\"      $NetBSD: _lwp_makecontext.3,v 1.4 2008/04/30 13:10:50 martin Exp $
\"
\" Copyright (c) 2003 The NetBSD Foundation, Inc.
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\" This code is derived from software contributed to The NetBSD Foundation
\" by Jason R. Thorpe of Wasabi Systems, Inc.
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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 .

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