Failing to build on about mcsema HOT 5 CLOSED

I got an error in ubuntu 14.04, any help? Thanks.

E:Child ptraceme failed: Permission denied
E:Resuming child failed: No such process
make[2]: *** [mc-sema/validator/x86_64/valTest/CMakeFiles/tests.out] Error 255
make[1]: *** [mc-sema/validator/x86_64/valTest/CMakeFiles/tests.out.dir/all] Error 2
make: *** [all] Error 2

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I have not yet tried on 15.04; will need to set up a VM and test.

It should build on 14.04. 'Child ptraceme failed: Permission denied' makes it sound like some kind of permissions issue... is the file its trying to run executable? Do you have SELinux or AppArmor on? It is building on Travis (https://travis-ci.org/trailofbits/mcsema/jobs/89578861) which uses Ubuntu 14.04 images.

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Try doing: sudo sysctl kernel.yama.ptrace_scope=0

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@lememta I think the problem is with an Intel PIN incompatibility with Ubuntu 15.04; It looks like other people are having similar issues with it: s5z/zsim#72

We can reproduce the problem, but not sure of a fix or workaround yet.

Also this just means that you can't run the instruction semantics unit tests, the rest of mcsema should work.

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@lememta Try building latest master -- its working for me in an Ubuntu 15.04 amd64 chroot.

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