diff src/m/alpha.h @ 255:084402c475ba r20-5b26

Import from CVS: tag r20-5b26
author cvs
date Mon, 13 Aug 2007 10:21:18 +0200
parents 2d532a89d707
children 19dcec799385
line wrap: on
line diff
--- a/src/m/alpha.h	Mon Aug 13 10:20:29 2007 +0200
+++ b/src/m/alpha.h	Mon Aug 13 10:21:18 2007 +0200
@@ -1,7 +1,7 @@
 /* machine description file For the alpha chip.
    Copyright (C) 1994 Free Software Foundation, Inc.
 
-This file is part of GNU Emacs.
+This file is part of XEmacs.
 
 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
@@ -18,222 +18,19 @@
 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 Boston, MA 02111-1307, USA.  */
 
-/* Synched up with: FSF 19.31. */
 
-/* The following line tells the configuration script what sort of 
-   operating system this machine is likely to run.
-   USUAL-OPSYS="note"
-
-NOTE-START
-Use -opsystem=osf1
-NOTE-END
-
-*/
-
-#define DEC_ALPHA		/* Digital Alpha AXP */
-
-/* Define WORD_MACHINE if addresses and such have
- * to be corrected before they can be used as byte counts.  */
-
-/* #define WORD_MACHINE */
-
-/* XEmacs addition: is this necessary? */
-
-/* XEmacs: Apparently not Andrew Cohen  8/24/95 */
-/* Define how to take a char and sign-extend into an int.
-   On machines where char is signed, this is a no-op.  */
-
-/* #define SIGN_EXTEND_CHAR(c) ((signed char)(c)) */
-
-/* Now define a symbol for the cpu type, if your compiler
-   does not define it automatically:
-   Ones defined so far include vax, m68000, ns16000, pyramid,
-   orion, tahoe, APOLLO and many others */
-
-/* __alpha defined automatically */
-
-
-/* Use type EMACS_INT rather than a union, to represent Lisp_Object */
-/* This is desirable for most machines.  */
-
-/* XEmacs change:  something is not quite right with this defined. */
-/* I'm sure this is because VALBITS is defined to be 28 instead of 60.
-   --ben */
-#undef NO_UNION_TYPE
-
-/* Define the type to use.  */
-#define EMACS_INT long
-#define EMACS_UINT unsigned long
-#define SPECIAL_EMACS_INT
-
-/* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
-   the bit field into an int.  In other words, if bit fields
-   are always unsigned.
-
-   If you use NO_UNION_TYPE, this flag does not matter.  */
-
-#define EXPLICIT_SIGN_EXTEND
-
-/* Data type of load average, as read out of kmem.  */
-/* Load average requires special crocks.  Version 19 has them.
-   For now, don't define this.  */
-
-#define LOAD_AVE_TYPE long 
-
-/* Convert that into an integer that is 100 for a load average of 1.0  */
-
-#define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)
-
-/* Define CANNOT_DUMP on machines where unexec does not work.
-   Then the function dump-emacs will not be defined
-   and temacs will do (load "loadup") automatically unless told otherwise.  */
-
-/* #define CANNOT_DUMP */
-
-/* Define VIRT_ADDR_VARIES if the virtual addresses of
-   pure and impure space as loaded can vary, and even their
-   relative order cannot be relied on.
-
-   Otherwise Emacs assumes that text space precedes data space,
-   numerically.  */
-
-/* #define VIRT_ADDR_VARIES */
-
-/* Define C_ALLOCA if this machine does not support a true alloca
-   and the one written in C should be used instead.
-   Define HAVE_ALLOCA to say that the system provides a properly
-   working alloca function and it should be used.
-   Define neither one if an assembler-language alloca
-   in the file alloca.s should be used.  */
-
-#define HAVE_ALLOCA
-
-/* GNU malloc and the relocating allocator do not work together
-   with X.   [Who wrote that?]  */
-
-/* May 1995: reportedly [Rainer Schoepf <schoepf@uni-mainz.de>] both the
-   system and the gnu malloc system work with "alpha-dec-osf3.0" and
-   "alpha-dec-osf3.2".  */
-
-/* May 1995: it seems to me [Morten Welinder <terra@diku.dk>] that both
-   mallocs work with "alpha-dec-osf2.0", but I daren't break anything
-   right now.  Feel free to play if you want.  */
-
-/* #define SYSTEM_MALLOC */
-
-/* Define NO_REMAP if memory segmentation makes it not work well
-   to change the boundary between the text section and data section
-   when Emacs is dumped.  If you define this, the preloaded Lisp
-   code will not be sharable; but that's better than failing completely.  */
-
-/* #define NO_REMAP */
-
-/* Some really obscure 4.2-based systems (like Sequent DYNIX)
- * do not support asynchronous I/O (using SIGIO) on sockets,
- * even though it works fine on tty's.  If you have one of
- * these systems, define the following, and then use it in
- * config.h (or elsewhere) to decide when (not) to use SIGIO.
- *
- * You'd think this would go in an operating-system description file,
- * but since it only occurs on some, but not all, BSD systems, the
- * reasonable place to select for it is in the machine description
- * file.
- */
-
-/* #define NO_SOCK_SIGIO */
-
-
-#define HAVE_X11R4
-#define HAVE_X11R5
-
-
-/* Describe layout of the address space in an executing process.  */
-
-#define TEXT_START    0x120000000
-#define DATA_START    0x140000000
-
-#if 0 /* #### XEmacs: see below */
-/* This is necessary for mem-limits.h, so that start_of_data gives
-   the correct value */
-#define DATA_SEG_BITS 0x140000000
-#endif /* 0 */
+#ifdef LINUX
+ # define SYSTEM_MALLOC
+#endif
 
 #ifdef OSF1
-#define ORDINARY_LINK
-#endif /* OSF1 */
-
-#if 0 /* Rainer Schoepf <schoepf@uni-mainz.de> says this loses with X11R6
-	 since it has only shared libraries.  */
-#ifndef __GNUC__
-/* This apparently is for the system ld as opposed to Gnu ld.  */
-#ifdef OSF1
-#define LD_SWITCH_MACHINE "-non_shared"
-#endif /* OSF1 */
-#endif /* not __GNUC__ */
-#endif /* 0 */
-
-#ifdef OSF1
-#define LIBS_DEBUG
-#define START_FILES "pre-crt0.o "
-#endif /* OSF1 */
-
-#ifdef LINUX
-/* This controls a conditional in main.  */
-#define LINUX_SBRK_BUG
-#endif /* LINUX */
-
-/* The program to be used for unexec. */
-
-#define UNEXEC "unexalpha.o"
-
-#if 0
-
-/* XEmacs -- removed code to define XINT, etc.  This gets
-   correctly handled automatically. */
-
-/* Declare malloc and realloc in a way that is clean.
-   But not in makefiles!  */
+# define ORDINARY_LINK
+#endif
 
-#ifndef NOT_C_CODE
-/* We need these because pointers are larger than the default ints.  */
-#include <alloca.h>
-#endif /* not NOT_C_CODE */
-
-#endif /* 0 */
-
-#ifdef OSF1
-#define PTY_ITERATION		for (i = 0; i < 1; i++) /* ick */
-#define PTY_NAME_SPRINTF	/* none */
-#define PTY_TTY_NAME_SPRINTF	/* none */
-#define PTY_OPEN					\
-  do							\
-    {							\
-      int dummy;					\
-      int mask = sigsetmask (SIGCHLD);			\
-      if (-1 == openpty (&fd, &dummy, pty_name, 0, 0))	\
-	fd = -1;					\
-      sigsetmask (mask);				\
-      close (dummy);					\
-    }							\
-  while (0)
-#endif /* OSF1 */
-
-#ifdef linux
-#define COFF
-#define TEXT_END ({ extern int _etext; &_etext; })
-#define DATA_END ({ extern int _EDATA; &_EDATA; })
-#endif /* linux */
-
-/* XEmacs: The Dec CC compiler (but apparently not GCC, which uses different
-   macros due to its own compiler bug) breaks spectacularly
-   when MACROIZE_ERROR_CHECKING is turned on. */
-#define BROKEN_MACROIZE_ERROR_CHECKING
-
-/* XEmacs: from Andrew Cohen based on this comment found in <termio.h>:
-
-   Unfortunately System V and POSIX have different values for some of
-   the defines.  So we have to perform the following kluge which
-   redefines the V___ values for termio.  This means you cannot do
-   ioctls using termios and termio in the same source file.
-   */
-/* #define NO_TERMIO */ /* mrb */
+#ifndef __ELF__
+  /* Describe layout of the address space in an executing process.  */
+# define TEXT_START    0x120000000
+# define DATA_START    0x140000000
+  /* The program to be used for unexec. */
+# define UNEXEC unexalpha.o
+#endif