131 lines
4.4 KiB
C
131 lines
4.4 KiB
C
/* machine description file for AMD x86-64.
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Copyright (C) 2002 Free Software Foundation, Inc.
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This file is part of GNU Emacs.
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GNU Emacs is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Emacs is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Emacs; see the file COPYING. If not, write to
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the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* The following line tells the configuration script what sort of
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operating system this machine is likely to run.
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USUAL-OPSYS="linux" */
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#define BITS_PER_LONG 64
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#define BITS_PER_EMACS_INT 64
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/* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word
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is the most significant byte. */
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#undef WORDS_BIG_ENDIAN
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/* Define NO_ARG_ARRAY if you cannot take the address of the first of a
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* group of arguments and treat it as an array of the arguments. */
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#define NO_ARG_ARRAY
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/* Define WORD_MACHINE if addresses and such have
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* to be corrected before they can be used as byte counts. */
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/* #define WORD_MACHINE */
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/* Now define a symbol for the cpu type, if your compiler
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does not define it automatically:
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Ones defined so far include vax, m68000, ns16000, pyramid,
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orion, tahoe, APOLLO and many others */
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/* __x86_64 defined automatically. */
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/* Use type int rather than a union, to represent Lisp_Object */
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/* This is desirable for most machines. */
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#define NO_UNION_TYPE
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/* Define the type to use. */
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#define EMACS_INT long
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#define EMACS_UINT unsigned long
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#define SPECIAL_EMACS_INT
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/* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
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the 24-bit bit field into an int. In other words, if bit fields
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are always unsigned.
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If you use NO_UNION_TYPE, this flag does not matter. */
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#define EXPLICIT_SIGN_EXTEND
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/* Data type of load average, as read out of kmem. */
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#define LOAD_AVE_TYPE long
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/* Convert that into an integer that is 100 for a load average of 1.0 */
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#define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)
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/* Define CANNOT_DUMP on machines where unexec does not work.
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Then the function dump-emacs will not be defined
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and temacs will do (load "loadup") automatically unless told otherwise. */
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/* #define CANNOT_DUMP */
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/* Define VIRT_ADDR_VARIES if the virtual addresses of
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pure and impure space as loaded can vary, and even their
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relative order cannot be relied on.
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Otherwise Emacs assumes that text space precedes data space,
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numerically. */
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#define VIRT_ADDR_VARIES /* XXX */
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/* Define C_ALLOCA if this machine does not support a true alloca
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and the one written in C should be used instead.
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Define HAVE_ALLOCA to say that the system provides a properly
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working alloca function and it should be used.
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Define neither one if an assembler-language alloca
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in the file alloca.s should be used. */
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/* #define C_ALLOCA */ /* XXX */
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#define HAVE_ALLOCA
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/* Define NO_REMAP if memory segmentation makes it not work well
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to change the boundary between the text section and data section
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when Emacs is dumped. If you define this, the preloaded Lisp
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code will not be sharable; but that's better than failing completely. */
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#define NO_REMAP /* XXX */
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#define PNTR_COMPARISON_TYPE unsigned long
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/* On the 64 bit architecture, we can use 60 bits for addresses */
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#define VALBITS 60
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/* This definition of MARKBIT is necessary because of the comparison of
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ARRAY_MARK_FLAG and MARKBIT in an #if in lisp.h, which cpp doesn't like. */
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#define MARKBIT 0x8000000000000000L
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/* Define XINT and XUINT so that they can take arguments of type int */
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#define XINT(a) (((long) (a) << (BITS_PER_LONG - VALBITS)) >> (BITS_PER_LONG - VALBITS))
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#define XUINT(a) ((long) (a) & VALMASK)
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/* Define XPNTR to avoid or'ing with DATA_SEG_BITS */
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#define XPNTR(a) XUINT (a)
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/* #undef START_FILES */ /* XXX */
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/* #define START_FILES pre-crt0.o /usr/lib64/crt1.o /usr/lib64/crti.o */ /* XXX */
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/* #undef LIB_STANDARD */ /* XXX */
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/* #define LIB_STANDARD -lgcc -lc -lgcc /usr/lib64/crtn.o */ /* XXX */
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