1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22
23/*
24 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
25 * Use is subject to license terms.
26 */
27
28#ifndef _SYS_ISA_DEFS_H
29#define _SYS_ISA_DEFS_H
30
31/*
32 * This header file serves to group a set of well known defines and to
33 * set these for each instruction set architecture. These defines may
34 * be divided into two groups; characteristics of the processor and
35 * implementation choices for Solaris on a processor.
36 *
37 * Processor Characteristics:
38 *
39 * _LITTLE_ENDIAN / _BIG_ENDIAN:
40 * The natural byte order of the processor. A pointer to an int points
41 * to the least/most significant byte of that int.
42 *
43 * _STACK_GROWS_UPWARD / _STACK_GROWS_DOWNWARD:
44 * The processor specific direction of stack growth. A push onto the
45 * stack increases/decreases the stack pointer, so it stores data at
46 * successively higher/lower addresses. (Stackless machines ignored
47 * without regrets).
48 *
49 * _LONG_LONG_HTOL / _LONG_LONG_LTOH:
50 * A pointer to a long long points to the most/least significant long
51 * within that long long.
52 *
53 * _BIT_FIELDS_HTOL / _BIT_FIELDS_LTOH:
54 * The C compiler assigns bit fields from the high/low to the low/high end
55 * of an int (most to least significant vs. least to most significant).
56 *
57 * _IEEE_754:
58 * The processor (or supported implementations of the processor)
59 * supports the ieee-754 floating point standard. No other floating
60 * point standards are supported (or significant). Any other supported
61 * floating point formats are expected to be cased on the ISA processor
62 * symbol.
63 *
64 * _CHAR_IS_UNSIGNED / _CHAR_IS_SIGNED:
65 * The C Compiler implements objects of type `char' as `unsigned' or
66 * `signed' respectively. This is really an implementation choice of
67 * the compiler writer, but it is specified in the ABI and tends to
68 * be uniform across compilers for an instruction set architecture.
69 * Hence, it has the properties of a processor characteristic.
70 *
71 * _CHAR_ALIGNMENT / _SHORT_ALIGNMENT / _INT_ALIGNMENT / _LONG_ALIGNMENT /
72 * _LONG_LONG_ALIGNMENT / _DOUBLE_ALIGNMENT / _LONG_DOUBLE_ALIGNMENT /
73 * _POINTER_ALIGNMENT / _FLOAT_ALIGNMENT:
74 * The ABI defines alignment requirements of each of the primitive
75 * object types. Some, if not all, may be hardware requirements as
76 * well. The values are expressed in "byte-alignment" units.
77 *
78 * _MAX_ALIGNMENT:
79 * The most stringent alignment requirement as specified by the ABI.
80 * Equal to the maximum of all the above _XXX_ALIGNMENT values.
81 *
82 * _ALIGNMENT_REQUIRED:
83 * True or false (1 or 0) whether or not the hardware requires the ABI
84 * alignment.
85 *
86 * _LONG_LONG_ALIGNMENT_32
87 * The 32-bit ABI supported by a 64-bit kernel may have different
88 * alignment requirements for primitive object types. The value of this
89 * identifier is expressed in "byte-alignment" units.
90 *
91 * _HAVE_CPUID_INSN
92 * This indicates that the architecture supports the 'cpuid'
93 * instruction as defined by Intel. (Intel allows other vendors
94 * to extend the instruction for their own purposes.)
95 *
96 *
97 * Implementation Choices:
98 *
99 * _ILP32 / _LP64:
100 * This specifies the compiler data type implementation as specified in
101 * the relevant ABI. The choice between these is strongly influenced
102 * by the underlying hardware, but is not absolutely tied to it.
103 * Currently only two data type models are supported:
104 *
105 * _ILP32:
106 * Int/Long/Pointer are 32 bits. This is the historical UNIX
107 * and Solaris implementation. Due to its historical standing,
108 * this is the default case.
109 *
110 * _LP64:
111 * Long/Pointer are 64 bits, Int is 32 bits. This is the chosen
112 * implementation for 64-bit ABIs such as SPARC V9.
113 *
114 * _I32LPx:
115 * A compilation environment where 'int' is 32-bit, and
116 * longs and pointers are simply the same size.
117 *
118 * In all cases, Char is 8 bits and Short is 16 bits.
119 *
120 * _SUNOS_VTOC_8 / _SUNOS_VTOC_16 / _SVR4_VTOC_16:
121 * This specifies the form of the disk VTOC (or label):
122 *
123 * _SUNOS_VTOC_8:
124 * This is a VTOC form which is upwardly compatible with the
125 * SunOS 4.x disk label and allows 8 partitions per disk.
126 *
127 * _SUNOS_VTOC_16:
128 * In this format the incore vtoc image matches the ondisk
129 * version. It allows 16 slices per disk, and is not
130 * compatible with the SunOS 4.x disk label.
131 *
132 * Note that these are not the only two VTOC forms possible and
133 * additional forms may be added. One possible form would be the
134 * SVr4 VTOC form. The symbol for that is reserved now, although
135 * it is not implemented.
136 *
137 * _SVR4_VTOC_16:
138 * This VTOC form is compatible with the System V Release 4
139 * VTOC (as implemented on the SVr4 Intel and 3b ports) with
140 * 16 partitions per disk.
141 *
142 *
143 * _DMA_USES_PHYSADDR / _DMA_USES_VIRTADDR
144 * This describes the type of addresses used by system DMA:
145 *
146 * _DMA_USES_PHYSADDR:
147 * This type of DMA, used in the x86 implementation,
148 * requires physical addresses for DMA buffers. The 24-bit
149 * addresses used by some legacy boards is the source of the
150 * "low-memory" (<16MB) requirement for some devices using DMA.
151 *
152 * _DMA_USES_VIRTADDR:
153 * This method of DMA allows the use of virtual addresses for
154 * DMA transfers.
155 *
156 * _FIRMWARE_NEEDS_FDISK / _NO_FDISK_PRESENT
157 * This indicates the presence/absence of an fdisk table.
158 *
159 * _FIRMWARE_NEEDS_FDISK
160 * The fdisk table is required by system firmware. If present,
161 * it allows a disk to be subdivided into multiple fdisk
162 * partitions, each of which is equivalent to a separate,
163 * virtual disk. This enables the co-existence of multiple
164 * operating systems on a shared hard disk.
165 *
166 * _NO_FDISK_PRESENT
167 * If the fdisk table is absent, it is assumed that the entire
168 * media is allocated for a single operating system.
169 *
170 * _HAVE_TEM_FIRMWARE
171 * Defined if this architecture has the (fallback) option of
172 * using prom_* calls for doing I/O if a suitable kernel driver
173 * is not available to do it.
174 *
175 * _DONT_USE_1275_GENERIC_NAMES
176 * Controls whether or not device tree node names should
177 * comply with the IEEE 1275 "Generic Names" Recommended
178 * Practice. With _DONT_USE_GENERIC_NAMES, device-specific
179 * names identifying the particular device will be used.
180 *
181 * __i386_COMPAT
182 * This indicates whether the i386 ABI is supported as a *non-native*
183 * mode for the platform. When this symbol is defined:
184 * - 32-bit xstat-style system calls are enabled
185 * - 32-bit xmknod-style system calls are enabled
186 * - 32-bit system calls use i386 sizes -and- alignments
187 *
188 * Note that this is NOT defined for the i386 native environment!
189 *
190 * __x86
191 * This is ONLY a synonym for defined(__i386) || defined(__amd64)
192 * which is useful only insofar as these two architectures share
193 * common attributes. Analogous to __sparc.
194 *
195 * _PSM_MODULES
196 * This indicates whether or not the implementation uses PSM
197 * modules for processor support, reading /etc/mach from inside
198 * the kernel to extract a list.
199 *
200 * _RTC_CONFIG
201 * This indicates whether or not the implementation uses /etc/rtc_config
202 * to configure the real-time clock in the kernel.
203 *
204 * _UNIX_KRTLD
205 * This indicates that the implementation uses a dynamically
206 * linked unix + krtld to form the core kernel image at boot
207 * time, or (in the absence of this symbol) a prelinked kernel image.
208 *
209 * _OBP
210 * This indicates the firmware interface is OBP.
211 *
212 * _SOFT_HOSTID
213 * This indicates that the implementation obtains the hostid
214 * from the file /etc/hostid, rather than from hardware.
215 */
216
217#ifdef __NetBSD__
218
219#include <sys/cdefs.h>
220
221#ifdef _LP64
222__CTASSERT(sizeof(int) == 4);
223__CTASSERT(sizeof(long) == 8);
224__CTASSERT(sizeof(void *) == 8);
225#else
226/*
227 * For 64-bit architectures the compiler defines _LP64. All else in
228 * NetBSD is ILP32 for now.
229 */
230__CTASSERT(sizeof(int) == 4);
231__CTASSERT(sizeof(long) == 4);
232__CTASSERT(sizeof(void *) == 4);
233#define _ILP32 1
234#endif
235
236#else /* __NetBSD__ */
237
238#ifdef __cplusplus
239extern "C" {
240#endif
241
242/*
243 * The following set of definitions characterize Solaris on AMD's
244 * 64-bit systems.
245 */
246#if defined(__x86_64) || defined(__amd64)
247
248#if !defined(__amd64)
249#define __amd64 /* preferred guard */
250#endif
251
252#if !defined(__x86)
253#define __x86
254#endif
255
256/*
257 * Define the appropriate "processor characteristics"
258 */
259#ifdef illumos
260#define _LITTLE_ENDIAN
261#endif
262#define _STACK_GROWS_DOWNWARD
263#define _LONG_LONG_LTOH
264#define _BIT_FIELDS_LTOH
265#define _IEEE_754
266#define _CHAR_IS_SIGNED
267#define _BOOL_ALIGNMENT 1
268#define _CHAR_ALIGNMENT 1
269#define _SHORT_ALIGNMENT 2
270#define _INT_ALIGNMENT 4
271#define _FLOAT_ALIGNMENT 4
272#define _FLOAT_COMPLEX_ALIGNMENT 4
273#define _LONG_ALIGNMENT 8
274#define _LONG_LONG_ALIGNMENT 8
275#define _DOUBLE_ALIGNMENT 8
276#define _DOUBLE_COMPLEX_ALIGNMENT 8
277#define _LONG_DOUBLE_ALIGNMENT 16
278#define _LONG_DOUBLE_COMPLEX_ALIGNMENT 16
279#define _POINTER_ALIGNMENT 8
280#define _MAX_ALIGNMENT 16
281#define _ALIGNMENT_REQUIRED 1
282
283/*
284 * Different alignment constraints for the i386 ABI in compatibility mode
285 */
286#define _LONG_LONG_ALIGNMENT_32 4
287
288/*
289 * Define the appropriate "implementation choices".
290 */
291#if !defined(_LP64)
292#define _LP64
293#endif
294#if !defined(_I32LPx) && defined(_KERNEL)
295#define _I32LPx
296#endif
297#define _MULTI_DATAMODEL
298#define _SUNOS_VTOC_16
299#define _DMA_USES_PHYSADDR
300#define _FIRMWARE_NEEDS_FDISK
301#define __i386_COMPAT
302#define _PSM_MODULES
303#define _RTC_CONFIG
304#define _SOFT_HOSTID
305#define _DONT_USE_1275_GENERIC_NAMES
306#define _HAVE_CPUID_INSN
307
308/*
309 * The feature test macro __i386 is generic for all processors implementing
310 * the Intel 386 instruction set or a superset of it. Specifically, this
311 * includes all members of the 386, 486, and Pentium family of processors.
312 */
313#elif defined(__i386) || defined(__i386__)
314
315#if !defined(__i386)
316#define __i386
317#endif
318
319#if !defined(__x86)
320#define __x86
321#endif
322
323/*
324 * Define the appropriate "processor characteristics"
325 */
326#ifdef illumos
327#define _LITTLE_ENDIAN
328#endif
329#define _STACK_GROWS_DOWNWARD
330#define _LONG_LONG_LTOH
331#define _BIT_FIELDS_LTOH
332#define _IEEE_754
333#define _CHAR_IS_SIGNED
334#define _BOOL_ALIGNMENT 1
335#define _CHAR_ALIGNMENT 1
336#define _SHORT_ALIGNMENT 2
337#define _INT_ALIGNMENT 4
338#define _FLOAT_ALIGNMENT 4
339#define _FLOAT_COMPLEX_ALIGNMENT 4
340#define _LONG_ALIGNMENT 4
341#define _LONG_LONG_ALIGNMENT 4
342#define _DOUBLE_ALIGNMENT 4
343#define _DOUBLE_COMPLEX_ALIGNMENT 4
344#define _LONG_DOUBLE_ALIGNMENT 4
345#define _LONG_DOUBLE_COMPLEX_ALIGNMENT 4
346#define _POINTER_ALIGNMENT 4
347#define _MAX_ALIGNMENT 4
348#define _ALIGNMENT_REQUIRED 0
349
350#define _LONG_LONG_ALIGNMENT_32 _LONG_LONG_ALIGNMENT
351
352/*
353 * Define the appropriate "implementation choices".
354 */
355#if !defined(_ILP32)
356#define _ILP32
357#endif
358#if !defined(_I32LPx) && defined(_KERNEL)
359#define _I32LPx
360#endif
361#define _SUNOS_VTOC_16
362#define _DMA_USES_PHYSADDR
363#define _FIRMWARE_NEEDS_FDISK
364#define _PSM_MODULES
365#define _RTC_CONFIG
366#define _SOFT_HOSTID
367#define _DONT_USE_1275_GENERIC_NAMES
368#define _HAVE_CPUID_INSN
369
370#elif defined(__aarch64__)
371
372/*
373 * Define the appropriate "processor characteristics"
374 */
375#define _STACK_GROWS_DOWNWARD
376#define _LONG_LONG_LTOH
377#define _BIT_FIELDS_LTOH
378#define _IEEE_754
379#define _CHAR_IS_UNSIGNED
380#define _BOOL_ALIGNMENT 1
381#define _CHAR_ALIGNMENT 1
382#define _SHORT_ALIGNMENT 2
383#define _INT_ALIGNMENT 4
384#define _FLOAT_ALIGNMENT 4
385#define _FLOAT_COMPLEX_ALIGNMENT 4
386#define _LONG_ALIGNMENT 8
387#define _LONG_LONG_ALIGNMENT 8
388#define _DOUBLE_ALIGNMENT 8
389#define _DOUBLE_COMPLEX_ALIGNMENT 8
390#define _LONG_DOUBLE_ALIGNMENT 16
391#define _LONG_DOUBLE_COMPLEX_ALIGNMENT 16
392#define _POINTER_ALIGNMENT 8
393#define _MAX_ALIGNMENT 16
394#define _ALIGNMENT_REQUIRED 1
395
396#define _LONG_LONG_ALIGNMENT_32 _LONG_LONG_ALIGNMENT
397
398/*
399 * Define the appropriate "implementation choices"
400 */
401#if !defined(_LP64)
402#define _LP64
403#endif
404#define _SUNOS_VTOC_16
405#define _DMA_USES_PHYSADDR
406#define _FIRMWARE_NEEDS_FDISK
407#define _PSM_MODULES
408#define _RTC_CONFIG
409#define _DONT_USE_1275_GENERIC_NAMES
410#define _HAVE_CPUID_INSN
411
412#elif defined(__riscv__)
413
414/*
415 * Define the appropriate "processor characteristics"
416 */
417#define _STACK_GROWS_DOWNWARD
418#define _LONG_LONG_LTOH
419#define _BIT_FIELDS_LTOH
420#define _IEEE_754
421#define _CHAR_IS_UNSIGNED
422#define _BOOL_ALIGNMENT 1
423#define _CHAR_ALIGNMENT 1
424#define _SHORT_ALIGNMENT 2
425#define _INT_ALIGNMENT 4
426#define _FLOAT_ALIGNMENT 4
427#define _FLOAT_COMPLEX_ALIGNMENT 4
428#define _LONG_ALIGNMENT 8
429#define _LONG_LONG_ALIGNMENT 8
430#define _DOUBLE_ALIGNMENT 8
431#define _DOUBLE_COMPLEX_ALIGNMENT 8
432#define _LONG_DOUBLE_ALIGNMENT 16
433#define _LONG_DOUBLE_COMPLEX_ALIGNMENT 16
434#define _POINTER_ALIGNMENT 8
435#define _MAX_ALIGNMENT 16
436#define _ALIGNMENT_REQUIRED 1
437
438#define _LONG_LONG_ALIGNMENT_32 _LONG_LONG_ALIGNMENT
439
440/*
441 * Define the appropriate "implementation choices"
442 */
443#if !defined(_LP64)
444#define _LP64
445#endif
446#define _SUNOS_VTOC_16
447#define _DMA_USES_PHYSADDR
448#define _FIRMWARE_NEEDS_FDISK
449#define _PSM_MODULES
450#define _RTC_CONFIG
451#define _DONT_USE_1275_GENERIC_NAMES
452#define _HAVE_CPUID_INSN
453
454#elif defined(__arm__)
455
456/*
457 * Define the appropriate "processor characteristics"
458 */
459#define _STACK_GROWS_DOWNWARD
460#define _LONG_LONG_LTOH
461#define _BIT_FIELDS_LTOH
462#define _IEEE_754
463#define _CHAR_IS_SIGNED
464#define _BOOL_ALIGNMENT 1
465#define _CHAR_ALIGNMENT 1
466#define _SHORT_ALIGNMENT 2
467#define _INT_ALIGNMENT 4
468#define _FLOAT_ALIGNMENT 4
469#define _FLOAT_COMPLEX_ALIGNMENT 4
470#define _LONG_ALIGNMENT 4
471#define _LONG_LONG_ALIGNMENT 4
472#define _DOUBLE_ALIGNMENT 4
473#define _DOUBLE_COMPLEX_ALIGNMENT 4
474#define _LONG_DOUBLE_ALIGNMENT 4
475#define _LONG_DOUBLE_COMPLEX_ALIGNMENT 4
476#define _POINTER_ALIGNMENT 4
477#define _MAX_ALIGNMENT 4
478#define _ALIGNMENT_REQUIRED 0
479
480#define _LONG_LONG_ALIGNMENT_32 _LONG_LONG_ALIGNMENT
481
482/*
483 * Define the appropriate "implementation choices".
484 */
485#if !defined(_ILP32)
486#define _ILP32
487#endif
488#if !defined(_I32LPx) && defined(_KERNEL)
489#define _I32LPx
490#endif
491#define _SUNOS_VTOC_16
492#define _DMA_USES_PHYSADDR
493#define _FIRMWARE_NEEDS_FDISK
494#define _PSM_MODULES
495#define _RTC_CONFIG
496#define _DONT_USE_1275_GENERIC_NAMES
497#define _HAVE_CPUID_INSN
498
499#elif defined(__mips__)
500
501/*
502 * Define the appropriate "processor characteristics"
503 */
504#define _STACK_GROWS_DOWNWARD
505#define _LONG_LONG_LTOH
506#define _BIT_FIELDS_LTOH
507#define _IEEE_754
508#define _CHAR_IS_SIGNED
509#define _BOOL_ALIGNMENT 1
510#define _CHAR_ALIGNMENT 1
511#define _SHORT_ALIGNMENT 2
512#define _INT_ALIGNMENT 4
513#define _FLOAT_ALIGNMENT 4
514#define _FLOAT_COMPLEX_ALIGNMENT 4
515#if defined(__mips_n64)
516#define _LONG_ALIGNMENT 8
517#define _LONG_LONG_ALIGNMENT 8
518#define _DOUBLE_ALIGNMENT 8
519#define _DOUBLE_COMPLEX_ALIGNMENT 8
520#define _LONG_DOUBLE_ALIGNMENT 8
521#define _LONG_DOUBLE_COMPLEX_ALIGNMENT 8
522#define _POINTER_ALIGNMENT 8
523#define _MAX_ALIGNMENT 8
524#define _ALIGNMENT_REQUIRED 0
525
526#define _LONG_LONG_ALIGNMENT_32 _INT_ALIGNMENT
527/*
528 * Define the appropriate "implementation choices".
529 */
530#if !defined(_LP64)
531#define _LP64
532#endif
533#else
534#define _LONG_ALIGNMENT 4
535#define _LONG_LONG_ALIGNMENT 4
536#define _DOUBLE_ALIGNMENT 4
537#define _DOUBLE_COMPLEX_ALIGNMENT 4
538#define _LONG_DOUBLE_ALIGNMENT 4
539#define _LONG_DOUBLE_COMPLEX_ALIGNMENT 4
540#define _POINTER_ALIGNMENT 4
541#define _MAX_ALIGNMENT 4
542#define _ALIGNMENT_REQUIRED 0
543
544#define _LONG_LONG_ALIGNMENT_32 _LONG_LONG_ALIGNMENT
545
546/*
547 * Define the appropriate "implementation choices".
548 */
549#define _ILP32
550#if !defined(_I32LPx) && defined(_KERNEL)
551#define _I32LPx
552#endif
553#endif
554#define _SUNOS_VTOC_16
555#define _DMA_USES_PHYSADDR
556#define _FIRMWARE_NEEDS_FDISK
557#define _PSM_MODULES
558#define _RTC_CONFIG
559#define _DONT_USE_1275_GENERIC_NAMES
560#define _HAVE_CPUID_INSN
561
562#elif defined(__powerpc__)
563
564#if defined(__BIG_ENDIAN__)
565#define _BIT_FIELDS_HTOL
566#else
567#define _BIT_FIELDS_LTOH
568#endif
569
570/*
571 * The following set of definitions characterize the Solaris on SPARC systems.
572 *
573 * The symbol __sparc indicates any of the SPARC family of processor
574 * architectures. This includes SPARC V7, SPARC V8 and SPARC V9.
575 *
576 * The symbol __sparcv8 indicates the 32-bit SPARC V8 architecture as defined
577 * by Version 8 of the SPARC Architecture Manual. (SPARC V7 is close enough
578 * to SPARC V8 for the former to be subsumed into the latter definition.)
579 *
580 * The symbol __sparcv9 indicates the 64-bit SPARC V9 architecture as defined
581 * by Version 9 of the SPARC Architecture Manual.
582 *
583 * The symbols __sparcv8 and __sparcv9 are mutually exclusive, and are only
584 * relevant when the symbol __sparc is defined.
585 */
586/*
587 * XXX Due to the existence of 5110166, "defined(__sparcv9)" needs to be added
588 * to support backwards builds. This workaround should be removed in s10_71.
589 */
590#elif defined(__sparc) || defined(__sparcv9) || defined(__sparc__)
591#if !defined(__sparc)
592#define __sparc
593#endif
594
595/*
596 * You can be 32-bit or 64-bit, but not both at the same time.
597 */
598#if defined(__sparcv8) && defined(__sparcv9)
599#error "SPARC Versions 8 and 9 are mutually exclusive choices"
600#endif
601
602/*
603 * Existing compilers do not set __sparcv8. Years will transpire before
604 * the compilers can be depended on to set the feature test macro. In
605 * the interim, we'll set it here on the basis of historical behaviour;
606 * if you haven't asked for SPARC V9, then you must've meant SPARC V8.
607 */
608#if !defined(__sparcv9) && !defined(__sparcv8)
609#define __sparcv8
610#endif
611
612/*
613 * Define the appropriate "processor characteristics" shared between
614 * all Solaris on SPARC systems.
615 */
616#ifdef illumos
617#define _BIG_ENDIAN
618#endif
619#define _STACK_GROWS_DOWNWARD
620#define _LONG_LONG_HTOL
621#define _BIT_FIELDS_HTOL
622#define _IEEE_754
623#define _CHAR_IS_SIGNED
624#define _BOOL_ALIGNMENT 1
625#define _CHAR_ALIGNMENT 1
626#define _SHORT_ALIGNMENT 2
627#define _INT_ALIGNMENT 4
628#define _FLOAT_ALIGNMENT 4
629#define _FLOAT_COMPLEX_ALIGNMENT 4
630#define _LONG_LONG_ALIGNMENT 8
631#define _DOUBLE_ALIGNMENT 8
632#define _DOUBLE_COMPLEX_ALIGNMENT 8
633#define _ALIGNMENT_REQUIRED 1
634
635/*
636 * Define the appropriate "implementation choices" shared between versions.
637 */
638#define _SUNOS_VTOC_8
639#define _DMA_USES_VIRTADDR
640#define _NO_FDISK_PRESENT
641#define _HAVE_TEM_FIRMWARE
642#define _OBP
643
644/*
645 * The following set of definitions characterize the implementation of
646 * 32-bit Solaris on SPARC V8 systems.
647 */
648#if defined(__sparcv8)
649
650/*
651 * Define the appropriate "processor characteristics"
652 */
653#define _LONG_ALIGNMENT 4
654#define _LONG_DOUBLE_ALIGNMENT 8
655#define _LONG_DOUBLE_COMPLEX_ALIGNMENT 8
656#define _POINTER_ALIGNMENT 4
657#define _MAX_ALIGNMENT 8
658
659#define _LONG_LONG_ALIGNMENT_32 _LONG_LONG_ALIGNMENT
660
661/*
662 * Define the appropriate "implementation choices"
663 */
664#define _ILP32
665#if !defined(_I32LPx) && defined(_KERNEL)
666#define _I32LPx
667#endif
668
669/*
670 * The following set of definitions characterize the implementation of
671 * 64-bit Solaris on SPARC V9 systems.
672 */
673#elif defined(__sparcv9)
674
675/*
676 * Define the appropriate "processor characteristics"
677 */
678#define _LONG_ALIGNMENT 8
679#define _LONG_DOUBLE_ALIGNMENT 16
680#define _LONG_DOUBLE_COMPLEX_ALIGNMENT 16
681#define _POINTER_ALIGNMENT 8
682#define _MAX_ALIGNMENT 16
683
684#define _LONG_LONG_ALIGNMENT_32 _LONG_LONG_ALIGNMENT
685
686/*
687 * Define the appropriate "implementation choices"
688 */
689#if !defined(_LP64)
690#define _LP64
691#endif
692#if !defined(_I32LPx)
693#define _I32LPx
694#endif
695#define _MULTI_DATAMODEL
696
697#else
698#error "unknown SPARC version"
699#endif
700
701/*
702 * #error is strictly ansi-C, but works as well as anything for K&R systems.
703 */
704#else
705#error "ISA not supported"
706#endif
707
708#if defined(_ILP32) && defined(_LP64)
709#error "Both _ILP32 and _LP64 are defined"
710#endif
711
712#ifdef __cplusplus
713}
714#endif
715
716#endif /* __NetBSD__ */
717
718#endif /* _SYS_ISA_DEFS_H */
719