[bpt/emacs.git] / src / m / sparc.h

/* machine description file for Sun 4 SPARC.
   Copyright (C) 1987, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
                 2008, 2009, 2010, 2011  Free Software Foundation, Inc.

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
the Free Software Foundation, either version 3 of the License, or
(at your option) 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.  If not, see <http://www.gnu.org/licenses/>.  */

/* 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=sunos4 for operating system version 4, and
-opsystem=bsd4-2 for earlier versions.
NOTE-END  */

/* Define WORDS_BIG_ENDIAN if lowest-numbered byte in a word
   is the most significant byte.  */

#define WORDS_BIG_ENDIAN

/* Define NO_ARG_ARRAY if you cannot take the address of the first of a
 * group of arguments and treat it as an array of the arguments.  */

#define NO_ARG_ARRAY

/* __sparc__ is defined by the compiler by default.  */

/* XINT must explicitly sign-extend
   This flag only matters if you use USE_LISP_UNION_TYPE.  */

#define EXPLICIT_SIGN_EXTEND

/* Data type of load average, as read out of kmem.  */

#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)

/* Mask for address bits within a memory segment */

#define SEGMENT_MASK (SEGSIZ - 1)

#ifdef __arch64__		/* GCC, 64-bit ABI.  */
#define BITS_PER_LONG 64
#ifdef __linux__
#undef START_FILES
#define START_FILES pre-crt0.o /usr/lib64/crt1.o /usr/lib64/crti.o

/* The duplicate -lgcc is intentional in the definition of LIB_STANDARD.
   The reason is that some functions in libgcc.a call functions from libc.a,
   and some libc.a functions need functions from libgcc.a.  Since most
   versions of ld are one-pass linkers, we need to mention -lgcc twice,
   or else we risk getting unresolved externals.  */
#undef LIB_STANDARD
#define LIB_STANDARD -lgcc -lc -lgcc /usr/lib64/crtn.o
#endif

#ifndef _LP64
#define _LP64			/* Done on Alpha -- not sure if it
				   should be here.  -- fx */
#endif
#endif

/* arch-tag: 0a6f7882-33fd-4811-9832-7466c51e50f7
   (do not change this comment) */
Commit	Line	Data
20c428fd	1	/* machine description file for Sun 4 SPARC.
eb3d11ef	2	Copyright (C) 1987, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
5df4f04c	3	2008, 2009, 2010, 2011 Free Software Foundation, Inc.
20c428fd JB	4
	5	This file is part of GNU Emacs.
	6
eb3d11ef	7	GNU Emacs is free software: you can redistribute it and/or modify
20c428fd	8	it under the terms of the GNU General Public License as published by
eb3d11ef GM	9	the Free Software Foundation, either version 3 of the License, or
eb3d11ef GM	10	(at your option) any later version.
20c428fd JB	11
	12	GNU Emacs is distributed in the hope that it will be useful,
	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	GNU General Public License for more details.
	16
	17	You should have received a copy of the GNU General Public License
eb3d11ef	18	along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
20c428fd	19
177c0ea7	20	/* The following line tells the configuration script what sort of
20c428fd JB	21	operating system this machine is likely to run.
	22	USUAL-OPSYS="note"
	23
	24	NOTE-START
	25	Use -opsystem=sunos4 for operating system version 4, and
	26	-opsystem=bsd4-2 for earlier versions.
	27	NOTE-END */
	28
22e9fe24	29	/* Define WORDS_BIG_ENDIAN if lowest-numbered byte in a word
74d3f806 KH	30	is the most significant byte. */
	31
	32	#define WORDS_BIG_ENDIAN
	33
20c428fd JB	34	/* Define NO_ARG_ARRAY if you cannot take the address of the first of a
	35	* group of arguments and treat it as an array of the arguments. */
	36
	37	#define NO_ARG_ARRAY
	38
ad76189a	39	/* __sparc__ is defined by the compiler by default. */
20c428fd	40
6e5cb96f DN	41	/* XINT must explicitly sign-extend
6e5cb96f DN	42	This flag only matters if you use USE_LISP_UNION_TYPE. */
20c428fd JB	43
	44	#define EXPLICIT_SIGN_EXTEND
	45
	46	/* Data type of load average, as read out of kmem. */
	47
	48	#define LOAD_AVE_TYPE long
	49
	50	/* Convert that into an integer that is 100 for a load average of 1.0 */
	51
	52	#define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)
	53
20c428fd JB	54	/* Mask for address bits within a memory segment */
	55
	56	#define SEGMENT_MASK (SEGSIZ - 1)
	57
ffcd05c3 DL	58	#ifdef __arch64__ /* GCC, 64-bit ABI. */
ffcd05c3 DL	59	#define BITS_PER_LONG 64
a08ea181 CY	60	#ifdef __linux__
	61	#undef START_FILES
	62	#define START_FILES pre-crt0.o /usr/lib64/crt1.o /usr/lib64/crti.o
	63
	64	/* The duplicate -lgcc is intentional in the definition of LIB_STANDARD.
	65	The reason is that some functions in libgcc.a call functions from libc.a,
	66	and some libc.a functions need functions from libgcc.a. Since most
	67	versions of ld are one-pass linkers, we need to mention -lgcc twice,
	68	or else we risk getting unresolved externals. */
	69	#undef LIB_STANDARD
	70	#define LIB_STANDARD -lgcc -lc -lgcc /usr/lib64/crtn.o
	71	#endif
	72
ffcd05c3 DL	73	#ifndef _LP64
	74	#define _LP64 /* Done on Alpha -- not sure if it
	75	should be here. -- fx */
	76	#endif
	77	#endif
ab5796a9 MB	78
	79	/* arch-tag: 0a6f7882-33fd-4811-9832-7466c51e50f7
	80	(do not change this comment) */