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