Commit | Line | Data |
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f927c5ae | 1 | /* Fully extensible Emacs, running on Unix, intended for GNU. |
bd6bc222 | 2 | |
73b0cd50 | 3 | Copyright (C) 1985-1987, 1993-1995, 1997-1999, 2001-2011 |
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 | |
edd3ff1d JR |
32 | #ifdef WINDOWSNT |
33 | #include <fcntl.h> | |
52c7f9ee JR |
34 | #include <windows.h> /* just for w32.h */ |
35 | #include "w32.h" | |
c68a2829 | 36 | #include "w32heap.h" /* for prototype of sbrk */ |
edd3ff1d JR |
37 | #endif |
38 | ||
edfda783 AR |
39 | #ifdef NS_IMPL_GNUSTEP |
40 | /* At least under Debian, GSConfig is in a subdirectory. --Stef */ | |
41 | #include <GNUstepBase/GSConfig.h> | |
42 | #endif | |
43 | ||
f927c5ae JB |
44 | #include "lisp.h" |
45 | #include "commands.h" | |
bef79ee4 | 46 | #include "intervals.h" |
a08a816a | 47 | #include "buffer.h" |
3f6abfd7 | 48 | #include "window.h" |
f927c5ae | 49 | |
edc8ae07 | 50 | #include "systty.h" |
6c3a4e9d | 51 | #include "blockinput.h" |
8090eb09 | 52 | #include "syssignal.h" |
6c362a8b | 53 | #include "process.h" |
428a555e | 54 | #include "frame.h" |
5bda49c6 | 55 | #include "termhooks.h" |
dfcf069d | 56 | #include "keyboard.h" |
e35f6ff7 | 57 | #include "keymap.h" |
a41f8bed | 58 | |
8af55556 TZ |
59 | #ifdef HAVE_GNUTLS |
60 | #include "gnutls.h" | |
61 | #endif | |
62 | ||
3d608a86 J |
63 | #ifdef HAVE_NS |
64 | #include "nsterm.h" | |
65 | #endif | |
66 | ||
68c45bf0 PE |
67 | #ifdef HAVE_SETLOCALE |
68 | #include <locale.h> | |
69 | #endif | |
70 | ||
53c58b5d RS |
71 | #ifdef HAVE_SETRLIMIT |
72 | #include <sys/time.h> | |
73 | #include <sys/resource.h> | |
74 | #endif | |
75 | ||
dede2792 JD |
76 | #ifdef HAVE_PERSONALITY_LINUX32 |
77 | #include <sys/personality.h> | |
78 | #endif | |
79 | ||
f927c5ae JB |
80 | #ifndef O_RDWR |
81 | #define O_RDWR 2 | |
82 | #endif | |
83 | ||
f95c3f91 | 84 | #ifdef HAVE_SETPGID |
58eb6cf0 | 85 | #if !defined (USG) |
90553aa3 | 86 | #undef setpgrp |
f95c3f91 GM |
87 | #define setpgrp setpgid |
88 | #endif | |
2b7e8799 | 89 | #endif |
f95c3f91 | 90 | |
16fab143 | 91 | static const char emacs_version[] = VERSION; |
3f9b7090 | 92 | static const char emacs_copyright[] = "Copyright (C) 2011 Free Software Foundation, Inc."; |
8c5ff6dd | 93 | |
30aa3f19 GM |
94 | /* Make these values available in GDB, which doesn't see macros. */ |
95 | ||
6b61353c | 96 | #ifdef USE_LSB_TAG |
42c8bc9b | 97 | int gdb_use_lsb EXTERNALLY_VISIBLE = 1; |
6b61353c | 98 | #else |
42c8bc9b | 99 | int gdb_use_lsb EXTERNALLY_VISIBLE = 0; |
6b61353c | 100 | #endif |
6e5cb96f | 101 | #ifndef USE_LISP_UNION_TYPE |
42c8bc9b | 102 | int gdb_use_union EXTERNALLY_VISIBLE = 0; |
6b61353c | 103 | #else |
42c8bc9b | 104 | int gdb_use_union EXTERNALLY_VISIBLE = 1; |
6b61353c | 105 | #endif |
42c8bc9b DN |
106 | EMACS_INT gdb_valbits EXTERNALLY_VISIBLE = VALBITS; |
107 | EMACS_INT gdb_gctypebits EXTERNALLY_VISIBLE = GCTYPEBITS; | |
4f7cb96d | 108 | #if defined (DATA_SEG_BITS) && ! defined (USE_LSB_TAG) |
42c8bc9b | 109 | EMACS_INT gdb_data_seg_bits EXTERNALLY_VISIBLE = DATA_SEG_BITS; |
30aa3f19 | 110 | #else |
42c8bc9b | 111 | EMACS_INT gdb_data_seg_bits EXTERNALLY_VISIBLE = 0; |
30aa3f19 | 112 | #endif |
42c8bc9b DN |
113 | EMACS_INT PVEC_FLAG EXTERNALLY_VISIBLE = PSEUDOVECTOR_FLAG; |
114 | EMACS_INT gdb_array_mark_flag EXTERNALLY_VISIBLE = ARRAY_MARK_FLAG; | |
6baa02d6 EZ |
115 | /* GDB might say "No enum type named pvec_type" if we don't have at |
116 | least one symbol with that type, and then xbacktrace could fail. */ | |
42c8bc9b | 117 | enum pvec_type gdb_pvec_type EXTERNALLY_VISIBLE = PVEC_TYPE_MASK; |
30aa3f19 | 118 | |
7e9fa161 JB |
119 | /* Empty lisp strings. To avoid having to build any others. */ |
120 | Lisp_Object empty_unibyte_string, empty_multibyte_string; | |
f9a6326d | 121 | |
f927c5ae JB |
122 | /* Set nonzero after Emacs has started up the first time. |
123 | Prevents reinitialization of the Lisp world and keymaps | |
124 | on subsequent starts. */ | |
125 | int initialized; | |
126 | ||
15aaf1b5 RS |
127 | #ifdef DOUG_LEA_MALLOC |
128 | /* Preserves a pointer to the memory allocated that copies that | |
129 | static data inside glibc's malloc. */ | |
35f08c38 | 130 | static void *malloc_state_ptr; |
15aaf1b5 | 131 | /* From glibc, a routine that returns a copy of the malloc internal state. */ |
dd4c5104 | 132 | extern void *malloc_get_state (void); |
15aaf1b5 | 133 | /* From glibc, a routine that overwrites the malloc internal state. */ |
dd4c5104 | 134 | extern int malloc_set_state (void*); |
768c0c0f | 135 | /* Non-zero if the MALLOC_CHECK_ environment variable was set while |
7c9cd446 | 136 | dumping. Used to work around a bug in glibc's malloc. */ |
35f08c38 | 137 | static int malloc_using_checking; |
15aaf1b5 RS |
138 | #endif |
139 | ||
213d0b1f RS |
140 | Lisp_Object Qfile_name_handler_alist; |
141 | ||
9dc3366b GM |
142 | Lisp_Object Qrisky_local_variable; |
143 | ||
62973b41 | 144 | /* If non-zero, Emacs should not attempt to use a window-specific code, |
7db35a48 | 145 | but instead should use the virtual terminal under which it was started. */ |
f927c5ae JB |
146 | int inhibit_window_system; |
147 | ||
7db35a48 PJ |
148 | /* If non-zero, a filter or a sentinel is running. Tested to save the match |
149 | data on the first attempt to change it inside asynchronous code. */ | |
7074fde6 FP |
150 | int running_asynch_code; |
151 | ||
edfda783 | 152 | #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS) |
7db35a48 | 153 | /* If non-zero, -d was specified, meaning we're using some window system. */ |
f927c5ae JB |
154 | int display_arg; |
155 | #endif | |
156 | ||
157 | /* An address near the bottom of the stack. | |
158 | Tells GC how to save a copy of the stack. */ | |
159 | char *stack_bottom; | |
160 | ||
dede2792 JD |
161 | /* The address where the heap starts (from the first sbrk (0) call). */ |
162 | static void *my_heap_start; | |
163 | ||
164 | /* The gap between BSS end and heap start as far as we can tell. */ | |
165 | static unsigned long heap_bss_diff; | |
166 | ||
f927c5ae | 167 | /* Nonzero means running Emacs without interactive terminal. */ |
f927c5ae JB |
168 | int noninteractive; |
169 | ||
66b7b0fe GM |
170 | /* Nonzero means remove site-lisp directories from load-path. */ |
171 | int no_site_lisp; | |
172 | ||
4ff029f6 DN |
173 | /* Name for the server started by the daemon.*/ |
174 | static char *daemon_name; | |
eab2ee89 | 175 | |
5790ef40 DN |
176 | /* Pipe used to send exit notification to the daemon parent at |
177 | startup. */ | |
ff808935 | 178 | int daemon_pipe[2]; |
fc012771 | 179 | |
e29f86e4 RS |
180 | /* Save argv and argc. */ |
181 | char **initial_argv; | |
182 | int initial_argc; | |
081bef73 | 183 | |
dd4c5104 | 184 | static void sort_args (int argc, char **argv); |
35f08c38 | 185 | static void syms_of_emacs (void); |
bd4590ba | 186 | |
6b61353c KH |
187 | /* MSVC needs each string be shorter than 2048 bytes, so the usage |
188 | strings below are split to not overflow this limit. */ | |
73ebcd25 | 189 | #define USAGE1 "\ |
bd4590ba GM |
190 | Usage: %s [OPTION-OR-FILENAME]...\n\ |
191 | \n\ | |
192 | Run Emacs, the extensible, customizable, self-documenting real-time\n\ | |
193 | display editor. The recommended way to start Emacs for normal editing\n\ | |
194 | is with no options at all.\n\ | |
195 | \n\ | |
49ca717b | 196 | Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\ |
bd4590ba GM |
197 | read the main documentation for these command-line arguments.\n\ |
198 | \n\ | |
199 | Initialization options:\n\ | |
200 | \n\ | |
6b61353c | 201 | --batch do not do interactive display; implies -q\n\ |
f63d0028 | 202 | --chdir DIR change to directory DIR\n\ |
598898a7 | 203 | --daemon start a server in the background\n\ |
6b61353c KH |
204 | --debug-init enable Emacs Lisp debugger for init file\n\ |
205 | --display, -d DISPLAY use X server DISPLAY\n\ | |
6b61353c KH |
206 | --no-desktop do not load a saved desktop\n\ |
207 | --no-init-file, -q load neither ~/.emacs nor default.el\n\ | |
208 | --no-shared-memory, -nl do not use shared memory\n\ | |
209 | --no-site-file do not load site-start.el\n\ | |
66b7b0fe | 210 | --no-site-lisp, -nsl do not add site-lisp directories to load-path\n\ |
6b61353c | 211 | --no-splash do not display a splash screen on startup\n\ |
2ff86b4e | 212 | --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\ |
66b7b0fe GM |
213 | --quick, -Q equivalent to:\n\ |
214 | -q --no-site-file --no-site-lisp --no-splash\n\ | |
6b61353c KH |
215 | --script FILE run FILE as an Emacs Lisp script\n\ |
216 | --terminal, -t DEVICE use DEVICE for terminal I/O\n\ | |
6b61353c KH |
217 | --user, -u USER load ~USER/.emacs instead of your own\n\ |
218 | \n%s" | |
219 | ||
220 | #define USAGE2 "\ | |
bd4590ba GM |
221 | Action options:\n\ |
222 | \n\ | |
6b61353c | 223 | FILE visit FILE using find-file\n\ |
9020b223 GM |
224 | +LINE go to line LINE in next FILE\n\ |
225 | +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\ | |
6b61353c KH |
226 | --directory, -L DIR add DIR to variable load-path\n\ |
227 | --eval EXPR evaluate Emacs Lisp expression EXPR\n\ | |
228 | --execute EXPR evaluate Emacs Lisp expression EXPR\n\ | |
229 | --file FILE visit FILE using find-file\n\ | |
230 | --find-file FILE visit FILE using find-file\n\ | |
231 | --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\ | |
232 | --insert FILE insert contents of FILE into current buffer\n\ | |
233 | --kill exit without asking for confirmation\n\ | |
234 | --load, -l FILE load Emacs Lisp FILE using the load function\n\ | |
235 | --visit FILE visit FILE using find-file\n\ | |
73ebcd25 AI |
236 | \n" |
237 | ||
6b61353c | 238 | #define USAGE3 "\ |
5b2ca26b | 239 | Display options:\n\ |
bd4590ba | 240 | \n\ |
6b61353c | 241 | --background-color, -bg COLOR window background color\n\ |
2ff86b4e NR |
242 | --basic-display, -D disable many display features;\n\ |
243 | used for debugging Emacs\n\ | |
6b61353c KH |
244 | --border-color, -bd COLOR main border color\n\ |
245 | --border-width, -bw WIDTH width of main border\n\ | |
ced74849 | 246 | --color, --color=MODE override color mode for character terminals;\n\ |
62973b41 JB |
247 | MODE defaults to `auto', and\n\ |
248 | can also be `never', `always',\n\ | |
6b61353c KH |
249 | or a mode name like `ansi8'\n\ |
250 | --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\ | |
251 | --font, -fn FONT default font; must be fixed-width\n\ | |
252 | --foreground-color, -fg COLOR window foreground color\n\ | |
253 | --fullheight, -fh make the first frame high as the screen\n\ | |
62973b41 | 254 | --fullscreen, -fs make the first frame fullscreen\n\ |
6b61353c | 255 | --fullwidth, -fw make the first frame wide as the screen\n\ |
3f1c6666 | 256 | --maximized, -mm make the first frame maximized\n\ |
6b61353c | 257 | --geometry, -g GEOMETRY window geometry\n\ |
f9e36a6d | 258 | --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\ |
6b61353c KH |
259 | --iconic start Emacs in iconified state\n\ |
260 | --internal-border, -ib WIDTH width between text and main border\n\ | |
261 | --line-spacing, -lsp PIXELS additional space to put between lines\n\ | |
262 | --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\ | |
263 | --name NAME title for initial Emacs frame\n\ | |
49ca717b | 264 | --no-blinking-cursor, -nbc disable blinking cursor\n\ |
6b61353c KH |
265 | --reverse-video, -r, -rv switch foreground and background\n\ |
266 | --title, -T TITLE title for initial Emacs frame\n\ | |
267 | --vertical-scroll-bars, -vb enable vertical scroll bars\n\ | |
268 | --xrm XRESOURCES set additional X resources\n\ | |
1540a61a | 269 | --parent-id XID set parent window\n\ |
6b61353c KH |
270 | --help display this help and exit\n\ |
271 | --version output version information and exit\n\ | |
07beadff JR |
272 | \n" |
273 | ||
274 | #define USAGE4 "\ | |
bd4590ba GM |
275 | You can generally also specify long option names with a single -; for\n\ |
276 | example, -batch as well as --batch. You can use any unambiguous\n\ | |
277 | abbreviation for a --option.\n\ | |
278 | \n\ | |
279 | Various environment variables and window system resources also affect\n\ | |
280 | Emacs' operation. See the main documentation.\n\ | |
07beadff | 281 | \n\ |
17284745 | 282 | Report bugs to bug-gnu-emacs@gnu.org. First, please see the Bugs\n\ |
bd4590ba GM |
283 | section of the Emacs manual or the file BUGS.\n" |
284 | ||
f927c5ae | 285 | \f |
7db35a48 | 286 | /* Signal code for the fatal signal that was received. */ |
35f08c38 | 287 | static int fatal_error_code; |
f927c5ae | 288 | |
7db35a48 | 289 | /* Nonzero if handling a fatal error already. */ |
f927c5ae JB |
290 | int fatal_error_in_progress; |
291 | ||
7db35a48 | 292 | /* If non-null, call this function from fatal_error_signal before |
4fab758d GM |
293 | committing suicide. */ |
294 | ||
35f08c38 | 295 | static void (*fatal_error_signal_hook) (void); |
4fab758d | 296 | |
3e9de9f6 | 297 | #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD |
9e2a2647 DN |
298 | /* When compiled with GTK and running under Gnome, |
299 | multiple threads may be created. Keep track of our main | |
3e9de9f6 | 300 | thread to make sure signals are delivered to it (see syssignal.h). */ |
333f1b6f JD |
301 | |
302 | pthread_t main_thread; | |
303 | #endif | |
304 | ||
4fab758d | 305 | |
7db35a48 | 306 | /* Handle bus errors, invalid instruction, etc. */ |
35f08c38 PE |
307 | #ifndef FLOAT_CATCH_SIGILL |
308 | static | |
309 | #endif | |
9af30bdf | 310 | void |
dd4c5104 | 311 | fatal_error_signal (int sig) |
f927c5ae | 312 | { |
333f1b6f | 313 | SIGNAL_THREAD_CHECK (sig); |
f927c5ae JB |
314 | fatal_error_code = sig; |
315 | signal (sig, SIG_DFL); | |
316 | ||
061b7f94 RS |
317 | TOTALLY_UNBLOCK_INPUT; |
318 | ||
f927c5ae | 319 | /* If fatal error occurs in code below, avoid infinite recursion. */ |
8090eb09 JB |
320 | if (! fatal_error_in_progress) |
321 | { | |
322 | fatal_error_in_progress = 1; | |
f927c5ae | 323 | |
9c524fcb | 324 | if (sig == SIGTERM || sig == SIGHUP || sig == SIGINT) |
f63d0028 JD |
325 | Fkill_emacs (make_number (sig)); |
326 | ||
f7ab4e3d | 327 | shut_down_emacs (sig, 0, Qnil); |
8090eb09 | 328 | } |
f927c5ae | 329 | |
8090eb09 JB |
330 | /* Signal the same code; this time it will really be fatal. |
331 | Remember that since we're in a signal handler, the signal we're | |
332 | going to send is probably blocked, so we have to unblock it if we | |
333 | want to really receive it. */ | |
29b89fe0 | 334 | #ifndef MSDOS |
a90538cb | 335 | sigunblock (sigmask (fatal_error_code)); |
29b89fe0 | 336 | #endif |
4fab758d GM |
337 | |
338 | if (fatal_error_signal_hook) | |
339 | fatal_error_signal_hook (); | |
7db35a48 | 340 | |
f927c5ae | 341 | kill (getpid (), fatal_error_code); |
f927c5ae | 342 | } |
271c7b7c RS |
343 | |
344 | #ifdef SIGDANGER | |
345 | ||
16c323ee | 346 | /* Handler for SIGDANGER. */ |
9af30bdf | 347 | void |
271c7b7c RS |
348 | memory_warning_signal (sig) |
349 | int sig; | |
350 | { | |
351 | signal (sig, memory_warning_signal); | |
333f1b6f | 352 | SIGNAL_THREAD_CHECK (sig); |
271c7b7c RS |
353 | |
354 | malloc_warning ("Operating system warns that virtual memory is running low.\n"); | |
55796183 RS |
355 | |
356 | /* It might be unsafe to call do_auto_save now. */ | |
357 | force_auto_save_soon (); | |
271c7b7c RS |
358 | } |
359 | #endif | |
fcf01ad3 RS |
360 | |
361 | /* We define abort, rather than using it from the library, | |
c9fe9cce | 362 | so that GDB can return from a breakpoint here. |
7db35a48 | 363 | MSDOS has its own definition in msdos.c. */ |
fcf01ad3 | 364 | |
37e2fdd2 | 365 | #if ! defined (DOS_NT) && ! defined (NO_ABORT) |
ca9c0567 | 366 | |
4624371d | 367 | void |
d5a3eaaf | 368 | abort (void) |
fcf01ad3 RS |
369 | { |
370 | kill (getpid (), SIGABRT); | |
37e2fdd2 RS |
371 | /* This shouldn't be executed, but it prevents a warning. */ |
372 | exit (1); | |
fcf01ad3 | 373 | } |
c9fe9cce | 374 | #endif |
fcf01ad3 | 375 | |
f927c5ae | 376 | \f |
7db35a48 | 377 | /* Code for dealing with Lisp access to the Unix command line. */ |
f927c5ae | 378 | |
dfcf069d | 379 | static void |
dd4c5104 | 380 | init_cmdargs (int argc, char **argv, int skip_args) |
f927c5ae JB |
381 | { |
382 | register int i; | |
74f10ca7 | 383 | Lisp_Object name, dir, handler; |
aed13378 | 384 | int count = SPECPDL_INDEX (); |
213d0b1f | 385 | Lisp_Object raw_name; |
f927c5ae | 386 | |
e29f86e4 RS |
387 | initial_argv = argv; |
388 | initial_argc = argc; | |
389 | ||
213d0b1f RS |
390 | raw_name = build_string (argv[0]); |
391 | ||
392 | /* Add /: to the front of the name | |
393 | if it would otherwise be treated as magic. */ | |
74f10ca7 PE |
394 | handler = Ffind_file_name_handler (raw_name, Qt); |
395 | if (! NILP (handler)) | |
213d0b1f RS |
396 | raw_name = concat2 (build_string ("/:"), raw_name); |
397 | ||
398 | Vinvocation_name = Ffile_name_nondirectory (raw_name); | |
399 | Vinvocation_directory = Ffile_name_directory (raw_name); | |
400 | ||
ace40a69 RS |
401 | /* If we got no directory in argv[0], search PATH to find where |
402 | Emacs actually came from. */ | |
403 | if (NILP (Vinvocation_directory)) | |
404 | { | |
405 | Lisp_Object found; | |
406 | int yes = openp (Vexec_path, Vinvocation_name, | |
10c0915e | 407 | Vexec_suffixes, &found, make_number (X_OK)); |
e443f843 | 408 | if (yes == 1) |
213d0b1f RS |
409 | { |
410 | /* Add /: to the front of the name | |
411 | if it would otherwise be treated as magic. */ | |
74f10ca7 PE |
412 | handler = Ffind_file_name_handler (found, Qt); |
413 | if (! NILP (handler)) | |
213d0b1f RS |
414 | found = concat2 (build_string ("/:"), found); |
415 | Vinvocation_directory = Ffile_name_directory (found); | |
416 | } | |
ace40a69 | 417 | } |
59653951 | 418 | |
4133b300 RS |
419 | if (!NILP (Vinvocation_directory) |
420 | && NILP (Ffile_name_absolute_p (Vinvocation_directory))) | |
213d0b1f RS |
421 | /* Emacs was started with relative path, like ./emacs. |
422 | Make it absolute. */ | |
4133b300 RS |
423 | Vinvocation_directory = Fexpand_file_name (Vinvocation_directory, Qnil); |
424 | ||
07f4d123 RS |
425 | Vinstallation_directory = Qnil; |
426 | ||
427 | if (!NILP (Vinvocation_directory)) | |
428 | { | |
429 | dir = Vinvocation_directory; | |
430 | name = Fexpand_file_name (Vinvocation_name, dir); | |
431 | while (1) | |
432 | { | |
f5ab9736 | 433 | Lisp_Object tem, lib_src_exists; |
07f4d123 RS |
434 | Lisp_Object etc_exists, info_exists; |
435 | ||
f5ab9736 RS |
436 | /* See if dir contains subdirs for use by Emacs. |
437 | Check for the ones that would exist in a build directory, | |
438 | not including lisp and info. */ | |
439 | tem = Fexpand_file_name (build_string ("lib-src"), dir); | |
440 | lib_src_exists = Ffile_exists_p (tem); | |
de004cc6 | 441 | |
70344b34 | 442 | #ifdef MSDOS |
de004cc6 RS |
443 | /* MSDOS installations frequently remove lib-src, but we still |
444 | must set installation-directory, or else info won't find | |
445 | its files (it uses the value of installation-directory). */ | |
446 | tem = Fexpand_file_name (build_string ("info"), dir); | |
447 | info_exists = Ffile_exists_p (tem); | |
70344b34 EZ |
448 | #else |
449 | info_exists = Qnil; | |
450 | #endif | |
de004cc6 RS |
451 | |
452 | if (!NILP (lib_src_exists) || !NILP (info_exists)) | |
07f4d123 | 453 | { |
f5ab9736 RS |
454 | tem = Fexpand_file_name (build_string ("etc"), dir); |
455 | etc_exists = Ffile_exists_p (tem); | |
456 | if (!NILP (etc_exists)) | |
07f4d123 | 457 | { |
f5ab9736 RS |
458 | Vinstallation_directory |
459 | = Ffile_name_as_directory (dir); | |
460 | break; | |
07f4d123 RS |
461 | } |
462 | } | |
463 | ||
464 | /* See if dir's parent contains those subdirs. */ | |
f5ab9736 RS |
465 | tem = Fexpand_file_name (build_string ("../lib-src"), dir); |
466 | lib_src_exists = Ffile_exists_p (tem); | |
de004cc6 | 467 | |
70344b34 EZ |
468 | |
469 | #ifdef MSDOS | |
470 | /* See the MSDOS commentary above. */ | |
de004cc6 RS |
471 | tem = Fexpand_file_name (build_string ("../info"), dir); |
472 | info_exists = Ffile_exists_p (tem); | |
70344b34 EZ |
473 | #else |
474 | info_exists = Qnil; | |
475 | #endif | |
de004cc6 RS |
476 | |
477 | if (!NILP (lib_src_exists) || !NILP (info_exists)) | |
07f4d123 | 478 | { |
f5ab9736 RS |
479 | tem = Fexpand_file_name (build_string ("../etc"), dir); |
480 | etc_exists = Ffile_exists_p (tem); | |
481 | if (!NILP (etc_exists)) | |
07f4d123 | 482 | { |
f5ab9736 RS |
483 | tem = Fexpand_file_name (build_string (".."), dir); |
484 | Vinstallation_directory | |
485 | = Ffile_name_as_directory (tem); | |
486 | break; | |
07f4d123 RS |
487 | } |
488 | } | |
489 | ||
490 | /* If the Emacs executable is actually a link, | |
491 | next try the dir that the link points into. */ | |
492 | tem = Ffile_symlink_p (name); | |
493 | if (!NILP (tem)) | |
494 | { | |
260ec24d | 495 | name = Fexpand_file_name (tem, dir); |
07f4d123 RS |
496 | dir = Ffile_name_directory (name); |
497 | } | |
498 | else | |
499 | break; | |
500 | } | |
501 | } | |
502 | ||
f927c5ae JB |
503 | Vcommand_line_args = Qnil; |
504 | ||
505 | for (i = argc - 1; i >= 0; i--) | |
506 | { | |
507 | if (i == 0 || i > skip_args) | |
a520393d KH |
508 | /* For the moment, we keep arguments as is in unibyte strings. |
509 | They are decoded in the function command-line after we know | |
510 | locale-coding-system. */ | |
f927c5ae | 511 | Vcommand_line_args |
68db37aa | 512 | = Fcons (make_unibyte_string (argv[i], strlen (argv[i])), |
a520393d | 513 | Vcommand_line_args); |
f927c5ae | 514 | } |
213d0b1f RS |
515 | |
516 | unbind_to (count, Qnil); | |
f927c5ae | 517 | } |
59653951 JB |
518 | |
519 | DEFUN ("invocation-name", Finvocation_name, Sinvocation_name, 0, 0, 0, | |
7db35a48 PJ |
520 | doc: /* Return the program name that was used to run Emacs. |
521 | Any directory names are omitted. */) | |
5842a27b | 522 | (void) |
59653951 JB |
523 | { |
524 | return Fcopy_sequence (Vinvocation_name); | |
525 | } | |
526 | ||
ace40a69 | 527 | DEFUN ("invocation-directory", Finvocation_directory, Sinvocation_directory, |
7db35a48 PJ |
528 | 0, 0, 0, |
529 | doc: /* Return the directory name in which the Emacs executable was located. */) | |
5842a27b | 530 | (void) |
ace40a69 RS |
531 | { |
532 | return Fcopy_sequence (Vinvocation_directory); | |
533 | } | |
534 | ||
f927c5ae | 535 | \f |
0269dedb RS |
536 | #ifdef HAVE_TZSET |
537 | /* A valid but unlikely value for the TZ environment value. | |
538 | It is OK (though a bit slower) if the user actually chooses this value. */ | |
539 | static char dump_tz[] = "UtC0"; | |
540 | #endif | |
541 | ||
a90538cb | 542 | #ifndef ORDINARY_LINK |
efd241cc RS |
543 | /* We don't include crtbegin.o and crtend.o in the link, |
544 | so these functions and variables might be missed. | |
545 | Provide dummy definitions to avoid error. | |
546 | (We don't have any real constructors or destructors.) */ | |
547 | #ifdef __GNUC__ | |
244fc23d PE |
548 | |
549 | /* Define a dummy function F. Declare F too, to pacify gcc | |
550 | -Wmissing-prototypes. */ | |
35f08c38 PE |
551 | #define DEFINE_DUMMY_FUNCTION(f) \ |
552 | void f (void) EXTERNALLY_VISIBLE; void f (void) {} | |
244fc23d | 553 | |
46e65b73 | 554 | #ifndef GCC_CTORS_IN_LIBC |
244fc23d PE |
555 | DEFINE_DUMMY_FUNCTION (__do_global_ctors) |
556 | DEFINE_DUMMY_FUNCTION (__do_global_ctors_aux) | |
557 | DEFINE_DUMMY_FUNCTION (__do_global_dtors) | |
554061d8 | 558 | /* GNU/Linux has a bug in its library; avoid an error. */ |
8a2a6032 | 559 | #ifndef GNU_LINUX |
35f08c38 | 560 | char * __CTOR_LIST__[2] EXTERNALLY_VISIBLE = { (char *) (-1), 0 }; |
64c1864a | 561 | #endif |
35f08c38 | 562 | char * __DTOR_LIST__[2] EXTERNALLY_VISIBLE = { (char *) (-1), 0 }; |
46e65b73 | 563 | #endif /* GCC_CTORS_IN_LIBC */ |
244fc23d | 564 | DEFINE_DUMMY_FUNCTION (__main) |
efd241cc | 565 | #endif /* __GNUC__ */ |
a90538cb | 566 | #endif /* ORDINARY_LINK */ |
efd241cc | 567 | |
e2925360 KH |
568 | /* Test whether the next argument in ARGV matches SSTR or a prefix of |
569 | LSTR (at least MINLEN characters). If so, then if VALPTR is non-null | |
570 | (the argument is supposed to have a value) store in *VALPTR either | |
571 | the next argument or the portion of this one after the equal sign. | |
572 | ARGV is read starting at position *SKIPPTR; this index is advanced | |
573 | by the number of arguments used. | |
574 | ||
575 | Too bad we can't just use getopt for all of this, but we don't have | |
576 | enough information to do it right. */ | |
081bef73 | 577 | |
e2925360 | 578 | static int |
62973b41 JB |
579 | argmatch (char **argv, int argc, const char *sstr, const char *lstr, |
580 | int minlen, char **valptr, int *skipptr) | |
e2925360 | 581 | { |
6bbd7a29 | 582 | char *p = NULL; |
e2925360 | 583 | int arglen; |
df6530f8 RS |
584 | char *arg; |
585 | ||
586 | /* Don't access argv[argc]; give up in advance. */ | |
587 | if (argc <= *skipptr + 1) | |
588 | return 0; | |
589 | ||
590 | arg = argv[*skipptr+1]; | |
e2925360 KH |
591 | if (arg == NULL) |
592 | return 0; | |
593 | if (strcmp (arg, sstr) == 0) | |
594 | { | |
595 | if (valptr != NULL) | |
596 | { | |
597 | *valptr = argv[*skipptr+2]; | |
598 | *skipptr += 2; | |
599 | } | |
600 | else | |
601 | *skipptr += 1; | |
602 | return 1; | |
603 | } | |
8966b757 | 604 | arglen = (valptr != NULL && (p = strchr (arg, '=')) != NULL |
e2925360 | 605 | ? p - arg : strlen (arg)); |
c03e1113 | 606 | if (lstr == 0 || arglen < minlen || strncmp (arg, lstr, arglen) != 0) |
e2925360 KH |
607 | return 0; |
608 | else if (valptr == NULL) | |
609 | { | |
610 | *skipptr += 1; | |
611 | return 1; | |
612 | } | |
613 | else if (p != NULL) | |
614 | { | |
615 | *valptr = p+1; | |
616 | *skipptr += 1; | |
617 | return 1; | |
618 | } | |
619 | else if (argv[*skipptr+2] != NULL) | |
620 | { | |
621 | *valptr = argv[*skipptr+2]; | |
622 | *skipptr += 2; | |
623 | return 1; | |
624 | } | |
625 | else | |
626 | { | |
627 | return 0; | |
628 | } | |
629 | } | |
630 | ||
b6779252 | 631 | #ifdef DOUG_LEA_MALLOC |
f927c5ae | 632 | |
b6779252 KH |
633 | /* malloc can be invoked even before main (e.g. by the dynamic |
634 | linker), so the dumped malloc state must be restored as early as | |
635 | possible using this special hook. */ | |
636 | ||
637 | static void | |
dd4c5104 | 638 | malloc_initialize_hook (void) |
b6779252 | 639 | { |
1f9c3929 | 640 | #ifndef USE_CRT_DLL |
b6779252 | 641 | extern char **environ; |
1f9c3929 | 642 | #endif |
6000fe37 | 643 | |
15aaf1b5 RS |
644 | if (initialized) |
645 | { | |
7c9cd446 AS |
646 | if (!malloc_using_checking) |
647 | /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be | |
648 | ignored if the heap to be restored was constructed without | |
d942e12a AS |
649 | malloc checking. Can't use unsetenv, since that calls malloc. */ |
650 | { | |
651 | char **p; | |
652 | ||
a57c4026 | 653 | for (p = environ; p && *p; p++) |
d942e12a AS |
654 | if (strncmp (*p, "MALLOC_CHECK_=", 14) == 0) |
655 | { | |
656 | do | |
657 | *p = p[1]; | |
658 | while (*++p); | |
659 | break; | |
660 | } | |
661 | } | |
b6779252 | 662 | |
15aaf1b5 | 663 | malloc_set_state (malloc_state_ptr); |
68db37aa | 664 | #ifndef XMALLOC_OVERRUN_CHECK |
15aaf1b5 | 665 | free (malloc_state_ptr); |
68db37aa | 666 | #endif |
15aaf1b5 | 667 | } |
7c9cd446 | 668 | else |
dede2792 JD |
669 | { |
670 | if (my_heap_start == 0) | |
671 | my_heap_start = sbrk (0); | |
672 | malloc_using_checking = getenv ("MALLOC_CHECK_") != NULL; | |
673 | } | |
b6779252 KH |
674 | } |
675 | ||
dd4c5104 | 676 | void (*__malloc_initialize_hook) (void) = malloc_initialize_hook; |
b6779252 KH |
677 | |
678 | #endif /* DOUG_LEA_MALLOC */ | |
679 | ||
d883731c | 680 | |
b6779252 KH |
681 | /* ARGSUSED */ |
682 | int | |
7c2fb837 | 683 | main (int argc, char **argv) |
b6779252 | 684 | { |
2313132f | 685 | #if GC_MARK_STACK |
39ec21ea GM |
686 | Lisp_Object dummy; |
687 | #endif | |
b6779252 | 688 | char stack_bottom_variable; |
68c45bf0 | 689 | int do_initial_setlocale; |
b6779252 | 690 | int skip_args = 0; |
b6779252 KH |
691 | #ifdef HAVE_SETRLIMIT |
692 | struct rlimit rlim; | |
693 | #endif | |
694 | int no_loadup = 0; | |
6e910e07 | 695 | char *junk = 0; |
4ff029f6 | 696 | char *dname_arg = 0; |
b3243e6f AR |
697 | #ifdef NS_IMPL_COCOA |
698 | char dname_arg2[80]; | |
699 | #endif | |
f63d0028 | 700 | char *ch_to_dir; |
b6779252 | 701 | |
2313132f | 702 | #if GC_MARK_STACK |
39ec21ea GM |
703 | stack_base = &dummy; |
704 | #endif | |
705 | ||
a4ef73c8 CY |
706 | #if defined (USE_GTK) && defined (G_SLICE_ALWAYS_MALLOC) |
707 | /* This is used by the Cygwin build. */ | |
708 | setenv ("G_SLICE", "always-malloc", 1); | |
709 | #endif | |
710 | ||
dede2792 JD |
711 | if (!initialized) |
712 | { | |
713 | extern char my_endbss[]; | |
714 | extern char *my_endbss_static; | |
715 | ||
716 | if (my_heap_start == 0) | |
717 | my_heap_start = sbrk (0); | |
718 | ||
719 | heap_bss_diff = (char *)my_heap_start - max (my_endbss, my_endbss_static); | |
720 | } | |
721 | ||
d785cf9e RS |
722 | #ifdef RUN_TIME_REMAP |
723 | if (initialized) | |
724 | run_time_remap (argv[0]); | |
725 | #endif | |
726 | ||
14145fa3 AR |
727 | /* If using unexmacosx.c (set by s/darwin.h), we must do this. */ |
728 | #ifdef DARWIN_OS | |
e0f712ba AC |
729 | if (!initialized) |
730 | unexec_init_emacs_zone (); | |
731 | #endif | |
732 | ||
081bef73 | 733 | sort_args (argc, argv); |
956e3c7e RS |
734 | argc = 0; |
735 | while (argv[argc]) argc++; | |
081bef73 | 736 | |
8c5ff6dd | 737 | if (argmatch (argv, argc, "-version", "--version", 3, NULL, &skip_args)) |
1702afef | 738 | { |
8c5ff6dd KR |
739 | const char *version, *copyright; |
740 | if (initialized) | |
5cf9ca93 | 741 | { |
8c5ff6dd KR |
742 | Lisp_Object tem, tem2; |
743 | tem = Fsymbol_value (intern_c_string ("emacs-version")); | |
744 | tem2 = Fsymbol_value (intern_c_string ("emacs-copyright")); | |
745 | if (!STRINGP (tem)) | |
746 | { | |
747 | fprintf (stderr, "Invalid value of `emacs-version'\n"); | |
748 | exit (1); | |
749 | } | |
750 | if (!STRINGP (tem2)) | |
751 | { | |
752 | fprintf (stderr, "Invalid value of `emacs-copyright'\n"); | |
753 | exit (1); | |
754 | } | |
755 | else | |
756 | { | |
42a5b22f PE |
757 | version = SSDATA (tem); |
758 | copyright = SSDATA (tem2); | |
8c5ff6dd | 759 | } |
5cf9ca93 | 760 | } |
1702afef RS |
761 | else |
762 | { | |
8c5ff6dd KR |
763 | version = emacs_version; |
764 | copyright = emacs_copyright; | |
1702afef | 765 | } |
8c5ff6dd KR |
766 | printf ("GNU Emacs %s\n", version); |
767 | printf ("%s\n", copyright); | |
768 | printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n"); | |
769 | printf ("You may redistribute copies of Emacs\n"); | |
770 | printf ("under the terms of the GNU General Public License.\n"); | |
771 | printf ("For more information about these matters, "); | |
772 | printf ("see the file named COPYING.\n"); | |
773 | exit (0); | |
1702afef | 774 | } |
947f5e01 JM |
775 | |
776 | if (argmatch (argv, argc, "-chdir", "--chdir", 4, &ch_to_dir, &skip_args)) | |
777 | if (chdir (ch_to_dir) == -1) | |
778 | { | |
779 | fprintf (stderr, "%s: Can't chdir to %s: %s\n", | |
780 | argv[0], ch_to_dir, strerror (errno)); | |
781 | exit (1); | |
782 | } | |
f63d0028 | 783 | |
1702afef | 784 | |
dede2792 | 785 | #ifdef HAVE_PERSONALITY_LINUX32 |
dede2792 JD |
786 | if (!initialized |
787 | && (strcmp (argv[argc-1], "dump") == 0 | |
788 | || strcmp (argv[argc-1], "bootstrap") == 0) | |
fd75ddb2 | 789 | && ! getenv ("EMACS_HEAP_EXEC")) |
dede2792 | 790 | { |
42ca4633 | 791 | static char heapexec[] = "EMACS_HEAP_EXEC=true"; |
fd75ddb2 | 792 | /* Set this so we only do this once. */ |
42ca4633 | 793 | putenv(heapexec); |
711877f3 | 794 | |
fd75ddb2 JD |
795 | /* A flag to turn off address randomization which is introduced |
796 | in linux kernel shipped with fedora core 4 */ | |
711877f3 | 797 | #define ADD_NO_RANDOMIZE 0x0040000 |
fd75ddb2 | 798 | personality (PER_LINUX32 | ADD_NO_RANDOMIZE); |
711877f3 MY |
799 | #undef ADD_NO_RANDOMIZE |
800 | ||
fd75ddb2 | 801 | execvp (argv[0], argv); |
dede2792 | 802 | |
fd75ddb2 JD |
803 | /* If the exec fails, try to dump anyway. */ |
804 | perror ("execvp"); | |
dede2792 JD |
805 | } |
806 | #endif /* HAVE_PERSONALITY_LINUX32 */ | |
807 | ||
ea2acec5 | 808 | #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK) |
6c2935e9 RS |
809 | /* Extend the stack space available. |
810 | Don't do that if dumping, since some systems (e.g. DJGPP) | |
811 | might define a smaller stack limit at that time. */ | |
812 | if (1 | |
813 | #ifndef CANNOT_DUMP | |
814 | && (!noninteractive || initialized) | |
815 | #endif | |
816 | && !getrlimit (RLIMIT_STACK, &rlim)) | |
53c58b5d | 817 | { |
509a8fcd | 818 | long newlim; |
fa8459a3 | 819 | extern size_t re_max_failures; |
03effc23 KH |
820 | /* Approximate the amount regex.c needs per unit of re_max_failures. */ |
821 | int ratio = 20 * sizeof (char *); | |
822 | /* Then add 33% to cover the size of the smaller stacks that regex.c | |
823 | successively allocates and discards, on its way to the maximum. */ | |
824 | ratio += ratio / 3; | |
825 | /* Add in some extra to cover | |
826 | what we're likely to use for other reasons. */ | |
827 | newlim = re_max_failures * ratio + 200000; | |
d0381a7f RS |
828 | #ifdef __NetBSD__ |
829 | /* NetBSD (at least NetBSD 1.2G and former) has a bug in its | |
830 | stack allocation routine for new process that the allocation | |
831 | fails if stack limit is not on page boundary. So, round up the | |
832 | new limit to page boundary. */ | |
833 | newlim = (newlim + getpagesize () - 1) / getpagesize () * getpagesize(); | |
834 | #endif | |
509a8fcd | 835 | if (newlim > rlim.rlim_max) |
6c2935e9 RS |
836 | { |
837 | newlim = rlim.rlim_max; | |
03effc23 KH |
838 | /* Don't let regex.c overflow the stack we have. */ |
839 | re_max_failures = (newlim - 200000) / ratio; | |
6c2935e9 | 840 | } |
509a8fcd RS |
841 | if (rlim.rlim_cur < newlim) |
842 | rlim.rlim_cur = newlim; | |
843 | ||
53c58b5d RS |
844 | setrlimit (RLIMIT_STACK, &rlim); |
845 | } | |
ea2acec5 | 846 | #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */ |
53c58b5d | 847 | |
f927c5ae JB |
848 | /* Record (approximately) where the stack begins. */ |
849 | stack_bottom = &stack_bottom_variable; | |
850 | ||
f927c5ae | 851 | clearerr (stdin); |
9ae8f997 | 852 | |
f927c5ae | 853 | #ifndef SYSTEM_MALLOC |
bf7f4e90 RS |
854 | /* Arrange to get warning messages as memory fills up. */ |
855 | memory_warnings (0, malloc_warning); | |
9ac0d9e0 | 856 | |
f5a3c8c4 AI |
857 | /* Call malloc at least once, to run the initial __malloc_hook. |
858 | Also call realloc and free for consistency. */ | |
859 | free (realloc (malloc (4), 4)); | |
bf7f4e90 | 860 | |
06ca62eb | 861 | # ifndef SYNC_INPUT |
bf7f4e90 RS |
862 | /* Arrange to disable interrupt input inside malloc etc. */ |
863 | uninterrupt_malloc (); | |
06ca62eb | 864 | # endif /* not SYNC_INPUT */ |
f927c5ae JB |
865 | #endif /* not SYSTEM_MALLOC */ |
866 | ||
3e9de9f6 | 867 | #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD |
333f1b6f | 868 | main_thread = pthread_self (); |
3e9de9f6 | 869 | #endif /* FORWARD_SIGNAL_TO_MAIN_THREAD */ |
333f1b6f | 870 | |
edd3ff1d | 871 | #if defined (MSDOS) || defined (WINDOWSNT) |
29b89fe0 RS |
872 | /* We do all file input/output as binary files. When we need to translate |
873 | newlines, we do that manually. */ | |
874 | _fmode = O_BINARY; | |
edd3ff1d | 875 | #endif /* MSDOS || WINDOWSNT */ |
18198bb2 | 876 | |
edd3ff1d | 877 | #ifdef MSDOS |
18198bb2 RS |
878 | if (!isatty (fileno (stdin))) |
879 | setmode (fileno (stdin), O_BINARY); | |
880 | if (!isatty (fileno (stdout))) | |
881 | { | |
882 | fflush (stdout); | |
883 | setmode (fileno (stdout), O_BINARY); | |
884 | } | |
29b89fe0 RS |
885 | #endif /* MSDOS */ |
886 | ||
68c45bf0 PE |
887 | /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case. |
888 | The build procedure uses this while dumping, to ensure that the | |
889 | dumped Emacs does not have its system locale tables initialized, | |
890 | as that might cause screwups when the dumped Emacs starts up. */ | |
891 | { | |
892 | char *lc_all = getenv ("LC_ALL"); | |
893 | do_initial_setlocale = ! lc_all || strcmp (lc_all, "C"); | |
894 | } | |
895 | ||
896 | /* Set locale now, so that initial error messages are localized properly. | |
897 | fixup_locale must wait until later, since it builds strings. */ | |
898 | if (do_initial_setlocale) | |
899 | setlocale (LC_ALL, ""); | |
900 | ||
f927c5ae JB |
901 | inhibit_window_system = 0; |
902 | ||
7db35a48 | 903 | /* Handle the -t switch, which specifies filename to use as terminal. */ |
956e3c7e RS |
904 | while (1) |
905 | { | |
906 | char *term; | |
907 | if (argmatch (argv, argc, "-t", "--terminal", 4, &term, &skip_args)) | |
908 | { | |
909 | int result; | |
68c45bf0 PE |
910 | emacs_close (0); |
911 | emacs_close (1); | |
912 | result = emacs_open (term, O_RDWR, 0); | |
9055082e | 913 | if (result < 0 || dup (0) < 0) |
956e3c7e RS |
914 | { |
915 | char *errstring = strerror (errno); | |
186486eb | 916 | fprintf (stderr, "%s: %s: %s\n", argv[0], term, errstring); |
956e3c7e RS |
917 | exit (1); |
918 | } | |
956e3c7e RS |
919 | if (! isatty (0)) |
920 | { | |
186486eb | 921 | fprintf (stderr, "%s: %s: not a tty\n", argv[0], term); |
956e3c7e RS |
922 | exit (1); |
923 | } | |
924 | fprintf (stderr, "Using %s\n", term); | |
8ba50e1a | 925 | #ifdef HAVE_WINDOW_SYSTEM |
956e3c7e | 926 | inhibit_window_system = 1; /* -t => -nw */ |
f927c5ae | 927 | #endif |
956e3c7e RS |
928 | } |
929 | else | |
930 | break; | |
931 | } | |
932 | ||
400d6fa9 PJ |
933 | /* Command line option --no-windows is deprecated and thus not mentioned |
934 | in the manual and usage informations. */ | |
935 | if (argmatch (argv, argc, "-nw", "--no-window-system", 6, NULL, &skip_args) | |
936 | || argmatch (argv, argc, "-nw", "--no-windows", 6, NULL, &skip_args)) | |
e2925360 | 937 | inhibit_window_system = 1; |
f927c5ae | 938 | |
e2925360 | 939 | /* Handle the -batch switch, which means don't do interactive display. */ |
f927c5ae | 940 | noninteractive = 0; |
df6530f8 | 941 | if (argmatch (argv, argc, "-batch", "--batch", 5, NULL, &skip_args)) |
55f4edbc RS |
942 | { |
943 | noninteractive = 1; | |
944 | Vundo_outer_limit = Qnil; | |
945 | } | |
6e910e07 RS |
946 | if (argmatch (argv, argc, "-script", "--script", 3, &junk, &skip_args)) |
947 | { | |
948 | noninteractive = 1; /* Set batch mode. */ | |
21a4ff8e | 949 | /* Convert --script to -scriptload, un-skip it, and sort again |
e09b9180 | 950 | so that it will be handled in proper sequence. */ |
a09a5b5b | 951 | /* FIXME broken for --script=FILE - is that supposed to work? */ |
c03cd23f | 952 | argv[skip_args - 1] = (char *) "-scriptload"; |
6e910e07 RS |
953 | skip_args -= 2; |
954 | sort_args (argc, argv); | |
955 | } | |
e2925360 | 956 | |
7db35a48 | 957 | /* Handle the --help option, which gives a usage message. */ |
df6530f8 | 958 | if (argmatch (argv, argc, "-help", "--help", 3, NULL, &skip_args)) |
f927c5ae | 959 | { |
6b61353c KH |
960 | printf (USAGE1, argv[0], USAGE2); |
961 | printf (USAGE3); | |
17284745 | 962 | printf (USAGE4); |
e2925360 | 963 | exit (0); |
f927c5ae JB |
964 | } |
965 | ||
4ff029f6 DN |
966 | if (argmatch (argv, argc, "-daemon", "--daemon", 5, NULL, &skip_args) |
967 | || argmatch (argv, argc, "-daemon", "--daemon", 5, &dname_arg, &skip_args)) | |
eab2ee89 | 968 | { |
9d29095c | 969 | #ifndef DOS_NT |
5790ef40 DN |
970 | pid_t f; |
971 | ||
972 | /* Start as a daemon: fork a new child process which will run the | |
973 | rest of the initialization code, then exit. | |
974 | ||
fc012771 SM |
975 | Detaching a daemon requires the following steps: |
976 | - fork | |
977 | - setsid | |
978 | - exit the parent | |
979 | - close the tty file-descriptors | |
980 | ||
981 | We only want to do the last 2 steps once the daemon is ready to | |
982 | serve requests, i.e. after loading .emacs (initialization). | |
983 | OTOH initialization may start subprocesses (e.g. ispell) and these | |
984 | should be run from the proper process (the one that will end up | |
985 | running as daemon) and with the proper "session id" in order for | |
986 | them to keep working after detaching, so fork and setsid need to be | |
987 | performed before initialization. | |
988 | ||
5790ef40 DN |
989 | We want to avoid exiting before the server socket is ready, so |
990 | use a pipe for synchronization. The parent waits for the child | |
991 | to close its end of the pipe (using `daemon-initialized') | |
992 | before exiting. */ | |
993 | if (pipe (daemon_pipe) == -1) | |
994 | { | |
995 | fprintf (stderr, "Cannot pipe!\n"); | |
996 | exit (1); | |
997 | } | |
998 | ||
b3243e6f | 999 | #ifndef NS_IMPL_COCOA |
5790ef40 | 1000 | f = fork (); |
cfa6accb AR |
1001 | #else /* NS_IMPL_COCOA */ |
1002 | /* Under Cocoa we must do fork+exec as CoreFoundation lib fails in | |
1003 | forked process: http://developer.apple.com/ReleaseNotes/ | |
1004 | CoreFoundation/CoreFoundation.html) | |
b3243e6f AR |
1005 | We mark being in the exec'd process by a daemon name argument of |
1006 | form "--daemon=\nFD0,FD1\nNAME" where FD are the pipe file descriptors, | |
1007 | NAME is the original daemon name, if any. */ | |
1008 | if (!dname_arg || !strchr (dname_arg, '\n')) | |
1009 | f = fork (); /* in orig */ | |
1010 | else | |
1011 | f = 0; /* in exec'd */ | |
cfa6accb | 1012 | #endif /* NS_IMPL_COCOA */ |
eab2ee89 | 1013 | if (f > 0) |
5790ef40 DN |
1014 | { |
1015 | int retval; | |
1016 | char buf[1]; | |
1017 | ||
1018 | /* Close unused writing end of the pipe. */ | |
1019 | close (daemon_pipe[1]); | |
1020 | ||
1021 | /* Just wait for the child to close its end of the pipe. */ | |
1022 | do | |
1023 | { | |
1024 | retval = read (daemon_pipe[0], &buf, 1); | |
1025 | } | |
1026 | while (retval == -1 && errno == EINTR); | |
1027 | ||
1028 | if (retval < 0) | |
1029 | { | |
1030 | fprintf (stderr, "Error reading status from child\n"); | |
1031 | exit (1); | |
1032 | } | |
fd95644b DN |
1033 | else if (retval == 0) |
1034 | { | |
1035 | fprintf (stderr, "Error: server did not start correctly\n"); | |
1036 | exit (1); | |
1037 | } | |
5790ef40 DN |
1038 | |
1039 | close (daemon_pipe[0]); | |
1040 | exit (0); | |
1041 | } | |
eab2ee89 DN |
1042 | if (f < 0) |
1043 | { | |
1044 | fprintf (stderr, "Cannot fork!\n"); | |
9d0a6e42 | 1045 | exit (1); |
eab2ee89 DN |
1046 | } |
1047 | ||
b3243e6f AR |
1048 | #ifdef NS_IMPL_COCOA |
1049 | { | |
cfa6accb | 1050 | /* In orig process, forked as child, OR in exec'd. */ |
b3243e6f | 1051 | if (!dname_arg || !strchr (dname_arg, '\n')) |
cfa6accb | 1052 | { /* In orig, child: now exec w/special daemon name. */ |
b3243e6f AR |
1053 | char fdStr[80]; |
1054 | ||
1055 | if (dname_arg && strlen (dname_arg) > 70) | |
1056 | { | |
1057 | fprintf (stderr, "daemon: child name too long\n"); | |
1058 | exit (1); | |
1059 | } | |
1060 | ||
1061 | sprintf (fdStr, "--daemon=\n%d,%d\n%s", daemon_pipe[0], | |
1062 | daemon_pipe[1], dname_arg ? dname_arg : ""); | |
1063 | argv[skip_args] = fdStr; | |
1064 | ||
1065 | execv (argv[0], argv); | |
cff11156 | 1066 | fprintf (stderr, "emacs daemon: exec failed: %d\n", errno); |
b3243e6f AR |
1067 | exit (1); |
1068 | } | |
1069 | ||
cfa6accb | 1070 | /* In exec'd: parse special dname into pipe and name info. */ |
b3243e6f AR |
1071 | if (!dname_arg || !strchr (dname_arg, '\n') |
1072 | || strlen (dname_arg) < 1 || strlen (dname_arg) > 70) | |
1073 | { | |
1074 | fprintf (stderr, "emacs daemon: daemon name absent or too long\n"); | |
1075 | exit(1); | |
1076 | } | |
1077 | dname_arg2[0] = '\0'; | |
1078 | sscanf (dname_arg, "\n%d,%d\n%s", &(daemon_pipe[0]), &(daemon_pipe[1]), | |
1079 | dname_arg2); | |
1080 | dname_arg = strlen (dname_arg2) ? dname_arg2 : NULL; | |
1081 | } | |
cfa6accb | 1082 | #endif /* NS_IMPL_COCOA */ |
b3243e6f | 1083 | |
4ff029f6 DN |
1084 | if (dname_arg) |
1085 | daemon_name = xstrdup (dname_arg); | |
5790ef40 DN |
1086 | /* Close unused reading end of the pipe. */ |
1087 | close (daemon_pipe[0]); | |
7c19d3ae DN |
1088 | /* Make sure that the used end of the pipe is closed on exec, so |
1089 | that it is not accessible to programs started from .emacs. */ | |
1090 | fcntl (daemon_pipe[1], F_SETFD, FD_CLOEXEC); | |
1091 | ||
eab2ee89 DN |
1092 | #ifdef HAVE_SETSID |
1093 | setsid(); | |
1094 | #endif | |
eab2ee89 | 1095 | #else /* DOS_NT */ |
9d29095c DN |
1096 | fprintf (stderr, "This platform does not support the -daemon flag.\n"); |
1097 | exit (1); | |
eab2ee89 | 1098 | #endif /* DOS_NT */ |
9d29095c | 1099 | } |
eab2ee89 | 1100 | |
edb85f59 RS |
1101 | if (! noninteractive) |
1102 | { | |
edb85f59 RS |
1103 | #if defined (USG5) && defined (INTERRUPT_INPUT) |
1104 | setpgrp (); | |
1105 | #endif | |
5467331d YM |
1106 | #if defined (HAVE_GTK_AND_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC) |
1107 | { | |
f57e2426 | 1108 | extern void malloc_enable_thread (void); |
5467331d YM |
1109 | |
1110 | malloc_enable_thread (); | |
1111 | } | |
edb85f59 RS |
1112 | #endif |
1113 | } | |
1114 | ||
fb8e9847 | 1115 | init_signals (); |
fb8e9847 | 1116 | |
1efa2983 KH |
1117 | /* Don't catch SIGHUP if dumping. */ |
1118 | if (1 | |
1119 | #ifndef CANNOT_DUMP | |
1120 | && initialized | |
1121 | #endif | |
1122 | ) | |
1123 | { | |
57e3d22a | 1124 | sigblock (sigmask (SIGHUP)); |
1efa2983 KH |
1125 | /* In --batch mode, don't catch SIGHUP if already ignored. |
1126 | That makes nohup work. */ | |
1127 | if (! noninteractive | |
1128 | || signal (SIGHUP, SIG_IGN) != SIG_IGN) | |
1129 | signal (SIGHUP, fatal_error_signal); | |
57e3d22a | 1130 | sigunblock (sigmask (SIGHUP)); |
1efa2983 KH |
1131 | } |
1132 | ||
f927c5ae JB |
1133 | if ( |
1134 | #ifndef CANNOT_DUMP | |
1135 | ! noninteractive || initialized | |
1136 | #else | |
1137 | 1 | |
1138 | #endif | |
1139 | ) | |
1140 | { | |
1efa2983 | 1141 | /* Don't catch these signals in batch mode if dumping. |
f927c5ae JB |
1142 | On some machines, this sets static data that would make |
1143 | signal fail to work right when the dumped Emacs is run. */ | |
f927c5ae JB |
1144 | signal (SIGQUIT, fatal_error_signal); |
1145 | signal (SIGILL, fatal_error_signal); | |
1146 | signal (SIGTRAP, fatal_error_signal); | |
7317d9e8 | 1147 | #ifdef SIGUSR1 |
71b28d05 | 1148 | add_user_signal (SIGUSR1, "sigusr1"); |
7317d9e8 | 1149 | #endif |
8247c60d | 1150 | #ifdef SIGUSR2 |
71b28d05 | 1151 | add_user_signal (SIGUSR2, "sigusr2"); |
7317d9e8 | 1152 | #endif |
99e372cd RS |
1153 | #ifdef SIGABRT |
1154 | signal (SIGABRT, fatal_error_signal); | |
1155 | #endif | |
1156 | #ifdef SIGHWE | |
1157 | signal (SIGHWE, fatal_error_signal); | |
1158 | #endif | |
1159 | #ifdef SIGPRE | |
1160 | signal (SIGPRE, fatal_error_signal); | |
1161 | #endif | |
1162 | #ifdef SIGORE | |
1163 | signal (SIGORE, fatal_error_signal); | |
1164 | #endif | |
1165 | #ifdef SIGUME | |
1166 | signal (SIGUME, fatal_error_signal); | |
1167 | #endif | |
1168 | #ifdef SIGDLK | |
1169 | signal (SIGDLK, fatal_error_signal); | |
1170 | #endif | |
1171 | #ifdef SIGCPULIM | |
1172 | signal (SIGCPULIM, fatal_error_signal); | |
1173 | #endif | |
a90538cb JB |
1174 | #ifdef SIGIOT |
1175 | /* This is missing on some systems - OS/2, for example. */ | |
f927c5ae | 1176 | signal (SIGIOT, fatal_error_signal); |
a90538cb | 1177 | #endif |
f927c5ae JB |
1178 | #ifdef SIGEMT |
1179 | signal (SIGEMT, fatal_error_signal); | |
1180 | #endif | |
1181 | signal (SIGFPE, fatal_error_signal); | |
00eaaa32 | 1182 | #ifdef SIGBUS |
f927c5ae | 1183 | signal (SIGBUS, fatal_error_signal); |
00eaaa32 | 1184 | #endif |
f927c5ae | 1185 | signal (SIGSEGV, fatal_error_signal); |
00eaaa32 | 1186 | #ifdef SIGSYS |
f927c5ae | 1187 | signal (SIGSYS, fatal_error_signal); |
9c524fcb | 1188 | #endif |
9c524fcb GM |
1189 | /* May need special treatment on MS-Windows. See |
1190 | http://lists.gnu.org/archive/html/emacs-devel/2010-09/msg01062.html | |
1191 | Please update the doc of kill-emacs, kill-emacs-hook, and | |
1192 | NEWS if you change this. | |
1193 | */ | |
383ebd15 | 1194 | if (noninteractive) signal (SIGINT, fatal_error_signal); |
f927c5ae JB |
1195 | signal (SIGTERM, fatal_error_signal); |
1196 | #ifdef SIGXCPU | |
1197 | signal (SIGXCPU, fatal_error_signal); | |
1198 | #endif | |
1199 | #ifdef SIGXFSZ | |
1200 | signal (SIGXFSZ, fatal_error_signal); | |
1201 | #endif /* SIGXFSZ */ | |
1202 | ||
271c7b7c RS |
1203 | #ifdef SIGDANGER |
1204 | /* This just means available memory is getting low. */ | |
1205 | signal (SIGDANGER, memory_warning_signal); | |
1206 | #endif | |
1207 | ||
f927c5ae | 1208 | #ifdef AIX |
56e034fa RS |
1209 | /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */ |
1210 | signal (SIGXCPU, fatal_error_signal); | |
f927c5ae JB |
1211 | signal (SIGIOINT, fatal_error_signal); |
1212 | signal (SIGGRANT, fatal_error_signal); | |
1213 | signal (SIGRETRACT, fatal_error_signal); | |
1214 | signal (SIGSOUND, fatal_error_signal); | |
1215 | signal (SIGMSG, fatal_error_signal); | |
1216 | #endif /* AIX */ | |
1217 | } | |
1218 | ||
1219 | noninteractive1 = noninteractive; | |
1220 | ||
7db35a48 | 1221 | /* Perform basic initializations (not merely interning symbols). */ |
f927c5ae JB |
1222 | |
1223 | if (!initialized) | |
1224 | { | |
1225 | init_alloc_once (); | |
1226 | init_obarray (); | |
1227 | init_eval_once (); | |
e37d7195 | 1228 | init_character_once (); |
270ce821 KH |
1229 | init_charset_once (); |
1230 | init_coding_once (); | |
f927c5ae | 1231 | init_syntax_once (); /* Create standard syntax table. */ |
270ce821 | 1232 | init_category_once (); /* Create standard category table. */ |
7db35a48 | 1233 | /* Must be done before init_buffer. */ |
f927c5ae | 1234 | init_casetab_once (); |
7db35a48 PJ |
1235 | init_buffer_once (); /* Create buffer table and some buffers. */ |
1236 | init_minibuf_once (); /* Create list of minibuffers. */ | |
1237 | /* Must precede init_window_once. */ | |
1238 | ||
90d920b6 GM |
1239 | /* Call syms_of_xfaces before init_window_once because that |
1240 | function creates Vterminal_frame. Termcap frames now use | |
1241 | faces, and the face implementation uses some symbols as | |
1242 | face names. */ | |
90d920b6 | 1243 | syms_of_xfaces (); |
4ea81208 KL |
1244 | /* XXX syms_of_keyboard uses some symbols in keymap.c. It would |
1245 | be better to arrange things not to have this dependency. */ | |
1246 | syms_of_keymap (); | |
7a18af49 KR |
1247 | /* Call syms_of_keyboard before init_window_once because |
1248 | keyboard sets up symbols that include some face names that | |
1249 | the X support will want to use. This can happen when | |
1250 | CANNOT_DUMP is defined. */ | |
1251 | syms_of_keyboard (); | |
90d920b6 | 1252 | |
985773c9 MB |
1253 | /* Called before syms_of_fileio, because it sets up Qerror_condition. */ |
1254 | syms_of_data (); | |
1255 | syms_of_fileio (); | |
1256 | /* Before syms_of_coding to initialize Vgc_cons_threshold. */ | |
1257 | syms_of_alloc (); | |
1258 | /* Before syms_of_coding because it initializes Qcharsetp. */ | |
1259 | syms_of_charset (); | |
1260 | /* Before init_window_once, because it sets up the | |
1261 | Vcoding_system_hash_table. */ | |
1262 | syms_of_coding (); /* This should be after syms_of_fileio. */ | |
1a578e9b | 1263 | |
7db35a48 | 1264 | init_window_once (); /* Init the window system. */ |
6b61353c KH |
1265 | #ifdef HAVE_WINDOW_SYSTEM |
1266 | init_fringe_once (); /* Swap bitmaps if necessary. */ | |
1267 | #endif /* HAVE_WINDOW_SYSTEM */ | |
f927c5ae JB |
1268 | } |
1269 | ||
1270 | init_alloc (); | |
68c45bf0 PE |
1271 | |
1272 | if (do_initial_setlocale) | |
1273 | { | |
1274 | fixup_locale (); | |
ca9c0567 PE |
1275 | Vsystem_messages_locale = Vprevious_system_messages_locale; |
1276 | Vsystem_time_locale = Vprevious_system_time_locale; | |
68c45bf0 PE |
1277 | } |
1278 | ||
f927c5ae JB |
1279 | init_eval (); |
1280 | init_data (); | |
ad067ea6 | 1281 | #ifdef CLASH_DETECTION |
01f67d2c | 1282 | init_filelock (); |
ad067ea6 | 1283 | #endif |
ab5d0358 | 1284 | init_atimer (); |
7074fde6 | 1285 | running_asynch_code = 0; |
0e956009 | 1286 | |
956e3c7e | 1287 | no_loadup |
b96f9fb7 | 1288 | = argmatch (argv, argc, "-nl", "--no-loadup", 6, NULL, &skip_args); |
956e3c7e | 1289 | |
66b7b0fe GM |
1290 | no_site_lisp |
1291 | = argmatch (argv, argc, "-nsl", "--no-site-lisp", 11, NULL, &skip_args); | |
1292 | ||
edfda783 AR |
1293 | #ifdef HAVE_NS |
1294 | ns_alloc_autorelease_pool(); | |
1295 | if (!noninteractive) | |
1296 | { | |
edfda783 AR |
1297 | #ifdef NS_IMPL_COCOA |
1298 | if (skip_args < argc) | |
1299 | { | |
32299e33 PE |
1300 | /* FIXME: Do the right thing if getenv returns NULL, or if |
1301 | chdir fails. */ | |
edfda783 AR |
1302 | if (!strncmp(argv[skip_args], "-psn", 4)) |
1303 | { | |
1304 | skip_args += 1; | |
3d0a4431 | 1305 | chdir (getenv ("HOME")); |
edfda783 | 1306 | } |
95889848 | 1307 | else if (skip_args+1 < argc && !strncmp(argv[skip_args+1], "-psn", 4)) |
edfda783 | 1308 | { |
95889848 | 1309 | skip_args += 2; |
3d0a4431 | 1310 | chdir (getenv ("HOME")); |
edfda783 AR |
1311 | } |
1312 | } | |
9b68317c | 1313 | #endif /* COCOA */ |
edfda783 AR |
1314 | } |
1315 | #endif /* HAVE_NS */ | |
1316 | ||
956e3c7e RS |
1317 | #ifdef HAVE_X_WINDOWS |
1318 | /* Stupid kludge to catch command-line display spec. We can't | |
1319 | handle this argument entirely in window system dependent code | |
1320 | because we don't even know which window system dependent code | |
1321 | to run until we've recognized this argument. */ | |
1322 | { | |
1323 | char *displayname = 0; | |
956e3c7e RS |
1324 | int count_before = skip_args; |
1325 | ||
1326 | /* Skip any number of -d options, but only use the last one. */ | |
1327 | while (1) | |
1328 | { | |
1329 | int count_before_this = skip_args; | |
1330 | ||
1331 | if (argmatch (argv, argc, "-d", "--display", 3, &displayname, &skip_args)) | |
1332 | display_arg = 1; | |
1333 | else if (argmatch (argv, argc, "-display", 0, 3, &displayname, &skip_args)) | |
1334 | display_arg = 1; | |
1335 | else | |
1336 | break; | |
1337 | ||
1338 | count_before = count_before_this; | |
1339 | } | |
1340 | ||
1341 | /* If we have the form --display=NAME, | |
1342 | convert it into -d name. | |
1343 | This requires inserting a new element into argv. */ | |
1344 | if (displayname != 0 && skip_args - count_before == 1) | |
1345 | { | |
1346 | char **new = (char **) xmalloc (sizeof (char *) * (argc + 2)); | |
1347 | int j; | |
1348 | ||
1349 | for (j = 0; j < count_before + 1; j++) | |
1350 | new[j] = argv[j]; | |
c03cd23f | 1351 | new[count_before + 1] = (char *) "-d"; |
956e3c7e RS |
1352 | new[count_before + 2] = displayname; |
1353 | for (j = count_before + 2; j <argc; j++) | |
1354 | new[j + 1] = argv[j]; | |
1355 | argv = new; | |
1356 | argc++; | |
1357 | } | |
1358 | /* Change --display to -d, when its arg is separate. */ | |
1359 | else if (displayname != 0 && skip_args > count_before | |
1360 | && argv[count_before + 1][1] == '-') | |
c03cd23f | 1361 | argv[count_before + 1] = (char *) "-d"; |
956e3c7e | 1362 | |
66b7b0fe GM |
1363 | if (! no_site_lisp) |
1364 | { | |
1365 | if (argmatch (argv, argc, "-Q", "--quick", 3, NULL, &skip_args) | |
1366 | || argmatch (argv, argc, "-quick", 0, 2, NULL, &skip_args)) | |
1367 | no_site_lisp = 1; | |
1368 | } | |
1369 | ||
956e3c7e RS |
1370 | /* Don't actually discard this arg. */ |
1371 | skip_args = count_before; | |
1372 | } | |
66b7b0fe GM |
1373 | #else /* !HAVE_X_WINDOWS */ |
1374 | if (! no_site_lisp) | |
1375 | { | |
1376 | int count_before = skip_args; | |
1377 | ||
1378 | if (argmatch (argv, argc, "-Q", "--quick", 3, NULL, &skip_args) | |
1379 | || argmatch (argv, argc, "-quick", 0, 2, NULL, &skip_args)) | |
1380 | no_site_lisp = 1; | |
1381 | ||
1382 | skip_args = count_before; | |
1383 | } | |
956e3c7e RS |
1384 | #endif |
1385 | ||
1386 | /* argmatch must not be used after here, | |
1387 | except when bulding temacs | |
1388 | because the -d argument has not been skipped in skip_args. */ | |
1389 | ||
29b89fe0 RS |
1390 | #ifdef MSDOS |
1391 | /* Call early 'cause init_environment needs it. */ | |
1392 | init_dosfns (); | |
1393 | /* Set defaults for several environment variables. */ | |
18198bb2 RS |
1394 | if (initialized) |
1395 | init_environment (argc, argv, skip_args); | |
1396 | else | |
d1fc6752 | 1397 | tzset (); |
18198bb2 | 1398 | #endif /* MSDOS */ |
29b89fe0 | 1399 | |
8ba50e1a | 1400 | #ifdef WINDOWSNT |
9785d95b | 1401 | globals_of_w32 (); |
8ba50e1a | 1402 | /* Initialize environment from registry settings. */ |
a3a58294 | 1403 | init_environment (argv); |
7db35a48 | 1404 | init_ntproc (); /* must precede init_editfns. */ |
8ba50e1a GV |
1405 | #endif |
1406 | ||
edfda783 AR |
1407 | #ifdef HAVE_NS |
1408 | #ifndef CANNOT_DUMP | |
1409 | if (initialized) | |
1410 | #endif | |
1411 | ns_init_paths (); | |
1412 | #endif | |
1413 | ||
8b4eb796 KR |
1414 | /* Initialize and GC-protect Vinitial_environment and |
1415 | Vprocess_environment before set_initial_environment fills them | |
1416 | in. */ | |
1417 | if (!initialized) | |
1418 | syms_of_callproc (); | |
0e956009 JB |
1419 | /* egetenv is a pretty low-level facility, which may get called in |
1420 | many circumstances; it seems flimsy to put off initializing it | |
1421 | until calling init_callproc. */ | |
a13f8f50 | 1422 | set_initial_environment (); |
93aed04d | 1423 | /* AIX crashes are reported in system versions 3.2.3 and 3.2.4 |
5990851d KL |
1424 | if this is not done. Do it after set_global_environment so that we |
1425 | don't pollute Vglobal_environment. */ | |
fa09a82d | 1426 | /* Setting LANG here will defeat the startup locale processing... */ |
f2a77c3a | 1427 | #ifdef AIX |
93aed04d RS |
1428 | putenv ("LANG=C"); |
1429 | #endif | |
0e956009 | 1430 | |
7db35a48 | 1431 | init_buffer (); /* Init default directory of main buffer. */ |
ace40a69 | 1432 | |
7928f0b5 | 1433 | init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */ |
ace40a69 | 1434 | init_cmdargs (argc, argv, skip_args); /* Must precede init_lread. */ |
380e25b8 RS |
1435 | |
1436 | if (initialized) | |
1437 | { | |
7db35a48 | 1438 | /* Erase any pre-dump messages in the message log, to avoid confusion. */ |
380e25b8 RS |
1439 | Lisp_Object old_log_max; |
1440 | old_log_max = Vmessage_log_max; | |
1441 | XSETFASTINT (Vmessage_log_max, 0); | |
f6fe7bb5 | 1442 | message_dolog ("", 0, 1, 0); |
380e25b8 RS |
1443 | Vmessage_log_max = old_log_max; |
1444 | } | |
1445 | ||
7928f0b5 | 1446 | init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */ |
fb8e9847 | 1447 | init_lread (); |
f927c5ae | 1448 | |
8bb697c0 RS |
1449 | /* Intern the names of all standard functions and variables; |
1450 | define standard keys. */ | |
f927c5ae JB |
1451 | |
1452 | if (!initialized) | |
1453 | { | |
4230ab74 KR |
1454 | /* The basic levels of Lisp must come first. Note that |
1455 | syms_of_data and some others have already been called. */ | |
e37d7195 | 1456 | syms_of_chartab (); |
fb8e9847 | 1457 | syms_of_lread (); |
f927c5ae JB |
1458 | syms_of_print (); |
1459 | syms_of_eval (); | |
1460 | syms_of_fns (); | |
f927c5ae | 1461 | syms_of_floatfns (); |
f927c5ae | 1462 | |
f927c5ae JB |
1463 | syms_of_buffer (); |
1464 | syms_of_bytecode (); | |
1465 | syms_of_callint (); | |
1466 | syms_of_casefiddle (); | |
1467 | syms_of_casetab (); | |
270ce821 KH |
1468 | syms_of_category (); |
1469 | syms_of_ccl (); | |
e37d7195 | 1470 | syms_of_character (); |
f927c5ae | 1471 | syms_of_cmds (); |
f927c5ae | 1472 | syms_of_dired (); |
f927c5ae JB |
1473 | syms_of_display (); |
1474 | syms_of_doc (); | |
1475 | syms_of_editfns (); | |
1476 | syms_of_emacs (); | |
f927c5ae | 1477 | syms_of_filelock (); |
f927c5ae | 1478 | syms_of_indent (); |
c2c5ed2c | 1479 | syms_of_insdel (); |
4ea81208 | 1480 | /* syms_of_keymap (); */ |
f927c5ae JB |
1481 | syms_of_macros (); |
1482 | syms_of_marker (); | |
1483 | syms_of_minibuf (); | |
f927c5ae | 1484 | syms_of_process (); |
f927c5ae | 1485 | syms_of_search (); |
1cbd5d9d | 1486 | syms_of_frame (); |
f927c5ae | 1487 | syms_of_syntax (); |
ed8dad6b | 1488 | syms_of_terminal (); |
0d934e7b | 1489 | syms_of_term (); |
f927c5ae | 1490 | syms_of_undo (); |
90d920b6 GM |
1491 | #ifdef HAVE_SOUND |
1492 | syms_of_sound (); | |
1493 | #endif | |
bef79ee4 | 1494 | syms_of_textprop (); |
9d100795 | 1495 | syms_of_composite (); |
05687c54 RS |
1496 | #ifdef WINDOWSNT |
1497 | syms_of_ntproc (); | |
1498 | #endif /* WINDOWSNT */ | |
f927c5ae JB |
1499 | syms_of_window (); |
1500 | syms_of_xdisp (); | |
d53f587b | 1501 | syms_of_font (); |
4fa9161d | 1502 | #ifdef HAVE_WINDOW_SYSTEM |
6b61353c KH |
1503 | syms_of_fringe (); |
1504 | syms_of_image (); | |
1505 | #endif /* HAVE_WINDOW_SYSTEM */ | |
f927c5ae | 1506 | #ifdef HAVE_X_WINDOWS |
72412588 | 1507 | syms_of_xterm (); |
f927c5ae | 1508 | syms_of_xfns (); |
edfda783 | 1509 | syms_of_xmenu (); |
270ce821 | 1510 | syms_of_fontset (); |
637fa988 | 1511 | syms_of_xsettings (); |
28b1b672 JD |
1512 | #ifdef HAVE_X_SM |
1513 | syms_of_xsmfns (); | |
1514 | #endif | |
72412588 JB |
1515 | #ifdef HAVE_X11 |
1516 | syms_of_xselect (); | |
1517 | #endif | |
f927c5ae JB |
1518 | #endif /* HAVE_X_WINDOWS */ |
1519 | ||
381408e2 LMI |
1520 | #ifdef HAVE_LIBXML2 |
1521 | syms_of_xml (); | |
1522 | #endif | |
1523 | ||
4e77ce60 | 1524 | syms_of_menu (); |
4e77ce60 | 1525 | |
8ba50e1a | 1526 | #ifdef HAVE_NTGUI |
fbd6baed GV |
1527 | syms_of_w32term (); |
1528 | syms_of_w32fns (); | |
fbd6baed GV |
1529 | syms_of_w32select (); |
1530 | syms_of_w32menu (); | |
02062ac3 | 1531 | syms_of_fontset (); |
8ba50e1a GV |
1532 | #endif /* HAVE_NTGUI */ |
1533 | ||
40da1153 EZ |
1534 | #ifdef MSDOS |
1535 | syms_of_xmenu (); | |
2e31d424 DN |
1536 | syms_of_dosfns(); |
1537 | syms_of_msdos(); | |
1538 | syms_of_win16select(); | |
40da1153 EZ |
1539 | #endif /* MSDOS */ |
1540 | ||
edfda783 AR |
1541 | #ifdef HAVE_NS |
1542 | syms_of_nsterm (); | |
1543 | syms_of_nsfns (); | |
1544 | syms_of_nsmenu (); | |
1545 | syms_of_nsselect (); | |
1546 | syms_of_fontset (); | |
1547 | #endif /* HAVE_NS */ | |
1548 | ||
8af55556 TZ |
1549 | #ifdef HAVE_GNUTLS |
1550 | syms_of_gnutls (); | |
1551 | #endif | |
1552 | ||
033b73e2 MA |
1553 | #ifdef HAVE_DBUS |
1554 | syms_of_dbusbind (); | |
1555 | #endif /* HAVE_DBUS */ | |
1556 | ||
2e31d424 DN |
1557 | #ifdef WINDOWSNT |
1558 | syms_of_ntterm (); | |
1559 | #endif /* WINDOWSNT */ | |
f927c5ae JB |
1560 | |
1561 | keys_of_casefiddle (); | |
1562 | keys_of_cmds (); | |
1563 | keys_of_buffer (); | |
1564 | keys_of_keyboard (); | |
1565 | keys_of_keymap (); | |
f927c5ae | 1566 | keys_of_window (); |
9785d95b | 1567 | } |
3b6536b1 | 1568 | else |
9785d95b | 1569 | { |
3b6536b1 AS |
1570 | /* Initialization that must be done even if the global variable |
1571 | initialized is non zero. */ | |
9785d95b BK |
1572 | #ifdef HAVE_NTGUI |
1573 | globals_of_w32fns (); | |
1574 | globals_of_w32menu (); | |
52c7f9ee | 1575 | globals_of_w32select (); |
3b6536b1 | 1576 | #endif /* HAVE_NTGUI */ |
f927c5ae JB |
1577 | } |
1578 | ||
cf411e8d KH |
1579 | init_charset (); |
1580 | ||
f7cf8b20 | 1581 | init_editfns (); /* init_process uses Voperating_system_release. */ |
2491d293 | 1582 | init_process (); /* init_display uses add_keyboard_wait_descriptor. */ |
7db35a48 | 1583 | init_keyboard (); /* This too must precede init_sys_modes. */ |
0a125897 | 1584 | if (!noninteractive) |
7c2fb837 | 1585 | init_display (); /* Determine terminal type. Calls init_sys_modes. */ |
90d920b6 | 1586 | init_fns (); |
8bb697c0 | 1587 | init_xdisp (); |
6b61353c KH |
1588 | #ifdef HAVE_WINDOW_SYSTEM |
1589 | init_fringe (); | |
1590 | init_image (); | |
1591 | #endif /* HAVE_WINDOW_SYSTEM */ | |
8bb697c0 | 1592 | init_macros (); |
8bb697c0 | 1593 | init_floatfns (); |
90d920b6 GM |
1594 | #ifdef HAVE_SOUND |
1595 | init_sound (); | |
1596 | #endif | |
75816372 | 1597 | init_window (); |
74d75424 | 1598 | init_font (); |
087fc47a | 1599 | |
f927c5ae JB |
1600 | if (!initialized) |
1601 | { | |
e2925360 | 1602 | char *file; |
7db35a48 | 1603 | /* Handle -l loadup, args passed by Makefile. */ |
df6530f8 | 1604 | if (argmatch (argv, argc, "-l", "--load", 3, &file, &skip_args)) |
d67b4f80 | 1605 | Vtop_level = Fcons (intern_c_string ("load"), |
e2925360 | 1606 | Fcons (build_string (file), Qnil)); |
f927c5ae | 1607 | /* Unless next switch is -nl, load "loadup.el" first thing. */ |
956e3c7e | 1608 | if (! no_loadup) |
d67b4f80 | 1609 | Vtop_level = Fcons (intern_c_string ("load"), |
f927c5ae | 1610 | Fcons (build_string ("loadup.el"), Qnil)); |
f927c5ae JB |
1611 | } |
1612 | ||
93572b43 KH |
1613 | if (initialized) |
1614 | { | |
0269dedb RS |
1615 | #ifdef HAVE_TZSET |
1616 | { | |
1617 | /* If the execution TZ happens to be the same as the dump TZ, | |
1618 | change it to some other value and then change it back, | |
1619 | to force the underlying implementation to reload the TZ info. | |
1620 | This is needed on implementations that load TZ info from files, | |
1621 | since the TZ file contents may differ between dump and execution. */ | |
1622 | char *tz = getenv ("TZ"); | |
1623 | if (tz && !strcmp (tz, dump_tz)) | |
1624 | { | |
1625 | ++*tz; | |
1626 | tzset (); | |
1627 | --*tz; | |
1628 | } | |
1629 | } | |
1630 | #endif | |
93572b43 KH |
1631 | } |
1632 | ||
ecf783fa EZ |
1633 | /* Set up for profiling. This is known to work on FreeBSD, |
1634 | GNU/Linux and MinGW. It might work on some other systems too. | |
1635 | Give it a try and tell us if it works on your system. To compile | |
7b3a82d7 | 1636 | for profiling, use the configure option --enable-profiling. */ |
ecf783fa | 1637 | #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__) |
e610ea43 RS |
1638 | #ifdef PROFILING |
1639 | if (initialized) | |
1640 | { | |
7db35a48 | 1641 | extern void _mcleanup (); |
ecf783fa EZ |
1642 | #ifdef __MINGW32__ |
1643 | extern unsigned char etext asm ("etext"); | |
1644 | #else | |
e610ea43 | 1645 | extern char etext; |
ecf783fa | 1646 | #endif |
dcc19aac AS |
1647 | #ifdef HAVE___EXECUTABLE_START |
1648 | /* This symbol is defined by GNU ld to the start of the text | |
1649 | segment. */ | |
1650 | extern char __executable_start[]; | |
1651 | #else | |
90d920b6 | 1652 | extern void safe_bcopy (); |
dcc19aac | 1653 | #endif |
67a5596f | 1654 | |
e610ea43 | 1655 | atexit (_mcleanup); |
dcc19aac AS |
1656 | #ifdef HAVE___EXECUTABLE_START |
1657 | monstartup (__executable_start, &etext); | |
1658 | #else | |
90d920b6 GM |
1659 | /* This uses safe_bcopy because that function comes first in the |
1660 | Emacs executable. It might be better to use something that | |
1661 | gives the start of the text segment, but start_of_text is not | |
1662 | defined on all systems now. */ | |
72af86bd AS |
1663 | /* FIXME: Does not work on architectures with function |
1664 | descriptors. */ | |
90d920b6 | 1665 | monstartup (safe_bcopy, &etext); |
dcc19aac | 1666 | #endif |
e610ea43 RS |
1667 | } |
1668 | else | |
1669 | moncontrol (0); | |
1670 | #endif | |
1671 | #endif | |
1672 | ||
f927c5ae JB |
1673 | initialized = 1; |
1674 | ||
e7536cff RS |
1675 | #ifdef LOCALTIME_CACHE |
1676 | /* Some versions of localtime have a bug. They cache the value of the time | |
279cc2b8 JB |
1677 | zone rather than looking it up every time. Since localtime() is |
1678 | called to bolt the undumping time into the undumped emacs, this | |
afe9fae9 | 1679 | results in localtime ignoring the TZ environment variable. |
7db35a48 | 1680 | This flushes the new TZ value into localtime. */ |
afe9fae9 | 1681 | tzset (); |
e7536cff | 1682 | #endif /* defined (LOCALTIME_CACHE) */ |
279cc2b8 | 1683 | |
f927c5ae JB |
1684 | /* Enter editor command loop. This never returns. */ |
1685 | Frecursive_edit (); | |
1686 | /* NOTREACHED */ | |
6bbd7a29 | 1687 | return 0; |
f927c5ae JB |
1688 | } |
1689 | \f | |
081bef73 RS |
1690 | /* Sort the args so we can find the most important ones |
1691 | at the beginning of argv. */ | |
1692 | ||
1693 | /* First, here's a table of all the standard options. */ | |
1694 | ||
1695 | struct standard_args | |
1696 | { | |
5e2327cf DN |
1697 | const char *name; |
1698 | const char *longname; | |
081bef73 RS |
1699 | int priority; |
1700 | int nargs; | |
1701 | }; | |
1702 | ||
35f08c38 | 1703 | static const struct standard_args standard_args[] = |
081bef73 | 1704 | { |
05922407 | 1705 | { "-version", "--version", 150, 0 }, |
f63d0028 | 1706 | { "-chdir", "--chdir", 130, 1 }, |
05922407 | 1707 | { "-t", "--terminal", 120, 1 }, |
400d6fa9 | 1708 | { "-nw", "--no-window-system", 110, 0 }, |
05922407 RS |
1709 | { "-nw", "--no-windows", 110, 0 }, |
1710 | { "-batch", "--batch", 100, 0 }, | |
6e910e07 | 1711 | { "-script", "--script", 100, 1 }, |
eab2ee89 | 1712 | { "-daemon", "--daemon", 99, 0 }, |
05922407 | 1713 | { "-help", "--help", 90, 0 }, |
956e3c7e | 1714 | { "-nl", "--no-loadup", 70, 0 }, |
66b7b0fe | 1715 | { "-nsl", "--no-site-lisp", 65, 0 }, |
956e3c7e RS |
1716 | /* -d must come last before the options handled in startup.el. */ |
1717 | { "-d", "--display", 60, 1 }, | |
1718 | { "-display", 0, 60, 1 }, | |
4fe22cdf | 1719 | /* Now for the options handled in `command-line' (startup.el). */ |
66b7b0fe | 1720 | /* (Note that to imply -nsl, -Q is partially handled here.) */ |
a1716a57 RS |
1721 | { "-Q", "--quick", 55, 0 }, |
1722 | { "-quick", 0, 55, 0 }, | |
081bef73 RS |
1723 | { "-q", "--no-init-file", 50, 0 }, |
1724 | { "-no-init-file", 0, 50, 0 }, | |
1725 | { "-no-site-file", "--no-site-file", 40, 0 }, | |
1726 | { "-u", "--user", 30, 1 }, | |
1727 | { "-user", 0, 30, 1 }, | |
1728 | { "-debug-init", "--debug-init", 20, 0 }, | |
f2bc3538 | 1729 | { "-iconic", "--iconic", 15, 0 }, |
a1716a57 | 1730 | { "-D", "--basic-display", 12, 0}, |
e09b9180 | 1731 | { "-basic-display", 0, 12, 0}, |
4fe22cdf CY |
1732 | { "-nbc", "--no-blinking-cursor", 12, 0 }, |
1733 | /* Now for the options handled in `command-line-1' (startup.el). */ | |
1734 | { "-nbi", "--no-bitmap-icon", 10, 0 }, | |
081bef73 RS |
1735 | { "-bg", "--background-color", 10, 1 }, |
1736 | { "-background", 0, 10, 1 }, | |
1737 | { "-fg", "--foreground-color", 10, 1 }, | |
1738 | { "-foreground", 0, 10, 1 }, | |
1739 | { "-bd", "--border-color", 10, 1 }, | |
1740 | { "-bw", "--border-width", 10, 1 }, | |
1741 | { "-ib", "--internal-border", 10, 1 }, | |
1742 | { "-ms", "--mouse-color", 10, 1 }, | |
1743 | { "-cr", "--cursor-color", 10, 1 }, | |
1744 | { "-fn", "--font", 10, 1 }, | |
1745 | { "-font", 0, 10, 1 }, | |
94452530 EZ |
1746 | { "-fs", "--fullscreen", 10, 0 }, |
1747 | { "-fw", "--fullwidth", 10, 0 }, | |
1748 | { "-fh", "--fullheight", 10, 0 }, | |
3f1c6666 | 1749 | { "-mm", "--maximized", 10, 0 }, |
081bef73 RS |
1750 | { "-g", "--geometry", 10, 1 }, |
1751 | { "-geometry", 0, 10, 1 }, | |
1752 | { "-T", "--title", 10, 1 }, | |
ae63ae52 | 1753 | { "-title", 0, 10, 1 }, |
081bef73 RS |
1754 | { "-name", "--name", 10, 1 }, |
1755 | { "-xrm", "--xrm", 10, 1 }, | |
1540a61a | 1756 | { "-parent-id", "--parent-id", 10, 1 }, |
fcdeb5d9 RS |
1757 | { "-r", "--reverse-video", 5, 0 }, |
1758 | { "-rv", 0, 5, 0 }, | |
1759 | { "-reverse", 0, 5, 0 }, | |
ae63ae52 | 1760 | { "-hb", "--horizontal-scroll-bars", 5, 0 }, |
fcdeb5d9 | 1761 | { "-vb", "--vertical-scroll-bars", 5, 0 }, |
d20e1b1e | 1762 | { "-color", "--color", 5, 0}, |
16706228 JL |
1763 | { "-no-splash", "--no-splash", 3, 0 }, |
1764 | { "-no-desktop", "--no-desktop", 3, 0 }, | |
edfda783 AR |
1765 | #ifdef HAVE_NS |
1766 | { "-NSAutoLaunch", 0, 5, 1 }, | |
1767 | { "-NXAutoLaunch", 0, 5, 1 }, | |
1768 | { "-disable-font-backend", "--disable-font-backend", 65, 0 }, | |
1769 | { "-_NSMachLaunch", 0, 85, 1 }, | |
1770 | { "-MachLaunch", 0, 85, 1 }, | |
1771 | { "-macosx", 0, 85, 0 }, | |
1772 | { "-NSHost", 0, 85, 1 }, | |
1773 | #endif | |
fcdeb5d9 RS |
1774 | /* These have the same priority as ordinary file name args, |
1775 | so they are not reordered with respect to those. */ | |
4af9e0b3 RS |
1776 | { "-L", "--directory", 0, 1 }, |
1777 | { "-directory", 0, 0, 1 }, | |
fcdeb5d9 RS |
1778 | { "-l", "--load", 0, 1 }, |
1779 | { "-load", 0, 0, 1 }, | |
21a4ff8e GM |
1780 | /* This has no longname, because using --scriptload confuses sort_args, |
1781 | because then the --script long option seems to match twice; ie | |
1782 | you can't have a long option which is a prefix of another long | |
1783 | option. In any case, this is entirely an internal option. */ | |
1784 | { "-scriptload", NULL, 0, 1 }, | |
fcdeb5d9 RS |
1785 | { "-f", "--funcall", 0, 1 }, |
1786 | { "-funcall", 0, 0, 1 }, | |
575985b1 | 1787 | { "-eval", "--eval", 0, 1 }, |
67a5596f | 1788 | { "-execute", "--execute", 0, 1 }, |
2e13f8e9 RS |
1789 | { "-find-file", "--find-file", 0, 1 }, |
1790 | { "-visit", "--visit", 0, 1 }, | |
67a5596f | 1791 | { "-file", "--file", 0, 1 }, |
fcdeb5d9 | 1792 | { "-insert", "--insert", 0, 1 }, |
edfda783 AR |
1793 | #ifdef HAVE_NS |
1794 | { "-NXOpen", 0, 0, 1 }, | |
1795 | { "-NXOpenTemp", 0, 0, 1 }, | |
1796 | { "-NSOpen", 0, 0, 1 }, | |
1797 | { "-NSOpenTemp", 0, 0, 1 }, | |
1798 | { "-GSFilePath", 0, 0, 1 }, | |
1799 | #endif | |
f2bc3538 | 1800 | /* This should be processed after ordinary file name args and the like. */ |
fcdeb5d9 | 1801 | { "-kill", "--kill", -10, 0 }, |
081bef73 RS |
1802 | }; |
1803 | ||
1804 | /* Reorder the elements of ARGV (assumed to have ARGC elements) | |
1805 | so that the highest priority ones come first. | |
1806 | Do not change the order of elements of equal priority. | |
956e3c7e RS |
1807 | If an option takes an argument, keep it and its argument together. |
1808 | ||
1809 | If an option that takes no argument appears more | |
1810 | than once, eliminate all but one copy of it. */ | |
081bef73 RS |
1811 | |
1812 | static void | |
dd4c5104 | 1813 | sort_args (int argc, char **argv) |
081bef73 RS |
1814 | { |
1815 | char **new = (char **) xmalloc (sizeof (char *) * argc); | |
1816 | /* For each element of argv, | |
1817 | the corresponding element of options is: | |
1818 | 0 for an option that takes no arguments, | |
1819 | 1 for an option that takes one argument, etc. | |
1820 | -1 for an ordinary non-option argument. */ | |
6dad9359 | 1821 | int *options = (int *) xmalloc (sizeof (int) * argc); |
081bef73 RS |
1822 | int *priority = (int *) xmalloc (sizeof (int) * argc); |
1823 | int to = 1; | |
956e3c7e | 1824 | int incoming_used = 1; |
081bef73 RS |
1825 | int from; |
1826 | int i; | |
1827 | ||
1828 | /* Categorize all the options, | |
1829 | and figure out which argv elts are option arguments. */ | |
1830 | for (from = 1; from < argc; from++) | |
1831 | { | |
1832 | options[from] = -1; | |
fcdeb5d9 | 1833 | priority[from] = 0; |
081bef73 RS |
1834 | if (argv[from][0] == '-') |
1835 | { | |
1836 | int match, thislen; | |
1837 | char *equals; | |
1838 | ||
c96f26f4 RS |
1839 | /* If we have found "--", don't consider |
1840 | any more arguments as options. */ | |
249443b6 | 1841 | if (argv[from][1] == '-' && argv[from][2] == 0) |
c96f26f4 RS |
1842 | { |
1843 | /* Leave the "--", and everything following it, at the end. */ | |
1844 | for (; from < argc; from++) | |
1845 | { | |
1846 | priority[from] = -100; | |
1847 | options[from] = -1; | |
1848 | } | |
1849 | break; | |
1850 | } | |
1851 | ||
081bef73 RS |
1852 | /* Look for a match with a known old-fashioned option. */ |
1853 | for (i = 0; i < sizeof (standard_args) / sizeof (standard_args[0]); i++) | |
1854 | if (!strcmp (argv[from], standard_args[i].name)) | |
1855 | { | |
1856 | options[from] = standard_args[i].nargs; | |
1857 | priority[from] = standard_args[i].priority; | |
fd76ec52 RS |
1858 | if (from + standard_args[i].nargs >= argc) |
1859 | fatal ("Option `%s' requires an argument\n", argv[from]); | |
081bef73 RS |
1860 | from += standard_args[i].nargs; |
1861 | goto done; | |
1862 | } | |
1863 | ||
1864 | /* Look for a match with a known long option. | |
1865 | MATCH is -1 if no match so far, -2 if two or more matches so far, | |
1866 | >= 0 (the table index of the match) if just one match so far. */ | |
1867 | if (argv[from][1] == '-') | |
1868 | { | |
1869 | match = -1; | |
1870 | thislen = strlen (argv[from]); | |
8966b757 | 1871 | equals = strchr (argv[from], '='); |
081bef73 RS |
1872 | if (equals != 0) |
1873 | thislen = equals - argv[from]; | |
1874 | ||
f609ef57 KH |
1875 | for (i = 0; |
1876 | i < sizeof (standard_args) / sizeof (standard_args[0]); i++) | |
1877 | if (standard_args[i].longname | |
1878 | && !strncmp (argv[from], standard_args[i].longname, | |
1879 | thislen)) | |
081bef73 RS |
1880 | { |
1881 | if (match == -1) | |
1882 | match = i; | |
1883 | else | |
1884 | match = -2; | |
1885 | } | |
1886 | ||
1887 | /* If we found exactly one match, use that. */ | |
1888 | if (match >= 0) | |
1889 | { | |
1890 | options[from] = standard_args[match].nargs; | |
1891 | priority[from] = standard_args[match].priority; | |
1892 | /* If --OPTION=VALUE syntax is used, | |
1893 | this option uses just one argv element. */ | |
1894 | if (equals != 0) | |
1895 | options[from] = 0; | |
fd76ec52 RS |
1896 | if (from + options[from] >= argc) |
1897 | fatal ("Option `%s' requires an argument\n", argv[from]); | |
081bef73 RS |
1898 | from += options[from]; |
1899 | } | |
a09a5b5b GM |
1900 | /* FIXME When match < 0, shouldn't there be some error, |
1901 | or at least indication to the user that there was a | |
1902 | problem? */ | |
081bef73 RS |
1903 | } |
1904 | done: ; | |
1905 | } | |
1906 | } | |
1907 | ||
1908 | /* Copy the arguments, in order of decreasing priority, to NEW. */ | |
1909 | new[0] = argv[0]; | |
956e3c7e | 1910 | while (incoming_used < argc) |
081bef73 RS |
1911 | { |
1912 | int best = -1; | |
2c70c992 | 1913 | int best_priority = -9999; |
081bef73 RS |
1914 | |
1915 | /* Find the highest priority remaining option. | |
1916 | If several have equal priority, take the first of them. */ | |
1917 | for (from = 1; from < argc; from++) | |
1918 | { | |
1919 | if (argv[from] != 0 && priority[from] > best_priority) | |
1920 | { | |
1921 | best_priority = priority[from]; | |
1922 | best = from; | |
1923 | } | |
1924 | /* Skip option arguments--they are tied to the options. */ | |
1925 | if (options[from] > 0) | |
1926 | from += options[from]; | |
1927 | } | |
7db35a48 | 1928 | |
081bef73 RS |
1929 | if (best < 0) |
1930 | abort (); | |
1931 | ||
956e3c7e RS |
1932 | /* Copy the highest priority remaining option, with its args, to NEW. |
1933 | Unless it is a duplicate of the previous one. */ | |
1934 | if (! (options[best] == 0 | |
1935 | && ! strcmp (new[to - 1], argv[best]))) | |
1936 | { | |
1937 | new[to++] = argv[best]; | |
1938 | for (i = 0; i < options[best]; i++) | |
1939 | new[to++] = argv[best + i + 1]; | |
1940 | } | |
1941 | ||
1942 | incoming_used += 1 + (options[best] > 0 ? options[best] : 0); | |
081bef73 RS |
1943 | |
1944 | /* Clear out this option in ARGV. */ | |
1945 | argv[best] = 0; | |
1946 | for (i = 0; i < options[best]; i++) | |
1947 | argv[best + i + 1] = 0; | |
1948 | } | |
1949 | ||
81b7af72 RS |
1950 | /* If duplicate options were deleted, fill up extra space with null ptrs. */ |
1951 | while (to < argc) | |
1952 | new[to++] = 0; | |
1953 | ||
72af86bd | 1954 | memcpy (argv, new, sizeof (char *) * argc); |
0bf591da | 1955 | |
68db37aa KS |
1956 | xfree (options); |
1957 | xfree (new); | |
1958 | xfree (priority); | |
081bef73 RS |
1959 | } |
1960 | \f | |
a7ca3326 | 1961 | DEFUN ("kill-emacs", Fkill_emacs, Skill_emacs, 0, 1, "P", |
7db35a48 PJ |
1962 | doc: /* Exit the Emacs job and kill it. |
1963 | If ARG is an integer, return ARG as the exit program code. | |
b224de9b | 1964 | If ARG is a string, stuff it as keyboard input. |
7db35a48 | 1965 | |
9c524fcb | 1966 | This function is called upon receipt of the signals SIGTERM |
383ebd15 | 1967 | or SIGHUP, and upon SIGINT in batch mode. |
9c524fcb | 1968 | |
7db35a48 PJ |
1969 | The value of `kill-emacs-hook', if not void, |
1970 | is a list of functions (of no args), | |
1971 | all of which are called before Emacs is actually killed. */) | |
5842a27b | 1972 | (Lisp_Object arg) |
f927c5ae | 1973 | { |
f927c5ae | 1974 | struct gcpro gcpro1; |
dee091a3 | 1975 | Lisp_Object hook; |
f927c5ae JB |
1976 | |
1977 | GCPRO1 (arg); | |
1978 | ||
1979 | if (feof (stdin)) | |
1980 | arg = Qt; | |
1981 | ||
dee091a3 JD |
1982 | hook = intern ("kill-emacs-hook"); |
1983 | Frun_hooks (1, &hook); | |
f927c5ae | 1984 | |
f927c5ae JB |
1985 | UNGCPRO; |
1986 | ||
d0068e25 | 1987 | shut_down_emacs (0, 0, STRINGP (arg) ? arg : Qnil); |
40be253a | 1988 | |
58545838 KH |
1989 | /* If we have an auto-save list file, |
1990 | kill it because we are exiting Emacs deliberately (not crashing). | |
1991 | Do it after shut_down_emacs, which does an auto-save. */ | |
1992 | if (STRINGP (Vauto_save_list_file_name)) | |
42a5b22f | 1993 | unlink (SSDATA (Vauto_save_list_file_name)); |
58545838 | 1994 | |
fa439170 | 1995 | exit (INTEGERP (arg) ? XINT (arg) : EXIT_SUCCESS); |
f927c5ae | 1996 | } |
40be253a JB |
1997 | |
1998 | ||
1999 | /* Perform an orderly shutdown of Emacs. Autosave any modified | |
2000 | buffers, kill any child processes, clean up the terminal modes (if | |
2001 | we're in the foreground), and other stuff like that. Don't perform | |
2002 | any redisplay; this may be called when Emacs is shutting down in | |
2003 | the background, or after its X connection has died. | |
2004 | ||
2005 | If SIG is a signal number, print a message for it. | |
2006 | ||
2007 | This is called by fatal signal handlers, X protocol error handlers, | |
2008 | and Fkill_emacs. */ | |
f7ab4e3d | 2009 | |
40be253a | 2010 | void |
d5a3eaaf | 2011 | shut_down_emacs (int sig, int no_x, Lisp_Object stuff) |
40be253a | 2012 | { |
829d872b RS |
2013 | /* Prevent running of hooks from now on. */ |
2014 | Vrun_hooks = Qnil; | |
2015 | ||
9db03f6c KS |
2016 | /* Don't update display from now on. */ |
2017 | Vinhibit_redisplay = Qt; | |
2018 | ||
7db35a48 | 2019 | /* If we are controlling the terminal, reset terminal modes. */ |
a7ebc409 | 2020 | #ifndef DOS_NT |
40be253a | 2021 | { |
d04d81d2 | 2022 | int pgrp = EMACS_GETPGRP (0); |
12e610e8 DN |
2023 | int tpgrp = tcgetpgrp (0); |
2024 | if ((tpgrp != -1) && tpgrp == pgrp) | |
40be253a | 2025 | { |
28d440ab | 2026 | reset_all_sys_modes (); |
40be253a | 2027 | if (sig && sig != SIGTERM) |
6b61353c | 2028 | fprintf (stderr, "Fatal error (%d)", sig); |
40be253a JB |
2029 | } |
2030 | } | |
2031 | #else | |
2032 | fflush (stdout); | |
0a125897 | 2033 | reset_all_sys_modes (); |
40be253a JB |
2034 | #endif |
2035 | ||
f7ab4e3d RS |
2036 | stuff_buffered_input (stuff); |
2037 | ||
92d835a4 | 2038 | inhibit_sentinels = 1; |
40be253a JB |
2039 | kill_buffer_processes (Qnil); |
2040 | Fdo_auto_save (Qt, Qnil); | |
2041 | ||
2042 | #ifdef CLASH_DETECTION | |
2043 | unlock_all_files (); | |
2044 | #endif | |
2045 | ||
5e7f8733 | 2046 | #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */ |
41423a80 | 2047 | #ifdef HAVE_X_WINDOWS |
f7511647 | 2048 | /* It's not safe to call intern here. Maybe we are crashing. */ |
2246281f KL |
2049 | if (!noninteractive && SYMBOLP (Vinitial_window_system) |
2050 | && SCHARS (SYMBOL_NAME (Vinitial_window_system)) == 1 | |
2051 | && SREF (SYMBOL_NAME (Vinitial_window_system), 0) == 'x' | |
f7511647 | 2052 | && ! no_x) |
41423a80 RS |
2053 | Fx_close_current_connection (); |
2054 | #endif /* HAVE_X_WINDOWS */ | |
5e7f8733 | 2055 | #endif |
41423a80 | 2056 | |
40be253a JB |
2057 | #ifdef SIGIO |
2058 | /* There is a tendency for a SIGIO signal to arrive within exit, | |
2059 | and cause a SIGHUP because the input descriptor is already closed. */ | |
2060 | unrequest_sigio (); | |
2061 | signal (SIGIO, SIG_IGN); | |
2062 | #endif | |
41f339d4 RS |
2063 | |
2064 | #ifdef WINDOWSNT | |
2065 | term_ntproc (); | |
2066 | #endif | |
d546e578 | 2067 | |
cd8d4168 GM |
2068 | /* Do this only if terminating normally, we want glyph matrices |
2069 | etc. in a core dump. */ | |
200f868e | 2070 | if (sig == 0 || sig == SIGTERM) |
cd8d4168 GM |
2071 | { |
2072 | check_glyph_memory (); | |
2073 | check_message_stack (); | |
2074 | } | |
90d920b6 | 2075 | |
d546e578 EZ |
2076 | #ifdef MSDOS |
2077 | dos_cleanup (); | |
2078 | #endif | |
edfda783 AR |
2079 | |
2080 | #ifdef HAVE_NS | |
2081 | ns_term_shutdown (sig); | |
2082 | #endif | |
40be253a JB |
2083 | } |
2084 | ||
2085 | ||
f927c5ae JB |
2086 | \f |
2087 | #ifndef CANNOT_DUMP | |
f927c5ae | 2088 | |
ce701a33 | 2089 | #include "unexec.h" |
dd5ecd6b | 2090 | |
f927c5ae | 2091 | DEFUN ("dump-emacs", Fdump_emacs, Sdump_emacs, 2, 2, 0, |
7db35a48 PJ |
2092 | doc: /* Dump current state of Emacs into executable file FILENAME. |
2093 | Take symbols from SYMFILE (presumably the file you executed to run Emacs). | |
2094 | This is used in the file `loadup.el' when building Emacs. | |
2095 | ||
2096 | You must run Emacs in batch mode in order to dump it. */) | |
5842a27b | 2097 | (Lisp_Object filename, Lisp_Object symfile) |
f927c5ae | 2098 | { |
f927c5ae | 2099 | Lisp_Object tem; |
1b7ddf4f | 2100 | Lisp_Object symbol; |
331379bf | 2101 | int count = SPECPDL_INDEX (); |
4fab758d GM |
2102 | |
2103 | check_pure_size (); | |
f927c5ae | 2104 | |
87a98b1a RS |
2105 | if (! noninteractive) |
2106 | error ("Dumping Emacs works only in batch mode"); | |
2107 | ||
848a925e | 2108 | #ifdef GNU_LINUX |
c339dc2e PE |
2109 | |
2110 | /* Warn if the gap between BSS end and heap start is larger than this. */ | |
2111 | # define MAX_HEAP_BSS_DIFF (1024*1024) | |
2112 | ||
dede2792 JD |
2113 | if (heap_bss_diff > MAX_HEAP_BSS_DIFF) |
2114 | { | |
2115 | fprintf (stderr, "**************************************************\n"); | |
2116 | fprintf (stderr, "Warning: Your system has a gap between BSS and the\n"); | |
e79beb56 | 2117 | fprintf (stderr, "heap (%lu bytes). This usually means that exec-shield\n", |
c37caf9d JD |
2118 | heap_bss_diff); |
2119 | fprintf (stderr, "or something similar is in effect. The dump may\n"); | |
e79beb56 | 2120 | fprintf (stderr, "fail because of this. See the section about\n"); |
c37caf9d | 2121 | fprintf (stderr, "exec-shield in etc/PROBLEMS for more information.\n"); |
dede2792 JD |
2122 | fprintf (stderr, "**************************************************\n"); |
2123 | } | |
848a925e | 2124 | #endif /* GNU_LINUX */ |
dede2792 | 2125 | |
1b7ddf4f RS |
2126 | /* Bind `command-line-processed' to nil before dumping, |
2127 | so that the dumped Emacs will process its command line | |
2128 | and set up to work with X windows if appropriate. */ | |
4aaa3607 | 2129 | symbol = intern ("command-line-processed"); |
1b7ddf4f RS |
2130 | specbind (symbol, Qnil); |
2131 | ||
b7826503 | 2132 | CHECK_STRING (filename); |
c9aae259 EN |
2133 | filename = Fexpand_file_name (filename, Qnil); |
2134 | if (!NILP (symfile)) | |
f927c5ae | 2135 | { |
b7826503 | 2136 | CHECK_STRING (symfile); |
d5db4077 | 2137 | if (SCHARS (symfile)) |
c9aae259 | 2138 | symfile = Fexpand_file_name (symfile, Qnil); |
f927c5ae JB |
2139 | } |
2140 | ||
2141 | tem = Vpurify_flag; | |
2142 | Vpurify_flag = Qnil; | |
2143 | ||
0269dedb RS |
2144 | #ifdef HAVE_TZSET |
2145 | set_time_zone_rule (dump_tz); | |
2146 | #ifndef LOCALTIME_CACHE | |
2147 | /* Force a tz reload, since set_time_zone_rule doesn't. */ | |
2148 | tzset (); | |
2149 | #endif | |
2150 | #endif | |
2151 | ||
f927c5ae | 2152 | fflush (stdout); |
7db35a48 | 2153 | /* Tell malloc where start of impure now is. */ |
f927c5ae JB |
2154 | /* Also arrange for warnings when nearly out of space. */ |
2155 | #ifndef SYSTEM_MALLOC | |
cc5f52cb RS |
2156 | #ifndef WINDOWSNT |
2157 | /* On Windows, this was done before dumping, and that once suffices. | |
2158 | Meanwhile, my_edata is not valid on Windows. */ | |
c339dc2e PE |
2159 | { |
2160 | extern char my_edata[]; | |
2161 | memory_warnings (my_edata, malloc_warning); | |
2162 | } | |
cc5f52cb | 2163 | #endif /* not WINDOWSNT */ |
dd5ecd6b | 2164 | #if defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT |
aa477689 JD |
2165 | /* Pthread may call malloc before main, and then we will get an endless |
2166 | loop, because pthread_self (see alloc.c) calls malloc the first time | |
2167 | it is called on some systems. */ | |
2168 | reset_malloc_hooks (); | |
2169 | #endif | |
dd5ecd6b | 2170 | #endif /* not SYSTEM_MALLOC */ |
15aaf1b5 RS |
2171 | #ifdef DOUG_LEA_MALLOC |
2172 | malloc_state_ptr = malloc_get_state (); | |
f927c5ae | 2173 | #endif |
2b7377ca | 2174 | |
a74c5ec1 | 2175 | #ifdef USE_MMAP_FOR_BUFFERS |
2b7377ca GM |
2176 | mmap_set_vars (0); |
2177 | #endif | |
42a5b22f | 2178 | unexec (SSDATA (filename), !NILP (symfile) ? SSDATA (symfile) : 0); |
a74c5ec1 | 2179 | #ifdef USE_MMAP_FOR_BUFFERS |
2b7377ca GM |
2180 | mmap_set_vars (1); |
2181 | #endif | |
15aaf1b5 RS |
2182 | #ifdef DOUG_LEA_MALLOC |
2183 | free (malloc_state_ptr); | |
2184 | #endif | |
f927c5ae JB |
2185 | |
2186 | Vpurify_flag = tem; | |
2187 | ||
1b7ddf4f | 2188 | return unbind_to (count, Qnil); |
f927c5ae JB |
2189 | } |
2190 | ||
f927c5ae JB |
2191 | #endif /* not CANNOT_DUMP */ |
2192 | \f | |
68c45bf0 PE |
2193 | #if HAVE_SETLOCALE |
2194 | /* Recover from setlocale (LC_ALL, ""). */ | |
2195 | void | |
d5a3eaaf | 2196 | fixup_locale (void) |
68c45bf0 | 2197 | { |
68c45bf0 PE |
2198 | /* The Emacs Lisp reader needs LC_NUMERIC to be "C", |
2199 | so that numbers are read and printed properly for Emacs Lisp. */ | |
2200 | setlocale (LC_NUMERIC, "C"); | |
68c45bf0 PE |
2201 | } |
2202 | ||
0c8559bb PE |
2203 | /* Set system locale CATEGORY, with previous locale *PLOCALE, to |
2204 | DESIRED_LOCALE. */ | |
68c45bf0 | 2205 | static void |
dd4c5104 | 2206 | synchronize_locale (int category, Lisp_Object *plocale, Lisp_Object desired_locale) |
68c45bf0 | 2207 | { |
0c8559bb PE |
2208 | if (! EQ (*plocale, desired_locale)) |
2209 | { | |
2210 | *plocale = desired_locale; | |
2211 | setlocale (category, (STRINGP (desired_locale) | |
51b59d79 | 2212 | ? SSDATA (desired_locale) |
0c8559bb PE |
2213 | : "")); |
2214 | } | |
68c45bf0 PE |
2215 | } |
2216 | ||
ca9c0567 | 2217 | /* Set system time locale to match Vsystem_time_locale, if possible. */ |
68c45bf0 | 2218 | void |
d5a3eaaf | 2219 | synchronize_system_time_locale (void) |
68c45bf0 | 2220 | { |
ca9c0567 PE |
2221 | synchronize_locale (LC_TIME, &Vprevious_system_time_locale, |
2222 | Vsystem_time_locale); | |
68c45bf0 PE |
2223 | } |
2224 | ||
ca9c0567 PE |
2225 | /* Set system messages locale to match Vsystem_messages_locale, if |
2226 | possible. */ | |
68c45bf0 | 2227 | void |
d5a3eaaf | 2228 | synchronize_system_messages_locale (void) |
68c45bf0 PE |
2229 | { |
2230 | #ifdef LC_MESSAGES | |
ca9c0567 PE |
2231 | synchronize_locale (LC_MESSAGES, &Vprevious_system_messages_locale, |
2232 | Vsystem_messages_locale); | |
68c45bf0 PE |
2233 | #endif |
2234 | } | |
2235 | #endif /* HAVE_SETLOCALE */ | |
2236 | \f | |
4b163808 | 2237 | #ifndef SEPCHAR |
f927c5ae JB |
2238 | #define SEPCHAR ':' |
2239 | #endif | |
2240 | ||
2241 | Lisp_Object | |
a8fe7202 | 2242 | decode_env_path (const char *evarname, const char *defalt) |
f927c5ae | 2243 | { |
a8fe7202 | 2244 | const char *path, *p; |
213d0b1f | 2245 | Lisp_Object lpath, element, tem; |
f927c5ae | 2246 | |
2447c626 JB |
2247 | /* It's okay to use getenv here, because this function is only used |
2248 | to initialize variables when Emacs starts up, and isn't called | |
2249 | after that. */ | |
e065a56e | 2250 | if (evarname != 0) |
a8fe7202 | 2251 | path = getenv (evarname); |
e065a56e JB |
2252 | else |
2253 | path = 0; | |
f927c5ae JB |
2254 | if (!path) |
2255 | path = defalt; | |
6a30e6d6 RS |
2256 | #ifdef DOS_NT |
2257 | /* Ensure values from the environment use the proper directory separator. */ | |
2258 | if (path) | |
2259 | { | |
a8fe7202 AS |
2260 | char *path_copy = alloca (strlen (path) + 1); |
2261 | strcpy (path_copy, path); | |
2262 | dostounix_filename (path_copy); | |
2263 | path = path_copy; | |
6a30e6d6 RS |
2264 | } |
2265 | #endif | |
f927c5ae JB |
2266 | lpath = Qnil; |
2267 | while (1) | |
2268 | { | |
8966b757 | 2269 | p = strchr (path, SEPCHAR); |
a8fe7202 AS |
2270 | if (!p) |
2271 | p = path + strlen (path); | |
213d0b1f RS |
2272 | element = (p - path ? make_string (path, p - path) |
2273 | : build_string (".")); | |
2274 | ||
2275 | /* Add /: to the front of the name | |
2276 | if it would otherwise be treated as magic. */ | |
2277 | tem = Ffind_file_name_handler (element, Qt); | |
ca3df2d5 RS |
2278 | |
2279 | /* However, if the handler says "I'm safe", | |
2280 | don't bother adding /:. */ | |
2281 | if (SYMBOLP (tem)) | |
2282 | { | |
2283 | Lisp_Object prop; | |
2284 | prop = Fget (tem, intern ("safe-magic")); | |
2285 | if (! NILP (prop)) | |
2286 | tem = Qnil; | |
2287 | } | |
2288 | ||
213d0b1f RS |
2289 | if (! NILP (tem)) |
2290 | element = concat2 (build_string ("/:"), element); | |
2291 | ||
2292 | lpath = Fcons (element, lpath); | |
f927c5ae JB |
2293 | if (*p) |
2294 | path = p + 1; | |
2295 | else | |
2296 | break; | |
2297 | } | |
2298 | return Fnreverse (lpath); | |
2299 | } | |
2300 | ||
eab2ee89 | 2301 | DEFUN ("daemonp", Fdaemonp, Sdaemonp, 0, 0, 0, |
4ff029f6 DN |
2302 | doc: /* Return non-nil if the current emacs process is a daemon. |
2303 | If the daemon was given a name argument, return that name. */) | |
5842a27b | 2304 | (void) |
eab2ee89 | 2305 | { |
fc012771 | 2306 | if (IS_DAEMON) |
4ff029f6 DN |
2307 | if (daemon_name) |
2308 | return build_string (daemon_name); | |
2309 | else | |
2310 | return Qt; | |
2311 | else | |
2312 | return Qnil; | |
eab2ee89 DN |
2313 | } |
2314 | ||
5790ef40 | 2315 | DEFUN ("daemon-initialized", Fdaemon_initialized, Sdaemon_initialized, 0, 0, 0, |
fc012771 SM |
2316 | doc: /* Mark the Emacs daemon as being initialized. |
2317 | This finishes the daemonization process by doing the other half of detaching | |
2318 | from the parent process and its tty file descriptors. */) | |
5842a27b | 2319 | (void) |
5790ef40 DN |
2320 | { |
2321 | int nfd; | |
dc1ca6a8 | 2322 | int err = 0; |
5790ef40 | 2323 | |
fc012771 | 2324 | if (!IS_DAEMON) |
5790ef40 DN |
2325 | error ("This function can only be called if emacs is run as a daemon"); |
2326 | ||
2327 | if (daemon_pipe[1] < 0) | |
2328 | error ("The daemon has already been initialized"); | |
2329 | ||
2330 | if (NILP (Vafter_init_time)) | |
2331 | error ("This function can only be called after loading the init files"); | |
2332 | ||
2333 | /* Get rid of stdin, stdout and stderr. */ | |
29dadb54 | 2334 | nfd = open ("/dev/null", O_RDWR); |
dc1ca6a8 PE |
2335 | err |= nfd < 0; |
2336 | err |= dup2 (nfd, 0) < 0; | |
2337 | err |= dup2 (nfd, 1) < 0; | |
2338 | err |= dup2 (nfd, 2) < 0; | |
2339 | err |= close (nfd) != 0; | |
5790ef40 | 2340 | |
fc012771 SM |
2341 | /* Closing the pipe will notify the parent that it can exit. |
2342 | FIXME: In case some other process inherited the pipe, closing it here | |
2343 | won't notify the parent because it's still open elsewhere, so we | |
2344 | additionally send a byte, just to make sure the parent really exits. | |
2345 | Instead, we should probably close the pipe in start-process and | |
2346 | call-process to make sure the pipe is never inherited by | |
2347 | subprocesses. */ | |
dc1ca6a8 PE |
2348 | err |= write (daemon_pipe[1], "\n", 1) < 0; |
2349 | err |= close (daemon_pipe[1]) != 0; | |
5790ef40 DN |
2350 | /* Set it to an invalid value so we know we've already run this function. */ |
2351 | daemon_pipe[1] = -1; | |
dc1ca6a8 PE |
2352 | |
2353 | if (err) | |
2354 | error ("I/O error during daemon initialization"); | |
5790ef40 DN |
2355 | return Qt; |
2356 | } | |
2357 | ||
dfcf069d | 2358 | void |
d5a3eaaf | 2359 | syms_of_emacs (void) |
f927c5ae | 2360 | { |
d67b4f80 | 2361 | Qfile_name_handler_alist = intern_c_string ("file-name-handler-alist"); |
213d0b1f | 2362 | staticpro (&Qfile_name_handler_alist); |
9dc3366b GM |
2363 | Qrisky_local_variable = intern_c_string ("risky-local-variable"); |
2364 | staticpro (&Qrisky_local_variable); | |
213d0b1f | 2365 | |
83591e66 | 2366 | #ifndef CANNOT_DUMP |
f927c5ae JB |
2367 | defsubr (&Sdump_emacs); |
2368 | #endif | |
2369 | ||
2370 | defsubr (&Skill_emacs); | |
2371 | ||
59653951 | 2372 | defsubr (&Sinvocation_name); |
ace40a69 | 2373 | defsubr (&Sinvocation_directory); |
eab2ee89 | 2374 | defsubr (&Sdaemonp); |
5790ef40 | 2375 | defsubr (&Sdaemon_initialized); |
59653951 | 2376 | |
29208e82 | 2377 | DEFVAR_LISP ("command-line-args", Vcommand_line_args, |
2a9d2ed6 RS |
2378 | doc: /* Args passed by shell to Emacs, as a list of strings. |
2379 | Many arguments are deleted from the list as they are processed. */); | |
f927c5ae | 2380 | |
29208e82 | 2381 | DEFVAR_LISP ("system-type", Vsystem_type, |
cf59a374 | 2382 | doc: /* The value is a symbol indicating the type of operating system you are using. |
40a8993a | 2383 | Special values: |
cf59a374 GM |
2384 | `gnu' compiled for a GNU Hurd system. |
2385 | `gnu/linux' compiled for a GNU/Linux system. | |
2386 | `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel. | |
2387 | `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...). | |
2388 | `ms-dos' compiled as an MS-DOS application. | |
2389 | `windows-nt' compiled as a native W32 application. | |
2390 | `cygwin' compiled using the Cygwin library. | |
bd6bc222 GM |
2391 | Anything else (in Emacs 24.1, the possibilities are: aix, berkeley-unix, |
2392 | hpux, irix, usg-unix-v) indicates some sort of Unix system. */); | |
d67b4f80 | 2393 | Vsystem_type = intern_c_string (SYSTEM_TYPE); |
60393507 | 2394 | /* The above values are from SYSTEM_TYPE in include files under src/s. */ |
f927c5ae | 2395 | |
29208e82 | 2396 | DEFVAR_LISP ("system-configuration", Vsystem_configuration, |
7db35a48 PJ |
2397 | doc: /* Value is string indicating configuration Emacs was built for. |
2398 | On MS-Windows, the value reflects the OS flavor and version on which | |
2399 | Emacs is running. */); | |
f7511647 | 2400 | Vsystem_configuration = build_string (EMACS_CONFIGURATION); |
271c7b7c | 2401 | |
29208e82 | 2402 | DEFVAR_LISP ("system-configuration-options", Vsystem_configuration_options, |
7db35a48 | 2403 | doc: /* String containing the configuration options Emacs was built with. */); |
f0fc0b1a KH |
2404 | Vsystem_configuration_options = build_string (EMACS_CONFIG_OPTIONS); |
2405 | ||
29208e82 | 2406 | DEFVAR_BOOL ("noninteractive", noninteractive1, |
7db35a48 | 2407 | doc: /* Non-nil means Emacs is running without interactive terminal. */); |
e5d77022 | 2408 | |
29208e82 | 2409 | DEFVAR_LISP ("kill-emacs-hook", Vkill_emacs_hook, |
e79beb56 | 2410 | doc: /* Hook to be run when `kill-emacs' is called. |
d77b70e5 | 2411 | Since `kill-emacs' may be invoked when the terminal is disconnected (or |
7db35a48 PJ |
2412 | in other similar situations), functions placed on this hook should not |
2413 | expect to be able to interact with the user. To ask for confirmation, | |
d77b70e5 MR |
2414 | see `kill-emacs-query-functions' instead. |
2415 | ||
9c524fcb GM |
2416 | Before Emacs 24.1, the hook was not run in batch mode, i.e., if |
2417 | `noninteractive' was non-nil. */); | |
edc8ae07 | 2418 | Vkill_emacs_hook = Qnil; |
3005da00 | 2419 | |
29208e82 | 2420 | DEFVAR_LISP ("path-separator", Vpath_separator, |
c7ed3276 EZ |
2421 | doc: /* String containing the character that separates directories in |
2422 | search paths, such as PATH and other similar environment variables. */); | |
074a066b GV |
2423 | { |
2424 | char c = SEPCHAR; | |
2425 | Vpath_separator = make_string (&c, 1); | |
2426 | } | |
59653951 | 2427 | |
29208e82 | 2428 | DEFVAR_LISP ("invocation-name", Vinvocation_name, |
7db35a48 PJ |
2429 | doc: /* The program name that was used to run Emacs. |
2430 | Any directory names are omitted. */); | |
f67de86f | 2431 | |
29208e82 | 2432 | DEFVAR_LISP ("invocation-directory", Vinvocation_directory, |
7db35a48 PJ |
2433 | doc: /* The directory in which the Emacs executable was found, to run it. |
2434 | The value is nil if that directory's name is not known. */); | |
f67de86f | 2435 | |
29208e82 | 2436 | DEFVAR_LISP ("installation-directory", Vinstallation_directory, |
7db35a48 | 2437 | doc: /* A directory within which to look for the `lib-src' and `etc' directories. |
e58a672c RS |
2438 | This is non-nil when we can't find those directories in their standard |
2439 | installed locations, but we can find them near where the Emacs executable | |
2440 | was found. */); | |
07f4d123 | 2441 | Vinstallation_directory = Qnil; |
68c45bf0 | 2442 | |
29208e82 | 2443 | DEFVAR_LISP ("system-messages-locale", Vsystem_messages_locale, |
7db35a48 | 2444 | doc: /* System locale for messages. */); |
ca9c0567 | 2445 | Vsystem_messages_locale = Qnil; |
68c45bf0 | 2446 | |
ca9c0567 | 2447 | DEFVAR_LISP ("previous-system-messages-locale", |
29208e82 | 2448 | Vprevious_system_messages_locale, |
7db35a48 | 2449 | doc: /* Most recently used system locale for messages. */); |
ca9c0567 | 2450 | Vprevious_system_messages_locale = Qnil; |
68c45bf0 | 2451 | |
29208e82 | 2452 | DEFVAR_LISP ("system-time-locale", Vsystem_time_locale, |
7db35a48 | 2453 | doc: /* System locale for time. */); |
ca9c0567 | 2454 | Vsystem_time_locale = Qnil; |
68c45bf0 | 2455 | |
29208e82 | 2456 | DEFVAR_LISP ("previous-system-time-locale", Vprevious_system_time_locale, |
7db35a48 | 2457 | doc: /* Most recently used system locale for time. */); |
ca9c0567 | 2458 | Vprevious_system_time_locale = Qnil; |
90503d96 | 2459 | |
29208e82 | 2460 | DEFVAR_LISP ("before-init-time", Vbefore_init_time, |
90503d96 CY |
2461 | doc: /* Value of `current-time' before Emacs begins initialization. */); |
2462 | Vbefore_init_time = Qnil; | |
2463 | ||
29208e82 | 2464 | DEFVAR_LISP ("after-init-time", Vafter_init_time, |
90503d96 CY |
2465 | doc: /* Value of `current-time' after loading the init files. |
2466 | This is nil during initialization. */); | |
2467 | Vafter_init_time = Qnil; | |
fc012771 | 2468 | |
29208e82 | 2469 | DEFVAR_BOOL ("inhibit-x-resources", inhibit_x_resources, |
9b68317c | 2470 | doc: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */); |
8686ac71 JB |
2471 | inhibit_x_resources = 0; |
2472 | ||
29208e82 | 2473 | DEFVAR_LISP ("emacs-copyright", Vemacs_copyright, |
8c5ff6dd KR |
2474 | doc: /* Short copyright string for this version of Emacs. */); |
2475 | Vemacs_copyright = build_string (emacs_copyright); | |
2476 | ||
29208e82 | 2477 | DEFVAR_LISP ("emacs-version", Vemacs_version, |
8c5ff6dd KR |
2478 | doc: /* Version numbers of this version of Emacs. */); |
2479 | Vemacs_version = build_string (emacs_version); | |
2480 | ||
29208e82 | 2481 | DEFVAR_LISP ("dynamic-library-alist", Vdynamic_library_alist, |
2e288d54 JB |
2482 | doc: /* Alist of dynamic libraries vs external files implementing them. |
2483 | Each element is a list (LIBRARY FILE...), where the car is a symbol | |
2484 | representing a supported external library, and the rest are strings giving | |
2485 | alternate filenames for that library. | |
2486 | ||
2487 | Emacs tries to load the library from the files in the order they appear on | |
2488 | the list; if none is loaded, the running session of Emacs won't have access | |
2489 | to that library. | |
2490 | ||
2491 | Note that image types `pbm' and `xbm' do not need entries in this variable | |
2492 | because they do not depend on external libraries and are always available. | |
2493 | ||
2494 | Also note that this is not a generic facility for accessing external | |
2495 | libraries; only those already known by Emacs will be loaded. */); | |
2496 | Vdynamic_library_alist = Qnil; | |
2497 | Fput (intern_c_string ("dynamic-library-alist"), Qrisky_local_variable, Qt); | |
2498 | ||
fc012771 SM |
2499 | /* Make sure IS_DAEMON starts up as false. */ |
2500 | daemon_pipe[1] = 0; | |
f927c5ae | 2501 | } |