[Valgrind-users] File descriptor leakage tracking

[Robert W. <rj...@du...>]

Hi all,

The attached patch to the CVS head tracks open file descriptors and
dumps them out at the end of the run.  If you don't specify any
command-line options, you get a summary indicating how many fds are
still open.  If you specify --fd-list=yes, you get a more verbose list
showing the filename (if it exists) for each open file descriptor, along
with a backtrace from the point where it was opened.  If the fd was
inherited from the parent process, no backtrace is produced.

The patch knows about file descriptors created by the following system
calls: open, dup, dup2, pipe, socket, socketpair and accept.  It also
knows about file descriptors passed between processes using usix-domain
socket cmsg's.

Please let me know if I've missed any important calls.

The patch also adds VG_(lseek), VG_(readlink) and VG_(getdents) to
vg_mylibc, which some other people might find useful too.

Regards,
 Robert.

-- 
Robert Walsh
Amalgamated Durables, Inc.  -  "We don't make the things you buy."
Email: rj...@du...