/* * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * Portions Copyright (c) 1999 Apple Computer, Inc. All Rights * Reserved. This file contains Original Code and/or Modifications of * Original Code as defined in and that are subject to the Apple Public * Source License Version 1.1 (the "License"). You may not use this file * except in compliance with the License. Please obtain a copy of the * License at http://www.apple.com/publicsource and read it before using * this file. * * The Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ #ifndef _MACH_O_ARCH_H_ #define _MACH_O_ARCH_H_ /* * Copyright (c) 1997 Apple Computer, Inc. * * Functions that deal with information about architectures. * */ #include <mach/machine.h> #include <architecture/byte_order.h> /* The NXArchInfo structs contain the architectures symbolic name * (such as "ppc"), its CPU type and CPU subtype as defined in * mach/machine.h, the byte order for the architecture, and a * describing string (such as "PowerPC"). * There will both be entries for specific CPUs (such as ppc604e) as * well as generic "family" entries (such as ppc). */ typedef struct { const char *name; cpu_type_t cputype; cpu_subtype_t cpusubtype; enum NXByteOrder byteorder; const char *description; } NXArchInfo; #if __cplusplus extern "C" { #endif /* __cplusplus */ /* NXGetAllArchInfos() returns a pointer to an array of all known * NXArchInfo structures. The last NXArchInfo is marked by a NULL name. */ extern const NXArchInfo *NXGetAllArchInfos(void); /* NXGetLocalArchInfo() returns the NXArchInfo for the local host, or NULL * if none is known. */ extern const NXArchInfo *NXGetLocalArchInfo(void); /* NXGetArchInfoFromName() and NXGetArchInfoFromCpuType() return the * NXArchInfo from the architecture's name or cputype/cpusubtype * combination. A cpusubtype of CPU_SUBTYPE_MULTIPLE can be used * to request the most general NXArchInfo known for the given cputype. * NULL is returned if no matching NXArchInfo can be found. */ extern const NXArchInfo *NXGetArchInfoFromName(const char *name); extern const NXArchInfo *NXGetArchInfoFromCpuType(cpu_type_t cputype, cpu_subtype_t cpusubtype); /* NXFindBestFatArch() is passed a cputype and cpusubtype and a set of * fat_arch structs and selects the best one that matches (if any) and returns * a pointer to that fat_arch struct (or NULL). The fat_arch structs must be * in the host byte order and correct such that the fat_archs really points to * enough memory for nfat_arch structs. It is possible that this routine could * fail if new cputypes or cpusubtypes are added and an old version of this * routine is used. But if there is an exact match between the cputype and * cpusubtype and one of the fat_arch structs this routine will always succeed. */ extern struct fat_arch *NXFindBestFatArch(cpu_type_t cputype, cpu_subtype_t cpusubtype, struct fat_arch *fat_archs, unsigned long nfat_archs); /* NXCombineCpuSubtypes() returns the resulting cpusubtype when combining two * different cpusubtypes for the specified cputype. If the two cpusubtypes * can't be combined (the specific subtypes are mutually exclusive) -1 is * returned indicating it is an error to combine them. This can also fail and * return -1 if new cputypes or cpusubtypes are added and an old version of * this routine is used. But if the cpusubtypes are the same they can always * be combined and this routine will return the cpusubtype pass in. */ extern cpu_subtype_t NXCombineCpuSubtypes(cpu_type_t cputype, cpu_subtype_t cpusubtype1, cpu_subtype_t cpusubtype2); #if __cplusplus }; #endif /* __cplusplus */ #endif /* _MACH_O_ARCH_H_ */