> From: Alex Bennée [mailto:alex.ben...@linaro.org] > Pavel Dovgalyuk <dovga...@ispras.ru> writes: > > >> From: Alex Bennée [mailto:alex.ben...@linaro.org] > >> Any serious analysis tool should allow for us to track all memory > >> accesses so I think the guest_mem_before trace point should probably > >> be split into guest_mem_before_store and guest_mem_after_load. We > >> could go the whole hog and add potential trace points for start/end of > >> all memory operations. > > > > I wanted to ask about memory tracing and found this one. > > Is it possible to use tracepoints for capturing all memory accesses? > > In our implementation we insert helpers before and after tcg > > read/write operations. > > The current tracepoint isn't enough but yes I think we could. The first > thing I need to do is de-macrofy the atomic helpers a little just to > make it a bit simpler to add the before/after tracepoints.
But memory accesses can use 'fast path' without the helpers. Thus you still need inserting the new helper for that case. Pavel Dovgalyuk
