' |
2353 | #endif | |
2354 | ||
2355 | Lisp_Object | |
2356 | decode_env_path (evarname, defalt) | |
2357 | char *evarname, *defalt; | |
2358 | { | |
2359 | register char *path, *p; | |
213d0b1f | 2360 | Lisp_Object lpath, element, tem; |
f927c5ae | 2361 | |
2447c626 JB |
2362 | /* It's okay to use getenv here, because this function is only used |
2363 | to initialize variables when Emacs starts up, and isn't called | |
2364 | after that. */ | |
e065a56e JB |
2365 | if (evarname != 0) |
2366 | path = (char *) getenv (evarname); | |
2367 | else | |
2368 | path = 0; | |
f927c5ae JB |
2369 | if (!path) |
2370 | path = defalt; | |
6a30e6d6 RS |
2371 | #ifdef DOS_NT |
2372 | /* Ensure values from the environment use the proper directory separator. */ | |
2373 | if (path) | |
2374 | { | |
2375 | p = alloca (strlen (path) + 1); | |
2376 | strcpy (p, path); | |
2377 | path = p; | |
2378 | ||
2379 | if ('/' == DIRECTORY_SEP) | |
2380 | dostounix_filename (path); | |
2381 | else | |
2382 | unixtodos_filename (path); | |
2383 | } | |
2384 | #endif | |
f927c5ae JB |
2385 | lpath = Qnil; |
2386 | while (1) | |
2387 | { | |
2388 | p = index (path, SEPCHAR); | |
2389 | if (!p) p = path + strlen (path); | |
213d0b1f RS |
2390 | element = (p - path ? make_string (path, p - path) |
2391 | : build_string (".")); | |
2392 | ||
2393 | /* Add /: to the front of the name | |
2394 | if it would otherwise be treated as magic. */ | |
2395 | tem = Ffind_file_name_handler (element, Qt); | |
ca3df2d5 RS |
2396 | |
2397 | /* However, if the handler says "I'm safe", | |
2398 | don't bother adding /:. */ | |
2399 | if (SYMBOLP (tem)) | |
2400 | { | |
2401 | Lisp_Object prop; | |
2402 | prop = Fget (tem, intern ("safe-magic")); | |
2403 | if (! NILP (prop)) | |
2404 | tem = Qnil; | |
2405 | } | |
2406 | ||
213d0b1f RS |
2407 | if (! NILP (tem)) |
2408 | element = concat2 (build_string ("/:"), element); | |
2409 | ||
2410 | lpath = Fcons (element, lpath); | |
f927c5ae JB |
2411 | if (*p) |
2412 | path = p + 1; | |
2413 | else | |
2414 | break; | |
2415 | } | |
2416 | return Fnreverse (lpath); | |
2417 | } | |
2418 | ||
dfcf069d | 2419 | void |
f927c5ae JB |
2420 | syms_of_emacs () |
2421 | { | |
213d0b1f RS |
2422 | Qfile_name_handler_alist = intern ("file-name-handler-alist"); |
2423 | staticpro (&Qfile_name_handler_alist); | |
2424 | ||
83591e66 | 2425 | #ifndef CANNOT_DUMP |
f927c5ae JB |
2426 | #ifdef HAVE_SHM |
2427 | defsubr (&Sdump_emacs_data); | |
2428 | #else | |
2429 | defsubr (&Sdump_emacs); | |
83591e66 | 2430 | #endif |
f927c5ae JB |
2431 | #endif |
2432 | ||
2433 | defsubr (&Skill_emacs); | |
2434 | ||
59653951 | 2435 | defsubr (&Sinvocation_name); |
ace40a69 | 2436 | defsubr (&Sinvocation_directory); |
59653951 | 2437 | |
f927c5ae | 2438 | DEFVAR_LISP ("command-line-args", &Vcommand_line_args, |
2a9d2ed6 RS |
2439 | doc: /* Args passed by shell to Emacs, as a list of strings. |
2440 | Many arguments are deleted from the list as they are processed. */); | |
f927c5ae JB |
2441 | |
2442 | DEFVAR_LISP ("system-type", &Vsystem_type, | |
40a8993a NR |
2443 | doc: /* Value is symbol indicating type of operating system you are using. |
2444 | Special values: | |
2445 | `gnu/linux' compiled for a GNU/Linux system. | |
2446 | `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...). | |
2447 | `macos' compiled for Mac OS 9. | |
2448 | `ms-dos' compiled as an MS-DOS application. | |
2449 | `windows-nt' compiled as a native W32 application. | |
2450 | `cygwin' compiled using the Cygwin library. | |
e2e87e15 JB |
2451 | `vax-vms' or |
2452 | `axp-vms' compiled for a (Open)VMS system. | |
40a8993a | 2453 | Anything else indicates some sort of Unix system. */); |
f927c5ae JB |
2454 | Vsystem_type = intern (SYSTEM_TYPE); |
2455 | ||
271c7b7c | 2456 | DEFVAR_LISP ("system-configuration", &Vsystem_configuration, |
7db35a48 PJ |
2457 | doc: /* Value is string indicating configuration Emacs was built for. |
2458 | On MS-Windows, the value reflects the OS flavor and version on which | |
2459 | Emacs is running. */); | |
f7511647 | 2460 | Vsystem_configuration = build_string (EMACS_CONFIGURATION); |
271c7b7c | 2461 | |
f0fc0b1a | 2462 | DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options, |
7db35a48 | 2463 | doc: /* String containing the configuration options Emacs was built with. */); |
f0fc0b1a KH |
2464 | Vsystem_configuration_options = build_string (EMACS_CONFIG_OPTIONS); |
2465 | ||
f927c5ae | 2466 | DEFVAR_BOOL ("noninteractive", &noninteractive1, |
7db35a48 | 2467 | doc: /* Non-nil means Emacs is running without interactive terminal. */); |
e5d77022 | 2468 | |
e5d77022 | 2469 | DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook, |
e79beb56 | 2470 | doc: /* Hook to be run when `kill-emacs' is called. |
d77b70e5 | 2471 | Since `kill-emacs' may be invoked when the terminal is disconnected (or |
7db35a48 PJ |
2472 | in other similar situations), functions placed on this hook should not |
2473 | expect to be able to interact with the user. To ask for confirmation, | |
d77b70e5 MR |
2474 | see `kill-emacs-query-functions' instead. |
2475 | ||
2476 | The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */); | |
edc8ae07 | 2477 | Vkill_emacs_hook = Qnil; |
3005da00 RS |
2478 | |
2479 | DEFVAR_INT ("emacs-priority", &emacs_priority, | |
7db35a48 PJ |
2480 | doc: /* Priority for Emacs to run at. |
2481 | This value is effective only if set before Emacs is dumped, | |
2482 | and only if the Emacs executable is installed with setuid to permit | |
2483 | it to change priority. (Emacs sets its uid back to the real uid.) | |
2484 | Currently, you need to define SET_EMACS_PRIORITY in `config.h' | |
2485 | before you compile Emacs, to enable the code for this feature. */); | |
e7a9e1c3 | 2486 | emacs_priority = 0; |
074a066b GV |
2487 | |
2488 | DEFVAR_LISP ("path-separator", &Vpath_separator, | |
c7ed3276 EZ |
2489 | doc: /* String containing the character that separates directories in |
2490 | search paths, such as PATH and other similar environment variables. */); | |
074a066b GV |
2491 | { |
2492 | char c = SEPCHAR; | |
2493 | Vpath_separator = make_string (&c, 1); | |
2494 | } | |
59653951 | 2495 | |
f67de86f | 2496 | DEFVAR_LISP ("invocation-name", &Vinvocation_name, |
7db35a48 PJ |
2497 | doc: /* The program name that was used to run Emacs. |
2498 | Any directory names are omitted. */); | |
f67de86f RS |
2499 | |
2500 | DEFVAR_LISP ("invocation-directory", &Vinvocation_directory, | |
7db35a48 PJ |
2501 | doc: /* The directory in which the Emacs executable was found, to run it. |
2502 | The value is nil if that directory's name is not known. */); | |
f67de86f RS |
2503 | |
2504 | DEFVAR_LISP ("installation-directory", &Vinstallation_directory, | |
7db35a48 | 2505 | doc: /* A directory within which to look for the `lib-src' and `etc' directories. |
e58a672c RS |
2506 | This is non-nil when we can't find those directories in their standard |
2507 | installed locations, but we can find them near where the Emacs executable | |
2508 | was found. */); | |
07f4d123 | 2509 | Vinstallation_directory = Qnil; |
68c45bf0 | 2510 | |
ca9c0567 | 2511 | DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale, |
7db35a48 | 2512 | doc: /* System locale for messages. */); |
ca9c0567 | 2513 | Vsystem_messages_locale = Qnil; |
68c45bf0 | 2514 | |
ca9c0567 | 2515 | DEFVAR_LISP ("previous-system-messages-locale", |
7db35a48 PJ |
2516 | &Vprevious_system_messages_locale, |
2517 | doc: /* Most recently used system locale for messages. */); | |
ca9c0567 | 2518 | Vprevious_system_messages_locale = Qnil; |
68c45bf0 | 2519 | |
ca9c0567 | 2520 | DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale, |
7db35a48 | 2521 | doc: /* System locale for time. */); |
ca9c0567 | 2522 | Vsystem_time_locale = Qnil; |
68c45bf0 | 2523 | |
ca9c0567 | 2524 | DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale, |
7db35a48 | 2525 | doc: /* Most recently used system locale for time. */); |
ca9c0567 | 2526 | Vprevious_system_time_locale = Qnil; |
f927c5ae | 2527 | } |
6b61353c KH |
2528 | |
2529 | /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e | |
2530 | (do not change this comment) */ |