Re: [Qemu-devel] [RFC PATCH 00/21] Trace updates and plugin RFC

[Alex Bennée]

Pavel Dovgalyuk <address@hidden> writes:

>> From: Alex Bennée [mailto:address@hidden
>> 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.

>
> Pavel Dovgalyuk


--
Alex Bennée