/* Fully extensible Emacs, running on Unix, intended for GNU.
-Copyright (C) 1985-1987, 1993-1995, 1997-1999, 2001-2015 Free Software
+Copyright (C) 1985-1987, 1993-1995, 1997-1999, 2001-2016 Free Software
Foundation, Inc.
This file is part of GNU Emacs.
#include <config.h>
#include <errno.h>
+#include <fcntl.h>
#include <stdio.h>
#include <sys/types.h>
#include TERM_HEADER
#endif /* HAVE_WINDOW_SYSTEM */
-#include "commands.h"
+#include "coding.h"
#include "intervals.h"
#include "character.h"
#include "buffer.h"
#include "window.h"
-
-#include "systty.h"
+#include "xwidget.h"
#include "atimer.h"
#include "blockinput.h"
#include "syssignal.h"
#include "composite.h"
#include "dispextern.h"
#include "regex.h"
+#include "sheap.h"
#include "syntax.h"
#include "sysselect.h"
#include "systime.h"
+#include "puresize.h"
#include "gnutls.h"
#include <locale.h>
#endif
+#if HAVE_WCHAR_H
+# include <wchar.h>
+#endif
+
#ifdef HAVE_SETRLIMIT
#include <sys/time.h>
#include <sys/resource.h>
bool initialized;
/* Set to true if this instance of Emacs might dump. */
+#ifndef DOUG_LEA_MALLOC
+static
+#endif
bool might_dump;
#ifdef DARWIN_OS
extern void unexec_init_emacs_zone (void);
#endif
-#ifdef DOUG_LEA_MALLOC
-/* Preserves a pointer to the memory allocated that copies that
- static data inside glibc's malloc. */
-static void *malloc_state_ptr;
-/* From glibc, a routine that returns a copy of the malloc internal state. */
-extern void *malloc_get_state (void);
-/* From glibc, a routine that overwrites the malloc internal state. */
-extern int malloc_set_state (void *);
-/* True if the MALLOC_CHECK_ environment variable was set while
- dumping. Used to work around a bug in glibc's malloc. */
-static bool malloc_using_checking;
-#elif defined HAVE_PTHREAD && !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
-extern void malloc_enable_thread (void);
-#endif
-
/* If true, Emacs should not attempt to use a window-specific code,
but instead should use the virtual terminal under which it was started. */
bool inhibit_window_system;
Tells GC how to save a copy of the stack. */
char *stack_bottom;
-#if defined (DOUG_LEA_MALLOC) || defined (GNU_LINUX)
-/* The address where the heap starts (from the first sbrk (0) call). */
-static void *my_heap_start;
-#endif
-
#ifdef GNU_LINUX
/* The gap between BSS end and heap start as far as we can tell. */
static uprintmax_t heap_bss_diff;
}
#endif
+/* True if the current system locale uses UTF-8 encoding. */
+static bool
+using_utf8 (void)
+{
+#ifdef HAVE_WCHAR_H
+ wchar_t wc;
+ mbstate_t mbs = { 0 };
+ return mbrtowc (&wc, "\xc4\x80", 2, &mbs) == 2 && wc == 0x100;
+#else
+ return false;
+#endif
+}
+
/* Report a fatal error due to signal SIG, output a backtrace of at
most BACKTRACE_LIMIT lines, and exit. */
{
signal (sig, SIG_DFL);
- /* If fatal error occurs in code below, avoid infinite recursion. */
- if (! fatal_error_in_progress)
+ if (attempt_orderly_shutdown_on_fatal_signal)
{
- fatal_error_in_progress = 1;
+ /* If fatal error occurs in code below, avoid infinite recursion. */
+ if (! fatal_error_in_progress)
+ {
+ fatal_error_in_progress = 1;
- totally_unblock_input ();
- if (sig == SIGTERM || sig == SIGHUP || sig == SIGINT)
- Fkill_emacs (make_number (sig));
+ totally_unblock_input ();
+ if (sig == SIGTERM || sig == SIGHUP || sig == SIGINT)
+ Fkill_emacs (make_number (sig));
- shut_down_emacs (sig, Qnil);
- emacs_backtrace (backtrace_limit);
+ shut_down_emacs (sig, Qnil);
+ emacs_backtrace (backtrace_limit);
+ }
}
/* Signal the same code; this time it will really be fatal.
}
}
-#ifdef DOUG_LEA_MALLOC
-
-/* 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 (void)
-{
- if (initialized)
- {
- 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
- malloc checking. Can't use unsetenv, since that calls malloc. */
- {
- char **p;
-
- for (p = environ; p && *p; p++)
- if (strncmp (*p, "MALLOC_CHECK_=", 14) == 0)
- {
- do
- *p = p[1];
- while (*++p);
- break;
- }
- }
-
- malloc_set_state (malloc_state_ptr);
-#ifndef XMALLOC_OVERRUN_CHECK
- free (malloc_state_ptr);
-#endif
- }
- else
- {
- if (my_heap_start == 0)
- my_heap_start = sbrk (0);
- malloc_using_checking = getenv ("MALLOC_CHECK_") != NULL;
- }
-}
-
-void (*__malloc_initialize_hook) (void) EXTERNALLY_VISIBLE = malloc_initialize_hook;
-
-#endif /* DOUG_LEA_MALLOC */
-
/* Close standard output and standard error, reporting any write
errors as best we can. This is intended for use with atexit. */
static void
int
main (int argc, char **argv)
{
-#if GC_MARK_STACK
Lisp_Object dummy;
-#endif
char stack_bottom_variable;
bool do_initial_setlocale;
bool dumping;
/* If we use --chdir, this records the original directory. */
char *original_pwd = 0;
-#if GC_MARK_STACK
stack_base = &dummy;
-#endif
#ifndef CANNOT_DUMP
might_dump = !initialized;
#ifdef GNU_LINUX
if (!initialized)
{
- if (my_heap_start == 0)
- my_heap_start = sbrk (0);
-
- heap_bss_diff = (char *)my_heap_start - max (my_endbss, my_endbss_static);
+ char *heap_start = my_heap_start ();
+ heap_bss_diff = heap_start - max (my_endbss, my_endbss_static);
}
#endif
names between UTF-8 and the system's ANSI codepage. */
maybe_load_unicows_dll ();
#endif
+ /* This has to be done before module_init is called below, so that
+ the latter could use the thread ID of the main thread. */
+ w32_init_main_thread ();
#endif
#ifdef RUN_TIME_REMAP
atexit (close_output_streams);
+#ifdef HAVE_MODULES
+ module_init ();
+#endif
+
sort_args (argc, argv);
argc = 0;
while (argv[argc]) argc++;
filename_from_ansi (ch_to_dir, newdir);
ch_to_dir = newdir;
#endif
- original_pwd = get_current_dir_name ();
+ original_pwd = emacs_get_current_dir_name ();
if (chdir (ch_to_dir) != 0)
{
fprintf (stderr, "%s: Can't chdir to %s: %s\n",
}
#endif /* HAVE_PERSONALITY_LINUX32 */
-#if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
- /* 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 defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK) && !defined (CYGWIN)
+ /* 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. And it's not needed on Cygwin, since emacs
+ is built with an 8MB stack. Moreover, the setrlimit call can
+ cause problems on Cygwin
+ (https://www.cygwin.com/ml/cygwin/2015-07/msg00096.html). */
if (1
#ifndef CANNOT_DUMP
&& (!noninteractive || initialized)
setrlimit (RLIMIT_STACK, &rlim);
}
-#endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
+#endif /* HAVE_SETRLIMIT and RLIMIT_STACK and not CYGWIN */
/* Record (approximately) where the stack begins. */
stack_bottom = &stack_bottom_variable;
fixup_locale must wait until later, since it builds strings. */
if (do_initial_setlocale)
setlocale (LC_ALL, "");
+ text_quoting_flag = using_utf8 ();
inhibit_window_system = 0;
tzset ();
#endif /* MSDOS */
+#ifdef HAVE_KQUEUE
+ globals_of_kqueue ();
+#endif
+
#ifdef HAVE_GFILENOTIFY
globals_of_gfilenotify ();
#endif
init_ntproc (dumping); /* must precede init_editfns. */
#endif
+#ifdef HAVE_NS
+ /* Initialise the locale from user defaults. */
+ ns_init_locale();
+#endif
+
/* Initialize and GC-protect Vinitial_environment and
Vprocess_environment before set_initial_environment fills them
in. */
syms_of_terminal ();
syms_of_term ();
syms_of_undo ();
+
+#ifdef HAVE_MODULES
+ syms_of_module ();
+#endif
+
#ifdef HAVE_SOUND
syms_of_sound ();
#endif
syms_of_xfns ();
syms_of_xmenu ();
syms_of_fontset ();
+ syms_of_xwidget ();
syms_of_xsettings ();
#ifdef HAVE_X_SM
syms_of_xsmfns ();
syms_of_gnutls ();
-#ifdef HAVE_GFILENOTIFY
- syms_of_gfilenotify ();
-#endif /* HAVE_GFILENOTIFY */
-
#ifdef HAVE_INOTIFY
syms_of_inotify ();
#endif /* HAVE_INOTIFY */
+#ifdef HAVE_KQUEUE
+ syms_of_kqueue ();
+#endif /* HAVE_KQUEUE */
+
+#ifdef HAVE_GFILENOTIFY
+ syms_of_gfilenotify ();
+#endif /* HAVE_GFILENOTIFY */
+
#ifdef HAVE_DBUS
syms_of_dbusbind ();
#endif /* HAVE_DBUS */
/* This calls putenv and so must precede init_process_emacs. Also,
it sets Voperating_system_release, which init_process_emacs uses. */
- init_editfns ();
+ init_editfns (dumping);
/* These two call putenv. */
#ifdef HAVE_DBUS
attributes: noreturn)
(Lisp_Object arg)
{
- struct gcpro gcpro1;
int exit_code;
- GCPRO1 (arg);
-
/* Fsignal calls emacs_abort () if it sees that waiting_for_input is
set. */
waiting_for_input = 0;
run_hook (Qkill_emacs_hook);
- UNGCPRO;
#ifdef HAVE_X_WINDOWS
/* Transfer any clipboards we own to the clipboard manager. */
/* There is a tendency for a SIGIO signal to arrive within exit,
and cause a SIGHUP because the input descriptor is already closed. */
unrequest_sigio ();
- ignore_sigio ();
/* Do this only if terminating normally, we want glyph matrices
etc. in a core dump. */
tem = Vpurify_flag;
Vpurify_flag = Qnil;
+#ifdef HYBRID_MALLOC
+ {
+ static char const fmt[] = "%d of %d static heap bytes used";
+ char buf[sizeof fmt + 2 * (INT_STRLEN_BOUND (int) - 2)];
+ int max_usage = max_bss_sbrk_ptr - bss_sbrk_buffer;
+ sprintf (buf, fmt, max_usage, STATIC_HEAP_SIZE);
+ /* Don't log messages, because at this point buffers cannot be created. */
+ message1_nolog (buf);
+ }
+#endif
+
fflush (stdout);
/* Tell malloc where start of impure now is. */
/* Also arrange for warnings when nearly out of space. */
memory_warnings (my_edata, malloc_warning);
#endif /* not WINDOWSNT */
#endif /* not SYSTEM_MALLOC and not HYBRID_MALLOC */
-#ifdef DOUG_LEA_MALLOC
- malloc_state_ptr = malloc_get_state ();
-#endif
+
+ alloc_unexec_pre ();
unexec (SSDATA (filename), !NILP (symfile) ? SSDATA (symfile) : 0);
-#ifdef DOUG_LEA_MALLOC
- free (malloc_state_ptr);
-#endif
+ alloc_unexec_post ();
#ifdef WINDOWSNT
Vlibrary_cache = Qnil;
{
if (! EQ (*plocale, desired_locale))
{
+ *plocale = desired_locale;
#ifdef WINDOWSNT
- /* Changing categories like LC_TIME usually requires to specify
+ /* Changing categories like LC_TIME usually requires specifying
an encoding suitable for the new locale, but MS-Windows's
'setlocale' will only switch the encoding when LC_ALL is
- specified. So we ignore CATEGORY and use LC_ALL instead. */
- category = LC_ALL;
-#endif
- *plocale = desired_locale;
+ specified. So we ignore CATEGORY, use LC_ALL instead, and
+ then restore LC_NUMERIC to "C", so reading and printing
+ numbers is unaffected. */
+ setlocale (LC_ALL, (STRINGP (desired_locale)
+ ? SSDATA (desired_locale)
+ : ""));
+ fixup_locale ();
+#else /* !WINDOWSNT */
setlocale (category, (STRINGP (desired_locale)
? SSDATA (desired_locale)
: ""));
+#endif /* !WINDOWSNT */
}
}
Anything else (in Emacs 24.1, the possibilities are: aix, berkeley-unix,
hpux, irix, usg-unix-v) indicates some sort of Unix system. */);
Vsystem_type = intern_c_string (SYSTEM_TYPE);
- /* See configure.ac (and config.nt) for the possible SYSTEM_TYPEs. */
+ /* See configure.ac for the possible SYSTEM_TYPEs. */
DEFVAR_LISP ("system-configuration", Vsystem_configuration,
doc: /* Value is string indicating configuration Emacs was built for. */);