1 /* $NetBSD: lwp_private.h,v 1.2 2024/12/01 08:44:43 skrll Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Klaus Klein. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _M68K_LWP_PRIVATE_H_ 33 #define _M68K_LWP_PRIVATE_H_ 34 35 #include <sys/cdefs.h> 36 #include <sys/tls.h> 37 38 #include <lwp.h> 39 40 #define TLS_TP_OFFSET 0x7000 41 #define TLS_DTV_OFFSET 0x8000 42 43 __CTASSERT(TLS_TP_OFFSET + sizeof(struct tls_tcb) < 0x8000); 44 __CTASSERT(TLS_TP_OFFSET % sizeof(struct tls_tcb) == 0); 45 46 __BEGIN_DECLS 47 48 static __inline struct tls_tcb * 49 __lwp_gettcb_fast(void) 50 { 51 unsigned int __tcb = (unsigned int)_lwp_getprivate(); 52 return (struct tls_tcb *)(uintptr_t) 53 (__tcb - TLS_TP_OFFSET - sizeof(struct tls_tcb)); 54 } 55 56 static inline void 57 __lwp_settcb(struct tls_tcb *__tcb) 58 { 59 __tcb += TLS_TP_OFFSET / sizeof(*__tcb) + 1; 60 _lwp_setprivate(__tcb); 61 } 62 __END_DECLS 63 64 #endif /* !_M68K_LWP_PRIVATE_H_ */ 65