On 10/11/11 12:36 PM, Arnaud Lacombe wrote:
Hi,
On Tue, Oct 11, 2011 at 3:21 PM, René Ladan<r...@freebsd.org> wrote:
2011/10/11 Garrett Cooper<yaneg...@gmail.com>:
On Tue, Oct 11, 2011 at 10:55 AM, Larry Rosenman<l...@lerctr.org> wrote:
On Wed, 12 Oct 2011, Matt Thyer wrote:
On Oct 12, 2011 3:25 AM, "Larry Rosenman"<l...@lerctr.org> wrote:
I didn't say bug for bug, just not generate stupid errors like the ffs
one.
--
Sent from my Android phone with K-9 Mail. Please excuse my brevity.
Chuck Swiger<cswi...@mac.com> wrote:
On Oct 11, 2011, at 6:59 AM, Larry Rosenman wrote:
We will NOT support clang as the compiler for lsof unless the system
headers work the same way as gcc's do.
That apparently means you won't support clang then, because it's not
intended to be (or ever going to be) fully bug-for-bug "compatible" with
GCC. In this case, at least, clang is reporting legitimate issues which
should be fixed, even if folks continue to build lsof with GCC from now
until the end of days.
The elegant solution would be to avoid this problem altogether by
re-implementation of lsof using interfaces into the kernel that provide
the
required information.
bsdof anyone?
lsof is PORTABLE and available on LOTS of platforms.
We have fstat, but lsof can be used between differing OS's.
We've also asked for Kernel interfaces before, but no one volunteered
to make the KPI for them.
I'm sure if someone(tm) (not me, insufficient knowledge) was
to make interfaces for ALL that lsof needs, Vic would implement it
as it would make his life easier.
It would be nice in general if there were sysctls for accessing this
data as even utilities in base have libkvm magic sprinkled around with
pointer magic by default instead of using the sysctl analogs (I'm
referring to ifconfig, netstat, etc), and as noted by some.. using
libkvm on live memory could be potentially; the only valid usage I can
really think of is when dealing with .
What data does Vic need to grab from the kernel in order to get the
file descriptor data?
Just a quick note that FreeBSD 9 and later also have libprocstat which
could be a nice interface. I haven't looked at the details yet though.
libprocstat is _itself_ a problem:
% git grep 'define _KERNEL' .
[...]
lib/libprocstat/cd9660.c:#define _KERNEL
lib/libprocstat/nwfs.c:#define _KERNEL
lib/libprocstat/smbfs.c:#define _KERNEL
lib/libprocstat/udf.c:#define _KERNEL
lib/libprocstat/zfs.c:#define _KERNEL
[...]
ok, I admit this is all FS related stuff :)
but at least it comes with the system so it matches.
we've been looking for the 'right' way to do this since, hmmm, 1988
that I remember and I bet before that too.
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