Date: Mon, 31 Dec 2001 04:36:33 -0500 From: Mike Barcroft <mike@freebsd.org> To: Peter Pentchev <roam@ringlet.net> Cc: Mike Smith <msmith@freebsd.org>, arch@freebsd.org Subject: kldload(2) family (was Re: loadable aio) Message-ID: <20011231043633.E45114@espresso.q9media.com> In-Reply-To: <20011231105940.B3512@straylight.oblivion.bg>; from roam@ringlet.net on Mon, Dec 31, 2001 at 10:59:40AM %2B0200 References: <20011230215630.B45114@espresso.q9media.com> <200112310508.fBV58MI03596@mass.dis.org> <20011231034807.D45114@espresso.q9media.com> <20011231105940.B3512@straylight.oblivion.bg>
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[Moved to -arch, BCC'd to -hackers.] Peter Pentchev <roam@ringlet.net> writes: > Okay, so it's not documented in the manual, but one look at the source > should suffice :) :( > As Mike said, there is a search path. However, the current directory > is tried first. If a file by that name is not found in the current > directory, the search path is, well, searched ;) The search path > is available in the kern.module_path sysctl or in the output of > 'kldconfig -r'. Oh no, it's worse than I feared. > This is similar to what shells have been doing for decades, with > the added feature of an implicit '.' at the start of the search path. Yes, the usual approach shells take is much better designed. Here's how I would design this interface: o _kldload(2) accepts a file path (similar to open(2)) o kldunload(2) accepts a filename (no path) o kldload(3) accepts a module name (procfs), file name (procfs.ko), or file path (/boot/kernel/procfs.ko). o Search paths for kldload(3) are controlled by the environment variable `KLDPATH' (similar to MANPATH and PATH). o When kldload(3) locates a module file, it calls _kldload(2). o kldload(8) uses kldload(3) o kldunload(8) uses kldunload(2) The main advantage of this design is that it allows a Unix programmer to utilize it. :) Best regards, Mike Barcroft To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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