/* * Copyright (c) 2003-2004 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * 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 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ 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, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* * Copyright 1996 1995 by Open Software Foundation, Inc. 1997 1996 1995 1994 1993 1992 1991 * All Rights Reserved * * Permission to use, copy, modify, and distribute this software and * its documentation for any purpose and without fee is hereby granted, * provided that the above copyright notice appears in all copies and * that both the copyright notice and this permission notice appear in * supporting documentation. * * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE. * * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT, * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /* * MkLinux */ /* Machine-dependent definitions for pthread internals. */ #ifndef _POSIX_PTHREAD_MACHDEP_H #define _POSIX_PTHREAD_MACHDEP_H #ifdef __LP64__ #define _PTHREAD_TSD_OFFSET 0x60 #else #define _PTHREAD_TSD_OFFSET 0x48 #endif /* __LP64__ */ #ifndef __ASSEMBLER__ #include <System/machine/cpu_capabilities.h> /* ** Define macros for inline pthread_getspecific() usage. ** We reserve a number of slots for Apple internal use. ** This number can grow dynamically, no need to fix it. */ /* This header contains pre defined thread specific keys */ /* 0 is used for pthread_self */ #define _PTHREAD_TSD_SLOT_PTHREAD_SELF 0 /* Keys 1- 9 for use by dyld, directly or indirectly */ #define _PTHREAD_TSD_SLOT_DYLD_1 1 #define _PTHREAD_TSD_SLOT_DYLD_2 2 #define _PTHREAD_TSD_SLOT_DYLD_3 3 #define _PTHREAD_TSD_RESERVED_SLOT_COUNT 4 /* Keys 10 - 29 are for Libc/Libsystem internal ussage */ /* used as __pthread_tsd_first + Num */ #define __PTK_LIBC_LOCALE_KEY 10 #define __PTK_LIBC_TTYNAME_KEY 11 #define __PTK_LIBC_LOCALTIME_KEY 12 #define __PTK_LIBC_GMTIME_KEY 13 /* Keys 30-255 for Non Libsystem usage */ #define _PTHREAD_TSD_SLOT_OPENGL 30 /* backwards compat sake */ #define __PTK_FRAMEWORK_OPENGL_KEY 30 /* ** Define macros for inline pthread_getspecific() usage. ** We reserve a number of slots for Apple internal use. ** This number can grow dynamically, no need to fix it. */ #if defined(__cplusplus) extern "C" { #endif extern void *pthread_getspecific(unsigned long); int pthread_key_init_np(int, void (*)(void *)); #if defined(__cplusplus) } #endif typedef int pthread_lock_t; inline static int _pthread_has_direct_tsd(void) { #if defined(__ppc__) int *caps = (int *)_COMM_PAGE_CPU_CAPABILITIES; if (*caps & kFastThreadLocalStorage) { return 1; } else { return 0; } #else return 1; #endif } inline static void * _pthread_getspecific_direct(unsigned long slot) { void *ret; #if defined(__OPTIMIZE__) #if defined(__i386__) || defined(__x86_64__) asm volatile("mov %%gs:%P1, %0" : "=r" (ret) : "i" (slot * sizeof(void *) + _PTHREAD_TSD_OFFSET)); #elif defined(__ppc__) void **__pthread_tsd; asm volatile("mfspr %0, 259" : "=r" (__pthread_tsd)); ret = __pthread_tsd[slot + (_PTHREAD_TSD_OFFSET / sizeof(void *))]; #elif defined(__ppc64__) register void **__pthread_tsd asm ("r13"); ret = __pthread_tsd[slot + (_PTHREAD_TSD_OFFSET / sizeof(void *))]; #else #error no pthread_getspecific_direct implementation for this arch #endif #else /* ! __OPTIMIZATION__ */ ret = pthread_getspecific(slot); #endif return ret; } #define LOCK_INIT(l) ((l) = 0) #define LOCK_INITIALIZER 0 #endif /* ! __ASSEMBLER__ */ #endif /* _POSIX_PTHREAD_MACHDEP_H */