On Fri, Sep 30, 2016 at 01:07:17PM +0300, Adrian Hunter wrote: > On 30/09/16 06:49, Andi Kleen wrote: > > From: Andi Kleen <[email protected]> > > > > Change the Intel PT decoder to pass up the length and the instruction > > bytes of the decoded or sampled instruction in the perf sample. > > > > The decoder already knows this information, we just need to pass it > > up. Since it is only a couple of movs it is not very expensive. > > The decoder doesn't always fill the instruction buffer because it caches the > results from walking basic blocks. That means the bytes from the last > instruction in the basic block would need to be added to the cache.
I fixed this and posted a new version. > > I wonder if we shouldn't look at something more sophisticated e.g. a python > script that can do full disassembly. I had an earlier version that used a disassembler library, but that wasn't appreciated, so now switched to this simpler method. Assembler output can be done with a sed + objdump hack now. -Andi
