Re: [Qemu-devel] Get only TCG code without execution

[陳韋任]

> I was not talking about semantics of individual instructions but semantics
> of the whole multi-threaded program. Multi-threaded programs can lead to
> several different (most of which are unintended) states of the CPU. What
> states are possible is described in a mathematically rigorous definition of
> the ARM memory model. My task is to implement this memory model over TCG
> ops and then compare the results on several different (multi-threaded)
> litmus tests with the implementation of the memory model over ARM
> instructions. For the same task, I need QEMU to give me the TCG translation
> for code which it never branches into and hence, never needs to translate
> and execute (because ARM multiprocessors can perform speculative execution).

  Out of curiosity. What's ARM memory model? From the Wikipedia [1], it seems
ARMv7 has the same memory model as IA64.

Regards,
chenwj

[1] http://en.wikipedia.org/wiki/Memory_ordering

-- 
Wei-Ren Chen (陳韋任)
Computer Systems Lab, Institute of Information Science,
Academia Sinica, Taiwan (R.O.C.)
Tel:886-2-2788-3799 #1667
Homepage: http://people.cs.nctu.edu.tw/~chenwj