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, |
4e6835db | 3 | 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc. |
f927c5ae JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
684d6f5b | 9 | the Free Software Foundation; either version 3, or (at your option) |
f927c5ae JB |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
4fc5845f LK |
19 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
20 | Boston, MA 02110-1301, USA. */ | |
f927c5ae JB |
21 | |
22 | ||
68c45bf0 | 23 | #include <config.h> |
f927c5ae JB |
24 | #include <signal.h> |
25 | #include <errno.h> | |
f927c5ae JB |
26 | #include <stdio.h> |
27 | ||
28 | #include <sys/types.h> | |
29 | #include <sys/file.h> | |
30 | ||
31 | #ifdef VMS | |
32 | #include <ssdef.h> | |
33 | #endif | |
34 | ||
cda4a5fd GM |
35 | #ifdef HAVE_UNISTD_H |
36 | #include <unistd.h> | |
37 | #endif | |
38 | ||
488b7cb3 | 39 | #ifdef BSD_SYSTEM |
f927c5ae JB |
40 | #include <sys/ioctl.h> |
41 | #endif | |
42 | ||
edd3ff1d JR |
43 | #ifdef WINDOWSNT |
44 | #include <fcntl.h> | |
52c7f9ee JR |
45 | #include <windows.h> /* just for w32.h */ |
46 | #include "w32.h" | |
c68a2829 | 47 | #include "w32heap.h" /* for prototype of sbrk */ |
edd3ff1d JR |
48 | #endif |
49 | ||
f927c5ae JB |
50 | #include "lisp.h" |
51 | #include "commands.h" | |
bef79ee4 | 52 | #include "intervals.h" |
a08a816a | 53 | #include "buffer.h" |
3f6abfd7 | 54 | #include "window.h" |
f927c5ae | 55 | |
edc8ae07 | 56 | #include "systty.h" |
6c3a4e9d | 57 | #include "blockinput.h" |
8090eb09 | 58 | #include "syssignal.h" |
6c362a8b | 59 | #include "process.h" |
428a555e | 60 | #include "frame.h" |
5bda49c6 | 61 | #include "termhooks.h" |
dfcf069d | 62 | #include "keyboard.h" |
e35f6ff7 | 63 | #include "keymap.h" |
a41f8bed | 64 | |
68c45bf0 PE |
65 | #ifdef HAVE_SETLOCALE |
66 | #include <locale.h> | |
67 | #endif | |
68 | ||
53c58b5d RS |
69 | #ifdef HAVE_SETRLIMIT |
70 | #include <sys/time.h> | |
71 | #include <sys/resource.h> | |
72 | #endif | |
73 | ||
dede2792 JD |
74 | #ifdef HAVE_PERSONALITY_LINUX32 |
75 | #include <sys/personality.h> | |
76 | #endif | |
77 | ||
f927c5ae JB |
78 | #ifndef O_RDWR |
79 | #define O_RDWR 2 | |
80 | #endif | |
81 | ||
f95c3f91 | 82 | #ifdef HAVE_SETPGID |
2b7e8799 | 83 | #if !defined (USG) || defined (BSD_PGRPS) |
90553aa3 | 84 | #undef setpgrp |
f95c3f91 GM |
85 | #define setpgrp setpgid |
86 | #endif | |
2b7e8799 | 87 | #endif |
f95c3f91 | 88 | |
90553aa3 DL |
89 | extern void malloc_warning P_ ((char *)); |
90 | extern void set_time_zone_rule P_ ((char *)); | |
8892f40b GM |
91 | #ifdef HAVE_INDEX |
92 | extern char *index P_ ((const char *, int)); | |
93 | #endif | |
43165242 | 94 | |
30aa3f19 GM |
95 | /* Make these values available in GDB, which doesn't see macros. */ |
96 | ||
0dda8fd8 SM |
97 | #ifdef USE_LSB_TAG |
98 | int gdb_use_lsb = 1; | |
99 | #else | |
100 | int gdb_use_lsb = 0; | |
101 | #endif | |
102 | #ifdef NO_UNION_TYPE | |
103 | int gdb_use_union = 0; | |
104 | #else | |
105 | int gdb_use_union = 1; | |
106 | #endif | |
30aa3f19 GM |
107 | EMACS_INT gdb_valbits = VALBITS; |
108 | EMACS_INT gdb_gctypebits = GCTYPEBITS; | |
30aa3f19 GM |
109 | #ifdef DATA_SEG_BITS |
110 | EMACS_INT gdb_data_seg_bits = DATA_SEG_BITS; | |
111 | #else | |
df50cf6c | 112 | EMACS_INT gdb_data_seg_bits = 0; |
30aa3f19 | 113 | #endif |
00da0e4a | 114 | EMACS_INT PVEC_FLAG = PSEUDOVECTOR_FLAG; |
3fba6ca9 | 115 | EMACS_INT gdb_array_mark_flag = ARRAY_MARK_FLAG; |
6baa02d6 EZ |
116 | /* GDB might say "No enum type named pvec_type" if we don't have at |
117 | least one symbol with that type, and then xbacktrace could fail. */ | |
118 | enum pvec_type gdb_pvec_type = PVEC_TYPE_MASK; | |
30aa3f19 | 119 | |
7db35a48 | 120 | /* Command line args from shell, as list of strings. */ |
f927c5ae JB |
121 | Lisp_Object Vcommand_line_args; |
122 | ||
59653951 JB |
123 | /* The name under which Emacs was invoked, with any leading directory |
124 | names discarded. */ | |
125 | Lisp_Object Vinvocation_name; | |
126 | ||
ace40a69 RS |
127 | /* The directory name from which Emacs was invoked. */ |
128 | Lisp_Object Vinvocation_directory; | |
129 | ||
07f4d123 RS |
130 | /* The directory name in which to find subdirs such as lisp and etc. |
131 | nil means get them only from PATH_LOADSEARCH. */ | |
132 | Lisp_Object Vinstallation_directory; | |
133 | ||
e5d77022 JB |
134 | /* Hook run by `kill-emacs' before it does really anything. */ |
135 | Lisp_Object Vkill_emacs_hook; | |
136 | ||
7e9fa161 JB |
137 | /* Empty lisp strings. To avoid having to build any others. */ |
138 | Lisp_Object empty_unibyte_string, empty_multibyte_string; | |
f9a6326d | 139 | |
074a066b GV |
140 | /* Search path separator. */ |
141 | Lisp_Object Vpath_separator; | |
142 | ||
f927c5ae JB |
143 | /* Set nonzero after Emacs has started up the first time. |
144 | Prevents reinitialization of the Lisp world and keymaps | |
145 | on subsequent starts. */ | |
146 | int initialized; | |
147 | ||
15aaf1b5 RS |
148 | #ifdef DOUG_LEA_MALLOC |
149 | /* Preserves a pointer to the memory allocated that copies that | |
150 | static data inside glibc's malloc. */ | |
151 | void *malloc_state_ptr; | |
152 | /* From glibc, a routine that returns a copy of the malloc internal state. */ | |
153 | extern void *malloc_get_state (); | |
154 | /* From glibc, a routine that overwrites the malloc internal state. */ | |
fa8459a3 | 155 | extern int malloc_set_state (); |
7c9cd446 AS |
156 | /* Non-zero if the MALLOC_CHECK_ enviroment variable was set while |
157 | dumping. Used to work around a bug in glibc's malloc. */ | |
158 | int malloc_using_checking; | |
15aaf1b5 RS |
159 | #endif |
160 | ||
271c7b7c | 161 | /* Variable whose value is symbol giving operating system type. */ |
f927c5ae | 162 | Lisp_Object Vsystem_type; |
271c7b7c RS |
163 | |
164 | /* Variable whose value is string giving configuration built for. */ | |
165 | Lisp_Object Vsystem_configuration; | |
f0fc0b1a KH |
166 | |
167 | /* Variable whose value is string giving configuration options, | |
168 | for use when reporting bugs. */ | |
169 | Lisp_Object Vsystem_configuration_options; | |
170 | ||
213d0b1f RS |
171 | Lisp_Object Qfile_name_handler_alist; |
172 | ||
68c45bf0 | 173 | /* Current and previous system locales for messages and time. */ |
ca9c0567 PE |
174 | Lisp_Object Vsystem_messages_locale; |
175 | Lisp_Object Vprevious_system_messages_locale; | |
176 | Lisp_Object Vsystem_time_locale; | |
177 | Lisp_Object Vprevious_system_time_locale; | |
68c45bf0 | 178 | |
7d0393cf | 179 | /* If non-zero, emacs should not attempt to use a window-specific code, |
7db35a48 | 180 | but instead should use the virtual terminal under which it was started. */ |
f927c5ae JB |
181 | int inhibit_window_system; |
182 | ||
5aa7f46a JB |
183 | /* If nonzero, set Emacs to run at this priority. This is also used |
184 | in child_setup and sys_suspend to make sure subshells run at normal | |
7db35a48 | 185 | priority; those functions have their own extern declaration. */ |
31ade731 | 186 | EMACS_INT emacs_priority; |
3005da00 | 187 | |
7db35a48 PJ |
188 | /* If non-zero, a filter or a sentinel is running. Tested to save the match |
189 | data on the first attempt to change it inside asynchronous code. */ | |
7074fde6 FP |
190 | int running_asynch_code; |
191 | ||
647cec74 | 192 | #ifdef BSD_PGRPS |
9ae8f997 JB |
193 | /* See sysdep.c. */ |
194 | extern int inherited_pgroup; | |
195 | #endif | |
196 | ||
f927c5ae | 197 | #ifdef HAVE_X_WINDOWS |
7db35a48 | 198 | /* If non-zero, -d was specified, meaning we're using some window system. */ |
f927c5ae JB |
199 | int display_arg; |
200 | #endif | |
201 | ||
202 | /* An address near the bottom of the stack. | |
203 | Tells GC how to save a copy of the stack. */ | |
204 | char *stack_bottom; | |
205 | ||
dede2792 JD |
206 | /* The address where the heap starts (from the first sbrk (0) call). */ |
207 | static void *my_heap_start; | |
208 | ||
209 | /* The gap between BSS end and heap start as far as we can tell. */ | |
210 | static unsigned long heap_bss_diff; | |
211 | ||
212 | /* If the gap between BSS end and heap start is larger than this we try to | |
213 | work around it, and if that fails, output a warning in dump-emacs. */ | |
214 | #define MAX_HEAP_BSS_DIFF (1024*1024) | |
215 | ||
216 | ||
8ba50e1a | 217 | #ifdef HAVE_WINDOW_SYSTEM |
2246281f | 218 | extern Lisp_Object Vinitial_window_system; |
8ba50e1a | 219 | #endif /* HAVE_WINDOW_SYSTEM */ |
f927c5ae | 220 | |
1090a161 RS |
221 | extern Lisp_Object Vauto_save_list_file_name; |
222 | ||
9db03f6c KS |
223 | extern Lisp_Object Vinhibit_redisplay; |
224 | ||
f927c5ae JB |
225 | #ifdef USG_SHARED_LIBRARIES |
226 | /* If nonzero, this is the place to put the end of the writable segment | |
227 | at startup. */ | |
228 | ||
229 | unsigned int bss_end = 0; | |
230 | #endif | |
231 | ||
232 | /* Nonzero means running Emacs without interactive terminal. */ | |
233 | ||
234 | int noninteractive; | |
235 | ||
236 | /* Value of Lisp variable `noninteractive'. | |
237 | Normally same as C variable `noninteractive' | |
238 | but nothing terrible happens if user sets this one. */ | |
239 | ||
240 | int noninteractive1; | |
e29f86e4 RS |
241 | |
242 | /* Save argv and argc. */ | |
243 | char **initial_argv; | |
244 | int initial_argc; | |
081bef73 RS |
245 | |
246 | static void sort_args (); | |
dfcf069d | 247 | void syms_of_emacs (); |
bd4590ba | 248 | |
f8125c39 EZ |
249 | /* MSVC needs each string be shorter than 2048 bytes, so the usage |
250 | strings below are split to not overflow this limit. */ | |
73ebcd25 | 251 | #define USAGE1 "\ |
bd4590ba GM |
252 | Usage: %s [OPTION-OR-FILENAME]...\n\ |
253 | \n\ | |
254 | Run Emacs, the extensible, customizable, self-documenting real-time\n\ | |
255 | display editor. The recommended way to start Emacs for normal editing\n\ | |
256 | is with no options at all.\n\ | |
257 | \n\ | |
49ca717b | 258 | Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\ |
bd4590ba GM |
259 | read the main documentation for these command-line arguments.\n\ |
260 | \n\ | |
261 | Initialization options:\n\ | |
262 | \n\ | |
bb0b59bf EZ |
263 | --batch do not do interactive display; implies -q\n\ |
264 | --debug-init enable Emacs Lisp debugger for init file\n\ | |
265 | --display, -d DISPLAY use X server DISPLAY\n\ | |
266 | --multibyte, --no-unibyte inhibit the effect of EMACS_UNIBYTE\n\ | |
267 | --no-desktop do not load a saved desktop\n\ | |
268 | --no-init-file, -q load neither ~/.emacs nor default.el\n\ | |
269 | --no-shared-memory, -nl do not use shared memory\n\ | |
270 | --no-site-file do not load site-start.el\n\ | |
271 | --no-splash do not display a splash screen on startup\n\ | |
2ff86b4e | 272 | --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\ |
bae52079 | 273 | --quick, -Q equivalent to -q --no-site-file --no-splash\n\ |
bb0b59bf EZ |
274 | --script FILE run FILE as an Emacs Lisp script\n\ |
275 | --terminal, -t DEVICE use DEVICE for terminal I/O\n\ | |
bd4590ba | 276 | --unibyte, --no-multibyte run Emacs in unibyte mode\n\ |
bb0b59bf | 277 | --user, -u USER load ~USER/.emacs instead of your own\n\ |
f8125c39 EZ |
278 | \n%s" |
279 | ||
280 | #define USAGE2 "\ | |
bd4590ba GM |
281 | Action options:\n\ |
282 | \n\ | |
bb0b59bf | 283 | FILE visit FILE using find-file\n\ |
1dce1149 RS |
284 | +LINE go to line LINE in next FILE\n\ |
285 | +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\ | |
bb0b59bf EZ |
286 | --directory, -L DIR add DIR to variable load-path\n\ |
287 | --eval EXPR evaluate Emacs Lisp expression EXPR\n\ | |
288 | --execute EXPR evaluate Emacs Lisp expression EXPR\n\ | |
289 | --file FILE visit FILE using find-file\n\ | |
290 | --find-file FILE visit FILE using find-file\n\ | |
291 | --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\ | |
292 | --insert FILE insert contents of FILE into current buffer\n\ | |
293 | --kill exit without asking for confirmation\n\ | |
294 | --load, -l FILE load Emacs Lisp FILE using the load function\n\ | |
295 | --visit FILE visit FILE using find-file\n\ | |
73ebcd25 AI |
296 | \n" |
297 | ||
f8125c39 | 298 | #define USAGE3 "\ |
5b2ca26b | 299 | Display options:\n\ |
bd4590ba | 300 | \n\ |
bb0b59bf | 301 | --background-color, -bg COLOR window background color\n\ |
2ff86b4e NR |
302 | --basic-display, -D disable many display features;\n\ |
303 | used for debugging Emacs\n\ | |
bb0b59bf EZ |
304 | --border-color, -bd COLOR main border color\n\ |
305 | --border-width, -bw WIDTH width of main border\n\ | |
ced74849 | 306 | --color, --color=MODE override color mode for character terminals;\n\ |
bb0b59bf EZ |
307 | MODE defaults to `auto', and can also\n\ |
308 | be `never', `auto', `always',\n\ | |
309 | or a mode name like `ansi8'\n\ | |
310 | --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\ | |
311 | --font, -fn FONT default font; must be fixed-width\n\ | |
312 | --foreground-color, -fg COLOR window foreground color\n\ | |
313 | --fullheight, -fh make the first frame high as the screen\n\ | |
314 | --fullscreen, -fs make first frame fullscreen\n\ | |
315 | --fullwidth, -fw make the first frame wide as the screen\n\ | |
316 | --geometry, -g GEOMETRY window geometry\n\ | |
f9e36a6d | 317 | --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\ |
bb0b59bf EZ |
318 | --iconic start Emacs in iconified state\n\ |
319 | --internal-border, -ib WIDTH width between text and main border\n\ | |
320 | --line-spacing, -lsp PIXELS additional space to put between lines\n\ | |
321 | --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\ | |
322 | --name NAME title for initial Emacs frame\n\ | |
49ca717b | 323 | --no-blinking-cursor, -nbc disable blinking cursor\n\ |
bb0b59bf EZ |
324 | --reverse-video, -r, -rv switch foreground and background\n\ |
325 | --title, -T TITLE title for initial Emacs frame\n\ | |
326 | --vertical-scroll-bars, -vb enable vertical scroll bars\n\ | |
327 | --xrm XRESOURCES set additional X resources\n\ | |
328 | --help display this help and exit\n\ | |
329 | --version output version information and exit\n\ | |
07beadff JR |
330 | \n" |
331 | ||
332 | #define USAGE4 "\ | |
bd4590ba GM |
333 | You can generally also specify long option names with a single -; for\n\ |
334 | example, -batch as well as --batch. You can use any unambiguous\n\ | |
335 | abbreviation for a --option.\n\ | |
336 | \n\ | |
337 | Various environment variables and window system resources also affect\n\ | |
338 | Emacs' operation. See the main documentation.\n\ | |
07beadff | 339 | \n\ |
d883731c | 340 | Report bugs to %s. First, please see the Bugs\n\ |
bd4590ba GM |
341 | section of the Emacs manual or the file BUGS.\n" |
342 | ||
f927c5ae | 343 | \f |
7db35a48 | 344 | /* Signal code for the fatal signal that was received. */ |
f927c5ae JB |
345 | int fatal_error_code; |
346 | ||
7db35a48 | 347 | /* Nonzero if handling a fatal error already. */ |
f927c5ae JB |
348 | int fatal_error_in_progress; |
349 | ||
7db35a48 | 350 | /* If non-null, call this function from fatal_error_signal before |
4fab758d GM |
351 | committing suicide. */ |
352 | ||
353 | void (*fatal_error_signal_hook) P_ ((void)); | |
354 | ||
333f1b6f JD |
355 | #ifdef HAVE_GTK_AND_PTHREAD |
356 | /* When compiled with GTK and running under Gnome, multiple threads meay be | |
357 | created. Keep track of our main thread to make sure signals are delivered | |
358 | to it (see syssignal.h). */ | |
359 | ||
360 | pthread_t main_thread; | |
361 | #endif | |
362 | ||
4fab758d | 363 | |
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 PE |
423 | |
424 | #ifndef ABORT_RETURN_TYPE | |
425 | #define ABORT_RETURN_TYPE void | |
426 | #endif | |
427 | ||
428 | ABORT_RETURN_TYPE | |
fcf01ad3 RS |
429 | abort () |
430 | { | |
431 | kill (getpid (), SIGABRT); | |
37e2fdd2 RS |
432 | /* This shouldn't be executed, but it prevents a warning. */ |
433 | exit (1); | |
fcf01ad3 | 434 | } |
c9fe9cce | 435 | #endif |
fcf01ad3 | 436 | |
f927c5ae | 437 | \f |
7db35a48 | 438 | /* Code for dealing with Lisp access to the Unix command line. */ |
f927c5ae | 439 | |
dfcf069d | 440 | static void |
f927c5ae JB |
441 | init_cmdargs (argc, argv, skip_args) |
442 | int argc; | |
443 | char **argv; | |
444 | int skip_args; | |
445 | { | |
446 | register int i; | |
213d0b1f | 447 | Lisp_Object name, dir, tem; |
aed13378 | 448 | int count = SPECPDL_INDEX (); |
213d0b1f | 449 | Lisp_Object raw_name; |
f927c5ae | 450 | |
e29f86e4 RS |
451 | initial_argv = argv; |
452 | initial_argc = argc; | |
453 | ||
213d0b1f RS |
454 | raw_name = build_string (argv[0]); |
455 | ||
456 | /* Add /: to the front of the name | |
457 | if it would otherwise be treated as magic. */ | |
458 | tem = Ffind_file_name_handler (raw_name, Qt); | |
459 | if (! NILP (tem)) | |
460 | raw_name = concat2 (build_string ("/:"), raw_name); | |
461 | ||
462 | Vinvocation_name = Ffile_name_nondirectory (raw_name); | |
463 | Vinvocation_directory = Ffile_name_directory (raw_name); | |
464 | ||
ace40a69 RS |
465 | /* If we got no directory in argv[0], search PATH to find where |
466 | Emacs actually came from. */ | |
467 | if (NILP (Vinvocation_directory)) | |
468 | { | |
469 | Lisp_Object found; | |
470 | int yes = openp (Vexec_path, Vinvocation_name, | |
10c0915e | 471 | Vexec_suffixes, &found, make_number (X_OK)); |
e443f843 | 472 | if (yes == 1) |
213d0b1f RS |
473 | { |
474 | /* Add /: to the front of the name | |
475 | if it would otherwise be treated as magic. */ | |
476 | tem = Ffind_file_name_handler (found, Qt); | |
477 | if (! NILP (tem)) | |
478 | found = concat2 (build_string ("/:"), found); | |
479 | Vinvocation_directory = Ffile_name_directory (found); | |
480 | } | |
ace40a69 | 481 | } |
59653951 | 482 | |
4133b300 RS |
483 | if (!NILP (Vinvocation_directory) |
484 | && NILP (Ffile_name_absolute_p (Vinvocation_directory))) | |
213d0b1f RS |
485 | /* Emacs was started with relative path, like ./emacs. |
486 | Make it absolute. */ | |
4133b300 RS |
487 | Vinvocation_directory = Fexpand_file_name (Vinvocation_directory, Qnil); |
488 | ||
07f4d123 RS |
489 | Vinstallation_directory = Qnil; |
490 | ||
491 | if (!NILP (Vinvocation_directory)) | |
492 | { | |
493 | dir = Vinvocation_directory; | |
494 | name = Fexpand_file_name (Vinvocation_name, dir); | |
495 | while (1) | |
496 | { | |
f5ab9736 | 497 | Lisp_Object tem, lib_src_exists; |
07f4d123 RS |
498 | Lisp_Object etc_exists, info_exists; |
499 | ||
f5ab9736 RS |
500 | /* See if dir contains subdirs for use by Emacs. |
501 | Check for the ones that would exist in a build directory, | |
502 | not including lisp and info. */ | |
503 | tem = Fexpand_file_name (build_string ("lib-src"), dir); | |
504 | lib_src_exists = Ffile_exists_p (tem); | |
de004cc6 | 505 | |
70344b34 | 506 | #ifdef MSDOS |
de004cc6 RS |
507 | /* MSDOS installations frequently remove lib-src, but we still |
508 | must set installation-directory, or else info won't find | |
509 | its files (it uses the value of installation-directory). */ | |
510 | tem = Fexpand_file_name (build_string ("info"), dir); | |
511 | info_exists = Ffile_exists_p (tem); | |
70344b34 EZ |
512 | #else |
513 | info_exists = Qnil; | |
514 | #endif | |
de004cc6 RS |
515 | |
516 | if (!NILP (lib_src_exists) || !NILP (info_exists)) | |
07f4d123 | 517 | { |
f5ab9736 RS |
518 | tem = Fexpand_file_name (build_string ("etc"), dir); |
519 | etc_exists = Ffile_exists_p (tem); | |
520 | if (!NILP (etc_exists)) | |
07f4d123 | 521 | { |
f5ab9736 RS |
522 | Vinstallation_directory |
523 | = Ffile_name_as_directory (dir); | |
524 | break; | |
07f4d123 RS |
525 | } |
526 | } | |
527 | ||
528 | /* See if dir's parent contains those subdirs. */ | |
f5ab9736 RS |
529 | tem = Fexpand_file_name (build_string ("../lib-src"), dir); |
530 | lib_src_exists = Ffile_exists_p (tem); | |
de004cc6 | 531 | |
70344b34 EZ |
532 | |
533 | #ifdef MSDOS | |
534 | /* See the MSDOS commentary above. */ | |
de004cc6 RS |
535 | tem = Fexpand_file_name (build_string ("../info"), dir); |
536 | info_exists = Ffile_exists_p (tem); | |
70344b34 EZ |
537 | #else |
538 | info_exists = Qnil; | |
539 | #endif | |
de004cc6 RS |
540 | |
541 | if (!NILP (lib_src_exists) || !NILP (info_exists)) | |
07f4d123 | 542 | { |
f5ab9736 RS |
543 | tem = Fexpand_file_name (build_string ("../etc"), dir); |
544 | etc_exists = Ffile_exists_p (tem); | |
545 | if (!NILP (etc_exists)) | |
07f4d123 | 546 | { |
f5ab9736 RS |
547 | tem = Fexpand_file_name (build_string (".."), dir); |
548 | Vinstallation_directory | |
549 | = Ffile_name_as_directory (tem); | |
550 | break; | |
07f4d123 RS |
551 | } |
552 | } | |
553 | ||
554 | /* If the Emacs executable is actually a link, | |
555 | next try the dir that the link points into. */ | |
556 | tem = Ffile_symlink_p (name); | |
557 | if (!NILP (tem)) | |
558 | { | |
260ec24d | 559 | name = Fexpand_file_name (tem, dir); |
07f4d123 RS |
560 | dir = Ffile_name_directory (name); |
561 | } | |
562 | else | |
563 | break; | |
564 | } | |
565 | } | |
566 | ||
f927c5ae JB |
567 | Vcommand_line_args = Qnil; |
568 | ||
569 | for (i = argc - 1; i >= 0; i--) | |
570 | { | |
571 | if (i == 0 || i > skip_args) | |
a520393d KH |
572 | /* For the moment, we keep arguments as is in unibyte strings. |
573 | They are decoded in the function command-line after we know | |
574 | locale-coding-system. */ | |
f927c5ae | 575 | Vcommand_line_args |
68db37aa | 576 | = Fcons (make_unibyte_string (argv[i], strlen (argv[i])), |
a520393d | 577 | Vcommand_line_args); |
f927c5ae | 578 | } |
213d0b1f RS |
579 | |
580 | unbind_to (count, Qnil); | |
f927c5ae | 581 | } |
59653951 JB |
582 | |
583 | DEFUN ("invocation-name", Finvocation_name, Sinvocation_name, 0, 0, 0, | |
7db35a48 PJ |
584 | doc: /* Return the program name that was used to run Emacs. |
585 | Any directory names are omitted. */) | |
586 | () | |
59653951 JB |
587 | { |
588 | return Fcopy_sequence (Vinvocation_name); | |
589 | } | |
590 | ||
ace40a69 | 591 | DEFUN ("invocation-directory", Finvocation_directory, Sinvocation_directory, |
7db35a48 PJ |
592 | 0, 0, 0, |
593 | doc: /* Return the directory name in which the Emacs executable was located. */) | |
594 | () | |
ace40a69 RS |
595 | { |
596 | return Fcopy_sequence (Vinvocation_directory); | |
597 | } | |
598 | ||
f927c5ae JB |
599 | \f |
600 | #ifdef VMS | |
601 | #ifdef LINK_CRTL_SHARE | |
34035df3 | 602 | #ifdef SHARABLE_LIB_BUG |
f927c5ae | 603 | extern noshare char **environ; |
34035df3 | 604 | #endif /* SHARABLE_LIB_BUG */ |
f927c5ae JB |
605 | #endif /* LINK_CRTL_SHARE */ |
606 | #endif /* VMS */ | |
607 | ||
0269dedb RS |
608 | #ifdef HAVE_TZSET |
609 | /* A valid but unlikely value for the TZ environment value. | |
610 | It is OK (though a bit slower) if the user actually chooses this value. */ | |
611 | static char dump_tz[] = "UtC0"; | |
612 | #endif | |
613 | ||
a90538cb | 614 | #ifndef ORDINARY_LINK |
efd241cc RS |
615 | /* We don't include crtbegin.o and crtend.o in the link, |
616 | so these functions and variables might be missed. | |
617 | Provide dummy definitions to avoid error. | |
618 | (We don't have any real constructors or destructors.) */ | |
619 | #ifdef __GNUC__ | |
46e65b73 | 620 | #ifndef GCC_CTORS_IN_LIBC |
dfcf069d | 621 | void __do_global_ctors () |
efd241cc | 622 | {} |
dfcf069d | 623 | void __do_global_ctors_aux () |
c83a7064 | 624 | {} |
dfcf069d | 625 | void __do_global_dtors () |
33143604 | 626 | {} |
554061d8 | 627 | /* GNU/Linux has a bug in its library; avoid an error. */ |
8a2a6032 | 628 | #ifndef GNU_LINUX |
c83a7064 | 629 | char * __CTOR_LIST__[2] = { (char *) (-1), 0 }; |
64c1864a | 630 | #endif |
c83a7064 | 631 | char * __DTOR_LIST__[2] = { (char *) (-1), 0 }; |
46e65b73 | 632 | #endif /* GCC_CTORS_IN_LIBC */ |
dfcf069d | 633 | void __main () |
efd241cc | 634 | {} |
efd241cc | 635 | #endif /* __GNUC__ */ |
a90538cb | 636 | #endif /* ORDINARY_LINK */ |
efd241cc | 637 | |
e2925360 KH |
638 | /* Test whether the next argument in ARGV matches SSTR or a prefix of |
639 | LSTR (at least MINLEN characters). If so, then if VALPTR is non-null | |
640 | (the argument is supposed to have a value) store in *VALPTR either | |
641 | the next argument or the portion of this one after the equal sign. | |
642 | ARGV is read starting at position *SKIPPTR; this index is advanced | |
643 | by the number of arguments used. | |
644 | ||
645 | Too bad we can't just use getopt for all of this, but we don't have | |
646 | enough information to do it right. */ | |
081bef73 | 647 | |
e2925360 | 648 | static int |
df6530f8 | 649 | argmatch (argv, argc, sstr, lstr, minlen, valptr, skipptr) |
e2925360 | 650 | char **argv; |
df6530f8 | 651 | int argc; |
e2925360 KH |
652 | char *sstr; |
653 | char *lstr; | |
654 | int minlen; | |
655 | char **valptr; | |
656 | int *skipptr; | |
657 | { | |
6bbd7a29 | 658 | char *p = NULL; |
e2925360 | 659 | int arglen; |
df6530f8 RS |
660 | char *arg; |
661 | ||
662 | /* Don't access argv[argc]; give up in advance. */ | |
663 | if (argc <= *skipptr + 1) | |
664 | return 0; | |
665 | ||
666 | arg = argv[*skipptr+1]; | |
e2925360 KH |
667 | if (arg == NULL) |
668 | return 0; | |
669 | if (strcmp (arg, sstr) == 0) | |
670 | { | |
671 | if (valptr != NULL) | |
672 | { | |
673 | *valptr = argv[*skipptr+2]; | |
674 | *skipptr += 2; | |
675 | } | |
676 | else | |
677 | *skipptr += 1; | |
678 | return 1; | |
679 | } | |
680 | arglen = (valptr != NULL && (p = index (arg, '=')) != NULL | |
681 | ? p - arg : strlen (arg)); | |
c03e1113 | 682 | if (lstr == 0 || arglen < minlen || strncmp (arg, lstr, arglen) != 0) |
e2925360 KH |
683 | return 0; |
684 | else if (valptr == NULL) | |
685 | { | |
686 | *skipptr += 1; | |
687 | return 1; | |
688 | } | |
689 | else if (p != NULL) | |
690 | { | |
691 | *valptr = p+1; | |
692 | *skipptr += 1; | |
693 | return 1; | |
694 | } | |
695 | else if (argv[*skipptr+2] != NULL) | |
696 | { | |
697 | *valptr = argv[*skipptr+2]; | |
698 | *skipptr += 2; | |
699 | return 1; | |
700 | } | |
701 | else | |
702 | { | |
703 | return 0; | |
704 | } | |
705 | } | |
706 | ||
b6779252 | 707 | #ifdef DOUG_LEA_MALLOC |
f927c5ae | 708 | |
b6779252 KH |
709 | /* malloc can be invoked even before main (e.g. by the dynamic |
710 | linker), so the dumped malloc state must be restored as early as | |
711 | possible using this special hook. */ | |
712 | ||
713 | static void | |
714 | malloc_initialize_hook () | |
715 | { | |
1f9c3929 | 716 | #ifndef USE_CRT_DLL |
b6779252 | 717 | extern char **environ; |
1f9c3929 | 718 | #endif |
6000fe37 | 719 | |
15aaf1b5 RS |
720 | if (initialized) |
721 | { | |
7c9cd446 AS |
722 | if (!malloc_using_checking) |
723 | /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be | |
724 | ignored if the heap to be restored was constructed without | |
d942e12a AS |
725 | malloc checking. Can't use unsetenv, since that calls malloc. */ |
726 | { | |
727 | char **p; | |
728 | ||
a57c4026 | 729 | for (p = environ; p && *p; p++) |
d942e12a AS |
730 | if (strncmp (*p, "MALLOC_CHECK_=", 14) == 0) |
731 | { | |
732 | do | |
733 | *p = p[1]; | |
734 | while (*++p); | |
735 | break; | |
736 | } | |
737 | } | |
b6779252 | 738 | |
15aaf1b5 | 739 | malloc_set_state (malloc_state_ptr); |
68db37aa | 740 | #ifndef XMALLOC_OVERRUN_CHECK |
15aaf1b5 | 741 | free (malloc_state_ptr); |
68db37aa | 742 | #endif |
15aaf1b5 | 743 | } |
7c9cd446 | 744 | else |
dede2792 JD |
745 | { |
746 | if (my_heap_start == 0) | |
747 | my_heap_start = sbrk (0); | |
748 | malloc_using_checking = getenv ("MALLOC_CHECK_") != NULL; | |
749 | } | |
b6779252 KH |
750 | } |
751 | ||
752 | void (*__malloc_initialize_hook) () = malloc_initialize_hook; | |
753 | ||
754 | #endif /* DOUG_LEA_MALLOC */ | |
755 | ||
d883731c PJ |
756 | |
757 | #define REPORT_EMACS_BUG_ADDRESS "bug-gnu-emacs@gnu.org" | |
c692d1d3 | 758 | #define REPORT_EMACS_BUG_PRETEST_ADDRESS "emacs-pretest-bug@gnu.org" |
d883731c PJ |
759 | |
760 | /* This function is used to determine an address to which bug report should | |
761 | be sent. */ | |
762 | ||
400d6fa9 PJ |
763 | char * |
764 | bug_reporting_address () | |
d883731c | 765 | { |
400d6fa9 | 766 | int count = 0; |
d883731c PJ |
767 | Lisp_Object temp; |
768 | char *string; | |
769 | ||
770 | temp = Fsymbol_value (intern ("emacs-version")); | |
771 | ||
772 | /* When `emacs-version' is invalid, use normal address. */ | |
773 | if (!STRINGP(temp)) | |
774 | return REPORT_EMACS_BUG_ADDRESS; | |
775 | ||
d5db4077 | 776 | string = SDATA (temp); |
d883731c | 777 | |
400d6fa9 PJ |
778 | /* Count dots in `emacs-version'. */ |
779 | while (*string) | |
780 | { | |
781 | if (*string == '.') | |
782 | count++; | |
783 | string++; | |
784 | } | |
d883731c PJ |
785 | |
786 | /* When `emacs-version' has at least three dots, it is development or | |
787 | pretest version of Emacs. */ | |
400d6fa9 | 788 | return count >= 3 ? REPORT_EMACS_BUG_PRETEST_ADDRESS : REPORT_EMACS_BUG_ADDRESS; |
d883731c PJ |
789 | } |
790 | ||
791 | ||
b6779252 KH |
792 | /* ARGSUSED */ |
793 | int | |
3861bdcd DL |
794 | main (argc, argv |
795 | #ifdef VMS | |
796 | , envp | |
797 | #endif | |
798 | ) | |
b6779252 KH |
799 | int argc; |
800 | char **argv; | |
3861bdcd | 801 | #ifdef VMS |
b6779252 | 802 | char **envp; |
3861bdcd | 803 | #endif |
b6779252 | 804 | { |
2313132f | 805 | #if GC_MARK_STACK |
39ec21ea GM |
806 | Lisp_Object dummy; |
807 | #endif | |
b6779252 | 808 | char stack_bottom_variable; |
68c45bf0 | 809 | int do_initial_setlocale; |
b6779252 | 810 | int skip_args = 0; |
1f9c3929 | 811 | #ifndef USE_CRT_DLL |
b6779252 | 812 | extern int errno; |
1f9c3929 | 813 | #endif |
b6779252 KH |
814 | #ifdef HAVE_SETRLIMIT |
815 | struct rlimit rlim; | |
816 | #endif | |
817 | int no_loadup = 0; | |
6e910e07 | 818 | char *junk = 0; |
b6779252 | 819 | |
2313132f | 820 | #if GC_MARK_STACK |
39ec21ea GM |
821 | extern Lisp_Object *stack_base; |
822 | stack_base = &dummy; | |
823 | #endif | |
824 | ||
dede2792 JD |
825 | if (!initialized) |
826 | { | |
827 | extern char my_endbss[]; | |
828 | extern char *my_endbss_static; | |
829 | ||
830 | if (my_heap_start == 0) | |
831 | my_heap_start = sbrk (0); | |
832 | ||
833 | heap_bss_diff = (char *)my_heap_start - max (my_endbss, my_endbss_static); | |
834 | } | |
835 | ||
b6779252 KH |
836 | #ifdef LINUX_SBRK_BUG |
837 | __sbrk (1); | |
15aaf1b5 RS |
838 | #endif |
839 | ||
d785cf9e RS |
840 | #ifdef RUN_TIME_REMAP |
841 | if (initialized) | |
842 | run_time_remap (argv[0]); | |
843 | #endif | |
844 | ||
3fb79984 | 845 | #ifdef MAC_OSX |
e0f712ba AC |
846 | if (!initialized) |
847 | unexec_init_emacs_zone (); | |
848 | #endif | |
849 | ||
081bef73 | 850 | sort_args (argc, argv); |
956e3c7e RS |
851 | argc = 0; |
852 | while (argv[argc]) argc++; | |
081bef73 | 853 | |
3270ae6e KH |
854 | if (argmatch (argv, argc, "-version", "--version", 3, NULL, &skip_args) |
855 | /* We don't know the version number unless this is a dumped Emacs. | |
856 | So ignore --version otherwise. */ | |
857 | && initialized) | |
1702afef | 858 | { |
5cf9ca93 | 859 | Lisp_Object tem, tem2; |
1702afef | 860 | tem = Fsymbol_value (intern ("emacs-version")); |
5cf9ca93 | 861 | tem2 = Fsymbol_value (intern ("emacs-copyright")); |
1702afef RS |
862 | if (!STRINGP (tem)) |
863 | { | |
864 | fprintf (stderr, "Invalid value of `emacs-version'\n"); | |
865 | exit (1); | |
866 | } | |
5cf9ca93 GM |
867 | if (!STRINGP (tem2)) |
868 | { | |
869 | fprintf (stderr, "Invalid value of `emacs-copyright'\n"); | |
870 | exit (1); | |
871 | } | |
1702afef RS |
872 | else |
873 | { | |
d5db4077 | 874 | printf ("GNU Emacs %s\n", SDATA (tem)); |
5cf9ca93 | 875 | printf ("%s\n", SDATA(tem2)); |
b455c665 RS |
876 | printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n"); |
877 | printf ("You may redistribute copies of Emacs\n"); | |
878 | printf ("under the terms of the GNU General Public License.\n"); | |
879 | printf ("For more information about these matters, "); | |
94487c4e | 880 | printf ("see the file named COPYING.\n"); |
1702afef RS |
881 | exit (0); |
882 | } | |
883 | } | |
884 | ||
dede2792 JD |
885 | #ifdef HAVE_PERSONALITY_LINUX32 |
886 | /* See if there is a gap between the end of BSS and the heap. | |
887 | In that case, set personality and exec ourself again. */ | |
888 | if (!initialized | |
889 | && (strcmp (argv[argc-1], "dump") == 0 | |
890 | || strcmp (argv[argc-1], "bootstrap") == 0) | |
891 | && heap_bss_diff > MAX_HEAP_BSS_DIFF) | |
892 | { | |
893 | if (! getenv ("EMACS_HEAP_EXEC")) | |
894 | { | |
895 | /* Set this so we only do this once. */ | |
896 | putenv("EMACS_HEAP_EXEC=true"); | |
711877f3 MY |
897 | |
898 | /* A flag to turn off address randomization which is introduced | |
899 | in linux kernel shipped with fedora core 4 */ | |
900 | #define ADD_NO_RANDOMIZE 0x0040000 | |
901 | personality (PER_LINUX32 | ADD_NO_RANDOMIZE); | |
902 | #undef ADD_NO_RANDOMIZE | |
903 | ||
dede2792 JD |
904 | execvp (argv[0], argv); |
905 | ||
906 | /* If the exec fails, try to dump anyway. */ | |
907 | perror ("execvp"); | |
908 | } | |
909 | } | |
910 | #endif /* HAVE_PERSONALITY_LINUX32 */ | |
911 | ||
912 | ||
f927c5ae JB |
913 | /* Map in shared memory, if we are using that. */ |
914 | #ifdef HAVE_SHM | |
df6530f8 | 915 | if (argmatch (argv, argc, "-nl", "--no-shared-memory", 6, NULL, &skip_args)) |
f927c5ae JB |
916 | { |
917 | map_in_data (0); | |
918 | /* The shared memory was just restored, which clobbered this. */ | |
919 | skip_args = 1; | |
920 | } | |
921 | else | |
922 | { | |
923 | map_in_data (1); | |
924 | /* The shared memory was just restored, which clobbered this. */ | |
925 | skip_args = 0; | |
926 | } | |
927 | #endif | |
928 | ||
19a36ec6 | 929 | #ifdef NeXT |
b9df9faa KH |
930 | { |
931 | extern int malloc_cookie; | |
932 | /* This helps out unexnext.c. */ | |
933 | if (initialized) | |
934 | if (malloc_jumpstart (malloc_cookie) != 0) | |
935 | printf ("malloc jumpstart failed!\n"); | |
936 | } | |
19a36ec6 RS |
937 | #endif /* NeXT */ |
938 | ||
e0f712ba AC |
939 | #ifdef MAC_OSX |
940 | /* Skip process serial number passed in the form -psn_x_y as | |
a4f8f6cf YM |
941 | command-line argument. The WindowServer adds this option when |
942 | Emacs is invoked from the Finder or by the `open' command. In | |
943 | these cases, the working directory becomes `/', so we change it | |
944 | to the user's home directory. */ | |
e0f712ba | 945 | if (argc > skip_args + 1 && strncmp (argv[skip_args+1], "-psn_", 5) == 0) |
a4f8f6cf YM |
946 | { |
947 | chdir (getenv ("HOME")); | |
948 | skip_args++; | |
949 | } | |
e0f712ba AC |
950 | #endif /* MAC_OSX */ |
951 | ||
f927c5ae | 952 | #ifdef VMS |
7db35a48 | 953 | /* If -map specified, map the data file in. */ |
e2925360 KH |
954 | { |
955 | char *file; | |
70646bb5 | 956 | if (argmatch (argv, argc, "-map", "--map-data", 3, &file, &skip_args)) |
e2925360 KH |
957 | mapin_data (file); |
958 | } | |
f927c5ae JB |
959 | |
960 | #ifdef LINK_CRTL_SHARE | |
34035df3 | 961 | #ifdef SHARABLE_LIB_BUG |
7db35a48 | 962 | /* Bletcherous shared libraries! */ |
f927c5ae JB |
963 | if (!stdin) |
964 | stdin = fdopen (0, "r"); | |
965 | if (!stdout) | |
966 | stdout = fdopen (1, "w"); | |
967 | if (!stderr) | |
968 | stderr = fdopen (2, "w"); | |
969 | if (!environ) | |
970 | environ = envp; | |
34035df3 | 971 | #endif /* SHARABLE_LIB_BUG */ |
f927c5ae JB |
972 | #endif /* LINK_CRTL_SHARE */ |
973 | #endif /* VMS */ | |
974 | ||
ea2acec5 | 975 | #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK) |
6c2935e9 RS |
976 | /* Extend the stack space available. |
977 | Don't do that if dumping, since some systems (e.g. DJGPP) | |
978 | might define a smaller stack limit at that time. */ | |
979 | if (1 | |
980 | #ifndef CANNOT_DUMP | |
981 | && (!noninteractive || initialized) | |
982 | #endif | |
983 | && !getrlimit (RLIMIT_STACK, &rlim)) | |
53c58b5d | 984 | { |
509a8fcd | 985 | long newlim; |
fa8459a3 | 986 | extern size_t re_max_failures; |
03effc23 KH |
987 | /* Approximate the amount regex.c needs per unit of re_max_failures. */ |
988 | int ratio = 20 * sizeof (char *); | |
989 | /* Then add 33% to cover the size of the smaller stacks that regex.c | |
990 | successively allocates and discards, on its way to the maximum. */ | |
991 | ratio += ratio / 3; | |
992 | /* Add in some extra to cover | |
993 | what we're likely to use for other reasons. */ | |
994 | newlim = re_max_failures * ratio + 200000; | |
d0381a7f RS |
995 | #ifdef __NetBSD__ |
996 | /* NetBSD (at least NetBSD 1.2G and former) has a bug in its | |
997 | stack allocation routine for new process that the allocation | |
998 | fails if stack limit is not on page boundary. So, round up the | |
999 | new limit to page boundary. */ | |
1000 | newlim = (newlim + getpagesize () - 1) / getpagesize () * getpagesize(); | |
1001 | #endif | |
509a8fcd | 1002 | if (newlim > rlim.rlim_max) |
6c2935e9 RS |
1003 | { |
1004 | newlim = rlim.rlim_max; | |
03effc23 KH |
1005 | /* Don't let regex.c overflow the stack we have. */ |
1006 | re_max_failures = (newlim - 200000) / ratio; | |
6c2935e9 | 1007 | } |
509a8fcd RS |
1008 | if (rlim.rlim_cur < newlim) |
1009 | rlim.rlim_cur = newlim; | |
1010 | ||
53c58b5d RS |
1011 | setrlimit (RLIMIT_STACK, &rlim); |
1012 | } | |
ea2acec5 | 1013 | #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */ |
53c58b5d | 1014 | |
f927c5ae JB |
1015 | /* Record (approximately) where the stack begins. */ |
1016 | stack_bottom = &stack_bottom_variable; | |
1017 | ||
f927c5ae JB |
1018 | #ifdef USG_SHARED_LIBRARIES |
1019 | if (bss_end) | |
1d233b80 | 1020 | brk ((void *)bss_end); |
f927c5ae JB |
1021 | #endif |
1022 | ||
1023 | clearerr (stdin); | |
9ae8f997 | 1024 | |
f927c5ae | 1025 | #ifndef SYSTEM_MALLOC |
bf7f4e90 RS |
1026 | /* Arrange to get warning messages as memory fills up. */ |
1027 | memory_warnings (0, malloc_warning); | |
9ac0d9e0 | 1028 | |
f5a3c8c4 AI |
1029 | /* Call malloc at least once, to run the initial __malloc_hook. |
1030 | Also call realloc and free for consistency. */ | |
1031 | free (realloc (malloc (4), 4)); | |
bf7f4e90 | 1032 | |
06ca62eb | 1033 | # ifndef SYNC_INPUT |
bf7f4e90 RS |
1034 | /* Arrange to disable interrupt input inside malloc etc. */ |
1035 | uninterrupt_malloc (); | |
06ca62eb | 1036 | # endif /* not SYNC_INPUT */ |
f927c5ae JB |
1037 | #endif /* not SYSTEM_MALLOC */ |
1038 | ||
333f1b6f JD |
1039 | #ifdef HAVE_GTK_AND_PTHREAD |
1040 | main_thread = pthread_self (); | |
1041 | #endif /* HAVE_GTK_AND_PTHREAD */ | |
1042 | ||
edd3ff1d | 1043 | #if defined (MSDOS) || defined (WINDOWSNT) |
29b89fe0 RS |
1044 | /* We do all file input/output as binary files. When we need to translate |
1045 | newlines, we do that manually. */ | |
1046 | _fmode = O_BINARY; | |
edd3ff1d | 1047 | #endif /* MSDOS || WINDOWSNT */ |
18198bb2 | 1048 | |
edd3ff1d | 1049 | #ifdef MSDOS |
18198bb2 RS |
1050 | #if __DJGPP__ >= 2 |
1051 | if (!isatty (fileno (stdin))) | |
1052 | setmode (fileno (stdin), O_BINARY); | |
1053 | if (!isatty (fileno (stdout))) | |
1054 | { | |
1055 | fflush (stdout); | |
1056 | setmode (fileno (stdout), O_BINARY); | |
1057 | } | |
1058 | #else /* not __DJGPP__ >= 2 */ | |
29b89fe0 RS |
1059 | (stdin)->_flag &= ~_IOTEXT; |
1060 | (stdout)->_flag &= ~_IOTEXT; | |
1061 | (stderr)->_flag &= ~_IOTEXT; | |
18198bb2 | 1062 | #endif /* not __DJGPP__ >= 2 */ |
29b89fe0 RS |
1063 | #endif /* MSDOS */ |
1064 | ||
a422068f | 1065 | #ifdef SET_EMACS_PRIORITY |
3005da00 | 1066 | if (emacs_priority) |
5aa7f46a | 1067 | nice (emacs_priority); |
f927c5ae | 1068 | setuid (getuid ()); |
a422068f | 1069 | #endif /* SET_EMACS_PRIORITY */ |
f927c5ae | 1070 | |
68c45bf0 PE |
1071 | /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case. |
1072 | The build procedure uses this while dumping, to ensure that the | |
1073 | dumped Emacs does not have its system locale tables initialized, | |
1074 | as that might cause screwups when the dumped Emacs starts up. */ | |
1075 | { | |
1076 | char *lc_all = getenv ("LC_ALL"); | |
1077 | do_initial_setlocale = ! lc_all || strcmp (lc_all, "C"); | |
1078 | } | |
1079 | ||
1080 | /* Set locale now, so that initial error messages are localized properly. | |
1081 | fixup_locale must wait until later, since it builds strings. */ | |
1082 | if (do_initial_setlocale) | |
1083 | setlocale (LC_ALL, ""); | |
1084 | ||
d8b3a65d | 1085 | #ifdef EXTRA_INITIALIZE |
a9260219 | 1086 | EXTRA_INITIALIZE; |
d8b3a65d RS |
1087 | #endif |
1088 | ||
f927c5ae JB |
1089 | inhibit_window_system = 0; |
1090 | ||
7db35a48 | 1091 | /* Handle the -t switch, which specifies filename to use as terminal. */ |
956e3c7e RS |
1092 | while (1) |
1093 | { | |
1094 | char *term; | |
1095 | if (argmatch (argv, argc, "-t", "--terminal", 4, &term, &skip_args)) | |
1096 | { | |
1097 | int result; | |
68c45bf0 PE |
1098 | emacs_close (0); |
1099 | emacs_close (1); | |
1100 | result = emacs_open (term, O_RDWR, 0); | |
956e3c7e RS |
1101 | if (result < 0) |
1102 | { | |
1103 | char *errstring = strerror (errno); | |
186486eb | 1104 | fprintf (stderr, "%s: %s: %s\n", argv[0], term, errstring); |
956e3c7e RS |
1105 | exit (1); |
1106 | } | |
1107 | dup (0); | |
1108 | if (! isatty (0)) | |
1109 | { | |
186486eb | 1110 | fprintf (stderr, "%s: %s: not a tty\n", argv[0], term); |
956e3c7e RS |
1111 | exit (1); |
1112 | } | |
1113 | fprintf (stderr, "Using %s\n", term); | |
8ba50e1a | 1114 | #ifdef HAVE_WINDOW_SYSTEM |
956e3c7e | 1115 | inhibit_window_system = 1; /* -t => -nw */ |
f927c5ae | 1116 | #endif |
956e3c7e RS |
1117 | } |
1118 | else | |
1119 | break; | |
1120 | } | |
1121 | ||
400d6fa9 PJ |
1122 | /* Command line option --no-windows is deprecated and thus not mentioned |
1123 | in the manual and usage informations. */ | |
1124 | if (argmatch (argv, argc, "-nw", "--no-window-system", 6, NULL, &skip_args) | |
1125 | || argmatch (argv, argc, "-nw", "--no-windows", 6, NULL, &skip_args)) | |
e2925360 | 1126 | inhibit_window_system = 1; |
f927c5ae | 1127 | |
e2925360 | 1128 | /* Handle the -batch switch, which means don't do interactive display. */ |
f927c5ae | 1129 | noninteractive = 0; |
df6530f8 | 1130 | if (argmatch (argv, argc, "-batch", "--batch", 5, NULL, &skip_args)) |
55f4edbc RS |
1131 | { |
1132 | noninteractive = 1; | |
1133 | Vundo_outer_limit = Qnil; | |
1134 | } | |
6e910e07 RS |
1135 | if (argmatch (argv, argc, "-script", "--script", 3, &junk, &skip_args)) |
1136 | { | |
1137 | noninteractive = 1; /* Set batch mode. */ | |
e09b9180 RS |
1138 | /* Convert --script to --scriptload, un-skip it, and sort again |
1139 | so that it will be handled in proper sequence. */ | |
1140 | argv[skip_args - 1] = "-scriptload"; | |
6e910e07 RS |
1141 | skip_args -= 2; |
1142 | sort_args (argc, argv); | |
1143 | } | |
e2925360 | 1144 | |
7db35a48 | 1145 | /* Handle the --help option, which gives a usage message. */ |
df6530f8 | 1146 | if (argmatch (argv, argc, "-help", "--help", 3, NULL, &skip_args)) |
f927c5ae | 1147 | { |
f8125c39 EZ |
1148 | printf (USAGE1, argv[0], USAGE2); |
1149 | printf (USAGE3); | |
1150 | printf (USAGE4, bug_reporting_address ()); | |
e2925360 | 1151 | exit (0); |
f927c5ae JB |
1152 | } |
1153 | ||
edb85f59 RS |
1154 | if (! noninteractive) |
1155 | { | |
1156 | #ifdef BSD_PGRPS | |
1157 | if (initialized) | |
1158 | { | |
1159 | inherited_pgroup = EMACS_GETPGRP (0); | |
1160 | setpgrp (0, getpid ()); | |
1161 | } | |
1162 | #else | |
1163 | #if defined (USG5) && defined (INTERRUPT_INPUT) | |
1164 | setpgrp (); | |
1165 | #endif | |
5467331d YM |
1166 | #endif |
1167 | #if defined (HAVE_GTK_AND_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC) | |
1168 | { | |
1169 | extern void malloc_enable_thread P_ ((void)); | |
1170 | ||
1171 | malloc_enable_thread (); | |
1172 | } | |
edb85f59 RS |
1173 | #endif |
1174 | } | |
1175 | ||
fb8e9847 | 1176 | init_signals (); |
fb8e9847 | 1177 | |
1efa2983 KH |
1178 | /* Don't catch SIGHUP if dumping. */ |
1179 | if (1 | |
1180 | #ifndef CANNOT_DUMP | |
1181 | && initialized | |
1182 | #endif | |
1183 | ) | |
1184 | { | |
57e3d22a | 1185 | sigblock (sigmask (SIGHUP)); |
1efa2983 KH |
1186 | /* In --batch mode, don't catch SIGHUP if already ignored. |
1187 | That makes nohup work. */ | |
1188 | if (! noninteractive | |
1189 | || signal (SIGHUP, SIG_IGN) != SIG_IGN) | |
1190 | signal (SIGHUP, fatal_error_signal); | |
57e3d22a | 1191 | sigunblock (sigmask (SIGHUP)); |
1efa2983 KH |
1192 | } |
1193 | ||
f927c5ae JB |
1194 | if ( |
1195 | #ifndef CANNOT_DUMP | |
1196 | ! noninteractive || initialized | |
1197 | #else | |
1198 | 1 | |
1199 | #endif | |
1200 | ) | |
1201 | { | |
1efa2983 | 1202 | /* Don't catch these signals in batch mode if dumping. |
f927c5ae JB |
1203 | On some machines, this sets static data that would make |
1204 | signal fail to work right when the dumped Emacs is run. */ | |
f927c5ae JB |
1205 | signal (SIGQUIT, fatal_error_signal); |
1206 | signal (SIGILL, fatal_error_signal); | |
1207 | signal (SIGTRAP, fatal_error_signal); | |
7317d9e8 | 1208 | #ifdef SIGUSR1 |
71b28d05 | 1209 | add_user_signal (SIGUSR1, "sigusr1"); |
7317d9e8 | 1210 | #endif |
8247c60d | 1211 | #ifdef SIGUSR2 |
71b28d05 | 1212 | add_user_signal (SIGUSR2, "sigusr2"); |
7317d9e8 | 1213 | #endif |
99e372cd RS |
1214 | #ifdef SIGABRT |
1215 | signal (SIGABRT, fatal_error_signal); | |
1216 | #endif | |
1217 | #ifdef SIGHWE | |
1218 | signal (SIGHWE, fatal_error_signal); | |
1219 | #endif | |
1220 | #ifdef SIGPRE | |
1221 | signal (SIGPRE, fatal_error_signal); | |
1222 | #endif | |
1223 | #ifdef SIGORE | |
1224 | signal (SIGORE, fatal_error_signal); | |
1225 | #endif | |
1226 | #ifdef SIGUME | |
1227 | signal (SIGUME, fatal_error_signal); | |
1228 | #endif | |
1229 | #ifdef SIGDLK | |
1230 | signal (SIGDLK, fatal_error_signal); | |
1231 | #endif | |
1232 | #ifdef SIGCPULIM | |
1233 | signal (SIGCPULIM, fatal_error_signal); | |
1234 | #endif | |
a90538cb JB |
1235 | #ifdef SIGIOT |
1236 | /* This is missing on some systems - OS/2, for example. */ | |
f927c5ae | 1237 | signal (SIGIOT, fatal_error_signal); |
a90538cb | 1238 | #endif |
f927c5ae JB |
1239 | #ifdef SIGEMT |
1240 | signal (SIGEMT, fatal_error_signal); | |
1241 | #endif | |
1242 | signal (SIGFPE, fatal_error_signal); | |
00eaaa32 | 1243 | #ifdef SIGBUS |
f927c5ae | 1244 | signal (SIGBUS, fatal_error_signal); |
00eaaa32 | 1245 | #endif |
f927c5ae | 1246 | signal (SIGSEGV, fatal_error_signal); |
00eaaa32 | 1247 | #ifdef SIGSYS |
f927c5ae | 1248 | signal (SIGSYS, fatal_error_signal); |
00eaaa32 | 1249 | #endif |
f927c5ae JB |
1250 | signal (SIGTERM, fatal_error_signal); |
1251 | #ifdef SIGXCPU | |
1252 | signal (SIGXCPU, fatal_error_signal); | |
1253 | #endif | |
1254 | #ifdef SIGXFSZ | |
1255 | signal (SIGXFSZ, fatal_error_signal); | |
1256 | #endif /* SIGXFSZ */ | |
1257 | ||
271c7b7c RS |
1258 | #ifdef SIGDANGER |
1259 | /* This just means available memory is getting low. */ | |
1260 | signal (SIGDANGER, memory_warning_signal); | |
1261 | #endif | |
1262 | ||
f927c5ae | 1263 | #ifdef AIX |
56e034fa RS |
1264 | /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */ |
1265 | signal (SIGXCPU, fatal_error_signal); | |
0aef8561 | 1266 | #ifndef _I386 |
f927c5ae | 1267 | signal (SIGIOINT, fatal_error_signal); |
0aef8561 | 1268 | #endif |
f927c5ae JB |
1269 | signal (SIGGRANT, fatal_error_signal); |
1270 | signal (SIGRETRACT, fatal_error_signal); | |
1271 | signal (SIGSOUND, fatal_error_signal); | |
1272 | signal (SIGMSG, fatal_error_signal); | |
1273 | #endif /* AIX */ | |
1274 | } | |
1275 | ||
1276 | noninteractive1 = noninteractive; | |
1277 | ||
7db35a48 | 1278 | /* Perform basic initializations (not merely interning symbols). */ |
f927c5ae JB |
1279 | |
1280 | if (!initialized) | |
1281 | { | |
1282 | init_alloc_once (); | |
1283 | init_obarray (); | |
1284 | init_eval_once (); | |
270ce821 KH |
1285 | init_charset_once (); |
1286 | init_coding_once (); | |
f927c5ae | 1287 | init_syntax_once (); /* Create standard syntax table. */ |
270ce821 | 1288 | init_category_once (); /* Create standard category table. */ |
7db35a48 | 1289 | /* Must be done before init_buffer. */ |
f927c5ae | 1290 | init_casetab_once (); |
7db35a48 PJ |
1291 | init_buffer_once (); /* Create buffer table and some buffers. */ |
1292 | init_minibuf_once (); /* Create list of minibuffers. */ | |
1293 | /* Must precede init_window_once. */ | |
1294 | ||
90d920b6 GM |
1295 | /* Call syms_of_xfaces before init_window_once because that |
1296 | function creates Vterminal_frame. Termcap frames now use | |
1297 | faces, and the face implementation uses some symbols as | |
1298 | face names. */ | |
90d920b6 | 1299 | syms_of_xfaces (); |
4ea81208 KL |
1300 | /* XXX syms_of_keyboard uses some symbols in keymap.c. It would |
1301 | be better to arrange things not to have this dependency. */ | |
1302 | syms_of_keymap (); | |
7a18af49 KR |
1303 | /* Call syms_of_keyboard before init_window_once because |
1304 | keyboard sets up symbols that include some face names that | |
1305 | the X support will want to use. This can happen when | |
1306 | CANNOT_DUMP is defined. */ | |
1307 | syms_of_keyboard (); | |
90d920b6 | 1308 | |
e0f712ba | 1309 | #ifdef MAC_OS8 |
c1e279c2 AC |
1310 | /* init_window_once calls make_terminal_frame which on Mac OS |
1311 | creates a full-fledge output_mac type frame. This does not | |
1312 | work correctly before syms_of_textprop, syms_of_macfns, | |
1313 | syms_of_ccl, syms_of_fontset, syms_of_xterm, syms_of_search, | |
b15325b2 | 1314 | syms_of_frame, mac_term_init, and init_keyboard have already |
c1e279c2 | 1315 | been called. */ |
1a578e9b AC |
1316 | syms_of_textprop (); |
1317 | syms_of_macfns (); | |
1318 | syms_of_ccl (); | |
1319 | syms_of_fontset (); | |
1320 | syms_of_macterm (); | |
1321 | syms_of_macmenu (); | |
ab271aca | 1322 | syms_of_macselect (); |
1a578e9b AC |
1323 | syms_of_data (); |
1324 | syms_of_search (); | |
c1e279c2 | 1325 | syms_of_frame (); |
7db35a48 | 1326 | |
34e1bbc2 | 1327 | init_atimer (); |
b15325b2 | 1328 | mac_term_init (build_string ("Mac"), NULL, NULL); |
1a578e9b AC |
1329 | init_keyboard (); |
1330 | #endif | |
1331 | ||
7db35a48 | 1332 | init_window_once (); /* Init the window system. */ |
680256a8 | 1333 | init_fileio_once (); /* Must precede any path manipulation. */ |
0fc4c63e KS |
1334 | #ifdef HAVE_WINDOW_SYSTEM |
1335 | init_fringe_once (); /* Swap bitmaps if necessary. */ | |
1336 | #endif /* HAVE_WINDOW_SYSTEM */ | |
f927c5ae JB |
1337 | } |
1338 | ||
1339 | init_alloc (); | |
68c45bf0 PE |
1340 | |
1341 | if (do_initial_setlocale) | |
1342 | { | |
1343 | fixup_locale (); | |
ca9c0567 PE |
1344 | Vsystem_messages_locale = Vprevious_system_messages_locale; |
1345 | Vsystem_time_locale = Vprevious_system_time_locale; | |
68c45bf0 PE |
1346 | } |
1347 | ||
f927c5ae JB |
1348 | init_eval (); |
1349 | init_data (); | |
ad067ea6 | 1350 | #ifdef CLASH_DETECTION |
01f67d2c | 1351 | init_filelock (); |
ad067ea6 | 1352 | #endif |
34e1bbc2 | 1353 | #ifndef MAC_OS8 |
ab5d0358 | 1354 | init_atimer (); |
34e1bbc2 | 1355 | #endif |
7074fde6 | 1356 | running_asynch_code = 0; |
0e956009 | 1357 | |
a08a816a RS |
1358 | /* Handle --unibyte and the EMACS_UNIBYTE envvar, |
1359 | but not while dumping. */ | |
e721aa94 | 1360 | if (1) |
a08a816a RS |
1361 | { |
1362 | int inhibit_unibyte = 0; | |
1363 | ||
1364 | /* --multibyte overrides EMACS_UNIBYTE. */ | |
1365 | if (argmatch (argv, argc, "-no-unibyte", "--no-unibyte", 4, NULL, &skip_args) | |
e721aa94 SM |
1366 | || argmatch (argv, argc, "-multibyte", "--multibyte", 4, NULL, &skip_args) |
1367 | /* Ignore EMACS_UNIBYTE before dumping. */ | |
1368 | || (!initialized && noninteractive)) | |
a08a816a RS |
1369 | inhibit_unibyte = 1; |
1370 | ||
1371 | /* --unibyte requests that we set up to do everything with single-byte | |
1372 | buffers and strings. We need to handle this before calling | |
1373 | init_lread, init_editfns and other places that generate Lisp strings | |
1374 | from text in the environment. */ | |
c0218e1b DL |
1375 | /* Actually this shouldn't be needed as of 20.4 in a generally |
1376 | unibyte environment. As handa says, environment values | |
1377 | aren't now decoded; also existing buffers are now made | |
1378 | unibyte during startup if .emacs sets unibyte. Tested with | |
1379 | 8-bit data in environment variables and /etc/passwd, setting | |
7db35a48 | 1380 | unibyte and Latin-1 in .emacs. -- Dave Love */ |
a08a816a RS |
1381 | if (argmatch (argv, argc, "-unibyte", "--unibyte", 4, NULL, &skip_args) |
1382 | || argmatch (argv, argc, "-no-multibyte", "--no-multibyte", 4, NULL, &skip_args) | |
1383 | || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte)) | |
1384 | { | |
1385 | Lisp_Object old_log_max; | |
1386 | Lisp_Object symbol, tail; | |
1387 | ||
1388 | symbol = intern ("default-enable-multibyte-characters"); | |
1389 | Fset (symbol, Qnil); | |
1390 | ||
6524291c KH |
1391 | if (initialized) |
1392 | { | |
1393 | /* Erase pre-dump messages in *Messages* now so no abort. */ | |
1394 | old_log_max = Vmessage_log_max; | |
1395 | XSETFASTINT (Vmessage_log_max, 0); | |
1396 | message_dolog ("", 0, 1, 0); | |
1397 | Vmessage_log_max = old_log_max; | |
1398 | } | |
a08a816a | 1399 | |
3e75bb9e | 1400 | for (tail = Vbuffer_alist; CONSP (tail); |
7539e11f | 1401 | tail = XCDR (tail)) |
a08a816a RS |
1402 | { |
1403 | Lisp_Object buffer; | |
1404 | ||
7539e11f | 1405 | buffer = Fcdr (XCAR (tail)); |
a08a816a RS |
1406 | /* Verify that all buffers are empty now, as they |
1407 | ought to be. */ | |
1408 | if (BUF_Z (XBUFFER (buffer)) > BUF_BEG (XBUFFER (buffer))) | |
1409 | abort (); | |
1410 | /* It is safe to do this crudely in an empty buffer. */ | |
1411 | XBUFFER (buffer)->enable_multibyte_characters = Qnil; | |
1412 | } | |
1413 | } | |
1414 | } | |
1415 | ||
956e3c7e | 1416 | no_loadup |
b96f9fb7 | 1417 | = argmatch (argv, argc, "-nl", "--no-loadup", 6, NULL, &skip_args); |
956e3c7e RS |
1418 | |
1419 | ||
1420 | #ifdef HAVE_X_WINDOWS | |
1421 | /* Stupid kludge to catch command-line display spec. We can't | |
1422 | handle this argument entirely in window system dependent code | |
1423 | because we don't even know which window system dependent code | |
1424 | to run until we've recognized this argument. */ | |
1425 | { | |
1426 | char *displayname = 0; | |
956e3c7e RS |
1427 | int count_before = skip_args; |
1428 | ||
1429 | /* Skip any number of -d options, but only use the last one. */ | |
1430 | while (1) | |
1431 | { | |
1432 | int count_before_this = skip_args; | |
1433 | ||
1434 | if (argmatch (argv, argc, "-d", "--display", 3, &displayname, &skip_args)) | |
1435 | display_arg = 1; | |
1436 | else if (argmatch (argv, argc, "-display", 0, 3, &displayname, &skip_args)) | |
1437 | display_arg = 1; | |
1438 | else | |
1439 | break; | |
1440 | ||
1441 | count_before = count_before_this; | |
1442 | } | |
1443 | ||
1444 | /* If we have the form --display=NAME, | |
1445 | convert it into -d name. | |
1446 | This requires inserting a new element into argv. */ | |
1447 | if (displayname != 0 && skip_args - count_before == 1) | |
1448 | { | |
1449 | char **new = (char **) xmalloc (sizeof (char *) * (argc + 2)); | |
1450 | int j; | |
1451 | ||
1452 | for (j = 0; j < count_before + 1; j++) | |
1453 | new[j] = argv[j]; | |
1454 | new[count_before + 1] = "-d"; | |
1455 | new[count_before + 2] = displayname; | |
1456 | for (j = count_before + 2; j <argc; j++) | |
1457 | new[j + 1] = argv[j]; | |
1458 | argv = new; | |
1459 | argc++; | |
1460 | } | |
1461 | /* Change --display to -d, when its arg is separate. */ | |
1462 | else if (displayname != 0 && skip_args > count_before | |
1463 | && argv[count_before + 1][1] == '-') | |
1464 | argv[count_before + 1] = "-d"; | |
1465 | ||
1466 | /* Don't actually discard this arg. */ | |
1467 | skip_args = count_before; | |
1468 | } | |
1469 | #endif | |
1470 | ||
1471 | /* argmatch must not be used after here, | |
1472 | except when bulding temacs | |
1473 | because the -d argument has not been skipped in skip_args. */ | |
1474 | ||
29b89fe0 RS |
1475 | #ifdef MSDOS |
1476 | /* Call early 'cause init_environment needs it. */ | |
1477 | init_dosfns (); | |
1478 | /* Set defaults for several environment variables. */ | |
18198bb2 RS |
1479 | if (initialized) |
1480 | init_environment (argc, argv, skip_args); | |
1481 | else | |
d1fc6752 | 1482 | tzset (); |
18198bb2 | 1483 | #endif /* MSDOS */ |
29b89fe0 | 1484 | |
8ba50e1a | 1485 | #ifdef WINDOWSNT |
9785d95b | 1486 | globals_of_w32 (); |
8ba50e1a | 1487 | /* Initialize environment from registry settings. */ |
a3a58294 | 1488 | init_environment (argv); |
7db35a48 | 1489 | init_ntproc (); /* must precede init_editfns. */ |
8ba50e1a GV |
1490 | #endif |
1491 | ||
3ec33130 | 1492 | #if defined (MAC_OSX) && defined (HAVE_CARBON) |
1000788b AC |
1493 | if (initialized) |
1494 | init_mac_osx_environment (); | |
1495 | #endif | |
1496 | ||
0e956009 JB |
1497 | /* egetenv is a pretty low-level facility, which may get called in |
1498 | many circumstances; it seems flimsy to put off initializing it | |
1499 | until calling init_callproc. */ | |
a13f8f50 | 1500 | set_initial_environment (); |
93aed04d | 1501 | /* AIX crashes are reported in system versions 3.2.3 and 3.2.4 |
5990851d KL |
1502 | if this is not done. Do it after set_global_environment so that we |
1503 | don't pollute Vglobal_environment. */ | |
fa09a82d DL |
1504 | /* Setting LANG here will defeat the startup locale processing... */ |
1505 | #ifdef AIX3_2 | |
93aed04d RS |
1506 | putenv ("LANG=C"); |
1507 | #endif | |
0e956009 | 1508 | |
7db35a48 | 1509 | init_buffer (); /* Init default directory of main buffer. */ |
ace40a69 | 1510 | |
7928f0b5 | 1511 | init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */ |
ace40a69 | 1512 | init_cmdargs (argc, argv, skip_args); /* Must precede init_lread. */ |
380e25b8 RS |
1513 | |
1514 | if (initialized) | |
1515 | { | |
7db35a48 | 1516 | /* Erase any pre-dump messages in the message log, to avoid confusion. */ |
380e25b8 RS |
1517 | Lisp_Object old_log_max; |
1518 | old_log_max = Vmessage_log_max; | |
1519 | XSETFASTINT (Vmessage_log_max, 0); | |
f6fe7bb5 | 1520 | message_dolog ("", 0, 1, 0); |
380e25b8 RS |
1521 | Vmessage_log_max = old_log_max; |
1522 | } | |
1523 | ||
7928f0b5 | 1524 | init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */ |
fb8e9847 | 1525 | init_lread (); |
f927c5ae | 1526 | |
8bb697c0 RS |
1527 | /* Intern the names of all standard functions and variables; |
1528 | define standard keys. */ | |
f927c5ae JB |
1529 | |
1530 | if (!initialized) | |
1531 | { | |
7db35a48 | 1532 | /* The basic levels of Lisp must come first. */ |
f927c5ae | 1533 | /* And data must come first of all |
7db35a48 | 1534 | for the sake of symbols like error-message. */ |
e0f712ba AC |
1535 | #ifndef MAC_OS8 |
1536 | /* Called before init_window_once for Mac OS Classic. */ | |
f927c5ae | 1537 | syms_of_data (); |
1a578e9b | 1538 | #endif |
f927c5ae | 1539 | syms_of_alloc (); |
fb8e9847 | 1540 | syms_of_lread (); |
f927c5ae JB |
1541 | syms_of_print (); |
1542 | syms_of_eval (); | |
1543 | syms_of_fns (); | |
f927c5ae | 1544 | syms_of_floatfns (); |
f927c5ae JB |
1545 | |
1546 | syms_of_abbrev (); | |
1547 | syms_of_buffer (); | |
1548 | syms_of_bytecode (); | |
1549 | syms_of_callint (); | |
1550 | syms_of_casefiddle (); | |
1551 | syms_of_casetab (); | |
1552 | syms_of_callproc (); | |
270ce821 | 1553 | syms_of_category (); |
e0f712ba AC |
1554 | #ifndef MAC_OS8 |
1555 | /* Called before init_window_once for Mac OS Classic. */ | |
270ce821 | 1556 | syms_of_ccl (); |
1a578e9b | 1557 | #endif |
270ce821 | 1558 | syms_of_charset (); |
f927c5ae JB |
1559 | syms_of_cmds (); |
1560 | #ifndef NO_DIR_LIBRARY | |
1561 | syms_of_dired (); | |
1562 | #endif /* not NO_DIR_LIBRARY */ | |
1563 | syms_of_display (); | |
1564 | syms_of_doc (); | |
1565 | syms_of_editfns (); | |
1566 | syms_of_emacs (); | |
1567 | syms_of_fileio (); | |
270ce821 | 1568 | syms_of_coding (); /* This should be after syms_of_fileio. */ |
f927c5ae JB |
1569 | #ifdef CLASH_DETECTION |
1570 | syms_of_filelock (); | |
1571 | #endif /* CLASH_DETECTION */ | |
1572 | syms_of_indent (); | |
c2c5ed2c | 1573 | syms_of_insdel (); |
4ea81208 | 1574 | /* syms_of_keymap (); */ |
f927c5ae JB |
1575 | syms_of_macros (); |
1576 | syms_of_marker (); | |
1577 | syms_of_minibuf (); | |
f927c5ae | 1578 | syms_of_process (); |
e0f712ba AC |
1579 | #ifndef MAC_OS8 |
1580 | /* Called before init_window_once for Mac OS Classic. */ | |
f927c5ae | 1581 | syms_of_search (); |
1cbd5d9d | 1582 | syms_of_frame (); |
c1e279c2 | 1583 | #endif |
f927c5ae | 1584 | syms_of_syntax (); |
ed8dad6b | 1585 | syms_of_terminal (); |
0d934e7b | 1586 | syms_of_term (); |
f927c5ae | 1587 | syms_of_undo (); |
90d920b6 GM |
1588 | #ifdef HAVE_SOUND |
1589 | syms_of_sound (); | |
1590 | #endif | |
e0f712ba AC |
1591 | #ifndef MAC_OS8 |
1592 | /* Called before init_window_once for Mac OS Classic. */ | |
bef79ee4 | 1593 | syms_of_textprop (); |
1a578e9b | 1594 | #endif |
9d100795 | 1595 | syms_of_composite (); |
f927c5ae JB |
1596 | #ifdef VMS |
1597 | syms_of_vmsproc (); | |
1598 | #endif /* VMS */ | |
05687c54 RS |
1599 | #ifdef WINDOWSNT |
1600 | syms_of_ntproc (); | |
1601 | #endif /* WINDOWSNT */ | |
f927c5ae JB |
1602 | syms_of_window (); |
1603 | syms_of_xdisp (); | |
0fc4c63e KS |
1604 | #ifdef HAVE_WINDOW_SYSTEM |
1605 | syms_of_fringe (); | |
6e7e181d | 1606 | syms_of_image (); |
0fc4c63e | 1607 | #endif /* HAVE_WINDOW_SYSTEM */ |
f927c5ae | 1608 | #ifdef HAVE_X_WINDOWS |
72412588 | 1609 | syms_of_xterm (); |
f927c5ae | 1610 | syms_of_xfns (); |
270ce821 | 1611 | syms_of_fontset (); |
28b1b672 JD |
1612 | #ifdef HAVE_X_SM |
1613 | syms_of_xsmfns (); | |
1614 | #endif | |
72412588 JB |
1615 | #ifdef HAVE_X11 |
1616 | syms_of_xselect (); | |
1617 | #endif | |
f927c5ae JB |
1618 | #endif /* HAVE_X_WINDOWS */ |
1619 | ||
1e9c210b | 1620 | #ifndef HAVE_NTGUI |
e0f712ba AC |
1621 | #ifndef MAC_OS |
1622 | /* Called before init_window_once for Mac OS Classic. */ | |
6c850f3c | 1623 | syms_of_xmenu (); |
1e9c210b | 1624 | #endif |
1a578e9b | 1625 | #endif |
6c850f3c | 1626 | |
8ba50e1a | 1627 | #ifdef HAVE_NTGUI |
fbd6baed GV |
1628 | syms_of_w32term (); |
1629 | syms_of_w32fns (); | |
fbd6baed GV |
1630 | syms_of_w32select (); |
1631 | syms_of_w32menu (); | |
02062ac3 | 1632 | syms_of_fontset (); |
8ba50e1a GV |
1633 | #endif /* HAVE_NTGUI */ |
1634 | ||
3ec33130 | 1635 | #if defined (MAC_OSX) && defined (HAVE_CARBON) |
e0f712ba AC |
1636 | syms_of_macterm (); |
1637 | syms_of_macfns (); | |
1638 | syms_of_macmenu (); | |
ab271aca | 1639 | syms_of_macselect (); |
e0f712ba | 1640 | syms_of_fontset (); |
3ec33130 | 1641 | #endif /* MAC_OSX && HAVE_CARBON */ |
e0f712ba | 1642 | |
f927c5ae JB |
1643 | #ifdef SYMS_SYSTEM |
1644 | SYMS_SYSTEM; | |
1645 | #endif | |
1646 | ||
1647 | #ifdef SYMS_MACHINE | |
1648 | SYMS_MACHINE; | |
1649 | #endif | |
1650 | ||
1651 | keys_of_casefiddle (); | |
1652 | keys_of_cmds (); | |
1653 | keys_of_buffer (); | |
1654 | keys_of_keyboard (); | |
1655 | keys_of_keymap (); | |
f927c5ae JB |
1656 | keys_of_minibuf (); |
1657 | keys_of_window (); | |
9785d95b | 1658 | } |
3b6536b1 | 1659 | else |
9785d95b | 1660 | { |
3b6536b1 AS |
1661 | /* Initialization that must be done even if the global variable |
1662 | initialized is non zero. */ | |
9785d95b BK |
1663 | #ifdef HAVE_NTGUI |
1664 | globals_of_w32fns (); | |
1665 | globals_of_w32menu (); | |
52c7f9ee | 1666 | globals_of_w32select (); |
3b6536b1 | 1667 | #endif /* HAVE_NTGUI */ |
f927c5ae JB |
1668 | } |
1669 | ||
2491d293 | 1670 | init_process (); /* init_display uses add_keyboard_wait_descriptor. */ |
e0f712ba AC |
1671 | #ifndef MAC_OS8 |
1672 | /* Called before init_window_once for Mac OS Classic. */ | |
7db35a48 | 1673 | init_keyboard (); /* This too must precede init_sys_modes. */ |
1a578e9b | 1674 | #endif |
8bb697c0 | 1675 | #ifdef VMS |
7db35a48 | 1676 | init_vmsproc (); /* And this too. */ |
8bb697c0 | 1677 | #endif /* VMS */ |
0a125897 KL |
1678 | if (!noninteractive) |
1679 | { | |
1680 | #ifdef VMS | |
1681 | init_vms_input ();/* init_display calls get_tty_size, that needs this. */ | |
1682 | #endif /* VMS */ | |
1683 | init_display (); /* Determine terminal type. Calls init_sys_modes. */ | |
1684 | } | |
90d920b6 | 1685 | init_fns (); |
8bb697c0 | 1686 | init_xdisp (); |
0fc4c63e KS |
1687 | #ifdef HAVE_WINDOW_SYSTEM |
1688 | init_fringe (); | |
6e7e181d | 1689 | init_image (); |
0fc4c63e | 1690 | #endif /* HAVE_WINDOW_SYSTEM */ |
8bb697c0 RS |
1691 | init_macros (); |
1692 | init_editfns (); | |
8bb697c0 | 1693 | init_floatfns (); |
8bb697c0 RS |
1694 | #ifdef VMS |
1695 | init_vmsfns (); | |
1696 | #endif /* VMS */ | |
90d920b6 GM |
1697 | #ifdef HAVE_SOUND |
1698 | init_sound (); | |
1699 | #endif | |
75816372 | 1700 | init_window (); |
8bb697c0 | 1701 | |
f927c5ae JB |
1702 | if (!initialized) |
1703 | { | |
e2925360 | 1704 | char *file; |
7db35a48 | 1705 | /* Handle -l loadup, args passed by Makefile. */ |
df6530f8 | 1706 | if (argmatch (argv, argc, "-l", "--load", 3, &file, &skip_args)) |
f927c5ae | 1707 | Vtop_level = Fcons (intern ("load"), |
e2925360 | 1708 | Fcons (build_string (file), Qnil)); |
f927c5ae | 1709 | /* Unless next switch is -nl, load "loadup.el" first thing. */ |
956e3c7e | 1710 | if (! no_loadup) |
f927c5ae JB |
1711 | Vtop_level = Fcons (intern ("load"), |
1712 | Fcons (build_string ("loadup.el"), Qnil)); | |
f927c5ae JB |
1713 | } |
1714 | ||
93572b43 KH |
1715 | if (initialized) |
1716 | { | |
0269dedb RS |
1717 | #ifdef HAVE_TZSET |
1718 | { | |
1719 | /* If the execution TZ happens to be the same as the dump TZ, | |
1720 | change it to some other value and then change it back, | |
1721 | to force the underlying implementation to reload the TZ info. | |
1722 | This is needed on implementations that load TZ info from files, | |
1723 | since the TZ file contents may differ between dump and execution. */ | |
1724 | char *tz = getenv ("TZ"); | |
1725 | if (tz && !strcmp (tz, dump_tz)) | |
1726 | { | |
1727 | ++*tz; | |
1728 | tzset (); | |
1729 | --*tz; | |
1730 | } | |
1731 | } | |
1732 | #endif | |
93572b43 KH |
1733 | } |
1734 | ||
ecf783fa EZ |
1735 | /* Set up for profiling. This is known to work on FreeBSD, |
1736 | GNU/Linux and MinGW. It might work on some other systems too. | |
1737 | Give it a try and tell us if it works on your system. To compile | |
5a693cc0 EZ |
1738 | for profiling, add -pg to the switches your platform uses in |
1739 | CFLAGS and LDFLAGS. For example: | |
665b5955 | 1740 | `make CFLAGS="-pg -g -O -DPROFILING=1" LDFLAGS="-pg -g"'. */ |
ecf783fa | 1741 | #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__) |
e610ea43 RS |
1742 | #ifdef PROFILING |
1743 | if (initialized) | |
1744 | { | |
7db35a48 | 1745 | extern void _mcleanup (); |
ecf783fa EZ |
1746 | #ifdef __MINGW32__ |
1747 | extern unsigned char etext asm ("etext"); | |
1748 | #else | |
e610ea43 | 1749 | extern char etext; |
ecf783fa | 1750 | #endif |
90d920b6 | 1751 | extern void safe_bcopy (); |
67a5596f GM |
1752 | extern void dump_opcode_frequencies (); |
1753 | ||
e610ea43 | 1754 | atexit (_mcleanup); |
90d920b6 GM |
1755 | /* This uses safe_bcopy because that function comes first in the |
1756 | Emacs executable. It might be better to use something that | |
1757 | gives the start of the text segment, but start_of_text is not | |
1758 | defined on all systems now. */ | |
1759 | monstartup (safe_bcopy, &etext); | |
e610ea43 RS |
1760 | } |
1761 | else | |
1762 | moncontrol (0); | |
1763 | #endif | |
1764 | #endif | |
1765 | ||
f927c5ae JB |
1766 | initialized = 1; |
1767 | ||
e7536cff RS |
1768 | #ifdef LOCALTIME_CACHE |
1769 | /* Some versions of localtime have a bug. They cache the value of the time | |
279cc2b8 JB |
1770 | zone rather than looking it up every time. Since localtime() is |
1771 | called to bolt the undumping time into the undumped emacs, this | |
afe9fae9 | 1772 | results in localtime ignoring the TZ environment variable. |
7db35a48 | 1773 | This flushes the new TZ value into localtime. */ |
afe9fae9 | 1774 | tzset (); |
e7536cff | 1775 | #endif /* defined (LOCALTIME_CACHE) */ |
279cc2b8 | 1776 | |
f927c5ae JB |
1777 | /* Enter editor command loop. This never returns. */ |
1778 | Frecursive_edit (); | |
1779 | /* NOTREACHED */ | |
6bbd7a29 | 1780 | return 0; |
f927c5ae JB |
1781 | } |
1782 | \f | |
081bef73 RS |
1783 | /* Sort the args so we can find the most important ones |
1784 | at the beginning of argv. */ | |
1785 | ||
1786 | /* First, here's a table of all the standard options. */ | |
1787 | ||
1788 | struct standard_args | |
1789 | { | |
1790 | char *name; | |
1791 | char *longname; | |
1792 | int priority; | |
1793 | int nargs; | |
1794 | }; | |
1795 | ||
1796 | struct standard_args standard_args[] = | |
1797 | { | |
05922407 RS |
1798 | { "-version", "--version", 150, 0 }, |
1799 | #ifdef HAVE_SHM | |
1800 | { "-nl", "--no-shared-memory", 140, 0 }, | |
1801 | #endif | |
2725719a | 1802 | #ifdef VMS |
05922407 | 1803 | { "-map", "--map-data", 130, 0 }, |
2725719a | 1804 | #endif |
05922407 | 1805 | { "-t", "--terminal", 120, 1 }, |
400d6fa9 | 1806 | { "-nw", "--no-window-system", 110, 0 }, |
05922407 RS |
1807 | { "-nw", "--no-windows", 110, 0 }, |
1808 | { "-batch", "--batch", 100, 0 }, | |
6e910e07 | 1809 | { "-script", "--script", 100, 1 }, |
05922407 | 1810 | { "-help", "--help", 90, 0 }, |
956e3c7e RS |
1811 | { "-no-unibyte", "--no-unibyte", 83, 0 }, |
1812 | { "-multibyte", "--multibyte", 82, 0 }, | |
1813 | { "-unibyte", "--unibyte", 81, 0 }, | |
1814 | { "-no-multibyte", "--no-multibyte", 80, 0 }, | |
956e3c7e | 1815 | { "-nl", "--no-loadup", 70, 0 }, |
956e3c7e RS |
1816 | /* -d must come last before the options handled in startup.el. */ |
1817 | { "-d", "--display", 60, 1 }, | |
1818 | { "-display", 0, 60, 1 }, | |
05922407 | 1819 | /* Now for the options handled in startup.el. */ |
a1716a57 RS |
1820 | { "-Q", "--quick", 55, 0 }, |
1821 | { "-quick", 0, 55, 0 }, | |
081bef73 RS |
1822 | { "-q", "--no-init-file", 50, 0 }, |
1823 | { "-no-init-file", 0, 50, 0 }, | |
1824 | { "-no-site-file", "--no-site-file", 40, 0 }, | |
1825 | { "-u", "--user", 30, 1 }, | |
1826 | { "-user", 0, 30, 1 }, | |
1827 | { "-debug-init", "--debug-init", 20, 0 }, | |
f9e36a6d | 1828 | { "-nbi", "--no-bitmap-icon", 15, 0 }, |
f2bc3538 | 1829 | { "-iconic", "--iconic", 15, 0 }, |
a1716a57 | 1830 | { "-D", "--basic-display", 12, 0}, |
e09b9180 | 1831 | { "-basic-display", 0, 12, 0}, |
081bef73 RS |
1832 | { "-bg", "--background-color", 10, 1 }, |
1833 | { "-background", 0, 10, 1 }, | |
1834 | { "-fg", "--foreground-color", 10, 1 }, | |
1835 | { "-foreground", 0, 10, 1 }, | |
1836 | { "-bd", "--border-color", 10, 1 }, | |
1837 | { "-bw", "--border-width", 10, 1 }, | |
1838 | { "-ib", "--internal-border", 10, 1 }, | |
1839 | { "-ms", "--mouse-color", 10, 1 }, | |
1840 | { "-cr", "--cursor-color", 10, 1 }, | |
49ca717b | 1841 | { "-nbc", "--no-blinking-cursor", 10, 0 }, |
081bef73 RS |
1842 | { "-fn", "--font", 10, 1 }, |
1843 | { "-font", 0, 10, 1 }, | |
94452530 EZ |
1844 | { "-fs", "--fullscreen", 10, 0 }, |
1845 | { "-fw", "--fullwidth", 10, 0 }, | |
1846 | { "-fh", "--fullheight", 10, 0 }, | |
081bef73 RS |
1847 | { "-g", "--geometry", 10, 1 }, |
1848 | { "-geometry", 0, 10, 1 }, | |
1849 | { "-T", "--title", 10, 1 }, | |
ae63ae52 | 1850 | { "-title", 0, 10, 1 }, |
081bef73 RS |
1851 | { "-name", "--name", 10, 1 }, |
1852 | { "-xrm", "--xrm", 10, 1 }, | |
fcdeb5d9 RS |
1853 | { "-r", "--reverse-video", 5, 0 }, |
1854 | { "-rv", 0, 5, 0 }, | |
1855 | { "-reverse", 0, 5, 0 }, | |
ae63ae52 | 1856 | { "-hb", "--horizontal-scroll-bars", 5, 0 }, |
fcdeb5d9 | 1857 | { "-vb", "--vertical-scroll-bars", 5, 0 }, |
d20e1b1e | 1858 | { "-color", "--color", 5, 0}, |
16706228 JL |
1859 | { "-no-splash", "--no-splash", 3, 0 }, |
1860 | { "-no-desktop", "--no-desktop", 3, 0 }, | |
fcdeb5d9 RS |
1861 | /* These have the same priority as ordinary file name args, |
1862 | so they are not reordered with respect to those. */ | |
4af9e0b3 RS |
1863 | { "-L", "--directory", 0, 1 }, |
1864 | { "-directory", 0, 0, 1 }, | |
fcdeb5d9 RS |
1865 | { "-l", "--load", 0, 1 }, |
1866 | { "-load", 0, 0, 1 }, | |
e09b9180 | 1867 | { "-scriptload", "--scriptload", 0, 1 }, |
fcdeb5d9 RS |
1868 | { "-f", "--funcall", 0, 1 }, |
1869 | { "-funcall", 0, 0, 1 }, | |
575985b1 | 1870 | { "-eval", "--eval", 0, 1 }, |
67a5596f | 1871 | { "-execute", "--execute", 0, 1 }, |
2e13f8e9 RS |
1872 | { "-find-file", "--find-file", 0, 1 }, |
1873 | { "-visit", "--visit", 0, 1 }, | |
67a5596f | 1874 | { "-file", "--file", 0, 1 }, |
fcdeb5d9 | 1875 | { "-insert", "--insert", 0, 1 }, |
f2bc3538 | 1876 | /* This should be processed after ordinary file name args and the like. */ |
fcdeb5d9 | 1877 | { "-kill", "--kill", -10, 0 }, |
081bef73 RS |
1878 | }; |
1879 | ||
1880 | /* Reorder the elements of ARGV (assumed to have ARGC elements) | |
1881 | so that the highest priority ones come first. | |
1882 | Do not change the order of elements of equal priority. | |
956e3c7e RS |
1883 | If an option takes an argument, keep it and its argument together. |
1884 | ||
1885 | If an option that takes no argument appears more | |
1886 | than once, eliminate all but one copy of it. */ | |
081bef73 RS |
1887 | |
1888 | static void | |
1889 | sort_args (argc, argv) | |
1890 | int argc; | |
1891 | char **argv; | |
1892 | { | |
1893 | char **new = (char **) xmalloc (sizeof (char *) * argc); | |
1894 | /* For each element of argv, | |
1895 | the corresponding element of options is: | |
1896 | 0 for an option that takes no arguments, | |
1897 | 1 for an option that takes one argument, etc. | |
1898 | -1 for an ordinary non-option argument. */ | |
6dad9359 | 1899 | int *options = (int *) xmalloc (sizeof (int) * argc); |
081bef73 RS |
1900 | int *priority = (int *) xmalloc (sizeof (int) * argc); |
1901 | int to = 1; | |
956e3c7e | 1902 | int incoming_used = 1; |
081bef73 RS |
1903 | int from; |
1904 | int i; | |
1905 | ||
1906 | /* Categorize all the options, | |
1907 | and figure out which argv elts are option arguments. */ | |
1908 | for (from = 1; from < argc; from++) | |
1909 | { | |
1910 | options[from] = -1; | |
fcdeb5d9 | 1911 | priority[from] = 0; |
081bef73 RS |
1912 | if (argv[from][0] == '-') |
1913 | { | |
1914 | int match, thislen; | |
1915 | char *equals; | |
1916 | ||
c96f26f4 RS |
1917 | /* If we have found "--", don't consider |
1918 | any more arguments as options. */ | |
249443b6 | 1919 | if (argv[from][1] == '-' && argv[from][2] == 0) |
c96f26f4 RS |
1920 | { |
1921 | /* Leave the "--", and everything following it, at the end. */ | |
1922 | for (; from < argc; from++) | |
1923 | { | |
1924 | priority[from] = -100; | |
1925 | options[from] = -1; | |
1926 | } | |
1927 | break; | |
1928 | } | |
1929 | ||
081bef73 RS |
1930 | /* Look for a match with a known old-fashioned option. */ |
1931 | for (i = 0; i < sizeof (standard_args) / sizeof (standard_args[0]); i++) | |
1932 | if (!strcmp (argv[from], standard_args[i].name)) | |
1933 | { | |
1934 | options[from] = standard_args[i].nargs; | |
1935 | priority[from] = standard_args[i].priority; | |
fd76ec52 RS |
1936 | if (from + standard_args[i].nargs >= argc) |
1937 | fatal ("Option `%s' requires an argument\n", argv[from]); | |
081bef73 RS |
1938 | from += standard_args[i].nargs; |
1939 | goto done; | |
1940 | } | |
1941 | ||
1942 | /* Look for a match with a known long option. | |
1943 | MATCH is -1 if no match so far, -2 if two or more matches so far, | |
1944 | >= 0 (the table index of the match) if just one match so far. */ | |
1945 | if (argv[from][1] == '-') | |
1946 | { | |
1947 | match = -1; | |
1948 | thislen = strlen (argv[from]); | |
1949 | equals = index (argv[from], '='); | |
1950 | if (equals != 0) | |
1951 | thislen = equals - argv[from]; | |
1952 | ||
f609ef57 KH |
1953 | for (i = 0; |
1954 | i < sizeof (standard_args) / sizeof (standard_args[0]); i++) | |
1955 | if (standard_args[i].longname | |
1956 | && !strncmp (argv[from], standard_args[i].longname, | |
1957 | thislen)) | |
081bef73 RS |
1958 | { |
1959 | if (match == -1) | |
1960 | match = i; | |
1961 | else | |
1962 | match = -2; | |
1963 | } | |
1964 | ||
1965 | /* If we found exactly one match, use that. */ | |
1966 | if (match >= 0) | |
1967 | { | |
1968 | options[from] = standard_args[match].nargs; | |
1969 | priority[from] = standard_args[match].priority; | |
1970 | /* If --OPTION=VALUE syntax is used, | |
1971 | this option uses just one argv element. */ | |
1972 | if (equals != 0) | |
1973 | options[from] = 0; | |
fd76ec52 RS |
1974 | if (from + options[from] >= argc) |
1975 | fatal ("Option `%s' requires an argument\n", argv[from]); | |
081bef73 RS |
1976 | from += options[from]; |
1977 | } | |
1978 | } | |
1979 | done: ; | |
1980 | } | |
1981 | } | |
1982 | ||
1983 | /* Copy the arguments, in order of decreasing priority, to NEW. */ | |
1984 | new[0] = argv[0]; | |
956e3c7e | 1985 | while (incoming_used < argc) |
081bef73 RS |
1986 | { |
1987 | int best = -1; | |
2c70c992 | 1988 | int best_priority = -9999; |
081bef73 RS |
1989 | |
1990 | /* Find the highest priority remaining option. | |
1991 | If several have equal priority, take the first of them. */ | |
1992 | for (from = 1; from < argc; from++) | |
1993 | { | |
1994 | if (argv[from] != 0 && priority[from] > best_priority) | |
1995 | { | |
1996 | best_priority = priority[from]; | |
1997 | best = from; | |
1998 | } | |
1999 | /* Skip option arguments--they are tied to the options. */ | |
2000 | if (options[from] > 0) | |
2001 | from += options[from]; | |
2002 | } | |
7db35a48 | 2003 | |
081bef73 RS |
2004 | if (best < 0) |
2005 | abort (); | |
2006 | ||
956e3c7e RS |
2007 | /* Copy the highest priority remaining option, with its args, to NEW. |
2008 | Unless it is a duplicate of the previous one. */ | |
2009 | if (! (options[best] == 0 | |
2010 | && ! strcmp (new[to - 1], argv[best]))) | |
2011 | { | |
2012 | new[to++] = argv[best]; | |
2013 | for (i = 0; i < options[best]; i++) | |
2014 | new[to++] = argv[best + i + 1]; | |
2015 | } | |
2016 | ||
2017 | incoming_used += 1 + (options[best] > 0 ? options[best] : 0); | |
081bef73 RS |
2018 | |
2019 | /* Clear out this option in ARGV. */ | |
2020 | argv[best] = 0; | |
2021 | for (i = 0; i < options[best]; i++) | |
2022 | argv[best + i + 1] = 0; | |
2023 | } | |
2024 | ||
81b7af72 RS |
2025 | /* If duplicate options were deleted, fill up extra space with null ptrs. */ |
2026 | while (to < argc) | |
2027 | new[to++] = 0; | |
2028 | ||
6dad9359 | 2029 | bcopy (new, argv, sizeof (char *) * argc); |
0bf591da | 2030 | |
0a125897 KL |
2031 | xfree (options); |
2032 | xfree (new); | |
2033 | xfree (priority); | |
081bef73 RS |
2034 | } |
2035 | \f | |
f927c5ae | 2036 | DEFUN ("kill-emacs", Fkill_emacs, Skill_emacs, 0, 1, "P", |
7db35a48 PJ |
2037 | doc: /* Exit the Emacs job and kill it. |
2038 | If ARG is an integer, return ARG as the exit program code. | |
b224de9b | 2039 | If ARG is a string, stuff it as keyboard input. |
7db35a48 PJ |
2040 | |
2041 | The value of `kill-emacs-hook', if not void, | |
2042 | is a list of functions (of no args), | |
2043 | all of which are called before Emacs is actually killed. */) | |
2044 | (arg) | |
f927c5ae JB |
2045 | Lisp_Object arg; |
2046 | { | |
f927c5ae JB |
2047 | struct gcpro gcpro1; |
2048 | ||
2049 | GCPRO1 (arg); | |
2050 | ||
2051 | if (feof (stdin)) | |
2052 | arg = Qt; | |
2053 | ||
2447c626 | 2054 | if (!NILP (Vrun_hooks) && !noninteractive) |
f927c5ae JB |
2055 | call1 (Vrun_hooks, intern ("kill-emacs-hook")); |
2056 | ||
f927c5ae JB |
2057 | UNGCPRO; |
2058 | ||
2059 | /* Is it really necessary to do this deassign | |
2060 | when we are going to exit anyway? */ | |
2061 | /* #ifdef VMS | |
2062 | stop_vms_input (); | |
2063 | #endif */ | |
40be253a | 2064 | |
d0068e25 | 2065 | shut_down_emacs (0, 0, STRINGP (arg) ? arg : Qnil); |
40be253a | 2066 | |
58545838 KH |
2067 | /* If we have an auto-save list file, |
2068 | kill it because we are exiting Emacs deliberately (not crashing). | |
2069 | Do it after shut_down_emacs, which does an auto-save. */ | |
2070 | if (STRINGP (Vauto_save_list_file_name)) | |
d5db4077 | 2071 | unlink (SDATA (Vauto_save_list_file_name)); |
58545838 | 2072 | |
fa439170 | 2073 | exit (INTEGERP (arg) ? XINT (arg) : EXIT_SUCCESS); |
f927c5ae | 2074 | /* NOTREACHED */ |
f1145b54 | 2075 | return Qnil; |
f927c5ae | 2076 | } |
40be253a JB |
2077 | |
2078 | ||
2079 | /* Perform an orderly shutdown of Emacs. Autosave any modified | |
2080 | buffers, kill any child processes, clean up the terminal modes (if | |
2081 | we're in the foreground), and other stuff like that. Don't perform | |
2082 | any redisplay; this may be called when Emacs is shutting down in | |
2083 | the background, or after its X connection has died. | |
2084 | ||
2085 | If SIG is a signal number, print a message for it. | |
2086 | ||
2087 | This is called by fatal signal handlers, X protocol error handlers, | |
2088 | and Fkill_emacs. */ | |
f7ab4e3d | 2089 | |
40be253a | 2090 | void |
f7ab4e3d | 2091 | shut_down_emacs (sig, no_x, stuff) |
41423a80 | 2092 | int sig, no_x; |
f7ab4e3d | 2093 | Lisp_Object stuff; |
40be253a | 2094 | { |
829d872b RS |
2095 | /* Prevent running of hooks from now on. */ |
2096 | Vrun_hooks = Qnil; | |
2097 | ||
9db03f6c KS |
2098 | /* Don't update display from now on. */ |
2099 | Vinhibit_redisplay = Qt; | |
2100 | ||
7db35a48 | 2101 | /* If we are controlling the terminal, reset terminal modes. */ |
40be253a JB |
2102 | #ifdef EMACS_HAVE_TTY_PGRP |
2103 | { | |
d04d81d2 RS |
2104 | int pgrp = EMACS_GETPGRP (0); |
2105 | ||
40be253a JB |
2106 | int tpgrp; |
2107 | if (EMACS_GET_TTY_PGRP (0, &tpgrp) != -1 | |
5a570e37 | 2108 | && tpgrp == pgrp) |
40be253a | 2109 | { |
28d440ab | 2110 | reset_all_sys_modes (); |
40be253a | 2111 | if (sig && sig != SIGTERM) |
7c402969 | 2112 | fprintf (stderr, "Fatal error (%d)", sig); |
40be253a JB |
2113 | } |
2114 | } | |
2115 | #else | |
2116 | fflush (stdout); | |
0a125897 | 2117 | reset_all_sys_modes (); |
40be253a JB |
2118 | #endif |
2119 | ||
f7ab4e3d RS |
2120 | stuff_buffered_input (stuff); |
2121 | ||
ba7c29f3 | 2122 | #ifdef subprocesses |
92d835a4 | 2123 | inhibit_sentinels = 1; |
ba7c29f3 | 2124 | #endif |
40be253a JB |
2125 | kill_buffer_processes (Qnil); |
2126 | Fdo_auto_save (Qt, Qnil); | |
2127 | ||
2128 | #ifdef CLASH_DETECTION | |
2129 | unlock_all_files (); | |
2130 | #endif | |
2131 | ||
2132 | #ifdef VMS | |
2133 | kill_vms_processes (); | |
2134 | #endif | |
2135 | ||
5e7f8733 | 2136 | #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */ |
41423a80 | 2137 | #ifdef HAVE_X_WINDOWS |
f7511647 | 2138 | /* It's not safe to call intern here. Maybe we are crashing. */ |
2246281f KL |
2139 | if (!noninteractive && SYMBOLP (Vinitial_window_system) |
2140 | && SCHARS (SYMBOL_NAME (Vinitial_window_system)) == 1 | |
2141 | && SREF (SYMBOL_NAME (Vinitial_window_system), 0) == 'x' | |
f7511647 | 2142 | && ! no_x) |
41423a80 RS |
2143 | Fx_close_current_connection (); |
2144 | #endif /* HAVE_X_WINDOWS */ | |
5e7f8733 | 2145 | #endif |
41423a80 | 2146 | |
40be253a JB |
2147 | #ifdef SIGIO |
2148 | /* There is a tendency for a SIGIO signal to arrive within exit, | |
2149 | and cause a SIGHUP because the input descriptor is already closed. */ | |
2150 | unrequest_sigio (); | |
2151 | signal (SIGIO, SIG_IGN); | |
2152 | #endif | |
41f339d4 RS |
2153 | |
2154 | #ifdef WINDOWSNT | |
2155 | term_ntproc (); | |
2156 | #endif | |
d546e578 | 2157 | |
cd8d4168 GM |
2158 | /* Do this only if terminating normally, we want glyph matrices |
2159 | etc. in a core dump. */ | |
200f868e | 2160 | if (sig == 0 || sig == SIGTERM) |
cd8d4168 GM |
2161 | { |
2162 | check_glyph_memory (); | |
2163 | check_message_stack (); | |
2164 | } | |
90d920b6 | 2165 | |
d546e578 EZ |
2166 | #ifdef MSDOS |
2167 | dos_cleanup (); | |
2168 | #endif | |
40be253a JB |
2169 | } |
2170 | ||
2171 | ||
f927c5ae JB |
2172 | \f |
2173 | #ifndef CANNOT_DUMP | |
f927c5ae JB |
2174 | |
2175 | #ifdef HAVE_SHM | |
2176 | ||
2177 | DEFUN ("dump-emacs-data", Fdump_emacs_data, Sdump_emacs_data, 1, 1, 0, | |
7db35a48 PJ |
2178 | doc: /* Dump current state of Emacs into data file FILENAME. |
2179 | This function exists on systems that use HAVE_SHM. */) | |
2180 | (filename) | |
c9aae259 | 2181 | Lisp_Object filename; |
f927c5ae | 2182 | { |
55697f5b | 2183 | extern char my_edata[]; |
f927c5ae | 2184 | Lisp_Object tem; |
f927c5ae | 2185 | |
4fab758d | 2186 | check_pure_size (); |
b7826503 | 2187 | CHECK_STRING (filename); |
c9aae259 | 2188 | filename = Fexpand_file_name (filename, Qnil); |
f927c5ae JB |
2189 | |
2190 | tem = Vpurify_flag; | |
2191 | Vpurify_flag = Qnil; | |
2192 | ||
2193 | fflush (stdout); | |
7db35a48 | 2194 | /* Tell malloc where start of impure now is. */ |
f927c5ae JB |
2195 | /* Also arrange for warnings when nearly out of space. */ |
2196 | #ifndef SYSTEM_MALLOC | |
1090a161 | 2197 | memory_warnings (my_edata, malloc_warning); |
f927c5ae | 2198 | #endif |
d5db4077 | 2199 | map_out_data (SDATA (filename)); |
f927c5ae JB |
2200 | |
2201 | Vpurify_flag = tem; | |
2202 | ||
2203 | return Qnil; | |
2204 | } | |
2205 | ||
2206 | #else /* not HAVE_SHM */ | |
2207 | ||
2208 | DEFUN ("dump-emacs", Fdump_emacs, Sdump_emacs, 2, 2, 0, | |
7db35a48 PJ |
2209 | doc: /* Dump current state of Emacs into executable file FILENAME. |
2210 | Take symbols from SYMFILE (presumably the file you executed to run Emacs). | |
2211 | This is used in the file `loadup.el' when building Emacs. | |
2212 | ||
2213 | You must run Emacs in batch mode in order to dump it. */) | |
2214 | (filename, symfile) | |
c9aae259 | 2215 | Lisp_Object filename, symfile; |
f927c5ae | 2216 | { |
55697f5b | 2217 | extern char my_edata[]; |
f927c5ae | 2218 | Lisp_Object tem; |
1b7ddf4f | 2219 | Lisp_Object symbol; |
331379bf | 2220 | int count = SPECPDL_INDEX (); |
4fab758d GM |
2221 | |
2222 | check_pure_size (); | |
f927c5ae | 2223 | |
87a98b1a RS |
2224 | if (! noninteractive) |
2225 | error ("Dumping Emacs works only in batch mode"); | |
2226 | ||
848a925e | 2227 | #ifdef GNU_LINUX |
dede2792 JD |
2228 | if (heap_bss_diff > MAX_HEAP_BSS_DIFF) |
2229 | { | |
2230 | fprintf (stderr, "**************************************************\n"); | |
2231 | fprintf (stderr, "Warning: Your system has a gap between BSS and the\n"); | |
e79beb56 | 2232 | fprintf (stderr, "heap (%lu bytes). This usually means that exec-shield\n", |
c37caf9d JD |
2233 | heap_bss_diff); |
2234 | fprintf (stderr, "or something similar is in effect. The dump may\n"); | |
e79beb56 | 2235 | fprintf (stderr, "fail because of this. See the section about\n"); |
c37caf9d | 2236 | fprintf (stderr, "exec-shield in etc/PROBLEMS for more information.\n"); |
dede2792 JD |
2237 | fprintf (stderr, "**************************************************\n"); |
2238 | } | |
848a925e | 2239 | #endif /* GNU_LINUX */ |
dede2792 | 2240 | |
1b7ddf4f RS |
2241 | /* Bind `command-line-processed' to nil before dumping, |
2242 | so that the dumped Emacs will process its command line | |
2243 | and set up to work with X windows if appropriate. */ | |
4aaa3607 | 2244 | symbol = intern ("command-line-processed"); |
1b7ddf4f RS |
2245 | specbind (symbol, Qnil); |
2246 | ||
b7826503 | 2247 | CHECK_STRING (filename); |
c9aae259 EN |
2248 | filename = Fexpand_file_name (filename, Qnil); |
2249 | if (!NILP (symfile)) | |
f927c5ae | 2250 | { |
b7826503 | 2251 | CHECK_STRING (symfile); |
d5db4077 | 2252 | if (SCHARS (symfile)) |
c9aae259 | 2253 | symfile = Fexpand_file_name (symfile, Qnil); |
f927c5ae JB |
2254 | } |
2255 | ||
2256 | tem = Vpurify_flag; | |
2257 | Vpurify_flag = Qnil; | |
2258 | ||
0269dedb RS |
2259 | #ifdef HAVE_TZSET |
2260 | set_time_zone_rule (dump_tz); | |
2261 | #ifndef LOCALTIME_CACHE | |
2262 | /* Force a tz reload, since set_time_zone_rule doesn't. */ | |
2263 | tzset (); | |
2264 | #endif | |
2265 | #endif | |
2266 | ||
f927c5ae JB |
2267 | fflush (stdout); |
2268 | #ifdef VMS | |
d5db4077 | 2269 | mapout_data (SDATA (filename)); |
f927c5ae | 2270 | #else |
7db35a48 | 2271 | /* Tell malloc where start of impure now is. */ |
f927c5ae JB |
2272 | /* Also arrange for warnings when nearly out of space. */ |
2273 | #ifndef SYSTEM_MALLOC | |
cc5f52cb RS |
2274 | #ifndef WINDOWSNT |
2275 | /* On Windows, this was done before dumping, and that once suffices. | |
2276 | Meanwhile, my_edata is not valid on Windows. */ | |
cb37cf78 | 2277 | memory_warnings (my_edata, malloc_warning); |
cc5f52cb | 2278 | #endif /* not WINDOWSNT */ |
15aaf1b5 | 2279 | #endif |
06ca62eb | 2280 | #if !defined (SYSTEM_MALLOC) && defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT |
aa477689 JD |
2281 | /* Pthread may call malloc before main, and then we will get an endless |
2282 | loop, because pthread_self (see alloc.c) calls malloc the first time | |
2283 | it is called on some systems. */ | |
2284 | reset_malloc_hooks (); | |
2285 | #endif | |
15aaf1b5 RS |
2286 | #ifdef DOUG_LEA_MALLOC |
2287 | malloc_state_ptr = malloc_get_state (); | |
f927c5ae | 2288 | #endif |
2b7377ca | 2289 | |
a74c5ec1 | 2290 | #ifdef USE_MMAP_FOR_BUFFERS |
2b7377ca GM |
2291 | mmap_set_vars (0); |
2292 | #endif | |
d5db4077 KR |
2293 | unexec (SDATA (filename), |
2294 | !NILP (symfile) ? SDATA (symfile) : 0, my_edata, 0, 0); | |
a74c5ec1 | 2295 | #ifdef USE_MMAP_FOR_BUFFERS |
2b7377ca GM |
2296 | mmap_set_vars (1); |
2297 | #endif | |
15aaf1b5 RS |
2298 | #ifdef DOUG_LEA_MALLOC |
2299 | free (malloc_state_ptr); | |
2300 | #endif | |
f927c5ae JB |
2301 | #endif /* not VMS */ |
2302 | ||
2303 | Vpurify_flag = tem; | |
2304 | ||
1b7ddf4f | 2305 | return unbind_to (count, Qnil); |
f927c5ae JB |
2306 | } |
2307 | ||
2308 | #endif /* not HAVE_SHM */ | |
2309 | ||
2310 | #endif /* not CANNOT_DUMP */ | |
2311 | \f | |
68c45bf0 PE |
2312 | #if HAVE_SETLOCALE |
2313 | /* Recover from setlocale (LC_ALL, ""). */ | |
2314 | void | |
2315 | fixup_locale () | |
2316 | { | |
68c45bf0 PE |
2317 | /* The Emacs Lisp reader needs LC_NUMERIC to be "C", |
2318 | so that numbers are read and printed properly for Emacs Lisp. */ | |
2319 | setlocale (LC_NUMERIC, "C"); | |
68c45bf0 PE |
2320 | } |
2321 | ||
0c8559bb PE |
2322 | /* Set system locale CATEGORY, with previous locale *PLOCALE, to |
2323 | DESIRED_LOCALE. */ | |
68c45bf0 PE |
2324 | static void |
2325 | synchronize_locale (category, plocale, desired_locale) | |
2326 | int category; | |
2327 | Lisp_Object *plocale; | |
2328 | Lisp_Object desired_locale; | |
2329 | { | |
0c8559bb PE |
2330 | if (! EQ (*plocale, desired_locale)) |
2331 | { | |
2332 | *plocale = desired_locale; | |
2333 | setlocale (category, (STRINGP (desired_locale) | |
3b6536b1 | 2334 | ? (char *) SDATA (desired_locale) |
0c8559bb PE |
2335 | : "")); |
2336 | } | |
68c45bf0 PE |
2337 | } |
2338 | ||
ca9c0567 | 2339 | /* Set system time locale to match Vsystem_time_locale, if possible. */ |
68c45bf0 | 2340 | void |
ca9c0567 | 2341 | synchronize_system_time_locale () |
68c45bf0 | 2342 | { |
ca9c0567 PE |
2343 | synchronize_locale (LC_TIME, &Vprevious_system_time_locale, |
2344 | Vsystem_time_locale); | |
68c45bf0 PE |
2345 | } |
2346 | ||
ca9c0567 PE |
2347 | /* Set system messages locale to match Vsystem_messages_locale, if |
2348 | possible. */ | |
68c45bf0 | 2349 | void |
ca9c0567 | 2350 | synchronize_system_messages_locale () |
68c45bf0 PE |
2351 | { |
2352 | #ifdef LC_MESSAGES | |
ca9c0567 PE |
2353 | synchronize_locale (LC_MESSAGES, &Vprevious_system_messages_locale, |
2354 | Vsystem_messages_locale); | |
68c45bf0 PE |
2355 | #endif |
2356 | } | |
2357 | #endif /* HAVE_SETLOCALE */ | |
2358 | \f | |
4b163808 | 2359 | #ifndef SEPCHAR |
f927c5ae JB |
2360 | #define SEPCHAR ':' |
2361 | #endif | |
2362 | ||
2363 | Lisp_Object | |
2364 | decode_env_path (evarname, defalt) | |
2365 | char *evarname, *defalt; | |
2366 | { | |
2367 | register char *path, *p; | |
213d0b1f | 2368 | Lisp_Object lpath, element, tem; |
f927c5ae | 2369 | |
2447c626 JB |
2370 | /* It's okay to use getenv here, because this function is only used |
2371 | to initialize variables when Emacs starts up, and isn't called | |
2372 | after that. */ | |
e065a56e JB |
2373 | if (evarname != 0) |
2374 | path = (char *) getenv (evarname); | |
2375 | else | |
2376 | path = 0; | |
f927c5ae JB |
2377 | if (!path) |
2378 | path = defalt; | |
6a30e6d6 RS |
2379 | #ifdef DOS_NT |
2380 | /* Ensure values from the environment use the proper directory separator. */ | |
2381 | if (path) | |
2382 | { | |
2383 | p = alloca (strlen (path) + 1); | |
2384 | strcpy (p, path); | |
2385 | path = p; | |
2386 | ||
2387 | if ('/' == DIRECTORY_SEP) | |
2388 | dostounix_filename (path); | |
2389 | else | |
2390 | unixtodos_filename (path); | |
2391 | } | |
2392 | #endif | |
f927c5ae JB |
2393 | lpath = Qnil; |
2394 | while (1) | |
2395 | { | |
2396 | p = index (path, SEPCHAR); | |
2397 | if (!p) p = path + strlen (path); | |
213d0b1f RS |
2398 | element = (p - path ? make_string (path, p - path) |
2399 | : build_string (".")); | |
2400 | ||
2401 | /* Add /: to the front of the name | |
2402 | if it would otherwise be treated as magic. */ | |
2403 | tem = Ffind_file_name_handler (element, Qt); | |
ca3df2d5 RS |
2404 | |
2405 | /* However, if the handler says "I'm safe", | |
2406 | don't bother adding /:. */ | |
2407 | if (SYMBOLP (tem)) | |
2408 | { | |
2409 | Lisp_Object prop; | |
2410 | prop = Fget (tem, intern ("safe-magic")); | |
2411 | if (! NILP (prop)) | |
2412 | tem = Qnil; | |
2413 | } | |
2414 | ||
213d0b1f RS |
2415 | if (! NILP (tem)) |
2416 | element = concat2 (build_string ("/:"), element); | |
2417 | ||
2418 | lpath = Fcons (element, lpath); | |
f927c5ae JB |
2419 | if (*p) |
2420 | path = p + 1; | |
2421 | else | |
2422 | break; | |
2423 | } | |
2424 | return Fnreverse (lpath); | |
2425 | } | |
2426 | ||
dfcf069d | 2427 | void |
f927c5ae JB |
2428 | syms_of_emacs () |
2429 | { | |
213d0b1f RS |
2430 | Qfile_name_handler_alist = intern ("file-name-handler-alist"); |
2431 | staticpro (&Qfile_name_handler_alist); | |
2432 | ||
83591e66 | 2433 | #ifndef CANNOT_DUMP |
f927c5ae JB |
2434 | #ifdef HAVE_SHM |
2435 | defsubr (&Sdump_emacs_data); | |
2436 | #else | |
2437 | defsubr (&Sdump_emacs); | |
83591e66 | 2438 | #endif |
f927c5ae JB |
2439 | #endif |
2440 | ||
2441 | defsubr (&Skill_emacs); | |
2442 | ||
59653951 | 2443 | defsubr (&Sinvocation_name); |
ace40a69 | 2444 | defsubr (&Sinvocation_directory); |
59653951 | 2445 | |
f927c5ae | 2446 | DEFVAR_LISP ("command-line-args", &Vcommand_line_args, |
2a9d2ed6 RS |
2447 | doc: /* Args passed by shell to Emacs, as a list of strings. |
2448 | Many arguments are deleted from the list as they are processed. */); | |
f927c5ae JB |
2449 | |
2450 | DEFVAR_LISP ("system-type", &Vsystem_type, | |
40a8993a NR |
2451 | doc: /* Value is symbol indicating type of operating system you are using. |
2452 | Special values: | |
2453 | `gnu/linux' compiled for a GNU/Linux system. | |
2454 | `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...). | |
2455 | `macos' compiled for Mac OS 9. | |
2456 | `ms-dos' compiled as an MS-DOS application. | |
2457 | `windows-nt' compiled as a native W32 application. | |
2458 | `cygwin' compiled using the Cygwin library. | |
e2e87e15 JB |
2459 | `vax-vms' or |
2460 | `axp-vms' compiled for a (Open)VMS system. | |
40a8993a | 2461 | Anything else indicates some sort of Unix system. */); |
f927c5ae JB |
2462 | Vsystem_type = intern (SYSTEM_TYPE); |
2463 | ||
271c7b7c | 2464 | DEFVAR_LISP ("system-configuration", &Vsystem_configuration, |
7db35a48 PJ |
2465 | doc: /* Value is string indicating configuration Emacs was built for. |
2466 | On MS-Windows, the value reflects the OS flavor and version on which | |
2467 | Emacs is running. */); | |
f7511647 | 2468 | Vsystem_configuration = build_string (EMACS_CONFIGURATION); |
271c7b7c | 2469 | |
f0fc0b1a | 2470 | DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options, |
7db35a48 | 2471 | doc: /* String containing the configuration options Emacs was built with. */); |
f0fc0b1a KH |
2472 | Vsystem_configuration_options = build_string (EMACS_CONFIG_OPTIONS); |
2473 | ||
f927c5ae | 2474 | DEFVAR_BOOL ("noninteractive", &noninteractive1, |
7db35a48 | 2475 | doc: /* Non-nil means Emacs is running without interactive terminal. */); |
e5d77022 | 2476 | |
e5d77022 | 2477 | DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook, |
e79beb56 | 2478 | doc: /* Hook to be run when `kill-emacs' is called. |
d77b70e5 | 2479 | Since `kill-emacs' may be invoked when the terminal is disconnected (or |
7db35a48 PJ |
2480 | in other similar situations), functions placed on this hook should not |
2481 | expect to be able to interact with the user. To ask for confirmation, | |
d77b70e5 MR |
2482 | see `kill-emacs-query-functions' instead. |
2483 | ||
2484 | The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */); | |
edc8ae07 | 2485 | Vkill_emacs_hook = Qnil; |
3005da00 RS |
2486 | |
2487 | DEFVAR_INT ("emacs-priority", &emacs_priority, | |
7db35a48 PJ |
2488 | doc: /* Priority for Emacs to run at. |
2489 | This value is effective only if set before Emacs is dumped, | |
2490 | and only if the Emacs executable is installed with setuid to permit | |
2491 | it to change priority. (Emacs sets its uid back to the real uid.) | |
2492 | Currently, you need to define SET_EMACS_PRIORITY in `config.h' | |
2493 | before you compile Emacs, to enable the code for this feature. */); | |
e7a9e1c3 | 2494 | emacs_priority = 0; |
074a066b GV |
2495 | |
2496 | DEFVAR_LISP ("path-separator", &Vpath_separator, | |
c7ed3276 EZ |
2497 | doc: /* String containing the character that separates directories in |
2498 | search paths, such as PATH and other similar environment variables. */); | |
074a066b GV |
2499 | { |
2500 | char c = SEPCHAR; | |
2501 | Vpath_separator = make_string (&c, 1); | |
2502 | } | |
59653951 | 2503 | |
f67de86f | 2504 | DEFVAR_LISP ("invocation-name", &Vinvocation_name, |
7db35a48 PJ |
2505 | doc: /* The program name that was used to run Emacs. |
2506 | Any directory names are omitted. */); | |
f67de86f RS |
2507 | |
2508 | DEFVAR_LISP ("invocation-directory", &Vinvocation_directory, | |
7db35a48 PJ |
2509 | doc: /* The directory in which the Emacs executable was found, to run it. |
2510 | The value is nil if that directory's name is not known. */); | |
f67de86f RS |
2511 | |
2512 | DEFVAR_LISP ("installation-directory", &Vinstallation_directory, | |
7db35a48 | 2513 | doc: /* A directory within which to look for the `lib-src' and `etc' directories. |
e79beb56 JB |
2514 | This is non-nil when we can't find those directories in their standard installed |
2515 | locations, but we can find them near where the Emacs executable was found. */); | |
07f4d123 | 2516 | Vinstallation_directory = Qnil; |
68c45bf0 | 2517 | |
ca9c0567 | 2518 | DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale, |
7db35a48 | 2519 | doc: /* System locale for messages. */); |
ca9c0567 | 2520 | Vsystem_messages_locale = Qnil; |
68c45bf0 | 2521 | |
ca9c0567 | 2522 | DEFVAR_LISP ("previous-system-messages-locale", |
7db35a48 PJ |
2523 | &Vprevious_system_messages_locale, |
2524 | doc: /* Most recently used system locale for messages. */); | |
ca9c0567 | 2525 | Vprevious_system_messages_locale = Qnil; |
68c45bf0 | 2526 | |
ca9c0567 | 2527 | DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale, |
7db35a48 | 2528 | doc: /* System locale for time. */); |
ca9c0567 | 2529 | Vsystem_time_locale = Qnil; |
68c45bf0 | 2530 | |
ca9c0567 | 2531 | DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale, |
7db35a48 | 2532 | doc: /* Most recently used system locale for time. */); |
ca9c0567 | 2533 | Vprevious_system_time_locale = Qnil; |
f927c5ae | 2534 | } |
ab5796a9 MB |
2535 | |
2536 | /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e | |
2537 | (do not change this comment) */ |