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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