You might run it through a decompiler; then you'd be looking at the assembler at least. Peter
On Thu, May 5, 2016 at 4:51 PM, Paul McIntosh <[email protected]> wrote: > All, > > I am wondering if there is an easy way to detect if a binary makes use of > opcodes which are not available on a specific architecture? > > We have /usr/local mounted across nodes with some Intel Xeon X5650 > (Westmere) and some E5-2670 (SandyBridge). Some code spits out "Illegal > Instruction" when run on the old nodes and it appears to be due to hitting > shared libraries compiled on the newer nodes. We are going to have a > similar > situation on the newer clusters also. > > I have been putting together a test suite for our software stack and would > like to add the ability to sanity check binaries for such errors. I thought > there would be easy way to do this by looking at the opcodes (objdump) and > comparing them to what the architecture provides. However this requires > knowing all the opcodes from Intel manuals for a chip. > > I have be playing with opcode.sh > (https://gist.github.com/rindeal/72af275f05d44e10ebca) which looks > promising > but will need a bit of manual work to get it to do what I want (and still > may be incomplete/inaccurate). > > Has anyone done this? Know of a way to easily get a computer readable list > of opcodes per cpu (note /proc/cpuinfo flags just shows features not > opecodes)? > > Cheers, > > Paul > -- > Dr Paul McIntosh > Senior HPC Consultant, Technical Lead, > Multi-modal Australian ScienceS Imaging and Visualisation Environment > (www.massive.org.au) > Monash University, Ph: 9902 0439 Mob: 0434 524935 > > > > _______________________________________________ > Beowulf mailing list, [email protected] sponsored by Penguin Computing > To change your subscription (digest mode or unsubscribe) visit > http://www.beowulf.org/mailman/listinfo/beowulf >
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