1/*- 2 * Copyright (c) 2003 Jake Burkholder <jake@freebsd.org>. 3 * Copyright (c) 2003 Marcel Moolenaar 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 * $FreeBSD: releng/11.0/lib/libthr/arch/sparc64/include/pthread_md.h 277490 2015-01-21 16:41:05Z andrew $ 28 */ 29 30/* 31 * Machine-dependent thread prototypes/definitions. 32 */ 33#ifndef _PTHREAD_MD_H_ 34#define _PTHREAD_MD_H_ 35 36#include <stddef.h> 37 38#define CPU_SPINWAIT 39 40#define DTV_OFFSET offsetof(struct tcb, tcb_dtv) 41 42/* 43 * Variant II tcb, first two members are required by rtld. 44 * %g7 points to the structure. 45 */ 46struct tcb { 47 struct tcb *tcb_self; /* required by rtld */ 48 void *tcb_dtv; /* required by rtld */ 49 struct pthread *tcb_thread; /* our hook */ 50 void *tcb_spare[1]; 51}; 52 53/* Called from the thread to set its private data. */ 54static __inline void 55_tcb_set(struct tcb *tcb) 56{ 57 58 __asm __volatile("mov %0, %%g7" : : "r" (tcb)); 59} 60 61static __inline struct tcb * 62_tcb_get(void) 63{ 64 register struct tcb *tp __asm("%g7"); 65 66 return (tp); 67} 68 69static __inline struct pthread * 70_get_curthread(void) 71{ 72 73 return (_tcb_get()->tcb_thread); 74} 75 76#define HAS__UMTX_OP_ERR 1 77 78#endif /* _PTHREAD_MD_H_ */ 79