Date: Mon, 5 May 2003 18:07:55 +0400 (MSD) From: Igor Sysoev <is@rambler-co.ru> To: Terry Lambert <tlambert2@mindspring.com> Cc: freebsd-arch@freebsd.org Subject: Re: rfork(RFPROC|RFMEM) Message-ID: <Pine.BSF.4.21.0305051756330.62854-100000@is> In-Reply-To: <3EB66C92.304110A4@mindspring.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Mon, 5 May 2003, Terry Lambert wrote: > Igor Sysoev wrote: > > As stated in http://www.freebsd.org/cgi/query-pr.cgi?pr=50923 > > rfork(RFPROC|RFMEM) in 4.8-STABLE and 5.0-CURRENT requires RFTHREAD flag > > but it is not even mentioned in man page. > > This makes the stack glue implicit. You can also use explicit > stack glue. Most people using the RFPROC flag use explicit > stack glue, i.e. we carry arounbd our own assembly language > trampoline code for stack setup that John Dyson originally > wrote. I think wanting RFPROC to act like Linux's "clone" > system call is probably wrong. What is stack glue ? I use rfork_thread(3) wrapper that allows to setup another stack for rfork()ed process. What RFTHREAD flag does ? By the way linuxthreads port always uses RFTHREAD flag. Igor Sysoev http://sysoev.ru/en/
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.BSF.4.21.0305051756330.62854-100000>