emacs.c 63.2 KB
Newer Older
Jim Blandy's avatar
Jim Blandy committed
1
/* Fully extensible Emacs, running on Unix, intended for GNU.
2 3
   Copyright (C) 1985,86,87,93,94,95,97,98,1999,2001
      Free Software Foundation, Inc.
Jim Blandy's avatar
Jim Blandy committed
4 5 6 7 8

This file is part of GNU Emacs.

GNU Emacs is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
9
the Free Software Foundation; either version 2, or (at your option)
Jim Blandy's avatar
Jim Blandy committed
10 11 12 13 14 15 16 17 18
any later version.

GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING.  If not, write to
Richard M. Stallman's avatar
Richard M. Stallman committed
19 20
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */
Jim Blandy's avatar
Jim Blandy committed
21 22


23
#include <config.h>
Jim Blandy's avatar
Jim Blandy committed
24 25 26 27 28 29 30 31 32 33 34
#include <signal.h>
#include <errno.h>
#include <stdio.h>

#include <sys/types.h>
#include <sys/file.h>

#ifdef VMS
#include <ssdef.h>
#endif

35 36 37 38
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif

39
#ifdef BSD_SYSTEM
Jim Blandy's avatar
Jim Blandy committed
40 41 42 43 44
#include <sys/ioctl.h>
#endif

#include "lisp.h"
#include "commands.h"
Joseph Arceneaux's avatar
Joseph Arceneaux committed
45
#include "intervals.h"
Richard M. Stallman's avatar
Richard M. Stallman committed
46
#include "buffer.h"
Jim Blandy's avatar
Jim Blandy committed
47

48
#include "systty.h"
Richard M. Stallman's avatar
Richard M. Stallman committed
49
#include "blockinput.h"
50
#include "syssignal.h"
Richard M. Stallman's avatar
Richard M. Stallman committed
51
#include "process.h"
52
#include "termhooks.h"
Andreas Schwab's avatar
Andreas Schwab committed
53
#include "keyboard.h"
Stefan Monnier's avatar
Stefan Monnier committed
54
#include "keymap.h"
Jim Blandy's avatar
Jim Blandy committed
55

56 57 58 59
#ifdef HAVE_SETLOCALE
#include <locale.h>
#endif

60 61 62 63 64
#ifdef HAVE_SETRLIMIT
#include <sys/time.h>
#include <sys/resource.h>
#endif

Jim Blandy's avatar
Jim Blandy committed
65 66 67 68
#ifndef O_RDWR
#define O_RDWR 2
#endif

69
#ifdef HAVE_SETPGID
70
#if !defined (USG) || defined (BSD_PGRPS)
71
#undef setpgrp
72 73
#define setpgrp setpgid
#endif
74
#endif
75

76 77
extern void malloc_warning P_ ((char *));
extern void set_time_zone_rule P_ ((char *));
Gerd Moellmann's avatar
Gerd Moellmann committed
78 79 80
#ifdef HAVE_INDEX
extern char *index P_ ((const char *, int));
#endif
81

82 83 84 85 86 87 88 89 90 91
/* Make these values available in GDB, which doesn't see macros.  */

EMACS_INT gdb_valbits = VALBITS;
EMACS_INT gdb_gctypebits = GCTYPEBITS;
EMACS_INT gdb_emacs_intbits = sizeof (EMACS_INT) * BITS_PER_CHAR;
#ifdef DATA_SEG_BITS
EMACS_INT gdb_data_seg_bits = DATA_SEG_BITS;
#else
EMACS_INT  gdb_data_seg_bits = 0;
#endif
Gerd Moellmann's avatar
Gerd Moellmann committed
92
EMACS_INT PVEC_FLAG = PSEUDOVECTOR_FLAG;
93

Pavel Janík's avatar
Pavel Janík committed
94
/* Command line args from shell, as list of strings.  */
Jim Blandy's avatar
Jim Blandy committed
95 96
Lisp_Object Vcommand_line_args;

97 98 99 100
/* The name under which Emacs was invoked, with any leading directory
   names discarded.  */
Lisp_Object Vinvocation_name;

101 102 103
/* The directory name from which Emacs was invoked.  */
Lisp_Object Vinvocation_directory;

104 105 106 107
/* The directory name in which to find subdirs such as lisp and etc.
   nil means get them only from PATH_LOADSEARCH.  */
Lisp_Object Vinstallation_directory;

Jim Blandy's avatar
Jim Blandy committed
108 109 110
/* Hook run by `kill-emacs' before it does really anything.  */
Lisp_Object Vkill_emacs_hook;

Stefan Monnier's avatar
Stefan Monnier committed
111 112 113
/* An empty lisp string.  To avoid having to build any other.  */
Lisp_Object empty_string;

114
#ifdef SIGUSR1
Pavel Janík's avatar
Pavel Janík committed
115
/* Hooks for signal USR1 and USR2 handling.  */
116 117 118
Lisp_Object Vsignal_USR1_hook;
#ifdef SIGUSR2
Lisp_Object Vsignal_USR2_hook;
Pavel Janík's avatar
Pavel Janík committed
119
#endif
120 121
#endif

122 123 124
/* Search path separator.  */
Lisp_Object Vpath_separator;

Jim Blandy's avatar
Jim Blandy committed
125 126 127 128 129
/* Set nonzero after Emacs has started up the first time.
  Prevents reinitialization of the Lisp world and keymaps
  on subsequent starts.  */
int initialized;

130 131 132 133 134 135 136 137
#ifdef DOUG_LEA_MALLOC
/* Preserves a pointer to the memory allocated that copies that
   static data inside glibc's malloc.  */
void *malloc_state_ptr;
/* From glibc, a routine that returns a copy of the malloc internal state.  */
extern void *malloc_get_state ();
/* From glibc, a routine that overwrites the malloc internal state.  */
extern void malloc_set_state ();
138 139 140
/* Non-zero if the MALLOC_CHECK_ enviroment variable was set while
   dumping.  Used to work around a bug in glibc's malloc.  */
int malloc_using_checking;
141 142
#endif

143
/* Variable whose value is symbol giving operating system type.  */
Jim Blandy's avatar
Jim Blandy committed
144
Lisp_Object Vsystem_type;
145 146 147

/* Variable whose value is string giving configuration built for.  */
Lisp_Object Vsystem_configuration;
148 149 150 151 152

/* Variable whose value is string giving configuration options,
   for use when reporting bugs.  */
Lisp_Object Vsystem_configuration_options;

153 154
Lisp_Object Qfile_name_handler_alist;

155
/* Current and previous system locales for messages and time.  */
156 157 158 159
Lisp_Object Vsystem_messages_locale;
Lisp_Object Vprevious_system_messages_locale;
Lisp_Object Vsystem_time_locale;
Lisp_Object Vprevious_system_time_locale;
160

Jim Blandy's avatar
Jim Blandy committed
161
/* If non-zero, emacs should not attempt to use an window-specific code,
Pavel Janík's avatar
Pavel Janík committed
162
   but instead should use the virtual terminal under which it was started.  */
Jim Blandy's avatar
Jim Blandy committed
163 164
int inhibit_window_system;

165 166
/* If nonzero, set Emacs to run at this priority.  This is also used
   in child_setup and sys_suspend to make sure subshells run at normal
Pavel Janík's avatar
Pavel Janík committed
167
   priority; those functions have their own extern declaration.  */
168
EMACS_INT emacs_priority;
169

Pavel Janík's avatar
Pavel Janík committed
170 171
/* If non-zero, a filter or a sentinel is running.  Tested to save the match
   data on the first attempt to change it inside asynchronous code.  */
172 173
int running_asynch_code;

174
#ifdef BSD_PGRPS
175 176 177 178
/* See sysdep.c.  */
extern int inherited_pgroup;
#endif

Jim Blandy's avatar
Jim Blandy committed
179
#ifdef HAVE_X_WINDOWS
Pavel Janík's avatar
Pavel Janík committed
180
/* If non-zero, -d was specified, meaning we're using some window system.  */
Jim Blandy's avatar
Jim Blandy committed
181 182 183 184 185 186 187
int display_arg;
#endif

/* An address near the bottom of the stack.
   Tells GC how to save a copy of the stack.  */
char *stack_bottom;

188
#ifdef HAVE_WINDOW_SYSTEM
Jim Blandy's avatar
Jim Blandy committed
189
extern Lisp_Object Vwindow_system;
190
#endif /* HAVE_WINDOW_SYSTEM */
Jim Blandy's avatar
Jim Blandy committed
191

192 193
extern Lisp_Object Vauto_save_list_file_name;

Jim Blandy's avatar
Jim Blandy committed
194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209
#ifdef USG_SHARED_LIBRARIES
/* If nonzero, this is the place to put the end of the writable segment
   at startup.  */

unsigned int bss_end = 0;
#endif

/* Nonzero means running Emacs without interactive terminal.  */

int noninteractive;

/* Value of Lisp variable `noninteractive'.
   Normally same as C variable `noninteractive'
   but nothing terrible happens if user sets this one.  */

int noninteractive1;
210 211 212 213

/* Save argv and argc.  */
char **initial_argv;
int initial_argc;
214 215

static void sort_args ();
Andreas Schwab's avatar
Andreas Schwab committed
216
void syms_of_emacs ();
Gerd Moellmann's avatar
Gerd Moellmann committed
217

218
#define USAGE1 "\
Gerd Moellmann's avatar
Gerd Moellmann committed
219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236
Usage: %s [OPTION-OR-FILENAME]...\n\
\n\
Run Emacs, the extensible, customizable, self-documenting real-time\n\
display editor.  The recommended way to start Emacs for normal editing\n\
is with no options at all.\n\
\n\
Run M-x info RET m emacs RET m command arguments RET inside Emacs to\n\
read the main documentation for these command-line arguments.\n\
\n\
Initialization options:\n\
\n\
--batch			do not do interactive display; implies -q\n\
--debug-init		enable Emacs Lisp debugger during init file\n\
--help			display this help message and exit\n\
--multibyte, --no-unibyte   run Emacs in multibyte mode\n\
--no-init-file, -q	    load neither ~/.emacs nor default.el\n\
--no-shared-memory, -nl	    do not use shared memory\n\
--no-site-file		    do not load site-start.el\n\
237
--no-window-system, -nw	    don't communicate with X, ignoring $DISPLAY\n\
Gerd Moellmann's avatar
Gerd Moellmann committed
238 239 240 241 242 243 244 245
--terminal, -t DEVICE	    use DEVICE for terminal I/O\n\
--unibyte, --no-multibyte   run Emacs in unibyte mode\n\
--user, -u USER		load ~USER/.emacs instead of your own\n\
--version		display version information and exit\n\
\n\
Action options:\n\
\n\
FILE			visit FILE using find-file\n\
246 247 248
+LINE FILE		visit FILE using find-file, then go to line LINE\n\
+LINE:COLUMN FILE	visit FILE using find-file, then go to line LINE,\n\
			    column COLUMN\n\
Gerd Moellmann's avatar
Gerd Moellmann committed
249 250 251 252 253 254 255 256 257
--directory, -L DIR	add DIR to variable load-path\n\
--eval EXPR		evaluate Emacs Lisp expression EXPR\n\
--execute EXPR		evaluate Emacs Lisp expression EXPR\n\
--find-file FILE	visit FILE\n\
--funcall, -f FUNC	call Emacs function FUNC with no arguments\n\
--insert FILE		insert contents of FILE into current buffer\n\
--kill			exit without asking for confirmation\n\
--load, -l FILE		load FILE of Emacs Lisp code using the load function\n\
--visit FILE		visit FILE\n\
258 259 260
\n"

#define USAGE2 "\
261
Display options:\n\
Gerd Moellmann's avatar
Gerd Moellmann committed
262 263 264 265
\n\
--background-color, -bg COLOR	window background color\n\
--border-color, -bd COLOR	main border color\n\
--border-width, -bw WIDTH	width of main border\n\
266 267 268 269
--color=MODE			color mode for character terminals;\n\
				MODE defaults to `auto', and can also\n\
				be `never', `auto', `always',\n\
				or a mode name like `ansi8'\n\
Gerd Moellmann's avatar
Gerd Moellmann committed
270 271
--cursor-color, -cr COLOR	color of the Emacs cursor indicating point\n\
--display, -d DISPLAY		use X server DISPLAY\n\
Pavel Janík's avatar
Pavel Janík committed
272
--font, -fn FONT		default font; must be fixed-width\n\
Gerd Moellmann's avatar
Gerd Moellmann committed
273
--foreground-color, -fg COLOR	window foreground color\n\
274 275 276
--fullscreen, -fs	        make first frame fullscreen\n\
--fullwidth, -fw	        make the first frame wide as the screen\n\
--fullheight, -fh	        make the first frame high as the screen\n\
Gerd Moellmann's avatar
Gerd Moellmann committed
277 278 279 280
--geometry, -g GEOMETRY		window geometry\n\
--iconic			start Emacs in iconified state\n\
--icon-type, -i			use picture of gnu for Emacs icon\n\
--internal-border, -ib WIDTH	width between text and main border\n\
281
--line-spacing, -lsp PIXELS	additional space to put between lines\n\
Gerd Moellmann's avatar
Gerd Moellmann committed
282 283 284
--mouse-color, -ms COLOR 	mouse cursor color in Emacs window\n\
--name NAME			title of main Emacs window\n\
--reverse-video, -r, -rv	switch foreground and background\n\
Pavel Janík's avatar
Pavel Janík committed
285
--title, -T, -wn TITLE		title for Emacs windows\n\
Gerd Moellmann's avatar
Gerd Moellmann committed
286 287 288 289 290 291 292 293 294
--vertical-scroll-bars, -vb	enable vertical scroll bars\n\
--xrm XRESOURCES		set additional X resources\n\
\n\
You can generally also specify long option names with a single -; for\n\
example, -batch as well as --batch.  You can use any unambiguous\n\
abbreviation for a --option.\n\
\n\
Various environment variables and window system resources also affect\n\
Emacs' operation.  See the main documentation.\n\
295 296 297 298
\n"

#define USAGE3 "\
Report bugs to %s.  First, please see the Bugs\n\
Gerd Moellmann's avatar
Gerd Moellmann committed
299 300
section of the Emacs manual or the file BUGS.\n"

Jim Blandy's avatar
Jim Blandy committed
301

Pavel Janík's avatar
Pavel Janík committed
302
/* Signal code for the fatal signal that was received.  */
Jim Blandy's avatar
Jim Blandy committed
303 304
int fatal_error_code;

Pavel Janík's avatar
Pavel Janík committed
305
/* Nonzero if handling a fatal error already.  */
Jim Blandy's avatar
Jim Blandy committed
306 307
int fatal_error_in_progress;

Pavel Janík's avatar
Pavel Janík committed
308
/* If non-null, call this function from fatal_error_signal before
309 310 311 312 313
   committing suicide.  */

void (*fatal_error_signal_hook) P_ ((void));


314 315 316 317 318
#ifdef SIGUSR1
SIGTYPE
handle_USR1_signal (sig)
     int sig;
{
319 320
  struct input_event buf;

321
  bzero (&buf, sizeof buf);
322
  buf.kind = USER_SIGNAL_EVENT;
323
  buf.frame_or_window = selected_frame;
324 325

  kbd_buffer_store_event (&buf);
326
}
327
#endif /* SIGUSR1 */
Richard M. Stallman's avatar
Richard M. Stallman committed
328

329 330 331 332 333
#ifdef SIGUSR2
SIGTYPE
handle_USR2_signal (sig)
     int sig;
{
334 335
  struct input_event buf;

336
  bzero (&buf, sizeof buf);
337
  buf.kind = USER_SIGNAL_EVENT;
338
  buf.code = 1;
339
  buf.frame_or_window = selected_frame;
340 341

  kbd_buffer_store_event (&buf);
342
}
343
#endif /* SIGUSR2 */
344

Pavel Janík's avatar
Pavel Janík committed
345
/* Handle bus errors, invalid instruction, etc.  */
Jim Blandy's avatar
Jim Blandy committed
346
SIGTYPE
Jim Blandy's avatar
Jim Blandy committed
347 348 349 350 351 352
fatal_error_signal (sig)
     int sig;
{
  fatal_error_code = sig;
  signal (sig, SIG_DFL);

353 354
  TOTALLY_UNBLOCK_INPUT;

Jim Blandy's avatar
Jim Blandy committed
355
  /* If fatal error occurs in code below, avoid infinite recursion.  */
356 357 358
  if (! fatal_error_in_progress)
    {
      fatal_error_in_progress = 1;
Jim Blandy's avatar
Jim Blandy committed
359

360
      shut_down_emacs (sig, 0, Qnil);
361
    }
Jim Blandy's avatar
Jim Blandy committed
362 363 364 365

#ifdef VMS
  LIB$STOP (SS$_ABORT);
#else
366 367 368 369
  /* Signal the same code; this time it will really be fatal.
     Remember that since we're in a signal handler, the signal we're
     going to send is probably blocked, so we have to unblock it if we
     want to really receive it.  */
370
#ifndef MSDOS
371
  sigunblock (sigmask (fatal_error_code));
372
#endif
373 374 375

  if (fatal_error_signal_hook)
    fatal_error_signal_hook ();
Pavel Janík's avatar
Pavel Janík committed
376

Jim Blandy's avatar
Jim Blandy committed
377 378 379
  kill (getpid (), fatal_error_code);
#endif /* not VMS */
}
380 381 382

#ifdef SIGDANGER

Richard M. Stallman's avatar
Richard M. Stallman committed
383
/* Handler for SIGDANGER.  */
384 385 386 387 388 389 390
SIGTYPE
memory_warning_signal (sig)
     int sig;
{
  signal (sig, memory_warning_signal);

  malloc_warning ("Operating system warns that virtual memory is running low.\n");
391 392 393

  /* It might be unsafe to call do_auto_save now.  */
  force_auto_save_soon ();
394 395
}
#endif
Richard M. Stallman's avatar
Richard M. Stallman committed
396 397

/* We define abort, rather than using it from the library,
Karl Heuer's avatar
Karl Heuer committed
398
   so that GDB can return from a breakpoint here.
Pavel Janík's avatar
Pavel Janík committed
399
   MSDOS has its own definition in msdos.c.  */
Richard M. Stallman's avatar
Richard M. Stallman committed
400

401
#if ! defined (DOS_NT) && ! defined (NO_ABORT)
402 403 404 405 406 407

#ifndef ABORT_RETURN_TYPE
#define ABORT_RETURN_TYPE void
#endif

ABORT_RETURN_TYPE
Richard M. Stallman's avatar
Richard M. Stallman committed
408 409 410
abort ()
{
  kill (getpid (), SIGABRT);
411 412
  /* This shouldn't be executed, but it prevents a warning.  */
  exit (1);
Richard M. Stallman's avatar
Richard M. Stallman committed
413
}
Karl Heuer's avatar
Karl Heuer committed
414
#endif
Richard M. Stallman's avatar
Richard M. Stallman committed
415

Jim Blandy's avatar
Jim Blandy committed
416

Pavel Janík's avatar
Pavel Janík committed
417
/* Code for dealing with Lisp access to the Unix command line.  */
Jim Blandy's avatar
Jim Blandy committed
418

Andreas Schwab's avatar
Andreas Schwab committed
419
static void
Jim Blandy's avatar
Jim Blandy committed
420 421 422 423 424 425
init_cmdargs (argc, argv, skip_args)
     int argc;
     char **argv;
     int skip_args;
{
  register int i;
426 427 428
  Lisp_Object name, dir, tem;
  int count = specpdl_ptr - specpdl;
  Lisp_Object raw_name;
Jim Blandy's avatar
Jim Blandy committed
429

430 431 432
  initial_argv = argv;
  initial_argc = argc;

433 434 435 436 437 438 439 440 441 442 443
  raw_name = build_string (argv[0]);

  /* Add /: to the front of the name
     if it would otherwise be treated as magic.  */
  tem = Ffind_file_name_handler (raw_name, Qt);
  if (! NILP (tem))
    raw_name = concat2 (build_string ("/:"), raw_name);

  Vinvocation_name = Ffile_name_nondirectory (raw_name);
  Vinvocation_directory = Ffile_name_directory (raw_name);

444 445 446 447 448 449
  /* If we got no directory in argv[0], search PATH to find where
     Emacs actually came from.  */
  if (NILP (Vinvocation_directory))
    {
      Lisp_Object found;
      int yes = openp (Vexec_path, Vinvocation_name,
Stefan Monnier's avatar
Stefan Monnier committed
450
		       Vexec_suffixes, &found, 1);
451
      if (yes == 1)
452 453 454 455 456 457 458 459
	{
	  /* Add /: to the front of the name
	     if it would otherwise be treated as magic.  */
	  tem = Ffind_file_name_handler (found, Qt);
	  if (! NILP (tem))
	    found = concat2 (build_string ("/:"), found);
	  Vinvocation_directory = Ffile_name_directory (found);
	}
460
    }
461

462 463
  if (!NILP (Vinvocation_directory)
      && NILP (Ffile_name_absolute_p (Vinvocation_directory)))
464 465
    /* Emacs was started with relative path, like ./emacs.
       Make it absolute.  */
466 467
    Vinvocation_directory = Fexpand_file_name (Vinvocation_directory, Qnil);

468 469 470 471 472 473 474 475
  Vinstallation_directory = Qnil;

  if (!NILP (Vinvocation_directory))
    {
      dir = Vinvocation_directory;
      name = Fexpand_file_name (Vinvocation_name, dir);
      while (1)
	{
476
	  Lisp_Object tem, lib_src_exists;
477 478
	  Lisp_Object etc_exists, info_exists;

479 480 481 482 483
	  /* See if dir contains subdirs for use by Emacs.
	     Check for the ones that would exist in a build directory,
	     not including lisp and info.  */
	  tem = Fexpand_file_name (build_string ("lib-src"), dir);
	  lib_src_exists = Ffile_exists_p (tem);
484

485
#ifdef MSDOS
486 487 488 489 490
	  /* MSDOS installations frequently remove lib-src, but we still
	     must set installation-directory, or else info won't find
	     its files (it uses the value of installation-directory).  */
	  tem = Fexpand_file_name (build_string ("info"), dir);
	  info_exists = Ffile_exists_p (tem);
491 492 493
#else
	  info_exists = Qnil;
#endif
494 495

	  if (!NILP (lib_src_exists) || !NILP (info_exists))
496
	    {
497 498 499
	      tem = Fexpand_file_name (build_string ("etc"), dir);
	      etc_exists = Ffile_exists_p (tem);
	      if (!NILP (etc_exists))
500
		{
501 502 503
		  Vinstallation_directory
		    = Ffile_name_as_directory (dir);
		  break;
504 505 506 507
		}
	    }

	  /* See if dir's parent contains those subdirs.  */
508 509
	  tem = Fexpand_file_name (build_string ("../lib-src"), dir);
	  lib_src_exists = Ffile_exists_p (tem);
510

511 512 513

#ifdef MSDOS
	  /* See the MSDOS commentary above.  */
514 515
	  tem = Fexpand_file_name (build_string ("../info"), dir);
	  info_exists = Ffile_exists_p (tem);
516 517 518
#else
	  info_exists = Qnil;
#endif
519 520

	  if (!NILP (lib_src_exists) || !NILP (info_exists))
521
	    {
522 523 524
	      tem = Fexpand_file_name (build_string ("../etc"), dir);
	      etc_exists = Ffile_exists_p (tem);
	      if (!NILP (etc_exists))
525
		{
526 527 528 529
		  tem = Fexpand_file_name (build_string (".."), dir);
		  Vinstallation_directory
		    = Ffile_name_as_directory (tem);
		  break;
530 531 532 533 534 535 536 537
		}
	    }

	  /* If the Emacs executable is actually a link,
	     next try the dir that the link points into.  */
	  tem = Ffile_symlink_p (name);
	  if (!NILP (tem))
	    {
538
	      name = Fexpand_file_name (tem, dir);
539 540 541 542 543 544 545
	      dir = Ffile_name_directory (name);
	    }
	  else
	    break;
	}
    }

Jim Blandy's avatar
Jim Blandy committed
546 547 548 549 550 551 552 553
  Vcommand_line_args = Qnil;

  for (i = argc - 1; i >= 0; i--)
    {
      if (i == 0 || i > skip_args)
	Vcommand_line_args
	  = Fcons (build_string (argv[i]), Vcommand_line_args);
    }
554 555

  unbind_to (count, Qnil);
Jim Blandy's avatar
Jim Blandy committed
556
}
557 558

DEFUN ("invocation-name", Finvocation_name, Sinvocation_name, 0, 0, 0,
Pavel Janík's avatar
Pavel Janík committed
559 560 561
       doc: /* Return the program name that was used to run Emacs.
Any directory names are omitted.  */)
     ()
562 563 564 565
{
  return Fcopy_sequence (Vinvocation_name);
}

566
DEFUN ("invocation-directory", Finvocation_directory, Sinvocation_directory,
Pavel Janík's avatar
Pavel Janík committed
567 568 569
       0, 0, 0,
       doc: /* Return the directory name in which the Emacs executable was located.  */)
     ()
570 571 572 573
{
  return Fcopy_sequence (Vinvocation_directory);
}

Jim Blandy's avatar
Jim Blandy committed
574 575 576

#ifdef VMS
#ifdef LINK_CRTL_SHARE
577
#ifdef SHARABLE_LIB_BUG
Jim Blandy's avatar
Jim Blandy committed
578
extern noshare char **environ;
579
#endif /* SHARABLE_LIB_BUG */
Jim Blandy's avatar
Jim Blandy committed
580 581 582
#endif /* LINK_CRTL_SHARE */
#endif /* VMS */

583 584 585 586 587 588
#ifdef HAVE_TZSET
/* A valid but unlikely value for the TZ environment value.
   It is OK (though a bit slower) if the user actually chooses this value.  */
static char dump_tz[] = "UtC0";
#endif

589
#ifndef ORDINARY_LINK
590 591 592 593 594
/* We don't include crtbegin.o and crtend.o in the link,
   so these functions and variables might be missed.
   Provide dummy definitions to avoid error.
   (We don't have any real constructors or destructors.)  */
#ifdef __GNUC__
595
#ifndef GCC_CTORS_IN_LIBC
Andreas Schwab's avatar
Andreas Schwab committed
596
void __do_global_ctors ()
597
{}
Andreas Schwab's avatar
Andreas Schwab committed
598
void __do_global_ctors_aux ()
599
{}
Andreas Schwab's avatar
Andreas Schwab committed
600
void __do_global_dtors ()
601
{}
602
/* Linux has a bug in its library; avoid an error.  */
603
#ifndef GNU_LINUX
604
char * __CTOR_LIST__[2] = { (char *) (-1), 0 };
605
#endif
606
char * __DTOR_LIST__[2] = { (char *) (-1), 0 };
607
#endif /* GCC_CTORS_IN_LIBC */
Andreas Schwab's avatar
Andreas Schwab committed
608
void __main ()
609 610
{}
#endif /* __GNUC__ */
611
#endif /* ORDINARY_LINK */
612

Karl Heuer's avatar
Karl Heuer committed
613 614 615 616 617 618 619 620 621
/* Test whether the next argument in ARGV matches SSTR or a prefix of
   LSTR (at least MINLEN characters).  If so, then if VALPTR is non-null
   (the argument is supposed to have a value) store in *VALPTR either
   the next argument or the portion of this one after the equal sign.
   ARGV is read starting at position *SKIPPTR; this index is advanced
   by the number of arguments used.

   Too bad we can't just use getopt for all of this, but we don't have
   enough information to do it right.  */
622

Karl Heuer's avatar
Karl Heuer committed
623
static int
624
argmatch (argv, argc, sstr, lstr, minlen, valptr, skipptr)
Karl Heuer's avatar
Karl Heuer committed
625
     char **argv;
626
     int argc;
Karl Heuer's avatar
Karl Heuer committed
627 628 629 630 631 632
     char *sstr;
     char *lstr;
     int minlen;
     char **valptr;
     int *skipptr;
{
633
  char *p = NULL;
Karl Heuer's avatar
Karl Heuer committed
634
  int arglen;
635 636 637 638 639 640 641
  char *arg;

  /* Don't access argv[argc]; give up in advance.  */
  if (argc <= *skipptr + 1)
    return 0;

  arg = argv[*skipptr+1];
Karl Heuer's avatar
Karl Heuer committed
642 643 644 645 646 647 648 649 650 651 652 653 654 655 656
  if (arg == NULL)
    return 0;
  if (strcmp (arg, sstr) == 0)
    {
      if (valptr != NULL)
	{
	  *valptr = argv[*skipptr+2];
	  *skipptr += 2;
	}
      else
	*skipptr += 1;
      return 1;
    }
  arglen = (valptr != NULL && (p = index (arg, '=')) != NULL
	    ? p - arg : strlen (arg));
657
  if (lstr == 0 || arglen < minlen || strncmp (arg, lstr, arglen) != 0)
Karl Heuer's avatar
Karl Heuer committed
658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681
    return 0;
  else if (valptr == NULL)
    {
      *skipptr += 1;
      return 1;
    }
  else if (p != NULL)
    {
      *valptr = p+1;
      *skipptr += 1;
      return 1;
    }
  else if (argv[*skipptr+2] != NULL)
    {
      *valptr = argv[*skipptr+2];
      *skipptr += 2;
      return 1;
    }
  else
    {
      return 0;
    }
}

682
#ifdef DOUG_LEA_MALLOC
Jim Blandy's avatar
Jim Blandy committed
683

684 685 686 687 688 689 690
/* malloc can be invoked even before main (e.g. by the dynamic
   linker), so the dumped malloc state must be restored as early as
   possible using this special hook.  */

static void
malloc_initialize_hook ()
{
691
#ifndef USE_CRT_DLL
692
  extern char **environ;
693
#endif
694

695 696
  if (initialized)
    {
697 698 699
      if (!malloc_using_checking)
	/* Work around a bug in glibc's malloc.  MALLOC_CHECK_ must be
	   ignored if the heap to be restored was constructed without
700 701 702 703
	   malloc checking.  Can't use unsetenv, since that calls malloc.  */
	{
	  char **p;

704
	  for (p = environ; p && *p; p++)
705 706 707 708 709 710 711 712
	    if (strncmp (*p, "MALLOC_CHECK_=", 14) == 0)
	      {
		do
		  *p = p[1];
		while (*++p);
		break;
	      }
	}
713

714 715 716
      malloc_set_state (malloc_state_ptr);
      free (malloc_state_ptr);
    }
717 718
  else
    malloc_using_checking = getenv ("MALLOC_CHECK_") != NULL;
719 720 721 722 723 724
}

void (*__malloc_initialize_hook) () = malloc_initialize_hook;

#endif /* DOUG_LEA_MALLOC */

725 726 727 728 729 730 731

#define REPORT_EMACS_BUG_ADDRESS "bug-gnu-emacs@gnu.org"
#define REPORT_EMACS_BUG_PRETEST_ADDRESS "emacs-pretest-bug@gnu.org"

/* This function is used to determine an address to which bug report should
   be sent.  */

732 733
char *
bug_reporting_address ()
734
{
735
  int count = 0;
736 737 738 739 740 741 742 743 744 745 746
  Lisp_Object temp;
  char *string;

  temp = Fsymbol_value (intern ("emacs-version"));

  /* When `emacs-version' is invalid, use normal address.  */
  if (!STRINGP(temp))
    return REPORT_EMACS_BUG_ADDRESS;

  string = XSTRING (temp)->data;

747 748 749 750 751 752 753
  /* Count dots in `emacs-version'.  */
  while (*string)
    {
      if (*string == '.')
	count++;
      string++;
    }
754 755 756

  /* When `emacs-version' has at least three dots, it is development or
     pretest version of Emacs.  */
757
  return count >= 3 ? REPORT_EMACS_BUG_PRETEST_ADDRESS : REPORT_EMACS_BUG_ADDRESS;
758 759 760
}


761 762 763 764 765 766 767
/* ARGSUSED */
int
main (argc, argv, envp)
     int argc;
     char **argv;
     char **envp;
{
768
#if GC_MARK_STACK
769 770
  Lisp_Object dummy;
#endif
771
  char stack_bottom_variable;
772
  int do_initial_setlocale;
773
  int skip_args = 0;
774
#ifndef USE_CRT_DLL
775
  extern int errno;
776
#endif
777 778 779 780 781
#ifdef HAVE_SETRLIMIT
  struct rlimit rlim;
#endif
  int no_loadup = 0;

782
#if GC_MARK_STACK
783 784 785 786
  extern Lisp_Object *stack_base;
  stack_base = &dummy;
#endif

787 788
#ifdef LINUX_SBRK_BUG
  __sbrk (1);
789 790
#endif

791 792 793 794 795
#ifdef RUN_TIME_REMAP
  if (initialized)
    run_time_remap (argv[0]);
#endif

796
  sort_args (argc, argv);
797 798
  argc = 0;
  while (argv[argc]) argc++;
799

800 801 802 803
  if (argmatch (argv, argc, "-version", "--version", 3, NULL, &skip_args)
      /* We don't know the version number unless this is a dumped Emacs.
         So ignore --version otherwise.  */
      && initialized)
804 805 806 807 808 809 810 811 812 813
    {
      Lisp_Object tem;
      tem = Fsymbol_value (intern ("emacs-version"));
      if (!STRINGP (tem))
	{
	  fprintf (stderr, "Invalid value of `emacs-version'\n");
	  exit (1);
	}
      else
	{
814
	  printf ("GNU Emacs %s\n", XSTRING (tem)->data);
815
	  printf ("Copyright (C) 2001 Free Software Foundation, Inc.\n");
816 817 818 819
	  printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
	  printf ("You may redistribute copies of Emacs\n");
	  printf ("under the terms of the GNU General Public License.\n");
	  printf ("For more information about these matters, ");
Karl Heuer's avatar
Karl Heuer committed
820
	  printf ("see the file named COPYING.\n");
821 822 823 824
	  exit (0);
	}
    }

Jim Blandy's avatar
Jim Blandy committed
825 826
/* Map in shared memory, if we are using that.  */
#ifdef HAVE_SHM
827
  if (argmatch (argv, argc, "-nl", "--no-shared-memory", 6, NULL, &skip_args))
Jim Blandy's avatar
Jim Blandy committed
828 829 830 831 832 833 834 835 836 837 838 839 840
    {
      map_in_data (0);
      /* The shared memory was just restored, which clobbered this.  */
      skip_args = 1;
    }
  else
    {
      map_in_data (1);
      /* The shared memory was just restored, which clobbered this.  */
      skip_args = 0;
    }
#endif

841
#ifdef NeXT
842 843 844 845 846 847 848
  {
    extern int malloc_cookie;
    /* This helps out unexnext.c.  */
    if (initialized)
      if (malloc_jumpstart (malloc_cookie) != 0)
	printf ("malloc jumpstart failed!\n");
  }
849 850
#endif /* NeXT */

Jim Blandy's avatar
Jim Blandy committed
851
#ifdef VMS
Pavel Janík's avatar
Pavel Janík committed
852
  /* If -map specified, map the data file in.  */
Karl Heuer's avatar
Karl Heuer committed
853 854
  {
    char *file;
855
    if (argmatch (argv, argc, "-map", "--map-data", 3, &mapin_file, &skip_args))
Karl Heuer's avatar
Karl Heuer committed
856 857
      mapin_data (file);
  }
Jim Blandy's avatar
Jim Blandy committed
858 859

#ifdef LINK_CRTL_SHARE
860
#ifdef SHARABLE_LIB_BUG
Pavel Janík's avatar
Pavel Janík committed
861
  /* Bletcherous shared libraries!  */
Jim Blandy's avatar
Jim Blandy committed
862 863 864 865 866 867 868 869
  if (!stdin)
    stdin = fdopen (0, "r");
  if (!stdout)
    stdout = fdopen (1, "w");
  if (!stderr)
    stderr = fdopen (2, "w");
  if (!environ)
    environ = envp;
870
#endif /* SHARABLE_LIB_BUG */
Jim Blandy's avatar
Jim Blandy committed
871 872 873
#endif /* LINK_CRTL_SHARE */
#endif /* VMS */

874
#if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
875 876 877 878 879 880 881 882
  /* Extend the stack space available.
     Don't do that if dumping, since some systems (e.g. DJGPP)
     might define a smaller stack limit at that time.  */
  if (1
#ifndef CANNOT_DUMP
      && (!noninteractive || initialized)
#endif
      && !getrlimit (RLIMIT_STACK, &rlim))
883
    {
884
      long newlim;
885
      extern int re_max_failures;
886 887 888 889 890 891 892 893
      /* Approximate the amount regex.c needs per unit of re_max_failures.  */
      int ratio = 20 * sizeof (char *);
      /* Then add 33% to cover the size of the smaller stacks that regex.c
	 successively allocates and discards, on its way to the maximum.  */
      ratio += ratio / 3;
      /* Add in some extra to cover
	 what we're likely to use for other reasons.  */
      newlim = re_max_failures * ratio + 200000;
894 895 896 897 898 899 900
#ifdef __NetBSD__
      /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
       stack allocation routine for new process that the allocation
       fails if stack limit is not on page boundary.  So, round up the
       new limit to page boundary.  */
      newlim = (newlim + getpagesize () - 1) / getpagesize () * getpagesize();
#endif
901
      if (newlim > rlim.rlim_max)
902 903
	{
	  newlim = rlim.rlim_max;
904 905
	  /* Don't let regex.c overflow the stack we have.  */
	  re_max_failures = (newlim - 200000) / ratio;
906
	}
907 908 909
      if (rlim.rlim_cur < newlim)
	rlim.rlim_cur = newlim;

910 911
      setrlimit (RLIMIT_STACK, &rlim);
    }
912
#endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
913

Jim Blandy's avatar
Jim Blandy committed
914 915 916 917 918
  /* Record (approximately) where the stack begins.  */
  stack_bottom = &stack_bottom_variable;

#ifdef USG_SHARED_LIBRARIES
  if (bss_end)
919
    brk ((void *)bss_end);
Jim Blandy's avatar
Jim Blandy committed
920 921 922
#endif

  clearerr (stdin);
923

Jim Blandy's avatar
Jim Blandy committed
924
#ifndef SYSTEM_MALLOC
925 926
  /* Arrange to get warning messages as memory fills up.  */
  memory_warnings (0, malloc_warning);
927

928 929 930
  /* Call malloc at least once, to run the initial __malloc_hook.
     Also call realloc and free for consistency.  */
  free (realloc (malloc (4), 4));
931 932 933

  /* Arrange to disable interrupt input inside malloc etc.  */
  uninterrupt_malloc ();
Jim Blandy's avatar
Jim Blandy committed
934 935
#endif	/* not SYSTEM_MALLOC */

936 937 938 939
#ifdef MSDOS
  /* We do all file input/output as binary files.  When we need to translate
     newlines, we do that manually.  */
  _fmode = O_BINARY;
940 941 942 943 944 945 946 947 948 949

#if __DJGPP__ >= 2
  if (!isatty (fileno (stdin)))
    setmode (fileno (stdin), O_BINARY);
  if (!isatty (fileno (stdout)))
    {
      fflush (stdout);
      setmode (fileno (stdout), O_BINARY);
    }
#else  /* not __DJGPP__ >= 2 */
950 951 952
  (stdin)->_flag &= ~_IOTEXT;
  (stdout)->_flag &= ~_IOTEXT;
  (stderr)->_flag &= ~_IOTEXT;
953
#endif /* not __DJGPP__ >= 2 */
954 955
#endif /* MSDOS */

956
#ifdef SET_EMACS_PRIORITY
957
  if (emacs_priority)
958
    nice (emacs_priority);
Jim Blandy's avatar
Jim Blandy committed
959
  setuid (getuid ());
960
#endif /* SET_EMACS_PRIORITY */
Jim Blandy's avatar
Jim Blandy committed
961

962 963 964 965 966 967 968 969 970 971 972 973 974 975
  /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
     The build procedure uses this while dumping, to ensure that the
     dumped Emacs does not have its system locale tables initialized,
     as that might cause screwups when the dumped Emacs starts up.  */
  {
    char *lc_all = getenv ("LC_ALL");
    do_initial_setlocale = ! lc_all || strcmp (lc_all, "C");
  }

  /* Set locale now, so that initial error messages are localized properly.
     fixup_locale must wait until later, since it builds strings.  */
  if (do_initial_setlocale)
    setlocale (LC_ALL, "");

976
#ifdef EXTRA_INITIALIZE
977
  EXTRA_INITIALIZE;
978 979
#endif

Jim Blandy's avatar
Jim Blandy committed
980 981
  inhibit_window_system = 0;

Pavel Janík's avatar
Pavel Janík committed
982
  /* Handle the -t switch, which specifies filename to use as terminal.  */
983 984 985 986 987 988
  while (1)
    {
      char *term;
      if (argmatch (argv, argc, "-t", "--terminal", 4, &term, &skip_args))
	{
	  int result;
989 990 991
	  emacs_close (0);
	  emacs_close (1);
	  result = emacs_open (term, O_RDWR, 0);
992 993 994
	  if (result < 0)
	    {
	      char *errstring = strerror (errno);
995
	      fprintf (stderr, "%s: %s: %s\n", argv[0], term, errstring);
996 997 998 999 1000
	      exit (1);
	    }
	  dup (0);
	  if (! isatty (0))
	    {
1001
	      fprintf (stderr, "%s: %s: not a tty\n", argv[0], term);
1002 1003 1004
	      exit (1);
	    }
	  fprintf (stderr, "Using %s\n", term);
1005
#ifdef HAVE_WINDOW_SYSTEM
1006
	  inhibit_window_system = 1; /* -t => -nw */
Jim Blandy's avatar
Jim Blandy committed
1007
#endif
1008 1009 1010 1011 1012
	}
      else
	break;
    }

1013 1014 1015 1016
  /* Command line option --no-windows is deprecated and thus not mentioned
     in the manual and usage informations.  */
  if (argmatch (argv, argc, "-nw", "--no-window-system", 6, NULL, &skip_args)
      || argmatch (argv, argc, "-nw", "--no-windows", 6, NULL, &skip_args))
Karl Heuer's avatar
Karl Heuer committed
1017
    inhibit_window_system = 1;
Jim Blandy's avatar
Jim Blandy committed
1018

Karl Heuer's avatar
Karl Heuer committed
1019
  /* Handle the -batch switch, which means don't do interactive display.  */
Jim Blandy's avatar
Jim Blandy committed
1020
  noninteractive = 0;
1021
  if (argmatch (argv, argc, "-batch", "--batch", 5, NULL, &skip_args))
Karl Heuer's avatar
Karl Heuer committed
1022 1023
    noninteractive = 1;

Pavel Janík's avatar
Pavel Janík committed
1024
  /* Handle the --help option, which gives a usage message.  */
1025
  if (argmatch (argv, argc, "-help", "--help", 3, NULL, &skip_args))
Jim Blandy's avatar
Jim Blandy committed
1026
    {
1027 1028
      printf (USAGE1, argv[0]);
      printf (USAGE2);
1029
      printf (USAGE3, bug_reporting_address ());
Karl Heuer's avatar
Karl Heuer committed
1030
      exit (0);
Jim Blandy's avatar
Jim Blandy committed
1031 1032
    }

1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047
  if (! noninteractive)
    {
#ifdef BSD_PGRPS
      if (initialized)
	{
	  inherited_pgroup = EMACS_GETPGRP (0);
	  setpgrp (0, getpid ());
	}
#else
#if defined (USG5) && defined (INTERRUPT_INPUT)
      setpgrp ();
#endif
#endif
    }

Jim Blandy's avatar
Jim Blandy committed
1048 1049
  init_signals ();

1050 1051 1052 1053 1054 1055 1056
  /* Don't catch SIGHUP if dumping.  */
  if (1
#ifndef CANNOT_DUMP
      && initialized
#endif
      )
    {
1057
      sigblock (sigmask (SIGHUP));
1058 1059 1060 1061 1062
      /* In --batch mode, don't catch SIGHUP if already ignored.
	 That makes nohup work.  */
      if (! noninteractive
	  || signal (SIGHUP, SIG_IGN) != SIG_IGN)
	signal (SIGHUP, fatal_error_signal);
1063
      sigunblock (sigmask (SIGHUP));
1064 1065
    }

Jim Blandy's avatar
Jim Blandy committed
1066 1067 1068 1069 1070 1071 1072 1073
  if (
#ifndef CANNOT_DUMP
      ! noninteractive || initialized
#else
      1
#endif
      )
    {
1074
      /* Don't catch these signals in batch mode if dumping.
Jim Blandy's avatar
Jim Blandy committed
1075 1076 1077 1078 1079
	 On some machines, this sets static data that would make
	 signal fail to work right when the dumped Emacs is run.  */
      signal (SIGQUIT, fatal_error_signal);
      signal (SIGILL, fatal_error_signal);
      signal (SIGTRAP, fatal_error_signal);
1080 1081 1082 1083 1084 1085
#ifdef SIGUSR1
      signal (SIGUSR1, handle_USR1_signal);
#ifdef SIGUSR2
      signal (SIGUSR2, handle_USR2_signal);
#endif
#endif
1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106
#ifdef SIGABRT
      signal (SIGABRT, fatal_error_signal);
#endif
#ifdef SIGHWE
      signal (SIGHWE, fatal_error_signal);
#endif
#ifdef SIGPRE
      signal (SIGPRE, fatal_error_signal);
#endif
#ifdef SIGORE
      signal (SIGORE, fatal_error_signal);
#endif
#ifdef SIGUME
      signal (SIGUME, fatal_error_signal);
#endif
#ifdef SIGDLK
      signal (SIGDLK, fatal_error_signal);
#endif
#ifdef SIGCPULIM
      signal (SIGCPULIM, fatal_error_signal);
#endif
1107 1108
#ifdef SIGIOT
      /* This is missing on some systems - OS/2, for example.  */
Jim Blandy's avatar
Jim Blandy committed
1109
      signal (SIGIOT, fatal_error_signal);
1110
#endif
Jim Blandy's avatar
Jim Blandy committed
1111 1112 1113 1114
#ifdef SIGEMT
      signal (SIGEMT, fatal_error_signal);
#endif
      signal (SIGFPE, fatal_error_signal);
1115
#ifdef SIGBUS
Jim Blandy's avatar
Jim Blandy committed
1116
      signal (SIGBUS, fatal_error_signal);
1117
#endif
Jim Blandy's avatar
Jim Blandy committed
1118
      signal (SIGSEGV, fatal_error_signal);
1119
#ifdef SIGSYS
Jim Blandy's avatar
Jim Blandy committed
1120
      signal (SIGSYS, fatal_error_signal);
1121
#endif
Jim Blandy's avatar
Jim Blandy committed
1122 1123 1124 1125 1126 1127 1128 1129
      signal (SIGTERM, fatal_error_signal);
#ifdef SIGXCPU
      signal (SIGXCPU, fatal_error_signal);
#endif
#ifdef SIGXFSZ
      signal (SIGXFSZ, fatal_error_signal);
#endif /* SIGXFSZ */

1130 1131 1132 1133 1134
#ifdef SIGDANGER
      /* This just means available memory is getting low.  */
      signal (SIGDANGER, memory_warning_signal);
#endif

Jim Blandy's avatar
Jim Blandy committed
1135
#ifdef AIX
1136 1137
/* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU.  */
      signal (SIGXCPU, fatal_error_signal);
1138
#ifndef _I386
Jim Blandy's avatar
Jim Blandy committed
1139
      signal (SIGIOINT, fatal_error_signal);
1140
#endif
Jim Blandy's avatar
Jim Blandy committed
1141 1142 1143 1144 1145 1146 1147 1148 1149
      signal (SIGGRANT, fatal_error_signal);
      signal (SIGRETRACT, fatal_error_signal);
      signal (SIGSOUND, fatal_error_signal);
      signal (SIGMSG, fatal_error_signal);
#endif /* AIX */
    }

  noninteractive1 = noninteractive;

Pavel Janík's avatar
Pavel Janík committed
1150
/* Perform basic initializations (not merely interning symbols).  */
Jim Blandy's avatar
Jim Blandy committed
1151 1152 1153 1154 1155 1156

  if (!initialized)
    {
      init_alloc_once ();
      init_obarray ();
      init_eval_once ();
1157 1158
      init_charset_once ();
      init_coding_once ();
Jim Blandy's avatar
Jim Blandy committed
1159
      init_syntax_once ();	/* Create standard syntax table.  */
1160
      init_category_once ();	/* Create standard category table.  */
Pavel Janík's avatar
Pavel Janík committed
1161
		      /* Must be done before init_buffer.  */
Jim Blandy's avatar
Jim Blandy committed
1162
      init_casetab_once ();
Pavel Janík's avatar
Pavel Janík committed
1163 1164 1165 1166
      init_buffer_once ();	/* Create buffer table and some buffers.  */
      init_minibuf_once ();	/* Create list of minibuffers.  */
				/* Must precede init_window_once.  */

Gerd Moellmann's avatar
Gerd Moellmann committed
1167 1168 1169 1170 1171
      /* Call syms_of_xfaces before init_window_once because that
	 function creates Vterminal_frame.  Termcap frames now use
	 faces, and the face implementation uses some symbols as
	 face names.  */
      syms_of_xfaces ();
1172 1173 1174 1175 1176
      /* Call syms_of_keyboard before init_window_once because
	 keyboard sets up symbols that include some face names that
	 the X support will want to use.  This can happen when
	 CANNOT_DUMP is defined.  */
      syms_of_keyboard ();
Gerd Moellmann's avatar
Gerd Moellmann committed
1177

1178
#ifdef macintosh
1179 1180 1181 1182 1183 1184
      /* init_window_once calls make_terminal_frame which on Mac OS
         creates a full-fledge output_mac type frame.  This does not
         work correctly before syms_of_textprop, syms_of_macfns,
         syms_of_ccl, syms_of_fontset, syms_of_xterm, syms_of_search,
         syms_of_frame, x_term_init, and init_keyboard have already
         been called.  */
1185 1186 1187 1188 1189 1190 1191 1192
      syms_of_textprop ();
      syms_of_macfns ();
      syms_of_ccl ();
      syms_of_fontset ();
      syms_of_macterm ();
      syms_of_macmenu ();
      syms_of_data ();
      syms_of_search ();
1193
      syms_of_frame ();
Pavel Janík's avatar
Pavel Janík committed
1194

1195 1196 1197 1198
      x_term_init ();
      init_keyboard ();
#endif

Pavel Janík's avatar
Pavel Janík committed
1199
      init_window_once ();	/* Init the window system.  */
1200
      init_fileio_once ();	/* Must precede any path manipulation.  */
Jim Blandy's avatar
Jim Blandy committed
1201 1202 1203
    }

  init_alloc ();
1204 1205 1206 1207

  if (do_initial_setlocale)
    {
      fixup_locale ();
1208 1209
      Vsystem_messages_locale = Vprevious_system_messages_locale;
      Vsystem_time_locale = Vprevious_system_time_locale;
1210 1211
    }

Jim Blandy's avatar
Jim Blandy committed
1212 1213
  init_eval ();
  init_data ();
1214
#ifdef CLASH_DETECTION
1215
  init_filelock ();
1216
#endif
Gerd Moellmann's avatar
Gerd Moellmann committed
1217
  init_atimer ();
1218
  running_asynch_code = 0;
1219

Richard M. Stallman's avatar
Richard M. Stallman committed
1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240
  /* Handle --unibyte and the EMACS_UNIBYTE envvar,
     but not while dumping.  */
  if (
#ifndef CANNOT_DUMP
      ! noninteractive || initialized
#else
      1
#endif
      )
    {
      int inhibit_unibyte = 0;

      /* --multibyte overrides EMACS_UNIBYTE.  */
      if (argmatch (argv, argc, "-no-unibyte", "--no-unibyte", 4, NULL, &skip_args)
	  || argmatch (argv, argc, "-multibyte", "--multibyte", 4, NULL, &skip_args))
	inhibit_unibyte = 1;

      /* --unibyte requests that we set up to do everything with single-byte
	 buffers and strings.  We need to handle this before calling
	 init_lread, init_editfns and other places that generate Lisp strings
	 from text in the environment.  */
Dave Love's avatar
Dave Love committed
1241 1242 1243 1244 1245
      /* Actually this shouldn't be needed as of 20.4 in a generally
	 unibyte environment.  As handa says, environment values
	 aren't now decoded; also existing buffers are now made
	 unibyte during startup if .emacs sets unibyte.  Tested with
	 8-bit data in environment variables and /etc/passwd, setting
Pavel Janík's avatar
Pavel Janík committed
1246
	 unibyte and Latin-1 in .emacs. -- Dave Love  */
Richard M. Stallman's avatar
Richard M. Stallman committed
1247 1248 1249 1250 1251 1252 1253 1254 1255 1256
      if (argmatch (argv, argc, "-unibyte", "--unibyte", 4, NULL, &skip_args)
	  || argmatch (argv, argc, "-no-multibyte", "--no-multibyte", 4, NULL, &skip_args)
	  || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte))
	{
	  Lisp_Object old_log_max;
	  Lisp_Object symbol, tail;

	  symbol = intern ("default-enable-multibyte-characters");
	  Fset (symbol, Qnil);

1257 1258 1259 1260 1261 1262 1263 1264
	  if (initialized)
	    {
	      /* Erase pre-dump messages in *Messages* now so no abort.  */
	      old_log_max = Vmessage_log_max;
	      XSETFASTINT (Vmessage_log_max, 0);
	      message_dolog ("", 0, 1, 0);
	      Vmessage_log_max = old_log_max;
	    }
Richard M. Stallman's avatar
Richard M. Stallman committed
1265

1266
	  for (tail = Vbuffer_alist; CONSP (tail);
1267
	       tail = XCDR (tail))
Richard M. Stallman's avatar
Richard M. Stallman committed
1268 1269 1270
	    {
	      Lisp_Object buffer;