Date: 05 Oct 2001 01:11:38 +0200 From: Dag-Erling Smorgrav <des@ofug.org> To: Peter Wemm <peter@wemm.org> Cc: arch@FreeBSD.ORG Subject: Re: Removing ptrace(2)'s dependency on procfs(5) Message-ID: <xzpofnnatlh.fsf@flood.ping.uio.no> In-Reply-To: <20011004230154.4A0D63809@overcee.netplex.com.au>
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Peter Wemm <peter@wemm.org> writes:
> Dag-Erling Smorgrav wrote:
> > - move procfs_rwmem() from src/sys/fs/procfs/procfs_mem.c into
> > src/sys/kern/sys_process.c or some other convenient location where
> > both ptrace(2) and procfs(5) can access it (and also move its
> > prototype to a convenient header file).
> It seems to be mostly VM code, perhaps it should be somewhere in vm/*,
> perhaps vm/vm_glue.c ?
procfs_rwmem() was originally derived from code which still resides
(#if 0'd out) in sys_process.c. That's why I felt it was the most
logical place to move it to.
> Would it not make more sense to just make ptrace_{read|write}_*regs()
> in machdep.c rather than have ptrace go via procfs functions and back to
> machdep.c?
That's exactly what I'm saying.
In case you're confused, the PROCFS_ACTION() stuff in procfs_machdep.c
has nothing to do with procfs, it's just a poorly-named macro that
evaluates its arguments and does some error checking.
> This doesn't have to be done all at once. The patch that you posted after
> this one looks like a good start so far.
Yep - at some point the functions should be renamed, and the
prototypes should probably go into <sys/ptrace.h> instead of the bogus
<sys/debug.h> I added.
DES
--
Dag-Erling Smorgrav - des@ofug.org
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