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 | |
0898ca10 JB |
32 | #include "lisp.h" |
33 | ||
edd3ff1d JR |
34 | #ifdef WINDOWSNT |
35 | #include <fcntl.h> | |
52c7f9ee JR |
36 | #include <windows.h> /* just for w32.h */ |
37 | #include "w32.h" | |
c68a2829 | 38 | #include "w32heap.h" /* for prototype of sbrk */ |
edd3ff1d JR |
39 | #endif |
40 | ||
edfda783 AR |
41 | #ifdef NS_IMPL_GNUSTEP |
42 | /* At least under Debian, GSConfig is in a subdirectory. --Stef */ | |
43 | #include <GNUstepBase/GSConfig.h> | |
44 | #endif | |
45 | ||
f927c5ae | 46 | #include "commands.h" |
bef79ee4 | 47 | #include "intervals.h" |
a08a816a | 48 | #include "buffer.h" |
3f6abfd7 | 49 | #include "window.h" |
f927c5ae | 50 | |
edc8ae07 | 51 | #include "systty.h" |
6c3a4e9d | 52 | #include "blockinput.h" |
8090eb09 | 53 | #include "syssignal.h" |
6c362a8b | 54 | #include "process.h" |
428a555e | 55 | #include "frame.h" |
5bda49c6 | 56 | #include "termhooks.h" |
dfcf069d | 57 | #include "keyboard.h" |
e35f6ff7 | 58 | #include "keymap.h" |
a41f8bed | 59 | |
8af55556 TZ |
60 | #ifdef HAVE_GNUTLS |
61 | #include "gnutls.h" | |
62 | #endif | |
63 | ||
3d608a86 J |
64 | #ifdef HAVE_NS |
65 | #include "nsterm.h" | |
66 | #endif | |
67 | ||
5fbc2025 PE |
68 | #ifdef HAVE_X_WINDOWS |
69 | #include "xterm.h" | |
70 | #endif | |
71 | ||
68c45bf0 PE |
72 | #ifdef HAVE_SETLOCALE |
73 | #include <locale.h> | |
74 | #endif | |
75 | ||
53c58b5d RS |
76 | #ifdef HAVE_SETRLIMIT |
77 | #include <sys/time.h> | |
78 | #include <sys/resource.h> | |
79 | #endif | |
80 | ||
dede2792 JD |
81 | #ifdef HAVE_PERSONALITY_LINUX32 |
82 | #include <sys/personality.h> | |
83 | #endif | |
84 | ||
f927c5ae JB |
85 | #ifndef O_RDWR |
86 | #define O_RDWR 2 | |
87 | #endif | |
88 | ||
f95c3f91 | 89 | #ifdef HAVE_SETPGID |
58eb6cf0 | 90 | #if !defined (USG) |
90553aa3 | 91 | #undef setpgrp |
f95c3f91 GM |
92 | #define setpgrp setpgid |
93 | #endif | |
2b7e8799 | 94 | #endif |
f95c3f91 | 95 | |
16fab143 | 96 | static const char emacs_version[] = VERSION; |
3f9b7090 | 97 | static const char emacs_copyright[] = "Copyright (C) 2011 Free Software Foundation, Inc."; |
8c5ff6dd | 98 | |
30aa3f19 GM |
99 | /* Make these values available in GDB, which doesn't see macros. */ |
100 | ||
6b61353c | 101 | #ifdef USE_LSB_TAG |
42c8bc9b | 102 | int gdb_use_lsb EXTERNALLY_VISIBLE = 1; |
6b61353c | 103 | #else |
42c8bc9b | 104 | int gdb_use_lsb EXTERNALLY_VISIBLE = 0; |
6b61353c | 105 | #endif |
6e5cb96f | 106 | #ifndef USE_LISP_UNION_TYPE |
42c8bc9b | 107 | int gdb_use_union EXTERNALLY_VISIBLE = 0; |
6b61353c | 108 | #else |
42c8bc9b | 109 | int gdb_use_union EXTERNALLY_VISIBLE = 1; |
6b61353c | 110 | #endif |
42c8bc9b DN |
111 | EMACS_INT gdb_valbits EXTERNALLY_VISIBLE = VALBITS; |
112 | EMACS_INT gdb_gctypebits EXTERNALLY_VISIBLE = GCTYPEBITS; | |
4f7cb96d | 113 | #if defined (DATA_SEG_BITS) && ! defined (USE_LSB_TAG) |
42c8bc9b | 114 | EMACS_INT gdb_data_seg_bits EXTERNALLY_VISIBLE = DATA_SEG_BITS; |
30aa3f19 | 115 | #else |
42c8bc9b | 116 | EMACS_INT gdb_data_seg_bits EXTERNALLY_VISIBLE = 0; |
30aa3f19 | 117 | #endif |
42c8bc9b DN |
118 | EMACS_INT PVEC_FLAG EXTERNALLY_VISIBLE = PSEUDOVECTOR_FLAG; |
119 | EMACS_INT gdb_array_mark_flag EXTERNALLY_VISIBLE = ARRAY_MARK_FLAG; | |
6baa02d6 EZ |
120 | /* GDB might say "No enum type named pvec_type" if we don't have at |
121 | least one symbol with that type, and then xbacktrace could fail. */ | |
42c8bc9b | 122 | enum pvec_type gdb_pvec_type EXTERNALLY_VISIBLE = PVEC_TYPE_MASK; |
30aa3f19 | 123 | |
7e9fa161 JB |
124 | /* Empty lisp strings. To avoid having to build any others. */ |
125 | Lisp_Object empty_unibyte_string, empty_multibyte_string; | |
f9a6326d | 126 | |
f927c5ae JB |
127 | /* Set nonzero after Emacs has started up the first time. |
128 | Prevents reinitialization of the Lisp world and keymaps | |
129 | on subsequent starts. */ | |
130 | int initialized; | |
131 | ||
4393663b JD |
132 | #ifdef DARWIN_OS |
133 | extern void unexec_init_emacs_zone (void); | |
134 | #endif | |
135 | ||
15aaf1b5 RS |
136 | #ifdef DOUG_LEA_MALLOC |
137 | /* Preserves a pointer to the memory allocated that copies that | |
138 | static data inside glibc's malloc. */ | |
35f08c38 | 139 | static void *malloc_state_ptr; |
15aaf1b5 | 140 | /* From glibc, a routine that returns a copy of the malloc internal state. */ |
dd4c5104 | 141 | extern void *malloc_get_state (void); |
15aaf1b5 | 142 | /* From glibc, a routine that overwrites the malloc internal state. */ |
dd4c5104 | 143 | extern int malloc_set_state (void*); |
768c0c0f | 144 | /* Non-zero if the MALLOC_CHECK_ environment variable was set while |
7c9cd446 | 145 | dumping. Used to work around a bug in glibc's malloc. */ |
35f08c38 | 146 | static int malloc_using_checking; |
15aaf1b5 RS |
147 | #endif |
148 | ||
213d0b1f RS |
149 | Lisp_Object Qfile_name_handler_alist; |
150 | ||
9dc3366b GM |
151 | Lisp_Object Qrisky_local_variable; |
152 | ||
62973b41 | 153 | /* If non-zero, Emacs should not attempt to use a window-specific code, |
7db35a48 | 154 | but instead should use the virtual terminal under which it was started. */ |
f927c5ae JB |
155 | int inhibit_window_system; |
156 | ||
7db35a48 PJ |
157 | /* If non-zero, a filter or a sentinel is running. Tested to save the match |
158 | data on the first attempt to change it inside asynchronous code. */ | |
7074fde6 FP |
159 | int running_asynch_code; |
160 | ||
edfda783 | 161 | #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS) |
7db35a48 | 162 | /* If non-zero, -d was specified, meaning we're using some window system. */ |
f927c5ae JB |
163 | int display_arg; |
164 | #endif | |
165 | ||
166 | /* An address near the bottom of the stack. | |
167 | Tells GC how to save a copy of the stack. */ | |
168 | char *stack_bottom; | |
169 | ||
dede2792 JD |
170 | /* The address where the heap starts (from the first sbrk (0) call). */ |
171 | static void *my_heap_start; | |
172 | ||
b312a492 | 173 | #ifdef GNU_LINUX |
dede2792 | 174 | /* The gap between BSS end and heap start as far as we can tell. */ |
b312a492 PE |
175 | static uprintmax_t heap_bss_diff; |
176 | #endif | |
dede2792 | 177 | |
f927c5ae | 178 | /* Nonzero means running Emacs without interactive terminal. */ |
f927c5ae JB |
179 | int noninteractive; |
180 | ||
66b7b0fe GM |
181 | /* Nonzero means remove site-lisp directories from load-path. */ |
182 | int no_site_lisp; | |
183 | ||
4ff029f6 DN |
184 | /* Name for the server started by the daemon.*/ |
185 | static char *daemon_name; | |
eab2ee89 | 186 | |
5790ef40 DN |
187 | /* Pipe used to send exit notification to the daemon parent at |
188 | startup. */ | |
ff808935 | 189 | int daemon_pipe[2]; |
fc012771 | 190 | |
e29f86e4 RS |
191 | /* Save argv and argc. */ |
192 | char **initial_argv; | |
193 | int initial_argc; | |
081bef73 | 194 | |
dd4c5104 | 195 | static void sort_args (int argc, char **argv); |
35f08c38 | 196 | static void syms_of_emacs (void); |
bd4590ba | 197 | |
6b61353c KH |
198 | /* MSVC needs each string be shorter than 2048 bytes, so the usage |
199 | strings below are split to not overflow this limit. */ | |
73ebcd25 | 200 | #define USAGE1 "\ |
bd4590ba GM |
201 | Usage: %s [OPTION-OR-FILENAME]...\n\ |
202 | \n\ | |
203 | Run Emacs, the extensible, customizable, self-documenting real-time\n\ | |
204 | display editor. The recommended way to start Emacs for normal editing\n\ | |
205 | is with no options at all.\n\ | |
206 | \n\ | |
49ca717b | 207 | Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\ |
bd4590ba GM |
208 | read the main documentation for these command-line arguments.\n\ |
209 | \n\ | |
210 | Initialization options:\n\ | |
211 | \n\ | |
6b61353c | 212 | --batch do not do interactive display; implies -q\n\ |
f63d0028 | 213 | --chdir DIR change to directory DIR\n\ |
598898a7 | 214 | --daemon start a server in the background\n\ |
6b61353c KH |
215 | --debug-init enable Emacs Lisp debugger for init file\n\ |
216 | --display, -d DISPLAY use X server DISPLAY\n\ | |
6b61353c KH |
217 | --no-desktop do not load a saved desktop\n\ |
218 | --no-init-file, -q load neither ~/.emacs nor default.el\n\ | |
219 | --no-shared-memory, -nl do not use shared memory\n\ | |
220 | --no-site-file do not load site-start.el\n\ | |
66b7b0fe | 221 | --no-site-lisp, -nsl do not add site-lisp directories to load-path\n\ |
6b61353c | 222 | --no-splash do not display a splash screen on startup\n\ |
2ff86b4e | 223 | --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\ |
66b7b0fe GM |
224 | --quick, -Q equivalent to:\n\ |
225 | -q --no-site-file --no-site-lisp --no-splash\n\ | |
6b61353c KH |
226 | --script FILE run FILE as an Emacs Lisp script\n\ |
227 | --terminal, -t DEVICE use DEVICE for terminal I/O\n\ | |
6b61353c KH |
228 | --user, -u USER load ~USER/.emacs instead of your own\n\ |
229 | \n%s" | |
230 | ||
231 | #define USAGE2 "\ | |
bd4590ba GM |
232 | Action options:\n\ |
233 | \n\ | |
6b61353c | 234 | FILE visit FILE using find-file\n\ |
9020b223 GM |
235 | +LINE go to line LINE in next FILE\n\ |
236 | +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\ | |
6b61353c KH |
237 | --directory, -L DIR add DIR to variable load-path\n\ |
238 | --eval EXPR evaluate Emacs Lisp expression EXPR\n\ | |
239 | --execute EXPR evaluate Emacs Lisp expression EXPR\n\ | |
240 | --file FILE visit FILE using find-file\n\ | |
241 | --find-file FILE visit FILE using find-file\n\ | |
242 | --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\ | |
243 | --insert FILE insert contents of FILE into current buffer\n\ | |
244 | --kill exit without asking for confirmation\n\ | |
245 | --load, -l FILE load Emacs Lisp FILE using the load function\n\ | |
246 | --visit FILE visit FILE using find-file\n\ | |
73ebcd25 AI |
247 | \n" |
248 | ||
6b61353c | 249 | #define USAGE3 "\ |
5b2ca26b | 250 | Display options:\n\ |
bd4590ba | 251 | \n\ |
6b61353c | 252 | --background-color, -bg COLOR window background color\n\ |
2ff86b4e NR |
253 | --basic-display, -D disable many display features;\n\ |
254 | used for debugging Emacs\n\ | |
6b61353c KH |
255 | --border-color, -bd COLOR main border color\n\ |
256 | --border-width, -bw WIDTH width of main border\n\ | |
ced74849 | 257 | --color, --color=MODE override color mode for character terminals;\n\ |
62973b41 JB |
258 | MODE defaults to `auto', and\n\ |
259 | can also be `never', `always',\n\ | |
6b61353c KH |
260 | or a mode name like `ansi8'\n\ |
261 | --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\ | |
262 | --font, -fn FONT default font; must be fixed-width\n\ | |
263 | --foreground-color, -fg COLOR window foreground color\n\ | |
264 | --fullheight, -fh make the first frame high as the screen\n\ | |
62973b41 | 265 | --fullscreen, -fs make the first frame fullscreen\n\ |
6b61353c | 266 | --fullwidth, -fw make the first frame wide as the screen\n\ |
3f1c6666 | 267 | --maximized, -mm make the first frame maximized\n\ |
6b61353c | 268 | --geometry, -g GEOMETRY window geometry\n\ |
f9e36a6d | 269 | --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\ |
6b61353c KH |
270 | --iconic start Emacs in iconified state\n\ |
271 | --internal-border, -ib WIDTH width between text and main border\n\ | |
272 | --line-spacing, -lsp PIXELS additional space to put between lines\n\ | |
273 | --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\ | |
274 | --name NAME title for initial Emacs frame\n\ | |
49ca717b | 275 | --no-blinking-cursor, -nbc disable blinking cursor\n\ |
6b61353c KH |
276 | --reverse-video, -r, -rv switch foreground and background\n\ |
277 | --title, -T TITLE title for initial Emacs frame\n\ | |
278 | --vertical-scroll-bars, -vb enable vertical scroll bars\n\ | |
279 | --xrm XRESOURCES set additional X resources\n\ | |
1540a61a | 280 | --parent-id XID set parent window\n\ |
6b61353c KH |
281 | --help display this help and exit\n\ |
282 | --version output version information and exit\n\ | |
07beadff JR |
283 | \n" |
284 | ||
285 | #define USAGE4 "\ | |
bd4590ba GM |
286 | You can generally also specify long option names with a single -; for\n\ |
287 | example, -batch as well as --batch. You can use any unambiguous\n\ | |
288 | abbreviation for a --option.\n\ | |
289 | \n\ | |
290 | Various environment variables and window system resources also affect\n\ | |
291 | Emacs' operation. See the main documentation.\n\ | |
07beadff | 292 | \n\ |
17284745 | 293 | Report bugs to bug-gnu-emacs@gnu.org. First, please see the Bugs\n\ |
bd4590ba GM |
294 | section of the Emacs manual or the file BUGS.\n" |
295 | ||
f927c5ae | 296 | \f |
7db35a48 | 297 | /* Signal code for the fatal signal that was received. */ |
35f08c38 | 298 | static int fatal_error_code; |
f927c5ae | 299 | |
7db35a48 | 300 | /* Nonzero if handling a fatal error already. */ |
f927c5ae JB |
301 | int fatal_error_in_progress; |
302 | ||
7db35a48 | 303 | /* If non-null, call this function from fatal_error_signal before |
4fab758d GM |
304 | committing suicide. */ |
305 | ||
35f08c38 | 306 | static void (*fatal_error_signal_hook) (void); |
4fab758d | 307 | |
3e9de9f6 | 308 | #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD |
9e2a2647 DN |
309 | /* When compiled with GTK and running under Gnome, |
310 | multiple threads may be created. Keep track of our main | |
3e9de9f6 | 311 | thread to make sure signals are delivered to it (see syssignal.h). */ |
333f1b6f JD |
312 | |
313 | pthread_t main_thread; | |
314 | #endif | |
315 | ||
4fab758d | 316 | |
7db35a48 | 317 | /* Handle bus errors, invalid instruction, etc. */ |
35f08c38 PE |
318 | #ifndef FLOAT_CATCH_SIGILL |
319 | static | |
320 | #endif | |
9af30bdf | 321 | void |
dd4c5104 | 322 | fatal_error_signal (int sig) |
f927c5ae | 323 | { |
333f1b6f | 324 | SIGNAL_THREAD_CHECK (sig); |
f927c5ae JB |
325 | fatal_error_code = sig; |
326 | signal (sig, SIG_DFL); | |
327 | ||
061b7f94 RS |
328 | TOTALLY_UNBLOCK_INPUT; |
329 | ||
f927c5ae | 330 | /* If fatal error occurs in code below, avoid infinite recursion. */ |
8090eb09 JB |
331 | if (! fatal_error_in_progress) |
332 | { | |
333 | fatal_error_in_progress = 1; | |
f927c5ae | 334 | |
9c524fcb | 335 | if (sig == SIGTERM || sig == SIGHUP || sig == SIGINT) |
f63d0028 JD |
336 | Fkill_emacs (make_number (sig)); |
337 | ||
f7ab4e3d | 338 | shut_down_emacs (sig, 0, Qnil); |
8090eb09 | 339 | } |
f927c5ae | 340 | |
8090eb09 JB |
341 | /* Signal the same code; this time it will really be fatal. |
342 | Remember that since we're in a signal handler, the signal we're | |
343 | going to send is probably blocked, so we have to unblock it if we | |
344 | want to really receive it. */ | |
29b89fe0 | 345 | #ifndef MSDOS |
a90538cb | 346 | sigunblock (sigmask (fatal_error_code)); |
29b89fe0 | 347 | #endif |
4fab758d GM |
348 | |
349 | if (fatal_error_signal_hook) | |
350 | fatal_error_signal_hook (); | |
7db35a48 | 351 | |
f927c5ae | 352 | kill (getpid (), fatal_error_code); |
f927c5ae | 353 | } |
271c7b7c RS |
354 | |
355 | #ifdef SIGDANGER | |
356 | ||
16c323ee | 357 | /* Handler for SIGDANGER. */ |
9af30bdf | 358 | void |
1dae0f0a | 359 | memory_warning_signal (int sig) |
271c7b7c RS |
360 | { |
361 | signal (sig, memory_warning_signal); | |
333f1b6f | 362 | SIGNAL_THREAD_CHECK (sig); |
271c7b7c RS |
363 | |
364 | malloc_warning ("Operating system warns that virtual memory is running low.\n"); | |
55796183 RS |
365 | |
366 | /* It might be unsafe to call do_auto_save now. */ | |
367 | force_auto_save_soon (); | |
271c7b7c RS |
368 | } |
369 | #endif | |
fcf01ad3 RS |
370 | |
371 | /* We define abort, rather than using it from the library, | |
c9fe9cce | 372 | so that GDB can return from a breakpoint here. |
7db35a48 | 373 | MSDOS has its own definition in msdos.c. */ |
fcf01ad3 | 374 | |
37e2fdd2 | 375 | #if ! defined (DOS_NT) && ! defined (NO_ABORT) |
ca9c0567 | 376 | |
4624371d | 377 | void |
d5a3eaaf | 378 | abort (void) |
fcf01ad3 RS |
379 | { |
380 | kill (getpid (), SIGABRT); | |
37e2fdd2 RS |
381 | /* This shouldn't be executed, but it prevents a warning. */ |
382 | exit (1); | |
fcf01ad3 | 383 | } |
c9fe9cce | 384 | #endif |
fcf01ad3 | 385 | |
f927c5ae | 386 | \f |
7db35a48 | 387 | /* Code for dealing with Lisp access to the Unix command line. */ |
f927c5ae | 388 | |
dfcf069d | 389 | static void |
dd4c5104 | 390 | init_cmdargs (int argc, char **argv, int skip_args) |
f927c5ae JB |
391 | { |
392 | register int i; | |
74f10ca7 | 393 | Lisp_Object name, dir, handler; |
aed13378 | 394 | int count = SPECPDL_INDEX (); |
213d0b1f | 395 | Lisp_Object raw_name; |
f927c5ae | 396 | |
e29f86e4 RS |
397 | initial_argv = argv; |
398 | initial_argc = argc; | |
399 | ||
213d0b1f RS |
400 | raw_name = build_string (argv[0]); |
401 | ||
402 | /* Add /: to the front of the name | |
403 | if it would otherwise be treated as magic. */ | |
74f10ca7 PE |
404 | handler = Ffind_file_name_handler (raw_name, Qt); |
405 | if (! NILP (handler)) | |
213d0b1f RS |
406 | raw_name = concat2 (build_string ("/:"), raw_name); |
407 | ||
408 | Vinvocation_name = Ffile_name_nondirectory (raw_name); | |
409 | Vinvocation_directory = Ffile_name_directory (raw_name); | |
410 | ||
ace40a69 RS |
411 | /* If we got no directory in argv[0], search PATH to find where |
412 | Emacs actually came from. */ | |
413 | if (NILP (Vinvocation_directory)) | |
414 | { | |
415 | Lisp_Object found; | |
416 | int yes = openp (Vexec_path, Vinvocation_name, | |
10c0915e | 417 | Vexec_suffixes, &found, make_number (X_OK)); |
e443f843 | 418 | if (yes == 1) |
213d0b1f RS |
419 | { |
420 | /* Add /: to the front of the name | |
421 | if it would otherwise be treated as magic. */ | |
74f10ca7 PE |
422 | handler = Ffind_file_name_handler (found, Qt); |
423 | if (! NILP (handler)) | |
213d0b1f RS |
424 | found = concat2 (build_string ("/:"), found); |
425 | Vinvocation_directory = Ffile_name_directory (found); | |
426 | } | |
ace40a69 | 427 | } |
59653951 | 428 | |
4133b300 RS |
429 | if (!NILP (Vinvocation_directory) |
430 | && NILP (Ffile_name_absolute_p (Vinvocation_directory))) | |
213d0b1f RS |
431 | /* Emacs was started with relative path, like ./emacs. |
432 | Make it absolute. */ | |
4133b300 RS |
433 | Vinvocation_directory = Fexpand_file_name (Vinvocation_directory, Qnil); |
434 | ||
07f4d123 RS |
435 | Vinstallation_directory = Qnil; |
436 | ||
437 | if (!NILP (Vinvocation_directory)) | |
438 | { | |
439 | dir = Vinvocation_directory; | |
440 | name = Fexpand_file_name (Vinvocation_name, dir); | |
441 | while (1) | |
442 | { | |
f5ab9736 | 443 | Lisp_Object tem, lib_src_exists; |
07f4d123 RS |
444 | Lisp_Object etc_exists, info_exists; |
445 | ||
f5ab9736 RS |
446 | /* See if dir contains subdirs for use by Emacs. |
447 | Check for the ones that would exist in a build directory, | |
448 | not including lisp and info. */ | |
449 | tem = Fexpand_file_name (build_string ("lib-src"), dir); | |
450 | lib_src_exists = Ffile_exists_p (tem); | |
de004cc6 | 451 | |
70344b34 | 452 | #ifdef MSDOS |
de004cc6 RS |
453 | /* MSDOS installations frequently remove lib-src, but we still |
454 | must set installation-directory, or else info won't find | |
455 | its files (it uses the value of installation-directory). */ | |
456 | tem = Fexpand_file_name (build_string ("info"), dir); | |
457 | info_exists = Ffile_exists_p (tem); | |
70344b34 EZ |
458 | #else |
459 | info_exists = Qnil; | |
460 | #endif | |
de004cc6 RS |
461 | |
462 | if (!NILP (lib_src_exists) || !NILP (info_exists)) | |
07f4d123 | 463 | { |
f5ab9736 RS |
464 | tem = Fexpand_file_name (build_string ("etc"), dir); |
465 | etc_exists = Ffile_exists_p (tem); | |
466 | if (!NILP (etc_exists)) | |
07f4d123 | 467 | { |
f5ab9736 RS |
468 | Vinstallation_directory |
469 | = Ffile_name_as_directory (dir); | |
470 | break; | |
07f4d123 RS |
471 | } |
472 | } | |
473 | ||
474 | /* See if dir's parent contains those subdirs. */ | |
f5ab9736 RS |
475 | tem = Fexpand_file_name (build_string ("../lib-src"), dir); |
476 | lib_src_exists = Ffile_exists_p (tem); | |
de004cc6 | 477 | |
70344b34 EZ |
478 | |
479 | #ifdef MSDOS | |
480 | /* See the MSDOS commentary above. */ | |
de004cc6 RS |
481 | tem = Fexpand_file_name (build_string ("../info"), dir); |
482 | info_exists = Ffile_exists_p (tem); | |
70344b34 EZ |
483 | #else |
484 | info_exists = Qnil; | |
485 | #endif | |
de004cc6 RS |
486 | |
487 | if (!NILP (lib_src_exists) || !NILP (info_exists)) | |
07f4d123 | 488 | { |
f5ab9736 RS |
489 | tem = Fexpand_file_name (build_string ("../etc"), dir); |
490 | etc_exists = Ffile_exists_p (tem); | |
491 | if (!NILP (etc_exists)) | |
07f4d123 | 492 | { |
f5ab9736 RS |
493 | tem = Fexpand_file_name (build_string (".."), dir); |
494 | Vinstallation_directory | |
495 | = Ffile_name_as_directory (tem); | |
496 | break; | |
07f4d123 RS |
497 | } |
498 | } | |
499 | ||
500 | /* If the Emacs executable is actually a link, | |
501 | next try the dir that the link points into. */ | |
502 | tem = Ffile_symlink_p (name); | |
503 | if (!NILP (tem)) | |
504 | { | |
260ec24d | 505 | name = Fexpand_file_name (tem, dir); |
07f4d123 RS |
506 | dir = Ffile_name_directory (name); |
507 | } | |
508 | else | |
509 | break; | |
510 | } | |
511 | } | |
512 | ||
f927c5ae JB |
513 | Vcommand_line_args = Qnil; |
514 | ||
515 | for (i = argc - 1; i >= 0; i--) | |
516 | { | |
517 | if (i == 0 || i > skip_args) | |
a520393d KH |
518 | /* For the moment, we keep arguments as is in unibyte strings. |
519 | They are decoded in the function command-line after we know | |
520 | locale-coding-system. */ | |
f927c5ae | 521 | Vcommand_line_args |
68db37aa | 522 | = Fcons (make_unibyte_string (argv[i], strlen (argv[i])), |
a520393d | 523 | Vcommand_line_args); |
f927c5ae | 524 | } |
213d0b1f RS |
525 | |
526 | unbind_to (count, Qnil); | |
f927c5ae | 527 | } |
59653951 JB |
528 | |
529 | DEFUN ("invocation-name", Finvocation_name, Sinvocation_name, 0, 0, 0, | |
7db35a48 PJ |
530 | doc: /* Return the program name that was used to run Emacs. |
531 | Any directory names are omitted. */) | |
5842a27b | 532 | (void) |
59653951 JB |
533 | { |
534 | return Fcopy_sequence (Vinvocation_name); | |
535 | } | |
536 | ||
ace40a69 | 537 | DEFUN ("invocation-directory", Finvocation_directory, Sinvocation_directory, |
7db35a48 PJ |
538 | 0, 0, 0, |
539 | doc: /* Return the directory name in which the Emacs executable was located. */) | |
5842a27b | 540 | (void) |
ace40a69 RS |
541 | { |
542 | return Fcopy_sequence (Vinvocation_directory); | |
543 | } | |
544 | ||
f927c5ae | 545 | \f |
0269dedb RS |
546 | #ifdef HAVE_TZSET |
547 | /* A valid but unlikely value for the TZ environment value. | |
548 | It is OK (though a bit slower) if the user actually chooses this value. */ | |
549 | static char dump_tz[] = "UtC0"; | |
550 | #endif | |
551 | ||
a90538cb | 552 | #ifndef ORDINARY_LINK |
efd241cc RS |
553 | /* We don't include crtbegin.o and crtend.o in the link, |
554 | so these functions and variables might be missed. | |
555 | Provide dummy definitions to avoid error. | |
556 | (We don't have any real constructors or destructors.) */ | |
557 | #ifdef __GNUC__ | |
244fc23d PE |
558 | |
559 | /* Define a dummy function F. Declare F too, to pacify gcc | |
560 | -Wmissing-prototypes. */ | |
35f08c38 PE |
561 | #define DEFINE_DUMMY_FUNCTION(f) \ |
562 | void f (void) EXTERNALLY_VISIBLE; void f (void) {} | |
244fc23d | 563 | |
46e65b73 | 564 | #ifndef GCC_CTORS_IN_LIBC |
244fc23d PE |
565 | DEFINE_DUMMY_FUNCTION (__do_global_ctors) |
566 | DEFINE_DUMMY_FUNCTION (__do_global_ctors_aux) | |
567 | DEFINE_DUMMY_FUNCTION (__do_global_dtors) | |
554061d8 | 568 | /* GNU/Linux has a bug in its library; avoid an error. */ |
8a2a6032 | 569 | #ifndef GNU_LINUX |
35f08c38 | 570 | char * __CTOR_LIST__[2] EXTERNALLY_VISIBLE = { (char *) (-1), 0 }; |
64c1864a | 571 | #endif |
35f08c38 | 572 | char * __DTOR_LIST__[2] EXTERNALLY_VISIBLE = { (char *) (-1), 0 }; |
46e65b73 | 573 | #endif /* GCC_CTORS_IN_LIBC */ |
244fc23d | 574 | DEFINE_DUMMY_FUNCTION (__main) |
efd241cc | 575 | #endif /* __GNUC__ */ |
a90538cb | 576 | #endif /* ORDINARY_LINK */ |
efd241cc | 577 | |
e2925360 KH |
578 | /* Test whether the next argument in ARGV matches SSTR or a prefix of |
579 | LSTR (at least MINLEN characters). If so, then if VALPTR is non-null | |
580 | (the argument is supposed to have a value) store in *VALPTR either | |
581 | the next argument or the portion of this one after the equal sign. | |
582 | ARGV is read starting at position *SKIPPTR; this index is advanced | |
583 | by the number of arguments used. | |
584 | ||
585 | Too bad we can't just use getopt for all of this, but we don't have | |
586 | enough information to do it right. */ | |
081bef73 | 587 | |
e2925360 | 588 | static int |
62973b41 JB |
589 | argmatch (char **argv, int argc, const char *sstr, const char *lstr, |
590 | int minlen, char **valptr, int *skipptr) | |
e2925360 | 591 | { |
6bbd7a29 | 592 | char *p = NULL; |
0b963a93 | 593 | ptrdiff_t arglen; |
df6530f8 RS |
594 | char *arg; |
595 | ||
596 | /* Don't access argv[argc]; give up in advance. */ | |
597 | if (argc <= *skipptr + 1) | |
598 | return 0; | |
599 | ||
600 | arg = argv[*skipptr+1]; | |
e2925360 KH |
601 | if (arg == NULL) |
602 | return 0; | |
603 | if (strcmp (arg, sstr) == 0) | |
604 | { | |
605 | if (valptr != NULL) | |
606 | { | |
607 | *valptr = argv[*skipptr+2]; | |
608 | *skipptr += 2; | |
609 | } | |
610 | else | |
611 | *skipptr += 1; | |
612 | return 1; | |
613 | } | |
8966b757 | 614 | arglen = (valptr != NULL && (p = strchr (arg, '=')) != NULL |
e2925360 | 615 | ? p - arg : strlen (arg)); |
c03e1113 | 616 | if (lstr == 0 || arglen < minlen || strncmp (arg, lstr, arglen) != 0) |
e2925360 KH |
617 | return 0; |
618 | else if (valptr == NULL) | |
619 | { | |
620 | *skipptr += 1; | |
621 | return 1; | |
622 | } | |
623 | else if (p != NULL) | |
624 | { | |
625 | *valptr = p+1; | |
626 | *skipptr += 1; | |
627 | return 1; | |
628 | } | |
629 | else if (argv[*skipptr+2] != NULL) | |
630 | { | |
631 | *valptr = argv[*skipptr+2]; | |
632 | *skipptr += 2; | |
633 | return 1; | |
634 | } | |
635 | else | |
636 | { | |
637 | return 0; | |
638 | } | |
639 | } | |
640 | ||
b6779252 | 641 | #ifdef DOUG_LEA_MALLOC |
f927c5ae | 642 | |
b6779252 KH |
643 | /* malloc can be invoked even before main (e.g. by the dynamic |
644 | linker), so the dumped malloc state must be restored as early as | |
645 | possible using this special hook. */ | |
646 | ||
647 | static void | |
dd4c5104 | 648 | malloc_initialize_hook (void) |
b6779252 | 649 | { |
1f9c3929 | 650 | #ifndef USE_CRT_DLL |
b6779252 | 651 | extern char **environ; |
1f9c3929 | 652 | #endif |
6000fe37 | 653 | |
15aaf1b5 RS |
654 | if (initialized) |
655 | { | |
7c9cd446 AS |
656 | if (!malloc_using_checking) |
657 | /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be | |
658 | ignored if the heap to be restored was constructed without | |
d942e12a AS |
659 | malloc checking. Can't use unsetenv, since that calls malloc. */ |
660 | { | |
661 | char **p; | |
662 | ||
a57c4026 | 663 | for (p = environ; p && *p; p++) |
d942e12a AS |
664 | if (strncmp (*p, "MALLOC_CHECK_=", 14) == 0) |
665 | { | |
666 | do | |
667 | *p = p[1]; | |
668 | while (*++p); | |
669 | break; | |
670 | } | |
671 | } | |
b6779252 | 672 | |
15aaf1b5 | 673 | malloc_set_state (malloc_state_ptr); |
68db37aa | 674 | #ifndef XMALLOC_OVERRUN_CHECK |
15aaf1b5 | 675 | free (malloc_state_ptr); |
68db37aa | 676 | #endif |
15aaf1b5 | 677 | } |
7c9cd446 | 678 | else |
dede2792 JD |
679 | { |
680 | if (my_heap_start == 0) | |
681 | my_heap_start = sbrk (0); | |
682 | malloc_using_checking = getenv ("MALLOC_CHECK_") != NULL; | |
683 | } | |
b6779252 KH |
684 | } |
685 | ||
698d32e2 | 686 | void (*__malloc_initialize_hook) (void) EXTERNALLY_VISIBLE = malloc_initialize_hook; |
b6779252 KH |
687 | |
688 | #endif /* DOUG_LEA_MALLOC */ | |
689 | ||
d883731c | 690 | |
b6779252 KH |
691 | /* ARGSUSED */ |
692 | int | |
7c2fb837 | 693 | main (int argc, char **argv) |
b6779252 | 694 | { |
2313132f | 695 | #if GC_MARK_STACK |
39ec21ea GM |
696 | Lisp_Object dummy; |
697 | #endif | |
b6779252 | 698 | char stack_bottom_variable; |
68c45bf0 | 699 | int do_initial_setlocale; |
b6779252 | 700 | int skip_args = 0; |
b6779252 KH |
701 | #ifdef HAVE_SETRLIMIT |
702 | struct rlimit rlim; | |
703 | #endif | |
704 | int no_loadup = 0; | |
6e910e07 | 705 | char *junk = 0; |
4ff029f6 | 706 | char *dname_arg = 0; |
b3243e6f AR |
707 | #ifdef NS_IMPL_COCOA |
708 | char dname_arg2[80]; | |
709 | #endif | |
f63d0028 | 710 | char *ch_to_dir; |
b6779252 | 711 | |
2313132f | 712 | #if GC_MARK_STACK |
39ec21ea GM |
713 | stack_base = &dummy; |
714 | #endif | |
715 | ||
a4ef73c8 CY |
716 | #if defined (USE_GTK) && defined (G_SLICE_ALWAYS_MALLOC) |
717 | /* This is used by the Cygwin build. */ | |
718 | setenv ("G_SLICE", "always-malloc", 1); | |
719 | #endif | |
720 | ||
b312a492 | 721 | #ifdef GNU_LINUX |
dede2792 JD |
722 | if (!initialized) |
723 | { | |
724 | extern char my_endbss[]; | |
725 | extern char *my_endbss_static; | |
726 | ||
727 | if (my_heap_start == 0) | |
728 | my_heap_start = sbrk (0); | |
729 | ||
730 | heap_bss_diff = (char *)my_heap_start - max (my_endbss, my_endbss_static); | |
731 | } | |
b312a492 | 732 | #endif |
dede2792 | 733 | |
d785cf9e RS |
734 | #ifdef RUN_TIME_REMAP |
735 | if (initialized) | |
736 | run_time_remap (argv[0]); | |
737 | #endif | |
738 | ||
14145fa3 AR |
739 | /* If using unexmacosx.c (set by s/darwin.h), we must do this. */ |
740 | #ifdef DARWIN_OS | |
e0f712ba AC |
741 | if (!initialized) |
742 | unexec_init_emacs_zone (); | |
743 | #endif | |
744 | ||
081bef73 | 745 | sort_args (argc, argv); |
956e3c7e RS |
746 | argc = 0; |
747 | while (argv[argc]) argc++; | |
081bef73 | 748 | |
8c5ff6dd | 749 | if (argmatch (argv, argc, "-version", "--version", 3, NULL, &skip_args)) |
1702afef | 750 | { |
8c5ff6dd KR |
751 | const char *version, *copyright; |
752 | if (initialized) | |
5cf9ca93 | 753 | { |
8c5ff6dd KR |
754 | Lisp_Object tem, tem2; |
755 | tem = Fsymbol_value (intern_c_string ("emacs-version")); | |
756 | tem2 = Fsymbol_value (intern_c_string ("emacs-copyright")); | |
757 | if (!STRINGP (tem)) | |
758 | { | |
759 | fprintf (stderr, "Invalid value of `emacs-version'\n"); | |
760 | exit (1); | |
761 | } | |
762 | if (!STRINGP (tem2)) | |
763 | { | |
764 | fprintf (stderr, "Invalid value of `emacs-copyright'\n"); | |
765 | exit (1); | |
766 | } | |
767 | else | |
768 | { | |
42a5b22f PE |
769 | version = SSDATA (tem); |
770 | copyright = SSDATA (tem2); | |
8c5ff6dd | 771 | } |
5cf9ca93 | 772 | } |
1702afef RS |
773 | else |
774 | { | |
8c5ff6dd KR |
775 | version = emacs_version; |
776 | copyright = emacs_copyright; | |
1702afef | 777 | } |
8c5ff6dd KR |
778 | printf ("GNU Emacs %s\n", version); |
779 | printf ("%s\n", copyright); | |
780 | printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n"); | |
781 | printf ("You may redistribute copies of Emacs\n"); | |
782 | printf ("under the terms of the GNU General Public License.\n"); | |
783 | printf ("For more information about these matters, "); | |
784 | printf ("see the file named COPYING.\n"); | |
785 | exit (0); | |
1702afef | 786 | } |
947f5e01 JM |
787 | |
788 | if (argmatch (argv, argc, "-chdir", "--chdir", 4, &ch_to_dir, &skip_args)) | |
789 | if (chdir (ch_to_dir) == -1) | |
790 | { | |
791 | fprintf (stderr, "%s: Can't chdir to %s: %s\n", | |
792 | argv[0], ch_to_dir, strerror (errno)); | |
793 | exit (1); | |
794 | } | |
f63d0028 | 795 | |
1702afef | 796 | |
dede2792 | 797 | #ifdef HAVE_PERSONALITY_LINUX32 |
dede2792 JD |
798 | if (!initialized |
799 | && (strcmp (argv[argc-1], "dump") == 0 | |
800 | || strcmp (argv[argc-1], "bootstrap") == 0) | |
fd75ddb2 | 801 | && ! getenv ("EMACS_HEAP_EXEC")) |
dede2792 | 802 | { |
42ca4633 | 803 | static char heapexec[] = "EMACS_HEAP_EXEC=true"; |
fd75ddb2 | 804 | /* Set this so we only do this once. */ |
42ca4633 | 805 | putenv(heapexec); |
711877f3 | 806 | |
fd75ddb2 JD |
807 | /* A flag to turn off address randomization which is introduced |
808 | in linux kernel shipped with fedora core 4 */ | |
711877f3 | 809 | #define ADD_NO_RANDOMIZE 0x0040000 |
fd75ddb2 | 810 | personality (PER_LINUX32 | ADD_NO_RANDOMIZE); |
711877f3 MY |
811 | #undef ADD_NO_RANDOMIZE |
812 | ||
fd75ddb2 | 813 | execvp (argv[0], argv); |
dede2792 | 814 | |
fd75ddb2 JD |
815 | /* If the exec fails, try to dump anyway. */ |
816 | perror ("execvp"); | |
dede2792 JD |
817 | } |
818 | #endif /* HAVE_PERSONALITY_LINUX32 */ | |
819 | ||
ea2acec5 | 820 | #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK) |
6c2935e9 RS |
821 | /* Extend the stack space available. |
822 | Don't do that if dumping, since some systems (e.g. DJGPP) | |
823 | might define a smaller stack limit at that time. */ | |
824 | if (1 | |
825 | #ifndef CANNOT_DUMP | |
826 | && (!noninteractive || initialized) | |
827 | #endif | |
828 | && !getrlimit (RLIMIT_STACK, &rlim)) | |
53c58b5d | 829 | { |
509a8fcd | 830 | long newlim; |
fa8459a3 | 831 | extern size_t re_max_failures; |
03effc23 KH |
832 | /* Approximate the amount regex.c needs per unit of re_max_failures. */ |
833 | int ratio = 20 * sizeof (char *); | |
834 | /* Then add 33% to cover the size of the smaller stacks that regex.c | |
835 | successively allocates and discards, on its way to the maximum. */ | |
836 | ratio += ratio / 3; | |
837 | /* Add in some extra to cover | |
838 | what we're likely to use for other reasons. */ | |
839 | newlim = re_max_failures * ratio + 200000; | |
d0381a7f RS |
840 | #ifdef __NetBSD__ |
841 | /* NetBSD (at least NetBSD 1.2G and former) has a bug in its | |
842 | stack allocation routine for new process that the allocation | |
843 | fails if stack limit is not on page boundary. So, round up the | |
844 | new limit to page boundary. */ | |
845 | newlim = (newlim + getpagesize () - 1) / getpagesize () * getpagesize(); | |
846 | #endif | |
509a8fcd | 847 | if (newlim > rlim.rlim_max) |
6c2935e9 RS |
848 | { |
849 | newlim = rlim.rlim_max; | |
03effc23 KH |
850 | /* Don't let regex.c overflow the stack we have. */ |
851 | re_max_failures = (newlim - 200000) / ratio; | |
6c2935e9 | 852 | } |
509a8fcd RS |
853 | if (rlim.rlim_cur < newlim) |
854 | rlim.rlim_cur = newlim; | |
855 | ||
53c58b5d RS |
856 | setrlimit (RLIMIT_STACK, &rlim); |
857 | } | |
ea2acec5 | 858 | #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */ |
53c58b5d | 859 | |
f927c5ae JB |
860 | /* Record (approximately) where the stack begins. */ |
861 | stack_bottom = &stack_bottom_variable; | |
862 | ||
f927c5ae | 863 | clearerr (stdin); |
9ae8f997 | 864 | |
f927c5ae | 865 | #ifndef SYSTEM_MALLOC |
bf7f4e90 RS |
866 | /* Arrange to get warning messages as memory fills up. */ |
867 | memory_warnings (0, malloc_warning); | |
9ac0d9e0 | 868 | |
f5a3c8c4 AI |
869 | /* Call malloc at least once, to run the initial __malloc_hook. |
870 | Also call realloc and free for consistency. */ | |
871 | free (realloc (malloc (4), 4)); | |
bf7f4e90 | 872 | |
06ca62eb | 873 | # ifndef SYNC_INPUT |
bf7f4e90 RS |
874 | /* Arrange to disable interrupt input inside malloc etc. */ |
875 | uninterrupt_malloc (); | |
06ca62eb | 876 | # endif /* not SYNC_INPUT */ |
f927c5ae JB |
877 | #endif /* not SYSTEM_MALLOC */ |
878 | ||
3e9de9f6 | 879 | #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD |
333f1b6f | 880 | main_thread = pthread_self (); |
3e9de9f6 | 881 | #endif /* FORWARD_SIGNAL_TO_MAIN_THREAD */ |
333f1b6f | 882 | |
edd3ff1d | 883 | #if defined (MSDOS) || defined (WINDOWSNT) |
29b89fe0 RS |
884 | /* We do all file input/output as binary files. When we need to translate |
885 | newlines, we do that manually. */ | |
886 | _fmode = O_BINARY; | |
edd3ff1d | 887 | #endif /* MSDOS || WINDOWSNT */ |
18198bb2 | 888 | |
edd3ff1d | 889 | #ifdef MSDOS |
18198bb2 RS |
890 | if (!isatty (fileno (stdin))) |
891 | setmode (fileno (stdin), O_BINARY); | |
892 | if (!isatty (fileno (stdout))) | |
893 | { | |
894 | fflush (stdout); | |
895 | setmode (fileno (stdout), O_BINARY); | |
896 | } | |
29b89fe0 RS |
897 | #endif /* MSDOS */ |
898 | ||
68c45bf0 PE |
899 | /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case. |
900 | The build procedure uses this while dumping, to ensure that the | |
901 | dumped Emacs does not have its system locale tables initialized, | |
902 | as that might cause screwups when the dumped Emacs starts up. */ | |
903 | { | |
904 | char *lc_all = getenv ("LC_ALL"); | |
905 | do_initial_setlocale = ! lc_all || strcmp (lc_all, "C"); | |
906 | } | |
907 | ||
908 | /* Set locale now, so that initial error messages are localized properly. | |
909 | fixup_locale must wait until later, since it builds strings. */ | |
910 | if (do_initial_setlocale) | |
911 | setlocale (LC_ALL, ""); | |
912 | ||
f927c5ae JB |
913 | inhibit_window_system = 0; |
914 | ||
7db35a48 | 915 | /* Handle the -t switch, which specifies filename to use as terminal. */ |
956e3c7e RS |
916 | while (1) |
917 | { | |
918 | char *term; | |
919 | if (argmatch (argv, argc, "-t", "--terminal", 4, &term, &skip_args)) | |
920 | { | |
921 | int result; | |
68c45bf0 PE |
922 | emacs_close (0); |
923 | emacs_close (1); | |
924 | result = emacs_open (term, O_RDWR, 0); | |
9055082e | 925 | if (result < 0 || dup (0) < 0) |
956e3c7e RS |
926 | { |
927 | char *errstring = strerror (errno); | |
186486eb | 928 | fprintf (stderr, "%s: %s: %s\n", argv[0], term, errstring); |
956e3c7e RS |
929 | exit (1); |
930 | } | |
956e3c7e RS |
931 | if (! isatty (0)) |
932 | { | |
186486eb | 933 | fprintf (stderr, "%s: %s: not a tty\n", argv[0], term); |
956e3c7e RS |
934 | exit (1); |
935 | } | |
936 | fprintf (stderr, "Using %s\n", term); | |
8ba50e1a | 937 | #ifdef HAVE_WINDOW_SYSTEM |
956e3c7e | 938 | inhibit_window_system = 1; /* -t => -nw */ |
f927c5ae | 939 | #endif |
956e3c7e RS |
940 | } |
941 | else | |
942 | break; | |
943 | } | |
944 | ||
400d6fa9 PJ |
945 | /* Command line option --no-windows is deprecated and thus not mentioned |
946 | in the manual and usage informations. */ | |
947 | if (argmatch (argv, argc, "-nw", "--no-window-system", 6, NULL, &skip_args) | |
948 | || argmatch (argv, argc, "-nw", "--no-windows", 6, NULL, &skip_args)) | |
e2925360 | 949 | inhibit_window_system = 1; |
f927c5ae | 950 | |
e2925360 | 951 | /* Handle the -batch switch, which means don't do interactive display. */ |
f927c5ae | 952 | noninteractive = 0; |
df6530f8 | 953 | if (argmatch (argv, argc, "-batch", "--batch", 5, NULL, &skip_args)) |
55f4edbc RS |
954 | { |
955 | noninteractive = 1; | |
956 | Vundo_outer_limit = Qnil; | |
957 | } | |
6e910e07 RS |
958 | if (argmatch (argv, argc, "-script", "--script", 3, &junk, &skip_args)) |
959 | { | |
960 | noninteractive = 1; /* Set batch mode. */ | |
21a4ff8e | 961 | /* Convert --script to -scriptload, un-skip it, and sort again |
e09b9180 | 962 | so that it will be handled in proper sequence. */ |
a09a5b5b | 963 | /* FIXME broken for --script=FILE - is that supposed to work? */ |
c03cd23f | 964 | argv[skip_args - 1] = (char *) "-scriptload"; |
6e910e07 RS |
965 | skip_args -= 2; |
966 | sort_args (argc, argv); | |
967 | } | |
e2925360 | 968 | |
7db35a48 | 969 | /* Handle the --help option, which gives a usage message. */ |
df6530f8 | 970 | if (argmatch (argv, argc, "-help", "--help", 3, NULL, &skip_args)) |
f927c5ae | 971 | { |
6b61353c KH |
972 | printf (USAGE1, argv[0], USAGE2); |
973 | printf (USAGE3); | |
17284745 | 974 | printf (USAGE4); |
e2925360 | 975 | exit (0); |
f927c5ae JB |
976 | } |
977 | ||
4ff029f6 DN |
978 | if (argmatch (argv, argc, "-daemon", "--daemon", 5, NULL, &skip_args) |
979 | || argmatch (argv, argc, "-daemon", "--daemon", 5, &dname_arg, &skip_args)) | |
eab2ee89 | 980 | { |
9d29095c | 981 | #ifndef DOS_NT |
5790ef40 DN |
982 | pid_t f; |
983 | ||
984 | /* Start as a daemon: fork a new child process which will run the | |
985 | rest of the initialization code, then exit. | |
986 | ||
fc012771 SM |
987 | Detaching a daemon requires the following steps: |
988 | - fork | |
989 | - setsid | |
990 | - exit the parent | |
991 | - close the tty file-descriptors | |
992 | ||
993 | We only want to do the last 2 steps once the daemon is ready to | |
994 | serve requests, i.e. after loading .emacs (initialization). | |
995 | OTOH initialization may start subprocesses (e.g. ispell) and these | |
996 | should be run from the proper process (the one that will end up | |
997 | running as daemon) and with the proper "session id" in order for | |
998 | them to keep working after detaching, so fork and setsid need to be | |
999 | performed before initialization. | |
1000 | ||
5790ef40 DN |
1001 | We want to avoid exiting before the server socket is ready, so |
1002 | use a pipe for synchronization. The parent waits for the child | |
1003 | to close its end of the pipe (using `daemon-initialized') | |
1004 | before exiting. */ | |
1005 | if (pipe (daemon_pipe) == -1) | |
1006 | { | |
1007 | fprintf (stderr, "Cannot pipe!\n"); | |
1008 | exit (1); | |
1009 | } | |
1010 | ||
b3243e6f | 1011 | #ifndef NS_IMPL_COCOA |
8b3115e7 DN |
1012 | #ifdef USE_GTK |
1013 | fprintf (stderr, "\nWarning: due to a long standing Gtk+ bug\nhttp://bugzilla.gnome.org/show_bug.cgi?id=85715\n\ | |
1014 | Emacs might crash when run in daemon mode and the X11 connection is unexpectedly lost.\n\ | |
1015 | Using an Emacs configured with --with-x-toolkit=lucid does not have this problem.\n"); | |
1016 | #endif | |
5790ef40 | 1017 | f = fork (); |
cfa6accb AR |
1018 | #else /* NS_IMPL_COCOA */ |
1019 | /* Under Cocoa we must do fork+exec as CoreFoundation lib fails in | |
1020 | forked process: http://developer.apple.com/ReleaseNotes/ | |
1021 | CoreFoundation/CoreFoundation.html) | |
b3243e6f AR |
1022 | We mark being in the exec'd process by a daemon name argument of |
1023 | form "--daemon=\nFD0,FD1\nNAME" where FD are the pipe file descriptors, | |
1024 | NAME is the original daemon name, if any. */ | |
1025 | if (!dname_arg || !strchr (dname_arg, '\n')) | |
1026 | f = fork (); /* in orig */ | |
1027 | else | |
1028 | f = 0; /* in exec'd */ | |
cfa6accb | 1029 | #endif /* NS_IMPL_COCOA */ |
eab2ee89 | 1030 | if (f > 0) |
5790ef40 DN |
1031 | { |
1032 | int retval; | |
1033 | char buf[1]; | |
1034 | ||
1035 | /* Close unused writing end of the pipe. */ | |
1036 | close (daemon_pipe[1]); | |
1037 | ||
1038 | /* Just wait for the child to close its end of the pipe. */ | |
1039 | do | |
1040 | { | |
1041 | retval = read (daemon_pipe[0], &buf, 1); | |
1042 | } | |
1043 | while (retval == -1 && errno == EINTR); | |
1044 | ||
1045 | if (retval < 0) | |
1046 | { | |
1047 | fprintf (stderr, "Error reading status from child\n"); | |
1048 | exit (1); | |
1049 | } | |
fd95644b DN |
1050 | else if (retval == 0) |
1051 | { | |
1052 | fprintf (stderr, "Error: server did not start correctly\n"); | |
1053 | exit (1); | |
1054 | } | |
5790ef40 DN |
1055 | |
1056 | close (daemon_pipe[0]); | |
1057 | exit (0); | |
1058 | } | |
eab2ee89 DN |
1059 | if (f < 0) |
1060 | { | |
1061 | fprintf (stderr, "Cannot fork!\n"); | |
9d0a6e42 | 1062 | exit (1); |
eab2ee89 DN |
1063 | } |
1064 | ||
b3243e6f AR |
1065 | #ifdef NS_IMPL_COCOA |
1066 | { | |
cfa6accb | 1067 | /* In orig process, forked as child, OR in exec'd. */ |
b3243e6f | 1068 | if (!dname_arg || !strchr (dname_arg, '\n')) |
cfa6accb | 1069 | { /* In orig, child: now exec w/special daemon name. */ |
b3243e6f | 1070 | char fdStr[80]; |
66c6fdd5 PE |
1071 | int fdStrlen = |
1072 | snprintf (fdStr, sizeof fdStr, | |
1073 | "--daemon=\n%d,%d\n%s", daemon_pipe[0], | |
1074 | daemon_pipe[1], dname_arg ? dname_arg : ""); | |
b3243e6f | 1075 | |
66c6fdd5 | 1076 | if (! (0 <= fdStrlen && fdStrlen < sizeof fdStr)) |
b3243e6f AR |
1077 | { |
1078 | fprintf (stderr, "daemon: child name too long\n"); | |
1079 | exit (1); | |
1080 | } | |
1081 | ||
b3243e6f AR |
1082 | argv[skip_args] = fdStr; |
1083 | ||
1084 | execv (argv[0], argv); | |
cff11156 | 1085 | fprintf (stderr, "emacs daemon: exec failed: %d\n", errno); |
b3243e6f AR |
1086 | exit (1); |
1087 | } | |
1088 | ||
cfa6accb | 1089 | /* In exec'd: parse special dname into pipe and name info. */ |
b3243e6f AR |
1090 | if (!dname_arg || !strchr (dname_arg, '\n') |
1091 | || strlen (dname_arg) < 1 || strlen (dname_arg) > 70) | |
1092 | { | |
1093 | fprintf (stderr, "emacs daemon: daemon name absent or too long\n"); | |
1094 | exit(1); | |
1095 | } | |
1096 | dname_arg2[0] = '\0'; | |
1097 | sscanf (dname_arg, "\n%d,%d\n%s", &(daemon_pipe[0]), &(daemon_pipe[1]), | |
1098 | dname_arg2); | |
0b963a93 | 1099 | dname_arg = *dname_arg2 ? dname_arg2 : NULL; |
b3243e6f | 1100 | } |
cfa6accb | 1101 | #endif /* NS_IMPL_COCOA */ |
b3243e6f | 1102 | |
4ff029f6 DN |
1103 | if (dname_arg) |
1104 | daemon_name = xstrdup (dname_arg); | |
5790ef40 DN |
1105 | /* Close unused reading end of the pipe. */ |
1106 | close (daemon_pipe[0]); | |
7c19d3ae DN |
1107 | /* Make sure that the used end of the pipe is closed on exec, so |
1108 | that it is not accessible to programs started from .emacs. */ | |
1109 | fcntl (daemon_pipe[1], F_SETFD, FD_CLOEXEC); | |
1110 | ||
eab2ee89 DN |
1111 | #ifdef HAVE_SETSID |
1112 | setsid(); | |
1113 | #endif | |
eab2ee89 | 1114 | #else /* DOS_NT */ |
9d29095c DN |
1115 | fprintf (stderr, "This platform does not support the -daemon flag.\n"); |
1116 | exit (1); | |
eab2ee89 | 1117 | #endif /* DOS_NT */ |
9d29095c | 1118 | } |
eab2ee89 | 1119 | |
edb85f59 RS |
1120 | if (! noninteractive) |
1121 | { | |
edb85f59 RS |
1122 | #if defined (USG5) && defined (INTERRUPT_INPUT) |
1123 | setpgrp (); | |
1124 | #endif | |
ae9e757a | 1125 | #if defined (HAVE_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC) |
5467331d | 1126 | { |
f57e2426 | 1127 | extern void malloc_enable_thread (void); |
5467331d YM |
1128 | |
1129 | malloc_enable_thread (); | |
1130 | } | |
edb85f59 RS |
1131 | #endif |
1132 | } | |
1133 | ||
fb8e9847 | 1134 | init_signals (); |
fb8e9847 | 1135 | |
1efa2983 KH |
1136 | /* Don't catch SIGHUP if dumping. */ |
1137 | if (1 | |
1138 | #ifndef CANNOT_DUMP | |
1139 | && initialized | |
1140 | #endif | |
1141 | ) | |
1142 | { | |
57e3d22a | 1143 | sigblock (sigmask (SIGHUP)); |
1efa2983 KH |
1144 | /* In --batch mode, don't catch SIGHUP if already ignored. |
1145 | That makes nohup work. */ | |
1146 | if (! noninteractive | |
1147 | || signal (SIGHUP, SIG_IGN) != SIG_IGN) | |
1148 | signal (SIGHUP, fatal_error_signal); | |
57e3d22a | 1149 | sigunblock (sigmask (SIGHUP)); |
1efa2983 KH |
1150 | } |
1151 | ||
f927c5ae JB |
1152 | if ( |
1153 | #ifndef CANNOT_DUMP | |
1154 | ! noninteractive || initialized | |
1155 | #else | |
1156 | 1 | |
1157 | #endif | |
1158 | ) | |
1159 | { | |
1efa2983 | 1160 | /* Don't catch these signals in batch mode if dumping. |
f927c5ae JB |
1161 | On some machines, this sets static data that would make |
1162 | signal fail to work right when the dumped Emacs is run. */ | |
f927c5ae JB |
1163 | signal (SIGQUIT, fatal_error_signal); |
1164 | signal (SIGILL, fatal_error_signal); | |
1165 | signal (SIGTRAP, fatal_error_signal); | |
7317d9e8 | 1166 | #ifdef SIGUSR1 |
71b28d05 | 1167 | add_user_signal (SIGUSR1, "sigusr1"); |
7317d9e8 | 1168 | #endif |
8247c60d | 1169 | #ifdef SIGUSR2 |
71b28d05 | 1170 | add_user_signal (SIGUSR2, "sigusr2"); |
7317d9e8 | 1171 | #endif |
99e372cd RS |
1172 | #ifdef SIGABRT |
1173 | signal (SIGABRT, fatal_error_signal); | |
1174 | #endif | |
1175 | #ifdef SIGHWE | |
1176 | signal (SIGHWE, fatal_error_signal); | |
1177 | #endif | |
1178 | #ifdef SIGPRE | |
1179 | signal (SIGPRE, fatal_error_signal); | |
1180 | #endif | |
1181 | #ifdef SIGORE | |
1182 | signal (SIGORE, fatal_error_signal); | |
1183 | #endif | |
1184 | #ifdef SIGUME | |
1185 | signal (SIGUME, fatal_error_signal); | |
1186 | #endif | |
1187 | #ifdef SIGDLK | |
1188 | signal (SIGDLK, fatal_error_signal); | |
1189 | #endif | |
1190 | #ifdef SIGCPULIM | |
1191 | signal (SIGCPULIM, fatal_error_signal); | |
1192 | #endif | |
a90538cb JB |
1193 | #ifdef SIGIOT |
1194 | /* This is missing on some systems - OS/2, for example. */ | |
f927c5ae | 1195 | signal (SIGIOT, fatal_error_signal); |
a90538cb | 1196 | #endif |
f927c5ae JB |
1197 | #ifdef SIGEMT |
1198 | signal (SIGEMT, fatal_error_signal); | |
1199 | #endif | |
1200 | signal (SIGFPE, fatal_error_signal); | |
00eaaa32 | 1201 | #ifdef SIGBUS |
f927c5ae | 1202 | signal (SIGBUS, fatal_error_signal); |
00eaaa32 | 1203 | #endif |
f927c5ae | 1204 | signal (SIGSEGV, fatal_error_signal); |
00eaaa32 | 1205 | #ifdef SIGSYS |
f927c5ae | 1206 | signal (SIGSYS, fatal_error_signal); |
9c524fcb | 1207 | #endif |
9c524fcb GM |
1208 | /* May need special treatment on MS-Windows. See |
1209 | http://lists.gnu.org/archive/html/emacs-devel/2010-09/msg01062.html | |
1210 | Please update the doc of kill-emacs, kill-emacs-hook, and | |
1211 | NEWS if you change this. | |
1212 | */ | |
383ebd15 | 1213 | if (noninteractive) signal (SIGINT, fatal_error_signal); |
f927c5ae JB |
1214 | signal (SIGTERM, fatal_error_signal); |
1215 | #ifdef SIGXCPU | |
1216 | signal (SIGXCPU, fatal_error_signal); | |
1217 | #endif | |
1218 | #ifdef SIGXFSZ | |
1219 | signal (SIGXFSZ, fatal_error_signal); | |
1220 | #endif /* SIGXFSZ */ | |
1221 | ||
271c7b7c RS |
1222 | #ifdef SIGDANGER |
1223 | /* This just means available memory is getting low. */ | |
1224 | signal (SIGDANGER, memory_warning_signal); | |
1225 | #endif | |
1226 | ||
f927c5ae | 1227 | #ifdef AIX |
56e034fa RS |
1228 | /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */ |
1229 | signal (SIGXCPU, fatal_error_signal); | |
f927c5ae JB |
1230 | signal (SIGIOINT, fatal_error_signal); |
1231 | signal (SIGGRANT, fatal_error_signal); | |
1232 | signal (SIGRETRACT, fatal_error_signal); | |
1233 | signal (SIGSOUND, fatal_error_signal); | |
1234 | signal (SIGMSG, fatal_error_signal); | |
1235 | #endif /* AIX */ | |
1236 | } | |
1237 | ||
1238 | noninteractive1 = noninteractive; | |
1239 | ||
7db35a48 | 1240 | /* Perform basic initializations (not merely interning symbols). */ |
f927c5ae JB |
1241 | |
1242 | if (!initialized) | |
1243 | { | |
1244 | init_alloc_once (); | |
1245 | init_obarray (); | |
1246 | init_eval_once (); | |
e37d7195 | 1247 | init_character_once (); |
270ce821 KH |
1248 | init_charset_once (); |
1249 | init_coding_once (); | |
f927c5ae | 1250 | init_syntax_once (); /* Create standard syntax table. */ |
270ce821 | 1251 | init_category_once (); /* Create standard category table. */ |
7db35a48 | 1252 | /* Must be done before init_buffer. */ |
f927c5ae | 1253 | init_casetab_once (); |
7db35a48 PJ |
1254 | init_buffer_once (); /* Create buffer table and some buffers. */ |
1255 | init_minibuf_once (); /* Create list of minibuffers. */ | |
1256 | /* Must precede init_window_once. */ | |
1257 | ||
90d920b6 GM |
1258 | /* Call syms_of_xfaces before init_window_once because that |
1259 | function creates Vterminal_frame. Termcap frames now use | |
1260 | faces, and the face implementation uses some symbols as | |
1261 | face names. */ | |
90d920b6 | 1262 | syms_of_xfaces (); |
4ea81208 KL |
1263 | /* XXX syms_of_keyboard uses some symbols in keymap.c. It would |
1264 | be better to arrange things not to have this dependency. */ | |
1265 | syms_of_keymap (); | |
7a18af49 KR |
1266 | /* Call syms_of_keyboard before init_window_once because |
1267 | keyboard sets up symbols that include some face names that | |
1268 | the X support will want to use. This can happen when | |
1269 | CANNOT_DUMP is defined. */ | |
1270 | syms_of_keyboard (); | |
90d920b6 | 1271 | |
985773c9 MB |
1272 | /* Called before syms_of_fileio, because it sets up Qerror_condition. */ |
1273 | syms_of_data (); | |
1274 | syms_of_fileio (); | |
1275 | /* Before syms_of_coding to initialize Vgc_cons_threshold. */ | |
1276 | syms_of_alloc (); | |
1277 | /* Before syms_of_coding because it initializes Qcharsetp. */ | |
1278 | syms_of_charset (); | |
1279 | /* Before init_window_once, because it sets up the | |
1280 | Vcoding_system_hash_table. */ | |
1281 | syms_of_coding (); /* This should be after syms_of_fileio. */ | |
1a578e9b | 1282 | |
7db35a48 | 1283 | init_window_once (); /* Init the window system. */ |
6b61353c KH |
1284 | #ifdef HAVE_WINDOW_SYSTEM |
1285 | init_fringe_once (); /* Swap bitmaps if necessary. */ | |
1286 | #endif /* HAVE_WINDOW_SYSTEM */ | |
f927c5ae JB |
1287 | } |
1288 | ||
1289 | init_alloc (); | |
68c45bf0 PE |
1290 | |
1291 | if (do_initial_setlocale) | |
1292 | { | |
1293 | fixup_locale (); | |
ca9c0567 PE |
1294 | Vsystem_messages_locale = Vprevious_system_messages_locale; |
1295 | Vsystem_time_locale = Vprevious_system_time_locale; | |
68c45bf0 PE |
1296 | } |
1297 | ||
f927c5ae JB |
1298 | init_eval (); |
1299 | init_data (); | |
ad067ea6 | 1300 | #ifdef CLASH_DETECTION |
01f67d2c | 1301 | init_filelock (); |
ad067ea6 | 1302 | #endif |
ab5d0358 | 1303 | init_atimer (); |
7074fde6 | 1304 | running_asynch_code = 0; |
0e956009 | 1305 | |
956e3c7e | 1306 | no_loadup |
b96f9fb7 | 1307 | = argmatch (argv, argc, "-nl", "--no-loadup", 6, NULL, &skip_args); |
956e3c7e | 1308 | |
66b7b0fe GM |
1309 | no_site_lisp |
1310 | = argmatch (argv, argc, "-nsl", "--no-site-lisp", 11, NULL, &skip_args); | |
1311 | ||
edfda783 AR |
1312 | #ifdef HAVE_NS |
1313 | ns_alloc_autorelease_pool(); | |
1314 | if (!noninteractive) | |
1315 | { | |
edfda783 AR |
1316 | #ifdef NS_IMPL_COCOA |
1317 | if (skip_args < argc) | |
1318 | { | |
32299e33 PE |
1319 | /* FIXME: Do the right thing if getenv returns NULL, or if |
1320 | chdir fails. */ | |
edfda783 AR |
1321 | if (!strncmp(argv[skip_args], "-psn", 4)) |
1322 | { | |
1323 | skip_args += 1; | |
3d0a4431 | 1324 | chdir (getenv ("HOME")); |
edfda783 | 1325 | } |
95889848 | 1326 | else if (skip_args+1 < argc && !strncmp(argv[skip_args+1], "-psn", 4)) |
edfda783 | 1327 | { |
95889848 | 1328 | skip_args += 2; |
3d0a4431 | 1329 | chdir (getenv ("HOME")); |
edfda783 AR |
1330 | } |
1331 | } | |
9b68317c | 1332 | #endif /* COCOA */ |
edfda783 AR |
1333 | } |
1334 | #endif /* HAVE_NS */ | |
1335 | ||
956e3c7e RS |
1336 | #ifdef HAVE_X_WINDOWS |
1337 | /* Stupid kludge to catch command-line display spec. We can't | |
1338 | handle this argument entirely in window system dependent code | |
1339 | because we don't even know which window system dependent code | |
1340 | to run until we've recognized this argument. */ | |
1341 | { | |
1342 | char *displayname = 0; | |
956e3c7e RS |
1343 | int count_before = skip_args; |
1344 | ||
1345 | /* Skip any number of -d options, but only use the last one. */ | |
1346 | while (1) | |
1347 | { | |
1348 | int count_before_this = skip_args; | |
1349 | ||
1350 | if (argmatch (argv, argc, "-d", "--display", 3, &displayname, &skip_args)) | |
1351 | display_arg = 1; | |
1352 | else if (argmatch (argv, argc, "-display", 0, 3, &displayname, &skip_args)) | |
1353 | display_arg = 1; | |
1354 | else | |
1355 | break; | |
1356 | ||
1357 | count_before = count_before_this; | |
1358 | } | |
1359 | ||
1360 | /* If we have the form --display=NAME, | |
1361 | convert it into -d name. | |
1362 | This requires inserting a new element into argv. */ | |
0065d054 | 1363 | if (displayname && count_before < skip_args) |
956e3c7e | 1364 | { |
0065d054 PE |
1365 | if (skip_args == count_before + 1) |
1366 | { | |
1367 | memmove (argv + count_before + 3, argv + count_before + 2, | |
1368 | (argc - (count_before + 2)) * sizeof *argv); | |
1369 | argv[count_before + 2] = displayname; | |
1370 | argc++; | |
1371 | } | |
1372 | argv[count_before + 1] = (char *) "-d"; | |
956e3c7e | 1373 | } |
956e3c7e | 1374 | |
66b7b0fe GM |
1375 | if (! no_site_lisp) |
1376 | { | |
1377 | if (argmatch (argv, argc, "-Q", "--quick", 3, NULL, &skip_args) | |
1378 | || argmatch (argv, argc, "-quick", 0, 2, NULL, &skip_args)) | |
1379 | no_site_lisp = 1; | |
1380 | } | |
1381 | ||
956e3c7e RS |
1382 | /* Don't actually discard this arg. */ |
1383 | skip_args = count_before; | |
1384 | } | |
66b7b0fe GM |
1385 | #else /* !HAVE_X_WINDOWS */ |
1386 | if (! no_site_lisp) | |
1387 | { | |
1388 | int count_before = skip_args; | |
1389 | ||
1390 | if (argmatch (argv, argc, "-Q", "--quick", 3, NULL, &skip_args) | |
1391 | || argmatch (argv, argc, "-quick", 0, 2, NULL, &skip_args)) | |
1392 | no_site_lisp = 1; | |
1393 | ||
1394 | skip_args = count_before; | |
1395 | } | |
956e3c7e RS |
1396 | #endif |
1397 | ||
1398 | /* argmatch must not be used after here, | |
1399 | except when bulding temacs | |
1400 | because the -d argument has not been skipped in skip_args. */ | |
1401 | ||
29b89fe0 RS |
1402 | #ifdef MSDOS |
1403 | /* Call early 'cause init_environment needs it. */ | |
1404 | init_dosfns (); | |
1405 | /* Set defaults for several environment variables. */ | |
18198bb2 RS |
1406 | if (initialized) |
1407 | init_environment (argc, argv, skip_args); | |
1408 | else | |
d1fc6752 | 1409 | tzset (); |
18198bb2 | 1410 | #endif /* MSDOS */ |
29b89fe0 | 1411 | |
8ba50e1a | 1412 | #ifdef WINDOWSNT |
9785d95b | 1413 | globals_of_w32 (); |
8ba50e1a | 1414 | /* Initialize environment from registry settings. */ |
a3a58294 | 1415 | init_environment (argv); |
7db35a48 | 1416 | init_ntproc (); /* must precede init_editfns. */ |
8ba50e1a GV |
1417 | #endif |
1418 | ||
edfda783 AR |
1419 | #ifdef HAVE_NS |
1420 | #ifndef CANNOT_DUMP | |
1421 | if (initialized) | |
1422 | #endif | |
1423 | ns_init_paths (); | |
1424 | #endif | |
1425 | ||
8b4eb796 KR |
1426 | /* Initialize and GC-protect Vinitial_environment and |
1427 | Vprocess_environment before set_initial_environment fills them | |
1428 | in. */ | |
1429 | if (!initialized) | |
1430 | syms_of_callproc (); | |
0e956009 JB |
1431 | /* egetenv is a pretty low-level facility, which may get called in |
1432 | many circumstances; it seems flimsy to put off initializing it | |
738db178 DN |
1433 | until calling init_callproc. Do not do it when dumping. */ |
1434 | if (initialized || ((strcmp (argv[argc-1], "dump") != 0 | |
1435 | && strcmp (argv[argc-1], "bootstrap") != 0))) | |
1436 | set_initial_environment (); | |
1437 | ||
93aed04d | 1438 | /* AIX crashes are reported in system versions 3.2.3 and 3.2.4 |
5990851d KL |
1439 | if this is not done. Do it after set_global_environment so that we |
1440 | don't pollute Vglobal_environment. */ | |
fa09a82d | 1441 | /* Setting LANG here will defeat the startup locale processing... */ |
f2a77c3a | 1442 | #ifdef AIX |
93aed04d RS |
1443 | putenv ("LANG=C"); |
1444 | #endif | |
0e956009 | 1445 | |
7db35a48 | 1446 | init_buffer (); /* Init default directory of main buffer. */ |
ace40a69 | 1447 | |
7928f0b5 | 1448 | init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */ |
ace40a69 | 1449 | init_cmdargs (argc, argv, skip_args); /* Must precede init_lread. */ |
380e25b8 RS |
1450 | |
1451 | if (initialized) | |
1452 | { | |
7db35a48 | 1453 | /* Erase any pre-dump messages in the message log, to avoid confusion. */ |
380e25b8 RS |
1454 | Lisp_Object old_log_max; |
1455 | old_log_max = Vmessage_log_max; | |
1456 | XSETFASTINT (Vmessage_log_max, 0); | |
f6fe7bb5 | 1457 | message_dolog ("", 0, 1, 0); |
380e25b8 RS |
1458 | Vmessage_log_max = old_log_max; |
1459 | } | |
1460 | ||
7928f0b5 | 1461 | init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */ |
fb8e9847 | 1462 | init_lread (); |
f927c5ae | 1463 | |
8bb697c0 RS |
1464 | /* Intern the names of all standard functions and variables; |
1465 | define standard keys. */ | |
f927c5ae JB |
1466 | |
1467 | if (!initialized) | |
1468 | { | |
4230ab74 KR |
1469 | /* The basic levels of Lisp must come first. Note that |
1470 | syms_of_data and some others have already been called. */ | |
e37d7195 | 1471 | syms_of_chartab (); |
fb8e9847 | 1472 | syms_of_lread (); |
f927c5ae JB |
1473 | syms_of_print (); |
1474 | syms_of_eval (); | |
1475 | syms_of_fns (); | |
f927c5ae | 1476 | syms_of_floatfns (); |
f927c5ae | 1477 | |
f927c5ae JB |
1478 | syms_of_buffer (); |
1479 | syms_of_bytecode (); | |
1480 | syms_of_callint (); | |
1481 | syms_of_casefiddle (); | |
1482 | syms_of_casetab (); | |
270ce821 KH |
1483 | syms_of_category (); |
1484 | syms_of_ccl (); | |
e37d7195 | 1485 | syms_of_character (); |
f927c5ae | 1486 | syms_of_cmds (); |
f927c5ae | 1487 | syms_of_dired (); |
f927c5ae JB |
1488 | syms_of_display (); |
1489 | syms_of_doc (); | |
1490 | syms_of_editfns (); | |
1491 | syms_of_emacs (); | |
f927c5ae | 1492 | syms_of_filelock (); |
f927c5ae | 1493 | syms_of_indent (); |
c2c5ed2c | 1494 | syms_of_insdel (); |
4ea81208 | 1495 | /* syms_of_keymap (); */ |
f927c5ae JB |
1496 | syms_of_macros (); |
1497 | syms_of_marker (); | |
1498 | syms_of_minibuf (); | |
f927c5ae | 1499 | syms_of_process (); |
f927c5ae | 1500 | syms_of_search (); |
1cbd5d9d | 1501 | syms_of_frame (); |
f927c5ae | 1502 | syms_of_syntax (); |
ed8dad6b | 1503 | syms_of_terminal (); |
0d934e7b | 1504 | syms_of_term (); |
f927c5ae | 1505 | syms_of_undo (); |
90d920b6 GM |
1506 | #ifdef HAVE_SOUND |
1507 | syms_of_sound (); | |
1508 | #endif | |
bef79ee4 | 1509 | syms_of_textprop (); |
9d100795 | 1510 | syms_of_composite (); |
05687c54 RS |
1511 | #ifdef WINDOWSNT |
1512 | syms_of_ntproc (); | |
1513 | #endif /* WINDOWSNT */ | |
f927c5ae JB |
1514 | syms_of_window (); |
1515 | syms_of_xdisp (); | |
d53f587b | 1516 | syms_of_font (); |
4fa9161d | 1517 | #ifdef HAVE_WINDOW_SYSTEM |
6b61353c KH |
1518 | syms_of_fringe (); |
1519 | syms_of_image (); | |
1520 | #endif /* HAVE_WINDOW_SYSTEM */ | |
f927c5ae | 1521 | #ifdef HAVE_X_WINDOWS |
72412588 | 1522 | syms_of_xterm (); |
f927c5ae | 1523 | syms_of_xfns (); |
edfda783 | 1524 | syms_of_xmenu (); |
270ce821 | 1525 | syms_of_fontset (); |
637fa988 | 1526 | syms_of_xsettings (); |
28b1b672 JD |
1527 | #ifdef HAVE_X_SM |
1528 | syms_of_xsmfns (); | |
1529 | #endif | |
72412588 JB |
1530 | #ifdef HAVE_X11 |
1531 | syms_of_xselect (); | |
1532 | #endif | |
f927c5ae JB |
1533 | #endif /* HAVE_X_WINDOWS */ |
1534 | ||
381408e2 LMI |
1535 | #ifdef HAVE_LIBXML2 |
1536 | syms_of_xml (); | |
1537 | #endif | |
1538 | ||
4e77ce60 | 1539 | syms_of_menu (); |
4e77ce60 | 1540 | |
8ba50e1a | 1541 | #ifdef HAVE_NTGUI |
fbd6baed GV |
1542 | syms_of_w32term (); |
1543 | syms_of_w32fns (); | |
fbd6baed GV |
1544 | syms_of_w32select (); |
1545 | syms_of_w32menu (); | |
02062ac3 | 1546 | syms_of_fontset (); |
8ba50e1a GV |
1547 | #endif /* HAVE_NTGUI */ |
1548 | ||
40da1153 EZ |
1549 | #ifdef MSDOS |
1550 | syms_of_xmenu (); | |
2e31d424 DN |
1551 | syms_of_dosfns(); |
1552 | syms_of_msdos(); | |
1553 | syms_of_win16select(); | |
40da1153 EZ |
1554 | #endif /* MSDOS */ |
1555 | ||
edfda783 AR |
1556 | #ifdef HAVE_NS |
1557 | syms_of_nsterm (); | |
1558 | syms_of_nsfns (); | |
1559 | syms_of_nsmenu (); | |
1560 | syms_of_nsselect (); | |
1561 | syms_of_fontset (); | |
1562 | #endif /* HAVE_NS */ | |
1563 | ||
8af55556 TZ |
1564 | #ifdef HAVE_GNUTLS |
1565 | syms_of_gnutls (); | |
1566 | #endif | |
1567 | ||
033b73e2 MA |
1568 | #ifdef HAVE_DBUS |
1569 | syms_of_dbusbind (); | |
1570 | #endif /* HAVE_DBUS */ | |
1571 | ||
2e31d424 DN |
1572 | #ifdef WINDOWSNT |
1573 | syms_of_ntterm (); | |
1574 | #endif /* WINDOWSNT */ | |
f927c5ae JB |
1575 | |
1576 | keys_of_casefiddle (); | |
1577 | keys_of_cmds (); | |
1578 | keys_of_buffer (); | |
1579 | keys_of_keyboard (); | |
1580 | keys_of_keymap (); | |
f927c5ae | 1581 | keys_of_window (); |
9785d95b | 1582 | } |
3b6536b1 | 1583 | else |
9785d95b | 1584 | { |
3b6536b1 AS |
1585 | /* Initialization that must be done even if the global variable |
1586 | initialized is non zero. */ | |
9785d95b BK |
1587 | #ifdef HAVE_NTGUI |
1588 | globals_of_w32fns (); | |
1589 | globals_of_w32menu (); | |
52c7f9ee | 1590 | globals_of_w32select (); |
3b6536b1 | 1591 | #endif /* HAVE_NTGUI */ |
f927c5ae JB |
1592 | } |
1593 | ||
cf411e8d KH |
1594 | init_charset (); |
1595 | ||
f7cf8b20 | 1596 | init_editfns (); /* init_process uses Voperating_system_release. */ |
2491d293 | 1597 | init_process (); /* init_display uses add_keyboard_wait_descriptor. */ |
7db35a48 | 1598 | init_keyboard (); /* This too must precede init_sys_modes. */ |
0a125897 | 1599 | if (!noninteractive) |
7c2fb837 | 1600 | init_display (); /* Determine terminal type. Calls init_sys_modes. */ |
90d920b6 | 1601 | init_fns (); |
8bb697c0 | 1602 | init_xdisp (); |
6b61353c KH |
1603 | #ifdef HAVE_WINDOW_SYSTEM |
1604 | init_fringe (); | |
1605 | init_image (); | |
1606 | #endif /* HAVE_WINDOW_SYSTEM */ | |
8bb697c0 | 1607 | init_macros (); |
8bb697c0 | 1608 | init_floatfns (); |
90d920b6 GM |
1609 | #ifdef HAVE_SOUND |
1610 | init_sound (); | |
1611 | #endif | |
75816372 | 1612 | init_window (); |
74d75424 | 1613 | init_font (); |
087fc47a | 1614 | |
f927c5ae JB |
1615 | if (!initialized) |
1616 | { | |
e2925360 | 1617 | char *file; |
7db35a48 | 1618 | /* Handle -l loadup, args passed by Makefile. */ |
df6530f8 | 1619 | if (argmatch (argv, argc, "-l", "--load", 3, &file, &skip_args)) |
d67b4f80 | 1620 | Vtop_level = Fcons (intern_c_string ("load"), |
e2925360 | 1621 | Fcons (build_string (file), Qnil)); |
f927c5ae | 1622 | /* Unless next switch is -nl, load "loadup.el" first thing. */ |
956e3c7e | 1623 | if (! no_loadup) |
d67b4f80 | 1624 | Vtop_level = Fcons (intern_c_string ("load"), |
f927c5ae | 1625 | Fcons (build_string ("loadup.el"), Qnil)); |
f927c5ae JB |
1626 | } |
1627 | ||
93572b43 KH |
1628 | if (initialized) |
1629 | { | |
0269dedb RS |
1630 | #ifdef HAVE_TZSET |
1631 | { | |
1632 | /* If the execution TZ happens to be the same as the dump TZ, | |
1633 | change it to some other value and then change it back, | |
1634 | to force the underlying implementation to reload the TZ info. | |
1635 | This is needed on implementations that load TZ info from files, | |
1636 | since the TZ file contents may differ between dump and execution. */ | |
1637 | char *tz = getenv ("TZ"); | |
1638 | if (tz && !strcmp (tz, dump_tz)) | |
1639 | { | |
1640 | ++*tz; | |
1641 | tzset (); | |
1642 | --*tz; | |
1643 | } | |
1644 | } | |
1645 | #endif | |
93572b43 KH |
1646 | } |
1647 | ||
ecf783fa EZ |
1648 | /* Set up for profiling. This is known to work on FreeBSD, |
1649 | GNU/Linux and MinGW. It might work on some other systems too. | |
1650 | Give it a try and tell us if it works on your system. To compile | |
7b3a82d7 | 1651 | for profiling, use the configure option --enable-profiling. */ |
ecf783fa | 1652 | #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__) |
e610ea43 RS |
1653 | #ifdef PROFILING |
1654 | if (initialized) | |
1655 | { | |
7db35a48 | 1656 | extern void _mcleanup (); |
ecf783fa EZ |
1657 | #ifdef __MINGW32__ |
1658 | extern unsigned char etext asm ("etext"); | |
1659 | #else | |
e610ea43 | 1660 | extern char etext; |
ecf783fa | 1661 | #endif |
dcc19aac AS |
1662 | #ifdef HAVE___EXECUTABLE_START |
1663 | /* This symbol is defined by GNU ld to the start of the text | |
1664 | segment. */ | |
1665 | extern char __executable_start[]; | |
1666 | #else | |
90d920b6 | 1667 | extern void safe_bcopy (); |
dcc19aac | 1668 | #endif |
67a5596f | 1669 | |
e610ea43 | 1670 | atexit (_mcleanup); |
dcc19aac AS |
1671 | #ifdef HAVE___EXECUTABLE_START |
1672 | monstartup (__executable_start, &etext); | |
1673 | #else | |
90d920b6 GM |
1674 | /* This uses safe_bcopy because that function comes first in the |
1675 | Emacs executable. It might be better to use something that | |
1676 | gives the start of the text segment, but start_of_text is not | |
1677 | defined on all systems now. */ | |
72af86bd AS |
1678 | /* FIXME: Does not work on architectures with function |
1679 | descriptors. */ | |
90d920b6 | 1680 | monstartup (safe_bcopy, &etext); |
dcc19aac | 1681 | #endif |
e610ea43 RS |
1682 | } |
1683 | else | |
1684 | moncontrol (0); | |
1685 | #endif | |
1686 | #endif | |
1687 | ||
f927c5ae JB |
1688 | initialized = 1; |
1689 | ||
e7536cff RS |
1690 | #ifdef LOCALTIME_CACHE |
1691 | /* Some versions of localtime have a bug. They cache the value of the time | |
279cc2b8 JB |
1692 | zone rather than looking it up every time. Since localtime() is |
1693 | called to bolt the undumping time into the undumped emacs, this | |
afe9fae9 | 1694 | results in localtime ignoring the TZ environment variable. |
7db35a48 | 1695 | This flushes the new TZ value into localtime. */ |
afe9fae9 | 1696 | tzset (); |
e7536cff | 1697 | #endif /* defined (LOCALTIME_CACHE) */ |
279cc2b8 | 1698 | |
f927c5ae JB |
1699 | /* Enter editor command loop. This never returns. */ |
1700 | Frecursive_edit (); | |
1701 | /* NOTREACHED */ | |
6bbd7a29 | 1702 | return 0; |
f927c5ae JB |
1703 | } |
1704 | \f | |
081bef73 RS |
1705 | /* Sort the args so we can find the most important ones |
1706 | at the beginning of argv. */ | |
1707 | ||
1708 | /* First, here's a table of all the standard options. */ | |
1709 | ||
1710 | struct standard_args | |
1711 | { | |
5e2327cf DN |
1712 | const char *name; |
1713 | const char *longname; | |
081bef73 RS |
1714 | int priority; |
1715 | int nargs; | |
1716 | }; | |
1717 | ||
35f08c38 | 1718 | static const struct standard_args standard_args[] = |
081bef73 | 1719 | { |
05922407 | 1720 | { "-version", "--version", 150, 0 }, |
f63d0028 | 1721 | { "-chdir", "--chdir", 130, 1 }, |
05922407 | 1722 | { "-t", "--terminal", 120, 1 }, |
400d6fa9 | 1723 | { "-nw", "--no-window-system", 110, 0 }, |
05922407 RS |
1724 | { "-nw", "--no-windows", 110, 0 }, |
1725 | { "-batch", "--batch", 100, 0 }, | |
6e910e07 | 1726 | { "-script", "--script", 100, 1 }, |
eab2ee89 | 1727 | { "-daemon", "--daemon", 99, 0 }, |
05922407 | 1728 | { "-help", "--help", 90, 0 }, |
956e3c7e | 1729 | { "-nl", "--no-loadup", 70, 0 }, |
66b7b0fe | 1730 | { "-nsl", "--no-site-lisp", 65, 0 }, |
956e3c7e RS |
1731 | /* -d must come last before the options handled in startup.el. */ |
1732 | { "-d", "--display", 60, 1 }, | |
1733 | { "-display", 0, 60, 1 }, | |
4fe22cdf | 1734 | /* Now for the options handled in `command-line' (startup.el). */ |
66b7b0fe | 1735 | /* (Note that to imply -nsl, -Q is partially handled here.) */ |
a1716a57 RS |
1736 | { "-Q", "--quick", 55, 0 }, |
1737 | { "-quick", 0, 55, 0 }, | |
081bef73 RS |
1738 | { "-q", "--no-init-file", 50, 0 }, |
1739 | { "-no-init-file", 0, 50, 0 }, | |
1740 | { "-no-site-file", "--no-site-file", 40, 0 }, | |
1741 | { "-u", "--user", 30, 1 }, | |
1742 | { "-user", 0, 30, 1 }, | |
1743 | { "-debug-init", "--debug-init", 20, 0 }, | |
f2bc3538 | 1744 | { "-iconic", "--iconic", 15, 0 }, |
a1716a57 | 1745 | { "-D", "--basic-display", 12, 0}, |
e09b9180 | 1746 | { "-basic-display", 0, 12, 0}, |
4fe22cdf CY |
1747 | { "-nbc", "--no-blinking-cursor", 12, 0 }, |
1748 | /* Now for the options handled in `command-line-1' (startup.el). */ | |
1749 | { "-nbi", "--no-bitmap-icon", 10, 0 }, | |
081bef73 RS |
1750 | { "-bg", "--background-color", 10, 1 }, |
1751 | { "-background", 0, 10, 1 }, | |
1752 | { "-fg", "--foreground-color", 10, 1 }, | |
1753 | { "-foreground", 0, 10, 1 }, | |
1754 | { "-bd", "--border-color", 10, 1 }, | |
1755 | { "-bw", "--border-width", 10, 1 }, | |
1756 | { "-ib", "--internal-border", 10, 1 }, | |
1757 | { "-ms", "--mouse-color", 10, 1 }, | |
1758 | { "-cr", "--cursor-color", 10, 1 }, | |
1759 | { "-fn", "--font", 10, 1 }, | |
1760 | { "-font", 0, 10, 1 }, | |
94452530 EZ |
1761 | { "-fs", "--fullscreen", 10, 0 }, |
1762 | { "-fw", "--fullwidth", 10, 0 }, | |
1763 | { "-fh", "--fullheight", 10, 0 }, | |
3f1c6666 | 1764 | { "-mm", "--maximized", 10, 0 }, |
081bef73 RS |
1765 | { "-g", "--geometry", 10, 1 }, |
1766 | { "-geometry", 0, 10, 1 }, | |
1767 | { "-T", "--title", 10, 1 }, | |
ae63ae52 | 1768 | { "-title", 0, 10, 1 }, |
081bef73 RS |
1769 | { "-name", "--name", 10, 1 }, |
1770 | { "-xrm", "--xrm", 10, 1 }, | |
1540a61a | 1771 | { "-parent-id", "--parent-id", 10, 1 }, |
fcdeb5d9 RS |
1772 | { "-r", "--reverse-video", 5, 0 }, |
1773 | { "-rv", 0, 5, 0 }, | |
1774 | { "-reverse", 0, 5, 0 }, | |
ae63ae52 | 1775 | { "-hb", "--horizontal-scroll-bars", 5, 0 }, |
fcdeb5d9 | 1776 | { "-vb", "--vertical-scroll-bars", 5, 0 }, |
d20e1b1e | 1777 | { "-color", "--color", 5, 0}, |
16706228 JL |
1778 | { "-no-splash", "--no-splash", 3, 0 }, |
1779 | { "-no-desktop", "--no-desktop", 3, 0 }, | |
edfda783 AR |
1780 | #ifdef HAVE_NS |
1781 | { "-NSAutoLaunch", 0, 5, 1 }, | |
1782 | { "-NXAutoLaunch", 0, 5, 1 }, | |
1783 | { "-disable-font-backend", "--disable-font-backend", 65, 0 }, | |
1784 | { "-_NSMachLaunch", 0, 85, 1 }, | |
1785 | { "-MachLaunch", 0, 85, 1 }, | |
1786 | { "-macosx", 0, 85, 0 }, | |
1787 | { "-NSHost", 0, 85, 1 }, | |
1788 | #endif | |
fcdeb5d9 RS |
1789 | /* These have the same priority as ordinary file name args, |
1790 | so they are not reordered with respect to those. */ | |
4af9e0b3 RS |
1791 | { "-L", "--directory", 0, 1 }, |
1792 | { "-directory", 0, 0, 1 }, | |
fcdeb5d9 RS |
1793 | { "-l", "--load", 0, 1 }, |
1794 | { "-load", 0, 0, 1 }, | |
21a4ff8e GM |
1795 | /* This has no longname, because using --scriptload confuses sort_args, |
1796 | because then the --script long option seems to match twice; ie | |
1797 | you can't have a long option which is a prefix of another long | |
1798 | option. In any case, this is entirely an internal option. */ | |
1799 | { "-scriptload", NULL, 0, 1 }, | |
fcdeb5d9 RS |
1800 | { "-f", "--funcall", 0, 1 }, |
1801 | { "-funcall", 0, 0, 1 }, | |
575985b1 | 1802 | { "-eval", "--eval", 0, 1 }, |
67a5596f | 1803 | { "-execute", "--execute", 0, 1 }, |
2e13f8e9 RS |
1804 | { "-find-file", "--find-file", 0, 1 }, |
1805 | { "-visit", "--visit", 0, 1 }, | |
67a5596f | 1806 | { "-file", "--file", 0, 1 }, |
fcdeb5d9 | 1807 | { "-insert", "--insert", 0, 1 }, |
edfda783 AR |
1808 | #ifdef HAVE_NS |
1809 | { "-NXOpen", 0, 0, 1 }, | |
1810 | { "-NXOpenTemp", 0, 0, 1 }, | |
1811 | { "-NSOpen", 0, 0, 1 }, | |
1812 | { "-NSOpenTemp", 0, 0, 1 }, | |
1813 | { "-GSFilePath", 0, 0, 1 }, | |
1814 | #endif | |
f2bc3538 | 1815 | /* This should be processed after ordinary file name args and the like. */ |
fcdeb5d9 | 1816 | { "-kill", "--kill", -10, 0 }, |
081bef73 RS |
1817 | }; |
1818 | ||
1819 | /* Reorder the elements of ARGV (assumed to have ARGC elements) | |
1820 | so that the highest priority ones come first. | |
1821 | Do not change the order of elements of equal priority. | |
956e3c7e RS |
1822 | If an option takes an argument, keep it and its argument together. |
1823 | ||
1824 | If an option that takes no argument appears more | |
1825 | than once, eliminate all but one copy of it. */ | |
081bef73 RS |
1826 | |
1827 | static void | |
dd4c5104 | 1828 | sort_args (int argc, char **argv) |
081bef73 RS |
1829 | { |
1830 | char **new = (char **) xmalloc (sizeof (char *) * argc); | |
1831 | /* For each element of argv, | |
1832 | the corresponding element of options is: | |
1833 | 0 for an option that takes no arguments, | |
1834 | 1 for an option that takes one argument, etc. | |
1835 | -1 for an ordinary non-option argument. */ | |
0065d054 PE |
1836 | int *options = xnmalloc (argc, sizeof *options); |
1837 | int *priority = xnmalloc (argc, sizeof *priority); | |
081bef73 | 1838 | int to = 1; |
956e3c7e | 1839 | int incoming_used = 1; |
081bef73 RS |
1840 | int from; |
1841 | int i; | |
1842 | ||
1843 | /* Categorize all the options, | |
1844 | and figure out which argv elts are option arguments. */ | |
1845 | for (from = 1; from < argc; from++) | |
1846 | { | |
1847 | options[from] = -1; | |
fcdeb5d9 | 1848 | priority[from] = 0; |
081bef73 RS |
1849 | if (argv[from][0] == '-') |
1850 | { | |
0b963a93 | 1851 | int match; |
081bef73 | 1852 | |
c96f26f4 RS |
1853 | /* If we have found "--", don't consider |
1854 | any more arguments as options. */ | |
249443b6 | 1855 | if (argv[from][1] == '-' && argv[from][2] == 0) |
c96f26f4 RS |
1856 | { |
1857 | /* Leave the "--", and everything following it, at the end. */ | |
1858 | for (; from < argc; from++) | |
1859 | { | |
1860 | priority[from] = -100; | |
1861 | options[from] = -1; | |
1862 | } | |
1863 | break; | |
1864 | } | |
1865 | ||
081bef73 RS |
1866 | /* Look for a match with a known old-fashioned option. */ |
1867 | for (i = 0; i < sizeof (standard_args) / sizeof (standard_args[0]); i++) | |
1868 | if (!strcmp (argv[from], standard_args[i].name)) | |
1869 | { | |
1870 | options[from] = standard_args[i].nargs; | |
1871 | priority[from] = standard_args[i].priority; | |
fd76ec52 RS |
1872 | if (from + standard_args[i].nargs >= argc) |
1873 | fatal ("Option `%s' requires an argument\n", argv[from]); | |
081bef73 RS |
1874 | from += standard_args[i].nargs; |
1875 | goto done; | |
1876 | } | |
1877 | ||
1878 | /* Look for a match with a known long option. | |
1879 | MATCH is -1 if no match so far, -2 if two or more matches so far, | |
1880 | >= 0 (the table index of the match) if just one match so far. */ | |
1881 | if (argv[from][1] == '-') | |
1882 | { | |
0b963a93 PE |
1883 | char const *equals = strchr (argv[from], '='); |
1884 | ptrdiff_t thislen = | |
1885 | equals ? equals - argv[from] : strlen (argv[from]); | |
1886 | ||
081bef73 | 1887 | match = -1; |
081bef73 | 1888 | |
f609ef57 KH |
1889 | for (i = 0; |
1890 | i < sizeof (standard_args) / sizeof (standard_args[0]); i++) | |
1891 | if (standard_args[i].longname | |
1892 | && !strncmp (argv[from], standard_args[i].longname, | |
1893 | thislen)) | |
081bef73 RS |
1894 | { |
1895 | if (match == -1) | |
1896 | match = i; | |
1897 | else | |
1898 | match = -2; | |
1899 | } | |
1900 | ||
1901 | /* If we found exactly one match, use that. */ | |
1902 | if (match >= 0) | |
1903 | { | |
1904 | options[from] = standard_args[match].nargs; | |
1905 | priority[from] = standard_args[match].priority; | |
1906 | /* If --OPTION=VALUE syntax is used, | |
1907 | this option uses just one argv element. */ | |
1908 | if (equals != 0) | |
1909 | options[from] = 0; | |
fd76ec52 RS |
1910 | if (from + options[from] >= argc) |
1911 | fatal ("Option `%s' requires an argument\n", argv[from]); | |
081bef73 RS |
1912 | from += options[from]; |
1913 | } | |
a09a5b5b GM |
1914 | /* FIXME When match < 0, shouldn't there be some error, |
1915 | or at least indication to the user that there was a | |
1916 | problem? */ | |
081bef73 RS |
1917 | } |
1918 | done: ; | |
1919 | } | |
1920 | } | |
1921 | ||
1922 | /* Copy the arguments, in order of decreasing priority, to NEW. */ | |
1923 | new[0] = argv[0]; | |
956e3c7e | 1924 | while (incoming_used < argc) |
081bef73 RS |
1925 | { |
1926 | int best = -1; | |
2c70c992 | 1927 | int best_priority = -9999; |
081bef73 RS |
1928 | |
1929 | /* Find the highest priority remaining option. | |
1930 | If several have equal priority, take the first of them. */ | |
1931 | for (from = 1; from < argc; from++) | |
1932 | { | |
1933 | if (argv[from] != 0 && priority[from] > best_priority) | |
1934 | { | |
1935 | best_priority = priority[from]; | |
1936 | best = from; | |
1937 | } | |
1938 | /* Skip option arguments--they are tied to the options. */ | |
1939 | if (options[from] > 0) | |
1940 | from += options[from]; | |
1941 | } | |
7db35a48 | 1942 | |
081bef73 RS |
1943 | if (best < 0) |
1944 | abort (); | |
1945 | ||
956e3c7e RS |
1946 | /* Copy the highest priority remaining option, with its args, to NEW. |
1947 | Unless it is a duplicate of the previous one. */ | |
1948 | if (! (options[best] == 0 | |
1949 | && ! strcmp (new[to - 1], argv[best]))) | |
1950 | { | |
1951 | new[to++] = argv[best]; | |
1952 | for (i = 0; i < options[best]; i++) | |
1953 | new[to++] = argv[best + i + 1]; | |
1954 | } | |
1955 | ||
1956 | incoming_used += 1 + (options[best] > 0 ? options[best] : 0); | |
081bef73 RS |
1957 | |
1958 | /* Clear out this option in ARGV. */ | |
1959 | argv[best] = 0; | |
1960 | for (i = 0; i < options[best]; i++) | |
1961 | argv[best + i + 1] = 0; | |
1962 | } | |
1963 | ||
81b7af72 RS |
1964 | /* If duplicate options were deleted, fill up extra space with null ptrs. */ |
1965 | while (to < argc) | |
1966 | new[to++] = 0; | |
1967 | ||
72af86bd | 1968 | memcpy (argv, new, sizeof (char *) * argc); |
0bf591da | 1969 | |
68db37aa KS |
1970 | xfree (options); |
1971 | xfree (new); | |
1972 | xfree (priority); | |
081bef73 RS |
1973 | } |
1974 | \f | |
a7ca3326 | 1975 | DEFUN ("kill-emacs", Fkill_emacs, Skill_emacs, 0, 1, "P", |
7db35a48 PJ |
1976 | doc: /* Exit the Emacs job and kill it. |
1977 | If ARG is an integer, return ARG as the exit program code. | |
b224de9b | 1978 | If ARG is a string, stuff it as keyboard input. |
7db35a48 | 1979 | |
9c524fcb | 1980 | This function is called upon receipt of the signals SIGTERM |
383ebd15 | 1981 | or SIGHUP, and upon SIGINT in batch mode. |
9c524fcb | 1982 | |
7db35a48 PJ |
1983 | The value of `kill-emacs-hook', if not void, |
1984 | is a list of functions (of no args), | |
1985 | all of which are called before Emacs is actually killed. */) | |
5842a27b | 1986 | (Lisp_Object arg) |
f927c5ae | 1987 | { |
f927c5ae | 1988 | struct gcpro gcpro1; |
dee091a3 | 1989 | Lisp_Object hook; |
f927c5ae JB |
1990 | |
1991 | GCPRO1 (arg); | |
1992 | ||
1993 | if (feof (stdin)) | |
1994 | arg = Qt; | |
1995 | ||
dee091a3 JD |
1996 | hook = intern ("kill-emacs-hook"); |
1997 | Frun_hooks (1, &hook); | |
f927c5ae | 1998 | |
f927c5ae JB |
1999 | UNGCPRO; |
2000 | ||
1dd3c2d9 CY |
2001 | #ifdef HAVE_X_WINDOWS |
2002 | /* Transfer any clipboards we own to the clipboard manager. */ | |
2003 | x_clipboard_manager_save_all (); | |
2004 | #endif | |
2005 | ||
d0068e25 | 2006 | shut_down_emacs (0, 0, STRINGP (arg) ? arg : Qnil); |
40be253a | 2007 | |
58545838 KH |
2008 | /* If we have an auto-save list file, |
2009 | kill it because we are exiting Emacs deliberately (not crashing). | |
2010 | Do it after shut_down_emacs, which does an auto-save. */ | |
2011 | if (STRINGP (Vauto_save_list_file_name)) | |
42a5b22f | 2012 | unlink (SSDATA (Vauto_save_list_file_name)); |
58545838 | 2013 | |
fa439170 | 2014 | exit (INTEGERP (arg) ? XINT (arg) : EXIT_SUCCESS); |
f927c5ae | 2015 | } |
40be253a JB |
2016 | |
2017 | ||
2018 | /* Perform an orderly shutdown of Emacs. Autosave any modified | |
2019 | buffers, kill any child processes, clean up the terminal modes (if | |
2020 | we're in the foreground), and other stuff like that. Don't perform | |
2021 | any redisplay; this may be called when Emacs is shutting down in | |
2022 | the background, or after its X connection has died. | |
2023 | ||
2024 | If SIG is a signal number, print a message for it. | |
2025 | ||
2026 | This is called by fatal signal handlers, X protocol error handlers, | |
2027 | and Fkill_emacs. */ | |
f7ab4e3d | 2028 | |
40be253a | 2029 | void |
d5a3eaaf | 2030 | shut_down_emacs (int sig, int no_x, Lisp_Object stuff) |
40be253a | 2031 | { |
829d872b RS |
2032 | /* Prevent running of hooks from now on. */ |
2033 | Vrun_hooks = Qnil; | |
2034 | ||
9db03f6c KS |
2035 | /* Don't update display from now on. */ |
2036 | Vinhibit_redisplay = Qt; | |
2037 | ||
7db35a48 | 2038 | /* If we are controlling the terminal, reset terminal modes. */ |
a7ebc409 | 2039 | #ifndef DOS_NT |
40be253a | 2040 | { |
d04d81d2 | 2041 | int pgrp = EMACS_GETPGRP (0); |
12e610e8 DN |
2042 | int tpgrp = tcgetpgrp (0); |
2043 | if ((tpgrp != -1) && tpgrp == pgrp) | |
40be253a | 2044 | { |
28d440ab | 2045 | reset_all_sys_modes (); |
40be253a | 2046 | if (sig && sig != SIGTERM) |
6b61353c | 2047 | fprintf (stderr, "Fatal error (%d)", sig); |
40be253a JB |
2048 | } |
2049 | } | |
2050 | #else | |
2051 | fflush (stdout); | |
0a125897 | 2052 | reset_all_sys_modes (); |
40be253a JB |
2053 | #endif |
2054 | ||
f7ab4e3d RS |
2055 | stuff_buffered_input (stuff); |
2056 | ||
92d835a4 | 2057 | inhibit_sentinels = 1; |
40be253a JB |
2058 | kill_buffer_processes (Qnil); |
2059 | Fdo_auto_save (Qt, Qnil); | |
2060 | ||
2061 | #ifdef CLASH_DETECTION | |
2062 | unlock_all_files (); | |
2063 | #endif | |
2064 | ||
5e7f8733 | 2065 | #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */ |
41423a80 | 2066 | #ifdef HAVE_X_WINDOWS |
f7511647 | 2067 | /* It's not safe to call intern here. Maybe we are crashing. */ |
2246281f KL |
2068 | if (!noninteractive && SYMBOLP (Vinitial_window_system) |
2069 | && SCHARS (SYMBOL_NAME (Vinitial_window_system)) == 1 | |
2070 | && SREF (SYMBOL_NAME (Vinitial_window_system), 0) == 'x' | |
f7511647 | 2071 | && ! no_x) |
41423a80 RS |
2072 | Fx_close_current_connection (); |
2073 | #endif /* HAVE_X_WINDOWS */ | |
5e7f8733 | 2074 | #endif |
41423a80 | 2075 | |
40be253a JB |
2076 | #ifdef SIGIO |
2077 | /* There is a tendency for a SIGIO signal to arrive within exit, | |
2078 | and cause a SIGHUP because the input descriptor is already closed. */ | |
2079 | unrequest_sigio (); | |
2080 | signal (SIGIO, SIG_IGN); | |
2081 | #endif | |
41f339d4 RS |
2082 | |
2083 | #ifdef WINDOWSNT | |
2084 | term_ntproc (); | |
2085 | #endif | |
d546e578 | 2086 | |
cd8d4168 GM |
2087 | /* Do this only if terminating normally, we want glyph matrices |
2088 | etc. in a core dump. */ | |
200f868e | 2089 | if (sig == 0 || sig == SIGTERM) |
cd8d4168 GM |
2090 | { |
2091 | check_glyph_memory (); | |
2092 | check_message_stack (); | |
2093 | } | |
90d920b6 | 2094 | |
d546e578 EZ |
2095 | #ifdef MSDOS |
2096 | dos_cleanup (); | |
2097 | #endif | |
edfda783 AR |
2098 | |
2099 | #ifdef HAVE_NS | |
2100 | ns_term_shutdown (sig); | |
2101 | #endif | |
40be253a JB |
2102 | } |
2103 | ||
2104 | ||
f927c5ae JB |
2105 | \f |
2106 | #ifndef CANNOT_DUMP | |
f927c5ae | 2107 | |
ce701a33 | 2108 | #include "unexec.h" |
dd5ecd6b | 2109 | |
f927c5ae | 2110 | DEFUN ("dump-emacs", Fdump_emacs, Sdump_emacs, 2, 2, 0, |
7db35a48 PJ |
2111 | doc: /* Dump current state of Emacs into executable file FILENAME. |
2112 | Take symbols from SYMFILE (presumably the file you executed to run Emacs). | |
2113 | This is used in the file `loadup.el' when building Emacs. | |
2114 | ||
2115 | You must run Emacs in batch mode in order to dump it. */) | |
5842a27b | 2116 | (Lisp_Object filename, Lisp_Object symfile) |
f927c5ae | 2117 | { |
f927c5ae | 2118 | Lisp_Object tem; |
1b7ddf4f | 2119 | Lisp_Object symbol; |
331379bf | 2120 | int count = SPECPDL_INDEX (); |
4fab758d GM |
2121 | |
2122 | check_pure_size (); | |
f927c5ae | 2123 | |
87a98b1a RS |
2124 | if (! noninteractive) |
2125 | error ("Dumping Emacs works only in batch mode"); | |
2126 | ||
848a925e | 2127 | #ifdef GNU_LINUX |
c339dc2e PE |
2128 | |
2129 | /* Warn if the gap between BSS end and heap start is larger than this. */ | |
2130 | # define MAX_HEAP_BSS_DIFF (1024*1024) | |
2131 | ||
dede2792 JD |
2132 | if (heap_bss_diff > MAX_HEAP_BSS_DIFF) |
2133 | { | |
2134 | fprintf (stderr, "**************************************************\n"); | |
2135 | fprintf (stderr, "Warning: Your system has a gap between BSS and the\n"); | |
b312a492 | 2136 | fprintf (stderr, "heap (%"pMu" bytes). This usually means that exec-shield\n", |
c37caf9d JD |
2137 | heap_bss_diff); |
2138 | fprintf (stderr, "or something similar is in effect. The dump may\n"); | |
e79beb56 | 2139 | fprintf (stderr, "fail because of this. See the section about\n"); |
c37caf9d | 2140 | fprintf (stderr, "exec-shield in etc/PROBLEMS for more information.\n"); |
dede2792 JD |
2141 | fprintf (stderr, "**************************************************\n"); |
2142 | } | |
848a925e | 2143 | #endif /* GNU_LINUX */ |
dede2792 | 2144 | |
1b7ddf4f RS |
2145 | /* Bind `command-line-processed' to nil before dumping, |
2146 | so that the dumped Emacs will process its command line | |
2147 | and set up to work with X windows if appropriate. */ | |
4aaa3607 | 2148 | symbol = intern ("command-line-processed"); |
1b7ddf4f RS |
2149 | specbind (symbol, Qnil); |
2150 | ||
b7826503 | 2151 | CHECK_STRING (filename); |
c9aae259 EN |
2152 | filename = Fexpand_file_name (filename, Qnil); |
2153 | if (!NILP (symfile)) | |
f927c5ae | 2154 | { |
b7826503 | 2155 | CHECK_STRING (symfile); |
d5db4077 | 2156 | if (SCHARS (symfile)) |
c9aae259 | 2157 | symfile = Fexpand_file_name (symfile, Qnil); |
f927c5ae JB |
2158 | } |
2159 | ||
2160 | tem = Vpurify_flag; | |
2161 | Vpurify_flag = Qnil; | |
2162 | ||
0269dedb RS |
2163 | #ifdef HAVE_TZSET |
2164 | set_time_zone_rule (dump_tz); | |
2165 | #ifndef LOCALTIME_CACHE | |
2166 | /* Force a tz reload, since set_time_zone_rule doesn't. */ | |
2167 | tzset (); | |
2168 | #endif | |
2169 | #endif | |
2170 | ||
f927c5ae | 2171 | fflush (stdout); |
7db35a48 | 2172 | /* Tell malloc where start of impure now is. */ |
f927c5ae JB |
2173 | /* Also arrange for warnings when nearly out of space. */ |
2174 | #ifndef SYSTEM_MALLOC | |
cc5f52cb RS |
2175 | #ifndef WINDOWSNT |
2176 | /* On Windows, this was done before dumping, and that once suffices. | |
2177 | Meanwhile, my_edata is not valid on Windows. */ | |
c339dc2e PE |
2178 | { |
2179 | extern char my_edata[]; | |
2180 | memory_warnings (my_edata, malloc_warning); | |
2181 | } | |
cc5f52cb | 2182 | #endif /* not WINDOWSNT */ |
ae9e757a | 2183 | #if defined (HAVE_PTHREAD) && !defined SYNC_INPUT |
aa477689 JD |
2184 | /* Pthread may call malloc before main, and then we will get an endless |
2185 | loop, because pthread_self (see alloc.c) calls malloc the first time | |
2186 | it is called on some systems. */ | |
2187 | reset_malloc_hooks (); | |
2188 | #endif | |
dd5ecd6b | 2189 | #endif /* not SYSTEM_MALLOC */ |
15aaf1b5 RS |
2190 | #ifdef DOUG_LEA_MALLOC |
2191 | malloc_state_ptr = malloc_get_state (); | |
f927c5ae | 2192 | #endif |
2b7377ca | 2193 | |
a74c5ec1 | 2194 | #ifdef USE_MMAP_FOR_BUFFERS |
2b7377ca GM |
2195 | mmap_set_vars (0); |
2196 | #endif | |
42a5b22f | 2197 | unexec (SSDATA (filename), !NILP (symfile) ? SSDATA (symfile) : 0); |
a74c5ec1 | 2198 | #ifdef USE_MMAP_FOR_BUFFERS |
2b7377ca GM |
2199 | mmap_set_vars (1); |
2200 | #endif | |
15aaf1b5 RS |
2201 | #ifdef DOUG_LEA_MALLOC |
2202 | free (malloc_state_ptr); | |
2203 | #endif | |
f927c5ae JB |
2204 | |
2205 | Vpurify_flag = tem; | |
2206 | ||
1b7ddf4f | 2207 | return unbind_to (count, Qnil); |
f927c5ae JB |
2208 | } |
2209 | ||
f927c5ae JB |
2210 | #endif /* not CANNOT_DUMP */ |
2211 | \f | |
68c45bf0 PE |
2212 | #if HAVE_SETLOCALE |
2213 | /* Recover from setlocale (LC_ALL, ""). */ | |
2214 | void | |
d5a3eaaf | 2215 | fixup_locale (void) |
68c45bf0 | 2216 | { |
68c45bf0 PE |
2217 | /* The Emacs Lisp reader needs LC_NUMERIC to be "C", |
2218 | so that numbers are read and printed properly for Emacs Lisp. */ | |
2219 | setlocale (LC_NUMERIC, "C"); | |
68c45bf0 PE |
2220 | } |
2221 | ||
0c8559bb PE |
2222 | /* Set system locale CATEGORY, with previous locale *PLOCALE, to |
2223 | DESIRED_LOCALE. */ | |
68c45bf0 | 2224 | static void |
dd4c5104 | 2225 | synchronize_locale (int category, Lisp_Object *plocale, Lisp_Object desired_locale) |
68c45bf0 | 2226 | { |
0c8559bb PE |
2227 | if (! EQ (*plocale, desired_locale)) |
2228 | { | |
2229 | *plocale = desired_locale; | |
2230 | setlocale (category, (STRINGP (desired_locale) | |
51b59d79 | 2231 | ? SSDATA (desired_locale) |
0c8559bb PE |
2232 | : "")); |
2233 | } | |
68c45bf0 PE |
2234 | } |
2235 | ||
ca9c0567 | 2236 | /* Set system time locale to match Vsystem_time_locale, if possible. */ |
68c45bf0 | 2237 | void |
d5a3eaaf | 2238 | synchronize_system_time_locale (void) |
68c45bf0 | 2239 | { |
ca9c0567 PE |
2240 | synchronize_locale (LC_TIME, &Vprevious_system_time_locale, |
2241 | Vsystem_time_locale); | |
68c45bf0 PE |
2242 | } |
2243 | ||
ca9c0567 PE |
2244 | /* Set system messages locale to match Vsystem_messages_locale, if |
2245 | possible. */ | |
68c45bf0 | 2246 | void |
d5a3eaaf | 2247 | synchronize_system_messages_locale (void) |
68c45bf0 PE |
2248 | { |
2249 | #ifdef LC_MESSAGES | |
ca9c0567 PE |
2250 | synchronize_locale (LC_MESSAGES, &Vprevious_system_messages_locale, |
2251 | Vsystem_messages_locale); | |
68c45bf0 PE |
2252 | #endif |
2253 | } | |
2254 | #endif /* HAVE_SETLOCALE */ | |
2255 | \f | |
4b163808 | 2256 | #ifndef SEPCHAR |
f927c5ae JB |
2257 | #define SEPCHAR ':' |
2258 | #endif | |
2259 | ||
2260 | Lisp_Object | |
a8fe7202 | 2261 | decode_env_path (const char *evarname, const char *defalt) |
f927c5ae | 2262 | { |
a8fe7202 | 2263 | const char *path, *p; |
213d0b1f | 2264 | Lisp_Object lpath, element, tem; |
f927c5ae | 2265 | |
2447c626 JB |
2266 | /* It's okay to use getenv here, because this function is only used |
2267 | to initialize variables when Emacs starts up, and isn't called | |
2268 | after that. */ | |
e065a56e | 2269 | if (evarname != 0) |
a8fe7202 | 2270 | path = getenv (evarname); |
e065a56e JB |
2271 | else |
2272 | path = 0; | |
f927c5ae JB |
2273 | if (!path) |
2274 | path = defalt; | |
6a30e6d6 RS |
2275 | #ifdef DOS_NT |
2276 | /* Ensure values from the environment use the proper directory separator. */ | |
2277 | if (path) | |
2278 | { | |
a8fe7202 AS |
2279 | char *path_copy = alloca (strlen (path) + 1); |
2280 | strcpy (path_copy, path); | |
2281 | dostounix_filename (path_copy); | |
2282 | path = path_copy; | |
6a30e6d6 RS |
2283 | } |
2284 | #endif | |
f927c5ae JB |
2285 | lpath = Qnil; |
2286 | while (1) | |
2287 | { | |
8966b757 | 2288 | p = strchr (path, SEPCHAR); |
a8fe7202 AS |
2289 | if (!p) |
2290 | p = path + strlen (path); | |
213d0b1f RS |
2291 | element = (p - path ? make_string (path, p - path) |
2292 | : build_string (".")); | |
2293 | ||
2294 | /* Add /: to the front of the name | |
2295 | if it would otherwise be treated as magic. */ | |
2296 | tem = Ffind_file_name_handler (element, Qt); | |
ca3df2d5 RS |
2297 | |
2298 | /* However, if the handler says "I'm safe", | |
2299 | don't bother adding /:. */ | |
2300 | if (SYMBOLP (tem)) | |
2301 | { | |
2302 | Lisp_Object prop; | |
2303 | prop = Fget (tem, intern ("safe-magic")); | |
2304 | if (! NILP (prop)) | |
2305 | tem = Qnil; | |
2306 | } | |
2307 | ||
213d0b1f RS |
2308 | if (! NILP (tem)) |
2309 | element = concat2 (build_string ("/:"), element); | |
2310 | ||
2311 | lpath = Fcons (element, lpath); | |
f927c5ae JB |
2312 | if (*p) |
2313 | path = p + 1; | |
2314 | else | |
2315 | break; | |
2316 | } | |
2317 | return Fnreverse (lpath); | |
2318 | } | |
2319 | ||
eab2ee89 | 2320 | DEFUN ("daemonp", Fdaemonp, Sdaemonp, 0, 0, 0, |
4ff029f6 DN |
2321 | doc: /* Return non-nil if the current emacs process is a daemon. |
2322 | If the daemon was given a name argument, return that name. */) | |
5842a27b | 2323 | (void) |
eab2ee89 | 2324 | { |
fc012771 | 2325 | if (IS_DAEMON) |
4ff029f6 DN |
2326 | if (daemon_name) |
2327 | return build_string (daemon_name); | |
2328 | else | |
2329 | return Qt; | |
2330 | else | |
2331 | return Qnil; | |
eab2ee89 DN |
2332 | } |
2333 | ||
5790ef40 | 2334 | DEFUN ("daemon-initialized", Fdaemon_initialized, Sdaemon_initialized, 0, 0, 0, |
fc012771 SM |
2335 | doc: /* Mark the Emacs daemon as being initialized. |
2336 | This finishes the daemonization process by doing the other half of detaching | |
2337 | from the parent process and its tty file descriptors. */) | |
5842a27b | 2338 | (void) |
5790ef40 DN |
2339 | { |
2340 | int nfd; | |
dc1ca6a8 | 2341 | int err = 0; |
5790ef40 | 2342 | |
fc012771 | 2343 | if (!IS_DAEMON) |
5790ef40 DN |
2344 | error ("This function can only be called if emacs is run as a daemon"); |
2345 | ||
2346 | if (daemon_pipe[1] < 0) | |
2347 | error ("The daemon has already been initialized"); | |
2348 | ||
2349 | if (NILP (Vafter_init_time)) | |
2350 | error ("This function can only be called after loading the init files"); | |
2351 | ||
2352 | /* Get rid of stdin, stdout and stderr. */ | |
29dadb54 | 2353 | nfd = open ("/dev/null", O_RDWR); |
dc1ca6a8 PE |
2354 | err |= nfd < 0; |
2355 | err |= dup2 (nfd, 0) < 0; | |
2356 | err |= dup2 (nfd, 1) < 0; | |
2357 | err |= dup2 (nfd, 2) < 0; | |
2358 | err |= close (nfd) != 0; | |
5790ef40 | 2359 | |
fc012771 SM |
2360 | /* Closing the pipe will notify the parent that it can exit. |
2361 | FIXME: In case some other process inherited the pipe, closing it here | |
2362 | won't notify the parent because it's still open elsewhere, so we | |
2363 | additionally send a byte, just to make sure the parent really exits. | |
2364 | Instead, we should probably close the pipe in start-process and | |
2365 | call-process to make sure the pipe is never inherited by | |
2366 | subprocesses. */ | |
dc1ca6a8 PE |
2367 | err |= write (daemon_pipe[1], "\n", 1) < 0; |
2368 | err |= close (daemon_pipe[1]) != 0; | |
5790ef40 DN |
2369 | /* Set it to an invalid value so we know we've already run this function. */ |
2370 | daemon_pipe[1] = -1; | |
dc1ca6a8 PE |
2371 | |
2372 | if (err) | |
2373 | error ("I/O error during daemon initialization"); | |
5790ef40 DN |
2374 | return Qt; |
2375 | } | |
2376 | ||
dfcf069d | 2377 | void |
d5a3eaaf | 2378 | syms_of_emacs (void) |
f927c5ae | 2379 | { |
cd3520a4 JB |
2380 | DEFSYM (Qfile_name_handler_alist, "file-name-handler-alist"); |
2381 | DEFSYM (Qrisky_local_variable, "risky-local-variable"); | |
213d0b1f | 2382 | |
83591e66 | 2383 | #ifndef CANNOT_DUMP |
f927c5ae JB |
2384 | defsubr (&Sdump_emacs); |
2385 | #endif | |
2386 | ||
2387 | defsubr (&Skill_emacs); | |
2388 | ||
59653951 | 2389 | defsubr (&Sinvocation_name); |
ace40a69 | 2390 | defsubr (&Sinvocation_directory); |
eab2ee89 | 2391 | defsubr (&Sdaemonp); |
5790ef40 | 2392 | defsubr (&Sdaemon_initialized); |
59653951 | 2393 | |
29208e82 | 2394 | DEFVAR_LISP ("command-line-args", Vcommand_line_args, |
2a9d2ed6 RS |
2395 | doc: /* Args passed by shell to Emacs, as a list of strings. |
2396 | Many arguments are deleted from the list as they are processed. */); | |
f927c5ae | 2397 | |
29208e82 | 2398 | DEFVAR_LISP ("system-type", Vsystem_type, |
cf59a374 | 2399 | doc: /* The value is a symbol indicating the type of operating system you are using. |
40a8993a | 2400 | Special values: |
cf59a374 GM |
2401 | `gnu' compiled for a GNU Hurd system. |
2402 | `gnu/linux' compiled for a GNU/Linux system. | |
2403 | `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel. | |
2404 | `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...). | |
2405 | `ms-dos' compiled as an MS-DOS application. | |
2406 | `windows-nt' compiled as a native W32 application. | |
2407 | `cygwin' compiled using the Cygwin library. | |
bd6bc222 GM |
2408 | Anything else (in Emacs 24.1, the possibilities are: aix, berkeley-unix, |
2409 | hpux, irix, usg-unix-v) indicates some sort of Unix system. */); | |
d67b4f80 | 2410 | Vsystem_type = intern_c_string (SYSTEM_TYPE); |
60393507 | 2411 | /* The above values are from SYSTEM_TYPE in include files under src/s. */ |
f927c5ae | 2412 | |
29208e82 | 2413 | DEFVAR_LISP ("system-configuration", Vsystem_configuration, |
7db35a48 PJ |
2414 | doc: /* Value is string indicating configuration Emacs was built for. |
2415 | On MS-Windows, the value reflects the OS flavor and version on which | |
2416 | Emacs is running. */); | |
f7511647 | 2417 | Vsystem_configuration = build_string (EMACS_CONFIGURATION); |
271c7b7c | 2418 | |
29208e82 | 2419 | DEFVAR_LISP ("system-configuration-options", Vsystem_configuration_options, |
7db35a48 | 2420 | doc: /* String containing the configuration options Emacs was built with. */); |
f0fc0b1a KH |
2421 | Vsystem_configuration_options = build_string (EMACS_CONFIG_OPTIONS); |
2422 | ||
29208e82 | 2423 | DEFVAR_BOOL ("noninteractive", noninteractive1, |
7db35a48 | 2424 | doc: /* Non-nil means Emacs is running without interactive terminal. */); |
e5d77022 | 2425 | |
29208e82 | 2426 | DEFVAR_LISP ("kill-emacs-hook", Vkill_emacs_hook, |
e79beb56 | 2427 | doc: /* Hook to be run when `kill-emacs' is called. |
d77b70e5 | 2428 | Since `kill-emacs' may be invoked when the terminal is disconnected (or |
7db35a48 PJ |
2429 | in other similar situations), functions placed on this hook should not |
2430 | expect to be able to interact with the user. To ask for confirmation, | |
d77b70e5 MR |
2431 | see `kill-emacs-query-functions' instead. |
2432 | ||
9c524fcb GM |
2433 | Before Emacs 24.1, the hook was not run in batch mode, i.e., if |
2434 | `noninteractive' was non-nil. */); | |
edc8ae07 | 2435 | Vkill_emacs_hook = Qnil; |
3005da00 | 2436 | |
29208e82 | 2437 | DEFVAR_LISP ("path-separator", Vpath_separator, |
c7ed3276 EZ |
2438 | doc: /* String containing the character that separates directories in |
2439 | search paths, such as PATH and other similar environment variables. */); | |
074a066b GV |
2440 | { |
2441 | char c = SEPCHAR; | |
2442 | Vpath_separator = make_string (&c, 1); | |
2443 | } | |
59653951 | 2444 | |
29208e82 | 2445 | DEFVAR_LISP ("invocation-name", Vinvocation_name, |
7db35a48 PJ |
2446 | doc: /* The program name that was used to run Emacs. |
2447 | Any directory names are omitted. */); | |
f67de86f | 2448 | |
29208e82 | 2449 | DEFVAR_LISP ("invocation-directory", Vinvocation_directory, |
7db35a48 PJ |
2450 | doc: /* The directory in which the Emacs executable was found, to run it. |
2451 | The value is nil if that directory's name is not known. */); | |
f67de86f | 2452 | |
29208e82 | 2453 | DEFVAR_LISP ("installation-directory", Vinstallation_directory, |
7db35a48 | 2454 | doc: /* A directory within which to look for the `lib-src' and `etc' directories. |
e58a672c RS |
2455 | This is non-nil when we can't find those directories in their standard |
2456 | installed locations, but we can find them near where the Emacs executable | |
2457 | was found. */); | |
07f4d123 | 2458 | Vinstallation_directory = Qnil; |
68c45bf0 | 2459 | |
29208e82 | 2460 | DEFVAR_LISP ("system-messages-locale", Vsystem_messages_locale, |
7db35a48 | 2461 | doc: /* System locale for messages. */); |
ca9c0567 | 2462 | Vsystem_messages_locale = Qnil; |
68c45bf0 | 2463 | |
ca9c0567 | 2464 | DEFVAR_LISP ("previous-system-messages-locale", |
29208e82 | 2465 | Vprevious_system_messages_locale, |
7db35a48 | 2466 | doc: /* Most recently used system locale for messages. */); |
ca9c0567 | 2467 | Vprevious_system_messages_locale = Qnil; |
68c45bf0 | 2468 | |
29208e82 | 2469 | DEFVAR_LISP ("system-time-locale", Vsystem_time_locale, |
7db35a48 | 2470 | doc: /* System locale for time. */); |
ca9c0567 | 2471 | Vsystem_time_locale = Qnil; |
68c45bf0 | 2472 | |
29208e82 | 2473 | DEFVAR_LISP ("previous-system-time-locale", Vprevious_system_time_locale, |
7db35a48 | 2474 | doc: /* Most recently used system locale for time. */); |
ca9c0567 | 2475 | Vprevious_system_time_locale = Qnil; |
90503d96 | 2476 | |
29208e82 | 2477 | DEFVAR_LISP ("before-init-time", Vbefore_init_time, |
90503d96 CY |
2478 | doc: /* Value of `current-time' before Emacs begins initialization. */); |
2479 | Vbefore_init_time = Qnil; | |
2480 | ||
29208e82 | 2481 | DEFVAR_LISP ("after-init-time", Vafter_init_time, |
90503d96 CY |
2482 | doc: /* Value of `current-time' after loading the init files. |
2483 | This is nil during initialization. */); | |
2484 | Vafter_init_time = Qnil; | |
fc012771 | 2485 | |
29208e82 | 2486 | DEFVAR_BOOL ("inhibit-x-resources", inhibit_x_resources, |
9b68317c | 2487 | doc: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */); |
8686ac71 JB |
2488 | inhibit_x_resources = 0; |
2489 | ||
29208e82 | 2490 | DEFVAR_LISP ("emacs-copyright", Vemacs_copyright, |
8c5ff6dd KR |
2491 | doc: /* Short copyright string for this version of Emacs. */); |
2492 | Vemacs_copyright = build_string (emacs_copyright); | |
2493 | ||
29208e82 | 2494 | DEFVAR_LISP ("emacs-version", Vemacs_version, |
8c5ff6dd KR |
2495 | doc: /* Version numbers of this version of Emacs. */); |
2496 | Vemacs_version = build_string (emacs_version); | |
2497 | ||
29208e82 | 2498 | DEFVAR_LISP ("dynamic-library-alist", Vdynamic_library_alist, |
2e288d54 JB |
2499 | doc: /* Alist of dynamic libraries vs external files implementing them. |
2500 | Each element is a list (LIBRARY FILE...), where the car is a symbol | |
2501 | representing a supported external library, and the rest are strings giving | |
2502 | alternate filenames for that library. | |
2503 | ||
2504 | Emacs tries to load the library from the files in the order they appear on | |
2505 | the list; if none is loaded, the running session of Emacs won't have access | |
2506 | to that library. | |
2507 | ||
2508 | Note that image types `pbm' and `xbm' do not need entries in this variable | |
2509 | because they do not depend on external libraries and are always available. | |
2510 | ||
2511 | Also note that this is not a generic facility for accessing external | |
2512 | libraries; only those already known by Emacs will be loaded. */); | |
2513 | Vdynamic_library_alist = Qnil; | |
2514 | Fput (intern_c_string ("dynamic-library-alist"), Qrisky_local_variable, Qt); | |
2515 | ||
fc012771 SM |
2516 | /* Make sure IS_DAEMON starts up as false. */ |
2517 | daemon_pipe[1] = 0; | |
f927c5ae | 2518 | } |