Copyright (C) 1985, 1986, 1987, 1992, 1993, 1994
Free Software Foundation, Inc.
Copyright (C) 1995 Sun Microsystems, Inc.
- Copyright (C) 2000 Ben Wing.
+ Copyright (C) 2000, 2002 Ben Wing.
+ Copyright (C) 2000,2002 MORIOKA Tomohiko.
This file is part of XEmacs.
Lisp_Object Vexec_directory, Vconfigure_exec_directory;
Lisp_Object Vlisp_directory, Vconfigure_lisp_directory;
Lisp_Object Vmule_lisp_directory, Vconfigure_mule_lisp_directory;
+Lisp_Object Vutf_2000_lisp_directory, Vconfigure_utf_2000_lisp_directory;
Lisp_Object Vmodule_directory, Vconfigure_module_directory;
Lisp_Object Vsite_module_directory, Vconfigure_site_module_directory;
Lisp_Object Vconfigure_package_path;
or do other non-essential stuff. */
int preparing_for_armageddon;
+/* Nonzero means we're in an unstable situation and need to skip
+ i18n conversions and such during printing. */
+int inhibit_non_essential_printing_operations;
static JMP_BUF run_temacs_catch;
static void shut_down_emacs (int sig, Lisp_Object stuff, int no_auto_save);
+/* ------------------------------- */
+/* low-level debugging functions */
+/* ------------------------------- */
+
+#if defined (WIN32_NATIVE) && defined (DEBUG_XEMACS)
+#define debugging_breakpoint() DebugBreak ()
+#else
+#define debugging_breakpoint()
+#endif
+
+void
+debug_break (void)
+{
+ debugging_breakpoint ();
+}
+
+#if defined (WIN32_NATIVE) || defined (CYGWIN)
+
+/* Return whether all bytes in the specified memory block can be read. */
+int
+debug_can_access_memory (void *ptr, Bytecount len)
+{
+ return !IsBadReadPtr (ptr, len);
+}
+
+#else /* !(defined (WIN32_NATIVE) || defined (CYGWIN)) */
+
+/* #### There must be a better way!!!! */
+
+static JMP_BUF memory_error_jump;
+
+static SIGTYPE
+debug_memory_error (int signum)
+{
+ EMACS_REESTABLISH_SIGNAL (signum, debug_memory_error);
+ EMACS_UNBLOCK_SIGNAL (signum);
+ LONGJMP (memory_error_jump, 1);
+}
+
+/* Return whether all bytes in the specified memory block can be read. */
+int
+debug_can_access_memory (void *ptr, Bytecount len)
+{
+ /* Use volatile to protect variables from being clobbered by longjmp. */
+ SIGTYPE (*volatile old_sigbus) (int);
+ SIGTYPE (*volatile old_sigsegv) (int);
+ volatile int old_errno = errno;
+ volatile int retval = 1;
+
+ if (!SETJMP (memory_error_jump))
+ {
+ old_sigbus =
+ (SIGTYPE (*) (int)) signal (SIGBUS, debug_memory_error);
+ old_sigsegv =
+ (SIGTYPE (*) (int)) signal (SIGSEGV, debug_memory_error);
+
+ if (len > 1)
+ /* If we can, try to avoid problems with super-optimizing compilers
+ that might decide that memcmp (ptr, ptr, len) can be optimized
+ away since its result is always 1. */
+ memcmp (ptr, (char *) ptr + 1, len - 1);
+ else
+ memcmp (ptr, ptr, len);
+ }
+ else
+ retval = 0;
+ signal (SIGBUS, old_sigbus);
+ signal (SIGSEGV, old_sigsegv);
+ errno = old_errno;
+
+ return retval;
+}
+
+#endif /* defined (WIN32_NATIVE) || defined (CYGWIN) */
+
+#ifdef DEBUG_XEMACS
+
+DEFUN ("force-debugging-signal", Fforce_debugging_signal, 0, 1, 0, /*
+Cause XEmacs to enter the debugger.
+On some systems, there may be no way to do this gracefully; if so,
+nothing happens unless ABORT is non-nil, in which case XEmacs will
+abort() -- a sure-fire way to immediately get back to the debugger,
+but also a sure-fire way to kill XEmacs (and dump core on Unix
+systems)!
+*/
+ (abort_))
+{
+ debugging_breakpoint ();
+ if (!NILP (abort_))
+ abort ();
+ return Qnil;
+}
+
+#endif /* DEBUG_XEMACS */
+
static void
ensure_no_quitting_from_now_on (void)
{
fatal_error_signal (int sig)
{
fatal_error_in_progress++;
+ inhibit_non_essential_printing_operations = 1;
preparing_for_armageddon = 1;
ensure_no_quitting_from_now_on ();
__try
{
fatal_error_in_progress++;
+ inhibit_non_essential_printing_operations = 1;
preparing_for_armageddon = 1;
ensure_no_quitting_from_now_on ();
#endif /* not SYSTEM_MALLOC or HAVE_LIBMCHECK or DOUG_LEA_MALLOC */
noninteractive = 0;
+ inhibit_non_essential_printing_operations = 1;
#ifdef NeXT
/* 19-Jun-1995 -baw
#endif /* QUANTIFY */
initialized = 1;
+ inhibit_non_essential_printing_operations = 0;
/* This never returns. */
initial_command_loop (load_me);
quantify_clear_data ();
#endif /* QUANTIFY */
+ inhibit_non_essential_printing_operations = 1;
suppress_early_error_handler_backtrace = 0;
lim_data = 0; /* force reinitialization of this variable */
if (!initialized)
{
#ifdef DOUG_LEA_MALLOC
- mallopt (M_MMAP_MAX, 0);
+ if (mallopt (M_MMAP_MAX, 0) != 1)
+ abort();
#endif
run_temacs_argc = 0;
if (! SETJMP (run_temacs_catch))
defined(_NO_MALLOC_WARNING_) || \
(defined(__GLIBC__) && __GLIBC_MINOR__ < 1 && !defined(MULE)) || \
defined(DEBUG_DOUG_LEA_MALLOC)
- mallopt (M_MMAP_MAX, 64);
+ if(mallopt (M_MMAP_MAX, 0) != 1)
+ abort();
#endif
#ifdef REL_ALLOC
r_alloc_reinit ();
/* We are extremely paranoid so we sensibly deal with recursive
assertion failures. */
in_assert_failed++;
+ inhibit_non_essential_printing_operations = 1;
if (in_assert_failed >= 4)
_exit (-1);
#if !defined (ASSERTIONS_DONT_ABORT)
abort ();
#endif
+ inhibit_non_essential_printing_operations = 0;
in_assert_failed = 0;
}
#endif /* USE_ASSERTIONS */
DEFSUBR (Fkill_emacs);
DEFSUBR (Fnoninteractive);
+#ifdef DEBUG_XEMACS
+ DEFSUBR (Fforce_debugging_signal);
+#endif
+
#ifdef QUANTIFY
DEFSUBR (Fquantify_start_recording_data);
DEFSUBR (Fquantify_stop_recording_data);
#ifndef XEMACS_CODENAME
#define XEMACS_CODENAME "Noname"
#endif
+#ifdef MULE
+ {
+ char dest[129];
+ char src[64] = XEMACS_CODENAME;
+ unsigned char* sp = (unsigned char*)src;
+ int i = 0, chr;
+
+ while ( (chr = *sp++) && (i < 128) )
+ {
+ if (chr <= 0x7F)
+ dest[i++] = chr;
+ else
+ {
+#ifdef UTF2000
+ dest[i++] = (chr >> 6) | 0xC0;
+ dest[i++] = (chr & 0x3F) | 0x80;
+#else
+ dest[i++] = LEADING_BYTE_LATIN_ISO8859_1;
+ dest[i++] = chr;
+#endif
+ }
+ }
+ dest[i] = 0;
+ Vxemacs_codename = build_string (dest);
+ }
+#else
Vxemacs_codename = build_string (XEMACS_CODENAME);
+#endif
/* Lisp variables which contain command line flags.
Vconfigure_mule_lisp_directory = Qnil;
#endif
+ DEFVAR_LISP ("utf-2000-lisp-directory", &Vutf_2000_lisp_directory /*
+*Directory of UTF-2000 Lisp files that come with XEmacs.
+*/ );
+ Vutf_2000_lisp_directory = Qnil;
+
+ DEFVAR_LISP ("configure-utf-2000-lisp-directory",
+ &Vconfigure_utf_2000_lisp_directory /*
+For internal use by the build procedure only.
+configure's idea of what `utf-2000-lisp-directory' will be.
+*/ );
+#ifdef PATH_UTF2000LOADSEARCH
+ Vconfigure_utf_2000_lisp_directory = Ffile_name_as_directory
+ (build_string ((char *) PATH_UTF2000LOADSEARCH));
+#else
+ Vconfigure_utf_2000_lisp_directory = Qnil;
+#endif
+
DEFVAR_LISP ("module-directory", &Vmodule_directory /*
*Directory of core dynamic modules that come with XEmacs.
*/ );
projects / chise / xemacs-chise.git.1 / blobdiff