Martin Buchholz wrote:

    Also, I don't follow why we need the
     execve_as_traditional_shell_script()
    function. Can you explain the reason for that?


I think my comment for that function explains it fairly well.

/**
 * Exec FILE as a traditional Bourne shell script (i.e. one without #!).
* If we could do it over again, we would probably not support such an ancient * misfeature, but compatibility wins over sanity. The original support for
 * this was imported accidentally from execvp().
 */

Actually, I was really wondering why is this code needed now?
What has it to do with the specifics of converting fork()+exec()
to clone()+exec()

Thanks,
Michael.
The tests I added also pass on the older implementation,
so execve_as_traditional_shell_script() prevents a regression.
We always supported "traditional shell scripts" - we just didn't know it.

---

I updated the public version of the patch at:
http://cr.openjdk.java.net/~martin/clone-exec <http://cr.openjdk.java.net/%7Emartin/clone-exec>

Martin


    Thanks,
    Michael.

    Martin Buchholz wrote:

        Michael,

        I think the best way to handle the coordination is in two steps.
        I'd like to get my Linux-clone changes in first (you should
        review,
        I will commit)
        and then we switch hats and I will review your Solaris changes.
        It seems best to do this in two steps: to better place blame when
        it breaks (this is very tricky stuff to get right).
        If you agree, please review my posted changes.

        Aside: Instead of griping about the missing execvpe,
        I filed a bug against glibc, and was surprised to find
        that Ulrich Drepper had implemented it a couple of days later.
        It will probably be in glibc-2.11.  Perhaps in 5 years we can
        use it ourselves...).  Thanks, Uli!

        Martin

        On Tue, Jun 2, 2009 at 07:29, Michael McMahon
        <michael.mcma...@sun.com <mailto:michael.mcma...@sun.com>
        <mailto:michael.mcma...@sun.com
        <mailto:michael.mcma...@sun.com>>> wrote:

           Martin,

           I had done something similar with clone & exec for Linux, but
           hadn't got round to testing it.
           So, it seems reasonable to take yours. Do you want to send
        me your
           updated versions of
           process_md.c and the test? I can take care of the merge
        with the
           Solaris code.





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