minix/lib/nbsd_libc/gen/_lwp_makecontext.3
Gianluca Guida b6cbf7203b Import unmodified NetBSD libc in trunk
This patch imports the unmodified current version of NetBSD libc.
The NetBSD includes are in /nbsd_include, while the libc code itself is 
split between lib/nbsd_libc and common/lib/libc.
2011-02-14 19:36:03 +00:00

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.\" $NetBSD: _lwp_makecontext.3,v 1.4 2008/04/30 13:10:50 martin Exp $
.\"
.\" Copyright (c) 2003 The NetBSD Foundation, Inc.
.\" All rights reserved.
.\"
.\" This code is derived from software contributed to The NetBSD Foundation
.\" by Jason R. Thorpe of Wasabi Systems, Inc.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\"
.Dd January 16, 2003
.Dt _LWP_MAKECONTEXT 3
.Os
.Sh NAME
.Nm _lwp_makecontext
.Nd create a new initial light-weight process execution context
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In lwp.h
.Ft void
.Fn _lwp_makecontext "ucontext_t *context" "void (*start_routine)(void *)" \
"void *arg" "void *private" "caddr_t stack_base" "size_t stack_size"
.Sh DESCRIPTION
.Fn _lwp_makecontext
initializes the context structure pointed to by
.Fa context
in a manner suitable for using with
.Xr _lwp_create 2 .
The LWP will begin execution at the function specified by
.Fa start_routine
which will be passed a single argument
.Fa arg .
The LWP private data pointer will be set to
.Fa private .
The stack region for the new LWP is specified by the
.Fa stack_base
and
.Fa stack_size
arguments.
.Pp
The signal mask in the context structure is not initialized by
.Fn _lwp_makecontext .
.Sh SEE ALSO
.Xr _lwp_create 2 ,
.Xr _lwp_getprivate 2
.Sh HISTORY
The
.Fn _lwp_create
system call first appeared in
.Nx 2.0 .
.Sh BUGS
The LWP private data pointer is not initialized by the current
implementation of
.Fn _lwp_makecontext .