1 /* $NetBSD: pthread_makelwp_netbsd.c,v 1.2 2014/12/17 01:49:08 pooka Exp $ */ 2 3 /*- 4 * Copyright (c) 2001, 2002, 2003, 2006, 2007, 2008 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Nathan J. Williams and Andrew Doran. 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 #include <sys/cdefs.h> 33 __RCSID("$NetBSD: pthread_makelwp_netbsd.c,v 1.2 2014/12/17 01:49:08 pooka Exp $"); 34 35 #include <sys/param.h> 36 37 #include <lwp.h> 38 #include <pthread.h> 39 #include <string.h> 40 41 #include "pthread_int.h" 42 #include "pthread_makelwp.h" 43 44 int 45 pthread__makelwp(void (*start_routine)(void *), void *arg, void *priv, 46 void *stack_base, size_t stack_size, 47 unsigned long flag, lwpid_t *newlid) 48 { 49 ucontext_t uc; 50 51 /* 52 * XXX: most of the following chunk is these days 53 * performed also by _lwp_makecontext(), but there may 54 * be MD differences, so lug everything along for now. 55 */ 56 memset(&uc, 0, sizeof(uc)); 57 _INITCONTEXT_U(&uc); 58 uc.uc_stack.ss_sp = stack_base; 59 uc.uc_stack.ss_size = stack_size; 60 uc.uc_stack.ss_flags = 0; 61 uc.uc_link = NULL; 62 63 _lwp_makecontext(&uc, start_routine, arg, priv, stack_base, stack_size); 64 return _lwp_create(&uc, flag, newlid); 65 } 66