Commit | Line | Data |
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f927c5ae | 1 | /* Fully extensible Emacs, running on Unix, intended for GNU. |
bd6bc222 | 2 | |
acaf905b | 3 | Copyright (C) 1985-1987, 1993-1995, 1997-1999, 2001-2012 |
bd6bc222 | 4 | Free Software Foundation, Inc. |
f927c5ae JB |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
9ec0b715 | 8 | GNU Emacs is free software: you can redistribute it and/or modify |
f927c5ae | 9 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
10 | the Free Software Foundation, either version 3 of the License, or |
11 | (at your option) any later version. | |
f927c5ae JB |
12 | |
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 19 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
f927c5ae JB |
20 | |
21 | ||
68c45bf0 | 22 | #include <config.h> |
f927c5ae JB |
23 | #include <signal.h> |
24 | #include <errno.h> | |
f927c5ae JB |
25 | #include <stdio.h> |
26 | ||
27 | #include <sys/types.h> | |
28 | #include <sys/file.h> | |
d7306fe6 | 29 | #include <setjmp.h> |
cda4a5fd | 30 | #include <unistd.h> |
cda4a5fd | 31 | |
0898ca10 JB |
32 | #include "lisp.h" |
33 | ||
17a2cbbd DC |
34 | #ifdef HAVE_WINDOW_SYSTEM |
35 | #include TERM_HEADER | |
36 | #endif /* HAVE_WINDOW_SYSTEM */ | |
37 | ||
edd3ff1d JR |
38 | #ifdef WINDOWSNT |
39 | #include <fcntl.h> | |
52c7f9ee JR |
40 | #include <windows.h> /* just for w32.h */ |
41 | #include "w32.h" | |
c68a2829 | 42 | #include "w32heap.h" /* for prototype of sbrk */ |
edd3ff1d JR |
43 | #endif |
44 | ||
edfda783 AR |
45 | #ifdef NS_IMPL_GNUSTEP |
46 | /* At least under Debian, GSConfig is in a subdirectory. --Stef */ | |
47 | #include <GNUstepBase/GSConfig.h> | |
48 | #endif | |
49 | ||
f927c5ae | 50 | #include "commands.h" |
bef79ee4 | 51 | #include "intervals.h" |
e5560ff7 | 52 | #include "character.h" |
a08a816a | 53 | #include "buffer.h" |
3f6abfd7 | 54 | #include "window.h" |
f927c5ae | 55 | |
edc8ae07 | 56 | #include "systty.h" |
6c3a4e9d | 57 | #include "blockinput.h" |
8090eb09 | 58 | #include "syssignal.h" |
6c362a8b | 59 | #include "process.h" |
428a555e | 60 | #include "frame.h" |
5bda49c6 | 61 | #include "termhooks.h" |
dfcf069d | 62 | #include "keyboard.h" |
e35f6ff7 | 63 | #include "keymap.h" |
a41f8bed | 64 | |
8af55556 TZ |
65 | #ifdef HAVE_GNUTLS |
66 | #include "gnutls.h" | |
67 | #endif | |
68 | ||
9e4bf381 PE |
69 | #if (defined PROFILING \ |
70 | && (defined __FreeBSD__ || defined GNU_LINUX || defined __MINGW32__)) | |
71 | # include <sys/gmon.h> | |
72 | extern void moncontrol (int mode); | |
73 | #endif | |
74 | ||
68c45bf0 PE |
75 | #ifdef HAVE_SETLOCALE |
76 | #include <locale.h> | |
77 | #endif | |
78 | ||
53c58b5d RS |
79 | #ifdef HAVE_SETRLIMIT |
80 | #include <sys/time.h> | |
81 | #include <sys/resource.h> | |
82 | #endif | |
83 | ||
dede2792 JD |
84 | #ifdef HAVE_PERSONALITY_LINUX32 |
85 | #include <sys/personality.h> | |
86 | #endif | |
87 | ||
f927c5ae JB |
88 | #ifndef O_RDWR |
89 | #define O_RDWR 2 | |
90 | #endif | |
91 | ||
16fab143 | 92 | static const char emacs_version[] = VERSION; |
1c6e5a32 | 93 | static const char emacs_copyright[] = "Copyright (C) 2012 Free Software Foundation, Inc."; |
8c5ff6dd | 94 | |
7e9fa161 JB |
95 | /* Empty lisp strings. To avoid having to build any others. */ |
96 | Lisp_Object empty_unibyte_string, empty_multibyte_string; | |
f9a6326d | 97 | |
1882aa38 PE |
98 | /* Set after Emacs has started up the first time. |
99 | Prevents reinitialization of the Lisp world and keymaps | |
100 | on subsequent starts. */ | |
101 | bool initialized; | |
f927c5ae | 102 | |
4393663b JD |
103 | #ifdef DARWIN_OS |
104 | extern void unexec_init_emacs_zone (void); | |
105 | #endif | |
106 | ||
15aaf1b5 RS |
107 | #ifdef DOUG_LEA_MALLOC |
108 | /* Preserves a pointer to the memory allocated that copies that | |
109 | static data inside glibc's malloc. */ | |
35f08c38 | 110 | static void *malloc_state_ptr; |
15aaf1b5 | 111 | /* From glibc, a routine that returns a copy of the malloc internal state. */ |
dd4c5104 | 112 | extern void *malloc_get_state (void); |
15aaf1b5 | 113 | /* From glibc, a routine that overwrites the malloc internal state. */ |
dd4c5104 | 114 | extern int malloc_set_state (void*); |
1882aa38 | 115 | /* True if the MALLOC_CHECK_ environment variable was set while |
7c9cd446 | 116 | dumping. Used to work around a bug in glibc's malloc. */ |
1882aa38 | 117 | static bool malloc_using_checking; |
15aaf1b5 RS |
118 | #endif |
119 | ||
213d0b1f RS |
120 | Lisp_Object Qfile_name_handler_alist; |
121 | ||
9dc3366b GM |
122 | Lisp_Object Qrisky_local_variable; |
123 | ||
6c07aac2 AS |
124 | Lisp_Object Qkill_emacs; |
125 | ||
1882aa38 | 126 | /* If true, Emacs should not attempt to use a window-specific code, |
7db35a48 | 127 | but instead should use the virtual terminal under which it was started. */ |
1882aa38 | 128 | bool inhibit_window_system; |
f927c5ae | 129 | |
1882aa38 | 130 | /* If true, a filter or a sentinel is running. Tested to save the match |
7db35a48 | 131 | data on the first attempt to change it inside asynchronous code. */ |
1882aa38 | 132 | bool running_asynch_code; |
7074fde6 | 133 | |
5e617bc2 | 134 | #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS) |
1882aa38 PE |
135 | /* If true, -d was specified, meaning we're using some window system. */ |
136 | bool display_arg; | |
f927c5ae JB |
137 | #endif |
138 | ||
139 | /* An address near the bottom of the stack. | |
140 | Tells GC how to save a copy of the stack. */ | |
141 | char *stack_bottom; | |
142 | ||
2949f33b | 143 | #if defined (DOUG_LEA_MALLOC) || defined (GNU_LINUX) |
dede2792 JD |
144 | /* The address where the heap starts (from the first sbrk (0) call). */ |
145 | static void *my_heap_start; | |
2949f33b | 146 | #endif |
dede2792 | 147 | |
b312a492 | 148 | #ifdef GNU_LINUX |
dede2792 | 149 | /* The gap between BSS end and heap start as far as we can tell. */ |
b312a492 PE |
150 | static uprintmax_t heap_bss_diff; |
151 | #endif | |
dede2792 | 152 | |
1882aa38 PE |
153 | /* True means running Emacs without interactive terminal. */ |
154 | bool noninteractive; | |
f927c5ae | 155 | |
1882aa38 PE |
156 | /* True means remove site-lisp directories from load-path. */ |
157 | bool no_site_lisp; | |
66b7b0fe | 158 | |
4ff029f6 DN |
159 | /* Name for the server started by the daemon.*/ |
160 | static char *daemon_name; | |
eab2ee89 | 161 | |
5790ef40 DN |
162 | /* Pipe used to send exit notification to the daemon parent at |
163 | startup. */ | |
ff808935 | 164 | int daemon_pipe[2]; |
fc012771 | 165 | |
e29f86e4 RS |
166 | /* Save argv and argc. */ |
167 | char **initial_argv; | |
168 | int initial_argc; | |
081bef73 | 169 | |
dd4c5104 | 170 | static void sort_args (int argc, char **argv); |
35f08c38 | 171 | static void syms_of_emacs (void); |
bd4590ba | 172 | |
6b61353c KH |
173 | /* MSVC needs each string be shorter than 2048 bytes, so the usage |
174 | strings below are split to not overflow this limit. */ | |
73ebcd25 | 175 | #define USAGE1 "\ |
bd4590ba GM |
176 | Usage: %s [OPTION-OR-FILENAME]...\n\ |
177 | \n\ | |
178 | Run Emacs, the extensible, customizable, self-documenting real-time\n\ | |
179 | display editor. The recommended way to start Emacs for normal editing\n\ | |
180 | is with no options at all.\n\ | |
181 | \n\ | |
49ca717b | 182 | Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\ |
bd4590ba GM |
183 | read the main documentation for these command-line arguments.\n\ |
184 | \n\ | |
185 | Initialization options:\n\ | |
186 | \n\ | |
6b61353c | 187 | --batch do not do interactive display; implies -q\n\ |
f63d0028 | 188 | --chdir DIR change to directory DIR\n\ |
598898a7 | 189 | --daemon start a server in the background\n\ |
6b61353c KH |
190 | --debug-init enable Emacs Lisp debugger for init file\n\ |
191 | --display, -d DISPLAY use X server DISPLAY\n\ | |
6b61353c KH |
192 | --no-desktop do not load a saved desktop\n\ |
193 | --no-init-file, -q load neither ~/.emacs nor default.el\n\ | |
194 | --no-shared-memory, -nl do not use shared memory\n\ | |
195 | --no-site-file do not load site-start.el\n\ | |
66b7b0fe | 196 | --no-site-lisp, -nsl do not add site-lisp directories to load-path\n\ |
6b61353c | 197 | --no-splash do not display a splash screen on startup\n\ |
2ff86b4e | 198 | --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\ |
66b7b0fe GM |
199 | --quick, -Q equivalent to:\n\ |
200 | -q --no-site-file --no-site-lisp --no-splash\n\ | |
6b61353c KH |
201 | --script FILE run FILE as an Emacs Lisp script\n\ |
202 | --terminal, -t DEVICE use DEVICE for terminal I/O\n\ | |
6b61353c KH |
203 | --user, -u USER load ~USER/.emacs instead of your own\n\ |
204 | \n%s" | |
205 | ||
206 | #define USAGE2 "\ | |
bd4590ba GM |
207 | Action options:\n\ |
208 | \n\ | |
6b61353c | 209 | FILE visit FILE using find-file\n\ |
9020b223 GM |
210 | +LINE go to line LINE in next FILE\n\ |
211 | +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\ | |
6b61353c KH |
212 | --directory, -L DIR add DIR to variable load-path\n\ |
213 | --eval EXPR evaluate Emacs Lisp expression EXPR\n\ | |
214 | --execute EXPR evaluate Emacs Lisp expression EXPR\n\ | |
215 | --file FILE visit FILE using find-file\n\ | |
216 | --find-file FILE visit FILE using find-file\n\ | |
217 | --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\ | |
218 | --insert FILE insert contents of FILE into current buffer\n\ | |
219 | --kill exit without asking for confirmation\n\ | |
220 | --load, -l FILE load Emacs Lisp FILE using the load function\n\ | |
221 | --visit FILE visit FILE using find-file\n\ | |
73ebcd25 AI |
222 | \n" |
223 | ||
6b61353c | 224 | #define USAGE3 "\ |
5b2ca26b | 225 | Display options:\n\ |
bd4590ba | 226 | \n\ |
6b61353c | 227 | --background-color, -bg COLOR window background color\n\ |
2ff86b4e NR |
228 | --basic-display, -D disable many display features;\n\ |
229 | used for debugging Emacs\n\ | |
6b61353c KH |
230 | --border-color, -bd COLOR main border color\n\ |
231 | --border-width, -bw WIDTH width of main border\n\ | |
ced74849 | 232 | --color, --color=MODE override color mode for character terminals;\n\ |
62973b41 JB |
233 | MODE defaults to `auto', and\n\ |
234 | can also be `never', `always',\n\ | |
6b61353c KH |
235 | or a mode name like `ansi8'\n\ |
236 | --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\ | |
237 | --font, -fn FONT default font; must be fixed-width\n\ | |
238 | --foreground-color, -fg COLOR window foreground color\n\ | |
239 | --fullheight, -fh make the first frame high as the screen\n\ | |
62973b41 | 240 | --fullscreen, -fs make the first frame fullscreen\n\ |
6b61353c | 241 | --fullwidth, -fw make the first frame wide as the screen\n\ |
3f1c6666 | 242 | --maximized, -mm make the first frame maximized\n\ |
6b61353c | 243 | --geometry, -g GEOMETRY window geometry\n\ |
f9e36a6d | 244 | --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\ |
6b61353c KH |
245 | --iconic start Emacs in iconified state\n\ |
246 | --internal-border, -ib WIDTH width between text and main border\n\ | |
247 | --line-spacing, -lsp PIXELS additional space to put between lines\n\ | |
248 | --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\ | |
249 | --name NAME title for initial Emacs frame\n\ | |
49ca717b | 250 | --no-blinking-cursor, -nbc disable blinking cursor\n\ |
6b61353c KH |
251 | --reverse-video, -r, -rv switch foreground and background\n\ |
252 | --title, -T TITLE title for initial Emacs frame\n\ | |
253 | --vertical-scroll-bars, -vb enable vertical scroll bars\n\ | |
254 | --xrm XRESOURCES set additional X resources\n\ | |
1540a61a | 255 | --parent-id XID set parent window\n\ |
6b61353c KH |
256 | --help display this help and exit\n\ |
257 | --version output version information and exit\n\ | |
07beadff JR |
258 | \n" |
259 | ||
260 | #define USAGE4 "\ | |
bd4590ba GM |
261 | You can generally also specify long option names with a single -; for\n\ |
262 | example, -batch as well as --batch. You can use any unambiguous\n\ | |
263 | abbreviation for a --option.\n\ | |
264 | \n\ | |
265 | Various environment variables and window system resources also affect\n\ | |
266 | Emacs' operation. See the main documentation.\n\ | |
07beadff | 267 | \n\ |
17284745 | 268 | Report bugs to bug-gnu-emacs@gnu.org. First, please see the Bugs\n\ |
bd4590ba GM |
269 | section of the Emacs manual or the file BUGS.\n" |
270 | ||
f927c5ae | 271 | \f |
7db35a48 | 272 | /* Signal code for the fatal signal that was received. */ |
35f08c38 | 273 | static int fatal_error_code; |
f927c5ae | 274 | |
1882aa38 PE |
275 | /* True if handling a fatal error already. */ |
276 | bool fatal_error_in_progress; | |
f927c5ae | 277 | |
3e9de9f6 | 278 | #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD |
9e2a2647 DN |
279 | /* When compiled with GTK and running under Gnome, |
280 | multiple threads may be created. Keep track of our main | |
3e9de9f6 | 281 | thread to make sure signals are delivered to it (see syssignal.h). */ |
333f1b6f JD |
282 | |
283 | pthread_t main_thread; | |
284 | #endif | |
285 | ||
204ee57f JD |
286 | #ifdef HAVE_NS |
287 | /* NS autrelease pool, for memory management. */ | |
288 | static void *ns_pool; | |
9e4bf381 PE |
289 | #endif |
290 | ||
204ee57f | 291 | |
4fab758d | 292 | |
7db35a48 | 293 | /* Handle bus errors, invalid instruction, etc. */ |
35f08c38 PE |
294 | #ifndef FLOAT_CATCH_SIGILL |
295 | static | |
296 | #endif | |
9af30bdf | 297 | void |
dd4c5104 | 298 | fatal_error_signal (int sig) |
f927c5ae | 299 | { |
333f1b6f | 300 | SIGNAL_THREAD_CHECK (sig); |
f927c5ae JB |
301 | fatal_error_code = sig; |
302 | signal (sig, SIG_DFL); | |
303 | ||
061b7f94 RS |
304 | TOTALLY_UNBLOCK_INPUT; |
305 | ||
f927c5ae | 306 | /* If fatal error occurs in code below, avoid infinite recursion. */ |
8090eb09 JB |
307 | if (! fatal_error_in_progress) |
308 | { | |
309 | fatal_error_in_progress = 1; | |
f927c5ae | 310 | |
9c524fcb | 311 | if (sig == SIGTERM || sig == SIGHUP || sig == SIGINT) |
f63d0028 JD |
312 | Fkill_emacs (make_number (sig)); |
313 | ||
1882aa38 | 314 | shut_down_emacs (sig, Qnil); |
8090eb09 | 315 | } |
f927c5ae | 316 | |
8090eb09 JB |
317 | /* Signal the same code; this time it will really be fatal. |
318 | Remember that since we're in a signal handler, the signal we're | |
319 | going to send is probably blocked, so we have to unblock it if we | |
320 | want to really receive it. */ | |
29b89fe0 | 321 | #ifndef MSDOS |
a90538cb | 322 | sigunblock (sigmask (fatal_error_code)); |
29b89fe0 | 323 | #endif |
4fab758d | 324 | |
f927c5ae | 325 | kill (getpid (), fatal_error_code); |
f927c5ae | 326 | } |
271c7b7c RS |
327 | |
328 | #ifdef SIGDANGER | |
329 | ||
16c323ee | 330 | /* Handler for SIGDANGER. */ |
9af30bdf | 331 | void |
1dae0f0a | 332 | memory_warning_signal (int sig) |
271c7b7c RS |
333 | { |
334 | signal (sig, memory_warning_signal); | |
333f1b6f | 335 | SIGNAL_THREAD_CHECK (sig); |
271c7b7c RS |
336 | |
337 | malloc_warning ("Operating system warns that virtual memory is running low.\n"); | |
55796183 RS |
338 | |
339 | /* It might be unsafe to call do_auto_save now. */ | |
340 | force_auto_save_soon (); | |
271c7b7c RS |
341 | } |
342 | #endif | |
f927c5ae | 343 | \f |
7db35a48 | 344 | /* Code for dealing with Lisp access to the Unix command line. */ |
f927c5ae | 345 | |
dfcf069d | 346 | static void |
dd4c5104 | 347 | init_cmdargs (int argc, char **argv, int skip_args) |
f927c5ae JB |
348 | { |
349 | register int i; | |
74f10ca7 | 350 | Lisp_Object name, dir, handler; |
d311d28c | 351 | ptrdiff_t count = SPECPDL_INDEX (); |
213d0b1f | 352 | Lisp_Object raw_name; |
f927c5ae | 353 | |
e29f86e4 RS |
354 | initial_argv = argv; |
355 | initial_argc = argc; | |
356 | ||
213d0b1f RS |
357 | raw_name = build_string (argv[0]); |
358 | ||
359 | /* Add /: to the front of the name | |
360 | if it would otherwise be treated as magic. */ | |
74f10ca7 PE |
361 | handler = Ffind_file_name_handler (raw_name, Qt); |
362 | if (! NILP (handler)) | |
213d0b1f RS |
363 | raw_name = concat2 (build_string ("/:"), raw_name); |
364 | ||
365 | Vinvocation_name = Ffile_name_nondirectory (raw_name); | |
366 | Vinvocation_directory = Ffile_name_directory (raw_name); | |
367 | ||
ace40a69 RS |
368 | /* If we got no directory in argv[0], search PATH to find where |
369 | Emacs actually came from. */ | |
370 | if (NILP (Vinvocation_directory)) | |
371 | { | |
372 | Lisp_Object found; | |
373 | int yes = openp (Vexec_path, Vinvocation_name, | |
10c0915e | 374 | Vexec_suffixes, &found, make_number (X_OK)); |
e443f843 | 375 | if (yes == 1) |
213d0b1f RS |
376 | { |
377 | /* Add /: to the front of the name | |
378 | if it would otherwise be treated as magic. */ | |
74f10ca7 PE |
379 | handler = Ffind_file_name_handler (found, Qt); |
380 | if (! NILP (handler)) | |
213d0b1f RS |
381 | found = concat2 (build_string ("/:"), found); |
382 | Vinvocation_directory = Ffile_name_directory (found); | |
383 | } | |
ace40a69 | 384 | } |
59653951 | 385 | |
4133b300 RS |
386 | if (!NILP (Vinvocation_directory) |
387 | && NILP (Ffile_name_absolute_p (Vinvocation_directory))) | |
213d0b1f RS |
388 | /* Emacs was started with relative path, like ./emacs. |
389 | Make it absolute. */ | |
4133b300 RS |
390 | Vinvocation_directory = Fexpand_file_name (Vinvocation_directory, Qnil); |
391 | ||
07f4d123 RS |
392 | Vinstallation_directory = Qnil; |
393 | ||
394 | if (!NILP (Vinvocation_directory)) | |
395 | { | |
396 | dir = Vinvocation_directory; | |
76151e2c EZ |
397 | #ifdef WINDOWSNT |
398 | /* If we are running from the build directory, set DIR to the | |
399 | src subdirectory of the Emacs tree, like on Posix | |
400 | platforms. */ | |
401 | if (SBYTES (dir) > sizeof ("/i386/") - 1 | |
402 | && 0 == strcmp (SSDATA (dir) + SBYTES (dir) - sizeof ("/i386/") + 1, | |
403 | "/i386/")) | |
404 | dir = Fexpand_file_name (build_string ("../.."), dir); | |
405 | #else /* !WINDOWSNT */ | |
406 | #endif | |
07f4d123 RS |
407 | name = Fexpand_file_name (Vinvocation_name, dir); |
408 | while (1) | |
409 | { | |
f5ab9736 | 410 | Lisp_Object tem, lib_src_exists; |
07f4d123 RS |
411 | Lisp_Object etc_exists, info_exists; |
412 | ||
f5ab9736 RS |
413 | /* See if dir contains subdirs for use by Emacs. |
414 | Check for the ones that would exist in a build directory, | |
415 | not including lisp and info. */ | |
416 | tem = Fexpand_file_name (build_string ("lib-src"), dir); | |
417 | lib_src_exists = Ffile_exists_p (tem); | |
de004cc6 | 418 | |
70344b34 | 419 | #ifdef MSDOS |
de004cc6 RS |
420 | /* MSDOS installations frequently remove lib-src, but we still |
421 | must set installation-directory, or else info won't find | |
422 | its files (it uses the value of installation-directory). */ | |
423 | tem = Fexpand_file_name (build_string ("info"), dir); | |
424 | info_exists = Ffile_exists_p (tem); | |
70344b34 EZ |
425 | #else |
426 | info_exists = Qnil; | |
427 | #endif | |
de004cc6 RS |
428 | |
429 | if (!NILP (lib_src_exists) || !NILP (info_exists)) | |
07f4d123 | 430 | { |
f5ab9736 RS |
431 | tem = Fexpand_file_name (build_string ("etc"), dir); |
432 | etc_exists = Ffile_exists_p (tem); | |
433 | if (!NILP (etc_exists)) | |
07f4d123 | 434 | { |
f5ab9736 RS |
435 | Vinstallation_directory |
436 | = Ffile_name_as_directory (dir); | |
437 | break; | |
07f4d123 RS |
438 | } |
439 | } | |
440 | ||
441 | /* See if dir's parent contains those subdirs. */ | |
f5ab9736 RS |
442 | tem = Fexpand_file_name (build_string ("../lib-src"), dir); |
443 | lib_src_exists = Ffile_exists_p (tem); | |
de004cc6 | 444 | |
70344b34 EZ |
445 | |
446 | #ifdef MSDOS | |
447 | /* See the MSDOS commentary above. */ | |
de004cc6 RS |
448 | tem = Fexpand_file_name (build_string ("../info"), dir); |
449 | info_exists = Ffile_exists_p (tem); | |
70344b34 EZ |
450 | #else |
451 | info_exists = Qnil; | |
452 | #endif | |
de004cc6 RS |
453 | |
454 | if (!NILP (lib_src_exists) || !NILP (info_exists)) | |
07f4d123 | 455 | { |
f5ab9736 RS |
456 | tem = Fexpand_file_name (build_string ("../etc"), dir); |
457 | etc_exists = Ffile_exists_p (tem); | |
458 | if (!NILP (etc_exists)) | |
07f4d123 | 459 | { |
f5ab9736 RS |
460 | tem = Fexpand_file_name (build_string (".."), dir); |
461 | Vinstallation_directory | |
462 | = Ffile_name_as_directory (tem); | |
463 | break; | |
07f4d123 RS |
464 | } |
465 | } | |
466 | ||
467 | /* If the Emacs executable is actually a link, | |
468 | next try the dir that the link points into. */ | |
469 | tem = Ffile_symlink_p (name); | |
470 | if (!NILP (tem)) | |
471 | { | |
260ec24d | 472 | name = Fexpand_file_name (tem, dir); |
07f4d123 RS |
473 | dir = Ffile_name_directory (name); |
474 | } | |
475 | else | |
476 | break; | |
477 | } | |
478 | } | |
479 | ||
f927c5ae JB |
480 | Vcommand_line_args = Qnil; |
481 | ||
482 | for (i = argc - 1; i >= 0; i--) | |
483 | { | |
484 | if (i == 0 || i > skip_args) | |
a520393d KH |
485 | /* For the moment, we keep arguments as is in unibyte strings. |
486 | They are decoded in the function command-line after we know | |
487 | locale-coding-system. */ | |
f927c5ae | 488 | Vcommand_line_args |
68db37aa | 489 | = Fcons (make_unibyte_string (argv[i], strlen (argv[i])), |
a520393d | 490 | Vcommand_line_args); |
f927c5ae | 491 | } |
213d0b1f RS |
492 | |
493 | unbind_to (count, Qnil); | |
f927c5ae | 494 | } |
59653951 JB |
495 | |
496 | DEFUN ("invocation-name", Finvocation_name, Sinvocation_name, 0, 0, 0, | |
7db35a48 PJ |
497 | doc: /* Return the program name that was used to run Emacs. |
498 | Any directory names are omitted. */) | |
5842a27b | 499 | (void) |
59653951 JB |
500 | { |
501 | return Fcopy_sequence (Vinvocation_name); | |
502 | } | |
503 | ||
ace40a69 | 504 | DEFUN ("invocation-directory", Finvocation_directory, Sinvocation_directory, |
7db35a48 PJ |
505 | 0, 0, 0, |
506 | doc: /* Return the directory name in which the Emacs executable was located. */) | |
5842a27b | 507 | (void) |
ace40a69 RS |
508 | { |
509 | return Fcopy_sequence (Vinvocation_directory); | |
510 | } | |
511 | ||
f927c5ae | 512 | \f |
0269dedb RS |
513 | #ifdef HAVE_TZSET |
514 | /* A valid but unlikely value for the TZ environment value. | |
515 | It is OK (though a bit slower) if the user actually chooses this value. */ | |
516 | static char dump_tz[] = "UtC0"; | |
517 | #endif | |
518 | ||
a90538cb | 519 | #ifndef ORDINARY_LINK |
efd241cc RS |
520 | /* We don't include crtbegin.o and crtend.o in the link, |
521 | so these functions and variables might be missed. | |
522 | Provide dummy definitions to avoid error. | |
523 | (We don't have any real constructors or destructors.) */ | |
524 | #ifdef __GNUC__ | |
244fc23d PE |
525 | |
526 | /* Define a dummy function F. Declare F too, to pacify gcc | |
527 | -Wmissing-prototypes. */ | |
35f08c38 | 528 | #define DEFINE_DUMMY_FUNCTION(f) \ |
5994c183 | 529 | void f (void) ATTRIBUTE_CONST EXTERNALLY_VISIBLE; void f (void) {} |
244fc23d | 530 | |
46e65b73 | 531 | #ifndef GCC_CTORS_IN_LIBC |
244fc23d PE |
532 | DEFINE_DUMMY_FUNCTION (__do_global_ctors) |
533 | DEFINE_DUMMY_FUNCTION (__do_global_ctors_aux) | |
534 | DEFINE_DUMMY_FUNCTION (__do_global_dtors) | |
554061d8 | 535 | /* GNU/Linux has a bug in its library; avoid an error. */ |
8a2a6032 | 536 | #ifndef GNU_LINUX |
35f08c38 | 537 | char * __CTOR_LIST__[2] EXTERNALLY_VISIBLE = { (char *) (-1), 0 }; |
64c1864a | 538 | #endif |
35f08c38 | 539 | char * __DTOR_LIST__[2] EXTERNALLY_VISIBLE = { (char *) (-1), 0 }; |
46e65b73 | 540 | #endif /* GCC_CTORS_IN_LIBC */ |
244fc23d | 541 | DEFINE_DUMMY_FUNCTION (__main) |
efd241cc | 542 | #endif /* __GNUC__ */ |
a90538cb | 543 | #endif /* ORDINARY_LINK */ |
efd241cc | 544 | |
e2925360 KH |
545 | /* Test whether the next argument in ARGV matches SSTR or a prefix of |
546 | LSTR (at least MINLEN characters). If so, then if VALPTR is non-null | |
547 | (the argument is supposed to have a value) store in *VALPTR either | |
548 | the next argument or the portion of this one after the equal sign. | |
549 | ARGV is read starting at position *SKIPPTR; this index is advanced | |
550 | by the number of arguments used. | |
551 | ||
552 | Too bad we can't just use getopt for all of this, but we don't have | |
553 | enough information to do it right. */ | |
081bef73 | 554 | |
1882aa38 | 555 | static bool |
62973b41 JB |
556 | argmatch (char **argv, int argc, const char *sstr, const char *lstr, |
557 | int minlen, char **valptr, int *skipptr) | |
e2925360 | 558 | { |
6bbd7a29 | 559 | char *p = NULL; |
0b963a93 | 560 | ptrdiff_t arglen; |
df6530f8 RS |
561 | char *arg; |
562 | ||
563 | /* Don't access argv[argc]; give up in advance. */ | |
564 | if (argc <= *skipptr + 1) | |
565 | return 0; | |
566 | ||
567 | arg = argv[*skipptr+1]; | |
e2925360 KH |
568 | if (arg == NULL) |
569 | return 0; | |
570 | if (strcmp (arg, sstr) == 0) | |
571 | { | |
572 | if (valptr != NULL) | |
573 | { | |
574 | *valptr = argv[*skipptr+2]; | |
575 | *skipptr += 2; | |
576 | } | |
577 | else | |
578 | *skipptr += 1; | |
579 | return 1; | |
580 | } | |
8966b757 | 581 | arglen = (valptr != NULL && (p = strchr (arg, '=')) != NULL |
e2925360 | 582 | ? p - arg : strlen (arg)); |
c03e1113 | 583 | if (lstr == 0 || arglen < minlen || strncmp (arg, lstr, arglen) != 0) |
e2925360 KH |
584 | return 0; |
585 | else if (valptr == NULL) | |
586 | { | |
587 | *skipptr += 1; | |
588 | return 1; | |
589 | } | |
590 | else if (p != NULL) | |
591 | { | |
592 | *valptr = p+1; | |
593 | *skipptr += 1; | |
594 | return 1; | |
595 | } | |
596 | else if (argv[*skipptr+2] != NULL) | |
597 | { | |
598 | *valptr = argv[*skipptr+2]; | |
599 | *skipptr += 2; | |
600 | return 1; | |
601 | } | |
602 | else | |
603 | { | |
604 | return 0; | |
605 | } | |
606 | } | |
607 | ||
b6779252 | 608 | #ifdef DOUG_LEA_MALLOC |
f927c5ae | 609 | |
b6779252 KH |
610 | /* malloc can be invoked even before main (e.g. by the dynamic |
611 | linker), so the dumped malloc state must be restored as early as | |
612 | possible using this special hook. */ | |
613 | ||
614 | static void | |
dd4c5104 | 615 | malloc_initialize_hook (void) |
b6779252 | 616 | { |
15aaf1b5 RS |
617 | if (initialized) |
618 | { | |
7c9cd446 AS |
619 | if (!malloc_using_checking) |
620 | /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be | |
621 | ignored if the heap to be restored was constructed without | |
d942e12a AS |
622 | malloc checking. Can't use unsetenv, since that calls malloc. */ |
623 | { | |
624 | char **p; | |
625 | ||
a57c4026 | 626 | for (p = environ; p && *p; p++) |
d942e12a AS |
627 | if (strncmp (*p, "MALLOC_CHECK_=", 14) == 0) |
628 | { | |
629 | do | |
630 | *p = p[1]; | |
631 | while (*++p); | |
632 | break; | |
633 | } | |
634 | } | |
b6779252 | 635 | |
15aaf1b5 | 636 | malloc_set_state (malloc_state_ptr); |
68db37aa | 637 | #ifndef XMALLOC_OVERRUN_CHECK |
15aaf1b5 | 638 | free (malloc_state_ptr); |
68db37aa | 639 | #endif |
15aaf1b5 | 640 | } |
7c9cd446 | 641 | else |
dede2792 JD |
642 | { |
643 | if (my_heap_start == 0) | |
644 | my_heap_start = sbrk (0); | |
645 | malloc_using_checking = getenv ("MALLOC_CHECK_") != NULL; | |
646 | } | |
b6779252 KH |
647 | } |
648 | ||
698d32e2 | 649 | void (*__malloc_initialize_hook) (void) EXTERNALLY_VISIBLE = malloc_initialize_hook; |
b6779252 KH |
650 | |
651 | #endif /* DOUG_LEA_MALLOC */ | |
652 | ||
d883731c | 653 | |
b6779252 KH |
654 | /* ARGSUSED */ |
655 | int | |
7c2fb837 | 656 | main (int argc, char **argv) |
b6779252 | 657 | { |
2313132f | 658 | #if GC_MARK_STACK |
39ec21ea GM |
659 | Lisp_Object dummy; |
660 | #endif | |
b6779252 | 661 | char stack_bottom_variable; |
1882aa38 | 662 | bool do_initial_setlocale; |
b6779252 | 663 | int skip_args = 0; |
b6779252 KH |
664 | #ifdef HAVE_SETRLIMIT |
665 | struct rlimit rlim; | |
666 | #endif | |
1882aa38 | 667 | bool no_loadup = 0; |
6e910e07 | 668 | char *junk = 0; |
4ff029f6 | 669 | char *dname_arg = 0; |
b3243e6f AR |
670 | #ifdef NS_IMPL_COCOA |
671 | char dname_arg2[80]; | |
672 | #endif | |
f63d0028 | 673 | char *ch_to_dir; |
b6779252 | 674 | |
2313132f | 675 | #if GC_MARK_STACK |
39ec21ea GM |
676 | stack_base = &dummy; |
677 | #endif | |
678 | ||
a4ef73c8 CY |
679 | #if defined (USE_GTK) && defined (G_SLICE_ALWAYS_MALLOC) |
680 | /* This is used by the Cygwin build. */ | |
681 | setenv ("G_SLICE", "always-malloc", 1); | |
682 | #endif | |
683 | ||
b312a492 | 684 | #ifdef GNU_LINUX |
dede2792 JD |
685 | if (!initialized) |
686 | { | |
687 | extern char my_endbss[]; | |
688 | extern char *my_endbss_static; | |
689 | ||
690 | if (my_heap_start == 0) | |
691 | my_heap_start = sbrk (0); | |
692 | ||
693 | heap_bss_diff = (char *)my_heap_start - max (my_endbss, my_endbss_static); | |
694 | } | |
b312a492 | 695 | #endif |
dede2792 | 696 | |
d785cf9e RS |
697 | #ifdef RUN_TIME_REMAP |
698 | if (initialized) | |
699 | run_time_remap (argv[0]); | |
700 | #endif | |
701 | ||
14145fa3 AR |
702 | /* If using unexmacosx.c (set by s/darwin.h), we must do this. */ |
703 | #ifdef DARWIN_OS | |
e0f712ba AC |
704 | if (!initialized) |
705 | unexec_init_emacs_zone (); | |
706 | #endif | |
707 | ||
081bef73 | 708 | sort_args (argc, argv); |
956e3c7e RS |
709 | argc = 0; |
710 | while (argv[argc]) argc++; | |
081bef73 | 711 | |
8c5ff6dd | 712 | if (argmatch (argv, argc, "-version", "--version", 3, NULL, &skip_args)) |
1702afef | 713 | { |
8c5ff6dd KR |
714 | const char *version, *copyright; |
715 | if (initialized) | |
5cf9ca93 | 716 | { |
8c5ff6dd KR |
717 | Lisp_Object tem, tem2; |
718 | tem = Fsymbol_value (intern_c_string ("emacs-version")); | |
719 | tem2 = Fsymbol_value (intern_c_string ("emacs-copyright")); | |
720 | if (!STRINGP (tem)) | |
721 | { | |
722 | fprintf (stderr, "Invalid value of `emacs-version'\n"); | |
723 | exit (1); | |
724 | } | |
725 | if (!STRINGP (tem2)) | |
726 | { | |
727 | fprintf (stderr, "Invalid value of `emacs-copyright'\n"); | |
728 | exit (1); | |
729 | } | |
730 | else | |
731 | { | |
42a5b22f PE |
732 | version = SSDATA (tem); |
733 | copyright = SSDATA (tem2); | |
8c5ff6dd | 734 | } |
5cf9ca93 | 735 | } |
1702afef RS |
736 | else |
737 | { | |
8c5ff6dd KR |
738 | version = emacs_version; |
739 | copyright = emacs_copyright; | |
1702afef | 740 | } |
8c5ff6dd KR |
741 | printf ("GNU Emacs %s\n", version); |
742 | printf ("%s\n", copyright); | |
743 | printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n"); | |
744 | printf ("You may redistribute copies of Emacs\n"); | |
745 | printf ("under the terms of the GNU General Public License.\n"); | |
746 | printf ("For more information about these matters, "); | |
747 | printf ("see the file named COPYING.\n"); | |
748 | exit (0); | |
1702afef | 749 | } |
947f5e01 JM |
750 | |
751 | if (argmatch (argv, argc, "-chdir", "--chdir", 4, &ch_to_dir, &skip_args)) | |
752 | if (chdir (ch_to_dir) == -1) | |
753 | { | |
754 | fprintf (stderr, "%s: Can't chdir to %s: %s\n", | |
755 | argv[0], ch_to_dir, strerror (errno)); | |
756 | exit (1); | |
757 | } | |
f63d0028 | 758 | |
1702afef | 759 | |
dede2792 | 760 | #ifdef HAVE_PERSONALITY_LINUX32 |
dede2792 JD |
761 | if (!initialized |
762 | && (strcmp (argv[argc-1], "dump") == 0 | |
763 | || strcmp (argv[argc-1], "bootstrap") == 0) | |
fd75ddb2 | 764 | && ! getenv ("EMACS_HEAP_EXEC")) |
dede2792 | 765 | { |
42ca4633 | 766 | static char heapexec[] = "EMACS_HEAP_EXEC=true"; |
fd75ddb2 | 767 | /* Set this so we only do this once. */ |
5e617bc2 | 768 | putenv (heapexec); |
711877f3 | 769 | |
fd75ddb2 JD |
770 | /* A flag to turn off address randomization which is introduced |
771 | in linux kernel shipped with fedora core 4 */ | |
711877f3 | 772 | #define ADD_NO_RANDOMIZE 0x0040000 |
fd75ddb2 | 773 | personality (PER_LINUX32 | ADD_NO_RANDOMIZE); |
711877f3 MY |
774 | #undef ADD_NO_RANDOMIZE |
775 | ||
fd75ddb2 | 776 | execvp (argv[0], argv); |
dede2792 | 777 | |
fd75ddb2 JD |
778 | /* If the exec fails, try to dump anyway. */ |
779 | perror ("execvp"); | |
dede2792 JD |
780 | } |
781 | #endif /* HAVE_PERSONALITY_LINUX32 */ | |
782 | ||
ea2acec5 | 783 | #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK) |
6c2935e9 RS |
784 | /* Extend the stack space available. |
785 | Don't do that if dumping, since some systems (e.g. DJGPP) | |
786 | might define a smaller stack limit at that time. */ | |
787 | if (1 | |
788 | #ifndef CANNOT_DUMP | |
789 | && (!noninteractive || initialized) | |
790 | #endif | |
791 | && !getrlimit (RLIMIT_STACK, &rlim)) | |
53c58b5d | 792 | { |
509a8fcd | 793 | long newlim; |
fa8459a3 | 794 | extern size_t re_max_failures; |
03effc23 KH |
795 | /* Approximate the amount regex.c needs per unit of re_max_failures. */ |
796 | int ratio = 20 * sizeof (char *); | |
797 | /* Then add 33% to cover the size of the smaller stacks that regex.c | |
798 | successively allocates and discards, on its way to the maximum. */ | |
799 | ratio += ratio / 3; | |
800 | /* Add in some extra to cover | |
801 | what we're likely to use for other reasons. */ | |
802 | newlim = re_max_failures * ratio + 200000; | |
d0381a7f RS |
803 | #ifdef __NetBSD__ |
804 | /* NetBSD (at least NetBSD 1.2G and former) has a bug in its | |
805 | stack allocation routine for new process that the allocation | |
806 | fails if stack limit is not on page boundary. So, round up the | |
807 | new limit to page boundary. */ | |
5e617bc2 | 808 | newlim = (newlim + getpagesize () - 1) / getpagesize () * getpagesize (); |
d0381a7f | 809 | #endif |
509a8fcd | 810 | if (newlim > rlim.rlim_max) |
6c2935e9 RS |
811 | { |
812 | newlim = rlim.rlim_max; | |
03effc23 KH |
813 | /* Don't let regex.c overflow the stack we have. */ |
814 | re_max_failures = (newlim - 200000) / ratio; | |
6c2935e9 | 815 | } |
509a8fcd RS |
816 | if (rlim.rlim_cur < newlim) |
817 | rlim.rlim_cur = newlim; | |
818 | ||
53c58b5d RS |
819 | setrlimit (RLIMIT_STACK, &rlim); |
820 | } | |
ea2acec5 | 821 | #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */ |
53c58b5d | 822 | |
f927c5ae JB |
823 | /* Record (approximately) where the stack begins. */ |
824 | stack_bottom = &stack_bottom_variable; | |
825 | ||
f927c5ae | 826 | clearerr (stdin); |
9ae8f997 | 827 | |
f927c5ae | 828 | #ifndef SYSTEM_MALLOC |
bf7f4e90 RS |
829 | /* Arrange to get warning messages as memory fills up. */ |
830 | memory_warnings (0, malloc_warning); | |
9ac0d9e0 | 831 | |
f5a3c8c4 AI |
832 | /* Call malloc at least once, to run the initial __malloc_hook. |
833 | Also call realloc and free for consistency. */ | |
834 | free (realloc (malloc (4), 4)); | |
bf7f4e90 | 835 | |
06ca62eb | 836 | # ifndef SYNC_INPUT |
bf7f4e90 RS |
837 | /* Arrange to disable interrupt input inside malloc etc. */ |
838 | uninterrupt_malloc (); | |
06ca62eb | 839 | # endif /* not SYNC_INPUT */ |
f927c5ae JB |
840 | #endif /* not SYSTEM_MALLOC */ |
841 | ||
3e9de9f6 | 842 | #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD |
333f1b6f | 843 | main_thread = pthread_self (); |
3e9de9f6 | 844 | #endif /* FORWARD_SIGNAL_TO_MAIN_THREAD */ |
333f1b6f | 845 | |
edd3ff1d | 846 | #if defined (MSDOS) || defined (WINDOWSNT) |
29b89fe0 RS |
847 | /* We do all file input/output as binary files. When we need to translate |
848 | newlines, we do that manually. */ | |
849 | _fmode = O_BINARY; | |
edd3ff1d | 850 | #endif /* MSDOS || WINDOWSNT */ |
18198bb2 | 851 | |
edd3ff1d | 852 | #ifdef MSDOS |
18198bb2 RS |
853 | if (!isatty (fileno (stdin))) |
854 | setmode (fileno (stdin), O_BINARY); | |
855 | if (!isatty (fileno (stdout))) | |
856 | { | |
857 | fflush (stdout); | |
858 | setmode (fileno (stdout), O_BINARY); | |
859 | } | |
29b89fe0 RS |
860 | #endif /* MSDOS */ |
861 | ||
68c45bf0 PE |
862 | /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case. |
863 | The build procedure uses this while dumping, to ensure that the | |
864 | dumped Emacs does not have its system locale tables initialized, | |
865 | as that might cause screwups when the dumped Emacs starts up. */ | |
866 | { | |
867 | char *lc_all = getenv ("LC_ALL"); | |
868 | do_initial_setlocale = ! lc_all || strcmp (lc_all, "C"); | |
869 | } | |
870 | ||
871 | /* Set locale now, so that initial error messages are localized properly. | |
872 | fixup_locale must wait until later, since it builds strings. */ | |
873 | if (do_initial_setlocale) | |
874 | setlocale (LC_ALL, ""); | |
875 | ||
f927c5ae JB |
876 | inhibit_window_system = 0; |
877 | ||
7db35a48 | 878 | /* Handle the -t switch, which specifies filename to use as terminal. */ |
956e3c7e RS |
879 | while (1) |
880 | { | |
881 | char *term; | |
882 | if (argmatch (argv, argc, "-t", "--terminal", 4, &term, &skip_args)) | |
883 | { | |
884 | int result; | |
68c45bf0 PE |
885 | emacs_close (0); |
886 | emacs_close (1); | |
887 | result = emacs_open (term, O_RDWR, 0); | |
9055082e | 888 | if (result < 0 || dup (0) < 0) |
956e3c7e RS |
889 | { |
890 | char *errstring = strerror (errno); | |
186486eb | 891 | fprintf (stderr, "%s: %s: %s\n", argv[0], term, errstring); |
956e3c7e RS |
892 | exit (1); |
893 | } | |
956e3c7e RS |
894 | if (! isatty (0)) |
895 | { | |
186486eb | 896 | fprintf (stderr, "%s: %s: not a tty\n", argv[0], term); |
956e3c7e RS |
897 | exit (1); |
898 | } | |
899 | fprintf (stderr, "Using %s\n", term); | |
8ba50e1a | 900 | #ifdef HAVE_WINDOW_SYSTEM |
956e3c7e | 901 | inhibit_window_system = 1; /* -t => -nw */ |
f927c5ae | 902 | #endif |
956e3c7e RS |
903 | } |
904 | else | |
905 | break; | |
906 | } | |
907 | ||
400d6fa9 | 908 | /* Command line option --no-windows is deprecated and thus not mentioned |
333f9019 | 909 | in the manual and usage information. */ |
400d6fa9 PJ |
910 | if (argmatch (argv, argc, "-nw", "--no-window-system", 6, NULL, &skip_args) |
911 | || argmatch (argv, argc, "-nw", "--no-windows", 6, NULL, &skip_args)) | |
e2925360 | 912 | inhibit_window_system = 1; |
f927c5ae | 913 | |
e2925360 | 914 | /* Handle the -batch switch, which means don't do interactive display. */ |
f927c5ae | 915 | noninteractive = 0; |
df6530f8 | 916 | if (argmatch (argv, argc, "-batch", "--batch", 5, NULL, &skip_args)) |
55f4edbc RS |
917 | { |
918 | noninteractive = 1; | |
919 | Vundo_outer_limit = Qnil; | |
920 | } | |
6e910e07 RS |
921 | if (argmatch (argv, argc, "-script", "--script", 3, &junk, &skip_args)) |
922 | { | |
923 | noninteractive = 1; /* Set batch mode. */ | |
21a4ff8e | 924 | /* Convert --script to -scriptload, un-skip it, and sort again |
e09b9180 | 925 | so that it will be handled in proper sequence. */ |
a09a5b5b | 926 | /* FIXME broken for --script=FILE - is that supposed to work? */ |
c03cd23f | 927 | argv[skip_args - 1] = (char *) "-scriptload"; |
6e910e07 RS |
928 | skip_args -= 2; |
929 | sort_args (argc, argv); | |
930 | } | |
e2925360 | 931 | |
7db35a48 | 932 | /* Handle the --help option, which gives a usage message. */ |
df6530f8 | 933 | if (argmatch (argv, argc, "-help", "--help", 3, NULL, &skip_args)) |
f927c5ae | 934 | { |
6b61353c KH |
935 | printf (USAGE1, argv[0], USAGE2); |
936 | printf (USAGE3); | |
17284745 | 937 | printf (USAGE4); |
e2925360 | 938 | exit (0); |
f927c5ae JB |
939 | } |
940 | ||
4ff029f6 DN |
941 | if (argmatch (argv, argc, "-daemon", "--daemon", 5, NULL, &skip_args) |
942 | || argmatch (argv, argc, "-daemon", "--daemon", 5, &dname_arg, &skip_args)) | |
eab2ee89 | 943 | { |
9d29095c | 944 | #ifndef DOS_NT |
5790ef40 DN |
945 | pid_t f; |
946 | ||
947 | /* Start as a daemon: fork a new child process which will run the | |
948 | rest of the initialization code, then exit. | |
949 | ||
fc012771 SM |
950 | Detaching a daemon requires the following steps: |
951 | - fork | |
952 | - setsid | |
953 | - exit the parent | |
954 | - close the tty file-descriptors | |
955 | ||
956 | We only want to do the last 2 steps once the daemon is ready to | |
957 | serve requests, i.e. after loading .emacs (initialization). | |
958 | OTOH initialization may start subprocesses (e.g. ispell) and these | |
959 | should be run from the proper process (the one that will end up | |
960 | running as daemon) and with the proper "session id" in order for | |
961 | them to keep working after detaching, so fork and setsid need to be | |
962 | performed before initialization. | |
963 | ||
5790ef40 DN |
964 | We want to avoid exiting before the server socket is ready, so |
965 | use a pipe for synchronization. The parent waits for the child | |
966 | to close its end of the pipe (using `daemon-initialized') | |
967 | before exiting. */ | |
968 | if (pipe (daemon_pipe) == -1) | |
969 | { | |
970 | fprintf (stderr, "Cannot pipe!\n"); | |
971 | exit (1); | |
972 | } | |
973 | ||
b3243e6f | 974 | #ifndef NS_IMPL_COCOA |
8b3115e7 DN |
975 | #ifdef USE_GTK |
976 | fprintf (stderr, "\nWarning: due to a long standing Gtk+ bug\nhttp://bugzilla.gnome.org/show_bug.cgi?id=85715\n\ | |
977 | Emacs might crash when run in daemon mode and the X11 connection is unexpectedly lost.\n\ | |
978 | Using an Emacs configured with --with-x-toolkit=lucid does not have this problem.\n"); | |
979 | #endif | |
5790ef40 | 980 | f = fork (); |
cfa6accb AR |
981 | #else /* NS_IMPL_COCOA */ |
982 | /* Under Cocoa we must do fork+exec as CoreFoundation lib fails in | |
983 | forked process: http://developer.apple.com/ReleaseNotes/ | |
984 | CoreFoundation/CoreFoundation.html) | |
b3243e6f AR |
985 | We mark being in the exec'd process by a daemon name argument of |
986 | form "--daemon=\nFD0,FD1\nNAME" where FD are the pipe file descriptors, | |
987 | NAME is the original daemon name, if any. */ | |
988 | if (!dname_arg || !strchr (dname_arg, '\n')) | |
989 | f = fork (); /* in orig */ | |
990 | else | |
991 | f = 0; /* in exec'd */ | |
cfa6accb | 992 | #endif /* NS_IMPL_COCOA */ |
eab2ee89 | 993 | if (f > 0) |
5790ef40 DN |
994 | { |
995 | int retval; | |
996 | char buf[1]; | |
997 | ||
998 | /* Close unused writing end of the pipe. */ | |
999 | close (daemon_pipe[1]); | |
1000 | ||
1001 | /* Just wait for the child to close its end of the pipe. */ | |
1002 | do | |
1003 | { | |
1004 | retval = read (daemon_pipe[0], &buf, 1); | |
1005 | } | |
1006 | while (retval == -1 && errno == EINTR); | |
1007 | ||
1008 | if (retval < 0) | |
1009 | { | |
1010 | fprintf (stderr, "Error reading status from child\n"); | |
1011 | exit (1); | |
1012 | } | |
fd95644b DN |
1013 | else if (retval == 0) |
1014 | { | |
1015 | fprintf (stderr, "Error: server did not start correctly\n"); | |
1016 | exit (1); | |
1017 | } | |
5790ef40 DN |
1018 | |
1019 | close (daemon_pipe[0]); | |
1020 | exit (0); | |
1021 | } | |
eab2ee89 DN |
1022 | if (f < 0) |
1023 | { | |
1024 | fprintf (stderr, "Cannot fork!\n"); | |
9d0a6e42 | 1025 | exit (1); |
eab2ee89 DN |
1026 | } |
1027 | ||
b3243e6f AR |
1028 | #ifdef NS_IMPL_COCOA |
1029 | { | |
cfa6accb | 1030 | /* In orig process, forked as child, OR in exec'd. */ |
b3243e6f | 1031 | if (!dname_arg || !strchr (dname_arg, '\n')) |
cfa6accb | 1032 | { /* In orig, child: now exec w/special daemon name. */ |
b3243e6f | 1033 | char fdStr[80]; |
66c6fdd5 PE |
1034 | int fdStrlen = |
1035 | snprintf (fdStr, sizeof fdStr, | |
1036 | "--daemon=\n%d,%d\n%s", daemon_pipe[0], | |
1037 | daemon_pipe[1], dname_arg ? dname_arg : ""); | |
b3243e6f | 1038 | |
66c6fdd5 | 1039 | if (! (0 <= fdStrlen && fdStrlen < sizeof fdStr)) |
b3243e6f AR |
1040 | { |
1041 | fprintf (stderr, "daemon: child name too long\n"); | |
1042 | exit (1); | |
1043 | } | |
1044 | ||
b3243e6f AR |
1045 | argv[skip_args] = fdStr; |
1046 | ||
1047 | execv (argv[0], argv); | |
cff11156 | 1048 | fprintf (stderr, "emacs daemon: exec failed: %d\n", errno); |
b3243e6f AR |
1049 | exit (1); |
1050 | } | |
1051 | ||
cfa6accb | 1052 | /* In exec'd: parse special dname into pipe and name info. */ |
b3243e6f AR |
1053 | if (!dname_arg || !strchr (dname_arg, '\n') |
1054 | || strlen (dname_arg) < 1 || strlen (dname_arg) > 70) | |
1055 | { | |
1056 | fprintf (stderr, "emacs daemon: daemon name absent or too long\n"); | |
5e617bc2 | 1057 | exit (1); |
b3243e6f AR |
1058 | } |
1059 | dname_arg2[0] = '\0'; | |
1060 | sscanf (dname_arg, "\n%d,%d\n%s", &(daemon_pipe[0]), &(daemon_pipe[1]), | |
1061 | dname_arg2); | |
0b963a93 | 1062 | dname_arg = *dname_arg2 ? dname_arg2 : NULL; |
b3243e6f | 1063 | } |
cfa6accb | 1064 | #endif /* NS_IMPL_COCOA */ |
b3243e6f | 1065 | |
4ff029f6 DN |
1066 | if (dname_arg) |
1067 | daemon_name = xstrdup (dname_arg); | |
5790ef40 DN |
1068 | /* Close unused reading end of the pipe. */ |
1069 | close (daemon_pipe[0]); | |
7c19d3ae DN |
1070 | /* Make sure that the used end of the pipe is closed on exec, so |
1071 | that it is not accessible to programs started from .emacs. */ | |
1072 | fcntl (daemon_pipe[1], F_SETFD, FD_CLOEXEC); | |
1073 | ||
eab2ee89 | 1074 | #ifdef HAVE_SETSID |
5e617bc2 | 1075 | setsid (); |
eab2ee89 | 1076 | #endif |
eab2ee89 | 1077 | #else /* DOS_NT */ |
9d29095c DN |
1078 | fprintf (stderr, "This platform does not support the -daemon flag.\n"); |
1079 | exit (1); | |
eab2ee89 | 1080 | #endif /* DOS_NT */ |
9d29095c | 1081 | } |
eab2ee89 | 1082 | |
edb85f59 RS |
1083 | if (! noninteractive) |
1084 | { | |
edb85f59 RS |
1085 | #if defined (USG5) && defined (INTERRUPT_INPUT) |
1086 | setpgrp (); | |
1087 | #endif | |
ae9e757a | 1088 | #if defined (HAVE_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC) |
5467331d | 1089 | { |
f57e2426 | 1090 | extern void malloc_enable_thread (void); |
5467331d YM |
1091 | |
1092 | malloc_enable_thread (); | |
1093 | } | |
edb85f59 RS |
1094 | #endif |
1095 | } | |
1096 | ||
fb8e9847 | 1097 | init_signals (); |
fb8e9847 | 1098 | |
1efa2983 KH |
1099 | /* Don't catch SIGHUP if dumping. */ |
1100 | if (1 | |
1101 | #ifndef CANNOT_DUMP | |
1102 | && initialized | |
1103 | #endif | |
1104 | ) | |
1105 | { | |
57e3d22a | 1106 | sigblock (sigmask (SIGHUP)); |
1efa2983 KH |
1107 | /* In --batch mode, don't catch SIGHUP if already ignored. |
1108 | That makes nohup work. */ | |
1109 | if (! noninteractive | |
1110 | || signal (SIGHUP, SIG_IGN) != SIG_IGN) | |
1111 | signal (SIGHUP, fatal_error_signal); | |
57e3d22a | 1112 | sigunblock (sigmask (SIGHUP)); |
1efa2983 KH |
1113 | } |
1114 | ||
f927c5ae JB |
1115 | if ( |
1116 | #ifndef CANNOT_DUMP | |
1117 | ! noninteractive || initialized | |
1118 | #else | |
1119 | 1 | |
1120 | #endif | |
1121 | ) | |
1122 | { | |
1efa2983 | 1123 | /* Don't catch these signals in batch mode if dumping. |
f927c5ae JB |
1124 | On some machines, this sets static data that would make |
1125 | signal fail to work right when the dumped Emacs is run. */ | |
f927c5ae JB |
1126 | signal (SIGQUIT, fatal_error_signal); |
1127 | signal (SIGILL, fatal_error_signal); | |
1128 | signal (SIGTRAP, fatal_error_signal); | |
7317d9e8 | 1129 | #ifdef SIGUSR1 |
71b28d05 | 1130 | add_user_signal (SIGUSR1, "sigusr1"); |
7317d9e8 | 1131 | #endif |
8247c60d | 1132 | #ifdef SIGUSR2 |
71b28d05 | 1133 | add_user_signal (SIGUSR2, "sigusr2"); |
7317d9e8 | 1134 | #endif |
99e372cd RS |
1135 | #ifdef SIGABRT |
1136 | signal (SIGABRT, fatal_error_signal); | |
1137 | #endif | |
1138 | #ifdef SIGHWE | |
1139 | signal (SIGHWE, fatal_error_signal); | |
1140 | #endif | |
1141 | #ifdef SIGPRE | |
1142 | signal (SIGPRE, fatal_error_signal); | |
1143 | #endif | |
1144 | #ifdef SIGORE | |
1145 | signal (SIGORE, fatal_error_signal); | |
1146 | #endif | |
1147 | #ifdef SIGUME | |
1148 | signal (SIGUME, fatal_error_signal); | |
1149 | #endif | |
1150 | #ifdef SIGDLK | |
1151 | signal (SIGDLK, fatal_error_signal); | |
1152 | #endif | |
1153 | #ifdef SIGCPULIM | |
1154 | signal (SIGCPULIM, fatal_error_signal); | |
1155 | #endif | |
a90538cb JB |
1156 | #ifdef SIGIOT |
1157 | /* This is missing on some systems - OS/2, for example. */ | |
f927c5ae | 1158 | signal (SIGIOT, fatal_error_signal); |
a90538cb | 1159 | #endif |
f927c5ae JB |
1160 | #ifdef SIGEMT |
1161 | signal (SIGEMT, fatal_error_signal); | |
1162 | #endif | |
1163 | signal (SIGFPE, fatal_error_signal); | |
00eaaa32 | 1164 | #ifdef SIGBUS |
f927c5ae | 1165 | signal (SIGBUS, fatal_error_signal); |
00eaaa32 | 1166 | #endif |
f927c5ae | 1167 | signal (SIGSEGV, fatal_error_signal); |
00eaaa32 | 1168 | #ifdef SIGSYS |
f927c5ae | 1169 | signal (SIGSYS, fatal_error_signal); |
9c524fcb | 1170 | #endif |
9c524fcb GM |
1171 | /* May need special treatment on MS-Windows. See |
1172 | http://lists.gnu.org/archive/html/emacs-devel/2010-09/msg01062.html | |
1173 | Please update the doc of kill-emacs, kill-emacs-hook, and | |
1174 | NEWS if you change this. | |
1175 | */ | |
383ebd15 | 1176 | if (noninteractive) signal (SIGINT, fatal_error_signal); |
f927c5ae JB |
1177 | signal (SIGTERM, fatal_error_signal); |
1178 | #ifdef SIGXCPU | |
1179 | signal (SIGXCPU, fatal_error_signal); | |
1180 | #endif | |
1181 | #ifdef SIGXFSZ | |
1182 | signal (SIGXFSZ, fatal_error_signal); | |
1183 | #endif /* SIGXFSZ */ | |
1184 | ||
271c7b7c RS |
1185 | #ifdef SIGDANGER |
1186 | /* This just means available memory is getting low. */ | |
1187 | signal (SIGDANGER, memory_warning_signal); | |
1188 | #endif | |
1189 | ||
f927c5ae | 1190 | #ifdef AIX |
56e034fa RS |
1191 | /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */ |
1192 | signal (SIGXCPU, fatal_error_signal); | |
f927c5ae JB |
1193 | signal (SIGIOINT, fatal_error_signal); |
1194 | signal (SIGGRANT, fatal_error_signal); | |
1195 | signal (SIGRETRACT, fatal_error_signal); | |
1196 | signal (SIGSOUND, fatal_error_signal); | |
1197 | signal (SIGMSG, fatal_error_signal); | |
1198 | #endif /* AIX */ | |
1199 | } | |
1200 | ||
1201 | noninteractive1 = noninteractive; | |
1202 | ||
7db35a48 | 1203 | /* Perform basic initializations (not merely interning symbols). */ |
f927c5ae JB |
1204 | |
1205 | if (!initialized) | |
1206 | { | |
1207 | init_alloc_once (); | |
1208 | init_obarray (); | |
1209 | init_eval_once (); | |
270ce821 KH |
1210 | init_charset_once (); |
1211 | init_coding_once (); | |
f927c5ae | 1212 | init_syntax_once (); /* Create standard syntax table. */ |
270ce821 | 1213 | init_category_once (); /* Create standard category table. */ |
7db35a48 | 1214 | /* Must be done before init_buffer. */ |
f927c5ae | 1215 | init_casetab_once (); |
7db35a48 PJ |
1216 | init_buffer_once (); /* Create buffer table and some buffers. */ |
1217 | init_minibuf_once (); /* Create list of minibuffers. */ | |
1218 | /* Must precede init_window_once. */ | |
1219 | ||
90d920b6 GM |
1220 | /* Call syms_of_xfaces before init_window_once because that |
1221 | function creates Vterminal_frame. Termcap frames now use | |
1222 | faces, and the face implementation uses some symbols as | |
1223 | face names. */ | |
90d920b6 | 1224 | syms_of_xfaces (); |
4ea81208 KL |
1225 | /* XXX syms_of_keyboard uses some symbols in keymap.c. It would |
1226 | be better to arrange things not to have this dependency. */ | |
1227 | syms_of_keymap (); | |
7a18af49 KR |
1228 | /* Call syms_of_keyboard before init_window_once because |
1229 | keyboard sets up symbols that include some face names that | |
1230 | the X support will want to use. This can happen when | |
1231 | CANNOT_DUMP is defined. */ | |
1232 | syms_of_keyboard (); | |
90d920b6 | 1233 | |
985773c9 MB |
1234 | /* Called before syms_of_fileio, because it sets up Qerror_condition. */ |
1235 | syms_of_data (); | |
1236 | syms_of_fileio (); | |
1237 | /* Before syms_of_coding to initialize Vgc_cons_threshold. */ | |
1238 | syms_of_alloc (); | |
1239 | /* Before syms_of_coding because it initializes Qcharsetp. */ | |
1240 | syms_of_charset (); | |
1241 | /* Before init_window_once, because it sets up the | |
1242 | Vcoding_system_hash_table. */ | |
1243 | syms_of_coding (); /* This should be after syms_of_fileio. */ | |
1a578e9b | 1244 | |
7db35a48 | 1245 | init_window_once (); /* Init the window system. */ |
6b61353c KH |
1246 | #ifdef HAVE_WINDOW_SYSTEM |
1247 | init_fringe_once (); /* Swap bitmaps if necessary. */ | |
1248 | #endif /* HAVE_WINDOW_SYSTEM */ | |
f927c5ae JB |
1249 | } |
1250 | ||
1251 | init_alloc (); | |
68c45bf0 PE |
1252 | |
1253 | if (do_initial_setlocale) | |
1254 | { | |
1255 | fixup_locale (); | |
ca9c0567 PE |
1256 | Vsystem_messages_locale = Vprevious_system_messages_locale; |
1257 | Vsystem_time_locale = Vprevious_system_time_locale; | |
68c45bf0 PE |
1258 | } |
1259 | ||
f927c5ae JB |
1260 | init_eval (); |
1261 | init_data (); | |
ab5d0358 | 1262 | init_atimer (); |
7074fde6 | 1263 | running_asynch_code = 0; |
0e23ef9d | 1264 | init_random (); |
0e956009 | 1265 | |
956e3c7e | 1266 | no_loadup |
b96f9fb7 | 1267 | = argmatch (argv, argc, "-nl", "--no-loadup", 6, NULL, &skip_args); |
956e3c7e | 1268 | |
66b7b0fe GM |
1269 | no_site_lisp |
1270 | = argmatch (argv, argc, "-nsl", "--no-site-lisp", 11, NULL, &skip_args); | |
1271 | ||
edfda783 | 1272 | #ifdef HAVE_NS |
204ee57f | 1273 | ns_pool = ns_alloc_autorelease_pool (); |
edfda783 AR |
1274 | if (!noninteractive) |
1275 | { | |
edfda783 AR |
1276 | #ifdef NS_IMPL_COCOA |
1277 | if (skip_args < argc) | |
1278 | { | |
32299e33 PE |
1279 | /* FIXME: Do the right thing if getenv returns NULL, or if |
1280 | chdir fails. */ | |
5e617bc2 | 1281 | if (!strncmp (argv[skip_args], "-psn", 4)) |
edfda783 AR |
1282 | { |
1283 | skip_args += 1; | |
3d0a4431 | 1284 | chdir (getenv ("HOME")); |
edfda783 | 1285 | } |
5e617bc2 | 1286 | else if (skip_args+1 < argc && !strncmp (argv[skip_args+1], "-psn", 4)) |
edfda783 | 1287 | { |
95889848 | 1288 | skip_args += 2; |
3d0a4431 | 1289 | chdir (getenv ("HOME")); |
edfda783 AR |
1290 | } |
1291 | } | |
9b68317c | 1292 | #endif /* COCOA */ |
edfda783 AR |
1293 | } |
1294 | #endif /* HAVE_NS */ | |
1295 | ||
956e3c7e RS |
1296 | #ifdef HAVE_X_WINDOWS |
1297 | /* Stupid kludge to catch command-line display spec. We can't | |
1298 | handle this argument entirely in window system dependent code | |
1299 | because we don't even know which window system dependent code | |
1300 | to run until we've recognized this argument. */ | |
1301 | { | |
1302 | char *displayname = 0; | |
956e3c7e RS |
1303 | int count_before = skip_args; |
1304 | ||
1305 | /* Skip any number of -d options, but only use the last one. */ | |
1306 | while (1) | |
1307 | { | |
1308 | int count_before_this = skip_args; | |
1309 | ||
1310 | if (argmatch (argv, argc, "-d", "--display", 3, &displayname, &skip_args)) | |
1311 | display_arg = 1; | |
1312 | else if (argmatch (argv, argc, "-display", 0, 3, &displayname, &skip_args)) | |
1313 | display_arg = 1; | |
1314 | else | |
1315 | break; | |
1316 | ||
1317 | count_before = count_before_this; | |
1318 | } | |
1319 | ||
1320 | /* If we have the form --display=NAME, | |
1321 | convert it into -d name. | |
1322 | This requires inserting a new element into argv. */ | |
0065d054 | 1323 | if (displayname && count_before < skip_args) |
956e3c7e | 1324 | { |
0065d054 PE |
1325 | if (skip_args == count_before + 1) |
1326 | { | |
1327 | memmove (argv + count_before + 3, argv + count_before + 2, | |
1328 | (argc - (count_before + 2)) * sizeof *argv); | |
1329 | argv[count_before + 2] = displayname; | |
1330 | argc++; | |
1331 | } | |
1332 | argv[count_before + 1] = (char *) "-d"; | |
956e3c7e | 1333 | } |
956e3c7e | 1334 | |
66b7b0fe GM |
1335 | if (! no_site_lisp) |
1336 | { | |
1337 | if (argmatch (argv, argc, "-Q", "--quick", 3, NULL, &skip_args) | |
1338 | || argmatch (argv, argc, "-quick", 0, 2, NULL, &skip_args)) | |
1339 | no_site_lisp = 1; | |
1340 | } | |
1341 | ||
956e3c7e RS |
1342 | /* Don't actually discard this arg. */ |
1343 | skip_args = count_before; | |
1344 | } | |
66b7b0fe GM |
1345 | #else /* !HAVE_X_WINDOWS */ |
1346 | if (! no_site_lisp) | |
1347 | { | |
1348 | int count_before = skip_args; | |
1349 | ||
1350 | if (argmatch (argv, argc, "-Q", "--quick", 3, NULL, &skip_args) | |
1351 | || argmatch (argv, argc, "-quick", 0, 2, NULL, &skip_args)) | |
1352 | no_site_lisp = 1; | |
1353 | ||
1354 | skip_args = count_before; | |
1355 | } | |
956e3c7e RS |
1356 | #endif |
1357 | ||
1358 | /* argmatch must not be used after here, | |
91af3942 | 1359 | except when building temacs |
956e3c7e RS |
1360 | because the -d argument has not been skipped in skip_args. */ |
1361 | ||
29b89fe0 RS |
1362 | #ifdef MSDOS |
1363 | /* Call early 'cause init_environment needs it. */ | |
1364 | init_dosfns (); | |
1365 | /* Set defaults for several environment variables. */ | |
18198bb2 RS |
1366 | if (initialized) |
1367 | init_environment (argc, argv, skip_args); | |
1368 | else | |
d1fc6752 | 1369 | tzset (); |
18198bb2 | 1370 | #endif /* MSDOS */ |
29b89fe0 | 1371 | |
8ba50e1a | 1372 | #ifdef WINDOWSNT |
9785d95b | 1373 | globals_of_w32 (); |
8ba50e1a | 1374 | /* Initialize environment from registry settings. */ |
a3a58294 | 1375 | init_environment (argv); |
7db35a48 | 1376 | init_ntproc (); /* must precede init_editfns. */ |
8ba50e1a GV |
1377 | #endif |
1378 | ||
8b4eb796 KR |
1379 | /* Initialize and GC-protect Vinitial_environment and |
1380 | Vprocess_environment before set_initial_environment fills them | |
1381 | in. */ | |
1382 | if (!initialized) | |
1383 | syms_of_callproc (); | |
0e956009 JB |
1384 | /* egetenv is a pretty low-level facility, which may get called in |
1385 | many circumstances; it seems flimsy to put off initializing it | |
738db178 DN |
1386 | until calling init_callproc. Do not do it when dumping. */ |
1387 | if (initialized || ((strcmp (argv[argc-1], "dump") != 0 | |
1388 | && strcmp (argv[argc-1], "bootstrap") != 0))) | |
1389 | set_initial_environment (); | |
1390 | ||
93aed04d | 1391 | /* AIX crashes are reported in system versions 3.2.3 and 3.2.4 |
5990851d KL |
1392 | if this is not done. Do it after set_global_environment so that we |
1393 | don't pollute Vglobal_environment. */ | |
fa09a82d | 1394 | /* Setting LANG here will defeat the startup locale processing... */ |
f2a77c3a | 1395 | #ifdef AIX |
93aed04d RS |
1396 | putenv ("LANG=C"); |
1397 | #endif | |
0e956009 | 1398 | |
7db35a48 | 1399 | init_buffer (); /* Init default directory of main buffer. */ |
ace40a69 | 1400 | |
7928f0b5 | 1401 | init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */ |
ace40a69 | 1402 | init_cmdargs (argc, argv, skip_args); /* Must precede init_lread. */ |
380e25b8 RS |
1403 | |
1404 | if (initialized) | |
1405 | { | |
7db35a48 | 1406 | /* Erase any pre-dump messages in the message log, to avoid confusion. */ |
380e25b8 RS |
1407 | Lisp_Object old_log_max; |
1408 | old_log_max = Vmessage_log_max; | |
1409 | XSETFASTINT (Vmessage_log_max, 0); | |
f6fe7bb5 | 1410 | message_dolog ("", 0, 1, 0); |
380e25b8 RS |
1411 | Vmessage_log_max = old_log_max; |
1412 | } | |
1413 | ||
7928f0b5 | 1414 | init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */ |
fb8e9847 | 1415 | init_lread (); |
76151e2c EZ |
1416 | #ifdef WINDOWSNT |
1417 | /* Check to see if Emacs has been installed correctly. */ | |
1418 | check_windows_init_file (); | |
1419 | #endif | |
f927c5ae | 1420 | |
8bb697c0 RS |
1421 | /* Intern the names of all standard functions and variables; |
1422 | define standard keys. */ | |
f927c5ae JB |
1423 | |
1424 | if (!initialized) | |
1425 | { | |
4230ab74 KR |
1426 | /* The basic levels of Lisp must come first. Note that |
1427 | syms_of_data and some others have already been called. */ | |
e37d7195 | 1428 | syms_of_chartab (); |
fb8e9847 | 1429 | syms_of_lread (); |
f927c5ae JB |
1430 | syms_of_print (); |
1431 | syms_of_eval (); | |
1432 | syms_of_fns (); | |
f927c5ae | 1433 | syms_of_floatfns (); |
f927c5ae | 1434 | |
f927c5ae JB |
1435 | syms_of_buffer (); |
1436 | syms_of_bytecode (); | |
1437 | syms_of_callint (); | |
1438 | syms_of_casefiddle (); | |
1439 | syms_of_casetab (); | |
270ce821 KH |
1440 | syms_of_category (); |
1441 | syms_of_ccl (); | |
e37d7195 | 1442 | syms_of_character (); |
f927c5ae | 1443 | syms_of_cmds (); |
f927c5ae | 1444 | syms_of_dired (); |
f927c5ae JB |
1445 | syms_of_display (); |
1446 | syms_of_doc (); | |
1447 | syms_of_editfns (); | |
1448 | syms_of_emacs (); | |
f927c5ae | 1449 | syms_of_filelock (); |
f927c5ae | 1450 | syms_of_indent (); |
c2c5ed2c | 1451 | syms_of_insdel (); |
4ea81208 | 1452 | /* syms_of_keymap (); */ |
f927c5ae JB |
1453 | syms_of_macros (); |
1454 | syms_of_marker (); | |
1455 | syms_of_minibuf (); | |
f927c5ae | 1456 | syms_of_process (); |
f927c5ae | 1457 | syms_of_search (); |
1cbd5d9d | 1458 | syms_of_frame (); |
f927c5ae | 1459 | syms_of_syntax (); |
ed8dad6b | 1460 | syms_of_terminal (); |
0d934e7b | 1461 | syms_of_term (); |
f927c5ae | 1462 | syms_of_undo (); |
90d920b6 GM |
1463 | #ifdef HAVE_SOUND |
1464 | syms_of_sound (); | |
1465 | #endif | |
bef79ee4 | 1466 | syms_of_textprop (); |
9d100795 | 1467 | syms_of_composite (); |
05687c54 RS |
1468 | #ifdef WINDOWSNT |
1469 | syms_of_ntproc (); | |
1470 | #endif /* WINDOWSNT */ | |
f927c5ae JB |
1471 | syms_of_window (); |
1472 | syms_of_xdisp (); | |
d53f587b | 1473 | syms_of_font (); |
4fa9161d | 1474 | #ifdef HAVE_WINDOW_SYSTEM |
6b61353c KH |
1475 | syms_of_fringe (); |
1476 | syms_of_image (); | |
1477 | #endif /* HAVE_WINDOW_SYSTEM */ | |
f927c5ae | 1478 | #ifdef HAVE_X_WINDOWS |
72412588 | 1479 | syms_of_xterm (); |
f927c5ae | 1480 | syms_of_xfns (); |
edfda783 | 1481 | syms_of_xmenu (); |
270ce821 | 1482 | syms_of_fontset (); |
637fa988 | 1483 | syms_of_xsettings (); |
28b1b672 JD |
1484 | #ifdef HAVE_X_SM |
1485 | syms_of_xsmfns (); | |
1486 | #endif | |
72412588 JB |
1487 | #ifdef HAVE_X11 |
1488 | syms_of_xselect (); | |
1489 | #endif | |
f927c5ae JB |
1490 | #endif /* HAVE_X_WINDOWS */ |
1491 | ||
381408e2 LMI |
1492 | #ifdef HAVE_LIBXML2 |
1493 | syms_of_xml (); | |
1494 | #endif | |
1495 | ||
4e77ce60 | 1496 | syms_of_menu (); |
4e77ce60 | 1497 | |
8ba50e1a | 1498 | #ifdef HAVE_NTGUI |
fbd6baed GV |
1499 | syms_of_w32term (); |
1500 | syms_of_w32fns (); | |
fbd6baed GV |
1501 | syms_of_w32select (); |
1502 | syms_of_w32menu (); | |
02062ac3 | 1503 | syms_of_fontset (); |
8ba50e1a GV |
1504 | #endif /* HAVE_NTGUI */ |
1505 | ||
40da1153 EZ |
1506 | #ifdef MSDOS |
1507 | syms_of_xmenu (); | |
5e617bc2 JB |
1508 | syms_of_dosfns (); |
1509 | syms_of_msdos (); | |
1510 | syms_of_win16select (); | |
40da1153 EZ |
1511 | #endif /* MSDOS */ |
1512 | ||
edfda783 AR |
1513 | #ifdef HAVE_NS |
1514 | syms_of_nsterm (); | |
1515 | syms_of_nsfns (); | |
1516 | syms_of_nsmenu (); | |
1517 | syms_of_nsselect (); | |
1518 | syms_of_fontset (); | |
1519 | #endif /* HAVE_NS */ | |
1520 | ||
8af55556 TZ |
1521 | #ifdef HAVE_GNUTLS |
1522 | syms_of_gnutls (); | |
1523 | #endif | |
1524 | ||
033b73e2 MA |
1525 | #ifdef HAVE_DBUS |
1526 | syms_of_dbusbind (); | |
1527 | #endif /* HAVE_DBUS */ | |
1528 | ||
2e31d424 DN |
1529 | #ifdef WINDOWSNT |
1530 | syms_of_ntterm (); | |
1531 | #endif /* WINDOWSNT */ | |
f927c5ae JB |
1532 | |
1533 | keys_of_casefiddle (); | |
1534 | keys_of_cmds (); | |
1535 | keys_of_buffer (); | |
1536 | keys_of_keyboard (); | |
1537 | keys_of_keymap (); | |
f927c5ae | 1538 | keys_of_window (); |
9785d95b | 1539 | } |
3b6536b1 | 1540 | else |
9785d95b | 1541 | { |
3b6536b1 AS |
1542 | /* Initialization that must be done even if the global variable |
1543 | initialized is non zero. */ | |
9785d95b | 1544 | #ifdef HAVE_NTGUI |
db4f02f2 | 1545 | globals_of_w32font (); |
9785d95b BK |
1546 | globals_of_w32fns (); |
1547 | globals_of_w32menu (); | |
52c7f9ee | 1548 | globals_of_w32select (); |
3b6536b1 | 1549 | #endif /* HAVE_NTGUI */ |
f927c5ae JB |
1550 | } |
1551 | ||
cf411e8d KH |
1552 | init_charset (); |
1553 | ||
b82da769 GM |
1554 | init_editfns (); /* init_process_emacs uses Voperating_system_release. */ |
1555 | init_process_emacs (); /* init_display uses add_keyboard_wait_descriptor. */ | |
7db35a48 | 1556 | init_keyboard (); /* This too must precede init_sys_modes. */ |
0a125897 | 1557 | if (!noninteractive) |
7c2fb837 | 1558 | init_display (); /* Determine terminal type. Calls init_sys_modes. */ |
8bb697c0 | 1559 | init_xdisp (); |
6b61353c KH |
1560 | #ifdef HAVE_WINDOW_SYSTEM |
1561 | init_fringe (); | |
6b61353c | 1562 | #endif /* HAVE_WINDOW_SYSTEM */ |
8bb697c0 | 1563 | init_macros (); |
8bb697c0 | 1564 | init_floatfns (); |
75816372 | 1565 | init_window (); |
74d75424 | 1566 | init_font (); |
087fc47a | 1567 | |
f927c5ae JB |
1568 | if (!initialized) |
1569 | { | |
e2925360 | 1570 | char *file; |
7db35a48 | 1571 | /* Handle -l loadup, args passed by Makefile. */ |
df6530f8 | 1572 | if (argmatch (argv, argc, "-l", "--load", 3, &file, &skip_args)) |
d67b4f80 | 1573 | Vtop_level = Fcons (intern_c_string ("load"), |
e2925360 | 1574 | Fcons (build_string (file), Qnil)); |
f927c5ae | 1575 | /* Unless next switch is -nl, load "loadup.el" first thing. */ |
956e3c7e | 1576 | if (! no_loadup) |
d67b4f80 | 1577 | Vtop_level = Fcons (intern_c_string ("load"), |
f927c5ae | 1578 | Fcons (build_string ("loadup.el"), Qnil)); |
f927c5ae JB |
1579 | } |
1580 | ||
93572b43 KH |
1581 | if (initialized) |
1582 | { | |
0269dedb RS |
1583 | #ifdef HAVE_TZSET |
1584 | { | |
1585 | /* If the execution TZ happens to be the same as the dump TZ, | |
1586 | change it to some other value and then change it back, | |
1587 | to force the underlying implementation to reload the TZ info. | |
1588 | This is needed on implementations that load TZ info from files, | |
1589 | since the TZ file contents may differ between dump and execution. */ | |
1590 | char *tz = getenv ("TZ"); | |
1591 | if (tz && !strcmp (tz, dump_tz)) | |
1592 | { | |
1593 | ++*tz; | |
1594 | tzset (); | |
1595 | --*tz; | |
1596 | } | |
1597 | } | |
1598 | #endif | |
93572b43 KH |
1599 | } |
1600 | ||
ecf783fa EZ |
1601 | /* Set up for profiling. This is known to work on FreeBSD, |
1602 | GNU/Linux and MinGW. It might work on some other systems too. | |
1603 | Give it a try and tell us if it works on your system. To compile | |
7b3a82d7 | 1604 | for profiling, use the configure option --enable-profiling. */ |
5e617bc2 | 1605 | #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined (__MINGW32__) |
e610ea43 RS |
1606 | #ifdef PROFILING |
1607 | if (initialized) | |
1608 | { | |
ecf783fa EZ |
1609 | #ifdef __MINGW32__ |
1610 | extern unsigned char etext asm ("etext"); | |
1611 | #else | |
e610ea43 | 1612 | extern char etext; |
ecf783fa | 1613 | #endif |
67a5596f | 1614 | |
e610ea43 | 1615 | atexit (_mcleanup); |
9e4bf381 | 1616 | monstartup ((uintptr_t) __executable_start, (uintptr_t) &etext); |
e610ea43 RS |
1617 | } |
1618 | else | |
1619 | moncontrol (0); | |
1620 | #endif | |
1621 | #endif | |
1622 | ||
f927c5ae JB |
1623 | initialized = 1; |
1624 | ||
e7536cff RS |
1625 | #ifdef LOCALTIME_CACHE |
1626 | /* Some versions of localtime have a bug. They cache the value of the time | |
279cc2b8 JB |
1627 | zone rather than looking it up every time. Since localtime() is |
1628 | called to bolt the undumping time into the undumped emacs, this | |
afe9fae9 | 1629 | results in localtime ignoring the TZ environment variable. |
7db35a48 | 1630 | This flushes the new TZ value into localtime. */ |
afe9fae9 | 1631 | tzset (); |
e7536cff | 1632 | #endif /* defined (LOCALTIME_CACHE) */ |
279cc2b8 | 1633 | |
f927c5ae JB |
1634 | /* Enter editor command loop. This never returns. */ |
1635 | Frecursive_edit (); | |
1636 | /* NOTREACHED */ | |
6bbd7a29 | 1637 | return 0; |
f927c5ae JB |
1638 | } |
1639 | \f | |
081bef73 RS |
1640 | /* Sort the args so we can find the most important ones |
1641 | at the beginning of argv. */ | |
1642 | ||
1643 | /* First, here's a table of all the standard options. */ | |
1644 | ||
1645 | struct standard_args | |
1646 | { | |
5e2327cf DN |
1647 | const char *name; |
1648 | const char *longname; | |
081bef73 RS |
1649 | int priority; |
1650 | int nargs; | |
1651 | }; | |
1652 | ||
35f08c38 | 1653 | static const struct standard_args standard_args[] = |
081bef73 | 1654 | { |
05922407 | 1655 | { "-version", "--version", 150, 0 }, |
f63d0028 | 1656 | { "-chdir", "--chdir", 130, 1 }, |
05922407 | 1657 | { "-t", "--terminal", 120, 1 }, |
400d6fa9 | 1658 | { "-nw", "--no-window-system", 110, 0 }, |
05922407 RS |
1659 | { "-nw", "--no-windows", 110, 0 }, |
1660 | { "-batch", "--batch", 100, 0 }, | |
6e910e07 | 1661 | { "-script", "--script", 100, 1 }, |
eab2ee89 | 1662 | { "-daemon", "--daemon", 99, 0 }, |
05922407 | 1663 | { "-help", "--help", 90, 0 }, |
956e3c7e | 1664 | { "-nl", "--no-loadup", 70, 0 }, |
66b7b0fe | 1665 | { "-nsl", "--no-site-lisp", 65, 0 }, |
956e3c7e RS |
1666 | /* -d must come last before the options handled in startup.el. */ |
1667 | { "-d", "--display", 60, 1 }, | |
1668 | { "-display", 0, 60, 1 }, | |
4fe22cdf | 1669 | /* Now for the options handled in `command-line' (startup.el). */ |
66b7b0fe | 1670 | /* (Note that to imply -nsl, -Q is partially handled here.) */ |
a1716a57 RS |
1671 | { "-Q", "--quick", 55, 0 }, |
1672 | { "-quick", 0, 55, 0 }, | |
081bef73 RS |
1673 | { "-q", "--no-init-file", 50, 0 }, |
1674 | { "-no-init-file", 0, 50, 0 }, | |
1675 | { "-no-site-file", "--no-site-file", 40, 0 }, | |
1676 | { "-u", "--user", 30, 1 }, | |
1677 | { "-user", 0, 30, 1 }, | |
1678 | { "-debug-init", "--debug-init", 20, 0 }, | |
f2bc3538 | 1679 | { "-iconic", "--iconic", 15, 0 }, |
a1716a57 | 1680 | { "-D", "--basic-display", 12, 0}, |
e09b9180 | 1681 | { "-basic-display", 0, 12, 0}, |
4fe22cdf CY |
1682 | { "-nbc", "--no-blinking-cursor", 12, 0 }, |
1683 | /* Now for the options handled in `command-line-1' (startup.el). */ | |
1684 | { "-nbi", "--no-bitmap-icon", 10, 0 }, | |
081bef73 RS |
1685 | { "-bg", "--background-color", 10, 1 }, |
1686 | { "-background", 0, 10, 1 }, | |
1687 | { "-fg", "--foreground-color", 10, 1 }, | |
1688 | { "-foreground", 0, 10, 1 }, | |
1689 | { "-bd", "--border-color", 10, 1 }, | |
1690 | { "-bw", "--border-width", 10, 1 }, | |
1691 | { "-ib", "--internal-border", 10, 1 }, | |
1692 | { "-ms", "--mouse-color", 10, 1 }, | |
1693 | { "-cr", "--cursor-color", 10, 1 }, | |
1694 | { "-fn", "--font", 10, 1 }, | |
1695 | { "-font", 0, 10, 1 }, | |
94452530 EZ |
1696 | { "-fs", "--fullscreen", 10, 0 }, |
1697 | { "-fw", "--fullwidth", 10, 0 }, | |
1698 | { "-fh", "--fullheight", 10, 0 }, | |
3f1c6666 | 1699 | { "-mm", "--maximized", 10, 0 }, |
081bef73 RS |
1700 | { "-g", "--geometry", 10, 1 }, |
1701 | { "-geometry", 0, 10, 1 }, | |
1702 | { "-T", "--title", 10, 1 }, | |
ae63ae52 | 1703 | { "-title", 0, 10, 1 }, |
081bef73 RS |
1704 | { "-name", "--name", 10, 1 }, |
1705 | { "-xrm", "--xrm", 10, 1 }, | |
1540a61a | 1706 | { "-parent-id", "--parent-id", 10, 1 }, |
fcdeb5d9 RS |
1707 | { "-r", "--reverse-video", 5, 0 }, |
1708 | { "-rv", 0, 5, 0 }, | |
1709 | { "-reverse", 0, 5, 0 }, | |
ae63ae52 | 1710 | { "-hb", "--horizontal-scroll-bars", 5, 0 }, |
fcdeb5d9 | 1711 | { "-vb", "--vertical-scroll-bars", 5, 0 }, |
d20e1b1e | 1712 | { "-color", "--color", 5, 0}, |
16706228 JL |
1713 | { "-no-splash", "--no-splash", 3, 0 }, |
1714 | { "-no-desktop", "--no-desktop", 3, 0 }, | |
edfda783 AR |
1715 | #ifdef HAVE_NS |
1716 | { "-NSAutoLaunch", 0, 5, 1 }, | |
1717 | { "-NXAutoLaunch", 0, 5, 1 }, | |
1718 | { "-disable-font-backend", "--disable-font-backend", 65, 0 }, | |
1719 | { "-_NSMachLaunch", 0, 85, 1 }, | |
1720 | { "-MachLaunch", 0, 85, 1 }, | |
1721 | { "-macosx", 0, 85, 0 }, | |
1722 | { "-NSHost", 0, 85, 1 }, | |
1723 | #endif | |
fcdeb5d9 RS |
1724 | /* These have the same priority as ordinary file name args, |
1725 | so they are not reordered with respect to those. */ | |
4af9e0b3 RS |
1726 | { "-L", "--directory", 0, 1 }, |
1727 | { "-directory", 0, 0, 1 }, | |
fcdeb5d9 RS |
1728 | { "-l", "--load", 0, 1 }, |
1729 | { "-load", 0, 0, 1 }, | |
21a4ff8e GM |
1730 | /* This has no longname, because using --scriptload confuses sort_args, |
1731 | because then the --script long option seems to match twice; ie | |
1732 | you can't have a long option which is a prefix of another long | |
1733 | option. In any case, this is entirely an internal option. */ | |
1734 | { "-scriptload", NULL, 0, 1 }, | |
fcdeb5d9 RS |
1735 | { "-f", "--funcall", 0, 1 }, |
1736 | { "-funcall", 0, 0, 1 }, | |
575985b1 | 1737 | { "-eval", "--eval", 0, 1 }, |
67a5596f | 1738 | { "-execute", "--execute", 0, 1 }, |
2e13f8e9 RS |
1739 | { "-find-file", "--find-file", 0, 1 }, |
1740 | { "-visit", "--visit", 0, 1 }, | |
67a5596f | 1741 | { "-file", "--file", 0, 1 }, |
fcdeb5d9 | 1742 | { "-insert", "--insert", 0, 1 }, |
edfda783 AR |
1743 | #ifdef HAVE_NS |
1744 | { "-NXOpen", 0, 0, 1 }, | |
1745 | { "-NXOpenTemp", 0, 0, 1 }, | |
1746 | { "-NSOpen", 0, 0, 1 }, | |
1747 | { "-NSOpenTemp", 0, 0, 1 }, | |
1748 | { "-GSFilePath", 0, 0, 1 }, | |
1749 | #endif | |
f2bc3538 | 1750 | /* This should be processed after ordinary file name args and the like. */ |
fcdeb5d9 | 1751 | { "-kill", "--kill", -10, 0 }, |
081bef73 RS |
1752 | }; |
1753 | ||
1754 | /* Reorder the elements of ARGV (assumed to have ARGC elements) | |
1755 | so that the highest priority ones come first. | |
1756 | Do not change the order of elements of equal priority. | |
956e3c7e RS |
1757 | If an option takes an argument, keep it and its argument together. |
1758 | ||
1759 | If an option that takes no argument appears more | |
1760 | than once, eliminate all but one copy of it. */ | |
081bef73 RS |
1761 | |
1762 | static void | |
dd4c5104 | 1763 | sort_args (int argc, char **argv) |
081bef73 | 1764 | { |
38182d90 | 1765 | char **new = xmalloc (argc * sizeof *new); |
081bef73 RS |
1766 | /* For each element of argv, |
1767 | the corresponding element of options is: | |
1768 | 0 for an option that takes no arguments, | |
1769 | 1 for an option that takes one argument, etc. | |
1770 | -1 for an ordinary non-option argument. */ | |
0065d054 PE |
1771 | int *options = xnmalloc (argc, sizeof *options); |
1772 | int *priority = xnmalloc (argc, sizeof *priority); | |
081bef73 | 1773 | int to = 1; |
956e3c7e | 1774 | int incoming_used = 1; |
081bef73 RS |
1775 | int from; |
1776 | int i; | |
1777 | ||
1778 | /* Categorize all the options, | |
1779 | and figure out which argv elts are option arguments. */ | |
1780 | for (from = 1; from < argc; from++) | |
1781 | { | |
1782 | options[from] = -1; | |
fcdeb5d9 | 1783 | priority[from] = 0; |
081bef73 RS |
1784 | if (argv[from][0] == '-') |
1785 | { | |
0b963a93 | 1786 | int match; |
081bef73 | 1787 | |
c96f26f4 RS |
1788 | /* If we have found "--", don't consider |
1789 | any more arguments as options. */ | |
249443b6 | 1790 | if (argv[from][1] == '-' && argv[from][2] == 0) |
c96f26f4 RS |
1791 | { |
1792 | /* Leave the "--", and everything following it, at the end. */ | |
1793 | for (; from < argc; from++) | |
1794 | { | |
1795 | priority[from] = -100; | |
1796 | options[from] = -1; | |
1797 | } | |
1798 | break; | |
1799 | } | |
1800 | ||
081bef73 RS |
1801 | /* Look for a match with a known old-fashioned option. */ |
1802 | for (i = 0; i < sizeof (standard_args) / sizeof (standard_args[0]); i++) | |
1803 | if (!strcmp (argv[from], standard_args[i].name)) | |
1804 | { | |
1805 | options[from] = standard_args[i].nargs; | |
1806 | priority[from] = standard_args[i].priority; | |
fd76ec52 RS |
1807 | if (from + standard_args[i].nargs >= argc) |
1808 | fatal ("Option `%s' requires an argument\n", argv[from]); | |
081bef73 RS |
1809 | from += standard_args[i].nargs; |
1810 | goto done; | |
1811 | } | |
1812 | ||
1813 | /* Look for a match with a known long option. | |
1814 | MATCH is -1 if no match so far, -2 if two or more matches so far, | |
1815 | >= 0 (the table index of the match) if just one match so far. */ | |
1816 | if (argv[from][1] == '-') | |
1817 | { | |
0b963a93 PE |
1818 | char const *equals = strchr (argv[from], '='); |
1819 | ptrdiff_t thislen = | |
1820 | equals ? equals - argv[from] : strlen (argv[from]); | |
1821 | ||
081bef73 | 1822 | match = -1; |
081bef73 | 1823 | |
f609ef57 KH |
1824 | for (i = 0; |
1825 | i < sizeof (standard_args) / sizeof (standard_args[0]); i++) | |
1826 | if (standard_args[i].longname | |
1827 | && !strncmp (argv[from], standard_args[i].longname, | |
1828 | thislen)) | |
081bef73 RS |
1829 | { |
1830 | if (match == -1) | |
1831 | match = i; | |
1832 | else | |
1833 | match = -2; | |
1834 | } | |
1835 | ||
1836 | /* If we found exactly one match, use that. */ | |
1837 | if (match >= 0) | |
1838 | { | |
1839 | options[from] = standard_args[match].nargs; | |
1840 | priority[from] = standard_args[match].priority; | |
1841 | /* If --OPTION=VALUE syntax is used, | |
1842 | this option uses just one argv element. */ | |
1843 | if (equals != 0) | |
1844 | options[from] = 0; | |
fd76ec52 RS |
1845 | if (from + options[from] >= argc) |
1846 | fatal ("Option `%s' requires an argument\n", argv[from]); | |
081bef73 RS |
1847 | from += options[from]; |
1848 | } | |
a09a5b5b GM |
1849 | /* FIXME When match < 0, shouldn't there be some error, |
1850 | or at least indication to the user that there was a | |
1851 | problem? */ | |
081bef73 RS |
1852 | } |
1853 | done: ; | |
1854 | } | |
1855 | } | |
1856 | ||
1857 | /* Copy the arguments, in order of decreasing priority, to NEW. */ | |
1858 | new[0] = argv[0]; | |
956e3c7e | 1859 | while (incoming_used < argc) |
081bef73 RS |
1860 | { |
1861 | int best = -1; | |
2c70c992 | 1862 | int best_priority = -9999; |
081bef73 RS |
1863 | |
1864 | /* Find the highest priority remaining option. | |
1865 | If several have equal priority, take the first of them. */ | |
1866 | for (from = 1; from < argc; from++) | |
1867 | { | |
1868 | if (argv[from] != 0 && priority[from] > best_priority) | |
1869 | { | |
1870 | best_priority = priority[from]; | |
1871 | best = from; | |
1872 | } | |
1873 | /* Skip option arguments--they are tied to the options. */ | |
1874 | if (options[from] > 0) | |
1875 | from += options[from]; | |
1876 | } | |
7db35a48 | 1877 | |
081bef73 | 1878 | if (best < 0) |
1088b922 | 1879 | emacs_abort (); |
081bef73 | 1880 | |
956e3c7e RS |
1881 | /* Copy the highest priority remaining option, with its args, to NEW. |
1882 | Unless it is a duplicate of the previous one. */ | |
1883 | if (! (options[best] == 0 | |
1884 | && ! strcmp (new[to - 1], argv[best]))) | |
1885 | { | |
1886 | new[to++] = argv[best]; | |
1887 | for (i = 0; i < options[best]; i++) | |
1888 | new[to++] = argv[best + i + 1]; | |
1889 | } | |
1890 | ||
1891 | incoming_used += 1 + (options[best] > 0 ? options[best] : 0); | |
081bef73 RS |
1892 | |
1893 | /* Clear out this option in ARGV. */ | |
1894 | argv[best] = 0; | |
1895 | for (i = 0; i < options[best]; i++) | |
1896 | argv[best + i + 1] = 0; | |
1897 | } | |
1898 | ||
81b7af72 RS |
1899 | /* If duplicate options were deleted, fill up extra space with null ptrs. */ |
1900 | while (to < argc) | |
1901 | new[to++] = 0; | |
1902 | ||
72af86bd | 1903 | memcpy (argv, new, sizeof (char *) * argc); |
0bf591da | 1904 | |
68db37aa KS |
1905 | xfree (options); |
1906 | xfree (new); | |
1907 | xfree (priority); | |
081bef73 RS |
1908 | } |
1909 | \f | |
a7ca3326 | 1910 | DEFUN ("kill-emacs", Fkill_emacs, Skill_emacs, 0, 1, "P", |
7db35a48 PJ |
1911 | doc: /* Exit the Emacs job and kill it. |
1912 | If ARG is an integer, return ARG as the exit program code. | |
b224de9b | 1913 | If ARG is a string, stuff it as keyboard input. |
7db35a48 | 1914 | |
9c524fcb | 1915 | This function is called upon receipt of the signals SIGTERM |
383ebd15 | 1916 | or SIGHUP, and upon SIGINT in batch mode. |
9c524fcb | 1917 | |
7db35a48 PJ |
1918 | The value of `kill-emacs-hook', if not void, |
1919 | is a list of functions (of no args), | |
1920 | all of which are called before Emacs is actually killed. */) | |
5842a27b | 1921 | (Lisp_Object arg) |
f927c5ae | 1922 | { |
f927c5ae | 1923 | struct gcpro gcpro1; |
dee091a3 | 1924 | Lisp_Object hook; |
8eca8a7c | 1925 | int exit_code; |
f927c5ae JB |
1926 | |
1927 | GCPRO1 (arg); | |
1928 | ||
1929 | if (feof (stdin)) | |
1930 | arg = Qt; | |
1931 | ||
dee091a3 JD |
1932 | hook = intern ("kill-emacs-hook"); |
1933 | Frun_hooks (1, &hook); | |
f927c5ae | 1934 | |
f927c5ae JB |
1935 | UNGCPRO; |
1936 | ||
1dd3c2d9 CY |
1937 | #ifdef HAVE_X_WINDOWS |
1938 | /* Transfer any clipboards we own to the clipboard manager. */ | |
1939 | x_clipboard_manager_save_all (); | |
1940 | #endif | |
1941 | ||
1882aa38 | 1942 | shut_down_emacs (0, STRINGP (arg) ? arg : Qnil); |
40be253a | 1943 | |
204ee57f JD |
1944 | #ifdef HAVE_NS |
1945 | ns_release_autorelease_pool (ns_pool); | |
1946 | #endif | |
1947 | ||
58545838 KH |
1948 | /* If we have an auto-save list file, |
1949 | kill it because we are exiting Emacs deliberately (not crashing). | |
1950 | Do it after shut_down_emacs, which does an auto-save. */ | |
1951 | if (STRINGP (Vauto_save_list_file_name)) | |
42a5b22f | 1952 | unlink (SSDATA (Vauto_save_list_file_name)); |
58545838 | 1953 | |
5895d7b9 PE |
1954 | if (INTEGERP (arg)) |
1955 | exit_code = (XINT (arg) < 0 | |
1956 | ? XINT (arg) | INT_MIN | |
1957 | : XINT (arg) & INT_MAX); | |
1958 | else if (noninteractive && (fflush (stdout) || ferror (stdout))) | |
8eca8a7c | 1959 | exit_code = EXIT_FAILURE; |
d311d28c | 1960 | else |
5895d7b9 PE |
1961 | exit_code = EXIT_SUCCESS; |
1962 | exit (exit_code); | |
f927c5ae | 1963 | } |
40be253a JB |
1964 | |
1965 | ||
1966 | /* Perform an orderly shutdown of Emacs. Autosave any modified | |
1967 | buffers, kill any child processes, clean up the terminal modes (if | |
1968 | we're in the foreground), and other stuff like that. Don't perform | |
1969 | any redisplay; this may be called when Emacs is shutting down in | |
1970 | the background, or after its X connection has died. | |
1971 | ||
1972 | If SIG is a signal number, print a message for it. | |
1973 | ||
1974 | This is called by fatal signal handlers, X protocol error handlers, | |
1975 | and Fkill_emacs. */ | |
f7ab4e3d | 1976 | |
40be253a | 1977 | void |
1882aa38 | 1978 | shut_down_emacs (int sig, Lisp_Object stuff) |
40be253a | 1979 | { |
829d872b RS |
1980 | /* Prevent running of hooks from now on. */ |
1981 | Vrun_hooks = Qnil; | |
1982 | ||
9db03f6c KS |
1983 | /* Don't update display from now on. */ |
1984 | Vinhibit_redisplay = Qt; | |
1985 | ||
7db35a48 | 1986 | /* If we are controlling the terminal, reset terminal modes. */ |
a7ebc409 | 1987 | #ifndef DOS_NT |
40be253a | 1988 | { |
d04d81d2 | 1989 | int pgrp = EMACS_GETPGRP (0); |
12e610e8 DN |
1990 | int tpgrp = tcgetpgrp (0); |
1991 | if ((tpgrp != -1) && tpgrp == pgrp) | |
40be253a | 1992 | { |
28d440ab | 1993 | reset_all_sys_modes (); |
40be253a | 1994 | if (sig && sig != SIGTERM) |
6b61353c | 1995 | fprintf (stderr, "Fatal error (%d)", sig); |
40be253a JB |
1996 | } |
1997 | } | |
1998 | #else | |
1999 | fflush (stdout); | |
0a125897 | 2000 | reset_all_sys_modes (); |
40be253a JB |
2001 | #endif |
2002 | ||
f7ab4e3d RS |
2003 | stuff_buffered_input (stuff); |
2004 | ||
92d835a4 | 2005 | inhibit_sentinels = 1; |
40be253a JB |
2006 | kill_buffer_processes (Qnil); |
2007 | Fdo_auto_save (Qt, Qnil); | |
2008 | ||
2009 | #ifdef CLASH_DETECTION | |
2010 | unlock_all_files (); | |
2011 | #endif | |
2012 | ||
40be253a JB |
2013 | #ifdef SIGIO |
2014 | /* There is a tendency for a SIGIO signal to arrive within exit, | |
2015 | and cause a SIGHUP because the input descriptor is already closed. */ | |
2016 | unrequest_sigio (); | |
2017 | signal (SIGIO, SIG_IGN); | |
2018 | #endif | |
41f339d4 RS |
2019 | |
2020 | #ifdef WINDOWSNT | |
2021 | term_ntproc (); | |
2022 | #endif | |
d546e578 | 2023 | |
cd8d4168 GM |
2024 | /* Do this only if terminating normally, we want glyph matrices |
2025 | etc. in a core dump. */ | |
200f868e | 2026 | if (sig == 0 || sig == SIGTERM) |
cd8d4168 GM |
2027 | { |
2028 | check_glyph_memory (); | |
2029 | check_message_stack (); | |
2030 | } | |
90d920b6 | 2031 | |
d546e578 EZ |
2032 | #ifdef MSDOS |
2033 | dos_cleanup (); | |
2034 | #endif | |
edfda783 AR |
2035 | |
2036 | #ifdef HAVE_NS | |
2037 | ns_term_shutdown (sig); | |
2038 | #endif | |
fcb901a7 LMI |
2039 | |
2040 | #ifdef HAVE_LIBXML2 | |
9078ead6 | 2041 | xml_cleanup_parser (); |
fcb901a7 | 2042 | #endif |
40be253a JB |
2043 | } |
2044 | ||
2045 | ||
f927c5ae JB |
2046 | \f |
2047 | #ifndef CANNOT_DUMP | |
f927c5ae | 2048 | |
ce701a33 | 2049 | #include "unexec.h" |
dd5ecd6b | 2050 | |
f927c5ae | 2051 | DEFUN ("dump-emacs", Fdump_emacs, Sdump_emacs, 2, 2, 0, |
7db35a48 PJ |
2052 | doc: /* Dump current state of Emacs into executable file FILENAME. |
2053 | Take symbols from SYMFILE (presumably the file you executed to run Emacs). | |
2054 | This is used in the file `loadup.el' when building Emacs. | |
2055 | ||
2056 | You must run Emacs in batch mode in order to dump it. */) | |
5842a27b | 2057 | (Lisp_Object filename, Lisp_Object symfile) |
f927c5ae | 2058 | { |
f927c5ae | 2059 | Lisp_Object tem; |
1b7ddf4f | 2060 | Lisp_Object symbol; |
d311d28c | 2061 | ptrdiff_t count = SPECPDL_INDEX (); |
4fab758d GM |
2062 | |
2063 | check_pure_size (); | |
f927c5ae | 2064 | |
87a98b1a RS |
2065 | if (! noninteractive) |
2066 | error ("Dumping Emacs works only in batch mode"); | |
2067 | ||
848a925e | 2068 | #ifdef GNU_LINUX |
c339dc2e PE |
2069 | |
2070 | /* Warn if the gap between BSS end and heap start is larger than this. */ | |
2071 | # define MAX_HEAP_BSS_DIFF (1024*1024) | |
2072 | ||
dede2792 JD |
2073 | if (heap_bss_diff > MAX_HEAP_BSS_DIFF) |
2074 | { | |
2075 | fprintf (stderr, "**************************************************\n"); | |
2076 | fprintf (stderr, "Warning: Your system has a gap between BSS and the\n"); | |
b312a492 | 2077 | fprintf (stderr, "heap (%"pMu" bytes). This usually means that exec-shield\n", |
c37caf9d JD |
2078 | heap_bss_diff); |
2079 | fprintf (stderr, "or something similar is in effect. The dump may\n"); | |
e79beb56 | 2080 | fprintf (stderr, "fail because of this. See the section about\n"); |
c37caf9d | 2081 | fprintf (stderr, "exec-shield in etc/PROBLEMS for more information.\n"); |
dede2792 JD |
2082 | fprintf (stderr, "**************************************************\n"); |
2083 | } | |
848a925e | 2084 | #endif /* GNU_LINUX */ |
dede2792 | 2085 | |
1b7ddf4f RS |
2086 | /* Bind `command-line-processed' to nil before dumping, |
2087 | so that the dumped Emacs will process its command line | |
2088 | and set up to work with X windows if appropriate. */ | |
4aaa3607 | 2089 | symbol = intern ("command-line-processed"); |
1b7ddf4f RS |
2090 | specbind (symbol, Qnil); |
2091 | ||
b7826503 | 2092 | CHECK_STRING (filename); |
c9aae259 EN |
2093 | filename = Fexpand_file_name (filename, Qnil); |
2094 | if (!NILP (symfile)) | |
f927c5ae | 2095 | { |
b7826503 | 2096 | CHECK_STRING (symfile); |
d5db4077 | 2097 | if (SCHARS (symfile)) |
c9aae259 | 2098 | symfile = Fexpand_file_name (symfile, Qnil); |
f927c5ae JB |
2099 | } |
2100 | ||
2101 | tem = Vpurify_flag; | |
2102 | Vpurify_flag = Qnil; | |
2103 | ||
0269dedb RS |
2104 | #ifdef HAVE_TZSET |
2105 | set_time_zone_rule (dump_tz); | |
2106 | #ifndef LOCALTIME_CACHE | |
2107 | /* Force a tz reload, since set_time_zone_rule doesn't. */ | |
2108 | tzset (); | |
2109 | #endif | |
2110 | #endif | |
2111 | ||
f927c5ae | 2112 | fflush (stdout); |
7db35a48 | 2113 | /* Tell malloc where start of impure now is. */ |
f927c5ae JB |
2114 | /* Also arrange for warnings when nearly out of space. */ |
2115 | #ifndef SYSTEM_MALLOC | |
cc5f52cb RS |
2116 | #ifndef WINDOWSNT |
2117 | /* On Windows, this was done before dumping, and that once suffices. | |
2118 | Meanwhile, my_edata is not valid on Windows. */ | |
c339dc2e PE |
2119 | { |
2120 | extern char my_edata[]; | |
2121 | memory_warnings (my_edata, malloc_warning); | |
2122 | } | |
cc5f52cb | 2123 | #endif /* not WINDOWSNT */ |
ae9e757a | 2124 | #if defined (HAVE_PTHREAD) && !defined SYNC_INPUT |
aa477689 JD |
2125 | /* Pthread may call malloc before main, and then we will get an endless |
2126 | loop, because pthread_self (see alloc.c) calls malloc the first time | |
2127 | it is called on some systems. */ | |
2128 | reset_malloc_hooks (); | |
2129 | #endif | |
dd5ecd6b | 2130 | #endif /* not SYSTEM_MALLOC */ |
15aaf1b5 RS |
2131 | #ifdef DOUG_LEA_MALLOC |
2132 | malloc_state_ptr = malloc_get_state (); | |
f927c5ae | 2133 | #endif |
2b7377ca | 2134 | |
a74c5ec1 | 2135 | #ifdef USE_MMAP_FOR_BUFFERS |
2b7377ca GM |
2136 | mmap_set_vars (0); |
2137 | #endif | |
42a5b22f | 2138 | unexec (SSDATA (filename), !NILP (symfile) ? SSDATA (symfile) : 0); |
a74c5ec1 | 2139 | #ifdef USE_MMAP_FOR_BUFFERS |
2b7377ca GM |
2140 | mmap_set_vars (1); |
2141 | #endif | |
15aaf1b5 RS |
2142 | #ifdef DOUG_LEA_MALLOC |
2143 | free (malloc_state_ptr); | |
2144 | #endif | |
f927c5ae JB |
2145 | |
2146 | Vpurify_flag = tem; | |
2147 | ||
1b7ddf4f | 2148 | return unbind_to (count, Qnil); |
f927c5ae JB |
2149 | } |
2150 | ||
f927c5ae JB |
2151 | #endif /* not CANNOT_DUMP */ |
2152 | \f | |
68c45bf0 PE |
2153 | #if HAVE_SETLOCALE |
2154 | /* Recover from setlocale (LC_ALL, ""). */ | |
2155 | void | |
d5a3eaaf | 2156 | fixup_locale (void) |
68c45bf0 | 2157 | { |
68c45bf0 PE |
2158 | /* The Emacs Lisp reader needs LC_NUMERIC to be "C", |
2159 | so that numbers are read and printed properly for Emacs Lisp. */ | |
2160 | setlocale (LC_NUMERIC, "C"); | |
68c45bf0 PE |
2161 | } |
2162 | ||
0c8559bb PE |
2163 | /* Set system locale CATEGORY, with previous locale *PLOCALE, to |
2164 | DESIRED_LOCALE. */ | |
68c45bf0 | 2165 | static void |
dd4c5104 | 2166 | synchronize_locale (int category, Lisp_Object *plocale, Lisp_Object desired_locale) |
68c45bf0 | 2167 | { |
0c8559bb PE |
2168 | if (! EQ (*plocale, desired_locale)) |
2169 | { | |
2170 | *plocale = desired_locale; | |
2171 | setlocale (category, (STRINGP (desired_locale) | |
51b59d79 | 2172 | ? SSDATA (desired_locale) |
0c8559bb PE |
2173 | : "")); |
2174 | } | |
68c45bf0 PE |
2175 | } |
2176 | ||
ca9c0567 | 2177 | /* Set system time locale to match Vsystem_time_locale, if possible. */ |
68c45bf0 | 2178 | void |
d5a3eaaf | 2179 | synchronize_system_time_locale (void) |
68c45bf0 | 2180 | { |
ca9c0567 PE |
2181 | synchronize_locale (LC_TIME, &Vprevious_system_time_locale, |
2182 | Vsystem_time_locale); | |
68c45bf0 PE |
2183 | } |
2184 | ||
ca9c0567 PE |
2185 | /* Set system messages locale to match Vsystem_messages_locale, if |
2186 | possible. */ | |
68c45bf0 | 2187 | void |
d5a3eaaf | 2188 | synchronize_system_messages_locale (void) |
68c45bf0 PE |
2189 | { |
2190 | #ifdef LC_MESSAGES | |
ca9c0567 PE |
2191 | synchronize_locale (LC_MESSAGES, &Vprevious_system_messages_locale, |
2192 | Vsystem_messages_locale); | |
68c45bf0 PE |
2193 | #endif |
2194 | } | |
2195 | #endif /* HAVE_SETLOCALE */ | |
2196 | \f | |
f927c5ae JB |
2197 | |
2198 | Lisp_Object | |
a8fe7202 | 2199 | decode_env_path (const char *evarname, const char *defalt) |
f927c5ae | 2200 | { |
a8fe7202 | 2201 | const char *path, *p; |
213d0b1f | 2202 | Lisp_Object lpath, element, tem; |
76151e2c | 2203 | #ifdef WINDOWSNT |
1882aa38 | 2204 | bool defaulted = 0; |
76151e2c EZ |
2205 | const char *emacs_dir = egetenv ("emacs_dir"); |
2206 | static const char *emacs_dir_env = "%emacs_dir%/"; | |
2207 | const size_t emacs_dir_len = strlen (emacs_dir_env); | |
2208 | #endif | |
f927c5ae | 2209 | |
2447c626 JB |
2210 | /* It's okay to use getenv here, because this function is only used |
2211 | to initialize variables when Emacs starts up, and isn't called | |
2212 | after that. */ | |
e065a56e | 2213 | if (evarname != 0) |
a8fe7202 | 2214 | path = getenv (evarname); |
e065a56e JB |
2215 | else |
2216 | path = 0; | |
f927c5ae | 2217 | if (!path) |
76151e2c EZ |
2218 | { |
2219 | path = defalt; | |
8671676c | 2220 | #ifdef WINDOWSNT |
76151e2c | 2221 | defaulted = 1; |
8671676c | 2222 | #endif |
76151e2c | 2223 | } |
6a30e6d6 RS |
2224 | #ifdef DOS_NT |
2225 | /* Ensure values from the environment use the proper directory separator. */ | |
2226 | if (path) | |
2227 | { | |
a8fe7202 AS |
2228 | char *path_copy = alloca (strlen (path) + 1); |
2229 | strcpy (path_copy, path); | |
2230 | dostounix_filename (path_copy); | |
2231 | path = path_copy; | |
6a30e6d6 RS |
2232 | } |
2233 | #endif | |
f927c5ae JB |
2234 | lpath = Qnil; |
2235 | while (1) | |
2236 | { | |
8966b757 | 2237 | p = strchr (path, SEPCHAR); |
a8fe7202 AS |
2238 | if (!p) |
2239 | p = path + strlen (path); | |
213d0b1f RS |
2240 | element = (p - path ? make_string (path, p - path) |
2241 | : build_string (".")); | |
76151e2c EZ |
2242 | #ifdef WINDOWSNT |
2243 | /* Relative file names in the default path are interpreted as | |
2244 | being relative to $emacs_dir. */ | |
2245 | if (emacs_dir && defaulted | |
2246 | && strncmp (path, emacs_dir_env, emacs_dir_len) == 0) | |
2247 | element = Fexpand_file_name (Fsubstring (element, | |
2248 | make_number (emacs_dir_len), | |
2249 | Qnil), | |
2250 | build_string (emacs_dir)); | |
2251 | #endif | |
213d0b1f RS |
2252 | |
2253 | /* Add /: to the front of the name | |
2254 | if it would otherwise be treated as magic. */ | |
2255 | tem = Ffind_file_name_handler (element, Qt); | |
ca3df2d5 RS |
2256 | |
2257 | /* However, if the handler says "I'm safe", | |
2258 | don't bother adding /:. */ | |
2259 | if (SYMBOLP (tem)) | |
2260 | { | |
2261 | Lisp_Object prop; | |
2262 | prop = Fget (tem, intern ("safe-magic")); | |
2263 | if (! NILP (prop)) | |
2264 | tem = Qnil; | |
2265 | } | |
2266 | ||
213d0b1f RS |
2267 | if (! NILP (tem)) |
2268 | element = concat2 (build_string ("/:"), element); | |
2269 | ||
2270 | lpath = Fcons (element, lpath); | |
f927c5ae JB |
2271 | if (*p) |
2272 | path = p + 1; | |
2273 | else | |
2274 | break; | |
2275 | } | |
2276 | return Fnreverse (lpath); | |
2277 | } | |
2278 | ||
eab2ee89 | 2279 | DEFUN ("daemonp", Fdaemonp, Sdaemonp, 0, 0, 0, |
4ff029f6 DN |
2280 | doc: /* Return non-nil if the current emacs process is a daemon. |
2281 | If the daemon was given a name argument, return that name. */) | |
5842a27b | 2282 | (void) |
eab2ee89 | 2283 | { |
fc012771 | 2284 | if (IS_DAEMON) |
4ff029f6 DN |
2285 | if (daemon_name) |
2286 | return build_string (daemon_name); | |
2287 | else | |
2288 | return Qt; | |
2289 | else | |
2290 | return Qnil; | |
eab2ee89 DN |
2291 | } |
2292 | ||
5790ef40 | 2293 | DEFUN ("daemon-initialized", Fdaemon_initialized, Sdaemon_initialized, 0, 0, 0, |
fc012771 SM |
2294 | doc: /* Mark the Emacs daemon as being initialized. |
2295 | This finishes the daemonization process by doing the other half of detaching | |
2296 | from the parent process and its tty file descriptors. */) | |
5842a27b | 2297 | (void) |
5790ef40 DN |
2298 | { |
2299 | int nfd; | |
1882aa38 | 2300 | bool err = 0; |
5790ef40 | 2301 | |
fc012771 | 2302 | if (!IS_DAEMON) |
5790ef40 DN |
2303 | error ("This function can only be called if emacs is run as a daemon"); |
2304 | ||
2305 | if (daemon_pipe[1] < 0) | |
2306 | error ("The daemon has already been initialized"); | |
2307 | ||
2308 | if (NILP (Vafter_init_time)) | |
2309 | error ("This function can only be called after loading the init files"); | |
2310 | ||
2311 | /* Get rid of stdin, stdout and stderr. */ | |
29dadb54 | 2312 | nfd = open ("/dev/null", O_RDWR); |
dc1ca6a8 PE |
2313 | err |= nfd < 0; |
2314 | err |= dup2 (nfd, 0) < 0; | |
2315 | err |= dup2 (nfd, 1) < 0; | |
2316 | err |= dup2 (nfd, 2) < 0; | |
2317 | err |= close (nfd) != 0; | |
5790ef40 | 2318 | |
fc012771 SM |
2319 | /* Closing the pipe will notify the parent that it can exit. |
2320 | FIXME: In case some other process inherited the pipe, closing it here | |
2321 | won't notify the parent because it's still open elsewhere, so we | |
2322 | additionally send a byte, just to make sure the parent really exits. | |
2323 | Instead, we should probably close the pipe in start-process and | |
2324 | call-process to make sure the pipe is never inherited by | |
2325 | subprocesses. */ | |
dc1ca6a8 PE |
2326 | err |= write (daemon_pipe[1], "\n", 1) < 0; |
2327 | err |= close (daemon_pipe[1]) != 0; | |
5790ef40 DN |
2328 | /* Set it to an invalid value so we know we've already run this function. */ |
2329 | daemon_pipe[1] = -1; | |
dc1ca6a8 PE |
2330 | |
2331 | if (err) | |
2332 | error ("I/O error during daemon initialization"); | |
5790ef40 DN |
2333 | return Qt; |
2334 | } | |
2335 | ||
dfcf069d | 2336 | void |
d5a3eaaf | 2337 | syms_of_emacs (void) |
f927c5ae | 2338 | { |
cd3520a4 JB |
2339 | DEFSYM (Qfile_name_handler_alist, "file-name-handler-alist"); |
2340 | DEFSYM (Qrisky_local_variable, "risky-local-variable"); | |
6c07aac2 | 2341 | DEFSYM (Qkill_emacs, "kill-emacs"); |
213d0b1f | 2342 | |
83591e66 | 2343 | #ifndef CANNOT_DUMP |
f927c5ae JB |
2344 | defsubr (&Sdump_emacs); |
2345 | #endif | |
2346 | ||
2347 | defsubr (&Skill_emacs); | |
2348 | ||
59653951 | 2349 | defsubr (&Sinvocation_name); |
ace40a69 | 2350 | defsubr (&Sinvocation_directory); |
eab2ee89 | 2351 | defsubr (&Sdaemonp); |
5790ef40 | 2352 | defsubr (&Sdaemon_initialized); |
59653951 | 2353 | |
29208e82 | 2354 | DEFVAR_LISP ("command-line-args", Vcommand_line_args, |
2a9d2ed6 RS |
2355 | doc: /* Args passed by shell to Emacs, as a list of strings. |
2356 | Many arguments are deleted from the list as they are processed. */); | |
f927c5ae | 2357 | |
29208e82 | 2358 | DEFVAR_LISP ("system-type", Vsystem_type, |
cf59a374 | 2359 | doc: /* The value is a symbol indicating the type of operating system you are using. |
40a8993a | 2360 | Special values: |
cf59a374 GM |
2361 | `gnu' compiled for a GNU Hurd system. |
2362 | `gnu/linux' compiled for a GNU/Linux system. | |
2363 | `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel. | |
2364 | `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...). | |
2365 | `ms-dos' compiled as an MS-DOS application. | |
2366 | `windows-nt' compiled as a native W32 application. | |
2367 | `cygwin' compiled using the Cygwin library. | |
bd6bc222 GM |
2368 | Anything else (in Emacs 24.1, the possibilities are: aix, berkeley-unix, |
2369 | hpux, irix, usg-unix-v) indicates some sort of Unix system. */); | |
d67b4f80 | 2370 | Vsystem_type = intern_c_string (SYSTEM_TYPE); |
6edd2f3d | 2371 | /* See configure.ac (and config.nt) for the possible SYSTEM_TYPEs. */ |
f927c5ae | 2372 | |
29208e82 | 2373 | DEFVAR_LISP ("system-configuration", Vsystem_configuration, |
7db35a48 PJ |
2374 | doc: /* Value is string indicating configuration Emacs was built for. |
2375 | On MS-Windows, the value reflects the OS flavor and version on which | |
2376 | Emacs is running. */); | |
f7511647 | 2377 | Vsystem_configuration = build_string (EMACS_CONFIGURATION); |
271c7b7c | 2378 | |
29208e82 | 2379 | DEFVAR_LISP ("system-configuration-options", Vsystem_configuration_options, |
7db35a48 | 2380 | doc: /* String containing the configuration options Emacs was built with. */); |
f0fc0b1a KH |
2381 | Vsystem_configuration_options = build_string (EMACS_CONFIG_OPTIONS); |
2382 | ||
29208e82 | 2383 | DEFVAR_BOOL ("noninteractive", noninteractive1, |
7db35a48 | 2384 | doc: /* Non-nil means Emacs is running without interactive terminal. */); |
e5d77022 | 2385 | |
29208e82 | 2386 | DEFVAR_LISP ("kill-emacs-hook", Vkill_emacs_hook, |
e5d9c0d1 | 2387 | doc: /* Hook run when `kill-emacs' is called. |
d77b70e5 | 2388 | Since `kill-emacs' may be invoked when the terminal is disconnected (or |
7db35a48 PJ |
2389 | in other similar situations), functions placed on this hook should not |
2390 | expect to be able to interact with the user. To ask for confirmation, | |
d77b70e5 MR |
2391 | see `kill-emacs-query-functions' instead. |
2392 | ||
9c524fcb GM |
2393 | Before Emacs 24.1, the hook was not run in batch mode, i.e., if |
2394 | `noninteractive' was non-nil. */); | |
edc8ae07 | 2395 | Vkill_emacs_hook = Qnil; |
3005da00 | 2396 | |
29208e82 | 2397 | DEFVAR_LISP ("path-separator", Vpath_separator, |
c7ed3276 EZ |
2398 | doc: /* String containing the character that separates directories in |
2399 | search paths, such as PATH and other similar environment variables. */); | |
074a066b GV |
2400 | { |
2401 | char c = SEPCHAR; | |
2402 | Vpath_separator = make_string (&c, 1); | |
2403 | } | |
59653951 | 2404 | |
29208e82 | 2405 | DEFVAR_LISP ("invocation-name", Vinvocation_name, |
7db35a48 PJ |
2406 | doc: /* The program name that was used to run Emacs. |
2407 | Any directory names are omitted. */); | |
f67de86f | 2408 | |
29208e82 | 2409 | DEFVAR_LISP ("invocation-directory", Vinvocation_directory, |
7db35a48 PJ |
2410 | doc: /* The directory in which the Emacs executable was found, to run it. |
2411 | The value is nil if that directory's name is not known. */); | |
f67de86f | 2412 | |
29208e82 | 2413 | DEFVAR_LISP ("installation-directory", Vinstallation_directory, |
7db35a48 | 2414 | doc: /* A directory within which to look for the `lib-src' and `etc' directories. |
74cc8ff9 GM |
2415 | In an installed Emacs, this is normally nil. It is non-nil if |
2416 | both `lib-src' (on MS-DOS, `info') and `etc' directories are found | |
1e2c5d95 GM |
2417 | within the variable `invocation-directory' or its parent. For example, |
2418 | this is the case when running an uninstalled Emacs executable from its | |
74cc8ff9 | 2419 | build directory. */); |
07f4d123 | 2420 | Vinstallation_directory = Qnil; |
68c45bf0 | 2421 | |
29208e82 | 2422 | DEFVAR_LISP ("system-messages-locale", Vsystem_messages_locale, |
7db35a48 | 2423 | doc: /* System locale for messages. */); |
ca9c0567 | 2424 | Vsystem_messages_locale = Qnil; |
68c45bf0 | 2425 | |
ca9c0567 | 2426 | DEFVAR_LISP ("previous-system-messages-locale", |
29208e82 | 2427 | Vprevious_system_messages_locale, |
7db35a48 | 2428 | doc: /* Most recently used system locale for messages. */); |
ca9c0567 | 2429 | Vprevious_system_messages_locale = Qnil; |
68c45bf0 | 2430 | |
29208e82 | 2431 | DEFVAR_LISP ("system-time-locale", Vsystem_time_locale, |
7db35a48 | 2432 | doc: /* System locale for time. */); |
ca9c0567 | 2433 | Vsystem_time_locale = Qnil; |
68c45bf0 | 2434 | |
29208e82 | 2435 | DEFVAR_LISP ("previous-system-time-locale", Vprevious_system_time_locale, |
7db35a48 | 2436 | doc: /* Most recently used system locale for time. */); |
ca9c0567 | 2437 | Vprevious_system_time_locale = Qnil; |
90503d96 | 2438 | |
29208e82 | 2439 | DEFVAR_LISP ("before-init-time", Vbefore_init_time, |
90503d96 CY |
2440 | doc: /* Value of `current-time' before Emacs begins initialization. */); |
2441 | Vbefore_init_time = Qnil; | |
2442 | ||
29208e82 | 2443 | DEFVAR_LISP ("after-init-time", Vafter_init_time, |
90503d96 CY |
2444 | doc: /* Value of `current-time' after loading the init files. |
2445 | This is nil during initialization. */); | |
2446 | Vafter_init_time = Qnil; | |
fc012771 | 2447 | |
29208e82 | 2448 | DEFVAR_BOOL ("inhibit-x-resources", inhibit_x_resources, |
9b68317c | 2449 | doc: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */); |
8686ac71 JB |
2450 | inhibit_x_resources = 0; |
2451 | ||
29208e82 | 2452 | DEFVAR_LISP ("emacs-copyright", Vemacs_copyright, |
8c5ff6dd KR |
2453 | doc: /* Short copyright string for this version of Emacs. */); |
2454 | Vemacs_copyright = build_string (emacs_copyright); | |
2455 | ||
29208e82 | 2456 | DEFVAR_LISP ("emacs-version", Vemacs_version, |
8c5ff6dd KR |
2457 | doc: /* Version numbers of this version of Emacs. */); |
2458 | Vemacs_version = build_string (emacs_version); | |
2459 | ||
29208e82 | 2460 | DEFVAR_LISP ("dynamic-library-alist", Vdynamic_library_alist, |
2e288d54 JB |
2461 | doc: /* Alist of dynamic libraries vs external files implementing them. |
2462 | Each element is a list (LIBRARY FILE...), where the car is a symbol | |
2463 | representing a supported external library, and the rest are strings giving | |
2464 | alternate filenames for that library. | |
2465 | ||
2466 | Emacs tries to load the library from the files in the order they appear on | |
2467 | the list; if none is loaded, the running session of Emacs won't have access | |
2468 | to that library. | |
2469 | ||
2470 | Note that image types `pbm' and `xbm' do not need entries in this variable | |
2471 | because they do not depend on external libraries and are always available. | |
2472 | ||
2473 | Also note that this is not a generic facility for accessing external | |
2474 | libraries; only those already known by Emacs will be loaded. */); | |
2475 | Vdynamic_library_alist = Qnil; | |
2476 | Fput (intern_c_string ("dynamic-library-alist"), Qrisky_local_variable, Qt); | |
2477 | ||
fc012771 SM |
2478 | /* Make sure IS_DAEMON starts up as false. */ |
2479 | daemon_pipe[1] = 0; | |
f927c5ae | 2480 | } |