Commit | Line | Data |
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f927c5ae | 1 | /* Fully extensible Emacs, running on Unix, intended for GNU. |
0b5538bd | 2 | Copyright (C) 1985, 1986, 1987, 1993, 1994, 1995, 1997, 1998, 1999, |
ea8c20e0 GM |
3 | 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 |
4 | Free Software Foundation, Inc. | |
f927c5ae JB |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
8 | GNU Emacs is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
684d6f5b | 10 | the Free Software Foundation; either version 3, or (at your option) |
f927c5ae JB |
11 | any later version. |
12 | ||
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GNU Emacs; see the file COPYING. If not, write to | |
4fc5845f LK |
20 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
21 | Boston, MA 02110-1301, USA. */ | |
f927c5ae JB |
22 | |
23 | ||
68c45bf0 | 24 | #include <config.h> |
f927c5ae JB |
25 | #include <signal.h> |
26 | #include <errno.h> | |
f927c5ae JB |
27 | #include <stdio.h> |
28 | ||
29 | #include <sys/types.h> | |
30 | #include <sys/file.h> | |
31 | ||
32 | #ifdef VMS | |
33 | #include <ssdef.h> | |
34 | #endif | |
35 | ||
cda4a5fd GM |
36 | #ifdef HAVE_UNISTD_H |
37 | #include <unistd.h> | |
38 | #endif | |
39 | ||
488b7cb3 | 40 | #ifdef BSD_SYSTEM |
f927c5ae JB |
41 | #include <sys/ioctl.h> |
42 | #endif | |
43 | ||
edd3ff1d JR |
44 | #ifdef WINDOWSNT |
45 | #include <fcntl.h> | |
52c7f9ee JR |
46 | #include <windows.h> /* just for w32.h */ |
47 | #include "w32.h" | |
c68a2829 | 48 | #include "w32heap.h" /* for prototype of sbrk */ |
edd3ff1d JR |
49 | #endif |
50 | ||
f927c5ae JB |
51 | #include "lisp.h" |
52 | #include "commands.h" | |
bef79ee4 | 53 | #include "intervals.h" |
a08a816a | 54 | #include "buffer.h" |
3f6abfd7 | 55 | #include "window.h" |
f927c5ae | 56 | |
edc8ae07 | 57 | #include "systty.h" |
6c3a4e9d | 58 | #include "blockinput.h" |
8090eb09 | 59 | #include "syssignal.h" |
6c362a8b | 60 | #include "process.h" |
428a555e | 61 | #include "frame.h" |
5bda49c6 | 62 | #include "termhooks.h" |
dfcf069d | 63 | #include "keyboard.h" |
e35f6ff7 | 64 | #include "keymap.h" |
a41f8bed | 65 | |
68c45bf0 PE |
66 | #ifdef HAVE_SETLOCALE |
67 | #include <locale.h> | |
68 | #endif | |
69 | ||
53c58b5d RS |
70 | #ifdef HAVE_SETRLIMIT |
71 | #include <sys/time.h> | |
72 | #include <sys/resource.h> | |
73 | #endif | |
74 | ||
dede2792 JD |
75 | #ifdef HAVE_PERSONALITY_LINUX32 |
76 | #include <sys/personality.h> | |
77 | #endif | |
78 | ||
f927c5ae JB |
79 | #ifndef O_RDWR |
80 | #define O_RDWR 2 | |
81 | #endif | |
82 | ||
f95c3f91 | 83 | #ifdef HAVE_SETPGID |
2b7e8799 | 84 | #if !defined (USG) || defined (BSD_PGRPS) |
90553aa3 | 85 | #undef setpgrp |
f95c3f91 GM |
86 | #define setpgrp setpgid |
87 | #endif | |
2b7e8799 | 88 | #endif |
f95c3f91 | 89 | |
90553aa3 DL |
90 | extern void malloc_warning P_ ((char *)); |
91 | extern void set_time_zone_rule P_ ((char *)); | |
8892f40b GM |
92 | #ifdef HAVE_INDEX |
93 | extern char *index P_ ((const char *, int)); | |
94 | #endif | |
43165242 | 95 | |
30aa3f19 GM |
96 | /* Make these values available in GDB, which doesn't see macros. */ |
97 | ||
6b61353c KH |
98 | #ifdef USE_LSB_TAG |
99 | int gdb_use_lsb = 1; | |
100 | #else | |
101 | int gdb_use_lsb = 0; | |
102 | #endif | |
103 | #ifdef NO_UNION_TYPE | |
104 | int gdb_use_union = 0; | |
105 | #else | |
106 | int gdb_use_union = 1; | |
107 | #endif | |
30aa3f19 GM |
108 | EMACS_INT gdb_valbits = VALBITS; |
109 | EMACS_INT gdb_gctypebits = GCTYPEBITS; | |
30aa3f19 GM |
110 | #ifdef DATA_SEG_BITS |
111 | EMACS_INT gdb_data_seg_bits = DATA_SEG_BITS; | |
112 | #else | |
df50cf6c | 113 | EMACS_INT gdb_data_seg_bits = 0; |
30aa3f19 | 114 | #endif |
00da0e4a | 115 | EMACS_INT PVEC_FLAG = PSEUDOVECTOR_FLAG; |
3fba6ca9 | 116 | EMACS_INT gdb_array_mark_flag = ARRAY_MARK_FLAG; |
6baa02d6 EZ |
117 | /* GDB might say "No enum type named pvec_type" if we don't have at |
118 | least one symbol with that type, and then xbacktrace could fail. */ | |
119 | enum pvec_type gdb_pvec_type = PVEC_TYPE_MASK; | |
30aa3f19 | 120 | |
7db35a48 | 121 | /* Command line args from shell, as list of strings. */ |
f927c5ae JB |
122 | Lisp_Object Vcommand_line_args; |
123 | ||
59653951 JB |
124 | /* The name under which Emacs was invoked, with any leading directory |
125 | names discarded. */ | |
126 | Lisp_Object Vinvocation_name; | |
127 | ||
ace40a69 RS |
128 | /* The directory name from which Emacs was invoked. */ |
129 | Lisp_Object Vinvocation_directory; | |
130 | ||
07f4d123 RS |
131 | /* The directory name in which to find subdirs such as lisp and etc. |
132 | nil means get them only from PATH_LOADSEARCH. */ | |
133 | Lisp_Object Vinstallation_directory; | |
134 | ||
e5d77022 JB |
135 | /* Hook run by `kill-emacs' before it does really anything. */ |
136 | Lisp_Object Vkill_emacs_hook; | |
137 | ||
7e9fa161 JB |
138 | /* Empty lisp strings. To avoid having to build any others. */ |
139 | Lisp_Object empty_unibyte_string, empty_multibyte_string; | |
f9a6326d | 140 | |
074a066b GV |
141 | /* Search path separator. */ |
142 | Lisp_Object Vpath_separator; | |
143 | ||
f927c5ae JB |
144 | /* Set nonzero after Emacs has started up the first time. |
145 | Prevents reinitialization of the Lisp world and keymaps | |
146 | on subsequent starts. */ | |
147 | int initialized; | |
148 | ||
15aaf1b5 RS |
149 | #ifdef DOUG_LEA_MALLOC |
150 | /* Preserves a pointer to the memory allocated that copies that | |
151 | static data inside glibc's malloc. */ | |
152 | void *malloc_state_ptr; | |
153 | /* From glibc, a routine that returns a copy of the malloc internal state. */ | |
154 | extern void *malloc_get_state (); | |
155 | /* From glibc, a routine that overwrites the malloc internal state. */ | |
fa8459a3 | 156 | extern int malloc_set_state (); |
7c9cd446 AS |
157 | /* Non-zero if the MALLOC_CHECK_ enviroment variable was set while |
158 | dumping. Used to work around a bug in glibc's malloc. */ | |
159 | int malloc_using_checking; | |
15aaf1b5 RS |
160 | #endif |
161 | ||
271c7b7c | 162 | /* Variable whose value is symbol giving operating system type. */ |
f927c5ae | 163 | Lisp_Object Vsystem_type; |
271c7b7c RS |
164 | |
165 | /* Variable whose value is string giving configuration built for. */ | |
166 | Lisp_Object Vsystem_configuration; | |
f0fc0b1a KH |
167 | |
168 | /* Variable whose value is string giving configuration options, | |
169 | for use when reporting bugs. */ | |
170 | Lisp_Object Vsystem_configuration_options; | |
171 | ||
213d0b1f RS |
172 | Lisp_Object Qfile_name_handler_alist; |
173 | ||
68c45bf0 | 174 | /* Current and previous system locales for messages and time. */ |
ca9c0567 PE |
175 | Lisp_Object Vsystem_messages_locale; |
176 | Lisp_Object Vprevious_system_messages_locale; | |
177 | Lisp_Object Vsystem_time_locale; | |
178 | Lisp_Object Vprevious_system_time_locale; | |
68c45bf0 | 179 | |
7d0393cf | 180 | /* If non-zero, emacs should not attempt to use a window-specific code, |
7db35a48 | 181 | but instead should use the virtual terminal under which it was started. */ |
f927c5ae JB |
182 | int inhibit_window_system; |
183 | ||
5aa7f46a JB |
184 | /* If nonzero, set Emacs to run at this priority. This is also used |
185 | in child_setup and sys_suspend to make sure subshells run at normal | |
7db35a48 | 186 | priority; those functions have their own extern declaration. */ |
31ade731 | 187 | EMACS_INT emacs_priority; |
3005da00 | 188 | |
7db35a48 PJ |
189 | /* If non-zero, a filter or a sentinel is running. Tested to save the match |
190 | data on the first attempt to change it inside asynchronous code. */ | |
7074fde6 FP |
191 | int running_asynch_code; |
192 | ||
647cec74 | 193 | #ifdef BSD_PGRPS |
9ae8f997 JB |
194 | /* See sysdep.c. */ |
195 | extern int inherited_pgroup; | |
196 | #endif | |
197 | ||
f927c5ae | 198 | #ifdef HAVE_X_WINDOWS |
7db35a48 | 199 | /* If non-zero, -d was specified, meaning we're using some window system. */ |
f927c5ae JB |
200 | int display_arg; |
201 | #endif | |
202 | ||
203 | /* An address near the bottom of the stack. | |
204 | Tells GC how to save a copy of the stack. */ | |
205 | char *stack_bottom; | |
206 | ||
dede2792 JD |
207 | /* The address where the heap starts (from the first sbrk (0) call). */ |
208 | static void *my_heap_start; | |
209 | ||
210 | /* The gap between BSS end and heap start as far as we can tell. */ | |
211 | static unsigned long heap_bss_diff; | |
212 | ||
213 | /* If the gap between BSS end and heap start is larger than this we try to | |
214 | work around it, and if that fails, output a warning in dump-emacs. */ | |
215 | #define MAX_HEAP_BSS_DIFF (1024*1024) | |
216 | ||
217 | ||
8ba50e1a | 218 | #ifdef HAVE_WINDOW_SYSTEM |
2246281f | 219 | extern Lisp_Object Vinitial_window_system; |
8ba50e1a | 220 | #endif /* HAVE_WINDOW_SYSTEM */ |
f927c5ae | 221 | |
1090a161 RS |
222 | extern Lisp_Object Vauto_save_list_file_name; |
223 | ||
9db03f6c KS |
224 | extern Lisp_Object Vinhibit_redisplay; |
225 | ||
f927c5ae JB |
226 | #ifdef USG_SHARED_LIBRARIES |
227 | /* If nonzero, this is the place to put the end of the writable segment | |
228 | at startup. */ | |
229 | ||
230 | unsigned int bss_end = 0; | |
231 | #endif | |
232 | ||
233 | /* Nonzero means running Emacs without interactive terminal. */ | |
234 | ||
235 | int noninteractive; | |
236 | ||
237 | /* Value of Lisp variable `noninteractive'. | |
238 | Normally same as C variable `noninteractive' | |
239 | but nothing terrible happens if user sets this one. */ | |
240 | ||
241 | int noninteractive1; | |
e29f86e4 RS |
242 | |
243 | /* Save argv and argc. */ | |
244 | char **initial_argv; | |
245 | int initial_argc; | |
081bef73 RS |
246 | |
247 | static void sort_args (); | |
dfcf069d | 248 | void syms_of_emacs (); |
bd4590ba | 249 | |
6b61353c KH |
250 | /* MSVC needs each string be shorter than 2048 bytes, so the usage |
251 | strings below are split to not overflow this limit. */ | |
73ebcd25 | 252 | #define USAGE1 "\ |
bd4590ba GM |
253 | Usage: %s [OPTION-OR-FILENAME]...\n\ |
254 | \n\ | |
255 | Run Emacs, the extensible, customizable, self-documenting real-time\n\ | |
256 | display editor. The recommended way to start Emacs for normal editing\n\ | |
257 | is with no options at all.\n\ | |
258 | \n\ | |
49ca717b | 259 | Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\ |
bd4590ba GM |
260 | read the main documentation for these command-line arguments.\n\ |
261 | \n\ | |
262 | Initialization options:\n\ | |
263 | \n\ | |
6b61353c KH |
264 | --batch do not do interactive display; implies -q\n\ |
265 | --debug-init enable Emacs Lisp debugger for init file\n\ | |
253ed25e | 266 | --disable-font-backend do not use font backend (only if compiled)\n\ |
6b61353c KH |
267 | --display, -d DISPLAY use X server DISPLAY\n\ |
268 | --multibyte, --no-unibyte inhibit the effect of EMACS_UNIBYTE\n\ | |
269 | --no-desktop do not load a saved desktop\n\ | |
270 | --no-init-file, -q load neither ~/.emacs nor default.el\n\ | |
271 | --no-shared-memory, -nl do not use shared memory\n\ | |
272 | --no-site-file do not load site-start.el\n\ | |
273 | --no-splash do not display a splash screen on startup\n\ | |
2ff86b4e | 274 | --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\ |
bae52079 | 275 | --quick, -Q equivalent to -q --no-site-file --no-splash\n\ |
6b61353c KH |
276 | --script FILE run FILE as an Emacs Lisp script\n\ |
277 | --terminal, -t DEVICE use DEVICE for terminal I/O\n\ | |
bd4590ba | 278 | --unibyte, --no-multibyte run Emacs in unibyte mode\n\ |
6b61353c KH |
279 | --user, -u USER load ~USER/.emacs instead of your own\n\ |
280 | \n%s" | |
281 | ||
282 | #define USAGE2 "\ | |
bd4590ba GM |
283 | Action options:\n\ |
284 | \n\ | |
6b61353c | 285 | FILE visit FILE using find-file\n\ |
1dce1149 RS |
286 | +LINE go to line LINE in next FILE\n\ |
287 | +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\ | |
6b61353c KH |
288 | --directory, -L DIR add DIR to variable load-path\n\ |
289 | --eval EXPR evaluate Emacs Lisp expression EXPR\n\ | |
290 | --execute EXPR evaluate Emacs Lisp expression EXPR\n\ | |
291 | --file FILE visit FILE using find-file\n\ | |
292 | --find-file FILE visit FILE using find-file\n\ | |
293 | --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\ | |
294 | --insert FILE insert contents of FILE into current buffer\n\ | |
295 | --kill exit without asking for confirmation\n\ | |
296 | --load, -l FILE load Emacs Lisp FILE using the load function\n\ | |
297 | --visit FILE visit FILE using find-file\n\ | |
73ebcd25 AI |
298 | \n" |
299 | ||
6b61353c | 300 | #define USAGE3 "\ |
5b2ca26b | 301 | Display options:\n\ |
bd4590ba | 302 | \n\ |
6b61353c | 303 | --background-color, -bg COLOR window background color\n\ |
2ff86b4e NR |
304 | --basic-display, -D disable many display features;\n\ |
305 | used for debugging Emacs\n\ | |
6b61353c KH |
306 | --border-color, -bd COLOR main border color\n\ |
307 | --border-width, -bw WIDTH width of main border\n\ | |
ced74849 | 308 | --color, --color=MODE override color mode for character terminals;\n\ |
6b61353c KH |
309 | MODE defaults to `auto', and can also\n\ |
310 | be `never', `auto', `always',\n\ | |
311 | or a mode name like `ansi8'\n\ | |
312 | --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\ | |
313 | --font, -fn FONT default font; must be fixed-width\n\ | |
314 | --foreground-color, -fg COLOR window foreground color\n\ | |
315 | --fullheight, -fh make the first frame high as the screen\n\ | |
316 | --fullscreen, -fs make first frame fullscreen\n\ | |
317 | --fullwidth, -fw make the first frame wide as the screen\n\ | |
318 | --geometry, -g GEOMETRY window geometry\n\ | |
f9e36a6d | 319 | --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\ |
6b61353c KH |
320 | --iconic start Emacs in iconified state\n\ |
321 | --internal-border, -ib WIDTH width between text and main border\n\ | |
322 | --line-spacing, -lsp PIXELS additional space to put between lines\n\ | |
323 | --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\ | |
324 | --name NAME title for initial Emacs frame\n\ | |
49ca717b | 325 | --no-blinking-cursor, -nbc disable blinking cursor\n\ |
6b61353c KH |
326 | --reverse-video, -r, -rv switch foreground and background\n\ |
327 | --title, -T TITLE title for initial Emacs frame\n\ | |
328 | --vertical-scroll-bars, -vb enable vertical scroll bars\n\ | |
329 | --xrm XRESOURCES set additional X resources\n\ | |
1540a61a | 330 | --parent-id XID set parent window\n\ |
6b61353c KH |
331 | --help display this help and exit\n\ |
332 | --version output version information and exit\n\ | |
07beadff JR |
333 | \n" |
334 | ||
335 | #define USAGE4 "\ | |
bd4590ba GM |
336 | You can generally also specify long option names with a single -; for\n\ |
337 | example, -batch as well as --batch. You can use any unambiguous\n\ | |
338 | abbreviation for a --option.\n\ | |
339 | \n\ | |
340 | Various environment variables and window system resources also affect\n\ | |
341 | Emacs' operation. See the main documentation.\n\ | |
07beadff | 342 | \n\ |
d883731c | 343 | Report bugs to %s. First, please see the Bugs\n\ |
bd4590ba GM |
344 | section of the Emacs manual or the file BUGS.\n" |
345 | ||
f927c5ae | 346 | \f |
7db35a48 | 347 | /* Signal code for the fatal signal that was received. */ |
f927c5ae JB |
348 | int fatal_error_code; |
349 | ||
7db35a48 | 350 | /* Nonzero if handling a fatal error already. */ |
f927c5ae JB |
351 | int fatal_error_in_progress; |
352 | ||
7db35a48 | 353 | /* If non-null, call this function from fatal_error_signal before |
4fab758d GM |
354 | committing suicide. */ |
355 | ||
356 | void (*fatal_error_signal_hook) P_ ((void)); | |
357 | ||
333f1b6f | 358 | #ifdef HAVE_GTK_AND_PTHREAD |
033b73e2 | 359 | /* When compiled with GTK and running under Gnome, multiple threads may be |
333f1b6f JD |
360 | created. Keep track of our main thread to make sure signals are delivered |
361 | to it (see syssignal.h). */ | |
362 | ||
363 | pthread_t main_thread; | |
364 | #endif | |
365 | ||
4fab758d | 366 | |
7db35a48 | 367 | /* Handle bus errors, invalid instruction, etc. */ |
2447c626 | 368 | SIGTYPE |
f927c5ae JB |
369 | fatal_error_signal (sig) |
370 | int sig; | |
371 | { | |
333f1b6f | 372 | SIGNAL_THREAD_CHECK (sig); |
f927c5ae JB |
373 | fatal_error_code = sig; |
374 | signal (sig, SIG_DFL); | |
375 | ||
061b7f94 RS |
376 | TOTALLY_UNBLOCK_INPUT; |
377 | ||
f927c5ae | 378 | /* If fatal error occurs in code below, avoid infinite recursion. */ |
8090eb09 JB |
379 | if (! fatal_error_in_progress) |
380 | { | |
381 | fatal_error_in_progress = 1; | |
f927c5ae | 382 | |
f7ab4e3d | 383 | shut_down_emacs (sig, 0, Qnil); |
8090eb09 | 384 | } |
f927c5ae JB |
385 | |
386 | #ifdef VMS | |
f927c5ae JB |
387 | LIB$STOP (SS$_ABORT); |
388 | #else | |
8090eb09 JB |
389 | /* Signal the same code; this time it will really be fatal. |
390 | Remember that since we're in a signal handler, the signal we're | |
391 | going to send is probably blocked, so we have to unblock it if we | |
392 | want to really receive it. */ | |
29b89fe0 | 393 | #ifndef MSDOS |
a90538cb | 394 | sigunblock (sigmask (fatal_error_code)); |
29b89fe0 | 395 | #endif |
4fab758d GM |
396 | |
397 | if (fatal_error_signal_hook) | |
398 | fatal_error_signal_hook (); | |
7db35a48 | 399 | |
f927c5ae JB |
400 | kill (getpid (), fatal_error_code); |
401 | #endif /* not VMS */ | |
402 | } | |
271c7b7c RS |
403 | |
404 | #ifdef SIGDANGER | |
405 | ||
16c323ee | 406 | /* Handler for SIGDANGER. */ |
271c7b7c RS |
407 | SIGTYPE |
408 | memory_warning_signal (sig) | |
409 | int sig; | |
410 | { | |
411 | signal (sig, memory_warning_signal); | |
333f1b6f | 412 | SIGNAL_THREAD_CHECK (sig); |
271c7b7c RS |
413 | |
414 | malloc_warning ("Operating system warns that virtual memory is running low.\n"); | |
55796183 RS |
415 | |
416 | /* It might be unsafe to call do_auto_save now. */ | |
417 | force_auto_save_soon (); | |
271c7b7c RS |
418 | } |
419 | #endif | |
fcf01ad3 RS |
420 | |
421 | /* We define abort, rather than using it from the library, | |
c9fe9cce | 422 | so that GDB can return from a breakpoint here. |
7db35a48 | 423 | MSDOS has its own definition in msdos.c. */ |
fcf01ad3 | 424 | |
37e2fdd2 | 425 | #if ! defined (DOS_NT) && ! defined (NO_ABORT) |
ca9c0567 | 426 | |
4624371d | 427 | void |
fcf01ad3 RS |
428 | abort () |
429 | { | |
430 | kill (getpid (), SIGABRT); | |
37e2fdd2 RS |
431 | /* This shouldn't be executed, but it prevents a warning. */ |
432 | exit (1); | |
fcf01ad3 | 433 | } |
c9fe9cce | 434 | #endif |
fcf01ad3 | 435 | |
f927c5ae | 436 | \f |
7db35a48 | 437 | /* Code for dealing with Lisp access to the Unix command line. */ |
f927c5ae | 438 | |
dfcf069d | 439 | static void |
f927c5ae JB |
440 | init_cmdargs (argc, argv, skip_args) |
441 | int argc; | |
442 | char **argv; | |
443 | int skip_args; | |
444 | { | |
445 | register int i; | |
213d0b1f | 446 | Lisp_Object name, dir, tem; |
aed13378 | 447 | int count = SPECPDL_INDEX (); |
213d0b1f | 448 | Lisp_Object raw_name; |
f927c5ae | 449 | |
e29f86e4 RS |
450 | initial_argv = argv; |
451 | initial_argc = argc; | |
452 | ||
213d0b1f RS |
453 | raw_name = build_string (argv[0]); |
454 | ||
455 | /* Add /: to the front of the name | |
456 | if it would otherwise be treated as magic. */ | |
457 | tem = Ffind_file_name_handler (raw_name, Qt); | |
458 | if (! NILP (tem)) | |
459 | raw_name = concat2 (build_string ("/:"), raw_name); | |
460 | ||
461 | Vinvocation_name = Ffile_name_nondirectory (raw_name); | |
462 | Vinvocation_directory = Ffile_name_directory (raw_name); | |
463 | ||
ace40a69 RS |
464 | /* If we got no directory in argv[0], search PATH to find where |
465 | Emacs actually came from. */ | |
466 | if (NILP (Vinvocation_directory)) | |
467 | { | |
468 | Lisp_Object found; | |
469 | int yes = openp (Vexec_path, Vinvocation_name, | |
10c0915e | 470 | Vexec_suffixes, &found, make_number (X_OK)); |
e443f843 | 471 | if (yes == 1) |
213d0b1f RS |
472 | { |
473 | /* Add /: to the front of the name | |
474 | if it would otherwise be treated as magic. */ | |
475 | tem = Ffind_file_name_handler (found, Qt); | |
476 | if (! NILP (tem)) | |
477 | found = concat2 (build_string ("/:"), found); | |
478 | Vinvocation_directory = Ffile_name_directory (found); | |
479 | } | |
ace40a69 | 480 | } |
59653951 | 481 | |
4133b300 RS |
482 | if (!NILP (Vinvocation_directory) |
483 | && NILP (Ffile_name_absolute_p (Vinvocation_directory))) | |
213d0b1f RS |
484 | /* Emacs was started with relative path, like ./emacs. |
485 | Make it absolute. */ | |
4133b300 RS |
486 | Vinvocation_directory = Fexpand_file_name (Vinvocation_directory, Qnil); |
487 | ||
07f4d123 RS |
488 | Vinstallation_directory = Qnil; |
489 | ||
490 | if (!NILP (Vinvocation_directory)) | |
491 | { | |
492 | dir = Vinvocation_directory; | |
493 | name = Fexpand_file_name (Vinvocation_name, dir); | |
494 | while (1) | |
495 | { | |
f5ab9736 | 496 | Lisp_Object tem, lib_src_exists; |
07f4d123 RS |
497 | Lisp_Object etc_exists, info_exists; |
498 | ||
f5ab9736 RS |
499 | /* See if dir contains subdirs for use by Emacs. |
500 | Check for the ones that would exist in a build directory, | |
501 | not including lisp and info. */ | |
502 | tem = Fexpand_file_name (build_string ("lib-src"), dir); | |
503 | lib_src_exists = Ffile_exists_p (tem); | |
de004cc6 | 504 | |
70344b34 | 505 | #ifdef MSDOS |
de004cc6 RS |
506 | /* MSDOS installations frequently remove lib-src, but we still |
507 | must set installation-directory, or else info won't find | |
508 | its files (it uses the value of installation-directory). */ | |
509 | tem = Fexpand_file_name (build_string ("info"), dir); | |
510 | info_exists = Ffile_exists_p (tem); | |
70344b34 EZ |
511 | #else |
512 | info_exists = Qnil; | |
513 | #endif | |
de004cc6 RS |
514 | |
515 | if (!NILP (lib_src_exists) || !NILP (info_exists)) | |
07f4d123 | 516 | { |
f5ab9736 RS |
517 | tem = Fexpand_file_name (build_string ("etc"), dir); |
518 | etc_exists = Ffile_exists_p (tem); | |
519 | if (!NILP (etc_exists)) | |
07f4d123 | 520 | { |
f5ab9736 RS |
521 | Vinstallation_directory |
522 | = Ffile_name_as_directory (dir); | |
523 | break; | |
07f4d123 RS |
524 | } |
525 | } | |
526 | ||
527 | /* See if dir's parent contains those subdirs. */ | |
f5ab9736 RS |
528 | tem = Fexpand_file_name (build_string ("../lib-src"), dir); |
529 | lib_src_exists = Ffile_exists_p (tem); | |
de004cc6 | 530 | |
70344b34 EZ |
531 | |
532 | #ifdef MSDOS | |
533 | /* See the MSDOS commentary above. */ | |
de004cc6 RS |
534 | tem = Fexpand_file_name (build_string ("../info"), dir); |
535 | info_exists = Ffile_exists_p (tem); | |
70344b34 EZ |
536 | #else |
537 | info_exists = Qnil; | |
538 | #endif | |
de004cc6 RS |
539 | |
540 | if (!NILP (lib_src_exists) || !NILP (info_exists)) | |
07f4d123 | 541 | { |
f5ab9736 RS |
542 | tem = Fexpand_file_name (build_string ("../etc"), dir); |
543 | etc_exists = Ffile_exists_p (tem); | |
544 | if (!NILP (etc_exists)) | |
07f4d123 | 545 | { |
f5ab9736 RS |
546 | tem = Fexpand_file_name (build_string (".."), dir); |
547 | Vinstallation_directory | |
548 | = Ffile_name_as_directory (tem); | |
549 | break; | |
07f4d123 RS |
550 | } |
551 | } | |
552 | ||
553 | /* If the Emacs executable is actually a link, | |
554 | next try the dir that the link points into. */ | |
555 | tem = Ffile_symlink_p (name); | |
556 | if (!NILP (tem)) | |
557 | { | |
260ec24d | 558 | name = Fexpand_file_name (tem, dir); |
07f4d123 RS |
559 | dir = Ffile_name_directory (name); |
560 | } | |
561 | else | |
562 | break; | |
563 | } | |
564 | } | |
565 | ||
f927c5ae JB |
566 | Vcommand_line_args = Qnil; |
567 | ||
568 | for (i = argc - 1; i >= 0; i--) | |
569 | { | |
570 | if (i == 0 || i > skip_args) | |
a520393d KH |
571 | /* For the moment, we keep arguments as is in unibyte strings. |
572 | They are decoded in the function command-line after we know | |
573 | locale-coding-system. */ | |
f927c5ae | 574 | Vcommand_line_args |
68db37aa | 575 | = Fcons (make_unibyte_string (argv[i], strlen (argv[i])), |
a520393d | 576 | Vcommand_line_args); |
f927c5ae | 577 | } |
213d0b1f RS |
578 | |
579 | unbind_to (count, Qnil); | |
f927c5ae | 580 | } |
59653951 JB |
581 | |
582 | DEFUN ("invocation-name", Finvocation_name, Sinvocation_name, 0, 0, 0, | |
7db35a48 PJ |
583 | doc: /* Return the program name that was used to run Emacs. |
584 | Any directory names are omitted. */) | |
585 | () | |
59653951 JB |
586 | { |
587 | return Fcopy_sequence (Vinvocation_name); | |
588 | } | |
589 | ||
ace40a69 | 590 | DEFUN ("invocation-directory", Finvocation_directory, Sinvocation_directory, |
7db35a48 PJ |
591 | 0, 0, 0, |
592 | doc: /* Return the directory name in which the Emacs executable was located. */) | |
593 | () | |
ace40a69 RS |
594 | { |
595 | return Fcopy_sequence (Vinvocation_directory); | |
596 | } | |
597 | ||
f927c5ae JB |
598 | \f |
599 | #ifdef VMS | |
600 | #ifdef LINK_CRTL_SHARE | |
34035df3 | 601 | #ifdef SHARABLE_LIB_BUG |
f927c5ae | 602 | extern noshare char **environ; |
34035df3 | 603 | #endif /* SHARABLE_LIB_BUG */ |
f927c5ae JB |
604 | #endif /* LINK_CRTL_SHARE */ |
605 | #endif /* VMS */ | |
606 | ||
0269dedb RS |
607 | #ifdef HAVE_TZSET |
608 | /* A valid but unlikely value for the TZ environment value. | |
609 | It is OK (though a bit slower) if the user actually chooses this value. */ | |
610 | static char dump_tz[] = "UtC0"; | |
611 | #endif | |
612 | ||
a90538cb | 613 | #ifndef ORDINARY_LINK |
efd241cc RS |
614 | /* We don't include crtbegin.o and crtend.o in the link, |
615 | so these functions and variables might be missed. | |
616 | Provide dummy definitions to avoid error. | |
617 | (We don't have any real constructors or destructors.) */ | |
618 | #ifdef __GNUC__ | |
46e65b73 | 619 | #ifndef GCC_CTORS_IN_LIBC |
dfcf069d | 620 | void __do_global_ctors () |
efd241cc | 621 | {} |
dfcf069d | 622 | void __do_global_ctors_aux () |
c83a7064 | 623 | {} |
dfcf069d | 624 | void __do_global_dtors () |
33143604 | 625 | {} |
554061d8 | 626 | /* GNU/Linux has a bug in its library; avoid an error. */ |
8a2a6032 | 627 | #ifndef GNU_LINUX |
c83a7064 | 628 | char * __CTOR_LIST__[2] = { (char *) (-1), 0 }; |
64c1864a | 629 | #endif |
c83a7064 | 630 | char * __DTOR_LIST__[2] = { (char *) (-1), 0 }; |
46e65b73 | 631 | #endif /* GCC_CTORS_IN_LIBC */ |
dfcf069d | 632 | void __main () |
efd241cc | 633 | {} |
efd241cc | 634 | #endif /* __GNUC__ */ |
a90538cb | 635 | #endif /* ORDINARY_LINK */ |
efd241cc | 636 | |
e2925360 KH |
637 | /* Test whether the next argument in ARGV matches SSTR or a prefix of |
638 | LSTR (at least MINLEN characters). If so, then if VALPTR is non-null | |
639 | (the argument is supposed to have a value) store in *VALPTR either | |
640 | the next argument or the portion of this one after the equal sign. | |
641 | ARGV is read starting at position *SKIPPTR; this index is advanced | |
642 | by the number of arguments used. | |
643 | ||
644 | Too bad we can't just use getopt for all of this, but we don't have | |
645 | enough information to do it right. */ | |
081bef73 | 646 | |
e2925360 | 647 | static int |
df6530f8 | 648 | argmatch (argv, argc, sstr, lstr, minlen, valptr, skipptr) |
e2925360 | 649 | char **argv; |
df6530f8 | 650 | int argc; |
e2925360 KH |
651 | char *sstr; |
652 | char *lstr; | |
653 | int minlen; | |
654 | char **valptr; | |
655 | int *skipptr; | |
656 | { | |
6bbd7a29 | 657 | char *p = NULL; |
e2925360 | 658 | int arglen; |
df6530f8 RS |
659 | char *arg; |
660 | ||
661 | /* Don't access argv[argc]; give up in advance. */ | |
662 | if (argc <= *skipptr + 1) | |
663 | return 0; | |
664 | ||
665 | arg = argv[*skipptr+1]; | |
e2925360 KH |
666 | if (arg == NULL) |
667 | return 0; | |
668 | if (strcmp (arg, sstr) == 0) | |
669 | { | |
670 | if (valptr != NULL) | |
671 | { | |
672 | *valptr = argv[*skipptr+2]; | |
673 | *skipptr += 2; | |
674 | } | |
675 | else | |
676 | *skipptr += 1; | |
677 | return 1; | |
678 | } | |
679 | arglen = (valptr != NULL && (p = index (arg, '=')) != NULL | |
680 | ? p - arg : strlen (arg)); | |
c03e1113 | 681 | if (lstr == 0 || arglen < minlen || strncmp (arg, lstr, arglen) != 0) |
e2925360 KH |
682 | return 0; |
683 | else if (valptr == NULL) | |
684 | { | |
685 | *skipptr += 1; | |
686 | return 1; | |
687 | } | |
688 | else if (p != NULL) | |
689 | { | |
690 | *valptr = p+1; | |
691 | *skipptr += 1; | |
692 | return 1; | |
693 | } | |
694 | else if (argv[*skipptr+2] != NULL) | |
695 | { | |
696 | *valptr = argv[*skipptr+2]; | |
697 | *skipptr += 2; | |
698 | return 1; | |
699 | } | |
700 | else | |
701 | { | |
702 | return 0; | |
703 | } | |
704 | } | |
705 | ||
b6779252 | 706 | #ifdef DOUG_LEA_MALLOC |
f927c5ae | 707 | |
b6779252 KH |
708 | /* malloc can be invoked even before main (e.g. by the dynamic |
709 | linker), so the dumped malloc state must be restored as early as | |
710 | possible using this special hook. */ | |
711 | ||
712 | static void | |
713 | malloc_initialize_hook () | |
714 | { | |
1f9c3929 | 715 | #ifndef USE_CRT_DLL |
b6779252 | 716 | extern char **environ; |
1f9c3929 | 717 | #endif |
6000fe37 | 718 | |
15aaf1b5 RS |
719 | if (initialized) |
720 | { | |
7c9cd446 AS |
721 | if (!malloc_using_checking) |
722 | /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be | |
723 | ignored if the heap to be restored was constructed without | |
d942e12a AS |
724 | malloc checking. Can't use unsetenv, since that calls malloc. */ |
725 | { | |
726 | char **p; | |
727 | ||
a57c4026 | 728 | for (p = environ; p && *p; p++) |
d942e12a AS |
729 | if (strncmp (*p, "MALLOC_CHECK_=", 14) == 0) |
730 | { | |
731 | do | |
732 | *p = p[1]; | |
733 | while (*++p); | |
734 | break; | |
735 | } | |
736 | } | |
b6779252 | 737 | |
15aaf1b5 | 738 | malloc_set_state (malloc_state_ptr); |
68db37aa | 739 | #ifndef XMALLOC_OVERRUN_CHECK |
15aaf1b5 | 740 | free (malloc_state_ptr); |
68db37aa | 741 | #endif |
15aaf1b5 | 742 | } |
7c9cd446 | 743 | else |
dede2792 JD |
744 | { |
745 | if (my_heap_start == 0) | |
746 | my_heap_start = sbrk (0); | |
747 | malloc_using_checking = getenv ("MALLOC_CHECK_") != NULL; | |
748 | } | |
b6779252 KH |
749 | } |
750 | ||
751 | void (*__malloc_initialize_hook) () = malloc_initialize_hook; | |
752 | ||
753 | #endif /* DOUG_LEA_MALLOC */ | |
754 | ||
d883731c PJ |
755 | |
756 | #define REPORT_EMACS_BUG_ADDRESS "bug-gnu-emacs@gnu.org" | |
757 | #define REPORT_EMACS_BUG_PRETEST_ADDRESS "emacs-pretest-bug@gnu.org" | |
758 | ||
759 | /* This function is used to determine an address to which bug report should | |
760 | be sent. */ | |
761 | ||
400d6fa9 PJ |
762 | char * |
763 | bug_reporting_address () | |
d883731c | 764 | { |
400d6fa9 | 765 | int count = 0; |
d883731c PJ |
766 | Lisp_Object temp; |
767 | char *string; | |
768 | ||
769 | temp = Fsymbol_value (intern ("emacs-version")); | |
770 | ||
771 | /* When `emacs-version' is invalid, use normal address. */ | |
772 | if (!STRINGP(temp)) | |
773 | return REPORT_EMACS_BUG_ADDRESS; | |
774 | ||
d5db4077 | 775 | string = SDATA (temp); |
d883731c | 776 | |
400d6fa9 PJ |
777 | /* Count dots in `emacs-version'. */ |
778 | while (*string) | |
779 | { | |
780 | if (*string == '.') | |
781 | count++; | |
782 | string++; | |
783 | } | |
d883731c PJ |
784 | |
785 | /* When `emacs-version' has at least three dots, it is development or | |
786 | pretest version of Emacs. */ | |
400d6fa9 | 787 | return count >= 3 ? REPORT_EMACS_BUG_PRETEST_ADDRESS : REPORT_EMACS_BUG_ADDRESS; |
d883731c PJ |
788 | } |
789 | ||
790 | ||
b6779252 KH |
791 | /* ARGSUSED */ |
792 | int | |
3861bdcd DL |
793 | main (argc, argv |
794 | #ifdef VMS | |
795 | , envp | |
796 | #endif | |
797 | ) | |
b6779252 KH |
798 | int argc; |
799 | char **argv; | |
3861bdcd | 800 | #ifdef VMS |
b6779252 | 801 | char **envp; |
3861bdcd | 802 | #endif |
b6779252 | 803 | { |
2313132f | 804 | #if GC_MARK_STACK |
39ec21ea GM |
805 | Lisp_Object dummy; |
806 | #endif | |
b6779252 | 807 | char stack_bottom_variable; |
68c45bf0 | 808 | int do_initial_setlocale; |
b6779252 | 809 | int skip_args = 0; |
1f9c3929 | 810 | #ifndef USE_CRT_DLL |
b6779252 | 811 | extern int errno; |
1f9c3929 | 812 | #endif |
b6779252 KH |
813 | #ifdef HAVE_SETRLIMIT |
814 | struct rlimit rlim; | |
815 | #endif | |
816 | int no_loadup = 0; | |
6e910e07 | 817 | char *junk = 0; |
b6779252 | 818 | |
2313132f | 819 | #if GC_MARK_STACK |
39ec21ea GM |
820 | extern Lisp_Object *stack_base; |
821 | stack_base = &dummy; | |
822 | #endif | |
823 | ||
dede2792 JD |
824 | if (!initialized) |
825 | { | |
826 | extern char my_endbss[]; | |
827 | extern char *my_endbss_static; | |
828 | ||
829 | if (my_heap_start == 0) | |
830 | my_heap_start = sbrk (0); | |
831 | ||
832 | heap_bss_diff = (char *)my_heap_start - max (my_endbss, my_endbss_static); | |
833 | } | |
834 | ||
b6779252 KH |
835 | #ifdef LINUX_SBRK_BUG |
836 | __sbrk (1); | |
15aaf1b5 RS |
837 | #endif |
838 | ||
d785cf9e RS |
839 | #ifdef RUN_TIME_REMAP |
840 | if (initialized) | |
841 | run_time_remap (argv[0]); | |
842 | #endif | |
843 | ||
3fb79984 | 844 | #ifdef MAC_OSX |
e0f712ba AC |
845 | if (!initialized) |
846 | unexec_init_emacs_zone (); | |
847 | #endif | |
848 | ||
081bef73 | 849 | sort_args (argc, argv); |
956e3c7e RS |
850 | argc = 0; |
851 | while (argv[argc]) argc++; | |
081bef73 | 852 | |
3270ae6e KH |
853 | if (argmatch (argv, argc, "-version", "--version", 3, NULL, &skip_args) |
854 | /* We don't know the version number unless this is a dumped Emacs. | |
855 | So ignore --version otherwise. */ | |
856 | && initialized) | |
1702afef | 857 | { |
5cf9ca93 | 858 | Lisp_Object tem, tem2; |
1702afef | 859 | tem = Fsymbol_value (intern ("emacs-version")); |
5cf9ca93 | 860 | tem2 = Fsymbol_value (intern ("emacs-copyright")); |
1702afef RS |
861 | if (!STRINGP (tem)) |
862 | { | |
863 | fprintf (stderr, "Invalid value of `emacs-version'\n"); | |
864 | exit (1); | |
865 | } | |
5cf9ca93 GM |
866 | if (!STRINGP (tem2)) |
867 | { | |
868 | fprintf (stderr, "Invalid value of `emacs-copyright'\n"); | |
869 | exit (1); | |
870 | } | |
1702afef RS |
871 | else |
872 | { | |
d5db4077 | 873 | printf ("GNU Emacs %s\n", SDATA (tem)); |
5cf9ca93 | 874 | printf ("%s\n", SDATA(tem2)); |
b455c665 RS |
875 | printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n"); |
876 | printf ("You may redistribute copies of Emacs\n"); | |
877 | printf ("under the terms of the GNU General Public License.\n"); | |
878 | printf ("For more information about these matters, "); | |
94487c4e | 879 | printf ("see the file named COPYING.\n"); |
1702afef RS |
880 | exit (0); |
881 | } | |
882 | } | |
883 | ||
dede2792 JD |
884 | #ifdef HAVE_PERSONALITY_LINUX32 |
885 | /* See if there is a gap between the end of BSS and the heap. | |
886 | In that case, set personality and exec ourself again. */ | |
887 | if (!initialized | |
888 | && (strcmp (argv[argc-1], "dump") == 0 | |
889 | || strcmp (argv[argc-1], "bootstrap") == 0) | |
890 | && heap_bss_diff > MAX_HEAP_BSS_DIFF) | |
891 | { | |
892 | if (! getenv ("EMACS_HEAP_EXEC")) | |
893 | { | |
894 | /* Set this so we only do this once. */ | |
895 | putenv("EMACS_HEAP_EXEC=true"); | |
711877f3 MY |
896 | |
897 | /* A flag to turn off address randomization which is introduced | |
898 | in linux kernel shipped with fedora core 4 */ | |
899 | #define ADD_NO_RANDOMIZE 0x0040000 | |
900 | personality (PER_LINUX32 | ADD_NO_RANDOMIZE); | |
901 | #undef ADD_NO_RANDOMIZE | |
902 | ||
dede2792 JD |
903 | execvp (argv[0], argv); |
904 | ||
905 | /* If the exec fails, try to dump anyway. */ | |
906 | perror ("execvp"); | |
907 | } | |
908 | } | |
909 | #endif /* HAVE_PERSONALITY_LINUX32 */ | |
910 | ||
911 | ||
f927c5ae JB |
912 | /* Map in shared memory, if we are using that. */ |
913 | #ifdef HAVE_SHM | |
df6530f8 | 914 | if (argmatch (argv, argc, "-nl", "--no-shared-memory", 6, NULL, &skip_args)) |
f927c5ae JB |
915 | { |
916 | map_in_data (0); | |
917 | /* The shared memory was just restored, which clobbered this. */ | |
918 | skip_args = 1; | |
919 | } | |
920 | else | |
921 | { | |
922 | map_in_data (1); | |
923 | /* The shared memory was just restored, which clobbered this. */ | |
924 | skip_args = 0; | |
925 | } | |
926 | #endif | |
927 | ||
19a36ec6 | 928 | #ifdef NeXT |
b9df9faa KH |
929 | { |
930 | extern int malloc_cookie; | |
931 | /* This helps out unexnext.c. */ | |
932 | if (initialized) | |
933 | if (malloc_jumpstart (malloc_cookie) != 0) | |
934 | printf ("malloc jumpstart failed!\n"); | |
935 | } | |
19a36ec6 RS |
936 | #endif /* NeXT */ |
937 | ||
e0f712ba AC |
938 | #ifdef MAC_OSX |
939 | /* Skip process serial number passed in the form -psn_x_y as | |
a4f8f6cf YM |
940 | command-line argument. The WindowServer adds this option when |
941 | Emacs is invoked from the Finder or by the `open' command. In | |
942 | these cases, the working directory becomes `/', so we change it | |
943 | to the user's home directory. */ | |
e0f712ba | 944 | if (argc > skip_args + 1 && strncmp (argv[skip_args+1], "-psn_", 5) == 0) |
a4f8f6cf YM |
945 | { |
946 | chdir (getenv ("HOME")); | |
947 | skip_args++; | |
948 | } | |
e0f712ba AC |
949 | #endif /* MAC_OSX */ |
950 | ||
f927c5ae | 951 | #ifdef VMS |
7db35a48 | 952 | /* If -map specified, map the data file in. */ |
e2925360 KH |
953 | { |
954 | char *file; | |
70646bb5 | 955 | if (argmatch (argv, argc, "-map", "--map-data", 3, &file, &skip_args)) |
e2925360 KH |
956 | mapin_data (file); |
957 | } | |
f927c5ae JB |
958 | |
959 | #ifdef LINK_CRTL_SHARE | |
34035df3 | 960 | #ifdef SHARABLE_LIB_BUG |
7db35a48 | 961 | /* Bletcherous shared libraries! */ |
f927c5ae JB |
962 | if (!stdin) |
963 | stdin = fdopen (0, "r"); | |
964 | if (!stdout) | |
965 | stdout = fdopen (1, "w"); | |
966 | if (!stderr) | |
967 | stderr = fdopen (2, "w"); | |
968 | if (!environ) | |
969 | environ = envp; | |
34035df3 | 970 | #endif /* SHARABLE_LIB_BUG */ |
f927c5ae JB |
971 | #endif /* LINK_CRTL_SHARE */ |
972 | #endif /* VMS */ | |
973 | ||
ea2acec5 | 974 | #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK) |
6c2935e9 RS |
975 | /* Extend the stack space available. |
976 | Don't do that if dumping, since some systems (e.g. DJGPP) | |
977 | might define a smaller stack limit at that time. */ | |
978 | if (1 | |
979 | #ifndef CANNOT_DUMP | |
980 | && (!noninteractive || initialized) | |
981 | #endif | |
982 | && !getrlimit (RLIMIT_STACK, &rlim)) | |
53c58b5d | 983 | { |
509a8fcd | 984 | long newlim; |
fa8459a3 | 985 | extern size_t re_max_failures; |
03effc23 KH |
986 | /* Approximate the amount regex.c needs per unit of re_max_failures. */ |
987 | int ratio = 20 * sizeof (char *); | |
988 | /* Then add 33% to cover the size of the smaller stacks that regex.c | |
989 | successively allocates and discards, on its way to the maximum. */ | |
990 | ratio += ratio / 3; | |
991 | /* Add in some extra to cover | |
992 | what we're likely to use for other reasons. */ | |
993 | newlim = re_max_failures * ratio + 200000; | |
d0381a7f RS |
994 | #ifdef __NetBSD__ |
995 | /* NetBSD (at least NetBSD 1.2G and former) has a bug in its | |
996 | stack allocation routine for new process that the allocation | |
997 | fails if stack limit is not on page boundary. So, round up the | |
998 | new limit to page boundary. */ | |
999 | newlim = (newlim + getpagesize () - 1) / getpagesize () * getpagesize(); | |
1000 | #endif | |
509a8fcd | 1001 | if (newlim > rlim.rlim_max) |
6c2935e9 RS |
1002 | { |
1003 | newlim = rlim.rlim_max; | |
03effc23 KH |
1004 | /* Don't let regex.c overflow the stack we have. */ |
1005 | re_max_failures = (newlim - 200000) / ratio; | |
6c2935e9 | 1006 | } |
509a8fcd RS |
1007 | if (rlim.rlim_cur < newlim) |
1008 | rlim.rlim_cur = newlim; | |
1009 | ||
53c58b5d RS |
1010 | setrlimit (RLIMIT_STACK, &rlim); |
1011 | } | |
ea2acec5 | 1012 | #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */ |
53c58b5d | 1013 | |
f927c5ae JB |
1014 | /* Record (approximately) where the stack begins. */ |
1015 | stack_bottom = &stack_bottom_variable; | |
1016 | ||
f927c5ae JB |
1017 | #ifdef USG_SHARED_LIBRARIES |
1018 | if (bss_end) | |
1d233b80 | 1019 | brk ((void *)bss_end); |
f927c5ae JB |
1020 | #endif |
1021 | ||
1022 | clearerr (stdin); | |
9ae8f997 | 1023 | |
f927c5ae | 1024 | #ifndef SYSTEM_MALLOC |
bf7f4e90 RS |
1025 | /* Arrange to get warning messages as memory fills up. */ |
1026 | memory_warnings (0, malloc_warning); | |
9ac0d9e0 | 1027 | |
f5a3c8c4 AI |
1028 | /* Call malloc at least once, to run the initial __malloc_hook. |
1029 | Also call realloc and free for consistency. */ | |
1030 | free (realloc (malloc (4), 4)); | |
bf7f4e90 | 1031 | |
06ca62eb | 1032 | # ifndef SYNC_INPUT |
bf7f4e90 RS |
1033 | /* Arrange to disable interrupt input inside malloc etc. */ |
1034 | uninterrupt_malloc (); | |
06ca62eb | 1035 | # endif /* not SYNC_INPUT */ |
f927c5ae JB |
1036 | #endif /* not SYSTEM_MALLOC */ |
1037 | ||
333f1b6f JD |
1038 | #ifdef HAVE_GTK_AND_PTHREAD |
1039 | main_thread = pthread_self (); | |
1040 | #endif /* HAVE_GTK_AND_PTHREAD */ | |
1041 | ||
edd3ff1d | 1042 | #if defined (MSDOS) || defined (WINDOWSNT) |
29b89fe0 RS |
1043 | /* We do all file input/output as binary files. When we need to translate |
1044 | newlines, we do that manually. */ | |
1045 | _fmode = O_BINARY; | |
edd3ff1d | 1046 | #endif /* MSDOS || WINDOWSNT */ |
18198bb2 | 1047 | |
edd3ff1d | 1048 | #ifdef MSDOS |
18198bb2 RS |
1049 | #if __DJGPP__ >= 2 |
1050 | if (!isatty (fileno (stdin))) | |
1051 | setmode (fileno (stdin), O_BINARY); | |
1052 | if (!isatty (fileno (stdout))) | |
1053 | { | |
1054 | fflush (stdout); | |
1055 | setmode (fileno (stdout), O_BINARY); | |
1056 | } | |
1057 | #else /* not __DJGPP__ >= 2 */ | |
29b89fe0 RS |
1058 | (stdin)->_flag &= ~_IOTEXT; |
1059 | (stdout)->_flag &= ~_IOTEXT; | |
1060 | (stderr)->_flag &= ~_IOTEXT; | |
18198bb2 | 1061 | #endif /* not __DJGPP__ >= 2 */ |
29b89fe0 RS |
1062 | #endif /* MSDOS */ |
1063 | ||
a422068f | 1064 | #ifdef SET_EMACS_PRIORITY |
3005da00 | 1065 | if (emacs_priority) |
5aa7f46a | 1066 | nice (emacs_priority); |
f927c5ae | 1067 | setuid (getuid ()); |
a422068f | 1068 | #endif /* SET_EMACS_PRIORITY */ |
f927c5ae | 1069 | |
68c45bf0 PE |
1070 | /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case. |
1071 | The build procedure uses this while dumping, to ensure that the | |
1072 | dumped Emacs does not have its system locale tables initialized, | |
1073 | as that might cause screwups when the dumped Emacs starts up. */ | |
1074 | { | |
1075 | char *lc_all = getenv ("LC_ALL"); | |
1076 | do_initial_setlocale = ! lc_all || strcmp (lc_all, "C"); | |
1077 | } | |
1078 | ||
1079 | /* Set locale now, so that initial error messages are localized properly. | |
1080 | fixup_locale must wait until later, since it builds strings. */ | |
1081 | if (do_initial_setlocale) | |
1082 | setlocale (LC_ALL, ""); | |
1083 | ||
f927c5ae JB |
1084 | inhibit_window_system = 0; |
1085 | ||
7db35a48 | 1086 | /* Handle the -t switch, which specifies filename to use as terminal. */ |
956e3c7e RS |
1087 | while (1) |
1088 | { | |
1089 | char *term; | |
1090 | if (argmatch (argv, argc, "-t", "--terminal", 4, &term, &skip_args)) | |
1091 | { | |
1092 | int result; | |
68c45bf0 PE |
1093 | emacs_close (0); |
1094 | emacs_close (1); | |
1095 | result = emacs_open (term, O_RDWR, 0); | |
956e3c7e RS |
1096 | if (result < 0) |
1097 | { | |
1098 | char *errstring = strerror (errno); | |
186486eb | 1099 | fprintf (stderr, "%s: %s: %s\n", argv[0], term, errstring); |
956e3c7e RS |
1100 | exit (1); |
1101 | } | |
1102 | dup (0); | |
1103 | if (! isatty (0)) | |
1104 | { | |
186486eb | 1105 | fprintf (stderr, "%s: %s: not a tty\n", argv[0], term); |
956e3c7e RS |
1106 | exit (1); |
1107 | } | |
1108 | fprintf (stderr, "Using %s\n", term); | |
8ba50e1a | 1109 | #ifdef HAVE_WINDOW_SYSTEM |
956e3c7e | 1110 | inhibit_window_system = 1; /* -t => -nw */ |
f927c5ae | 1111 | #endif |
956e3c7e RS |
1112 | } |
1113 | else | |
1114 | break; | |
1115 | } | |
1116 | ||
400d6fa9 PJ |
1117 | /* Command line option --no-windows is deprecated and thus not mentioned |
1118 | in the manual and usage informations. */ | |
1119 | if (argmatch (argv, argc, "-nw", "--no-window-system", 6, NULL, &skip_args) | |
1120 | || argmatch (argv, argc, "-nw", "--no-windows", 6, NULL, &skip_args)) | |
e2925360 | 1121 | inhibit_window_system = 1; |
f927c5ae | 1122 | |
e2925360 | 1123 | /* Handle the -batch switch, which means don't do interactive display. */ |
f927c5ae | 1124 | noninteractive = 0; |
df6530f8 | 1125 | if (argmatch (argv, argc, "-batch", "--batch", 5, NULL, &skip_args)) |
55f4edbc RS |
1126 | { |
1127 | noninteractive = 1; | |
1128 | Vundo_outer_limit = Qnil; | |
1129 | } | |
6e910e07 RS |
1130 | if (argmatch (argv, argc, "-script", "--script", 3, &junk, &skip_args)) |
1131 | { | |
1132 | noninteractive = 1; /* Set batch mode. */ | |
21a4ff8e | 1133 | /* Convert --script to -scriptload, un-skip it, and sort again |
e09b9180 | 1134 | so that it will be handled in proper sequence. */ |
a09a5b5b | 1135 | /* FIXME broken for --script=FILE - is that supposed to work? */ |
21a4ff8e | 1136 | argv[skip_args - 1] = "-scriptload"; |
6e910e07 RS |
1137 | skip_args -= 2; |
1138 | sort_args (argc, argv); | |
1139 | } | |
e2925360 | 1140 | |
7db35a48 | 1141 | /* Handle the --help option, which gives a usage message. */ |
df6530f8 | 1142 | if (argmatch (argv, argc, "-help", "--help", 3, NULL, &skip_args)) |
f927c5ae | 1143 | { |
6b61353c KH |
1144 | printf (USAGE1, argv[0], USAGE2); |
1145 | printf (USAGE3); | |
1146 | printf (USAGE4, bug_reporting_address ()); | |
e2925360 | 1147 | exit (0); |
f927c5ae JB |
1148 | } |
1149 | ||
edb85f59 RS |
1150 | if (! noninteractive) |
1151 | { | |
1152 | #ifdef BSD_PGRPS | |
1153 | if (initialized) | |
1154 | { | |
1155 | inherited_pgroup = EMACS_GETPGRP (0); | |
1156 | setpgrp (0, getpid ()); | |
1157 | } | |
1158 | #else | |
1159 | #if defined (USG5) && defined (INTERRUPT_INPUT) | |
1160 | setpgrp (); | |
1161 | #endif | |
5467331d YM |
1162 | #endif |
1163 | #if defined (HAVE_GTK_AND_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC) | |
1164 | { | |
1165 | extern void malloc_enable_thread P_ ((void)); | |
1166 | ||
1167 | malloc_enable_thread (); | |
1168 | } | |
edb85f59 RS |
1169 | #endif |
1170 | } | |
1171 | ||
fb8e9847 | 1172 | init_signals (); |
fb8e9847 | 1173 | |
1efa2983 KH |
1174 | /* Don't catch SIGHUP if dumping. */ |
1175 | if (1 | |
1176 | #ifndef CANNOT_DUMP | |
1177 | && initialized | |
1178 | #endif | |
1179 | ) | |
1180 | { | |
57e3d22a | 1181 | sigblock (sigmask (SIGHUP)); |
1efa2983 KH |
1182 | /* In --batch mode, don't catch SIGHUP if already ignored. |
1183 | That makes nohup work. */ | |
1184 | if (! noninteractive | |
1185 | || signal (SIGHUP, SIG_IGN) != SIG_IGN) | |
1186 | signal (SIGHUP, fatal_error_signal); | |
57e3d22a | 1187 | sigunblock (sigmask (SIGHUP)); |
1efa2983 KH |
1188 | } |
1189 | ||
f927c5ae JB |
1190 | if ( |
1191 | #ifndef CANNOT_DUMP | |
1192 | ! noninteractive || initialized | |
1193 | #else | |
1194 | 1 | |
1195 | #endif | |
1196 | ) | |
1197 | { | |
1efa2983 | 1198 | /* Don't catch these signals in batch mode if dumping. |
f927c5ae JB |
1199 | On some machines, this sets static data that would make |
1200 | signal fail to work right when the dumped Emacs is run. */ | |
f927c5ae JB |
1201 | signal (SIGQUIT, fatal_error_signal); |
1202 | signal (SIGILL, fatal_error_signal); | |
1203 | signal (SIGTRAP, fatal_error_signal); | |
7317d9e8 | 1204 | #ifdef SIGUSR1 |
71b28d05 | 1205 | add_user_signal (SIGUSR1, "sigusr1"); |
7317d9e8 | 1206 | #endif |
8247c60d | 1207 | #ifdef SIGUSR2 |
71b28d05 | 1208 | add_user_signal (SIGUSR2, "sigusr2"); |
7317d9e8 | 1209 | #endif |
99e372cd RS |
1210 | #ifdef SIGABRT |
1211 | signal (SIGABRT, fatal_error_signal); | |
1212 | #endif | |
1213 | #ifdef SIGHWE | |
1214 | signal (SIGHWE, fatal_error_signal); | |
1215 | #endif | |
1216 | #ifdef SIGPRE | |
1217 | signal (SIGPRE, fatal_error_signal); | |
1218 | #endif | |
1219 | #ifdef SIGORE | |
1220 | signal (SIGORE, fatal_error_signal); | |
1221 | #endif | |
1222 | #ifdef SIGUME | |
1223 | signal (SIGUME, fatal_error_signal); | |
1224 | #endif | |
1225 | #ifdef SIGDLK | |
1226 | signal (SIGDLK, fatal_error_signal); | |
1227 | #endif | |
1228 | #ifdef SIGCPULIM | |
1229 | signal (SIGCPULIM, fatal_error_signal); | |
1230 | #endif | |
a90538cb JB |
1231 | #ifdef SIGIOT |
1232 | /* This is missing on some systems - OS/2, for example. */ | |
f927c5ae | 1233 | signal (SIGIOT, fatal_error_signal); |
a90538cb | 1234 | #endif |
f927c5ae JB |
1235 | #ifdef SIGEMT |
1236 | signal (SIGEMT, fatal_error_signal); | |
1237 | #endif | |
1238 | signal (SIGFPE, fatal_error_signal); | |
00eaaa32 | 1239 | #ifdef SIGBUS |
f927c5ae | 1240 | signal (SIGBUS, fatal_error_signal); |
00eaaa32 | 1241 | #endif |
f927c5ae | 1242 | signal (SIGSEGV, fatal_error_signal); |
00eaaa32 | 1243 | #ifdef SIGSYS |
f927c5ae | 1244 | signal (SIGSYS, fatal_error_signal); |
00eaaa32 | 1245 | #endif |
f927c5ae JB |
1246 | signal (SIGTERM, fatal_error_signal); |
1247 | #ifdef SIGXCPU | |
1248 | signal (SIGXCPU, fatal_error_signal); | |
1249 | #endif | |
1250 | #ifdef SIGXFSZ | |
1251 | signal (SIGXFSZ, fatal_error_signal); | |
1252 | #endif /* SIGXFSZ */ | |
1253 | ||
271c7b7c RS |
1254 | #ifdef SIGDANGER |
1255 | /* This just means available memory is getting low. */ | |
1256 | signal (SIGDANGER, memory_warning_signal); | |
1257 | #endif | |
1258 | ||
f927c5ae | 1259 | #ifdef AIX |
56e034fa RS |
1260 | /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */ |
1261 | signal (SIGXCPU, fatal_error_signal); | |
0aef8561 | 1262 | #ifndef _I386 |
f927c5ae | 1263 | signal (SIGIOINT, fatal_error_signal); |
0aef8561 | 1264 | #endif |
f927c5ae JB |
1265 | signal (SIGGRANT, fatal_error_signal); |
1266 | signal (SIGRETRACT, fatal_error_signal); | |
1267 | signal (SIGSOUND, fatal_error_signal); | |
1268 | signal (SIGMSG, fatal_error_signal); | |
1269 | #endif /* AIX */ | |
1270 | } | |
1271 | ||
1272 | noninteractive1 = noninteractive; | |
1273 | ||
7db35a48 | 1274 | /* Perform basic initializations (not merely interning symbols). */ |
f927c5ae JB |
1275 | |
1276 | if (!initialized) | |
1277 | { | |
1278 | init_alloc_once (); | |
1279 | init_obarray (); | |
1280 | init_eval_once (); | |
e37d7195 | 1281 | init_character_once (); |
270ce821 KH |
1282 | init_charset_once (); |
1283 | init_coding_once (); | |
f927c5ae | 1284 | init_syntax_once (); /* Create standard syntax table. */ |
270ce821 | 1285 | init_category_once (); /* Create standard category table. */ |
7db35a48 | 1286 | /* Must be done before init_buffer. */ |
f927c5ae | 1287 | init_casetab_once (); |
7db35a48 PJ |
1288 | init_buffer_once (); /* Create buffer table and some buffers. */ |
1289 | init_minibuf_once (); /* Create list of minibuffers. */ | |
1290 | /* Must precede init_window_once. */ | |
1291 | ||
90d920b6 GM |
1292 | /* Call syms_of_xfaces before init_window_once because that |
1293 | function creates Vterminal_frame. Termcap frames now use | |
1294 | faces, and the face implementation uses some symbols as | |
1295 | face names. */ | |
90d920b6 | 1296 | syms_of_xfaces (); |
4ea81208 KL |
1297 | /* XXX syms_of_keyboard uses some symbols in keymap.c. It would |
1298 | be better to arrange things not to have this dependency. */ | |
1299 | syms_of_keymap (); | |
7a18af49 KR |
1300 | /* Call syms_of_keyboard before init_window_once because |
1301 | keyboard sets up symbols that include some face names that | |
1302 | the X support will want to use. This can happen when | |
1303 | CANNOT_DUMP is defined. */ | |
1304 | syms_of_keyboard (); | |
90d920b6 | 1305 | |
e0f712ba | 1306 | #ifdef MAC_OS8 |
c1e279c2 AC |
1307 | /* init_window_once calls make_terminal_frame which on Mac OS |
1308 | creates a full-fledge output_mac type frame. This does not | |
1309 | work correctly before syms_of_textprop, syms_of_macfns, | |
1310 | syms_of_ccl, syms_of_fontset, syms_of_xterm, syms_of_search, | |
b15325b2 | 1311 | syms_of_frame, mac_term_init, and init_keyboard have already |
c1e279c2 | 1312 | been called. */ |
1a578e9b AC |
1313 | syms_of_textprop (); |
1314 | syms_of_macfns (); | |
1315 | syms_of_ccl (); | |
1316 | syms_of_fontset (); | |
1317 | syms_of_macterm (); | |
1318 | syms_of_macmenu (); | |
ab271aca | 1319 | syms_of_macselect (); |
1a578e9b | 1320 | syms_of_search (); |
c1e279c2 | 1321 | syms_of_frame (); |
7db35a48 | 1322 | |
34e1bbc2 | 1323 | init_atimer (); |
b15325b2 | 1324 | mac_term_init (build_string ("Mac"), NULL, NULL); |
1a578e9b AC |
1325 | init_keyboard (); |
1326 | #endif | |
985773c9 MB |
1327 | /* Called before syms_of_fileio, because it sets up Qerror_condition. */ |
1328 | syms_of_data (); | |
1329 | syms_of_fileio (); | |
1330 | /* Before syms_of_coding to initialize Vgc_cons_threshold. */ | |
1331 | syms_of_alloc (); | |
1332 | /* Before syms_of_coding because it initializes Qcharsetp. */ | |
1333 | syms_of_charset (); | |
1334 | /* Before init_window_once, because it sets up the | |
1335 | Vcoding_system_hash_table. */ | |
1336 | syms_of_coding (); /* This should be after syms_of_fileio. */ | |
1a578e9b | 1337 | |
7db35a48 | 1338 | init_window_once (); /* Init the window system. */ |
680256a8 | 1339 | init_fileio_once (); /* Must precede any path manipulation. */ |
6b61353c KH |
1340 | #ifdef HAVE_WINDOW_SYSTEM |
1341 | init_fringe_once (); /* Swap bitmaps if necessary. */ | |
1342 | #endif /* HAVE_WINDOW_SYSTEM */ | |
f927c5ae JB |
1343 | } |
1344 | ||
1345 | init_alloc (); | |
68c45bf0 PE |
1346 | |
1347 | if (do_initial_setlocale) | |
1348 | { | |
1349 | fixup_locale (); | |
ca9c0567 PE |
1350 | Vsystem_messages_locale = Vprevious_system_messages_locale; |
1351 | Vsystem_time_locale = Vprevious_system_time_locale; | |
68c45bf0 PE |
1352 | } |
1353 | ||
f927c5ae JB |
1354 | init_eval (); |
1355 | init_data (); | |
ad067ea6 | 1356 | #ifdef CLASH_DETECTION |
01f67d2c | 1357 | init_filelock (); |
ad067ea6 | 1358 | #endif |
ab5d0358 | 1359 | init_atimer (); |
7074fde6 | 1360 | running_asynch_code = 0; |
0e956009 | 1361 | |
a08a816a RS |
1362 | /* Handle --unibyte and the EMACS_UNIBYTE envvar, |
1363 | but not while dumping. */ | |
e721aa94 | 1364 | if (1) |
a08a816a RS |
1365 | { |
1366 | int inhibit_unibyte = 0; | |
1367 | ||
1368 | /* --multibyte overrides EMACS_UNIBYTE. */ | |
1369 | if (argmatch (argv, argc, "-no-unibyte", "--no-unibyte", 4, NULL, &skip_args) | |
e721aa94 SM |
1370 | || argmatch (argv, argc, "-multibyte", "--multibyte", 4, NULL, &skip_args) |
1371 | /* Ignore EMACS_UNIBYTE before dumping. */ | |
1372 | || (!initialized && noninteractive)) | |
a08a816a RS |
1373 | inhibit_unibyte = 1; |
1374 | ||
1375 | /* --unibyte requests that we set up to do everything with single-byte | |
1376 | buffers and strings. We need to handle this before calling | |
1377 | init_lread, init_editfns and other places that generate Lisp strings | |
1378 | from text in the environment. */ | |
c0218e1b DL |
1379 | /* Actually this shouldn't be needed as of 20.4 in a generally |
1380 | unibyte environment. As handa says, environment values | |
1381 | aren't now decoded; also existing buffers are now made | |
1382 | unibyte during startup if .emacs sets unibyte. Tested with | |
1383 | 8-bit data in environment variables and /etc/passwd, setting | |
7db35a48 | 1384 | unibyte and Latin-1 in .emacs. -- Dave Love */ |
a08a816a RS |
1385 | if (argmatch (argv, argc, "-unibyte", "--unibyte", 4, NULL, &skip_args) |
1386 | || argmatch (argv, argc, "-no-multibyte", "--no-multibyte", 4, NULL, &skip_args) | |
1387 | || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte)) | |
1388 | { | |
1389 | Lisp_Object old_log_max; | |
1390 | Lisp_Object symbol, tail; | |
1391 | ||
1392 | symbol = intern ("default-enable-multibyte-characters"); | |
1393 | Fset (symbol, Qnil); | |
1394 | ||
6524291c KH |
1395 | if (initialized) |
1396 | { | |
1397 | /* Erase pre-dump messages in *Messages* now so no abort. */ | |
1398 | old_log_max = Vmessage_log_max; | |
1399 | XSETFASTINT (Vmessage_log_max, 0); | |
1400 | message_dolog ("", 0, 1, 0); | |
1401 | Vmessage_log_max = old_log_max; | |
1402 | } | |
a08a816a | 1403 | |
3e75bb9e | 1404 | for (tail = Vbuffer_alist; CONSP (tail); |
7539e11f | 1405 | tail = XCDR (tail)) |
a08a816a RS |
1406 | { |
1407 | Lisp_Object buffer; | |
1408 | ||
7539e11f | 1409 | buffer = Fcdr (XCAR (tail)); |
8f924df7 | 1410 | /* Make a multibyte buffer unibyte. */ |
f2b89e21 KH |
1411 | if (BUF_Z_BYTE (XBUFFER (buffer)) > BUF_Z (XBUFFER (buffer))) |
1412 | { | |
1413 | struct buffer *current = current_buffer; | |
1414 | ||
1415 | set_buffer_temp (XBUFFER (buffer)); | |
8f924df7 | 1416 | Fset_buffer_multibyte (Qnil); |
f2b89e21 KH |
1417 | set_buffer_temp (current); |
1418 | } | |
a08a816a RS |
1419 | } |
1420 | } | |
1421 | } | |
1422 | ||
956e3c7e | 1423 | no_loadup |
b96f9fb7 | 1424 | = argmatch (argv, argc, "-nl", "--no-loadup", 6, NULL, &skip_args); |
956e3c7e | 1425 | |
956e3c7e RS |
1426 | #ifdef HAVE_X_WINDOWS |
1427 | /* Stupid kludge to catch command-line display spec. We can't | |
1428 | handle this argument entirely in window system dependent code | |
1429 | because we don't even know which window system dependent code | |
1430 | to run until we've recognized this argument. */ | |
1431 | { | |
1432 | char *displayname = 0; | |
956e3c7e RS |
1433 | int count_before = skip_args; |
1434 | ||
1435 | /* Skip any number of -d options, but only use the last one. */ | |
1436 | while (1) | |
1437 | { | |
1438 | int count_before_this = skip_args; | |
1439 | ||
1440 | if (argmatch (argv, argc, "-d", "--display", 3, &displayname, &skip_args)) | |
1441 | display_arg = 1; | |
1442 | else if (argmatch (argv, argc, "-display", 0, 3, &displayname, &skip_args)) | |
1443 | display_arg = 1; | |
1444 | else | |
1445 | break; | |
1446 | ||
1447 | count_before = count_before_this; | |
1448 | } | |
1449 | ||
1450 | /* If we have the form --display=NAME, | |
1451 | convert it into -d name. | |
1452 | This requires inserting a new element into argv. */ | |
1453 | if (displayname != 0 && skip_args - count_before == 1) | |
1454 | { | |
1455 | char **new = (char **) xmalloc (sizeof (char *) * (argc + 2)); | |
1456 | int j; | |
1457 | ||
1458 | for (j = 0; j < count_before + 1; j++) | |
1459 | new[j] = argv[j]; | |
1460 | new[count_before + 1] = "-d"; | |
1461 | new[count_before + 2] = displayname; | |
1462 | for (j = count_before + 2; j <argc; j++) | |
1463 | new[j + 1] = argv[j]; | |
1464 | argv = new; | |
1465 | argc++; | |
1466 | } | |
1467 | /* Change --display to -d, when its arg is separate. */ | |
1468 | else if (displayname != 0 && skip_args > count_before | |
1469 | && argv[count_before + 1][1] == '-') | |
1470 | argv[count_before + 1] = "-d"; | |
1471 | ||
1472 | /* Don't actually discard this arg. */ | |
1473 | skip_args = count_before; | |
1474 | } | |
1475 | #endif | |
1476 | ||
1477 | /* argmatch must not be used after here, | |
1478 | except when bulding temacs | |
1479 | because the -d argument has not been skipped in skip_args. */ | |
1480 | ||
29b89fe0 RS |
1481 | #ifdef MSDOS |
1482 | /* Call early 'cause init_environment needs it. */ | |
1483 | init_dosfns (); | |
1484 | /* Set defaults for several environment variables. */ | |
18198bb2 RS |
1485 | if (initialized) |
1486 | init_environment (argc, argv, skip_args); | |
1487 | else | |
d1fc6752 | 1488 | tzset (); |
18198bb2 | 1489 | #endif /* MSDOS */ |
29b89fe0 | 1490 | |
8ba50e1a | 1491 | #ifdef WINDOWSNT |
9785d95b | 1492 | globals_of_w32 (); |
8ba50e1a | 1493 | /* Initialize environment from registry settings. */ |
a3a58294 | 1494 | init_environment (argv); |
7db35a48 | 1495 | init_ntproc (); /* must precede init_editfns. */ |
8ba50e1a GV |
1496 | #endif |
1497 | ||
3ec33130 | 1498 | #if defined (MAC_OSX) && defined (HAVE_CARBON) |
1000788b AC |
1499 | if (initialized) |
1500 | init_mac_osx_environment (); | |
1501 | #endif | |
1502 | ||
0e956009 JB |
1503 | /* egetenv is a pretty low-level facility, which may get called in |
1504 | many circumstances; it seems flimsy to put off initializing it | |
1505 | until calling init_callproc. */ | |
a13f8f50 | 1506 | set_initial_environment (); |
93aed04d | 1507 | /* AIX crashes are reported in system versions 3.2.3 and 3.2.4 |
5990851d KL |
1508 | if this is not done. Do it after set_global_environment so that we |
1509 | don't pollute Vglobal_environment. */ | |
fa09a82d DL |
1510 | /* Setting LANG here will defeat the startup locale processing... */ |
1511 | #ifdef AIX3_2 | |
93aed04d RS |
1512 | putenv ("LANG=C"); |
1513 | #endif | |
0e956009 | 1514 | |
7db35a48 | 1515 | init_buffer (); /* Init default directory of main buffer. */ |
ace40a69 | 1516 | |
7928f0b5 | 1517 | init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */ |
ace40a69 | 1518 | init_cmdargs (argc, argv, skip_args); /* Must precede init_lread. */ |
380e25b8 RS |
1519 | |
1520 | if (initialized) | |
1521 | { | |
7db35a48 | 1522 | /* Erase any pre-dump messages in the message log, to avoid confusion. */ |
380e25b8 RS |
1523 | Lisp_Object old_log_max; |
1524 | old_log_max = Vmessage_log_max; | |
1525 | XSETFASTINT (Vmessage_log_max, 0); | |
f6fe7bb5 | 1526 | message_dolog ("", 0, 1, 0); |
380e25b8 RS |
1527 | Vmessage_log_max = old_log_max; |
1528 | } | |
1529 | ||
7928f0b5 | 1530 | init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */ |
fb8e9847 | 1531 | init_lread (); |
f927c5ae | 1532 | |
8bb697c0 RS |
1533 | /* Intern the names of all standard functions and variables; |
1534 | define standard keys. */ | |
f927c5ae JB |
1535 | |
1536 | if (!initialized) | |
1537 | { | |
7db35a48 | 1538 | /* The basic levels of Lisp must come first. */ |
f927c5ae | 1539 | /* And data must come first of all |
7db35a48 | 1540 | for the sake of symbols like error-message. */ |
e0f712ba | 1541 | /* Called before init_window_once for Mac OS Classic. */ |
f927c5ae | 1542 | syms_of_data (); |
e37d7195 | 1543 | syms_of_chartab (); |
fb8e9847 | 1544 | syms_of_lread (); |
f927c5ae JB |
1545 | syms_of_print (); |
1546 | syms_of_eval (); | |
1547 | syms_of_fns (); | |
f927c5ae | 1548 | syms_of_floatfns (); |
f927c5ae | 1549 | |
f927c5ae JB |
1550 | syms_of_buffer (); |
1551 | syms_of_bytecode (); | |
1552 | syms_of_callint (); | |
1553 | syms_of_casefiddle (); | |
1554 | syms_of_casetab (); | |
1555 | syms_of_callproc (); | |
270ce821 KH |
1556 | syms_of_category (); |
1557 | syms_of_ccl (); | |
e37d7195 | 1558 | syms_of_character (); |
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 (); | |
f927c5ae JB |
1567 | #ifdef CLASH_DETECTION |
1568 | syms_of_filelock (); | |
1569 | #endif /* CLASH_DETECTION */ | |
1570 | syms_of_indent (); | |
c2c5ed2c | 1571 | syms_of_insdel (); |
4ea81208 | 1572 | /* syms_of_keymap (); */ |
f927c5ae JB |
1573 | syms_of_macros (); |
1574 | syms_of_marker (); | |
1575 | syms_of_minibuf (); | |
f927c5ae | 1576 | syms_of_process (); |
f927c5ae | 1577 | syms_of_search (); |
1cbd5d9d | 1578 | syms_of_frame (); |
f927c5ae | 1579 | syms_of_syntax (); |
ed8dad6b | 1580 | syms_of_terminal (); |
0d934e7b | 1581 | syms_of_term (); |
f927c5ae | 1582 | syms_of_undo (); |
90d920b6 GM |
1583 | #ifdef HAVE_SOUND |
1584 | syms_of_sound (); | |
1585 | #endif | |
bef79ee4 | 1586 | syms_of_textprop (); |
9d100795 | 1587 | syms_of_composite (); |
f927c5ae JB |
1588 | #ifdef VMS |
1589 | syms_of_vmsproc (); | |
1590 | #endif /* VMS */ | |
05687c54 RS |
1591 | #ifdef WINDOWSNT |
1592 | syms_of_ntproc (); | |
1593 | #endif /* WINDOWSNT */ | |
f927c5ae JB |
1594 | syms_of_window (); |
1595 | syms_of_xdisp (); | |
6b61353c | 1596 | #ifdef HAVE_WINDOW_SYSTEM |
d53f587b | 1597 | syms_of_font (); |
6b61353c KH |
1598 | syms_of_fringe (); |
1599 | syms_of_image (); | |
1600 | #endif /* HAVE_WINDOW_SYSTEM */ | |
f927c5ae | 1601 | #ifdef HAVE_X_WINDOWS |
72412588 | 1602 | syms_of_xterm (); |
f927c5ae | 1603 | syms_of_xfns (); |
270ce821 | 1604 | syms_of_fontset (); |
28b1b672 JD |
1605 | #ifdef HAVE_X_SM |
1606 | syms_of_xsmfns (); | |
1607 | #endif | |
72412588 JB |
1608 | #ifdef HAVE_X11 |
1609 | syms_of_xselect (); | |
1610 | #endif | |
f927c5ae JB |
1611 | #endif /* HAVE_X_WINDOWS */ |
1612 | ||
1e9c210b | 1613 | #ifndef HAVE_NTGUI |
e0f712ba AC |
1614 | #ifndef MAC_OS |
1615 | /* Called before init_window_once for Mac OS Classic. */ | |
6c850f3c | 1616 | syms_of_xmenu (); |
1e9c210b | 1617 | #endif |
1a578e9b | 1618 | #endif |
6c850f3c | 1619 | |
8ba50e1a | 1620 | #ifdef HAVE_NTGUI |
fbd6baed GV |
1621 | syms_of_w32term (); |
1622 | syms_of_w32fns (); | |
fbd6baed GV |
1623 | syms_of_w32select (); |
1624 | syms_of_w32menu (); | |
02062ac3 | 1625 | syms_of_fontset (); |
8ba50e1a GV |
1626 | #endif /* HAVE_NTGUI */ |
1627 | ||
3ec33130 | 1628 | #if defined (MAC_OSX) && defined (HAVE_CARBON) |
e0f712ba AC |
1629 | syms_of_macterm (); |
1630 | syms_of_macfns (); | |
1631 | syms_of_macmenu (); | |
ab271aca | 1632 | syms_of_macselect (); |
e0f712ba | 1633 | syms_of_fontset (); |
3ec33130 | 1634 | #endif /* MAC_OSX && HAVE_CARBON */ |
e0f712ba | 1635 | |
033b73e2 MA |
1636 | #ifdef HAVE_DBUS |
1637 | syms_of_dbusbind (); | |
1638 | #endif /* HAVE_DBUS */ | |
1639 | ||
f927c5ae JB |
1640 | #ifdef SYMS_SYSTEM |
1641 | SYMS_SYSTEM; | |
1642 | #endif | |
1643 | ||
1644 | #ifdef SYMS_MACHINE | |
1645 | SYMS_MACHINE; | |
1646 | #endif | |
1647 | ||
1648 | keys_of_casefiddle (); | |
1649 | keys_of_cmds (); | |
1650 | keys_of_buffer (); | |
1651 | keys_of_keyboard (); | |
1652 | keys_of_keymap (); | |
f927c5ae JB |
1653 | keys_of_minibuf (); |
1654 | keys_of_window (); | |
9785d95b | 1655 | } |
3b6536b1 | 1656 | else |
9785d95b | 1657 | { |
3b6536b1 AS |
1658 | /* Initialization that must be done even if the global variable |
1659 | initialized is non zero. */ | |
9785d95b BK |
1660 | #ifdef HAVE_NTGUI |
1661 | globals_of_w32fns (); | |
1662 | globals_of_w32menu (); | |
52c7f9ee | 1663 | globals_of_w32select (); |
3b6536b1 | 1664 | #endif /* HAVE_NTGUI */ |
f927c5ae JB |
1665 | } |
1666 | ||
cf411e8d KH |
1667 | init_charset (); |
1668 | ||
f7cf8b20 | 1669 | init_editfns (); /* init_process uses Voperating_system_release. */ |
2491d293 | 1670 | init_process (); /* init_display uses add_keyboard_wait_descriptor. */ |
7db35a48 | 1671 | init_keyboard (); /* This too must precede init_sys_modes. */ |
8bb697c0 | 1672 | #ifdef VMS |
7db35a48 | 1673 | init_vmsproc (); /* And this too. */ |
8bb697c0 | 1674 | #endif /* VMS */ |
0a125897 KL |
1675 | if (!noninteractive) |
1676 | { | |
1677 | #ifdef VMS | |
1678 | init_vms_input ();/* init_display calls get_tty_size, that needs this. */ | |
1679 | #endif /* VMS */ | |
1680 | init_display (); /* Determine terminal type. Calls init_sys_modes. */ | |
1681 | } | |
90d920b6 | 1682 | init_fns (); |
8bb697c0 | 1683 | init_xdisp (); |
6b61353c KH |
1684 | #ifdef HAVE_WINDOW_SYSTEM |
1685 | init_fringe (); | |
1686 | init_image (); | |
1687 | #endif /* HAVE_WINDOW_SYSTEM */ | |
8bb697c0 | 1688 | init_macros (); |
8bb697c0 | 1689 | init_floatfns (); |
8bb697c0 RS |
1690 | #ifdef VMS |
1691 | init_vmsfns (); | |
1692 | #endif /* VMS */ | |
90d920b6 GM |
1693 | #ifdef HAVE_SOUND |
1694 | init_sound (); | |
1695 | #endif | |
75816372 | 1696 | init_window (); |
8bb697c0 | 1697 | |
f927c5ae JB |
1698 | if (!initialized) |
1699 | { | |
e2925360 | 1700 | char *file; |
7db35a48 | 1701 | /* Handle -l loadup, args passed by Makefile. */ |
df6530f8 | 1702 | if (argmatch (argv, argc, "-l", "--load", 3, &file, &skip_args)) |
f927c5ae | 1703 | Vtop_level = Fcons (intern ("load"), |
e2925360 | 1704 | Fcons (build_string (file), Qnil)); |
f927c5ae | 1705 | /* Unless next switch is -nl, load "loadup.el" first thing. */ |
956e3c7e | 1706 | if (! no_loadup) |
f927c5ae JB |
1707 | Vtop_level = Fcons (intern ("load"), |
1708 | Fcons (build_string ("loadup.el"), Qnil)); | |
f927c5ae JB |
1709 | } |
1710 | ||
93572b43 KH |
1711 | if (initialized) |
1712 | { | |
0269dedb RS |
1713 | #ifdef HAVE_TZSET |
1714 | { | |
1715 | /* If the execution TZ happens to be the same as the dump TZ, | |
1716 | change it to some other value and then change it back, | |
1717 | to force the underlying implementation to reload the TZ info. | |
1718 | This is needed on implementations that load TZ info from files, | |
1719 | since the TZ file contents may differ between dump and execution. */ | |
1720 | char *tz = getenv ("TZ"); | |
1721 | if (tz && !strcmp (tz, dump_tz)) | |
1722 | { | |
1723 | ++*tz; | |
1724 | tzset (); | |
1725 | --*tz; | |
1726 | } | |
1727 | } | |
1728 | #endif | |
93572b43 KH |
1729 | } |
1730 | ||
ecf783fa EZ |
1731 | /* Set up for profiling. This is known to work on FreeBSD, |
1732 | GNU/Linux and MinGW. It might work on some other systems too. | |
1733 | Give it a try and tell us if it works on your system. To compile | |
5a693cc0 EZ |
1734 | for profiling, add -pg to the switches your platform uses in |
1735 | CFLAGS and LDFLAGS. For example: | |
665b5955 | 1736 | `make CFLAGS="-pg -g -O -DPROFILING=1" LDFLAGS="-pg -g"'. */ |
ecf783fa | 1737 | #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__) |
e610ea43 RS |
1738 | #ifdef PROFILING |
1739 | if (initialized) | |
1740 | { | |
7db35a48 | 1741 | extern void _mcleanup (); |
ecf783fa EZ |
1742 | #ifdef __MINGW32__ |
1743 | extern unsigned char etext asm ("etext"); | |
1744 | #else | |
e610ea43 | 1745 | extern char etext; |
ecf783fa | 1746 | #endif |
90d920b6 | 1747 | extern void safe_bcopy (); |
67a5596f GM |
1748 | extern void dump_opcode_frequencies (); |
1749 | ||
e610ea43 | 1750 | atexit (_mcleanup); |
90d920b6 GM |
1751 | /* This uses safe_bcopy because that function comes first in the |
1752 | Emacs executable. It might be better to use something that | |
1753 | gives the start of the text segment, but start_of_text is not | |
1754 | defined on all systems now. */ | |
1755 | monstartup (safe_bcopy, &etext); | |
e610ea43 RS |
1756 | } |
1757 | else | |
1758 | moncontrol (0); | |
1759 | #endif | |
1760 | #endif | |
1761 | ||
f927c5ae JB |
1762 | initialized = 1; |
1763 | ||
e7536cff RS |
1764 | #ifdef LOCALTIME_CACHE |
1765 | /* Some versions of localtime have a bug. They cache the value of the time | |
279cc2b8 JB |
1766 | zone rather than looking it up every time. Since localtime() is |
1767 | called to bolt the undumping time into the undumped emacs, this | |
afe9fae9 | 1768 | results in localtime ignoring the TZ environment variable. |
7db35a48 | 1769 | This flushes the new TZ value into localtime. */ |
afe9fae9 | 1770 | tzset (); |
e7536cff | 1771 | #endif /* defined (LOCALTIME_CACHE) */ |
279cc2b8 | 1772 | |
f927c5ae JB |
1773 | /* Enter editor command loop. This never returns. */ |
1774 | Frecursive_edit (); | |
1775 | /* NOTREACHED */ | |
6bbd7a29 | 1776 | return 0; |
f927c5ae JB |
1777 | } |
1778 | \f | |
081bef73 RS |
1779 | /* Sort the args so we can find the most important ones |
1780 | at the beginning of argv. */ | |
1781 | ||
1782 | /* First, here's a table of all the standard options. */ | |
1783 | ||
1784 | struct standard_args | |
1785 | { | |
1786 | char *name; | |
1787 | char *longname; | |
1788 | int priority; | |
1789 | int nargs; | |
1790 | }; | |
1791 | ||
1792 | struct standard_args standard_args[] = | |
1793 | { | |
05922407 RS |
1794 | { "-version", "--version", 150, 0 }, |
1795 | #ifdef HAVE_SHM | |
1796 | { "-nl", "--no-shared-memory", 140, 0 }, | |
1797 | #endif | |
2725719a | 1798 | #ifdef VMS |
05922407 | 1799 | { "-map", "--map-data", 130, 0 }, |
2725719a | 1800 | #endif |
05922407 | 1801 | { "-t", "--terminal", 120, 1 }, |
400d6fa9 | 1802 | { "-nw", "--no-window-system", 110, 0 }, |
05922407 RS |
1803 | { "-nw", "--no-windows", 110, 0 }, |
1804 | { "-batch", "--batch", 100, 0 }, | |
6e910e07 | 1805 | { "-script", "--script", 100, 1 }, |
05922407 | 1806 | { "-help", "--help", 90, 0 }, |
956e3c7e RS |
1807 | { "-no-unibyte", "--no-unibyte", 83, 0 }, |
1808 | { "-multibyte", "--multibyte", 82, 0 }, | |
1809 | { "-unibyte", "--unibyte", 81, 0 }, | |
1810 | { "-no-multibyte", "--no-multibyte", 80, 0 }, | |
956e3c7e | 1811 | { "-nl", "--no-loadup", 70, 0 }, |
c027ffdd | 1812 | { "-disable-font-backend", "--disable-font-backend", 65, 0 }, |
956e3c7e RS |
1813 | /* -d must come last before the options handled in startup.el. */ |
1814 | { "-d", "--display", 60, 1 }, | |
1815 | { "-display", 0, 60, 1 }, | |
05922407 | 1816 | /* Now for the options handled in startup.el. */ |
a1716a57 RS |
1817 | { "-Q", "--quick", 55, 0 }, |
1818 | { "-quick", 0, 55, 0 }, | |
081bef73 RS |
1819 | { "-q", "--no-init-file", 50, 0 }, |
1820 | { "-no-init-file", 0, 50, 0 }, | |
1821 | { "-no-site-file", "--no-site-file", 40, 0 }, | |
1822 | { "-u", "--user", 30, 1 }, | |
1823 | { "-user", 0, 30, 1 }, | |
1824 | { "-debug-init", "--debug-init", 20, 0 }, | |
f9e36a6d | 1825 | { "-nbi", "--no-bitmap-icon", 15, 0 }, |
f2bc3538 | 1826 | { "-iconic", "--iconic", 15, 0 }, |
a1716a57 | 1827 | { "-D", "--basic-display", 12, 0}, |
e09b9180 | 1828 | { "-basic-display", 0, 12, 0}, |
081bef73 RS |
1829 | { "-bg", "--background-color", 10, 1 }, |
1830 | { "-background", 0, 10, 1 }, | |
1831 | { "-fg", "--foreground-color", 10, 1 }, | |
1832 | { "-foreground", 0, 10, 1 }, | |
1833 | { "-bd", "--border-color", 10, 1 }, | |
1834 | { "-bw", "--border-width", 10, 1 }, | |
1835 | { "-ib", "--internal-border", 10, 1 }, | |
1836 | { "-ms", "--mouse-color", 10, 1 }, | |
1837 | { "-cr", "--cursor-color", 10, 1 }, | |
49ca717b | 1838 | { "-nbc", "--no-blinking-cursor", 10, 0 }, |
081bef73 RS |
1839 | { "-fn", "--font", 10, 1 }, |
1840 | { "-font", 0, 10, 1 }, | |
94452530 EZ |
1841 | { "-fs", "--fullscreen", 10, 0 }, |
1842 | { "-fw", "--fullwidth", 10, 0 }, | |
1843 | { "-fh", "--fullheight", 10, 0 }, | |
081bef73 RS |
1844 | { "-g", "--geometry", 10, 1 }, |
1845 | { "-geometry", 0, 10, 1 }, | |
1846 | { "-T", "--title", 10, 1 }, | |
ae63ae52 | 1847 | { "-title", 0, 10, 1 }, |
081bef73 RS |
1848 | { "-name", "--name", 10, 1 }, |
1849 | { "-xrm", "--xrm", 10, 1 }, | |
1540a61a | 1850 | { "-parent-id", "--parent-id", 10, 1 }, |
fcdeb5d9 RS |
1851 | { "-r", "--reverse-video", 5, 0 }, |
1852 | { "-rv", 0, 5, 0 }, | |
1853 | { "-reverse", 0, 5, 0 }, | |
ae63ae52 | 1854 | { "-hb", "--horizontal-scroll-bars", 5, 0 }, |
fcdeb5d9 | 1855 | { "-vb", "--vertical-scroll-bars", 5, 0 }, |
d20e1b1e | 1856 | { "-color", "--color", 5, 0}, |
16706228 JL |
1857 | { "-no-splash", "--no-splash", 3, 0 }, |
1858 | { "-no-desktop", "--no-desktop", 3, 0 }, | |
fcdeb5d9 RS |
1859 | /* These have the same priority as ordinary file name args, |
1860 | so they are not reordered with respect to those. */ | |
4af9e0b3 RS |
1861 | { "-L", "--directory", 0, 1 }, |
1862 | { "-directory", 0, 0, 1 }, | |
fcdeb5d9 RS |
1863 | { "-l", "--load", 0, 1 }, |
1864 | { "-load", 0, 0, 1 }, | |
21a4ff8e GM |
1865 | /* This has no longname, because using --scriptload confuses sort_args, |
1866 | because then the --script long option seems to match twice; ie | |
1867 | you can't have a long option which is a prefix of another long | |
1868 | option. In any case, this is entirely an internal option. */ | |
1869 | { "-scriptload", NULL, 0, 1 }, | |
fcdeb5d9 RS |
1870 | { "-f", "--funcall", 0, 1 }, |
1871 | { "-funcall", 0, 0, 1 }, | |
575985b1 | 1872 | { "-eval", "--eval", 0, 1 }, |
67a5596f | 1873 | { "-execute", "--execute", 0, 1 }, |
2e13f8e9 RS |
1874 | { "-find-file", "--find-file", 0, 1 }, |
1875 | { "-visit", "--visit", 0, 1 }, | |
67a5596f | 1876 | { "-file", "--file", 0, 1 }, |
fcdeb5d9 | 1877 | { "-insert", "--insert", 0, 1 }, |
f2bc3538 | 1878 | /* This should be processed after ordinary file name args and the like. */ |
fcdeb5d9 | 1879 | { "-kill", "--kill", -10, 0 }, |
081bef73 RS |
1880 | }; |
1881 | ||
1882 | /* Reorder the elements of ARGV (assumed to have ARGC elements) | |
1883 | so that the highest priority ones come first. | |
1884 | Do not change the order of elements of equal priority. | |
956e3c7e RS |
1885 | If an option takes an argument, keep it and its argument together. |
1886 | ||
1887 | If an option that takes no argument appears more | |
1888 | than once, eliminate all but one copy of it. */ | |
081bef73 RS |
1889 | |
1890 | static void | |
1891 | sort_args (argc, argv) | |
1892 | int argc; | |
1893 | char **argv; | |
1894 | { | |
1895 | char **new = (char **) xmalloc (sizeof (char *) * argc); | |
1896 | /* For each element of argv, | |
1897 | the corresponding element of options is: | |
1898 | 0 for an option that takes no arguments, | |
1899 | 1 for an option that takes one argument, etc. | |
1900 | -1 for an ordinary non-option argument. */ | |
6dad9359 | 1901 | int *options = (int *) xmalloc (sizeof (int) * argc); |
081bef73 RS |
1902 | int *priority = (int *) xmalloc (sizeof (int) * argc); |
1903 | int to = 1; | |
956e3c7e | 1904 | int incoming_used = 1; |
081bef73 RS |
1905 | int from; |
1906 | int i; | |
1907 | ||
1908 | /* Categorize all the options, | |
1909 | and figure out which argv elts are option arguments. */ | |
1910 | for (from = 1; from < argc; from++) | |
1911 | { | |
1912 | options[from] = -1; | |
fcdeb5d9 | 1913 | priority[from] = 0; |
081bef73 RS |
1914 | if (argv[from][0] == '-') |
1915 | { | |
1916 | int match, thislen; | |
1917 | char *equals; | |
1918 | ||
c96f26f4 RS |
1919 | /* If we have found "--", don't consider |
1920 | any more arguments as options. */ | |
249443b6 | 1921 | if (argv[from][1] == '-' && argv[from][2] == 0) |
c96f26f4 RS |
1922 | { |
1923 | /* Leave the "--", and everything following it, at the end. */ | |
1924 | for (; from < argc; from++) | |
1925 | { | |
1926 | priority[from] = -100; | |
1927 | options[from] = -1; | |
1928 | } | |
1929 | break; | |
1930 | } | |
1931 | ||
081bef73 RS |
1932 | /* Look for a match with a known old-fashioned option. */ |
1933 | for (i = 0; i < sizeof (standard_args) / sizeof (standard_args[0]); i++) | |
1934 | if (!strcmp (argv[from], standard_args[i].name)) | |
1935 | { | |
1936 | options[from] = standard_args[i].nargs; | |
1937 | priority[from] = standard_args[i].priority; | |
fd76ec52 RS |
1938 | if (from + standard_args[i].nargs >= argc) |
1939 | fatal ("Option `%s' requires an argument\n", argv[from]); | |
081bef73 RS |
1940 | from += standard_args[i].nargs; |
1941 | goto done; | |
1942 | } | |
1943 | ||
1944 | /* Look for a match with a known long option. | |
1945 | MATCH is -1 if no match so far, -2 if two or more matches so far, | |
1946 | >= 0 (the table index of the match) if just one match so far. */ | |
1947 | if (argv[from][1] == '-') | |
1948 | { | |
1949 | match = -1; | |
1950 | thislen = strlen (argv[from]); | |
1951 | equals = index (argv[from], '='); | |
1952 | if (equals != 0) | |
1953 | thislen = equals - argv[from]; | |
1954 | ||
f609ef57 KH |
1955 | for (i = 0; |
1956 | i < sizeof (standard_args) / sizeof (standard_args[0]); i++) | |
1957 | if (standard_args[i].longname | |
1958 | && !strncmp (argv[from], standard_args[i].longname, | |
1959 | thislen)) | |
081bef73 RS |
1960 | { |
1961 | if (match == -1) | |
1962 | match = i; | |
1963 | else | |
1964 | match = -2; | |
1965 | } | |
1966 | ||
1967 | /* If we found exactly one match, use that. */ | |
1968 | if (match >= 0) | |
1969 | { | |
1970 | options[from] = standard_args[match].nargs; | |
1971 | priority[from] = standard_args[match].priority; | |
1972 | /* If --OPTION=VALUE syntax is used, | |
1973 | this option uses just one argv element. */ | |
1974 | if (equals != 0) | |
1975 | options[from] = 0; | |
fd76ec52 RS |
1976 | if (from + options[from] >= argc) |
1977 | fatal ("Option `%s' requires an argument\n", argv[from]); | |
081bef73 RS |
1978 | from += options[from]; |
1979 | } | |
a09a5b5b GM |
1980 | /* FIXME When match < 0, shouldn't there be some error, |
1981 | or at least indication to the user that there was a | |
1982 | problem? */ | |
081bef73 RS |
1983 | } |
1984 | done: ; | |
1985 | } | |
1986 | } | |
1987 | ||
1988 | /* Copy the arguments, in order of decreasing priority, to NEW. */ | |
1989 | new[0] = argv[0]; | |
956e3c7e | 1990 | while (incoming_used < argc) |
081bef73 RS |
1991 | { |
1992 | int best = -1; | |
2c70c992 | 1993 | int best_priority = -9999; |
081bef73 RS |
1994 | |
1995 | /* Find the highest priority remaining option. | |
1996 | If several have equal priority, take the first of them. */ | |
1997 | for (from = 1; from < argc; from++) | |
1998 | { | |
1999 | if (argv[from] != 0 && priority[from] > best_priority) | |
2000 | { | |
2001 | best_priority = priority[from]; | |
2002 | best = from; | |
2003 | } | |
2004 | /* Skip option arguments--they are tied to the options. */ | |
2005 | if (options[from] > 0) | |
2006 | from += options[from]; | |
2007 | } | |
7db35a48 | 2008 | |
081bef73 RS |
2009 | if (best < 0) |
2010 | abort (); | |
2011 | ||
956e3c7e RS |
2012 | /* Copy the highest priority remaining option, with its args, to NEW. |
2013 | Unless it is a duplicate of the previous one. */ | |
2014 | if (! (options[best] == 0 | |
2015 | && ! strcmp (new[to - 1], argv[best]))) | |
2016 | { | |
2017 | new[to++] = argv[best]; | |
2018 | for (i = 0; i < options[best]; i++) | |
2019 | new[to++] = argv[best + i + 1]; | |
2020 | } | |
2021 | ||
2022 | incoming_used += 1 + (options[best] > 0 ? options[best] : 0); | |
081bef73 RS |
2023 | |
2024 | /* Clear out this option in ARGV. */ | |
2025 | argv[best] = 0; | |
2026 | for (i = 0; i < options[best]; i++) | |
2027 | argv[best + i + 1] = 0; | |
2028 | } | |
2029 | ||
81b7af72 RS |
2030 | /* If duplicate options were deleted, fill up extra space with null ptrs. */ |
2031 | while (to < argc) | |
2032 | new[to++] = 0; | |
2033 | ||
6dad9359 | 2034 | bcopy (new, argv, sizeof (char *) * argc); |
0bf591da | 2035 | |
68db37aa KS |
2036 | xfree (options); |
2037 | xfree (new); | |
2038 | xfree (priority); | |
081bef73 RS |
2039 | } |
2040 | \f | |
f927c5ae | 2041 | DEFUN ("kill-emacs", Fkill_emacs, Skill_emacs, 0, 1, "P", |
7db35a48 PJ |
2042 | doc: /* Exit the Emacs job and kill it. |
2043 | If ARG is an integer, return ARG as the exit program code. | |
b224de9b | 2044 | If ARG is a string, stuff it as keyboard input. |
7db35a48 PJ |
2045 | |
2046 | The value of `kill-emacs-hook', if not void, | |
2047 | is a list of functions (of no args), | |
2048 | all of which are called before Emacs is actually killed. */) | |
2049 | (arg) | |
f927c5ae JB |
2050 | Lisp_Object arg; |
2051 | { | |
f927c5ae JB |
2052 | struct gcpro gcpro1; |
2053 | ||
2054 | GCPRO1 (arg); | |
2055 | ||
2056 | if (feof (stdin)) | |
2057 | arg = Qt; | |
2058 | ||
2447c626 | 2059 | if (!NILP (Vrun_hooks) && !noninteractive) |
f927c5ae JB |
2060 | call1 (Vrun_hooks, intern ("kill-emacs-hook")); |
2061 | ||
f927c5ae JB |
2062 | UNGCPRO; |
2063 | ||
2064 | /* Is it really necessary to do this deassign | |
2065 | when we are going to exit anyway? */ | |
2066 | /* #ifdef VMS | |
2067 | stop_vms_input (); | |
2068 | #endif */ | |
40be253a | 2069 | |
d0068e25 | 2070 | shut_down_emacs (0, 0, STRINGP (arg) ? arg : Qnil); |
40be253a | 2071 | |
58545838 KH |
2072 | /* If we have an auto-save list file, |
2073 | kill it because we are exiting Emacs deliberately (not crashing). | |
2074 | Do it after shut_down_emacs, which does an auto-save. */ | |
2075 | if (STRINGP (Vauto_save_list_file_name)) | |
d5db4077 | 2076 | unlink (SDATA (Vauto_save_list_file_name)); |
58545838 | 2077 | |
fa439170 | 2078 | exit (INTEGERP (arg) ? XINT (arg) : EXIT_SUCCESS); |
f927c5ae | 2079 | /* NOTREACHED */ |
f1145b54 | 2080 | return Qnil; |
f927c5ae | 2081 | } |
40be253a JB |
2082 | |
2083 | ||
2084 | /* Perform an orderly shutdown of Emacs. Autosave any modified | |
2085 | buffers, kill any child processes, clean up the terminal modes (if | |
2086 | we're in the foreground), and other stuff like that. Don't perform | |
2087 | any redisplay; this may be called when Emacs is shutting down in | |
2088 | the background, or after its X connection has died. | |
2089 | ||
2090 | If SIG is a signal number, print a message for it. | |
2091 | ||
2092 | This is called by fatal signal handlers, X protocol error handlers, | |
2093 | and Fkill_emacs. */ | |
f7ab4e3d | 2094 | |
40be253a | 2095 | void |
f7ab4e3d | 2096 | shut_down_emacs (sig, no_x, stuff) |
41423a80 | 2097 | int sig, no_x; |
f7ab4e3d | 2098 | Lisp_Object stuff; |
40be253a | 2099 | { |
829d872b RS |
2100 | /* Prevent running of hooks from now on. */ |
2101 | Vrun_hooks = Qnil; | |
2102 | ||
9db03f6c KS |
2103 | /* Don't update display from now on. */ |
2104 | Vinhibit_redisplay = Qt; | |
2105 | ||
7db35a48 | 2106 | /* If we are controlling the terminal, reset terminal modes. */ |
40be253a JB |
2107 | #ifdef EMACS_HAVE_TTY_PGRP |
2108 | { | |
d04d81d2 RS |
2109 | int pgrp = EMACS_GETPGRP (0); |
2110 | ||
40be253a JB |
2111 | int tpgrp; |
2112 | if (EMACS_GET_TTY_PGRP (0, &tpgrp) != -1 | |
5a570e37 | 2113 | && tpgrp == pgrp) |
40be253a | 2114 | { |
28d440ab | 2115 | reset_all_sys_modes (); |
40be253a | 2116 | if (sig && sig != SIGTERM) |
6b61353c | 2117 | fprintf (stderr, "Fatal error (%d)", sig); |
40be253a JB |
2118 | } |
2119 | } | |
2120 | #else | |
2121 | fflush (stdout); | |
0a125897 | 2122 | reset_all_sys_modes (); |
40be253a JB |
2123 | #endif |
2124 | ||
f7ab4e3d RS |
2125 | stuff_buffered_input (stuff); |
2126 | ||
ba7c29f3 | 2127 | #ifdef subprocesses |
92d835a4 | 2128 | inhibit_sentinels = 1; |
ba7c29f3 | 2129 | #endif |
40be253a JB |
2130 | kill_buffer_processes (Qnil); |
2131 | Fdo_auto_save (Qt, Qnil); | |
2132 | ||
2133 | #ifdef CLASH_DETECTION | |
2134 | unlock_all_files (); | |
2135 | #endif | |
2136 | ||
2137 | #ifdef VMS | |
2138 | kill_vms_processes (); | |
2139 | #endif | |
2140 | ||
5e7f8733 | 2141 | #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */ |
41423a80 | 2142 | #ifdef HAVE_X_WINDOWS |
f7511647 | 2143 | /* It's not safe to call intern here. Maybe we are crashing. */ |
2246281f KL |
2144 | if (!noninteractive && SYMBOLP (Vinitial_window_system) |
2145 | && SCHARS (SYMBOL_NAME (Vinitial_window_system)) == 1 | |
2146 | && SREF (SYMBOL_NAME (Vinitial_window_system), 0) == 'x' | |
f7511647 | 2147 | && ! no_x) |
41423a80 RS |
2148 | Fx_close_current_connection (); |
2149 | #endif /* HAVE_X_WINDOWS */ | |
5e7f8733 | 2150 | #endif |
41423a80 | 2151 | |
40be253a JB |
2152 | #ifdef SIGIO |
2153 | /* There is a tendency for a SIGIO signal to arrive within exit, | |
2154 | and cause a SIGHUP because the input descriptor is already closed. */ | |
2155 | unrequest_sigio (); | |
2156 | signal (SIGIO, SIG_IGN); | |
2157 | #endif | |
41f339d4 RS |
2158 | |
2159 | #ifdef WINDOWSNT | |
2160 | term_ntproc (); | |
2161 | #endif | |
d546e578 | 2162 | |
cd8d4168 GM |
2163 | /* Do this only if terminating normally, we want glyph matrices |
2164 | etc. in a core dump. */ | |
200f868e | 2165 | if (sig == 0 || sig == SIGTERM) |
cd8d4168 GM |
2166 | { |
2167 | check_glyph_memory (); | |
2168 | check_message_stack (); | |
2169 | } | |
90d920b6 | 2170 | |
d546e578 EZ |
2171 | #ifdef MSDOS |
2172 | dos_cleanup (); | |
2173 | #endif | |
40be253a JB |
2174 | } |
2175 | ||
2176 | ||
f927c5ae JB |
2177 | \f |
2178 | #ifndef CANNOT_DUMP | |
f927c5ae JB |
2179 | |
2180 | #ifdef HAVE_SHM | |
2181 | ||
2182 | DEFUN ("dump-emacs-data", Fdump_emacs_data, Sdump_emacs_data, 1, 1, 0, | |
7db35a48 PJ |
2183 | doc: /* Dump current state of Emacs into data file FILENAME. |
2184 | This function exists on systems that use HAVE_SHM. */) | |
2185 | (filename) | |
c9aae259 | 2186 | Lisp_Object filename; |
f927c5ae | 2187 | { |
55697f5b | 2188 | extern char my_edata[]; |
f927c5ae | 2189 | Lisp_Object tem; |
f927c5ae | 2190 | |
4fab758d | 2191 | check_pure_size (); |
b7826503 | 2192 | CHECK_STRING (filename); |
c9aae259 | 2193 | filename = Fexpand_file_name (filename, Qnil); |
f927c5ae JB |
2194 | |
2195 | tem = Vpurify_flag; | |
2196 | Vpurify_flag = Qnil; | |
2197 | ||
2198 | fflush (stdout); | |
7db35a48 | 2199 | /* Tell malloc where start of impure now is. */ |
f927c5ae JB |
2200 | /* Also arrange for warnings when nearly out of space. */ |
2201 | #ifndef SYSTEM_MALLOC | |
1090a161 | 2202 | memory_warnings (my_edata, malloc_warning); |
f927c5ae | 2203 | #endif |
d5db4077 | 2204 | map_out_data (SDATA (filename)); |
f927c5ae JB |
2205 | |
2206 | Vpurify_flag = tem; | |
2207 | ||
2208 | return Qnil; | |
2209 | } | |
2210 | ||
2211 | #else /* not HAVE_SHM */ | |
2212 | ||
2213 | DEFUN ("dump-emacs", Fdump_emacs, Sdump_emacs, 2, 2, 0, | |
7db35a48 PJ |
2214 | doc: /* Dump current state of Emacs into executable file FILENAME. |
2215 | Take symbols from SYMFILE (presumably the file you executed to run Emacs). | |
2216 | This is used in the file `loadup.el' when building Emacs. | |
2217 | ||
2218 | You must run Emacs in batch mode in order to dump it. */) | |
2219 | (filename, symfile) | |
c9aae259 | 2220 | Lisp_Object filename, symfile; |
f927c5ae | 2221 | { |
55697f5b | 2222 | extern char my_edata[]; |
f927c5ae | 2223 | Lisp_Object tem; |
1b7ddf4f | 2224 | Lisp_Object symbol; |
331379bf | 2225 | int count = SPECPDL_INDEX (); |
4fab758d GM |
2226 | |
2227 | check_pure_size (); | |
f927c5ae | 2228 | |
87a98b1a RS |
2229 | if (! noninteractive) |
2230 | error ("Dumping Emacs works only in batch mode"); | |
2231 | ||
848a925e | 2232 | #ifdef GNU_LINUX |
dede2792 JD |
2233 | if (heap_bss_diff > MAX_HEAP_BSS_DIFF) |
2234 | { | |
2235 | fprintf (stderr, "**************************************************\n"); | |
2236 | fprintf (stderr, "Warning: Your system has a gap between BSS and the\n"); | |
e79beb56 | 2237 | fprintf (stderr, "heap (%lu bytes). This usually means that exec-shield\n", |
c37caf9d JD |
2238 | heap_bss_diff); |
2239 | fprintf (stderr, "or something similar is in effect. The dump may\n"); | |
e79beb56 | 2240 | fprintf (stderr, "fail because of this. See the section about\n"); |
c37caf9d | 2241 | fprintf (stderr, "exec-shield in etc/PROBLEMS for more information.\n"); |
dede2792 JD |
2242 | fprintf (stderr, "**************************************************\n"); |
2243 | } | |
848a925e | 2244 | #endif /* GNU_LINUX */ |
dede2792 | 2245 | |
1b7ddf4f RS |
2246 | /* Bind `command-line-processed' to nil before dumping, |
2247 | so that the dumped Emacs will process its command line | |
2248 | and set up to work with X windows if appropriate. */ | |
4aaa3607 | 2249 | symbol = intern ("command-line-processed"); |
1b7ddf4f RS |
2250 | specbind (symbol, Qnil); |
2251 | ||
b7826503 | 2252 | CHECK_STRING (filename); |
c9aae259 EN |
2253 | filename = Fexpand_file_name (filename, Qnil); |
2254 | if (!NILP (symfile)) | |
f927c5ae | 2255 | { |
b7826503 | 2256 | CHECK_STRING (symfile); |
d5db4077 | 2257 | if (SCHARS (symfile)) |
c9aae259 | 2258 | symfile = Fexpand_file_name (symfile, Qnil); |
f927c5ae JB |
2259 | } |
2260 | ||
2261 | tem = Vpurify_flag; | |
2262 | Vpurify_flag = Qnil; | |
2263 | ||
0269dedb RS |
2264 | #ifdef HAVE_TZSET |
2265 | set_time_zone_rule (dump_tz); | |
2266 | #ifndef LOCALTIME_CACHE | |
2267 | /* Force a tz reload, since set_time_zone_rule doesn't. */ | |
2268 | tzset (); | |
2269 | #endif | |
2270 | #endif | |
2271 | ||
f927c5ae JB |
2272 | fflush (stdout); |
2273 | #ifdef VMS | |
d5db4077 | 2274 | mapout_data (SDATA (filename)); |
f927c5ae | 2275 | #else |
7db35a48 | 2276 | /* Tell malloc where start of impure now is. */ |
f927c5ae JB |
2277 | /* Also arrange for warnings when nearly out of space. */ |
2278 | #ifndef SYSTEM_MALLOC | |
cc5f52cb RS |
2279 | #ifndef WINDOWSNT |
2280 | /* On Windows, this was done before dumping, and that once suffices. | |
2281 | Meanwhile, my_edata is not valid on Windows. */ | |
cb37cf78 | 2282 | memory_warnings (my_edata, malloc_warning); |
cc5f52cb | 2283 | #endif /* not WINDOWSNT */ |
15aaf1b5 | 2284 | #endif |
06ca62eb | 2285 | #if !defined (SYSTEM_MALLOC) && defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT |
aa477689 JD |
2286 | /* Pthread may call malloc before main, and then we will get an endless |
2287 | loop, because pthread_self (see alloc.c) calls malloc the first time | |
2288 | it is called on some systems. */ | |
2289 | reset_malloc_hooks (); | |
2290 | #endif | |
15aaf1b5 RS |
2291 | #ifdef DOUG_LEA_MALLOC |
2292 | malloc_state_ptr = malloc_get_state (); | |
f927c5ae | 2293 | #endif |
2b7377ca | 2294 | |
a74c5ec1 | 2295 | #ifdef USE_MMAP_FOR_BUFFERS |
2b7377ca GM |
2296 | mmap_set_vars (0); |
2297 | #endif | |
d5db4077 KR |
2298 | unexec (SDATA (filename), |
2299 | !NILP (symfile) ? SDATA (symfile) : 0, my_edata, 0, 0); | |
a74c5ec1 | 2300 | #ifdef USE_MMAP_FOR_BUFFERS |
2b7377ca GM |
2301 | mmap_set_vars (1); |
2302 | #endif | |
15aaf1b5 RS |
2303 | #ifdef DOUG_LEA_MALLOC |
2304 | free (malloc_state_ptr); | |
2305 | #endif | |
f927c5ae JB |
2306 | #endif /* not VMS */ |
2307 | ||
2308 | Vpurify_flag = tem; | |
2309 | ||
1b7ddf4f | 2310 | return unbind_to (count, Qnil); |
f927c5ae JB |
2311 | } |
2312 | ||
2313 | #endif /* not HAVE_SHM */ | |
2314 | ||
2315 | #endif /* not CANNOT_DUMP */ | |
2316 | \f | |
68c45bf0 PE |
2317 | #if HAVE_SETLOCALE |
2318 | /* Recover from setlocale (LC_ALL, ""). */ | |
2319 | void | |
2320 | fixup_locale () | |
2321 | { | |
68c45bf0 PE |
2322 | /* The Emacs Lisp reader needs LC_NUMERIC to be "C", |
2323 | so that numbers are read and printed properly for Emacs Lisp. */ | |
2324 | setlocale (LC_NUMERIC, "C"); | |
68c45bf0 PE |
2325 | } |
2326 | ||
0c8559bb PE |
2327 | /* Set system locale CATEGORY, with previous locale *PLOCALE, to |
2328 | DESIRED_LOCALE. */ | |
68c45bf0 PE |
2329 | static void |
2330 | synchronize_locale (category, plocale, desired_locale) | |
2331 | int category; | |
2332 | Lisp_Object *plocale; | |
2333 | Lisp_Object desired_locale; | |
2334 | { | |
0c8559bb PE |
2335 | if (! EQ (*plocale, desired_locale)) |
2336 | { | |
2337 | *plocale = desired_locale; | |
2338 | setlocale (category, (STRINGP (desired_locale) | |
3b6536b1 | 2339 | ? (char *) SDATA (desired_locale) |
0c8559bb PE |
2340 | : "")); |
2341 | } | |
68c45bf0 PE |
2342 | } |
2343 | ||
ca9c0567 | 2344 | /* Set system time locale to match Vsystem_time_locale, if possible. */ |
68c45bf0 | 2345 | void |
ca9c0567 | 2346 | synchronize_system_time_locale () |
68c45bf0 | 2347 | { |
ca9c0567 PE |
2348 | synchronize_locale (LC_TIME, &Vprevious_system_time_locale, |
2349 | Vsystem_time_locale); | |
68c45bf0 PE |
2350 | } |
2351 | ||
ca9c0567 PE |
2352 | /* Set system messages locale to match Vsystem_messages_locale, if |
2353 | possible. */ | |
68c45bf0 | 2354 | void |
ca9c0567 | 2355 | synchronize_system_messages_locale () |
68c45bf0 PE |
2356 | { |
2357 | #ifdef LC_MESSAGES | |
ca9c0567 PE |
2358 | synchronize_locale (LC_MESSAGES, &Vprevious_system_messages_locale, |
2359 | Vsystem_messages_locale); | |
68c45bf0 PE |
2360 | #endif |
2361 | } | |
2362 | #endif /* HAVE_SETLOCALE */ | |
2363 | \f | |
4b163808 | 2364 | #ifndef SEPCHAR |
f927c5ae JB |
2365 | #define SEPCHAR ':' |
2366 | #endif | |
2367 | ||
2368 | Lisp_Object | |
2369 | decode_env_path (evarname, defalt) | |
2370 | char *evarname, *defalt; | |
2371 | { | |
2372 | register char *path, *p; | |
213d0b1f | 2373 | Lisp_Object lpath, element, tem; |
f927c5ae | 2374 | |
2447c626 JB |
2375 | /* It's okay to use getenv here, because this function is only used |
2376 | to initialize variables when Emacs starts up, and isn't called | |
2377 | after that. */ | |
e065a56e JB |
2378 | if (evarname != 0) |
2379 | path = (char *) getenv (evarname); | |
2380 | else | |
2381 | path = 0; | |
f927c5ae JB |
2382 | if (!path) |
2383 | path = defalt; | |
6a30e6d6 RS |
2384 | #ifdef DOS_NT |
2385 | /* Ensure values from the environment use the proper directory separator. */ | |
2386 | if (path) | |
2387 | { | |
2388 | p = alloca (strlen (path) + 1); | |
2389 | strcpy (p, path); | |
2390 | path = p; | |
2391 | ||
2392 | if ('/' == DIRECTORY_SEP) | |
2393 | dostounix_filename (path); | |
2394 | else | |
2395 | unixtodos_filename (path); | |
2396 | } | |
2397 | #endif | |
f927c5ae JB |
2398 | lpath = Qnil; |
2399 | while (1) | |
2400 | { | |
2401 | p = index (path, SEPCHAR); | |
2402 | if (!p) p = path + strlen (path); | |
213d0b1f RS |
2403 | element = (p - path ? make_string (path, p - path) |
2404 | : build_string (".")); | |
2405 | ||
2406 | /* Add /: to the front of the name | |
2407 | if it would otherwise be treated as magic. */ | |
2408 | tem = Ffind_file_name_handler (element, Qt); | |
ca3df2d5 RS |
2409 | |
2410 | /* However, if the handler says "I'm safe", | |
2411 | don't bother adding /:. */ | |
2412 | if (SYMBOLP (tem)) | |
2413 | { | |
2414 | Lisp_Object prop; | |
2415 | prop = Fget (tem, intern ("safe-magic")); | |
2416 | if (! NILP (prop)) | |
2417 | tem = Qnil; | |
2418 | } | |
2419 | ||
213d0b1f RS |
2420 | if (! NILP (tem)) |
2421 | element = concat2 (build_string ("/:"), element); | |
2422 | ||
2423 | lpath = Fcons (element, lpath); | |
f927c5ae JB |
2424 | if (*p) |
2425 | path = p + 1; | |
2426 | else | |
2427 | break; | |
2428 | } | |
2429 | return Fnreverse (lpath); | |
2430 | } | |
2431 | ||
dfcf069d | 2432 | void |
f927c5ae JB |
2433 | syms_of_emacs () |
2434 | { | |
213d0b1f RS |
2435 | Qfile_name_handler_alist = intern ("file-name-handler-alist"); |
2436 | staticpro (&Qfile_name_handler_alist); | |
2437 | ||
83591e66 | 2438 | #ifndef CANNOT_DUMP |
f927c5ae JB |
2439 | #ifdef HAVE_SHM |
2440 | defsubr (&Sdump_emacs_data); | |
2441 | #else | |
2442 | defsubr (&Sdump_emacs); | |
83591e66 | 2443 | #endif |
f927c5ae JB |
2444 | #endif |
2445 | ||
2446 | defsubr (&Skill_emacs); | |
2447 | ||
59653951 | 2448 | defsubr (&Sinvocation_name); |
ace40a69 | 2449 | defsubr (&Sinvocation_directory); |
59653951 | 2450 | |
f927c5ae | 2451 | DEFVAR_LISP ("command-line-args", &Vcommand_line_args, |
2a9d2ed6 RS |
2452 | doc: /* Args passed by shell to Emacs, as a list of strings. |
2453 | Many arguments are deleted from the list as they are processed. */); | |
f927c5ae JB |
2454 | |
2455 | DEFVAR_LISP ("system-type", &Vsystem_type, | |
40a8993a NR |
2456 | doc: /* Value is symbol indicating type of operating system you are using. |
2457 | Special values: | |
2458 | `gnu/linux' compiled for a GNU/Linux system. | |
2459 | `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...). | |
2460 | `macos' compiled for Mac OS 9. | |
2461 | `ms-dos' compiled as an MS-DOS application. | |
2462 | `windows-nt' compiled as a native W32 application. | |
2463 | `cygwin' compiled using the Cygwin library. | |
e2e87e15 JB |
2464 | `vax-vms' or |
2465 | `axp-vms' compiled for a (Open)VMS system. | |
40a8993a | 2466 | Anything else indicates some sort of Unix system. */); |
f927c5ae JB |
2467 | Vsystem_type = intern (SYSTEM_TYPE); |
2468 | ||
271c7b7c | 2469 | DEFVAR_LISP ("system-configuration", &Vsystem_configuration, |
7db35a48 PJ |
2470 | doc: /* Value is string indicating configuration Emacs was built for. |
2471 | On MS-Windows, the value reflects the OS flavor and version on which | |
2472 | Emacs is running. */); | |
f7511647 | 2473 | Vsystem_configuration = build_string (EMACS_CONFIGURATION); |
271c7b7c | 2474 | |
f0fc0b1a | 2475 | DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options, |
7db35a48 | 2476 | doc: /* String containing the configuration options Emacs was built with. */); |
f0fc0b1a KH |
2477 | Vsystem_configuration_options = build_string (EMACS_CONFIG_OPTIONS); |
2478 | ||
f927c5ae | 2479 | DEFVAR_BOOL ("noninteractive", &noninteractive1, |
7db35a48 | 2480 | doc: /* Non-nil means Emacs is running without interactive terminal. */); |
e5d77022 | 2481 | |
e5d77022 | 2482 | DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook, |
e79beb56 | 2483 | doc: /* Hook to be run when `kill-emacs' is called. |
d77b70e5 | 2484 | Since `kill-emacs' may be invoked when the terminal is disconnected (or |
7db35a48 PJ |
2485 | in other similar situations), functions placed on this hook should not |
2486 | expect to be able to interact with the user. To ask for confirmation, | |
d77b70e5 MR |
2487 | see `kill-emacs-query-functions' instead. |
2488 | ||
2489 | The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */); | |
edc8ae07 | 2490 | Vkill_emacs_hook = Qnil; |
3005da00 RS |
2491 | |
2492 | DEFVAR_INT ("emacs-priority", &emacs_priority, | |
7db35a48 PJ |
2493 | doc: /* Priority for Emacs to run at. |
2494 | This value is effective only if set before Emacs is dumped, | |
2495 | and only if the Emacs executable is installed with setuid to permit | |
2496 | it to change priority. (Emacs sets its uid back to the real uid.) | |
2497 | Currently, you need to define SET_EMACS_PRIORITY in `config.h' | |
2498 | before you compile Emacs, to enable the code for this feature. */); | |
e7a9e1c3 | 2499 | emacs_priority = 0; |
074a066b GV |
2500 | |
2501 | DEFVAR_LISP ("path-separator", &Vpath_separator, | |
c7ed3276 EZ |
2502 | doc: /* String containing the character that separates directories in |
2503 | search paths, such as PATH and other similar environment variables. */); | |
074a066b GV |
2504 | { |
2505 | char c = SEPCHAR; | |
2506 | Vpath_separator = make_string (&c, 1); | |
2507 | } | |
59653951 | 2508 | |
f67de86f | 2509 | DEFVAR_LISP ("invocation-name", &Vinvocation_name, |
7db35a48 PJ |
2510 | doc: /* The program name that was used to run Emacs. |
2511 | Any directory names are omitted. */); | |
f67de86f RS |
2512 | |
2513 | DEFVAR_LISP ("invocation-directory", &Vinvocation_directory, | |
7db35a48 PJ |
2514 | doc: /* The directory in which the Emacs executable was found, to run it. |
2515 | The value is nil if that directory's name is not known. */); | |
f67de86f RS |
2516 | |
2517 | DEFVAR_LISP ("installation-directory", &Vinstallation_directory, | |
7db35a48 | 2518 | doc: /* A directory within which to look for the `lib-src' and `etc' directories. |
e58a672c RS |
2519 | This is non-nil when we can't find those directories in their standard |
2520 | installed locations, but we can find them near where the Emacs executable | |
2521 | was found. */); | |
07f4d123 | 2522 | Vinstallation_directory = Qnil; |
68c45bf0 | 2523 | |
ca9c0567 | 2524 | DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale, |
7db35a48 | 2525 | doc: /* System locale for messages. */); |
ca9c0567 | 2526 | Vsystem_messages_locale = Qnil; |
68c45bf0 | 2527 | |
ca9c0567 | 2528 | DEFVAR_LISP ("previous-system-messages-locale", |
7db35a48 PJ |
2529 | &Vprevious_system_messages_locale, |
2530 | doc: /* Most recently used system locale for messages. */); | |
ca9c0567 | 2531 | Vprevious_system_messages_locale = Qnil; |
68c45bf0 | 2532 | |
ca9c0567 | 2533 | DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale, |
7db35a48 | 2534 | doc: /* System locale for time. */); |
ca9c0567 | 2535 | Vsystem_time_locale = Qnil; |
68c45bf0 | 2536 | |
ca9c0567 | 2537 | DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale, |
7db35a48 | 2538 | doc: /* Most recently used system locale for time. */); |
ca9c0567 | 2539 | Vprevious_system_time_locale = Qnil; |
f927c5ae | 2540 | } |
6b61353c KH |
2541 | |
2542 | /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e | |
2543 | (do not change this comment) */ |