Mohamed,

Is this on Windows?

-- John


On 5/31/2016 6:25 PM, Mohamed Elsabagh wrote:
Hi John,

I pulled the latest commits to master. Now I don't get any errors, but the resulting executable file still doesn't run. It gives the same error: "cannot execute binary file: Exec format error." Any suggestions?

Mohamed



On Tue, May 31, 2016 at 6:24 PM John Detter <[email protected] <mailto:[email protected]>> wrote:

    Hey Mohamed,

    We found the issue that was causing the assert and we updated the
    master branch on github. If you want to clone or pull the most
    recent version it should have the fix for your issue.

    Let me know if you have any other issues,

    -- John

    On 5/31/2016 3:57 PM, Mohamed Elsabagh wrote:
    Hi Josh,

    I just tried again, on a vanilla VM and a fresh clone from
    https://github.com/dyninst/dyninst.git, and I am still getting
    the same exact message on stderr:

    decodeOneOperand() called with unknown addressing method 18

    And the resulting binary does not run: Exec format error.

    I also tried: `parseThat --binary-edit=ssh.dyn -i 0 /us/bin/ssh`,
    and the resulting binary (ssh.dyn) also fails to load, giving the
    same Exec format error.

    When I run `file ssh.dyn`, the output shows no interpreter.

    What do you think?

    Mohamed


    On Tue, May 31, 2016 at 3:26 PM John Detter <[email protected]
    <mailto:[email protected]>> wrote:

        Mohamed,

        I did a fresh clone from github and I was able to instrument
        /usr/bin/ssh on Ubuntu 16.04 server addition, are you sure
        you are setting your LD_LIBRARY_PATH, C_INCLUDE_PATH and
        CPLUS_INCLUDE_PATH to the right directories? You may be
        installing the newly built libraries into a directory that
        isn't being searched by GCC.

        If you are installing globally and you are installing into
        `/usr/local` you may have to include these directories in
        your environment:

        export LD_LIBRARY_PATH="/usr/local/lib"

        export C_INCLUDE_PATH="/usr/local/include"

        export CPLUS_INCLUDE_PATH="/usr/local/include"

        If you are still having issues, could you send me a tarball
        of your dyninst directory (source included)? That way I know
        we're both looking at the same thing.

        -- John


        On 5/31/2016 12:52 PM, Mohamed Elsabagh wrote:
        Yes, that's what I did. I did a fresh clone and install from
        github.com/dyninst/dyninst
        <http://github.com/dyninst/dyninst>. But I am now getting a
        different error:

        decodeOneOperand() called with unknown addressing method 18

        And even though the output binary is created, it does not
        execute (exec format error).

        Again, I am testing with /usr/bin/ssh on Ubuntu 16.04,
        without any instrumentation (open, get default module, get
        procedures, save).

        Thanks,
        Mohamed





        On Tue, May 31, 2016 at 1:22 PM John Detter
        <[email protected] <mailto:[email protected]>> wrote:

            Mohamed

            git.dyninst.org <http://git.dyninst.org> is now just a
            mirror and unfortunately it looks like it isn't quite up
            to date. http://github.com/dyninst/dyninst will get you
            the latest commits.

            If you want to update your origin:

                    git remote remove origin

                    git remote add origin
            http://github.com/dyninst/dyninst

                    git pull origin master

            -- John


            On 5/31/2016 11:57 AM, Mohamed Elsabagh wrote:
            Hi John,

            I pulled the latest commit from git.dyninst.org
            <http://git.dyninst.org>, which resulted in the error
            in my previous email.

            Now using a clone from the github path your provided, I
            am getting the following message on stderr:

            decodeOneOperand() called with unknown addressing method 18

            And even though the output binary is created, it does
            not execute (exec format error).

            Again, I am testing with /usr/bin/ssh on Ubuntu 16.04,
            without any instrumentation (open, get default module,
            get procedures, save).

            Thanks,
            Mohamed


            On Tue, May 31, 2016 at 11:37 AM John Detter
            <[email protected] <mailto:[email protected]>> wrote:

                Mohamed,

                Are you sure you are using the latest master? In my
                version of
                arch-x86.C line 7993 isn't inside the ia32_decode
                function. Could you
                try pulling from master and rebuilding/rerunning?
                If you could provide
                another stack trace that would be really helpful.

                -- John

                P.S. here is the latest commit information for master
                (http://github.com/dyninst/dyninst):

                commit df1523dd4003107b959046dd047402642f530c43
                Merge: 85cebd3 06c649f
                Author: Bill Williams <[email protected]
                <mailto:[email protected]>>
                Date:   Fri May 27 14:37:50 2016 -0500

                     Merge pull request #61 from
                dyninst/Functions_not_filed_into_correct_Modules

                     Fix Function/Module mapping

                On 5/30/2016 9:06 PM, Mohamed Elsabagh wrote:
                > There seems to be a different issue now: calling
                getProcedures() on
                > the default module of a stripped PIE results in
                an assertion failure
                > at common/src/arc-x86.C:7993. It seems that the
                heuristic gap parser
                > is trying to decode the assembly as x86_32
                instead of x86_64 (I may be
                > wrong though). Exact stack trace is attached.
                >
                > This is triggered by simply opening the binary,
                getting the default
                > module, then calling getProcedure.
                >
                > Sample offending program is /usr/bin/ssh on
                Ubuntu 16.04 x86_64.





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